text:
I'm trying to work through Spivak's Calculus on Manifolds and I've arrived at Differentiation. While I can usually follow his steps, I find myself lost or stuck when I try to do something on my own. So I decided to work through one of his first examples using $Df$ notation instead of $f'$ notation.
My main point, I have confused myself. My question is clearly asked only at the very bottom of this post.
As for the example, I need to calculate the derivative of $f:\mathbb{R}^{2}\to \mathbb{R}$, where $$f(x,y) = \sin(xy^2).$$
The following rules are available to me:
1) For a point $a$ in the domain of $f$ such that $f(a)$ is in the domain of $g$, $$D(g\circ f)(a) = Dg(f(a))\circ Df(a).$$
2) For two functions $f,g:\mathbb{R}^{n}\to \mathbb{R}$, $$D(fg)(a) = g(a)Df(a) + f(a)Dg(a)$$ and $$D(f+g)(a) = Df(a) + Dg(a).$$
If I have stated either of these rules even slightly incorrectly please be brutally in my face about it.
I'm trying to carefully apply this rules to my function.
If I let $p,s:\mathbb{R}^{2}\to \mathbb{R}$ denote the product function and $s:\mathbb{R}\to \mathbb{R}$ represent the squaring function, I can write:
$f = \sin\circ p\circ (\pi_{1}, s\circ \pi_{2})$, where $\pi_{1}$ and $\pi_{2}$ are the coordinate functions.
Now my derivative of $f$, denoted $Df$, should be a map from $\mathbb{R}^{2}\to \mathbb{R}$, just like $f$ is.
So at a point $(a,b)\in \mathbb{R}^{2}$, I can write
\begin{align*} Df(a,b) &= D\left(\sin\circ p\circ (\pi_{1}, s\circ \pi_{2})\right)(a,b)\\ &= D(\sin)(p\circ (\pi_{1}, s\circ \pi_{2})(a,b))\circ Dp((\pi_{1}, s\circ \pi_{2})(a,b))\circ D(\pi_{1}, s\circ \pi_{2})(a,b) \end{align*}
So I try to calculate this in separate blocks:
\begin{align*} D(\sin)(p\circ (\pi_{1}, s\circ \pi_{2})(a,b)) &= \cos(p\circ (\pi_{1}, s\circ \pi_{2})(a,b))\\ &= \cos(p\circ (\pi_{1}(a,b), [s\circ \pi_{2}](a,b)))\\ &= \cos(p\circ (a, s(b)))\\ &= \cos(p\circ (a, b^2)))\\ &= \cos(ab^2). \end{align*}
But this brings me to my first (among several) points of confusion.
In the equation: $$Df(a,b) = D(\sin)(p\circ (\pi_{1}, s\circ \pi_{2})(a,b))\circ Dp((\pi_{1}, s\circ \pi_{2})(a,b))\circ D(\pi_{1}, s\circ \pi_{2})(a,b)$$ it appears $D(\sin)(p\circ (\pi_{1}, s\circ \pi_{2})(a,b))$ should be a function, not a number. Can someone point out what my error in thinking is? (answered below)
Continuing on to compute the 3rd block,
\begin{align*} D(\pi_{1}, s\circ \pi_{2})(a,b) &= (D\pi_{1}(a,b), D(s\circ \pi_{2})(a,b))\\ &= (\pi_{1}(a,b), Ds(\pi_{2}(a,b))\circ D\pi_{2}(a,b))\\ &= (a, Ds(b)\circ \pi_{2}(a,b))\\ &= (a, 2b\circ b)\\ &= (a, 2b^2) \end{align*}
Now the middle one:
\begin{align*} Dp((\pi_{1}, s\circ\pi_{2})(a,b)) &= Dp((\pi_{1}(a,b), (s\circ \pi_{2})(a,b))\\ &= Dp(a, b^2) \end{align*}
Now substituting these smaller calculations, the whole thing simplifies down to: \begin{align*} Df(a,b) &= D(\sin)(p\circ (\pi_{1}, s\circ \pi_{2})(a,b))\circ Dp((\pi_{1}, s\circ \pi_{2})(a,b))\circ D(\pi_{1}, s\circ \pi_{2})(a,b)\\ &= \cos(ab^2)\circ \underbrace{Dp(a, b^2)\circ (a, 2b^2)}_{= a\cdot 2b^2 + b^2\cdot a}\\ &= \cos(ab^2)(3ab^2) \end{align*}
Now I will insist that I have something wrong. $Df(a,b)$ should be a map from $\mathbb{R}^{2}\to \mathbb{R}$. But it has collapsed into a single real number.
Spivak calculates the derivative using Jacobian notation, arriving at the conclusion that $f'(a,b) = (b^2\cdot\cos(ab^2), 2ab\cdot \cos(ab^2))$, which naturally is the transformation matrix for a map $\mathbb{R}^{2}\to \mathbb{R}$.
Sorry this problem is so long winded, but I wanted to show all my steps so as to be able to identify the one that went awry.


text: The matching LED flashers are now available to go with the LED rear light on your BMW F 650/800 GS. They are notable for being exceptionally long-lasting. They wont "burn-out" like ordinary bulbs do! They are not sensitive to vibrations, weigh very little - and are visually a complete delight! They ignite abruptly and are noticed more readily than incandescent bulbs. The set consists of all 4 flashers plus the attachment materials. Carries the EU test mark, so theres no need to have your records changed.

subset: commoncrawl


text:
Little Bear and the Marco Polo (Hardcover)
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Since Else Holmelund Minarik's beloved Little Bear made his debut more than fifty years ago, generations of children have grown up with Little Bear by their side, delighting in his charming adventures and curious spirit.
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About the Author
Else Holmelund Minarik first introduced readers to her timeless character in the classic Little Bear. Publication of this book, with illustrations by Maurice Sendak, launched the I Can Read series. This much-loved author continues to write stories for children at her home in North Carolina.


text:
My wordpress has been hacked for 2 or 3 times. How can I increase its security? Is it a good way to rename the
index.php in
wp-admin directory?
My wordpress has been hacked for 2 or 3 times. How can I increase its security? Is it a good way to rename the
Renaming files will not make your blog more secure. Obscurity, hiding trivial information, is not a real security concept.
Make sure you have the latest versions of Wordpress, plugins and themes.
Never use pirated/cracked/nulled plugins or themes as they often have backdoors.
Older themes had a bug related to Timthumb. Try this plugin to check for the latest version (if you're using Timthumb).
You can also use a plugin like this one to get some more control over your website.
The problem may not come from WordPress itself, but it could also be that you've got a keylogger on your system. Read Hardening WordPress to get a general idea about what you should do.
Renaming the
What you really need is something like "Better WP Security": http://wordpress.org/extend/plugins/better-wp-security
It's the number 1 plugin for Wordpress security.


text:
What does "nano" mean in Spain? Is it an offense to call somebody "nano"? Somebody in Spain called me "nano" and I don't know what it means.
Hola, nano, que tal todo?
'Nano' is a shortened form of 'Enano' ('dwarf'). 'Enano' itself is used in some areas to refer to children:
In Comunidad Valenciana, this shortened form 'nano' is more commonly used than 'enano' due to the influence of Catalan (the sister language of Spanish speaked in Andorra, Catalonia, Comunidad Valenciana and Baleares, which is named as Valencian there, albeit being the same language). Also, it has get commonly used to speak to (not about) people who are not children but you have confidence to speak to in that way.
It is clearly not formal, but I would not say it is clearly vulgar.
Here in Chile is very very common call "nano" to people whose name is "Fernando", "Hernando", or any name composed by [*]nando. We say that "a los Fernandos se les dice Nano" (something like "someone named Fernando would be called Nano". As common as informal. I don't know the country where it was heard, so answer this question just in case.
It is usually used in Comunidad Valenciana (Spain) to, as you do in english:
It is a Spanish slang word. It is not an offense.
But as I suggested you in the "o sea" question, do not use it, it is kinda vulgar


text:
Orange Graphics team is looking for 3d modeling/texturing work
Orange Graphics team is looking for 3d modeling/texturing work, preferably concerned with non-organic modeling/texturing (vehicles, props, architecture) and rigging/animation (Max, Maya).
We can allocate up to 10 artists for any game project.
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Other tools, including UDK
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Feel free to contact us at email@example.com to request bid for your projects or learn more about our team.
|All times are GMT -8. The time now is 07:33 PM.
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Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.


text:
Baby Alpaca, Super Fine Alpaca, Extra Fine Merino Wool and Nylon, blended together creating a super soft extra lightweight yarn with the meterage of a 4ply weight. The chainette construction gives the finished fabric a beautiful soft weightless feel, to knit and wear.
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Our ever popular Kidsilk Haze is a beautiful and versatile fine yarn made from a blend of super kid mohair and silk.


text:
|My former neighbor Carol gave me this completely fabulous steak marinade recipe!
Carols Completely Fabulous Steak Marinade and Grilled Tri Tip Recipe
(Makes 4-6 servings, thanks to Carol for the recipe!)
2 lbs. Tri Tip steak (half the large Costco package)
3-4 T Montreal Steak Seasoning (purchase or use the recipe for Kalyn's take on Montreal Steak Seasoning)
Marinade Ingredients:
2 T fresh squeezed lime juice (one lime unless they're puny)
2 T Worcestershire Sauce (Be sure to look for gluten-free Worcestershire sauce if needed)
2 T balsamic vinegar
1 tsp. minced garlic (can use garlic powder but I used minced garlic)
2 T olive oil
Trim any visible fat on outside of Tri Tip pieces, and cut into serving size pieces if desired. Rub all sides of steak pieces with Montreal Steak Seasoning. Put steak into large Ziploc bag or plastic container with tight-fitting lid and add lime juice, Worcestershire sauce, balsamic vinegar, garlic, and olive oil. Seal bag or plastic container and turn over a few times to mix marinade ingredients. Let steak marinate in refrigerator 8 - 24 hours.
When ready to cook, take meat out of refrigerator, drain marinade, and let meat come to room temperature. Preheat gas or charcoal grill to high (you can only hold your hand there for a few seconds at that heat.)
When steak is room temperature and grill is hot, put steak on grill. For nice grill marks, place steak at a diagonal to grill slats, after about 3 minutes, rotate 45 degrees on same side and cook a few more minutes. Turn steak over and cook until desired doneness.
You can see from the photos that I like my meat fairly rare, and I cooked this tri tip just over 8 minutes, but actual cooking time will depend on grill temperature, thickness of the meat, meat temperature, and even the temperature of the air if cooking outside. With steak this thick, I recommend using an inexpensive instant-read meat thermometer to tell when it's done. (Temperatures on the thermometer say 145 F for medium rare, 160 F for medium, or 175 F for well done, but I cook it a bit less than that.) Serve hot. I in the photo I sliced some of the pieces against the grain into 2-bite sized pieces.
Carols Tips for Marinating:
Carol says she has even marinated this as long as two days, and it still turned out great. She's also frozen the meat in the bag with the marinade and thawed it when she wanted to cook the pre-marinated meat.
Kalyn's Tip for Leftovers:
I ate the leftover steak with a slightly kicked up version of this Chimichurri Sauce, and loved the way it paired with the steak.
South Beach Suggestions:
The South Beach Diet recommends choosing steak that's less than 10% fat, and although this is a fairly lean cut, I'm guessing it's slightly higher than that. I would still eat this, but for me it would be a "once-in-a-while treat."
Nutritional Information?
More Ideas for Tri Tip Steak:
(Recipes from other blogs may not always be South Beach Diet friendly; check ingredients.)
Grilled Tri-Tip Steak with Chimol Salsa
Marinated Tri-Tip Roast with Mushrooms and Garlic from Simply Recipes
Grilled Tri-Tip Steak with Bell Pepper Salsa from Simply Recipes
Santa Maria Tri-Tip Steak from White Trash BBQ
Marinated Tri-Tip Roast from Wasabi Bratwurst
(Want even more recipes? I find these recipes from other blogs using Food Blog Search.)
Blogger Disclosure:


text:
Hello Forum,
In a short time the RS-1 became one of my favorit pano heads.
The reason for this is the combination of low weight, small size and the fact that you can shoot the zenith shot in NPP.
Having the option to shoot a zenith shot in NPP is very important when making a pano inside a building, of course with other lens ring panoheads this is often also possible but it requires some extra actions to shoot the zenith shot in NPP.
Here are a couple of panoramas from the PanoTools Meeting 2012 in Den Haag I made with a RS-1 on top of a Fanotec Series 2 pole with Tripod Adapter and a Feisol tripod (6 round shots + 1 zenith shot).
In the scene a lot of Nodal Ninja people are present, I am sure they will recognize themselves :-)


text:
Hi all,
I have been experimenting with my brand new NN5L at home, and it seems that I cannot get the rail settings right, I've used those from the NN website, but there remain parallax/stitching errors (used PTGui).
Anybody who has the same camera/lens and the same problem, or maybe does not have the problem...
I have added a sample picture. Camera was tilted -10 degrees for smaller nadir footprint.
Like to here your opinion.
Thanks and have a nice day!


text:
7 Ways to Go from 'Cute' to 'F-ing Gorgeous'
You're adorable, which is awesome. But there are times when you want to look smokin' hot, right? Follow these celebrity makeup artists' tips to amp up your look -- instantly
Before you put away the concealer brush, check these areas, says mark celebrity makeup artist Fiona Stiles (who's worked on celebrities like Halle Berry and Reese Witherspoon): "Always conceal the outer corners of the eyes, outer edges of the nose, and outer corners of the mouth," she says. "These are often overlooked areas of redness and discoloration that when concealed, really perfect your look without using a lot of makeup."
SEE NEXT PAGE: Give your lashes highlights
Older comments
Wonderful article! I never considered most of these.
by Bon_Bon Friday, May 10, 2013 at 09:21AM Report as inappropriate
These are some great tips!
by tallredamanda Tuesday, April 23, 2013 at 08:00AM Report as inappropriate
Great Info! I cant wait to incorporate some of the tips into my routine.
by 2xxxy Saturday, April 20, 2013 at 09:20PM Report as inappropriate
Good info to know. How eye makeup should be used and applied is the most important thing to me. :)
by Murfonic Tuesday, April 16, 2013 at 03:44PM Report as inappropriate
Thanks for the tips
by Alana_Danes Tuesday, April 16, 2013 at 01:00AM Report as inappropriate
by mirmir27 Sunday, April 14, 2013 at 10:42AM Report as inappropriate
Nice tips
by talecon Friday, April 12, 2013 at 09:34AM Report as inappropriate
kind of like the idea of mixing black and brown false eyelashes....
by Chris213 Sunday, April 7, 2013 at 08:06AM Report as inappropriate
by Mollysunshine Saturday, April 6, 2013 at 05:20AM Report as inappropriate
Can you please tell me some natural skin glowing tips? Because, I dont like to go with chemicals.
by sharmilabanu Thursday, April 4, 2013 at 12:13AM Report as inappropriate
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Chips or dessert & regular fountain drink w/ purchase
Same as the last one, expires on 1/22. Free chips or dessert and regular fountain drink with purchase of regular or large sub, large salad, or large grilled flatbread. Excludes "create your own" subs.
19 Comments add a comment
Ok so let me save a few people some posts:
- Some believe Quiznos is over-priced. It doesn't cost me $40 to get a sandwich so apparently the mark-up is horrendous wherever @pleepleus lives)
- Some also say that Quiznos treats their employees terribly. I'm not sure which one @cmackin used to work for, but to the best of my knowledge, each store is an independently-owned franchise.
- No, I don't work there, I don't have any family or friends that work for the company, I just fell in love the first time I sank my teeth into a Chicken Carbonara. I don't eat it every day but the coupons help make the decision easier when I'm being indecisive.
Thanks for the post. Some people just have something bad to say about everything, don't let that stop you.
@bsw321: I want a nickle for every Quiznos post on deals.woot. Apprently money grows on trees where ever bsw321 lives. Quiznos is a huge rip-off.
Not sure if I trust this coupon or the quiznos around me are just plane clueless. Gave this coupon to a friend who works near quiznos and when she tried using it, they claimed that no such promotion was occuring. It has happen to me once but with a different deal that they advertised. Probably 3 years ago they tried the 5 dollar sub thing, but instead of telling you what subs are 5 dollars they let you pick making you believe they were all 5 dollars. Afterwards you see an 8 dollar bill thinking your sub was suppose to be around 5 dollars. I think that when the people dislike for quiznos grew even further.
@bsw321: Totally agree! another Chicken Carbonara lover here.
I generally get out of Quizons for ~$5 including small sub, drink and chips, a heck of a deal IMO. The "other" $5 sub place occasionally has a few footlongs for $5 but drink and chips would add another $2+, they also occasionally have the same small sub, drink and chips as Quizons for $5 but their bread is nowhere near as good as Quizons and their "toasting" is a joke. I also dislike Coke products so I like it I can get Diet Mt. Dew at Quizons, at the other subway place I don't even bother with a drink, Mellow Yellow is a joke and I don't need the extra calories since they don't have diet MY. If you only like Coke or prefer the other subs fine don't go their but don't knock Quizons for being overpriced when "with a coupon" they are the same price as other restaurants.
Oh like you I have no stake in Quizons, just like their subs and with a coupon feel they are a great deal.
Thanks for posting the deal!
My one complaint about Quizons(other than withOUT a coupon they can get expensive) is they don't seem to have very good control of their franchisees. I had a Quizons near me that refused to take a coupon(it was even a color one from our local slicks). I argued with the owner who said he was tired to everyone using a coupon! I left without purchasing anything and wrote Quizons corporate thinking they would crack down on this rogue guy. To my dismay they said they couldn't do too much about it, I also mentioned it looked like the store was using generic drink cups instead of the Quizons ones, I assume the owner got them cheaper than Quizons wanted but again they didn't seem too concerned. A day later they did email me back with a coupon for a free meal and suggested another local Quizons(but the wrong direction I normally go). I used the coupon at the other Quizons with no problem and never returned to the other one. Several months later the bad Quizons closed, RIP!
@benmason: I had similar issues a couple years back, one of the local restaurants had a different owner than the others, seems they kept their employees in the dark for quite some time about company promotions and finally posted a "NO COUPON" sign on the door. I think this coincided with the Quiznos free sub giveaway (that I wasn't lucky enough to be included on) that created a big stink with franchise owners: http://snipurl.com/265np9f I understand that coupons take time and money to get reimbursed (IF corporate reimburses), but it's not fair to be dishonest with your employees and make them look dumb while frustrating your customers.
@jjeff: In my case, the Quiznos that didn't honor coupons got bought out by another franchise owner in the area. They take coupons now. :)
Panera Bread FTW!!!!!
I watched in horror as my sub was caught in the conveyer belt, toasting into oblivion. There was only one lady and she was making subs for the people behind me and I watched with widened eyes as my sub went up in flames. That being said, I love Quizno's. I will gladly take this coupon.
@jjeff: What in the world is Quizons?
@xyphox: It's the French version of the franchise...
@slamminbeers: Are you kidding? I would have yelled and cheered at such a sight, at least if I wasn't in a hurry.
@pleepleus: I'd send you a quarter or two for the nickle-every-time request but postage goes up tomorrow...
It's not a good deal because Quizno's doesn't give their employees free health care. I think their owner is rich too. Everybody join the boycott. Who's with me
Sad day, I probably would have used this but the Quiznos near me went out of business and was replaced with a BBQ joint.
Quiznos is still around?!
@bsw321: thanks for the link to http://consumerist.com/2009/02/27/why-the-quiznos-free-sandwich-promo-burnt-some-customers/
looking at the internal memo (total of 700 coupons allowed, "total reimbursement available is now $525"), as well as separate note that corporate "is reimbursing it's franchisees for the cost of all of the free subs"... well, $525/700 = $0.75.
So the cost-price of a Quznos sub is 75 cents! Wow, just wow. Take that, all those feeling giddy for scoring sub + drink + chips combo for "only $5".
Wow reading that link(I got about 1/2 the way through the comments) I see where someone like pleepleus is coming from. Of course this doesn't change the fact that with a coupon and a well run store like the ones near me Quiznoes can be a good deal for me the consumer. I really like their sandwiches and until they no longer become a good deal I'll seek them out.
Also note that link is from early '09(4 years ago) things "may" have changed.......hope so anyway.


text:
I was just browsing through a user's reputation history (45243) and noticed that there is a massive drop in reputation there, all for one question (-452 rep). How does this happen - did he really get down voted that much?
What is meta?
- Any Stack Exchange user can ask a question
- The community provides support, votes on ideas, and reports bugs
- Your voice helps shape the way Stack Exchange operates
Considering the fact that that question has 7 up votes which exactly correspond to the amount of positives rep he got and considering the answer had a bounty associated with it
Nathan Koop asked in a comment:
My dear
Have a look at the user's (let's call him
And if you check you'll see that the person who wrote the accepted answer (we'll call him
I see you've learned from me after all, no nothing so sinister, have a look at the question, it's regarding boolean operations, how to negate a boolean value. What kind of programmer would you expect to ask such a question?
I think
As I said not everyone shares your motivations, or mine for that matter, I'm sure some would say that we're spending way too much time on such a trivial matter.
In this case, it was a bounty; however, other possible causes not in this case but in general:


text: Madonna (born August 16, 1958) is an amazing American singer, songwriter, actress and entrepreneur. To me, she is a precursor to Lady Gaga. I love her style of the female fashion trend of the 1980s of fishnet stockings, lace tops, and crimped bleached hair. It was created by stylist and jewelry designer Maripol. This is what the tutorial picture is based on and I took my time while drawing the picture, enjoying the process along the way. I've made this tut "Advanced" because of her hair and jewelry. I'm hoping you can learn to draw from this tutorial and find it helpful. Everyone... peace & joy to you with love!


text:
Hi everybody, I looking for tennis partners. I can play most days of the week except some evenings (We – Sa). Usually play in park La Fontaine but I don't mind to travel. Thanks!
Views: 396
Replies to This Discussion
Hi Vadym,
I'm on the Plateau not far from Lafontaine. Havent' played in a coule years but want to get back into it. I'm a 3-3.5.
Give me a shout if you want to hit sometime (usually weekends or evenings) once the season starts at the end of April.
Hello Robert, It would be great to play with you.
I have played rarely last winter, so can't wait for the season to start ))
Let's keep in touch.
The best way to keep in touch with me is at email@example.com.
Hope to hear from you soon. Can't wait to get back out there.
Hi, any chance you can play tonight at 9, indoors, stade uniprix?
© 2016 Created by Mark / The Mayor. Powered by


text:
Sept. 21, 2012 -- If you're at risk of obesity because of your genes, you may also be more at risk for weight gain from sugary drinks.
That's according to new research published in the New England Journal of Medicine.
In people with a high genetic risk for obesity, getting a lot of sugar from sugar-sweetened drinks may amplify the genetic effects on obesity, says researcher Lu Qi, MD, PhD, an assistant professor of nutrition at the Harvard School of Public Health.
Qi's study and two others looked at the effects on weight gain of sugary drinks -- including sodas, fruit punches, lemonades, or other fruit drinks.
The new research should inspire people to give up sugary drinks or consider them an occasional treat, says David Appel, MD. Appel is the director of the Montefiore Medical Center School Health Program and associate professor of clinical pediatrics at Albert Einstein College of Medicine.
"These three studies give very clear evidence that drinking sweetened beverages even in modest amounts clearly results in increased weight and excess weight," he says.
In a statement, the American Beverage Association countered: "We know, and science supports, that obesity is not uniquely caused by any single food or beverage."
Sugary Drinks and Genes
Evidence is already strong, Qi says, that sugary drinks are linked with weight gain.
His team wanted to look at whether the effect of sugary drinks differs depending on individual genetic risk for obesity.
Qi's team looked at more than 33,000 people and calculated a genetic-risk-for-obesity score.
The genetic risk scores ranged from 0 to 64.
For every 10 points on the genetic risk score, those who had the fewest sugary drinks had a 35% higher risk of obesity, he found. This group had less than one sugary drink a month.
For every 10 points on the genetic risk score, those who had the most sugary drinks, one or more a day, had a 235% higher risk of obesity, he found.
"If you reduce your intake of sugary beverages, your genetic risk of obesity may be lessened," he says.
His research found a link between sugary drinks, genetic risk, and excess weight, not cause and effect.
Qi received funding from Amgen for the study.


text:
Gourmet Trends Lilli-Cakes Bake Set for $5
+2.99 ship
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1.375 inch Diameter Lolli-Cakes
Tray Dimensions: 6 x 6 x 1.625 inches
*Sticks not included.


text:
Endurance exercise and metabolism are linked to transcriptional activation of human telomeres, researchers propose.
Speaking of Science
October 1, 2011|
A selection of quotes from past issues of The Scientist.
October 1, 2011|
A selection of quotes from past issues of The Scientist.
September 29, 2011|
A handful of life science researchers will take home the United States' top science honor.
September 28, 2011|
"Scientists Against Sample Abuse" aims to raise awareness about the importance of consistency when it comes to handling biological samples.
September 27, 2011|
A German ethics council weighs in on the discussion about the use of human-animal chimeras in research.
September 27, 2011|
The funding agency is taking strides to avoid losing parents from the scientific workforce.
September 22, 2011|
A 2012 spending bill, approved by a Senate panel yesterday, would trim the NIH budget by $190 million.
September 19, 2011|
A lawsuit accuses a Baltimore medical institute of exposing children to lead poisoning in the 1990s.
September 14, 2011|
New doping tests that could be used at the 2012 London Olympics should ward off cheaters better than ever before.
September 12, 2011|
Discoveries in protein folding and malaria treatment are recognized by the Albert and Mary Lasker Foundation.
September 9, 2011|
An artist suggests that being buried in a suit laden with decomposing fungi may be healthier for the mind and the environment.


text:
Yes, the Evil Dead remake is actually happening. Yes, the script is being... tarnished, er... polished by Diablo Cody. No, there is no God. Honest to blog.
Via AV Club:
"Sam Raimi and original producing partners Rob Tapert and Bruce Campbell (who also starred in the original franchise) are gearing up to remake their cult sensation THE EVIL DEAD through their long standing Ghost House Pictures partnership. Raimi and Tapert were such instant fans of Fede Alvarez's short film "Panic Attack" that they set up a blind deal with the filmmaker and through that process have attached Fede Alvarez to write and direct the film. Alvarez wrote the script with Rodo Sayagues. Academy Award® winning screenwriter Diablo Cody is currently doing revisions on the draft. Ghost House is committed to renewing the franchise and has the film on the fast track.
Raimi, Tapert and Campbell will serve as producers. Ghost House Pictures partners Joe Drake and Nathan Kahane will executive produce. Nicole Brown and J.R. Young will oversee the project for Ghost House. Lionsgate will handle international sales on the film.
The three producing partners commented, "We are committed to making this movie and are inspired by the enduring popularity and enthusiasm for the 'Evil Dead' series. We can't wait to scare a new generation of moviegoers using filmmaking techniques that were not available to us thirty years ago as well as Fede bringing a fresh eye to the film's original elements."


text:
New York Times bestselling author Jefferson Bass delivers an authentic and knuckle-biting thriller in which forensic anthropologist Dr. Bill Brockton must confront a crime of unimaginable proportions on his own doorstep. Find out why Booklist says, "Fans of forensic fiction will want to add this author to their list of favorites."
The Bone Thief
Dr. Bill Brockton has been called in on a seemingly routine case, to exhume a body and obtain a bone sample for a DNA paternity test. But when the coffin is opened, Brockton and his colleagues, including his graduate assistant Miranda Lovelady, are stunned to see that the corpse has been horribly violated.
Brocktons initial shock gives way to astonishment as he uncovers a flourishing and lucrative black market in body parts. At the center of this ghoulish empire is a daring and prosperous grave robber. Soon Brockton finds himself drawn into the dangerous enterprise when the FBI recruits him to bring down the postmortem chop shopusing corpses from the Body Farm as bait in an undercover sting operation.
As Brockton struggles to play the unscrupulous role the FBI asks of him, his friend and colleague medical examiner Eddie Garcia faces a devastating injury that could end his career. Exposed to a near-lethal dose of radioactivity, Dr. Garcia has lost most of his right hand and his entire left hand. Out of options, he embarks on a desperate quest: both of his ravaged hands will be severed at the wrist and replaced with those from a cadaver. But unless suitable ones are found soon, the opportunity will be lost.
As Brockton delves deep into the clandestine trade, he is faced with an agonizing choice: Is he willing to risk an FBI investigationand his own principlesto help his friend? Will he be able to live with himself if he crosses that line? Will he be able to live with himself if he doesnt? And as the criminal case and the medical crisis converge, a pair of simpler questions arise: Will Dr. Garcia surviveand will Brockton?
About the Author
Jefferson Bass is the writing team of Dr. Bill Bass and Jon Jefferson. Dr. Bass, a world-renowned forensic anthropologist, founded the University of Tennessee's Anthropology Research Facilitythe Body Farma quarter century ago. He is the author or coauthor of more than two hundred scientific publications, as well as a critically acclaimed memoir about his career at the Body Farm, Death's Acre. Dr. Bass is also a dedicated teacher, honored as National Professor of the Year by the Council for Advancement and Support of Education. Jon Jefferson is a veteran journalist, writer, and documentary filmmaker. His writings have been published in the New York Times, Newsweek, USA Today, and Popular Science, and broadcast on National Public Radio. The coauthor of Death's Acre, he is also the writer and producer of two highly rated National Geographic documentaries about the Body Farm.


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This is the question. Is it known that a symplectic $4$-fold with $b_2>1$ should have a homology class $C$ with $C^2<0$?
Symplectic geography in 4 dimensions can be mapped using Chern number coordinates $(c_1^2,c_2)$. The part of the plane where $c_1^2 > 4c_2$ is uncharted. It's unknown whether there are any symplectic 4-manifolds in this region, besides blow-ups of ruled surfaces, though by the Bogomolov-Miyaoka-Yau inequality and the Kodaira-Enriques classification, there are no complex surfaces.
I can't answer the question but I'll point out that a symplectic 4-manifold with $b_-=0$ and $b_+>1$ necessarily lies in this unknown region - in particular, it's not Kaehler.
To see this, rewrite $c_1^2-4c_2$ in terms of Euler characteristic $\chi$ and signature $\sigma$ as $(2\chi+3\sigma)-4\chi$. For a symplectic manifold with $b_-=0$, this quantity equals $4b_1+b_2-4$ and is positive unless $b_1=0$ and $b_2= 1$ or $3$; I use the parity argument mentioned in Paul's comment. If $b_1=0$ and $b_2=3$ then the intersection form on $H_2/tors.$ is $\mathbb{Z}^3$, the unique rank 3 positive-definite unimodular lattice. So $c_1^2=15$ is the sum of three squares; but it's not.


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First-Year Composition
First-year composition courses play a central role in the education of Ithaca College students. Our goal is to help students develop or refine the writing and reading abilities that they will need for their work in majors across campus and for successful lives as professionals and citizens. Most degree programs at Ithaca College require at least one first-year composition course. Our curriculum speaks to the needs of students who require instruction in the basics of academic writing as well as those who arrive on campus with a solid background in composition.
The Department of Writing strives to offer a first-year composition curriculum that represents the most current thinking and the best pedagogical practices in our discipline. Our central goal is to produce writers who are "rhetorically aware," who analyze the social contexts that create occasions for writing, consider the needs of potential audiences, and make wise choices about content, format, and style. We encourage our students to become active participants in ongoing discussions that are taking place in academic literature and public discourse. Our courses emphasize a process approach to writing that involves critical thinking, drafting, and revising. Academic writers typically back up their assertions with support from published sources and follow standard procedures for borrowing and documenting those ideas; they also observe conventions for organizational structure, grammar, usage, and mechanics. Our courses identify those conventions, but also indicate points where conventions vary according to genre and context. See our course descriptions for details about our approach to writing instruction.
Direct questions about our program to Professor Susan Delaney, First-Year Composition Coordinator, Smiddy 402, email@example.com, 607-274-5143.


text:
|Morning Yoga
Event Type: Library Programs & Classes
Date: 7/1/2013
Start Time: 10:00 AM
End Time: 11:00 AM
Learn Yoga poses in a safe and fun environment! Discover how Yoga can improve strength and flexibility in your body. Study the fundamentals of yoga postures and lay the foundation for an effective yoga practice. The instructor will guide students on how to execute each pose within their ability. This class will focus on improving flexibility and gaining clarity in the mind. We will work on balance and postures to keep the core strong.Map and Directions to the Brentwood Library
Location: Call Library for Meeting Room B
Presenter: Connie Long
Status: Closed


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This is a program that I found which takes a purely alphabetical message, converts the letters to their ASCII values and combines them with the ASCII values of an alphabetical key (wrapping around when it gets to Z).
{EDIT: I should emphasize here that the key being used is fully random and is at least a long as the message: that this particular program gives an "Invalid Key" error when the key is not at least as long as the message.
I just realized the instructions say "so the same one-time pad can be used for multiple messages". What I intended was to tack message after message onto the same ciphertext, so a 1000-character key can support ten 100-character messages, one after the other}
And this file contains the encrypting part of the javascript:
But from what I usually read about one-time pads, the message and the key are in binary, and the bits in the message is XORed with the key to produce the ciphertext.
Combining the ASCII values sounds like a similar but obviously very different process. Is this a valid way to implement a one-time pad? Or does the process merely resemble the binary XOR and doesn't have the same cryptographic properties as a one-time pad?


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FORT RILEY, Kan. (WIBW) -- Senior leaders say suicide is one of the toughest enemies faced by our Army.
Vice Chief of Staff of the Army General Lloyd J. Austin III addressed the issue in July when officials toured Fort Riley to assess the overall health of the force.
"It is about building resiliency in soldiers and families. It is about engaging soldiers early on and building that network of trust and support that's required to keep folks on the right track," Austin said at a press conference during his visit to the northeast Kansas installation. The leaders visited six installations during the "Health of the Force Tour."
Sergeant Major of the Army Raymond Chandler III also focused on suicide rate when he traveled to the Home of the Big Red One to talk with soldiers two weeks ago.
Chandler was quoted by the Army News Service on Sept. 26 as saying: "Suicide is an enemy we have yet to defeat. Our ultimate goal is to change mindset across the force, build resilience, strengthen life-coping skills and address the stigma associated with asking for help. We've got a long ways to go, but we're going to get there."
This week, Fort Riley is taking part in an Army-wide "suicide stand down." Soldiers have been ordered to put aside their usual duties and focus on suicide prevention training.
"In response to the high number of suicides that have occurred in the Army over the past few years, Army leaders have issued an order for us to conduct a suicide stand down day and in response to that, this week, we've done a community resource fair where we're highlighting the resources available to soldiers and families on the installation geared towards improving their health and well being just in areas of alcohol, substance abuse, domestic violence, just behavioral health. And we're also offering speakers throughout the week that are geared towards promoting the health and well being of soldiers. Our chaplains are helping with the spiritual side and emotional health, just letting people know that they are available if they need anyone to talk to if they're going through a rough time in their life," explained Tara Lopez with the 1st Infantry Division's Health Promotion Operations.
Speakers talked about how to recognize signs of suicidal behavior and strategies to intervene.
As a spin on the rather grim topic, Fort Riley encouraged soldiers to focus on what they live for each day to help them remember the positive things in their lives.
The challenge for Army leaders is changing soldiers' mindset that asking for help is a weakness when officials say it should be seen as a strength. The "stand down" activities were designed to help make soldiers aware of who they could turn to for help.
During the Health of the Force press conference in July, Fort Riley Senior Commander Brigadier General Don MacWillie said: "It takes courage and strength to come forward and say 'I need some help' so if we can break through that at that very bottom level, we'll see success. The second piece is, we've got to educate and empower some leaders across the board to not only know their solders but also indicators and stressors. We watch out for one another on the battlefield, we're going to look out for one another here at home."
"The most important thing that the Army needs to realize is that in order for this to be an effective program, the soldiers have to be willing to step up and help themselves and then the chain of command can lead them in the right direction," said Sgt. Jeremy Capron, a Fort Riley soldier.
The Army is the largest of the services and it has the highest number of suicides.
September is recognized nationally and by the Army as Suicide Prevention Month. The theme for this year's observance is "A Healthy Force is a Ready Force."


text:
Sea Surface Temperatures of the Southern Okinawa Trough
Were they unusual during the 20th century? No, not during the past two millennia, as this study suggests that modern warming cannot be distinguished from warming induced by "natural processes," which ultimately suggests there is no compelling reason to attribute modern warming to anthropogenic CO2 emissions... Read More
Cyanobacteria of the Subtropical North Atlantic Ocean (25 December 2012)
How do they respond to atmospheric CO2 enrichment? Quoting the team of researchers that conducted the study, their results for Trichodesmium, along with the similar results of several other marine scientists, suggest that "ocean acidification would likely result in a positive feedback on the growth and physiology of natural populations, resulting in a positive change in their role in ocean carbon and nitrogen cycles," which is, of course, great news for the biosphere!... Read More
The Greenland Ice Sheet: What It's Been Doing Lately (25 December 2012)
A new report "challenges predictions about the future response of the Greenland Ice Sheet to increasing global temperatures"... Read More
Ocean Acidification Effects on Two Predator-Prey Relationships (25 December 2012)
In which direction do they shift as acidification occurs: in favor of the predator or its prey? ... or do they shift at all? Results of this study "illustrate that different stress effects on interacting species may not only enhance but also buffer community level effects," further emphasizing that "when stress effects are similar (and weak) on interacting species, biotic interactions may remain unaffected"... Read More
Marine Reserves May Ameliorate the Negative Consequences of Both Local and Global Stressors of Sea Life (26 December 2012)
Is there actually something out there in "we-should-do-it land" that climate alarmists and skeptics can agree upon? It would seem they both would deem it wise to establish more marine reserves throughout the world's oceans, in order to help prevent the deleterious effects of (1) verified local threats and (2) postulated global threats to the well-being of Earth's marine life... Read More
Just How Icy was the Little Ice Age? (26 December 2012)
The question is very important, as the interglacial record cold of the Little Ice Age was the springboard from which modern global warming was launched... Read More
Earth's Land and Water Surfaces: Net Sources or Sinks for CO2? (26 December 2012)
Real-world evidence trumps coupled climate/carbon-cycle models ... and in a really big way, as "although present predictions indicate diminished C uptake by the land and oceans in the coming century, with potentially serious consequences for the global climate, as of 2010 there is no empirical evidence that C uptake has started to diminish on the global scale." In fact, as their results clearly indicate, just the opposite appears to be the case, with global carbon uptake actually doubling over the past half-century... Read More
The Ability to Identify Category 4 and 5 Atlantic Hurricanes with Mid-20th-Century Tools (1 Jan 2013)
Were the tools of that earlier age good enough to do a good enough job? In a word, no. And that discrepancy may very well temper the historicl hurricane counts... Read More
Lake Restoration in a Warming World (1 Jan 2013)
Do rising temperatures help or hinder human efforts to restore freshwater planktonic ecosystems to more primitive and species-rich conditions? The present analysis suggests "that climate warming and re-oligotrophication may favor an increase in spatial (depth) heterogeneity in the water column of deep lakes, enhancing the potential for phytoplankton species co-existence and an increase in plankton richness"... Read More
Eight Decades of Glacier Movements in Southeast Greenland (1 Jan 2013)
The team of Danish and U.S. scientists report that two recessional events stand out, one that occurred during the 1930s (1933-1943) and another that occurred during the 2000s (2000-2010); and they state that the second of these retreats was "matched in its vigor" during the "period of warming in the 1930s with comparable increases in air temperature"... Read More
Effects of Ocean Acidification on Marine Coccolithophores (1 Jan 2013)
In the words of Smith et al., "our finding that the most heavily calcified morphotype dominates when conditions are most acidic is contrary to earlier predictions and raises further questions about the fate of coccolithophores in a high-CO2 world"... Read More
Drifting Along with the CMIP3 Models (2 Jan 2013)
Climate drift arises for various reasons, such as "deficiencies in either the model representation of the real world or the procedure used to initialize the model." However, "significant efforts by the climate modeling community have gone into reducing climate drift." Nevertheless, climate drift still persists and is causing modelers significant headaches... Read More
Dying from Heat and Cold in Chiang Mai, Thailand (2 Jan 2013)
Once again, extreme heat is shown to be less deadly than extreme cold... Read More
Nine Decades of Daily Precipitation Over Europe's Central Alps (2 Jan 2013)
How do the data appear to have been impacted by the global warming of the past century or so? Based upon the reported observations, they cast a huge amount of doubt upon climate-alarmist predictions of greater precipitation - including more intense precipitation extremes - occurring in tandem with rising temperatures... Read More
Articles By Craig Idso
Increasing Atmospheric Carbon Dioxide Is Key to Preventing Mass Starvation
Woody Plant Encroachment on the USA's Southwestern Desert
Crops vs. Weeds at the Northern Edges of Their Current Ranges
The Maldives' Corals Seven Years after the 1998 Bleaching Event
A Global Fire History of the Past Century


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I'm absolutely new to Linux. I have been using Windows for all my life, but I have read about Ubuntu (and Linux in general) and I think I'll like it, so I wanted to know how to install Ubuntu on my PC with a Pre-Installed Windows 8 or later on it.
Can I do it with Wubi or through the Live USB/DVD?
What steps do I need to take to correctly install Ubuntu?


text:
I'm looking through this guide for how to add an EBS volume to an Amazon EC2 instance, and I've found this little part of instructions hard to follow:
Create an XFS file system on the EBS volume and mount it as /vol
grep -q xfs /proc/filesystems || sudo modprobe xfs
sudo mkfs.xfs /dev/sdh
echo "/dev/sdh /vol xfs noatime 0 0" | sudo tee -a /etc/fstab
sudo mkdir -m 000 /vol
sudo mount /vol
You now have a 10 GB (or whatever size you specified) EBS volume mounted under /vol with an XFS file system, and it will be automatically mounted if the instance reboots.
I don't believe I have
mkfs.xfs installed, although
mkfs is a valid command. This is a little too much piping and advanced syntax for me - I'm trying to figure out how to make this work on Ubuntu 10.04 and am not having any luck with it.
Can someone tell me what is being attempted here so I can try and understand it and get it working for my Ubuntu EC2 Instance?
A few things I figured out:
- on my instance I had to use
/dev/xvdhand not
- still not sure what
grep -q xfs /proc/filesystems || sudo modprobe xfsis doing as running each of those commands does not show any results.
- afaik the fstab is just to automatically connect the volume at boot


text:
Louisville Metro Corrections says six medical care providers at the jail have resigned after a probe into the deaths of two inmates.
The Courier-Journal reports the internal investigation found that the workers may have contributed to the deaths. All six worked for Tennessee-based Corizon Inc., a contractor that provides medical care at the jail.
Corrections Director Mark Bolton told the newspaper on Wednesday that the police department's death investigations were taking longer than usual and prompted him to take action. After looking at records, Bolton said he concluded that the inmates should have been taken to a doctor sooner.
The company said in a written statement that it is "committed to providing quality heathcare" and is continuously trying to improve.


text:
Quality CareFind out why Mayo Clinic is the right place for your health care. Make an appointment.
Meet the StaffFind a directory of doctors and departments at all Mayo Clinic campuses. Visit now.
Research and Clinical TrialsSee how Mayo Clinic research and clinical trials advance the science of medicine and improve patient care. Explore now.
Visit Our SchoolsEducators at Mayo Clinic train tomorrow's leaders to deliver compassionate, high-value, safe patient care. Choose a degree.
Professional ServicesExplore Mayo Clinic's many resources and see jobs available for medical professionals. Get updates.
Give to Mayo ClinicHelp set a new world standard in care for people everywhere. Give now.
Opened in 2007, the state-of-the-art Dan Abraham Healthy Living Center provides an inclusive wellness experience for Mayo Clinic employees.
Mayo Clinic offers unpaid internships for undergraduate students in exercise science, health and wellness promotion, and related fields. Interns gain experience at the Dan Abraham Healthy Living Center (DAHLC) on the Mayo Clinic campus in Rochester, Minnesota.
The center encompasses more than 115,000 square feet and incorporates state-of-the-art equipment, programs and services. DAHLC serves all Mayo Clinic employees, students, volunteers, retirees, spouses and same-gender domestic partners. Self-motivated and creative students should apply.
All internships must be a minimum of 12 weeks, but may be increased to meet school requirements.
The Health and Wellness Coach Internship at Dan Abraham Healthy Living Center is aimed at providing you with comprehensive hands-on practical and technical experience in the development, implementation, and evaluation of all levels of health and wellness programs and services.
Interns have the opportunity to facilitate lifestyle change through a combination of efforts to enhance awareness, change behavior and create environments that support good health practices using effective wellness coaching and behavioral change strategies.
Specific hands-on experience may be gained in providing comprehensive fitness and wellness evaluations, innovative fitness programming and small group training, one-on-one and small group coaching, and the delivery of comprehensive wellness programs or educational presentations.
Intern responsibilities include:
The Worksite Wellness Coordinator Internship at Dan Abraham Healthy Living Center is aimed at providing you with comprehensive hands-on practical and technical experience in administering population health programs to enhance the culture of health in the worksite. Interns can enhance their professional development and gain hands-on experience in innovative wellness programming for the employees of Mayo Clinic.
The worksite wellness coordinator intern gains experience in consultation and project management in the development and evaluation of all levels of health and wellness programs and services. They help facilitate population lifestyle strategies through a combination of efforts to enhance awareness, change behavior and create environments that support good health practices.
Interns gain experience in the full delivery of population interventions, including assessment, engagement and marketing, targeted interventions, and supportive environmental and policy strategies to enhance and sustain health.
As an intern, you have the opportunity to observe other disciplines at Mayo Clinic, including:
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text:
Reasons for separation from University employment fall into one of the following categories:
An employee who voluntarily resigns from the University is expected to give the University the required advance notice (see below). If an employee does not provide the required notice they will not be paid their accrued / unused vacation time.
An employee must submit a letter of resignation to his or her supervisor. An employee who is transferring from one position to another within the University is also expected to comply with the above guidelines unless an alternative arrangement is agreed upon by both current and prospective supervisors. For more information about the transfer process, see Promotions and Transfers.
An employee who voluntarily resigns from the University will be asked to complete a confidential, online exit questionnaire prior to leaving. The purpose of the questionnaire is to gather feedback on the employee's experience at NYU.
In planning for retirement, an employee should give as much advance notice to his or her supervisor as possible, as it usually takes several months to accommodate and prepare for such a major change.
Supervisors should encourage retiring employees to visit the Retirees section of this Web site and to consult with a Benefits Specialist in Human Resources to learn about benefit options and coverage.
An employee whose conduct, actions, or performance violates or is in conflict with the University's policies may be subject to discipline in accordance with the University's Constructive Discipline Process. The last step in the discipline process is termination.
An employee who is terminated for serious misconduct (examples of serious misconduct include, but are not limited to theft or dishonesty, violence, or refusal to follow a legitimate work directive) will not be eligible for re-employment and may be subject to criminal charges if conduct involves criminal activity.
In the event of a layoff due to lack of work, reduced funding or departmental restructuring, supervisors must obtain approval from Human Resources prior to eliminating a position.
Policies for layoffs for Office and Clerical and Laboratory and Technical employees are described in the Collective Bargaining Agreement between the University and Union of Clerical, Administrative and Technical Staff, Local 3882. Seniority rules are covered in Article 15 and Notice of Layoff in Article 29.
For Service Staff (Local 1, Local 810), refer to the applicable contract for all information about layoff.
Employees are required to turn in all University property to their supervisors, including identification, keys, tools, and electronic equipment prior to their last day of work. The supervisor should ensure that all technology access is disabled in a timely manner. Please review the employee checklist.
Review the checklist and exit tools for more information about the necessary actions to take when an employee leaves.
|Effective Date:
|September 01, 2009
|Issuing Authority:
|Office of Executive Vice President
|Responsible Officer:
|Vice President of Human Resources
|Office Name:
|Human Resources
Administrator and Professional, Office and Clerical (Local 3882), Laboratory and Technical (Local 3882), and Service Staff (Local 1, Local 810, and Non-Union) employees.


text:
You limited your search to:
Serial/Series Title: NACA Technical Reports
Collection: National Advisory Committee for Aeronautics Collection
The 7 by 10 foot wind tunnel of the National Advisory Committee for Aeronautics
Date: 1933
Creator: Harris, Thomas A
Description: This report presents a description of the 7 by 10 foot wind tunnel and associated apparatus of the National Advisory Committee for Aeronautics. Included also are calibration test results and characteristic test data of both static force tests and autorotation tests made in the tunnel.
Contributing Partner: UNT Libraries Government Documents Department
Accelerations in flight
Date: 1925
Creator: Doolittle, J H
Description: This work on accelerometry was done at McCook Field for the purpose of continuing the work done by other investigators and obtaining the accelerations which occur when a high-speed pursuit airplane is subjected to the more common maneuvers. The accelerations obtained in suddenly pulling out of a dive with well-balanced elevators are shown to be within 3 or 4 per cent of the theoretically possible accelerations. The maximum acceleration which a pilot can withstand depends upon the length of time the acceleration is continued. It is shown that he experiences no difficulty under the instantaneous accelerations as high as 7.8 G., but when under accelerations in excess of 4.5 G., continued for several seconds, he quickly loses his faculties.
Contributing Partner: UNT Libraries Government Documents Department
Accelerations in flight
Date: 1921
Creator: Norton, F H & Allen, E T
Description: This report deals with the accelerations obtained in flight on various airplanes at Langley Field for the purpose of obtaining the magnitude of the load factors in flight and to procure information on the behavior of an airplane in various maneuvers. The instrument used in these tests was a recording accelerometer of a new type designed by the technical staff of the National Advisory Committee for Aeronautics. The instrument consists of a flat steel spring supported rigidly at one end so that the free end may be deflected by its own weight from its neutral position by any acceleration acting at right angles to the plane of the spring. This deflection is measured by a very light tilting mirror caused to rotate by the deflection of the spring, which reflected the beam of light onto a moving film. The motion of the spring is damped by a thin aluminum vane which rotates with the spring between the poles of an electric magnet. Records were taken on landings and takeoffs, in loops, spins, spirals, and rolls.
Contributing Partner: UNT Libraries Government Documents Department
Accelerometer design
Date: January 1, 1921
Creator: Norton, F H & Warner, Edward P
Description: In connection with the development of an accelerometer for measuring the loads on airplanes in free flight a study of the theory of such instruments has been made, and the results of this study are summarized in this report. A portion of the analysis deals particularly with the sources of error and with the limitations placed on the location of the instrument in the airplane. The discussion of the dynamics of the accelerometer includes a study of its theoretical motions and of the way in which they are affected by the natural period of vibration and by the damping, together with a report of some experiments on the effect of forced vibrations on the record.
Contributing Partner: UNT Libraries Government Documents Department
Accuracy of airspeed measurements and flight calibration procedures
Date: 1948
Creator: Huston, Wilber B
Description: The sources of error that may enter into the measurement of airspeed by pitot-static methods are reviewed in detail together with methods of flight calibration of airspeed installations. Special attention is given to the problem of accurate measurements of airspeed under conditions of high speed and maneuverability required of military airplanes. (author).
Contributing Partner: UNT Libraries Government Documents Department
The additional-mass effect of plates as determined by experiments
Date: January 1, 1941
Creator: Gracey, William
Description: The apparent increase in the inertia properties of a body moving in a fluid medium has been called the additional-mass effect. This report presents a resume of test procedures and results of experimental determinations of the additional-mass effect of flat plates. In addition to data obtained from various foreign sources and from a NACA investigation in 1933, the results of tests recently conducted by the National Advisory Committee for Aeronautics are included.
Contributing Partner: UNT Libraries Government Documents Department
An aerodynamic analysis of the autogiro rotor with a comparison between calculated and experimental results
Date: January 1, 1935
Creator: Wheatley, John B
Description: This report presents an extension of the autogiro theory of Glauert and Lock in which the influence of a pitch varying with the blade radius is evaluated and methods of approximating the effect of blade tip losses and the influence of reversed velocities on the retreating blades are developed. A comparison of calculated and experimental results showed that most of the rotor characteristics could be calculated with reasonable accuracy, and that the type of induced flow assumed has a secondary effect upon the net rotor forces, although the flapping motion is influenced appreciably. An approximate evaluation of the effect of parasite drag on the rotor blades established the importance of including this factor in the analysis.
Contributing Partner: UNT Libraries Government Documents Department
Aerodynamic and hydrodynamic tests of a family of models of flying hulls derived from a streamline body -- NACA model 84 series
Date: January 1, 1943
Creator: Parkinson, John B; Olson, Roland E; Draley, Eugene C & Luoma, Arvo A
Description: A series of related forms of flying-boat hulls representing various degrees of compromise between aerodynamic and hydrodynamic requirements was tested in Langley Tank No. 1 and in the Langley 8-foot high-speed tunnel. The purpose of the investigation was to provide information regarding the penalties in water performance resulting from further aerodynamic refinement and, as a corollary, to provide information regarding the penalties in range or payload resulting from the retention of certain desirable hydrodynamic characteristics. The information should form a basis for over-all improvements in hull form.
Contributing Partner: UNT Libraries Government Documents Department
Aerodynamic characteristics at high speeds of related full-scale propellers having different blade-section cambers
Date: January 1, 1957
Creator: Maynard, Julian D & Salters, Leland B , Jr
Description: Wind-tunnel tests of a full-scale two-blade NACA 10-(10)(08)-03 (high camber) propeller have been made for a range of blade angles from 20 degrees to 55 degrees at airspeeds up to 500 miles per hour. The results of these tests have been compared with results from previous tests of the NACA 10-(3) (08)-03 (low camber) and NACA 10-(5)(08)-03 (medium camber) propellers to evaluate the effects of blade-section camber on propeller aerodynamic characteristics.
Contributing Partner: UNT Libraries Government Documents Department
Aerodynamic characteristics of a large number of airfoils tested in the variable-density wind tunnel
Date: January 1, 1938
Creator: Pinkerton, Robert M & Greenberg, Harry
Description: The aerodynamic characteristics of a large number of miscellaneous airfoils tested in the variable-density tunnel have been reduced to a comparable form and are published in this report for convenient reference. Plots of the standard characteristics are given in tabular form. Included is a tabulation of important characteristics for the related airfoils reported in NACA report 460. This report, in conjunction with NACA report 610, makes available in comparable and convenient form the aerodynamic data for airfoils tested in the variable-density tunnel since January 1, 1931.
Contributing Partner: UNT Libraries Government Documents Department


text:
After reading a recent post on Church's Thesis, I ran into Turing-Church's Strong Thesis, that may be potentially disproven by advances in Quantum Computing. Does anyone know of a good resource that gets into the potential of quantum computing on complexity theory? And how complexity calculations would be done in that environment?
I am also not well read in complexity theory in general, so I may have made an ill-posed question here.


text:
NuGlow is proud to link our readers to BlogHer's "Own Your Beauty" page. We are firm believers in the fact that everyone is beautiful, and that there is no one standard of beauty. We want to help spread the word that it is the individual beauty of each person's face and mien that define what true beauty is.
Not Hollywood. Not magazines. Not marketing. Not ads.
None of those are about real people, our friends, neighbors, colleagues, sons, daughters, spouses, parents. . . . . all of those real people whose beauty is a combination of their individual faces, smiles, personalities, thoughts, personalities, and glimpses into their wonderful, unique souls.
NuGlow does not claim to change a person's face. NuGlow just promises to make each person's skin healthier, all the way through, and to give each person's already-beautiful face a glow that enhances what was already there: true beauty.


text:
I'm trying to do an
apt-get update or
apt-get install xyz and I'm seeing timeouts like this:
W: Failed to fetch http://eu-west-1.ec2.archive.ubuntu.com/ubuntu/dists/oneiric-updates/Release.gpg
Unable to connect to eu-west-1.ec2.archive.ubuntu.com:http: [IP: 10.224.87.159 80]
Is this a transient issue with Ubuntu, or maybe it's something on my end. The box I'm accessing it from is in EC2-EU.
Perhaps there is a way to force the installer to use the US servers which seem to work?


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gluten-free vegan double chocolate cinnamon cookie recipe
Right, fractured ankles aside, back to the cookies! I decided to add a little cinnamon, but really these could be taken in a dozen different directions. Omit the cinnamon and add a little chopped crystallised ginger for something a little zingier, add a handful of chopped toasted nuts; almonds or hazelnuts would be great. Add a little orange zest for a jaffa flavour or chopped dried fruit for a little texture. They are lovely and light, slightly chewy and with a rich chocolate flavour, further accentuated by the chunks of dark chocolate folded in at the last second. Eat them still warm and the chocolate chunks remain melted, or leave to cool completely and they give a nice little bite. Whatever way you choose to take these, for something that is gluten, dairy and egg-free… I think these are pretty damn wonderful.
gluten-free & dairy-free double chocolate cinnamon cookies
A little note, as always on cornstarch. This is the universal term for what we New Zealanders call cornflour. Confusing I know as in the states cornstarch and cornflour are separate things. But here's how it works; if you are a New Zealand or Australian reader use what we know as cornflour. If you are from anywhere else in the world (as far as I know) use what you know as cornstarch. I use Whittaker's 50% dark chocolate which is dairy-free. I used rice-milk but feel free to use whatever dairy-free milk you like. Almond or soy would be my next choices.
Makes 26.
- 2/3 cup (130g) firmly packed muscovado sugar (or brown sugar)
- 1 cup (100g) fine brown rice flour
- 1/4 cup (25g) gluten-free cornflour (corn starch)
- 1/2 cup (60g) cocoa powder
- 1/2 teaspoon baking soda
- 1 teaspoon ground cinnamon
- 1/4 teaspoon fine sea salt
- 1/4 cup (60ml) rice milk
- 1/3 cup (80ml) neutral vegetable oil (I use rice bran oil)
- 1 teaspoon pure vanilla essence
- 50g dark (dairy-free) chocolate, finely chopped
- 2 teaspoons organic raw sugar
- 1/4 teaspoon ground cinnamon
Preheat oven to 180 C/350 F. Grease and/or line a baking tray with baking paper.
In a small bowl combine the raw sugar and ground cinnamon. Set aside.
Place sugar into a medium bowl, sieve over the rice flour, cornstarch, cocoa, baking soda, cinnamon and salt. Whisk to combine. Make a well in the centre and pour in rice milk, oil and vanilla. Mix to form a firm dough, use your hands if you find it easier, I do. Add the chopped chocolate and mix to evenly distribute. Roll into 2 teaspoon portions, place on the tray leaving a little room for spreading (you will need to bake these in two batches), flatten slightly, sprinkle with cinnamon sugar and bake for 10-12 minutes. Remove from the oven and set aside for 2-3 minutes before transferring to a wire rack to cool completely. Store airtight for up to 3-4 days.
This recipe is linked to:
* Slightly indulgent Tuesday @ simply sugar & gluten-free
* Allergy friendly Friday @ Cybelepascal.com
21 comments:
wow- these look so good! i am bookmarking and making these precious little cookies soon!ReplyDelete
Oh Emma! I will pretend that you made this recipe specifically for my lil whanau (hehe) and thank you from the bottom of my heart.ReplyDelete
They look gorgeous.
I hope Si's ankle heals well and without too much pain
No need to pretend. You and your little family were the main inspiration behind making these cookies! We thankfully have always been fine eating eggs, but I know there are so many families out there like yours that have to avoid them along with gluten and dairy...ReplyDelete
:-) enjoy!
These sound so yumm! I like to swap out butter for oil too, but I'm so happy not to have a butter issue. Butter and ghee is practically lactose free so I'm safe with those, thank goodness!ReplyDelete
Poor ankle :( hope it heals well, I'm sure a big crock of these biscuits will much to improve morale at your house!
Love the contrast of the sugar sprinkled on these biscuits. And I love the idea of adding crystallised ginger, too. Hope Si's ankle heals okay, sounds painful!ReplyDelete
They look fabulous and I like the additional crunch you would get from the sugar on top! :)ReplyDelete
Another great recipe - a batch is in the oven! I didn't want to mess with your recipe, though I imagine a pinch if chili powder would be good in these too, next time! Hey didn't Si spend a bit of time on the couch with damages before leaving for Perth too?!ReplyDelete
I just made these cookies for my man (his birthday 2moro) and also the choccy cake recipe. The cake looks rich and yummy and is still in the oven, the cookies which were good enough to eat at the mixture stage are out and cooling. We have all (5 adults in our home) tried them and pronounced them absolutely yummy, as you said Emma, crunchy on the outside and chewy to soft on the inside. Rich but not too sweet. Actually I think I would chose these over any other 'normal' choccy bikkie recipe.ReplyDelete
Thank so much for your blog and recipes!
Thanks for the well wishes lovely people :-) We've spent the morning at fremantle hospital seeing a specialist and getting a cast finally put on. All looks good, although it does mean 4-6 weeks off work.ReplyDelete
Rach~ So glad you have made them and yes I actually meant to write a little chilli powder would work wonders too, especially with the choc/cinnamon combo. I'd say about 1/4-1/2 teaspoon if you do try it. And YES, Si hurt his other ankle only 6 months ago, a matter of weeks before we moved over here to Perth!! It was his first surf since his last (kite surfing) accident! Talk about bad luck ;-)
Carolkiwi~ You're totally welcome, stoked your enjoying my recipes. I'm totally with you on eating the raw cookie dough! Yum aye :-) Especially knowing there is no raw eggs in the mix.
While I appreciate that margarine helps out a lot of dairy-free people, I'm so glad you used oil in these!! Because they sound amazing and I want to make them.ReplyDelete
Sorry to hear about Si's ankle, not fun at all!
I am sprinting to the kitchen to make these cookies! Perfect back-to-school treat for my boys tomorrow.ReplyDelete
I do hope your husband's ankle is feeling better soon.
They look lovely! I have a gluten-freer and a dairy-freer in my office so will make a morning tea with these cookies using crystallised ginger. Can't wait!ReplyDelete
These look delicious! I would love it if you would come link them at my new link party featuring allergy-friendly lunchbox foods. The party goes live at 6:00am EST Friday (so, Friday night, your time) at http://allergyfreecookery.blogspot.com.ReplyDelete
Lisa @ Allergy Free Vintage Cookery
Gorgeous cookies, Emm. I'm thinking of maybe using coconut oil, and adding some coconut flakes to the top. I'm in love with coconut and chocolate anything right now. Oh, and I hear you on margarine. When I worked at a vegan restaurant it was one of those things I just refused to use. I just don't get putting coloured, flavourless oil on toast. grooooossss.ReplyDelete
Yum! Coconut oil would be perfect. I too LOVE choc/coconut anything :-)ReplyDelete
We are lucky here in Aussie to have pretty good "natural" dairy-free margarine's (with no preservatives, colours etc), which I don't feel so bad about using. But yes, if I can get away with it I'd rather not.
Hi Emma,ReplyDelete
I loved your idea of choco vegan AND gluten free cookies. Yesterday I made a batch of them...they were scrumptious!!! Thanks for your delicious recipe :) I hope Si's ankle is going better now.
Hi Blandine, so glad you made them and yes thanks, Si is not in so much pain now. A few more weeks and the cast will be off :-)ReplyDelete
Made these today and they're fricken delicious :) I used molasses sugar instead of the muscovado so that I could pretend that I was getting some nutrients ;)ReplyDelete
These look amazing. Do you recommend a substitute for the corn starch?ReplyDeleteReplies
Any other starch should work fine in these cookies; tapioca starch, potato starch etc xxDelete
Yum just made these this morning. I used arrowroot as we didn't have any cornflour. They are really good - perfect Easter baking for my vegan son.ReplyDelete


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There are times when it seems like the national media is more than willing to paint a dark picture of our area while ignoring the many positives.
That can be frustrating, but it's important to remember that each of us can be an ambassador for our community, acknowledging there are problems - some very large - while sharing the news about the positive.
A case in point is the Franciscan University of Steubenville. The school has sent thousands of graduates into the world since it was founded in 1946, and the vast majority carry a positive message. That spirit was on display last weekend, when the school held its 24th-annual Alumni Awards Banquet and Ceremony in the Tony and Nina Gentile Gallery in the J.C. Williams Center.
Graduates honored during the evening came from many different parts of the country. The Rev. Joseph Meagher, a 1984 graduate, received the Bishop John King Mussio Award for his service to the Archdiocese of Newark, N.J. Mary Grace (Kniola) Landrum, a 1972 graduate, was honored with the Dr. John J. Carrigg Award for her work with young people in the Houston area. John Henricks, a 1991 graduate who now lives in Alexandria, Va., received the Alumni Citizenship Award for his work with the United States Conference of Catholic Bishops; Dr. Adam Berman, a 1994 graduate who lives in Evans, Ga., was the recipient of the Father Dan Egan Award for his work as an expert cardiologist. Michael Kehoe, a 1968 graduate who now lives in the Columbus suburb of Dublin, received the Professor Edward J. Kelly Award for his work with numerous charitable boards. Nate Pollock, a 1999 graduate who lives in Laurel, Md., received the outstanding young alumni award. And, Steubenville residents Christi (Class of 2009) and Bobby Aborn (Class of 2012) were recognized with the Rose M. DeFede Faithful Franciscan Award for their service to students at the university.
All of the honorees have made a mark in their chosen professions, and help project a positive image of the school and our community.


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In fact as far as I understood the crop factor is the ration between 36mm and the horizontal dimension of the sensor.
I guess I can make the sensor dimension to be visible and possible to be documented, so that the focal length written will not have to be recalculated.
What do you think about this approach ?


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George Vecsey
Archived news articles by George Vecsey of The New York Times.
Treating Sports Photographers as the Artists They Are
An exhibition at the Brooklyn Museum invites visitors to reconsider work that has long been seen as ephemeral.
July 22, 2016, Friday
A Hockey Luminary, Gordie Howe Glowed With Modesty
Glimpses of Howe off the ice proved that he remained true to the code of humility and gratitude despite his status as a superstar.
June 11, 2016, Saturday
MORE ON: Hockey, Ice , Howe, Gordie , Detroit Red Wings
Muhammad Ali Turns Vulnerability Into Strength at '96 Olympics
His body slowed by Parkinson's, Ali made a surprise appearance at the opening ceremony to light the caldron at the Summer Games in Atlanta.
June 11, 2016, Saturday
MORE ON: Ali, Muhammad , Olympic Games (1996) , Boxing
As Butterfly or as a Bee, Muhammad Ali Always Made an Impression
Covering Ali at his height and during his slow decline, a reporter was left with enough memories of the former heavyweight champion to fill a smoky arena.
June 4, 2016, Saturday
MORE ON: Boxing , Ali, Muhammad
Whitey Ford, a Six-Time Champion, Can Add a Title: Greatest Living Yankee
After Yogi Berra's death, Ford, a big-game pitcher who went 236-106 over 16 seasons, is worthy of a distinction that also belonged to Babe Ruth and Joe DiMaggio.
September 25, 2015, Friday
MORE ON: Baseball , Ford, Whitey , DiMaggio, Joe , Berra, Yogi , Gehrig, Lou , Ruth, Babe , New York Yankees
Transcendent Islanders Moments at the Nassau Coliseum
A columnist for The New York Times chooses five of his favorite memories from the Islanders' 43-year tenure at Nassau Coliseum.
April 11, 2015, Saturday
MORE ON: Hockey, Ice , Nassau Coliseum , Nystrom, Bobby (1952- ) , Bossy, Mike , Bourne, Bob (1954- ) , Arbour, Al , New York Islanders
M.L.S. Takes the Next Step, but Its Fans Are One Ahead
Many North American fans are familiar with how soccer is played at a higher level and with stars like Cristiano Ronaldo.
March 26, 2015, Thursday
A New York Icon Who Shone Just Outside the Bright Lights
Martin Brodeur, who retired Thursday after a brief stint with the Blues, earned a spot alongside other New York sports icons despite playing across the Hudson River for the Devils.
January 30, 2015, Friday
MORE ON: Hockey, Ice , Brodeur, Martin , New Jersey Devils , New York City , St Louis Blues , St Louis (Mo)
Staying on the Island, but Moving a World Away
The fadeaway of the suburban Islanders has begun as the N.H.L. team prepares to play its final season in Nassau County before moving to Brooklyn.
October 12, 2014, Sunday
MORE ON: Hockey, Ice , Barclays Center (Brooklyn, NY) , New York Islanders
With Memories Entrenched, Hallowed Site of U.S. Open Plows Forward
At the U.S. Open, where thwacks echo across eras, the grounds are in classic New York dig-we-must mode in preparation for a retractable roof in two years.
August 31, 2014, Sunday
Rss Feeds On George Vecsey
Subscribe to an RSS feed on this topic. What is RSS?


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FIRST LOOK: Get in Bed with Gabriel Aubry for His Sexy New Ad Campaign
Courtesy Iconix
It looks like very little gets in between Gabriel Aubry and his sheets! The sexy model sizzles as the face, or should we say body, of Charisma's newest ad campaign. Following in the footsteps of Sex and the City heartthrob Jason Lewis, Gabriel strips down to pose in the home brand's fall 2010 campaign, shot by famed photographer Tony Duran. And while the sizzling star has nothing but praise for the label's luxe linens, saying in a release that "Charisma products have an understated elegance and luxuriousness to them, which is noticeable just by looking at the detailing of the towels and bedding," we're much more focused on the details of his six-pack! The smoking hot dad to Nahla and ex of Halle Berry, will heat up October issues of home magazines as well as computer screens in an online campaign. If this doesn't get you in the mood for new bedding, we don't know what will! To purchase your own lush linens, visit Bloomingdales.com or check out the entire collection at Charismathome.com—Jessie Goldberg
Courtesy Iconix


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i really surprised 'i downloaded 'Google toolbar for Google chrome ..but it is not working shabbir....what is the fact reason......
It is just same as firefox. I also want to share useful news for businesses that is about powerful in-memory analytics platform that continuously processes new events and passes updated results instantly to users or other downstream services.
alexa toolbar for google chrome is helpful for geting the status of any webste, but in mozilla forefox you have more option to choose toolbar and add ons plugin.
Fire for is best , i nerve use chrome.
I checked it few back to install it but i could not succeed. Seems they have stopped sharing it.
very fast browser
Google toolbar is available i am using this why are you just kidding there lol..
it is good to use the Google tool bar for the Google chrome and has a lot of advantages with it..
it is good to use the Google tool bar for the Google chrome and has a lot of advantages with it..


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I'm really new to Ubuntu, so you have to be really patient with me. So, I installed Ubuntu 12.10 two weeks ago. Everything works, it's kinda slow, but I think that's because of the ancient laptop I use.
Anyways! I tried to install Steam and Team Fortress 2, but when I want to start the game, I get some errors about OpenGL not being properly installed or working. I tried to update the X.org drivers, but it's no use.
I'm on a Radeon X1200 / RS690M.
So, does anybody have a clue?


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Can a user of a patented product make changes to the product for their own use (not reselling product) in their business ? From drilling holes to lighten weight or making their own parts for the product to make it work better. Can the patent holder legally prevent this in USA?
In general, once a product is legitimately sold in the U.S., the patent holder has exhausted any and all patent rights. The purchaser can do anything they like with the object. Exceptions would include situation where ownership doesn't transfer like packaged software. It is licensed with conditions. In oral arguments in a Supreme Court case the justices seemed to agree that if a seller wants to put conditions on a sale of an object they should lease the object, retaining ownership of the item.
A separate question involves the rights of third parties. If Smith buys a cup from Jones and drills three holes in the bottom that would not be of any concern to Jones. However Mr. X may have a patent to cups with three holes. Theoretically, Smith can be infringing Mr. X's apparatus patent. Also, Mr. Y might have a method patent on using a cup as a planter for orchids. So, with no modification at all, Smith might put the cup to a use that is covered by a patent.
depends on whether the patent holder meets the criteria of domestic industry; if the holder meets the criteria, then the modification, change or any kind of alterations on the patented product may cause the patent holder's attention (especially when the salse is big enough)


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Resources for doctors, lawyers, therapists and other professionals.
Information helpful when considering finding a Kink Aware Professional.
Kink Aware Professionals is a service offered by NCSF dedicated to providing the community with referrals to psychotherapeutic, medical, legal and other professionals who are knowledgeable about and sensitive to diverse expressions of sexuality.
Kevin Carlson
NCSF Board Member
The Kink Aware Professionals Directory (KAP) is a free service managed and funded by the National Coalition for Sexual Freedom (NCSF). For questions and further information, please contact the KAP Coordinator. All material on this site is Copyright © 2011 NCSF and cannot be copied unless permission is granted. Links to this site, however, are welcome.
Copyright 2012-2015 - National Coalition for Sexual Freedom - NCSFreedom.org
Joomla! Web Development & Hosting by Polished Geek LLC - PolishedGeek.com


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When I'm at home, is it better to use the laptop plugged into AC power, or with just the battery, for the overall battery life?
It won't make all that much difference. What will shorten battery life is temperature: If it gets hot, it will shorten the battery life. Best thing to do, if you are able, is to remove the battery while you're at home and keep it somewhere cool.
If it's a Li-ion battery, then they don't like to be completely discharged, so make sure you charge them regularly. Wikipedia:
Lithium-ion batteries should not be frequently discharged fully and recharged ("deep-cycled"), but this may be necessary after about every 30th recharge to recalibrate any electronic charge monitor (e.g. a battery meter). This allows the monitoring electronics to more accurately estimate battery charge.[26] This has nothing to do with the memory effect.
More tips can be found here:
Apple has a good page on lithium ion batteries which should apply across the board to other manufacturers, not just Apple. Basically, keep your device (laptop, phone, etc) plugged in whenever possible. When the battery is discharged to around 70-80%, recharging will be another cycle, and batteries only have so many cycles before they need to be replaced.
It is good for the battery to be completely discharged every so often, about once a month.
A lot of people seem to be still giving information about old technologies. for the last few years more or less every device with a (semi) integrated battery will be using li-ion. Devices like hand drills use Ni-MH (usually) as they can provide high current, but they are prone to 'memory effect' this is basically the cells not losing the full capacity and is caused by charging the battery here and there, a bit at a time. These USED to be used for laptops as well, so it would have been better to fully discharge your laptop, then let it fully charge up.
A non-utter crap laptop would then notice that the battery was fully charged, and stop trying to charge it and just run of the mains anyway.
Like I said, Li-ion is the technology that is used today, better in more or less every way except it can't provide high current like other batteries (think car lead acid batteries) but this is not an issue for laptops. A basic Li-ion CELL (cell being the key) is a bit dodgy, if you short them or try to draw too much current they can over heat and explode. if they get too hot, they can explode. if they get discharged too much, they can stop working and you will not be able to charge them.
In your laptop you have a smart battery. It manages the power for you. It stops charging the cells when they are full, and stops giving power when they are too low. Prevents them getting shorted or having too much current drawn from them. The best thing about Li-ion cells though is that you can just top them up here and there, giving them a bit of power every so often, a full charge. They do how ever have a life time of about two or three years (last I checked anyway) and thus eventually lose their max charge (read time you can run of the battery for).
One key thing to consider (depending on where you live) is power cuts, if you computer suddenly lose AC power, it is not healthy. The same for your laptop, if you have removed the battery. The battery works like a UPS (uninterruptable power supply) so you can still use your laptop and turn it off safely.
erm.. hope that helps, bit long winded :P
I'd keep it plugged in. Some laptops have a threshold where the AC doesn't charge the battery at all until it drops below a certain point. I've also read that you extend battery life if you maintain a charge of around 35%.
In my experience running on battery means the screen brightness is reduced, I'm assuming to save power. So I prefer to keep it plugged in to mains power so I get the full brightness of the screen. If the laptop doesn't live as long then so be it, I'd rather not strain my eyes. As to bettery life I run mine down every so often but generally try to keep it near fully charged and connected to mains when I can. Additionally I try to raise the four corners of it by a few cms to improve the air flow and therefore cooling underneath it. However I think most of the heat is being generated by the CPU working hard and not the battery
Also, you should never store the battery completely discharged. This can really reduce its life. If you are storing it for a long period of time you should keep it around 40% and somewhere cool.
I'd keep it plugged in, except if not in use for long periods.
Some Lithium Ion batteries can get bloated if overcharged. The specifics of exactly how to reproduce the problem are unclear to me, but it does happen, as i've had this happen to me in the past. It used to be a common occurrence on some Macbook models. So be careful if you leave your laptop unused for long periods with the battery inside and connected to power. This happens due to release of gases inside the battery package which will make it swell visibly. It will make the bloated battery pop out, since it will no longer fit into the battery compartment, and will make the battery unsafe to use due to the danger of combustion.
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We have a WordPress-based website that provides documentation to our REST API. Since our API is constantly changing, so is the documentation. However, we would like to keep the documentation version controlled so it can be matched against API commits. Is there a way to have WordPress pages get their content from a remote repository (GitHub, for example)? Or is there a way to push content to WordPress from some repository?
You already got something like this built in: Revisions.
You can simply grab them by calling
To show the difference between two revisions simply use
You could use a Git hook and post per XML-RPC to WordPress. A Git hook can be any executable file, even PHP.
Another option – on GitHub – is to use the email hook: Go to


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How can I go about HDRI software for Ubuntu 12.04 Beta2? Your help would be highly. appreciated
Look at Luminance HDR.
And fotoxx (from the comments here) is also an Ubuntu package -- Looks promising, I'll try it too.
There are some great tools for the Photographer to utilize. I can name more than a dozen but lets focus on the main object. Getting the right look for an HDR photo.
You will need Ufraw to process RAW photos
You will need Luminance HDR and the Hugin plug-in to process HDR images
You will need Gimp for the final touches
Let me cover 3 things to be able to develop HDR photos
Setup or Pre-process:
Taking the photos is just the beginning to the end. You will need 3 or more photos of the same object, from the same distance with the same focus but with different exposures.
See this Tutorial for Pre-Process setup and recommendations
HDR Development:
This is where the magic starts to happen. Using 3, 5, 7, 9 or more photos you will have a deviation of exposures and will combined them using the software indicated. The Hugin plugin is used for straightening the edges and layering the images on top of each other.
See this Tutorial for HDR Development using Luminance
Post processing:
I like to use GIMP to manipulate the final image settings. This way the photographer gives the photo its final blessing.
See this Tutorial for Post Processing using GIMP
Macrofusion - maybe not best, but worth to try:
Disclaimer: I am the developer/maintainer of Macrofusion.
For me it depends for what arrangement you need it. For example, for iPhone or for MAC. By the way, for MAC I recommend the next one: https://aurorahdr.com/ You already have a pending invitation to this account which I found very efficient.


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The laws of capital crimes elucidated in Sanhedrin and elsewhere make conviction very unlikely. Makkot 1:10 famously tells us that a court that executes once in seven years is bloodthirsty, R. Eliezer b. Azariah ups this to once in seventy years, and R. Tarfon and R. Akiva say they never would have permitted it at all. My question: how many times did rabbinic courts carry out executions?
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In Tanach I find the following cases (there may be others I've missed):
In the Talmud we have the following cases that I know of. Three of them are in the era of Yehudah ben Tabbai and Shimon ben Shatach (early 1st century BCE).
None of these are really typical cases, though - each of them is mentioned because of some unusual feature. There may have been many other cases where people were executed judicially, which are not recorded because nothing out of the ordinary happened.
Rabbi Yonatan claims (Sanhedrin 71a) to have seen a ben sorer u'moreh and sat on his grave. There are difficulties taking this at face value (this is part of a machloket about whether ben sorer u'moreh ever happened. Also, Rabbi Yonatan was a cohen), but if we do take it at face value, it implies that the sanhedren at one point executed a ben sorer u'moreh.
In the same sugya, Rabbi Yonatan also claims to have seen an idolatrous city, and sat on its ruins.
There were two cases in chumash. The mekallel (at the end of parshat Emor, Vayikra 24), and the mekosheh etzim (Parshat Shelach, Bemidbar 15:32-36).
On Gittin 57a a father and son are put to death for sleeping with a betrothed young woman on yom kippur. The words 'a father and son... Yom kippur' are used again in Bava Metzia 83b
(I asked a question on this site about whether or not this set of words is a saying or a literal statement.)


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The Abramson Cancer Center of the University of Pennsylvania
Last Modified: May 3, 2002
Shroud of the Prophet gold leaf/egg tempera on panel 12 x 12 inches 1995This is a symbolic portrait of my father, who died of esophageal cancer on December 5, 1995. The central image is of my father (not a likeness). The border shows images from a tootsie pop, representing the era of my father's birth, and images that remind me of his life.
Do You Love Me? chine collé/serigraph/monotype 22 x 30 inches 1995Visually layered images that relate (to me) the life and death process and its relationship to love. Very confusing image, but that's what I was after. This is my statement relating, in part, to feelings of dealing with terminal cancer and my father.


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The issue of same-sex marriage has been grabbing national headlines this week as hundreds of couples in Mass. become legally wed.
In an effort to prevent such scenes in Kentucky, lawmakers have sent a proposed constitutional amendment that would ban same sex marriages and civil unions to the ballot for November.
Kentucky's constitution has been amended less than any other state constitution, and WKU political science professor Dr. Scott Lasley says this amendment is an attempt by lawmakers to pass the proverbial buck.
"Clearly a situation where they can put an amendment before the voters and say we gave you a choice. In their mind they came off as the hero saying 'Very democratic process,' but there is a certain element of it that they're passing it off on the voters," Lasley said.
Three-fifths of the members of the House and Senate must vote in favor of a proposed amendment for it to be sent to the ballot, where a simple majority of votes is needed to ratify.
Same-sex marriage supporters and opponents are lining up to argue their case before the public in the next six months. Dr. Lasley says the idea of voters having the final say in referendum votes such as this may be good in principle, but not always in practice.
"Advocates for it argue that it's really an example of good government. But what turns out is you end up seeing a lot of outside money and a lot of outside forces come in and fight it out. And I think you'll see here that a lot of conservative, pro-family groups will be coming in and spending money," Lasley said.
Three other states have similar amendments on their November ballots: Georgia, Utah, and Mississippi.