I have read several threads regarding type D visas but that doesn't seem to answer my seemingly specific question.  I am working in the Philippines for an international company and I have been granted a 1 year, multiple entry German Type D Visa with working permit valid until Feb 10, 2019 to perform work with one of our clients.   I have already been in Germany, finished my assignment for the time being and now I am back to the Philippines. Therefore I used the visa it was intended for the first time.  Currently I've been invited by my close friends to visit them (social visit) in Norway from Dec 15, 2018 to Feb 1, 2019. It means that I'm planning to travel to Norway while my German Type D Visa is still valid. I am willing to apply for a Norwegian Short Stay Visa however it might be all for naught as I still have a valid Type D visa.   I would like to know your inputs if it's possible to travel to Norway (Schengen area) with probable point of entry via Amsterdam. using a valid, multiple entry German Type D visa without applying for a Norwegian Short Stay Visa? if so, what kind of critical supplemental documents I might need?  I'm quite afraid that I might miss some technicalities and might cause some issues in the border control.  Additional to that, is the 90/180 still counts at this point? previous threads mentioned this quite a lot but I read      Article 6   Entry conditions for third-country nationals         For intended stays on the territory of the Member States of a duration of no more than 90 days in any 180-day   period, which entails considering the 180-day period preceding each day of stay, the entry conditions for third-country   nationals shall be the following:   (a) they are in possession of a valid travel document entitling the holder to cross the border satisfying the following   criteria:   (i) its validity shall extend at least three months after the intended date of departure from the territory of the Member   States. In a justified case of emergency, this obligation may be waived;   (ii) it shall have been issued within the previous 10 years;   (b) they are in possession of a valid visa, if required pursuant to Council Regulation (EC) No 539/2001 (1), except where   they hold a valid residence permit or a valid long-stay visa;   For the purposes of implementing paragraph 1, the date of entry shall be considered as the first day of stay on the   territory of the Member States and the date of exit shall be considered as the last day of stay on the territory of the   Member States. Periods of stay authorised under a residence permit or a long-stay visa shall not be taken into account in   the calculation of the duration of stay on the territory of the Member States.      Help or inputs regarding this matter are appreciated. Also I attached my visa details for referrence
I am a non-EU national, permanent UK Resident. Recently, my work issued me with a multiple Schengen visa with Norway as the first (main) point of entry. Now I want to go on holidays to Greece - do I need to apply to Schengen visa again, as Greece is not Norway and I am not going there for work?
I have a simple question answer to which would help me more deeply understand the concept of (non)commutative structures. Let's take for example (our teacher's definition of) a ring:  Let $R\neq \emptyset$ be a set, let $\oplus:A\times A \to A$ and $\bullet :A\times A \to A$ be binary operations. Moreover, let $(R, \oplus)$ be a commutative group, $(R, \bullet)$ be a monoid and following property holds for all $a, b, c\in R$: $$a\bullet(b\oplus c) = (a\bullet b)\oplus(a \bullet c)$$ $$(b\oplus c)\bullet a = (b\bullet a)\oplus(c \bullet a)$$ Then ordered triple $\mathbf R = (R, \oplus, \bullet \mathbf)$ is called a (unitary) ring.  Moreover, we call ring $\mathbf R$ commutative iff $(R, \bullet)$ is a commutative monoid. Commutativity of a ring is always a matter of its multiplicative operation because the additive operation is always assumed to be commutative.  Could anyone explain me the bold part? Why do we even in non-commutative rings (and fields etc.) assume the addition to be always commutative? Is there some serious reason? Would it make any trouble? Or studying of structures with non-commutative addition just doesn't give us anything new so we can take addition as commutative simply because of our comfort? Correct tracked camera orientation I have been playing around with camera tracking and I'm happy enough with the tracking and alignment of the markers with the footage when viewed through the camera.    The problem is, when I am not looking through the camera I can see that the grid isn't aligned to the camera.    How do you correctly align the grid to this tracked camera? I have set a floor and two points for scale, also clicked setup tracking scene, but this just added cube and plane which were on the grid. Energy conservation in General Relativity I'm getting a PC with Windows and I want to dual boot using Ubuntu as my primary OS.  I want to create a Home partition to store all my files and hopefully be able to access them on Windows 7 without having to manually mount the partition or anything.  I want to know what kind of partition should I create and if I can share my Home partition to simplify matters.  Thanks Is there a way to disable the hotkeys? I navigate with Ctrl-n,p,f,b (readline/ keys), so that I don't have to move my hands too much and get  again. Is there a way to disable Ctrl-b being hotkey for bold?  Note that this is not just an Emacs thing. Standard web browsers, like Firefox and Chrome, use things like  Ctrl + K and Ctrl + L to navigate to the Google search bar and address bar respectively. I've got a generic dictionary Dictionary&lt;string, T&gt; that I would like to essentially make a Clone() of ..any suggestions. Exercise on local and global symmetry for a given Lagrangian density I have a shapefile with contours and their heights.   Is it possible to make a DEM from contours in QGIS without using GRASS?   I found  but the answer is for ArcGIS Desktop. Display bare HTML from hook_menu() What would be the cleanest way to route URLs to functions and return only the HTML output from those functions (a.k.a. the menu callback)?  If I use hook_menu() the string that's returned will be the HTML within the rest of the site. I want the page to display only the string returned from the menu callback.  Should I use drupal_set_header() in the same way drupal_json() does? Is this not inefficient having fully bootstrapped Drupal, and then changing the header at the last minute?  I want the fastest code path possible since this is going to be for widgets on external sites.  I could start with a standalone .php file and bootstrap what I need but the hook_menu routing is nice.    How should you do this? What are matter waves made of and what is their speed? Short story identification: society partitioned off by high wall Customize newform save button - Save and redirect to another form What is the best way to add redirect function into the save button on a newform in SharePoint 2013.  When the user create a list item, he/she should be redirected to another form. Is it possible to get and parse the new generated item ID?  Start - Newform URL:   End - Editform URL:   Thanks Native Youtube app suddenly stopped working on iPad 1 It's been some weeks now, whenever I try to used my Youtube app, it tells me it's impossible to connect to Youtube. Since it's an iPad 1, I have had trouble finding information online.  Did Google or Apple stop supporting the app? Is it finally obsolete? Is there another app I could use that works on iOS 5?  Just to be clear, I did not tinker with my device. I did not change its parameters, I did not jailbreak it, it connects to the Internet just fine and I've tried the app on different Internet connections. Also, this is not a login problem, the app just refuses to let me browse videos, whether I'm logged in or not.  Thanks for your help. How to reduce the thickness of letters Suppose $\lim \limits_{n \to ∞} a_n=L$. Prove that $\lim\limits_{n \to ∞} \frac{a_1+a_2+\cdots+a_n}{n}=L$ Flying with a desktop computer (as checked luggage) On an upcoming trip, I will be taking a desktop computer and monitor as checked luggage (on a United/Continental flight). What should I be aware of when doing this? What needs to be done to properly protect all the components? Are there any airline policies I should be aware of? Interpolating functions returned by NDSolve do not plot Normalizing point cloud data How I can get Digital Height Model (only object heights, DSM - DTM = DHM)?  Many applications can do this, but they convert it to GRID or TIN format. I was wondering if it was possible to keep the data as point clouds. Why does Type I error always occur in a NHST? Or, is NHST too weak to tell the truth? Recently I have noticed that Type I error of a test is too much persistent. Even if all the values are almost equal (variance is extremely low) and tested to that value (true mean), still there is nearly 5% Type I error of the test. I am frightened and curious to rethink, are the people who have banned (or skeptic about) NHST (null hypothesis significance testing) truly correct? Let's have a look at the following r code:       n=10000 t1err=0 set.seed(1235) for (i in 1:n){    x=rnorm(100, 10, 20)    if (((t.test(x, mu=10))$p.value)&lt;=0.05) (t1err=t1err+1)  } cat("Type I error rate in percentage is", (t1err/n)*100,"%")   It will produce roughly 5% as Type I error. Seems ok. But let's see this:      n=10000   t1err=0   set.seed(1235)   for (i in 1:n){      x=rnorm(100, 10, 0.000001)      if (((t.test(x, mu=10))$p.value)&lt;=0.05) (t1err=t1err+1)    }   cat("Type I error rate in percentage is", (t1err/n)*100,"%")   Each values are extremely close to 10. Still it produces about 5% Type I error. What conclusion we may draw from it? Or, am I missing something? Supersymmetry in Quantum Field Theory I have an idea of supersymmetry in quantum mechanics, can you suggest a book on "supersymmetry in quantum field theory", which has sufficient mathematical rigour like "Peskin and Schroeder"