If you let a person in, make sure to see their ID first.   Is it grammatically correct to use a plural determiner for a singular noun in situations like this when it implies that “person”, “client”, “tenant” etc. can be either he or she?
I often use  to keep my sentences gender neutral. Many of my friends (none of them are native speakers), however, consider this to be grammatically incorrect, and suggest me not to use it in formal English exams.  My questions are:   Is singular they widely accepted in English speaking countries such as America and Britain? Is it formal enough to be used in formal situations, such as a public speech? Is it casual enough to be used in informal situations, such as gossiping among friends?
How to graphically represent a language Where can I find good ConTeXt documentation Convert web page to image Why does the jquery change event not trigger when I set the value of a select using val()? Citrix receiver error 1000119 I am trying to run Citrix receiver on the Xenial version of Ubuntu, but I am getting this error below  ERROR: Cannot connect to &quot;0.0.0.2 - Remote Desktop Connection&quot; Unknown error 1000119. Verify your connection settings and try again.  What should I do? Digitally selectable filter I have asked a  but I did not get an answer, as it was too specific. So I will build on it but make it a bit more broad spectrum.  I would like to make a digitally selectable BPF using transistors to select a component in the filter; resulting in the center frequency being changed.  I have used FilterPro to generate quick second order filters and get a rough filter response.  For all the designs, a Multiple-feedback was selected:  In the first picture, a center frequency at 108KHz with a bandwidth @ -3dB of 103K to 113KHz is given.    For the second, a center frequency at 117.5KHz with a bandwidth @ -3dB of 112.8K to 122.2KHz is given.    The only difference between these two circuits is R3.  If I were to implement a circuit as shown below, would it work and what transistor would be recommended? I have selected the  as the Opamp in the circuit design as that is what was used for the .    For the transistors, I was thinking of using the MOSFETs (2N7002) used in the ST7590 design as well. Are they going to start a new trilogy of Spider-Man once again? I was reading Wikipedia's entry on the 2012 movie  to find out about the next movie in the franchise. It says that there were plans for a third movie but it is cancelled now, and Spider-Man is going to appear in . It also says that Sony hired someone (don't remember the name) to write a new trilogy for the franchise.   What is the point of telling the same story once again? They have repeated it twice already. Is it just for business or to compete with the Marvel Cinematic Universe? When to use icons vs. icons with text vs. just text links? Are there any rules on when to use icons vs. icons with text vs. just text links in a web application?  For example:    vs.   save  vs.  save    Extra question: Is  save -or- save  preferable? Is it possible to interrupt spellcasting? As  suggests, there seems to be a hole in the D&amp;D Basic rules.  Maybe.  The rules for readying an action state:     When the trigger occurs, you can either take your reaction right after the trigger finishes or ignore the trigger.   This seems to imply that it is impossible to interrupt a spell in 5e.  If you set your trigger to be "I attack the Wizard when he casts a spell", then you make the attack after the spell has been cast.  Does this mean that spells can no longer be interrupted in combat like they could be in previous editions? In a file with lots of lines I want to delete lines that starts with HERE IT IS.  How can I do this using only command-line tools? Are hand motions required to use the Force? In almost every canon (that is, visual) source, Force users typically wave a hand to invoke the Force to move or manipulate objects, people and thoughts. I get out-of-universe this is a visual cue that the Force is being used, but in-universe is it strictly necessary?  (The only exception I can think of is when Luke is training on Dagobah and is balancing rocks while standing on one hand with Yoda on his foot. He doesn't appear to be waving his hand to move the rocks.)  Is this addressed anywhere in-universe, even in Legends? How can I restore configuration files? Prove: $|a\sin x+b \cos x|\leq \sqrt{a^2+b^2}$ $$|a\sin x+b \cos x|\leq \sqrt{a^2+b^2}$$   I have tried: $$|a\sin x+b \cos x|\leq |a+b|\leq \sqrt{a^2+b^2}$$  enough to prove: $$|a+b|\leq \sqrt{a^2+b^2}$$  But I can find how to continue from here What's the easiest way to install a missing Perl module? I get this error:  Can't locate Foo.pm in @INC  Is there an easier way to install it than downloading, untarring, making, etc? Astrophotography picture with too much noise. How do I correct this in postprocessing? This is the Milky Way above Kakadu National Park, Australia, and my first try at astrophotography.    Thirty second exposure, f/4.0 at 17mm with ISO 12800 (!!) which in hindsight probably was way too high and resulted in a lot of noise. I also used Picasa to increase contrast, but I probably went a bit overboard there as well.  , I am looking for input on how to better postprocess this picture to reduce noise. Find the number of solutions of $\sin x+2 \sin 2x- \sin 3x=3$ What is the difference between an "API," a "framework," an "IDE," and an "engine?" I am just starting out trying to learn to develop games. At first I thought C++ and OpenGL were the tools a beginner would start out to make a game, but quickly found out the OpenGL was just a API for graphics. Then I thought C++ and SFML were what I needed to learn to make a game, but found out the SFML was a media framework that could be used to make games but wasn't a game engine.  I don't want to use a software that does all the work for me, I want to code my own game, the way a game programmer would. I don't understand the difference between a IDE, framework, API, and a engine; What separates them from each other? Do some game programmers use the SFML framework, while other programmers use a game engine? Separate labels in cases As much as I have tried, it doesn't seem possible to use separate labels when using a casesconstruction (from the amsmath package).  Ideally, I would like to be able to write something like  \documentclass{article} \usepackage{amsmath} \begin{document} \begin{equation} f(x)=\begin{cases}   1&amp;x\geq0\label{positive}\\   0&amp;x&lt;0\label{negative} \end{cases} \end{equation} \end{document}   and later refer to both cases at different places. What would be the best way to achieve this result? How do I make a Theme from scratch for Unity? I'd like to make a theme from scratch for Unity.  What knowledge and information/skills are needed? Are there any tools or templates out there for something like this already? I don't have any Python experience so tools biased towards beginners are preferable. Transit Visas for South Africa Undesirable-Overstay Tourists I received an undesirable status for overstaying a SA visa while hospitalized for injuries sustained in Lesotho. I had to cross into SA from Lesotho. Now I am banned entry into SA until Feb 2016 and though I have submitted a waiver request to remove the undesirable status, I hear from some the waiver request may take 4-5 months or even take longer than the time of banishment.  I have a pre-paid safari planned in October in which I need to fly through Johannesburg to get to Botswana. The Jburg border control requires tourists to pass through SA immigration even when simply changing planes.  1) Will SA grant me "transit" access if I don't leave the airport?  2) Will SA allow me to spend a night in the airport as the layover is 12 hours>  Thanks for passing on any info.