If you walked along a surface with this kind of tiling, you would be able to easily predict what comes next. Single molecular units can act as tiles and combine to build complex three-dimensional molecular tessellations properties of these tessellations such as their geometric symmetry can help scientists understand self-organised systems in biology and nanotechnology – especially as more and more complex tessellations are found.Īs of yet, all the tessellations we have looked at have been periodic that is, a tiling that has a repeating pattern within itself. Evolutionarily, this provides an advantage to the bees as less beeswax is needed overall for the same area of construction.Īt a molecular level, tessellation can also be found, especially within crystal structures. It’s more difficult to see this with squares in comparison to hexagons, however again if you construct a square with the same perimeter, the hexagon again has a greater total area as it is rounder in shape. However, you can clearly see that the hexagonal shape provides a larger area, fitting six triangles as opposed to four. The perimeter of both of the shapes is exactly the same – each is made up of six edges of the small triangles and is therefore six units in length. Take the side length of each small triangle above to be one unit. This can be easily demonstrated for hexagons and triangles. In 1999, the mathematician Thomas Hales proved the ‘honeycomb conjecture’, which demonstrated that the hexagon provided the least total perimeter out of these three options. However, this still leaves the three options for the shape – a square, triangle, or hexagonal cell. This is because each cell is exactly the same. Honeycomb has such a regular tessellation to allow for the most efficient construction, allowing multiple bees to build different cells at one time. Within nature, tessellations tend to be regular or semi-regular. Other common types of pattern are semi-regular tessellations, which allow more than one type of regular polygon as tiles, or monohedral tessellations, which only use congruent tiles. This is because these are the only regular polygons with internal angles that are a factor of 360 degrees. From the fact that angles around a point must sum to 360 degrees, it is easy to infer mathematically that there are only three types of regular polygons which can make up these tessellations – equilateral triangles, squares, and regular hexagons. These are monohedral tilings (where every single tile is congruent) of regular polygons (all having equal sides and angles). The simplest types of tessellation are referred to as regular tessellations. As an art form, tessellation is particularly rich in mathematics, with ties to geometry, topology and group theory. They have even made their name in popular culture, from tiling puzzles and the tangram to the video game Tetris, where the aim is to create tessellations as best you can from a set of falling tetrominoes.Ī tessellation is defined a repeating pattern made of one or more shapes, without the formation of gaps or overlaps. Tessellations can be found everywhere: in the periodic arrangement of hexagons in honeycomb, stained-glass windows and mosaic tilings, and the striking artwork of M.C. From my favourite book as a child Penrose the Mathematical Cat to the video series Doodling in Math Class by Vihart in teenage years, the beauty in this form of mathematics has always fascinated me. For me, this beauty is found in tessellation. But it is much more than this – ask a mathematician which part of maths they find the most intrinsically beautiful and you’ll receive a wide variety of answers, each very individual to the person. At first, it can just seem like they’re referring to the perfection of a nice proof when it comes to its conclusion. You will often hear mathematicians say that maths is beautiful. However, many don’t realise that this beauty is in fact mathematics. Have you ever noticed patterns in the brickwork of the pavement as you’re walking into town? Or in the wallpaper at your grandparents’ house? Or in the quilt on your bed? Most people have at some point in their lives noticed the beauty of the patterns in the world around them. “Triangles are my favourite shape, three points where two lines meet … let’s tessellate” Harriet Wood – student winner of the 2020 Teddy Rocks Maths Essay Competition Notes on honeycomb and M.C.
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I am able to use JupyterLab prebuilt extensions normally.
The user is responsible for performing any procedures required to lift additional restrictions.Īll data files arrive in compressed ZIP format from ICPSR and you will need to decompress the files prior to using them. If you have existing DDI metadata in XML format and you want to display it as a readable codebook in PDF or HTML format, you can use existing DDI style sheets to do so.ĭDI-Lifecycle Version 3.1 Converter (using XSLT Stylesheets)Ĭonvert DD 3.1 XML to MARC-XML, DDI-Codebook XML, DataCite 2.Note that some data sets have additional restrictions on use and access. Sledgehammer can export various formats to DDI-Codebook and DDI-Lifecycle XML StatTransfer can export various formats to DDI-Lifecycle Version 3.1 XML Video Guides (see ‘Publish Documentation’).Video Guides (for, produced by Carleton University)Ĭolectica can produce PDF Codebooks and DDI-Lifecycle Version 3.2 XML.Nesstar Publisher can produce PDF Codebooks and DDI-Codebook Version 1.2 XML For more information about using DDI from scratch, please review the guidance DDI for Developers. Anyone can create and use the DDI standard and XML schemas to develop new tools. Of course, these tools may not be relevant for all use cases. Note: This is not meant to be a comprehensive list of tools available for DDI instead this represents a list of enterprise-ready software that is used by a variety of institutions and organizations that manage and produce data for reuse. Note that these tools provide only the metadata carried in the statistical packages and not the actual data. Tip: If you have data in SPSS, SAS, or Stata format and want to produce DDI from those packages, there are tools to help you. There are a number of tools that can create DDI for the creation of a structured codebook. A DDI codebook provides metadata about a dataset and enables application tools to read the data appropriately for display and to do further statistical analysis. Scenario: “I have a complete dataset and I would like to create a codebook”Ī codebook is an accompanying document to assist in interpreting the data for replication and reuse purposes by an end-user. Once you establish a workflow for codebook creation, you can easily attach codebooks to your published datasets in any data repository. These files were generated using the DDI-Codebook standard, and were marked up using Nesstar Publisher.Īdditional codebook examples using ICPSR data are also available for review. This is the same codebook in machine-actionable DDI format (XML format). Here is an example of a readable codebook in PDF format. Tip: Don’t worry if you don’t currently have any DDI or structured metadata to work with, as there are a number of tools that you can use to extract file- and variable-level metadata (such as the variable names, labels, categories, values, frequency counts, etc.) found in your completed dataset. (See the DDI Glossary for more information about study-level and variable-level metadata.) Information can sometimes be provided by a researcher in a readme file (e.g., a text file), or be embedded in a datafile package (e.g., SPSS allows for column names / labels / missing values / notes), and so on. To create a codebook, information about the study, files, and variables must be known. A codebook provides authoritative (straight-from-the-research) and citable information, as well as instructions on how to read, analyze, interpret, and verify data for accuracy and replication purposes. Why a Codebook?Ĭreating a readable codebook to accompany your dataset can go a long way in making your data well understood and reusable well into the future. When captured using the DDI metadata standard, information in a codebook is structured, machine-actionable, and usable by computer software and databases. The codebook may include a dataset’s record layout, list of variable names and labels, concepts, categories, cases, missing value codes, frequency counts, notes, universe statements, and so on. A codebook is an essential document that informs the data user about the study, data file(s), variables, categories, etc., that make up a complete dataset. RAM 2 GB or more of RAM (8 GB recommended) Operating system: Microsoft Windows 10 (64 bit) versions 1703 (Creators Update) and later Processor: Intel® Core 2 or AMD Athlon® 64 processor 2 GHz or faster processor Drag and drop images to fill the frames and they’ll scale to fit. Paint in perfect symmetry with a new mode that lets you define your axes and choose from preset patterns like circular, radial, spiral, and mandala.Ī dedicated workspace lets you select the exact pixels to use for fills, and Adobe Sensei makes it easy to rotate, scale, and mirror them.Ĭreate shape or text frames to use as placeholders on your canvas. And create with pencils, pens, markers, and brushes that feel real - including more than 1,000 from celebrated illustrator Kyle T. Get polished looks with stroke smoothing. Play with color, effects, and more to turn the ordinary into something extraordinary.ĭraw and paint whatever you dream up with tools designed especially for illustrators. Adjust, crop, remove objects, retouch, and repair old photos. Whether you’re looking for everyday edits or total transformations, our graphic design software offers a complete set of professional photography tools to turn your snapshots into works of art. With intuitive tools and easy-to-use templates, even beginners can make something amazing. Millions of designers, photographers, and artists around the world use Photoshop to make the impossible possible.įrom posters to packaging, basic banners to beautiful websites, unforgettable logos to eye-catching icons, Photoshop keeps the creative world moving. From posters to packaging, basic banners to beautiful websites, unforgettable logos to eye-catching icons, Photoshop keeps the creative world moving. Millions of designers, photographers, and artists around the world use Photoshop to make the impossible possible. I tried to move us forward in the discussion without ruffling feathers too much. I simply asked for current data and for people with experience to join in. Mod note - you love to beat on that company but get a life - they may well deserve it but state proven facts only.īill BlakeWow. You can leave me out and tell everybody (who will listen) how Edison and his teams didn't really know about the Edison batteries -īut you do. Sounds like you don't need any more info from me, Mr. Who else out there has personal experience? I can read all the references I want about hunting, but to actually be a hunter I need to step into the woods with my weapon - AND - to be most efficient and effective, it would be nice to get some knowledge from one of the locals who have hunted the same woods before. You are right in that it takes a long time to build this bank of information. How long is that "very long period" that Edison referenced? Was it affected by physical use conditions? How hard were the batteries being pushed? What was the rate of decay vs charge / discharge characteristics employed? Is the rate of decay linear? How is it affected by amp draw? (FYI - My amp-hour ratings all all over the map depending on my draw rates.) Is iron poisioning worse when the cells sit charged or when they are being cycled daily? How is capactity loss affected with % discharge in the cycling. If we want to evaluate how bad (or not bad) this technology is for the purpose we desire to use it in, we need people with personal "hands-on" experiences with these cells (or at least this technology) so as to share and compare data with. No need for us to keep singing the same song over and over. We know the technology has issues with the electrolyte - so do LA batteries (even more so). They are references of information, but what is missing (as in most old patents) is the data that backs them up (and details with regards to how the data was gathered). To me that is not the kind of data I seek. Someday, when time permits, before saying too much and risk playing the fool on the world wide web. Edison ever did and I want to dissect them all Somebody was asleep at da switch on dis one. It's just words, as you say, based on many, many experiments over many years. Edison himself.Īll under the threat of prison if it's not on the up and up. There is an overwhelming amount of data for you that confirms every word ever spoken on this matter byĬonfirmed data signed by 2 witnesses and Mr. Since you found that 1908 Patent just go forward 16 years to the 1924 Battery Patents and behold all that His Excellency I have learned not to accept just words so as to avoid the partial truths trap.Certainly Robert. When i read patents I evaluate the data and compare it to their conclusions. I have worked in chemical research for 35+ years and I live by facts and data. In-text citation capitalization, quotes, and italics/underlining Regardless of how they are referenced, all sources that are cited in the text must appear in the reference list at the end of the paper. For example, you might write (Jones, 1998, p. Use the abbreviation “p.” (for one page) or “pp.” (for multiple pages) before listing the page number(s). On the other hand, if you are directly quoting or borrowing from another work, you should include the page number at the end of the parenthetical citation. If you are referring to an idea from another work but NOT directly quoting the material, or making reference to an entire book, article or other work, you only have to make reference to the author and year of publication and not the page number in your in-text reference. One complete reference for each source should appear in the reference list at the end of the paper. This means that the author's last name and the year of publication for the source should appear in the text, like, for example, (Jones, 1998). When using APA format, follow the author-date method of in-text citation. Contexts other than traditionally-structured research writing may permit the simple present tense (for example, Jones (1998) finds). Note: On pages 117-118, the Publication Manual suggests that authors of research papers should use the past tense or present perfect tense for signal phrases that occur in the literature review and procedure descriptions (for example, Jones (1998) found or Jones (1998) has found.). What follows are some general guidelines for referring to the works of others in your essay. Reference citations in text are covered on pages 261-268 of the Publication Manual. The equivalent resource for the older APA 6 style can be found here. Note: This page reflects the latest version of the APA Publication Manual (i.e., APA 7), which released in October 2019. Use of this site constitutes acceptance of our terms and conditions of fair use. This material may not be published, reproduced, broadcast, rewritten, or redistributed without permission.
Good tool if you make a lot of videos for sharing later on YouTube and other platforms, since it allows Full HD recordings. One great feature is that you can add background music to the video and even add intro and outro clips to make them more personal. Sharing has to be done externally with another utility, which is one of the obvious downsides. No rooting is required, but you can only save the recordings on the device or microSD card. This screen recorder offers free watermark removal and 2k resolution screen recordings. Great for Samsung’s premium devices like the Galaxy S10. Tips: Delete Recorded video by accident? Here is how to recover it Mobizen Screen Recorder: Best for Samsung Galaxy S10/S9/S8 For a free app, this comes highly recommended, and there’s no need to root your Android device when installing it. To stop recording, all you need to do is shake your phone, and the recording is turned off. It’s also great for explainer and tutorial type videos because it captures screen touches and click operations. If you want to make a video that also showcases yourself to your online social fans, this is the screen recording app for you. One of the cool features is the Facecam Recorder, which uses your selfie camera to record you within the screen recording. It’s also free, offering Full HD capabilities – 1080p, 12Mbps, 60FPS. There are no caps on how long your videos can be, and the best part is that no watermark is applied to the videos. It’s totally free, and it’ll already be in your phone as a native app so you won’t even have to download it.įurther reading: how to transfer recorded videos to computer Super Screen Recorder: Record Video with Internal AudioĪnother great Android screen recorder is the Super Screen Recorder. You can then record anything shown on your device and easily share it with others in a number of ways. The downside is that you can only record 480p or 720p resolution videos, but that’s enough for most users who don’t want to be saddled with high data charges.Īll you need to do is go into the app and activate the recorder, and then exit when you see the recording interface. Originally intended to manage your gaming profile online, Play Games also has a screen recorder function that you can use for other purposes. Yup, we bet you didn’t know that Google Play Games was great for recording on-screen activity. Google Play Games: Build-in Screen Recorder for Android This list follows no particular order of preference. Keeping that in mind, we’ve picked the best 4 Android screen recorder apps that you can try on your device. When choosing a screen recorder for your Android device, there are several things to consider, such as recording quality, the ability to share or stream, ability to configure your recordings and more. There are literally dozens of screen recorder apps for Android, but not all of them are created equal.
First, ensure that you have genuine Windows 7/8/8.1, as this update is only available on these versions of open Windows.ģ. Wifi Direct Printing: Supported wifi Router to access servicesġ) Upgrading from Old Windows to Windows 10Īs mentioned earlier, Windows 10 is a free upgrade if you are running Windows 7 or Windows 8.BitLocker: Windows 10 Pro or Enterprise, Trusted Platform Module (TPM) 1.2, TPM 2.0, or a USB flash drive.Device encryption: InstantGo and TPM 2.0.Media streaming: Xbox Music and Xbox Video streaming capabilities are available only in certain regions.Windows Hello Face Recognition: an Infrared camera for facial recognition, iris detection, or a fingerprint reader that supports the Windows Biometric Framework.Cortana support: Only supported in the United States, United Kingdom, China, France, Italy, Germany, and Spain.Microsoft account: Required for some features.Touch: For multi-touch support tablets or Windows devices.Graphics: DirectX 9 or later with WDDM 1.0 driver.Physical Memory (Hard Disk Space): 16 GB for 32-bit or 20 GB for 64-bit.RAM: At least 1 GB for 32-bit or 2 GB for 64-bit.64-bit Windows 10 require a processor that supports CMPXCHG16b, PrefetchW, and LAHF/SAHF capabilities. Processor: 1 GHz, faster processor, or SoC (System on a chip).OS To upgrade: You will need Service Pack 1 (SP1) Of Windows 7 or 8.1( Windows installed must be genuine otherwise, no update will avail you).Compatibility: Architecture: 32Bit(x86)/64 Bit(圆4).Type of Setup: Offline Installer/Full Standalone Setup:.Name of the software: Windows 10 Technical overview available in 32-bit and 64-bit versions with English mainstream language.A Microsoft account is required for some features. For all Windows 11 editions, internet access is required to perform updates and to download and take advantage of some features. Switching a device out of Windows 11 Home in S mode also requires internet connectivity. Windows 11 Home edition requires internet connectivity and a Microsoft account. Internet connection and Microsoft account: Graphics card: Compatible with DirectX 12 or later with WDDM 2.0 driver.ĭisplay: High definition (720p) display that is greater than 9" diagonally, 8 bits per color channel. Check here for instructions on how your PC might be enabled to meet this requirement. TPM: Trusted Platform Module (TPM) version 2.0. Check here for information on how your PC might be able to meet this requirement. System firmware: UEFI, Secure Boot capable. Storage: 64 GB or larger storage device Note: See below under "More information on storage space to keep Windows 11 up-to-date" for more details. Processor: 1 gigahertz (GHz) or faster with 2 or more cores on a compatible 64-bit processor or System on a Chip (SoC). To acquire Windows software with support provided by Microsoft please see our full package "Retail" product offerings. This OEM System Builder Channel software requires the assembler to provide end user support for the Windows software and cannot be transferred to another computer once it is installed. This software is intended for pre-installation on a new personal computer for resale. Use of this OEM System Builder Channel software is subject to the terms of the Microsoft OEM System Builder License. Learn more about the Windows 11 Home Best Seller Ranking The Quadcast S is so convenient, so stylish, and sounds so good that it's hard to imagine ways that it could be better without fundamentally changing who it's designed for. But it would be nice to see more tools for controlling audio than it has for lighting. Curiously, it displays which polar patterns are available, but since this is set with a hardware switch, you can't change it in the app.Īgain, it's not a major concern, since whatever app you're using to stream or record probably already has most of these features. There's no way to add a high- or low-pass filter, no vocal effects, and the aforementioned lack of a level meter in the app. My one gripe is that the Ngenuity software, while great for customizing the RGB lighting, is pretty useless for almost anything else. It doesn't have much professional flexibility, but if you want a set-it-and-forget-it microphone that sounds great out of the box, this is the one to go with. The signal processing on the Quadcast S manages to bring out rich, deeper tones, without crushing higher vocal frequencies too much. Of course, it wouldn't be this popular if it didn't have the audio quality to match. The mic also connects via USB-C, a welcome upgrade over the mini USB of the previous Quadcast mic (as well as some competing mics, including the Blue Yeti). These are fairly standard, and you probably won't ever need to change the pattern if you use a consistent setup and only record yourself, but it's still nice to have the flexibility. On the rear of the microphone, there's a dial to switch between four polar patterns: stereo, omnidirectional, cardioid, and bidirectional. Or at least blink red when I start peaking! Whatever, it's fine. Just turn the whole mic into a level meter while the gain knob is in use. This isn't a huge problem, since apps like OBS usually have them already, but come on HyperX: The LEDs are right there. The only minor quibble I have with this is that there's no input level indicator on the microphone itself, or in HyperX's software, to help position the gain. This made it easy to adjust the input level on the fly. On the (literal) flip side, there's a gain knob built into the bottom of the microphone. Muting the microphone also disables the colorful LEDs, so you get instant feedback that it's safe to talk. This is easily one of the handiest features, especially if you need to quickly cut your audio while on a livestream. But if I'd had this HyperX mic first, I might've been.įor starters, on the top of the microphone, there's a touch-sensitive pad that can mute the microphone. It's not that I was ever dissatisfied with my old Blue Yeti, necessarily. I had only used the Quadcast S for an hour or two before I had the distinct thought that whoever designed it must have spent a lot of time with other USB mics. But the government shut it down the day after the station began broadcasting. Winston and Samuel Derrick, editor and publisher, respectively, of The Daily Observer, intended to crack that monopoly in 1996 when they created the independent station Observer Radio. According to reporting from the Committee to Project Journalists, the radio station faced repeated threats and sabotage from the Antiguan government led by Lester Bird at the time: Before its emergence, the government-owned Antigua Broadcasting Station (ABS) and Bird family owned ZDK (pronounced zed-ee-kay) were the only radio stations on the island. In 1996, the empire expanded to Observer Radio which, at the time, was the first independent radio station in Antigua and Barbuda. In 1993, Derrick founded the Observer Media Group with his brother, Fergie Derrick, starting with a daily newspaper. Derrick was the host of the popular "The Voice of the People" daily call-in news show on the media group's radio station Observer Radio 911 FM. Physical address: NewsCo limited, 4th-floor ABI Financial Building, #156Redcliff street, St.Winston Derrick (1951 – February 2, 2013) was an Antiguan journalist, media personality, and chairman and managing director of Antigua's Observer Group of Companies which he founded in 1993 with his brother Fergie Derrick. “ Voice Of The People” is the number one program of the 91.1 FM in which it provides a huge platform to its audience to share their views about various things. “ The Buzz” is a program which radio airs to entertain people and plays different songs on the choice of their audience. “Tasty Talk” In which the DJs call upon Men and women for a live discussion with each other. The program “Sunny Saturday” which airs on every Saturday morning, the show includes hit songs and funny conversations. It broadcasts every Monday at night “ Sports Talk.” “Saturday Snake Pit” on every Saturday which has top songs and discusses about various things. “Our House” is a show which is especially for young people in which FM 91.1 plays hit music. The program “Observer AM” which is a very famous one, radio airs it early in the morning and call upon different. “Mo Jazz” which has jazz music, Fast songs, and electronic music which young people throughout the world love to listen. The program “Have your say” which radio broadcasts every Monday. The program “The Coffee Break,” which it airs in the middle of the morning and plays amazing songs for young people. Every evening at 5:30, the radio airs a program name as “ Big Stories” in which it tells about the top trending stories. It organizes a lot of programs like “Big Issues,” in which it reveals the big scandals and problems of the whole week. Unlike other radios, it has two slogans “Let There Be Light” and “The Voice Of People.” Which shows its excellent reputation and sense of responsibility for its work. No matter wherever you are, it provides live streaming through its official website. The radio has thousands of followers on its youtube channel, Facebook page, twitter account, and Instagram account. It has an open Whatsapp Number for its audience through which people can send them updates about what is happening around them. Also, radio provides a platform to its audience that they can call in a live program and ask the DJ to play the song of their choice. DJs call upon several celebrities on their shows, and their fans can talk to them directly. The DJs entertain people and give them a different suggestion. It makes them energetic, more motivated, and happy. People who want to console themselves from the hectic routine of life can listen to the fast music which the radio airs. The reason is this that it airs shows according to the interest of the people. The format of the Observer FM is made in such a way that every person loves to listen to it. It involves all kinds of programs and News. FM 91.1 also provides job opportunities for the people who want to join it. It is a commercial radio which advertises different products. This FM airs HipHop, Classic, electronic, rock, jazz, dance music also airs national, international News and Stories. It is an infotainment radio station which involves 50% talks and 50% music. |