Niels bohr atomic theory3/1/2024 ![]() ![]() He proposed his own atomic model, the theory of the composite nucleus, the liquid drop theory and worked in the. Understanding Bohr's model requires some knowledge of electromagnetic radiation (or light).īohr's key idea in his model of the atom is that electrons occupy definite orbitals that require the electron to have a specific amount of energy. Niels Bohr is a physicist that is know for his contributions to quantum physics. In 1913, the Danish physicist Niels Bohr proposed a model of the electron cloud of an atom in which electrons orbit the nucleus and were able to produce atomic spectra. These difficulties cast a shadow on the planetary model and indicated that, eventually, it would have to be replaced. Das Bohrsche Atommodell ist das erste weithin anerkannte Atommodell, das Elemente der Quantenmechanik enthält. The classic diagram of the atom depicts a small. Furthermore, Rutherford's model was unable to describe how electrons give off light forming each element's unique atomic spectrum. March 6, 1913: Bohr describes his model of atom to Rutherford. If the electron circling the nucleus in an atom loses energy, it would necessarily have to move closer to the nucleus as it loses energy, and would eventually crash into the nucleus. Atom - Bohrs Shell Model: In 1913 Bohr proposed his quantized shell model of the atom (see Bohr atomic model) to explain how electrons can have stable orbits around the nucleus. This is, after all, how we produce TV signals. ![]() ![]() It was already known that when a charged particle (such as an electron) moves in a curved path, it gives off some form of light and loses energy in doing so. Unfortunately, there was a serious flaw in the planetary model. Born: October 7, 1885, Copenhagen, Denmark Died: November 18, 1962, Copenhagen (aged 77) Awards And Honors: Copley Medal (1938) Nobel Prize (1922) Notable Family Members: son Aage N. \): Niels Bohr with Albert Einstein at Paul Ehrenfest's home in Leiden (December 1925). ![]()
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What does scid stand for3/1/2024 ![]() ![]() The SS-1e Scud-D variant developed in the 1980s can deliver a terminally guided warhead capable of greater precision. įurther developed variants were the R-17 (later R-300) Elbrus / SS-1c Scud-B in 1961 and the SS-1d Scud-C in 1965, both of which could carry either a conventional high-explosive, a 5- to 80-kiloton thermonuclear, or a chemical (thickened VX) warhead. Far simpler than the V-2's multi-chamber design, and employing an anti-oscillation baffle to prevent chugging, it was a forerunner to the larger engines used in Soviet launch vehicles. The most revolutionary innovation in the R-11 was the engine, designed by A. The R-11 was developed by the Korolyev OKB and entered service in 1957. The R-11 used technology gained from the V-2 as well, but was a new design, smaller and differently shaped than the V-2 and R-1 weapons. The earlier R-1 missile had carried the NATO name SS-1 Scunner, but was of a very different design, almost directly a copy of the German V-2 rocket. ![]() The first use of the term Scud was in the NATO name SS-1b Scud-A, applied to the R-11 Zemlya ballistic missile. ![]() In Russian service it is being replaced by the 9K720 Iskander.ĭevelopment MAZ-543 (9P117) Launcher with 8K14 rocket of 9K72 missile complex "Elbrus" (Scud B), Saint-Petersburg Artillery Museum, Russia. They became familiar to the Western public during the 1991 Persian Gulf War, when Iraq fired dozens at Israel and Saudi Arabia. Scud missiles have been used in combat since the 1970s, mostly in wars in the Middle East. The name Scud has been widely used to refer to these missiles and the wide variety of derivative variants developed in other countries based on the Soviet design. The Russian names for the missile are the R-11 (the first version), and the R-17 (later R-300) Elbrus (later developments). The term comes from the NATO reporting name attached to the missile by Western intelligence agencies. It was exported widely to both Second and Third World countries. A Scud missile is one of a series of tactical ballistic missiles developed by the Soviet Union during the Cold War. ![]() ![]() ![]() Push one end up tight next to the bottom part of the shingle tab. Apply a quarter-inch bead of caulk on the underside of your drip edge, sliding it beneath the tabs. Now that your roof is ready, you can install your rain diverter.Don’t release other parts of your roof further away. Make sure you only release the third course of shingles around your entranceway. ![]() You may need to apply more force with a hammer if it’s asphalt sealant that doesn’t release easily. Carefully lift them away from your roof to break their bond. Loosen up the tabs by gently prying beneath each tab.Set up your ladder using a good technique.Here are the steps to install your rain diverter: To install your rain diverter, you’ll need: DIY Tools You’ll also need to work with your roof, so if you’re not sure it can handle it, call a pro. ![]() You don’t really need expert skills to do that, but you should know how to work safely with a ladder. Now that you have your rain diverter ready, it’s time to install it. How to Install Your Rain Diverter Photo Credit: Bouillante / Canva Pro / License
What is nod scid3/1/2024 ![]() ![]() 13, 14 At present, the NOD/SCID mice have been considered an appropriate model for analysis of human stem cell development and function. 12 We also developed NOD/Shi- scid mice independently from NOD/LtSz- scid mice and described the high engraftment rate of human hematopoietic cells in them. The high engraftment rates of human cells in NOD/LtSz- scid mice have been attributed to immunological multidysfunction, including reductions in macrophage function, complement-dependent hemolytic activity, and NK cell activity. 7-10 As a result, NOD/LtSz- scid mice established by Grenier et al 11 were found to be superior recipients for human cells. 2 After the successful engraftment of human peripheral hematopoietic cells, especially lymphoid cells, 3, 4 and the establishment of HIV-1 infection to T cells developed in these strains, 5, 6 many attempts have been made to develop modified severe combined immunodeficiency (SCID) mice by genetic crossings with inbred or other mutant strains of mice to obtain a more efficient model. Consequently, C.B-17-Prkdc scid ( scid) mice, which are defective in rearrangements of T-cell receptor (TCR) and B-cell receptor (BCR) resulting in defects of functional T and B cells, were discovered in 1983. The epoch-making discovery of nude mice by Isaason and Cattanach in 1962 1-mice defective in the thymus with T-cell deficiency-has contributed to progress in this research. ![]() It is suggested that multiple immunological dysfunctions, including cytokine production capability, in addition to functional incompetence of T, B, and NK cells, may lead to the high engraftment levels of xenograft in NOD/SCID/γ c null mice.Įfforts to develop animal recipients for xenotransplantation, especially human cells, to establish an animal model for human diseases or to investigate mechanisms during the growth and differentiation of human stem cells have long been pursued. The interferon-γ production from dendritic cells from the NOD/SCID/γ c null mouse spleen was significantly suppressed in comparison with findings in 2 other strains of mice. To elucidate the mechanisms involved in the superior engraftment rate in NOD/SCID/γ c null mice, cytokine production of spleen cells stimulated with Listeria monocytogenesantigens was compared among these 3 strains of mice. These results suggest that NOD/SCID/γ c null mice were superior animal recipients for xenotransplantation and were especially valuable for human stem cell assay. Further, even 1 × 10 2 CD34 + cells could grow and differentiate in this strain. In addition to the high engraftment rate, multilineage cell differentiation was also observed. The same high engraftment rate of human mature cells was observed in ascites when peripheral blood mononuclear cells were intraperitoneally transferred. When human CD34 + cells from umbilical cord blood were transplanted into this strain, the engraftment rate in the peripheral circulation, spleen, and bone marrow were significantly higher than that in NOD/Shi- scid mice treated with anti-asialo GM1 antibody or in the β2-microglobulin–deficient NOD/LtSz- scid (NOD/SCID/β2m null) mice, which were as completely defective in NK cell activity as NOD/SCID/γ c null mice. To establish a more appropriate animal recipient for xenotransplantation, NOD/SCID/γ c null mice double homozygous for the severe combined immunodeficiency (SCID) mutation and interleukin-2Rγ (IL-2Rγ) allelic mutation (γ c null) were generated by 8 backcross matings of C57BL/6J-γ c null mice and NOD/Shi- scidmice. ![]() Custom qr code generator free3/1/2024 ![]() ![]() If you want to use the shortener, you pay a little each month. When you're done, as long as the domain, number, or other data point is available, you can send an unlimited amount of traffic to it, forever. Choose from 6 content types, enter in your information, and print your QR. Choose the QR code generation type as needed. Those links above were made with QRStuff, and you can customize things about the QR Code style there or in many other platforms. Fotor: Best Free QR Code Maker Open Fotors free QR code maker page. In this case, you could use a service for a month, possibly with a one month subscription, generate a huge number of QR codes that go straight to the target domain, and then cancel your service. While an unshortened URL might go to the same place, but be longer: When end-users scan it, it will redirect them to the required webpage. All you need to do is, go to our web app, select the Website URL category, paste the link you’d like to add to the QR Code, and get your QR Code. ![]() You can also bypass that by just linking directly to your longer link.Ī shortener service will have some benefits, the QR code will be less dense: You can create a QR Code for a link easily with Scanova’s QR Code Generator. So your /something-something URL will be encoded into the QR code as sh.ort/link and when you pass through that link, they monitor traffic and provide you with reports for a monthly fee. If you choose to use some kind of hosted platform like QRStuff or JotURL, you typically pay for analytics via a URL shortener. ![]() Once a QR code is generated, it will work forever. ![]() Driver genius pro portable3/1/2024 ![]() ![]() These features help users to maximize the performance and lifespan of their drives. In addition, Samsung Magician offers different features depending on the Samsung memory model(s) in use, such as System Compatibility, Performance Benchmark, Performance Optimization, Over Provisioning, Secure Erase, and Data Security. Samsung Magician software is developed and distributed exclusively for owners of Samsung memory products. Samsung Magician is designed to help users easily manage their Samsung memory products, including internal SSDs, portable SSDs, memory cards, and USB flash drives, conveniently update firmware and optimize their drive for performance and reliability. *Magician does not work with SSDs connected via the SCSI controller interface.*While some of its features support Samsung-manufactured OEM SSDs and SSDs from other manufacturers, Magician Software is designed and optimized specifically for Samsung-branded storage products.For more details, please refer to the information provided below. *The features supported by each product category and operating system may vary.With its intuitive interface and wide range of customization features, elevating your drive performance is now effortless – like magic. What’s more, our support now extends to various operating systems, including Windows®, macOS® and Android™. ![]() The latest generation of Magician Software comes complete by integrating Data Migration Software, Portable SSD Software, and Memory Card/UFD Authentication Utility, delivering a comprehensive solution for users. Samsung presents the Magician Software, designed to support Samsung’s memory products from internal SSDs to portable SSDs, memory cards, to USB flash drives. ![]() ![]() ■ Color box Dimension - 225.00 x 145.00 x 35.00mm | Weight - 386g (4XRS232 Incl.Software that’s so powerful you‘ll wonder if it’s… magic. ■ Powered by an available USB port - no external power adapter required ■ No IRQ, DMA, I/O address resources required ■ COM retention: COM Port assignments maintained across reboot ■ Fully compliant with USB 1.1 USB 2.0 compatible ■ Easy way to add 4 RS-232 serial ports Simultaneously ■ Connect a satellite receiver, serial modem, or PDA with serial sync FEATURES ■ Connect bar code scanners, receipt printers and other point of sale devices ■ Connect, monitor and control industrial/automotive sensors and equipment ■ Perfect for IT Administrators looking to add legacy functionality to newer notebooks, PCs and servers that lack an integrated RS232 port Note:The 4XRS232 USB Serial Hub does not support devices such as serial mice that require an IRQ number or I/O address. Configuring and sharing data among multiple modems, GPS devices, cellphones, hand-held scanners, point-of-sale systems, touch screens, medical and scientific instruments, industrial process control devices and UPS systems is a breeze. An easy and inexpensive way to add serial ports to your computer without hassle, the 4XRS232 works with any DB9 serial device. DriverGenius 4XRS232 4-Port USB-to-DB9-Serial Adapter Hub allows you to connect as many as four 9-pin serial devices to a computer or laptop with a USB Type-A port. ![]() Adobe best youtube video editing app2/29/2024 ![]() ![]() 04of 05Blenderīlender is a free and open-source 3D PC designs programming toolset utilized for making vivified films, special visualizations, workmanship, 3D-printed models, movement illustrations, intelligent 3D applications, computer-generated reality, and, previously, computer games. You can use Filmora to insert logos in the videos for marketing and branding purposes. Free version users cannot remove the watermark.įilmora allows you to add a white border to your videos both n online and offline mode.The size of the file increases tremendously after editing.Easily download it from the official website.There's no point in virus interactions while installing the software.Contains a wide range of effects, text styles, and background music.You can easily increase or decrease the consistency of the layers.Advantageous commodity profiles that make saving recordings for different gadgets a snap. Fundamental instruments like zoom, graphs, 360 video altering, and a variety of amendments. Top 5 YouTube Video Editing Software for Beginners 01of 05VSDCĪn enormous arrangement of in-vogue video impacts, channels, and changes. However, if you are looking for more features like adding text overlays or merging two different clips, this might not be the right editing tool. The Official Video Editor can be used to accomplish basic editing tasks. You can also edit them on YouTube and the Official Video Editor is free and easy to use, but it's not as powerful as other video editors. YouTube database stores so many videos without running out of storage space. Top 12 YouTube Video Editing Software to Check Out A. Part 4: 32 Best YouTube Video Editing Tools Solutions (2022 Review) 1. How to decide which youtube video editing software is best in various basic choices available today? Take a look at this quick checklist for all the video editing fundamentals you'll ever need so your blockbusters will never miss a step again. Upload Video to Google Drive Part 3: The Ultimate Video Editing Fundamentals Step 4Select the video files you want to upload. Step 2Click on the New button in the top left corner of the screen. Here are the steps to take: Step 1Open Google Drive and sign in. That is the reason it means a lot to reinforce your current YouTube recordings. YouTube has been known to erase recordings for an assortment of reasons. Notwithstanding, they are exceptionally captivating and can make a strong close-to-home association with watchers. Surprisingly realistic recordings are costly to deliver and can be hard to shoot well. ![]() Lower computer brightness even more2/29/2024 ![]() ![]() Generally, displays with a lower dot pitch have sharper images. Resolution is related to the "dot pitch" of the display. When choosing a new flat panel display, select a screen with the highest resolution possible. If you must use a CRT at work, adjust the display settings to the highest possible refresh rate. To ease eye strain, make sure you use good lighting and sit at a proper distance from the computer screen.Ĭomplications due to flicker are even more likely if the refresh rate of the monitor is less than 75 hertz (Hz). Even if this flicker is imperceptible, it still can contribute to eye strain and fatigue during computer work. Old-fashioned CRT screens can cause a noticeable "flicker" of images, which is a major cause of computer eye strain. ![]() If you have not already done so, replace your old tube-style monitor (called a cathode ray tube or CRT) with a flat-panel LED (light-emitting diode) screen with an anti-reflective surface. AR coating reduces glare by minimizing the amount of light reflecting off the front and back surfaces of your eyeglass lenses. If you wear glasses, consider buying lenses with anti-reflective (AR) coating. Consider installing an anti-glare screen on your display and, if possible, paint bright white walls a darker color with a matte finish. Screen also can cause computer eye strain. Glare from light reflecting off walls and finished surfaces, as well as reflections on your computer Try reducing the number of fluorescent tubes installed above your computer workspace if you are bothered by overhead lighting. But even full spectrum lighting can cause discomfort if it's too bright. Sometimes switching to "full spectrum" fluorescent lighting that more closely approximates the light spectrum emitted by sunlight can be more comforting for computer work than regular fluorescent tubes. If possible, turn off the overhead fluorescent lights in your office and use floor lamps that provide indirect "soft white" LED lighting instead. ![]() Many computer users find their eyes feel better if they can avoid working under overhead fluorescent lights. Reduce interior lighting by using fewer light bulbs or fluorescent tubes, or use lower intensity bulbs and tubes.Īlso, if possible, position your computer screen so windows are to the side, instead of in front or behind it. When you use a computer, your ambient lighting should be about half as bright as that typically found in most offices.Įliminate exterior light by closing drapes, shades or blinds. Use proper lighting.Įye strain often is caused by excessively bright light either from outdoor sunlight coming in through a window or from harsh interior lighting. SEE RELATED: How to choose an eye doctor 2. Measure how far your eyes are from your screen when you sit at your computer, and bring this measurement to your exam so your eye doctor can test your eyes at that specific working distance. During your exam, be sure to tell your eye doctor how often you use a computer and digital devices at work and at home. Get a comprehensive eye exam.Īn annual comprehensive eye exam is the most important thing you can do to prevent or treat computer vision problems. Here are 10 easy steps you can take to reduce your risk of eye strain and the symptoms that go along with it: 1. ![]() Research sponsored by The Vision Council showed that 59% of people who routinely use computers and digital devices experience symptoms of digital eye strain (also known as computer eye strain or computer vision syndrome). It's causing a widespread problem called digital eye strain. It seems like everyone is staring at a computer screen, phone or other digital device these days. How to get relief from digital eye strain symptoms ![]() Avery 5160 download template2/29/2024 ![]() The Avery® 5160® Template is the most popular Label template in the USA. If your labels are in a PDF file format, you can follow this guide. The same print ‘rules’ and suggestions will apply, regardless of what type of labels you want to print. Yes! If your shipping labels or barcode labels are in a PDF file format, you can use this tutorial as a guide for printing them. Can I use this tutorial to print other types of Labels? You can read more about how to Edit PDFs on the Adobe website. You can also read more about mail merges and how we use them daily to help our Customer: How to Print Address Labels from Excel. word document), so that the personalized information is automatically populated in the appropriate place on Labels, Letters, Envelopes etc.įor more information check out this short Article by Mail Merge pros, Microsoft Excel: Use mail merge for bulk email, letters, labels, and envelopes. What is a "mail merge"?Ī mail merge is when you take data from a spreadsheet and merge it with a new document (ex. laser printer, inkjet printer) are perfect for label printing and print pdfs. No, you do not need a special label converter or label printer to print Labels from a PDF file. Do I need a Label printer to print Labels from a PDF file? This is the same size forAvery® 5160® Labels. The most common Label size for address labels is 1 inch by 2.63 inches. You will be able to print the pdf document using Adobe Reader. You do not need Microsoft Word to print a PDF file. Please visit our Labels page for more information and pricing, or call us to place an order: 1 8 Questions about How To Print Mailing Labels from a PDF File Do I need Microsoft Word to print my Labels from a PDF file? If you’re having trouble printing address labels, don’t worry we can print mailing address labels for you and ship them to you via USPS mail! We sell 1000’s of Labels every day, and know how to Print them perfectly, so you don’t have to. Tip: We suggest that you only print 1 page to begin with, so you can make sure everything looks correct before you print ‘All’ your labels. Making address labels has never been easier! When you’re ready, put your Avery® 5160® Labels/ Avery® 8160 mailing labels in your printer, and then select Print. Now it’s time to start printing addresses on labels! How to Print Address Labels from a PDF File: Step 3 – Print Settings Step 4 : Print Your Mailing Labels After you change the print Scale to ‘Actual Size’, your Avery® 5160® Labels will align properly and print out perfectly.When you’re printing mailing labels from a PDF file, you need to change the Scale to ‘Actual Size’. Print Settings normally default to the ‘Fit to Page’ option.(The words used to describe this section vary, depending on what program you use to print your labels). When your Print settings window is open, scroll down to the section that relates to ‘Scale’ or ‘Size Options’.Click the Right button on your mouse and select Print, or. ![]() You can get to your Printer settings in a few different ways: If you don’t see a print button, you can adjust your print options. When the PDF file is open, click on the print button. If you don’t have Adobe Reader, you can download a free version online : Download Adobe ReaderĪfter you Open the PDF file, it will look something like this: How to Print Address Labels from a PDF File Step 2 : Go to ‘Print’ & Your Print Settings If you already have Adobe Acrobat Reader on your computer, the file will Open after you double-click on the file name. ![]() How to Print Address Labels from a PDF File – Step 1: Open the Labels PDF File You can do this on a mac or a desktop computer. How to Print Address Labels from a PDF File Step-by-Step Guide: How to Print Your Own Address Labels from a PDF File Step 1 : Open the Labels PDF fileįind the Mailing Labels PDF file on your computer and double-click the file to Open it. ![]() Send sms text messages from computer2/29/2024 ![]() ![]() Tap on the “Scan QR code” and use your device to scan the QR code from the Android Messages homepage.Īfter doing so, your latest message threads, contacts, and other settings will be encrypted and cached on your browser.Tap on the three dots and then go to “Messages for the web.”.Then go to the Android Messages application on your phone.Going further, firstly you need to set Android Messages as your default app on the device. Though it is not available on the Internet Explorer browser. Irrespective of the Android version you are using, it caters all to the Android devices. ![]() Unlike iOS, you can send a text message to other Android devices through Mac also, which is not yet reciprocated by Apple. An Android user can send texts right from a web interface. We all know, that Android is the most flexible operating system to date, and messaging is just one aspect of it. Interestingly, with macOS Sierra, you can bring in Siri to send, read, and reply to Messages. Type your message in the field at the bottom of the window, then press Return to send it.Tap on the plus sign and choose a recipient or enter the recipient's name, email address, or phone number.Click at the top of the Message window.Apple ID is integrated with the iCloud, the App Store, the iTunes Store, and the account that runs on your Mac. To get going, you need to sign in when you first open the Messages app and sign in with your Apple ID that you use with Messages on your iPhone. Moreover, the iPhone owners can use it for SMS and MMS messages, too. It also supports other Apple and non-Apple devices. You can send messages to any Mac, iPhone, iPad, or iPod touch that uses iMessage. For the iPhone owners, it is the most convenient way to send text, but for that, you need to have MacOS to get the job done. IMessage is Apple's secure messaging service. Read below and get to know about it.īefore going forward let me tell you that the iOS and Android, both these platforms offer the ability to sync your device with your computer and that also includes text messages. Today, I will be discussing various online services that will help you to do send a message through your computer. If it’s so, try the computer as well, it is quite impressive. You might not have access to your phone or you might be looking to give a try to some new method. There are many ways by which you can send a message from your computer. But have you tried doing it through your computer? Yes, computer. You can do it from your phone, tablet, or even from a smartwatch as well. We have multiple platforms from where we can send the text and chat with our friends and family. Texting is something, which we can’t stay away from, and after the transformation of the smartphones. ![]() AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |