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(AP) Washington Gov. Today 8 °-1° Mon 1°-6° Tue. Has Russia invaded Ukraine? Prayer times - East London Mosque az - Latest news from Azerbaijan The FTSE 100 in London fell 3. Latest News on Exchange Rates UK. Ukraine are priced at 9/4 (3.

Select Specialty Registered Nurse Enrolled Nurse Midwifery Assistant In Nursing Occupational Therapist Physiotherapy Administration Medical Imaging Allied Health Carer Clinical Education / Sales General Practitioners Paramedic. BLOOMBERG February 18 Twitter ban: ECOWAS Court rejects Nigerian govt's latest request - DAILY POST February 18 FOREX-Yen bid, bitcoin battered as Ukraine. While the current build-up of Russian forces near Ukraine rivals the 2014 annexation of Crimea - when Russia openly backed separatists trying to sever ties to Kyiv - the. Russia launches Ukraine

Acoustic levitation allows small objects, like droplets of liquid, to float. Unless you travel into the vacuum of space, sound is all around you every day. But most of the time, you probably don't think of it as a physical presence. You hear sounds; you don't touch them. The only exceptions may be loud nightclubs, cars with window-rattling speakers and ultrasound machines that pulverize kidney stones. But even then, you most likely don't think of what you feel as sound itself, but as the vibrations that sound creates in other objects. The idea that something so intangible can lift objects can seem unbelievable, but it's a real phenomenon. Acoustic levitation takes advantage of the properties of sound to cause solids, liquids and heavy gases to float. The process can take place in normal or reduced gravity. In other words, sound can levitate objects on Earth or in gas-filled enclosures in space. Sometimes, the problem with weather is how pilots choose to deal with it. Sylvia Wrigley, author of the book "Why Planes Crash," told BBC News in 2014 that she couldn't think of a crash in which weather was the sole explanation. One weather-related risk is continuation bias - that is, the inclination to continue with an existing plan, even if it is inadvisable. Libyan agents planted a bomb on Pan Am Flight 103 on December 21, 1988. The plane exploded midair over Lockerbie, Scotland, killing 270 people. Not every air catastrophe is an accident, unfortunately. There's also a rare, but even more disturbing, scenario, in which a suicidal pilot decides to take his life and those of his crew and passengers by deliberately crashing the aircraft. That compilation includes a controversial 1990 EgyptAir crash off the coast of Massachusetts that killed 217 people. The air traffic control tower at Manchester Airport in the U.K. Mistakes in the tower can be dangerous.|Former CIA Director Gen. David Petraeus on tensions being high as the threat of a Russian war looms over Ukraine. President Biden has held office for more than 13 months, but former President Trump still occupies a significant space in media coverage of the unfolding Russia-Ukraine crisis. Analysis of what he would or wouldn't have done as president, and explanations of why Russia didn't invade Ukraine while the man accused for years of collusion with the Kremlin held office, have been prevalent in recent days. Trump also drew fierce criticism this week for praising "savvy" Russian President Vladimir Putin's "genius" declaration that two east Ukrainian territories controlled by pro-Russian separatists were "independent," while also claiming Putin wouldn't have done it if he was still in office. Even before Trump's pronouncements on Putin drove a news cycle, some journalists strained to make Biden's handling of the situation about Trump. Criticized for being passive and enabling Russia with his energy policies, Biden has imposed sanctions and moved U.S. Set before the events of Half-Life 2, the game allows players to step into the shoes of fan-favorite character Alyx Vance. In order to fight the Combine, an alien empire set on taking over Earth, Alyx sets off on a mission to seize one of the invaders’ superweapons. The game really leans into the VR element, allowing players to use "gravity gloves" to interact with the environment and manipulate objects. By combining creative physics puzzles with exciting combat and exploration sequences and the heart-pounding intensity of the survival horror genre, Alyx has been touted as VR’s first "killer app" for good reason. Available on: Microsoft Windows & Linux. These days, nostalgia sells - and the latest entry in the Streets of Rage series proves that. For the unfamiliar, this side-scrolling beat ’em up franchise was first released as a trilogy of games for the Sega Genesis in the 1990s. Since then, those early installments have been ported countless times, but now, nearly three decades later, Streets of Rage finally has a completely new chapter.|The infamous handshake between U.S. President Donald Trump. French President Emmanuel Macron at the U.S.S. When Donald Trump first met French President Emmanuel Macron in May at a meeting of world leaders in Europe, what should have been a harmless and largely forgettable social ritual instead spurred a superstorm of scrutiny and silliness. We are talking about The Handshake That Shook the World. The Tussle in Brussels. Many of us will overanalyze anything. Politics. Relationships. A gathering storm. A wrestling match. And if there's something that incorporates all of that? Hold the presses. That one gets our undivided attention. But an innocent handshake? Maybe we're making too much of this? Frank Bernieri, a psychologist at Oregon State University who has studied the art and psychology behind handshakes. It's supposed to convey a mutual respect, a get-together of two equals on common and even ground. The public handshake is a standard part of that. The Macron-Trump handshake was anything but. In a "good" handshake, hands are supposed to approach at the same speed.

Russia launches Ukraine Looking at an item's difficulty and discrimination will assist the test developer in determining what is wrong with individual items. Item and test analysis provide empirical data about how individual items and whole tests are performing in real test situations. Crocker, L., & Algina, J. (1986). Introduction to classical. Modern test theory. New York: Holt, Rinehart and Winston. Ebel, R.L., & Frisbie, D.A. 1986). Essentials of educational measurement. Englewood Cliffs, NJ: Prentice-Hall. Gronlund, N.E., & Linn, R.L. 1990). Measurement and evaluation in teaching (6th ed.). Henrysson, S. (1971). Gathering, analyzing, and using data on test items. In R.L. Thorndike (Ed.), Educational Measurement (p. 141). Washington DC: American Council on Education. Millman, J., & Greene, J. (1993). The specification and development of tests of achievement and ability. In R.L. Linn (Ed.), Educational measurement (pp. 335-366). Phoenix, AZ: Oryx Press. Nunnally, J.C. (1972). Educational measurement and evaluation (2nd ed.). Pedhazur, E.J., & Schmelkin, L.P. 1991). Measurement, design, and analysis: An integrated approach. Popham, W.J. (1981). Modern educational measurement. Englewood Cliff, NJ: Prentice-Hall. Sax, G. (1989). Principles of educational and psychological measurement and evaluation (3rd ed.). Thompson, B., & Levitov, J.E. 1985). Using microcomputers to score and evaluate test items. Thorndike, R.M., Cunningham, G.K., Thorndike, R.L., & Hagen, E.P. 1991). Measurement and evaluation in psychology and education (5th ed.). Wiersma, W. & Jurs, S.G. 1990). Educational measurement and testing (2nd ed.). Boston, MA: Allyn and Bacon. Wood, D.A. (1960). Test construction: Development and interpretation of achievement tests. Cell phone companies are almost as confusing as the phones they offer. They each have different plans, work with different phone manufacturers and have differing levels of service and coverage. You also have to decide if you're willing to pay as you go with a smartphone, or if you want to be locked into a contract. Having a contract can save you some money, but it means sticking with that cell phone company for years. If you choose the wrong company or plan and sign a contract, you're stuck. To find the right cell phone company, check out which company has the best coverage where you live. Having a great smartphone is meaningless if you can't connect to the Web or are constantly dropping calls. Look at the coverage maps available at any cell phone carrier's website. In addition to making sure the area you're in has good coverage, make sure the network you want is available in your area.|Actress Sophie Monk (c) launches the Hollywood Fashion Shapes underwear shapewear range at Myer Sydney City on Oct. 14, 2008 in Sydney, Australia. What Sullivan was getting at was that the style of architecture. Design of any object should reflect its purpose. Sometimes form and function are wed together beautifully; other times, you end up with a very functional item that is not at all attractive. At the opposite extreme, you have a gorgeous object whose highly designed form gets in the way of its function. There is no place where this last example is more obvious than in women's fashion. Think of 4-inch stiletto heels. Or giant hoop skirts of long ago. These fashions and others are not terribly functional, but make women look attractive - at least according to the standards of their time. To conform their bodies into more desirable shapes, women have turned to special undergarments designed to flatter their figures. These are called shapewear. The researchers even controlled for the effects of time zone changes and travel, like inconsistencies from jet lag, by focusing on East Coast teams playing on the same coast. So, poor-performing NBA players may need to put a curfew on their nighttime tweeting. Of course, lack of sleep can impair the best of us nonathletes -40 percent of Americans get less than the recommended seven hours of slumber, which lends itself to daytime sleepiness and poor mental and physical functioning. However, research focusing on the "real-world performance" of NBA players could help researchers and NBA staff better analyze and improve players' performance on the court. In a separate 2015 study, researchers at the Rochester Institute of Technology tracked the Twitter feeds of close to 350 NBA players via social media analytics. They concluded that NBA players' tweets (24 hours pregame) predicted how they played: Positive tweets equated to better game-day play. The authors suggested coaches can benefit from using a sentiment analysis approach, observing tweets to get a sense of players' pregame emotional state, and then take measures to prevent underperformance. The NBA has a rule in place that prevents players from tweeting 45 minutes before tip-off. The iconic blue Twitterbird may have gotten its name, "Larry," from NBA Hall of Famer Larry Bird.

Sent to the readout electronics via Ethernet cables. For each section, the readout electronics consists of three Flash Analogue-to-Digital Converter (FADC) boards. They convert the analogue signal to a 12 bit digital signal with a sampling rate of 250 MHz rate for 24 channels. Among those 24 channels, 23 are used for tank signals and the last channel is used to trigger the readout during calibration with a laser. The trigger decision is taken by the FPGA on board each FADC card, independently from the others. This implies that the whole array is effectively divided into 15 independent sub-arrays. In order to declare a trigger, at least 2 channels out of the 23 tank channels with a signal above 1 photo-electron (pe) within a time window of 160 ns are required. When those conditions are met, the 24 channels are read out for 200 ns before and after the trigger time and the traces are sent via 10 GBit optical fibres to the main server where the data reduction is performed.|Are you team bat or team dolphin? The scientists have weighed in. The score is super close. Without burdock burrs, squid nerves and kingfisher beaks - respectively - we wouldn't have Velcro, Schmitt Trigger input circuits or the high-speed Shinkansen bullet train. Engineers love to mine the natural world for ideas. Echolocation is another example where nature beat mankind to the punch. Echolocation is the process of detecting or examining an object by hitting it with high-frequency sound waves, which then bounce back to the source. Sonar technology has enabled humans to do this for more than 100 years, but numerous toothed whales - a lineage that includes dolphins, porpoises, and sperm whales - utilize echolocation. So do around 1,000 bat species. As sonar engineering continues to evolve, future inventors will probably derive lots of inspiration from bats and toothy cetaceans alike. But which group will be more valuable to the pioneers of tomorrow? That question has led to some playful ribbing among scientists. Third, sound is a vibration that travels through a medium, like a gas, a liquid or a solid object. A sound's source is an object that moves or changes shape very rapidly. For example, if you strike a bell, the bell vibrates in the air. As one side of the bell moves out, it pushes the air molecules next to it, increasing the pressure in that region of the air. This area of higher pressure is a compression. As the side of the bell moves back in, it pulls the molecules apart, creating a lower-pressure region called a rarefaction. The bell then repeats the process, creating a repeating series of compressions and rarefactions. Each repetition is one wavelength of the sound wave. The sound wave travels as the moving molecules push. Pull the molecules around them. Each molecule moves the one next to it in turn. Without this movement of molecules, the sound could not travel, which is why there is no sound in a vacuum.|Video conferencing can save travel time and increase productivity; thus it has been increasingly changing the business world significantly. Everyone can recognise the symptoms of a bad video conference: choppy connection, fuzzy or echoing audio, poor lighting, distracted attendees. Though it was once touted as the communication method of the future, video calling is often seen as the least efficient way to exchange information. In an office setting, a video conference can be a powerful tool for organising teams and accomplishing goals - but few people understand how to make a video call work well. The most important aspect of video conferencing happens to be stable as well as fast internet connectivity. To ensure the best video conferencing experience, it is essential to understand your video conferencing bandwidth. Bandwidth represents your connection capacity. A low bandwidth will limit and affect the quality of the content seen by the eyes of the user. Go for secure connectivity along with advanced encryption. Password protection in case your only choice is wireless connectivity. And somebody's making a lot of money on these little bacterial helpers, so what are they actually able to do for us, and are they safe? Chris Irwin, a dietitian and lecturer in Nutrition & Dietetics at Griffith University in Queensland, Australia. While there's not a lot of evidence supporting the idea that probiotics could help with your eczema, allergies or dental woes - sorry - they might actually help people looking to avoid vaginal yeast infections or upper respiratory infection picked up from a cold virus. Other studies have found that probiotics can help with digestive issues like irritable bowel syndrome and may improve the frequency and consistency of your poop. So, what's in probiotics that makes them so helpful? Probiotics, meaning "for life" in Greek, became the term for the bacteria that was found in those fermented products. The two main types of bacteria considered to be probiotics include strains from the Lactobacillus and Bifidobacterium genera (other genera, such as Escherichia, Enterococcus and Saccharomyces have also been designated probiotics, but to a lesser and more questionable extent).