Sleep is a fundamental need, just like food or water. "You'll die without it," said Keith Hengen, an assistant professor of biology at Washington University in St. Louis. But what does sleep actually accomplish? For years, ...
Jan 8, 2024
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Scientists at Wake Forest University School of Medicine have demonstrated that a neurosurgical procedure used to research and measure dopamine and serotonin in the human brain is safe.
Aug 24, 2022
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Lessons learned over the past two years will not only improve the nation's ability to handle the next pandemic but also lead to substantive gains throughout the health care system.
Dec 1, 2021
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Mobile smartphone technology can accelerate first responder dispatch and may be instrumental to improving out of hospital cardiac arrest (OCHA) survival. That is the conclusion of a study published in the October 2020 issue ...
Oct 30, 2020
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Canada is introducing a contact tracing smartphone app that will notify Canadians of exposure to the new coronavirus.
Jun 18, 2020
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One of the major concerns about the COVID-19 coronavirus pandemic has been the burden that cases will place on the health care system. A new study published April 23 in the journal Health Affairs found that the spread of ...
Apr 23, 2020
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Seattle Children's Hospital said Monday it believes a mold outbreak that has sickened seven patients, one fatally, since summer 2018 is linked to mold-related infections dating back nearly two decades.
Nov 18, 2019
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(HealthDay)—Medical devices that can connect to the internet might be at risk for hacking, the U.S. Food and Drug Administration warned Tuesday.
Oct 2, 2019
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Think of the frustration when your computer slows down, watching the little wheel spin round and round, or when your mouse suddenly gets a life of its own and starts jumping around.
May 29, 2019
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The Philippines is testing an app that will speed up delivery of health services to hundreds of remote island communities, the science department said Thursday.
Jun 18, 2015
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An operating system (commonly abbreviated to either OS or O/S) is an interface between hardware and user; an OS is responsible for the management and coordination of activities and the sharing of the resources of the computer. The operating system acts as a host for computing applications that are run on the machine. As a host, one of the purposes of an operating system is to handle the details of the operation of the hardware. This relieves application programs from having to manage these details and makes it easier to write applications. Almost all computers (including handheld computers, desktop computers, supercomputers, video game consoles) as well as some robots, domestic appliances (dishwashers, washing machines), and portable media players use an operating system of some type. Some of the oldest models may however use an embedded operating system, that may be contained on a compact disk or other data storage device.
Operating systems offer a number of services to application programs and users. Applications access these services through application programming interfaces (APIs) or system calls. By invoking these interfaces, the application can request a service from the operating system, pass parameters, and receive the results of the operation. Users may also interact with the operating system with some kind of software user interface (UI) like typing commands by using command line interface (CLI) or using a graphical user interface (GUI, commonly pronounced “gooey”). For hand-held and desktop computers, the user interface is generally considered part of the operating system. On large multi-user systems like Unix and Unix-like systems, the user interface is generally implemented as an application program that runs outside the operating system. (Whether the user interface should be included as part of the operating system is a point of contention.)
Common contemporary operating system families include BSD, Darwin (Mac OS X), GNU/Linux, SunOS (Solaris/OpenSolaris), and Windows NT (XP/Vista/7). While servers generally run Unix or some Unix-like operating system, embedded system markets are split amongst several operating systems.
This text uses material from Wikipedia, licensed under CC BY-SA
