New fossils found in Northeastern China have revealed a remarkable evolutionary coincidence: an extinct group of insects known as Kalligrammatid lacewings (Order Neuroptera) share an […]

The post Remarkable butterfly look-alike lived 50 million years before butterflies appeared appeared first on Smithsonian Insider.

Aparna Sherlekar, Gayatri Mundhe, Prachi Richa, Bipasha Dey, Swati Sharma, and Richa Rikhy

Branched actin networks driven by Arp2/3 collaborate with actomyosin filaments in processes such as cell migration. The syncytial Drosophila blastoderm embryo also shows expansion of apical caps by Arp2/3 driven actin polymerization in interphase and buckling at contact edges by MyosinII to form furrows in metaphase. Here we study the role of Syndapin (Synd), an F-BAR domain containing protein in apical cap remodelling prior to furrow extension. synd depletion showed larger apical caps. STED super-resolution and TIRF microscopy showed long apical actin protrusions in caps in interphase and short protrusions in metaphase in control embryos. synd depletion led to sustained long protrusions even in metaphase. Loss of Arp2/3 function in synd mutants partly reverted defects in apical cap expansion and protrusion remodelling. MyosinII levels were decreased in synd mutants and MyosinII mutant embryos have been previously reported to have expanded caps. We propose that Syndapin function limits branching activity during cap expansion and affects MyosinII distribution in order to shift actin remodeling from apical cap expansion to favor lateral furrow extension.

The prehistoric Xenicibis used its wings like two clubs hinged at the wrist joint in order to swing at and attack one another.

The post Prehistoric bird able to yield extreme fighting force with club-like wings appeared first on Smithsonian Insider.

The universe is 13.8 billion years old, while our planet formed just 4.5 billion years ago. Some scientists think this time gap means that life […]

The post Is Earthly Life Premature From a Cosmic Perspective? appeared first on Smithsonian Insider.

Forensic anthropologists from the Smithsonian's National Museum of Natural History discover African remains at a Colonial burial site in Maryland. Follow them as they study the remains, reconstruct the face and body, and share what they learn about the African experience in the Chesapeake in the 1600s.

The post Smithsonian team examines African remains from a colonial burial site in Maryland appeared first on Smithsonian Insider.

The post Killer carnivores: Titanoboa vs. T-Rex — Premieres April 1 on Smithsonian Channel appeared first on Smithsonian Insider.

Maintaining natural movement of animals that live in the tropical rainforest canopy in South America is important for the health of the ecosystem. As development […]

The post Tremie Gregory uses camera traps to study “bridges” in the rainforest canopy appeared first on Smithsonian Insider.

The storage and flux of terrestrial carbon (C) is one of the most uncertain components of the global C budget and detailed quantification of forest […]

The post Remote sensing of a Smithsonian forest with airborne LiDAR appeared first on Smithsonian Insider.

At the 2018 Smithsonian Folklife Festival, Armenian participants Mariam Hovhannisyan and Stepan Toroyan—who were recently married—recreated a traditional ceremony on the National Mall, with contributions […]

The post Armenian Wedding Ceremony appeared first on Smithsonian Insider.

In Armenia, the completion of a carpet and cutting it from its loom is a significant rite of passion for young female weavers.

The post Smithsonian Folklife Festival: Armenian carpet-cutting ceremony appeared first on Smithsonian Insider.

HD Video Player PUP is a potentially unwanted program that in itself is not malicious, but if installed indicates that you most likely have malware or other potentially uwnanted programs installed as well.

This article was published first at Remove the HD Video Player PUP

Power App is a Google Chrome extension that has a description of "This extension configures your Default Search to Power App (searchpowerapp.com)".

This article was published first at Remove the Power App Chrome Extension

If searches from a browser's address bar and possibly search engines are being redirected through the site https://searchpowerapp.com/, then you most likely have a browser extension or addon installed that is causing these redirects. Some extension will cause all of the searches from your browser's address bar to redirect through https://searchpowerapp.com/, which eventually redirects to Yahoo.com.

This article was published first at Remove the Searchpowerapp.com Search Redirect

Full System Care PUP is a potentially unwanted program that states it scans Windows for Malware/Pup Threats, ways to Enhance System Performance, System/User Software Related issues, and Startup/Uninstall and User Items. When Full System Care scans a computer it will list a variety of detected issues, but state that you need to first purchase a license before you can fix them. My concern is that many of the issues that it detects are not what I feel would cause a problem on a computer.

This article was published first at Remove the Full System Care PUP

The Windows Defender Browser Protection tech support scam is a fake web site alert that states that Windows Defender Browser Extension detected someone to hack your bank account.

This article was published first at Remove the Windows Defender Browser Protection Tech Support Scam

Flash App+ is a Google Chrome extension that has a description of "This extension configures your Default Search to Flash App+ (searchpowerapp.com)".

This article was published first at Remove the Flash App+ Chrome Extension

If you see a web site that states "Press <> to watch the video" and then prompts you to allow browser notifications, do not click on the allow button. These sites are just trying to trick you into subscribing to their browser notifications so that they can send notification spam directly to your desktop.

This article was published first at Remove the Press Allow to watch the video Notification Page

Wisip is a Google Chrome extension that has a description of "This extension configures your Default Search to Smash Search (srchus.xyz)".

This article was published first at Remove the Wisip Chrome Extension

If searches from a browser's address bar and possibly search engines are being redirected through the site https://vitosc.xyz/, then you most likely have a browser extension or addon installed that is causing these redirects. Some extension will cause all of the searches from your browser's address bar to redirect to https://vitosc.xyz/.

This article was published first at Remove the Vitosc.xyz Search Redirect

If searches from a browser's address bar and possibly search engines are being redirected through the site https://srchus.xyz.com/, then you most likely have a browser extension or addon installed that is causing these redirects. Some extension will cause all of the searches from your browser's address bar to redirect through https://srchus.xyz.com/, which redirects to https://vitosc.xyz/.

This article was published first at Remove the Srchus.xyz Search Redirect

This new research has revealed that in areas considered unsuitable for farming today, "pre-Columbian farmers constructed thousands of raised fields in the seasonally flooded coastal savannas of the Guianas.

The post Amazon farmers who vanished centuries ago were remarkably innovative appeared first on Smithsonian Insider.

Obsessive in his collecting and emotionally invested in contributing to science and perpetuating knowledge, Palmer lived the adventurous yet nomadic life of a collector.

The post Remarkable ethnobotany collections of Edward Palmer highlighted in new Smithsonian Website appeared first on Smithsonian Insider.

Hidden in plain sight–that’s how researchers describe their discovery of a new genus of large forest tree commonly found, yet previously scientifically unknown, in the […]

The post Remarkable new tree species was “hidden in plain sight” in the Andes appeared first on Smithsonian Insider.

When the Signal Editor is saving data, the indicator that the save is occurring does not appear.  You might notice a delay when saving large data files.This bug exists in the following release(s):
R2020a

Interested in Upgrading?

(The Paypers) A new survey suggests the majority of Canadians remain worried about the security of their personal information online.

Short-term exposure to current levels of ozone in many areas is likely to contribute to premature deaths, says a new National Research Council report, which adds that the evidence is strong enough that the U.S. Environmental Protection Agency should include ozone-related mortality in health-benefit analyses related to future ozone standards.

Many U.S. farmers who grow genetically engineered (GE) crops are realizing substantial economic and environmental benefits -- such as lower production costs, fewer pest problems, reduced use of pesticides, and better yields -- compared with conventional crops, says a new report from the National Research Council.

It is now possible to estimate the influence of climate change on some types of extreme events, such as heat waves, drought, and heavy precipitation, says a new report from the National Academies of Sciences, Engineering, and Medicine.

Over the last 25 years, deep-water oil and gas production in the Gulf of Mexico has increased significantly.

Good morning. Welcome to the release of the report Preparing for Future Products of Biotechnology, from the National Academies of Sciences, Engineering, and Medicine.

While the Federal Motor Carrier Safety Administration’s (FMCSA) Safety Measurement System (SMS) used to identify commercial motor vehicle carriers at high risk for future crashes is conceptually sound, several features of its implementation need improvement, says a new congressionally mandated report from the National Academies of Sciences, Engineering, and Medicine.

With the sharp and largely unexpected increase in the long-distance movement of domestically produced crude oil, ethanol, and natural gas since 2005, a number of concerns have arisen about the safe transport of these hazardous materials, particularly in relation to railroad track defects, rural communities’ emergency response preparedness, and the older tank car designs that will continue to be used in multi-car unit trains, says a new report from the National Academies of Sciences, Engineering, and Medicine.

While the U.S. Department of Veterans Affairs (VA) provides mental health care of comparable or superior quality to care provided in private and non-VA public sectors, accessibility and quality of services vary across the VA health system, leaving a substantial unmet need for mental health services among veterans of the recent wars in Afghanistan and Iraq, says a new congressionally mandated report from the National Academies of Sciences, Engineering, and Medicine.

While health care has made great strides in recent years with the proliferation of electronic health records (EHRs), establishment of regional health information exchanges, and development of data exchange standards and interfaces, interoperability among health care technologies remains very limited, says a new National Academy of Medicine (NAM) special publication.

To achieve goals for climate and economic growth, “negative emissions technologies” (NETs) that remove and sequester carbon dioxide from the air will need to play a significant role in mitigating climate change, says a new report from the National Academies of Sciences, Engineering, and Medicine.

Along with participation in the International Thermonuclear Experimental Reactor (ITER) project – a large, international burning plasma experiment – the U.S. Department of Energy (DOE) should start a national program of accompanying research and technology to build a compact pilot plant that produces electricity from fusion at the lowest possible capital cost, says a new report from the National Academies of Sciences, Engineering, and Medicine.

We recently launched a new website intended to highlight the science underlying questions that our research shows Americans have about current issues.