Добавить новость
ru24.net
News in English
Июль
2021

Новости за 15.07.2021

Tetrahymena meiosis: Simple yet ingenious

Plos.org 

by Josef Loidl

The presence of meiosis, which is a conserved component of sexual reproduction, across organisms from all eukaryotic kingdoms, strongly argues that sex is a primordial feature of eukaryotes. However, extant meiotic structures and processes can vary considerably between organisms. The ciliated protist Tetrahymena thermophila, which diverged from animals, plants, and fungi early in evolution, provides one example of a rather unconventional meiosis. Tetrahymena has a simpler meiosis compared with most other organisms... Читать дальше...



Responses to 10 common criticisms of anti-racism action in STEMM

Plos.org 

by Maya L. Gosztyla, Lydia Kwong, Naomi A. Murray, Claire E. Williams, Nicholas Behnke, Porsia Curry, Kevin D. Corbett, Karen N. DSouza, Julia Gala de Pablo, Joanina Gicobi, Monica Javidnia, Navina Lotay, Sidney Madison Prescott, James P. Quinn, Zeena M. G. Rivera, Markia A. Smith, Karen T. Y. Tang, Aarya Venkat, Megan A. Yamoah

Risk sensitivity and theory of mind in human coordination

Plos.org 

by Pedro L. Ferreira, Francisco C. Santos, Sérgio Pequito

What humans do when exposed to uncertainty, incomplete information, and a dynamic environment influenced by other agents remains an open scientific challenge with important implications in both science and engineering applications. In these contexts, humans handle social situations by employing elaborate cognitive mechanisms such as theory of mind and risk sensitivity. Here we resort to a novel theoretical model, showing that both... Читать дальше...

A cross-institutional analysis of the effects of broadening trainee professional development on research productivity

Plos.org 

by Patrick D. Brandt, Susi Sturzenegger Varvayanis, Tracey Baas, Amanda F. Bolgioni, Janet Alder, Kimberly A. Petrie, Isabel Dominguez, Abigail M. Brown, C. Abigail Stayart, Harinder Singh, Audra Van Wart, Christine S. Chow, Ambika Mathur, Barbara M. Schreiber, David A. Fruman, Brent Bowden, Christopher A. Wiesen, Yvonne M. Golightly, Chris E. Holmquist, Daniel Arneman, Joshua D. Hall, Linda E. Hyman, Kathleen L. Gould, Roger Chalkley, Patrick J. Brennwald, Rebekah L. Layton

Читать дальше...

Perception of biological motion by jumping spiders

Plos.org 

by Massimo De Agrò, Daniela C. Rößler, Kris Kim, Paul S. Shamble

The body of most creatures is composed of interconnected joints. During motion, the spatial location of these joints changes, but they must maintain their distances to one another, effectively moving semirigidly. This pattern, termed “biological motion” in the literature, can be used as a visual cue, enabling many animals (including humans) to distinguish animate from inanimate objects. Crucially, even artificially created scrambled stimuli... Читать дальше...

Origins of 1/f-like tissue oxygenation fluctuations in the murine cortex

Plos.org 

by Qingguang Zhang, Kyle W. Gheres, Patrick J. Drew

The concentration of oxygen in the brain spontaneously fluctuates, and the distribution of power in these fluctuations has a 1/f-like spectra, where the power present at low frequencies of the power spectrum is orders of magnitude higher than at higher frequencies. Though these oscillations have been interpreted as being driven by neural activity, the origin of these 1/f-like oscillations is not well understood. Here, to gain insight of the origin of the 1/f-like oxygen fluctuations... Читать дальше...

Don’t let the perfect be the enemy of the good

Plos.org 

by Marcus Munafò

There is a growing interest in the factors that influence research quality and into research culture more generally. Reform must be evidence based, but experimental studies in real-world settings can be challenging. Observational evidence, even if imperfect, can be a valuable and efficient starting point to help identify the most fruitful avenues for meta-research investment. There is growing interest in the factors that influence research quality, and into research culture more generally. Читать дальше...

Persian leopard spotted in Dashtestan

En.mehrnews.com 

TEHRAN, Jul. 15 (MNA) – A Persian leopard has been spotted at the Dashtestan region by a camera trap, the head of the city's department of environment said.

Новости России
Москва

Заместитель управляющего Отделением Фонда пенсионного и социального страхования Российской Федерации по г. Москве и Московской области Алексей Путин: «Клиентоцентричность - наш приоритет»


Bach says virus rules ‘working’ ahead of Tokyo Games

Times of Malta 

Olympics chief Thomas Bach said Thursday that Tokyo Games anti-virus rules “are working”, as the Japanese capital recorded its highest number of new infections since January. With just over a week until Tokyo 2020 opens for events mostly behind closed doors, organisers insist they can be held safely as long as athletes, officials and journalists adhere to strict anti-virus regulations. But an athlete in Japan tested positive for the virus along with five Olympic workers, mostly contractors, as Tokyo recorded 1,308 new cases. Читать дальше...

Children's Theatre Workshop is going strong

The Toledo Blade 

If a Dr. Seuss-style book could be written about the Children’s Theatre Workshop, it would probably be in the style of Oh, the Places You'll Go! with the title changed to Oh! What a Year It’s Been!

How Russia Became Africa’s Largest Weapons Dealer

The National Interest 

Mark Episkopos

Russian Military, Europe

Russia has considerably widened its export lead over the next two biggest players in the African market, France and the United States, over the past two decades.

Here's What You Need to Remember: As of 2020, Rosoboronexport—Russia’s state arms export agency—accounts for a whopping 49 percent of Africa’s arms imports. Algeria and Egypt are historically Moscow’s two biggest clients, but Russian exporters have pushed in recent years to... Читать дальше...


Спорт в России и мире

Новости спорта


Новости тенниса
Янник Синнер

Скандальное поражение «Барселоны», Синнер обыграл де Минора. Главное к утру






Собянин: музеи получат 600 найденных на Тверской улице артефактов

Жители Забайкалья смогут открыть новые горизонты с помощью конкурса «Большой Дальневосточный квест»

В СФ напомнили об ответственности работодателя за вызов сотрудника с больничного

Успешную операцию по удалению гигантской опухоли провели мытищинские хирурги