Биология клетки — курс Евгения Шеваля


Все, что нужно знать о рождении, строении, жизни и смерти клетки за два часа.

Клетка является элементарной живой системой, изучением которой занимается несколько научных дисциплин. В рамках курса лекций «Биология клетки» будут освещены вопросы, касающиеся организации и функционирования клетки. В частности, речь пойдет о структуре клетки, особенностях формирования ее компонентов – органелл. Также будут рассмотрены механизмы размножения и гибели клеток, принципы формирования упорядоченных клеточных ансамблей – бактериальных пленок и тканей животных, процессы общения клеток, которые позволяют создавать многоклеточные организмы, внутри которых жизнь каждой клетки подчинена интересам целого.

Содержание видео:
0:10 Наука о клетке
10:40 Плазматическая мембрана
25:10 Клеточные органеллы
34:15 Компактизованный геном
46:25 Живая клетка
55:10 Размножение клеток
1:08:00 Общение клеток
1:17:15 Гибель клеток
1:31:15 Межклеточное вещество
1:44:48 Ткани животных

Это видео собрано из материалов курса биолога Евгения Шеваля «Биология клетки». Расшифровки и дополнительные материалы читайте здесь — postnauka.ru/courses/17529

Евгений Шеваль доктор биологических наук, старший научный сотрудник НИИ физико-химической биологии имени А. Н. Белозерского МГУ

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"Вакцина от жира". Научное расследование Сергея Малозёмова


Мир охватила настоящая эпидемия ожирения. В репортажах из разных стран периодически можно увидеть людей весом и в 300, и в 400, и даже 500 килограммов. В чем причина? Почему население планеты…

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‎خطواتنا التي لا تصنعها الأقدام ,ولا تقاس بالمسافات… خطوات الإراده التي لا تقودنا أبداً إلى الوراء،،
إنها خطوات متابعنا الملهم — محمدين — و حديث من القلب في الطرق التي علينا ان نسلكها لأجل التمسك بالحياه وتغليب الإرادة على كل المعوقات…

Our steps, which are not made by feet nor measured by distances.
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Anxiety is one of most prevalent mental health disorders, with 1 out of 14 people around the world being likely affected. Leading up to conditions such as depression, increased risk for suicide, disability and requirement of high health services, very few people who often need treatment actually receive it. In her talk “How to cope with anxiety”, Olivia Remes of the University of Cambridge will share her vision on anxiety and will unravel ways to treat and manage this health disorder. Arguing that treatments such as psychotherapy and medication exist and often result in poor outcome and high rates of relapses, she will emphasise the importance of harnessing strength in ourselves as we modify our problem-coping mechanisms. Olivia will stress that by allowing ourselves to believe that what happens in life is comprehensive, meaningful, and manageable, one can significantly improve their risk of developing anxiety disorders.

Anxiety is one of most prevalent mental health disorders, with 1 out of 14 people around the world being likely affected. Leading up to conditions such as depression, increased risk for suicide, disability and requirement of high health services, very few people who often need treatment actually receive it. In her talk “How to cope with anxiety”, Olivia Remes of the University of Cambridge will share her vision on anxiety and will unravel ways to treat and manage this health disorder. Arguing that treatments such as psychotherapy and medication exist and often result in poor outcome and high rates of relapses, she will emphasise the importance of harnessing strength in ourselves as we modify our problem-coping mechanisms. At TEDxUHasselt 2017, Olivia will stress that by allowing ourselves to believe that what happens in life is comprehensive, meaningful, and manageable, one can significantly improve their risk of developing anxiety disorders.

This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at ted.com/tedx

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In the spirit of ideas worth spreading, TEDx is a program of local, self-organized events that bring people together to share a TED-like experience. At a TEDx event, TEDTalks video and live speakers combine to spark deep discussion and connection in a small group. These local, self-organized events are branded TEDx, where x = independently organized TED event. The TED Conference provides general guidance for the TEDx program, but individual TEDx events are self-organized.* (*Subject to certain rules and regulations)

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25 Chemistry Experiments in 15 Minutes | Andrew Szydlo | TEDxNewcastle


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In his talk, Andrew aims to promote chemistry as the science of remarkable changes, which are often overlooked yet so important in our everyday life. And he does it brilliantly by performing an incredible series of 25 experiments in 15 minutes, totally amazing the audience (who rewards him with a long and deserved standing ovation)!

Andrew Z. Szydło is an internationally acclaimed chemistry teacher. But he’s definitely not the typical chemistry teacher you would expect…

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A chance encounter with members of the Ku Klux Klan led black musician Daryl Davis on a quest to determine the source of the hate. His unorthodox, yet simple approach, has wielded surprising results and just might be the solution for all racial discourse.

Daryl Davis graduated from Howard University with a degree in Jazz. As a pianist, vocalist, and guitarist, he performs nationally and internationally with The Daryl Davis Band. He has also worked with such notables as Chuck Berry, Elvis Presley’s Jordanaires, The Legendary Blues Band, and many others.

In 1983, A chance occurrence after one of his performances led him to befriend a member of the Ku Klux Klan. This eventually led Daryl to become the first black author to travel the country interviewing KKK leaders and members, all detailed in his book, Klan-Destine Relationships. Today, Daryl owns numerous Klan robes and hoods, given to him by active members who became his friends and renounced the organization.

Since his journey began, Davis has joined an all-white country band, attended KKK rallies, and accepted a “certificate of friendship” from the Traditionalist American Knights of the KKK. He’s even the godfather of former Klan Imperial Wizard Roger Kelly’s granddaughter.

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Davis has received the Elliott-Black and MLK awards as well as numerous other local and national awards for his work in race relations, and is often sought by media outlets as a consultant on the KKK and race relations. He is also an actor with stage and screen credits, appearing in the critically acclaimed HBO police drama, The Wire, and most recently, as the subject of the documentary Accidental Courtesy, which filmed his real life encounters with Ku Klux Klan and neo-Nazi leaders as he helps to dismantle racism across the United States. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at www.ted.com/tedx