Forwarded from Sitpor.org سیتپـــــور
Media is too big
VIEW IN TELEGRAM
فیزیک حیرتآور ماسکهای n95
ماسکهای n95 یکی از موثرترین ماسکها برای جلوگیری از عبور قطرات حامل ویروس #کرونا هستند. این ماسکها با طراحی هوشمندانهای سبب میشوند که ذرات با اندازههای مختلف از آنها عبور نکنند؛ طراحی که پر است از نکتههای فیزیکی! این شما و این ویدیو «فیزیک حیرتآور ماسکهای n95» که توسط one minute physics ساخته شده. ویدیو زیرنویس فارسی دارد. برای دیدن نسخههای مختلف به لینک زیر سر بزنید:
🔗 sitpor.org/2020/08/n95masks/
🎞 @sitpor
ماسکهای n95 یکی از موثرترین ماسکها برای جلوگیری از عبور قطرات حامل ویروس #کرونا هستند. این ماسکها با طراحی هوشمندانهای سبب میشوند که ذرات با اندازههای مختلف از آنها عبور نکنند؛ طراحی که پر است از نکتههای فیزیکی! این شما و این ویدیو «فیزیک حیرتآور ماسکهای n95» که توسط one minute physics ساخته شده. ویدیو زیرنویس فارسی دارد. برای دیدن نسخههای مختلف به لینک زیر سر بزنید:
🔗 sitpor.org/2020/08/n95masks/
🎞 @sitpor
NeurIPS2020 workshop on 'Topological Data Analysis & Beyond' is open for submissions now:
https://t.co/4KhsCW0QXb
This is your chance to showcase work that combines #MachineLearning and #Topology.
https://t.co/4KhsCW0QXb
This is your chance to showcase work that combines #MachineLearning and #Topology.
OpenReview
NeurIPS 2020 Workshop TDA and Beyond
Welcome to the OpenReview homepage for NeurIPS 2020 Workshop TDA and Beyond
Graph Theory and Additive Combinatorics
This course examines classical and modern developments in graph theory and additive combinatorics, with a focus on topics and themes that connect the two subjects. The course also introduces students to current research topics and open problems.
https://ocw.mit.edu/courses/mathematics/18-217-graph-theory-and-additive-combinatorics-fall-2019
This course examines classical and modern developments in graph theory and additive combinatorics, with a focus on topics and themes that connect the two subjects. The course also introduces students to current research topics and open problems.
https://ocw.mit.edu/courses/mathematics/18-217-graph-theory-and-additive-combinatorics-fall-2019
The Biggest Ideas in the Universe | 23. Criticality and Complexity
https://www.aparat.com/v/X5nkF
https://www.aparat.com/v/X5nkF
آپارات - سرویس اشتراک ویدیو
The Biggest Ideas in the Universe | 23. Criticality and Complexity
This is Idea #23, " Criticality and Complexity." Having spend a lot of time on the basic ingredients of our universe, it's time to contemplate how they come together to make complex systems. The idea of critical behavior -- things happening at all spatial…
"2020 SIAM Conference on Mathematics of Data Science: A Meeting Goes Virtual"
(by Gitta Kutyniok, Ali Pinar, and Joel A. Tropp; in ):
https://t.co/K8QZHZJiHq
(by Gitta Kutyniok, Ali Pinar, and Joel A. Tropp; in ):
https://t.co/K8QZHZJiHq
SIAM News
2020 SIAM Conference on Mathematics of Data Science: A Meeting Goes Virtual
By Gitta Kutyniok, Ali Pinar, and Joel A. Tropp
The 21st century has been called the “age of data science,” since people now collect massive volumes of data on just about everything. This data facilitates new approaches to problems in science, technology…
The 21st century has been called the “age of data science,” since people now collect massive volumes of data on just about everything. This data facilitates new approaches to problems in science, technology…
💰 Interested in the physics of living matter and a highly interdisciplinary research environment? We have a number of open #postdoc positions. Details:
https://www.ds.mpg.de/3617867/job_full_offer_15201392
https://www.ds.mpg.de/3617867/job_full_offer_15201392
www.ds.mpg.de
Postdoctoral Researcher positions
In the Department of Living Matter Physics (LMP) we seek to fill a number of
Postdoctoral Researcher positions.
The Max Planck Institute for Dynamics and Self-Organization (MPI-DS) at Göttingen, Germany, is an international, interdisciplinary and collaborative…
Postdoctoral Researcher positions.
The Max Planck Institute for Dynamics and Self-Organization (MPI-DS) at Göttingen, Germany, is an international, interdisciplinary and collaborative…
"From the Ising model to Kitaev Chain — An introduction to topological phase transitions" (by Kartik Chhajed):
https://t.co/aWXsE5B3fi
https://t.co/aWXsE5B3fi
💰 #PhD positions in neuroscience! Fully-funded, interdisciplinary, Bachelor's or Master's students can apply! Either in Bonn, #Germany or in Jupiter, Florida (#USA). Join the International Max Planck Research School for Brain and Behavior!
Deadline: November 15
https://www.imprs-brain-behavior.org/admissions/application-info/
Deadline: November 15
https://www.imprs-brain-behavior.org/admissions/application-info/
☀️ در اینجا سعی کردهایم بر اساس هر شهری در ایران، اسامی اساتیدی که در حوزه سیستمهای پیچیده فعال هستند را جمع آوری کنیم. این فهرست به شما کمک میکند تا در شهرهای مختلف گروههایی که مشغول به پژوهش روی سیستمهای پیچیده هستند را پیدا کنید.
💥 پیشنهاد ما به همه این است که در مقطع ارشد و دکتری، انتخاب دانشگاه بر اساس اساتید و گروههای پژوهشی مورد نظر شما باشد. برای همین، قبل از انتخاب دانشگاهی، توجه کنید که در آن دانشگاه با چه کس یا کسانی قرار است کار کنید. حتما با دانشجویان فارغالتحصیل از آن مراکز صحبت کنید! ظاهر و باطن انسانها و گروههای پژوهشی گاهی بسیار متفاوت است.
💡 آیا باید دکتری بخوانم؟!
🔗 نوشتههایی برای ورود به گرایش فیزیک سیستمهای پیچیده
با آرزوی موفقیت برای همه دانشجویان عزیز
امیدواریم که در این شرایط سخت، شور و اشتیاق علم در شما زنده مانده باشد.
💥 پیشنهاد ما به همه این است که در مقطع ارشد و دکتری، انتخاب دانشگاه بر اساس اساتید و گروههای پژوهشی مورد نظر شما باشد. برای همین، قبل از انتخاب دانشگاهی، توجه کنید که در آن دانشگاه با چه کس یا کسانی قرار است کار کنید. حتما با دانشجویان فارغالتحصیل از آن مراکز صحبت کنید! ظاهر و باطن انسانها و گروههای پژوهشی گاهی بسیار متفاوت است.
💡 آیا باید دکتری بخوانم؟!
🔗 نوشتههایی برای ورود به گرایش فیزیک سیستمهای پیچیده
با آرزوی موفقیت برای همه دانشجویان عزیز
امیدواریم که در این شرایط سخت، شور و اشتیاق علم در شما زنده مانده باشد.
CCNSD
Iran Complex Systems' Society (ICSS) - CCNSD
Here is a list of faculties who work on complex systems in Iran, sorted by the cities: Tehran Isfahan Zanjan Shiraz Bushehr Ardabil
Complex Systems Studies pinned «☀️ در اینجا سعی کردهایم بر اساس هر شهری در ایران، اسامی اساتیدی که در حوزه سیستمهای پیچیده فعال هستند را جمع آوری کنیم. این فهرست به شما کمک میکند تا در شهرهای مختلف گروههایی که مشغول به پژوهش روی سیستمهای پیچیده هستند را پیدا کنید. 💥 پیشنهاد ما به همه…»
📰 Symmetry, selection rules and reduction to a bare-bones model
In this post, I will discuss Raman and IR selection rules in a very simple model that illustrates the essence of this way of thinking. Although this model is cartoonish, it contains the relevant symmetries that cut right to the physics of the problem. Along the way, I hope that a simple picture behind the selection rules arises!
https://thiscondensedlife.wordpress.com/2020/09/03/symmetry-selection-rules-and-reduction-to-a-bare-bones-model/
In this post, I will discuss Raman and IR selection rules in a very simple model that illustrates the essence of this way of thinking. Although this model is cartoonish, it contains the relevant symmetries that cut right to the physics of the problem. Along the way, I hope that a simple picture behind the selection rules arises!
https://thiscondensedlife.wordpress.com/2020/09/03/symmetry-selection-rules-and-reduction-to-a-bare-bones-model/
This Condensed Life
Symmetry, selection rules and reduction to a bare-bones model
When I was a graduate student, a group of us spent long hours learning group theory from scratch in effort to understand and interpret our experiments. One of our main goals back then was to unders…
Forwarded from انجمن علمی ژرفا
💡 از مجموعهارائههای علمی مدرسهی تابستانهی رستا: «پیچیدگی و فیزیک»
🎙 دکتر سامان مقیمی (دانشکدهی فیزیکِ دانشگاه شریف)
🕕 یکشنبه، ۱۶ شهریورماه؛ ساعت ۱۸
📍 vclass.ecourse.sharif.edu/ch/ss1
👤 User: ss1-guest
🔓 Pass: ss11342849
© @rastaiha
🆔 @Zharfa90
🎙 دکتر سامان مقیمی (دانشکدهی فیزیکِ دانشگاه شریف)
🕕 یکشنبه، ۱۶ شهریورماه؛ ساعت ۱۸
📍 vclass.ecourse.sharif.edu/ch/ss1
👤 User: ss1-guest
🔓 Pass: ss11342849
© @rastaiha
🆔 @Zharfa90
🌳 In a mixed-species forest, what keeps the species mixed?
http://bit-player.org/2020/questions-about-trees
http://bit-player.org/2020/questions-about-trees
#Postdoc position in Nonlinear Dynamics/Statistical Physics at Jacobs University Bremen, Germany
The project is on transient processes and rare events in complex systems, related to evolutionary game theory and heteroclinic dynamics. The focus is on the prediction of transient phenomena such as spatio-temporal pattern formation. Patterns range from temporal sequences of excitations in neural networks to self-organized spatial segregation and the formation
of temporary alliances between species in ecological or social systems, including extinction events, whose risk for occurrence should be analytically estimated. Possible applications refer in particular to cognitive dynamics, with transient heteroclinic processes being coupled and going on in parallel.
Very good programming skills and expertise with analytical calculations are required. Experience in bifurcation analyses and large deviation theory is desirable. The position is for 2 years with a possible start by the end of this year or earlier. https://www.jacobs-university.de/directory/meyer-ortmanns .
The project is on transient processes and rare events in complex systems, related to evolutionary game theory and heteroclinic dynamics. The focus is on the prediction of transient phenomena such as spatio-temporal pattern formation. Patterns range from temporal sequences of excitations in neural networks to self-organized spatial segregation and the formation
of temporary alliances between species in ecological or social systems, including extinction events, whose risk for occurrence should be analytically estimated. Possible applications refer in particular to cognitive dynamics, with transient heteroclinic processes being coupled and going on in parallel.
Very good programming skills and expertise with analytical calculations are required. Experience in bifurcation analyses and large deviation theory is desirable. The position is for 2 years with a possible start by the end of this year or earlier. https://www.jacobs-university.de/directory/meyer-ortmanns .
🦠💉 Key questions that researchers are trying to answer about #coronavirus reinfections:
👉How common is reinfection?
👉Are second infections more or less severe than the first?
👉What implications do reinfections have for #vaccine prospects?
https://t.co/mM0OqSY5EK
👉How common is reinfection?
👉Are second infections more or less severe than the first?
👉What implications do reinfections have for #vaccine prospects?
https://t.co/mM0OqSY5EK
Nature
Coronavirus reinfections: three questions scientists are asking
Second infections raise questions about long-term immunity to COVID-19 and the prospects for a vaccine.