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Messages - omarsharif

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Thanks for sharing

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Applied Maths / A faster method for multiplying very big numbers
« on: July 07, 2019, 05:12:47 PM »
The multiplication of integers is a problem that has kept mathematicians busy since Antiquity. The "Babylonian" method we learn at school requires us to multiply each digit of the first number by each digit of the second one. But when both numbers have a billion digits each, that means a billion times a billion or 1018 operations.
At a rate of a billion operations per second, it would take a computer a little over 30 years to finish the job. In 1971, the mathematicians Schönhage and Strassen discovered a quicker way, cutting calculation time down to about 30 seconds on a modern laptop. In their article, they also predicted that another algorithm—yet to be found—could do an even faster job. Joris van der Hoeven, a CNRS researcher from the École Polytechnique Computer Science Laboratory LIX, and David Harvey from the University of New South Wales (Australia) have found that algorithm.

They present their work in a new article that is available to the scientific community through the online HAL archive. But one problem raised by Schönhage et Strassen remains to be solved: proving that no quicker method exists. This poses a new challenge for theoretical computer science.

https://phys.org/news/2019-04-faster-method-big.html

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Many ways to approach the Riemann Hypothesis have been proposed during the past 150 years, but none of them have led to conquering the most famous open problem in mathematics. A new paper in the Proceedings of the National Academy of Sciences (PNAS) suggests that one of these old approaches is more practical than previously realized.


https://phys.org/news/2019-05-mathematicians-revive-abandoned-approach-riemann.html

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Science and Information / A Valuable Lesson For A Happier Life
« on: July 03, 2019, 09:35:33 AM »
This is by far one of the most valuable lessons for a happier life. After reading the story by  Steven Covey I decided to produce this  video to share the message with others. Get inspired with this short film of a professor explaining to his class the importance of using one's time wisely and setting priorities in order to have a fulfilling life.

Please Watch this : https://youtu.be/SqGRnlXplx0

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Informative

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Thanks for sharing..

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Essential!

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In a new paper published in the journal Proceedings of the National Academy of Sciences (PNAS), "A hypothesis linking the energy demand of the brain to obesity risk," co-authors Christopher Kuzawa of Northwestern University and Clancy Blair of New York University School of Medicine, propose that variation in the energy needs of brain development across kids -- in terms of the timing, intensity and duration of energy use -- could influence patterns of energy expenditure and weight gain.

"We all know that how much energy our bodies burn is an important influence on weight gain," said Kuzawa, professor of anthropology in the Weinberg College of Arts and Sciences and a faculty fellow with the Institute for Policy Research at Northwestern. "When kids are 5, their brains use almost half of their bodies' energy. And yet, we have no idea how much the brain's energy expenditure varies between kids. This is a huge hole in our understanding of energy expenditure."

"A major aim of our paper is to bring attention to this gap in understanding and to encourage researchers to measure the brain's energy use in future studies of child development, especially those focused on understanding weight gain and obesity risk."

According to the authors, another important unknown is whether programs designed to stimulate brain development through enrichment, such as preschool programs like Head Start, might influence the brain's pattern of energy use.

"We believe it plausible that increased energy expenditure by the brain could be an unanticipated benefit to early child development programs, which, of course, have many other demonstrated benefits," Kuzawa said. "That would be a great win-win."

This new hypothesis was inspired by Kuzawa and his colleagues' 2014 study showing that the brain consumes a lifetime peak of two-thirds of the body's resting energy expenditure, and almost half of total expenditure, when kids are five years old. This study also showed that ages when the brain's energy needs increase during early childhood are also ages of declining weight gain. As the energy needed for brain development declines in older children and adolescents, the rate of weight gain increases in parallel.

"This finding helped confirm a long-standing hypothesis in anthropology that human children evolved a much slower rate of childhood growth compared to other mammals and primates in part because their brains required more energy to develop," Kuzawa said.


Source :: https://www.sciencedaily.com/releases/2019/06/190617164629.htm

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Summary:: Cerebral organoids are artificially grown, 3D tissue cultures that resemble the human brain. Now, researchers report success with functional neural networks derived from these organoids. Although the organoids aren't actually 'thinking,' the researchers' new tool -- which detects neural activity using organoids -- could provide a method for understanding human brain function.


Source: https://www.sciencedaily.com/releases/2019/06/190627113945.htm

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Dear all,

We are pleased to organise the International Youth Development Conference 2019, themed 'Evolving Roles of Youths: Global Talent Mobility', from 27th to 28th July 2019 at UTAR, Kampar Campus. You are cordially invited to the conference.

Aim:

Preparing our Youths to be ready global citizens and to embrace talent mobility.

Objectives:

1. To enable Youths to identify beliefs, values and behaviours that form individual and community identities and the basis for respectful relationships.
2. To enable our Youths to reinforce diverse learning and extend their international perspective.
3. To build awareness on identifying and challenging unjust practices in local and global systems.
4. To encourage participating students to be socially conscious and caring global citizens.

This conference will be held for two days, which include talks, workshops and forum by prominent speakers / trainers sharing their valuable experience and knowledge. Thus, through a series of an active learning process, student engagement can be promoted and strengthened effectively.

Attached are the details of the conference together with the registration form. If you have any further enquiries, please do not hesitate to contact us at 05-46888 88 (2282/2300) or email to iydc.kpr@utar.edu.my

Please submit your registration form and a photocopy of bank-in slip to the Department of Student Affairs before 15 July 2019.

A confirmation of registration will be given to you after the payment is made.

IYDC Website: http://iydc2019.event.utar.edu.my

Department of Student Affairs
Department of Soft Skills Competency
Kampar Campus 

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Excellent sharing ...

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 :)Great job!

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