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Monday, October 8, 2018

Nobel Prize in Chemistry 2018


Press release: The Nobel Prize in Chemistry 2018


English
English (pdf)
Swedish
Swedish (pdf)

Logo
3 October 2018
The Royal Swedish Academy of Sciences has decided to award the Nobel Prize in Chemistry 2018
with one half to
Frances H. ArnoldCalifornia Institute of Technology, Pasadena, USA
“for the directed evolution of enzymes”
and the other half jointly to
George P. Smith
University of Missouri, Columbia, USA
and
Sir Gregory P. Winter
MRC Laboratory of Molecular Biology, Cambridge, UK
“for the phage display of peptides and antibodies”

They harnessed the power of evolution

The power of evolution is revealed through the diversity of life. The 2018 Nobel Laureates in Chemistry have taken control of evolution and used it for purposes that bring the greatest benefit to humankind. Enzymes produced through directed evolution are used to manufacture everything from biofuels to pharmaceuticals. Antibodies evolved using a method called phage display can combat autoimmune diseases and in some cases cure metastatic cancer.
Since the first seeds of life arose around 3.7 billion years ago, almost every crevice on Earth has filled with different organisms. Life has spread to hot springs, deep oceans and dry deserts, all because evolution has solved a number of chemical problems. Life’s chemical tools – proteins – have been optimised, changed and renewed, creating incredible diversity.
This year’s Nobel Laureates in Chemistry have been inspired by the power of evolution and used the same principles – genetic change and selection – to develop proteins that solve mankind’s chemical problems.
One half of this year’s Nobel Prize in Chemistry is awarded to Frances H. Arnold. In 1993, she conducted the first directed evolution of enzymes, which are proteins that catalyse chemical reactions. Since then, she has refined the methods that are now routinely used to develop new catalysts. The uses of Frances Arnold’s enzymes include more environmentally friendly manufacturing of chemical substances, such as pharmaceuticals, and the production of renewable fuels for a greener transport sector.
The other half of this year’s Nobel Prize in Chemistry is shared by George P. Smith and Sir Gregory P. Winter. In 1985, George Smith developed an elegant method known as phage display, where a bacteriophage – a virus that infects bacteria – can be used to evolve new proteins. Gregory Winter used phage display for the directed evolution of antibodies, with the aim of producing new pharmaceuticals. The first one based on this method, adalimumab, was approved in 2002 and is used for rheumatoid arthritis, psoriasis and inflammatory bowel diseases. Since then, phage display has produced anti-bodies that can neutralise toxins, counteract autoimmune diseases and cure metastatic cancer.
We are in the early days of directed evolution’s revolution which, in many different ways, is bringing and will bring the greatest benefit to humankind.

Illustrations

The illustrations are free to use for non-commercial purposes. Attribute ”©Johan Jarnestad/The Royal Swedish Academy of Sciences”
(R)evolution (pdf)

Read more about this year’s prize

To read the text you need Acrobat Reader.


Frances H. Arnold, born 1956 in Pittsburgh, USA. Ph.D. 1985, University of California, Berkeley, USA. Linus Pauling Professor of Chemical Engineering, Bioengineering and Biochemistry, California Institute of Technology, Pasadena, USA.
http://fhalab.caltech.edu
George P. Smith, born 1941 in Norwalk, USA. Ph.D. 1970, Harvard University, Cambridge, USA. Curators’ Distinguished Professor Emeritus of Biological Sciences, University of Missouri, Columbia, USA.
http://biology.missouri.edu/people/?person=94
Sir Gregory P. Winter, born 1951 in Leicester, UK. Ph.D. 1976. University of Cambridge, UK. Research Leader Emeritus, MRC Laboratory of Molecular Biology, Cambridge, UK.
www2.mrc-lmb.cam.ac.uk/group-leaders/emeritus/greg-winter/
Prize amount: 9 million Swedish krona, with one half to Frances Arnold and the other half to be shared between George Smith and Gregory Winter.
Further information: www.kva.se and http://www.nobelprize.org
Press contact: Kajsa Waaghals, Press Officer, +46 70 878 67 63, kajsa.waaghals@kva.se
Expert:Sara Snogerup Linse, member of the Nobel Committee for Chemistry, +46 70 250 77 66, sara.linse@biochemistry.lu.se
The Royal Swedish Academy of Sciences, founded in 1739, is an independent organisation whose overall objective is to promote the sciences and strengthen their influence in society. The Academy takes special responsibility for the natural sciences and mathematics, but endeavours to promote the exchange of ideas between various disciplines.


Nobel Prize® is a registered trademark of the Nobel Foundation.

Nobel Prize in Physics 2018

Press release

Logo
2 October 2018
The Royal Swedish Academy of Sciences has decided to award the Nobel Prize in Physics 2018
“for groundbreaking inventions in the field of laser physics”
with one half to
Arthur Ashkin
Bell Laboratories, Holmdel, USA
“for the optical tweezers and their application to biological systems”
and the other half jointly to
Gérard Mourou
École Polytechnique, Palaiseau, France
University of Michigan, Ann Arbor, USA
and
Donna Strickland
University of Waterloo, Canada
“for their method of generating high-intensity, ultra-short optical pulses”

Tools made of light

The inventions being honoured this year have revolutionised laser physics. Extremely small objects and incredibly rapid processes are now being seen in a new light. Advanced precision instruments are opening up unexplored areas of research and a multitude of industrial and medical applications.
Arthur Ashkin invented optical tweezers that grab particles, atoms, viruses and other living cells with their laser beam fingers. This new tool allowed Ashkin to realise an old dream of science fiction – using the radiation pressure of light to move physical objects. He succeeded in getting laser light to push small particles towards the centre of the beam and to hold them there. Optical tweezers had been invented.
A major breakthrough came in 1987, when Ashkin used the tweezers to capture living bacteria without harming them. He immediately began studying biological systems and optical tweezers are now widely used to investigate the machinery of life.
Gérard Mourou and Donna Strickland paved the way towards the shortest and most intense laser pulses ever created by mankind. Their revolutionary article was published in 1985 and was the foundation of Strickland’s doctoral thesis.
Using an ingenious approach, they succeeded in creating ultrashort high-intensity laser pulses without destroying the amplifying material. First they stretched the laser pulses in time to reduce their peak power, then amplified them, and finally compressed them. If a pulse is compressed in time and becomes shorter, then more light is packed together in the same tiny space – the intensity of the pulse increases dramatically.
Strickland and Mourou’s newly invented technique, called chirped pulse amplification, CPA, soon became standard for subsequent high-intensity lasers. Its uses include the millions of corrective eye surgeries that are conducted every year using the sharpest of laser beams.
The innumerable areas of application have not yet been completely explored. However, even now these celebrated inventions allow us to rummage around in the microworld in the best spirit of Alfred Nobel – for the greatest benefit to humankind.

Read more about this year’s prize

To read the text you need Acrobat Reader.

Arthur Ashkin, born 1922 in New York, USA. Ph.D. 1952 from Cornell University, Ithaca, USA.
https://history.aip.org/phn/11409018.html
Gérard Mourouborn 1944 in Albertville, France. Ph.D. 1973.
https://www.polytechnique.edu/annuaire/en/users/gerard.mourou
Donna Strickland, born 1959 in Guelph, Canada. Ph.D. 1989 from University of Rochester, USA.
https://uwaterloo.ca/physics-astronomy/people-profiles/donna-strickland
Prize amount: 9 million Swedish krona, with one half to Arthur Ashkin and the other half to be shared between Gérard Mourou and Donna Strickland
Further information: 
www.kva.se and http://www.nobelprize.org
Press contact: 
Kajsa Waaghals, Press Officer, +46 70 878 67 63, kajsa.waaghals@kva.se
Experts: Anders Irbäck, +46 46 222 34 93, anders@thep.lu.se, and Mats Larsson, +46 8 553 786 47, ml@fysik.su.se, members of the Nobel Committee for Physics

The Royal Swedish Academy of Sciences, founded in 1739, is an independent organisation whose overall objective is to promote the sciences and strengthen their influence in society. The Academy takes special responsibility for the natural sciences and mathematics, but endeavours to promote the exchange of ideas between various disciplines.
Nobel Prize® is a registered trademark of the Nobel Foundation.

Saturday, September 1, 2018

Bank ATM usage precautions/ बैंक ATM उपयोग करते समय बरती जाने वाली सावधानी

Do’s and Don’ts of ATM transactions

Do’s
  • Conduct your ATM transactions in complete privacy, never let anyone see you entering your Personal Identification Number (ATM Password)
  • After completion of transaction ensure that welcome screen is displayed on ATM screen
  • Ensure your current mobile number is registered with the bank so that you can get alerts for all your transactions
  • Beware of suspicious movements of people around the ATM or strangers trying to engage you in conversation
  • Look for extra devices attached to the ATMs that looks suspicious
  • Inform the bank if the ATM/Debit card is lost or stolen, immediately, report if any unauthorised transaction
  • Check the transaction alert SMSs and bank statements regularly
  • If cash is not dispensed the ATM does not display “cash out” please report to the Bank on the number mentioned in the Notice Board
  • Immediately check your phone for SMS for debit amount
Don’ts
  • Do not write your PIN on the card, memorise your PIN number
  • Do not take help from strangers or handover your card to anyone for using it
  • Do not disclose your PIN to anyone, including bank employees and family members
  • Do not allow the card to go of your sight when you are making a payment
  • Avoid speaking on the mobile phone while you are transacting
ग्राहक - सावधान रहें एटीएम लेनदेन में

क्या करें

  • अपना एटीएम लेनदेन पूर्ण गोपनीयता से करें, अपनी व्यक्तिगत पहचान संख्या (एटीएम पासवर्ड) दर्ज करते हुए उसे कभी भी किसी भी व्यक्ति को न देखने दें।
  • लेनदेन पूर्ण होने के बाद यह सुनिश्चित करें कि एटीएम स्क्रीन पर वेलकम स्क्रीन दिखाई दे रही है।
  • सुनिश्चित करें कि आपका वर्तमान मोबाइल नम्बर बैंक के पास रजिस्टर्ड है जिससे आप अपने सभी लेनदेनों के लिए अलर्ट संदेश प्राप्त कर सकें
  • एटीएम के आसपास संदेहजनक लोगों की हलचल या आपको बातों में उलझाने वाले अजनबी व्यक्तियों से सावधान रहें।
  • एटीएम मशीनों से जुड़े हुए ऐसे अतिरिक्त यंत्रों को देखें जो संदेहस्पद दिखाई देते हों।
  • यदि एटीएम / डेबिट कार्ड गुम गया हो या चुरा लिया गया हो, तो इसकी सूचना तुरंत बैंक को दें, यदि कोई अनधिकृत लेनदेन हो, तो उसे रिपोर्ट करें।
  • लेनदेन संबंधी अलर्ट एसएमएस और बैंक विवरणों की नियमित रूप से जाँच करें।
  • यदि नकदी संवितरित नहीं की गई हो और एटीएम में “नकदी खत्म”/”cash out” दर्शाया नहीं गया हो, तो नोटिस बोर्ड पर लिखे टेलीफोन नम्बर पर उसकी सूचना दें।
  • आपके खाते से राशि डेबिट करने के लिए फोन पर आए एसएमएस की तुरंत जाँच करें।
क्या न करें 
  • कार्ड पर अपना पिन नम्बर न लिखें, अपना पिन नम्बर याद रखें।
  • अजनबी व्यक्तियों की सहायता न लें। कार्ड का उपयोग करने के लिए अपना कार्ड किसी भी व्यक्ति को न दें। 
  • बैंक कर्मचारियों एवं परिवार के सदस्यों सहित अपना पिन किसी भी व्यक्ति को न बताएं।
  • जब आप भुगतान कर रहे हों, तब कार्ड को अपनी नजरों से दूर न होने दें।
  • लेनदेन करते समय, आप मोबाइल फोन पर बात न करें।

Friday, July 27, 2018

एक विनम्र निवेदन -- Part-II

एक विनम्र निवेदन -- Part-II

https://cscagim.blogspot.in/…/cyber-security-tips-in-hindi.… 
लिंक के बारे में मैंने पार्ट-3 में बताया था उसे एक उदाहरण से समझाना चाहता हूँ ऊपर लिखा लिंक मेरे SCIENCE BLOG का है, इसमें वेबसाइट/या ब्लाग का पता पहले होता है https://cscagim.blogspot.in/ 
फिर वर्ष /2018/ 
फिर पोस्ट संख्या /05/ 
फिर पोस्ट का शिर्षक /cyber-security-tips-in-hindi/ 
उसके बाद (.)से अलग करके html [यह सामान्यत: पेज जिस कंप्यूटर प्रोग्रामिंग भाषा में लिखी गई है उसका द्योतक होता है] (citation needed)..
उम्मीद है यह विवरण तथ्यों को समझने में सहायक होगा ।
.....नीलाम्बर .......

Tuesday, July 10, 2018

Whatsapp appeal in major newspaper

whatsapp की समाचार पत्रों में छपी  अपील