Vigyan Samachariki

John P. Moore, PhD, has studied antiviral antibodies and how vaccines can trigger their production for more than 30 years. He is a professor of microbiology and immunology  at Weill Cornell Medicine in New York City.  Melissa Cushing, MD, is the medical director of transfusion medicine and vice chair of laboratory medicine at New York-Presbyterian Hospital, Weill Cornell Campus. She is the principal investigator for the  New York Coordinating Center of CONCOR-1,  one of the largest Covid-19 convalescent plasma randomized clinical trials in the world. The opinions expressed in this commentary are the authors'. View more opinion on CNN. (CNN) The Food and Drug Administration's shocking decision this week to allow the use of Covid-19 convalescent plasma to treat sick patients  was by all appearances  motivated by a desire to appease President Donald Trump rather than on any serious consideration of the science. FDA Commissioner Stephen Hahn left the ...

कह रहा है मौज़ -ए -दरिया से समुन्दर का  सुकून जिस में जितना ज़र्फ़ है उतना ही वो खामोश है। कह रहा है शोर - ए-दरिया से समुन्दर का सुकूत , जिसका जितना ज़र्फ़ है उतना ही वो खामोश है ।                                    (नातिक़  लखनवी साहब ) The river's raging ........ मुस्तकिल बोलता ही रहा  हूँ , हम लबों से कह न पाए उन से हाल -ए-दिल कभी , और वो समझे नहीं ये ख़ामशी क्या चीज़ है।  शायरी :वो अपने ध्यान में बैठे अच्छे लगे हम को   कह रहा है  मौज  -ए -दरिया से  समन्दर  का सुकून , जिस में जितना ज़र्फ़ है उतना ही वो खामोश है . "ख़ामोशी शायरी के उम्दा शैर " Search Results Web results Top 20 Famous Urdu sher of Khamoshi Shayari | Rekhta kah  rahā hai shor-e-dariyā se  samundar  kā sukūt.  jis  kā jitnā  zarf  hai utnā  hī vo  ḳhāmosh hai. the river's ragin...

ITER's First Plasma is scheduled for December 2025. That will be the first time the machine is powered on, and the first act of ITER's multi-decade operational program. On a cleared, 42-hectare site in the south of France, building has been underway since 2010. The central Tokamak Building was handed over to the ITER Organization in March 2020 for the start of machine assembly. The first major event of this new phase was the installation of the 1,250-tonne  cryostat base  in  May 2020 . In the ITER offices around the world, the exact sequence of assembly events has been carefully orchestrated and coordinated. The successful integration and assembly of over one million components (ten million parts), built in the ITER Members' factories around the world and delivered to the ITER site constitutes a tremendous logistics and engineering challenge. The ITER Organization will be carrying out the work supported by a num...

The ITER Project is a globe-spanning collaboration of 35 nations. The ITER Members  China , the  European Union ,  India ,  Japan ,  Korea ,  Russia  and the  United States  have combined resources to conquer one of the greatest frontiers in science—reproducing on Earth the boundless energy that fuels the Sun and the stars. As signatories to the ITER Agreement, concluded in 2006, the seven Members will share of the cost of project construction, operation and decommissioning. They also share the experimental results and any intellectual property generated by the fabrication, construction and operation phases. Europe is responsible for the largest portion of construction costs (45.6 percent); the remainder is shared equally by China, India, Japan, Korea, Russia and the US (9.1 percent each). The Members deliver very little monetary contribution to the project: instead, nine-tenths of contributions will be delivered to the ITER Organizatio...

WHAT IS A TOKAMAK? Visualization courtesy of Jamison Daniel, Oak Ridge Leadership Computing Facility Power plants today rely either on fossil fuels, nuclear fission, or renewable sources like wind or water. Whatever the energy source, the plants generate electricity by converting mechanical power, such as the rotation of a turbine, into electrical power. In a coal-fired steam station, the combustion of coal turns water into steam and the steam in turn drives turbine generators to produce electricity. बिजली  उत्पादक संयंत्र (पावर प्लांट्स) वर्तमान में या तो जीववशेषी ईंधन (फॉसिल फ्यूल्स) से काम कर रहें हैं या संवर्धित विखंडनीय ईंधन फिसाइल मटेरियल से ,गैर -परम्परागत नवीनीकरण योग्य ऊर्जा स्रोत पवन ऊर्जा के साथ -साथ जल में समाहित ऊर्जा का भी दोहन कर पहले स्टीम (भाप) फिर भाप से एक पहिये को घुमाकर बिजली पैदा कर रहें हैं यांत्रिक ऊर्जा को विद्युत् ऊर्जा में रूपांतरित करके। फ्यूज़न पावर कल  तक दूर की कौड़ी फेंकने जैसा ही लगता था। हालात अब करवट ज़रूर ले रहें हैं ...

Fusion is the energy source of the Sun and stars. In the tremendous heat and gravity at the core of these stellar bodies, hydrogen nuclei collide, fuse into heavier helium atoms and release tremendous amounts of energy in the process. Twentieth-century fusion science identified the most efficient fusion reaction in the laboratory setting to be the reaction between two hydrogen isotopes, deuterium (D) and tritium (T). The DT fusion reaction produces the highest energy gain at the "lowest" temperatures. Three conditions must be fulfilled to achieve fusion in a laboratory: very high temperature (on the order of 150,000,000° Celsius); sufficient plasma particle density (to increase the likelihood that collisions do occur); and sufficient confinement time (to hold the plasma, which has a propensity to expand, within a defined volume). At extreme temperatures, electrons are separated from nuclei and a gas becomes a plasma—often referred to as the fourth state...