The antigen test is the third type of test to be authorized by the FDA.

A fire at a Moscow hospital treating people infected by the new coronavirus killed one patient and forced the evacuation of about 200 others.Also rea

Two expatriates test positive in Kerala; Karnataka focuses on Bengaluru cases

A select list of stories to read before you start your day

He wrote that whether the company keeps any manufacturing in Fremont depends on how Tesla is treated in the future.

The number of novel coronavirus cases recorded worldwide surpassed four million on Saturday, according to an AFP tally based on official sources, as o

The outbreak came just as South Korea has eased some social distancing restrictions and is seeking to fully reopen schools and businesses

Officials said they were stepping up safety protocols

Globally, as of 9 May 2020, there have been 3,862,676 confirmed cases, including 265,961 deaths, reported to WHO.

A fire broke out in a cardboard factory in outer Delhi’s Bawana on Sunday morning, Delhi Fire Service officials said. However, no one is trapped or in

Want services to resume only after at least three major airports in the country become functional

More private hospitals in the city are trying to acquire the advanced GeneXpert point-of-care testing system that can detect coronavirus in 45 minutes or less. The Indian Council of Medical Research (ICMR) had earlier approved the use of this US-grown rapid molecular diagnostic technology to detect Covid-19.

Pushkar has become a role model for keeping foreign tourists safe and not a single person has tested positive for Covid-19 in the last two months.

Two women, who tested positive for Covid-19 and residents of the containment zone in Padarayanapura, Bengaluru, gave birth to three babies on Saturday morning. A 20-year-old woman delivered twin babies at the Trauma Care Centre. On Friday, a 34-year-old woman gave birth to a girl. Both women underwent C-sections.

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Hyderabad International Airport facilitated the first arrival evacuation flight from Kuwait on Saturday.This is the first flight to Hyderabad and is p

Obama cast the US response to the virus as an outgrowth of tribalism as he sought to emphasise the urgency of the November election

'For the first time, I was seen in an overt romantic role.'

Bharti Airtel added Rs 8,537.95 crore to its m-cap to stand at Rs 2,89,144.54 crore

Pathan's statement came during an Instagram Live session with Suresh Raina.

The Bundesliga and Bundesliga 2 are set to be back underway on May 16.

In total, around 1,373 Indians returned to their native places from foreign countries on May 10 as eight 'Vande Bharat' flights from Dubai, Kuwait, Muscat, Sharjah, Kuala Lumpur, and Dhaka landed in India.

Maharashtra has the highest number of cases with around 20,228 positive cases of infection and 779 deaths.

Arti Singh remembered her first letter to mother on the occasion of Mothers' Day

Picture shows Sania and her son, wearing nightsuits all cuddled up in bed. Izhaan has a sweet smile on his face that can brighten anyone's day.

'Despite expanded testing the incidence remains low.' 'Therefore, the focus should be on specific districts where we need to improve the testing.' 'We should have a district-centric strategy.'

Three people, including two brothers running a narco terrorism network linked to Hizbul Mujahideen commander Naikoo, who was killed by security forces in Kashmir recently, were on Saturday arrested in a joint operation conducted by Haryana Police, National Investigation Agency (NIA) and Punjab Police.

'Despite expanded testing the incidence remains low.'

Small-animal physiology studies are typically complicated, but the level of complexity is greatly increased when performing live-animal X-ray imaging studies at synchrotron and compact light sources. This group has extensive experience in these types of studies at the SPring-8 and Australian synchrotrons, as well as the Munich Compact Light Source. These experimental settings produce unique challenges. Experiments are always performed in an isolated radiation enclosure not specifically designed for live-animal imaging. This requires equipment adapted to physiological monitoring and test-substance delivery, as well as shuttering to reduce the radiation dose. Experiment designs must also take into account the fixed location, size and orientation of the X-ray beam. This article describes the techniques developed to overcome the challenges involved in respiratory X-ray imaging of live animals at synchrotrons, now enabling increasingly sophisticated imaging protocols.

With the introduction of the multi-bend achromats in the new fourth-generation storage rings the emittance has decreased by an order of magnitude resulting in increased brightness. However, the higher brightness comes with smaller beam sizes and narrower radiation cones. As a consequence, the requirements on mechanical stability regarding the beamline components increases. Here an innovative five-axis parallel kinematic mirror unit for use with soft X-ray beamlines using off-axis grazing-incidence optics is presented. Using simulations and measurements from the HIPPIE beamline at the MAX IV Laboratory it is shown that it has no Eigen frequencies below 90 Hz. Its positioning accuracy is better than 25 nm linearly and 17–35 µrad angularly depending on the mirror chamber dimensions.

A portable IR fiber laser-heating system, optimized for X-ray emission spectroscopy (XES) and nuclear inelastic scattering (NIS) spectroscopy with signal collection through the radial opening of diamond anvil cells near 90°with respect to the incident X-ray beam, is presented. The system offers double-sided on-axis heating by a single laser source and zero attenuation of incoming X-rays other than by the high-pressure environment. A description of the system, which has been tested for pressures above 100 GPa and temperatures up to 3000 K, is given. The XES spectra of laser-heated Mg0.67Fe0.33O demonstrate the potential to map the iron spin state in the pressure–temperature range of the Earth's lower mantle, and the NIS spectra of laser-heated FeSi give access to the sound velocity of this candidate of a phase inside the Earth's core. This portable system represents one of the few bridges across the gap between laser heating and high-resolution X-ray spectroscopies with signal collection near 90°.

A new resonant inelastic X-ray scattering (RIXS) instrument has been constructed at beamline P01 of the PETRA III synchrotron. This instrument has been named IRIXS (intermediate X-ray energy RIXS) and is dedicated to X-rays in the tender-energy regime (2.5–3.5 keV). The range covers the L2,3 absorption edges of many of the 4d elements (Mo, Tc, Ru, Rh, Pd and Ag), offering a unique opportunity to study their low-energy magnetic and charge excitations. The IRIXS instrument is currently operating at the Ru L3-edge (2840 eV) but can be extended to the other 4d elements using the existing concept. The incoming photons are monochromated with a four-bounce Si(111) monochromator, while the energy analysis of the outgoing photons is performed by a diced spherical crystal analyzer featuring (102) lattice planes of quartz (SiO2). A total resolution of 100 meV (full width at half-maximum) has been achieved at the Ru L3-edge, a number that is in excellent agreement with ray-tracing simulations.

Possibilities in auxiliary technique combinations with small- and wide-angle X ray scattering are described, as well as more complicated sample environments used in X-ray and neutron scattering.

The X-ray structures of viruses and viral proteins currently available are providing high-resolution snapshots of viral molecular machineries, expanding our vision of the virus world and giving crucial information on potential targets for future antiviral therapies.