Five more cases linked to Koyambedu market detected

State records 31 new COVID-19 cases

The GHMC is taking up a novel initiative to eradicate mosquitoes and larvae ahead of the monsoon, whereby every Sunday, citizens will be encouraged t

Total fatalities stand at 3,739, while infections number 137,115. According to figures posted on Twitter by Health Minister Fahrettin Koca, 89,480 patients have recovered.

Another 1,083 people tested positive, half of them in hard-hit Lombardy, bringing Italy’s confirmed number of cases to 218,268.

CSMIA gears up to welcome Indians stranded in foreign countries; four flights to land today

CM has assured safe passage for migrant workers, says Sharad Pawar

Brazil, the hardest-hit Latin American country in the coronavirus pandemic, has surpassed 10,000 deaths, according to figures released Saturday by th

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

Autor: Mitterwieser, Alois
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The association has written a letter to Minister of Housing and Urban Affairs Hardeep Singh Puri seeking his intervention in the matter

Under the PM-KISAN (Pradhan Mantri Kisan Samman Nidhi) scheme, each farmer gets Rs 6,000 in a year in three equal installments directly in bank account

An alert loco driver of a goods train saved the lives of at least 20 migrant workers by applying the emergency brakes and halting the train just 100 metres away from them near Pune on Friday evening. The migrants were walking on the tracks between the Uruli and Loni stations. The incident happened barely 14 hrs after 16 migrants were killed on Aurangabad tracks.

However, the company says it does not have the urgency to begin production in the factory, but bring back the rhythm of the manufacturing unit.

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To link countries where no Indian carrier presently flies

Maharashtra tops the tally with 779 deaths

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

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

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

Of the 2,109 fatalities, Maharashtra tops the tally with 779 deaths. Gujarat comes second with 472 deaths, followed by Madhya Pradesh at 215, West Bengal at 171, Rajasthan at 106, Uttar Pradesh at 74, Delhi at 73, and Andhra Pradesh and Tamil Nadu at 44.

The UT excise and taxation department has extended the excise policy from May 15 to June 30 due to the Covid-19 pandemic and the ongoing lockdown.

Mineral inclusions in natural diamond are widely studied for the insight that they provide into the geochemistry and dynamics of the Earth's interior. A major challenge in achieving thorough yet high rates of analysis of mineral inclusions in diamond derives from the micrometre-scale of most inclusions, often requiring synchrotron radiation sources for diffraction. Centering microinclusions for diffraction with a highly focused synchrotron beam cannot be achieved optically because of the very high index of refraction of diamond. A fast, high-throughput method for identification of micromineral inclusions in diamond has been developed at the GeoSoilEnviro Center for Advanced Radiation Sources (GSECARS), Advanced Photon Source, Argonne National Laboratory, USA. Diamonds and their inclusions are imaged using synchrotron 3D computed X-ray microtomography on beamline 13-BM-D of GSECARS. The location of every inclusion is then pinpointed onto the coordinate system of the six-circle goniometer of the single-crystal diffractometer on beamline 13-BM-C. Because the bending magnet branch 13-BM is divided and delivered into 13-BM-C and 13-BM-D stations simultaneously, numerous diamonds can be examined during coordinated runs. The fast, high-throughput capability of the methodology is demonstrated by collecting 3D diffraction data on 53 diamond inclusions from Juína, Brazil, within a total of about 72 h of beam time.

A fabrication method comprising near-field holography (NFH) with an electron beam lithography (EBL)-written phase mask was developed to fabricate soft X-ray varied-line-spacing gratings (VLSGs). An EBL-written phase mask with an area of 52 mm × 30 mm and a central line density greater than 3000 lines mm−1 was used. The introduction of the EBL-written phase mask substantially simplified the NFH optics for pattern transfer. The characterization of the groove density distribution and diffraction efficiency of the fabricated VLSGs indicates that the EBL–NFH method is feasible and promising for achieving high-accuracy groove density distributions with corresponding image properties. Vertical stray light is suppressed in the soft X-ray spectral range.

A multi-color light source is a significant tool for nonlinear optics experiments, pump–dump/repump–probe experiments and in other fields. Here, a novel method is proposed to create three-color pulses based on a high-gain harmonic-generation (HGHG) free-electron laser with a tilted electron bunch. In this method, the initial bunch tilt is created by transverse wakefields after the bunch passes through a corrugated structure with an off-axis orbit, and is further enlarged in a following drift section. Then the tilted bunch experiences the off-axis field of a quadrupole magnet to cool down the large transverse velocity induced before. After that, it enters an HGHG configuration adopting a transverse gradient undulator (TGU) as the radiator, where only three separated fractions of the tilted bunch will resonate at three adjacent harmonics of the seed wavelength and are enabled to emit three-color pulses simultaneously. In addition, the use of the natural transverse gradient of a normal planar undulator instead of the TGU radiator to emit three-color pulses is also studied in detail. Numerical simulations including the generation of the tilted bunch and the free-electron laser radiation confirm the validity and feasibility of this scheme both for the TGU radiator and the natural gradient in the extreme-ultraviolet waveband.

Nanoparticles are essential electrocatalysts in chemical production, water treatment and energy conversion, but engineering efficient and specific catalysts requires understanding complex structure–reactivity relations. Recent experiments have shown that Bragg coherent diffraction imaging might be a powerful tool in this regard. The technique provides three-dimensional lattice strain fields from which surface reactivity maps can be inferred. However, all experiments published so far have investigated particles an order of magnitude larger than those used in practical applications. Studying smaller particles quickly becomes demanding as the diffracted intensity falls. Here, in situ nanodiffraction data from 60 nm Au nanoparticles under electrochemical control collected at the hard X-ray nanoprobe beamline of MAX IV, NanoMAX, are presented. Two-dimensional image reconstructions of these particles are produced, and it is estimated that NanoMAX, which is now open for general users, has the requisites for three-dimensional imaging of particles of a size relevant for catalytic applications. This represents the first demonstration of coherent X-ray diffraction experiments performed at a diffraction-limited storage ring, and illustrates the importance of these new sources for experiments where coherence properties become crucial.