Only those Indian nationals who show no signs of contracting the coronavirus infection and have been stranded in the US due to the lockdown are allowed to board the first repatriation flight of Air India from San Francisco to Mumbai and Hyderabad on Saturday. Over 10,000 registrations were recieved. People travelling under compelling circumstances were prioritised.

Former Patriots linebacker Rob Ninkovich explained why veteran quarterback Brian Hoyer will be very important to New England's offense in 2020.

Heavy security has also been put in place at the Chepauk area ahead of the protest as protesters proposed to lay siege to the Secretariat and the District Collector's office against the Citizenship Amendment Act.

A while ago, I was wondering how exactly one triggers HTML5’s XML mode — let’s call it XHTML5 from now on. You know, just out of curiosity. I’ll always prefer HTML over XHTML because it’s much less verbose and I like to keep things simple.

Did you know var π = Math.PI; is syntactically valid JavaScript? I thought this was pretty cool, so I decided to look into which Unicode glyphs are allowed in JavaScript variable names, or identifiers as the ECMAScript specification calls them.

ES2015 updates the grammar for identifiers. This affects a number of things, but most importantly, identifiers can be used as variable names, and identifier names are valid unquoted property names. This post describes the observable changes compared to the old ES5 behavior.

The first flight will be from San Francisco to Mumbai and Hyderabad on Saturday with 200 passengers on board

Chiulon reaches Manchuria

Newborns have been separated from mothers and kept under isolation

Cyanobacteria survive in one of the harshest environments on Earth by mining water from the rocks they live on

September 29, 2015

Paying roadway tolls is a taxing experience by its very nature. And while the frustration of waiting in line to throw a handful of coins into a basket has been mitigated by the implementation of RFID transponders that let people pay fees without stopping, replenishing funds on online can start to feel purgatorial in its own right.

As reader Ben Mackie points out: "The North Carolina toll website is maddening. They give you five different dollar amounts and they don't store your CC/preferred payment method"

This is already confusing

...read more
By Josh Tyson | UX Magazine

US PGA's Memorial to track fans to maintain COVID-19 social distancing

Gas leak fallout: CPCB asks industrial units across India to go for safety and hazard audit before resuming operations

A man was arrested for allegedly creating ruckus and damaging a police vehicle in an inebriated state in east Delhi’s Kalyanpuri, the police said on S

They are set to arrive at Kochi port today

Passengers showing Covid-19 symptoms are being disembarked first, followed by others in small groups, district-wise, says a Cochin Port Trust official

This is the Indian Navy’s first massive evacuation exercise during the Covid-19 lockdown

Two in situ `nanoreactors' for high-resolution imaging of catalysts have been designed and applied at the hard X-ray nanoprobe endstation at beamline P06 of the PETRA III synchrotron radiation source. The reactors house samples supported on commercial MEMS chips, and were applied for complementary hard X-ray ptychography (23 nm spatial resolution) and transmission electron microscopy, with additional X-ray fluorescence measurements. The reactors allow pressures of 100 kPa and temperatures of up to 1573 K, offering a wide range of conditions relevant for catalysis. Ptychographic tomography was demonstrated at limited tilting angles of at least ±35° within the reactors and ±65° on the naked sample holders. Two case studies were selected to demonstrate the functionality of the reactors: (i) annealing of hierarchical nanoporous gold up to 923 K under inert He environment and (ii) acquisition of a ptychographic projection series at ±35° of a hierarchically structured macroporous zeolite sample under ambient conditions. The reactors are shown to be a flexible and modular platform for in situ studies in catalysis and materials science which may be adapted for a range of sample and experiment types, opening new characterization pathways in correlative multimodal in situ analysis of functional materials at work. The cells will presently be made available for all interested users of beamline P06 at PETRA III.

Efficient sample delivery is an essential aspect of serial crystallography at both synchrotrons and X-ray free-electron lasers. Rastering fixed target chips through the X-ray beam is an efficient method for serial delivery from the perspectives of both sample consumption and beam time usage. Here, an approach for loading fixed targets using acoustic drop ejection is presented that does not compromise crystal quality, can reduce sample consumption by more than an order of magnitude and allows serial diffraction to be collected from a larger proportion of the crystals in the slurry.

Detection of heavy elements, such as metals, in macromolecular crystallography (MX) samples by X-ray fluorescence is a function traditionally covered at synchrotron MX beamlines by silicon drift detectors, which cannot be used at X-ray free-electron lasers because of the very short duration of the X-ray pulses. Here it is shown that the hybrid pixel charge-integrating detector JUNGFRAU can fulfill this function when operating in a low-flux regime. The feasibility of precise position determination of micrometre-sized metal marks is also demonstrated, to be used as fiducials for offline prelocation in serial crystallography experiments, based on the specific fluorescence signal measured with JUNGFRAU, both at the synchrotron and at SwissFEL. Finally, the measurement of elemental absorption edges at a synchrotron beamline using JUNGFRAU is also demonstrated.

Serial synchrotron crystallography (SSX) is an emerging technique for static and time-resolved protein structure determination. Using specifically patterned silicon chips for sample delivery, the `hit-and-return' (HARE) protocol allows for efficient time-resolved data collection. The specific pattern of the crystal wells in the HARE chip provides direct access to many discrete time points. HARE chips allow for optical excitation as well as on-chip mixing for reaction initiation, making a large number of protein systems amenable to time-resolved studies. Loading of protein microcrystals onto the HARE chip is streamlined by a novel vacuum loading platform that allows fine-tuning of suction strength while maintaining a humid environment to prevent crystal dehydration. To enable the widespread use of time-resolved serial synchrotron crystallography (TR-SSX), detailed technical descriptions of a set of accessories that facilitate TR-SSX workflows are provided.

This paper presents a deep learning algorithm for tomographic reconstruction (GANrec). The algorithm uses a generative adversarial network (GAN) to solve the inverse of the Radon transform directly. It works for independent sinograms without additional training steps. The GAN has been developed to fit the input sinogram with the model sinogram generated from the predicted reconstruction. Good quality reconstructions can be obtained during the minimization of the fitting errors. The reconstruction is a self-training procedure based on the physics model, instead of on training data. The algorithm showed significant improvements in the reconstruction accuracy, especially for missing-wedge tomography acquired at less than 180° rotational range. It was also validated by reconstructing a missing-wedge X-ray ptychographic tomography (PXCT) data set of a macroporous zeolite particle, for which only 51 projections over 70° could be collected. The GANrec recovered the 3D pore structure with reasonable quality for further analysis. This reconstruction concept can work universally for most of the ill-posed inverse problems if the forward model is well defined, such as phase retrieval of in-line phase-contrast imaging.

An expectation maximization algorithm is implemented to resolve the indexing ambiguity which arises when merging data from many crystals in protein crystallography, especially in cases where partial reflections are recorded in serial femtosecond crystallography (SFX) at XFELs.

This feature article reviews the control and understanding of nanoparticle shape from their crystallography and growth. Particular emphasis is placed on systems relevant for plasmonics and catalysis.

Fast trashion: Exhibition of garments made from street-litter opens at Imperial | Imperial News  Imperial College London

Earth's North Magnetic Pole Keeps Drifting towards Siberia, Latest World Magnetic Model Shows | Geophysics, Geoscience  Sci-News.com

Researchers Describe Why Earth's Magnetic North Pole Is Straying Away From Canada Towards Siberia  The Digital Wise

Scientists Explain Why Earth’s Magnetic North Pole Is Drifting Away From Canada Towards Siberia  Mashable India