Cambridge, MA. : National Bureau of Economic Research, 2023

'I always gave my best, even to what people considered to be trashy content.'

Edmonton, Alberta : Brush Education Inc., [2023]

Former New York City Sanitation Commissioner Ed Grayson is here to answer the internet's burning questions about garbage. Where does garbage go after it's sent to the landfill? What happens if we run out of space in the landfills? Why do they still put garbage out on the streets in New York City? How does recycling ACTUALLY work? Ed answers all these questions and much more!

Every day New York City picks up 12,000 tons of refuse and recycling. How does all this trash go from the garbage can to its final destination? Former New York City Sanitation Commissioner Ed Grayson is here to explain.

Day two of advertising festival Goafest, saw Zeenat Aman share how she adapted to the mobile screen, the industry debating gender stereotyping in ads and more

100% recycling extends the useful life of glass, fights the problem of household trash, supports recyclers and transforms bottles into modern drinking glasses.

Here’s how to give used wrapping paper, scrapbooks and old newspapers new life, says Teja Lele Desai

The Indian shakes off the humbling loss in the semifinals, goes through the rigmarole of making the weight before dominating Puerto Rico’s Darian Toi Cruz for the 57kg bronze

Maharashtra Chief Minister accuses Congress of copying its flagship popular scheme ‘Mukhyamantri Majhi Ladki Bahin Yojana’ while announcing the five guarantees in Mumbai; welfare schemes of ruling alliance benefit everyone, he says

Chemists explore ways to convert plastics into valuable products and to develop intrinsically recyclable polymers

Approach dissolves adhesive polymers and recovers bags’ multiple components

Two Central Reserve Police Force personnel also sustained injuries during the heavy exchange of fire that happened at Jakurador Karong in the Borobekra sub-division, they said.

Lewis Library - ML3917.I8 S8 2018

Russian President Vladimir Putin marked Victory Day, the anniversary of the defeat of Nazi Germany in World War II, in a ceremony shorn of its usual military parade and pomp by the coronavirus pandemic.

and underlining sharp differences in approach between wealthy societies such as the United States and Europe.

This is a preview of our pop culture newsletter The Daily Beast’s Obsessed, written by senior entertainment reporter Kevin Fallon. To receive the full newsletter in your inbox each week, sign up for it here. 

This week: 

Adele shocked the world when she posted a photo on her birthday thanking fans for their nice messages and also taking the opportunity to honor front-line workers. In the photo, she had lost a significant amount of weight, and looked great. As if it was going to be left at that.

Read more at The Daily Beast.

Dear Sir


i want to know about the various provisions applicable under various statutes when the running sole proprietorship business is taken over by a EXISTING PRIVATE COMPANY WHERE THE DIRECTOR OF THE COMPANY IS THE PROPRIETOR OF THE BUSINESS WHICH IS BEING TAKENOVER. I ALSO WANT TO KNOW ABOUT THE MANNER OF DISCHARGING THE PURCHASE CONSIDERATION WHETHER THROUGH SHARES OR THROUGH CASH. AND IS THERE ANY CONDITION OR LEGAL REQUIREMENT ON SHARES ISSUED BY THE COMPANY. AND WHAT KIND OF RESOLUTION REQUIRED FOR THIS PURPOSE AND WHETHER IT IS REQUIRED TO INTIMATE ROC? PLZ REPLY SOON ITS URGENT.THANKS IN ADVANCE.

A new method based on time-resolved X-ray diffraction is proposed in order to measure the elastic strain and stress during ultrasonic fatigue loading experiments. Pure Cu was chosen as an example material for the experiments using a 20 kHz ultrasonic fatigue machine mounted on the six-circle diffractometer available at the DiffAbs beamline on the SOLEIL synchrotron facility in France. A two-dimensional hybrid pixel X-ray detector (XPAD3.2) was triggered by the strain gage signal in a synchronous data acquisition scheme (pump–probe-like). The method enables studying loading cycles with a period of 50 µs, achieving a temporal resolution of 1 µs. This allows a precise reconstruction of the diffraction patterns during the loading cycles. From the diffraction patterns, the position of the peaks, their shifts and their respective broadening can be deduced. The diffraction peak shift allows the elastic lattice strain to be estimated with a resolution of ∼10−5. Stress is calculated by the self-consistent scale-transition model through which the elastic response of the material is estimated. The amplitudes of the cyclic stresses range from 40 to 120 MPa and vary linearly with respect to the displacement applied by the ultrasonic machine. Moreover, the experimental results highlight an increase of the diffraction peak broadening with the number of applied cycles.

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

For the extraction of the best possible X-ray diffraction data from macromolecular crystals, accurate positioning of the crystals with respect to the X-ray beam is crucial. In addition, information about the shape and internal defects of crystals allows the optimization of data-collection strategies. Here, it is demonstrated that the X-ray beam available on the macromolecular crystallo­graphy beamline P14 at the high-brilliance synchrotron-radiation source PETRA III at DESY, Hamburg, Germany can be used for high-energy phase-contrast microtomography of protein crystals mounted in an optically opaque lipidic cubic phase matrix. Three-dimensional tomograms have been obtained at X-ray doses that are substantially smaller and on time scales that are substantially shorter than those used for diffraction-scanning approaches that display protein crystals at micrometre resolution. Adding a compound refractive lens as an objective to the imaging setup, two-dimensional imaging at sub-micrometre resolution has been achieved. All experiments were performed on a standard macromolecular crystallography beamline and are compatible with standard diffraction data-collection workflows and apparatus. Phase-contrast X-ray imaging of macromolecular crystals could find wide application at existing and upcoming low-emittance synchrotron-radiation sources.

Afamin, which is a human blood plasma glycoprotein, a putative multifunctional transporter of hydrophobic molecules and a marker for metabolic syndrome, poses multiple challenges for crystallographic structure determination, both practically and in analysis of the models. Several hundred crystals were analysed, and an unusual variability in cell volume and difficulty in solving the structure despite an ∼34% sequence identity with nonglycosylated human serum albumin indicated that the molecule exhibits variable and context-sensitive packing, despite the simplified glycosylation in insect cell-expressed recombinant afamin. Controlled dehydration of the crystals was able to stabilize the orthorhombic crystal form, reducing the number of molecules in the asymmetric unit from the monoclinic form and changing the conformational state of the protein. An iterative strategy using fully automatic experiments available on MASSIF-1 was used to quickly determine the optimal protocol to achieve the phase transition, which should be readily applicable to many types of sample. The study also highlights the drawback of using a single crystallographic structure model for computational modelling purposes given that the conformational state of the binding sites and the electron density in the binding site, which is likely to result from PEGs, greatly varies between models. This also holds for the analysis of nonspecific low-affinity ligands, where often a variety of fragments with similar uncertainty can be modelled, inviting interpretative bias. As a promiscuous transporter, afamin also seems to bind gadoteridol, a magnetic resonance imaging contrast compound, in at least two sites. One pair of gadoteridol molecules is located near the human albumin Sudlow site, and a second gadoteridol molecule is located at an intermolecular site in proximity to domain IA. The data from the co-crystals support modern metrics of data quality in the context of the information that can be gleaned from data sets that would be abandoned on classical measures.

Although microscopes and image-analysis software for electron cryomicroscopy (cryo-EM) have improved dramatically in recent years, specimen-preparation methods have lagged behind. Most strategies still rely on blotting microscope grids with paper to produce a thin film of solution suitable for vitrification. This approach loses more than 99.9% of the applied sample and requires several seconds, leading to problematic air–water interface interactions for macromolecules in the resulting thin film of solution and complicating time-resolved studies. Recently developed self-wicking EM grids allow the use of small volumes of sample, with nanowires on the grid bars removing excess solution to produce a thin film within tens of milliseconds from sample application to freezing. Here, a simple cryo-EM specimen-preparation device that uses components from an ultrasonic humidifier to transfer protein solution onto a self-wicking EM grid is presented. The device is controlled by a Raspberry Pi single-board computer and all components are either widely available or can be manufactured by online services, allowing the device to be constructed in laboratories that specialize in cryo-EM rather than instrument design. The simple open-source design permits the straightforward customization of the instrument for specialized experiments.

Different approaches of 2D lens arrays as Shack–Hartmann sensors for hard X-rays are compared. For the first time, a combination of Shack–Hartmann sensors for hard X-rays (SHSX) with a super-resolution imaging approach to perform multi-contrast imaging is demonstrated. A diamond lens is employed as a well known test object. The interleaving approach has great potential to overcome the 2D lens array limitation given by the two-photon polymerization lithography. Finally, the radiation damage induced by continuous exposure of an SHSX prototype with a white beam was studied showing a good performance of several hours. The shape modification and influence in the final image quality are presented.

A complete method of comprehensive and quantitative evaluation of through-silicon via reliability using a highly sensitive phase-contrast X-ray microtomography was established. Quantitative characterizations include 3D local morphology and overall consistency of statistics.

Phase-contrast enhanced micro-computed tomography reveals huge discontinuities at the interfaces between dental fillings and the tooth substrate. Despite the complex micromorphology, gaps in bonding could be visualized and quantified in 3D.

A method for reconstructing the three-dimensional grain structure from data collected with a recently introduced laboratory-based X-ray diffraction contrast tomography system is presented. Diffraction contrast patterns are recorded in Laue-focusing geometry. The diffraction geometry exposes shape information within recorded diffraction spots. In order to yield the three-dimensional crystallographic microstructure, diffraction spots are extracted and fed into a reconstruction scheme. The scheme successively traverses and refines solution space until a reasonable reconstruction is reached. This unique reconstruction approach produces results efficiently and fast for well suited samples.

By using small-angle neutron scattering (SANS) reinforced by scanning electron microscopy, the fine structure of catalysts for polymer electrolyte fuel cells has been investigated. The experimental data resulting from contrast variation with mixed light and heavy water (H2O/D2O) are well described by a core–shell model with fluctuations in concentration between water and Nafion.

The new study suggests that echolocation calls also serve a social function--bats listen to the ultrasonic calls of other bats to identify roost mates, bats of the same species, members of the opposite sex and intruders to their territory.

The post Scientists find ultrasonic calls of bats also serve a social function appeared first on Smithsonian Insider.