The Linac Coherent Light Source in California fired an X-ray pulse that lasted only a few hundred billionths of a billionth of a second but carried nearly a terawatt of power

Title: Electrical Pulses to Scalp May Boost Memory: Study
Category: Health News
Created: 8/28/2014 2:36:00 PM
Last Editorial Review: 8/29/2014 12:00:00 AM

Title: Could Electrode 'Pulses' Cut Back, Leg Pain Without Drugs?
Category: Health News
Created: 8/26/2021 12:00:00 AM
Last Editorial Review: 8/27/2021 12:00:00 AM

Popular weight-loss medications including Ozempic and Wegovy contain a drug that seems to decrease cravings for food and drugs – and now there’s evidence that it might make exercise less rewarding, too

Introducing CEB�s Global Talent Monitor

Learn how including beans and pulses in the American diet can improve nutrition deficiency and diet patterns.

The Hero XPulse 210 will make its much-awaited debut today at EICMA. However, it was just yesterday when the official teasers of the motorcycle surfaced on social media, showing the audience what to expect with the new model. The XPulse 210,

Hero Motocorp, the world's largest two-wheeler manufacturer has revealed the all-new XPulse 210 at EICMA 2024, the 110th anniversary of the motorcycle show in Milan, Italy. The Hero XPulse 210 features a larger 210cc engine along with quite a few more

The Hero Xpulse 210, recently unveiled at EICMA 2024, is equipped with a liquid-cooled engine from the Karizma XMR. This marks a significant shift from the air/oil-cooled engine used in the Xpulse for 5 years. Alongside this off-roader, Hero introduced the

Hero MotoCorp has unveiled the new Xpulse 210 at EICMA 2024, showcasing a slightly modified engine from the Karizma XMR 210. This model is expected to be sold alongside the existing Xpulse 200 4V. Let's explore how these two models differ

Chennai accounted for nearly 21% of the non-vaccinated children, highlighting the gaps in an urban area and the need for targeted community outreach

Vegetable prices may cool next month onwards, but dal prices pose a fresh worry

Production of pulses, some coarse cereals and groundnut seen likely hitting a 3-year low as per initial independent crop estimates; rice, cereals seen buoying overall output this season

The Cooperation Minister said that before the sowing operation, tur farmers can register on the portal to sell their produce to NAFED and NCCF

In value terms, imports in the year jumped 93% to $3.75 billion

National Bureau of Economic Research

The shifting from pulses and cash crops towards stable paddy and maize has thrown challenges before policy makers on how to align the crop pattern as per the country’s needs

Trade sees no impact on prices in near term due to imports

Area under paddy this year surged to record 43.37 million hectares (mh) from 40.73 mh year-ago.

Where is the Bengaluru market heading to? What are the factors that could help bring down the unsold inventory?

Direct interventions through retail sale of basic food items such as rice, atta, dal and onion have helped maintain a stable price regime, Union Consumer Affairs and Food Minister Pralhad Joshi said

PlayStation India new Pulse Explore wireless earbuds and Pulse Elite wireless headset will be available across online and offline stores

Abarth 595 Competizione has style, roaring speed and powerful engine

Hero MotoCorp has removed three 200cc bikes from its official India website. Is it a permanent discontinuation or a temporary one? We explain!

In addition to the prizes and rewards, Hero MotoCorp may also make it a memorable experience for the participants by putting some of the entries into production.

Hero MotoCorp has confirmed through its official website that BS6 versions of the XPulse 200T and Xtreme 200R are coming soon. No word on BS6 Xtreme 200R yet.

If you are in the process of circling in on what to buy, we're listing some here expected to launch in May - starting from Hero Xtreme 160R streetfighter to Ducati Panigale V2.

The Hero Xpulse T is supposed to be a road going tourer version but here is the catch behind this motorcycle.

This Metasploit module exploits a stack buffer overflow in Disk Pulse Enterprise 9.0.34. If a malicious user sends a malicious HTTP login request, it is possible to execute a payload that would run under the Windows NT AUTHORITYSYSTEM account. Due to size constraints, this module uses the Egghunter technique.

This Metasploit module exploits an SEH buffer overflow in Disk Pulse Enterprise version 9.9.16. If a malicious user sends a crafted HTTP GET request it is possible to execute a payload that would run under the Windows NT AUTHORITYSYSTEM account.

The UK’s PF2 model has had a tough upbringing; launched in the wake of a constricted pipeline of PFI projects, the Government knew it faced a tough task – trying to appeal to diverse funding sources whilst increasing transparency and public value. T...

The singer, 33, took the extra time at home to sunbathe topless in her garden, and shared a snap with fans via Instagram on Saturday.

The Love Island star, 28, looked sensational in her snap that she shared to Instagram on Saturday.

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.

The time evolution of the electron density and the resulting time dependence of the X-ray polarizability of a crystal irradiated by highly intense XFEL femtosecond pulses is investigated theoretically. Rate equations for bound electrons and the Boltzmann equation for the unbound electron gas are used in calculations.

The development of ultrashort X-ray pulse sources requires optics that keep the pulse length as short as possible. One source of pulse stretching is the penetration of the pulse into a crystal during diffraction. Another source is the inclination of the intensity front when the diffraction is asymmetric. The theory of short X-ray pulse diffraction has been well developed by many authors. As it is rather complicated, it is sometimes difficult to foresee the pulse behavior (mainly stretching) during diffraction in various crystal arrangements. In this article, a simple model is suggested that gives a qualitatively similar shape to the diffracted pulse which follows from exact theory. It allows proposal of what experimental arrangement is optimal to minimize the pulse stretching during diffraction. First, the effect of pulse stretching due to penetration into a crystal surface is studied. On the basis of this, the pulse profile change during diffraction by two crystals, either symmetric or asymmetric, is predicted.

In this article, the effect of stretching of short X-ray pulses after symmetric or asymmetric diffraction on crystal systems is studied. This is used to determine the optimal experimental arrangement to minimize the pulse stretching during diffraction.

The use of strongly bent crystals in spectrometers for pulses of a hard X-ray free-electron laser is explored theoretically. Diffraction is calculated in both dynamical and kinematical theories. It is shown that diffraction can be treated kinematically when the bending radius is small compared with the critical radius given by the ratio of the Bragg-case extinction length for the actual reflection to the Darwin width of this reflection. As a result, the spectral resolution is limited by the crystal thickness, rather than the extinction length, and can become better than the resolution of a planar dynamically diffracting crystal. As an example, it is demonstrated that spectra of the 12 keV pulses can be resolved in the 440 reflection from a 20 µm-thick diamond crystal bent to a radius of 10 cm.

The Smithsonian is joining with local communities and the Nigerian Montane Forest Project to better understand and conserve montane forests in Nigeria.

The post Taking the Pulse of Our Planet’s Forests: appeared first on Smithsonian Insider.

Voyage of a plastic bag in the ocean

Microplastics that are manufactured for us