ml Denver Center’s Hamlet is Traditionally Superb and Superbly Traditional By feeds.playshakespeare.com Published On :: Sun, 29 Sep 2024 23:50:23 +0000 The production of Hamlet by the Denver Center for the Performing Arts Theatre Company is fairly traditional. There are... Full Article Theatre Reviews
ml John Rhys-Davies narrates 'Scrooge' podcast; talks connection with Tolkien's Gimli: 'We all carry our chains' By www.christianpost.com Published On :: Tue, 12 Nov 2024 08:30:25 -0500 Actor John Rhys-Davies narrates a reimagined audio drama of "A Christmas Carol," drawn by the story’s themes of transformation, compassion and redemption, which he likens to the journeys of both Scrooge and his Rings character, Gimli, as they overcome prejudice and open their hearts to others. Full Article
ml 60 years since MLK's 'I have a dream speech': Good and bad changes since By www.christianpost.com Published On :: Fri, 01 Sep 2023 09:13:00 -0400 For me, someone raised in the segregated South, having attended segregated schools, a segregated church, and living in a segregated neighborhood, his sermon to America was a clarion call to commitment and action in support of a cause that was demanded both by our founding documents and, more importantly, by the Gospel proclaimed in the New Testament. Full Article
ml Kremlin: Russia is not confronting Americans. Russia is confronting their ideology By english.pravda.ru Published On :: Fri, 17 Nov 2023 14:00:00 +0300 Kremlin's official spokesman Dmitry Peskov gave an interview to the MGIMO 360 news channel, in which he answered questions about the presidential election, Russia's nuclear rhetoric and enemies. According to Peskov, Russia's next president should be "the same as [Vladimir] Putin… or different, but the same." "Putin has not announced his intention to run. But I sincerely want to believe that he will do it. I have no doubt that he will win the election, I have no doubt that he will continue to be our president. We'll see," Peskov said. Full Article Russia
ml Putin celebrates his 72nd birthday working in the Kremlin By english.pravda.ru Published On :: Mon, 07 Oct 2024 16:03:00 +0300 Russian President Vladimir Putin celebrates his 72nd birthday on October 7. The politician is expected to spend the day working. The head of Chechnya Ramzan Kadyrov was one of the first to congratulate the Russian leader. He wished him good health, prosperity, happiness, long life, good luck and success in his difficult work. As the press secretary of the Russian leader Dmitry Peskov said, Putin will spend his birthday working. Full Article Russia
ml Linnworks partners with Loop to streamline post-purchase experience for retailers By www.retailtechnologyreview.com Published On :: Linnworks, provider of inventory, order and warehouse management solutions for ecommerce retailers, has announced its new integration with Loop, a post-purchase platform designed to optimise returns, exchanges and reverse logistics. Full Article Internet Retailing Retail Supply Chain
ml Skeletons of Yukos. Why GML paid Alexey Golubovich $44 million. Part 2 By english.pravda.ru Published On :: Tue, 05 Apr 2022 12:09:00 +0300 Continued. Read Part I of the article here. Alexey Golubovich, Yukos's former director for strategic planning and corporate finance was one of the main witnesses in the case against Yukos. How can one determine the basis of his testimony? Was it a wish to help the Russian justice system or the subtle game of a "double agent"? In order to understand this, one may need to recall a few facts from his business biography. In the first part of our investigation, we talked about Alexey Golubovich's business projects and lawsuits in 2010–2022, in which one could see both the shadows of his former Yukos colleagues (for example, Mikhail Khodorkovsky, Yuri Beilin) and the non-systemic opposition. Full Article Business
ml Kremlin explains Putin's decision to cancel nationalisation of Danone By english.pravda.ru Published On :: Thu, 14 Mar 2024 15:51:00 +0300 The Russian authorities lifted temporary state management from the assets of French food giant Danone in Russia. The decision was made for reasons of expediency, Kremlin's official spokesman Dmitry Peskov said. On March 13, Russian President Vladimir Putin signed a decree to cancel the nationalisation of Danone's business and its transfer to Russia's Federal Property Management Agency. According to Peskov, all factors and conditions need to be weighed accordingly in every situation like this. Therefore, it does not mean that the Russian leadership will make similar decisions in relation to other foreign companies. Full Article Business
ml Volumatic partners with MHouse to help streamline cash processing By www.retailtechnologyreview.com Published On :: Cash handling solutions provider, Volumatic, has joined forces with EPoS solution providers MHouse Business Solutions to offer more efficient, accurate and streamlined cash processing to convenience retailers in Scotland and beyond. Full Article EPoS Systems Retail Supply Chain
ml Uragan MLRS: Formidable weapon with its strengths and weaknesses By english.pravda.ru Published On :: Thu, 26 Sep 2024 20:13:00 +0300 The crews of Uragan multiple launch rocket systems (MLRS) of the Vostok group of forces of the Russian Army obliterated armored vehicles of the Armed Forces of Ukraine in the area of the Vremevsky salient. Artillery crews of the group of forces in the South Donetsk direction of hostilities struck a fortified area of the Armed Forces of Ukraine in the area of the Vremevsky salient. A salvo of 16 Uragan rockets (300 kilograms each) covers an area of 42 hectares — this is equivalent to six football fields. High-explosive shells are capable of piercing through concrete shelters 1.5 meters thick. Full Article Incidents
ml Kremlin: Russia continues fighting By english.pravda.ru Published On :: Mon, 11 Nov 2024 15:56:00 +0300 Russia will continue military operations if Western countries let the Armed Forces of Ukraine to strike deep into the country, Kremlin's official spokesman Dmitry Peskov said, TASS reports. "This once again demonstrates that European leaders (…) continue to seek the strategic defeat of the Russian Federation. We, in turn, continue the special military operation until all set goals are achieved," the Kremlin representative said. Sending any new types of weapons to Ukraine will not let Kyiv take an advantage of the situation on the front, Peskov added. Full Article World
ml KBO Tops 10 Mln Mark in Attendance for 1st Time Ever By world.kbs.co.kr Published On :: Mon, 16 Sep 2024 13:54:29 +0900 [Sports] : South Korea’s professional baseball league has passed the ten million mark in attendance for the first time ever. According to the Korea Baseball Organization(KBO), cumulative attendance for the 2024 season came to ten million, 20-thousand-758 as of Sunday, with over 77-thousand tickets sold for four ...[more...] Full Article Sports
ml Streamline Your Business Operations with Cutting-edge Routing Software By auto.howstuffworks.com Published On :: Tue, 20 Feb 2024 18:33:02 -0500 Efficient route planning is crucial for businesses to stay competitive and meet customer demands. Thankfully, there are several free routing software options available that can help streamline your business operations. Whether you're a small business owner or a logistics manager, these tools can be invaluable in optimizing your routes and maximizing productivity. Full Article
ml A micro-beamstop with transmission detection by fluorescence for scanning-beam synchrotron scattering beamlines By journals.iucr.org Published On :: The correct determination of X-ray transmission at X-ray nanoprobes equipped with small beamstops for small- and wide-angle X-ray scattering collection is an unsolved problem with huge implications for data correction pipelines. We present a cost-effective solution to detect the transmission via the X-ray fluorescence of the beamstop with an avalanche photodiode. Full Article text
ml A micro-beamstop with transmission detection by fluorescence for scanning-beam synchrotron scattering beamlines By journals.iucr.org Published On :: 2024-10-29 Quantitative X-ray diffraction approaches require careful correction for sample transmission. Though this is a routine task at state-of-the-art small-angle X-ray scattering (SAXS), wide-angle X-ray scattering (WAXS) or diffraction beamlines at synchrotron facilities, the transmission signal cannot be recorded concurrently with SAXS/WAXS when using the small, sub-millimetre beamstops at many X-ray nanoprobes during SAXS/WAXS experiments due to the divergence-limited size of the beamstop and the generally tight geometry. This is detrimental to the data quality and often the only solution is to re-scan the sample with a PIN photodiode as a detector to obtain transmission values. In this manuscript, we present a simple yet effective solution to this problem in the form of a small beamstop with an inlaid metal target for optimal fluorescence yield. This fluorescence can be detected with a high-sensitivity avalanche photodiode and provides a linear counter to determine the sample transmission. Full Article text
ml Finback: a web-based data collection system at SSRF biological macromolecular crystallography beamlines By journals.iucr.org Published On :: 2024-01-19 An integrated computer software system for macromolecular crystallography (MX) data collection at the BL02U1 and BL10U2 beamlines of the Shanghai Synchrotron Radiation Facility is described. The system, Finback, implements a set of features designed for the automated MX beamlines, and is marked with a user-friendly web-based graphical user interface (GUI) for interactive data collection. The Finback client GUI can run on modern browsers and has been developed using several modern web technologies including WebSocket, WebGL, WebWorker and WebAssembly. Finback supports multiple concurrent sessions, so on-site and remote users can access the beamline simultaneously. Finback also cooperates with the deployed experimental data and information management system, the relevant experimental parameters and results are automatically deposited to a database. Full Article text
ml Grazing-incidence synchrotron radiation diffraction studies on irradiated Ce-doped and pristine Y-stabilized ZrO2 at the Rossendorf beamline By journals.iucr.org Published On :: 2024-02-16 In this work, Ce-doped yttria-stabilized zirconia (YSZ) and pure YSZ phases were subjected to irradiation with 14 MeV Au ions. Irradiation studies were performed to simulate long-term structural and microstructural damage due to self-irradiation in YSZ phases hosting alpha-active radioactive species. It was found that both the Ce-doped YSZ and the YSZ phases had a reasonable tolerance to irradiation at high ion fluences and the bulk crystallinity was well preserved. Nevertheless, local microstrain increased in all compounds under study after irradiation, with the Ce-doped phases being less affected than pure YSZ. Doping with cerium ions increased the microstructural stability of YSZ phases through a possible reduction in the mobility of oxygen atoms, which limits the formation of structural defects. Doping of YSZ with tetravalent actinide elements is expected to have a similar effect. Thus, YSZ phases are promising for the safe long-term storage of radioactive elements. Using synchrotron radiation diffraction, measurements of the thin irradiated layers of the Ce-YSZ and YSZ samples were performed in grazing incidence (GI) mode. A corresponding module for measurements in GI mode was developed at the Rossendorf Beamline and relevant technical details for sample alignment and data collection are also presented. Full Article text
ml ForMAX – a beamline for multiscale and multimodal structural characterization of hierarchical materials By journals.iucr.org Published On :: 2024-02-22 The ForMAX beamline at the MAX IV Laboratory provides multiscale and multimodal structural characterization of hierarchical materials in the nanometre to millimetre range by combining small- and wide-angle X-ray scattering with full-field microtomography. The modular design of the beamline is optimized for easy switching between different experimental modalities. The beamline has a special focus on the development of novel fibrous materials from forest resources, but it is also well suited for studies within, for example, food science and biomedical research. Full Article text
ml VerSoX B07-B: a high-throughput XPS and ambient pressure NEXAFS beamline at Diamond Light Source By journals.iucr.org Published On :: 2024-03-26 The beamline optics and endstations at branch B of the Versatile Soft X-ray (VerSoX) beamline B07 at Diamond Light Source are described. B07-B provides medium-flux X-rays in the range 45–2200 eV from a bending magnet source, giving access to local electronic structure for atoms of all elements from Li to Y. It has an endstation for high-throughput X-ray photoelectron spectroscopy (XPS) and near-edge X-ray absorption fine-structure (NEXAFS) measurements under ultrahigh-vacuum (UHV) conditions. B07-B has a second endstation dedicated to NEXAFS at pressures from UHV to ambient pressure (1 atm). The combination of these endstations permits studies of a wide range of interfaces and materials. The beamline and endstation designs are discussed in detail, as well as their performance and the commissioning process. Full Article text
ml Scattered high-energy synchrotron radiation at the KARA visible-light diagnostic beamline By journals.iucr.org Published On :: 2024-03-26 To characterize an electron beam, visible synchrotron light is often used and dedicated beamlines at synchrotron sources are becoming a more common feature as instruments and methods for the diagnostics are, along with the accelerators, further developed. At KARA (Karlsruhe Research Accelerator), such a beamline exists and is based on a typical infrared/visible-light configuration. From experience at such beamlines no significant radiation was expected (dose rates larger than 0.5 µSv h−1). This was found not to be the case and a higher dose was measured which fortunately could be shielded to an acceptable level with 0.3 mm of aluminium foil or 2.0 mm of Pyrex glass. The presence of this radiation led to further investigation by both experiment and calculation. A custom setup using a silicon drift detector for energy-dispersive spectroscopy (Ketek GmbH) and attenuation experiments showed the radiation to be predominantly copper K-shell fluorescence and is confirmed by calculation. The measurement of secondary radiation from scattering of synchrotron and other radiation, and its calculation, is important for radiation protection, and, although a lot of experience exists and methods for radiation protection are well established, changes in machine, beamlines and experiments mean a constant appraisal is needed. Full Article text
ml PINK: a tender X-ray beamline for X-ray emission spectroscopy By journals.iucr.org Published On :: 2024-04-25 A high-flux beamline optimized for non-resonant X-ray emission spectroscopy (XES) in the tender X-ray energy range has been constructed at the BESSY II synchrotron source. The beamline utilizes a cryogenically cooled undulator that provides X-rays over the energy range 2.1 keV to 9.5 keV. This energy range provides access to XES [and in the future X-ray absorption spectroscopy (XAS)] studies of transition metals ranging from Ti to Cu (Kα, Kβ lines) and Zr to Ag (Lα, Lβ), as well as light elements including P, S, Cl, K and Ca (Kα, Kβ). The beamline can be operated in two modes. In PINK mode, a multilayer monochromator (E/ΔE ≃ 30–80) provides a high photon flux (1014 photons s−1 at 6 keV and 300 mA ring current), allowing non-resonant XES measurements of dilute substances. This mode is currently available for general user operation. X-ray absorption near-edge structure and resonant XAS techniques will be available after the second stage of the PINK commissioning, when a high monochromatic mode (E/ΔE ≃ 10000–40000) will be facilitated by a double-crystal monochromator. At present, the beamline incorporates two von Hamos spectrometers, enabling time-resolved XES experiments with time scales down to 0.1 s and the possibility of two-color XES experiments. This paper describes the optical scheme of the PINK beamline and the endstation. The design of the two von Hamos dispersive spectrometers and sample environment are discussed here in detail. To illustrate, XES spectra of phosphorus complexes, KCl, TiO2 and Co3O4 measured using the PINK setup are presented. Full Article text
ml Development of dual-beamline photoelectron momentum microscopy for valence orbital analysis By journals.iucr.org Published On :: 2024-04-15 The soft X-ray photoelectron momentum microscopy (PMM) experimental station at the UVSOR Synchrotron Facility has been recently upgraded by additionally guiding vacuum ultraviolet (VUV) light in a normal-incidence configuration. PMM offers a very powerful tool for comprehensive electronic structure analyses in real and momentum spaces. In this work, a VUV beam with variable polarization in the normal-incidence geometry was obtained at the same sample position as the soft X-ray beam from BL6U by branching the VUV beamline BL7U. The valence electronic structure of the Au(111) surface was measured using horizontal and vertical linearly polarized (s-polarized) light excitations from BL7U in addition to horizontal linearly polarized (p-polarized) light excitations from BL6U. Such highly symmetric photoemission geometry with normal incidence offers direct access to atomic orbital information via photon polarization-dependent transition-matrix-element analysis. Full Article text
ml The concept for hard X-ray beamline optics at SLS 2.0 By journals.iucr.org Published On :: 2024-05-31 In the scope of the latest upgrade of the Swiss Light Source, five hard X-ray beamlines will be constructed or rebuilt. To use synergies between these beamline projects, a concept is developed here for hard X-ray beamlines that is tailored to the new storage ring. Herein, this concept is described from the source, via the front end, to the beamline optics. The latter will be outlined in detail, including a new and modular concept for hard X-ray monochromators, focusing optics and heat-load management. With a simple, easy-to-operate and robust beamline design, the new beamlines will greatly profit from the increased brilliance of the new storage ring. The performance increase is up to four orders of magnitude, while the beamline concept allows for the broad application of experimental techniques, from propagation-based methods, such as phase-contrast tomography, to imaging techniques with nanometre resolution. At the same time, spectroscopy experiments are possible as well as high-performance serial X-ray crystallography. Full Article text
ml First X-ray spectral ptychography and resonant ptychographic computed tomography experiments at the SWING beamline from Synchrotron SOLEIL By journals.iucr.org Published On :: 2024-05-21 X-ray ptychography and ptychographic computed tomography have seen a rapid rise since the advent of fourth-generation synchrotrons with a high degree of coherent radiation. In addition to quantitative multiscale structural analysis, ptychography with spectral capabilities has been developed, allowing for spatial-localized multiscale structural and spectral information of samples. The SWING beamline of Synchrotron SOLEIL has recently developed a nanoprobe setup where the endstation's first spectral and resonant ptychographic measurements have been successfully conducted. A metallic nickel wire sample was measured using 2D spectral ptychography in XANES mode and resonant ptychographic tomography. From the 2D spectral ptychography measurements, the spectra of the components of the sample's complex-valued refractive index, δ and β, were extracted, integrated along the sample thickness. By performing resonance ptychographic tomography at two photon energies, 3D maps of the refractive index decrement, δ, were obtained at the Ni K-edge energy and another energy above the edge. These maps allowed the detection of impurities in the Ni wire. The significance of accounting for the atomic scattering factor is demonstrated in the calculation of electron density near a resonance through the use of the δ values. These results indicate that at the SWING beamline it is possible to conduct state-of-the-art spectral and resonant ptychography experiments using the nanoprobe setup. Full Article text
ml GIWAXS experimental methods at the NFPS-BL17B beamline at Shanghai Synchrotron Radiation Facility By journals.iucr.org Published On :: 2024-06-25 The BL17B beamline at the Shanghai Synchrotron Radiation Facility was first designed as a versatile high-throughput protein crystallography beamline and one of five beamlines affiliated to the National Facility for Protein Science in Shanghai. It was officially opened to users in July 2015. As a bending magnet beamline, BL17B has the advantages of high photon flux, brightness, energy resolution and continuous adjustable energy between 5 and 23 keV. The experimental station excels in crystal screening and structure determination, providing cost-effective routine experimental services to numerous users. Given the interdisciplinary and green energy research demands, BL17B beamline has undergone optimization, expanded its range of experimental methods and enhanced sample environments for a more user-friendly testing mode. These methods include single-crystal X-ray diffraction, powder crystal X-ray diffraction, wide-angle X-ray scattering, grazing-incidence wide-angle X-ray scattering (GIWAXS), and fully scattered atom pair distribution function analysis, covering structure detection from crystalline to amorphous states. This paper primarily presents the performance of the BL17B beamline and the application of the GIWAXS methodology at the beamline in the field of perovskite materials. Full Article text
ml Hard X-ray imaging and tomography at the Biomedical Imaging and Therapy beamlines of Canadian Light Source By journals.iucr.org Published On :: 2024-07-15 The Biomedical Imaging and Therapy facility of the Canadian Light Source comprises two beamlines, which together cover a wide X-ray energy range from 13 keV up to 140 keV. The beamlines were designed with a focus on synchrotron applications in preclinical imaging and veterinary science as well as microbeam radiation therapy. While these remain a major part of the activities of both beamlines, a number of recent upgrades have enhanced the versatility and performance of the beamlines, particularly for high-resolution microtomography experiments. As a result, the user community has been quickly expanding to include researchers in advanced materials, batteries, fuel cells, agriculture, and environmental studies. This article summarizes the beam properties, describes the endstations together with the detector pool, and presents several application cases of the various X-ray imaging techniques available to users. Full Article text
ml BEATS: BEAmline for synchrotron X-ray microTomography at SESAME By journals.iucr.org Published On :: 2024-07-15 The ID10 beamline of the SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East) synchrotron light source in Jordan was inaugurated in June 2023 and is now open to scientific users. The beamline, which was designed and installed within the European Horizon 2020 project BEAmline for Tomography at SESAME (BEATS), provides full-field X-ray radiography and microtomography imaging with monochromatic or polychromatic X-rays up to photon energies of 100 keV. The photon source generated by a 2.9 T wavelength shifter with variable gap, and a double-multilayer monochromator system allow versatile application for experiments requiring either an X-ray beam with high intensity and flux, and/or a partially spatial coherent beam for phase-contrast applications. Sample manipulation and X-ray detection systems are designed to allow scanning samples with different size, weight and material, providing image voxel sizes from 13 µm down to 0.33 µm. A state-of-the-art computing infrastructure for data collection, three-dimensional (3D) image reconstruction and data analysis allows the visualization and exploration of results online within a few seconds from the completion of a scan. Insights from 3D X-ray imaging are key to the investigation of specimens from archaeology and cultural heritage, biology and health sciences, materials science and engineering, earth, environmental sciences and more. Microtomography scans and preliminary results obtained at the beamline demonstrate that the new beamline ID10-BEATS expands significantly the range of scientific applications that can be targeted at SESAME. Full Article text
ml Development and performance simulations of a soft X-ray and XUV split-and-delay unit at beamlines FL23/24 at FLASH2 for time-resolved two-color pump–probe experiments By journals.iucr.org Published On :: 2024-08-05 The split-and-delay unit (SDU) at FLASH2 will be upgraded to enable the simultaneous operation of two temporally, spatially and spectrally separated probe beams when the free-electron laser undulators are operated in a two-color scheme. By means of suitable thin filters and an optical grating beam path a wide range of combinations of photon energies in the spectral range from 150 eV to 780 eV can be chosen. In this paper, simulations of the spectral transmission and performance parameters of the filter technique are discussed, along with a monochromator with dispersion compensation presently under construction. Full Article text
ml MLgrating: a program for simulating multilayer gratings for tender X-ray applications By journals.iucr.org Published On :: 2024-08-01 Multilayer gratings are increasingly popular optical elements at X-ray beamlines, as they can provide much higher photon flux in the tender X-ray range compared with traditional single-layer coated gratings. While there are several proprietary software tools that provide the functionality to simulate the efficiencies of such gratings, until now the X-ray community has lacked an open-source alternative. Here MLgrating is presented, a program for simulating the efficiencies of both multilayer gratings and single-layer coated gratings for X-ray applications. MLgrating is benchmarked by comparing its output with that of other software tools and plans are discussed for how the program could be extended in the future. Full Article text
ml Hyperspectral full-field quick-EXAFS imaging at the ROCK beamline for monitoring micrometre-sized heterogeneity of functional materials under process conditions By journals.iucr.org Published On :: 2024-08-23 Full-field transmission X-ray microscopy has been recently implemented at the hard X-ray ROCK–SOLEIL quick-EXAFS beamline, adding micrometre spatial resolution to the second time resolution characterizing the beamline. Benefiting from a beam size versatility due to the beamline focusing optics, full-field hyperspectral XANES imaging has been successfully used at the Fe K-edge for monitoring the pressure-induced spin transition of a 150 µm × 150 µm Fe(o-phen)2(NCS)2 single crystal and the charge of millimetre-sized LiFePO4 battery electrodes. Hyperspectral imaging over 2000 eV has been reported for the simultaneous monitoring of Fe and Cu speciation changes during activation of a FeCu bimetallic catalyst along a millimetre-sized catalyst bed. Strategies of data acquisition and post-data analysis using Jupyter notebooks and multivariate data analysis are presented, and the gain obtained using full-field hyperspectral quick-EXAFS imaging for studies of functional materials under process conditions in comparison with macroscopic information obtained by non-spatially resolved quick-EXAFS techniques is discussed. Full Article text
ml The soft X-ray spectromicroscopy beamline BL08U1A upgrade at SSRF By journals.iucr.org Published On :: 2024-08-22 Beamline BL08U1A is a soft X-ray spectromicroscopy beamline at Shanghai Synchrotron Radiation Facility (SSRF) that exhibits the capabilities of high spatial resolution (30 nm) and high energy resolving power (over 104). As a first-generation beamline of SSRF, owing to its continuous operation over the last ten years, an urgent upgrade of the equipment including the monochromator was deemed necessary. The upgrade work included the overall construction of the monochromator and replacement of the mirrors upstream and downstream of the monochromator. Based on its original skeleton, two elliptically cylinder mirrors were designed to focus the beam horizontally, which can increase the flux density by about three times on the exit slits. Meanwhile, the application of variable-line-space gratings in the monochromator demonstrates the dual functions of dispersing and focusing on the exit slits which can decrease abberations dramatically. After the upgrade of the main components of the beamline, the energy range is 180–2000 eV, the energy resolving power reaches 16333 @ 244 eV and 12730 @ 401 eV, and the photon flux measured in the experimental station is over 2.45 × 109 photons s−1 (E/ΔE = 6440 @ 244 eV). Full Article text
ml A distributed software system for integrating data-intensive imaging methods in a hard X-ray nanoprobe beamline at the SSRF By journals.iucr.org Published On :: 2024-08-22 The development of hard X-ray nanoprobe techniques has given rise to a number of experimental methods, like nano-XAS, nano-XRD, nano-XRF, ptychography and tomography. Each method has its own unique data processing algorithms. With the increase in data acquisition rate, the large amount of generated data is now a big challenge to these algorithms. In this work, an intuitive, user-friendly software system is introduced to integrate and manage these algorithms; by taking advantage of the loosely coupled, component-based design approach of the system, the data processing speed of the imaging algorithm is enhanced through optimization of the parallelism efficiency. This study provides meaningful solutions to tackle complexity challenges faced in synchrotron data processing. Full Article text
ml The High-Pressure Freezing Laboratory for Macromolecular Crystallography (HPMX), an ancillary tool for the macromolecular crystallography beamlines at the ESRF By journals.iucr.org Published On :: 2024-01-24 This article describes the High-Pressure Freezing Laboratory for Macromolecular Crystallography (HPMX) at the ESRF, and highlights new and complementary research opportunities that can be explored using this facility. The laboratory is dedicated to investigating interactions between macromolecules and gases in crystallo, and finds applications in many fields of research, including fundamental biology, biochemistry, and environmental and medical science. At present, the HPMX laboratory offers the use of different high-pressure cells adapted for helium, argon, krypton, xenon, nitrogen, oxygen, carbon dioxide and methane. Important scientific applications of high pressure to macromolecules at the HPMX include noble-gas derivatization of crystals to detect and map the internal architecture of proteins (pockets, tunnels and channels) that allows the storage and diffusion of ligands or substrates/products, the investigation of the catalytic mechanisms of gas-employing enzymes (using oxygen, carbon dioxide or methane as substrates) to possibly decipher intermediates, and studies of the conformational fluctuations or structure modifications that are necessary for proteins to function. Additionally, cryo-cooling protein crystals under high pressure (helium or argon at 2000 bar) enables the addition of cryo-protectant to be avoided and noble gases can be employed to produce derivatives for structure resolution. The high-pressure systems are designed to process crystals along a well defined pathway in the phase diagram (pressure–temperature) of the gas to cryo-cool the samples according to the three-step `soak-and-freeze method'. Firstly, crystals are soaked in a pressurized pure gas atmosphere (at 294 K) to introduce the gas and facilitate its interactions within the macromolecules. Samples are then flash-cooled (at 100 K) while still under pressure to cryo-trap macromolecule–gas complexation states or pressure-induced protein modifications. Finally, the samples are recovered after depressurization at cryo-temperatures. The final section of this publication presents a selection of different typical high-pressure experiments carried out at the HPMX, showing that this technique has already answered a wide range of scientific questions. It is shown that the use of different gases and pressure conditions can be used to probe various effects, such as mapping the functional internal architectures of enzymes (tunnels in the haloalkane dehalogenase DhaA) and allosteric sites on membrane-protein surfaces, the interaction of non-inert gases with proteins (oxygen in the hydrogenase ReMBH) and pressure-induced structural changes of proteins (tetramer dissociation in urate oxidase). The technique is versatile and the provision of pressure cells and their application at the HPMX is gradually being extended to address new scientific questions. Full Article text
ml Structure of MltG from Mycobacterium abscessus reveals structural plasticity between composed domains By journals.iucr.org Published On :: 2024-11-01 MltG, a membrane-bound lytic transglycosylase, has roles in terminating glycan polymerization in peptidoglycan and incorporating glycan chains into the cell wall, making it significant in bacterial cell-wall biosynthesis and remodeling. This study provides the first reported MltG structure from Mycobacterium abscessus (maMltG), a superbug that has high antibiotic resistance. Our structural and biochemical analyses revealed that MltG has a flexible peptidoglycan-binding domain and exists as a monomer in solution. Further, the putative active site of maMltG was disclosed using structural analysis and sequence comparison. Overall, this study contributes to our understanding of the transglycosylation reaction of the MltG family, aiding the design of next-generation antibiotics targeting M. abscessus. Full Article text
ml Development and testing of a dual-frequency, real-time hardware feedback system for the hard X-ray nanoprobe beamline of the SSRF By journals.iucr.org Published On :: we introduce a novel approach for a real-time dual-frequency feedback system, which has been firstly used at the hard X-ray nanoprobe beamline of SSRF. The BiBEST can then efficiently stabilize X-ray beam position and stability in parallel, making use of different optical systems in the beamline. Full Article text
ml Upgrade of crystallography beamline BL19U1 at the Shanghai Synchrotron Radiation Facility By journals.iucr.org Published On :: 2024-04-15 BL19U1, an energy-tunable protein complex crystallography beamline at the Shanghai Synchrotron Radiation Facility, has emerged as one of the most productive MX beamlines since opening to the public in July 2015. As of October 2023, it has contributed to over 2000 protein structures deposited in the Protein Data Bank (PDB), resulting in the publication of more than 1000 scientific papers. In response to increasing interest in structure-based drug design utilizing X-ray crystallography for fragment library screening, enhancements have been implemented in both hardware and data collection systems on the beamline to optimize efficiency. Hardware upgrades include the transition from MD2 to MD2S for the diffractometer, alongside the installation of a humidity controller featuring a rapid nozzle exchanger. This allows users to opt for either low-temperature or room-temperature data collection modes. The control system has been upgraded from Blu-Ice to MXCuBE3, which supports website-mode data collection, providing enhanced compatibility and easy expansion with new features. An automated data processing pipeline has also been developed to offer users real-time feedback on data quality. Full Article text
ml Automated pipeline processing X-ray diffraction data from dynamic compression experiments on the Extreme Conditions Beamline of PETRA III By journals.iucr.org Published On :: 2024-07-04 Presented and discussed here is the implementation of a software solution that provides prompt X-ray diffraction data analysis during fast dynamic compression experiments conducted within the dynamic diamond anvil cell technique. It includes efficient data collection, streaming of data and metadata to a high-performance cluster (HPC), fast azimuthal data integration on the cluster, and tools for controlling the data processing steps and visualizing the data using the DIOPTAS software package. This data processing pipeline is invaluable for a great number of studies. The potential of the pipeline is illustrated with two examples of data collected on ammonia–water mixtures and multiphase mineral assemblies under high pressure. The pipeline is designed to be generic in nature and could be readily adapted to provide rapid feedback for many other X-ray diffraction techniques, e.g. large-volume press studies, in situ stress/strain studies, phase transformation studies, chemical reactions studied with high-resolution diffraction etc. Full Article text
ml Five-analyzer Johann spectrometer for hard X-ray photon-in/photon-out spectroscopy at the Inner Shell Spectroscopy beamline at NSLS-II: design, alignment and data acquisition By journals.iucr.org Published On :: 2024-10-30 Here, a recently commissioned five-analyzer Johann spectrometer at the Inner Shell Spectroscopy beamline (8-ID) at the National Synchrotron Light Source II (NSLS-II) is presented. Designed for hard X-ray photon-in/photon-out spectroscopy, the spectrometer achieves a resolution in the 0.5–2 eV range, depending on the element and/or emission line, providing detailed insights into the local electronic and geometric structure of materials. It serves a diverse user community, including fields such as physical, chemical, biological, environmental and materials sciences. This article details the mechanical design, alignment procedures and data-acquisition scheme of the spectrometer, with a particular focus on the continuous asynchronous data-acquisition approach that significantly enhances experimental efficiency. Full Article text
ml VMXm – A sub-micron focus macromolecular crystallography beamline at Diamond Light Source By journals.iucr.org Published On :: 2024-10-30 VMXm joins the suite of operational macromolecular crystallography beamlines at Diamond Light Source. It has been designed to optimize rotation data collections from protein crystals less than 10 µm and down to below 1 µm in size. The beamline has a fully focused beam of 0.3 × 2.3 µm (vertical × horizontal) with a tuneable energy range (6–28 keV) and high flux (1.6 × 1012 photons s−1 at 12.5 keV). The crystals are housed within a vacuum chamber to minimize background scatter from air. Crystals are plunge-cooled on cryo-electron microscopy grids, allowing much of the liquid surrounding the crystals to be removed. These factors improve the signal-to-noise during data collection and the lifetime of the microcrystals can be prolonged by exploiting photoelectron escape. A novel in vacuo sample environment has been designed which also houses a scanning electron microscope to aid with sample visualization. This combination of features at VMXm allows measurements at the physical limits of X-ray crystallography on biomacromolecules to be explored and exploited. Full Article text
ml Mirror-centered representation of a focusing hyperbolic mirror for X-ray beamlines By journals.iucr.org Published On :: 2024-10-29 Conic sections are commonly used in reflective X-ray optics. Hyperbolic mirrors can focus a converging light source and are frequently paired with elliptical or parabolic mirrors in Wolter type configurations. This paper derives the closed-form expression for a mirror-centered hyperbolic shape, with zero-slope at the origin. Combined with the slope and curvature, such an expression facilitates metrology, manufacturing and mirror-bending calculations. Previous works consider ellipses, parabolas, magnifying hyperbolas or employ lengthy approximations. Here, the exact shape function is given in terms of the mirror incidence angle and the source and image distances. Full Article text
ml A general Bayesian algorithm for the autonomous alignment of beamlines By journals.iucr.org Published On :: 2024-10-28 Autonomous methods to align beamlines can decrease the amount of time spent on diagnostics, and also uncover better global optima leading to better beam quality. The alignment of these beamlines is a high-dimensional expensive-to-sample optimization problem involving the simultaneous treatment of many optical elements with correlated and nonlinear dynamics. Bayesian optimization is a strategy of efficient global optimization that has proved successful in similar regimes in a wide variety of beamline alignment applications, though it has typically been implemented for particular beamlines and optimization tasks. In this paper, we present a basic formulation of Bayesian inference and Gaussian process models as they relate to multi-objective Bayesian optimization, as well as the practical challenges presented by beamline alignment. We show that the same general implementation of Bayesian optimization with special consideration for beamline alignment can quickly learn the dynamics of particular beamlines in an online fashion through hyperparameter fitting with no prior information. We present the implementation of a concise software framework for beamline alignment and test it on four different optimization problems for experiments on X-ray beamlines at the National Synchrotron Light Source II and the Advanced Light Source, and an electron beam at the Accelerator Test Facility, along with benchmarking on a simulated digital twin. We discuss new applications of the framework, and the potential for a unified approach to beamline alignment at synchrotron facilities. Full Article text
ml Towards Seamless Payment Interoperability – Thunes Report By thepaypers.com Published On :: Fri, 11 Oct 2024 09:24:00 +0100 ‘The Road Ahead: Towards Seamless Payments Interoperability’, an eBook from Thunes, Visa, and The Paypers, explores how payments interoperability is reshaping the future of cross-border transactions. Full Article
ml Africhange secures IMTO licence to streamline remittance to Nigeria By thepaypers.com Published On :: Fri, 08 Nov 2024 14:45:00 +0100 Africhange has announced that its Nigerian branch, Currenzo,... Full Article
ml Rita Beaver, Assistant Register of Deeds, named Catawba County 2011 Emloyee Of The Year By www.catawbacountync.gov Published On :: Wed, 26 Oct 2011 09:40:00 EST A 35 year veteran of the Register of Deeds Office, Beaver was praised by all her co-workers in that office for excellent customer service, for being a patient instructor on the laws involved in her work, and for preserving the County�s history. Full Article News Release FYI Please Choose
ml Godrej & Boyce uses AI, ML, and analytics to improve product quality and reduce defects By cio.economictimes.indiatimes.com Published On :: Mon, 27 Mar 2023 08:00:00 +0530 G&B has deployed over 80 RPA bots to automate manual processes across the value chain. This has resulted in productivity improvement, reduction in errors and improvement of employee experience. Full Article
ml Data center firm ESDS Software to hire 300 AI/ML engineers in India By cio.economictimes.indiatimes.com Published On :: Thu, 11 Jul 2024 19:27:39 +0530 ESDS said its client base includes the Software Technology Parks of India (STPI), SIDBI Bank, Union Bank of India, State Bank of India Capital, and over 400 cooperative banks, as well as, the Embassy Group, Vadilal, and Unibic. Full Article
ml DX is revolutionizing vehicle crash test system industry: Abhinav Srivastava, Daimler India Commercial Vehicles By cio.economictimes.indiatimes.com Published On :: Sat, 02 Nov 2024 11:01:09 +0530 Abhinav Srivastava, CIO, Daimler India Commercial Vehicles, talks about how technology is reshaping automotive safety. Full Article
ml Search startup Perplexity AI valued at $520 mln in funding from Bezos, Nvidia By cio.economictimes.indiatimes.com Published On :: Fri, 05 Jan 2024 11:06:20 +0530 The round was led by venture capital firm IVP and valued the company at about $520 million, according to the company. NEA, NVIDIA, Databricks, and Bessemer Venture Partners also participated in the round. Full Article
ml Third-party logistics helps streamline snack and bakery distribution By www.snackandbakery.com Published On :: Fri, 15 May 2020 09:00:00 -0400 Third-party logistics (3PL) can be useful when snack and bakery companies need to outsource logistics and distribution needs. Full Article
ml New technologies streamline delivery By www.snackandbakery.com Published On :: Tue, 20 Apr 2021 13:07:00 -0400 Efficiency is the name of the game across all aspects of the food industry. For snack and bakery companies managing varying degrees of their product distribution, including direct-store delivery (DSD) routes, streamlining operations can come in many forms, including new technologies. Full Article