A former “gender-care specialist” at Boston Children’s Hospital testified that her ex-employer slashed the time allotted for psychologists to assess minors expressing confusion about their sex before referring them for life-altering procedures. 

With bars, restaurants and venues closed down indefinitely, it's harder than ever to be a working musician. But that doesn't mean New Hampshire artists aren't performing. NHPR's Morning Edition Host Rick Ganley spoke with Campton musician Jim Tyrrell to ask what he's doing while he can't play on stage. You can watch Jim Tyrrell and other local New Hampshire musicians play live shows here . Jim Tyrrell: This is pretty unprecedented for me, certainly, and for a lot of people. You know, we're all just kind of adjusting on the fly, but that's true of any industry, I suppose. Rick Ganley: Yeah, you're part of a group of, I think, pretty tight musicians in central New Hampshire that play a lot of the same venues different nights of the week. What are you hearing from your friends and your fellow musicians? Jim Tyrrell: Oh, I think we're all -- it is a pretty tight community, as you mentioned, and we're all connected on social media. So we're very supportive of one another. And we're just

A historic African Methodist Episcopal church in Pennsylvania has been appointed its first woman pastor since the congregation was founded in the late 18th century.

Ohio State has sold the name of a building before. Actually, several times before. But the naming rights to a job title? That seems a bit different.

You may be wondering at this point, "Who is Bernie Stowe?" Usually when we talk about sports, we talk about players, or coaches. Maybe even the front office. Not this time.

Mos.ru photo A treasure of copper coins and part of wooden pavement of the XVIII century has been found on the Boulevard Ring in Moscow. Preparatory work for redevelopment under My Street project helped archeologists of the capital to find dozens of personal objects as well as remnants of the city infrastructure. The age is of 100-500 years. Everything was found on the Boulevard Ring while preparing trenches for further communications. There were found parts of the drainage systems, tram lines, as well as utility, and smaller household items. Remnants of the wooden pavement of the XVIII century were found on the Strastnoy Boulevard.

By Aviram Ganor, General Manager EMEA, Riskified.

Retailers have plenty to keep them awake at night, whether it’s enticing consumers to shop,  utdoing their competition or – most worrying of all – how to ensure their long-term survival in a rocky economy. Yet the latest insight from the British Retail Consortium offers some hope.

Gold prices rose to a record high on the Chicago Mercantile Exchange (CME) on April 1, RBC reports with reference to data from the trading platform. June contracts for the supply of gold rose in price by 2.14 percent, to $2,286 per ounce. The price neared the level of $2,300 and reached a new all-time high. Gold is rising in price amid expectations for the US Federal Reserve to cut the rate in June, Warren Patterson, head of commodity strategy at ING Groep NV said.

PervasID, provider of passive Radio Frequency Identification (RFID) reader systems for automating inventory and asset tracking, has launched a new advanced version of TrackMaster, claimed to provide greatly enhanced return on investment performance.

"The right time" for a telephone conversation with Russian President Vladimir Putin will come soon, German Chancellor Olaf Scholz said in an interview with ARD. Scholz and Purin last spoke on December 2, 2022. Subsequently, Scholz has repeatedly said that he will speak to the Russian leader only when the "right time" comes. During the interview, journalists asked the chancellor when this "right time" would come. "Soon," Scholz replied, Stern reports.

Added February 17, 2006:

An American from California simultaneously contracted the coronavirus and monkeypox, reports NBC. Mitcho Thompson, from the town of Sebastopol, told the TV channel that he tested positive for COVID-19 at the end of June, and soon after noticed red spots on his back, legs, arms and neck. "The doctor was absolutely certain that I had monkeypox and that I had both," Thompson said.

[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...]

[Politics] :
The Navy flew a fixed-wing drone from one of its vessels for the first time as part of its efforts to advance technology for unmanned aerial vehicles. The Navy said a prototype of the Mojave drone, developed by the U.S. firm General Atomics Aeronautical Systems, took off Tuesday from the 14-thousand-ton ...

[more...]

[International] :
The price of Bitcoin surpassed the 80-thousand-dollar mark for the first time just days after Donald Trump’s reelection to the U.S. presidency.    According to the U.S. cryptocurrency exchange platform Coinbase, the world’s most popular cryptocurrency was worth 81-thousand-110 U.S. dollars at 1:25 a.m. ...

[more...]

A route planner app takes the guesswork out of your commute and helps you navigate through the chaos with ease. No more sitting in bumper-to-bumper traffic, feeling frustrated and stressed.

Unfortunately for drivers, we often see the highest gas prices during the summer, starting around Memorial Day. In May 2022, U.S. consumers paid an average of $1.50 per gallon more than they were at the same time in 2021, according to AAA.

[Economy] :
The Korea Development Institute(KDI) has recommended further easing of monetary policy tightening as it forecast that the slowdown in inflation will continue for the time being.  The state-run think tank made the recommendation in a report released on Monday that analyzed recent price fluctuation factors ...

[more...]

[Economy] :
South Korea’s benchmark Korea Composite Stock Price Index(KOSPI) slipped below the two-thousand-500 threshold on Tuesday for the first time since August’s “Black Monday.” The KOSPI dipped 49-point-09 points, or one-point-94 percent, on Tuesday to close at two-thousand-482-point-57. In the ...

[more...]

[Economy] :
South Korea’s tech-laden KOSDAQ fell below the 700 mark during trading for the first time in two months.  As of 10:12 a.m. Wednesday, the secondary KOSDAQ market stood at 697-point-94, down 12-point-58 points or one-point-77 percent from the previous day.  It marks the first time the KOSDAQ has ...

[more...]

Small earthquake recorded under Powys town  Powys County Times

The electric field responses of the average and local lattice strains and polar nanoregions of relaxor ferroelectric PMN-30PT single crystals were revealed by multi-scale and time-resolved X-ray diffraction under DC and AC electric fields.

This paper describes real-time statistical analysis of liquid jet images for SFX experiments at the European XFEL. This analysis forms one part of the automated jet re-alignment system for SFX experiments at the SPB/SFX instrument of European XFEL.

Lead-based relaxor ferroelectrics exhibit giant piezoelectric properties owing to their heterogeneous structures. The average and local structures measured by single-crystal X-ray diffraction under DC and AC electric fields are reviewed in this article. The position-dependent local lattice strain and the distribution of polar nanodomains and nanoregions show strong electric field dependence, which contributes to the giant piezoelectric properties.

To fully exploit ultra-short X-ray pulse durations routinely available at X-ray free-electron lasers to follow out-of-equilibrium dynamics, inherent arrival time fluctuations of the X-ray pulse with an external perturbing laser pulse need to be measured. In this work, two methods of arrival time measurement were compared to measure the arrival time jitter of hard X-ray pulses. The methods were photoelectron streaking by a THz field and a transient refractive index change of a semiconductor. The methods were validated by shot-to-shot correction of a pump–probe transient reflectivity measurement. An ultimate shot-to-shot full width at half-maximum error between the devices of 19.2 ± 0.1 fs was measured.

Physical optics simulations for beamlines and experiments allow users to test experiment feasibility and optimize beamline settings ahead of beam time in order to optimize valuable beam time at synchrotron light sources like NSLS-II. Further, such simulations also help to develop and test experimental data processing methods and software in advance. The Synchrotron Radiation Workshop (SRW) software package supports such complex simulations. We demonstrate how recent developments in SRW significantly improve the efficiency of physical optics simulations, such as end-to-end simulations of time-dependent X-ray photon correlation spectroscopy experiments with partially coherent undulator radiation (UR). The molecular dynamics simulation code LAMMPS was chosen to model the sample: a solution of silica nanoparticles in water at room temperature. Real-space distributions of nanoparticles produced by LAMMPS were imported into SRW and used to simulate scattering patterns of partially coherent hard X-ray UR from such a sample at the detector. The partially coherent UR illuminating the sample can be represented by a set of orthogonal coherent modes obtained by simulation of emission and propagation of this radiation through the coherent hard X-ray (CHX) scattering beamline followed by a coherent-mode decomposition. GPU acceleration is added for several key functions of SRW used in propagation from sample to detector, further improving the speed of the calculations. The accuracy of this simulation is benchmarked by comparison with experimental data.

The infrared beamline at BESSY II storage ring was upgraded recently to extend the capabilities of infrared microscopy. The endstations available at the beamline are now facilitating improved characterization of molecules and materials at different length scales and time resolutions. Here, the current outline of the beamline is reported and an overview of the endstations available is given. In particular, the first results obtained by using a new microscope for nano-spectroscopy that was implemented are presented. The capabilities of the scattering-type near-field optical microscope (s-SNOM) are demonstrated by investigating cellulose microfibrils, representing nanoscopic objects of a hierarchical structure. It is shown that the s-SNOM coupled to the beamline allows imaging to be performed with a spatial resolution of less than 30 nm and infrared spectra to be collected from an effective volume of less than 30 nm × 30 nm × 12 nm. Potential steps for further optimization of the beamline performance are discussed.

TEMPUS is a new detector system being developed for photon science. It is based on the Timepix4 chip and, thus, it can be operated in two distinct modes: a photon-counting mode, which allows for conventional full-frame readout at rates up to 40 kfps; and an event-driven time-stamping mode, which allows excellent time resolution in the nanosecond regime in measurements with moderate X-ray flux. In this paper, the initial prototype, a single-chip device, is introduced, and the readout system described. Moreover, and in order to evaluate its capabilities, some tests were performed at PETRA III and ESRF for which results are also presented.

The advent of diffraction-limited storage rings (DLSRs) has boosted the brilliance or coherent flux by one to two orders of magnitude with respect to the previous generation. One consequence of this brilliance enhancement is an increase in the flux density or number of photons per unit of area and time, which opens new possibilities for the spatiotemporal resolution of X-ray imaging techniques. This paper studies the time-resolved microscopy capabilities of such facilities by benchmarking the ForMAX beamline at the MAX IV storage ring. It is demonstrated that this enhanced flux density using a single harmonic of the source allows micrometre-resolution time-resolved imaging at 2000 tomograms per second and 1.1 MHz 2D acquisition rates using the full dynamic range of the detector system.

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.

The technique of time-resolved macromolecular crystallography (TR-MX) has recently been rejuvenated at synchrotrons, resulting in the design of dedicated beamlines. Using pump–probe schemes, this should make the mechanistic study of photoactive proteins and other suitable systems possible with time resolutions down to microseconds. In order to identify relevant time delays, time-resolved spectroscopic experiments directly performed on protein crystals are often desirable. To this end, an instrument has been built at the icOS Lab (in crystallo Optical Spectroscopy Laboratory) at the European Synchrotron Radiation Facility using reflective focusing objectives with a tuneable nanosecond laser as a pump and a microsecond xenon flash lamp as a probe, called the TR-icOS (time-resolved icOS) setup. Using this instrument, pump–probe spectra can rapidly be recorded from single crystals with time delays ranging from a few microseconds to seconds and beyond. This can be repeated at various laser pulse energies to track the potential presence of artefacts arising from two-photon absorption, which amounts to a power titration of a photoreaction. This approach has been applied to monitor the rise and decay of the M state in the photocycle of crystallized bacteriorhodopsin and showed that the photocycle is increasingly altered with laser pulses of peak fluence greater than 100 mJ cm−2, providing experimental laser and delay parameters for a successful TR-MX experiment.

Over the last decade, the development of time-resolved serial crystallography (TR-SX) at X-ray free-electron lasers (XFELs) and synchrotrons has allowed researchers to study phenomena occurring in proteins on the femtosecond-to-minute timescale, taking advantage of many technical and methodological breakthroughs. Protein crystals of various sizes are presented to the X-ray beam in either a static or a moving medium. Photoactive proteins were naturally the initial systems to be studied in TR-SX experiments using pump–probe schemes, where the pump is a pulse of visible light. Other reaction initiations through small-molecule diffusion are gaining momentum. Here, selected examples of XFEL and synchrotron time-resolved crystallography studies will be used to highlight the specificities of the various instruments and methods with respect to time resolution, and are compared with cryo-trapping studies.

Molecular structures can be determined in vitro and in situ with cryo-electron microscopy (cryo-EM). Specimen preparation is a major obstacle in cryo-EM. Typical sample preparation is orders of magnitude slower than biological processes. Time-resolved cryo-EM (TR-cryo-EM) can capture short-lived states. Here, Cryo-EM sample preparation with light-activated molecules (C-SPAM) is presented, an open-source, photochemistry-coupled device for TR-cryo-EM that enables millisecond resolution and tunable timescales across broad biological applications.

Serial crystallography requires large numbers of microcrystals and robust strategies to rapidly apply substrates to initiate reactions in time-resolved studies. Here, we report the use of droplet miniaturization for the controlled production of uniform crystals, providing an avenue for controlled substrate addition and synchronous reaction initiation. The approach was evaluated using two enzymatic systems, yielding 3 µm crystals of lysozyme and 2 µm crystals of Pdx1, an Arabidopsis enzyme involved in vitamin B6 biosynthesis. A seeding strategy was used to overcome the improbability of Pdx1 nucleation occurring with diminishing droplet volumes. Convection within droplets was exploited for rapid crystal mixing with ligands. Mixing times of <2 ms were achieved. Droplet microfluidics for crystal size engineering and rapid micromixing can be utilized to advance time-resolved serial crystallography.

Here, a machine-learning method based on a kinetically informed neural network (NN) is introduced. The proposed method is designed to analyze a time series of difference electron-density maps from a time-resolved X-ray crystallographic experiment. The method is named KINNTREX (kinetics-informed NN for time-resolved X-ray crystallography). To validate KINNTREX, multiple realistic scenarios were simulated with increasing levels of complexity. For the simulations, time-resolved X-ray data were generated that mimic data collected from the photocycle of the photoactive yellow protein. KINNTREX only requires the number of intermediates and approximate relaxation times (both obtained from a singular valued decomposition) and does not require an assumption of a candidate mechanism. It successfully predicts a consistent chemical kinetic mechanism, together with difference electron-density maps of the intermediates that appear during the reaction. These features make KINNTREX attractive for tackling a wide range of biomolecular questions. In addition, the versatility of KINNTREX can inspire more NN-based applications to time-resolved data from biological macromolecules obtained by other methods.

Metal-based complexes with their unique chemical properties, including multiple oxidation states, radio-nuclear capabilities and various coordination geometries yield value as potential pharmaceuticals. Understanding the interactions between metals and biological systems will prove key for site-specific coordination of new metal-based lead compounds. This study merges the concepts of target coordination with fragment-based drug methodologies, supported by varying the anomalous scattering of rhenium along with infrared spectroscopy, and has identified rhenium metal sites bound covalently with two amino acid types within the model protein. A time-based series of lysozyme-rhenium-imidazole (HEWL-Re-Imi) crystals was analysed systematically over a span of 38 weeks. The main rhenium covalent coordination is observed at His15, Asp101 and Asp119. Weak (i.e. noncovalent) interactions are observed at other aspartic, asparagine, proline, tyrosine and tryptophan side chains. Detailed bond distance comparisons, including precision estimates, are reported, utilizing the diffraction precision index supplemented with small-molecule data from the Cambridge Structural Database. Key findings include changes in the protein structure induced at the rhenium metal binding site, not observed in similar metal-free structures. The binding sites are typically found along the solvent-channel-accessible protein surface. The three primary covalent metal binding sites are consistent throughout the time series, whereas binding to neighbouring amino acid residues changes through the time series. Co-crystallization was used, consistently yielding crystals four days after setup. After crystal formation, soaking of the compound into the crystal over 38 weeks is continued and explains these structural adjustments. It is the covalent bond stability at the three sites, their proximity to the solvent channel and the movement of residues to accommodate the metal that are important, and may prove useful for future radiopharmaceutical development including target modification.

Light–oxygen–voltage (LOV) domains are small photosensory flavoprotein modules that allow the conversion of external stimuli (sunlight) into intra­cellular signals responsible for various cell behaviors (e.g. phototropism and chloro­plast relocation). This ability relies on the light-induced formation of a covalent thio­ether adduct between a flavin chromophore and a reactive cysteine from the protein environment, which triggers a cascade of structural changes that result in the activation of a serine/threonine (Ser/Thr) kinase. Recent developments in time-resolved crystallography may allow the activation cascade of the LOV domain to be observed in real time, which has been elusive. In this study, we report a robust protocol for the production and stable delivery of microcrystals of the LOV domain of phototropin Phot-1 from Chlamydomonas reinhardtii (CrPhotLOV1) with a high-viscosity injector for time-resolved serial synchrotron crystallography (TR-SSX). The detailed process covers all aspects, from sample optimization to data collection, which may serve as a guide for soluble protein preparation for TR-SSX. In addition, we show that the crystals obtained preserve the photoreactivity using infrared spectroscopy. Furthermore, the results of the TR-SSX experiment provide high-resolution insights into structural alterations of CrPhotLOV1 from Δt = 2.5 ms up to Δt = 95 ms post-photoactivation, including resolving the geometry of the thio­ether adduct and the C-terminal region implicated in the signal transduction process.

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.

Time-resolved high-energy X-ray diffraction was used during growth of ultrathin NixFe3−xO4 films with varying Ni content (0 ≤ x ≤ 1.5) deposited on MgO(001) substrates by reactive molecular beam epitaxy, providing an insight into the growth dynamics of these films. In order to obtain structural information, reciprocal-space maps were recorded and the temporal evolution of the Bragg peaks specific to the octahedral and tetrahedral lattice sites of the inverse spinel structure of NixFe3−xO4 was observed during growth of the films. A time delay, corresponding to a coverage of 1.2–1.8 nm, between the appearance of the Bragg reflections originating from octahedral sites and reflections originating exclusively from tetrahedral sites indicates that the ferrite films grow in two stages. In the initial growth phase, a rock salt interface layer is formed. Afterwards, a structural transition occurs and the films grow in an inverse spinel structure. The thickness of the initial rock salt phase was found to increase with Ni content and to be responsible for atypical strain in the thin films. Films with Ni contents x > 1 do not show a structural transition. These films remain in a (deficient) rock salt structure consisting of a mixed Ni–Fe oxide and do not form a spinel structure at all. They show an increased number of NiO clusters as detected by X-ray photoelectron spectroscopy of the valence band, accompanied by a significant roughening of the films.

In crystallographic texture analysis, ensuring that sample directions are preserved from experiment to the resulting orientation distribution is crucial to obtain physical meaning from diffraction data. This work details a procedure to ensure instrument and sample coordinates are consistent when analyzing diffraction data with a Rietveld refinement using the texture analysis software MAUD. A quartz crystal is measured on the HIPPO diffractometer at Los Alamos National Laboratory for this purpose. The methods described here can be applied to any diffraction instrument measuring orientation distributions in polycrystalline materials.

X-ray absorption spectroscopy (XAS) is a promising technique for determining structural information from sensitive biological samples, but high-accuracy X-ray absorption fine structure (XAFS) requires corrections of systematic errors in experimental data. Low-temperature XAS and room-temperature X-ray absorption spectro-electrochemical (XAS-EC) measurements of N-truncated amyloid-β samples were collected and corrected for systematic effects such as dead time, detector efficiencies, monochromator glitches, self-absorption, radiation damage and noise at higher wavenumber (k). A new protocol was developed using extended X-ray absorption fine structure (EXAFS) data analysis for monitoring radiation damage in real time and post-analysis. The reliability of the structural determinations and consistency were validated using the XAS measurement experimental uncertainty. The correction of detector pixel efficiencies improved the fitting χ2 by 12%. An improvement of about 2.5% of the structural fitting was obtained after dead-time corrections. Normalization allowed the elimination of 90% of the monochromator glitches. The remaining glitches were manually removed. The dispersion of spectra due to self-absorption was corrected. Standard errors of experimental measurements were propagated from pointwise variance of the spectra after systematic corrections. Calculated uncertainties were used in structural refinements for obtaining precise and reliable values of structural parameters including atomic bond lengths and thermal parameters. This has permitted hypothesis testing.

An anomalous ultra-small-angle X-ray scattering (AUSAXS) system has been constructed at BL28XU at SPring-8 for time-resolved AUSAXS experiments. The path length was extended to 9.1 m and a minimum of q = 0.0069 nm−1 was attained. Scattering profiles at 0.0069 to 0.3 nm−1 were successfully obtained at 17 different X-ray energies in 30 s using the BL28XU optical setup, which enables adjustment of the energy of the incident X-rays quickly without the beam position drifting. Time-resolved measurements were conducted to investigate changes in the structure of zinc compounds in poly(styrene-ran-butadiene) rubber during vulcanization. A change in energy dependence of the scattered intensity with time was found during vulcanization, suggesting the transformation of zinc in the reaction.

In antiquity, Pb was a common element added in the production of large bronze artifacts, especially large statues, to impart fluidity to the casting process. As Pb does not form a solid solution with pure Cu or with the Sn–Cu alloy phases, it is normally observed in the metal matrix as globular droplets embedded within or in interstitial positions among the crystals of Sn-bronze (normally the α phase) as the last crystallizing phase during the cooling process of the Cu–Sn–Pb ternary melt. The disequilibrium Sn content of the Pb droplets has recently been suggested as a viable parameter to detect modern materials [Shilstein, Berner, Feldman, Shalev & Rosenberg (2019). STAR Sci. Tech. Archaeol. Res. 5, 29–35]. The application assumes a time-dependent process, with a timescale of hundreds of years, estimated on the basis of the diffusion coefficient of Sn in Pb over a length of a few micrometres [Oberschmidt, Kim & Gupta (1982). J. Appl. Phys. 53, 5672–5677]. Therefore, Pb inclusions in recent Sn-bronze artifacts are actually a metastable solid solution of Pb–Sn containing ∼3% atomic Sn. In contrast, in ancient artifacts, unmixing processes and diffusion of Sn from the micro- and nano-inclusions of Pb to the matrix occur, resulting in the Pb inclusions containing a substantially lower or negligible amount of Sn. The Sn content in the Pb inclusions relies on accurate measurement of the lattice parameter of the phase in the Pb–Sn solid solution, since for low Sn values it closely follows Vegard's law. Here, several new measurements on modern and ancient samples are presented and discussed in order to verify the applicability of the method to the detection of modern artwork pretending to be ancient.

Neutron spectroscopy uniquely and non-destructively accesses diffusive dynamics in soft and biological matter, including for instance proteins in hydrated powders or in solution, and more generally dynamic properties of condensed matter on the molecular level. Given the limited neutron flux resulting in long counting times, it is important to optimize data acquisition for the specific question, in particular for time-resolved (kinetic) studies. The required acquisition time was recently significantly reduced by measurements of discrete energy transfers rather than quasi-continuous neutron scattering spectra on neutron backscattering spectrometers. Besides this reduction in acquisition times, smaller amounts of samples can be measured with better statistics, and most importantly, kinetically changing samples, such as aggregating or crystallizing samples, can be followed. However, given the small number of discrete energy transfers probed in this mode, established analysis frameworks for full spectra can break down. Presented here are new approaches to analyze measurements of diffusive dynamics recorded within fixed windows in energy transfer, and these are compared with the analysis of full spectra. The new approaches are tested by both modeled scattering functions and a comparative analysis of fixed energy window data and full spectra on well understood reference samples. This new approach can be employed successfully for kinetic studies of the dynamics focusing on the short-time apparent center-of-mass diffusion.

Neutron diffraction beamlines have traditionally relied on deploying large detector arrays of 3He tubes or neutron-sensitive scintillators coupled with photomultipliers to efficiently probe crystallographic and microstructure information of a given material. Given the large upfront cost of custom-made data acquisition systems and the recent scarcity of 3He, new diffraction beamlines or upgrades to existing ones demand innovative approaches. This paper introduces a novel Timepix3-based event-mode imaging neutron diffraction detector system as well as first results of a silicon powder diffraction measurement made at the HIPPO neutron powder diffractometer at the Los Alamos Neutron Science Center. Notably, these initial measurements were conducted simultaneously with the 3He array on HIPPO, enabling direct comparison. Data reduction for this type of data was implemented in the MAUD code, enabling Rietveld analysis. Results from the Timepix3-based setup and HIPPO were benchmarked against McStas simulations, showing good agreement for peak resolution. With further development, systems such as the one presented here may substantially reduce the cost of detector systems for new neutron instrumentation as well as for upgrades of existing beamlines.

X-ray photon correlation spectroscopy (XPCS) is a powerful tool for the investigation of dynamics covering a broad range of timescales and length scales. The two-time correlation function (TTC) is commonly used to track non-equilibrium dynamical evolution in XPCS measurements, with subsequent extraction of one-time correlations. While the theoretical foundation for the quantitative analysis of TTCs is primarily established for equilibrium systems, where key parameters such as the diffusion coefficient remain constant, non-equilibrium systems pose a unique challenge. In such systems, different projections (`cuts') of the TTC may lead to divergent results if the underlying fundamental parameters themselves are subject to temporal variations. This article explores widely used approaches for TTC calculations and common methods for extracting relevant information from correlation functions, particularly in the light of comparing dynamics in equilibrium and non-equilibrium systems.

With the emergence of ultrafast X-ray sources, interest in following fast processes in small molecules and macromolecules has increased. Most of the current research into ultrafast structural dynamics of macromolecules uses X-ray free-electron lasers. In parallel, small-scale laboratory-based laser-driven ultrafast X-ray sources are emerging. Continuous development of these sources is underway, and as a result many exciting applications are being reported. However, because of their low flux, such sources are not commonly used to study the structural dynamics of macromolecules. This article examines the feasibility of time-resolved powder diffraction of macromolecular microcrystals using a laboratory-scale laser-driven ultrafast X-ray source.

A neutron time-of-flight (TOF) powder diffractometer with a continuous wide-angle array of detectors can be electronically focused to make a single pseudo-constant wavelength diffraction pattern, thus facilitating angle-dependent intensity corrections. The resulting powder diffraction peak profiles are affected by the neutron source emission profile and resemble the function currently used for TOF diffraction.

Hollywood billboard queen, Angelyne was featured on the first Off-Ramp episode producer Chris Greenspon ever heard.; Credit: Creative Commons via Flickr user Thomas Hawk

After a few semesters of college radio at Mt. San Antonio College, I landed my first radio job: Board Operator! At struggling KFWB Newstalk 980. My career in radio began the way it does for so many, working odd hours and weekends.

A few months into my new gig, I was leaving for work and I thought, “You know, if I’m going to work in radio, I should listen to the radio.” I drove over the bridge on Hacienda Boulevard in La Puente, heading towards the 60, and right in front of my on-ramp, there was a big, orange billboard for KPCC. Why not 89.3?

The first thing I heard (and I should clarify that this was also my first time ever hearing public radio) was Janis Joplin getting her star on the Hollywood Walk of Fame, on Off-Ramp. Clive Davis, the CBS A&R executive who signed Joplin, told the crowd about how Joplin had suggested sealing their new relationship by having sex (though he demurred), and that his heart was broken when she died. Then Kris Kristofferson sang “Me & Bobby McGee,” and I was smiling, until I heard a chorus of hippies singing "Mercedes Benz." Pee-yew!

“Should I stay?” I asked myself. How could I not, when someone named Dylan Brody came on and told a story about letting his dogs poop on the neighbor’s lawn? But then, the real cheese, for a 20-something year old, biracial kid who loved space ships and tough punk girls; "Love and Rockets" cartoonist Jaime Hernandez talking about drawing for Junot Diaz.

All this was to say nothing of the loud, defiant-sounding host, who kept saying. "This is Off-Ramp, I’m John Rabe." I listened to him slide between all of these topics, and even report from the field himself, talking about museums in a way that wasn’t – boring. After a few more pieces and a few more uses of the Off-Ramp theme song, I had a new favorite show. And I suspect a few other people did too.

That was November 2013. Five months later, I was on the show. At the end of the episode, I noticed that they had an intern in the credits, and after many repeated scourings of the KPCC careers page, the position finally opened up. So what’d I do? I went out with my chintzy audio recorder, and recorded a story so if I got an interview, I wouldn’t go in empty-handed. I didn’t get the internship then, but John did buy the piece. Remember the one about the Burmese Café run by an ex-biologist?

I kept freelancing after that, and honestly, I got a lot of my ideas from stuff that Off-Ramp wasn’t doing. John would have Angelyne, and her famous Hollywood billboard, but what about the giant neon sign at Rose Hills Cemetery in Pico Rivera? Kevin Ferguson would hang out with Mike Watt from the Minutemen, but what about punk supergroup, the Flesh Eaters? And could we talk about a domestic violence shelter in a Thanksgiving Special, or the fact that a home-abortion movement started in Los Angeles?

John eventually asked me to intern after turning the Jim Tully mini-documentary in, and even after joining the company, writing these kinds of stories for Off-Ramp was still not easy, but there was room for all of them. I would be beyond thrilled if somebody heard even one of them when they heard Off-Ramp for the first time.

This content is from Southern California Public Radio. View the original story at SCPR.org.

Source: Jeremy Hoy 11/06/2024

O3 Mining Inc. (TSXV:OIII; OTCQX:OIIIF) announced it now intends to release a completed preliminary economic assessment (PEA) of its Marban Alliance project near Val d'Or in Quebec, Canada, in Q4/24, ahead of the previously planned feasibility study (FS), reported Canaccord Genuity analyst Jeremy Hoy in an Oct. 30 research note.

"Given the time passed since the 2022 prefeasibility study (PFS), moderate inflation, and the run-up in the gold price, we expect to see incremental increases to costs and capex, and likely higher commodity price assumptions for resources in the PEA," Hoy wrote.

Potential Gain of 254%

Canaccord Genuity reiterated its CA$4 per share price target on O3 Mining, trading at the time of the report at about CA$1.13 per share, noted Hoy. From the current price, the return to target is 254%.

The Canadian explorer-developer is a Speculative Buy.

PEA in Progress

Management indicated the PEA will encompass advancements at Marban Alliance made since the PFS, including optimized mining and processing parameters, as well as additional resources, Hoy reported. These additional ounces will come from conversion of resources at the current pits along with the Malartic H zone's 342,000 ounce gold resource.

The PEA and FS will showcase a standalone operation. O3 is evaluating toll milling options separately.

What To Expect, Watch For

Hoy presented the next steps for Marban Alliance, which are potential catalysts for O3 Mining.

Following the completion of the PEA in Q4/24, environmental baseline studies will be finished in Q1/25. The start of impact studies will follow in Q2/25. An FS on the gold project will be done in H2/25. The impact study results will be filed in Q1/26.

Meanwhile, exploration results from Horizon and Kinebik will be released as they become available. Mergers and acquisitions activity is yet another potential stock-moving event.

"O3 is progressing Marban Alliance as a standalone project, but we continue to view [the company] as an important component in any Val d'Or consolidation discussion given its proximity to existing operations and other projects of scale in the region," wrote Hoy.

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