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Seoul City to Enforce Traffic Control Measures on Annual College Entrance Exam Day

[Domestic] :
The Seoul Metropolitan Government will enforce comprehensive measures to control traffic when the annual college entrance exam takes place on Thursday. According to city officials on Monday, work hours at public offices in the city will start an hour late at 10 a.m. Thursday to prevent exam-takers from ...

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Annual 'Turn Toward Busan' Ceremony Held to Honor UN Troops during Korean War

[Domestic] :
An annual commemorative ceremony honoring the sacrifices of United Nations Forces during the Korean War was held on Monday at the UN Memorial Cemetery in the southeastern port city of Busan. This year's "Turn Toward Busan" event began with a burial of an unknown soldier of the UN Forces, whose remains were ...

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S. Korean Military: Hwasong-19 a New Kind of Missile, Support from Russia Cannot Be Ruled Out

[Inter-Korea] :
The South Korean military believes the Hwasong-19, the intercontinental ballistic missile(ICBM) that North Korea test-fired on October 31, is a new model that Pyongyang may have developed with technological assistance from Moscow. In a report disclosed Monday by the office of ruling People Power Party ...

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Gov't to Announce Interim Results from Audit into KFA, Nat'l Team Head Coach Appointment

[Sports] :
The government is expected to announce next Wednesday interim results from an audit into the Korea Football Association's(KFA) appointment of Hong Myung-bo as head coach of the men's national team. Yu In-chon, minister of culture, sports and tourism, told the parliamentary culture and sports ...

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Gov't Holds Annual Silicon Valley Expo to Support S. Korean Firms in AI, Digital Sectors

[Science] :
The government held an annual conference and exhibition at Silicon Valley in the U.S. to give support to South Korean firms in the AI and digital sectors making inroads into the U.S. market. According to the ICT ministry on Saturday, the two-day K-Global@Silicon Valley 2024, marking its 13th year, ...

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Archangel Gabriel: Messenger and Angel of the Annunciation

Archangel Gabriel is one of the most revered and influential figures in religious traditions across the world, often seen as a messenger of divine will and a guide to those seeking spiritual clarity.




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Unlocking Efficiency: How a Route Planner App Can Save Time and Reduce Stress

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.




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Red Velvet to celebrate 10th debut anniversary with fan concert tour

Red Velvet will celebrate its 10th debut anniversary with a fan concert tour.The two-day live event called “Happiness: My Dear, ReVeLuv” will kick off in Seoul on Aug. 3. Meanwhile, the group will...

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[4K] SEVENTEEN, CNBLUE, AB6IX, Billlie, SAY MY NAME, YENA, EPEX, VANNER, Xdinary Heroes, JD1 | On the way to music bank 241018


On the morning of October 18, at Yeoido KBS HallKBS WORLD Radio filmed K-pop stars making their way to attend rehearsals for Music Bank.

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Annual Korea Sale FESTA Kicks Off Saturday

[Economy] :
An annual shopping event officially kicks off Saturday, bringing discounts on food, clothing and other products. According to the Ministry of Trade, Industry and Energy, an opening ceremony for Korea Sale FESTA took place Friday afternoon in Seoul’s Myeongdong area. While discounts for automobiles ...

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A micro-beamstop with transmission detection by fluorescence for scanning-beam synchrotron scattering beamlines

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.




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Exploiting Friedel pairs to interpret scanning 3DXRD data from complex geological materials

A new processing technique for synchrotron scanning 3D X-ray diffraction data is introduced, utilizing symmetric Bragg reflections hkl and hkl, known as Friedel pairs. This technique is designed to tackle the difficulties associated with large, highly deformed, polyphase materials, especially geological samples.




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Effect of thickness and noise on angular correlation analysis from scanning electron nanobeam diffraction of disordered carbon

The impact of sample thickness and experimental noise on angular correlation analysis from scanning electron nanobeam diffraction patterns of disordered carbon are investigated and analyzed regarding the interpretability of the analysis results.




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A micro-beamstop with transmission detection by fluorescence for scanning-beam synchrotron scattering beamlines

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.




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Exploiting Friedel pairs to interpret scanning 3DXRD data from complex geological materials

The present study introduces a processing strategy for synchrotron scanning 3D X-ray diffraction (s3DXRD) data, aimed at addressing the challenges posed by large, highly deformed, polyphase materials such as crystalline rocks. Leveraging symmetric Bragg reflections known as Friedel pairs, our method enables diffraction events to be precisely located within the sample volume. This method allows for fitting the phase, crystal structure and unit-cell parameters at the intra-grain scale on a voxel grid. The processing workflow incorporates several new modules, designed to (i) efficiently match Friedel pairs in large s3DXRD datasets containing up to 108 diffraction peaks; (ii) assign phases to each pixel or voxel, resolving potential ambiguities arising from overlap in scattering angles between different crystallographic phases; and (iii) fit the crystal orientation and unit cell locally on a point-by-point basis. We demonstrate the effectiveness of our technique on fractured granite samples, highlighting the ability of the method to characterize complex geological materials and show their internal structure and mineral composition. Additionally, we include the characterization of a metal gasket made of a commercial aluminium alloy, which surrounded the granite sample during experiments. The results show the effectiveness of the technique in recovering information about the internal texture and residual strain of materials that have undergone high levels of plastic deformation.




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Efficient boundary-guided scanning for high-resolution X-ray ptychography

In the realm of X-ray ptychography experiments, a considerable amount of ptychography scans are typically performed within a field of view encompassing the target sample. While it is crucial to obtain overlapping scans in small increments over the region of interest for achieving high-resolution sample reconstruction, a significant number of these scans often redundantly measure the empty background within the wide field of view. To address this inefficiency, an innovative algorithm is proposed that introduces automatic guidance for data acquisition. The algorithm first directs the scan point to actively search for the object of interest within the field of view. Subsequently, it intelligently scans along the perimeter of the sample, strategically acquiring measurements exclusively within the boundary of the region of interest. By employing this approach, a reduction in the number of measurements required to obtain high-resolution reconstruction images is demonstrated, as compared with conventional raster scanning methods. Furthermore, the automatic guidance provided by the algorithm offers the added advantage of saving valuable time during the reconstruction process. Through practical implementation on real experiments, these findings showcase the efficacy of the proposed algorithm in enhancing the efficiency and accuracy of X-ray ptychography experiments. This novel approach holds immense potential for advancing sample analysis and imaging techniques in various scientific disciplines.




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xrdPlanner: exploring area detector geometries for powder diffraction and total scattering experiments

xrdPlanner is a software package designed to aid in the planning and preparation of powder X-ray diffraction and total scattering beam times at synchrotron facilities. Many modern beamlines provide a flexible experimental setup and may have several different detectors available. In combination with a range of available X-ray energies, it often makes it difficult for the user to explore the available parameter space relevant for a given experiment prior to the scheduled beam time. xrdPlanner was developed to provide a fast and straightforward tool that allows users to visualize the accessible part of reciprocal space of their experiment at a given combination of photon energy and detector geometry. To plan and communicate the necessary geometry not only saves time but also helps the beamline staff to prepare and accommodate for an experiment. The program is tailored toward powder X-ray diffraction and total scattering experiments but may also be useful for other experiments that rely on an area detector and for which detector placement and achievable momentum-transfer range are important experimental parameters.




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A new experimental setup for combined fast differential scanning calorimetry and X-ray photon correlation spectroscopy

Synchrotron-radiation-based techniques are a powerful tool for the investigation of materials. In particular, the availability of highly brilliant sources has opened the possibility to develop techniques sensitive to dynamics at the atomic scale such as X-ray photon correlation spectroscopy (XPCS). XPCS is particularly relevant in the study of glasses, which have been often investigated at the macroscopic scale by, for example, differential scanning calorimetry. Here, we show how to adapt a Flash calorimeter to combine XPCS and calorimetric scans. This setup paves the way to novel experiments requiring dynamical and thermodynamic information, ranging from the study of the crystallization kinetics to the study of the glass transition in systems that can be vitrified thanks to the high cooling rates reachable with an ultrafast calorimeter.




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3D imaging of magnetic domains in Nd2Fe14B using scanning hard X-ray nanotomography

Nanoscale structural and electronic heterogeneities are prevalent in condensed matter physics. Investigating these heterogeneities in 3D has become an important task for understanding material properties. To provide a tool to unravel the connection between nanoscale heterogeneity and macroscopic emergent properties in magnetic materials, scanning transmission X-ray microscopy (STXM) is combined with X-ray magnetic circular dichroism. A vector tomography algorithm has been developed to reconstruct the full 3D magnetic vector field without any prior noise assumptions or knowledge about the sample. Two tomographic scans around the vertical axis are acquired on single-crystalline Nd2Fe14B pillars tilted at two different angles, with 2D STXM projections recorded using a focused 120 nm X-ray beam with left and right circular polarization. Image alignment and iterative registration have been implemented based on the 2D STXM projections for the two tilts. Dichroic projections obtained from difference images are used for the tomographic reconstruction to obtain the 3D magnetization distribution at the nanoscale.




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X-ray scattering based scanning tomography for imaging and structural characterization of cellulose in plants

X-ray and neutron scattering have long been used for structural characterization of cellulose in plants. Due to averaging over the illuminated sample volume, these measurements traditionally overlooked the compositional and morphological heterogeneity within the sample. Here, a scanning tomographic imaging method is described, using contrast derived from the X-ray scattering intensity, for virtually sectioning the sample to reveal its internal structure at a resolution of a few micrometres. This method provides a means for retrieving the local scattering signal that corresponds to any voxel within the virtual section, enabling characterization of the local structure using traditional data-analysis methods. This is accomplished through tomographic reconstruction of the spatial distribution of a handful of mathematical components identified by non-negative matrix factorization from the large dataset of X-ray scattering intensity. Joint analysis of multiple datasets, to find similarity between voxels by clustering of the decomposed data, could help elucidate systematic differences between samples, such as those expected from genetic modifications, chemical treatments or fungal decay. The spatial distribution of the microfibril angle can also be analyzed, based on the tomographically reconstructed scattering intensity as a function of the azimuthal angle.




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New achievements in orbital angular momentum beam characterization using a Hartmann wavefront sensor and the Kirkpatrick–Baez active optical system KAOS

Advances in physics have been significantly driven by state-of-the-art technology, and in photonics and X-ray science this calls for the ability to manipulate the characteristics of optical beams. Orbital angular momentum (OAM) beams hold substantial promise in various domains such as ultra-high-capacity optical communication, rotating body detection, optical tweezers, laser processing, super-resolution imaging etc. Hence, the advancement of OAM beam-generation technology and the enhancement of its technical proficiency and characterization capabilities are of paramount importance. These endeavours will not only facilitate the use of OAM beams in the aforementioned sectors but also extend the scope of applications in diverse fields related to OAM beams. At the FERMI Free-Electron Laser (Trieste, Italy), OAM beams are generated either by tailoring the emission process on the undulator side or, in most cases, by coupling a spiral zone plate (SZP) in tandem with the refocusing Kirkpatrick–Baez active optic system (KAOS). To provide a robust and reproducible workflow to users, a Hartmann wavefront sensor (WFS) is used for both optics tuning and beam characterization. KAOS is capable of delivering both tightly focused and broad spots, with independent control over vertical and horizontal magnification. This study explores a novel non-conventional `near collimation' operational mode aimed at generating beams with OAM that employs the use of a lithographically manufactured SZP to achieve this goal. The article evaluates the mirror's performance through Hartmann wavefront sensing, offers a discussion of data analysis methodologies, and provides a quantitative analysis of these results with ptychographic reconstructions.




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Diisobutyl­ammonium tri­phenyl(2-thiolato­acetato-κ2O,S)stannate(IV)

Crystals of the title salt, (C8H20N)[Sn(C6H5)3(C2H2O2S)], comprise diisobutyl­ammonium cations and mercapto­acetato­tri­phenyl­stannate(IV) anions. The bidentate binding mode of the mercapto­acetate ligand gives rise to a five-coordinated, ionic tri­phenyl­tin complex with a distorted cis-trigonal–bipyramidal geometry around the tin atom. In the crystal, charge-assisted ammonium-N—H⋯O(carboxyl­ate) hydrogen-bonding connects two cations and two anions into a four-ion aggregate. Two positions were resolved for one of the phenyl rings with the major component having a site occupancy factor of 0.60 (3).




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Investigation of how gate residues in the main channel affect the catalytic activity of Scytalidium thermophilum catalase

Catalase is an antioxidant enzyme that breaks down hydrogen peroxide (H2O2) into molecular oxygen and water. In all monofunctional catalases the pathway that H2O2 takes to the catalytic centre is via the `main channel'. However, the structure of this channel differs in large-subunit and small-subunit catalases. In large-subunit catalases the channel is 15 Å longer and consists of two distinct parts, including a hydrophobic lower region near the heme and a hydrophilic upper region where multiple H2O2 routes are possible. Conserved glutamic acid and threonine residues are located near the intersection of these two regions. Mutations of these two residues in the Scytalidium thermophilum catalase had no significant effect on catalase activity. However, the secondary phenol oxidase activity was markedly altered, with kcat and kcat/Km values that were significantly increased in the five variants E484A, E484I, T188D, T188I and T188F. These variants also showed a lower affinity for inhibitors of oxidase activity than the wild-type enzyme and a higher affinity for phenolic substrates. Oxidation of heme b to heme d did not occur in most of the studied variants. Structural changes in solvent-chain integrity and channel architecture were also observed. In summary, modification of the main-channel gate glutamic acid and threonine residues has a greater influence on the secondary activity of the catalase enzyme, and the oxidation of heme b to heme d is predominantly inhibited by their conversion to aliphatic and aromatic residues.




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Crystallographic fragment-binding studies of the Mycobacterium tuberculosis trifunctional enzyme suggest binding pockets for the tails of the acyl-CoA substrates at its active sites and a potential substrate-channeling path between them

The Mycobacterium tuberculosis trifunctional enzyme (MtTFE) is an α2β2 tetrameric enzyme in which the α-chain harbors the 2E-enoyl-CoA hydratase (ECH) and 3S-hydroxyacyl-CoA dehydrogenase (HAD) active sites, and the β-chain provides the 3-ketoacyl-CoA thiolase (KAT) active site. Linear, medium-chain and long-chain 2E-enoyl-CoA molecules are the preferred substrates of MtTFE. Previous crystallographic binding and modeling studies identified binding sites for the acyl-CoA substrates at the three active sites, as well as the NAD binding pocket at the HAD active site. These studies also identified three additional CoA binding sites on the surface of MtTFE that are different from the active sites. It has been proposed that one of these additional sites could be of functional relevance for the substrate channeling (by surface crawling) of reaction intermediates between the three active sites. Here, 226 fragments were screened in a crystallographic fragment-binding study of MtTFE crystals, resulting in the structures of 16 MtTFE–fragment complexes. Analysis of the 121 fragment-binding events shows that the ECH active site is the `binding hotspot' for the tested fragments, with 41 binding events. The mode of binding of the fragments bound at the active sites provides additional insight into how the long-chain acyl moiety of the substrates can be accommodated at their proposed binding pockets. In addition, the 20 fragment-binding events between the active sites identify potential transient binding sites of reaction intermediates relevant to the possible channeling of substrates between these active sites. These results provide a basis for further studies to understand the functional relevance of the latter binding sites and to identify substrates for which channeling is crucial.




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Scanning WAXS microscopy of regenerated cellulose fibers at mesoscopic resolution

In this work, regenerated cellulose textile fibers, Ioncell-F, dry-wet spun with different draw ratios, have been investigated by scanning wide-angle X-ray scattering (WAXS) using a mesoscopic X-ray beam. The fibers were found to be homogeneous on the 500 nm length scale. Analysis of the azimuthal angular dependence of a crystalline Bragg spot intensity revealed a radial dependence of the degree of orientation of crystallites that was found to increase with the distance from the center of the fiber. We attribute this to radial velocity gradients during the extrusion of the spin dope and the early stage of drawing. On the other hand, the fiber crystallinity was found to be essentially homogeneous over the fiber cross section.




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Crystallographic phase identifier of a convolutional self-attention neural network (CPICANN) on powder diffraction patterns

Spectroscopic data, particularly diffraction data, are essential for materials characterization due to their comprehensive crystallographic information. The current crystallographic phase identification, however, is very time consuming. To address this challenge, we have developed a real-time crystallographic phase identifier based on a convolutional self-attention neural network (CPICANN). Trained on 692 190 simulated powder X-ray diffraction (XRD) patterns from 23 073 distinct inorganic crystallographic information files, CPICANN demonstrates superior phase-identification power. Single-phase identification on simulated XRD patterns yields 98.5 and 87.5% accuracies with and without elemental information, respectively, outperforming JADE software (68.2 and 38.7%, respectively). Bi-phase identification on simulated XRD patterns achieves 84.2 and 51.5% accuracies, respectively. In experimental settings, CPICANN achieves an 80% identification accuracy, surpassing JADE software (61%). Integration of CPICANN into XRD refinement software will significantly advance the cutting-edge technology in XRD materials characterization.




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Crystal structure of (1,4,7,10,13,16-hexa­oxa­cycloocta­decane-κ6O)potassium-μ-oxalato-tri­phenylstannate(IV), the first reported 18-crown-6-stabilized potassium salt of tri­phenyl­oxalatostannate

The title complex, (1,4,7,10,13,16-hexa­oxa­cyclo­octa­decane-1κ6O)(μ-oxalato-1κ2O1,O2:2κ2O1',O2')triphenyl-2κ3C-potassium(I)tin(IV), [KSn(C6H5)3(C2O4)(C12H24O6)] or K[18-Crown-6][(C6H5)3SnO4C2], was synthesized. The complex consists of a potassium cation coordinated to the six oxygen atoms of a crown ether mol­ecule and the two oxygen atoms of the oxalatotri­phenyl­stannate anion. It crystallizes in the monoclinic crystal system within the space group P21. The tin atom is coordinated by one chelating oxalate ligand and three phenyl groups, forming a cis-trigonal–bipyramidal geometry around the tin atom. The cations and anions form ion pairs, linked through carbonyl coordination to the potassium atoms. The crystal structure features C—H⋯O hydrogen bonds between the oxygen atoms of the oxalate group and the hydrogen atoms of the phenyl groups, resulting in an infinite chain structure extending along a-axis direction. The primary inter-chain inter­actions are van der Waals forces.




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Quality assessment of the wide-angle detection option planned at the high-intensity/extended Q-range SANS diffractometer KWS-2 combining experiments and McStas simulations

For a reliable characterization of materials and systems featuring multiple structural levels, a broad length scale from a few ångström to hundreds of nanometres must be analyzed and an extended Q range must be covered in X-ray and neutron scattering experiments. For certain samples or effects, it is advantageous to perform such characterization with a single instrument. Neutrons offer the unique advantage of contrast variation and matching by D-labeling, which is of great value in the characterization of natural or synthetic polymers. Some time-of-flight small-angle neutron scattering (TOF-SANS) instruments at neutron spallation sources can cover an extended Q range by using a broad wavelength band and a multitude of detectors. The detectors are arranged to cover a wide range of scattering angles with a resolution that allows both large-scale morphology and crystalline structure to be resolved simultaneously. However, for such analyses, the SANS instruments at steady-state sources operating in conventional monochromatic pinhole mode rely on additional wide-angle neutron scattering (WANS) detectors. The resolution must be tuned via a system of choppers and a TOF data acquisition option to reliably measure the atomic to mesoscale structures. The KWS-2 SANS diffractometer at Jülich Centre for Neutron Science allows the exploration of a wide Q range using conventional pinhole and lens focusing modes and an adjustable resolution Δλ/λ between 2 and 20%. This is achieved through the use of a versatile mechanical velocity selector combined with a variable slit opening and rotation frequency chopper. The installation of WANS detectors planned on the instrument required a detailed analysis of the quality of the data measured over a wide angular range with variable resolution. This article presents an assessment of the WANS performance by comparison with a McStas [Willendrup, Farhi & Lefmann (2004). Physica B, 350, E735–E737] simulation of ideal experimental conditions at the instrument.




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Characterization of sub-micrometre-sized voids in fixed human brain tissue using scanning X-ray microdiffraction

Using a 5 µm-diameter X-ray beam, we collected scanning X-ray microdiffraction in both the small-angle (SAXS) and the wide-angle (WAXS) regimes from thin sections of fixed human brain tissue from Alzheimer's subjects. The intensity of scattering in the SAXS regime of these patterns exhibits essentially no correlation with the observed intensity in the WAXS regime, indicating that the structures responsible for these two portions of the diffraction patterns, which reflect different length scales, are distinct. SAXS scattering exhibits a power-law behavior in which the log of intensity decreases linearly with the log of the scattering angle. The slope of the log–log curve is roughly proportional to the intensity in the SAXS regime and, surprisingly, inversely proportional to the intensity in the WAXS regime. We interpret these observations as being due to the presence of sub-micrometre-sized voids formed during dehydration of the fixed tissue. The SAXS intensity is due largely to scattering from these voids, while the WAXS intensity derives from the secondary structures of macromolecular material surrounding the voids. The ability to detect and map the presence of voids within thin sections of fixed tissue has the potential to provide novel information on the degradation of human brain tissue in neurodegenerative diseases.




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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

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.




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Correlative X-ray micro-nanotomography with scanning electron microscopy at the Advanced Light Source

Geological samples are inherently multi-scale. Understanding their bulk physical and chemical properties requires characterization down to the nano-scale. A powerful technique to study the three-dimensional microstructure is X-ray tomography, but it lacks information about the chemistry of samples. To develop a methodology for measuring the multi-scale 3D microstructure of geological samples, correlative X-ray micro- and nanotomography were performed on two rocks followed by scanning electron microscopy with energy-dispersive spectroscopy (SEM-EDS) analysis. The study was performed in five steps: (i) micro X-ray tomography was performed on rock sample cores, (ii) samples for nanotomography were prepared using laser milling, (iii) nanotomography was performed on the milled sub-samples, (iv) samples were mounted and polished for SEM analysis and (v) SEM imaging and compositional mapping was performed on micro and nanotomography samples for complimentary information. Correlative study performed on samples of serpentine and basalt revealed multiscale 3D structures involving both solid mineral phases and pore networks. Significant differences in the volume fraction of pores and mineral phases were also observed dependent on the imaging spatial resolution employed. This highlights the necessity for the application of such a multiscale approach for the characterization of complex aggregates such as rocks. Information acquired from the chemical mapping of different phases was also helpful in segmentation of phases that did not exhibit significant contrast in X-ray imaging. Adoption of the protocol used in this study can be broadly applied to 3D imaging studies being performed at the Advanced Light Source and other user facilities.




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Celebrating JSR's 30th anniversary: reminiscences of a Main Editor




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Gold Co. Announces Resource Expansion Results in Historic Mining District

Source: Streetwise Reports 11/07/2024

Dakota Gold Corp. (DC:NYSE American) announces results from 17 holes in its bid to expand the maiden resource at its Richmond Hill Gold Project in the historic Homestake District of South Dakota. One analyst believes the results support expansion for future resource estimates.

Dakota Gold Corp. (DC:NYSE American) announced drill results from the first 17 holes of its ongoing infill drilling program to expand the maiden resource at its Richmond Hill Gold Project in the historic Homestake District of South Dakota.

An updated S-K 1300 resource estimate is planned for Q1 2025 and a S-K 1300 Initial Assessment with cashflow analysis is planned for Q2 2025, the company said in a release. The expanded resource is expected to include an additional 88 new drill holes totaling 17,000 meters.

"The highlight of this morning's release was (hole) RH24C-099, which was drilled in the Twin Tunnels Zone and returned 1.15 g/t Au (grams per tonne gold) over 51.7 meters from 132.9 meters," wrote Canaccord Genuity Capital Markets Analyst Peter Bell in an updated research note on Monday. "The results this morning were consistent with the current resource at Richmond Hill, with many cases reporting higher-than-average grades."

Bell said the firm was encouraged by the results, "which we believe provide support for expansion in future resource estimates. With infill and step out drilling at Richmond Hill being just one of three ongoing drill programs currently underway at Dakota, underscoring the company's emphasis on exploration and expansion."

Drilling Is 'Adding Ounces'

The maiden S-K 1300 resource, announced in April, outlined an Indicated Resource of 51.83 million tonnes (Mt) at 0.80 g/t Au for 1.33 million ounces (Moz) and Inferred Resource of 58.06 Mt at 0.61 g/t Au for 1.13 Moz., the company said.

The initial infill drill results release released Monday encountered further gold mineralization from the central portion of the Richmond Hill resource area consistent with results reported in the maiden resource, Dakota said. The drilling was conducted in areas where the original resource block model contained gaps to support the company's belief that the initial resource could be significantly expanded with additional infill drilling.

Highlights of the results include:

  • Hole RH24C-077: 0.76 g/t Au over 24.4 meters
  • Hole RH24C-083: 0.70 g/t Au over 13.8 meters
  • Hole RH24C-085: 1.10 g/t Au over 17.9 meters
  • Hole RH24C-088A: 0.96 g/t Au over 41.5 meters
  • Hole RH24C-099: 1.15 g/t Au over 51.7 meters

Dakota said the resource remained open in all directions and could be improved with more drilling, metallurgical work, and incorporation of silver into the resource.

"We are very pleased to see that initial results from our infill drill program are adding ounces to our current S-K 1300 resource," said Dakota Vice President of Exploration James Berry. "The results to date show grades and widths consistent with drill holes in the original block model and support an expansion of gold mineralization, including shallow oxide mineralization. We look forward to continuing our infill program on the other zones identified in our Initial assessment for follow-up drilling."

'Vastly Unexplored' District

The historic Homestake Mine produced 41 Moz Au and 9 Moz silver (Ag) over 126 years. The company has 48,000 acres of holdings surrounding the original mine, which was first discovered in 1876 and consolidated by George Hearst.

Areas surrounding "super-giant deposits" like Homestake are believed to contain significant additional gold resources, wrote John Newell wrote.

Areas surrounding "super-giant deposits" like Homestake are believed to contain significant additional gold resources, wrote John Newell of John Newell & Associates this week for a Streetwise Reports piece on the legacy of the famous mine.

"Super-giant deposits are characterized by clusters of geologically similar deposits within several hundred square kilometers, defining profoundly mineralized regions," Newell wrote. "It is believed that at least twice that amount of gold exists in the neighborhood of these super giants. If that is true, then there are at least 100 Moz of gold left to be found in this vastly underexplored precious metal district of South Dakota."

This proximity to a super-giant "suggests a high potential for similar deposits," Newell wrote. "Being in the shadow of many old mines increases the probability of finding significant mineral resources."

The Catalyst: Gold Continues Bull Market

After hitting a record high of US$2,790.15 per ounce on Thursday, spot gold was up 0.1% to US$2,737.35 on Monday afternoon, according to Reuters.

Investors were keeping a close on Tuesday's presidential election in the U.S. and the Federal Reserve's meeting later this week, Anjana Anil reported.

"A Reuters/Ipsos poll conducted last month found worries that the U.S. could see a repeat of the unrest that followed Trump's 2020 election defeat, when his false claim that his loss was the result of fraud prompted hundreds to storm the U.S. Capitol," Anil wrote.

Gold's rise has "resulted in big returns for the investors who bought in earlier this year," Angelica Leicht reported for CBS News last month. "For example, the investors who purchased gold in March when it hit US$2,160 per ounce have seen their gold values increase by nearly 27% in the time since. That's a huge uptick in value in a matter of months, especially on an asset that's known more for long-term growth."

Recently polled London Bullion Market Association members indicated they believe the gold price could reach US$2,940/oz during 2025, reported Stockhead on Oct. 28.

"Combined with expectations of lower global interest rates, this further enhances gold's attractiveness as an investment," the article noted.[OWNERSHIP_CHART-7442]

As for gold equities, the S&P/TSX Venture Composite Index (SPCDNX) confirmed a multidecade bull run for junior, intermediate, and senior mining stocks when it closed above 1,000 recently, Stewart Thomson with 321Gold wrote. The index is a key indicator of the health of the general gold, silver, and mining stocks market.

Ownership and Share Structure

According to the company, approximately 25% of its shares are with management and insiders.

Out of management, Co-chairman, Director, President and Chief Executive Officer Robert Quartermain holds the most shares at 8.4%, while COO Jerry Aberle holds 4.8%, the company said.

About 26% of the shares are with institutional investors, according to Yahoo Finance and Edgar filings. Top institutional holders include Fourth Sail Capital with 5.3%, Van Eck Associates with 4.1%, Blackrock Institutional Trust Co. with 3.7%, The Vanguard Group Inc. with about 3.2%, Fidelity Management and Research Co. LLC with 2.7%, and CI Global Asset Management with 2.6%.

About 16.5% is with strategic investors, including Orion Mine Finance, which owns about 9.9%, and Barrick Gold Corp., which owns about 2.5%. The rest is retail.

Dakota Gold has a market cap of US$212.61 million, with 93.66 million shares outstanding. It trades in a 52-week range of US$3.25 and US$1.84.

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Important Disclosures:

  1. Dakota Gold Corp. is a billboard sponsor of Streetwise Reports and pays SWR a monthly sponsorship fee between US$4,000 and US$5,000.
  2. As of the date of this article, officers and/or employees of Streetwise Reports LLC (including members of their household) own securities of Dakota Gold Corp.
  3. Steve Sobek wrote this article for Streetwise Reports LLC and provides services to Streetwise Reports as an employee.
  4. This article does not constitute investment advice and is not a solicitation for any investment. Streetwise Reports does not render general or specific investment advice and the information on Streetwise Reports should not be considered a recommendation to buy or sell any security. Each reader is encouraged to consult with his or her personal financial adviser and perform their own comprehensive investment research. By opening this page, each reader accepts and agrees to Streetwise Reports' terms of use and full legal disclaimer. Streetwise Reports does not endorse or recommend the business, products, services or securities of any company.

For additional disclosures, please click here.

( Companies Mentioned: DC:NYSE American, )




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Boston Biotech Announces Novartis Collaboration

Source: Dr. Robert Driscoll 10/28/2024

Monte Rosa Therapeutics Inc. (GLUE:NASDAQ) recently unveiled a collaborative agreement with Novartis for the development of MRT-6160, its VAV1-degrader program, according to a Wedbush research note.

Wedbush analysts Dr. Robert Driscoll, Dr. Ritika Das, and Sam Ravina, in a research report published on October 28, 2024, maintained their Outperform rating on Monte Rosa Therapeutics Inc. (GLUE:NASDAQ) while raising their price target to US$15.00 from US$11.00. The report follows Monte Rosa's announcement of a collaborative agreement with Novartis for the development of MRT-6160, its VAV1-degrader program.

The analysts highlighted the significant financial terms of the agreement, stating, "GLUE will receive an upfront payment of US$150M as well as total milestone payments of up to US$2.1B that will include US$1.5B in potential development and regulatory milestones that begin upon Ph 2 studies."

Regarding the partnership structure, the analysts noted, "Upon start of Ph 3 studies, 30% US P&L would be shared with Ph 3 development co-fund and ex-US tiered royalties. Importantly, NVS will cover the complete costs of Ph 2 studies and will obtain worldwide rights to develop, commercialize and manufacture MRT-6160 as well as other VAV MGDs."

The analysts viewed this collaboration positively, stating, "We view this favorable collaboration agreement as an additional robust validation of GLUE's QuEEN MGD platform (noting Novartis' significant efforts in the degrader space), as well as an acknowledgment of the significant potential opportunities around targeting VAV1 with a first in class degrader."

They also emphasized the strategic benefits, noting, "Furthermore, we note the likely accelerated timelines for the MRT-6160 development program overall, and significant extension of GLUE's operational cash runway, which we expect to allow advancement of its deep pipeline."

The report highlighted the ongoing Phase 1 SAD/MAD healthy subject study for MRT-6160 in autoimmune diseases, with initial data expected in 1Q:25.

Wedbush's valuation methodology is based on sales multiples. The analysts explained, "Our PT is derived from applying a 6x multiple to estimated US sales and a 15x multiple to EU royalties of MRT-2359 in 2031, discounted by 30% annually."

The analysts also outlined several risk factors, including potential clinical and regulatory failure of MRT-2359, challenges in achieving sales estimates, and possible commercial competition from current and future therapies.

In conclusion, Wedbush's increased price target to US$15 reflects growing confidence in Monte Rosa Therapeutics following the Novartis collaboration agreement. The share price at the time of the report of US$8.05 represents a potential return of approximately 86% to the analysts' target price, highlighting the significant upside potential as the company advances its development programs with its new partner.

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Important Disclosures:

  1. This article does not constitute investment advice and is not a solicitation for any investment. Streetwise Reports does not render general or specific investment advice and the information on Streetwise Reports should not be considered a recommendation to buy or sell any security. Each reader is encouraged to consult with his or her personal financial adviser and perform their own comprehensive investment research. By opening this page, each reader accepts and agrees to Streetwise Reports' terms of use and full legal disclaimer. Streetwise Reports does not endorse or recommend the business, products, services or securities of any company.
  2. This article does not constitute medical advice. Officers, employees and contributors to Streetwise Reports are not licensed medical professionals. Readers should always contact their healthcare professionals for medical advice.

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Disclosures for Wedbush, Monte Rosa Therapeutics Inc., October 28, 2024

Analyst Certification We, Robert Driscoll, Ritika Das and Sam Ravina, certify that the views expressed in this report accurately reflect our personal opinions and that we have not and will not, directly or indirectly, receive compensation or other payments in connection with our specific recommendations or views contained in this report.

The Distribution of Ratings is required by FINRA rules; however, WS' stock ratings of Outperform, Neutral, and Underperform most closely conform to Buy, Hold, and Sell, respectively. Please note, however, the definitions are not the same as WS' stock ratings are on a relative basis. The analysts responsible for preparing research reports do not receive compensation based on specific investment banking activity. The analysts receive compensation that is based upon various factors including WS' total revenues, a portion of which are generated by WS' investment banking activities. Company Specific Disclosures This information is subject to change at any time. 2. WS managed a public offering of securities for Monte Rosa Therapeutics within the last 12 months. 4. WS has received compensation for investment banking services from Monte Rosa Therapeutics within the last 12 months. 5. WS provided Monte Rosa Therapeutics with investment banking services within the last 12 months.

Wedbush disclosure price charts are updated within the first fifteen days of each new calendar quarter per FINRA regulations. Price charts for companies initiated upon in the current quarter, and rating and target price changes occurring in the current quarter, will not be displayed until the following quarter. Additional information on recommended securities is available on request. Disclosure information regarding historical ratings and price targets is available: Research Disclosures *WS changed its rating system from (Strong Buy/ Buy/ Hold/ Sell) to (Outperform/ Neutral/ Underperform) on July 14, 2009. Applicable disclosure information is also available upon request by contacting the Research Department at (212) 833-1375, by email to leslie.lippai@wedbush.com. You may also submit a written request to the following: Wedbush Securities, Attn: Research Department, 142 W 57th Street, New York, NY 10019.

OTHER DISCLOSURES The information herein is based on sources that we consider reliable, but its accuracy is not guaranteed. The information contained herein is not a representation by this corporation, nor is any recommendation made herein based on any privileged information. This information is not intended to be nor should it be relied upon as a complete record or analysis: neither is it an offer nor a solicitation of an offer to sell or buy any security mentioned herein. This firm, Wedbush Securities, its officers, employees, and members of their families, or any one or more of them, and its discretionary and advisory accounts, may have a position in any security discussed herein or in related securities and may make, from time to time, purchases or sales thereof in the open market or otherwise. The information and expressions of opinion contained herein are subject to change without further notice. The herein mentioned securities may be sold to or bought from customers on a principal basis by this firm. Additional information with respect to the information contained herein may be obtained upon request. Wedbush Securities does and seeks to do business with companies covered in its research reports. Thus, investors should be aware that the firm may have a conflict of interest that could affect the objectivity of this report. Investors should consider this report as only a single factor in making their investment decision. Please see pages 3–7 of this report for analyst certification and important disclosure information. Retail Investors The information provided is for general informational purposes only and should not be considered an individual recommendation or personalized investment advice. The companies/investments mentioned may not be suitable for everyone. Each investor needs to review their own respective situation(s) before making any investment decisions. All expressions of opinion are subject to change without notice due to shifting market(s), economic or political conditions. Investment involves risks including the risk of principal. Past performance is no guarantee of future results and the opinions presented cannot be viewed as an indicator of future performance.

( Companies Mentioned: GLUE:NASDAQ, )




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Jr. Miner Set to Resume Pursuit of Placer Gold-Bearing Channel

Omineca Mining and Metals Ltd. (OMM:TSX.V; OMMSF:OTCMKTS) announced it is set to restart mining and gravel extraction at its Wingdam placer gold project in British Columbia's historic Cariboo Mining District. Read why one expert thinks its new methods are a key to possible success.




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After Tenure Controversy, Nikole Hannah-Jones Will Join Howard Faculty Instead Of UNC

Author Ta-Nehisi Coates, seen here in 2019, will join the faculty of Howard University.; Credit: Mary Altaffer/AP

Laurel Wamsley | NPR

Updated July 6, 2021 at 11:31 AM ET

Less than a week after trustees at the University of North Carolina at Chapel Hill belatedly voted to grant tenure to New York Times reporter Nikole Hannah-Jones, Howard University announced Hannah-Jones will instead be joining its faculty.

Howard, the prestigious historically Black university in Washington, D.C., also announced it is hiring writer and Howard alumnus Ta-Nehisi Coates, author of Between the World and Me.

Their positions were funded by nearly $20 million in donations from the Knight Foundation, the John D. and Catherine T. MacArthur Foundation and the Ford Foundation, as well as an anonymous donor.

The funding establishes the Knight Chair in Race and Journalism, a tenured position to be held by Hannah-Jones.

Hannah-Jones, who won a Pulitzer Prize for her 1619 Project, will also establish the Center for Journalism and Democracy, which the university says will train aspiring journalists in "the investigative skills and historical and analytical expertise needed to cover the crisis our democracy is facing."

The news is a blow to UNC, which has had its reputation damaged by its handling of Hannah-Jones' appointment to an endowed professorship at its journalism school. For months, trustees declined to consider granting her tenure, a highly unusual move considering her tenure was backed by the relevant academic leaders.

Some of the opposition came from Walter Hussman, an Arkansas newspaper publisher and alumnus whose $25 million donation to the UNC's journalism school led to its being named for him.

As NPR's David Folkenflik reported, Hussman said "he was given pause by some prominent scholars' criticism that Hannah-Jones distorted the historical record in arguing that the protection of slavery was one of the Founding Fathers' primary motivations in seeking independence from the British."

Amid the turmoil, other Black faculty members at UNC said they were considering leaving the university, and students protested on behalf of Hannah-Jones.

The university's student body president Lamar Richard penned an open letter last month to the UNC community, saying the university is unprepared for the reckoning that's required, and "[u]ntil this rebirth occurs, Carolina is not deserving of your talents, aspirations, or successes."

Hannah-Jones had said she would not accept UNC's offer without tenure, which UNC's Trustees finally approved in a 9-4 vote.

But the messy and contentious process spoiled it for her.

"Look what it took to get tenure," Hannah-Jones said, noting that every other chair of the position dating to the 1980s had been granted tenure, and that all were white. Hannah-Jones received unanimous approval from the faculty during the tenure process.

"And so to be denied it, and to only have that vote occur on the last possible day, at the last possible moment, after threat of legal action, after weeks of protest, after it became a national scandal – it's just not something that I want anymore," she told CBS This Morning.

Hannah-Jones said she never wanted her hiring to become a public scandal — she was simply hoping to give back to her beloved alma mater. And instead, she said, it became "embarrassing" to be passed over for tenure. She said she was never told by UNC-Chapel Hill's chancellor, provost or trustees why her tenure was not taken up in November or January.

The veteran journalist reportedly had offers from a number of universities after the botched process at UNC. So how did she pick Howard?

She said one of her few regrets was not going to Howard as an undergraduate. And she traced her choice to join its faculty to her own story, beginning as a second-grader bused to a white school.

"I've spent my entire life proving that I belong in elite white spaces that were not built for Black people," she told CBS. "I decided I didn't want to do that anymore. That Black professionals should feel free, and actually perhaps an obligation, to go to our own institutions and bring our talents and resources to our own institutions and help to build them up as well."

She said she won her battle for fair treatment at UNC, "but it's not my job to heal the University of North Carolina. That's the job of the people in power who created this situation in the first place."

Hannah-Jones said she's trying to raise even more money for Howard, and that she's eager to join the faculty this summer.

"To be able to bring that type of resources to a university that always punches above its weight, I'm so excited," she said. "Something great came out of this."

Copyright 2021 NPR. To see more, visit https://www.npr.org.

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




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OpenAI announces general availability of GPT-4 model

Microsoft-owned OpenAI has announced the general availability of its latest text-generating model GPT-4, through its API.




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Planning to meet an emergency is especially important for persons with special needs

As it continues to note National Emergency Preparedness Month, Catawba County Emergency Services reminds citizens who have family members with special needs, and caregivers of those with special needs, that it�s very important to be prepared in advance to help those with special needs cope with an emergency or disastrous situation.




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Catawba County Children's Agenda Planning Committee releases report after two years of gathering information.

The committee compiled existing information about the status of children in the county. It also held public meetings and surveyed members of the public about their priorities and ideas. The committee found that most children in the county are well-cared for, but that a substantial number are falling through the cracks. A major cause of concern is the large number of children living in poverty.




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Winners announced in Distracted Driving video contest.

A team of students at Maiden High School has been selected as the Grand Prize winner in Catawba County�s Distracted Driving Video Contest. Members of the winning team are Matt Ellis, Rebecca Gates, John Kirby and Taylor Abshire.




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Computer equipment, televisions to be banned from landfills by new State law effective July 1st.

Beginning July 1, 2011, computer equipment and televisions will be banned from disposal in North Carolina landfills, under a law passed last year by the General Assembly. Catawba County will provide four one-day electronics recycling collection events in fiscal year 2011-2012, free of charge. All residents of Catawba County will have access to these electronics recycling events, including those who live in the cities and towns in the county.




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EPA announces Catawba County to again be "in attainment for particulate matter (PM 2.5)

The United States Environmental Planning Agency (USEPA) has announced that Catawba County will be classified as �attainment� from its current �nonattainment� designation for Particulate Matter 2.5 (PM 2.5) on December 19, 2011. PM 2.5 (fine particle pollution) refers to tiny particles of droplets in the air that are two and one half microns or less in width. Two and one half microns is about thirty times smaller than the width of a human hair.




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Winners of 2012 Distracted Driving Video Contest announced at Red Carpet event.

A team of students from Hickory High School's Student Council won the Grand Prize. The team included Will McCarrick, Anne Orgain, Taylor Panzer and Lexie Reeves. Their video, "Do You Drive Distracted?", was judged the best by a panel of judges.




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Catawba Co. Assistant Planning Director, Mary George, among leaders of nationally recognized river conservation effort.

The Institute for Conservation Leadership has chosen to honor the Catawba-Wateree Relicensing Coalition for their exemplary collaboration to accomplish outstanding environmental protection. The Coalition is being recognized for collaborative work that is creative, visionary, and highly effective and that their respective coalition members could not have achieved by acting alone




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Catawba County Assistant Planning Director, Mary George, named 2012 Outstanding Contributor to Agriculture.

Catawba County Assistant Planning Director, Mary George, has been named 2012 Outstanding Contributor to Agriculture by the Hickory Kiwanis Club




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Western Piedmont Council of Governments wins national honor for Western North Carolina Annual Air Quality Conference.

The Western Piedmont Council of Governments has won a national honor for the Western North Carolina Annual Air Quality Conference held at Lenoir-Rhyne University.




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Catawba County Public Health annual report, emergency preparedness outreach, win national honors.

Catawba County Public Health's annual report, emergency preparedness outreach have won national honors from the National Association of County Information Officers.