4 Stimulation of ABCB4/MDR3 ATPase activity requires an intact phosphatidylcholine lipid [Research Articles] By www.jlr.org Published On :: 2020-12-01T00:05:39-08:00 ABCB4/MDR3 is located in the canalicular membrane of hepatocytes and translocates PC-lipids from the cytoplasmic to the extracellular leaflet. ABCB4 is an ATP-dependent transporter that reduces the harsh detergent effect of the bile salts by counteracting self-digestion. To do so, ABCB4 provides PC lipids for extraction into bile. PC lipids account for 40% of the entire pool of lipids in the canalicular membrane with an unknown distribution over both leaflets. Extracted PC lipids end up in so-called mixed micelles. Mixed micelles are composed of phospholipids, bile salts, and cholesterol. Ninety to ninety-five percent of the phospholipids are members of the PC family, but only a subset of mainly 16.0-18:1 PC and 16:0-18:2 PC variants are present. To elucidate whether ABCB4 is the key discriminator in this enrichment of specific PC lipids, we used in vitro studies to identify crucial determinants in substrate selection. We demonstrate that PC-lipid moieties alone are insufficient for stimulating ABCB4 ATPase activity, and that at least two acyl chains and the backbone itself are required for a productive interaction. The nature of the fatty acids, like length or saturation has a quantitative impact on the ATPase activity. Our data demonstrate a two-step enrichment and protective function of ABCB4 to mitigate the harsh detergent effect of the bile salts, because ABCB4 can translocate more than just the PC-lipid variants found in bile. Full Article
4 Functional impact of a congenital stationary night blindness type 2 mutation depends on subunit composition of Cav1.4 Ca2+ channels [Neurobiology] By www.jbc.org Published On :: 2020-12-11T00:06:20-08:00 Voltage-gated Cav1 and Cav2 Ca2+ channels are comprised of a pore-forming α1 subunit (Cav1.1-1.4, Cav2.1-2.3) and auxiliary β (β1-4) and α2δ (α2δ−1−4) subunits. The properties of these channels vary with distinct combinations of Cav subunits and alternative splicing of the encoding transcripts. Therefore, the impact of disease-causing mutations affecting these channels may depend on the identities of Cav subunits and splice variants. Here, we analyzed the effects of a congenital stationary night blindness type 2 (CSNB2)-causing mutation, I745T (IT), in Cav1.4 channels typical of those in human retina: Cav1.4 splice variants with or without exon 47 (Cav1.4+ex47 and Cav1.4Δex47, respectively), and the auxiliary subunits, β2X13 and α2δ-4. We find that IT caused both Cav1.4 splice variants to activate at significantly more negative voltages and with slower deactivation kinetics than the corresponding WT channels. These effects of the IT mutation, along with unexpected alterations in ion selectivity, were generally larger in channels lacking exon 47. The weaker ion selectivity caused by IT led to hyperpolarizing shifts in the reversal potential and large outward currents that were evident in channels containing the auxiliary subunits β2X13 and α2δ-4 but not in those with β2A and α2δ-1. We conclude that the IT mutation stabilizes channel opening and alters ion selectivity of Cav1.4 in a manner that is strengthened by exclusion of exon 47 and inclusion of β2X13 and α2δ-4. Our results reveal complex actions of IT in modifying the properties of Cav1.4 channels, which may influence the pathological consequences of this mutation in retinal photoreceptors. Full Article
4 Solvent accessibility changes in a Na+-dependent C4-dicarboxylate transporter suggest differential substrate effects in a multistep mechanism [Membrane Biology] By www.jbc.org Published On :: 2020-12-25T00:06:31-08:00 The divalent anion sodium symporter (DASS) family (SLC13) plays critical roles in metabolic homeostasis, influencing many processes, including fatty acid synthesis, insulin resistance, and adiposity. DASS transporters catalyze the Na+-driven concentrative uptake of Krebs cycle intermediates and sulfate into cells; disrupting their function can protect against age-related metabolic diseases and can extend lifespan. An inward-facing crystal structure and an outward-facing model of a bacterial DASS family member, VcINDY from Vibrio cholerae, predict an elevator-like transport mechanism involving a large rigid body movement of the substrate-binding site. How substrate binding influences the conformational state of VcINDY is currently unknown. Here, we probe the interaction between substrate binding and protein conformation by monitoring substrate-induced solvent accessibility changes of broadly distributed positions in VcINDY using a site-specific alkylation strategy. Our findings reveal that accessibility to all positions tested is modulated by the presence of substrates, with the majority becoming less accessible in the presence of saturating concentrations of both Na+ and succinate. We also observe separable effects of Na+ and succinate binding at several positions suggesting distinct effects of the two substrates. Furthermore, accessibility changes to a solely succinate-sensitive position suggests that substrate binding is a low-affinity, ordered process. Mapping these accessibility changes onto the structures of VcINDY suggests that Na+ binding drives the transporter into an as-yet-unidentified conformational state, involving rearrangement of the substrate-binding site–associated re-entrant hairpin loops. These findings provide insight into the mechanism of VcINDY, which is currently the only structurally characterized representative of the entire DASS family. Full Article
4 {alpha}-Synuclein facilitates endocytosis by elevating the steady-state levels of phosphatidylinositol 4,5-bisphosphate [Membrane Biology] By www.jbc.org Published On :: 2020-12-25T00:06:30-08:00 α-Synuclein (α-Syn) is a protein implicated in the pathogenesis of Parkinson's disease (PD). It is an intrinsically disordered protein that binds acidic phospholipids. Growing evidence supports a role for α-Syn in membrane trafficking, including, mechanisms of endocytosis and exocytosis, although the exact role of α-Syn in these mechanisms is currently unclear. Here we investigate the associations of α-Syn with the acidic phosphoinositides (PIPs), phosphatidylinositol 4,5-bisphosphate (PI(4,5)P2) and phosphatidylinositol 3,4-bisphosphate (PI(3,4)P2). Our results show that α-Syn colocalizes with PIP2 and the phosphorylated active form of the clathrin adaptor protein 2 (AP2) at clathrin-coated pits. Using endocytosis of transferrin as an indicator for clathrin-mediated endocytosis (CME), we find that α-Syn involvement in endocytosis is specifically mediated through PI(4,5)P2 levels on the plasma membrane. In accord with their effects on PI(4,5)P2 levels, the PD associated A30P, E46K, and A53T mutations in α-Syn further enhance CME in neuronal and nonneuronal cells. However, lysine to glutamic acid substitutions at the KTKEGV repeat domain of α-Syn, which interfere with phospholipid binding, are ineffective in enhancing CME. We further show that the rate of synaptic vesicle (SV) endocytosis is differentially affected by the α-Syn mutations and associates with their effects on PI(4,5)P2 levels, however, with the exception of the A30P mutation. This study provides evidence for a critical involvement of PIPs in α-Syn–mediated membrane trafficking. Full Article
4 Exofacial membrane composition and lipid metabolism regulates plasma membrane P4-ATPase substrate specificity [Lipids] By www.jbc.org Published On :: 2020-12-25T00:06:30-08:00 The plasma membrane of a cell is characterized by an asymmetric distribution of lipid species across the exofacial and cytofacial aspects of the bilayer. Regulation of membrane asymmetry is a fundamental characteristic of membrane biology and is crucial for signal transduction, vesicle transport, and cell division. The type IV family of P-ATPases, or P4-ATPases, establishes membrane asymmetry by selection and transfer of a subset of membrane lipids from the lumenal or exofacial leaflet to the cytofacial aspect of the bilayer. It is unclear how P4-ATPases sort through the spectrum of membrane lipids to identify their desired substrate(s) and how the membrane environment modulates this activity. Therefore, we tested how the yeast plasma membrane P4-ATPase, Dnf2, responds to changes in membrane composition induced by perturbation of endogenous lipid biosynthetic pathways or exogenous application of lipid. The primary substrates of Dnf2 are glucosylceramide (GlcCer) and phosphatidylcholine (PC, or their lyso-lipid derivatives), and we find that these substrates compete with each other for transport. Acutely inhibiting sphingolipid synthesis using myriocin attenuates transport of exogenously applied GlcCer without perturbing PC transport. Deletion of genes controlling later steps of glycosphingolipid production also perturb GlcCer transport to a greater extent than PC transport. In contrast, perturbation of ergosterol biosynthesis reduces PC and GlcCer transport equivalently. Surprisingly, application of lipids that are poor transport substrates differentially affects PC and GlcCer transport by Dnf2, thus altering substrate preference. Our data indicate that Dnf2 exhibits exquisite sensitivity to the membrane composition, thus providing feedback onto the function of the P4-ATPases. Full Article
4 Kir2.1 Interactome Mapping Uncovers PKP4 as a Modulator of the Kir2.1-Regulated Inward Rectifier Potassium Currents [Research] By www.mcponline.org Published On :: 2020-09-01T00:05:24-07:00 Kir2.1, a strong inward rectifier potassium channel encoded by the KCNJ2 gene, is a key regulator of the resting membrane potential of the cardiomyocyte and plays an important role in controlling ventricular excitation and action potential duration in the human heart. Mutations in KCNJ2 result in inheritable cardiac diseases in humans, e.g. the type-1 Andersen-Tawil syndrome (ATS1). Understanding the molecular mechanisms that govern the regulation of inward rectifier potassium currents by Kir2.1 in both normal and disease contexts should help uncover novel targets for therapeutic intervention in ATS1 and other Kir2.1-associated channelopathies. The information available to date on protein-protein interactions involving Kir2.1 channels remains limited. Additional efforts are necessary to provide a comprehensive map of the Kir2.1 interactome. Here we describe the generation of a comprehensive map of the Kir2.1 interactome using the proximity-labeling approach BioID. Most of the 218 high-confidence Kir2.1 channel interactions we identified are novel and encompass various molecular mechanisms of Kir2.1 function, ranging from intracellular trafficking to cross-talk with the insulin-like growth factor receptor signaling pathway, as well as lysosomal degradation. Our map also explores the variations in the interactome profiles of Kir2.1WT versus Kir2.1314-315, a trafficking deficient ATS1 mutant, thus uncovering molecular mechanisms whose malfunctions may underlie ATS1 disease. Finally, using patch-clamp analysis, we validate the functional relevance of PKP4, one of our top BioID interactors, to the modulation of Kir2.1-controlled inward rectifier potassium currents. Our results validate the power of our BioID approach in identifying functionally relevant Kir2.1 interactors and underline the value of our Kir2.1 interactome as a repository for numerous novel biological hypotheses on Kir2.1 and Kir2.1-associated diseases. Full Article
4 Proteome-wide Analysis Reveals Substrates of E3 Ligase RNF146 Targeted for Degradation [Research] By www.mcponline.org Published On :: 2020-12-01T00:05:33-08:00 Specific E3 ligases target tumor suppressors for degradation. Inhibition of such E3 ligases may be an important approach to cancer treatment. RNF146 is a RING domain and PARylation-dependent E3 ligase that functions as an activator of the β-catenin/Wnt and YAP/Hippo pathways by targeting the degradation of several tumor suppressors. Tankyrases 1 and 2 (TNKS1/2) are the only known poly-ADP-ribosyltransferases that require RNF146 to degrade their substrates. However, systematic identification of RNF146 substrates have not yet been performed. To uncover substrates of RNF146 that are targeted for degradation, we generated RNF146 knockout cells and TNKS1/2-double knockout cells and performed proteome profiling with label-free quantification as well as transcriptome analysis. We identified 160 potential substrates of RNF146, which included many known substrates of RNF146 and TNKS1/2 and 122 potential TNKS-independent substrates of RNF146. In addition, we validated OTU domain-containing protein 5 and Protein mono-ADP-ribosyltransferase PARP10 as TNKS1/2-independent substrates of RNF146 and SARDH as a novel substrate of TNKS1/2 and RNF146. Our study is the first proteome-wide analysis of potential RNF146 substrates. Together, these findings not only demonstrate that proteome profiling can be a useful general approach for the systemic identification of substrates of E3 ligases but also reveal new substrates of RNF146, which provides a resource for further functional studies. Full Article
4 Douleurs côté droit sous les côtes : comment les soulager naturellement By www.orthodfr.org Published On :: Fri, 19 Jul 2024 16:56:45 +0000 En fonction de leurs causes, les douleurs du côté droit peuvent se manifester de différentes manières. Les symptômes de ces douleurs peuvent également varier d’une personne à une autre. Certaines personnes décrivent les douleurs du côté comme des sensations de crampes, de brûlures ou de piqûres. D’autres en revanche parlent de douleurs sourdes ou lancinantes qui irradient […] L’article Douleurs côté droit sous les côtes : comment les soulager naturellement est apparu en premier sur Ortho Doc France. Full Article Santé
4 Quelques remèdes de grand-mère pour soulager les symptômes de la fibromyalgie By www.orthodfr.org Published On :: Thu, 15 Aug 2024 08:43:21 +0000 En France, environ 2 à 4 % de la population, souvent des femmes, est touchée par la fibromyalgie. Mais en réalité, qu’est-ce que la fibromyalgie ? Quelles sont les astuces naturelles permettant de soulager les patients qui présentent des symptômes de cette maladie ? Quels sont les symptômes de la fibromyalgie ? La fibromyalgie, ou syndrome fibromyalgique, […] L’article Quelques remèdes de grand-mère pour soulager les symptômes de la fibromyalgie est apparu en premier sur Ortho Doc France. Full Article Santé
4 Quelle est la meilleure recette minceur à base de biscuits aux flocons d’avoine ? By www.orthodfr.org Published On :: Thu, 26 Sep 2024 13:34:24 +0000 Pour beaucoup de personnes, la perte de poids rime obligatoirement avec une période de privation. Mais contrairement à ces idées reçues, il est bien possible d’observer un régime pour perdre du poids tout en vous faisant plaisir. Découvrez notre recette minceur de biscuits croquants sans beurre aux flocons d’avoine qui raviront vos papilles sans pour autant vous apporter […] L’article Quelle est la meilleure recette minceur à base de biscuits aux flocons d’avoine ? est apparu en premier sur Ortho Doc France. Full Article Minceur
4 Quantitative proteomics reveal neuron projection development genes ARF4, KIF5B and RAB8A associated with Hirschsprung disease [Research] By www.mcponline.org Published On :: 2020-11-17T10:35:13-08:00 Hirschsprung disease (HSCR) is a heterogeneous group of neurocristopathy characterized by the absence of the enteric ganglia along a variable length of the intestine. Genetic defects play a major role in the pathogenesis of HSCR while family studies of pathogenic variants in all the known genes (loci) only demonstrate incomplete penetrance and variable expressivity for unknown reasons. Here, we applied large-scale, quantitative proteomics of human colon tissues from 21 patients using iTRAQ method followed by bioinformatics analysis. Selected findings were confirmed by parallel reaction monitoring (PRM) verification. At last the interesting differentially expressed proteins were confirmed by western blot. A total of 5341 proteins in human colon tissues were identified. Among them, 664 proteins with >1.2-fold difference were identified in 6 groups: groups A1 and A2 pooled protein from the ganglionic and aganglionic colon of male, long-segment HSCR patients (L-HSCR, n=7); groups B1 and B2 pooled protein from the ganglionic and aganglionic colon of male, short-segment HSCR patients (S-HSCR, n=7); and groups C1 and C2 pooled protein from the ganglionic and aganglionic colon of female, S-HSCR patients (n=7). Based on these analyses, 49 proteins from 5 pathways were selected for PRM verification, including ribosome, endocytosis, spliceosome, oxidative phosphorylation and cell adhesion. The downregulation of three neuron projection development genes ARF4, KIF5B and RAB8A in the aganglionic part of the colon were verified in 15 paired colon samples using WB. The findings of this study will shed new light on the pathogenesis of HSCR and facilitate the development of therapeutic targets. Full Article
4 Systematic identification of P. falciparum sporozoite membrane protein interactions reveals an essential role for the p24 complex in host infection [Research] By www.mcponline.org Published On :: 2020-12-22T08:35:40-08:00 Sporozoites are a motile form of malaria-causing Plasmodium falciparum parasites that migrate from the site of transmission in the dermis through the bloodstream to invade hepatocytes. Sporozoites interact with many cells within the host, but the molecular identity of these interactions and their role in the pathology of malaria is poorly understood. Parasite proteins that are secreted and embedded within membranes are known to be important for these interactions, but our understanding of how they interact with each other to form functional complexes is largely unknown. Here, we compile a library of recombinant proteins representing the repertoire of cell surface and secreted proteins from the P. falciparum sporozoite and use an assay designed to detect extracellular interactions to systematically identify complexes. We identify three protein complexes including an interaction between two components of the p24 complex that is involved in the trafficking of glycosylphosphatidylinositol (GPI)-anchored proteins through the secretory pathway. Plasmodium parasites lacking either gene are strongly inhibited in the establishment of liver stage infections. These findings reveal an important role for the p24 complex in malaria pathogenesis and show that the library of recombinant proteins represents a valuable resource to investigate P. falciparum sporozoite biology. Full Article
4 New 4-year deal 'felt right' for Nola By mlb.mlb.com Published On :: Thu, 14 Feb 2019 17:45:59 EDT Aaron Nola established himself as one of the best pitchers in baseball in 2018. The Phillies ensured on Wednesday that he will be the ace in their rotation for possibly the next five seasons. Full Article
4 Condom use in adolescents has fallen notably since 2014, warns WHO By www.bmj.com Published On :: Thursday, August 29, 2024 - 08:06 Full Article
4 Thrombectomy can be considered up to 24 hours after onset of stroke, says NICE By www.bmj.com Published On :: Friday, November 23, 2018 - 15:56 Full Article
4 GLP-1 agonist shortage will last until end of 2024, government warns By www.bmj.com Published On :: Friday, January 5, 2024 - 14:51 Full Article
4 C-X-C Motif Chemokine Receptor 4-Directed Scintigraphy Using [99mTc]Tc-Pentixatec in Primary Aldosteronism: A Proof-of-Concept Study By jnm.snmjournals.org Published On :: 2024-10-01T04:08:08-07:00 C-X-C motif chemokine receptor 4 (CXCR4)–directed imaging has gained clinical interest in aiding clinical diagnostics in primary aldosteronism (PA). We retrospectively evaluated the feasibility of CXCR4-directed scintigraphy using the novel CXCR-4 ligand [99mTc]Tc-pentixatec in patients with PA. Methods: Six patients (mean age ± SD, 49 ± 15 y) underwent CXCR4-directed scintigraphy (including planar imaging and SPECT/CT) 30, 120, and 240 min after injection of 435 ± 50 MBq of [99mTc]Tc-pentixatec. Adrenal CXCR4 expression was analyzed by calculating lesion-to-contralateral ratios (LCRs). Imaging results were correlated to clinical information. Histopathology and clinical follow-up served as the standard of reference. Results: Three subjects showed lateralization of adrenal tracer accumulation, with a mean maximum lesion-to-contralateral ratio of 1.65 (range, 1.52–1.70), which correlated with morphologic findings on CT. One individual underwent adrenalectomy and presented with complete biochemical and clinical remission at follow-up. Histopathologic workup confirmed unilateral aldosterone-producing adenoma. Conclusion: [99mTc]Tc-pentixatec scintigraphy with SPECT in patients with PA is feasible and might offer a valuable alternative to CXCR4-directed imaging with [68Ga]Ga-pentixafor PET. Full Article
4 Predicting Pathologic Complete Response in Locally Advanced Rectal Cancer with [68Ga]Ga-FAPI-04 PET, [18F]FDG PET, and Contrast-Enhanced MRI: Lesion-to-Lesion Comparison with Pathology By jnm.snmjournals.org Published On :: 2024-10-01T04:08:08-07:00 Neoadjuvant therapy in patients with locally advanced rectal cancer (LARC) has achieved good pathologic complete response (pCR) rates, potentially eliminating the need for surgical intervention. This study investigated preoperative methods for predicting pCR after neoadjuvant short-course radiotherapy (SCRT) combined with immunochemotherapy. Methods: Treatment-naïve patients with histologically confirmed LARC were enrolled from February 2023 to July 2023. Before surgery, the patients received neoadjuvant SCRT followed by 2 cycles of capecitabine and oxaliplatin plus camrelizumab. 68Ga-labeled fibroblast activation protein inhibitor ([68Ga]Ga-FAPI-04) PET/MRI, [18F]FDG PET/CT, and contrast-enhanced MRI were performed before treatment initiation and before surgery in each patient. PET and MRI features and the size and number of lesions were also collected from each scan. Each parameter’s sensitivity, specificity, and diagnostic cutoff were derived via receiver-operating-characteristic curve analysis. Results: Twenty eligible patients (13 men, 7 women; mean age, 60.2 y) were enrolled and completed the entire trial, and all patients had proficient mismatch repair or microsatellite-stable LARC. A postoperative pCR was achieved in 9 patients (45.0%). In the visual evaluation, both [68Ga]Ga-FAPI-04 PET/MRI and [18F]FDG PET/CT were limited to forecasting pCR. Contrast-enhanced MRI had a low sensitivity of 55.56% to predict pCR. In the quantitative evaluation, [68Ga]Ga-FAPI-04 change in SULpeak percentage, where SULpeak is SUVpeak standardized by lean body mass, had the largest area under the curve (0.929) with high specificity (sensitivity, 77.78%; specificity, 100.0%; cutoff, 63.92%). Conclusion: [68Ga]Ga-FAPI-04 PET/MRI is a promising imaging modality for predicting pCR after SCRT combined with immunochemotherapy. The SULpeak decrease exceeding 63.92% may provide valuable guidance in selecting patients who can forgo surgery after neoadjuvant therapy. Full Article
4 Medical supply company McKesson to pay more than $400K over discriminatory hiring By www.upi.com Published On :: Mon, 04 Nov 2024 13:57:18 -0500 McKesson Medical-Surgical Inc. entered into an agreement with the Labor Department on Monday resolving employment discrimination issues involving nearly 900 Black, Hispanic, and White applicants at a distribution center Full Article
4 23andMe to cut 40% of workforce, end therapeutics program By www.upi.com Published On :: Mon, 11 Nov 2024 23:04:10 -0500 Genetic-testing lab 23andMe plans to cut its workforce by 40% and end its therapeutics program in an effort to cut costs, the company announced Monday. Full Article
4 Microchip Expands 64-Bit Portfolio with High-Performance PIC64HX Microprocessors for Edge Computing By www.hpcwire.com Published On :: Wed, 23 Oct 2024 12:07:23 +0000 CHANDLER, Ariz., Oct. 23, 2024 — The global edge computing market is expected to grow by more than 30 percent in the next five years, serving mission-critical applications in the […] The post Microchip Expands 64-Bit Portfolio with High-Performance PIC64HX Microprocessors for Edge Computing appeared first on HPCwire. Full Article
4 Ciena Powers SC24’s SCinet with High-Speed Connectivity and Advanced Optical Solutions By www.hpcwire.com Published On :: Tue, 05 Nov 2024 14:47:50 +0000 HANOVER, Md., Nov. 5, 2024 — Ciena has announced that its optical and routing and switching innovations will once again support the SCinet network at SC24, taking place November 17–22 […] The post Ciena Powers SC24’s SCinet with High-Speed Connectivity and Advanced Optical Solutions appeared first on HPCwire. Full Article
4 SNIA to Lead Panel on AI and HPC Innovation Standards at SC24 By www.hpcwire.com Published On :: Thu, 31 Oct 2024 14:34:42 +0000 Oct. 31, 2024 — SNIA is pleased to return to SC24 as part of the Open Standards Pavilion, Booth 1815. At SC24, five SNIA groups and six SNIA Alliance and Collaboration […] The post SNIA to Lead Panel on AI and HPC Innovation Standards at SC24 appeared first on HPCwire. Full Article
4 Fantasy football: Gesicki, Smith among 4 must-start Week 10 tight ends By www.upi.com Published On :: Thu, 07 Nov 2024 14:50:46 -0500 Mike Gesicki and Jonnu Smith are among UPI senior sports writer Alex Butler's four must-start fantasy football tight ends for Week 10. Full Article
4 Tracy, Harris among 4 must-start Week 10 fantasy football running backs By www.upi.com Published On :: Thu, 07 Nov 2024 14:51:56 -0500 Tyrone Tracy Jr. and Najee Harris are among UPI senior sports writer Alex Butler's four must-start fantasy football running backs for Week 10. Full Article
4 Thomas, Williams among 4 must-start Week 10 fantasy football wide receivers By www.upi.com Published On :: Thu, 07 Nov 2024 14:52:50 -0500 Brian Thomas Jr. and Jameson Williams are among UPI senior sports writer Alex Butler's four must-start wide receivers for Week 10 of the fantasy football campaign. Full Article
4 Ethernet Alliance to Feature Cross-Industry Collaboration at ECOC 2024 Exhibit By www.hpcwire.com Published On :: Tue, 10 Sep 2024 19:00:03 +0000 BEAVERTON, Ore., Sept. 10, 2024 — The Ethernet Alliance, a global consortium dedicated to the continued success and advancement of Ethernet technologies, today announced details of its exhibit at stand #A3 […] The post Ethernet Alliance to Feature Cross-Industry Collaboration at ECOC 2024 Exhibit appeared first on HPCwire. Full Article
4 Speed up Innovation with performance gains of up to 42% on the most powerful HPC Cloud By www.hpcwire.com Published On :: Thu, 20 May 2021 12:00:33 +0000 About This Webinar Oracle’s next generation HPC architecture with Intel compute instance based on 3rd Generation Intel® Xeon® Scalable processors, code named “Ice Lake”, changes the game for HPC in […] The post Speed up Innovation with performance gains of up to 42% on the most powerful HPC Cloud appeared first on HPCwire. Full Article
4 Watch: 43 monkeys on the loose after escaping South Carolina facility By www.upi.com Published On :: Thu, 07 Nov 2024 13:06:29 -0500 Police in a small South Carolina town are warning residents to keep their doors and windows locked after 43 monkeys escaped from a research facility. Full Article
4 Highlights from GlobusWorld 2024: The Conference for Reimagining Research IT By www.hpcwire.com Published On :: Tue, 11 Jun 2024 19:51:38 +0000 The Globus user conference, now in its 22nd year, brought together over 180 researchers, system administrators, developers, and IT leaders from 55 top research computing centers, national labs, federal agencies, […] The post Highlights from GlobusWorld 2024: The Conference for Reimagining Research IT appeared first on HPCwire. Full Article Features AuroraGPT ChatGPT DOE Globus IRI ScienceBase USGS
4 MLPerf Training 4.0 – Nvidia Still King; Power and LLM Fine Tuning Added By www.hpcwire.com Published On :: Wed, 12 Jun 2024 17:02:06 +0000 There are really two stories packaged in the most recent MLPerf Training 4.0 results, released today. The first, of course, is the results. Nvidia (currently king of accelerated computing) wins […] The post MLPerf Training 4.0 – Nvidia Still King; Power and LLM Fine Tuning Added appeared first on HPCwire. Full Article Features MLCommons MLPerf Nvidia
4 USS John S. McCain headed to new U.S. home port after 24 years in Japan By www.upi.com Published On :: Fri, 17 Sep 2021 12:35:29 -0400 The USS John S. McCain on Friday headed to its new homeport in Naval Station Everett, Wash., after 24 years in Yokosuka, Japan, the Navy said. Full Article
4 IonQ Announces 3rd Quarter 2024 Financial Results By www.hpcwire.com Published On :: Thu, 07 Nov 2024 14:01:38 +0000 COLLEGE PARK, Md., Nov. 7, 2024 — IonQ (NYSE: IONQ), a leader in the quantum computing industry, has announced financial results for the quarter ended September 30, 2024. “We had yet […] The post IonQ Announces 3rd Quarter 2024 Financial Results appeared first on HPCwire. Full Article
4 TSMC Releases October 2024 Revenue Report By www.hpcwire.com Published On :: Fri, 08 Nov 2024 16:43:48 +0000 HSINCHU, Taiwan, Nov. 8, 2024 – TSMC (TWSE: 2330, NYSE: TSM) today announced its net revenue for October 2024. On a consolidated basis, revenue for October 2024 was approximately NT$314.24 […] The post TSMC Releases October 2024 Revenue Report appeared first on HPCwire. Full Article
4 CoolIT Systems Showcases AI and HPC Liquid Cooling Solutions at SC24 By www.hpcwire.com Published On :: Wed, 06 Nov 2024 15:13:27 +0000 Nov. 6, 2024 — CoolIT Systems, a world leader in liquid cooling systems for artificial intelligence (AI) and high-performance computing (HPC), will showcase its latest AI cooling products at the Supercomputing […] The post CoolIT Systems Showcases AI and HPC Liquid Cooling Solutions at SC24 appeared first on HPCwire. Full Article
4 CSCS to Showcase Swiss HPC Innovations at SC24 in Atlanta By www.hpcwire.com Published On :: Thu, 07 Nov 2024 13:20:11 +0000 Nov. 7, 2024 — Since 2011, CSCS has hosted a booth at the annual SC Conference, and this year makes no exception. CSCS invites attendees to discover the latest news […] The post CSCS to Showcase Swiss HPC Innovations at SC24 in Atlanta appeared first on HPCwire. Full Article
4 AlmaLinux OS Foundation Chair to Discuss Embracing Diversity in Open Source at SC24 By www.hpcwire.com Published On :: Thu, 07 Nov 2024 14:00:42 +0000 FORT MYERS, Fla., Nov. 7, 2024 — The AlmaLinux OS Foundation, the nonprofit that stewards the free and community-governed open source enterprise Linux distribution, today announced that chair benny Vasquez is […] The post AlmaLinux OS Foundation Chair to Discuss Embracing Diversity in Open Source at SC24 appeared first on HPCwire. Full Article
4 Cerabyte Discusses Use Cases for Its Ceramic Data Storage Solution at SC24 By www.hpcwire.com Published On :: Thu, 07 Nov 2024 15:10:25 +0000 SANTA CLARA, Calif. and MUNICH, Nov. 7, 2024 — Cerabyte, a pioneer of ceramic-based data storage solutions, today announced its participation at SuperComputing 2024 (SC24), taking place at the Georgia […] The post Cerabyte Discusses Use Cases for Its Ceramic Data Storage Solution at SC24 appeared first on HPCwire. Full Article
4 SC24 Invited Talks to Spotlight HPC’s Role in AI, Quantum Computing, and Sustainability By www.hpcwire.com Published On :: Thu, 07 Nov 2024 21:46:50 +0000 ATLANTA, Nov. 7, 2024 — As the high-performance computing (HPC) community gathers in Atlanta for SC24, the world’s largest HPC conference, the event will feature presentations from thought leaders and […] The post SC24 Invited Talks to Spotlight HPC’s Role in AI, Quantum Computing, and Sustainability appeared first on HPCwire. Full Article
4 Loose cash leads Maryland man to lottery jackpot of $45,166 By www.upi.com Published On :: Tue, 12 Nov 2024 16:13:16 -0500 A Maryland man found some loose cash in his back pocket and ended up using it to buy a lottery ticket worth more than $45,000. Full Article
4 Motivair to Showcase MI300X Cold Plates at SC24 for AI Servers By www.hpcwire.com Published On :: Mon, 11 Nov 2024 14:36:49 +0000 BUFFALO, N.Y., Nov. 11, 2024 — Motivair Corporation, a leading global provider of advanced liquid cooling solutions, will be showcasing its cutting-edge MI300X Dynamic Cold Plates at the upcoming International […] The post Motivair to Showcase MI300X Cold Plates at SC24 for AI Servers appeared first on HPCwire. Full Article
4 PEAK:AIO Showcases Expansive Growth and Energy-Efficient Solutions Ahead of SC24 By www.hpcwire.com Published On :: Tue, 12 Nov 2024 13:59:52 +0000 MANCHESTER, England, Nov. 12, 2024 — PEAK:AIO today announced it has achieved 400% growth in U.S. sales over the past year. This expansion, driven by its high-performance, energy-efficient solutions, solidifies PEAK:AIO’s […] The post PEAK:AIO Showcases Expansive Growth and Energy-Efficient Solutions Ahead of SC24 appeared first on HPCwire. Full Article
4 Sylabs Highlights Confidential Computing in HPC at SC24 BoF Session By www.hpcwire.com Published On :: Tue, 12 Nov 2024 16:25:15 +0000 ATLANTA, Nov. 12, 2024 — Sylabs, in collaboration with Sandia National Laboratories, will host a Birds of a Feather (BoF) session at SC24 titled Integrating Confidential Computing into High-Performance Cloud Workflows. […] The post Sylabs Highlights Confidential Computing in HPC at SC24 BoF Session appeared first on HPCwire. Full Article
4 LightSolver Highlights Laser Computing Advancements for HPC at SC24 By www.hpcwire.com Published On :: Tue, 12 Nov 2024 16:50:14 +0000 TEL AVIV, Israel, Nov. 12, 2024 — LightSolver today announced that it will be exhibiting and presenting at SC24, the international conference for high-performance computing (HPC), networking, storage, and analysis […] The post LightSolver Highlights Laser Computing Advancements for HPC at SC24 appeared first on HPCwire. Full Article
4 Study: Deaths from cardiovascular disease surge among adults 25-64 in rural areas By www.upi.com Published On :: Tue, 12 Nov 2024 06:39:14 -0500 Deaths from cardiovascular disease have surged among adults ages 25 to 64 living in rural areas, a new study shows. Full Article
4 NANO Nuclear Energy Raises Over $40M from Recent Underwritten Follow-On Offering By www.hpcwire.com Published On :: Fri, 01 Nov 2024 13:05:29 +0000 NEW YORK, Nov. 1, 2024 — NANO Nuclear Energy Inc. has announced the October 29, 2024 closing of the sale of an additional 317,646 shares of its common stock at […] The post NANO Nuclear Energy Raises Over $40M from Recent Underwritten Follow-On Offering appeared first on HPCwire. Full Article
4 Research Insights, HPC Expertise, Meaningful Collaborations Abound at TACCSTER 2024 By www.hpcwire.com Published On :: Thu, 17 Oct 2024 15:23:31 +0000 It’s a wrap! The Texas Advanced Computing Center (TACC) at UT Austin welcomed more than 100 participants for the 7th annual TACC Symposium for Texas Researchers (TACCSTER). The event exists […] The post Research Insights, HPC Expertise, Meaningful Collaborations Abound at TACCSTER 2024 appeared first on HPCwire. Full Article Features star formation Storm Surge Modeling TACC TACCSTER-24
4 Quantum Nuggets: Riverlane’s 2024 QEC Study, IBM’s V-score, Twisted Semiconductors By www.hpcwire.com Published On :: Tue, 22 Oct 2024 16:43:19 +0000 Quantum error correction specialist Riverlane today released a fascinating report — The Quantum Error Correction Report 2024 — that’s worth scanning; IBM and 28 collaborators last week released V-score, a […] The post Quantum Nuggets: Riverlane’s 2024 QEC Study, IBM’s V-score, Twisted Semiconductors appeared first on HPCwire. Full Article Short Takes
4 D-Wave Readies 4,400-plus-qubit Advantage2 System for Use By www.hpcwire.com Published On :: Wed, 06 Nov 2024 16:41:14 +0000 Quantum computing pioneer D-Wave today announced it had completed calibration and benchmarking the latest latest version of its Advantage2 quantum processor, a 4,400-plus-qubit device. D-Wave said that compared with the […] The post D-Wave Readies 4,400-plus-qubit Advantage2 System for Use appeared first on HPCwire. Full Article Short Takes
4 Boffo HPC Conference Sessions: Leicester 2024 By www.hpcwire.com Published On :: Mon, 11 Nov 2024 21:36:13 +0000 Leicester was the center of the HPC universe on October 15-16 as the HPC/AI Advisory Council and DiRAC hosted their sixth annual UK conference. The theme this year was “Democratising […] The post Boffo HPC Conference Sessions: Leicester 2024 appeared first on HPCwire. Full Article Short Takes