gebhart/patrepeval huggingface dataset:
Tungsten(V)-oxo and tungsten(VI)-dioxo complexes with oxygen, nitrogen, and sulfur ligands. Electrochemical, infrared, and electron paramagnetic resonance studies (1981)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTungsten(V)-oxo and tungsten(VI)-dioxo complexes with oxygen, nitrogen, and sulfur ligands. Electrochemical, infrared, and electron paramagnetic resonance studiesC. A. Rice, P. M. H. Kroneck, and J. T. SpenceCite this: Inorg. Chem. 1981, 20, 7, 1996–2000Publication Date (Print):July 1, 1981Publication History Published online1 May 2002Published inissue 1 July 1981https://pubs.acs.org/doi/10.1021/ic50221a012https://doi.org/10.1021/ic50221a012research-articleACS PublicationsRequest reuse permissionsArticle Views560Altmetric-Citations21LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Intermediate View Generation of Soccer Scene from Multiple Videos (2001)

This paper introduces a novel method for generating an intermediate view of soccer scenes taken by multiple video cameras. In the proposed method, a soccer scene is classified into dynamic regions, a field region, and a background region. Using an epipolar geometry in the first region and homography in the second, dense correspondence is obtained to interpolate views. For the third region, partial area images are extracted from the panoramic image compounded from the background of multiple views. Finally synthesizing them completes intermediate view images of the whole object. Applying this method to actual scenes of a soccer match captured at the stadium, we succeeded in generating natural intermediate view videos.
HBM ESD EDA check method applied to complete smart power IC's — Functional initialization and implementation (2013)

A functional approach to check global IC ESD schematic network correctness and protected circuitry ESD compliance using Calibre® Mentor PERC is presented and applied to Smart Power IC product. Developed checker exploits an initialization method able to accurately define ESD paths. The project follows ESD Association EDA International Working Group guidelines.
Purification and properties of the B-Glucosidase of a yeast capable of fermenting cellobiose to ethanol: Dekkera intermedia Van der Walt. (1983)

The intracellular enzyme β-glucosidase of Dekkera intermedia was partially purified by ion-exchange chromatography and gel filtration. The molecular weight of this enzyme was 310,000; its optimum pH was 5.0 and optimum temperature was 55°C. This enzyme was active against different β-glucosides and was inhibited by p-chloromercurybenzoate, gluconolactone, and glucose. A “glucosyltransferase” activity appeared in the presence of ethanol. The biosynthesis of this enzyme was constitutive but repressed by glucose.
Effects of prolonged reduction in blood flow on submandibular secretory function in anesthetized sheep (2003)

Submandibular vascular and secretory responses to parasympathetic chorda-lingual (C-L) stimulation were investigated in anesthetized sheep before, during, and after an intracarotid (ic) infusion of endothelin-1 (ET-1). Stimulation of the peripheral end of the C-L nerve at 4 and 8 Hz produced a frequency-dependent reduction in submandibular vascular resistance (SVR) associated with a frequency-dependent increase in submandibular blood flow, salivary flow, and Na+, K+, and protein output from the gland. During stimulation at 4 Hz, ic ET-1 significantly increased SVR (P < 0.01), without significantly affecting either the aortic blood pressure or heart rate. Submandibular blood flow (SBF) was reduced by 48 +/- 4% and the flow of saliva by 50 +/- 1%. The effect on blood and salivary flow persisted for at least 30 min after the infusion of ET-1. The reduction in SBF was associated with a diminution in the output of Na+,K+, and protein in the saliva (P < 0.01). These effects persisted for 30 min after the infusion of ET-1 had been discontinued and were linearly related to the flow of plasma throughout.
Studies of 2-oxo- and 2-thioxo-1,2-dihydropyrimidinium salts (1977)

The chemistry (deuteriation, halogenation, diazo-coupling, and reaction with nucleophiles) and spectra of 2-oxo-and 2-thioxo-1,2-dihydropyrimidinium salts are compared with those of 2,2-dialkyl-1,2-dihydropyrimidinium and 2,3-dihydro-1,4-diazepinium salts, thereby demonstrating the effect of an adjacent oxo- or thioxo-group on the properties of a 1,5-diazapentadienium system.
Structure-Toxicity Analysis of Type-2 Alkenes: In Vitro Neurotoxicity (2006)

Acrylamide (ACR) is a conjugated type-2 alkene that produces synaptic toxicity presumably by sulfhydryl adduction. The alpha,beta-unsaturated carbonyl of ACR is a soft electrophile and, therefore, adduction of nucleophilic thiol groups could occur through a conjugate (Michael) addition reaction. To address the mechanism of thiol adduct formation and corresponding neurotoxicological importance, we defined structure-toxicity relationships among a series of conjugated type-2 alkenes (1 microM-10mM), which included acrolein and methylvinyl ketone. Results show that exposure of rat striatal synaptosomes to these chemicals produced parallel, concentration-dependent neurotoxic effects that were correlated to loss of free sulfhydryl groups. Although differences in relative potency were evident, all conjugated analogs tested were equiefficacious with respect to maximal neurotoxicity achieved. In contrast, nonconjugated alkene or aldehyde congeners did not cause synaptosomal dysfunction or sulfhydryl loss. Acrolein and other alpha,beta-unsaturated carbonyls are bifunctional (electrophilic reactivity at the C-1 and C-3 positions) and could produce in vitro neurotoxicity by forming protein cross-links rather than thiol monoadducts. Immunoblot analysis detected slower migrating, presumably derivatized, synaptosomal proteins only at very high acrolein concentrations (>or= 25 mM). Exposure of synaptosomes to high concentrations of ACR (1M), N-ethylmaleimide (10mM), and methyl vinyl ketone (MVK) (100mM) did not alter the gel migration of synaptosomal proteins. Furthermore, hydralazine (1mM), which blocks the formation of protein cross-links, did not affect in vitro acrolein neurotoxicity. Thus, type-2-conjugated alkenes produced synaptosomal toxicity that was linked to a loss of thiol content. This is consistent with our hypothesis that the mechanism of ACR neurotoxicity involves formation of Michael adducts with protein sulfhydryl groups.
A meta-analytic assessment of a Thyroglobulin marker for marbling in beef cattle (2006)

A meta-analysis was undertaken reporting on the association between a polymorphism in the Thyroglobulin gene (TG5) and marbling in beef cattle. A Bayesian hierarchical model was adopted, with alternative representations assessed through sensitivity analysis. Based on the overall posterior means and posterior probabilities, there is substantial support for an additive association between the TG5 marker and marbling. The marker effect was also assessed across various breed groups, with each group displaying a high probability of positive association between the T allele and marbling. The WinBUGS program code used to simulate the model is included as an Appendix available online at http://www.edpsciences.org/gse .
Design of a robotic manipulator for automatic application of milking cups (2006)

The application of milking cups to cow teats has been identified as a significant component of net manual labour on the commercial dairy farm. Several automatic milking systems (AMS) are available commercially, however such commercial AMS have low capacity (typically 7.5 cows/unit/hr) and speed of teat detection and rmlking cup application is relatively low. Attempts to introduce commercial AMS into pasture-grazing systems have been unsuccessful as maximising milking efficiency in pasture-grazed herds involves optimizing throughput of cows during the milking session. This design project investgated the use of a commercial robot arm for high-speed milking cup application. Operating requirements and workspace parameters were determined horn field observation of cows in a milking parlour. An end-effector capable of handling four milking cups simultaneously was developed and interfaced with a 6-axis robot arm to form a robotic milking cup application mechanism The end-effector profile is sufficiently compact to allow access between the rear legs of the cow while enabhg full access to all four teats for application of milking cups. A control system was designed and implemented for the applicator and basic testing was performed to validate operation. Test results indicate that small changes in teat location (<20mm) may be tracked at a position update rate of approximately 200 ms.
An automatic approach for estimating bolus arrival time in dynamic contrast MRI using piecewise continuous regression models (2003)

We present two regression models for the automatic estimation of bolus arrival times (BATs) in dynamic contrast MRI datasets. Results of Monte Carlo simulation experiments show that the means and standard deviations of the estimated BATs are within the sampling interval even in the presence of significant noise.
Cell-Penetrating Peptides as Delivery Enhancers for Vaccine (2014)

The poor permeability of cellular membrane is one of the principal hurdles of most drug administrations including vaccine system, consequently impairing drug efficiency. In order to address this natural barrier, cell-penetrating peptides (CPPs) have been developed to facilitate molecular cargos to enter cells. CPPs, generally short peptides with 5-30 amino acids, can be classified in to cationic, amphipathic and hydrophobic types according to physical-chemical properties. In this review, different processes of antigen uptake, subsequent processing and presentation of CPP-based vaccine are comprehensively summarized despite precise mechanisms are not still established. Some experimental factors such as cell types, concentration of CPPs and antigenic cargos have been reported to affect antigen uptake orientation. Moreover, this review discusses different antigenic cargos where CPPs can transport for vaccine delivery as well as the application of CPPs in vaccine system via different administration routes like transdermal, subcutaneous and mucosal immunization.
Role of Interfacial Area in Sulfuric Acid Alkylation (1969)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRole of Interfacial Area in Sulfuric Acid AlkylationF. B. SprowCite this: Ind. Eng. Chem. Process Des. Dev. 1969, 8, 2, 254–257Publication Date (Print):April 1, 1969Publication History Published online1 May 2002Published inissue 1 April 1969https://pubs.acs.org/doi/10.1021/i260030a016https://doi.org/10.1021/i260030a016research-articleACS PublicationsRequest reuse permissionsArticle Views163Altmetric-Citations26LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access options Get e-Alerts
HETEROTOPIC OSSIFICATION: A PROSPECTIVE COMPARISON BETWEEN HIP RESURFACING AND TOTAL HIP REPLACEMENT (2004)

Resurfacing arthroplasty of the hip is currently enjoying a resurgence in popularity. There are many reasons why resurfacing may be indicated, but one is that the absence of proximal femoral reaming at surgery may reduce the occurrence of heterotopic ossification (HO) after surgery. The objective of this study was to compare the prevalence of postoperative HO for patients undergoing two different types of hip surgery, resurfacing arthroplasty or total hip replacement. Data were gathered from 43 consecutive patients undergoing metal on metal hip resurfacing (MoM-R) and 37 consecutive patients undergoing metal on metal total hip replacement (MoM-THR) with a minimum of six months’ follow up. The Brooker classification was used to grade HO from postoperative radiographs1. We found that, when undergoing MoM-R, women had a lower chance of developing HO than men (p=0.04). In addition, women who received a MoM-R had a reduced incidence of developing HO than women who received a MoM-THR (p=0.04). There were no differences in the incidence of postoperative HO between men undergoing either MoM-R or MoM-THR. It can be concluded from this study that resurfacing does reduce the incidence of HO in women and that care must be taken when selecting women to undergo total hip replacement in preference to hip resurfacing. This study has highlighted the need to inform patients of HO as a common complication when consenting for hip arthroplasty, and has established an 18% rate of postoperative HO for hip resurfacing arthroplasty.
Acute Renal Failure Due to Hemorrhagic Fever with Renal Syndrome (1996)

The aim of our study was to analyze the clinical course and outcome of acute renal failure (ARF) in patients with hemorrhagic fever with renal syndrome (HFRS). From 1983 to 1995, we treated 33 patients (27 males, 6 females) aged from 16 to 71 years. Half of patients were connected with work at a farm or in a forest. The disease was confirmed serologically with indirect immunofluorescence test (IFT) and enzyme-linked immunosorbent assay (ELISA). In 18 patients percutaneous kidney needle biopsies were analyzed. In 85% of the cases, the disease broke out from June to October. The most frequently expressed clinical signs and symptoms were fever, nausea/vomiting, headache, backache, abdominal pain, myalgia, diarrhea, conjunctival injection, and hemorrhages. Four patients had concomitant pancreatitis. In 25 patients, oliguria was present, and transient hemodialysis treatment was needed in 19 patients. Infection with Hantaan virus was established in 20 patients and with Puumala virus in 13 patients. At renal biopsy, acute interstitial nephritis accompanied with hemorrhages and necrosis was found, and at a later biopsy there were also signs of interstitial fibrosis. All patients were cured, but renal function was not completely recovered in some. We conclude that ARF is a serious complication in patients with HFRS. Although not lethal in our group of patients, many of them showed severe signs and symptoms of illness. Transient hemodialysis was necessary in two-thirds of the patients. Some degree of functional defects and morphological changes might persist.
Universalization of the Phase Diagram for a Model Rod−Coil Diblock Copolymer (2008)

The Flory−Huggins interaction is measured for a model rod−coil block copolymer system, poly(alkoxyphenylenevinylene-b-isoprene), by fitting the interfacial segregation of block copolymer to a homopolymer interface and by using the random phase approximation (RPA) for block copolymers. The measured interfacial segregation of a block copolymer to the interface between homopolymers, fit with a self-consistent field theory (SCFT) simulation using χ as a variable parameter, gives a functional form χ = 34.8/T − 0.091. When RPA is applied to neutron scattering curves for the rod−coil system above the order−disorder transition, the theoretical structure factors are inconsistent with observed scattering curves due to complex aggregated structures formed in the nematic and isotropic states. Using the Flory−Huggins parameter and a previously measured value of the Maier−Saupe parameter, the PPV-b-PI phase diagram may be converted from system-specific variables to dimensionless parameters. Under the assumptions that the rods are ideal nematogens, interaction strengths are composition-independent, and rod−coil and rod−rod interactions are local, this yields the first quantitative universal phase diagram for rod−coil block copolymers.
Application of Diamond-Like Nanocomposite Tribological Coatings on LIGA Microsystem Parts (2009)

The major focus of this study was to examine the feasibility of applying diamond-like nanocomposite (DLN) coatings on the sidewalls of Ni alloy parts fabricated using lithographie, galvanoformung and abformung (LIGA: a German acronym that means lithography, electroforming, and molding) for friction and wear control. Planar test coupons were employed to understand the friction mechanisms in regimes relevant to LIGA microsytems. Friction tests were conducted on planar test coupons as well as between LIGA-fabricated test structures in planar-sidewall and sidewall-sidewall configurations. Measurements were made in dry nitrogen and air with 50% relative humidity by enclosing the friction tester in an environmental chamber. In contrast to bare metal-metal contacts, minimal wear was exhibited for the DLN-coated LIGA NiMn alloy parts and test coupons. The low friction behavior of DLN was attributed to its ability to transfer to the rubbing counterface providing low interfacial shear at the sliding contact. The coating coverage and chemistry on the sidewalls and the substrate-coating interface integrity were examined by transmission electron microscopy, Automated eXpert Spectral Image Analysis, and electron backscatter diffraction on cross sections prepared by focused ion beam microscopy. The role of novel characterization techniques to evaluate the surface coatings for LIGA microsystems technology is highlighted.
Genetic Mapping of a Mutant Defective in <scp>d, l</scp> -Alanine Racemase in <i>Bacillus subtilis</i> 168 (1973)

Genetic analysis of a d-alanine requiring mutant (dal) of Bacillus subtilis reveals that the gene that codes for d,l-alanine racemase is linked to purB. The order of genes in this region of the chromosome is purB, pig, tsi, dal. Thus there are at least two clusters of genes that regulate cell wall biosynthesis in B. subtilis.
Heat Shock Protein Synthesis and Thermal Tolerance in Wheat (1989)

Plants respond to high temperature stress by the synthesis of an assortment of heat shock proteins that have been correlated with an acquired thermal tolerance to otherwise lethal temperatures. This study was conducted to determine whether genotypic differences in acquired thermal tolerance were associated with changes in the pattern of heat shock protein synthesis. The pattern of heat shock protein synthesis was analyzed by (35)S-methionine incorporation in wheat (Triticum aestivum L.) varieties exhibiting distinct levels of acquired thermal tolerance. Significant quantitative differences between the cultivars Mustang and Sturdy were observed in the HSP exhibiting apparent molecular weights of 16, 17, 22, 26, 33, and 42 Kilodaltons. Genotypic differences in the synthesis of the small subunit of ribulose 1,5-bisphosphate carboxylase/oxygenase were observed at 34 degrees C. Two-dimensional electrophoretic analysis revealed unique proteins (16, 17, and 26 kilodaltons) in the thermal tolerant variety Mustang that were absent in the more thermal sensitive variety Sturdy. These results provide a correlation between the synthesis of specific low molecular weight heat shock proteins and the degree of thermal tolerance expressed following exposure to elevated temperatures.
c-Myb is required for progenitor cell homeostasis in colonic crypts (2007)

The colonic crypt is the functional unit of the colon mucosa with a central role in ion and water reabsorption. Under steady-state conditions, the distal colonic crypt harbors a single stem cell at its base that gives rise to highly proliferative progenitor cells that differentiate into columnar, goblet, and endocrine cells. The role of c-Myb in crypt homeostasis has not been elucidated. Here we have studied three genetically distinct hypomorphic c-myb mutant mouse strains, all of which show reduced colonic crypt size. The mutations target the key domains of the transcription factor: the DNA binding, transactivation, and negative regulatory domains. In vivo proliferation and cell cycle marker studies suggest that these mice have a progenitor cell proliferation defect mediated in part by reduced Cyclin E1 expression. To independently assess the extent to which c-myb is required for colonic crypt homeostasis we also generated a novel tissue-specific mouse model to allow the deletion of c-myb in adult colon, and using these mice we show that c-Myb is required for crypt integrity, normal differentiation, and steady-state proliferation.
The nifH and nifDK promoter regions from Rhizobium japonicum share structural homologies with each other and with nitrogen-regulated promoters from other organisms. (1984)

In several species of Rhizobium the three genes which encode the nitrogenase complex are separated into two operons, nifH and nifDK. We have mapped the transcriptional promoter sites for these two operons from R. japonicum USDA strain 110 by S1 protection analyses using bacterial RNA isolated from soybean nodules. Transcription of the nifDK operon is initiated at a site located 46 nucleotides upstream of the proposed translation initiation codon. nifH transcription initiates predominantly at a site 152 nucleotides upstream of the proposed translation initiation codon. An additional minor start for nifH is found 35 nucleotides downstream of the major initiation site. The nucleotide sequences of these promoter sites are presented. Comparison of the major R. japonicum nif promoter sequences reveals a high degree of sequence homology with the conserved sequences clustered in the -11 to -15, -21 to -25, -27 to -31, and -38 to -41 regions. Conservation is also observed for the -11 to -15 and -21 to -25 regions with the R. meliloti nifHDK, a cowpea Rhizobium nifH, and even Klebsiella pneumoniae nif promoters. The -27 to -31 and -38 to -42 region homologies are not conserved with the other known nif promoters. These results are discussed in light of models for nif promoter activation.