gebhart/patrepeval huggingface dataset:
Study on temperature distribution at busbar connection based on contact resistance of different plating contact surface (2013)

This paper discusses measurement of temperature on busbar connection based on contact resistance and plating material in relation to the value of contact resistance. This study is intended to prevent failure when busbar connection is attached. The failure of the electrical connection can occur due to bad contact so that the contact resistance is increased, high losses, overheating, and it can even cause a fire hazard. Thereare three test samples of modeled: copper busbar connection without plating, copper busbar connection with nickel plating and copper busbar connection with silver plating. The contact resistance of each sample was measured at contact pressure of 12 MPa. Subsequently the samples loaded with the current of 350 A and temperature at the connection was measured and simulated until steady state condition reached. The results show that the temperature at the contact area is higher than that of busbar appears caused by the contact resistance. Both measurement and simulation results show that busbar connection with silver plating having lower contact resistance and lower maximum temperature, followed by the connection with the nickel plating and busbar connection without plating.
New method for the reductive coupling of carbonyls to olefins. Synthesis of .beta.-carotene (1974)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNew method for the reductive coupling of carbonyls to olefins. Synthesis of .beta.-caroteneJohn E. McMurry and Michael P. FlemingCite this: J. Am. Chem. Soc. 1974, 96, 14, 4708–4709Publication Date (Print):July 1, 1974Publication History Published online1 May 2002Published inissue 1 July 1974https://pubs.acs.org/doi/10.1021/ja00821a076https://doi.org/10.1021/ja00821a076research-articleACS PublicationsRequest reuse permissionsArticle Views6134Altmetric-Citations448LEARN 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
Familial partial epilepsy with variable foci: A new partial epilepsy syndrome with suggestion of linkage to chromosome 2 (1998)

Familial partial epilepsy with variable foci (FPEVF) joins the recently recognized group of inherited partial epilepsies. We describe an Australian family with 10 individuals with partial seizures over four generations. Detailed electroclinical studies were performed on all affected and 17 clinically unaffected family members. The striking finding was that the clinical features of the seizures and interictal electroencephalographic foci differed among family members and included frontal, temporal, occipital, and centroparietal seizures. Mean age of seizure onset was 13 years (range, 0.75-43 years). Two individuals without seizures had epileptiform abnormalities on electroencephalographic studies. Penetrance of seizures was 62%. A genome-wide search failed to demonstrate definitive linkage, but a suggestion of linkage was found on chromosome 2q with a LOD score of 2.74 at recombination fraction of zero with the marker D2S133. FPEVF differs from the other inherited partial epilepsies where partial seizures in different family members are clinically similar. The inherited nature of this new syndrome may be overlooked because of relatively low penetrance and because of the variability in age at onset and electroclinical features between affected family members.
[Effects of traditional Chinese medicine on oral bacteria biofilm]. (2007)

The traditional Chinese medicine Galla chinensis and Nidus vespae could not only inhibit bacteria growth on oral bacterial biofilm, but also function by adjusting biofilm structure, composition and GTF activity of 24 h bacterial biofilm.
Role of Adsorbate Coverage on the Oxygen Dissociation Rate on Sr-Doped LaMnO3 Surfaces in the Presence of H2O and CO2 (2020)

Sr-doped LaMnO3 (LSM) is a promising oxygen reduction reaction electrocatalyst in solid oxide fuel cells and other electrochemical devices. The presence of CO2 and H2O has been reported to promote the oxygen dissociation reaction on LSM surfaces. Here, we investigate the coadsorption mechanism of O2 with H2O or CO2 by combining first-principles calculations of the (0 0 1) surface containing 25–100% Sr with thermodynamic adsorption models. The molecules were found to chemisorb by formation of charged oxygen, hydroxide, and carbonate species, and the adsorption energies were exothermic up to monolayer coverage. Low concentrations of H2O or CO2 do not compete with O2 for adsorption sites under relevant conditions. However, their presence contributes to the total amount of oxygen-containing species. The increased coverage of oxygen species provides a quantitative explanation for the reported enhancement in oxygen dissociation kinetics in the presence of H2O/CO2. This study thereby provides insights into oxygen exchange mechanisms on LSM surfaces.
Demographics, Care Patterns, and Outcomes of Patients Admitted to Cardiac Intensive Care Units (2019)

In a contemporary network of tertiary care CICUs, respiratory failure and shock predominated indications for admission and carried a poor prognosis. While patterns of practice varied considerably between centers, a substantial, low-risk population was identified. Multicenter collaborative networks, such as the CCCTN, could be used to help redesign cardiac critical care and to test new therapeutic strategies.
Genetic diversity mirrors trophic ecology in coral reef fish feeding guilds (2018)

Genetic diversity is essential for species persistence because it provides the raw material for evolution. For marine organisms, short pelagic larval duration (PLD) and small population size are characteristics generally assumed to associate with low genetic diversity. The ecological diversity of organisms may also affect genetic diversity with an expected corollary that more restricted habitat and dietary requirements could lead to a reduced genetic diversity because of pronounced genetic structuring. Here, we tested whether groups of species with narrower trophic niches displayed lower genetic diversity than those with broader niches. In order to test those predictions, we used different trophic guilds (i.e., groups of species having similar trophic habits) of coral reef damselfishes in Moorea (French Polynesia) for which we determined their genetic diversity using restriction site-associated DNA sequencing (RADseq) and their trophic ecology with stomach contents and stable isotope data. We found that pelagic feeders- the guild picking zooplankton in the water column- exhibited the lowest genetic diversity despite having the longest PLD and the largest population size. This guild had also the lowest variation in habitat characteristics and dietary composition compared to benthic feeders (i.e., those mainly grazing on algae) and the intermediate group (i.e., those feeding on zooplankton, filamentous algae and small benthic invertebrates). Our findings highlight the association between trophic ecology and genetic diversity that should be more commonly investigated in population genetics.
Ribozymes in Wonderland (1997)

Robertson, Michael P. Bull, Jim On p. 

[614][1] of this issue, Wright and Joyce report the successful evolution of a catalytic ribozyme selected for its ability to perform ligation. In their Perspective, Ellington et al . comment on the advances in this study over previous efforts and what this work tells us about evolution.

 [1]: http://www.sciencemag.org/cgi/content/full/276/5312/614
Abstract LB-177: A supercritical turmeric extract prevents small intestinal and colonic tumors in the APCMin/+ mice by suppressing proliferation and cancer stem cell markers (2012)

Abstract CRC is one of the most commonly diagnosed cancers in the United States. Curcumin, a principle compound in turmeric, has been extensively investigated and proven to be antiinflammatory and anticarcinogenic against numerous cancers including CRC. Turmeric is consumed as a dietary ingredient by large populations and turmeric extracts as a dietary supplement by healthy as well as high-risk individuals with various chronic diseases. Turmeric, however, contains over 300 different compounds including essential oils; curcuminoids, turmerones, etc. Most turmeric extracts commonly used as dietary supplements contains &amp;lt;6% curcuminoids; however, to date no studies have been undertaken to determine whether these turmeric extracts are effective or not in comparison to curcumin in preventing colonic tumors. In this study, we tested a supercritical extract of turmeric (TurmericForce™) in comparison to an equal amount of curcumin against the APC-min/+ SI and colon polyposis model. Six-week-old male APC-Min/+ mice (n = 15 per group) were fed with control AIN-76A diet or diets containing 2,000 ppm turmeric extract or 2,000 ppm or 120 ppm curcumin for 14 weeks; intestinal tumors were then evaluated for tumor incidence and multiplicity. Mice fed with either 2,000 ppm turmeric extract or curcumin exhibited a significantly suppressed SI polyp multiplicity by 26.3 ±8.3 (Mean±SD; 45.5%, p&amp;lt;0.0001) and 32.5 ±7.8 (32.5%, P&amp;lt;0.0001), respectively. Importantly, the 2,000 ppm turmeric extract showed significantly (p&amp;lt;0.026) better inhibitory effect compared to 2,000 ppm curcumin in SI polyp suppression. Colon tumor incidences were 77%, 54%, and 50% for mice fed control, turmeric extract and curcumin, respectively. Furthermore, colonic tumor multiplicities were 1.46 ± 1.1 (control); 0.57± 0.6 (turmeric extract, 61%inhibition, p&amp;lt;0.01) and 0.61±0.65 (2,000 ppm curcumin, 56% inhibition, p&amp;lt;0.015). In contrast, 120 ppm curcumin (equal to curcumin content in turmeric extract) produced limited SI tumor inhibitory effects (14% inhibition) in APC-Min/+ mice. Both turmeric extract and curcumin showed a significant reduction is PCNA and β-catenin expression levels and an increase in p21 and TUNEL positive cells. Also, Real time PCR and IHC analysis showed a significant reduction in cancer stem (CD133 and ALDH1) marker positive cells by the turmeric extract and curcumin. These results suggest that the supercritical turmeric extract had equal or better chemopreventive properties than curcumin alone in suppressing intestinal tumorigenesis. {Supported by Kerley-Cade Endowment} Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 103rd Annual Meeting of the American Association for Cancer Research; 2012 Mar 31-Apr 4; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2012;72(8 Suppl):Abstract nr LB-177. doi:1538-7445.AM2012-LB-177
Architectural and design perspectives in a modular multi-microprocessor, the DPS-1 (1979)

For the last decade, one of the most active and exciting areas in computer architecture is the interconnection of computers to form parallel or concurrent systems. These systems are generally called "multiprocessors" or "distributed processors" and may range in organization from processors sharing a common memory to geographically isolated computer installations connected as a network. The low cost and ease of implementation of LSI microprocessors make them extremely attractive design possibilities for the implementation of general-purpose multiprocessor systems. Furthermore, the MOS technology used to implement the majority of microprocessors limits the instruction execution rates such that many applications are compute bound rather than limited by other system bandwidths. This indicates that a number of microprocessors may be effectively interconnected to increase the general system performance.
Novel acetic acid bacteria from cider fermentations: Acetobacter conturbans sp. nov. and Acetobacter fallax sp. nov (2020)

Strains LMG 1627<sup>T</sup>, LMG 1636<sup>T</sup> and LMG 1637 were all isolated from cider fermentations in the 1940s and 1950s. A recent study based on MALDI-TOF MS and <i>dnaK</i> gene sequence analyses suggested they represented novel <i>Acetobacter</i> species. In the present study, we determined the whole-genome sequences of these strains and analysed their phenotypic and chemotaxonomic characteristics. A phylogenomic analysis based on 107 single-copy core genes revealed that they represented a single <i>Acetobacter</i> lineage with <i>Acetobacter aceti</i>, <i>Acetobacter sicerae</i>, <i>Acetobacter musti</i> and <i>Acetobacter oeni</i>, <i>Acetobacter estunensis</i> and with <i>Acetobacter nitrogenifigens</i> as an outgroup to this cluster. OrthoANIu value and dDDH analyses among these and other <i>Acetobacter</i> type strains confirmed that these three strains represented two novel <i>Acetobacter</i> species, which could be differentiated from other closely related type strains of <i>Acetobacter</i> by different phenotypic tests, such as ketogenesis from glycerol. We therefore propose to classify strain LMG 1627<sup>T</sup> in the novel species <i>Acetobacter conturbans</i> sp. nov., with LMG 1627<sup>T</sup> (=NCIMB 8945<sup>T</sup>) as the type strain, and to classify strains LMG 1636<sup>T</sup> and LMG 1637 in the novel species <i>Acetobacter fallax</i> sp. nov., with LMG 1636<sup>T</sup> (=NCIMB 8956<sup>T</sup>) as the type strain.
Fabrication of Surface Plasmon‐Coupled Si Nanodots in Au‐Embedded Silicon Oxide Nanowires (2010)

High-density amorphous silicon nanodots are easily produced by irradiating gold-nanoparticle-embedded silicon oxide nanowires with a low-intensity electron beam. The optical characteristics of Si nanodots in the vicinity of gold nanoparticles exhibit evidence of strong coupling to the surface plasmon resonance of the Au nanoparticles, as manifested by their markedly enhanced electron-induced excitation in our monochromated scanning transmission electron microscopy–electron energy-loss spectroscopy measurements.
Degradation of crystal violet (CV) from aqueous solutions using ozone, peroxone, electroperoxone, and electrolysis processes: a comparison study (2020)

Abstract In this study, the degradation of crystal violet (CV) was investigated by different oxidation processes; ozone (OZ), peroxone (PO), electrolysis (E), electrolysis/H 2 O 2 (ECP), electroperoxone (EPO), and electrolysis/peroxene/H 2 O 2 (EPOP). Main parameters including contact time, pH, CV concentration, and effect of scavengers were studied. The results showed that all processes were capable of CV decolorization. Among these processes, peroxone and electrolysis/peroxene/H 2 O 2 with efficiency about &gt; 90% were more effective than other ones. A significant decrease in oxidation rate of CV was observed by adding scavengers. This fact was due to higher affinity to react with free radicals. To confirm degradation of CV, FTIR spectra and nitrate ion level were taken. Also, to recognize toxicity the treated wastewater was tested against coliform bacteria . Growths of Escherichia coli in EMB medium were observed. As a result, it confirms that the treated effluent can be discharged to environment.
Demo: A Reinforcement Learning-based Flexible Duplex System for B5G with Sub-6 GHz (2020)

In this paper, we propose a reinforcement learning-based flexible duplex system for B5G with Sub-6 GHz. This system combines full-duplex radios and dynamic spectrum access to maximize the spectral efficiency. We verify this method's feasibility by implementing an FPGA-based real-time testbed. In addition, we compare the proposed algorithm with the result derived from the numerical analysis through system-level evaluations.
Bioengineered Dental Tissues Grown in the Rat Jaw (2008)

Our long-term objective is to develop methods to form, in the jaw, bioengineered replacement teeth that exhibit physical properties and functions similar to those of natural teeth. Our results show that cultured rat tooth bud cells, seeded onto biodegradable scaffolds, implanted into the jaws of adult rat hosts and grown for 12 weeks, formed small, organized, bioengineered tooth crowns, containing dentin, enamel, pulp, and periodontal ligament tissues, similar to identical cell-seeded scaffolds implanted and grown in the omentum. Radiographic, histological, and immunohistochemical analyses showed that bioengineered teeth consisted of organized dentin, enamel, and pulp tissues. This study advances practical applications for dental tissue engineering by demonstrating that bioengineered tooth tissues can be regenerated at the site of previously lost teeth, and supports the use of tissue engineering strategies in humans, to regenerate previously lost and/or missing teeth. The results presented in this report support the feasibility of bioengineered replacement tooth formation in the jaw.
RPN2-mediated glycosylation of tetraspanin CD63 regulates breast cancer cell malignancy (2014)

These findings describe a novel and important function of RPN2-mediated CD63 glycosylation, which regulates MDR1 localization and cancer malignancy, including drug resistance and invasion.
Online quantitative analysis of multispectral images of human body tissues (2013)

A method is developed for online monitoring of structural and morphological parameters of biological tissues (haemoglobin concentration, degree of blood oxygenation, average diameter of capillaries and the parameter characterising the average size of tissue scatterers), which involves multispectral tissue imaging, image normalisation to one of its spectral layers and determination of unknown parameters based on their stable regression relation with the spectral characteristics of the normalised image. Regression is obtained by simulating numerically the diffuse reflectance spectrum of the tissue by the Monte Carlo method at a wide variation of model parameters. The correctness of the model calculations is confirmed by the good agreement with the experimental data. The error of the method is estimated under conditions of general variability of structural and morphological parameters of the tissue. The method developed is compared with the traditional methods of interpretation of multispectral images of biological tissues, based on the solution of the inverse problem for each pixel of the image in the approximation of different analytical models.
Thin-Disk Multipass Amplifier Delivering Radially Polarized Ultrafast Pulses with an Average Output Power of 1 kW (2019)

We present the amplification of ultrafast laser beams with radial and or azimuthal polarization using an Yb:YAG thin-disk multipass amplifier. The seed laser source emitted linearly polarized beams with an output power of 188 W at a repetition rate of 300 kHz and a pulse duration of 6.5 ps. Before amplification, the linear polarization was converted to radial polarization using a polarization converter composed of a segmented half-wave plate. The conversion efficiency was measured to be 85 %. Hence, the multipass amplifier was seeded with radially polarized laser pulses with an average power of 160 W. The amplifier gain medium is an Yb:YAG thin-disk mounted on a diamond heat sink. It has a thickness of 125 μm and a diameter of 20 mm. As pump cavity we used a 44-pass thin-disk pump module which allows a maximum pump spot size of 10 mm. The disk was pumped at the "zero-phonon-line" with stabilized diodes emitting at a wavelength of 969 nm. In order to extract the energy from the crystal, the seed pulses were folded 30 times over the disk using an array of 60 individual adjustable plane mirrors placed at a distance of 1.37 m in front of the disk [1]. With this approach, the seed beam diameter in the amplifier was oscillating between 3 mm and 8 mm over a total propagation length of approximately 150 m. Figure 1 (a) shows the amplifier's output power and efficiency as function of incident pump power. Up to 1002 W of average output power was obtained at a pump power of 2170 W. This corresponds to an amplification efficiency of 38.7 %. With the repetition rate of 300 kHz, the energy per pulse was 3.34 mJ. The measured autocorrelation trace exhibits a pulse duration of 7.5 ps by assuming a Gaussian temporal pulse shape. Figure 1 (b) depicts the far-field beam profile together with the qualitative polarization analysis. This is, to the best of our knowledge, the highest average output power and pulse energy reported so far for radially polarized ultrafast lasers.
The effect of fetal pig size and stage of gestation on tissue fatty acid metabolism and profile (2005)

The fetus requires an adequate supply of fatty acids for optimum growth and development. It has been hypothesized that reduced activity of enzymes of fatty acid metabolism could contribute to inadequate fetal growth. In a porcine model of differential fetal growth we examined heart and liver fatty acid synthase, delta5-desaturase and delta6-desaturase gene expression and measured hepatic fatty acid profile to assess long-chain polyunsaturated fatty acid status. On gestation days 45, 65 and 100 sows were killed and tissues extracted from an average-sized fetus and the smallest fetus from each litter. As early as day 45, considerable hepatic delta5- and delta6-desaturase was detected, and this expression significantly increased as gestation progressed. In contrast, cardiac desaturase expression remained stable with time. Fatty acid synthase expression was greatest at day 65 in the liver, but was not expressed in the heart. Overall, the smallest fetus did not exhibit reduced tissue delta5- or delta6-desaturase expression or compromised polyunsaturated fatty acid status at any stage. In fact, small fetuses expressed more cardiac delta5-desaturase than their average-sized siblings, possibly in response to a stress to the heart. It is clear from this study that fatty acid metabolism changes markedly as gestation progresses, and reduced fatty acid supply does not cause inadequate growth in this porcine model of fetal development.
Ligand Dissociation in the Excited State of 2-Thenoyltrifluoroacetonatoeuropium(III) Ion in Aqueous Solution (2000)

Abstract In the emission decay kinetics of Eu(III)–2-thenoyltrifluoroacetone (Htta) aqueous system, we found out a new quenching mechanism due to the tta− dissociation from Eu(tta)2+ in the excited state. The mechanism well explained the double-exponential decay of the fluorescence observed in the Eu(III)-Htta system. The analysis of the decay curve observed at various temperatures gave the rate constants and thermodynamic parameters for the tta− dissociation from Eu(tta)2+.