gebhart/patrepeval huggingface dataset:
A Conductive Additive to Enhance Formation of a Lead/Acid Battery (1992)

Barium metaplumbate, a conductive ceramic having the perovskite structure, is relatively stable in sulfuric acid. Addition of this material in positive plates in a lead/acid battery significantly improves formation efficiency. The formation mechanism is changed when the conductive particles are dispersed in the plate. Formation not only proceeds from the grid toward the center of the pellet but also slowly around the conductive particles in the plate. The conductive paths of grow and make connection with each other during formation to establish a network which further facilitates the formation.
An analysis of partial reactions in the overall chain elongation of saturated and unsaturated fatty acids by rat liver microsomes. (1977)

A direct correlation between rates of condensation and overall chain elongation has been observed with palmitoylCoA, 6,9-octadecadienoyl-CoA, and 6,9,12-octadecatrienoylCoA. Rates of condensation and overall chain elongation were all depressed when microsomes were used from rats raised on a balanced uersus a fat-free diet. This effect was more pronounced for palmitoyl-CoA than for the unsaturated substrates. The rates of the /?-hydroxyacyl-CoA dehydrase and 2-truns-enoyl-CoA reductase reactions were always much higher than for condensation and were not altered by dietary change. These findings show that condensation is rate-limiting and implicate it in overall control of chain elongation. In addition, a difference in the rate of Nethylmaleimide inhibition for condensation activity with palmitoyl-CoA versus unsaturated substrates provides direct evidence for the involvement of at least one different enzyme in the condensation systems using saturated versus polyunsaturated primers. Rates of both the condensation and 2-trans-enoyl-CoA reductase reactions were always elevated when bovine serum albumin was included in the incubations. In the absence of albumin, 20 to 30
El alza del precio de los alimentos preocupa a la hotelería (2008)

The test makes it possible to show the improvement of the perineal status during dorsal childbirth in decubitus side compared with the position in decubitus. The data collected prove to be in conformity with those of the literature, which is not very prolix on the subject! The secondary criteria are not improved, and professionals must carry out a reflexion concerning delivery, to adapt the recommendations for the introduction of such practice into a service, must carry out a reflexion. This study provides the scientific basis (NP1), which makes it possible to justify the diffusion of this position of expulsion if one is keen on the improvement of the perineal status.
Application of wireless sensor networks to aircraft control and health management systems (2011)

Use of fly-by-wire technology for aircraft flight controls have resulted in an improved performance and reliability along with achieving reduction in control system weight. Implementation of full authority digital engine control has also resulted in more intelligent, reliable, light-weight aircraft engine control systems. Greater reduction in weight can be achieved by replacing the wire harness with a wireless communication network. The first step towards fly-by-wireless control systems is likely to be the ...
PSITTACINE VIRAL DISEASES: A PERSPECTIVE (1989)

The viral diseases of the parrot family are a major frustration for the aviculturalist and the avian veterinarian. Through a worldwide effort, however, progress is being made toward un derstanding and managing these diseases. Unfortunately, emerging information is disseminated in literature sources not readily available to most avian practitioners. The purpose of this review is to consolidate current knowledge in a rapidly evolving area of veterinary medicine. The once tenuous possibility of controlling psittacine viral diseases is becoming reality.
Plain Radiography and Magnetic Resonance Imaging Diagnostics in Osteoarthritis: Validated Staging and Scoring (2009)

Osteoarthritis is the most common joint disorder worldwide, and it has an enormous socioeconomic impact both in the United States and throughout the world. Conventional radiography is the simplest and least expensive imaging method for assessing osteoarthritis of the knee. Radiography is able to directly visualize osseous features of osteoarthritis, including marginal osteophytes, subchondral sclerosis, and subchondral cysts, and it is used in clinical practice to confirm the diagnosis of osteoarthritis and to monitor progression of the disease. However, the assessment of joint-space width provides only an indirect estimate of cartilage thickness and meniscal integrity. Magnetic resonance imaging, with its unique ability to examine the joint as a whole organ, holds great promise with regard to the rapid advancement of knowledge about the disease and the evaluation of novel treatment approaches. Magnetic resonance imaging has been applied widely in quantitative morphometric cartilage assessment, and compositional measures have been introduced that evaluate chondral integrity. In addition, magnetic resonance imaging-based validated semiquantitative whole-organ scoring methods have been applied for cross-sectional and longitudinal joint evaluation. This review describes currently applied radiographic and magnetic resonance imaging staging and scoring methods for the assessment of osteoarthritis of the knee and focuses on the strengths and weaknesses of the two modalities with regard to their use in clinical trials and epidemiologic studies.
Sensing characteristics of an optical three-axis tactile sensor under combined loading (2004)

This paper describes precision enhancement of an optical three-axis tactile sensor capable of detecting both normal force and tangential force. The sensor's single cell consists of a columnar feeler and 2-by-2 conical feelers. We have derived equations to precisely estimate the three-axis force from the area-sum and area-difference of the conical feelers' contact areas by taking into account wrench-length shrinkage caused by a vertical force. To evaluate the equations and determine constants included in the equations, we performed a series of calibration experiments using a manipulator-mounted tactile sensor and a combined load-testing machine. Subsequently. to evaluate the tactile sensor's practicality. it was mounted on the end of a robotic manipulator which rubbed flat specimens such as brass plates with step-heights of δ=0.05, 0.1, 0.2 mm and a brass plate with no step-height. We showed from the experimental data that the optical three-axis tactile sensor can detect not only the step-heights but also the distribution of the coefficient of friction, and that the sensor can detect fine plate inclination with accuracy to about ±0.4°.
Green oxidations with laccase–mediator systems (2006)

Laccases are oxidase enzymes produced by 'white rot' fungi as part of a complex armoury of redox enzymes used to break down lignin--part of the carbon cycle of nature. Laccases alone or in combination with redox co-catalysts have been shown to oxidize xenobiotic compounds under conditions that can be described as 'green'. This paper describes some novel oxidations using the laccase-mediator method and some current limitations to the use of this technology.
Isolation of enzyme-bound peptide intermediates in tyrocidine biosynthesis (1970)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIsolation of enzyme-bound peptide intermediates in tyrocidine biosynthesisFritz Lipmann, Robert Roskoski, Jr., Horst Kleinkauf, and Wieland GeversCite this: Biochemistry 1970, 9, 25, 4846–4851Publication Date (Print):December 8, 1970Publication History Published online1 May 2002Published inissue 8 December 1970https://pubs.acs.org/doi/10.1021/bi00827a003https://doi.org/10.1021/bi00827a003research-articleACS PublicationsRequest reuse permissionsArticle Views111Altmetric-Citations42LEARN 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
Netrin-1 Derived from the Ventricular Zone, but not the Floor Plate, Directs Hindbrain Commissural Axons to the Ventral Midline (2017)

Netrin-1 (Ntn1) emanating from the ventral midline has been thought to act as a long-range diffusible chemoattractant for commissural axons (CAs). However, CAs still grow towards the midline in the absence of the floor plate (FP), a glial structure occupying the midline. Here, using genetically loss-of-function approaches in mice, we show that Ntn1 derived from the ventricular zone (VZ), but not the FP, is crucial for CA guidance in the mouse hindbrain. During the period of CA growth, Ntn1 is expressed in the ventral two-thirds of the VZ, in addition to the FP. Remarkably, deletion of Ntn1 from the VZ and even from the dorsal VZ highly disrupts CA guidance to the midline, whereas the deletion from the FP has little impact on it. We also show that the severities of CA guidance defects found in the Ntn1 conditional mutants were irrelevant to their FP long-range chemoattractive activities. Our results are incompatible with the prevailing view that Ntn1 is an FP-derived long-range diffusible chemoattractant for CAs, but suggest a novel mechanism that VZ-derived Ntn1 directs CAs to the ventral midline by its local actions.
Clinical Implications of VEGF, TGF-beta1, and IL-1beta in Patients with Advanced Non-small Cell Lung Cancer (2013)

Serum VEGF-A, TGF-1β, and IL-1β levels, in addition to leukocyte and platelet counts, are shown to be associated with clinical outcomes. Leukocyte and platelet counts are correlated with serum VEGF-A and TGF-β1 levels.
On the Application of LDPC Codes to Arbitrary Discrete-Memoryless Channels (2004)

We discuss three structures of modified low-density parity-check (LDPC) code ensembles designed for transmission over arbitrary discrete memoryless channels. The first structure is based on the well-known binary LDPC codes following constructions proposed by Gallager and McEliece, the second is based on LDPC codes of arbitrary (q-ary) alphabets employing modulo-q addition, as presented by Gallager, and the third is based on LDPC codes defined over the field GF(q). All structures are obtained by applying a quantization mapping on a coset LDPC ensemble. We present tools for the analysis of nonbinary codes and show that all configurations, under maximum-likelihood (ML) decoding, are capable of reliable communication at rates arbitrarily close to the capacity of any discrete memoryless channel. We discuss practical iterative decoding of our structures and present simulation results for the additive white Gaussian noise (AWGN) channel confirming the effectiveness of the codes.
Detection of Methylated Circulating DNA as Noninvasive Biomarkers for Breast Cancer Diagnosis (2017)

Internationally, breast cancer is the most common female cancer, and is induced by a combination of environmental, genetic, and epigenetic risk factors. Despite the advancement of imaging techniques, invasive sampling of breast epithelial cells is the only definitive diagnostic procedure for patients with breast cancer. To date, molecular biomarkers with high sensitivity and specificity for the screening and early detection of breast cancer are lacking. Recent evidence suggests that the detection of methylated circulating cell-free DNA in the peripheral blood of patients with cancer may be a promising quantitative and noninvasive method for cancer diagnosis. Methylation detection based on a multi-gene panel, rather than on the methylation status of a single gene, may be used to increase the sensitivity and specificity of breast cancer screening. In this review, the results of 14 relevant studies, investigating the efficacy of cell-free DNA methylation screening for breast cancer diagnosis, have been summarized. The genetic risk factors for breast cancer, the methods used for breast cancer detection, and the techniques and limitations related to the detection of cell-free DNA methylation status, have also been reviewed and discussed. From this review, we conclude that the analysis of peripheral blood or other samples to detect differentially methylated cell-free DNA is a promising technique for use in clinical settings, and may improve the sensitivity of screening for both, early detection and disease relapse, and thus improve the future prognosis of patients with breast cancer.
Dynamic performance of a static synchronous compensator with energy storage (2002)

This paper discusses the integration of a static synchronous compensator (STATCOM) with an energy storage system in damping power oscillations. The performance of the STATCOM, a self-commutated solid-state voltage inverter, call be improved with the addition of energy storage. In this study, a 100 MJ SMES coil is connected to the voltage source inverter front-end of a STATCOM via a DC-DC chopper. The dynamics of real and reactive power responses of the integrated system to system oscillations are studied using an electromagnetic transient program PSCAD/sup TM//EMTDC/sup TM/ and the findings are presented. The results show that, depending on the location of the STATCOM-SMES combination, simultaneous modulation of real and reactive power can significantly improve the performance of the combined compensator. The paper also discusses some of the control aspects in the integrated system.
Isolation of High-Frequency Recombining Strains from <i>Escherichia coli</i> Containing the V Colicinogenic Factor (1968)

The isolation and characterization of high-frequency recombining strains from different Escherichia coli host cells containing either the F factor or the Col V factor are described. The strains (with one exception) formed from three of the V(+) parents showed the same origin and polarity of transfer (xyl-arg-pro-trp-his-mal). The Hfr strains formed from the one remaining V(+) and the F(+) host cells showed a greater variety in their points of origin. In addition, several Hfr strains isolated from V(+) parents lost the ability to produce colicin V. F(v) (+) segregants of these were isolated, and the F(v) factors appeared to retain their preferential site for Hfr formation, but they lacked other propertes controlled by the Col V factor. Chromosomal integration of episomes and its relation to the fertility of F(+) and V(+) strains are discussed. Production of colicin V appeared to be uninfluenced by the state of the Col V factor within the cell.
Conservation des graines et les problèmes de levée de dormance chez les feuillus précieux (1992)

Pour rpondre un objectif de production de semences forestires de qualit, il est ncessaire de prendre en compte un certain nombre de leurs caractristiques :
An Effective Method to Extract Web Content Information (2018)

To simplify the operation of web text content extraction and improve the accuracy of that, a new extraction method based on text-punctuation distribution and tag features (TPDT) is proposed. Combining the distribution of text-punctuation and tag features. Calculating the text-punctuation density in different text blocks and get the maximum continuous sum of density to extracting the best text content from web pages. The method effectively solves the problem of noisy information filtering and text content extraction without the training and manual processing. Experimental results on web pages randomly selected from different portal websites show that the TPDT method has good applicability on various news pages.
High throughput cross-interaction measures for human IgG1 antibodies correlate with clearance rates in mice (2015)

Although improvements in technology for the isolation of potential therapeutic antibodies have made the process increasingly predictable, the development of biologically active monoclonal antibodies (mAbs) into drugs can often be impeded by developability issues such as poor expression, solubility, and promiscuous cross-reactivity. Establishing early stage developability screening assays capable of predicting late stage behavior is therefore of high value to minimize development risks. Toward this goal, we selected a panel of 16 monoclonal antibodies (mAbs) representing different developability profiles, in terms of self- and cross-interaction propensity, and examined their downstream behavior from expression titer to accelerated stability and pharmacokinetics in mice. Clearance rates showed significant rank-order correlations to 2 cross-interaction related assays, with the closest correlation to a non-specificity assay on the surface of yeast. Additionally, 2 self-association assays correlated with each other but not to mouse clearance rate. This case study suggests that combining assays capable of high throughput screening of self- and cross-interaction early in the discovery stage could significantly lower downstream development risks.
A SAW-Less Tunable RF Front End for FDD and IBFD Combining an Electrical-Balance Duplexer and a Switched-<italic>LC</italic> N-Path LNA (2018)

This paper proposes a surface-acoustic wave (SAW)-less tunable RF front end (RF-FE) using an electrical-balance duplexer (EBD) integrated with a switched-LC N-path low-noise amplifier (LNA). The EBD cancels the transmitter-receiver (TX-RX) leakage at the RX frequency by dynamically optimizing the balance of a hybrid transformer, which enables in-band full-duplex (IBFD) operation. A transconductor-based LNA in parallel with a switched-LC N-path network creates input and output notches to reject TX leakage for frequency-division duplexing (FDD) operation. The LNA's signal-handling capability is enhanced via optimum switch biasing. Fabricated in 0.18-μm SOI CMOS, the RF-FE offers >50-dB tunable rejection from the TX port to LNA output at both TX and RX frequencies, for all 3GPP bands from 0.7 to 1 GHz (i.e., FDD case). It is the first tunable RF-FE including an LNA that achieves +70-dBm TX-path IIP <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> , and <;-100-dBm IM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> at +20-dBm TX power when a full-duplex spaced jammer is applied at the antenna (FDD case). It is also the first to handle >+30-dBm in-band TX power while cancelling the self-interference by >50 dB (i.e., IBFD case). The RF-FE consumes 62.5 mW at 1 GHz with 11.7-dB RX cascaded NF, 3.6-dB TX insertion loss, and 9.62 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> active area.
Properties of Polylactide Inks for Solvent-Cast Printing of Three-Dimensional Freeform Microstructures (2014)

Solvent-cast printing is a highly versatile microfabrication technique that can be used to construct various geometries such as filaments, towers, scaffolds, and freeform circular spirals by the robotic deposition of a polymer solution ink onto a moving stage. In this work, we have performed a comprehensive characterization of the solvent-cast printing process using polylactide (PLA) solutions by analyzing the flow behavior of the solutions, the solvent evaporation kinetics, and the effect of process-related parameters on the crystallization of the extruded filaments. Rotational rheometry at low to moderate shear rates showed a nearly Newtonian behavior of the PLA solutions, while capillary flow analysis based on process-related data indicated shear thinning at high shear rates. Solvent vaporization tests suggested that the internal diffusion of the solvent through the filaments controlled the solvent removal of the extrudates. Different kinds of three-dimensional (3D) structures including a layer-by-layer tower, nine-layer scaffold, and freeform spiral were fabricated, and a processing map was given to show the proper ranges of process-related parameters (i.e., polymer content, applied pressure, nozzle diameter, and robot velocity) for the different geometries. The results of differential scanning calorimetry revealed that slow solvent evaporation could increase the ability of PLA to complete its crystallization process during the filament drying stage. The method developed here offers a new perspective for manufacturing complex structures from polymer solutions and provides guidelines to optimize the various parameters for 3D geometry fabrication.
A new variable reluctance motor utilizing an auxiliary commutation winding (2003)

A novel concept for solving the current commutation and energy circulation problems in conventional variable reluctance motors (VRMs) is presented. The concept enables the energy stored in the magnetic field to be retained and utilized within the motor instead of being returned to the source. A novel VRM and two companion converters are proposed and described. The operating principles of the motor and the converters are presented. Simulation results based on a linear model are presented to demonstrate the degree of improvement that can be realized. By retaining and utilizing the field energy within the machine by utilizing commutation windings, the new motors are free from the current commutation problem and excitation penalty normally associated with VRMs. Consequently, compared with conventional VRMs the new motors have (1) better turn-off and turn-on performance; (2) higher speed capacity; (3) higher torque density; and (4) potential for higher efficiency.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Comparison between Antigen-Capture ELISA and Conventional Methods Used for Titration of Infectious Bursal Disease Virus (1996)

Two antigen-capture enzyme-linked immunosorbent assays (polyclonal and monoclonal AC-ELISAs) were developed and evaluated for titration of infectious bursal disease viruses (IBDVs) propagated in different host systems, namely BGM-70 continuous cell line, primary chicken embryo fibroblast cells, and chicken bursa of Fabricius. The polyclonal system was more sensitive (P < 0.05) than the monoclonal system but both were specific as indicated by the negative results obtained with three non-IBDVs. The results revealed that the conventional systems used for titration of IBDVs (cell cultures and embryonating chicken eggs) were more sensitive than the polyclonal AC-ELISA.
Corneal Mechanical Thresholds Negatively Associate With Dry Eye and Ocular Pain Symptoms (2016)

Mechanical detection and pain thresholds measured on the cornea are correlated with dry eye symptoms and ocular pain. This suggests hypersensitivity within the corneal somatosensory pathways in patients with greater dry eye and ocular pain complaints.