gebhart/patrepeval huggingface dataset:
Thermodilution technique for measurement of cardiac output during artificial ventilation (1981)

The feasibility of using the thermodilution method to monitor cardiac output during artificial ventilation was studied in anesthetized pigs. Normal saline (0.5 ml) at room temperature was injected into the left ventricle or the right atrium. The dilution curves were detected in the aortic arch and the pulmonary artery, respectively. The ventilation rate was 10 cycles/min at end-expiratory pressures of 0, 5, 10, and 15 cmH2O. For each level, 50 measurements of cardiac output were performed at regular intervals over the ventilatory cycle. The order of measurements were randomly selected. The average of each series of 50 measurements showed excellent correlation with the estimates of cardiac output based on the direct Fick method for oxygen. The maximum difference between the values of cardiac output randomly measured by the thermodilution method was 40% for the left side of the heart and 70% for the right side. However, when the values of cardiac output were sorted according to the specific phases of the respiratory cycle, there was a systematic variation with a small random error. For the left side of the heart, a satisfactory moment of injection for estimation of mean cardiac output appeared to be at the end of the spontaneous expiration. On the other hand, the analysis of cardiac output values at the right side did not reveal any satisfactory moment for injectate administration under changing circumstances, e.g., positive end-expiratory pressure.
Effect of marine Eubothrium sp. (Cestoda: Pseudophyllidea) on the growth of Atlantic salmon, Salmo salar L. (2001)

Atlantic Salmon, Salmo salar L., experimentally infected with marine Eubothrium sp. were kept together with uninfected salmon in the laboratory for 11 months in two tanks, 80 infected and 80 uninfected in each tank. The infected fish had a reduced growth rate compared with the uninfected fish. Significant differences in growth between infected and uninfected fish were not observed until several months post‐infection. There was no correlation between the number of Eubothrium sp. and fish weight, indicating that even low intensity alters the growth rate of the salmon. The cestode had the same effect on both sexes of salmon. Haematocrit level was found to be significantly lower in infected compared with uninfected salmon in one of the samples during the experiment.
Running Around in Circles: Following the “Jumping Genes” of Antibiotic Resistance (2000)

Stanley Falkow currently is a professor of microbiology and immunology at Stanford University School of Medicine. He received his education at the University of Maine and Brown University. He is a member of the National Academy of Sciences and the American Academy of Arts and Sciences, and he served as the president of the American Society for Microbiology from 1996 to 1997. He has received many prizes for his work in microbial pathogenicity, including the Paul Ehrlich-Ludwig Darmstaedter Prize, the Becton Dickinson Award in Clinical Microbiology, the Altmeier Medal from the Surgical Infectious Diseases Society of America, Bristol-Myers Squibb Award for Distinguished Achievement in Infectious Disease Research, and the Maxwell-Finland Award, National of Infectious Diseases.
Guidelines for Management of IP Address Space (1992)

This document has been reviewed by the Federal Engineering Planning Group (FEPG) on behalf of the Federal Networking Council (FNC), the co-chairs of the Intercontinental Engineering Planning Group (IEPG), and the Reseaux IP Europeens (RIPE). There was general consensus by those groups to support the recommendations proposed in this document for management of the IP address space.
Babesiosis as a Cause of Fever in Patients Undergoing a Splenectomy (2011)

Babesiosis is an emerging infection most commonly acquired from a tick bite. We describe three hospitalized patients with fever attributable to babesiosis after a splenectomy. Splenectomy was done because of splenic enlargement due to unsuspected babesia infection in one patient and because of splenic perforation due to babesiosis in a second patient. The third patient underwent splenectomy for trauma and acquired babesiosis postoperatively from a blood transfusion. Our cases demonstrate the need to be vigilant for babesiosis in patients undergoing splenectomy.
High-performance low-cost indium phosphide MMICs for commercial wireless applications (1999)

We describe a high-volume InP-based HEMT and HBT production line that produces both monolithic microwave and millimeter-wave circuits for wireless applications. Products as diverse as 900 MHz InP HBT cellular power amplifiers and 155 GHz InP HEMT low noise amplifiers are manufactured on the same fab line, modeled after our successful GaAs HEMT and HBT fab line. These products have found acceptance in both high volume commercial wireless applications as well as more specialized millimeter wave applications.
Highly Porous Polyhedral Silsesquioxane Polymers. Synthesis and Characterization (1998)

Polyhedral octahydridosilsesquioxanes, [HSiO1.5]8 (1) and [(HSiMe2O)SiO1.5]8 (3) were hydrosilylatively copolymerized with stoichiometric amounts of the octavinylsilsesquioxanes, [vinylSiO1.5]8 (2) and [(vinylSiMe2O)SiO1.5]8 (4) in toluene using platinum divinyltetramethyldisiloxane, “Pt(dvs)”, as catalyst. The degree of condensation of the resultant four copolymers ranges from 43% to 81% depending on intercube chain lengths, as determined by solid state 13C and 29Si MAS NMR analyses, using cross-polarization (CP) techniques. The presence of residual functional groups was confirmed by diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS). Polymer porosities were measured using nitrogen sorption, positron annihilation lifetime spectroscopy (PALS), and small angle X-ray scattering (SAXS) methods. The combination of these three techniques allows a relatively complete description of the pore sizes and pore size distributions in these materials. The pores in the cube interiors are ∼0.3 nm in diameter, while those between the cubes range from 1 to 50 nm in diameter (for polymer 3 + 4). Nitrogen sorption analyses give specific surface areas (SSAs) of 380 to 530 m2/g with “observable” pore volumes of 0.19−0.25 mL/g.
Arylation of Olefin with Iodobenzene Catalyzed by Palladium (1973)

Abstract Arylation of propylene, ethylene, styrene, and methyl acrylate with iodobenzene was found to be catalyzed by metallic palladium in methanol to give methylstyrene, styrene, t-stilbene, and methyl cinnamate, respectively. Their yields and selectivities increased significantly by the addition of excess potassium acetate as an acceptor of hydriodic acid formed. The course of catalytic reaction is discussed in terms of the oxidative addition of iodobenzene to a palladium complex of low oxidation state.
Rheological behavior of a hydrophobically associating water soluble polymer (1994)

We have investigated experimentally the behavior of a water soluble associating polymer system, hydrophobically modified (hydroxypropyl)guar, with very few randomly distributed hydrophobic substituents along the chains. We focus mainly on the rheological effects due to the superposition of the reversible hydrophobic interaction network on the physical entanglement network in dense macromolecular systems of that kind. Both linear and nonlinear response to transient, steady, and oscillatory shear flow prove that, in the semidilute and moderately concentrated regime, the hydrophobically associating polymer behaves like a classical dense macromolecular system whose long-time dynamics can be described using only one long relaxation time, identified as a retarded disengagement time, much larger than the association lifetime. The temporary hydrophobically associating network can be destroyed when applying a critical shear stress τc, which is studied as a function of polymer concentration.
Genomic survey of prepulse inhibition in mouse chromosome substitution strains (2009)

Prepulse inhibition (PPI) is a measure of sensorimotor gating, a pre-attentional inhibitory brain mechanism that filters extraneous stimuli. Prepulse inhibition is correlated with measures of cognition and executive functioning, and is considered an endophenotype of schizophrenia and other psychiatric illnesses in which patients show PPI impairments. As a first step toward identifying genes that regulate PPI, we performed a quantitative trait locus (QTL) screen of PPI phenotypes in a panel of mouse chromosome substitution strains (CSSs). We identified five CSSs with altered PPI compared with the host C57BL/6J strain: CSS-4 exhibited decreased PPI, whereas CSS-10, -11, -16 and -Y exhibited higher PPI compared with C57BL/6J. These data indicate that A/J chromosomes 4, 10, 11, 16 and Y harbor at least one QTL region that modulates PPI in these CSSs. Quantitative trait loci for the acoustic startle response were identified on seven chromosomes. Like PPI, habituation of the startle response is also disrupted in schizophrenia, and in the present study CSS-7 and -8 exhibited deficits in startle habituation. Linkage analysis of an F(2) intercross identified a highly significant QTL for PPI on chromosome 11 between positions 101.5 and 114.4 Mb (peak LOD = 4.54). Future studies will map the specific genes contributing to these QTLs using congenic strains and other genomic approaches. Identification of genes that modulate PPI will provide insight into the neural mechanisms underlying sensorimotor gating, as well as the psychopathology of disorders characterized by gating deficits.
Optical imaging of hemoglobin distribution in human skin (2001)

We have developed a new four-wavelength optical imager to evaluate the oxygen supply in human skin for peripheral circulation. It measures the reflected light from human skin by a CCD and presents the maps of hemoglobin distribution. This paper describes the principle, system configuration and performance test for human foot during and after venous and arterial occlusion. The obtained images showed distinct local difference in skin oxygenation due to blood flow.
Progress towards two-dimensional biomedical imaging with THz spectroscopy (2002)

Terahertz spectroscopy represents a frontier in the field of biomedical imaging. It is possible to image complex objects that are opaque to visible and infrared light. In this paper, we have used THz imaging to reveal the structure inside a sunflower seed. We compare images based on time- and frequency-domain representations of the THz scans, and conclude that for this type of specimen the time-domain THz scans provide more detailed information than their frequency-domain counterparts.
Towards adaptive classification for BCI (2006)

Non-stationarities are ubiquitous in EEG signals. They are especially apparent in the use of EEG-based brain-computer interfaces (BCIs): (a) in the differences between the initial calibration measurement and the online operation of a BCI, or (b) caused by changes in the subject's brain processes during an experiment (e.g. due to fatigue, change of task involvement, etc). In this paper, we quantify for the first time such systematic evidence of statistical differences in data recorded during offline and online sessions. Furthermore, we propose novel techniques of investigating and visualizing data distributions, which are particularly useful for the analysis of (non-)stationarities. Our study shows that the brain signals used for control can change substantially from the offline calibration sessions to online control, and also within a single session. In addition to this general characterization of the signals, we propose several adaptive classification schemes and study their performance on data recorded during online experiments. An encouraging result of our study is that surprisingly simple adaptive methods in combination with an offline feature selection scheme can significantly increase BCI performance.
Fetal Exposure to Narcotics: Neonatal Sleep as a Measure of Nervous System Disturbance (1980)

Newborn infants, chronically exposed in utero to low doses of methadone with or without concomitant heroin, display more rapid eye movement sleep and less quiet sleep than control infants, while babies fetally exposed to both opiates and nonopiates have less organization of sleep states. Other perinatal factors, such as birth weight and gestational age, are related more to the amount of fetal drug exposure than to the type.
Synthèse des filtres LC (2009)

Le filtrage, qui consiste à isoler une bande de fréquences d'un signal de forme complexe, est une fonction très utilisée dans les ensembles électroniques. Parmi les filtres analogiques, les filtres passifs sont constitués d'inductances de haute qualité et de condensateurs, insérés entre deux résistances. Il s'agit en fait de circuits résonants ayant des propriétés sélectives en fréquences. Cet article présente les méthodes de conception des filtres LC, essentiellement basées sur la théorie de Cauer et Darlington, et parmi les nombreuses topologies, les structures en échelle majoritairement utilisées en pratique. Cette méthode de synthèse s'appuie sur les propriétés des dipôles et quadripôles, rappelées brièvement. De nombreux exemples de synthèse sont proposés tout au long de l'article, depuis le gabarit du filtre jusqu'aux valeurs réelles des composants L et C à implémenter, avec un complément sur les technologies de réalisation.
Un Nobel que alumbra (2014)

El Nobel de Fisica de 2014 ha reconocido el trabajo de los investigadores Isamu Akasaki, Hiroshi Amano y Shuji Nakamura por haber llegado, de manera independiente, al descubrimiento del diodo emisor de luz (LED) azul a partir del nitruro de galio (GaN). Esta invencion ha impulsado el desarrollo de fuentes de luz blanca mas eficientes, que alumbran la senda que nos conduce hacia un futuro mas sostenible y respetuoso con la naturaleza.
Biomarkers for screening and early detection of prostate cancer (2013)

Prostate cancer (PCa) represents a significant health burden and the high prevalence and natural course of the untreated disease make PCa ideal for screening and early detection. The aim of this review is to give an overview of the recent evidence on biomarkers for screening and early detection of PCa. A review of the current literature on prostate-specific antigen (PSA) and novel biomarkers in PCa diagnosis and screening was conducted using MEDLINE/PubMed to identify relevant publications. PSA is currently the main biomarker for PCa screening and diagnosis, and two out of three recent randomized controlled trials on PSA screening for PCa showed a 20–40% risk reduction of PCa-specific mortality in the screened group. In contrast, one study did not show any beneficial effect of PSA screening. Although each study had flaws, the study that reported no benefit from PSA screening had a high contamination rate in the control group and non-compliance in the screening group. However, PCa screening was associated with overdiagnosis, which led to overtreatment. Therefore, there is a need for novel biomarkers that are more specifically associated with PCa and its biological and clinical behaviour. Several such biomarkers are currently being investigated as an adjunct to PSA; however, none can currently replace PSA. Among novel biomarkers, PCa antigen 3 (PCA3) and TMPRSS2–ERG gene fusions appear to be most promising and, currently, PCA3 is reported as the more efficient diagnostic test in patients who have had a previous negative biopsy.
Intensity ridge and widths for tubular object segmentation and description (1996)

Introduces a technique for the automated description of tubular objects in 3D medical images. The goal of automated 3D object description is to extract a representation which consistently details the location, size, and structure of objects in 3D images using minimal user interaction. Such a representation provides a means by which objects can be classified, quantifiably evaluated, and registered. It also serves as a region of interest specification for visualization processes. The technique presented in this paper is suited for generating representations of 3D objects with nearly circular cross sections which have, possibly as a result of a global operation (e.g., blurring), intensity extrema near their centers. Such tubular objects commonly occur within human anatomy (e.g., vessels and selected bones). The medial axis of each of these objects is well approximated by its intensity ridge. The scales of the local maxima in medialness at all points along the ridge can be mapped to local width estimates. Together these measures capture the location, size, and structure of tubular objects. This paper covers the mathematical basis, the implementation issues, and the application of this technique to the extraction of vessels from 3D magnetic resonance angiographic images and bones from 3D X-ray computed tomographic images.
Growth and properties of dilute magnetic semiconductor superlattices containing Hg1−xMnxTe (1986)

We report details of the successful growth by molecular beam epitaxy of superlattices containing alternating layers of Hg1−xMnxTe and HgTe. These structures are the first superlattices containing layers of a mercury-based dilute magnetic semiconductor (Hg1−xMnxTe ) to be grown by any thin-film technique. The optical and electrical properties of these new magnetic multilayers are discussed.
MORPHOLOGY AND PROPERTIES OF COMPOSITES OF ULTRAHIGH MOLECULAR WEIGHT POLYETHYLENE AND FINELY-DIVIDED SILICON CARBIDE WITH NANOPARTICLES (2019)

The goal of the work is the investigation of the influence of finely-divided silicon carbide, synthesized in an electrothermal bubbling bed on the morphology and properties of polymer compositions based on ultrahigh molecular-weight polyethylene in obtaining block-type materials by the method of hot pressing and the coatings by the gas-flame spraying method. The methods of X-ray phase analysis, scanning electronic microscopy, X-ray microspectral analysis, as well as the standard methods of testing the physicomechanical, thermophysical, and tribotechnical properties of the resulting composites were used. The presence of SiC nanoparticles of size ≈ 50-70 nm distributed over the surfaces of synthesized SiC has been established by the electronic microscopy method. Nanoparticles are distributed on the surfaces of larger laminated and agglomerated structures of silicon carbide. In some places, threadlike formations from SiC nanoparticles with the aspect ratio ≈ 5-10 were observed. This is the advantage of application of synthesized SiC in polymer composites, since the manufacturing of products does not require special additional operations on distribution of SiC nanoparticles over the entire volume of composite material. It has been established that on obtaining block composites and coatings from dry mixture compositions one observes physical and chemical interaction of the composition components. Nanoparticles of finely-divided silicon carbide are built into supermolecular formations of the polymer which leads to its additional structuring and, with simultaneous formation of a physical grid of the introduced finely-divided filler, causes an increase in the wear resistance, heat resistance, thermal stability, thermal conductivity, and physicomechanical indices of composites and coatings and also decrease in the friction coefficient during operation in the conditions of dry friction.
Comparison of Multiple Enzyme Activatable Near-Infrared Fluorescent Molecular Probes for Detection and Quantification of Inflammation in Murine Colitis Models: (2021)

Activatable near-infrared fluorescent (NIRF) probes have been used for ex vivo and in vivo detection of intestinal tumors in animal models. We hypothesized that NIRF probes activatable by cathepsins or MMPs will detect and quantify dextran sulphate sodium (DSS) induced acute colonic inflammation in wild type (WT) mice or chronic colitis in IL-10 null mice ex vivo or in vivo.
Solvolysis and the abnormal mechanism of chlorination of 2-nitrobenzenesulfenyl chlorides. VII (1968)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolvolysis and the abnormal mechanism of chlorination of 2-nitrobenzenesulfenyl chlorides. VIIEdwin N. Givens and Harold KwartCite this: J. Am. Chem. Soc. 1968, 90, 2, 386–394Publication Date (Print):January 1, 1968Publication History Published online1 May 2002Published inissue 1 January 1968https://doi.org/10.1021/ja01004a032RIGHTS & PERMISSIONSArticle Views72Altmetric-Citations9LEARN 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 InReddit PDF (826 KB) Get e-Alertsclose Get e-Alerts
Microfluidic Separation of Blood Cells Based on the Negative Dielectrophoresis Operated by Three Dimensional Microband Electrodes (2020)

A microfluidic device is presented for the continuous separation of red blood cells (RBCs) and white blood cells (WBCs) in a label-free manner based on negative dielectrophoresis (n-DEP). An alteration of the electric field, generated by pairs of slanted electrodes (separators) that is fabricated by covering parts of single slanted electrodes with an insulating layer is used to separate cells by their sizes. The repulsive force of n-DEP formed by slanted electrodes prepared on both the top and bottom substrates led to the deflection of the cell flow in lateral directions. The presence of gaps covered with an insulating layer for the electric field on the electrodes allows the passing of RBCs through gaps, while relatively large WBCs (cultured cultured human acute monocytic leukemia cell line (THP-1 cells)) flowed along the slanted separator without passing through the gaps and arrived at an edge in the channel. The passage efficiency for RBCs through the gaps and the arrival efficiency for THP-1 cells to the upper edge in the channel were estimated and found to be 91% and 93%, respectively.
INTEND AND EXECUTION OF SYMBOLIZE BINARY SIGNED DIGITS BY USING FP BUTTERFLY METHOD (2018)

On this paper now we have now right here within the processor FFT and FFT butterfly constitution, reading, writing and execution addresses. Rapid Fourier turn out to be (FFT) coprocessor having a noticeable have an impact on the efficiency of communication techniques, has been a sizzling topic of study for decades. FFT participate in over the complicated numbers in a row, sometimes referred to as butterfly items need to add and multiply. , FFT architectures relevant to floating component (FP) arithmetic items have come to be extra contemporary now not too lengthy ago, especially the butterfly. FP is brushing aside issues compute-intensive duties from the ultimate rationale processor offloads. Nevertheless, FP butterfly, the primary hindrance is gradual as when put next with the constant point counter. To mitigate the slowdown in immoderate-% FP shows incentive to the development of the butterfly constitution. An elevate-constrained BSD adder is proposed and used within the three-operand adder and the parallel BSD multiplier so as to enhance the pace of the FDPA unit. Additionally, modified booth encoding is used to velocity up the BSD multiplier. The synthesis outcome affirms that the proposed FP butterfly constitution has more velocity than prior counterparts.