gebhart/patrepeval huggingface dataset:
On the influence of the gas velocity on dissociation degree and gas temperature in a flowing microwave hydrogen discharge (1998)

We report on the influence of the gas velocity on the discharge equilibrium in a low-pressure (1 Torr) microwave driven hydrogen plasma. We show that the gas velocity has a great influence on the dissociation degree, the key parameter being the residence time of the molecules in the plasma with respect to their effective dissociation time. The power balance (plasma length, electric field…) is substantially modified by the variations of the dissociation degree induced by the change in gas velocity. On the contrary, the gas temperature, determined by Doppler broadening of H atom Balmer lines, is not directly dependent on the gas velocity. Simple calculations confirm that the gas temperature is determined by local parameters and that heat is not axially transported. Surprisingly, dissociation of the H2 molecules does not seem to play any significant role for the heating of the gas.
Oxidative stress contributes to methotrexate-induced small intestinal toxicity in rats (2004)

These results suggest that oxidative stress plays an important role in the MTX-induced small intestinal damage, especially neutrophil infiltration. Thus, the modulation of oxidative stress would be useful in reducing intestinal damage in MTX treatment.
Analysis of the membrane potential of rat‐ and mouse‐liver mitochondria by flow cytometry and possible applications (1990)

Washed and purified rat- or mouse-liver mitochondria exhibiting high membrane integrity and metabolic activity were studied by flow cytometry. The electrophoretic accumulation/redistribution of cationic lipophilic probes, rhodamine 123, safranine O and a cyanine derivative, 3,3'-dihexyloxadicarbocyanine iodide, during the energization process was studied and was consistent with the generation of a negative internal membrane potential. An exception to this was nonylacridine orange which spontaneously bound to the mitochondrial membrane by hydrophobic interactions via its hydrocarbon chain. Energized purified mitochondria stained with potentiometric dyes exhibited both higher fluorescence and population homogeneity than the non-energized or deenergized (nigericin plus valinomycin) mitochondria. By contrast, under non-energized or deenergized conditions, the mitochondrial population exhibited fluorescence intensity heterogeneity related to the residual membrane potential; two subpopulations were evident, one of low fluorescence which may be related to the autofluorescence of the mitochondria (plus non-specific dye binding) and a second population which exhibited high fluorescence. Flow cytometry of the unpurified, simply washed, rat-liver mitochondria stained with rhodamine 123, a classically used dye, provided evidence of their heterogeneity in terms of light-scattering properties and membrane-potential-related fluorescence. One third of the washed mitochondria were found to be non-functional by such assays. The fluorescence of purified rat-liver mitochondria due to the membrane potential built up by endogenous substrates indicates heterogeneity of the mitochondrial population with respect to levels of endogenous substrates. The low-angle light scattering increases upon energization and provides some original information about the shape and modification of the inner mitochondrial conformation accompanying the energization. The heterogeneity of the rat liver mitochondrial population, from a structural, metabolic (existence of endogenous substrates) and functional (active and non-active mitochondrial population dispersion) point of view could thus be demonstrated by flow-cytometry analysis. Two animal models were examined with regard to the alteration of the mitochondrial membrane potential under the effects of drugs (rat-liver mitochondria), and the effects of ammonium toxicity (mouse-liver mitochondria). These results are promising and open new perspectives in the study of mitochondriopathies.
Analysis of temporal variations in average frequency and amplitude of COCORP deep seismic reflection data (1990)

PreviousNext No AccessSEG Technical Program Expanded Abstracts 1990Analysis of temporal variations in average frequency and amplitude of COCORP deep seismic reflection dataAuthors: Arthur E. BarnesArthur E. BarnesCornell Universityhttps://doi.org/10.1190/1.1890055 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Permalink: https://doi.org/10.1190/1.1890055FiguresReferencesRelatedDetailsCited BySeismic Attributes Application for the Distributed Acoustic Sensing Data for the Marcellus Shale: New Insights to Cross-Stage Flow Communication23 January 2018Mantle reflections beneath the Montana Great Plains on Consortium for Continental Reflection Profiling Seismic Reflection Data20 September 2012 | Journal of Geophysical Research: Solid Earth, Vol. 96, No. B3 SEG Technical Program Expanded Abstracts 1990ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 1990 Pages: 1779 publication data© 1990 Copyright © 1990 Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished: 10 Feb 2005 CITATION INFORMATION Arthur E. Barnes, (1990), "Analysis of temporal variations in average frequency and amplitude of COCORP deep seismic reflection data," SEG Technical Program Expanded Abstracts : 1553-1556. https://doi.org/10.1190/1.1890055 Plain-Language Summary PDF DownloadLoading ...
Fast 3D Mesh Compression Using Shared Vertex Analysis (2010)

A trend in 3D mesh compression is codec design with low computational complexity which preserves the input vertex and face order. However, this added information increases the complexity. We present a fast 3D mesh compression method that compresses the redundant shared vertex information between neighboring faces using simple first-order differential coding followed by fast entropy coding with a fixed length prefix. Our algorithm is feasible for low complexity designs and maintains the order, which is now part of the MPEG-4 scalable complexity 3D mesh compression standard. The proposed algorithm is 30 times faster than MPEG-4 3D mesh coding extension.
A System for Specifying and Coordinating the Execution of Reliable Distributed Applications (1997)

An increasing number of distributed applications are being constructed by composing them out of existing applications. The resulting applications can be very complex in structure, containing many temporal and dataflow dependencies between their constituent applications. An additional complication is that the execution of such an application may take a long time to complete, and may contain long periods of inactivity, often due to the constituent applications requiring user interactions. In a distributed environment, it is inevitable that long running applications will require support for fault-tolerance and dynamic reconfiguration: machines may fail, services may be moved or withdrawn and application requirements may change. In such an environment it is essential that the structure of applications can be modified to reflect these changes. This paper describes the design and implementation of a coordination language and the supporting execution environment for expressing the run-time co...
Analgesic Properties of Umbellatine from Psychotria umbellata (2002)

Interesting analgesic activity has been previously identified in alkaloids isolated from the genus Psychotria (Rubiaceae). We here report the analgesic activity of umbellatine, a new glycoside indole monoterpene alkaloid isolated from Psychotria umbellata. Umbellatine produced a dose-dependent (100-300 mg/kg) analgesic effect, partially reversed by naloxone, in the tail-flick and hot-plate models. These results suggest an analgesic effect at least in part associated with the activation of opioid receptors. In the formalin- and capsaicininduced pain models, umbellatine (100-300 mg/kg) elicited significant and dose-related antinociception. Umbellatine acts synergistically when co-administered with the NMDA antagonist MK-801. These results indicate the involvement of NMDA receptors in the umbellatine mechanism of action. Such a combined mode of action can be of relevance for developing analgesics useful in neurophatic pain.
Treating inflammatory bowel disease by adsorptive leucocytapheresis: A desire to treat without drugs (2014)

Ulcerative colitis and Crohn's disease are the major phenotypes of the idiopathic inflammatory bowel disease (IBD), which afflicts millions of individuals throughout the world with debilitating symptoms, impairing function and quality of life. Current medications are aimed at reducing the symptoms or suppressing exacerbations. However, patients require life-long medications, and this can lead to drug dependency, loss of response together with adverse side effects. Indeed, drug side effects become additional morbidity factor in many patients on long-term medications. Nonetheless, the efficacy of anti-tumour necrosis factors (TNF)-α biologics has validated the role of inflammatory cytokines notably TNF-α in the exacerbation of IBD. However, inflammatory cytokines are released by patients' own cellular elements including myeloid lineage leucocytes, which in patients with IBD are elevated with activation behaviour and prolonged survival. Accordingly, these leucocytes appear logical targets of therapy and can be depleted by adsorptive granulocyte/monocyte apheresis (GMA) with an Adacolumn. Based on this background, recently GMA has been applied to treat patients with IBD in Japan and in the European Union countries. Efficacy rates have been impressive as well as disappointing. In fact the clinical response to GMA seems to define the patients' disease course, response to medications, duration of active disease, and severity at entry. The best responders have been first episode cases (up to 100%) followed by steroid naïve and patients with a short duration of active disease prior to GMA. Patients with deep ulcers together with extensive loss of the mucosal tissue and cases with a long duration of IBD refractory to existing medications are not likely to benefit from GMA. It is clinically interesting that patients who respond to GMA have a good long-term disease course by avoiding drugs including corticosteroids in the early stage of their IBD. Additionally, GMA is very much favoured by patients for its good safety profile. GMA in 21st century reminds us of phlebotomy as a major medical practice at the time of Hippocrates. However, in patients with IBD, there is a scope for removing from the body the sources of pro-inflammatory cytokines and achieve disease remission. The bottom line is that by introducing GMA at an early stage following the onset of IBD or before patients develop extensive mucosal damage and become refractory to medications, many patients should respond to GMA and avoid pharmacologics. This should fulfill the desire to treat without drugs.
Room-Temperature Ni(0)-Catalyzed Cross-Coupling Reactions of Aryl Arenesulfonates with Arylboronic Acids (2004)

Room-temperature Ni(0)-catalyzed cross-coupling reactions of aryl arenesulfonates with arylboronic acids are described. The Ni(0) catalyst, derived from Ni(COD)2 and PCy3, proved to be a general one for the Suzuki-Miyaura cross-coupling of a variety of aryl arenesulfonates. The mild reaction condition, the readily availability of the catalyst, and excellent coupling yields make aryl arenesulfonates potentially useful substrates in organic synthesis.
Elastic Fully Three‐dimensional Microstructure Scaffolds for Cell Force Measurements (2010)

Elastic 3D scaffolds (see figure) are fabricated into a biocompatible photoresist using direct laser writing. These scaffolds can be rhythmically deformed by single beating cardiomyocytes and calibration with atomic force microscopy indicates that cellular forces down to 10–20 nN are detectable with the setup. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
Image morphological processing (2003)

Mathematical Morphology with applications in image processing and analysis has been becoming increasingly important in today's technology. Mathematical Morphological operations, which are based on set theory, can extract object features by suitably shaped structuring elements. Mathematical Morphological filters are combinations of morphological operations that transform an image into a quantitative description of its geometrical structure based on structuring elements. Important applications of morphological operations are shape description, shape recognition, nonlinear filtering, industrial parts inspection, and medical image processing. 
In this dissertation, basic morphological operations, properties and fuzzy morphology are reviewed. Existing techniques for solving corner and edge detection are presented. A new approach to solve corner detection using regulated mathematical morphology is presented and is shown that it is more efficient in binary images than the existing mathematical morphology based asymmetric closing for corner detection. 
A new class of morphological operations called sweep mathematical morphological operations is developed. The theoretical framework for representation, computation and analysis of sweep morphology is presented. The basic sweep morphological operations, sweep dilation and sweep erosion, are defined and their properties are studied. It is shown that considering only the boundaries and performing operations on the boundaries can substantially reduce the computation. Various applications of this new class of morphological operations are discussed, including the blending of swept surfaces with deformations, image enhancement, edge linking and shortest path planning for rotating objects. 
Sweep mathematical morphology is an efficient tool for geometric modeling and representation. The sweep dilation/erosion provides a natural representation of sweep motion in the manufacturing processes. A set of grammatical rules that govern the generation of objects belonging to the same group are defined. Earley's parser serves in the screening process to determine whether a pattern is a part of the language. Finally, summary and future research of this dissertation are provided.
An X-band solid-state FM-CW weather radar (1990)

FM-CW radar has grown to a mature state owing to new breakthroughs in microwave and computer hardware. Applications of FM-CW radar so far have been mainly in the field of tropospheric research, meteorology and ship navigation. The paper describes a radar to be used for rain-rate determination and rain-cell contouring. The central themes are system fundamentals, system design and construction, and real-time processing of the radar. The new radar is purely solid state, with a CW power of 1 watt. Owing to the use of X-band frequencies, the radar waves need to be corrected for spatial expansion and for rain-induced attenuation along the radar path, using real-time processing. Results demonstrate the potential capability for suppressing coherent ground clutter as well as for detecting rain cells.
Interaction of the Movements of the Two Eyecups in the Crab <i>Carcinus</i> (1969)

ABSTRACT The movements of the two eyecups of the crab, Carcinus, have been recorded simultaneously during optokinetic responses. Experiments in which the eyes view different visual stimuli reveal that, at the start of a response, the eyecups have a considerable degree of independence and can even move in opposite directions. As the response progresses, interaction between the eyes increases, until the eyecups move at similar velocities in the direction of the slower of the two visual inputs, or are stationary. Similar interactions between the eyes were observed during memory responses and during the responses to sinusoidal oscillation of the two sets of stripes. Each eye has its own system for converting perceived motion into eyecup movement. These two systems are linked on the afferent rather than the efferent side of the brain. The fast phase of optokinetic nystagmus is governed by the eye whose fast-phase movement occurs away from the midline, and the fast phases of this eyecup lead the other by 30-80 msec. Also, fast phases only occur at their normal frequency when the governing eye can see the stripes.
MicroRNA-21 Regulates the Proliferation and Invasion in Esophageal Squamous Cell Carcinoma (2009)

MicroRNA-21 targets PDCD4 at the posttranscriptional level and regulates cell proliferation and invasion in esophageal squamous cell carcinoma. It may serve as a novel therapeutic target in esophageal squamous cell carcinoma.
Mechanism of Brake Fade in Organic Brake Linings (1967)

<div class="htmlview paragraph">The object of this study was to determine the major mechanism which produces brake fade in organic brake lining materials. The major mechanism of fade was developed and illustrated by a series of experiments. This mechanism is not limited to phenolic base materials, but includes a variety of materials with particular properties in common. Methods of reducing fade based on this mechanism are examined.</div>
Cell-Specific Proteins Synthesized by<i>Salmonella typhimurium</i> (1998)

Studies of the proteins synthesized by Salmonella typhimurium during growth within tissue culture cells have previously focused on a single cell type. In the present study we examine the different protein patterns exhibited by S. typhimurium during growth within three different cell types relevant to those it would encounter throughout the course of a natural infection, including intestinal epithelial cells (Intestine-407), macrophages (J774.A, rat bone marrow-derived macrophages, and mouse bone marrow-derived macrophages), and liver cells (NMuLi). Side-by-side comparisons reveal that S. typhimurium responds to these different cellular environments with specific patterns of protein synthesis unique to each cell type. The numbers of proteins detected in each cell line are as follows: 142 proteins in Intestine-407, of which 58 appear to be unique to growth within this cell line; 413 proteins in J774.A, of which 157 appear to be unique; 260 proteins in rat bone marrow-derived macrophages, of which 40 appear to be unique; 336 proteins in mouse bone marrow-derived macrophages, of which 113 appear to be unique; and 183 proteins in NMuLi, of which 91 appear to be unique.
400Gb/s (4 × 100Gb/s) orthogonal PDM-RZ-QPSK DWDM Signal Transmission over 1040km SMF-28 (2009)

We have generated 4 x 100-Gb/s orthogonal WDM optical signal by employing polarization-division-multiplexed (PDM) return-to-zero (RZ) QPSK modulation format and tight optical filtering technique. The required optical signal-to-noise ratio (OSNR) at bit error ratio (BER) of 2 x 10(-3) for the 400 Gb/s orthogonal DWDM signal is measured to be approximately 22.8 dB/0.1 nm. After transmission over 1040-km standard single mode fiber (EDFA-only amplification, 80-km amplifier span and fully receiver-side electrical dispersion compensation), the measured BER for all the four orthogonal subchannels are smaller than 2 x 10(-3).
Expression of messenger RNA for kit-ligand in human placenta: localization by in situ hybridization and identification of alternatively spliced variants. (1992)

Kit-ligand is a novel polypeptide growth factor which binds and activates the c-kit protooncogene, a receptor tyrosine kinase. We used the technique of reverse transcription-polymerase chain reaction to demonstrate the expression of this growth factor in human placenta. In situ hybridization showed that kit-ligand mRNA is expressed in cytotrophoblast and syncytiotrophoblast cells in the placenta, and in fetally derived extravillous trophoblast cells which have invaded the maternal endometrium. Five species of mRNA encoding variants of kit-ligand were identified by nested reverse transcription-polymerase chain reaction. Cloning and sequencing indicate that these variants arise by alternative splicing of the kit-ligand transcript. One of these species, KL486, uses a novel splice site in exon 8. There is a different pattern of expression of the variants in amnion, chorion, trophoblast, and placenta, indicating tissue-specific control of splicing.
Dose-Ranging Study in Younger Adult and Elderly Patients of ORG 9487, a New, Rapid-Onset, Short-Duration Muscle Relaxant (1997)

The purpose of this multicenter, randomized, assessor-blind placebo-controlled study was to determine which of five doses of the new, rapid-onset neuromuscular relaxant, ORG 9487, provided both good to excellent tracheal intubating conditions 60 s after administration and a clinical duration of action <20 min in 120 younger (aged 18-64 yr) and 61 elderly (aged 65-85 yr) adult patients. Anesthesia was induced with fentanyl (2-5 micro g/kg) and thiopental (3-6 mg/kg) and maintained with N2 O/O2 and a propofol infusion (50-300 micro g [centered dot] kg-1 [centered dot] min-1). Neuromuscular train-of-four (TOF) monitoring by electromyography (Datex Relaxograph) commenced immediately after anesthetic induction and was followed, within 30 s, by one of five doses of ORG 9487 (0.5, 1.0, 1.5, 2.0, 2.5 mg/kg) or a placebo. Tracheal intubation was attempted at 60 s and again, in the case of failure, at 90 s. Conditions were assessed with a 4-point scale. Maximum block, clinical duration (time to 25% T1 recovery), and recovery (TOF >or=to 0.7) were measured. Dose-dependent changes were observed in tracheal intubating conditions and neuromuscular block. Good to excellent intubating conditions at 60 s were present in most younger adult (52 of 60) and elderly (26 of 31) patients administered doses >or=to1.5 mg/kg. Mean clinical durations <20 min were observed in adult patients at doses up to 2.0 mg/kg and in geriatric patients up to 1.5 mg/kg. Thus, doses of 1.5-2.0 mg/kg ORG 9487 enabled both rapid tracheal intubation and a short clinical duration of action in adult and elderly patients. (Anesth Analg 1997;84:1011-8)
Effects of unsuccessful transmissions of measurements on uncertainty in power flow calculations (2012)

Using a linear DC power flow model, the power flow calculation can be determined by the bus susceptance matrix and the voltage angles. In this paper, we consider a power system where the voltage angle measurement at each bus is transmitted to a control center via a wireless communication channel. In order to model unsuccessful transmissions, we derive a two-component Gaussian mixture model to describe the probability density function of our knowledge of every voltage measurement at the control center. We investigate how the unsuccessful transmissions of each link affect the distribution of the quantities calculated by the power flow calculation at the control center.
Advances in Econometrics (1987)

The Econometric Society holds a World Congress every five years. The programme of these congresses has traditionally included a series of invited symposia, where speakers survey important recent advances in economic theory and econometrics. These two volumes, with their focus on econometrics, and their companion volume on economic theory, contain papers delivered at the Fifth World Congress held in 1985. Designed to make material accessible to a general audience of economists, these papers should be helpful to anyone with training in economics who wishes to follow new ideas and tendencies in the subject. Advances in Econometrics: Fifth World Congress, Volumes I & II, edited by Professor Truman F. Bewley of Yale University, include a wide variety of topics, comprising empirical and policy oriented subjects as well as theoretical and methodological ones.