gebhart/patrepeval huggingface dataset:
Hypoxia potentiates exercise-induced sympathetic neural activation in humans (1991)

Our purpose was to test the hypothesis that hypoxia potentiates exercise-induced sympathetic neural activation in humans. In 15 young (20-30 yr) healthy subjects, lower leg muscle sympathetic nerve activity (MSNA, peroneal nerve; microneurography), venous plasma norepinephrine (PNE) concentrations, heart rate, and arterial blood pressure were measured at rest and in response to rhythmic handgrip exercise performed during normoxia or isocapnic hypoxia (inspired O2 concn of 10%). Study I (n = 7): Brief (3-4 min) hypoxia at rest did not alter MSNA, PNE, or arterial pressure but did induce tachycardia [17 +/- 3 (SE) beats/min; P less than 0.05]. During exercise at 50% of maximum, the increases in MSNA (346 +/- 81 vs. 207 +/- 14% of control), PNE (175 +/- 25 vs. 120 +/- 11% of control), and heart rate (36 +/- 2 vs. 20 +/- 2 beats/min) were greater during hypoxia than during normoxia (P less than 0.05), whereas the arterial pressure response was not different (26 +/- 4 vs. 25 +/- 4 mmHg). The increase in MSNA during hypoxic exercise also was greater than the simple sum of the separate responses to hypoxia and normoxic exercise (P less than 0.05). Study II (n = 8): In contrast to study I, during 2 min of exercise (30% max) performed under conditions of circulatory arrest and 2 min of postexercise circulatory arrest (local ischemia), the MSNA and PNE responses were similar during systemic hypoxia and normoxia. Arm ischemia without exercise had no influence on any variable during hypoxia or normoxia.(ABSTRACT TRUNCATED AT 250 WORDS)
Transmitting Audio Content as Sound Objects (2002)

As audio and music applications tend to a higher level of abstraction and to fill in the gap between the signal processing world and the end-user we are more and more interested on processing content and not (only) signal. This change in point of view leads to the redefinition of several â€œclassicalâ€ concepts, and a new conceptual framework needs to be set to give support to these new trends. In [2], a model for the transmission of audio content was introduced. The model is now extended to include the idea of Sound Objects. With these thoughts in mind, examples of design decisions that have led to the implementation of the CLAM framework are also given.
MACA-P: a MAC for concurrent transmissions in multi-hop wireless networks (2004)

This paper presents the initial design and performance study of MACA-P, a RTS/CTS based MAC protocol that enables simultaneous transmissions in multihop ad-hoc wireless networks. Providing such low-cost multihop and high performance wireless access networks is an important enabler of pervasive computing. MACA-P is a set of enhancements to the 802.11 DCF that allows parallel transmissions in many situations when two neighboring nodes are either both receivers or both transmitters, but a receiver and a transmitter are not neighbors. Like 802.11, MACA-P contains a contention-based reservation phase prior to data transmission. However, the data transmission is delayed by a control phase interval, which allows multiple sender-receiver pairs to synchronize their data transfers, thereby avoiding collisions and improving system throughput.
Introduction of Modern Instrumentation in the First Two Years of Chemistry: The Iowa Chemistry Curriculum Network (IACCN) (1995)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIntroduction of Modern Instrumentation in the First Two Years of Chemistry: The Iowa Chemistry Curriculum Network (IACCN)Thomas J. Greenbowe Cite this: J. Chem. Educ. 1995, 72, 6, 534Publication Date (Print):June 1, 1995Publication History Received3 August 2009Published online1 June 1995Published inissue 1 June 1995https://doi.org/10.1021/ed072p534.3RIGHTS & PERMISSIONSArticle Views37Altmetric-Citations-LEARN 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 (1 MB) Get e-Alerts Get e-Alerts
On-Line Diagnostic For Laser Surfacing Techniques (1988)

Laser material processing is a technolgy with well controllable parameters. However, in order to control the parameters it is necessary to measure them. The basic parameters to be measured are usually the input power, the discharge current, the output power. But for a reliable operation the laser beam intensity distribution in the unfocussed part should be observed and the intensity in the focal area should be optimized. Additionally, the interaction between the laser and the material is depending on some material properties. So, the interaction can change, although all laser beam parameters are stable. In order to avoid this, a monitoring of the interaction is necessary. Examples for the before mentioned controls and diagnostics are given in the report.
Synthesis, Structure and Electrical Resistivity of Carbon Nanotubes Synthesized over Group VIII Metallocenes (2020)

The paper reports the synthesis of carbon nanotubes from ethanol over group VIII (Fe, Co, Ni) catalysts derived from corresponding metallocenes. Several unexpected cooperative effects are reported, which are never observed in the case of individual metallocenes such as the commonly used ferrocene catalyst Fe(C<sub>5</sub>H<sub>5</sub>)<sub>2</sub>. The formation of very long (up to several µm) straight monocrystal metal kernels inside the carbon nanotubes was the most interesting effect. The use of trimetal catalysts (Fe<sub>1-x-y</sub>Co<sub>x</sub>Ni<sub>y</sub>)(C<sub>5</sub>H<sub>5</sub>)<sub>2</sub> resulted in the sharp increase in the yield of carbon nanotubes. The electrical conductivity of the produced nanotubes is determined by the nature of the catalyst. The variation of individual metals in the Ni-Co-Fe leads to a drop of the electrical resistivity of nanotube samples by the order of magnitude, i.e., from 1.0 × 10<sup>-3</sup> to 1.1 × 10<sup>-5</sup> Ω∙m. A controlled change in the electrophysical properties of the nanotubes can make it possible to expand their use as fillers in composites, photothermal and tunable magnetic nanomaterials with pre-designed electrical conductivity and other electromagnetic properties.
Studies on Pectin isolated from Mikan (<i>Citrus Unshiu</i> MARCOVITCH) Peel. III (1961)

Pectin-II, isolated from the fruit rind of Citrus unshiu MARCOVITCH, was hydrolyzed with an acid, oligogalacturonic acid thereby formed was oxidized with sodium periodate, and a hydrazone of its oxidation product was obtained by reaction with phenylhydrazine or isonicotinoylhydrazine. Reduction of this oxidation product with sodium borohydride and hydrolysis of the reduction product with hydrochloric acid afforded glycolic aldehyde, L-glyceric acid, and D-threonic acid. A structure was proposed for the oligogalacturonic acid from these derivatives and decomposition product.
Quantitative Assessment of the Accuracy of Constitutive Laws for Plasticity with an Emphasis on Cyclic Deformation (1993)

Abstract : The paper addresses the Plastic behavior of the aluminum alloy 5086 and 5454 in the H-32 temper under cyclic load. It reports the experimental results and analyzes them with the aim to design constitutive laws which could be used in the computational analysis. The reliability of the constitutive laws is analyzed.
Chemopreventive effect of curcumin, a naturally occurring anti-inflammatory agent, during the promotion/progression stages of colon cancer. (1999)

Curcumin, derived from the rhizome of Curcuma longa L. and having both antioxidant and anti-inflammatory properties, inhibits chemically induced carcinogenesis in the skin, forestomach, and colon when it is administered during initiation and/or postinitiation stages. This study was designed to investigate the chemopreventive action of curcumin when it is administered (late in the premalignant stage) during the promotion/progression stage of colon carcinogenesis in male F344 rats. We also studied the modulating effect of this agent on apoptosis in the tumors. At 5 weeks of age, groups of male F344 rats were fed a control diet containing no curcumin and an experimental AIN-76A diet with 0.2% synthetically derived curcumin (purity, 99.9%). At 7 and 8 weeks of age, rats intended for carcinogen treatment were given s.c. injections of azoxymethane (AOM) at a dose rate of 15 mg/kg body weight per week. Animals destined for the promotion/progression study received the AIN-76A control diet for 14 weeks after the second AOM treatment and were then switched to diets containing 0.2 and 0.6% curcumin. Premalignant lesions in the colon would have developed by week 14 following AOM treatment. They continued to receive their respective diets until 52 weeks after carcinogen treatment and were then sacrificed. The results confirmed our earlier study in that administration of 0.2% curcumin during both the initiation and postinitiation periods significantly inhibited colon tumorigenesis. In addition, administration of 0.2% and of 0.6% of the synthetic curcumin in the diet during the promotion/progression stage significantly suppressed the incidence and multiplicity of noninvasive adenocarcinomas and also strongly inhibited the multiplicity of invasive adenocarcinomas of the colon. The inhibition of adenocarcinomas of the colon was, in fact, dose dependent. Administration of curcumin to the rats during the initiation and postinitiation stages and throughout the promotion/progression stage increased apoptosis in the colon tumors as compared to colon tumors in the groups receiving AOM and the control diet. Thus, chemopreventive activity of curcumin is observed when it is administered prior to, during, and after carcinogen treatment as well as when it is given only during the promotion/progression phase (starting late in premalignant stage) of colon carcinogenesis.
Change in the polarization of partially coherent electromagnetic beams propagating through the turbulent atmosphere (2005)

We study the changes in the degree of polarization of an electromagnetic Gaussian Schell-model beam, as the beam propagates through the turbulent atmosphere. We demonstrate that, within the framework of the Tatarskii model of the turbulent atmosphere, the degree of polarization of the beam changes appreciably at relatively short propagation distances in the atmosphere. In the long-propagation distance limit, however, we find that the degree of polarization of the beam tends to the value that it has in the source plane.
User-Relative Names for Globally Connected Personal Devices (2006)

Nontechnical users who own increasingly ubiquitous network-enabled personal devices such as laptops, digital cameras, and smart phones need a simple, intuitive, and secure way to share information and services between their devices. User Information Architecture, or UIA, is a novel naming and peer-to-peer connectivity architecture addressing this need. Users assign UIA names by "introducing" devices to each other on a common local-area network, but these names remain securely bound to their target as devices migrate. Multiple devices owned by the same user, once introduced, automatically merge their namespaces to form a distributed "personal cluster" that the owner can access or modify from any of his devices. Instead of requiring users to allocate globally unique names from a central authority, UIA enables users to assign their own "user-relative" names both to their own devices and to other users. With UIA, for example, Alice can always access her iPod from any of her own personal devices at any location via the name "ipod", and her friend Bob can access her iPod via a relative name like "ipod.Alice".
The Donation Cycle:A Framework for the Measurement and Analysis of Blood Donor Return Behaviour (1993)

The donation cycle represents a new framework for the measurement of blood donor return behaviour. Because it is based on the interval between successive donation attempts, it is more efficient than previously reported methods and the resulting data can be analysed using the statistical techniques for interval data. To illustrate the merits of this quantitative approach to the study of blood donor behaviour, the donation cycle framework is used to analyse the interval between the first and second donation attempts in a random sample (n = 5,183) of type 0, whole blood donors from the Gulf Coast Regional Blood Center. Simple statistical tools such as the log-rank test are employed to describe and to evaluate relative differences in the return behaviour of Rh-negative and Rh-positive donors. The analysis indicates that Rh-negative donors are significantly (p < 0.001) more likely than Rh-positive donors to attempt to donate on a second occasion. Kaplan-Meier estimates of the survival function of these first-time donors reveal marked elevations in the rate of return exactly 52 weeks after the initial donation. The donation cycle paradigm provides transfusion researchers with quantitative tools which are essential for designing statistically efficient, prospective intervention studies. By using the knowledge which such studies could provide, blood banks might be better able to manage donor return behaviour and thereby the safety of the blood supply.
Wandbeweglichkeitsmessungen an Yttrium‐Eisen‐Granaten mit Terbiumzusätzen (1969)

Abstract Es wurde die Blochwandbeweglichkeit an Ringkernen aus YFe‐Granat mit rechteckförmiger Hystereseschleife gemessen und der Einfluß von Tb‐Zusätzen untersucht. Dabei ergab sich für VFe‐Granat ein Wert von einigen Tausend cm/sOe, der von der gleichen Größenordnung wie bei anderen Rechteckferriten ist. Tb‐Zusätze bewirken eine starke Abnahme der Wandbeweglichkeit.
Acoustical Society of America R. Bruce Lindsay Award (2008)

The R. Bruce Lindsay Award (formerly the Biennial Award) is presented in the Spring to a member of the Society who is under 35 years of age on 1 January of the year of the Award and who, during a period of two or more years immediately preceding the award, has been active in the affairs of the Society and has contributed substantially, through published papers, to the advancement of theoretical or applied acoustics, or both. The award was presented biennially until 1986. It is now an annual award.
COMPARISON OF SYMPTOMS IN NEWLY-DIAGNOSED VS CHRONIC-REFRACTORY PATIENTS WITH CHRONIC PROSTATITIS/CHRONIC PELVIC PAIN SYNDROME (CP/CPPS) (2009)

You have accessJournal of Urology1 Apr 2009COMPARISON OF SYMPTOMS IN NEWLY-DIAGNOSED VS CHRONIC-REFRACTORY PATIENTS WITH CHRONIC PROSTATITIS/CHRONIC PELVIC PAIN SYNDROME (CP/CPPS) J Curtis Nickel, Richard B Alexander, Rodney U Anderson, Richard Berger, William L Duncan, John N Krieger, Mark S Litwin, Mary McNaughton-Collins, Michel A Pontari, Anthony J Schaeffer, Daniel A Shoskes, J. Richard Landis, John W Kusek, Leroy M Nyberg, and Shannon Chuai J Curtis NickelJ Curtis Nickel More articles by this author , Richard B AlexanderRichard B Alexander More articles by this author , Rodney U AndersonRodney U Anderson More articles by this author , Richard BergerRichard Berger More articles by this author , William L DuncanWilliam L Duncan More articles by this author , John N KriegerJohn N Krieger More articles by this author , Mark S LitwinMark S Litwin More articles by this author , Mary McNaughton-CollinsMary McNaughton-Collins More articles by this author , Michel A PontariMichel A Pontari More articles by this author , Anthony J SchaefferAnthony J Schaeffer More articles by this author , Daniel A ShoskesDaniel A Shoskes More articles by this author , J. Richard LandisJ. Richard Landis More articles by this author , John W KusekJohn W Kusek More articles by this author , Leroy M NybergLeroy M Nyberg More articles by this author , and Shannon ChuaiShannon Chuai More articles by this author View All Author Informationhttps://doi.org/10.1016/S0022-5347(09)60349-9AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail "COMPARISON OF SYMPTOMS IN NEWLY-DIAGNOSED VS CHRONIC-REFRACTORY PATIENTS WITH CHRONIC PROSTATITIS/CHRONIC PELVIC PAIN SYNDROME (CP/CPPS)." The Journal of Urology, 181(4S), p. 122 © 2009 by American Urological AssociationFiguresReferencesRelatedDetails Volume 181Issue 4SApril 2009Page: 122 Advertisement Copyright & Permissions© 2009 by American Urological AssociationMetricsAuthor Information J Curtis Nickel More articles by this author Richard B Alexander More articles by this author Rodney U Anderson More articles by this author Richard Berger More articles by this author William L Duncan More articles by this author John N Krieger More articles by this author Mark S Litwin More articles by this author Mary McNaughton-Collins More articles by this author Michel A Pontari More articles by this author Anthony J Schaeffer More articles by this author Daniel A Shoskes More articles by this author J. Richard Landis More articles by this author John W Kusek More articles by this author Leroy M Nyberg More articles by this author Shannon Chuai More articles by this author Expand All Advertisement PDF downloadLoading ...
Comparative study of methods for producing gum arabic powder and the impact of DIC treatment (instant controlled pressure drop) on the properties of the product (2018)

In this study, gum arabic powder was produced according to four methods by inserting a restructuring stage by DIC treatment (instant controlled pressure drop) in the classic process of grinding and spray drying. Properties of the final product were compared, and the results show that DIC treatment enables to control and improve the properties of the powder. The DIC treatment can cause a controlled increase in the tapped bulk density, filling rate, compressibility, porosity; and a reduction in interstitial air volume and the loose bulk density. It also facilitated the subsequent grinding and intensified the drying kinetics. The impacts of pressure and DIC treatment time were examined. Pressure was the strongest factor influencing the properties of the gum arabic powder. Selecting an optimal pressure and treatment time plays a decisive role in controlling the properties of powders.
A story takes shape - a study of how geometric shape on book covers indicate popular literary genre (2014)

Denna studie syftar till att undersoka om det finns samband mellan geometriska former och popularlitterara genrer och hur dessa i sadana fall motiveras. De geometriska former som inkluderas i studi ...
Ethambutol Neuropathy: Clinical and Electroneuromyographic Studies (1980)

Clinical features including changes in the peripheral nerve conduction were analzyed in 10 cases with ethambutol neuropathy. There were abnormalities in the visual field in seven and optic atrophy in five of 10 cases. Seven of 10 cases complained of numbness in the lower limbs. The age of onset and dose of ethambutol the patients continue to take after the occurrence of visual impairment were found to be important in determining the severity of neurological symptoms. A functional disturbance was more conspicuous in ethambutol neuropathy, particularly in the sensory system than in the motor system so far as the peripheral nerve conduction was serially examined. Some cases still had serious optic disturbances even about seven years after the onset of the disease and the presence of irreversible lesions was suspected.
GACA (2015)

Many graphic applications rely on command-based arrangement tools to achieve precise layouts. Traditional tools are designed to operate on a single group of elements that are distributed consistently with the arrangement axis implied by a command. This often demands a process with repeated element selections and arrangement commands to achieve 2D layouts involving multiple rows and/or columns of well aligned and/or distributed elements. Our work aims to reduce the numbers of selection operation and command invocation, since such reductions are particularly beneficial to professional designers who design lots of layouts. Our key idea is that an issued arrangement command is in fact very informative, instructing how to automatically decompose a 2D layout into multiple 1D groups, each of which is compatible with the command. We present a parameter-free, command-driven grouping approach so that users can easily predict our grouping results. We also design a simple user interface with pushpins to enable explicit control of grouping and arrangement. Our user study confirms the intuitiveness of our technique and its performance improvement over traditional command-based arrangement tools.
Diode-pumped operating scheme for Ho:YAG laser (1992)

Diode-pumped operating scheme for Ho:YAG laserB.M.Antipenko, A.A.NikitichevAll-Union Research Center S.I.Vavilov State Optical Institute 199034 St.Petersburg, RussiaIn this paper we shall touch upon a problem of output power scale up of diode-pumped Ho-laser. Raising outputpower we are forced to use both a large volume of active medium and compulsory cooling. There is the expression
Transient Overvoltage on a Bipolar HVDC Overhead Line Caused by DC Line Faults (1970)

Digital programs are used to investigate the overvoltages induced in one pole of a bipolar HVDC overhead line, and caused by a line-ground fault on the other dc pole. Various digital tests are carried out, bearing in mind in particular the nature of dc line termination at the converter stations, which may include filter circuits and a surge capacitor. It is shown that the terminal that looks inductive to a wavefront coming from the dc line is undesirable because it would cause high overvoltages at the terminal of the unfaulted pole. It is also shown that in order to reduce the risk of developing a double-pole outage from a single-pole fault, it is desirable to do away with the surge capacitor, if a suitable dc lightning arrester can be designed. Tests are presented in stages to isolate the effects of fault resistance, grid control, and line resistance. Results also indicate the restraints to be put upon the dv/dt line fault detection in order to avoid operation of this protection in the unfaulted pole.