gebhart/patrepeval huggingface dataset:
A STUDY OF PERIODIC MEDIA WITH NON-ORTHOGONAL LATTICE STRUCTURE. (1964)

A Theory is developed for treating propagation of electromagnetic waves in a three dimensional periodic medium with non-orthogonal lattice structure. The generalized transmission line viewpoint is adopted, that is, each plane of obstacles is considered as a single discontinuity loading the free space or the supporting material at periodic intervals. Such a discontinuity can be described by the usual circuit type matrices; the properties of these are examined in detail. Another type of medium is also analyzed, in it a plane of obstacles is obtained from an adjacent plane by a translation and rotation. The eigenwaves in this medium are elliptically polarized waves. Some unusual features of the band structure are illustrated for a strip and a disk medium.
DaimlerChrysler, el rigor alemán: red logística postventa de Daimier-Chrysler (2005)

En el sector de la automocion, una diferencia competitiva clave se encuentra en lso servicios postventa. La cadena de suministro juega un papel fundamental en esta actividad. Asi lo ha entendido el grupo DaimierChrysler.
Pulse erosion plasma injector for discharge initiating in electric arc generator of plasma (1995)

Pulse plasma injector (plasmatron) with power supply system, intended for arcs burning initiation in powerful plasma generators, and also for independent application in physical experiments, connected with obtaining dense plasma, and some branches of industrial technology, is described. Injector construction, physical processes taking place in the pulse discharge chamber, injected plasmoid velocity dependence on the pressure, current value and the other parameters of discharge chamber are described and analyzed. Injector's operation capability (/spl ges/1000 pulses), working capability of electrodes (tungsten, brass, steel) and the other constructive materials are discussed. The following operation regime is presented: working currents diapason 5-7 kA; voltage 3-5 kV, pulse duration (1-2)x10/sup -2/ s. Powerful stationary arcs in helium at pressures up to 1.2 MPa and in nitrogen at pressures of 1.6 MPa are initiated using the injector.
Anniversary Paper: Fifty years of AAPM involvement in radiation dosimetry (2008)

This article reviews the involvement of the AAPM in various aspects of radiation dosimetry over its 50 year history, emphasizing the especially important role that external beam dosimetry played in the early formation of the organization. Topics covered include the AAPM's involvement with external beam and x-ray dosimetry protocols, brachytherapy dosimetry, primary standards laboratories, accredited dosimetry chains, and audits for machine calibrations through the Radiological Physics Center.
Avian G-protein-regulated phospholipase C (1991)

Conference Article| April 01 1991 Avian G-protein-regulated phospholipase C T. Kendall Harden; T. Kendall Harden 1Department of Pharmacology, University of North Carolina School of Medicine, Chapel Hill, NC 27599, U.S.A. Search for other works by this author on: This Site PubMed Google Scholar Andrew J. Morris; Andrew J. Morris 1Department of Pharmacology, University of North Carolina School of Medicine, Chapel Hill, NC 27599, U.S.A. Search for other works by this author on: This Site PubMed Google Scholar Gary L. Waldo; Gary L. Waldo 1Department of Pharmacology, University of North Carolina School of Medicine, Chapel Hill, NC 27599, U.S.A. Search for other works by this author on: This Site PubMed Google Scholar C. Peter Downes; C. Peter Downes 1Department of Pharmacology, University of North Carolina School of Medicine, Chapel Hill, NC 27599, U.S.A. Search for other works by this author on: This Site PubMed Google Scholar Jose L. Boyer Jose L. Boyer 1Department of Pharmacology, University of North Carolina School of Medicine, Chapel Hill, NC 27599, U.S.A. Search for other works by this author on: This Site PubMed Google Scholar Author and article information Publisher: Portland Press Ltd Received: December 17 1990 Online ISSN: 1470-8752 Print ISSN: 0300-5127 © 1991 Biochemical Society1991 Biochem Soc Trans (1991) 19 (2): 342–346. https://doi.org/10.1042/bst0190342 Article history Received: December 17 1990 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn Email Cite Icon Cite Get Permissions Citation T. Kendall Harden, Andrew J. Morris, Gary L. Waldo, C. Peter Downes, Jose L. Boyer; Avian G-protein-regulated phospholipase C. Biochem Soc Trans 1 April 1991; 19 (2): 342–346. doi: https://doi.org/10.1042/bst0190342 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsBiochemical Society Transactions Search Advanced Search Keywords: PLC, phospholipase C, EGF, epidermal growth factor, PtdIns(4,5)P2, phosphatidylinositol 4,5-bisphosphate, GTP[S], guanosine 5-[γ-thio]triphosphate, ADPβS, adenosine 5′-[β-thio]-diphosphate This content is only available as a PDF. © 1991 Biochemical Society1991 Article PDF first page preview Close Modal You do not currently have access to this content.
Retrograde Intrarenal Surgery as Second-Line Therapy Yields a Lower Success Rate (2006)

When RIRS is performed after failed SWL, it has a lower success rate and may be associated with a higher morbidity rate than if it is performed as first-line therapy. These results suggest that the success rate of RIRS may be influenced by the same negative factors that reduce SWL success. Therefore, if a patient fails SWL, careful consideration should be given to the best second-line therapy comparing RIRS with percutaneous stone removal.
Testosterone therapy decreases subcutaneous fat and adiponectin in aging men (2011)

Testosterone therapy decreased subcutaneous fat on the abdomen and lower extremities, but visceral fat was unchanged. Moreover, adiponectin levels were significantly decreased during testosterone therapy.
Cardiac instability amplified by use-dependent Na channel blockade (1992)

Drugs that exhibit use-dependent Na channel blockade, including antiarrhythmic agents, tricyclic antidepressants, opiate-like analgesics, and cocaine, are linked with an increased susceptibility to cardiac arrhythmias and sudden death. Computer simulations indicate that Na channel blockade retards recovery of excitability, thereby increasing the spatial dispersion of refractoriness, a precursor of many cardiac arrhythmias. In isolated rabbit left atria, stimuli timed to occur at increasing intervals following conditioning stimuli reveal an unstable interval (vulnerable period) during which single stimuli initiate trains of responses. The vulnerable period is extended by use-dependent Na channel blockade and provides a model for assaying proarrhythmic potential and probing cardiac instability.
A NEW TECHNIQUE FOR EARLY DETECTION OF PORTAL VEIN AND ARTERIAL THROMBOSES (1993)

The aim of this study was to ascertain whether, in an animal model, continuous monitoring of mesenteric venous pressure (MVP) via an indwelling mesenteric venous catheter could assist in early detection of thrombosis of the portal vein (PVT) and superior mesenteric artery (SMAT). The role of portography via the catheter was also studied in confirming these complications. An animal model of PVT and SMAT was developed in pigs. At laparotomy, a 20-cm jejunal loop was isolated and a heparin-coated catheter was inserted into a mesenteric vein of the isolated jejunum and connected to a pressure transducer. Conditions of PVT were simulated by progressive occlusion of the portal vein (PV) using a silastic tourniquet and those of SMAT by superior mesenteric artery (SMA) clamping. MVPs (mm Hg) were found to significantly increase with all degrees of PV occlusion (P< 0.01, Student's t test) and to significantly decrease after SMA occlusion (P< 0.01). Portography clearly demonstrated all degrees of PV stenosis after PV occlusion and stasis of contrast medium during SMA occlusion. The authors feel that this method enables rapid diagnosis of PVT and SMAT and may be useful in the monitoring of the therapy for these complications after small bowel transplantation.
Guest Editorial (2009)

The six contributed papers in this special issue focus on the theme of lower extremity exoskeletons for gait rehabilitation.
Immediate effects of cosmetic products on skin surface highlighted by nanoscale topography on ex vivo human skin (2017)

International audience
THE INFLUENCE OF GROWTH AND PUBERTAL MATURATION ON NEUROMUSCULAR PERFORMANCE IN HIGH-RISK FEMALE ATHLETES (2002)

Purpose: It is well documented that post-pubescent adolescent female athletes suffer serious knee ligament injuries (eg. ACL injuries) at a rate four to six-fold greater than male athletes in the same sports. Neuromuscular differences in dynamic control of the knee joint have been reported to play a significant role in the gender discrepancy in knee injury incidence. The purpose of our analysis was to determine the effects of puberty on the neuromuscular system which might account for this gender gap. METHODS: We analyzed the existing developmental literature relative to neuromuscular changes in boys and girls during and following puberty. We analyzed findings which were reliably and consistently reported across the published developmental literature. RESULTS: A significant increase in mean strength, neuromuscular performance and power occurs in adolescent boys within one year of peak velocity of growth in height and weight. No such neuromuscular performance spurt occurs in girls following peak growth in height and weight. More specifically, the Adolescent Growth Study from the University of California demonstrated significant correlations between chronological age and standing long jump (v = 0.71) and vertical jump (0.53) in boys but not in the standing long jump (−0.22) and vertical jump (0.11) of girls. CONCLUSION: These data demonstrate that during and following puberty, coincident with dramatic increases in height and weight, boys have a significant spurt in neuromuscular performance measures, while girls do not. These findings may underlie the neuromuscular differences in adolescent male and female athletes previously reported in the literature. The findings may also underlie the post-pubescent gender gap in knee injury incidence. Hence, dynamic neuromuscular training, previously demonstrated to significantly increase neuromuscular performance in female athletes, conducted during puberty, may sinificantly reduce the gender gap in neuromuscular performance and knee injury incidence in adolescent athletes.
Présentation du bloc-diagramme : Grand Canyon du Verdon (2004)

Ce document synthétise les principaux aspects géomorphologiques étudiés dans le secteur du Grand Canyon : - de vieilles formes : lambeaux d' aplanissement basculés, paléo- poljés (Canjuers) et paléoformes karstiques (sur les blocs soulevés au nord ) ; - les champs de dolines des monts, les formes nivales, les formations périglaciaires ou dues aux mouvements de masse ; - l'incision des canyons dans leur rapport avec les données structurales et tectoniques. Les données fournies par les formations sur la bordure du piémont de Valensole permettent d'analyser les phases morphotectoniques et de discuter des stades d'évolution du canyon.
An Efficient Microwave-Promoted Route to (Z)-Stilbenes from trans-Cinnamic Acids: Synthesis of Combretastatin A-4 and Analogues (2009)

cis-Stilbenes were synthesized from trans-cinnamic acids, involving ethylenic-bond bromination and a subsequent one-pot microwave-promoted stereoselective debrominative decarboxylation-Suzuki cross-coupling strategy. This sequence represents a useful way to prepare a variety of combretastatin A-4 derivatives.
Cancer Cell Migration: Integrated Roles of Matrix Mechanics and Transforming Potential (2011)

Significant progress has been achieved toward elucidating the molecular mechanisms that underlie breast cancer progression; yet, much less is known about the associated cellular biophysical traits. To this end, we use time-lapsed confocal microscopy to investigate the interplay among cell motility, three-dimensional (3D) matrix stiffness, matrix architecture, and transforming potential in a mammary epithelial cell (MEC) cancer progression series. We use a well characterized breast cancer progression model where human-derived MCF10A MECs overexpress either ErbB2, 14-3-3f, or both ErbB2 and 14-3-3f, with empty vector as a control. Cell motility assays showed that MECs overexpressing ErbB2 alone exhibited notably high migration speeds when cultured atop two-dimensional (2D) matrices, while overexpression of 14-3-3f alone most suppressed migration atop 2D matrices (as compared to non-transformed MECs). Our results also suggest that co-overexpression of the 14-3-3f and ErbB2 proteins facilitates cell migratory capacity in 3D matrices, as reflected in cell migration speed. Additionally, 3D matrices of sufficient stiffness can significantly hinder the migratory ability of partially transformed cells, but increased 3D matrix stiffness has a lesser effect on the aggressive migratory behavior exhibited by fully transformed cells that co-overexpress both ErbB2 and 14-3-3f. Finally, this study shows that for MECs possessing partial or full transforming potential, those overexpressing ErbB2 alone show the greatest sensitivity of cell migration speed to matrix architecture, while those overexpressing 14-3-3f alone exhibit the least sensitivity to matrix architecture. Given the current knowledge of breast cancer mechanobiology, these findings overall suggest that cell motility is governed by a complex interplay between matrix mechanics and transforming potential.
Effect of ion-implantation on magnetic switching fields of single-domain, magneto-optic elements (1983)

The effect of multiple B+ implantation on 109 μm square single-domain magneto-optic elements formed by chemical etching of Bi-doped Tm:YIG epitaxial films ( <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">\sim 7 \mu</tex> m) is investigated by measuring the external switching field H <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">sw</inf> sw required to reverse the magnetization <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">\bar{M_{s}}</tex> as a function of implant profile, dosage, and the angle θ between the field and the film normal. For low doses (< 0.15% strain), switching is determined by coherent rotation in the implanted layer; H <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">sw</inf> decreases linearly ( <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">\lambda_{111} = -5.5 \times 10^{-6,} \theta = 0\deg</tex> ) from H <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">k</inf> . 4πM <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">s</inf> = 3995 Oe to 566 Oe and H <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">sw</inf> (θ) is the classic switching curve for a uniaxial anisotropy. For higher doses, H <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">sw</inf> remains constant or increases slightly, and H <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">sw</inf> <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">(\theta) \propto (\cos\theta)^{-1}</tex> , indicating that switching is limited by wall motion, and the force proportional to <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">\nablaH_{k}</tex> at the implant/bulk interface. With annealing H <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">sw</inf> increases for low dose as H <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">k</inf> increases, and decreases for higher doses as <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">\nablaH_{k}</tex> decreases. Measurements width three stain profiles intricate that more gradual strain transitions produce lower H <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">sw</inf> due to decreased <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">\nablaH_{k}</tex> .
Corrigendum: Protein kinases as switches for the function of upstream stimulatory factors: implications for tissue injury and cancer (2016)

A corrigendum on "Protein kinases as switches for the function of upstream stimulatory factors: implications for tissue injury and cancer". by Tina Horbach, Claudia Götz, Thomas Kietzmann , Elitsa Y. Dimova., 2015 Feb 18;6:3. doi: 10.3389/fphar.2015.00003.Correct an error in the reference list. The correction does not affect the scientific validity of the results. Reference 14 in our paper is wrong: Refrence 14: Bussiere M., Vance J. E., Campenot R. B., Vance D. E. (2001). Compartmentalization of choline and acetylcholine metabolism in cultured sympathetic neurons. J. Biochem. (Tokyo) 130, 561–568 10.1093/oxfordjournals.jbchem.a003019 is not correctCorrect one citation is:Bussière FI, Michel V, Mémet S, Avé P, Vivas JR, Huerre M, Touati E. (2010). H. pylori-induced promoter hypermethylation downregulates USF1 and USF2 transcription factor gene expression. Cell Microbiol 12, 1124-33 doi: 10.1111/j.1462-5822.2010.01457.x.
COMBUSTION LIMITS OF HYDROGEN--OXYGEN--NITROGEN--STEAM MIXTURES. Final Report. (1968)

a limited range of homogeneity and cubic NbC with a solubility range of 8.25 to 10.25 wt.% C. The solubility of C in Nb was determined to be 0.80 wt.% at the eutectic temperature, but this value decreased rapidly with temperature. A peritectic reaction between melt, Nb/sub 2/C, ard NbC was indicated; alloys richer in C than NbC froze by eutectic reaction. H-Nb equilibrium was studied at 300 to 1500 deg C and O to 760 mm Hg equilibrium H/sub 2/ pressure by the Sieverts technique. A continuous solid solution was formed in the range, exhibiting bcc structure with lattice parameter increasing with increasing H content. The formation of the solid solution was exothermic. Below 300 deg C, the existence of a non-classical phase transformation was observed. The N - Nb equilibrium diagram was investigated in the composition range up to stoichiometric NbN and temperatures up to 2500 deg C. The boundary of the Nb-N solid solution was established by direct chemical analysis. Solubility was found to be 0.25 wt.% N at 1200 deg C and 2.5 wt.% at 2400 deg C. X-ray-diffraction studies revealed the existence of close-packed hexagonal Nb/sub 2/N, tetragonal NbN (Nb/sub 4/N/sub 3/), face-centered cubic NbN, and hexagonal NbN. A N-Nb phase diagram is presented which incorporates the observed equilibrium phenomena. X-raydiffraction studies and metallographic examinations of the Nb-Nb-O system revealed equilibrium between Nb/sub 2/N and NbO and between Nb/sub 2/ and NbO/sub 2/. (See also ARF-2120-3 and ARF-2120-4.) (C.J.G.)
Multiple Molecular Forms of Uridine Diphosphate Glucose Pyrophosphorylase from Salmonella typhimurium (1971)

A wild type strain of Salmonella typhimurium produced three forms (II, IIIa, and IIIb) of uridine diphosphate glucose pyrophosphorylase (EC 2.7.7.9), the molecular weights of which were around 40,000, 40,000, and 80,000, as determined by centrifugation in a sucrose density gradient. A deletion mutant his-519, lacking gene galF, produced a single species (IV) of the enzyme with a molecular weight around 80,000. Enzyme IIIa was converted in vitro into Enzyme II; this conversion required a factor that was present also in the cells lacking the galF gene. Enzyme IIIa was also converted into a dimer, IIIb, and this conversion was accelerated by small amounts of NaCl. Enzymes II, IIIb, and IV were stable and were not further converted into any other form at neutral pH. It is suggested that the structural gene for uridine diphosphate glucose pyrophosphorylase, galU, codes for a polypeptide which forms a tightly associated dimer (Enzyme IV) in the absence of products specified by the gene galF. In the wild type cells, however, the products coded for by the galF gene modify the galU-specified polypeptide so that it can now exist as a monomer (Enzyme IIIa), which in turn can be further converted into Enzyme II or IIIb.
Kinetik der stereospezifischen Polymerisation des Propylens zu isotaktischen Polymeren (1957)

Abstract Um die Kenntnis des Mechanismus der stereospezifischen Polymerisationen der α‐Olefine zu isotaktischen Polymeren zu vertiefen, wurde das kinetische Verhalten eines typischen Katalysatorsystems untersucht. Dieses Katalysatorsystem enthält als charakteristische feste kristalline Phase das Halogenid eines Zwischenschalenelementes in einer niedrigen, durch starke Elektropositivität gekennzeichneten Oxydationsstufe sowie ein Metallalkyl. Es wird gezeigt, daß die Polymerisationsreaktion einem echt katalytischen Prozeß heterogener Natur entspricht. Wenn stabilisierte Katalysatoren angewandt werden, ist dabei die Reaktionsgeschwindigkeit zeitkonstant. Die Reaktionsordnungen bezüglich der verschiedenen Variablen werden bestimmt und die Aktivierungsenergie ermittelt.
Stochastic bound on delay for guaranteed rate nodes (2002)

We find that the probabilistic bound on delay in the article by Goyal et al. (see Springer Multimedia Syst., vol.5, p.157-63, 1997) is incorrect. The problem originates from: 1) the difference between stationary and Palm probabilities and 2) treating the arrival counting process over some random time intervals as if the time interval would be fixed. The error is propagated to some later work, e.g., recently by Bensaou et al.(see IEEE/ACM. Trans. Networking, vol.9, p.591-603, Oct. 2001), which derived some probabilistic delay bounds based on Goyal et al. in 1997. We give fixes to the above problem.
Efficient search in peer to peer networks (2004)

Peer-to-peer systems have emerged as a popular way to share huge volumes of data. The usability of these systems depends on effective techniques to find and retrieve data; however, current techniques used in existing P2P systems are often very inefficient. In this paper, we present three techniques for efficient search in P2P systems. We present the design of these techniques, and then evaluate them using a combination of experiments over Gnutella, the largest open P2P system in operation, and analysis. We show that while our techniques maintain the same quality of results as currently used techniques, our techniques use up to 5 times fewer resources. In addition, we designed our techniques to be simple in design and implementation, so that they can be easily incorporated into existing systems for immediate impact. Keywords: Peer-to-peer, distributed data, search, performance modeling, evaluation Technical Area(s): Databases, performance modeling and evaluation 1