gebhart/patrepeval huggingface dataset:
I-RBAC: An Identity&#x00026; Role Based Access Control Model (2007)

Role-based Access Control (RBAC) provides an efficient means of managing authorization of the system resources. In the implementation phase, access control should be strong and efficient based on user authentication information, so the RBAC mechanism commonly requires authentication as a prerequisite. By cooperating with identity-based cryptography, this paper first presents an identity& role based access control (I-RBAC) model which supports user's authentication internally. In our model, both aspect of user authentication and role-based authorization can be verified by a user's signature simultaneously. An implementation method of I-RBAC is also presented using a variant of an ID-based signature scheme due to Cha and Cheon.
Production of Bio Gas Oil from Bioparaffins over Pt/sapo-11 (2010)

Abstract preview not available - see full-text PDF article.
<b>Steric Course and Specificity of α-Chymotrypsin-catalyzed Reactions. I</b> (1962)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSteric Course and Specificity of α-Chymotrypsin-catalyzed Reactions. IGeorge E. Hein and Carl. NiemannCite this: J. Am. Chem. Soc. 1962, 84, 23, 4487–4494Publication Date (Print):December 1, 1962Publication History Published online1 May 2002Published inissue 1 December 1962https://pubs.acs.org/doi/10.1021/ja00882a024https://doi.org/10.1021/ja00882a024research-articleACS PublicationsRequest reuse permissionsArticle Views457Altmetric-Citations76LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Gait initiation in parkinson's disease (1997)

We studied the kinematic patterns of gait initiation in 31 patients with Parkinson's disease and in 20 age- and sex-matched normals by using an optoelectronic tracking system (ELITE). Position markers were attached to the skin overlying the ankle, knee, hip, elbow, shoulder, and zygomatic bone. Subjects were instructed to start walking immediately after an acoustic go signal. Gait initiation was defined as the phase between standing motionless and steady-state locomotion. This phase was subdivided into a movement preparation period (the time between go signal and movement onset) and a movement execution period (the time between movement onset and the end of the first stride). Onset and duration of ankle, knee, hip, trunk, and arm motion within the first stride were analyzed. Movement preparation time was significantly increased in Parkinson's disease (p = 0.01), whereas movement execution times were similar in both groups (p = 0.23). Initiation of ankle, knee, hip, arm, and trunk movements was delayed in patients as compared with healthy subjects, but the relative timing and the sequence of submovements was comparable in both groups, indicating that the overall pattern of submovements was preserved in the patients. Our data suggest that gait initiation deficits in Parkinson's disease cannot be explained by a disordered sequence of limb and trunk submovements. More likely, gait initiation problems originate from the basal ganglia's internal cueing deficit for movement sequences, delaying onset and slowing the execution of all subcomponents.
PfHRP2 Measures Schizogony, Not Mechanical Blockage (2006)

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Immunogenicity and protective efficacy in a rhesus monkey model of vaccine Ac NFUi(S-) MRC against primary type 2 herpes simplex virus infection. (1982)

Adult and juvenile Rhesus monkeys were vaccinated with sub-unit formaldehyde-inactivated vaccine Ac NFU(1)(S-) MRC; no local or systemic side-effects followed vaccination. Vaccinated monkeys developed neutralizing and immunoprecipitating antibody to both type 1 and 2 herpes simplex virus. Antibody levels declined with time but were re-stimulated after virus challenge and to a lesser extent after attempted virus reactivation. There was evidence of protection against s.c. challenge with live type 2 herpes simplex virus.
Image synthesis from a sparse set of views (1997)

The authors present an image synthesis methodology and a system built around it. Given a sparse set of photographs taken from unknown viewpoints, the system generates images from new, different viewpoints with correct perspective, and handles occlusion. It achieves this without requiring any knowledge about the 3D structure of the scene nor the intrinsic camera parameters. The photo-realistic rendering process is polygon based and can be potentially implemented as real time texture mapping. The system is robust to noise by taking advantage of duplicate information from multiple views. They present results on several example scenes.
Perception and characterization of materials using signal processing techniques (2001)

In this paper, we develop a methodology and a conceptual framework in which manipulations are undertaken for perceiving and characterizing materials. Within this framework, we distinguish different materials (unknown environments) by actively contacting and testing them, and by analyzing the resulting sounds using a microphone. For this implementation, we identify sensor-derived measures that are diagnostic of a material's properties, and use these measures to categorize the objects (or unknown environments) in their different material class. The parameter of characterization is the internal angle of friction of the materials. This parameter is determined by the relation of strain and stress properties. Using this theoretical approach and the experimental results, we conclude that the statement of shape-invariance of materials is critical and invalid in real cases.
Law School & The Web of Group Affiliation: Socializing, Socialization, and Social Network Site Use Among Law Students, 27 J. Marshall J. Computer & Info. L. 325 (2010) (2010)

Online social network sites (“SNS”) have emerged as a significant socio-technical phenomenon in the past several years. Scholars from various disciplines have examined these sites to develop a better understanding of their social significance and implications from a variety of perspectives. Within the burgeoning field of SNS studies, one strand of work focuses on the place of SNSs in students’ educational experiences and the potential pedagogical applications of SNSs. However, the SNS phenomenon generally, and its educational/pedagogical significance in particular, have received scant attention from legal scholars. This article examines the place of SNSs within the contemporary law school experience, through a case-study of students at one law school. The article gauges differences in Facebook by students’ age, gender, race/ethnicity, and other characteristics and analyzes students’ Facebook communications as they pertain to the performance of law student identity and role.
The Marcona Magnetite Deposit, Ica, South-Central Peru: A Product of Hydrous, Iron Oxide-Rich Melts? (2010)

Marcona, the preeminent Andean magnetite deposit (1.9 Gt @ 55.4% Fe and 0.12% Cu), is located in the iron oxide copper-gold (IOCG) subprovince of littoral south-central Peru. Fe oxide and Cu (-Zn-Pb) sulfide mineralization was controlled by northeast-striking faults transecting a Middle Jurassic (Aalenian-to-Oxfordian) andesitic, shallow-marine arc and a succession of contiguous, plate boundary-parallel, Late Jurassic to mid-Cretaceous volcanosedimentary basins.

At Marcona, hydrothermal activity was initiated in the earliest Middle Jurassic (161–177 Ma) by high-temperature Mg-Fe metasomatism represented by cummingtonite and phlogopite-magnetite assemblages. Subsequently, during the terminal eruptions (156–162 Ma) of the arc, widespread albite-marialite alteration (Na-Cl metasomatism) was followed by the emplacement of an en echelon swarm of massive magnetite ore-bodies with subordinate, overprinted magnetite-sulfide assemblages, hosted largely by Paleozoic metasilici-clastics. The magnetite orebodies exhibit abrupt, smoothly curving contacts, dike-like to tubular apophyses, and intricate, amoeboid interfingering with dacite porphyry intrusions. There is no convincing megascopic or microscopic evidence for large-scale Fe metasomatism associated with the main, sulfide-poor mineralization. The largest, 400 Mt Minas 2-3-4 orebody is interpreted as a bimodal magnetite-dacite intrusion comprising commingled immiscible melts generated through the dissolution of metasedimentary quartz in parental andesitic magma. Oxygen and sulfur stable-isotope geothermometry indicates that the evolution at ca. 159 Ma from magnetite-biotite-calcic amphibole ± phlogopite ± fluorapatite to magnetite-phlogopite-calcic amphi-bole-pyrrhotite-pyrite assemblages coincided with quenching from above 800° C to below 450°C and the concomitant exsolution of dilute aqueous brines. Subsequently, chalcopyrite-pyrite-calcite ± pyrrhotite ± sphalerite ± galena assemblages, in part metasomatic, were deposited from lower temperature (≤360°C) brines.

The Cu-poor Marcona (“Kiruna-type”) magnetite and Cu-rich IOCG deposits in the district, therefore, although spatially contiguous, represent contrasting ore deposit types. The former are interpreted as the product of Fe oxide melt coexisting with dacite magma within an andesitic arc which failed during the closure of a back-arc basin. The weak associated magmatic-hydrothermal Cu sulfide mineralization at Marcona was generated through melt vesiculation and contrasts with the considerably higher grade Cu- and Ag-rich orebodies of the major Cu-rich IOCG deposits in the Central Andes, e.g., La Candelaria-Punta del Cobre, Mantoverde, Raul-Condestable, and Mina Justa, which were the products of cool, oxidized, hydrothermal fluids plausibly expelled from the adjacent basins during tectonic inversion.
Serological Diagnosis of Ovine Enzootic Abortion by Enzyme-Linked Immunosorbent Assay with a Recombinant Protein Fragment of the Polymorphic Outer Membrane Protein POMP90 of<i>Chlamydophila abortus</i> (2002)

Ovine enzootic abortion (OEA) resulting from infection of sheep and goats with Chlamydophila abortus is of major economic importance worldwide. Over the last 50 years the serological diagnosis of infection has been based mainly on the complement fixation test (CFT), which lacks both sensitivity and specificity because of cross-reactive antibodies to other gram-negative bacteria, including another common chlamydial pathogen of sheep, Chlamydophila pecorum. In the present study, a series of overlapping recombinant antigens representing the polymorphic outer membrane protein POMP90 of C. abortus was assessed by enzyme-linked immunosorbent assay (ELISA) with a panel of 143 serum samples from sheep experimentally infected with C. abortus, from sheep clinically free of OEA, and from specific-pathogen-free lambs experimentally infected with different subtypes of C. pecorum. The results were compared to those obtained by CFT and another recently described test, an indirect ELISA (iELISA) with the recombinant OMP91B (rOMP91B) fragment (rOMP91B iELISA) (D. Longbottom, E. Psarrou, M. Livingstone, and E. Vretou, FEMS Microbiol. Lett. 195:157-161, 2001). The rOMP90-3 and rOMP90-4 ELISAs were identified as being more sensitive and specific than CFT. Assays with both fragments were evaluated further with a panel of 294 field serum samples from flocks with documented histories of abortion, from flocks with no clinical histories of abortion but which had a high proportion of samples seropositive by CFT, and from animals with no histories of abortion but from which various C. pecorum subtypes had been isolated. ELISAs with both POMP90 fragments outperformed CFT with serum samples from C. pecorum-infected animals, producing no false-positive results. However, the ELISA with the rOMP90-4 fragment appeared to be more sensitive than the one with rOMP90-3, as it identified more of the OEA-positive samples. The ELISA with the rOMP90-4 fragment was also able to identify apparently healthy animals that were infected with an enteric strain of C. abortus in flocks that were probably infected with both enteric C. abortus and C. pecorum strains. The identification of animals infected with enteric C. abortus is extremely important in controlling the spread of OEA. Overall, the new rOMP90-4 ELISA was found to be a more sensitive and specific test than CFT for differentiating animals infected with C. abortus from those infected with C. pecorum.
Nerve regeneration through a healthy peripheral nerve trunk as a nerve conduit: A preliminary study of a new concept in peripheral nerve surgery (2002)

The popularity of nerve conduits has increased recently due to the need for alternative nerve reconstruction techniques, obviating the harvest of nerve grafts. Based on ideas suggesting nerve tissue itself, which was the most physiologic environment for nerve regeneration, a study using 40 sciatic nerves of 20 rats was performed. The proximal stumps of transected peroneal nerves were sutured to the lateral wall of healthy tibial nerve trunks after removal of the epineurium. Twelve weeks later, tissue samples were taken from the anastomosis sites and from the levels above and below these sites. Configurations of fascicles were evaluated, and numbers of fibers were estimated. It was observed that the fibers of peroneal nerves regenerated into and through the tibial nerve trunk distally. This suggested that active regenerating fibers of a proximal stump of a nerve could regenerate and progress as a fascicular unit in optimum condition at the trunk of another healthy nerve. This preliminary study should stimulate further studies based on this new concept: that a nerve trunk can serve as the host for the regenerating fibers of another nerve.
An algorithmic of analog-to-digital converter using current-mode and digital CMOS process (2002)

In this paper a new algorithmic of Analog-to-Digital Converter is presented. This new topology use the current-mode technique that allows a large dynamic range and can be implemented in digital CMOS process. The ADC proposed is very small and can handle high sampling rates. Simulation results using a 1.2um CMOS process show that an 8-b ADC can support a sampling rate of 50MHz.
Deontische Tautologien (1989)

Neue Theorien und Begriffe — auch die der Linguistik — müssen sich bewähren. Sie tun es, wenn sie uns die Augen öffnen für etwas, das wir ohne sie so nicht gesehen hatten und hätten und das wir dann, wenn wir es sehen, interessant und wichtig finden. Bestehen sie diesen Test, dann behalten wir sie bei. Bestehen sie ihn nicht, dann sind sie überflüssig.
Endovenous Radiofrequency Ablation for the Treatment of Varicose Veins (2007)

Chronic venous insufficiency (CVI) is the most common vascular disease and represents a significant health care problem in the United States. Reflux of the great saphenous vein is the most common cause of this condition, whose symptoms include varicose veins, leg swelling, skin discoloration, and ulceration. The traditional treatment of this condition is saphenofemoral ligation with stripping of the saphenous vein followed by varicose vein removal, if necessary. Recent advances in minimally invasive endovenous therapy have led to the development of catheter-based radiofrequency ablation (RFA) of the saphenous vein, which has gained an increasing acceptance in clinical practice. Endovenous RFA was introduced into clinical practice in Europe in 1998 and in the United States in 1999. Since then, over 250,000 procedures have been performed worldwide. Procedure safety and efficacy are well understood, with over 60 publications on the subject in the peer review literature, including four randomized trials comparing this technology with traditional vein stripping surgery. With the advent of tumescent anesthesia, the majority of RFA procedures are now performed in an office setting. This article examines the current technology using RFA in saphenous vein ablation with the Closure catheter system. Procedural techniques and clinical outcome using RFA in saphenous vein ablation are discussed. Clinical data comparing RFA versus saphenous vein stripping are also examined. Lastly, the clinical utility of a new RFA catheter, ClosureFAST, is discussed. ClosureFAST is a new generation of RFA catheter and has exhibited significant improvement in the ease of use and the procedure speed over the previous generation catheters while maintaining the favorable patient recovery profile seen with the RFA technology.
Effect of prostaglandin E1 on the permeability response of the isolated collecting tubule to vasopressin, adenosine 3′,5′-monophosphate, and theophylline (1968)

The effect of prostaglandin E(1) (PGE(1)) on the water permeability response to vasopressin, theophylline, and cyclic adenosine 3',5'-monophosphate (C-AMP) of isolated, perfused collecting tubules of the rabbit was investigated in vitro. Prostaglandin is a naturally occurring substance present in a number of tissues, including kidney. It has been implicated in the action of a variety of hormones, many of which are known to exert their physiological effects through the intermediacy of the C-AMP system. In the collecting tubule, PGE(1) (10(-7) M) elicited a minimal increase in net water absorption along an osmotic gradient. However, when administered in association with a concentration of vasopressin (2.5 muU ml(-1)) selected to induce a submaximal increment in water absorption, the effect of the latter was reduced by approximately 50%. Theophylline (5 x 10(-3) M) also increased net water absorption, an effect not previously demonstrated in renal tissue. This effect was potentiated by the simulataneous addition of PGE(1). In contrast, PGE(1) did not influence the increase in net water absorption induced by C-AMP (10(-2) M). Since C-AMP is responsible for the permeability effects of vasopressin in renal tissue, the present results are consistent with the view that PGE(1) interferes with the action of the octapeptide by competing with it at a site which influences the generation of C-AMP. In addition it is proposed that prostaglandin may be an important modulator of the action of vasopressin. The tubule is exquisitely sensitive to the hormone, responding to as little as 0.25 muU ml(-1). It is conceivable that in the intact animal prostaglandin may serve to dampen the effects of small amounts of residual hormone and thereby prevent overshoots in permeability which might otherwise occur.
Explicit two-source extractors and more (2016)

In this thesis we study the problem of extracting almost truly random bits from imperfect sources of randomness. This is motivated by the wide use of randomness in computer science, and the fact that most accessible sources of randomness generate correlated bits, and at best contain some amount of entropy. We follow Chor and Goldreich [CG88] and Zuckerman [Z90], and model weak sources using min-entropy, where an (n,k)-source X is a distribution on n bits and takes any string x with probability at most 2^-k. It is known that it is impossible to extract random bits from a single (n,k)-source, and Chor and Goldreich [CG88] raised the question of extracting randomness from two such independent (n,k)-sources. Existentially, such 2-source randomness extractors exist for min-entropy k >=log n + O(1), but the best known construction prior to work in this thesis requires min-entropy k >=0.499 n [B2]. One of the main contributions of this thesis is an explicit 2-source extractor for min-entropy log^C n, for some constant C. Other results in this thesis include improved ways of extracting random bits from various other sources of randomness, as well as stronger notions of randomness extraction. Our results have applications in privacy amplification [BBR88,Mau92,BBCM95], which is a classical problem in information cryptography, and give protocols that achieve almost optimal parameters. Other applications include explicit constructions of non-malleable codes, which is a relaxation of the notion of error-detection codes and have applications in tamper-resilient cryptography [DPW10].
International reference guide to space launch systems (2000)

A reference with details on launch programs in Brazil, China, Europe, India, Israel, Japan, Russia, Ukraine, and the United States. Packed with illustrations and figures, this edition has updated, expanded, and standardized performance data. New Features: New systems included are Angara, Beal's BA-2, Delta III and IV, H-IIA, VLS, LeoLink, Minotaur, Soyuz 2, Strela, Proton M, Atlas III and V, Dnepr, Kistler's K-1, Shtil, with details on Sea Launch using the Zenit vehicle. Updated flight records with added details (e.g. payload mass, delivery orbit, manifest type). More detailed failure descriptions. Reorganized alphabetically by system to reflect the international cooperation in vehicle development, marketing, and operation. SI units used throughout. There is a chapter on spaceports, with detailed maps. Standard sections describe each of the launch systems in detail, including: one-page vehicle summaries, cost, availability, performance graphs for a variety of orbits, flight history and failure descriptions, vehicle design and technical data, payload accommodations, production and launch operations, and vehicle history.
Nebulisers: their effectiveness, indications and limitations (2007)

Abstract The authors describe the indications and adverse effects of nebulisers and show how careful assess ment can identify those patients who will benefit. Copyright © 2007 Wiley Interface Ltd
Analysis methods for results in gamma-ray astronomy (1983)

The procedures in current use for analyzing the results of gamma-ray astronomy experiments are assessed. Two formulas are proposed for estimating the significance of positive observations in searching gamma-ray sources or lines. The correctness of the formulas is tested with the aid of Monte Carlo simulations. One formula is derived by immediately estimating the standard deviation of the observed signal N<SUB>S;</SUB> the other is derived by applying the method of the statistical hypotheses test.
A Microdialysis Technique for Routine Measurement of Macromolecules in the Injured Human Brain (2005)

Microdialysis catheters with high-cutoff membranes can be used in routine clinical practice, allowing for sampling and analysis of cytokines and other macromolecules.