gebhart/patrepeval huggingface dataset:
New degradation mechanism associated with hydrogen in bipolar transistors under hot carrier stress (1993)

Avalanche hot carrier induced bipolar device degradation as a function of temperature, current density, and time is reported. The observed drift in emitter-base breakdown voltage (Vebo) is found to be well correlated to changes in forward base (Ib) and collector (Ic) currents. The model of hydrogen release from the Si-SiO2 interface and its subsequent passivation of base dopants during hot carrier stress is proposed to account for such a correlation.
Aging in vitro and D‐glucose uptake kinetics of diploid human fibroblasts (1981)

By use of a rapid technique, initial rates of D-glucose transport were obtained during the lifespan in vitro of a commercially available strain of human embryo lung fibroblasts (Flow 2000). The apparent Km of the D-glucose carrier did not change during senescence in vitro: x = 1.8 mM (range 1.3-2.3) in phase II, x = 1.8 mM (range 1.5-2.2) in phase III. Transport rates remained constant in stationary phase II cultures, which had completed between 30% and 80% of their replicative lifespan. A wide variation, however, was observed in terminally differentiated cells (phase III), which showed a two- to threefold increase in average cell size and protein content. In some senescent cultures, glucose transport calculated on a per cell basis was also two- to threefold increased, while it was strongly decreased (-75%) in others. When calculated per unit of cell water, protein, and surface area, respectively, transport rates in phase III cultures ranged from values established for stationary phase II cultures down to very low values. Detaching cells flushed off from senescent cultures did not show measurable rates of glucose transport into the inulin impermeable cell space. Present evidence argues against the idea that an impairment of D-glucose transport might precede loss of replicative potential in aging human fibroblasts. Instead our data indicate that the transport capacity of cell membrane finally decreases during postreplicative senescence in terminally differentiated cells.
Performance Analysis of License Assisted Access LTE with Asymmetric Hidden Terminals (2016)

License Assisted Access (LAA) LTE (LTE-LAA) is a new type of LTE that aggregates the licensed LTE bands with the unlicensed bands via carrier aggregation. To operate in unlicensed bands, LTE-LAA adopts the listen-before-talk policy and designs its channel access mechanism similar to WLAN's DCF. In this paper, we consider an LAA network consisting of an LTE-LAA eNB coexisting with a Wi-Fi STA, and capture the {\em asymmetric hidden terminal problem} where the eNB recognizes the STA while the opposite is not true, which is caused by the asymmetric CCA thresholds between them. We model the network as a joint Markov chain (MC) consisting of two individual MCs, and derive its steady-state probabilities, throughput, and channel access delay along with other key metrics like transmit, busy, collision, and doubling probabilities. Through extensive evaluation, we confirm that the proposed model well predicts the dynamics of the LAA network, and identify important design guidelines for fair coexistence between LTE-LAA and WLAN as follows. First, LTE-LAA should design its contention window (CW) doubling policy by considering Wi-Fi's packet duration and subframe-dependent collision probabilities. Second, there exists a tradeoff between throughput and channel access delay, according to which the CW doubling policy should be adapted.
신용카드사의 웹사이트 서비스품질이 e-로열티 및 가상공동체의식에 미치는 영향: 지각된 보안위험 조절효과를 중심으로 (2016)

The purpose of this study is to examine the effect of website service quality of credit card company on e-loyalty and a sense of community as well as a mediating effect of e-loyalty on relationship between website service quality and a sense of virtual community, and a moderating effect of perceived security risk on relationship between website service quality and e-loyalty. To measure website service quality, four elements are suggested as follows: communication, system operation, aesthetics, and exchange process. Five hypotheses are proposed and tested empirically. All of elements of website service quality have a positive effect on e-loyalty. Also, three element except aesthetics have a positive effect on a sense of virtual community. There are mediating effects of e-loyalty on relationship between all of elements of website service quality and a sense of virtual community, and moderating effects on both relationship between system operation and e-loyalty and relationship between exchange process and e-loyalty. Further theoretical and managerial implications as well as research limitations are discussed.
Residues of volatile halocarbons in foods using headspace gas chromatography (1982)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTResidues of volatile halocarbons in foods using headspace gas chromatographyRichard C. Entz, Kent W. Thomas, and Gregory W. DiachenkoCite this: J. Agric. Food Chem. 1982, 30, 5, 846–849Publication Date (Print):September 1, 1982Publication History Published online1 May 2002Published inissue 1 September 1982https://pubs.acs.org/doi/10.1021/jf00113a013https://doi.org/10.1021/jf00113a013research-articleACS PublicationsRequest reuse permissionsArticle Views106Altmetric-Citations29LEARN 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
An evaluation of screening programs for the detection of brucellosis in dairy herds. (1980)

Data were collected from approximately 1000 dairy herds, initially blood tested for brucellosis in 1977, in each of southeastern and southwestern Ontario. These data were used to evaluate three brucellosis screening programs, the area recertification program, the market cow program and the milk test program. The milk test program was the most efficient program at detecting brucellosis, 29.5% of the herds tested were classified as infected, but lacked the ability to detect a large proportion of "infected" herds (relative sensitivity = 24%). The market cow program was more efficient than the area recertification program at finding infected herds, 3.9% of the herds tested under the market cow program were infected, but had a low relative sensitivity of 12%. The area recertification program was least efficient, 2.3% of herds tested under the area recertification program were infected, but had the highest relative sensitivity (53%). The relative efficiency (predictive value) of the programs was not affected significantly by location of the herds, season of the initial test or herd size. The relative sensitivity of the milk test program was significantly higher in eastern than western Ontario and tended to decrease as herd size increased. The market cow program tended to be more sensitive in the summer months. The relative specificity of the milk test program (0.997) was higher than that of the market cow program (0.960) and the area recertification program (0.884).
Liquid Crystal Imaging Stokes Polarimeter (1999)

The Liquid Crystal based Stokes Polarimeter (LCSP) is a low voltage complete Stokes polarimeter which is developed for high resolution spectro-polarimetry. The polarimeter consists of two liquid crystal variable retarders in front of a polarizing beam splitter. It was installed and tested in combination with the new image scanner (Stolpe et al., 1997) at the Gregory Coude Telescope (GCT) at the Observatorio del Teide (Izana, Tenerife). We give some information on the basic design, a method of in situ compensation of cross-talk and some first observations
Biogenic amine production by Lactobacillus (2001)

The results have significance in relation to food poisoning caused by beverages that have been contaminated with biogenic amines.
"No conoces el precio de las palabras": Language and Meaning in Usigli's El gesticulador (1986)

El gesticulador is a play about politics and corruption, human relationships, the conflict between truth and lies, reality and appearance, and role-playing in all of its multiple dimensions. Rodolfo Usigli reveals these themes by underscoring discourse itself, because El gesticulador is ultimately a play about language and the power of words to create, reflect, and subvert reality. It is clearly a self-reflexive play, an example of metatheatre, and as such, it foregrounds the act of making meaning with words. In his important study of the play, John Kronik poses a series of questions relating to the role of language in El gesticulador—and, specifically, to the protagonist's claim, H e dicho ya que soy Cesar Rub io :
A<sub>1</sub>adenosine receptor knockout mice exhibit increased mortality, renal dysfunction, and hepatic injury in murine septic peritonitis (2005)

Sepsis is a leading cause of multiorgan dysfunction and death in hospitalized patients. Dysregulated inflammatory processes and apoptosis contribute to the pathogenesis of sepsis-induced organ dysfunction and death. A(1) adenosine receptor (A(1)AR) activation reduces inflammation and apoptosis after ischemia-reperfusion injury. Therefore, we questioned whether A(1)AR-mediated reduction of inflammation and apoptosis could improve mortality and organ dysfunction in a murine model of sepsis. A(1)AR knockout mice (A(1) knockout) and their wild-type (A(1) wild-type) littermate controls were subjected to cecal ligation and double puncture (CLP) with a 20-gauge needle. A(1) knockout mice or A(1) wild-type mice treated with 1,3-dipropyl-8-cyclopentylxanthine (a selective A(1)AR antagonist) had a significantly higher mortality rate compared with A(1) wild-type mice following CLP. Mice lacking endogenous A(1)ARs demonstrated significant elevations in plasma creatinine, alanine aminotransferase, aspartate aminotransferase, keratinocyte-derived chemokine, and tumor necrosis factor-alpha 24 h after induction of sepsis compared with wild-type mice. The renal corticomedullary junction from A(1) knockout mice also exhibited increased myeloperoxidase activity, intercellular adhesion molecule-1 protein, and mRNA encoding proinflammatory cytokines compared with renal samples from A(1) wild-type littermate controls. No difference in renal tubular apoptosis was detected between A(1) knockout and A(1) wild-type mice. We conclude that endogenous A(1)AR activation confers a protective effect in mice from septic peritonitis primarily by attenuating the hyperacute inflammatory response in sepsis.
From Oxazolines to Precursors of Aminoacids (1991)

Abstract After optimization of the reaction conditions, action of nucleophiles on the tosyl derivatives of 4-hydroxymethyl oxazolines 1 and 2 afforded precursors of α and β aminoacids.
The stability of insulin-loaded polybutylcyanoacrylate nanoparticles in an oily medium and the hypoglycemic effect in diabetic rats. (2005)

IPN in soybean oil containing Tween-20 (0.5% v/v) and Vitamin E (5% v/v) could be considered as an effective and stable delivery system for oral insulin.
Novel aromatic polyamides containing 2‐diphenylamino‐(9,9‐dimethylamine) units as multicolored electrochromic and high‐contrast electrofluorescent materials (2016)

ABSTRACT A series of electrochromic and photoluminescence‐active polyamides 4a‐4e were prepared from a novel dicarboxylic acid, N , N ‐di(4‐carboxyphenyl)‐2‐amino‐9,9‐dimethylfluorene, and five diamines via a condensation polymerization. These polyamides were amorphous and readily soluble in many solvents. The glass transition temperatures were in the range of 281–339 °C and the 10% weight loss temperatures in nitrogen were in excess of 490 °C. The polyamides exhibited strong fluorescence in either solution or solid states. The polyamides 4a‐4d showed reversible electrochemical redox with color changing from colorless to grey‐green. Specially, the polyamide 4e with 2‐diphenylamino‐(9,9‐dimethylamine) group in both diamine and dicarboxylic acid residues exhibited multicolored electrochromic behaviors. Furthermore, the fluorescence of these polyamides could be reversibly electroswitched with a high contrast up to 221.4, enabling their potential applications in dual‐switching electrochromic/electrofluorescent materials. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2017 , 55 , 213–222
Structural relationship between the hexameric and tetrameric family of glutamate dehydrogenases (1992)

The family of glutamate dehydrogenases include a group of hexameric oligomers with a subunit M(r) of around 50,000, which are closely related in amino acid sequence and a smaller group of tetrameric oligomers based on a much larger subunit with M(r) 115,000. Sequence comparisons have indicated a low level of similarity between the C-terminal portion of the tetrameric enzymes and a substantial region of the polypeptide chain for the more widespread hexameric glutamate dehydrogenases. In the light of the solution of the three-dimensional structure of the hexameric NAD(+)-linked glutamate dehydrogenase from Clostridium symbiosum, we have undertaken a detailed examination of the alignment of the sequence for the C-terminal domain of the tetrameric Neurospora crassa glutamate dehydrogenase against the sequence and the molecular structure of that from C. symbiosum. This analysis reveals that the residues conserved between these two families are clustered in the three-dimensional structure and points to a remarkably similar layout of the glutamate-binding site and the active-site pocket, though with some differences in the mode of recognition of the nucleotide cofactor.
Regression-based latent factor models (2009)

We propose a novel latent factor model to accurately predict response for large scale dyadic data in the presence of features. Our approach is based on a model that predicts response as a multiplicative function of row and column latent factors that are estimated through separate regressions on known row and column features. In fact, our model provides a single unified framework to address both cold and warm start scenarios that are commonplace in practical applications like recommender systems, online advertising, web search, etc. We provide scalable and accurate model fitting methods based on Iterated Conditional Mode and Monte Carlo EM algorithms. We show our model induces a stochastic process on the dyadic space with kernel (covariance) given by a polynomial function of features. Methods that generalize our procedure to estimate factors in an online fashion for dynamic applications are also considered. Our method is illustrated on benchmark datasets and a novel content recommendation application that arises in the context of Yahoo! Front Page. We report significant improvements over several commonly used methods on all datasets.
Yield Optimization and Time Structure of Femtosecond Laser Plasma<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="italic">K</mml:mi><mml:mi mathvariant="italic">α</mml:mi></mml:math>Sources (2000)

The generation of femtosecond Kalpha x rays from laser-irradiated plasmas is studied with a view to optimizing photon number and pulse duration. Using analytical and numerical models of hot electron generation and subsequent transport in a range of materials, it is shown that an optimum laser intensity I(opt) = 7x10(9)Z4.4 exists for maximum Kalpha yield. Furthermore, it is demonstrated that bulk targets are unsuitable for generating sub-ps x-ray pulses: instead, design criteria are proposed for achieving Kalpha pulse durations </=100 fs using foils of approximately 2 &mgr;m thickness.
Mining spectrum usage data (2009)

Dynamic spectrum access has been a subject of extensive research activity in recent years. The increasing volume of literature calls for a deeper understanding of the characteristics of current spectrum utilization. In this paper we present a detailed spectrum measurement study, with data collected in the 20MHz to 3GHz spectrum band and at four locations concurrently in South China. We examine the first and second order statistics of the collected data, including channel occupancy/vacancy statistics, channel utilization within each individual wireless service, and the temporal, spectral, and spatial correlation of these measures. Main findings include that the channel vacancy durations follow an exponential-like distribution, but are not independently distributed over time, and that significant spectral and spatial correlations are found between channels of the same service. We then exploit such spectrum correlation to develop a 2-dimensional frequent pattern mining algorithm that can accurately predict channel availability based on past observations.
Hybrid Cartesian and Orbit Element Feedback Law for Formation Flying Spacecraft (2002)

A spacecraft formation e ying control strategy is discussed where the desired orbit is prescribed in terms of specie c orbit element differences and the relative orbit is measured in terms of Cartesian coordinates of the rotating reference frame centered on the chief satellite. A direct method to map orbit element differences to their corresponding local Cartesian coordinates is presented. A numerical study illustrates theaccuracy with which this linearized transformation performs this coordinate transformation. A hybrid continuous feedback control law is thendevelopedthathasthedesired relativeorbitgeometryexplicitlygivenin termsoforbitelementdifferencesand the actual orbit given in terms of local Cartesian coordinates. A numerical simulation illustrates the performance and limitations of such feedback control laws. Using the linearized mapping between the relative orbit coordinates causes only a small performance penalty. However, it is advantageous to work in mean element space when determining the relative orbit tracking error.
Architecture of an MMS event manager (2002)

Event management is often considered as the most complex functional unit of the Manufacturing Message Specification (MMS). A model for an MMS event manager, i.e., the entity within the virtual manufacturing device (VMD) that is responsible for the management of MMS events, is presented.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Emissive RNA Alphabet (2011)

A fluorescent ribonucleoside alphabet consisting of highly emissive purine ((th)A, (th)G) and pyrimidine ((th)U, (th)C) analogues, all derived from thieno[3,4-d]pyrimidine as the heterocyclic nucleus, is described. Structural and biophysical analyses demonstrated that the emissive analogues are faithful isomorphic nucleoside surrogates. Photophysical analysis established that the nucleosides offer highly desirable qualities, including visible emission, high quantum yield, and responsiveness to environmental perturbations, traits entirely lacking in their native counterparts.
Reaction of bis-β-Chloroethyl Ether with Ethylenediamine (1940)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReaction of bis-β-Chloroethyl Ether with EthylenediamineM. E. Hultquist and E. H. NortheyCite this: J. Am. Chem. Soc. 1940, 62, 2, 447–448Publication Date (Print):February 1, 1940Publication History Published online1 May 2002Published inissue 1 February 1940https://pubs.acs.org/doi/10.1021/ja01859a505https://doi.org/10.1021/ja01859a505research-articleACS PublicationsRequest reuse permissionsArticle Views203Altmetric-Citations8LEARN 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
The musculature of the human renal calices, pelvis and upper ureter. (1982)

The musculature of the proximal part of the human upper urinary tract has been examined using light and electron microscopy. Two morphologically and histochemically distinct types of smooth muscle cell have been identified within the walls of the renal calices and pelvis. One type is rich in non-specific cholinesterase and appears identical in fine structure to the smooth muscle of the ureter. The second type is devoid of non-specific cholinesterase and possesses a number of unusual fine structural features. Cells of the latter type form a thin sheet of caliceal muscle which extends across the renal parenchyma to interconnect with adjacent minor calices. Similar cells extend away from the renal substance to form a discrete layer confined to the inner aspect of the muscle coat, the remainder of which consists of 'typical' smooth muscle cells arranged into compact bundles. The inner layer of 'atypical' cells is present in the walls of the major calices and pelvis but ceases in the pelvi-ureteric region. It is proposed that these 'atypical' cells are capable of spontaneous contractility and perform a pacemaker function which is responsible for the initiation of ureteric peristalsis.