gebhart/patrepeval huggingface dataset:
Design and implementation of high frequency AC-LED driver with digital dimming (2010)

In this paper a two-stage high frequency AC-LED driver is designed and studied. The front-stage is a boost power-factor correction (PFC) circuit and the rear-stage is a halfbridge series resonant inverter. The lighting characteristics of high frequency AC voltage driving LEDs, and the effect of LED to half-bridge resonant circuit are discussed. The proposed design uses the digital dimming control to reduce LED chromaticity shift, and connect the LEDs as a full-bridge rectifier to simplify the current sensing circuit. An 80-W high frequency AC-LED driver with universal voltage input (90~264 Vrms) is implemented to verify the design. Experimental results show that the variation of chromaticity coordinates (u', v') from brightness 100% to 20% is within 0.0023.
Menopausal genuine stress urinary incontinence treated with conjugated estrogens plus progestogens (1995)

We conclude that hormone replacement in the form of conjugated estrogens plus progestogens results in the clinical and urodynamic improvement of genuine stress urinary incontinence in postmenopausal women.
Nitric Oxide Contributes to Multiorgan Oxidative Stress in Acute Experimental Pancreatitis (1994)

The data suggest that nitric oxide is partly responsible for oxidative stress in acute haemorrhagic pancreatitis.
Worst-case static noise margin criteria for logic circuits and their mathematical equivalence (1983)

Various criteria have been formulated in the past for analytically calculating the worst-case static noise margins of logic circuits. Some of these criteria are based on infinitely long chains of gates, others on flip-flop circuits. It is shown that the flip-flop approach is equivalent to an infinitely long chain with respect to the worst-case static noise margin. Furthermore, the formal equivalence of four criteria for this worst-case static noise margin is demonstrated. Additionally, a method for computer simulation is discussed.
Modelling of failure prediction Bayesian network based on fault tree analysis (2010)

Based on the useful failure relationships embedded in the fault tree analysis (FTA), the paper proposes a failure prediction Bayesian Network (FPBN) modelling method to establish the practical model and facilitate its applications. In the modelling method, the transformation of events and logic relationships in FTA to variables, edges and conditional probability distributions (CPD) in FPBN are illustrated. Moreover, considering the developments of advanced detection devices, the detection information is also introduced in the FPBN model. At last, the case study of a tank clutch pedal (TCP) is carried out by transforming its FTA to a corresponding FPBN. The results show that, the proposed method can perform effectively in modelling FPBN based on FTA.
Segmented Polyurethans. Properties as a Funcation of Segment Size and Distribution (1969)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSegmented Polyurethans. Properties as a Funcation of Segment Size and DistributionL. L. Harrell Jr.Cite this: Macromolecules 1969, 2, 6, 607–612Publication Date (Print):November 1, 1969Publication History Published online1 May 2002Published inissue 1 November 1969https://pubs.acs.org/doi/10.1021/ma60012a008https://doi.org/10.1021/ma60012a008research-articleACS PublicationsRequest reuse permissionsArticle Views477Altmetric-Citations215LEARN 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
Strain variation limits protective activity of vaccines based on soluble <i>Babesia canis</i> antigens (1995)

Groups of five dogs were immunized with vaccines containing soluble parasite antigens (SPA) derived from in vitro culture of Babesis canis parasites, either obtained commercially (Pirodog) or produced at laboratory scale. Both vaccines generated antibodies that reacted with parasitised erythrocytes (PE). Upon challenge infection with homologous parasites, protection was evident from less severe decreases of haematocrit values, and reduced morbidity. Vaccinated animals, however, were not protected against challenge infection with heterologous B. canis parasites. Recovery from challenge infection coincided with the production of antibodies against parasitized erythrocytes. The results suggest that SPA from B. canis carry strain-specific determinants that are crucial for inducing protection in dogs against challenge infection, and explain vaccination failures in the field.
Phage Therapy ‐‐ Everything Old Is New again (2006)

The study of bacterial viruses (bacteriophages or phages) proved pivotal in the nascence of the disciplines of molecular biology and microbial genetics, providing important information on the central processes of the bacterial cell (DNA replication, transcription and translation) and on how DNA can be transferred from one cell to another. As a result of the pioneering genetics studies and modern genomics, it is now known that phages have contributed to the evolution of the microbial cell and to its pathogenic potential. Because of their ability to transmit genes, phages have been exploited to develop cloning vector systems. They also provide a plethora of enzymes for the modern molecular biologist. Until the introduction of antibiotics, phages were used to treat bacterial infections (with variable success). Western science is now having to re-evaluate the application of phage therapy - a therapeutic modality that never went out of vogue in Eastern Europe - because of the emergence of an alarming number of antibiotic-resistant bacteria. The present article introduces the reader to phage biology, and the benefits and pitfalls of phage therapy in humans and animals.
Consequences of intensive therapy of acute lymphoblastic leukemia in children in initial complete remission lasting more than five years. (1985)

Complex clinical, neurological and psychological examination was carried out in 23 children with acute lymphoblastic leukemia (ALL), being in complete initial remission from 5 to 12 years and without medication following the successful intensive therapy according to the protocol 0171 from 2 1/2 to 9 years. Somatic deficiency was observed in 2 children. Slightly hypoplastic bone marrow haemopoesis was found in 2 children. All children had normal haemogram. In 7 children lowered values of E-rosettes and in 3 children lowered levels of serum IgA were detected. Two children were HBsAg positive, in one of them with mild fibrosis was found at biopsy. Pathological neurological findings occurred in 7 children; pathological electromyogram (EMG) and electroencephalogram (EEG) in 8 and 5 children, respectively. Deviations of intellectual development were observed in 13 children. Deviations found can be connected in particular with long-term antileukemic therapy, especially with neurotoxic effects of some components of therapeutic regimen used (methotrexate, brain irradiation).
LONDON (2013)

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The influence of<i>trans</i>‐acids on desaturation and elongation of fatty acids in developing brain (1981)

Abstract trans ‐Monounsaturated acids account for up to 3% of the total octadecenoic acyl chains of human brain lipids. To investigate the influence of trans ‐acids on desaturation and chain elongation of fatty acids, in vitro and in vivo experiments with rat brain were performed. In the in vitro assays of Δ9 desaturation, Δ6 desaturation and chain elongation, trans,trans ‐dienoic acid was inhibitory, particularly to chain elongation. Slight differences between the inhibitory effects of trans ‐monoenoic acids and their cis ‐isomers were observed. In an in vivo model, unlabeled fatty acid (stearate, oleate, elaidate, linoleate, linoelaidate, arachidonate, or trans ‐monoene from margarine) was injected simultaneously with [1‐ 14 C] linoleic acid into the brains of suckling rats. Linoelaidate and oleate inhibited desaturation and elongation of linoleate, whereas elaidate, stearate and trans ‐monoene from margarine were stimulatory. While the demonstration of differences between cis and trans monoenic isomers required relatively high levels of the test acids, it appears that trans ‐acids can influence desaturation and elongation enzymes that lead to acyl chain modification in the central nervous system.
RF Shielding Effectiveness and Light Transmission of Copper or Silver Film Coating on Plastic Substrate (1976)

RF shielding effectiveness and light transmittance of acopper or silver film coating on a plastic substrate is investigated. The dependence of the RF shielding effectiveness upon the surface resistance or thickness of a copper or silver film coating on a plastic substrate is calculated numerically by means of multireflection transmission-line theory over the frequency range of 100 MHz to 30 GHz. The light transmansmittance is determined by using the optical properties of the copper or silver film and plastic substrate. An optimum condition between the RF shielding effectiveness and the light transmittance is established for the copper or silver film coating on a plastic substrate.
<i>Chlamydia trachomatis</i>Strains and Virulence: Rethinking Links to Infection Prevalence and Disease Severity (2010)

An unanswered question concerning prevalence and disease severity of Chlamydia trachomatis genital infection is whether more prevalent strains or strains more likely to cause serious disease complications are causally associated with specific virulence attributes. The major method for distinguishing chlamydial strains is based on differences in the major outer membrane protein (MOMP). A subset of MOMP serovars (D and E serovars) are easily the most prevalent strains identified worldwide, but MOMP serovar and genovar analyses have not yielded consistent strain-dependent virulence distinctions. Expansion of the definitions of chlamydial strains beyond the MOMP paradigm are needed to better understand virulence properties for this pathogen and how these properties reflect disease severity. Substantive genetic and phenotypic differences have emerged for the 2 major C. trachomatis pathobiotypes associated with either trachoma or sexually transmitted diseases, but differences within the sexually transmitted disease group have not yielded reliable disease severity attributes. A number of candidate virulence factors have been identified, including the polymorphic outer membrane autotransporter family of proteins, the putative large cytotoxin, type III secretion effectors, stress response proteins, and proteins or other regulatory factors produced by the cryptic plasmid. Continued work on development of a chlamydial gene transfer system and application of genomic approaches to large collections of clinical isolates will be required to associate key chlamydial virulence factors with prevalence and disease severity in a definitive way.
Effects of ZnO buffer layers on the fabrication of GaN films using pulsed laser deposition (2007)

GaN thin films were deposited on Si (111) substrates using ZnO buffer layers by pulsed laser deposition of a GaN target in a nitrogen atmosphere. High-quality GaN thin films were obtained after annealing at 950 °C for 15 min in a NH3 atmosphere. The crystalline quality, composition, and surface morphology of the films were characterized by x-ray diffraction, Fourier transform infrared spectroscopy, and atomic force microscopy. Through analysis of the measured results, a conclusion was drawn that ZnO buffer layers and their crystalline quality affected the structural properties (crystalline quality, composition, and surface morphology) of GaN films. Crystalline ZnO buffer layers improved nucleation and growth of GaN films. Zn–O bonds are destroyed when the GaN films are annealed in ammonia (NH3) ambience; a few O and Zn atoms depart from their positions, while N and Ga atoms fill in the empty positions and form a hexagonal structure of a special component. The structure is propitious to the epitaxial growth of GaN, while the motion of atoms gives the grains of GaN more chances to move and form Ga–N bonds. The annealing time markedly affects the preparation of GaN films and the least annealing time is 15 min under our experimental conditions.
Semantic‐Preserving Word Clouds by Seam Carving (2011)

Abstract Word clouds are proliferating on the Internet and have received much attention in visual analytics. Although word clouds can help users understand the major content of a document collection quickly, their ability to visually compare documents is limited. This paper introduces a new method to create semantic‐preserving word clouds by leveraging tailored seam carving, a well‐established content‐aware image resizing operator. The method can optimize a word cloud layout by removing a left‐to‐right or top‐to‐bottom seam iteratively and gracefully from the layout. Each seam is a connected path of low energy regions determined by a Gaussian‐based energy function. With seam carving, we can pack the word cloud compactly and effectively, while preserving its overall semantic structure. Furthermore, we design a set of interactive visualization techniques for the created word clouds to facilitate visual text analysis and comparison. Case studies are conducted to demonstrate the effectiveness and usefulness of our techniques.
Digestive utilization of novel biodegradable plastic in growing pigs (1999)

Two experiments were carried out to determine the effect of poly(3-hydroxybutyrateco-3-hydroxyvalerate) (PHBV) and polycaprolactone (PCL) inclusion (Exp. 1), and of PHBV pre- treatment with sodium hydroxide (Exp. 2) on the digestibility of diets in growing pigs. In Exp. 1, eight male castrated Large White pigs (initial liveweight 24 kg; final liveweight 64 kg) received rationed amounts of a cereal-based diet containing 0 (C) or 8 % of either barley straw meal (S), PHBV (P/) or PCL (P2) in a replicated double 4 x 4 Latin square design. In Exp. 2, ten animals (23-84 kg liveweight) were fed the same standard diet including 0 (C), 10 or 20 % of either untreated (PIO, P20) or pretreated PHBV (tP 10 and tP20) in a replicated double 5 x 5 Latin square design. Inclusion of untreated biodegradable plastic and straw negatively influenced (P < 0.01) organic matter and energy digestibility. Untreated PHBV was poorly digested. The analogy of data indicates that PCL was even less digested. Untreated plastic can be considered as undegradable material in the gastrointestinal tract of pigs. In contrast, pretreatment (Exp. 2) significantly increased (P < 0.07) PHBV, organic matter and energy digestibility. Independently of the amount included, 37 % of pretreated PHBV was digested on average. ( © Elsevier / Inra) pig / straw / biodegradable plastic / sodium hydroxide / digestibility Rsum — Utilisation digestive de nouveaux plastiques biodgradables chez les porcs en crois- sance. Deux expriences ont t ralises chez des porcs en croissance pour dterminer, d'une part la digestibilit fcale de nouveaux plastiques biodgradables non traits tels le polycaprolactone (PCL) et le poly[3-hydroxybutyrate-co-3-hydroxyvalerate] (PHBV), d'autre part tudier l'effet d'un prtraitement chimique et d'une substitution chelonne avec le PHBV. Dans l'exprience 1 (Exp. 1), huit mles castrs Large White (poids initial : 24 kg -poids final : 63 kg) ont reu une ration base de creales contenant 0 (C) ou 8 % de paille broye (S), de PHBV (PI) ou de PCL (P2) selon un dispositif en carr latin 4 x 4 rpt. Pour l'exprience 2 (Exp. 2) la mme ration de base incluant 0 (C), 10 ou 20 % de PHBV prtrait (tP 10, tP20) ou non (P/0, P20) a t distribue
Developmental expression and nutritional regulation of a zebrafish gene homologous to mammalian microsomal triglyceride transfer protein large subunit (2004)

The microsomal triglyceride transfer protein (MTP) large subunit is required for the assembly and secretion of apolipoprotein B-containing lipoproteins. We have found a zebrafish mtp homologous gene coding a protein with 54% identity with human MTP large subunit with the most conserved regions distributed in the corresponding predicted alpha-helical and C- and A-sheet domains. In situ hybridizations showed that zebrafish mtp transcripts were distributed in the yolk syncytial layer during early embryogenesis and in anterior intestine and liver from 48 hr postfertilization onward. Real-time quantitative RT-PCR confirmed the developmental regulation and tissue-specificity of mtp expression. A significant pretranslational up-regulation of mtp expression was observed in the anterior intestine after feeding. The nutritional regulation of zebrafish mtp expression observed in the anterior intestine supports the notion that this protein, similar to mammalian MTP large subunit, could be a factor implicated directly or indirectly in large lipid droplets accumulation observed in the fish enterocyte after feeding.
Estimates of Error Rates for Codes on Burst-Noise Channels (1963)

The error structure on communication channels used for data transmission may be so complex as to preclude the feasibility of accurately predicting the performance of given codes when employed on these channels. Use of an approximate error rate as an estimate of performance allows the complex statistics of errors to be reduced to a manageable table of parameters and used in an economical evaluation of large collections of error detecting codes. Exemplary evaluations of error detecting codes on the switched telephone network are included in this paper. On channels which may be represented by Gilbert's model of a burst-noise channel, the probabilities of error or of retransmission may be calculated without approximations for both error correcting and error detecting codes
The Role of Cell Adhesion Molecules in Prostate Development and Carcinogenesis (2001)

In the multicellular organism, the formation and maintenance of the structure and function of tissues require specific communication and regulated three-dimensional organization between each cell type and extracellular signals. Cell adhesion molecules (CAMs) have been shown to be one of the key components controlling embryonic development and organization of multicellular organisms. In contrast, aberrant expression of CAMs is often associated with tumorigenesis in many neoplasms. For example, decreased expression of E-cadherin, which is predominantly expressed in epithelial cells, is associated with the progression of several types of neoplasm (6,15,19,44) Giancotti and Ruoslahti (21) have demonstrated that increasing expression of α5β1 integrin by gene transfection can reduce tumorigenicity of Chinese hamster ovary cells in vivo.
Contact research strategy for emerging molybdenum disulfide and other two-dimensional field-effect transistors (2014)

Layered two-dimensional (2D) semiconducting transition metal dichalcogenides (TMDs) have been widely isolated, synthesized, and characterized recently. Numerous 2D materials are identified as the potential candidates as channel materials for future thin film technology due to their high mobility and the exhibiting bandgaps. While many TMD filed-effect transistors (FETs) have been widely demonstrated along with a significant progress to clearly understand the device physics, large contact resistance at metal/semiconductor interface still remain a challenge. From 2D device research point of view, how to minimize the Schottky barrier effects on contacts thus reduce the contact resistance of metals on 2D materials is very critical for the further development of the field. Here, we present a review of contact research on molybdenum disulfide and other TMD FETs from the fundamental understanding of metal-semiconductor interfaces on 2D materials. A clear contact research strategy on 2D semiconducting materials is developed for future high-performance 2D FETs with aggressively scaled dimensions.
DOCENCIA Y APRENDIZAJE ACTIVOS (1988)

INVITO LA ENEP IZTACALA AL DOCTOR GILLES FERRY A IMPARTIR EL CURSO SOBRE GRUPOS E INVESTIGACION DOCENTE.
Language in autism and specific language impairment: Where are the links? (2008)

It has been suggested that language impairment in autism is behaviorally, neurobiologically, and etiologically related to specific language impairment (SLI). In this article, the authors review evidence at each level and argue that the vast majority of data does not support the view that language impairment in autism can be explained in terms of comorbid SLI. The authors make recommendations for how this debate might be resolved and suggest a shift in research focus. They recommend that researchers concentrate on those aspects of language impairment that predominate in each disorder rather than on those comparatively small areas of potential overlap.
A fast algorithm for optimal satellite spot beam pointing (1996)

An optimal algorithm for pointing a steerable satellite spot beam is described. The optimality criterion considered is maximization of the number of Earth terminals covered. The computation time of the algorithm has been compared with a brute force algorithm through a series of Monte Carlo trials.
Antiestrogen-Binding Sites in 7,12-Dimethylbenz(a)anthracene-Induced Rat Mammary Tumors: Relation to Growth (1990)

We have detected specific high-affinity binding sites for nonsteroidal antiestrogens in 98% of 7,12-dimethylbenz(a)anthracene-induced rat mammary tumors. Since recent studies have suggested that these binding sites may be involved in the regulation of cell growth and proliferation, we attempted to define a possible relationship between the growth of these hormone-dependent tumors and their antiestrogen-binding site content. Rats bearing such tumors were either treated with haloperidol (to increase prolactin secretion and stimulate tumor growth) or oophorectomized (to reduce circulating estrogen concentration and suppress tumor growth). Compared with controls, haloperidol treatment clearly enhanced tumor growth while oophorectomy induced tumor regression, but neither procedure had any effect on the antiestrogen-binding site concentration. Furthermore, tumors which responded to endocrine manipulation had similar antiestrogen-binding site concentrations as tumors which did not respond. We conclude that (1) the alterations in tumor growth induced by these endocrine manipulations are probably not mediated through a change in antiestrogen-binding site concentration, and (2) the tumor concentration of these binding sites is not under estrogen or prolactin control.