gebhart/patrepeval huggingface dataset:
Wavelet Transform-Based <sc>EMI</sc> Noise Mitigation in Power Converter Topologies (2016)

This paper proposes a novel wavelet transform-based approach for electromagnetic interference (EMI) noise mitigation in power electronics topologies. The switching action of power semiconductor devices generates EMI in power converter modules which exceeds the noise limit set by the regulation of CISPR11. In order to cancel the EMI noise, the wavelet transform-based time-frequency localization approach has been used for generating a noise cancellation signal. The effectiveness of the proposed method has been evaluated in the terms of signal-to-noise ratio (SNR). Further, the effect of variance of the noise amplitude has been taken into consideration on the SNR. A relationship between the standard deviation, which is proportional to square root of the variance of the signal, and the SNR has been established. The proposed method has been implemented on the different power electronics topologies such as buck converter, boost converter, three-phase voltage source inverter, and Z-source inverter-based ac drive. The proposed method achieves the reduction of noise level below the safe limit set by CISPR11.
Entertainment lighting control network standardization to support VLC services (2013)

VLC technology is receiving increasing attention in research and product development these days because high lumen/watt LEDs are becoming the dominant sources for artificial lighting. Successful VLC data transmission from luminaires requires that the data first be moved to the luminaires over a backbone network. This article addresses the lighting control network as a backbone for VLC services and describes a standards-drafting project, designated BSR E1.45, for entertainment lighting control to support the transmission of data for VLC from luminaires. E1.45 specifies a data frame format that can coexist with ANSI E1.11 messages on lighting control network, and thus deliver VLC data to luminaires for transmission from those luminaires.
Short-range multi-terminal satellite crosslink communications (2003)

The authors introduce a concept for integrating several small lightweight crosslink communication terminals to provide the desired simultaneous communication capability. A suite of three laser communication crosslink terminals which have an impact on satellite size, weight, and power is discussed. The total three terminal suite weight and power are given as 28 lb and 58 W maximum, respectively. The design provides 1-Mb/s point-to-point connectivity over a 9000-km range with a 10/sup -6/ bit error rate, and includes subsystem model control. The communication channel, link acquisition, and cooperative tracking of the optical energy are discussed. The major components are identified, and the technology risk associated with each is assessed. Risk is shown to be minimal.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Acute and Long-Term Effects of Gastrin on Muscle and Bone Calcium Uptake in Rats. (1995)

It has previously been proposed that the hypocalcemic action of gastrin was mediated by a gastric peptide gastrocalcin which enhanced bone uptake of calcium (Ca). The present study, thus, aimed to reconfirm the effect of gastrin on muscle and bone Ca uptake and to evaluate a possible direct effect of gastrin on tissue Ca uptake. First, we showed that human and rat gastrin (100 microgram /100 g body weight (bw), s.c.) acutely increased uptake of intragastrically administered 45 Ca by the tibia and femur. Interestingly, human gastrin was more effective and also enhanced 45 Ca uptake by the gastrocnemius muscle. In order to find out whether gastrin could act directly on bone, 10 microgram of rat gastrin /100 g bw and 45 Ca were injected into the right femoral artery supplying the right leg while the left leg received normal saline and an equal amount of 45 Ca. At 30 min, the right gastrocnemius muscle and femur were found to contain 168% and 162%, respectively, more 45 Ca than the left leg. In contrast, daily administration of 25 microgram of rat gastrins /100 g bw, s.c., for 2 weeks had no effect on muscle or bone total Ca content while the content of 45 Ca given on days 12 and 13 was lower in the tibia and femur of gastrin-treated rats. It could be concluded that gastrin transiently enhanced Ca uptake by muscle and bone. However, two-week treatment with gastrin appeared to accelerate the bone turnover rate i.e., enhanced uptake and release of calcium, so that there were not no net changes in bone total Ca content at the end of the experimental period.
Ketone aus aromatischen Kohlenwasserstoffen und Säurechloriden (1873)

Der Eine ron uns hat friiher zusamnien mit Hrn.K o l l a r i t s grzeigt I ) , dass aromatisclie Sauren und Kohlenwasserstoffe, wenn sie riiit wasserentziehenden Agentien erliitzt werden, direct Ketone liefern.Diese Reaction legte Versuche nahe, urn Ketone aucb aus SBorechloriden und Kohlenwasserstoffen zu erhalten. Da eine directrWechselwirkung nicht stattfindet, so bot, nach den vorliegenden Erfahrurigen
Asymmetric Organocatalytic Conjugate Addition of Diarylphosphane Oxides to Chalcones (2010)

Abstract The first example of a convenient and enantioselective asymmetric conjugate addition of diarylphosphane oxides to chalcones is reported. By using commercially available dihydroquinine as the organocatalyst and diphenylphosphane oxide as the nucleophile, the adducts were isolated in high yield and up to 89 % ee . The final adducts can be easily recrystallized to enantiopure material.
Simple and efficient method for isolation and cultivation of endoscopically obtained human colonocytes (2003)

Few comparative and validated reports exist on the isolation and growth of colonoscopically obtained colonic epithelium. The aim of this study was to develop and validate a simple method for the cultivation of colonoscopically obtained colonocytes. Forty patients, who underwent routine colonoscopy and where the diagnosis of irritable bowel syndrome was later reached, were included. Seven colon biopsies were taken and incubated at varying time periods of 10-120 min and temperatures of 4-37°C in a chelating buffer. The epithelium was then harvested and cultivated under three different conditions: 1) on a collagen coating, 2) embedded in a collagen gel, or 3) embedded in a gel put on a porous well insert. The effect of conditioned medium (CM), insulin, transferrin, selenium, and the oxygen content was assessed. Viability was tested by the metabolic dimethylthiazol-diphenyl-tetrazolium bromide assay, by flowcytometry, by phase contrast microscopy, and by transmission electron microscopy. Incubation at 21°C for 75 min gave an optimal yield of 3 × 10 6 (2.0-3.8 × 10 6 ) viable epithelial cells in intact crypts per seven biopsies. Embedding of crypts in a collagen gel put on a porous membrane was superior to the other methods applied [ P < 0.003; median viability 71% (62-100%) compared with preculture values] after 24 h, which was a 160% increase in viability compared with coat-cultivated cells. CM had similar viability supporting effects to FCS. Other supplements had no effects. A simple method is presented, which makes cultivation of colonocytes obtained at endoscopy possible for up to 72 h.
High-speed current limiters (1965)

Current limiters based on the high-field saturation of electron-drift velocity in germanium have been fabricated by making two closely spaced ohmic contacts to a surface n-layer diffused into Ge. In operation, current flows from contact to contact through the n-layer. Current saturation begins at a voltage V_{s} = E_{s} d , where d is the contact spacing and E s is the field for saturation of electron drift velocity. Generally, in order to work at reasonable signal levels (volts and milliamperes) a structure small in all dimensions is required. A diffused-layer structure provides a convenient way of meeting this requirement and, at the same time, has, first, a high surface-to-volume ratio which facilitates heat removal and, second, a p-n junction which minimizes conductivity modulation by removing avalanche-generated holes. Limiters with d \cong 2 µ, and 10 µ × 10 µ contacts, were fabricated on Sb-diffused layers of 103-Ω sheet resistance and ∼1017cm-3surface concentration. Limiting current was ∼2.5 mA and limiting extended from ∼2 to 16 V. The conductance in the limiting range was ∼40 µmho and a contact-to-contact capacitance was ∼0.1 pF.
<i>Staphylococcus aureus</i>Capsular Polysaccharides (2004)

Serotype 5 and 8 capsular polysaccharides predominate among clinical isolates of Staphylococcus aureus. The results of experiments in animal models of infection have revealed that staphylococcal capsules are important in the pathogenesis of S. aureus infections. The capsule enhances staphylococcal virulence by impeding phagocytosis, resulting in bacterial persistence in the bloodstream of infected hosts. S. aureus capsules also promote abscess formation in rats. Although the capsule has been shown to modulate S. aureus adherence to endothelial surfaces in vitro, animal studies suggest that it also promotes bacterial colonization and persistence on mucosal surfaces. S. aureus capsular antigens are surface associated, limited in antigenic specificity, and highly conserved among clinical isolates. With the emergence of vancomycin-resistant S. aureus in the United States in 2002, new strategies are needed to combat staphylococcal infections. Purified serotype 5 and 8 capsular polysaccharides offer promise as target antigens for a vaccine to prevent staphylococcal infections, although the inclusion of other antigens is likely to be essential in the development of an effective S. aureus vaccine. The genetics and mechanisms of capsule biosynthesis are complex, and much work remains to enhance our understanding of capsule biosynthesis and its regulation.
Low frequency magnetoresistive noise in spin-valve structures (2009)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation A. Ozbay, A. Gokce, T. Flanagan, R. A. Stearrett, E. R. Nowak, C. Nordman; Low frequency magnetoresistive noise in spin-valve structures. Appl. Phys. Lett. 18 May 2009; 94 (20): 202506. https://doi.org/10.1063/1.3139067 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 ContentAIP Publishing PortfolioApplied Physics Letters Search Advanced Search |Citation Search
[IgM-ELISA for diagnosis of schistosomiasis mansoni in low endemic areas]. (2003)

An immunoenzymatic method for the detection of IgM antibodies (IgM-ELISA) against a fraction of Schistosoma mansoni adult worm antigen, soluble in trichloroacetic acid (TCA-soluble fraction), was evaluated for epidemiological purposes in low endemic areas for schistosomiasis. Blood samples on filter paper were collected from a population living in the municipality of Pedro de Toledo, São Paulo State, and submitted to IgM-ELISA. The results were compared to those obtained by the IgM-immunofluorescence test (IgM-IFT) and the Kato-Katz parasitological method. Positive rates of 36.8%, 33.5%, and 1.6% were obtained respectively by the IgM-ELISA, IgM-IFT, and Kato-Katz methods. The geometric mean obtained by the parasitological method was 40.9 eggs per gram of feces (epg). The nearly perfect agreement observed between the two serological tests (Kappa index of 0,89) indicates good diagnostic performance by the evaluated test. IgM-ELISA is a potentially useful method for diagnosis of schistosomiasis in individuals with low worm burden.
Dynamic Framed Aspects for Dynamic Software Evolution (2004)

Software evolution is an inevitable process when developing a system of any notable size and is the most costly stage in the life cycle of a system. Automating parts of this process will reduce the resources required to carry out this stage of development. We aim to develop a framework that achieves this automated evolution by using Dynamic AOP to encapsulate these evolutionary changes and allow them to be applied dynamically at runtime. However, a problem with this is being able to reuse these aspects in different systems and scenarios. We propose the use of framed aspects to parameterise the aspects to generalise them so they can then be customised for a specific use.
Design and Implementation of Efficient Streaming Deblocking and SAO Filter for HEVC Decoder (2018)

This paper aims to design an efficient mixed serial five-stage pipeline processing hardware architecture of deblocking filter (DBF) and sample adaptive offset (SAO) filter for high efficiency video coding decoder. The proposed hardware is designed to increase the throughput and reduce the number of clock cycles by processing the pixels in a stream of 4 × 36 samples in which edge filters are applied vertically in a parallel fashion for processing of luma/chroma samples. Subsequently these filtered pixels are transposed and reprocessed through vertical filter for horizontal filtering in a pipeline fashion. Finally, the filtered block transposed back to the original orientation and forwarded to a three-stage pipeline SAO filter. The proposed architecture is implemented in field programmable gate array and application specific integrated circuit platform using 90-nm library. Experimental results illustrate that the proposed DBF and SAO architecture decreases the processing cycles (172) required for processing each 64 × 64 or large coding unit compared with the state-of-the-art literature with the increase of gate count (593.32K) including memory. The results show that the throughput of the proposed filter can successfully decode ultrahigh definition video sequences at 200 frames/s at 341 MHz.
Evidence for radical species as intermediates in cadmium/zinc-metallothionein-dependent DNA damage in vitro (1994)

Toxicologic data on cadmium (Cd) indicate that intracellular metallothionein (MT) is protective for Cd exposure, whereas extracellular Cd-containing MT might be toxic.Moreover, Cd is suspected to be a carcinogen though the underlying mechanism is not known.Here we report on the genotoxic activity of cadmium/zinc-metallothionein (Cd/Zn-MT) in a cell-free test system: a concentration-dependent increase in DNA strand breaks was detected with increasing doses of Cd/Zn-MT, whereas no DNA strand breaks were observed in the presence of heat-denatured MT or Cd or Zn ions alone.Modifications of native Cd/Zn-MT by the metal ion-chelating agent EDTA or the sulfhydryl group alkylating agents N-ethylmaleimide and iodoacetamide suggest that the various cysteine residues of MT, together with the attached heavy metal ions, may be involved in the DNA cleavage reaction.Furthermore, DNA strand breaks caused by Cd/Zn-MT seem more likely to be random than sequence-or base-specific.Results from experiments with radical scavengers and electron spin resonance spectroscopy point to radical species formed by Cd/Zn-MT as mediators of the DNA damage.Thus, the actual activity of Cd/Zn-MT-whether protective or damaging -appears to depend on various parameters governed by the extra-and intracellular environment.-
Fractionation of Straight-Run Pennsylvania Gasoline (1932)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFractionation of Straight-Run Pennsylvania GasolineM. R. FenskeCite this: Ind. Eng. Chem. 1932, 24, 5, 482–485Publication Date (Print):May 1, 1932Publication History Published online1 May 2002Published inissue 1 May 1932https://pubs.acs.org/doi/10.1021/ie50269a003https://doi.org/10.1021/ie50269a003research-articleACS PublicationsRequest reuse permissionsArticle Views1029Altmetric-Citations256LEARN 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 options Get e-Alerts
Erythropoietin after a century of research: younger than ever (2007)

In the light of the enthusiasm regarding the use of recombinant human erythropoietin (Epo) and its analogues for treatment of the anaemias of chronic renal failure and malignancies it is worth remembering that today's success has been based on a century of laborious research. The concept of the humoral regulation of haematopoiesis was first formulated in 1906. The term 'erythropoietin' for the erythropoiesis-stimulating hormone was introduced in 1948. Native human Epo was isolated in 1977 and its gene cloned in 1985. During the last 15 yr, major progress has been made in identifying the molecules controlling Epo gene expression, primarily the hypoxia-inducible transcription factors (HIF) that are regulated by specific O2 and oxoglutarate requiring Fe2+-containing dioxygenases. With respect to the action of Epo, its dimeric receptor (Epo-R) has been characterised and shown to signal through protein kinases, anti-apoptotic proteins and transcription factors. The demonstration of Epo-R in non-haematopoietic tissues indicates that Epo is a pleiotropic viability and growth factor. The neuroprotective and cardioprotective potentials of Epo are reviewed with a focus on clinical research. In addition, studies utilising the Epo derivatives with prolonged half-life, peptidic and non-peptidic Epo mimetics, orally active drugs stimulating endogenous Epo production and Epo gene transfer are reviewed.
Strategic Decision-making, Group Behavior, and Public Relations Strategies (2005)

As a boundary spanning function in organizations, public relations can enhance strategic decision-making by introducing relevant information that addresses decision-making consequences on stakeholders to the process. The premise for the study was that effective communication that attends to certain communication aspects of decision-making through organizational strategic decision-making initiatives can enhance the likelihood of more effective decisions. The method of investigation was active interviews. This method was considered most appropriate to acquire an understanding of senior executives' interpretation and description of four strategic decision-making events that were conducted in the U.S. Coast Guard during the 1990s. The results of this study revealed several patterns or themes associated with more effective strategic decision-making. First, organizations that view decision-making as more continuous and connected to other important goals find their efforts to be more effective. Second, transparency is an important quality in strategic decision-making because it leads to higher levels of trust among participants. Greater participation by stakeholders also enhances the likelihood of more effective decision-making. Robust alternatives resulting from an inquiry-based approach rather than an advocacy-based approach can contribute to more effective decisions. Relationships between organizations and stakeholders that possess higher degrees of trust, familiarity, commitment, loyalty, cooperation, transparency persistence, and dispersed power contribute to more effective decision-making. Finally, organizations that seek to minimize affective conflict and maximize cognitive conflict among all decision-making participants during the process can improve the likelihood of better decision-making.
Business Intelligence: A Rapidly Growing Option through Web Mining (2012)

The World Wide Web is a popular and interactive medium to distribute information in this scenario.
A mixed-signal framework and standard for high-frequency timing measurements (2002)

Timing measurements in computer and communication systems operating at gigahertz frequencies demand accuracy and repeatability not currently available from automatic test equipment. This paper describes a framework to model resources of existing tester, test instrument, on-chip mixed-signal measurement circuits, and the device-under-test (DUT). Standardized test methods, together with these test models, permit the inter-operability of various test systems in accurate timing measurements while reducing test cost, enhancing correlation between different test methods, and leading to a better understanding of the high-frequency effects of the entire test set-up from the automatic test equipment to the test interface to the DUT itself.
La política del espacio (2017)

En el presente articulo se analiza la relacion entre lo social y lo espacial, pues es esta relacion la que le da significado al propio espacio en el que se constituye el poder. Se analizan posiciones teoricas en las que se discuten categorias como dominacion, jerarquia, resistencia, negociacion, performance; todas estas enmarcadas en un espacio, el cual se vuelve un recurso para reforzar y ejercer las relaciones de poder. Se incorpora al genero para evidenciar la profundidad de ese ejercicio y reforzamiento. Finalmente se propone dirigir la mirada al poder asociativo, el cual representa una forma distinta de organizarse en el que no hay un esquema jerarquico, sino que se trata de identificar un proposito comun y potenciar el poder de los actores en conjunto para lograrlo.
Novel variable-temperature chuck for use in the detection of deep levels in processed semiconductor wafers (1979)

This paper describes the design, construction, and characterization of a variable-temperature wafer apparatus for use in the detection of electrically active defects which produce deep levels in the band gap of silicon. In its present form, the wafer chuck can heat and cool wafers as large as 51 mm in diameter over the temperature range from -196 degrees to 350 degrees C. Heating rates as high as 7 degrees C/s have been achieved. Sensitivity for electrical measurements is sufficient to allow current measurements as low as 0.2 pA or capacitance changes (1 MHz) as small as 5 fF. The use of this apparatus is illustrated by wafer mapping the gold defect density in diodes fabricated across a silicon wafer.
Place and Space (2006)

Increasing drug use among rural African American women and its effect on children warrants investigation. This article describes drug-use locations of rural African American women who use cocaine and construct their lives to conceal it from children. During 4 years, a 30-respondent ethnography was conducted. Data from in-depth interviews and field notes were analyzed for recurrent themes and patterns of drug-use location using NVivo. Most respondents with children used most often outside their households. One third (n = 10) used within their households when children were away or in designated spaces off limits to children. More respondents (n = 11) without children at home used in non-designated spaces; in contrast, few respondents (n = 2) with children at home used in non-designated spaces within the household. Most respondents thought they were successful at concealing their cocaine use. Implications for choice of space and place of drug use for themselves and their children are discussed.