gebhart/patrepeval huggingface dataset:
Amino acid sequence studies on factor XIII and the peptide released during its activation by thrombin (1974)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAmino acid sequence studies on factor XIII and the peptide released during its activation by thrombinTakashi Takagi and Russell F. DoolittleCite this: Biochemistry 1974, 13, 4, 750–756Publication Date (Print):February 1, 1974Publication History Published online1 May 2002Published inissue 1 February 1974https://pubs.acs.org/doi/10.1021/bi00701a018https://doi.org/10.1021/bi00701a018research-articleACS PublicationsRequest reuse permissionsArticle Views185Altmetric-Citations179LEARN 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
Lightweight solar panel development (1971)

Preliminary design, fabrication, and test of lightweight solar panel of built-up beryllium structure with 29 sq ft active cell area
On the use of visual information for improving audio-based speaker recognition. (1999)

Audio-based speaker identification degrades severely when there is a mismatch between training and test conditions either due to channel or noise. In this paper, we explore various techniques to fuse video based speaker identification with audio-based speaker identification to improve the performance under mismatch conditions.
Hypertension update: highlights from the 1993 national report. (1993)

This article summarizes the highlights of the 1993 Report of the Joint National Committee on Detection, Evaluation, and Treatment of High Blood Pressure. These guidelines provide nurses and patients with important information about therapies for hypertension (e.g. lifestyle modification and pharmacologic therapy); treatment for specific populations (e.g. black, young, pregnant, and elderly patients); and, factors which cause hypertension (e.g. cocaine, lithotripsy, cyclosporine, and erythropoietin). This article addresses antihypertensive drugs and provides an algorithm for the treatment of hypertension. The implications for nurses in view of these new guidelines are also presented.
A Secure Proxy-Based Cross-Domain Communication for Web Mashups (2011)

A web mashup is a web application that integrates content from heterogeneous sources to provide users with a more integrated and seamless browsing experience. Client-side mashups differ from server-side mashups in that the content is integrated in the browser using the client-side scripts. However, the legacy same origin policy (SOP) implemented by the browsers cannot provide a flexible client-side communication mechanism to exchange information between different sources. To address this problem, we propose a secure client-side cross-domain communication model facilitated by a trusted proxy and the HTML 5 post Message method. The proxy-based model supports fine-grained access control for elements that belong to different sources in web mashups, and the design guarantees the confidentiality, integrity, and authenticity during cross-domain communications. The proxy-based design also allows users to browse mashups without installing browser plug-ins. For mashups developers, the provided API minimizes the amount of code modification. The results of experiments demonstrate that the overhead in-curred by our proxy model is low and reasonable.
Vertical distribution of elements in cells and matrix of epiphyseal growth plate cartilage determined by quantitative electron probe analysis. (1985)

Quantitative electron probe analysis was performed on chick epiphyseal growth cartilage prepared by two anhydrous methods, ultrathin cryosections and freeze-dried epoxy-embedded tissue. Levels of Na, Mg, P, S, Cl, K, and Ca were determined in cytoplasm, mitochondria, extracellular matrix, matrix vesicles, and mineral nodules in four zones of the cartilage--proliferative, prehypertrophic, early hypertrophic, and early calcification. The exceptionally high levels of Na and K (up to 550 and 200 mmol/kg wet wt, respectively) found in the matrix are believed to be largely bound to fixed anions. Within cells, Na was higher than K (140 versus 20-34 mmol/kg wet wt), a condition that may reflect hypoxia. Ca and P were low in cells and unmineralized matrix. Ca and P were high in mitochondrial granules of the early hypertrophic zone and diminished in amount in the calcifying zone; the converse occurred in matrix vesicles. Mg was low to undetectable except in heavily mineralized structures (i.e., mitochondrial granules, matrix vesicles, and mineral nodules). S levels were high in matrix (approximately 400 mmol/kg wet wt) and increased slightly with maturation. The amount of S present greatly exceeds Ca levels and implies that sulfate, the predominant form of sulfur in proteoglycans, may serve as an ion-exchange mechanism for the passage of Ca through the matrix to sites where Ca and phosphate are precipitated.
Polarization-sensitive full-field optical coherence tomography (2007)

We present a polarization-sensitive full-field optical coherence tomography system that can produce high-resolution images of the linear retardance and reflectivity properties of biological media. En face images can be delivered at a frame rate of 3.5 Hz by combination of interferometric images acquired by two CCD cameras in an interference microscope illuminated with a tungsten halogen lamp. Isotropic spatial resolution of approximately 1.0 microm is achieved. The technique is demonstrated on ex vivo muscle tissues.
Piezoelectric microphone with on-chip CMOS circuits (1993)

An IC-processed piezoelectric microphone with on-chip, large-scale integrated (LSI) CMOS circuits has been designed, fabricated, and tested in a joint, interactive process between a commercial CMOS foundry and a university micromachining facility. The 2500*2500*3.5 mu m/sup 3/ microphone has a piezoelectric ZnO layer on a supporting low-pressure chemical-vapor-deposited (LPCVD), silicon-rich, silicon nitride layer. The optimum residual-stress-compensation scheme for maximizing microphone sensitivity produces a slightly buckled microphone diaphragm. A model for the sensitivity dependence of device operation to residual stress is confirmed by applying external strain. The packaged microphone has a resonant frequency of 18 kHz, a quality factor Q approximately=40, and an unamplified sensitivity of 0.92 mV/Pa. Differential amplifiers provide 49 dB gain with 13 mu V A-weighted noise at the input.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Chiral methacrylic polymers containing permanent dipole azobenzene chromophores. <sup>13</sup>C NMR spectra and photochromic properties (1997)

Abstract Dynamics in solution and photochromic properties of radical copolymers of ( S )‐4‐[ N ‐(2‐methacryloyloxyethyl)‐ N ‐(2‐methylbutyl)]amino‐4′‐cyanoazobenzene with butyl methacrylate were investigated. 13 C NMR and 2D heteronuclear correlated (HETCOR) spectroscopy allowed assignment of 13 C NMR signals and evaluation of main chain tacticity. 13 C relaxation times T 1 evidenced a rather limited mobility of azobenzene chromophores. Mobility increases with increasing content of butyl methacrylate units, that acts as an internal plasticizer. The limited mobility of the spacer between azobenzene and methacrylate groups is attributed to an interaction between carbonyl oxygen and aminic nitrogen stabilized by the internal charge transfer from the amino to the cyano group. Trans to cis photoisomerization rates turned out to be independent of molecular weight and chemical composition of the investigated photochromic polymers, whereas cis to trans thermal isomerization rates increase with the content of aromatic units. These data suggest that photo‐ and thermal isomerization processes imply an in‐plane inversion and an out‐of‐plane rotation of one of the phenyl rings of the azobenzene chromophores, respectively. Preliminary second harmonic generation measurements indicate that the investigated polymers are endowed with significant non‐linear optical properties.
On compensating nonlinear distortions of an OFDM system using an efficient adaptive predistorter (1999)

This paper presents an efficient adaptive predistortion technique compensating for nonlinear distortions caused by a high-power amplifier (HPA) cascaded with a linear filter in an OFDM system. In the proposed approach, the memoryless HPA, preceded by a linear filter with memory in OFDM systems, is modeled by the Wiener system, which is then precompensated by the proposed adaptive predistorter with a minimum number of filter taps. It is confirmed by computer simulation that the proposed approach produces a faster convergence speed than the previous adaptive predistortion technique, and provides a small output backoff as low as 5.5 dB for an OFDM system employing an HPA with a linear filter.
Star-Shaped Oligothiophenes for Solution-Processible Organic Electronics:  Flexible Aliphatic Spacers Approach (2006)

The design, synthesis, and properties of a novel, solution-processible organic semiconductor based on star-shaped oligothiophenes linked through flexible aliphatic branches to a carbosilane core are described. This four-arm dendrimer-like molecule not only forms smooth thin films on large surfaces but also shows improved monolayer formation compared to its linear prototype, α,α‘-dihexylquaterthiophene (Hex-4T-Hex). For the new material, three different types of structural organization (nanowires and mono- and multilayers) were found, all of which are favorable for charge transport through the material in organic field-effect transistors. These processability and structural properties, in combination with high field-effect mobility, high current modulation, and a threshold voltage of ∼0 V, suggest that star-shaped oligothiophenes with carbosilane cores are a promising new class of semiconducting materials for use in flexible organic electronics.
Impact of different handling styles (good vs. aversive) on growth performance, behavior, and cortisol concentrations in beef cattle (2012)

Our objective was to determine effects of aggressive handling on growth performance, behavior, and cortisol concentrations in beef calves. Crossbred calves (313 Â± 4.7 kg; n = 54; 24 steers, 30 heifers) from a single herd were stratified by gender, body weight, and initial chute score, then allocated randomly to 1 of 6 pens. Each pen was randomly assigned to 1 of 2 handling treatments (good or adverse) applied on days 7, 35, 63, and 91. The objective of good treatment was to handle the calves quietly and gently to minimize stress. The objective of adverse treatment was to move the calves quickly and expose them to stimuli. Body weight, exit velocity, and chute scores (based on 5 point subjective scale) were recorded and salivary samples for cortisol were collected (4 calves/pen) on days 0, 7, 35, 63, and 91. Pen scores (5 point subjective scale) were recorded on days 12, 42, and 87. Data were statistically analyzed using a mixed model. Chute scores tended to be higher (more agitated) in the adverse treatment on day 7, but scores did not differ on subsequent days (treatment Ã— day; P = 0.06). Salivary cortisol concentrations on day 63 were greater in cattle on the adverse treatment (treatment Ã— day, P = 0.001). Body weight, exit velocity, and pen scores were not affected by treatment (P â‰¥ 0.24). While differences were observed, these cattle appeared to acclimate to short-term adverse handling which did not seem to dramatically affect performance or behavior of beef cattle.
Nine Secrets for Living with Judges (1992)

Marlowe Dimness descends from a prominent family long renowned in the political life of New South Wales. Unfortu? nately, before ascending the bench, Judge Dimness never entertained a passion for the practice of law. He neither knows the law nor has a quick grasp of it. However, he possesses other attributes of high quality?scrupulous hon? esty and unfailing courtesy. Jurors love him, and lawyers wish him well.
Formation of AgSn plates in Sn-Ag-Cu alloys and optimization of their alloy composition (2004)

Owing to activc R & D efforts, substantial progrcss toward a full transition to Pb-free soldering technolog? has been made reccntly. At present, the leading cwndidatc solders arc ncar-ternary eutectic Sn-Ag-Cu alloys for various soldering applications. The near-eutectic ternary Sn-Ag-Cu alloys yield three phases upon solidification, p-Sn Ag3Sn and CueSni. During solidification, the cquilibriuin eutectic tnnsfonnation is kinetically inhibited. Wlulc the Ag3Sn phase micleatcs with minimal undercooling. tlie p-Sn phase requires a hpical undercooling of I5 to 80 C for nucleation. As a consequence of tlus dispariy in tlie required undercooling. large. plate-like ABSn stmcturcs can grow rapidly within tlie liquid phasc. dining cooling, before the final solidification of solder joints. When large Ag3Sn plates are present in solder joints, they may adversely affect the mechanical behavior and possibly reduce tlic fatigue life of solder joints by providing a preferential crack prop7gation path along the interface betneen a large Ag3Sn plate and tlie p-Sn phase. In tlic present paper, an in-dcptli study to understand the formation of largc Ag3Sn plates in Sn-Ag-Cu solder balls and joints is reported. It is also demonstrated how large Ag& plate fonnation can be minimized in solder joints through optimizing their alloy compositions or controlling cooling rates.
Multimedia Annotation System for Intelligent Search* (2008)

In this paper we present an overview of the intelligent multimedia annotation and search system MetaOn. The core objective is to construct and integrate semantically rich metadata, extracted from documents and images, to facilitate intelligent search and analysis. The proposed MetaOn framework involves, ontology-based information extraction and data mining, semi-automatic construction of domain specific ontologies, content-based image indexing and retrieval, and metadata management. The Hellenic history has been chosen as a challenging application case study.
Effectiveness of multiple decoupling capacitors (1992)

The effectiveness of using the parallel combination of large-value and small-value capacitors to increase the frequency coverage of either one and overcome the effect of lead inductance is examined. Computed and experimental results are given that show this scheme is not significantly effective. The improvement at high frequencies is at most 6 dB over the use of only the large-value capacitance.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Constructing low-density parity-check codes with circulant matrices (2003)

This is a report on the authors' ongoing effort to implement low-density parity-check codes with iterative belief propagation decoding in a communication system. The system requires the codes to have block lengths from 1000 to 2000 bits. We describe two different methods of constructing the codes using: (1) a combination of random and circulant matrices, and (2) random and circulant matrices with constraints to control the number of low weight codewords. We illustrate the performances of the different constructions with simulations.
Polyamine-mediated inhibition of in-vitro cell proliferation is not due to acrolein. (1983)

The influence of acrolein or spermine on the viability and growth of phytohaemagglutinin-stimulated rat thymic lymphocytes in cultures supplemented with foetal calf serum have been investigated. Acrolein (greater than 20 microM) was cytotoxic; spermine had little effect on viability, but inhibited [3H]TdR incorporation at low concentrations (approximately 10 microM). Cells treated with greater than 8 microM acrolein 3 hr before stimulation exhibited irreversible inhibition of protein synthesis, whereas 50 microM spermine had no effect, even when cells were treated for 24 hr before stimulation. However, addition of 25 microM spermine after stimulation did inhibit both [3H]-uridine incorporation and protein synthesis: this was reversible if cells were freed of polyamine within 4 hr, but not if washed after 24 hr. These results show that, contrary to several previous reports, in-vitro inhibition of cell proliferation by spermine is not due to the formation and action of acrolein.
A Novel Linear Plasmid Mediates Flagellar Variation in Salmonella Typhi (2007)

Unlike the majority of Salmonella enterica serovars, Salmonella Typhi (S. Typhi), the etiological agent of human typhoid, is monophasic. S. Typhi normally harbours only the phase 1 flagellin gene (fliC), which encodes the H:d antigen. However, some S. Typhi strains found in Indonesia express an additional flagellin antigen termed H:z66. Molecular analysis of H:z66+ S. Typhi revealed that the H:z66 flagellin structural gene (fljB(z66)) is encoded on a linear plasmid that we have named pBSSB1. The DNA sequence of pBSSB1 was determined to be just over 27 kbp, and was predicted to encode 33 coding sequences. To our knowledge, pBSSB1 is the first non-bacteriophage-related linear plasmid to be described in the Enterobacteriaceae.
Solar energy. Technology and applications. (1974)

It is pointed out that in 1970 the total energy consumed in the U.S. was equal to the energy of sunlight received by only 0.15% of the land area of the continental U.S. The utilization of solar energy might, therefore, provide an approach for solving the energy crisis produced by the consumption of irreplaceable fossil fuels at a steadily increasing rate. Questions regarding the availability of solar energy are discussed along with the design of solar energy collectors and various approaches for heating houses and buildings by utilizing solar radiation. Other subjects considered are related to the heating of water partly or entirely with solar energy, the design of air conditioning systems based on the use of solar energy, electric power generation by a solar thermal and a photovoltaic approach, solar total energy systems, industrial and agricultural applications of solar energy, solar stills, the utilization of ocean thermal power, power systems based on the use of wind, and solar-energy power systems making use of geosynchronous power plants.
Roundoff noise in cascade realization of finite impulse response digital filters. (1972)

Massachusetts Institute of Technology. Dept. of Electrical Engineering. Thesis. 1972. M.S.
Fast circuit topology for spatial signal distribution analysis (2010)

We present a novel active and analog readout and preprocessing topology for position sensitive photodetectors (PSPD) that allows to readout a large variety of PSPD devices with different pixel numbers. Additionally, the topology was designed to allow for a significant reduction of analog-to-digital conversion channels. The circuit topology replaces the common passive charge divider and consists of N input stages, N × M weighting stages and M analog adder stages, where N is the number of the input channels, i.e. the number of photodetector pixels and M is the number of outputs. The circuit performs the multiplication of a matrix (the weights) with a vector (signals). For this, the input stage makes M copies of each of the N input signals, the weighting stage multiplies these signal copies with N × M different weights and the output stage adds all weighted copies with the same copy index. For high flexibility, the weights are programmable and the topology allows to interconnect several identical circuits for larger N. As application for the circuit, we present a Neural Network based positioning scheme for γ-ray imaging detectors with thick, monolithic scintillation crystals. We used Monte Carlo simulation for training and evaluation of the method and found that the spatial resolution of the γ-ray imaging detectors was significantly enhanced. The strong border artifacts of the center of gravity positioning scheme in monolithic scintillation crystals could be corrected to a large extent.
Vasopressin for the management of catecholamine-resistant anaphylactic shock. (2008)

Severe anaesthetic anaphylaxis is relatively uncommon. Oxygen, fluids and epinephrine are considered to be the mainstay for treatment of cardiovascular collapse and current guidelines for the management of anaphylaxis list only epinephrine as a vasopressor to use in the event of a cardiovascular collapse. Recently, evidence has emerged in the support of the use of vasopressin in cardiopulmonary resuscitation; it is also recommended for the treatment of ventricular fibrillation, septic shock and post-cardiopulmonary bypass distribution shock. Currently, there is no algorithm or guideline for the management of anaphylaxis that include the use of vasopressin. We report a 24-year-old woman who developed severe anaphylactic shock at induction of anaesthesia while undergoing laparoscopic cholecystectomy. Circulation shock was refractory to epinephrine and high doses of pure alpha-agonist phenylephrine and norepinephrine. Single intravenous dose of two units of vasopressin re-established normal circulation and blood pressure.
Photomixing in Resonant Laser-Assisted Field Emission—A New Technique for Wide-Band-Tunable Terahertz Sources (2004)

When optical radiation is focused on a nanoscale field emitter tip, the potential and emitted current follows each cycle of the radiation field. Nonlinearity causes mixing of the optical radiation from two lasers so that current oscillations from dc to over 500 THz can be created at the tip. Several different methods are considered for coupling these signals directly from the tip, while avoiding losses from shunting by the anode capacitance, and prototypes are described that use two of these methods. Analyses, which are consistent with measurements of the current oscillations in field emission that are caused by a transistor-transistor logic amplitude-modulated laser diode, show that this technique offers promise as a new method for wide-band-tunable terahertz sources.
Driving Experience and the Functional Field of View (1999)

Research has suggested that novice drivers have different search strategies compared with their more experienced counterparts, and that this may contribute to their increased accident liability. One issue of concern is whether experienced drivers have a wider field of peripheral vision than less experienced drivers. This study attempted to distinguish between people of varying driving experience on the basis of their functional fields of view. Participants searched video clips taken from a moving driver's perspective for potential hazards while responding to peripheral target lights. Hit rates for peripheral targets decreased for all participant groups as processing demands increased (i.e. when hazards occurred) and as the eccentricity of the target increased, though there was no interaction. An effect of experience was also found which suggests that this paradigm measures a perceptual skill or strategy that develops with driving experience.