gebhart/patrepeval huggingface dataset:
On the girth of tanner (3, 5) quasi-cyclic LDPC codes (2006)

In this correspondence, the cycles of Tanner (3,5) quasi-cyclic (QC) low-density parity-check (LDPC) codes are analyzed and their girth values are derived. The conditions for the existence of cycles of lengths 4,6,8, and 10 in Tanner (3,5) QC LDPC codes of length 5p are expressed in terms of polynomial equations in a 15th root of unity of the prime field F/sub p/. By checking the existence of solutions for these equations over F/sub p/, the girths of Tanner (3,5) QC LDPC codes are derived.
Publication pattern of medical theses, France, 1993-98 (2001)

Most French medical theses are not made available to the scientific community. In the European context, where medical training and qualification have to be standardized, our study provides a simple method of assessing that publication objectives of thesis research are met. Further research is needed to explore the educational value of medical professional theses.
Spectral Demonstration of Semihemoglobin Formation during CN-Hemin Incorporation into Human Apohemoglobins (1997)

The incorporation of CN-hemin into three human adult apohemoglobin species (apohemoglobin, alpha-apohemoglobin, and apohemoglobin modified at its beta93 sulfhydryl with p-hydroxymercuribenzoate) has been monitored at micromolar concentrations in 0.05 M potassium phosphate buffer, pH 7.0, at 10 degrees C. In all cases, Soret spectral blue shifts accompanied CN-protohemoglobin but not CN-deuterohemoglobin formation. This finding in conjunction with isofocusing studies provided evidence of a CN-protosemi-alpha-hemoglobin intermediate, the formation of which appeared to be a direct consequence of CN-protohemin-alpha heme pocket interactions. The kinetics of full reconstitution of CN-protohemoglobin and CN-deuterohemoglobin revealed four distinct phases that apparently correlated with heme insertion (Phase I), local structural rearrangement (Phase II), global conformational response (Phase III), and irreversible histidine iron bond formation (Phase IV). These phases exhibited rates of 7.8-22 x 10(7) M(-1) s(-1), 0.19-0.23 s(-1), 0.085-0.12 s(-1), and 0.008-0.012 s(-1), respectively. Partial (50%) reconstitution with CN-protohemin, in contrast, revealed only three kinetic phases (with Phase III missing) of heme incorporation into native and p-hydroxymercuribenzoate-modified apohemoglobin. Furthermore, the absence of Phase III slowed the rate of proximal bond formation. These findings support the premise that irreversible assembly of CN-protosemi-alpha-hemoglobin is deterred by the presence of a heme-free beta partner, the consequence of which may be that intermolecular heme transfer is encouraged under conditions of heme deficiency in vivo.
Bayesian Model Averaging With Applications to Benchmark Dose Estimation for Arsenic in Drinking Water (2006)

An important component of quantitative risk assessment involves characterizing the dose-response relationship between an environmental exposure and adverse health outcome and then computing a benchmark dose, or the exposure level that yields a suitably low risk. This task is often complicated by model choice considerations, because risk estimates depend on the model parameters. We propose using Bayesian methods to address the problem of model selection and derive a model-averaged version of the benchmark dose. We illustrate the methods through application to data on arsenic-induced lung cancer from Taiwan.
A fine granular scalable perceptually lossy and lossless audio codec (2003)

This paper presents advanced audio zip (AAZ), an audio codec that provides the fine granular bit-rate scalability from lossy to lossless coding. Perceptually embedded coding principle is employed in AAZ to provide lossy reconstruction with optimal perceptual quality at intermediate bit-rates. AAZ also provides the backward compatibility where the lossless bit-stream embeds a compliant MPEG-4 AAC bit-stream.
Numerical Models Help Analyze Lost-Circulation/Flow Events and Frac Gradient Increase to Control an HPHT Well in the East Mediterranean Sea (2004)

Abstract This paper presents the analysis methods and modeling results from a post-well study of a lost-circulation/flow event in a challenging high-pressure/high-temperature (HPHT) exploration well. The effects of well conditions such as wellbore pressure changes, rock mechanical properties, and geo-pressures are reported. Results from a new lost-circulation, finite element analysis (FEA) model also help explain why various formation-sealing treatment systems (some conventional and others new) failed to reduce the losses into the loss zones. After a new fracture gradient (FG) enhancement squeeze system (FGESS) was implemented, it effectively halted the losses. Full circulation was then re-established to stabilize the well. The well had been losing at an equivalent circulating density (ECD) of 16.4 lbm/gal. Application of the FGESS treatment increased the wellbore pressure containment integrity to sustain an equivalent of 17.0 lbm/gal mud as measured by a formation integrity test (FIT). This remarkable improvement in the apparent or near-wellbore FG (NWFG) or fracture re-initiation pressure (FRIP) was achieved along with several other cost-saving factors. A new FEA model is also discussed to help show how the FRIP or NWFG was increased by the FGESS treatment and may predict how FGESS treatments can increase the FRIP or NWFG in future wells. This fully 3-D model uses various types of treatment data and well conditions such as wireline log data for formation stresses and rock properties to calculate a FGESS treatment's higher FRIP or NWFG. Upon re-entry of the well 7 months after the successful FGESS treatment, the seal in the loss zones was still holding against HPHT conditions. This sustained seal reduced costs even more and allowed a liner to be set successfully without drilling fluid or cement losses in the reservoir section of the well. The conclusions of the study can help optimize well plans for future wells in the area, which can lead to lower costs for drilling fluids, casing design, cementing, and completion equipment.
Evaluation of Vertical Motion Sensors for Potential Application to Heave Correction in Corps Hydrographic Surveys. (1987)

We studied the RBC membrane proteins of four patients, including a mother and daughter, with hereditary stomatocytosis. One- and two-dimensional gel electrophoresis revealed that a 28 kDa integral protein, present in normal RBC membranes, was absent in all four patients. This abnormality, reported once previously (Lande et al, 1982), appears to be a characteristic feature of hereditary stomatocytosis, and may be related to the underlying permeability defect in this disorder.
3D Reconstruction and Visual SLAM of Indoor Scenes for Augmented Reality Application (2018)

The indoor environments are usually considered as GPS-denied areas, which make the localization of mobile devices a challenging task. The visual SLAM (simultaneous localization and mapping) is a commonly adopted technique for indoor localization and 3D reconstruction. It processes the image information of the scene to derive the location of the camera-equipped device and the 3D structure of the environment. Moreover, many modern mobile devices come with multiple built-in sensors. The integration of multi-sensor information is able to provide more robust localization results compared to the monocular camera based methods. In this paper we implement an indoor augmented reality system based on Project Tango developed by Google. This system is able to construct the 3D environment and reuses the constructed data to relocalize the mobile device. The constructed 3D point cloud can be transformed to the map data, and let the system estimate the navigation path. With the accurate pose estimation provided by Tango, the augmented reality content can keep the original position after a long distance movement.
Searching RC5-Keys with Distributed Reconfigurable Computing. (2006)

Distributed Computing projects such as SETI@home or distributed.net have demonstrated how supercomputer performance can be achieved by the use of thousands of linked computers contributing their idle time. The goal of this paper is to combine traditional Distributed Computing concepts with reconfigurable hardware, where free resource area can be used to achive computation speed-ups. Our approach is demonstrated on the base of a RC5 brute force key search analog to the distributed.net project. To support this, we implemented I) a platform-independent, scalable, and efficient hardware key searcher which can be easily used with various types of FPGA boards. In addition, we II) present how these computing nodes can be managed in reconfigurable runtime systems and integrated into a large
Reversal of Left Ventricular Hypertrophy in Hypertensive Patients (1992)

This is a metaanalysis of all available studies as of December 1990 that have evaluated the effect of antihypertensive pharmacologic therapy on left ventricular structure examined by echocardiography. We applied preset inclusion criteria to the analysis. A total of 109 studies comprising 2357 patients (28% previously untreated) with an average age of 49 years (range 30 to 71) were included. Overall left ventricular mass (LVM) was reduced by 11.9% [95% confidence interval (CI) 10.1 to 13.7] in parallel with a reduction of mean arterial pressure of 14.9% (CI 14 to 15.8). To differentiate between first-line therapies and to adjust for differences between studies, we performed ANCOVA. Angiotensin converting enzyme (ACE) inhibitors reduced LVM by 15% (CI 9.9 to 20.1), beta-blockers by 8% (CI 4.8 to 11.2), calcium antagonists by 8.5% (CI 5.1 to 11.8), and diuretics by 11.3% (CI 5.6 to 17). When we calculated LVM using the same formula for all studies the absolute reductions in grams were 44.7 g with ACE inhibitors, 22.8 g with beta-blockers, 26.9 g with calcium antagonists, and 21.4 g with diuretics. Except for diuretics, all therapies mainly affected wall thickness, while diuretics predominantly reduced ventricular diameter. In conclusion, this metaanalysis shows that ACE inhibitors, beta-blockers, and calcium antagonists all reduce LVM by reversing wall hypertrophy, and that the effect is most pronounced with ACE inhibitors. Conversely, diuretics reduce LVM mainly through a reduction of left ventricular volume. Based on these data, we hypothesize that ACE inhibitors are more effective than other first-line therapies in reducing LVM. However, this theory and its possible prognostic implications need to be evaluated in controlled prospective trials.
A dietary source of coenzyme Q is essential for growth of long-lived <i>Caenorhabditis elegans clk-1</i> mutants (2001)

Mutations in the clk-1 gene of the nematode Caenorhabditis elegans result in slowed development, sluggish adult behaviors, and an increased lifespan. CLK-1 is a mitochondrial polypeptide with sequence and functional conservation from human to yeast. Coq7p, the Saccharomyces cerevisiae homologue, is essential for ubiquinone (coenzyme Q or Q) synthesis and therefore respiration. However, based on assays of respiratory function, it has been reported that the primary defect in the C. elegans clk-1 mutants is not in Q biosynthesis. How do the clk-1 mutant worms have essentially normal rates of respiration, when biochemical studies in yeast suggest a Q deficiency? Nematodes are routinely fed Escherichia coli strains containing a rich supply of Q. To study the Q synthesized by C. elegans, we cultured worms on an E. coli mutant that lacks Q and found that clk-1 mutants display early developmental arrest from eggs, or sterility emerging from dauer stage. Provision of Q-replete E. coli rescues these defects. Lipid analysis showed that clk-1 worms lack the nematode Q(9) isoform and instead contain a large amount of a metabolite that is slightly more polar than Q(9). The clk-1 mutants also have increased levels of Q(8), the E. coli isoform, and rhodoquinone-9. These results show that the clk-1 mutations result in Q auxotrophy evident only when Q is removed from the diet, and that the aging and developmental phenotypes previously described are consistent with altered Q levels and distribution.
1993 New Car Data (1993)

The 93CARS dataset contains information on 93 new cars for the 1993 model year. Measures given include price, mpg ratings, engine size, body size, and indicators of features. The 26 variables in the dataset offer sufficient variety to illustrate a broad range of statistical techniques typically found in introductory courses.
Streaming of scalable multimedia over Content Delivery Cloud (2012)

Content Delivery Cloud (CDC) extends Content Delivery Network (CDN) to provide elastic, scalable and low cost services to the customers. For multimedia streaming over CDC, caching the media content onto the edge server from storage cloud is commonly used to minimize the latency of content delivery. It is very important for CDN to balance between the resources being used (storage space, bandwidth, etc) and the performance achieved. Commercial CDNs (such as Akamai, Limelight, Amazon CloudFront) have their proprietary caching algorithms to deal with this issue. In this paper, we propose a method to further improve the efficiency of the caching system for scalable multimedia contents. Specifically, we notice that a scalable multimedia content can be flexibly truncated to lower bit rates on-the-fly based on the available network bandwidth between the edge server to the end users. Therefore, it may not be necessary to cache such a content at its highest quality/rate. Based on this observation, we show that edge server can decide an optimized truncation ratio for the cached scalable multimedia contents to balance between the quality of the media and the resource usage. The proposed optimized truncation algorithm is analyzed and its efficacy in improving the efficiency of the caching system is justified with simulation result.
Vertical stacking as a reflection filter (1977)

Abstract In order to improve the signal-to-noise ratio of noisy seismic reflection data before velocity determination by computer, it's common practice to sum several traces having the same source-to-geophone (SGD) separation but different CDP points. We say we form a vertical stack. When reflectors are horizontal planes, vertical stacking simply reduces the noise without distorting the reflection waveforms. However, when a reflector is a dipping plane, the individual reflections from that plane may be identical; but they arrive at slightly different times. As a result, the sum reflection is distorted: vertical stacking acts as a filter.
A Comparative Study on the Prevalence of Intestinal Helminthes in Dewormed and Non-Dewormed Students in a Rural Area of North-Central Nigeria (2010)

Parasitic helminthes are endemic in Nigeria, owing to poor environmental sanitation, pollution, and contamination of water and air. Children in Nigeria are highly exposed and very vulnerable to these infections, and these infections have adverse effects on their physical and mental development. School children, then, are good targets for mass-treatment programs against intestinal worms; treating children has been shown to reduce transmission to untreated members in communities. This study determines the effectiveness of deworming school children with a view to improving the planning and implementation of control programs in the study area and reveals that regular use of broad-spectrum anti-helminth medication is advocated for effective deworming programs.
Loss of Human Immunodeficiency Virus Type 1 (HIV-I) Antibodies with Evidence of Viral Infection in Asymptomatic Homosexual Men (1988)

Four asymptomatic homosexual men reverted from positive to negative serologic results for the human immunodeficiency virus, type 1 (HIV-1) over 2.5 years, as shown by enzyme-linked immunosorbent assay (ELISA) and Western blot. Antibody bands in the Western blot from three men were undetectable 6 to 12 months after being positive; gradual fading of the number and intensity of bands was seen in the other man. No HIV-1-p24 antigenemia was detected; cryopreserved peripheral blood mononuclear cells were negative for HIV-1 by standard culture assay. Polymerase chain reaction (gene amplification) assays were done on peripheral blood mononuclear cells and showed the HIV-1 provirus in all subjects 6 to 18 months after the last positive antibody test. Serum specimens from each participant were genetically identical. Polymerase chain reaction showed that peripheral blood mononuclear cells from one subject at different times matched by HLA DNA typing. Clinical and laboratory features of these four men were similar to those of other seronegative subjects. Rare, asymptomatic persons seropositive for HIV-1 may not remain seropositive, but may remain latently infected with HIV-1.
Synthesis of c nucleosides. X. Structural analogs of formycin B (1975)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of c nucleosides. X. Structural analogs of formycin BTam Huynh Dinh, Annie Kolb, Catherine Gouyette, Jean Igolen, and Tran Dinh SonCite this: J. Org. Chem. 1975, 40, 19, 2825–2830Publication Date (Print):September 1, 1975Publication History Published online1 May 2002Published inissue 1 September 1975https://doi.org/10.1021/jo00907a027RIGHTS & PERMISSIONSArticle Views143Altmetric-Citations18LEARN 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 InReddit PDF (649 KB) Get e-AlertsSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts
Transcriptional regulation through RfaH contributes to intestinal colonization by<i>Escherichia coli</i> (2005)

The Escherichia coli regulatory protein RfaH contributes to efficient colonization of the mouse gut. Extraintestinal pathogenic (ExPEC) as well as non-pathogenic probiotic E. coli strains rapidly outcompeted their isogenic rfaH mutants following oral mixed infections. LPS-core and O-antigen side-chain as well as capsular polysaccharide synthesis are among the E. coli virulence factors affected by RfaH. In respect of colonization, deep-rough LPS mutants (waaG) but not capsular (kps) mutants were shown to behave similarly to rfaH mutants. Furthermore, alteration in the length of O-antigen side-chains did not modify colonization ability either indicating that it was the regulatory effect of RfaH on LPS-core synthesis, which affected intestinal colonization. Loss of RfaH did not significantly influence adhesion of bacteria to cultured colon epithelial cells. Increased susceptibility of rfaH mutants to bile salts, on the other hand, suggested that impaired in vivo survival could be responsible for the reduced colonization capacity.
Anticonvulsive Effect of a Selective mGluR8 Agonist (<i>S</i>)‐3,4‐Dicarboxyphenylglycine (<i>S</i>‐3,4‐DCPG) in the Mouse Pilocarpine Model of Status Epilepticus (2007)

At doses ranging from 12.5 to 1,200 mg/kg, intravenous administration of S-3,4-DCPG may not be effective in controlling status epilepticus. Down-regulation of mGluR8 may be related to reduced S-3,4-DCPG-mediated inhibition and the subsequent occurrence of spontaneously recurrent seizures.
Effect of airway acidosis and alkalosis on airway vascular smooth muscle responsiveness to albuterol (2015)

Registered at clinicaltrials.gov: NCT01216748 .
Conceptual Areas of Death Education (1980)

The need for the inclusion of death education concepts into the curriculum at all levels has been expressed by numerous health educators. In order to effectively meet this need, it is imperative that teachers be adequately prepared to deal with the diverse and sometimes controversial topics encompassed by a death education course. Although there is a vast amount of information in the area of death and dying, there does not appear to be a consensus about the essential knowledge base which should be included in a professional preparation course in death education for health educators. As a result, death education courses vary tremendously in the scope and depth of topics covered. Current events, instructor biases, previous experiences, and departmental philosophy often determine the focus of a death education course.
The effect of synthetic diether phospholipid on lipid absorption in the rat. (1977)

The effect of synthetic diether phosphatidylcholine on lipid absorption in the rat was studied to determine whether this material inhibited absorption of either cholesterol or fatty acid. A lipid emulsion was prepared with sodium taurocholate, phospholipid, 3H-cholesterol, 14C-triolein, and oleic acid. Emulsion given to controls contained pig liver phosphatidylcholine as the source of phospholipid. For experimentals it was supplied as diether phosphatidylcholine. Emulsions were given by gavage into the stomach and recoveries of radioactive lipids in various regions of the gastrointestinal tract were determined with radioactive techniques 4 and 24 hours after receipt of the lipid challenge. Significantly greater amounts of 3H-cholesterol were recovered unabsorbed from the gastrointestinal tract of experimental rats at both 4 and 24 hours after administration of labeled lipids. Somewhat more of the 14C-oleic acid label derived from labeled triolein was also recovered unabsorbed in experimentals, although a significant difference was not observed between experimentals and controls. It is concluded that nondigestible (diether) phosphatadidylcholine inhibits absorption of cholesterol. This phospholipid, however, had no appreciable affect on fatty acid absorption as definitive malabsorption of this material was not observed under the conditions of this study.
ANALYSIS OF LOAD FREQUENCY CONTROL DYNAMICS BASED ON MULTIPLE SYNCHRONIZED PHASOR MEASUREMENTS (2005)

Abstract- In recent years time stamps of the Global Po-sitioning System can be utilized for precise time synchroniza-tion at different remote locations. By the time synchroniza-tion and information technology, it becomes available to exe-cute synchronized measurements of large power system. Au-thors have constructed an online global monitoring system of the Western Japan 60Hz power system. This paper investigates dynamic characteristics of fre-quency oscillation after a disturbance based on measure-ment results. First, by observing the frequency oscillations at each point and phase differences among them, global be-haviors of the power system are investigated. It is consid-ered how power flow varied in the power system just after the disturbance. Secondly, transient behaviors are studied in detail through the Wavelet analysis. Some interesting in-teractions among the local power systems can be observed and system performances originated from a Load Frequency Control (LFC) can be extracted. Finally, frequency varia-tion characteristics by the LFC are studied on a plane of fre-quency deviation versus phase difference. Then the stiffness and controlled behaviors of the power system are carefully considered. From these analyses, it is confirmed that the multiple synchronized phasor measurement system has a great pos-sibility to investigate the global power system in an easy way.
Storage assignment using expression tree transformations to generate compact and efficient DSP code (1999)

No abstract available.