gebhart/patrepeval huggingface dataset:
Efficient radar target classification using adaptive joint time-frequency processing (2000)

This paper presents a new target recognition scheme via adaptive Gaussian representation, which uses adaptive joint time-frequency processing techniques. The feature extraction stage of the proposed scheme utilizes the geometrical moments of the adaptivity spectrogram. For this purpose, we have derived exact and closed form expressions of geometrical moments of the adaptive spectrogram in the time, frequency, and joint time-frequency domains. Features obtained by this method can provide substantial savings of computational resources, preserving as much essential information for classifying targets as possible. Next, a principal component analysis is used to further reduce the dimension of feature space, and the resulting feature vectors are passed to the classifier stage based on the multilayer perceptron neural network. To demonstrate the performance of the proposed scheme, various thin-wire targets are identified. The results show that the proposed technique has a significant potential for use in target recognition.
Integrated sample preparation and speciation analysis for the simultaneous determination of methylated species of tin, lead and mercury in water by purge-and-trap injection-capillary gas chromatography-atomic emission spectrometry (1996)

A sensitive and interference-free automated method for the simultaneous speciation analysis of methylated species of mercury, tin and lead, and also inorganic mercury in water, using purge-and-trap injection–gas chromatography–atomic emission spectrometry, was developed. The ionic species are volatilized from the sample after ethylation, using sodium tetraethylborate, in acetate buffer medium of pH 5 and preconcentrated on a capillary cryogenic trap. Desorption is effected by linear heating of the trap, followed by separation of the analytes by capillary gas chromatography and selective simultaneous detection by microwave-induced plasma atomic emission spectrometry. Detection limits of 0.15, 0.20 and 0.60 ng l–1 for methylated tin, lead and mercury species, respectively, and 2 ng l–1 for inorganic mercury can be obtained, on the basis of a 10 ml sample volume. Examples of results for the analysis of river- and soil run-off water samples are given.
Dormancy, Germination, and Emergence Characteristics of Fall Panicum (<i>Panicum dichotomiflorum</i>) Seed (1980)

Fall panicum ( Panicum dichotomiflorum Michx.) seed were found to be dormant at harvest. This dormancy was overcome by an after-ripening period of 17 to 22 weeks, alternating germination temperatures (10 C for 16 h and 30 C for 8 h), stratification, and mechanical or chemical scarification. Soaking seed in gibberellic acid (GA 3 ) or thiourea for 1 day, or washing seed in running tap water for up to 96 h before seed were placed in a germinator, had no effect on dormancy. In the greenhouse, fall panicum emergence was greatest (82%) when seed were placed on the growth media surface. The maximum number of seedlings (39%) emerged in the field when seed were placed 1.3 cm below the soil surface, although some emerged from as deep as 5.1 cm.
Asterias: integrated analysis of expression and aCGH data using an open-source, web-based, parallelized software suite (2007)

Asterias (http://www.asterias.info) is an open-source, web-based, suite for the analysis of gene expression and aCGH data. Asterias implements validated statistical methods, and most of the applications use parallel computing, which permits taking advantage of multicore CPUs and computing clusters. Access to, and further analysis of, additional biological information and annotations (PubMed references, Gene Ontology terms, KEGG and Reactome pathways) are available either for individual genes (from clickable links in tables and figures) or sets of genes. These applications cover from array normalization to imputation and preprocessing, differential gene expression analysis, class and survival prediction and aCGH analysis. The source code is available, allowing for extention and reuse of the software. The links and analysis of additional functional information, parallelization of computation and open-source availability of the code make Asterias a unique suite that can exploit features specific to web-based environments.
Bootstrap Decision Making for Polygraph Examinations, (1992)

Abstract : The authors examined human numerical evaluation, discriminant analysis, and a bootstrap approach to decision making in the psychophysiological detection of deception with the control question test. The data for these analyses were obtained from the Utah Cooperative Working Group Database and consisted of 100 innocent and 100 guilty subjects of mock crime experiments. They found statistically equivalent performance for the three approaches. However, it should be noted that the human evaluators used in this study were not representative of the average polygraph examiner, and the human evaluation data reported here are likely to have substantially overestimated the accuracy of human numerical evaluation in the field. Taken in that context, the performance of the statistical classifiers should be viewed very favorably. In absolute terms, the bootstrap approach outperformed the other two approaches. As compared to discriminant analysis, the bootstrap has much to recommend it. It avoids the restrictive mathematical assumptions of discriminant analysis, and since it is not tied to any empirical standardization sample, the bootstrap approach is likely to be widely generalizable. The authors conclude that statistical decision making has come of age in the detection of deception and should see universal applications in the field in the near future.
Divalproex Treatment for Youth With Explosive Temper and Mood Lability: A Double-Blind, Placebo-Controlled Crossover Design (2000)

This preliminary study replicates open-label findings showing that divalproex is an efficacious treatment for explosive temper and mood lability in disruptive children and adolescents.
Annexin A5 Promoter Haplotype M2 Is Not a Risk Factor for Recurrent Pregnancy Loss in Northern Europe (2015)

This study cautions to consider the M2 haplotype as a deterministic factor in early pregnancy success because: i) no RPL disease risk was associated with the haplotype in two clinically well-characterized RPL case-control study samples, ii) high prevalence of the haplotype among fertile controls and world-wide populations is inconsistent with the previously proposed severe impact on early pregnancy success, iii) weak impact of M2 haplotype on the production of ANXA5 protein has been established by others.
Road Extraction of High-Resolution Remote Sensing Images Derived from DenseUNet (2019)

Road network extraction is one of the significant assignments for disaster emergency response, intelligent transportation systems, and real-time updating road network. Road extraction base on high-resolution remote sensing images has become a hot topic. Presently, most of the researches are based on traditional machine learning algorithms, which are complex and computational because of impervious surfaces such as roads and buildings that are discernible in the images. Given the above problems, we propose a new method to extract the road network from remote sensing images using a DenseUNet model with few parameters and robust characteristics. DenseUNet consists of dense connection units and skips connections, which strengthens the fusion of different scales by connections at various network layers. The performance of the advanced method is validated on two datasets of high-resolution images by comparison with three classical semantic segmentation methods. The experimental results show that the method can be used for road extraction in complex scenes.
Proton Conductivity of Simple Ionic Hydroxides Part I: The Proton Conductivities of Al(OH)<sub>3</sub>, Ca(OH)<sub>2</sub>, and Mg(OH)<sub>2</sub> (1980)

Abstract Proton conductivity is an outstanding feature of Al(OH) 3 , Mg(OH) 2 , and Ca(OH) 2 powders between room temperature and their respective dehydration temperatures. It can be measured by using Pd‐black electrodes in H 2 either by d.c. conductivity measurements, applying high injection voltages (> 10 4 V/cm), or by thermopotential measurements. Two conductivity mechanisms are observed which can be assigned to proton conductivity σ* H and defect proton conductivity σ H '. The activation energies σ' H are 1.65, 2.0, and 2.2 eV for Al(OH) 3 , Mg(OH) 2 , and Ca(OH) 2 respectively. The activation energies σ H * are lower, ranging between 0.5–1.0 eV. σ' H occurs 20–60 K below the on‐set temperature of dehydration. It is enhanced by the adsorption of CH 3 COOH vapor and suppressed by NH 3 vapor acting as proton donator and proton acceptor or traps respectively.
Titanium-activated carbon-carbon bond formation by reductive head-to-head coupling of carbon disulfide: synthesis of [(.eta.5-C5H5)2Ti]2(C2S4) and comparative analysis of this electron-delocalized tetrathiolene-bridged dititanium complex with the electronically equivalent, electron-localized oxalate- and tetra-p-tolyloxalylamidine-bridged dititanium complexes (1987)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTitanium-activated carbon-carbon bond formation by reductive head-to-head coupling of carbon disulfide: synthesis of [(.eta.5-C5H5)2Ti]2(C2S4) and comparative analysis of this electron-delocalized tetrathiolene-bridged dititanium complex with the electronically equivalent, electron-localized oxalate- and tetra-p-tolyloxalylamidine-bridged dititanium complexesHolly A. Harris, A. David Rae, and Lawrence F. DahlCite this: J. Am. Chem. Soc. 1987, 109, 15, 4739–4741Publication Date (Print):July 1, 1987Publication History Published online1 May 2002Published inissue 1 July 1987https://pubs.acs.org/doi/10.1021/ja00249a058https://doi.org/10.1021/ja00249a058research-articleACS PublicationsRequest reuse permissionsArticle Views257Altmetric-Citations50LEARN 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-AlertscloseSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts
Molecular analysis of the promoter region of the Clostridium difficile toxin B gene that is functional in Escherichia coli (1998)

Clostridium difficile is a human pathogen that produces two types of toxins, A and B, that cause a potentially lethal gastrointestinal syndrome termed pseudomembranous colitis. Virtually nothing is known about the mechanism of regulation of toxin production in this organism, and cis-regulatory regions of neither toxin have yet been identified, thus prompting this investigation. A motif homologous with the Shine-Dalgarno sequence of Escherichia coli occurs upstream from the putative initiation codon of toxin B, making this region also a candidate to contain a promoter. Therefore, a subgenomic DNA library of C. difficile in a plasmid vector was first constructed encompassing the 5'-end of the toxin B gene. A 450-bp DNA fragment was excised from the subgenomic DNA library clone and subcloned into a promoter-probe plasmid vector that contains two divergently oriented, promoterless genes to assay for promoter function. This subcloned DNA fragment directed the expression of alkaline phosphatase, a reporter gene product of the promoterless vector, thus indicating the presence of a functional promoter. To locate the promoter more precisely, a series of nested deletions of the toxin B promoter subclone was constructed with exonuclease III. The promoter that facilitates expression of the toxin B gene in E. coli was localised, based on alkaline phosphatase activity. The transcriptional initiation site of toxin B mRNA in E. coli was mapped by primer extension analysis, suggesting two closely associated tandem start sites directed by two similarly spaced promoters within this localised region.
Dual Interleaved Active-Clamp Forward With Automatic Charge Balance Regulation for High Input Voltage Application (2008)

This paper proposes a new dual interleaved active-clamp forward topology suitable for high input voltage and high-density application. Two interleaved forward circuits are connected in series on the primary side and in parallel on the secondary side. Therefore, only two high-voltage MOSFETs are needed for the primary switches. Also, the two interleaved parts utilize auxiliary windings to share one capacitor to fulfill active-clamp. Charge balance of the two channels is, thus, regulated by the shared clamping capacitor without demand for extra control schemes. Through the resonance between the magnetizing inductors and the equivalent capacitors of the switches during the transition time, switching loss of the primary switches can be reduced. Interleaved operation reduces the size of the output filter inductor. Based on detailed analysis, a prototype with 220-400-V input and 5-V/30-A output is built. Experimental results verify the performance of the new topology.
QUADRATIC ASSIGNMENT AS A GENERAL DATA ANALYSIS STRATEGY (1976)

The quadratic assignment paradigm developed in operations research is discussed as a general approach to data analysis tasks characterized by the use of proximity matrices. Data analysis problems are first classified as being either static or non‐static. The term ‘static’ implies the evaluation of a detailed substantive hypothesis that is posited without the aid of the actual data. Alternatively, the term ‘non‐static’ suggests a search for a particular type of relational structure within the obtained proximity matrix and without the statement of a specific conjecture beforehand. Although the static class of problems is directly related to several inference procedures commonly used in classical statistics, the major emphasis in this paper is on applying a general computational heuristic to attack the non‐static problem and in using the quadratic assignment orientation to discuss a variety of research tactics of importance in the behavioral sciences and, particularly, in psychology. An extensive set of numerical examples is given illustrating the application of the search procedure to hierarchical clustering, the identification of homogeneous object subsets, linear and circular seriation, and a discrete version of multidimensional scaling.
Reconstruction and Regeneration of Corneal Endothelium: A Review on Current Methods and Future Aspects (2013)

Corneal transplantation is a popular choice of treatment for many corneal disorders. However, the shortage in availability of donor tissues limits the amount of corneal transplantations around the globe. Continuous increase in the number of patients has boosted the need for clinical grade tissues or a reasonable substitute to overcome this issue. Alternatives include cell, tissue or bio-engineering, cell culture in vitro, the potential use of stem cells or other related therapies. There is a very rapid advancement in the field of endothelial keratoplasty as it has advantages being a less-sutured surgery with quicker rehabilitation and better post operative visual outcomes. Thus, to overcome the necessity of donor tissues for selective keratoplasty, the endothelial reconstruction or regeneration is currently studied. This review highlights recent advances in the isolation, culture, expansion of the corneal endothelium and the use of scaffolds or matrices to facilitate endothelial transplantation.
BIOCHEMICAL CHARACTERIZATION OF ANTI-MICROBIAL ACTIVITY OF GLYCOLIPIDS PRODUCED BY RHODOCOCCUS ERYTHROPOLIS (2011)

Bacteria exhibiting antimicrobial activity were isolated from contaminated sites in Riyadh area, Saudi Arabia. It was charaterized and identified as Rhodococcus erythropolis. The biosurfactants produced by Rhodococcus erythropolis were partially purified and characterized by HPLC and GCMS. The influence of antimicrobial activities were obtained by using agar diffusion method against some Gram positive and Gram negative pathogenic bacteria involved (Escherichia coli, Pseudomonas aerouginosa, Bacillus cereus, Klebsiella pneumoniae, Proteus spp., Salmonella spp. Corynebacterium spp., Streptococcus pneumoniae and Staphylococcus aureus); and two pathogenic fungi viz., Aspergillus niger and Aspergillus flavus. These surface active agents exhibited high inhibitory activity against Escherichia coli, Pseudomonas aeruginosa, Aspergillus niger and Aspergillus flavus among the tested ones. The results clearly indicated that the antibacterial and antifungal activity of the used glycolipids vary with the species of the organisms used. The microbes examined by scanning electronic microscope (SEM), were totally deformed and exhibited severe destruction. Abnormal cell division was observed at high frequencies among cells that tried to divide in the presence of the Rhodococcus erythropolis glycolipids . Many cells were enlarged, elongated, empty hosts, or fragmented, consistent with the extremely low viability. Thus, the study ascertains the value of the use of these glycolipids which could be of considerable interest to the development of new anti-microbial materials for medical applications as water purification plants, dental surgery equipments and pharmaceutical purposes. The potential activity of these microorganisms to produce useful antimicrobial compounds is great and must be better explored.
Quantitative Determination of Technological Improvement from Patent Data (2015)

The results in this paper establish that information contained in patents in a technological domain is strongly correlated with the rate of technological progress in that domain. The importance of patents in a domain, the recency of patents in a domain and the immediacy of patents in a domain are all strongly correlated with increases in the rate of performance improvement in the domain of interest. A patent metric that combines both importance and immediacy is not only highly correlated (r = 0.76, p = 2.6*10(-6)) with the performance improvement rate but the correlation is also very robust to domain selection and appears to have good predictive power for more than ten years into the future. Linear regressions with all three causal concepts indicate realistic value in practical use to estimate the important performance improvement rate of a technological domain.
Dietary fiber and prebiotics and the gastrointestinal microbiota (2017)

The gastrointestinal microbiota has an important role in human health, and there is increasing interest in utilizing dietary approaches to modulate the composition and metabolic function of the microbial communities that colonize the gastrointestinal tract to improve health, and prevent or treat disease. One dietary strategy for modulating the microbiota is consumption of dietary fiber and prebiotics that can be metabolized by microbes in the gastrointestinal tract. Human alimentary enzymes are not able to digest most complex carbohydrates and plant polysaccharides. Instead, these polysaccharides are metabolized by microbes which generate short-chain fatty acids (SCFAs), including acetate, propionate, and butyrate. This article reviews the current knowledge of the impact of fiber and prebiotic consumption on the composition and metabolic function of the human gastrointestinal microbiota, including the effects of physiochemical properties of complex carbohydrates, adequate intake and treatment dosages, and the phenotypic responses related to the composition of the human microbiota.
Context transfer for seamless micro-mobility (2004)

Wireless networks and mobile computing technologies are having a profound impact on IP-based networks, as their basic protocols were designed without assuming mobility of the network nodes. More recently, protocols like Mobile IP have been designed to handle global mobility, and micro-mobility protocols have been proposed for their management of intra-mobility. However, these protocols do not address important issues required for seamless mobility, such as candidate access router discovery, target access router determination, and context transfer. In this paper, we identify the problems related to seamless mobility, underline design considerations to be observed when designing seamless mobility solutions and propose an architecture that can be used as a framework for the implementation of these solutions.
Kinetic Modeling of the Glucoregulatory System to Improve Insulin Therapy (1985)

For simulating glucose-insulin control systems with respect to application in an optimized therapy of insulin-dependent diabetes, a global transfer model was generated and supplemented with a structural model of the opened control circuit. The transfer characteristics within the established linear range of the intact system, which is identical with the range of euglycaemia, can be described by a 4th-order differential equation. A test strategy was developed to identify the state variables of the opened, i. e., of the diabetic, system and to determine by pole assignment those control constants of glucose-controlled insulin provision that are optimally adapted to a given set of state variables. The model system was verified by the prediction of plasma insulin and blood glucose reponses to various loads of glucose and/or insulin, by isotopic studies (U-14C-glucose) of glucose turnover, and by predicting the rates of absorption (i. e., of appearance within the distribution space) of orally administered glucose. The latter situations provide fields of application for this model strategy in addition to the main goal, namely, the individual optimization of control parameters for open-loop or closed-loop insulin therapy.
Design and implementation of indirect protocols for mobile wireless environments (1996)

Host mobility within the largely stationary internetwork has been treated thus far as a routing problem, to be solved entirely within the network layer of the ISO/OSI protocol model. However, mobility of host machines from one attachment point to another affects transport and higher layer protocols as well. In addition, the use of wireless links by mobile computers for attachment to the fixed network infrastructure, gives rise to performance problems due to low bandwidth and high error rates that are typical of wireless environments. The existing network protocols do not provide any mechanism to deal with the problems arising out of host mobility and wireless access. Widespread use of mobile and wireless capable computers is also likely to create a demand for new applications that utilize the mobile user&apos;s location for ac...