gebhart/patrepeval huggingface dataset:
The platelet aggregation test in group B arbovirus infections (1970)

A new serological method, the platelet aggregation (PA) test, was used to study Group B arbovirus infections, which are often associated with thrombocytopenia. The method is based on the interaction of antigen-antibody complexes with platelets. The PA test was nearly as good as the haemagglutination-inhibition (HI) test for epidemiological studies of tick-borne encephalitis (16 out of 18 HI positive sera) and was superior to the complement-fixation test which was positive in 10 out of 18 HI positive sera. The PA test could be used in the serological diagnosis of Group B arbovirus infection. The titres with the PA test were of the same magnitude as the HI titres, and about ten times higher than the CF titres. Two pairs of dengue haemorrhagic fever sera showed high initial PA titres. The role of immune complexes in the pathogenesis of haemorrhagic fevers is discussed.
Liquid chromatographic method for monitoring therapeutic concentrations of L-dopa and dopamine in serum. (1976)

We describe a new method for the simultaneous assay of 3,4-dihydroxyphenylalanine (L-dopa) and dopamine in serum. Both compounds have been determined quantitatively at concentrations as low as 10 mug/liter with a coefficient of variation of less than 4%. Peak heights were linearly related to concentration up to 10 mg/liter for each compound. Assay of human sera gave within-run and day-to-day coefficients of variation of 2.8% and 3.1% for L-dopa, and 2.9% and 3.7% for dopamine. The linear relationship between readings nA, y-axis) and concentration (mug/liter) is described by the following equations: y = (21.0 +/- 0.082)x + (0.46 +/- 0.31 SD) for L-dopa and y = (17.0 +/- 0.10)x + (0.08 +/- 0.04 SD) for dopamine. The procedure combines liquid/solid extraction, liquid chromatography, and controlled-potential electrochemistry. The simplicity, sensitivity, and accuracy of this method make it suitable for routine clinical analysis of serum samples to optimize bioavailability for individual patients. After the extraction procedure is completed, samples can be analyzed at the rate of 10/h.
Spectroscopic temperature measurements of flames and their physical significance (1971)

A critical examination of the theoretical basis of spectroscopic temperature measurements of non-isothermal non-homogeneous flames by the line reversal, emission-absorption, slope and two-line methods, when self-absorption effects are negligible has clearly shown that the results will depend on a) the measurement method employed; b) the energy of the quantum states involved in the line producing transition; c) the particular temperature gradient prevailing in the flame; and d) the concentration distribution of the thermometric species. Computer calculations are presented to illustrate errors of several hundred degrees Kelvin which may be made by assuming that that measured temperature is the average temperature.
Comparison of the Morphology and Deoxyribonucleic Acid Composition of 27 Strains of Nitrifying Bacteria (1971)

The gross morphology, fine structure, and per cent guanine plus cytosine (GC) composition of deoxyribonucleic acid of 27 strains of nitrifying bacteria were compared. Based on morphological differences, the ammonia-oxidizing bacteria were separated into four genera. Nitrosomonas species and Nitrosocystis species formed one homogenous group, and Nitrosolobus species and Nitrosospira species formed a second homogenous group in respect to their deoxyribonucleic acid GC compositions. Similarly, the nitrite-oxidizing bacteria were separated into three genera based on their morphology. The members of two of these nitrite-oxidizing genera, Nitrobacter and Nitrococcus, had similar GC compositions, but Nitrospina gracilis had a significantly lower GC composition than the members of the other two genera.
Application specific vs. standard web service interfaces for the vertical integration of fieldbus systems (2005)

The paper compares two approaches for developing Web service interfaces for the vertical integration of TTP/A fieldbus systems. High-level abstractions are provided by application specific interfaces, generated from metadata describing fieldbus systems. In contrast standardised interfaces such as OPC XML DA only allow lower levels of abstractions. But these enable accessing the fieldbus system from a broad range of standard clients, while high-level abstractions reflecting the application programmer's view on the system facilitate the development of more specific clients and workflows.
Graph Database Indexing Using Structured Graph Decomposition (2007)

We introduce a novel method of indexing graph databases in order to facilitate subgraph isomorphism and similarity queries. The index is comprised of two major data structures. The primary structure is a directed acyclic graph which contains a node for each of the unique, induced subgraphs of the database graphs. The secondary structure is a hash table which cross-indexes each subgraph for fast isomorphic lookup. In order to create a hash key independent of isomorphism, we utilize a code-based canonical representation of adjacency matrices, which we have further refined to improve computation speed. We validate the concept by demonstrating its effectiveness in answering queries for two practical datasets. Our experiments show that for subgraph isomorphism queries, our method outperforms existing methods by more than an order of magnitude.
Study of CdTe(111)B epilayers grown by molecular-beam epitaxy (1989)

The growth of high-quality Hg1−xCdxTe(111)B epitaxial layers involves the growth of a CdTe(111)B buffer layer, whether the growth is performed onto related or foreign substrates. CdTe(111)B layers have been investigated using the x-ray double-crystal rocking curve and the cathodoluminescence imaging techniques. The optimization of the growth conditions for CdTe(111)B layers is presented for a high-quality homoepitaxy. The heteroepitaxy of CdTe(111)B on GaAs(100) substrates is then discussed, in the case of GaAs substrates oriented (100), misoriented by 2° towards [110], and misoriented by 5° towards [111]. The results indicate that a 2° misorientation leads to CdTe(333) peaks with full width at half-maximum up to four times narrower then either of the other orientations tested. Furthermore, only threading dislocations were visible on this orientation by cathodoluminescence imaging.
Network Coding with Multi-Generation Mixing: Analysis and Applications for Video Communication (2008)

Network Coding (NC) is an emerging networking approach that improves overall throughput over packet networks. Meanwhile, traditional NC approaches have limited advantages under certain network conditions, such as sparse connectivity and high losses; this is especially true for real-time applications. In this paper, we propose and analyze a generalized approach of network coding, which is based on Multi-Generation Mixing (MGM). As we demonstrate in this paper, MGM-based NC improves the performance of real-time data communications under scenarios of sparse connectivity and high loss rates. Under such scenarios, practical network coding not only fail to achieve any improvements; on the contrary it may lead to performance degradations. The analytical as well as the simulation studies we present in this paper show major improvements that can be achieved in situations where practical network coding is not a viable option. In particular, we demonstrate major gains in PSNR video quality under MGM-based network coding.
A posteriorirespiratory gating in contrast ultrasound for assessment of hepatic perfusion (2005)

An original strategy is proposed to minimize the impact of respiratory motion on hepatic contrast-enhanced ultrasound studies. It is based on the a posteriori triggering of dynamic image sequences. It was tested on perfusion studies acquired with a high temporal resolution (8 images s-1) to enable parametric imaging. A respiratory component was first estimated by independent component analysis. The estimation of the local minima and maxima of this curve enabled us to select two subsets of frames, corresponding to the end-of-inspiration plane and to the end-of-expiration plane. Both subsets were simultaneously analysed using factor analysis of medical image sequences. This method identified the main contrast uptake kinetics and their associated localizations. The global strategy was validated firstly on a simulated study and then applied to 11 patients' studies. In both cases, the frame selection was judged relevant and a necessary preliminary step before applying methods of parametric imaging. In conclusion, the a posteriori gating method that is proposed is a first step towards local quantification of hepatic contrast-enhanced ultrasound studies.
A Machine Learning Model for the Identification of High risk Carotid Atherosclerotic Plaques (2021)

Carotid artery disease is an inflammatory condition involving the deposition and accumulation of lipid species and leucocytes from blood into the arterial wall, which causes the narrowing of the carotid arteries on either side of the neck. Different imaging modalities can by implemented to determine the presence and the location of carotid artery stenosis, such as carotid ultrasound, computed tomography angiography (CTA), magnetic resonance angiography (MRA), or cerebral angiography. However, except of the presence and the degree of stenosis of the carotid arteries, the vulnerability of the carotid atherosclerotic plaques constitutes a significant factor for the progression of the disease and the presence of disease symptoms. In this study, our aim is to develop and present a machine learning model for the identification of high risk plaques using non imaging based features and non-invasive imaging based features. Firstly, we implemented statistical analysis to identify the most statistical significant features according to the defined output, and subsequently, we implemented different feature selection techniques and classification schemes for the development of our machine learning model. The overall methodology has been trained and tested using 208 cases of 107 cases of low risk plaques and 101 cases of high risk plaques. The highest accuracy of 0.76 was achieved using the relief feature selection technique and the support vector machine classification scheme. The innovative aspect of the proposed machine learning model is both the different categories of the utilized input features and the definition of the problem to be solved.
Ecotypic Variability in the Metabolic Response of Seeds to Diurnal Hydration–Dehydration Cycles and its Relationship to Seed Vigor (2011)

Seeds in the seed bank experience diurnal cycles of imbibition followed by complete dehydration. These conditions pose a challenge to the regulation of germination. The effect of recurring hydration-dehydration (Hy-Dh) cycles were tested on seeds from four Arabidopsis thaliana accessions [Col-0, Cvi, C24 and Ler]. Diurnal Hy-Dh cycles had a detrimental effect on the germination rate and on the final percentage of germination in Col-0, Cvi and C24 ecotypes, but not in the Ler ecotype, which showed improved vigor following the treatments. Membrane permeability measured by ion conductivity was generally increased following each Hy-Dh cycle and was correlated with changes in the redox status represented by the GSSG/GSH (oxidized/reduced glutathione) ratio. Among the ecotypes, Col-0 seeds displayed the highest membrane permeability, whilst Ler was characterized by the greatest increase in electrical conductivity following Hy-Dh cycles. Following Dh 2 and Dh 3, the respiratory activity of Ler seeds significantly increased, in contrast to the other ecotypes, indicative of a dramatic shift in metabolism. These differences were associated with accession-specific content and patterns of change of (i) cell wall-related laminaribiose and mannose; (ii) fatty acid composition, specifically of the unsaturated oleic acid and α-linoleic acid; and (iii) asparagine, ornithine and the related polyamine putrescine. Furthermore, in the Ler ecotype the content of the tricarboxylic acid (TCA) cycle intermediates fumarate, succinate and malate increased in response to dehydration, in contrast to a decrease in the other three ecotypes. These findings provide a link between seed respiration, energy metabolism, fatty acid β-oxidation, nitrogen mobilization and membrane permeability and the improved germination of Ler seeds following Hy-Dh cycles.
Comparative analysis of mechanical and magnetic amplitude stoppers in an energy harvesting absorber. (2020)

Abstract not provided.
An additional study of multi-muon events produced in pp¯ collisions at s=1.96 TeV (2012)

We present one additional study of multi-muon events produced at the Fermilab Tevatron collider and&#13;\nrecorded by the CDF II detector. We use a data set acquired with a dedicated dimuon trigger and&#13;\ncorresponding to an integrated luminosity of 3.9 fb?1. We investigate the distribution of the azimuthal&#13;\nangle between the two trigger muons in events containing at least four additional muon candidates to&#13;\ntest the compatibility of these events with originating from known QCD processes. We find that this&#13;\ndistribution is markedly different from what is expected from such QCD processes and this observation&#13;\nstrongly disfavors the possibility that multi-muon events result from an underestimate of the rate of&#13;\nmisidentified muons in ordinary QCD events.
Application-Specific Cross-Layer Optimization Based on Predictive Variable-Latency VLSI Design (2015)

Traditional synchronous VLSI design requires that all computations in a logic stage complete in one clock cycle. This leads to increasingly pessimistic design as technology scaling introduces increasingly significant parametric variations that result in an increasing performance variability. Alternatively, by allowing computations in a logic stage to complete in a variable number of clock cycles, variable-latency design provides relaxed timing constraints for average performance, area, and power consumption optimization. In this article, we present improved variable-latency design techniques including: (1) a generic minimum-intrusion variable-latency VLSI design paradigm, (2) a signal probability-based approximate prediction logic construction method for minimum misprediction rate at minimum cost, and (3) an application-specific cross-layer analysis methodology. Our experiments show that the proposed variable-latency design methodology on average reduces the computation latency by 26.80%(14.65%) at cost of 0.08%(3.4%) area and 0.4%(2.2%) energy consumption increase for the interger (floating point) unit of an open-source SPARC V8 processor LEON2 synthesized with a clock-cycle time between 1.97ns(3.49ns) and 5.96ns(13.74ns) based on the 45nm Nangate open cell library, while an automotive application-specific design further achieves an average latency reduction of 41.8%.
Accelerating Queries on Very Large Datasets (2009)

In this chapter, we explore ways to answer queries on large multi-dimensional data efficiently.Given a large dataset, a user often wants to access only a relatively small number of the records.Such a selection process is typically performed through an SQL query in a database management system (DBMS).In general, the most effective technique to accelerate the query answering process is indexing.For this reason, our primary emphasis is to review indexing techniques for large datasets.Since much of scientific data is not under the management of DBMS systems, our review includes many indexing techniques outside of DBMS systems as well.Among the known indexing methods, bitmap indexes are particularly well suited for answering such queries on large scientific data.Therefore, more details are given on the state of the art of bitmap indexing techniques.This chapter also briefly touches on some emerging data analysis systems that don't yet make use of indexes.We present some evidence that these systems could also benefit from the use of indexes.
On SOVA for nonbinary codes (1999)

For binary codes, Fossorier et al. (1998), have shown that the soft-output Viterbi algorithm (SOVA) becomes equivalent to the max-log-maximum a posteriori (MAP) algorithm after a modification. In this letter, such modified SOVA is generalized into nonbinary cases. The equivalence between the modified SOVA and the max-log-MAP algorithm is proved more straightforwardly. The modified SOVA requires only add-compare-select operations and is suitable for high-speed parallel implementation.
Allosteric signalling in the outer membrane translocation domain of PapC usher (2014)

PapC ushers are outer-membrane proteins enabling assembly and secretion of P pili in uropathogenic E. coli. Their translocation domain is a large β-barrel occluded by a plug domain, which is displaced to allow the translocation of pilus subunits across the membrane. Previous studies suggested that this gating mechanism is controlled by a β-hairpin and an α-helix. To investigate the role of these elements in allosteric signal communication, we developed a method combining evolutionary and molecular dynamics studies of the native translocation domain and mutants lacking the β-hairpin and/or the α-helix. Analysis of a hybrid residue interaction network suggests distinct regions (residue 'communities') within the translocation domain (especially around β12-β14) linking these elements, thereby modulating PapC gating. Antibiotic sensitivity and electrophysiology experiments on a set of alanine-substitution mutants confirmed functional roles for four of these communities. This study illuminates the gating mechanism of PapC ushers and its importance in maintaining outer-membrane permeability.
Abtastgeometrie (1975)

Unter Abtastgeometrie versteht man die Gesetzmässigkeiten des Abtastrasters, welche sich aus der Forderung der punktweisen Lesung oder Aufzeichnung der Bildinformation ergeben. Schreitet die Abtastung von einem Punkt zu einem der nächstliegenden, d. h. nach einem kontinuierlichen Linienzug, dann spricht man von Abtastung nach Linienraster. Springt hingegen die Abtastung von einem Punkt zu einem nicht nächst liegenden, dann spricht man von Punktraster.
Experimental Studies on Human Health Effects of Air Pollutants (1975)

Adult male volunteers were exposed to ozone (O3) at 0.25, 0.37, or 0.50 ppm, and to O3 in combination with nitrogen dioxide (NO2) and carbon monoxide (CO), with secondary stresses of heat, intermittent light exercise, and repeated exposure. Few important physiological changes, and only mild symptoms, were found with 0.25 ppm O3, with 0.25 ppm 03 plus 0.30 ppm NO2, or when 30 ppm CO was added to the latter mixture. With 0.37 ppm O3, more symptoms were present and some subjects developed definite decreases in pulmonary function. With 0.50 ppm O3, most subjects had symptoms and about half showed substantial pulmonary function decrement. In reactive subjects exposed on two successive days, changes were usually greater the second day, indicating that effects of successive exposures were cumulative.
Crystallization of the chaperone protein SecB (1995)

The secretory protein SecB found in Escherichia coli is a molecular chaperone that binds to precursor forms of a number of proteins targeted for export to the periplasmic space. SecB maintains these proteins in a translocation-competent conformation facilitating the translocation process. The material has been cloned and expressed in E. coli. Crystals have been grown from polyethylene glycol 8000 by vapor diffusion using the hanging drop technique. These crystals are monoclinic, belonging to space group C2 with unit cell dimensions a = 56.0 A, b = 111.1 A, c = 134.7 A, and beta = 104 degrees. The crystals diffract to 8 A resolution on a Rigaku imaging plate detector. Dynamic light scattering experiments suggest that SecB exhibits aggregation behavior with a number of different precipitating agents. These results may explain resistance of SecB to forming ordered crystals.
Management Information Base for the Differentiated Services Architecture (2002)

This memo describes an SMIv2 (Structure of Management Information version 2) MIB for a device implementing the Differentiated Services Architecture. It may be used both for monitoring and configuration of a router or switch capable of Differentiated Services functionality.
Investigation of window size in classification of EEG-emotion signal with wavelet entropy and support vector machine (2015)

When dealing with patients with psychological or emotional symptoms, medical practitioners are often faced with the problem of objectively recognizing their patients' emotional state. In this paper, we approach this problem using a computer program that automatically extracts emotions from EEG signals. We extend the finding of Koelstra et. al [IEEE trans. affective comput., vol. 3, no. 1, pp. 18-31, 2012] using the same dataset (i.e. the DEAP: dataset for emotion analysis using electroencephalogram, physiological and video signals), where we observed that the accuracy can be further improved using wavelet features extracted from shorter time segments. More precisely, we achieved accuracy of 65% for both valence and arousal using the wavelet entropy of 3 to 12 seconds signal segments. This improvement in accuracy entails an important discovery that information on emotions contained in the EEG signal may be better described in term of wavelets and in shorter time segments.
Hierarchical control for autonomous mobile robots with behavior-decision fuzzy algorithm (2003)

The authors propose a construction method of a behavior-decision system using fuzzy algorithms capable of expressing sequence flow which includes a mixture of both crisp and fuzzy processing. They also propose a method of tuning algorithms for giving robots the autonomous ability to judge purposes of actions like humans. In this method, an attempt is made to express ambiguous situations which a robot will encounter and behavior-decision algorithm flow by using the modified fuzzy algorithm with fuzzy branch controlled threshold, called a behavior-decision fuzzy algorithm. Results of computer simulations for a simple indoor environment and experiments using a real autonomous mobile robot are shown to prove the effectiveness of the proposed method.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Highly Potent Non‐peptidic Inhibitors of the HCV NS3/NS4A Serine Protease. (2003)

Abstract For Abstract see ChemInform Abstract in Full Text.
[Perforations in recanalization of arterial occlusions of the femoropopliteal area]. (2000)

Interventional recanalizations may induce wall perforations. The aim of this study was to evaluate the incidence and the management of this complication in chronic femoropoliteal occlusions. 512 cases undergoing interventional recanalization (PTA or Excimer laser-assisted angioplasty) of femoropopliteal occlusions between 5 and 32 cm in length (mean: 13.8 cm) were included. Perforations were immediately examined by angiography or colour-coded ultrasonography (7.5 MHz). Perforations were observed in 22/512 cases (4.3%). The event was coincident with guide-wire manipulations in 16/512 cases (3.1%), laser catheter advancement without wire guidance in 3/58 cases (5.2%), and balloon dilatation in 3/431 cases (0.7%), while lasering via wire guidance (n = 408) did not induce perforation. Combining treatment with prolonged balloon dilatation (success: 6/8, recurrent bleeding: 4/6), ultrasound-guided compression (UGC; success: 20/20) and regulation of anticoagulation, all active bleedings could be terminated. Due to perforation, 12/512 cases (2.3%) required repeated interventions for successful recanalization. Except hematomas of 15-320 ml volume (ultrasound measurement) and prolonged hospital stays for 24-72 h, no further clinical sequelae resulted. In conclusion, perforations occurring during recanalization of long and chronic femoropopliteal occlusions have to be considered as primary interventional failure. However, with immediate treatment including UGC, the risk of serious clinical sequelae is low.