gebhart/patrepeval huggingface dataset:
Effect of postural changes on lower limb blood volume, detected with non-invasive photoplethysmography (2008)

This paper describes the effect of passive leg raising on blood volume change in the lower limb, using a dual probe photoplethysmography (PPG) system employing a tissue optics model. The normalized AC/DC ratio and DC value are introduced from the model to evaluate the dynamic pulsation and total blood volume changes due to postural effects. The AC and DC components of PPG signals were collected from a passive leg raising protocol. With the leg raised, the normalized AC/DC ratio significantly decreased when supine, while the normalized DC value increased significantly in both supine and reclining positions. The parameters from the stationary leg showed similar but smaller responses. These results demonstrate a local and systemic physiological phenomenon in the lower limb blood volume change caused by postural changes. The normalized AC/DC ratio and DC value derived from the tissue optics model could be applied to assess the blood volume change.
Ultracompact monolithic integration of balanced, polarization diversity photodetectors for coherent lightwave receivers (1992)

The authors have monolithically integrated an optical front-end on InP for balanced, polarization-diversity coherent lightwave reception which is only 1.3-mm long. Low on-chip insertion loss (<4.5 dB) and balanced photoresponse (1.05:1 or better) are achieved at 1.5- mu m wavelength using straightforward, regrowth-free fabrication. Low-capacitance photodetectors (<or=0.15 pF) are employed for high bandwidth operation.<<ETX>>
ConTour: Data-Driven Exploration of Multi-Relational Datasets for Drug Discovery (2014)

Large scale data analysis is nowadays a crucial part of drug discovery. Biologists and chemists need to quickly explore and evaluate potentially effective yet safe compounds based on many datasets that are in relationship with each other. However, there is a lack of tools that support them in these processes. To remedy this, we developed ConTour, an interactive visual analytics technique that enables the exploration of these complex, multi-relational datasets. At its core ConTour lists all items of each dataset in a column. Relationships between the columns are revealed through interaction: selecting one or multiple items in one column highlights and re-sorts the items in other columns. Filters based on relationships enable drilling down into the large data space. To identify interesting items in the first place, ConTour employs advanced sorting strategies, including strategies based on connectivity strength and uniqueness, as well as sorting based on item attributes. ConTour also introduces interactive nesting of columns, a powerful method to show the related items of a child column for each item in the parent column. Within the columns, ConTour shows rich attribute data about the items as well as information about the connection strengths to other datasets. Finally, ConTour provides a number of detail views, which can show items from multiple datasets and their associated data at the same time. We demonstrate the utility of our system in case studies conducted with a team of chemical biologists, who investigate the effects of chemical compounds on cells and need to understand the underlying mechanisms.
Large-Absorber TES X-ray Microcalorimeters and the Micro-X Detector Array (2009)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation M. E. Eckart, J. S. Adams, S. R. Bandler, R. P. Brekosky, A.‐D. Brown, J. A. Chervenak, A. J. Ewin, F. M. Finkbeiner, R. L. Kelley, C. A. Kilbourne, F. S. Porter, J. E. Sadleir, S. J. Smith, E. Figueroa‐Feliciano, P. Wikus; Large‐Absorber TES X‐ray Microcalorimeters and the Micro‐X Detector Array. AIP Conf. Proc. 16 December 2009; 1185 (1): 699–702. https://doi.org/10.1063/1.3292437 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAIP Publishing PortfolioAIP Conference Proceedings Search Advanced Search |Citation Search
Damage Assessment using Generalized State-Space Correlation Features (2008)

Recently, damage detection capability has been demonstrated successfully using state-space based algorithms. These methods are advantageous because they rely on data-driven techniques that do not conform to models or assumptions like linearity. State-space-based features traditionally involve comparisons between measurements taken at the same location but at different times to determine if a change has taken place. However, if features such as state-space cross-prediction error and generalized interdependence are formulated such that they instead employ comparisons between simultaneous measurements at different locations, a fuller assessment of structural damage is possible. In addition to the presence of damage, other characteristics such as the extent, location, and type of damage can be revealed from these features. This approach is validated through a multi-degree-of-freedom oscillator and an experimental frame structure.
Assessment of Pilot Water Shut Off in High Water Production Wells: Case Study in Sudan (2017)

A severe problem in oil-producing reservoirs is water production.Some reservoirs naturally more likely to face it, fluids tend to flow in least resistance which, are often created by the heterogeneous nature of the rock.Although reservoirs that supported by active bottom water drive and the Oil Water Contact (OWC) moved up to touch the bottom of oil column resulting in high water production.The water should be controlled in order to sustain the oil rate.Chemical water shut-off is a technology which has been used to control excessive water production.Producing Well-4 with high water cut, 94.5% average W/C pilot project of chemical water shut-off using Akron-RK technology, which based on polymer effect to gelling the water, is deployed.Liquid rate decreased from 10,700 to 3,000 bbl /day.Water cut did not drop even when the Electrical Submersible Pump (ESP) ran at low and different frequencies.Analysis the water production and comparing with previous water trend behavior shows there is no change in production trend.Heterogeneity effect on chemical water shut off project must take more sensitive factors to ensure the success of the project.Suggesting that there is possibility, of high vertical permeability which cause re assessment of isotropy factor.
A wireless spread-spectrum communication system using SAW chirped delay lines (2001)

We report on the use of broad-band chirp signals for spread-spectrum communications in indoor and industrial environments. The well-known pulse compression technique associated with chirp signals is exploited to achieve a highly robust communication system. For the generation and compression of the chirp signals, surface acoustic wave delay lines fabricated from an LiTaO/sub 3/-X112rotY substrate are used. Center frequency, bandwidth, chirp duration, and chirp rate are 348.8 MHz, 80 MHz, 500 ns, and /spl plusmn/40 MHz//spl mu/s, respectively. Different modulation schemes for chirp signals are introduced, the effects of nonlinearities, frequency drift, and temperature drift are addressed, and simulations and measurement results from a hardware demonstrator are presented for the use of /spl pi//4-differential quadrature phase-shift keying (DQPSK) modulation. A data rate of up to 40 Mb/s has been achieved experimentally and shows that the proposed system is highly robust against multipath effects.
Electrical properties of germanium/metal-oxide gate stacks with atomic layer deposition grown hafnium-dioxide and plasma-synthesized interface layers (2007)

The electrical properties of metal-oxide-semiconductor (MOS) capacitors composed of atomic-layer-deposited (ALD) hafnium-dioxide (HfO2) dielectrics and plasma-synthesized interface layers were investigated. MOS capacitor with oxynitride interface layer shows negative flatband voltage (Vfb) shift from the ideal value. Hafnium-alkylamide ALD process performed on a plasma nitrided silicon surface causes negative Vfb shift. Germanium MOS capacitors show additional negative Vfb shift (−0.5V). X-ray photoelectron spectroscopy shows evidence of germanium diffusion into the HfO2 layer. Germanium MOS capacitor with tantalum-oxynitride (TaON) interface layer shows superior electrical properties. These results indicate that the selection of the interface layer strongly influences germanium MOS capacitor electrical properties.
Evolution of multiprotocol label switching (1998)

Multi-Protocol Label Switching (MPLS) is rapidly emerging as an Internet Engineering Task Force (IETF) standard intended to enhance the speed, scalability and service provisioning capabilities in the Internet. MPLS uses the technique of packet forwarding based on labels, to enable the implementation of a simpler high-performance packet forwarding engine. This also de-couples packet for-warding from routing, facilitating to provide varied routing services independent of the packet forwarding paradigm. We briefly track the evolution of this technology in re-lation to other existing technologies. Then an overview of the MPLS architecture and design is provided. In addition, some of the work that was a precursor to MPLS is dis-cussed, as well as related issues and debates. I.
Template Role of Double-Stranded RNA in Tombusvirus Replication (2014)

Positive-stranded RNA viruses of plants use their RNAs as the templates for replication. First, the minus strand is synthesized by the viral replicase complex (VRC), which then serves as a template for new plus-strand synthesis. To characterize the nature of the (-)RNA in the membrane-bound viral replicase, we performed complete RNA replication of Tomato bushy stunt virus (TBSV) in yeast cell-free extracts and in plant extracts. The experiments demonstrated that the TBSV (-)RNA is present as a double-stranded RNA that serves as the template for TBSV replication. During the production of new plus strands, the viral replicase displaces the old plus strand in the dsRNA template, leading to asymmetrical RNA synthesis. The presented data are in agreement with the model that the dsRNA is present in nuclease-resistant membranous VRCs. This strategy likely allows TBSV to protect the replicating viral RNA from degradation as well as to evade the early detection of viral dsRNAs by the host surveillance system.
DJess - a context-sharing middleware to deploy distributed inference systems in pervasive computing domains (2005)

In this paper DJess is presented, a Java package that provides programmers with a lightweight middleware by which inference systems implemented in Jess and running on different nodes of a pervasive computing ensemble can transparently share both contextual knowledge (facts) and reactive behaviors (rules). Communication and coordination among inference systems (agents) is achieved through the ability of each agent to reason asynchronously on facts, i.e., propositional expressions representing the context, that might even be asserted by other agents on the basis of inference code (rules), which can be either local or transmitted by any node to any other node. Pervasive computing is the main reference domain that guided the design of the DJess architecture and still drives the API development.
Testing and estimation of thresholds based on wavelets in heteroscedastic threshold autoregressive models (2003)

We consider the testing and estimation of thresholds in heteroscedastic threshold autoregressive models with an unknown number of thresholds. A test statistic based on empirical wavelet coefficients is proposed. The asymptotic distribution of the test statistic is established and consistent estimators of the thresholds and the number of thresholds are given. A Monte Carlo study and a real example are used to assess the performance of our method.
Dependence of critical current density on filament diameter in round multifilament Ag-sheathed Bi2Sr2CaCu2O<i>x</i> wires processed in O2 (1994)

Ag-sheathed Bi2Sr2CaCu2Ox round wires having 37 and 259 filaments, with filament diameters ranging from 11 to 100 μm, were fabricated by the oxide-powder-in-tube method. They were heat treated using step-solidification melt processing in air and pure O2. The transport critical current density was highest in wires processed in pure O2. It increased with decreasing filament diameter and was highest [165 000 A/cm2 (4.2 K, O T)] in wires with 11 μm filaments processed in O2.
The Experimental Research on the Mental Control of Chinese Freestyle Skiers in Motor Learning (2001)

The purpose of this study is to construct psychological frame of motor learning concerning aerial technical project and pass judgement on optimum training program and effect of helping skiing speed. The Research methods comprise psychological measurement, mental skill training and evaluation, combing mental training with technical training. The result shows that the skiers technical level are raised, and the skill are steadily developed after 13 months motor learning on the base of foregoing program. The range of skier's optimum helping skiing speed reflecting different motion of diverse degree of difficulty and the control methods have been effectively tested by three times national competition and ordinary practice. The Skiers' ability to control helping skiing speed related to gross score closely. Psychological accuracy for motor learning is enhanced with the growth of motion difficulty, with which the controllable range of helping skiing speed gets smaller and smaller. Successful rate of skiers' motion depends on three factors: 1) the perception of the optimum helping skiing speed; 2) aerial technology; 3) the ability to control landing.
Metabolic breakdown of Kaneclors (polychlorobiphenyls) and their products by Acinetobacter sp (1983)

Biodegradability of commercial polychlorobiphenyl mixtures (Kaneclors, KC 200 to KC 500) and their metabolic products by Acinetobacter sp. strain P6 were studied by gas chromatography-mass spectrometry analysis. KC 200 (primarily dichlorobiphenyls) rapidly degraded after 4 h of incubation with the P6 resting cells, showing predominant accumulation of monochlorobenzoic acids. KC 300 (primarily trichlorobiphenyls) were also degraded after 4 h of incubation, producing various metabolic intermediates such as mono- and dichlorobenzoic acids, dihydroxy biphenyl compounds with two and three chlorines, and the ring meta-cleavage compounds with two and three chlorines. KC 400 (primarily tetrachlorobiphenyls) were also susceptible to biodegradation by the same organism. Chlorobenzoic acids (chlorine number 1 to 3), dihydroxy compounds (chlorine number 2 to 4), and the ring meta-cleavage compounds (chlorine number 2 to 3) were observed as the products from KC 400. In addition to such products, a large amount of unknown compounds with two chlorines in the molecule, which can be derived from 2,3,2',3' - or 2,3,2',5'-tetrachlorobiphenyls or both, accumulated. In contrast to KC 200, KC 300, and KC 400, KC 500 (primarily pentachlorobiphenyls) were resistant to degradation and hardly metabolized. Only dihydroxy compounds of certain pentachlorobiphenyls were detected.
A Promising Serum Autoantibody Marker, Anti-Heat Shock Protein 90α, for Cholangiocarcinoma (2015)

The present study was designed to investigate cholangiocarcinoma (CCA) antibodies in hamster serum. Hamster CCA cell lines were processed using sodium dodecyl sulfate-polyacrylamide gel electrophoresis and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. A candidate biomarker was confirmed by immunoprecipitation and western blot, and was further analyzed using ELISA and sera from normal control hamsters, hamsters with opisthorchiasis and hamsters with various stages of CCA, as well as from CCA patients and healthy individuals. One candidate marker was identified as HSP90α, as indicated by a high level of anti-HSP90α in hamster CCA sera. It was found that the levels of anti-HSP90α were specifically elevated in the sera of hamsters with CCA compared with other groups and progressively increased with the clinical stage. At the cut-off point of 0.4850 on the receiver operating characteristic curve, anti-HSP90α could discriminate CCA from healthy control groups with a sensitivity of 76.2%, specificity of 71.4% and total accuracy 75.5%. In the present study, we have shown that anti-HSP90α may be a potential useful serum biomarker to discriminate CCA cases from healthy persons.
<i>Candida orthopsilosis</i> and <i>Candida metapsilosis</i> spp. nov. To Replace <i>Candida parapsilosis</i> Groups II and III (2005)

Two new species, Candida orthopsilosis and C. metapsilosis, are proposed to replace the existing designations of C. parapsilosis groups II and III, respectively. The species C. parapsilosis is retained for group I isolates. Attempts to construct a multilocus sequence typing scheme to differentiate individual strains of C. parapsilosis instead revealed fixed DNA sequence differences between pairs of subgroups in four genes: COX3, L1A1, SADH, and SYA1. PCR amplicons for sequencing were obtained for these four plus a further seven genes from 21 group I isolates. For nine group II isolates, PCR products were obtained from only 5 of the 11 genes, and for two group III isolates PCR products were obtained from a different set of 5 genes. Three of the PCR products from group II and III isolates differed in size from the group I products. Cluster analysis of sequence polymorphisms from COX3, SADH, and SYA1, which were common to the three groups, consistently separated the isolates into three distinct sets. All of these differences, together with DNA sequence similarities <90% in the ITS1 sequence, suggest the subgroups should be afforded species status. The near absence of DNA sequence variability among isolates of C. parapsilosis and relatively high levels of sequence variability among isolates of C. orthopsilosis suggest that the former species may have evolved very recently from the latter.
Color characterization for inkjet copiers (2007)

Copier color mapping is the color modeling and mapping from the scanner RGB color space to the printer device color space. It may be aimed for exact/closest color matching or for preference color matching from the source hardcopy to the reproduced hardcopy. It is not simply the linking of a scanner color characterization and a printer color characterization. Unlike other cross-color reproduction systems in which both the source color space and the destination color space are well-defined, copy source types are not controllable in general; thus, the source color space (e.g. the black and white points, color gamut, and the scanner response to the source) cannot be well-defined. Thus no exact color characterization can be made for general copy. A trade-off for the balance of overall copy reproduction or a fuzzy characterization is important for the color characterization. In this paper, we present a method for scanner characterization preserving the neutral balance, a method to characterize scanners with controllable extrapolation, selecting a gamut mapping method for optimized system color reproduction, and overall characterization methods for different source types and different print modes for the trade-off for overall copy color reproduction is achieved.
An <sup>86</sup>Y-Labeled Mirror-Image Oligonucleotide: Influence of Y-DOTA Isomers on the Biodistribution in Rats (2008)

A mirror-image oligonucleotide (L-RNA) was radiolabeled with the positron emitting radionuclide (86)Y (t(1/2) = 14.7 h) via the bifunctional chelator approach. DOTA-modification of the L-RNA (sequence: 5'-aminohexyl UGA CUG ACU GAC-3'; MW 3975) was performed using (S)-p-SCN-Bn-DOTA. (86)Y radiolabeling of the DOTA-L-RNA produced more than one species as evidenced by HPLC radiometric detection. For the identification of the (86)Y-labeled L-RNA, the structural analogue nonradioactive precursor [Y((S)-p-NH2-Bn-DOTA)](-) was synthesized. Two coordination isomers were separated via HPLC adopting the square antiprismatic (SAP) and the twisted square antiprismatic (TSAP) geometry, respectively. Their stereochemical configuration in the solution state was assessed by NMR and circular dichroism spectroscopy. Both [Y((S)-p-NH2-Bn-DOTA)](-) isomers were converted into isothiocyanate derivatives [Y((S)-p-SCN-Bn-DOTA)](-) and conjugated to the L-RNA. The identity of the [(86)Y-DOTA]-L-RNA species was finally established by comparison of the radiometric ((86)Y) and UV-visible chromatographic profiles. Biodistribution studies in Wistar rats showed minor changes in the biodistribution profile of the [(86)Y((S)-p-NH2-Bn-DOTA)](-) complex isomers, while no significant differences were observed for the [(86)Y-DOTA]-L-RNA isomers. High renal excretions were found for the [(86)Y((S)-p-NH 2-Bn-DOTA)](-) complex isomers as well as for the L-RNA isomers.
A molecular dynamics study of diamond exposed to tritium bombardment for fusion applications (2010)

Diamond, with its low atomic number and high thermal conductivity, is being assessed as a possible plasma facing material within a fusion reactor. Molecular dynamics simulations using the AIREBO potential were performed simulating the exposure of diamond to a plasma in conditions similar to those of the divertor region of a tokamak. Diamond surfaces at temperatures of 300 and 600 K were bombarded with 15 eV tritium at a high flux (1029 ions m−2 s−1). A layer-by-layer etching process was observed which, with the lack of any tritium diffusion though the remaining diamond structure, was responsible for limiting damage, and thus tritium retention, to the top 4–5 diamond layers. Analysis of this damaged region also showed a large amount of residual structure suggesting that bombardment below the physical sputtering threshold (∼30 eV) may not lead to amorphisation of the surface.
Human monoclonal IgM with autoantibody activity against intermediate filaments. (1982)

Monoclonal IgMs from two patients with Waldenström macroglobulinemia were found to react with intermediate filaments. This was shown by (a) immunostaining of various tissues and cultured cells and (b) immunological characterization of the reactive antigen after blotting of polypeptides separated from total cell extracts by gel electrophoresis or purified intermediate filaments on nitrocellulose sheets. One monoclonal IgM had an activity directed only against vimentin, whereas the other reacted with four different classes of intermediate filaments--vimentin, desmin, glial fibrillary protein, and keratins. All of the reactivity of the latter IgM was absorbed by purified vimentin, suggesting that different classes of proteins of intermediate filaments share common antigenic determinant(s). The significance of such autoantibody activity of human monoclonal IgM is discussed in the light of the startling frequency of IgM anti-intermediate filaments antibodies in various diseases.
Comparative studies of porphyrin production in Propionibacterium acnes and Propionibacterium granulosum (1978)

Porphyrin production by Propionibacterium acnes and that by Propionibacterium granulosum were compared. Porphyrin synthesized by both organisms was identified as coproporphyrin III on the bases of absorption and fluorescence spectra and behavior on paper chromatography and thin-layer chromatography. Quantitative, rather than qualitative, differences in production were found between these organisms. In general, P. granulosum produced significantly greater amounts (P less than 0.001) of porphyrin than did P. acnes. delta-Aminolevulinic acid synthetase appeared to be the rate-limiting enzyme of the heme biosynthetic pathway in both organisms. The increased porphyrin production in P. granulosum is apparently associated with increased delta-aminolevulinic acid synthetase activity.