gebhart/patrepeval huggingface dataset:
Structural and physical studies of PVC/PVDF doped Nano lithium salt for electrochemical applications (2017)

Â AbstractPolymer blend of poly (vinyl chloride) and poly(vinylidene fluoride) of nominal composition (30PVC/70PVDF) wt:wt were prepared in the form of thin films using casting technique. Samples of the same composition doped with gradient concentration of nano lithium salt (LTO) were prepared and studied. Proposed filler was characterized using Fourier transform infrared spectroscopy (FTIR), UV/vis. optical absorption, X-ray diffraction (XRD), Transmission electron microscopy (TEM) and Electron diffraction (ED).Â Obtained data approve the crystalline nano structure of filler with a cubic structure of average size (25-30 nm). Prepared nano composites were then investigated using different spectroscopic methods. XRD reveals the amorphous nature of the base polymer blend with tendency for increase in crystallinity with increasing the content of lithium salt. FTIR shows a preservation of the main vibrational spectral bands in their position with small variation in the area and intensity of some spectral bands related to the interaction between polymer and filler.
Evaluation of factors affecting color and acceptance of potato chips / (1978)

This was produced from a copy of a document sent to us for microfilming.While the most advanced technological means to photograph and reproduce this document have been used, the quality is
Chromosome-specific molecular organization of maize ( <i>Zea mays</i> L.) centromeric regions (1998)

A set of oat-maize chromosome addition lines with individual maize (Zea mays L.) chromosomes present in plants with a complete oat (Avena sativa L.) chromosome complement provides a unique opportunity to analyze the organization of centromeric regions of each maize chromosome. A DNA sequence, MCS1a, described previously as a maize centromere-associated sequence, was used as a probe to isolate cosmid clones from a genomic library made of DNA purified from a maize chromosome 9 addition line. Analysis of six cosmid clones containing centromeric DNA segments revealed a complex organization. The MCS1a sequence was found to comprise a portion of the long terminal repeats of a retrotransposon-like repeated element, termed CentA. Two of the six cosmid clones contained regions composed of a newly identified family of tandem repeats, termed CentC. Copies of CentA and tandem arrays of CentC are interspersed with other repetitive elements, including the previously identified maize retroelements Huck and Prem2. Fluorescence in situ hybridization revealed that CentC and CentA elements are limited to the centromeric region of each maize chromosome. The retroelements Huck and Prem2 are dispersed along all maize chromosomes, although Huck elements are present in an increased concentration around centromeric regions. Significant variation in the size of the blocks of CentC and in the copy number of CentA elements, as well as restriction fragment length variations were detected within the centromeric region of each maize chromosome studied. The different proportions and arrangements of these elements and likely others provide each centromeric region with a unique overall structure.
Association study of B-cell marker gene polymorphisms in European Caucasian patients with systemic sclerosis. (2012)

These results obtained through a large cohort of European caucasian patients with SSc do not support the contribution of CD19, CD20, CD22, CD24 variants to the genetic susceptibility of SSc.
Engineering change (EC) technology for thin film metallurgy on polyimide films (2002)

Engineering change in multichip modules such as the IBM Thermal Conduction Module (TCM) requires making new nets on the top surface of the module. This is done either to repair opens or shorts in the internal nets or to correct design errors. Since the trend in multichip packaging in the high end is towards thin-film wiring with polyimide as the dielectric, wire-bond and laser delete processes compatible with thin-film metallurgy on polyimide films are required to carry out engineering change. The authors describe the results of a technology-development effort to optimize these processes on a metal/polyimide thin-film structure.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Brain HSP70 mRNA Expression is Linked with Plasma Cortisol Levels in Goldfish (Carassius auratus) Exposed to a Potential Predator (2002)

We previously found that when goldfish were exposed to a potential predator, bluegills, the goldfish experienced an increase in HSP70 mRNA expression in the brains and increased plasma cortisol levels. In the present study, we examined the potential causative relationship between HSP70 mRNA expression and plasma cortisol levels. Cortisol agonists (corticotropin releasing factor and cortisol) and antagonists (metyrapone and betamethasone) were used to modulate plasma cortisol levels. HSP70 mRNA expression and plasma cortisol levels were analyzed by Northern blotting and ELISA, respectively. Goldfish treated with the cortisol agonists showed marked increases in plasma cortisol levels and also in brain HSP70 mRNA expression. When goldfish were exposed to bluegills, plasma cortisol levels increased and HSP70 mRNA expression was enhanced after 6 hr. However, pre-treatment with the cortisol antagonists 24 hr prior to the exposure inhibited the enhancement as well as the increase in plasma cortisol levels. These results suggest that plasma cortisol plays a key role in the enhancement of brain HSP70 mRNA expression in goldfish stressed by exposure to bluegills.
The European Earwig Found in Provo, Utah (1944)

(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Evaluating Techniques for Determining Tillage Regime in the Southeastern Coastal Plain and Piedmont (2006)

Reduced tillage and residue management can have significant impacts on soil and water quality, primarily through the accumulation of soil organic C. Yet, methods of tillage and residue cover assessment are time and resource intensive, and often do not yield spatially representative results. A major goal of this study was to compare new remote sensing (RS) indices with the current line‐transect approach for differentiating between conventional (CT) and conservation tillage systems. Experimental plots were located in two physiographic regions in Georgia: the Southern Piedmont and Southern Coastal Plain. Treatments consisted of no tillage (NT) or CT at the Piedmont site, and strip‐tillage (ST) or CT at the Coastal Plain site. Remotely sensed data were acquired three times prior to canopy closure, using a handheld multispectral radiometer (485–1650 nm) and thermal imager (7000–14 000 nm). Soil texture and soil water content were measured to assess the impact of changes in soil background reflectance on crop residue assessments. Results showed that differences in spectral response between CT and conservation tillage systems were best observed using a normalized difference ratio of near infrared (NIR) (1650 ± 100 nm) and blue (485 ± 45 nm) spectra under dry conditions and low canopy cover (<25%). Differences in soil texture and color were the primary limiting factors in differentiating between tillage treatments. However, using readily available soil survey data, our data indicate that visible and NIR spectra can be used to rapidly differentiate between CT and conservation tillage systems in the Georgia Southeastern Coastal Plain and Piedmont physiographic regions.
Modular Visual Servo Tracking for Industrial Robots (1997)

Visually servoing a robot to track a moving workpiece has been demonstrated in literature using specially customized equipment. In this work, a simple modular architecture is presented using o#-theshelf components with serial line interfaces. The method has widespread application for existing industrial robots whose capabilities can be upgraded without altering proprietary original equipment proven to be reliable. As proof of concept, an ADEPT robot is visually servoed to track workpieces on a conveyor belt moving up to 400 in/min. Simulation results are shown to compare reasonably well with experimental data. Advantages and limitations of the implementation are discussed including the crucial e#ect of delays. 1 Introduction 1.1 Visual servoing The purpose of visual servoing is to track an object of unknown prior location using only relative visual feedback information provided by a camera. Traditionally, the location and orientation of an object in an absolute frame must be determi...
Heat to Hydrogen by Reverse Electrodialysis—Using a Non-Equilibrium Thermodynamics Model to Evaluate Hydrogen Production Concepts Utilising Waste Heat (2022)

The reverse electrodialysis heat engine (REDHE) is a promising salinity gradient energy technology, capable of producing hydrogen with an input of waste heat at temperatures below 100 °C. A salinity gradient drives water electrolysis in the reverse electrodialysis (RED) cell, and spent solutions are regenerated using waste heat in a precipitation or evaporation unit. This work presents a non-equilibrium thermodynamics model for the RED cell, and the hydrogen production is investigated for KCl/water solutions. The results show that the evaporation concept requires 40 times less waste heat and produces three times more hydrogen than the precipitation concept. With commercial evaporation technology, a system efficiency of 2% is obtained, with a hydrogen production rate of 0.38 gH2 m−2h−1 and a waste heat requirement of 1.7 kWh gH2−1. The water transference coefficient and the salt diffusion coefficient are identified as membrane properties with a large negative impact on hydrogen production and system efficiency. Each unit of the water transference coefficient in the range tw=[0–10] causes a −7 mV decrease in unit cell electric potential, and a −0.3% decrease in system efficiency. Increasing the membrane salt diffusion coefficient from 10−12 to 10−11 leads to the system efficiency decreasing from 2% to 0.6%.
Dynamic Distributed Honeypot Based on Blockchain (2019)

Honeypot technology can be applied to efficiently attract attackers and exhaust their resources. However, the traditional static honeypot is easy to be recognized by anti-honeypot technology. By contrast, most of the dynamic honeypots can simulate the real system in time, thus interacting with an intruder in disguise. In this paper, we employ the dynamic property of honeypot in four kinds of services of our system. However, this dynamic property shows up in a location and identification, indicating that genuine or fake services (honeypots) are changeable in different hosts. Thus, the dynamic property of our system differs from the dynamic honeypot aforementioned. Besides, we adopt the blockchain platform (Ethereum) to decentralize our system and store the port access data by delivering a private chain. To illustrate the effectiveness of our scheme in theory and practice, security analysis, eavesdropping attack, scanning attack, and DoS attack experiments are conducted. The results show that our scheme is valid in safeguarding against network attack.
Dermal Exposure to Jet Fuel JP-8 Significantly Contributes to the Production of Urinary Naphthols in Fuel-Cell Maintenance Workers (2005)

Jet propulsion fuel 8 (JP-8) is the major jet fuel used worldwide and has been recognized as a major source of chemical exposure, both inhalation and dermal, for fuel-cell maintenance workers. We investigated the contributions of dermal and inhalation exposure to JP-8 to the total body dose of U.S. Air Force fuel-cell maintenance workers using naphthalene as a surrogate for JP-8 exposure. Dermal, breathing zone, and exhaled breath measurements of naphthalene were obtained using tape-strip sampling, passive monitoring, and glass bulbs, respectively. Levels of urinary 1- and 2-naphthols were determined in urine samples and used as biomarkers of JP-8 exposure. Multiple linear regression analyses were conducted to investigate the relative contributions of dermal and inhalation exposure to JP-8, and demographic and work-related covariates, to the levels of urinary naphthols. Our results show that both inhalation exposure and smoking significantly contributed to urinary 1-naphthol levels. The contribution of dermal exposure was significantly associated with levels of urinary 2-naphthol but not with urinary 1-naphthol among fuel-cell maintenance workers who wore supplied-air respirators. We conclude that dermal exposure to JP-8 significantly contributes to the systemic dose and affects the levels of urinary naphthalene metabolites. Future work on dermal xenobiotic metabolism and toxicokinetic studies are warranted in order to gain additional knowledge on naphthalene metabolism in the skin and the contribution to systemic exposure.
Increasing hybridization rate and sensitivity of DNA microarrays using isotachophoresis (2014)

We present an on-chip electrokinetic method to increase the reaction kinetics and sensitivity of DNA microarray hybridization. We use isotachophoresis (ITP) to preconcentrate target molecules in solution and transport them over the immobilized probe sites of a microarray, greatly increasing the binding reaction rate. We show theoretically and experimentally that ITP-enhanced microarrays can be hybridized much faster and with higher sensitivity than conventional methods. We demonstrate our assay using a microfluidic system consisting of a PDMS microchannel superstructure bonded onto a glass slide on which 60 spots of 20-27 nt ssDNA oligonucleotide probes are immobilized. Our 30 min assay results in an 8.2 fold higher signal than the conventional overnight hybridization at 100 fM target concentration. We show rapid and quantitative detection over 4 orders of magnitude dynamic range of target concentration with no increase in the nonspecific signal. Our technique can be further multiplexed for higher density microarrays and extended for other reactions of target-surface immobilized ligands.
Novel locked nucleic acid (LNA)-based probe for the rapid identification of Chlamydia suis using real-time PCR (2014)

As the importance of chlamydial infections in pigs has become more obvious, a rapid and sensitive method to study the prevalence of Chlamydia suis in pig herds is required. Such a method should permit routine diagnostic tests for herds with clinical and subclinical infections, without the need for Chlamydia culture. The main objective of this study was to develop a specific and rapid method for detecting C. suis in swine herds. A real-time PCR assay using a single locked nucleic acid (LNA)-containing probe specific for C. suis was developed based on the previously described 28S rDNA fragment used to identify Chlamydiales. Use of LNA nucleotides enabled the single probe to target a short, specific fragment of the 23S rRNA. The probe showed high specificity for C. suis and did not show any cross-reactivity with other Chlamydia or Chlamydophila species nor with swine DNA. All of the 86 tested field isolates, earlier identified as C. suis, were confirmed as positive using the newly developed assay. Using single LNA-based C. suis-specific probe allowed rapid and simple identification of this pathogen without requiring sequencing analysis and culturing. The proposed method may be used to study the prevalence of C. suis infection in pig herds and as a routine diagnostic test for herds with clinical and subclinical infection.
Potential for a greater satellite technology role in aeronautical safety communications (1993)

The author discusses the benefits to aviation of reliable communication. Use of satellite CNS (communication, navigation and surveillance) allows for automatic position reporting. When GPS/Glonass satellite navigation joins satcom, derived positions will be accurate to 100 m. Other benefits such as automatic air traffic control functions are discussed. >
Contemporary Epidemiology of Heart Failure in Fee-For-Service Medicare Beneficiaries Across Healthcare Settings (2017)

In a national 5% sample of Medicare beneficiaries from 2002 to 2013, we identified a cohort of 2 331 939 unique fee-for-service Medicare beneficiaries ≥65-years-old followed for all inpatient and outpatient encounters over a 10-year period (2004-2013). Preexisting HF was defined by any HF encounter during the first year, and incident HF with either 1 inpatient or 2 outpatient HF encounters. Mean age of the cohort was 72 years; 57% were women, and 86% and 8% were white and black, respectively. Within this cohort, 518 223 patients had preexisting HF, and 349 826 had a new diagnosis of HF during the study period. During 2004 to 2013, the rates of incident HF declined 32%, from 38.7 per 1000 (2004) to 26.2 per 1000 beneficiaries (2013). In contrast, prevalent (preexisting + incident) HF increased during our study period from 162 per 1000 (2004) to 172 per 1000 beneficiaries (2013) (<i>P</i><sub>trend</sub> <0.001 for both). Finally, the overall 1-year mortality among patients with incident HF is high (24.7%) with a 0.4% absolute decline annually during the study period, with a more pronounced decrease among those diagnosed in an inpatient versus outpatient setting (<i>P</i><sub>interaction</sub> <0.001) CONCLUSIONS: In recent years, there have been substantial changes in the epidemiology of HF in Medicare beneficiaries, with a decline in incident HF and a decrease in 1-year HF mortality, whereas the overall burden of HF continues to increase.
Relationship between Walleye Fingerling Stocking Density and Recruitment in Lower Lake Oahe, South Dakota (1992)

This study evaluated four methods ofexpressing fingerling stocking density for walleye Stizostedion vitreum: number per surface area, number per littoral-zone area, number per shoreline development value, and number per shoreline distance, Walleye fingerlings were stocked in embayments of lower Lake Oahe in 1988 and 1989 at varying densities. Stocking success was assessed by means of fall gillnetting for young-of-year walleyes. Mean gill-net catch rates varied significantly within each method of expressing stocking density. Effects of stocking density on gill-net catch rate for walleye young of the year were analyzed with linear regression. Fingerling densities expressed as number per shoreline development value had the highest coefficient of determination. Shoreline development value may provide a better measure of walleye fingerling habitat than traditional expressions of stocking density such as number per surface area. Based on this assessment, a minimum stocking density of 17,006 fingerlings/shoreline development value is needed to establish significant recruitment in lower Lake Oahe embayments greater than 150 hectares in surface area. For smaller embayments, a minimum density of 2.78 fingerlings/shoreline meter or 17,006 fingerlings/shoreline development value (whichever is less) should be used. For shoreline nursery areas in lower Lake Oahe, a minimum stocking density of 471.2 fingerlings/hectare of littoral zone is recommended.
Suppression of the asthmatic phenotype by ultraviolet B‐induced, antigen‐specific regulatory cells (2007)

UVB irradiation of skin suppresses AHR and cellular responses of the airways to respiratory allergens. Further, this study implicates UVB or its downstream mediators as a potential approach to reducing the severity of asthma.
Effectiveness of Cardiac Resynchronization Therapy by QRS Morphology in the Multicenter Automatic Defibrillator Implantation Trial–Cardiac Resynchronization Therapy (MADIT-CRT) (2011)

URL: http://www.clinicaltrials.gov. Unique identifier: NCT00180271.
Hydroxyapatite/polyacrylic acid nanocrystals (1999)

Hydroxyapatite nanocrystals have been synthesized in the presence of polyacrylic acid in solution. The method leads to apatite crystals with a polyelectrolyte relative content which increases as a function of its concentration in solution and reaches a limit value of about 15% wt. Polyacrylic acid affects the degree of crystallinity, the coherent length of the perfect crystalline domains, as well as the dimensions and the morphology of the crystals. TEM images indicate that on increasing polyelectrolyte content, the dimensions of the crystals are reduced, while their morphology changes from plate-like to acicular, and, at high polyacrylic acid content, the crystals tend to aggregate in clusters. In agreement, the broadening of the X-ray diffraction reflections indicate a reduction of the coherent length along the long dimension (002) and the cross section (310) of the apatite crystals. The reduction is greater along the direction orthogonal to the c-axis, which can be rationalized by a preferential interaction of the carboxylate groups of the polyelectrolyte with the phosphate sites on the crystalline faces parallel to the c-axis.
Comparison of Functional Group Selective Ion–Molecule Reactions of Trimethyl Borate in Different Ion Trap Mass Spectrometers (2011)

We report here a comparison of the use of diagnostic ion-molecule reactions for the identification of oxygen-containing functional groups in Fourier-transform ion cyclotron resonance (FTICR) and linear quadrupole ion trap (LQIT) mass spectrometers. The ultimate goal of this research is to be able to identify functionalities in previously unknown analytes by using many different types of mass spectrometers. Previous work has focused on the reactions of various boron reagents with protonated oxygen-containing analytes in FTICR mass spectrometers. By using a LQIT modified to allow the introduction of neutral reagents into the helium buffer gas, this methodology has been successfully implemented to this type of an ion trap instrument. The products obtained from the reactions of trimethyl borate (TMB) with various protonated analytes are compared for the two instruments. Finally, the ability to integrate these reactions into LC-MS experiments on the LQIT is demonstrated.
Beam shaping profiles and propagation (2005)

A number of flattened irradiance distributions have been proposed and analyzed in the literature, including the super-Gaussian, flattened-Gaussian, Fermi-Dirac, and super-Lorentzian as well as generalizations of these functions to include multiple shape parameters. Previous work has made comparisons between these different families of functions and examined the effects of propagation (diffraction) on the shape of the beam profile. In this paper, we examine the normalization of different functions, comparisons of profile shapes using different parameters within each family, the slope of the profiles at the half-height point of the irradiance, and two conditions that permit matching shapes of profiles from different families. Then, we summarize the results of diffraction for variation of the profile shape parameters, beam propagation, and diameter of the exit aperture on the shape of a beam as it leaves the optics. Results are also presented which identify the regions and amounts of aspheric surface sag that is required to produce a flattened beam profile as compared to a top-hat profile profile.
Clinical pathological feature of early tongue amyloidosis. (2006)

The biopsy is an important means for the diagnosis of early tongue AL, and the wide variety of amyloid light chain is helpful to differential diagnosis.
True Filterless Class-D Audio Amplifier (2011)

The design of a fully integrated, filterless, class-D audio amplifier in standard 0.25- CMOS technology is described: a novel class-D amplifier architecture, where uniform pulsewidth modulation is introduced. The architecture attenuates residual clock signals around the loop allowing very low harmonic distortion, , to be achieved in conjunction with high PSRR, at 217 Hz. When driving 1.2 W into an 8- load, it achieves an SNR of 103 dB (A-weighted) with an efficiency of . The maximum output power at 1% THD is 3.1 W. Figures of merit are defined to establish that the amplifier exceeds the performance of alternative designs. The amplifier occupied a chip area 1.44 and was packaged as a WLCSP.