gebhart/patrepeval huggingface dataset:
Future RFID and Wireless Sensors for Ubiquitous Intelligence (2008)

Next generation RFID towards ubiquitous wireless sensing and identification requires high network throughput along with long operation range and ultra low energy consumption. In this paper, we review future RFID for ubiquitous intelligence and their technology needs from system to device perspectives. As a promising enabling technology, ultra wideband radio (UWB) and its use in various RFID implementations are investigated. A special focus on an UWB/UHF hybrid passive RFID and sensor system with asymmetric wireless links is studied as an example. Unlike conventional RFID systems relying on backscattering and narrowband radio, UWB is introduced as the uplink for tag to reader communication. It enables a high network throughput (2000 tag/sec), high data bandwidth (100 MHz pulse rate), under ultra low power and low cost constraint. The hardware implementation in silicon level is also presented. Finally, applications of the system in intelligent warehouse and fresh food tracker are introduced.
Synthesis and characterization of magnetic nano particles (2000)

Abstract Magnetic nanoparticles with average diameter in the range of 6.4–8.3 nm have been synthesized by a chemical co‐precipitation of Fe(II) and Fe(III) salts in 1.5 M NH 4 OH solution. The size of the magnetic particles is dependent on both temperature and the ionic strength of the iron ion solutions. The magnetic particles formed at higher temperature or lower ionic strength were slightly larger man those formed at lower temperature or higher ionic strength respectively. In spite of the different reaction conditions, all the resultant nanoparticles are nearly spherical and have a similar crystalline structure. At 300 K, such prepared nanoparticles are superparamagnetic. The saturation magnetizations for 7.8 and 6.4 nm particles are 71 and 63 emu/g respectively, which are only ∼ 20–30% less than the saturation magnetization (90 emu/ g) of bulk Fe 3 O 4 . Our results indicated mat a control of the reaction conditions could be used to tailor the size of magnetic nanoparticles in free precipitation.
The Asymmetric Vascular Stent (2009)

The use of AVS shows promise as a viable new therapeutic in intracranial aneurysm treatment. These data encourage further investigation and provide substantial support to the AVS concept.
Electrooxidation of H<sub>2</sub>/CO Mixtures on a Well-Characterized Pt<sub>75</sub>Mo<sub>25</sub>Alloy Surface (1997)

The electrochemical oxidation of hydrogen in the presence of carbon monoxide (0.05−2%) on a well-characterized Pt75Mo25 alloy surface was examined using the rotating disk electrode technique in 0.5 M H2SO4 at 333 K. The surface composition of this alloy determined by low-energy ion scattering after sputter cleaning and annealing in UHV was essentially the same as the bulk. The shapes of the polarization curves are qualitatively similar to those for the Pt50Ru50 alloy examined previously: a high Tafel-slope (ca. 0.5 V/dec) region at low overpotential followed by a transition to a highly actively state where the current approaches the diffusion-limiting current; the potential where the transition to the active state occurs decreases with decreasing CO concentration, and the current in the low-overpotential region is roughly inverse half-order in the CO partial pressure. The magnitude of the current in the low-overpotential region on the Pt75Mo25 alloy is nearly the same as on the Pt50Ru50 alloy, but the potential for the transition to the active state is about 0.15 V higher. The magnitude of the current at 0.05−0.1 V with H2 containing 100 ppm CO is sufficiently high that Pt−Mo alloy is of technical interest as an anode catalyst for low-temperature fuel cells fed with a reformed hydrocarbon fuel.
Development of a laced electromagnetic wiggler (1988)

The construction of a one-period wiggler system called a laced wiggler is presented along with test results from a prototype design. The laced electromagnetic wiggler is being developed to attain higher magnetic fields, shorter wavelengths, and larger gaps for the induction-linear accelerator, free-electron-laser (FEL) program. In the laced wiggler design, permanent magnets are located (laced) between the electromagnetic coils to increase the reverse-bias flux in the iron pole beyond that possible with only pole-edge (side) permanent magnets. This increase in reverse-bias flux allows wiggler operation at midplane magnetic-field intensities comparable to those of a hybrid permanent magnet/steel wiggler, but with field adjustability over a specified range. The maximum field intensity and tuning range are selected, within limits, for specific design requirements. The test results show good agreement with the analytical predictions and confirm the ability of the laced wiggler to attain the desired midplane magnetic flux density and tuning range. Both the nominal wiggle field along the wiggler axis and the focusing field variation are within the acceptable limits of design requirements.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Seroprevalence of brucella antibodies among persons in high-risk occupation in Lebanon (1996)

Prevalence of brucella-specific antibodies was measured in 597 persons in high-risk occupations living in 10 regions of Lebanon using the standard agglutination test (SAT), anti-human globulin (Coombs') test (AHGT) and enzyme-linked immunosorbent assay (ELISA) for measuring immunoglobulin G (IgG), IgM and IgA. The study population consisted of butchers (54%), farmers (35%), laboratory technicians (8%), abbatoir workers (2%) and veterinarians (1%), with 82% males and 18% females. The overall seroprevalence based on SAT and AHGT titres of > or = 80 was 1.7% and 15%, respectively, but seroprevalence varied by region from 0-5% in SAT and from 3.4-34% for AHGT. The overall seroprevalence based on ELISA IgG (OD > or = 0.6), IgM (OD > or = 0.6) and IgA (OD > or = 0.3) was 57, 61 and 26%, respectively. The highest seroprevalence was noted in Biqaa (34%), Kisrwan (24%), Shouf (21%), Sidon (16%) and Aley (12%) regions. Nineteen percent of those surveyed reported symptoms that could be associated with brucellosis. We conclude that exposure to brucellosis is high among persons in high-risk occupations from all surveyed regions in Lebanon. Such findings should be used to design control measures especially now that the 17 years of civil strife is over.
A “Chimie Douce” Sythesis of Perovskite-Type SrTa<sub>2</sub>O<sub>6</sub> and SrTa<sub>2-x</sub>Nb<sub>x</sub>O<sub>6</sub><sup>1</sup> (1998)

A disordered three-dimensional perovskite phase SrTa2-xNbxO6 (x = 0, 0.2, 0.4) is formed by topochemical dehydration of acid-exchanged Ruddelsden Popper compounds K2SrTa2-xNbxO7. The metastable perovskite is a stoichiometric precursor to the structurally unrelated, stable tetragonal tungsten bronze phase. Dehydration occurs at 350−400 °C and conversion to the tungsten bronze phase occurs about 800 °C.
Novel Biological Activity of the Region (106-126) on Human Prion Sequence. (2003)

We report that the synthetic peptide Prp106-126 (KTNMKHMAGAAAAGAVVGGLG-COOH) and the reversed peptide Prp126-106 (GLGGVVAGAAAAGAMHKMNTK-COOH) of human prion (hPrp) can express the decarboxylase activity for oxaloacetate in the presence of trifluoroethanol, similar to that of Oxaldie 1 (LAKLLKALAKLLKK-CONH2) reported previously. The degree of the relative activity of Prp106-126 and Prp126-106 to Oxaldie 1 is 0.47 and 0.21, respectively. Based on this experimental result, we applied the informational system method (ISM) developed by Veljkovic et al. to the amino acid sequence of Prp106-126 and Prp126-106 to extract a common factor. The same spectra were obtained, indicating that the same periodicity may be conserved on their sequences, as a necessary factor for expressing the same biological activity, irrespective of the orientation of the primary sequence.
How and Why Nanoparticle’s Curvature Regulates the Apparent p<i>K</i><sub>a</sub> of the Coating Ligands (2011)

Dissociation of ionizable ligands immobilized on nanopaticles (NPs) depends on and can be regulated by the curvature of these particles as well as the size and the concentration of counterions. The apparent acid dissociation constant (pK(a)) of the NP-immobilized ligands lies between that of free ligands and ligands self-assembled on a flat surface. This phenomenon is explicitly rationalized by a theoretical model that accounts fully for the molecular details (size, shape, conformation, and charge distribution) of both the NPs and the counterions.
Report on the Excavations at Stonehenge during the Season of 1924 (1926)

On behalf of Mr. Newall and myself I am making the 6th Report on the work carried out at Stonehenge which covers the season of 1924. The excavations were continued in a similar way to those of the previous year by making a succession of trenches between the rampart and the standing stones, beginning this time near no. 12 Aubrey hole and continuing towards the west. In the previous year a quadrant from north-east to south-east was searched, and it was determined to complete another quadrant from the south-east to the south-west.
Application of Task-Pilot-Vehicle (TPV) Models in Flight Simulation (2010)

The Task-Pilot-Vehicle (TPV) model structure is able to represent the combined pilot-vehicle system in order to produce realistic performance of many real-world flight tasks and maneuvers. The scheme employs a set of graphical user interfaces for running simulations, setting pilot control parameters, and analyzing results. It includes a concise method for defining flight tasks and maneuvers and pilot control strategy and technique. The TPV model has run with several vehicle math models, including CASTLE, FlightLab©, RotorGen2©, as well as linear statespace models. The current TPV model is implemented in Simulink® and uses FlightGear open-source software to provide a visual 3D display of the simulation. The TPV model scheme is useful for rapid prototyping system design and as a simulation or flight planning tool. This paper describes recent developments in the TPV model scheme and its implementation, describes several applications, and suggests some potential uses and benefits.
Mesh Topology Viewer (MTV): an SVG-based interactive mesh network topology visualization tool (2008)

This paper discusses wireless mesh network topology visualization tools and their requirements. It presents an interactive tool for visualizing mesh network topologies. The proposed tool uses the SVG — Scalable Vector Graphics — web standard, which is based on XML, to build the network map. In a wireless mesh network, link quality varies quite often, therefore the visualization tool dynamically displays the quality metric of each link, in addition to presenting router configuration information and other network statistics. This work also introduces a configuration tool designed to adapt the topology view to different wireless mesh environments.
Hydrophobic Self‐Assembly Affords Robust Noncovalent Polymer Isomers (2014)

In covalent polymerization, a single monomer can result in different polymer structures due to positional, geometric, or stereoisomerism. We demonstrate that strong hydrophobic interactions result in stable noncovalent polymer isomers that are based on the same covalent unit (amphiphilic perylene diimide). These isomers have different structures and electronic/photonic properties, and are stable in water, even upon prolonged heating at 100 °C. Such combination of covalent-like stability together with structural/functional variation is unique for noncovalent polymers, substantially advancing their potential as functional materials.
The Role of Fluorine in Glycomimetic Drug Design (2020)

Glycans are well established to play important roles at various stages of infection and disease, and ways to modulate these interactions have been sought as novel therapies. The use of native glycan structures has met with limited success, which can be attributed to their characteristic high polarity (e.g., low binding affinities) and inherently poor pharmacokinetic properties (e.g., short drug-target residence times, rapid renal excretion), leading to the development of 'glycomimetics'. Fluorinated drugs have become increasingly common over recent decades, with fluorinated glycomimetics offering some unique advantages. Deoxyfluorination maintains certain electrostatic interactions, while concomitantly reducing net polarity through 'polar hydrophobicity', improving residence times and binding affinities. Fluorination destabilizes the oxocarbenium transition state associated with metabolic degradation, and can restore exo- and endo-anomeric effects in C-glycosides and carbasugars. Lastly, it has shown great utility in radiotracer development and enhancement of antigenicity in glycan-based vaccines. Owing to synthetic challenges, fluorinated glycomimetics have been somewhat underutilized to date, but methodological improvements will advance their use in glycomimetic drugs.
Benzylamine‐Treated Wide‐Bandgap Perovskite with High Thermal‐Photostability and Photovoltaic Performance (2017)

Abstract Mixed iodide‐bromide organolead perovskites with a bandgap of 1.70–1.80 eV have great potential to boost the efficiency of current silicon solar cells by forming a perovskite‐silicon tandem structure. Yet, the stability of the perovskites under various application conditions, and in particular combined light and heat stress, is not well studied. Here, FA 0.15 Cs 0.85 Pb(I 0.73 Br 0.27 ) 3 , with an optical bandgap of ≈1.72 eV, is used as a model system to investigate the thermal‐photostability of wide‐bandgap mixed halide perovskites. It is found that the concerted effect of heat and light can induce both phase segregation and decomposition in a pristine perovskite film. On the other hand, through a postdeposition film treatment with benzylamine (BA) molecules, the highly defective regions (e.g., film surface and grain boundaries) of the film can be well passivated, thus preventing the progression of decomposition or phase segregation in the film. Besides the stability improvement, the BA‐modified perovskite solar cells also exhibit excellent photovoltaic performance, with the champion device reaching a power conversion efficiency of 18.1%, a stabilized power output efficiency of 17.1% and an open‐circuit voltage ( V oc ) of 1.24 V.
The adenosine analogue prodrug ATV006 is orally bioavailable and has potent preclinical efficacy against SARS-CoV-2 and its variants (2021)

Abstract Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which causes the COVID-19 pandemic, is rapidly evolving. Due to the limited efficacy of vaccination in prevention of SARS-CoV-2 transmission and continuous emergence of variants of concern (VOC), including the currently most prevalent Delta variant, orally bioavailable and broadly efficacious antiviral drugs are urgently needed. Previously we showed that adenosine analogue 69-0 (also known as GS-441524), possesses potent anti-SARS-CoV-2 activity. Herein, we report that esterification of the 5’-hydroxyl moieties of 69-0 markedly improved the antiviral potency. The 5’-hydroxyl-isobutyryl prodrug, ATV006, showed excellent oral bioavailability in rats and cynomolgus monkeys and potent antiviral efficacy against different VOCs of SARS-CoV-2 in cell culture and three mouse models. Oral administration of ATV006 significantly reduced viral loads, alleviated lung damage and rescued mice from death in the K18-hACE2 mouse model challenged with the Delta variant. Moreover, ATV006 showed broad antiviral efficacy against different mammal-infecting coronaviruses. These indicate that ATV006 represents a promising oral drug candidate against SARS-CoV-2 VOCs and other coronaviruses.
The thermal polymerization of amino acids revisited; Synthesis and structural characterization of hyperbranched polymers from <scp>L</scp>‐lysine (2007)

Abstract This contribution reports on the synthesis of hyperbranched polylysines via thermal polymerization of L ‐lysine hydrochloride. Polymerization of L ‐lysine hydrochloride in the presence of one equivalent KOH at 150 °C resulted in polymers with a number‐average molecular weight of 4600 g/mol and a polydispersity of 2.6 after 48 h. The rate of polymerization could be significantly enhanced and the polymer molecular weight improved by carrying out the polymerization with 3 mol % of an amidation catalyst. Among the different catalysts that were investigated Zr(O n Bu) 4 was found to be the most effective. Unequivocal support for the branched architecture of the polymers was obtained from 1 H NMR spectroscopy, which allowed the identification and quantification of the four different structural units that constitute the polymer, viz. N α and N ε linked linear units, dendritic units and terminal units. The structure of the polymers was found to be relatively independent of the reaction conditions. The degree of branching and the average number of branches varied between 0.35–0.45 and 0.15–0.25, respectively. © 2007 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 45: 5494–5508, 2007
Meta-Classification of Multi-Gene Data with Alternative Feature Mapping (2013)

In order to overcome the limitation on small size of gene datasets, many meta-classification methods which ensemble classifiers from different datasets have been developed. However, due to discrepancies of the characteristics among multiple heterogeneous datasets, the number of common and significant genes is usually small. Instead of matching common genes between heterogeneous datasets, we propose a novel solution, alternative feature mapping approach (AFM), to utilize related and discriminative gene expressions while not necessarily having exact matches. Genes in the training dataset are clustered and mapped to the test dataset as gene groups. Through analyzing the correlation within gene groups, significant genes can be matched and dataset dissimilarity factors can be used as weights for meta-classification. We conducted experiments consisting of 10 heterogeneous datasets with different cancer types and platforms. Our experiments show that classification performance is greatly improved using suitable significant genes selected by AFM, and weight voting method based on AFM provides more reliability for meta-classification.
Rest period duration of the coronary arteries: Implications for magnetic resonance coronary angiography (2005)

Magnetic resonance (MR) and computed tomography coronary imaging is susceptible to artifacts caused by motion of the heart. The presence of rest periods during the cardiac and respiratory cycles suggests that images free of motion artifacts could be acquired. In this paper, we studied the rest period (RP) duration of the coronary arteries during a cardiac contraction and a tidal respiratory cycle. We also studied whether three MR motion correction methods could be used to increase the respiratory RP duration. Free breathing x-ray coronary angiograms were acquired in ten patients. The three-dimensional (3D) structure of the coronary arteries was reconstructed from a biplane acquisition using stereo reconstruction methods. The 3D motion of the arterial model was then recovered using an automatic motion tracking algorithm. The motion field was then decomposed into separate cardiac and respiratory components using a cardiac respiratory parametric model. For the proximal-to-middle segments of the right coronary artery (RCA), a cardiac RP (<1 mm 3D displacement) of 76+/-34 ms was measured at end systole (ES), and 65+/-42 ms in mid-diastole (MD). The cardiac RP was 80+/-25 ms at ES and 112+/-42 ms at MD for the proximal 5 cm of the left coronary tree. At end expiration, the respiratory RP (in percent of the respiratory period) was 26+/-8% for the RCA and 27+/-17% for the left coronary tree. Left coronary respiratory RP (<0.5 mm 3D displacement) increased with translation (32% of the respiratory period), rigid body (51%), and affine (79%) motion correction. The RCA respiratory RP using translational (27%) and rigid body (33%) motion correction were not statistically different from each other. Measurements of the cardiac and respiratory rest periods will improve our understanding of the temporal and spatial resolution constraints for coronary imaging.
Dietary Corosolic Acid Ameliorates Obesity and Hepatic Steatosis in KK-Ay Mice (2008)

Corosolic acid (CRA), a constituent of Banaba leaves, has been reported to exert anti-hypertension, anti-hyperinsulinemia, anti-hyperglycemia, and anti-hyperlipidemia effects as well as to induce anti-inflammatory and anti-oxidative activities. The aim of this study was to investigate the inhibitory effects of CRA on the development of obesity and hepatic steatosis in KK-Ay mice, a genetically obese mouse model. Six-week-old KK-Ay mice were fed a high fat diet for 9 weeks with or without 0.023% CRA. Nine-week CRA treatment resulted in 10% lower body weight and 15% lower total fat (visceral plus subcutaneous fat) mass than in control mice. CRA treatment reduced fasting plasma levels of glucose, insulin, and triglyceride by 23%, 41%, and 22%, respectively. The improved insulin sensitivity in CRA-treated mice may be due on part to the increased plasma adiponectin and white adipose tissue (WAT) AdipoR1 levels. In addition, CRA treatment increased the expression of peroxisome proliferator-activated receptor (PPAR)α in liver and PPARγ in WAT. This is the first study to show that CRA treatment can contribute to reduced body weight and amelioration of hepatic steatosis in mice fed a high fat diet, due in part to increased expression of PPARα in liver and PPARγ in WAT.
Catalytic Protein Film Voltammetry from a Respiratory Nitrate Reductase Provides Evidence for Complex Electrochemical Modulation of Enzyme Activity (2001)

The first step in the respiratory reduction of nitrate to dinitrogen in Paracoccus pantotrophus is catalyzed by the quinol-nitrate oxidoreductase NarGHI. This membrane-anchored protein directs electrons from quinol oxidation at the membrane anchor, NarI, to the site of nitrate reduction in the membrane extrinsic [Fe-S] cluster and Mo-bis-MGD containing dimer, NarGH. Liberated from the membrane, NarGH retains its nitrate reductase activity and forms films on graphite and gold electrodes within which direct and facile exchange of electrons between the electrode and the enzyme occurs. Protein film voltammetry has been used to define the catalytic behavior of NarGH in the potential domain and a complex pattern of reversible, nitrate concentration dependent modulation of activity has been resolved. At low nitrate concentrations the local maximum observed in the catalytic current-potential profile reveals how NarGH can catalyze nitrate reduction via two pathways having distinct specificity constants, k(obs)(cat)/K(obs)(M). Catalysis is directed to occur via one of the pathways by an electrochemical event within NarGH. On increasing the nitrate concentration, the local maximum in the catalytic current becomes less distinct, and the catalytic waveform adopts an increasingly sigmoidal form. A pattern of voltammetry similar to that observed during nitrate reduction is observed during reduction of the stereochemically distinct substrate chlorate. Centers whose change of oxidation state may define the novel catalytic voltammetry of NarGH have been identified by EPR-monitored potentiometric titrations and mechanisms by which the electrochemistry of Mo-bis-MGD or [Fe-S] clusters can account for the observed behavior are discussed.
Aggression and Denominational Membership (1965)

To test the hypothesis that Catholics are extrapunitive and that Protestants are intropunitive, the Rosenzweig Picture Frustration Study was given in a battery of personality and religious belief tests to 258 students. The mean scores for extrapunitiveness were higher for the Roman Catholics than for any other group, while the Roman Catholic females have the lowest mean score on intropunitiveness. Some limitations on these findings are discussed.