gebhart/patrepeval huggingface dataset:
Co3O4 Nanoparticle Water-Oxidation Catalysts Made by Pulsed-Laser Ablation in Liquids (2013)

Surfactant-free, size- and composition-controlled, unsupported, <5-nm, quantum-confined cobalt oxide nanoparticles with high electrocatalytic oxygen-evolution activity were synthesized by pulsed laser ablation in liquids. These crystalline Co3O4 nanoparticles have a turnover frequency per cobalt surface site among the highest ever reported for Co3O4 nanoparticle oxygen evolution catalysts in base and overpotentials competitive with the best electrodeposited cobalt oxides, with the advantage that they are suitable for mechanical deposition on photoanode materials and incorporation in integrated solar water-splitting devices.
Direct confirmation of structural differences in single Shockley stacking faults expanding from different origins in 4H-SiC PiN diodes (2020)

Structural differences are investigated in partial dislocations that have considerably different threshold current densities for single Shockley-type stacking fault (1SSF) expansions in PiN diodes using transmission electron microscopy and scanning transmission electron microscopy as direct observation techniques. It has been found that when the threshold current density is relatively low, a triangular 1SSF, whose oblique and base sides were formed with a pair of Shockley partials, was found. On the other hand, when the threshold current density is relatively high, a similar-shaped triangular 1SSF, whose three sides were almost formed by a single dislocation of one of the Shockley partials, was found. In the latter case, a conversion point from a basal plane dislocation to a threading edge dislocation was also observed around the deepest part of the epilayer. The realistic model for the formation of the triangular 1SSFs has been proposed.
A Scalable Protocol for Cooperative Time Synchronization Using Spatial Averaging (2006)

Time synchronization is an important aspect of sensor network operation. However, it is well known that synchronization error accumulates over multiple hops. This presents a challenge for large-scale, multi-hop sensor networks with a large number of nodes distributed over wide areas. In this work, we present a protocol that uses spatial averaging to reduce error accumulation in large-scale networks. We provide an analysis to quantify the synchronization improvement achieved using spatial averaging and find that in a basic cooperative network, the skew and offset variance decrease approximately as $1/\bar{N}$ where $\bar{N}$ is the number of cooperating nodes. For general networks, simulation results and a comparison to basic cooperative network results are used to illustrate the improvement in synchronization performance.
Determinants of Health-Related Quality of Life (HRQoL) in the Multiethnic Singapore Population – A National Cohort Study (2013)

Differences in HRQoL levels and determinants of HRQoL among ethnic groups underscore the need to better or differentially target population segments to promote well-being. More work is needed to explore HRQoL and wellness in relation to ethnicity.
A Wireless ECoG Recording System to Detect Brain Responses to Tactile Stimulation (2023)

Many neural recording systems with wired connections to electrodes have suffered from the disadvantage that the wired connections restrict the movement of the subject. To overcome this restriction, wireless neural interfaces have been developed. However, due to the adoption of low transmission rates and protocols in the medical implant communication service band, it has been challenging to develop a high-resolution wireless recording interface that can utilize the functionality of multichannel electrodes at maximum. In this study, we developed a high-throughput wireless recording system assembled using only off-the-shelf components, resulting in a lightweight of 2.1 g. The developed wireless system can transmit 32 channels of neural signals with up to 30 kHz sampling rate per channel and 16-bit analog-to-digital conversion (ADC) resolution seamlessly. The system was connected to a flexible 32-channel electrocorticogram (ECoG) electrode array, and successfully recorded somatosensory evoked potentials (SEPs) from the in vivo brain in response to tactile stimulation, demonstrating a high signal-to-noise ratio (SNR), and high spatial and temporal resolutions in wireless neural signal recording.
Conoscopic optical probes: a new generation of metrological instruments (1994)

Conoscopic holography is an interferometric technique based on light propagation in crystals. Conoscopic optical probes overcome the main limitations of 3D optical measurement, namely complexity, unreliability, and low precision. Although some systems were designed before, conoscopic probes are operational today as industrial items due to the availability of new improved optical components and the new capacities of low cost numerical processing.
Recent Advances in Ultrafast Fiber Lasers (1999)

The current status of ultrafast fiber lasers is reviewed. Recent advances in passively modelocked fiber oscillator designs, femtosecond fiber amplifiers as well as nonlinear frequency conversion techniques are discussed.
Electrode/Electrolyte Interface Studies in Lithium Batteries Using NMR (2011)

The importance of interfaces in Li-ion batteries cannot be overstated. In this paper, the NMR approach is developed to extract the information on the electrode/electrolyte interphase in lithium battery materials, to probe the evolution of electrochemical behavior and/or failure mechanisms in the course of electrochemical cycling of lithium ion batteries. There are two approaches described, one to characterize interfacial species in non-paramagnetic materials, since NMR can be used to detect not only lithium, but also phosphorus, hydrogen, carbon, and fluorine; the other approach is to investigate paramagnetic materials using 6Li and 7Li. Coupled with techniques providing chemical information, such as XPS or FTIR, NMR is a great tool to study the interfacial processed in Li-ion batteries.
A Simple and Rapid System for Proteomic Analysis of the Archaeon Candidatus Vulcanisaeta moutnovskia (2020)

<title>Abstract</title> This protocol describes a rapid protein extraction method for the archaeon <italic>Candidatus </italic>Vulcanisaeta moutnovskia, which can be also implemented for other archaea. The utilization of two different methods for protein extraction constitute the main step of the protocol. Method I involves the extraction with a multi-chaotropic lysis buffer containing a non-denaturing zwitterionic detergent, most efficient for extracting cytosolic proteins. Method II involves a denaturing anionic detergent allowing total disruption of the membranes and capable of extracting both membrane (hydrophobic) and non-membrane (water-soluble, hydrophilic) proteins. The big advantage of the methods is to use general laboratory chemicals to make powerful extraction buffers, resulting in high quality and quantity of proteins. The methods probably are usable for any other archaea or microbial cells, and takes about 14-22 h. Following extraction and further protein digestion, 1D-nano Liquid Chromatography Electrospray Ionization Tandem Mass Spectrometric (LC ESI-MSMS) analysis with Triple TOF 5600 and Orbitrap technologies were used for protein identification and further quantification.
Wilson disease — the impact of hyperimmunity on disease activity: A case report (2021)

This hyperimmune-triggered condition may represent a new entity which per se or on top of other liver diseases induces liver inflammation responsive to steroids.
Layered Li-Co-Mn Oxide as a High-Voltage Positive Electrode Material for Lithium Batteries (2001)

A layered Li-Co-Mn oxide was synthesized from a host layered Na-Co-Mn oxide by ion-exchange technique. Its electrode performance showed anomalous high redox potential of ca. 4.5 V vs. for the intercalation and deintercalation of lithium, although the end members of solid solution and did only 4.0 V. The oxidation state of the cobalt was measured by X-ray photoelectron spectroscopy and was trivalent. © 2001 The Electrochemical Society. All rights reserved.
Preparation of long circulating 18F-labeled liposomes via conventional maleimide-thiol coupling for PET imaging (2012)

1572 Objectives Liposomes are tiny unilamellar vesicles comprised of phospholipid bilayers with an aqueous interior. Long-circulating [18F]liposomes may be useful blood-pool agents for PET imaging[1], but are difficult to prepare practically through an intermediate 18F-lipid. The goal of this study was to therefore develop a method to enable the direct fluorine-18 radiolabeling of preformed liposomes. Methods A fluorine-18 labeled 2-(2-(2-(2-fluoroethoxy)ethoxy)ethoxy)ethanethiol was prepared by the reaction of its trityl protected mesyl precursor with [18F]TBAF followed by deprotection of the thiol group with trifluoroacetic acid. Maleimide-PEG liposomes (diameter of 70 nm) were obtained by sonication of a lipid mixture consisting of DPPC, cholesterol and DSPE-PEG2000 (61:30:9) in acetate buffer (pH 6.5) followed by continuous high-pressure extrusion. Final conjugation of the maleimide-PEG liposome with [18F]thiol in 0.1M acetate buffer (0.1% EDTA), pH 6.5-8.0, in the presence of TCEP for 20 min gave the [18F]liposome. The product was purified by a mini-PD MiniTrap G-25 column. The pharmacokinetics and imaging potential of these batches were evaluated in rats using micro PET imaging. Results The conjugation yield determined by HPLC was 74-92%. DLS analysis of the [18F]liposomes indicated that coupling with [18F]thiol did not have any major effect on size (diameter of 75 nm). The overall radiochemical yield of the reaction was 10-25% (n= 12, uncorrected) in a 180 minute radiolabeling time. The images obtained from the rats had high blood retention over 4 h and were comparable to images obtained from previous synthetic methods. Conclusions We have successfully radiolabeled a preformed liposome via conjugation of a maleimide-PEG-functionalized liposome with the thiol group of 2-(2-(2-(2-[18F]fluoroethoxy)ethoxy)ethoxy)ethanethiol. Research Support This study was funded by the intramural program of the National Institutes of Health
Threshold level photoablation of metals - Ejected ion energy distributions (1988)

Laser sources can create plasmas at metallic surfaces when radiation fluxes are above 106 W/cm2. These plasmas grow rapidly, absorbing the incident laser radiation and strongly influencing the laser coupling to the surface.
Joint Application of Superabsorption and Near-to-Far Field Transform to FDTD Analysis of Axisymmetrical Antennas (1994)

The paper presents joint application of superabsorption and near-to-far field transform to the vector 2D FDTD method for the analysis of axisymmetrical antennas. The superabsorbing operator is originally extended to apply to vector 2D modelling. The near-to-far field transform is specially reformulated to take into account the assumed azimuthal field distribution. Theoretical studies and practical examples confirm remarkable effectiveness and accuracy of the method for the analysis of axisymmetrical antennas of arbitrarily shaped and filled long-section.
Genome Sequence of Rough and Smooth Variants of Pleomorphic Strain Lactobacillus farciminis CNCM-I-3699 (2015)

The probiotic Lactobacillus farciminis CNCM-I-3699 is a pleomorphic strain exhibiting smooth and rough variants. We report their complete genomes consisting of a chromosome of 2, 4 Mb and a plasmid of 6,417 bp. The smooth variant differs by the presence of an additional plasmid of 35,418 bp.
ChemInform Abstract: PREPARATION AND CHARACTERIZATION OF TANTALUM(III) OLEFIN COMPLEXES AND TANTALUM(V) METALLACYCLOPENTANE COMPLEXES MADE FROM ACYCLIC α OLEFINS (1979)

Abstract Die Cyclopentadienyl‐Ta‐Komplexe (I) reagieren mit Ethylen oder Propylen in Pentan bei 25°C oder Pentan/Ether bzw. Toluol bei 0 °C zu den Metallacyclen (II).
A Statistical Framework for the Analysis of ChIP-Seq Data (2020)

Chromatin immunoprecipitation followed by sequencing (ChIP-Seq) has revolutionalized experiments for genome-wide profiling of DNA-binding proteins, histone modifications, and nucleosome occupancy. As the cost of sequencing is decreasing, many researchers are switching from microarray-based technologies (ChIP-chip) to ChIP-Seq for genome-wide study of transcriptional regulation. Despite its increasing and well-deserved popularity, there is little work that investigates and accounts for sources of biases in the ChIP-Seq technology. These biases typically arise from both the standard pre-processing protocol and the underlying DNA sequence of the generated data.
Pathophysiology and functional significance of apical membrane disruption during ischemia (1999)

The characteristic structure of polarized proximal tubule cells is drastically altered by the onset of ischemic acute renal failure. Distinctive apical brush border microvilli disruption occurs rapidly and in a duration-dependent fashion. Microvillar membranes internalize into the cytosol of the cell or are shed into the lumen as blebs. The microvillar actin core disassembles concurrent with or preceding these membrane changes. Actin and its associated binding proteins no longer interact to form these highly regulated apical membrane structures necessary for microvilli. The resultant epithelial cells have a reduced apical membrane surface that is not polarized either structurally, biochemically or physiologically. Furthermore, the changes in the apical microvilli result in tubular obstruction, reduced Na+ absorption, and partly explain the reduction in glomerular filtration rate. Recent evidence suggests these actin surface membrane alterations induced by ischemia are secondary to activation and relocation of the actin-associated protein, actin depolymerizing factor/cofilin, to the apical membrane domain. Activated (dephosphorylated) actin depolymerizing factor/cofilin proteins bind filamentous actin, increasing subunit treadmilling rates and filament severing. Once activated, the diffuse cytoplasmic distribution of the actin depolymerizing factor/cofilin protein relocalizes to the luminal membrane blebs. During recovery the actin depolymerizing factor/cofilin proteins are again phosphorylated and reassume their normal diffuse cytoplasmic localization. This evidence strongly supports the hypothesis that actin depolymerizing factor/cofilin proteins play a significant role in ischemia-induced injury in the proximal tubule cells.
408 Development of a Wearable Power-Assisted Orthosis on the Upper Arm (2005)

The purpose of this work is to develop of a wearable power-assisted orthosis for nursing care that reduces the physical burden on carers. The system is worn on the carer's sword arm and supports sward arm's motor ability by using an actuator. The actuator is a DC geared motor weighing 2.0 kg with a maximum output of 33.4 Nm. To control the orthosis, the system employs electromyogram (EMG) signals associated with the motion of the shoulder joint and the elbow joint angle signal to give a hands-free control system that can automatically control the DC geared motor. Experimental results clearly demonstrate the power-assisted orthosis's ability for holding support, reducing the physical burden by about 50 %.
Automated Quantification of Inherited Phenotypes from Color Images: A Twin Study of the Variability of Optic Nerve Head Shape (2010)

This preliminary study shows that quantitative phenotyping of the ONH shape from color images leads to phenotypes that can be measured and are largely under genetic control. The association of these inherited phenotypes with genotypes deserves confirmation and further study.
naf, a trans-regulating negative-acting factor encoded within the mouse mammary tumor virus open reading frame region (1990)

The mouse mammary tumor virus (MMTV) long terminal repeat (LTR) open reading frame (ORF) encodes a negative acting factor (naf). In our test system, naf mediates its effect in trans on another MMTV provirus in which the 5' LTR has been replaced by that of Rous sarcoma virus. naf effects are evidenced at the level of transcriptional initiation rather than as reduced mRNA stability. The introduction of a premature termination codon into the MMTV LTR-encoded ORF abolishes the transcriptional down regulation localizing naf within the ORF. In addition, sequences in the gag/pol genes between +320 and +646 and between +3626 and +4590 relative to the site of transcription initiation are also involved in the MMTV-mediated transcriptional down regulation.
High Temperature Metasurface Emitter for Thermophotovoltaic Energy Conversion (2016)

We demonstrated selective emission from a platinum and alumina metasurface that can survive repeated temperature cycling at 1300 K. The emitter is designed to be part of a &gt;20% efficient thermophotovoltaic power source.
An advanced equivalent circuit for a piezoelectric micromachined ultrasonic transducer and its lumped parameter measurement (2013)

In this work, we developed an advanced equivalent circuit model for a piezoelectric micromachined ultrasonic transducer. The mechanical lumped parameters and the radiation impedance were obtained by considering the double-layer plate of a unimorph circular plate. Through the equivalent circuit model, the effect of a piezoelectric layer on the mechanical lumped parameters was considered. The model-produced admittance curves were compared with the measured admittance curves of the pMUT unit to verify the equivalent circuit model. A pMUT unit with a circular silicon radiating plate (radius 600 µm, thickness 15 µm) was used for measurements.
Improvement of write error rate in voltage-driven magnetization switching (2019)

Abstract We investigate magnetization switching driven by the voltage-controlled magnetic anisotropy (VCMA) effect in two series of magnetic tunnel junctions with a Ta/CoFeB/MgO structure. We demonstrate that improved thermal stability as well as the VCMA effect make it possible to achieve write error rates lower than 10 −6 . We also show that the thermal stability of the free layer plays an important role in suppressing increased write errors due to precession-orbit transition induced by thermal fluctuation.
Genèse des sciences humaines (1999)

Ne en 1529 aParis, Etienne Pasquier a entrepris des etudes de droit apartir de 1546.Apres avoir suivi I'enseignement de Francois Hotman dans Ie quartier latin, de Jean Cujas aToulouse et de Marianus SocinusaBologne, il debuta au barreaude la capitaleal'automne 1549.Mais comme il eut peu d'affaires aplaiderpendantles six premieres annees de sa carriere, il passa beaucoup de temps alire et aecrire au debut des annees 1550.C'est ainsi qu'il concur le projet de ses Recherches de la France, dont il commenca la redaction vers 1555.Constamment remanie, complete et approfondi jusqu'a sa mort, en 1615, cet ouvrage devint l'un des livres les plus importants de la deuxieme moitie du XVI' siecle, tant par son ampleur que par sa notoriete.Des l'origine, Pasquier concut son travailcomme une eeuvre d'histoire.Dans une lettre aCujas,il decrivait en effet sa demarche de cette facon : «Je me suis mis ala recherche des anciennetez de la France; et pour cette raison,j'ay appelemon ceuvre Recherches.L'entreprise est de grand labeur, et qui requiert de feuilleter plusieurs livres anciens.» Historien de son temps, soucieux de remonter aux sources, de traquer les origines des institutions, des structures sociales ou du vocabulaire de son epoque, Pasquier adopta une methode profondement originale, atel point qu'il ne serait pas excessif de voir en lui I'un des peres fondateurs d'une « nouvelle histoire » comprise comme une science humaine devant s'affranchir de tout prejuge.U choisit ainsi d' eliminer toutes les informations qui lui apparaissaient cornme des legendesdenuees de tout fondement.Tres critique envers ses sources, il decida « [... ] de ne rien dire qui importe sans en faire preuve, ala charge que, si ceux qui viendront apres moy voguent en mesme eau (comme il sera aise de Ie faire, la premiereglace estant rompue), et me font cet honneurde reconnoistre quelque chosede may, je la leur donnebien de bon cceur, et veux qu'elle soit estimee leur appartenir, comme si elle estoit de leur tres-fonds ».Conscient que son ouvrage allait devenir une reference pour les recherches futures, Pasquier ne voulut utiliser que des documents qui lui semblaient fiables : non seulement les auteurs antiques, amplement Mites par les humanistes depuis plus d'un siecle,mais aussi les grands chroniqueurs
Somatostatin Structure-Activity Studies in the Stomach (1988)

Somatostatin may inhibit gastric exocrine functions independent of blockade of gastrin secretion. In order to further investigate this suppressive effect, somatostatin derivatives were injected to cats bearing a cannulated gastric fistula under pentagastrin stimulation. Results showed that somatostatin-14 was more potent than somatostatin-28 in this particular model. Analogues with substituted residues exhibited a variable spectrum of actions on hormone release and gastric function. A cyclic pentapeptide was deprived of gastric or GH inhibitory properties whereas the related peptide with a benzyl-protecting group on Thr was only devoid of gastric effect. The octapeptide SMS 201-995 was described as a potent inhibitor of gastric secretion in comparison with natural somatostatin in rats and also in humans, but was unable to induce maximal suppression of acid output in the cat model. Differences in gastric effect of different derivatives could be explained on the basis of binding to a selective subset of receptors, since at least two binding sites have been identified in the stomach mucosa. Serial studies with short cyclic somatostatin should help to establish a clear relationship between peptide structure and inhibition of gastric secretion.
[Eccentric projection for the observation of the root canals of the upper premolars]. (1990)

Information on the length and the shape of the root canals is necessary in dental care. They are obtained from X-ray examination of teeth. However, it is useful to apply eccentric projection for optimization in dental radiography. We observed 135 teeth and 355 films of extracted upper premolars, and tried to establish the standard of eccentric projection for the observation of root canals of the upper premolars, on the basis of the calculations and the experiments. 1. Shapes of root canals in the upper premolars are classified into 3 types with 3 subtypes. The rate of teeth with one root was 69.6%, but the rate of teeth with two root canals was 43%. These indicate the necessity of the eccentric projection in dental radiography, although there is a limit to the ability of X-ray film for confirmation of real condition of the root canals. 2. Optimal eccentric projection angle was 20 degrees-25 degrees. There is no significant difference between the paralleling technique and bisecting technique. There is no significant difference between the mesial and distal eccentric projection. But, the mesial eccentric projection is more effective for the observation of whole root and the ease of radiographic technique than the distal eccentric projection.
Discovery and Process Synthesis of Novel 2,7-Pyrrolo[2,1-f][1,2,4]triazines (2011)

The synthesis of a new kinase inhibitor template 2-anilino-7-aryl-pyrrolo[2,1-f][1,2,4]triazine is described which includes a late stage orthogonally reactive key intermediate amenable to rapid diversification as well an optimized in situ triflate displacement to install the C2-aniline. Furthermore, an efficient scalable process approach will be highlighted which begins with tert-butyl carbazate to provide the key N-N bond and generates the pyrrolotriazine core through a stable bromoaldehyde intermediate followed by condensation with ammonium carbonate.
When is speckle noise multiplicative? (1982)

Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text M. Tur, K. C. Chin, and J. W. Goodman, "When is speckle noise multiplicative?," Appl. Opt. 21, 1157-1159 (1982) Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article