gebhart/patrepeval huggingface dataset:
Placental Basal Plate Myometrial Fibers: Clinical Correlations of Abnormally Deep Trophoblast Invasion (1996)

Placental basal plate myometrial fibers occur in ten times as many preterm births as term births. This finding is associated with both abnormal uteroplacental physiologic changes and decreased placental weight, and may explain the increased incidence of abnormalities of the third stage of labor associated with preterm delivery.
Fracture properties of steel fibre reinforced high-volume fly ash self-compacting concrete (2023)

This paper presents an experimental investigation on the fracture mechanical properties of steel fibre-reinforced high-volume fly ash self-compacting concrete (HFSCC). Specifically, self-compacting concrete (SCC) of various toughness was designed at desired steel fibre volume fractions of 0, 0.25 v%, 0.50 v%, 0.75 v% and 1.00 v% by volume and fly ash contents of 40 wt%, 50 wt%, 60 wt% and 70 wt% by mass. The fracture mechanical properties of HFSCC (cured for one year) were studied by a three-point bending beam test. The influence of fly ash and steel fibre content on fracture parameters was systematically discussed. The research indicated that the fracture mechanical properties of HFSCC with different fly ash percentage were improved by adding steel fibres. The fullness of the force (F)-crack mouth opening displacement (CMOD) curves gradually increased with the steel fibre volume fraction (Vf). The peak load (Fp), peak CMOD (CMODP), fracture toughness (KIC) and fracture energy (GF) of the fracture parameters linearly increased with Vf. Furthermore, the correlation between them was analysed numerically. The slope of the fitting line increased with increasing fly ash content, indicating that high-volume fly ash was more conducive to improving the fracture mechanics of SCC after long-term ageing. After the hydration reaction, residual calcium hydroxide was observed only in the cross-sectional image of HFSCC-70, it helped to improve the fracture mechanical properties of HFSCC.
A Low Power Dual CDS for a Column-Parallel CMOS Image Sensor (2012)

In this paper, a 320 × 240 pixel, 80 frame/s CMOS image sensor with a low power dual correlated double sampling (CDS) scheme is presented. A novel 8-bit hold-and-go counter in each column is proposed to obtain 10-bit resolution. Furthermore, dual CDS and a configurable counter scheme are also discussed to realize efficient power reduction. With these techniques, the digital counter consumes at least 43% and at most 61% less power compared with the column-counters type, and the frame rate is approximately 40% faster than the double memory type due to a partial pipeline structure without additional memories. The prototype sensor was fabricated in a Samsung 0.13 ㎛ 1P4M CMOS process and used a 4T APS with a pixel pitch of 2.25 ㎛. The measured column fixed pattern noise (FPN) is 0.10 LSB.
Analysis and Design of 130-250 GHz Frequency Multipliers (1988)

In this research the feasibility of developing high efficiency mm-wave multipliers in the frequency range of 130-250 GBz has been studied. A frequency quadrupler for 140 GBz and frequency doublers for 183 GBz and 230 GBz have been analyzed and optimized. The development of high efficiency frequency multipliers is especially important for the spaceborne mm-wave and submm-wave heterodyne receivers used for radio astronomy and remote sensing of the atmosphere.
Red blood cells from patients with pre-eclampsia induce endothelial dysfunction (2021)

This study demonstrates a novel role of the RBC in mediating the endothelial dysfunction associated with pre-eclampsia through arginase-dependent and oxidative stress-dependent mechanisms. Targeting of RBC arginase may provide a novel treatment modality for pre-eclampsia.
Thermodynamics of coal solutions (1988)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermodynamics of coal solutionsPaul C. Painter, Yung Park, and Michael M. ColemanCite this: Energy Fuels 1988, 2, 5, 693–702Publication Date (Print):September 1, 1988Publication History Published online1 May 2002Published inissue 1 September 1988https://pubs.acs.org/doi/10.1021/ef00011a016https://doi.org/10.1021/ef00011a016research-articleACS PublicationsRequest reuse permissionsArticle Views103Altmetric-Citations15LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Optical image stabilization for digital cameras (2006)

The collaboration between global electronics manufacturer, Panasonic, and lens maker, Leica, has resulted in an image stabilization system in the Lumix line of digital cameras. Called MEGA Optical Image Stabilization (MEGA OIS), the system detects camera movement before a picture is snapped. The image is stabilized using angular rate sensors, called gyrosensors, to detect how quickly the camera is moving in both vertical and horizontal directions. Then, a corrective lens is moved in the direction opposite to that of the detected data to counteract jitter. OIS can operate in two modes which provide clearer pictures compared to unstabilized systems. The MEGA OIS system is offered on ten models of Lumix digital cameras.
Silver Ion Release from Antimicrobial Acrylate Photopolymer Layers (2009)

Crosslinked silver-filled acrylate photopolymer layers on polyetheretherketone (PEEK) films were prepared by a heterogeneous photocatalytic polymerisation initiation using silver-coated titanium dioxide as a catalyst material. The silver ion release from 5 μm thick acrylate photopolymer layers was studied as a function of the chemical structure of the polymer matrix. The silver ion release increases with the number of ethoxy groups per monomer unit, although the filler content in all acrylate samples was the same (2.5 wt.% titanium dioxide coated with 1 mol.% elemental Ag). This finding can be explained on the basis of the water uptake of the polymer matrix: silver ions are generated from elemental silver particles only in the presence of water. The maximum water absorption of the photopolymers as well as the diffusion coefficient of water in the polymers increases with the number of hydrophilic ethoxy groups per monomer unit. The silver ion release from the acrylate photopolymer layers is governed by diffusion. The diffusion coefficient of silver ions, however, is at least two orders of magnitude smaller than that of water. This finding suggests that the interactions between silver ions and the polymers and/or the titanium dioxide must be stronger than the interactions between water molecules and the polymers and/or the titanium dioxide because the mobility of a diffusing species decreases if the interactions with the surrounding matrix become stronger. Acrylate photopolymer layers containing at least 6 ethoxy groups per monomer unit release an amount of silver ions of 3 μg*l -1* cm -2 or more per day. This amount is sufficient to eliminate Escherichia coli completely within 24 h.
Pharmacological analysis of cannabinoid receptor activity in the rat vas deferens (2001)

1. The interaction between the cannabinoid agonists, WIN 55,212-2 or CP 55,940 with the CB(1) receptor-selective antagonists, SR141716A or LY320135 was investigated using the rat electrically-stimulated vas deferens bioassay. 2. Tissues were stimulated by single-field pulses (150 V, 0.5 ms) delivered every 30 mins. In the presence of nifedipine (3 microM), agonists elicited a concentration-dependent inhibition of the contractile response, with pEC(50) values of 7.93 and 6.84 for WIN 55,212-2 and CP 55,940, respectively. 3. SR141716A and LY320135 caused parallel dextral displacements of the agonist concentration-response curves. However, the shift of the agonist curves by either antagonist was accompanied by a concentration-dependent enhancement of basal (agonist-independent) tissue contraction. 4. Addition of the amidase inhibitor, phenylmethylsulphonylfluoride (200 microM), resulted in a significant reduction of the basal twitch response, an effect consistent with the presence of tonic receptor activation mediated by the endogenous cannabinoid, anandamide. 5. In light of these findings, we propose a theoretical model of competitive agonist-antagonist interaction in the presence of endogenous agonist tone that was used to derive an optimized analytical approach for the determination of antagonist potency estimates under conditions of tonic receptor activation. 6. This approach yielded pK(B) estimates for SR141716A and LY320135 that were in good agreement with their activity at cannabinoid CB(1) receptors. 7. It is concluded that the rat vas deferens contains prejunctional cannabinoid CB(1) receptors that are under tonic activation from endogenous substances; under these conditions our analytical approach is preferable to the standard methods for the determination of antagonist potency.
PRTX‐100 and methotrexate in patients with active rheumatoid arthritis: A Phase Ib randomized, double‐blind, placebo‐controlled, dose‐escalation study (2014)

PRTX-100 is a highly-purified preparation of staphylococcal protein A (SpA), with immunologic activity in vitro and in animal models of immune-mediated inflammation. Following single-dose healthy volunteer studies of safety and pharmacokinetics (PK), a multicenter, double-blind, placebo-controlled, sequential dose-escalation, repeated-dose phase I trial was conducted in patients with active rheumatoid arthritis (RA) on methotrexate therapy. Patients were randomized to receive either weekly intravenous PRTX-100 (0.15, 0.45, 0.90, or 1.50 µg/kg) or placebo for 4 weeks. Safety and disease activity were assessed over 16 weeks. Pharmacokinetic profiles were obtained after the first and fourth doses. The most common treatment-related adverse events were nausea, muscle spasms, dizziness, flushing, fatigue, RA flare, and headache. No serious adverse events were considered related to PRTX-100, and none occurred in the highest dose group. Geometric mean values for plasma Cmax (ng/mL) were 4.1, 15.7, 26.5, and 51.2 for doses of 0.15, 0.45, 0.90, and 1.5 µg/kg, respectively. Anti-drug antibodies (ADAs) developed in most PRTX-100 patients, but incidence and titer were not dose-dependent. At the two highest doses, data suggest PRTX-100 may have an effect on RA disease activity, even in patients with ADAs.
ChemInform Abstract: Benzeneselenenyl Fluoride Equivalent in situ Generated with XeF2‐(PhSe) 2 in CH2Cl2 for Fluoroselenenylation of Olefins. (1991)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Improved bounds on ultralight scalar dark matter in the radio-frequency range (2022)

We present a search for fundamental constant oscillations in the range $20$~kHz-$100$ MHz, that may arise within models for ultralight dark matter (UDM). Using two independent, significantly upgraded optical-spectroscopy apparatus, we achieve up to $\times$1000 greater sensitivity in the search relative to previous work. We report no observation of UDM and thus constrain respective couplings to electrons and photons within the investigated UDM particle mass range $8\cdot 10^{-11}-4\cdot 10^{-7}$ eV. The constraints significantly exceed previously set bounds, and as we show, may surpass in future experiments those provided by equivalence-principle experiments in a specific case regarding the combination of UDM couplings probed by the latter.
3D Modeling Method of Archaeological Sites Based on Hand Drawings (2014)

The archaeological sites are important places for the studying of ancient human activities.3D modeling of archaeological sites could be helpful in the context of archaeological excavation unit representation and analysis,and therefore have great significance for the archaeological works such as ancient environmental restoration and historic preservation.Nevertheless,most of the archaeologists are still relying on hand drawings of the excavation units for their analysis and interpretation.These 2D representations are difficult to make an effective simulation of the archaeological site environment and cannot accurately repent the geometric and spatial relations of the cultural layers and the volumetric objects.In recent years,archaeologists have brought some new investigation technologies in 3D modeling of archaeological sites,but these methods cannot be applied to the archaeological sites in which excavation has been completed.To solve this problem,this paper presents a 3D modeling method of archaeological sites based on hand drawings.In this method,excavation unit is used as the basic modeling unit,and the cultural layers and the relics are modeled separately.Firstly,the excavation unit distribution diagrams and the excavation unit diagrams are used to establish the 3D models of archaeological cultural layers.Secondly,the relic diagrams are used to establish 3D models of archaeological relics.Thirdly,through 3D Boolean operations,these two models are integrated into complete 3D models of the archaeological sites.Finally,the 81-Dang east area,in Lixian County of Hunan Province has been chosen as the research region to verify the validity and practicality of this method.The research practice has proved that this method can make full use of the large amount of data accumulated in the traditional archaeological process,and is helpful to transform the qualitative descriptions of traditional archeology in macro scale to the quantitative description of modern digital archeology in microscopic scale.
Renin-Angiotensin System Blockade Is Associated with Exercise Capacity, Sympathetic Activity, and Endothelial Function in Patients with Chronic Kidney Disease (2021)

In summary, CKD patients with RASi have higher exercise capacity than those not on RASi. Higher exercise capacity in the RASi-treated group was associated with lower resting SNS activity and higher NO-dependent vascular endothelial function.
Refractive Error and Risk of Early or Late Age-Related Macular Degeneration: A Systematic Review and Meta-Analysis (2014)

Refractive error is associated with early AMD but not with late AMD. More large-scale longitudinal studies are needed to further investigate such associations.
On the ratio of two correlated normal random variables (1969)

The distribution of the ratio of two correlated normal random variables is discussed. The exact distribution and an approximation are compared. The comparison is illustrated numerically for the case of the normal least squares estimate of α|β in the linear model E(yi)=α+βυi(i=1,…,n) with uncorrelated normal error terms.
Machine learning approach for locating phase interfaces using conductivity probes (2011)

We describe a technique to measure the locations of phase interfaces (bed levels) in industrial processes, such as in sedimentation or separation. The measurement approach is based on Electrical Impedance Tomography (EIT) type technology in which the conductivity distribution of the object is estimated based on the current–voltage data of the measurement device. In this article we discuss a novel probe technique that uses machine learning methodology to estimate the bed levels. We also introduce a way to prune the set of injection and measurement electrodes to the bare minimum which makes the measurement device considerably simpler – and consequently, cheaper – to build. Results obtained through a simulation study are reported and discussed.
Visual Vehicle Egomotion Estimation using the Fourier-Mellin Transform (2007)

This paper is concerned with the problem of estimating the motion of a single camera from a sequence of images, with an application scenario of vehicle egomotion estimation. Egomotion estimation has been an active area of research for many years and various solutions to the problem have been proposed. Many methods rely on optical flow or local image features to establish the spatial relationship between two images. A new method of egomotion estimation is presented which makes use of the Fourier-Mellin Transform for registering images in a video sequence, from which the rotation and translation of the camera motion can be estimated. The Fourier-Mellin Transform provides an accurate and efficient way of computing the camera motion parameters. It is a global method that takes the contributions from all pixels into account. The performance of the proposed approach is compared to two variants of optical flow methods and results are presented for a real-world video sequence taken from a moving vehicle.
Structure and sugar-specificity of basic winged-bean lectin: structures of new disaccharide complexes and a comparative study with other known disaccharide complexes of the lectin (2008)

Crystal structures of the complexes of basic winged-bean agglutinin with the disaccharides Galalpha1-4Gal (galabiose), Galalpha1-6Glc (mellibiose) and Galalpha1-4Galbeta-Et have been determined and the complex with Galalpha1-2Gal has been modelled. The interactions of the nonreducing Gal with the lectin at the primary site are the same as those in the known complexes with disaccharides having the alpha1-->3 linkage. The second residue in Galalpha1-4Gal and Galalpha1-6Glc forms a water bridge to the lectin, while the ethyl group in Galalpha1-4Galbeta-Et makes nonpolar interactions. In complexes involving disaccharides with alpha1-3 linkages, which form part of the A and B blood-group substances, the second sugar residue forms a direct hydrogen bond to the variable loop in the binding site of the lectin. This in part explains the specificity of the lectin for the blood-group substances and also the higher affinity of alpha1-->3-linked disaccharides for the lectin compared with disaccharides involving other linkages. Including those reported here, 14 crystal structures involving the lectin, accounting for 54 crystallographically independent subunits, are available. A comparative study of these structures shows that the region involving the curved beta-sheet which nestles the metal ions is relatively rigid. The carbohydrate-binding region is perched on this region. The flat beta-sheet, which is involved in oligomerization and exhibits considerable variability in legume lectins, is relatively flexible. Indeed, the structures of basic winged-bean lectin have been of critical importance in establishing legume lectins as a family of proteins in which small alterations in essentially the same tertiary structure lead to large variations in quaternary association. They have also provided a structural explanation of the blood-group specificity of the lectin.
GPU Based Acceleration of Telegraph Equation (2008)

In a matter of just a few years, the programmable graphics processor unit has evolved into an absolute computing workhorse. With multiple cores driven by very high memory bandwidth, today's GPUs offer incredible resources for both graphics and non-graphics processing. An original mathematical method "Modern Taylor Series Method'' (MTSM) which uses the Taylor series method for solving differential equations in a non-traditional way has been developed and implemented in TKSL software. Even though this method is not much preferred in the literature, experimental calculations have shown and theoretical analyses have verified that the accuracy and stability of the Taylor series method exceeds the currently used algorithms for numerically solving differential equations. It is the aim of the paper to illustrate GPU and MTSM for numerical solutions of a telegraph line.
Datasets for Mobile, Wearable and IOT Research (2017)

The advent of affordable devices with sensors and communication capabilities has led to the proliferation of computing paradigms, such as the Internet of Things (IoT), mobile devices, and wearable technologies. For the sake of simplicity, we use the umbrella term "small devices" for these technologies. At the same time, in the past decade, the increasing availability of large datasets has shifted scientists' attention toward data science, and defined new trends in computation. Even some scientists call it an evolutionary shift that has changed the pace of scientific progress, i.e., the "fourth paradigm" [1].
Highly efficient 60-W TEM_00 cw diode-end-pumped Nd:YAG laser (1993)

We have demonstrated a diode-end-pumped Nd:YAG laser that produces an output power of 60 W in a near-diffraction-limited beam (i.e., M(2) < 1.3). In multimode operation, the laser produces an output power of 92 W. The optical-to-optical efficiency (i.e., the ratio of laser power to diode power) is 26% for TEM(00) operation and 44% for multimode operation.
[Lactose in human nutrition]. (1998)

The disaccharide lactose is naturally present as a component of foods in milk and dairy products. In the gastrointestinal tract, lactose is hydrolysed by the enzyme beta-galactosidase (lactase) into glucose and galactose. These components are absorbed. In most people lactase activity decreases at the age of approximately 2 years of age. After this lactose intake can cause symptoms of bloating, flatulence, abdominal pain and diarrhoea due to the lactose reaching the large intestine. This phenomenon is called lactose intolerance. It is generally recommended that these people abandon the consumption of milk and dairy products. However, most lactose-intolerant people are able to digest small amounts of milk (approximately 200 ml). They can also consume cheese without (hard and semi-hard cheese) or only low lactose content (only present in 10% of soft cheese). These products are a very important source of calcium.