gebhart/patrepeval huggingface dataset:
One-Pot Synthesis of Platinum Nanoparticles Embedded on Reduced Graphene Oxide for Oxygen Reduction in Methanol Fuel Cells (2011)

A simple approach has been developed for the synthesis of Pt nanoparticles with uniform diameters of approximately 2.9 nm supported on reduced graphene oxide (RG-O) platelets via a modified polyol method. Compared to Johnson Matthey (JM) Pt/C (75 wt % Pt) catalyst, the Pt/RG-O (70 wt % Pt) composite showed much higher electrochemical surface area, greater catalytic activity towards the oxygen reduction reaction (ORR), and significantly better single cell polarization performance. The maximum power density of the Pt/RG-O composite was about 128 mW cm −2 , an 11% greater than the JM Pt/C commercial catalyst.
Advances in Plasma Engineering for a Field-Reversed Mirror Reactor (1978)

Contains the results of experiments conducted on plasma engineering problems.
UV‐induced crosslinking of ring opening metathesis block copolymer micelles (2008)

Abstract Statistical and amphiphilic block copolymers bearing cinnamoyl groups were prepared by ring opening metathesis polymerization (ROMP). The UV‐induced [2 + 2] cycloaddition reaction of polymer bound cinnamic acid groups was studied in polymer thin films as well as in block copolymer micelles. In both cases, exposure to UV‐light for 10 min led to a crosslinking conversion of about 60%, as determined by FT‐IR spectroscopy and UV–vis absorption measurements. Time based IR‐spectroscopy revealed a maximum conversion of 78% reached after an irradiation time of about 16 min. For micelles obtained from polymers bearing 5 mol % or more cinnamoyl groups, the crosslinking reaction proceeded smoothly, yielding in crosslinked particles which were stable in a non‐selective solvent (CHCl 3 ). Diameters determined by dynamic light scattering in the selective solvent (MeOH) were similar for both, non‐crosslinked and crosslinked micelles, whereas diameters of crosslinked micelles in the non‐selective solvent (CHCl 3 ) were significantly larger compared to MeOH samples. This strategy of direct self assembly of block‐copolymers in a selective solvent followed by “clean” crosslinking, without the need for additional crosslinking reagents or crosslinking initiators, provides a straight forward approach toward ROMP‐based polymeric nano‐particles. © 2008 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 46: 2402–2413, 2008
Real-time, autonomous bladder event classification and closed-loop control from single-channel pressure data (2016)

Urinary incontinence, or the loss of bladder control, is a debilitating condition affecting millions worldwide, which significantly reduces quality of life. Neuromodulation of lower urinary tract nerves can be used to treat sensations of urgency in many subjects, including those with Spinal Cord Injury (SCI). Event driven, or conditional stimulation has been investigated as a possible improvement to the state-of-the-art open-loop stimulation systems available today. However, this requires a robust, adaptive, and noise-tolerant method of classifying bladder function from real-time bladder pressure measurements. Context-Aware Thresholding (CAT) has been previously shown to work well on prerecorded single contraction urodynamic data. In this work, for the first time, we present real-time detection of multiple serial bladder contractions using urodynamic recordings from human subjects with SCI and Neurogenic Detrusor Overactivity (NDO). CAT demonstrated a high degree of accuracy and noise tolerance on prerecorded data from 15 human subjects, with a mean accuracy of 92% and average false positive rate of 0.3 false positives per contraction. Analysis of event detection latencies showed that CAT identified and responded to events 1.4 seconds faster than the original human experimenter. Finally, we present a case study in which CAT was used live for real-time autonomous, closed-loop bladder control in a single human subject with SCI and NDO, successfully inhibiting four consecutive unwanted bladder contractions and increasing bladder capacity by 40%.
Electron exchange in photodeposition of poly(vinylferrocene) on platinum electrodes from methylene chloride solutions (1981)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectron exchange in photodeposition of poly(vinylferrocene) on platinum electrodes from methylene chloride solutionsD. R. Rolison, M. Umana, P. Burgmayer, and Royce W. MurrayCite this: Inorg. Chem. 1981, 20, 9, 2996–3002Publication Date (Print):September 1, 1981Publication History Published online1 May 2002Published inissue 1 September 1981https://pubs.acs.org/doi/10.1021/ic50223a048https://doi.org/10.1021/ic50223a048research-articleACS PublicationsRequest reuse permissionsArticle Views99Altmetric-Citations24LEARN 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
Evolution of microbial communities growing with carbon monoxide, hydrogen, and carbon dioxide (2017)

Microbial anaerobic conversion of carbon monoxide (CO) and syngas (mainly composed of CO, CO2 and H2) leads to the production of important industrial products, such as acetate and ethanol. The composition of CO- and syngas-converting microbial communities and the microbial interactions involved are still largely unknown. The main objectives of this study were (i) to understand the effects of CO, CO2, and H2 on the structure and function of a CO-consuming microbial community, and (ii) to identify key carboxidotrophs in the mixed culture. For this, sludge was anaerobically enriched with CO as the sole carbon/energy source at incrementally increasing CO partial pressures (PCO). Phylotypes of Methanobacteriaceae and methane production were detected at PCO ≤ 44.1 kPa. At higher PCO, enriched phylotypes were Acetobacterium, Oscillospira and Pleomorphomonas, and acetate was the main end product. The addition of CO2/HCO3- or H2 to CO fermentation increased the acetate/ethanol ratio and species diversity, compared to growth with CO as sole substrate. Phylotypes associated with Pleomorphomonas and Acetobacterium increased in relative abundance during exponential CO utilization. The Pleomorphomonas-like isolate produced H2:CO2, whereas the Acetobacterium-like isolate produced ethanol, when CO was the only electron/carbon source. These findings shed light on the interplay between syngas components and microbial communities.
Application of Nanoparticles in Stimulation: A Review (2022)

Oil well stimulation treatments have been employed to improve the productivity index, either by imposing a negative skin effect through hydraulic fracturing or by reducing a positive skin effect using matrix acidizing. The commonly used stimulation fluids are polymer-based, viscoelastic surfactant-based, emulsion (oil)-based, and foam-based. The stability and performance efficiency of the stimulation fluids under harsh conditions of high temperature and high pressures have remained a critical factor. Thus, in recent times, the incorporation of nanoparticles (NPs) as additives in the fluid formulation has received significant attention. NPs have been reported as rheology modifiers, cross-linking agents, gel breakers, leakoff control additives, foam stabilizers, proppant surface modifiers, and emulsion stabilizers in different types of stimulation fluids. In this review, we discuss the application of nanoparticles in different types of stimulation fluids. The different roles of nanoparticles are highlighted. Factors affecting the performance of nanoparticles in stimulation fluids are also covered. Although laboratory experiments have shown the exceptional performance of nanoparticles, the field application of different nanoparticles in stimulation fluids is still limited.
Design and modeling of 0:3 composite transducers (1994)

Abstract The derivation of a simple quantitative expression that assists in the design of 0:3 composite transducers is presented. This expression also yields insight into critical phenomena affecting transducer performance. Existing empirical data provides useful corroboration. It is concluded that efficient 0:3 composite transducers are only obtained when particle size distribution, ceramic volume fraction and particle packing pressure are tightly controlled.
Novel Peptide Inhibitor of Human Tumor Necrosis Factor-α has Antiarthritic Activity (2023)

<title>Abstract</title> The inhibition of tumor necrosis factor-α (TNFα) trimer formation renders it inactive for binding to its receptors thus mitigating the vicious cycle of inflammation. We designed a peptide (PIYLGGVFQ) that simulates a sequence strand of human TNFα monomer using a series of <italic>in silico</italic> methods, such as active site finding (Acsite), protein-protein interaction (PPI), docking studies (GOLD and Modeller) followed by molecular dynamics (MD) simulation studies. The MD studies confirmed the intermolecular interaction of the peptide with the TNFα. Fluorescence-activated cell sorting (FACS) and fluorescence microscopy revealed that the peptide effectively inhibited the binding of TNF to the cell surface receptors. The cell culture assays showed that the peptide significantly inhibited the TNFα-mediated cell death. In addition, the nuclear translocation of the nuclear factor kappa B (NFκB) was significantly suppressed in the peptide-treated A549 cells as observed in immunofluorescence and gelmobility-shift assays. Furthermore, peptide protected against joint damage in collagen-induced arthritis (CIA)mouse model as revealed in the microfocal-CT scans. In conclusion, this TNFα antagonist would be useful for the prevention and repair ofinflammatory bone destruction and subsequent loss in the mouse model of CIA as well as human rheumatoid arthritis (RA) patients. This calls upon further clinical investigation to utilize its potential effect as an anti-arthritic drug.
Point Clouds: Lidar versus 3D Vision (2010)

Novel automated photogrammetry is based on four innovations. First is the cost-free increase of overlap between images when sensing digitally. Second is an improved radiometry. Third is multi-view matching. Fourth is the Graphics Processing Unit (GPU), making complex algorithms for image matching very practical. These innovations lead to improved automation of the photogrammetric workflow so that point clouds are created at sub-pixel accuracy, at very dense intervals, and in near real-time, thereby eroding the unique selling proposition of lidar scanners. Two test projects compare point clouds from aerial and street-side lidar systems with those created from images. We show that the photogrammetric accuracy compares well with the lidar-method, yet the density of surface points is much higher from images, and the throughput is commensurate with a fully automated all-digital approach. Beyond this density, we identify 15 additional advantages of the photogrammetric approach.
Presence of CD 16 on Endothelial Cells in Heart Transplant Rejection: an Immunohistochemical Study (1992)

We studied the distribution of Fc gamma RIII (CD16) in human lymphoid and non-lymphoid tissue by immunohistochemistry and two-colour immunofluorescence. In all tissues except stomach, skin, muscle and heart, infiltrating cells were stained. In tonsil and thymus, the CD16 antibody CLBgran 1 labelled some cells with high endothelial morphology in T-cell areas. Two-colour fluorescence combination of CD16 and antibody to Von Willebrand factor confirmed the endothelial nature of the CLB gran 1-positive cells. Fc gamma RIII expression was also demonstrated by antibody CLBgran11, which detects a product of the Fc gamma RIII-B gene of only the NA1 haplotype. A series of 95 endomyocardial biopsies (EMB) taken after heart transplantation was evaluated for Fc gamma RIII expression. In 18 cases Fc gamma RIII was unambiguously detected on endothelial cells by CD16 antibody CLBgran1. There was a significant correlation between capillary CD16 expression and transplant rejection. We conclude that Fc gamma R expression on endothelium represents endothelial activation found in immunopathological and inflammatory conditions.
Stable operation of a powerful 3-Hz line-tunable TEA-CO2 oscillator-amplifier system (1990)

We report a medium-repetition-rate, highpeak-power CO 2 oscillatoramplifier chain producing 10.6 m pulses of up to 10 14 W/cm 2 for use in intense-laser-interaction experiments. It has a simple provision for reducing retroreflections. Parasitic oscillation and amplified back reflections are deleterious phenomena often associated with high gain laser amplifier chains. Because the gain duration of atmospheric amplifiers is relatively long, a long optical delay (about 50 m or more) is installed to reduce the amplifier gain before any back-reflected energy maybe amplified. 1 Electro-optic crystals, plasma switches, or saturable absorber gas are often used to isolate the reflection. The latter method is the simplest. It depends on the relaxation time of the gas. A popular choice of SF6/He is not sufficient. We found that SF6:C2H6::5:760 mixture takes only 11 ns to relax. 2 Situating such a saturable absorber cell in the amplification chain, therefore, substantially reduces amplified retroreflections without the need for high pressure gain modules or optical delays, and it simultaneously provides contrast enhancement. Our laser now routinely operates at 3 Hz, 1 ns, and 1 J/pulse for experiments on tunnel ionization of atoms and molecules.
Thermal ring annulation of .alpha.-vinylcinnamate methyl esters. A method for the generation of 3,4-dihydro-2-naphthoate and 2-naphthoate methyl esters (1988)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermal ring annulation of .alpha.-vinylcinnamate methyl esters. A method for the generation of 3,4-dihydro-2-naphthoate and 2-naphthoate methyl estersJoseph R. ZoellerCite this: J. Org. Chem. 1988, 53, 20, 4716–4719Publication Date (Print):September 1, 1988Publication History Published online1 May 2002Published inissue 1 September 1988https://pubs.acs.org/doi/10.1021/jo00255a010https://doi.org/10.1021/jo00255a010research-articleACS PublicationsRequest reuse permissionsArticle Views254Altmetric-Citations7LEARN 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
Oncostatin M and Nivolumab Affect the Cytotoxic T-Cell Proportions and the Susceptibility to TRAIL-Induced Death in Non-Leukocyte Cell Subpopulations in Soft Tissue Sarcomas (2023)

In conclusion, the biological efficacy of OSM is reflected in the tumor microenvironment rather than in the peripheral blood of the patients in our cohort, and nivolumab could potentiate its mechanism of action in selected cases. Nevertheless, more histotype-tailored studies are needed to fully understand the functions of OSM in STSs.
Assessing therapeutic effectiveness of scalp treatments for dandruff and seborrheic dermatitis, part 2: the impact of gender and ethnicity on efficacy (2012)

Through the use of both expert symptom grading and objective biomarker assessments, therapeutic efficacy of a potentiated zinc pyrithione shampoo was found to be independent of gender and ethnicity, being consistent with the lack of functional differences in skin from these populations.
Transparent Resource Allocation to Exploit Idle Cluster Nodes in Computational Grids (2006)

Clusters of workstations are one of the most suitable resources to assist e-scientists in the execution of large-scale experiments that demand processing power. The utilization rate of these machines is usually far from 100%, and hence this should motivate administrators to share their clusters to grid communities. However, exploiting these resources in computational grids is challenging and brings several problems. This paper presents a transparent resource allocation strategy to harness idle cluster resources aimed at executing grid applications. This novel approach does not make use of a formal allocation request to cluster resource managers. Moreover, it does not interfere with local cluster users, being non-intrusive, and hence motivating cluster administrators to publish their resources to grid communities. We present experimental results regarding the effects of the proposed strategy on the attendance time of both cluster and grid requests and we also analyze its effectiveness in clusters with different utilization rates.
Lateral Supramalleolar Flap for Treatment of Intractable Infected Bursitis of Lateral Malleoulus. (1998)

We successfully treated intractable infected lateral malleolar bursitis with radical dèbridement and lateral supramalleolar flap in 4 patients. The lateral supramalleolar flap, described by Masquelet, is a fasciocutaneus flap supplied by the perforating branch of the peroneal artery. All 4 patients were male whose age at surgery ranged from 49 to 58 (mean 54 year-old). All patients showed some complications, such as hypesthesia in both legs with cervical myelopathy, akinesia with schizophrenia, anesthesia in both legs with meningocele and alcoholic polyneuritis. The preoperative period of the conservative treatment ranged from 6 weeks to 3 years 9 months (mean 2 years and 5 months). Skin defect after radical debridement of the bursitis including resection of the bony spur was covered with lateral supramalleolar flap (length 4-7cm, width 4-5cm). Skin graft was performed to cover the donor site. The length of follow-up ranged from 3 months to 5 years (mean 2 years and 5 months). All flaps survived completely and there has been no recurrence of the bursitis. We consider lateral supramalleolar flap the treatment of choice for the coverage of the lateral malleolus. The advantages of this flap included relatively large size, and stable blood flow by orthograde flow.
Spray‐Flame‐Prepared LaCo1–xFexO3 Perovskite Nanoparticles as Active OER Catalysts: Influence of Fe Content and Low‐Temperature Heating (2020)

Abstract Spray‐flame synthesis was used to produce high‐surface‐area perovskite electrocatalysts with high phase purity, minimum surface contamination, and high electrochemical stability. In this study, as‐prepared LaCo 1–x Fe x O 3 perovskite nanoparticles (x=0.2, 0.3, and 0.4) were found to contain a high degree of combustion residuals, and mostly consist of both, stoichiometric and oxygen‐deficient perovskite phases. Heating them at moderate temperature (250 °C) in oxygen could remove combustion residuals and increases the content of stoichiometric perovskite while preventing particle growth. A higher surface crystallinity was observed with increasing iron content coming along with a rise in oxygen deficient phases. With heat treatment, OER activity and stability of perovskites improved at 30 and 40 at.% Fe while deteriorating at 20 at.% Fe. This study highlights spray‐flame synthesis as a promising technique to synthesize highly active nanoscale perovskite catalysts with improved OER activity.
Packaging effects on a CMOS low-noise amplifier: Flip-chip versus wirebond (2009)

A model-based study is presented to compare the effects between flip-chip and wirebond package on a low-noise amplifier (LNA) in a 2.4 GHz CMOS wireless local area network (WLAN) receiver. To construct the package electrical models, specific modeling dies are designed to help extract the equivalent-circuit parameters from measured S-parameters for chip-package interconnects. Furthermore, the ground proximity effects on on-chip spiral inductors in a flip-chip package are also modeled in this study. Excellent agreement between modeling and measurement is obtained up to 20 GHz for a 64-pin flip-chip ball grid array (FCBGA) package and a 64-pin wirebond quad flat nonlead (QFN) package. In practical applications, the established package models are used to predict the RF specifications of a 2.4 GHz CMOS LNA when packaged in the above two packages. Consequently, chip-package co-simulation achieves a good agreement with measurement, and thus can persuasively account for the effects caused by the two different packages.
A compact 6-axis IMU combining low-power operation with high stability and low noise (2022)

This paper presents design, architecture and characterization results of STMicroelectronics LSM6DSV16X 6-axis Inertial Measurement Unit (IMU). Traditional consumer-grade IMUs have been split into low-power sensors intended for Wearable … IoT applications [1], [2] and consumer High-End sensors offering improved stability of the gyroscope and accelerometer parameters [3], [4], [5] as result of increased power consumption. LSM6DSV16X presents the traditional compact footprint of 2.5 x 3.0 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> housed in a plastic full mold LGA package and it is the first sensor to offer state-of-the-art stability performance, Zero Rate Level (ZRL) temperature drift of ± 5 mdps/K, Zero-g Level (ZgL) temperature drift lower than ± 0.1 mg/K together with 650 µA current consumption in high-performance mode, combined with extremely low gyroscope noise of 2.8 mdps/√(Hz).
Age-related inflammatory bone marrow microenvironment induces ineffective erythropoiesis mimicking del(5q) MDS (2017)

Anemia is characteristic of myelodysplastic syndromes (MDS). The mechanisms of anemia in MDS are unclear. Using a mouse genetic approach, here we show that dual deficiency of mDia1 and miR-146a, encoded on chromosome 5q and commonly deleted in MDS (del(5q) MDS), causes an age-related anemia and ineffective erythropoiesis mimicking human MDS. We demonstrate that the ageing bone marrow microenvironment is important for the development of ineffective erythropoiesis in these mice. Damage-associated molecular pattern molecules (DAMPs), whose levels increase in ageing bone marrow, induced TNFα and IL-6 upregulation in myeloid-derived suppressor cells (MDSCs) in mDia1/miR-146a double knockout mice. Mechanistically, we reveal that pathologic levels of TNFα and IL-6 inhibit erythroid colony formation and differentially affect terminal erythropoiesis through reactive oxygen species-induced caspase-3 activation and apoptosis. Treatment of the mDia1/miR-146a double knockout mice with all-trans retinoic acid, which promoted the differentiation of MDSCs and ameliorated the inflammatory bone marrow microenvironment, significantly rescued anemia and ineffective erythropoiesis. Our study underscores the dual roles of the ageing microenvironment and genetic abnormalities in the pathogenesis of ineffective erythropoiesis in del(5q) MDS.