gebhart/patrepeval huggingface dataset:
Efficient solar hydrogen generation in microgravity environment (2018)

Long-term space missions require extra-terrestrial production of storable, renewable energy. Hydrogen is ascribed a crucial role for transportation, electrical power and oxygen generation. We demonstrate in a series of drop tower experiments that efficient direct hydrogen production can be realized photoelectrochemically in microgravity environment, providing an alternative route to existing life support technologies for space travel. The photoelectrochemical cell consists of an integrated catalyst-functionalized semiconductor system that generates hydrogen with current densities >15 mA/cm<sup>2</sup> in the absence of buoyancy. Conditions are described adverting the resulting formation of ion transport blocking froth layers on the photoelectrodes. The current limiting factors were overcome by controlling the micro- and nanotopography of the Rh electrocatalyst using shadow nanosphere lithography. The behaviour of the applied system in terrestrial and microgravity environment is simulated using a kinetic transport model. Differences observed for varied catalyst topography are elucidated, enabling future photoelectrode designs for use in reduced gravity environments.
LINEAR ACCELERATOR FOR HEAVY IONS (1954)

Linear accelerators for the, production of ions in the rrlass region up to that of neon with energies of 1() Mev per nucleon are to be constructed at the University of California Radiation Laboratory and at Yale University.Main features of the design as presently conceived are discussed...
Composition and Antifungal Properties of Essential Oils from Five Plants Growing in the Mountainous Area of the West Cameroon (2013)

Contamination of stored foodstuffs by fungi and their toxins is a leading cause of health hazard worldwide. Therefore, there is an urgent need to search for new alternatives to encounter these drawbacks. The present study was initiated with the objective to analyze the chemical composition and to evaluate the antifungal potential of the essential oils of the leaves of five wild plants named, Caucalis melanantha, Geniosporum rotundifolium, Peperomia pellucida, Peperomia vulcanica and Pycnostachys meyeri growing in the mountainous area of Mbouda (West region of Cameroon). Gas chromatography (GC) and Gas chromatography-Mass spectrometry (GC-MS) analysis was employed to examine the chemical composition of the oils. Major constituents of G. Rotundifolium's oil were germacrene D (26.8 %), β-caryophyllene (23.0 %) and β-gurjunene (10.1 %) while the essential oil of P. meyeri had β-caryophyllene (12.1 %) and nerolidol (10.1 %) as the prominent compounds. α-terpinene (18.3 %) and β-pinene (14.0 %) were the major products of P. vulcanica oil, although sesquiterpenes represented more than 50 % of the oil. The most abundant component in the monoterpenic fraction of C. melanantha was α-pinene (35.3 %) accompanied by sabinene (16.8 %) and terpinen-4-ol (12.8 %). For P. pellucida's oil, dillapiole (37.8 %) and myristicine (11.3 %) were the main compounds. The five essential oils exhibited significant antifungal activities against Fusarium moniliforme and Rhizopus stolonifer with percentages of inhibition ranging between 46.2 and 97.3 %. The essential oils of G. rotundifolium and P. pellucida were the most active against the two fungi. The results obtained showed that these essential oils could be used as botanical fungicides for controlling phytopathogenic fungi.
<title>Modulated lapped transforms in image coding</title> (1994)

The class of modulated lapped transforms (MLT) with extended overlap is investigated in image coding. The finite-length-signals implementation using symmetric extensions is introduced and human visual sensitivity arrays are computed. Theoretical comparisons with other popular transforms are carried and simulations are made using intraframe coders. Emphasis is given in transmission over packet networks assuming high rate of data losses. The MLT with overlap factor 2 is shown to be superior in all our tests with bonus features such as greater robustness against block losses.
The Effect of Preexisting Conditions on Mortality in Trauma Patients (1990)

A case-control design was used to investigate the effects of preexisting chronic conditions on in-hospital mortality in adult trauma patients. Cases consisted of all trauma deaths (n = 3074) that occurred in 1983 in any of the 331 acute care hospitals in California. Three to four control patients (injured survivors) were matched to each case patient on the basis of injury severity, age, and individual hospital (n = 9869). The data source consisted of hospital discharge abstract data uniformly collected on all admissions to acute care hospitals in the state. Conditional logistic regression techniques were used to estimate the relative odds of dying for patients with and without one or more of 11 preexisting chronic conditions identified as potentially detrimental to outcome. The presence of cirrhosis (relative odds = 4.5), congenital coagulopathy (relative odds = 3.2), ischemic heart disease (relative odds = 1.8), chronic obstructive pulmonary disease (relative odds = 1.8), and diabetes (relative odds = 1.2) all significantly increased the risk of dying. These data provide statistical evidence to support the recommendation of the American College of Surgeons that the presence of underlying disease be considered in decisions to triage and transfer patients to trauma centers. They also underscore the importance of underlying disease in the case-mix adjustment of case-fatality rates and the identification of unexpected deaths for quality assurance review.
Diastereoselective Formation of an [η<sup>4</sup>-(1<i>Z</i>)-Sulfinyl diene]iron(0) Tricarbonyl Complex. Diastereoselective Allylation of the Derived Iron Dienal (1996)

An enantiomerically pure (1Z,3E)-sulfinyl diene exhibited a high degree of facial selectivity (α:β = 16:1) upon complexation to an iron(0) tricarbonyl fragment, producing a [η4-(1Z)-sulfinyl diene]iron(0) tricarbonyl complex (2; 80%). The iron(0)−dienal complex derived from 2 can undergo a highly diastereoselective allylation with allyltri-n-butylstannane and BF3·Et2O (diastereomer ratio 95:5); the absolute stereochemistry of the homoallylic alcohol product (4) was established by X-ray crystallography.
Effects of Pituitary and Adrenal Hormones on the Numbers of Thoracic Duct Lymphocytes (1952)

Abstract The endocrine influences of hypophysectomy, adrenalectomy, and the administration of pituitary and adrenal hormones on the level of thoracic duct lymphocytes have been studied in test animals under standardized conditions. The following effects have been noted: 1. Numbers of thoracic duct lymphocytes are elevated after either hypophysectomy or adrenalectomy in the rat. 2. After the administration of either ACTH protein or pepsin peptide mixtures to normal or hypophysectomized rats, the number of thoracic duct lymphocytes is significantly reduced. This effect was not noted in adrenalectomized rats. These effects were observed two hours after administration of the ACTH preparations. If a shorter time elapsed, no effect was noted with the ACTH protein, nor was any effect noted with an ACTH acid peptide mixture under the conditions employed. 3. Administration of epinephrine to normal or hypophysectomized rats, singly or in combination with ACTH protein (in which case its effect was potentiated), produced a significant reduction in the number of thoracic duct lymphocytes. This effect was not observed in the adrenalectomized rat, suggesting that epinephrine may act directly in producing this effect. 4. Growth hormone (beef anterior pituitary), Pitressin, Pitocin, Adrenal Cortex Extract, cortisone acetate, and desoxycorticosterone glucoside did not alter the levels of thoracic duct lymphocytes under the conditions of these experiments.
Optimal Sensor Placement for Kalman Filtering in Stochastically Forced Consensus Networks (2018)

Given a linear dynamical system affected by noise, we consider the problem of optimally placing sensors (at design-time) subject to certain budget constraints to minimize the trace of the steady-state error covariance of the Kalman filter. Previous work has shown that this problem is NP-hard in general. In this paper, we impose additional structure by considering systems whose dynamics are given by a stochastic matrix corresponding to an underlying consensus network. In the case when there is a single input at one of the nodes in a tree network, we provide an optimal strategy (computed in polynomial-time) to place the sensors over the network. However, we show that when the network has multiple inputs, the optimal sensor placement problem becomes NP-hard.
A Compact, High Efficiency, Self-Cleaning Air Filtration System for a Vehicular Gas Turbine Engine (1988)

This paper describes the design and development of a innovative filtration system for a vehicular gas turbine engine that contains a high efficiency self-cleaning element and is integrated with the propulsion system for a tenfold increase in filter service interval, a 1/3 reduction in overall pressure loss and a 40 percent reduction in package size. The system consists of self-cleaning, rotating drum barrier filter surrounded by curved vortex tube precleaner panels and mounted directly to the engine inlet. A water tight external housing is provided to give the system the necessary deep water fording capability. The conceptual design is described as well as the detailed design of both precleaner element and the self-cleaning barrier filter. The full size prototype fabrication and testing is described to demonstrate operational integrity and cleanability.
ChemInform Abstract: Nucleic Acid Related Compounds. Part 104. Synthesis of (S)‐5‐(4,5‐Dihydroxypentyl)uracil from Pseudouridine and Clarification of Stereochemistry. (1999)

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.
Communications- The Free Radical Chemistry of Cyclic Ethers: A Novel Free Radical Rearrangement (1961)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCommunications- The Free Radical Chemistry of Cyclic Ethers: A Novel Free Radical RearrangementT Wallace and R GritterCite this: J. Org. Chem. 1961, 26, 12, 5256Publication Date (Print):December 1, 1961Publication History Published online1 May 2002Published inissue 1 December 1961https://pubs.acs.org/doi/10.1021/jo01070a097https://doi.org/10.1021/jo01070a097research-articleACS PublicationsRequest reuse permissionsArticle Views122Altmetric-Citations23LEARN 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
Synthese C-8-substituierter 5-Ethoxy-6-methoxy-1,2,3,4-tetrahydroisochinoline (1983)

Die Darstellung der Titelverbindungen wird beschrieben. The synthesis of the title compounds is described.
Alcohol Withdrawal in Rats Is Associated with a Marked Fall in Extraneuronal Dopamine (1992)

Withdrawal of rats from chronic ethanol (2-5 g/kg, every 6 hr for 6 days) resulted in withdrawal symptomatology and dramatic fall in extracellular dopamine (DA) in the ventral striatum as measured by microdialysis. The changes in DA output paralleled the withdrawal symptomatology and both phenomena were reversed by a challenge ethanol dose (5 g/kg orally). The results suggest that the decrease in DA output may be responsible for the aversive symptoms of withdrawal.
Safe Neighborhood Computation for Hybrid System Verification (2015)

For the design and implementation of engineering systems, performing model-based analysis can disclose potential safety issues at an early stage. The analysis of hybrid system models is in general difficult due to the intrinsic complexity of hybrid dynamics. In this paper, a simulation-based approach to formal verification of hybrid systems is presented.
ChemInform Abstract: ANTIMICROBIAL METABOLITES FROM A PACIFIC SPONGE, AGELAS SP (1984)

Abstract Die Strukturen der Titelverbinglungen (I) (Agelin A), (II) (Agelin B) bzw. (III) (Agelasidin A) werden bestimmt.
ChemInform Abstract: The (η6‐Naphthalene) (η4‐cycloocta‐1,5‐diene)ruthenium(0) Complex as Precursor for Homogeneous and Heterogeneous Catalysts in the Isomerization of Allyl Ethers and Allyl Acetals to Vinyl Derivatives. (1997)

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.
MEMBRANE IONIC CURRENT PHOTOMODIFICATION BY ROSE BENGAL and MENADIONE: ROLE OF SINGLET OXYGEN (1994)

Abstract –Photosensitized modification of ionic leak current and potassium current was studied in frog cardiac atrial cells using whole cell patch clamp techniques. Rose bengal (RB) and menadione (MQ) were used as photosensitizers. Separate photophysical studies of the photosensitizers in deuterium oxide solution demonstrated that MQ did not produce singlet oxygen as evidenced by the lack of luminescence at 1270 nm, whereas RB was an efficient singlet oxygen generator. Both photosensitizers sensitized block of potassium current in atrial cells, and both sensitized an increase of ionic leak current. However, when photosensitizer concentrations and illumination intensities were adjusted to match the rate of block of potassium current by the two photosensitizers, there were dramatic differences in leak current increase, both quantitatively and qualitatively. Menadione sensitized a much slower increase in leak current than did RB. Further, the leak current sensitized by MQ had a more positive reversal potential than that sensitized by RB, suggesting a less potassium‐selective leak current pathway. The results suggest that, while the effects of singlet oxygen and non‐singlet oxygen modification of cell membranes may be similar, there may also be significant differences in the resulting membrane permeabilities. The results also demonstrate that MQ and RB may be useful agents to study the role of singlet oxygen versus non‐singlet oxygen modification of biological systems.
Path Following for Nonlinear Systems With Unstable Zero Dynamics: An Averaging Solution (2011)

We consider a path-following problem in which the goal is to ensure that the error between the system output and the geometric path is asymptotically less than a prespecified constant, while guaranteeing a forward motion along the path and boundedness of all states. Comparing with the results on this problem, we exploit averaging techniques to develop an alternative simpler solution for a class of nonlinear systems and for paths satisfying a certain geometric condition.
Heart Rate Variability is Related to Disease Severity in Children and Young Adults with Pulmonary Hypertension (2015)

According to our results, children with severe PH may have alterations in HRV. Since HRV appears to be related to disease severity, it may therefore serve as an additional diagnostic marker of PH. Remarkably, although Eisenmenger patients have systemic pulmonary arterial pressures, they seem to have preserved HRV, which might reflect a more favorable autonomic adaptation.
Synergistic cytotoxic effects of recombinant human tumor necrosis factor, interferons, and heat-stress. (1989)

A synergistic increase in the cytotoxic effects of recombinant human tumor necrosis factor (TNF-alpha), interferons (IFN-alpha, IFN-beta, and IFN-gamma) and heat-stress was demonstrated in vitro. The toxicity of these agents was assessed in the human cervical carcinoma HeLa cell line: the toxic effect was greatly increased when cells pretreated with IFNs or TNF were submitted to a 1-h heat-shock at 45 degrees C. Moreover if the heat-stress followed simultaneous treatment with both cytokines, a synergistic effect between these treatments could be observed. The same observations were made for two other transformed cell lines: the oral epidermoid carcinoma KB cells and the hepatocarcinoma PLC/PRF/5 cells. In contrast, the survival of normal cells (normal foetal lung MRC5 cells and foreskin F 7000 fibroblasts) was only slightly decreased by such treatments. These results suggest that combining a heat-stress with cytokines treatment might be one way of enhancing the sensitivity of cancer cells to the growth inhibitory effects of the individual cytokines.
Weibull Analysis of Electrical Breakdown Strength as an Effective Means of Evaluating Elastomer Thin Film Quality (2018)

To realize the commercial potential of dielectric elastomers, reliable, large‐scale film production is required. Ensuring proper mixing and subsequently avoiding demixing after, for example, pumping and coating of elastomer premix in an online process is not facile. Weibull analysis of the electrical breakdown strength of dielectric elastomer films is shown to be an effective means of evaluating the film quality. The analysis is shown to be capable of distinguishing between proper and improper mixing schemes where similar analysis of ultimate mechanical properties fails to distinguish.
Vaccinomics and a New Paradigm for the Development of Preventive Vaccines Against Viral Infections (2011)

In this article we define vaccinomics as the integration of immunogenetics and immunogenomics with systems biology and immune profiling. Vaccinomics is based on the use of cutting edge, high-dimensional (so called "omics") assays and novel bioinformatics approaches to the development of next-generation vaccines and the expansion of our capabilities in individualized medicine. Vaccinomics will allow us to move beyond the empiric "isolate, inactivate, and inject" approach characterizing past vaccine development efforts, and toward a more detailed molecular and systemic understanding of the carefully choreographed series of biological processes involved in developing viral vaccine-induced "immunity." This enhanced understanding will then be applied to overcome the obstacles to the creation of effective vaccines to protect against pathogens, particularly hypervariable viruses, with the greatest current impact on public health. Here we provide an overview of how vaccinomics will inform vaccine science, the development of new vaccines and/or clinically relevant biomarkers or surrogates of protection, vaccine response heterogeneity, and our understanding of immunosenescence.
Rye-Based Evening Meals Favorably Affected Glucose Regulation and Appetite Variables at the Following Breakfast; A Randomized Controlled Study in Healthy Subjects (2016)

Whole grain has shown potential to prevent obesity, cardiovascular disease and type 2 diabetes. Possible mechanism could be related to colonic fermentation of specific indigestible carbohydrates, i.e. dietary fiber (DF). The aim of this study was to investigate effects on cardiometabolic risk factors and appetite regulation the next day when ingesting rye kernel bread rich in DF as an evening meal.
Development on Aquatic Walking Robot for Underwater Inspection (1988)

Development on Aquatic Walking Robot for Underwater Inspection Mineo Iwasaki, Jun-ichi Akizono, Hidetoshi Takahashi, Toshihumi Umetani, Takashi Nemoto, Osamu Asakura, Kazumasa Asayama Pages 765-774 (1988 Proceedings of the 5th ISARC, Tokyo, Japan, ISSN 2413-5844) Abstract: An experimental model and a prototype model were made for development of underwater inspection robot. The experimental model is overground test robot that is not made watertight. The model was used for basic research and a debug tool for program development. The prototype model made watertight was developed after tests of the experimental model. The model is the first walking robot in the world that has succeeded in walking on seabed. The hardware and software of the robots are described herein. The principal features of the models are as follows. The robots are six-legged articulated insect type robots known as AQUAROBOT. Each leg has three articulations and is driven semi-directly by a DC motor that is built in the leg and has a touch sensor on the foot. The robots can walk on uneven ground and can walk in any direction without changing its quarter. Keywords: No keywords DOI: https://doi.org/10.22260/ISARC1988/0086 Download fulltext Download BibTex Download Endnote (RIS) TeX Import to Mendeley
Characterization and Optimization of Gold Nanoparticle-Based Silver-Enhanced Immunoassays (2007)

Silver-enhanced nanoparticle-labeled immunoassays provide a simple, low-cost, and effective way of detecting antigens in dilute solutions. The physical mechanisms behind their operation, however, have not been fully investigated. We present a semiquantitative approach for optimizing sandwich nanoparticle immunoassays using an adsorption-controlled kinetic model. Primary antibodies were immobilized on a solid substrate to bind the target antigens in solution. An optical signal was measured by secondary labeling of antigens with gold nanoparticles and their enhancement by silver nucleation. The opacity of the silver-enhanced spots was quantified by densitometry. The selectivity of the sandwich immunoassays was adequately high, and antigen concentrations as low as 0.1 microg cm(-3) (4 ng total) were detected reproducibly. The role of mass transfer was investigated, and a model was developed to optimize the performance of immunoassays by correlating the opacities of silver spots to the concentration and incubation times of antigens and gold nanoparticles. The results could allow the development of more rapid and reliable nanoparticle immunoassays.
A novel cyclic analog of neuropeptide Y specific for the Y<sub>2</sub> receptor (1992)

The low-molecular-mass, cyclic analog of neuropeptide Y, [Ahx5-24, gamma-Glu2-epsilon-Lys30] NPY (YESK-Ahx-RHYINKITRQRY; Ahx, 6-aminohexanoic acid; NPY, neuropeptide Y), was synthesized and investigated for receptor binding, inhibition of forskolin-stimulated cAMP accumulation, inhibition of electrically stimulated rat vas deferens contractions and ability to increase blood pressure. Like the linear peptide [Ahx5-24] NPY (YPSK-Ahx-RHYINLITRQRY), the more rigid, cyclic analog showed good correlation between receptor binding to rabbit kidney membranes and biological activity in the vas deferens assay. Binding of this peptide to a new Y2-receptor-expressing cell line was slightly reduced, compared to the linear peptide [Ahx5-24] NPY, however inhibition of cAMP accumulation was even more efficient. Unlike the linear peptide [Ahx5-24] NPY, the cyclic analog did not induce a blood pressure increase in rats. Reduced binding to Y1 receptor-expressing SK-N-MC cells, as well as the loss of capability of signal transduction, suggest that only Y2-mediated activity is preserved after cyclization. The selectivity of the cyclic compound for Y2 subtypes of NPY receptors with respect to inhibition of cAMP accumulation is more than fortyfold increased, as compared to the linear NPY-(13-36) peptide, which has been used to determine Y2 selectivity so far.