gebhart/patrepeval huggingface dataset:
A piezoelectric sandwich structure for harvesting energy from tire strain to power up intelligent tire sensors (2019)

Intelligent tires are used in autonomous vehicles where a considerable amount of monitoring shall be placed to avoid fatal damages. Accordingly, parameters like tire pressure, temperature, friction and contact-patch dimensions in an autonomous vehicle should be continuously tracked via sensors embedded on tires. These sensors need a source for power to operate properly. Energy harvesting systems can play an important role in extracting energy from sources that are already being wasted while there is a potential to sustain the amount of energy for sensors. In this study, a new geometry of strain-based piezoelectric energy harvester inspired from geometry of Cymbal piezoelectric energy harvesters is proposed to preserve a significant fraction of tire strain energy. Multiphysics modeling and finite element analysis using COMSOL Multiphysics software are employed and the output electric energy and voltage of the energy harvester are about 7 V, 5 mW and 90 μJ/rev, respectively. The obtained amount of output energy is sufficient to power tire sensors.
Procesos dinámicos locales para la conservación in situ de la diversidad genética de tubérculos andinos cultivados en el microcentro de Candelaria (Cochabamba, Bolivia) (2007)

Para mejorar el conocimiento sobre los procesos locales de conservacion in situ de la diversidad genetica de tuberculos andinos en el microcentro de biodiversidad de Candelaria, se levanto un censo de variedades manejadas por las familias campesinas. Se ha analizado la influencia de factores socioeconomicos como el acceso a medios de extension y capacitacion directa, fuente de ingresos economicos familiares, nivel de bienestar de la familia y edad del jefe de familia sobre las decisiones de los agricultores para la gestion local de la agrobiodiversidad. Se establecio que la papa es el cultivo mas diversificado entre los tuberculos andinos de Candelaria con una poblacion varietal de 51 variedades, seguida de la oca con 18 variedades y el isano con 13 variedades. El 80% de estas variedades son de distribucion ?poco frecuente? o ?rara? ya que se encuentran en posesion de menos del 25% de la poblacion y deben ser monitoreadas para alertar a la poblacion sobre el riesgo de perdida y para restituir su importancia local. El resto de las variedades son mas estables. La capacitacion directa de los agricultores de Candelaria en Escuelas del Campo y Comites de Investigacion Agricola Local influyo positivamente en la conservacion de un numero mayor de variedades, mientras que otros factores socioeconomicos tienen poca o ninguna influencia sobre la conservacion de las poblaciones varietales.
Synthesis and study of antiprotozoal activity of some 5-nitrothiophene aldimines. (1991)

This paper reports on the synthesis and the antiparasitical activity of some 5-nitrothiophene aldimines variously substituted on aniline nucleus. The influence of substituents on the activity of the prepared compounds is discussed.
Hereditary Nonpolyposis Colorectal Cancer (1994)

(1994). Hereditary Nonpolyposis Colorectal Cancer. Scandinavian Journal of Gastroenterology: Vol. 29, No. 8, pp. 673-677.
Temporal Organization of Atrial Activity and Irregular Ventricular Rhythm During Spontaneous Atrial Fibrillation: (2000)

In the horse, AF is a complex arrhythmia characterized by a high degree of underlying periodicity. The inverse AA-to-RR interval relationship and reduced variability of RR intervals after quinidine suggest that the ventricular response during AF results from rate-dependent concealment of AF wavelets bombarding the AV node, which nevertheless results in a significant degree of short-term predictability of beat-to-beat changes in RR intervals.
Preclinical and Early Human Studies of Calcium and Colon Cancer Prevention (1999)

Colorectal cancer continues to be a major cause of tumor mortality in the United States and other countries; despite attempts to improve the screening of high-risk populations, the incidence of this disease is still very high. Therefore, chemoprevention continues to be an important goal for the primary prevention of colorectal cancer. Among recent chemopreventive approaches, the administration of calcium and vitamin D continue to be evaluated in both preclinical and clinical studies. Many experimental findings described below have indicated associations between high calcium and vitamin D intake and decreased risk for colorectal cancer.
Specificity of carnitine action on fatty acid oxidation by heart muscle (1962)

Carnitine (ß-hydroxy, γ-trimethylammonium butyrate), at concentrations of 10 –5 m and more, increased the oxidation of long-chain fatty acids severalfold by heart muscle particulates incubated under optimal conditions. CoA dependency could be demonstrated in the presence of carnitine but not in its absence. Of a variety of compounds tested for carnitinelike activity, only acetylcarnitine and ß-hydroxy, γ-dimethylaminobutyrate ("norcarnitine") influenced palmitate oxidation in the assay system. Activity was abolished by removal of the hydroxyl group on the ß carbon; by replacement of the carboxyl group with either a cyano, an alcohol, or an amide grouping; or by substitution of an amino group for the trimethylammonium moiety of the molecule. Nonspecifically tritium-labeled carnitine was not degraded by heart particulates during incubation, indicating that carnitine acted catalytically to enhance fatty acid oxidation. The physiological significance of the data was discussed.
Decomposition of Semi-Nonnegative Semi-Symmetric Three-Way Tensors Based on Lu Matrix Factorization. (2012)

International audience
Robust Hough Transform Based 3D Reconstruction from Circular Light Fields (2018)

Light-field imaging is based on images taken on a regular grid. Thus, high-quality 3D reconstructions are obtainable by analyzing orientations in epipolar plane images (EPIs). Unfortunately, such data only allows to evaluate one side of the object. Moreover, a constant intensity along each orientation is mandatory for most of the approaches. This paper presents a novel method which allows to reconstruct depth information from data acquired with a circular camera motion, termed circular light fields. With this approach it is possible to determine the full 360Â° view of target objects. Additionally, circular light fields allow retrieving depth from datasets acquired with telecentric lenses, which is not possible with linear light fields. The proposed method finds trajectories of 3D points in the EPIs by means of a modified Hough transform. For this purpose, binary EPI-edge images are used, which not only allow to obtain reliable depth information, but also overcome the limitation of constant intensity along trajectories. Experimental results on synthetic and real datasets demonstrate the quality of the proposed algorithm.
Genetics‐Based Analytical Methods for Bacteria and Fungi in the Indoor Environment (2006)

This chapter contains sections titled: Introduction Genetics-Based Analytical Techniques Applications of Genetics-based Methods for Indoor Microbiological Analyses Quality Control/Quality Assurance and other Challenges Outlook for the Future
Contamination of Membrane-Electrode Assemblies by Ammonia in Polymer Electrolyte Fuel Cells (2009)

Experimental and computational investigation of contamination of polymer electrolyte fuel cell (PEFC) membranes and catalyst layers with ammonia (NH3) is reported. Cyclic voltammetry (CV) scans and electrochemical impedance spectroscopy (EIS) analyses show that trace amounts of ammonia can significantly contaminate both the polymer electrolyte membrane (PEM) and the catalyst layers. The results show that the catalyst layer contamination can be reversed under certain conditions, while the membrane recovery tends to be much slower, and permanent effects of ammonia contamination is observed. A model is also developed to predict the degradation of the cell performance due to the decrease in membrane conductivity. The model incorporates Nernst-Planck equations to represent the multi-component cationic transport across the membrane, which helps differentiate between the degradation due to internal resistance and contamination of the catalyst layers. Mechanisms of contamination of the polymer electrolyte and catalyst layers, and performance degradation of the PEFC are also postulated.
Spectrofluorimetric Methods for Estimating and Studying the Interactions of Polysaccharides in Biological Systems (1978)

The fluorescence characteristics of Acridine Orange bound to naturally occurring and synthetic anionic polysaccharides can be distinguished from free Acridine Orange, and is the basis for the quantitative estimation of these materials. By suppressing the ionization of individual anionic groups, sulphated polysaccharides can be estimate d i n the presence of carboxylated polysaccharides, and the proportions of the 0- and N- sulphate groups relative to carboxylic groups within the same polyanion (e.g. in heparin] determined. Proteins, lipids, fats, and salts, which can occur in biological systems and food products, interfere with the basic procedure, but modifications have been introduced to allow the analysis to be undertaken in the presence of these additivies. The method has permitted the quantitative study of interactions between proteins and glycosaminoglycans. The extent to which such interactions occur under physiological conditions is assessed.
Induced Pluripotent Stem Cells Can Be Used to Model the Genomic Imprinting Disorder Prader-Willi Syndrome (2010)

The recent discovery of induced pluripotent stem cell (iPSC) technology provides an invaluable tool for creating in vitro representations of human genetic conditions. This is particularly relevant for those diseases that lack adequate animal models or where the species comparison is difficult, e.g. imprinting diseases such as the neurogenetic disorder Prader-Willi syndrome (PWS). However, recent reports have unveiled transcriptional and functional differences between iPSCs and embryonic stem cells that in cases are attributable to imprinting errors. This has suggested that human iPSCs may not be useful to model genetic imprinting diseases. Here, we describe the generation of iPSCs from a patient with PWS bearing a partial translocation of the paternally expressed chromosome 15q11-q13 region to chromosome 4. The resulting iPSCs match all standard criteria of bona fide reprogramming and could be readily differentiated into tissues derived from the three germ layers, including neurons. Moreover, these iPSCs retain a high level of DNA methylation in the imprinting center of the maternal allele and show concomitant reduced expression of the disease-associated small nucleolar RNA HBII-85/SNORD116. These results indicate that iPSCs may be a useful tool to study PWS and perhaps other genetic imprinting diseases as well.
SIMKK, a Mitogen-Activated Protein Kinase (MAPK) Kinase, Is a Specific Activator of the Salt Stress-Induced MAPK, SIMK (2000)

Stefan Kiegerl, Francesca Cardinale, Christine Siligan, Andrea Gross, Emmanuel Baudouin, Aneta Liwosz, , Sandra Till, , Heribert Hirt, Irute Meskiene, SIMKK, a Mitogen-Activated Protein Kinase (MAPK) Kinase, Is a Specific Activator of the Salt Stress-Induced MAPK, SIMK, The Plant Cell, Vol. 12, No. 11 (Nov., 2000), pp. 2247-2258
CANADA AND ITS MAJOR REGIONS: BOUCHETTE, PARKIN, ROGERS, INNIS, HUTCHISON (1999)

Through their analyses and interpretations of Canada's major regions, selected significant authors from the early‐19th to the mid‐20th century provide a deeper understanding of Canada. Each author reveals the geographical circumstances and life of the country for the period in which he writes. Joseph Bouchette in the 1830s grapples with devising regional divisions in British North America in a mercantilist era and when parts of the continent were only dimly known; George R. Parkin and J.D. Rogers in the 1890s and 1910s depict Canadian regions in the process of being transformed in the decades when the CPR finally made it possible for Canada to function effectively across an entire continent; Harold Innis in the 1920s links the origin of the CPR to its regional underpinnings, in the context of sectional power relationships; and Bruce Hutchison in the 1940s and 50s portrays the ‘personality’ of Canada's regions, and regional tensions through the lives and perceptions of inhabitants in the various sections. The thick slice of Canadian regional writing represented by these authors shows that regions change profoundly, but regional and cultural distinctiveness persists, and that sectional rivalries have deep roots. Une sélection d'écrivains connus ayant vécu entre la première moitié du 19 ème siècle nous offre une compréhension plus approfondie du Canada grâce à leurs analyses et à leurs interprétations des plus importantes régions du Canada. Chaque auteur révèle les conditions géographiques et la vie du pays à l'époque à laquelle il écrit. Au cours des années 1830, Joseph Bouchette travaille à délimiter les divisions régionales de l'Amérique du Nord britannique à une époque mercantiliste, époque où certaines parties du contient étaient fort peu connues; au cours des années 1890 et 1910, George R. Parkin et J.D. Rogers décrivent les régions du Canada en train d'évoluer au cours des décennies où le CPR rend enfin possible l'ouverture du Canada d'un bout à l'autre du continent, assurant ainsi le fonctionnement efficace du pays; au cours des années 1920, Harold Innis rattache l'origine du CPR aux conditions préexistant dans les régions, dans le contexte d'une dynamique des pouvoirs opérante entre ces régions; au cours des années 1940 et 1950, Bruce Hutchinson fait le portrait de la ‘personnalité’ de chaque région du Canada ainsi que des tensions interrégionales à travers la vie et les perceptions de leurs habitants. L'importante somme des témoignages écrits sur les régions du Canada tels qu'offerts par ces auteurs démontre que les régions se transforment profondément, mais que les distinctions régionales et culturelles demeurent et que les rivalités entre régions ont de profondes racines.
Assessment of Chronically Implanted Subcutaneous Glucose Sensors in Dogs (1999)

We developed a continuous, distributed-anode glucose sensor and now report on its use during subcutaneous implantation in dogs without diabetes. Using telemetry, we monitored sensor response to weekly administration of intravenous glucose. In a preliminary attempt to reduce fibrosis around the sensor, some sensors were designed to slowly release dexamethasone (DEX). Before implantation, in vitro sensor sensitivity was similar to values obtained after explantation (0.66 +/- 0.09 vs 1.07 +/- 0.19 nA/mM, n = 9, p = ns). Sensitivity in individual animals varied substantially over time. Average longevity of sensors was 32.1 +/- 8.6 days. Device failure was caused by leakage of fluid into, or interruption of, circuitry. Lag time during glucose ascent averaged 5.8 +/- 1.0 min. In devices that became surrounded by fluid masses, lag time during descent was greater than in devices without fluid (33.7 +/- 4.5 vs 10.7 +/- 1.6 min, p < 0.001). There was a nonsignificant tendency for longevity of the six sensors that contained DEX to be greater than the eight sensors without DEX (47.2 +/- 18.7 vs 20.8 +/- 3.6 days, p = ns). The development of fluid masses surrounding electrochemical glucose sensors prolongs lag time and probably contributes to the commonly observed instability of sensitivity over time. In future long-term implant studies, it is likely that avoidance of fluid masses will improve sensor function.
Circularly polarized dielectric resonator antenna excited by dual conformal strips of unequal lengths (2001)

A circularly polarized cylindrical dielectric resonance antenna excited by two conformal strips of unequal lengths is studied experimentally. By using unequal strip lengths, two nearly degenerate orthogonal modes are excited and circularly polarized fields are generated. The measured return loss, axial ratio, radiation pattern, and antenna gain of the configuration are discussed. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 29: 348–350, 2001.
Variations in Program Loudness and Strategies for Loudness Management (2010)

Wide variations in program-to-program loudness form the basis of many viewer complaints. The first step toward a strategy for loudness management is an understanding of the problem and its magnitude. Television programs are typically delivered without a specification for loudness. As a result, the loudness of television programs can vary significantly. Some broadcast networks have requested that programs be delivered at a specified loudness. Have program producers been meeting the delivery specification? For programs delivered where loudness has not been specified, how much does loudness vary program-to-program? — In this analysis, 77 primetime television programs were recorded for analysis to determine their loudness. Loudness was measured using the International Telecommunications Union (ITU-R)BS.1770 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sup> standard. The analysis shows how consistent loudness is for a network. For networks that specify a target loudness, the analysis shows how well the target is being met.
Influenza Virus, the Plague That Will Continue to Return (2020)

Abstract This chapter focuses on the influenza virus. Even though the casualties, both military and civilian, were massive during World War I, deaths from the epidemic of influenza virus in 1918–1919 surpassed the war’s toll: some 40 to 50 million people died of influenza in less than a year. Although respiratory infection was a common companion of influenza during the 1918–1919 pandemic, pneumonia in young adults has been rare before and since. Over 80% of current and past deaths related to influenza have occurred in people over the age of 70, who most often die from secondary bacterial infections. Yet the risk is almost as great for patients of any age who suffer from chronic heart, lung, kidney, or liver disease; children with congenital abnormalities; or anyone undergoing transplant surgery or afflicted with AIDS. The last influenza pandemic recorded, the “swine flu” pandemic of 2009–2010, provided a scorecard of how far people have come in surveillance, epidemiology, vaccination, and treatments since the 1918–1919 pandemic and the four pandemics that followed.
Heterostructure solar cells (1999)

Heterostructure solar cells based on III–V compounds are studied. Record-high efficiencies are obtained for solar cells based on AlGaAs/GaAs heterostructures: 24.6% for 100-fold concentration of sunlight in outer space (AM0) and 27.5% for 100-fold concentration of the light on the ground (AM1.5). A substantial increase in radiation resistance is obtained for solar cells with a built-in Bragg mirror. Cascaded solar cells with efficiencies of up to 32% for 100 suns (AM1.5) are created and studied; in these cells the upper wide-gap materials are infrared transparent elements based on GaAs, while the lower narrow-band elements are made of GaSb or an InGaAs solid solution.
COUNTERFEIT HYBRIDS BETWEEN TRIPSACUM AND ZEA (GRAMINEAE) (1984)

Diploid (2 n = 36) Tripsacum australe Cutler and Anderson var. hirsutum de Wet and Timothy, T. cundinamarce de Wet and Timothy, T. dactyloides (L.) L. var. dactyloides and var. meridonale de Wet and Timothy, and T. laxum Nash were crossed with Zea mays L. (2 n = 20) as the pollen parent. True hybrids combine the cytologically nonreduced genome of Tripsacum (36 chromosomes) with the haploid (10 chromosomes) or more rarely diploid (20 chromosome) genome of Zea. Maternal offspring with 2 n = 36 Tripsacum chromosomes commonly result from parthenogenetic development of cytologically nonreduced eggs. Some individuals with 2 n = 36 Tripsacum chromosomes, however, resemble true hybrids in phenotype. These counterfeit hybrids incorporated Zea genetic material into their Tripsacum genomes without true fertilization having taken place. Offspring of counterfeit hybrids that were grown to maturity resembled their mothers in phenotype, and must have originated parthenogenetically. It is proposed that counterfeit hybrids are also produced in nature, and that this process contributes to origins of variation in gametophytic apomicts, and perhaps also in sexually reproducing species.
Processing, Structural and Electrical Properties of Textured Potassium Strontium Niobate (Ksr<sub>2</sub>Nb<sub>5</sub>O<sub>15</sub>) Piezoceramic Fibers (2012)

Highly [00 textured KSr2Nb5O15 (KSN) ceramic fibers were fabricated by a combination of novel alginate gelation method and templated grain growth using acicular KSr2Nb5O15 template particles. Fibers were drawn from alginate based slurries without or with 25 and 100wt% KSN template particles. A texture fraction of 0.90 was obtained in the case of 25 wt% and a single crystal like texture was obtained in the case of 100wt%. Piezocomposites with 1-3 connectivity were prepared from the KSN fibers and their electrical and electromechanical properties were investigated. Dielectric constant of 140, piezoelectric charge coefficient of 45 pC/N, remnant polarization of 16.6 μC/cm2 and electric field induced strain of up to 0.035% were obtained from piezocomposites with textured fibers.
Factors Affecting the Hydrogen Environment Assisted Cracking Resistance of an AL-Zn-Mg-(Cu) Alloy (2002)

Precipitation hardenable Al-Zn-Mg alloys are susceptible to hydrogen environment assisted cracking (HEAC) when exposed to aqueous environments. In Al-Zn-Mg-Cu alloys, overaged tempers are used to increase HEAC resistance at the expense of strength but overaging has little benefit in low copper alloys. However, the mechanism or mechanisms by which overaging imparts HEAC resistance is poorly understood. The present research investigated hydrogen uptake, diffusion, and crack growth rate in 90% relative humidity (RH) air for both a commercial copper bearing Al-Zn-Mg-Cu alloy (AA 7050) and a low copper variant of this alloy in order to better understand the factors which affect HEAC resistance. Experimental methods used to evaluate hydrogen concentrations local to a surface and near a crack tip include nuclear reaction analysis (NRA), focused ion beam, secondary ion mass spectroscopy (FIB/SIMS) and thermal desorption spectroscopy (TDS). Results show that overaging the copper bearing alloys both inhibits hydrogen ingress from oxide covered surfaces and decreases the apparent hydrogen diffusion rates in the metal.
Electrodeposition of polypyrrole films on aluminum from tartrate aqueous solution (2007)

The electrochemical synthesis of polypyrrole films on aluminum surfaces from aqueous solutions containing tartaric acid and pyrrole was performed using cyclic voltammetry and galvanostatic techniques. A mechanism that considers a porous aluminum oxide layer growing in parallel with the polymeric film explains the polypyrrole electrodeposition on aluminum surfaces. The more homogeneous the distribution of pores on the aluminum oxide layer, the smaller is the resistance offered to the polypyrrole film growth. Polypyrrole films deposited by cyclic voltammetry are much less uniform than those galvanostatically formed. Polymeric films galvanostatically deposited at higher current densities were more susceptible to overoxidation processes than those films formed at lower current densities, as demonstrated by FTIR analyses. Furthermore, films formed at low current density perform better on protecting aluminum surfaces against corrosion.