gebhart/patrepeval huggingface dataset:
Efeitos diretos, indiretos e tardios: trajetórias da transmissão intergeracional da participação política (2011)

O artigo propõe um modelo para explicar o processo mediante o qual os jovens se tornam cidadãos participativos. Veremos que este ocorre de duas formas complementares. A primeira é a transmissão imediata, embora, em grande medida, estimulada por efeitos indiretos, das rotinas participativas. A segunda depende de um processo de longa duração, gerando a participação como efeito tardio. O estudo mostra que a participação política dos pais é a forma mais eficaz de se "ensinar" participação política aos filhos. Em relação às condições socioeconômicas da família, embora não transmitam participação aos filhos, são elas que criam condições mais ou menos favoráveis para o envolvimento dos pais em atividades participativas. No conjunto, os dados apontam associação entre a reprodução intergeracional da desigualdade social e da desigualdade política.
Ratificada la enmienda de la Ley de Energías Renovables: los partidos gobernantes alemanes logran ponerse de acuerdo (2008)

El dia 6 de junio, el parlamento aleman ratifico con 413 de 522 votos la enmienda de la Ley de Energias Renovables (EEG) y con ello subrayo el consenso politico que en el 2020 el 25% al 30% de la energia electrica provenga de fuentes renovables.
No obstante en visperas de la ultima lectura de la Ley en el parlamento se produjeron batallas intensas sobre todo con respecto a las futuras primas para instalaciones fotovoltaicas. Una fraccion del ala conservadora de la coalicion entre Socialdemocratas (SPD) y Conservadores (CDU/CSU) que esta gobernando el pais en la acutalidad lanzo un ataque fuerte al exigir que las primas deberian bajar en un 30% a partir del 1 de enero del 2009. Esa exigencia se baso en ciertos resultados de un estudio realizado por el reconocido Instituto RWI que fue encargado por el Ministerio de Economia, actualmente en manos conservadoras. Solo una semana antes de la ultima lectura, en la noche del 30 de Mayo, en un discurso muy agitado, los partidos gobernantes lograron ponerse de acuerdo sobre las clausulas de la Ley.
Characterization of composites based on polyoxymethylene and effect of silicone addition on mechanical and tribological behavior (2018)

Additives to polymer materials allow to obtain a wide range of functional properties. The improvement of wear and durability of plastics is achieved by the use of powder or fibrous fillers and complex modifications of structure. The aim of the work was to examine the physical, mechanical and tribological properties of modified polyacetal. As a modifiers various types of silicon, thermoplastic polyurethane and aramid fiber were used. The addition of above mentioned additives reduces the coefficient of friction and the wear rate in relation to pure polyoxymethylene, moreover used additives increase the strength properties. Studies have shown that the addition of filler allows to provide excellent tribological properties while maintaining high strength properties. POLYM. ENG. SCI., 59:935–940, 2019. © 2018 Society of Plastics Engineers
Determining the performance of a temperature sensor embedded into a mouthguard (2022)

These results show that an instrumented mouthguard with temperature sensing capabilities can yield a consistent steady-state error that is close to the clinical requirements across a range of temperatures. However, the time it takes to reach steady-state temperature needs to be considered for these systems to correctly interpret the outcomes.
Saturation of intraband absorption and electron relaxation time in n-doped InAs/GaAs self-assembled quantum dots (1998)

We have observed the saturation of intraband absorption in InAs/GaAs self-assembled quantum dots. The investigated n-doped self-assembled quantum dots exhibit an intraband absorption within the conduction band, which is peaked at an 8 μm wavelength. The saturation of the intraband absorption is achieved with an infrared pump delivered by a pulsed free-electron laser. The saturation of the transition is observed for an intensity around ≈0.6 MW cm−2. The electron relaxation time under intraband excitation is measured by time-resolved pump–probe experiments. An electron relaxation time T1≈3 ps is reported.
Preparation of a clay based superabsorbent polymer composite of copolymer poly(acrylate-co-acrylamide) with bentonite via microwave radiation (2013)

In this paper we present a fast, new and easy method for the preparation of bentonite-g-poly(acrylate-co-acrylamide) composite material using microwave radiation. The composite has water absorptivity of 1002 g/g while the corresponding copolymer is tacky and has poor gel texture. The relative thermal stability of the composite in comparison with the copolymer was proved via thermogravimetric analysis These results indicate the synergistic effect of the bentonite with the copolymer by increasing water absorptivity and enhancing thermal and mechanical properties of the final gel. The composite was characterized by X-ray and FTIR. The influence of the environmental parameters on water absorptivity such as the pH and the ionic force was investigated
“In Situ” Observation of Smelting Reduction and Carburization of Iron Ore with Carbonaceous Materials by Laser Scanning Microscope (2003)

It is a very valuable key technology to accelerate the rates of smelting reduction of iron ore and the succeeding carburization at low temperatures for lower energy consumption in the iron-making process. It is well known that the smelting reduction and carburization are very complicated phenomena, but the mechanism has not yet been brought into daylight. It is considered that the molten iron oxide containing slag among carbonaceous materials and reduced iron is strongly concerned in the phenomena. Thereupon, an experimental model is made in the present work, and “in situ” observation was made on the smelting reduction and carburization phenomena at iron-making temperatures by a laserscanning microscope. The mechanism of the phenomena is discussed based on the observed results and concentration profiles of carbon in quenched iron samples. Die Schmelzreduktion von Eisenerz und die nachfolgende Aufkohlung bei niedrigen Temperaturen zu beschleunigen, stellt eine sehr wertvolle Technologie dar, den Energieverbrauch in der Eisenherstellung zu verringern. Es ist weithin bekannt, dass die Schmelzreduktion und die Aufkohlung sehr komplizierte Erscheinungen sind, aber der Mechanismus konnte noch nicht aufgedeckt werden. Man nimmt an, dass die flüssige eisenoxidhaltige Schlacke zusammen mit kohlenstoffhaltigem Material und reduziertem Eisen eine große Rolle in diesem Phänomen spielt. Hierauf aufbauend wird in der vorliegenden Arbeit ein Versuchsmodell erstellt. Die Schmelzreduktion und die Aufkohlung werden bei Roheisentemperatur durch ein Laser-Scanning-Mikroskop “in situ” beobachtet. Auf Basis der Beobachtungsergebnisse und der Kohlenstoff-Konzentrationsprofile, die an abgeschreckten Eisenproben mit der Mikrosonde gemessen werden, wird der Reaktionsmechanismus diskutiert.
Thermodynamic Characterization of the Redox Centers within Dimethylsulfide Dehydrogenase (2008)

Dimethylsulfide (DMS) dehydrogenase is a complex heterotrimeric enzyme that catalyzes the oxidation of DMS to DMSO and allows Rhodovulum sulfidophilum to grow under photolithotrophic conditions with DMS as the electron donor. The enzyme is a 164 kDa heterotrimer composed of an alpha-subunit that binds a bis(molybdopterin guanine dinucleotide)Mo cofactor, a polyferredoxin beta-subunit, and a gamma-subunit that contains a b-type heme. In this study, we describe the thermodynamic characterization of the redox centers within DMS dehydrogenase using EPR- and UV-visible-monitored potentiometry. Our results are compared with those of other bacterial Mo enzymes such as NarGHI nitrate reductase, selenate reductase, and ethylbenzene dehydrogenase. A remarkable similarity in the redox potentials of all Fe-S clusters is apparent.
Dataset - Compressed Sensing-Aided Space-Time Frequency Index Modulation (2018)

Dataset supports: Lu, S., Hemadeh, I., El-Hajjar, M., &amp; Hanzo, L. (2018). Compressed Sensing-Aided Space-Time Frequency Index Modulation. IEEE Transactions on Vehicular Technology.
4C11 Force Sensorless Impedance Control of Dual Arm Manipulator-Hand System (2010)

In this paper, we describe our work on realizing the manipulation of nut and bolt for assembly work using dual arm manipulator. Generally, force sensor is used for estimation of external force. However, the cost of this sensor is expensive and easily damaged by inappropriate contact with object. This has led us to use other sensors instead to estimate the external force. Then, the results are compared with measurement from force sensor to validate for correct estimation. With the application of impedance control for robot hand, our robot could be able to grasp nuts ranges from several sizes down to as small as radius 2 mm. Moreover, we are experimenting on more challenging task such as grasping a bolt and screwing it to a nut using vision and force data. Furthermore, we applied a method called following control to make finger maintains its contact with worktable while making the grasping task. Thus, this could improve grasping nut task at a higher success rate even with some errors from robot position and vision data.
Fundamental study of an electrostatic chuck for silicon wafer handling (2002)

A mechanical holding system of a wafer might cause a serious problem in the semiconductor industry. Electrostatic wafer handling might be one of the possible solutions for such a problem. We have investigated the attractive force on a silicon wafer by using the electrostatic chuck which consists of interdigitated electrodes and a dielectric thin film. Electrostatic attractive force increases, as the applied voltage increases, and with thinner dielectric layer. The narrower width and spacing of interdigitated electrodes, the stronger electrostatic force is obtained. When the 1 mm width interdigitated electrodes and 50 /spl mu/m thick film are used, the strongest force obtained was about 17 N in the vertical direction at 3.5 kV, for a 4" silicone wafer. When DC high voltage is used, some residual force remains even after the applied voltage is removed. This was overcome by using variable frequency AC high voltage.
Powder alignment system for anisotropic bonded NdFeB Halbach cylinders (2000)

A Halbach cylinder, fabricated from pre-magnetized sintered NdFeB magnet segments, is proposed for the powder aligning system during the compression or injection moulding of anisotropic bonded Halbach oriented NdFeB ring magnets. The influence of leading design parameters of the powder aligning system, viz. the number of magnet segments per pole, their axial length and radial thickness, and their clearance from the mould, is investigated by finite element analysis, and validated experimentally.
Clinical performance of a hydrogel dressing in chronic wounds: a prospective observational study (2007)

Both acute and chronic wounds can be effectively treated with the Hydrosorb comfort hydrogel dressing.
Synthesis and Spectrokinetic Studies of a Series of 2-Ferrocenyl-2-methyl-[2H]-benzopyranes (2000)

Abstract The synthesis of a series of 2-ferrocenyl-2-methyl-[2H]-benzopyranes and the results of a spectrokinetic study are presented. A broadening of the absorption band in the visible range and the apparition of a second absorption band is observed as compared with the reference compounds. Furthermore important kinetic modifications are observed. From these results a structure can be proposed for a permanent opened form which is observed in polar protic solvents. Key Words: ferrocenyl benzopyranephotochromic compounds
Single Inhaler Extrafine Triple Therapy improves Quality of Life in COPD Patients compared to Indacaterol/Glycopyrronium: Post-hoc Analysis of the TRIBUTE study (2019)

Rationale TRIBUTE study was a 52-week multicentre, randomised, double-blind, active-controlled study comparing twice daily fixed triple combination of extrafine beclometasone dipropionate, formoterol fumarate and glycopyrronium (BDP/FF/G 87/5/9 µg) via pressurized metered dose inhaler (pMDI) to once daily indacaterol and glycopyrronium (IND/GLY 85/43 µg) dry powder inhaler (DPI). 1532 COPD patients with a history of exacerbation in the previous 12 months and CAT total score ≥ 10 were randomized.
[Intraperitoneal cisplatin plus epinephrine and surgical debulking for the treatment of advanced peritoneal carcinomatosis in the rat]. (2000)

Surgery combined with intraperitoneal cisplatin and epinephrine could be an efficient treatment for peritoneal carcinomatosis in man.
Synthesis of fluorine containing 3-cyano/ethoxycarbonyl-2-ethyl-benzo[b]furans via microwave assisted tandem intramolecular Witting and Claisen rearrangement reactions (2005)

Microwave irradiation of [{2-(fluorophenoxy)propanoyl}-(cyano/ethoxy-carbonyl) methylene] triphenylphosphoranes resulted in the exclusive formation of fluoro-substituted 2-ethylbenzo[b]furan-3-carbonitriles and ethyl 2-ethyl-benzo[b]furan-3-carboxylic acid esters, respectively, along with triphenylphosphine oxide. The aryl propargylic ethers formed initially by the intramolecular Wittig reaction of the ylides underwent Claisen rearrangement reaction under the same reaction conditions and the resulting ortho-allenyl phenol intermediates cyclised to yield benzofurans.
Functional analysis of the cytoplasmic domain of the integrin α1 subunit in endothelial cells (2008)

Integrin alpha1beta1, the major collagen type IV receptor, is expressed by endothelial cells and plays a role in both physiologic and pathologic angiogenesis. Because the molecular mechanisms whereby this collagen IV receptor mediates endothelial cell functions are poorly understood, truncation and point mutants of the integrin alpha1 subunit cytoplasmic tail (amino acids 1137-1151) were generated and expressed into alpha1-null endothelial cells. We show that alpha1-null endothelial cells expressing the alpha1 subunit, which lacks the entire cytoplasmic tail (mutant alpha1-1136) or expresses all the amino acids up to the highly conserved GFFKR motif (mutant alpha1-1143), have a similar phenotype to parental alpha1-null cells. Pro(1144) and Leu(1145) were shown to be necessary for alpha1beta1-mediated endothelial cell proliferation; Lys(1146) for adhesion, migration, and tubulogenesis and Lys(1147) for tubulogenesis. Integrin alpha1beta1-dependent endothelial cell proliferation is primarily mediated by ERK activation, whereas migration and tubulogenesis require both p38 MAPK and PI3K/Akt activation. Thus, distinct amino acids distal to the GFFKR motif of the alpha1 integrin cytoplasmic tail mediate activation of selective downstream signaling pathways and specific endothelial cell functions.
ChemInform Abstract: Phosphorus Dendrimers as Supports of Transition Metal Catalysts (2015)

Abstract Review: 61 refs.
Experience with cellulose acetate-coated activated charcoal haemoperfusion in the treatment of severe hypnotic drug intoxication (1980)

A haemoperfusion column containing activated charcoal coated with cellulose acetate was used to treat 7 patients with barbiturate or ethchlorvynol poisoning. Six of the patients showed marked lightening of coma and all showed a significant fall in plasma drug concentration. Plasma drug clearance and platelet loss were similar to those reported for other coated charcoal columns. Cellulose acetate-coated charcoal haemoperfusion may reduce the period of coma in severe poisoning with barbiturates and other hypnotic drugs and thus the morbidity and mortality.
Morphology and electrophysiological properties of immunocytochemically identified rat dopamine neurons recorded in vitro (1989)

In vitro intracellular recordings were made from neurons in the rat midbrain slice. Two neuronal types could be distinguished in dopamine-containing (DA) midbrain regions based on electrophysiological criteria. One neuron type exhibited short duration action potentials (less than 1.5 msec), could fire at high frequencies (greater than 10 Hz), and exhibited either phasic or burst firing patterns. This neuron did not exhibit tyrosine hydroxylase immunoreactivity. A second neuronal type exhibited a unique set of electrophysiological properties, which included (1) a spontaneous pacemaker-like depolarizing potential, (2) a highly regular firing pattern, (3) long duration (greater than 2 msec) action potentials, and (4) a high (i.e., depolarized) spike threshold. This neuron was consistently double labeled using intracellular staining and immunocytochemical localization of the catecholamine-specific enzyme tyrosine hydroxylase, and thus represented the DA neuronal type. Midbrain DA neurons stained with Lucifer yellow could be separated into 3 classes based on their location and morphology: (1) fusiform neurons with laterally projecting dendrites in the dorsal substantia nigra zona compacta region, (2) multipolar cells with laterally and ventrally projecting dendrites in the ventral substantia nigra zona compacta, and (3) neurons with fusiform and multipolar somata and radially projecting dendrites in the ventral tegmental area. The dendrites also exhibited spine-like protrusions and ended with specialized forked processes. Spontaneously firing DA cells recorded in vitro had a number of distinguishing electrophysiological characteristics in common with those of DA neurons recorded in vivo, such as the presence of a slow depolarizing potential driving spike activity and a characteristic depolarized spike threshold (approximately-36 mV). However, in contrast to that found in vivo, the DA cells characterized here exhibited substantially higher input resistances and fired spontaneously in a very regular pacemaker pattern. Burst firing was not observed. Spike activity was apparently dependent on 4 depolarizing events: (1) a voltage-dependent TTX-sensitive slow depolarization, (2) a cobalt-sensitive low threshold depolarization that was activated during the rebound from brief membrane hyperpolarizations, (3) high threshold dendritic calcium spikes which gave rise to the spike afterhyperpolarization, and (4) a high threshold initial segment sodium spike. These depolarizations were modulated by several processes, including a 4-aminopyridine-insensitive delayed repolarization, an instantaneous and time-dependent anomalous rectifier, and an afterhyperpolarization. Although low threshold depolarizations and rebound action potentials could be triggered by the membrane repolarization following small membrane hyperpolarizations, comparatively larger hyperpolarizations attenuated this rebound activation, thereby suppressing anodal break excitation.(ABSTRACT TRUNCATED AT 400 WORDS)
Moving beyond regression techniques in cardiovascular risk prediction: applying machine learning to address analytic challenges (2016)

Risk prediction plays an important role in clinical cardiology research. Traditionally, most risk models have been based on regression models. While useful and robust, these statistical methods are limited to using a small number of predictors which operate in the same way on everyone, and uniformly throughout their range. The purpose of this review is to illustrate the use of machine-learning methods for development of risk prediction models. Typically presented as black box approaches, most machine-learning methods are aimed at solving particular challenges that arise in data analysis that are not well addressed by typical regression approaches. To illustrate these challenges, as well as how different methods can address them, we consider trying to predicting mortality after diagnosis of acute myocardial infarction. We use data derived from our institution's electronic health record and abstract data on 13 regularly measured laboratory markers. We walk through different challenges that arise in modelling these data and then introduce different machine-learning approaches. Finally, we discuss general issues in the application of machine-learning methods including tuning parameters, loss functions, variable importance, and missing data. Overall, this review serves as an introduction for those working on risk modelling to approach the diffuse field of machine learning.
Development and trial of a new method of image enhancement for ultrasonic medical diagnostics (2009)

The subject of this work is the problem of separation of noise from informative texture elements taking into account special features of the ultrasonic image. A mathematical model is developed that describes statistical and spectral properties of different elements of image texture. A noise-suppression procedure based on the developed mathematical model is implemented. The method passed clinical trials that proved its efficiency.
Thermodynamics and solubility of (U x Np1- x )O2(am) solid solution in the carbonate system (2004)

Summary The formation of a solid solution can significantly affect the solubility of a minor component. The objectives of this study were to determine the nature of U(IV) and Np(IV) solid solutions and their thermodynamic properties. For this purpose, (U x Np 1- x )O 2 (am) precipitates with values of x varying from 0.05 to 0.95 were prepared, characterized, and used to determine their solubility in dilute to concentrated K 2 CO 3 and KHCO 3 solutions. The solubility data show that the equilibrium in these systems is reached in &lt; 7 days, the solubility-controlling solids are amorphous, and that we were successful in maintaining U and Np in the tetravalent state. A scanning electron microscope equipped with energy dispersive spectrometry and X-ray absorption spectroscopic analyses of the solids indicated the quilibrated co-precipitates to be solid solutions. A close agreement between the thermodynamic predictions, assuming an ideal solid solution, and the experimental solubilities shows that U(IV) and Np(IV) form an ideal solid solution and that non-ideal solid solution behavior for this system can be ruled out.
Modulation of the Protein Kinase Cδ Interaction with the “d” Subunit of F1F0-ATP Synthase in Neonatal Cardiac Myocytes (2010)

The F(1)F(0)-ATP synthase provides approximately 90% of cardiac ATP, yet little is known regarding its regulation under normal or pathological conditions. Previously, we demonstrated that protein kinase Cdelta (PKCdelta) inhibits F(1)F(0) activity via an interaction with the "d" subunit of F(1)F(0)-ATP synthase (dF(1)F(0)) in neonatal cardiac myocytes (NCMs) (Nguyen, T., Ogbi, M., and Johnson, J. A. (2008) J. Biol. Chem. 283, 29831-29840). We have now identified a dF(1)F(0)-derived peptide (NH(2)-(2)AGRKLALKTIDWVSF(16)-COOH) that inhibits PKCdelta binding to dF(1)F(0) in overlay assays. We have also identified a second dF(1)F(0)-derived peptide (NH(2)-(111)RVREYEKQLEKIKNMI(126)-COOH) that facilitates PKCdelta binding to dF(1)F(0). Incubation of NCMs with versions of these peptides containing HIV-Tat protein transduction and mammalian mitochondrial targeting sequences resulted in their delivery into mitochondria. Preincubation of NCMs, with 10 nm extracellular concentrations of the mitochondrially targeted PKCdelta-dF(1)F(0) interaction inhibitor, decreased 100 nm 4beta-phorbol 12-myristate 13-acetate (4beta-PMA)-induced co-immunoprecipitation of PKCdelta with dF(1)F(0) by 50 +/- 15% and abolished the 30 nm 4beta-PMA-induced inhibition of F(1)F(0)-ATPase activity. A scrambled sequence (inactive) peptide, which contained HIV-Tat and mitochondrial targeting sequences, was without effect. In contrast, the cell-permeable, mitochondrially targeted PKCdelta-dF(1)F(0) facilitator peptide by itself induced the PKCdelta-dF(1)F(0) co-immunoprecipitation and inhibited F(1)F(0)-ATPase activity. In in vitro PKC add-back experiments, the PKCdelta-F(1)F(0) inhibitor blocked PKCdelta-mediated inhibition of F(1)F(0)-ATPase activity, whereas the facilitator induced inhibition. We have developed the first cell-permeable, mitochondrially targeted modulators of the PKCdelta-dF(1)F(0) interaction in NCMs. These novel peptides will improve our understanding of cardiac F(1)F(0) regulation and may have potential as therapeutics to attenuate cardiac injury.