gebhart/patrepeval huggingface dataset:
Joint Subcarrier Pairing and Power Allocation for OFDM Two-Hop Systems (2010)

In this paper, we aim to maximize the weighted sum rate of Orthogonal Frequency Division Multiplexing (OFDM) relaying systems. In the considered system we jointly optimize subcarrier pairing in two consecutive time slots and power allocation on each subcarrier in each time slot. In addition, the destination combines the signals from the source and the relay pertaining to the same message in each two time slots. This is motivated by the lack of discussion in the literature on joint optimization with destination combining. It is assumed that the channel state information is known to the source. Decode-and-forward and half-duplex strategies are considered when the relay is used. Both total and individual power constraints for the source and the relay are investigated. Based on the optimization results, algorithms to achieve feasible solutions are also proposed. Simulation results show that the proposed algorithms almost achieve the optimal weighted sum rate, and outperform the existing methods in various channel conditions.
Improved Simulations of Astrophysical Plasmas: Computation of New Dielectronic Recombination Data (2002)

Here we recap the works of two posters presented at the 2002 NASA Laboratory Astrophysics Workshop. The first was Shortcomings of the R-Matrix Method for Treating Dielectronic Recombination. The second was Computation of Dielectronic Recombination Data for the Oxygen-Like Isoelectronic Sequence.(Shortcomings of the R-Matrix Method for Treating Dielectronic Recombination) By performing new radiation-damped R-matrix scattering calculations for the photorecombination of Fe17+ forming Fe16+, we demonstrate and discuss the difficulties and fundamental inaccuracies associated with the R-matrix method for treating dielectronic recombination (DR). Our new R-matrix results significantly improve upon earlier R-matrix Results for this ion. However, we show theoretically that all R-matrix methods are unable to account accurately for the phenomenon of radiative decay followed by autoionization. For Fe17+, we demonstrate numerically that this results in an overestimate of the DR cross section at the series limit, which tends to our analytically predicted amount of 40%. We further comment on the need for fine resonance resolution and the inclusion of radiation damping effects. Overall, slightly better agreement with experiment is still found with the results of perturbative calculations, which are computationally more efficient than R-matrix calculations by more than two orders of magnitude. TWG was supported in part by NASA Space Astrophysics Research and Analysis Program grant NAG5-10448. NRB was supported by UK PPARC grant PPA/G/S/1997/00783. DWS was supported in part by NASA Space Astrophysics Research and Analysis Program grant NAG5-5261.(Computation of Dielectronic Recombination Data for the Oxygen-Like Isoelectronic Sequence) We have systematically calculated rate coefficients for dielectronic recombination (DR) along the oxygen-like sequence. A recent benchmarking of DR resonance strength and energies between our theoretical techniques and the experimental results from the Test Storage Ring in Heidelberg has already shown fairly good agreement for the most highly-ionized oxygen-like system we consider here, DR of Fe XIX forming Fe XVIII. At the low-charge end of this isoelectronic sequence, we benchmark our results using F II DR data which are determined from measured neutral fluorine photoionization measurements and the principle of detailed balance. To assess the reliability of our calculations for intermediate Oxygen-like ionization stages, we compare between theoretical R-matrix and perturbative results. All calculations have been performed in intermediate-coupling, so that fine structure effects are incorporated. Furthermore, both Δ n=0 and Δ n&gt;0 core transitions are included in order to span a higher temperature range. Final-state-resolved rate coefficients and total rate coefficients have been tabulated, and these data are available in either format from our web site.
Conclusion (2020)

Abstract Empiricism values the experience from which we learn. Some philosophers equate experience with present perception. Against that it is argued that experience requires memory, living through trials, and being changed by the experience. Some philosophers also consider experience an obvious example of knowing. Describing experience as knowledge is like describing a knife as a cut. Experience is an instrument that can be used more or less artfully. Empiricism is the art of using experience to advance problems of knowledge. The tenable values of empiricism remain those of experimentalism, even radical experimentalism, experiments in experimentation. Experimental values are many, and not limited to scientific routines. However, “truth” is not one of these experimental values, which tend instead toward aesthetic qualities like interesting, beautiful, surprising, or fecund.
Les caractéristiques psychométriques du Questionnaire de douleur de Saint-Antoine en consultation d’algologie chez les personnes atteintes de cancer (2008)

L’objectif de cette étude est d’examiner les caractéristiques psychométriques des deux versions du Questionnaire de douleur de Saint-Antoine chez les patients atteints de cancer, vus en consultation d’algologie. Soixante et onze patients ont été interrogés à l’Institut Claudius-Regaud (ICR) à Toulouse sur le niveau d’intensité et sur les différents aspects de la douleur ressentie à partir de plusieurs échelles de douleur, dont les versions longue et abrégée du questionnaire de Saint-Antoine (QDSA-VL et QDSA-VA). Par ailleurs, des informations sur les caractéristiques démographiques et les informations médicales des patients ont été relevées. Les validités convergente et divergente ont été mesurées par les corrélations entre les échelles (coefficient de Pearson). La validité de construit a été évaluée par une analyse en composante principale et la fidélité par l’indicateur de stabilité (corrélation test-retest). Les résultats montrent que les validités convergente, divergente et de construit, la consistance interne, et la fidélité sont acceptables. Ainsi, sur l’ensemble des caractéristiques psychométriques évaluées dans cette étude, les deux versions du QDSA montrent des bonnes qualités psychométriques, comparables aux résultats d’autres études réalisées dans d’autres pays et sur des patients atteints de cancer. Cette étude montre que le QDSA est un instrument essentiel de mesure de la douleur, pertinent parce qu’il va plus loin que la simple mesure de l’intensité en permettant l’investigation de la dimension sensorielle et affective.
On the fundamentals of the virtual source method (2006)

Abstract The virtual source method (VSM) has been proposed as a practical approach to reduce distortions of seismic images caused by shallow, heterogeneous overburden. VSM is demanding at the acquisition stage because it requires placing downhole geophones below the most complex part of the heterogeneous overburden. Where such acquisition is possible, however, it pays off later at the processing stage because it does not require knowledge of the velocity model above the downhole receivers. This paper demonstrates that VSM can be viewed as an application of the Kirchhoff-Helmholtz integral (KHI) with an experimentally measured Green's function. Direct measurement of the Green's function ensures the effectiveness of the method in highly heterogeneous subsurface conditions.
MicroRNA-20a-3p and microRNA-20a-5p exhibit anti-proliferative activities in a melanoma in vitro model (2019)

MicroRNAs control numerous cancer-related signaling pathways and play pivotal role in cancer initiation and progression. Recent studies have indicated variable and cancer-specific expression patterns of mi-croRNA-20a (miR-20a), which have been attended by varying and sometimes contrary tumor biological functions. This is the first study regarding to the characterization of miR-20a's functionality in melanoma cells. miR-20a expression was examined by reverse transcriptase and quantitative polymerase chain reaction in an in vitro melanoma model containing HaCat keratinocytes and B16 melanoma cells. For cell growth analysis, miR-20a vectors were cloned and transfected into B16 cells. Cell growth kinetics were performed utilizing a Cell Counter and Analyzer Model TT (Roche Applied Science). The expression of both the 3p and the 5p strand processed from the miR-20a precursor was suppressed in melanoma cells B16 compared to the expression in non-malignant HaCat keratinocytes. Recombinant restoration of miR -20a levels in malignant B16 cells attenuated cellular growth. Our data suggest that miR-20a bears biological functions in melanoma cells and thus represents an anti-oncogenic factor which is suppressed during cancer progression.
Optical Properties of Germanium Dots Self-Assembled on Porous TiO2 Templates (2011)

Self-assembled Ge quantum dots were formed by in-situ thermal annealing of a thin amorphous Ge layer deposited by molecular beam epitaxy on a thin porous TiO2 layer grown on SiO2 on Si(001). For samples with dot diameters ranging from 10 to 35 nm, the dot photoluminescence (PL) appeared primarily as a wide near-infrared band peaked near 800 meV. The peak energy of the PL band reflects the average dot size and its shape depends on the dot size distribution. Using a tight binding bandgap model, we have analyzed the PL spectrum in terms of the dot size distribution. The observed size distribution determined from transmission electron and atomic force microscopy allowed the determination of the nonlinear increase in the PL efficiency with decreasing dot diameter. Knowing this generic PL efficiency, we show that it is possible to evaluate the size distribution of Ge dots from their PL energy dependence.
Synthesis of Z- or E-Trisubstituted Allylic Alcohols and Ethers by Kinetically Controlled Cross-Metathesis with a Ru Catechothiolate Complex (2017)

The first examples of kinetically controlled cross-metathesis reactions that generate Z- or E-trisubstituted alkenes are disclosed. Transformations are catalyzed by ≤6.0 mol % of a Ru catechothiolate complex and afford trisubstituted allylic alcohols and ethers in up to 81% yield and >98% stereoisomeric purity. The method has considerable scope, as olefins containing an alcohol, an aldehyde, an epoxide, a carboxylic acid, or an alkenyl group may be used. Mechanistic models that account for the observed levels and trends in efficiency and stereochemical control are provided, based on DFT studies.
High-frequency response for DFB LD due to a wavelength detuning effect (1987)

A wavelength detuning technique, which intentionally shifts the Bragg wavelength shorter than the gain peak wavelength, has been experimentally confirmed to be effective in improving the frequency response of distributed feedback laser diodes (DFB LD's). A larger differential gain, due to detuning, resulted in a high resonance frequency. A resonance frequency as high as 21 GHz has been achieved in a <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">\lambda/4</tex> -shift. 1.5-μm DFB-DC-PBH LD with an 80-Å detuning wavelength at 30-mW output power.
Autocrine interleukin-1beta production in leukemia: evidence for the involvement of mutated RAS. (1999)

Interleukin (IL)-1beta is constitutively expressed in many leukemias and operates as an autocrine growth factor. To study the cellular basis for this aberrant production, we analyzed two cell lines, B1 (acute lymphoblastic leukemia) and W1 (juvenile chronic myelogenous leukemia), which express high levels of IL-1beta and have mutations in the K-RAS and N-RAS genes, respectively. Electromobility shift assays demonstrated transcription factor binding at multiple IL-1beta promoter elements [nuclear factor (NF)-IL6/CREB, NFB1, NFkappaB, and NF-IL6], consistent with the activation of an upstream signaling pathway. To determine whether activated Ras was involved, two structurally distinct classes of farnesyltransferase (FTase) inhibitors (the monoterpenes and a peptidomimetic) and an adenoviral vector expressing antisense targeted to K-RAS were used to specifically interfere with Ras function and/or expression. Treatment with the FTase inhibitors resulted in a concentration-dependent decrease in both NF-IL6/CREB binding to the IL-1beta promoter and IL-1beta protein levels, without a significant change in total cellular protein levels. Furthermore, exposure of the B1 cells to antisense against K-RAS resulted in an approximately 50% reduction in both p21Ras and IL-1beta protein levels. Growth suppression was observed after FTase inhibitor or antisense exposure, an effect that was partially reversible by the addition of recombinant IL-1beta to the cultures. Our observations suggest that mutated RAS genes may mediate autocrine IL-1beta production in some leukemias by stimulating signal transduction pathways that activate the IL-1beta promoter.
Retinal sensitivity and fundus autofluorescence in adult-onset foveomacular vitelliform dystrophy (2022)

Abstract The present study aimed to compare retinal sensitivity (RS) at each stage and to evaluate the relationship between RS and fundus autofluorescence (FAF) pattern in adult-onset foveomacular vitelliform dystrophy (AOFVD). We retrospectively reviewed 17 eyes of 13 patients with AOFVD. In addition to best-corrected visual acuity (VA), RS within the affected lesion and optical coherence tomography (OCT) measurements were carried out in each participant. All the examined eyes were classified into 4 stages and 3 FAF patterns. RS was superimposed on OCT fundus image and RS within the affected lesion was calculated in each eye. The relationships between visual functions (VA and RS within the affected lesion) and stages and also FAF patterns were analyzed using the linear mixed model. As a result, RS within the affected lesion was significantly associated with FAF pattern, but not with stage. In contrast, VA was correlated with neither stages nor FAF patterns. Our current result suggested that RS within the affected lesion was related to FAF patterns but this was not the case with VA in eyes with AOFVD, demonstrating the usefulness of measuring RS, not only VA, to comprehend the disease status in AOFVD.
Straight skeletons with additive and multiplicative weights and their application to the algorithmic generation of roofs and terrains (2017)

We introduce additively-weighted straight skeletons as a new generalization of straight skeletons. An additively-weighted straight skeleton is the result of a wavefront-propagation process where, unlike in previous variants of straight skeletons, wavefront edges do not necessarily begin to move at the start of the propagation process but at later points in time. We analyze the properties of additively-weighted straight skeletons and show how to compute straight skeletons with both additive and multiplicative weights, i.e., where input edges are allowed to move at different speeds and may start at different times. We then show how to use additively-weighted and multiplicatively-weighted straight skeletons to generate roofs and terrains for polygonal shapes such as the footprints of buildings or river networks. As a result, we are able to automatically generate roofs and terrains where the individual facets have different inclinations and may start at different heights.
A novel kind of concrete superplasticizer based on aryl isocyanate polycondensates (2017)

A novel superplasticizer was synthesized by polycondensation of Alkyl phenol phosphate and toluene diisocyanate grafting with methoxy polyoxyethylene ether (MPEG). The chemical structure and molecular weight of polycondensates molecules were determined by 1H nuclear magnetic resonance (NMR) and gel permeation chromatography respectively. The experimental results indicated that the polycondensates of Alkyl phenol phosphate and toluene diisocyanate grafting with MPEG not only exhibited good water-reducing properties but also demonstrated effective anti-clay abilities alone. Furthermore, the polycondensates showed good fluidity maintaining abilities within 1–3 h and good workability of concrete. The results of T500 Time experiments show that lower plastic viscosity of the polycondensates leads to fresh concrete much "looser" than conventional PCEs in self-compacting concrete.
Using texture measures for visual quality assessment (2017)

Tese (doutorado)—Universidade de Brasília, Instituto de Ciências Exatas, Departamento de Ciência da Computação, 2017.
20 YEARS OF LEPTIN: Leptin at 20: an overview (2014)

Historically, adipose tissue was considered to be a passive storage vessel discharging nutrients in times of famine and accumulating fat in times of surfeit. This view changed with the identification of leptin as an adipocyte hormone. Leptin functions as an afferent signal in a negative feedback loop that regulates food intake and metabolism to maintain homeostatic control of adipose tissue mass. Before this, the existence of a system maintaining homeostatic control of energy balance was unclear. The identification of leptin has thus uncovered a new endocrine system that also links changes in nutrition to adaptive responses in most if not all other physiologic systems. Further studies have revealed a set of clinical syndromes caused by leptin deficiency, including lipodystrophy and hypothalamic amenorrhea. This work has led to new therapeutic approaches for a number of human conditions and has also established a conceptual framework for studying the pathogenesis of obesity.
Production-line assembly of 150+ VIRUS spectrographs (2010)

The Visual Integral-Field Replicable Unit Spectrograph (VIRUS) instrument is being built to support observations for the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) project. The instrument consists of 150+ identical fiber-fed integral field optical spectrographs. This instrument provides a unique challenge in astronomical instrumentation: each of the 150+ instruments must be identical and each component must be interchangeable amongst every other spectrograph in order to ease assembly and maintenance of the instrument. In this paper we describe plans for the production-line assembly of the spectrographs. In particular, we discuss the assembly procedures and design choices that will ensure uniformity of the spectrographs and support the project schedule.
How Many People Visit YouTube? Imputing Missing Events in Panels With Excess Zeros (2015)

Abstract: Media-metering panels track TV and online usage of people to an-alyze viewing behavior. However, panel data is often incomplete due to non-registered devices, non-compliant panelists, or work usage. We thus propose a probabilistic model to impute missing events in data with excess zeros using a negative-binomial hurdle model for the unobserved events and beta-binomial sub-sampling to account for missingness. We then use the presented models to estimate the number of people in Germany who visit YouTube.
När en person med demenssjukdom slutar äta : En litteraturstudie utifrån sjuksköterskans perspektiv (2012)

Bakgrund: Personer med demenssjukom far ofta i sjukdomsforloppet problem att ata och insatser for att behalla personens nutritionsstatus kan bli aktuella. En vanlig sadan insats som diskuteras ar e ...
Autophagy Regulates Homeostasis of Pluripotency-Associated Proteins in hESCs (2013)

The pluripotency of embryonic stem cells (ESCs) is maintained by intracellular networks of many pluripotency-associated (PA) proteins such as OCT4, SOX2, and NANOG. However, the mechanisms underlying the regulation of protein homeostasis for pluripotency remain elusive. Here, we first demonstrate that autophagy acts together with the ubiquitin-proteasome system (UPS) to modulate the levels of PA proteins in human ESCs (hESCs). Autophagy inhibition impaired the pluripotency despite increment of PA proteins in hESCs. Immunogold-electron microscopy confirmed localization of OCT4 molecules within autophagosomes. Also, knockdown of LC3 expression led to accumulation of PA proteins and reduction of pluripotency in hESCs. Interestingly, autophagy and the UPS showed differential kinetics in the degradation of PA proteins. Autophagy inhibition caused enhanced accumulation of both cytoplasmic and nuclear PA proteins, whereas the UPS inhibition led to preferentially degrade nuclear PA proteins. Our findings suggest that autophagy modulates homeostasis of PA proteins, providing a new insight in the regulation of pluripotency in hESCs.
A Novel Representation of Parts for Accurate 3D Object Detection and Tracking in Monocular Images (2015)

We present a method that estimates in real-time and under challenging conditions the 3D pose of a known object. Our method relies only on grayscale images since depth cameras fail on metallic objects, it can handle poorly textured objects, and cluttered, changing environments, the pose it predicts degrades gracefully in presence of large occlusions. As a result, by contrast with the state-of-the-art, our method is suitable for practical Augmented Reality applications even in industrial environments. To be robust to occlusions, we first learn to detect some parts of the target object. Our key idea is to then predict the 3D pose of each part in the form of the 2D projections of a few control points. The advantages of this representation is three-fold: We can predict the 3D pose of the object even when only one part is visible, when several parts are visible, we can combine them easily to compute a better pose of the object, the 3D pose we obtain is usually very accurate, even when only few parts are visible.
Supplementary Table 2 from Enhancing CAR T-cell Therapy Using Fab-Based Constitutively Heterodimeric Cytokine Receptors (2023)

&lt;p&gt;Supplementary Table S2. Top 50 up-regulated GSEA pathways.&lt;/p&gt;
Weighted voting-based ensemble classifiers with application to human face recognition and voice recognition (2009)

A recent trend in the field of pattern recognition has been the use of ensemble classifiers. If combined properly, the ensemble can achieve a higher identification rate than any individual classifier. Plurality voting is one of the most commonly used combination strategies. The performance of plurality voting can be improved if the decisions of different classifiers are weighted properly. In this paper, we both theoretically and experimentally analyze the performance of a weighted plurality voting combination strategy to combine the decisions of multiple classifiers. Theoretical expressions characterizing the performance of the weighted voting model are derived and the method is applied to the problem of human face recognition and voice recognition. The results show the advantage of employing weighted-voting-based ensemble classifiers in achieving high identification rates.
Improving Attachments of Non-Invasive (Type III) Electronic Data Loggers to Cetaceans (2011)

Abstract : The overall goal of this project is to increase the longevity of suction cup attachments for short term archival tags such as the DTAG. Specifically, we are working to extend the routine attachment duration for suction-cup tags to multiple days, if not weeks. Objectives are to: 1) Examine and identify forces and failure modes in suction cup attachments. 2) Assess the impact of tags and non-invasive surface attachments on cetaceans. 3) Take the knowledge gained from objectives 1) and 2) and engineer suction cups and surface treatments for improved attachment. 4) Examine on-animal performance of engineered attachments and tags.