gebhart/patrepeval huggingface dataset:
Superconductivity in Boron (2001)

Metals formed from light elements are predicted to exhibit intriguing states of electronic order. Of these materials, those containing boron are of considerable current interest because of their relatively high superconducting temperatures. We have investigated elemental boron to very high pressure using diamond anvil cell electrical conductivity techniques. We find that boron transforms from a nonmetal to a superconductor at about 160 gigapascals (GPa). The critical temperature of the transition increases from 6 kelvin (K) at 175 GPa to 11.2 K at 250 GPa, giving a positive pressure derivative of 0.05 K/GPa. Although the observed metallization pressure is compatible with the predictions of first-principles calculations, superconductivity in boron remains to be explored theoretically. The present results constitute a record pressure for both electrical conductivity studies and investigations of superconductivity in dense matter.
Improvement of dermal parameters in aged skin after oral use of a nutrient supplement (2018)

The association of collagen peptides, vitamin C, <i>H. sabdariffa</i> and <i>A. chilensis</i> (Delphynol) could improve the signs of dermal skin aging.
Numerical evaluation of the lightning currents flowing through aircrafts fasteners – Comparison and cross-validation of methods (2020)

The evolution of fuel tank regulation requires new justifications related to the prevention of ignition sources within fuel tanks in case of a lightning event. Several approaches, aiming at predicting currents induced in the fuselage assemblies of an aircraft with time FDTD simulation method, are presented. The aim of this work is to compare these methods for the fasteners current computation and assess their compatibility with industrial processes and data.
Hepatitis D Virus Infection in Illinois State Facilities for the Developmental Disabled (1989)

Results show widespread hepatitis D virus infection in our institutionalized population and suggest that transmission occurred mainly in the past at the overcrowded facility B. The low prevalence of laboratory evidence of chronic liver disease in the anti-HDV-positive clients may be explained by increased mortality among those originally infected from 1950 to 1975.
Formation of Essential Ultrastructural Interface between Cultured Hippocampal Cells and Gold Mushroom-Shaped MEA- Toward ?IN-CELL? Recordings from Vertebrate Neurons (2011)

Using cultured Aplysia neurons we recently reported on the development of a novel approach in which an extracellular, non-invasive multi-electrode-array system provides multisite, attenuated, intracellular recordings of subthreshold synaptic potentials, and action potentials (APs), the so called "IN-CELL" recording configuration (to differentiate it from intracellular recordings). Because of its non-invasive nature, the configuration can be used for long term semi intracellular electrophysiological monitoring of APs and synaptic potentials. Three principals converge to generate the IN-CELL configuration: (a) engulfment of approximately 1 μm size gold mushroom-shaped microelectrodes (gMμE) by the neurons, (b) formation of high seal resistance between the cell's plasma membrane and the engulfed gMμE, and (c), autonomous localized increased conductance of the membrane patch facing the gMμE. Using dissociated rat hippocampal cultures we report here that the necessary morphological and ultrastructural relationships to generate the IN-CELL recording configuration are formed between hippocampal cells and the gMμEs. Interestingly, even <1 μm thin branches expand and engulf the gMμE structures. Recordings of spontaneous electrical activity revealed fast ∼2 ms, 0.04-0.75 mV positive monophasic APs (FPMP). We propose that the FPMP are attenuated APs generated by neurons that engulf gMμEs. Computer simulations of analog electrical circuits depicting the cell-gMμE configuration point out the parameters that should be altered to improve the neuron-gMμE electrical coupling.
Reflection coefficient estimation using Cholesky decomposition (1979)

A discussion of linear prediction analysis methods that employ the Cholesky decomposition is given. Only one method insures stability of the synthesis filters by assuring that estimated reflection coefficients are bounded in magnitude by one. This estimate is generalized to one based on forward and backward prediction errors. An efficient computational algorithm based on Cholesky factorization is derived.
Simulator for the reproduction of "Low Sonic Boom"-signatures (2020)

Supersonic aircraft produce a sonic boom when flying faster than the speed of sound. In order to rule out detrimental<br> e ects for inhabitants of overflown areas, civil supersonic flights (like the Concorde) were allowed to fly over water only.<br> Due to progress in aircraft design, the super sonic boom may be reduced considerably in the future. Such ”Low Sonic<br> Boom”-signatures will be considerably quieter and sound completely di erent compared to conventional sonic booms.<br> Currently, the sensation and the subjective response of humans to future ”Low Sonic Boom”-signatures is not known.<br> For an assessment of human responses to ”Low Sonic Boom”-signatures, a Sonic-Boom simulator has been built at the<br> University of Oldenburg as a pressure chamber with a volume of about 9 m<sup>3</sup>. Two 18” loudspeaker chassis enable the<br> production of an overpressure of up to 20 Pa for a signature duration of 200 ms. The background noise level in the<br> chamber is very low (21 dB(A)) and the chamber has a very small reverberation time of T<sub>20</sub>=0.2 s averaged over octave<br> bands from 63 Hz to 8 kHz. A vibration platform is installed in the chamber to simulate whole-body vibration that may<br> occur in connection with ”Low Sonic Boom”-signatures.
Functions Antagonistic to Plasmid Formation by N- Chromosomes (1984)

It was concluded in the preceding paper that lambda N- cI- genomes probably failed to form plasmids within infected Escherichia coli cells because they leakily express functions that act to destabilize the plasmid state. This prediction was investigated by examining the effect upon plasmid-forming ability of the loss of possible anti-plasmid functions. The loss of Ter function was found to allow long-term plasmid formation, although the efficiency of initial plasmid formation and the heritable stability without selection were low. The combined loss of the int, red and gam gene functions also promoted plasmid growth, although the absence of Ter lambda was necessary. In contrast, the presence of Ter80 (due to an h80 substitution) did not prevent plasmid formation when the int, red and gam genes were absent, indicating that Ter80 does not attack the closed-circular form of the lambda chromosome. The combined loss of the ter, int, red and gam gene functions facilitated fully efficient inheritance of the lambda N- cI- plasmids in the absence of selection, although the efficiency of initial plasmid formation remained low. However, cells harbouring such plasmids suffered a decline in viability, indicating that the plasmids expressed a function (or more than one) that acts to debilitate the host cells--presumably an effect that is increased with this genotype because the modified lambda N- cI- plasmids are inherently more stable. The possible involvement of the lambda S and kil functions in destabilization is discussed.
The mechanics of the knee and prosthesis design (1978)

The mechanisms controlling and limiting movement and serving to transmit load between the femur and the tibia are discussed. Having accounted for the transmission of all components of force and couple across the joint and noted the load-bearing role of the menisci, some principles which might guide the design of knee prostheses are deduced. It is shown that current designs transgress some of these principles. An experimental prosthesis is then described, which incorporates analogues of the natural menisci. The possible practical application of this novel principle has been studied in cadaveric human joints and in living patients.
Seizures following posterior fossa surgery (1998)

A retrospective analysis of seizure incidence in 511 patients who underwent posterior possa operations via a suboccipital craniectomy with prophylactic anticonvulsant agents, was performed. Thirty patients (5.9%) experienced seizures within 2 weeks postoperatively. Their mean age was 15 years. Twenty patients had seizures within 3 h of operation; 24 patients had generalized tonic clonic seizures. Focal motor seizures with secondary generalization and simple focal motor seizures were recorded in three patients each. The incidence of postoperative seizures was highest in patients with acoustic schwanommas (9.09%) followed by those with medulloblastomas (8.54%) and astrocytomas (8.33%). The sitting position, associated with venous air embolism (VAE) and or pneumocephalus, was related to the occurrence (p = 0.001) of postoperative seizures. Seizures occurred in 24 patients out of 250 cases operated on in the sitting position compared with 3/170 and 3/91 in the prone and lateral positions, respectively. Intraoperatively significant VAE occurred in 10 out of 30 patients and postoperative computed tomography revealed pneunocephalus in 20 out of 30 patients. A higher percentage was found in patients with a preoperative ventriculoperitoneal shunt or intraoperative ventriculostomy (6.5%) than in those without (5.1%), but the difference was not statistically significant. In conclusion, seizures after posterior fossa surgery are a significant problem which is not reflected in the published literature. Our study highlights the significance of the sitting position in the causation of seizures after posterior fossa surgery.
A trust-based context-aware access control model for Web-services (2004)

A key challenge in Web services security is the design of effective access control schemes that can adequately meet the unique security challenges posed by the Web services paradigm. Despite the recent advances in Web based access control approaches applicable to Web services, there remain issues that impede the development of effective access control models for Web services environment. Amongst them are the lack of context-aware models for access control, and reliance on identity or capability-based access control schemes. In this paper, we motivate the design of an access control scheme that addresses these issues, and propose an extended, trust-enhanced version of our XML-based role based access control (X-RBAC) framework that incorporates context-based access control. We outline the configuration mechanism needed to apply our model to the Web services environment, and also describe the implementation architecture for the system.
<title>Streaming video and rate-scalable compression: What are the challenges for watermarking?</title> (2001)

Video streaming, or the real-time delivery of video over a data network, is the underlying technology behind many applications including video conferencing, video-on-demand, and the delivery of educational and entertainment content. In many applications, particularly ones involving entertainment content, security issues, such as conditional access and copy protection must be addressed. To resolve these security issues, techniques that include encryption and watermarking need to be developed. Since the video sequences will often be compressed using a scalable compression technique and transported over a lossy packet network using the Internet Protocol, the security techniques must be compatible with the compression method and data transport and be robust to errors. In this paper, we address the issues involved in the watermarking of rate-scalable video streams delivered using a practical network. Watermarking is the embedding of a signal (the watermark) into a video stream that is imperceptible when the stream is viewed but can be detected by a watermark detector. Many watermarking techniques have been proposed for digital images and video, but the issues of streaming have not been fully investigated. A review of streaming video is presented, including scalable video compression and network transport, followed by a brief review of video watermarking and the discussion of watermarking streaming video.
Pushing Down the Limit of NH3 Detection of Graphene-Based Chemiresistive Sensors through Functionalization by Thermally Activated Tetrazoles Dimerization (2022)

An easy and cost-effective method is presented to functionalize graphene through thermally activated dimerization of 2,5-diaryltetrazoles. Consistently with the experimental spectroscopic results, theoretical calculations demonstrate that during the thermal treatment a dimerization process to tetrazine is energetically more favorable than covalent grafting. Since both the functionalization method by thermal activation and the use of tetrazoles have never been considered before to prepare graphene-based chemiresistors, this represents a promising approach to develop graphene-related sensing platforms. Five different 2,5-diaryltetrazoles have been tested here for the effective functionalization of low-defect graphene layers on silicon nitride. Based on these layers, an array of sensors has been prepared for testing upon ammonia exposure. The tests on the sensing performances clearly show sensitivity to ammonia, extending the current range of ammonia detection with a graphene-based chemiresistor down to the sub-ppm range, as results from a benchmarking with data available in the literature. Furthermore, all sensors perform better than bare graphene. Density functional theory (DFT) calculations, carried out on a model of the best performing layer of the array, provided the theoretical framework to rationalize the sensing mechanism and disclose a dual role played by the tetrazine molecules, (i) acting as ammonia concentrators and (ii) mediating the electron transfer between ammonia and graphene.
Risk Assessment of Neutropenia during Low-Dose Valganciclovir Prophylaxis for Heart Transplant Recipients (2022)

The aim of this study was to investigate whether low-dose valganciclovir (VGCV) prophylaxis for cytomegalovirus (CMV) infection increased the risk of developing neutropenia in heart transplant recipients (HTRs). Forty-three HTRs receiving VGCV were divided into two groups: those who received VGCV prophylaxis (n = 22) and those who did not (n = 21). Neutropenia was defined as an absolute neutrophil count ˂1500/µL and was monitored for approximately one year post-transplantation. In the prophylaxis group, 77.3% (17/22) of HTRs experienced neutropenia, which was significantly higher than that in the no prophylaxis group (42.9% [9/21], p = 0.031). No significant differences in the duration of VGCV administration and cumulative dose up to the first neutropenia episode were observed between the groups. Meanwhile, the cumulative dose of mycophenolate mofetil was significantly higher in the prophylaxis group than in the no prophylaxis group (p = 0.018); the daily maintenance dose and regularly measured area under the concentration-time curve (AUC) of mycophenolic acid did not significantly differ between groups. In conclusion, the risk of developing neutropenia was higher in HTRs receiving low-dose VGCV prophylaxis than it was in those not receiving prophylaxis, probably not attributed to dosing period and cumulative dose of VGCV until the onset of neutropenia.
Long-term cardiac prognosis and risk stratification in 260 adults presenting with mitochondrial diseases (2015)

Patients with mitochondrial diseases are at high risk of MACE, independently predicted by intraventricular conduction block, diabetes, ventricular prematurity, and LV hypertrophy.
Low energy unimodular gravity (2018)

It has been known for a century that the theory of General Relativity
 proposed by Albert Einstein describes accurately gravitational phenomena
 at low energies. This theory, when considered classically, is capable
 of reproducing the right results for the tests carried on the Solar system,
 as well as many other cosmological observations. However, there
 are several problems when we try to compute quantum effects. Specifically,
 one of the biggest mysteries of today’s theoretical physics is the
 so-called cosmological constant problem. This problem is sometimes split
 in two, on the one hand there is the matter of why it has its particular
 value (very close to zero but not exactly). On the other hand, quantum
 corrections to this constant are about 120 orders of magnitude bigger
 than the observed one.
 Although there are several proposals to solve this problem, some of
 them by studying the non-perturbative sector of the theory, there is a
 natural solution to the “second” problem within perturbation theory.
 In this regard, the theory of Unimodular Gravity provides a natural
 solution to the cosmological constant problem because in this theory
 the cosmological constant appears as an integration constant at the
 classical level. Moreover, this theory is compatible with all the current
 observations. In this work we demonstrate that there are no quantum
 corrections to first order in perturbation theory to the cosmological
 constant value, and we argue that this result holds to any loop order as
 long as the Ward identities are respected.
 Further, since Unimodular Gravity yields the same classical predictions
 than General Relativity, we look for differences between both theories
 at the quantum level by adding matter. As part of this study,
 we show that (for both theories) the beta functions, despite being used
 as the motivation for proposals such as Asymptotic Safety, lack any
 physical meaning when matter is coupled to gravity.
N-(3-Methoxyphenyl)-tert-butanesulfinamide (2009)

In the title compound, C(11)H(17)NO(2)S, the mol-ecules inter-act in a head-to-tail fashion through pairs of N-H⋯O hydrogen bonds, giving discrete centrosymmetric dimers. The N(H)S(O)(t)Bu fragment is disordered over two sets of positions, with the major component comprising 90.0 (2)%.
Prise en charge des consequences de la carence oestrogenique apres cancer du sein. (2011)

Tout cancer mammaire invasif exprimant des recepteurs hormonaux doit faire l’objet d’une hormonotherapie adjuvante visant a minimiser l’exposition des cellules tumorales aux oestrogenes, soit en inhibant la source des oestrogenes (agonistes de la LHRH ou ovariectomie bilaterale chez les femmes premenopausees, inhibiteur de l’aromatase chez les femmes postmenopausees), soit par un antagoniste competitif du recepteur des oestrogenes (tamoxifene) (voir article de Lifrange et al. consacre a l’hormonotherapie du cancer du sein dans ce meme numero). De plus, la chimiotherapie entraine frequemment, chez les femmes premenopausees, une amenorrhee transitoire ou definitive par une alteration de la fonction ovarienne.
Ongoing Developments Towards the Realization of a Microwave Device for Brain Stroke Monitoring (2018)

The present paper describes our on-going work towards the realization of a novel device to perform continuous monitoring of a patient after a stroke onset. The realization of the antenna array and of the control electronics will be discussed, together with a first experimental test of the system.
Use of scatterometer data in groundwater vulnerability assessment (2014)

Lombardy in Italy has been selected as a case study to evaluate the capability of the QuikSCAT - Dense Sampling Method (QSCAT-DSM) data in delineating urban extent, estimating rate of urban changes, and assessing aquifer vulnerability, in particular to investigate the relationship between land-use changes and groundwater contamination.QSCAT-DSM data represent an innovative approach to delineate urban and interurban areas with satellite scatterometer data. Radar backscatter acquired by the SeaWinds scatterometer aboard the QSCAT satellite together with the DSM are used to identify and map surface features at a posting scale of about 1 km².Through the spatial statistical methods Weight of Evidence (WofE), both urban changes given by QSCAT-DSM data and population changes in the decade of the 2000’s have been correlated to nitrate concentration trend in groundwater in the same time period.Both analyses based on urban change and on population change lead to the same result: urban nitrate sources in Lombardy increase the level of nitrate concentration in groundwater, indicating a degradation of the water quality. Moreover, QSCAT-DSM data proved to be a reliable tool for evaluating urban changes continuously without a temporal or spatial gap, and to be a strategic variable allowing the assessment of groundwater vulnerability consistently throughout the decadal time scale.
Electrochemical Studies on Cause of Hydrogen-embrittlement by Zn-cyanide Plating (1970)

Hydrogen-embrittlement caused by Zn-cyanide plating process was stronger than that by the acidic process in the same current efficiency. Therefore, the embrittlement by the former process seemed to be caused by other factors than the amount of hydrogen discharged. At first, electrolytic con-ditions in the process of plating were studied for hydrogen or zinc polarization by potentiostatic method in the eight baths reported in the previous paper.The results obtained were as follows:1) The degree of brittleness of the specimens corresponded well with that of the hydrogen polarization before Zn deposition. Then, the cause of embrittlement was considered to be the action of hydrogen discharged on the naked iron cathode of low hydrogen overvoltage.2) As the results of equilibrium potential measurements and activity of OH-, it was concluded that most of Zn from so-called Zn cyanide bath was deposited from zincate solution.
TRPV1 drugs alter core body temperature via central projections of primary afferent sensory neurons (2022)

TRPV1, a capsaicin- and heat-sensitive ion channel, is expressed by peripheral nociceptors and has been implicated in various inflammatory and neuropathic pain conditions. Although pharmacological modulation of TRPV1 has attracted therapeutic interest, their utility is limited because TRPV1 agonists and antagonists thus far examined show thermo-modulatory side effects in animal models and human clinical trials. These on-target effects may result from the perturbation of TRPV1 receptors on nociceptors, which transduce signals to central thermoregulatory circuits and also release pro-inflammatory factors from their peripheral terminals, such as the vasodilative neuropeptide calcitonin gene-related peptide (CGRP). Alternatively, they may originate from the modulation of TRPV1 on vascular smooth muscle cells (vSMCs), where channel activation promotes arteriole constriction. Here, we ask which of these pathways is most responsible for the body temperature perturbations elicited by TRPV1 drugs in vivo . We address this question by selectively eliminating TRPV1 expression in sensory neurons or vSMCs and show that only the former abrogates agonist-induced hypothermia and antagonist-induced hyperthermia. Furthermore, lesioning the central projections of TRPV1-positive sensory nerve fibers also abrogates drug-mediated thermo-modulation, whereas eliminating CGRP has no effect. Thus, TRPV1 drugs alter core body temperature by modulating sensory input to the central nervous system, rather than through peripheral actions on the vasculature. These findings suggest how mechanically distinct TRPV1 antagonists may diminish inflammatory pain without affecting core body temperature.