gebhart/patrepeval huggingface dataset:
Scalable WiFi multicast services for very large groups (2013)

IEEE 802.11-based wireless local area networks, referred to as WiFi, have been globally deployed and the vast majority of mobile devices are currently WiFi-enabled. While WiFi has been proposed for multimedia content distribution, its lack of adequate support for multicast services hinders its ability to provide multimedia content distribution to a large number of devices. We propose AMuSe, a scalable and adaptive interference mitigation solution for WiFi multicast services which is based on accurate receiver feedback and that incurs a small control overhead. Specifically, we develop a scheme for dynamic selection of a subset of the multicast receivers as feedback nodes, which periodically send information, such as channel quality or received packet statistics, to the multicast sender. This feedback information is used by the multicast sender to optimize the multicast service quality, e.g., by dynamically adjusting the transmission bit-rate. Our proposed solution does not require any changes to the standards or any modifications to the WiFi devices. We have implemented the proposed solution in the ORBIT testbed and evaluated its performance in large groups with approximately 250 receivers, both with and without interference sources. Our online experiments demonstrate that our system provides practical multicast services that can accommodate hundreds of receivers.
Experiments in Gasdynamics of Explosions (1973)

The field of fluid mechanics is rapidly advancing, driven by unprecedented volumes of data from experiments, field measurements, and large-scale simulations at multiple spatiotemporal scales. Machine learning (ML) offers a wealth of techniques to extract ...Read More
The Metabolic Response of Subjects with Type 2 Diabetes to a High-Protein, Weight-Maintenance Diet (2003)

In a randomized, crossover 5-wk study design, we recently reported that a weight-maintaining diet in which the percentage of total food energy as protein was increased from 15-30% resulted in a decrease in postprandial glucose and glycohemoglobin in people with untreated type 2 diabetes without a significant change in insulin. Protein was substituted for carbohydrate in the diet. The fat content remained unchanged. In this publication, we present data on other hormones and metabolites that were considered to potentially be affected by substitution of protein for carbohydrate in the diet. The mean fasting plasma GH and total IGF-I concentrations were elevated on the 30% protein diet. The urinary free cortisol also was increased. However, the urinary aldosterone was unchanged. Although urinary pH was decreased, calcium excretion was not significantly increased. The plasma postprandial alpha-amino nitrogen concentrations were increased, but the 24-h integrated concentration was unchanged, indicating an accelerated amino acid removal rate. The plasma urea nitrogen was increased as expected. The urea production rate also was increased such that a new steady-state fasting value was present. The calculated urea production rate accounted for 97% of the protein ingested on the 15% protein diet, but only 80% on the 30% protein diet, suggesting net nitrogen retention on the high-protein diet. In conclusion, an increase in dietary protein results in a number of metabolic adaptations in addition to reducing the circulating glucose concentration. Serum TSH, total T(3), free T(4), B(12), folate, homocysteine, uric acid, and creatinine concentrations were unchanged.
Contribution of Ca<sup>2+</sup>‐Activated K<sup>+</sup> Channels to Hyperpolarizing After‐Potentials and Discharge Pattern in Rat Supraoptic Neurones (2004)

The contribution of Ca(2+)-activated K(+) channels to hyperpolarizing after-potentials (HAP) of action potentials, to spike-frequency adaptation and thus to the shaping of discharge pattern, was examined in rat supraoptic magnocellular neurosecretory cells. In addition, the expression of BK channels and SK3 subunits of SK channels was studied using double immunofluorescence detection. The presence of BK channels and SK3 subunits was detected in many supraoptic neurones containing either vasopressin or oxytocin. Current-clamp recordings of current-induced spike trains revealed that HAPs comprise a fast and a slow HAP (fHAP and sHAP). Correlation analyses revealed that the increase of the fHAP in amplitude and spike broadening were correlated to a moderate gradual increase of the interspike interval and thus to weak spike-frequency adaptation. By contrast, marked prolongation of the interspike interval and strong spike-frequency adaptation depended on the appearance and on the amplitude of the sHAP. The sHAP and spike-frequency adaptation were blocked by cadmium, as well as by the SK channel antagonist apamin. The fHAP was attenuated by the BK channel antagonist iberiotoxin (IbTX), by the BK/IK channel antagonist charybdotoxin (ChTX) and by apamin. ChTX attenuated fHAPs throughout the entire spike train. By contrast, the IbTX-induced attenuation of the fHAP was restricted to the initial part of the spike train, while the apamin-induced attenuation slowly increased with the progression of the spike train. These results suggest that strong spike-frequency adaptation in supraoptic neurones essentially depends on the generation of the sHAP by activation of SK channels. Comparison of effects of IbTX, ChTX and apamin suggests a complementary contribution of SK-, BK- and IK-channels to fHAPs.
Environmental Photocatalysis 2013 (2013)

1 State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Luoshi Road No. 122, Wuhan 430070, China 2 Institute of Materials Science, National Centre for Scientific Research “Demokritos,” Ag. Paraskevi, Attikis, Greece 3 State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, China 4Department of Chemistry, Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Normal University, Shanghai 200234, China 5 Department of Chemistry, School of Science, Wuhan University of Technology, Wuhan 430070, China
A modular approach to composing access control policies (2000)

Article A modular approach to composing access control policies Share on Authors: Piero Bonatti Dip. Scienze dell'Informazione, Polo di Crema, Università di Milano, Via Bramante 65, 26013 Crema, Italy Dip. Scienze dell'Informazione, Polo di Crema, Università di Milano, Via Bramante 65, 26013 Crema, ItalyView Profile , Sabrina de Capitani di Vimercati Dip. Elettronica, Università di Brescia, Via Branze 38, 25123 Brescia, Italy Dip. Elettronica, Università di Brescia, Via Branze 38, 25123 Brescia, ItalyView Profile , Pierangela Samarati Dip. Scienze dell'Informazione, Polo di Crema, Università di Milano, Via Bramante 65, 26013 Crema, Italy Dip. Scienze dell'Informazione, Polo di Crema, Università di Milano, Via Bramante 65, 26013 Crema, ItalyView Profile Authors Info & Claims CCS '00: Proceedings of the 7th ACM conference on Computer and Communications SecurityNovember 2000 Pages 164–173https://doi.org/10.1145/352600.352623Online:01 November 2000Publication History 59citation1,075DownloadsMetricsTotal Citations59Total Downloads1,075Last 12 Months14Last 6 weeks0 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteGet Access
Is the presence of distant metastasis associated with c-myc amplification in gastric cancer? (1997)

The expression of the c-myc oncogenes has already been reported in human gastric carcinoma. Overexpression can be the consequence of oncogene amplification and often correlates with different prognostic factors. Authors investigated the value of c-myc oncogene amplification in 23 patients (9 male, 14 female, aged 28-85 yrs) with gastric cancer and its correlation to the following clinical and histopathological parameters: grade, TNM stage, Lauren's type, localisation and severity of disease. DNA was isolated from formalin-fixed, paraffin embedded tissue for quantitative dot-blot hybridisation. Amplified c-myc was found in 6 out of 23 cases. Its values ranged from 2.12 up to 18.2 (average 9.1). Significant association was found between the presence of c-myc amplification and distant metastasis (corr. coeff.: 0.5623, p < 0.01). High scores of the other parameters also correlated with c-myc, albeit not significantly. The result of cluster analysis, based on the similarity of the parameter values for the individual patients proved that the age was the decisive factor in creating two groups. The distribution of patients into these groups did not seem to coincide with the presence of c-myc amplification or distant metastasis, inspite of the proved correlation between them.
Comparative Androgenic and Anabolic Effects of Several Steroids (1957)

SummaryThe androgenic and anabolic effects of testosterone, testosterone propionate, methyl testosterone, methyl androstenediol, androstanolone and 17-ethyl-19-nortestosterone (Nilevar) were compared. The greatest androgenic responses were obtained with testosterone propionate while the most marked anabolic effects were observed with either testosterone propionate or 17-ethyl-19-nortestosterone. Compared to testosterone propionate, methyl androstenediol and androstanolone showed a small increase in the anabolic: androgenic potency ratio but a much more marked increase was observed with 17-ethyl-19-nortestosterone.
Effect of Implantation in Tumor-Bearing Animals (1961)

Arons, Marvin S. M.D., D.M.D.; Sabesin, Seymour M. M.D.; Smith, Robert R. M.D. Author Information
Direct Anodic Oxidation of Methanol on Supported Platinum/Ruthenium Catalyst in Aqueous Cesium Carbonate (1995)

Methanol electro‐oxidation was carried out on porous gas diffusion electrodes in electrolytes at 100 to 140°C and ambient pressures. It was found that Pt‐Ru bimetallic catalysts supported on graphitized carbon provided enhanced performance, compared to supported Pt catalyst. Performance curves, based on unit catalyst mass, for Pt‐Ru at 120°C matched or exceeded previously reported performance data for supported Pt or Pt black in concentrated electrolytes at 120 to 150°C at 8 atm, and for supported Pt‐Ru in concentrated electrolytes at 200°C. It was found that the polytetrafluoroethylene (PTFE) content in the reaction layer, and consequently the extent of wetting, had a marked effect on cell performance, and 20 to 30 weight percent PTFE was found to be optimal. Maximum cell performance was found at operating temperatures 10 to 15°C below the boiling pint of the electrolyte.
Targeting and Regulation of Reactive Oxygen Species Generation by Nox Family NADPH Oxidases (2009)

Nox family NADPH oxidases serve a variety of functions requiring reactive oxygen species (ROS) generation, including antimicrobial defense, biosynthetic processes, oxygen sensing, and redox-based cellular signaling. We explored targeting, assembly, and activation of several Nox family oxidases, since ROS production appears to be regulated both spatially and temporally. Nox1 and Nox3 are similar to the phagocytic (Nox2-based) oxidase, functioning as multicomponent superoxide-generating enzymes. Factors regulating their activities include cytosolic activator and organizer proteins and GTP-Rac. Their regulation varies, with the following rank order: Nox2 > Nox1 > Nox3. Determinants of subcellular targeting include: (a) formation of Nox-p22(phox) heterodimeric complexes allowing plasma membrane translocation, (b) phospholipids-binding specificities of PX domain-containing organizer proteins (p47(phox) or Nox organizer 1 (Noxo1 and p40(phox)), and (c) variably splicing of Noxo1 PX domains directing them to nuclear or plasma membranes. Dual oxidases (Duox1 and Duox2) are targeted by different mechanisms. Plasma membrane targeting results in H(2)O(2) release, not superoxide, to support extracellular peroxidases. Human Duox1 and Duox2 have no demonstrable peroxidase activity, despite their extensive homology with heme peroxidases. The dual oxidases were reconstituted by Duox activator 2 (Duoxa2) or two Duoxa1 variants, which dictate maturation, subcellular localization, and the type of ROS generated by forming stable complexes with Duox.
Plastic Accumulation in the North Atlantic Subtropical Gyre (2010)

Plastic marine pollution is a major environmental concern, yet a quantitative description of the scope of this problem in the open ocean is lacking. Here, we present a time series of plastic content at the surface of the western North Atlantic Ocean and Caribbean Sea from 1986 to 2008. More than 60% of 6136 surface plankton net tows collected buoyant plastic pieces, typically millimeters in size. The highest concentration of plastic debris was observed in subtropical latitudes and associated with the observed large-scale convergence in surface currents predicted by Ekman dynamics. Despite a rapid increase in plastic production and disposal during this time period, no trend in plastic concentration was observed in the region of highest accumulation.
Joint transmission (JT), an alternative rationale for the downlink of time division CDMA using multi-element transmit antennas (2002)

In the 3/sup rd/ Generation Partnership Project (3GPP) time division CDMA (TD-CDMA) has been selected as the air interface for the TDD (time division duplexing) bands of 3/sup rd/ generation (3G) mobile radio systems. In the case of TDD the same channel impulse responses are valid for both the uplink and the downlink. In state-of-the-art TD-CDMA characterized by joint data detection (JD) this equality cannot be exploited for enhancing the system performance and reducing system complexity. A novel TD-CDMA downlink transmission scheme is proposed. This scheme is termed joint transmission (JT). It utilizes the knowledge of the channel impulse responses gained by channel estimation at the base station in such a way that channel estimators are no longer required at the mobile stations and the computational expense of data detection is dramatically reduced. The scheme easily lends itself to the utilization of multi-element transmit antennas. Further, its application is not restricted to systems of the type TD-CDMA.
Magnetocardiography in Early Detection of Electromagnetic Abnormality in Ischemic Heart Disease (2008)

Ischemic heart disease (IHD) is one of the leading causes of death in the general population. Ischemia induces changes in the electrophysiologic properties of the myocardium that sometimes cannot be detected with rest ECG, which has a relatively low sensitivity. Magnetocardiography (MCG) which records the magnetic fields generated by the heart, is reported more sensitive for measuring myocardial electric activity. Many analyzing methods using MCG for the diagnosis of IHD are reported. Those methods can be summarized as follows: magnetic measurement of ST and TQ segment shift, spatial dispersion of the magnetocardiographically determined QT intervals (QT dispersion), ST current angle rotation of magnetic field (isomagnetic map) at rest or in exercise magnetocardiography, analyzing current arrow map during ventricular repolarization, and analyzing the integral values of reporalization In this review we will given an overview of the current status of MCG methods for the diagnosis of IHD.
Immunological function of the blood-cerebrospinal fluid barrier. (1989)

Because the brain lacks a true lymphatic system, it is unclear how peripheral lymphocytes recognize foreign antigens present in the central nervous system. This report demonstrates that the choroid plexus, which constitutes the blood-cerebrospinal fluid barrier, is able to present foreign antigen to, and stimulate the proliferation of, peripheral helper T lymphocytes through an Ia-dependent, major histocompatibility complex-restricted mechanism. Furthermore, in vivo, choroid plexus epithelial cells have access to, and are capable of taking up, virus-sized particles injected elsewhere into the cerebrospinal fluid. Thus these data suggest that the blood-cerebrospinal fluid barrier may play a role in immunological communication between the central nervous system and periphery, a function relevant to the initiation of immunological responses to central nervous system infections and autoimmune processes and for the surveillance of tumor cells in the cerebrospinal fluid.
New insight into the pyruvate decarboxylase-catalysed formation of lactaldehyde from H–D exchange experiments: a ‘water proof’ active site (1996)

Pyruvate decarboxylase from Saccharomyces cerevisiae catalyses the formation of lactaldehyde from sodium glyoxylate and acetaldehyde. By using deuteriated sodium glyoxylate (sodium [2-2H]glyoxylate monohydrate) as a substrate it was verified that the lactaldehyde formed retains the deuterium atom. The implications of the observed result for the enzyme mechanism are discussed in the light of conclusions derived from recent molecular modelling studies.
Identification of genes from pattern formation, tyrosine kinase, and potassium channel families by DNA amplification. (1989)

The study of gene family members has been aided by the isolation of related genes on the basis of DNA homology. We have adapted the polymerase chain reaction to screen animal genomes very rapidly and reliably for likely gene family members. Using conserved amino acid sequences to design degenerate oligonucleotide primers, we have shown that the genome of the nematode Caenorhabditis elegans contains sequences homologous to many Drosophila genes involved in pattern formation, including the segment polarity gene wingless (vertebrate int-1), and homeobox sequences characteristic of the Antennapedia, engrailed, and paired families. In addition, we have used this method to show that C. elegans contains at least five different sequences homologous to genes in the tyrosine kinase family. Lastly, we have isolated six potassium channel sequences from humans, a result that validates the utility of the method with large genomes and suggests that human potassium channel gene diversity may be extensive.
An endothelial cell surface factor(s) induced in vitro by lipopolysaccharide, interleukin 1, and tumor necrosis factor-<i>alpha</i> increases neutrophil adherence by a CDw18-dependent mechanism. (1986)

We examined the role of the neutrophil membrane antigen complex designated CDw18 (LFA-1/Mac-1/p150, 95) in human peripheral blood neutrophil adherence to cultured human umbilical vein endothelial cells (HEC) pretreated with lipopolysaccharide (LPS), interleukin 1 (IL 1), or recombinant tumor necrosis factor-alpha (rTNF-alpha). Pretreatment of HEC with LPS produced a dose-and time-dependent increase in subsequent neutrophil adherence (7 +/- 1% adherence to untreated HEC vs 38 +/- 3% adherence to HEC pretreated for 4 hr with LPS 150 ng/ml; mean +/- SE of 22 experiments: p less than 0.001). This effect was observed in primary and passaged HEC, but not in bovine aortic endothelial cells or human dermal fibroblasts. The LPS-induced activity appeared to be associated with the HEC surface, since it was not removed by washing and was not detected in the supernatant medium. Inhibition of RNA or protein synthesis during pretreatment of HEC with LPS prevented induction of the adherence-promoting activity. Pretreatment of HEC with IL 1 and rTNF-alpha produced a similar protein synthesis-dependent increase in neutrophil adherence to HEC. Coincubation of neutrophils with murine monoclonal antibody (MoAb) 60.3, an antibody directed to the CDw18 complex, produced a 70 +/- 4% inhibition of neutrophil adherence to LPS-pretreated HEC, 59 +/- 5% inhibition of adherence to IL 1-pretreated HEC, and 65 +/- 11% inhibition of adherence to rTNF-alpha-pretreated HEC (means +/- SE of 18, seven, and five experiments, respectively). Notably, MoAb 60.3 did not completely inhibit neutrophil adherence to pretreated HEC, although it completely inhibited adherence to untreated HEC when neutrophils were activated directly with phorbol ester. Similarly, the adherence of neutrophils from a patient with an inherited deficiency of the CDw18 complex to LPS-, IL 1-, and rTNF-alpha-pretreated HEC was markedly reduced compared with normal neutrophils (5 to 11% adherence with CDw18-deficient neutrophils vs 43 to 54% adherence with normal neutrophils), but adherence to pretreated HEC was still significantly greater than adherence to HEC that were not pretreated (2% adherence). We conclude that LPS, IL 1, and rTNF-alpha induce synthesis of an endothelial cell-surface factor(s) that promotes neutrophil adherence primarily by a mechanism involving the CDw18 complex. It thus appears that the CDw18 complex is important for augmented neutrophil adherence to endothelium in vitro whether the is stimulated directly by inflammatory mediators or indirectly by endothelial-dependent mechanisms.
Optimal dispersion management schemes for WDM solitonsystems (1997)

Optimal dispersion profiles for a WDM soliton system are obtained by minimising the radiative noise and the collision-induced frequency shift. A two-step optimal profile without dispersion slaving to the ideal exponential profile allows a large increase in the amplifier spacing with no significant deterioration of the system performance.
High Efficiency Solid-State Sensitized Solar Cell-Based on Submicrometer Rutile TiO<sub>2</sub> Nanorod and CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> Perovskite Sensitizer (2013)

We report a highly efficient solar cell based on a submicrometer (~0.6 μm) rutile TiO2 nanorod sensitized with CH3NH3PbI3 perovskite nanodots. Rutile nanorods were grown hydrothermally and their lengths were varied through the control of the reaction time. Infiltration of spiro-MeOTAD hole transport material into the perovskite-sensitized nanorod films demonstrated photocurrent density of 15.6 mA/cm(2), voltage of 955 mV, and fill factor of 0.63, leading to a power conversion efficiency (PCE) of 9.4% under the simulated AM 1.5G one sun illumination. Photovoltaic performance was significantly dependent on the length of the nanorods, where both photocurrent and voltage decreased with increasing nanorod lengths. A continuous drop of voltage with increasing nanorod length correlated with charge generation efficiency rather than recombination kinetics with impedance spectroscopic characterization displaying similar recombination regardless of the nanorod length.
Microvascular Resistance Predicts Myocardial Salvage and Infarct Characteristics in ST‐Elevation Myocardial Infarction (2012)

Microvascular resistance measured during primary percutaneous coronary intervention significantly predicts myocardial salvage, infarct characteristics, and left ventricular ejection fraction in patients with ST-elevation myocardial infarction. (J Am Heart Assoc. 2012;1:e002246 doi: 10.1161/JAHA.112.002246).
Single-cell transcriptomics of the mouse kidney reveals potential cellular targets of kidney disease (2018)

Our understanding of kidney disease pathogenesis is limited by an incomplete molecular characterization of the cell types responsible for the organ's multiple homeostatic functions. To help fill this knowledge gap, we characterized 57,979 cells from healthy mouse kidneys by using unbiased single-cell RNA sequencing. On the basis of gene expression patterns, we infer that inherited kidney diseases that arise from distinct genetic mutations but share the same phenotypic manifestation originate from the same differentiated cell type. We also found that the collecting duct in kidneys of adult mice generates a spectrum of cell types through a newly identified transitional cell. Computational cell trajectory analysis and in vivo lineage tracing revealed that intercalated cells and principal cells undergo transitions mediated by the Notch signaling pathway. In mouse and human kidney disease, these transitions were shifted toward a principal cell fate and were associated with metabolic acidosis.