Miracle-dz/UniFAR-FTUs huggingface dataset:
Attention spatiale auditive et visuelle chez des patients héminégligents et des sujets normaux : étude clinique, comportementale et électrophysiologique

L'attention est une fonction cognitive a la base d'un grand nombre de nos comportements, elle permet le deroulement d'autres fonctions comme la memoire ou le raisonnement. L'objectif principal de ces etudes etait de determiner les caracteristiques anatomiques et fonctionnelles des processus attentionnels automatiques et controles, dans les modalites auditives et visuelles. Lors de tâches de detection de cibles auditives ou visuelles, lateralisees a gauche ou a droite, nous avons recueilli des indices comportementaux et electrophysiologiques chez des sujets sains et des patients heminegligents affectes de lesions temporo-parietales droites. Ces etudes ont mis en evidence une organisation cerebrale differente, d'une part entre les processus attentionnels automatiques et controles, et d'autre part entre les modalites auditives et visuelles. Ces travaux confirment l'implication primordiale de la region parietale droite dans les processus attentionnels et specifient que cette asymetrie hemispherique serait plus importante pour les processus attentionnels controles que pour les processus attentionnels automatiques.
Stability and Optimal Control of the Packet Switching Broadcast Channel

The purpose of this paper is to analyze and optimize the behavior of the broadcast channel for a packet transmission operating in the slotted mode Mathematical methods of Markov chain theory are used to prove the inherent lnstablhty of the system If no control is apphed, the effective throughput of the system will tend to zero tf the population of user terminals ~s sufficiently large Two classes of control pohcles are examined, the first acts on admissions to the channel from active terminals, and the second modifies the retransmlss~on rate of packets In each case sufflc~ent conditions for channel stability are given. In the case of retransm~sslon controls it is shown that only pohcles which assure a rate of retransmlsslon from each blocked terminal of the form off = 1/n, where n is the total number of blocked terminals, will yield a stable channel It ts also proved that the optimal pohcy which maximizes the maximum achievable throughput wtth a stable channel IS of the formf = (1 - k)/n Simulations illustrating channel lnstabdlty and the effect of the opnmal control are prowded
Real-Time Motion Capture Technology on a Live Theatrical Performance with Computer Generated Scenery

The employment of innovative forms of technology in the areas of art and entertainment is receiving significant attention from the research community in the context of evaluating new forms of expression. Recent developments in tangible interaction, pervasive sensing, wearable computing, and mobile communications bring about the potential to connect, in an unprecedented manner, persons to places (real and virtual) and media, as well as to other persons and objects. The work presented here brings together a research team that is multidisciplinary, scientists, engineers, 3D-artists along with members from the art domain such as stage director, theatrical costumier, choreographer and actors, in order to synthesize a live theatrical performance that jointed technology and art. Real time motion capture data was streamed on a multi-screen topology, while real time generated virtual scenery was creating the virtual context of each act. Live actors were interacting with a digital avatar that was rigged to a motion capture suit through out the theatrical act. The entire setup was evaluated on a theatrical case study that was presented to audience at the ”Theatron”, a reconfigurable space at the cultural center of Hellenic Cosmos, providing significant feedback on the acceptance of utilizing such a technology both from the audience perspective as well as the experts that live theatrical performances involve.
Some Grammatical Structures of Programming Languages as Simple Bracketed Languages

We consider in this paper so called simple bracketed languages having special limita- tions. They are sometimes used for the definitions of some grammatical structures of programming languages. Generally speaking, these languages are context-free, but not deterministic context- free, i.e., they cannot be defined by deterministic push-down automata. For the simple bracketed languages having special limitations, the equivalence problem is decidable. We obtain the sufficient conditions for the representation some language by special sequences of simple bracketed languages. We also consider the examples of grammatical structures as the simple bracketed languages. Therefore, we can decide equivalence problem for some grammatical structures of programming languages, and such structures define neither regular, nor deterministic context-free languages.
Disease severity and the effect of fluticasone propionate on chronic obstructive pulmonary disease exacerbations

Exacerbations of chronic obstructive pulmonary disease (COPD) are associated with worse health and increased healthcare utilisation. The Inhaled Steroids in Obstructive Lung Disease in Europe (ISOLDE) study in COPD showed a 26% reduction in the yearly rate of exacerbations in patients treated with fluticasone propionate (FP) compared to placebo, but did not indicate which patients showed greatest benefit. In this study the patients were stratified into mild and moderate‐to‐severe COPD using the American Thoracic Society criterion of forced expiratory volume in one second (FEV1) 50% predicted, and the total number of exacerbations and those requiring treatment with oral corticosteroids were examined. There were 391 (195 FP) patients with mild COPD and 359 (180 FP) patients with moderate‐to‐severe disease. The exacerbation rate was highly skewed in mild disease, but more normally distributed in moderate‐to‐severe disease. FP reduced the overall exacerbation rate in moderate‐to‐severe disease (FP median rate 1.47 yr−1, placebo 1.75 yr−1), but not in mild disease (FP 0.67 yr−1, placebo 0.92 yr−1). FP use was associated with fewer patients with ≥1 exacerbation·yr−1 being treated with oral corticosteroids (mild: FP 8%, placebo 16%; moderate‐to‐severe: FP 17%, placebo 30%). Effects of fluticasone propionate on exacerbations were seen predominantly in patients with a postbronchodilator forced expiratory volume in one second <50% predicted. These data support recommendations in the Global Initiative for Chronic Obstructive Disease treatment guidelines that inhaled corticosteroids should be considered in patients with moderate‐to‐severe chronic obstructive pulmonary disease who experience recurrent exacerbations.
Administration of exogenous hormones in ovulatory and embryonic response in Pelibuey sheep

The objective of this study was to evaluate the effect of two sources of commercial porcine pituitary-derived follicle-stimulating hormone (pFSH) and pFSH-porcine Luteinizing Hormone (pLH), including equine chorionic gonadotropin (eCG), in ovulatory and embryonic response in Pelibuey sheep. Twenty-four Pelibuey sheep were used and were assigned randomly to four treatments (n = 6): (T1; 200 mg pFSH-Folltropin® ); (T2; 200 mg pFSH + 300 UI eCG-Folligon® ); (T3; 250 UI pFSH/pLH-Pluset® ) and (T4; 250 UI pFSH/pLH + 300 UI eCG). The interval of hours from withdrawal of the device to the beginning of oestrus (BO) was lower (p < .05) in sheep treated with eCG (T2 = 8.0 ± 1.4 and T4 = 10.0 ± 2.8) than in those without eCG (T1 = 12.6 ± 0.6 and T3 = 20.6 ± 2.4). The ovulatory rate (OR) was higher (p < .05) in T1 = 15.5 ± 2.8 and T2 = 15.6 ± 1.4, compared to T3 = 8.1 ± 3.2 and T4 = 11.8 ± 2.8; a significant difference was not shown between them (T1 vs. T2 and T3 vs. T4) when including eCG. The number of non-fertilized oocytes (NFO) was lower (p ˂ .05) in T1 = 0.8 ± 0.4 and T3 = 1.8 ± 1.8, compared to those that included eCG (T2 = 6.3 ± 2.4 and T4 = 2.1 ± 1.2). The number of transferable embryos (TE) was higher (p < .05) when FSH was applied (T1 = 5.8 ± 1.1), compared with (T2 = 2.6 ± 1.1, T3 = 2.3 ± 1.4 and T4 = 2.8 ± 1.5). The commercial treatments (pFSH or pFSH-pLH) in combination with eCG did not improve OR, NFO and TE. However, the exclusive pFSH (Folltropin) treatment presented a higher OR, lower number of NFO and higher number of TE.
Prediction of social risk perception on petition in China

Petition attracts more attention because of its unique impact on social life and its increasing trends in China. In this study, we analyzed the causes and classification of petition in terms of social risk perception, and constructed a system of predicting indices by using online big data. First, we reclassified offline petitions in terms of social risk perception, and built online searching indices of certain kinds of petition by using data from “Google trend” and “Baidu index”. Second, we analyzed the predicting effect of social risk perception on online searching indices of petition by Granger causality analysis. Finally, we built an integral predicting model of petition by considering social risk perceptions and online searching indices at the same time. We found that the correlation between offline petitions and Baidu index of petition is more significant than that of Google index. We also found a more significant predicting effect between social risk perception and Baidu index of petition. Moreover, certain kinds of social risk perception such as economy & finance risk perception, have significant predicting effect not only on their corresponding kind of online searching indices of petitions, but also on other relevant kinds of online searching indices of petitions. Therefore, we have demonstrated the possibility of using the correlation among social risk perception indices, online searching indices of petitions and offline petitions to construct online predicting indices of petitions, from which the dominant social contradictions and their relationship in modern China are reflected.
Dissecting eukaryotic translation and its control by ribosome density mapping

Translation of an mRNA is generally divided into three stages: initiation, elongation and termination. The relative rates of these steps determine both the number and position of ribosomes along the mRNA, but traditional velocity sedimentation assays for the translational status of mRNA determine only the number of bound ribosomes. We developed a procedure, termed Ribosome Density Mapping (RDM), that uses site-specific cleavage of polysomal mRNA followed by separation on a sucrose gradient and northern analysis, to determine the number of ribosomes associated with specified portions of a particular mRNA. This procedure allows us to test models for translation and its control, and to examine properties of individual steps of translation in vivo. We tested specific predictions from the current model for translational control of GCN4 expression in yeast and found that ribosomes were differentially associated with the uORFs elements and coding region under different growth conditions, consistent with this model. We also mapped ribosome density along the ORF of several mRNAs, to probe basic kinetic properties of translational steps in yeast. We found no detectable decline in ribosome density between the 5′ and 3′ ends of the ORFs, suggesting that the average processivity of elongation is very high. Conversely, there was no queue of ribosomes at the termination site, suggesting that termination is not very slow relative to elongation and initiation. Finally, the RDM results suggest that less frequent initiation of translation on mRNAs with longer ORFs is responsible for the inverse correlation between ORF length and ribosomal density that we observed in a global analysis of translation. These results provide new insights into eukaryotic translation in vivo.
Establishment of a pure vascular endothelial cell line from human placenta.

UNLABELLED Endothelial cells (EC) from various sectors of the circulatory system have distinct characteristics, some of which have only been identified in cultures upon their isolation from specific organs or tissues. Cultured vascular EC, derived from the human placenta (HPEC), may be helpful for studying their specific function in the fetoplacental unit, such as in the control of maternofetal traffic. In this paper we report an improved method for isolation, purification and culture of HPEC, that implies an enzymatic perfusion of the term placenta, followed by separation of resulting cells on a Percoll density gradient. The inoculated starting suspension was purified by a two-step selection procedure, based on differential trypsinization, leading to a pure population of about 8x10(7)cells/placenta, with 2.7-3.4 population doublings. The average population doubling time during eight passages was 60-65 h and the life span of HPEC was approximately 45-50 population doublings. The cell morphology at optical and electron microscopical level revealed a good differentiation of HPEC, which were endowed with numerous plasmalemmal vesicles (caveolae) and Weibel-Palade bodies. The transendothelial electrical resistance of the HPEC monolayer varied between 22 and 52 Ohm/cm(2). The cultures were mycoplasma free, as revealed by fluorescence microscopy using DNA dyes and the polymerase chain reaction (PCR). The negative immunofluorescent reaction for keratin confirmed that the HPEC were not contaminated with either type of placenta cells, as syncytiotrophoblast. Cultured HPEC demonstrated a strong reaction for von Willebrand factor antigen (by fluorescence microscopy), took up AcLDL-DiI and expressed active angiotensin converting enzyme. These characteristics substantiate the endothelial nature of cultured cells. The interactions with different lectins (BS-I, SBA, RCA, UEA and WGA) assessed by fluorescence microscopy and blotting reveal a strong reaction of HPEC with UEA and a negligible reaction with BS-I lectin. WGA lectin displayed a marked fluorescence staining in subconfluent HPEC, and at the level of intracellular clefts in post-confluent cultures. IN CONCLUSION (i) we have obtained a pure line of cultured EC originating from the human placental venous side of the circulatory tree; (ii) the cells have the general characteristics and markers ascribed to EC; (iii) as opposed to large human placental vessels, HPEC do not react to BS-I lectin and, unlike human umbilical vein EC, have a much higher proliferation rate and a long lifespan; (iv) HPEC expressed a characteristic glycosylated coat particularly rich in alpha- L -fucose and beta-GlcNAc containing glycocompounds.
Invasive Coronary Physiology for Assessing Intermediate Lesions

Atherosclerotic coronary artery narrowings, which provoke myocardial ischemia are the most common cause of angina pectoris and lead to adverse cardiac events.1 Removing the ischemic potential of a stenosis decreases symptoms and improves outcomes.2 Invasive coronary angiography remains the primary method for identifying coronary artery stenoses, but its inability to diagnose lesions responsible for inducing myocardial ischemia, particularly those of intermediate diameter stenosis remains a major limitation.3,4 To address this issue, there has been a long-standing interest in coronary wire-based methods for assessing coronary artery physiology. The goal of this review is to describe past efforts, define current standards, and address remaining controversy in the area of the invasive functional assessment of intermediate coronary artery stenosis. In the early 1970s, Gould et al5 performed seminal laboratory studies demonstrating that resting coronary flow remains unchanged with increasing epicardial coronary stenosis until the vessel lumen is >85% narrowed. They described the importance of inducing hyperemia to bring out the ischemic potential of more moderate coronary stenoses by measuring coronary flow reserve (CFR), defined as maximal coronary flow divided by resting flow. They showed that CFR had an inverse relationship to progressive coronary stenosis. However, it was not until the early 1990s, when a suitable Doppler wire became available to measure distal coronary flow velocity that invasive CFR and other velocity-based assessments could be performed readily in humans.6 Because coronary flow is proportional to coronary flow velocity, CFR can be estimated by measuring the coronary velocity at rest and during maximal vasodilation, typically after administration of adenosine. Subsequently, several studies were performed demonstrating the ability of Doppler wire-derived CFR to identify physiologically important coronary narrowings and to guide percutaneous coronary intervention (PCI). 7,8 These experiences, however, highlighted some important limitations of this technique, which …
Preparation and piezoelectric properties of textured PZT ceramics using PZT nano fibers

PZT nano piezoelectric fibers were prepared by hydrothermal-template method. The effects of some reaction conditions on preparation were investigated, such as PH value, reaction temperature and time. The optimal hydrothermal conditions for preparing PZT nano fibers are that pH value is 13, reaction temperature is 190 °C, hydrothermal reactor filling degree is 60 %–70 %, reaction time is 10h, and the activated carbon is as the template. Based on the observation from scanning electron microscopy (SEM) show that the diameter of PZT fibers is around 100nm with the length up to a few microns, and the fibers are arranged orderly in one direction. PZT ceramics made of the fibers was obtained through pressing carefully the fibers along a direction as possible, then sintering at the temperature of 1050 °C for 1.5 hour. The textured PZT ceramic microstructure was analyzed using X-ray diffraction (XRD) techniques. The piezoelectric properties were determined by impedance analyzer. The results indicated that the PZT ceramic had a high value of kt/kp (1.8567) compared with the conventional PZT ceramic made of milled PZT powder. It means that the novel textured PZT ceramic shows very good anisotropic property and has potential application as a sensor or device with high direction sensitivity.
WLC41-2: Adaptive Regenerate and Forward Cooperative Diversity System based on Quadrature Signaling

In this paper, an adaptive regenerate and forward cooperative diversity (CD) system based on quadrature signaling is proposed. The bit error probability (BEP) of the proposed CD system is derived in terms of the received signal-to-noise ratio (SNR) at the relay and the destination. The derived upper bound of the BEP is validated by simulations. Further, it is shown that the proposed CD system can achieve maximum diversity order of two and performs better even though the inter-user channel is poor. The power consumption of the CD system is location dependent for given BEP. To optimize the power consumption of the proposed CD system, an optimal power allocation strategy is proposed.
Viral haemorrhagic septicaemia virus IVb experimental infection of rainbow trout, Oncorhynchus mykiss (Walbaum), and fathead minnow, Pimphales promelas (Rafinesque).

Viral haemorrhagic septicaemia virus (VHSV) in the Great Lakes has had a dramatic impact on fish husbandry because of the implications of the presence of a reportable disease. Experimental infections with VHSV IVb were conducted in rainbow trout, Oncorhynchus mykiss (Walbaum), and fathead minnows, Pimphales promelas (Rafinesque), to examine their susceptibility and the clinical impact of infection. Triplicate groups of rainbow trout (n = 40) were injected intraperitoneally (i.p.) with 100 microL 10(6.5)50% tissue culture infective doses (TCID(50)) or waterborne exposed to graded doses (10(4.5), 10(6.5), and 10(8.5) TCID(50) mL(-1)) of VHSV IVb. Duplicate groups of fathead minnows (n = 15) were i.p. injected with (10(6.5) TCID(50) 100 microL) or waterborne exposed (10(6.5) TCID(50) mL(-1)). All experiments were performed with single-pass well water maintained at 12 degrees C. Following either i.p. or waterborne exposure, VHSV RNA was detectable in both rainbow trout and fathead minnows by nested reverse transcription polymerase chain reaction (nRT-PCR) as early as 4-7 days post-infection (p.i.). Infected fathead minnow and rainbow trout exhibited lesions characteristic of VHS at 9 and 15 days p.i. , respectively. Route of exposure had little effect on the onset of clinical signs. Cumulative mean mortality in rainbow trout was 4.4%, 2.6%, 2.6% and less than 1% in the i.p., high, medium and low dose waterborne exposures, respectively. Cumulative average mortality of 50% and 13% occurred in i.p. and waterborne-exposed fathead minnows, respectively. VHSV was detected from pooled rainbow trout tissue by RT-PCR and virus isolation at 38 days p.i. , but not at 74 days p.i. , regardless of the exposure route. Immunohistochemistry (IHC) with a rabbit antibody to VHSV IVb revealed the viral tissue tropisms following infection, with the identification of viral antigen in myocardium and necrotic branchial epithelium of both species and in gonadal tissue of fathead minnows. Rainbow trout, but not fathead minnows, are relatively refractory to experimental infection with VHSV IVb.
Contributions of Autotrophic and Heterotrophic Nitrifiers to Soil NO and N2O Emissions

Soil emission of gaseous N oxides during nitrification of ammonium represents loss of an available plant nutrient and has an important impact on the chemistry of the atmosphere. We used selective inhibitors and a glucose amendment in a factorial design to determine the relative contributions of autotrophic ammonium oxidizers, autotrophic nitrite oxidizers, and heterotrophic nitrifiers to nitric oxide (NO) and nitrous oxide (N2O) emissions from aerobically incubated soil following the addition of 160 mg of N as ammonium sulfate kg−1. Without added C, peak NO emissions of 4 μg of N kg−1 h−1 were increased to 15 μg of N kg−1 h−1 by the addition of sodium chlorate, a nitrite oxidation inhibitor, but were reduced to 0.01 μg of N kg−1 h−1 in the presence of nitrapyrin [2-chloro-6-(trichloromethyl)-pyridine], an inhibitor of autotrophic ammonium oxidation. Carbon-amended soils had somewhat higher NO emission rates from these three treatments (6, 18, and 0.1 μg of N kg−1 h−1 after treatment with glucose, sodium chlorate, or nitrapyrin, respectively) until the glucose was exhausted but lower rates during the remainder of the incubation. Nitrous oxide emission levels exhibited trends similar to those observed for NO but were about 20 times lower. Periodic soil chemical analyses showed no increase in the nitrate concentration of soil treated with sodium chlorate until after the period of peak NO and N2O emissions; the nitrate concentration of soil treated with nitrapyrin remained unchanged throughout the incubation. These results suggest that chemoautotrophic ammonium-oxidizing bacteria are the predominant source of NO and N2O produced during nitrification in soil.