Miracle-dz/UniFAR-FTUs huggingface dataset:
Propuesta de un Esquema de Gestión de Calidad de Servicios en Entornos Vehicular Cloud

Este articulo presenta una propuesta de un esquema de gestion de la calidad en los servicios ofrecidos en un entorno Vehicular Cloud. Cabe destacar que la arquitectura en la que se desarrolla nuestra propuesta consta principalmente de una comunicacion vehiculo a infraestructura (V2I) donde las infraestructuras seran los nodos fijos y los enlaces a la nube, un recurso remoto con conexion a internet, la cual tendra un registro de credenciales y sesiones, por mencionar algunos, que gestionan los servicios ofrecidos en la red. Esta investigacion se enfocara especificamente al servicio de almacenamiento (SaaS), el cual mediante un mecanismo de tarificacion dinamico podra ser alquilado por nodos moviles autorizados como "proveedores" y consumido por nodos moviles en la red identificados como "clientes". Todo ello procurando siempre el beneficio, satisfaccion y oportunidades de comercio para los usuarios de los entornos Vehicular Cloud.
Multi-product newsvendor problem with hybrid demand and its applications to ordering pharmaceutical reference standard materials

Uncertainty is inherent in the newsvendor problem. Most of the existing literature is devoted to characterizing the uncertainty either by randomness or by fuzziness. However, in many cases, randomness and fuzziness simultaneously appear in the same problem. Motivated by this observation, we investigate the multi-product newsvendor problem by considering the demands as hybrid variables which are proposed to describe quantities with double uncertainties. According to the expected value criterion, we formulate an expected profit maximization model and convert it to a deterministic form when the chance distributions are given. We discuss two special cases of hybrid variable demands and give their chance distributions. Then we design hybrid simulation to estimate the chance distribution and use genetic algorithm to solve the proposed models. Finally, we proceed to present numerical examples of purchasing pharmaceutical reference standard materials to illustrate the applicability of our methodology and the effectiveness of genetic algorithm.
Photonic molecules: a new concept for wavelength tunable optical delay

The paper describes and light propagation modes in coherently coupled spherical microcavities covered with CdTe nanocrystals. We observe a rich new spectrum of resonances due to the lower symmetry of the two coupled microspheres: the photonic molecule. The quality factor Q of these new resonances are much greater than in the parent microspheres, indicating the possibility of using such coupled microcavities for the delaying of optical signals. The large number of resonances shows the possibility to have wavelength selectivity in the photonic molecule structure. In addition, we show the potential for wavelength switching with the photonic molecule structure.
End-to-end equalization experiments in amplified WDM lightwave systems

It is experimentally verified that signal-to-noise ratio equalization in amplified wavelength-multiplexed lightwave systems can be achieved by adjusting input optical signal powers according to a simple algorithm. The experiment involved four channels spaced by 2 nm transmitted through 550 km of fiber with the aid of eight erbium-doped optical amplifiers. <<ETX>>
ASSESSMENT OF AUTONOMIC FUNCTION WITH HEART RATE TURBULENCE AND HEART RATE VARIABILITY IN YOUNG OBESE PATIENTS

Background: Sudden cardiac death (SCD) is a main cause of cardiovascular mortality in developed countries. Obesity-related impairment of the cardiovascular system may be exist even at the young age, and progress asymptotical for decades before clinical manifestations present in. Death may be sudden in obese individuals with or with- out arrhythmias Heart rate turbulence (HRT) and Heart rate variability (HRV) both of which reflects autonomic dysfunction is a proven non-invasive electrocardiographic predictor of cardiac death. Aims & Objectives: To evaluate autonomic function with Heart rate turbulence (HRT) and Heart rate variability (HRV) in young obese patients without comorbidities. Materials and Methods: 60 young patients with age ≤35 of body mass index (BMI) ≥30 (average 34.12 ± 2.59) and 40 young healthy patients with ≤35 of BMI <25 (23.25 ± 1.14) matched age and sex were divided in two groups (group 1: obese patients and group 2: Non-obese patients respectively). 24 hours ambulatory holter ECG recordings were obtained from all patients. Turbulence onset (TO), Turbulence slope (TS), Time domain HRV (SDNN, mean RR, RMSSD, sNN50 were analysed and compared between two groups. Results: RMSSD (ms) and Total sNN50 was decreased in obese patients compared to non- obese patients (32.57 ± 7.40 vs 40.15 ± 6.80; p: 0.003 and 8616 ± 5300 vs 10920 ± 6700; p<0,001 respectively) and SDNN (ms) was decreased in obese patients compared those with no-obese. (122.79±23.19 vs 164.52±15.48 p<0,001 respectively). TS and TO was different between groups (8.85 ± 6.67 vs. 15.96 ± 12.37; p < 0,001 and 0.45 ± 1.62 vs -0.22 ± 0.32 respectively). Conclusion: Autonomic dysfunction in young obese patients without comorbidities was impaired. These patients may be under risk of adverse cardiovascular outcome including fatal cardiac arrhythmias.
Bochner-Almost Periodicity for Stochastic Processes

We compare several notions of almost periodicity for continuous processes defined on the time interval I = ℝ or I = [0, + ∞) with values in a separable Banach space 𝔼 (or more generally a separable completely regular topological space): almost periodicity in distribution, in probability, in quadratic mean, almost sure almost periodicity, almost equi-almost periodicity. In the deterministic case, all these notions reduce to Bochner-almost periodicity, which is equivalent to Bohr-almost periodicity when I = ℝ, and to asymptotic Bohr-almost periodicity when I = [0, + ∞).
The Dexamethasone Suppression Test as a Discriminator among Subtypes of Psychotic Patients

Summary Plasma Cortisol levels examined at 16.00 hours after dexamethasone in 31 controls and in 34 psychotic patients with various diagnoses, suggests that the ranges of such levels may help to discriminate among subtypes of psychotic patients. They were significantly higher in the unipolar depressed psychotic group than in control subjects or in psychotic patients with bipolar depression or schizophrenia. Moreover, the distribution of values differed between groups. Whereas 8 of 14 psychotic patients with unipolar depressive illness had post-dexamethasone Cortisol values ≥ 14 μg/dl, none of the remaining psychotic patients had similarly high values. Implications of these data are discussed.
Host tissues as microhabitats for Wolbachia and quantitative insights into the bacterial community in terrestrial isopods

Animal–bacterial symbioses are highly dynamic in terms of multipartite interactions, both between the host and its symbionts as well as between the different bacteria constituting the symbiotic community. These interactions will be reflected by the titres of the individual bacterial taxa, for example via host regulation of bacterial loads or competition for resources between symbionts. Moreover, different host tissues represent heterogeneous microhabitats for bacteria, meaning that host‐associated bacteria might establish tissue‐specific bacterial communities. Wolbachia are widespread endosymbiotic bacteria, infecting a large number of arthropods and filarial nematodes. However, relatively little is known regarding direct interactions between Wolbachia and other bacteria. This study represents the first quantitative investigation of tissue‐specific Wolbachia–microbiota interactions in the terrestrial isopod Armadillidium vulgare. To this end, we obtained a more complete picture of the Wolbachia distribution patterns across all major host tissues, integrating all three feminizing Wolbachia strains (wVulM, wVulC, wVulP) identified to date in this host. Interestingly, the different Wolbachia strains exhibited strain‐specific tissue distribution patterns, with wVulM reaching lower titres in most tissues. These patterns were consistent across different host genetic backgrounds and might reflect different co‐evolutionary histories between the Wolbachia strains and A. vulgare. Moreover, Wolbachia‐infected females carried higher total bacterial loads in several, but not all, tissues, irrespective of the Wolbachia strain. Taken together, this quantitative approach indicates that Wolbachia is part of a potentially more diverse bacterial community, as exemplified by the presence of highly abundant bacterial taxa in the midgut caeca of several A. vulgare populations.
Risk factors for venous thrombosis in Swedish children and adolescents

Aim: To identify prothrombotic risk profiles in children and adolescents referred to a regional coagulation centre in southern Sweden for a first thrombotic event. Methods: One hundred and twenty‐eight consecutive children and adolescents (newborn to 20 y) referred for evaluations of a first episode of venous thrombosis were investigated. Clinical data were collected retrospectively, and the following variables were investigated: protein C, protein S, antithrombin; resistance to activated protein C; the genotypes FV‐G1691A, F II‐G20210A, MTHFR‐C677T, MTHFR‐ A1298C; coagulation factors VIII and XI. Results: 104/128 subjects (81%) had identifiable acquired risk factors, most often indwelling catheters and hormone therapy. Predisposing genetic factors related to thromboembolic events were revealed in 53/83 (64%) of subjects who agreed to follow‐up blood sampling, and 17/83 (20%) had two or more inherited risk factors. Combinations of genetic and acquired risk factors were identified in 45/83 (54%) of the subjects, and 77/83 (93%) had at least one such risk factor. Both sexes had one peak in frequency at less than 1 y of age and then an increase during adolescence, more in females than in males. Plasma values for coagulation factors VIII and XI were age appropriate and showed a normal Gaussian distribution.
Susceptibility of various cell culture systems to bovine viral diarrhea virus.

A comparative study was carried out on the susceptibility of primary bovine embryo kidney (pBEK) cell cultures and those of three other cell culture systems, i.e., primary calf testicle (pCT) cells and two cell lines, one of which originated from bovine embryonic trachea (EBTr) and the other from buffalo lung (IMR-31), to bovine viral diarrhea (BVD) virus. The virus titers obtained in the three culture systems under study did not differ significantly from those of pBEK cells. Moreover, the growth curve study demonstrated thad the pCT cells, as well as the two cell lines, were similar to the pBEK cultures in their susceptibility to the virus. Accordingly, it appeared reasonable to conclude that pCT, EBTr and IMR-31 cell cultures possess the general requirements for use in studies on the BVD virus. However, inasmuch as the cytopathic effects (CPE) produced by the EBTr and the IMR-31 cell lines did not display any distinctive characteristics typical of BVD virus-induced CPE, it is recommended that the two cell lines not be used for isolation of the virus from specimen material.
Seasonal velocity changes at Duofeng glacier in West Kunlun Shan, China, detected by ALOS/PALSAR

Owing to its average elevation higher than 4000 m, a number of mountain glaciers are developed in Tibetan plateau. Those glaciated areas are thus termed as the Third Pole (TP) region. As is the case for North / South Pole region, the TP glaciers will also sensitively respond to global warming, contributing to global sea level rise. Moreover, the glaciers in TP are crucial water resource for people in the arid areas, directly influencing the social, agricultural and economic environment. However, harsh and remote environment prevents us from routinely monitoring those TP glaciers. In particular, there are few detailed studies in the West Kunlun Shan (WKS) [1–3]. Here we report out detection of seasonal velocity changes at Duofeng glacier, the largest north-facing one in WKS, using ALOS/PALSAR data. While space-borne Synthetic Aperture Radar (SAR) techniques have been applied to many glaciers in the planet to study glacier surface flow [e.g., 4], there are few such systematic studies in WKS.
Role of nitric oxide in adenosine receptor-mediated relaxation of porcine coronary artery.

In the present study, using porcine coronary artery rings in vitro, we examined the role of the nitric oxide (NO) pathway in endothelium-dependent vasorelaxant effects of the 5'-uronamide adenosine agonists, 5'-(N-ethylcarboxamido)adenosine (NECA) and 2-[p-(2-carboxyethyl)]phenylethyl-amino-5'-N-ethylcarboxamidoadenosine (CGS-21680) as opposed to the endothelium-independent actions of the C2- and N6-substituted analogues, 2-chloroadenosine (CAD) and N6-cyclopentyladenosine (CPA). The NO synthase inhibitor, NG-monomethyl-L-arginine (L-NMMA, 30 microM), and the NO-destroying agent, 6-anilino-5,8-quinolinedione (LY-83583, 10 microM), attenuated the relaxations of endothelium-intact but not -denuded rings to NECA and CGS-21680. The effect of L-NMMA on NECA-induced relaxation was reversed by L-arginine (100 microM), a substrate for NO synthesis. In the endothelium-intact tissues, both NECA and CGS-21680 elicited enhanced production of nitrite, a stable metabolite of NO. This was also attenuated by L-NMMA or endothelium removal. Furthermore, NECA (10 microM) induced augmentation of guanosine 3',5'-cyclic monophosphate (cGMP) production in the intact arteries, which was also inhibited by L-NMMA, LY-83583, or endothelium removal. In contrast, vasorelaxant responses generated by CAD and CPA were not altered by either L-NMMA or LY-83583. Both agents (10 microM) were also unable to alter nitrite and/or guanosine 3',5'-cyclic monophosphate (cGMP) levels of the coronary artery. (ABSTRACT TRUNCATED AT 250 WORDS)
Analysing behaviour of RRC filter over different modulation formats over AWGN Channel

With the evolution of new communication technologies, requirement of data rate is increasing for service providers. So it exists several digital modulation techniques to enhance bandwidth efficiency. Use of pulse shaping can enhance system performance drastically. In this paper we provide an analysis of the root raised cosine (RRC) filter by using various M-ary QAM (M = 3D 32,64 & 128) modulation formats over an AWGN fading channel. Performance has been analysed using eye diagram and constellation diagram taking BER as measure of performance. Results presented prove that increasing the value of the modulation's order added to a RRC pulse shaping makes discrease BER with the increase in data rate.
I/O library comparison methodology for 40nm CMOS technology

A good methodology flow can improve significantly the time needed to develop an I/O library. It is mandatory that the fastest methodology also gives accurate results. Given the new technology nodes, it is important to re-evaluate all the software characterization formats (NLDM, CCS and ECSM) and see if there is room for improvement. The analysis will be conducted by comparing liberty file data with HSPICE simulation results.
Inclusion of CpG Adjuvant with Plasmid DNA Coding for NcGRA7 Improves Protection against Congenital Neosporosis

ABSTRACT The present study showed that incorporation of CpG adjuvant into plasmid DNA coding for NcGRA7 antigen resulted in a twofold increase in the level of protection against congenital transfer of Neospora caninum. The level of protection was considerably higher than that observed in pups born from dams immunized with nonrecombinant plasmid.
Multiple sclerosis findings in the spinal cord

The spinal cord is commonly affected by acute demyelinating lesions, chronic tissue loss and atrophy in multiple sclerosis, and is a clinically eloquent site. Historically, however, more attention has been focussed on the analysis and contribution of brain lesions. In this review, we discuss some of the key findings from MRI analysis and histopathological examination of the spinal cord, and how they relate to the clinical characteristics of this common and disabling disease.
Research of Air Pollution Dispersion Visualization Based on GPU and Volume Rendering

To address the air pollution diffusing problem, a visualization algorithm based on fluid diffusion physical model and volume rendering is proposed to simulate the diffusion process epically for the urgent pollution accidents. The diffusion model is based on the simplified heat diffusion equation and the basic vortex constraint. The texture mapping based volume rendering method is adapted to handle the visualization algorithm. In addition, the render process adopts the GPU to implement the real-time visualization rendering.
A distributed power management policy for wireless ad hoc networks

This paper presents a power management scheme that maximizes energy saving in wireless ad hoc networks while still meeting the required quality of service (QoS). We assume that battery-powered devices can be remotely activated by a waking-up signal using a simple circuit based on RF tag technology. In this way, devices that are not currently active may enter a sleep state and power up only when they have pending traffic. Radio devices select different time-out values, so called sleep pattern, to enter various sleep states depending on their battery status and quality of service. The performances of the proposed policy are derived by simulation for a simple ad hoc network scenario. Results show the achieved tradeoff between power saving and traffic delay.
Putting evidence-based medicine into clinical practice: comparing anti-resorptive agents for the treatment of osteoporosis

SUMMARY Objective: To compare the effectiveness of anti-resorptive agents in reducing the risk of vertebral and non-vertebral fractures using data from published meta-analyses and the technique of adjusted indirect comparisons. Research design and methods: Pairs of agents were compared by adjusted indirect comparison of their effects relative to a common comparator (placebo) using meta-analyses published by The Osteoporosis Methodology Group and The Osteoporosis Research Advisory Group. Results: Adjusted indirect comparisons identified only one pair of agents that had significantly different effects on vertebral fracture incidence: alendronate was 34% more effective than calcitonin (Relative Risk: 0.66, 95% Confidence Interval: 0.48–0.90). Alendronate was significantly more effective than risedronate, calcitonin, estrogen, etidronate, and raloxifene (Relative Risks: 0.70 [0.49, 0.99], 0.64 [0.42, 0.98], 0.59 [0.41, 0.84], 0.52 [0.32, 0.82], and 0.56 [0.40, 0.78], respectively) in reducing the incidence of non-vertebral fractures. No other significant pairwise differences were observed. Conclusions: The results suggest that there are differences in anti-fracture efficacy among anti-resorptive agents, particularly for non-vertebral fractures. Direct head-to-head comparisons would be needed to confirm these findings but are unlikely to be conducted.
Regulation of brown adipose tissue development and white fat reduction by L-arginine

Purpose of reviewBrown adipose tissue (BAT), which is present in humans, plays an important role in oxidation of fatty acids and glucose. The purpose of this review is to highlight an important role for L-arginine in regulating BAT growth and development, thereby reducing obesity in mammals. Recent findingsDietary supplementation with L-arginine reduces white adipose tissue in genetically or diet-induced obese rats, obese pregnant sheep, and obese humans with type II diabetes. L-arginine treatment enhances BAT growth in both fetuses and postnatal animals. At molecular and cellular levels, L-arginine stimulates expression of peroxisome proliferator-activated receptor-&ggr; coactivator 1 (the master regulator of mitochondrial biogenesis), nitric oxide synthase, heme oxygenase, and adenosine monophosphate-activated protein kinase. At the whole body level, L-arginine increases blood flow to insulin-sensitive tissues, adipose tissue lipolysis, and the catabolism of glucose and fatty acids, but inhibits fatty acid synthesis and ameliorates oxidative stress, thereby improving metabolic profile. SummaryL-arginine increases mammalian BAT growth and development via mechanisms involving gene expression, nitric oxide signaling, and protein synthesis. This enhances the oxidation of energy substrates and, thus, reduces white fat accretion in the body. L-arginine holds great promise in preventing and treating obesity in humans.
A new deformable contour method

In this paper, a new deformable contour method is presented and tested. The method incorporates several advantages and avoids the disadvantages of both the level set and the non-deterministic deformable contour methods. It takes the level set approach as a core procedure with an enhanced velocity control using a region growing-like function, and the introduction of the non-deterministic approach to generate a set of candidate contours for evaluation by an energy function. The resulting procedure can handle blurred and/or opened contours, and noisy contours in images with a complex structure. The procedure is automatic and rather insensitive to the initial location, and has only one parameter /spl sigma/ to adjust. Local energy minima contours can easily be tuned to attend. Experimental results on human abdominal CT images, brain MRI images, and ultrasound pig heart images are favorably reported.
Reinforcing Brain Stimulation in Competition with Water Reward and Shock Avoidance

Employing response rate as the index of reinforcing strength in self-stimulation experiments is questioned. With water reward or shock avoidance placed in competition with brain stimulation, self-stimulation rate does not reflect relative reinforcement value. The results agree with preference tests which show that, for a given electrode site, stimulus intensity, not rate, is directly related to reward strength.
Finite element based bladder modeling for image-guided radiotherapy of bladder cancer.

PURPOSE A biomechanical model was constructed to give insight into pelvic organ motion as a result of bladder filling changes. METHODS The authors used finite element (FE) modeling to simulate bladder wall deformation caused by urine inflow. For ten volunteers, a series of MRI scans of the pelvic area was recorded at regular intervals of 10 min over 1 h. For the series of scans, the bladder volume gradually increased while the rectal volume was constant. The MR image with the bladder volume closest to 250 ml was selected as the reference in each volunteer. All pelvic structures were defined from the reference image including bladder wall, small bowel, prostate (male), uterus (female), rectum, pelvic bone, and the rest of the body. These structures were translated to FE meshes. Using appropriate material properties for all organs, deformations of these organs as a response to changing bladder pressure were computed. RESULTS The computation results showed realistic anisotropic deformation of the bladder wall: The bladder became more elongated in the cranial and anterior directions with increasing bladder volume. After fitting the volume of the computed bladder to the actual bladder volume on the test images, the computed bladder shape agreed well with the real bladder shape (overlap from 0.79 to 0.93). The average mean bladder wall prediction errors of all the volunteers were 0.31 cm average and 0.29 cm SD. CONCLUSIONS In conclusion, a FE based mechanical bladder model shows promise for the prediction of the short-term bladder shape change using only one pelvic scan and volume change of the bladder as input. The accuracy levels achieved with this method are likely mostly limited by inaccuracies in material properties and sliding tissue between organs, which has not been modeled. This model can potentially be used to improve image-guided radiotherapy for bladder cancer patients, i.e., by prediction short-term bladder deformation.