Miracle-dz/UniFAR-FTUs huggingface dataset:
Queueing Performance of IEEE 802.16 Random Access Protocol with Bulk Transmissions

In this paper, we consider the queueing performance of a subscriber station for IEEE802.16e random access protocol with bulk transmissions which is allowed with an ARQ protocol according to resource allocation scheme of a base station or adaptive modulation scheme. The queueing model of this system is modelled by using an M/G/1 type queue with set-up times and exhaustive batch service, which is solved by a generating function approach. Additionally, a piggyback probability in accordance with batch size is also obtained by analyzing a busy period.
Expression pattern of tumour necrosis factor receptors in subcutaneous and omental human adipose tissue: role of obesity and non‐insulin‐dependent diabetes mellitus

Tumour necrosis factor α (TNF) mRNA expression has been reported to be up‐regulated in adipose tissue from several rodent models of obesity and diabetes and from obese humans. This elevated expression has been assumed to be associated with the development of insulin resistance. However, the biological signal of TNF may be influenced by the expression of the two TNF receptors: the p60 TNF receptor, TNFR60, and the p80 TNF receptor, TNFR80.
METHODS FOR ADVANCED V / STOL CONFIGURATIONS

This paper features an assessment the capabilities of several advanced analysis tools for addressing key aerodynamic design issues faced by several prominent classes of VTOL vehicles currently under study. The assessment summarizes the strengths and limitations of a suite of modeling tools – a comprehensive rotorcraft model, a Cartesian grid Euler model, and an unstructured URANS analysis – in matching available data involving ducted propeller and proprotor/wing interactions representative of those faced by candidate compound, tiltrotor/tiltwing, and tailsitter configurations. The intent is to provide insight into the analysis challenges for vehicles involving such design features, the potential of these classes of tools for addressing them, and to motivate possible method upgrades. While the primary application for these methods likely will be for advanced vehicles of the type sought by the U.S. Army Future Vertical Lift program and/or the DARPA V/STOL XPlane and TERN programs, they could be applicable to a wide range of current and future advanced VTOL vehicles, including unmanned aircraft systems.
Hypertrophy of the Vasa Vasorum: Vascular Response to the Hungry Brain

Background: The vasa vasorum is a network of microvessels that supplies nutrients to the vessel wall itself. In pathologic conditions, the vasa vasorum can develop as potential collateral channels. Previous research documents revascularization through hypertrophy of the vasa vasorum after occlusion of the carotid artery. However, the relationship between the cerebral vascular demands and the hypertrophy of the vasa vasorum has not been well delineated by functional studies. Case Report: A 66-year-old man presented with left hemiparesis, dysarthria, and hemineglect. Magnetic resonance imaging revealed an acute infarction in the vascular territory of the right middle cerebral artery. Transfemoral cerebral angiography revealed occlusion of the right proximal internal carotid artery (ICA). Single-photon emission computed tomography study showed decreased vascular reserve in the right cerebral hemisphere. Right superficial temporal artery-middle cerebral artery bypass surgery was performed in an attempt to improve hemispheric perfusion. Follow-up angiography 1 year later showed revascularization of the distal ICA by the hypertrophied vasa vasorum. Follow-up single-photon emission computed tomography study showed persistent decreased vascular reserve. Conclusions: In cases of ICA occlusion, a 1-year or less hungry period for the cerebral vascular demand may activate potential collateral channels of the vasa vasorum. In addition to the metabolic demand of the occluded vessel wall itself, the vascular demands of the hypoperfused brain may be a trigger factor that leads to hypertrophy of the vasa vasorum as collateral channels.
Control of hybrid modular multilevel converter based HVDC system under DC short circuit faults

Hybrid modular multi-level converter (Hybrid MMC) topology, consisting of both half-bridge (HB) and full-bridge (FB) submodules, is suitable for HVDC application as it combines the advantages of both HB-MMC and FB-MMC. This paper focuses on the control aspects of hybrid MMC with the objective of limiting DC fault current. It is also controlled to exchange reactive power with the AC grid during DC fault. Further, a negative sequence current injection method is proposed to eliminate the mismatch between the average capacitor voltages of the three legs of MMC appearing during DC faults. The proposed methods are tested through simulations in PSCAD/EMTDC platform.
Alcohol Relapse and Change Needs a Broader View than Counting Drinks.

The investigation of alcohol use disorder relapse by Maisto and colleagues (2016, this volume) hopefully will end efforts to define and understand relapse as a single event consisting of some number of drinks. The authors’ finding that heavier drinking during treatment predicted heavier drinking at the end of treatment and 1 year later seems to reflect the often-used phrase that “the best predictor of future behavior is past behavior”. However, as noted in the article, the various quantity-based definitions of relapse were highly intercorrelated, had only a small to moderate (though statistically significant) relationship with future drinking, and had no important differences between them. The most general measure of relapse, “some drinking” during treatment, was not as good predictor of future drinking, suggesting that it may be more a measure of lapse than relapse or may simply reflect the non-linear process of becoming abstinent. As the authors conclude, these definitions of relapse are not powerful predictors and do not help us to understand what essentially is a dynamic process or series of events.
Optimizing the MIMO Channel Estimation for LTE-Advanced Uplink

To achieve good overall performance for wireless communication systems, it is essential to have good channel estimation performance. In this paper, based on a practical MIMO (Multiple-Input Multiple-Output) channel estimation algorithm for LTE-Advanced uplink, we discuss how to optimize its performance when different number of resource blocks (RB) are allocated. It is shown that after optimization, we can achieve better performance at both low and high SNR regions for both small and large number of allocated RBs. When the number of allocated RBs is large, it is shown that, with real channel information obtained by the optimized channel estimation, the frame error rate (FER) is only 1dB away from that with perfect channel information. When the number of allocated RBs is small and when QPSK or 16QAM is used, the performance is only 2 to 3dB away from that with perfect channel information.
INTESTINAL ABSORPTION OF HEXOSES IN THE DOG.

Solutions (310 mosmoles/liter) containing NaCl and 14–280 mm/liter hexose were perfused through jejunal or ileal fistulas in unanesthetized dogs. Each hexose was given alone and in combination with several concentrations of another hexose. Glucose, galactose, and fructose absorption rates increased in nearly hyperbolic fashion with increasing lumen concentrations whereas the absorption rate for sorbose was nearly directly proportional to its concentration in both jejunal and ileal loops. The perfusate hexose concentration for one-half maximal absorption rate differed between glucose, galactose, and fructose although all three sugars approached a similar maximum absorption rate. When pairs of hexoses were perfused, glucose and galactose seemed to compete for absorption whereas glucose and fructose, galactose and fructose, glucose and sorbose, and galactose and sorbose were absorbed nearly independently.
Investigation of MS normal-appearing brain using diffusion tensor MRI with clinical correlations

Objective: To quantitatively investigate water diffusion changes in normal-appearing white matter (NAWM) and gray matter in patients with MS, and to evaluate whether these changes are correlated with clinical disability and disease duration. Background: Diffusion tensor imaging provides quantitative information about the magnitude and directionality (anisotropy) of water diffusion in vivo and detects pathologic changes in MS brain tissue. Methods: Diffusion tensor imaging was performed in 39 patients with MS and in 21 age-matched control subjects. Quantitative indices, including fractional anisotropy, volume ratio, and mean diffusivity, were obtained in 30 regions of interest located in normal-appearing basal ganglia, cerebellar gray matter, and supratentorial and infratentorial NAWM. Results: Patients with MS showed significantly reduced anisotropy and a trend toward increased diffusivity in the infratentorial and supratentorial NAWM, and significantly increased anisotropy in the basal ganglia. In all patients with MS, both fractional anisotropy and mean diffusivity in the cerebral peduncles were inversely correlated with the Expanded Disability Status Scale and pyramidal functional scores. In patients with relapsing-remitting MS, there was a strong correlation between Expanded Disability Status Scale score and fractional anisotropy in both supratentorial and infratentorial NAWM. In primary and secondary progressive MS, disease duration correlated strongly with mean diffusivity in infratentorial NAWM and fractional anisotropy in the cerebral peduncles, respectively. Conclusion: The most striking finding of decreased fractional anisotropy in supratentorial and infratentorial NAWM and increased fractional anisotropy in basal ganglia may result from axonal degeneration due to fiber transection in remote focal lesions. Diffusion tensor imaging indices, in particular fractional anisotropy, appear sensitive to structural damage in NAWM that is associated with disability and progression in MS.
Immuno‐electron microscopic tracing of lactoferrin, a regulator of myelopoiesis, into a subpopulation of human peripheral blood monocytes

Summary. Lactoferrin (LF), an iron binding glycoprotein present in the specific granules of mature granulocytes, is capable of suppressing the production of granulocyte‐macrophage colony stimulatory factors (GM‐CSF) by monocytes and macrophages in vitro and rebound myelopoiesis in vivo. By an immuno‐electron microscopic technique (peroxidase‐antiperoxidase procedure) in combination with a three‐step fixation and detergent treatment of mononuclear blood cells pulsed with LF, intracellular localization of LF in a sub‐population of human monocytes with a well‐preserved subcellular morphology was demonstrated. LF was found in the monocytes after a 30 min pulse with concentrations of LF as low as 10−14m. Under the electron microscope, deposits of approximately 110 nm diameter appeared scattered in the area of the endoplasmic reticulum. Large numbers of smaller deposits (20–70 nm) were found in the euchromatin. The heterochromatin and other cytoplasmic organelles were free of LF. These results suggest that the euchromatin might be the functional site for LF inhibition of the production of GM‐CSF by a subpopulation of human monocytes.
Massive Dirac Fermions and Hofstadter Butterfly in a van der Waals Heterostructure

Graphene, Gapped and Butterflied The remarkable transport properties of graphene, such as the high electron mobility, make it a promising material for electronics. However, unlike semiconductors such as silicon, graphene's electronic structure lacks a band gap, and a transistor made out of graphene would not have an “off” state. Hunt et al. (p. 1427, published online 16 May; see the Perspective by Fuhrer) modulated the electronic properties of graphene by building a heterostructure consisting of a graphene flake resting on hexagonal boron nitride (hBN), which has the same honeycomb structure as graphene, but consists of alternating boron and nitrogen atoms instead of carbons. The natural mismatch between the graphene and hBN lattices led to a moire pattern with a large wavelength, causing the opening of a band gap, the formation of an elusive fractional quantum Hall state, and, at high magnetic fields, a fractal phenomenon in the electronic structure called the Hofstadter butterfly. A band gap is observed in a monolayer graphene–hexagonal boron nitride heterostructure. [Also see Perspective by Fuhrer] van der Waals heterostructures constitute a new class of artificial materials formed by stacking atomically thin planar crystals. We demonstrated band structure engineering in a van der Waals heterostructure composed of a monolayer graphene flake coupled to a rotationally aligned hexagonal boron nitride substrate. The spatially varying interlayer atomic registry results in both a local breaking of the carbon sublattice symmetry and a long-range moiré superlattice potential in the graphene. In our samples, this interplay between short- and long-wavelength effects resulted in a band structure described by isolated superlattice minibands and an unexpectedly large band gap at charge neutrality. This picture is confirmed by our observation of fractional quantum Hall states at ±53 filling and features associated with the Hofstadter butterfly at ultrahigh magnetic fields.
Performances dynamiques des transistors FLYMOSTM 65 Volts à canal N

Dans ce papier, un transistor FLYMOS™ 65V est caracterise en commutation pour la premiere fois dans le but d'etre compare a un transistor VDMOS conventionnel. Il s'avere que les mesures de capacites inter-electrodes et de gate charge des deux composants sont comparables. Une etude comparative, a l'aide de simulations 2D, de deux structures de meme tenue en tension nous a permis de conforter ces resultats, confirmant l'hypothese que l'insertion d'ilot flottants n'entrainait pas de phenomene parasite ou nouveau, dans le cas d'ilots faiblement dopes.
Geometric Feature Equalizers Based on Hybrid Genetic Algorithm

A nonlinear geometric feature equalizer adopting minimum bit error rate principle is proposed in this paper for the filtering of noise and interference whose frequency band overlaps with the desired signal in communications, and a novel hybrid genetic algorithm, namely hybrid genetic algorithm-stochastic gradient, is also proposed for training the equalization model. Considering that the noise and the interference have different stochastic character, the desired information is recovered by neural network based on minimum bit error rate principle. Simulation results show that when extended binary phase shifting keying signal is contaminated by the mix of white Gaussian noise and relatively strong interference signals of amplitude modulation and frequency modulation, the performance of matched filter or linear equalizer degenerates rapidly, but geometric feature equalizer provides very low bit error rate. Furthermore, performance of hybrid genetic algorithm is superior to that of stochastic gradient.
Effect of Clove and Holybasil Essential Oil on Sensory and Microbiological Quality of Fresh Chicken Sausages

Accepted: 22/11/2015 Abstract The present study was aimed to study the anti-micro b al effect of clove and holybasil essential oils and their effect on sensory attributes in fresh chicken sausages. Different levels of incorpo rati n viz., 0.125%, 0.25%, 0.5% and 1% were tried in product for both o ils. Essential oil incorporated products were analysed for total plate count and sensory attributes and optimum level of incorporation was i dentified. Total plate count was observed significantly lower (P<0.05) in essential oils incorporated products than control. 1% clove oil an d holy basil oil incorporated products showed approx 1.5 log reducti on in TPC when compared to control. However, sensory panellists ga ve satisfactory scores to lower level of essential oil products. Thus, bas ed on total plate count and sensory scores, 0.25% and 0.125% were adjudged as o ptimum level of incorporation in fresh chicken sausages. Proximate composition revealed no significant difference in moisture, fat, protein, a sh of treatment products and control, however pH was significantly decreased (P<0.05) in case of oil incorporated products.
Peer region determination based impulsive noise detection

A peer region determination (PRD) algorithm for impulsive noise detection in digital images is proposed; it removes random-valued impulsive noise while preserving very fine image details. This algorithm determines the peer region for each pixel adaptively by finding the variation of pixel values in a 5/spl times/5 filter window. If the number of member pixels in the peer region is very small, the pixel being processed is thought to be isolated from other pixels and thus considered as impulsive noise. In addition, this noise detector can be easily modified to perform feature selective filtering. Experimental results show that the proposed noise detection algorithm outperforms other existing non-linear filters and adaptive noise detection based filters in noise removal and image detail preservation. Finally, the concept of the PRD algorithm applied to other image processing applications is discussed.
Samarium-146 in the Early Solar System: Evidence from Neodymium in the Allende Meteorite

A carbon-chromite fraction from the Allende C3V chondrite shows strikingly large isotopic enrichments of neodymium-142 (0.47 percent) and neodymium- 143 (36 percent). Both apparently formed by alpha decay of samarium-146 and samarium-147 (half-lives 1.03 x 108 and 1.06 x 1011 years), but the isotopic enrichment was greatly magnified by recoil of residual nuclei into a carbon film surrounding the samarium-bearing grains. These data provide an improved estimate of the original abundance of extinct samarium-146 in the early solar system [146Sm/144Sm = (4.5 � 0.5) x 10-3], higher than predicted by some models of pprocess nucleosynthesis. It may be possible to use this isotopic pair as a chronometer of the early solar system.
Study of renal stones complications in 200 patients in Tabriz, Iran

Introduction: Urinary stones are the third most common disease of the urinary. Renal stones may lead to some preventable complications. This study was designed to investigation and prediction of these complications. Methods: In this cross-sectional study, 200 patients with kidney stones were enrolled. Kidney stone was confirmed and proven in all patients referred to Sina and Shaikh Al-Rais clinics. Their demographic characteristics like gender, age, stone number, stone type, renal failure and bio-chemistry data were evaluated. Results: Of 200 patients, 130 cases (65.0%) were male and 70 cases (35.0%) were female. The mean age of patients was 41.30 ± 16.06 years. Type of stone was (when evaluation was possible) was mixed (11.5%). However, the type of stone was not analyzed in 112 cases (56.0%). Among complications, recurrent infection was seen (16.0%), and staghorn stones were seen in 2.5% of patients. Dialysis was positive in 3 patients (1.5%). History of surgery was positive in 3 patients (1.5%). Extracorporeal shock wave lithotripsy (ESWL) history was positive in 8%. In evaluated patients, the mean level of calcium was 8.83 ± 0.27, phosphorus was 4.60 ± 0.33, parathyroid hormone (PTH) was 35.20 ± 14.22, uric acid was 4.98 ± 1.57, creatinine was 1.38 ± 1.02 and blood urea nitrogen level was 16.69 ± 11.54 mg/dl. Staghorn stones are significantly associated with progression to renal failure and subsequent complications such as hemodialysis (P = 0.001), surgery (P = 0.001). Recurrent infection was more frequent in calcium-containing stones (P = 0.001) and ESWL undergoing patients (P = 0.030). Stone numbers were more than 3 in hemodialyzed (HD) patients (P = 0.001). Uric acid stones were more seen in HD patients (P = 0.170). Conclusion: According to results hemodialysis and recurrent infections are seen in patients with renal stones, and they may be detected in earlier with close periodic follow-up.
Transthoracic needle biopsy of the lung: results of early discharge in 506 outpatients.

PURPOSE To determine the safety of early discharge (30 minutes) after transthoracic needle biopsy (TTNB) of the lung. MATERIALS AND METHODS In a prospective study of 506 consecutive outpatients who underwent TTNB of the lung, 440 patients underwent fine-needle aspiration biopsy (FNAB) only, and 66 underwent FNAB and core biopsy. Patients were discharged after 30-minute postbiopsy chest radiography if there was no pneumothorax. Patients were discharged after 60-minute chest radiography if they had a stable asymptomatic pneumothorax. These patients were followed up 1 day and/or 1 week after biopsy to identify delayed complications. Patients with a symptomatic or enlarging pneumothorax were treated with an 8-F pigtail catheter attached to a Heimlich valve, discharged, and followed up 24 hours later for chest tube removal. RESULTS The pneumothorax rate was 22.9% (116 patients). Eighty-one patients (16.0%) had an asymptomatic pneumothorax, and 33 (6.5%) had a pigtail catheter in place. Seven (1.4%) patients developed a symptomatic pneumothorax after discharge; two of them (0.4%) underwent large-bore chest tube insertion. The other five (1.0%) underwent delayed pigtail catheter insertion. There were no deaths or other major complications. CONCLUSION Early discharge after outpatient TTNB of the lung is associated with little morbidity and no mortality.
Novel mutation in the 5′ splice site of exon 4 of the TCOF1 gene in the patient with Treacher Collins syndrome

Treacher Collins syndrome (TCS) is caused by mutations in the TCOF1 gene. This gene encodes a serine/alanine‐rich protein called treacle. The structure of the entire TCOF1 gene was investigated in a patient with TCS. We detected a novel deletion (376delAAGGTGAGTGGGACTGCC) spanning 3 bp of exon 4 and 15 bp of the adjacent intronic sequence. This mutation causes premature termination of translation, resulting in a truncated protein devoid of nucleolar localization signal, and potential phosphorylation sites. Real‐time PCR analysis showed different melting temperatures of the amplified fragment containing normal allele and that harboring the 18 bp deletion, thus providing a rapid screening assay for this and other deletions of the TCOF1 gene. © 2003 Wiley‐Liss, Inc.