Miracle-dz/UniFAR-FTUs huggingface dataset:
Applied research of cloud computing on the sharing of educational information resource

The sharing and optimized configuration of educational information resources is very important of the realization of fair education. Cloud Computing is a new service computing model, which can integrate, manage and allocate the computing resources distributed on the Internet. In this paper, we discussed with the apply of cloud computing to the sharing of educational resources. The way and the benefit of the cloud computing applying are very carefully investigated. Supplementary strategies of applying cloud computing to solve remained problems are also proposed.
Wideband, circularly polarized, crossed, bowtie dipole antenna for navigation satellite system

In the article, a wideband, high-efficient, circular polarized(CP) antenna for COMPASS navigation satellite system is presented. It works at B1(1.561098GHz) and B1–2(1.589742GHz) frequency band and it can also be used for global positioning system(GPS) at L1(1.57542GHz) frequency band. The radiating elements are two crossed bowtie dipole with rectangular gaps in the middle of the bowtie elements. A vacant-quarter printed ring is used to realize circularly polarized(CP) by and the gaps in the middle of the bowtie elements are designed to optimize CP and to produce resonances. The bowtie structure is used to widen the bandwidth. An inverted, rotary table, cavity-backed reflector is used to control the radiation pattern and acquire highly gain. The proposed antenna is fed by a single electricity port.
A physical model to predict STT-MRAM performance degradation induced by TDDB

STT-MRAM is one of the most promising candidates as a next generation nonvolatile memory due to its high speed, low power consumption and superior scalability. While much insight on device physics of MTJ has been gained in recent years, understanding of the impact of TDDB on STT-MRAM performance has been rather limited. In particular, for continuously improving the performance of MTJ, scaling of oxide thickness and increasing voltage drop across MTJ (Vmϋ) are the two main solutions which can degrade the reliability margin. Therefore, an accurate TDDB reliability model with sound underlying physics is needed for evaluation of post-BD reliability of STT-MRAM. In this work, a physical model that captures the random nature of oxide BD time and post-BD current is proposed. Base on the simulation results (validated with experimental results), we suggest new design constraints for better reliability of STT-MRAM.
Performance Evaluation and Equivalent Model of Silicon Interconnects for Fully-Encapsulated RF MEMS Devices

This paper aims to demonstrate the utility of silicon interconnects for radio-frequency (RF) microelectromechanical system (MEMS) devices that are packaged using a wafer-scale encapsulation process. Design and fabrication steps for the packaged interconnects are described. Measurement results show that encapsulated devices can be operated at frequencies up to 6 GHz with less than 1 dB insertion loss from the through-package silicon interconnects. This paper also describes a simple and accurate lumped-element model for simulating the performance of packaged silicon interconnects. The model is verified with S-parameter measurements from 50 MHz to 6 GHz. The modeling method and extracted values are intended to aid in the design and simulation of RF MEMS devices packaged using this technology.
Identification of a Non-mitochondrial Phosphatidylserine Decarboxylase Activity (PSD2) in the Yeast Saccharomyces cerevisiae(*)

Phosphatidylserine decarboxylase (PSD1) plays a central role in the biosynthesis of aminophospholipids in both prokaryotes and eukaryotes by catalyzing the synthesis of phosphatidylethanolamine. Recent reports (Trotter, P. J., Pedretti, J., and Voelker, D. R.(1993) J. Biol. Chem.268, 21416-21424; Clancey, C. J., Chang, S. -C. , and Dowhan, W. (1993) J. Biol. Chem. 268, 24580-24590) described the cloning of a yeast structural gene for this enzyme (PSD1) and the creation of the null allele. Based on the phenotype of strains containing a null allele for PSD1 (psd1-Δ1::TRP1) it was hypothesized that yeast have a second phosphatidylserine decarboxylase. The present studies demonstrate the presence of a second enzyme activity (denoted PSD2) which, depending on the method of evaluation, accounts for 4-12% of the total cellular phosphatidylserine decarboxylase activity found in wild type. Recessive mutations resulting in loss of this enzyme activity (denoted psd2) in cells containing the psd1-Δ1::TRP1 null allele also result in ethanolamine auxotrophy. When incubated with [3H]serine these double mutants accumulate label in phosphatidylserine, while very little (<5%) is converted to phosphatidylethanolamine. In addition, these mutants have a 70% decrease in the amount of total phosphatidylethanolamine even when grown in the presence of exogenous ethanolamine. Strains containing psd1 or psd2 mutations were utilized for the subcellular localization of the PSD2 enzyme activity. Unlike the PSD1 activity, the PSD2 enzyme activity does not localize to the mitochondria, but to a low density subcellular compartment with fractionation properties similar to both vacuoles and Golgi.
Crohn disease of the small bowel: comparison of CT enterography, MR enterography, and small-bowel follow-through as diagnostic techniques.

PURPOSE To prospectively compare the accuracy of computed tomographic (CT) and magnetic resonance (MR) enterography and small-bowel follow-through (SBFT) examination for detection of active small-bowel inflammation and extraenteric complications in patients with Crohn disease (CD). MATERIALS AND METHODS The institutional review board approved the study protocol; informed consent was obtained from all participants. Thirty-one consecutive patients who had CD or who were suspected of having CD underwent CT and MR enterography, SBFT, and ileocolonoscopy. Two independent readers reviewed CT and MR enterographic and SBFT images for presence of active terminal ileitis and extraenteric complications. Accuracy values of CT and MR enterography and SBFT for identification of active terminal ileitis were evaluated with the receiver operating characteristic method, with ileocolonoscopic findings as the reference standard. Sensitivity values of CT and MR enterography and SBFT for detection of extraenteric complications were compared by using the McNemar test, with results of imaging studies, surgery, and physical examination as reference standards. RESULTS The study population included 30 patients (17 men, 13 women; mean age, 29.0 years) with CD. Differences in areas under the receiver operating characteristic curves for CT enterography (0.900 and 0.894), MR enterography (0.933 and 0.950), and SBFT (0.883 and 0.928) for readers 1 and 2, respectively, in the detection of active terminal ileitis were not significant (P > .017). Sensitivity values for detection of extraenteric complications were significantly higher for CT and MR enterography (100% for both) than they were for SBFT (32% for reader 1 and 37% for reader 2) (P < .001). CONCLUSION Because MR enterography has a diagnostic effectiveness comparable to that of CT enterography, this technique has potential to be used as a radiation-free alternative for evaluation of patients with CD.
De las creencias de la comunidad educativa escolar sobre actividad física, a las políticas institucionales del centro educativo

Resumen: La originalidad de este articulo radica en contribuir a la comprension de las creencias sobre actividad fisica que tiene la comunidad educativa, sustentadas en enfoques curriculares academicistas y positivistas, que rigen las politicas de actividad fisica en el centro educativo y que orientan las acciones cotidianas en esta area. La investigacion de tipo cualitativa etnografica (caso de estudio), se realizo en una escuela publica urbana en Costa Rica. Se obtuvo hallazgos que interpretan las creencias sobre actividad fisica de los ninos y las ninas en la escuela y en la clase de educacion fisica y como estas afectan sus estilos de vida activos.
A quarter century of UNIX

No wonder you activities are, reading will be always needed. It is not only to fulfil the duties that you need to finish in deadline time. Reading will encourage your mind and thoughts. Of course, reading will greatly develop your experiences about everything. Reading quarter century of unix is also a way as one of the collective books that gives many advantages. The advantages are not only for you, but for the other peoples with those meaningful benefits.
Methods used for suicide vary between regions in the developing world

EDITOR—Eddleston et al point out that deliberate self harm and suicide are serious public health problems in developing countries.1 We agree with their suggestions aimed at reducing the mortality associated with organophosphorus and pesticide poisonings, but it is important to note the considerable variation in the methods used for suicide between regions in the developing world, and even greater variations between people attempting and completing suicide. In India self immolation and hanging …
Advances in Brief Molecular Cloning of CDK 7-. associated Human MAT 1 , a Cyclin-dependent Kinase activating Kinase ( CAK ) Assembly Factor '

Department of Biochemistry and Biophysics (A. Y. , Y. X.J and Curriculum in Molecular Biology and Genetics (M. A. N. , Y. XI. University of North Carolina at Chapel Hill. Chapel Hill. North Carolina 27599-3280; Division of Orthopaedic Surgery. Research institute of Childrens Hospital Los Angeles, Los Angeles, California 90027 (L W. , F. L H. ]; Department of Molecular Pharmacology and Toxicology, University of Southern California School of Pharmacy, Los Angeles, California 90033 (F. L H. ]; and Cold Spring Harbor Laboratory, Cold Spring Harbor, New York 11724 (R. K. ]
A Theoretical Comparison of Data Masking Techniques for Numerical Microdata

In this study, we perform a comprehensive theoretical evaluation of masking techniques for numerical microdata. The objective of this comparison is to establish the extent to which existing techniques can satisfy disclosure risk, data utility, ease of implementation, and ease of use requirements. This evaluation allows data providers to select from these techniques to account for the demands of the data subjects and data users.
Liquid crystal thermography in the diagnosis of scaphoid fractures.

LCT consists of pliable latex sheets impregnated with cholestrol crystals which respond to different temperatures by emitting different wavelengths of light ranging from brown (cool) through yellow and green to blue (hot). These latex sheets form one wall of a sealed box with the opposite wall being made of perspex to allow the thermographic image to be viewed. The thermographic detectors are calibrated to react to different temperatures. Each one has a mean temperature and responds 2°C above and below this mean. There are eight detectors which respond to mean temperatures of 24, 26, 28, 29, 30, 31, 32 and 33°C. Each box is airtight and has a valve through which air can be pumped to make the pliable latex sheet assume a convex contour which can be moulded around the subject under study. The box is held in a frame with a polaroid camera and a flash unit, thus a permanent picture of the thermographic image can be obtained (Novamedix Ltd, Whitchurch, England).
Modeling of transient flow through a viscoelastic preparative chromatography packing

The common method for purification of macromolecular bioproducts is preparative packed‐bed chromatography using polymer‐based, compressible, viscoelastic resins. Because of a downstream processing bottleneck, the chromatography equipment is often operated at its hydrodynamic limit. In this case, the resins may exhibit a complex behavior which results in compression–relaxation hystereses. Up to now, no modeling approach of transient flow through a chromatography packing has been made considering the viscoelasticity of the resins. The aim of the present work was to develop a novel model and compare model calculations with experimental data of two agarose‐based resins. Fluid flow and bed permeability were modeled by Darcy's law and the Kozeny–Carman equation, respectively. Fluid flow was coupled to solid matrix stress via an axial force balance and a continuity equation of a deformable packing. Viscoelasticity was considered according to a Kelvin–Voigt material. The coupled equations were solved with a finite difference scheme using a deformable mesh. The model boundary conditions were preset transient pressure drop functions which resemble simulated load/elution/equilibration cycles. Calculations using a homogeneous model (assuming constant variables along the column height) gave a fair agreement with experimental data with regard to predicted flow rate, bed height, and compression–relaxation hysteresis for symmetric as well as asymmetric pressure drop functions. Calculations using an inhomogeneous model gave profiles of the bed porosity as a function of the bed height. In addition, the influence of medium wall support and intraparticle porosity was illustrated. The inhomogeneous model provides insights that so far are not easily experimentally accessible. © 2013 American Institute of Chemical Engineers Biotechnol. Prog. , 29:958–967, 2013
Experimental infection with Puumala virus, the etiologic agent of nephropathia epidemica, in bank voles (Clethrionomys glareolus)

Subclinical chronic infections characterized by transient viremia, prolonged virus shedding in oropharyngeal secretions and feces, and virus persistence in tissues (particularly lung) developed in laboratory-bred weanling bank voles (Clethrionomys glareolus) inoculated intramuscularly with Puumala virus (strain Hällnäs), the etiologic agent of nephropathia epidemica. Viral antigen, as evidence by granular fluorescence, was detected in the lungs, liver, spleen, pancreas, salivary glands, and small intestine. Infectious virus was found in the lungs from 14 to 270 days postinoculation, and feces and urine collected 35 to 130 days postinoculation were regularly and sporadically infectious, respectively. Horizontal transmission coincided with virus shedding in oropharyngeal secretions. Suckling voles also developed asymptomatic persistent infections after intracerebral inoculation, and histopathological changes were absent despite widespread infection. Our data resemble findings in Apodemus agrarius experimentally infected with Hantaan virus, the prototype virus of hemorrhagic fever with renal syndrome, suggesting that the mechanisms of maintenance and transmission of Puumala and Hantaan viruses are similar in their respective wild-rodent hosts.
A Bottle of Beer, a Glass of Wine, or a Shot of Whiskey? Can the Rate of Alcohol-Induced Harm Be Affected by Altering the Population's Beverage Choices?

This article summarizes and puts into context the findings from the five articles contained in this thematic issue. The question of interest has been the connection between different beverage types and alcohol-induced harm. The key question is whether policy makers can affect rates of harm by affecting beverage choice. In the discussion, four different potential pathways for such an effect are differentiated. The first is the direct effect of the beverage over and above the effect of the ethanol it contains. The review of results suggests that the size of this effect may be modest, and it is clearly overmatched by cultural factors relating to who chooses to drink which beverage and how. However, even more relevant than the direct effect may be the other three mechanisms, which potentially affect the amounts of alcohol drunk or allow the influencing of drinker groups of interest.
Octobot - A robot octopus points the way to soft robotics

The sun was sparkling on the Mediterranean sea on the afternoon when a graduate student from my lab tossed our prize robot into the water for the first time. I watched nervously as our electronic creation sank beneath the waves. But the bot didn't falter: When we gave it the command to swim, it filled its expandable mantle with water, then jetted out the fluid to shoot forward. When we ordered it to crawl, it stiffened its eight floppy arms in sequence to push itself along the sandy bottom and over scattered rocks. And when we instructed it to explore a tight space beneath the dock, the robot inserted its soft body into the narrow gap without difficulty.
Photoplethysmography for non-invasive in vivo measurement of bone hemodynamics

Developments in photoplethysmography (PPG) hardware make this device a promising tool for non-invasive deep-tissue hemodynamic measurements. The aim of this study was to validate the use of PPG as a tool for non-invasive bone hemodynamic measurements. A new PPG device capable of measuring bone hemodynamic responses was designed, tested and validated. Validation experiments included cold exposure, arterial occlusion, skin occlusion and nitroglycerin exposure. Cold exposure resulted in a decrease in skin perfusion (p = 0.011) and bone perfusion (p = 0.005); arterial occlusion also resulted in decreased skin perfusion (p < 0.001) and bone perfusion (p = 0.008), with arterial occlusion resulting in a greater decrease in perfusion than cold exposure. The independence of the skin and bone PPG signals was demonstrated by the ability to independently increase (p = 0.003) and decrease (p = 0.005) the skin signal without significantly affecting the bone signal. Our experiments build upon and expand previous PPG developments and validation studies. Our custom-made PPG hardware represents a state-of-the-art tool for non-invasive monitoring of deep tissues, and our data support the use of PPG as a valid tool for measuring bone hemodynamic responses in vivo.
l‐Phenylalanyl‐l‐Glutamate‐Stimulated, Chloride‐Dependent Glutamate Binding Represents Glutamate Sequestration Mediated by an Exchange System

Abstract: Stimulation of glutamate binding by the dipeptide l‐phenylalanyl‐l‐glutamate (Phe‐Glu) was inhibited by the peptidase inhibitor bestatin, suggesting that the stimulation was caused by glutamate liberated from the dipeptide and not by the dipeptide itself. It further suggests that this form of glutamate binding should be reinterpreted as glutamate sequestration and that stimulation of binding both by dipeptides and after preincubation with high concentrations of glutamate is likely to be due to counterflow accumulation. Several other criteria indicate that most of glutamate binding stimulated by chloride represents glutamate sequestration: Binding is reduced when the osmolarity of the incubation medium is increased, when membranes incubated with [3H]glutamate are lysed before filtration, and when membranes are made permeable by transient exposure to saponin. Moreover, dissociation of bound glutamate after a 100‐fold dilution of the incubation medium is accelerated about 50 times by the addition of glutamate to the dilution medium. This result would be anomalous if glutamate were bound to a receptor site; it suggests instead that glutamate is transported in and out of membrane vesicles by a transport system that preferentially mediates exchange between internal and external glutamate. Glutamate binding contains a component of glutamate sequestration even when measured in the absence of chloride. Sequestration is adequately abolished only after treating membranes with detergents; even extensive lysis, sonication, and freezing/thawing may be insufficient.
House dust mite asthma

Fifty asthmatics, candidates for hyposensitization with the house dust mite Dermatophagoides pteronyssinus (Dp), went through a series of allergy tests to evaluate the sensitivity of different organs to Dp. All patients were exposed to bronchial challenge with histamine and bronchial, nasal and conjunctival challenge with Dp, skin prick test (SPT) with Dp, analyses for Dp‐specific histamine release from blood cells (HR) and for anti‐Dp‐IgE in serum (RAST). Results from 40 patients reacting positively in all tests were further analysed. Sensitivity to Dp in the various organs did not parallel, but a fair correlation was demonstrated between pulmonary allergen sensitivity and HR (r = 0.65, P < 0.001), and between pulmonary sensitivity to allergen and to histamine (r = 0.47, P < 0.001). Combined variations in HR and in (unspecific) bronchial sensitivity to histamine explained 53% of the variation in bronchial sensitivity to the allergen. This parameter showed less correlation to RAST and SPT (r = 0.31 and r = 0.35, P > 0.05). The results indicate that bronchial allergen challenge cannot be replaced by similar challenge of other organs, since the sensitivity of the mucosa in different organs of the same patient seems unrelated. Diagnosis should therefore be based on challenge of the organ with dominating clinical importance. In our selected group of patients, however, it was indicated that a substitution of the result of bronchial allergen challenge by measurement of unspecific bronchial reactivity, together with information on the general allergen sensitivity on a cellular level, might be possible. The unpleasant symptoms of the immediate and late bronchial reactions to allergen challenge could thereby be avoided.
Persecution-Induced Reduction in Earning Capacity of Holocaust Victims: Influence of Psychiatric and Somatic Aspects

The incidence of mental and somatic sequelae is very high in the group of persons damaged by the Holocaust. Based on the sociomedical criteria prevailing in Germany, the assessment of persecution-induced reduction in earning capacity of Holocaust victims (vMdE) is mainly orientated towards direct Holocaust-induced somatic and mental sequelae but must also take into account the interaction of direct Holocaust-induced damage with subsequently acquired physical, mental, and psychosocial factors. The current medical evaluation is focused on the question whether persecution-induced symptoms are exacerbated by endogenous factors like mental or somatic diseases and/or exogenous factors like life events. In that case the grade of vMdE could be increased. Based on the synopsis of 56 Holocaust victims, we ascertained in this study that newly acquired somatic diseases and psychic morbidities contribute to an increase in persecution-induced mental complaints.
Ser hanseniano: sentimentos e vivências

A hanseníase, doença existente desde os mais remotos tempos, traz consigo marcas sociais e culturais indeléveis até os dias atuais. Os trabalhos sobre o tema em sua grande maioria, predominantemente quantitativos e normativos, pouco evidenciam ou aprofundam a questão humana da hanseníase, os sentimentos destes pacientes ou as experiências vivenciadas nesta trajetória. Surgiu, então, a proposta deste estudo que teve com objetivos evidenciar o significado da hanseníase na vida dos pacientes, as repercussões da doença sobre as relações intra e interpessoais e os sentimentos implicados neste processo. Esta pesquisa se realizou no período de dezembro de 1998 a dezembro de 1999, no Ambulatório de Dermatologia Sanitária, Porto Alegre – RS, e participaram do estudo onze doentes com idade entre 22 e 76 anos.As informações foram coletadas por meio de entrevista dialogada e semi-estruturada e, posteriormente, analisadas pelo método fenomenológico. Os resultados evidenciaram o desconhecimento da hanseníase, as dificuldades enfrentadas pelos doentes desde o diagnóstico até o término do tratamento, os diversos sentimentos vivenciados com a doença, a importância de cuidar e resgatar a auto-estima dos pacientes, o despreparo dos profissionais de saúde em manejar a hanseníase e acolher os doentes e a importância da educação para a saúde. A partir destes resultados são feitas algumas considerações aos serviços e profissionais que prestam atendimento aos doentes de hanseníase e às instituições de ensino responsáveis pela formação de futuros profissionais da saúde, objetivando o atendimento mais eficiente e humano ao hanseniano.