Miracle-dz/UniFAR-FTUs huggingface dataset:
Power-Delay Tradeoff With Predictive Scheduling in Integrated Cellular and Wi-Fi Networks

The explosive growth of global mobile traffic has led to rapid growth in the energy consumption in communication networks. In this paper, we focus on the energy-aware design of the network selection, subchannel, and power allocation in cellular and Wi-Fi networks, while taking into account the traffic delay of mobile users. Based on the two-timescale Lyapunov optimization technique, we first design an online Energy-Aware Network Selection and Resource Allocation (ENSRA) algorithm, which yields a power consumption within O(1/V)bound of the optimal value, and guarantees an O(V) traffic delay for any positive control parameter V. Motivated by the recent advancement in the accurate estimation and prediction of user mobility, channel conditions, and traffic demands, we further develop a novel predictive Lyapunov optimization technique to utilize the predictive information, and propose a Predictive Energy-Aware Network Selection and Resource Allocation (P-ENSRA) algorithm. We characterize the performance bounds of P-ENSRA in terms of the power-delay tradeoff theoretically. To reduce the computational complexity, we finally propose a Greedy Predictive Energy-Aware Network Selection and Resource Allocation (GP-ENSRA) algorithm, where the operator solves the problem in P-ENSRA approximately and iteratively. Numerical results show that GP-ENSRA significantly improves the power-delay performance over ENSRA in the large delay regime. For a wide range of system parameters, GP-ENSRA reduces the traffic delay over ENSRA by 20-30% under the same power consumption.
De la creatividad

Tal la síntesis con la que se abre el primer capítulo de la igualmente primera edición en lengua castellana de esta obra publicada dos años atrás en inglés por Harper Collins de Nueva York. Pienso que a Csikszentmihalyi no le desagradaría conocer que algunos miembros de su ámbito consideramos su libro como un verdadero regalo, un apreciado ‘meme’ para cualquier lector y especialmente para quienes compartimos su preocupación porque “las escuelas no consiguen enseñar lo emocionantes, lo embebecedoramente bonitas que pueden llegar a ser la ciencia o las matemáticas. ” (Csikszentmihalyi, 1998 :154).
Specificity of exercise on enhancing cognitive abilities : Argentine Tango and walking

The objective of this feasibility study was to determine for the elderly atrisk for falls the eftects of a 10-week program in Argentine Tango dancing or Walking on cognition. Thirty healthy community dwelling seniors (60+) were recruited to take part in the study. They were evaluated at baseline, post-intervention and follow-up on divided attention (Walking-WhileTalking) and working memory tasks. It was found that Tango dancing significantly improved divided attention capabilities while the Walk program significantly improved working memory. These findings need to be replicated with a larger number of subjects. ABRÉGÉ L'objectif de cette étude de faisabilité était de déterminer les effets d'un programme de 10 semaines de Tango argentin ou de marche sur les fonctions cognitives de personnes âgées à risque de chutes. Trente personnes âgées en bonne santé et de la communauté étaient recrutées pour assister à l'étude. Ils étaient évalués au niveau de référence, postintervention et suivi sur des tâches d'attention partagée (parler en même temps que marcher) et de la mémoire de travail. L'étude a trouvé que la danse Tango a significativement amélioré les capacités d'attention partagée alors que le programme de marche a significativement amélioré la mémoire de travail. Ces résultats doivent être répliqués en utilisant un plus grand nombre de participants.
Molecular subtyping of feline immunodeficiency virus from cats in Melbourne.

OBJECTIVE To determine the subtypes of feline immunodeficiency virus (FIV) present in the domestic cat population in Melbourne. METHODS Blood samples were collected from 42 cats that had serum antibodies against FIV. DNA was extracted and subjected to polymerase chain reaction (PCR) to amplify variable regions of the envelope (env) and group specific antigen (gag) genes of FIV. PCR products were directly sequenced or sequenced after cloning when direct sequencing yielded ambiguous results. Phylogenetic analysis was performed and comparisons made with representative sequences of different subtypes. RESULTS The variable region of the env gene was successfully amplified by PCR from 41 of the 42 cats. All 41 were found to cluster with subtype A env sequences. The variable region of the gag gene was successfully amplified by PCR from all 42 cats. Forty-one were found to cluster with subtype A gag genes and one was found to cluster with subtype B sequences, suggesting that it may be derived from a recombinant env A/gag B virus. CONCLUSIONS Subtype A is the predominant FIV type in Melbourne, although a subtype A/B recombinant was identified in the population of FIV positive cats. These results of env gene analysis were similar to those in a previous Australian study, suggesting that subtype A predominates in Australia. The results of the gag gene analysis show the importance of analysing multiple areas of the FIV genome when assigning FIV subtypes. Comparison with other major urban centres may provide useful information about the phylogenic diversity of FIV in Australia.
Reliability of Three-dimensional Fluoroscopy For Detecting Pedicle Screw Violations in the Thoracic and Lumbar Spine

OBJECTIVE:Thoracic and lumbar pedicle screws have become popular because of their biomechanical superiority over other methods of spinal fixation. However, the safety and efficacy of transpedicular screws depend on their proper placement. Recent advances in imaging have resulted in the ability to acquire three-dimensional (3-D) axial images of the spine during surgery, and this study was undertaken to assess the reliability of this technology to detect pedicle violations. METHODS:Pedicle screws were placed in six human cadaver spines from T1 to S1 using standard techniques. Intentional pedicle violations were created in 74 of 216 pedicles, and violations were graded on a four-point scale (range, 0–3). Radiographic images were then obtained using a conventional spiral computed tomographic scanner and the Siremobil Iso-C 3D (Siemens Medical Solutions, Erlangen, Germany) 3-D fluoroscopy unit. An independent neuroradiologist then graded pedicle violations as ascertained by the two imaging modalities. RESULTS:Using direct inspection of the pedicles as the “gold standard,” the overall sensitivity and specificity for detecting pedicle violations were 0.716 and 0.789, respectively, with 3-D fluoroscopy. The overall sensitivity and specificity for detecting pedicle violations were 0.608 and 0.937, respectively, with conventional computed tomography. All Grade 2 pedicle violations were detected in the thoracic spine by both modalities, and all Grade 3 violations were detected by both modalities. CONCLUSION:Axial images obtained with 3-D fluoroscopy demonstrate a higher sensitivity but lower specificity than conventional computed tomographic scanning for assessing pedicle violations. By providing real-time intraoperative imaging, 3-D fluoroscopy may enhance the safety of thoracic transpedicular instrumentation.
Antibiotic resistance and plasmid profile of Aeromonas hydrophila isolates from cultured fish, Telapia (Telapia mossambica)

Strains of Aeromonas hydrophila isolates from skin lesions of the common freshwater fish, Telapia mossambica, were screened for the presence of plasmid DNA by agarose gel electrophoresis and tested for susceptibility to 10 antimicrobial agents. Of the 21 fish isolates examined, all were resistant to ampicillin and sensitive to gentamycin. Most isolates were resistant to streptomycin (57%), tetracycline (48%) and erythromycin (43%). While seven of 21 isolates harboured plasmids, with sizes ranging from 3 to 63·4 kilobase pair (kb), it was only possible to associate the presence of a plasmid with antibiotic resistance (ampicillin and tetracycline) in strain AH11. Both the plasmid and the associated antimicrobial resistance could be transferred to an Escherichia coli recipient by single‐step conjugation at a frequency of 4·3×10−3 transconjugants per donor cell.
Salmonella pathogenesis reveals that BMP signaling regulates blood cell homeostasis and immune responses in Drosophila

Intercellular signaling by bone morphogenetic proteins (BMPs) regulates developmental decisions in virtually all animals. Here, we report that Decapentaplegic (Dpp; a Drosophila BMP family member) plays a role in blood cell homeostasis and immune responses by regulating a transcription factor cascade. The cascade begins with Dpp repression of Zfh1, continues with Zfh1 activation of Serpent (Srp; a GATA factor), and terminates with Srp activation of U-shaped (Ush) in hematopoietic cells. Hyperactivation of Zfh1, Srp, and Ush in dpp mutants leads to hyperplasia of plasmatocytes. Salmonella challenge revealed that in dpp mutants the misregulation of this cascade also prevents the generation of lamellocytes. These findings support the hypothesis that Ush participates in a switch between plasmatocyte and lamellocyte fate in a common precursor and further suggests a mechanism for how all blood cell types can arise from a single progenitor. These results also demonstrate that combining Drosophila and Salmonella genetics can provide novel opportunities for advancing our knowledge of hematopoiesis and innate immunity.
Improving FPGA Design Robustness with Partial TMR

This paper describes an efficient approach of applying mitigation to an FPGA design to protect against single event upsets (SEUs). This approach applies mitigation selectively to FPGA circuit structures depending on their importance within the design. Higher priority is given to structures causing "persistent" errors within the design. For certain applications, applying selective mitigation to the persistent components can yield higher returns in reliability per unit cost than full mitigation. A software tool is also introduced which automatically classifies circuit structures based on this concept and applies triple modular redundancy (TMR) selectively based on the classification of the circuit structure
New Media Analysis: The Effects of Peer Influence and Personality Characteristics through the Stages of Trial, Adoption, and Continued Use of Video Sharing Websites

Abstract : New Media technologies have evolved at a rapid pace and have changed the way people communicate in the digital world. These changes are apparent in practically every type of application, including business, leisure, and the way people socially interact. The primary goal of this research was to contribute to the current breadth of knowledge and understanding regarding how, why, and under what conditions people interact with New Media technologies. In order to achieve this objective, this research provides an understanding of how peer influence and individual personality characteristics interact across time through the stages of New Media trial, adoption, and continued use of video sharing websites. The research methodology involved the collection of quantitative data from 63 university students. Three instruments were used to collect data: self-reported screener survey, semi-structured interview with quantitative items, and a personality survey. A conditional growth model was used to test six hypotheses proposed by this study. The results of these hypotheses revealed that peer influence is in fact moderated by personality characteristics across time through the stages of New Media trial, adoption, and continued use. This research provides a foundation in which to build upon and presents several opportunities for future research.
Factors involved in specific transcription by human RNA polymerase II: analysis by a rapid and quantitative in vitro assay.

We describe a new assay system that allows a rapid, direct, and quantitative detection of promoter-dependent in vitro transcription by RNA polymerase II. The template used is a hybrid plasmid containing the adenovirus major late promoter linked to a synthetic 400-base-pair DNA fragment that lacks cytidine residues on the transcribed strand--i.e., generates a transcript with no guanosine residues. In vitro transcriptions are carried out in the absence of GTP or, if the reactions contain GTP, in the presence of RNase T1 and the chain terminator 3'-0-methyl-GTP. Under these conditions the only RNAs that can accumulate, whether from a circular or linearized DNA template, are the 400-nucleotide RNase T1-resistant transcripts resulting from accurate initiation at the major late promoter. Thus, specific transcription can be directly monitored by conventional RNA quantitation methods. Using this fast assay, we show that three basic transcription factors, TFIIB, TFIID, and TFIIE, are absolutely required, in addition to the RNA polymerase II, for specific transcription initiation from the adenovirus major late promoter. Units of activity can be defined for each of these individual components. The applicability of this kind of assay to other systems is discussed.
Evolution strategy applied to global optimization of clusters in gene expression data of DNA microarrays

Cluster analysis is the most important method for analyzing large-scale gene expression patterns. The matrix representation of microarray data and its successive 'optimal' incisional hyperplanes that create top-down hierarchical tree are a useful platform for developing optimization algorithms to determine the 'optimal' clusters from a pairwise proximity matrix which represents completely connected and weighted graph. Evolution strategy is applied to determine the 'globally optimal' incisional hyperplanes to construct hierarchical tree structure and tested with Fisher's iris and Golub's leukemia data sets. The results were compared with those of bottom-up hierarchical clustering, K-means and SOMs (Self-Organizing Maps) algorithms with promising results.
Clinical Presentation of Klinefelter's Syndrome: Differences According to Age

The aim of the study was to establish the characteristics of presentation of 94 patients with Kinelfelter's syndrome (KS) referred to the endocrinologist at different ages. The diagnosis of KS was more frequent in the age group between 11 and 20 years (46.8%). Most of the patients (83.7%) showed the classic 47,XXY karyotype and 7.1% showed a 47,XXY/46,XY mosaicism. Half of the patients younger than 18 years presented mild neurodevelopmental disorders. The most frequent clinical findings were cryptorchidism in prepubertal patients, and small testes, cryptorchidism, and gynecomastia in pubertal patients. FSH, LH, AMH, and inhibin B levels were normal in prepubertal patients and became abnormal from midpuberty. Most adults were referred for small testes, infertility, and gynecomastia; 43.6% had sexual dysfunction. Testosterone levels were low in 45%. Mean stature was above the 50th percentile, and 62.5% had BMI ≥25.0 kg/m2. In conclusion, the diagnosis of Klinefelter syndrome seems to be made earlier nowadays probably because pediatricians are more aware that boys and adolescents with neuro-developmental disorders and cryptorchidism are at increased risk. The increasing use of prenatal diagnosis has also decreased the mean age at diagnosis and allowed to get insight into the evolution of previously undiagnosed cases, which probably represent the mildest forms. In adults average height and weight are slightly higher than those in the normal population. Bone mineral density is mildly affected, more at the spine than at the femoral neck level, in less than half of cases.
Lipid Profile, Lipid-lowering Medications, and Intracerebral Hemorrhage After tPA in Get With The Guidelines–Stroke

Background and Purpose— Symptomatic intracerebral hemorrhage (sICH) after tissue plasminogen activator for acute ischemic stroke is associated with poor outcome. There are conflicting data on sICH risk related to lipid levels and use of lipid-lowering medications. We evaluated whether there are associations between lipid levels, lipid-lowering medications, and sICH in Get With the Guidelines-Stroke. Methods— We identified acute ischemic stroke patients in the Get With the Guidelines-Stroke data set who were treated with IV tissue plasminogen activator between April 2003 and September 2009 and had complete data on lipid profiles and complications. Potential predictors of sICH were tested in univariate and multivariate analysis. Results— The analysis included 22 216 IV tissue plasminogen activator–treated acute ischemic stroke patients. Overall, 1104 (4.97%) experienced sICH (National Institute of Neurological Disorders and Stroke definition). In univariate analysis, patients with sICH were more often taking antihypertensive, lipid-lowering, and diabetes mellitus medications. There was no relationship between low density lipoprotein or total cholesterol and sICH in univariate analysis. However, the risk of sICH increased with higher high density lipoprotein, 6.1% in Q4 versus 4.7% in Q1, P=0.0013; and lower triglyceride levels, 5.9% in Q1 versus 4.2% in Q4, P<0.0001. In multivariable models, although the high density lipoprotein and triglyceride levels were modestly associated with sICH, low density lipoprotein and total cholesterol were not. Lipid-lowering medications were not independently associated with sICH. Conclusions— We found that low density lipoprotein and total cholesterol levels are not associated with risk of sICH after tissue plasminogen activator, although higher high density lipoprotein and lower triglyceride levels were modest risk factors. Lipid-lowering medications are not associated with risk of sICH.
A 1 . 2V , 1 . 6-mW , 107-dB Dynamic Range , and 99 . 5-dB SNDR Sigma-Delta Modulator for Digital Audio in 0 . 25-μ m CMOS

This paper presents a 1.2-V, 1.6-mW, and high-resolution sigma-delta modulator for digital audio. It uses a modified low-swing integrator outputs 4 order single-loop topology. Modulator coefficients are optimized for higher overload level factor and low power. A low-power two-stage class A/AB OTA with modified common mode feedback (CMFB) circuit in the first stage is used in the first integrator. To reduce the power consumption, a simple folded-cascode OTA is used in the last three integrators. Simulation results with OSR of 100 give SNDR and dynamic range (DR) of 99.5 dB and 107 dB including the circuit noise in the 25 kHz signal bandwidth, respectively. The circuit is implemented in a 0.25-μm standard CMOS technology.
Performance of Storage Management in an Implementation of SNOBOL4

Results of measuring the performance of the storage management subsystem in an implementation of SNOBOL4 are described. By instrumenting the storage management system, data concerning the size, lifetime, and use of storage blocks were collected. These data, like those obtained from conventional time measurement techniques, were used to locate program inefficiencies. In addition, these measurements uncovered some deficiencies in the storage management system, and provided the basis upon which to judge the heuristics used in the garbage collector.
Multiple dispatch in practice

Multiple dispatch uses the run time types of more than one argument to a method call to determine which method body to run. While several languages over the last 20 years have provided multiple dispatch, most object-oriented languages still support only single dispatch forcing programmers to implement multiple dispatch manually when required. This paper presents an empirical study of the use of multiple dispatch in practice, considering six languages that support multiple dispatch, and also investigating the potential for multiple dispatch in Java programs. We hope that this study will help programmers understand the uses and abuses of multiple dispatch; virtual machine implementors optimise multiple dispatch; and language designers to evaluate the choice of providing multiple dispatch in new programming languages.
Electrical Impedance Tomography Image Reconstruction Using Iterative Lavrentiev and L-Curve-Based Regularization Algorithm

Electrical impedance tomography (EIT) is a technique for determining the electrical conductivity and permittivity distribution inside a medium from measurements made on its surface. The impedance distribution reconstruction in EIT is a nonlinear inverse problem that requires the use of a regularization method. The generalized Tikhonov regularization methods are often used in solving inverse problems. However, for EIT image reconstruction, the generalized Tikhonov regularization methods may lose the boundary information due to its smoothing operation. In this paper, we propose an iterative Lavrentiev regularization and L-curve-based algorithm to reconstruct EIT images. The regularization parameter should be carefully chosen, but it is often heuristically selected in the conventional regularization-based reconstruction algorithms. So, an L-curve-based optimization algorithm is used for selecting the Lavrentiev regularization parameter. Numerical analysis and simulation results are performed to illustrate EIT image reconstruction. It is shown that choosing the appropriate regularization parameter plays an important role in reconstructing EIT images.
Construcción de una comunidad virtual. La red-sistema de formación en altos estudios de la red de comunicación compleja

En este articulo el autor describe y evalua la Red de Comunicacion Compleja. Esta Red se origina en el Programa Cultura de la Unviersidad de Colima (Mexico), credo en 1985 y que incorporaba desde el comienzo una concepcion de trabajo en red.
Wegener Granulomatosis Mimicking Inflammatory Bowel Disease in a Pediatric Patient

Wegener granulomatosis (WG) is an idiopathic granulomatous vasculitis, usually involving the respiratory tract and kidneys. WG presenting primarily with GI symptoms without extraintestinal manifestations is very rare, especially in children. We present a case of a teenager with WG who presented initially with clinical and histopathological findings indistinguishable from Crohn disease. The patient was a 14-year-old male, who presented with intermittent abdominal pain and weight loss, and had previously undergone an appendectomy. Physical examination was unremarkable. He had an elevated ESR, and microscopic hematuria with a normal complete blood count, was anti-Saccharomyces cerevisiae (ASCA) positive and perinuclear anti-neutrophilic cytoplasmic antibody (p-ANCA) negative. Esophago-gastro-duodenoscopy (EGD) and colonoscopy revealed gastric, duodenal and rectosigmoid erosions consistent with Crohn disease. Biopsy demonstrated focal active gastritis and focal active colitis. He was started on corticosteroids and a 5-ASA product with immediate resolution of his symptoms. Three weeks later he developed hemoptysis and exercise intolerance. CT scan showed multifocal alveolar and interstitial lung infiltrates. His prior appendectomy slides showed active necrotizing vasculitis with a transmural eosinophilic infiltrate consistent with WG. Renal biopsy demonstrated pauciimmune crescentic glomerulonephritis. His c-ANCA Protease 3 was significantly elevated. Oral cyclophosphamide was added with significant improvement. Although our patient’s initial symptoms, labs, biopsies and response to therapy were suggestive of Crohn disease, WG may mimic Crohn disease in patients without extraintestinal symptoms. Sinopulmonary or renal findings in a patient with suspected or known IBD should raise the possibility of WG. A positive CANCA PR3 and characteristic histological findings are diagnostic.