Miracle-dz/UniFAR-FTUs huggingface dataset:
Atención selectiva y sostenida de trabajadores en dos jornadas del día

Although the importance of the psychological process of attention and how it to contributes productive capacity and achieving efficient and effective results during the development of daily tasks has been recognized, it has not been sufficiently studied in workers of companies or organizations. This research sought to identify what selective and sustained attention is like in the workers to two different shifts in the day (morning and afternoon); Additional variables such as age, schooling and gender were investigated to see if they affected performance. We applied the computer program Vienna Test System sub-test cognitron form S1 to 184 university workers. Data was analyzed using a regression model and t-test for independent samples. The findings showed that selective attention is greater in the morning, while sustained attention is maintained throughout the day. As for the other variables analyzed, it was evidenced that age was the only predictor of performance, as workers of a younger age performed better. These results contribute to the planning of activities in the workplace and complements the studies in the area of the basic psychological processes.
Parasitic-aware GP-based many-objective sizing methodology for analog and RF integrated circuits

In this paper, an efficient parasitic-aware geometric programming and many-objective evolution algorithm based two — phase hybrid sizing methodology is presented. It considers circuit performance constraints and layout parasitics simultaneously within a concurrent process by using convex optimization in the first phase, and knowledge-driven heuristic refinement in the second phase. The proposed method has been used to optimize several analog and RF circuits in different CMOS technologies with high efficacy demonstrated.
UNIVERSAL MULTIFRACTAL PROPERTIES OF THE SMALL SCALE INTERMITTENCY IN ANISOTROPIC AND INHOMOGENEOUS TURBULENCE

The notion of self-similar energy cascades and multifractality has long since been connected with fully developed, homogeneous and isotropic turbulence. We introduce a number of amendments to the standard methods for analysing the multifractal properties of the energy dissipation field of a turbulent flow. We conjecture that the scaling assumption for the moments of the energy dissipation rate is valid within the transition range to dissipation introduced by Castaing et al.(Physica D (46), 177 (1990)). The multifractal spectral functions appear to be universal well within the error margins and exhibit some as yet undiscussed features. Furthermore, this universality is also present in the neither homogeneous nor isotropic flows in the wake very close to a cylinder or the off-centre region of a free jet.
Bayesian iterative-cascade framework for hierarchical phrase-based translation

The typical training of a hierarchical phrase-based machine translation involves a pipeline of multiple steps where mistakes in early steps of the pipeline are propagated without any scope for rectifying them. Additionally the alignments are trained independent of and without being informed of the end goal and hence are not optimized for translation. We introduce a novel Bayesian iterative-cascade framework for training Hiero-style model that learns the alignments together with the synchronous translation grammar in an iterative setting. Our framework addresses the above mentioned issues and provides an elegant and principled alternative to the existing training pipeline. Based on the validation experiments involving two language pairs, our proposed iterative-cascade framework shows consistent gains over the traditional training pipeline for hierarchical translation.
STUDIES ON THE ETIOLOGY OF TRACHOMA

A bacillus which corresponds closely with the description of B. granulosis Noguchi was isolated from 1 of 5 typical cases of trachoma in Chinese. Inoculation of suspensions of this bacillus into the eyelids of M. sinensis monkeys produced scarring and contraction of the tarsal cartilages with the development of a few conjunctival follicles in 2 out of 5 animals. The possible relations of the observed lesions with human trachoma have been discussed.
DIFFERENCES IN MULTIPLE CHOICE AND SHORT ANSWER QUESTIONS PERFORMANCE AMONG MEDICAL AND DENTAL TRAINEES AS REFLECTED IN THEIR ANATOMY COURSE

The aim of this study was to compare Medical and Dental students’ performance in multiple-choice questions (MCQs) and short answer questions (SAQs) in the pre-clinical Anatomy examinations. The study also seeks to determine the interaction between the students’ examination final grade in Anatomy course with the exam formats (MCQs versus SAQs) and level of study. The study is retrospective type in which the data were collected from examination records in the Department of Anatomy, Faculty of Basic Medical Sciences, College of Health Science, Bayero University Kano. A total of 551 students’ records were used, this population comprised ofsecond and third year Medical and Dental students for two academic sessions. The mood’s median test showed differences in the median scores across different level of the study, program and academic session. It was observed that more students had scores greater than the median in the SAQs scores. In MCQs scores despite higher number of students with scores greater than median, more students had scores greater than median in SAQs components of the examination Final examination scores correlate higher with essay scores compared to its relationship with MCQs score in year two. A statistically significant interaction among examination format and year of the study and grades was also observed. In conclusion, medical students’ performance in multiple-choice questions and short answer essay questions depends on the student’s year of the study. It was suggested that the examination format and students’ year of study may influence the final examination grade in Anatomy course.
Unstable Angina is a syndrome correlated to mixed Th17 and Th1 immune disorder

Unstable angina is common clinical manifestation of atherosclerosis. However, the detailed pathogenesis of unstable angina is still not known. Here, I propose that unstable angina is a mixed TH17 and TH1 immune disorder. By using microarray analysis, I find out that TH1 and TH17 related cytokine, cytokine receptor, chemokines, complement, immune-related transcription factors, anti-bacterial genes, Toll-like receptors, and heat shock proteins are all up-regulated in peripheral leukocytes of unstable angina. In addition, H-ATPase, glycolytic genes, platelet and RBC related genes are also up-regulated in peripheral leukocytes of during unstable angina. It also implies that atherosclerosis is a mixed TH17 and TH1 autoimmune disease. If we know the etiology of unstable angina as well as atherosclerosis better, we can have better methods to control and prevent this detrimental illness.
Inserting Ecological Detail into Economic Analysis : Agricultural Nutrient Loading of an Estuary Fishery

Linked general equilibrium economic and ecological models are connected through agricultural runoff and the fisheries. They are applied to a North Carolina estuary in which agricultural runoff alters phytoplankton densities and the resulting hypoxia leads to diminished fisheries. The effects of hypoxia on multiple species across space are analyzed and the joint economic and ecosystem wide response to a policy of reduced runoff is quantified. The approach provides an assessment of changes in ecological welfare (in terms of species populations) and economic welfare (in terms of equivalent variations) following reductions in runoff.
Drinking During the Week? Alcohol Use and Religion among College Students

Alcohol use among college students has been correlated with academic performance, major choice, and risky behaviors, such as impaired driving and high-risk sexual encounters. As college students matriculate, they learn to make decisions about who they are now, and who they will become in the future; decisions that include choices about religion. The study explored the differences in religious self-identification and alcohol use among students who identified themselves as unsure of their religious beliefs, those who were spiritual, and those who were religious; results found that students who self-identified as religious were less likely to drink alcohol within the past month.
Wiener Chaos Versus Stochastic Collocation Methods for Linear Advection-Diffusion-Reaction Equations with Multiplicative White Noise

We compare Wiener chaos and stochastic collocation methods for linear advection-reaction-diffusion equations with multiplicative white noise. Both methods are constructed based on a recursive multistage algorithm for long-time integration. We derive error estimates for both methods and compare their numerical performance. Numerical results confirm that the recursive multistage stochastic collocation method is of order $\Delta$ (time step size) in the second-order moments while the recursive multistage Wiener chaos method is of order $\Delta^{\mathsf{N}}+\Delta^2$ ($\mathsf{N}$ is the order of Wiener chaos) for advection-diffusion-reaction equations with commutative noises, in agreement with the theoretical error estimates. However, for noncommutative noises, both methods are of order one in the second-order moments.
The Isolation and Characterization of Streptococcus Mutans Serotype a from Dental Plaque of Monkeys (macaca Fascicularis)

A new serotype (h) of Streptococcus mutans was isolated from the dental plaque of monkeys (Macaca fascicularis). Serotype h strains fermented mannitol and melibiose but not sorbitol or raffinose, failed to hydrolyse aesculin and arginine, did not produce hydrogen peroxide and were unable to grow in the presence of bacitracin at 2 units ml-l. Sodium dodecyl sulphate-polyacrylamide gel electrophoresis of whole-cell proteins showed serotype h strains to be closely related to strains of genetic group I11 (i.e. serotypes d and g). The serotype-specific antigen of serotype h contained glucose and galactose but was antigenically distinct from the polysaccharide antigens of serotypes a, d and g. Serotype h strains preferentially colonized developmental grooves of teeth and the proportion of serotype h in the plaque flora was greater in monkeys fed a sucrose-rich diet than in monkeys fed a starch-based diet. A serotype h strain was cariogenic for germ-free rats fed a high-sucrose diet, and serotype h strains appear to be implicated in the caries process in monkeys. Streptococcus mutans preferentially colonizes the pits and fissures of the occlusal surface of teeth (Ikeda & Sandham, 197 1) and it has been implicated as a major aetiological agent of The species has been subdivided by a variety of taxonomic criteria. Seven serotypes have been described: five (a, b, c, d and e) by Bratthall (1970) and a further two (f and g) by Perch et al. (1974). On the basis of DNA guanine plus cytosine contents and inter-strain DNA homologies, Coykendall (1 974) subdivided the species into four genetic groups. A similar grouping was obtained by Russell (1 976), based on sodium dodecyl sulphate-polyacrylamide gel electrophoresis of whole cell proteins. Strains of S. mutans have also been classified according to their responses to biochemical tests (Perch et al., 1974; Shklair & Keene, 1974). The latter authors defined five biotypes which generally conformed to the serotypes defined by Bratthall(l970). Streptococcus mutans can be isolated infrequently from the dental plaque of monkeys fed starch-based diets but is regularly isolated from monkeys fed sucrose-supplemented diets (Cornick & Bowen, 1972; Colman & Hayday, 1980). We have been investigating changes in the streptococcal population in the plaque of monkeys fed sucrose-supplemented diets. These investigations have led to the isolation and characterization of streptococci unlike those previously isolated from the human oral cavity. This paper presents a description of one particular group of these streptococcal strains that we have …
Branes from Unstable Systems of Branes 1

We discuss various aspects of the description of branes as topo-logical solitons in unstable brane systems of higher dimensions. We first describe a classification of all the possible realisations of branes of M and type II theories as topological solitons of a brane-antibrane system. We then present a description of type IIB NS-NS p-branes in terms of topological solitons in systems of spacetime-filling NS9, anti-NS9 pairs and discuss the implications of these constructions in the description of BPS and non-BPS states in the strongly coupled Heterotic SO(32) theory. We finally present briefly the construction of a conjectured spacetime-filling non-BPS M10-brane, starting point for a brane descent construction of the branes of M-theory.
Model-driven search-based loop fusion optimization for handwritten code

The Tensor Contraction Engine (TCE) is a compiler that translates high-level, mathematical tensor contraction expressions into efficient, parallel Fortran code. A pair of optimizations in the TCE, the fusion and tiling optimizations, have proven successful for minimizing disk-to-memory traffic for dense tensor computations. While other optimizations are specific to tensor contraction expressions, these two model-driven search-based optimization algorithms could also be useful for optimizing handwritten dense array computations to minimize disk to memory traffic. In this thesis, we show how to apply the loop fusion algorithm to handwritten code in a procedural language. While in the TCE the loop fusion algorithm operated on high-level expression trees, in a standard compiler it needs to operate on abstract syntax trees. For simplicity, we use the fusion algorithm only for memory minimization instead of for minimizing disk-to-memory traffic. Also, we limit ourselves to handwritten, dense array computations in which loop bounds expressions are constant, subscript expressions are simple loop variables, and there are no common subexpressions. After type-checking, we canonicalize the abstract syntax tree to move side effects and loopinvariant code out of larger expressions. Using dataflow analysis, we then compute reaching definitions and add use-def chains to the abstract syntax tree. After undoing any partial loop fusion, a generalized loop fusion algorithm traverses the abstract syntax tree together with the use-def chains. Finally, the abstract syntax tree is rewritten to reflect the loop structure found by the loop fusion algorithm. We outline how the constraints on loop bounds expressions and array index expressions could be removed in the future using an algebraic cost model and an analysis of the iteration space using a polyhedral model.
Anatomo-functional correlates of visual and auditory development : insights on the ontogeny of face and speech processing lateralization

Several cognitive functions such as face and speech processing are lateralized in the adult human brain. The ontogeny of these functional asymmetries is yet poorly understood. We aimed to evaluate the neural substrates of face and speech processing, nested in the visual and auditory networks using non-invasive neuroimaging techniques in infants. First, we studied how the functional and structural characteristics of these two brain systems change over the first postnatal semester. With EEG, we showed age-related decreases in the latency of brain responses and demonstrated that the speed of early visual responses is related to the maturation of underlying white matter tracts conducting them, as assessed with diffusion MRI. For the auditory system, our results suggested that the speed of responses may rely on maturation of more pathways and cortical regions. In parallel, we studied face processing lateralization using a discrimination paradigm of faces presented in each hemifield and observed that only the right hemisphere was able to discriminate between faces. Further evidence also suggested a transfer of face-relevant information across hemispheres. To study speech processing lateralization, we used a paradigm with monaural presentation of speech stimuli. A comparison between typical infants and infants with callosal agenesis, suggested an asymmetric transfer of auditory information across hemispheres, facilitated toward the left hemisphere, that might contribute to the lateralization of language early on. This thesis highlights the potential of neuroimaging techniques for the study of brain’s structural and functional development and of hemispheric asymmetries early on.
Multiple Antenna Techniques in WiMAX Systems

Multiple antenna systems can offer significant improvements in system performance due to their ability to exploit multipath signal propagation and take advantage of its random nature in order to achieve diversity or spatial multiplexing gain. As such, they are very suitable for implementation in WiMAX (Worldwide Interoperability for Microwave Access) systems to improve its performance in harsh urban and indoor environments. WiMAX physical layer is based on Orthogonal Frequency Division Multiplexing (OFDM), which is very robust to multipath propagation and enables straightforward usage of MIMO techniques. In this paper multiple antenna techniques and their use in Fixed and Mobile WiMAX systems are discussed. We present test results, collected with field measurements during a Fixed WiMAX system deployment, and describe results obtained by applying a channel simulator whose parameters are tuned according to field measurement data. A performance comparison between STC (Space-Time Coding) and non-STC operation mode is analyzed for different coding and modulation schemes specified in the standard.
ASAS / ADSA Physiology : Nutritional Regulation of Ovarian Function / Ovarian Biology 132 Novel effects of nutrition on reproduction in lactating dairy cows

A number of reproductive parameters are altered in lactating dairy cows including: twinning rate, expression of estrus, conception rate, pregnancy loss, and incidence of anovulation. We hypothesized that the high feed consumption associated with lactation has fundamentally altered reproductive physiology due to increased metabolism of steroids. We evaluated liver blood flow and steroid metabolism under different physiological conditions using continuous infusion of bromosulfothalein ( 90% metabolized by one pass through liver) and/or estradiol and progesterone. In lactating or non-lactating cows, acute feeding produced an increase in liver blood flow of 20-30% that was maximal by 2 h after feeding. There was a corresponding decrease of 30% in circulating estradiol and progesterone concentrations following acute feeding of cows continuously infused with steroids. The baseline liver blood flow was much greater in lactating ( 1600 l/h) as compared to non-lactating ( 800 l/h) cows. Similarly, estradiol and progesterone metabolism was much greater in lactating as compared to non-lactating cows. Analysis of normal estrous cycles showed striking differences in lactating cows vs. heifers that are consistent with high steroid metabolism. Peak serum estradiol near estrus was lower in single-ovulating lactating cows (7.1.5 pg/ml) than heifers (9.4.6) in spite of larger preovulatory follicle diameter in cows (17.4.5 mm) than heifers (14.8.2). Similarly, circulating progesterone concentrations were lower for cows than heifers from d 5 to 14 of the estrous cycle (on day 14: 4.1.3 vs. 6.1.4 ng/ml); whereas, luteal volume was greater for cows than heifers (on day 14: 8272932 vs. 5415276 mm3). There were also differences in double ovulation rate (cows-25.0%; heifers-1.8%) and embryo quality on day 5 after normal ovulation (n = 27-28 per group each flushed 3 different times). The percentage of degenerated embryos (Grade 5) was greater (p<0.05) in lactating cows (61.9%) vs. heifers (6.3%) during summer or comparing lactating (41.7%) vs. non-lactating cows (17.6%) during winter. Thus, changes in reproductive physiology may be a consequence of the high feed consumption, high liver blood flow and resulting increase in steroid metabolism associated with high milk production.
What works at work : overview and assessment

This article discusses why it is difficult to measure the effects of management practices on organizational performance. In spite of these difficulties, a collage of evidence suggests that innovative workplace practices can increase performance, primarily through the use of systems of related practices that enhance worker participation, make work design less rigid, and decentralize managerial tasks. A majority of U.S. businesses have adopted some innovative work practices. However, only a small percentage of businesses have adopted a full system of innovative practices. We outline several constraints on the diffusion of new work practices, and suggest directions for future research.
Probabilistic Evaluation of Expressive Queries on Bounded-Treewidth Instances

Though data uncertainty naturally appears in many real-life situations, traditional database theory and systems tend to assume that the data is reliable and complete. The reason is that of complexity and performance: on arbitrary relational database instances annotated with probabilities, performing exact probabilistic query evaluation is hard. However, a criterion on the shape of the database has been shown in recent work to be sufficient and in some sense necessary to the tractability of this task. Databases whose treewidth is bounded by a constant k are exactly those that can be tractably queried, with respect to quantitative uncertainty estimation. But this is a data complexity result, that does not take into account the cost in terms of the query or of k -- in many cases, this cost is too high for real-world applications. The aim of our PhD research is to study in which circumstances the overall complexity of probabilistic query evaluation can become tractable, aiming at both theoretical and practical results.
The impact of using real ear measures to calculate prescriptive targets on hearing aid follow-up visits

To fit hearing aids, estimated values are used to convert dB HL to dB SPL. This does not account for variance in ear canal shape and volume. Measured RECDs can change the NAL-NL1 targets. The purpose of this study was to evaluate if patients that deviate widely from the estimated RECDs are prone to additional follow-up visits.
Applying UML Use Case Diagrams to Agents Representation

This paper is the first step of an exploration of the possibilities offered by the application of UML to agent-based software. Starting from UML definitions of use cases and actors we discuss their correspondence to agents and external entities of the environment. An example is also presented that starts form a classical well–known case of study.
Murnaghan-Nakayama Rules for the Characters of the Wenzl (k,l)-Representations of the Iwahori-Hecke Algebras of type A

This paper has been withdrawn by the author because he was informed of the following paper: Cummins C. and King R. C. , An algorithm for calculating characters of Hecke algebras Hn (q) of tyoe An-1 when q is a root of unity, Comm. Algebra 21 (1993), no.12 4425-4437 by its first author. The author's main result seems to be included in their result.