Miracle-dz/UniFAR-FTUs huggingface dataset:
A probabilistic model for the distribution of authorships

A theoretical model for the distribution of authorships is developed. This model, the shifted Waring distribution, and 15 other discrete probability models are tested for goodness-of-fit against 94 data sets collected from six fields (engineering sciences, medical sciences, physical sciences, mathematical sciences, social sciences, and humanities). The shifted inverse Gaussian-Poisson is found to provide the best fitting.
A 10-b, 500-MSample/s CMOS DAC in 0.6 mm2

A 10-b current steering CMOS digital-to-analog converter (DAC) is described, with optimized performance for frequency domain applications. For sampling frequencies up to 200 MSample/s, the spurious free dynamic range (SFDR) is better than 60 dB for signals from DC to Nyquist. For sampling frequencies up to 400 MSample/s, the SFDR is better than 55 dB for signals from DC to Nyquist. The measured differential nonlinearity and integral nonlinearity are 0.1 least significant bit (LSB) and 0.2 LSB, respectively. The circuit is fabricated in a 0.35-/spl mu/m, single-poly, four-metal, 3.3 V, standard digital CMOS process and occupies 0.6 mm/sup 2/. When operating at 500 MSample/s, it dissipates 125 mW from a 3.3 V power supply. This DAC is optimized for embedded applications with large amounts of digital circuitry.
Challenges in testing core-based system ICs

Advances in semiconductor design and manufacturing technology enable the design of complete systems on one IC. To develop these system ICs in a timely manner, traditional IC design in which everything is designed from scratch, is replaced by a design style based on embedding large reusable modules, the so-called cores. Effectively, the design of a core-based IC is partitioned over the core provider(s) and the system-chip integrator. The development of tests should follow the same partitioning. We describe the differences between traditional and core-based test development, and present an overview of current industrial approaches. We list the future challenges regarding standardization, tool development, and academic and industrial research.
Barreras de acceso a tratamiento de la depresión posparto en centros de atención primaria de la Región Metropolitana: un estudio cualitativo.

Background: In Chile, postpartum depression is a prevalent and disabling condition. Universal screening is available but has not been translated into better treatment rates, suggesting the existence of access barriers. Aim: To describe access barriers to postpartum depression treatment in six primary health care clinics in Metropolitan Santiago, Chile. Material and methods: Twenty women with postpartum depression and 18 primary health care professionals were subjected to a semi-structured interview. A qualitative methodology based on Grounded Theory was used. Results: There are user associated barriers such as lack of knowledge about the disease, a negative conceptualization and rejection of available treatment options. There are also barriers associated with poor network support and some features of the health care system such as long waiting times and lack of coordination between clinical and administrative decisions. Conclusions: Patient and provider related barriers restricting treatment of postpartum depression were identified.
Designing, developing and evaluating integrated STEM activities for junior science

Science and mathematics are closely related in the physical world, yet as school subjects they can be quite separate, even where they share overlapping content. Science and mathematics integration has been recommended as a way to increase student conceptual understanding of, interest in, and motivation to learn both subject (Czerniak 2007). Moreover, STEM education (involving the purposeful integration of science, technology, engineering and mathematics) is receiving increasing emphasis in Ireland and elsewhere (Breiner et al. 2012). In this research the STEM focus has been into the design and development and evaluation of a model that will permit teachers to assist students to transfer their mathematical knowledge and skills into Junior Science. This resulted in a CISA (Critical Integrated Skills and Activities) Model for developing context-appropriate integrated materials. The model consists of a Syllabus Map of the overlapping content on the Junior Cycle science and mathematics curricula, a Teaching and Learning Sequence for overlapping science and mathematics content and skills, a CISA lesson template for developing integrated lessons, and three exemplar CISA lesson packs. The Syllabus Map and Sequence were evaluated in an earlier stage of the research and one outcome was the need to provide flexibility in the Model so that teachers could adapt it to their local situation and to their students’ learning needs. Instead of prescribing the science and mathematics topics that should be integrated, teachers can use the Map, Sequence, lesson template and exemplar lessons to identify critical skills that they may adapt to activities suitable for their science teaching. This paper reports on the design of the CISA exemplar lessons, and of the subsequent evaluation of both the lessons and of the overarching CISA Model, by subject matter experts and by teachers.
Multistate Outbreak of Salmonella enterica Serotype Enteritidis Infection Associated with Pet Guinea Pigs

Abstract Salmonella causes about one million illnesses annually in the United States. Although most infections result from foodborne exposures, animal contact is an important mode of transmission. We investigated a case of Salmonella enterica serotype Enteritidis (SE) sternal osteomyelitis in a previously healthy child who cared for two recently deceased guinea pigs (GPs). A case was defined as SE pulsed-field gel electrophoresis (PFGE) XbaI pattern JEGX01.0021, BlnI pattern JEGA26.0002 (outbreak strain) infection occurring during 2010 in a patient who reported GP exposure. To locate outbreak strain isolates, PulseNet and the US Department of Agriculture National Veterinary Service Laboratories (NVSL) databases were queried. Outbreak strain isolates underwent multilocus variable-number tandem repeat analysis (MLVA). Traceback and environmental investigations were conducted at homes, stores, and breeder or broker facilities. We detected 10 cases among residents of eight states and four NVSL GP outbreak str.
TRACING THE ADVERSARIES USING PACKET MARKING AND PACKET LOGGING

Today internet security is a most important. Adversaries often hide themselves their own IP addresses and then launch attacks. Some of them use only one packet logging schemes to achieve IP tracking. Some of them use combine packet marking with packet logging. We initiate a new IP trace back scheme with efficient packet logging aim to have a standard storage requirement for each router. The complicated attackers may launch a Distributed Denial of Service (DDoS) attack. Deterministic Packet Marking performs the trace back without to show the inner topology of the provider's network.
A novel algorithm for frequent itemset mining in data warehouses

Current technology for frequent itemset mining mostly applies to the data stored in a single transaction database. This paper presents a novel algorithm MultiClose for frequent itemset mining in data warehouses. Multi Close respectively computes the results in single dimension tables and merges the results with a very efficient approach. Close itemsets technique is used to improve the performance of the algorithm. The authors propose an efficient implementation for star schemas in which their algorithm outperforms state-of-the-art single-table algorithms.
Design and implementation of domain ontology-based oilfield non-metallic pipe information retrieval system

In order to solve the problems of poor retrieval performance and low retrieval quality in traditional retrieval method, a non-metallic pipe retrieval system based on ontology was designed. Firstly, the theory of ontology and information retrieval technology were introduced, and then an ontology model that can describe different information of oilfield non-metallic pipe was built. The ontology files in the type of html were described by OWL language. After that, they were saved in My SQL database based on Jena. Secondly introduced the retrieval algorithm and retrieval process of the system, realized the semantic analysis of query condition, expanded query and other functions. At last, the domain ontology-based oilfield non-metallic pipe information retrieval system was designed. Compared with the traditional retrieval method, the domain ontology-based non-metallic pipe information retrieval system can significantly improve the recall and precision rate. It has great advantage and potential in the field of intelligent information retrieval.
Transistor power losses in the class E tuned power amplifier

The class E switching-mode tuned power amplifier offers efficiency approaching 100 percent. It is especially applicable at high frequencies because it minimizes the power dissipated during the switching transitions, even if the switching time is an appreciable fraction of the signal period. When the amplifier is properly loaded and tuned, power losses are caused primarily by active-device saturation voltage and resistance, nonzero switching time, and lead inductance. An accurate estimation of the dissipated power is presented giving more accurate circuit and thermal designs.
[ANDALIES project: consumption, offer and promotion of healthy eating habits within secondary schools in Andalusia].

INTRODUCTION The school context stands out as one of the factors influencing the food practices of adolescents. Food consumption during the school day, the cafeterias' supply and the promotional activities proposed by the centers are objects of increasing attention to community health services. OBJECTIVES To describe students' eating habits during the school day; to analyze the food on offer by the cafeterias and surrounding establishments; and to assess whether secondary schools are suitable environments for the promotion of healthy eating habits. DESIGN AND SAMPLE Cross-sectional study during 2010-2012 courses. Sampling units: public secondary schools (95) and students (8.068). Multistage cluster sampling: random and stratified selection by province and habitat size. Selection of students: systematic sampling of classrooms. RESULTS 77.5% of students have breakfast at home: cereals and a dairy product (40.9%) or a liquid (29.2%); 70.3% eat something at school and most of them choose a cold meat sandwich. Fruit consumption is infrequent (2.5%) while packed juices are very common (63.3%). 75% eat sweets, the figure increasing significantly in schools with cafeterias. Cafeterias offer a large number of non-recommended products: soft drinks (97,3%), cold meats (91,8%), sweets and chips (89%). Lack of control of the products on offer is common (68.42%); only 28.4% of the managers know the law. 72.5% of the centers undertake isolated activities for the promotion of healthy eating habits. 71.5% of the centers are surrounded by shops that supply the students. DISCUSSION Low protection of students' food health is evident, resulting from: students' nutritional deficits, the low quality of the food offered by the cafeterias and the lack of activities to encourage healthy habits. For which reason, educational, health and local administrations must accept shared responsibility on this subject.
CFD analysis of lateral jet interaction phenomena for the THAAD interceptor

Recent advances in computational fluid dynamics (CFD) algorithm development and high performance computing have contributed extensively to the transition of CFD into the design and testing environment of defense acquisition programs. During the past seven years, the U.S. Army’s Theater High Altitude Area Defense (THAAD) program has aggressively pursued major computational efforts addressing basic missile aerodynamics and lateral jet interaction (JI) effects associated with the divert and attitude control system. More recently, tremendously complex analysis results have been obtained very efficiently using high priority computing resources under a DOD Challenge Project granted by the High Performance Computing Modernization Office (HPCMO). THAAD has been participating in the Challenge program for the past three years to solve detailed aerodynamic design problems with high fidelity engineering analyses. This paper discusses the success that has been achieved in the design and testing of the THAAD interceptor through extensive utilization of CFD for the most stressing aerodynamic problems and for closer scrutiny of flight anomalies prior to two successful intercepts. Closed book comparisons between CFD analyses and ground test data are presented for single divert jets, multiple attitude control jets, and divert and attitude control jet combinations. Discussions of scaling from ground test to flight conditions and some comparisons with THAAD flight data will be highlighted. We demonstrate how a much better understanding of JI control effects has been achieved through timely analyses, and in turn how this significant increase in engineering capability strongly advocates the view that HPCMO effectively supports the warfighter.
Towards MORK: Model for Representing Knowledge

Smart world needs intelligent system for effective and timely decision making. This is achieved only through a knowledge based system with functional knowledge representation units. In this paper, two models are proposed for representing knowledge. This process involves in getting the data and placing the information in the correct location. Logical notations are used for taking the clauses and graph is used for putting the entities. In Model one, the data is translated into logical statements using predicate logics, later the knowledge is stored in conceptual graph and retrieved. Whereas in Model two, the given information is translated using First Order Logic (FOL), by applying description logic concept rules are defined and as a result reasoning is done. Storage is done by using concept-relation graph. The main aims of our models are to have easy and simple access over the information. These models return the required exact answer, for the higher order query posted by the end user to the intelligent system.
Monte-Carlo Black-Scholes Implementation using OpenCL Standard

The OpenCL is a standard parallel language which is based on 'C' language. It offers users to take full advantage and also provide the flexibility of high level language. In this paper, we explore the use of OpenCL language to implement the complex design on FPGAs by describing the design with high level abstraction language. To demonstrate, we consider the most important benchmarks in financial markets known as Monte-Carlo Black-Scholes implementation to estimate the stock price option
[Relationship between maternal body mass index, gestational weight gain and birth weight; prospective study in a health department].

OBJECTIVES To ascertain the relationship between maternal weight gain and birth weight, in every pre-gestational body mass index (BMI) category. MATERIAL AND METHODS A two-stage sampling observational and descriptive study was carried out in the health department of La Ribera (Valencia, Spain). The sample was divided into four groups according to pre-gestational BMI. FINDINGS 140 pregnant women were studied. We observed rising pre-gestational weight gain (PWG) and trimestral gradients. There was a higher increase from the first to the second trimester than from the second to the third trimester in every pre-gestational BMI category. According to the international recommendations of Institute of Medicine, 16.4% of women had an inferior gestational weight gain (GWG), 38.6% were within the recommendations and 45% were above them. The pre-gestational BMI, categorized by the WHO, is related to the birth weight, showing a statistical significance (F=6.636 and and p<0.001). Obese mothers with a higher weight gain than the recommended have newborns with higher birth weight (4,353 ± 821.924 g) and, underweight mothers with a lower weight gain than the recommended, have newborns with lower birth weights (2,900 ± 381.83 g) than the rest of the groups. CONCLUSIONS The absolute gestational weight gain did not show a statistical significance compared to the birthweight in any of the pre-gestational BMI categories and, as an isolated indicator, is not an added value to the prenatal quality control.
Performance evaluation of P2P VoIP applications

work we evaluate the performance and behavior of two widely spread VoIP applications, namely Skype and Google Talk under different network conditions. Using a controlled environment we adopt different values for the capacities of critical links, delay, packet loss and jitter and assume the quality of received audio as the measurement of interest for evaluating its performance. We use the PESQ - an ITU algorithm that compares the original and degradated audio - in order to infer voice quality and evaluate the impact of each network parameter over the quality of received audio. Instead of ranking VoIP P2P applications, this work aims at analyzing various performance aspects and pointing out the observed weaknesses and strengths.
Nursing safety management in onco-hematology pediatric wards

Objetivou-se identificar como a gestao de seguranca e aplicada pelo enfermeiro no âmbito do gerenciamento do cuidado de enfermagem, e analisar os seus desafios nas enfermarias de onco-hematologia pediatrica. Pesquisa descritiva, qualitativa, realizada no Instituto Estadual de Hematologia Arthur de Siqueira Cavalcanti, Rio de Janeiro, RJ, Brasil, em agosto de 2013. Seis enfermeiros foram entrevistados e utilizou-se a analise tematica. Os aspectos fundamentais relacionaram-se a importância do treinamento e educacao permanente, ao trabalho em equipe, aos desafios no cuidado a crianca hospitalizada e as particularidades da doenca, e a sistematizacao, ao uso de instrumentos e protocolos. Para a seguranca da crianca, a articulacao entre a administracao e assistencia e fundamental, em prol da qualidade.
Biofilm: basic principles, pathophysiology, and implications for clinicians.

BACKGROUND Biofilm is ubiquitous throughout nature including bacteria, fungi, protozoa-associated bacteriophages, and viruses. Whereas it is adaptive for certain organisms in a variety of environments, biofilm is important in understanding and treating clinically relevant infections, especially those involving temporarily or durably implanted devices. METHODS Review of pertinent English-language literature. RESULTS Important advances have been made in understanding biofilm structure and function that elucidate key events in biofilm-based infectious processes. Wounds, oral cavity, urinary tract, gastrointestinal tract, and device-associated biofilm-based infections dominate clinically relevant infections. Criteria have been articulated to detect and diagnose biofilm-associated infection but there are hurdles to overcome to treat effectively such infection. Native biofilm resistance mechanisms as well as incompletely effective human immune system responses impede successful infection resolution. Biofilm-appropriate education appears under-represented in standardized surgical education curriculum. CONCLUSION Several potential methods of enabling primary prevention as well as treatment of biofilm-associated infection are on the near horizon. There is an opportunity to enhance surgical education regarding biofilm prevention, diagnosis, and therapy.
Visual Servoing—Optimal Control Approach—

The visual servoing system is composed of an object and an eye-in-hand robot. The object is moving around the robot work space and the robot is tracking the object by using a visual sensor mounted on the hand. This paper proposes a control theoretic formulation for the visual servoing system. The system is modeled by the perspective transformation of the camera and the kinematic transformation of the robot. The system is linearized at the reference point yielding an MIMO time-invariant model. An optimal control approach is proposed to design a robust feedback controller. Controllability and stability of the system is also discussed. Realtime experiments on PUMA560 are carried out to evaluate and compare the proposed approach with previously proposed algorithms.
Object-based coding of stereo image sequences using joint 3D motion/disparity segmentation

An object-based coding scheme is proposed for the coding of the right channel of a stereoscopic image sequence, using motion and disparity information. A multiresolution block-based motion estimation approach is used for initialization, while disparity estimation is performed using a pixel-based hierarchical dynamic programming algorithm. A split and merge segmentation procedure based on both 3D motion and disparity is then used to determine regions with similar motion and depth parameters. This is combined with an efficient depth modeling method that offers full depth information at the decoder site. In order to reduce the computational load of the merge phase of the algorithm, a fast algorithm is implemented which speeds up the merge procedure considerably. The segmentation part of the algorithm is interleaved with the estimation part in order to optimize the coding performance of the segmentation procedure. Motion and depth model parameters are then quantized and transmitted to the decoder along with the segmentation information. An object-based motion compensating scheme is then used to reconstruct the original image, based on the objects created by the segmentation approach.
Supplementation prevalence and adverse effects in physical exercise practitioners.

Introduction: The use of nutritional supplements is prevalent among physical exercise practitioners and some adverse effects have been reported, however not sufficiently substantial, because they originate from isolated cases. Objectives: Investigate nutritional supplements consumption prevalence and adverse effects of the use of such products. Methods: An epidemiological, representative and transversal study, with 180 physical exercise practitioners in gyms, who answered questionnaires about sports supplementation, associated factors and self-perceived adverse effects. In a subsample of 86 individuals, blood pressure was measured and blood was collected for the evaluation of lipid profile markers, hepatic and renal function. Results: The supplementation prevalence level was 58.3%, whereas the physicians and nutritionists indicated only 21.9%. The reported adverse effects were observed only by supplement users (acne, insomnia, aggressiveness, headaches and tachycardia). Systolic blood pressure was higher in the supplemented group when compared to the control group (p = 0.04), as in the subgroup of thermogenic users (p < 0.0001) and among those who had consumed any type of supplementation for over 2 years (p = 0.005). Serum creatinine levels were higher only in the subgroup of carbohydrates when compared to the control group (p = 0.03). Diastolic blood pressure, lipid profile and hepatic function did not present differences between groups. Conclusions: The use of nutritional supplements without specialized orientation was elevated among physical exercise practitioners, being associated to adverse effects both by the users themselves and by clinical diagnosis.