Miracle-dz/UniFAR-FTUs huggingface dataset:
Concept and Electromagnetic Design of a New Axial Flux Hybrid Excitation Motor for In-wheel Motor Driven Electric Vehicle

In this paper, a new axial flux hybrid excitation motor (AFHEM) with core-wound coils is presented. The structural description and magnetic circuit principle of the AFHEM are introduced. The advantages that are obtained by adopting such stator construction with core-wound coils and introducing of field windings on the stator are self-evident, and the mechanical robustness of the magnetic structure are highlighted. This paper discusses the designed features of AFHEM for application of in-wheel motor drive, and motor performances such as efficiency, torque density and torque control are evaluated for a comparison with those of conventional PM machines. A prototype machine model for wheel hub integration is built. Fundamental performances of the AFHEM are investigated in detail by using finite-element analysis (FEA), such as magnetic field distribution, excitation regulation property, torque-current ratio and torque performance. The comprehensive performance result of AFHEM is suitable for wheel hub integration.
Power Losses and Thermal Analysis of a Hollow-Shaft Rotor Cooling System

A hollow-shaft rotor cooling system for an automotive traction motor is investigated in this paper. Firstly, various kinds of losses, which include iron, air friction and bearing losses are identified for this cooling system. Secondly, a finite element analysis (FEA) model is constructed to estimate the heat transfer coefficient by considering the experimental shaft surface temperature distribution. Finally, this hollow-shaft cooling is implemented to a traction motor in order to find out the benefits in terms of intermittent and continuous performance.
Evaluating the Soft Error Resilience of Instructions for GPU Applications

Graphics Processing Units (GPUs) are widely used in a range of High Performance Computing fields because of high parallelism. As the technology scaling down, GPUs are more susceptible to soft errors which dramatically impact the applications output qualities. Silent Data Corruption (SDC) is one of the most concerned reliability issues, which require efficient protection mechanisms to eliminate it. Software-directed instruction replication has been a flexible technique to solve SDCs. However, this method requires a trade-off between reliability and overhead. To this end, it is imperative to explore the SDC criticality of the instructions. In this paper, we carry out fine-grained analysis on instruction error behavior of 11 benchmarks, while previous work focused on the error resilience of the entire application. Combining the error resilience of instructions with the dynamic data flow of applications, we find potential protection opportunities for the instructions.
Inductance Identification of Synchronous Reluctance Motors Using Capacitor Discharge Method

Motor characterization has an important role in control of Synchronous Reluctance Motor (SynRM) which achieving the optimal efficiency and torque accuracy. This paper presents a new method by using the capacitor discharge to determine inductance characteristics of the SynRM, the magnetic saturation is taken into consideration. Apparent and incremental inductances will be analyzed and discussed. This presented identification method is general and to be able to use for many motor types, not only for SynRM. Finally, experimental results on the SynRM 1.1kW manufactured by ABB are presented to confirm the validity of the proposed method.
A Study on Pixel-wise Parallel Calculation for Depth from Focus Using Gray Level Variance

Depth-from-focus (DfF) methods can estimate the depth from a set of images taken with different focus settings. A RM method has been recently proposed and has a good performance. The method uses the relationship between the luminance value of a target pixel and the mean value of the neighbors, which follows Poisson distribution. The mean value, however, needs to be calculated using different window sizes, so an enormous amount of memory and calculation time are required. Additionally, in the calculation, box filtering to compute the mean is used twice, so a target pixel has a strong relationship with the neighbors, which makes it difficult to perform pixel-by-pixel parallel calculation for reducing the calculation time. In this paper, to address these problems, we consider modifying the image-wise calculation to the pixel-wise calculation, and propose a method that replaces the calculation with a single time filtering by approximating the formula. This can reduce the memory consumption and allows us to use pixel-wise parallel calculation.
Thermal Analysis of Metallized Film Capacitors Used in Motor Drive Controller

An important function of the capacitors is to absorb ripple current. Loss occurs when ripple current enters the capacitor. This loss heats the capacitor core. Because the metallized film capacitor has a temperature resistance value, the capacitor has an upper limit of absorption ripple current. In this paper, the thermal performance of a kind of metallized film capacitor is tested. The weak point of temperature distribution is in the terminals, especially in the large current. The water-cooling method is more effective than natural cooling method in reducing the temperature of the metallized film capacitor. The thermal resistance of the capacitor decreases by 72.4%. The ripple current rating of capacitor increases from 180 Arms to 398 Arms. With the increase of the temperature of cooling water, the temperature increased gradually. The thermal resistance of the capacitor is a complex parameter based on the change of ambient temperature. The effect of temperature reduction is not obvious in the range of experimental flow.
Correlations between structural changes and dielectric behavior of thermally aged XLPE

This study aims at elucidating the correlations between structural changes and the variation of dielectric properties of cross-linked polyethylene (XLPE) during thermal aging. For this purpose, thermal aging experiments were carried out on XLPE samples at 80, 100, 120 and 140 °C for different aging times for a maximum total duration of 5040 hours. Chemical changes were assessed by Fourier transform infrared spectrum (FTIR). Besides, the crystallinity ratio and the melting temperature were evaluated using differential scanning calorimetry (DSC). Frequency domain dielectric spectroscopy was used to investigate the evolution of the dielectric constant and losses of XLPE during aging. The results show that aging at 80 and 100 °C could help to improve the crystalline state of XLPE which leads to the decrease of the dielectric constant. However, for higher thermal stress, the main aging mechanism of XLPE is thermal oxidation which leads to deteriorate the morphology and increase both the polarization and losses, mainly at low frequencies. It has been found also that in some cases, the non-homogeneity of the color of XLPE seems to indicate the increase of interfaces in the material which could lead to increase the dielectric losses due to the interfacial polarization.
Hyperactivité chez l’enfant : réflexions sur les mécanismes psychopathologiques sous-jacents

Requests for consultations in child psychiatry for cases of hyperactivity with or without attention deficit disorder (ADHD) have increased markedly in the last few years. Hyperactivity is presently the most frequently occurring psychopathological disorder in young children. This change could be linked to the mediatisation of this disorder and to a lowering of the threshold of tolerance to behavior disorders and externalized
Pilot Allocation and Interference Coordination for Heterogeneous Network with Massive MIMO/TDD

In this paper, we present our recent studies on pilot allocation and interference coordination for heterogeneous networks (HetNets) using massive multi-input-multi-output (mMIMO) technology in time division duplex (TDD) mode, where the macro-cell base station (MBS) and overlaid small-cell base stations (SBSs) share the same time-frequency resources, and thus co-tier and cross-tier interferences occur. We investigate how to coordinate such undesirable interference for maximizing the system sum-rate under required constraints. As the first approach, we present an uplink pilot allocation scheme to enhance the downlink system sum-rate by coordinating downlink cross-tier interference to small-cell users (SUs) based on the estimated uplink channel state information. In this approach, we study the optimum pilot allocation against the trade-off between two degradation factors, i.e., uplink pilot overhead and downlink cross-tier interference. As the second approach, we present a dynamic SBS clustering scheme to mitigate dominant co-tier interference among small cells (SCs), where the SBS clustering is carried out based on potential mutual co-tier interference strength between two SCs. We also consider the SBS precoder design in each cluster to further improve the downlink sum rate of SCs under SBS power constraint. Simulation results show that our proposals are useful approaches to enhance the sum rate performance in TDD-mMIMO-HetNets.
Breastfeeding and Social Media among First-Time African American Mothers

Objective— To describe the use of social media during the antepartum and postpartum periods among first-time African American mothers and their support persons. Design— A qualitative critical ethnographic research design within the contexts of Family Life Course Development Theory and Black Feminist Theory. Setting— Participants were recruited from community-based, public health, and home visiting programs. Participants— A purposive sample was recruited, consisting of 14 pregnant African American women and eight support persons. Methods— Pregnant and postpartum African American women and their support persons were interviewed separately during the antepartum and postpartum periods. Data were analyzed thematically. Results— Participants frequently used social media for educational and social support and searched the internet for perinatal and parenting information. Most participants reported using at least one mobile application during their pregnancies and after giving birth. Social media were typically accessed through smartphones and/or computers using different websites and applications. While participants gleaned considerable information about infant development from these applications, they had difficulty finding and recalling information about infant feeding. Conclusion— Social media are an important vehicle to disseminate infant feeding information; however, they are not currently being used to full potential. Our findings suggest that future interventions geared towards African American mothers and their support persons should include social media approaches. The way individuals gather, receive, and interpret information is dynamic. The increasing popularity and use of social media platforms offers the opportunity to create more innovative, targeted mobile health interventions for infant feeding and breastfeeding promotion.
COLOBOMA MACULAR ATÍPICO: A PROPÓSITO DE UN CASO ATYPICAL MACULAR COLOBOMA: A CASE REPORT

Clinical case: This was a 17-month-old boy who had macular retinochoroidal lesions in both eyes following maternal varicella during pregnancy. Discussion: The scars were suggestive of congenital chorioretinal infection, but because of negative serology and the clinical picture, we believe the problems are atypical macular colobomata (Arch Soc Esp Oftalmol 2006; 81: 713-716).
Influence of combined botanical extract preparation on body composition - results from double blind randomized clinical trial

Introduction: Obesity is becoming a great cause of concern in many countries. To shift the energy balance towards expenditure, dietary supplements should be designed to increase thermogenesis, lipolysis, loss of body water, and activation of digestive enzymes. Material and methods: Double blind randomized placebo-controlled clinical trial to evaluate a botanical water extract composed of green tea extract, bean peel and asparagus. During 56 days of the study body composition, anthropometric measurements and biochemical parameters were estimated in fifty-one healthy, moderately obese subjects. Results: Forty-two subjects completed the study according to the protocol. In the active preparation group, weight, BMI, percent of body fat, waist, hip and waist-to-hip ratio were not statistically different compared to placebo. The sum of skinfolds differed significantly. When selecting a subgroup of patients with hypercholesterolaemia (n=21), in the active extract group the change in body composition index (BCI) and fat mass (FM) were significant (p=0.037 and p=0.019 respectively) in patients with hypercholesterolaemia when compared to normocholesterolaemic patients. Fat-free mass (FFM) did not change significantly in the active extract group (p=0.083) when hypercholesterolaemic and normocholesterolaemic patients were compared. None of the parallel parameters (FM and FFM change, BCI) changed significantly in the placebo group when compared to hypercholesterolaemic and normocholesterolaemic subjects. Conclusions: There was no statistically significant change in weight, BMI or percent of body fat measured by bioimpedance in the active extract and placebo groups. Obese patients with hypercholesterolaemia benefited from the active extract, with reduced total fat mass and a positive influence on the body composition improvement index.
Medical and Pharmacy Cost and Utilization Outcomes of a Quantity Limit on the 5-HT1 Agonists (Triptans) by a Managed Care Organization

were analyzed during the same time periods. RESULTS: The quantity limit resulted in an overall drug and medical cost savings of $420,754 during the six months after initiation of the program. The utilization and costs associated with the triptans and other analgesic medications decreased, while the percentage of patients taking prophylactic therapy increased. A small change in utilization and costs of hospitalizations, PCP visits, ER visits, and neurologist visits was noted.
Experiential satisfaction with a wholly online marketing unit

This study examines the relationship between students’ satisfaction with a core undergraduate marketing unit, preference for online or face-to-face mode of teaching delivery and intent to major in marketing. The core undergraduate marketing unit was offered only in a wholly online mode, although many of the students had experienced traditional face-to-face classes in previous units. The sample was 112 undergraduate students. Findings indicated students’ preference for face-to-face mode of teaching delivery did not affect satisfaction with the marketing unit, but there was a significant relationship between unit satisfaction and students preference for online mode of teaching delivery. Mode of teaching delivery preferences suggested neither the online or face-to-face mode affected students’ choice in majoring in the marketing discipline, however, there was a significant relationship between student satisfaction and intent to major in marketing.
Understanding and Preventing Yoga Injuries

To obtain an initial estimate of the extent, nature, and causes of Yoga-related injuries, we invited 33,000 Yoga teachers, Yoga therapists, and other clinicians to participate in a 22-question survey. The survey was conducted with the cooperation of the International Association of Yoga Therapists (IAYT), Yoga Alliance, and Yoga Spirit. 1,336 responses came from 34 countries between May and October of 2007. A majority of participants believed that the most common and the most severe injuries occurred in the neck, the lower back, the shoulder and wrists, and the knee. Poor technique or alignment, previous injury, excess effort, and improper or inadequate instruction were the most commonly cited causes of Yoga injuries. Individual asanas were linked with particular injuries in a highly specific way. For example, neck injuries were attributed to sirsasana (headstand) and sarvangasana (shoulderstand); lower-back injuries were associated with forward bends, twists, and backbends; shoulder and wrist injuries we.
Opinião de auxiliares e técnicos de enfermagem sobre a sistematização da assistência de enfermagem

This study aimed to identify the perception of nursing auxiliaries and technicians about nursing care systemization (NCS) and the legal aspects of their participation in this process, about the contribution of this method in the organization of care services and the activities they perform. This descriptive study involved 77 professionals at a teaching hospital in the countryside of Sao Paulo’s state/Brazil, in 2006. The data, collected through a questionnaire and Likert-type scale, revealed that the professionals recognize the use of NCS in their work sector, but do not relate their activities to the method. Most professionals indicated that they contribute by receiving the patient at the unit, collecting data like heart frequency, blood pressure and temperature, and by elaborating nursing prescriptions. They also mention participating in assessment, communicating the changes observed. It is concluded that nursing auxiliaries’ and technicians’ participation in this method remains obscure, that they do not perceive their attributions. This fact is strengthening by the biased understanding of legislation, evidencing the urgent need to include this theme in the curriculum of nursing auxiliary and technician courses, clarifying the attributions and responsibilities of each nursing team member.
Effects of long-term clodronate administration on bone and on fracture healing in rat, with special reference to methodological aspects

Bisphosphonates (BPs) are used in the treatment of osteoporosis. However, their effects, especially long-term effects, on bone and bone healing are not fully known. Clodronate (dichloromethylene bisphosphonic acid) is a first-generation BP. The thesis was based on two animal experiments. The first, with 199 rats on long-term clodronate treatment, was divided into four separate substudies. The effects of long-term administration of clodronate to rats were investigated after 32 weeks of treatment. The effects on the femoral shaft, femoral neck and vertebra in normal, non-osteoporotic skeleton were described in two publications. The evaluations were made by biomechanical, densitometric, histological, hematological and electron-microscopic investigations. Fracture healing was investigated in rats after 24 weeks of clodronate treatment. The tibia was fractured, and the effects of treatments were evaluated at 4 and 8 weeks after the fracture. Radiographs and densitometric pQCT in the evaluation of experimental fracture healing were compared. In the other experiment with 30 mice, a mouse immobilisation osteoporosis model for further studies was investigated. Long-term administration of clodronate at therapeutic dosage had no harmful impacts but rather some beneficial effects on normal, non-osteoporotic bone. However, long-term high-dose clodronate treatment resulted in a decrement of tibial length but did not have any other significant or adverse effects. In the evaluation of fracture healing, pQCT proved to be better than radiographs in differentiating the total mineralised cross-sectional area of callus and the area of compact bone. Clodronate treatment does not seem to prolong the fracture healing process, even when administered on a long-term basis before the fracture. Clodronate increased the size of callus, but had only a minor effect on its biomechanical properties. Three weeks of hind limb immobilization caused local osteopenia in the tibia when compared to its contralateral leg. In conclusion, this thesis suggests that long-term administration of clodronate at therapeutic dosage has no harmful, but rather some beneficial effects on normal, non-osteoporotic bone. However, a fivefold dose of clodronate causes a slight decrease in the growth of tibial length. Healing of fractures during or after clodronate treatment is not inhibited.
(Z)-3-(4-Chlorophenyl)-2-(2-phenylcyclohex-2-en-1-ylimino)thiazolidin-4-one

The title compound, C21H19ClN2OS, exists in a cis conformation with respect to the N=C bond [1.2608 (13) Å]. The cyclohexene ring adopts a distorted half-chair conformation. The thiazolidine ring is close to being planar (r.m.s. deviation = 0.057 Å) and makes dihedral angles of 62.92 (6) and 56.32 (6)°, respectively, with the benzene ring and the chloro-substituted benzene ring. The dihedral angle between the benzene ring and the chloro-substituted benzene ring is 72.91 (6)°. In the crystal, molecules are linked by C—H⋯O and C—H⋯N hydrogen bonds into undulating sheets lying parallel to the bc plane. The crystal is further consolidated by C—H⋯π interactions.
Effects of oestrogen on human breast cancer cells in culture

Oestrogen regulates the growth of human breast cancer cell lines ZR-75–1, T-47-D and MCF-7 (KO and McGrath). Basal cell growth can be reduced (T-47-D) or eliminated (ZR-75–1) by prior growth in the absence of steroid and phenol red for three weeks, demonstrating that oestrogens can have long-lasting effects on cells in culture (termed “steroid memory”). Effects of oestradiol on different cell biological parameters are described and interaction with other steroids and serum growth factors is discussed. Antioestrogen action in these cell lines is affected by at least five parameters: (1) presence of phenol red, (2) time in culture, (3) cell density, (4) antioestrogen concentration, (5) steroid memory. An in vitro model for loss of oestrogen sensitivity in breast cancer is presented. Both dependent (ZR-75–1) and responsive (T-47-D) cells lose oestrogen sensitivity when deprived of steroid in the long term but show a gradual increase in growth. For ZR-75–1 cells, the effects appear to be clonal but occur at a high frequency (about 1 in 1,000 cells). Parallel alterations in sensitivity to other steroids, antioestrogens and serum growth factors are shown. Molecular markers of this action are described and the results compared with the well-established model for loss of androgen/glucocorticoid sensitivity in SI 15 cells.
Characterization of the adverse reactions to drugs in the elderly: Cuba, 2003-2005

I Especialista de I Grado en Farmacología. Unidad Nacional Coordinadora de Farmacovigilancia, Centro para el Desarrollo de la Farmacoepidemiología. II Especialista de II Grado en Farmacología. Unidad Nacional Coordinadora de Farmacovigilancia, Centro para el Desarrollo de la Farmacoepidemiología. III Especialista de II Grado en Farmacología. Facultad Salvador Allende. IV Master en Economía de la Salud. Especialista de II Grado en Medicina General Integral. Unidad Nacional Coordinadora de Farmacovigilancia, Centro para el Desarrollo de la Farmacoepidemiología.
Effects of prenatal exposure to combined stress on memory retention of passive avoidance learning in rats

Abstract Background: Many studies have shown that prenatal stress affects development of fetal brain. Objective: The aim of this study was to evaluate the effect of prenatal exposure to combined stress on memory retention of passive avoidance learning in rats. Methods: This experimental study was performed on 16 male and 16 female Wistar rats in 2014. The rats were divided into four groups: male and female control groups, with natural pregnancy and two male and female treatment groups with exposure to combined stress (electromagnetic field, immobility and social stress) in the second and third weeks of embryonic development. The learning was evaluated using shuttle box setup. Data were analyzed using ANOVA and Tukey test. Findings: The prenatal combined stress caused decrease in the latency time to enter the dark chamber in male and female new born rats in post-training periods especially the second week compared to the control groups. Conclusion: With regards to the results, prenatal exposure to combined stress can reduce the memory retention of passive avoidance learning.