bluuebunny/crossref_metadata_2025_split huggingface dataset:
Postpartum Mental State of Mothers of Twins
Authors: Brantmüller Éva , Gyúró Mónika , Galgán Kitti , Pakai Annamária 
Published: August 2016

Abstract
Twin birth is a relevant risk factor for postnatal depression (PND). The primary objective of our study is to reveal the prevalence of suspected cases of depression and to identify some background factors among mothers of twins. We applied convenience sampling method within a retrospective, quantitative study among mothers given birth to twins for six months, but, at least, three years. The participants completed the self-administered, modular questionnaire and the standard EPDS questionnaire anonymously. 35% of mothers of twins reached or exceeded the threshold value for depression following the first six months after delivery. No significant difference was found in the prevalence of the suspected cases among the primipara and multipara (p=1.000). At the same time, artificial conception proved to be a significant risk factor (p= 0.019). Distraught family life (p=0.001) and unfavorable changes in a domestic partnership (p=0.009) increased the prevalence of the suspected cases of depression significantly. The health visitor is the only person who knows the hierarchy of families with their weaknesses and strengths in the Hungarian primary health care; therefore, her role is unquestionable in the recognition of maternal mood disorders. The health visitor compares the scores of the EPDS questionnaire with the experiences during family visits, and with all of these facts, she refers the person in need to a specialist.
Are Future Teachers Methodically Trained to Distinguish Good from Bad Educational Software?
Authors: Pjanić Karmelita , Hamzabegović Jasna 
Published: August 2016

Abstract
In the era of information technology and general digitization of society, invasion of every kind of software is evident. No matter how laudable is the existence and development of educational software, taking into account its role, its quality and whether it achieves the desired goal is very important. In addition to programming experts it is necessary to include educational experts in certain fields when developing educational software. Those who should take an active part and be able to distinguish good from bad educational software are certainly teachers. Especially as they should be the most competent persons from which parents will seek the advice and opinion when searching for appropriate educational software.
Teaching Method
Authors: Niculescu Carmen-Mihaela 
Published: August 2016

Abstract
The human being started as a self-educated person, this way managing to improve his living. For his descendants to avoid failures, he started to share his ancestors’ experience. When some people’s knowledge acquirement became big, they were called the sages, and among of them became eventually teachers, that took the role of transmitting the useful information related to life environmental conditions they lived. In time, their needs became more and more complex and their knowledge deeper. In the act of teaching itself, teachers create a shortcut between necessity and solving it, going beyond failures. Obviously, the present society is technologized, where the human being uses technology but he also searches for himself. This quest should be naturally performed with the help of the educator, of the experienced student, so that he could shape the young man and make him feel good with himself and find his place within society. The current education system describes to younger people nothing more than the evolution of science, technique and art, starting with the first trials till our days. What is really mandatory for us is to find a way where the educational system could become again a necessity for a person and not a way to keep very many people busy, while they can be intellectually and psycho-emotionally shaped.
What does it Mean to Educate?
Authors: Knausz Imre 
Published: August 2016

Abstract
This paper focuses on the most abstract and most boring question of pedagogy or, as I prefer to call my field of interest, the theory of pedagogy. My aim is to try to rehash and re-pose this question – maybe even answer it? In this regard, Ottó Mihály advises us to be careful; in the preface to his notes on the philosophy of pedagogy he asserts that we do not know what educating is but we know that there exist “various valid and eligible answers” to this question.
Correlation Between Leadership Effectiveness and Personality Preferences at a Hungarian Independent Financial Advisor Company
Authors: Mészáros Aranka , Budavári-Takács Ildikó 
Published: August 2016

Abstract
The main focus of our research is to study, with the help of the dimensions of the Myers-Briggs Type Indicator (hereinafter: MBTI) the personality preferences of those leaders at the financial advisor company who are successful already. In the present study first we introduce the preferences of MBTI. Then we go on to define our hypothesis regarding the typical preferences of the leaders, focusing on the main leadership tasks of the company.
Molecular dynamics simulation of aluminium melting
Authors: Novak Jakob 
Published: August 2016

Abstract
Solid–liquid phase transition has been simulated by the molecular dynamics method, using isobaric–isoenthalpic ensemble. For interatomic potential, glue potential has been selected. The original algorithm for bookkeeping of the information on neighbouring relationships of the atoms has been developed and used in this research. Time consumption for calculation of interatomic forces has been reduced from o(N
2
) to o(N) by the use of this algorithm.
Calculations show that phase transition from solid to liquid occurs between 1,000 K and 1,300 K. The simulated temperature of phase transition is higher than the experimental value due to the absence of crystal defects. If constant heat flux is supplied, temperature decreases during melting because the superheated state becomes unstable. During the cooling process, no significant changes of the observed variables were detected due to the high cooling rate, which prevents crystallisation.
Research of Cavitation at High Shear Stress
Authors: Csuka Zoltán , Olšiak Róbert , Fuszko Zoltán 
Published: August 2016

Abstract
The article describes the theory of cavitation at high values of shear stress in a viscous liquid. For this purpose, a spatial model of two cylindrical shells imposed concentrically was designed. In the narrow gap between the cylinders the temperature, density and viscosity of liquid is constant. Shear stress is induced by the rotary motion of the inner cylinder, resulting in a change of velocity and pressure fields. Due to the pressure drop between the cylinders there is a precondition to the formation of cavitation bubbles at the point of the lowest static pressure. To verify the assumption was made CFD model based on simplified physical model, through which cavitation was qualitatively and quantitatively assessed. In this paper the results of the numerical solution will be presented alongside with basic form of experimental device for physical generation of cavitation at high values of shear stress.
Influence of Induction Hardening on Wear Resistance in Case of Rolling Contact
Authors: Šofer Michal , Fajkoš Rostislav , Halama Radim 
Published: August 2016

Abstract
The main aim of the presented paper is to show how heat treatment, in our case the induction hardening, will affect the wear rates as well as the ratcheting evolution process beneath the contact surface in the field of line rolling contact. Used wear model is based on shear band cracking mechanism [1] and non-linear kinematic and isotropic hardening rule of Chaboche and Lemaitre. The entire numerical simulations have been realized in the C# programming language. Results from numerical simulations are subsequently compared with experimental data.
FSW Numerical Simulation of Aluminium Plates by Sysweld - Part I
Authors: Jančo Roland , Écsi Ladislav , Élesztős Pavel 
Published: August 2016

Abstract
Friction Stir Welding (FSW) is one of the most effective solid state joining processes and it has numerous potential applications in many industries. The simulation process can provide the evolution of physical quantities such as temperature, metallurgical phase proportions, stress and strain which can be easily measured during welding. The numerical modelling requires the modelling of a complex interaction between thermal, metallurgical and mechanical phenomena. The aim of this paper is to describe the thermal-fluid simulation of FSW using the finite element method. In the theoretical part of the paper heating is provided by the material flow and contact condition between the tool and the welded material. The thermal-fluid results from the numerical simulation for aluminium alloy using SYSWELD are also presented in this paper.
On Relations Between Singlet and Triplet Recombination Yields for Singlet and Triplet Precursors
Authors: Doktorov Alexander B. 
Published: August 2016

Abstract
The relations have been analytically derived for recombination yields of radical pairs with different precursor states and by different reaction channels (singlet and/or triplet) in arbitrary magnetic and microwave fields. Recombination of two particles from a radical pair mostly with anisotropic reactivity is assumed to take place in a narrow reaction zone, and relative translation motion including rotation of reactants may be an arbitrary stochastic process. In addition, the approach may take into account the time-dependent spin Hamiltonian. The novel method for the calculation of recombination yields is suggested, and general expressions for recombination yields are derived for strong singlet-triplet dephasing. Some of the relations and expressions are the basis of the results given in the literature and their generalization to the case of non-model reacting systems that does not use simplification of reactants structure and reactants motion in solutions.
Enhancing Digital Video Analysis of Bar Kinematics in Weightlifting: A Case Study
Authors: Dæhlin Torstein E. , Krosshaug Tron , Chiu Loren Z.F. 
Published: August 2016

Abstract
Dæhlin, TE, Krosshaug, T, and Chiu, LZF. Enhancing digital video analysis of bar kinematics in weightlifting: a case study. J Strength Cond Res 31(6): 1592–1600, 2017—Weightlifting technique can be objectively assessed from two-dimensional video recordings. Despite its importance, participants' bar trajectories in research involving the snatch or clean exercises are often not reported, potentially due to the time required to digitize video. The purpose of this investigation was to evaluate the use of a light-emitting diode (LED)-based marker, digital video, and open-source software to automatically track the bar end during weightlifting exercises. A former national-level weightlifter was recorded with a digital video camera performing the snatch, clean and jerk, and squat exercises. An LED-based marker was placed on the right end of the bar. This marker was automatically tracked using 2 open-source software programs to obtain vertical and horizontal position coordinates. The LED-based marker was successfully auto-tracked for all videos over a variety of camera settings. Furthermore, the vertical and horizontal bar displacements and vertical bar velocity were consistent between the 2 software programs. This study demonstrates that an LED-based marker can be automatically tracked using open-source software. This combination of an LED-based marker, consumer camera, and open-source software is an accessible, low-cost method to objectively evaluate weightlifting technique.
Effect of a Compressive Garment on Kinematics of Jump-Landing Tasks
Authors: de Britto Morgana A. , Lemos Andressa L. , dos Santos Christielen S. , Stefanyshyn Darren J. , Carpes Felipe P. 
Published: August 2016

Abstract
de Britto, MA, Lemos, AL, dos Santos, CS, Stefanyshyn, DJ, and Carpes, FP. Effect of a compressive garment on kinematics of jump-landing tasks. J Strength Cond Res 31(9): 2480–2488, 2017—During jump-landing tasks, knee kinematics such as excessive valgus have been linked to knee injury in females. We determine the influence of a compressive garment on knee valgus during landing. Physically active women (n = 27, mean age 23 years) performed 4 different jump-landing tasks with 2 apparel conditions (compressive garment and regular sports shorts). Kinematic data were collected to determine knee flexion and valgus angles and the maximum jump height. Results showed that the compressive garment decreased knee flexion and knee valgus range of motion, without significant changes in the maximum jump height. As a practical application, we suggest that compression could be a strategy to reduce dynamic valgus without influencing jump performance, which motivates further study of its potential for knee injury prevention.
Evaluation of the Effectiveness of Compression Garments on Autonomic Nervous System Recovery After Exercise
Authors: Piras Alessandro , Gatta Giorgio 
Published: August 2016

Abstract
Piras, A and Gatta, G. Evaluation of the effectiveness of compression garments on autonomic nervous system recovery after exercise. J Strength Cond Res 31(6): 1636–1643, 2017—The aim of this investigation was to evaluate the recovery pattern of a whole-body compression garment on hemodynamic parameters and on autonomic nervous system (ANS) activity after a swimming performance. Ten young male athletes were recruited and tested in 2 different days, with and without wearing the garment during the recovery phase. After a warm-up of 15 minutes, athletes were instructed to perform a maximal 400-m freestyle swimming event, and then time series of beat-to-beat intervals for heart rate variability (HRV), baroreflex sensitivity (BRS), and hemodynamic parameters were recorded for 90 minutes of recovery. The vagally mediated high frequency (HF) power of R-R intervals, NN50, and pNN50 showed a faster recovery due to the costume; meanwhile, the low frequency (LF) spectral component of HRV (LFRR) index of sympathetic modulation of the heart and the LF:HF ratio and BRS alpha index (αLF) were augmented in control than in garment condition. When athletes wore the swimsuit, cardiac output was increased and the returning of the blood to the heart, investigated as stroke volume, was kept constant because of the reduction of the total peripheral resistances. During control condition, heart rate (HR) was restored back to baseline value 20 minutes later with respect to garment condition, confirming that the swimsuit recover faster. The effectiveness of the swimsuit on ANS activity after a maximal aerobic performance has been shown with a greater recovery in terms of HRV and hemodynamic parameters. Baroreflex sensitivity was reduced in both conditions, maybe due to prolonged vasodilatation that may have also influenced the postexercise hypotension.
Risk Stratification to Decrease Unnecessary Diagnostic Imaging for Acute Appendicitis
Authors: Depinet Holly , von Allmen Daniel , Towbin Alex , Hornung Richard , Ho Mona , Alessandrini Evaline 
Published: August 2016

BACKGROUND:
There has been an increase in the use of imaging modalities to diagnose appendicitis despite evidence that can help identify children at especially high or low risk of appendicitis who may not benefit. We hypothesized that the passive diffusion of a standardized care pathway (including diagnostic imaging recommendations) would improve the diagnostic workup of appendicitis by safely decreasing the use of unnecessary imaging when compared with historical controls and that an electronic, real-time decision support tool would decrease unnecessary imaging.

METHODS:
We used an interrupted time series trial to compare proportions of patients who underwent diagnostic imaging (computed tomography [CT] and ultrasound) between 3 time periods: baseline historical controls, after passive diffusion of a diagnostic workup clinical pathway, and after introduction of an electronic medical record–embedded clinical decision support tool that provides point-of-care imaging recommendations (active intervention).

RESULTS:
The moderate- and high-risk groups showed lower proportions of CT in the passive and active intervention time periods compared with the historical control group. Proportions of patients undergoing ultrasound in all 3 risk groups showed an increase from the historical baseline. Time series analysis confirmed that time trends within any individual time period were not significant; thus, incidental secular trends over time did not appear to explain the decreased use of CT.

CONCLUSIONS:
Passive and active decision support tools minimized unnecessary CT imaging; long-term effects remain an important area of study.
Industry Television Ratings for Violence, Sex, and Substance Use
Authors: Gabrielli Joy , Traore Aminata , Stoolmiller Mike , Bergamini Elaina , Sargent James D. 
Published: August 2016

OBJECTIVE:
To examine whether the industry-run television (TV) Parental Guidelines discriminate on violence, sexual behavior, alcohol use, and smoking in TV shows, to assess their usefulness for parents.

METHODS:
Seventeen TV shows (323 episodes and 9214 episode minutes) across several TV show rating categories (TVY7, TVPG, TV14, and TVMA) were evaluated. We content-coded the episodes, recording seconds of each risk behavior, and we rated the salience of violence in each one. Multilevel models were used to test for associations between TV rating categories and prevalence of risk behaviors across and within episodes or salience of violence.

RESULTS:
Every show had at least 1 risk behavior. Violence was pervasive, occurring in 70% of episodes overall and for 2.3 seconds per episode minute. Alcohol was also common (58% of shows, 2.3 seconds per minute), followed by sex (53% of episodes, 0.26 seconds per minute), and smoking (31% of shows, 0.54 seconds per minute). TV Parental Guidelines did not discriminate prevalence estimates of TV episode violence. Although TV-Y7 shows had significantly less substance use, other categories were poor at discriminating substance use, which was as common in TV-14 as TV-MA shows. Sex and gory violence were the only behaviors demonstrating a graded increase in prevalence and salience for older-child rating categories.

CONCLUSIONS:
TV Parental Guidelines ratings were ineffective in discriminating shows for 3 out of 4 behaviors studied. Even in shows rated for children as young as 7 years, violence was prevalent, prominent, and salient. TV ratings were most effective for identification of sexual behavior and gory violence.
Mobile Phone Interventions for Adolescent Sexual and Reproductive Health: A Systematic Review
Authors: L’Engle Kelly L. , Mangone Emily R. , Parcesepe Angela M. , Agarwal Smisha , Ippoliti Nicole B. 
Published: August 2016

CONTEXT:
Interventions for adolescent sexual and reproductive health (ASRH) are increasingly using mobile phones but may not effectively report evidence.

OBJECTIVE:
To assess strategies, findings, and quality of evidence on using mobile phones to improve ASRH by using the mHealth Evidence Reporting and Assessment (mERA) checklist recently published by the World Health Organization mHealth Technical Evidence Review Group.

DATA SOURCES:
Systematic searches of 8 databases for peer-reviewed studies published January 2000 through August 2014.

STUDY SELECTION:
Eligible studies targeted adolescents ages 10 to 24 and provided results from mobile phone interventions designed to improve ASRH.

DATA EXTRACTION:
Studies were evaluated according to the mERA checklist, covering essential mHealth criteria and methodological reporting criteria.

RESULTS:
Thirty-five articles met inclusion criteria. Studies reported on 28 programs operating at multiple levels of the health care system in 7 countries. Most programs (82%) used text messages. An average of 41% of essential mHealth criteria were met (range 14%–79%). An average of 82% of methodological reporting criteria were met (range 52%–100%). Evidence suggests that inclusion of text messaging in health promotion campaigns, sexually transmitted infection screening and follow-up, and medication adherence may lead to improved ASRH.

LIMITATIONS:
Only 3 articles reported evidence from lower- or middle-income countries, so it is difficult to draw conclusions for these settings.

CONCLUSIONS:
Evidence on mobile phone interventions for ASRH published in peer-reviewed journals reflects a high degree of quality in methods and reporting. In contrast, current reporting on essential mHealth criteria is insufficient for understanding, replicating, and scaling up mHealth interventions.
Peripheral Tramadol in Dentistry: A New Use for an Old Drug
Authors: Chavarría DDS, MSc, PhD Daniel , Pozos DDS, MSc, PhD Amaury 
Published: August 2016

Tramadol is a well known central acting analgesic drug, used in a wide variety of treatments within health sciences; including dentistry. Due to its lack of anti-inflammatory action and some adverse effects related mainly to opioid receptors agonism, it is not use as a routine alternative; keeping mainly for patients allergic to non-steroideal anti-inflammatory drugs or as an adjuvant to manage severe odontogenic pain. Since new available evidence supports the possible analgesic effect of this drug when is applied locally in different sites, recent reports have been done to explore the same effect in the orofacial region, especially to improve the local management of odontogenic pain. This new perspective article summarize some of the current efforts develop to explore the peripheral Tramadol in dentistry; “a new use for an old drug”.
Influence of the Sintering Type in Ceramics Blocks for Cad-Cam
Authors: Kreisler DDS, MSc, PhD Martín , Oliveira DDS, MSc, PhD Osmir 
Published: August 2016

The aim of this study was to characterize the influence of the sintering type in the flexural strength and hardness of ceramic blocks for CAD-CAM. Four type of ceramic blocks were selected and distributed according to the type of sintering to be performed: Group G1 - In-Ceram® Alumina / liquid state; Group G2 - In-Ceram® AL / solid state; Group G3 - In-Ceram® Zircon / liquid state; Group G4 - In-Ceram® YZ / solid state. All blocks were cut in bar shape with dimensions of 25 x 5 x 2 mm. and submitted to the three-point bending test and to the Vickers hardness test method. The results, after statistical analysis, showed that the average flexural strength of group G1 (351.7 MPa) and group G3 (356.3 MPa) were significantly lower than those of group G2 (421.9 MPa) and group G4 (758.4 MPa); as well as all hardness averages were significantly different, being higher for group G2 (1.936,6 HV) and group G4 (1.321,4 HV), when compared to group G1 (1.173,3 HV) and group G3 (1.094,6 HV). It was concluded that the solid state sintering proved to be more efficient to obtain maximum densification of the ceramics blocks, resulting in high values of flexural strength and hardness.