bluuebunny/crossref_metadata_2025_split huggingface dataset:
Investigation on the Aerodynamic Performance of the Compressor Cascade Using Blended Blade and End Wall
Authors: Yi Weilin , Li Jiabin , Ji Lucheng 
Published: September 2018

Abstract
Corner separation limits the increase of the aerodynamic loading in the compressor. Previous numerical studies indicate that the Blended Blade and End Wall (BBEW) technology is useful in delaying, or reducing, or even eliminating the corner separation. This paper presents combined experimental and numerical investigations on a BBEW cascade and its prototype. The experimental results show that the design of Blended Blade and End Wall (BBEW) can improve the performance of the cascade when the incidence angle was positive or at the design point, and the total pressure loss coefficient was reduced by 7 %-8 %. The performance improvement mainly located from 10 %-25 % span heights. Compared with the experiment data, the SST turbulence model shows the best results of the flow field. Based on the numerical results, the details of the flow field and the effect of the Blended Blade and End Wall (BBEW) design on the corner separation are discussed and analyzed.
Rare earth-copper-magnesium intermetallics: crystal structure of CeCuMg, magnetocaloric effect of GdCuMg and physical properties of the Laves phasesRECu4Mg (RE=Sm, Gd, Tb, Tm)
Authors: Stein Sebastian , Heletta Lukas , Block Theresa , Pöttgen Rainer 
Published: September 2018

AbstractThe intermetallic magnesium compounds CeCuMg and GdCuMg as well as the ternary Laves phasesRECu4Mg (RE=Sm, Gd–Tm) were synthesized from the elements by different annealing sequences in high-frequency and muffle furnaces using niobium ampoules as crucibles. All samples were characterized through the lattice parameters using X-ray powder diffraction (Guinier technique). Two structures were refined from single-crystal X-ray diffractometer data:a=764.75(6),c=414.25(4) pm, space groupP6̅2m,wR2=0.0389, 338F2values, 15 parameters for CeCuMg (ZrNiAl type) anda=723.18(2) pm, space groupF4̅3m, wR2=0.0818, 91F2values, eight parameters for Gd1.06(3)Cu4Mg0.94(3)(MgCu4Sn type). The Laves phase shows a small homogeneity range (Gd/Mg mixing). An investigation of the magnetocaloric effect (MCE) of ferromagnetic GdCuMg (ZrNiAl type;TC=82 K) revealed a magnetic entropy change of ΔSM=6.5 J kg−1K−1and a relative cooling power of RCP=260 J kg−1for a field change from 0 to 70 kOe, classifying GdCuMg as a moderate magnetocaloric material for theT=80 K region. Of the Laves phasesRECu4Mg, SmCu4Mg shows van-Vleck paramagnetism above a Néel temperature of 10.8(5) K, whereas GdCu4Mg and TbCu4Mg undergo antiferromagnetic phase transitions at about 48 and 30 K, respectively. TmCu4Mg shows Curie-Weiss behavior in the entire temperature range. The electrical resistivity of SmCu4Mg and the specific heat capacity of GdCu4Mg were measured for further characterization.
Effects of an 8-Week In-Season Elastic Band Training Program on Explosive Muscle Performance, Change of Direction, and Repeated Changes of Direction in the Lower Limbs of Junior Male Handball Players
Authors: Aloui Ghaith , Hammami Mehrez , Fathloun Mourad , Hermassi Souhail , Gaamouri Nawel , Shephard Roy J. , Chelly Mohamed Souhaiel 
Published: September 2018

Abstract
Aloui, G, Hammami, M, Fathloun, M, Hermassi, S, Gaamouri, N, Shephard, RJ, and Chelly, MS. Effects of an 8-week in-season elastic band training program on explosive muscle performance, change of direction, and repeated changes of direction in the lower limbs of junior male handball players. J Strength Cond Res 33(7): 1804–1815, 2019—The aim of this study was to examine the effects of incorporating 8 weeks of biweekly lower-limb elastic band training (knee and hip extension) into the in-season regimen of junior handball players. Study participants (30 men, aged 18.7 ± 0.8 years, body mass 81.1 ± 15.4 kg, height 1.82 ± 0.06 m, body fat: 15.5 ± 5.2%) were randomly assigned between control and experimental groups. Measures obtained before and after intervention included a cycle ergometer force-velocity test, force platform determinations of squat and countermovement jump characteristics, sprint times (5 and 30 m), repeated change-of-direction (RCOD) and change-of-direction (T-half, COD) tests, 1 repetition maximum (RM) half back squat, and anthropometric estimates of limb muscle volumes. Small to trivial improvements of experimental subjects relative to control subjects included peak power (p < 0.001), 1RM strength measures (p < 0.01), sprint times (p < 0.001 for 5 m; p < 0.05 for 30 m), COD (p < 0.01), and all RCOD parameters (p < 0.05) except the RCOD fatigue index. However, vertical jump parameters and limb volumes remained unchanged relative to controls. It may be concluded that adding biweekly elastic band training to a standard conditioning regimen yields small gains in measures that likely have an important influence on handball performance, particularly the ability to sprint, change direction, and make repeated changes of direction. Accordingly, such simple exercises can usefully be adopted as a component of handball training.
Nordic Hamstring Strength of Highly Trained Youth Football Players and Its Relation to Sprint Performance
Authors: Markovic Goran , Sarabon Nejc , Boban Frane , Zoric Ivan , Jelcic Mario , Sos Kresimir , Scappaticci Mark 
Published: September 2018

Abstract
Markovic, G, Sarabon, N, Boban, F, Zoric, I, Jelcic, M, Sos, K, and Scappaticci, M. Nordic hamstring strength of highly trained youth football players and its relation to sprint performance. J Strength Cond Res 34(3): 800–807, 2020—We aimed to characterize Nordic hamstring (NH) strength and bilateral NH strength asymmetry in highly trained youth footballers and to investigate the relationship between NH strength and sprint performance. Twenty-two adult and 133 highly trained youth footballers in the age groups U12–U18 participated in this study. Eccentric hamstring strength was assessed using the NH device. Youth footballers (n = 119) also performed 20-m sprint test. Age-related changes in absolute and relative NH strength, and bilateral NH strength asymmetry were analyzed using 1-way analysis of variance. The linear relationship between relative NH strength and sprint performance was established using a Pearson correlation analysis. Significant age-related increases (F = 3.6–18.9; all p < 0.01) in NH strength were reported for all units except N·kg−1 (F = 1.9; p = 0.08). The largest differences in absolute NH strength were seen between U15 and U16 groups. Bilateral NH strength asymmetry varied from 8 to 16% (F = 1.8; p = 0.09) across all age groups. A large correlation between NH strength and sprint performance was observed (r = −0.52; p < 0.01). Our results indicate that NH strength increases nonlinearly with players' age, with the highest values observed in U16 group. Furthermore, bilateral NH strength asymmetry varied nonsignificantly between 8 and 16%. Finally, 27% of variance of sprint performance of youth footballers could be explained by relative NH strength. The reported NH strength data could be used as normative standards during testing and training of youth football players. Present results also suggest that coaches should pay close attention to eccentric hamstring function in youth footballers.
Divergent Blood Pressure Response After High-Intensity Interval Exercise: A Signal of Delayed Recovery?
Authors: Hunter Gary R. , Fisher Gordon , Bryan David R. , Borges Juliano H. , Carter Stephen J. 
Published: September 2018

Abstract
Hunter, GR, Fisher, G, Bryan, DR, Borges, JH, and Carter, SJ. Divergent blood pressure response after high-intensity interval exercise: a signal of delayed recovery? J Strength Cond Res 32(11): 3004–3010, 2018—The objective of this commentary is to highlight potential factors influential to the adaptation of high-intensity exercise. Herein, we present a rationale supporting the contention that elevated systolic blood pressure, after a bout of high-intensity exercise, may be indicative of delayed/incomplete recovery. Relative to type I skeletal muscle fibers, the unique cellular/vascular characteristics of type II muscle fibers may necessitate longer recovery periods, especially when exposed to repeated high-intensity efforts (i.e., intervals). In addition to the noted race disparities in cardiometabolic disease risk, including higher mean blood pressures, African Americans may have a larger percentage of type II muscle fibers, thus possibly contributing to noted differences in recovery after high-intensity exercise. Given that optimal recovery is needed to maximize physiological adaptation, high-intensity training programs should be individually-tailored and consistent with recovery profile(s). In most instances, even among those susceptible, the risk to nonfunctional overreaching can be largely mitigated if sufficient recovery is integrated into training paradigms.
Resistance Training Performed With Single and Multiple Sets Induces Similar Improvements in Muscular Strength, Muscle Mass, Muscle Quality, and IGF-1 in Older Women: A Randomized Controlled Trial
Authors: Cunha Paolo M. , Nunes João Pedro , Tomeleri Crisieli M. , Nascimento Matheus A. , Schoenfeld Brad J. , Antunes Melissa , Gobbo Luis Alberto , Teixeira Denilson , Cyrino Edilson S. 
Published: September 2018

Abstract
Cunha PM, Nunes JP, Tomeleri CM, Nascimento MA, Schoenfeld BJ, Antunes M, Gobbo LA, Teixeira D, and Cyrino ES. Resistance training performed with single and multiple sets induces similar improvements in muscular strength, muscle mass, muscle quality, and IGF-1 in older women: A randomized controlled trial. J Strength Cond Res 34(4): 1008–1016, 2020—The purpose of this study was to compare the effects between single set vs. multiple sets of resistance training (RT) on measures of muscular strength, muscle mass, muscle quality (MQ), and insulin-like growth factor 1 (IGF-1) in untrained healthy older women. Sixty-two older women were randomly assigned to 1 of the 3 groups: single-set RT (SS, n = 21), multiple-sets RT (MS, n = 20), or nontraining control (CG, n = 21). Both training groups performed RT for 12 weeks, using 8 exercises of 10–15 repetitions maximum for each exercise. The SS group performed only 1 set per exercise, whereas MS performed 3 sets. Anthropometry, muscle strength (1RM tests), lean soft tissue (LST), and MQ from upper limbs (UL) and lower limbs (LL), and IGF-1 were measured before and after training. Both training groups showed significant pre-training to post-training increases for UL1RM (SS: 37.1%, MS: 27.3%, CG: −3.0%), LL1RM (SS: 16.3%, MS: 21.7%, CG: −0.7%), ULLST (SS: 7.8%, MS: 8.8%, CG: −1.1%), LLLST (SS: 5.6%, MS: 6.3%, CG: −0.8%), upper-limb muscle quality (SS: 25.2%, MS: 16.7%, CG: −0.2%), lower-limb muscle quality (SS: 10.5%, MS: 15.4%, CG: −3.5%), and IGF-1 (SS: +7.1%, MS: +10.1%, CG: −2.2%). We conclude that both SS and MS produce similar increases in muscular strength, LST, and MQ of upper and lower limbs, and IGF-1 after 12 weeks of RT in untrained older women. Our results suggest that, in the early stages, the RT regardless number of sets is effective for improving muscular outcomes in this population.
Maximal Strength Training Improves Strength Performance in Grapplers
Authors: Øvretveit Karsten , Tøien Tiril 
Published: September 2018

Abstract
Øvretveit, K and Tøien, T. Maximal strength training improves strength performance in grapplers. J Strength Cond Res 32(12): 3326–3332, 2018—The aim of this study was to assess the short-term effects of maximal strength training (MST) as an accessory to grappling training on strength performance in competitive Brazilian Jiu-Jitsu (BJJ) athletes. Fourteen male BJJ athletes underwent measurements of 1 repetition maximum (1RM) in the squat and bench press, rate of force development (RFD) and peak force (PF) in the squat jump, countermovement jump (CMJ) height, and muscular endurance in pull-ups, sit-ups, and push-ups. After baseline measurements, subjects were randomly allocated to either an MST group or control group (CON). The MST intervention consisted of 4 × 4 repetitions at ≥ 85% of 1RM in the squat and bench press, and 4 sets of pull-ups to failure, performed 3× per week. Both groups were instructed to maintain their BJJ training and avoid additional strength training. Maximal strength training improved 1RM in the squat and bench press by 15 ± 9% (p = 0.02) and 11 ± 3% (p = 0.03), respectively, and CMJ height by 9 ± 7% (p = 0.04). Muscular endurance performance increased by 33 ± 33% in pull-ups (p = 0.03), 32 ± 12% in push-ups (p = 0.03), and 13 ± 13% in sit-ups (p = 0.03). Increases in RFD (35 ± 55%, p = 0.13) and PF (8 ± 9%, p = 0.09) did not reach significance. No improvements were apparent from BJJ training alone (p > 0.05). These findings suggest that MST is a potent approach to rapid improvements in maximal strength, power, and muscular endurance in active grapplers.
UMA BREVE ABORDAGEM SOBRE AS DISPERSÕES SÓLIDAS
Authors: De Sales Daniel Lins , Motta Adriana Cristina , Marcomini André Luís , Beatrice Cesar Augusto Gonçalves , Franco Pedro Henrique Da Rocha , Dantas Fábio Moysés Lins , Da Rocha-Leão Maria Helena Miguez 
Published: September 2018

Aumentar a biodisponibilidade oral de formas farmacêuticas sólidas com fármacos fracamente solúveis tem sido um grande desafio para as indústrias farmacêuticas nos últimos tempos. Diante desta problemática, sistemas com dispersões sólidas têm fornecidos bons resultados. Tal assunto tem sido de grande relevância para as ciências farmacêuticas, no entanto, na atualidade, a literatura nacional carece de informações a respeito dos recentes avanços, principalmente, no tocante a técnica promissora de preparação chamada de Hot melt extrusion. Em vista disso, o intuito desta revisão é contextualizar a importância da solubilidade para a biodisponibilidade oral, conceituar e classificar as dispersões sólidas, abordar modelos matemáticos de miscibilidade fármaco-polímero, apresentar técnicas de preparação e caracterização, além de citar exemplos de produtos comercializados proveniente da tecnologia de HME.
MBD1 Contributes to the Genesis of Acute Pain and Neuropathic Pain by Epigenetic Silencing ofOprm1andKcna2Genes in Primary Sensory Neurons
Authors: Mo Kai , Wu Shaogen , Gu Xiyao , Xiong Ming , Cai Weihua , Atianjoh Fidelis E. , Jobe Emily E. , Zhao Xinyu , Tu Wei-Feng , Tao Yuan-Xiang 
Published: September 2018

The transmission of normal sensory and/or acute noxious information requires intact expression of pain-associated genes within the pain pathways of nervous system. Expressional changes of these genes after peripheral nerve injury are also critical for neuropathic pain induction and maintenance. Methyl-CpG-binding domain protein 1 (MBD1), an epigenetic repressor, regulates gene transcriptional activity. We report here that MBD1 in the primary sensory neurons of DRG is critical for the genesis of acute pain and neuropathic pain as DRG MBD1-deficient mice exhibit the reduced responses to acute mechanical, heat, cold, and capsaicin stimuli and the blunted nerve injury-induced pain hypersensitivities. Furthermore, DRG overexpression of MBD1 leads to spontaneous pain and evoked pain hypersensitivities in the WT mice and restores acute pain sensitivities in the MBD1-deficient mice. Mechanistically, MDB1 repressesOprm1andKcna2gene expression by recruiting DNA methyltransferase DNMT3a into these two gene promoters in the DRG neurons. DRG MBD1 is likely a key player under the conditions of acute pain and neuropathic pain.SIGNIFICANCE STATEMENTIn the present study, we revealed that the mice with deficiency of methyl-CpG-binding domain protein 1 (MBD1), an epigenetic repressor, in the DRG displayed the reduced responses to acute noxious stimuli and the blunted neuropathic pain. We also showed that DRG overexpression of MBD1 produced the hypersensitivities to noxious stimuli in the WT mice and rescued acute pain sensitivities in the MBD1-deficient mice. We have also provided the evidence that MDB1 repressesOprm1andKcna2gene expression by recruiting DNA methyltransferase DNMT3a into these two gene promoters in the DRG neurons. DRG MBD1 may participate in the genesis of acute pain and neuropathic pain likely through regulating DNMT3a-controlledOprm1andKcna2gene expression in the DRG neurons.
Pengaruh Dukungan Sosial Dan Forgiveness Terhadap Kekerasan Seksual Pada Remaja
Authors: Faizah Nur , Layyinah Layyinah 
Published: September 2018

This study aimed to determine the effect of social support and forgiveness to sexual violence in adolescent. Samples were victim of sexual violence in social institution under the auspices of the Ministry of Social Affairs in Jakarta, as many as 92 people. There are 3 measuring instrument used in this study, namely Betrayal Trauma Inventory (BTI), Interpersonal Support Evaluation List (ISEL) and Transgression-Related Interpersonal Motivation (TRIM-14). The sampling technique used non-probability sampling. Analysis of the data used multiple regression analysis at 0.05 significance level. Based on the hypothesis testing obtained R2 value of 17.7%. This means that the effect of the independent variable on the dependent variable is equal to 17.7% while 82.3% are influenced by other variables. Based on the sig. obtained sig. 0.002 which means that there is a significant effect of social support (appraisal support, tangible assistance, emotionalsupport, informational support) and forgiveness (avoidance motivation, revenge motivation, and benevolence motivation). DOI: 10.15408/tazkiya.v20i2.9169
The Effect Of Mastery Learning On Affective Characteristics Of Students A Quantitative Research Synthesis
Authors: Hayat Bahrul 
Published: September 2018

Many experimental researches have been conducted until recent years to see the effect of mastery learning approach on students’ cognitive behavior and affective characteristics. But the question is how much evidence is there in the existing research results provides scientific conclusions by combining existing experimental results. By treating different experiments of mastery learning as research replications, the experimental results can be combined using a meta-analysis technique. This paper shows how a quantitative research synthesis can effectively be used to combine statistical evidences of researches conducted separately and independently. The effect of mastery learning on affective characteristics of students was selected for this research synthesis. The mastery learning approach to be investigated in this research synthesis is Bloom type of mastery learning strategy. Using 26 independent comparisons, the results of study show that: a) the effect sizes of mastery learning on affective characteristics of students are heterogeneous across studies, b) the source of study, either from dissertation or journal article, does not explain the variability among the effect sizes, c) mastery learning programs using a ≥ 75% mastery criterion seem to have positive affective impact on the students, while those using < 75 % mastery criterion have no impact on the affective characteristics of students, d) the mean effect size shows a decreasing trend as the level of education increases, e) the mean effect size is highly positive for mathematics class and low positive effect for science and social studies, and f) short treatment duration has a much larger positive effect size than the long term treatment duration. DOI: 10.15408/tazkiya.v20i2.9176
ANÁLISE DE POLÍTICAS PÚBLICAS: uma breve revisão de aspectos metodológicos para formulação de políticas
Authors: Estevão Renildo Barbosa , Ferreira Maria D'Alva Macedo 
Published: September 2018

É objetivo deste artigo apresentar uma reflexão acerca da Análise de Política Pública. Para tanto, recorre-se à literatura relativa à formulação de política pública e sua agenda, bem como do processo de tomada de decisão. Inicialmente, apresenta-se uma ideia simplificada de sistema político, com suas demandas, decisões e ações, utilizando-se como cenário, o modelo sistêmico. Em seguida, abordam-se as influências que as relações entre Estado e sociedade trazem para as políticas públicas e as visões do Estado que buscam explicar essas relações. No ponto seguinte, conceitua-se análise de políticas, bem como esclarecem-se seus objetivos. Num quarto momento, são expostos os modelos de tomada de decisão relevantes à formulação da política. Por fim, apresenta-se o papel das organizações na formulação da política. Assim, foi possível explorar aspectos essenciais para se verificar o processo de construção da política pública e por que determinada política entra na agenda pública, destacando-se "um estudo da elaboração das políticas", onde as atenções se voltam à fase da formulação da política pública.
FLOTAÇÃO DE SILICATOS
Authors: Agapito Mendes Marcos Vinicius , De Moura Cananéia Hayanne Lara , Borges Neiva Isadora , Alves Machado Lorrane , Alves Correa Lucas 
Published: September 2018

Os silicatos são minerais de maior abundância na litosfera, sua flotação apresenta certa complexidade por conter seis tipos de classes de acordo com a sua estrutura cristalina. O objetivo do presente artigo é revisar bibliograficamente o processo de flotação de silicatos, uso de coletores e aplicações. Os principais reagentes utilizados na flotação são a amina e o ácido carboxílico, mas estudos recentes indicam que as misturas entre coletores contribuem para a sinergia da ação destes. Devido ao alto custo da amina, alguns estudos recentes mostram que esta pode ser substituída parcialmente por espumante ou ainda totalmente por óleo diesel.
Huella de carbono del cultivo de rosas en Ecuador comparando dos metodologías: GHG Protocol vs. PAS 2050/ Carbon footprint of the cultivation of roses in Ecuador comparing two methodologies: GHG Protocol vs. PAS 2050
Authors: Guallasamin Constante Karina , Simón-Baile Débora 
Published: September 2018

Ecuador es el tercer exportador de rosas a nivel mundial. Un factor clave para la competitividad internacional es calcular y reducir las emisiones de gases de efecto invernadero (GEI). Por ello, se calculó la huella de carbono (HC) del cultivo de rosas en Ecuador, tomando como caso de estudio la Empresa Ecoroses S.A. en el año 2015. La empresa está ubicada en el cantón Mejía, provincia de Pichincha y dedica el 100% de su producción a las rosas. La HC se calculó mediante dos metodologías: GHG Protocol y PAS 2050, considerando los límites del sistema “de la cuna a la puerta”. Los factores de emisión fueron recopilados de bases de datos internacionales como IPCC y Ecoinvent v2.2. El resultado de la HC fue de 3,75 kg CO2eq/kg de rosa exportada. Las tres fuentes de emisión de GEI que más afectan son: los productos agrícolas (37,7%), la energía eléctrica (13,3%) y el uso de combustibles fósiles (10,95%). Esta HC duplica a la del cacao seco y es más de 8 veces mayor que la del banano nacional. Por ello, se propone implementar buenas prácticas ambientales para reducir los GEI, en concreto, fertilizantes orgánicos, ahorro energético y biocombustibles.
Abstract
Ecuador is the third largest exporter of roses worldwide. A key factor for the international competitiveness is to calculate and reduce greenhouse gases (GHG). For this reason, we calculated the carbon footprint (CF) of the cultivation of roses in Ecuador, taking as a case study the Company Ecoroses S.A. in the year 2015. The company is located in the canton Mejia, province of Pichincha, and dedicates 100% of its production to roses. The CF was calculated using two methodologies, GHG Protocol and PAS 2050, considering the limits of the system “from the cradle to the door”. The emission factors were compiled from international databases such as IPCC and Ecoinvent v2.2. The result of the CF was 3,75 kg CO2eq/kg of rose exported. The three sources of emission of GHG that most affect are: agricultural products (37,7%), electrical energy (13,3%), and the use of fossil fuels (10,95%). This CF doubles that of dry cocoa, and is more than 8 times higher than that of domestic bananas. Therefore, the implementation of good environmental practices is proposed to reduce GHG, specifically, organic fertilizers, energy saving, and biofuels.