bluuebunny/crossref_metadata_2025_split huggingface dataset:
Structural deformation of PVDF nanoweb due to electrospinning behavior affected by solvent ratio
Authors: Hwang Young Jin , Choi Sejin , Kim Han Seong 
Published: April 2018

Abstract
In this study, we investigated the effects of solution characteristics on electrospinning behavior and nanoweb structure. We prepared a polyvinylidene fluoride (PVDF) solution by varying the ratios of N,N-dimethylformamide (DMF) and acetone in the solvent and fabricated nanowebs by electrospinning. We determined the solution characteristics of the PVDF solution with respect to the acetone ratio in the solvent. The effects of the solution characteristics on the electrospinning behavior were confirmed using a high-speed camera. We found significant differences in the electrospinning behavior. Thus, we investigated the effect of this difference on the morphology and structural properties of the fabricated nanoweb.
Geostatistical screening of flood events in the groundwater levels of the diverted inner delta of the Danube River: implications for river bed clogging
Authors: Trásy Balázs , Garamhegyi Tamás , Laczkó-Dobos Péter , Kovács József , Hatvani István Gábor 
Published: April 2018

Abstract
The efficient operation of shallow groundwater (SGW) monitoring networks is crucial to water supply, in-land water protection, agriculture and nature conservation. In the present study, the spatial representativity of such a monitoring network in an area that has been thoroughly impacted by anthropogenic activity (river diversion/damming) is assessed, namely the Szigetköz adjacent to the River Danube. The main aims were to assess the spatial representativity of the SGW monitoring network in different discharge scenarios, and investigate the directional characteristics of this representativity, i.e. establish whether geostatistical anisotropy is present, and investigate how this changes with flooding. After the subtraction of a spatial trend from the time series of 85 shallow groundwater monitoring wells tracking flood events from 2006, 2009 and 2013, variography was conducted on the residuals, and the degree of anisotropy was assessed to explore the spatial autocorrelation structure of the network. Since the raw data proved to be insufficient, an interpolated grid was derived, and the final results were scaled to be representative of the original raw data. It was found that during floods the main direction of the spatial variance of the shallow groundwater monitoring wells alters, from perpendicular to the river to parallel with it for over a period of about two week. However, witht the passing of the flood, this returns to its original orientation in ~2 months. It is likely that this process is related first to the fast removal of clogged riverbed strata by the flood, then to their slower replacement. In addition, the study highlights the importance of assessing the direction of the spatial autocorrelation structure of shallow groundwater monitoring networks, especially if the aim is to derive interpolated maps for the further investigation or modeling of flow.
Dynamics of Almost Periodic Solution for a Delayed Facultative Mutualism Model Involving Negative Feedback Terms
Authors: Yang Li , Guo Zunguang 
Published: April 2018

Abstract
By using some new analytical techniques, modified inequalities and Mawhin’s continuation theorem of coincidence degree theory, some sufficient conditions are obtained for the boundedness of the solution and the existence of at least one positive almost periodic solution of a kind of two-species model of facultative mutualism with time delays. Further, the global asymptotic stability of the positive almost periodic solution of this model is also considered. Some examples and numerical simulations are also given to illustrate the main results of this paper.
Body composition and metabolic health of young male adults with childhood-onset multiple pituitary hormone deficiency after cessation of growth hormone treatment
Authors: Yang Hongbo , Wang Linjie , Qiu Xiaonan , Yan Kemin , Gong Fengying , Zhu Huijuan , Pan Hui 
Published: April 2018

Abstract

Background:
Recombinant human growth hormone (rhGH) replacement therapy is usually stopped after linear growth completion in patients with growth hormone deficiency. In patients with multiple pituitary hormone deficiency (MPHD), the long-term effects of discontinuation of rhGH replacement are unknown.

Methods:
In this study, the anthropometric and metabolic parameters of 24 male patients with adult growth hormone deficiency (AGHD) due to MPHD in childhood after cessation of rhGH therapy for a mean of 7.1 years were measured and compared with 35 age-matched controls. Body composition was evaluated by bioelectrical impedance analysis (BIA).

Results:
In the AGHD group, body mass index (BMI) was significantly increased and 29.2% had obesity. The AGHD group had a 17.7 cm increase in waist circumference (WC). The fat free mass (FFM) was significantly lower in the AGHD group. Both the fat mass (FM) and percentage of fat mass (FM%) were significantly increased in the AGHD group. Both the systolic blood pressure (BP) and diastolic pressure were significantly lower in AGHD group. The lipid profile was generally similar in both groups, except for a decrease of high density lipoprotein-cholesterol (HDL-C) in the AGHD group. There was significant hyperuricemia in the AGHD group.

Conclusions:
Cessation of rhGH leads to a significant increase of FM in early adulthood in male patients with childhood-onset MPHD (CO-MPHD).
Modeling between-subject differences and within-subject changes for long distance runners by age
Authors: Strand Matthew , Nelson Daniel , Grunwald Gary 
Published: April 2018

Abstract
A time-varying predictor in a longitudinal model can be separated into between- and within-subject components. This is important if a researcher is specifically interested in differences between subjects or changes within subjects. If no separation is made, then the effect associated with the time-varying predictor is a combination of the between- and within-subject effects. In this article, running race performances are considered as a nonlinear function of age, for which both absolute and relative difference terms are used to separate between- and within-subject components. Longitudinal data were obtained from 12 consecutive years of the 10-km Bolder Boulder for analysis, for the class of competitive recreational runners. Mixed models were used to fit the data after log transforming the nonlinear model. Results of model fits demonstrated that between-subject differences between ages were somewhat similar to within-subject changes, although the latter tended to change somewhat more slowly, especially after the peak racing ages. For example, the between-subject rate of change for 43 year-old runners was about 1% per year on average (increase in race time), while the within-subject change for a runner of the same age averaged between 0.6 and 0.8% per year.
Law and Development: Lessons from South Korea
Authors: Lee Yong-Shik 
Published: April 2018

Abstract
South Korea has achieved unprecedented economic and social development in history. This country, which had been among the poorest in the world until the early 1960s, became one of the world’s leading economies by the mid-1990s as demonstrated by high per-capita income and world-class industries. In the early 1960s, Korea had much of the characteristics shared by many developing countries today, such as prevalent poverty, low economic productivity, low levels of technology and entrepreneurship in society, insufficient capital, poor endowment of natural resources, over-population in a relatively small territory, and internal political instability and external threats to its security. Korea has successfully overcome these obstacles and achieved economic development within a single generation. Korea’s success in economic development was also accompanied by the advancement of the rule of law and elective democracy by the 1990s. What are the causes of this unprecedented success? This article, applying a recently developed theory of law and development, explores the legal and institutional dimensions of Korea’s development and draws lessons from its successful development.
A parametric linearizing approach for quadratically inequality constrained quadratic programs
Authors: Jiao Hongwei , Chen Rongjiang 
Published: April 2018

Abstract
In this paper we propose a new parametric linearizing approach for globally solving quadratically inequality constrained quadratic programs. By utilizing this approach, we can derive the parametric linear programs relaxation problem of the investigated problem. To accelerate the computational speed of the proposed algorithm, an interval deleting rule is used to reduce the investigated box. The proposed algorithm is convergent to the global optima of the initial problem by subsequently partitioning the initial box and solving a sequence of parametric linear programs relaxation problems. Finally, compared with some existing algorithms, numerical results show higher computational efficiency of the proposed algorithm.
Moving Toward Neo-Totalitarianism: A Political-Sociological Analysis of the Evolution of Administrative Absorption of Society in China
Authors: Kang Xiaoguang 
Published: April 2018

Abstract
China recently promulgated and revised a number of laws, regulations and measures to regulate the nonprofit sector. All these administrative efforts increase support for Chinese nonprofit organizations (NPOs) on the one hand and put unprecedented pressure on them on the other. The seemingly contradictory effects are actually based on the same logic of Administrative Absorption of Society (AAS). This article proposes three phases in the development of AAS: an subconscious phase, a theory-modeling phase, and an institutionalization phase. The institutionalization of AAS has led to the rise of neo-totalitarianism, which is featured by state capitalism, unlimited government, and a mixed ideology of Marxism and Confucianism. Neo-totalitarianism further strengthens AAS and has begun to reshape the relationship between the state and the nonprofit sector. This article analyzes China’s nonprofit policymaking from a sociopolitical perspective, and clarifies the context, the characteristics, and the evolution of laws and policies in the nonprofit sector in macrocosm.
Device for the detection of short trace gas pulses
Authors: Baur Tobias , Schultealbert Caroline , Schütze Andreas , Sauerwald Tilman 
Published: April 2018

Abstract
A device for detection of short gas pulses at very low concentrations is presented. The approach is based on a special temperature modulation technique enabling a differential surface reduction (DSR) measurement of a metal oxide semiconductor (MOS) gas sensor. With this method, the sensor surface is highly covered with oxidized surface states at high temperature (e. g. 400 °C) initially. The temperature is then reduced abruptly to, e. g., 100 °C resulting in a state with strong excess of negative surface charge. Reactions of these surface charges with reducing gases are prevailing and lead to very high sensitivity. For the measurement a dedicated detector (electronics and fluidic system) is presented. The electronics allows a high-resolution conductance measurement of the sensitive layer and accurate temperature control. The fluidic system is examined in terms of peak shape and optimal sensor response via FEM simulations.
Thermo-Efficiencies of a Tubular Combustor Under Different Inlet Conditions
Authors: Topal Ahmet , Turan Onder 
Published: April 2018

Abstract
Exergy efficiencies of the gas turbine become an important issue in recent years and by the way conducted studies regarding to this subject shows that the highest exergy destruction is observed in the combustor and afterburner modules. Therefore it is beneficial to perform analyses that are specific to the combustor exergy efficiency. This study includes the energy

η

c
c

$\left( {{\eta _{cc}}} \right)$

and exergy efficiencies

η

e
x

$\left( {{\eta _{ex}}} \right)$

(thermo-efficiencies) of a tubular combustor for different inlet conditions. Both of the first law and second law efficiencies have been performed on the experimental data and efficiency trends are investigated for changing aerodynamic conditions. Combustor tests have been conducted in an atmospheric test rig and combustor air inlet temperature

T

03

$\left( {{T_{03}}} \right)$

, air mass flow rate

m
˙

a

$\left( {{{\dot m}_a}} \right)$

and fuel mass flow rate

m
˙

f

$\left( {{{\dot m}_f}} \right)$

have been set for the pre-defined conditions. Moreover, exhaust gas emissions were measured by using a gas analyzer system. In the study, highest energy and exergy efficiencies have been obtained at minimum aerodynamic loading condition as 99.0 % and 70.2 % respectively. Moreover efficiencies have the lowest value as 92.7 % and 54.0 % at the maximum aerodynamic loading condition. To summarize, this study aims to show the energy and exergy trends by changing inlet conditions of a tubular combustor in the atmospheric test rig.
Construction of Reliability Single Sampling Plans Based on Exponentiated Exponential Distribution
Authors: Loganathan A. , Gunasekaran M. 
Published: April 2018

Abstract
Reliability sampling plans are used in manufacturing industries to make decisions regarding the disposition of lots based on life testing of the product. Censoring schemes may be adopted in life testing in order to save on time and cost of life testing. The sampling plans are designed based on the respective probability distribution of the lifetime of the products under testing. Several works regarding the design of reliability sampling plans under various censoring schemes are found in the literature. Exponentiated exponential distribution has found applications in reliability and life testing, which is also considered as an alternative in these fields to Weibull and gamma distributions. In this article, reliability single sampling plans are designed under a hybrid censoring scheme, assuming that the lifetime is distributed according to an exponentiated exponential distribution. Plan parameters are determined using binomial probabilities that protect the interests of both producer and consumer. Performance of the exponentiated exponential sampling plans is compared with exponential sampling plans. Selection of the sampling plan for given requirements is illustrated through numerical examples.
Albedo Estimation of Finite-Sized Concrete Specimens
Authors: Sen Sushobhan , Roesler Jeffery , King Daniel 
Published: April 2018

Abstract
Albedo in the context of the Urban Heat Island contributes to the environmental impact of a pavement. Measuring the pavement albedo is difficult as it depends on the size of the specimen, background interference, and variations in the incoming solar spectrum. For this study, the albedo was determined for a 1-m2 concrete slab cast with white cement containing titanium dioxide nanoparticles. The size of the exposed surface of the slab was varied using black paper. To calculate the albedo of these nonstandard specimen sizes, a new testing technique was proposed that uses an albedometer and various geometric conditions, including the exposed slab surface and measurement height. The albedo of the finite-sized concrete specimen was found to range from 0.50 to 0.55, depending on the number of unknowns assumed, with the most reasonable estimate of 0.54. The measured slab albedo from the new method was also verified using a laboratory spectrophotometer. With this proposed methodology to account for background surfaces, the albedo of laboratory-sized concrete specimens of any shape can now be easily measured at various test site locations.
Earthquake Isolation of a Spring-Damper-Friction System with a Convex Friction Distribution
Authors: Wei Biao , Zuo Chengjun , He Xuhui , Hu Qiongyin 
Published: April 2018

Abstract
When a structure is isolated by rubber bearings and viscous dampers, some of those bearings are often destroyed by an earthquake, causing a rough friction interface with large friction coefficients, while other contact surfaces around the damaged bearings are very smooth with smaller friction coefficients. A typical spring-damper-friction isolation system with a convex friction distribution is formed because the viscous dampers and other undamaged bearings can still work normally to provide the damping and restoring forces, respectively. The seismic isolation trend of this system is analyzed by artificially supposing the friction distribution to be theoretically and linearly convex. The calculation results validate that the convex pattern of friction distribution reduces the earthquake isolation efficiency and should be avoided in the actual projects.
Editorial
Authors: Organizadora Comissão , Timm Edgar Zanini , Garin Norberto 
Published: April 2018

Esta edição especial da Revista Ciência em Movimento traz os resumos expandidos, aceitos para publicação, do evento XI SEMINÁRIO DE PESQUISA, VIII SEMINÁRIO DA PÓS-GRADUAÇÃO, V SIMPÓSIO INTERDISCIPLINAR EM REABILITAÇÃO e VII MOSTRA DE AUTORES.O evento ocorreu nos dias 7 e 8 de julho de 2017, no Centro Universitário Metodista – IPA, em Porto Alegre, no estado do Rio Grande do Sul, e teve por tema “Novas perspectivas em reabilitação, inclusão e saúde”, integrando-se, assim, às politicas nacionais de atenção integral em saúde propostas pelo Ministério da Saúde. Abordou-se nesta temática a atenção interdisciplinar na obesidade assim como as práticas integrativas voltadas a reabilitação, o evento contou ainda com oficinas que abordaram temas relacionados a pesquisa qualitativa e quantitativa.
Análise das Políticas Públicas para a Educação Superior no Brasil: o Processo de Formulação e os Grupos de Interesses
Authors: Mugnol Marcio 
Published: April 2018

O presente texto pretende desenvolver uma análise do processo de políticas públicas para a educação superior no Brasil. Para isso, tomase como ponto de partida a discussão da complexidade nas relações entre o Estado e o setor privado de educação e a formação dos grupos econômicos educacionais. Parte-se do princípio que a partir da Lei de diretrizes e Bases da Educação -LDB nº 9394/96 consolidaram-se quatro grandes grupos: particulares, comunitárias, confessionais e filantrópicas, com afinidades de interesses comuns, entretanto destituídos de um comando central e de uma organização sistemática de atuação. Na tentativa de descortinar as dificuldades que estão por trás do modelo de políticas adotado para a educação superior brasileira, abordam-se os mecanismos utilizados pelos diferentes atores institucionais na defesa de seus interesses, bem como os aspectos econômicos e as implicações sociais das políticas colocadas em prática no cenário nacional. Cabe, ainda, destacar que, quando da defesa de interesses comuns, observa-se certa homogeneidade dos grupos no território nacional frente às iniciativas da administração pública que implicam no estabelecimento de regras e de critérios para regulação, avaliação e controle do setor, consideradas por esses próprios atores, limitantes para sua atuação. Palavras-chave: Políticas Públicas. Educação Superior. Avaliação e Regulação. Grupos de Interesse. AbstractThis paper aims to develop an analysis of the process of public policies for higher education in Brazil. For this, it is taken as a starting point the discussion of complexity in relations between the state and the Education private sector and the formationof educational economic groups. It starts from the principle that from the LDB 9394/96 four major groups were consolidated - private, community, religious and philanthropic - with affinities of common interests, however devoid of a central command and an operational systematic organization. In an attempt to uncover the difficulties that lie behind the political model adopted by the Brazilian higher education, we addressed the mechanisms used by the different institutional actors in the defense of their interests as well as the economics and social implications of policies put in place in national scene. It is also worth noting that, regarding thethe defense of common interests, there is a certain homogeneity of the groups in the National Front territory to government initiatives in involving the establishment of rules and criteria for regulation, evaluation and control of the sector, considered by these actors themselves , limiting to its operations. Keywords: Public Policy. College Education. Evaluation and Regulation. Interest Groups.
Escolhas e Percepções de Professores: Livro Didático no Ensino Médio
Authors: Rodrigues Sandra Maria Papin , Bianchini Luciane Guimarães Batistella , Arruda Renata Beloni de , Figliolo Gustavo Javier , Costa Rafaela da 
Published: April 2018

Este trabalho tem como objetivo analisar como os professores de Literatura do Ensino Médio compreendem a utilização, o processo de escolha e as concepções teóricas presentes no livro didático adotado na rede pública estadual do município de Ivaiporã/PR, no triênio 2010- 2013. Caracteriza-se enquanto qualitativo-interpretativo. Como procedimento de coleta de dados utilizou-se: questionário, aplicado a doze professores das seis escolas estaduais do município, a fim de investigar a concepção de leitura e literatura do professor e de que formas o material didático é utilizado. Os resultados indicaram a incorporação do professor aos termos que compõem o discurso oficial e escolarizado do ensino literário e a falta de concepções teóricas claras que orientem a prática didática. Conclui-se que há a necessidade de investimentos em políticas de formação, que auxiliem a promoção de mudanças nas concepções pedagógicas e, consequentemente, na postura do professor frente ao trabalho com a Literatura e o uso do livro didático. Palavras-chave: Ensino. Livro Didático. Prática Pedagógica. AbstractThe aim of this work is to analyze how Literature high school teachers comprehend the use, the choosing process and the textbooks theoretical conceptions adopted in public schools in the municipality of Ivaiporã/PR, between 2010-2013. The paperis characterized as qualitative and interpretative. As data collection procedure a questionnaire was utilized applied to twelve teachers from six public schools of the municipality, in order to investigate the conceptions teachers have on reading and literature and in which ways the textbooks are used. The results show a teachers’ assimilation regarding the official speech in the literary teaching process and the lack of clear theoretical conceptions that guide the teaching practice. We conclude that there is a necessity of investments in education policies with the purpose of helping the promotion of changes in pedagogic conceptions and, as a result of this, in the teachers’ attitude facing the work with literature and the textbook use. Keywords: Teaching. Textbook. Teaching Practice.