bluuebunny/crossref_metadata_2025_split huggingface dataset:
Prevalencia del consumo de marihuana en estudiantes de una institución de educación superior y los factores asociados a su consumo
Authors: Palacios Arenas Martín Oswaldo , Terrones-Saldívar Ma del Carmen 
Published: May 2019

Introducción: La marihuana es la droga ilícita más consumida (OMS). En México ha incrementado el consumo de drogas ilícitas, siendo el consumo de marihuana en estudiantes universitarios de 34.7% en los hombres y de 19.7% en las mujeres. Objetivo: Determinar la prevalencia del consumo de marihuana en universitarios. Metodología: Estudio observacional, prospectivo y de corte transversal. Aplicación de la encuesta “Cuestionario para estudiantes 2012” del Instituto Nacional de Psiquiatría (INP) Dr. Ramón de la Fuente Muñiz a estudiantes de la Lic. de Médico Cirujano de la UAA durante agosto 2016 - enero 2017. Resultados: la prevalencia fue de 23.62% (IC 95% 18.9-28.4), en hombres de 28.3% y en mujeres de 19.5%. La edad de inicio fue de 18.23±1.82 años, similar en ambos sexos. El 18.8% es consumidor experimental y el 4.8%, regular. La prevalencia fue mayor en los semestres 3° y 4° y menor en 9° y 10°. Discusión y conclusión: El consumo de marihuana fue mayor al de la población general de 18-34 años (23.6% versus 12.8%), pero menor al de otras series en estudiantes universitarios (23.6% VS 30%) p=0.014. Los factores asociados fueron problemas físicos o emocionales, baja percepción del riesgo, tolerancia social, consumo de sustancias legales y trastorno de ansiedad (p<0.05). Se propone aplicar la encuesta en otras poblaciones de universitarios para comparar diferencias en el patrón de consumo y los factores asociados. Se sugiere generar estrategias de tamizaje, prevención y manejo de adicciones en las poblaciones con factores de riesgo. LUXMÉDICA AÑO 14, NÚMERO 41, MAYO-AGOSTO 2019, PP 21-30
Nuevas agendas urbanas: Alineación con los Objetivos de Desarrollo Sostenible e integración de las organizaciones no gubernamentales ONG y Sociedad Civil. Estrategia y objetivos de ICOMOS
Authors: Alonso José Alberto 
Published: May 2019

En 2030, 6 de cada 10 personas vivirán en zonas urbanas. La labor de las organizaciones no gubernamentales y sociedad civil en la toma de decisiones relacionadas con las nuevas agendas urbanas y el patrimonio cultural será protagonista en el futuro. ICOMOS desarrolla una estrategia para alinearse, implementar y monitorizar el desarrollo de los ODS.
ANALISIS PERILAKU PENGGUNA TEKNOLOGI ATAS PENERIMAAN LAYANAN E-SAMSAT MENGGUNAKAN MODEL TAM DAN TPB (Studi Kasus Pada SAMSAT Wilayah Kabupaten Subang)
Authors: Nurhamidah Nurhamidah , Kurniawan Asep , Umiyati Indah 
Published: May 2019

This study aims to examine and analyze the model of technology user behavior on the acceptance of an information system on e-samsat Application system. With sample number 100 respondents with sampling using incidental sampling technique. Hypothesis testing used is Structural Equation Modeling (SEM). Based on the results say that Perceived Ease of Use variable has a positive and significant effect on Perceived of Usefulness and Trust. The Perceived of Usefulness variable has a positive and significant effect on Attitude and Behavior Intention. Trust variables have a positive and significant influence on Perceived of Usefulness, Perceived Behavior Control, Attitude, Perceived of Risk and Subjective Norm. Perceived Behavior Control and Attitude variables have positive and significant effect on Behavior Intention.
FAKTOR-FAKTOR YANG MEMPENGARUHI PERSISTENSI LABA (Studi Kasus pada Perusahaan Property dan Real Estate yang Terdaftar di Bursa Efek Indonesia Tahun 2013-2015)
Authors: Nuraeni Risma , Mulyati Sri , Putri Trisandi Eka 
Published: May 2019

audit, dan konsentrasi pasar terhadap persistensi laba. Data yang digunakan adalah data perusahaan property dan real estate yang terdaftar di Bursa Efek Indonesia (BEI) pada tahun 2013-2015.
Sampel dipilih dengan menggunakan motode purposive sampling. Sampel yang sesuai kriteria diperoleh sebanyak 32 perusahaan selama periode pengamatan 2013-2015, jadi jumlah akhir data observasi yaitu 96 (32 x 3). Kemudian data dianalisis dengan menggunakan model analisis regresi data panel dengan aplikasi EViews 9.
Hasil penelitian menunjukan bahwa kepemilikan manajerial tidak berpengaruh terhadap persistensi laba, karena sedikitnya persentasi kepemilikan saham oleh manajerial. Ukuran perusahaan berpengaruh negatif terhadap persistensi laba, sedangkan leverage, fee audit dan konsentrasi pasar berpengaruh positif terhadap persistensi laba. Variabel kepemilikan manajerial, ukuran perusahaan, leverage, fee audit dan konsentrasi pasar secara bersamasama berpengaruh terhadap persistensi laba
A Uniform Retrieval Analysis of Ultra-cool Dwarfs. III. Properties of Y Dwarfs
Authors: Zalesky Joseph A. , Line Michael R. , Schneider Adam C. , Patience Jennifer 
Published: May 2019

Abstract
Ultra-cool brown dwarfs offer a unique window into understanding substellar atmospheric physics and chemistry. Their strong molecular absorption bands at infrared wavelengths, Jupiter-like radii, cool temperatures, and lack of complicating stellar irradiation make them ideal test beds for understanding Jovian-like atmospheres. Here, we report the findings of a uniform atmospheric retrieval analysis on a set of 14 Y- and T-type dwarfs observed with the Hubble Space Telescope Wide Field Camera 3 instrument. From our retrieval analysis, we find the temperature structures to be largely consistent with radiative-convective equilibrium in most objects. We also determine the abundances of water, methane, and ammonia, as well as upper limits on the alkali metals sodium and potassium. The constraints on water and methane are consistent with predictions from chemical equilibrium models, while those of ammonia may be affected by vertical disequilibrium mixing, consistent with previous works. Our key result stems from the constraints on the alkali metal abundances where we find their continued depletion with decreasing effective temperature, consistent with the trend identified in a previous retrieval analysis on a sample of slightly warmer late T-dwarfs in Line et al. (2017). These constraints show that the previously observed Y–J color trend across the T/Y transition is most likely due to the depletion of these metals, in accordance with predictions from equilibrium condensate rainout chemistry. Finally, we simulate future James Webb Space Telescope observations of ultra-cool dwarfs and find that the Near Infrared Spectrometer (NIRSpec) PRISM offers the best chance at developing high-precision constraints on fundamental atmospheric characteristics.
Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. X. Optical Variability Characteristics
Authors: Lu Kai-Xing , Huang Ying-Ke , Zhang Zhi-Xiang , Wang Kai , Du Pu , Hu Chen , Xiao Ming , Li Yan-Rong , Bai Jin-Ming , Bian Wei-Hao , Yuan Ye-Fei , Ho Luis C. , Wang Jian-Min ,   (SEAMBH collaboration)
Published: May 2019

Abstract
We compiled a sample of 73 active galactic nuclei (AGNs) with reverberation mapping (RM) observations from RM campaigns, including our ongoing campaign of monitoring super-Eddington accreting massive black holes (BHs). This sample covers a large range of BH mass

, dimensionless accretion rates

, and 5100 Å luminosity

, allowing us to systematically study the AGN variability and their relations with BH mass, accretion rates, and optical luminosity. We employed the damped random walk (DRW) model to delineate the optical variability of continuum at 5100 Å and obtained damped variability timescale (

) and amplitude (

) using a Markov Chain Monte Carlo method. We also estimated the traditional variability amplitudes (

), which provide a model-independent measure and therefore are used to test the DRW results. We found that AGN variability characteristics are generally correlated with

. These correlations are smooth from sub-Eddington to super-Eddington accretion AGNs, probably implying that the AGN variability may be caused by the same physical mechanism.
A Mechanism for the Triple-ridge Emission Structure of AGN Jets
Authors: Ogihara Taiki , Takahashi Kazuya , Toma Kenji 
Published: May 2019

Abstract
Recent radio very long baseline interferometry observations of the relativistic jet in the M87 radio galaxy have shown a triple-ridge structure that consists of the conventional limb-brightened feature and a central narrow ridge. Motivated by these observations, we examine a steady axisymmetric force-free model of a jet driven by the central black hole (BH) with its electromagnetic structure being consistent with general relativistic magnetohydrodynamic simulations, and find that it can produce triple-ridge images even if we assume a simple Gaussian distribution of emitting electrons at the base of the jet. We show that the fluid velocity field associated with the electromagnetic field produces the central ridge component due to the relativistic beaming effect, while the limb-brightened feature arises due to a strong magnetic field around the jet edge that also induces the electrons to be dense there. We also show that the computed image strongly depends on the electromagnetic field structure, viewing angle, and parameters related to the electrons’ spatial distribution at the jet base. This study will help constrain the non-thermal electron injection mechanism of BH jets and be complementary to theoretical analyses of the upcoming data of the Event Horizon Telescope.
Parent-Mediated Interventions for Children With Autism Spectrum Disorder: A Systematic Review
Authors: Althoff Colleen E. , Dammann Caitlin P. , Hope Sarah J. , Ausderau Karla K. 
Published: May 2019

Abstract
OBJECTIVE. The purpose of this systematic review was to evaluate the evidence for the effectiveness of parent-mediated interventions on occupational performance of children with autism spectrum disorder (ASD).
METHOD. We conducted a search of academic databases using terms such as autism spectrum disorder, parent, caregiver, and intervention. Five hundred eighty-two articles were reviewed, and 109 were selected for full-text review. The final analysis included 13 articles.
RESULTS. Strong evidence was found for the efficacy of parent-mediated intervention for increasing child joint attention. Moderate evidence was found for the improvement of language scores, expressive language, nonverbal communication, initiation and response to interaction, behavior, play, adaptive functioning, ASD symptoms, and social communication.
CONCLUSION. This systematic review suggests that parent-mediated interventions for children with ASD can improve various aspects of communication and ASD symptoms, with emerging support for occupational performance. Occupational therapy practitioners are well suited to facilitate these interventions to support families with children with autism.
EDITORIAL
Authors: Vargas J. V. C. 
Published: May 2019

This special issue of RETERM – Thermal Engineering is the continuation of the brazilian thermal science community’s effort to bridge the gap between the scientific (academia) and industrial communities. For that, the journal continues to be divided in two main sections: science and technology. The former is directed to publish complete articles that deal with fundamental advances in heat transfer and fluid mechanics, new physical insights, and novel experimental and analytical methods that have great appeal for the industry community, and the latter is designed to comprise informative articles that document modern engineering applications, or general advances in industry. Particularly, in this special issue, the best articles written in English language, presented at the I Brazilian Congress of R&D in Oil and Gas, held in Natal, RN, between November 25th and 28th, 2001, were selected by the Associate Technical Editors of RETERM, according to the scientific criteria of the journal. This way, RETERM specifically addresses the Oil and Natural Gas sector, that has been fomented by the existing great needs and by the existence of CTPETRO – Brazilian National Plan of Science and Technology for the Oil and Natural Gas Sector, that plays a role of crucial importance on fomenting scientific research in Brazil. The institutional support from the Brazilian Society of Mechanical Sciences (ABCM), and from the Brazilian Society of Industrial Machinery and Equipments (ABIMAQ), continues to strengthen our belief in the success of this enterprise. To open a perspective to the maintainance and continuity of RETERM, we invite the readers from the industrial community to contact our staff for subscriptions and publicity in RETERM. For the next issues we continue to welcome technical articles from both the scientific and the industrial communities to either section of RETERM, and contributions to the other sections of the journal, and suggestions for new sections as well. We also welcome response and comments from our readers that will eventually help the success of RETERM.
Cidadania e políticas públicas no contexto do programa de educação previdenciária - PEP
Authors: Magalhaes Guilherme Fernandes , Alves Wederson Marcos 
Published: May 2019

O presente artigo é parte do trabalho de pesquisa desenvolvido dentro do programa de Mestrado Profissional em Tecnologia, Ambiente e Sociedade – TAS da Universidade Federal dos Vales do Mucuri e Jequitinhonha – UFVJM, que tem por objetivo investigar o Programa de Educação Previdenciária – PEP, executado pelo Instituto Nacional do Seguro Social - INSS, como disseminador de informações dos direitos previdenciários. O tema ainda aborda esta política pública e seus reflexos para garantia da renda da população, suas implicações para a promoção da cidadania e os conceitos que emolduram o reconhecimento de direitos aos benefícios. Apresenta-se também, o contexto histórico e a evolução da Previdência Social no Brasil, bem com as garantias constitucionais do direito à informação e do princípio da publicidade na administração púbica. O estudo ainda revela o quantitativo e as diferentes modalidades de ações educacionais, desenvolvidas pelo programa, relativo aos anos de 2015 a 2016, propondo um debate sobre a sua efetividade. Mesmo assim, verifica-se uma relevante carência de informações, da legislação previdência brasileira, por parte dos seus cidadãos, fator que o PEP procura solucionar.
Morosidade processual e a responsabilidade civil do Estado
Authors: Bontempi Alessandro , Marquesi Roberto Wagner 
Published: May 2019

Com a promulgação da Emenda Constitucional nº 45/2004 foi incluído na Constituição Federal, no rol dos direitos fundamentais, a razoável duração do processo cujo objetivo é alcançar celeridade no tramite processual. Contudo, passados 13 anos da publicação da Emenda essa celeridade ainda se encontra longe do razoável. Assim, neste trabalho, dois focos foram abordados. Primeiramente, busca-se na literatura nacional e no direito comparado o conceito de razoável duração do processo. Em seguida destacamos no ordenamento nacional e no estrangeiro, as principais posições doutrinárias e jurisprudenciais a cerca da responsabilização objetiva do Estado pelo não cumprimento da razoável duração do processo, além de teses contrárias a esta. Para demonstrar que a promessa constitucional ainda é uma distante realidade no Brasil, foram pesquisados dados que possibilitam estimar o tempo médio para baixa de um processo em primeira instância, comparando estes dados com ordenamentos estrangeiros.
Príncipe Andrei Bolkónski: um herói schopenhaueriano
Authors: Carné Pedro 
Published: May 2019

O objetivo deste artigo consiste na elaboração da hipótese interpretativa segundo a qual o príncipe Andrei Bolkónski, um dos principais personagens do livro Guerra e Paz, de Liev Tolstói, pode ser considerado um herói schopenhaueriano.
Room temperature photoluminescence lifetime for the near-band-edge emission of epitaxial and ion-implanted GaN on GaN structures
Authors: Chichibu Shigefusa F. , Shima Kohei , Kojima Kazunobu , Takashima Shin-ya , Ueno Katsunori , Edo Masaharu , Iguchi Hiroko , Narita Tetsuo , Kataoka Keita , Ishibashi Shoji , Uedono Akira 
Published: May 2019

Abstract
For accelerating the development of GaN power-switching devices, current knowledge on the origins and dynamic properties of the major intrinsic nonradiative recombination centers (NRCs) in Mg-doped GaN (GaN:Mg) are reviewed, as lightly to heavily doped p-type planar GaN segments are required but certain compensating defects including NRCs hinder their formation. The results of complementary time-resolved photoluminescence and positron annihilation spectroscopy measurements on the epitaxial and ion-implanted GaN:Mg formed on low dislocation density GaN substrates indicate the following: major intrinsic NRCs are the clusters of Ga vacancies (VGas) and N vacancies (VNs), namely VGa(VN)2 in the epitaxial GaN:Mg and (VGa)3(VN)3 in the ion-implanted GaN:Mg after appropriate thermal annealings. The minimum electron capture-cross-sections of VGa(VN)2 and (VGa)3(VN)3 are commonly the middle of 10−13 cm2 at 300 K, which is approximately four times larger than the hole capture-cross-section of the major intrinsic NRCs in n-type GaN, namely VGaVN divacancies, being 7 × 10−14 cm2.
Parametric optimization of depletion-type Si micro-ring modulator performances
Authors: Kim Younghyun , Jo Youngkwan , Kim Minkyu , Yu Byung-Min , Mai Christian , Lischke Stefan , Zimmermann Lars , Choi Woo-Young 
Published: May 2019

Abstract
We present the modulation performance optimization process for a depletion-type Si micro-ring modulator (MRM). Our optimization process is based on two different types of model parameters for ring resonator decay time constants derived from the coupled-mode theory. The MRM figure of merit (FOM) is defined for target data rates considering both optical modulation amplitude and the modulation frequency response based on two model parameters. The parametric optimization for modulator output eye diagrams is achieved by analyzing the FOM with MRM simulation with varying two model parameters. In addition, we demonstrate the optimized eye diagram can be achieved with our optimization process and the measurement results agree well with the simulation result.
Clinicopathological characteristics and prognosis of pulmonary large cell neuroendocrine carcinoma aged ≥65 years
Authors: Cao Ling , Zhao Ling , Wang Min , Zhang Xu he , Yang Zhu-chun , Liu Yun-peng 
Published: May 2019

Objective
The present study was designed to better characterize the clinicopathological features and prognosis in patients aged ≥65 years with pulmonary large cell neuroendocrine carcinoma (LCNEC).

Methods
Eligible patients with pulmonary LCNEC were retrieved from the Surveillance, Epidemiology, and End Results database between January 2004 and December 2013. The primary endpoints included cancer-specific survival (CSS) and overall survival (OS).

Results
Data of 1,619 eligible patients with pulmonary LCNEC were collected. These patients were subsequently categorized into two groups: 890 patients in the older group (age ≥65 years), and 729 in the younger group (age <65 years). More patients were of white ethnicity, stage I, married, and with tumor size <5 cm in the older group in comparison to the younger group. However, there were a significantly lower proportion of patients undergoing surgery, chemotherapy, and radiotherapy in the older group. The 5-year CSS rates of the younger group and older group were 23.94% and 17.94% (P = 0.00031), respectively, and the 5-year OS rates were 20.51% and 13.47% (P < 0.0001), respectively. Multivariate analyses indicated that older age (CSS: HR 1.20, 95% CI [1.07–1.36], P = 0.0024; OS: HR 1.26, 95% CI [1.12–1.41], P < 0.0001) was an independent risk factor for poor prognosis. The mortality risk of the elderly increased in almost every subgroup, especially in OS. Finally, significant predictors for better OS and CSS in patients over age 65 included tumor size <5 cm, lower stage, and receiving surgery, chemotherapy, or radiotherapy.

Conclusion
The prognosis of patients aged ≥65 years with pulmonary LCNEC was worse than that of younger patients. However, active and effective therapy could significantly improve the survival of older patients with pulmonary LCNEC.
Evidence for low prevalence of ranaviruses in Ontario, Canada’s freshwater turtle population
Authors: Carstairs Sue J. 
Published: May 2019

BackgroundOntario, Canada is home to eight native species of turtles; all eight are federally listed as Species At Risk, due to anthropogenic threats. However, until recently, reports of infectious disease have been lacking. Ranavirus is seen as an emerging threat for ectotherms globally, with mass die-offs most often reported in amphibians. Ranavirus has been detected in Ontario’s amphibian populations, can be transmitted via water, and can be transmitted from amphibians to turtles. However, no studies on the prevalence of this virus in Ontario’s turtles have previously been carried out. With recent reports of two confirmed positive case of ranavirus in turtles in Ontario, a knowledge of the ecology of ranavirus in Ontario’s turtles has become even more important. This study estimates the prevalence of ranavirus in Ontario’s turtles, and investigates the hypothesis that this is a newly emergent disease.MethodsSixty-three samples were tested for ranavirus via PCR. These included a variety of turtle species, across their home range in Southern Ontario. Fifty-two of the samples originated from the liver and kidney of turtles who had succumbed to traumatic injuries after being admitted to the Ontario Turtle Conservation Centre; ten of the samples were taken from cloacal swabs, lesion swabs, or tail clips collected from live turtles showing signs of clinical disease. One of the live turtles was later euthanized for humane reasons and PCR was also carried out on the liver/kidney.ResultsNone of the 63 samples were found to be positive for ranavirus via PCR. The zero prevalence found in this study translates into a population prevalence estimate of less than 5%, with no change in prevalence from 2014–2018.DiscussionThis is the first report on the prevalence of ranavirus in Ontario’s turtles, and will help build an understanding of the ecology of this virus in Ontario. Ranavirus has historically been underreported in reptiles, but there has been an increase in global reports recently, most likely due to increased awareness. A carrier state is thought to exist in reptiles which makes surveillance in the population via random sampling a viable method of detection of prevalence. The first report of ranavirus in Ontario turtles occurred in 2018. This study suggests a continued low population prevalence for the years 2014–2018, however. Ongoing surveillance is necessary, as well as investigation of the eDNA presence in waterways as compared to the PCR of resident turtles, to further understand the sensitivity of these species to ranavirus infection. The utilization of qPCR would be helpful, to better quantify any positives encountered.