bluuebunny/crossref_metadata_2025_split huggingface dataset:
Low-dose CT pulmonary angiography on a 15-year-old CT scanner: a feasibility study
Authors: Kaup Moritz , Gruber-Rouh Tatjana , Scholtz Jan E , Albrecht Moritz H , Bucher Andreas , Frellesen Claudia , Vogl Thomas J , Beeres Martin 
Published: January 2017

Background Computed tomography (CT) low-dose (LD) imaging is used to lower radiation exposure, especially in vascular imaging; in current literature, this is mostly on latest generation high-end CT systems. Purpose To evaluate the effects of reduced tube current on objective and subjective image quality of a 15-year-old 16-slice CT system for pulmonary angiography (CTPA). Material and Methods CTPA scans from 60 prospectively randomized patients (28 men, 32 women) were examined in this study on a 15-year-old 16-slice CT scanner system. Standard CT (SD) settings were 100 kV and 150 mAs, LD settings were 100 kV and 50 mAs. Attenuation of the pulmonary trunk, various anatomic landmarks, and image noise were quantitatively measured; contrast-to-noise ratios (CNR) and signal-to-noise ratios (SNR) were calculated. Three independent blinded radiologists subjectively rated each image series using a 5-point grading scale. Results CT dose index (CTDI) in the LD series was 66.46% lower compared to the SD settings (2.49 ± 0.55 mGy versus 7.42 ± 1.17 mGy). Attenuation of the pulmonary trunk showed similar results for both series (SD 409.55 ± 91.04 HU; LD 380.43 HU ± 93.11 HU; P = 0.768). Subjective image analysis showed no significant differences between SD and LD settings regarding the suitability for detection of central and peripheral PE (central SD/LD, 4.88; intra-class correlation coefficients [ICC], 0.894/4.83; ICC, 0.745; peripheral SD/LD, 4.70; ICC, 0.943/4.57; ICC, 0.919; all P > 0.4). Conclusion The LD protocol, on a 15-year-old CT scanner system without current high-end hardware or post-processing tools, led to a dose reduction of approximately 67% with similar subjective image quality and delineation of central and peripheral pulmonary arteries.
Trends in Collection of Value Added Tax in West Bengal: A Commentary
Authors: Dwivedi H. K. , Sinha Sudip Kumar 
Published: January 2017

As per constitutional provisions of Indian federal finance, value added tax (VAT) (and sales tax) is the main source of revenue for the state government. Value added tax (including sales tax) collected by the Directorate of Commercial Taxes, West Bengal, accounts for approximately 62 per cent of state’s own tax revenue (SOTR). Studies on collection of taxes suggest that revenue from all taxes not only depends directly on the nature and growth of the tax base but depends also on other factors such as economic reforms, global and national economic condition and tax effort of the tax collecting department. The motivation of this article is to try to analyze the nature of the trends in collection of VAT in West Bengal during recent years and to find out the effect of different explanatory variables on collection of VAT. JEL Classification: H26, H71, H3
Promyelocytic extracellular chromatin exacerbates coagulation and fibrinolysis in acute promyelocytic leukemia
Authors: Cao Muhua , Li Tao , He Zhangxiu , Wang Lixiu , Yang Xiaoyan , Kou Yan , Zou Lili , Dong Xue , Novakovic Valerie A. , Bi Yayan , Kou Junjie , Yu Bo , Fang Shaohong , Wang Jinghua , Zhou Jin , Shi Jialan 
Published: January 2017

Key Points
ATRA promotes ETosis leading to procoagulant promyelocytic extracellular chromatin. Extracellular chromatin fosters excess thrombin production and fibrin deposition, increases plasmin, and causes endothelium damage.
Microcystic adnexal carcinoma (MAC)-like squamous cell carcinoma as a differential diagnosis to Bell's palsy: Review of guidelines for refractory facial nerve palsy
Authors: Mueller S. K. , Iro H. , Lell M. , Seifert F. , Bohr C. , Scherl C. , Agaimy A. , Traxdorf M. 
Published: January 2017

Background Bell's palsy is the most common cause of facial paralysis worldwide and the most common disorder of the cranial nerves. It is a diagnosis of exclusion, accounting for 60–75% of all acquired peripheral facial nerve palsies. Our case shows the first case of a microcystic adnexal carcinoma-like squamous cell carcinoma as a cause of facial nerve palsy. Case presentation The patient, a 70-year-old Caucasian male, experienced subsequent functional impairment of the trigeminal and the glossopharyngeal nerve about 1½ years after refractory facial nerve palsy. An extensive clinical work-up and tissue biopsy of the surrounding parotid gland tissue was not able to determine the cause of the paralysis. Primary infiltration of the facial nerve with subsequent spreading to the trigeminal and glossopharyngeal nerve via neuroanastomoses was suspected. After discussing options with the patient, the main stem of the facial nerve was resected to ascertain the diagnosis of MAC-like squamous cell carcinoma, and radiochemotherapy was subsequently started. Conclusion This case report shows that even rare neoplastic etiologies should be considered as a cause of refractory facial nerve palsy and that it is necessary to perform an extended diagnostic work-up to ascertain the diagnosis. This includes high-resolution MRI imaging and, as perilesional parotid biopsies might be inadequate for rare cases like ours, consideration of a direct nerve biopsy to establish the right diagnosis.
Complete genome sequence of the salmonella enterica serovar enteritidis bacteriophages fSE1C and fSE4C isolated from food matrices
Authors: Santander Javier , Vasquez Jose I. , Segovia Cristopher , Santos Leonardo , Turra Gabriel , Huber Karen , Robeson James 
Published: January 2017

AbstractSalmonella enterica serovar Enteritidis is one of the most common causes of Salmonellosis worldwide. Utilization of bacteriophages as prophylactic agents is a practical solution to prevent Salmonellosis in ready-to-eat products. Shelf stability is one of the desirable properties for prophylactic bacteriophages. Here, we describe the phenotype, genome, and phylogeny of fSE1C and fSE4S Salmonella bacteriophages. fSE1C and fSE4S were previously isolated from pickle sauce and ground beef respectively and selected for their significant shelf stability. fSE1C and fSE4S showed a broad S. enterica serovar range, infecting several Salmonella serovars. The viral particles showed an icosahedral head structure and flexible tail, a typical morphology of the Siphoviridae family. fSE1C and fSE4C genomes consists of dsDNA of 41,720 bp and 41,768 bp with 49.73% and 49.78% G + C, respectively. Comparative genomic analysis reveals a mosaic relationship between S. enterica serovar Enteritidis phages isolated from Valparaiso, Chile.
“Why Shall Wee Have Peace to Bee Made Slaves”: Indian Surrenderers During and After King Philip’s War
Authors: Fisher Linford D. 
Published: January 2017

Abstract
This article is an investigation of the treatment of surrenderers in King Philip’s War (1675–76) in New England, particularly with regard to enslavement. Fear of slavery was a tangible, deep concern for most New England natives involved in the war. Threats of enslavement influenced the involvement of native individuals and groups, driving some into deeper “rebellion” and others to surrender. Each colony had differing policies for surrendering natives, but generally the hundreds of surrenderers received far worse treatment than they expected, facing execution, overseas enslavement, local limited-term enslavement, and forced relocation. Perhaps the most fascinating element of this saga is the degree to which English-allied native leaders worked to influence the treatment of surrenderers, helping them to escape to New York, harboring runaways, and in other ways trying to keep natives out of English households.
Would You Like to Upgrade to a Premium Room? Evaluating the Benefit of Offering Standby Upgrades
Authors: Yılmaz Övünç , Pekgün Pelin , Ferguson Mark 
Published: January 2017

An important challenge faced by hotels is how to set their premium room price differential over their standard rooms and how to manage the upsell process. Standby upgrades, where the customer is only charged if the upgrade is available at the time of arrival, is one technique that has become increasingly popular in practice for monetizing the premium room inventory that may otherwise go unused. We develop a model of premium room and standby upgrade pricing under an uncertain market size and examine how and when standby upgrades can provide additional revenue for a hotel. When guests are myopic, we show that standby upgrades can be used as a powerful price discrimination tool, especially for hotel properties with high premium-to-standard room ratios. When guests are strategic, the benefit of standby upgrades is significantly diminished; we show that standby upgrades only increase revenue when the hotel property has a low premium-to-standard room ratio. Our findings thus provide guidance on the hotel types and environments that are most suitable for standby upgrades. The online appendix is available at https://doi.org/10.1287/msom.2016.0596 .
The general solution of impulsive systems with Riemann-Liouville fractional derivatives
Authors: Zhang Xianmin , Ding Wenbin , Peng Hui , Liu Zuohua , Shu Tong 
Published: January 2017

AbstractIn this paper, we study a kind of fractional differential system with impulsive effect and find the formula of general solution for the impulsive fractional-order system by analysis of the limit case (as impulse tends to zero). The obtained result shows that the deviation caused by impulses for fractional-order system is undetermined. An example is also provided to illustrate the result.
Rough semigroups and rough fuzzy semigroups based on fuzzy ideals
Authors: Wang Qiumei , Zhan Jianming 
Published: January 2017

Abstract
In this paper, we firstly introduce a special congruence relation U(μ, t) induced by a fuzzy ideal μ in a semigroup S. Then we define the lower and upper approximations based on a fuzzy ideal in semigroups. We can establish rough semigroups, rough ideals, rough prime ideals, rough fuzzy semigroups, rough fuzzy ideals and rough fuzzy prime ideals according to the definitions of rough sets and rough fuzzy sets. Furthermore, we shall consider the relationships among semigroups and rough semigroups, fuzzy semigroups and rough fuzzy semigroups, and some relative properties are also discussed.
Plausible role of nanoparticle contamination in the synthesis and properties of organic electronic materials
Authors: Ananikov Valentine P. 
Published: January 2017

AbstractTraceless transition metal catalysis (Pd, Ni, Cu, etc.) is very difficult to achieve. Metal contamination in the synthesized products is unavoidable and the most important questions are: How to control metal impurities? What amount of metal impurities can be tolerated? What is the influence of metal impurities? In this brief review, the plausible origins of nanoparticle contamination are discussed in the framework of catalytic synthesis of organic electronic materials. Key factors responsible for increasing the probability of contamination are considered from the point of view of catalytic reaction mechanisms. The purity of the catalyst may greatly affect the molecular weight of a polymer, reaction yield, selectivity and several other parameters. Metal contamination in the final polymeric products may induce some changes in the electric conductivity, charge transport properties, photovoltaic performance and other important parameters.
Representações sociais do envelhecimento e do rejuvenescimento para mulheres que adotam práticas de rejuvenescimento
Authors: Castro Amanda , Antunes Larissa , Maldonado Brito Annie Mehes , Camargo Brigido Vizeu 
Published: January 2017

Esta pesquisa teve por objetivo compreender as representações sociais do envelhecimento e do rejuvenescimento para mulheres que adotam práticas de rejuvenescimento. Participaram 40 mulheres entre 30 e 60 anos, sendo que 20 utilizavam práticas não invasivas e 20 faziam uso de práticas invasivas e minimamente invasivas. Foi empregada entrevista semidiretiva e não estruturada para investigação das representações sociais do envelhecimento e do rejuvenescimento e questionário contendo questões de caracterização das participantes. A análise dos dados empregou estatística descritiva e relacional. Os resultados indicaram que as representações sociais do envelhecimento e do rejuvenescimento apresentam elementos distintos, de acordo com o tipo de prática adotada. A pressão social e a cobrança das mulheres surgem como elementos representacionais que justificam a adoção de práticas de rejuvenescimento. Por fim, o envelhecimento é apresentado como uma condição subjetiva.
Motivos para evasão, vivências acadêmicas e adaptabilidade de carreira em universitários
Authors: Ambiel Rodolfo Augusto Matteo , Dos Santos Acácia Aparecida Angeli , Dalbosco Simone Nenê Portela 
Published: January 2017

O estudo tem como objetivo avaliar se a vivência acadêmica e a adaptabilidade de carreira estão associadas aos motivos para evasão no ensino superior, conforme o curso e a etapa de formação. A amostra foi de 153 universitários de uma instituição particular localizada em uma cidade no interior de São Paulo e foram utilizados os instrumentos Questionário de Vivência Acadêmica-Reduzido (QVA-r), Escala de Adaptabilidade de Carreira (CAAS) e Escala de Motivos para Evasão do Ensino Superior (M-ES). Os dados foram analisados através de estatísticas descritivas, correlação de Pearson e regressão linear múltipla. Os resultados mostraram que o modelo incluindo os fatores do QVA-r e da CAAS simultaneamente é o mais adequado na predição dos fatores da M-ES de motivos relacionados à Carreira, ao Desempenho Acadêmico, ao Interpessoal e à Autonomia, explicando entre 14,3% e 19% da variância. Os resultados são discutidos à luz da teoria e de suas implicações práticas.
Outcome Questionnaire (oq-45.2): avaliação das propriedades psicométricas via modelo bifactor e tri
Authors: Da Silva Sonia Maria , Alves Iraí Cristina Boccato , Peixoto Evandro Morais , Rocha Glaucia Mitsuko Ataka , Nakano Tatiana De Cássia 
Published: January 2017

O objetivo foi avaliar as propriedades psicométricas da versão brasileira do Outcome Questionnaire-OQ-45.2, instrumento designado a avaliar o progresso de pacientes em psicoterapia. Comparou-se o ajuste de diferentes modelos de medidas propostos ao OQ-45.2 através da Análise Fatorial Confirmatória e verificou-se os parâmetros dos itens e dos participantes por meio do Modelo de Resposta Gradual. 419 adultos responderam ao instrumento (32,18±14,3; 62,8%, mulheres). Os resultados demonstram a adequação da estrutura Bifactor composta por três fatores específicos (desconforto subjetivo, relações interpessoais e desempenho do papel social) e um fator geral (desajustamento global) quando comparados aos outros modelos: unifatorial e com três fatores correlacionados. Verificou-se a invariância da estrutura interna do OQ-45.2 ao avaliar homens e mulheres. Em relação às propriedades dos itens (dificuldade e ajustamento) foram obtidos parâmetros psicométricos apropriados para a avaliação de resultados psicoterapêuticos. Conclui-se que o OQ-45.2 é uma medida adequada para avaliação destas características na população brasileira.
O “sujeito científico” no sistema filosófico de A. Badiou: o caso da biolinguística chomskyana
Authors: Madarasz Norman R. 
Published: January 2017

Neste artigo argumenta-se que o programa biolinguístico de Noam Chomsky contém uma ontologia subjacente cuja implicação diz respeito a uma transformação radical da noção de sujeito e da categoria de identidade que lhe sustenta, assim como da noção kuhniana de ciência normal. De fato, um dos desafios de uma ontologia estruturalista da qual Chomsky é pessoalmente distante, mas formalmente próximo, é de transpor as teses sobre o real da questão do ser e do acontecimento para um realismo, campo que proporciona as condições de criação de um sujeito diferencial e genérico pela geração de estruturas sintáticas elementares projetadas em séries de palavras. Desta forma, a capacidade linguística auxilia na produção e na criação da identidade. Argumenta-se que o programa biolinguístico é ainda revolucionário no sentido em que despertou e perpetuou uma nova figura subjetiva da ciência, isto é, uma figura emancipadora do sujeito pensado pela ciência em relação à qual uma ontologia fundamental só pode se adequar na base da multiplicidade, tal como tem feito Alain Badiou.
Determination of the Forward Dissolution Rate for International Simple Glass in Alkaline Solutions
Authors: Elia Alice , Ferrand Karine , Lemmens Karel 
Published: January 2017

AbstractThe International Simple Glass (ISG) is considered as reference benchmark glass and is used in the frame of an international collaboration for the study of the dissolution mechanisms of high-level vitrified nuclear waste.In this work the forward dissolution rate of the ISG was determined in different alkaline solutions, as a simulation of the disposal conditions foreseen by the Belgian concept for geological disposal of vitrified waste. The determination of the forward dissolution rate was done by measuring the Si released from the glass in solution in tests performed at 30 °C in four different KOH solutions with pH varying from 9 to 14 and in artificial cementitious water at pH 13.5.The forward dissolution rates determined for the ISG in high pH solutions are in good agreement with the results obtained for a lower pH range.The rates obtained in this study, moreover, were compared with the rates measured in the same conditions for SON68 glass from a previous work. The values obtained for the two glasses are comparable in artificial cementitious water and in KOH at moderately alkaline pH. At higher pH, ISG glass shows a lower forward dissolution rate with respect to SON68 (0.20 g•m−2•d for ISG and 0.35 g•m−2 d for SON68 at pH 14).
Trastornos mentales en estudiantes de medicina humana en tres universidades de Lambayeque, Perú.
Authors: Sánchez-Marín César , Chichón-Peralta Jorge , Leon-Jimenez Franco , Alipazaga-Pérez Pedro 
Published: January 2017

Los trastornos de salud mental son un problema muy frecuente en la población actual, sobre todo en alumnos de educación superior que, de acuerdo a algunos estudios, pueden mostrar mayor predisposición a problemas emocionales y psicosociales. Objetivos: Describir los trastornos mentales más frecuentes en estudiantes de medicina de tres universidades de Lambayeque, durante el año 2012. Material y métodos: Estudio descriptivo transversal. La población fue de 998 alumnos distribuidos según año de estudio académico, elegidos mediante muestreo consecutivo. Se utilizó el Test Mini International Neuropsychiatric Interview (MINI) como tamizaje. Se realizó un análisis descriptivo y un análisis bivariado exploratorio determinando razones de prevalencia con un IC 95%, usando chi2 y el test de Fisher. Se usó el Software STATA versión 11. Resultados: Se entrevistó un total de 284 alumnos, la media de edad fue de 21,05 ± 3,8 años, 57,4% fueron mujeres, 98,2% solteros, 61% cursaban ciencias básicas, 6,7% tenían diagnóstico previo de depresión y 7,4% tenían diagnóstico previo de ansiedad; 140 estudiantes (49,07%) reportaron por lo menos un trastorno mental (TM). Los trastornos mentales con mayor prevalencia fueron episodio hipomaniaco (19,7%) y episodio depresivo (17,3%). En el análisis bivariado se encontraron asociaciones entre alguna forma de trastorno mental y edad, estudiar en una universidad privada y cursar estudios de ciencias básicas. Conclusiones: En estudiantes de medicina de Lambayeque se han encontrado prevalencias frecuentes de episodios hipomaniaco y depresivo mayor, y de riesgo suicida. Deben conducirse mayores y más profundos estudios de corte epidemiológico en este tipo de población.
Constructivist Methods in Teaching: The Case for Albania
Authors: Nela MSc. Alfred 
Published: January 2017

In the previous century many theories were created for the teaching. One of them is the constructivist method widely used. The focus of constructivist theory is oriented towards the pupil. It presupposes that the environment of learning should provide view points or different interpretations of reality, building knowledge, wealth content, and activities that are based on experience. Constructivism is focused on lore and knowledge and not in mechanic imitation of subject content. It is based on a persuasion that the person builds his lore based on his experience, mental structure and faiths used for interpretation of objects and phenomena. The mind is used like an instrument in the interpretation of the event, goals and prospects because they are personal and individual.The main goal of the survey is the coverage and elaboration of some theoretical and practical views, reported from a considered number of research examples about constructivist methods and an actual analysis of Albanian educational system. As a research methodology we have exploited quantitative data. National and international surveys are used, dedicated, to the evaluation of Albanian Pre-university educational system.In the last decadeAlbania, started adopting some reforms in the teaching methodology. Some experts in educational field published some textbooks and manuals about constructivist methods. Prior to these reforms in the field of teaching, policy making bodies approved ordinance and legal drafts in adjustment of this methodology. But even after these reforms, the Albanian educational system is behind the regional education system in regards to the achievements of pupils. The lack of specific training of educational staff, non-adaptation of educational software, inappropriate physical infrastructure of schools, the lack of technical equipments hamper the practicability of this method. Another aspect is insufficient financial budget dedicated to education. Albanian school is also guided and managed by leaders and teachers that follow traditional methods in teaching and administration.