bluuebunny/crossref_metadata_2025 huggingface dataset:
Company Size Effect in the Stock Market of Thailand
Authors: Alfonso Perez Gerardo “Gerry”
Published: July 2017

The outperformance of small capitalization companies over large capitalization companies is a well-known occurrence in developed markets (Gorn, 1962), (Jacobs, 1989) with (Banz, 1981) numerically showing that this effect on stocks in the New York Stock Exchange. This phenomenon is based on the idea that some company specific characteristics can have a statistically significant impact on stock performance. The existence, or otherwise of this effect in emerging markets has received less attention. Given the very different characteristics of emerging markets compared to mature markets like the US is not immediately evident that the same conclusions can be extrapolated. One of the immediate clear differences between emerging and mature markets is the depth with markets like the US having a large amount of listed companies as well as large average trading volumes. In fact, when this analysis has been repeated in some emerging markets, such as Sri Lanka, the results seem to indicate that there is no statistically appreciable difference between the return of small and large capitalization stocks (Macn, 2013). It should be noted that in the case of the Sri Lanka case there were only, at the time of the article, 25 listed companies, of which only 12 were included in the analysis. The specific case of the stock market of Thailand is analyzed in this paper. The results of this article seem to point towards the existence of a size effect, affecting stock performance, in the Thai stock market. Some articles covering emerging market as a whole as pointed towards the opposite results. Given the substantial differences among emerging markets countries it is perhaps a better approach to follow an individualized analysis, country per country, rather than treat it as a homogenous group.
Modelling the Impact of Liquidity Trend on the Financial Performance of Commercial Banks and Economic Growth in Cameroon
Authors: Njimanted Godfrey Forgha , Akume Akume Daniel , Aquilas Nkwetta Ajong
Published: July 2017

Recent year statistics have revealed the build-up of excess liquidity in Cameroonian commercial banks for more than two decades now. This has led to renewed interest in liquidity management, as it has implications on the financial performance of commercial banks. This paper is therefore designed to examine the impact of excess liquidity on the financial performance of commercial banks in Cameroon. Using Return on Assets (ROA) as proxy for the measurement of financial performance, secondary data from 1990 to 2016, with the application of the VAR technique, the findings reveals that excess liquidity and total liquid outflows affect ROA negatively. Gross domestic product, interest rate gap, total liquid inflows and previous year ROA had positive effects on ROA. Also from the empirical findings, there is an existing significant negative chain between excess liquidity, commercial bank performance and economic growth in Cameroon based on the Koyck Geometric lag reasoning. To address the negative vicious cycle chain, we therefore recommend guided minimum and maximum liquidity regulatory control and government effort geared towards encouraging moral suasions and special directive of investment by commercial banks in the agricultural, industrial and the educational sectors in Cameroon. Also, commercial banks should set maturity mismatch limits appropriate to the size of excess liquidity observed in each bank. Attempt to reverse the chain is part of the assurance to Cameroon emergence by 2035.
Momentum: An Economic View
Authors: Berghorn Wilhelm , Otto Sascha
Published: July 2017

Momentum strategies have widely been recognized in the literature for several markets, asset classes and time horizons. However, these strategies face a major objection as they significantly violate even the weak form of the efficient market hypothesis. Recently, it has been shown that, from a mathematical perspective, the inner dynamics of asset prices are better described by the Mandelbrot Market Model. This model uses fractal trends observed in real stock data, and the mathematical characteristics measured and used in the model show that trends in this fractal setup explain momentum. A central question attached to this mathematical analysis is why these long trends exist, economically. Although it has been documented well in the literature that investors are not rational and are prone to several biases, we show in this work by example that momentum strategies leverage fundamental, company-specific improvements of the business condition, capturing the value generation process. Consequently, this work supports the mathematical claims made previously: There are no efficient markets as investors constantly fail to anticipate available information.
Effect of internet use for health information and internet addiction on adolescents female high school’ health lifestyle
Authors: Abdrbo Amany A. , Hassanein Salwa
Published: July 2017

Background and objective: There is not enough evidence linking attitudes toward using the Internet to gather health information and adolescents’ lifestyles. The objective of this study is to assess the effect of Internet use for gathering health information and Internet addiction on adolescents’ health lifestyles in Saudi Arabia.Methods: A descriptive correlational cross-sectional design was utilized to collect data from a convenience sample of 456 high-school-aged female adolescents, who completed self-administered questionnaires consisting of demographic data, attitudes toward Internet use, Internet use for seeking health information, Internet use to communicate about health, Internet addiction, and adolescent health lifestyles.Results: The adolescent female high school students’ average age was 16.88 years (SD = 1.05); Regression analyses revealed that the main effects of students’ attitudes toward the Internet, along with how using the Internet to seek health information and to communicate about health, and Internet addiction significantly (p < .001) affected these female high school students’ lifestyles subscales. However, some predictors had varied effects on lifestyle subscales.Conclusions: The general consensus of the research about Internet use among young people to date shows that adolescents use the Internet to communicate about their own health problems, but they do not address all of the dimensions of healthy lifestyle. This study will help identify lifestyle risk factors among adolescent female high school students, such as malnutrition, physical inactivity, not taking full responsibility for one’s health and not communicating enough about one’s health.
The Impact of Bleeding Disorders on the Socioeconomic Status of Adult Patients
Authors: von Mackensen Sylvia , Bokemeyer Carsten , Langer Florian , Holstein Katharina
Published: July 2017

The impact of inherited bleeding disorders on the socioeconomic status (SES) of affected individuals is not clear. The SES of adult patients with congenital bleeding disorders (PWBD) from a centre in Germany (age 42.3 ± 15.0 years) was compared to that of a gender- and age-matched control group of patients with thrombophilia or a thrombotic event (PWT). Patients completed a questionnaire including aspects of SES, impact of the disease on their lives, and health-related quality of life (HRQoL). Forty-five patients were enrolled in each group; 71 % of PBWD had a severe form of the bleeding disorder (FVIII/IX activity < 1 % or VWD type 3), and 60 % of all PWBD were treated on-demand. PWBD had a lower monthly income (p = 0.029) and a worse occupational status (p = 0.047) than PWT, but there was no difference regarding the project-specific SES index. PWBD also reported a worse HRQoL in the physical summary component score of the SF-36 (p < 0.001). More PWBD (69.8 %) reported a high impact of the disease on their lives than PWT (33.3 %, p < 0.001). In summary, PWBD had a worse occupational status, monthly income, health behaviour, HRQoL, and impact of the disease on their lives compared to PWT, but not a significantly different SES in general.
Catholic Natural Law and Business Ethics
Authors: Velasquez Manuel
Published: July 2017

This article describes Catholic natural law tradition by examining its origins in the medieval penitentials, the papal decretals, the writings of Thomas Aquinas, and seventeenth-century casuistry. Catholic natural law emerges as a flexible ethic that conceives of human nature as rational and as oriented to certain basic goods that ought to be pursued and whose pursuit is made possible by the virtues. Four approaches to natural law that have evolved within the United States during the twentieth century are then identified, including the traditionalist, proportionalist, right reason, and historicist approaches. The normative implications of these approaches are discussed in relation to ethical issues in the tobacco industry, ITT under Geneen, the marketing of pharmaceuticals, affirmative action, and bribery. It is argued that Alasdair MacIntyre is correct in claiming that the natural law tradition issuperior to the liberal ethics of modern deontology and utilitarianism.
Judaism, Business, and Privacy
Authors: Dorff Elliot N.
Published: July 2017

This article first describes some of the chief contrasts between Judaism and American secularism in their underlying convictions about the business environment and the expectations that all involved in business can have of each other-namely, duties vs. rights, communitarianism vs. individualism, and ties to God and to the environment based on our inherent status as God's creatures rather than on our pragmatic choice. Conservative Judaism's methodology for plumbing the Jewish tradition for guidance is described and contrasted to those of Orthodox and Reform Judaism.One example of how Conservative Judaism can inform us on a current matter is developed at some length-namely, privacy in the workplace. That section discusses (1) the reasons for protecting privacy; (2) protection from intrusion, including employer spying; (3) protection from disclosure of that intended to remain private; (4) individualistic vs. communitarian approaches to grounding the concern for privacy; and (5) contemporary implications for insuring privacy in business.
Plano de parto: ferramenta para o empoderamento de mulheres durante a assistência de enfermagem
Authors: Silva Adaiele Lucia Nogueira Vieira da , Neves Adriele Benites das , Sgarbi Aniandra Karol Gonçalves , Souza Rosely Almeida
Published: July 2017

Objetivo: refletir sobre a importância do plano de parto na assistência de enfermagem, visando à autonomia da mulher. Método: trata-se de um texto reflexivo sobre o uso do Plano de Parto durante a assistência de enfermagem e o empoderamento da mulher. Resultados: enquanto ferramenta, o plano de parto centraliza o direito à informação e à decisão na mulher, tornando-a protagonista de seu próprio parto. Assim, garante-se o respeito ao princípio bioético de autonomia e às decisões da mulher,contribuindo para seu empoderamento no processo de gerar e parir. Considerações finais: evidencia-se, nesse estudo, a importância do uso do plano de parto pela enfermagem como instrumento de empoderamento da mulher. Ele é uma ferramenta que deve ser utilizada, visando à garantia de uma assistência de enfermagem humanizada, de qualidade e isenta de danos à mulher.
Dificuldades do enfermeiro no gerenciamento da unidade de pronto–socorro hospitalar
Authors: Bugs Thais Vanessa , Rigo Denise de Fátima Hoffmann , Bohrer Cristina Daiana , Borges Fabieli , Oliveira João Lucas Campos de , Tonini Nelsi Salete
Published: July 2017

Objetivo: identificar as dificuldades do enfermeiro no gerenciamento da unidade de Pronto-socorro. Método: estudo descritivo, qualitativo, documental. Foi desenvolvido por meio dos portfólios de residentes de enfermagem sobre o trabalho gerencial do enfermeiro entre abril a junho de 2016 na unidade de Pronto-socorro de um hospital de ensino público do interior do Paraná, Brasil. Aos registros dos portfólios, empregou-se Análise de Conteúdo na modalidade temática. Resultados: emergiram três categorias, que se relacionam às dificuldades na dinâmica de funcionamento da unidade, na gestão de pessoas e no gerenciamento de recursos materiais. Conclusão: as dificuldades enfrentadas ratificam a contingência e a complexidade da gerência, algumas vezes superando a governabilidade do enfermeiro. Entretanto, especialmente no manejo de recursos, é necessário que o profissional se utilize mais racionalmente dos meios e instrumentos gerenciais em prol do cuidado qualificado.
Percepção do condutor acidentado sobre os fatores que influenciaram no acidente motociclístico
Authors: Coelho Ana Paula , Rios Sarah Isabel Magalhães , Dourado Sandra Beatriz Pedra Branca , Luz Vera Lucia Evangelista de Souza , Veloso Marylane Viana , Cavalcante Andreia Karla Carvalho Barbosa
Published: July 2017

Objetivo: identificar a percepção do condutor acidentado sobre os fatores que influenciaram no acidente motociclístico. Método: pesquisa descritiva, qualitativa, desenvolvida no mês de setembro de 2015, com quinze pessoas acidentadas, que conduziam a motocicleta no momento do acidente, na capital do Estado do Piauí. Os dados foram analisados pela técnica de análise temática. Resultados: emergiram neste estudo três categorias: percepção das vítimas de acidente motociclístico quanto ao seu comportamento de risco; associação do acidente ao comportamento de risco do outro condutor; e fatores externos relacionados ao acidente do motociclista na concepção do condutor acidentado. Considerações finais: Evidenciaram-se dois grandes desafios do poder público: instituir uma educação no trânsito tão eficaz quanto a política de venda de motocicletas e, envolver a sociedade em debates sobre os problemas que ocorrem no trânsito.
Diagnósticos e intervenções de enfermagem do domínio segurança e proteção para pacientes em hemodiálise
Authors: Aguiar Letícia Lima , Guedes Maria Vilani Cavalcante
Published: July 2017

El objetivo de este estudio fue identificar los diagnósticos de enfermería del dominio seguridad y  protección de la Taxonomía II de NANDA-I y proponer intervenciones y actividades de enfermería basadas en la Nursing Interventions Classification (NIC) para los pacientes con insuficiencia renal crónica en hemodiálisis. Se analizaron en el estudio los diagnósticos presentes en al menos el 75% del grupo de muestra, que se compone de 25 pacientes en Fortaleza-Ceará-Brasil en 2014/ 2015. El estudio fue aprobado por el Comité de Ética en Investigación de la Universidad del Estado de Ceará y del Hospital General de Fortaleza bajo parecer Nº 392488 CAAE: 19640613.2.0000.5534. Se eligieron cinco diagnósticos de enfermería de riesgo presentes en el 100% de la muestra. Algunas de las actividades e intervenciones propuestas para el diagnóstico de riesgo de infección fueron control de la infección y limpiar adecuadamente el ambiente después de su uso por cada paciente. Los diagnósticos encontrados están todos relacionados con los riesgos, lo que muestra el papel del enfermero en desempeñar acciones preventivas con los pacientes y los profesionales, ya que son los responsables del éxito del tratamiento. Además de que el conocimiento de estos y sus intervenciones y actividades proporcionan una base científica para que la discusión se base en pruebas. Por último, la investigación se hizo relevante por aportar contribuciones a la enfermería / salud en las acciones de atención a los pacientes / usuarios en tratamiento de hemodiálisis.
Comportamentos de risco relacionado com o consumo de substâncias psicoativas em crianças e jovens da cidade de Lisboa
Authors: Deodato Sérgio , Nunes Elisabete , Capelas Manuel , Seabra Paulo , Sarreira-Santos Alexandra , Medeiros-Garcia Lurdes
Published: July 2017

Objetivo: Caracterizar el comportamiento de riesgo de las sustancias psicoactivas en una población juvenil de Lisboa.
Método: Estudio observacional, descriptivo y transversal. Los participantes fueron 113 niños y jóvenes quienes respondieron a la versión en portugués del Cuestionario de Riesgo y Comportamiento de la Salud - Youth Risk Behavior Survey.
Resultados: Los participantes con respecto a la edad tenían entre 9-13, la mayoría de 5º grado de escolaridad, vivían con sus padres, tenían un buen rendimiento escolar, buena relación con los colegas aunque ¼ refería problemas. Cuando están preocupados, recurren a la madre, pero es significativa la atención de los padres. En cuanto a la prueba de sustancias psicoactivas se encontró: 9,7% de tabaco,  19,5% de alcohol, otras sustancias 5,3%.
Conclusión: En relación con el comportamiento de riesgo destaca principalmente la ingesta de alcohol antes de tiempo. Surgieron como factores de protección: las relaciones familiares y la relación con el espacio escolar. Este grupo de edad puede constituir el momento ideal para la prevención.
Eventos adversos relacionados às práticas assistenciais: uma revisão integrativa
Authors: Lopes de Figueiredo Mirela , D'Innocenzo Maria
Published: July 2017

Objetivo: Identificar las publicaciones científicas sobre eventos adversos relacionados con las prácticas asistenciales y discutir la cultura de seguridad del paciente.
Métodos: Se realizó una revisión bibliográfica del tipo integrador, con búsqueda en MEDLINE, LILACS y BDENF disponibles en la BVS, utilizando los siguientes descriptores; seguridad del paciente, asistencia al paciente, vigilancia de eventos centinela, gestión de la seguridad. Cumplieron los criterios de inclusión 26 artículos científicos publicados en el período delimitado para esta revisión de 2005 a 2015.
Resultados: El análisis de los artículos reveló cinco categorías principales: características de los eventos adversos relacionados con las prácticas asistenciales, implicaciones de la ocurrencia de eventos adversos, medidas para la prevención de eventos adversos, notificaciones de los eventos adversos y los factores intervenientes y el conocimiento y la cultura de la seguridad.
Conclusión: La cultura punitiva aparece como responsable de la subnotificación y omisión de los eventos adversos, que constituyen un obstáculo para la aplicación efectiva de las investigaciones. Es esencial estimular una cultura de seguridad para establecer estrategias que aseguren la prestación de cuidados libres de daños.
Engagement o compromiso en profesionales de enfermería: variables socio-demográficas y laborales asociadas
Authors: Sanclemente Vinué Isabel , Saso Carmen Elboj , Berrozpe Tatiana Íñiguez
Published: July 2017

Objetivos: Determinar el nivel de  engagement y la relación con las seis áreas de la vida laboral en los profesionales de enfermería en la ciudad de Huesca (España) y su asociación con las variables socio-demográficas y laborales.
Materiales y Método: Estudio descriptivo, transversal, con abordaje cuantitativo, en el que participaron 305 profesionales de enfermería. Se realizó un análisis descriptivo, correlaciones y pruebas paramétricas bivariadas, ANOVA y T-Student.
Resultados: La mayoría de los participantes eran mujeres, con pareja estable e hijos, con edad media de 44,98 años (DT 10,86). El 35,4% de la muestra presenta altos niveles de engagement (altos niveles de energía, implicación y eficacia). El estado civil, la situación laboral del cónyuge y padecer enfermedades crónicas se relaciona con los niveles de eficacia; las actividades de ocio se relacionan con los niveles de energía e implicación. La valoración del clima laboral se relaciona con las tres áreas del engagement; la edad, el tiempo en la unidad de trabajo, los años como enfermera y el tiempo en un puesto de dirección se relacionan con la implicación.
Conclusiones: La población estudiada presenta altos niveles de engagement laboral y congruencia entre las sub-escalas de la vida laboral y la organización, con la excepción de la sub-escala de justicia, puesto que los individuos encuestados creen que la organización los trata de forma injusta.
Validación de la “Subjective Happiness Scale” en personas con Enfermedad Renal Crónica
Authors: Sousa Luís Manuel Mota , Marques-Vieira Cristina Maria Alves , Severino Sandy Silva Pedro , Pozo-Rosado Juan Luis , José Helena Maria Guerreiro
Published: July 2017

Objetivo: Verificar las propiedades psicométricas de la Subjective Happiness Scale (SHS), en personas con Enfermedad Renal Crónica (ERC), en hemodiálisis.
Método: Estudio metodológico cuya muestra aleatoria estuvo constituida por 171 personas con ERC que realizan hemodiálisis en dos clínicas de la región de Lisboa (Portugal). Los datos se obtuvieron entre Mayo y Junio del 2015. Las propiedades psicométricas estudiadas fueron la validez (constructo, convergente, discriminante), la fiabilidad (consistencia interna (α de Cronbach)) y la estabilidad (Coeficiente de Correlación Intra-clase y de Correlación de Spearman-Brown).
Resultados: Los resultados confirman la estructura uni-factorial, presentando una fiabilidad con α=0,90. La escala presenta una correlación positiva con la Escala de Satisfacción con la Vida (r=0,60; p<0,001), lo que sirve para certificar su validez de criterio.
Conclusión: la versión portuguesa de la SHS es válida, fiable y reproducible en personas con ERC que realizan hemodiálisis.
Entrevista al Dr. González Wagner.
Authors: Núñez Martínez Ana María
Published: July 2017

Nos encontramos ante una entrevista al Doctor Gonzalez Wagner el cual ha desarrollado su actividad científica entorno al Próximo Oriente resultando de ello una producción literaria abundante entre la que destacaremos la publicación junto a D. Plácido y J.Alvar de La formación de los Estados en el Mediterráneo Occidental , la mayor parte de su obra la encontramos en artículos, ya sea en revistas como Gerión, de la que formó parte como miembro del consejo de redacción, ya sea en prensa, como en congresos y seminarios.
Cochrane, N.C.: Cristianismo y cultura clásica, México, 1949.
Authors: Navarro Antonio
Published: July 2017

En este ensayo en una extensión de quinientas páginas que se distribuyen en tres grandes partes. La primera, titulada “La reconstrucción”. La segunda parte lleva por título “La renovación”, y está compuesta por cinco capítulos. Y por último, la tercera parte llamada “La regeneración”, está compuesta a su vez por tres capítulos.
Gómez-Acebo, I., Bautista, E., Navaro, M., Del pino Tejera, M., Ruiz López, D.: María, mujer mediterránea, Bilbao, 1999..
Authors: de Dios Eva Mª
Published: July 2017

María es uno de los referentes dentro de la teología, este libro nos muestra la cara oculta de un personaje bíblico que todavía tiene mucho que decir, sólo hay que pararse a descubrirlo; cada punto de vista es un acercamiento, un paso más hacia el conocimiento de una mujer que supo ser una persona de su espacio y de su tiempo.
Proyecto "Hemeroteca": Presentación y breve comentario.
Authors: Egea Vivancos Alejandro
Published: July 2017

Nos encontramos ante un breve estudio del proceso de un listado de fácil consulta donde poder comprobar la existencia o no de ciertos números de determinadas revistas en la Universidad de Murcia, evitando así el siempre costoso intercambio de artículos, y sobre todo el consultar o fotocopiar algunos artículos en otras bibliotecas fuera de nuestra Universidad y provincia.
Les méthodes de sélection des candidats et leur influence sur le profil des têtes de listes lors des élections régionales en Espagne1
Authors: Barberà Oscar
Published: July 2017

Cet article examine quelques-unes des principales conséquences politiques des méthodes de sélection des candidats régionaux en Espagne. Pour ce faire, les hypothèses théoriques sur les modes de sélection des candidats au niveau national sont revisitées et une plus grande attention est portée à l’influence combinée du degré d’inclusivité et de décentralisation. L’article explore les règles de sélection des candidats ainsi que le profil de ces derniers dans trois des principaux partis espagnols (PP, PSOE, IU) au cours des deux dernières décennies. Les résultats montrent de faibles différences entre les méthodes de sélection et les principales caractéristiques sociodémographiques des têtes de listes à l’échelle régionale. En revanche, il semblerait que le sélectorat (en l’occurrence les primaires) ait un impact plus important sur la carrière et l’ancienneté de ces têtes de listes.
La relation entre le mode de sélection des candidats et la congruence idéologique entre masses et élites : analyse du cas belge1
Authors: Vandeleene Audrey , Meulewaeter Conrad , De Winter Lieven , Baudewyns Pierre
Published: July 2017

La sélection des candidats est une fonction majeure exercée par les partis politiques. Or, il ressort que les acteurs responsables de la sélection des candidats sont assez différents d’un parti à l’autre. Cette contribution propose une exploration au-delà de ce qui est appelé « le jardin secret de la politique » en classant les sélecteurs dans les partis en fonction de deux dimensions : l’inclusivité et la centralisation. Au regard des variations importantes constatées, la question se pose de savoir si celles-ci peuvent avoir un impact sur le type de candidats sélectionnés. La relation entre les modes de sélection des candidats et le degré de congruence idéologique entre masses et élites est testée empiriquement, en utilisant les positions des candidats d’une part, et des électeurs d’autre part, sur l’échelle gauche–droite et sur un enjeu lié à l’échelle autoritaire–libertaire. Le cas d’étude couvre dix partis politiques belges, pour deux élections fédérales – une élection normale (2007) et une élection anticipée (2010). Le caractère urgent des élections anticipées de 2010 a contraint certains partis à rendre plus exclusifs leurs modes de sélection. La variation entre les cas n’en est donc que plus grande. Nos résultats suggèrent que le mode de sélection serait lié au degré de congruence. Des sélectorats plus exclusifs auraient davantage tendance à sélectionner des candidats idéologiquement plus proches de leurs électeurs. Cela pourrait s’expliquer par le plus haut taux d’information qui existerait entre les hautes sphères des partis et les électeurs, et par le plus grand pragmatisme électoraliste d’un sélectorat plus restreint.
Decoding temporal interpretation of the morphogen Bicoid in the early Drosophila embryo
Authors: Huang Anqi , Amourda Christopher , Zhang Shaobo , Tolwinski Nicholas S , Saunders Timothy E
Published: July 2017

Morphogen gradients provide essential spatial information during development. Not only the local concentration but also duration of morphogen exposure is critical for correct cell fate decisions. Yet, how and when cells temporally integrate signals from a morphogen remains unclear. Here, we use optogenetic manipulation to switch off Bicoid-dependent transcription in the early Drosophila embryo with high temporal resolution, allowing time-specific and reversible manipulation of morphogen signalling. We find that Bicoid transcriptional activity is dispensable for embryonic viability in the first hour after fertilization, but persistently required throughout the rest of the blastoderm stage. Short interruptions of Bicoid activity alter the most anterior cell fate decisions, while prolonged inactivation expands patterning defects from anterior to posterior. Such anterior susceptibility correlates with high reliance of anterior gap gene expression on Bicoid. Therefore, cell fates exposed to higher Bicoid concentration require input for longer duration, demonstrating a previously unknown aspect of Bicoid decoding.
290 metagenome-assembled genomes from the Mediterranean Sea: a resource for marine microbiology
Authors: Tully Benjamin J. , Sachdeva Rohan , Graham Elaina D. , Heidelberg John F.
Published: July 2017

The Tara Oceans Expedition has provided large, publicly-accessible microbial metagenomic datasets from a circumnavigation of the globe. Utilizing several size fractions from the samples originating in the Mediterranean Sea, we have used current assembly and binning techniques to reconstruct 290 putative draft metagenome-assembled bacterial and archaeal genomes, with an estimated completion of ≥50%, and an additional 2,786 bins, with estimated completion of 0–50%. We have submitted our results, including initial taxonomic and phylogenetic assignments, for the putative draft genomes to open-access repositories for the scientific community to use in ongoing research.
Behavior of flexural gravity waves on ice shelves: Application to the Ross Ice Shelf
Authors: Sergienko O. V.
Published: July 2017

Ocean waves continuously impact floating ice shelves and affect their stress regime. Low‐frequency, long‐period (75–400 s), ocean waves are able to reach ice‐shelf cavities from distant sources and excite flexural gravity waves that represent coupled motion in the water of the cavity and the ice covering above. Analytic treatment of simplified geometric configuration and three‐dimensional numerical simulations of these flexural gravity waves applied to the Ross Ice Shelf show that propagation and ice‐shelf flexural stresses are strongly controlled by the geometry of the system, bathymetry of the ice‐shelf cavity, and ice‐shelf cavity thickness. The derived dispersion relationships, group and phase velocities of these waves can be used to infer poorly constrained characteristics of ice shelves from field observations. The results of numerical simulations show that the flexural gravity waves propagate as beams. The orientation of these beams is determined by the direction of the open ocean waves incident on the ice‐shelf front. The higher frequency ocean waves cause larger flexural stresses, while lower frequency waves can propagate farther away from the ice‐shelf front and cause flexural stresses in the vicinity of the grounding line.
Dual‐Targeting to Cancer Cells and M2 Macrophages via Biomimetic Delivery of Mannosylated Albumin Nanoparticles for Drug‐Resistant Cancer Therapy
Authors: Zhao Pengfei , Yin Weimin , Wu Aihua , Tang Yisi , Wang Jinyu , Pan Zhenzhen , Lin Tingting , Zhang Meng , Chen Binfan , Duan Yifei , Huang Yongzhuo
Published: July 2017

Multidrug resistance (MDR) is an issue that is not only related to cancer cells but also associated with the tumor microenvironments. MDR involves the complicated cancer cellular events and the crosstalk between cancer cells and their surroundings. Ideally, an effective system against MDR cancer should take dual action on both cancer cells and tumor microenvironments. The authors find that both the drug‐resistant colon cancer cells and the protumor M2 macrophages highly express two nutrient transporters, i.e., secreted protein acidic and rich in cysteine (SPARC) and mannose receptors (MR). By targeting SPARC and MR, a system can act on both cancer cells and M2 macrophages. Herein the authors develop a mannosylated albumin nanoparticles with coencapsulation of different drugs, i.e., disulfiram/copper complex (DSF/Cu) and regorafenib (Rego). The results show that combination therapy of DSF/Cu and Rego efficiently inhibits the growth of drug‐resistant colon tumor, and the combination has not been reported yet for use in anticancer treatment. The system significantly improves the treatment outcomes in the animal model bearing drug‐resistant tumors. The therapeutic mechanisms involve enhanced apoptosis, upregulation of intracellular ROS, anti‐angiogenesis, and tumor‐associated macrophage “re‐education.” This strategy is characterized by dual targeting to and the simultaneous action on cancer cells and M2 macrophages, with biomimetic codelivery of a novel drug combination.
Coexistence of Low Damping and Strong Magnetoelastic Coupling in Epitaxial Spinel Ferrite Thin Films
Authors: Emori Satoru , Gray Benjamin A. , Jeon Hyung‐Min , Peoples Joseph , Schmitt Maxwell , Mahalingam Krishnamurthy , Hill Madelyn , McConney Michael E. , Gray Matthew T. , Alaan Urusa S. , Bornstein Alexander C. , Shafer Padraic , N'Diaye Alpha T. , Arenholz Elke , Haugstad Greg , Meng Keng‐Yuan , Yang Fengyuan , Li Dongyao , Mahat Sushant , Cahill David G. , Dhagat Pallavi , Jander Albrecht , Sun Nian X. , Suzuki Yuri , Howe Brandon M.
Published: July 2017

Low‐loss magnetization dynamics and strong magnetoelastic coupling are generally mutually exclusive properties due to opposing dependencies on spin–orbit interactions. So far, the lack of low‐damping, magnetostrictive ferrite films has hindered the development of power‐efficient magnetoelectric and acoustic spintronic devices. Here, magnetically soft epitaxial spinel NiZnAl‐ferrite thin films with an unusually low Gilbert damping parameter (<3 × 10−3), as well as strong magnetoelastic coupling evidenced by a giant strain‐induced anisotropy field (≈1 T) and a sizable magnetostriction coefficient (≈10 ppm), are reported. This exceptional combination of low intrinsic damping and substantial magnetostriction arises from the cation chemistry of NiZnAl‐ferrite. At the same time, the coherently strained film structure suppresses extrinsic damping, enables soft magnetic behavior, and generates large easy‐plane magnetoelastic anisotropy. These findings provide a foundation for a new class of low‐loss, magnetoelastic thin film materials that are promising for spin‐mechanical devices.
Memory Effect of Self‐Assembled PS‐b‐PEO Block Copolymer Films with Selectively Embedded Functionalized TiO2 Nanoparticles
Authors: Kirschner Johannes , Will Johannes , Rejek Tobias J. , Portilla Luis , Berlinghof Marvin , Schweizer Peter , Spiecker Erdmann , Steinrück Hans‐Georg , Unruh Tobias , Halik Marcus
Published: July 2017

The memory effect in organic thin film transistors is described with a dielectric hybrid material composed of selectively localized charge trapping titania nanoparticles in a polystyrene‐b‐polyethyleneoxide (PS‐b‐PEO) diblock copolymer film. Upon solvent annealing in toluene atmosphere, the films readily form nanophase‐separated features of PEO cylinders in a matrix of PS. X‐ray reflectivity (XRR) investigations reveal that the TiO2 particles are selectively distributed in the top half of the hybrid layers. Applied in organic thin film transistor devices with 2‐tridecyl‐[1]benzothieno[3,2‐b][1]benzothiophen (mono‐C13‐BTBT) semiconductor, the hybrid layers induce clockwise drain current hysteresis with promising memory ratio, long‐term stability, and endurance. The occurrence of nonvolatile charge trapping directly relates to the hierarchically assembled nanostructure of the nanoparticles in the block copolymer since reference devices with PS homopolymers blended with TiO2 are found to be hysteresis free. Morphological characterization of the hybrid dielectric layers by atomic force microscopy and XRR experiments is presented to shed light on the internal electron density distribution. The layers are subsequently tested in capacitor stacks and transistors.
Interfacial Thermal Conductance between Mechanically Exfoliated Black Phosphorus and SiOx: Effect of Thickness and Temperature
Authors: Wang Tianyu , Wang Ridong , Yuan Pengyu , Xu Shen , Liu Jing , Wang Xinwei
Published: July 2017

Black phosphorus (BP) is one of new 2D materials that have attracted wide attention. This work reports the interfacial thermal conductance between BP flake and SiOx using Raman spectroscopy. From 293 K down to the 223 K, eight BP flakes in a thickness range of 16.6–113.7 nm are characterized. At 293 K, the largest interfacial thermal conductance is 1.14 × 108 W m−2 K−1 for a 82.1 nm thick BP flake, and the smallest one is 2.17 × 107 W m−2 K−1 for a 26.6 nm thick BP flake. Such large interfacial thermal conductance can be attributed to the excellent interface contact and strong phonon coupling between BP and SiOx. The measured interfacial thermal conductance has a one‐fold up to around four‐fold increase with decreased temperature from 293 to 223 K, which is a result of thermal‐expansion‐mismatch induced variation in the morphology of BP flakes. Additionally, it demonstrates no thickness‐dependent behavior. It is speculated the intrinsic thickness dependence is weak and is overshadowed by the large variation in the interface contact of different samples. As a new 2D material, BP shows great potential to be a thermal interface material for heat dissipation in electronics.
Development of High‐Voltage Aqueous Electrochemical Energy Storage Devices
Authors: Yu Jia , Mu Chao , Qin Xinyu , Shen Chao , Yan Bingyi , Xue Huaiguo , Pang Huan
Published: July 2017

High voltage aqueous electrochemical energy storage devices have gained significant attention recently due to their high safety, low cost, and environmental friendliness. Through the addition of a solid‐electrolyte interphase, usage of a concentrated electrolyte or adjustment of the pH of their electrolytes, it is hopeful to endow these aqueous energy‐storage devices with a broadened voltage. Among all of them, aqueous lithium‐ion batteries have a longer lifespan and a promising future in energy storage systems. Herein, aqueous batteries will be introduced by demonstrating their voltage improvement approaches and progress is focused.
Integration of Biorecognition Elements on PEDOT Platforms through Supramolecular Interactions
Authors: Sappia Luciano D. , Piccinini Esteban , Marmisollé Waldemar , Santilli Natalia , Maza Eliana , Moya Sergio , Battaglini Fernando , Madrid Rossana E. , Azzaroni Omar
Published: July 2017

The rapidly emerging field of organic bioelectronics exploits the functional versatility of conducting polymers to transduce biological recognition events into electronic signals. For the majority of biosensors or biomedical devices, immobilization of a biorecognition element is a critical step to improve the biotic/abiotic interface. In this work, a simple strategy is described to construct large‐area all‐plastic poly(3,4‐ethylenedioxythiophene) (PEDOT) electrodes displaying carbohydrate biorecognizable motifs. First, the method involves the preparation of PEDOT‐poly(allylamine) composites through supramolecular interactions. It is demonstrated by Raman and X‐ray spectroscopy and cyclic voltammetry that the PEDOT:poly(allylamine) ratio and the film electoactivity can be easily controlled. Then, carbohydrate motifs are covalently anchored to the primary amine groups by a straightforward route using divinylsulfone chemistry. The recognition‐driven assembly of the lectin concanavalin A (Con A) and the glycoenzyme glucose oxidase (GOx) onto mannosylated surfaces is demonstrated by surface plasmon resonance spectroscopy. Furthermore, the bioelectrocatalytic glucose detection mediated by the assembled enzyme is studied for all‐plastic and gold electrodes. Interestingly, the synergistic combination of conducting polymers and recognition‐directed assembly leads to a 2.7‐fold enhancement of the bioelectrocatalitic signal. Finally, it is proved that Con A/GOx nanoarchitectures can be constructed onto PEDOT platforms using the layer‐by‐layer technique.
One‐Step Approach to the Growth of ZnO Nano‐/Microrods on Cellulose toward Its Durable Superhydrophobicity
Authors: Xu Chang‐Lian , Wang Yu‐Zhong
Published: July 2017

Superhydrophobic surfaces have aroused great attention to fundamental and scientific researches. However, they have poor durability when they are exposed to a condition of high temperature or external forces. Herein, a durable superhydrophobic cellulose film against extreme high temperature and mechanical force is reported. ZnO nano‐ and microrods are constructed on cellulose using an effective, simple, and environmentally benign one‐step hydrothermal method without any crystal seeds or morphology controlling agents. After being modified with stearic acid, the cellulose film becomes superhydrophobic with a static contact angle of 154.1° and rolling angle of 6.9°. The superhydrophobic cellulose film shows excellent water‐repellent property even under dynamic water pressure, while it exhibits oleophilic nature under water, which can solve water pollution caused by heavy oil residuals. It is further found that it displays durable superhydrophobicity even if heated at 200 °C for 1 h or strongly scratched by knife. And heat treated films have better stability of superhydrophobicity under extreme condition with pH region from 3 to 11. These properties facilitate its applications of harsh conditions.
Synthetic Applications of Vinyl Ruthenium Carbenes Derived from Diazoalkanes and Alkynes
Authors: Dey Soumen , De Sarkar Suman
Published: July 2017

Ruthenium‐catalyzed C–C bond forming reactions between diazoalkanes and alkynes have gained much attention in recent years due to their unique ways for the formation of various synthetic scaffolds via an electrophilic vinyl ruthenium carbene intermediate. These 16‐electron species are isoelectronic with the Grubbs type ruthenium‐benzylidene catalyst, but their structural geometry and ligand liability make them more innovative in catalytic reactions. Recent advances in this field with respect to vinyl ruthenium carbenes and their coupling partners, thus leading to a step‐economical access to versatile molecular architectures, are discussed herein in a sustainable manner.

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A Facile Surface Reconstruction Mechanism toward Better Electrochemical Performance of Li4Ti5O12 in Lithium‐Ion Battery
Authors: Qian Kun , Tang Linkai , Wagemaker Marnix , He Yan‐Bing , Liu Dongqing , Li Hai , Shi Ruiying , Li Baohua , Kang Feiyu
Published: July 2017

Through a facile sodium sulfide (Na2S)‐assisted hydrothermal treatment, clean and nondefective surfaces are constructed on micrometer‐sized Li4Ti5O12 particles. The remarkable improvement of surface quality shows a higher first cycle Coulombic efficiency (≈95%), a significantly enhanced cycling performance, and a better rate capability in electrochemical measurements. A combined study of Raman spectroscopy and inductive coupled plasma emission spectroscopy reveals that the evolution of Li4Ti5O12 surface in a water‐based hydrothermal environment is a hydrolysis–recrystallization process, which can introduce a new phase of anatase‐TiO2. While, with a small amount of Na2S (0.004 mol L−1 at least), the spinel‐Li4Ti5O12 phase is maintained without a second phase. During this process, the alkaline environment created by Na2S and the surface adsorption of the sulfur‐containing group (HS− or S2−) can suppress the recrystallization of anatase‐TiO2 and renew the particle surfaces. This finding gives a better understanding of the surface–property relationship on Li4Ti5O12 and guidance on preparation and modification of electrode material other than coating or doping.
Thiophene Rings Improve the Device Performance of Conjugated Polymers in Polymer Solar Cells with Thick Active Layers
Authors: Duan Chunhui , Gao Ke , Colberts Fallon J. M. , Liu Feng , Meskers Stefan C. J. , Wienk Martijn M. , Janssen René A. J.
Published: July 2017

Developing novel materials that tolerate thickness variations of the active layer is critical to further enhance the efficiency of polymer solar cells and enable large‐scale manufacturing. Presently, only a few polymers afford high efficiencies at active layer thickness exceeding 200 nm and molecular design guidelines for developing successful materials are lacking. It is thus highly desirable to identify structural factors that determine the performance of semiconducting conjugated polymers in thick‐film polymer solar cells. Here, it is demonstrated that thiophene rings, introduced in the backbone of alternating donor–acceptor type conjugated polymers, enhance the fill factor and overall efficiency for thick (>200 nm) solar cells. For a series of fluorinated semiconducting polymers derived from electron‐rich benzo[1,2‐b:4,5‐b′]dithiophene units and electron‐deficient 5,6‐difluorobenzo[2,1,3]thiazole units a steady increase of the fill factor and power conversion efficiency is found when introducing thiophene rings between the donor and acceptor units. The increased performance is a synergistic result of an enhanced hole mobility and a suppressed bimolecular charge recombination, which is attributed to more favorable polymer chain packing and finer phase separation.
Dendrite‐Suppressed Lithium Plating from a Liquid Electrolyte via Wetting of Li3N
Authors: Park Kyusung , Goodenough John B.
Published: July 2017

Lithium metal is an ultimate anode material to provide the highest energy density for a given cathode by providing a higher capacity and cell voltage. However, lithium is not used as the anode in commercial lithium‐ion batteries because electrochemical dendrite formation and growth during charge can induce a cell short circuit that ignites the flammable liquid electrolyte. Plating of lithium through a bed of Li3N particles is shown to transform dendrite growth into a 3D lithium network formed by wetting the particle surfaces; plating through a Li3N particle is without dendrite nucleation. The Li3N particles create a higher overpotential during Li deposition than that with dendrite growth in galvanostatic charge/discharge tests. The characteristic overpotential increase is correlated with the morphological changes and a more isotropic growth behavior. The Li3N‐modified Li electrode shows a stable cycling performance at 0.5 and 1.0 mA cm−2 for more than 100 cycles. The origin of the bonding responsible for wetting of the Li3N particles by lithium and for plating through a Li3N particle is discussed.
Generalized Gibbs free energy of confined nanoparticles
Authors: Wu Nanhua , Ji Xiaoyan , An Rong , Liu Chang , Lu Xiaohua
Published: July 2017

The nanoparticles generally show abnormal properties compared to those in the bulk phase, and they exhibit significant potential in various applications such as catalysis and energy conversion. However, the theoretical work for describing the properties of nanoparticles is limited with poor prediction capacity. In this work, the Gibbs free energy was studied, from both macroscope and microscope, predictive models were proposed to study the thermodynamic properties of nanoparticles with a generalized description of the Gibbs free energy considering the effects of surface‐energy and the substrate contacted. The proposed model from the microscope was based on the corresponding states theory to describe the effect of the substrate on the Gibbs free energy of nanoparticles, in which the molecular parameter with a generalized constant was obtained from the melting point of metals due to sufficient experimental information. The comparison with the new measured experimental results proves the reliability of the model prediction. © 2017 American Institute of Chemical Engineers AIChE J, 63: 4595–4603, 2017
Pressure drop and saturation of nonwettable coalescing filters at different loading rates
Authors: Chang Cheng , Ji Zhongli , Liu Jialin
Published: July 2017

The effect of layers on the pressure drop and saturation of nonwettable filters at different loading rates were investigated. It was found that both the jump and channel pressure drop depended on the loading rate. The total channel pressure drop of different filters seemed independent of the number of layers. At the same loading rate, more layers led to fewer channels per layer and larger size of each channel. Moreover, according to the evolution of channel number and size, there was a reorganization of channel structure in the filters. © 2017 American Institute of Chemical Engineers AIChE J, 63: 180–185, 2018
Numerical and experimental investigation on surface air entrainment mechanisms of a novel long‐short blades agitator
Authors: Zhang Yueqiao , Pan Xiang , Wang Yaohua , Luo Peicheng , Wu Hua
Published: July 2017

We investigate numerically and experimentally the mechanisms of surface air entrainment in the vessels equipped with the long‐short blades agitator. VOF method coupled with LES model is used to visualize the surface air entrainment process. In the case of partial submergence of the long blades (LBs), the interaction of the LBs with the liquid free surface creates a depression behind the LBs. Backfilling of the liquid into the depression leads to gas separation and entrapping into the liquid. The critical tip velocity of the LBs, utip,c, for the onset of gas entrainment is measured in vessels with diameters, T = 200∼600 mm. It is found that when H/T ≥ 1.0, utip,c is determined by the LBs, independent of the liquid level. utip,c is also affected by the size of the vessel through the diameter of the sweeping circle of the LBs, but for substantially large vessels, it approaches a constant value. © 2017 American Institute of Chemical Engineers AIChE J, 63: 316–325, 2018