bluuebunny/crossref_metadata_2025 huggingface dataset:
Longterm Effectiveness of Herpes Zoster Vaccine among Patients with Autoimmune and Inflammatory Diseases
Authors: Yun Huifeng , Xie Fenglong , Baddley John W. , Winthrop Kevin , Saag Kenneth G. , Curtis Jeffrey R.
Published: March 2017

Objective.

The protection duration of herpes zoster (HZ) vaccination is unclear among patients with autoimmune (AI) diseases.

Methods.

Using 2006–2013 Medicare data, HZ vaccinated patients with AI were matched 1:2 to unvaccinated HZ. Incidence rates (IR) and adjusted risk ratios over time were calculated using Poisson regression.

Results.

Of 59,627 vaccinated patients, crude IR increased from 0.75/100 person-years during the first year post-vaccination to 1.25 during the seventh year. Vaccinated patients had a significantly lower risk of HZ compared with the unvaccinated through 5 years.

Conclusion.

HZ vaccination was significantly protective only for about 5 years among patients with AI.
La honte, fléau de la supervision
Authors: Perret Valérie
Published: March 2017

« La honte, fléau de la supervision »… Dans cet article, largement inspiré par son expérience personnelle, Valérie Perret s’adresse à la fois aux superviseurs et aux supervisés. À tous, elle rappelle comment la honte se met en place, et comment la situation d’apprentissage qu’est la supervision peut en remettre en route les mécanismes. La honte se nourrit de secret et « se dessèche à la lumière ». Aux supervisés, elle dit qu’il n’y a pas de honte à avoir honte ; il est légitime d’attendre d’un superviseur qu’il nous accueille et nous soutienne inconditionnellement, y compris dans les points de notre pratique dont nous sommes peu fiers. Aux superviseurs, elle montre comment l’utilisation des besoins relationnels (Erskine, Moursund, Trautmann) permet de poser un cadre à même de faciliter l’émergence de la honte et d’en sortir. C.F.
L’humanitaire instrumentalisé à Calais
Authors: Gerbier-Aublanc Marjorie
Published: March 2017

En visite à Calais, le 26 septembre 2016, François Hollande confirmait le démantèlement « complet et définitif » imminent de la jungle sans pour autant en préciser la date ni d’ailleurs les modalités de sa destruction ou le sort réservé à ses 10000 habitants. C’est dans un double contexte d’incertitude et d’urgence que les associations humanitaires intervenant sur le terrain ont participé, plus ou moins directement, à la préparation de cette soi-disant « opération humanitaire ».
In vitro and in vivo cholesterol lowering ability of Lactobacillus pentosus KF923750
Authors: Bendali F. , Kerdouche K. , Hamma-Faradji S. , Drider D.
Published: March 2017

Lactobacillus pentosus KF923750 was characterised for probiotic related properties and then characterised for cholesterol uptake in vitro as well as in vivo using rabbits fed a high-cholesterol diet. The survival percentage of L. pentosus KF923750 was 100% at pH 3, 52.18% at pH 2 and 36.21% at pH 2 plus pepsin. Similarly, this strain appeared resistant to bile (0.1% [98.42%], 0.3% [88.52%], 0.5% [75.60%] and 1% [71.15%]), after 4 h exposure. Moreover, L. pentosus KF923750 controlled growth of Escherichia coli ATCC 25922 and Staphylococcus aureus ATCC 25923 through the production of a bacteriocin-like inhibitory substance and anti-adhesive capabilities. L. pentosus KF923750 was non-cytotoxic to eukaryotic cells but sensitive to some antibiotics. Compared with rabbits fed a high-cholesterol diet but without L. pentosus KF923750 supplementation, the plasma total cholesterol, low-density lipoprotein cholesterol and triglycerides levels were significantly decreased in L. pentosus KF923750-fed rabbits by 11.54, 16.00 and 18.00%, respectively, with no significant change in high-density lipoprotein cholesterol levels. The histological sections of livers revealed lesions in all the rabbits that were fed a high-cholesterol diet, but these were less pronounced in rabbits ingesting L. pentosus KF923750. This study highlights the potential of lactobacilli, such as L. pentosus KF923750, in the treatment or prevention of hypercholesterolemia.
TECHNOLOLGY AND SCIENCE EDUCATION: New challenges
Authors: Amante García Beatriz , Martínez Martínez María
Published: March 2017

As usual in JOTSE, the first editorial of the year presents an analysis of our Journal evolution. In this sense, we reflect on the changes undergone and the challenges we will face in the new year 2017.
Sustainable Urban Design with Chinese Characteristics: Inspiration from the Shan-Shui City Idea
Authors: Yang Yizhao , Hu Jie
Published: March 2017

Aspiration for economic development and the forces of globalization have driven China to embrace global city planning and city building ideas. A threat of identity loss in many Chinese cities is becoming evident. Some scholars have suggested that “China seems to apprehend a need to return to its original civilization” and see the significance of applying the values embedded in traditional Chinese urbanism, such as balance and harmonious human-nature relationships, in its urban development. This paper examines how a Chinese vernacular urbanism, the Shan-Shui City (山水城市), can be an important source of inspiration for creating places that can balance the needs for economic growth and environmental protection. The paper describes a case study of a large urban development project that has applied the Shan-Shui city idea, the Beijing Olympic Forest Park, and argues that the environmental philosophy and aesthetics underlying the traditional “Shan-Shui” concept and the planning and design strategies embraced by the “Shan-Shui” city idea can make this place-making method an appealing and effective sustainable urban development approach in China.
Cognitive Internet of Everything (CIoE)
Authors: Jamnal Gopal Singh , Liu Xiaodong , Fan Lu , Ramachandran Muthu
Published: March 2017

In today's world, we are living in busy metropolitan cities and want our homes to be ambient intelligent enough towards our cognitive requirements for assisted living in smart space environment and an excellent smart home control system should not rely on the users' instructions (Wanglei, 2015). The ambient intelligence is a sensational new information technology paradigm in which people are empowered for assisted living through multiple IoTs sensors environment that are aware of inhabitant presence and context and highly sensitive, adaptive and responsive to their needs. A noble ambient intelligent environment are characterized by their ubiquity, transparency and intelligence which seamlessly integrated into the background and invisible to surrounded users/inhabitant. Cognitive IoE (Internet of Everything) is a new type of pervasive computing. As the ambient smart home is into research only from a couple of years, many research outcomes are lacking potentials in ambient intelligence and need to be more dug around for better outcomes. As a result, an effective architecture of CIoE for ambient intelligent space is missing in other researcher's work. An unsupervised and supervised methods of machine learning can be applied in order to classify the varied and complex user activities. In the first step, by using fuzzy set theory, the input dataset value can be fuzzified to obtain degree of membership for context from the physical layer. In the second step, using K-pattern clustering algorithms to discover pattern clusters and make dynamic rules based on identified patterns. This chapter provides an overview, critical evaluation of approaches and research directions to CIoE.
How Cross-Platform Technology Can Facilitate Easier Creation of Business Apps
Authors: Majchrzak Tim A. , Dageförde Jan C. , Ernsting Jan , Rieger Christoph , Reischmann Tobias
Published: March 2017

Applications for mobile devices – apps – have seen unprecedented growth in importance. Ever better apps keep propelling the proliferation of mobile computing. App development is rather easy, particularly if it is based on Web technology. However, implementing apps that are user friendly and useful in the long-run is cumbersome. Thereby, it typically is expensive for corporate developers. Nonetheless, business apps are embraced by enterprises. To overcome the overhead of developing separately for multiple platforms and to mitigate the problems of device fragmentation, cross-platform development approaches are employed. While many such approaches exist, few have found widespread usage. In this chapter, we argue what the path towards future solutions could look like. We thereby take a rather technological look, but always keep business-orientation in mind. Our findings suggest that much effort is needed to enable the next generations of business apps. However, such apps will provide many merits and possibilities. Moreover, they provide the chance to master several of today's challenges.
Post-Purchase Apps Usage Attitudes
Authors: Rezaei Sajad , Sivasubramaniam Srikaanth , Ho Ree C.
Published: March 2017

The importance of relationship between customer and retailer has become prevalent in the ever-increasing competitive online market. The customers buying process often begin with the downloading of the required Apps in relation to the products they intended to purchase. Hence, customer satisfaction depends on customers' post-purchase evaluation on their experience with the use of the Apps. The aim of this chapter is to conceptualize the apps usage for online shopping, by examining the role of trust and satisfaction gained from the market interaction between the customers and retailers. Customers rely heavily on the information as well as the experiences encountered from the use of the apps. The retailers need to gain insights from the customer's perspective on the apps usage in order to improve customer relationship. This has impact on retailers' marketing efforts for winning the customers' loyalty.
Augmented Reality Apps for Tourism Destination Promotion
Authors: Rahimi Roya , Hassan Azizul , Tekin Ozlem
Published: March 2017

Current chapter focuses on the effectiveness of Augmented Reality (AR) supported applications for mobile and wearable devices during the visitation of tourist destinations. AR as an innovative technology tool becomes inseparable part of destinations' marketing in different countries across the world. However, the use of AR for marketing purpose in tourism destinations is fully dependent on access and resource availabilities. Hence the effective of AR application in tourism destination marketing remains a subject to detailed and accurate information availability of a particular destination or a region. This chapter draws particular reference to the AR supported ‘Mobile guides' that replaced conventional human tourist guides. The chapter is indebted to AR literature written in the Turkish. Results demonstrate that AR as an innovative technology can be applied for tourism destination promotion.
Antecedents of Apps Channel Selection
Authors: Muthukumaran Mark Arjun , Rezaei Sajad , Oh Yoke Moi , Manli Gu
Published: March 2017

Apps on mobile devices like smartphones have become the core of the digital life of consumers. Apps are used for shopping or communicating in social networks and are gaining more and more attention in enterprises as an enabler for agile process optimization. The increase in the number of mobile Apps has greatly contributed to social capital and e-commerce worldwide. However, there is a lack of evidence in examining the impact of privacy, fulfillment, perceived Apps channel service quality and relative benefits of Apps channel selection. Hence, this chapter aims to propose a research proposal in the determinants and the factors influencing App channel selection. It is essential to build an understanding of concepts of social enterprise regarding the Apps marketing and to design an empirical based research to cultivate an understanding in terms of the perceptions and practices of Apps enterprises within the context of marketing. The significance of this research is to provide undergraduate researcher a guideline in proposing a research and forming strategic marketing and tactical decision-making when defining the roles of Apps channel.
Scavenger Receptor MARCO Orchestrates Early Defenses and Contributes to Fungal Containment during Cryptococcal Infection
Authors: Xu Jintao , Flaczyk Adam , Neal Lori M. , Fa Zhenzong , Eastman Alison J. , Malachowski Antoni N. , Cheng Daphne , Moore Bethany B. , Curtis Jeffrey L. , Osterholzer John J. , Olszewski Michal A.
Published: March 2017

The scavenger receptor macrophage receptor with collagenous structure (MARCO) promotes protective innate immunity against bacterial and parasitic infections; however, its role in host immunity against fungal pathogens, including the major human opportunistic fungal pathogen Cryptococcus neoformans, remains unknown. Using a mouse model of C. neoformans infection, we demonstrated that MARCO deficiency leads to impaired fungal control during the afferent phase of cryptococcal infection. Diminished fungal containment in MARCO−/− mice was accompanied by impaired recruitment of Ly6Chigh monocytes and monocyte-derived dendritic cells (moDC) and lower moDC costimulatory maturation. The reduced recruitment and activation of mononuclear phagocytes in MARCO−/− mice was linked to diminished early expression of IFN-γ along with profound suppression of CCL2 and CCL7 chemokines, providing evidence for roles of MARCO in activation of the CCR2 axis during C. neoformans infection. Lastly, we found that MARCO was involved in C. neoformans phagocytosis by resident pulmonary macrophages and DC. We conclude that MARCO facilitates early interactions between C. neoformans and lung-resident cells and promotes the production of CCR2 ligands. In turn, this contributes to a more robust recruitment and activation of moDC that opposes rapid fungal expansion during the afferent phase of cryptococcal infection.
Drift prospecting in the Abitibi Clay Belt: overburden drilling program, methods and costs
Authors: Skinner R G
Published: March 2017

As part of the 1971-72 Federal Winter Special Employment Program, a drilling and geochemical project was initiated in the Abitibi Clay Belt. Dual tube rotary drills and Cobra percussion drills were used along transects in selected areas. The objectives were (1)
to provide employment, (2) to test and compare drilling techniques, (3) to provide regional bedrock and geochemical background information and (4) to study dispersal of minerals in till and other glacial sediment. The average cost of rotary drilling was $7.30 per foot. This cost depended on weather,
design of equipment components, depth and spacing of holes, distance from services, availability of water, etc. Although Cobra percussion drilling costs less per foot, less information was retrieved. Approximately 6,000 samples were processed into various size and specific gravity fractions and
analyzed for Cu, Pb, Zn, Co, Ni, Ag, and Mo.
The raw data from this project are published separately as Geological Survey of Canada Open File Report No. 116. The rotary drilling results include (1) hole location maps, (2) stratigraphic profiles, (3) down-the-hole geochemical logs for the above trace metals, (4) petrographic descriptions of
thin sections of bedrock, and (5) lists of trace metal determinations on bedrock samples. The Cobra results include sample location maps, trace metal determinations for each sample, depths of holes, and sample descriptions.
Compact bias coil systems for geomagnetic measurements
Authors: Serson P H
Published: March 2017

Measurements of the geomagnetic components with the proton magnetometer require a coil system for producting a homogeneous bias field in a direction whlchcan bedetermined accurately. The theoretical advantages of various symrnetrical arrangements of coils are
reviewed, and the precision of mechanical construction necessary to achieve the theoretical performance is estima ted. It is concluded that where a Helmholtz pair would be too large, the most practical choice is a system of four circula.r coaxial coils of equal diarneter.
Geothermal Studies in the Mackenzie Valley
Authors: Judge A S
Published: March 2017

As part of the Environmental-Social Program, Northern Pipelines, the Earth Physics Branch of the Department of Energy, Mines and Resources has carried out field observations of both the shallow and deep thermal regime of the Mackenzie Valley, conducted laboratory
measurements of the thermal properties of subsurface soils and rocks, both frozen and unfrozen, has examined theoretically the thermal ef f ects resulting from changes in the surface energy balance and compared these results with some observed temperature profiles. Such studies are necessary for an
adequate assessment of the environrnental impact of proposed northern construction and development. Through the existing program of the Earth Physics Branch, the work on the thermal behaviour of permafrost areas will continue to add to the volume of available data and enhance our understanding of
the phenomena.
The gravity field of northern Alberta and part of Northwest Territories and Saskatchewan
Authors: Walcott R I , Boyd J B
Published: March 2017

The report area covers National Topographie System sheets 85 S.E. and S. W., all of 84, 83 N. E. and N. W. and 73 N. W. and includes northern Alberta, part of Saskatchewan and a southern part of the Northwest Territories. The major anomaly of the report area is
that related to the Rocky Mountains and is largely, if not entirely, due to the isostatic compensation for the load of the mountains. Other major anomalies are the Fond du Lac and Trout Mountain lows and that associated with the MacDonald Fault. Bouguer density profiling at P eace River , Alberta
gives a Bouguer density for the Cretaceous rocks of 2. 20 +/- .05 g/cm3.
Selección de alumnos y co-pago como factores de segregación escolar: Presentación de tres casos de estudio
Authors: Córdoba Calquin Claudia , Rojas Patuelli Karina , Azócar Weisser Javiera
Published: March 2017

La segregación socioeconómica escolar es un fenómeno que viene despertando creciente interés en nuestro país. La literatura especializada señala que existen tres tipos de factores que podrían incidir en su explicación: segregación residencial, factores socioculturales e institucionales. A continuación se presentarán resultados de una investigación en curso para enseñanza básica. En esta se analiza la segregación escolar de manera focalizada en territorios denominados Unidades Geográficas Acotadas (en adelante UGAs), que se caracterizan por la existencia establecimientos muy cercanos entre sí. Se asume un enfoque mixto, al recoger y analizar información de tipo cuantitativa y cualitativa. El estudio presenta tres casos de estudio en perspectiva comparada: todos ellos están conformados por una escuela municipal y una privada subvencionada. El análisis indica que la segregación socioeconómica observada en éstos se explicaría fundamentalmente por prácticas de selección y copago.
Relatos de pais sobre o uso obrigatório de assentos de segurança infantil no Brasil
Authors: Viana Figueiredo Pedro Paulo , Paris Spink Mary Jane
Published: March 2017

Este artículo toma como punto de partida el uso obligatorio de sistemas de retención infantil (SRI) en Brasil, consagrados en la Resolución 277/08 del Consejo Nacional de Tránsito, que prevé acerca del transporte de niños menores de diez años y el uso del SRI para el transporte de éstos en vehículos de pasajeros. Nuestro objetivo era entender cuál es el efecto que tiene esta ley en su público objetivo, entrevistando a doce padres que tenian niños de hasta siete años y medio y que las transporte en vehículos particulares. Como resultado, concluimos destacando la ambivalencia con respecto al uso de los dispositivos por su público objetivo, en el que dos formas de categorizar los SRI se destacaron: los que perciben el dispositivo como un objeto que promueve la seguridad de los niños y los que lo usan sólo para evitar ser castigados con multas de las agencias reguladoras del tránsito.
La competencia cultural como dimensión de identidad profesional. Un estudio cualitativo en sanitarios y maestros
Authors: Saavedra Macías Francisco Javier , Bascón Díaz Miguel Jesús , Arias Sánchez Samuel , Español Alicia
Published: March 2017

Las competencias culturales (CC) son habilidades profesionales esenciales en comunidades diversas, especialmente en el ámbito educativo y sanitario. Diversos programas de formación en CC han mostrado resultados variados. En este artículo se defiende que las CC deben integrarse en la identidad profesional para que sean eficaces. Analizamos las distintas formas de integración de las CC en seis profesionales de un barrio multicultural mediante una técnica cualitativa llamada análisis de posicionamientos sociales. Se entrevistaron tres maestrosde primaria y tres sanitarios de un centro de atención primaria del mismo barrio. Los resultados mostraron tres formatos de integración de las CC en las identidades profesionales que denominamos: "Competencia cultural crítica", "Igualitarismo cultural y asistencialismo" y "conocimiento cultural relacionado con la práctica profesional".
Incidencia de la dirección escolar sobre el compromiso de los docentes. Un estudio multinivel
Authors: Horn Kupfer Andrea , Murillo Torrecilla Francisco Javier
Published: March 2017

La investigación educativa ha encontrado que la dirección escolar ejerce una influencia sobre el aprendizaje de los estudiantes mediada por otros factores. Uno de esos factores es el compromiso de los docentes. En este artículo se pretende identificar qué prácticas de los directores y directoras tienen una influencia sobre el compromiso de los docentes. Para ello se hace un estudio multinivel con datos de 600 escuelas chilenas de Educación Básica, sus directores, jefes técnicos y 3000 docentes, donde se controlan variables a nivel escolar y de los docentes. Los resultados indican que hay dos prácticas del director o directora que inciden en el compromiso docente: establecer dirección y estructurar el establecimiento para faciitar el trabajo, y apoyo pedagógico.
Editorial. Temáticas emergentes en Psicología y Ciencias Sociales: Propuestas para la reconceptualización en salud, trabajo y educación
Authors: Núñez Carmen Gloria , López Verónica , Ascorra Paula
Published: March 2017

La revista Psicoperspectivas es una edición arbitrada que lanza tres números al año.  Estos números se organizan en una sección temática, convocada previamente por la revista, cuyo objetivo es profundizar en un tópico particular del quehacer investigativo en psicología y ciencias sociales. La otra sección, denominada artículos libres, tiene por objetivo dar a conocer el desarrollo científico que libremente recibe nuestra revista, con independencia de las convocatorias propuestas. El Volumen 15(2) está compuesto íntegramente por artículos libres. Nos pareció pertinente dedicar un número completo de la revista a las inquietudes que investigadores alrededor del mundo formulan a su quehacer investigativo, pues estas inquietudes ponen de manifiesto la variedad de temáticas del área y evidencian las tensiones que la Psicología como ciencia debe enfrentar, a fin de hacer avanzar el conocimiento y posibilitar la transformación social.
Migración circular y trabajo de cuidado: fragmentación de trayectorias laborales de migrantes bolivianas en Tarapacá
Authors: Leiva Gomez Sandra , Ross Orellana Cesar
Published: March 2017

En la región de Tarapacá es usual que migrantes bolivianas sean contratadas como trabajadoras domésticas para realizar trabajo de cuidado de niños o ancianos. Favorecida por la legislación vigente y por la cercanía geográfica, nacionales bolivianas realizan una migración circular con un ritmo de tres meses. Las migrantes no buscan establecerse en el país, sino que efectúan una migración temporal y repetitiva. Mediante entrevistas aplicadas en la ciudad de Iquique se analiza la trayectoria laboral de estas migrantes circulares. Se observa una alta fragmentación de su trayectoria laboral, la que se origina fundamentalmente por el no pago de sus remuneraciones, las extensas jornadas de trabajo a las que son sometidas y el maltrato que reciben de parte de sus empleadores. Se concluye en primer lugar que la migración circular del trabajo de cuidado trae altos costos personales y familiares para las migrantes, en tanto genera una gran incertidumbre y la posibilidad de extender su temporada de migración más allá de la deseada. En segundo lugar, se establece la necesidad de formular políticas públicas migratorias específicas para este grupo de trabajadoras.
Liderazgo transaccional y transformacional de voluntarios jóvenes y adultos de Mar del Plata
Authors: Silva Peralta Yamila Fernanda , Olsen Cintia Daniela , Pezzi Lucía , Sanjurjo Noelia Andrea
Published: March 2017

Esta investigación exploratoria-descriptiva-comparativa tuvo como finalidad caracterizar el liderazgo transaccional y transformacional en voluntarios de la ciudad de Mar del Plata y, específicamente, comparar el liderazgo en voluntarios jóvenes y adultos. Para ello se administró el Multifactor Leadership Questionnaire (MLQ-5x). La muestra de esta investigación fue intencional, no probabilística, compuesta por voluntarios jóvenes y adultos de organizaciones asociativas de la ciudad de Mar del Plata. Se hipotetizó que en el grupo de voluntarios jóvenes el liderazgo sería más transformacional que en grupo de voluntarios adultos y que éste último sería más transaccional. Se calculó descriptivos básicos y se aplicó pruebas no paramétricas para identificar diferencias por grupos. Los resultados indican que sólo habría diferencias críticas entre los voluntarios menores de 30 años y los voluntarios de 60 años o más, en la dimensión transaccional Dirección por Excepción Pasiva. En las restantes dimensiones transaccionales, transformacionales y laissez faire no se encontraron diferencias significativas entre grupos.
Bienestar psicológico, estrategias de afrontamiento y apoyo social en cuidadores informales
Authors: García Felipe E. , Manquián Esteban , Rivas Gisela
Published: March 2017

El propósito del presente estudio fue evaluar la influencia de las estrategias de afrontamiento y el apoyo social sobre el bienestar psicológico en cuidadores informales la provincia de Concepción, Chile. Fueron encuestados 194 personas, 131 mujeres (67,5%) y 63 varones (32,5%), entre 18 y 78 años de edad. Se utilizaron el inventario Bríef COPE para evaluar las estrategias de afrontamiento, la Flourishing Scale de Diener para evaluar bienestar psicológico, la Escala Multidimensional de Apoyo Social Percibido (MSPSS) para evaluar el apoyo social percibido, además de un cuestionario socio-demográfico. Se encontróuna correlación significativa entre las estrategias de planificación y aceptación y del apoyo social percibido con el bienestar psicológico. El apoyo de los amigos resultó ser el único predictor significativo del bienestar psicológico. Entre las estrategias de afrontamiento, la aceptación fue el único predictor significativo. El apoyo social resultó un mediador total entre la aceptación y el bienestar psicológico. Estos resultados refuerzan la importancia del apoyo social no solo para disminuir el malestar de los cuidadores, sino también para promover su bienestar.
Cuidar se escribe en femenino: Redes de cuidado en hogares de madres migrantes
Authors: Hernández Cordero Ana Lucía
Published: March 2017

En el marco actual de las migraciones femeninas, abordar la organización social del cuidado y  los ajustes en las dinámicas familiares, permiten problematizar el modelo convencional de ma-ternidad, centrado en que la responsabilidad del cuidado de los hijos está a cargo, de manera exclusiva, de la madre biológica. Modelo sobre el cual se valoran y entienden las dinámicas familiares y la relaciones materno-filiales en nuestra sociedad, como es el caso de las materni-dad trasnacional. En este texto, me interesa plantear las estrategias que las madres migrantes emplean para cuidar de sus hijos que quedan en origen, prestando atención a las prácticas que se confrontan con ese modelo de madre. Para tal propósito, recurro a las informaciones de tipo cualitativo, recopiladas a lo largo de los años 2009-2012 con madres guatemaltecas que viven en Madrid. Entre los hallazgos encontrados, se hace evidente que las familias de estas mujeres conforman una estructura, basada en una solidaridad inter-generacional, que colectiviza el cuidado, en la que la madre biológica es una pieza clave que cuenta con la colaboración activa de otras mujeres del grupo familiar.
Ciudadanía y cuidado en España: el dilema trabajo/familia según las madres trabajadoras
Authors: Armijo Garrido Lorena
Published: March 2017

En la última década, el dilema de la conciliación trabajo/familia ha tenido un lugar destacado en los estudios sobre los modelos de bienestar social, especialmente, por los procesos de reestructuración de los Estados de Bienestar europeos.  La participación laboral femenina y el mayor interés de los hombres por el cuidado de sus hijos ha sido interpretado como una señal de los avances en materia de igualdad de género, sin embargo, la provisión de recursos de conciliación siguen siendo limitada, pese al creciente aumento de la demanda de servicios de atención a dependientes. En este artículo  presento los resultados de dos investigaciones cualitativas consecutivas realizadas a 47 madres trabajadoras españolas de diferentes clases sociales en el contexto de la crisis económica actual.  Los resultados indican que del discurso de las mujeres se desprende una tensión entre los discursos públicos de conciliación y las experiencias de cuidado. La salida a esta resistencia emerge desde las propias mujeres en un intento por superar la lógica dual del trabajo y la familia. Las madres trabajadoras comprenden el dilema de la conciliación como una relación fluida de responsabilidades y derechos compartidos por varios actores sociales. Para su realización, este continuo requiere de un abanico amplio de recursos de conciliación institucionalizado que modifique la actual influencia del género sobre los derechos sociales.
Intervenciones psicosociales con personas en situación de calle: El cuidado como categoría de análisis
Authors: Di Iorio Jorgelina , Seidmann Susana , Gueglio Constanza , Rigueiral Gustavo
Published: March 2017

Desde el entramado institucional que ejecuta la política socio-asistencial con población adulta en situación de calle en la Ciudad de Buenos Aires, se implementan prácticas de intervención mediadas por representaciones sociales sobre las personas en situación de calle (PSC) cristalizadas en la imagen de irresponsabilidad, vagancia e inadecuación del yo. La cronicidad de la situación de calle se traduce en vínculos sociales transitorios y labilidad afectiva, configurándose prácticas de intervención en las que los beneficiarios, en tanto que objetos de control y normalización, se configuran como receptores de cuidados. Con metodologías participativas, en el marco de una investigación-acción sobre las trayectorias de personas en situación de calle, se presenta, desde la perspectiva de los protagonistas, la problematización de las intervenciones y la visibilización de un conjunto de prácticas de autocuidado que las personas en situación de calle desarrollan en su vida cotidiana, incluyendo en el campo de problemas sobre el cuidado una lectura que no lo reduzca al plano de la tarea o trabajo, sino que lo aborde como derecho y construcción de ciudadanía.
Perfiles de estrés postraumático en adolescentes abusados sexualmente
Authors: Guerra Cristóbal , Plaza Hugo , Farkas Chamarrita
Published: March 2017

Existe alta variabilidad en las reacciones emocionales presentes en víctimas de abuso sexual, por tanto urge conocer los factores que podrían explicar dicha variabilidad y utilizar esa información para generar tratamientos y políticas públicas más específicos. El objetivo del presente estudio fue identificar distintos perfiles de víctimas adolescentes de acuerdo a su sintomatología de estrés postraumático. Participaron 123 adolescentes víctimas de abuso sexual de entre 12 y 17 años (M = 14,13, DT = 1,75). Los resultados de un análisis de conglomerados arrojaron tres grupos de adolescentes con alta, moderada y baja sintomatología. Los tres grupos mostraron diferencias estadísticamente significativas en función del género, las creencias de autoeficacia y la percepción de apoyo social. Así mismo, se aprecian algunas tendencias que otorgan relevancia a la frecuencia de los abusos y a la relación con  el agresor. Estos resultados dan cuenta de perfiles diferenciados de víctimas que pudiera servir para complejizar el debate asociado a las políticas en materia de infancia y para los programas de reparación a lo largo del país
EPR effect based nanocarriers targeting for treatment of cancer
Authors: Gajbhiye Kavita Rai , Gajbhiye J M
Published: March 2017

The enhanced permeability and retention (EPR) effect is a unique phenomenon of solid tumors related to their anatomical and pathophysiological differences from normal tissues. In solid tumors, angiogenesis leads to high vascular density. Large gaps exist between endothelial cells in tumor blood vessels, which lead to selective extravasations and retention of macromolecular drugs. This EPR effect served as a basis for development of macromolecular anticancer therapy. There are various factors, which lead to a significantly increased EPR effect and enhanced antitumor drug effects as well. This review discusses the unique anatomy of tumor vessels, molecular mechanisms of factors related to the EPR effect and the role of the EPR effect in the intratumoral delivery of protein and peptide drugs, macromolecular drugs and drug-loaded long-circulating nanocarriers.
Seasonal variations of triple oxygen isotopic compositions of atmospheric sulfate, nitrate, and ozone at Dumont d'Urville, coastal Antarctica
Authors: Ishino Sakiko , Hattori Shohei , Savarino Joel , Jourdain Bruno , Preunkert Susanne , Legrand Michel , Caillon Nicolas , Barbero Albane , Kuribayashi Kota , Yoshida Naohiro
Published: March 2017

Abstract. Triple oxygen isotopic compositions (Δ17O  = δ17O − 0.52  ×  δ18O) of atmospheric sulfate (SO42−) and nitrate (NO3−) in the atmosphere reflect the relative contribution of oxidation pathways involved in their formation processes, which potentially provides information to reveal missing reactions in atmospheric chemistry models. However, there remain many theoretical assumptions for the controlling factors of Δ17O(SO42−) and Δ17O(NO3−) values in those model estimations. To test one of those assumption that Δ17O values of ozone (O3) have a flat value and do not influence the seasonality of Δ17O(SO42−) and Δ17O(NO3−) values, we performed the first simultaneous measurement of Δ17O values of atmospheric sulfate, nitrate, and ozone collected at Dumont d'Urville (DDU) Station (66°40′ S, 140°01′ E) throughout 2011. Δ17O values of sulfate and nitrate exhibited seasonal variation characterized by minima in the austral summer and maxima in winter, within the ranges of 0.9–3.4 and 23.0–41.9 ‰, respectively. In contrast, Δ17O values of ozone showed no significant seasonal variation, with values of 26 ± 1 ‰ throughout the year. These contrasting seasonal trends suggest that seasonality in Δ17O(SO42−) and Δ17O(NO3−) values is not the result of changes in Δ17O(O3), but of the changes in oxidation chemistry. The trends with summer minima and winter maxima for Δ17O(SO42−) and Δ17O(NO3−) values are caused by sunlight-driven changes in the relative contribution of O3 oxidation to the oxidation by HOx, ROx, and H2O2. In addition to that general trend, by comparing Δ17O(SO42−) and Δ17O(NO3−) values to ozone mixing ratios, we found that Δ17O(SO42−) values observed in spring (September to November) were lower than in fall (March to May), while there was no significant spring and fall difference in Δ17O(NO3−) values. The relatively lower sensitivity of Δ17O(SO42−) values to the ozone mixing ratio in spring compared to fall is possibly explained by (i) the increased contribution of SO2 oxidations by OH and H2O2 caused by NOx emission from snowpack and/or (ii) SO2 oxidation by hypohalous acids (HOX  =  HOCl + HOBr) in the aqueous phase.
The influence of deep convection on HCHO and H2O2 in the upper troposphere over Europe
Authors: Bozem Heiko , Pozzer Andrea , Harder Hartwig , Martinez Monica , Williams Jonathan , Lelieveld Jos , Fischer Horst
Published: March 2017

Abstract. Deep convection is an efficient mechanism for vertical trace gas transport from the Earth's surface to the upper troposphere (UT). The convective redistribution of short-lived trace gases emitted at the surface typically results in a C-shaped profile. This redistribution mechanism can impact photochemical processes, e.g. ozone and radical production in the UT on a large scale due to the generally longer lifetimes of species like formaldehyde (HCHO) and hydrogen peroxide (H2O2), which are important HOx precursors (HOx = OH + HO2 radicals). Due to the solubility of HCHO and H2O2 their transport may be suppressed as they are efficiently removed by wet deposition. Here we present a case study of deep convection over Germany in the summer of 2007 within the framework of the HOOVER II project. Airborne in-situ measurements within the in- and outflow regions of an isolated thunderstorm provide a unique data set to study the influence of deep convection on the transport efficiency of soluble and insoluble trace gases. Comparing the in- and outflow indicates almost undiluted transport of insoluble trace gases from the boundary layer to the UT. The ratios of out/inflow of CO and CH4 are 0.94 ± 0.04 and 0.99 ± 0.01, respectively. For the soluble species HCHO and H2O2 these ratios are 0.55 ± 0.09 and 0.61 ± 0.08, respectively, indicating partial scavenging and washout. Chemical box model simulations show that post-convection secondary formation of HCHO and H2O2 cannot explain their enhancement in the UT. A plausible explanation, in particular for the enhancement of the highly soluble H2O2, is degassing from cloud droplets during freezing, which reduces the retention coefficient.
Oxygenated volatile organic carbon in the western Pacific convective centre: ocean cycling, air–sea gas exchange and atmospheric transport
Authors: Schlundt Cathleen , Marandino Christa A. , Tegtmeier Susann , Lennartz Sinikka T. , Bracher Astrid , Cheah Wee , Krüger Kirstin , Quack Birgit
Published: March 2017

Abstract. A suite of oxygenated volatile organic compounds (OVOCs – acetaldehyde, acetone, propanal, butanal and butanone) were measured concurrently in the surface water and atmosphere of the South China Sea and Sulu Sea in November 2011. A strong correlation was observed between all OVOC concentrations in the surface seawater along the entire cruise track, except for acetaldehyde, suggesting similar sources and sinks in the surface ocean. Additionally, several phytoplankton groups, such as haptophytes or pelagophytes, were also correlated to all OVOCs indicating that phytoplankton may be an important source for marine OVOCs in the South China and Sulu Seas. Humic and protein like fluorescent dissolved organic matter (FDOM) components seemed to be additional precursors for butanone and acetaldehyde. The atmospheric OVOC mixing ratios were relative high compared with literature values, suggesting the coastal region of North Borneo as a local hot spot for atmospheric OVOCs. The flux of atmospheric OVOCs was largely into the ocean for all 5 gases, with a few important exceptions near the coast of Borneo. The calculated amount of OVOCs entrained into the ocean seemed to be an important source of OVOCs to the surface ocean. When the fluxes were out of the ocean, marine OVOCs were found to be enough to control the local measured OVOC distribution in the atmosphere. Based on our model calculations, at least 0.4 ppb of marine derived acetone and butanone can reach the upper troposphere, where they may have an important influence on hydrogen oxide radical formation over the western Pacific Ocean.
The filter-loading effect by ambient aerosols in filter absorption photometers depends on the coating of the sampled particles
Authors: Drinovec Luka , Gregorič Asta , Zotter Peter , Wolf Robert , Bruns Emily Anne , Prévôt André S. H. , Petit Jean-Eudes , Favez Olivier , Sciare Jean , Arnold Ian J. , Chakrabarty Rajan K. , Moosmüller Hans , Filep Agnes , Močnik Griša
Published: March 2017

Abstract. Black carbon is a primary aerosol tracer for high-temperature combustion emissions and can be used to characterize the time evolution of its sources. It is correlated with a decrease in public health and contributes to atmospheric warming. Black carbon measurements are usually conducted with absorption filter photometers, which are prone to several artifacts, including the filter-loading effect – a saturation of the instrumental response due to the accumulation of the sample in the filter matrix. In this paper, we investigate the hypothesis that this filter-loading effect depends on the optical properties of particles present in the filter matrix, especially on the black carbon particle coating. We conducted field campaigns in contrasting environments to determine the influence of source characteristics, particle age and coating on the magnitude of the filter-loading effect. High-time-resolution measurements of the filter-loading parameter in filter absorption photometers show daily and seasonal variations of the effect. The variation is most pronounced in the near-infrared region, where the black carbon mass concentration is determined. During winter, the filter-loading parameter value increases with the absorption Ångström exponent. It is suggested that this effect is related to the size of the black carbon particle core as the wood burning (with higher values of the absorption Ångström exponent) produces soot particles with larger diameters. A reduction of the filter-loading effect is correlated with the availability of the coating material. As the coating of ambient aerosols is reduced or removed, the filter-loading parameter increases. Coatings composed of ammonium sulfate and secondary organics seem to be responsible for the variation of the loading effect. The potential source contribution function analysis shows that high values of the filter-loading parameter in the infrared are indicative of local pollution, whereas low values of the filter-loading parameter result from ageing and coating during long-range transport. Our results show that the filter-loading parameter can be used as a proxy for determination of the particle coating, thus allowing for differentiation between local/fresh and transported/aged particles.
Quantitation of 11 alkylamines in atmospheric samples: separating structural isomers by ion chromatography
Authors: Place Bryan K. , Quilty Aleya T. , Di Lorenzo Robert A. , Ziegler Susan E. , VandenBoer Trevor C.
Published: March 2017

Abstract. Amines are important drivers in particle formation and growth, which have implications for Earth's climate. In this work, we developed an ion chromatographic (IC) method using sample cation-exchange preconcentration for separating and quantifying the nine most abundant atmospheric alkylamines (monomethylamine (MMAH+), dimethylamine (DMAH+), trimethylamine (TMAH+), monoethylamine (MEAH+), diethylamine (DEAH+), triethylamine (TEAH+), monopropylamine (MPAH+), isomonopropylamine (iMPAH+), and monobutylamine (MBAH+)) and two alkyl diamines (1, 4-diaminobutane (DABH+) and 1, 5-diaminopentane (DAPH+)). Further, the developed method separates the suite of amines from five common atmospheric inorganic cations (Na+, NH4+, K+, Mg2+, Ca2+). All 16 cations are greater than 95 % baseline resolved and elute in a runtime of 35 min. This paper describes the first successful separation of DEAH+ and TMAH+ by IC and achieves separation between three sets of structural isomers, providing specificity not possible by mass spectrometry. The method detection limits for the alkylamines are in the picogram per injection range and the method precision (±1σ) analyzed over 3 months was within 16 % for all the cations. The performance of the IC method for atmospheric application was tested with biomass-burning (BB) particle extracts collected from two forest fire plumes in Canada. In extracts of a size-resolved BB sample from an aged plume, we detected and quantified MMAH+, DMAH+, TMAH+, MEAH+, DEAH+, and TEAH+ in the presence of Na+, NH4+, and K+ at molar ratios of amine to inorganic cation ranging from 1 : 2 to 1 : 1000. Quantities of DEAH+ and DMAH+ of 0.2–200 and 3–1200 ng m−3, respectively, were present in the extracts and an unprecedented amine-to-ammonium molar ratio greater than 1 was observed in particles with diameters spanning 56–180 nm. Extracts of respirable fine-mode particles (PM2. 5) from a summer forest fire in British Columbia in 2015 were found to contain iMPAH+, TMAH+, DEAH+ and TEAH+ at molar ratios of 1 : 300 with the dominant cations. The amine-to-ammonium ratio in a time series of samples never exceeded 0.15 during the sampling of the plume. These results and an amine standard addition demonstrate the robustness and sensitivity of the developed method when applied to the complex matrix of BB particle samples. The detection of multiple alkylamines in the analyzed BB samples indicates that this speciation and quantitation approach can be used to constrain BB emission estimates and the biogeochemical cycling of these reduced nitrogen species.
Rocket in situ observation of equatorial plasma irregularities in the region between E and F layers over Brazil
Authors: Savio Odriozola Siomel , de Meneses Jr. Francisco Carlos , Muralikrishna Polinaya , Pimenta Alexandre Alvares , Kherani Esfhan Alam
Published: March 2017

Abstract. A two-stage VS-30 Orion rocket was launched from the equatorial rocket launching station in Alcântara, Brazil, on 8 December 2012 soon after sunset (19:00 LT), carrying a Langmuir probe operating alternately in swept and constant bias modes. At the time of launch, ground equipment operated at equatorial stations showed rapid rise in the base of the F layer, indicating the pre-reversal enhancement of the F region vertical drift and creating ionospheric conditions favorable for the generation of plasma bubbles. Vertical profiles of electron density estimated from Langmuir probe data showed wave patterns and small- and medium-scale plasma irregularities in the valley region (100–300 km) during the rocket upleg and downleg. These irregularities resemble those detected by the very high frequency (VHF) radar installed at Jicamarca and so-called equatorial quasi-periodic echoes. We present evidence suggesting that these observations could be the first detection of this type of irregularity made by instruments onboard a rocket.