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Search Results: 1 - 10 of 130651 matches for " Elisabet V. Wehncke "
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Revealing an Endemic Herbivore-Palm Interaction in Remote Desert Oases of Baja California  [PDF]
Elisabet V. Wehncke, Xavier López-Medellín, Michael Wall, Exequiel Ezcurra
American Journal of Plant Sciences (AJPS) , 2013, DOI: 10.4236/ajps.2013.42A060

In the Central Desert of northern Baja California, blue fan palm populations (Brahea armata) are found as isolated oases on mountaintops and along canyons with ephemeral flow conditions. Here, the effect of the interaction between the larva of an endemic moth, Litoprosopus bajaensis, and this endemic blue fan palm was documented for the first time. We registered the phenology of palms by counting the number of shoots with flowers or fruits, assessing their damage and calculating the reproductive success per individual palm within three populations: San Pedro Martir, Catavi?a, and La Libertad. Palm populations were severely impacted by this larva, causing high damage to the inflorescences. No differences were found in the number of inflorescence stems produced and damaged among study sites; but the reproductive success of palms was significantly higher in Catavi?a than in the other sites during the entire sampling period, and consequently an important proportion of stems escaped from the herbivore predation. We suggest that differences among sites may be explained by the fact that Catavi?a is the only alluvial canyon and can be considered an area of high nutrient uptake, resource availability, and rooting depths. In contrast the other two are bedrock canyons, where water runs intensely, sweeping away great portions of the nearby vegetation. Catavi?a received the highest precipitation during the winter season of 2010 allowing a continuous production of inflorescence stems and fruits. This preliminary study reveals a new endemic interaction, it occurrence at population and regional levels, and highlights the role of desert oases as resource patches and connectivity pathways for mobile insects. Finally, it also highlights the effects of different water flow dynamics and water pulses in providing an opportunity window of escape from predation for host plant species living in desert environments.

Análisis estadístico de polimorfismos genéticos en estudios epidemiológicos
Iniesta,Raquel; Guinó,Elisabet; Moreno,Víctor;
Gaceta Sanitaria , 2005, DOI: 10.1590/S0213-91112005000400011
Abstract: analysis of genetic polymorphisms allows the genes that confer susceptibility to diseases to be analyzed. this paper presents the nomenclature used in genetic epidemiology literature and a basic strategy for statistical analysis of epidemiological studies that use genetic markers. first, a descriptive analysis of a single nucleotide polymorphism is presented, with assessment of hardy-weinberg equilibrium. next, methods to assess the association with disease are presented. to do this, logistic regression models are used and alternative models of inheritance are explored. finally, methods for the simultaneous analysis of multiple polymorphisms are presented: haplotype frequency estimation and analysis of disease association.
Internet-Based Support and Coaching for Adolescents and Young Adults with Neuropsychiatric Disorders—The Implementation of an Intervention from an Organizational Perspective  [PDF]
Nanna Gillberg, Elisabet Wentz
Health (Health) , 2017, DOI: 10.4236/health.2017.91006
Abstract: There is a documented and often unmet need for interventions aimed at supporting young people with attention-deficit/hyperactivity disorder (ADHD) and/or autism spectrum disorder (ASD) in their transition between adolescence and adulthood. Difficulties with social interaction, initiation difficulties, and impairments in executive function can complicate visits at a clinic, i.e. traditional treatment, for individuals with neuropsychiatric disorders (NPD). A model for internet-based support and coaching aimed at young people with ASD and/or ADHD was developed and tested at three treatment sites in western Sweden. The implementation was analyzed against an inventory according to which implementations are more likely to be successful if an intervention: 1) has advantages compared to other existing methods, 2) matches the individual and organizational values, norms and work practices of its recipients, 3) is perceived as easy to use, and 4) is adaptable to local conditions and the recipients’ needs. Data were collected through group interviews with professionals involved in the implementation of the intervention. The implementation of the intervention showed promising results on measures such as access, delivery/quality of healthcare services, and equality of distribution of healthcare services. The identified impediments to successful implementation related to a wide range of factors and levels, including the design of the intervention, technical issues, attitudes of staff, organizational culture, and organizational structure at the implementation sites in terms of patient stock, work division, and resource allocation. The results are consistent with previous studies that stress the need for multi-component implementation strategies.
Equidad y reformas de los sistemas de salud en Latinoamérica
Vargas, Ingrid;Vázquez, Maria Luisa;Jané, Elisabet;
Cadernos de Saúde Pública , 2002, DOI: 10.1590/S0102-311X2002000400003
Abstract: the aim of any health care system is to help improve the people's health, and to do so as efficiently as possible. in order to improve the efficiency and equity of health services provision, many countries around the world have implemented reforms, including several latin american nations. however similar the objectives may appear, the various ways societies implement such reforms reflect different values and concepts. this article analyzes the egalitarian and neoliberal values underlying different concepts of equity in health care. the authors develop criteria to interpret selected health services funding and provision strategies in latin american health system reforms. these criteria are then applied to health care financing and delivery policies under the reforms currently being implemented in colombia and costa rica.
Equidad y reformas de los sistemas de salud en Latinoamérica
Vargas Ingrid,Vázquez Maria Luisa,Jané Elisabet
Cadernos de Saúde Pública , 2002,
Abstract: El fin último de cualquier sistema de salud es contribuir a la mejora de la salud de la población y hacerlo de la manera más eficiente posible. Buscando mejorar las condiciones de eficiencia y equidad en que se prestan los servicios de salud, numerosos países en todo el mundo, incluyendo los latinoamericanos, han implementado reformas. A pesar de la aparente coincidencia en los objetivos de las reformas, la forma en que se implementan responden a conceptos y valores diferentes. En este artículo analizamos los valores, igualitarios y neoliberales, subyacentes en los distintos conceptos de equidad. A partir de ellos desarrollamos criterios que nos permitan interpretar algunas de las estrategias, financiamiento y prestación de los servicios de salud aplicados por las reformas de los sistemas de salud en Latinoamérica. Estos criterios son aplicados a las políticas de financiamiento y prestaciones de las reformas aplicadas en los sistemas de salud de Colombia y Costa Rica.
Life cycle of Misumenops pallida (Araneae, Thomisidae)
Minervino, Elisabet;
Memórias do Instituto Oswaldo Cruz , 1993, DOI: 10.1590/S0074-02761993000100009
Abstract: postembryonic development of misumenops pallida (keyserling) (araneae, thomisidae), one of the most abundant predator species in soybean fields in buenos aires province (argentina) was studied. the life cycle was observed in the laboratory from egg sacs collected in the field, and from egg sacs spined in the laboratory by gravid females collected in the field. results indicated that instar length and feeding rate increased throughout the life cycle being higher in females than in males. greater mortality was observed to third and fourth instars decreasing thereafter. these results may contribute to deternmine the efficiency of this species as a natural enemy of insect pests of soybean.
Climate and Tickborne Encephalitis
Elisabet Lindgren
Ecology and Society , 1998,
Abstract: Climatic changes are projected to alter the abundance, dynamics, and geographical distribution of many vector-borne diseases in human populations. Tick-borne diseases such as Lyme disease and tick-borne encephalitis (TBE) are a growing concern in northern Europe and the United States. The impact of a future climate change on the transmission of tick-borne diseases is not known. To make such assumptions, more empirical data are needed on the relations between short-term fluctuations in contemporary weather and disease incidence. This paper analyzes relations between daily minimum and maximum temperatures, monthly precipitation, and TBE incidence during a 36-yr period in Stockholm County, a high-endemic region for TBE in Sweden. Multiple regression analyses were performed, with temperature variables expressed as number of days per winter or spring - summer - fall season with temperatures above, below, or in the interval between different temperature limits. The limits used for daily minimum temperatures represent bioclimatic thresholds of importance for pathogen transmission. To adjust for the length of the tick's life cycle, each TBE incidence rate was related to meteorological data over two consecutive years. Results reveal that increased incidence of tick-borne encephalitis is related to a combination of two successive years of more days with temperatures permitting prolonged seasonal tick activity and, hence, pathogen transmission (i.e., daily minimum temperatures above 5oC-10oC), and a mild winter preceding the year before the incidence year (i.e., fewer winter days with minimum temperatures below -7oC). Alternative explanations of the results are discussed. Findings of this study suggest that a climate change may extend the seasonal range and intensify the endemicity of tick-borne diseases, in particular, at northern latitudes.
V lkomna (n stan) allihopa! Mellan kategoriserade olikheter och radikal skillnad
Elisabet Langmann
Utbildning & Demokrati : Tidsskrift f?r Didaktik och Utbildningspolitik , 2010,
Abstract: Welcome (almost) everyone! Between social categories and radicaldifference. This article explores the dilemmas involved in welcoming differences in education without simultaneously fostering structural conditions that reproduce discrimination and intolerance. Taking an excerpt from Fanny Abj rnsson’s doctoral thesis I en klass f r sig (2004) and Jacques Derrida’s deconstructions of the concept of hospitality as points of departure, the article unfolds in three parts. First, I make a distinction between two ways of responding to the otherness of the other: a conditional welcoming of social categories, and an unconditional welcoming of radical difference. These are further explored in part two. In part three I turn to he “double responsiveness” Derrida highlights as inherent in the paradoxes of hospitality, and ask how it is possible to act within this tension in relation to education. I argue that the welcoming of differences in education demands sensitivity to ambiguity and uncertainty, as well as tact and improvisation in concrete pedagogical situations.
Erratum: Early ERP signature of hearing impairment in visual rhyme judgment
Elisabet Classon
Frontiers in Psychology , 2013, DOI: 10.3389/fpsyg.2013.00897
Monoidal structure of the category of u$_q^+$-modules
Elisabet Gunnlaugsdottir
Mathematics , 2000,
Abstract: We study the finite dimensional modules on the half-quantum group u_q^+ at a root of unity q, whose action can be extended to u_q (quotient of the quantized enveloping algebra of sl_2). We derive decomposition formulas of the tensor product of indecomposable u_q^+-modules, which includes the cases of the universal and the quantized universal enveloping algebra of sl_2 for q not a root of unity. We also prove that simple modules on u_q correspond exactly to the extendable non projective u_q^+-modules. We thus establish decomposition formulas for the tensor product of simple u_q-modules.
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