Solução da equação de difusão-advecção para uma CLP não-homogênea e não-estacionária pelo método GILTT

Neste trabalho é apresentada a solução da equação de difusão-advecção transiente para simular a dispersão de poluentes na Camada Limite Planetária. A solução é obtida através do método analítico GILTT (Generalized Integral Laplace Transform Technique) e da técnica de inversão numérica da quadratura de Gauss. A validação da solução é comprovada utilizando as concentraçãos obtidas a partir do modelo com as obtidas experimentalmente pelo Experimento de Copenhagen. Nesta comparação foram utilizados os perfis de vento potencial e logaritmo e os parâmetros de turbulência propostos por Degrazia et al (1997) [19] e (2002) [17]. Os melhores resultados foram obtidos utilizando o perfil de vento potencial e o coeficiente de difusão propostos por Degrazia et al (1997). A influência da velocidade vertical é mostrada através do comportamento das concentrações de poluentes na pluma. Além disso, as velocidades verticais e longitudinais geradas pelo Large Eddy Simulation (LES) foram colocadas no modelo para poder simular uma camada limite turbulenta mais realística, a qual apresentou resultados satisfatórios quando comparados com os disponíveis na literatura.

Functional XPB/RAD25 redundancy in Arabidopsis genome: characterization of AtXPB2 and expression analysis

The xeroderma pigmentosum complementation group B (XPB) protein is involved in both DNA repair and transcription in human cells. It is a component of the transcription factor IIH (TFIIH) and is responsible for DNA helicase activity during nucleotide (nt) excision repair (NER). Its high evolutionary conservation has allowed identification of homologous proteins in different organisms, including plants. In contrast to other organisms, Arabidopsis thaliana harbors a duplication of the XPB orthologue (AtXPB1 and AtXPB2), and the proteins encoded by the duplicated genes are very similar (95% amino acid identity). Complementation assays in yeast rad25 mutant strains suggest the involvement of AtXPB2 in DNA repair, as already shown for AtXPB1, indicating that these proteins may be functionally redundant in the removal of DNA lesions in A. thaliana. Although both genes are expressed in a constitutive manner during the plant life cycle, Northern blot analyses suggest that light modulates the expression level of both XPB copies, and transcript levels increase during early stages of development. Considering the high similarity between AtXPB1 and AtXPB2 and that both of predicted proteins may act in DNA repair, it is possible that this duplication may confer more flexibility and resistance to DNA damaging agents in thale cress. (C) 2004 Elsevier B.V. All rights reserved.

Sindrome da insensitività completa agli androgeni e massa ossea. Valutazione basale e longitudinale dopo oltre 12 mesi di terapia estrogenica

L’osso è un tessuto target per estrogeni ed androgeni ma l’azione singola e la sinergia tra i due non sono compresi interamente. Le donne affette da Sindrome da Insensititvità Completa agli Androgeni (CAIS) hanno un cariotipo 46XY ma presentano una completa inattività del recettore degli androgeni. Nello studio abbiamo valutato la densità minerale ossea (BMD) in un gruppo di donne adulte CAIS sottoposte a gonadectomia al momento della prima visita e dopo almeno 12 mesi di terapia estrogenica. Il principale obiettivo è stato di valutare se, nelle donne CAIS, una ottimale estrogenizzazione fosse sufficiente a mantenere/ripristinare una adeguata BMD. 24 donne CAIS sono state sottoposte a DXA lombare e femorale all'arruolamento nello studio (t1), dopo terapia estrogenica di 12mesi(t2) e oltre (t>2). Sono state valutate: BMD(g/cm2) e Zscore lombare e femorale (a t1,t2 e t>2) E’ stato considerato se fossero rilevanti l’essere (gruppo1) o meno (gruppo 2) in terapia ormonale al t1 e l’età della gonadectomia. Risultati: Al t1 BMD e Zscore lombari e femorale erano significativamente ridotti rispetto alla popolazione controllo nel campione totale (lombare 0,900+0,12; -1,976+0,07, femorale 0,831 + 0,14; -1,385+0,98), nel gruppo 1 (lombare 0,918+0,116;-1,924+0,79, femorale 0,824+0,13;-1,40+1,00) e nel gruppo 2 (lombare 0.845+0,11 -2,13+1,15, femorale 0,857+0,17;-1,348+1,05) Al t2 e t>2 la BMD lombare è risultata significativamente aumentata (p=0,05 e p=0,02). Zscore lombare, BMD e Zscore femorale non hanno dimostrato variazioni significative. L’aver effettuato la gonadectomia in età post puberale è associato a Zscore lombare e femorale più elevati al t1. Nelle donne CAIS la terapia estrogenica è indispensabile per prevenire un'ulteriore perdita di BMD ma, da sola, non sembra in grado di ripristinare normali valori di BMD.I risultati del nostro studio supportano la tesi che gli androgeni, mediante l’azione recettoriale, abbiano un' azione diretta nel raggiungere e mantenere la BMD.

Methods and representativeness of a European survey in children and adolescents: the KIDSCREEN study

BACKGROUND: The objective of the present study was to compare three different sampling and questionnaire administration methods used in the international KIDSCREEN study in terms of participation, response rates, and external validity. METHODS: Children and adolescents aged 8-18 years were surveyed in 13 European countries using either telephone sampling and mail administration, random sampling of school listings followed by classroom or mail administration, or multistage random sampling of communities and households with self-administration of the survey materials at home. Cooperation, completion, and response rates were compared across countries and survey methods. Data on non-respondents was collected in 8 countries. The population fraction (PF, respondents in each sex-age, or educational level category, divided by the population in the same category from Eurostat census data) and population fraction ratio (PFR, ratio of PF) and their corresponding 95% confidence intervals were used to analyze differences by country between the KIDSCREEN samples and a reference Eurostat population. RESULTS: Response rates by country ranged from 18.9% to 91.2%. Response rates were highest in the school-based surveys (69.0%-91.2%). Sample proportions by age and gender were similar to the reference Eurostat population in most countries, although boys and adolescents were slightly underrepresented (PFR <1). Parents in lower educational categories were less likely to participate (PFR <1 in 5 countries). Parents in higher educational categories were overrepresented when the school and household sampling strategies were used (PFR = 1.78-2.97). CONCLUSION: School-based sampling achieved the highest overall response rates but also produced slightly more biased samples than the other methods. The results suggest that the samples were sufficiently representative to provide reference population values for the KIDSCREEN instrument.

Safety and Efficacy of Lysergic Acid Diethylamide-Assisted Psychotherapy for Anxiety Associated With Life-threatening Diseases

A double-blind, randomized, active placebo-controlled pilot study was conducted to examine safety and efficacy of lysergic acid diethylamide (LSD)-assisted psychotherapy in 12 patients with anxiety associated with life-threatening diseases. Treatment included drug-free psychotherapy sessions supplemented by two LSD-assisted psychotherapy sessions 2 to 3 weeks apart. The participants received either 200 μg of LSD (n = 8) or 20 μg of LSD with an open-label crossover to 200 μg of LSD after the initial blinded treatment was unmasked (n = 4). At the 2-month follow-up, positive trends were found via the State-Trait Anxiety Inventory (STAI) in reductions in trait anxiety (p = 0.033) with an effect size of 1.1, and state anxiety was significantly reduced (p = 0.021) with an effect size of 1.2, with no acute or chronic adverse effects persisting beyond 1 day after treatment or treatment-related serious adverse events. STAI reductions were sustained for 12 months. These results indicate that when administered safely in a methodologically rigorous medically supervised psychotherapeutic setting, LSD can reduce anxiety, suggesting that larger controlled studies are warranted.This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License, where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially.

Being Bullied: Associated Factors in Children and Adolescents 8 to 18 Years Old in 11 European Countries

OBJECTIVES. To analyze the prevalence of bullying victims among children and adolescents aged 8 to 18 years in 11 European countries and to investigate the associated sociodemographic, physical, and psychosocial factors. METHODS. Being a bullying victim was measured by using the social acceptance (bullying) scale from the Kidscreen-52, a health-related quality-of-life questionnaire administered to 16 210 children and adolescents aged 8 to 18 and their parents in postal or school-based surveys in 11 European countries. Standardized mean differences (effect size) were computed to measure the percentage of children/adolescents scoring 1 SD below the mean on the Kidscreen bullying scale. Logistic regression models were used to determine which sociodemographic, physical, and psychosocial factors were associated with being bullied. RESULTS. The percentage of children being bullied was 20.6% for the entire sample, ranging from 10.5% in Hungary to 29.6% in the United Kingdom. In almost all countries the factors most strongly associated with being bullied were younger age, having probable mental health problems, having a low score on the Kidscreen-52 moods and emotions dimensions, and poor social support. Using the grand mean for all countries as the reference category, there was an above-average likelihood of children or adolescents reporting that they had been victims of bullying in 5 countries (Austria, Netherlands, Spain, Switzerland, and the United Kingdom), and a below-average likelihood in 3 countries (France, Greece, Hungary). CONCLUSIONS. This study indicated considerable variation between countries in the prevalence of those perceiving themselves to be victims of bullying but also revealed a clear profile of those likely to be bullied. The study also suggests that the Kidscreen bullying scale could be useful in identifying potential bullying victims.

INSTRUMENTOS PARA LA EVALUACIÓN DE LA ATENCIÓN PRIMARIA DE SALUD ADAPTADOS PARA ARGENTINA

La evaluación de la atención primaria de la salud (APS) es una actividad de investigación que no se puede limitar al contexto académico y científico sino que está íntimamente ligada a la planificación y a la gestión de los recursos de Salud Pública, tanto en el contexto programático de Ministerios y Secretarías de Salud gubernamentales, de obras sociales o de proveedores privados de cobertura médica, como el de equipos locales de profesionales proveedores de servicios de salud. La evaluación de servicios sanitarios recurre habitualmente a datos de estructura, procesos y resultados obtenidos sistemáticamente por procedimientos administrativos de financiamiento y de prestación de servicios. En cambio, el desarrollo de líneas de investigación sobre la base de modelos conceptuales integrales y capaces de obtener datos de otras fuentes, son escasas en nuestro país. Por ejemplo, existe una notable carencia de conocimiento sobre la perspectiva de la población acerca de su salud y de sus experiencias con la atención médica para analizar si los servicios provistos son apropiados o existe una brecha de necesidades no cubiertas. El grupo de investigación que realiza esta propuesta adaptó un conjunto de cuestionarios para evaluar la APS (PCAT: Primary Care Assessment Tools) cuyo uso a nivel internacional es muy promisorio (ver Descripción del tema abordado). El Ministerio de Salud de la Provincia de Córdoba y la Dirección de Atención Primaria de la Salud (DAPS) de la Municipalidad de Córdoba, manifestaron su interés por la difusión de estos instrumentos entre gestores y efectores de salud para promover su implementación. En la ciudad de Córdoba, estas instituciones tienen a su cargo la totalidad de centros de atención médica pública de primer nivel, 95 municipales y 20 provinciales, que con un plantel profesional de más de 900 personas proporciona cuidados de salud a más de 500.000 habitantes de la ciudad de Córdoba. En boletín estadístico 2009 de la DAPS informa que en los 95 CAPS y en el transcurso de un año, se atienden aproximadamente un 1.000.000 de consultas. Datos provenientes de acciones preventivas muestran que el Programa de Control de Crecimiento y Desarrollo del Niño atiende mensualmente a unos 42.000 niños y niñas menores de 5 años, el de Control de Embarazo y Puerperio registra cada año entre 4.000 y 5.000 mujeres, mientras que en 2009 se contabilizó más de 50.000 mujeres en el Programa de Salud Reproductiva. En cuanto a la población adulta, los Programas de Hipertensión Arterial y de Control del Paciente Diabético registran más de 12.000 y de 6.500 personas, respectivamente. Estos datos dan cuenta de acciones que responden mayoritariamente a demandas efectuadas por la población para los cuales se cuenta con un programa en particular. La información disponible a nivel provincial es aún más acotada y heterogénea, ya que los servicios de APS están descentralizados, a cargo de los municipios. El Ministerio de Salud participa en el financiamiento de la APS a través de los llamados pactos sanitarios y otros tipos de acuerdos. El control de gestión se realiza también a través de indicadores administrativos, por lo que existe un gran interés por la implementación de un nuevo modelo de evaluación de la APS a nivel provincial. La difusión del modelo conceptual y las herramientas PCAT pretende facilitar el acceso a otro tipo de información acerca de características transversales de la organización y particularmente, sobre aspectos de calidad de la atención para la evaluación y la planificación de los servicios. Esta información, que podría ser colectada de una manera uniforme, sería útil para explicar los resultados de la atención sanitaria en función de las necesidades en salud de la población.

In occasione delle fauste nozze Giulio Zuccoli ed Aurora Rovetta bresciani : alcuni componimenti allusivi a Dante Alighieri.

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Memorie istoriche intorno alla vita della beata Elisabetta Picenardi nobile vergine cremonese e terziaria dell'insigne Ordine de' servi di Maria /

Cavagna 10582: Bound with thirteen other Italian and Latin works, most from the 19th century; binder's title: "Opuscoli"; former shelf-mark Cavagna 10585.

Del riparo de' pennelli alle rive del Po di Cremona : a sua eccellenza il signor marchese don Angiolo Luigi Maraviglia Mantegazza, consigliere intimo attuale di stato delle Ll. maestáa imperiali, e presidente della regia camera ec.

Acquisition made accessible thanks to a 2015-2017 grant from the Council on Libraries and Information Resources.

[Testamento di duca Pompeo Litta Visconti Arese].

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Iosephi Francisci RezzolI presbyteri inscriptiones.

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Solennizzandosi la centenaria commemorazione dell' incoronazione di M. V. sul monte presso Varese : iscrizioni e poesie.

Acquisition made accessible thanks to a 2015-2017 grant from the Council on Libraries and Information Resources.