85 research outputs found
Fieldwork Monitoring in Practice: Insights from 17 Large-scale Social Science Surveys in Germany
This study provides a synopsis of the current fieldwork monitoring practices of large-scale surveys in Germany.
Based on the results of a standardized questionnaire, the study summarizes fieldwork monitoring indicators
used and fieldwork measures carried out by 17 large-scale social sciences surveys in Germany. Our descriptive
results reveal that a common set of fieldwork indicators and measures exist on which the studied surveys rely.
However, it also uncovers the need for additional design-specific indicators. Finally, it underlines the importance
of a close cooperation between survey representatives and fieldwork agencies to optimize processes in
fieldwork monitoring in the German survey context. The article concludes with implications for fieldwork
practice
P300 amplitude is insensitive to working memory load in schizophrenia
<p>Abstract</p> <p>Background</p> <p>Working memory (WM) tasks usually elicit a P300 ERP component, whose amplitude decreases with increasing WM load. So far, this effect has not been studied in schizophrenics (SZs), a group that is considered to have an aberrant brain connectivity and impairments in WM capacity. The aim of this study was to determine the dependency of the P300 component on WM load in a sample of SZ subjects.</p> <p>Methods</p> <p>We recorded 26 subjects (13 SZ patients and their matched controls) with an 80-channel electroencephalogram. Subjects performed an N-back task, a WM paradigm that manipulates the number of items to be stored in memory.</p> <p>Results</p> <p>In healthy subjects, P300 amplitude was highest in the low WM load condition, and lowest in both the attentional control condition and the high WM load condition. In contrast, SZs evidenced low P300 amplitude in all conditions. A significant between group difference in P300 amplitude was evidenced only at the low WM load condition (1 -back), being smaller in SZs.</p> <p>Conclusions</p> <p>SZ subjects display a lower than normal P300 amplitude, which does not vary as a function of memory load. These results are consistent with a general impairment in WM capacity in these patients.</p
Hormone Replacement Therapy advertising: sense and nonsense on the web pages of the best-selling pharmaceuticals in Spain
Background. The balance of the benefits and risks of long term use of hormone replacement therapy (HRT) have been a matter of debate for decades. In Europe, HRT requires medical prescription and its advertising is only permitted when aimed at health professionals (direct to consumer advertising is allowed in some non European countries). The objective of this study is to analyse the appropriateness and quality of Internet advertising about HRT in Spain. Methods. A search was carried out on the Internet (January 2009) using the eight best-selling HRT drugs in Spain. The brand name of each drug was entered into Google's search engine. The web sites appearing on the first page of results and the corresponding companies were analysed using the European Code of Good Practice as the reference point. Results. Five corporate web pages: none of them included bibliographic references or measures to ensure that the advertising was only accessible by health professionals. Regarding non-corporate web pages (n = 27): 41% did not include the company name or address, 44% made no distinction between patient and health professional information, 7% contained bibliographic references, 26% provided unspecific information for the use of HRT for osteoporosis and 19% included menstrual cycle regulation or boosting feminity as an indication. Two online pharmacies sold HRT drugs which could be bought online in Spain, did not include the name or contact details of the registered company, nor did they stipulate the need for a medical prescription or differentiate between patient and health professional information. Conclusions. Even though pharmaceutical companies have committed themselves to compliance with codes of good practice, deficiencies were observed regarding the identification, information and promotion of HRT medications on their web pages. Unaffected by legislation, non-corporate web pages are an ideal place for indirect HRT advertising, but they often contain misleading information. HRT can be bought online from Spain, without a medical consultation or prescription constituting a serious issue for public health. In our information society, it is the right and obligation of public health bodies to ensure that such information is not misleading.This study is funded by the Women's Institute (Ref: 773; Expte.69/05)
Uncovering the functional constraints underlying the genomic organisation of the Odorant-Binding Protein genes
Animal olfactory systems have a critical role for the survival and reproduction of individuals. In insects, the odorant-binding proteins (OBPs) are encoded by a moderately sized gene family, and mediate the first steps of the olfactory processing. Most OBPs are organized in clusters of a few paralogs, which are conserved over time. Currently, the biological mechanism explaining the close physical proximity among OBPs is not yet established. Here, we conducted a comprehensive study aiming to gain insights into the mechanisms underlying the OBP genomic organization. We found that the OBP clusters are embedded within large conserved arrangements. These organizations also include other non-OBP genes, which often encode proteins integral to plasma membrane. Moreover, the conservation degree of such large clusters is related to the following: 1) the promoter architecture of the confined genes, 2) a characteristic transcriptional environment, and 3) the chromatin conformation of the chromosomal region. Our results suggest that chromatin domains may restrict the location of OBP genes to regions having the appropriate transcriptional environment, leading to the OBP cluster structure. However, the appropriate transcriptional environment for OBP and the other neighbor genes is not dominated by reduced levels of expression noise. Indeed, the stochastic fluctuations in the OBP transcript abundance may have a critical role in the combinatorial nature of the olfactory coding process
Role of suspension preparation in the spray drying process to obtain nano/submicrostructured YSZ powders for atmospheric plasma spraying
2014AbstractThermal barrier coatings were manufactured by atmospheric plasma spray process from YSZ powders. These powders were made by a reconstitutionprocess which consists in a spray-drying of suspensions followed by thermal treatment of the granules.Nano- and submicron-sized YSZ particles were used as starting material. Feeding well dispersed suspension to spray-drying chamber is thefirst key step in the reconstitution process. With this aim, concentrated, stable YSZ suspensions were obtained by means of the optimisation of thepreparation conditions. Then reconstituted granules were produced by spray-drying of the YSZ suspensions and the following thermal treatmentwhich was optimised.The reconstituted powders were then successfully deposited on austenitic stainless steel coupons by APS. The findings in this work proved thatthe reconstituted powders characteristics which in turn are related to the starting suspension properties affect the final coating microstructure interms of the amount of unmelted zonesThis work has been supported by the Spanish Ministry of Economy and Competitiveness (MAT2012-38364-C03) and the Research Promotion Plan of the Universitat Jaume I, action 2.4 (ref. E-2012-04) and action 3.1 (ref. PREDOC/2009/10).Carpio, P.; Moreno, R.; Gomez, A.; Salvador Moya, MD.; Sanchez, E. (2015). Role of suspension preparation in the spray drying process to obtain nano/submicrostructured YSZ powders for atmospheric plasma spraying. Journal of the European Ceramic Society. 35(1):237-247. https://doi.org/10.1016/j.jeurceramsoc.2014.08.008S23724735
Phenotypical, Clinical, and Molecular Aspects of Adults and Children With Homozygous Familial Hypercholesterolemia in Iberoamerica
Fil: Alves, Ana Catarina. Instituto Nacional de Saúde Doutor Ricardo Jorge, Lisboa; Portugal.Fil: Alonso, Rodrigo. Center for Advanced Metabolic Medicine and Nutrition, Santiago; Chile.Fil: Diaz-Diaz, José Luís. Hospital Universitario A Coruña. Department of Internal Medicine; España.Fil: Medeiros, Ana Margarida. Instituto Nacional de Saúde Doutor Ricardo Jorge, Lisboa; Portugal.Fil: Jannes, Cinthia E. University of São Paulo. Medical School. Hospital São Paulo. Heart Institute (InCor); Brasil.Fil: Merchan, Alonso. Fundación Clinica SHAIO, Cardiología, Bogotá; Colombia.Fil: Vasques-Cardenas, Norma A. Universidad Autónoma de Guadalajara. Facultad de Medicina Zapopan; México.Fil: Cuevas, Ada. Center for Advanced Metabolic Medicine and Nutrition, Santiago; Chile.Fil: Chacra, Ana Paula. University of São Paulo. Medical School. Hospital São Paulo. Heart Institute (InCor); Brasil.Fil: Krieger, Jose E. University of São Paulo. Medical School. Hospital São Paulo. Heart Institute (InCor); Brasil.Fil: Arroyo, Raquel. Fundación Hipercolesterolemia Familiar, Madrid; España.Fil: Arrieta, Francisco. Hospital Ramón y Cajal. Departamento de Endocrinología, Madrid; España.Fil: Schreier, Laura. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Bioquímica Clínica, Laboratorio de Lípidos y Aterosclerosis; Argentina.Fil: Corral, Pablo. Universidad FASTA. Facultad de Medicina. Cátedra Farmacología e Investigación, Mar del Plata; Argentina.Fil: Bañares, Virginia. ANLIS Dr.C.G.Malbrán. Centro Nacional de Genética Médica. Departamento de Genética Experimental; Argentina.Fil: Araujo, Maria B. Hospital Garrahan. Servicio de Nutrición; Argentina.Fil: Bustos, Paula. Universidad de Concepción. Facultad de Farmacia; Chile.Fil: Asenjo, Sylvia. Universidad de Concepción. Facultad de Medicina; Chile.Fil: Stoll, Mario. Programa GENYCO, Laboratorio de Genética Molecular. Comisión Honoraria de Salud Cardiovascular, Montevideo; Uruguay.Fil: Dell'Oca, Nicolás. Programa GENYCO, Laboratorio de Genética Molecular. Comisión Honoraria de Salud Cardiovascular, Montevideo; Uruguay.Fil: Reyes, Maria. Fundación Cardiovascular de Colombia. Cardiología; Bogotá.Fil: Ressia, Andrés. Fundación Cardiovascular de Colombia. Cardiología; Bogotá.Fil: Campo, Rafael. Instituto Mexicano del Seguro Social. Centro de Investigación Biomédica del Occidente, Guadalajara; México.Fil: Magaña-Torres, Maria T. Instituto Nacional de Ciencias Médicas y Nutrición. Unidad de Investigación de Enfermedades Metabólicas; México.Fil: Metha, Roopa. Instituto Nacional de Ciencias Médicas y Nutrición. Unidad de Investigación de Enfermedades Metabólicas; México.Fil: Aguilar-Salinas, Carlos A. Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán. Departamento de Endocrinología y Metabolismo. Secretaría de la Defensa Nacional. Unidad de Especialidades Médicas. Servicio de Endocrinología; México.Fil: Ceballos-Macias, José J. Pontificia Universidad Javerina. Facultad de Medicina. Departamento de Medicina Interna, Bogotá; Colombia.Fil: Ruiz Morales, Álvaro J. Pontificia Universidad Javerina. Facultad de Medicina. Departamento de Medicina Interna, Bogotá; Colombia.Fil: Mata, Pedro. Fundación Hipercolesterolemia Familiar, Madrid; España.Fil: Bourbon, Mafalda. Instituto Nacional de Saúde Doutor Ricardo Jorge, Lisboa; Portugal.Fil: Santos, Raul D. University of São Paulo. Medical School. Hospital São Paulo. Heart Institute (InCor); Brasil.OBJECTIVE: Characterize homozygous familial hypercholesterolemia (HoFH) individuals from Iberoamerica.
APPROACH AND RESULTS: In a cross-sectional retrospective evaluation 134 individuals with a HoFH phenotype, 71 adults (age 39.3±15.8 years, 38.0% males), and 63 children (age 8.8±4.0 years, 50.8% males) were studied. Genetic characterization was available in 129 (96%). The majority (91%) were true homozygotes (true HoFH, n=79, 43.0% children, 46.8% males) or compound heterozygotes (compound heterozygous familial hypercholesterolemia, n=39, 51.3% children, 46.2% males) with putative pathogenic variants in the LDLR. True HoFH due to LDLR variants had higher total (P=0.015) and LDL (low-density lipoprotein)-cholesterol (P=0.008) compared with compound heterozygous familial hypercholesterolemia. Children with true HoFH (n=34) tended to be diagnosed earlier (P=0.051) and had a greater frequency of xanthomas (P=0.016) than those with compound heterozygous familial hypercholesterolemia (n=20). Previous major cardiovascular events were present in 25 (48%) of 52 children (missing information in 2 cases), and in 43 (67%) of 64 adults with LDLR variants. Children who are true HoFH had higher frequency of major cardiovascular events (P=0.02), coronary heart (P=0.013), and aortic/supra-aortic valve diseases (P=0.022) than compound heterozygous familial hypercholesterolemia. In adults, no differences were observed in major cardiovascular events according to type of LDLR variant. From 118 subjects with LDLR variants, 76 (64%) had 2 likely pathogenic or pathogenic variants. In 89 subjects with 2 LDLR variants, those with at least one null allele were younger (P=0.003) and had a greater frequency of major cardiovascular events (P=0.038) occurring at an earlier age (P=0.001).
CONCLUSIONS: There was a high frequency of cardiovascular disease even in children. Phenotype and cardiovascular complications were heterogeneous and associated with the type of molecular defect
Mediated Plastid RNA Editing in Plant Immunity
[EN] Plant regulatory circuits coordinating nuclear and plastid gene expression have evolved in response to external stimuli. RNA editing is one of such control mechanisms. We determined the Arabidopsis nuclear-encoded homeodomain-containing protein OCP3 is incorporated into the chloroplast, and contributes to control over the extent of ndhB transcript editing. ndhB encodes the B subunit of the chloroplast NADH dehydrogenase-like complex (NDH) involved in cyclic electron flow (CEF) around photosystem I. In ocp3 mutant strains, ndhB editing efficiency decays, CEF is impaired and disease resistance to fungal pathogens substantially enhanced, a process recapitulated in plants defective in editing plastid RNAs encoding NDH complex subunits due to mutations in previously described nuclear-encoded pentatricopeptide-related proteins (i.e. CRR21, CRR2). Furthermore, we observed that following a pathogenic challenge, wild type plants respond with editing inhibition of ndhB transcript. In parallel, rapid destabilization of the plastidial NDH complex is also observed in the plant following perception of a pathogenic cue. Therefore, NDH complex activity and plant immunity appear as interlinked processes.This work was supported by the Spanish MICINN (CONSOLIDER and BFU2012 to PV), and Generalitat Valenciana (Prometeo2010/020 to PV). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.García-Andrade Serrano, J.; Ramirez Garcia, V.; López Sánchez, A.; Vera Vera, P. (2013). Mediated Plastid RNA Editing in Plant Immunity. PLoS Pathogens. 9(10):1003713-1003713. https://doi.org/10.1371/ journal.ppat.1003713S1003713100371391
A FUNDAMENTAÇÃO DAS DECISÕES JUDICIAIS AMPARADAS EM PRINCÍPIOS CONSTITUCIONAIS: NECESSIDADE DE SUPERAÇÃO DO SENSO COMUM TEÓRICO NO BRASIL
Em razão do exercício do poder jurisdicional e seu alargamento constante, o Poder Judiciário intervém cada vez mais nas relações jurídicas, seja para extingui-las, seja para constitui-las ou, por fim, seja para modificá-las. Para o estudo do tema, divide-se esta abordagem em duas vertentes. A primeira, que expõe o que integra o senso comum teórico no Brasil por conta de recepções teóricas equivocadas e que podem gerar consequências perniciosas às decisões judiciais em um Estado Democrático de Direito. Na segunda, destacam-se decisões que têm por intuito estabelecer – ao menos por amostragem não aleatória e a título ilustrativo – o que os fenômenos diagnosticados por juristas têm significado quando aludem a alguns dos direitos fundamentais e princípios relacionados ao Direito à Saúde
Distinct Subfamilies of Odorant Binding Proteins in Locust (Orthoptera, Acrididae): Molecular Evolution, Structural Variation, and Sensilla-Specific Expression
Odorant binding proteins (OBPs) play an important role in insect olfaction, facilitating transportation of odorant molecules in the sensillum lymph. While most of the researches are concentrated on Lepidopteran and Dipteran species, our knowledge about Orthopteran species is still very limited. In this study, we have investigated OBPs of the desert locust Schistocerca gregaria, a representative Orthopteran species. We have identified 14 transcripts from a S. gregaria antennal transcriptome encoding SgreOBPs, and recapitulated the phylogenetic relationship of SgreOBPs together with OBPs from three other locust species. Two conserved subfamilies of classic OBPs have been identified, named I-A and II-A, exhibiting both common and subfamily-specific amino acid motifs. Distinct evolutionary features were observed for subfamily I-A and II-A OBPs. Surface topology and interior cavity were elucidated for OBP members from the two subfamilies. Antennal topographic expression revealed distinct sensilla- and cellular- specific expression patterns for SgreOBPs from subfamily I-A and II-A. These findings give first insight into the repertoire of locust OBPs with respect to their molecular and evolutionary features as well as their expression in the antenna, which may serve as an initial step to unravel specific roles of distinct OBP subfamilies in locust olfaction
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