Search results for "Comet"
showing 10 items of 274 documents
Psychometric Properties of and Measurement Invariance in the Questionnaire of Stereotypes Toward Older Adulthood in Health Care College Students and …
2023
Background In health professionals, negative stereotypes toward older adulthood have been associated with the difficulty in recognizing pathological processes and the refusal to care for older patients because of assuming that communication with them will be uncomfortable and frustrating. For these reasons, research on stereotypes in these groups has acquired growing importance. The usual strategy to identify and evaluate agist stereotypes is to use scales and questionnaires. Although multiple scales are currently used, in Latin America, the Questionnaire for the Evaluation of Negative Stereotypes Toward Older Adulthood (Cuestionario de Estereotipos Negativos sobre la Vejez [CENVE]), devel…
Convergent and discriminative validity of the Frail-VIG index with the EQ-5D-3L in people cared for in primary health care
2021
Abstract Background The Frail-VIG frailty index has been developed recently. It is an instrument with a multidimensional approach and a pragmatic purpose that allows rapid and efficient assessment of the degree of frailty in the context of clinical practice. Our aim was to investigate the convergent and discriminative validity of the Frail-VIG frailty index with regard to EQ-5D-3L value. Methods We carried out a cross-sectional study in two Primary Health Care (PHC) centres of the Catalan Institute of Health (Institut Català de la Salut), Barcelona (Spain) from February 2017 to January 2019. Participants in the study were all people included under a home care programme during the study peri…
El cometa de Halley y la imagen pública de la astronomía en la prensa diaria española de principios del siglo XX
2013
Este texto pretende mostrar algunos aspectos de las representaciones formadas en la opinión pública española acerca de la astronomía y la astrofísica, a partir del análisis de las noticias publicadas en algunas de las cabeceras más destacadas con motivo de la aparición del cometa de Halley en 1910. El interés despertado por la llegada de este cometa estuvo íntimamente ligado a su asociación con diferentes desastres y calamidades, representado en este caso por el equipaje de gases mortíferos que portaba y que desató una inquietud generalizada entre una parte importante de la población. Esta preocupación sirvió para reforzar y legitimar frente a la opinión pública la actividad desarrollada po…
Method Effects Associated to Item Valence: Evidence From the 10-Item Big-Five Inventory in Older Adults.
2022
The objective of this study is to analyze the factor structure of the BFI-10 considering item valence effects when applied to measure older adults. Likewise, this study aims to estimate the factorial structure, internal consistency of the scale, to assess the nomological validity, and the association of the Big Five traits with age. 75,078 participants with mean age of 68.27 from the 7th Wave of the SHARE study were included. Confirmatory Factor Analyses, omega coefficients and Pearson correlations were estimated. The best-fit model identified a five-factor structure with two valence effects, internal consistency ranged from .26 to .64, the nomological network showed that loneliness is neg…
Detection of DNA effects in human cells with the comet assay and their relevance for mutagenesis
1996
The single cell gel test (SCG-test or comet assay) is a rapid and sensitive method for measuring DNA damage and repair in individual cells. A wide variety of mutagens have been shown to cause DNA alterations detectable with the comet assay, but it is not yet clear whether a relationship exists between the DNA effects and the induction of mutations. We are therefore investigating in a cell culture system with human cells (MRC5CV1) the induction of DNA damage by environmental mutagens and the formation of mutations at the HPRT gene. In the present study we investigated benzo[a]pyrene (BP), an environmental mutagenic and carcinogenic polycyclic aromatic hydrocarbon, and its reactive metabolite…
Protection by beverages, fruits, vegetables, herbs, and flavonoids against genotoxicity of 2-acetylaminofluorene and 2-amino-1-methyl-6-phenylimidazo…
2002
Abstract Chinese hamster lung fibroblasts, genetically engineered for the expression of rat cytochrome P450 dependent monooxygenase 1A2 and rat sulfotransferase 1C1 (V79-rCYP1A2-rSULT1C1 cells), were utilized to check for possible protective effects of beverages of plant origin, fruits, vegetables, and spices against genotoxicity induced by 2-acetylaminofluorene (AAF) or 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP). Antigenotoxic activities of juices from spinach and red beets against AAF could be monitored with similar effectivity by the HPRT-mutagenicity test (IC50=0.64%; 2.57%) and alkaline single cell gel electrophoresis (comet assay; IC50=0.12%; 0.89%) which detects DNA stran…
Methane and carbon monoxide infrared emissions observed at the Canada-France-Hawaii Telescope during the collision of comet SL-9 with Jupiter
1995
Observations with the Fourier Transform Spectrometer were conducted in spectral ranges from 1.6 to 4.7 µm from July 17 to 21 (UT) on the hot plumes appearing on the limb as well as hours or days after the impacts. We present here an analysis of the methane emission observed at 3.3 µm some 10 min after the C impact, indicating the presence of a very small (less than 100 km wide) hot region with temperatures in the 750–1500 K range within the 0.1- to 0.01-mbar region. We also report the detection of CO emission at 4.7 µm 4.5 hrs after the L impact, indicative of a temperature of 274±10 K at the ∼1016 CO molec cm−2 level. The observations suggest that the stratospheric temperature decreases wi…
IE-ACCME Intelligenza Emotiva: Abilità, Credenze e Concetto di Sé Meta-Emotivo.
2013
L'IE-ACCME è uno strumento di misurazione dell’Intelligenza Emotiva, destinato a preadolescenti e adolescenti, ispirato al modello di Salovey e Mayer del 1997. L’intelligenza emotiva – come ogni altra forma di intelligenza – ha una sua validità adattiva. Le emozioni, infatti, sono segnali che necessitano di vere e proprie abilità di elaborazioni cognitive, che riguardano sia la sfera personale che interpersonale. Le abilità emotive possono essere collocate lungo un continuum che parte da quelle di base fino a quelle più complesse. STRUTTURA Lo strumento consente di misurare le quattro dimensioni dell’intelligenza emotiva definite nel modello di Mayer e Salovey, la Percezione, l’Uso, la Comp…
Il test IE-ACCME:la misurazione dell'abilità, conoscenza e consapevolezza meta-emotiva in preadolescenti e adolescenti.
2011
Psicothema
2010
La adicción al cibersexo constituye una «nueva patología» cuya prevalencia ha aumentado con rapidez en los últimos años, por lo que se precisa de instrumentos de evaluación validados. En este trabajo presentamos la adaptación y validación para su administración en población española del Internet Sex Screening Test (ISST). El instrumento fue administrado a 1.239 estudiantes universitarios españoles. Los resultados muestran cinco componentes que explican el 47,5% de la varianza. La consistencia interna es de 0,88 y la estabilidad temporal de 0,84. Por otro lado, el instrumento presenta una adecuada validez convergente y discriminante, mostrando la puntuación total una correlación positiva sig…