Search results for "Scientific"
showing 10 items of 1193 documents
Usefulness of chest ultrasound in a neonatal infection due to SARS-CoV-2
2021
A snapshot of pneumonia research activity and collaboration patterns (2001–2015): a global bibliometric analysis
2019
Background This article describes a bibliometric review of the scientific production, geographical distribution, collaboration, impact, and subject area focus of pneumonia research indexed on the Web of Science over a 15-year period. Methods We searched the Web of Science database using the Medical Subject Heading (MeSH) of “Pneumonia” from January 1, 2001 to December 31, 2015. The only document types we studied were original articles and reviews, analyzing descriptive indicators by five-year periods and the scientific production by country, adjusting for population, economic, and research-related parameters. Results A total of 22,694 references were retrieved. The number of publications in…
Cabut/dTIEG associates with the transcription factor Yorkie for growth control
2015
The Drosophila transcription factor Cabut/dTIEG (Cbt) is a growth regulator, whose expression is modulated by different stimuli. Here, we determine Cbt association with chromatin and identify Yorkie (Yki), the transcriptional co-activator of the Hippo (Hpo) pathway as its partner. Cbt and Yki co-localize on common gene promoters, and the expression of target genes varies according to changes in Cbt levels. Down-regulation of Cbt suppresses the overgrowth phenotypes caused by mutations in expanded (ex) and yki overexpression, whereas its up-regulation promotes cell proliferation. Our results imply that Cbt is a novel partner of Yki that is required as a transcriptional co-activator in growth…
High-resolution pyrolysis–gas chromatography with a movable reaction zone
1997
Abstract A new device was constructed for pyrolysis–gas chromatography and it was laboratory tested. The device enables the thermal degradation of polymers inside a capillary pre-column and transfer of the reaction zone into a column oven. The pyrolysis procedure described protects the thermally sensitive compounds prior to pyrolysis, prevents the process of irreversible condensation of high-boiling pyrolysis products during the chromatographic process and eliminates extracolumn effects on the peak broadening.
Effects of sleep apnea and kidney dysfunction on objective sleep quality in nondialyzed patients with chronic kidney disease: an ESADA study
2020
Study Objectives: Patients with chronic kidney disease (CKD) often report poor sleep quality, but they commonly exhibit OSA. The aim of this study was to evaluate the influence of OSA severity and of estimated glomerular filtration rate impairment on objective sleep quality in nondialyzed patients with CKD, defined as an estimated glomerular filtration rate <60 mL/min/1.73m2. Methods: Polysomnographic sleep characteristics were compared between patients with (n = 430) and without CKD (n = 6,639) in the European Sleep Apnea Database cohort. Comparisons were repeated in 375 patients with CKD and 375 control patients without CKD matched for sleep center, age, sex, and AHI, and in 310 matche…
MEMORIA E PROGETTO Un modello per il Mezzogiorno che serva a tutto il Paese
2010
DALLA QUARTA DI COPERTINA DEL VOLUME: L’Italia, è stato detto di recente, è un paese senza bussola. Ha perso la memoria del suo futuro. Le manca un progetto. Persino la sua tenuta come nazione, a centocinquant’anni dalla raggiunta unità, è messa in dubbio. Occorre un progetto. Per il Sud e per tutto il Paese. A quarant’anni dalla fondazione dell’Istituto di Cibernetica del CNR a opera di Eduardo Caianiello, gli autori del libro colgono “l’occasione non solo per ricordare il passato e proporre un consuntivo dell’attività svolta, ma anche per recuperare la ‘memoria del futuro’ e costruire un progetto, alla luce delle intuizioni dello scienziato napoletano. Eduardo Caianiello è il fisico che h…
Les commissions coloniales rattachées au Comité des Travaux historiques et scientifiques
2000
The colonial Commissions connected to the Comité des travaux historiques et scientifiques. In the late nineteenth century, the Comité des travaux historiques et scientifiques became a bigger and bigger research organization, always closely linked to the successive political governments. With each new French conquest, a commission of parisian scientists and local correspondents was created and attached to it, as in 1864, the scientific commission for Mexico, in 1884, the commission for Tunisia, in 1908, the archeological commission for Indochina. The example studied here is that of the commssion for Tunisia, which coordonated researches in archeology and epigraphy in North Africa, thanks to …
Antibiotics and food in the American press
2021
AbstractThe emergence of antimicrobial resistant infections from food is well documented in the scientific literature but, in this kind of matter, the public opinion is an important policy driver and is vastly forged by traditional media. Here, we propose a text mining study through about 500 articles from two reference daily U.S. newspapers to assess the media coverage of this issue. Our results indicate that, since the middle of the 80s, the two journals considered here adopted a very different narrative around the issue, echoing civil society concerns in one case and the official discourse in the other.
Avances en la investigación sobre la implementación del aula invertida en primaria
2021
El aula invertida o Flipped Classroom, es un modelo pedagógico que plantea la posibilidad de transferir parte del proceso de enseñanza y aprendizaje fuera del aula, con el fin de utilizar el tiempo de clase para el desarrollo de procesos cognitivos de mayor complejidad y favorecer el aprendizaje significativo. La aplicación de dicho modelo, ha crecido en los últimos años en diversos contextos educativos. En este texto se presenta una revisión bibliográfica, cuyo objetivo ha sido analizar las implementaciones que se han realizado en Educación Primaria, pero también destacar las características de las que han obtenido mejores resultados para el diseño futuro de intervenciones basadas en la ev…
Classroom Management and Loss of Time at the Lesson Start: A Preliminary Study
2013
<p style="text-align:justify">Lesson starts are transitional events which may cause management problems for teachers. In this study 131 lesson starts of equally many teachers were observed in primary and secondary schools in Finland. The results indicated that, in general, the problems were minimal. However, for various reasons lesson starts were delayed by an average of about six minutes. Calculated on this basis, the total loss of instructional time in the whole school year was about five weeks of schooling. No statistically significant relationships were observed between disturbances in the classroom and any background variable studied including grade level, classroom type,(special…