Search results for "Time frame"
showing 6 items of 16 documents
Reprocessing and restabilization of greenhouse films
2002
From the ecological and economical points of view, reprocessing of polyethylene greenhouse films is a promising solution to reduce discarded materials and to produce useful, or potentially useful, objects for service. Films exposed outdoors, however, show inferior mechanical properties and the melt processing worsens these properties. The addition of stabilizers and antioxidants to recycled plastic products prevents inherent thermal instabilities from occurring within the time frame of proper processing. In this study, we attempt to explore ways for improving product performance by the addition of four different additives when the recycled films undergo intensive shear processing. The proce…
Effectiveness of hexavalent vaccines against invasive Haemophilus influenzae type b disease: Germany's experience after 5 years of licensure
2007
Summary Vaccine effectiveness (VE) was determined with a case-cohort approach using Cox regression. Cases with confirmed systemic Hib infections in children born from 1 August 2000 to 31 December 2004 were ascertained through two independent nationwide active surveillance systems. A representative cohort of 1303 children born in the same time frame was randomly sampled in a nationwide immunisation survey. Thirty cases were eligible for VE calculation; 19 were unvaccinated and 11 vaccinated with hexavalent vaccines. VE was 68.4% (95% CI: 19.0–87.6) for incomplete primary series and 90.4% (95% CI: 70.6–96.8) for the full primary series. For full immunisation VE was 100.0% (95% CI: 52.7–100.0)…
Una tabla inédita de Fernando Yáñez y nueva luz sobre su estancia en Almedina (1518-1525)
2020
The contribution presents a new acquisition for the catalog of Fernando Yáñez, a Holy Family dating back to 1523, shedding new light on the artist?s production in the third decade of the sixteenth century during his return to Almedina, his birthplace, in a time frame that divides the works for Valencia, like the retablo mayor for the city?s cathedral, from his altarpieces for Cuenca.
Don't throw away your printed books: A meta-analysis on the effects of reading media on reading comprehension
2018
Abstract With the increasing dominance of digital reading over paper reading, gaining understanding of the effects of the medium on reading comprehension has become critical. However, results from research comparing learning outcomes across printed and digital media are mixed, making conclusions difficult to reach. In the current meta-analysis, we examined research in recent years (2000–2017), comparing the reading of comparable texts on paper and on digital devices. We included studies with between-participants (n = 38) and within-participants designs (n = 16) involving 171,055 participants. Both designs yielded the same advantage of paper over digital reading (Hedge's g = −0.21; dc = −0.2…
Granice romantyzmu w dziejach polskiej komedii według dziewiętnastowiecznej krytyki krajowej
2021
W polskiej krajowej krytyce literackiej i teatralnej XIX w., dokonującej już pewnych bilansów dorobku romantyzmu, pojęcia „komedii romantycznej” i „romantyzmu w komedii” służyły za środek do porównawczych analiz i historycznoliterackich periodyzacji, choć jednocześnie takie kwestie, jak semantyczna zawartość tych terminów czy granice czasowe określanego nimi zjawiska, nie były precyzowane ani nawet problematyzowane. Podjęta w niniejszym artykule próba rekonstrukcji ówczesnych niewypowiedzianych wyobrażeń o tych znaczeniach i granicach wiedzie w kierunku formuły chronologicznie rozpiętej między „kosmopolityzmem”, przypisywanym wtedy klasycystycznej komedii XVIII w. i zwalczonym rzekomo dopie…
How Does the Type of Migration Influence the Social Functioning of Polish Migrants in the Culture of the Host Country?
2014
The aim of the project was to research the social functioning of labour migrants in the culture of the host country. We were interested in showing the relationship between the time-frame of migration and the dimensions of socio-cultural adaptation. The study was conducted on a N=105 sample of Poles working abroad. A link to an online questionnaire was sent to those who had worked abroad during the study. The subjects were Poles who migrated to various countries in Western Europe. The research was of a quantitative-qualitative nature. The tools used in the study included a measure of Job Satisfaction, a Core Self Evaluation Score, and a questionnaire assessing work abroad. The qualitative pa…