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Bogdana Adriana Nasui Andreea Toth Codruta Alina Popescu Ovidiu Nicolae Penes Valentin Nicolae Varlas Rodica Ana Ungur Nina Ciuciuc Cristina Alina Silaghi Horatiu Silaghi Anca Lucia Pop 《Nutrients》2022,14(6)
The study aimed to evaluate lifestyle factors among Information Technology (IT) workers from Romania before and during the pandemic. We used an online applied questionnaire, filled in by 1638 respondents, that assessed nutrition status-Body Mass Index (BMI), weight and diet change, physical activity, alcohol consumption, number of hours working in front of the computer, stress, and sleep. Multivariate logistic regression was used to establish the lifestyle factors that lead to weight gain. Although the level of physical activity (PA) was low before the pandemic, the results of our study showed a further decrease in physical activity. In total, 61.1% of men and 71.1% of women performed PA for less than 30 min per day. Weight gain was reported in 50.5% of men and 45.3% of women (mean weight gain was 5.11 ± 3.52 kg) as a result of increased screen time (with a mean of 3.52 ± 4.29 for females and 3.05 ± 2.09 for males, p > 0.05 h per day) and the reported changes in diet. Despite the popularity of home-cooked foods, the intake of vegetables and fruit remained low. The quality of sleep was poor for 55.7% of the respondents. Public health and corporation policies are required to encourage a healthy lifestyle and avoid chronic diseases. 相似文献
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Results of research on hydration of four-component binders containing very high amounts of supplementary cementitious materials were presented. The samples were composed of blended pozzolana (a mix of conventional fly ash and spent aluminosilicate catalyst), cement (about 20 wt.% in the binder) and Ca(OH)2. Spent aluminosilicate catalyst was proposed as activating component which can improve properties of low-cement blends, while the role of Ca(OH)2 was to enhance pozzolanic reaction. Early and later hydration periods of such blends were investigated by calorimetry, TG/DTG, FTIR and X-ray diffraction. Initial setting time as well as compressive strength were also determined. It was concluded that enhancement of reactivity and improvement of properties of fly ash–cement binders are possible by replacing a part of fly ash with more active fine-grained pozzolana and introducing additional amounts of Ca(OH)2. The spent catalyst is mainly responsible for accelerating action during the first hours of hydration and for progress of early pozzolanic reaction. Fly ash develops its activity over time, thus synergic effect influences the later properties of composites. Samples containing blended pozzolana exhibit shorter initial setting times and higher compressive strength, as well as faster consumption of Ca(OH)2 compared to the reference. Investigated mixtures seem to be promising as “green” binders, alternatives to cement, after optimizing their compositions or additional activating procedure. 相似文献
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Franziska Carmen Grafen Valentin Neuhaus Othmar Schöb Matthias Turina 《Langenbeck's archives of surgery / Deutsche Gesellschaft fur Chirurgie》2010,395(1):57-63
Purpose
The aim of this study is to compare the results of laparoscopic management of acute small bowel obstruction (SBO) from abdominal adhesions to both exploratory laparotomy and secondary conversion to open surgery. 相似文献105.
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Eagle KA Berger PB Calkins H Chaitman BR Ewy GA Fleischmann KE Fleisher LA Froehlich JB Gusberg RJ Leppo JA Ryan T Schlant RC Winters WL Gibbons RJ Antman EM Alpert JS Faxon DP Fuster V Gregoratos G Jacobs AK Hiratzka LF Russell RO Smith SC;American College of Cardiology;American Heart Association 《Journal of the American College of Cardiology》2002,39(3):542-553
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