Обчислювальна математика та програмування (Інженерні розрахунки в середовищі Excel)

The teaching and practical guide is devoted to study how to make the engineering calculations using the Microsoft Excel software. Different examples of engineering tasks with the varied complexity are provided with step-by-step explanation with corresponding illustrations. The obtained results are provided. Each subject includes the explained case studies and the tasks for work in class and individually. The teaching and practical guide is aimed for the students studying in chemical engineering, which want to use Microsoft Excel software for engineering calculations.Навчально-методичний посібник присвячений вивченню середовища Excel та практичному застосуванню цього програмного забезпечення для інженерних розрахунків. Наведено велику кількість прикладів вирішення розрахункових завдань різної складності. До прикладів надаються пояснення. Усі приклади забезпечені результатами виконання. По кожній темі представлені практичні завдання для виконання лабораторних робіт. Призначено для студентів хімічних спеціальностей, які бажають застосовувати середовище Excel для інженерних розрахунків

Обчислювальна математика та програмування (Інженерні розрахунки в середовищі Mathcad)

The teaching and practical guide is devoted to study how to make the engineering calculations using the Mathcad software. The different examples of engineering tasks with the varied complexity are provided with step-by-step explanation with corresponding illustrations. The obtained results are provided. Each subject includes the explained case studies and the tasks for work in class and individually. The teaching and practical guide is aimed for the students studying in chemical engineering, which want to use Mathcad for engineering calculations.Навчально-методичний посібник присвячений вивченню середовища Mathcad та практичному застосуванню цього програмного забезпечення для інженерних розрахунків. Наведено велику кількість прикладів вирішення розрахункових завдань різної складності. До прикладів надаються пояснення. Усі приклади забезпечені результатами виконання. По кожній темі представлені практичні завдання для виконання лабораторних робіт. Призначено для студентів хімічних спеціальностей, які бажають застосовувати середовище Mathcad для інженерних розрахунків

Association between dietary behaviors and depression in adolescent girls

Background: The growing prevalence of depression has become a major public health problem. There is limited evidence regarding the relationship between dietary behaviors and depression. The present study was designed to evaluate the association between dietary behaviors and depression score. Methods: A total of 933 Iranian adolescent girls aged 12 to 18 years were included in this cross-sectional study. Depression severity score was assessed using a validated Persian version of Beck’s depression inventory. Dietary behaviors were pre-defined and assessed in ten domains using a standard questionnaire. To investigate the association between dietary behaviors and depression score, the linear regression analysis in crude and adjusted models was used. Results: 67.7% of participants had no or minimal depression symptoms and 32.3% of participants were categorized with mild-to-severe depression symptoms. There were significant inverse relationships between main meal consumption (Beta: -0.141; 95% CI: − 3.644 to − 1.000; P = 0.001), snack consumption (Beta: -0.100; 95% CI: − 2.400 to − 0.317; P = 0.002), regular meal consumption (Beta: 0.23; 95% CI: 0.13–0.42; P = 0.001) and food chewing (Beta: -0.152; 95% CI: − 2.279 to − 0.753; P = 0.03) with depression score. These associations remained significant after adjustment for confounding variables. In addition, frequency of intra-meal fluid intake (Beta: 0.096; 95% CI: 0.288 to 1.535; P = 0.004) and spicy foods consumption (Beta: 0.076; 95% CI: 0.098 to 1.508; P = 0.02) were directly associated with depression score in the crude model. These significant relations were disappeared in full adjusted model. No significant association was found between breakfast consumption, intake of fried foods, chewing ability, and tooth loss with depression score (P > 0.05). Conclusions: Significant associations were observed between specific eating behaviors with depression score. Prospective studies are needed to confirm these findings

Physical Activity and Exercise Promote Peroxisome Proliferator-Activated Receptor Gamma Expression in Adipose Tissues of Obese Adults

Background: Peroxisome proliferator-activated receptor gamma (PPARγ) has recently been studied for its potential influence on the functional response of the human body to exercise. We aimed to investigate the association of habitual physical activity (PA) with PPARγ mRNA level in the visceral and subcutaneous adipose tissues (VAT and SAT) in non-obese and obese non-diabetic adults. Methods: VAT and SAT were obtained from 95 individuals, including 40 non-obese (BMI<30kg/m2) and 55 obese (BMI≥30kg/m2) who underwent elective abdominal surgery (Tehran, Iran, 2012-2015). The assessment of habitual PA was performed by a valid and reliable International PA Questionnaire-long form, and the metabolic equivalent of task (MET) was evaluated. Real-time quantitative reverse transcriptase-PCR evaluated the PPARγ expression in VAT and SAT. Results: PPARγ expression in both VAT (1.18 vs. 0.37 fold change, P<0.001) and SAT (2.07 vs. 0.29 fold change, P=0.004) among obese subjects was higher than the non-obese group. After controlling for age, sex, and total energy intake, a positive association was found between total METs and PPARγ expression in both VAT and SAT among obese participants (β=0.22, P=0.007 and β=0.12, P<0.001, respectively). Among obese participants, there was a direct association between leisure time-related METs with VAT PPARγ expression (β=0.05, P=0.026). Moreover, in this group, an association was observed between occupation-related METs with PPARγ in both fat tissues (β=0.11, P=0.002 and β=0.17, P=0.013, respectively), and household work-related METs with SAT PPARγ (β=0.21, P=0.011). Conclusion: High PA as an indispensable part of a healthy lifestyle may exert its beneficial effect by regulating PPARγ expression.

Les titres byzantins en Arménie

À l’époque des rois de la maison des Arsacides, c’est-à-dire du ier au ve siècle, la place d’un naxarar dans l’ordre de préséance était fixée par le rang du trône (en arménien gah) ou du barj (coussin) qu’il occupait aux réceptions royales. Un document intitulé gahnamak (« Livre des gah » ou mieux « Liste de préséances ») établissait la succession des gah. C’était une liste des familles nobles avec les numéros de leurs gah, commençant par le plus honorable, et qui déterminait aussi leur digni..

Dietary pattern and incidence of chronic kidney disease among adults: a population-based study

Abstract Background & Aims Although dietary patterns have been linked to chronic diseases such as cardiovascular disease, sparse data are available for a relationship between dietary patterns and incident chronic kidney disease (CKD) in West Asian populations. The aim of this study was to evaluate the association of population-based dietary pattern with the risk of incident CKD after 6.1 years of follow-up. Methods At baseline, habitual dietary intakes of 1630 participants of the Tehran Lipid and Glucose Study (TLGS) who were free of CKD was assessed by a valid and reliable food-frequency questionnaire. The following three major dietary patterns were identified using a principal components analysis: Lacto-vegetarian dietary pattern, traditional Iranian dietary pattern, and high fat, high sugar dietary pattern. Estimated glomerular filtration rate (eGFR) was calculated, using the Modification of Diet in Renal Disease (MDRD) Study equation and CKD was defined as eGFR < 60 mL/min/1.73m2. Odds ratio (OR) using multivariable logistic regression was calculated for the association of incident CKD with the extracted dietary patterns. Results After adjusting for age, sex, smoking, total energy intake, physical activity, body mass index, diabetes, and hypertension the OR for participants in the highest compared with those in the lowest tertile of the lacto-vegetarian dietary pattern was 0.57 (95% confidence interval [CI]: 0.41 to 0.80, P-trend = 0.002). In contrast, the high fat, high sugar dietary pattern was positively associated with the incidence of CKD (OR for the third tertile compared with first tertile: 1.46; 95% CI: 1.03–2.09; P-trend = 0.036). Traditional Iranian dietary pattern was not associated with incident CKD. Conclusion The high fat, high sugar dietary pattern was associated with significantly increased (46%) odds of incident CKD, whereas a lacto-vegetarian dietary pattern may be protective against the occurrence of CKD by 43%