ramadan is considered as holy month of muslims worldwide. during this month, most able-bodied muslim adults refrain from foods, drinks, smoking, and medications from dawn until sunset. in islamic rules, patients and those for whom fasting may have major health risks are exempted from fasting during ramadan. there is still no consensus regarding the effects of ramadan fasting, as a unique opport...

The article is devoted to topical issues of reducing mortality from cardiovascular diseases and the role behavioral risk factors on example Ryazan region. There a high contribution acute chronic forms coronary heart disease (IHD) circulatory system and, in general, all causes. main contributing development stroke, myocardial infarction, percutaneous interventions all-cause are dyslipidemias, SC...

In practice, the supplier often offers the retailers a trade credit period M and the retailer in turn provides a trade credit period N to her/his customer to stimulate sales and reduce inventory. From the retailer’s perspective, granting trade credit not only increases sales and revenue but also increases opportunity cost (i.e., the capital opportunity loss during credit period) and defau...