the aim of the present study was to investigate the effect of two aerobic training programs with different intensities on some cardiovascular risk factors in young girls. for this purpose, 42 girls (mean age 20.59±1.46 years, height 160.29±4.75 cm, weight 59.23±8.82 kg, bmi 22.08±3.41 kg/m2, %bf 15.42±3.85 and vo2max 25.34±3.96 ml/kg/min) were voluntarily participated in this study and divided ...

Recent observations suggest that permafrost thaw may create two completely different soil environments: aerobic in relatively well-drained uplands and anaerobic in poorly drained wetlands. The soil oxygen availability will dictate the rate of permafrost carbon release as carbon dioxide (CO2) and as methane (CH4), and the overall effects of these emitted greenhouse gases on climate. The objectiv...

abstract background and objective: diabetes mellitus is associated with cardiomyopathic changes, can be mediated by an oxidative stress. we aimed to study the effects of regular aerobic training and arbutin supplementation on total oxidant status (tos) and total antioxidant (tas) status in the cardiac tissue of diabetic rats. material and methods: fourty-two male wistar rats with an average wei...

conclusions it seems that in people with type 2 diabetes, acute aerobic exercise can decrease the plasma levels of glucose, possibly through increasing orexin a. in addition, negative energy balance is necessary to decrease the levels of insulin and insulin resistance during acute aerobic exercise. results the analysis of findings in p ≤ 0.05 indicated that acute aerobic exercise caused a signi...

In recent years, one of the primary issues noted worldwide in environment is contamination crude oil soil. comparison to traditional methods, bioremediation offers a potential alternative for removing hydrocarbon pollution from environment. This review paper gives an overview benefits, mechanism, and operation aerobic composting remediation soil contaminated with oil. Within this study, it was ...

The 'iron bacteria' are a collection of morphologically and phylogenetically heterogeneous prokaryotes. They include some of the first micro-organisms to be observed and described, and continue to be the subject of a considerable body of fundamental and applied microbiological research. While species of iron-oxidizing bacteria can be found in many different phyla, most are affiliated with the P...

The evolution of biological complexity beyond single-celled organisms was linked temporally with the development of an oxygen atmosphere. Functionally, this linkage can be attributed to oxygen ranking high in both abundance and electronegativity amongst the stable elements of the universe. That is, reduction of oxygen provides for close to the largest possible transfer of energy for each electr...

the aim of the present study was to examine the effects of a course of aerobic exercise on pulmonary function and tolerance of activity in asthmatic patients. among the asthmatic patients, 36 patients (m= 16, f= 20) were chosen after clinical examinations, pulmonary function test, skin prick test (spt) for aeroallergen and a six minute walk test (6mwt) on their own free will. a patient was said...

When seeds of Echinochloa crusgalli var. oryzicola are germinated in dark anaerobic conditions (99.995% N(2)), the seedlings do not have detectable protochlorophyll(ide). Two hours after exposure to light aerobic conditions, they begin to synthesize chlorophyll. The lag in greening is shorter in seedlings exposed to light for 24 hours before exposure to air. Seedlings maintained in light anaero...

Firefighting is dangerous work. Each year, approximately 80,000 firefighters are injured and about 100 firefighters lose their lives in the line of duty. Firefighters face multiple dangers in the course of their work; they encounter toxic fumes, dangerous products of combustion, high radiant heat loads, and a chaotic work environment. Despite the myriad dangers, the leading cause of line-of-dut...