Purpose. To increase the stability of wellbore during its construction in unstable rocks. Methodology. solve set tasks, an integrated approach is used work, which includes critical analysis and generalization scientific technical achievements combination with theoretical experimental research. Findings. Factors influencing borehole walls conditions prone to rock slides falls are analyzed. Exped...

The 10-90 gap, double burden of disease, lack of infrastructure, resource scarcity: developing countries face a series of circumstances and determinants which inhibit progress in population health. Add to this constellation of challenges another set related to knowledge sharing, including the "know-do" gap and the digital divide, and the barriers to health in the Global South loom larger still....

T he effects of self-induced starvation and chronic vomiting can cause significant and often irreversible changes of the dentition and oral cavity, besides the complex medical and psychiatric symptoms. A dental emergency may be the patient's first confrontation of damage and deleterious sequelae caused by the eating disorder. The dental complications can cause crumbling teeth, loss of restorati...

introduction recently, employment of rotary tillers has been expanded in gardens and small farms, especially in the northern of iran. however using the l-shaped blades in the conventional rotary tillers have some problems such as severe vibration problems, weeds stucking around the blades, forming the plow pan and lower performance due to the less powers of such small rototillers. therefore in ...

We have known for many decades that lead exposure in children causes longlasting cognitive dysfunction (Byers and Lord 1943; McKhann 1932). A great number of basic and human health studies have shown in great detail the neural mechanisms and behavioral consequences of developmental lead intoxication and how early-life lead exposure can lead to lifelong cognitive and emotional impairment. We hav...

Based on the test results, a section of working bodies was selected for strip tillage, theheight, length soil disks were determined experimentally. As well as result acceptable tillage is combination bodies, consisting one cutting paws with soilproviding high rates crumbling quality cleansing them stubble and roots.

More than 270 000 people are trapped in east Aleppo with dwindling supplies of food, water and fuel. Humanitarian organizations have not been allowed to deliver aid, including medical supplies from WHO since the besiegement of the city on 7 July. Within the past week, over 840 people have been injured, almost a third of them children, while the health facilities that would treat them are crumbl...