STUDY ON DISTRIBUTION OF ADVANCE SUPPORTING STRESS AND STABILITY OF COAL PILLAR DURING THE WORKING FACE PASSING THROUGH ABANDON ROADWAY

Study on distribution of advance supporting stress and stability of coal pillar during the working face passing through abandon roadway

The working face 1303 passing through the gob was studied by means of field investigation, laboratory test, theoretical analysis and numerical simulation, taking u11-200ps the engineering geological conditions of 1303 working face in the north wing of a mine in Datong, Shanxi Province as the background.The results show that the influence range of t

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A longitudinal investigation of the effects of parental discipline strategies on social competence in early childhood

In the current study, we investigated the iphone 13 price dallas associations between parenting discipline strategies (i.e., physical punishment and non-violent punishment) and social development using n = 3265 reports from primary caregivers across three waves of data.Analyses were conducted using cross-lagged structural equation modeling, where w

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Antibacterial Prodrugs to Overcome Bacterial Resistance

Bacterial resistance to present antibiotics is emerging at a high pace that makes the development of new treatments a must.At the same time, the development of novel antibiotics for resistant bacteria is a slow-paced process.Amid the massive need for new drug treatments to combat resistance, read more time and effort preserving approaches, like the

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