BACKGROUND Although the initiation of injection drug use has been well characterized among at-risk youth, factors that support or impede cessation of injection drug use have received less attention. We sought to identify socioeconomic factors associated with cessation of injection drug use among street-involved youth. METHODS From September 2005 to May 2015, data were collected from the At-Ri...

Intramuscular injection of a small amount of radioactive sodium (Na24) was used by Kety as an index of local blood flow in skeletal muscle (1, 2). The hydrophilic sodium ions are known to exchange fairly slowly over many biological membranes, in contrast to the lipophilic inert gases to which such membranes offer no diffusion barriers (3). Hence a radioactive inert gas such as xenon'33 is proba...

Electrical spin injection into silicon was studied in a ferromagnet/insulator/silicon/insulator/ ferromagnet structure, where the insulator is Si3N4. Si3N4 barriers conduct by hopping conduction at low voltages, but switch to Fowler-Nordheim tunneling at high voltages. In the Fowler-Nordheim tunneling regime a magnetic field dependence of the output current consistent with spin dependent transp...

nowadays, thousands tons of chemicals material are used to increase agricultural production that provides a risky situation for the communities. recently, biological or organic agriculture is considered to get rid of such problems. but this style of agriculture is facing with many difficulties and challenges. this study was performed in three phases by using delphi method. in this regard, the s...

background: internal barriers are an important group of barriers to blood glucose level control. finding the viewpoints of patients, their families and medical team on these barriers is an important step towards correct planning and effective control of blood glucose. this study aimed to find and compare viewpoints of patients, their families and medical team about internal barriers to control ...

this study aimed at identifying and analyzing contextual barriers of organizational entrepreneurship in the islamic republic of iran ministry of sport and youth. this study was applied in terms of goals, descriptive with regard to strategy. the method was survey conducted by mixed method (qualitative-quantitative). after reviewing the literature, experts had deep interviews by qualitative metho...

Background: Contraception is one of the key strategies to achieving sustainable developments but access has been low among youths in developing countries. It thus imperative contextually understand uptake newly developed contraceptive methods undergraduate Nigerian students. This study assessed knowledge, attitude and practices students Bowen University Teaching Hospital Ogbomoso on self-inject...