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FRACTAL DIMENSION ESTIMATES FOR INVARIANT SETS OF NON-INJECTIVE MAPS
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作者 QuChengqin ZhouZuoling 《Analysis in Theory and Applications》 2003年第2期108-114,共7页
关键词 Riemannian manifold degree of non-injectivity fractal dimension
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Prevalence of Human Immunodeficiency Virus (HIV), Risk Behavior, and Recent Substance Use in a Sample of Urban Drug Users: Findings by Race and Sex
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作者 Rebecca C. Trenz Lauren R. Pacek +3 位作者 Michael Scherer Paul T. Harrell Julia Zur William W. Latimer 《World Journal of AIDS》 2012年第3期183-193,共11页
The aim of the current study was to examine the prevalence of HIV, past six-month illicit drug use, and risk behaviors among a population of heavy drug users living in an urban setting. Although many studies investiga... The aim of the current study was to examine the prevalence of HIV, past six-month illicit drug use, and risk behaviors among a population of heavy drug users living in an urban setting. Although many studies investigate substance use, sex-risk behavior, and HIV by race and gender, no studies have examined these variables simultaneously. The current study seeks to fill this gap in the literature by exploring HIV prevalence among a predominantly heterosexual sample of recent substance users by injection drug use (IDU) status, race, and sex. Baseline data from the Baltimore site of the NEURO-HIV epidemiologic study was used in this study. This study examines neuropsychological and social-behavioral risk factors of HIV, hepatitis A, hepatitis B, and hepatitis C among both injection and non-injection drug users. Descriptive statistics and chi-square statistics were used in data analyses. Blood and urine samples were obtained to test for the presence of recent drug use, viral hepatitis, HIV, and other sexually transmitted diseases (STDs). Findings presented here have several important implications for HIV prevention and care among substance users. Intervention programs that incorporate substance use treatment in addition to HIV education, particularly with respect to substance use and sex risk behavior are imperative. 展开更多
关键词 HIV PREVALENCE INJECTION DRUG USE non-injection DRUG USE SEX Risk Behavior
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Synthesis and white-light emission character of CdS magic-sized nanocrystals 被引量:2
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作者 Ji Dong Wang Shu Min Han Dan Dan Ke 《Chinese Chemical Letters》 SCIE CAS CSCD 2012年第12期1407-1410,共4页
Family 373 and 406 of CdS magic-sized nanocrystals (MSNCs) were synthesized by a one-pot non-injection approach and white-light emission was generated from the coexistence of them. This light had excellent color cha... Family 373 and 406 of CdS magic-sized nanocrystals (MSNCs) were synthesized by a one-pot non-injection approach and white-light emission was generated from the coexistence of them. This light had excellent color characteristics, as defined by their pure white CIE (Commission International de l'Eclairage) color coordinates (0.328, 0.343), and it correlated with a color temperature of 5696 K. A probable thermodynamic equilibrium was proposed to explain the white-light emission behavior in this letter. 展开更多
关键词 White-light emission CdS magic-sized nanocrystals One-pot non-injection approach Thermodynamic equilibrium
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