Enhanced acoustic mode coupling resulting from an internal solitary wave approaching the shelfbreak in the South China Sea.

Internal waves and bathymetric variation create time- and space-dependent alterations in the ocean acoustic waveguide, and cause subsequent coupling of acoustic energy between propagating normal modes. In this paper, the criterion for adiabatic invariance is extended to the case of an internal solitary wave (ISW) encountering a sloping bathymetry (i.e.

Prevalence of human immunodeficiency virus and its association with hepatitis B, C, and D virus infections among incarcerated male substance abusers in Taiwan.

Taiwan has been facing a rising epidemic of human immunodeficiency virus (HIV) infection since 2004. Injection drug users comprised 38.5% of accumulated HIV cases by 2007.

Prevalence of heroin and methamphetamine male users in the northern Taiwan, 1999-2002: capture-recapture estimates.

Background: Illegal drug use and related problems have been emerging as an important public health issue in Taiwan. Via the capture-recapture approach, the present study aimed to offer insights into the size of heroin and methamphetamine male user population in the northern Taiwan during the period from 1999 to 2002.

Methods: Annual lists of male subjects were collated from both judiciary and medical systems in Taoyuan County, Taiwan.

Gender difference in the clinical and behavioral characteristics of human immunodeficiency virus-infected injection drug users in Taiwan.

Background/purpose: Injection drug users (IDUs) have become the major contributors to the human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome epidemic in Taiwan, accounting for more than 60% of new cases in 2005. In Taiwan, gender difference in risk factors for HIV among IDUs has not been reported before. We studied the clinical and sociodemographic characteristics, sexual behaviors, drug use histories and criminal records of male and female HIV-infected IDUs.

Psychiatric comorbidity and gender difference among treatment-seeking heroin abusers in Taiwan.

The objectives of the present study were to estimate the psychiatric comorbidity of Taiwanese heroin users seeking treatment and to identify the gender differences in psychiatric comorbidity and drug use behavior. Subjects were interviewed using a structured questionnaire on drug use behavior and the Mini International Neuropsychiatric Interview for psychiatric disorders. Of the subjects, 58.