Radial profile measurement of electron temperature in edge stochastic magnetic field layer of LHD using intensity ratio of extreme ultraviolet line emissions.

Vertical profile of neon line emissions in 30-650 Å wavelength range has been observed in horizontally elongated plasma cross section of Large Helical Device (LHD). Intensity ratio between the neon line emissions is studied to measure the radial profile of electron temperature in the edge stochastic magnetic field layer of LHD. The edge temperature profile successfully obtained from the line ratio of NeVIII 2s-3p to 2p-3s transitions is compared with the simulation based on three-dimensional edge transport code. The result shows a reasonably good agreement with the edge temperature profile analyzed from atomic data and analysis structure code. The electron temperature at last closed flux surface measured from the intensity ratio is also in good agreement with that measured from Thomson scattering.

Targeting newly enrolled low-age school children for the control of the intestinal helminth infection in rural Nepal.

This study aims to identify an effective intervention group for the control of the intestinal helminth infection among school-age children in rural Nepal. We examined 1677 stool samples of school-age children from 25 schools and 1014 samples from 25 communities in rural Nepal. We used formalin-ether sedimentation technique for the microscopic examination of the stool samples and identified three major intestinal helminths: Ascariasis lumbricoides, hookworm and Trichuris trichiura. Our results revealed that the newly enrolled under-6-year-old children at the schools were more widely infected with at least one of the three major helminths than those in the communities (odds ratio [OR] 2.29). We detected a significant difference in the prevalence of A. lumbricoides (OR 1.70), hookworm (OR 2.57) and T.trichiura (OR 3.23) between under-6-year-old children at the schools and those at the communities. The study results suggest that an appropriate deworming programme is needed for the newly enrolled under-6-year-old children in the primary schools in Nepal.

Community perception and readiness for anti-helminth programmes in rural Nepal.

We report on the community perception of helminth infection and readiness to participate in and pay for a community-based anti-helminth programme in rural Nepal. For data collection, 28 focus group discussions (FGDs) were conducted in 28 communities. The FGD results revealed that community members were lacking in scientific knowledge about helminth infection. They also had an unusual perception about it--they believed that a 'mul juka' (vital worm) should reside in every person's stomach from birth, and must never be killed. Nonetheless, the results showed that the community members were willing to participate in and were ready to contribute their resources to the anti-helminth programmes as long as modern medicine would not kill the 'mul juka'. Such community readiness provides us with hope for developing a sustainable anti-helminth programme at the community level through effective health education.

Mumbai disease in far western Nepal: HIV infection and syphilis among male migrant-returnees and non-migrants.

OBJECTIVE: To measure the seroprevalence of human immunodeficiency virus (HIV) infection and syphilis, and to assess the behavioural risk factors for these infections among migrant-returnees and non-migrants in far western Nepal. METHODS: In April 2001, we recruited 97 male migrant-returnees and 40 non-migrants from five rural villages in Doti district where migration to Mumbai is common. For data collection, we conducted a serological examination for HIV and syphilis, and a perception and behaviour survey on HIV and other sexually transmitted infections. RESULTS: We found that 11 of 137 men (8%) were positive for HIV infection and 30 men (22%) for syphilis. The respondents, especially the migrant-returnees from Mumbai, were engaging in risky behaviours such as pre- or extramarital sex, and sex with multiple partners, including sex workers. CONCLUSIONS: This study revealed high HIV and syphilis prevalence among the male migrant-returnees and non-migrants in far western Nepal where migration to Mumbai is common. The prevalent behaviours, particularly among the migrant-returnees, imply urgent needs of the behavioural modification programme in this area to prevent the spread of HIV infection to general population.

A traditional healers' training model in rural Nepal: strengthening their roles in community health.

In this paper, we evaluated a western medical training model for traditional healers (THs) in rural Nepal. We used semi-structured interviews to compare 48 trainees with 30 randomly selected untrained THs, 1 year after the training was completed. We asked them about their knowledge of the causes, prevention and treatment of common illnesses and HIV/AIDS, and their relationship with government health workers (GHWs) in the area. Nine GHWs were also interviewed about their perceptions of THs. We found that trained THs had a better knowledge of allopathic medicine, practised modern treatment using first aid kits, and were more likely to refer patients to GHWs. They also improved their relationships with the GHWs. Up-scaling this model is a challenge for improving community health care in Nepal in the future.