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All Journal Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Medical Journal of Indonesia Jurnal Hidrosfir Indonesia
Suwarso Suwarso
Balai Penelitian Tanaman Tembakau dan Serat Jl. Raya Karangploso, Kotak Pos 199, Malang
Immunology & microbiology Medicine & Pharmacology Neuroscience

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Hepatitis-C virus (HCV) Suwarso, Suwarso
Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Vol 25, No 03 (1993)
Publisher : Journal of the Medical Sciences (Berkala Ilmu Kedokteran)

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Abstract

A new problem on hepatitis for Indonesian is hepatitis-C virus (HCV). This infection is endemic, majority sub-clinic and progressive in chronic. Viral transmission is primarily via a parenteral route, while other routes are still in debate.Diagnostic approach should be focused on how this virus developed.KeyWords: hepatitis-C virus molecular biology Westem-blot-HCV blood transfusion epidemiology
Sensitivitas rapid test untuk mendeteksi hepatitis surface antigen (HBsAg) pada penderita hepatitis-B Suwarso, Suwarso
Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Vol 28, No 03 (1996)
Publisher : Journal of the Medical Sciences (Berkala Ilmu Kedokteran)

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Abstract

A new rapid-test, sandwich immunochromatography assay technique has been recently introduced for the routine, rapid, qualitative detection of the presence hepatitis-B surface antigen (HBsAgl. To evaluate the sensitivity of rapid test, we studied 39 sera positive and one sera negative for HBsAg with conventional ELISA method. The study found that the minimal detectable level of HBsAg with rapid test was 4.03 ng/ml (range 3,25-4,03 ng/ml), it was 8 times less sensitive than conventional ELISA method (4,03 vs 0,47 ng/m1)• Many factors such as "eddy diffusion" and structure of HBsAg, humidity, direct contact with sunlight and sera of borderline-low level of HBsAg with conventional ELISA had a potency for lower sensitivity of rapid test; conversely, technical factors such as adhesion, migration and viscosity of the samples do not.Key words : rapid test - dry chemistry hepatitis surface antigen (HBsAg) - sensitivity - ELISA.
False positive and specificity of anti-HIV-1 EL/SA kit : features, causative factors, and its confirmatory test Suwarso, Suwarso
Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Vol 27, No 04 (1995)
Publisher : Universitas Gadjah Mada

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As screening tool for HIV-1 infection, anti HIV-1 ELISA kit with high sensitivity was proved to be very efficient. Because of its high sensitivity, the use of the kit to screen HIV-1 infection in low risk individuals or in seroprevalence study in population of non-endemic area will reduce its specificity. Therefore, there will be many false positive results which, in turn, will give psychosocial and economical impact to the individuals In question. To evaluate false positive results and specificity of anti HIV-1 kit, 1028 normal individuals with low risk of HIV-1 infection were studied. All positive results from HIV-1 ELISA kit confirmed with confirmative ELISA and Western-blot analysis. The results showed that HIV-1 ELISA kit gave false positive results of 1.17% and specificity of 98,38%. Ninety one point seven percent of false positive results had low-ODs ( 2 ODBP) and poor reproducibility value (8,3%). Seventy five percent of these false positive were from individuals aged 1-15 years and not related to gender as well as socioeconomical status. The probable causes of false positive results are endogenous factors in sera samples such as alteration of density of sera during storage, the presence of anti-granulocyte, anti-HLA, antibody to cultured lymphocyte h9/lllb, and polyclonal hyperglobulinemia. Confirmatory ELISA with antigen control had the same sensitivity and specificity as Western-blot. Therefore, ELISA with antigen control can be used for confirmation test of positive or questionable results obtained from anti HIV-1 ELISA. The kit is cheaper and faster, and is very practical to use, especially in laboratories equipped with ELISA system.Key Word : anti-HIV-1 ELISA - specificity - false positive - confirmatory ELISA - Western-blot.
Isolation and presumptive serological characterization of hantavirus from wild rat (Bandicota indica) Praseno, Praseno; Suwarso, Suwarso
Medical Journal of Indonesia Vol 7, No 3 (1998): July-September
Publisher : Faculty of Medicine Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (514.972 KB) | DOI: 10.13181/mji.v7i3.763

Abstract

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PELUANG UNTUK MENGURANGI BAHAYA KEBAKARAN Taufik, Muhammad; Setiawan, Budi I; Prasetyo, Lilik B; Pandjaitan, Nora H; suwarso, suwarso
Jurnal Hidrosfir Indonesia Vol 5, No 2 (2010)
Publisher : Jurnal Hidrosfir Indonesia

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Abstract

Efforts to anticipate and overcome fire occurrence in wetland wood industries are not effective to reduce fire occurrence in dry season. This paper presents our research in Sebangun Bumi Andalas Wood Industries (SBAWI), South Sumatra that aims to (a) find effective water table depth to reduce fire danger, and (b) propose forest management schemes based on water management to reduce fire danger. We monitored daily rainfall, air temperature, and water table depth for period of 1 April 2009 to 11 May 2010 for data input to our model. Fire danger rating was assessed using KBDI model that have been modified to meet local condition of SBAWI, South Sumatra. The results showed that KBDI reached extreme level in August and September 2009 when rainfall was low. Using an analysis of time intensity curve (TI curve) of KBDI, we obtained KBDI onset rate was 12/day. Critical water table depth that is able to reduce KBDI value was 0.66m. The more water table depth than this value, the more KBDI value was. The onset rate was used as basis for water management option to maintain water table depth less than the critical value. Several water management options were described in this paper based on fire danger level and season.
PELUANG UNTUK MENGURANGI BAHAYA KEBAKARAN Taufik, Muhammad; Setiawan, Budi I; Prasetyo, Lilik B; Pandjaitan, Nora H; suwarso, suwarso
Jurnal Hidrosfir Indonesia Vol 5, No 2 (2010)
Publisher : Jurnal Hidrosfir Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (582.378 KB)

Abstract

Efforts to anticipate and overcome fire occurrence in wetland wood industries are not effective to reduce fire occurrence in dry season. This paper presents our research in Sebangun Bumi Andalas Wood Industries (SBAWI), South Sumatra that aims to (a) find effective water table depth to reduce fire danger, and (b) propose forest management schemes based on water management to reduce fire danger. We monitored daily rainfall, air temperature, and water table depth for period of 1 April 2009 to 11 May 2010 for data input to our model. Fire danger rating was assessed using KBDI model that have been modified to meet local condition of SBAWI, South Sumatra. The results showed that KBDI reached extreme level in August and September 2009 when rainfall was low. Using an analysis of time intensity curve (TI curve) of KBDI, we obtained KBDI onset rate was 12/day. Critical water table depth that is able to reduce KBDI value was 0.66m. The more water table depth than this value, the more KBDI value was. The onset rate was used as basis for water management option to maintain water table depth less than the critical value. Several water management options were described in this paper based on fire danger level and season.
Co-Authors Budi I Setiawan I Gusti Ngurah Antaryama Lilik B Prasetyo MUHAMMAD TAUFIK Nora H. Pandjaitan Praseno Praseno