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M Lubis
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Environmental Science Health Professions Medicine & Pharmacology

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Lingkungan Pengendapan Perairan Selatan Estuaria Bagan dan Sekitarnya Pantai Timur Sumatera Indonesia Rifardi Rifardi; Edwar Rufli; Andre Rangga; M Lubis; Yenica Roza; Putri Nilam Sari
Jurnal Ilmu Lingkungan Vol 5, No 1 (2011): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.5.1.p.66-81

Abstract

The main purpose of this study is to clarify the relation between characteristics of sediments andenvironmental condition based on the analysis of surface sediment samples and total suspendedsediments from the Southern of Bagan Estuary which is located on the East Coast of SumateraIsland, Indonesia. Surface sediment samples and total suspended sediments were collected at 21stations using sediment sampler and van dorm sampler, respectively, in June 2010. The sampleswere analyzed by various analytical approaches i.e. mechanical grain size analysis, ignitionloss method, bulk chemical analysis using atomic absorption spectrometer and sand-graincomposition analysis. In general, the estuary area is characterized by finer sediments (medium-grained sand), by the lower values of organic matters (less than10%), and by the higher contentof Fe and Al per non calcareous clastic content, which is an index of terrigenous material inputrespectively. Concentration of total suspended sediment near bottom is higher than that ofsurface water, indicating sediments turbulented by strong current system. Judging from thedistribution pattern of the Fe and K contents at surface sediment, terrigenous materials weretransported northwestward along the coast of Pekaitan Village and of Barkey Island by strongebb current. Contrastingly, terrigenous materials were transported southeastward along thearea located between coast of Pekaitan Village and of Barkey Island by strong tide current.Geographical distribution of sand grain composition (lithogenous) strongly indicate thatterrigenous materials derived from the hinterland of Sumatera Island discharged through RokanRiver to the Southern of Bagan Estuary. In addition to, terrigenous materials are also resultedfrom coast erosion of Pekaitan Village and of Barkey Island, and turbulented sediments.
The efficacy of single-dose albendazole for the treatment of ascariasis Deddy S Putra; W Dalimunthe; M Lubis; S Pasaribu; Chairuddin Lubis
Paediatrica Indonesiana Vol 45 No 3 (2005): May 2005
Publisher : Indonesian Pediatric Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14238/pi45.3.2005.118-22

Abstract

Objective This study aims to assess the efficacy of single-dosealbendazole in treating mild, moderate, and severe ascariasis.Methods Stool specimens were collected from randomly selectedelementary school children in Suka village, Sumatera Utara, fromMarch to April 2002. Based on the number of eggs per gram feces(NEPG), samples were categorized as mild (NEPG < 7000), mod-erate (NEPG 7000-35,000), or severe (NEPG > 35,000) ascari-asis. All subjects then received 400 mg albendazole orally. NEPGcount was repeated on the 7 th , 14 th , 21 st and 28 th day after treat-ment. The chi-square test was used to compare cure rates be-tween subjects with mild, moderate, and severe ascariasis. TheANOVA and Kruskal-Wallis tests were employed to analyze quan-titative data.Results From the 134 specimens collected, we found mild ascari-asis in 57 (42.5%), moderate ascariasis in 57 (42.5%), and severeascariasis in 20 (15%). There was no significant difference be-tween the three groups in NEPG after treatment (P>0.05). Thecure rate and egg reduction rate on day 28 after treatment was 100%.Conclusion A single dose of 400 mg albendazole is effective forthe treatment of mild, moderate, and severe ascariasis.
Co-Authors Andre Rangga Chairuddin Lubis Deddy S Putra Edwar Rufli Jamhari Jamhari Rifardi Rifardi S Pasaribu W Dalimunthe Yenica Roza