• Title/Summary/Keyword: LAOS

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Chemical Composition of Some Tropical Foliage Species and Their Intake and Digestibility by Goats

  • Kongmanila, Daovy;Ledin, Inger
    • Asian-Australasian Journal of Animal Sciences
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    • v.22 no.6
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    • pp.803-811
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    • 2009
  • The chemical composition and water extractable dry matter (DM) of foliages from Erythrina (Erythrina variegata), Fig (Ficus racemosa), Jackfruit (Artocarpus heterophyllus), Jujube (Ziziphus jujuba Mill), Kapok (Ceiba pentandra) and Mango (Mangifera indica) and the feed intake, digestibility and N retention when feeding these foliages were studied in two experiments. In Experiment 1, 12 male goats, 3.5 months old and weighing 14.6 kg, were randomly allocated to a diet consisting of one of the foliages in a change-over design with three periods. The foliages were offered ad libitum at the level of 130% of the average daily feed intake. The Erythrina foliage had a low content of DM and condensed tannins (CT) and a high concentration of crude protein (CP) in leaves plus petioles (193 g/kg DM) and stem, while the Mango foliage had a low CP (69 g/kg DM) and high DM content. The other foliages were intermediate. High content of CT was found in the leaves plus petioles of Jackfruit foliage and in the stem of Fig and Mango foliage. There was a difference in feed intake, nutrient intake, apparent digestibility and N retention between the foliages, with Erythrina, Jackfruit and Kapok foliage being significantly higher in these parameters than Fig, Jujube and Mango foliage. The water extractable DM could be used to estimate N retention, but not DM digestibility in this study. In Experiment 2, 4 male goats weighing 13.4 kg and 6 months old were allocated to a 4${\times}$4 Latin square design. The treatments were: water spinach ad libitum and Fig, Jujube or Mango foliage ad libitum +0.5% of BW as water spinach DM. Feed intake, apparent digestibility and N retention were not significantly different among the foliage diets, but higher than for water spinach alone (p<0.05). Supplementation with water spinach to a diet consisting of low quality foliages such as Fig, Jujube and Mango, increased DM and CP intake, apparent digestibility and N retention, compared to feeding these foliages as sole feeds.

First Record of Paramphistomes Fischoederius cobboldi and Paramphistomum epiclitum Detected in Bovine Rumen from a Local Market of Savannakhet Province, Lao PDR

  • Sanguankiat, Surapol;Sato, Marcello Otake;Sato, Megumi;Maipanich, Wanna;Yoonuan, Tippayarat;Pongvongsa, Tiengkham;Boupha, Boungnong;Chigusa, Yuichi;Moji, Kazuhiko;Waikagul, Jitra
    • Parasites, Hosts and Diseases
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    • v.54 no.4
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    • pp.543-547
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    • 2016
  • In the present study, we report on the occurrence of paramphistomes, Fischoederius cobboldi and Paramphistomum epiclitum, in Lao PDR with the basis of molecular data. Parasite materials were collected from bovines bred in Ban Lahanam area, Savannakhet Province, Lao PDR at Lahanam public market. Morphological observations indicated 2 different species of paramphistomes. The mitochondrial gene cox1 of the specimens was successfully amplified by PCR and DNA sequencing was carried out for diagnosis of 11 specimens. Pairwise alignment of cox1 sequences were performed and confirmed F. cobboldi and P. epiclitum infecting bovines in Laos. Although there were many limiting points, as the small number of worm samples, and the restricted access of the animal host materials, we confirmed for the first time that 2 species of paramphistomes, F. cobboldi and P. epiclitum, are distributed in Lao PDR. More studies are needed to confirm the paramphistome species present in Savannakhet and its hosts to clear the natural history of these parasites of ruminants in the region and measure the impact of this parasite infection in the life and health of the local people.

Indochinamon ou (Crustacea: Potamidae) as a New Second Intermediate Host for Paragonimus harinasutai in Luang Prabang Province, Lao PDR

  • Sohn, Woon-Mok;Ryu, Jae-Sook;Min, Duk-Young;Song, Hyun-Ouk;Rim, Han-Jong;Vonghachack, Youthanavanh;Bouakhasith, Daluny;Banouvong, Virasack
    • Parasites, Hosts and Diseases
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    • v.47 no.1
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    • pp.25-29
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    • 2009
  • Paragonimus harinasutai metacercariae were found in a species of freshwater crab, Indochinamon ou, collected in a small stream of Namback District, Luang Prabang Province, Lao PDR. Adult flukes were recovered after experimental infection of the metacercariae to dogs. Metacercariae were round or slightly elliptical, $0.666{\times}0.626\;mm$ in average size, and had a thin cyst wall of about $20{\mu}m$ in thickness, a black excretory bladder, convoluted ceca, and some pinkish materials in the body. Adults were somewhat elongated, $95.2{\times}36.5\;mm$ in average size, covered with single-tipped tegumental spines, had a smaller oral sucker than the ventral sucker, a moderately branched ovary, and 5-6 lobulated testes. Eggs were ovoid and bilaterally symmetrical in shape, $79{\times}45{\mu}m$ in average size, and had a uniformly thickened shell. By the present study, it has been confirmed that I. ou is a new second intermediate host for P. harinasutai.

Allelic Diversity and Geographical Distribution of the Gene Encoding Plasmodium falciparum Merozoite Surface Protein-3 in Thailand

  • Sawaswong, Vorthon;Simpalipan, Phumin;Siripoon, Napaporn;Harnyuttanakorn, Pongchai;Pattaradilokrat, Sittiporn
    • Parasites, Hosts and Diseases
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    • v.53 no.2
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    • pp.177-187
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    • 2015
  • Merozoite surface proteins (MSPs) of malaria parasites play critical roles during the erythrocyte invasion and so are potential candidates for malaria vaccine development. However, because MSPs are often under strong immune selection, they can exhibit extensive genetic diversity. The gene encoding the merozoite surface protein-3 (MSP-3) of Plasmodium falciparum displays 2 allelic types, K1 and 3D7. In Thailand, the allelic frequency of the P. falciparum msp-3 gene was evaluated in a single P. falciparum population in Tak at the Thailand and Myanmar border. However, no study has yet looked at the extent of genetic diversity of the msp-3 gene in P. falciparum populations in other localities. Here, we genotyped the msp-3 alleles of 63 P. falciparum samples collected from 5 geographical populations along the borders of Thailand with 3 neighboring countries (Myanmar, Laos, and Cambodia). Our study indicated that the K1 and 3D7 alleles co-existed, but at different proportions in different Thai P. falciparum populations. K1 was more prevalent in populations at the Thailand-Myanmar and Thailand-Cambodia borders, whilst 3D7 was more prevalent at the Thailand-Laos border. Global analysis of the msp-3 allele frequencies revealed that proportions of K1 and 3D7 alleles of msp-3 also varied in different continents, suggesting the divergence of malaria parasite populations. In conclusion, the variation in the msp-3 allelic patterns of P. falciparum in Thailand provides fundamental knowledge for inferring the P. falciparum population structure and for the best design of msp-3 based malaria vaccines.

Establishment of flood forecasting and warning system in the un-gauged small and medium watershed through ODA (ODA사업을 통한 미계측 중소하천 유역 홍수예경보시스템 구축)

  • Koh, Deuk-Koo;Lee, Chihun;Jeon, Jeibok;Go, Sukhyon
    • Journal of Korea Water Resources Association
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    • v.54 no.6
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    • pp.381-393
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    • 2021
  • As part of the National Disaster Management Research Institute's Official Development Assistance (ODA) projects for transferring new technologies in the field of disaster-safety management, a flood forecasting and warning system was established in 2019 targeting the Borikhan in the Namxan River Basin in Bolikhamxai Province, Laos. In the target area, which is an ungauged small and medium river basin, observation stations for real-time monitoring of rainfall and runoff and alarm stations were installed, and a software that performs real-time data management and flood forecasting and warning functions was also developed. In order to establish a flood warning standard and develop a nomograph for flood prediction, hydraulic and hydrological analysis was performed based on the 30-year annual maximum daily rainfall data and river morphology survey results in the target area. This paper introduces the process and methodology used in this study, and presents the results of the system's applicability review based on the data observed and collected in 2020 after system installation.

Active High pass filter with Notch Characteristic using Uniformly Distirbuted RC Line

  • Tancharoen, Wasan;Panyanouvong, Nouanchanh;Wachirarattanapornkul, Sorapong;Janchitrapongvej, Kanok
    • 제어로봇시스템학회:학술대회논문집
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    • 2004.08a
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    • pp.1972-1974
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    • 2004
  • This paper describes the high pass filter with notch charecteristics. The proposed circuits configuration consists of two uniformly distributed RC line (herein after is called URC) and two gain amplifiers ($K_1$ and $K_2$). With the appropriate $K_1$ and $K_2$ , the circuit has a steeper slope of magnitude response at pass band steeper than using a single gain amplifier.

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The Socioeconomic Burden of Cancer in Member Countries of the Association of Southeast Asian Nations (ASEAN) - Stakeholder Meeting Report

  • Jan, Stephen;Kimman, Merel;Kingston, David;Woodward, Mark
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.2
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    • pp.407-409
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    • 2012
  • The ACTION (Asean CosTs In ONcology) Study will be one of the largest observational studies of the burden of cancer ever conducted in Asia. The study will involve 10,000 newly diagnosed patients with cancer and will be carried out across eight low- and middle income countries within the ASEAN region (Indonesia, Thailand, Malaysia, Cambodia, Myanmar, Viet Nam, Laos and the Philippines). Patients will be interviewed three times over 12 months to assess their health, use of health care services, out of pocket costs related to their illness, social and quality of life issues. The project is a collaboration between the George Institute for Global Health, the ASEAN Foundation and Roche. The aim of the study is to assess the health and socioeconomic impact of cancer on patients in ASEAN communities, and the factors that may impact on these outcomes.

Feasibility Study for the cross border transmission project in Cambodia (캄보디아 국경연계 송전망 타당성 연구)

  • Baek, S.D.;Kim, J.H.;Kim, S.H.;Choi, S.J.
    • Proceedings of the KIEE Conference
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    • 2006.07a
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    • pp.38-39
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    • 2006
  • KEPCO is executing a project in Cambodia consisting of two components, "Power Development Master Plan and Institutional Strengthening" and "Greater Mekong Sub-region (GMS) Power Project Preparation" upon request by the government of the Ministry of Industry, Mines and Energy of Cambodia, contracted on $29^{th}$ September 2005. This paper includes a basic design and review of economical efficiency for constructing the two (2) cross border 115 kV transmission lines, which run from the border of Vietnam and Laos to Cambodia, and four (4) 115kV substations. The main contents of the paper include the process of design and results of a review of line route selection, tower and hardware design regarding transmission line design, as well as the type of substation, and arrangement and specifications of equipment with expects to substation design. Also, long-term demand forecasting, and an economic analysis of the project area are included.

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