Walailak Journal of Science and Technology最新文献_第9页

Population Size of Indo-Pacific Humpback Dolphins (Sousa chinensis) at Khanom, Thailand 泰国Khanom的印度太平洋座头海豚(Sousa chinensis)的种群规模

Walailak Journal of Science and Technology Pub Date : 2011-11-06 DOI: 10.2004/WJST.V7I2.35

M. Jaroensutasinee, Suwat Jutapruet, K. Jaroensutasinee

{"title":"Population Size of Indo-Pacific Humpback Dolphins (Sousa chinensis) at Khanom, Thailand","authors":"M. Jaroensutasinee, Suwat Jutapruet, K. Jaroensutasinee","doi":"10.2004/WJST.V7I2.35","DOIUrl":"https://doi.org/10.2004/WJST.V7I2.35","url":null,"abstract":"Indo-Pacific humpback dolphins (Sousa chinensis) were estimated with the Mark-Recapture Model from a boat-based photo-identification survey at Khanom, Nakhon Si Thammarat, Thailand from July 2008 - June 2009. Indo-Pacific humpback dolphins were encountered at a water depth of 1.1 - 7.5 m, a distance off shore of 21 - 1,021 m and water transparency of 67 - 256 cm. Groups and solitary IndoPacific humpback dolphins were sighted 39 times. They were extensively viewed in the coastal zone between Nang Kham bay to Thong Ching bay. There were 34 sightings of groups and five sightings of solitary individuals. A total of 49 individuals were identified and catalogued. There were 33 identified adults, eight juveniles and eight calves. The group size of humpback dolphins varied from 2 - 20 individuals. The group size of adults ranged between 2 - 12 dolphins. The juveniles group size ranged from 0 - 6 dolphins. There were no groups observed consisting solely of juveniles. Groups without juveniles were seen 8 times. The number of calves per group ranged between 0 - 4 individuals. The percentage and number of calves per group were significantly lower than the percentage and number of juveniles. The mean size of groups containing calves was larger than non-calf groups. The estimated abundance of this population from the Jolly-Seber method was 49 individuals.","PeriodicalId":38275,"journal":{"name":"Walailak Journal of Science and Technology","volume":"7 1","pages":"115-126"},"PeriodicalIF":0.0,"publicationDate":"2011-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68185850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Tropical Montane Cloud Forest Characteristics in Southern Thailand 泰国南部热带山地云雾林特征

Walailak Journal of Science and Technology Pub Date : 2011-11-06 DOI: 10.2004/WJST.V7I2.34

M. Jaroensutasinee, P. Sangarun, Wittaya Pheera, K. Jaroensutasinee

{"title":"Tropical Montane Cloud Forest Characteristics in Southern Thailand","authors":"M. Jaroensutasinee, P. Sangarun, Wittaya Pheera, K. Jaroensutasinee","doi":"10.2004/WJST.V7I2.34","DOIUrl":"https://doi.org/10.2004/WJST.V7I2.34","url":null,"abstract":"The climatic, vegetation and soil characteristics of several tropical montane cloud forests in southern Thailand were investigated. Automatic weather stations were installed at three study sites: Mt. Nom cloud forest, Dadfa cloud forest and Mt. Nan Headquarters. HOBO U23 Pro V2 Temperature/Relative Humidity data loggers along the Mt. Nom elevational transect at five sites (500, 700, 900, 1,100 and 1,300 m) were installed for measuring air temperature and relative humidity. Soil samples along the Mt. Nom elevational transect at the same five sites were collected and soil pH, soil moisture and organic content were measured in the laboratory. Tree height, shrub width, leaf thickness, leaf area and epiphyte cover of every Lithocarpus bennettii (Miq.) Rehd. tree found along the Mt. Nom cloud forest elevational transect starting at 313 m and ending at 1,274 m were measured. Of the three sites, Mt. Nom cloud forest had the lowest air temperature, dew point, heat index, solar radiation, solar energy and UV index. Soil moisture and soil organic content increased with increasing elevation. The soil pH ranged from 3.6 to 4.3 which indicated that soil at Mt. Nom is high acidic.","PeriodicalId":38275,"journal":{"name":"Walailak Journal of Science and Technology","volume":"7 1","pages":"103-113"},"PeriodicalIF":0.0,"publicationDate":"2011-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68185436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

A Study on the Fatty Acid Profile and Conjugated Linoleic Acid (CLA) Content in Common Thai Indigenous Chickens Raised by Natural Farming in Nakhon Phanom Province 那空府天然养殖泰国普通土鸡脂肪酸谱及共轭亚油酸(CLA)含量研究

Walailak Journal of Science and Technology Pub Date : 2011-11-06 DOI: 10.2004/WJST.V7I2.41

T. Tathong, Santisook Worrawattanatam

引用次数: 0

Work ergonomic hazards for musculoskeletal pain among university office. 大学办公室肌肉骨骼疼痛的工作人体工程学危害。

Walailak Journal of Science and Technology Pub Date : 2011-11-06 DOI: 10.2004/WJST.V7I2.40

S. Chaiklieng, P. Suggaravetsiri, Y. Boonprakob

{"title":"Work ergonomic hazards for musculoskeletal pain among university office.","authors":"S. Chaiklieng, P. Suggaravetsiri, Y. Boonprakob","doi":"10.2004/WJST.V7I2.40","DOIUrl":"https://doi.org/10.2004/WJST.V7I2.40","url":null,"abstract":"This cross-sectional analytic study aimed to investigate ergonomic hazards in the workplace for musculoskeletal pain among university office workers. There were 142 full-time office staff from Khon Kaen University. Demographic characteristics and musculoskeletal pain were evaluated from a structured questionnaire. Ergonomic workstations, i.e. size of table, seat, work area and illuminations were measured at the workstations and anthropometric parameters were determined. Descriptive statistics were used for data analysis which were percentage, mean, and standard deviation. Inferential statistics were chi-square test and the student t-test at 95 % confidence interval. The results showed that 81.7 % of office workers were female, the mean age was 38.0 ± 10.0 years, the average work experience was 12.3 ± 10.8 years. One-month prevalence of musculoskeletal pain was 69.0 %. The onset of symptoms was during working hours and the majorly reported the cause as prolonged sitting in the same posture at work (73.3 %). From measurements, 55.8 % of all workstations had insufficient illumination being lower than the minimum standard requirement (400 lux). Most workstations (75.6 %) had significantly inappropriate height (above elbow height of workers) at p < 0.001. From questionnaires, the seat height was significantly associated with musculoskeletal pain ( p = 0.034). Moreover, anthropometric characteristics of musculoskeletal pain cases (i.e. buttock-popliteal length, hip breadth, sitting elbow height) were significantly different from healthy office workers ( p < 0.05). The findings suggest that ergonomic workstations need to be improved appropriately for individual workers and improvements in working conditions following standard requirements should be considered.","PeriodicalId":38275,"journal":{"name":"Walailak Journal of Science and Technology","volume":"7 1","pages":"169-173"},"PeriodicalIF":0.0,"publicationDate":"2011-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68185511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15