• Title/Summary/Keyword: Tropical Distribution

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Purchase Intention of Certified Coffee: Evidence from Thailand

  • UT-THA, Veenarat;LEE, Pai-Po;CHUNG, Rebecca H.
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.8
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    • pp.583-592
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    • 2021
  • This study examines social identity and self-identity as the antecedents of the theory of planned behavior (TPB) model in predicting purchase intention of certified coffee, whereas perceived trustworthiness (PT) is evaluated whether it directly affects intention and/or indirectly through attitude. In addition, ethics and luxury are investigated as the salient beliefs affecting attitude formation in this regard. A face-to-face survey was conducted with 727 coffee consumers in Thailand. Confirmatory factor analysis is applied to assess the adequacy of the model, followed by structural equation modeling to evaluate the hypotheses proposed for the relationships between constructs in an extended TPB model. The results confirm that self-identity is the most influential antecedent on attitude when compared to social identity, and attitude, in turn, is the strongest determinant in predicting purchase intention. PT has a direct positive effect on purchase intention, meanwhile, ethical, luxury beliefs, and PT are confirmed to portrait the attitude formation. As such the marketing campaigns can address manipulating consumers' beliefs on both ethical and luxury aspects as well as PT, along with consumers' social identity and self-identity to fortify a positive attitude toward certified coffee. Then the actual purchase behavior can be foreseen based on empirical evidence.

Distribution of Polychaetous Annelid Worms from Ulnung-do Coast (울릉도 연안의 갯지렁이류 분포)

  • PAIK Eui-In
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.19 no.4
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    • pp.363-367
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    • 1986
  • Distributional patterns of Ulnung-do's Polychaetous annelid worms comprising 64 species out of 53 genera were divided into four zoogeographical groups with reference to the distribution of the world's polychaetous annelid worms; cosmopolitan, northern, temperate and tropical types. It was found out that there were 25 species of cosmopolitan type taking up $39\%$, 20 species of northern type, $31\%$, and 19 species of temperate type, $30\%$, but tropical type was not found. When compared with the polychaetous annelid worms of the neighboring coastal areas of the Yellow Sea, the east coast of U.S.S.R., Korea and Japan, those of Ulnung-do island were shown to have highest similarity to those of Yellow Sea follwed by the areas in the order named.

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Surveillance of Chigger Mite Vectors for Tsutsugamushi Disease in the Hwaseong Area, Gyeonggi-do, Republic of Korea, 2015

  • Bahk, Young Yil;Jun, Hojong;Park, Seo Hye;Jung, Haneul;Jegal, Seung;Kim-Jeon, Myung-Deok;Roh, Jong Yul;Lee, Wook-Gyo;Ahn, Seong Kyu;Lee, Jinyoung;Joo, Kwangsig;Gong, Young Woo;Kwon, Mun Ju;Kim, Tong-Soo
    • Parasites, Hosts and Diseases
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    • v.58 no.3
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    • pp.301-308
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    • 2020
  • Owing to global climate change, the global resurgence of vector-borne infectious diseases and their potential to inflict widespread casualties among human populations has emerged as a pivotal burden on public health systems. Tsutsugamushi disease (scrub typhus) in the Republic of Korea is steadily increasing and was designated as a legal communicable disease in 1994. The disease is a mite-borne acute febrile disease most commonly contracted from October to December. In this study, we tried to determine the prevalence of tsutsugamushi disease transmitted by chigger mites living on rodents and investigated their target vector diversity, abundance, and distribution to enable the mapping of hotspots for this disease in 2015. A total of 5 species belonging to 4 genera (109 mites): Leptotrombidium scutellare 60.6%, L. pallidum 28.4% Neotrombicula tamiyai 9.2%, Euschoengastia koreaensis/0.9%), and Neoschoengastia asakawa 0.9% were collected using chigger mite collecting traps mimicking human skin odor and sticky chigger traps from April to November 2015. Chigger mites causing tsutsugamushi disease in wild rodents were also collected in Hwaseong for the zoonotic surveillance of the vector. A total of 77 rodents belonging to 3 genera: Apodemus agrarius (93.5%), Crocidura lasiura (5.2%), and Micromys minutus (1.3%) were collected in April, October, and November 2015. The most common mite was L. pallidum (46.9%), followed by L. scutellare (18.6%), and L. orientale (18.0%). However, any of the chigger mite pools collected from rodent hosts was tested positive for Orientia tsutsugamushi, the pathogen of tsutsugamushi disease, in this survey.

Molecular diversity and morphology of the genus Actinotrichia (Galaxauraceae, Rhodophyta) from the western Pacific, with a new record of A. robusta in the Andaman Sea

  • Wiriyadamrikul, Jutarat;Lewmanomont, Khanjanapaj;Boo, Sung Min
    • ALGAE
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    • v.28 no.1
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    • pp.53-62
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    • 2013
  • Actinotrichia is a calcified galaxauracean red algal genus with temperate and tropical distributions in the Indian and Pacific Oceans. Morphological characteristics, along with rbcL and cox1 sequences, were analyzed from specimens collected in the western Pacific and the Indian Oceans. Both rbcL and cox1 data confirmed the occurrence of A. fragilis, A. robusta, and Actinotrichia sp. in this region. The presence of A. fragilis was verified in tropical Indo-Pacific and temperate northeast Asian waters and was characterized by high genetic diversity. Although A. robusta commonly occurs in the East China Sea, we confirmed its presence on rocks and crustose algae in the subtidal zone of three islands in the Andaman Sea. Actinotrichia sp. was similar to A. calcea in morphology and distribution, but with sufficiently different sequences, thus, additional sampling over the range will enable a more realistic evaluation of its taxonomic status.

Distribution of Tropical Tropospheric Ozone Determined by the Scan-Angle Method applied to TOMS Measurements

  • Kim, Jae-H.;Na, Sun-Mi;Newchurch, M. J.;Emmons, L.
    • Proceedings of the KSRS Conference
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    • 2002.10a
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    • pp.7-11
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    • 2002
  • This study introduces the first method that determines tropospheric ozone column directly from a space-based instrument. This method is based on the physical differences in the Total Ozone Mapping Spectrometer (TOMS) measurement as a function of its scan-angle geometry. Tropospheric ozone in September-October exhibits a broad enhancement over South America, the southern Atlantic Ocean, and western South Africa and a minimum over the central Pacific Ocean. Tropical tropospheric ozone south of the equator is higher than north of the equator in September-October, the southern burning season. Conversely, ozone north of the equator is higher in March, the northern burning season. Overall, the ozone over the southern tropics during September-October is significantly higher than over the northern tropics. Abnormally high tropospheric ozone occurs over the western Pacific Ocean during the El Nino season when the ozone amounts are as high as the ozone over the Africa.

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Togoperla thinhi, a new stonefly from central Vietnam (Plecoptera: Perlidae)

  • Cao, Thi Kim Thu;Bae, Yeon-Jae
    • Animal cells and systems
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    • v.14 no.3
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    • pp.221-224
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    • 2010
  • A new and rare perlid stonefly, Togoperla thinhi n. sp., is described from male and female adults and egg specimens from tropical central Vietnam. The male adult of T. thinhi n. sp. can be distinguished from other congeners by the distinct head markings, bilobed processes on the posterior margin of the abdominal tergum V, and S-shaped aedeagus. The female adult has a long and tongue-shaped subgenital plate on the abdominal sternum VIII, which extends to the posterior margin of the abdominal sternum IX. A male key to the Vietnamese species of Togoperla is provided. The finding of this new species provides evidence of an extension of the geographical distribution of Togoperla to tropical mainland Southeast Asia.

Moisture distribution in concrete subjected to rain induced wetting-drying

  • Sarkar, Kaustav;Bhattacharjee, Bishwajit
    • Computers and Concrete
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    • v.14 no.6
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    • pp.635-656
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    • 2014
  • A rational estimation of moisture distribution in structural concrete is vital for predicting the possible extent and rate of progression of impending degradation processes. The paper proposes a numerical scheme for analysing the evolution of moisture distribution in concrete subjected to wetting-drying exposure caused by intermittent periods of rainfall. The proposed paradigm is based on the stage wise implementation of non-linear finite element (FE) analysis, with each stage representing a distinct phase of a typical wet-dry cycle. The associated boundary conditions have been constituted to realize the influence of various meteorological elements such as rain, wind, relative humidity and temperature on the exposed concrete surface. The reliability of the developed scheme has been demonstrated through its application for the simulation of experimentally recorded moisture profiles reported in published literature. A sensitivity analysis has also been carried out to study the influence of critical material properties on simulated results. The proposed scheme is vital to the service life modelling of concrete structures in tropical climates which largely remain exposed to the action of alternating rains.

Monitoring of Noxious Protozoa for Management of Natural Water Resources

  • Bahk, Young Yil;Cho, Pyo Yun;Ahn, Sung Kyu;Park, Sangjung;Jheong, Won Hwa;Park, Yun-Kyu;Shin, Ho-Joon;Lee, Sang-Seob;Rhee, Okjae;Kim, Tong-Soo
    • Parasites, Hosts and Diseases
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    • v.56 no.2
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    • pp.205-210
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    • 2018
  • Waterborne parasitic protozoa, particularly Giardia lamblia and Cryptosporidium spp., are common causes of diarrhea and gastroenteritis worldwide. The most frequently identified source of infestation is water, and exposure involves either drinking water or recreation in swimming pools or natural bodies of water. In practice, studies on Cryptosporidium oocysts and Giardia cysts in surface water are challenging owing to the low concentrations of these microorganisms because of dilution. In this study, a 3-year monitoring of Cryptosporidium parvum, Giardia lamblia, and Naegleria fowleri was conducted from August 2014 to June 2016 at 5 surface water sites including 2 lakes, 1 river, and 2 water intake plants. A total of 50 water samples of 40 L were examined. Cryptosporidium oocysts were detected in 22% of samples and Giardia cysts in 32%. Water at the 5 sampling sites was all contaminated with Cryptosporidium oocysts (0-36/L), Giardia cysts (0-39/L), or both. The geometric mean concentrations of Cryptosporidium and Giardia were 1.14 oocysts/L and 4.62 cysts/L, respectively. Thus, effective monitoring plans must take into account the spatial and temporal parameters of contamination because they affect the prevalence and distribution of these protozoan cysts in local water resources.

GROWTH AND FODDER YIELD OF THE Gliricidia sepium PROVENANCES IN ALLEY CROPPING SYSTEM IN DRYLAND FARMING AREA IN BALI, INDONESIA

  • Sukanten, I.W.;Nitis, I.M.;Lana, K.;Suarna, M.;Uchida, S.
    • Asian-Australasian Journal of Animal Sciences
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    • v.8 no.2
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    • pp.195-200
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    • 1995
  • The design of this field experiment was a completely randomized block arrangement, consisted of 16 treatments (Gliricidia sepium provenances) and 6 blocks as replications with 12 plants per provenance. Of the 16 gliricidia provenances, six were from Mexico (M), four were from Guatemala (G), and one each was from Colombia (C), Indonesia (I), Nicaragua (N), panama (P), Costa Rica (R), and Venezuela (V). After 12 months establishment the gliricidia were lopped regularly 4 times a year, twice during the 4 months wet season and twice during the 8 months dry season at 150 cm height. There was variation (p < 0.05) in stem elongation from 22 to 80 cm, leaf retained from 118 to 209%, branch number from 13 to 24, fodder yield from 1,015 to 1,671 g DW/plant and wood yield from 792 to 1,662 g DW/plant among the provenances; and such variations were affected by the seasons. Belen (N14), Retalhuleu (G14) and Bukit Bali (I) provenances were ranked first, second and third, respectively, measured in terms of leaf retention, stem elongation, fodder and wood yields during the wet and dry seasons.

Subtype Distribution of Blastocystis in Communities along the Chao Phraya River, Thailand

  • Palasuwan, Attakorn;Palasuwan, Duangdao;Mahittikorn, Aongart;Chiabchalard, Rachatawan;Combes, Valery;Popruk, Supaluk
    • Parasites, Hosts and Diseases
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    • v.54 no.4
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    • pp.455-460
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    • 2016
  • Blastocystis is a common zoonotic enteric protozoan that has been classified into 17 distinct subtypes (STs). A cross-sectional study was conducted to determine the prevalence and subtype distributions of Blastocystis in villagers living along the Chao Phraya River, Ayutthaya Province, Thailand, and to assess the risk of zoonotic infection. In total, 220 stool samples were collected, and DNA was extracted. PCR and sequencing were performed with primers targeting the small-subunit ribosomal RNA (SSU rRNA) genes. Blastocystis was present in 5.9% (13/220) of samples, and ST3 (5.0%; 11/220) was the predominant subtype, followed by ST2 (0.45%; 1/220) and ST6 (0.45%; 1/220). Phylogenetic trees were constructed with the maximum-likelihood method based on the Hasegawa-Kishino-Yano + G + I model, neighbor-joining, and maximum parsimony methods. The percentage of bootstrapped trees in which the associated taxa clustered together was relatively high. All the sequences of the Blastocystis-positive samples (KU051524-KU051536) were closely related to those from animals (pig, cattle, and chicken), indicating a zoonotic risk. Therefore, the villagers require proper health education, especially regarding the prevention of parasitic infection, to improve their personal hygiene and community health. Further studies are required to investigate the Blastocystis STs in the animals living in these villages.