980 resultados para Culture -- study
Resumo:
In this paper the results of a study conducted on the culture-based fisheries in small (ranging from 2 to 160 ha), farmer-managed reservoirs in YenBai and ThaiNguyen Provinces in the northern highland region of Vietnam, for the production cycles of 1997/98, 98/99 and 99/00 are presented. The small reservoirs are leased to small farmers by the provincial authorities for fishery activities, and all lessees adopt culture-based fisheries when fingerlings of grass carp (Ctenopharyngodon idella), silver carp (Hypophthalmichthys molitrix), bighead carp (Aristichthys nobilis), common carp (Cyprinus carpio) and mrigal (Cirrihinus mrigala) are stocked between March and mid-April each year and harvested, using large seine nets, after approximately 11-12 months. The mean yields from reservoirs in YenBai and ThaiNguyen Provinces in 97/98, 98/99 and 99/00 production cycles were 251, 332 and 253, and 331, 372 and 210 kg ha<sup>−1</sup> respectively. There were major differences in the fish productivity in the reservoirs in the two Provinces, and in a reservoir between culture cycles. The stocking strategies appeared to be rather ad hoc, being determined by the availability of seed stock and the financial status of the lessees. Accordingly, there was no apparent consistent trend in the improvement of yields from the culture-based fishery practice throughout the growth cycles. The fish yields in reservoirs in each Province were significantly related to reservoir area (exponentially) and to mean weight of stocked fish and conductivity (logarithmically). Of the stocked fish, the highest returns were obtained with mrigal and bighead carp, which collectively contributed > 50% to the harvest. The return from common carp was the lowest. The mean growth rate of grass carp (2.7 g day<sup>−1</sup>), followed by bighead carp (2.0 g day<sup>−1</sup>) was the highest in reservoirs in YenBai Province, bighead carp (4.0 g day<sup>−1</sup>) followed by grass carp (3.2 g day<sup>−1</sup>) was the highest in ThaiNguyen Province. The seed stocked on average accounted for 65% and 48% of the total operating costs in YenBai and ThaiNguyen Provinces, and the mean cost:benefit ratio of the culture-based fishery in the two Provinces was 0.35 and 0.37 respectively. The culture-based fishery on average contributed about 28% to the gross income of a farmer lessee.<br />
Resumo:
<b>Purpose</b> – The purpose of this study is to examine the relationship between the cultural background of students and their learning approaches in a first year undergraduate accounting program.<br /><br /><b>Design/methodology/approach</b> – While prior research in this area has more generally focused on the investigation of the approaches to learning by accounting students, there appears to have been little investigation into the learning approaches of students from different cultures who are studying accounting together at the same institution. The paper presents the results of a study of 550 students enrolled in an undergraduate accounting program at a multi-campus university in Victoria, Australia, which used Biggs' study process questionnaire (SPQ) to assess the approaches to learning utilised by local and Chinese students.<br /><br /><b>Findings</b> – The results showed that, while there were no significant differences in the use of surface and deep learning strategies by the Chinese and Australian students, there were significant differences in the learning motives of the two groups. Furthermore, the results contradict prior claims that Asian students rely principally on the memorisation and reproduction of factual information as a means of achieving academic success.<br /><br /><b>Originality/value</b> – The study provides support for the notion that Chinese students may in fact have a culturally induced bias towards seeking understanding through deeper approaches to study. <br />
Resumo:
This paper addresses knowledge management (KM) in a project management organisation through a case study. The case study organisation is a small- edium sized Taiwanese-owned construction company (staff size of approximately 50) with an annual turnover of approximately TWD50 (AUD$1.85) billion. Approximately one half of the company comprised project-related staff (e.g. construction project management, project documentation, estimation, procurement, and design), while the other comprised administrative and business-related staff (e.g. office administration and management, business development, and finance and accounting). The researcher undertook a series of surveys and one-on-one interviews whilst ‘embedded’ for several months with the organisation. As part of a larger research project, this case study was one of four case studies conducted in major construction organisations in Singapore, Taiwan, and Australia. The study revealed the recognition, importance and commitment of organisational culture to KM, and the effects the knowledge management initiatives have on the organisation’s ability to manage knowledge across its projects and deliver the projects at various ‘levels’ of the organisation (individual, project, departmental, and corporate). It concludes that a technologically and functionally sound KM infrastructure does not necessarily assure an organisation with a capability to manage knowledge. Organisations need to ensure that the KM repository is made up of quality and relevant contents (not just quantity), and that corporate culture (especially the willingness of individuals to share what they know) is a critical determining factor to the organisation’s ability to share, apply and create knowledge (i.e. low sharing capability leads to low application and creation capabilities).<br />
Resumo:
This study investigates for two cultures differences in consumers’ purchase intention formation and their association with planned behaviour using the model of reasoned action. It also seeks evidence of exposure to a new dominant culture influencing change in behavioural intentions. Australian and Malaysian students are used as participants in the study. The results indicate that there is an association between intention and planned behaviour for Australian students, while no association exists for the Malaysian students. Additionally, the Malaysian students living in Australia for more than two years do not show a tendency to adopt the Australian students’ intention formation in an ‘individualistic’ culture.<br />
Resumo:
This paper addresses knowledge management (KM) in a project management organisation through a case study.<br /><br />The case study organisation is a small-medium sized Taiwanese-owned construction company (staff size of approximately 50) with an annual turnover of approximately TWD50 (AUD$1.85) billion. Approximately one half of the company comprised project-related staff (e.g. construction project management, project documentation, estimation, procurement, and design), while the other comprised administrative and business-related staff (e.g. office administration and management, business development, and finance and accounting).<br /><br />The researcher undertook a series of surveys and one-on-one interviews whilst ‘embedded’ for several months with the organisation. This study is part of an on-going international comparison involving major construction organisations in Singapore, Australia, and Taiwan.<br /><br />This study examines the recognition, importance and commitment of organisational culture to KM, and the effects the knowledge management initiatives have on the organisation’s ability to manage knowledge across its projects and deliver the projects at various ‘levels’ of the organisation (individual, project, departmental, and corporate).<br /><br />It concludes that a technologically and functionally sound KM infrastructure did not necessarily assure that an organisation had a capability to manage knowledge. Organisations need to ensure that their KM repository is made up of relevant and quality contents (not just quantity), and that corporate culture (especially the willingness of individuals to share what they know) is a critical determining factor to the organisation’s ability to share, apply and create knowledge (i.e. low sharing capability leads to low application and creation capabilities).<br />
Resumo:
In the context of an increasingly de-regulated industrial relations' environment, enterprise bargaining has been viewed by unions as an opportunity for organising and increasing membership at the grass roots level. This paper uses a case study approach detailing the process at one university where the National Tertiary Education Union (NTEU) utilised organising tactics of the type currently promoted by the Australian Council of Trade Unions (ACTU). The campaign is described and assessed relative to outcomes at other NTEU sites during the same round of bargaining. It is concluded, that, firstly, the tactics used at this site succeeded in producing greater membership growth and mobilisation than at comparable sites. Secondly, the tactics used are applicable to a university workforce including academic and general staff. Thirdly, industrial campaigning in enterprise bargaining does not by itself result in membership growth.<br />
Resumo:
The concentrations of 24 elements in the sediment and associated water column were monitored at two sites, one an area of intensive cage culture of carp, the other a wild site far from known cage culture areas, in Lake Kasumigaura, Japan, between September 1994 and September 1995. The concentrations of most elements in Lake Kasumigaura are mostly sub-parts per billion, except those for Ca, Fe, K, Mg, Na, P, and Si. The concentrations of Cd, Co, Cu, Mn, Ni, Pb, V, and Fe in Lake Kasumigaura are higher than the values in Lake Mashu, Lake Shikotsu, and Lake Biwa, and comparable to the levels in open ocean. Statistically significant differences in metal concentrations were observed between the culture and wild sites, with metal concentrations consistently higher at the culture site. Although cage culture of carp in the Lake Kasumigaura system may be causing localized increase in metal concentrations in the sediments, we must treat the results with caution, since the concentrations of metals observed in the sediments in 1995 were lower than those observed in 1979 for all metals at both sampling sites. In conclusion, further study of the concentrations of metals in the lake as a whole must be undertaken before the differences between the culture and wild sites can be proved, or disproved, to be the result of carp culture.<br />
Resumo:
There is expanding interest in the culture of the Australian shortfin eel <i>Anguilla australis</i> Richardson; however, there is a lack of fundamental biology and husbandry information necessary to further develop an industry within Australia. The present study was undertaken to gain a preliminary understanding of basic husbandry requirements for rearing of juvenile <i>A.</i> <i>australis</i> (glass eels and elvers) in tanks and earthen ponds. Newly caught glass eels were successfully acclimated to culture conditions. During tank culture trials, specific growth rates (SGR) and survival rates ranged from −2.1 to 2.8% day<sup>−1</sup> and 52% to 100% respectively. Glass eels weaned onto a commercial eel diet exhibited a significantly greater SGR and survival rate than those weaned onto a commercial trout diet. Glass eels weaned onto an eel diet over a 15-day period grew slightly faster than eels weaned over a 5-day period, but survival rates were not significantly different for each treatment. SGRs (up to 2.8% day<sup>−1</sup>) were significantly higher for glass eels fed at 9 and 12% day<sup>−1</sup> than at 6% day<sup>−1</sup>. Stocking densities between 2.5 kg m<sup>−3</sup> and 30 kg m<sup>−3</sup> did not influence either SGR or survival rates. SGRs were significantly higher for glass eels cultured at 25 °C than at lower temperatures. During pond culture trials, SGRs and survival rates ranged from 1.36 to 1.65% day<sup>−1</sup> and 39% to 77% respectively. The SGR and survival rates of juvenile eels stocked into ponds receiving supplementary feeding with a commercial eel diet were not significantly different to those of eels stocked into ponds that did not receive supplementary feeding.<br />
Resumo:
The applicability of the Western model of task and contextual performance to the context of Thai and Western managers, professionals and consultants working together in Thailand is addressed in this research. The results show a clear difference in the factor structure of how Western and Thai managers perceive the importance of performance factors. Moreover, the task and contextual factor structure found for Western managers working in a Western culture did not hold for Westerners working within the Thai cultural environment. These findings provide evidence of adaptation by the Westerner to the Thai cultural environment, supporting the notion of crossvergence.<br />
Resumo:
This study was carried out to investigate the possibility of using the limnological characteristics of non-perennial reservoirs in Sri Lanka for the future management of culture-based fisheries. Forty-five reservoirs were randomly selected to study their limnology, out of which 32 were stocked with fish fingerlings of Chinese and Indian carps, tilapia and freshwater prawn at stocking densities ranging from 218–4372 fingerlings ha−1. Of these, 23 reservoirs were harvested at the end of the culture period (6–10 months). Thirteen limnological parameters were measured during the water retention period of each of the 45 reservoirs between November 2001 and January 2004. The mean values of the limnological parameters were used to ordinate the reservoirs through principal component analysis. Ordination showed a productivity gradient among reservoirs where Secchi disc depth, total phosphorus, chlorophyll-a, inorganic turbidity and organic turbidity were identified as key factors. The total fish yield of culture-based fisheries was positively correlated to the scores of the first principal component axis. This study reveals that it is possible to classify non-perennial reservoirs in Sri Lanka based on the above limnological parameters in order to develop culture-based fisheries and that they could be applicable in comparable water bodies elsewhere in the tropics.<br /><br /><br />
Resumo:
The aim of this study was to check the suitability of some trophic models developed for temperate regions to classify the non-perennial reservoirs of Sri Lanka in order to manage culture-based fisheries of those reservoirs. A limnological study was carried out in 45 non-perennial reservoirs, which have been randomly selected for stocking of fish fingerlings for the development of culture-based fisheries. High total phosphorous (TP) content in relation to algal biomass indicates high non-algal turbidity in all reservoirs. Carlson's trophic state indices (TSI) measured on the basis of Secchi disc depth [TSI (SDD)], TP [TSI (TP)] and chlorophyll a [TSI (Chl-<i>a</i>)] show that the 45 reservoirs studied are characterized by TSI (TP) = TSI (SDD) > TSI (Chl-<i>a</i>), indicating that non-algal particulate matter or colour dominates underwater light attenuation. As TSI (Chl-<i>a</i>) is positively correlated to culture-based fisheries yield, it is useful for planning culture-based fisheries development strategies in non-perennial reservoirs of Sri Lanka, and has the potential to be used elsewhere in the tropics for comparable developments.<br />
Resumo:
In Sri Lanka, there is a great potential for the development of culture-based fisheries because of the availability of around 12 000 non-perennial reservoirs in the dry zone (<187 cm annual rainfall) of the island. These reservoirs fill during the north-east monsoonal period in October to December and almost completely dry up during August to October. As these non-perennial reservoirs are highly productive, hatchery-reared fish fingerlings can be stocked to develop culture-based fisheries during the water retention period of 7–9 months. The present study was conducted in 32 non-perennial reservoirs in five administrative districts in Sri Lanka. These reservoirs were stocked with fingerlings of Indian (catla <i>Catla catla</i> Hamilton and rohu <i>Labeo rohita</i> Hamilton) and Chinese (bighead carp <i>Aristichthys nobilis</i> Richardson) major carps, common carp Cyprinus carpio L., genetically improved farmed tilapia (GIFT) strain of Nile tilapia, <i>Oreochromis niloticus</i> (L.) and post-larvae of giant freshwater prawn, <i>Macrobrachium rosenbergii</i> De Man, at three different species combinations and overall stocking densities (SD) ranging from 218 to 3902 fingerlings ha<sup>−1</sup>, during the 2002–2003 culture cycle. Of the 32 reservoirs stocked, reliable data on harvest were obtained from 25 reservoirs. Fish yield ranged from 53 to 1801 kg ha<sup>−1</sup> and the yields of non-perennial reservoirs in southern region were significantly (<i>P </i>< 0.05) higher than those in the northern region. Naturally-recruited snakehead species contributed the catches in northern reservoirs. Fish yield was curvilinearly related to reservoir area (<i>P</i> < 0.05), and a negative second order relationship was evident between SD and yield (<i>P</i> < 0.05). Chlorophyll-a and fish yield exhibited a positive second order relationship (<i>P</i> < 0.01). Bighead carp yield impacted positively on the total yield (<i>P</i> < 0.05), whereas snakehead yield impact was negative. Bighead carp, common carp and rohu appear suitable for poly-culture in non-perennial reservoirs. GIFT strain<i> O. niloticus</i> had the lowest specific growth rate among stocked species and freshwater prawn had a low return.<br />
Resumo:
This study was conducted in 20 reservoirs, ranging in size from 4 to 30 ha, in the mountainous, northern region of Vietnam, in ThaiNguyen and YenBai provinces, over two growth cycles in 2002/03 and 2003/04. The reservoirs are leased by farmers for fishery activities from the provincial administration, and the trials were managed by the lessee farmers. Three species combinations in ratios (by fingerling weight) of grass carp: silver carp: bighead carp: common carp: mrigal 1:2:1:1:3 (A), 1:3:1:1:2 (B) and 1:2:1:1:2 (C) were used as seed stock. The overall mean yield of stocked fish in 2002/03 and 2003/04 growth cycles in reservoirs in ThaiNguyen and YenBai provinces was 165 (±21) and 190 (39), and 287 (±22) and 325 (±24) kg ha<sup>−1</sup> respectively. The yield in reservoirs in both provinces, in both growth cycles and irrespective of the species combinations, increased in relation to stocking density. In reservoirs in ThaiNguyen Province, the species combination B gave the lowest yield (both growth cycles and overall), and differed significantly (<i>P</i><0.05) from combinations A and C. The stocking efficiency (ratio of the yield of stocked fish in kg ha<sup>−1</sup> to the weight of the stocked fish in kg ha<sup>−1</sup>) in reservoirs in ThaiNguyen Province ranged from 2.9 to 5.1 over the two growth cycles and that in YenBai from 2.8 to 3.9. There was no discernible trend between growth cycles and/or between species combinations. The major cost incurred was for fingerling procurement. In all instances, a net profit was accrued. The mean (±standard error (SE)) net profit ha<sup>−1</sup> (in 103VN dong; approximately 15 500 VND=1 US$) was 885 (±270) and 864 (±214), and 1322 (±176) and 1600 (±150) for the growth cycles 2002/03 and 2003/04 for reservoirs in ThaiNguyen and YenBai provinces respectively. Between the two growth cycles, the net profit increased in eight and three reservoirs from YenBai and ThaiNguyen, respectively, the maximum increase being recorded in Khuan Gio (165%) and Dong Man (39%) reservoirs.<br />
