497 resultados para 1212


Relevância:

10.00% 10.00%

Publicador:

Relevância:

10.00% 10.00%

Publicador:

Relevância:

10.00% 10.00%

Publicador:

Resumo:

The Global River Discharge (RivDIS) data set contains monthly discharge measurements for 1018 stations located throughout the world. The period of record varies widely from station to station, with a mean of 21.5 years. These data were digitized from published UNESCO archives by Charles Voromarty, Balaze Fekete, and B.A. Tucker of the Complex Systems Research Center (CSRC) at the University of New Hampshire. River discharge is typically measured through the use of a rating curve that relates local water level height to discharge. This rating curve is used to estimate discharge from the observed water level. The rating curves are periodically rechecked and recalibrated through on-site measurement of discharge and river stage.

Relevância:

10.00% 10.00%

Publicador:

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Outward foreign direct investment (FDI) from developing countries is increasing. In the research on FDI, it has been considered that only competitive and productive firms can invest in foreign countries. However, since the differences in competitiveness and productivity between multinational enterprises (MNEs) from developed and developing countries have not been explicitly investigated, we cannot say whether MNEs from developing countries can or cannot survive in competition with MNEs from developed countries as well as against competitive and productive indigenous firms in host countries. To examine the activities of MNEs from developing countries, this study investigates Chinese firms in South Africa. It reveals that in order to compensate for the weak brand recognition of Chinese products and to expand sales, Chinese firms have mainly been making products that are sold under the brand names of indigenous South African firms. Chinese firms have expanded their business in South Africa relying on the business resources of indigenous firms in the host country. This indicates that business with indigenous firms is significant for MNEs from developing countries in boosting competitiveness.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Advanced wheat lines carrying the Hessian fly resistance gene H27 were obtained by backcrossing the wheat/Aegilops ventricosa introgression line, H-93-33, to commercial wheat cultivars as recurrent parents. The Acph-N v 1 marker linked to the gene H27 on the 4Nv chromosome of this line was used for marker assisted selection. Advanced lines were evaluated for Hessian fly resistance in field and growth chamber tests, and for other agronomic traits during several crop seasons at different localities of Spain. The hessian fly resistance levels of lines carrying the 4Nv chromosome introgression (4D/4Nv substitution and recombination lines that previously were classified by in situ hybridisation) were high, but always lower than that of their Ae. ventricosa progenitor. Introgression lines had higher grain yields in infested field trials than those without the 4Nv chromosome and their susceptible parents, but lower grain yields under high yield potential conditions. The 4Nv introgression was also associated with later heading, and lower tiller and grain numbers/m2 . In addition, it was associated with longer and more lax spikes, and higher values of grain weight and grain protein content. However, the glutenin and gliadin expression, as well as the bread-making performance, were similar to those of their recurrent parents