We present time resolved optical data acquired by the TAROT automated observatory on the afterglow of GRB 050525a from 6 to 136 min after the GRB. We find evidence for a rapid re-brightening of 0.65 mag of the afterglow at ∼33 min after the GRB. The decay slope α is 1.14 ± 0.07 in the first part and is 1.23 ± 0.27 after the re-brightening event. The afterglow of GRB 050525a is the third known a...

The diplomatic ties between Africa and Southeast Asia (SEA) have historically been sporadic and erratic. The only country in the SEA that the first decades after independence maintained a relatively narrower link to some African countries was Indonesia, because of political and ideological reasons. Today, trade has gained momentum, being South Africa, Egypt and Nigeria, the largest trading part...

Groundwater is one of the most important water resources especially for irrigation in the east of Iran. So, it is important to note its water quality variation for deciding to manage it. To this end, the study were done to zone Birjand plain located at latitude between 32˚ 30’-33˚ 00’ N and longitude between 58˚ 45’-59˚ 41’ E. In order to achieve this goal, the required layers, Sodium adsorptio...

the kashan erg is one of the most important sand dune complexes in iran. being affected by wind erosion, theerg's borderlands face numerous problems as a result of sand movement. to evaluate the risk of sands moving intoresidential areas near the kashan erg, anemometry data from synoptic stations located in kashan, ardestan, meimeh,naeen, and qom were collected and analyzed to calculate the san...

An address is a common reference for a multitude of information. In South Africa, multiple address datasets are developed and maintained by various public and private organizations with little or no cooperation on data sharing. We identified motivators and barriers for address data sharing in South Africa through case studies of three typical organizations, which prepare, distribute and use add...

The approval in July 2001 by the Organisation of African Unity (OAU) of the “New African Initiative” and a commitment soon afterwards by the world’s richest countries (G8) to launch a detailed development plan for Africa over the next year, can justly be regarded as a major boost for South African President Thabo Mbeki’s vision of an “African Renaissance” as the cornerstone for an “African Cent...