this paper proposes a stochastic framework for demand response (dr) aggregator to procure dr from customers and sell it to purchasers in the wholesale electricity market. the aggregator assigns fixed dr contracts with customers based on three different load reduction strategies. in the presented problem the uncertainty of market price is considered and the risk of aggregator participation is ma...

objective(s):the utilization of molecular techniques in the epidemiology of tuberculosis have provided an opportunity for using effective markers to trace the transmission of the disease .the purpose of this study was to compare the genetic patterns of mycobacterium tuberculosis by three methods of rflp technique. materials and methods: in a cross-sectional and prospective study, 95 strains of ...

BACKGROUND Cytomegalovirus (CMV) is a prevalent infection in humans. Recent studies have shown the role of CMV infection in male infertility disorder. AIM Here we aimed to study the role of CMV infection in men with idiopathic infertility. MATERIALS AND METHODS We performed a case-control study of CMV serology in 200 patients attending male infertility clinic of a university hospital. There...

The war lingers on, and despite assurances to the contrary from the Nixon Administration, there appear to be few hopes for lasting peace. Precipitous technological advances during the last generation have left the world on the brink of devastation. Geological studies record " many examples of species that have failed to survive because of inadaptability to environmental change, but only Homo Sa...

China is a key area for research into human occupation in the Old World after the initial expansion of early humans out of Africa. Reliable age determinations are pivotal for assessing the patterns of human evolution and dispersal in this region. This paper reviews magnetostratigraphic studies of some early Pleistocene strata bearing hominin remains and/or artifact stone tools from northern to ...

After publication of the article by Gücü et al. [1], it was found that Dr Onder Bozkurt had been inadvertently omitted from the author list. The author list has therefore been amended accordingly. The authors apologise for any inconvenience this may cause. which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The Creative Com...

lives and visits are often infrequent. To this extent, therefore, I see the community hospital in populations in excess of 40 000 being of primary significance to the community in respect of acute diagnostic and surgical services at an appropriate level, and the geriatric and long-stay element as a part of the overall picture rather than the predominant feature. In populations less than this fi...

Dr. Zitha Mokomane is a Senior Research Specialist in the Population Health, Health Systems and Innovation research programme at the Human Sciences Research Council in South Africa. She holds a MA and a PhD (Family Demography), both from the Australian National University. Before joining the Human Science Research Council, Dr Mokomane was a Senior Lecturer in the Department of Population Studie...

Migraine and epilepsy are among the most common neurological diseases, share several characteristics, including specific clinical features, overlapping pathophysiological mechanisms, and treatment. It seems these two conditions have bidirectional relation and the presence of one disorder increases the probability of other. Current study was performed as a descriptive cross-sectional survey to e...