We all remember the empty faces of students seated in rows, intermittently taking notes, and trying to retain disjointed facts. This old lecture style seems as antiquated as a 19th century clockwork mechanism; familiar and charming, but erratic and no longer adequate. The orderly structure of industrial age mechanisms and the repetitiveness of the assembly line are giving way to the all-at-once...

The development of technology coupled with the idea of global village is driving a trend that is advancing development of under developed nations through transfer of technology. To date, the transfer has mostly been in the form of finished products such as equipment being sold to developing nations. The designs for the pieces of equipment were initially inspired by technological needs in temper...

The effects of rat CINC/gro, a member of the interleukin-8 family, on the endothelium-neutrophil interaction and transendothelial macromolecular leakage were studied in rat mesenteric microcirculation. Thirty minutes after superfusion with 10 nM CINC/gro, the number of neutrophils adherent to the venular endothelium and those migrated across the venules were significantly increased with a conco...

PURPOSE The aims of the study were to detect early changes in the optic nerve function of patients with Graves' orbitopathy (GrO) who do not have any signs and symptoms of optic neuropathy, using pattern visual evoked potentials (P-VEP), and investigate any possible relation between the disease activity and P-VEP P100 latencies of the patient group. METHODS The study was conducted in a tertia...

The immune system plays an important role in the development of leukemia. CXC chemokines, as the molecular members of this system, are involved in the immune responses. Therefore, this study was designed to examine and compare the levels of CXCL1 (Gro-α), CXCL10 (IP-10) and CXCL12 (SDF-1) in ALL patients prior to and post bone marrow transplantation (BMT). In this experimental study, samples we...

The sterile insect technique (SIT) is widely used in integrated programs against tephritid fruit flies, particularly the Mediterranean fruit fly, Ceratitis capitata Wiedemann (Diptera: Tephritidae). Unfortunately, the mass-rearing procedures inherent to the SIT often lead to a reduction in the male mating competitiveness. One potential solution involves the prerelease exposure of males to parti...

We consider the evolutionary state of the black–hole X–ray source GRO J1655–40 in the context of its transient nature. Recent optical observations show that the donor in GRO J1655–40 is an intermediate–mass star (≃ 2.3M⊙) crossing the Hertzsprung gap. Usually in such systems the donor’s radius expansion drives a near-Eddington or super–Eddington mass transfer rate which would sustain a persiste...

Cyber security is an important aspect of National Security and the safekeeping of a Nation's constituency and resources. In South Africa, the focus on cyber security is especially prominent since many geographical regions are incorporated into the global village in an attempt to bridge the digital divide. This article reflects on current research and implementation done in South Africa with reg...

BACKGROUND Altered Na+ channel expression, enhanced excitability, and spontaneous activity occur in nerve-injury and inflammatory models of pathological pain, through poorly understood mechanisms. The cytokine GRO/KC (growth related oncogene; CXCL1) shows strong, rapid upregulation in dorsal root ganglion in both nerve injury and inflammatory models. Neurons and glia express its receptor (CXCR2...

The advent of various wireless technologies have revolutionized the communication infrastructure and consequently changed the entire world into a global village. Use of wireless technology has also been made for transmission of electric power wirelessly. It increases the portability of power systems and integrates the communication technologies and electric power to the same platform. This pape...