Since the late 1980s an increasing level of interest has been shown in ethnographic approaches, derived from sociology and social anthropology, as promising means to provide some assistance in the complex and delicate problem of systems design. Such methods, a “turn to the social” within system design, are central to attempts to develop a new perspective upon the design of technology. Ethnograp...

Murine cytotoxic thymus-derived lymphocytes immunized against cells bearing foreign minor histocompatibility antigens are specific for the immunizing minor antigens and for their own major H-2 antigens; they do not lyse target cells that bear the correct minor antigens plus a different H-2 haplotype. These are referred to as "altered-self" or "self-plus-X" killer cells. Alloreactive killer cell...

Communication systems check integrity to protect information against alteration introduced by natural means such as noise and by malicious security attacks. This paper proposes that some integrity checks used for security should also be used for error control, since there are similarities between the functions used for both purposes, and repeated checking can have a high cost. The paper extensi...

Introduction: Many molecules can be labeled by iodine. Some of labeled substances are used for investigations of cancer treatment, biodistribution study in body, receptor binding, secrete pathway etc. Peptides are biomolecules and can be labeled by 131Iodine. ICD- 85 is a tri-peptide derived from Iranian brown snake venom and scorpion venom. This tri-peptide treats cancer by i...

War on terrorism, as the motto which formed the cornerstone of global policies of former     neo-conservative administration of the United States, is increasingly becoming ineffective in Afghanistan with the dreaded consequence of spilling over into Pakistan. This inevitable consequence of War on    Terrorism in Afghanistan has brought the West face to face with the ‘nest of terrorism’ that CIA...