an involution or anti-involution is a self-inverse linear mapping. in this paper, we will present two real quaternion matrices, one corresponding to a real quaternion involution and one corresponding to a real quaternion anti-involution. moreover, properties and geometrical meanings of these matrices will be given as reflections in r^3.

the increasing incidence of systemic candidiasis, which parallels the use of invasive and immunosuppressive medical procedures, necessitates development of rapid and cost effective tests for diagnosis of systemic candidiasis. therefore in this study 85 mice were first immunosuppressed by cyclophosphamide and then infected by candida albicans ncpf 3153. other 85 mice were employed as control. th...

studies have shown that patients who do not produce donor specific and / or panel reactive anti-hla antibodies have a longer graft survival. the purpose of this study was to evaluate the posttransplant humoral immune response towards hla-class i antigens and the measurement of the serum creatinine levels which are used in monitoring posttransplant function of kidney. serum samples from 132 rena...

objective(s) in recent years highly selective cox-2inhibitors were withdrawn from the market because of an increased risk of cardiovascular complications. in this study we were looking for potent compounds with moderate selectivity for cox-2. so, four analogues of 4, 5-diaryl-2-(2-alkylthio-5-imidazolyl) imidazole derivatives were synthesized and their anti-inflammatory and anti-nociceptive act...

rheumatoid arthritis is a chronic inflammatory disease characterized by the sequestration of various leukocyte subpopulations within both the developing pannus and synovial space. this study was undertaken to examine the therapeutic potency of tindurin in experimental rheumatoid arthritis. collagen-induced arthritis (cia) was induced by intradermally immunization of lewis rats at the base of th...

heparin is frequently used in different clinical settings to reduce the coagulating ability of the blood. because of probable adverse effects owing to heparin therapy and regarding variability of patients’ responses to heparin, which make it very unreliable, it seems prudent to monitor meticulously its effects on the human body. there are a lot of laboratory tests to watch its effects on the bo...

angiogenesis which is the recruitment of new blood vessels is a critical process in several chronic diseases and is an essential component of tumor or cancer progression. development of therapies aimed at inhibiting the angiogenesis, in combination with classical anti-cancer therapies, is among the most intensively studied approaches to treat the cancer. in this study the effect of chlordiazepo...

neuroinflammation is inflammation of the nervous tissue. it be initiated in response to infection, toxic metabolites, auto immunity, traumatic brain injury and variety of causes. exercise is a promising mechanism of prevention and treatment for disease characterized by neuroinflammation. the benefits of exercise and physical activity (pa) are well known and have effects on function of the centr...

background: infection is now the most common cause of morbidity in systemic lupus erythematosus (sle). there is lack of information regarding the specific antibody forma-tion in response to vaccines in young sle patients. objective: to determine the efficacy of anti-tetanus antibody response in young patients with sle. methods: forty sle pa-tients with mean age of 14.1 years (range: 7-21) and 6...