We introduce a notion of pre-alternative algebra which may be seen as an alternative algebra whose product can be decomposed into two pieces which are compatible in a certain way. It is also the “alternative” analogue of a dendriform dialgebra or a pre-Lie algebra. The left and right multiplication operators of a pre-alternative algebra give a bimodule structure of the associated alternative al...

background: type 2 diabetes is an important risk factor for cognitive decline in diabetic patients. the main goal of this study was the assessment of memory, attention and visuospatial ability dysfunctions in patients with type 2 diabetes in comparison to pre-diabetic patients and normal subjects in endocrine and metabolism center of isfahan city from april 2011 to july 2011. methods: the sampl...

objective : this study aims to describe the blood pressure profile of newborns of preeclampsia mothers in vali-e-asr hospital during 2003-2004. materials and methods : in this cross-sectional descriptive analytical study 200 mothers and their newborns were studied. blood pressure of all newborns was checked by oscillometric method on the first day after birth and recorded in a questionnaire alo...

preventive maintenance scheduling of generating units is addressed as a long-term scheduling in power system studies aiming to increase the reliability incorporating cost reduction. it consists of knowing which generating units should be shut down for regular safety inspection. in this paper, a new formulation of preventive maintenance scheduling associated with cost reduction index (cri) is pr...

sybil attacks pose a serious threat for wireless sensor networks (wsn) security. they can create problems in routing, voting schemes, decision making, distributed storage and sensor re-programming. in a sybil attack,the attacker masquerades as multiple sensor identities, that are actually controlled by one or a few existing attacker nodes. sybil identities are fabricated out of stolen keys, obt...

background: work environment dictates physical, social and mental tensions each of which affect the staff’s health. likewise, pre-hospital emergency care staff, due to the special nature of their job, are exposed to the tensions of emergency situations which can affect their health. therefore, this study was conducted to scrutinize the relationship between the job burnout and mental health in p...

most highly pathogenic avian influenza viruses (aiv) emerge after field passage of non-pathogenic aivs in birds. the outbreak of low-pathogenic h7n1 avian influenza virus in italy during 1999-2000 followed by outbreak of highly pathogenic h7n1 avian influenza virus is one example in this regard. this experiment has been designed to investigate the effect of pre-infection of birds with lpai on s...

task graph scheduling is a multi-objective optimization and np-hard problem. in this paper a new algorithm on homogeneous multiprocessors systems is proposed. basically, scheduling algorithms are targeted to balance the two parameters of time and energy consumption. these two parameters are up to a certain limit in contrast with each other and improvement of one causes reduction in the other on...

ba ck g r oun d & aim: spiritual care is an integral part of a holistic nursing care. providing spiritual care has a positive impact on patients’ health outcomes. although nurses understand the importance of incorporating  patient’s  spiritual  beliefs  into the care practice,  understanding  their  spirituality before addressing the spirituality of patients is also important. therefore, the ai...