conclusions flushing dental unit waterlines are an effective measure in reducing the number of bacterial contaminants. results bacterial contamination was found in all 24 units at the beginning of daily activity with a mean colony count of 17850. the number of colonies decreased to 3250 following 30 seconds of flushing in 16 units and later to 1837 after flushing for two minutes in 13 units. in...

aims: the internal unit and icu of hospitals are a suitable environment for growing of bacteria such as staphylococcus epidermidis, pseudomonas and acinetobacters. the aim of this study was to evaluate the efficacy of using disinfectants on bacterial remove in isfahan city, iran, hospitals. instrument & methods: this descriptive study was performed in isfahan city, iran, hospitals in 2015. 200 ...

objective: suicide is one of the most important early causes of death in psychotic patients. the main object of this research was to determine the relationship between positive and negative symptoms of schizophrenia and psychotic major depressive disorder (mdd) with suicidal history and risk. methods: sixty five patients with schizophrenia compared to 65 patients with psychotic mdd in a cross s...

background: the immunomagnetic separation technique is the basis of monocyte isolation and further generation of monocyte-derived dendritic cells. objective: to compare the efficiency of monocyte positive and negative separation, concentration of beads, and their impact on generated dendritic cells. methods: monocytes were obtained using monoclonal antibody-coated magnetic beads followed the fi...

This study examined the dispositional optimism and entrepreneurial intent of undergraduate American and Canadian entrepreneurship students. It was found that American entrepreneurship students had lower levels of dispositional optimism (one’s positive expectation for the future), a defining characteristic of successful entrepreneurs, when compared to Canadian entrepreneurship students. Moreover...

Do optimistic expectations facilitate or hinder adaptive responses to relationship challenges? Traditionally, optimism has been characterized as a resource that encourages positive coping efforts within relationships. Yet, some work suggests optimism can be a liability, as expecting the best may prevent individuals from taking proactive steps when confronted with difficulties. To reconcile thes...

Background: The immunomagnetic separation technique is the basis of monocyte isolation and further generation of monocyte-derived dendritic cells. Objective: To compare the efficiency of monocyte positive and negative separation, concentration of beads, and their impact on generated dendritic cells. Methods: Monocytes were obtained using monoclonal antibody-coated magnetic beads followed the Fi...

Body image is an internal representation of the external appearance which includes physical and perceptual aspects and attitudes toward them. Body image anxiety can cause weight problems. In addition, perfectionism, the trend or effort to be perfect and flawless can cause extreme thinking and self-criticism. Perfectionism can provoke anxiety and concerns for body image and weight, especially in...