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The sleep is one of the important phenomen in biological rhythm. Sleep function are usually characterized as being physical and emotional protective and restorative. On the average people spend a third of their life in sleep, and people up to 30% of population suffer from sleep disorders. Sleep disorders are major psychiatric problems. This is a descriptive survey for studying sleep disorders (Insomnia, excessive somnolence, functional disorders) among nurses working at hospitals affiliated with Shahid Beheshti’s Medical Sciences University in this study 751 nurses aged between 20-45 years have participated by data collection using questionnaire and analysis by tests, the results indicated, the most of sleep disorders in insomnia (Initiating sleep 55.8%, maintaining sleep 72.4%, early awakefulness 52.7%, excessive somnolence 65.5% and parasomnia 26.9%). In additional, there has been significant correlation between the demographic factors such as age, sex, marriage, shiftwork, with sleep disorders. These results conclude that the presence of different kind of sleep disorders among the nurses is the indicator of relation between the nurse job with biological disorder of sleep ryteme.

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Brucellosis is a zoonosis with a variety of clinical syndromes including spondylitis. Spondylitis and sacroiliitis are the most frequent complications of skeletal system involvement in brucellosis, but muscle infection and abscess formation are a rare complication and frequently secondary to spondylitis. In this article two cases of brucella spondylitis are presented which has led to abscess formation in one of them, these patients referred with back pain, fever, and with subsequeint MRI examination, wright positive test, were diagnosed as spondylitis. The antibiotic regiment including Doxycycline, Refampin, were prescripted for four months. The clinical signs were disapeared subsequently.

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Background and Objective: Burn is one of the leading causes of mortality in the world. This study was done to determine the effect of the lavender, sesame oil, and combination of Lavender with sesame oil and silver sulfadiazine on the burn wound healing in mice.
Methods: In this experimental study, 30 male adult albino mice were randomly allocated into 5 groups as follows: the negative control group (physiology serum); the positive control group (silver sulfadiazine); the first experimental group (sesame oil), the second experimental group (combination of Lavender with sesame oil) and the third experimental group (Lavender oil).Second degree of  burn wound healing  take place using hot sheet with a diameter of 2 cm. wound treatment was done in five groups in 21-day treatment period. The wound diameter size and restoration percentage were measured on days 1, 3, 6, 9, 18, and 21. Some mice were euthanized and the samples of wounds were used for histopathological studies.
Results: The percentage of wound healing significantly increased in groups of silver sulfadiazine, combination of Lavender with sesame oil, Lavender oil and  sesame oil in compared to control group (P<0.05). The improvement percentage was seen in sulfadiazine and combination of Lavender with sesame oil groups in compared to negative control group. The level of tissue restoration based on the accumulation of collagen, fibroblasts, re-epithelialization were seen in sulfadiazine, combination of Lavender with sesame oil, Lavender oil and sesame oil, respectively.
Conclusion: Combination of Lavender with sesame oil similar to silver sulfadiazine has tissue restoration effect on burn wound healing in animal model.