Today, many different methods are applied for the correct use of foods and to prevent their deterioration. Ensuring healthy conditions for people in food consumption and consumption of healthy foods is very important for human welfare. In this study, food spoilage, the factors that cause food spoilage, its effects on a global basis, food transport systems (cold chain) and measures that prevent or delay food spoilage are discussed.

Background: A healthy normal skin is essential for a person's physical and mental well being. Disability originated from skin diseases is important in daily life. The present study is assessed health related quality of life in Dermatologic patient on autumn 2006.Materials and Methods: This study was performed on 532 outpatient Dermatologic clients by Persian version of SF-36 questionnaire. Data were analyzed by SPSS-13 software. The statistical significance of the observed differences was tested with parametric (t-test, ANOVA and Pearson's correlation) and non-parametric tests (Mann-Whitney, Kruskall-Wallis and Spearman's correlation).Results: Mean age of participants was 33.8±15 and gender of them was 32.5% male and 67.5% female. The mean scores on all SF-36 subscales reported by the participants on this study were considerably lower than the Iranian national norms. Moreover, scores of married participants was lower than singles.Conclusion: Data of the present study reveal one major issue. There is no correlation between the scores in subscales of SF- 36 questionnaire & severity, width and history of hospital admission from Dermatologic disease but there is significant correlation with location of lesion.

End-stage renal disease (ESRD) is a rapidly growing global health problem within the past decades due to increased life expectancy, diabetes mellitus, hypertension, and vascular diseases. Since ESRD is not curable definitively, patients suffering from ESRD have a very low quality of life; therefore, symptomatic management is the cornerstone of medical treatment. Uremia affects almost all body organs, such as skin, through different mechanisms including biochemical, vascular, neurologic, immunologic, hematologic, endocrine, and electrolyte and volume balance disturbances. Some of these conditions are associated with significant morbidity, and patients with ESRD commonly present with a spectrum of Dermatologic disorders. Each one has its own unique presentation and treatment approaches. In this review article, we discuss the clinical presentation, pathophysiology, and treatment of the most common skin disorders associated with ESRD.

Skin as the largest organ, is influenced by wide variety of environmental and external factors. In addition many internal diseases can involve skin. Oral cavity and skin have close contact with each other Like skin which has contact with various external factors, oral cavity and its contents also has touch with different chemical agents, enzymes and diverse microorganisms. Oral lesions of Dermatologic disorders need an exact attention because these oral lesions may be the sole and first presentation of skin diseases and the presence of these lesions may affect the quality of patient ’ s life and nourishment Although oral mucus membrane and skin are in direct continuity with each other, but different condition of oral cavity causes specific characters and functions. Various infectious agents and different Dermatologic disorders cause oral lesions and the most prevalent of these are candida infection and lichen planus. Many oral lesions are treated without specific and exact diagnosis by physician and symptoms like pain and pricking sensation and others are managed. so increasing diagnostic and therapeutic knowledge of these lesion is necessary. So we explain the oral lesion of common Dermatologic disorders in this article in order to facilitate diagnosis and prevention of progression of these disorder that some may be dangerous.