Background: Nutrition plays a survival role in maintaining healthy aging by preventing some diseases and controlling others. Aim of the study: Assess the knowledge regarding nutrition among the elderly in rural areas, Sharkia Governorate Subjects and Methods: Research design: Descriptive design was adopted to carry out this study. Setting: The study was conducted at Mobasher Village, Sharkia Governorate, Egypt. Subjects: purposive sample of 60 elderly subjects who fulfilled the study inclusion criteria. Tools of data collection: A structured interview questionnaire was used for data collection. It was composed of three parts. Part I: Elderly demographic characteristics, Part II: Medical history, and Part III: General nutritional knowledge. Results:The study reveals that only (16.7%) of the studied elderly had satisfactory knowledge regarding nutrition, also the study shows that knowledge scores had statistically significant positive correlations with the elderly's educational level. Meanwhile, this score had a negative correlation with the elderly age. Conclusion: It is apparent from this study that extremely poor nutritional knowledge was experienced by most of the elderly. Recommendations: Develop a nutritional education program appropriate for the elderly's age, socioeconomic status, and level of education.

Some new concepts of grill nano topological structures throughout this paper are presented and studied. We generalize the famous closure operators that can be induced by binary operations. Some basic investigations for proposed structures are discussed. In addition, the connection between rough sets and grill set theory can be illustrated via some numerous examples. Finally, a comparison between proposed approaches and other studies is established.

Background: Anemia is a common, multifactorial condition in the elderly; it is prevalence increases with age which adversely affects older adult's general health and physical activity. Rural elderly are more prone to becoming anemic due to lack of medical facilities and poor economic conditions. The aim of this study was to investigate the association between anemia and physical activity among elderly in rural areas, Sharkia governorate. Design: A cross-sectional descriptive design was utilized in the study. Setting: The study was conducted at Sharkiat Mobasher Village, Elibrahemya District, Sharkia Governorate. Sample: A systematic random sampling technique of 150 elderly, then anemic elderly were selected and given the nutritional guidelines. Tools: Four tools were used to collect the study data: I) A structured interview sheet. II) The Mini Nutritional Assessment short form (MNA). III) Assessment of elderly's activity level [Katz scale for activities of daily life (ADLs) & International Physical Activity Questionnaire (IPAQ) short form]. IV) Laboratory investigations [complete blood count (CBC) & stool analysis]. Results: The study results revealed that the prevalence of anemia among the studied elderly was 36.7%. The anemic elderly had poorer physical activity level and more disability in activities of daily living than non-anemic elderly. Conclusion: Anemia representing an important health problem among older individuals and had an adverse effect on the elderly's physical activity. Recommendation: Health education programs to increase the elderly awareness about the importance of periodic medical checkup and healthy life habits.