introduction chronic diarrhea of infancy is a heterogeneous syndrome that includes several diseases with different etiologies. the aim of this study was investigating chronic diarrhea, its etiologies, clinical features and outcomes in infancy.materials and methods retrospective study investigating infants hospitalized in the gastroenterology department of tehran tertiary care center.the main de...

transient hypogammaglobulinemia (thi) of infancy is a common primary immunodeficiency usually resolves by 3 years of age. in this study, clinical, immunological data and outcome of 101 retrospectively diagnosed thi patients were evaluated. majority of them suffered from recurrent respiratory infections (70.3%). initial igg, igm and iga levels were 446.7±121.5, 67.5±32.8, and 25.6±16.8 mg/dl, re...

non-hodgkin lymphoma is very uncommon in infancy and skin as the primary site of involvement in non-hodgkin lymphoma is rarely encountered. we describe a 10-month-old infant with t-cell non-hodgkin lymphoma who presented with multiple skin nodules as the predominant feature of her disease. the clinical manifestations, treatment strategy and disease outcome are reviewed. key words: non-hodgkin l...

We study a simple ow control method for ATM networks cal l ed peri odi c averaging of rate (PARing). Thi s method attempts to reduce the burstiness of tra c by bu ering. We present asymptoti c resul ts, obtained via the theory of l arge deviati ons, on the memory requi rements, the multiplexing gainof PARed sources, and the tradeo s between bu ering inside and outside of the network. We di scus...

Báo cáo giới thiệu quy trình tính toán tạo bãi biển nhân tạo, chú trọng chủ yếu đến việc vận dụng các lời giải giải tích của lý thuyết về mặt cắt ngang bãi biển cân bằng, lời giải của của mô hình diễn biến đường bờ để tính toán khả năng chịu bão của bãi nhân tạo, đánh giá tốc độ xói lở của bãi để xác định chu kỳ bảo dưỡng bãi. Các kết quả tổng hợp bước đầu này có thể giúp chọn lựa kích thước bã...

background/purpose: ulcerative colitis(uc)  is a chronic, idiopathic, destructive disorder of colon. the incidence of uc peaks in the age group of15 to 25,and only 1% are infantile. despite initial medical treatment, in refractory cases, colectomy is needed. there are few studies regard surgical results in infancy with uc. methods:in this retrospective study we reviewed infants with ulcerative ...

infantile haemangiomas (ih) are the most common vascular tumors occurring in early childhood, with a prevalence of approximately 5-10% of infants. these vascular tumors are divided into two main groups including infantile haemangioma and vascular malformations. although, haemangioma of infancy are common, benign and self-limited tumors, a significant percent of these lesions are associated with...