No abstract

This paper presents a comparative study among different jute fabric structures in jute-reinforced polypropylene composites. Knitted and woven fabrics of different structures are produced, which are subsequently consolidated into composite materials using a heat-press method. The variation of mechanical properties and water absorption characteristics of different jute fabrics alone are evaluated and described. The effects of fabric structures on the performance of resulting composites are investigated. Composites having twill structure fabrics had the highest value of tensile strength (48 MPa), which was 134% higher than that of composites having plain structure fabrics. Water uptake of composites having rib structure fabrics was found to be 58% less than that of the composites having plain structure fabrics.

Head and neck tuberculosis is not an uncommon disease and though cervical lymphadenitis is the most common presentation, isolated involvement of the larynx, ear and other subsites are not an entirely unknown entity. The clinical presentation of tuberculosis of the head and neck region can be varied and often misleading. It is therefore important for the clinician to be aware of the condition and consider it in their differential diagnosis.

No abstract

INTRODUCTION:Chronic kidney disease is a worldwide public health problem. Chronic renal failure is defined by the National Kidney Foundation as either damage or a glomerular filtration rate less than 60ml/minute/1.73m 2 of body surface area for more than 3 months. The primary cause of anemia in patients with chronic renal failure is insufficient production of erythropoietin by the diseased kidneys. As there is paucity of data regarding the haematological changes in chronic renal failure in this region, the present study was aimed to achieve the following objectives. AIMS AND OBJECTIVES: 1. To assess the various hematological changes in chronic renal failure. 2. To assess the correlation between hematological and biochemical parameters. MATERIALS AND METHODS:The present study was conducted in the department of Medicine, in a tertiary care hospital, Assam for one year. STUDY DESIGN: Hospital based, single centred observational study. All patients with features of chronic renal failure, who were admitted in medicine wards, were taken randomly for the study. RESULTS: The series included 100 cases of which the highest number 37% were in the age group of 51-60 years. Male preponderance was observed with males being 65% and females 35%. Generalized weakness and swelling were the commonest symptoms observed in 76% and 74% cases and pallor, hypertension, pedal edema, ascites and acidotic breathing on examination were found in 85%, 70%, 57%, 17% and 17% cases respectively. 72% patients had serum creatinine between 5.1 to 10 mg/dl. A negative co-relationship was observed between serum creatinine and hemoglogin.All cases had anemia of which 52% had hemoglobin between 7 to 10 gm/dl, 61% had normocytic normochronic anemia and 20% had absolute iron deficiency. Diabetes was the commonest etiology in 42%, followed by hypertension 35%, undiagnosed 12%, chronic glomerulonephritis 7%, polycystic kidney and obstructive nephropathy in 2% each respectively. CONCLUSION: Anemia is the commonest haematological manifestation with normocytic normochromic anemia being the commonest morphological type. Absolute iron deficiency was significantly associated with chronic renal failure. Diabetes and hypertension were the commonest etiological factors. The concentration of haemoglobin showed negative correlationship with serum creatinine which was statistically significant.