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We have computed molecular descriptors for sizes, shapes, charge distributions, and dispersion interactions for 67 compounds using quantum chemical ab initio and density functional theory methods. For the same compounds, we have fitted the three perturbed-chain polar statistical associating fluid theory (PCP-SAFT) equation of state (EOS) parameters to experimental data and have performed a statistical analysis for relations between the descriptors and the EOS parameters. On this basis, an analysis of the physical significance of the parameters, the limits of the present descriptors, and the PCP-SAFT EOS has been performed. The result is a method that can be used to estimate the vapor pressure curve including the normal boiling point, the liquid volume, the enthalpy of vaporization, the critical data, mixture properties, and so on. When only two of the three parameters are predicted and one is adjusted to experimental normal boiling point data, excellent predictions of all investigated pure compound and mixture properties are obtained. We are convinced that the methodology presented in this work will lead to new EOS applications as well as improved EOS models whose predictive performance is likely to surpass that of most present quantum chemically based, quantitative structure-property relationship, and group contribution methods for a broad range of chemical substances.

Background: Severe acute malnutrition (SAM) is associated with various pathophysiological changes in the body including hematological system. This study was done to understand the hematological profile of severely malnourished children.Methods: This case control study was conducted in the Department of pediatrics, G.S.V.M. Medical College, Kanpur from January 2014 to December 2015. 200 children, aged 6 months- 5years admitted to our hospital with SAM were enrolled as cases. 200 children with normal nutritional status without haematological or infectious conditions attending routine clinic were selected as controls. The hematological parameters were analyzed using an automated blood Analyzer.Results: 95% of the children with SAM had anemia, out of which 52% were severely anemic and 28% were moderately anemic. Mean value for hemoglobin was lower in test group (7.17±2.265gm/dl) as compared to control group (9.22±3.362gm/dl). Children with SAM had statistically significant lower mean values for red cell indices like RBC counts, MCV, MCH and MCHC compared to controls. The mean value of WBC in SAM children was 12.1±11.5×103, while it was 6.2± 7.8×103 in controls. The cases had higher mean value for neutrophils and lower mean value for lymphocytes.Conclusions: Children with SAM had lower mean hemoglobin, hematocrit and red cell indices and higher mean value of total leukocyte and platelet counts. This study recommends that more frequent studies should be done to describe the trend of hematopoietic changes in children with SAM to enhance anticipatory care and outcome of the affected children.

Primary prostatic duct adenocarcinoma, initially labeled as endometrioid carcinoma of the prostate, is a rare neoplasm that displays exophytic growth into the prostatic urethra with involvement of prostatic ducts. Because this tumour arises from preexisting epithelia, there is a possibility that a remnant basal epithelium may be seen in association with these tumours. If this hypothesis is correct, then prostatic duct adenocarcinoma may possibly be mistaken for high-grade prostatic intraepithelial neoplasia (PIN) on needle biopsies. The distribution of basal cells in this tumour has not been described previously. Nine cases of prostatic duct adenocarcinoma and prostatic adenocarcinoma with focal ductal differentiation were studied immunohistochemically with antibodies specifying cytokeratin 34 beta E12, prostate-specific antigen (PSA), and prostatic acid phosphatase (PAP). All cases were positive for PSA and PAP. In some areas of the tumour in eight cases there was a continuous and discontinuous layer of basal cells surrounding islands of carcinoma. This was found with cribriform, comedo, solid, and papillary components of ductal type adenocarcinoma. It is necessary to be aware of the presence of basal cells in association with primary prostatic duct adenocarcinoma. Differentiation of high-grade PIN from this lesion should depend on complex architectural characteristics and Cytologic features rather than presence of a basal cell layer. This finding confirms that the solid, cribriform, papillary, and comedo components initially grow intraluminally within ducts before invasion into surrounding stroma occurs.

INTRODUCTIONGallbladder perforation is a rare complication of acute calculous cholecystitis in adults. Perforation of gallbladder due to enteric fever is extremely rare condition. Pre-operative diagnosis is rarely made and mortality is high.PRESENTATION OF CASEWe report a case of acalculous gallbladder perforation following enteric fever in a 14-year-old boy, who presented as acute abdomen and responded very well after emergency laparotomy and cholecystectomy.DISCUSSIONEnteric fever is common in tropics and a common cause of bowel perforation. Acute cholecystitis is a rare complication of typhoid and gallbladder perforation is extremely rare complication. Ultrasound and CT lack specificity to detect gallbladder perforation. Diagnosis is usually made intra-operatively. Cholecystectomy is treatment of choice in such cases and provides good result.CONCLUSIONGallbladder perforation secondary to enteric fever requires a high degree of clinical suspicion. In typhoid endemic region, it should be considered as a differential diagnosis in patient presenting with a history of prolonged fever and signs of peritonitis. Early diagnosis and immediate surgical intervention are very important in reducing the morbidity and mortality. Cholecystectomy is the choice with a good outcome.