Analysis between Platelet Count and Blood Groups in Apheresis Platelet Donors with Demographic Features

Platelet transfusion is used to prevent bleeding in patients with thrombocytopenia or platelet dysfunction. Purpose of investigating demographic characteristics of eligible volunteers as platelet donors and of demonstrating the association of platelet counts with blood groups as well as other factors. We used data of individuals who referred to a blood center in our hospital. Age, body weight, body mass index (BMI), and gender were determined, and than hemogram values such as leukocyte, hemoglobin, hematocrit, and platelet and ABO blood types of those individuals were identified. A statistically significant difference determined for height, body weight, and BMI in both genders. Although BMI was lower in the group of platelet count ≤ 250, it was higher in a group of platelet count > 250. Furthermore, platelet count was more moderate in blood group O Rh-positive but, no significant difference was group O Rh-negative. Platelet count was higher in other Rh-positive blood groups than Rh negatives. BMI is vital in apheresis donors, and individuals with higher BMI values may prefer in case of double dose or more apheresis need. The determination of platelet counts in Rh positives is more elevated than Rh negatives

Evaluation of management of postpneumonic empyema thoracis in children

Background Empyema is a well-known sequelae of pneumonia, which is increasingly being reported in children despite strict management. The appropriate management remains controversial. The aim of this study was to evaluate different management options of postpneumonic empyema in children.Materials and methods A total of 330 patients were reviewed between 2002 and 2012; their ages ranged from 1.25 to 15 years, with a median age of 4.3 years. The various management procedures included thoracentesis (n= 11), chest tube drainage (n= 229), chest tube drainage with intrapleural fibrinolytic therapy (n =117), video-assisted thoracoscopic surgery (VATS) (n =35), and thoracotomy because of a trapped lung noted on admissions and failed procedures (n =94).Results Variable success rates were noted as follows: tube thoracotomy (48.24%), fibrinolytic treatment (68.37%), and VATS (85.71%). Postoperative complications (11.14%) included wound infection (n = 10), atelectasis (n= 18), delayed expansion (n= 7), and need for reoperation (n= 2). Four patients died (1.21%), two of them  following thoracotomy, one patient after fibrinolysis, and one patient following VATS. Patients treated with thoracotomy recovered completely.Conclusion New therapeutic modalities had variable success rates in children with postpneumonic empyema. Thoracotomy is still needed as a last resort for cases unresponsive to chemical fibrinolysis and following failed thoracoscopy.Keywords: decortication, empyema, fibrinolysis, thoracotom

Molecular basis for solvent dependent morphologies observed on electrosprayed surfaces

We study the causes of the observed tunable hydrophobicity of poly(styrene-co-perfluoroalkyl ethylacrylate) electrosprayed in THF, DMF, and THF : DMF (1 : 1) solvents. Under the assumption that equilibrium morphologies in the solvent significantly affect the patterns observed on electrosprayed surfaces, we use atomistic and coarse-grained simulations supported by dynamic light scattering (DLS) experiments to focus on the parameters that affect the resulting morphology of superhydrophobic electrosprayed beads. The differing equilibrium chain size distributions in these solvents examined by DLS are corroborated by chain dimensions obtained via molecular dynamics simulations. Mesoscopic morphologies monitored by dissipative particle dynamics simulations explain experimental observations; in particular, the preference of the polymer for THF over DMF in the binary mixture rationalizes the dual scale roughness driven by stable microphase separation. Drying phenomena that affect resultant dual-scale roughness are described in three stages, each interpreted by concentration dependent diffusion and surface mass transfer coefficients of the solvents. Irrespective of the presence of polar groups in the structure, a conflict between the lower-boiling point solvent adhering to the polymer and the less volatile solvent abundant in the bulk leads to perfectly hydrophobic surfaces

A Comparative Study on Bitemporal Semistructured Data Warehouses and Relational Databases

DergiPark: 289296tujesData warehouses and relational databases are two different areas for data storage. A special structured data warehouse is prepared in this study that is bitemporal and its structure is formed as nested. Same data is stored in data warehouse and the relational database. These two data storage area is competed with each other. Same resulting queries are queried by using relational database objects and data warehouse components. The results are compared and evaluated in terms of query sets, processing time and disk space usage.Veri ambarları ve ilişkisel veri tabanları büyük veriyi saklamak ve işlemek için kullanılan iki farklı depolama alanıdır. Bu çalışmada; yapısal olarak özelleştirilmiş iki zamanlı ve iç içe yapıda bir veri ambarı hazırlanmıştır. Aynı veriler veri ambarında ve ilişkisel veri tabanında saklanarak bu iki depolama alanı arasında karşılaştırma yapılmıştır. Aynı sonucu verecek sorgular hem veri tabanı tabloları kullanılarak hem de veri ambarı bileşenleri kullanılarak sorgulanmıştır. Sonuçlar sorgu setleri, yürütme zamanları ve disk alanı kullanımı açısından değerlendirilmiştir ve karşılaştırılmıştır