xPROT : OBJECT-ORIENTED PROTOTYPING MODEL

Even relational database management systems have now become the standard for data processing applications; object oriented database systems are being developed to meet the complex data modeling requirements. In this paper an object-based system, xPROT, is introduced which could be used for rapid program development. System includes some pre-defined methods and classes as Menu, Report, View, Table. In xPROT the schema as well as the data manipulation is expressed by the same command-based language. Expressiveness, easiness and flexibility in terms of data modeling power is investigated

Comparative Investigation on Magnetic Behavior of Partial Rare Earth Element (Re: Lu, Yb, and Dy) Substituted Y0.5Re0.5BCO (123) Superconductors

Partial Re (rare earth elements: Lu, Yb and Dy) substituted YBaCuO (123) superconductors synthesized by solid-state reaction (SSR) procedure have been investigated via x-ray diffraction, scanning electron microscopy, a.c. magnetic susceptibility, and d.c. magnetization, and calculations. The measurements of a.c. magnetic susceptibility have been carried out at constant a.c. field amplitude and constant frequency for the samples studied. The temperature dependence of intergranular critical current density (Jcm) has been estimated from the a.c. magnetic susceptibility data. The d.c. magnetization measurements were performed at the temperatures of 5 K, 20 K, and 77 K separately. The variation of critical current density (Jc) with magnetic field (µ0H) has been evaluated from the d.c. magnetization data by using upper and lower branch of the major hysteresis curve. Lu substituted Y0.5Lu0.5BCO (123) sample shows higher critical current density than Yb and Dy substituted samples at low-temperature (lower than 77 K) regions. © 2019, Springer Science+Business Media, LLC, part of Springer Nature

Theoretical studies of molecular structure and vibrational spectra of 2-amino-5-phenyl-1,3,4-thiadiazole

PMID = 1609595

Theoretical studies on molecular structure and vibrational spectra of 8-hydroxyquinolinium picrate

PMID = 2165899

Corrigendum to "Theoretical studies on molecular structure and vibrational spectra of 8-hydroxyquinolinium picrate" [Spectrochim. Acta Part A 79 (2011) 1425-1429]

PMID = 3095202

Solunumsal yoğun bakım ünitesinde mekanik ventilasyon uygulanan olgularda üst gastro-intestinal sistem kanamaları

Aim: The aims of this study were to evaluate the frequency, risk factors and outcomes of upper gastro-intestinal system (GIS) bleeding in respiratory intensive care unit (ICU) patients who received mechanical ventilation. Material and Methods: Fifty-six patients (39 males, mean age 64.2;plusmn;16.6 years), who were treated in the respiratory ICU for more than 5 days were included in the study. Risk factors and clinical outcomes of patients with gastrointestinal bleeding were evaluated. Results: Out of 56 patients, 10 (17.9%) developed upper GIS bleeding and 30 (53.6%) had ventilator associated pneumonia (VAP) and 22 of them (39.3%) died. There was no relationship between stress ulcer prophylaxis, feeding type and upper GIS bleeding, VAP. In patients with upper GIS bleeding, the frequency of VAP was higher (p=0.011), the duration of mechanical ventilation, stay in ICU and hospital were longer (p=0.05, p=0.023 and p=0.038, respectively) and mortality rate was found to be higher (p=0.006). There was no relationship between upper GIS bleeding and disease severity on admission, use of systemic corticosteroid, anti-coagulant therapy and coagulation disorders. Conclusion: Upper GIS bleeding increases the risk of VAP and mortality; prolongs the durations of stay in the ICU and hospital. Therefore, we conclude that upper GIS bleeding is a poor prognostic factor for respiratory ICU patients.Amaç: Bu çalışmada, mekanik ventilasyon uygulanan solunumsal yoğun bakım ünitesi (YBÜ) olgularında gelişen üst gastro-intestinal sistem (GİS) kanaması sıklığının, risk faktörlerinin ve sonuçlarının araştırılması amaçlanmıştır. Yöntem ve Gereç: Çalışmaya, solunumsal YBÜ'de beş günden uzun süre izlenen 56 olgu (39'u erkek, yaş ortalaması 64.2±16.6) alınmıştır. Gastro-intestinal sistem kanaması gelişen olguların risk faktörleri ve klinik sonuçları değerlendirilmiştir. Bulgular: 54 olgunun, 10'unda (% 17.9) üst GİS kanaması, 30'unda (% 53.6) ventilatör ilişkili pnömoni (VİP) gelişmiş ve 22'si (% 39.3) eksitus olmuştur. Stres ülser profilaksisi ve beslenme tipi ile üst GİS kanaması ve VİP gelişmesi arasında ilişki saptanmamıştır. Üst GİS kanaması ortaya çıkan olgularda; VİP gelişme oranı daha fazla (p=0.011), mekanik ventilasyon (MV) uygulama, YBÜ ve hastanede yatış süreleri daha uzun (sırasıyla, p=0.05, p=0.023 ve p=0.038) ve mortalite oranı daha yüksek (p=0.006) bulunmuştur. Başvurudaki hastalık ciddiyeti, sistemik kortikosterod kullanımı, anti-koagülan tedavi ve koagülasyon bozuklukları ile üst GİS kanaması arasında ilişki saptanmamıştır. Sonuç: Üst GİS kanaması VİP gelişme ve mortalite oranlarını artırmakta, YBÜ ve hastanede yatış sürelerini uzatmaktadır. Bu nedenle, solunumsal YBÜ olguları için üst GİS kanamasının kötü prognostik faktör olduğu sonucuna varılmıştır