BACKGROUND The prognostic nutritional index (PNI) is related to the prognosis in many cancers; however, its role in esophageal cancer is still controversial. Further, controversy exists concerning the optimal cut-off points for PNI to predict survival. The aim of this study was to determine the prognostic value of PNI and propose the optimal cut-off points for PNI in predicting cancer-specific ...

We analyzed the cooling phase of an x-ray superburst of the low-mass X-ray binary 4U 1636-53 using different models in XSPEC software. Our goal was to find the behavior of certain properties of the neutron star, e.g. radius and temperature, and to find the chemical composition of the neutron star atmosphere. We tried 6 different models for the cooling phase of the superburst and found that the ...

For a positive integer k, let k + k denote the poset consisting of two disjoint k-element chains, with all points of one chain incomparable with all points of the other. Bosek, Krawczyk and Szczypka showed that for each k ≥ 1, there exists a constant ck so that First Fit will use at most ckw 2 chains in partitioning a poset P of width at most w, provided the poset excludes k+k as a subposet. Th...

background: person-organization fit is an effective factor for recruiting, selection, and retention of human resources in organizations. objective: this study examined the correlation between person-organization fit and performance indicators used in healthcare in the hospitals affiliated with qazvin university of medical sciences (qums). methods: this descriptive cross-sectional study was cond...

The manifestation of CP, T violation in the leptonic sector is studied for flavour neutrino oscillations, both in vacuum and in matter. Different conditions of short-base-line versus long-base-line experiments are discussed.

Front-line staff routinely exposed to aerosol-generating procedures are at a particularly high risk of transmission severe acute respiratory syndrome coronavirus 2. We aimed assess the adequacy protection provided by available N95/P2 masks procedures. performed prospective audit fit-testing results. A convenience sample from Department Anaesthesia and Pain Medicine, who opted undergo qualitativ...

BACKGROUND The association between CD14-159C/T polymorphism and sepsis has been assessed but results of current studies appeared conflicting and inconstant. This analysis was aimed to determine whether the CD14-159C/T polymorphism confers susceptibility to sepsis or is associated with increased risk of death from sepsis. METHOD The authors conducted a comprehensive search of PubMed, EMBASE, I...