data utilized in this study were 6800 records of lambs’ life longevity, and survival rate from 263 sires and 1839 dams collected from 1989 through 2009, from the lori-bakhtiari flock at shooli station in shahrekord. the data were analyzed, using linear and hazard ratio models along with weibul function. these models included such non genetic factors as year and month of birth, sex of lamb, type...

Increasing vehicle popularity and, in the meantime, traffic accidents, is one of the most important death factors these days. Many policies have been implemented to decrease accident injuries and damages, and to increase safety. Between three effective factors in accidents, including human, vehicle, and road, human factor is known as the most important one. Human behavior during driving is deri...

Fires will become an increasingly frequent perturbation even under the conditions of mild climate zone and interfere with agricultural landscape. Fire is a natural phenomenon, depending on ecosystems, vegetation may develop contribute to occurrence spread fire. Vegetation sour cherry orchard located in climatically dry South Moravian Region, Czech Republic (CR), was evaluated. assessment perfor...

Mortality has decreased in children with end-stage kidney disease. Decreases in mortality during dialysis and improved graft survival contributed to this improvement. However, it is unknown whether rates of death with graft function have also improved. We measured this in first transplant recipients under 21 years of age registered in the US Renal Data System. Cox models were used with a time-d...

Coronavirus disease 2019 (COVID-19) is a respiratory infectious caused by Severe Acute Respiratory Syndrome 2 (SARS-CoV-2). COVID-19 in patients with comorbidities progresses more rapidly to severity and frequently leads death. Therefore, the objective of this study determine length survival estimation Hazard Ratio (HR) comorbidities. The design used retrospective cohort 3,751 samples was analy...

BACKGROUND Tissue Doppler imaging (TDI) detects left ventricular dysfunction in patients with heart failure and normal ejection fraction, but the prognostic significance of left ventricular dysfunction by TDI in the general population is unknown. METHODS AND RESULTS Within the Copenhagen City Heart Study, a large community-based population study, cardiac function was evaluated in 1036 partici...

PURPOSE We reviewed the survival time for patients with primary brain tumors undergoing treatment with stereotactic radiation methods at the Masaryk Memorial Cancer Institute Brno. We also identified risk factors and characteristics, and described their influence on survival time. METHODS In summarizing survival data, there are two functions of principal interest, namely, the survival functio...