Mortality dynamics are characterized by changes in mortality regimes. This paper describes a Markov regime switching model which incorporates mortality state switches into mortality dynamics. Using the 1901-2005 US population mortality data, we illustrate that regime switching models can perform better than well-known models in the literature. Furthermore, we extend the Lee-Carter (1992) model ...

Restricted water resources are a limiting factor for irrigation applications throughout the world. The effects of irrigation regimes (amount) on cotton lint yield are known, but there is little information on the effect of irrigation regimes on seed quality of cotton. In this study, the effects of deficit irrigation after the onset of flowering on lint yield and seed quality of cotton (Gossypiu...

Background: The exposure of cell lines to low-dose irradiation leads to changes at molecular level, which may induce adaptive response. We examined radio-adaptive doses effect on human colorectal adenocarcinoma cell line (HT29) and human fetal fibroblasts (MRC5) cell line followed by hyper and hypo fractionation regimes, with main purpose to decrease cell viability in HT29, and at the same time...

the diamondback moth, plutella xylostella (l.) is a serious and economically important pest of cruciferous crops worldwide. the nutritional indices of this pest on four host plants including two canola (slm046 and rgs003) and two cabbage cultivars (green-cornet and glob-master) were determined under laboratory conditions (25 ± 0.5 °c, 65 ± 5% rh and 16: 8 l: d h). the highest relative consumpti...

conclusions the findings suggest that low levels of leptin may be a contributory factor for malnutrition in hd patients. further studies are required to ascertain the significance of leptin levels in relation to nutritional factors in hemodialysis patients. patients and methods this analytical descriptive study included 45 hemodialysis patients and 40 healthy subjects. biochemical parameters an...

background and aims: nutrition has a determinant role in success of professional athletes and dietary supplements can play an important role for supplying the nutritional needs for them in some situations. consumption of dietary supplements (ds) was significantly increased in recent years. based on this fact, assessing the amount, purposes and type of the supplements are all as prior as the aff...

conclusions this study indicated that the use of this model in the children’s nutritional status can result in positive outcomes, and this model can make interventions more effective in this regard. objectives this study aimed to apply authoritative parenting style model in children’s nutritional status. methods this research was a cross-sectional study conducted on 1000 parents selected by ran...

the cowpea seed beetle, callosobruchus maculatus (fab.) (coleoptera: chrysomelidae: bruchinae) is one of the major pests infesting stored pulses and is distributed worldwide. in this research, efficiency of plant extracts from eucalyptus globulus labill. and eucalyptus camaldulensis dehnh. were tested against the cowpea seed beetle for its antifeedant activity. several experiments were designed...

background: in order to provide better advice for prevention of obesity and eating disorders among children, there is a need to have more knowledge of their dietary patterns. this study examined meal and snacking patterns of primary school children in tehran. methods: a total of 761 male and female primary school children from all educational areas in tehran were recruited in a cross‑sectional ...