degenerative diseases and early-life programming of late-life health and survival is being actively discussed in the scientific literature (Lucas, 1991; Barker, 1992; 1998; Kuh & BenShlomo, 1997; Leon et al., 1998; Lucas et al., 1999; Blackwell et al., 2001). The historical improvement in early-life conditions may be responsible for the observed significant increase in human longevity through t...

The different life cycles of aphid species make these organisms good models for studying the short-term consequences of sex. The bird cherry-oat aphid Rhopalosiphum padi has a wide geographic distribution and correspondingly different life cycles. In this study, the life cycles of R. padi collected from six different regions in China were characterized experimentally by comparing the responses ...

Sitophilus zeamais is one of the main pests stored corn. The objective present work was to identify resistance corn genotypes attack different densities S. zeamais. 15, 20, 25, 30 and 35 adult insects were used for infestation in samples four maize genotypes: Nutricional Embrapa, Milho Roxo, 8 Carreiras Palha Roxa. number emerged insects, grain mass loss, insect weight, longevity sex ratio eval...

Abstract Body height is positively correlated with overall health and survival. Previous studies have found that taller people are healthier live longer than their smaller counterparts. Despite numerous investigations, the correlation between adult stature longevity remains uncertain. The objective of present study to evaluate relationship lifespan. Data were available from 480493 men 364666 wo...

aphis gossypii glover is one of the most important pests of greenhouse cucumber and pepper in the world and iran. in this research, life table and biology of a. gossypii were investigated on cucumber (cucumis sativus cv. super sultan) and pepper (capsicum annum cv. marqueza) in a growth chamber at 25±1°c and 60±5% rh and a photoperiod of 14 l: 10 d hour.the results showed thatdevelopmental time...

beet armyworm (spodoptera exigua (hubner)) (lepidoptera: noctuidae) is the most economically important sugar beet (beta vulgaris) pest worldwide. the main control method of this pest is insecticides use. thus, it is important to develop alternative means of controlling this pest, including host plant resistance using plant lectins. in the current study, the effects of gna (galanthus nivalis agg...

the side-effects of amitraz, buprofezin and propargite were studied on encarsia formosa (gahan)in the laboratory, using a life table response experiment and the iobc system for their toxicity. bioassayswere conducted by dipping bean leaves containing third instar nymphs of the whitefly trialeurodesvaporariorum (westwood), parasitized by e. formosa, in insecticide solutions or caging adult paras...