Family Planning Perspectives pared with 63% of those among Hispanic women and 54% of those among white and other non-Hispanic women.2 The greater prevalence of unplanned pregnancy among low-income women and among black or Hispanic women reflects their lower levels of contraceptive use3 and higher likelihood of contraceptive failure.4 However, it is not clear whether racial and ethnic difference...

cold tolerance is an adaptative mechanism that plants in temperate climates require to survive and grow in suboptimal temperatures.  exposed plant to low temperature produces a myriad of measurable changes in biochemical characters that are often highly correlated with plant cold tolerance.  a key element of cereal adaptation to cold is represented by the capacity for physiological adjustments ...

1. Rao D, Rao JR, Crothers, E et al. Increased erythromycin resistance in clinical Campylobacter in Northern Ireland—an update. J Antimicrob Chemother 2005; 55: 395–6. 2. Bowler ICJW, Connor M, Lessing, MP et al. Quinolone resistance and Campylobacter species. J Antimicrob Chemother 1996; 38: 315. 3. Health Protection Agency. http://www.hpa.org.uk/infections/ topics_az/campy/data_ew.htm (15 Feb...

frost occurrence during plant growth created special conditions to evaluate the effects of planting date on dry matter content and agronomical characteristics of potato cultivars influenced by natural frost in field conditions. a split-plot experiment with three replications was carried out to compare three planting dates, as main plot, from 1 to 21 november with 10 day intervals and four culti...

This work develops a statistical model to assess the frost risk in Rafsanjan, one of the largest pistachio production regions in the world. These models can be used to estimate the probability that a frost happens in a given time-period during the year; a frost happens after 10 warm days in the growing season. These probability estimates then can be used for: (1) assessing the agroclimate risk ...