unintended pregnancy is among the most troubling public health problems and a major reproductive health issue worldwide imposing appreciable socioeconomic burden on individuals and society. governments generally plan to control growth of births (especially wanted births as well as orphans and illegitimate births) imposing extra burden on public funding of the governments which inevitably affect...

in this study myer index was calculated for six groups of a sample of urban and rural population of iran, classified by population size. the data used were information collected on 146116 urban and 158124 rural populations, for estimation of death, birth and growth rates in iran. the results indicate: the range of the index varies between 23.14-68.06 for women and 28.41-69.62 for men (urban or ...

the life history of an acarid mite, tyrophagus putrescentiae (schrank), on fusarium graminearum clade was investigated at 25 â± 1â°c, 60 â± 5% rh and a photoperiod of 16: 8 (l: d) h. incubation period for egg hatch, larval and nymphal periods and adult longevity were 2.22 â± 0.06, 3.46 â± 0.12, 4.84 â± 0.16 and 10.05 â± 0.9 days, respectively. the average life span of males and females were 22....

abstract the lack of water is the most important problem in extensive landscape especially turfgrass in arid and semi arid regions. the root responses in native and commercial grasses under drought stress were investigated. this experiment was in a factorial experiment based on unbalanced completely random design on the year 2006. the specious that we used in this experiment included (i) commer...

spodoptera exigua (hübner) was studied in laboratory (25±1ºc, 60±5% rh, and 16:8 l:d h) exploring the antibiotic effects of 10 canola cultivars (sarigol, slm046, hayula420, rgs003, opera, okapi, licord, modena, zarfam and talaye) on its demographic parameters. the age-stage, two-sex and the traditional female age-specific life tables were constructed by using the demographic data. the larval pe...

one of the most important subjects in 21 century in relation to sustainable urban development is urban form. urban form that is pattern of spatial distribution of human activities in a specific period can be divided into two kinds: compact city and urban sprawl. because there is a close relation between urban form and urban sustainability, urban planners have to know about urban pattern and for...

biological characteristics and population growth parameters of diaeretiella rapae (hym.: braconidae) on russian wheat aphid, diuraphis noxia (hem.: aphididae) were investigated at five constant temperatures (10, 15, 20, 25 and 27.5 ?c), 60±5% rh and a photoperiodicity of 16:8 h (light:dark). developmental period of immature stages of d. rapae was the lowest at 25 ?c (11.23±0.144 days) and highe...

population dynamic parameters of red mullet, mullus barbatus (n=592) caught by trawlers operating in arzew gulf (algeria) in the western mediterranean were studied. samples were collected between february 2013 and january 2014. females ranged from 10.9-23.2 cm in total length and 12-149.2 g in weight whereas males length was comprised between 12.6 and 19.7 cm and weight between 21.3 and 99.9 g....

increasing rate of world population growth has tremendous and of ten detrimental impacts on natural environment of our planet. unreasonable consumption of non-renewable sources of energy, deforestation, and the extinction of species are among these impacts. there are many who believe that global warming which is resulted due to population :growth, urbanization and over and irresponsible consump...

in this study, the growth of two strains pseudomonas fluorescens vupf5 and p. fluorescens vupf5-1 (mutant bacterium similar to mutants of regulatory gacs/gaca system) were evaluated in the organic media. this spontaneous mutation blocked biosynthesis of the antimicrobial compounds hydrogen cyanide, phenazine and exoprotease by biocontrol strain pseudomonas fluorescens vupf5. by using organic me...