Most nematodes have XO male/XX female sex determination. C. elegans is anomalous, having XX hermaphrodites rather than females. The hermaphrodite condition appears to result from the modification of a basic male/female sex-determination system, which permits both spermatogenesis and oogenesis to occur within a female soma. This modification is achieved by a germ-line-specific control acting at ...

Haplodiploid species display extraordinary sex ratios. However, a differential investment in male and female offspring might also be achieved by a differential provisioning of eggs, as observed in birds and lizards. We investigated this hypothesis in the haplodiploid spider mite Tetranychus urticae, which displays highly female-biased sex ratios. We show that egg size significantly determines n...

The parasitoid wasp genus Achrysocharoides (Eulophidae) is unusual in that many of its species lay male and female eggs in single-sex clutches. The average clutch size of female broods is always greater than that of male broods, and in some species male clutch size is always one. We constructed models that predicted that severely egg-limited wasps should produce equal numbers of male and female...

This study focussed on the relationship between the use of seclusion and staff characteristics, such as number of nurses on shift, male-female staff ratio, level of education and level of work experience. A retrospective analysis of staff characteristics was applied to administrative data from ten wards in four mid-sized general psychiatric hospitals in the Netherlands. The data show that two v...

abstract because of relation between digestive enzyme activity and feeding of insects that directly is in relation with the damage of insects; studying digestive enzyme systems is important in finding new control methods based on inhibiting digestive enzyme activity. recently using transgenic plants containing enzyme inhibitors is important in improving resistance of crops to pests because of s...

this study focused on the income generating capacity of farm family’s own resources and examined the vulnerability to financial risk among the remote and peri-urban farming systems of imo state. primary data was collected using the farming and rural systems approach to randomly select and interview 120 households. descriptive statistics and mann whitney test were used in assessing between group...

present study was conducted to find the variations in fatty acid profile between muscle and liver of male and female of schizothorax zarudnyi. totally, 18 fatty acids of saturated, mono-unsaturated and poly-unsaturated fatty acids were found in both male and female of s. zarudnyi. palmitic acid (c16:0), palmitoleic acid (c16:1) and docosahexaenoic acid (c22:0) were the most abundant fatty acids...

This study has been conducted in order to identify whether there is the co-movements between Male Female employment ratio and Salary compensations agricultural sector of Pakistan. To analyze possible co-movement Pakistan, time series data for yearly period 1990 2020 agriculture are taken from publically available source i.e. website World Bank. The result indicated that a long term relationship...