Drosophila melanogaster males transfer seminal fluid proteins along with sperm during mating. Among these proteins, ACPs (Accessory gland proteins) from the male's accessory gland induce behavioral, physiological, and life span reduction in mated females and mediate sperm storage and utilization. A previous evolutionary EST screen in D. simulans identified partial cDNAs for 57 new candidate ACP...

Poultry litter is a valuable nutrient source for crop production. Successful management to reduce ammonia and its harmful side-effects on poultry and the environment can be aided by the use of litter amendments. In this study, three acidifiers, two biological treatments, one chemical urease inhibitor and two adsorber amendments were added to poultry litter. Chemical, physical and microbiologica...

Our understanding of how male seminal fluid proteins (SFPs) influence the outcome of copulation in a wide range of insect taxa has been fueled primarily by studies of Drosophila (1). SFPs are known to localize, after copulation, to specific regions of the female reproductive tract and nervous system. Manipulative studies revealed that these proteins control a number of postcopulatory processes,...

sures retention or immediate memory, which is justifiably considered to be a significant aspect of mental capacity and one which is especially important clinically because of its close relationship to mental impairment. The test has obvious technical advantages, such as brevity of administration, lack of need for test materials and the objective character of the patient's performance. Neverthel...

Nine lab-scale continuous flow porous-pot bioreactors operating at various solids retention times and hydraulic retention times were conducted to simulate activated sludge (AS) systems and to evaluate the biodegradation kinetic models for the fate of 17α-ethinylestradiol (EE2), bisphenol-A (BPA), and triclosan (TCS) at the µg/L range. Mathematical models were applied to describe the degradation...

online) offers the first evidence that males of one species of spider undergo programmed death immediately following mating and consider the potential adaptive significance of such an unusual behaviour. The two researchers have been studying a species in the cannibalistic genus of orb-weaving spider, Argiope, where there has been some suggestion males may die after mating. But now the researche...

The decrease in urinary nitrogen excretion (i.e. increased nitrogen retention) following intramuscular injection of human growth hormone (HGH) has been used to differentiate hypopituitary dwarfism from other types of short stature. While small decreases can be demonstrated in almost all children who are given HGH, in the hypopituitary child the decrease is greater and more prolonged. Using a st...

IN a previous paper,1 the clinical features of fluid retention complicating the use of guanethidine were discussed. Of 134 patients treated continuously for over a year, 44 (32.8 per cent) were observed to retain fluid and yet, comparing these with the 90 who apparently avoided the complication, no significant differences could be found in respect to age, previous renal disease, change in the f...

The depth and duration of snow pack is declining in the northeastern United States as a result of warming air temperatures. Since snow insulates soil, a decreased snow pack can increase the frequency of soil freezing, which has been shown to have important biogeochemical implications. One of the most notable effects of soil freezing is increased inorganic nitrogen losses from soil during the fo...