Ovarian hormone elevations are associated with enhanced learning/memory. During behavioral estrus or pregnancy, progestins, such as progesterone (P(4)) and its metabolite 5 alpha-pregnan-3 alpha-ol-20-one (3 alpha,5 alpha-THP), are elevated due, in part, to corpora luteal and placental secretion. During 'pseudopregnancy', the induction of corpora luteal functioning results in a hormonal milieu ...

Assembly lines are special kinds of production systems which are of great importance in the industrial production of high quantity commodities. In many practical manufacturing systems, configuration of assembly lines is fixed and designing a new line may be incurred huge amount of costs and thereby it is not desirable for practitioners. When some changes related to market demand occur, it is wo...

51 The effects of the menstrual cycle on cognitive functions were investigated using simple 52 verbal and spatial tasks. Eight healthy young women with a regular, established 28-day men53 strual cycle and the occurrence of ovulation on day 14 were tested four times during one 54 cycle. Ten women on non-tricyclic birth control pills were also tested weekly during one cycle. 55 Both groups were m...

Several studies have reported shifts in perceptual asymmetry during the menstrual cycle, but the potential confounding effect of mood changes has been largely ignored. In this study, 24 female subjects completed four visual laterality tasks and a mood questionnaire at three phases of the cycle. Results indicate no overall effect of cycle phase on any of the asymmetry or mood scores. However, re...

The effects of the menstrual cycle on cognitive functions were investigated using simple verbal and spatial tasks. Eight healthy young women with a regular, established 28-day menstrual cycle and the occurrence of ovulation on day 14 were tested four times during one cycle. Ten women on non-tricyclic birth control pills were also tested weekly during one cycle. Both groups were matched in age, ...

Assessing learners’ present and real life language needs can contribute to learners’ active participation in learning processes. , Assessing learners’ task-based needs and aligning them with pedagogical tasks are significant in English for medical purpose (EMS) courses. The main objectives of the present study were to assess learners’ needs and to determine whether they are practiced in EMS cou...

This paper analyzes the performance of a robotic system with two machines in which machines are configured in a circular layout and produce non-identical parts repetitively. The non-destructive testing (NDT) is performed by a stationary robotic arm located in the center of the circle, or a cluster tool. The robotic arm integrates multiple tasks, mainly the NDT of the part and its transition bet...

a special class of cubic graphs are the cycle permutation graphs. a cycle permutation graph pn(α) is defined by taking two vertex-disjoint cycles on n vertices and adding a matching between the vertices of the two cycles.in this paper we determine a good upper bound for tenacity of cycle permutation graphs.

The current study is an attempt to investigate the impact of decision-making (selecting and matching) tasks and production (creation of sentences and completion of sentences) tasks on the collocational knowledge of Iranian intermediate EFL learners. To this end, sixty EFL learners were divided into two experimental (decision-making and production) groups. To determine the effects of the tasks, ...