Palos Hills police are offering a $1,000 reward for information leading to the arrest and conviction of a man believed to have sexually assaulted a woman. 9 when police say the man raped the victim at gunpoint near 99th Terrace and 84th Avenue.Police believe the same man also attempted to carjack one woman and is responsible for the aggravated kidnapping of another woman.
The European Study of Daily Fecundability (19) collected data on 782 couples, which were married or in a stable relation, from seven European centers (Milan, Verona, Lugano, Dusseldorf, Paris, London, and Brussels) providing services on fertility awareness and natural family planning by using symptothermal methods.Women enrolled were between 18 and 40 years of age, were not taking hormonal medications or drugs affecting fertility, had no known impairment of fecundity and had at least one menses after cessation of breastfeeding or after delivery and were experienced in the use of one method of natural family planning.The participants were followed prospectively during one or more menstrual cycles, as they recorded daily basal body temperatures, vaginal observations from cervical mucus, and the days during which intercourse and menstrual bleeding occurred.The validation or confutation of these theories is made difficult by the fact that, typically, multiple intercourse acts occur during a cycle, and it is not known which is the one responsible for the conception. (18–21)], in such a case, a statistical model is needed to analyze available data, and exploit all cycles and not only the very small number of one-intercourse cycles.The sex of the baby can be represented by the aggregation across Bernoulli trials for each intercourse day (22).In this paper, we are interested in evaluating the effect of two biometrical variables on the sex of the baby, which have been studied extensively in the past: the length of the follicular phase and the pattern of intercourse. (2) found that cycles with shorter follicular phase lengths are slightly more likely to result in male babies, while cycles with longer follicular phases are more likely to result in female babies.
This theory, however, has been discussed by Gray et al.
The starting point is clearly the fact that, although the proportions of sperm conducing chromosomes X and Y are the same, the number of male births is slightly higher than the number of females (1).
Many studies analyzed the relation between sex of the newborn and biological and social factors, such as length of follicular phase (2), pattern of intercourse (3–7), diet of the woman (8, 9), behavior during coital act (10), parents age (11, 12), historical events (11), atmospheric temperature (13), environmental pollution (14), and so on.
We obtain posterior distributions of the parameters, by modifying the Gibbs sampling algorithm proposed by Dunson and Stanford (21) to model conception probabilities.
In Section 2, we present the dataset obtained from the two fecundability studies, Section 3 proposes the model and priors, Section 4 applies the model to data and Section 5 discusses the results.
We also obtain a slightly larger probability, although not significant, of conceiving a female just after the mucus peak day.