Existence of periodic solutions for non-linear third order autonomous differential equation (O.D.E.) has not been investigated to as large an extent as non-linear second order. The popular Poincare-Bendixon theorem applicable to second order equation is not valid for third order equation (see [3]). This conclusion opens a way for further investigation.

Problem definition: In theory, all coordinating contracts are equivalent; however, the minimum order quantity (MOQ) contract is observed to be more popular in practice. We seek understand whether decision makers as suppliers can perform better with MOQ and, if so, why. also study indeed preferred when subjects allowed choose among contracts. Academic/practical relevance: The behavioral operatio...

OBJECTIVE In the context of aiming to achieve universal health coverage in Mexico, this study compares access to prescribed medicines (ATPM) between Seguro Popular (SP) and non-SP affiliated outpatient health service users. MATERIALS AND METHODS ATPM by 6,123 users of outpatient services was analyzed using the National Health and Nutrition Survey 2012. Adjusted bi-probit models were performed...

Studies have shown that some musical pieces may preferentially activate reward centers in the brain. Less is known, however, about the structural aspects of music that are associated with this activation. Based on the music cognition literature, we propose two hypotheses for why some musical pieces are preferred over others. The first, the Absolute-Surprise Hypothesis, states that unexpected ev...

This paper reviews the empirical evidence on the consequences of the introduction of Seguro Popular, a program designed to provide affordable health services to almost 50 million people uninsured by Social Security in Mexico. The evidence so far shows that Seguro Popular has been a very effective tool in reducing catastrophic health expenditures for Mexican families. However, the literature has...

existence of periodic solutions for non-linear third order autonomous differential equation (o.d.e.) has not been investigated to as large an extent as non-linear second order. the popular poincare-bendixon theorem applicable to second order equation is not valid for third order equation (see [3]). this conclusion opens a way for further investigation.

Suppose that each member of a set of agents has a preference list of a subset of houses, possibly involving ties, and each agent and house has their capacity denoting the maximum number of houses/agents (respectively) that can be matched to him/her/it. We want to find a matching M , called popular, for which there is no other matching M ′ such that more agents prefer M ′ to M than M to M ′, sub...

OBJECTIVE To estimate the effect of "Seguro Popular" (SP) on the incidence of catastrophic health expenditure (CHE) and out-of-pocket (OOP) health expenditure in the medium term. MATERIAL AND METHODS We used the 'Encuesta de Evaluación del SP' --SP Survey Evaluation-- (2005-2008). We analyzed the SP effect on the rural cohort during two years of follow-up (2006 and 2008) and in the urban coho...

200 J Fam Plann Reprod Health Care 2012;38:200–201. doi:10.1136/jfprhc-2012-100399 First marriage The divorce of King Henry VIII from his first wife, Catherine of Aragon, has, over the centuries, produced a positive paper storm of academic books and popular works, examination papers and essays. As a subject it has also inspired a number of films and TV documentaries. King Henry posed an argumen...