Application of Mathematical Methods for Decision-making to Teenage Pregnancies, Sexual Activity, and Sex Education

The object of this paper is to determine, using mathematical methods for decision-making, whether sex education is an appropriate policy instrument to reduce teenage pregnancies. The exercise helps to clarify the issues involved and the data needed to reach conclusions based on fact, and suggests some preliminary recommendations.     

Political interference and regulatory resilience in Brazil

Governments face a fundamental tradeoff between regulatory independence and control. Attempts of interference have the effect of reducing the system's level of commitment and credibility. On the other hand, an administration runs the risk that the autonomy delegated to regulators might be used to pursue outcomes that may harm their interests. This tradeoff is particularly relevant when there is an alternation of power with the arrival of a new political elite with different preferences. This paper uses data from a 2016 survey on regulatory governance applied to Brazilian regulatory agencies. This data is compared to a similar survey performed in 2005. The new survey results turn out to be surprisingly similar to those of a decade earlier, suggesting strong resilience of regulatory agencies despite significant attempts at political interference by powerful presidents. The factors explaining the resilience of regulatory governance in Brazil lie in its broader institutional endowment, which moderates the effects of executive interference.     

Spanish Translations of Miranda Warnings and the Totality of the Circumstances

Spanish-translated Miranda warnings are administered annually to thousands of Hispanic custodial suspects. In examining 121 Spanish translations and their English counterparts from 33 states, the lengths of Miranda warnings were generally comparable but marked differences were observed in the reading levels for individual Miranda components. The adequacy of Miranda translations varies markedly from minor variations to substantive errors. The most serious problems involved the entire omission of Miranda components; several omissions were observed in the Spanish translations for even the basic rights to silence and counsel. More commonly, Miranda discrepancies involved dissimilar content with a substantial trend toward more information in English than Spanish versions. Findings related to the Miranda translations, different word lengths, and varied reading levels are discussed using the totality of circumstances as its framework.

Analyzing Brazilian vehicle documents for authenticity by easy ambient sonic-spray ionization mass spectrometry

Using desorption/ionization techniques such as easy ambient sonic-spray ionization mass spectrometry (EASI-MS), it is possible to analyze documents of Brazilian vehicles for authenticity, providing a chemical profile directly from the surface of each document. A method for the detection of counterfeit documents is described, and the falsification procedure is elucidated. Forty authentic and counterfeit documents were analyzed by both positive and negative ion modes, EASI(±)-MS. EASI(+)-MS results identified the presence of (bis(2-ethylhexyl)phthalate plasticizer and of dihexadecyldimethylammonium biocide in both types of documents. For EASI(-)-MS results, the 4-octyloxybenzoic acid additive ([M + H](+): m/z 249) is present only in counterfeit documents. It was also found that counterfeit vehicle documents are produced via Laserjet printers. Desorption/ionization techniques, such as EASI-MS, offer therefore, an intelligent way to characterize the counterfeiting method.     

The 2015 Spanish election: the times they are a’ changing

The Spanish legislative election of 2015 speaks of change. This is the end of the traditional two-party system and the beginning of a new political era marked by institutional renewal. The Socialist Party and the Partido Popular have both lost significant parliamentary force, whereas two new parties (Podemos, and Ciudadanos) are now crucial to ensure stable government majorities. This new parliamentary scenario seems to better mirror the political pluralism of a changing society which has already demonstrated for change in striking events such as the 15-M Movement. However, political parties are far from showing conciliatory aspirations, possibly because a new election is suddenly a realistic option. This report outlines the political context of the election, indicates the main topics during the campaign and discusses the results.     

La descentralización de los procesos de selección de candidatos en los partidos y su impacto en la nominación de mujeres en los Congresos Estatales de México

The analysis of state democratization includes recent studies of the methods by which political parties are selected, and their possible effect on the political participation of women. Considering the renewal of Mexican federalism, which took place since the dismantling of the presidential regime at the end of the 1990s, this article brings together issues of decentralization and party nomination processes, as well as “selectorate agencies” and the formal institutions that limit them in order to question the effect of the combined presence of these factors on women’s political participation patterns. The article analyzes local election data from twelve states in Mexico, focusing on the period 1998 to 2012. The evidence reveals that in the case of Mexico, decentralization has had no effect on nominations made by a relative majority. Furthermore, it suggests that centralization in decision-making is an important factor in achieving the nomination of more women based on the principle of proportional representation.     

Presentation of this Special Issue

It may be possible to trace the origins of the sexual revolution of the 1960s and 1970s back to Sigmund Freud's psychoanalytic theories, changes in the social structure (in particular with respect to women working at home and outside the home), and, later, to the ready availability of contraceptives. This revolution brought about changes not only in the sexual behavior of men and women of all ages, but also in the characteristics and stability of families. It also resulted in a more open attitude toward sex in society as a whole and in mass media in particular.     

Problem solving and youth violence: an evaluation of the Boston Gun Project

The Boston Gun Project is a problem-solving policing initiativeaimed at reducing homicide victimization among young peoplein the city of Boston. It represented an innovative partnershipbetween researchers and practitioners to assess the city's youthhomicide problem and implement an intervention intended to havepowerful impacts in the near term. In early 1996, a workinggroup representing a variety of law enforcement and social serviceagencies implemented an intervention that strategically respondedto gang violence, focused enforcement efforts on gun trafficking,and emphasized communication of the strategy to generate deterrence.The intervention is associated with a 60% decline in youth homicidevictimization (i.e., two fewer victims per month). There aresmaller declines in other measures of violence. The declinein youth homicide is sharp and occurs coincident with the introductionof the intervention. Competing hypotheses appear unable to accountfor the decline.