Traumatic bilateral vertebral artery dissection

Traumatic vertebral artery dissection is not often seen by forensic pathologists, and cases investigated are scarce in the forensic literature. We present the case of a 40-year-old woman cyclist who was struck by a car while wearing a helmet, and was neurologically near normal immediately thereafter at Emergency. She presented 48 h later with acute right hemiparesis, decreasing level of consciousness, and unsteadiness. CT revealed massive cerebellar infarction. CT angiography was normal. The patient died in coma 7 days after injury and autopsy revealed bilateral edematous cerebellar infarction and bilateral vertebral artery dissection. Rotational neck injury and mural tear in the wall of the Atlantic parts of both vertebral arteries is suggested as the possible mechanism of the arterial injury. Head and neck injuries are reported as a precipitating cause of vertebral artery injury. The possible influence of trauma may be further underestimated if longer intervals between vessel dissection and ischemia occur. The current case illustrates that "talk-and-die" syndrome may be due to occult vertebral artery dissection, possibly bilateral. In forensic cases of delayed death after mild trauma to the head and neck, the vertebral arteries should be examined for the cause of death.     

Identifying deviant sexual interest in a sex offender sample using dual-target rapid serial visual presentation task

To investigate the dual-target rapid serial visual presentation (dtRSVP) task as a measure of deviant sexual interest (i.e. a sexual interest in children), we administered a dtRSVP with gender- and age-specific pictorial stimuli to child sex offenders (n = 69), other sex offenders (n = 43), non-sex offenders (n = 14), and community controls (n = 88). We hypothesized that (1) stimuli belonging to the preferred gender and age group presented as targets (both T1 and the subsequent T2) in the serial sequence would be more accurately detected than non-preferred stimuli and that (2) this increased detection would reduce the detection of targets later in the serial sequence (T2) due to an attentional blink. Our findings supported hypothesis 1 and partly supported hypothesis 2. Although we found group differences, individual indices based on detection rates did not allow for individual-level diagnostic categorization of participants.     

Current strategic approaches for the detection of blood doping practices

Aerobic sport performance may be strongly influenced by the number of red blood cells available for transport and delivery of oxygen from lungs to muscles. Often, athletes search for an acute increase in red blood cells by means of blood transfusions. This paper reviews the possibilities for detecting such prohibited practice. Flow cytometry methods are able to detect a double population of red blood cell membrane surface antigens, thus revealing an allogeneic transfusion. Other ingenious approaches for total hemoglobin mass measurements or to test for the metabolites of blood bag plasticizers in urine are new trends for facing the detection of autologous transfusions. Steady increase of red blood cell number may be obtained also by erythropoietic stimulant agents such as erythropoietin, analogs and mimetics. The challenge of detecting those substances has stimulated the development of indirect markers of altered erythropoiesis, leading to the consequent development of the hematological blood passport approach, which is gaining legal acceptance.     

Mergers and difference-in-difference estimator: Why firms do not increase prices?

Difference-in-difference methods are being increasingly used to analyze the impact of mergers on pricing and other market equilibrium outcomes. Using evidence from an exogenous merger between two retail gasoline companies in a specific market in Spain, this paper shows how concentration did not lead to a price increase. In fact, the conjectural variation model concludes that the existence of a collusive agreement before and after the merger accounts for this result, rather than the existence of efficient gains. This result may explain empirical evidence reported in the literature according to which mergers between firms do not have significant effects on prices.     

Institutionalising Gender Equality in Spain: From Party Quotas to Electoral Gender Quotas

This article accounts for the particular steps Spain took to institutionalise gender equality in political representation. While some West European countries, where the ‘incremental track’ was considered too slow or too ineffective, recently shifted to the ‘fast track’ (notably, Belgium, France, Italy and Portugal), Spain adopted a legislative quota in 2007, when women's representation had already reached very high levels. Indeed, 10 years earlier, the quotas adopted by left-wing Spanish parties in the late 1980s had already reached parity and triggered a contagion effect within the party system. Comparatively speaking, Spain has followed the incremental track in a narrow time frame since democracy was restored in 1978. Finally, although the legal quota reform encountered political and juridical opposition, Spain managed to introduce it without the need for constitutional reform.     

Y-chromosome polymorphism data in Majorcan, Minorcan and Valencian populations (eastern Spain).

Frequency data of the six STRs: (1) DYS19; (2) DYS389I; (3) DYS389II; (4) DYS390; (5) DYS391 and (6) DYS393, and the DYS287 polymorphism (YAP) were determined in a sample of 117 unrelated males from three eastern Spanish populations: 53 from Majorca, 40 from Minorca and 24 from Valencia.     

Sharecropping and the management of large rural estates in Catalonia, 1850–1950

This article examines the role of sharecropping in the operation of great estates in Catalonia (Spain) from the mid‐nineteenth to the mid‐twentieth century. Noting that the sharecropping option was not the fruit of inertia, but of the failure of alternatives, we look at the various factors which led to its predominance. Next, we show the adaptability of sharecropping to a variety of ecological and social contexts. Finally, we argue that the backwardness of Catalan agriculture is not to be attributed to sharecropping, which, on the contrary, proved comparable to other forms of tenure in terms of economic efficiency, and was also a successful instrument for the reproduction of social inequalities and labour exploitation.