L’essai d'AlbinoLanciani s'intitule « phénoménologie et sciences cognitives » mais l’on se serait satisfait d’un tout autre titre : « phénoménologie versus sciences cognitives », ou peut-être même plus légitimement, « AlbinoLanciani contre les sciences cognitives ». Il ne s’agit en effet pas là d’une simple revue des points de désaccord entre approches cognitiviste et phénoménologique, mais d’un véritable bombardement du champ cognitiviste d’où la réflexion phénoménologique semble totalemen..
The electron is considered as a massless point-particle which moves in a spacetime with (3+3) dimensions subjected to a field that attracts it towards the (3+1) standard spacetime. This field is assumed to be described by the radial time component of the e.m. 6-potential and to be due to the vacuum polarization arising when the charge of the electron is removed from the (3+1) spacetime. The pertinent Klein-Gordon equitation in 6 dimensions is solved and the right values for the electron (...) magnetic moment and spin are derived. The rest mass of the electron, as it appears in the standard (3+1) spacetime, is obtained as an integration constant from the motion in the two extra time dimensions. The very simple form assumed as a first approximation for the attractive potential does not give quantized rest masses. (shrink)
The aim of this cross-sectional study was to investigate beliefs, attitudes and reproductive behaviours in relation to consanguinity in a population living in the backlands of north-eastern Brazil. Data were collected by face-to-face interview from 147 high school students aged 13–20 years and from 532 elderly individuals aged 60 years and over from Brejo dos Santos in the state of Paraíba in 2017. The frequency of consanguineous marriage was found to have increased over the generations, being 15.9% in the parents (...) of the elderly participants, 17.1% in the elderly participants themselves and 20.5% in their descendants. Although 258 of the elderly interviewees opposed consanguineous union, 341 would approve of the marriage of their children with relatives. Both the young and elderly interviewees believed that consanguineous marriages were no more durable than non-consanguineous marriages. Additionally, 408 of the elderly individuals and 108 of the students recognized that spouses in consanguineous unions experience conflicts, just like other couples do. In both groups, the majority of the participants did not believe that consanguinity increased the risk of having children with disabilities. The regression of the two continuous variables ‘age’ and ‘positive attitudes score’ showed a significant correlation, suggesting that younger individuals are more susceptible to the influence of cultural factors contributing to consanguinity, such as the opinions of their parents and grandparents. The belief that consanguineous unions are more durable showed a significant difference between elderly individuals in consanguineous and non-consanguineous unions ; the former were 2.42 more likely to believe that marriages between relatives contributes to marriage durability. (shrink)
In America by the 1930s, albino rats had become a kind of generic standard in research on physiology and behavior that de-emphasized diversity across species. However, prior to about 1915, the early work of many of the pioneer rat researchers in America and in central Europe reflected a strong interest in species differences and a deep regard for diversity. These scientists sought broad, often medical, generality, but their quest for generality using a standard animal did not entail a de-emphasis (...) of organic diversity. They chose white rats as test animals for two primary reasons. First, rats develop very slowly. They therefore made features of physiological, neural and psychological development accessible to the experimental method at a time when its application to the phenomena of development remained controversial. Secondly, rats were thought to have unusually strong sex drives. For this reason they became central to the experimental study of sexuality and, in the work of the reproductive physiologist Eugen Steinach, sexual development. Connections among three research institutes that stressed experimental approaches to the study of brain and development demonstrate the importance of the rat's institutional role. As the emphasis on experimentation in the study of development grew, two of these institutes bred rats to provide uniform materials. Eventually, however, their reasons for selecting rats were lost; and the ready availability of a uniform test animal led to a shift in scientists' presumptions about diversity, as the standard rat became a tool for assuring generality. (shrink)