Munchausen by internet: current research and future directions.

The Internet has revolutionized the health world, enabling self-diagnosis and online support to take place irrespective of time or location. Alongside the positive aspects for an individual's health from making use of the Internet, debate has intensified on how the increasing use of Web technology might have a negative impact on patients, caregivers, and practitioners. One such negative health-related behavior is Munchausen by Internet

Plastic behaviour of CuAl 2

The plastic behaviour of CuAl 2 was studied by compression testing of single crystals and polycrystals in the temperature range 300–575 °C. While single crystals were grown from the melt by the Bridgeman technique, ingot and powder metallurgy routes were adopted for polycrystalline specimens. In addition to exploring their flow behaviour, the deformation mechanism was assessed through thermal activation analysis. It was observed that CuAl 2 failed in a brittle manner in compression below 375 °C and its ductility improved progressively with temperature. The brittle-ductile transition (BDT) temperature was influenced by the initial dislocation density but not by the grain size. The strong temperature dependence of flow stress and grain size strengthening effect as per the Hall-Petch relation, were dominant up to nearly the melting temperature of CuAl 2 . The measured activation parameters for deformation suggest that the Peierls mechanism is rate controlling over the investigated temperature range.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/44716/1/10853_2005_Article_BF01119763.pd

Masculinity—Femininity

Six areas of research in developmental and personality psychology concerning sex-typed traits, attitudes, and interests are identified as elements of a common “masculinity-femininity” paradigm needing reexamination. The masculinity-femininity paradigm is defined in relationship to Money and Ehrhardt's model for gender identity differentiation and dimorphism. The six lines of research in the masculinity-femininity paradigm are then briefly critically examined: (1) the measurability of masculinity-femininity as a trait, (2) the identification model of masculinity-femininity development, (3) the effects of father absence on boys, (4) correlates of masculinity-femininity in life adjustment, (5) cross-sex identity in males, and (6) sex role identity problems in black males. The empirical and conceptual problems in each line of research are explored, and are substantial enough to suggest the need for alternate paradigms. Two alternate models for masculinity-femininity development are briefly sketched. First, masculinity-femininity development is analogized to moral development, as a phasic process ideally leading to sex role transcendence and androgyny. Second, the acquisition of masculinity-femininity is analogized to language acquisition, as a highly symbol-dependent learning process contingent upon the interaction between an innate acquisition apparatus and a corpus of observed sex role behavior.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/45567/1/11199_2004_Article_BF00288009.pd

Stress relaxation in thoriated nikel alloys

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