‘Age-hardened alloy’ based on bulk polycrystalline oxide ceramic

We report here for the first time the development of ‘age-hardened/toughened’ ceramic alloy based on MgO in the bulk polycrystalline form. This route allows for the facile development of a ‘near-ideal’ microstructure characterized by the presence of nanosized and uniformly dispersed second-phase particles (MgFe₂O₄) within the matrix grains, as well as along the matrix grain boundaries, in a controlled manner. Furthermore, the intragranular second-phase particles are rendered coherent with the matrix (MgO). Development of such microstructural features for two-phase bulk polycrystalline ceramics is extremely challenging following the powder metallurgical route usually adopted for the development of bulk ceramic nanocomposites. Furthermore, unlike for the case of ceramic nanocomposites, the route adopted here does not necessitate the usage of nano-powder, pressure/electric field-assisted sintering techniques and inert/reducing atmosphere. The as-developed bulk polycrystalline MgO–MgFe₂O₄ alloys possess considerably improved hardness (by ~52%) and indentation toughness (by ~35%), as compared to phase pure MgO.     

Privacy of Moral Perspective

Journal of Indian Council of Philosophical Research - This paper attempts to delve into Wittgenstein’s unique notion of solipsism and its centrality in his proposal of transcendental ethics....     

Inflammation in white matter: clinical and pathophysiological aspects

While the central nervous system (CNS) is generally thought of as an immunopriviledged site, immune-mediated CNS white matter damage can occur in both the perinatal period and in adults, and can result in severe and persistent neurological deficits. Periventricular leukomalacia (PVL) is an inflammatory white matter disease of premature infants that frequently results in cerebral palsy (CP). Clinical and experimental studies show that both hypoxic/ischemic and innate immune mechanisms contribute to the destruction of immature oligodendroglia and of axons in the deep cerebral white matter in PVL. No data are yet available as to whether there is any genetic predisposition to PVL or to its neurological sequelae. Multiple sclerosis (MS) is an inflammatory white matter disease that often begins in young adulthood, causes multifocal destruction of mature oligodendroglia and of axons, and eventually leads to substantial cumulative neurological disability. Certain genetic polymorphisms contribute to susceptibility to MS, and adaptive immune responses to myelin-associated self antigens, or to exogenous antigens that mimic these self antigens, play a central role in the pathophysiology of this disease.     

A qualitative examination of the relationships that serve a mentoring function for Mexican American older adolescents

This exploratory study was an in-depth examination of Mexican American adolescents' relationships with nonparental adults. Qualitative interviews with 10 Mexican American adolescents revealed 23 nonparental adults who served a mentoring function in their lives. Six of these nonparental adults were also interviewed. Data analyses were conducted using a grounded theory approach so that the relationships were described in participants' words and experiences. The nonparental adults identified by adolescents included siblings, extended family members, older peers, and institutional figures. The support provided took many different forms, from emotional to informational/experiential support, to modeling behavior, for example. Further, adolescents were supported in eight different areas of their lives. Participants also discussed the perceived benefits of these relationships for adolescents. Future research directions and implications for youth programming are discussed.     

Enabling a man with multiple disabilities and limited motor behavior to perform a functional task with help of microswitch technology

This study evaluated the extent to which two microswitches used as interfaces would enable a man with multiple disabilities and limited motor behavior to operate an electric door opener at the entrance of the day center that he attended. Analysis showed the man (a) learned to use the two microswitches, (b) preferred the microswitch placed at his wheelchair's footrest (which also allowed more effective responding) over the microswitch placed at his wheelchair's armrest, and (c) maintained his positive performance at the 1- and 2-mo. postintervention checks. The results were discussed from a technical and practical standpoint and in terms of implications for the quality of life of persons with disabilities.     

An exploration of the Indian mindset

Eight hundred and twenty-nine adults, drawn from 12 locations in all four parts of India, participated in a study that explored the joint effects of Indians’ discrepant mindset, context sensitivity, and quality of environment on their modes of behavior. Respondents also predicted how a person is likely to change his behavior when the conditions in which he works change from disabling to enabling. The findings showed that the two most dominant modes of behavior-self-serving calculative and achieving high positive goal — coexisted, but were differently caused. Context sensitivity facilitated both modes of behavior; but adequate infrastructure and friendly and helpful people in the neighborhood encouraged only achieving high positive goal behavior. On the contrary, duplicity in professing desirable but acting under realistic compulsions, poor quality of environment, and low levels of development were conducive to self-serving calculative behavior. As a situation changed from disabling to enabling, a person was likely to shift towards more positive behavior.     

Empirical validation of values in action-inventory of strengths (VIA-IS) in Indian context

This study uses self-report measures completed by one hundred and twenty three (123) undergraduate technology students to investigate the validity of Peterson and Seligman’s (2004) classification system of 24 character strengths embodied in six core virtues. Using exploratory factor analyses we found, that an exact convergence of the character strengths was explicitly absent with the six-virtues. In our study, a five-factor solution was more comprehensive and well representing the resultant factor loadings upon analyzing the data which is further compared to a similar empirical study available for analyzing structural dynamics. In this paper, we have discussed the five-factor solution and renamed the dimensions to show a legitimate picture of the classification system, which requires further justification, and in addition, advocates reanalysis and reinterpretation of the originally propounded values in action (VIA) classification as a recommendation for future research.