A study of dynamics of magma extrusion and investigation of volcanic vapor Final report, 25 Mar. 1966 - 30 Jun. 1967

Modified heat flow model for magma extrusion and volcanic vapo

Delta and gamma oscillations in operculo-insular cortex underlie innocuous cold thermosensation

Cold-sensitive and nociceptive neural pathways interact to shape the quality and intensity of thermal and pain perception. Yet the central processing of cold thermosensation in the human brain has not been extensively studied. Here, we used magnetoencephalography and EEG in healthy volunteers to investigate the time course (evoked fields and potentials) and oscillatory activity associated with the perception of cold temperature changes. Nonnoxious cold stimuli consisting of Δ3°C and Δ5°C decrements from an adapting temperature of 35°C were delivered on the dorsum of the left hand via a contact thermode. Cold-evoked fields peaked at around 240 and 500 ms, at peak latencies similar to the N1 and P2 cold-evoked potentials. Importantly, cold-related changes in oscillatory power indicated that innocuous thermosensation is mediated by oscillatory activity in the range of delta (1–4 Hz) and gamma (55–90 Hz) rhythms, originating in operculo-insular cortical regions. We suggest that delta rhythms coordinate functional integration between operculo-insular and frontoparietal regions, while gamma rhythms reflect local sensory processing in operculo-insular areas

The role of mentorship in protege performance

The role of mentorship on protege performance is a matter of importance to academic, business, and governmental organizations. While the benefits of mentorship for proteges, mentors and their organizations are apparent, the extent to which proteges mimic their mentors' career choices and acquire their mentorship skills is unclear. Here, we investigate one aspect of mentor emulation by studying mentorship fecundity---the number of proteges a mentor trains---with data from the Mathematics Genealogy Project, which tracks the mentorship record of thousands of mathematicians over several centuries. We demonstrate that fecundity among academic mathematicians is correlated with other measures of academic success. We also find that the average fecundity of mentors remains stable over 60 years of recorded mentorship. We further uncover three significant correlations in mentorship fecundity. First, mentors with small mentorship fecundity train proteges that go on to have a 37% larger than expected mentorship fecundity. Second, in the first third of their career, mentors with large fecundity train proteges that go on to have a 29% larger than expected fecundity. Finally, in the last third of their career, mentors with large fecundity train proteges that go on to have a 31% smaller than expected fecundity.Comment: 23 pages double-spaced, 4 figure

Comparing Capitalisms: Debates, Controversies and Future Directions

Various strands of the comparative capitalisms (CC) literature agree that the advanced economies have liberalized in recent years, bringing with it rising income and wealth inequality and job insecurity; although these perspectives differ in important ways, there is much common ground between them to explain this heightened level of inequality and insecurity. Through reviewing contributions to three key CC perspectives since 2007/2008, we argue that they have tended to focus on developments in co-ordinated market economies, leading to a neglect of growing structural crises in liberal market economies, which have contributed to the UK and the US entering uncharted socio-political waters. We extend recent work that emphasizes how variation between countries in labourmarket institutions, different corporate forms and states’ fiscal policies help to explain income and wealth inequality to highlight future research agendas that seek to combine more systematically these institutional areas to explain social inequalities, workers’ experiences and socio-political crises within capitalist systems

Advancing precision public health using human genomics: examples from the field and future research opportunities

Precision public health is a relatively new field that integrates components of precision medicine, such as human genomics research, with public health concepts to help improve population health. Despite interest in advancing precision public health initiatives using human genomics research, current and future opportunities in this emerging field remain largely undescribed. To that end, we provide examples of promising opportunities and current applications of genomics research within precision public health and outline future directions within five major domains of public health: biostatistics, environmental health, epidemiology, health policy and health services, and social and behavioral science. To further extend applications of genomics within precision public health research, three key cross-cutting challenges will need to be addressed: developing policies that implement precision public health initiatives at multiple levels, improving data integration and developing more rigorous methodologies, and incorporating initiatives that address health equity. Realizing the potential to better integrate human genomics within precision public health will require transdisciplinary efforts that leverage the strengths of both precision medicine and public health

Far infrared spectra of silicate minerals for use in remote sensing of lunar and planetary surfaces Final report, Apr. 1965 - Apr. 1966

Far infrared spectra of silicate materials for remote sensing of lunar or planetary surface compositio

Unveiling the relationship between e-HRM, impersonal trust and employee productivity

Purpose This study draws upon social exchange theory to explore the role of impersonal trust as an intermediate value-creating factor between electronic human resource management (e-HRM) and productivity. The purpose of this paper is to seek the antecedents and consequences of impersonal trust within organisations to provide a holistic view of e-HRM and employee productivity. This is the first study to examine how impersonal trust mediates the relationship between e-HRM and employee productivity. Design/methodology/approach The data were collected through a large-scale survey of 700 line managers in Pakistani banks. The data were analysed using structure equation modelling. Findings The empirical results validate all of the study’s hypotheses, including the role of impersonal trust, which partially mediates the relationship between e-HRM and employee productivity. The results provide empirical evidence that technology-enabled HRM supports organisations by enhancing organisational trust and productivity outcomes. Originality/value Such findings contribute to the HRM literature: e-HRM and organisational trust are key predictors for improving employee productivity. The existing literature suggests that e-HRM has a positive impact on employees’ trust in the HRM department. The results provide valuable insights for HR practitioners allowing them to enhance employee productivity by using e-HRM to improve employees’ trust in the organisation

A closer look at chaotic advection in the stratosphere: part II: statistical diagnostics

Statistical diagnostics of mixing and transport are computed for a numerical model of forced shallow-water flow on the sphere and a middle-atmosphere general circulation model. In particular, particle dispersion statistics, transport fluxes, Liapunov exponents (probability density functions and ensemble averages), and tracer concentration statistics are considered. It is shown that the behavior of the diagnostics is in accord with that of kinematic chaotic advection models so long as stochasticity is sufficiently weak. Comparisons with random-strain theory are made

Heritability of Lumbar Trabecular Bone Mechanical Properties in Baboons

Genetic effects on mechanical properties have been demonstrated in rodents, but not confirmed in primates. Our aim was to quantify the proportion of variation in vertebral trabecular bone mechanical properties that is due to the effects of genes. L3 vertebrae were collected from 110 females and 46 male baboons (6–32 years old) from a single extended pedigree. Cranio-caudally oriented trabecular bone cores were scanned with microCT then tested in monotonic compression to determine apparent ultimate stress, modulus, and toughness. Age and sex effects and heritability (h2) were assessed using maximum likelihood-based variance components methods. Additive effects of genes on residual trait variance were significant for ultimate stress (h2 = 0.58), toughness (h2 = 0.64), and BV/TV (h2 = 0.55). When BV/TV was accounted for, the residual variance in ultimate stress accounted for by the additive effects of genes was no longer significant. Toughness, however, showed evidence of a non-BV/TV-related genetic effect. Overall, maximum stress and modulus show strong genetic effects that are nearly entirely due to bone volume. Toughness shows strong genetic effects related to bone volume and shows additional genetic effects (accounting for 10% of the total trait variance) that are independent of bone volume. These results support continued use of bone volume as a focal trait to identify genes related to skeletal fragility, but also show that other focal traits related to toughness and variation in the organic component of bone matrix will enhance our ability to find additional genes that are particularly relevant to fatigue-related fractures