Dual Isolation to Protect Fragile Lightguide in Augmented Reality Eyewear

Lightguides are used in augmented reality (AR) devices to redirect light to the user\u27s eye. Lightguides are manufactured by singulating dense glass wafers into a large, flat, and thin component that spans the entire clear aperture of the lens. Such lightguides have relatively little protection under a drop or shock load. This disclosure describes a design for AR eyewear in which the fragile component of AR eyewear is protected through two separate layers of isolation from the global deformation and strain experienced under a drop test. A rigid carrier within the outer frame acts as a first layer of isolation for the lightguide and can absorb significant energy. The lightguide is mounted without physical contact between the lightguide and carrier with a well-controlled nominal gap that is filled with an isolation adhesive. The isolation adhesive prevents a hard collision between the lightguide and the carrier during impact or dynamic loading conditions generated by drops

Augmented Reality Glasses that Accommodate a Wide Range of Ophthalmic Prescriptions

Traditional eyewear frames are designed to accommodate a wide range of prescriptions. This includes the ability to include strong corrective lenses of significant thickness. However, augmented reality (AR) glasses with integrated displays can be much more constrained in terms of thickness, weight, and mechanical features since they have to accommodate a much larger number of components. As a result, traditional eyewear lens installation methods and features may not be feasible in AR glasses. This disclosure describes an ophthalmic lens edge profile and frame construction that minimizes mass and volume. The lens edge combined with the frame construction that includes an outer frame, an inner frame, and a step bevel, allows for a slim and compact solution that can accommodate prescription lenses

A driving cessation program to identify and improve transport and lifestyle issues of older retired and retiring drivers

Background: This study explored the transport and lifestyle issues of older retired and retiring drivers participating in the University of Queensland Driver Retirement Initiative (UQDRIVE), a group program to promote adjustment to driving cessation for retired and retiring older drivers

Subduction factory: 4. Depth‐dependent flux of H 2 O from subducting slabs worldwide

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/95328/1/jgrb16727.pd

Conformational Plasticity of proNGF

Nerve Growth Factor is an essential protein that supports neuronal survival during development and influences neuronal function throughout adulthood, both in the central and peripheral nervous system. The unprocessed precursor of NGF, proNGF, seems to be endowed with biological functions distinct from those of the mature protein, such as chaperone-like activities and apoptotic and/or neurotrophic properties. We have previously suggested, based on Small Angle X-ray Scattering data, that recombinant murine proNGF has features typical of an intrinsically unfolded protein. Using complementary biophysical techniques, we show here new evidence that clarifies and widens this hypothesis through a detailed comparison of the structural properties of NGF and proNGF. Our data provide direct information about the dynamic properties of the pro-peptide and indicate that proNGF assumes in solution a compact globular conformation. The N-terminal pro-peptide extension influences the chemical environment of the mature protein and protects the protein from proteolytic digestion. Accordingly, we observe that unfolding of proNGF involves a two-steps mechanism. The distinct structural properties of proNGF as compared to NGF agree with and rationalise a different functional role of the precursor

NuMA Overexpression in Epithelial Ovarian Cancer

Highly aneuploid tumours are common in epithelial ovarian cancers (EOC). We investigated whether NuMA expression was associated with this phenomenon

Conceptualizing leadership perceptions as attitudes:using attitude theory to further the understanding of the relation between leadership and outcomes

Leadership is one of the most examined factors in relation to understanding employee wellbeing and performance. While there are disparate approaches to studying leadership, they share a common assumption that perceptions of a leader's behavior determine reactions to the leader. The concept of leadership perception is poorly understood in most theoretical approaches. To address this, we propose that there are many benefits from examining leadership perceptions as an attitude towards the leader. In this review, we show how research examining a number of aspects of attitudes (content, structure and function) can advance understanding of leadership perceptions and how these affect work-related outcomes. Such a perspective provides a more multi-faceted understanding of leadership perceptions than previously envisaged and this can provide a more detailed understanding of how such perceptions affect outcomes. In addition, we examine some of the main theoretical and methodological implications of viewing leadership perceptions as attitudes to the wider leadership area. The cross-fertilization of research from the attitudes literature to understanding leadership perceptions provides new insights into leadership processes and potential avenues for further research. (C) 2015 Elsevier Inc. All rights reserve

Crop pests and predators exhibit inconsistent responses to surrounding landscape composition

The idea that noncrop habitat enhances pest control and represents a win–win opportunity to conserve biodiversity and bolster yields has emerged as an agroecological paradigm. However, while noncrop habitat in landscapes surrounding farms sometimes benefits pest predators, natural enemy responses remain heterogeneous across studies and effects on pests are inconclusive. The observed heterogeneity in species responses to noncrop habitat may be biological in origin or could result from variation in how habitat and biocontrol are measured. Here, we use a pest-control database encompassing 132 studies and 6,759 sites worldwide to model natural enemy and pest abundances, predation rates, and crop damage as a function of landscape composition. Our results showed that although landscape composition explained significant variation within studies, pest and enemy abundances, predation rates, crop damage, and yields each exhibited different responses across studies, sometimes increasing and sometimes decreasing in landscapes with more noncrop habitat but overall showing no consistent trend. Thus, models that used landscape-composition variables to predict pest-control dynamics demonstrated little potential to explain variation across studies, though prediction did improve when comparing studies with similar crop and landscape features. Overall, our work shows that surrounding noncrop habitat does not consistently improve pest management, meaning habitat conservation may bolster production in some systems and depress yields in others. Future efforts to develop tools that inform farmers when habitat conservation truly represents a win–win would benefit from increased understanding of how landscape effects are modulated by local farm management and the biology of pests and their enemies