1,232,809 research outputs found
Social physique anxiety, pregnancy and exercise : a thesis presented in partial fulfilment of the requirements for the degree of Master of Arts in Psychology at Massey University
The purpose of this study was to examine SPA and exercise during and after pregnancy. Women enrolled in community ante-natal classes participated in the investigation (Exercisers n = 36; Non-exercisers n = 17). Participants completed the Social Physique Anxiety Scale (SPAS), Reasons for Exercise Inventory (REI), Exercise Behaviours and Preferences Scale and a modified Body Esteem Scale, and provided general demographic and exercise data during pregnancy and 6 weeks and 3 months post-pregnancy. Repeated measures ANOVA indicated that participant reasons for exercise changed significantly over the course of pregnancy from intrinsic to extrinsic, reflecting self-presentational motives. SPA has been found to be positively related to self-presentational motives in previous research, although significant results were not replicated in this study
Mechanics and force transmission in soft composites of rods in elastic gels
We report detailed theoretical investigations of the micro-mechanics and bulk
elastic properties of composites consisting of randomly distributed stiff
fibers embedded in an elastic matrix in two and three dimensions. Recent
experiments published in Physical Review Letters [102, 188303 (2009)] have
suggested that the inclusion of stiff microtubules in a softer, nearly
incompressible biopolymer matrix can lead to emergent compressibility. This can
be understood in terms of the enhancement of the compressibility of the
composite relative to its shear compliance as a result of the addition of stiff
rod-like inclusions. We show that the Poisson's ratio of such a composite
evolves with increasing rod density towards a particular value, or {\em fixed
point}, independent of the material properties of the matrix, so long as it has
a finite initial compressibility. This fixed point is in three
dimensions and in two dimensions. Our results suggest an important
role for stiff filaments such as microtubules and stress fibers in cell
mechanics. At the same time, our work has a wider elasticity context, with
potential applications to composite elastic media with a wide separation of
scales in stiffness of its constituents such as carbon nanotube-polymer
composites, which have been shown to have highly tunable mechanics.Comment: 10 pages, 8 figure
THE IMPACT OF REGULATION ON THE DEVELOPMENT OF NEW PRODUCTS IN THE FOOD INDUSTRY
Paper prepared for presentation at the 8th ICABR International Conference on Agricultural Biotechnology: International Trade and Domestic Production Ravello (Italy), July 8 to 11th, 2004Food industry, Regulation, Innovation, Biotechnology, Organic food, Functional Food, European Union, United States, Industrial Organization, L5, L66, O32,
Few-mode fibers and AO-assisted high resolution spectroscopy: coupling efficiency and modal noise mitigation
NIRPS (Near Infra-Red Planet Searcher) is an AO-assisted and fiber-fed
spectrograph for high precision radial velocity measurements that will operate
in the YJH-bands. While using an AO system in such instrument is generally
considered to feed a single-mode fiber, NIRPS is following a different path by
using a small multi-mode fiber (more specifically called "few-mode fiber").
This choice offers an excellent trade-off by allowing to design a compact
cryogenic spectrograph, while maintaining a high coupling efficiency under bad
seeing conditions and for faint stars. The main drawback resides in a much more
important modal-noise, a problem that has to be tackled for allowing 1m/s
precision radial velocity measurements. We study the impact of using an AO
system to couple light into few-mode fibers. We focus on two aspects: the
coupling efficiency into few-mode fibers and the question of modal noise and
scrambling. We show first that NIRPS can reach coupling >= 50% up to magnitude
I=12, and offer a gain of 1-2 magnitudes over a single-mode solution. We
finally show that the best strategy to mitigate modal noise with the AO system
is among the simplest: a continuous tip-tilt scanning of the fiber core.Comment: 10 pages, 5 figures. Proceeding of the AO4ELT5 conferenc
The influence of strategic patenting on companies' patent portfolios
This paper analyses whether strategic motives for patenting influence the characteristics of companies' patent portfolios. We use the number of citations and oppositions to represent these characteristics. The investigation is based on survey and patent data from German companies. We find clear evidence that the companies' patenting strategies explain the characteristics of their patent portfolios. First, companies using patents to protect their technological knowledge base receive a higher number of citations for their patents. Second, the motive of offensive - but not of defensive - blocking is related to a higher incidence of oppositions, whereas companies using patents as bartering chips in collaborations receive fewer oppositions to their patents. --strategic patenting,patent portfolio characteristics
The Influence of Strategic Patenting on Companies' Patent Portfolios
This paper analyses whether strategic motives for patenting influence the characteristics of companies' patent portfolios. We use the number of citations and oppositions to represent these characteristics. The investigation is based on survey and patent data from German companies. We find clear evidence that the companies' patenting strategies explain the characteristics of their patent portfolios. First, companies using patents to protect their technological knowledge base receive a higher number of citations for their patents. Second, the motive of offensive – but not of defensive – blocking is related to a higher incidence of oppositions, whereas companies using patents as bartering chips in collaborations receive fewer oppositions to their patents. --strategic patenting,patent portfolio characteristics
La th\'eorie des invariants des formes quadratiques ternaires revisit\'ee
The simultaneous invariants of 2, 3, 4 and 5 ternary quadratic forms under
the group \SL(3, {\Bbb C}) were given by several authors (P. Gordan, C.
Ciamberlini, H.W. Turnbull, J.A Todd), utilizing the symbolic method. Using the
Jordan algebra structure of the space of ternary quadratic forms, we give these
invariants explicitely
- …