162,045 research outputs found
The descending limb of the sarcomere length-force relation in single muscle fibres of the frog.
Single muscle fibres, isolated from the tibialis anterior muscle of the frog, were used to study intersarcomere dynamics during muscle-isometric (fixed-end) tetani at long sarcomere lengths. Sarcomere length was measured by an online laser diffraction technique. On the descending limb of the length-force relation, the slow rise of force (creep) was always associated with changes in sarcomere length. Sarcomeres at the ends of the fibres shortened, while those of the central 90\% of the fibre length were stretched. Fibres were found to have a range of passive length-force curves, those with high resting forces developed little creep force, while low resting force fibres developed substantial creep, resulting in a fixed-end sarcomere length-force relation which deviated greatly from that expected from crossbridge theory. These differences in creep force can be qualitatively accounted for by differences in sarcomere dynamics. The simultaneous measurement of force and sarcomere length during force development allows the construction of a 'sarcomere-isometric' length-force curve from minima in the sarcomere length record. Force declined linearly from a plateau at 2.2 microns to zero at a sarcomere length close to 3.65 microns. The online, diffraction-derived sarcomere length was used in a feedback loop to clamp sarcomere length in short (100-200 microns) segments of fibres. A length-force curve constructed from sarcomere length-clamped tetani shows a linear decline in force from a plateau at 2.2 microns to zero at a sarcomere length of 3.65 microns
[Report to Chief J. E. Curry, by an unknown author #1]
Report to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
[Report to Chief J. E. Curry, by an unknown author #2]
Report to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
Murder on the mountain: author talk with Peter J. Wosh
Author talk by Peter J. Wosh on May 5th, 2022, on his book, "Murder on the Mountain: crime, passion, and punishment in gilded age New Jersey.
Mr. Melvin J. Collier, RWWL AUC, June 2011
This video is a conversation with Mr. Melvin J. Collier. Mr. Collier talks about his book, "From Mississippi to Africa: A Journey of Discovery". Daniel Le, AUC Woodruff Library, is the interviewer
2. Bat Conservation
Expert assessors John Altringham, University of Leeds, UK James Aegerter, Animal and Plant Health Agency, UK Kate Barlow, Bat Conservation Trust, UK Anna Berthinussen, University of Leeds, UK Fabio Bontadina, SWILD — Urban Ecology & Wildlife Research, Switzerland David Bullock, National Trust, UK Paul Cryan, Fort Collins Science Center, US Geological Survey Brock Fenton, University of Western Ontario, Canada Anita Glover, University of Leeds, UK Joanne Hodgkins, National Trust, UK David Jacob..
A Tripartite Post-Recession Rebalancing
In this latest Advance & Rutgers Report, entitled “A Tripartite Post-Recession Rebalancing,” Dean James W. Hughes and Professor Joseph J. Seneca deliver an incisive assessment of the current market conditions and obstacles in the path of our economic recovery. They offer a statistical cautionary tale that the private and public sector need to hear and acknowledge in order for the economy to make continued progress.This report was published as Issue Paper Number 7, November 2011, in Advance & Rutgers Report
Evidence for the decay B0→J/ψω and measurement of the relative branching fractions of meson decays to J/ψη and J/ψη′
First evidence of the B 0 → J / ψ ω decay is found and the B s 0 → J / ψ η and B s 0 → J / ψ η ′ decays are studied using a dataset corresponding to an integrated luminosity of 1.0 fb -1 collected by the LHCb experiment in proton-proton collisions at a centre-of-mass energy of sqrt(s) = 7 TeV. The branching fractions of these decays are measured relative to that of the B 0 → J / ψ ρ 0 decay:frac(B (B 0 → J / ψ ω), B (B 0 → J / ψ ρ 0)) = 0.89 ± 0.19 (stat) - 0.13 + 0.07 (syst),frac(B (B s 0 → J / ψ η), B (B 0 → J / ψ ρ 0)) = 14.0 ± 1.2 (stat) - 1.5 + 1.1 (syst) - 1.0 + 1.1 (frac(f d, f s)),frac(B (B s 0 → J / ψ η ′), B (B 0 → J / ψ ρ 0)) = 12.7 ± 1.1 (stat) - 1.3 + 0.5 (syst) - 0.9 + 1.0 (frac(f d, f s)), where the last uncertainty is due to the knowledge of f d / f s, the ratio of b-quark hadronization factors that accounts for the different production rate of B 0 and B s 0 mesons. The ratio of the branching fractions of B s 0 → J / ψ η ′ and B s 0 → J / ψ η decays is measured to befrac(B (B s 0 → J / ψ η ′), B (B s 0 → J / ψ η)) = 0.90 ± 0.09 (stat) - 0.02 + 0.06 (syst)
The vanishing author in computer-generated works: a critical analysis of recent Australian case law
Abstract
The use of software is ubiquitous in the creation of many copyright works, yet the requirement in copyright law that every work have a human author who engages in independent intellectual effort means that its use may prevent copyright subsistence. Several recent Australian cases have refocused attention on authorship as an essential criterion of copyright subsistence, and these cases suggest that much computer-produced output may be authorless and thus lack copyright protection. This article, the first in a two-part series, analyses how each case deals with the question of authorship of computer-produced works and why the use of software diminishes copyright protection for a significant number of computer-generated works. The article critiques the application of conventional notions of human authorship developed in the pre-computer age to modern productions and suggests alternative approaches to authorship that satisfy both the major objectives of copyright policy and the need to adapt to the computer age. The article argues that, without a broader judicial approach to authorship of computer-generated works, Parliament must remedy the lacuna in protection for these ‘authorless’ works. Possible solutions for reform are suggested. In a forthcoming article, the author comprehensively examines those reform proposals
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