The Bait Purse-seine Fishery for Atlantic Menhaden, Brevoortia tyrannus, in the Virginia Portion of Chesapeake Bay

Through the mid 1990’s, the bait purse-seine fishery for Atlantic menhaden, Brevoortia tyrannus, in the Virginia portion of Chesapeake Bay was essentially undocumented. Beginning in 1995, captains of Virginia bait vessels maintained deck logs of their daily fishing activities; concurrently, we sampled the bait landings for size and age composition of the catch. Herein, we summarize 15 years (1995–2009) of data from the deck logbooks, including information on total bait landings by purse seine, proportion of fishing to nonfishing days, proportion of purse-seine sets assisted by spotter pilots, nominal fishing effort, median catches, and temporal and areal trends in catch. Age and size composition of the catch are described, as well as vessel and gear characteristics and disposition of the catch

Effect of heat treatment on stiffness and damping of SiC/Ti-15-3

The effect of heat treatment on material properties of SiC/Ti-15-3 was measured by vibration tests. Heat treatment changes the microstructure, which was found to stiffen the matrix and reduce its damping capacity. Test results indicate how these changes in the matrix affect the corresponding properties of the composite. Measurements show that heat treatment affects damping properties of the composite to a greater extent than stiffness properties. The extent of change in mechanical properties is shown to depend on heat treatment temperature and exposure time

Evaluation of thermal and mechanical loading effects on the structural behavior of a SiC/titanium composite

Composite specimens of titanium-15-3 matrix reinforced with continuous SCS-6 silicon carbide fibers were tested under a variety of thermal and mechanical loadings. A combined experimental/finite element approach was used to estimate the effective in-situ modulus of the matrix material and to evaluate changes in modulus due to the applied loads. Several fiber orientations were tested. Results indicate that the effect of the thermal loads on composite stiffness varies with fiber orientation. Applications of this method to test specimens damaged by uniaxial tension, thermal cycling, and isothermal fatigue loadings are used to illustrate that by monitoring overall structural behavior, changes in stiffness caused by thermomechanical loading can be detected

Celtic Football Club, Irish Ethnicity, and Scottish Society

First paragraph: John Hoberman observes in Sport and Ideology (1984) that "sport has no intrinsic value structure, but it is a ready and flexible vehicle through which ideological associations can be reinforced," and Eric Hobsbawm asserts that "the identity of a nation of millions seems more real as a team of eleven named people." Implicit in these comments is the belief that sport has the capacity to embody and express identity and community-in its national, cultural, ethnic, religious, social, political, and even economic dimensions-in a way that few other social manifestations can match. Celtic Football Club in Scotland, a professional soccer team based in Glasgow, offers a vivid case study of these observations and assertions, including aspects of the nature of community and supporter associations involved in Scottish football. For countless supporters, Celtic is far more than "merely" a football club

Brendan Rodgers' Celtic 'betrayal' reveals just what football means in Scotland

First paragraph: "There was a time when it would have been inconceivable a club of Celtic’s size and history would lose their manager to Leicester City." That was the verdict of player-turned-pundit Jamie Carragher in the Telegraph last week, after Northern Irishman Brendan Rodgers departed one of Europe’s most famous and successful clubs for a lacklustre Leicester languishing in the middle of the English Premier League (EPL). As far as Celtic fans are concerned, the real “BR-exit” has not gone down well. It seems the Glasgow club was simply a stepping stone back to England – a career move.https://theconversation.com/brendan-rodgers-celtic-betrayal-reveals-just-what-football-means-in-scotland-11281

Lisbon Lions: why Celtic's historic 1967 European Cup win was a defining moment for the Irish diaspora in Scotland

First paragraph: Like anywhere else in the world on St Patrick’s Day, where there are people of Irish Catholic descent there will be celebrations of national pride – and the same is true of Scotland. But for many people of Irish descent in Scotland, there is one particular cause for celebration that eclipses even St Patrick’s Day. It’s the story of how an iconic – and unexpected – win for a Glasgow football team in Portugal 50 years ago raised the esteem and restored the pride of a marginalised community.https://theconversation.com/lisbon-lions-why-celtics-historic-1967-european-cup-win-was-a-defining-moment-for-the-irish-diaspora-in-scotland-13170

Are All Critical Sucess Factors in ERP Implementation Created Equal?

This study identifies ten potential critical success factors (CSFs) in Enterprise Resource Planning (ERP) Systems implementation from ERP and IS literature and examines the application of these factors in eight projects. ERP systems promise to provide an off-the-shelf solution to an organization’s information needs. Implementation of ERP projects has proven difficult, complex, costly and time consuming. ERP projects require most organizations to change existing business process and to adopt one of several standardized processes provided by the ERP system. Findings show choosing the right project manager, training and a champion were significant to project success. Establishment of a project headed by a project manager, the use of consultants and the use of a steering committee did not differentiate successful and unsuccessful projects. Integration of ERP planning/business planning, reporting level of the project manager, involvement of general manager and the role of management in reducing user resistance were not supported

Dual cathode system for electron beam instruments

An electron beam source having a single electron optical axis is provided with two coplanar cathodes equally spaced on opposite sides from the electron optical axis. A switch permits selecting either cathode, and a deflection system comprised of electromagnets, each with separate pole pieces equally spaced from the plane of the cathodes and electron optical axis, first deflects the electron beam from a selected cathode toward the electron optical axis, and then in an opposite direction into convergence with the electron optical axis. The result is that the electron beam from one selected cathode undergoes a sigmoid deflection in two opposite directions, like the letter S, with the sigmoid deflection of each being a mirror image of the other

A role for sensory areas in coordinating active sensing motions

Active sensing, which incorporates closed-loop behavioral selection of information during sensory acquisition, is an important feature of many sensory modalities. We used the rodent whisker tactile system as a platform for studying the role cortical sensory areas play in coordinating active sensing motions. We examined head and whisker motions of freely moving mice performing a tactile search for a randomly located reward, and found that mice select from a diverse range of available active sensing strategies. In particular, mice selectively employed a strategy we term contact maintenance, where whisking is modulated to counteract head motion and sustain repeated contacts, but only when doing so is likely to be useful for obtaining reward. The context dependent selection of sensing strategies, along with the observation of whisker repositioning prior to head motion, suggests the possibility of higher level control, beyond simple reflexive mechanisms. In order to further investigate a possible role for primary somatosensory cortex (SI) in coordinating whisk-by-whisk motion, we delivered closed-loop optogenetic feedback to SI, time locked to whisker motions estimated through facial electromyography. We found that stimulation regularized whisking (increasing overall periodicity), and shifted whisking frequency, changes that emulate behaviors of rodents actively contacting objects. Importantly, we observed changes to whisk timing only for stimulation locked to whisker protractions, possibly encoding that natural contacts are more likely during forward motion of the whiskers. Simultaneous neural recordings from SI show cyclic changes in excitability, specifically that responses to excitatory stimulation locked to whisker retractions appeared suppressed in contrast to stimulation during protractions that resulted in changes to whisk timing. Both effects are evident within single whisks. These findings support a role for sensory cortex in guiding whisk-by-whisk motor outputs, but suggest a coupling that depends on behavioral context, occurring on multiple timescales. Elucidating a role for sensory cortex in motor outputs is important to understanding active sensing, and may further provide novel insights to guide the design of sensory neuroprostheses that exploit active sensing context