Advanced Strain-Isolation-Pad Material with Bonded Fibrous Construction

The feasibility of utilizing air lay and liquid lay felt deposition techniques to fabricate strain isolation pad (SIP) materials for the Space Shuttle Orbiter was demonstrated. These materials were developed as candidate replacements for the present needled felt SIP used between the ceramic tiles and the aluminum skin on the undersurface of the Orbiter. The SIP materials that were developed consisted of high temperature aramid fibers deposited by controlled fluid (air or liquid) carriers to form low density unbonded felts. The deposited felts were then bonded at the fiber intersections with a small amount of high temperature polyimide resin. This type of bonded felt construction can potentially eliminate two of the problems associated with the present SIP, viz., transmittal of localized stresses into the tiles and load history dependent mechanical response. However, further work is needed to achieve adequate through thickness tensile strength in the bonded felts

Under New Management: Share Ownership and the Growth of UK Asset Manager Capitalism

Over the past several decades, asset management firms – financial intermediaries who invest assets on behalf of ultimate beneficiaries such as pension holders or wealthy individuals – have surged to become the dominant shareholders in corporations throughout the global economy, supplanting individuals and other institutional investors such as pension funds. This growth has been accompanied by a second trend: significant concentration within asset management itself. BlackRock and Vanguard, the two largest asset managers worldwide, control $9 trillion and$8 trillion in assets, respectively – or more than four times the value of all UK corporations. We argue the emerging dominance of asset managers constitutes a new corporate governance regime, a clear understanding of which is vital to addressing corporations’ roles in societal challenges from the climate crisis to wage stagnation and inequality. This new regime – asset manager capitalism - is the product of two related trends in ownership without historical precedent: the combination of significant reconcentration of ownership within a small top cohort of minority shareholders, and the universal nature of these shareholders, meaning their ownership of assets is distributed across all geographies and industries. In contrast to the image of the activist shareholder, on which the prevailing ‘shareholder primacy’ regime of corporate governance is based, asset manager capitalism is defined by a structure of ownership in which the dominant owners of a corporation are motivated not by the performance of individual portfolio companies, but by the accumulation of further assets under management. In the US, the rise of the asset management industry and increasing domination of ownership by elite asset management firms of corporate shares, bonds, and numerous other asset classes is well documented. In the UK, this transition is less well documented. To address this gap, we analysed shareholding data in the FTSE350 index of UK companies from the end of 2000 to the end of 2020, assessing trends in ownership distribution as well as corresponding shifts in corporate behaviour. We found that although the total share of FTSE350 value controlled by the 10 largest investors remained relatively stable at approximately 20% over this period, concentration within the Top 10 became substantially more pronounced, with BlackRock and Vanguard now controlling 10%. At the level of individual firms, we found a substantial upward trend with respect to the fraction of shares outstanding held by the top 10 investors in a given firm. With respect to corporate behaviour over this period, our analysis found that while productive investment had declined, shareholder payouts as a proportion of profits had risen substantially, reaching nearly 80% of pre-tax profits at the end of 2020. These results suggest the UK is following the US in the solidification of an economy defined by asset manager capitalism, with implications for policymakers and others concerned with corporations’ roles in inequality, productivity and sustainability.Executive Summary 1 Introduction 2 Corporate ownership: The last 100 years 2.1 Institutionalization 1.0: Dispersion 2.2 Institutionalization 2.0: Internationalization and Reconcentration 3 Asset manager capitalism as corporate governance regime 4 Zooming in: The top of the shareholder crop 4.1 The age of the asset manager 4.2 The Rise of the Big 10 5 Corporate governance under asset manager capitalism: what do asset managers want? 6 Conclusions and Recommendations 6.1 What’s the purpose of shareholders, anyway? 6.2 Cutting out the middleman? Alternative models of ownershi

Land use change: implications for Australian Capital Territory Water use

Managing water resources to ensure environmental values are maintained, whilst allowing for continued economic development is a major challenge facing many areas including the Australian Capital Territory (ACT). This paper reports on a GIS based investigation of the implications of land use change on ACT water use. The paper describes a suite of tools that are collectively termed PLUCA (Platform for Land use Change Assessment). Areas with the potential for land use change were identified through land capability assessment and by investigation of the suitability of land for development of alternate industries. Spatial data including slope, aspect, a wetness index, climatic surfaces, geology and consideration of the minimum viable scale of industry were analysed in the study. A coarse land use class – water use relationship estimated for the ACT was used to determine the maximum potential water use resulting from land use change. Three scenarios, based on different levels of land use change were constructed to simulate high, medium and low levels of potential landuse change in the ACT. The estimated reduction in streamflow for the maximum development scenario, was around 6.8% of the average annual runoff from the ACT. This scenario represented modification of only 3.9% of the total land area. This study demonstrates the potential for the use of GIS in the optimisation of landuse from biophysical characteristics. The implications of such changes should they occur were calculated through investigation of the annual average reduction in streamflow. The study demonstrates the use of GIS techniques in quantifying interactions at appropriate scales for decision making. The development of improved decision support tools is also outlined. <br

The Labour Government, the Treasury and the £6 pay policy of July 1975

The 1974-79 Labour Government was elected in a climate of opinion that was fiercely opposed to government intervention in the wage determination process, and was committed to the principles of free collective bargaining in its manifestoes. However, by December 1974 the Treasury was advocating a formal incomes policy, and by July 1975 the government had introduced a £6 flat rate pay norm. With reference to archival sources, the paper demonstrates that TUC and Labour Party opposition to incomes policy was reconciled with the Treasury's advocacy by limiting the Bank of England‟s intervention in the foreign exchange market when sterling came under pressure. This both helped to achieve the Treasury's objective of improving the competitiveness of British industry, and acted as a catalyst for the introduction of incomes policy because the slide could be attributed to a lack of market confidence in British counter-inflation policy

Modelagem do crescimento e da colheita periódica do aguapé (Eichhornia crassipes) para produção de biocombustíveis.

Este estudo analisou o crescimento do aguapé em sistemas fechados por meio da análise ecossistêmica permitindo assim o desenvolvimento de um modelo para a simulação do crescimento da biomassa do aguapé, remoção de nutrientes e efeitos da colheita

Duplex strand joining reactions catalyzed by vaccinia virus DNA polymerase

Vaccinia virus DNA polymerase catalyzes duplex-by-duplex DNA joining reactions in vitro and many features of these recombination reactions are reprised in vivo. This can explain the intimate linkage between virus replication and genetic recombination. However, it is unclear why these apparently ordinary polymerases exhibit this unusual catalytic capacity. In this study, we have used different substrates to perform a detailed investigation of the mechanism of duplex-by-duplex recombination catalyzed by vaccinia DNA polymerase. When homologous, blunt-ended linear duplex substrates are incubated with vaccinia polymerase, in the presence of Mg(2+) and dNTPs, the appearance of joint molecules is preceded by the exposure of complementary single-stranded sequences by the proofreading exonuclease. These intermediates anneal to form a population of joint molecules containing hybrid regions flanked by nicks, 1–5 nt gaps, and/or short overhangs. The products are relatively resistant to exonuclease (and polymerase) activity and thus accumulate in joining reactions. Surface plasmon resonance (SPR) measurements showed the enzyme has a relative binding affinity favoring blunt-ended duplexes over molecules bearing 3′-recessed gaps. Recombinant duplexes are the least favored ligands. These data suggest that a particular combination of otherwise ordinary enzymatic and DNA-binding properties, enable poxvirus DNA polymerases to promote duplex joining reactions

A survey of Edwardsiella ictaluri in wild catfish populations in Australia

This report contains the findings of the first survey of the exotic bacterium Edwardsiella ictaluri in wild freshwater fish populations in Australia. Edwardsiella ictaluri causes enteric septicaemia of catfish (ESC), which is a serious disease of farmed channel catfish in the USA. The bacterium has previously been detected in imported ornamental fish and in native catfish held in Australian aquarium facilities, but wild fish populations in Australia are considered free of the disease. The Australian Government Department of Agriculture, through the Fisheries Research and Development Corporation, funded an active surveillance program to provide further evidence for this claim of disease freedom

Scaling-up beginning farmers for wholesale production

With nearly 15 million people that live within 250 miles of Kansas City, the demand for local food is increasing. Local beginning farmers in the region want to reach an emerging wholesale market. However, selling directly to consumers demands different skills than the wholesale market requires. There are many educational programs offered in the region that are focused on direct to consumer sales. Unfortunately, there is a gap in educational programs that are offered to support beginning farmers that wish to expand into wholesale markets. In 2018, the Beginning Farmer Wholesale Project was started within the Growing Growers Kansas City program in congruence with the overall mission to improve the skills and livelihoods of the region’s growers. The project offers support and training to beginning farmers as they begin to navigate new market opportunities. It provides on-farm technical assistance, mentorship, opportunities to connect to wholesale buyers, a workshop series, a manual and an extensive foodshed GIS map. The ongoing project has seen several contributions to improving farmer access to wholesale markets. As of 2020, six workshops have been conducted that have covered a variety of farm production and marketing skills. Six farmer mentees have enrolled in the mentor program which enlists nine farmer mentors from across the region. Over twenty farmers have utilized the technical assistance service on their Kansas and Missouri farm operations and the farmer buyer matching program has resulted in thirteen beginning farmers gaining access to new markets. The project highlights the value of collaboration among organizations and the importance of offering multiple farmer services in order to improve wholesale access