On the political economy of immigration and income redistribution

Emigration and immigration ; Income distribution

On the political economy of immigration

Emigration and immigration

The political economy of endogenous taxation and redistribution

Taxation

Session C2: Converting Government Policy into Practice by Restoring the Connectivity of English Rivers for the Free Passage of Fish

Abstract: River obstructions are major obstacles to connectivity and have been responsible for the decline of many diadromous fish populations. In the past fish passage solutions were built opportunistically. However with the introduction of various European Directives and recognition of a need to be more strategic in planning solutions the Environment Agency has developed an approach that ensured resources, knowledge and technical capacity were operationally aligned and optimised to get the greatest ecological benefit from re-connecting river systems for the free passage of fish. This paper will show how we have prioritized obstructions using a digital representation of the river system based on a high resolution river centreline network. Potential obstructions to fish on the network were identified from features previously mapped by Ordnance Survey, Britain’s national mapping agency. We were able to precisely map the locations of nearly 26,000 weirs, dams, barrages, waterfalls, sluices and other obstructions. Network analysis techniques enabled us to gather metrics on tidal distance distance upstream to key features and head drop using LIDAR data. The data has been used directly in fish population models and to help focus resources to resolve fish and eel passage issues through prioritisation initiatives. We have also developed crowd sourcing initiatives to map and gather data on existing and newly discovered obstructions through a smart phone App, with our partners in the Scottish Environmental Protection Agency. We show how we have 1) embedded an objective focussed and prioritised approach to achieve legislative commitments, 2) centralised the service to help with delivery and improved contractor and project management capability (and capacity) through the production of a Fish Pass manual and 3) developed and improved fish pass technical knowledge and resilience to get better value for money

Christian Publishing: A Panel Discussion

The 2007 conference of the Association of Christian Librarians convened in Grand Rapids, Michigan, on the campus of Cornerstone University. Conference planners invited representatives of four prominent Christian publishers headquartered there (Baker, Eerdmans, Kregel, and Zondervan) to participate in a panel discussion on June 13. The panelists’ 65-minute exchange is transcribed here in slightly abbreviated form. At the beginning of the discussion, panelists were asked to reflect on general trends in the Christian publishing industry. This led naturally to a lengthy conversation about the publishers’ involvement in the creation and licensing of ebooks and other digital products. Finally, panelists were asked to address the proliferation of English Bible versions aimed at the evangelical community

Session A4: Monitoring Fish Pass Performance: Towards a European Standard

Abstract: We need more, and better, fish pass performance data in order to inform and improve on our current fish pass designs. Relatively few fish pass construction projects currently budget for accompanying monitoring programmes and those monitoring studies that do take place vary widely in terms of the terminology and methodology used. This variability of data and lack of transferable knowledge is a major constraint on the development of fish pass design internationally. In order to maximise the benefit from expensive monitoring studies, the results need to be pooled and compared, which is not possible when studies measure different efficiency and effectiveness metrics. A standardised approach which defines the terminology, metrics and provides a framework for experimental design to achieve robust measurement of these metrics would help to address this issue. Standardising fish pass evaluation would help to improve the accuracy of efficiency and effectiveness estimates and provide information in a transferable form that can then be used to compare across studies and fish pass types, ultimately improving fish pass designs. Methodological standards in Europe are developed through the European Committee for Standardisation (CEN); typically taking 3 years to reach publication. A ‘Fish Pass Evaluation’ New Work Item proposal has been submitted to CEN with the UK’s Environment Agency leading the project. This presentation will provide an outline of the CEN Standards process, the vision for what a fish pass monitoring standard could contain and an update on progress. It is hoped that this will stimulate discussion and involvement from fish passage scientists, both within and beyond the 33 Member States, which is critical to the successful development, implementation and potential exportation of a European Standard, thereby increasing the pool of comparable data

Investigation of Desiccants and CO2 Sorbents for Advanced Exploration Systems 2015-2016

Advanced Environmental Control and Life Support System (ECLSS) design is critical for human space flight beyond Earth. Current systems enable extended missions in low-Earth orbit, but for deep-space missions, not only will astronauts be outside the reach of resupply operations from Earth but they will also need to handle malfunctions and compensate for the degradation of materials. These two daunting challenges must be overcome for long-term independent space flight. In order to solve the first, separation and reuse of onboard atmosphere components is required. Current systems utilize space vacuum to fully regenerate adsorbent beds, but this is not sustainable thus necessitating a closed-loop system. The second challenge stems from material and performance degradation due to operational cycling and on-board contaminants. This report will review the recent work by the ECLSS team at Marshall Space Flight Center towards overcoming these challenges by characterizing materials via novel methods for use in future systems

Material Analysis and System Design for Exploration Life Support Systems 2017

Advanced Environmental Control and Life Support System (ECLSS) design is critical for manned space flight beyond Earth. Current systems enable extended missions in low-Earth orbit, but for deep-space missions, not only will astronauts be outside the reach of resupply operations from Earth but they will also need to handle malfunctions and compensate for the degradation of materials. These two daunting challenges must be overcome for long-term independent space flight. In order to solve the first, separation and recycling of onboard atmosphere is required. Current systems utilize space vacuum to fully regenerate CO2 sorbent beds, but this is not sustainable. The second challenge stems from material and performance degradation due to operational cycling and on-board contaminants. This report will review the recent work by the ECLSS team at Marshall Space Flight Center towards overcoming these challenges by characterizing materials via novel methods and by assessing new air revitalization systems

An exploration into the effects of dynamic economic stabilization

Economic stabilization