3,370 research outputs found
A reappraisal of online mathematics teaching using LaTeX
The mathematics language LaTeX is often seen outside of academic circles as a legacy technology that is awkward to use. MathML - a verbose language designed for data-exchange, and to be written and understood by machines - is sometimes by contrast seen as something that will aid online mathematics and lack of browser support for it bemoaned. However LaTeX can already do many of the things that MathML might promise. LaTeX is here proposed as a language from which small fragments, with concise syntax, can be used by people to easily create and share mathematical expressions online. The capability to embed fragments of LaTeX code in online discussions is described here and its impact on a group of educators and learners evaluated. Here LaTeX is posited as a useful tool for facilitating asynchronous, online, collaborative learning of mathematics
Bringing Home the Green Recovery: A User's Guide to the 2009 American Recovery and Reinvestment Act
The 100 billion in funding for transportation and infrastructure, 41 billion for energy-related programs, and $20 billion in tax incentives for renewable energy. But without substantial advocacy from local and state groups, these historic federal investments may not end up in the communities that need them most. The in-depth guide offers tangible, up-to-date information and ideas for using and securing recovery dollars to help expand opportunity in low-income communities and communities of color. The guide is a first step in what will be a vital nationwide effort to ensure the recovery package helps all communities rise stronger than ever from this economic crisis, and that community-based organizations are at the forefront in crafting a green, equitable recovery.American Recovery and Reinvestment Act, ARRA, stimulus
ViCoCITY – A virtual company environment used in distance education to teach key professional skills
This paper will discuss the background and rationale for the introduction of ViCoCITY to the Bachelor of Science in Information Technology (BSc in IT) degree offered through distance education by Oscail, Dublin City University (DCU)
How to foster collaboration in an eLearning environment - Lessons from Oscail.
This paper details how social interaction was integrated into a degree programme run by Oscail - the National Distance Education Centre (DCU). While a key objective was to introduce an element of mandatory group work into a module of the distance education programme, the course designers also held the opinion that (given the discursive nature of the content of the chosen module) student learning would benefit greatly from engaging in online discussions on the content of the module.
A major challenge was the process of the integration of group work while (as far as possible) maintaining the time and place independence of distance education. After a substantial review of the 2004 presentation, the function of group work was changed radically in the 2005 academic year. In particular, the assessment of students’ online social interaction was radically changed. This paper will focus on the outcomes of the 2005 implementation and discuss the (less radical) changes that have been introduced for the 2006 presentation
Carbon Free Boston: Offsets Technical Report
Part of a series of reports that includes:
Carbon Free Boston: Summary Report;
Carbon Free Boston: Social Equity Report;
Carbon Free Boston: Technical Summary;
Carbon Free Boston: Buildings Technical Report;
Carbon Free Boston: Transportation Technical Report;
Carbon Free Boston: Waste Technical Report;
Carbon Free Boston: Energy Technical Report;
Available at http://sites.bu.edu/cfb/OVERVIEW:
The U.S. Environmental Protection Agency defines offsets as a specific activity or set of activities
intended to reduce GHG emissions, increase the storage of carbon, or enhance GHG removals from the
atmosphere [1]. From a city perspective, they provide a mechanism to negate residual GHG emissions—
those the city is unable to reduce directly—by supporting projects that avoid or sequester them outside
of the city’s reporting boundary.
Offsetting GHG emissions is a controversial topic for cities, as the co-benefits of the investment are
typically not realized locally. For this reason, offsetting emissions is considered a last resort, a strategy
option available when the city has exhausted all others. However, offsets are likely to be a necessity to
achieve carbon neutrality by 2050 and promote emissions reductions in the near term. While public and
private sector partners pursue the more complex systems transformation, cities can utilize offsets to
support short-term and relatively cost-effective reductions in emissions. Offsets can be a relatively
simple, certain, and high-impact way to support the transition to a low-carbon world.
This report focuses on carbon offset certificates, more often referred to as offsets. Each offset
represents a metric ton of verified carbon dioxide (CO2) or equivalent emissions that is reduced,
avoided, or permanently removed from the atmosphere (“sequestered”) through an action taken by the
creator of the offset. The certificates can be traded and retiring (that is, not re-selling) offsets can be a
useful component of an overall voluntary emissions reduction strategy, alongside activities to lower an
organization’s direct and indirect emissions. In the Global Protocol for Community-Scale Greenhouse Gas
Emissions Inventories (GPC), the GHG accounting system used by the City of Boston, any carbon offset
certificates that the City has can be deducted from the City’s total GHG emissions.http://sites.bu.edu/cfb/files/2019/06/CFB_Offsets_Technical_Report_051619.pdfPublished versio
Carbon Free Boston: Energy Technical Report
Part of a series of reports that includes:
Carbon Free Boston: Summary Report;
Carbon Free Boston: Social Equity Report;
Carbon Free Boston: Technical Summary;
Carbon Free Boston: Buildings Technical Report;
Carbon Free Boston: Transportation Technical Report;
Carbon Free Boston: Waste Technical Report;
Carbon Free Boston: Offsets Technical Report;
Available at http://sites.bu.edu/cfb/INTRODUCTION:
The adoption of clean energy in Boston’s buildings and transportation systems will produce sweeping
changes in the quantity and composition of the city’s demand for fuel and electricity. The demand for
electricity is expected to increase by 2050, while the demand for petroleum-based liquid fuels and
natural gas within the city is projected to decline significantly. The city must meet future energy demand
with clean energy sources in order to meet its carbon mitigation targets. That clean energy must be
procured in a way that supports the City’s goals for economic development, social equity, environmental
sustainability, and overall quality of life. This chapter examines the strategies to accomplish these goals.
Improved energy efficiency, district energy, and in-boundary generation of clean energy (rooftop PV)
will reduce net electric power and natural gas demand substantially, but these measures will not
eliminate the need for electricity and gas (or its replacement fuel) delivered into Boston. Broadly
speaking, to achieve carbon neutrality by 2050, the city must therefore (1) reduce its use of fossil fuels
to heat and cool buildings through cost-effective energy efficiency measures and electrification of
building thermal services where feasible; and (2) over time, increase the amount of carbon-free
electricity delivered to the city. Reducing energy demand though cost effective energy conservation
measures will be necessary to reduce the challenges associated with expanding the electricity delivery
system and sustainably sourcing renewable fuels.Published versio
Guest Editors\u27 Introduction to the Special Issue on Ethics of Debt
Debt is often central to nancial decision making, and it plays a key role in nancial counseling and planning. It also raises important ethical questions for individuals and families, small businesses, and lawmak- ers. Which forms of debt, and at what levels, are most con- ducive to nancial well-being? Does nancial literacy— such as understanding the often complicated terms of debt—contribute to nancial success, and is there any cor- relation with ethical behavior? Which policies would best support individuals and families as they acquire, repay, and sometimes default on debts
Bringing Home the Green Recovery: A User's Guide to the 2009 American Recovery and Reinvestment Act
The 100 billion in funding for transportation and infrastructure, 41 billion for energy-related programs, and $20 billion in tax incentives for renewable energy.But without substantial advocacy from local and state groups, these historic federal investments may not end up in the communities that need them most. The in-depth guide offers tangible, up-to-date information and ideas for using and securing recovery dollars to help expand opportunity in low-income communities and communities of color.The guide is a first step in what will be a vital nationwide effort to ensure the recovery package helps all communities rise stronger than ever from this economic crisis, and that community-based organizations are at the forefront in crafting a green, equitable recovery
Primary open abductor reconstruction - a 5-10 year study
Background: Gluteal tears are recognised as the source of pain over the greater trochanter. We investigated the outcome of primary open abductor tendon reconstruction with a 5 year follow-up.
Methods: 165 consecutive hips underwent an open abductor tendon reconstruction, with all tears confirmed pre-operatively by MRI. Oxford hip scores (OHS) were assessed at the initial visit, and at 5 to 10 years.
Results: The average pre-operative OHS was 22 (r: 7y – 34y) and average post-operative OHS was 40 a difference of 18 (p\u3c0.0001).
Conclusion: Surgical reconstruction of degenerate abductor tendons should be considered in the presence of an MRI confirmed separation where clinical findings are consistent with the known tendon disruption. Open transosseous reconstruction reliably results in good pain relief at 5 to 10 years
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