207 research outputs found
Many Rivers to Cross: Evaluating the Benefits and Limitations of Strategic Environmental Assessment for the Koshi River Basin
This paper assesses the value of using Strategic Environmental Assessment (SEA) to account for the spatially and temporally diverse and diffuse impacts of hydropower development in South Asia’s Koshi basin. A policy and practice review and key stakeholder interviews identified opportunities for SEA to improve existing planning procedures, but also barriers to effective adoption. Whilst stakeholders are interested in employing SEA to evaluate cumulative impacts, institutional blockages and an economic development imperative for power generation leave little space for consideration of alternative scenarios as part of SEA. The analysis is conducted through the formulation and application of a conceptual framework for SEA best practice which is then used to identify priority next-steps for SEA in the region
Understanding mobility characteristics and needs of older persons in urban Pakistan with respect to use of public transport and self-driving
Since 1990, Pakistan's demographic transition has been increasing life spans with a steady rise in the number of older persons. Pakistan faces many challenges in caring for its older population. The proportion of the population aged 60 years and above is estimated to increase from 5.8% in 2000 to 12.4% in 2050. A study was conducted to understand the existing mobility characteristics of the elderly, their perceived needs and constraining factors. Data was collected using convenient sampling from 450 people aged 60 years or older in nine towns within Lahore City. Older people were approached around urban facilities (shops, banks, terminals) and asked to respond to survey questions. Within-residence interviews were also conducted, mainly for those women who declined interviews in public places. Descriptive and comparative analyses were performed, including Pearson's chi squared test for independence. The results are discussed in terms of mode choice, public transport preferences, self-driving issues and the relative benefits of formal and informal public transport options. The study found lower levels of weekly trip-making compared to those reported for older people in China, South Korea and USA. Vehicle ownership (mainly carsand motorcycles) and socio-demographic factors were found to significantly affect trip making. There were large gender differences in trip making and vehicle ownership, suggesting further research and policy action targeting the mobility needs of elderly women. Older persons were concerned about safety issues concerning public transport and self-driving, and also the behavior of transport crews, and this has informed several of the concluding policy recommendations
Chapter 20 Assessment of radiation pollution from nuclear power plants
Nuclear power plants split uranium atoms in a process called fission. In a nuclear power plant, heat is generated to produce steam that spins a turbine to generate electricity. Nuclear energy has been proposed in response to the need for a clean energy source compared to CO2 production plants. However, nuclear energy is not necessarily a source of clean energy as nuclear power plants release small amounts of greenhouse emissions in activities related to building and running the plant. Moreover, even if all safety measures are followed, there is no guarantee that an accident will not occur in a nuclear power plant. In the case of an accident involving a nuclear power plant, the environment and the people around it may be exposed to high levels of radiation. Another important environmental problem related to nuclear energy is the generation of radioactive waste that can remain radioactive and dangerous to human health for thousands of years. There are also several issues with burying the radioactive waste. Here, we describe different types of radioactive waste pollution from nuclear power plants, their environmental effects, nuclear regulations, and nuclear power plant incidents. Moreover, two case studies on nuclear power plant accidents and their consequences are discussed
Isolation and characterization of microsatellite loci in a polyploid alpine herb, Callianthemum miyabeanum
Isolation and characterization of microsatellite loci in the threatened wild toad lily Tricyrtis flava (Liliaceae)
Practical guide to Solid Waste Management in Pacific Island Countries and Territories
Color illustrations; mapsThis Practical Guide is the compilation of good practices identified and developed by experts in the region through J-PRISM Phase I. This covers all solid waste management (SWM) issues from the technical ones, such as waste generation survey and landfill improvement, to the managerial ones, such as contract management and user pays system. These good practices have high applicability to other Pacific islands, although modification and adaptation are always necessary
Electromagnetic interference of using 24Vdc current control buck converter for medical light emitting diode
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