2,717 research outputs found
Development of a Survey Measuring Visitor Satisfaction and Service Quality of Cultural and Natural Sites in Belize
The literature suggests that a correlation exists between visitor satisfaction and a visitor\u27s choice to re-experience a product. The higher one\u27s satisfaction level, the more likely he/she is to experience the product again and/or provide positive word-of-mouth advertising to friends and family. The Tian-Cole and Crompton model was chosen because of its acknowledgment and explanation of the differences between Visitor Satisfaction (VS) and Service Quality (SQ) and how their relationship influences satisfaction and contributes to Future Destination Selection. In addition to identifying a theoretical framework that explains why visitors return, it was necessary to identify a survey methodology to be used in developing the Mountain Pine Ridge Forest Reserve (MPRFR) visitor satisfaction surveys. It was determined that a combination of the Relative Performance Assessment (RPA) and Customer Service Questionnaire (CSQ) was an appropriate survey framework for a visitor satisfaction survey. As a result of the research, two visitor satisfaction surveys were developed: Intercept Survey and Mail-back Survey. The Intercept Survey will be administered at a MPRFR site. It was designed to be concise and not take much of the visitor\u27s time. This survey will be used to gather general information about visitor characteristics and level of satisfaction while at a site. The Mail-back Survey will be sent to the visitor after their trip so more time can be devoted to answering a more detailed visitor satisfaction survey. This survey asks visitors to indicate what site characteristics are important to them and then rate their satisfaction with each item. Instruments from the report entitled A Front Country Visitor Study for Grand Staircase-Escalante National Monument were used as an example of how to format a visitor satisfaction survey and how to use the collected data as a managerial tool. The two main objectives of this research were accomplished and have established a foundation upon which subsequent research efforts will begin. This work serves as a catalyst to improving Belizean site planning, design, and management by better understanding what site characteristics contribute to visitor satisfaction
Definition of socioeconomic scenarios for land surface hydrology simulations of the 21st century
Scarcity and abundance of land resources: Competing uses and the shrinking land resource base
Widespread hunger and rising global food demands (FAO, 2009) require better use of the world's water, land and ecosystems. For an estimated world population of about 9 billion in 2050, agricultural production has to increase by about 70 percent globally and by 100 percent in developing countries. An enormous effort is required to achieve the implied annual growth of nearly 1.5 percent (Bruinsma, 2009; Fischer, 2009; Godfray et al., 2010).
The following policy challenges are of particular concern: Agricultural water withdrawals amount to 70 percent of total anthropogenic water use, and irrigated crops account for 40 percent of the world's total production (FAO, 2003). This makes the agriculture sector of critical social importance, responsible for massive environmental impacts and vulnerable to competition for land and water resources.
Land and water uses for food production regularly compete with other ecosystem services. Ignoring such conflicts over resource use and tradeoffs can lead to unsustainable exploitation, environmental degradation and avoidable long-term social costs. Overcoming this limitation requires better understanding and management of competing uses of land, water and ecosystem services. This includes robust expansion of food and bio-energy production, sustaining regulating ecosystem functions, protecting and preserving global gene pools and enhancing terrestrial carbon pools.
The prospect of meeting future water demand is limited by the declining possibilities of tapping additional sources of freshwater, and by the decreasing quality of water resources caused by pollution and waste. Freshwater resources are unevenly distributed, and many countries and locations suffer severe water scarcity (MEA, 2005).
Climate change is happening, and further global warming in the coming decades seems unavoidable (IPCC, 2007). Food and water provision, land management, and the protection of nature face the immediate need to develop location-specific coping strategies, to use resources differently, to reduce systemic volatility and to safeguard the full range of ecosystem services.
The range of land uses for human needs is limited by environmental factors including climate, topography, and soil characteristics. Land use is primarily determined by demographic and socio-economic drivers, cultural practices and political factors, such as land tenure, markets, institutions and agricultural policies. Good quality and availability of land and water resources, together with important socio-economic and institutional factors, is essential for food security.
FAO, in collaboration with IIASA, has developed a system that enables rational land-use planning based on an inventory of land resources, and evaluation of biophysical limitations and production potentials. The Agro-Ecological Zones (AEZ) approach is based on robust principles of land evaluation. The current Global AEZ (GAEZ-2009) offers a standardized framework for the characterization of climate, soil and terrain conditions relevant to agricultural production, which can be applied at global to subnational levels
STUDIES ON LABILE DEOXYCYTIDYLATE HYDROXYMETHYLASES FROM ESCHERICHIA COLI B INFECTED WITH TEMPERATURE-SENSITIVE MUTANTS OF BACTERIOPHAGE T4
T2-weighted MRI defines critical compression in the distal carpal tunnel that is relieved after decompressive surgery
Introduction: Despite carpal tunnel syndrome (CTS) being the most common entrapment neuropathy, its pathophysiology remains debated. Sub-synovial connective tissues (SSCT) within the carpal tunnel are thought to play a role but are poorly characterised. MRI analysis offers potentially novel insights into SSCT characteristics.
Methods: A pilot study of T2-weighted MRI was performed in healthy controls (n = 7), and in CTS patients (n = 16) pre- and 6 months post-surgical decompression. Image analysis was performed to quantify SSCT cross-sectional area, SSCT signal intensity ratio, and wrist index (depth/width) at distal, middle, and proximal wrist landmarks.
Results: Median SSCT signal intensity was lower in the distal carpal tunnel of CTS patients pre-operatively (0.96) compared to controls (1.13; P = 0.008) and normalised post-operatively (1.13, P = 0.001). Median wrist index was also lower in CTS patients pre-operatively (0.60) than in controls (0.67, P = 0.022), and again normalised post-operatively (0.74, P = 0.001). This was attributed to changes in carpal depth in the anteroposterior axis with decompression surgery.
Conclusion: This pilot study successfully demonstrated MRI assessment of SSCT in patients with CTS. The decreased SSCT signal intensities suggest predominant changes at the distal tunnel, potentially indicating reduced SSCT perfusion pre-surgery which normalised post-surgery. Our preliminary findings merit further investigation in a larger cohort
Ion counting efficiencies at the IGISOL facility
At the IGISOL-JYFLTRAP facility, fission mass yields can be studied at high
precision. Fission fragments from a U target are passing through a Ni foil and
entering a gas filled chamber. The collected fragments are guided through a
mass separator to a Penning trap where their masses are identified. This
simulation work focuses on how different fission fragment properties (mass,
charge and energy) affect the stopping efficiency in the gas cell. In addition,
different experimental parameters are varied (e. g. U and Ni thickness and He
gas pressure) to study their impact on the stopping efficiency. The simulations
were performed using the Geant4 package and the SRIM code. The main results
suggest a small variation in the stopping efficiency as a function of mass,
charge and kinetic energy. It is predicted that heavy fragments are stopped
about 9% less efficiently than the light fragments. However it was found that
the properties of the U, Ni and the He gas influences this behavior. Hence it
could be possible to optimize the efficiency.Comment: 52 pages, 44 figure
Key Dimension 4: Environmental Waste Security
Asia and the Pacific shows a positive trend in strengthening water security with the number of water insecure countries dropping to 29 from 38 in 2013, according to this latest edition of the Asian Water Development Outlook (AWDO).
Despite this progress, enormous challenges in water security remain. Asia is home to half of the world’s poorest people. Water for agriculture continues to consume 80% of water resources. A staggering 1.7 billion people lack access to basic sanitation. With a predicted population of 5.2 billion by 2050 and 22 megacities by 2030, the region’s finite water resources will be under enormous pressure—especially with increasing climate variability. Recent estimates indicate up to 3.4 billion people could be living in water-stressed areas of Asia by 2050.
With a Sustainable Development Goal dedicated to water and sanitation for all, AWDO 2016 is a tool to help assess the region’s progress in meeting this ambitious target
Idler chirp optimization in a pulse-pumped parametric amplifier
A simple engineering rule for idler characteristic optimization in pulsed fiber optic parametric amplifiers operated in transparency is derived. The theoretical results are validated in both simulations and experiments
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