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Search Results: 1 - 10 of 478547 matches for " M. Liu "
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Towards Sustainable Tourism Development in Zambia: Advancing Tourism Planning and Natural Resource Management in Livingstone (Mosi-oa-Tunya) Area  [PDF]
Binyi Liu, Floyd M. Mwanza
Journal of Service Science and Management (JSSM) , 2014, DOI: 10.4236/jssm.2014.71004
Abstract:

Over the last few decades, development policy has been dominated by mainstream economic theories that focus on economic growth to achieve sustainable development. The pace and scale of tourism growth in Livingstone (Mosi-oa-Tunya) area in Zambia have seen over reliance on natural resource utilisation by mass tourism developments. Compounded by insufficient planning and limited co-ordination and collaboration among the institutions involved in the tourism sector, tourism can have a negative impact and can create conflicts. Tourism growth in Livingstone (Mosi-oa-Tunya) has predominantly focused on the economic incentives in tourism and ignored the social perspective and impact on the local population. In general, the government agency administration structures affect the successful implementation of tourism policy and planning for sustainable tourism development. Given the fact that the limited government support, funds and appropriate knowledge in tourism limit Livingstone (Mosi-oa-Tunya) to develop as a sustainable “green” destination and remain an enormously difficult task to achieve.

Social Integration in Public Spaces & Landscapes: Perceptions and Experiences towards Multicultural Shanghai  [PDF]
Liu Binyi, Floyd M. Mwanza
Chinese Studies (ChnStd) , 2014, DOI: 10.4236/chnstd.2014.31004
Abstract: Multiculturalism in today’s globalised economies has become a hot topic. This research seeks to document the differing experiences of non-Chinese and Chinese to public spaces and landscapes, focusing on the factors influencing the involvement of non-Chinese people in public spaces and landscapes. The study seeks to ascertain whether particular public spaces have social significance in the integration of non-Chinese people in Shanghai, China, and whether there is a need to develop a policy in relation to strategies for social integration in the now thriving multicultural Shanghai communities. Multiculturalism and Urbanism for future cities can be the basis on which a problem statement(s) can be developed for further research. Multicultural social integration is about recognising diversity and indifferences. People from different cultural backgrounds may value the public space landscape quite differently to natives. Social integration allows cultural richness to open hearts and minds to different ways of seeing and experiencing public parks and landscapes. It can tell us something about the ways in which people adapt their traditions to different circumstances in a new country. It is the hope of this research that a series of studies on “Multiculturalism and Social Integration and Landscape in Asian Cities” will be done.
Electrospun Food-Grade Ultrafine Fibers from Pectin and Pullulan Blends  [PDF]
Shih-Chuan Liu, Ran Li, Peggy M. Tomasula, Ana M. M. Sousa, Linshu Liu
Food and Nutrition Sciences (FNS) , 2016, DOI: 10.4236/fns.2016.77065
Abstract: Electrospinning was used to produce ultrafine fibers and fibrous mats from aqueous solutions containing two edible polysaccharides: pectin (PEC) and pullulan (PUL). The process excluded the use of a synthetic carrier polymer or non-aqueous solvents thus maintaining the food-grade status of the components. The inclusion of PUL reduced the surface tension and electric conductivity of pectin solution, and promoted molecular entanglement between PEC and PUL as confirmed by rheological analysis. The spinnability of either polysaccharide was promoted by inclusion of the other. Cross-linking PEC networks were obtained by soaking the fibrous mats in successive Ca2+ solution. The fibrous mats can be used to carry bioactive compounds as demonstrated using probiotic bacteria Lactobacillus rhamnosus GG (LGG) as a model bioactive compound. The research is significant for the development of food products with unique textures and functionalities.
Innovations in Retinal Laser Technology  [PDF]
Xinyi Xie, Qinghuai Liu, Yannis M. Paulus
Optics and Photonics Journal (OPJ) , 2018, DOI: 10.4236/opj.2018.86016
Abstract: Retinal laser photocoagulation is a proven, effective treatment for various retinal disorders, including diabetic retinopathy, retinal vein occlusions, and sickle cell retinopathy. To minimize iatrogenic retinal damage while maintaining therapeutic effects, retinal laser technology has evolved significantly since its introduction in ophthalmology more than half a century ago. These innovations have included both optimizations of laser parameters in addition to the development of novel laser delivery systems. This review summarizes recent innovations in retinal laser technology, including subthreshold micropulse laser, selective retinal therapy and nanosecond laser, innovative modes of laser delivery including pattern scanning laser, endpoint management, navigated laser, and newly described photo-mediated ultrasound therapy.
Effects of Quality and Quantity of Information Processing on Design Coordination Performance  [PDF]
R. Zhang, A. M. M. Liu, I. Y. S. Chan
World Journal of Engineering and Technology (WJET) , 2018, DOI: 10.4236/wjet.2018.62B005
Abstract:
It is acknowledged that lacking of interdisciplinary communication amongst designers can result in poor coordination performance in building design. Viewing communication as information processing activity, this paper aims to explore the relationship between interdisciplinary information processing (IP) and design coordination performance. Both amount and quality are concerned regarding information processing. 698 project based samples are collected by questionnaire survey from design institutes in mainland China. Statistical data analysis shows that the relationship between information processing amount and design coordination performance follows a nonlinear exponential expression: performance = 3.691 (1-0.235IP amount) rather than reverted U curve. It implies that design period is too short to allow information overload. It indicates that the main problem in interdisciplinary communication in design institute in China is insufficient information. In additional, it is found the correlation between IP quality and coordination process performance is much stronger than that between IP amount and coordination process performance. For practitioners, it reminds design mangers to pay more attention to information processing quality rather than amount.
Genesis of continental seismogenic zone and a new fault zone model
Junlai Liu,M. Shimada
Chinese Science Bulletin , 2000, DOI: 10.1007/BF02886300
Abstract: Experiments were conducted repeatedly on Mannari granite under different temperature and confining pressure conditions. Systematic micro- and submicro-structural and mechanical analyses of granite samples deformed under 1.5 GPa (confining pressure), at 25°C–650°C temperatures and at 2×10 6s 1 strain rate show the brittle-ductile deformation microstructures and microstructural associations similar to those observed in naturally deformed crustal rocks and minerals. Brittle fracturing and crystalline plasticity co-exist and react with each other in the brittle-ductile transition domain of the continental lithosphere. The interaction between the different mechanisms in the transitional domain results in the variation of anomalous strength values, which may best explain the genesis of the continental seismogenic zone. A new fault zone model is proposed on the basis of detailed micromechanical and microstructural analyses.
Improving patient outcomes: role of the primary care optometrist in the early diagnosis and management of age-related macular degeneration
Liu L, Swanson M
Clinical Optometry , 2013, DOI: http://dx.doi.org/10.2147/OPTO.S29932
Abstract: oving patient outcomes: role of the primary care optometrist in the early diagnosis and management of age-related macular degeneration Review (466) Total Article Views Authors: Liu L, Swanson M Video abstract presented by Mark Swanson Views: 11 Published Date February 2013 Volume 2013:5 Pages 1 - 12 DOI: http://dx.doi.org/10.2147/OPTO.S29932 Received: 12 September 2012 Accepted: 23 October 2012 Published: 19 February 2013 Lei Liu, Mark Swanson School of Optometry, University of Alabama at Birmingham, Birmingham, AL, USA Abstract: Not long ago, the management of age-related macular degeneration (AMD) was confined to rehabilitating whatever vision had not been damaged by the disease. The recent successes of the anti-vascular endothelial growth factor agents and the antioxidant clinical trials have revolutionized AMD treatment. For the first time, there is realistic hope that the progression of AMD can be slowed down or stopped and near normal vision can be preserved. Developments in new vision tests, imaging modalities, and genetic testing have greatly improved the chance of detecting the onset of AMD and choroidal neovascularization. However, because the current treatments still cannot revive degenerated retinal cells, the best patient outcome that can be achieved is early detection of the disease and application of the appropriate treatment before too much retinal damage has occurred. The opportunities and challenges offered by the new treatment options and disease detection methods have redefined the role of primary care optometrists in AMD management. This review of literature and practice guidelines demonstrates that, in addition to the traditional roles of refraction and visual rehabilitation, the unique position of optometrists as the first-line eye-care providers has allowed them to play an important role in the early detection of AMD, patient education, lifestyle-change counseling, disease monitoring and referral, and nutrition supplement counseling. The active participation of primary care optometrists in the shared care of AMD management is likely to result in great improvement in patient outcomes. Optometrists also need to improve their competence in these areas to meet the new challenges. Although primary care optometrists have always managed patients with AMD, their role in managing this sight-threatening disease has not been adequately documented. In light of the recent game-changing developments in AMD treatment, it is important to review what primary care optometrists are doing, what they can do, and what they should do to improve patient outcomes in the new era of AMD management.
Improving patient outcomes: role of the primary care optometrist in the early diagnosis and management of age-related macular degeneration
Liu L,Swanson M
Clinical Optometry , 2013,
Abstract: Lei Liu, Mark SwansonSchool of Optometry, University of Alabama at Birmingham, Birmingham, AL, USAAbstract: Not long ago, the management of age-related macular degeneration (AMD) was confined to rehabilitating whatever vision had not been damaged by the disease. The recent successes of the anti-vascular endothelial growth factor agents and the antioxidant clinical trials have revolutionized AMD treatment. For the first time, there is realistic hope that the progression of AMD can be slowed down or stopped and near normal vision can be preserved. Developments in new vision tests, imaging modalities, and genetic testing have greatly improved the chance of detecting the onset of AMD and choroidal neovascularization. However, because the current treatments still cannot revive degenerated retinal cells, the best patient outcome that can be achieved is early detection of the disease and application of the appropriate treatment before too much retinal damage has occurred. The opportunities and challenges offered by the new treatment options and disease detection methods have redefined the role of primary care optometrists in AMD management. This review of literature and practice guidelines demonstrates that, in addition to the traditional roles of refraction and visual rehabilitation, the unique position of optometrists as the first-line eye-care providers has allowed them to play an important role in the early detection of AMD, patient education, lifestyle-change counseling, disease monitoring and referral, and nutrition supplement counseling. The active participation of primary care optometrists in the shared care of AMD management is likely to result in great improvement in patient outcomes. Optometrists also need to improve their competence in these areas to meet the new challenges. Although primary care optometrists have always managed patients with AMD, their role in managing this sight-threatening disease has not been adequately documented. In light of the recent game-changing developments in AMD treatment, it is important to review what primary care optometrists are doing, what they can do, and what they should do to improve patient outcomes in the new era of AMD management.Keywords: detection, patient education, lifestyle-change counseling, disease monitoring, disease referral, nutrition supplement counseling
Proximity Effect for Metal Absorption Systems
J. M. Liu
Physics , 1997,
Abstract: Using our photoionization code CIRRUS, we show that the study of proximity effect on metal elements provides a possibility of placing constraints on the spectral shape of the metagalactic UV background (MUVB). From theoretical point of view, the most optimum indicator of the spectral shape of the MUVB is the ratio OIV/OIII. Unlike previous thought, the ratio SiIV/CIV is not a good indicator of the spectral shape because of its strong dependence on an ionization parameter as well. We also find that the observed excess of CIV systems in luminous QSOs may be a photoionization effect, but not a gravitational lensing effect.
Electronic structure of topological superconductors in the presence of a vortex lattice
Tianyu Liu,M. Franz
Physics , 2015, DOI: 10.1103/PhysRevB.92.134519
Abstract: Certain types of topological superconductors and superfluids are known to host protected Majorana zero modes in cores of Abrikosov vortices. When such vortices are arranged in a dense periodic lattice one expects zero modes from neighboring vortices to hybridize and form dispersing bands. Understanding the structure of these bands is essential for the schemes that aim to employ the zero modes in quantum computation applications and in studies of their strongly interacting phases. We investigate here the band formation phenomenon in two concrete models, describing a two dimensional p + ip superconductor and a superconducting surface of a three-dimensional strong topological insulator (Fu-Kane model), using a combination of analytical and numerical techniques. We find that the physics of the Majorana bands is well described by tight binding models of Majorana fermions coupled to a static Z2 gauge field with a non-trivial gauge flux through each plaquette, in accord with expectations based on very general arguments. In the case of the Fu-Kane model we also find that, irrespective of the lattice geometry, the Majorana band becomes completely flat at the so called neutrality point (chemical potential coincident with the Dirac point) where the model exhibits an extra chiral symmetry. In this limit the low energy physics will be dominated by four-fermion interaction terms which are permitted by symmetries and may arise from the Coulomb interaction between the constituent electron degrees of freedom.
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