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Search Results: 1 - 10 of 157893 matches for " William F. Eddy "
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Multidimensional Median Filters for Finding Bumps in Chemical Sensor Datasets  [PDF]
Jeffrey C. Miecznikowski, Kimberly F. Sellers, William F. Eddy
Journal of Sensor Technology (JST) , 2012, DOI: 10.4236/jst.2012.21005
Abstract: Feature detection in chemical sensors images falls under the general topic of mathematical morphology, where the goal is to detect “image objects” e.g. peaks or spots in an image. Here, we propose a novel method for object detection that can be generalized for a k-dimensional object obtained from an analogous higher-dimensional technology source. Our method is based on the smoothing decomposition, Data = Smooth + Rough, where the “rough” (i.e. residual) object from a k-dimensional cross-shaped smoother provides information for object detection. We demonstrate properties of this procedure with chemical sensor applications from various biological fields, including genetic and proteomic data analysis.
A statistical approach to the inverse problem in magnetoencephalography
Zhigang Yao,William F. Eddy
Statistics , 2014, DOI: 10.1214/14-AOAS716
Abstract: Magnetoencephalography (MEG) is an imaging technique used to measure the magnetic field outside the human head produced by the electrical activity inside the brain. The MEG inverse problem, identifying the location of the electrical sources from the magnetic signal measurements, is ill-posed, that is, there are an infinite number of mathematically correct solutions. Common source localization methods assume the source does not vary with time and do not provide estimates of the variability of the fitted model. Here, we reformulate the MEG inverse problem by considering time-varying locations for the sources and their electrical moments and we model their time evolution using a state space model. Based on our predictive model, we investigate the inverse problem by finding the posterior source distribution given the multiple channels of observations at each time rather than fitting fixed source parameters. Our new model is more realistic than common models and allows us to estimate the variation of the strength, orientation and position. We propose two new Monte Carlo methods based on sequential importance sampling. Unlike the usual MCMC sampling scheme, our new methods work in this situation without needing to tune a high-dimensional transition kernel which has a very high cost. The dimensionality of the unknown parameters is extremely large and the size of the data is even larger. We use Parallel Virtual Machine (PVM) to speed up the computation.
Soybean germplasms evaluation for acid tidal swamp tolerance using selection index
Heru Kuswantoro,Andy Wijanarko,Dany Setyawan,Eddy William
International Journal of Plant Biology , 2010, DOI: 10.4081/pb.2010.e11
Abstract: Availability of fertile land on the island of Java in Indonesia decreases due to the shifting from agricultural land to non-agricultural land. Hence, an extensification of soybean culture to outer Java suboptimal land areas is needed, such as tidal swamp which occupies approximately 20.192 million hectares. The main limitations in this soil are soil acidity, Fe toxicity and excess water. To develop soybean varieties tolerant to acid tidal swamp, tolerant soybean gene resources are needed. Hence, glasshouse and field experiments were carried out to identify tolerant gene resources. The glasshouse experiment has been conducted using 185 genotypes of germplasm at the Indonesian Legume and Tuber Crops Research Institute, Malang, East Java. Selection was carried out by using a selection index method. The glasshouse experiment was followed by field experiment at the Belandean research station, Banjarbaru, South Kalimantan, using the best 17 genotypes selected from the glass-house trial. Results showed that there was variability of response of each genotype to acidity and Fe toxicity. Therefore, assessment of soybean tolerance to acidity and Fe toxicity should be conducted by root growth. Based on selection index criteria, varieties of Lawit and Menyapa served as check tolerant varieties and showed lower growth than the 17 selected genotypes. In the field experiment, genotype MLGG 1087 was identified as the most tolerant and can serve as a gene resource tolerant to acid tidal swamp because it has the highest relative root growth on root dry weight, and the highest average of root and shoot dry weight.
Evaluation of Best Management Practices in Millsboro Pond Watershed Using Soil and Water Assessment Tool (SWAT) Model  [PDF]
Aditya Sood, William F. Ritter
Journal of Water Resource and Protection (JWARP) , 2010, DOI: 10.4236/jwarp.2010.25047
Abstract: The Inland Bays in southern Delaware (USA) are facing eutrophication due to the nutrient loading from its watershed. The source of nutrients in the watershed is predominantly agriculture. The Millsboro Pond, a sub-watershed within the Inland Bays basin, was modeled using the Soil and Water Assessment Tool (SWAT) model. It was found that the contribution of ground water from outside the watershed had a signifi-cant impact on the hydrology of the region. Once the model was calibrated and validated, five management scenarios were implemented, one at a time, to measure its effectiveness in reducing the nutrient loading in the watershed. Among the Best Management Practices (BMPs), planting winter cover crops on the agricul-ture land was the most effective method in reducing the nutrient loads. The second most effective method was to provide grassland riparian zones. The BMPs alone were not able to achieve the nutrient load reduc-tion as required by the Total Maximum Daily Loads (TMDLs). Two extra scenarios that involved in replac-ing agriculture land with forest, first with deciduous trees and then with high yielding trees were considered. It is suggested that to achieve the required TMDL for the watershed, some parts of the agricultural land may have to be effectively converted into the managed forest with some high yielding trees such as hybrid poplar trees providing cellulose raw material for bio fuels. The remaining agriculture land should take up the prac-tice of planting winter cover crops and better nutrient management. Riparian zones, either in form of forest or grasslands, should be the final line of defense for reducing nutrient loading in the watershed.
Developing a Framework to Measure Watershed Sustainability by Using Hydrological/Water Quality Model  [PDF]
Aditya Sood, William F. Ritter
Journal of Water Resource and Protection (JWARP) , 2011, DOI: 10.4236/jwarp.2011.311089
Abstract: A framework is built, wherein hydrological/water quality model is used to measure watershed sustainability. For this framework, watershed sustainability has been defined and quantified by defining social, environmental and biodiversity indicators. By providing weightage to these indicators, a “River Basin Sustainability Index” is built. The watershed sustainability is then calculated based on the concepts of reliability, resilience and vulnerability. The framework is then applied to a case study, where, based on watershed management principles, four land use scenarios are created in GIS. The Soil and Water Assessment Tool (SWAT) is used as a hydrology/water quality model. Based on the results the land uses are ranked for sustainability and policy implications have been discussed. This results show that landuse (both type and location) impact watershed sustainability. The existing land use is weak in environmental sustainability. Also, riparian zones play a critical role in watershed sustainability, although beyond certain width their contribution is not significant.
Management of Post-Traumatic Stress (PTSD) Dementia and Other Neuro-Degenerative Disease with Photo-Medicine: Clinical Experience and Case Studies  [PDF]
William Stephan, Ronald Aung Din, Louis J. Banas, John Thomas, Carolyn Kochert, Randy J. Lamartiniere, Carol Spooner, Gerard Pesca, Dudley Chewning Eddy
Open Journal of Psychiatry (OJPsych) , 2017, DOI: 10.4236/ojpsych.2017.74032
Abstract: Objective: Photobiomodulation (also known as Low Level Laser. LLLT or Cold Laser; Photo Medicine (PM)) has been a vital adjunct therapy in our clinical practice over 5 years, observations of improvement in cognition and personality were noted in several patients. As a result, selected patients with Alzheimer’s Disease, vascular dementia, post-traumatic brain injury and other neuro-degenerative diseases were treated at clinical practices in Buffalo, New York; Sarasota, Florida; Lafayette, Indiana; Phoenix, Az., and Baton Rouge, La. Over 60 patients were treated with an average of 4 times over an 8-day period all reported/exhibited improvement in their condition, except that two men who were in their seventies were in robust health but had no short-term memory and no improvement was observed. However, Theralase has developed a more efficacious system which will be more efficacious, due to increased power for ATP activation. Method: Over 150 patients with the above conditions were treated in various areas (depending on diagnosis) including the prefrontal cortex, temporal lobe, Hippocampus, and Circle of Willis for duration of two and one-half minutes every 48 hours for 5 - 6 treatments. We utilized the Theralase multi-probe (905 nm/660 nm) at 60 miliwatts. It utilizes 5 - 905 nm near infra-red diodes and 4 infra-red 660 laser diodes with a peak power of 50,000 milliwatts at peak and pulse duration of 200 nanoseconds [1]. The PTSD patients were evaluated utilizing the co-occurring disorders program screening and assessment form. Conclusion: Dementia patients exhibited varying degrees of improvement in cognitive function and personality, leading to improved quality of life and decreased caregiver burden. PTSD patients’ improvement was objectively measured by formal neuropsychological testing utilizing the form. All PTSD patients scored no emotional problems after 3 - 5 treatments and all experienced overall sense of well-being. One experienced return of ability to smell he had not had for 5 years. Similar results were reported in a Japanese study where 15 patients were followed for a year. This non-invasive and non-systemic modality of therapy could play a key role in treating progressive neurodegenerative conditions, improving quality of life, and reducing health care costs.
Using Mathematical Models in Decision Making Methodologies to Find Key Nodes in the Noordin Dark Network  [PDF]
William P. Fox, Sean F. Everton
American Journal of Operations Research (AJOR) , 2014, DOI: 10.4236/ajor.2014.44025
Abstract: A Dark Network is a network that cannot be accessed through tradition means. Once uncovered, to any degree, dark network analysis can be accomplished using the SNA software. The output of SNA software includes many measures and metrics. For each of these measures and metric, the output in ORA additionally provides the ability to obtain a rank ordering of the nodes in terms of these measures. We might use this information in decision making concerning best methods to disrupt or deceive a given dark network. In the Noordin Dark network, different nodes were identified as key nodes based upon the metric used. Our goal in this paper is to use methodologies to identify the key players or nodes in a Dark Network in a similar manner as we previously proposed in social networks. We apply two multi-attribute decision making methods, a hybrid AHP & TOPSIS and an average weighted ranks scheme, to analyze these outputs to find the most influential nodes as a function of the decision makers’ inputs. We compare these methods by illustration using the Noordin Dark Network with seventy-nine nodes. We discuss sensitivity analysis that is applied to the criteria weights in order to measure the change in the ranking of the nodes.
Comportamiento de pacientes tratados con sobredentaduras implantomucosoportadas en la consulta de Implantología Bucal de la Clínica Estomatológica Docente III Congreso del PCC. Matanzas
Blanco Mederos,Félix M; Abreu Pérez,Eddy;
Revista M??dica Electr?3nica , 2012,
Abstract: one of the therapeutic modalities of the oral prosthesis is the implantomucoussuported overdenture that rehabilitates the total edentulous with the possibility of a direct link of the prosthesis to the osteointegrated implants. we carried out a descriptive observational work, in the consultation of oral implantology, of the teaching stomatological clinic iii congreso del partido, in the perio february-march 2011. the universe was formed by 20 patients with implantomucoussuported overdentures, rehabilitated in the service of implantology. the higher number of patients was in the 51-56 years-old age group (25 %) with equal distribution in both genres. the inferior maxillary was the most treated (17 patients), for 85 %. from the 60 implants put in the mouth, 46 were put in the mandible, for 76 %, and the connection mean 95 % of the patients; the satisfaction level with the treatment was positive and only one patient was evaluated as negative. in the criteria of the authors this proposes a satisfactory option to patients with difficulties to carry mandibular conventional total prosthesis with a high level of satisfaction.
Prótesis híbrida: presentación de caso
Blanco Mederos,Félix M; Abreu Pérez,Eddy;
Revista M??dica Electr?3nica , 2011,
Abstract: the free ending removable prosthesis are those more subject to movements, because of the different forces acting on them in the functional excursions the patient makes in its daily activities when speaking, masticating, swallowing, etc. the splitting of these prostheses with the remnant abutment teeth serving as anchorage has been and is preoccupation of the prosthetics because of the traction exerted on them. in this work we present a case of the usage of “breaking forces” splitting means that have been studied very much, but almost never seen by the specialists, like residents forming in our field. we present the rehabilitation of a patient with hybrid prosthesis.
Comportamiento de pacientes tratados con sobredentaduras implantomucosoportadas en la consulta de Implantología Bucal de la Clínica Estomatológica Docente III Congreso del PCC. Matanzas Behavior of the patients treated with implantomucoussuported overdentures in the consultation of Oral Implantology at the Teaching Stomatological Clinic III Congreso del PCC. Matanzas
Félix M Blanco Mederos,Eddy Abreu Pérez
Revista M??dica Electr?3nica , 2012,
Abstract: Una de las modalidades terapéuticas de la prótesis bucal es la sobredentadura implantomucosoportada, la cual rehabilita al edente total con la posibilidad de una unión directa de la prótesis a los implantes osteointegrados. Se realizó un trabajo de tipo observacional, descriptivo, en la consulta de Implantología Bucal, de la Clínica Estomatológica Docente III Congreso del PCC, en los meses de febrero a marzo de 2011. El universo estuvo constituido por 20 pacientes con sobredentaduras implantomucosoportadas, rehabilitados en el servicio de implantología. El mayor número de pacientes perteneció al grupo de edad de 51 a 56 a os (25 %) e igual distribución en ambos sexos. El maxilar inferior fue el más tratado (17 pacientes), para un 85 %. De los 60 implantes colocados en boca, 46 de ellos fueron en la mandíbula, para un 76 %, y el medio de conexión el 95 % de los pacientes; el grado de satisfacción con el tratamiento fue positivo y solo un paciente se evaluó de negativo, lo que a criterio del autor propone una opción satisfactoria a pacientes con dificultad para portar prótesis totales convencionales mandibulares con nivel elevado de satisfacción. One of the therapeutic modalities of the oral prosthesis is the implantomucoussuported overdenture that rehabilitates the total edentulous with the possibility of a direct link of the prosthesis to the osteointegrated implants. We carried out a descriptive observational work, in the consultation of Oral Implantology, of the Teaching Stomatological Clinic III Congreso del Partido, in the perio February-March 2011. The universe was formed by 20 patients with implantomucoussuported overdentures, rehabilitated in the service of implantology. The higher number of patients was in the 51-56 years-old age group (25 %) with equal distribution in both genres. The inferior maxillary was the most treated (17 patients), for 85 %. From the 60 implants put in the mouth, 46 were put in the mandible, for 76 %, and the connection mean 95 % of the patients; the satisfaction level with the treatment was positive and only one patient was evaluated as negative. In the criteria of the authors this proposes a satisfactory option to patients with difficulties to carry mandibular conventional total prosthesis with a high level of satisfaction.
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