Browsing by Title
Now showing items 40841-40860 of 95891
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H++3.0: automating pK prediction and the preparation of biomolecular structures for atomistic molecular modeling and simulations
(2012-07)The accuracy of atomistic biomolecular modeling and simulation studies depend on the accuracy of the input structures. Preparing these structures for an atomistic modeling task, such as molecular dynamics (MD) simulation, ... -
H++: a server for estimating pK(a)s and adding missing hydrogens to macromolecules
(2005-07-01)The structure and function of macromolecules depend critically on the ionization (protonation) states of their acidic and basic groups. A number of existing practical methods predict protonation equilibrium pK constants ... -
H-Infinity Norm Calculation via a State Space Formulation
(Virginia Tech, 2013-01-21)There is much interest in the design of feedback controllers for linear systems that minimize the H-infty norm of a specific closed-loop transfer function. The H-infty optimization problem initiated by Zames (1981), ... -
H.U.B City Steps: Methods and early findings from a community-based participatory research trial to reduce blood pressure among African Americans
(2011-06-10)Background Community-based participatory research (CBPR) has been recognized as an important approach to develop and execute health interventions among marginalized populations, and a key strategy to translate research ... -
H1N1 and Seasonal Flu Vaccination: Interpreting the College Student Survey
(Virginia Tech, 2011)The Vaccination Research Group is interested in understanding the social and cultural contexts for this distrust and examining the themes and stories that are told in antivaccination narratives. -
An H5N1 Pandemic: The Virginia Tech Campus as a Model of State, National, and Global Emergency Preparedness
(Virginia Tech, 2013-05)Experts suggest the likelihood of another human influenza pandemic to be high, or maybe even inevitable. There’s a good chance that it could be H5N1, and the possible effects are worrisome. No one can know for sure when ... -
H2 model reduction for large-scale linear dynamical systems
(Siam Publications, 2008)The optimal H2 model reduction problem is of great importance in the area of dynamical systems and simulation. In the literature, two independent frameworks have evolved focusing either on solution of Lyapunov ... -
H∞ and LQG optimal control for the rejection of persistent disturbances: analysis, design and experiment
(Virginia Tech, 1992-02-05)This dissertation presents a discussion of the asymptotic behavior and estimation structure of the H∞ central controllers in terms of the well-known behavior of the LQG controller and gives some insight into the ... -
Habitable Walls, Courtyard Homes in Urban Places
(Virginia Tech, 2000-01-12)In the United States, the living urban environment in the last two centuries has almost completely disappeared. Dense urban environments as viable and normal places to live have become a thing of the past. Living in the ... -
Habitat and host plant effects on the seasonal abundance of Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) among fruit orchards in northern Virginia
(Virginia Tech, 2021-04-02)Halyomorpha halys (Stål) (Hemiptera: Pentatomidae), brown marmorated stink bug, is an invasive, polyphagous pest that has disrupted integrated pest management programs in Mid-Atlantic tree fruit orchards since 2010. The ... -
Habitat and Imperilment of the Candy Darter Etheostoma osburni in the New River Drainage, USA
(Virginia Tech, 2018-02-05)The streams of the southeastern United States are both hotspots for biodiversity and centers of imperilment. The specific spatiotemporal scales at which stressors impact biota are often unknown, partly due to inadequate ... -
Habitat and population dynamics of wolves and blackbuck in Velavadar National Park, Gujarat
(Virginia Tech, 1991-04-05)The management problem of allocating limited resources for conflicting habitat needs of 2 endangered species, (the wolf (Canis lupus pallipes) and the blackbuck (Antelope cervicapra)) at Velavadar National ... -
Habitat Associations and Demography of Small Mammals in 4 Forest Cover Types on Quantico Marine Corps Base, Virginia
(Virginia Tech, 1998-08-20)I examined small mammal demography and habitat associations in 4 forest cover types on Quantico Marine Corps Base, VA. Study sites included clearcut, shelterwood, mature-riparian, and mature-upland habitats. My primary ... -
Habitat Conservation Plan Implementation: Keeping Promises for Adaptive Management Within a "No Surprises" Policy
(Virginia Tech, 2005-10-21)Adaptive management is an approach to problem solving that acknowledges uncertainty. Adaptive management involves a systematic and rigorous process of learning from the outcomes of management actions, accommodating change ... -
Habitat conservation planning under the Endangered Species Act: is it ecosystem management?
(Virginia Tech, 1995-05-15)Habitat conservation planning under the Endangered Species Act has been compared to ecosystem management by Secretary of Interior, Bruce Babbitt. Yet, ecosystem management, an emerging paradigm for public lands management, ... -
Habitat Conservation: The dynamics of direct and indirect payments
(2001)This paper examines the dynamic efficiency of direct and indirect payments for habitat conservation, as well as the preferences of donors who make the payments. A direct (or performance) payment is an annual payment to a ... -
The Habitat Ecology of Bog Turtles (clemmys Muhlenbergii) in Southwestern Virginia
(Virginia Tech, 1997-06-24)I radiotracked 31 bog turtles (Clemmys muhlenbergii) from May 1995 to December 1996 at 4 study areas in southwestern Virginia. Radio location data were used to provide measures of annual activity, spatial distributions ... -
Habitat edges influence the distribution of nest predators for Seaside Sparrows, but not nest placement or success
(Oxford University Press, 2022-08-02)Nest failure for coastal marsh bird species is primarily caused by predation and nest flooding. As sea level rise makes nest flooding more likely, the threat of nest predation will constrain the potential adaptive responses ... -
Habitat evaluation and production of rock bass in two Virginia streams
(Virginia Polytechnic Institute and State University, 1985)The use of Habitat Suitability Index (HSI) models for fisheries impact assessment has not been field validated for most fish species. This research sought to test several of the fundamental assumptions inherent in applications ... -
Habitat models for predicting the occurrence of blotchside logperch (Percina burtoni) and tangerine darters (P. aurantiaca) in the North Fork Holston River and Little River, Virginia
(Virginia Tech, 1994-08-05)Basin-wide visual estimation techniques developed in the Pacific Northwest for small streams were modified to survey about 180 river kilometers (rkm) of the North Fork Holston River and about 16 rkm of lower Little River ...
