Now showing items 13-32 of 154

• #### Band structures of cylindrical AlN/GaN quantum dots with fully coupled piezoelectric models ﻿

(2010-12-31)
We study the coupled electro-mechanical effects in the band structure calculations of low dimensional semiconductor nanostructures (LDSNs) such as AlN/GaN quantum dots. Some effects in these systems are essentially nonlinear. ...
• #### Band structures of laterally coupled quantum dots, accounting for electromechanical effects ﻿

(2010-12-31)
In a series of recent papers we demonstrated that coupled electro-mechanical effects can lead to pronounced contributions in band structure calculations of low dimensional semiconductor nanostructures (LDSNs) such as quantum ...
• #### Berry phase and spin precession without magnetic fields in semiconductor quantum dots ﻿

(2019)
We investigate electric field control of spin manipulation through Berry phase in III-V semiconductor quantum dots. By utilizing degenerate and non-degenerate perturbation theories, we diagonalize the total Hamiltonian of ...
• #### Breast cancer dormancy can be maintained by small numbers of micrometastases ﻿

(2010-12-31)
Late relapse of breast cancer can occur more than 25 years after primary diagnosis. During the intervening years between initial treatment and relapse, occult cancers are maintained in an apparent state of dormancy that ...
• #### Brinicles as a case of inverse chemical gardens ﻿

(2013-12-31)
Brinicles are hollow tubes of ice from centimeters to meters in length that form under floating sea ice in the polar oceans when dense, cold brine drains downward from sea ice to seawater close to its freezing point. When ...
• #### Causality, 'superluminality', and reshaping in undersized waveguides ﻿

(2012-12-31)
We analyse the reshaping mechanism leading to apparently 'superluminal' advancement of a pulse traversing an undersized section of a waveguide. For frequencies below the first inelastic threshold (cut off one), there are ...
• #### Chemical-garden formation, morphology, and composition. I. Effect of the nature of the cations ﻿

(2011-12-31)
We have grown chemical gardens in different sodium silicate solutions from several metal-ion salts-calcium chloride, manganese chloride, cobalt chloride, and nickel sulfate-with cations from period 4 of the periodic table. ...
• #### Chemical-garden formation, morphology, and composition. II. Chemical gardens in microgravity ﻿

(2011-12-31)
We studied the growth of metal-ion silicate chemical gardens under Earth gravity (1 g) and microgravity (μg) conditions. Identical sets of reaction chambers from an automated system (the Silicate Garden Habitat or SGHab) ...
• #### Chemoinformatic-guided engineering of polyketide synthases ﻿

(2019)
Polyketide synthase (PKS) engineering is an attractive method to generate new molecules such as commodity, fine and specialty chemicals. A central challenge in PKS design is replacing a partially reductive module with a ...
• #### Classification of resonance Regge trajectories and a modified Mulholland formula ﻿

(2011-12-31)
We employ a simple potential model to analyze the effects which a Regge trajectory, correlating with a bound or a metastable state at zero angular momentum, has on an integral cross section. A straightforward modification ...
• #### Coarse-graining RNA nanostructures for molecular dynamics simulations ﻿

(2010-12-31)
A series of coarse-grained models have been developed for study of the molecular dynamics of RNA nanostructures. The models in the series have one to three beads per nucleotide and include different amounts of detailed ...
• #### Combining stochastic and deterministic approaches within high efficiency molecular simulations ﻿

(2013-12-31)
Generalized Shadow Hybrid Monte Carlo (GSHMC) is a method for molecular simulations that rigorously alternates Monte Carlo sampling from a canonical ensemble with integration of trajectories using Molecular Dynamics (MD). ...
• #### Common principles and best practices for engineering microbiomes ﻿

(2019)
Despite broad scientific interest in harnessing the power of Earth's microbiomes, knowledge gaps hinder their efficient use for addressing urgent societal and environmental challenges. We argue hat structuring research ...
• #### Complex angular momentum theory of state-to-state integral cross sections: Resonance effects in the $F + HD \to HF(v' = 3) + D$ reaction ﻿

(2015-12-31)
State-to-state reactive integral cross sections (ICSs) are often affected by quantum mechanical resonances, especially near a reactive threshold. An ICS is usually obtained by summing partial waves at a given value of ...
• #### Complex systems in finance: Monte Carlo evaluation of first passage time density functions ﻿

(2010-12-31)
Many examples of complex systems are provided by applications in finance and economics areas. Some of intrinsic features of such systems lie with the fact that their parts are interacting in a non-trivial dynamic manner ...
• #### Computational Analysis of Pulsed Radiofrequency Ablation in Treating Chronic Pain ﻿

(2019-06)
In this paper, a parametric study has been conducted to evaluate the effects of frequency and duration of the short burst pulses during pulsed radiofrequency ablation (RFA) in treating chronic pain. Affecting the brain and ...
• #### Computational aspects of Monte-Carlo simulations of the first passage time for multivariate transformed Brownian motions with jumps ﻿

(2013-12-31)
Many problems in science, engineering, and finance require the information on the first passage time (FPT) of a stochastic process. Mathematically, such problems are often reduced to the evaluation of the probability density ...
• #### Computer software for understanding resonances and resonance-related phenomena in chemical reactions ﻿

(2014-12-31)
In numerical modelling of chemical reactions one calculates the scattering matrix for the required values of energy and angular momentum. Having done so, one still faces the non-trivial task of extracting detailed information ...
• #### Computing the eigenvalues of realistic Daphnia models by pseudospectral methods ﻿

(2015-12-31)
This work deals with physiologically structured populations of the Daphnia type. Their biological modeling poses several computational challenges. In such models, indeed, the evolution of a size structured consumer described ...
• #### A concerted systems biology analysis of phenol metabolism in Rhodococcus opacus PD630 ﻿

(2019-06)
Rhodococcus opacus PD630 metabolizes aromatic substrates and naturally produces branched-chain lipids, which are advantageous traits for lignin valorization. To provide insights into its lignocellulose hydrolysate utilization, ...