Results 51 to 60 of about 1,232 (181)

Synthetic directed evolution for targeted engineering of plant traits.

open access: yes
Improving crop traits requires genetic diversity, which allows breeders to select advantageous alleles of key genes. In species or loci that lack sufficient genetic diversity, synthetic directed evolution (SDE) can supplement natural variation, thus ...
Mahfouz, Magdy M.   +2 more
core   +1 more source

Random Carbon Tax Policy and Investment Into Emission Abatement Technologies

open access: yesMathematical Finance, EarlyView.
ABSTRACT We analyze the problem of a profit‐maximizing electricity producer, subject to carbon taxes, who decides on investments into CO2$\rm CO_2$ abatement technologies. We assume that the carbon tax policy is random and that the investment in the abatement technology is divisible, irreversible, and subject to transaction costs.
Katia Colaneri   +2 more
wiley   +1 more source

Relative Arbitrage Opportunities With Interactions Among N Investors

open access: yesMathematical Finance, EarlyView.
ABSTRACT The relative arbitrage portfolio outperforms a benchmark portfolio over a given time‐horizon with probability one. With market price of risk processes depending on the market portfolio and investors, this paper analyzes the multi‐agent optimization of relative arbitrage opportunities in the coupled system of market and wealth dynamics.
Tomoyuki Ichiba, Nicole Tianjiao Yang
wiley   +1 more source

Microbiological quality and metal levels in wells and boreholes water in some peri-urban communities in Kumasi, Ghana. [PDF]

open access: yes, 2009
Many communities in Kumasi, Ghana, are increasingly dependent on boreholes and hand dug wells. The aim of this study was to examine the drinking water suitability of 6 wells and 3 boreholes in periurban communities in Kumasi, between December 2003 and ...
Adjei, B.   +3 more
core  

Multiscale modelling of cancer invasion and metastasis : integrating stochastic and continuum approaches [PDF]

open access: yes
By integrating key biological mechanisms at multiple scales, this thesis focuses on the development and analysis of mathematical models for cancer growth, invasion, and metastasis.
Katsaounis, Dimitrios
core   +1 more source

A Model of Strategic Sustainable Investment

open access: yesMathematical Finance, EarlyView.
ABSTRACT We study a problem of optimal irreversible investment and emission reduction formulated as a nonzero‐sum dynamic game between an investor with environmental preferences and a firm. The game is set in continuous‐time on an infinite‐time horizon.
Tiziano De Angelis   +2 more
wiley   +1 more source

Regulatory Context and Bureaucratic Policy Making: Illustrations From Payment System Regulation in Brazil

open access: yesRegulation &Governance, EarlyView.
ABSTRACT This study investigates how bureaucratic strategies for structuring the policy environment shape regulatory outcomes, focusing on the extent to which agencies achieve their original policy preferences. Drawing on resource dependence theory and bureaucratic politics, we conceptualize the policy environment in two dimensions: internal ...
João Pedro Haddad   +1 more
wiley   +1 more source

Likelihood Estimation for Stochastic Differential Equations with Mixed Effects

open access: yesScandinavian Journal of Statistics, EarlyView.
ABSTRACT Stochastic differential equations provide a powerful tool for modelling dynamic phenomena affected by random noise. When time series are observed for several experimental units, it is often the case that some of the parameters vary between the individual experimental units.
Fernando Baltazar‐Larios   +2 more
wiley   +1 more source

A study of the strategic environment of an R&D section within a larger organisation [PDF]

open access: yes, 2001
This work addresses the problem of how an R&D section should decide on a strategy to guide its work when there is no strategic direction supplied from above by the company.
Falkingham, Leslie T.
core  

Grocery Retail Location Patterns in Brno: Clustering, Inequality and Street Network Centrality

open access: yesTijdschrift voor Economische en Sociale Geografie, EarlyView.
Abstract This study aims to evaluate the spatial distribution and clustering patterns of grocery retail chains in Brno, Czech Republic, focusing on national and multinational stores. By employing Geographic Information Systems and advanced spatial analysis techniques, including the nearest neighbour method, standard deviational ellipse, Kernel density ...
Josef Kunc   +5 more
wiley   +1 more source

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