We investigate the effect of constant and periodic harvesting on the Beverton-Holt model in a periodically fluctuating environment. We show that in a periodically fluctuating environment, periodic harvesting gives a better maximum sustainable yield compared to constant harvesting. However, if one can also fix the environment, then constant harvesting in a constant environment can be a better op...

We investigate the steerability of two-qubit Bell-diagonal states under projective measurements by the steering party. In the simplest nontrivial scenario of two projective measurements, we solve this problem completely by virtue of the connection between the steering problem and the joint-measurement problem. A necessary and sufficient criterion is derived together with a simple geometrical in...

Pairs of spin1 2 particles are prepared in a Werner state (namely, a mixture of singlet and random components). If the random component is large enough, the statistical results of spin measurements that may be performed on each pair separately can be reproduced by an algorithm involving local “hidden” variables. However, if several such pairs are tested simultaneously, a violation of the Clause...

A generalized Beverton-Holt model is considered in which a parameter gamma characterizes the onset of density dependence. An evolutionary stable strategy analysis of this parameter, reported in Getz (1996), is developed further here, using invasion exponents and the strategy dynamics of Vincent et al. (1993). The parameter gamma is also allowed to be density dependent, and it is shown that the ...

Citation: Whomersley P, Van der Molen J, Holt D, Trundle C, Clark S and Fletcher D (2018) Modeling the Dispersal of Spiny Lobster (Palinurus elephas) Larvae: Implications for Future Fisheries Management and Conservation Measures. Front. Mar. Sci. 5:58. doi: 10.3389/fmars.2018.00058 Modeling the Dispersal of Spiny Lobster (Palinurus elephas) Larvae: Implications for Future Fisheries Management a...

Exponential procedures are widely used as forecasting techniques for inventory control and business planning. A number of modifications to the generalized exponential smoothing (Holt–Winters) approach to forecasting univariate time series is presented, which have been adapted into a tool for decision support systems. This methodology unifies the phases of estimation and model selection into jus...

In the present age of globalization, technology-revolution and sustainable development, the presence of seasonality in tourist arrivals is considered as a key policy issue that affects the global tourism industry by creating instability in the demand and revenues. The seasonal component in a time-series distorts the prediction attempts for policy-making. In this context, it is quintessential to...

Bali was one of the destinations frequently visited by tourists because it had natural beauty, especially in tourism sector. The number foreign coming to until 2019 increased, but there been a very significant decrease 2020. Forecasting future needed provide input or recommendations government and business people anticipating decisions taken process developing sector Bali. One forecasting metho...

holt-oram syndrome (hos) is a developmental disorder inherited in an autosomal-dominant pattern. affected organs are the heart and forelimbs with upper extremity skeletal defects and congenital heart malformation. in this study we present three cases of hos in the same family. in one of these three individuals we detected a transition of c to t (ctg-gtt, v205v) in exon 7 of the tbx5 gene. this ...