Some extensions of a modeling system are described that facilitate higher level structure identification within a model. These structures, which often involve complementarity relationships, can be exploited by modern large scale mathematical programming algorithms. A specific implementation of an extended mathematical programming tool is outlined that communicates structure in a computationally...

There are formatting errors in Table 3, " Best GAMs (all models with weight > 0.05). " Please see the corrected Table 3 here. The publisher apologizes for the errors. open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Adhesive conidia of the nematophagous fungus, Drechmeria coniospora (Drechsler) W. Gams and Jansson (Moniliales: Deuteromycetes), would occasionally attach but never penetrate the infective stages of insect parasitic Neoaplectana carpocapsae, N. glaseri, N. bibionis, N. intermedia, and Heterorhabditis helfothidis (Rhabditida). However, adult and pre-infective stages of Neoaplectana spp. became ...

FLOPC++ is an open source algebraic modeling language implemented as a C++ class library. It allows linear optimization problems to be modeled in a declarative style, similar to algebraic modeling languages, such as GAMS and AMPL, within a C++ program. The project is part of COmputational INfrastructure for Operations Research (COIN-OR) and uses its Open Solver Interface (OSI) to achieve solver...

In the GRID technique one measures Doppler-broadened line profiles of γ transitions using the high resolution crystal spectrometers GAMS, which are installed at the high flux reactor of the ILL Grenoble. One of the essential applications of this technique is the measurement of nuclear state lifetimes. In the present contribution the precision and the principal limits of the technique are discus...

In this paper, we propose a new discrete-continuous codification of the Chu–Beasley genetic algorithm to address optimal placement and sizing problem distribution static compensators (D-STATCOM) in electrical grids. The discrete part determines nodes where D-STATCOM will be installed. continuous regulates their sizes. objective function considered study is minimization annual operative costs re...

Over the course of COVID-19 pandemic, Generalised Additive Models (GAMs) have been successfully employed on numerous occasions to obtain vital data-driven insights. In this paper we further substantiate success story GAMs, demonstrating their flexibility by focusing three relevant pandemic-related issues. First, examine interdepency among infections in different age groups, concentrating school...

Background Obesity is currently one of the major causes of ill health and it is clear that overeating is the cause of obesity. However, the actions of many endogenous factors that contribute to overeating are still not well understood. Gamma-aminobutyric acid (GABA)-ergic transmission has been shown to be of great importance for food intake regulation. The progesterone metabolite allopregnanolo...

Dynamic lot sizing problem is one of the significant problem in industrial units and it has been considered by many researchers. Considering the quantity discount in purchasing cost is one of the important and practical assumptions in the field of inventory control models and it has been less focused in terms of stochastic version of dynamic lot sizing problem. In this paper, stochastic dynamic...