As a swarm-based optimization heuristic, the Ant System (AS) was proposed to deal with Traveling Salesman Problem (TSP). Classifified as constructive approach, AS inspired by ants’ social behavior.In Practice, its implementation reveals three basic variants that exploit two operating models: fifirst “natural” model, where ants move and update pheromones, consideration of distances between towns...

Background: For psychiatric disorders, comorbidity is a rule rather than exception. Thus it is particularly important to study additive and multiplicative effects of multiple mental disorders on suicidal behaviors. Objectives: The aim of this study was to investigate the ethnic differences in multiplicative effects of mental disorders on suicidal ideation among Black adults in the United States...

The basic ant colony algorithm in the welding robot path planning, in the search process, prone to search for too long, low efficiency, easy to fall into the local optimal and other issues. In this paper, the basic ant colony algorithm is improved, and the Adadelta algorithm is introduced. By combining the basic ant colony algorithm and Adadelta algorithm, the probability of selecting the next ...

Community assembly is driven by multiple factors, including resource availability and habitat requirements. Litter nesting ants respond to food and nest site availability, and adding food and nests may increase ant species richness and abundance. However, litter decomposers share food resources with ants, and increasing food availability may speed decomposition processes, eliminating twigs and ...

Ant System, the first Ant Colony Optimization algorithm, showed to be a viable method for attacking hard combinatorial optimization problems. Yet, its performance, when compared to more fine-tuned algorithms, was rather poor for large instances of traditional benchmark problems like the Traveling Salesman Problem. To show that Ant Colony Optimization algorithms could be good alternatives to exi...

AINTEGUMENTA (ANT) was previously shown to be involved in floral organ initiation and growth in Arabidopsis. ant flowers have fewer and smaller floral organs and possess ovules that lack integuments and a functional embryo sac. The present work shows that young floral meristems of ant plants are smaller than those in wild type. Failure to initiate the full number of organ primordia in ant flowe...

This study investigated the effects of ant attendance on the parasitoid community and parasitism of lac insect Kerria yunnanensis aggregations in Yunnan province, China. We manipulated ant attendance to establish three treatments: (1) ant exclusion; (2) low ant attendance by several ant species; and (3) high ant attendance by Crematogaster macaoensis. Five parasitoid species were collected, wit...

This paper presents the proportional-derivative fuzzy controller for trajectory tracking of gripping mechanism with two degrees freedom. Aiming to achieve movement without sudden starting and stopping, a polynomial velocity profile is utilized. The African vultures optimization, as one latest metaheuristic algorithms, used obtain optimal input/output scaling gains proposed according selected fi...

Monkeypox is a zoonotic viral disease caused by virus belonging to Orthopoxvirus. The present in monkeys and small rodents such as squirrels, ant-eaters others. First human case was reported from Democratic Republic of the Congo 1970 had been only central western African countries before 2022. This year, first monkeypox confirmed on May 7, 2022 UK who travelled Nigeria. Thereafter, has multi-co...

We have identified the adenine nucleotide translocator (ANT) isoforms ANT1 and ANT2 that are present in the plasma membrane of mouse cerebellar neurons as novel binding partners of the cell adhesion molecule L1. The direct interaction between ANT and L1 is mediated by sites within the fibronectin type III domains of L1 and the first and third extracellular loops of the ANT proteins. We also sho...