Results 31 to 40 of about 893,569 (143)
The solution space structure of planted constraint satisfaction problems with growing domains [PDF]
Planting a solution into the random RB model, which is a prototype of random constraint satisfaction problem (CSP) with growing domains, can generate very hard satisfiable CSP benchmarks. We study the solution space structure of the planted RB model. With constraint density growing, we find that this model goes through four phase transitions.
arxiv +1 more source
Clostridium (Clostridioides) difficile infection (CDI) is associated with dysbiosis. C. difficile has a characteristic propensity to persist and recur 1 to 4 weeks after treatment, but the mechanism is unknown. We hypothesized that C.
Charles Darkoh+3 more
doaj +1 more source
Adaptive Transfer Learning for Plant Phenotyping [PDF]
Plant phenotyping (Guo et al. 2021; Pieruschka et al. 2019) focuses on studying the diverse traits of plants related to the plants' growth. To be more specific, by accurately measuring the plant's anatomical, ontogenetical, physiological and biochemical properties, it allows identifying the crucial factors of plants' growth in different environments ...
arxiv
Flora of the Ushkurmynker ridge and adjacent territories (East Kazakhstan), Report 1
For the first time, a list of higher vascular plants of the natural flora of the Ushkurmynker ridge is presented. The list is based on literature data and materials collected during our field surveys and includes 127 species belonging to 94 genera and 37
Gleb A. Bolbotov+2 more
doaj +1 more source
Fruit harvesting: A potential threat to the persistence, spatial distribution, and establishment of plants [PDF]
Plant-frugivore interactions play a central role for plant persistence and spatial distribution by promoting the long-range dispersal of seeds by frugivores. However, plant-frugivore interactions are increasingly being threatened by anthropogenic activities.
arxiv
Pollinator foraging flexibility and coexistence of competing plants [PDF]
We use the optimal foraging theory to study coexistence between two plant species and a generalist pollinator. We compare conditions for plant coexistence for non-adaptive vs. adaptive pollinators that adjust their foraging strategy to maximize fitness. When pollinators have fixed preferences, we show that plant coexistence typically requires both weak
arxiv +1 more source
Ethnoveterinary use of plants dates back to ancient times. This study aimed to validate purported efficacy of Sericocomopsis hildebrandtii and a concoction of Carissa edulis and Ximenia americana in treating Taenia solium cysticercosis in pigs.
Mwemezi L. Kabululu+2 more
doaj +1 more source
Study on the relict flora of Lozenska Mountain [PDF]
The purpose of this study is to make an inventory of the relicts in the flora of Lozenska Mt., to clarify their origin, taxonomical, ecological and phytogeographical structure and to evaluate their role for the formation of the contemporary flora and ...
Plamen Glogov
doaj +3 more sources
A Multi-Plant Disease Diagnosis Method using Convolutional Neural Network [PDF]
A disease that limits a plant from its maximal capacity is defined as plant disease. From the perspective of agriculture, diagnosing plant disease is crucial, as diseases often limit plants' production capacity. However, manual approaches to recognize plant diseases are often temporal, challenging, and time-consuming.
arxiv
The effects of psammophilous plants on sand dune dynamics [PDF]
Psammophilous plants are special plants that flourish in sand moving environments. There are two main mechanisms by which the wind affects these plants: (i) sand drift exposes roots and covers branches--the exposed roots turn into new plants and the covered branches turn into new roots; both mechanisms result in an enhanced growth rate of the ...
arxiv +1 more source