Results 41 to 50 of about 135,395 (240)

Uniaxial compressive strength prediction and ratio parameter optimization of titanium tailings composite backfill materials using intelligent hybrid models

open access: yesDeep Underground Science and Engineering, EarlyView.
Based on the 90 datasets, ERT and four optimization algorithms were used to build four hybrid models to predict the UCS of the backfill body. The SMA‐ERT model was the most effective model, and it can reliably guide the design of the backfill ratio parameters. Abstract This study analyzed the feasibility of using titanium (Ti) tailings as a backfilling
Weijun Liu, Zida Liu, Zhixiang Liu
wiley   +1 more source

A new species of Bruchomyia (Diptera: Psychodidae) from caverns in the state of Minas Gerais, Brazil

open access: yesZoologia (Curitiba), 2012
Nine Neotropical species of Bruchomyia Alexander, 1920 have been previously described, all from South America. A new species of this rare genus, collected in caverns of the state of Minas Gerais, southeastern Brazil, is described and named Bruchomyia ...
Freddy Bravo, Ricardo Andrade Barata
doaj   +1 more source

Assigning sex to pre-adult stalk-eyed flies using genital disc morphology and X chromosome zygosity [PDF]

open access: yes, 2006
Background: In stalk-eyed flies ( Diopsidae) the eyes and antennae are laterally displaced at the ends of elongated eyestalks. Eyespan and the degree of sexual dimorphism in eyespan vary considerably between species and several sexually dimorphic species
Fowler, K.   +17 more
core   +1 more source

The matrilineal Turn: Wiradjuri matrilineal leadership, colonial disruption, and the work of cultural return

open access: yesFeminist Anthropology, EarlyView.
Abstract This article advances three claims regarding the matrilineal organization of Wiradjuri society in central New South Wales. Drawing on the late nineteenth and early twentieth century ethnographic record, it demonstrates that Wiradjuri descent, totem, moiety identity, and ceremonial authority were and are matrilineally organized, despite ...
Jessa Rogers
wiley   +1 more source

Noncanonical Nucleotides in the Genome Around the Maternal‐Zygotic Transition

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
In this paper, Kazzazi et al. provide a comprehensive review of the dynamics of nonconventional nucleotides in the genome during early developmental stages, hypothesizing a potential role for these nucleotides in the activation of the zygotic genome. ABSTRACT From the very moment of fertilization and throughout development, the cells of animal embryos ...
Latifa Kazzazy   +7 more
wiley   +1 more source

Reversed impacts by specialist parasitoids and generalist predators may explain a phase lag in moth cycles : a novel hypothesis and preliminary field tests [PDF]

open access: yes, 2013
Among cyclic populations of herbivores, inter-specific temporal synchrony has been attributed to both climatic factors and trophic interactions. In northern Europe, winter and autumnal moths undergo regular 9–11 year population cycles.
Ruohomäki, Kai   +4 more
core  

Genetic differentiation in Scottish populations of the pine beauty moth Panolis flammea (Lepidoptera: Noctuidae) [PDF]

open access: yes, 2005
Pine beauty moth, Panolis flammea (Denis & Schiffermüller), is a recent but persistent pest of lodgepole pine plantations in Scotland, but exists naturally at low levels within remnants and plantations of Scots pine.
Worley, K.   +13 more
core   +1 more source

Insect communities of late Pleistocene steppe–tundra and Holocene boreal forest ecosystems in central Yukon Territory, Canada

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Subfossil insect communities from the Quartz Creek site provide a detailed record of both Late Pleistocene steppe–tundra and Holocene boreal forest ecosystems in central Yukon Territory, Canada. Fifteen Pleistocene assemblages (marine isotope stages [MIS] 4 to 2) are dominated by steppe–tundra and dry‐tundra taxa, particularly the weevils ...
Scott L. Cocker   +4 more
wiley   +1 more source

Evolution and speciation [PDF]

open access: yes, 2008
Charles Darwin is the father of evolution as we know it today. In his book “The origin of species” he states that new species originate from ancestral species that change over time, and that the mechanism of the change is natural selection.
Boddum, Tina
core   +1 more source

Filth-Breeding Flies

open access: yesEDIS, 1997
This document provides an overview of filth-breeding flies in Florida, detailing their physical characteristics, behaviors, and habitats. It covers species such as the house fly, greenbottle fly, bluebottle fly, secondary screwworm fly, vinegar fly ...
P.G. Koehler, J.L. Castner
doaj   +1 more source

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