Results 21 to 30 of about 238,824 (292)

Ecological Observations on Predatory Coccinellidae (Coleoptera) in Southwestern Michigan [PDF]

open access: yes, 2017
Ecological observations on habitat utilization by thirteen species of predatory Coccinellidae were made at a southern Michigan site during 1989 and 1990. Most of species were common during both years and used both agricul- tural and uncultivated habitats.
Gage, S. H   +3 more
core   +2 more sources

Seasonal Variation in Plant Polyphenols and Related Bioactivities across Three Years in Ten Tree Species as Visualized by Mass Spectrometric Fingerprint Mapping

open access: yesMolecules, 2023
The currently changing climates and environments place plants under many types of stresses that affect both their survival and levels of chemical defenses.
Suvi Vanhakylä, Juha-Pekka Salminen
doaj   +1 more source

Sensitivity of the grassland-forest ecotone in East African open woodland savannah to historical rainfall variation [PDF]

open access: yes, 2014
. Fossil pollen records provide key insight into the sensitivity of terrestrial ecosystems to climate change at longer time scales. However, tracing vegetation response to relatively modest historical climate fluctuations is often complicated by the ...
Gelorini, Vanessa   +2 more
core   +1 more source

Epidemiologic survey of traumatic dental injuries in children seen at the Federal University of Rio de Janeiro, Brazil

open access: yesBrazilian Oral Research, 2010
This epidemiologic survey aimed at assessing the prevalence of traumatic dental injuries in children seen at the Federal University of Rio de Janeiro, Brazil. The records of a total of 111 children (aged 0 to 6 years) seen from 2004 to 2006 in the dental
Marina Alvine de Jesus   +4 more
doaj   +1 more source

Management of primary molars with irreversible pulpitis employing tampon pulpotomy: Report of three cases with 34‐month mean follow‐up

open access: yesClinical Case Reports, 2021
This study suggests that tampon‐based coronal pulpotomy using a calcium silicate–based biomaterial can be a reliable approach for the treatment of vital primary molars with irreversible pulpitis.
Saeed Asgary   +2 more
doaj   +1 more source

Effect of the sodium hypochlorite and citric acid association on smear layer removal of primary molars Efeito da associação de hipoclorito de sódio e ácido cítrico na remoção de "smear layer" de molares decíduos

open access: yesBrazilian Oral Research, 2005
This study aimed to assess the capacity of a sodium hypochlorite and citric acid (CA) association (the latter at different concentrations) in removing coronal smear layer (SL) of primary teeth.
Gabriela da Rosa Götze   +3 more
doaj   +1 more source

Deciduous enamel 3D microwear texture analysis as an indicator of childhood diet in medieval Canterbury, England [PDF]

open access: yes, 2016
This study conducted the first three dimensional microwear texture analysis of human deciduous teeth to reconstruct the physical properties of medieval childhood diet (age 1-8yrs) at St Gregory's Priory and Cemetery (11th to 16th century AD) in ...
Deter, Chris   +7 more
core   +3 more sources

Genome-Wide Identification of GAST Family Members and Their Potential Roles in Epicotyl Dormancy in Chinese Cork Oak (Quercus variabilis)

open access: yesPlants
Chinese cork oak (Quercus variabilis Blume) is a widespread tree species with high economic and ecological values. Chinese cork oak exhibits epicotyl dormancy, causing emergence heterogeneity and affecting the quality of seedling cultivation. Gibberellic
Yaochen Wang   +6 more
doaj   +1 more source

Functional Relationships Between Branch and Stem Wood Density for Temperate Tree Species in North America

open access: yesFrontiers in Forests and Global Change, 2020
Wood density is strongly related to key aspects of tree physiological performance. While many studies have examined wood density in different parts of trees, for a variety of reasons, there are very few studies that have compared within-tree density ...
David W. MacFarlane
doaj   +1 more source

Linking remote-sensing estimates of land cover and census statistics on land use to produce maps of land use of the conterminous United States [PDF]

open access: yes, 2001
Human use of the land has a large effect on the structure of terrestrial ecosystems and the dynamics of biogeochemical cycles. For this reason, terrestrial ecosystem and biogeochemistry models require moderate resolution (e.g., ≤0.5°) information on land
Belward   +21 more
core   +2 more sources

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