Results 21 to 30 of about 20,037,007 (385)

Early Life Socioeconomic Circumstance and Late Life Brain Hyperintensities : A Population Based Cohort Study [PDF]

open access: yes, 2014
Funding: Image acquisition and image analysis for this study was funded by the Alzheimer's Research Trust (now Alzheimer's Research UK). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the ...
A Forsdahl   +38 more
core   +6 more sources

Relative validity of a semi-quantitative food frequency questionnaire for Singaporean toddlers aged 15–36 months

open access: yesBMC Nutrition, 2018
Background There is presently no simple tool for use in large epidemiological studies to understand the food and nutrient intakes of Asian toddlers. This study aimed to assess the relative validity of a semi-quantitative food frequency questionnaire ...
Cameron Allan   +4 more
doaj   +1 more source

Ontogeny and brooding strategy of the early Cambrian arthropod Isoxys minor from the Qingjiang biota

open access: yesFrontiers in Ecology and Evolution, 2023
†Isoxys is a worldwide distributed bivalved arthropod known almost exclusively from Cambrian Burgess Shale-type Lagerstätten. Outline analyses using 34 specimens of the iconic large bivalved arthropod †Isoxys minor from the Cambrian Stage 3 (~518 Ma ...
Jiaxin Ma   +7 more
doaj   +1 more source

Distinguishing borings and burrows in intraclasts [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
Hardgrounds are surfaces of synsedimentarily cemented carbonate beds that form at or near the seafloor. They are concentrated in particular periods of the geological record and their presence is closely linked to main climatic and biological events.
Yazhou Hu   +5 more
doaj   +1 more source

Early life factors and risk of childhood rhabdomyosarcoma. [PDF]

open access: yes, 2013
Although little is known about etiology of childhood rhabdomyosarcoma (RMS), early life factors are suspected in the etiology. We explored this hypothesis using linked data from the California Cancer Registry and the California birth rolls.
Anshu eShrestha   +6 more
core   +2 more sources

An encrusting kleptoparasite-host interaction from the early Cambrian

open access: yesNature Communications, 2020
Parasitic interactions are difficult to document in the fossil record. Here, Zhang et al. analyze a large population of a Cambrian brachiopod and show it was frequently encrusted by tubes aligned to its feeding currents and that encrustation was ...
Zhifei Zhang   +8 more
doaj   +1 more source

The morphological disparity, ecological evolution and palaeobiogeography of Palaeozoic hyoliths [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
Hyolitha is a group of extinct invertebrates, the most dominant benthic animals within the Cambrian evolutionary fauna and forming a part of the Palaeozoic evolutionary fauna.
Fan Liu   +5 more
doaj   +1 more source

Evidence of a metabolic memory to early-life dietary restriction in male C57BL/6 mice [PDF]

open access: yes, 2012
<p>Background: Dietary restriction (DR) extends lifespan and induces beneficial metabolic effects in many animals. What is far less clear is whether animals retain a metabolic memory to previous DR exposure, that is, can early-life DR preserve ...
A Ceriello   +46 more
core   +1 more source

Early-Life Environmental Exposures and Childhood Obesity: An Exposome-Wide Approach

open access: yesEnvironmental Health Perspectives, 2020
Background: Chemical and nonchemical environmental exposures are increasingly suspected to influence the development of obesity, especially during early life, but studies mostly consider single exposure groups.
M. Vrijheid   +32 more
semanticscholar   +1 more source

New Data on the Bivalved Arthropod Tuzoia From the Cambrian (Series 2, Stage 4) Guanshan Biota in Kunming, Yunnan, Southwest China

open access: yesFrontiers in Earth Science, 2022
The Guanshan Biota (Cambrian Series 2, Stage 4) is a typical Burgess Shale-type biota and is one of the most significant Cambrian Konservat-Lagerstätten from China.
Yichen Wu   +5 more
doaj   +1 more source

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