A. Griffiths results 391
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The effect of heterogeneous nucleation site availability on rock microstructure: a new perspective from EBSD investigationNARA Subscribed
In this study, we investigate the effect of the availability of sites for heterogeneous nucleation on the microstructure of moderately to highly undercooled synthetic trachybasalts under anhydrous and hydrous (2 wt% H₂O) conditions. Experiments were performed at 400 MPa by cooling melts from 1300 °C to target temperatures of 1150 °C, 1100 °C, and 1050 °C, followed by isothermal holds of 5 or 30 min. In one experimental series,...
Effects of maternal arsenic exposure on birth outcomes using harmonized data across three birth cohortsNARA Subscribed
Objectives To assess the association between urinary arsenic concentrations and birth outcomes by harmonizing data from three independent birth cohorts. Methods We harmonized and analyzed data from the Navajo Birth Cohort Study (NBCS), the New Hampshire Birth Cohort Study (NHBCS), and the PROTECT Center study based on Puerto Rico. Birth outcomes of interest included birth weight, head circumference, birth length, gestational a...
3D Texture Analysis of the Corpus Callosum in T1-Weighted MR Images of Children with a Traumatic Brain InjuryNARA Subscribed
Investigating traumatic brain injuries (TBI) in the developing brain is a challenging task. The superposition of an injury to the normal development trajectory can lead to brain impairments which are not obvious at diagnosis. T1-weighted MRI, acquired routinely post-injury, has the potential to better inform diagnosis, but is limited by qualitative assessment by radiologists. Using T1-weighted volume images, we investigated th...
Neurobiology of co-morbid stress and a western diet in mice: mitochondrial, proteomic and behavioral outcomesNARA Subscribed
Chronic stress (CS) and hyper-caloric diets promote affective disorders, however pathobiological interactions await definition. Neurobiological and behavioral influences of chronic stress (CS; 2 h/day restraint for 2 wks) were studied in male C57Bl/6 mice fed a control diet (CD; 12% kcal as fat/65% carbohydrate/23% protein) or Western diet (WD; 32% kcal fat/57% carbohydrate/11% protein) for 20 wks. CS induced weight loss and a...
The Critical Role of Coefficients: Updating Allometric Normalisation Constants for Modern Ecology and ModellingNARA Subscribed
Allometry, the scaling of traits or biological rates with body mass, is central to a wide range of ecological research including dynamic food web modelling. There has been extensive focus on exponents (3/4 scaling laws), but little on the coefficients (normalisation constants). Coefficients that have been used since 2006 are derived from limited data and dated methodologies. Here, we compiled a data set of over 1000 genera wit...
Overlooked seasonal groundwater nutrient fluxes rival anthropogenic point sources across a variable land‐use tidal riverNARA Subscribed
Understanding groundwater–surface water connectivity in tidal freshwater zones is essential for managing ecosystems within the riverine–estuarine continuum. Groundwater discharge is a key source of dissolved nutrient loads that can lead to eutrophication, deoxygenation, and other ecosystem imbalances in coastal environments. However, groundwater is an often‐overlooked nutrient delivery pathway, with limited studies quantifying...