A5075208243- Mine drainage and remediation techniques
- Soil and Unsaturated Flow
- Groundwater flow and contamination studies
- Photonic and Optical Devices
- Atmospheric and Environmental Gas Dynamics
- Sugarcane Cultivation and Processing
- Soil Moisture and Remote Sensing
- COVID-19 Clinical Research Studies
- Semiconductor Lasers and Optical Devices
- Hydrology and Watershed Management Studies
- Tissue Engineering and Regenerative Medicine
- Water resources management and optimization
- Groundwater and Isotope Geochemistry
- Soil Carbon and Nitrogen Dynamics
- Pluripotent Stem Cells Research
- Advanced Fiber Optic Sensors
- Intensive Care Unit Cognitive Disorders
- Geophysical Methods and Applications
- Sepsis Diagnosis and Treatment
- Geophysical and Geoelectrical Methods
- Plant Water Relations and Carbon Dynamics
- Irrigation Practices and Water Management
- Mesenchymal stem cell research
- Landslides and related hazards
- Congenital heart defects research
St Peter's Hospital
2007-2023
NOSM University
2021-2022
Health Sciences North
2022
Ashford and St Peter's Hospitals NHS Foundation Trust
2022
St Peter's Hospital
2021
Monash University
2021
Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo
2021
University of Siena
2021
The George Institute for Global Health
2020
Wesley Hospital
2020
Abstract Disc permeameters are designed to measure hydraulic properties of field soils containing macropores and preferential flow paths particularly useful in soil management studies. We present here designs for disc both positive negative water supply heads. The effects the membrane contact material on permeameter performance examined using approximate quasi‐analytic solutions equation. This analysis provides criteria selection materials. Limitations caused by restricted air entry...
Estimates of characteristic times to approach steady state flow in multidimensional infiltration the landscape depend on magnitude and character capillary length scale λ c associated time t . Here we derive relationships between readily measured field properties sorptivity S hydraulic conductivity K or at two supply heads. We explore relations other macroscopic microscopic length, potential, scales. In addition, show that m with gives physically plausible estimates flow‐weighted mean pore...
Volumetric water content θ and soil electrical conductivity σ may be measured in situ using time domain reflectometry (TDR). The parallel‐wire or two‐wire transmission line TDR probes currently field use suffer from unwanted noise information loss due to impedance mismatch between the probe coaxial connecting cable. Here we describe symmetric, multiwire designed minimize these problems eliminate need for a balancing transformer device. Analysis of electric distributions around new shows that...
Analytic solutions are presented for a nonlinear diffusion‐convection model describing constant rate rainfall infiltration in uniform soils and other porous materials. The is based on the Darcy‐Buckingham approach to unsaturated water flow assumes simple functional forms soil diffusivity D (θ) hydraulic conductivity K which depend single free parameter C readily measured properties. These yield physically reasonable analytic moisture characteristics. relation between this models give...
Episodic acidification (pH <5) of estuarine tributaries caused by the oxidation sulfidic floodplain sediments is widespread in eastern Australia. Drainage and flood mitigation works promote export sulfuric acid dissolved aluminium iron into streams. This paper examines a tidal reach on Richmond River, New South Wales. Acid discharge controlled water balance, drainage shallow groundwater, floodgate operation. Floodgates store waters for more than six months. discharges ranged from short...
An analysis for scaling the exponential soil water diffusivity function, D(θ), from concurrent measurements of sorptivity and wet front advance is presented. This provides a field method measuring β, slope D(θ). For Bungendore fine sand in it was found that β = 3. contrary to absorption experiments on variety repacked soils have consistently 8 led suggestion may be “universal” value applicable all soils. Although function with 3 provided usable approximation over entire θ range, D(θ) data...
Significance A high-resolution genetic lineage-tracing study in mice reveals that cKit identifies multipotent progenitors of cardiac neural crest (CNC) origin. Normally, the proportion cardiomyocytes produced from this lineage is limited, not because poor differentiation capacity as previously thought, but stage-specific changes activity bone morphogenetic protein pathway. Transient antagonism efficiently directs mouse iPSCs toward CNC and, consequently, generation + CNCs with full to form...
Although mammalian cardiac regeneration can occur in the neonatal period, factors involved this process remain to be established. Because tissue and limb require concurrent reinnervation by peripheral nervous system, we hypothesized that also requires reinnervation.To test hypothesis is required for innate regeneration.We crossed a Wnt1-Cre transgenic mouse with double-tandem Tomato reporter strain identify neural crest-derived cell lineages including autonomic nerves heart. This approach...
Time domain reflectometry (TDR) is widely used for routine field monitoring of water content and salts in soils. Most estimates assume the TDR‐measured apparent relative permittivity, ϵ a , good approximation real component, ′ r soil's complex permittivity with magnitude being determined primarily by content. We examine this assumption show that influenced both imaginary components permittivity. Increases resulted from dc conductivity dielectric loss arising presence ions solution clay At...
Vascular cells contribute to organogenesis and tumorigenesis by producing unknown factors. Primary endothelial (PECs) provide an instructive platform for identifying factors that support stem cell tumor homeostasis. However, long-term maintenance of PECs requires stimulation with cytokines serum, resulting in loss their angiogenic properties. To circumvent this hurdle, we have discovered the adenoviral E4ORF1 gene product maintains survival facilitates organ-specific purification PECs, while...
A two-year study of the relationships between water chemistry, hydrology and climatology in areas acid sulfate soils has demonstrated that discharge sulfuric to estuaries is not dependent solely on magnitude a rainfall event. Large rain events did always produce significant changes small could large if prevailing conditions were suitable. The estuarine waters was found be position watertable, therefore available soil pore space, store acidic floodgated drains at time rainfall. These results...
In paper 1 (Broadbridge and White, this issue) an analytical nonlinear model for constant rate rainfall infiltration was proposed which promised considerable versatility. it a wide range of soil hydraulic properties are generated through the variation single free parameter C . Here three techniques advanced determining parameter. The first, one‐dimensional technique, involves simultaneous determination sorptivity wetting front position. second uses measured values surface water content at...
A simple method is presented for determining the radiation losses due to bending of an optical waveguide. This circumvents use continuous modes and reduces problem elementary antenna theory in which found from a known surface-current distribution. Practical results are given bent fibre circular cross-section. i.e. toroidal geometry, both HE11 mode rays overmoded fibre.
Background Circulating Endothelial Progenitor Cell (EPC) levels are reduced in diabetes mellitus. This may be a consequence of impaired mobilization EPC from the bone marrow. We hypothesized that under diabetic conditions, marrow to circulation is –at least partly– due dysfunction stromal compartment. Methods Diabetes was induced mice by streptozotocin injection. Sca-1+Flk-1+ were characterized and quantified flow cytometry at baseline after with G-CSF/SCF injections. In vivo hemangiogenic...
Soil surface topography profoundly influences runoff hydrodynamics, soil erosion, and retention of water. Here we describe an optical noncontact system for measuring topography. elevation is measured by projecting a laser beam onto the detecting position interception point. The axis detection oriented at small angle to incident beam. A low-power HeNe (Helium-Neon) used as source, photodiode array image detector ordinary 35-mm single lens reflex camera provides focus diode array. wide...
The quasi‐linear parameterization for unsaturated hydraulic conductivity K (Ψ) = s exp (αΨ), where is conductivity, Ψ soil water matric potential, saturated and α a porous material parameter, has been used in both stochastic deterministic models of flow materials. In the approach, assumed lognormally distributed, but volumetric capacity C d θ/ Ψ, with θ content, are normally distributed. We point out here that related to same internal pore geometry soil. This interrelationship ensures if...
Abstract Convenient and reliable techniques for estimating intact soil hydraulic properties are required predictions of soil‐water flow in the environment. The dependence sorptivity, S , on water supply potential, Ψ 0 is used here to find field diffusivity, D (θ), conductivity, K characteristic Ψ(θ) content, θ. approximations deconvoluting sorptivity examined critically using a simple parametric (θ) that gives analytic solutions applicable most known behavior. We show Parlange approximation...