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Environment

Development and Application of Hydrological and Geomorphic Diversity Measures for Mountain Streams with Check and Slit-check Dams
submitted by majtobo 3 hours ago - Topic: Environment
Habitat diversity is frequently used as an indicator of ecosystem health, but it is still difficult to find a parameter that can indicate river health. In this study, we suggest methods for calculating both hydrological and channel-geomorphic-unit diversity as factors that represent the health of...



Spaghetti soup: The complex world of food waste behaviours
submitted by mokali 4 hours ago - Topic: Environment
There is growing awareness of the positive impact of reducing the amount of wasted food on greenhouse gas emissions, energy use, food and water security, and land use. In developed nations, food waste generated in homes is a large contributor to the total amount of food waste. The behaviours and ...

Functional ANOVA starting from discrete data: an application to air quality data
submitted by dramor 6 hours ago - Topic: Environment
A nonparametric functional approach is proposed to compare the mean functions of $k$ k samples of curves. In practice, curves data are usually collected in a discrete form and hence they must be pre-processed to use purely functional techniques. However, in the context of $k$ k -sample tests,...

Impact of Organosulfur Content on Diesel Fuel Stability and Implications for Carbon Steel Corrosion
submitted by tetas2095 6 hours ago - Topic: Environment
Ultralow sulfur diesel (ULSD) fuel has been integrated into the worldwide fuel infrastructure to help meet a variety of environmental regulations. However, desulfurization alters the properties of diesel fuel in ways that could potentially impact its biological stability. Fuel desulfurization mig...

Investigation of Mercury Methylation Pathways in Biofilm versus Planktonic Cultures of Desulfovibrio desulfuricans
submitted by tetas2095 6 hours ago - Topic: Environment
Biofilms can methylate mercury (Hg) at higher rates than unattached bacteria and are increasingly recognized as important Hg methylation sites in the environment. Our previous study showed that methylation rates in biofilm cultures were up to 1 order of magnitude greater than those in planktonic ...



Bioreduction of Hydrogen Uranyl Phosphate: Mechanisms and U(IV) Products
submitted by tetas2095 6 hours ago - Topic: Environment
The mobility of uranium (U) in subsurface environments is controlled by interrelated adsorption, redox, and precipitation reactions. Previous work demonstrated the formation of nanometer-sized hydrogen uranyl phosphate (abbreviated as HUP) crystals on the cell walls of Bacillus subtilis, a non-UV...

Drinking Water Disinfection Byproduct Iodoacetic Acid Induces Tumorigenic Transformation of NIH3T3 Cells
submitted by tetas2095 6 hours ago - Topic: Environment
Iodoacetic acid (IAA) and iodoform (IF) are unregulated iodinated disinfection byproducts (DBPs) found in drinking water. Their presence in the drinking water of China has not been documented. Recently, the carcinogenic potential of IAA and IF has been a concern because of their mutagenicity in b...

Marsh Wrens As Bioindicators of Mercury in Wetlands of Great Salt Lake: Do Blood and Feathers Reflect Site-Specific Exposure Risk to Bird Reproduction?
submitted by tetas2095 6 hours ago - Topic: Environment
Nonlethal sampling of bird blood and feathers are among the more common ways of estimating the risk of mercury exposure to songbird reproduction. The implicit assumption is that mercury concentrations in blood or feathers of individuals captured in a given area are correlated with mercury concent...

On the twenty-first-century wet season projections over the Southeastern United States
submitted by sflonniry2 7 hours ago - Topic: Environment
This paper reconciles the difference in the projections of the wet season over the Southeastern United States (SEUS) from a global climate model (the Community Climate System Model Version 3 [CCSM3]) and from a regional climate model (the Regional Spectral Model [RSM]) nested in the CCSM3. The CC...

Smart metering: enabler for rapid and effective post meter leakage identification and water loss management
submitted by xbb 7 hours ago - Topic: Environment
Periods of urban water scarcity in cities places pressure on government agencies and water utilities to improve water distribution system efficiency through reducing the amount of water lost in the network as well as deploying a range of demand management techniques to conserve existing supply. C...

Minimum quantity lubrication-MQL turning of AISI 4140 steel alloy
submitted by xbb 7 hours ago - Topic: Environment
A number of studies have shown that compared to dry machining; MQL technique substantially enhances cutting performance in terms of increasing tool life and improving the quality of the machined parts. But, there have been a few investigations about the influence of process parameters on the resu...

Tanshinone IIA and Baicalin inhibiting the formation of Benzo[a]pyrene and Benzo[a]pyrene induced cytotoxicity: Correlation with scavenging free radical
submitted by yfronq 7 hours ago - Topic: Environment
Benzo[a]pyrene (BaP), a ubiquitous environmental pollutant, is formed by incomplete combustion of organic materials, and causes oxidative damage to cells and tissues due to reactive oxygen species (ROS). The purpose of this study is to investigate the inhibition of Tanshinone IIA and Baicalin on ...

Occular and dermal toxicity of Jatropha curcas phorbol esters
submitted by morteno 8 hours ago - Topic: Environment
Jatropha curcas seeds are a promising feedstock for biodiesel production. However, Jatropha seed oil and other plant parts are toxic due to the presence of phorbol esters (PEs). The ever-increasing cultivation of toxic genotype of J. curcas runs the risk of increased human exposure to Jatropha pr...

Cannibalism, optimal egg size and vulnerable developmental stages in insect predators
submitted by sflonniry2 9 hours ago - Topic: Environment
Cannibalism in insect predators is widely reported and commented on. However, the reasons for the high levels of cannibalism observed, the vulnerability of certain developmental stages, and its adaptive significance is poorly understood. Here we show that unlike in parasitoids there could be adva...

Relationship between landscape composition and the abundance of aphids and their natural enemies in crop fields
submitted by sflonniry2 9 hours ago - Topic: Environment
We investigated, over the course of two years, the importance of landscape context on the abundance of aphids and  their natural carabid enemies, which may help to develop effective strategies for reduction of aphid outbreaks in agricultural landscapes. This was undertaken in 12 wheat fields and...






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