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Jan 12, 2023Open AccessArticle
The ability to study bacteria at the single cell level has advanced our insights into microbial physiology and genetics in ways not attainable by studying large populations using more traditional culturing methods. To improve methods to characterize bacteria at the cellular level, we developed a new microfluidic platform that enables cells to be exposed to metabolites in a gradient of concentrations. By designing low-cost, three-dimensional devices with adhesive tapes and tailoring them for bact...
Electric Engineering
Biological Materials
Mycology
Biological Chemistry
Veterinary Medicine
Molecular Biology
Toxicology
Computer Engineering
Microbiology
Biochemistry
Agricultural Engineering
Biodiversity
Developmental Biology
Bioengineering
Environmental Sciences
Environmental Sciences
Biological Engineering
Biotechnology
Chemical Engineering & Technology
Hydrology
Genomics
Genetics
Food Science & Technology
Analytical Chemistry
Jan 12, 2023Open AccessArticle
The soybean cyst nematode (SCN), Heterodera glycines, is the most damaging pathogen of soybeans in the United States. To assess the severity of nematode infestations in the field, SCN egg population densities are determined. Cysts (dead females) of the nematode must be extracted from soil samples and then ground to extract the eggs within. Sucrose centrifugation commonly is used to separate debris from suspensions of extracted nematode eggs. We present a method using OptiPrep as a density gradie...
Veterinary Medicine
Taxonomy
Automata
Agricultural Engineering
Environmental Sciences
Environmental Sciences
Animal Behavior
Agricultural Science
Biological Engineering
Genomics
Chemical Engineering & Technology
Genetics
Food Science & Technology
Electric Engineering
Industrial Engineering
Computer Engineering
Biochemistry
Biodiversity
Bioengineering
Geology
Hydrology
Parasitology
Plant Science
Soil Science
Synthetic Biology
Agronomy
Apr 14, 2017Open AccessArticle
Access to safe drinking water is a fundamental requirement for good health and is also a human right. The monitoring of water supplies for the detection of faecal pollution is an important aspect for the detection of pathogenic bacteria, responsible for diseases such as gastroenteritis, cholera and bacillary dysentery thus representing serious health hazards. Most drinking water suppliers rely on faecal indicators, such as the well-established Escherichia coli (E. coli) or the total coliform enu...
Hydrology
Microbiology
Biophysics
Feb 06, 2017Open AccessArticle
In many developing countries, rapid urbanization, disaster risks and affectability pose a great problem. Uncontrolled developments will bring out the inherent risks related with high-density environments and inadequate infrastructure. Advances in mapping hazardous areas have created new opportunities for assessing population vulnerabilities, doing designs to withstand against destructive forces and reducing losses. The aim of this study is to evaluate and compare the most used methods including ...
Hydrology
Feb 06, 2017Open AccessArticle
In the study presented, to define monthly rainfall-runoff relation, a water budget model based on Budyko approach was used. Proposed five-parameter model requires only monthly mean precipitation and potential evapotranspiration data as input. The study region covers the Nif Creek located at the Gediz Basin. Model was calibrated with particle swarm optimization (PSO) algorithm. To validate the performance of model calibrated via PSO, statistical measures were assessed. The results derived from th...
Hydrology
Aug 18, 2016Open AccessArticle
This study focuses on the graphical and mathematical representations of some important hydrological datasets (annual and monthly mean flow, flood hydrographs) available for Dragoia hydrometric station, situated in the south of the upper sector of Desnatui river basin, the biggest first order tributary of Danube river between Jiu river and Cerna river. The data entries were evaluated after the frequential hydrology principles, the temporal scenario revealed by the calcula being correlated to the ...
Hydrology
Natural Geography
Aug 18, 2016Open AccessArticle
For centuries, the oasis dwellers of the Béni Ounif used techniques for acquisition of groundwater to meet the domestic needs of the population of Ksar and garden irrigation. The oasis dwellers were able to master the management of water through these processes. Despite a low annual rainfall, they were able to manage critical situations of prolonged droughts while protecting their environment. These ancient techniques such as traditional wells including foggaras have proven effective in the past...
Hydrology
Natural Geography
Aug 18, 2016Open AccessArticle
Bankfull hydraulic geometry relationships, also called regional curves, relate bankfull stream channel dimensions and discharge to watershed drainage area. This paper describes results of bankfull curve relationships developed for the temperate rainforests of the Southern Appalachian Mountains primarily on Western North Carolina Mountain streams in the Southeastern United States. Gauge stations for small and larger catchments were selected with a range of 10 to 50 years of continuous or peak dis...
Hydrology
Natural Geography
Geomorphology
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