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A pico-liter semi-automated screening method for morphological identification of microorganisms from environmental samples
Ms. Charmi Chande, Dr. Ravindra Phadke

An economically feasible microfabrication protocol was developed for fabricating micro features used for bacterial analysis from environmental samples like soil and green sulfur bacteria sample. Organisms were classified in 11 morphotypes by using open source Image analysis software named CMEIAS and the standardized protocol was confirmed by viable count and pure culture study

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Busted! First Detection of Steroid Hormones in Pacific Walrus Bones
Charapata P, Horstmann L, and Misarti N

The Pacific walrus (Odobenus rosmarus divergens) is a candidate species for the Endangered Species List because Arctic sea ice has declined significantly in the past decades. This project focuses on validating a method for extracting steroid hormones from archaeological, historical, and modern bone creating a baseline of hormone levels during different climate regimes.

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Experimental Evolution in Diatoms - Thermal longterm acclimation in two model diatom species
Katrin Schmidt1, Sinéad Collins2, Thomas Mock1

Experimental Evolution in two model Diatoms

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METHOD DEVELOPMENT FOR THE SIMULTANEOUS DETERMINATION OF METHYLMERCURY AND INORGANIC MERCURY IN SEAFOOD
Sergio Carneado, Ariane V. Zmozinski, Carmen Ibáñez-Palomino, Àngels Sahuquillo, José Fermín López-Sánchez, Márcia M. da Silva

This work reports the method development for the simultaneous determination of methylmercury (MeHg+) and inorganic mercury (iHg) species in seafood. The study focused on the extraction and quantification of MeHg+ by liquid chromatography coupled to on-line UV irradiation and cold vapour atomic fluorescence spectroscopy (LC-UV-HG-AFS), using HCl 4 mol L-1 as extractant agent.

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Relationships between Water Quality Constituents in the Delta and the Influence of Different Sources of Water
Richard A. Denton and Paul Hutton

Analysis of detailed grab sample data from San Francisco Bay and Delta and development of regression relationships between EC, TDS and water quality constituents such as chloride, bromide, sodium, calcium, sulfate, alkalinity and hardness. The relationships in the interior Delta vary depending upon the percentage contributions from seawater, agricultural drainage and freshwater inflows.

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Microextraction techniques combined with X-ray fluorescence spectrometry for determination of different metal ions in water
Karina Kocot (a), Beata Zawisza (a), Eva Marguí (b), Ignasi Queralt (c), Rafal Sitko (a)

In present work new preconcentration procedures combining microextraction techniques and X-ray fluorescence spectroscopy were developed. Proposed methodologies are promising tools for multielemental analysis enabling detection of natural pollutants in different water samples.

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Effects of aquaculture effluents on nitrogen characteristics in two Chinese estuaries
David Kaiser, Lucia S. Herbeck

The poster describes similarities and differences of the effects aquaculture effluents have on the nitrogen composition in estuarine waters of two sites in southern China

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APPLICATION OF LIQUID CHROMATOGRAPHY WITH UV DETECTION FOR DETERMINATION OF PLANT GROWTH REGULATOR IN COMMON PLANT FERTILIZERS
Borowczyk K., Wyszczelska-Rokiel M., Stachniuk J., Chwatko G., Glowacki R.

1. The methodology allows facile and accurate determination of IBA in common plant fertilizer samples.
2. The analytical figures of linearity, precision and recovery shown during the method validation procedure are well within the criteria for biological sample analysis.
3. In temperature -18, 4 and 25 °C the analyte stays stable for 6 h.
4. The assay should help in control of phytohormones concentration in plants and fertilizers.

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Examination of Pesticide Residues in Wine, Beer and Their Constituent Products Using High-Throughput Techniques to Maximize Extraction & Efficiency
Patricia Atkins, Matt Snyder

In this study, commercial red wine and beer samples were examined for their pesticide concentrations.

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Showing Results 11 - 20 of 47
Scientific News
Microchip Captures Clusters of Circulating Tumor Cells
Researchers have developed a microfluidic chip that can capture rare clusters of circulating tumor cells, which could yield important new insights into how cancer spreads.
Tiny Microbes With Potential To Cleanse Singapore’s Waterways
7-year study reveals Nature’s way of removing organic pollutants in raw water.
Using Microbial Communities to Assess Environmental Contamination
First there were canaries in coal mines, now there are microbes at nuclear waste sites, oil spills and other contaminated environments.
Nanomaterials In Sunscreens And Boats Leave Marine Life Vulnerable
Study shows that sea urchin embryos are more vulnerable to toxins when exposed to nanomaterials.
Diabetes Drug Found In Freshwater Is Potential Source Of Intersex Fish
Study shows exposure to metforim causes physical changes in male fish.
First Atlas Of Airborne Microbes Across US
Bacteria and fungal species were identified from outdoor dust samples collected from all 50 states.
Building Pollution Measurement Systems
Systems will help to improve Adirondack air quality and reduce incidence of asthma.
New Test To Revolutionise Disease Detection In People, Crops And Stock
A single-drop DNA test invented by UQ scientists could revolutionise the detection of diseases in humans, livestock and crops.
Tiny Optical Antennas: A Nano Revolution
Newly developed tiny optical antennas, which function like spotlights at the nanoscale, offer the potential to measure food safety, identify air pollutants and even quickly diagnose and treat deadly diseases, like cancer.
New Detector Sniffs Out Origins Of Methane
Instrument identifies methane’s origins in mines, deep-sea vents, and cows.
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