Abstract: A fiber-optic urea sensor based on surface plasmon resonance (SPR) and Mach-Zehnder interference (MZI) combined principle was designed and implemented. By plating gold film on the ...

Agricultural green development is an important issue for global sustainable development, and the efficient utilization of nitrogen fertilizers and environmental emission reduction have always been ...

Physicists at Osnabrück University have examined individual water molecules on the calcite surface in more detail. Their findings, published in the journal ACS Nano, are relevant for climate and ...

The growth of a seed into a seedling, a process known as germination, is the first stage of the plant life cycle. Seeds contain reserves of proteins and other nutrients that must be broken down into ...

Dr. Grace R. Bobkowski (Medicine): A 50-year-old woman was admitted to this hospital because of confusion. The patient had been in her usual state of health until 5 months before the current ...

Aliza Chasan is a Digital Content Producer for "60 Minutes" and CBSNews.com. She has previously written for outlets including PIX11 News, The New York Daily News, Inside Edition and DNAinfo. Aliza ...

Parents or caregivers should consult a doctor if their child of any age has repeated temperature readings above 104°F (40°C). However, most childhood fevers do not require treatment. Fevers are common ...

The most common method of measuring urease activity is to add a colorimetric assay agent for ammonia (e.g., Nessler’s reagent) to a solution of hydrolyzed urea. The absorbance of the solution at a ...

OMEX have been working with farmers, across the globe, to help sustainably feed a growing population for over 45 years. From solution to specialty liquid fertilisers, OMEX work with farmers to boost ...