Results 91 to 100 of about 188,345 (194)

How might epigenetics contribute to ecological speciation? [PDF]

, 2013
Speciation research has seen a renewed interest in ecological speciation, which emphasises divergent ecological selection leading to the evolution of reproductive isolation.
Ritchie, Michael G., Smith, Gilbert, Ritchie, Michael G.; id_orcid   +2 more
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Planktonic foraminifera iodine ∕ calcium ratio: is it a proxy for dissolved oxygen in the ocean? [PDF]

Biogeosciences
Direct observations indicate a declining trend in ocean oxygen concentrations, which is not quantitatively captured by models. The complexity of oxygenation variability, linked to both physical and biochemical parameters, must be investigated across ...
V. Guarinos, K. Tachikawa, M. Garcia, G. Siani, M. Revel, H. Schulz, F. Sierro, T. Chalk   +7 more
doaj   +1 more source

Inorganic iodine and bromine speciation in Arctic snow at picogram-per-grams levels by IC-ICP-MS

Journal of Analytical Science and Technology
Iodine and bromine play central roles in polar atmospheric chemistry: iodine influences the atmospheric oxidative capacity and can generate cloud condensation nuclei, while bromine participates in ozone depletion reactions, known as bromine explosions ...
Stefano Frassati, Elena Barbaro, Claudia Rossetti, Giulio Cozzi, Clara Turetta, Federico Scoto, Marco Roman, Matteo Feltracco, Kitae Kim, Carlo Barbante, Andrea Gambaro, Andrea Spolaor   +11 more
doaj   +1 more source

Iodine speciation in marine aerosols along a 15000-km round-trip cruise path from Shanghai, China, to the Arctic Ocean

, 2010
Environmental context.Iodine in the atmosphere plays an important role in troposphere ozone destruction and climate change. However, cycling of atmospheric iodine is still poorly understood because of uncertainties in iodine speciation in ...
Hui Kang, Hongxia Yang, Siqi Xu, Zhouqing Xie, Bing Li, Liguang Sun, Pengfei Zhang, Wei Liu   +7 more
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Soil–plant interactions regulating the mobility and acquisition of Zn, Fe, Se, and I: implications for crop biofortification strategies

Frontiers in Plant Science
Micronutrient deficiencies, particularly those involving zinc (Zn), iron (Fe), selenium (Se), and iodine (I), remain major constraints to human nutrition and food security.
Shirley Zevallos, Pedro Gutierrez-Vilchez, Pedro Gutierrez-Vilchez, Anyela Quispe, Cynthia de Oliveira, Everton Geraldo de Morais, Guilherme Lopes, Luiz Roberto Guimarães Guilherme   +7 more
doaj   +1 more source

Ensuring the Quality of Urinary Iodine Procedures [PDF]

Accurate and precise UI [urinary iodine] measurement is important to accurately assess the status of iodine nutrition in the US and around the world.

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Integrating Photoredox and Anion‐Binding Capabilities into a Metal–Organic Cage for Iodine Speciation and Sequestration

Aggregate
The management of iodine species, notorious for their environmental persistence and health risks, requires innovative materials capable of efficient capture and conversion.
Ruiyu Guan, Jesper D. Jensen, Shihang Liang, Gen Li, Yawei Liu, Roy Lavendomme, Bo W. Laursen, En‐Qing Gao, Dawei Zhang   +8 more
doaj   +1 more source

Silver Nanoparticle-Based Hybrid Nanomaterials for Monitoring and Treatment of Hospital Wastewater: Focus on Rare Earth Elements and Radiopharmaceutical Residues from Nuclear Medicine Department

Applied Sciences
Hospital wastewater has begun to act as an important source of emerging contaminants, including rare earth elements (REEs), mostly lanthanides, and radiopharmaceutical residues originating from diagnostic and therapeutic nuclear medicine procedures.
Alessandro Ovis, Ilaria Maria De Giorgio, Sofia Lemaire, Giovanna Iucci, Chiara Battocchio, Iole Venditti   +5 more
doaj   +1 more source

The Status of Iodine and Selenium in Waikato Soils [PDF]

, 2011
This thesis investigates the status of the essential trace elements iodine and selenium in Waikato soils. Soil samples (368) representing different Soil Orders, land uses and soil depths were examined.
McNally, Samuel Rae
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Salt intake and iodine status around the world [PDF]

Background: Salt reduction and universal salt iodisation programmes are implemented worldwide to prevent cardiovascular disease and iodine deficiency disorders, respectively.
Ji, Chen (Researcher in medicine)
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