Results 91 to 100 of about 408,574 (237)

Synthesis, Updated Characterization, and Reactivity of Low‐Valent Titanocene Complexes

European Journal of Inorganic Chemistry, EarlyView.
Syntheses and characterizations are provided for a series of low‐valent titanocene complexes including halotitanocene(III) dimers, [Cp2Ti(κ2‐DME)][BAr4] cations, and heterobimetallic [Cp2Ti(μ‐Cl)2AlR2]. Additionally, a monomeric titanacyclopropene complex featuring a pendent phosphine was prepared, and C─F bond activation upon reduction of [Cp{η5:κ2F2 ...
Griffin J. LaChapelle, James F. Britten, David J. H. Emslie   +2 more
wiley   +1 more source

Climate response to the 8.2 ka event in coastal California

Scientific Reports, 2017
A fast-growing stalagmite from the central California coast provides a high-resolution record of climatic changes synchronous with global perturbations resulting from the catastrophic drainage of proglacial Lake Agassiz at ca. 8.2 ka.
Jessica L. Oster, Warren D. Sharp, Aaron K. Covey, Jansen Gibson, Bruce Rogers, Hari Mix   +5 more
doaj   +1 more source

Selective N‐Functionalization of Pyrazoles

European Journal of Organic Chemistry, EarlyView.
This review traces the evolution of regioselective N‐functionalization strategies for pyrazoles, a key class of nitrogen heterocycles widely used in medicinal chemistry. Due to rapid tautomerism, N‐functionalization often lacks selectivity, leading to poor and unpredictable regioisomeric outcomes.
Lucas Popek, Matthias Schrader, Christopher J. Teskey   +2 more
wiley   +1 more source

Soil management calculator for predicting phosphorus losses under cropping systems in Western Australia [PDF]

, 2011
Agriculture in many parts of the world is coming under increasing pressure to develop management practices that will minimise phosphorus (P) loss to the environment.
Brennan, R., Anderson, G., Bell, R., Chen, W.   +3 more
core  

Serum methylmalonic acid levels and epilepsy prevalence: Association analysis, exploratory mediation, and clinical corroboration

Epileptic Disorders, EarlyView.
Abstract Objective This study aimed to investigate the association between methylmalonic acid (MMA) and epilepsy prevalence and to explore potential inflammatory and nutritional pathways underlying this association. Methods This study included adults aged ≥ 20 years from the National Health and Nutrition Examination Survey (NHANES) 2011–2014.
Ningyu Wei, Ning Huang, Haipeng Chen, Rui Tang, Yuan Cheng, Xiang Zhang   +5 more
wiley   +1 more source

Isotopic Differentiation (δ¹⁸O_PO4) of Inorganic Phosphorus among Organic Wastes for Nutrient Runoff Tracing Studies: A Summary of the Literature with Refinement of Livestock Estimates for Grand Lake St. Marys Watershed (Ohio)

Pollutants
The use of stable isotopes, specifically δ18OPO4 ratios, in differentiating potential sources of inorganic phosphorus (e.g., wastewater, septic, wild animals, domesticated animals, livestock, substrates, or commercial fertilizers) to watersheds is a ...
Melanie M. Marshall, Stephen J. Jacquemin, Aubrey L. Jaqueth   +2 more
doaj   +1 more source

Disturbance from restoration reseeding is associated with short‐term topsoil carbon loss and alters soil bacterial communities and functions in degraded alpine meadows of the Qinghai–Xizang Plateau

Grassland Research, EarlyView.
Restoration reseeding of degraded alpine meadows increased aboveground vegetation but was associated with short‐term topsoil carbon loss, coinciding with a microbial strategy shift from resident carbon‐preserving to carbon‐spending bacterial guilds. Abstract Background Restoration of degraded ecosystems is widely promoted as a nature‐based solution ...
Long‐Tao Zhu, Wen‐Min Shi, Guang‐Peng Qu, Xu Yin, Yong‐Kang Zhang, Ying‐Jie Sun, Zhen Luo, Wei Li, Chun‐Ping Zhang, Jie‐Jun Xi   +9 more
wiley   +1 more source

Measuring Temporal Variations of Nucleotide Pools in Microbial Granular Biofilm

Helvetica Chimica Acta, EarlyView.
The developed metabolomics workflow enables quantification of energy nucleotides in complex microbial biofilms. The method provides a foundation for investigating rapid metabolic responses to dynamic environmental conditions. ABSTRACT Microbial communities often face environmental fluctuations that occur on timescales much shorter than their growth ...
Jitske M. van Ede, Timothy Páez‐Watson, Mark C. M. van Loosdrecht, Martin Pabst   +3 more
wiley   +1 more source

The Significance of Resorption During Anoxic Mobilization of Phosphorus [PDF]

, 2009
Phosphorus has a fundamental role in the regulation of biotic cycles in both aquatic and terrestrial environments. Phosphorus is in fact the limiting nutrient for plants in the majority of the cases.
Scudiero , Elia
core  

Biochar and Hydrochar as Soil‐Based Carbon Sequestration Technologies: Implications for Greenhouse Gas Mitigation

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Biochar and hydrochar have emerged as promising carbon‐based amendments for enhancing soil carbon sequestration and mitigating greenhouse gas emissions. This review synthesizes and critically compares current knowledge on the production technologies, physicochemical properties, stabilization mechanisms, carbon persistence, and life‐cycle ...
João Marcos Rodrigues dos Santos
wiley   +1 more source