A5018750908- Chemistry and Chemical Engineering
- Science, Research, and Medicine
- History and advancements in chemistry
- Chemical Safety and Risk Management
- Plant Water Relations and Carbon Dynamics
- Biotechnology and Related Fields
- Plant responses to elevated CO2
- World Trade Organization Law
- scientometrics and bibliometrics research
- Innovation Policy and R&D
- Photosynthetic Processes and Mechanisms
- Recycling and Waste Management Techniques
- Risk and Safety Analysis
- Pesticide and Herbicide Environmental Studies
- Algal biology and biofuel production
- Atmospheric and Environmental Gas Dynamics
- Conflict of Laws and Jurisdiction
- Nuclear and radioactivity studies
- Global trade and economics
- Regulation and Compliance Studies
- European and International Contract Law
- Various Chemistry Research Topics
- International Environmental Law and Policies
- Health and Medical Research Impacts
- Biomedical Ethics and Regulation
University of New Mexico
2015-2025
Washington State University
2019
American Association of Critical-Care Nurses
2013
Indiana University Health
2013
HealthPartners
2013
Matanuska-Susitna Borough School District
2009
Hanson & Associates (United Kingdom)
2007
Australian National University
2001-2004
Smithsonian Environmental Research Center
2003
University of Wisconsin–Madison
1999-2001
Summary Leaf mesophyll conductance to CO 2 ( g m ) has been recognized be finite and variable, rapidly adapting environmental conditions. The physiological basis for fast changes in is poorly understood, but current reports suggest the involvement of protein‐facilitated diffusion across cell membranes. A good candidate this could Nicotiana tabacum L. aquaporin NtAQP1, which was shown increase membrane permeability Xenopus oocytes. objective present work evaluate its effect on vivo , using...
Photosynthesis is often limited by the rate of CO2 diffusion from atmosphere to chloroplast. The primary resistances for are thought be at stomata and photosynthesizing cells via a combination resulting aqueous solution as well plasma membrane both outer inner chloroplast membranes. In contrast with stomatal resistance, resistance biological membranes gas transport not widely recognized limiting factor metabolic function. We show that tobacco (Nicotiana tabacum) contain aquaporin Nt AQP1....
Cyanobacteria have developed an effective photosynthetic CO2 concentrating mechanism (CCM) for improving the efficiency of carboxylation by a relatively inefficient Rubisco. The development this CCM was presumably in response to decline atmospheric levels and rising O2, both which were triggered oxygenic photosynthesis cyanobacteria themselves. In past few years there has been rapid expansion our understanding genes responsible CCM. addition, recent availability complete cyanobacterial...
Summary Cellular exchange of carbon dioxide (CO 2 ) is extraordinary importance for life. Despite this significance, its molecular mechanisms are still unclear and a matter controversy. In contrast to other living organisms, plants physiologically limited by the availability CO . most plants, net photosynthesis directly dependent on diffusion from atmosphere chloroplast. Thus, it important analyze transport with regards effect photosynthesis. A mutation Arabidopsis thaliana AtPIP1;2 gene,...
ABSTRACT We describ an open leaf gas exchange system coupled to a tunable diode laser (TDL) spectroscopy enabling measurement of the respiratory CO 2 flux and its associated carbon isotope composition ( δ 13 C Rl ) every 3 min. The precision is comparable that traditional mass spectrometry techniques. from castor bean Ricinus communis L.) leaves tended be positively related ratio produced O consumed [respiratory quotient RQ )] after 24–48 h prolonged darkness, in support existing models....
Abstract Phenotyping for photosynthetic gas exchange parameters is limiting our ability to select plants enhanced carbon gain and assess plant function in current future natural environments. This due, part, the time required generate estimates of maximum rate ribulose‐1,5‐bisphosphate carboxylase oxygenase (Rubisco) carboxylation ( V c,max ) maximal electron transport J max from response photosynthesis A CO 2 concentration inside leaf air spaces C i ). To relieve this bottleneck, we...
Stomatal conductance (gs) impacts both photosynthesis and transpiration, is therefore fundamental to the global carbon water cycles, food production, ecosystem services. Mathematical models provide primary means of analysing this important leaf gas exchange parameter. A nearly universal assumption in such that vapour pressure inside leaves (ei) remains saturated under all conditions. The validity has not been well tested, because so far ei cannot be measured directly. Here, we test using a...
Ecologists and physiologists have documented extensive variation in water use efficiency (WUE) Arabidopsis thaliana, as well association of WUE with climatic variation. Here, we demonstrate correlations whole-plant transpiration carbon isotope composition (δ(13)C) among life history classes A. thaliana. We also a cuvette to examine patterns co-variation component traits δ(13)C. find that stomatal conductance (g s) explains more than does Overall, there was strong genetic correlation between...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTProcess Workshops - A New Model for InstructionDavid Hanson and Troy Wolfskill View Author Information Department of Chemistry, State University York at Stony Brook, NY 11794-3400Cite this: J. Chem. Educ. 2000, 77, 1, 120Publication Date (Web):January 2000Publication History Received3 August 2009Published online1 January 2000Published inissue 1 2000https://pubs.acs.org/doi/10.1021/ed077p120https://doi.org/10.1021/ed077p120research-articleACS...
Isoprene emission has been documented and characterized from species in all major groups of vascular plants. We report our survey that isoprene is much more common mosses ferns than later divergent land plants but absent liverworts hornworts. The light temperature responses Sphagnum capillifolium (Ehrh.) Hedw. are similar to those other increases thermotolerance S. the same extent seen higher as measured by chlorophyll fluorescence. a northern Wisconsin bog experienced large fluctuations...
RETURN TO ISSUEPREVNewsNEXTTOXIC RELEASE INVENTORYFirms make strides in cutting emissionsDAVID HANSONCite this: Chem. Eng. News 1993, 71, 22, 6–7Publication Date (Print):May 31, 1993Publication History Published online12 November 2010Published inissue 31 May 1993https://pubs.acs.org/doi/10.1021/cen-v071n022.p006https://doi.org/10.1021/cen-v071n022.p006newsACS PublicationsCopyright © 1993 American Chemical SocietyArticle Views7Altmetric-Citations-LEARN ABOUT THESE METRICSArticle Views are the...
Vascular plant leaf traits that influence photosynthetic function form the basis of mechanistic models carbon exchange. Given their unique tissue organization, bryophytes may not express similar patterns. We investigated relationships among tissue, shoot, and canopy traits, associations with characteristics in 10 Sphagnum species. Trait were organized around a primary dimension accounting for 43% variation 12 traits. There was no significant relationship between nitrogen content shoot...
Abstract Reduction of flux through photorespiration has been viewed as a major way to improve crop carbon fixation and yield since the energy‐consuming reactions associated with this pathway were discovered. This view supported by biomasses increases observed in model species that expressed artificial bypass photorespiration. Here, we present an overview about current attempts reduce photorespiratory losses provide suggestions for future research priorities.
In recent years, the effect of heat-induced electrical signalling on plant photosynthetic activity has been demonstrated for many species. However, underlying triggers resulting transient inhibition photosynthesis still remain unknown. To further investigate this phenomenon, we focused in our present study soybean (Glycine max L.) direct signal transmission leaf mesophyll conductance CO(2) diffusion (g(m) ) and detected a drastic decline g(m) following signal, whereas electron transport rate...
Unresolved medication discrepancies during hospitalization can contribute to adverse drug events, resulting in patient harm. Discrepancies be reduced by performing reconciliation; however, effective implementation of reconciliation has proven challenging. The goals the Multi-Center Medication Reconciliation Quality Improvement Study (MARQUIS) are operationalize best practices for inpatient reconciliation, test their effect on potentially harmful unintentional discrepancies, and understand...
Considerable progress has been made in ecological and evolutionary genetics with studies demonstrating how genes underlying plant microbial traits can influence adaptation even 'extend' to community structure ecosystem level processes. Progress this area is limited model systems deep genetic genomic resources that often have negligible impact or interest. Thus, important linkages between adaptations their consequences at organismal scales are lacking. Here we introduce the Sphagnome Project,...
Leaf-level gas exchange data support the mechanistic understanding of plant fluxes carbon and water. These inform our ecosystem function, are an important constraint on parameterization terrestrial biosphere models, necessary to understand response plants global environmental change, integral efforts improve crop production. Collection these using analyzers can be both technically challenging time consuming, individual studies generally focus a small range species, restricted periods, or...
Abstract The Chlamydomonas reinhardtii cia3 mutant has a phenotype indicating that it requires high-CO2 levels for effective photosynthesis and growth. It was initially proposed this defective in carbonic anhydrase (CA) key component of the photosynthetic CO2-concentrating mechanism (CCM). However, more recent identification genetic lesion as defect lumenal CA associated with photosystem II (PSII) raised questions about role either CCM or PSII function. To resolve CA, we re-examined...
Models and numerical simulations are relatively inexpensive tools that can be used to enhance economic competitiveness through operation system optimization minimize energy resource consumption, while maximizing algal oil yield. This work uses modified versions of the U.S. Environmental Protection Agency's Fluid Dynamics Code (EFDC) in conjunction with Army Corp Engineers' water-quality code (CE-QUAL) simulate flow hydrodynamics coupled growth kinetics. The model allows flexibility...