Results 41 to 50 of about 2,691,410 (286)

Oxidation of cellulose in pressurized carbon dioxide [PDF]

, 2009
This work presents first results upon oxidation of type II cellulose by nitrogen dioxide dissolved in carbon dioxide at high pressure. This reaction leads to oxidized cellulose, a natural-based bioresorbable fabric used for biomedical applications.
Montanari, Suzelei, Vignon, Michel, Camy, Séverine, Rattaz, Aurélie, Condoret, Jean-Stéphane   +4 more
core   +1 more source

Increased Left Ventricular Stiffness Impairs Exercise Capacity in Patients with Heart Failure Symptoms Despite Normal Left Ventricular Ejection Fraction

Cardiology Research and Practice, 2011
Aims. Several mechanisms can be involved in the development of exercise intolerance in patients with heart failure despite normal left ventricular ejection fraction (HFNEF) and may include impairment of left ventricular (LV) stiffness.
David Sinning, Mario Kasner, Dirk Westermann, Karsten Schulze, Heinz-Peter Schultheiss, Carsten Tschöpe   +5 more
doaj   +1 more source

Carbon dioxide baited trap catches do not correlate with human landing collections of Anopheles aquasalis in Suriname [PDF]

, 2011
Three types of carbon dioxide-baited traps, i.e., the Centers for Disease Control Miniature Light Trap without light, the BioGents (BG) Sentinel Mosquito Trap (BG-Sentinel) and the Mosquito Magnet® Liberty Plus were compared with human landing ...
Koenraadt, Constantianus Johanna Maria, Koenraadt, C.J.M., Hiwat-van Laar, H., Constantianus Johanna Maria Koenraadt, Hélène Hiwat, de Rijk, M., Hiwat, Hélène, Takken, Willem, Andriessen, Rob, de Rijk, Marjolein, Rob Andriessen, Rijk, M., de, Andriessen, R., Marjolein de Rijk, Takken, W., Willem Takken   +15 more
core   +1 more source

Effect of membrane on carbonation and carbon dioxide uptake ofChlorellasp.

MATEC Web of Conferences, 2017
Recent studies showed that as low as 5% CO2 increased microalgae growth. However, common bioreactor operation resulted in low carbonation due to poor CO2 mass transfer and this inhibited CO2 uptake of microalgae. Although bubbling increases mass transfer of CO2-O2 exchange, preserving high dissolved CO2 remains the most challenging of microalgae ...
Suali Emma, Sarbatly Rosalam, Anisuzzaman SM, Abd. Lahin Farhana, Asidin Mohd Asyraf, Jusnukin Tiffanyca   +5 more
openaire   +2 more sources

Organic–inorganic carbon coupling shapes carbon dioxide fluxes in seagrass ecosystems

Communications Earth & Environment
Seagrass meadows can remove atmospheric carbon dioxide through organic carbon production and storage, but they also alter seawater chemistry through calcium carbonate formation and dissolution.
Mariche B. Natividad, Wei-Jun Cai, Nina Bednaršek, Jian-Jhih Chen, Wen-Chen Chou   +4 more
doaj   +1 more source

Methods for Measuring Carbon Dioxide Uptake and Permanence: Review and Implications for Macroalgae Aquaculture

Journal of Marine Science and Engineering, 2023
Carbon dioxide removal (CDR) is gaining recognition as a necessary action in addition to emissions reduction to prevent some of the worst effects of climate change.
Deborah J. Rose, Lenaïg G. Hemery
doaj   +1 more source

Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research

FEBS Letters, EarlyView.
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley   +1 more source

Retraction Note: Capturing carbon dioxide as a polymer from natural gas

Nature Communications, 2016
Nature Communications 5: Article number: 3961 (2014); Published: 3 June 2014; Updated: 1 November 2016 In this Article, we reported the synthesis of nucleophilic sulfur- and nitrogen-containing porous carbons and their carbon dioxide uptake performance ...
Chih-Chau Hwang, Josiah J. Tour, Carter Kittrell, Laura Espinal, Lawrence B. Alemany, James M. Tour   +5 more
doaj   +1 more source

Dose‐dependent hepatotoxicity of hydrogen peroxide in HepG2 cells and its modulation by CYP450 induction

FEBS Open Bio, EarlyView.
NMR metabolomics revealed concentration‐dependent metabolic perturbations in HepG2 cells exposed to H2O2. Rifampicin pretreatment enhanced metabolic competence, attenuated toxin‐induced alterations and produced metabolite profiles more consistent with human liver physiology, supporting the use of CYP450‐induced HepG2 models for improved in vitro ...
Maren Jinks, Garth L. Maker, Emily C. Davies, Berin A. Boughton, Samantha Lodge   +4 more
wiley   +1 more source

Kinetics of absorption of carbon dioxide in aqueous piperazine solutions [PDF]

, 2006
In the present work the absorption of carbon dioxide into aqueous piperazine (PZ) solutions has been studied in a stirred cell, at low to moderate temperatures, piperazine concentrations ranging from 0.6 to 1.5 kmol m- 3, and carbon dioxide pressures up ...
Versteeg, G. F.,, Versteeg, G.F., van Aken, C., Kleingeld, T., Hogendoorn, J.A., Kleingeld, T.,, Hogendoorn, J. A., Versteeg, G. F., van Aken, C.,, Derks, P. W. J., Derks, P. W. J.,, Derks, P.W.J., Hogendoorn, J. A.,   +12 more
core   +2 more sources