keyword
MENU ▼
Read by QxMD icon Read
search

CO2 removal

keyword
https://www.readbyqxmd.com/read/28636403/applying-precision-medicine-to-trial-design-using-physiology-extracorporeal-co2-removal-for-ards
#1
Ewan C Goligher, Marcelo B P Amato, Arthur S Slutsky
In clinical trials of therapies for ARDS, the average treatment effect in the study population may be attenuated because individual patient responses vary widely. This inflates sample size requirements and increases the cost and difficulty of conducting successful clinical trials. One solution is to enrich the study population with patients most likely to benefit based on predicted patient response to treatment (predictive enrichment). In this perspective, we apply the precision medicine paradigm to the emerging use of extracorporeal CO2 removal (ECCO2R) for ultra-protective ventilation in ARDS...
June 21, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28633912/life-cycle-assessment-and-life-cycle-costs-for-pre-disaster-waste-management-systems
#2
Yohei Wakabayashi, Tsai Peii, Tomohiro Tabata, Takashi Saeki
This study develops a method of environmental and economic evaluation of an integrated disaster waste management system that considers the spatial scale of removal, transport, and treatment of disaster waste. A case study was conducted on combustibles, which is a type of disaster waste derived from dwellings, in Mie Prefecture, Japan. First, we calculated the quantity and the spatial distribution of disaster waste derived from dwellings and tsunami debris produced as a result of a large-scale earthquake. The quantity of disaster waste was estimated as 7,178,000t with functioning flood-preventing facilities and 11,956,000t without functioning flood prevention facilities...
June 17, 2017: Waste Management
https://www.readbyqxmd.com/read/28631461/extracorporeal-co2-removal-in-the-icu-an-effective-treatment-awaiting-proper-indications
#3
Jean-Michel Arnal, Aude Garnero
No abstract text is available yet for this article.
June 14, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28628983/immobilized-oleaginous-microalgae-for-production-of-lipid-and-phytoremediation-of-secondary-effluent-from-palm-oil-mill-in-fluidized-bed-photobioreactor
#4
Benjamas Cheirsilp, Tipawan Thawechai, Poonsuk Prasertsan
Oleaginous microalga Nannochloropsis sp. was immobilized in alginate gel beads and cultivated under optimal conditions that their growth and lipid production were comparable to those of free cells. The immobilized cells were used in phytoremediation of secondary effluent from palm oil mill and easily recovered by simple sieving method. The immobilized cells contributed to removal of nitrogen and phosphorus >90% and CO2 mitigation >99%. They also gave the biomass and lipid production of 1.300±0.050g/L and 0...
June 14, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28626288/assessment-of-radicular-dentin-permeability-after-irradiation-with-co2-laser-and-endodontic-irrigation-treatments-with-thermal-imaging
#5
Heajin Cho, Robert C Lee, Kenneth H Chan, Daniel Fried
Previous studies have demonstrated that the permeability changes due to the surface modification of dentin can be quantified via thermal imaging during dehydration. The CO2 laser has been shown to remove the smear layer and disinfect root canals. Moreover, thermal modification via CO2 laser irradiation can be used to convert dentin into a highly mineralized enamel-like mineral. The purpose of this study is to evaluate the radicular dentin surface modification after CO2 laser irradiation by measuring the permeability with thermal imaging...
January 28, 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/28626285/selective-laser-ablation-of-carious-lesions-using-simultaneous-scanned-near-ir-diode-and-co2-lasers
#6
Kenneth H Chan, Daniel Fried
Previous studies have established that carious lesions can be imaged with high contrast using near-IR wavelengths coincident with high water absorption, namely 1450-nm, without the interference of stains. It has been demonstrated that computer-controlled laser scanning systems utilizing IR lasers operating at high pulse repetition rates can be used for serial imaging and selective removal of caries lesions. In this study, a point-to-point scanning system was developed integrating a 1450-nm diode laser with the CO2 ablation laser...
January 28, 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/28625987/metabolic-engineering-of-actinobacillus-succinogenes-provides-insights-into-succinic-acid-biosynthesis
#7
Michael T Guarnieri, Yat-Chen Chou, Davinia Salvachúa, Ali Mohagheghi, Peter C St John, Darren J Peterson, Yannick J Bomble, Gregg T Beckham
Actinobacillus succinogenes, a gram-negative, facultative anaerobe, exhibits the native capacity to convert pentose and hexose sugars to succinic acid (SA) with high yield as a tricarboxylic acid (TCA) cycle intermediate. In addition, A. succinogenes is capnophilic, incorporating CO2 into SA, making this organism an ideal candidate host for conversion of lignocellulosic sugars and CO2 to an emerging commodity bioproduct sourced from renewable feedstocks. In this work, we report the development of facile metabolic engineering capabilities in A...
June 16, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28623019/exogenous-addition-of-h2-for-an-in-situ-biogas-upgrading-through-biological-reduction-of-carbon-dioxide-into-methane
#8
Daniel Girma Mulat, Freya Mosbæk, Alastair James Ward, Daniela Polag, Markus Greule, Frank Keppler, Jeppe Lund Nielsen, Anders Feilberg
Biological reduction of CO2 into CH4 by exogenous addition of H2 is a promising technology for upgrading biogas into higher CH4 content. The aim of this work was to study the feasibility of exogenous H2 addition for an in situ biogas upgrading through biological conversion of the biogas CO2 into CH4. Moreover, this study employed systematic study with isotope analysis for providing comprehensive evidence on the underlying pathways of CH4 production and upstream processes. Batch reactors were inoculated with digestate originating from a full-scale biogas plant and fed once with maize leaf substrate...
June 13, 2017: Waste Management
https://www.readbyqxmd.com/read/28622082/comparing-the-effectiveness-of-fractional-co2-laser-and-the-combination-therapy-with-micro-needling-and-topical-10-trichloroacetic-acid-to-remove-infra-orbital-dark-circles-in-tehran-women
#9
Abbas Zamanian, Mahba Azizi, Mohamadreza Ghasemi, Elham Behrangi, Sedigheh Naeji
BACKGROUND: Infra-orbital dark circles in now identified as a cosmetic problem which should be considered in treatment issue. The present study aimed to assess and compare the clinical efficiency of the combination of micro-needling and 10% trichloroacetic acid (TCA) cream as well as carbon dioxide laser in the management of infra-orbital dark circles. METHODS: This randomized clinical trial was performed on women ranged 28 to 62 years that complained of infra-orbital dark circles...
June 16, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28621588/perioperative-single-site-veno-venous-extracorporeal-co2-removal-for-minimally-invasive-giant-bulla-resection
#10
Bassam Redwan, Christian Biancosino, Felix Giebel, Gabriele Woebker, Michael Eberlein, Servet Boeluekbas
Giant pulmonary bullae are rare and surgical management of patients with severe emphysema and advanced chronic obstructive lung disease (COPD) presenting with giant bullae can be very challenging. Previously, perioperative, two-site, high-flow, veno-venous extracorporeal membrane oxygenation (ECMO) was successfully utilized during giant bulla resection. Here we report the perioperative application of single-site, low-flow extracorporeal CO2 removal (ECCO2R) for minimally invasive thoracoscopic giant bulla resection...
June 1, 2017: Perfusion
https://www.readbyqxmd.com/read/28618384/a-fatty-acid-solvent-of-switchable-miscibility
#11
Qianqian Chen, Lei Wang, Gaihuan Ren, Qian Liu, Zhenghe Xu, Dejun Sun
Ion pair interactions were explored to design a fatty acid solvent of switchable miscibility with water. Fatty acids of medium length chains are immiscible with water but become miscible with water when ion pairs are formed with amines. The ion pairs become phase separated after bubbling CO2 into the solution due to the dissociation of the fatty acid-amine complexes. Ion pairs of caprylic acid (C8) and low toxic poly(oxypropylene) diamine (Jeffamine D-230) were characterized by FT-IR and (1)H NMR. Log Kow values and surface activity were used to understand the switchable solvent mechanism in removing and recovering oily contaminants...
June 7, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28618378/simultaneously-upgrading-biogas-and-purifying-biogas-slurry-using-cocultivation-of-chlorella-vulgaris-and-three-different-fungi-under-various-mixed-light-wavelength-and-photoperiods
#12
Weixing Cao, Xue Wang, Shiqing Sun, Changwei Hu, Yongjun Zhao
In order to purify biogas slurry and biogas simultaneously, three different fungi, Pleurotus geesteranus (P. geesteranus), Ganoderma lucidum (G. lucidum), and Pleurotus ostreatus (P. ostreatus) were pelletized with Chlorella vulgaris (C. vulgaris). The results showed that the optimal light wavelength ratio for red:blue was 5:5 for these three different fungi-assisted C. vulgaris, resulting in higher specific growth rate as well as nutrient and CO2 removal efficiency compared with other ratios. G. lucidum/C...
June 1, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28613072/ligand-and-metal-based-multielectron-redox-chemistry-of-cobalt-supported-by-tetradentate-schiff-bases
#13
Julie Andrez, Valentin Guidal, Rosario Scopelliti, Jacques Pécaut, Serge Gambarelli, Marinella Mazzanti
We have investigated the influence of bound cations on the reduction of cobalt complexes of redox active ligands and explored the reactivity of reduced species with CO2. The one electron reduction of [Co(II)((R)salophen)] with alkali metals (M = Li, Na, K) leads to either ligand-centered or metal-centered reduction depending on the alkali ion. It affords either the [Co(I)((R)salophen)K] complexes or the [Co(II)2(bis-salophen)M2] (M = Li, Na) dimers that are present in solution in equilibrium with the respective [Co(I)(salophen)M] complexes...
June 14, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28608896/cyclic-gas-phase-heterogeneous-process-in-a-metal-organic-framework-involving-a-nickel-nitrosyl-complex
#14
D Denysenko, D Volkmer
The cubic metal-organic framework MFU-4l ([Zn5Cl4(BTDD)3], H2-BTDD = bis(1H-1,2,3-triazolo[4,5-b],[4',5'-i])dibenzo[1,4]dioxin) featuring large pore apertures can be modified post-synthetically via partial or complete substitution of peripheral metal sites and chloride side-ligands, thus opening a route towards a large variety of functionalized MOFs. In this way, Ni-MFU-4l-nitrite (or Ni-MFU-4l-NO2) with an analytically determined chemical composition [Zn2.6Ni2.4(NO2)2.9Cl1.1(BTDD)3], containing accessible Ni-NO2 units, was prepared...
June 13, 2017: Faraday Discussions
https://www.readbyqxmd.com/read/28599888/cardiopulmonary-effects-of-pleural-insufflation-with-co2-during-two-lung-ventilation-in-dorsally-recumbent-anesthetized-horses
#15
Kaylee S Bohaychuk-Preuss, M Valentina Carrozzo, Tanya Duke-Novakovski
OBJECTIVE: To record the cardiopulmonary effects of pleural CO2 positive pressure insufflation in anesthetized horses. STUDY DESIGN: Prospective study. ANIMALS: Seven horses (mean ± standard deviation, 530.9 ± 68.1 kg) undergoing terminal surgery. METHODS: Horses were sedated with xylazine. Anesthesia was induced with ketamine-propofol and maintained with isoflurane, positive pressure ventilation, detomidine infusion, and butorphanol with the horses in dorsal recumbency...
January 10, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28599799/dry-syngas-purification-process-for-coal-gas-produced-in-oxy-fuel-type-integrated-gasification-combined-cycle-power-generation-with-carbon-dioxide-capturing-feature
#16
Makoto Kobayashi, Hiroyuki Akiho
Electricity production from coal fuel with minimizing efficiency penalty for the carbon dioxide abatement will bring us sustainable and compatible energy utilization. One of the promising options is oxy-fuel type Integrated Gasification Combined Cycle (oxy-fuel IGCC) power generation that is estimated to achieve thermal efficiency of 44% at lower heating value (LHV) base and provide compressed carbon dioxide (CO2) with concentration of 93 vol%. The proper operation of the plant is established by introducing dry syngas cleaning processes to control halide and sulfur compounds satisfying tolerate contaminants level of gas turbine...
June 6, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28590089/an-exceptionally-water-stable-metal-organic-framework-with-amide-functionalized-cages-selective-co2-ch4-uptake-removal-of-antibiotics-and-dyes-from-water
#17
Wei-Guang Jin, Wei Chen, Pei-Hang Xu, Xin-Wen Lin, Xiao-Chun Huang, Guang-Hui Chen, Fushen Lu, Xiao-Ming Chen
As the main organic pollutants in wastewater, antibiotics and organic dyes are harmful for environmental friendship and public health, and their removal is quite important but challenging. In this work, two three-dimensional high porous MOFs PCN-124-stu, namely [M2(PDBAD)(H2O)]n (M = Cu, Zn) has been synthesized and PCN-124-stu(Cu) is found to display excellent chemical and thermal stability. PCN-124-stu(Cu) was used as a host for efficient extraction of various organic dyes from water, especially the large size dye Coomassie brilliant blue, as well as fluoroquinolones in comparison with five chosen common MOFs and zeolite 13X as well as activated carbon...
June 7, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28581637/switchable-hydrophilicity-solvent-based-microextraction-combined-with-gas-chromatography-for-the-determination-of-nitroaromatic-compounds-in-water-samples
#18
Jamileh Rameshgar, Kobra Sadat Hasheminasab, Laleh Adlnasab, Hamid Ahmar
A simple, fast, sensitive and low-cost method was developed for the quantification of nitroaromatic compounds in water samples based on CO2 -assisted liquid-phase microextraction using a switchable-hydrophilicity solvent followed by gas chromatography detection. Dipropylamine was used as extraction solvent with switchable hydrophilicity that can be miscible or immiscible upon the addition or removal of CO2 as a reagent. Experimental parameters affecting the extraction efficiency such as the volume of acceptor phase, the volume of donor phase, pH of donor phase, ionic strength and extraction time were investigated...
June 5, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28572755/graded-hypercapnia-calibrated-bold-beyond-the-iso-metabolic-hypercapnic-assumption
#19
Ian D Driver, Richard G Wise, Kevin Murphy
Calibrated BOLD is a promising technique that overcomes the sensitivity of conventional fMRI to the cerebrovascular state; measuring either the basal level, or the task-induced response of cerebral metabolic rate of oxygen consumption (CMRO2). The calibrated BOLD method is susceptible to errors in the measurement of the calibration parameter M, the theoretical BOLD signal change that would occur if all deoxygenated hemoglobin were removed. The original and most popular method for measuring M uses hypercapnia (an increase in arterial CO2), making the assumption that it does not affect CMRO2...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28571870/numerical-simulation-study-on-air-quality-in-aircraft-cabins
#20
Yingjie Zhao, Bingrong Dai, Qi Yu, Haiqing Si, Gang Yu
Air pollution is one of the main factors that affect the air quality in aircraft cabins, and the use of different air supply modes could influence the distribution of air pollutants in cabins. Based on the traditional ceiling air supply mode used on the B737NG, this study investigated another 3 different kinds of air supply modes for comparison: luggage rack air supply mode, joint mode combining ceiling and luggage rack air supply, and joint mode combining ceiling and individual air supply. Under the above 4 air supply modes, the air velocity, temperature and distribution of air pollutants in a cabin full of passengers were studied using computational fluid dynamics (CFD), and carbon dioxide (CO2) and formaldehyde were selected as 2 kinds of representative air pollutants...
June 2017: Journal of Environmental Sciences (China)
keyword
keyword
97240
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"