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Nitrous oxide
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. In this research, we present the DOAS system using the Ce:LiCAF laser for determining SO2 gas concentration in the atmosphere. The Ce:LiCAF laser has a full width at half maximum of 2 nm with a wavelength range from 286 to 291 nm and a peak wavelength of 288.5 nm. The results show that the DOAS system accurately determines the gas concentration with a measurement error of 6%. This result can serve as the basis for developing practical DOAS systems with the ability to monitor a wide range of gasses and survey many other types of pollutants.
8p
dianmotminh02
03-05-2024
2
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Ebook "The periodic table" is a collection of short stories that elegantly interlace the author's experiences in Fascist Italy, and later in Auschwitz, with his passion for scientific knowledge and discovery. This Penguin Modern Classics edition of is translated by Raymond Rosenthal with an essay on Primo Levi by Philip Roth.
236p
coduathanh1122
27-03-2024
4
1
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Ebook "Ocean-atmosphere interactions of gases and particles" leading international experts come together to provide a state-of-the-art account of these exchanges and their role in the Earth-system, with particular focus on gases and particles.
366p
duongthandue0501
28-02-2024
5
1
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Nitrous oxide (N2O) is a gas used in medicine for its analgesic, anxiolytic and amnesic properties. It is a drug considered safe if adequately administered. In the literature, accidental N2O-related deaths are rare. They are mostly related to inhalation of this substance for recreational and autoerotic purposes; rarely are reported deaths due to incorrect administration of medical gas in anesthesia.
8p
vitiki
30-01-2024
4
2
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Nitrous oxide is a medical and household gas that has seen its use drift to recreational purpose among the young population in recent years. Significant neurological, hematological and psychiatric side effects, generally related to an induced functional vitamin B12 deficiency, have been described separately in the literature.
7p
vitiki
30-01-2024
5
2
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Part 2 book "Behavior management in dentistry for children" includes content: Local anesthesia; introduction to pharmacological techniques - a historical perspective; nitrous oxide oxygen inhalation sedation in children; minimal and moderate sedation agents; working with a dentist anesthesiologist; the use of general anesthesia in behavior management; management of emergencies associated with pediatric dental sedation; practical considerations and the dental team; the dental office.
142p
oursky04
05-09-2023
1
0
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Crop management practices in intensive vegetable production can influence nitrous oxide (N2O) emissions from soils. This study quantified seasonal N2O emissions and N2O emission intensities, and investigated the factors driving emissions in different vegetable management practices.
13p
viengels
25-08-2023
1
1
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This study aims to evaluate the effect of biochar application on soil nitrous oxide emissions. A pot experiment with broccoli (Brassica juncea) was set up to evaluate the effect of melaleuca biochar on N2O flux under net house conditions.
7p
vimalfoy
08-02-2023
4
1
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Rice is one of the most important staple foods not just to people in Asia, but around the world. To meet domestic and export demands, farmers in Southeast Asia (SEA) grow 2-3 crop cycles per year, which leaves only a short period for land preparation. Field open burning of rice straw has been widely practiced to quickly clear the surface biomass for the next crop planting.
7p
vicedric
08-02-2023
2
1
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In supercritical fluid chromatography (SFC), the variation of pressure, temperature and volumetric flowrate is most noticeable when the mobile phase contains only neat carbon dioxide. This can be explained by the compressibility of CO2 and introduces several difficulties to the work of chromatographers. The only flow parameter that is considered to be constant across the SFC system is the mass flow-rate.
7p
viginny
23-12-2022
7
3
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Recent studies have questioned our previous understanding on the effect of nitrous oxide on muscle relaxants, since nitrous oxide has been shown to potentiate the action of bolus doses of mivacurium, rocuronium and vecuronium. This study was aimed to investigate the possible effect of nitrous oxide on the infusion requirements of cisatracurium.
6p
viisaacnewton
26-04-2022
8
2
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To prevent endothelium and nerve lesions, tracheal tube and laryngeal mask cuff pressure is to be maintained at a low level and yet be high enough to secure air sealing. Method: In a prospective quality-control study, 201 patients undergoing surgery during anaesthesia (without the use of nitrous oxide) were included for determination of the cuff pressure of the tracheal tubes and laryngeal masks.
5p
viisaacnewton
26-04-2022
17
2
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For many long standing practices, the rationale for them is often lost as time passes. This is the situation with respect to the storage and handling of equimolar 50% nitrous oxide and 50% oxygen volume/ volume (v/v) mixtures.
5p
viisaacnewton
26-04-2022
14
1
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Nitrous oxide has a proven clinical efficacy in conscious sedation. At certain environmental concentrations it may pose a health risk to chronically exposed healthcare workers. The present pilot study aims at evaluating the exposure to nitrous oxide of dental ambulatory personnel of a pediatric hospital.
9p
vampires36
30-12-2021
14
0
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The increase in endotracheal tube cuff pressure due to nitrous oxide diffusion is a well-known risk during general anesthesia using nitrous oxide. We hypothesized that lubricating endotracheal tube cuffs with K-Y™ Jelly might inhibit the increase in cuff pressure that occurs during exposure to nitrous oxide.
7p
vampires36
30-12-2021
8
0
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The ideal fraction of nitrous oxide (N2O) in oxygen (O2) for rapid lung collapse remains unclear. Accordingly, this prospective trial aimed to determine the 50% effective concentration (EC50) and 95% effective concentration (EC95) of N2O in O2 for rapid lung collapse.
6p
vizhangzhidong
29-12-2021
9
1
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We previously demonstrated that lubrication of an endotracheal tube (ETT) cuff with K-Y™ jelly strongly and significantly inhibited the increase in cuff pressure during nitrous oxide (N2O) exposure in vitro.
8p
vizhangzhidong
29-12-2021
13
0
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Megaloblastic anemia or bone marrow changes could occur after prolonged nitrous oxide inhalation via vitamin B12 inactivation related DNA synthesis impairment. Previous researches have studied hematological changes with nitrous oxide exposure, but only in adults or adolescents. Pre-school age children with active hematopoietic red bone marrow are more vulnerable to potential side effects of nitrous oxide and might experience growth impairment.
8p
vidietmarhopp
28-12-2021
11
0
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Nghiên cứu thực hiện quan trắc liên tục các khí nhà kính carbon dioxide (CO2), nitrous oxide (N2O), methane (CH4) và carbon monoxide (CO) từ tháng 10 năm 2018 đến tháng 4 năm 2019 ở Thành phố Hồ Chí Minh (TP.HCM).
4p
viwinter2711
05-10-2021
24
4
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The problem starts where the major food driver is pointed as the major source of a greenhouse gas that needs attention towards emission reductions. A pace over reducing the nitrous oxide emissions can be done with application of soil amendments to the rice crop field.
4p
nguaconbaynhay10
22-01-2021
7
1
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