scholarly journals Carbon dioxide (CO2) levels this century will alter the protein, micronutrients, and vitamin content of rice grains with potential health consequences for the poorest rice-dependent countries

2018 ◽  
Vol 4 (5) ◽  
pp. eaaq1012 ◽  
Author(s):  
Chunwu Zhu ◽  
Kazuhiko Kobayashi ◽  
Irakli Loladze ◽  
Jianguo Zhu ◽  
Qian Jiang ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Health Consequences ◽  
Potential Health ◽  
Rice Grains ◽  
Vitamin Content ◽  
Co2 Levels ◽  
Carbon Dioxide Co2

scholarly journals Air quality in swine growing and finishing facilities with different building typologies

2017 ◽  
Vol 21 (5) ◽  
pp. 339-343
Author(s):  
Daiane Cecchin ◽  
Alessandro T. Campos ◽  
Vasco F. da Cruz ◽  
Francine A. Sousa ◽  
Pedro I. S. Amaral ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Air Quality ◽  
Water Depth ◽  
Sound Pressure ◽  
Average Concentration ◽  
Co2 Concentrations ◽  
Significant Difference ◽  
Co2 Levels ◽  
The One ◽  
Carbon Dioxide Co2

ABSTRACT The objective of this study was to evaluate the concentration of gases in three swine growing and finishing facilities with different building typologies, regarding floor and dividers. The experiment compared three treatments: pen with water depth, pen with partially slotted floor on the sides, and pen with partially slotted floor on sides and in the center. Measurements of instantaneous concentrations of ammonia (NH3 ppm) and carbon dioxide (CO2 ppm) were taken at animal level. The levels of sound pressure (dB) at animal level and at 1.50 m from the floor were also recorded. It was observed that the pen with water depth was the one with the highest average concentration of NH3. Although there was a significant difference in CO2 concentrations, the observed values are within the limits allowed by the Brazilian standards; thus, it is assumed that the facilities do not cause discomfort in relation to CO2 levels. The pen with water depth possibly caused discomfort to the animals, since the NH3 concentration was above the values that can cause problems to the animals, according to the recommendation of the literature. There was no influence of the type of pen on the sound pressure at any time.

scholarly journals Experimental Proof that Carbon Dioxide does NOT Cause Global Warming

2020 ◽  
Vol 5 (3) ◽  
pp. p91
Author(s):  
Burl Henry
Keyword(s):  
Carbon Dioxide ◽  
Global Warming ◽  
Sulfur Dioxide ◽  
Atmospheric Carbon Dioxide ◽  
Climatic Effect ◽  
Experimental Proof ◽  
Aerosol Pollution ◽  
Co2 Levels ◽  
Atmospheric Carbon ◽  
Carbon Dioxide Co2

Multiple instances of reductions in atmospheric Carbon Dioxide (CO2) and Sulfur Dioxide (SO2) levels were examined, and it was found that the only climatic effect was from reduced levels of anthropogenic SO2 aerosol pollution in the atmosphere. There were no instances of the hypothesized cooling from reduced CO2 levels.

scholarly journals Electroreduction of Carbon Dioxide to Formate using Highly Efficient Bimetallic Sn-Pd Aerogels

2022 ◽  
Author(s):  
Maryam Abdinejad ◽  
Mozhgan Khorasani-Motlagh ◽  
Meissam Noroozifar ◽  
Heinz-Bernhard Kraatz
Keyword(s):  
Carbon Dioxide ◽  
Electrochemical Reduction ◽  
Atmospheric Co2 ◽  
Highly Efficient ◽  
Commercial Scale ◽  
Co2 Levels ◽  
Carbon Dioxide Co2

Electrochemical reduction of carbon dioxide (CO2) to valuable materials is a promising approach to supress atmospheric CO2 levels. In order to bring this strategy to a commercial scale, the design...

PERANCANGAN PROTEKSI KEBAKARAN OTOMATIS PADA KAPAL BERBASIS ARDUINO

2018 ◽  
Vol 1 (2) ◽  
pp. 1-8
Author(s):  
Dody Hidayat
Keyword(s):  
Carbon Dioxide ◽  
Fire Extinguisher ◽  
Carbon Dioxide Co2

Kebakaran dapat terjadi dimana saja salah satunya dapat terjadi di alat transportasi air yakni kapal. Kebakaran selalu menyebabkan hal-hal yang tidak diinginkan baik kerugian material maupun ancaman keselamatan jiwa manusia. Seiring dari kejadian tersebut musibah kecelakaan kapal yang disebabkan oleh bahaya kebakaran sangatlah mungkin terjadi. Salah satu yang dapat mencegah kejadian kebakaran pada kapal haruslah dapat mendeteksi dini kebakaran tersebut. Untuk mendeteksi dini terjadinya kebakaran dikapal maka dirancanglah sebuah alat proteksi kebakaran otomatisberbasis adruino. Dimana Arduino merupakan board yang memiliki sebuah mikrokontroller sebagai  otak kendali sistem. Sistem otomatisasi atau controller tidak akan terlepas dengan apa yang disebut  dengan ‘sensor’. Sensor adalah sebuah alat untuk mendeteksi atau mengukut sesuatu yang digunakan untuk mengubah variasi mekanis, magnetis, panas, sinar dan kimia menjadi tegangan dan arus listrik. sistem yang dirancang ini dilengkapi dengan beberapa sensor diantaranya adalah sensor apiUV-Tron R2868, sensor asap MQ-2 dan kemudian sensor suhuDS18B20. Mikrokontroller sebagai pengendali akan merespon input yang berupa sensor tersebut ketika data yang dibaca oleh sensor mendeteksikebakaran diantaranya mendeteksi adanya asap, kemudian api dan suhu. Sebagai output dari sistem berupa racun api (fire extinguisher)dimana kandungan yang ada pada racun api tersebut berupa Dry Chemical Powder dan Carbon Dioxide (CO2) yang fungsinya digunakan untuk memadamkan api serta dilengkapi buzzer sebagai alarm peringatan jika terjadi kebakaran. 

The Prenatal Development Effects of Carbon Dioxide (CO2) Exposure in Rats (Rattus Norvegicus)

2012 ◽  
Author(s):  
William R. Howard ◽  
Brian Wong ◽  
Michelle Okolica ◽  
Kimberly S. Bynum ◽  
R. A. James
Keyword(s):  
Carbon Dioxide ◽  
Rattus Norvegicus ◽  
Prenatal Development ◽  
Carbon Dioxide Co2

Physiology of Intraluminal Administration of Carbon Dioxide as a Contrast Medium

2020 ◽  
Vol 25 (44) ◽  
pp. 4656-4661 ◽  
Author(s):  
Nikolaos Patelis ◽  
Mikes Doulaptsis ◽  
Stylianos Kykalos ◽  
Eleftherios Spartalis ◽  
Anastasios Maskanakis ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Contrast Agent ◽  
20Th Century ◽  
English Literature ◽  
Human Organism ◽  
Digital Subtraction ◽  
Extensive Search ◽  
Iodinated Contrast ◽  
Iodinated Contrast Agent ◽  
Carbon Dioxide Co2

Background: Carbon dioxide (CO2) exists in nature around us. In the middle of the 20th century, the intraluminal injection of CO2 demonstrated similar results to those of Digital Subtraction Angiography (DSA) with an iodinated contrast agent (ICA). Since then, the technology behind CO2 DSA has developed significantly. Objective: The aim of this study is to inform physicians about the unique properties of CO2 and its physiology after intraluminal injection. Methods: An extensive search for English literature on the properties of CO2 and the physiology of intraluminal administration was conducted using Pubmed. Results: There is sufficient literature on the properties of CO2 and the physiology of CO2 DSA. A review of this literature explains what happens to the human organism after the injection of CO2. Conclusions: There is enough evidence that CO2 DSA is both effective, diagnostic and safe, but the properties of CO2 should be taken under consideration as complications occur, although rarely.

scholarly journals Carbon Dioxide Laser Vulvovaginal Rejuvenation: A Systematic Review

Cosmetics ◽  
2021 ◽  
Vol 8 (3) ◽  
pp. 56
Author(s):  
Tassahil Messas ◽  
Achraf Messas ◽  
George Kroumpouzos
Keyword(s):  
Carbon Dioxide ◽  
Systematic Review ◽  
Laser Therapy ◽  
Carbon Dioxide Laser ◽  
Invasive Treatment ◽  
Erbium:Yag Laser ◽  
Non Invasive ◽  
Level I ◽  
Carbon Dioxide Co2

Genitourinary syndrome of menopause (GSM) causes significant symptomatic aggravation that affects the quality of life (QoL). Vulvovaginal atrophy (VVA), the hallmark of GSM, is managed with topical non-hormonal therapy, including moisturizers and lubricants, and topical estrogen application. Patients not responding/being unsatisfied with previous local estrogen therapies are candidates for a noninvasive modality. Carbon dioxide (CO2) laser therapy, especially the fractionated type (FrCO2), has drawn considerable attention over the past two decades as a non-invasive treatment for GSM. This systematic review describes the accumulated evidence from 40 FrCO2 laser studies (3466 participants) in GSM/VVA. MEDLINE, Scopus and Cochrane databases were searched through April 2021. We analyze the effects of FrCO2 laser therapy on symptoms, sexual function, and QoL of patients with GSM/VVA. As shown in this review, FrCO2 laser therapy for GSM shows good efficacy and safety. This modality has the potential to advance female sexual wellness. Patient satisfaction was high in the studies included in this systematic review. However, there is a lack of level I evidence, and more randomized sham-controlled trials are required. Furthermore, several clinical questions, such as the number of sessions required that determine cost-effectiveness, should be addressed. Also, whether FrCO2 laser therapy may exert a synergistic effect with systemic and/or local hormonal/non-hormonal treatments, energy-based devices, and other modalities to treat GMS requires further investigation. Lastly, studies are required to compare FrCO2 laser therapy with other energy-based devices such as erbium:YAG laser and radiofrequency.

scholarly journals Unveiling Carbon Dioxide and Ethanol Diffusion in Carbonated Water-Ethanol Mixtures by Molecular Dynamics Simulations

Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1711
Author(s):  
Mohamed Ahmed Khaireh ◽  
Marie Angot ◽  
Clara Cilindre ◽  
Gérard Liger-Belair ◽  
David A. Bonhommeau
Keyword(s):  
Carbon Dioxide ◽  
Molecular Dynamics ◽  
Diffusion Coefficients ◽  
Hydrodynamic Radius ◽  
Md Simulations ◽  
Molecular Models ◽  
Experimental Values ◽  
Carbon Dioxide Co2 ◽  
Dynamics Simulations ◽  
Apparent Disagreement

The diffusion of carbon dioxide (CO2) and ethanol (EtOH) is a fundamental transport process behind the formation and growth of CO2 bubbles in sparkling beverages and the release of organoleptic compounds at the liquid free surface. In the present study, CO2 and EtOH diffusion coefficients are computed from molecular dynamics (MD) simulations and compared with experimental values derived from the Stokes-Einstein (SE) relation on the basis of viscometry experiments and hydrodynamic radii deduced from former nuclear magnetic resonance (NMR) measurements. These diffusion coefficients steadily increase with temperature and decrease as the concentration of ethanol rises. The agreement between theory and experiment is suitable for CO2. Theoretical EtOH diffusion coefficients tend to overestimate slightly experimental values, although the agreement can be improved by changing the hydrodynamic radius used to evaluate experimental diffusion coefficients. This apparent disagreement should not rely on limitations of the MD simulations nor on the approximations made to evaluate theoretical diffusion coefficients. Improvement of the molecular models, as well as additional NMR measurements on sparkling beverages at several temperatures and ethanol concentrations, would help solve this issue.

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