{"title":"Fractional Quantum Problem Based on Caputo-Fabrizio Derivative","authors":"Bouzenna Fatma El-Genbazi, Meftah Mohammed T","doi":"10.3923/jas.2022.42.47","DOIUrl":"https://doi.org/10.3923/jas.2022.42.47","url":null,"abstract":"","PeriodicalId":7436,"journal":{"name":"American Journal of Applied Sciences","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87953214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.3844/ajassp.2022.6.20
H. Samah, M. Banna, B. Zeghmati
: Planted roofs have been investigated as a passive cooling technology for energy efficiency purposes in buildings. More quantitative data on this topic are required to solve a lack of information for many specific regions. This study is focused on a numerical investigation of the thermal comfort inside a green roof rectangular ventilated cavity in a hot and humid climate like the one of Lomé in west Africa. The left vertical is heated and partly saturated with water to provide humidification of the indoor air. Transfer dimensionless equations are solved using an implicit finite difference scheme, the Thomas algorithm, and the Gauss-Seidel iterative method. We analyze the effects of inlet airflow on the thermal process inside the ventilated and planted enclosure have been investigated. The comfort temperature range deduced from the data is 25°C < T c < 27°, and that of the indoor air humidity is 49% < Hr <60%. The different ranges obtained are significant and lead to improving inside thermal comfort. The solar flux of 350 W.m -2 , the average value in the case of Lomé city, was used to establish a heat transfer correlation to predict heat transfer through the roof with a relative error not exceeding 4%. This model can be very useful for engineers in the design and optimization stage of a green roof in practical buildings.
植物屋顶作为一种被动冷却技术已被研究，以提高建筑物的能源效率。需要更多关于这一主题的定量数据，以解决许多特定区域缺乏信息的问题。本研究的重点是在炎热潮湿的气候条件下，如西非的lomovil，对绿色屋顶矩形通风腔内的热舒适性进行数值研究。左边的垂直部分被加热，部分被水饱和，为室内空气提供加湿。用隐式有限差分格式、Thomas算法和Gauss-Seidel迭代法求解了传递无量纲方程。本文分析了进气气流对通风和种植围护结构内热过程的影响。根据数据推导出的舒适温度范围为25℃< T℃< 27℃，室内空气湿度范围为49% < Hr <60%。所获得的不同范围是显著的，并导致改善内部热舒适。利用lomoire市的平均太阳通量350 w m -2建立了预测屋顶传热的传热相关性，相对误差不超过4%。该模型对实际建筑中绿色屋顶的设计和优化具有一定的参考价值。
{"title":"Double Diffusive Convection Heat and Moisture Transfer Inside a Planted Roof Building Under Hot Humid Climate: Case of Lomé City in West Africa","authors":"H. Samah, M. Banna, B. Zeghmati","doi":"10.3844/ajassp.2022.6.20","DOIUrl":"https://doi.org/10.3844/ajassp.2022.6.20","url":null,"abstract":": Planted roofs have been investigated as a passive cooling technology for energy efficiency purposes in buildings. More quantitative data on this topic are required to solve a lack of information for many specific regions. This study is focused on a numerical investigation of the thermal comfort inside a green roof rectangular ventilated cavity in a hot and humid climate like the one of Lomé in west Africa. The left vertical is heated and partly saturated with water to provide humidification of the indoor air. Transfer dimensionless equations are solved using an implicit finite difference scheme, the Thomas algorithm, and the Gauss-Seidel iterative method. We analyze the effects of inlet airflow on the thermal process inside the ventilated and planted enclosure have been investigated. The comfort temperature range deduced from the data is 25°C < T c < 27°, and that of the indoor air humidity is 49% < Hr <60%. The different ranges obtained are significant and lead to improving inside thermal comfort. The solar flux of 350 W.m -2 , the average value in the case of Lomé city, was used to establish a heat transfer correlation to predict heat transfer through the roof with a relative error not exceeding 4%. This model can be very useful for engineers in the design and optimization stage of a green roof in practical buildings.","PeriodicalId":7436,"journal":{"name":"American Journal of Applied Sciences","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82040939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.3844/ajassp.2022.43.50
Jack Liu
: This study compares and presents the similarities in the development of Chinese diasporic media in Western countries, especially focusing on the influence of the Chinese diaspora and the homeland political economy, from the past to the present. An investigation was conducted on the research sample-the Chinese diaspora and diasporic media in Australia and New Zealand through documentary and field research. The research results suggest that the transformation of sub-Chinese groups (from Hong Kongese to the mainlanders) and Greater China’s political economy simultaneously determine the readership, advertisements, ownership, as well as media content from the early 19 th century to the present. Subsequently, comparisons of the development of the Chinese diasporic media in the US, Canada, and Western Europe suggest the same two influential factors. Furthermore, the results of the findings show that contemporary Chinese diasporas and the mainland political economy impact are two of the most influential factors in the boom of overseas Chinese digital media. Overall, although Chinese diasporic media are varied and diverse, their development is determined by two external factors: the Chinese diaspora and the homeland. These findings could serve as a reference that contributes to both the diasporic media industry and research.
{"title":"Comparative Studies on Development History of Chinese Diasporic Media in the West","authors":"Jack Liu","doi":"10.3844/ajassp.2022.43.50","DOIUrl":"https://doi.org/10.3844/ajassp.2022.43.50","url":null,"abstract":": This study compares and presents the similarities in the development of Chinese diasporic media in Western countries, especially focusing on the influence of the Chinese diaspora and the homeland political economy, from the past to the present. An investigation was conducted on the research sample-the Chinese diaspora and diasporic media in Australia and New Zealand through documentary and field research. The research results suggest that the transformation of sub-Chinese groups (from Hong Kongese to the mainlanders) and Greater China’s political economy simultaneously determine the readership, advertisements, ownership, as well as media content from the early 19 th century to the present. Subsequently, comparisons of the development of the Chinese diasporic media in the US, Canada, and Western Europe suggest the same two influential factors. Furthermore, the results of the findings show that contemporary Chinese diasporas and the mainland political economy impact are two of the most influential factors in the boom of overseas Chinese digital media. Overall, although Chinese diasporic media are varied and diverse, their development is determined by two external factors: the Chinese diaspora and the homeland. These findings could serve as a reference that contributes to both the diasporic media industry and research.","PeriodicalId":7436,"journal":{"name":"American Journal of Applied Sciences","volume":"122 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73106786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.3844/ajassp.2022.105.108
R. Mungmunpuntipantip, V. Wiwanitkit
: COVID-19 is currently a major global public health concern. The newest dangerous type, Omicron, comes in late 2021 and spreads quickly from Africa. There have already been new omicron subvariants discovered. Mutations inside the molecular structure of omicron subvariant induce intriguing molecular changes. The authors undertook a study to examine the effects of mutations in important COVID-19 omicron subvariants, including BA.1, BA.2, and BA.3, based on free binding energy alterations. According to molecular study findings, each studied subvariant has a different free binding energy. The BA.3 has undergone the most changes. As a result, the binding of ACE-2 may be affected. This suggests that the new subvariant may be linked to a higher likelihood of transmission.
{"title":"Omicron SARS Co-V2 Sub Variants BA.2 and BA.3 have Lower Free Binding Energy than BA.1","authors":"R. Mungmunpuntipantip, V. Wiwanitkit","doi":"10.3844/ajassp.2022.105.108","DOIUrl":"https://doi.org/10.3844/ajassp.2022.105.108","url":null,"abstract":": COVID-19 is currently a major global public health concern. The newest dangerous type, Omicron, comes in late 2021 and spreads quickly from Africa. There have already been new omicron subvariants discovered. Mutations inside the molecular structure of omicron subvariant induce intriguing molecular changes. The authors undertook a study to examine the effects of mutations in important COVID-19 omicron subvariants, including BA.1, BA.2, and BA.3, based on free binding energy alterations. According to molecular study findings, each studied subvariant has a different free binding energy. The BA.3 has undergone the most changes. As a result, the binding of ACE-2 may be affected. This suggests that the new subvariant may be linked to a higher likelihood of transmission.","PeriodicalId":7436,"journal":{"name":"American Journal of Applied Sciences","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87284275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.3844/ajassp.2022.84.92
F. H. Jabrail, M. S. Mutlaq
: Chitosan (CS) the polysaccharide was copolymerized with Poly (Vinyl Alcohol) (PVA) for the preparation of CS-co-PVA hydrogel and with Carboxymethyl Cellulose (CMC) for CS-co-CMC hydrogel. The prepared hydrogels were characterized by FTIR, thermal analysis (TGA and DSC), and SEM. The hydrogels were studied for agriculture applications, where their ability to swell and take large quantities of water many times its weight was exploited for water retention when the hydrogel was mixed with agricultural soil. For almost 40 days the soil in the soil/hydrogel sample was kept wet whereas the reference sample (without hydrogel) has a maximum of 20 days wet. The next application was loading the NPK fertilizer applied as a model into the prepared hydrogels and then allowing to release of the loaded fertilizer in a controlled manner and for long time intervals. Both hydrogels CS-co-PVA and CS-co-CMC have shown a high maximum loading percentage (L max %) and a highly efficient loading percentage (EL%). Equivalent to the release character of both hydrogels has shown a controlled agrochemical deliver pattern.
:将壳聚糖(CS)与聚乙烯醇(PVA)共聚制备CS-co-PVA水凝胶，并与羧甲基纤维素(CMC)共聚制备CS-co-CMC水凝胶。通过红外光谱(FTIR)、热分析(TGA、DSC)和扫描电镜(SEM)对制备的水凝胶进行了表征。研究了水凝胶在农业中的应用，当水凝胶与农业土壤混合时，水凝胶的膨胀能力和吸收大量水的能力是其重量的许多倍。在近40天的时间里，土壤/水凝胶样品中的土壤保持湿润，而参考样品(不含水凝胶)的湿润时间最多为20天。下一个应用是将作为模型施用的氮磷钾肥料加载到制备的水凝胶中，然后允许以受控的方式和长时间间隔释放加载的肥料。CS-co-PVA和CS-co-CMC水凝胶均表现出较高的最大负载率(L max %)和高效负载率(EL%)。相当于这两种水凝胶的释放特性表现出可控的农用化学品释放模式。
{"title":"Controlled Delivery System for NPK Agrochemical Release from Chitosan Copolymer Hydrogels","authors":"F. H. Jabrail, M. S. Mutlaq","doi":"10.3844/ajassp.2022.84.92","DOIUrl":"https://doi.org/10.3844/ajassp.2022.84.92","url":null,"abstract":": Chitosan (CS) the polysaccharide was copolymerized with Poly (Vinyl Alcohol) (PVA) for the preparation of CS-co-PVA hydrogel and with Carboxymethyl Cellulose (CMC) for CS-co-CMC hydrogel. The prepared hydrogels were characterized by FTIR, thermal analysis (TGA and DSC), and SEM. The hydrogels were studied for agriculture applications, where their ability to swell and take large quantities of water many times its weight was exploited for water retention when the hydrogel was mixed with agricultural soil. For almost 40 days the soil in the soil/hydrogel sample was kept wet whereas the reference sample (without hydrogel) has a maximum of 20 days wet. The next application was loading the NPK fertilizer applied as a model into the prepared hydrogels and then allowing to release of the loaded fertilizer in a controlled manner and for long time intervals. Both hydrogels CS-co-PVA and CS-co-CMC have shown a high maximum loading percentage (L max %) and a highly efficient loading percentage (EL%). Equivalent to the release character of both hydrogels has shown a controlled agrochemical deliver pattern.","PeriodicalId":7436,"journal":{"name":"American Journal of Applied Sciences","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80617622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.3844/ajassp.2022.68.77
O. Kronusová, Michala Piklová, Kristýna Šírová, P. Kastanek, R. Gürlich, Petr Bratka
: Inflorescence of eight different varieties of Cannabis sp. (3 hemp varieties and 5 medical cannabis varieties) were subjected to extraction with n-hexane or ethanol as representatives of non-polar and polar solvents. Crude extracts were either used directly or after decarboxylation of cannabis acids for measurement of selected biological activities-cytotoxicity against carcinogenic line B16 (musculus skin melanoma cells), cytotoxicity against Human Dermal Fibroblast (HDF) as a control non-carcinogenic line, antimicrobial activity against Candida albicans (DBM, 2186), Staphylococcus aureus (ATCC, 25923) and Salmonella enterica (CCM, 4420) and antioxidant activity using the ORAC (Oxygen Radical Absorbance Capacity) assay. 32 samples with a different profile of cannabinoids measured by HLPC were thus obtained and evaluated. The content of total flavonoids that could exert synergic action on bioactivity was measured by the spectrophotometric method. The hexane extracts showed higher antimicrobial activity, decarboxylation of the samples led to an increase in cytotoxicity against the human skin fibroblast line in most of the studied samples, and to decrease in the antioxidant effects of the decarboxylated extracts. The obtained findings suggest a therapeutic potential of the selected cannabis extracts in the treatment of skin cancer, skin wounds, or surgical wound healing.
{"title":"Optimization of Extraction of Cannabinoids and Flavonoids Substances from Influence Cannabis sp. and their Biological Activities before and after Decarboxylation","authors":"O. Kronusová, Michala Piklová, Kristýna Šírová, P. Kastanek, R. Gürlich, Petr Bratka","doi":"10.3844/ajassp.2022.68.77","DOIUrl":"https://doi.org/10.3844/ajassp.2022.68.77","url":null,"abstract":": Inflorescence of eight different varieties of Cannabis sp. (3 hemp varieties and 5 medical cannabis varieties) were subjected to extraction with n-hexane or ethanol as representatives of non-polar and polar solvents. Crude extracts were either used directly or after decarboxylation of cannabis acids for measurement of selected biological activities-cytotoxicity against carcinogenic line B16 (musculus skin melanoma cells), cytotoxicity against Human Dermal Fibroblast (HDF) as a control non-carcinogenic line, antimicrobial activity against Candida albicans (DBM, 2186), Staphylococcus aureus (ATCC, 25923) and Salmonella enterica (CCM, 4420) and antioxidant activity using the ORAC (Oxygen Radical Absorbance Capacity) assay. 32 samples with a different profile of cannabinoids measured by HLPC were thus obtained and evaluated. The content of total flavonoids that could exert synergic action on bioactivity was measured by the spectrophotometric method. The hexane extracts showed higher antimicrobial activity, decarboxylation of the samples led to an increase in cytotoxicity against the human skin fibroblast line in most of the studied samples, and to decrease in the antioxidant effects of the decarboxylated extracts. The obtained findings suggest a therapeutic potential of the selected cannabis extracts in the treatment of skin cancer, skin wounds, or surgical wound healing.","PeriodicalId":7436,"journal":{"name":"American Journal of Applied Sciences","volume":"56 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85755204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.3844/ajassp.2022.51.67
Mohammad S. Al Rousan, B. Intrigila
: The primary aim of this research is to develop a framework for data management and sharing that will enable countries to share complex data about known and unknown high-risk passengers to streamline border-control security processes through the use of big data analytics and Artificial Intelligence (AI). A total of 15 semi-structured interviews were used to gather qualitative data. A thematic analysis approach was used to analyze the data and the interview data were coded using NVivo 11 qualitative-data-analysis software. Five aggregate dimensions were developed, comprising nine themes and nine sub-themes, based on 39 codes that emerged from the data. This research has several theoretical and practical contributions. Primarily, the development of an AI-based risk engine will not only improve how borders are enforced but will also lead to the integration of new technology for border control, thus boosting securitization, decreasing human factors/error, minimizing border-related crime, and helping to manage healthcare issues.
{"title":"A Data-Sharing Model to Secure Borders Using an Artificial-Intelligence-Based Risk Engine and Big-Data Concepts","authors":"Mohammad S. Al Rousan, B. Intrigila","doi":"10.3844/ajassp.2022.51.67","DOIUrl":"https://doi.org/10.3844/ajassp.2022.51.67","url":null,"abstract":": The primary aim of this research is to develop a framework for data management and sharing that will enable countries to share complex data about known and unknown high-risk passengers to streamline border-control security processes through the use of big data analytics and Artificial Intelligence (AI). A total of 15 semi-structured interviews were used to gather qualitative data. A thematic analysis approach was used to analyze the data and the interview data were coded using NVivo 11 qualitative-data-analysis software. Five aggregate dimensions were developed, comprising nine themes and nine sub-themes, based on 39 codes that emerged from the data. This research has several theoretical and practical contributions. Primarily, the development of an AI-based risk engine will not only improve how borders are enforced but will also lead to the integration of new technology for border control, thus boosting securitization, decreasing human factors/error, minimizing border-related crime, and helping to manage healthcare issues.","PeriodicalId":7436,"journal":{"name":"American Journal of Applied Sciences","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86887404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.3844/ajassp.2022.93.98
E. Rojas, Manuel E. Reátegui-Inga, Reiner Reátegui Inga, Pierina Lizbeth Neyra Vargas, Meliza del Pilar Bustos Chavez, Alberto Franco Cerna Cueva, Lenin Quiñones Huatangari, A. Guadalupe, Jorge Luis Vargas Espinoza
: The objective of this study was to review the main rainwater harvesting and treatment systems through a bibliometric analysis from 2000-2021. A bibliometric analysis was used in the R program and VOS viewer, the query involved titles, abstracts, and keywords during the last 20 years (2000-2021). The results indicate that from 2013 onwards, interest in this topic increased. 13% of the publications belong to the academic journal Journal of Cleaner Production. The main author leading the publications is Ghisi, from Brazil, who conducted 24 types of research and one of his papers reached 95 citations. In conclusion, there is evidence of the need to strengthen research in developing countries to contribute to water saving and supply in areas that do not have drinking water.
{"title":"Rainwater Harvesting and Treatment Systems in South America: A Bibliometric Analysis (2000-2021)","authors":"E. Rojas, Manuel E. Reátegui-Inga, Reiner Reátegui Inga, Pierina Lizbeth Neyra Vargas, Meliza del Pilar Bustos Chavez, Alberto Franco Cerna Cueva, Lenin Quiñones Huatangari, A. Guadalupe, Jorge Luis Vargas Espinoza","doi":"10.3844/ajassp.2022.93.98","DOIUrl":"https://doi.org/10.3844/ajassp.2022.93.98","url":null,"abstract":": The objective of this study was to review the main rainwater harvesting and treatment systems through a bibliometric analysis from 2000-2021. A bibliometric analysis was used in the R program and VOS viewer, the query involved titles, abstracts, and keywords during the last 20 years (2000-2021). The results indicate that from 2013 onwards, interest in this topic increased. 13% of the publications belong to the academic journal Journal of Cleaner Production. The main author leading the publications is Ghisi, from Brazil, who conducted 24 types of research and one of his papers reached 95 citations. In conclusion, there is evidence of the need to strengthen research in developing countries to contribute to water saving and supply in areas that do not have drinking water.","PeriodicalId":7436,"journal":{"name":"American Journal of Applied Sciences","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82734047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.3844/ajassp.2022.109.119
F. Petrescu
: The paper briefly presents a new Eq. (9). The role of Eq. (9) is to accurately determine the size of a moving elementary particle, depending on its velocity (or particle energy). Although Eq. (9) has a general character, it can be applied to any elementary particle in motion to determine the size of that particle, in the study, it was applied only to the particles of hydrogen nuclei of its first three isotopes. The purpose of the application is to determine exactly the size of hydrogen isotopes according to their energy, to use in industrial systems for obtaining nuclear energy, fusion, fission, and, in the future, even the annihilation of matter-antimatter. In this way, it will be possible to achieve industrial-scale fusion with convenient efficiency in the coming years and a little later it will be possible to develop systems for obtaining energy from annihilations.
{"title":"Presenting a New Equation that Accurately Determines the Size of a Moving Elementary Particle","authors":"F. Petrescu","doi":"10.3844/ajassp.2022.109.119","DOIUrl":"https://doi.org/10.3844/ajassp.2022.109.119","url":null,"abstract":": The paper briefly presents a new Eq. (9). The role of Eq. (9) is to accurately determine the size of a moving elementary particle, depending on its velocity (or particle energy). Although Eq. (9) has a general character, it can be applied to any elementary particle in motion to determine the size of that particle, in the study, it was applied only to the particles of hydrogen nuclei of its first three isotopes. The purpose of the application is to determine exactly the size of hydrogen isotopes according to their energy, to use in industrial systems for obtaining nuclear energy, fusion, fission, and, in the future, even the annihilation of matter-antimatter. In this way, it will be possible to achieve industrial-scale fusion with convenient efficiency in the coming years and a little later it will be possible to develop systems for obtaining energy from annihilations.","PeriodicalId":7436,"journal":{"name":"American Journal of Applied Sciences","volume":"327 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86776368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.3844/ajassp.2022.21.33
Naciti Valeria, Centorrino Giovanna
Corresponding Author: Naciti Valeria Department of Economics, University of Messina, Messina, Italy Email: vnaciti@unime.it Abstract: This study explores the relationship between business practices related to climate change and environmental performance. Using an international sample of analysis from 2013 to 2017, the paper examines how managerial incentives, public policy, disclosure, and responsibilities to executives on climate change, as corporate governance factors, affect a firm's environmental performance. By employing several regression analyses, our independent variables-incentives, public policy, disclosure, and responsibilities-show to improve the environmental performance in terms of reduction of GHG emissions. In addition, results show that stakeholders' engagement seems less relevant in the US concerning other countries, this could be related to the US public opinion which exerts lower pressures on companies to deal with climate change. This study contributes to the environmental governance literature, where the impact of governance practices on environmental problem solving has not been widely studied.
{"title":"Effectiveness of Business Practices Related to Climate Change as a Driver for Improving Environmental Performance","authors":"Naciti Valeria, Centorrino Giovanna","doi":"10.3844/ajassp.2022.21.33","DOIUrl":"https://doi.org/10.3844/ajassp.2022.21.33","url":null,"abstract":"Corresponding Author: Naciti Valeria Department of Economics, University of Messina, Messina, Italy Email: vnaciti@unime.it Abstract: This study explores the relationship between business practices related to climate change and environmental performance. Using an international sample of analysis from 2013 to 2017, the paper examines how managerial incentives, public policy, disclosure, and responsibilities to executives on climate change, as corporate governance factors, affect a firm's environmental performance. By employing several regression analyses, our independent variables-incentives, public policy, disclosure, and responsibilities-show to improve the environmental performance in terms of reduction of GHG emissions. In addition, results show that stakeholders' engagement seems less relevant in the US concerning other countries, this could be related to the US public opinion which exerts lower pressures on companies to deal with climate change. This study contributes to the environmental governance literature, where the impact of governance practices on environmental problem solving has not been widely studied.","PeriodicalId":7436,"journal":{"name":"American Journal of Applied Sciences","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84607832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：