American Scientific Research Journal for Engineering, Technology, and Sciences (ASRJETS) https://www.asrjetsjournal.org/index.php/American_Scientific_Journal <div style="float: left; width: 315; text-align: center; margin-left: 5px;"> <p style="text-align: justify;">The <a title="home page for American Scientific Research Journal for Engineering, Technology, and Sciences" href="/index.php/American_Scientific_Journal/index">American Scientific Research Journal for Engineering, Technology, and Sciences (<strong>ASRJETS</strong>)</a>&nbsp;is <strong>multidisciplinary&nbsp;<strong>peer reviewed </strong>Journal </strong><strong>intended to publish original research papersreview articles, short communications and technical reports in all main branches of science (All scientific disciplines) such as Social Sciences , Natural Sciences , Formal Sciences, and Applied science.&nbsp;(but not limited to):</strong>&nbsp;anthropology, archaeology, communication, criminology, education, government, linguistics, international relations, political science, sociology, Earth science, Ecology, Oceanography, Meteorology, Life science, Human biology, Decision theory, Logic, Mathematics, Statistics, Systems theory, Theoretical computer science, Applied physics, Computer science, all Fields of engineering, Accounting, , Education,&nbsp; Economics, Medical Technology, Biology,&nbsp; Medicine, Management, History, Mineralogy, Civil Engineering, Marine Technology, Commerce, Chemical Engineering, Animal Sciences, Petroleum &amp; Gas, Energy Resources,&nbsp; Agriculture, Medical Sciences, Machine Learning, Machinery, computer Science, Chemistry, Neural Networks, Physics, Social Science, Geology, Transportation, Waste Management, Control Engineering, Applied Mathematics, Oceanography, Biomedical Materials, Construction, Metallurgy, Neural Computing, Industrial Arts, IT, Astronology, Fire &amp; Fire Prevention, Robotics Marine Sciences, Solid State Technology, Business Administration, Food &amp;Food Industry, Atmospheric Sciences, Artificial Intelligence, Textile Industry &amp; Fabrics, Education science, Physiology, Nano Science, Microbiology, Psychology, Statistics, Pharmaceutical Sciences, Genetics, Botany, Veterinary Sciences, Biotechnology, Biochemistry, Zoology, Oncology, Accounting, Entomology, Parasitology, Evolution, human behavior, Biophysics, Fisheries, Pharmacology, Geography, Cell Biology, Genomics, Plant Biology, Law, Religious Studies, Endocrinology, Dentistry, Infectious Diseases, Toxicology, Immunology, Teacher education, and Neuroscience.&nbsp;</p> <p style="text-align: justify;">This International&nbsp;journal Guarantees that the editor decision based on the peer review results&nbsp;<strong>will not exceed 21 days</strong> from the paper submission date.</p> <p style="text-align: justify;">The <strong><a title="American Scientific Research Journal for Engineering, Technology, and Sciences" href="/index.php/American_Scientific_Journal/index">ASRJETS</a></strong> journal accepts scientific papers for publication after passing the journal's double peer review process.&nbsp; For detailed information about the journal kindly check <a title="About the Journal" href="/index.php/American_Scientific_Journal/about">About the Journal</a>&nbsp;page.&nbsp;</p> <p>&nbsp;</p> </div> en-US <p>Authors who submit papers&nbsp;with this journal agree to the following terms:</p> <ol start="1"> <li class="show">Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a&nbsp;<a href="http://creativecommons.org/licenses/by/3.0/" target="_new">Creative Commons Attribution License</a>&nbsp;that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.</li> <li class="show">Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.</li> <li class="show">Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See&nbsp;<a href="http://opcit.eprints.org/oacitation-biblio.html" target="_new">The Effect of Open Access</a>).</li> <li class="show">By submitting the processing fee, it is understood that the author has agreed to our terms and conditions which may change from time to time without any notice.</li> <li class="show">It should be clear for authors that the Editor In Chief is responsible for the final decision about the submitted papers; have the right to accept\reject any paper. &nbsp;The Editor In Chief will choose any option from the following to review the submitted papers:A. send the paper to two reviewers, if the results were negative by one reviewer and positive by the other one; then the editor may send the paper for third reviewer or he take immediately the final decision by accepting\rejecting the paper. The Editor In Chief will ask the selected reviewers to present the results within 7 working days, if they were unable to complete the review within the agreed period then the editor have the right to resend the papers for new reviewers using the same procedure. If the Editor In Chief was not able to find suitable reviewers for certain papers then he have the right to accept\reject the paper.B. sends the paper to a selected editorial board member(s). C. the Editor In Chief himself evaluates the paper.</li> <li class="show">Author will take the responsibility what so ever if any copyright infringement or any other violation of any law is done by publishing the research work by the author</li> <li class="show">Before publishing, author must check whether this journal is accepted by his employer, or any authority he intends to submit his research work. we will not be responsible in this matter.</li> <li class="show">If at any time, due to any legal reason, if the journal stops accepting manuscripts or could not publish already accepted manuscripts, we will have the right to cancel all or any one of the manuscripts without any compensation or returning back any kind of processing cost.</li> <li class="show">The cost covered in the publication fees is only for online publication of a single manuscript.</li> </ol> editor@asrjetsjournal.org (Dr. Mohammad Nasar) support@gssrr.org (Rabindra Corat Kayastha) Thu, 31 Dec 2020 10:53:36 +0000 OJS 3.1.2.1 http://blogs.law.harvard.edu/tech/rss 60 Digital Transformation Frameworks - Applicable for Disruptive Technologies? https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6548 <p>This paper has a two-fold aim to analyze the need of the digital transformation framework, and to understand the its impact on disruptive technologies by means of a structured review of the literature. The results of this research reveal that the digital transformation demand has developed a lot and there is seen a growing interest of its implementation in digital era of business and technology. However, results derived from an in-depth review show that there is a dire need for DT in developing countries and for more collaboration between researchers and practitioners. The paper highlights that business and digital marketing is fragmented due to disruptive technologies and shared platforms and furthermore outlines the strategies of digital transformation as a tool to be implemented among all new enabling technologies. To sum up all, it is concluded that without any doubt digital transformation is proven as tailored strategic option to impact creation, value and delivery of products and projects in almost every industry. These impacts have led to the improvement of digital marketing strategies, online business world along with employment of a variety of new successful business models, crucial to be successful in today’s and future competitive digital era demanding for innovation.</p> Dipl.-HTL-Ing. Helmut Schindlwick. MBA. MSc Copyright (c) 2021 American Scientific Research Journal for Engineering, Technology, and Sciences (ASRJETS) https://creativecommons.org/licenses/by-nc-nd/4.0 https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6548 Sat, 02 Jan 2021 07:29:45 +0000 Identification of Explosive Force in 15-year Old Volleyball Players https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6537 <p>Assessment of physical features, especially vertical jump performance in various GRFP is of particular importance in advancing and determining the physical abilities of young age groups in volleyball. The purpose of this study is to evaluate the performance of vertical jump in volleyball in Albania. Method; 181 volleyball players were tested, including 106 female (F) and 75 men (M) with an average age of 15-16 years, BH cm(F-177/M-191), BW kg(F-64.3/M-79.5), BMI kg/m² (F-20.39/M-21.88). Field tests Attack cm(F-285.3/M-323.7), Block cm(F-274.6/M-310.3.In three tests Bosco; Squat Jump (SJ), Countermovement Jump (CMJ), Repeat Jump (RJ 15sec) tests were conducted on the Ergo Jump System platform. The average values ​​according to the calculations in the index of elasticity and elastic energy of the lower extremities of volleyball players as well as the index of explosive force are shown. Results: The fast power index is derived from the CMJ-SJ test difference and showed that (F-5.6/M-7). The coefficient of elasticity is expressed in% by the formula (CMJ-SJ) x100 / CMJ where it showed the values ​​of (F-17.3% /M-16.2%), while in the RJ15sec test of anaerobic power showed the values ​​where (F-0.8/M-0. 7).Conclusions: Tests conducted in these age groups of volleyball players in Albania clearly showed that they have unused reserves of elastic muscle energy. The capacity of the strength index in team sports in teams reaches values ​​up to 0.90-0.95 but F&amp;M volleyball players showed values ​​of 0.7-0.8, is a low capacity of reactive force resistance, which results from the lack of plyometric training. The mechanical strength during the RJ15sec jump proved to be a very sensitive functional parameter that individualizes the features and characteristics of the anaerobic element of lactic acid related to training.</p> Enkeleida Lleshi, Altin Martiri Copyright (c) 2021 American Scientific Research Journal for Engineering, Technology, and Sciences (ASRJETS) https://creativecommons.org/licenses/by-nc-nd/4.0 https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6537 Sat, 02 Jan 2021 07:34:26 +0000 Theoretical Studies of the Chemical Reactivity of a Series of Coumarin Derivatives by the Density Functional Theory https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6381 <p>The global descriptors of reactivity such as HOMO and LUMO energies, chemical hardness, electrophilicity, softness and dipole moment are theoretically determined for five coumarin derivatives in this paper. The analysis of the determined descriptors allows us to classify the studied molecules according to their reactivities. Thus, compound M3 is qualified to be the most reactive and the least stable with 3.933 eV as its gap energy ΔE<sub>gap</sub>. It is at the same time the softest, the best electron donor, the most electrophilic and the most polar molecule. The study of thermodynamic parameters shows that all the reactions of formation of studied coumarin derivatives are exothermic and spontaneous with less disorder. Furthermore, Hirschfield population analysis was carried out in order to locate the reactive sites, that are assumed to be the electrophilic and nucleophilic sites of the molecules. It appears that all the reactive sites are located on carbon atoms except those of molecule M3 which are located on oxygen atoms. Compounds M1 and M2 have the same electrophilic site (C15) and the same nucleophilic site (C13) thereby showing that the methyl group does not have any influence on the reactive site. The electrophilic site of the molecule M3 is located on both the identical oxygen atoms O33 and O34 while its nucleophilic site is located on the oxygen atoms O12. The electrophilic sites of compound M4 and M5 are the same and it is located on carbon atom(C11) while the nucleophilic site is located on carbon atom C23 for molecule M4. Concerning the nucleophilic sites of molecule M5 it is located on carbon atom C20. The difference nucleophilic reactive site may be due to the conjugation of activity of both fluorine atom and methyl group on the M5.</p> Lamoussa Ouattara, Kafoumba BAMBA, Mamadou Guy-Richard Kone, Jean Stéphane N’dri, Affoué Lucie Bede, Kouakou Nobel N’guessan, Doh Soro Copyright (c) 2021 American Scientific Research Journal for Engineering, Technology, and Sciences (ASRJETS) https://creativecommons.org/licenses/by-nc-nd/4.0 https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6381 Sat, 02 Jan 2021 07:44:00 +0000 Survey of papaya mealybug, Paracoccus marginatus and its introduced parasitoids on papaya plants in the low country dry zone of Sri Lanka https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6571 <p>Papaya mealybug, <em>Paracoccus marginatus</em> Willams and Granara Willink, is an invasive hemipteran that attacks several genera of host plants, including economically important tropical fruits and ornamentals. It is an alien invasive species and was reported for the first time in Sri Lanka in 2008 and the biocontrol programme was implemented with the introduction of three natural enemies <em>Acerophagus papayae</em>, <em>Anagyrus loeki</em>, and <em>Pseudleptomastix mexicana</em> imported from Puerto Rico in some selected regions in 2008 and 2009. After a decade following the initial introduction it is essential to investigate the presence of the parasitoids for the management of papaya mealybug pests. Therefore a survey was conducted to study the pest status of papaya mealybugs and to check the availability and the abundance of their introduced parasitoids is some randomly selected locations of the low country dry zone of Sri Lanka during the period from January 2018 to December 2019. The survey revealed that <em>P. marginatus</em> is still spreading in Sri Lanka but is present at lower population levels than in previous years, probably due to the action of introduced hymenopteran parasitoids. Among the three parasitoids the <em>A. papayae</em> and <em>P. mexicana </em>were found to be established on the papaya plants infested with papaya mealybug. The parasitoid with the greatest impact on the mealybug is generally&nbsp;<em>Acerophagus papayae</em>&nbsp;, whereas <em>A.&nbsp; loeki</em> was failed to establish. The finding would be very essential to tackle if there are any future threats caused by <em>P.marginatus.</em></p> Prishanthini Muthulingam , Muthuladchumy Vinobaba Copyright (c) 2021 American Scientific Research Journal for Engineering, Technology, and Sciences (ASRJETS) https://creativecommons.org/licenses/by-nc-nd/4.0 https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6571 Wed, 06 Jan 2021 17:47:20 +0000 A Study on Life Cycle Analysis (LCA) of a Cotton Woven Shirt https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6484 <p>The property of textile materials has gained a lot of attention thanks to the resource consumption and waste<br>material emissions at the moment time. So, it's terribly essential and a core demand to gauge the<br>environmental result of textiles from a life cycle perspective to develop the property of textiles.<br>Environmental problems became vital over the previous few years owing to increasing pollution, waste<br>materials, heating, etc. shoppers have additionally begun to demand inexperienced products. As a result of<br>these events, additional strategic and systematic approaches square measure necessary for ever-changing<br>environmental problems. Life Cycle Analysis (LCA) is one of the tools to satisfy this necessity. During this<br>research, we have a tendency to square measure analyzing the LCA of a ‘Cotton woven Shirt’, and<br>scientifically evaluating the environmental impacts also as resource utilization to supply, from raw materials<br>to the disposal of the merchandise at the top of life.</p> Md. Ashraful Islam, Md. Imran Khan Sharif, Md. Rasel Ahmmad Majumdar, Mst. Ishrat Jahan Copyright (c) 2021 American Scientific Research Journal for Engineering, Technology, and Sciences (ASRJETS) https://creativecommons.org/licenses/by-nc-nd/4.0 https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6484 Wed, 06 Jan 2021 19:18:42 +0000 Assessing the Relevance of Phonemic Awareness Activities in Foreign Language Teaching and Learning https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6515 <p>Phonemic awareness (PA) has been used primarily used to investigate children early reading comprehension and pronunciation skills and later on extended to second and foreign language vis-à-vis learners reading comprehension and pronunciation enhancement. Similarly, the current study uses PA activities based on Lee and VanPatten (2003) structured input activities model as an effective way to raise learners’ awareness of the English phonemes exposed to them in order to attend to them by efficiently identifying, representing, and manipulating them. The participants involved in this study are first year students from the Department of Anglophone studies who speak Moore as first language, French as intermediate language, and English as foreign language. Having difficulties identifying, representing, and manipulating English phonemes, this study aims at helping them via structured PA activities. Using the Mann Whitney Wilcoxon Test as a statistical treatment, the findings of this study prove the effectiveness of PA activities since the group that benefited from the intervention outperformed the control group that received no treatment with a P-value less than 0.05 as 0.0001&lt;0.5. In this logic the median of the PA group is higher than the control group: 14.5&gt;10 though it was approximatively the same before the treatment. Also, the Likert’s scales approach which is further used to correlate students’ reactions to the results of the experiment proves that almost all students appreciate the PA activities as relevant and beneficial. Therefore, structured PA activities should be recommended in foreign language teaching when phonology is involved (244 words).</p> <p>&nbsp;</p> <p>&nbsp;</p> Nathalie Djiguimkoudre Copyright (c) 2021 American Scientific Research Journal for Engineering, Technology, and Sciences (ASRJETS) https://creativecommons.org/licenses/by-nc-nd/4.0 https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6515 Thu, 07 Jan 2021 15:54:41 +0000 Integrative Review of Non-Financial Indicators Resulting from Social Innovation in Productive Chains https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6569 <p>In the literature there is no consensus on the definition of social innovation, its dimensions and causal relationships. The development of indicators becomes complex because the empirical research activity confronts concepts that differ paradoxically from metrics. This work contributes to discussion by offering an integrative review of non-financial indicators applied to productive chains with the objective of measuring social innovation activities, at the level of their links. The method used in the research was the integrative review in the periodicals Web of Science and Crossref databases, from June 2017 to June 2018. The main findings are that the models analyzed promote the organizational level as the appropriate level to measure social innovation activities. Despite these limitations, this work contributes to the field of measuring social innovation in three areas: (a) modeling a system (b) offering a mapping of organizational competencies and (c) based on this mapping, the model contributes to the Conception of specific incentives for the development of organizational competencies for the promotion of social innovations. The need to conceptually and empirically test the model in different socioeconomic environments to stabilize a social innovation monitor was observed.</p> Margarete Luisa Arbugeri, Maria Emilia Camargo, António Jorge Fernandes, Maria Elisabeth Pereira, Isadora Arbugeri Menegotto, Beatriz Lucia Salvador Bizotto Copyright (c) 2021 American Scientific Research Journal for Engineering, Technology, and Sciences (ASRJETS) https://creativecommons.org/licenses/by-nc-nd/4.0 https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6569 Fri, 08 Jan 2021 07:19:43 +0000 Efficacy of Apitherapy for Skin Regeneration https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6512 <p>In daily routine, skin may be exposed to diverse severity showing wounds and burns which heal at different rate. This variation in dermal recovery and regeneration rate indirectly indicates the physiological factors which function to reestablish internal normal state of the body. To speed up the process of skin healing, several cost effective local produce based boosters are utilized for treatment of dermal burns and injuries. In this regard, honey bee products are preferred as alternative than side effects inducing anthropogenic medicines. Apitherapy (bee therapy) is the broad-spectrum pharmaceutical appliance of honey, propolis, bee pollen, royal jelly, bee wax, bee venom and bee bread which are commonly obtained products from honey bees and are considered as ideal skin healers due to their suitable biochemical composition, antimicrobial, anti-inflammatory and other supportive qualities. Thus, further research efforts are required for better apiculture techniques and dose optimization of these bee products to replace many hazardous antibiotics and other synthetic drugs.</p> Anam Javed Copyright (c) 2021 American Scientific Research Journal for Engineering, Technology, and Sciences (ASRJETS) https://creativecommons.org/licenses/by-nc-nd/4.0 https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6512 Fri, 08 Jan 2021 07:28:15 +0000 Bacteriological Load Analysis of Moringa oleifera Lam. Leaves Consumed in Guinea Savannah Vegetation Zones of Nigeria https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6351 <p>Green leafy vegetables are consumed fresh or dried by human beings, for they are good sources of food rich in nutritional quality including beta-carotene, minerals, fibers and essential oils which play significant physiological role in human body including stimulating enzymes, reducing diseases such as diabetes, cancer and destroying bacteria such as <em>Salmonella species</em>, <em>Escherichia coli</em> and <em>Staphylococcus aureus</em>. The aim of this study is to evaluate the bacteriological load in <em>Moringa oleifera</em> Lam. leaves consumed in guinea savannah Vegetation zones of Nigeria, via: Abuja (Gwagwalada market), in Southern guinea savannah, Katsina (Daura market), in Northern guinea savannah and Sokoto (Central market), in Sudan guinea savannah. Three (3) fresh and dried <em>Moringa oleifera</em> Lam. leafy samples each of 50 grams were randomly collected per market location for analysis of total viable cells (cfu/mL) using standard procedures of analyses. The bacterial load in each sample was determined in triplicates and analyzed with SPSS Version 16. Bacterial isolates were classified on the basis of cultural morphology, Gram reaction and Biochemical tests.&nbsp;</p> <p>Results showed that there was bacterial growth on Nutrient, Mannitol and MacConkey media. Sabouraud dextrose, Brilliant green and Salmonella- Shigella media recorded no growth in all the leave extracts analyzed. This could be ascribed to the selective nature of the Sabouraud dextrose, Brilliant green and <em>Salmonella- Shigella</em> media, and suggested that fungi/yeast, <em>Salmonella species</em> and <em>Salmonella-Shigella species</em> were not among the bacterial contaminants or that the active ingredient component-Pterygospermin, in <em>Moringa oleifera</em> leaves extract inhibited the growth of micro-organisms in the leaves extract. The bacterial load in the dried leave extracts increased by 86.70 – 88.96% compared with the fresh leave extracts. The highest viable cell count (12.2 x 10<sup>4</sup>±6.95 cfu/mL) was recorded by Katsina dried leave, west of the market; while the lowest microbial load (1.0 x 10<sup>4</sup>±0.68 cfu/mL) was reported by Katsina and Sokoto fresh leave extracts. The study recorded two pathogenic bacteria from all the locations, with <em>Staphylococcus aureus</em> being more dominating, followed by <em>Escherichia coli</em>. These are indicator organisms for poor hygienic conditions and suggests health hazards. Consumers and vegetable vendors should be educated on proper hygienic handling, transportation and storage of vegetables to avoid bacteriological food spoilage and other related health issues.</p> Stanislaus Osuagwu Onyeberechiya, Patience Ihedigbo Ola, Tanko Onarigu Odeni Copyright (c) 2021 American Scientific Research Journal for Engineering, Technology, and Sciences (ASRJETS) https://creativecommons.org/licenses/by-nc-nd/4.0 https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6351 Fri, 08 Jan 2021 00:00:00 +0000 Renewable Energies Use for Hydrogen Production Powering Fuel Cell Vehicles in the Island of Crete, Greece https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6555 <p>The possibility of using indigenous renewable energies for electrolytic hydrogen production in Crete has been investigated. Hydrogen can be used for de-carbonization of the transportation sector in the island replacing all existing conventional vehicles with fuel cell electric vehicles. The required H<sub>2</sub> has been estimated as well as the electricity needed for its production via water electrolysis. Solar and wind energy is currently used for electricity generation with solar-PV systems and wind farms in Crete generating a significant amount of the island’s electricity consumption. The size and the cost of the solar-PV systems and the wind farms required for electricity generation, needed in electrolytic H<sub>2</sub> production, have been estimated. The hydrogen required for powering all fuel cell vehicles in Crete has been estimated at 53,037 tonsH<sub>2</sub>/year and the electricity required for its electrolytic production at 3,826,563 MWh. The size of the solar-PV systems generating the electricity required in water electrolysis is estimated at 2,710 MW<sub>p</sub> while their cost at bil.$ 3.25.&nbsp; The size of the wind farms generating the electricity required in water electrolysis is estimated at 1,501 MW<sub>el</sub> while their cost at bil.$ 1.50.&nbsp; It is concluded that local renewable energies can be used for electrolytic H<sub>2</sub> production in Crete although their installation cost is high. The results can be used for the creation of a roadmap regarding the de-carbonization of the island’s transportation sector.</p> John Vourdoubas Copyright (c) 2021 American Scientific Research Journal for Engineering, Technology, and Sciences (ASRJETS) https://creativecommons.org/licenses/by-nc-nd/4.0 https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6555 Fri, 15 Jan 2021 18:37:33 +0000 Chia Biofortification With Lithium Sources Applied by Foliar Fertilization https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6551 <p>Lithium (Li) is an element considered essential for humans, however, low concentrations in soil, water and food have caused low consumption by the world population. Consequently, fertilization via lithium leaf to increase its concentration in food employing biofortification is an alternative, given the growing health problems in the population caused by low intakes of this trace element. &nbsp;Thus, the objective was to evaluate doses and sources of lithium, applied by foliar fertilization in the development and productivity of chia, in the south of the state of Tocantins. The experiment was carried out at the Federal University of Tocantins, Campus de Gurupi, in the agricultural year 2016/17 in pots with 8dm<sup>3 </sup>containing a dystrophic red-yellow Latosol, with a clay texture, in a randomized block design, in a factorial scheme 5x2, with four replicates. The first factor was constituted by five doses (0, 10, 20, 30 and 40 g ha<sup>-1</sup>) and the second factor by two sources of Li (lithium hydroxide - LiOH and lithium sulfate - Li<sub>2</sub>SO<sub>4</sub>). Two applications were carried out by foliar fertilization, the first at 75 and the second at 95 days after transplanting. At 120 days, the characteristics of plant height, the height of the upper stem, stem diameter, bunch length, number of bunches and after harvest (145 days), the weight of a thousand grains, grain yield and Li content were evaluated in the grains. The supply via Li leaf through LiOH and Li<sub>2</sub>SO<sub>4</sub> sources promoted the biofortification of chia grains. The highest concentrations of Li in the grains were obtained with the application of 29.2 and 31.8 g ha<sup>-1</sup> of LiOH and Li<sub>2</sub>SO<sub>4</sub>, respectively. The best responses in cluster length, thousand-grain mass, and pH were obtained using LiOH. Regardless of the source, doses of lithium above 35 g ha<sup>-1</sup> promote a reduction in the morphological and agronomic characteristics evaluated in the culture of chia.&nbsp;</p> Guillermo Arturo Herrera Chan, Gil Rodrigues dos Santos, Marilene Alves Ramos Dias, Damiana Beatriz da Silva, Danilo Pereira Ramos, Larissa Urzêdo Rodrigues, Juliana Barilli, Patrícia Sumara Moreira, Daniel Fernando Salas Mendez, Juliana Marques Ferrari, Dayara Vieira Silva, Nivaldo Ribeiro Mascena Jr, Thiago Henrick Viana Leal, Rodrigo Ribeiro Fidelis Copyright (c) 2021 American Scientific Research Journal for Engineering, Technology, and Sciences (ASRJETS) https://creativecommons.org/licenses/by-nc-nd/4.0 https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6551 Sun, 17 Jan 2021 19:39:12 +0000 Increased Severity of COVID-19 In Obese Patients: a Meta-analysis https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6552 <p>The purpose of this research is to investigate the role of obesity in the pathogenesis of severe COVID‐19 infection. The relation between obesity and severe COVID-19 has not been completely recorded. PUBMED, Cochrane Clinical trials database, Google Scholar and MEDLINE were used to search for literature. Comprehensive Meta-analysis software and Excel were used to analyze data. The retrospective cohort study examined the correlation between BMI and in patients accepted in intensive care for COVID-19. Nine studies were chosen with a total of 340,811 patients were selected. Patients with a severe COVID-19 cases had varying pooled odds ratios based on BMI; for BMI of 25-29.9&nbsp;kg/m<sup>2 </sup>1.24 (random; 95% CI: 1.03-1.48; p = 0.374; I2 =0.000), for BMI of 30-34.9 kg/m<sup>2</sup> 2.01 (random; 95% CI: 1.41-2.88; p = 0.041; I2 = 59.942) and for BMI of ≥35 kg/m<sup>2</sup> 2.16 (random; 95% CI: 1.61-2.89; p = 0.172; I2 = 43.242). These studies also showed a linear increase in percentage of severe COVID-19 cases based on increasing BMI. The present study indicates a high frequency of obesity among patients accepted in intensive care for COVID-19. Disease severity escalates with Body mass index (BMI). Obesity is a risk factor for COVID-19 severity. Awareness of this severity is needed to be spread widely so as to curtail overweight or obesity.</p> Amina Ibrahim, Ezeh Nduamaka Ignatius, Sanjeevan Seevaratnam, Esther O Monday Copyright (c) 2021 American Scientific Research Journal for Engineering, Technology, and Sciences (ASRJETS) https://creativecommons.org/licenses/by-nc-nd/4.0 https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6552 Sun, 17 Jan 2021 20:47:06 +0000