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ECORFAN Journal Republic of Nicaragua最新文献

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Environmental impact of disposing of mouth covers, masks or respirators what alternatives do we have? 丢弃口罩、口罩或呼吸器对环境的影响我们有什么替代品?
ECORFAN Journal Republic of Nicaragua Pub Date : 2021-07-31 DOI: 10.35429/ejrn.2021.13.7.21.27
María Guadalupe Hernández-Rodríguez, L. Ortega-Chávez, Carmen Angelina Gallegos-Orozco, Iveth Selene CARO-ESCUDERO
{"title":"Environmental impact of disposing of mouth covers, masks or respirators what alternatives do we have?","authors":"María Guadalupe Hernández-Rodríguez, L. Ortega-Chávez, Carmen Angelina Gallegos-Orozco, Iveth Selene CARO-ESCUDERO","doi":"10.35429/ejrn.2021.13.7.21.27","DOIUrl":"https://doi.org/10.35429/ejrn.2021.13.7.21.27","url":null,"abstract":"The objective of this article is to study the different options we have to combat the environmental impact generated by the use and disposal of face masks, masks or respirators due to the pandemic that we have been suffering for more than a year (COVID-19). The growing demand for this article of personal protection has also brought with it a growing carbon footprint that we are generating towards the environment, because most of the facial masks that are used are not degradable and must be discarded after a single use. To achieve environmental sustainability, we must work and investigate other options for masks, masks or respirators that can be reused or that are biodegradable, in order to minimize the negative impact on our environment. The masks that are analyzed in this article for the raw material with which they are made are N95 and fabric masks, especially cotton ones.","PeriodicalId":334241,"journal":{"name":"ECORFAN Journal Republic of Nicaragua","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128055566","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}
引用次数: 0
Vinasse: current concepts, challenges and opportunities for the sustainability Vinasse:可持续发展的当前概念、挑战和机遇
ECORFAN Journal Republic of Nicaragua Pub Date : 2021-07-31 DOI: 10.35429/ejrn.2021.13.7.1.9
José Geraldo Ferraresi-De Araujo, Isaías Naú Niño-Castillo
{"title":"Vinasse: current concepts, challenges and opportunities for the sustainability","authors":"José Geraldo Ferraresi-De Araujo, Isaías Naú Niño-Castillo","doi":"10.35429/ejrn.2021.13.7.1.9","DOIUrl":"https://doi.org/10.35429/ejrn.2021.13.7.1.9","url":null,"abstract":"The objective was to highlight the historical documents that foresee the use and abuse of ethanol production (vinasse) in Brazil according to literature published in the period 1934-2020. The methodology used was documentary, the review and analysis of which brought with it the synthesis and perspectives of vinasse as well as its uses and abuses. Results: a) there are legal instruments in Brzil since 1934 whose goal is to care for the environment; b) about in 1978 was prohibited the direct dumping of stillage into bodies of water and c) in 2011 environmental guidelines were provided on this topic to achieve sustainability in the Brazilian space. Conclusions: 1) as can be seen in the cited literature, vinasse is one of the most impressive respurces for ethanol production; 2) Brazil is the second largest ethanol producer worldwide; 3) the use of stillage for cooling sugarcane fiekds, its organic content, chemical and biochemical oxygen demand rates are high and 4) the synergy between academics from universities, the government sector, civil society, companies in the productive chain of the sugar energy sector, among others, is important.","PeriodicalId":334241,"journal":{"name":"ECORFAN Journal Republic of Nicaragua","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123044610","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}
引用次数: 1
Determination of protein of edible insects 食用昆虫蛋白质的测定
ECORFAN Journal Republic of Nicaragua Pub Date : 2019-12-31 DOI: 10.35429/ejrn.2019.9.5.12.16
D. González-Aguilar, Diana Galván-Lozano, Carlos Pacheco-Gallardo, E. Cabrera-Díaz
{"title":"Determination of protein of edible insects","authors":"D. González-Aguilar, Diana Galván-Lozano, Carlos Pacheco-Gallardo, E. Cabrera-Díaz","doi":"10.35429/ejrn.2019.9.5.12.16","DOIUrl":"https://doi.org/10.35429/ejrn.2019.9.5.12.16","url":null,"abstract":"Mexico is a country with a wide variety of edible insects. Because of its high protein intake, insect consumption is proposed as a solution to hunger. However, studies on nutritional value are necessary.The objective of this work was the determination of chapulin protein. In this study, 14 chapulin (Sphenarium purpuarascens) samples collected in Guadalajara from Oaxaca and Morelos were analyzed and processed according to the Weende proximate analysis methodology that includes the Kjeldahl procedure for protein determination. The results on fresh weight basis were: water 22.68%, dry matter 77.32%, ashes 12.8%, fat 6.78%, fiber 3.38%, protein 33.15% and nitrogen free extract 21.21%. Protein digestibility was 91.21%. Because of the protein content, chapulin flour can be used as a protein ingredient in other food products.","PeriodicalId":334241,"journal":{"name":"ECORFAN Journal Republic of Nicaragua","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121268406","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}
引用次数: 0
Reinvigoration of deteriorated corn seed with wetting and drying technique 干湿技术对变质玉米种子的活化研究
ECORFAN Journal Republic of Nicaragua Pub Date : 2019-12-31 DOI: 10.35429/ejrn.2019.9.5.1.5
L. J. Arellano-Rodríguez, E. Rodríguez-Guzmán, Norberto Carrizales-Mejia, J. Jiménez-jiménez
{"title":"Reinvigoration of deteriorated corn seed with wetting and drying technique","authors":"L. J. Arellano-Rodríguez, E. Rodríguez-Guzmán, Norberto Carrizales-Mejia, J. Jiménez-jiménez","doi":"10.35429/ejrn.2019.9.5.1.5","DOIUrl":"https://doi.org/10.35429/ejrn.2019.9.5.1.5","url":null,"abstract":"With the objective of reinvigorating damaged corn seed, the technique of wetting and drying the seed with five types of water and 10 imbibition times. Estimating the variables emergency percentage, emergency speed, seedling length and root length, and plant height 30 days emergency. For the variable speed of emergency for imbibition time the highest vigor corresponded to 18 and 12h, and with an emergency percentage of 62% higher in 10% of the control, it was 4, 8 and 18h. In water types for emergency percentage, the highest values were observed in artesian well and Key water. In seedling length with values of 25 to 24 cm were distilled water 30h, artesian well 8h y 18h; and the control was 22 cm. In radicle length the highest values corresponded to E. Pure® 24h and key water 14h. For plant height in 8h artesian well present a value of 175 cm, and the control with a value of 165 cm.","PeriodicalId":334241,"journal":{"name":"ECORFAN Journal Republic of Nicaragua","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117056146","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}
引用次数: 0
Influence of nitrogen and organic fertilization in the production of pungence in the crop of chile jalapeño (Capsicum annum), in greenhouse and open sky 氮肥和有机肥对温室和露天辣椒jalapeño (Capsicum annum)生产辣度的影响
ECORFAN Journal Republic of Nicaragua Pub Date : 2019-12-31 DOI: 10.35429/ejrn.2019.9.5.17.20
Javier Arreguin-Soto, Walter Manuel Zúñiga-Maldonado, Nicolás Ortega-García
{"title":"Influence of nitrogen and organic fertilization in the production of pungence in the crop of chile jalapeño (Capsicum annum), in greenhouse and open sky","authors":"Javier Arreguin-Soto, Walter Manuel Zúñiga-Maldonado, Nicolás Ortega-García","doi":"10.35429/ejrn.2019.9.5.17.20","DOIUrl":"https://doi.org/10.35429/ejrn.2019.9.5.17.20","url":null,"abstract":"Capsaicin and dihydrocapsaicin are responsible for 90% of the pungency of the fruit; the rest of the capsaicinoids participate to a lesser extent in the itching, but contribute strongly to the diversity of spicy flavors in the different species of Capsicum. In the present project the application of 7 treatment T1 = Chemical, T2 = Chemical + Bioferment, T3 = Chemical + Leached, T4 = Bioferment, T5 = Leached, T6 = Bioferment + Leached, T7 = Chemical + Leached + Bioferment, in greenhouse was evaluated and in open sky, a randomized block design with three repetitions was established. The variables evaluated were plant height, temperature, relative humidity, production weight, fresh weight, root depth, dry weight and pH. The data generated in this research indicate that the treatment that generated the most amount of capsaicinoids was the chemical treatment in the greenhouse with 37.7 ml of capsaicinoids and in the open sky with 36.96 ml.","PeriodicalId":334241,"journal":{"name":"ECORFAN Journal Republic of Nicaragua","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122702731","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}
引用次数: 0
Identify healthy and dead cells simultaneity of Bacillus subtilis MZ through to use of propidium iodide and acridine orange 利用碘化丙啶和吖啶橙同时鉴定枯草芽孢杆菌MZ的健康细胞和死亡细胞
ECORFAN Journal Republic of Nicaragua Pub Date : 2019-12-31 DOI: 10.35429/ejrn.2019.9.5.21.27
Naieli Herrera-Reyes, V. Olalde‐Portugal, L. Sánchez-Segura
{"title":"Identify healthy and dead cells simultaneity of Bacillus subtilis MZ through to use of propidium iodide and acridine orange","authors":"Naieli Herrera-Reyes, V. Olalde‐Portugal, L. Sánchez-Segura","doi":"10.35429/ejrn.2019.9.5.21.27","DOIUrl":"https://doi.org/10.35429/ejrn.2019.9.5.21.27","url":null,"abstract":"The use of microorganism in a lot of process brings the development of new technologies. For guarantee the effect and the impact of the microorganism, even, the production rate when these microorganisms are involved in the production of a particular compound, become necessary know the number and condition of this organism. In the actuality, there are a lot of tools to identify this condition, since kits of staining cells, until, the best microscopy technology. But the use of this tools could become inaccessible due the high cost and in the case of de staining kits had a limited test. Then emerge the necessity to search and implement news methodologies to help us to identify health and death cells in different inoculs or products. In this work, we proposed a new technology for the simultaneous observation of healthy and dead cells trough the staining samples with propidium iodide and acridine orange using an optic microscopy with incandescent light and ultraviolet light.","PeriodicalId":334241,"journal":{"name":"ECORFAN Journal Republic of Nicaragua","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125593070","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}
引用次数: 0
Biogas production from cattle manure and sugar cane tip (Saccharum officinarum) 利用牛粪和甘蔗尖(Saccharum officinarum)生产沼气
ECORFAN Journal Republic of Nicaragua Pub Date : 2019-12-31 DOI: 10.35429/ejrn.2019.9.5.6.11
Karina Lizeth García-Jonguitud, Cuitláhuac Mojica-Mesinas, Eleazar Vidal-Becerra, Dulce Carolina Acosta-Pintor
{"title":"Biogas production from cattle manure and sugar cane tip (Saccharum officinarum)","authors":"Karina Lizeth García-Jonguitud, Cuitláhuac Mojica-Mesinas, Eleazar Vidal-Becerra, Dulce Carolina Acosta-Pintor","doi":"10.35429/ejrn.2019.9.5.6.11","DOIUrl":"https://doi.org/10.35429/ejrn.2019.9.5.6.11","url":null,"abstract":"The purpose was to study the use of bovine manure mixed with sugarcane tip (Saccharum officinarum) in the production of biogas. A semicontinuous biodigester prototype of 1.7 m long and 6 in. diameter was designed and built with CPVC material. The waste was collected fresh for physical-chemical characterization, based on basic laboratory methods. Then the prototype was put into operation under controlled conditions. The biodigester was fed in two moments: the first, with 200 g of manure diluted in 750 ml of water and the second with a mixture of 200 g of manure and 50 g of cane tip, diluted in 750 ml of water. Finally, the volume of biogas produced and its quality were measured, with a water column pressure gauge and with a 540 multitec device, respectively. The results show that manure with the cane tip generates more biogas, this is attributed to the higher percentage of volatile solids in the mixture, whose organic components were converted to methane. The biogas production studied is a management option for waste from the agricultural sector and thus mitigate CO2 emissions in the region.","PeriodicalId":334241,"journal":{"name":"ECORFAN Journal Republic of Nicaragua","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116252612","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}
引用次数: 0
GHG emissions in KG-CO2 / M2 generated by a House Type INFONAVIT INFONAVIT型住宅产生的温室气体排放量(KG-CO2 / M2)
ECORFAN Journal Republic of Nicaragua Pub Date : 2019-06-30 DOI: 10.35429/ejrn.2019.8.5.15.28
Humberto Aceves-Gutiérrez, Oscar López-Chávez, Santa Magdalena Mercado-Ibarra, Cesar Alejandro Contreras-Quintanar
{"title":"GHG emissions in KG-CO2 / M2 generated by a House Type INFONAVIT","authors":"Humberto Aceves-Gutiérrez, Oscar López-Chávez, Santa Magdalena Mercado-Ibarra, Cesar Alejandro Contreras-Quintanar","doi":"10.35429/ejrn.2019.8.5.15.28","DOIUrl":"https://doi.org/10.35429/ejrn.2019.8.5.15.28","url":null,"abstract":"Climate change is one of the main current problems, it concerns the entire human population since its effects are worldwide, especially now we have seen its consequences, according to Menghi (2007), the average global temperatures grew by more than 0.5 ° C in the last century, and the glaciers are disappearing from the earth. The greenhouse effect generated mainly by the gases of the same name (GHG), is the fundamental factor of climate change. Construction is one of the ways in which the human being contaminates in a constant way this due to urban growth and the demand for infrastructure that this generates. This research has the purpose of determining the KG-CO2 / M2 generated by a 44 m2 house of interest type INFONAVIT using the Life Cycle methodology (ACV) of the products or materials, established in ISO 14040, employee an inventory of KG-CO2 emissions from building materials, obtained from various bibliographic sources and databases and using the work volumes required to build the house. The results obtained of 161.57 Kg-CO2 / M2.","PeriodicalId":334241,"journal":{"name":"ECORFAN Journal Republic of Nicaragua","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124827732","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}
引用次数: 0
Air Quality Index for Ciudad Juárez based on a Community Collaboration Scheme 城市空气质素指数Juárez基于社区合作计划
ECORFAN Journal Republic of Nicaragua Pub Date : 2019-06-30 DOI: 10.35429/ejrn.2019.8.5.6.14
Nabile Edith Rodríguez-García, F. A. Vázquez-Gálvez, Fernando Estrada-Saldaña, Israel Hernández-Hernández
{"title":"Air Quality Index for Ciudad Juárez based on a Community Collaboration Scheme","authors":"Nabile Edith Rodríguez-García, F. A. Vázquez-Gálvez, Fernando Estrada-Saldaña, Israel Hernández-Hernández","doi":"10.35429/ejrn.2019.8.5.6.14","DOIUrl":"https://doi.org/10.35429/ejrn.2019.8.5.6.14","url":null,"abstract":"There is a global concern for the increase in health costs in a poor air quality relationship especially in urban environments. In Ciudad Juárez, Chihuahua, although it has a discontinuous monitoring of air quality, there is no air quality program that includes thresholds and contingencies for poor quality. This article proposes an environmental quality index based on the algorithms of other entities and climatic variables typical of the characteristics of the city of Ciudad Juárez and El Paso. The system is in the way of integrating the measurements of gases such as Ozone, CO and PM2.5 as well as the meteorological variables of humidity, wind speed and temperature. To obtain the above, it is necessary to strategically install sensors in different areas of the city, extract their information, store them in databases, analyze the data and create a citizen warning mechanism when the value of the index can harm the health of people. Citizen participation is a fundamental element in the development of the project. This article shows the development of the environmental quality index for Ciudad Juárez and the results of the project.","PeriodicalId":334241,"journal":{"name":"ECORFAN Journal Republic of Nicaragua","volume":" 27","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120941854","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}
引用次数: 0
Pilot Underground Greenhouse as an alternative against frequent and intense frosts that occur in the Hidalguense Highlands 试点地下温室作为一种替代方案，以防止发生在伊达尔冈瑟高原频繁和强烈的霜冻
ECORFAN Journal Republic of Nicaragua Pub Date : 2019-06-30 DOI: 10.35429/ejrn.2019.8.5.1.5
A. Ahumada-Medina, R. M. CHÍO-AUSTRIA, J. Ahumada-Gómez
{"title":"Pilot Underground Greenhouse as an alternative against frequent and intense frosts that occur in the Hidalguense Highlands","authors":"A. Ahumada-Medina, R. M. CHÍO-AUSTRIA, J. Ahumada-Gómez","doi":"10.35429/ejrn.2019.8.5.1.5","DOIUrl":"https://doi.org/10.35429/ejrn.2019.8.5.1.5","url":null,"abstract":"The prevailing weather conditions in the Valles Altos of the Mexican state of Hidalgo enhance high frequency of frosts that usually last from September to April, causing serious damage and constraints on agricultural cycles, both open sky and protected agriculture. In this paper, the results of observations of the behavior of temperatures during night and early morning hours of an underground greenhouse built on the campus of the Polytechnic University of Pachuca are reported. These data allow for an innovative approach to the production of horticultural, ornamental and medicinal plants during the period of frost. After four years of continuous experimentation, there have been cultivated horticultural, ornamental and medicinal plants, during all months of the year, even when they came to present -10 degrees Celsius or lower coolings. As observed, one can conclude that the results have been satisfactory to the experimental design and, therefore, may try to build greenhouses of 2000 square meters with trade capacity throughout the year with some adaptations derived from a larger area.","PeriodicalId":334241,"journal":{"name":"ECORFAN Journal Republic of Nicaragua","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125162615","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}
引用次数: 0
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