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A prototype for on-site generation of chlorinated disinfectant for use in rural aqueducts

Water Science and Engineering 2024年第1期17卷 33-40页

作者： Diana Marcela Cuesta Parra Felipe correa Mahecha Andrés Felipe Rubio Pinzon Davidcamilo Ramirez Bustos Leonel Alveyro Teran Llorente Miguel Fernando Jimenez Jimenez Chemical and Environmental Engineering department Fundacion Universidad de AmericaBogota 117111Colombia Chemical Engineering department Fundacion Universidad de AmericaBogota 117111Colombia Mecanical Engineering department Fundacion Universidad de AmericaBogota 117111Colombia

Sodium hypochlorite has significant potential as a sanitation solution in hard-to-reach *** studies have investigated the optimal electrolysis parameters for its production with volumes greater than 1o *** study evaluated sodium hypochlorite production through electrolysis in a 22-L prototype and identified the optimal operating *** were performed using graphite electrodes with areas of 68.4 cm^(2) at the laboratory scale and 1865.0 cm^(2) at the prototype scale.A design for experiments with different operating times,chloride concentrations,and electric current intensities was *** optimal operating time,sodium chloride concentration,and current intensity at the laboratory scale were 120 min,150 g of chloride per liter,and 3 A,respectively,leading to the production of 5.02 g/L of the disinfectant with an energy efficiency of 12.21 mg of Cl_(2) per *** the prototype scale,the maximum sodium hypochlorite concentration of 3.99 g of chloride per liter was achieved with an operating time of 120 min,a sodium chloride concentration of 100 g of chloride per liter,and a current intensity of 70 A,reaching an energy efficiency of 42.56 mg of Cl_(2) per *** addition,this study evaluated the influences of the chloride concentration,current intensity,and operating time on the production of sodium hypochlorite at the two scales,and formulated the equations showing the trends of sodium hypochlorite production and energy efficiency in the electrochemical *** 22-L prototype model for production of this oxidizing substance is promising for disinfection of large volumes of water in areas that are difficult to access.

关键词： Disinfection Electrolysis Energy efficiency Optimization Sodium hypochlorite

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MicroRNA-630:A promising avenue for alleviating inflammation in diabetic kidney disease

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World Journal of Diabetes 2024年第7期15卷 1398-1403页

作者： Javier Donate-correa Ainhoa González-Luis Jésica Díaz-Vera Juan Ramón Hernandez-Fernaud Research Unit University Hospital Nuestra Señora de Candelaria(UHNSC)Santa Cruz de Tenerife 38010Spain department of Biochemistry MicrobiologyCell Biology and GeneticsInstituto de Tecnologías BiomédicasUniversidad de La LagunaSanta Cruz de Tenerife 38000Spain

Diabetic kidney disease(DKD)is one of the complications of diabetes,affecting millions of people *** relentless progression of this condition can lead to kidney failure,requiring life-altering interventions such as dialysis or *** evidence suggests that immunologic and inflammatory elements play an important role in initiating and perpetuating the damage inflicted on renal tissues,exacerbating the decline in organ ***-like receptors(TLRs)are a family of receptors that play a role in the activation of the innate immune system by the recognition of pathogen-associated molecular *** data from in vitro and in vivo studies have highlighted the critical role of TLRs,mainly TLR2 and TLR4,in the pathogenesis of *** the diabetic milieu,these TLRs recognize diabetic-associated molecular signals,triggering a proinflammatory cascade that initiates and perpetuates inflammation and fibrogenesis in the diabetic *** non-traditional strategies targeting TLR signaling with potential therapeutic implications in DKD have been *** of these approaches is the use of microRNAs,small non-coding RNAs that can regulate gene *** editorial comments on the results of this approach carried out in a rat model of diabetes by Wu et al,published in this issue of the World Journal of *** results of the experimental study by Wu et al shows that microRNA-630 decreased levels compared to non-diabetic ***,microRNA-630 exerted anti-inflammatory effects in the kidneys of diabetic rats through the modulation of *** findings indicate that the microRNA-630/TLR4 axis might represent a pathological mechanism of DKD and a potential therapeutic target capable of curbing the destructive inflammation characteristic of DKD.

关键词： Diabetes Diabetic kidney disease Inflammation Toll-like receptor 4 microRNA-630

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Screening of Environmental Bacterial Strains for Wild Aedes Mosquito Larval Biocontrol

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Open Journal of Applied Sciences 2024年第9期14卷 2431-2442页

作者： Alexandre Paulo Machado Liliana Alves correa Gabriel de Paula Albuquerque Ana Lúcia Maria Ribeiro Rosina Djunko Miyazaki Jéssica da Silva Gava Dyego Bichofre Cruz Laboratory of Microbiology Medical Faculty Federal University of Mato Grosso Mato Grosso Brazil Laboratory of Entomology Institute of Biosciences Federal University of Mato Grosso Mato Grosso Brazil

The effectiveness of current control measures against Aedes mosquitoes remains low, resulting in persistent epidemics in urban areas. The emergence of resistant mosquito populations to chemical insecticides highlights the need for novel, environmentally friendly, cost-effective control strategies. This study explored the potential of environmental bacterial isolates to biocontrol wild Aedes larvae. Initially, we collected bacterial samples from infectious masses of Aedes fluviatilis larvae. The isolated bacteria were identified using biochemical, enzymatic, and molecular methods, including 16S rRNA sequencing and MALDI-TOF. Previously, Aeromonas hydrophila and Bacillus thuringiensis isolated from these infectious masses showed limited Aedes larval inhibition. Consequently, we screened additional environmental isolates from the bacteriotheque. Six isolates previously identified were tested: Chromobacterium violaceum, Enterobacter cloacae, Bacillus cereus, Bacillus sphaericus, and two strains of Bacillus thuringiensis israelensis. Among these strains, B. thuringiensis and C. violaceum exhibited significant inhibitory activities against wild Aedes larvae. Bacillus thuringiensis cultures grown under daylight conditions showed a slight ability to inhibit Aedes larvae. The potential of B. thuringiensis and C. violaceum strains studied, along with optimized culture growth conditions, will be further investigated to develop bioinsecticide products to provide safer and more sustainable alternatives for controlling larvae of Aedes mosquitoes.

关键词： Bacillus thuringiensis Chromobacterium violaceum Aedes Biocontrol Larval Inhibition

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Analysis of Citizen Participation in Urban Planning of Comala,Colima,Mexico-A Secondary Publication

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Journal of World Architecture 2024年第1期8卷 63-75页

作者： Amallinaly GCárdenas Aguilar Peter Chung Alonso Alicia Cuevas Muñiz Dora correa Fuentes Ignacio Barajas Avalos National Technological Institute of Mexico Mexico CityMexico University of Colima Colima 28040Mexico

The objective of this study was to determine the degree of citizen participation in urban planning processes in the municipality of Comala,Colima,Mexico to have a broader vision of the citizens and the environment in which they *** instrument was designed specifically to perform this study and the instrument was validated by calculating Cronbach’s *** results showed that citizens were highly involved in issues concerning their urban environment,and the main problems of the public spaces were also identified.

关键词： Citizen participation Planning Urban development program

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Photovoltaic-based DC microgrid with partial shading and fault tolerance

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Journal of Modern Power Systems and Clean Energy 2019年第2期7卷 340-349页

作者： Carlos correa-BETANZO hugo CALLEJA Carlos AGUILAR Adolfo R.LOPEZ-NUNEZ Elías RODRIGUEZ Electronics department National Center for Research and Development of Technology62490 CuernavacaMorelosMexico Electronics department Technological Institute of Celaya38010 CelayaGuanajuatoMexico

Partial shading is a common problem that affects bus regulation in DC microgrids with several photovoltaic(PV) modules as energy sources, as a result of reduced solar irradiance reaching the *** problem can be mitigated by incorporating batteries, but if they are not included, appropriate control strategies must be used. This paper presents a new approach in a PV-based DC microgrid, which provides a high-quality bus voltage regulation in islanding mode, without being affected by partial shading or problems associated with PV module connection and disconnection. The solution proposed herein ensures a proper voltage regulation without being affected by problems such as failures in PV modules or mismatch between them. Besides, it can help to prevent PV partial shade stress by disconnecting the affected modules. A further advantage of the approach is the flexibility to connect more PV modules. The advantages of this approach were verified in a 200 W prototype.

关键词： Photovoltaic Microgrid Partial shading Fault Control strategy

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Human pluripotent stem cell-derived extracellular vesicles:From now to the future

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World Journal of Stem Cells 2023年第5期15卷 453-465页

作者： Bruno Moises de Matos Marco Augusto Stimamiglio Alejandro correa Anny Waloski Robert Stem Cells Basic Biology Laboratory Carlos Chagas InstituteCuritiba 81350010ParanáBrazil

Extracellular vesicles(EVs)are nanometric particles that enclose cell-derived bioactive molecules in a lipid bilayer and serve as intercellular communication ***,in various biological contexts,EVs are reported to engage in immune modulation,senescence,and cell proliferation and ***,EVs could be key elements for potential off-the-shelf cell-free *** has been studied regarding EVs derived from human pluripotent stem cells(hPSC-EVs),even though hPSCs offer good opportunities for induction of tissue regeneration and unlimited proliferative *** this review article,we provide an overview of studies using hPSC-EVs,focusing on identifying the conditions in which the cells are cultivated for the isolation of EVs,how they are characterized,and applications already *** topics reported in this article highlight the incipient status of the studies in the field and the significance of hPSC-EVs’prospective applications as PSC-derived cell-free therapy products.

关键词： Pluripotent stem cells Extracellular vesicles Exosome Cell-free therapy

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Diversity of Saxicolous Lichens along an Aridity Gradient in Central México

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Phyton-International Journal of Experimental Botany 2022年第4期91卷 827-840页

作者： JoséCarmen Soto-correa Abraham Saldaña-Vega Víctor hugo Cambrón-Sandoval Laura Concostrina-Zubiri Mariela Gómez-Romero Facultad de Ciencias Naturales Universidad Autónoma de QuerétaroQuerétaro73230México departamento de Biología y Geología Física y Química Inorgánica Tulipán s/nUniversidad Rey Juan CarlosMóstolesMadrid28933España Cátedra CONACYT–Facultad de Biología Universidad Michoacana de San Nicolás de HidalgoMoreliaMichoacán58030México

Lichens are symbiotic organisms that comprise a fungus and a photosynthetic partner wich are recognized as a good indicator of climate ***,our understanding of how aridity affects the diversity of saxicolous lichens in drylands is still *** evaluate the relationship between saxicolous lichen diversity and aridity in a central México dryland,a geographical transect was established of 100 km to build an aridity gradient in the semiarid zone of the State of Querétaro,Mexico,comprising ten sampling sites with a 10 km *** richness,abundance and diversity of soil lichen species were recorded using two sampling methods:the quadrat-intercept and the line-intercept method,to compare their performance in assessing soil lichen diversity in *** number of species and Shannon diversity of saxicolous lichens were higher at intermediate values of the aridity index(AI=0.10-0.34).Quadrat intercept and point intercept methods gave quite similar results,which means that the selected method does not influence the results in a significant *** study confirms the role of saxicolous lichens as climate change indicators and reveals the importance of the sampling method selection in the evaluation of different parameters of soil lichen diversity in drylands.

关键词： Climate change drylands ecological indicators environmental stress precipitation temperature

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Why a World Journal of Gastroenterology?

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World Journal of Gastroenterology 2004年第19期10卷 2773-2774页

作者： Pelayo correa Boyd Professor Department of PathologyLouisiana State UniversityLSU Health Sciences Center1901 Perdido StreetBox P5-1New OrleansLA 70112USA

When a new medical journal is launched, the reaction is frequent: Why? Do we have already so much to read that we feel overwhelmed? But, the litmus test of a good new journal is: Does it find its way into the reading time of physicians and medical scientists? The new World Journal of Gastroenterology has the opportunity to pass that litmus test.

关键词： Gastroenterology Humans Periodicals World Health

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Partitioning between primary and secondary metabolism of carbon allocated to roots in four maize genotypes under water deficit and its effects on productivity

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The Crop Journal 2015年第5期3卷 379-386页

作者： Alyne Oliveira Lavinsky Paulo Cesar Magalhaes Roniel Geraldo avila Mariana Melo Diniz Thiago correa de Souza Embrapa Milho e Sorgo Sete LagoasMGCEP:35701-970Brazil Universidade Federal de Lavras LavrasMGCEP 37200-000Brazil Universidade Federal de Sao Joao del Rey Sete LagoasMGCEP 35701-970Brazil Universidade Federal de Alfenas AlfenasMGCEP 37130-000Brazil

Plants may respond to drought by altering biomass allocation to shoots and roots or by changing the metabolic activities in these organs. To determine how drought changes the partitioning of carbon allocated to growth and secondary metabolism in maize roots and how it affects photosynthesis(A) and productivity in maize, we evaluated leaf gas exchange, yield componentes, root morphology, and primary and secondary metabolites including total soluble sugars(TSS), starch(S), phenolics(PHE), and lignin(LIG). Data were collected from pot-grown plants of four maize genotypes: BRS 1010 and 2B710(sensitive genotypes) and DKB390 and BRS1055(tolerant genotypes) under two soil water tensions: field capacity(FC,-18 kP a) and water deficit(WD,-138 kP a). WD was applied at the pre-flowering stage for 12 days and then the water supply was restored and maintained at optimum levels until the end of the cycle. For genotype BRS 1055 under FC, the greatest A did not result in greater grain biomass(DGB) because the accumulated photoassimilates had already filled the cells, and thus the excessive TSS synthesized in leaves was allocated to roots in large amounts. However, the sharp decrease in A caused by WD imposition in this genotype did not affect the influx pressure of leaf TSS, which was due largely to conversion of primary metabolites to PHE compounds to increase the length of fine roots. In leaves of DKB390 under WD, both S and TSS were reduced, whereas PHE were increased to prevent excessive water loss and xylem cavitation. Under WD, both BRS1010 and2B710 genotypes displayed reduced allocation of biomass to shoots and roots and LIG content in leaves, as well as lower A and DGB values. In BRS1010 this response was coupled to S decrease in leaves and TSS increase in roots, whereas in 2B710 there was a concomitant S increase in roots.

关键词： Starch Sugars Lignin Phenols WinRHIZO

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Evaluation of design schemes for urban squares in arid climate cities,Mendoza,Argentina

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Building Simulation 2021年第3期14卷 763-777页

作者： Susana Stocco Maria Alicia Canton Erica correa INAHE-Instituto de Ambiente Habitat yEnergia-CONICETMendozaArgentina

The design of urban squares in the city of Mendoza,Argentina,is based on aesthetic and landscaping criteria without consider strategies to enhance the benefits that green areas generate on the city's micrometeorological *** paper aims to evaluate different design alternatives with the purpose to determine which proportion and distribution of green and sealed areas contributes to achieve the best conditions in terms of thermal behavior and ***-met software was used to simulate thermal conditions over twenty three scenarios,and COMFA method was employed to determine comfort in the scenarios that show the best thermal behaviour and are representative of current design *** results show that the most effective scheme for the memorial squares rehabilitation is the one concentrating 60%of woodlot around a sealed center with an area that does not exceed 20%the square *** effective alternative is the one concentrating 60%of woodlot at the center of the *** findings highlight the importance of an adequate relation between proportion and distribution of woodlot/sealed areas to improve thermal performance and comfort conditions of open spaces.

关键词： design of urban squares effective scheme of design alternativas de diseno proportion green/sealed distribution green/sealed

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