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Organ Abscission in Plants: With Special Emphasis on Bell Pepper

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Phyton-International Journal of Experimental Botany 2024年第7期93卷 1467-1484页

作者： Ramiro Reyes-Castro Héctor G.Núñez-Palenius Juan I.Valiente-Banuet mar.a E.Sosa-Morales Blanca E.Orosco-Alcalá Rafael Guzmán-Mendoza Graciela M.L.Ruiz-Aguilar Rogelio Costilla-Salazar Life Sciences Division Universidad de GuanajuatoIrapuato36500México School of Engineering and Sciences Tecnologico de MonterreyQuerétaro76130México

Bell pepper(Capsicum annuum L.),along with potato and tomato,is one of the three most cultivated vegetables in the *** pepper is worldwide accepted due to its characteristics of color,smell,ﬂavor,and *** pepper is also considered a nutritious food due to its vitamin and antioxidant *** Mexico,bell pepper production has a high value because it is grown for the international markets,particularly the United States of ***,the abscission ofﬂowers and fruits is a factor that limits the yield,hinders the planning of activities,and causes a variation in the prices of *** to the importance of this process,in this work we did a bibliometric analysis and literature review of scientiﬁc advances for the understanding of the abscission pro-cess in plants,and in particular for the bell ***,we introduce new perspectives that would help direct future research about organ abscission in ***,the lack of research that would further clarify abscis-sion process in the bell pepper plant is discussed.

关键词： Capsicum annuum abscission zone plant growth regulators environmental factors

Fractions of a chloroform extract of ajenjo leaves (Artemisiamendozana DC. var. mendozana) inhibit the proliferation,viability and clonogenicity of B16-F0 melanoma cells

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BIOCELL 2020年第3期44卷 293-299页

作者： mar.a elisa MILLÁN mar.a FERNANDA mar.a LEONARDO ANDRÉS SALVARREDI EMILIO FERNANDO LIZARRAGA LUIS ALBERTO LOPEZ Universidad Nacional de Cuyo MendozaArgentina Comisión Nacional de Energía Atómica Buenos AiresArgentina Fundación Escuela de Medicina Nuclear MendozaArgentina Fundación Miguel Lillo y Universidad Nacional de Tucumán San Miguel de TucumánArgentina

The ajenjo,Artemisia mendozana ***(Asteraceae),grows in the Andean foothills of Mendoza and San Juan,Argentina,and is used as a medicinal plant for its antispasmodic and antifungal *** aim of this work was to obtain fractions of a chloroform extract of ajenjo leaves and to evaluate the in vitro effects on proliferation,viability and clonogenicity of B16-F0 melanoma *** a silica gel chromatography column,120 fractions were collected and grouped according to the chromatographic profile in 9 main fractions(F1–F9).Their major compounds identified were:terpenes(F1),terpenes and sesquiterpene lactones(F2–F3),sesquiterpenes(F4–F6)and phenols and sesquiterpenes(F7-9).B16-F0 cells were incubated for 72 h with DMSO(vehicle)or 0.1 mg/ml F1–*** 72 h of culture,F1 decreased both the growing index(GI)and cell viability.F2 and F3 both decreased GI and only F3 decreased clonogenic activity.F4 and F5 both decreased *** F5 decreased cell viability and F4 decreased ***,fractions F6–F8 did not affect any of the cell parameters assayed,while F9 decreased cell viability and inhibited clonogenicity.

关键词： Terpenes Sesquiterpene lactones Sesquiterpenes Phenols

Modeling and Simulation of an Organic Photovoltaic Cell: ITO/MoO3/CARAPA/PCBM/Alq3/Al with SCAPS

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Modeling and Numerical Simulation of Material Science 2024年第3期14卷 79-96页

作者： Donafologo Soro Adama Sylla Aboudramane Gbané Bamba Abdoulaye Franck Julia mari Guaita Amal Bouich Siaka Toure Bernabé marí Dpartement des Sciences et Technologie Ecole Normale Suprieure (ENS) dAbidjan Abidjan Cte dIvoire LASMES Laboratory (Laboratory of Material Sciences Environment and Solar Energy) Universit FHB DAbidjan-Cocody Abidjan Cte dIvoire Unit de Formation et de Recherche Sciences Technologiques Universit de Man Man Cte dIvoire Departament de Fsica Aplicada-IDF Universitat Politcnica de Vlencia Vlencia Spain

Renewable energies are of major interest due to their inexhaustible and clean nature, with minimal impact on the environment. Numerous technological pathways exist in this field, each distinguished by the materials used and their implementation principles. However, the cost-efficiency ratio remains a significant challenge for researchers. Currently, organic materials are gaining popularity due to their relatively low cost. However, their performance, particularly in terms of conversion efficiency, still requires improvements. This study focuses on optimizing the organic photovoltaic cell ITO/MoO3/CARAPA/PCBM/Alq3/Al using SCAPS. Several parameters were considered, such as layer thickness, recombination center density, and doping, to improve the cell’s performance. The optimal parameters obtained include an efficiency of 3%, a fill factor of 81.67%, an open-circuit voltage of 1610 mV, and a short-circuit current of 2.28 mA/cm2. The study also revealed that doping the phenyl-C61-butyric acid methyl ester (PCBM) layer has a significant impact on efficiency and short-circuit current, improving these parameters up to a certain point before causing degradation due to increased recombination. Furthermore, high doping of the tri (8-hydroxyquinoline) aluminum (Alq3) layer improves performance up to a critical threshold, after which degradation is also observed. In contrast, doping the molybdenum trioxide (MoO3) layer does not have a notable impact on cell performance. Regarding the thickness of the active Carapaprocera (CARAPA) and PCBM layers, non-optimal values lead to a decrease in performance. Similarly, an optimal thickness of the Alq3 layer significantly improves efficiency. These results highlight the importance of parameter optimization to maximize the efficiency of organic solar cells.

关键词： Renewable Energie Solar Cells Simulation Organic Materials Performance

Efficacy of Combined Phacoemulsification and Goniosynechialysis in the Treatment of Patients with Primary Angle Closure Disease and Concomitant Cataract at Preah Ang Duong Hospital in Cambodia

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Open Journal of Ophthalmology 2024年第3期14卷 284-312页

作者： Channdarith Kith Piseth Kong Kossama Chukmol Bunseng Sea Seiha Do Meng Ngy Amarin mar Ratneary Hav Saly Saint Department of Ophthalmology Preah Ang Duong Hospital Phnom Penh Cambodia Department of Ophthalmology Khmer-Soviet Friendship Hospital Phnom Penh Cambodia Faculty of Medicine University of Health Sciences Phnom Penh Cambodia

Background: Goniosynechialysis is a surgical procedure that has been shown to slow the progression of glaucoma in oriental eyes with chronic angle closure glaucoma. This procedure was successful in 80% of cases, and the peripheral anterior syenchiae did not exist until one year later. Nonetheless, there is little evidence of its efficacy in our context. Our study aims to investigate the efficacy of goniosynechialysis during phacoemulsification in patients with primary angle closure disease and concomitant cataract. Methods: This was an observational, prospective study. The intra-ocular pressure, need for anti-glaucoma drugs, visual acuity, the extent of synechiae, anterior chamber depth, surgical success rate, and other indicators were monitored for at least three months following surgery. Results: This study included 114 patients (118 eyes), 61 with chronic angle closure glaucoma (51.69%), 33 with primary angle closure (27.97%), and 24 with acute attack angle closure (20.34%), who were surgically treated with phacoemulsification and goniosynechialysis (Phaco-GSL). The mean intra-ocular pressure had significantly decreased three months after surgery (pre- vs post-op: 22.04 ± 10.86 vs 15.41 ± 6.06 mmHg, p-value p-value p-value p-value p-value Conclusion: Regardless of the type of glaucoma, combined phacoemulsification-goniosynechialysis is effective in lowering pressure, restoring vision, reducing the need for anti-glaucoma drugs, and preventing the synechial recurrence. Success was higher in eyes with less extensive synechiae. Phaco-GSL is safe and effective in the treatment of primary angle closure diseases with co-existing cataract.

关键词： Efficacy Phacoemulsification Goniosynechialysis Primary Angle-Closure Disease Chronic Angle-Closure Glaucoma Gonioscopy Intra-Ocular Pressure Peripheral Anterior Synechiae Anti-Glaucoma Drugs Anterior Chamber Depth

The Effectiveness of the Havriliak-Negami Model in Predicting the Master Curves of the Asphalt Blends with SBS Triblock Copolymer and Organic-Montmorillonite at Different Temperatures and Frequencies

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Journal of Materials Science and Chemical Engineering 2024年第7期12卷 23-39页

作者： mar.a Ángeles Vargas-Hernández Miguel Ángel Vargas Pedro R. García-Morán Humberto Vázquez-Torres Divisin de Ingeniera Qumica y Bioqumica TecNMTecnolgico de Estudios Superiores de Ecatepec Edo. de Mxico Mxico Facultad de Qumica Universidad Nacional Autonma de Mxico Cd. de Mxico Mxico Facultad de Ciencias Bsicas Ingeniera y Tecnologa Universidad Autnoma de Tlaxcala Tlaxcala Mxico Departamento de Fsica Universidad Autnoma Metropolitana-Iztapalapa Cd. de Mxico Mxico

The dynamic viscoelastic properties of asphalt AC-20 and its composites with Organic-Montmorillonite clay (OMMt) and SBS were modeled using the empirical Havriliak-Negami (HN) model, based on linear viscoelastic theory (LVE). The HN parameters, α, β, G0, G∞and τHN were determined by solving the HN equation across various temperatures and frequencies. The HN model successfully predicted the rheological behavior of the asphalt and its blends within the temperature range of 25˚C - 40˚C. However, deviations occurred between 40˚C - 75˚C, where the glass transition temperature Tg of the asphalt components and the SBS polymer are located, rendering the HN model ineffective for predicting the dynamic viscoelastic properties of composites containing OMMt under these conditions. Yet, the prediction error of the HN model dropped to 2.28% - 2.81% for asphalt and its mixtures at 100˚C, a temperature exceeding the Tg values of both polymer and asphalt, where the mixtures exhibited a liquid-like behavior. The exponent α and the relaxation time increased with temperature across all systems. Incorporating OMMt clay into the asphalt blends significantly enhanced the relaxation dynamics of the resulting composites.

关键词： Asphalt Blends Master Curve Linear Viscoelasticity Havriliak-Negami Model

Hydrogeochemical Studies in Drought Scenarios: Canelones, Uruguay Case Study

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Journal of Geoscience and Environment Protection 2024年第5期12卷 188-217页

作者： Karina Pamoukaghlian Elena Alvareda mar.ano Cáceres Rebeca Panzl marcelo Aboy Sofìa Da Rocha Pablo Gamazo mar.a Paula Collazo Instituto de Ciencias Geoló gicas Facultad de Ciencias Universidad de la Rep&#250blica Montevideo Uruguay Departamento del Agua Centro Universitario Regional Litoral Norte Universidad de la Rep&#250blica Salto Uruguay Á rea Toxicolog&#237a Departamento Estrella Campos Facultad de Qu&#237mica Universidad de la Rep&#250blica Montevideo Uruguay

The water scarcity in quality and quantity is becoming more noticeable and an urgent concern around the world. In Uruguay, these issues become exacerbated by the need to obtain drinking water in coastal areas, influenced by the climate change. Basic and structural geologies are strong conditioners in heterogeneous coastal aquifers. The objective of this study is to characterize the hydrochemistry of the fractured aquifers after having identified the main bearing fractures and the causes of aleatoreous water scarcity and quality problems, for hydric resources sustainable management. Identification of water bearing fracture, hydrogeochemical analysis and water quality evaluation are specific objectives. Some strategies were performed: 1) a base map in QGIS Software;2) fracture photointerpretation;3) geological correlation;4) statistical analysis of the background geochemistry data;5) ions analysis of strategically located wells. There were found water bearing fractures corresponding to 28 m3/h maximum flow rate for the NW-SE and 12 m3/h maximum flow rate for the NE-SW fracture direction, respectively. Besides, there could be a problem related to the high Sodium (Na) and Chloride (Cl) levels. In this respect, having previous data from 25 well samples, ions geochemical analysis has been carried out for 14 wells from Costa Azul and surrounding to have a first approach about the possible cause for the high values of Na (max. 385 mg/L) and Cl (max. 381 mg/L). The selected area for this study has a particular characteristic, because it corresponds to a heterogeneous fractured aquifer, which makes it difficult to catch water with enough flow rates and water quality to meet the population demand.

关键词： Water Bearing Fractures Hydrogeochemistry Water Quality Sustainable Management

Treatment of Vulvovaginal Candidiasis with A Strategy Based on Phototherapy (M.A.C.^® Scar Acceleration Method)

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Modern Research in Inflammation 2024年第1期13卷 1-7页

作者： marcus Vinicius de Mello Pinto Karin Yuri Fernández Iturra Aline Ronis Sampaio mar.a Elena Silva Álvarez Esteban Fortuny Celulare Institute Petrópolis Brazil Bienus Clinic Santiago Chile Fisiocare Curicó Chile Universidad Finis Terrae Santiago Chile

Candidiasis, also known as candidiasis vulvovaginitis, is an infection caused by different types of Candida fungi, the most frequent being Candida albicans. The present study reports an effective strategy, which opens new avenues for the treatment of this public health problem. The MAC® Methodology, conventional laser light-emitting (LLLT)/LED) methods are based on the biphasic response demonstrated many times in LLLT research and as with other forms of drugs, a “drug” (irradiation parameters) and a “dose” (irradiation times) and the “Arndt-Schulz Law” is often cited as a suitable model to describe the dose-dependent effects of LLLT. This method uses photopharmaceuticals, cell markers and the use of correct parameters for each case to induce the acceleration of tissue repair. The present study shows a case of a 32-year-old patient diagnosed with recurrent candidiasis 4 years ago. Eighteen sessions were performed (every other day) using a photoactivated component (Methylene blue 1% + Clotrimazole 1%) and LED phototherapy (red, blue and violet) with emission times of 60 - 260 seconds for each applicator, according to the dose recommendations of the scar acceleration method (MAC®). At the sixth treatment session there was a noticeable decrease in the itching sensation reported by the patient. In session 11 she reported feeling a great improvement, indicating that she no longer felt itching in any area after 18 sessions. The present case demonstrates new methodologies to treat common problems in the population that have a positive impact on the quality of life. This methodology has a promising future because it is non-invasive and requires a great biological transformation for inflammatory, fungal and viral control.

关键词： Treatment of vulvovaginal Candidiasis Candidiasis Candida M.A.C. MAC®

Dendritic nanoarchitecture imparts ZSM-5 zeolite with enhanced adsorption and catalytic performance in energy applications

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Journal of Energy Chemistry 2023年第5期80卷 77-88,I0003页

作者： mar.a del mar.alonso-Doncel Cristina Ochoa-Hernández Gema Gómez-Pozuelo Adriana Oliveira JoséGonzález-Aguilar ángel Peral Raúl Sanz David P.serrano Thermochemical Processes Unit IMDEA Energy InstituteAvda.Ramon de la Sagra3E28935MostolesMadridSpain Department of Heterogeneous Catalysis Max-Planck-Institut für KohlenforschungKaiser-Wilhem-Platz14540Muheim an der RuhGermay Department of Chemical and Environmental Technology Rey Juan Carlos UniversityC/Tulipan s/nE28933MostolesMadridSpain High Temperature Processes Unit IMDEA Energy InstituteAvda.Ramon de la Sagra3E28935MostolesMadridSpain Department of Chemical Energy and Mechanical TechnologyRey Juan Carlos UniversityC/Tulipan s/n28933MostolesMadridSpain

The development of zeolites possessing dendritic features represents a great opportunity for the design of novel materials with applications in a large variety of fields and,in particular,in the energy sector to afford its transition towards a low carbon *** the current work,ZSM-5 zeolite showing a dendritic3D nanoarchitecture has been synthesized by the functionalization of protozeolitic nanounits with an amphiphilic organosilane,which provokes the branched aggregative growth of zeolite *** ZSM-5 exhibits outstanding accessibility arising from a highly interconnected network of radially-oriented mesopores(3-10 nm)and large cavities(20-80 nm),which add to the zeolitic micropores,thus showing a well-defined trimodal pore size *** singular features provide dendritic ZSM-5 with sharply enhanced performance in comparison with nano-and hierarchical reference materials when tested in a number of energy related applications,such as VOCs(toluene)adsorption(improved capacity),plastics(low-density polyethylene)catalytic cracking(boosted activity)and hydrogen production by methane catalytic decomposition(higher activity and deactivation resistance).

关键词： Dendritic ZSM-5 VOCs adsorption Plastics cracking Methane decomposition Hydrogen production

Detection of β-Glucuronidase Activity within Actinomadura madurae Grains of Human Actinomycetoma

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Advances in Microbiology 2014年第6期4卷 317-323页

作者： Alejandro Palma-Ramos Samantha Reyes-Mayén Laura Estela Castrillón-Rivera Silvia Elena Fernández-López Carmen Padilla-Desgarennes mar.a elisa Vega-Memije Roberto Arenas-Guzmán mar.a elisa drago-serrano Teresita Sainz-Espunes Department of Biological Systems Universidad Autónoma Metropolitana-XochimilcoMexico CityMéxico Dermatology Center“Dr.Ladislao de la Pascua” Mycology ServiceMexico City Health SecretaryMexico CityMéxico General Hospital“Manuel Gea González” Dermatology ServiceMexico City Health SecretaryMexico CityMéxico General Hospital“Manuel Gea González” Mycology ServiceMexico City Health SecretaryMexico CityMéxico

Actinomycetoma syndrome by Actinomadura (A.) madurae is characterized by a subcutaneous chronic lesion that affects fascia, muscle and bone. A. madurae produces colonies that form grains of less than 1 mm in diameter. Grains are surrounded and infiltrated by neutrophils involved in the grain disruption by enzymes like β-glucuronidase released after the neutrophil degranulation. The aim of this work was to evaluate the polysaccharide degradation of grains treated with β-glucuronidase and to detect the presence and activity of β-glucuronidase within the A. madurae grains. Actinomadura madura grains from patients infected were processed to quantify the total content of polysaccharide with the phenol-sulfuric acid reaction. Grains were treated with β-glucuronidase at different conditions to evaluate the optimal polysaccharide degradation. Grains were analyzed to detect the enzyme by using anti-human β-glucuronidase antibody while enzymatic activity was assessed by evaluating the release of reduced sugars and by in situ enzymatic activity. Optimal degradation of polysaccharide in the grains treated with β-glucuronidase was found with 300 units/ml of enzyme and 24 hr of incubation at 37°C. Presence and activity of β-glucuronidase enzyme within the grains were detected. Results suggested that β-glucuronidase present within A. madurae grain resulted from degranulated neutrophils surrounding and/or infiltrated within the grain.

关键词： Actinomycetoma A. madurae β-Glucuronidase