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Interface Recombination &Emission Applied to Explain Photosynthetic Mechanisms for (e–, h+) Charges’ Separation

World Journal of Nano Science and Engineering 2012年第2期2卷 58-87页

作者： Marco Sacilotti Denis Chaumont Claudia Brainer Mota Thiago Vasconcelos frederico dias nunes Marcelo Francisco Pompelli Sergio Luiz Morelhao Anderson S. L. Gomes Departament of Eletronics and Systems Federal University of Pernambuco Recife Brazil Department of Physics Federal University of Pernambuco Recife Brazil Institute of Physics University of Sao Paulo Sao Paulo Brazil Nanoform Group ICB & UFR Science and Technology University of Burgundy Dijon France Plant Physiology Laboratory Department of Botany Federal University of Pernambuco Recife Brazil

To copy natural photosynthesis process we need to understand and explain the physics underneath its first step mechanism, which is “how to separate electrical charges under attraction”. But this Nature’s nanotechnological creation is not yet available to the scientific community. We present a new interpretation for the artificial and natural photosynthetic mechanism, concerning the electrical charges separation and the spent energy to promote the process. Interface (e–, h+) recombination and emission is applied to explain the photosynthetic mechanisms. This interpretation is based on energy bands relative position, the staggered one, which under illumination promotes (e–, h+) charges separation through the action of an interface electric field and energy consumption at the interface of both A/B generic materials. Energy band bending is responsible by the interface electric field (and the driving force) for the charges separation. This electric field can be as high or above that for p-n semiconductor junctions (104 - 105 V/cm). This physical effect is not considered by most of the researches. Without an electric field and without spending energy to separate electrical charges, any other existing model violates physical laws. The staggered energy band type is the only energetic configuration that permits charges separation under illumination and energy loss to perform the process. Application to natural photosynthesis and artificial photovoltaic material and their energetic configurations are discussed. Examples for A/B being III-V/III-V, TiO2/materials and II-VI/II-VI staggered energy band gap pairs are presented. In the proposed quantum mechanism, plants are able to eliminate most of the 79% of the absorbed visible light, according to the published reflection and transmission data. Moreover, the proposed mechanism can be applied to explain green fluorescent protein - GFP, charge transfer states - CTS and Fluorescent Resonance Energy Transfer - FRET. As recent litera

关键词： Solar Energy Renewable Energy Photovoltaic Photosynthesis Type II Interfaces Staggered Interface Interface Emission Interface Recombination Quantum Photosynthesis Solar Cell FRET GFP

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Tracheobronchial Polyflex stents for the management of benign refractory hypopharyngeal strictures

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World Journal of Gastroenterology 2012年第6期18卷 551-556页

作者： Rui Almeida Silva Nuno Mesquita Pedro Pimentel nunes Elisabete Cardoso Ricardo Marcos Pinto Luís Moreira dias Department of Gastroenterology Instituto Português de Oncologia do Porto Francisco GentilR.Doutor António Bernardino de Almeida 4200-072PortoPortugal Department of Gastroenterology Centro Hospitalar do PortoLargo Prof.Abel Salazar 4099-001PortoPortugal

AIM:To describe a modified technique for placement of a tracheobronchial self-expanding plastic stent(SEPS) in patients with benign refractory hypopharyngeal strictures in order to improve dysphagia and allow stricture ***:A case series of four consecutive patients with complex hypopharyngeal strictures after combinedtherapy for laryngeal cancer,previously submitted to multiple sessions of dilation without lasting improvement,is *** patients underwent placement of a small diameter and unflared tracheobronchial *** outcome measurements were improvement of dysphagia and avoiding of repeated ***:The modified introducer system allowed an easy and technically successful deployment of the tracheobronchial Polyflex stent through the *** four patients developed complications related to stent *** patients had stent migration(one proximal and one distal),two patients developed phanryngocutaneous fistulas and all patients with stents in situ for more than 8 wk had hyperplastic tissue growth at the upper end of the *** recurrence was observed at 4 wk follow-up after stent removal in all patients CONCLUSION:Although technically feasible,placement of a tracheobronchial SEPS is associated with a high risk of *** diameter stents must be kept in place for longer than 3 mo to allow adequate time for stricture remodeling.

关键词： Larynx neoplasms Hypopharynx Strictures Dilation Stents

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Modelling the role of ground-true riparian vegetation for providing regulating services in a Mediterranean watershed

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International Soil and Water Conservation Research 2023年第1期11卷 159-168页

作者： Bruno A.Aparício João Pedro nunes Léonard Bernard-Jannin Luis Filipe dias Andre Fonseca Teresa Ferreira cE3c-Centre for Ecology Evolution and Environmental Changes&CHANGE-Global Change and Sustainability InstituteFaculty of SciencesUniversity of LisbonLisbonPortugal Forest Research Centre&Laboratory TERRA School of AgricultureUniversity of LisbonLisbonPortugal Soil Physics and Land Management Group Wageningen University and ResearchWageningenNetherlands Longline Environment Ltd LondonUK

Intensive agricultural and industrial activities are often considered major sources of water ***,riparian vegetation(RV)is increasingly being promoted as a solution to balance the potentially adverse effects that agriculture may have on water ***,existing RV is often overlook in recent modelling efforts,failing to capture the current amount of ecosystem services ***,we used the Soil and Water Assessment Tool ecohydrological model to simulate the influence of ground-true RV on i)nutrient(nitrate and total phosphorus)and sediment exports from agricultural areas and ii)its effect for in-stream *** results are further compared against a set of hypothetical scenarios of different RV widths and different *** results point to a great rele-vance of existing RV in controlling in-stream concentration of sediments and nutrients where pressure from agriculture is highest,preventing them to surpass limits set in the EU Water Framework *** the other hand,in areas with industry discharges,the role of RV is limited and model results suggest that restoring RV would have limited *** illustrate how existing RV may already provide strong but not acknowledged water quality regulation services,how these services can differ substantially between nearby streams,and that effective strategies to improve water quality using RV must acknowledge existing patterns of vegetation,land use and contamination sources.

关键词： Agricultural pollution Riparian vegetation Ecosystem services Hydrological services Mediterranean region

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Protection status as determinant of carbon stock drivers in Cerrado sensu stricto

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Journal of Plant Ecology 2020年第3期13卷 361-368页

作者： Kelly Marianne Guimarães Pereira Natielle Gomes Cordeiro Marcela de Castro nunes Santos Terra Marcela Venelli Pyles Christian dias Cabacinha JoséMárcio de Mello Eduardo van den Berg Department of Biology Federal University of LavrasCampus UniversitárioCEP 37200-000LavrasMinas Gerais stateBrazil Department of Forest Sciences Federal University of LavrasCampus UniversitárioCEP 37200-000LavrasMinas Gerais stateBrazil Department of Forest Sciences Institute of Agrarian SciencesFederal University of Minas GeraisCampus Regional de Montes ClarosCEP 39.404-547Montes ClarosMinas Gerais stateBrazil

Aims Natural vegetation plays an important role in global carbon cycling and ***,the Cerrado(Brazilian savannah)is considered a carbon sink because of its intrinsic *** aim was to evaluate how the aboveground biomass and biodiversity relationship change between three Cerrado remnants with different protection status:a‘control area’(Legal Reserve area),a protected area(PA)and a non-protected area(Non-PA).Methods All three studied fragments are situated in northern Minas Gerais state,*** estimated the aboveground carbon stocks based on the forest *** also measured three dimensions of biodiversity metrics for each plot:functional trait dominance,taxonomic diversity and functional *** following functional traits were evaluated for the species:wood density,maximum diameter and seed *** carried out generalized linear models seeking to evaluate how carbon stocks,community-weighted mean(CWM)trait values,species richness and diversity,and functional diversity indices differ among the *** Findings The Cerrado areas without protection status had lower carbon stocks,species richness,species diversity,functional richness and functional dispersion,whereas both PA and Non-PA had lower CWM maximum diameter and seed size compared with the Legal Reserve control *** linear models showed that carbon stocks,species and functional richness metrics were correlated within and across sites,and thus,species richness could serve as a good proxy for functional richness and carbon *** carbon stocks were positively driven by species richness and CWM maximum diameter,while they were negatively driven by functional *** richness,species diversity and CWM seed size appeared in the set of best models,but with no significant direct effect on carbon ***,we concluded that absence of protection in the Cerrado areas decreases both species richness and carbon stocks.

关键词： functional traits biodiversity biomass storage Brazilian Savanna human impacts

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Biochar produced from Amazonian agro-industrial wastes:properties and adsorbent potential of Cd^(2+) and Cu^(2+)

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Biochar 2019年第4期1卷 389-400页

作者： Yan nunes dias Edna Santos Souza Hercilia Samara Cardoso da Costa Leônidas Carrijo Azevedo Melo Evanise Silva Penido Cristine Bastos do Amarante Orivan Maria Marques Teixeira Antonio Rodrigues Fernandes Institute of Agricultural Sciences Federal Rural University of Amazon(ICA-UFRA)C.P.917BelemPara 66077-530Brazil Department of Soil Science Federal University of LavrasCP 3037Campus UFLALavrasMinas Gerais 37200-000Brazil Department of Chemistry Federal University of LavrasCP 3037Campus UFLALavrasMinas Gerais 37200-000Brazil Museu Paraense Emílio Goeldi Coordination of Earth Sciences and EcologyBelémPará66077-830Brazil Soil and Plant Laboratory Brazilian Agricultural Research Corporation-Embrapa Eastern AmazoniaBelémPará66000-000Brazil

In the Amazon region,several residues that have been misused can serve as feedstocks for biochar production with the aim of recovering soils contaminated by heavy ***,these biochars need to be firstly tested for their adsorption capacity as well as their physicochemical attributes prior to field ***,this study aimed to characterize and evaluate the adsorption capacities of Cd^(2+) and Cu^(2+) of biochars produced from acai(BA),Brazil nut(BN),and palm kernel cake(BK)*** were produced by slow pyrolysis at four different temperatures(400,500,600,and 700℃).The physicochemical properties of the biochars,such as cation exchange capacity,ash,recalcitrance index,and aromaticity were enhanced with increased pyrolysis *** adsorption capacities of Cd^(2+) and Cu^(2+) showed high correlations with the physicochemical properties of biochar,indicating the importance of these characteristics in the adsorption ***,the adsorption of Cd^(2+) and Cu^(2+) also increased with the increase in the pyrolysis *** a competitive system,Cd^(2+)exhibited higher adsorption capacity than Cu^(2+) for all *** general,BN showed the highest adsorption capacity,followed by BK and *** produced from the Amazonian residues have the potential to improve soil quality when used as amendments in the recovery of soils contaminated with Cd and Cu,representing an environmentally sound technology for the reuse of these residues.

关键词： Pyrolysis Environmental contamination Adsorption

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Polymorphisms of folate metabolism genes in patients with cirrhosis and hepatocellular carcinoma

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World Journal of Hepatology 2016年第29期8卷 1234-1243页

作者： Nathália Perpetua Peres Ana Lívia Silva Galbiatti-dias Marcia Maria Urbanin Castanhole-nunes Renato Ferreira da Silva Erika Cristina Pavarino Eny Maria Goloni-Bertollo Mariangela Torreglosa Ruiz-Cintra Genetics and Molecular Biology Research Unit UPGEM Sao Jose do Rio Preto Medical School FAMERP and Medical School Fundation FUNFARME Study Group of Liver Tumors GETF Hospital de Base Federal University of the Triangulo Mineiro UFTM

AIM To evaluated the association of the risk factors and polymorphisms in MTHFR C677 T, MTHFR A1298 C, MTR A2756 G and MTRR A66 G *** Patients with cirrhosis(n = 116), hepatocellular carcinoma(HCC)(n = 71) and controls(n = 356) were included. Polymerase chain reaction followed by enzymatic digestion and allelic discrimination technique real-time PCR techniques were used for analysis. MINITAB-14.0and SNPstats were utilized for statistical analysis. RESULTS Showed that age ≥ 46 years(OR = 10.31; 95%CI: 5.66-18.76; P < 0.001) and smoking(OR = 0.47; 95%CI: 0.28-0.78; P = 0.003) were associated with cirrhosis. Age ≥ 46 years(OR = 16.36; 95%CI: 6.68-40.05; P < 0.001) and alcohol habit(OR = 2.01; 95%CI: 1.03-3.89; P = 0.039) were associated with HCC. MTHFR A1298 C in codominant model(OR = 3.37; 95%CI: 1.52-7.50; P = 0.014), recessive model(OR = 3.04; 95%CI: 1.43-6.47; P = 0.0051) and additive model(OR = 1.71; 95%CI: 1.16-2.52; P = 0.0072) was associated with HCC, as well as MTR A2756 G in the additive model(OR = 1.68; 95%CI: 1.01-2.77; P = 0.047), and MTRR A66 G in the codominant model(OR = 3.26; 95%CI: 1.54-6.87; P < 0.001), dominant model(OR = 2.55; 95%CI: 1.24-5.25; P = 0.007) and overdominant model(OR = 3.05; 95%CI: 1.66-5.62; P < 0.001). MTR A2756 G in the additive model(OR = 1.54; 95%CI: 1.02-2.33; P = 0.042) and smokers who presented at least one polymorphic allele for MTRR A66G(OR = 1.71; 95%CI: 0.77-3.82; P = 0.0051) showed increased risk for cirrhosis. There was no association between clinical parameters and polymorphisms. CONCLUSION Age ≥ 46 years, alcohol habit and MTR A2756 G, MTHFR A1298 C and MTRR A66 G polymorphisms are associated with an increased risk of HCC development; age ≥ 46 years, tobacco habit and the MTR A2756 G polymorphism are associated with cirrhosis.

关键词： Polymorphism Folate metabolism Liver cirrhosis Hepatocellular carcinoma

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Geoprocessing Applied in the Estimate of Infiltration and Surface Runoff in HPP’s Contribution Watershed

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Journal of Geographic Information System 2021年第6期13卷 643-659页

作者： Elizon dias nunes Patrícia De Araújo Romão Maurício Martines Sales Marta Pereira Da Luz Institute of Socio-Environmental Studies Federal University of Goiás Goiania Brazil School of Civil and Environmental Engineering Federal University of Goiás Goiania Brazil Eletrobras Furnas Aparecida de Goiania Brazil Polytechnic School Pontifical Catholic University of Goiás Goiania Brazil

The knowledge of the hydrological regime contributes to the prediction of periods of higher or lower water supply as a function of the frequency and volume of rainfall in relation to the pedological, land cover, and land use conditions. This work aims at evaluating the spatio-temporal variability of the infiltration and runoff potential of an area formed by 4 sub-basins tributary to the São Marcos River in Cristalina (GO). The SCS/NRCS-USDA (2004) method was used, using geoprocessing resources, considering soils in dry, semi-humid and humid conditions. The estimates indicate that rainfall with an average of 6.83 mm, in the September-October transition, in the face of soils in the dry condition does not provide surface runoff. Thus, the variability of pedological characteristics associated with the various conditions of coverage and land use indicates that even the areas with lower infiltration potential begin to contribute effectively with their respective channels in the transition from October to November, when rainfall events are more frequent and significant, and the soils are already in conditions of greater humidity.

关键词： Rainfall Height Runoff Coefficient Hydrological Behavior

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Mycelial Growth of Pleurotus Spp in Se-Enriched Culture Media

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Advances in Microbiology 2013年第8期3卷 11-18页

作者： Marliane de Cássia Soares da Silva Mateus dias nunes Jose Maria Rodrigues da Luz Maria Catarina Megumi Kasuya Departamento de Microbiologia Federal University of VicosaCampus UFVVicosaBrazil

Selenium (Se) is an essential element to human. However, this element can be in low content in soil of some regions. Se deficiency may cause Keshan disease, thyroid dysfunction and osteoarthritis. The Se-enriched cereals are an interesting way to prevent these diseases. But, recent studies have shown that Se-enriched mushrooms are a better Se source. This occurs due to the high capacity of the fungi to absorb and transform the inorganic Se to organic forms, which are more bioavailable. Pleurotus ostreatus and Pleurotus eryngii are mushrooms species worldwide consumed and able to Se bioaccumulate. However, depending on the level of this element, it can be toxic for the fungus. Here we showed that the presence of the Se in culture medium decreases fungal growth rate, hyphae diameter and septum distance and causes alteration in color of colony. A garlic strong smell was directly proportional to Se level. P. eryngii was more tolerant to Se than P. ostreatus. So, it is important to screen this element level for Se-enriched mushroom production.

关键词： Mushrooms Colony Morphology Food Sodium Selenite Hyphae Diameter

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Excessive Moderator Band in a Female Cat’s Left Ventricle

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Open Journal of Veterinary Medicine 2018年第4期8卷 47-53页

作者： Eduarda Aléxia nunes Louzada dias Cavalcanti Stefania dos Santos Gazzinelli Mary Suzan Varaschin Guilherme Albuquerque de Oliveira Cavalcanti Department of Veterinary Medicine Universidade Federal de Pelotas Pelotas Brazil Faculdade de Estudos Administrativos de Minas Gerais (FEAD) Belo Horizonte Brazil Department of Veterinary Medicine Universidade Federal de Lavras Lavras Brazil

This report describes a case of cardiomyopathy associated with excessive moderator bands in a 7 years old cat. In the cat echocardiography examination was observed cardiomegaly, decreased systolic function and thinning of the left ventricle wall. The electrocardiogram showed the occurrence of supraventricular tachycardia. The treatment was initiated with digoxin, furosemide and taurine supplementation, with an improvement of the clinical signs, however the animal died in a fall. The diagnosis of cardiomyopathy associated with excessive moderator band, was based on the multiple cardiac bunds which connect the septum to the free wall of the left ventricle observed in the cat necropsy.

关键词： Cardiomyopathy Feline Cardiac Muscle Bundles

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米格:以双交链技术引领保温隔热涂料领域变革

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住宅产业 2020年第10期 73-74页

作者： Wolfgang Bonder Dr frederico dias Brandao 王其能 Material Innovative Gesellschaft mbH Germany 米格(浙江)创新科技有限公司

米格(浙江)创新科技有限公司(以下简称“米格”)是一家中德合资企业,位于浙江省永康市,公司秉承创新才能领先的理念,把绿色环保、节能减排作为自己的历史使命,向德国工业4.0看齐。一、对建筑围护结构节能材料的探索,米格针对建筑围护结... 详细信息

米格(浙江)创新科技有限公司(以下简称“米格”)是一家中德合资企业,位于浙江省永康市,公司秉承创新才能领先的理念,把绿色环保、节能减排作为自己的历史使命,向德国工业4.0看齐。一、对建筑围护结构节能材料的探索,米格针对建筑围护结构节能工作的探索已经有了很长时间,传统方法主要是加贴传热系数小厚度大的材料,俗称“穿棉袄”。包起来就是热传导隔热法,要求隔热材料传热系数小厚度大,这种传导隔热节能法,材料的检测和热工计算非常普及。

关键词：浙江省永康市热工计算中德合资企业节能减排隔热材料绿色环保保温隔热涂料围护结构节能

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