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Belowground Carbon and Nitrogen on a Thinned and Un-Thinned Seasonally Dry Tropical Forest

American Journal of Plant Sciences 2017年第9期8卷 2083-2100页

作者： deodato do nascimento aquino Eunice Maia de Andrade Andréa Dardes de Almeida Castanho Lécio Resende Pereira Júnior Helba Araújo de Queiroz Palácio Instituto Nacional de Colonização e Reforma Agrária Fortaleza Brazil Department of Agricultural Engineering Federal University of Ceará Fortaleza Brazil Woods Hole Research Center Falmouth USA Federal Institute of Education Science and Technology Iguatu Brazil

The aim of this study was to quantify the dynamics of herbaceous biomass and fine root productivity, and their relationship to stocks of carbon and nitrogen, in the Vertisols of two adjacent watersheds of a seasonally dry tropical forest (SDTF) under two different types of ground cover. The two watersheds are located in the county of Iguatu in the State of Ceará, Brazil. The control watershed of 2.1 ha, has been under regeneration for 35 years (RC35), while the second watershed (1.1 ha) was subjected to thinning for a period of 5 years (TC5). The sampled variables were herbaceous shoot biomass, fine roots, gravimetric moisture, the isotope δ13C (‰), total soil carbon (TSC) and total nitrogen (TN) in the 0 - 20, 20 - 40 and 40 - 60 cm layers, between April 2013 and March 2014. To quantify herbaceous shoot biomass, samples were taken monthly. For TSC and TN, the campaigns were held every two months. The data underwent analysis of means and were compared by t-test (p < 0.05). Under TC5, there was an increase in the stocks of TSC and TN of 151 and 137% respectively in the 40 - 60 cm layer, in relation to RC35. The implementation of thinning in a SDFT is seen as a management alternative to be considered in sustainability programs in the semi-arid region, contributing to maximising the production of herbaceous forage for feeding large and small ruminants, and for bee pasture, in addition to increasing the stock of carbon in the soil of SDFT and reducing global warming.

关键词： Carbon Sequestration Dry Forests Isotope δ13C Herbaceous Plants

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Colon and rectal cancer:An emergent public health problem

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World Journal of Gastroenterology 2024年第7期30卷 644-651页

作者： Marina Pinheiro David nascimento Moreira Michele Ghidini LAQV REQUIMTEDepartment of ChemistryFaculty of PharmacyUniversity of Porto4050-313 PortoPortugal Unidade de Saúde Pública Unidade Local de Saúde Barcelos/EsposendeBarcelinhos 4755-069BragaPortugal Medical Oncology Unit Fondazione IRCCS Ca’Granda Ospedale Maggiore PoliclinicoMilan 20122Italy

Colorectal cancer ranks third globally,with a high mortality *** the United States,and different countries in Europe,organized population screenings exist and include people between 50 and 74 years of *** screenings have allowed an early diagnosis and consequently an improvement in health *** and rectal cancer(CRC)is a disease of particular interest due to the high global burden associated with it and the role attributed to prevention and early diagnosis in reducing morbidity and *** study is a review of CRC pathology and includes the most recent scientific evidence regarding this pathology,as well as a diagnosis of the epidemiological situation of ***,the recommendation from a public health perspective will be discussed in detail taking into account the context and the most current recommendations.

关键词： Colon and rectal neoplasia Colon and rectal tumor Mortality Morbidity

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Evaluation of the Antibacterial and Antifungal Capacity of Nanoemulsions Loaded with Synthetic Chalcone Derivatives Di-Benzyl Cinnamaldehyde and Benzyl 4-Aminochalcone

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Journal of Renewable Materials 2024年第2期12卷 285-304页

作者： Flavia Oliveira Monteiro da Silva Abreu Taysse Holanda Joice Farias do nascimento Henety nascimento Pinheiro Rachel Menezes Castelo Hélcio Silva dos Santos Thais Benincá Patrícia da Silva Malheiros Júlio César Sousa Prado Raquel de Oliveira Fontenelle Maria Madalena de Camargo Forte Natural Polymers Laboratory PPGCNState University of CearáFortaleza60.714.903Brazil Polymeric Materials Laboratory PPGE3MFederal University of Rio Grande do SulPorto Alegre91501-970Brazil Natural Product Chemistry Laboratory PPGCNState University of CearáFortaleza60.714.903Brazil Food Hygiene and Microbiology Laboratory PPGCTAFederal University of Rio Grande do SulPorto Alegre91501-970Brazil Microbiology Laboratory Medicine SchoolFederal University of CearáSobral62010-560Brazil

With the increase in antimicrobial resistance,it has become necessary to explore alternative approaches for combating and preventing ***-cinnamaldehyde(CNM)and Benzyl4-amino(B4AM)are bioactive compounds derived from chalcones but with restricted solubility in aqueous *** can enhance the solubility of compounds and can be a promising alternative in the development of novel antimicrobials,with reduced side effects and prolonged *** objective of this study was to evaluate the stability of oil-in-water nanoemulsions loaded with two distinct types of chalcones at two different dosages,to propose a stable formulation with antimicrobial *** showed that nanoemulsions presented high encapsulation efficiency,low polydispersity index(PDI)and particle size below 200 nm,indicating that emulsification was a suitable method for nanoemulsion *** with higher dosages exhibited significant antimicrobial effects when compared to free chalcones and positive ***,B4AM nanoemulsions at higher dosages showed expressive activity against Salmonella minnesota,with a 420%greater inhibitory response compared to the free form and showing equivalence to the positive *** nanoemulsions showed excellent inhibitory activity at the highest dosage,equivalent to the positive control against *** and Staphylococcus *** greater number of conjugated bonds in CNM increased the antimicrobial activity in comparison with B4AM,and the formation of nanometric domains enhanced the bioavailability,being a promising alternative for antimicrobial applications.

关键词： Polysaccharide nanoemulsions S.aureus S.minnesota chalcones alginate

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Changes in calcium accumulation and utilization efficiency and their impact on recycling,immobilization,and export across the oil palm cycle

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Oil Crop Science 2024年第3期9卷 143-150页

作者： Ismael de Jesus Matos Viégas Luma Castro de Souza Eric Victor de Oliveira Ferreira Milton Garcia Costa Glauco André dos Santos Nogueira Vitor Resende do nascimento Candido Ferreira de Oliveira Neto Capanema Campus Federal Rural University of the Amazon(UFRA)Av.Barao de CapanemaCaixa D'agua5514-6434ParaBrazil Center of Agricultural and Environmental Sciences Federal University of Maranhao(UFMA)ChapadinhaBR-222km 04SNBoa Vista65500000MaranhaoBrazilc Capitao Poço Campus Federal Rural University of the Amazon(UFRA)Tv.Pau AmareloS/n-Vila Nova68650-000Capitao PoçoParaBrazil Department of Soil Science Sao Paulo State University(Unesp)School of Agricultural and Veterinarian SciencesJaboticabalVia de Acesso Prof.Paulo Donato CastelaneCastellane-S/N-Vila Industrial14884-900Sao PauloBrazil Institute of Agricultural Sciences(ICA) Federal Rural University of the Amazon(UFRA)Estr.Principal da Ufra2150Curio-Utinga66077-580BelemParaBrazil

Effective calcium(Ca)management is crucial for optimizing oil palm cultivation and enhancing crop *** study aimed to gain insights into the dynamics of Ca concentration,accumulation,exportation,immobilization,and recycling in various oil palm organs relative to plant *** experiment was conducted at the Agropalma enterprise site in the northeastern region of Para State,Brazil,evaluating seven plant age treatments:2,3,4,5,6,7,and 8 years *** a completely randomized design with four *** results demonstrated an age-related increase in Ca concentration in petioles,rachis,arrows,male inflorescences,peduncles,and ***,Ca accumulation exhibited an upward trend in all organs with progressing plant ***,the study revealed an enhanced Ca use efficiency across all plant organs in correlation with the age of oil palm *** findings underscore the dynamic nutritional demands of oil palm,influencing Ca immobilization,cycling,and export throughout its developmental stages.

关键词： Elaeis guineensis Jacq Ca cycling Ca export Ca immobilization Ca use efficiency Plant nutrition Amazon

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Endodontic irrigants from a comprehensive perspective

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World Journal of Clinical Cases 2024年第21期12卷 4460-4468页

作者： Rayana Duarte Khoury Lara Steffany de Carvalho Mauro Felipe Rios do nascimento Fadi Alhussain AmjadAbu Hasna Department of Restorative Dentistry Endodontics DivisionInstitute of Science and TechnologySão Paulo State UniversitySão Josédos Campos 12245000SPBrazil Department of Biosciences and Oral Diagnosis Institute of Science and TechnologySão Paulo State UniversitySão Josédos Campos 12245000SPBrazil School of Dentistry The National Institute of Higher Education and Postgraduate Studies Padre Gervásio-INAPÓSPouso Alegre 37550-121MGBrazil School of Dentistry Syrian Private UniversityAl Kiswah 877C+P2DamascusSyria School of Dentistry Universidad Espíritu SantoSamborondón 092301Ecuador

This review article explores the fundamental principles of modern endodontics with a focus on root canal cleaning and *** reviews commonly used endodontic irrigant,namely sodium hypochlorite(NaOCl),herbal extracts,chlorhexidine(CHX),and chelating agents,highlighting their properties,applications,and potential ***,a key antimicrobial agent,demonstrates effectiveness against various microorganisms but poses challenges such as high *** extracts,gaining recognition in endodontics,present an alternative with potential advantages in preserving dentin ***,known for its broad-spectrum antimicrobial activity,is discussed in both liquid and gel formulations,emphasizing its role in reducing smear layer formation and preserving hybrid layer *** agents,specifically ethylenediaminetetraacetic acid and citric acid,play a vital role in removing the smear layer,enhancing dentin permeability,and facilitating the penetration of antimicrobial *** review article underscores the importance of careful application and consideration of each irrigant's properties to ensure safe and effective endodontic *** serves as a valuable guide for clinicians in selecting appropriate irrigants based on specific treatment requirements.

关键词： Root canal irrigants Sodium hypochlorite Chlorhexidine Chelating agents Plant extracts

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Localized-states quantum confinement induced by roughness in CdMnTe/CdTe heterostructures grown on Si(111) substrates

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Journal of Semiconductors 2024年第9期 34-42页

作者： Leonarde do nascimento Rodrigues Wesley Fiorio lnoch Marcos L.F.Gomes Odilon D.D.Couto Jr. Bráulio S.Archanjo Sukarno Olavo Ferreira Physics Department Federal University of Vi?osa Instituto de Física Gleb Wataghin Universidade Estadual de Campinas National Institute of Metrology Quality and Technology (Inmetro) Materials Metrology Division (DIMAT)

This work shows that despite a lattice mismatch of almost 20%, CdMnTe/CdTe/CdMnTe heterostructures grown directly on Si(111) have surprisingly good optical emission properties. The investigated structures were grown by molecular beam epitaxy and characterized by scanning transmission electron microscopy, macro-and micro-photoluminescence. Low temperature macro-photoluminescence experiments indicate three emission bands which depend on the CdTe layer thickness and have different confinement characteristics. Temperature measurements reveal that the lower energy emission band (at 1.48 eV)is associated to defects and bound exciton states, while the main emission at 1.61 eV has a weak 2D character and the higher energy one at 1.71 eV has a well-defined (zero-dimensional, 0D) 0D nature. Micro-photoluminescence measurements show the existence of sharp and strongly circularly polarized (up to 40%) emission lines which can be related to the presence of Mn in the heterostructure. This result opens the possibility of producing photon sources with the typical spin control of the diluted magnetic semiconductors using the low-cost silicon technology.

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The Impact of the Monetary Policy During the COVID-19 in the Brazilian Banking Sector

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Chinese Business Review 2024年第2期23卷 60-75页

作者： Karina Robial Michele nascimento Jucá Mackenzie Presbiterian University Sao PauloBrazil

The COVID-19 pandemic caused an outbreak on the global productive chains,transforming companies and society in *** adopted anticyclical policies such as basic interest rates reduction as *** basic interest rate is denominated *** application of these policies requires the protagonist of bank’s financial *** study aims to verify two events-under the perspective of the efficient markets’*** first is the communication of the first death by COVID-19-and the subsequent,Selic rate reduction to 2%p.a.-and its effects on bank’s shares *** hypotheses presented are:H1-The announcement of the first death by COVID-19 negatively impacts the banks’shares returns and H2-The announcement of the Selic interest rate-during the COVID-19-positively impacts the return of the banks’*** adopt event study methodology in a final sample of nine and 15 banks to Events 1 and 2 *** results confirm H1 as well as the semi-strong informational efficiency market.H2 is not *** confirm the non-effectiveness of the anticyclical policy of basic interest rate *** contributes to the discussion about the impacts of COVID-19 and the efficacy of anticyclical policies.

关键词： monetary policy COVID-19 banks Brazil event study

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History Teacher Training from Decolonial Curriculum Practices to Combat Racism at UniProjeção in the Federal District-A Secondary Publication

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Journal of Contemporary Educational Research 2024年第2期8卷 187-202页

作者： Karoline da Silva Ramos Cláudia Pinheiro nascimento Francisca Carla Santos Ferrer Faculty of Philosophy Languages and Human SciencesUniversity of São PauloSão PauloBrazil

This article aims to understand the training process of history undergraduates,to see if there are decolonial curricular practices to combat racism at the Centro Universitário e Faculdade Projeção(UniProjeção)in the Federal District,to understand how coloniality has corroborated the exclusion of different epistemologies and the erasure of different cultures,and how this exclusionary process of coloniality interferes in the training of history *** order to combat this practice,we are looking for alternatives that can break these suppressions carried out by *** this way,we turn to decolonial ideas that aim to break with the logic of *** can conclude that these practices are poorly developed in the institution,so we proposed active problem-based methodology and music as a didactic *** playful educational tools that strengthen the teaching-learning process,they are active agents in the decolonial work of combating racism,and it is essential to train responsible and ethical teachers in the fight against racism and any form of oppression.

关键词： Coloniality Decoloniality Education Curriculum practices Racism

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Sex recognition does not modulate aggression toward nest intruders in a paper wasp

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Current Zoology 2023年第3期69卷 324-331页

作者： Andre Rodrigues de Souza Wilson Franca Amanda Prato Fabio Santos do nascimento Departamento de Biologia Faculdade de Filosofia Ciencias e Letras de Ribeirao PretoUniversidade de Sao PauloSao PauloBrazil

During social interactions,the behavior of an individual often depends on the sex of its social *** animal societies have males and females that play very different behavioral roles,although they coexist and interact *** specific phases of the colony cycle,social wasp females and males are contemporaries within a nest,they often interact,although mating occurs mostly off the nest,therefore providing an opportunity to test sex discrimination in contexts other than classical sexual *** performed a lure presentation experiment to test if Mischocyttarus metathoracicus discriminate between conspecifics of the 2 sexes during on-nest social *** wasps discriminated conspecific sex during experimentally simulated nest *** and chemical cues may account for this sex *** sex discrimination(evidenced by differential inspective behavior from the nest females toward the female and the male lures),female wasps were as aggressive toward lures of both *** the female-dominated hymenopteran societies,males are often subordinate and not aggressive on nest,resulting in females directing less aggression to them compared to other ***,*** males and females are both aggressive toward nestmates,so they might be perceived as similar threat during on-nest social interactions.

关键词： chemical cues Mischocyttarus sex discrimination social interactions social wasps visual cues

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Rice Germination and Its Impact on Technological and Nutritional Properties:A Review

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Rice science 2022年第3期29卷 201-215页

作者： LucasÁvila do nascimento Abhilasha ABHILASHA Jaspreet SINGH Moacir Cardoso ELIAS Rosana COLUSSI Department of Agroindustrial Science and Technology Federal University of PelotasPelotasUniversity Campuss/n96010-900PelotasRSBrazil Riddet Institute and Massey Institute of Food Science and Technology Massey UniversityPalmerston NorthNew Zealand Center for Chemical Pharmaceutical and Food SciencesFederal University of PelotasPelotasUniversity Campuss/n96010-900PelotasRSBrazil

Grain germination is a process involving numerous factors that influence the biochemical processes inside the plant *** review covered the abiotic factors that lead to the germination and significantly impact the nutritional properties and digestion behavior of rice *** macro-and micro-nutrients can be changed depending on the intensity of the applied variables during *** instance,germination time can increase the protein content in the grain and concurrently reduce its protein *** most cases,the number of bioactive compounds present in rice grains are increased regardless of germination *** can promote the complexation of nutrients and thus negatively interfere with the digestibility of *** review highlighted the influence of the germination process on the nutritional quality of rice grains,providing information about the germination conditions and their impacts on the anabolic and catabolic reactions of the grain,emphasizing the health benefits.

关键词： germinated rice nutritional aspect germination condition digestibility advantage

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