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Prognosis of forest production using machine learning techniques

Information Processing in Agriculture 2023年第1期10卷 71-84页

作者： Jeferson Pereira Martins Silva Mayra Luiza Marques da Silva Adriano Ribeiro de Mendonca Gilson Fernandes da Silva Antoˆnio Almeida de Barros Junior Evandro Ferreira da Silva Marcelo Otone Aguiar Jeangelis Silva Santos nı´vea maria mafra rodrigues Federal University of Espirito Santo UFESDepartment of Forestry and Wood ScienceAvenue Governor Lindemberg31629550-000 Jeroˆnimo MonteiroESBrasil b Departamento de Cieˆncias Agra´riasUniversidade Federal de Sa o Joa del-Rei Sete Lagoas CampusHighway MG 424-Km 47Sete LagoasMinas Gerais 35701-970Brazil Federal University of Para(UFPA) University Campus of AltamiraStreet Cel.Jose Porfırio2515Sa o Sebastiao68372-040 AltamiraPABrazil

Forest production and growth are obtained from statistical models that allow the generation of information at the tree or forest stand *** the use of regression models is common in forest measurement,there is a constant search for estimation procedures that provide greater ***,machine learning techniques have been used with satisfactory performance in measuring ***,methods such as Adaptive neuroFuzzy Inference System(AnFIS)and Random Forest are relatively poorly studied for predicting the volume of wood in eucalyptus plantations in ***,it is essential to check whether these techniques can provide gains in terms of ***,this study aimed to evaluate the use of Random Forest and AnFIS techniques in the prognosis of forest *** data used come from continuous forest inventories carried out in stands of eucalyptus *** data were divided into 70%for training and 30%for *** algorithms used to generate rules in AnFIS were Subtractive Clustering and ***,training was done with the hybrid algorithm(descending gradient and least squares)with the number of seasons ranging from 1 to *** RFs were trained,varying the number of trees from 50 to 850 and the number of observations by five leaves to *** neural networks and decision trees were also trained to compare the feasibility of the *** evaluation of the estimates generated by the techniques for training and validation was calculated based on the following statistics:correlation coefficient(r),relative Bias(RB),and the relative root mean square error(RRMSE)in *** general,the techniques studied in this work showed excellent performance for the training and validation data set with RRMSE valuesnd r>*** RF presented inferior statistics about the AnFIS for the prognosis of forest *** Subtractive Clustering(SC)and Fuzzy-C-Means(FCM)algorithms provide accurate baseline

关键词： Artificial Intelligence Ensemble Learning Forest Measurement Forest inventory Artificial neural networks Regression

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A machine learning approach to predict response to immunotherapy in type 1 diabetes

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Cellular & Molecular Immunology 2021年第3期18卷 515-517页

作者： Georgia Fousteri Ely Montee rodrigues Gian maria Giamporcaro Marika Falcone Regulation of Adaptive immunity Unit Transplantation and Infectious DiseasesIRCCS San Raffaele Scientific InstituteMilanItaly Experimental Diabetes Unit Division of ImmunologyTransplantation and Infectious DiseasesDiabetes Research Institute(DRI)IRCCS San Raffaele Scientific InstituteMilanItaly

Type 1 diabetes(T1D)is an autoimmune disease mediated by selfreactive T cells that destroy insulin-producing β cells of the pancreatic islets.1 The disease is a complex multifactorial disorder resulting from a poorly defined interaction between genetic and environmental *** 40-50% of the disease risk is linked to genes,with the remaining risk arising from environmental factors.

关键词： diabetes immunotherapy autoimmune

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Physics, chemistry, and Hirshfeld surface analyses of gamma-irradiated thalidomide to evaluate behavior under sterilization doses

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Journal of Pharmaceutical Analysis 2018年第3期8卷 194-201页

作者： Valner A.F.S.n.Mussel Max R Ferreira maria B.E Marques maria I.Yoshida mariana R.Almeida Bernardo L.rodrigues Wagner n.Mussel Departamento de Quimica ICExUniversidade Federal de Minas Gerais-UFMGAv.Antonio Carlos 662731270-901 Belo HorizonteMGBrazil CnEn-CDTn Comissao Nacional de Energia Nuclear-Centro de Desenvolvimento da Tecnologia NuclearAv.Antonio Carlos6627 Belo HorizonteMGBrazil

Thalidomide was indicated as a sedative and antiemetic and prescribed for pregnant women. Its tragic teratogenic effects culminated in withdrawal from the market. Since the discovery of its anti-angiogenic and anti-inflammatory actions, thalidomide has been used in the treatment of leprosy and multiple myeloma, which justify studies of its stability. We investigated the effects of irradiation of thalidomide up to 100 kGy （fourfold the usual sterilizing dose for pharmaceutics）. The polymorph of thalidomide was obtained in an isothermal experiment at 270℃. All samples underwent gamma irradiation for specific times. At different doses, decomposition of the pharmaceutical was not observed up to 100 kGy. The observed effect was angle turning between the phthalimide and glutarimide rings modulated by repulsion towards the carbonyl group, leading to a stable energetic configuration, as measured by the equilibrium in the torsion angle after irradiation. The thalidomide molecule has a center of symmetry, so a full turn starting from 57.3° will lead to an identical molecule. Further irradiation will start the process again. Samples irradiated at 30 and 100 kGy have more compact unit cells and a lower volume, which leads to an increase in the intermolecular hydrogen interaction within the unit cell, resulting in higher thermal stability for polymorph α.

关键词： Thalidomide Thermal stability Polymorphs Gamma irradiation Hirshfeld

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Rat cardiomyocyte H9c2(2-1)-based sulforhodamine B assay as a promising in vitro method to assess the biological component of effluent toxicity

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Journal of Environmental Sciences 2020年第10期32卷 163-170页

作者： Elsa T rodrigues Susana F nascimento maria Joao Moreno Paulo J Oliveira Miguel A Pardal University of Coimbra Centre for Functional EcologyDepartment of Life SciencesCalcada Martim de FreitasCoimbra 3000-456Portugal University of Coimbra Coimbra Chemistry CenterDepartment of ChemistryCoimbra 3004-535Portugal Centre for neuroscience and Cell Biology Uniuersity of CoimbraUC BiotechBiocant ParkCantanhede 3060-197Portugal

The treatment of wastewaters is crucial to maintain the ecological status of receiving waters,and thereby guarantee the protection of aquatic life and human *** quality evaluation is conventionally based on physicochemical parameters,but increasing attention has been paid to integrate physicochemical and biological ***,the regulatory use of fish in biological testing methods has been subject to various ethical and cost concerns,and in vitro cell-based assays have thus become an important topic of ***,the present study intends:(a) to evaluate the efficiency of two different sample pre-concentration techniques (lyophilisation and solid phase extraction) to assess the toxicity of municipal effluents on rat cardiomyoblast H9c2(2-1) cells,and (b) maximizing the use of the effluent sample collected,to estimate the environmental condition of the receiving *** gathered results demonstrate that the H9c2(2-1) sulforhodamine B-based assay is an appropriate in vitro method to assess biological effluent toxicity,and the best results were attained by lyophilising the sample as *** to its response,the H9c2(2-1) cell line might be a possible alternative in vitro model for fish lethal testing to assess the toxicity of municipal *** physicochemical status of the sample suggests a high potential for eutrophication,and iron exceeded the permissible level for wastewater discharge,possibly due to the addition of ferric chloride for wastewater *** general,the levels of carbamazepine and sulfamethoxazole are higher than those reported for other countries,and both surpassed the aquatic protective values for long-term exposure.

关键词： Municipal wastewater treatment plant effluent Lyophilisation Solid phase extraction Cell-based assays H9c2(2-1)cell line SRB assay

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Mycoflora and Mycotoxicological Quality of Four Freshly Harvested Paddy Rice Cultivars and Relation with Harvest to Industry Reception Timing

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Rice science 2013年第4期20卷 303-308页

作者： Menithen BEBER-rodrigues Vildes maria SCUSSEL Laboratory of Mycotoxicology and Food Contaminants Food Science and Technology DepartmentCenter of Agricultural SciencesFederal University of Santa Catarina.Rodovia Admar Gonzagan.1346ItacorubiFlorianópolis 88034-001Santa CatarinaBrazil

Grain quality and safety of four freshly harvested paddy rice （Oryza sativa L.） cultivars （Epagri 109, SCS 114 Andosan, Tio Taka 113 and Epagri 115 CL） grown under irrigation system in the north of Santa Catarina State, Brazil were studied. The quality parameters evaluated were mycoflora, mycotoxins （aflatoxins, ochratoxin A and zearalenone）, water distribution （moisture content and water activity） apart from environmental conditions （relative humidity and temperature） and the relation between harvest and the industry reception timing. All cultivars presented an average waiting time of 8.6 h （ranged from 0.3 to 24.9 h）, a total fungi load of 8.6x104 cfu/mL （ranged from 1.8x103 to 9.4x105 cfu/mL） with a rather high humidity condition of 19.0% moisture content （varied from 14.9% to 24.5%） and 0.92 water activity （varied from 0.78 to 0.99） under the average environmental conditions of 87.3% relative humidity （varied from 80.0% to 96.8%） and 25.4 ~C （varied from 22.5 to 27.5 ~C）, respectively. The conditions to which the samples were submitted allowed fungal growth, but no mycotoxins were detected. Regarding the rice cultivars fungal genera isolated, Aspergillus and Penicillium were the most often isolated among all the cultivars and variation on fungi distribution among them was not observed. Moreover, it was not found a correlation of the grain loading ＆ unloading time with the humidity conditions and the total fungi load. Furthermore, all results and the importance of monitoring the rice mycotoxicological quality and safety were discussed.

关键词： fungus mycotoxin paddy rice harvest to industry reception timing

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Antioxidant Migration Studies in Chitosan Films Incorporated with Plant Extracts

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Journal of Renewable Materials 2018年第5期6卷 548-558页

作者： Victor Gomes Lauriano Souza Patricia Freitas rodrigues maria Paula Duarte Ana Luisa Fernando MEtRiCS Departamento de Ciências e Tecnologia da BiomassaFaculdade de Ciências e Tecnologia(FCT)Universidade NOVA de LisboaCampus da Caparica2829-516 CaparicaPortugal CEnIMAT/I3n Departamento de Ciências dos MateriaisFaculdade de Ciências e Tecnologia(FCT)Universidade NOVA de LisboaCampus da Caparica2829-516 CaparicaPortugal

The aim of this work was to develop an active biopolymer based on chitosan by incorporating natural *** essential oils(ginger,rosemary,sage,tea tree and thyme)and six hydro-alcoholic extracts(from ginger,green and black tea,kenaf leaves,rosemary and sage plants)were *** assays were carried out to evaluate the films’activity,and total phenolic content and antioxidant activity were monitored in the simulant during *** between natural compounds and polymeric matrix was evaluated by FTIR *** diffusion of the phenolic compounds was not detected in the films incorporated with hydro-alcoholic extracts(HAEs),indicating their entrapment in the *** was observed in the films with essential oils(EOs),and biobased films incorporated with ginger,sage or rosemary essential oils,presented the highest diffusion and antioxidant activity in the simulant,highlighting their functionality and potential to be used as food active packaging material.

关键词： Active packaging antioxidant activity biopolymers chitosan phenolic content

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Bioactive polysaccharides from medicinal mushrooms:A review on their isolation,structural characteristics and antitumor activity

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Food Bioscience 2022年第5期49卷 119-129页

作者： Juliana Garcia Francisca rodrigues maria Jos´e Saavedra Fernando M.nunes Guilhermina Marques CITAB-Centre for the Research and Technology of Agro-Environment and Biological Sciences University of Tr´as-os-Montes e Alto Douro5001-801Vila RealPortugal AquaValor-Centro de Valorizaç˜ao e Transferˆencia de Tecnologia da´Agua-Associaç˜ao Rua Dr.Júlio Martins n.◦15400-342ChavesPortugal REQUIMTE/LAQV-Polytechnic of Porto-School of Engineering Rua Dr.Ant´onio Bernardino de Almeida4314249-015PortoPortugal CQ-VR-Centro de Química-Vila Real Food and Wine Chemistry Lab.Chemistry DepartamentUniversity of Tr´as-os-Montes e Alto Douro5001-801Vila RealPortugal

Mushrooms either alone or in combination with conventional cancer treatment have been enhanced the efficacy of chemotherapy and radiotherapy improving the patients’quality of *** therapy effects have been attributed to polysaccharides;the most potent compounds found in the fungi *** to their wide range of biological activity and the backbone of glucose residues linked byβ-(1→3)-glycosidic bonds,often with attached side-chain glucose residues joined byβ-(1→6)linkages,the mushroom’s polysaccharides,particularly theβ-glucans,are the most versatile ***,D-fraction,and schizophyllan from Lentinula edodes,Grifola frondosa,and Schizophyllum commune,respectively are well-knownβ-glucans,however,the precise immunomodulation and anticancer mechanisms of action remain to be *** to several studies,β-glucan can interact with certain receptors on macrophages and dendritic cells,such as dectin-1 and TLRs,producing different cytokines and,in turn,indirectly activating other immune cells including T and B ***,recent findings have proved thatβ-glucans have a direct cytotoxic effect on cancer cells suppressing proliferation and enhancing apoptosis possibly via multiple pathways such as PI3K/Akt/mTOR,nF-κB-,ERK-,ERα-,caspase-and p53-dependent ***,this study intends to provide information on the lentinan,D-fraction,and schizophyllan by examining the extraction procedures,chemical composition,and immunostimulatory and antitumoral biological *** research directions should be directed toward improving the validity and reliability of randomized trials to confirm the potential role ofβ-glucans on the immune system and as anticancer therapy.

关键词： Lentinan D-fraction Schizophyllan Anticancer activity

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Chromium Adsorption in Different Mineralogical Fractions from Subtropical Soils

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Pedosphere 2017年第1期27卷 106-111页

作者： Jovana BAVARESCO Jesse R. FInK maria Lucia K. rodrigues Clesio GIAnELLO Vidal BARROn Jose TORREnT Department of Soils Federal University of Rio Grande do Sul 91540-000 Porto Alegre Rio Grande do Sul (Brazil) Laboratory of Soils Federal Institute of Parand 85555-000 Palmas Parand (Brazil) Department of Research and Laboratory Environmental Protection Foundation of Rio Grande do Sul State 90620-090 Porto AlegreRio Grande do Sul (Brazil) Department of Agronomy University of Cdrdoba C4 Building Campus of Rabanales 14071 C6rdoba (Spain)

Safe application of chromium （Cr）-containing organic industrial wastes to soil requires considering the ability of the soil to adsorb Cr. In this study, the maximum Cr adsorption capacity was assessed for the bulk samples and their clay and iron-free clay fractions of four subtropical soils differing in mineralogy. To this end, the samples were supplied with Cr（Ⅲ） nitrate solutions at pH 4.5 or 5.5. The results of Cr（Ⅲ） adsorption fitted to a Freundlich equation and the adsorption capacity was positively correlated with soil organic matter and iron oxide contents. The clay fractions adsorbed more Cr per unit mass than the bulk soils and the iron-free clay fractions. The Cr（Ⅲ） adsorption capacity increased with increasing soil pH due to more charges on adsorbing surfaces. Our results suggest that the soils rich in organic matter and iron oxides and having a pH above 4.5 are suitable for application of Cr（Ⅲ）-loaded industrial wastes.

关键词： adsorption capacity environmental contamination iron-free clay fractions iron oxides point of zero charge specificsurface area

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Dealing with Multisource Information for Estuarine Flood Risk Appraisal in Two Western European Coastal Areas

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International Journal of Disaster Risk Science 2022年第2期13卷 199-213页

作者： Ana rodrigues Rilo Alexandre Manuel de Oliveira Soares Tavares Paula maria dos Santos Freire José Luis Zêzere Estuarine and Coastal Zones Unit LNEC-National Civil Engineering Laboratory.1700-075 LisbonPortugal Centre of Geographical Studies Institute of Geography and Spatial PlanningUniversidade de Lisboa1700-066 LisbonPortugal Centre for Social Studies and Earth Sciences Department Coimbra University3030-790 CoimbraPortugal

Estuaries are usually affected by compound flooding triggers that cause diverse territorial *** fluvial flood risk assessment frameworks are well established in the literature,integrated management instruments that deal with estuarine flood risk remain incomplete and often *** research presents a methodology to extract relevant information from multiple sources post-event and a database building process that is applied to two contrasting estuaries(the Tagus River estuary in Portugal,and the Shannon River estuary in Ireland)in the Western European coastal ***,a total of 274 documents were analyzed and the information was stored in two *** correspondence analysis was applied to extract the most informative and relevant estuarine flood *** integrated estuarine flood risk assessment framework is presented and discussed based on the extracted *** framework is driven by two distinct dimensions(oceanic and hydrographic)and revealed the transversal position of triggers of estuarine floods,reflecting the compounding effects usually present in these *** results also highlight two levels of flood risk mostly based on damage typology.

关键词： Estuarine floods Estuarine flood indicators Multiple correspondence analysis Post-hazard multisource information Western Europe

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Guanidine derivative inhibits C. albicans biofilm growth on denture liner without promote loss of materials’ resistance

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Bioactive Materials 2020年第2期5卷 228-232页

作者： Isadora Martini Garcia Stéfani Becker rodrigues maria Eduarda rodrigues Gama Vicente Castelo Branco Leitune Mary Anne Melo Fabrício Mezzomo Collares Dental Materials Laboratory Postgraduate Program in DentistrySchool of DentistryFederal University of Rio Grande Do SulRua Ramiro Barcelos2492Rio Branco90035-003Porto AlegreRSBrazil Ph.D.Program in Biomedical Sciences University of Maryland School of DentistryBaltimoreMD21201USA Operative Dentistry Division General Dentistry Department University of Maryland School of DentistryBaltimoreMD21201USA

To reduce the burden of denture stomatitis and oral candidiasis,an aqueous solution containing polyhexamethylene guanidine hydrochloride(PHMGH)was investigated as an antifungal disinfectant against the leading cause of these oral conditions,Candida *** solutions formulated with concentrations ranging from 0.125 to 0.50 wt%enabled increasing disinfection at the initial 5min-contact with 72h-mature candida biofilms formed on denture liner *** 10 min-contact,the solution at lower concentration has reached total fungal *** results also indicated that the denture liners preserved their mechanical property after the maximum contact time with the solution at the highest tested *** PHMGH aqueous solutions at 0.125 wt%could be applied to promote interim denture liner disinfection without promoting the loss of materials’mechanical property.

关键词： Dental materials Guanidine Antifungal agents Candidiasis Denture liner

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