cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.14279095
title: PATENTOMETRY: AN INDISPENSABLE TOOL IN THE STUDY OF THE DEVELOPMENT OF TECHNOLOGIES FOR THE CHEMICAL INDUSTRY

description: This work describes a methodology to carry out the analysis of technological sectors, using information contained in patent documents. The use of this information by professors and students of chemistry courses and related areas is still little used. The consequence of this is the repetition of efforts to obtain some results of research and development. The use of patent big data and the construction of scenarios, using several variables, is even rarer in Brazil and still little explored in the world. This work presents patentometry in a theoretical context and its practical application, taking as an example the area of rare earth in Brazil. Analyses will be presented in this work, such as the development of technologies over time and study of the maturity of the sector in question; potential markets; the most significant technology developers in the field; technological sectors related to rare earth in Brazil; attractiveness of the Brazilian market; the evolution of priority sectors; technological specialization; patent quality indices and innovation indices; indexes of technologies internationalization and cooperation. It is expected that with the Patentometry, some of the barriers of insertion in the market of new technologies will be better known and minimized.
DOI: 10.6084/m9.figshare.14279095.v1
title: PATENTOMETRY: AN INDISPENSABLE TOOL IN THE STUDY OF THE DEVELOPMENT OF TECHNOLOGIES FOR THE CHEMICAL INDUSTRY

description: This work describes a methodology to carry out the analysis of technological sectors, using information contained in patent documents. The use of this information by professors and students of chemistry courses and related areas is still little used. The consequence of this is the repetition of efforts to obtain some results of research and development. The use of patent big data and the construction of scenarios, using several variables, is even rarer in Brazil and still little explored in the world. This work presents patentometry in a theoretical context and its practical application, taking as an example the area of rare earth in Brazil. Analyses will be presented in this work, such as the development of technologies over time and study of the maturity of the sector in question; potential markets; the most significant technology developers in the field; technological sectors related to rare earth in Brazil; attractiveness of the Brazilian market; the evolution of priority sectors; technological specialization; patent quality indices and innovation indices; indexes of technologies internationalization and cooperation. It is expected that with the Patentometry, some of the barriers of insertion in the market of new technologies will be better known and minimized.
DOI: 10.6084/m9.figshare.14279097
title: GREEN CHEMISTRY TEACHING FOR SUSTAINABILITY IN PAPERS PUBLISHED BY THE JOURNAL OF CHEMICAL EDUCATION

description: This paper discusses 286 proposals and reports of Green Chemistry (GC) teaching experiences, in papers of the Journal of Chemical Education (JCEd) until 2019. The analysis was based on previous categories: source-problem, paper focus, subjects/area of knowledge, target groups, GC contents, type of approach and purpose(s) of the proposal. A list of possible characteristics of each category served as an example to compare with the information resulting from the analyses, and thus improve the discussions. In 127 papers, GC and its teaching were associated, albeit generally, with the theme of sustainability/sustainable development, which points to its potential to face environment-related aspects of chemistry in teaching. A systemic vision in the interconnection between GC and sustainability/sustainable development appeared more explicitly in 39 papers up to 2019. So far, the analysis highlights a certain reproduction of traditional chemistry teaching, and little evidence of the particularities of GC teaching. Despite the intention of inserting GC into chemistry teaching, proposals for its incorporation are often made superficially, more as an addendum or an extra quality than a specific goal. More methodological detail of the experiments carried out is needed to help in the dissemination of GC in the training curriculum of chemists. The discussions and reports on teaching approaches based on Systems Thinking showed the opening of a promising new methodological challenge within this theoretical paradigm.
DOI: 10.6084/m9.figshare.14279097.v1
title: GREEN CHEMISTRY TEACHING FOR SUSTAINABILITY IN PAPERS PUBLISHED BY THE JOURNAL OF CHEMICAL EDUCATION

description: This paper discusses 286 proposals and reports of Green Chemistry (GC) teaching experiences, in papers of the Journal of Chemical Education (JCEd) until 2019. The analysis was based on previous categories: source-problem, paper focus, subjects/area of knowledge, target groups, GC contents, type of approach and purpose(s) of the proposal. A list of possible characteristics of each category served as an example to compare with the information resulting from the analyses, and thus improve the discussions. In 127 papers, GC and its teaching were associated, albeit generally, with the theme of sustainability/sustainable development, which points to its potential to face environment-related aspects of chemistry in teaching. A systemic vision in the interconnection between GC and sustainability/sustainable development appeared more explicitly in 39 papers up to 2019. So far, the analysis highlights a certain reproduction of traditional chemistry teaching, and little evidence of the particularities of GC teaching. Despite the intention of inserting GC into chemistry teaching, proposals for its incorporation are often made superficially, more as an addendum or an extra quality than a specific goal. More methodological detail of the experiments carried out is needed to help in the dissemination of GC in the training curriculum of chemists. The discussions and reports on teaching approaches based on Systems Thinking showed the opening of a promising new methodological challenge within this theoretical paradigm.
DOI: 10.6084/m9.figshare.14279094.v1
title: MOLECULARLY IMPRINTED POLYMER FOR THIACLOPRID: A THEORETICAL INVESTIGATION

description: Thiacloprid (TCP) is a synthetic insecticide, belonging to the class of neonicotinoids (NNCs), which present potential damages to the environment, biodiversity and human health, being necessary its constant monitoring. In this sense, molecularly imprinted polymers (MIPs) have been shown as an excellent alternative for the separation science, since they can recognize molecularly and selectively the analyte in various types of complex sample, such as food, soil, etc., thus contributing to its efficient extraction. In the present work, we have investigated, through DFT calculations, the mechanism of formation of a MIP for the TCP. As main result we obtained the following theoretical protocol for the MIP synthesis: 2-(trifluoromethyl) aryl acid (TFMAA) as FM (functional monomers), in 1:3 stoichiometry, and toluene as the solvent. This theoretical protocol showed the most favorable stabilization energies for the pre-polymerization complexes formed. In addition, it has been shown that the establishment of hydrogen bonds between the TCP and FM play a fundamental role in the stability of the complexes formed. We consider this work quite relevant since it can be used by experimentalists in order to reach an efficient MIP synthesis for TCP.
DOI: 10.6084/m9.figshare.14279099
title: POLYMERIC BIONANOCOMPOSITES BASED ON MONTMORILLONITE – MATERIALS IN CONTINUOUS INTEREST

description: Polymeric bionanocomposites are versatile materials that have many practical applications. The wide use of these materials is mainly due to their structure and properties, which combine at nanometric scale, the functionality of biopolymers with the excellent stability of inorganic solids, such as the clay minerals family. Montmorillonite is the most widely employed clay mineral in the development of polymeric bionanocomposites. The resulting materials from the combination of biopolymers and montmorillonite clay can form different structures (layered, delaminated, and exfoliated phases) and morphologies (powder, films or beads), exhibiting new features and better chemical, mechanical, thermal, and gas barrier properties compared to the pristine matrices, owing to the synergistic effect between both organic and inorganic moieties. In this sense, this review addresses polymeric bionanocomposites originating from the interaction between montmorillonite and chitosan and cellulose biopolymers. The synthesis, characteristics, and main applications of polymeric bionanocomposites have been reported, and in some cases, the relationship between the formed structures and final properties of bionanocomposites is also highlighted.
DOI: 10.6084/m9.figshare.14279099.v1
title: POLYMERIC BIONANOCOMPOSITES BASED ON MONTMORILLONITE – MATERIALS IN CONTINUOUS INTEREST

description: Polymeric bionanocomposites are versatile materials that have many practical applications. The wide use of these materials is mainly due to their structure and properties, which combine at nanometric scale, the functionality of biopolymers with the excellent stability of inorganic solids, such as the clay minerals family. Montmorillonite is the most widely employed clay mineral in the development of polymeric bionanocomposites. The resulting materials from the combination of biopolymers and montmorillonite clay can form different structures (layered, delaminated, and exfoliated phases) and morphologies (powder, films or beads), exhibiting new features and better chemical, mechanical, thermal, and gas barrier properties compared to the pristine matrices, owing to the synergistic effect between both organic and inorganic moieties. In this sense, this review addresses polymeric bionanocomposites originating from the interaction between montmorillonite and chitosan and cellulose biopolymers. The synthesis, characteristics, and main applications of polymeric bionanocomposites have been reported, and in some cases, the relationship between the formed structures and final properties of bionanocomposites is also highlighted.
DOI: 10.6084/m9.figshare.14279102
title: PLASMONIC NANOMATERIALS: PART I. FUNDAMENTALS OF NANOPARTICLE SPECTROSCOPY AND ITS RELATION WITH THE SERS EFFECT

description: We perform an analysis of plasmonic nanomaterials in a two part review, the first of which constitutes the present work. Here, attention is given to the fundamentals of metal nanoparticle optical properties. It is discussed the principles regarding the excitation of localized surface plasmon modes in nanostructures of different sizes, shapes and surrounding media. The discussion is used as basis for the analysis of local properties derived from such excitations, which are used for the introduction of surface-enhanced Raman scattering (SERS). Throughout the review, the fundamentals of plasmonic excitations and their mechanisms of relaxation are used to introduce chemical applications of metal nanoparticles in different areas such as the construction of analytical chemistry sensor devices, enhanced molecular spectroscopy and plasmon-mediated chemical reactions (also referred to as plasmonic photocatalysis).
DOI: 10.6084/m9.figshare.14279102.v1
title: PLASMONIC NANOMATERIALS: PART I. FUNDAMENTALS OF NANOPARTICLE SPECTROSCOPY AND ITS RELATION WITH THE SERS EFFECT

description: We perform an analysis of plasmonic nanomaterials in a two part review, the first of which constitutes the present work. Here, attention is given to the fundamentals of metal nanoparticle optical properties. It is discussed the principles regarding the excitation of localized surface plasmon modes in nanostructures of different sizes, shapes and surrounding media. The discussion is used as basis for the analysis of local properties derived from such excitations, which are used for the introduction of surface-enhanced Raman scattering (SERS). Throughout the review, the fundamentals of plasmonic excitations and their mechanisms of relaxation are used to introduce chemical applications of metal nanoparticles in different areas such as the construction of analytical chemistry sensor devices, enhanced molecular spectroscopy and plasmon-mediated chemical reactions (also referred to as plasmonic photocatalysis).
DOI: 10.6084/m9.figshare.14279105
title: EMPLOYMENT OF BIOMASS IN UNDERGRADUATE ORGANIC CHEMISTRY EXPERIMENTAL CLASSES: EXTRACTION OF FLAVONOIDS FROM CITRUS FRUIT PEEL WASTE

description: This work describes the importance of using renewable sources in experimental classes for undergraduate students, as well as to spread the ideas of using biomass wastes as a source of products of interest. Therefore, in the proposed experiment, citrus fruit peel waste was employed to obtain pure flavonoids by extraction and recristalization. These procedures are important to reveal to students how bioactive products can be easily obtained from natural sources. In this way, naringin and hesperidin could be efficiently extracted from grapefruit (Citrus x. paradisi L.) and common orange (Citrus sinensis L. osbeck) peel wastes, respectively, using simple alcohols as solvents.
DOI: 10.6084/m9.figshare.14279105.v1
title: EMPLOYMENT OF BIOMASS IN UNDERGRADUATE ORGANIC CHEMISTRY EXPERIMENTAL CLASSES: EXTRACTION OF FLAVONOIDS FROM CITRUS FRUIT PEEL WASTE

description: This work describes the importance of using renewable sources in experimental classes for undergraduate students, as well as to spread the ideas of using biomass wastes as a source of products of interest. Therefore, in the proposed experiment, citrus fruit peel waste was employed to obtain pure flavonoids by extraction and recristalization. These procedures are important to reveal to students how bioactive products can be easily obtained from natural sources. In this way, naringin and hesperidin could be efficiently extracted from grapefruit (Citrus x. paradisi L.) and common orange (Citrus sinensis L. osbeck) peel wastes, respectively, using simple alcohols as solvents.
DOI: 10.6084/m9.figshare.14279138
title: Relationship between resistance of tropical maize inbred lines for resistance to ear rot and fumonisins accumulation caused by Fusarium verticillioides

description: Maize infection by Fusarium verticillioides, the causal agent of Fusarium ear rot, can result in the production of mycotoxins of the fumonisin group. Genetic resistance is the most effective way to control this disease. Thus, the aim of this study was to evaluate tropical maize inbred lines as potential sources of resistance to F. verticillioides and production of fumonisins. Six maize inbred lines, three previously classified as resistant and three as susceptible to F. verticillioides, were inoculated with the pathogen and subsequently evaluated for ear rot severity, incidence of symptomatic grain and fumonisin concentration. Results showed that the lines R1 and R3 exhibited high resistance to the pathogen infection. However, only R3 was resistant to the accumulation of fumonisins. Therefore, it is suggested that absence of relationship between disease intensity and fumonisin production is inherent to this pathosystem. Thus, asymptomatic grains infected by F. verticillioides cannot be ensured to be free of contamination by fumonisins.
DOI: 10.6084/m9.figshare.14279138.v1
title: Relationship between resistance of tropical maize inbred lines for resistance to ear rot and fumonisins accumulation caused by Fusarium verticillioides

description: Maize infection by Fusarium verticillioides, the causal agent of Fusarium ear rot, can result in the production of mycotoxins of the fumonisin group. Genetic resistance is the most effective way to control this disease. Thus, the aim of this study was to evaluate tropical maize inbred lines as potential sources of resistance to F. verticillioides and production of fumonisins. Six maize inbred lines, three previously classified as resistant and three as susceptible to F. verticillioides, were inoculated with the pathogen and subsequently evaluated for ear rot severity, incidence of symptomatic grain and fumonisin concentration. Results showed that the lines R1 and R3 exhibited high resistance to the pathogen infection. However, only R3 was resistant to the accumulation of fumonisins. Therefore, it is suggested that absence of relationship between disease intensity and fumonisin production is inherent to this pathosystem. Thus, asymptomatic grains infected by F. verticillioides cannot be ensured to be free of contamination by fumonisins.
DOI: 10.6084/m9.figshare.14279140
title: Longevity of Sclerotinia sclerotiorum sclerotia on the soil surface under field conditions

description: ABSTRACT The longevity of Sclerotinia sclerotiorum sclerotia was quantified in an experiment carried out in the field. Sclerotia naturally formed in soybean plants in an infested commercial field were collected in a grain-cleaning machine and those present in the stem pith, with c.a. 8 mm in length and 1.9 mm in diameter were selected. Fifty sclerotia were kept inside a white nylon mesh (0.25mm) screen bag (25 x 25cm). Eighty bags were laid on the soil surface-simulating no till farming. At monthly intervals, four bags were taken and brought to the laboratory. Sclerotia were washed with tap water and surface desinfested with sodium hypochlorite and exposed to germinate on sterilized moist river sand in a growth chamber at 15oC and 12h photoperiod. After 12 months, sclerotia kept on the soil surface, lost their viability. It may be concluded that under no till, crop rotation with nonsusceptible crops, can reduce the sclerotia bank in the soil.
DOI: 10.6084/m9.figshare.14279146
title: Reduction in gray mold severity in Eucalyptus benthamii seedlings treated with Trichoderma atroviride

description: ABSTRACT Gray mold, caused by Botrytis cinerea, is responsible for mortality of Eucalyptus benthamii seedlings. Biological control is an alternative due to the lack of products registered for eucalyptus in Brazil. This study evaluated the endophytic fungus Trichoderma atroviride, isolated from eucalypt, for controlling B. cinerea. The assay consisted in the application of a spore suspension of T. atroviride on E. benthamii seedlings at 24, 48 or 72 h before B. cinerea inoculation. Iprodione was used as positive control. Inoculated seedlings were maintained in a greenhouse for 21 days. Severity was evaluated based on a scale of symptoms from 0 (no lesions) to 4 (high severity). Trichoderma atroviride significantly reduced the disease severity, independent of the time of previous pulverization, similarly to the fungicide.
DOI: 10.6084/m9.figshare.14279144
title: Double haploid technology to determine the inheritance of resistance to stalk rot (Fusarium verticilioides) in corn inbred lines

description: ABSTRACT Were used in the study four populations synthesized by crossing two contrasting inbred lines as resistance to F.verticilioides. To obtain haploid inbred lines of these populations were crossed with haploid inducer, the haploid lines were then duplicated and selfed, and the seeds harvested were the of origin of the inbred lines used in the study. Seventy days after sowing the inbred lines were inoculated with a suspension of spores of the pathogen in F.verticilioides concentration of 2 106 spores and 70 days after inoculation the ears were harvested and weighed and stalks were collected, weighed and measured in length and diameter and longitudinally sectioned for evaluation of symptoms, which were also the lengths of the lesions measured. They were estimated to phenotypic, environmental variances, full genotypic and between and within families, as well as heritability and additive variance and dominance. The variance due to dominant genetic effects was greatest magnitude, and the heritability in the narrow sense was 0.28. The observed frequency distribution may indicate epistatic effects involved in the genetic control of resistance to F.verticilioides. The biggest gains expected with the selection were achieved with the use of selection among families and mass selection.
DOI: 10.6084/m9.figshare.14279144.v1
title: Double haploid technology to determine the inheritance of resistance to stalk rot (Fusarium verticilioides) in corn inbred lines

description: ABSTRACT Were used in the study four populations synthesized by crossing two contrasting inbred lines as resistance to F.verticilioides. To obtain haploid inbred lines of these populations were crossed with haploid inducer, the haploid lines were then duplicated and selfed, and the seeds harvested were the of origin of the inbred lines used in the study. Seventy days after sowing the inbred lines were inoculated with a suspension of spores of the pathogen in F.verticilioides concentration of 2 106 spores and 70 days after inoculation the ears were harvested and weighed and stalks were collected, weighed and measured in length and diameter and longitudinally sectioned for evaluation of symptoms, which were also the lengths of the lesions measured. They were estimated to phenotypic, environmental variances, full genotypic and between and within families, as well as heritability and additive variance and dominance. The variance due to dominant genetic effects was greatest magnitude, and the heritability in the narrow sense was 0.28. The observed frequency distribution may indicate epistatic effects involved in the genetic control of resistance to F.verticilioides. The biggest gains expected with the selection were achieved with the use of selection among families and mass selection.
DOI: 10.6084/m9.figshare.14279145
title: Survey of races of the causal agent of downy mildew of lettuce in the state of São Paulo in 2012 and 2013

description: ABSTRACT Lettuce is, among leafy vegetables, the most economically important one to Brazil. In the winter, at low temperatures and under leaf wetness, downy mildew of lettuce, a disease caused by the etiologic agent Bremia lactucae, occurs in almost all regions where this vegetable is grown and is considered one of the most severe foliar diseases for the culture. The aim of this study was to identify the races of B. lactucae in 2012 and 2013 that occurred in the main producing regions of São Paulo State, such as: Ribeirão Preto, Jaboticabal, Pirangi, Catanduva, São José do Rio Preto, Atibaia, Salesópolis, Biritiba Mirim, Mogi das Cruzes, Campinas, Itapira, Mogi Mirim, Cândido Mota, Presidente Prudente, Echaporã, Assis, Marilia, Botucatu and Bauru. During the months of July / August 2012 and 2013, we collected samples of lettuce leaves showing symptoms of downy mildew, and in each collected sample the pathogen structures referred to an isolate. The sporangia were multiplied on the susceptible cultivar Solaris, with subsequent inoculation in differential cultivars, performing evaluations on the 12th day from the appearance of the first sporulation in the susceptible cultivar ‘Green Tower’ (Dm-0), according to the code “Sextet”. In 2012, two new codes were determined, identifying two new races, SPBl:10 (63/31/02/00) and SPBl:11 (63/63/18/00). In 2013, a new codification was determined (63/31/18/00), to which the name SPBl:12 was proposed. The genes Dm-14 and Dm-15 and the resistance factors FR-17, FR-18, FR-36, FR-37 and FR-38 confer resistance to these new races that were identified. It is recommended, therefore, in breeding programs of lettuce, the use of factors FR-17, FR-18 and FR-38 as sources of resistance for new cultivars developed in the state of São Paulo, because they confer resistance to all 12 already identified races.