cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.5719459
title: Floristic inventory in a Seasonal Semideciduous Forest remnant in Southern Espírito Santo, Brazil: Parque Estadual da Cachoeira da Fumaça

description: Abstract This paper provides a floristic inventory of Angiosperms reported from Parque Estadual Cachoeira da Fumaça (PECF), Espírito Santo, Brazil. The PECF is located between Alegre and Ibitirama, region of Caparaó, South of Espírito Santo, protecting springs and remnants of a preserved section of the Braço Norte Direito river, affluent of the Itapemirim river. The objective of this work was to increase the knowledge of the angiosperm diversity of a remnant of the Atlantic Forest located in the south of Espírito Santo, through the field survey of herbaceous, climbing, shrub and tree species occurring in the PECF. The inventory was performed with fortnightly fieldwork from January 2010 to January 2011. The samples collected are available at the herbarium VIES (Alegre). A checklist with 222 species, from 171 genera and 60 families is provided, of this total, 30 species are endemic to Brazil, four are on the red list of endangered species, and 13 are cited as new occurrences for the Espírito Santo. Fabaceae, Asteraceae, Piperaceae, Rubiaceae, Euphorbiaceae, Poaceae, Melastomataceae and Myrtaceae presented the greatest species richness. The number of taxa found in the PECF reaffirms that small remnants of forest present a high diversity of species.
DOI: 10.6084/m9.figshare.5719459.v1
title: Floristic inventory in a Seasonal Semideciduous Forest remnant in Southern Espírito Santo, Brazil: Parque Estadual da Cachoeira da Fumaça

description: Abstract This paper provides a floristic inventory of Angiosperms reported from Parque Estadual Cachoeira da Fumaça (PECF), Espírito Santo, Brazil. The PECF is located between Alegre and Ibitirama, region of Caparaó, South of Espírito Santo, protecting springs and remnants of a preserved section of the Braço Norte Direito river, affluent of the Itapemirim river. The objective of this work was to increase the knowledge of the angiosperm diversity of a remnant of the Atlantic Forest located in the south of Espírito Santo, through the field survey of herbaceous, climbing, shrub and tree species occurring in the PECF. The inventory was performed with fortnightly fieldwork from January 2010 to January 2011. The samples collected are available at the herbarium VIES (Alegre). A checklist with 222 species, from 171 genera and 60 families is provided, of this total, 30 species are endemic to Brazil, four are on the red list of endangered species, and 13 are cited as new occurrences for the Espírito Santo. Fabaceae, Asteraceae, Piperaceae, Rubiaceae, Euphorbiaceae, Poaceae, Melastomataceae and Myrtaceae presented the greatest species richness. The number of taxa found in the PECF reaffirms that small remnants of forest present a high diversity of species.
DOI: 10.6084/m9.figshare.5719450
title: Relationship Between Meteorological Conditions and Beetles in Mata de Cocal

description: Abstract Study the meteorological factors is important to understand beetles population dynamics. So this study examined the relationship between meteorological conditions and the Coleptera population fluctuation in Mata de Cocal in Teresina-PI city from August 2011 to July 2012. Insects were collected weekly in 12 pitfall traps unattractive. It is confirmed canonical correlation between the monthly occurrence record in the families population fluctuation– Scarabaeidae, Carabidae, Tenebrionidae, Curculionidae, Bolboceratidae, Histeridae and Chrysomelidae– in the group of monthly data of insolation, pluviometric precipitation, relative humidity and temperature, with a magnitude of 0.99, chi-square equal to 66.62 with 28 degrees of freedom and p-value corresponding equal to &lt; 0.0001. Significantly (p &lt; 0.0001) there was positive canonical correlation between insolation data (0.81) and pluviometric precipitation (0.45), and negative for humidity (-0.75) and temperature (-0.21) in the monthly occurrence record of the group these families. In this way the population fluctuation and governed predominantly by regional variables and their presence is conditioned by meteorological parameters, principally insolation and humidity.
DOI: 10.6084/m9.figshare.5719450.v1
title: Relationship Between Meteorological Conditions and Beetles in Mata de Cocal

description: Abstract Study the meteorological factors is important to understand beetles population dynamics. So this study examined the relationship between meteorological conditions and the Coleptera population fluctuation in Mata de Cocal in Teresina-PI city from August 2011 to July 2012. Insects were collected weekly in 12 pitfall traps unattractive. It is confirmed canonical correlation between the monthly occurrence record in the families population fluctuation– Scarabaeidae, Carabidae, Tenebrionidae, Curculionidae, Bolboceratidae, Histeridae and Chrysomelidae– in the group of monthly data of insolation, pluviometric precipitation, relative humidity and temperature, with a magnitude of 0.99, chi-square equal to 66.62 with 28 degrees of freedom and p-value corresponding equal to &lt; 0.0001. Significantly (p &lt; 0.0001) there was positive canonical correlation between insolation data (0.81) and pluviometric precipitation (0.45), and negative for humidity (-0.75) and temperature (-0.21) in the monthly occurrence record of the group these families. In this way the population fluctuation and governed predominantly by regional variables and their presence is conditioned by meteorological parameters, principally insolation and humidity.
DOI: 10.6084/m9.figshare.5719447
title: MICRONUTRIENTS AND BIOMASS IN Eucalyptus dunnii Maiden STAND

description: ABSTRACT The expansion of silviculture in Brazil, and the consequent intensive practices for soil preparation with high demand for fertilizers require sustainable nutrient management of forest sites. The objective of this study was to quantify the biomass and the micronutrient stocks of a 60-month-old Eucalyptus dunnii stand established in Alegrete, Rio Grande do Sul. The stand was established in a Rhodic Paleudult soil with low fertility and texture varying between sandy loam and sandy-clay loam. For the sampling of stand biomass, twelve trees were harvested, sectioned at ground level, and subsequently fractionated into the components roots, leaves, branches, stembark and stemwood to determine the dry mass and micronutrient content. The total biomass of the stand was 67.49 Mg ha-1, with mass allocation in descending order from: stem wood &gt; root &gt; bark &gt; branches &gt; leaves. Total micronutrient stocks for boron (B), copper (Cu), iron (Fe), manganese (Mn) and zinc (Zn) were 562.57, 401.46, 9913.28, 31877.82, and 766.96 g ha-1, respectively. In addition, we found greater accumulation of Zn in the wood, high Mn accumulation especially in the bark, and high Fe content in the roots. Therefore, based on these micronutrient levels and their allocation between biomass fractions, we emphasize that the practice of retaining forest residues on-site after harvest is essential for forest nutrition through nutrient cycling and for soil conservation and fertility.
DOI: 10.6084/m9.figshare.5719447.v1
title: MICRONUTRIENTS AND BIOMASS IN Eucalyptus dunnii Maiden STAND

description: ABSTRACT The expansion of silviculture in Brazil, and the consequent intensive practices for soil preparation with high demand for fertilizers require sustainable nutrient management of forest sites. The objective of this study was to quantify the biomass and the micronutrient stocks of a 60-month-old Eucalyptus dunnii stand established in Alegrete, Rio Grande do Sul. The stand was established in a Rhodic Paleudult soil with low fertility and texture varying between sandy loam and sandy-clay loam. For the sampling of stand biomass, twelve trees were harvested, sectioned at ground level, and subsequently fractionated into the components roots, leaves, branches, stembark and stemwood to determine the dry mass and micronutrient content. The total biomass of the stand was 67.49 Mg ha-1, with mass allocation in descending order from: stem wood &gt; root &gt; bark &gt; branches &gt; leaves. Total micronutrient stocks for boron (B), copper (Cu), iron (Fe), manganese (Mn) and zinc (Zn) were 562.57, 401.46, 9913.28, 31877.82, and 766.96 g ha-1, respectively. In addition, we found greater accumulation of Zn in the wood, high Mn accumulation especially in the bark, and high Fe content in the roots. Therefore, based on these micronutrient levels and their allocation between biomass fractions, we emphasize that the practice of retaining forest residues on-site after harvest is essential for forest nutrition through nutrient cycling and for soil conservation and fertility.
DOI: 10.6084/m9.figshare.5719444
title: The expression of endothelial and inducible nitric oxide synthase and apoptosis in intestinal ischemia and reperfusion injury under the action of ischemic preconditioning and pentoxifylline

description: Abstract Purpose: To investigate the expression of nitric oxide synthase (NOS) and apoptosis associated with ischemic preconditioning (IPC) and pentoxifylline (PTX) in intestinal ischemia (I) and reperfusion (R) injury. Methods: Thirty male rats were assigned to 5 groups: (CG), no clamping of the superior mesenteric artery (90 minutes); (IR-SS) saline + ischemia (30 minutes) + reperfusion (60 minutes); (IR-PTX) PTX + ischemia (30 minutes) + reperfusion (60 minutes); (IPC-IR-SS) 5 minutes of ischemia + 5 minutes of reperfusion (IPC) + saline + I(30 minutes)+R(60 minutes); and (IPC-IR-PTX) IPC + PTX + I(30 minutes)+ R(60 minutes). Results: The application of IPC and PTX showed a significantly lower immunohistochemistry reaction for active caspase-3 (P&lt;0.05) compared to IR+SS. The number of cells immunoreactive to BCL-2 was higher in the IR-PTX group (P&gt;0.05). The NOS-2 expression (qRTPCR) in the IR-PTX group (P&lt;0.05) was higher than the values for the IPC+IR-SS and IPC-IR-PTX groups. The NOS-3 expression was significantly upper in the IPC-IR-PTX group than in the CG (P&lt;0.05), the IR-SS (P&lt;0.05) and the IR-PTX (P&lt;0.05) groups. Conclusions: The BCL-2 and active caspase-3 showed beneficial effects on PTX and IPC. The expression of NOS-2 and NOS-3 in the IPC and IPC-PTX groups showed no synergistic effect.
DOI: 10.6084/m9.figshare.5719444.v1
title: The expression of endothelial and inducible nitric oxide synthase and apoptosis in intestinal ischemia and reperfusion injury under the action of ischemic preconditioning and pentoxifylline

description: Abstract Purpose: To investigate the expression of nitric oxide synthase (NOS) and apoptosis associated with ischemic preconditioning (IPC) and pentoxifylline (PTX) in intestinal ischemia (I) and reperfusion (R) injury. Methods: Thirty male rats were assigned to 5 groups: (CG), no clamping of the superior mesenteric artery (90 minutes); (IR-SS) saline + ischemia (30 minutes) + reperfusion (60 minutes); (IR-PTX) PTX + ischemia (30 minutes) + reperfusion (60 minutes); (IPC-IR-SS) 5 minutes of ischemia + 5 minutes of reperfusion (IPC) + saline + I(30 minutes)+R(60 minutes); and (IPC-IR-PTX) IPC + PTX + I(30 minutes)+ R(60 minutes). Results: The application of IPC and PTX showed a significantly lower immunohistochemistry reaction for active caspase-3 (P&lt;0.05) compared to IR+SS. The number of cells immunoreactive to BCL-2 was higher in the IR-PTX group (P&gt;0.05). The NOS-2 expression (qRTPCR) in the IR-PTX group (P&lt;0.05) was higher than the values for the IPC+IR-SS and IPC-IR-PTX groups. The NOS-3 expression was significantly upper in the IPC-IR-PTX group than in the CG (P&lt;0.05), the IR-SS (P&lt;0.05) and the IR-PTX (P&lt;0.05) groups. Conclusions: The BCL-2 and active caspase-3 showed beneficial effects on PTX and IPC. The expression of NOS-2 and NOS-3 in the IPC and IPC-PTX groups showed no synergistic effect.
DOI: 10.6084/m9.figshare.5719441
title: Africanity and diversity in the teaching of History: between knowledge and practice

description: ABSTRACT This article aims to discuss the use of Africanity in school education. In particular the use of deities representations, which are worshiped in the state of Rio Grande do Sul, and its possible functional similarity in the teaching practice with the Greek myths. Another objective of the narrative is to demonstrate the challenges for teaching diversity and ethnic-racial relations in Brazil as well as to evaluate a lesson plan of the History discipline held in a public high school in the city of Porto Alegre, the capital city of the State. In order to interpret the results of the lesson proposal, the reports produced by the students themselves were analyzed. By means of the method of content analysis proposed by Bardin (2009) in its qualitative aspects, having as documentary corpus the students’ records, we observed the interest and the motivation on the part of the students of the seven classes involved in the activity.
DOI: 10.6084/m9.figshare.5719441.v1
title: Africanity and diversity in the teaching of History: between knowledge and practice

description: ABSTRACT This article aims to discuss the use of Africanity in school education. In particular the use of deities representations, which are worshiped in the state of Rio Grande do Sul, and its possible functional similarity in the teaching practice with the Greek myths. Another objective of the narrative is to demonstrate the challenges for teaching diversity and ethnic-racial relations in Brazil as well as to evaluate a lesson plan of the History discipline held in a public high school in the city of Porto Alegre, the capital city of the State. In order to interpret the results of the lesson proposal, the reports produced by the students themselves were analyzed. By means of the method of content analysis proposed by Bardin (2009) in its qualitative aspects, having as documentary corpus the students’ records, we observed the interest and the motivation on the part of the students of the seven classes involved in the activity.
DOI: 10.6084/m9.figshare.5719438
title: Energy potential of residual maize biomass at different spacings and nitrogen doses

description: ABSTRACT Agricultural residual biomass is an important source of energy, and its production and quality vary according to the crop management. This study aimed to assess the effects of plant distribution and nitrogen fertilization on the energy production potential of the biomass of maize cultivated under no tillage. The field experiment was installed in southeast Brazil using five nitrogen rates (0, 60, 120, 180, and 240 kg ha-1) and two inter-row spacings (0.4 and 0.8 m). Grain yield, residual biomass productivity, and bioenergy potential in different parts of the plant (grain, stalk+leaf, husk, and cob) were assessed. No change in grain yield was observed using narrow row spacing. Stalk+leaf and husk productivity was higher using 0.8 m than using 0.4 m of inter-row spacing. Nitrogen application resulted in increased grain yield and biomass productivity. Nitrogen influences the bioenergy potential by increasing the biomass and calorific value. Application of the maximum nitrogen fertilization rate is recommended for grain yield considering the use of only the husk and cob can generate 2712 kWh ha-1 of bioenergy.
DOI: 10.6084/m9.figshare.5719438.v1
title: Energy potential of residual maize biomass at different spacings and nitrogen doses

description: ABSTRACT Agricultural residual biomass is an important source of energy, and its production and quality vary according to the crop management. This study aimed to assess the effects of plant distribution and nitrogen fertilization on the energy production potential of the biomass of maize cultivated under no tillage. The field experiment was installed in southeast Brazil using five nitrogen rates (0, 60, 120, 180, and 240 kg ha-1) and two inter-row spacings (0.4 and 0.8 m). Grain yield, residual biomass productivity, and bioenergy potential in different parts of the plant (grain, stalk+leaf, husk, and cob) were assessed. No change in grain yield was observed using narrow row spacing. Stalk+leaf and husk productivity was higher using 0.8 m than using 0.4 m of inter-row spacing. Nitrogen application resulted in increased grain yield and biomass productivity. Nitrogen influences the bioenergy potential by increasing the biomass and calorific value. Application of the maximum nitrogen fertilization rate is recommended for grain yield considering the use of only the husk and cob can generate 2712 kWh ha-1 of bioenergy.
DOI: 10.6084/m9.figshare.5719435
title: Isothermal Crystallization Kinetics of Poly(lactic acid) Stereocomplex/Graphene Nanocomposites

description: The isothermal crystallization kinetics of PLA stereocomplex (scPLA) and scPLA/graphene oxide nanocomposites was investigated. scPLA was prepared by symmetric blending the two isomers, PLLA and PDLA and the scPLA nanocomposite by polymerization of the respective lactides in presence of commercial graphene oxide nanoplatelets (GNPO+) followed of blending the two composites. The effect of the filler on the crystallization behavior and thermal properties of scPLA was investigated by using differential scanning calorimetry (DSC). Avrami equation was used to describe the isothermal crystallization kinetics and melting behavior. Addition of 0.5 wt% GNPO+ to PLA matrix increases the crystallization rate, lowering the half-time of crystallization t1/2 to around 5.5 min for scPLA nanocomposites, which is about 2.7 min below that found for scPLA when isothermally crystallized at 165ºC. During the isothermal crystallization, homochiral and stereocomplex crystals are formed, depending on the crystallization temperature. As crystallization temperature reaches 160 and 165ºC, the crystallization of homocrystals become prevented and only stereocomplex crystals are formed.
DOI: 10.6084/m9.figshare.5719435.v1
title: Isothermal Crystallization Kinetics of Poly(lactic acid) Stereocomplex/Graphene Nanocomposites

description: The isothermal crystallization kinetics of PLA stereocomplex (scPLA) and scPLA/graphene oxide nanocomposites was investigated. scPLA was prepared by symmetric blending the two isomers, PLLA and PDLA and the scPLA nanocomposite by polymerization of the respective lactides in presence of commercial graphene oxide nanoplatelets (GNPO+) followed of blending the two composites. The effect of the filler on the crystallization behavior and thermal properties of scPLA was investigated by using differential scanning calorimetry (DSC). Avrami equation was used to describe the isothermal crystallization kinetics and melting behavior. Addition of 0.5 wt% GNPO+ to PLA matrix increases the crystallization rate, lowering the half-time of crystallization t1/2 to around 5.5 min for scPLA nanocomposites, which is about 2.7 min below that found for scPLA when isothermally crystallized at 165ºC. During the isothermal crystallization, homochiral and stereocomplex crystals are formed, depending on the crystallization temperature. As crystallization temperature reaches 160 and 165ºC, the crystallization of homocrystals become prevented and only stereocomplex crystals are formed.
DOI: 10.6084/m9.figshare.5719432
title: Studies on spelling in the context of dyslexia: a literature review

description: ABSTRACT This paper aimed at reviewing the literature related to national and international research on spelling difficulties by dyslexics and identifying the intervention approaches performed with regard to this topic. An integrative review of the literature was carried out in order to answer the question: considering the domain of the orthography, one of the challenges frequently faced by dyslexics, how are studies on the relationship between dyslexia and spelling characterized? The research was carried out in PubMed platform, Scopus database and Portal de Periódicos CAPES/MEC. To search the articles, the following descriptors were used: "dislexia" or "dyslexia" with the free terms "ortografia" or "spelling". One aspect should be highlighted: some works indicate that difficulties in the spelling performance by dyslexics are not exclusively due to phonological processing failures - they are also secondary to alterations in orthographic processing. A challenge faced by dyslexics is to retain phonological information to use in writing new orthographic forms. Researchers suggest that intervention strategies include phonological, orthographic and lexical activities. It is observed that few studies have analyzed the difficulties that dyslexics face when dealing with new words, as well as writing, correctly, frequently used words in their own language.
DOI: 10.6084/m9.figshare.5719432.v1
title: Studies on spelling in the context of dyslexia: a literature review

description: ABSTRACT This paper aimed at reviewing the literature related to national and international research on spelling difficulties by dyslexics and identifying the intervention approaches performed with regard to this topic. An integrative review of the literature was carried out in order to answer the question: considering the domain of the orthography, one of the challenges frequently faced by dyslexics, how are studies on the relationship between dyslexia and spelling characterized? The research was carried out in PubMed platform, Scopus database and Portal de Periódicos CAPES/MEC. To search the articles, the following descriptors were used: "dislexia" or "dyslexia" with the free terms "ortografia" or "spelling". One aspect should be highlighted: some works indicate that difficulties in the spelling performance by dyslexics are not exclusively due to phonological processing failures - they are also secondary to alterations in orthographic processing. A challenge faced by dyslexics is to retain phonological information to use in writing new orthographic forms. Researchers suggest that intervention strategies include phonological, orthographic and lexical activities. It is observed that few studies have analyzed the difficulties that dyslexics face when dealing with new words, as well as writing, correctly, frequently used words in their own language.
DOI: 10.6084/m9.figshare.5719429
title: Production of TiO2 Coated Multiwall Carbon Nanotubes by the Sol-Gel Technique

description: In recent years, efforts in developing high strength-low density materials are increasing significantly. One of the promising materials to attend this demand is the carbon nanotube (CNT), to be used mainly as a reinforcing phase in lightweight metal matrix composites (MMC). In the present work, the sol-gel technique has been employed to obtain TiO2 coating on the surface of commercial multiwall carbon nanotubes (MWCNT). The aim of such coating is to improve the thermal stability of MWCNT in oxidize environment, which is necessary in most of MMC processing routes. Calcination in inert atmosphere was performed in order to crystallize a stable coating phase. The hybrid CNT/TiO2 nanocomposite was characterized by X-Ray Diffractometry (XRD), Raman spectroscopy, Thermogravimetry (TGA) and Field Emission Gun - Scanning Electron Microscopy (FEG-SEM). The coating structure was observed to change from anatase to rutile, as the calcination temperature increases from 500 to 1000°C. Results from thermogravimetric analysis showed that the samples calcined at 1000 ºC were more resistant to oxidation at high temperatures.