cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.10026308.v1
title: Facile One-Step Electrodeposition Fabrication of Amorphous MoS2 Catalysts in Titanium for Hydrogen Evolution Reaction

description: Hydrogen is seen as a future energy carrier that will assist the global energy fuel demand. However, it is still necessary to study efficient and inexpensive catalysts that can be used on a large scale to make this technology practical. In this paper the electrodeposition of molybdenum disulfide (MoS2) film on titanium (Ti) substrate was performed by cyclic voltammetry and the film was evaluated for hydrogen evolution reaction (HER). The deposition optimized conditions was 25 cycles and 4 mmol L-1 (NH4)2[MoS4] in 0.1 mol L-1 NaClO4 solution. The film was characterized from X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and they showed an amorphous structure and high catalytic activity for HER. The Tafel slope was 85 mV dec-1 and overpotential at -10 mA cm-2 was -139 mV showing that Ti substrate compared with fluorine-tin doped oxide (FTO) substrate favored the HER and electroactivity of MoS2 films.
DOI: 10.6084/m9.figshare.10026296
title: POLITICS AND EMPTY SIGNIFIERS: AN ANALYSIS OF THE SECONDARY EDUCATION REFORM OF 2017

description: ABSTRACT: The article analyzes the Secondary Education Reform (Law 13.145/17) and Bill 6840/13, addressing the differences and similarities between them and the different political contexts in which they emerged. We seek to understand the Reform as part of a broader movement of “educational reformism” in light of the concepts of Laclau and Mouffe’s political theory. The Secondary Education Reform became a hegemonic discourse before the Temer government, aiming to fill an empty signifier: the crisis of high school. With the emergence of the institutional coup in 2016 there was a rupture, allowing a heterogeneous range of left political groups, positioned in different fields, to unite against a new common enemy: the coup government. In this new framework, a more cohesive and unified opposition bloc was constituted with regard to the Secondary Education Reform, within which there is the possibility of hegemonizing a position contrary to it.
DOI: 10.6084/m9.figshare.10026287
title: Tianeptine Esters Derivatives: A Study of Protein-Drug Interaction Performed by Fluorescence Quenching and Molecular Docking

description: The nature of binding between bovine serum albumin (BSA) and the antidepressant tianeptine and a new series of esters derivatives were studied in this paper. The interactions with BSA were investigated by UV-Vis and fluorescence spectroscopy at three different temperatures. The fluorescence quenching experiments showed that BSA interactions with tianeptine could be dynamic while to its esters a static mechanism was observed. The results showed that tianeptine quenches the intrinsic fluorescence of BSA more efficiently than its esters due to the presence of the free acid portion. The number of binding sites determined by fluorescence spectroscopy is approximately equal to 1 indicating that there is one binding site between BSA tianeptine esters, but the presence of a second interaction site for tianeptine at higher temperatures could be not ruled out. Molecular docking calculations point out a strong affinity of tianeptine and its esters to the site IIA of protein, supporting the hypothesis of a static quenching mechanism.
DOI: 10.6084/m9.figshare.10026290
title: Odonata of the state of Maranhão, Brazil: Wallacean shortfall and priority areas for faunistic inventories

description: Abstract: Environmental changes are worrying in a scenario with large knowledge gaps on species diversity and distribution. Many species may become extinct before they are known to science. Considering this scenario, the present study aims to evaluate the known distribution of the species recorded for Maranhão state in Brazilian northeast region and discuss knowledge gaps about Odonata indicating the priority areas for faunistic inventories. Using primary and secondary data together, we present convex minimum polygons of the distribution of all the species registered for the state. In addition, we created maps with the richness of species and number of records of Odonata in the Maranhão state. In primary data sample 269 specimens, represented by 17 genera and 30 species were collected. Of the 30 species collected, 17 are new records for the state of Maranhão; of these, 35.29% are geographically widespread species, occurring in practically all regions of Brazil. Considering the records in the literature, there was a 68% increase in the number of Odonata species known for Maranhão. The most unexplored region is the Cerrado of the state of Maranhão. Furthermore, the transition regions between Cerrado and Amazônia and between Cerrado and Caatinga are also unknown. All these areas are a priority for faunistic inventories.
DOI: 10.6084/m9.figshare.10026296.v1
title: POLITICS AND EMPTY SIGNIFIERS: AN ANALYSIS OF THE SECONDARY EDUCATION REFORM OF 2017

description: ABSTRACT: The article analyzes the Secondary Education Reform (Law 13.145/17) and Bill 6840/13, addressing the differences and similarities between them and the different political contexts in which they emerged. We seek to understand the Reform as part of a broader movement of “educational reformism” in light of the concepts of Laclau and Mouffe’s political theory. The Secondary Education Reform became a hegemonic discourse before the Temer government, aiming to fill an empty signifier: the crisis of high school. With the emergence of the institutional coup in 2016 there was a rupture, allowing a heterogeneous range of left political groups, positioned in different fields, to unite against a new common enemy: the coup government. In this new framework, a more cohesive and unified opposition bloc was constituted with regard to the Secondary Education Reform, within which there is the possibility of hegemonizing a position contrary to it.
DOI: 10.6084/m9.figshare.10026284
title: THEORETICAL STUDIES ON THE NEW HIGH-NITROGEN EXPLOSIVES N14 AND N18

description: The power of a compound is enhanced by the direct connection of nitrogen atoms, and its stability can be improved through conjugated structure. So novel high energy density materials N14 (1,6-dihydro-1,2,3,3a,4,5,5a,6,7,8,8a,9,10,10a-tetradecazapyrene) and N18 (1,2,2a,3,4,4a,5,6,6a,7,8,8a,9,10,10a,11,12a-octadecazacoronene) were designed, and their structures, detonation performance, and stabilities were calculated employing density functional theory (DFT). The detonation performance includes detonation pressure (P), detonation velocity (D), and heat of detonation (Q). Furthermore, the stability involves frontier molecular orbitals and impact sensitivity. Calculations reveal that they have an excellent power, detonation performance of N14 (P = 43.6 GPa, D = 10040 m s-1, Q = 2214 cal g-1) and N18 (P = 37.4 GPa, D = 9400 m s-1, Q = 2114 cal g-1) are comparable to CL-20. Besides, their impact sensitivities are slightly better than CL-20, therefore they are promising candidates in energetic materials.
DOI: 10.6084/m9.figshare.10026287.v1
title: Tianeptine Esters Derivatives: A Study of Protein-Drug Interaction Performed by Fluorescence Quenching and Molecular Docking

description: The nature of binding between bovine serum albumin (BSA) and the antidepressant tianeptine and a new series of esters derivatives were studied in this paper. The interactions with BSA were investigated by UV-Vis and fluorescence spectroscopy at three different temperatures. The fluorescence quenching experiments showed that BSA interactions with tianeptine could be dynamic while to its esters a static mechanism was observed. The results showed that tianeptine quenches the intrinsic fluorescence of BSA more efficiently than its esters due to the presence of the free acid portion. The number of binding sites determined by fluorescence spectroscopy is approximately equal to 1 indicating that there is one binding site between BSA tianeptine esters, but the presence of a second interaction site for tianeptine at higher temperatures could be not ruled out. Molecular docking calculations point out a strong affinity of tianeptine and its esters to the site IIA of protein, supporting the hypothesis of a static quenching mechanism.
DOI: 10.6084/m9.figshare.10026290.v1
title: Odonata of the state of Maranhão, Brazil: Wallacean shortfall and priority areas for faunistic inventories

description: Abstract: Environmental changes are worrying in a scenario with large knowledge gaps on species diversity and distribution. Many species may become extinct before they are known to science. Considering this scenario, the present study aims to evaluate the known distribution of the species recorded for Maranhão state in Brazilian northeast region and discuss knowledge gaps about Odonata indicating the priority areas for faunistic inventories. Using primary and secondary data together, we present convex minimum polygons of the distribution of all the species registered for the state. In addition, we created maps with the richness of species and number of records of Odonata in the Maranhão state. In primary data sample 269 specimens, represented by 17 genera and 30 species were collected. Of the 30 species collected, 17 are new records for the state of Maranhão; of these, 35.29% are geographically widespread species, occurring in practically all regions of Brazil. Considering the records in the literature, there was a 68% increase in the number of Odonata species known for Maranhão. The most unexplored region is the Cerrado of the state of Maranhão. Furthermore, the transition regions between Cerrado and Amazônia and between Cerrado and Caatinga are also unknown. All these areas are a priority for faunistic inventories.
DOI: 10.14272/omhgnvwhhanwnn-uhfffaoysa-n.2
title: 2,2,6,6-tetramethyl-1-[1-[4-[tris[4-[1-(2,2,6,6-tetramethylpiperidin-1-yl)oxyethyl]phenyl]methyl]phenyl]ethoxy]piperidine
title: InChI=1S/C69H104N4O4/c1-49(74-70-61(5,6)41-21-42-62(70,7)8)53-25-33-57(34-26-53)69(58-35-27-54(28-36-58)50(2)75-71-63(9,10)43-22-44-64(71,11)12,59-37-29-55(30-38-59)51(3)76-72-65(13,14)45-23-46-66(72,15)16)60-39-31-56(32-40-60)52(4)77-73-67(17,18)47-24-48-68(73,19)20/h25-40,49-52H,21-24,41-48H2,1-20H3

description: This dataset contains experimental data from a sample (2,2,6,6-tetramethyl-1-[1-[4-[tris[4-[1-(2,2,6,6-tetramethylpiperidin-1-yl)oxyethyl]phenyl]methyl]phenyl]ethoxy]piperidine, InChI=1S/C69H104N4O4/c1-49(74-70-61(5,6)41-21-42-62(70,7)8)53-25-33-57(34-26-53)69(58-35-27-54(28-36-58)50(2)75-71-63(9,10)43-22-44-64(71,11)12,59-37-29-55(30-38-59)51(3)76-72-65(13,14)45-23-46-66(72,15)16)60-39-31-56(32-40-60)52(4)77-73-67(17,18)47-24-48-68(73,19)20/h25-40,49-52H,21-24,41-48H2,1-20H3). The datasets from the following experiments are available: mass spectrometry (MS) infrared absorption spectroscopy (IR) 1H nuclear magnetic resonance spectroscopy (1H NMR) 13C nuclear magnetic resonance spectroscopy (13C NMR)
DOI: 10.6084/m9.figshare.10026272
title: Contributions of three organizations for the commercialization of family farming at PNAE, in the southern coastline territory of Espírito Santo

description: Abstract: This article analyzes the contributions, advantages and disadvantages of three family farmer organizations to the execution of the National School Feeding Program in the Southern Coastline Territory of Espírito Santo (informal group, association and cooperative). The methodology was qualitative with the use of documentary analysis, interviews and focus groups. It was verified that each organization has contributions and limitations, with emphasis on the informal group that promotes the participation of farmers, with less formalization requirement.
DOI: 10.14272/omhgnvwhhanwnn-uhfffaoysa-n/chmo0000593
title: 1H nuclear magnetic resonance spectroscopy (1H NMR) (2,2,6,6-tetramethyl-1-[1-[4-[tris[4-[1-(2,2,6,6-tetramethylpiperidin-1-yl)oxyethyl]phenyl]methyl]phenyl]ethoxy]piperidine)
title: InChI=1S/C69H104N4O4/c1-49(74-70-61(5,6)41-21-42-62(70,7)8)53-25-33-57(34-26-53)69(58-35-27-54(28-36-58)50(2)75-71-63(9,10)43-22-44-64(71,11)12,59-37-29-55(30-38-59)51(3)76-72-65(13,14)45-23-46-66(72,15)16)60-39-31-56(32-40-60)52(4)77-73-67(17,18)47-24-48-68(73,19)20/h25-40,49-52H,21-24,41-48H2,1-20H3

description: dataset for 1H nuclear magnetic resonance spectroscopy (1H NMR) 1H NMR (400 MHz, CD2Cl2 [5.32 ppm], ppm) δ = 7.21–7.18 (m, 8H, Car.H), 7.11–7.09 (m, 8H, CarH), 4.75 (q, J = 6.6 Hz, 4H, CHO), 1.49–1.27 (m, 48H, CH3 Sidechain, CH2 CH3 TEMPO), 1.15 (bs, 12H, CH3 TEMPO), 1.01 (bs, 12H, CH3 TEMPO), 0.60 (bs, 12H, CH3 TEMPO).
DOI: 10.6084/m9.figshare.10026272.v1
title: Contributions of three organizations for the commercialization of family farming at PNAE, in the southern coastline territory of Espírito Santo

description: Abstract: This article analyzes the contributions, advantages and disadvantages of three family farmer organizations to the execution of the National School Feeding Program in the Southern Coastline Territory of Espírito Santo (informal group, association and cooperative). The methodology was qualitative with the use of documentary analysis, interviews and focus groups. It was verified that each organization has contributions and limitations, with emphasis on the informal group that promotes the participation of farmers, with less formalization requirement.
DOI: 10.6084/m9.figshare.10026275
title: Evaluation of the stiffening mechanism based on micro-sized particle inclusions in laminated composites

description: Rigid particles have been incorporated into laminated composites, especially to enhance their bending performance attributed to the stiffening of the matrix phase (i) and the increased interlaminar shear resistance (ii). In order to better evaluate the improvement mechanism provided by the particulate inclusions, this work investigates the incorporation of micro-sized silica on the top, bottom and both surfaces of glass fibre laminates, mitigating the interference of the interlocking effect. Three-point bending, and impact tests are performed to evaluate the hybrid glass fibre composites containing 5, 7.5 and 10 wt% of micro silica. In addition, the effect of the micro silica particles into epoxy polymers is verified under tensile, compressive and abrasion tests. A finite element model is developed to simulate the three-point bending test and to better assess the behaviour of the composite laminate. Although silica particles lead to increased compressive modulus of the epoxy polymers, their positive effect on glass fibre composites under flexural loads is more evident when placed on the bottom side of the laminates subjected to the maximum tensile stress. The incorporation of 7.5 wt% silica microparticles at the bottom surface of the laminates achieves higher flexural strength and lower impact resistance.
DOI: 10.6084/m9.figshare.10026278
title: Control of ALS- and EPSPS-Resistant Amaranthus palmeri by Alternative Herbicides Applied in PRE- and POST-Emergence

description: ABSTRACT: The emergence of resistant biotypes of the Amaranthus palmeri species in cotton production areas of the state of Mato Grosso, Brazil, generated the need for correct identification of this species and information on viable herbicidal tools for their management. Thus, greenhouse experiments were conducted to evaluate the efficacy of alternative herbicides applied to A. palmeri in pre and post emergence. A randomized block design with four replications was used. The efficacy of herbicides applied in pre emergence was evaluate in two experiments, one in a clayey and other in a sandy soil; 9 herbicide treatments (8 with herbicide application and a control without application) were applied on each soil. Subsequently, two experiments with different populations of A. palmeri were conducted, using a 13 x 2 factorial arrangement, to evaluate the efficacy of herbicides applied in post emergence. The factors consisted of 13 herbicide treatments (12 with herbicide application and a control without application) and two weed development stages (2-4 and 6-8 leaves). Pre-emergence application of the flumioxazin, S-metolachlor, isoxaflutole, and trifluralin herbicides controlled the weed satisfactorily in both evaluated soils. The sulfentrazone and metribuzin herbicides were effective in the sandy soil, and diuron was effective in the clayey soil. The clomazone herbicide did not successfully controlled the A. palmeri plants in any of the soils. All post-emergence herbicide treatments were effective for the management of A. palmeri plants, when they were applied at the 2-4 leaf stage.
DOI: 10.6084/m9.figshare.10026281
title: Meanings attributed by family and patients to family presence in emergency rooms

description: ABSTRACT Objective: to understand the process that leads adult and family patients to support family presence in emergency care. Method: a qualitative study that adopted Symbolic Interactionism as a theoretical reference and the Grounded Theory as a methodological framework. The theoretical sample consisted of 15 relatives and 15 patients assisted at two emergency units in the South of Brazil. Data were analyzed using open, axial and selective coding. Results: the central category “Convergence of ideas: family members and patients supporting family presence in emergency care” is supported by the categories: “Affectionate relationship among family members”; “Tacit obligation to care for the sick relative”; “Benefits for the family”; “Benefits for the patient”; and “Benefits for the health team”. Conclusion: family presence in emergency care provides maintenance and strengthening of affectionate bonds among relatives and the experience of more sensitive and qualified care.
DOI: 10.6084/m9.figshare.10026284.v1
title: THEORETICAL STUDIES ON THE NEW HIGH-NITROGEN EXPLOSIVES N14 AND N18

description: The power of a compound is enhanced by the direct connection of nitrogen atoms, and its stability can be improved through conjugated structure. So novel high energy density materials N14 (1,6-dihydro-1,2,3,3a,4,5,5a,6,7,8,8a,9,10,10a-tetradecazapyrene) and N18 (1,2,2a,3,4,4a,5,6,6a,7,8,8a,9,10,10a,11,12a-octadecazacoronene) were designed, and their structures, detonation performance, and stabilities were calculated employing density functional theory (DFT). The detonation performance includes detonation pressure (P), detonation velocity (D), and heat of detonation (Q). Furthermore, the stability involves frontier molecular orbitals and impact sensitivity. Calculations reveal that they have an excellent power, detonation performance of N14 (P = 43.6 GPa, D = 10040 m s-1, Q = 2214 cal g-1) and N18 (P = 37.4 GPa, D = 9400 m s-1, Q = 2114 cal g-1) are comparable to CL-20. Besides, their impact sensitivities are slightly better than CL-20, therefore they are promising candidates in energetic materials.
DOI: 10.14272/omhgnvwhhanwnn-uhfffaoysa-n/chmo0000595
title: 13C nuclear magnetic resonance spectroscopy (13C NMR) (2,2,6,6-tetramethyl-1-[1-[4-[tris[4-[1-(2,2,6,6-tetramethylpiperidin-1-yl)oxyethyl]phenyl]methyl]phenyl]ethoxy]piperidine)
title: InChI=1S/C69H104N4O4/c1-49(74-70-61(5,6)41-21-42-62(70,7)8)53-25-33-57(34-26-53)69(58-35-27-54(28-36-58)50(2)75-71-63(9,10)43-22-44-64(71,11)12,59-37-29-55(30-38-59)51(3)76-72-65(13,14)45-23-46-66(72,15)16)60-39-31-56(32-40-60)52(4)77-73-67(17,18)47-24-48-68(73,19)20/h25-40,49-52H,21-24,41-48H2,1-20H3

description: dataset for 13C nuclear magnetic resonance spectroscopy (13C NMR) 13C NMR (100 MHz, CD2Cl2 [54.0 ppm], ppm) δ = 146.5 (4C, Cq), 143.4 (4C, Cq), 131.3 (8C, Car.H), 126.5 (8C, CarH), 83.0 (4C, CHO), 64.7 (1C, Cq), 60.4 (4C, Cq TEMPO), 59.9 (4C, Cq TEMPO), 40.9 (8C, CH2 TEMPO), 34.7 (4C, CH3 TEMPO), 34.5 (4C, CH3 TEMPO), 22.9 (4C, CH3 Sidechain), 20.7 (4C, CH3 TEMPO), 20.6 (4C, CH3 TEMPO), 17.8 (4C, CH2 TEMPO).
DOI: 10.6084/m9.figshare.10026278.v1
title: Control of ALS- and EPSPS-Resistant Amaranthus palmeri by Alternative Herbicides Applied in PRE- and POST-Emergence

description: ABSTRACT: The emergence of resistant biotypes of the Amaranthus palmeri species in cotton production areas of the state of Mato Grosso, Brazil, generated the need for correct identification of this species and information on viable herbicidal tools for their management. Thus, greenhouse experiments were conducted to evaluate the efficacy of alternative herbicides applied to A. palmeri in pre and post emergence. A randomized block design with four replications was used. The efficacy of herbicides applied in pre emergence was evaluate in two experiments, one in a clayey and other in a sandy soil; 9 herbicide treatments (8 with herbicide application and a control without application) were applied on each soil. Subsequently, two experiments with different populations of A. palmeri were conducted, using a 13 x 2 factorial arrangement, to evaluate the efficacy of herbicides applied in post emergence. The factors consisted of 13 herbicide treatments (12 with herbicide application and a control without application) and two weed development stages (2-4 and 6-8 leaves). Pre-emergence application of the flumioxazin, S-metolachlor, isoxaflutole, and trifluralin herbicides controlled the weed satisfactorily in both evaluated soils. The sulfentrazone and metribuzin herbicides were effective in the sandy soil, and diuron was effective in the clayey soil. The clomazone herbicide did not successfully controlled the A. palmeri plants in any of the soils. All post-emergence herbicide treatments were effective for the management of A. palmeri plants, when they were applied at the 2-4 leaf stage.
DOI: 10.6084/m9.figshare.10026281.v1
title: Meanings attributed by family and patients to family presence in emergency rooms

description: ABSTRACT Objective: to understand the process that leads adult and family patients to support family presence in emergency care. Method: a qualitative study that adopted Symbolic Interactionism as a theoretical reference and the Grounded Theory as a methodological framework. The theoretical sample consisted of 15 relatives and 15 patients assisted at two emergency units in the South of Brazil. Data were analyzed using open, axial and selective coding. Results: the central category “Convergence of ideas: family members and patients supporting family presence in emergency care” is supported by the categories: “Affectionate relationship among family members”; “Tacit obligation to care for the sick relative”; “Benefits for the family”; “Benefits for the patient”; and “Benefits for the health team”. Conclusion: family presence in emergency care provides maintenance and strengthening of affectionate bonds among relatives and the experience of more sensitive and qualified care.
DOI: 10.14272/omhgnvwhhanwnn-uhfffaoysa-n/chmo0000470
title: mass spectrometry (MS) (2,2,6,6-tetramethyl-1-[1-[4-[tris[4-[1-(2,2,6,6-tetramethylpiperidin-1-yl)oxyethyl]phenyl]methyl]phenyl]ethoxy]piperidine)
title: InChI=1S/C69H104N4O4/c1-49(74-70-61(5,6)41-21-42-62(70,7)8)53-25-33-57(34-26-53)69(58-35-27-54(28-36-58)50(2)75-71-63(9,10)43-22-44-64(71,11)12,59-37-29-55(30-38-59)51(3)76-72-65(13,14)45-23-46-66(72,15)16)60-39-31-56(32-40-60)52(4)77-73-67(17,18)47-24-48-68(73,19)20/h25-40,49-52H,21-24,41-48H2,1-20H3

description: dataset for mass spectrometry (MS) FAB (3-NBA, m/z): 1054 [M+ + H], 897 [M+ – TEMPO], 741 [M+ – 2 TEMPO], 584 [M+ – 3 TEMPO], 443, 442, 428 [M+ – 4 TEMPO], 324 [C25H24+], 208, 158 [TEMPO+ + 2H], 156 [TEMPO+], 142 [TEMPO+ – CH3 + H], 140 [TEMPO+ – O]. HRMS–FAB (m/z): [M + H]+ calcd for C69H105N4O4, 1053.8130; found, 1053.8132.