cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7512950.v1
title: Analysis of the national scientific production on the work of nurses (1988-2014)

description: ABSTRACT The study aims to analyze the scientific production on the work of nurse in Brazil, from 1988 to 2014. The database used was the Scientific Electronic Library Online (SciELO). We selected 222 articles, characterized by the year of publication, journal, theoretical-methodological approach and thematic area, seeking to identify changes in the work of the nurse. The results point to the introduction of new knowledges and technologies, with loss of autonomy, as well as deterioration of interpersonal relationships, suffering and work overload. It discusses the possible correlation of such processes with the changes in the organization and management of health systems in Brazil.
DOI: 10.6084/m9.figshare.7515872.v1
title: Deproteinization: an integrated-solution approach to increase efficiency in β-galactosidase production using cheese whey powder (CWP) solution

description: Abstract Whey is the liquid that results from the coagulation of milk during cheese manufacture. Cheese whey is also an important environmental pollution source. The present experiment sought to compare β-galactosidase (EC 3.2.1.23) production by Aspergillus oryzae from deproteinized and un-deproteinized CWP solutions. β-galactosidase was produced by submerged fermentation in deproteinized or un-deproteinized CWP solutions. To determine the activity of the enzyme, a reaction mixture containing cell-free extract and ortho-Nitrophenyl-β-galactoside (ONPG) was used. The results indicated that β-galactosidase induction was greater when using deproteinized CWP solution compared to the un-deproteinized CWP solution. These results may enable an alternative management of cheese whey, thereby decreasing its impact on the environment and producing value-added biomacromolecules.
DOI: 10.6084/m9.figshare.11839746
title: Effect of Different Temperatures on the Germination of Callisthene major (Vochysiaceae)

description: Abstract Knowledge of environmental conditions for seed germination and seedling formation of forest species is essential. The objective of this work is to evaluate the germination of Callisthene major seeds under laboratory conditions using six different temperatures (20, 25, 30, 35, 20-30 and 25-35 °C) and germitest paper (on and between paper). A completely randomized design was used with four replicates of 25 seeds per experimental unit. The variables evaluated were germination (%), germination speed index (GSI), average germination time (AGT) in days and normal seedlings. The results indicated that the species has a high germination index (above 94%) for all tested substrates and temperatures; however, the highest germination vigor (GSI and AGT) was obtained by alternating the temperature between 25-35 °C with the substrate on paper.
DOI: 10.6084/m9.figshare.11839746.v1
title: Effect of Different Temperatures on the Germination of Callisthene major (Vochysiaceae)

description: Abstract Knowledge of environmental conditions for seed germination and seedling formation of forest species is essential. The objective of this work is to evaluate the germination of Callisthene major seeds under laboratory conditions using six different temperatures (20, 25, 30, 35, 20-30 and 25-35 °C) and germitest paper (on and between paper). A completely randomized design was used with four replicates of 25 seeds per experimental unit. The variables evaluated were germination (%), germination speed index (GSI), average germination time (AGT) in days and normal seedlings. The results indicated that the species has a high germination index (above 94%) for all tested substrates and temperatures; however, the highest germination vigor (GSI and AGT) was obtained by alternating the temperature between 25-35 °C with the substrate on paper.
DOI: 10.6084/m9.figshare.11900523
title: The Comparative Photosynthetic Responses of Pinus caribaea var. caribaea and Pinus tropicalis, from Western Cuba

description: Abstract This study aimed to evaluate the photosynthetic responses of Pinus caribaea Morelet var. caribaea Barret & Golfari and Pinus tropicalis Morelet in the ecological conditions of Pinar del Río, Cuba. Data were collected in March 2015 using an open system IRGA-porometer LI-6400. The response of both species was measured by increasing concentrations of carbon dioxide and photosynthetically active radiation. Results indicated that under the same environmental conditions, P. caribaea var. caribaea is more productive than P. tropicalis, since P. caribaea var. caribaea, showed higher values of net CO2 assimilation and reaching the CO2 compensation point at 77 μmol mol-1, against the 113 μmol mol-1 registered by P. tropicalis. The species P. caribaea var. caribaea reached light saturation at lower values than P. tropicalis, and showed greater efficiency for the carboxylation of Rubisco. The results indicated that both species perform C3 photosynthetic mechanism.
DOI: 10.6084/m9.figshare.11900523.v1
title: The Comparative Photosynthetic Responses of Pinus caribaea var. caribaea and Pinus tropicalis, from Western Cuba

description: Abstract This study aimed to evaluate the photosynthetic responses of Pinus caribaea Morelet var. caribaea Barret & Golfari and Pinus tropicalis Morelet in the ecological conditions of Pinar del Río, Cuba. Data were collected in March 2015 using an open system IRGA-porometer LI-6400. The response of both species was measured by increasing concentrations of carbon dioxide and photosynthetically active radiation. Results indicated that under the same environmental conditions, P. caribaea var. caribaea is more productive than P. tropicalis, since P. caribaea var. caribaea, showed higher values of net CO2 assimilation and reaching the CO2 compensation point at 77 μmol mol-1, against the 113 μmol mol-1 registered by P. tropicalis. The species P. caribaea var. caribaea reached light saturation at lower values than P. tropicalis, and showed greater efficiency for the carboxylation of Rubisco. The results indicated that both species perform C3 photosynthetic mechanism.
DOI: 10.6084/m9.figshare.7512950
title: Analysis of the national scientific production on the work of nurses (1988-2014)

description: ABSTRACT The study aims to analyze the scientific production on the work of nurse in Brazil, from 1988 to 2014. The database used was the Scientific Electronic Library Online (SciELO). We selected 222 articles, characterized by the year of publication, journal, theoretical-methodological approach and thematic area, seeking to identify changes in the work of the nurse. The results point to the introduction of new knowledges and technologies, with loss of autonomy, as well as deterioration of interpersonal relationships, suffering and work overload. It discusses the possible correlation of such processes with the changes in the organization and management of health systems in Brazil.
DOI: 10.6084/m9.figshare.11997600
title: Moist Heat Overcomes Physical Dormancy at the Seed Coat Lens in Schizolobium parahyba var. amazonicum

description: ABSTRACT Schizolobium parahyba var. amazonicum (Huber ex Ducke) Barneby (Fabaceae-Caesalpinoideae) is a tree of the Amazon region with pioneer characteristics and large seeds with physical dormancy. Using Accelerated Ageing (AA) methodology, seeds were exposed to Moist Heat (40 °C; &gt;97% Relative Humidity; RH) or Dry Heat (40 °C; 22% RH). Furthermore, it was also investigated dormancy release and the primary site of water entrance into the seeds. Seeds tolerate these conditions for up to six days without any reduction in vigour, however, only Moist Heat could overcome seed dormancy, allowing germination. The lens is the water-gap for primary water entry (where the palisade layer is thinner), as seeds with blocked lens did not imbibe. An unusual multi-layered hypodermis of osteosclereids in the seed coat was observed. Our results suggest that the combination of high temperature with high RH is a key factor involved in overcoming dormancy in the natural habitat of this Amazonian species.
DOI: 10.6084/m9.figshare.7518191
title: Levobupivacaine induces vasodilatation, but not vasoconstriction, in rat mesenteric artery

description: Abstract Introduction Levobupivacaine (LEVO) can replace analgesia because it exhibits low toxicity and causes minor vasoconstriction, enabling its use in patients in whom vasoconstrictors are contraindicated. Objective We aimed to evaluate the effects of LEVO in isolated rat superior mesenteric artery by using the vascular reactivity technique and compare its effect to that of lidocaine. Material and method Arterial rings were obtained from the mesenteric artery of male Wistar rats and kept in organ baths. For recording isometric contractions, each ring was suspended by cotton threads from a force transducer, which was connected to a data acquisition system. Result Both lidocaine and LEVO did not show a vasoconstrictor effect on the basal tone of the arterial rings with functional endothelium. However, when the rings were pre-contracted with phenylephrine, both drugs were able to induce concentration-dependent vasodilatation. The vasodilator effect induced by LEVO did not change after removal of the endothelium, or with the addition of tetraethylammonium (1 mM), a non-selective K+ channel blocker. In the rings without functional endothelium, which were pre-contracted with depolarizing Tyrode’s solution (KCl 80 mM), LEVO-induced vasodilatation was not significantly different from that observed in the rings pre-contracted with phenylephrine. Moreover, it did not show a significant additional vasodilator effect compared to the maximal vasodilator effect of nifedipine. Conclusion This study demonstrated that LEVO produces a vasodilator effect in the rat superior mesenteric artery in an endothelium-independent manner. This effect seems to be mediated via Ca2+ channel blockade in the vascular smooth muscle cells.
DOI: 10.6084/m9.figshare.7518191.v1
title: Levobupivacaine induces vasodilatation, but not vasoconstriction, in rat mesenteric artery

description: Abstract Introduction Levobupivacaine (LEVO) can replace analgesia because it exhibits low toxicity and causes minor vasoconstriction, enabling its use in patients in whom vasoconstrictors are contraindicated. Objective We aimed to evaluate the effects of LEVO in isolated rat superior mesenteric artery by using the vascular reactivity technique and compare its effect to that of lidocaine. Material and method Arterial rings were obtained from the mesenteric artery of male Wistar rats and kept in organ baths. For recording isometric contractions, each ring was suspended by cotton threads from a force transducer, which was connected to a data acquisition system. Result Both lidocaine and LEVO did not show a vasoconstrictor effect on the basal tone of the arterial rings with functional endothelium. However, when the rings were pre-contracted with phenylephrine, both drugs were able to induce concentration-dependent vasodilatation. The vasodilator effect induced by LEVO did not change after removal of the endothelium, or with the addition of tetraethylammonium (1 mM), a non-selective K+ channel blocker. In the rings without functional endothelium, which were pre-contracted with depolarizing Tyrode’s solution (KCl 80 mM), LEVO-induced vasodilatation was not significantly different from that observed in the rings pre-contracted with phenylephrine. Moreover, it did not show a significant additional vasodilator effect compared to the maximal vasodilator effect of nifedipine. Conclusion This study demonstrated that LEVO produces a vasodilator effect in the rat superior mesenteric artery in an endothelium-independent manner. This effect seems to be mediated via Ca2+ channel blockade in the vascular smooth muscle cells.
DOI: 10.6084/m9.figshare.12171597
title: Sanitation policies and programs in the Metropolis of Rio de Janeiro: an analysis in the perspective of environmental inequalities

description: Abstract Precarious access to sanitation is a major environmental problem in the Rio de Janeiro Metropolitan Region. It negatively affects the population’s living conditions and the rivers in this area, being one of the main causes of pollution in the Guanabara Bay. This paper discusses access to sanitation in the region and addresses the historical causes of the deficit and of the environmental inequalities that mark the west side of the Rio de Janeiro Metropolitan Region, focusing on the area known as Baixada Fluminense and on the municipalities located in the Guanabara Bay Watershed. Finally, it seeks to encourage dialogue based on the technical solutions currently presented, especially the treatment given to the theme in the metropolitan plan (PEDUI), approved in 2018.
DOI: 10.6084/m9.figshare.7511360
title: Seroprevalence small ruminant lentiviruses in the state of Pernambuco slaughterhouses, Brazil

description: ABSTRACT: The prevalence of lentivirus infection of small ruminants (LVPR) was determined in samples of serum from goats and sheep in slaughterhouses from ten districts of Pernambuco State. The serological test was used in agarose gel immunodiffusion (AGID) with antigen caprine arthritis and encephalitis virus (CAE)/Maedi Visna virus. Among the 369 blood serum samples of goats examined, seven (1.89%) (0.8-3.9%) were seropositive, and among the 383 sheep samples examined, just one (0.26%) (0.0-1.4%) was infected. The seven seropositive goats came from public slaughterhouses from Gravatá (n=2), Sertânia (n=4) and Timbaúba (n=1), and the soropositive sheep was from a public slaughterhouse of Serra Talhada. The soroprevalence of LVPR infection in small ruminants from Pernambuco's slaughterhouses, of 1.06% (8/752), is considered low.
DOI: 10.6084/m9.figshare.11997600.v1
title: Moist Heat Overcomes Physical Dormancy at the Seed Coat Lens in Schizolobium parahyba var. amazonicum

description: ABSTRACT Schizolobium parahyba var. amazonicum (Huber ex Ducke) Barneby (Fabaceae-Caesalpinoideae) is a tree of the Amazon region with pioneer characteristics and large seeds with physical dormancy. Using Accelerated Ageing (AA) methodology, seeds were exposed to Moist Heat (40 °C; &gt;97% Relative Humidity; RH) or Dry Heat (40 °C; 22% RH). Furthermore, it was also investigated dormancy release and the primary site of water entrance into the seeds. Seeds tolerate these conditions for up to six days without any reduction in vigour, however, only Moist Heat could overcome seed dormancy, allowing germination. The lens is the water-gap for primary water entry (where the palisade layer is thinner), as seeds with blocked lens did not imbibe. An unusual multi-layered hypodermis of osteosclereids in the seed coat was observed. Our results suggest that the combination of high temperature with high RH is a key factor involved in overcoming dormancy in the natural habitat of this Amazonian species.
DOI: 10.6084/m9.figshare.5671321
title: Status and Trends of Smallsats and Their Launch Vehicles — An Up-to-date Review

description: ABSTRACT This paper presents an analysis of the scenario of small satellites and its correspondent launch vehicles. The miniaturization of electronics, together with reliability and performance increase as well as reduction of cost, have allowed the use of commercials-off-the-shelf in the space industry, fostering the Smallsat use. An analysis of the launched Smallsats during the last 20 years is accomplished and the main factors for the Smallsat (r)evolution, outlined. Based on historic data, future scenarios for different mass categories of Smallsats are presented. An analysis of current and future launch vehicles reveals that we are currently in a phase of transition, where old launch vehicles get retired and new ones enter the market. However, the satellite launch vehicle business has been established to carry payloads of thousands of kilos into low Earth orbit and has not adjusted itself to the market of Smallsats. As a result, there is only 1 launch vehicle for dedicated Smallsat launches commercially available, but it carries a high price tag. Several small low-cost launch vehicles under development are identified and the challenges to overcome, discussed. Since these small launch vehicles have similar complexity as huge launch vehicles, high development costs are intrinsic, leading to a high specific price (USD/kg payload).
DOI: 10.6084/m9.figshare.5671321.v1
title: Status and Trends of Smallsats and Their Launch Vehicles — An Up-to-date Review

description: ABSTRACT This paper presents an analysis of the scenario of small satellites and its correspondent launch vehicles. The miniaturization of electronics, together with reliability and performance increase as well as reduction of cost, have allowed the use of commercials-off-the-shelf in the space industry, fostering the Smallsat use. An analysis of the launched Smallsats during the last 20 years is accomplished and the main factors for the Smallsat (r)evolution, outlined. Based on historic data, future scenarios for different mass categories of Smallsats are presented. An analysis of current and future launch vehicles reveals that we are currently in a phase of transition, where old launch vehicles get retired and new ones enter the market. However, the satellite launch vehicle business has been established to carry payloads of thousands of kilos into low Earth orbit and has not adjusted itself to the market of Smallsats. As a result, there is only 1 launch vehicle for dedicated Smallsat launches commercially available, but it carries a high price tag. Several small low-cost launch vehicles under development are identified and the challenges to overcome, discussed. Since these small launch vehicles have similar complexity as huge launch vehicles, high development costs are intrinsic, leading to a high specific price (USD/kg payload).
DOI: 10.6084/m9.figshare.7511360.v1
title: Seroprevalence small ruminant lentiviruses in the state of Pernambuco slaughterhouses, Brazil

description: ABSTRACT: The prevalence of lentivirus infection of small ruminants (LVPR) was determined in samples of serum from goats and sheep in slaughterhouses from ten districts of Pernambuco State. The serological test was used in agarose gel immunodiffusion (AGID) with antigen caprine arthritis and encephalitis virus (CAE)/Maedi Visna virus. Among the 369 blood serum samples of goats examined, seven (1.89%) (0.8-3.9%) were seropositive, and among the 383 sheep samples examined, just one (0.26%) (0.0-1.4%) was infected. The seven seropositive goats came from public slaughterhouses from Gravatá (n=2), Sertânia (n=4) and Timbaúba (n=1), and the soropositive sheep was from a public slaughterhouse of Serra Talhada. The soroprevalence of LVPR infection in small ruminants from Pernambuco's slaughterhouses, of 1.06% (8/752), is considered low.
DOI: 10.6084/m9.figshare.12171597.v1
title: Sanitation policies and programs in the Metropolis of Rio de Janeiro: an analysis in the perspective of environmental inequalities

description: Abstract Precarious access to sanitation is a major environmental problem in the Rio de Janeiro Metropolitan Region. It negatively affects the population’s living conditions and the rivers in this area, being one of the main causes of pollution in the Guanabara Bay. This paper discusses access to sanitation in the region and addresses the historical causes of the deficit and of the environmental inequalities that mark the west side of the Rio de Janeiro Metropolitan Region, focusing on the area known as Baixada Fluminense and on the municipalities located in the Guanabara Bay Watershed. Finally, it seeks to encourage dialogue based on the technical solutions currently presented, especially the treatment given to the theme in the metropolitan plan (PEDUI), approved in 2018.
DOI: 10.6084/m9.figshare.9899966
title: Elementary, Chemical and Energy Characterization of “Dendê” (Elaeis guineensis Jacq.) Waste in the State of Pará

description: ABSTRACT This work aimed to chemically and energetically characterize palm waste in the municipality of Igarapé Açú-PA. The residue was crushed, sieved and acclimated up to 12% of humidity. Chemical analyses were performed in the fresh material, according to NBR standards. Part of the residue was transformed into charcoal at 450 °C, with heating rate of 1.67 °C.min-1 and residence time of 30 minutes. Elementary analysis (CHNS-O) was carried out in the fresh and carbonized material. For biomass, means of 32.67% of lignin and 2.58% of minerals were found. Means of 79.71% for volatile materials and 9.85% for fixed carbon were also found. In the elementary analysis, mean values of 53.79% for carbon and 0.7% for sulfur were found. Palm biomass residues presented high fixed carbon, structural carbon and lignin levels, thus presenting potential to be used in the direct production of energy, activated carbon and also biochar.
DOI: 10.6084/m9.figshare.5861943.v1
title: Analysis of the relations between the built landscapes and social representations of the municipalities of São José dos Campos and Arapeí

description: Abstract The Metropolitan Region of the Paraíba Valley and North Coast (MRPVNC) represents a fruitful scenario the study of social representations. The current territorial conformation exposes the occurrence of historical processes peculiar to each municipality in this Region, and therefore, the remarkable heterogeneity in its socio-spatial content. The study of social representations has allowed the interpretation of regional realities by means of the reading of the built space and its symbols. The municipalities of Sao José dos Campos and Arapeí, whose socio-spatial contrasts are representative of the regional diversity and which have local identities that are quite unique, were selected for the present study. These municipalities were analyzed from the perspective of social representations, considering the symbologies that have consolidated the identities created and resignified over the twentieth century. In this sense, this article presents the analysis of São José dos Campos and Arapeí considering the built landscapes and the social representations propagated by their respective local authorities.
DOI: 10.6084/m9.figshare.7508630
title: Water renewal analysis of the Santos Estuarine System using computational modeling

description: Abstract The investigation of processes inherent in an estuary system allows us to infer more precisely its complex dynamics, assisting in the development of action strategies for environmental management plans and projects in coastal areas. This paper describes a hydrodynamic study of the Santos Estuarine System (São Paulo State, Brazil), focused on its water renewal analysis. A computational model was implemented using SisBaHiA® (Base System for Environmental Hydrodynamics) in order to reproduce the hydrodynamic patterns of the system. Simulations based on Eulerian Transport Model were performed to compute renewal rates for summer and winter representative periods. Results presented on maps and time series indicated that after 30 days the entire system has a total renewal greater than 95%. Seasonal differences could only be verified on the inner regions of the estuary, such as Piaçaguera Channel.