cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.11756688.v1
title: MORPHOPHYSIOLOGY OF RHIZOBIA ISOLATED FROM NATIVE FORAGE OF FABACEAE OF THE CAATINGA

description: ABSTRACT The rhizobia found in Fabaceae plants of the Caatinga may have potential as fodder in the semiarid region, thus increasing the availability of feed for animal production in this region. This study aimed to characterize the morphophysiology of rhizobia strains of the forage species Mimosa tenuiflora (Jurema preta), Macroptilium atropurpureum (Siratro), and Desmanthus pernambucanus (Jureminha). The soil used as the substrate was collected at specific locations in the municipalities of Sertânia, Arcoverde, and São Bento do Una, state of Pernambuco. The characterization of rhizobial colonies included growth period, diameter, elevation, transparency, exopolysaccharides production, and color. In addition, salinity, temperature, and pH tolerance tests of the native rhizobia were conducted. Evaluation of cultures showed that the isolates formed colonies with flat elevation, moderate production of exopolysaccharides, coloration varying from cream to white, and a smooth surface. Physiological tests of abiotic stress resistance showed that the native species isolated from M. tenuiflora were more resistant when grown in soils from the municipality of Sertânia and isolates from M. atropurpureum and D. pernambucanus had high resistance to high temperatures, regardless of place of farming. It can be concluded that native rhizobia from the Semiarid region of Pernambuco show resistance to stress caused by high temperatures, salinity variation, and pH. These characteristics are influenced by soil and the botanical species in symbiosis with the rhizobia.
DOI: 10.6084/m9.figshare.7514546.v1
title: Systematization of information for identifying similar cardiovascular implantable devices

description: Introduction The lack of a terminology to compare medical devices together with the arbitrary and opaque nature of product registration systems are major obstacles to a more informed decision process regarding the use and acquisition of new medical devices. This paper describes the systematization of information to help in the identification of similar cardiovascular implantable devices. Methods The systematization was developed in four stages: definition of the technical attributes of each device group; classification of a sample of devices; implementation of the proposed systematization in Protégé; and evaluation of the application. The systematization dealt with a set of common attributes – indication of use, anatomic location, manufacturer, device model and lifetime; and a set of attributes specific for each type of device. Results The systematization was performed by means of a hierarchy of classes with the respective properties in Protégé, which support three basic functions: data entry, query, and maintenance. 38 queries were designed to allow the identification of similar devices according to their technical characteristics. The users’ evaluation showed that the application fulfilled the requirements to monitor the price of these devices on the market. Conclusions Protégé was a useful tool for the systematization of cardiovascular implantable devices that can be used for the post-market vigilance of medical device safety. To better fulfill this aim, other attributes may be incorporated to better characterize the safety aspects of these devices.
DOI: 10.6084/m9.figshare.8324345
title: Structural and mineralochemical characterization of a pegmatite deposit in the Santa Rosa Pegmatite Field, Minas Gerais Brazil

description: Abstract The Santa Rosa Pegmatite Field (SRPF), in northeastern Minas Gerais State, is one of the most important gemstone sources in Brazil. The economy of several neighboring cities greatly relies on the trade of its gemstones. However, efforts to improve gemstone mining with practical, scientific methods are scarce, making it a yet inexpensive, marginally profitable practice. In this scenario, it is opportune to encourage new approaches to optimize mining in pegmatitic deposits. This study looked into the case of a tourmaline dig in the city of Franciscópolis, near Teófilo Otoni. The pegmatite has a weakly zoned structure, and was formed during the final stages of the Neoproterozoic Araçuaí Orogeny, associated with the intrusion and crystallization of the Santa Rosa Granite. GPR profiles were executed to locate structural anomalies inside the rock and its contacts with the host rock, and mineral samples were characterized based on compositional data obtained from ICP-MS and microprobe analyses. The results provided useful information that enabled the creation of a tridimensional digital model of the dig and the pegmatite dike, and may guide future operations in the dig. In the future, the proposed methodology may be applied to more cases to generate a database of geological information that, in addition to the economic scope, could lead to a better understanding of the local granite-pegmatite systems.
DOI: 10.6084/m9.figshare.5634751.v1
title: An update for cladoceran fauna (Crustacea, Branchiopoda) from Lake Paranoá, Central Brazil, with the first description of a male of Leydigiopsis ornata Daday, 1905

description: Abstract Until recently, Lake Paranoá was considered the most thoroughly studied aquatic environment in relation to cladocerans in the Federal District. However, in new samplings carried out during the dry and rainy seasons of 2014, we found 10 new records of species. These species were presumed to occur in Lake Paranoá because of their range of geographical distribution. The male of Leydigiopsis ornata Daday, 1905 is described for the first time, adding new morphological traits to a recent redescription of the species. The presence of three rows of setulae on the labral keel is unique to the L. ornata male. As is the case in females, the male of L. ornata is mainly differentiated from L. megalops Sars, 1901 and L. curvirostris Sars, 1901 by the morphology of the postabdomen.
DOI: 10.6084/m9.figshare.7273511
title: Value Proposition and Human Capital: strategic marketing practices

description: ABSTRACT One of the marketing practices adopted by organizations to be more efficient in face of the excess of advertising is the value proposition to consumers. The adoption of human capital is one of the options. To such end, the aim of this study was to confirm the use of the ‘human capital’ construct in both the conceptualization and development of the value proposition stages. The social group was comprised of marketing executives working for companies regarded as the best companies to work for. The results of the exploratory procedure showed that all companies understand that human capital is a key attribute in order to develop value proposition and that brand value takes place having human capital as one of its main pillars. The results of the descriptive procedure confirmed the human capital as one of the concepts for value proposition, although such conceptualization process is often changed by strategic partners in the development stage.
DOI: 10.6084/m9.figshare.8324345.v1
title: Structural and mineralochemical characterization of a pegmatite deposit in the Santa Rosa Pegmatite Field, Minas Gerais Brazil

description: Abstract The Santa Rosa Pegmatite Field (SRPF), in northeastern Minas Gerais State, is one of the most important gemstone sources in Brazil. The economy of several neighboring cities greatly relies on the trade of its gemstones. However, efforts to improve gemstone mining with practical, scientific methods are scarce, making it a yet inexpensive, marginally profitable practice. In this scenario, it is opportune to encourage new approaches to optimize mining in pegmatitic deposits. This study looked into the case of a tourmaline dig in the city of Franciscópolis, near Teófilo Otoni. The pegmatite has a weakly zoned structure, and was formed during the final stages of the Neoproterozoic Araçuaí Orogeny, associated with the intrusion and crystallization of the Santa Rosa Granite. GPR profiles were executed to locate structural anomalies inside the rock and its contacts with the host rock, and mineral samples were characterized based on compositional data obtained from ICP-MS and microprobe analyses. The results provided useful information that enabled the creation of a tridimensional digital model of the dig and the pegmatite dike, and may guide future operations in the dig. In the future, the proposed methodology may be applied to more cases to generate a database of geological information that, in addition to the economic scope, could lead to a better understanding of the local granite-pegmatite systems.
DOI: 10.6084/m9.figshare.5634751
title: An update for cladoceran fauna (Crustacea, Branchiopoda) from Lake Paranoá, Central Brazil, with the first description of a male of Leydigiopsis ornata Daday, 1905

description: Abstract Until recently, Lake Paranoá was considered the most thoroughly studied aquatic environment in relation to cladocerans in the Federal District. However, in new samplings carried out during the dry and rainy seasons of 2014, we found 10 new records of species. These species were presumed to occur in Lake Paranoá because of their range of geographical distribution. The male of Leydigiopsis ornata Daday, 1905 is described for the first time, adding new morphological traits to a recent redescription of the species. The presence of three rows of setulae on the labral keel is unique to the L. ornata male. As is the case in females, the male of L. ornata is mainly differentiated from L. megalops Sars, 1901 and L. curvirostris Sars, 1901 by the morphology of the postabdomen.
DOI: 10.6084/m9.figshare.7273511.v1
title: Value Proposition and Human Capital: strategic marketing practices

description: ABSTRACT One of the marketing practices adopted by organizations to be more efficient in face of the excess of advertising is the value proposition to consumers. The adoption of human capital is one of the options. To such end, the aim of this study was to confirm the use of the ‘human capital’ construct in both the conceptualization and development of the value proposition stages. The social group was comprised of marketing executives working for companies regarded as the best companies to work for. The results of the exploratory procedure showed that all companies understand that human capital is a key attribute in order to develop value proposition and that brand value takes place having human capital as one of its main pillars. The results of the descriptive procedure confirmed the human capital as one of the concepts for value proposition, although such conceptualization process is often changed by strategic partners in the development stage.
DOI: 10.6084/m9.figshare.7452431
title: Impacts of cognitive impairment for different levels and causes of traumatic brain injury, and education status in TBI patients

description: ABSTRACT Traumatic brain injury (TBI) is one of main causes of death and disability among many young and old populations in different countries. Objective: The aim of this study were to consider and predict the cognitive impairments according to different levels and causes of TBI, and education status. Methods: The study was performed using the Mini-Mental State Examination (MMSE) to estimate cognitive impairment in patients at a trauma center in Zahedan city. Individuals were considered eligible if 18 years of age or older. This investigation assessed a subset of patients from a 6-month pilot study. Results: The study participants comprised 66% males and 34% females. Patient mean age was 32.5 years and SD was 12.924 years. One-way analysis of variance between groups indicated cognitive impairment related to different levels and causes of TBI, and education status in patients. There was a significant difference in the dimensions of cognitive impairments for different levels and causes of TBI, and education status. A regression test showed that levels of traumatic brain injury (b=.615, p=.001) and education status (b=.426, p=.001) predicted cognitive impairment. Conclusion: Different levels of TBI and education status were useful for predicting cognitive impairment in patients. Severe TBI and no education were associated with worse cognitive performance and higher disability. These data are essential in terms of helping patients understand their needs. Therefore, the factors identified can help plan effective rehabilitation programs.
DOI: 10.6084/m9.figshare.7452431.v1
title: Impacts of cognitive impairment for different levels and causes of traumatic brain injury, and education status in TBI patients

description: ABSTRACT Traumatic brain injury (TBI) is one of main causes of death and disability among many young and old populations in different countries. Objective: The aim of this study were to consider and predict the cognitive impairments according to different levels and causes of TBI, and education status. Methods: The study was performed using the Mini-Mental State Examination (MMSE) to estimate cognitive impairment in patients at a trauma center in Zahedan city. Individuals were considered eligible if 18 years of age or older. This investigation assessed a subset of patients from a 6-month pilot study. Results: The study participants comprised 66% males and 34% females. Patient mean age was 32.5 years and SD was 12.924 years. One-way analysis of variance between groups indicated cognitive impairment related to different levels and causes of TBI, and education status in patients. There was a significant difference in the dimensions of cognitive impairments for different levels and causes of TBI, and education status. A regression test showed that levels of traumatic brain injury (b=.615, p=.001) and education status (b=.426, p=.001) predicted cognitive impairment. Conclusion: Different levels of TBI and education status were useful for predicting cognitive impairment in patients. Severe TBI and no education were associated with worse cognitive performance and higher disability. These data are essential in terms of helping patients understand their needs. Therefore, the factors identified can help plan effective rehabilitation programs.
DOI: 10.6084/m9.figshare.7508594
title: Words and Images of Contemporary Youth Friendship

description: ABSTRACT How the ways friendship ties are established can be thought nowadays? How to advance the discussion of the topic of friendship given its importance in the social and political space? In order to debate those issues, twelve meetings were held with 122 students in the seventh and eighth grades from South Brazilian public schools. The present research takes Michel Foucault’s hermeneutics as its theoretical framework, as well as his studies of ethics and aesthetics. In terms of research findings we highlight the strength of familiar discourse and the contribution of gender dynamics to youth friendship ties. The internet has proved to be of paramount importance to these youngsters, bringing consistent data to investigate how youth friendship relations are being configured nowadays.
DOI: 10.6084/m9.figshare.5772741
title: Direct block scheduling technology: Analysis of Avidity

description: Abstract This study is focused on Direct Block Scheduling testing (Direct Multi-Period Scheduling methodology) which schedules mine production considering the correct discount factor of each mining block, resulting in the final pit. Each block is analyzed individually in order to define the best target period. This methodology presents an improvement of the classical methodology derived from Lerchs-Grossmann's initial proposition improved by Whittle. This paper presents the differences between these methodologies, specially focused on the algorithms' avidity. Avidity is classically defined by the voracious search algorithms, whereupon some of the most famous greedy algorithms are Branch and Bound, Brutal Force and Randomized. Strategies based on heuristics can accentuate the voracity of the optimizer system. The applied algorithm use simulated annealing combined with Tabu Search. The most avid algorithm can select the most profitable blocks in early periods, leading to higher present value in the first periods of mine operation. The application of discount factors to blocks on the Lerchs-Grossmann's final pit has an accentuated effect with time, and this effect may make blocks scheduled for the end of the mine life unfeasible, representing a trend to a decrease in reported reserves.
DOI: 10.6084/m9.figshare.7508594.v1
title: Words and Images of Contemporary Youth Friendship

description: ABSTRACT How the ways friendship ties are established can be thought nowadays? How to advance the discussion of the topic of friendship given its importance in the social and political space? In order to debate those issues, twelve meetings were held with 122 students in the seventh and eighth grades from South Brazilian public schools. The present research takes Michel Foucault’s hermeneutics as its theoretical framework, as well as his studies of ethics and aesthetics. In terms of research findings we highlight the strength of familiar discourse and the contribution of gender dynamics to youth friendship ties. The internet has proved to be of paramount importance to these youngsters, bringing consistent data to investigate how youth friendship relations are being configured nowadays.
DOI: 10.6084/m9.figshare.7513787
title: Selectivity and precarious labor in the highly skilled migration from Latin America and the Caribbean, 2000-2010

description: Abstract The aim of this paper is to examine the main changes in the levels and trends of global highly skilled migration between 2000 and 2010, with special emphasis on what happens in the Latin America and the Caribbean region (LAC). The paper takes as analytical axes the selective immigration policies of highly skilled migrants in the countries of destination, the limited incorporation of them in the origin countries, and their precarious labor incorporation in the economies of the global North. The information used here is the recently published database by the Organization for Economic Co-operation and Development (OECD) known as DIOC 2000/01 and 2010/11. The article shows an accelerated increase in skilled labor migration (particularly in the case of women), an increase in the "brain drain" between 2000 and 2010, and an increasingly precarious and unfavorable labor insertion for highly skilled migrants of LAC.
DOI: 10.6084/m9.figshare.8324408
title: Influence of grinding on the pozzolanic activity of granite residue

description: Abstract This study explores the potential of the granite residue to be applied as a supplementary cementitious material. Furthermore, the efficiency of grinding methods in the improvement of the residue reactivity was also evaluated. The granite residue was collected in a facility located in Brazil and used as a Portland cement replacement with a substitution rate of 25% in mass. The residue was submitted to wet, dry and additive dry grinding methods, with several different times. The cement-based composites were characterized by quantitative X-Ray diffraction using the Rietveld's method, thermogravimetric analysis, and compressive strength. In conclusion, there was observed a higher efficiency of the wet grinding method, followed by an increase in compressive strength results as grinding time increased. Furthermore, the portlandite content was lower in the cement-based composite with granite residue, especially in the samples ground for 60, 120, and 180 minutes; a fact that summed up with other results for the pozzolanic potential of the granite residue.
DOI: 10.6084/m9.figshare.7513787.v1
title: Selectivity and precarious labor in the highly skilled migration from Latin America and the Caribbean, 2000-2010

description: Abstract The aim of this paper is to examine the main changes in the levels and trends of global highly skilled migration between 2000 and 2010, with special emphasis on what happens in the Latin America and the Caribbean region (LAC). The paper takes as analytical axes the selective immigration policies of highly skilled migrants in the countries of destination, the limited incorporation of them in the origin countries, and their precarious labor incorporation in the economies of the global North. The information used here is the recently published database by the Organization for Economic Co-operation and Development (OECD) known as DIOC 2000/01 and 2010/11. The article shows an accelerated increase in skilled labor migration (particularly in the case of women), an increase in the "brain drain" between 2000 and 2010, and an increasingly precarious and unfavorable labor insertion for highly skilled migrants of LAC.
DOI: 10.6084/m9.figshare.7834982
title: A suburban racecourse: the experience of the Club de Corridas Santa Cruz (Rio de Janeiro - 1912/1918)

description: ABSTRACT Many historical studies have focused on the sporting events promoted in the socioeconomically privileged region of Rio de Janeiro. There is, however, little research on other parts of the city, especially on the suburbs. The understanding of these occurrences can help further understanding on the sport and the process of urbanization. That being said, this study aims to discuss the experience of Club de Corridas Santa Cruz, a turf society that was active between the years of 1912 and 1918. Specifically, it intends to address the stigmas and operational problems that it had to face because it was founded in a peripheral area. Newspapers and magazines published in the period were used in order to fulfill this objective.
DOI: 10.6084/m9.figshare.7834982.v1
title: A suburban racecourse: the experience of the Club de Corridas Santa Cruz (Rio de Janeiro - 1912/1918)

description: ABSTRACT Many historical studies have focused on the sporting events promoted in the socioeconomically privileged region of Rio de Janeiro. There is, however, little research on other parts of the city, especially on the suburbs. The understanding of these occurrences can help further understanding on the sport and the process of urbanization. That being said, this study aims to discuss the experience of Club de Corridas Santa Cruz, a turf society that was active between the years of 1912 and 1918. Specifically, it intends to address the stigmas and operational problems that it had to face because it was founded in a peripheral area. Newspapers and magazines published in the period were used in order to fulfill this objective.
DOI: 10.6084/m9.figshare.5772741.v1
title: Direct block scheduling technology: Analysis of Avidity

description: Abstract This study is focused on Direct Block Scheduling testing (Direct Multi-Period Scheduling methodology) which schedules mine production considering the correct discount factor of each mining block, resulting in the final pit. Each block is analyzed individually in order to define the best target period. This methodology presents an improvement of the classical methodology derived from Lerchs-Grossmann's initial proposition improved by Whittle. This paper presents the differences between these methodologies, specially focused on the algorithms' avidity. Avidity is classically defined by the voracious search algorithms, whereupon some of the most famous greedy algorithms are Branch and Bound, Brutal Force and Randomized. Strategies based on heuristics can accentuate the voracity of the optimizer system. The applied algorithm use simulated annealing combined with Tabu Search. The most avid algorithm can select the most profitable blocks in early periods, leading to higher present value in the first periods of mine operation. The application of discount factors to blocks on the Lerchs-Grossmann's final pit has an accentuated effect with time, and this effect may make blocks scheduled for the end of the mine life unfeasible, representing a trend to a decrease in reported reserves.