cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.8325110.v1
title: 01. Komposisi Responden

description: Pada tahun ini, Creative Commons Indonesia (CCID) sudah menginjak tahun kedelapan sebagai salah satu perwakilan lokal resmi Creative Commons International (CC HQ). Hingga saat ini, terhitung sebanyak 34 lokakarya telah terselenggara dan lebih dari 500.000 konten (termasuk artikel-artikel Wikipedia Bahasa Indonesia) yang menerapkan lisensi Creative Commons (CC) di Indonesia. Kami ingin mengetahui kaitan angka-angka tersebut dengan pengetahuan hak cipta dan lisensi CC, khususnya bagi pengguna internet di Indonesia. <br>Survei ini merupakan cara kami untuk memperoleh gambaran awal perilaku dan ukuran tingkat pengetahuan dari para pengguna internet di Indonesia terkait hal-hal tersebut, serta mengetahui apakah respon-respon dalam survei memiliki keterkaitan dengan statistik jumlah ciptaan yang ada.
DOI: 10.6084/m9.figshare.8325101
title: 02. Perilaku Responden Dalam Penggunaan Konten Daring

description: Pada tahun ini, Creative Commons Indonesia (CCID) sudah menginjak tahun kedelapan sebagai salah satu perwakilan lokal resmi Creative Commons International (CC HQ). Hingga saat ini, terhitung sebanyak 34 lokakarya telah terselenggara dan lebih dari 500.000 konten (termasuk artikel-artikel Wikipedia Bahasa Indonesia) yang menerapkan lisensi Creative Commons (CC) di Indonesia. Kami ingin mengetahui kaitan angka-angka tersebut dengan pengetahuan hak cipta dan lisensi CC, khususnya bagi pengguna internet di Indonesia. <br>Survei ini merupakan cara kami untuk memperoleh gambaran awal perilaku dan ukuran tingkat pengetahuan dari para pengguna internet di Indonesia terkait hal-hal tersebut, serta mengetahui apakah respon-respon dalam survei memiliki keterkaitan dengan statistik jumlah ciptaan yang ada.
DOI: 10.6084/m9.figshare.8325107.v1
title: 03. Penjelasan Pengetahuan Tentang Lisensi CC oleh Responden

description: Pada tahun ini, Creative Commons Indonesia (CCID) sudah menginjak tahun kedelapan sebagai salah satu perwakilan lokal resmi Creative Commons International (CC HQ). Hingga saat ini, terhitung sebanyak 34 lokakarya telah terselenggara dan lebih dari 500.000 konten (termasuk artikel-artikel Wikipedia Bahasa Indonesia) yang menerapkan lisensi Creative Commons (CC) di Indonesia. Kami ingin mengetahui kaitan angka-angka tersebut dengan pengetahuan hak cipta dan lisensi CC, khususnya bagi pengguna internet di Indonesia. <br>Survei ini merupakan cara kami untuk memperoleh gambaran awal perilaku dan ukuran tingkat pengetahuan dari para pengguna internet di Indonesia terkait hal-hal tersebut, serta mengetahui apakah respon-respon dalam survei memiliki keterkaitan dengan statistik jumlah ciptaan yang ada.
DOI: 10.6084/m9.figshare.8325101.v1
title: 02. Perilaku Responden Dalam Penggunaan Konten Daring

description: Pada tahun ini, Creative Commons Indonesia (CCID) sudah menginjak tahun kedelapan sebagai salah satu perwakilan lokal resmi Creative Commons International (CC HQ). Hingga saat ini, terhitung sebanyak 34 lokakarya telah terselenggara dan lebih dari 500.000 konten (termasuk artikel-artikel Wikipedia Bahasa Indonesia) yang menerapkan lisensi Creative Commons (CC) di Indonesia. Kami ingin mengetahui kaitan angka-angka tersebut dengan pengetahuan hak cipta dan lisensi CC, khususnya bagi pengguna internet di Indonesia. <br>Survei ini merupakan cara kami untuk memperoleh gambaran awal perilaku dan ukuran tingkat pengetahuan dari para pengguna internet di Indonesia terkait hal-hal tersebut, serta mengetahui apakah respon-respon dalam survei memiliki keterkaitan dengan statistik jumlah ciptaan yang ada.
DOI: 10.6084/m9.figshare.8324756
title: CROP DATA RETRIEVAL USING EARTH OBSERVATION DATA TO SUPPORT AGRICULTURAL WATER MANAGEMENT

description: ABSTRACT Accurate crop data are essential for reliable irrigation water requirements (IWR) calculations, which can be acquired during the crop growth season for a given region using earth observation (EO) satellite time series. In addition, a relationship between crop coefficients and the NDVI can be established to allow for crop evapotranspiration estimation. The main objective of the present work was to develop a methodology, and its implementation in an application software, to extract crop parameters from EO image time series for a set of parcels of different types of crops, to be used as input data for a soil water balance model to compute IWR. The methodology was tested at two distinct test sites, the Vila Franca de Xira (site I) and Vila Velha de Ródão (site II) municipalities, Portugal. Landsat-7 and −8 images acquired from April to October 2013 were used for site I, while SPOT-5 Take-5 images from April to September 2015 were considered for site II. EO data were used to estimate the basal crop coefficients, planting dates, and crops growth stage lengths. Based on crop, soil and meteorological data, the IWR for the main crops of both test regions were estimated using the IrrigRotation model. The crop coefficient curves obtained from the EO data proved to be reliable for IWR estimation.
DOI: 10.6084/m9.figshare.8324756.v1
title: CROP DATA RETRIEVAL USING EARTH OBSERVATION DATA TO SUPPORT AGRICULTURAL WATER MANAGEMENT

description: ABSTRACT Accurate crop data are essential for reliable irrigation water requirements (IWR) calculations, which can be acquired during the crop growth season for a given region using earth observation (EO) satellite time series. In addition, a relationship between crop coefficients and the NDVI can be established to allow for crop evapotranspiration estimation. The main objective of the present work was to develop a methodology, and its implementation in an application software, to extract crop parameters from EO image time series for a set of parcels of different types of crops, to be used as input data for a soil water balance model to compute IWR. The methodology was tested at two distinct test sites, the Vila Franca de Xira (site I) and Vila Velha de Ródão (site II) municipalities, Portugal. Landsat-7 and −8 images acquired from April to October 2013 were used for site I, while SPOT-5 Take-5 images from April to September 2015 were considered for site II. EO data were used to estimate the basal crop coefficients, planting dates, and crops growth stage lengths. Based on crop, soil and meteorological data, the IWR for the main crops of both test regions were estimated using the IrrigRotation model. The crop coefficient curves obtained from the EO data proved to be reliable for IWR estimation.
DOI: 10.6084/m9.figshare.8324744
title: A Novel Fractal Multi-band Frequency Selective Surface

description: Abstract In this paper, a new multiband fractal frequency selective surface (MF-FSS) is proposed. The work presents a new fractal design methodology for FSSs with Swastika fractal patch elements. The proposed MF-FSS includes periodic arrays of metallic patches, printed on a single layer substrate. The structure parametric analysis is carried out in terms of fractal iterations, geometry elements, and unit-cell size. The simple controllable feature of the proposed structure lets us tune the given parameters of FSS geometry to achieve adjustable bandstop filter. The fractal geometry allows us to design compact structures (CP = 54%) that behave like dual-polarized bandstop filters. The designed structure is validated by means of an excellent agreement between the simulation and measurement results. Also, results show the proposed structure presents the most desirable features like fractal compactness, multiband response, dual polarization, excellent angular stability, and controllability. This work presents a fundamental structure that can be applied into the more complex and sophisticated designs in future.
DOI: 10.6084/m9.figshare.8324741
title: Wideband Pattern Reconfigurable Printed-Yagi Antenna Array Based on Feed Structure

description: Abstract A pattern reconfigurable antenna array with two elements is designed in this paper. The antenna element is made up of a printed Yagi and feed structure with variable phase. By changing the states of diodes in the feed structure of these two elements, the far-field radiation phase of both elements can be changed. That is, the pattern reconfigurable function of the array is realized. In this way, the impedance bandwidth of array is 75.9% (2.7~6.0 GHz), in which the peak gain direction can be switched between -θ, 0 and +θ (θ = 10°~16° at different frequencies). With the simple reconfigurable structure, the peak gain direction can be adjusted according to demands. It can be applied to broadband investigation systems. To verify the feasibility, a prototype is fabricated, measured, and reasonable agreement between the simulated and measured results is obtained.
DOI: 10.6084/m9.figshare.8324744.v1
title: A Novel Fractal Multi-band Frequency Selective Surface

description: Abstract In this paper, a new multiband fractal frequency selective surface (MF-FSS) is proposed. The work presents a new fractal design methodology for FSSs with Swastika fractal patch elements. The proposed MF-FSS includes periodic arrays of metallic patches, printed on a single layer substrate. The structure parametric analysis is carried out in terms of fractal iterations, geometry elements, and unit-cell size. The simple controllable feature of the proposed structure lets us tune the given parameters of FSS geometry to achieve adjustable bandstop filter. The fractal geometry allows us to design compact structures (CP = 54%) that behave like dual-polarized bandstop filters. The designed structure is validated by means of an excellent agreement between the simulation and measurement results. Also, results show the proposed structure presents the most desirable features like fractal compactness, multiband response, dual polarization, excellent angular stability, and controllability. This work presents a fundamental structure that can be applied into the more complex and sophisticated designs in future.
DOI: 10.6084/m9.figshare.8324741.v1
title: Wideband Pattern Reconfigurable Printed-Yagi Antenna Array Based on Feed Structure

description: Abstract A pattern reconfigurable antenna array with two elements is designed in this paper. The antenna element is made up of a printed Yagi and feed structure with variable phase. By changing the states of diodes in the feed structure of these two elements, the far-field radiation phase of both elements can be changed. That is, the pattern reconfigurable function of the array is realized. In this way, the impedance bandwidth of array is 75.9% (2.7~6.0 GHz), in which the peak gain direction can be switched between -θ, 0 and +θ (θ = 10°~16° at different frequencies). With the simple reconfigurable structure, the peak gain direction can be adjusted according to demands. It can be applied to broadband investigation systems. To verify the feasibility, a prototype is fabricated, measured, and reasonable agreement between the simulated and measured results is obtained.
DOI: 10.6084/m9.figshare.8324735
title: Solution of the hydrogen atom using Supersymmetry

description: Abstract In this work we present the solution of the Schrödinger equation through a modern version of the factorization method by using the formalism of the so-called Supersymmetric Quantum Mechanics. The analyzed system is the hydrogen atom, the radial and the angular parts of the spherical coordinates are studied with the presented methodology. Special emphasis is given to adaptation made to each of these coordinates. The approach used is general and can be presented as an alternative to traditional methods of solution of the Schrödinger equation such as the Frobenius method.
DOI: 10.6084/m9.figshare.8324726
title: ERGONOMIC AND SAFETY CONDITIONS ASSESSMENT OF TRACTORS USED BY SMALLHOLDERS ACCORDING TO BRAZILIAN LEGISLATION AND CURRENT STANDARDS

description: ABSTRACT This article aimed to select items with which to evaluate the ergonomic and safety conditions in tractors used by smallholders and family farmers, based on standardization research and legislation for the sector. Brazil has a comprehensive set of technical standards and legislation for the agricultural machinery sector intended to guarantee product standardization and to promote the health and safety of the users. Therefore, the initial step of this research was to review the technical norms and legislation for the product in order to develop instruments to assess their ergonomic and safety conditions. Twenty-eight Brazilian Technical Standards (NBR) and four Regulatory Norms (NRs) were investigated, in addition to CONTRAN (the Brazilian Traffic Council) Resolution No. 227/2007, which establishes requirements for vehicle lighting and signaling systems, generating 57 safety evaluation items and 35 ergonomic items. These evaluating items were applied to six tractor models commonly sold to smallholders with a rated engine power of 37–57kW. The results indicate levels of safety unconformities as high as 39.7% for the worst case and 44.7% ergonomic-related problems for the same tractor model. These data point to the need for improvements, especially in lower power tractors.
DOI: 10.6084/m9.figshare.8324729
title: Frequency Domain Interleaving for Dense WDM Passive Optical Network

description: Abstract In this work, we introduce a new concept of frequency interleaving applied to passive optical networks based in Dense Wavelength Division Multiplexing (DWDM). In order to explore colorless ONUs approach, a single and centralized optical source is used to create the interleaved wavelengths for the downstream and upstream path. In this case, frequency comb generation implemented by recirculating frequency shifting technique allowed the creation of all the wavelengths used in each path. The reception operation is accomplished by introducing, at the ONU side, a combination of a set of optical passive elements. The system with 4 × 12.5 Gbit/s NRZ-OOK (Not Return to Zero - On-Off Keying) modulation format were simulated through 20 km of standard single mode fiber link in both transmission paths. In order to guarantee a high quality optical frequency comb source, the optical carrier-to-noise-ratio (OCNR) was evaluated as well as BER (bit error rate), to analyze the system performance. All devices models and simulations were performed in Matlab environment.
DOI: 10.6084/m9.figshare.8324735.v1
title: Solution of the hydrogen atom using Supersymmetry

description: Abstract In this work we present the solution of the Schrödinger equation through a modern version of the factorization method by using the formalism of the so-called Supersymmetric Quantum Mechanics. The analyzed system is the hydrogen atom, the radial and the angular parts of the spherical coordinates are studied with the presented methodology. Special emphasis is given to adaptation made to each of these coordinates. The approach used is general and can be presented as an alternative to traditional methods of solution of the Schrödinger equation such as the Frobenius method.
DOI: 10.6084/m9.figshare.8324720
title: The bony fishes (Teleostei) caught by industrial trawlers off the Brazilian North coast, with insights into its conservation

description: ABSTRACT The Brazilian North coast is one of the world’s most important shrimp fishery grounds, with a total area of approximately 223,000 km2. However, the available data on the diversity of fish caught by the region’s industrial trawler fleet are limited to the commercially-valuable species. This lacuna in the data on the region’s marine fish fauna is worrying, both for the management of stocks and the conservation of the local biodiversity. The present study was based on a comprehensive inventory of the teleost fishes captured by the industrial outrigger trawling operations off the North coast of Brazil. This inventory recorded 201 species belonging to 64 families and 20 orders, and revealed a unique fauna, characterized by 17 endemic species, and a mixture of estuarine-dependent and marine species, mainly associated with coral reefs. The Kernel density analysis indicated that the industrial trawling fleet operates within an important ecotone, which encompasses the transition zones of different fish communities found off the Brazilian North coast.
DOI: 10.6084/m9.figshare.8324729.v1
title: Frequency Domain Interleaving for Dense WDM Passive Optical Network

description: Abstract In this work, we introduce a new concept of frequency interleaving applied to passive optical networks based in Dense Wavelength Division Multiplexing (DWDM). In order to explore colorless ONUs approach, a single and centralized optical source is used to create the interleaved wavelengths for the downstream and upstream path. In this case, frequency comb generation implemented by recirculating frequency shifting technique allowed the creation of all the wavelengths used in each path. The reception operation is accomplished by introducing, at the ONU side, a combination of a set of optical passive elements. The system with 4 × 12.5 Gbit/s NRZ-OOK (Not Return to Zero - On-Off Keying) modulation format were simulated through 20 km of standard single mode fiber link in both transmission paths. In order to guarantee a high quality optical frequency comb source, the optical carrier-to-noise-ratio (OCNR) was evaluated as well as BER (bit error rate), to analyze the system performance. All devices models and simulations were performed in Matlab environment.
DOI: 10.6084/m9.figshare.8324726.v1
title: ERGONOMIC AND SAFETY CONDITIONS ASSESSMENT OF TRACTORS USED BY SMALLHOLDERS ACCORDING TO BRAZILIAN LEGISLATION AND CURRENT STANDARDS

description: ABSTRACT This article aimed to select items with which to evaluate the ergonomic and safety conditions in tractors used by smallholders and family farmers, based on standardization research and legislation for the sector. Brazil has a comprehensive set of technical standards and legislation for the agricultural machinery sector intended to guarantee product standardization and to promote the health and safety of the users. Therefore, the initial step of this research was to review the technical norms and legislation for the product in order to develop instruments to assess their ergonomic and safety conditions. Twenty-eight Brazilian Technical Standards (NBR) and four Regulatory Norms (NRs) were investigated, in addition to CONTRAN (the Brazilian Traffic Council) Resolution No. 227/2007, which establishes requirements for vehicle lighting and signaling systems, generating 57 safety evaluation items and 35 ergonomic items. These evaluating items were applied to six tractor models commonly sold to smallholders with a rated engine power of 37–57kW. The results indicate levels of safety unconformities as high as 39.7% for the worst case and 44.7% ergonomic-related problems for the same tractor model. These data point to the need for improvements, especially in lower power tractors.
DOI: 10.6084/m9.figshare.8324714
title: Historical biogeography of fishes from coastal basins of Maranhão State, northeastern Brazil

description: ABSTRACT The Amazonian ichthyofauna is one of the most diverse in the world, yet fishes from the adjacent coastal basins of Maranhão State in Northeastern Brazil remain poorly known. We use phylogeographic, community phylogenetic and phylogenetic beta diversity methods to study the biogeographic history of fishes from the coastal basins of Maranhão State. We report a total of 160 fish species from the basins of the Maranhão region, representing a 93% increase over results of previous studies. All the fish species assemblages from Maranhão are polyphyletic, with only a few putative sister species pairs inhabiting the region. The modern watershed divides among Maranhão basins do not form substantial barriers to dispersal for freshwater fish species, and are more effectively modelled as biogeographic islands than as biogeographic provinces. In combination these results suggest that the Maranhão ichthyofauna was assembled under the influence of several macroevolutionary (extinction, dispersal) and landscape evolution processes, during the Miocene and Pliocene, as well as by the modern ecological characteristics of the region. The results indicate that the distinctive geological and climatic conditions and history of Northeastern Brazil strongly constrained the formation of aquatic faunas in coastal basins of Maranhão State.
DOI: 10.6084/m9.figshare.8324720.v1
title: The bony fishes (Teleostei) caught by industrial trawlers off the Brazilian North coast, with insights into its conservation

description: ABSTRACT The Brazilian North coast is one of the world’s most important shrimp fishery grounds, with a total area of approximately 223,000 km2. However, the available data on the diversity of fish caught by the region’s industrial trawler fleet are limited to the commercially-valuable species. This lacuna in the data on the region’s marine fish fauna is worrying, both for the management of stocks and the conservation of the local biodiversity. The present study was based on a comprehensive inventory of the teleost fishes captured by the industrial outrigger trawling operations off the North coast of Brazil. This inventory recorded 201 species belonging to 64 families and 20 orders, and revealed a unique fauna, characterized by 17 endemic species, and a mixture of estuarine-dependent and marine species, mainly associated with coral reefs. The Kernel density analysis indicated that the industrial trawling fleet operates within an important ecotone, which encompasses the transition zones of different fish communities found off the Brazilian North coast.
DOI: 10.6084/m9.figshare.8324705
title: Species or population? Systematic status of Vieja coatlicue (Teleostei: Cichlidae)

description: ABSTRACT Pacific and Atlantic-slope rivers of the Isthmus of Tehuantepec in Mexico contain two cichlid species of the genus Vieja relevant to the current study, V. zonata and V. coatlicue, respectively. The Atlantic-slope species was initially considered a population of uncertain taxonomic status and recently described as a distinct species based on three putatively diagnostic morphological characters. The objective of this study was to combine new and existing genetic data, along with reanalysis of morphological characters, to test the distinctiveness of V. coatlicue. Little genetic variability and no geographic structuring were recovered. Additionally, putatively diagnostic morphological character states were present across both species, failing to separate the forms. The synthesis of molecular and morphological data supports the recognition of V. coatlicue as a junior synonym of V. zonata.
DOI: 10.6084/m9.figshare.8324714.v1
title: Historical biogeography of fishes from coastal basins of Maranhão State, northeastern Brazil

description: ABSTRACT The Amazonian ichthyofauna is one of the most diverse in the world, yet fishes from the adjacent coastal basins of Maranhão State in Northeastern Brazil remain poorly known. We use phylogeographic, community phylogenetic and phylogenetic beta diversity methods to study the biogeographic history of fishes from the coastal basins of Maranhão State. We report a total of 160 fish species from the basins of the Maranhão region, representing a 93% increase over results of previous studies. All the fish species assemblages from Maranhão are polyphyletic, with only a few putative sister species pairs inhabiting the region. The modern watershed divides among Maranhão basins do not form substantial barriers to dispersal for freshwater fish species, and are more effectively modelled as biogeographic islands than as biogeographic provinces. In combination these results suggest that the Maranhão ichthyofauna was assembled under the influence of several macroevolutionary (extinction, dispersal) and landscape evolution processes, during the Miocene and Pliocene, as well as by the modern ecological characteristics of the region. The results indicate that the distinctive geological and climatic conditions and history of Northeastern Brazil strongly constrained the formation of aquatic faunas in coastal basins of Maranhão State.