cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57760/sciencedb.01885
title: CSI-LSTM Dataset
title: CSI-LSTM Dataset

description: Protein secondary structure provides rich structural information, hence the description and understanding of protein structure relies heavily on it. Identification or prediction of secondary structures therefore plays an important role in protein research. In protein NMR studies, it is more convenient to predict secondary structures from chemical shifts as compared to the traditional determination methods based on inter-nuclear distances provided by NOESY experiment. In recent years, there was a significant improvement observed in deep neural networks, which had been applied in many research fields. Here we proposed a deep neural network based on bidirectional long short term memory (biLSTM) to predict protein 3-state secondary structure using NMR chemical shifts of backbone nuclei. While comparing with the existing methods the proposed method showed better prediction accuracy. Based on the proposed method, a web server has been built to provide protein secondary structure prediction service.
description: Protein secondary structure provides rich structural information, hence the description and understanding of protein structure relies heavily on it. Identification or prediction of secondary structures therefore plays an important role in protein research. In protein NMR studies, it is more convenient to predict secondary structures from chemical shifts as compared to the traditional determination methods based on inter-nuclear distances provided by NOESY experiment. In recent years, there was a significant improvement observed in deep neural networks, which had been applied in many research fields. Here we proposed a deep neural network based on bidirectional long short term memory (biLSTM) to predict protein 3-state secondary structure using NMR chemical shifts of backbone nuclei. While comparing with the existing methods the proposed method showed better prediction accuracy. Based on the proposed method, a web server has been built to provide protein secondary structure prediction service.
DOI: 10.57760/sciencedb.01887
title: Convolution Optimized Density Clustering Algorithm for Image Segmentation
title: 面向图像分割的卷积密度聚类算法

description: In order to improve the usability of DBSCAN in the field of high-resolution image segmentation, according to the characteristics of digital images, an efficient DBSCAN based on three-dimensional convolution is proposed, and on this basis, a color image segmentation method is implemented. First, convolution is introduced into DBSCAN, three-dimensional convolution is used to obtain the core object, avoiding distance calculation and region retrieval, and reducing the time complexity of this step from the second order to a constant level. Then, the three-dimensional convolution is optimized based on dynamic programming, so that the convolution time is independent of the size of the convolution kernel. Finally, the neighborhood search range of the sample points is simplified according to the ordered core object set. Compared with the existing algorithms, the experimental results on the Berkeley BSD300 show that the algorithm is effective, the CH index and the time efficiency increase by 17% and 49% on average. The results of experiments using the remote sensing image set Mts-WH show that the computational efficiency of the algorithm is significantly improved. Compared with the DBSCAN optimized by the kD tree, the efficiency is increased by an average of 19 times, and the improvement effect is more obvious as the number of sample points increases. When the number of points exceeds 500 000, the efficiency is increased by 169 times.
description: In order to improve the usability of DBSCAN in the field of high-resolution image segmentation, according to the characteristics of digital images, an efficient DBSCAN based on three-dimensional convolution is proposed, and on this basis, a color image segmentation method is implemented. First, convolution is introduced into DBSCAN, three-dimensional convolution is used to obtain the core object, avoiding distance calculation and region retrieval, and reducing the time complexity of this step from the second order to a constant level. Then, the three-dimensional convolution is optimized based on dynamic programming, so that the convolution time is independent of the size of the convolution kernel. Finally, the neighborhood search range of the sample points is simplified according to the ordered core object set. Compared with the existing algorithms, the experimental results on the Berkeley BSD300 show that the algorithm is effective, the CH index and the time efficiency increase by 17% and 49% on average. The results of experiments using the remote sensing image set Mts-WH show that the computational efficiency of the algorithm is significantly improved. Compared with the DBSCAN optimized by the kD tree, the efficiency is increased by an average of 19 times, and the improvement effect is more obvious as the number of sample points increases. When the number of points exceeds 500 000, the efficiency is increased by 169 times.
DOI: 10.57760/sciencedb.01890
title: Dynamic topics management in pub/sub systems over MANETs - Simulation results data
title: Dynamic topics management in pub/sub systems over MANETs - Simulation results data

description: This dataset contains the results obtained during the simulations carried out relating to an article titled "Dynamic topics management in publish/subscribe systems over mobile ad hoc networks"
description: This dataset contains the results obtained during the simulations carried out relating to an article titled "Dynamic topics management in publish/subscribe systems over mobile ad hoc networks"
DOI: 10.57760/sciencedb.01891
title: Experimental data of carbon dioxide hydrate phase equilibrium in inhibitors
title: 二氧化碳水合物抑制剂相平衡实验数据

description: The influence of mixed inhibitors comprising an electrolyte (selected from sodium chloride and calcium chloride) mixed with an alcohol (selected from methanol, ethanol, ethylene glycol, n-propanol, and isopropanol) on the thermodynamic properties of carbon dioxide hydrate was investigated. Observations on CO2-H2ONaCl-alcohol system were performed using high-pressure optical cell (HPOC) technology. The experiments were carried out at low temperatures of 263–283 K and high pressures up to 4 MPa, focusing on the phase equilibrium of liquid, hydrate, and carbon dioxide gas in HPOC.
description: The influence of mixed inhibitors comprising an electrolyte (selected from sodium chloride and calcium chloride) mixed with an alcohol (selected from methanol, ethanol, ethylene glycol, n-propanol, and isopropanol) on the thermodynamic properties of carbon dioxide hydrate was investigated. Observations on CO2-H2ONaCl-alcohol system were performed using high-pressure optical cell (HPOC) technology. The experiments were carried out at low temperatures of 263–283 K and high pressures up to 4 MPa, focusing on the phase equilibrium of liquid, hydrate, and carbon dioxide gas in HPOC.
DOI: 10.57760/sciencedb.01892
title: Phase equilibrium data for carbon dioxide hydrate in systems containing promoters
title: 含促进剂体系中二氧化碳水合物相平衡数据

description: CO2 hydrates were formed in presence of THF and TBAB in high-pressure optical cell. The CO2-THF sII hydrate tended to form prismatic shaped crystals, and during the decomposition, the THF molecule separated from the clathrate cage with showing an internal collapse on the crystal scale. The CO2-TBAB semi-clathrate hydrate is columnar in shape and had a similar decomposition process. This work might help to comprehend CO2 hydrate storage technology and could give theoretical basis for subsequent applications in the sector.
description: CO2 hydrates were formed in presence of THF and TBAB in high-pressure optical cell. The CO2-THF sII hydrate tended to form prismatic shaped crystals, and during the decomposition, the THF molecule separated from the clathrate cage with showing an internal collapse on the crystal scale. The CO2-TBAB semi-clathrate hydrate is columnar in shape and had a similar decomposition process. This work might help to comprehend CO2 hydrate storage technology and could give theoretical basis for subsequent applications in the sector.
DOI: 10.57760/sciencedb.01893
title: Surgical Managements of Upper Eyelid Retraction Caused by Overcorrection of Blepharoptosis and Improper Blepharoplasty: A Minimal Damage Correction Strategy
title: Surgical Managements of Upper Eyelid Retraction Caused by Overcorrection of Blepharoptosis and Improper Blepharoplasty: A Minimal Damage Correction Strategy

description: We introduced a strategy which enables to achieve minimal damage to the orbital tissues for correction of different severity of upper eyelid retraction caused by blepharoptosis overcorrection and improper blepharoplasty.
description: We introduced a strategy which enables to achieve minimal damage to the orbital tissues for correction of different severity of upper eyelid retraction caused by blepharoptosis overcorrection and improper blepharoplasty.
DOI: 10.57760/sciencedb.01904
title: The test data of a miniature filamentless X-ray tube
title: 一个小型无阴极x射线管的测试数据

description: Feasibility data analysis of a new type of non cathode X-ray tube improved from ordinary X-ray tube 
description: Feasibility data analysis of a new type of non cathode X-ray tube improved from ordinary X-ray tube
DOI: 10.57760/sciencedb.01905
title: Raw Data for the article "Rolling back human pluripotent stem cells to an eight-cell embryo-like stage"
title: Raw Data for the article "Rolling back human pluripotent stem cells to an eight-cell embryo-like stage"

description: Human pluripotent stem cells (PSCs) are a good proxy for studying early developmental processes and hold tremendous promise for regenerative medicine. Yet, their spectrum and potency remain less well characterized than in rodents, thwarting application. Particularly, in contrast to their mouse counterparts, human totipotent-like cells corresponding to the time of zygote genome activation (ZGA) or eight-cell (8C) stage have not yet been generated. Here, we report a quick and controllable, exogenous factor-free, methodology for producing cells transcriptionally and epigenetically similar to 8C embryonic cells from human PSCs. Single-cell multiomics characterization identified key molecular events associated with this conversion, including a partial shutdown of the pluripotency network. Loss-of-function experiments also showed fundamental roles for two factors highly enriched in 8C human embryos, DPPA3/STELLA (a master regulator of DNA methylation in oocytes) and TPRX1 (an ETCHbox family transcription factor lacking in mouse). DPPA3/STELLA is necessary for inducing passive DNA demethylation throughout the entire conversion process, whereas TPRX1 is a key regulator of the 8C-like cell (8CLC) conversion. Our approach provides a unique experimental window into the early events of human embryogenesis, which may be instrumental for producing functional artificial blastocysts (blastoids) and high-contribution interspecies chimeras.
description: Human pluripotent stem cells (PSCs) are a good proxy for studying early developmental processes and hold tremendous promise for regenerative medicine. Yet, their spectrum and potency remain less well characterized than in rodents, thwarting application. Particularly, in contrast to their mouse counterparts, human totipotent-like cells corresponding to the time of zygote genome activation (ZGA) or eight-cell (8C) stage have not yet been generated. Here, we report a quick and controllable, exogenous factor-free, methodology for producing cells transcriptionally and epigenetically similar to 8C embryonic cells from human PSCs. Single-cell multiomics characterization identified key molecular events associated with this conversion, including a partial shutdown of the pluripotency network. Loss-of-function experiments also showed fundamental roles for two factors highly enriched in 8C human embryos, DPPA3/STELLA (a master regulator of DNA methylation in oocytes) and TPRX1 (an ETCHbox family transcription factor lacking in mouse). DPPA3/STELLA is necessary for inducing passive DNA demethylation throughout the entire conversion process, whereas TPRX1 is a key regulator of the 8C-like cell (8CLC) conversion. Our approach provides a unique experimental window into the early events of human embryogenesis, which may be instrumental for producing functional artificial blastocysts (blastoids) and high-contribution interspecies chimeras.
DOI: 10.57760/sciencedb.o00014.00002
title: Global terrestrial evapotranspiration based on MODIS land products and CERES shortwave radiation
title: 基于MODIS陆面数据集和CERES下行短波辐射的全球陆面蒸散发数据集

description: A variation of the MODIS standard evapotranspiration algorithm was used to calculate the daily 0.05 degree global terrestrial evapotranspiration. The input data includes: the 0.05 degree Moderate Resolution Imaging Spectroradiometer Land products: land surface temperature, albedo, NDVI, reflectance and land cover, and hourly downwards shortwave radiation from CERES with 1 degree. 
description: A variation of the MODIS standard evapotranspiration algorithm was used to calculate the daily 0.05 degree global terrestrial evapotranspiration. The input data includes: the 0.05 degree Moderate Resolution Imaging Spectroradiometer Land products: land surface temperature, albedo, NDVI, reflectance and land cover, and hourly downwards shortwave radiation from CERES with 1 degree.
DOI: 10.57760/sciencedb.01913
title: Antistatic PVC-graphene composite
title: PVC-石墨烯抗静电复合材料

description: The article involves the original pictures and charts 
description: The article involves the original pictures and charts
DOI: 10.57760/sciencedb.01915
title: ToF-SIMS dataset of sulphide minerals treated with sodium isobutyl xanthate
title: ToF-SIMS dataset of sulphide minerals treated with sodium isobutyl xanthate

description: Background: The chemical properties of the mineral/solution interface have a decisive influence on the flotation behavior of minerals. The aim of this study was to investigate the chemical composition within the mineral/solution interface of sulfide minerals treated with xanthate by ToF-SIMS.Methods: Chalcopyrite, chalcopyrite-pyrite mixture, and chalcopyrite-galena mixture were reacted in 0.1 mM sodium isobutyl xanthate solution at natural pH, then centrifuged, fast-frozen, and characterized with a ToF-SIMS V spectrometer (ION-TOF GmbH, Münster, Germany) at –125 °C (Cryo-ToF-SIMS) in comparison with the samples thawed in vacuum and measured at room temperature (RT-ToF-SIMS).Conclusion: The study confirmed the volatility of dixanthogen under the high vacuum room temperature conditions, and found that dixanthogen was the predominant species of xanthate adsorption products on chalcopyrite and pyrite, while that of galena was lead isobutyl xanthate. In particular, due to the interaction effects between sulfide minerals, the formation of dixanthogen at the mineral/solution interface of chalcopyrite was promoted and inhibited by pyrite and galena, respectively.Note: Using the software Surface Lab software (ION-TOF GmbH, Münster, Germany) to open the data.
description: Background: The chemical properties of the mineral/solution interface have a decisive influence on the flotation behavior of minerals. The aim of this study was to investigate the chemical composition within the mineral/solution interface of sulfide minerals treated with xanthate by ToF-SIMS.Methods: Chalcopyrite, chalcopyrite-pyrite mixture, and chalcopyrite-galena mixture were reacted in 0.1 mM sodium isobutyl xanthate solution at natural pH, then centrifuged, fast-frozen, and characterized with a ToF-SIMS V spectrometer (ION-TOF GmbH, Münster, Germany) at –125 °C (Cryo-ToF-SIMS) in comparison with the samples thawed in vacuum and measured at room temperature (RT-ToF-SIMS).Conclusion: The study confirmed the volatility of dixanthogen under the high vacuum room temperature conditions, and found that dixanthogen was the predominant species of xanthate adsorption products on chalcopyrite and pyrite, while that of galena was lead isobutyl xanthate. In particular, due to the interaction effects between sulfide minerals, the formation of dixanthogen at the mineral/solution interface of chalcopyrite was promoted and inhibited by pyrite and galena, respectively.Note: Using the software Surface Lab software (ION-TOF GmbH, Münster, Germany) to open the data.
DOI: 10.57760/sciencedb.j00139.00016
title: Diversity of reptile sex chromosome evolution revealed by cytogenetic and linked-read sequencing
title: 根据细胞遗传学和链读测序技术分析爬行动物性别染色体进化的多样性

description: Genome assembly was preformed by reads from BGI stLFR , and later annotated with EVM.
description: Genome assembly was preformed by reads from BGI stLFR , and later annotated with EVM.
DOI: 10.57760/sciencedb.01919
title: Diversity of reptile sex chromosome evolution revealed by cytogenetic and linked-read sequencing
title: 根据细胞遗传学和链读测序技术分析爬行动物性染色体进化的多样性

description: DNA SEQ of four reptile sex chromosomes and RNA SEQ of male and female gonads and somatic tissues 
description: DNA SEQ of four reptile sex chromosomes and RNA SEQ of male and female gonads and somatic tissues
DOI: 10.57760/sciencedb.j00001.00470
title: A multi-modal image dataset for peach detection
title: 毛桃多模态图像目标检测数据集

description: Reliable and accurate detection of fruits during the whole growth period has always been one difficult and important bottleneck for achieving precise, intelligent and efficient orchard management. In order to deal with the insufficiency of sample scale and diversity in actual production scenes, this dataset is constructed focusing on the application of fruit detection in typical orchard operation stages, such as fruit thinning, bagging and picking operations. Specifically, through in-field shooting and data post-processing, the multi-modal image dataset for peach detection is released, which covers the acquisition, classification, labeling, storage and use of multi-modal peach images during fruit thinning, bagging and picking stages under the different natural circumstances, including complex weather, illumination and occlusion. What’s more, the modalities of the dataset get involved in the types of visible light, depth and infrared with the total storage amount of 8.27GB, providing fundamental and valuable image resources for the following research areas, e.g., multi-modal image data fusion and object detection. In addition, the dataset can also be used as a standard library for deep learning modeling in big data environment with the important practical application value for promoting the research of fruit object detection.
description: Reliable and accurate detection of fruits during the whole growth period has always been one difficult and important bottleneck for achieving precise, intelligent and efficient orchard management. In order to deal with the insufficiency of sample scale and diversity in actual production scenes, this dataset is constructed focusing on the application of fruit detection in typical orchard operation stages, such as fruit thinning, bagging and picking operations. Specifically, through in-field shooting and data post-processing, the multi-modal image dataset for peach detection is released, which covers the acquisition, classification, labeling, storage and use of multi-modal peach images during fruit thinning, bagging and picking stages under the different natural circumstances, including complex weather, illumination and occlusion. What’s more, the modalities of the dataset get involved in the types of visible light, depth and infrared with the total storage amount of 8.27GB, providing fundamental and valuable image resources for the following research areas, e.g., multi-modal image data fusion and object detection. In addition, the dataset can also be used as a standard library for deep learning modeling in big data environment with the important practical application value for promoting the research of fruit object detection.
DOI: 10.57760/sciencedb.01920
title: antifungal mechanism of piperine
title: antifungal mechanism of piperine

description: Antifungal activity of piperine against phytopathogen
description: Antifungal activity of piperine against phytopathogen
DOI: 10.57760/sciencedb.o00009.00043
title: The 1:2,500,000-Scale Global Tectonic Map of the Moon
title: The 1:2,500,000-Scale Global Tectonic Map of the Moon

description: The tectonic evolution of the Moon is driven by both endogenic (e.g., magmatism) and exogenic (e.g., meteorite impact) forces. A tectonic map of the Moon provides key information about the spatiotemporal distribution of structures and tectonic units. The map in this repository is the first 1:2,500,000-scale lunar global tectonic map, which incorporates the most comprehensive knowledge about the lunar tectonics by taking advantage of the latest exploration results and scientific findings. An updated lunar time scale is employed in this map to better reflect the dynamic evolution of the lunar tectonics. The map provides a state-of-the-art illustration of structures and tectonic units of different periods, the distributions of 9 types of linear structures, including 18976 elements (358 inferred deep faults, 1335 shallow faults, 11046 wrinkle ridges, 474 rillles, 816 grabens, 2583 crater-floor fractures, 227 lobate scarps, 1882 impact fractures and 255 impact crater chains), and 5 types of circular structures, including 2501 elements (271 volcanic vents, 47 domes, 46 mascons, 3460 impact craters and 81 impact basins). The map is free to use for non-commercial forms including scientific research and science promotion under proper citation. This data is provided for understanding the associated research paper. The tectonic map will be officially published in both Chinese and English copies by the Geological Publishing House after being proofed.
description: The tectonic evolution of the Moon is driven by both endogenic (e.g., magmatism) and exogenic (e.g., meteorite impact) forces. A tectonic map of the Moon provides key information about the spatiotemporal distribution of structures and tectonic units. The map in this repository is the first 1:2,500,000-scale lunar global tectonic map, which incorporates the most comprehensive knowledge about the lunar tectonics by taking advantage of the latest exploration results and scientific findings. An updated lunar time scale is employed in this map to better reflect the dynamic evolution of the lunar tectonics. The map provides a state-of-the-art illustration of structures and tectonic units of different periods, the distributions of 9 types of linear structures, including 18976 elements (358 inferred deep faults, 1335 shallow faults, 11046 wrinkle ridges, 474 rillles, 816 grabens, 2583 crater-floor fractures, 227 lobate scarps, 1882 impact fractures and 255 impact crater chains), and 5 types of circular structures, including 2501 elements (271 volcanic vents, 47 domes, 46 mascons, 3460 impact craters and 81 impact basins). The map is free to use for non-commercial forms including scientific research and science promotion under proper citation. This data is provided for understanding the associated research paper. The tectonic map will be officially published in both Chinese and English copies by the Geological Publishing House after being proofed.
DOI: 10.57760/sciencedb.01923
title: Conserved responses of nutrient resorption to extreme drought in a grassland: the role of community compositional changes
title: Conserved responses of nutrient resorption to extreme drought in a grassland: the role of community compositional changes

description: Data for an article published by Functional Ecology titled "Conserved responses of nutrient resorption to extreme drought in a grassland: the role of community compositional changes"
description: Data for an article published by Functional Ecology titled "Conserved responses of nutrient resorption to extreme drought in a grassland: the role of community compositional changes"