Spectral data of different rocks and minerals usually show different waveforms and absorption characteristics in visible and infrared wavelengths,which allow identification of mineral species and composition.However,m...Spectral data of different rocks and minerals usually show different waveforms and absorption characteristics in visible and infrared wavelengths,which allow identification of mineral species and composition.However,massive spectra of rock/mineral on earth surface were scattered across a variety of spectral libraries world-wide,exhibiting inconsistent data structures and measurement conditions.To advance the data interoperability and the data usability,we collected data and information from six shared libraries with different format and measured field specimen in laboratory to establish an integrated rock spectral library(RockSL).Both the data quality of spectral curves and the integrity of descrip-tive metadata are considered in the integrated RockSL to be pub-lished in GitHub open-source repository.RockSL contains not only the big spectral dataset of rocks and minerals for data service(i.e.data sharing and retrieval)and geological discrimination,but also the characteristics dataset of key parameters/metadata(e.g.particle size,mineral composition and full-band signature,etc.)for explora-tion of data mining and knowledge discovery.We hope that more researchers will join to improve the availability and practical value of RockSL for remote sensing community.This article introduces the database structure and data processing workflow,and demon-strates a matching service and several examples of characteristic datasets of RockSL.展开更多
Since its launch last year, the Chinese Government Public Information Online(CGPIO) platform's basic construction has developed rapidly. This paper describes the technology and service status of the platform, anal...Since its launch last year, the Chinese Government Public Information Online(CGPIO) platform's basic construction has developed rapidly. This paper describes the technology and service status of the platform, analyzes its problems, and details the future development of the alliance platform in the future.展开更多
Sulfide dioxide(SO2) is often released during the combustion processes of fossil fuels. An integrated bioreactor with two sections, namely, a suspended zone(SZ) and immobilized zone(IZ), was applied to treat SO2...Sulfide dioxide(SO2) is often released during the combustion processes of fossil fuels. An integrated bioreactor with two sections, namely, a suspended zone(SZ) and immobilized zone(IZ), was applied to treat SO2 for 6 months. Sampling ports were set in both sections to investigate the performance and microbial characteristics of the integrated bioreactor. SO2 was effectively removed by the synergistic effect of the SZ and IZ, and more than 85%removal efficiency was achieved at steady state. The average elimination capacity of SO2 in the bioreactor was 2.80 g/(m3·hr) for the SZ and 1.50 g/(m3· hr) for the IZ. Most SO2 was eliminated in the SZ. The liquid level of the SZ and the water content ratio of the packing material in the IZ affected SO2 removal efficiency. The SZ served a key function not only in SO2 elimination, but also in moisture maintenance for the IZ. The desired water content in IZ could be feasibly maintained without any additional pre-humidification facilities. Clone libraries of 16 S r DNA directly amplified from the DNA of each sample were constructed and sequenced to analyze the community composition and diversity in the individual zones.The desulfurization bacteria dominated both zones. Paenibacillus sp. was present in both zones, whereas Ralstonia sp. existed only in the SZ. The transfer of SO2 to the SZ involved dissolution in the nutrient solution and biodegradation by the sulfur-oxidizing bacteria.This work presents a potential biological treatment method for waste gases containing hydrophilic compounds.展开更多
Coronavirus disease 2019(COVID-19)has impacted almost every part of human lifeworldwide,posing amassive threat to human health.The lack of time for new drug discovery and the urgent need for rapid disease control to r...Coronavirus disease 2019(COVID-19)has impacted almost every part of human lifeworldwide,posing amassive threat to human health.The lack of time for new drug discovery and the urgent need for rapid disease control to reduce mortality have led to a search for quick and effective alternatives to novel therapeutics,for example drug repurposing.To identify potentially repurposable drugs,we employed a systematic approach to mine candidates from U.S.FDA-approved drugs and preclinical small-molecule compounds by integrating gene expression perturbation data for chemicals from the Library of Integrated Network-Based Cellular Signatures project with a publicly available single-cell RNA sequencing dataset from patients withmild and severe COVID-19(GEO:GSE145926,public data available and accessed on 22 April 2020).We identified 281 FDA-approved drugs that have the potential to be effective against severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection,16 of which are currently undergoing clinical trials to evaluate their efficacy against COVID-19.We experimentally tested and demonstrated the inhibitory effects of tyrphostin-AG-1478 and brefeldin-a,two chemical inhibitors of glycosylation(a post-translational modification)on the replication of the single-stranded ribonucleic acid(ssRNA)virus influenza A virus as well as on the transcription and translation of host cell cytokines and their regulators(IFNs and ISGs).In conclusion,we have identified and experimentally validated repurposable anti-SARS-CoV-2 and IAV drugs using a systems biology approach,which may have the potential for treating these viral infections and their complications(sepsis).展开更多
基金This work was jointly supported by the Key Program of National Nature Science Foundation of China[41930108]Basic Science Center by the National Natural Science Foundation of China[72088101]+1 种基金the innovation leading program of Central South University under Grant 506030101the Talents gathering program of Hunan Province China under Grant People’s Government of Hunan province People’s Government of Hunan province 2018RS3013.
文摘Spectral data of different rocks and minerals usually show different waveforms and absorption characteristics in visible and infrared wavelengths,which allow identification of mineral species and composition.However,massive spectra of rock/mineral on earth surface were scattered across a variety of spectral libraries world-wide,exhibiting inconsistent data structures and measurement conditions.To advance the data interoperability and the data usability,we collected data and information from six shared libraries with different format and measured field specimen in laboratory to establish an integrated rock spectral library(RockSL).Both the data quality of spectral curves and the integrity of descrip-tive metadata are considered in the integrated RockSL to be pub-lished in GitHub open-source repository.RockSL contains not only the big spectral dataset of rocks and minerals for data service(i.e.data sharing and retrieval)and geological discrimination,but also the characteristics dataset of key parameters/metadata(e.g.particle size,mineral composition and full-band signature,etc.)for explora-tion of data mining and knowledge discovery.We hope that more researchers will join to improve the availability and practical value of RockSL for remote sensing community.This article introduces the database structure and data processing workflow,and demon-strates a matching service and several examples of characteristic datasets of RockSL.
文摘Since its launch last year, the Chinese Government Public Information Online(CGPIO) platform's basic construction has developed rapidly. This paper describes the technology and service status of the platform, analyzes its problems, and details the future development of the alliance platform in the future.
基金financially supported by the National Natural Science Foundation of China (No. 51221892)the Major Science and Technology Program for Water Pollution Control and Treatment (No. 2010ZX07319-001-03)
文摘Sulfide dioxide(SO2) is often released during the combustion processes of fossil fuels. An integrated bioreactor with two sections, namely, a suspended zone(SZ) and immobilized zone(IZ), was applied to treat SO2 for 6 months. Sampling ports were set in both sections to investigate the performance and microbial characteristics of the integrated bioreactor. SO2 was effectively removed by the synergistic effect of the SZ and IZ, and more than 85%removal efficiency was achieved at steady state. The average elimination capacity of SO2 in the bioreactor was 2.80 g/(m3·hr) for the SZ and 1.50 g/(m3· hr) for the IZ. Most SO2 was eliminated in the SZ. The liquid level of the SZ and the water content ratio of the packing material in the IZ affected SO2 removal efficiency. The SZ served a key function not only in SO2 elimination, but also in moisture maintenance for the IZ. The desired water content in IZ could be feasibly maintained without any additional pre-humidification facilities. Clone libraries of 16 S r DNA directly amplified from the DNA of each sample were constructed and sequenced to analyze the community composition and diversity in the individual zones.The desulfurization bacteria dominated both zones. Paenibacillus sp. was present in both zones, whereas Ralstonia sp. existed only in the SZ. The transfer of SO2 to the SZ involved dissolution in the nutrient solution and biodegradation by the sulfur-oxidizing bacteria.This work presents a potential biological treatment method for waste gases containing hydrophilic compounds.
基金The work was partially supported by the National Institutes of Health(NIH,grants No.P20GM113123 to J.H.,R01AI138203 and AI109317 to M.W.)the Science and Technology Department of Sichuan Province(grant No.2019YJ0050)to C.LThe funders of the study had no role in study design,data collection,data analysis,data interpretation,or writing of the paper.Influenza A virus(IAV,Puerto Rico/8/1934(H1N1))viral stocks were provided by the laboratory of Dr.NadeemKhan(University of North Dakota).Figure 1 was created by modifying illustrations provided by Servier Medical Art(SMART)licensed under a Creative Commons Attribution 3.0 Unported License(smart.servier.com)and Vecteezy.com.
文摘Coronavirus disease 2019(COVID-19)has impacted almost every part of human lifeworldwide,posing amassive threat to human health.The lack of time for new drug discovery and the urgent need for rapid disease control to reduce mortality have led to a search for quick and effective alternatives to novel therapeutics,for example drug repurposing.To identify potentially repurposable drugs,we employed a systematic approach to mine candidates from U.S.FDA-approved drugs and preclinical small-molecule compounds by integrating gene expression perturbation data for chemicals from the Library of Integrated Network-Based Cellular Signatures project with a publicly available single-cell RNA sequencing dataset from patients withmild and severe COVID-19(GEO:GSE145926,public data available and accessed on 22 April 2020).We identified 281 FDA-approved drugs that have the potential to be effective against severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection,16 of which are currently undergoing clinical trials to evaluate their efficacy against COVID-19.We experimentally tested and demonstrated the inhibitory effects of tyrphostin-AG-1478 and brefeldin-a,two chemical inhibitors of glycosylation(a post-translational modification)on the replication of the single-stranded ribonucleic acid(ssRNA)virus influenza A virus as well as on the transcription and translation of host cell cytokines and their regulators(IFNs and ISGs).In conclusion,we have identified and experimentally validated repurposable anti-SARS-CoV-2 and IAV drugs using a systems biology approach,which may have the potential for treating these viral infections and their complications(sepsis).