Provincial agricultural research institutes are local agricultural research institutions.They are familiar with local agricultural and ru-ral conditions,and have advantages in scientific and technological achievements...Provincial agricultural research institutes are local agricultural research institutions.They are familiar with local agricultural and ru-ral conditions,and have advantages in scientific and technological achievements,technical reserves and the construction of scientific and tech-nological talent support systems.In the process of promoting the implementation of the rural revitalization strategy,all the responsibilities and obligations of the agricultural research institute are to identify the focus of scientific and technological support and talent support in rural revital-ization,and break the bottleneck and constraints of rural revitalization.By sorting out the current situation of agricultural science and technolo-gy experts serving the grassroots in the problem of talent support for rural revitalization,this paper analyzed the existing problems and put for-ward countermeasures and recommendations.展开更多
Beijing is renowned for the breathtaking scenery of falling leaves,best seen in October when autumn arrives.Tom Jalio,a journalist with The Star in Kenya,was mesmerised by the view when he arrived in the city to atten...Beijing is renowned for the breathtaking scenery of falling leaves,best seen in October when autumn arrives.Tom Jalio,a journalist with The Star in Kenya,was mesmerised by the view when he arrived in the city to attend the 2023 Beijing International Media Forum.The forum discussed protecting and using world cultural heritage while fostering mutual learning among civilisations.展开更多
With the theme Connection for a Better Future,the fourth ASEAN-China Friendship and Cooperation Short Video Contest kicked o!in Beijing on 14 September both online and o#ine.The competition,co-sponsored by the Mission...With the theme Connection for a Better Future,the fourth ASEAN-China Friendship and Cooperation Short Video Contest kicked o!in Beijing on 14 September both online and o#ine.The competition,co-sponsored by the Mission of China to ASEAN,the Permanent Mission of Myanmar to ASEAN,ASEAN Secretariat,National Radio and Television Administration of China,China International Communications Group(CICG),the Department of Asian A!airs of the Ministry of Foreign A!展开更多
As the first industrial park built by China in cooperation with a foreign government,Suzhou Industrial Park has become an important window for China’s reform and opening-up and a successful example of international c...As the first industrial park built by China in cooperation with a foreign government,Suzhou Industrial Park has become an important window for China’s reform and opening-up and a successful example of international cooperation.展开更多
BACKGROUND Psychological problems affect economic development.However,there is a huge gap between mental health service resources and mental health service needs.Existing mental health service technology and platforms...BACKGROUND Psychological problems affect economic development.However,there is a huge gap between mental health service resources and mental health service needs.Existing mental health service technology and platforms cannot meet all the diverse mental health needs of people.Smart medicine is a new medical system based online that can effectively improve the quality and efficiency of medical services and make mental health services accessible.AIM To explore the level of intelligent medical use among young and middle-aged people and its correlation with psychological factors.METHODS Convenience sampling was used to select 200 young and middle-aged patients with medical experience at the Third People's Hospital of Chengdu between January 2022 and January 2023 as the research subjects.The general condition Questionnaire,Eysenck Personality Questionnaire,Symptom Checklist-90,General Health Questionnaire,and Smart Medical Service Use Intention Questionnaire were used to collect data.Pearson’s correlation was used to analyze the correlation between the participants’willingness to use smart medical services and their personality characteristics,psychological symptoms,and mental health.RESULTS The results revealed that the mental health of young and middle-aged people was poor,and some had psycho-logical problems such as anxiety,depression,and physical discomfort.Familiarity,acceptance,and usage of smart healthcare in this population are at a medium level,and these levels correlate with psychological characteristics.Acceptance was positively correlated with E,and negatively correlated with P,anxiety,fear,anxiety/insomnia,and social dysfunction.The degree of use was negatively correlated with P,obsessive-compulsive symptoms,depression,anxiety,hostility,paranoia,and somatic symptoms.CONCLUSION The familiarity,acceptance,and usage of smart medical services among the middle-aged and young groups are related to various psychological characteristics.展开更多
On-orbit servicing, such as spacecraft maintenance, on-orbit assembly, refueling, and de-orbiting, can reduce the cost of space missions, improve the performance of spacecraft, and extend its life span. The relative s...On-orbit servicing, such as spacecraft maintenance, on-orbit assembly, refueling, and de-orbiting, can reduce the cost of space missions, improve the performance of spacecraft, and extend its life span. The relative state between the servicing and target spacecraft is vital for on-orbit servicing missions, especially the final approaching stage. The major challenge of this stage is that the observed features of the target are incomplete or are constantly changing due to the short distance and limited Field of View (FOV) of camera. Different from cooperative spacecraft, non-cooperative target does not have artificial feature markers. Therefore, contour features, including triangle supports of solar array, docking ring, and corner points of the spacecraft body, are used as the measuring features. To overcome the drawback of FOV limitation and imaging ambiguity of the camera, a "selfie stick" structure and a self-calibration strategy were implemented, ensuring that part of the contour features could be observed precisely when the two spacecraft approached each other. The observed features were constantly changing as the relative distance shortened. It was difficult to build a unified measurement model for different types of features, including points, line segments, and circle. Therefore, dual quaternion was implemented to model the relative dynamics and measuring features. With the consideration of state uncertainty of the target, a fuzzy adaptive strong tracking filter( FASTF) combining fuzzy logic adaptive controller (FLAC) with strong tracking filter(STF) was designed to robustly estimate the relative states between the servicing spacecraft and the target. Finally, the effectiveness of the strategy was verified by mathematical simulation. The achievement of this research provides a theoretical and technical foundation for future on-orbit servicing missions.展开更多
The mechanisms for the regulation of synaptic dopamine （DA） include its release from presynaptic vesicles, its interaction with post-synaptic and pre-synaptic DA receptors, the reuptake of DA, via dopamine transport...The mechanisms for the regulation of synaptic dopamine （DA） include its release from presynaptic vesicles, its interaction with post-synaptic and pre-synaptic DA receptors, the reuptake of DA, via dopamine transporter （DAT）, the diffusion of DA and its metabolism by mono-amine oxidase （MAO） and cate- chol-O-methyl transferase （COMT）. DA controls complex and specialized functions including, movements, behavior, mood, perception, reward, and more recently, neurogenesis （Popolo et al., 2004; Reimer et al., 2013） and neuroregeneration （Hoglinger et al., 2004; Yang et al., 2008）. These functions are varied and of high fidelity. Movement, as an example, requires regulatory mechanisms for initiating, stopping, slowing-down speed- ing-up, changing directions, for governing the relentless urges to move in the young and sedentariness in the old as well as in motor-freezing, catalepsy, tremor and stereotypy.展开更多
AT the beginning of this year,people around the globe had a multitude of reasons to expect 2020 to be a super year for biodiversity and action on climate change emergencies.The year 2020 marks the 75th anniversary of ...AT the beginning of this year,people around the globe had a multitude of reasons to expect 2020 to be a super year for biodiversity and action on climate change emergencies.The year 2020 marks the 75th anniversary of the United Nations,the first UN summit on biodiversity at the level of heads of state and government,the 26th session of the Conference of the Parties of the UN Framework Convention on Climate Change(UNFCCC),and the second extraordinary meeting of the Conference of the Parties to the Convention on Biological Diversity(CBD).展开更多
China Petroleum Technology & Development Corporation (CPTDC), a wholly owned subsidiary company of China National Petroleum Corporation (CNPC), is China's largest multinational company specializing in the manu...China Petroleum Technology & Development Corporation (CPTDC), a wholly owned subsidiary company of China National Petroleum Corporation (CNPC), is China's largest multinational company specializing in the manufacturing and supply of petroleum and petrochemical material, equipment and technology.展开更多
Theoriginal vversion of this article unfortunately contained a mistakee.The institution number of the author Huang-ming CAO was incorrect.The corrected one is Huang-ming CAO^(3).
Zambia takes measures to protect water resources and ensure ecological progress Africa is a haven of excellent natural conditions and is rich in freshwater bodies with great potential to revamp its socio-economic deve...Zambia takes measures to protect water resources and ensure ecological progress Africa is a haven of excellent natural conditions and is rich in freshwater bodies with great potential to revamp its socio-economic development.展开更多
IT came as no surprise to the outside world when on November 15 the long- speculated lineup of the new leadership of the Communist Party of China （CPC） was announced. Xi Jinping, newly-elect- ed General Secretary of...IT came as no surprise to the outside world when on November 15 the long- speculated lineup of the new leadership of the Communist Party of China （CPC） was announced. Xi Jinping, newly-elect- ed General Secretary of the Party, and hi, colleagues made their debut before the press, one day after the conclusion of the 18th CPC National Congress.展开更多
Li Na’s historic French Open tennis win provides a boost for China’s sports market spending FOR the past few weeks,Mao Mao has been battling to make tennis court reservations.Mao,a sports fanatic,has gotten used to ...Li Na’s historic French Open tennis win provides a boost for China’s sports market spending FOR the past few weeks,Mao Mao has been battling to make tennis court reservations.Mao,a sports fanatic,has gotten used to spending two hours every weekend playing tennis with his friends. But Mao later found that the phone lines展开更多
GF-14 satellite is a new generation of sub-meter stereo surveying and mapping satellite in China,carrying dual-line array stereo mapping cameras to achieve 1∶10000 scale topographic mapping without Ground Control Poi...GF-14 satellite is a new generation of sub-meter stereo surveying and mapping satellite in China,carrying dual-line array stereo mapping cameras to achieve 1∶10000 scale topographic mapping without Ground Control Points(GCPs).In fact,space-based high-precision mapping without GCPs is a challenging task that depends on the close cooperation of several payloads and links,of which on-orbit geometric calibration is one of the most critical links.In this paper,the on-orbit geometric calibration of the dual-line array cameras of GF-14 satellite was performed using the control points collected in the high-precision digital calibration field,and the calibration parameters of the dual-line array cameras were solved as a whole by alternate iterations of forward and backward intersection.On this basis,the location accuracy of the stereo images using the calibration parameters was preliminarily evaluated by using several test fields around the world.The evaluation result shows that the direct forward intersection accuracy of GF-14 satellite images without GCPs after on-orbit geometric calibration reaches 2.34 meters(RMS)in plane and 1.97 meters(RMS)in elevation.展开更多
"Parts of China have been suffering from sustained storms which have caused disasters in several provinces. Flood prevention authorities are under considerable stress. China Central Meteorological Observatory has..."Parts of China have been suffering from sustained storms which have caused disasters in several provinces. Flood prevention authorities are under considerable stress. China Central Meteorological Observatory has issued a blue alert and it is forecasted that a broader area of South China will be stricken by storms in the coming days." Weather forecast information broadcasted by China Central Television (CCTV) is important for people to plan their outgoing schedules and展开更多
基金Supported by the Program of Hebei Provincial Department of Human Resources and Social Security(JRSHZ-2023-02190).
文摘Provincial agricultural research institutes are local agricultural research institutions.They are familiar with local agricultural and ru-ral conditions,and have advantages in scientific and technological achievements,technical reserves and the construction of scientific and tech-nological talent support systems.In the process of promoting the implementation of the rural revitalization strategy,all the responsibilities and obligations of the agricultural research institute are to identify the focus of scientific and technological support and talent support in rural revital-ization,and break the bottleneck and constraints of rural revitalization.By sorting out the current situation of agricultural science and technolo-gy experts serving the grassroots in the problem of talent support for rural revitalization,this paper analyzed the existing problems and put for-ward countermeasures and recommendations.
文摘Beijing is renowned for the breathtaking scenery of falling leaves,best seen in October when autumn arrives.Tom Jalio,a journalist with The Star in Kenya,was mesmerised by the view when he arrived in the city to attend the 2023 Beijing International Media Forum.The forum discussed protecting and using world cultural heritage while fostering mutual learning among civilisations.
文摘With the theme Connection for a Better Future,the fourth ASEAN-China Friendship and Cooperation Short Video Contest kicked o!in Beijing on 14 September both online and o#ine.The competition,co-sponsored by the Mission of China to ASEAN,the Permanent Mission of Myanmar to ASEAN,ASEAN Secretariat,National Radio and Television Administration of China,China International Communications Group(CICG),the Department of Asian A!airs of the Ministry of Foreign A!
文摘As the first industrial park built by China in cooperation with a foreign government,Suzhou Industrial Park has become an important window for China’s reform and opening-up and a successful example of international cooperation.
基金Project of Chengdu Municipal Health Commission,No.2022179.
文摘BACKGROUND Psychological problems affect economic development.However,there is a huge gap between mental health service resources and mental health service needs.Existing mental health service technology and platforms cannot meet all the diverse mental health needs of people.Smart medicine is a new medical system based online that can effectively improve the quality and efficiency of medical services and make mental health services accessible.AIM To explore the level of intelligent medical use among young and middle-aged people and its correlation with psychological factors.METHODS Convenience sampling was used to select 200 young and middle-aged patients with medical experience at the Third People's Hospital of Chengdu between January 2022 and January 2023 as the research subjects.The general condition Questionnaire,Eysenck Personality Questionnaire,Symptom Checklist-90,General Health Questionnaire,and Smart Medical Service Use Intention Questionnaire were used to collect data.Pearson’s correlation was used to analyze the correlation between the participants’willingness to use smart medical services and their personality characteristics,psychological symptoms,and mental health.RESULTS The results revealed that the mental health of young and middle-aged people was poor,and some had psycho-logical problems such as anxiety,depression,and physical discomfort.Familiarity,acceptance,and usage of smart healthcare in this population are at a medium level,and these levels correlate with psychological characteristics.Acceptance was positively correlated with E,and negatively correlated with P,anxiety,fear,anxiety/insomnia,and social dysfunction.The degree of use was negatively correlated with P,obsessive-compulsive symptoms,depression,anxiety,hostility,paranoia,and somatic symptoms.CONCLUSION The familiarity,acceptance,and usage of smart medical services among the middle-aged and young groups are related to various psychological characteristics.
基金Sponsored by the National Natural Science Foundation of China(Grant No.61973153)
文摘On-orbit servicing, such as spacecraft maintenance, on-orbit assembly, refueling, and de-orbiting, can reduce the cost of space missions, improve the performance of spacecraft, and extend its life span. The relative state between the servicing and target spacecraft is vital for on-orbit servicing missions, especially the final approaching stage. The major challenge of this stage is that the observed features of the target are incomplete or are constantly changing due to the short distance and limited Field of View (FOV) of camera. Different from cooperative spacecraft, non-cooperative target does not have artificial feature markers. Therefore, contour features, including triangle supports of solar array, docking ring, and corner points of the spacecraft body, are used as the measuring features. To overcome the drawback of FOV limitation and imaging ambiguity of the camera, a "selfie stick" structure and a self-calibration strategy were implemented, ensuring that part of the contour features could be observed precisely when the two spacecraft approached each other. The observed features were constantly changing as the relative distance shortened. It was difficult to build a unified measurement model for different types of features, including points, line segments, and circle. Therefore, dual quaternion was implemented to model the relative dynamics and measuring features. With the consideration of state uncertainty of the target, a fuzzy adaptive strong tracking filter( FASTF) combining fuzzy logic adaptive controller (FLAC) with strong tracking filter(STF) was designed to robustly estimate the relative states between the servicing spacecraft and the target. Finally, the effectiveness of the strategy was verified by mathematical simulation. The achievement of this research provides a theoretical and technical foundation for future on-orbit servicing missions.
文摘The mechanisms for the regulation of synaptic dopamine （DA） include its release from presynaptic vesicles, its interaction with post-synaptic and pre-synaptic DA receptors, the reuptake of DA, via dopamine transporter （DAT）, the diffusion of DA and its metabolism by mono-amine oxidase （MAO） and cate- chol-O-methyl transferase （COMT）. DA controls complex and specialized functions including, movements, behavior, mood, perception, reward, and more recently, neurogenesis （Popolo et al., 2004; Reimer et al., 2013） and neuroregeneration （Hoglinger et al., 2004; Yang et al., 2008）. These functions are varied and of high fidelity. Movement, as an example, requires regulatory mechanisms for initiating, stopping, slowing-down speed- ing-up, changing directions, for governing the relentless urges to move in the young and sedentariness in the old as well as in motor-freezing, catalepsy, tremor and stereotypy.
文摘AT the beginning of this year,people around the globe had a multitude of reasons to expect 2020 to be a super year for biodiversity and action on climate change emergencies.The year 2020 marks the 75th anniversary of the United Nations,the first UN summit on biodiversity at the level of heads of state and government,the 26th session of the Conference of the Parties of the UN Framework Convention on Climate Change(UNFCCC),and the second extraordinary meeting of the Conference of the Parties to the Convention on Biological Diversity(CBD).
文摘China Petroleum Technology & Development Corporation (CPTDC), a wholly owned subsidiary company of China National Petroleum Corporation (CNPC), is China's largest multinational company specializing in the manufacturing and supply of petroleum and petrochemical material, equipment and technology.
文摘Theoriginal vversion of this article unfortunately contained a mistakee.The institution number of the author Huang-ming CAO was incorrect.The corrected one is Huang-ming CAO^(3).
文摘Zambia takes measures to protect water resources and ensure ecological progress Africa is a haven of excellent natural conditions and is rich in freshwater bodies with great potential to revamp its socio-economic development.
文摘IT came as no surprise to the outside world when on November 15 the long- speculated lineup of the new leadership of the Communist Party of China （CPC） was announced. Xi Jinping, newly-elect- ed General Secretary of the Party, and hi, colleagues made their debut before the press, one day after the conclusion of the 18th CPC National Congress.
文摘Li Na’s historic French Open tennis win provides a boost for China’s sports market spending FOR the past few weeks,Mao Mao has been battling to make tennis court reservations.Mao,a sports fanatic,has gotten used to spending two hours every weekend playing tennis with his friends. But Mao later found that the phone lines
基金Independent Project of State Key Laboratory of Geo-information Engineering(SKLGIE2022-ZZ-01)The Youth Science Innovation Fund(No.2023-01)。
文摘GF-14 satellite is a new generation of sub-meter stereo surveying and mapping satellite in China,carrying dual-line array stereo mapping cameras to achieve 1∶10000 scale topographic mapping without Ground Control Points(GCPs).In fact,space-based high-precision mapping without GCPs is a challenging task that depends on the close cooperation of several payloads and links,of which on-orbit geometric calibration is one of the most critical links.In this paper,the on-orbit geometric calibration of the dual-line array cameras of GF-14 satellite was performed using the control points collected in the high-precision digital calibration field,and the calibration parameters of the dual-line array cameras were solved as a whole by alternate iterations of forward and backward intersection.On this basis,the location accuracy of the stereo images using the calibration parameters was preliminarily evaluated by using several test fields around the world.The evaluation result shows that the direct forward intersection accuracy of GF-14 satellite images without GCPs after on-orbit geometric calibration reaches 2.34 meters(RMS)in plane and 1.97 meters(RMS)in elevation.
文摘"Parts of China have been suffering from sustained storms which have caused disasters in several provinces. Flood prevention authorities are under considerable stress. China Central Meteorological Observatory has issued a blue alert and it is forecasted that a broader area of South China will be stricken by storms in the coming days." Weather forecast information broadcasted by China Central Television (CCTV) is important for people to plan their outgoing schedules and
