This editorial comments on the article by Alzerwi.We focus on the development course,present challenges,and future perspectives of medical education.Modern medical education is gradually undergoing significant and pro...This editorial comments on the article by Alzerwi.We focus on the development course,present challenges,and future perspectives of medical education.Modern medical education is gradually undergoing significant and profound changes worldwide.The emergence of new ideas,methodologies,and techniques has created opportunities for medical education developments and brought new concerns and challenges,ultimately promoting virtuous progress in medical education reform.The sustainable development of medical education needs joint efforts and support from governments,medical colleges,hospitals,researchers,administrators,and educators.展开更多
Ferroelectric materials have many interesting physical properties such as ferroelectricity, pyroelectricity, piezoelectricity, and opto-electricity, and applying ferroelectric materials in the forms of thin and thick ...Ferroelectric materials have many interesting physical properties such as ferroelectricity, pyroelectricity, piezoelectricity, and opto-electricity, and applying ferroelectric materials in the forms of thin and thick films and integrating them on the silicon substrate as electronic and MEMS devices is a very attractive research area and challenging. In this paper, we report our research works on ferroelectric MEMS and ferroelectric films for electronic device applications. Pyroelectric thin film infrared sensors have been made, characterized, and a 32×32 array with its size of 1cm×1cm has been obtained on Si membrane. Ferroelectric thin films in amorphous phase have been applied to make silicon based hydrogen gas sensors with the metal/amorphous ferroelectric film/metal device structure, and its turn-on voltage of about 4.5V at ~1000 ppm in air is about 7 times of the best value reported in the literature. For the application of electron emission flat panel display, ferroelectric BST thin films with excess Ti concentrations have been coated on Si tips, the threshold voltage of those ferroelectric film coated tips has been reduced about one order from ~70 V/μm to 4~10 V/μm for different Ti concentrations, and however, the electron emission current density has been increased at least 3~4 order for those coated tips compared to that of the bare Si tips. To fulfill in the thickness gap between thin film of typical ~1 μm made by PVD/CVD and polished ceramic wafer of ~50 μm from the bulk, piezoelectric films with thickness in a range of 1~30 μm have been successfully deposited on Si substrate at a low temperature of 650oC by a novel hybridized deposition technique, and piezoelectric MEMS ultrasonic arrays have been very recently obtained with the sound pressure level up to ~120 dB. More detailed results will be presented and mechanisms will be discussed.展开更多
Since 1980’s,life science has been holding a prominent place in the development ofscience and it is expected to become one of the leading disciplines in the 21 century.Currently the development of life science presen...Since 1980’s,life science has been holding a prominent place in the development ofscience and it is expected to become one of the leading disciplines in the 21 century.Currently the development of life science presents the following characteristics:1.The understanding of life was deepened to the molecule level.展开更多
This review paper provides an overview of the micropillar compression technique as applied to magnesium(Mg) and its alloys. It explores the influence of various factors, such as pillar size, shape, temperature, and st...This review paper provides an overview of the micropillar compression technique as applied to magnesium(Mg) and its alloys. It explores the influence of various factors, such as pillar size, shape, temperature, and strain rate on the mechanical properties of Mg.Additionally, the impact of alloying elements, aging, and precipitates in Mg alloys has been extensively examined, revealing their significant influence on mechanical performance. The study highlights the strength and strain hardening improvements in Mg with decreasing pillar size in micropillar compression. Furthermore, the role of precipitates as strengthening agents, affecting deformation mechanisms and overall mechanical response, is explored. These valuable insights are crucial for designing Mg-based materials with enhanced mechanical properties for advanced engineering applications.展开更多
Welcome to the second issue of Green Energy&Environment(GEE).The purpose of this Editorial is to give some insight into the opportunities and challenges related to green energy and environment,and to call on more ...Welcome to the second issue of Green Energy&Environment(GEE).The purpose of this Editorial is to give some insight into the opportunities and challenges related to green energy and environment,and to call on more researchers participating actively in and sharing the chance.As is known today,human is currently facing the triple crises:ecological,social and economic,which have展开更多
Computer science continues to grow at a rapid pace,raising the issue of how universities can best adapt to this trend.At the third Global Forum on the Development of Computer Science(GFDCS),five heads of departments o...Computer science continues to grow at a rapid pace,raising the issue of how universities can best adapt to this trend.At the third Global Forum on the Development of Computer Science(GFDCS),five heads of departments of computer science from Asia,Europe,and North America came together to exchange ideas under the theme Challenges and Opportunities of Computer Science in the New Era.Through the discussions,a number of new challenges were explored,including how to meet the growing demand for computer science education,how to manage increased teaching loads,how to foster collaboration between computer science and other disciplines,how to raise ethical awareness,and how to support new“transdisciplinary”modes of education and research.At the same time,there was a consensus on the need to strengthen the role of computer science in other departments,the importance of industrial collaboration,and the need for more scalable approaches to teaching.The evolving role of computer science within the context of broader science was also discussed.展开更多
Although not everybody wants to admit,climate change has been happening with irreversible consequences.It is getting worse and worse and becoming more and more influential to not only the environment but also to all k...Although not everybody wants to admit,climate change has been happening with irreversible consequences.It is getting worse and worse and becoming more and more influential to not only the environment but also to all kinds of beings;our earth is now seriously threatened by climate change.It is a critical issue the whole society must face and actions must展开更多
We analyze development situations of Beijing modern urban agriculture from agricultural distribution,agricultural foundation and agricultural industrial system.Our research on challenges and opportunities of Beijing m...We analyze development situations of Beijing modern urban agriculture from agricultural distribution,agricultural foundation and agricultural industrial system.Our research on challenges and opportunities of Beijing modern urban agriculture indicates that challenges include short of resources,deterioration of environment,and high production cost,and opportunities include large market space,advanced agricultural industrial experience and many other development opportunities.On the basis of these,we put forward development thought of Beijing modern urban agriculture in " the Twelfth Five Plan" period.We must improve foundation,integration and demonstration of agriculture;orient towards market and satisfy medium and high end market demands;actively cultivate and strengthen agricultural industrial level;create unique product brand;and raise added value of agricultural products.展开更多
To alleviate the global warming by removing excess CO_(2) and converting them into value-added chemicals,(photo)electrochemical reduction has been recognized as a promising strategy.As the CO_(2) reduction reaction(CO...To alleviate the global warming by removing excess CO_(2) and converting them into value-added chemicals,(photo)electrochemical reduction has been recognized as a promising strategy.As the CO_(2) reduction reaction(CO_(2) RR) is involved with multiple electrons and multiple products,plus the complexity of the surface chemical environment of the catalyst,it is extremely challenging to establish the structure/function relationship.Atomically precise metal nanoclusters(NCs),with crystallographically resolved structure,molecule-like characters and strong quantum confinement effects,have been emerging as a new type of catalyst for CO_(2) RR,and more importantly,they can provide an ideal platform to unravel the comprehensive mechanistic insights and establish the structure/function relationship eventually.In this review,the recent advances regarding employing molecular metal NCs with well-defined structure including Au NCs,Au-based alloy NCs,Ag NCs,Cu NCs for CO_(2) RR and relevant mechanistic studies are discussed,and the opportunities and challenges are proposed at the end for paving the development of CO_(2) RR by using atomically precise metal NCs.展开更多
This paper first analyzes the main opportunities for sustainable development of Fumian District,Yulin City,and then discusses the challenges faced by Fumian District in its sustainable development.Finally,it proposes ...This paper first analyzes the main opportunities for sustainable development of Fumian District,Yulin City,and then discusses the challenges faced by Fumian District in its sustainable development.Finally,it proposes safeguard measures for sustainable development of Fumian District:(i)strengthening leadership and implementing responsibilities;(ii)enhancing cooperation and gathering forces;(iii)reinforcing supervision and ensuring implementation;(iv)increasing input and integrating resources;(v)strengthening publicity and creating an atmosphere.展开更多
Based on the “Opinions on Deepening the Reform of Medicine and Health”, “Strategic planning outline of thedevelopment of Traditional Chinese Medicine (2016-2030)” and the other relevant polices announced by Stat...Based on the “Opinions on Deepening the Reform of Medicine and Health”, “Strategic planning outline of thedevelopment of Traditional Chinese Medicine (2016-2030)” and the other relevant polices announced by StateAdministration of Traditional Chinese Medicine of the People’s Republic of China, this paper analyzes and summarizesthe opportunities and challenges for the development of Traditional Chinese Medicine nursing (TCM nursing) under thenew healthcare reform, in order to provide reference and thinking for the professional development of TCM nursing.展开更多
The Internet has made an important part of the national information infrastructure of China. Without the Internet, social informationization cannot be popularized to an extent as today. Upon the coming of a new year, ...The Internet has made an important part of the national information infrastructure of China. Without the Internet, social informationization cannot be popularized to an extent as today. Upon the coming of a new year, we especially invited Mr. Jiang Lintao, a famous communication expert and the chief engineer of China Academy of Telecommunication Research of the Ministry of Information Industry, to give us his opinions on the opportunities and challenges brought by the Internet. According to Mr. Jiang, the appearance of the Internet has brought great impact on telecommunications networks. It has broken the monopoly of the telecom industry in telecom services and promoted the development of technologies. Characterized by continuous innovation and aggressiveness, Internet services guarantee their dominating position in broadband networks, and put the telecom industry in a quite passive position. The telecom industry is still looking for new development direction and breakthroughs in technology so as to regain its leading position. Mr. Jiang also pointed out that the future of both telecom networks and the Internet should be next generation network, which will be the main body of the future national information infrastructure. The essential features of the next generation network should be as follows: it should be secure and trustworthy enough to safeguard users’ rights, national security and social stability; it should be scalable enough to allow sustainable development; it should be compatible with current main technologies, co-exist with them and allow their graceful evolution; and it should provide a network platform for everybody to innovate.展开更多
1 Introduction High-speed networking can now deliver Information tomillions of users in seconds.Users In turn can download thedata in electronic format or just print them out with a fewstrokes of the keyboard.The data...1 Introduction High-speed networking can now deliver Information tomillions of users in seconds.Users In turn can download thedata in electronic format or just print them out with a fewstrokes of the keyboard.The data can be easily saved,reorganized and modified electronocally.While informationtechnology provides fast and easy ways to distributeinformation,it also presents challenges.Easy access tocopyrighted materials is resulting in the unauthorizedreproduction of all kinds of information,forcing info...展开更多
基金Supported by Education and Teaching Reform Project of the First Clinical College of Chongqing Medical University,No.CMER202305Program for Youth Innovation in Future Medicine,Chongqing Medical University,No.W0138Natural Science Foundation of Tibet Autonomous Region,No.XZ2024ZR-ZY100(Z).
文摘This editorial comments on the article by Alzerwi.We focus on the development course,present challenges,and future perspectives of medical education.Modern medical education is gradually undergoing significant and profound changes worldwide.The emergence of new ideas,methodologies,and techniques has created opportunities for medical education developments and brought new concerns and challenges,ultimately promoting virtuous progress in medical education reform.The sustainable development of medical education needs joint efforts and support from governments,medical colleges,hospitals,researchers,administrators,and educators.
文摘Ferroelectric materials have many interesting physical properties such as ferroelectricity, pyroelectricity, piezoelectricity, and opto-electricity, and applying ferroelectric materials in the forms of thin and thick films and integrating them on the silicon substrate as electronic and MEMS devices is a very attractive research area and challenging. In this paper, we report our research works on ferroelectric MEMS and ferroelectric films for electronic device applications. Pyroelectric thin film infrared sensors have been made, characterized, and a 32×32 array with its size of 1cm×1cm has been obtained on Si membrane. Ferroelectric thin films in amorphous phase have been applied to make silicon based hydrogen gas sensors with the metal/amorphous ferroelectric film/metal device structure, and its turn-on voltage of about 4.5V at ~1000 ppm in air is about 7 times of the best value reported in the literature. For the application of electron emission flat panel display, ferroelectric BST thin films with excess Ti concentrations have been coated on Si tips, the threshold voltage of those ferroelectric film coated tips has been reduced about one order from ~70 V/μm to 4~10 V/μm for different Ti concentrations, and however, the electron emission current density has been increased at least 3~4 order for those coated tips compared to that of the bare Si tips. To fulfill in the thickness gap between thin film of typical ~1 μm made by PVD/CVD and polished ceramic wafer of ~50 μm from the bulk, piezoelectric films with thickness in a range of 1~30 μm have been successfully deposited on Si substrate at a low temperature of 650oC by a novel hybridized deposition technique, and piezoelectric MEMS ultrasonic arrays have been very recently obtained with the sound pressure level up to ~120 dB. More detailed results will be presented and mechanisms will be discussed.
文摘Since 1980’s,life science has been holding a prominent place in the development ofscience and it is expected to become one of the leading disciplines in the 21 century.Currently the development of life science presents the following characteristics:1.The understanding of life was deepened to the molecule level.
文摘This review paper provides an overview of the micropillar compression technique as applied to magnesium(Mg) and its alloys. It explores the influence of various factors, such as pillar size, shape, temperature, and strain rate on the mechanical properties of Mg.Additionally, the impact of alloying elements, aging, and precipitates in Mg alloys has been extensively examined, revealing their significant influence on mechanical performance. The study highlights the strength and strain hardening improvements in Mg with decreasing pillar size in micropillar compression. Furthermore, the role of precipitates as strengthening agents, affecting deformation mechanisms and overall mechanical response, is explored. These valuable insights are crucial for designing Mg-based materials with enhanced mechanical properties for advanced engineering applications.
文摘Welcome to the second issue of Green Energy&Environment(GEE).The purpose of this Editorial is to give some insight into the opportunities and challenges related to green energy and environment,and to call on more researchers participating actively in and sharing the chance.As is known today,human is currently facing the triple crises:ecological,social and economic,which have
文摘Computer science continues to grow at a rapid pace,raising the issue of how universities can best adapt to this trend.At the third Global Forum on the Development of Computer Science(GFDCS),five heads of departments of computer science from Asia,Europe,and North America came together to exchange ideas under the theme Challenges and Opportunities of Computer Science in the New Era.Through the discussions,a number of new challenges were explored,including how to meet the growing demand for computer science education,how to manage increased teaching loads,how to foster collaboration between computer science and other disciplines,how to raise ethical awareness,and how to support new“transdisciplinary”modes of education and research.At the same time,there was a consensus on the need to strengthen the role of computer science in other departments,the importance of industrial collaboration,and the need for more scalable approaches to teaching.The evolving role of computer science within the context of broader science was also discussed.
文摘Although not everybody wants to admit,climate change has been happening with irreversible consequences.It is getting worse and worse and becoming more and more influential to not only the environment but also to all kinds of beings;our earth is now seriously threatened by climate change.It is a critical issue the whole society must face and actions must
基金Supported by Research Project for Previous Period in the Twelfth Five-Year Plan for National Economic and Social Development of Beijing (Industry 02)
文摘We analyze development situations of Beijing modern urban agriculture from agricultural distribution,agricultural foundation and agricultural industrial system.Our research on challenges and opportunities of Beijing modern urban agriculture indicates that challenges include short of resources,deterioration of environment,and high production cost,and opportunities include large market space,advanced agricultural industrial experience and many other development opportunities.On the basis of these,we put forward development thought of Beijing modern urban agriculture in " the Twelfth Five Plan" period.We must improve foundation,integration and demonstration of agriculture;orient towards market and satisfy medium and high end market demands;actively cultivate and strengthen agricultural industrial level;create unique product brand;and raise added value of agricultural products.
基金the grant from the National Natural Science Foundation of China(No.21805170)financial support from Guangdong Natural Science Funds for Distinguished Young Scholars(No.2015A030306006)+1 种基金Guangzhou Science and Technology Plan Projects(No.201804010323)the fundamental funds for central universities(SCUT No.2018ZD022)。
文摘To alleviate the global warming by removing excess CO_(2) and converting them into value-added chemicals,(photo)electrochemical reduction has been recognized as a promising strategy.As the CO_(2) reduction reaction(CO_(2) RR) is involved with multiple electrons and multiple products,plus the complexity of the surface chemical environment of the catalyst,it is extremely challenging to establish the structure/function relationship.Atomically precise metal nanoclusters(NCs),with crystallographically resolved structure,molecule-like characters and strong quantum confinement effects,have been emerging as a new type of catalyst for CO_(2) RR,and more importantly,they can provide an ideal platform to unravel the comprehensive mechanistic insights and establish the structure/function relationship eventually.In this review,the recent advances regarding employing molecular metal NCs with well-defined structure including Au NCs,Au-based alloy NCs,Ag NCs,Cu NCs for CO_(2) RR and relevant mechanistic studies are discussed,and the opportunities and challenges are proposed at the end for paving the development of CO_(2) RR by using atomically precise metal NCs.
基金Yulin City Scientific Research and Technology Development Plan Project(YuShiKe 20204038,2019Cxpt00A4,YuShiKe 20202001).
文摘This paper first analyzes the main opportunities for sustainable development of Fumian District,Yulin City,and then discusses the challenges faced by Fumian District in its sustainable development.Finally,it proposes safeguard measures for sustainable development of Fumian District:(i)strengthening leadership and implementing responsibilities;(ii)enhancing cooperation and gathering forces;(iii)reinforcing supervision and ensuring implementation;(iv)increasing input and integrating resources;(v)strengthening publicity and creating an atmosphere.
文摘Based on the “Opinions on Deepening the Reform of Medicine and Health”, “Strategic planning outline of thedevelopment of Traditional Chinese Medicine (2016-2030)” and the other relevant polices announced by StateAdministration of Traditional Chinese Medicine of the People’s Republic of China, this paper analyzes and summarizesthe opportunities and challenges for the development of Traditional Chinese Medicine nursing (TCM nursing) under thenew healthcare reform, in order to provide reference and thinking for the professional development of TCM nursing.
文摘The Internet has made an important part of the national information infrastructure of China. Without the Internet, social informationization cannot be popularized to an extent as today. Upon the coming of a new year, we especially invited Mr. Jiang Lintao, a famous communication expert and the chief engineer of China Academy of Telecommunication Research of the Ministry of Information Industry, to give us his opinions on the opportunities and challenges brought by the Internet. According to Mr. Jiang, the appearance of the Internet has brought great impact on telecommunications networks. It has broken the monopoly of the telecom industry in telecom services and promoted the development of technologies. Characterized by continuous innovation and aggressiveness, Internet services guarantee their dominating position in broadband networks, and put the telecom industry in a quite passive position. The telecom industry is still looking for new development direction and breakthroughs in technology so as to regain its leading position. Mr. Jiang also pointed out that the future of both telecom networks and the Internet should be next generation network, which will be the main body of the future national information infrastructure. The essential features of the next generation network should be as follows: it should be secure and trustworthy enough to safeguard users’ rights, national security and social stability; it should be scalable enough to allow sustainable development; it should be compatible with current main technologies, co-exist with them and allow their graceful evolution; and it should provide a network platform for everybody to innovate.
文摘1 Introduction High-speed networking can now deliver Information tomillions of users in seconds.Users In turn can download thedata in electronic format or just print them out with a fewstrokes of the keyboard.The data can be easily saved,reorganized and modified electronocally.While informationtechnology provides fast and easy ways to distributeinformation,it also presents challenges.Easy access tocopyrighted materials is resulting in the unauthorizedreproduction of all kinds of information,forcing info...