Over the years,Hisense has formed an operation model that integrates production,sales and R&D globally,and built a global collaborative R&D system,which has laid a solid foundation for standardization.Hisense ...Over the years,Hisense has formed an operation model that integrates production,sales and R&D globally,and built a global collaborative R&D system,which has laid a solid foundation for standardization.Hisense keeps including advanced achievements and mature production experience in standards,injecting impetus into the innovation and high-quality development of the industry.展开更多
Editors Yang Wang,Xi'an Jiaotong University Dongbo Shi,Shanghai Jiaotong University Ye Sun,University College London Zhesi Shen,National Science Library,CAS Topic of the Special Issue What are the top questions to...Editors Yang Wang,Xi'an Jiaotong University Dongbo Shi,Shanghai Jiaotong University Ye Sun,University College London Zhesi Shen,National Science Library,CAS Topic of the Special Issue What are the top questions towards better science and innovation and the required data to answer these questions?展开更多
According to the situation of our society,we all know that better students can have better future.As a middle school student,I know the importance of knowledge.When I was chosen to the class of self-improving,I was pr...According to the situation of our society,we all know that better students can have better future.As a middle school student,I know the importance of knowledge.When I was chosen to the class of self-improving,I was proud to join it.For me,staying with other students in my original class will make me lazy.Therefore,I am grateful for this chance.展开更多
Can progesterone be a better alternative to dexamethasone for use in routine brain surgery？ Surgical brain injury （SBI） is a form of brain trauma caused by various forms of neurosurgical interventions including bra...Can progesterone be a better alternative to dexamethasone for use in routine brain surgery？ Surgical brain injury （SBI） is a form of brain trauma caused by various forms of neurosurgical interventions including brain tumor excision, evacuation of intracere- bral hemorrhage and brain lobectomv （e.g., in epililepsv surger）.展开更多
The low stress abrasion behaviours of heat treated mild, medium carbon and high C - low Cr steels, which are generally used in making farm implements, have been investigated. The simple heat treatment greatly improves...The low stress abrasion behaviours of heat treated mild, medium carbon and high C - low Cr steels, which are generally used in making farm implements, have been investigated. The simple heat treatment greatly improves the hardness, tensile strength and abrasion resistance of medium carbon and high C - low Cr steels. The results indicate that the material removal during abrasion is controlled by a number of factors, such as hardness, chemical composition, microstructure and heat treatment conditions. The conclusion is that the heat treated high C - low Cr steel and mild steel carburized by using coaltar pitch provide the best hardness and abrasion resistance and thus appear to be the most suitable materials for making agricultural tools.展开更多
For bone regenerative engineering,it is a promising method to form skeletal tissues differentiating from human bone morrow mesenchyme stem cells(hBMSCs).However,it is still a critical challenge to efficiently control ...For bone regenerative engineering,it is a promising method to form skeletal tissues differentiating from human bone morrow mesenchyme stem cells(hBMSCs).However,it is still a critical challenge to efficiently control ostogenesis and clearly reveal the influence factor.To this end,the fluorescent gold nanodots(Au NDs) with highly negative charges as osteogenic induction reagent are successfully synthesized,which display better than commercial osteogenic induction medium through the investigations of ALP activity(2.5 folds) and cytoskeleton staining(1.5 folds).Two kinds of oligopeptides with different bio-structures(cysteine,Cys and glutathione,GSH) are selected for providing surficial charges on Au NDs.It is revealed that Au-Cys with more negative charges(-51 mV) play better role than Au-GSH(-19 mV) in osteogenic differentiation,when both of them have same size(~2 nm),sphere shape and show similar cell uptake amount.To explore deeply,osteogenesis related signaling pathways are monitored,revealing that the enhancement of osteogenic differentiation was through autophagy signaling pathway triggered by Au-Cys.And the promotion of highly negative charges in osteogenic diffe rentiation was further proved via sliver nanodots(Ag NDs,Ag-Cys and Ag-GSH) and carbon nanodots(CDs,Cys-CDs and GSH-CDs).This work indicates part of insights during hBMSCs differentiation and provides a novel strategy in osteogenic differentiation process.展开更多
In this paper, a better admissible class B＋ is introduced and a new fixed point theorem for better admissible multimap is proved on abstract convex spaces. As a consequence, we deduce a new fixed point theorem on abs...In this paper, a better admissible class B＋ is introduced and a new fixed point theorem for better admissible multimap is proved on abstract convex spaces. As a consequence, we deduce a new fixed point theorem on abstract convex Ф-spaces. Our main results generalize some recent work due to Lassonde, Kakutani, Browder, and Park展开更多
Since the advent of liver resection as a treatment option for benign and malignant liver diseases, liver resections have continued to become safer with most centers reporting low morbidity and mortality. Gradual impro...Since the advent of liver resection as a treatment option for benign and malignant liver diseases, liver resections have continued to become safer with most centers reporting low morbidity and mortality. Gradual improvements in outcomes over the last decade have largely been due to improvement in surgical techniques including the more routine use of laparoscopy and advances in perioperative care.展开更多
Diabetes has become a major public health concern in the world and the total number of diabetic patients is considered to soar to 366 million in 2030. Emerging evidence has suggested that earlier detection of type 2 d...Diabetes has become a major public health concern in the world and the total number of diabetic patients is considered to soar to 366 million in 2030. Emerging evidence has suggested that earlier detection of type 2 diabetes, glycaemic control improvement and intensified risk factor management may result in clinically important improvements in diabetes-related morbidity and mortality. According to the World Health Organization （WHO）p strategies such as clinical questionnaires, urine glucose, blood glucose, glycated haemoglobin A1C （HbA1C） and combinations of the above tests can be used for screening diabetes.展开更多
Men struggle for human betterment for over thousands of years.In Mary Shelley’s Frankenstein,there are many heroes who struggle for human betterment,such as Frankenstein,the Modern Prometheus,Walton,and even the mons...Men struggle for human betterment for over thousands of years.In Mary Shelley’s Frankenstein,there are many heroes who struggle for human betterment,such as Frankenstein,the Modern Prometheus,Walton,and even the monster,etc.The better we live today the higher aims we want to reach in the future.In this Gothic novel,Mary Shelley shows her idea of the creation of life and the consequence of it.Some of her descriptions reflect her opinion.展开更多
Farrar, Straus and Giroux Dead Aid unfllinchingly confronts one of the I greatest myths of our time： that billions of dollars in aid sent from wealthy countriesto developing African nations has helped reduce poverty...Farrar, Straus and Giroux Dead Aid unfllinchingly confronts one of the I greatest myths of our time： that billions of dollars in aid sent from wealthy countriesto developing African nations has helped reduce poverty and increase growth. In fact, poverty lev els continue to escalate, growth rates have steadily declined and millions continue to suffer. Debunking the current model of international aid promoted by l）oth Hollwood celebrities and policy makers,展开更多
To the Editor:A large international study has been recently published focusing on the combination of morphological aspects and alpha-fetoprotein(AFP)as predictors of survival in patients with hepatocellular cancer(HCC...To the Editor:A large international study has been recently published focusing on the combination of morphological aspects and alpha-fetoprotein(AFP)as predictors of survival in patients with hepatocellular cancer(HCC)treated with liver transplantation(LT)[1].As a matter of fact,morphology and biology represent the two sides of the same展开更多
With flowers in full bloom, the International Horticultural Exhibition 2019 Beijing (Expo 2019) kicked off in the capital’s Yanqing District last April. The Expo 2019, as indicated by its theme “Live Green, Live Bet...With flowers in full bloom, the International Horticultural Exhibition 2019 Beijing (Expo 2019) kicked off in the capital’s Yanqing District last April. The Expo 2019, as indicated by its theme “Live Green, Live Better,” aims to “show the vision of green development, highlight the achievements of ecological progress, and promote the development of horticulture and green industries.”展开更多
文摘Over the years,Hisense has formed an operation model that integrates production,sales and R&D globally,and built a global collaborative R&D system,which has laid a solid foundation for standardization.Hisense keeps including advanced achievements and mature production experience in standards,injecting impetus into the innovation and high-quality development of the industry.
文摘Editors Yang Wang,Xi'an Jiaotong University Dongbo Shi,Shanghai Jiaotong University Ye Sun,University College London Zhesi Shen,National Science Library,CAS Topic of the Special Issue What are the top questions towards better science and innovation and the required data to answer these questions?
文摘According to the situation of our society,we all know that better students can have better future.As a middle school student,I know the importance of knowledge.When I was chosen to the class of self-improving,I was proud to join it.For me,staying with other students in my original class will make me lazy.Therefore,I am grateful for this chance.
文摘Can progesterone be a better alternative to dexamethasone for use in routine brain surgery？ Surgical brain injury （SBI） is a form of brain trauma caused by various forms of neurosurgical interventions including brain tumor excision, evacuation of intracere- bral hemorrhage and brain lobectomv （e.g., in epililepsv surger）.
文摘The low stress abrasion behaviours of heat treated mild, medium carbon and high C - low Cr steels, which are generally used in making farm implements, have been investigated. The simple heat treatment greatly improves the hardness, tensile strength and abrasion resistance of medium carbon and high C - low Cr steels. The results indicate that the material removal during abrasion is controlled by a number of factors, such as hardness, chemical composition, microstructure and heat treatment conditions. The conclusion is that the heat treated high C - low Cr steel and mild steel carburized by using coaltar pitch provide the best hardness and abrasion resistance and thus appear to be the most suitable materials for making agricultural tools.
基金supported by the National Nature Science Foundation of China(Nos.51861145311,22005338)Science Foundation of China University of Petroleum,Beijing(No.2462017YJRC027)Open Project of State Key Laboratory of Superhard Materials(Jilin University 201802)。
文摘For bone regenerative engineering,it is a promising method to form skeletal tissues differentiating from human bone morrow mesenchyme stem cells(hBMSCs).However,it is still a critical challenge to efficiently control ostogenesis and clearly reveal the influence factor.To this end,the fluorescent gold nanodots(Au NDs) with highly negative charges as osteogenic induction reagent are successfully synthesized,which display better than commercial osteogenic induction medium through the investigations of ALP activity(2.5 folds) and cytoskeleton staining(1.5 folds).Two kinds of oligopeptides with different bio-structures(cysteine,Cys and glutathione,GSH) are selected for providing surficial charges on Au NDs.It is revealed that Au-Cys with more negative charges(-51 mV) play better role than Au-GSH(-19 mV) in osteogenic differentiation,when both of them have same size(~2 nm),sphere shape and show similar cell uptake amount.To explore deeply,osteogenesis related signaling pathways are monitored,revealing that the enhancement of osteogenic differentiation was through autophagy signaling pathway triggered by Au-Cys.And the promotion of highly negative charges in osteogenic diffe rentiation was further proved via sliver nanodots(Ag NDs,Ag-Cys and Ag-GSH) and carbon nanodots(CDs,Cys-CDs and GSH-CDs).This work indicates part of insights during hBMSCs differentiation and provides a novel strategy in osteogenic differentiation process.
基金Supported by the National Science Foundation of China(Grant 10626025)Research Grant of Chongqing Key Laboratory of Operations Research and System Engineering
文摘In this paper, a better admissible class B＋ is introduced and a new fixed point theorem for better admissible multimap is proved on abstract convex spaces. As a consequence, we deduce a new fixed point theorem on abstract convex Ф-spaces. Our main results generalize some recent work due to Lassonde, Kakutani, Browder, and Park
文摘Since the advent of liver resection as a treatment option for benign and malignant liver diseases, liver resections have continued to become safer with most centers reporting low morbidity and mortality. Gradual improvements in outcomes over the last decade have largely been due to improvement in surgical techniques including the more routine use of laparoscopy and advances in perioperative care.
基金supported by the National Natural Science Foundation of China (30700385)the China Postdoctoral Science Foundation(20070410690)the Postdoctoral Fund of Shanghai Committee of Science and Technology
文摘Diabetes has become a major public health concern in the world and the total number of diabetic patients is considered to soar to 366 million in 2030. Emerging evidence has suggested that earlier detection of type 2 diabetes, glycaemic control improvement and intensified risk factor management may result in clinically important improvements in diabetes-related morbidity and mortality. According to the World Health Organization （WHO）p strategies such as clinical questionnaires, urine glucose, blood glucose, glycated haemoglobin A1C （HbA1C） and combinations of the above tests can be used for screening diabetes.
文摘Men struggle for human betterment for over thousands of years.In Mary Shelley’s Frankenstein,there are many heroes who struggle for human betterment,such as Frankenstein,the Modern Prometheus,Walton,and even the monster,etc.The better we live today the higher aims we want to reach in the future.In this Gothic novel,Mary Shelley shows her idea of the creation of life and the consequence of it.Some of her descriptions reflect her opinion.
文摘Farrar, Straus and Giroux Dead Aid unfllinchingly confronts one of the I greatest myths of our time： that billions of dollars in aid sent from wealthy countriesto developing African nations has helped reduce poverty and increase growth. In fact, poverty lev els continue to escalate, growth rates have steadily declined and millions continue to suffer. Debunking the current model of international aid promoted by l）oth Hollwood celebrities and policy makers,
文摘To the Editor:A large international study has been recently published focusing on the combination of morphological aspects and alpha-fetoprotein(AFP)as predictors of survival in patients with hepatocellular cancer(HCC)treated with liver transplantation(LT)[1].As a matter of fact,morphology and biology represent the two sides of the same
文摘With flowers in full bloom, the International Horticultural Exhibition 2019 Beijing (Expo 2019) kicked off in the capital’s Yanqing District last April. The Expo 2019, as indicated by its theme “Live Green, Live Better,” aims to “show the vision of green development, highlight the achievements of ecological progress, and promote the development of horticulture and green industries.”
