The Green and Sustainable Chemistry Network (GSCN) has been promoting GSC technology development since 2000 in three major activities, holding the GSC symposium, running the GSC Awards, and providing the information...The Green and Sustainable Chemistry Network (GSCN) has been promoting GSC technology development since 2000 in three major activities, holding the GSC symposium, running the GSC Awards, and providing the information related to GSC in Japan. GSCN holds a vision to expand the philosophy of GSC not only to the domestic, but also to the global. As for a regional network in Asia and Oceania, we established the Asia-Oceania GSC Network, and we hope to expand the Network to all countries.展开更多
Modern science and technology is being developed towards destroying human and human calls for a new era of science & technology. Contemporary science is seeing a significant breakthrough and a new revolution of scien...Modern science and technology is being developed towards destroying human and human calls for a new era of science & technology. Contemporary science is seeing a significant breakthrough and a new revolution of science and technology is beginning. The theoretical basis of the new revolution of science and technology is "state space-time", "the unity of physics and biology", "thinking motion and automatic organization of the universe" and "thinking's active control". The new revolution of science and technology takes material (microscopic particle) science, life (organic and inorganic life) science and thinking science as the fundamental sciences, takes life technology, new information technology, new material technology and new energy technology as the basis of the overall technological system, progresses in all aspects, including life technology, medicine, new material technology, new information technology, new energy technology, new robot technology, new manufacturing technology, laser technology, astronavigation technology, ocean technology, military technology, new educational technology, etc., and at the same time Qigong technology with thinking control as its core will emerge. In the era of life, thinking and Qigong technology, technology proceeds very rapidly, global society and economy develop at a high speed, and globalization is accelerated. Life, thinking and Qigong technologies feature improvement of human internal energy and quality, purify human soul, reduce material desire, and greatly reduce environmental disruption. The overall (thinking and Qigong) technology takes the establishment of the cosmic era of human as its ultimate goal.展开更多
In this study, the characteristics of nanocellulose extracted from bleached softwood and hardwood pulps by formic acid hydrolysis followed by TEMPO-mediated oxidation were compared using transmission electron microsco...In this study, the characteristics of nanocellulose extracted from bleached softwood and hardwood pulps by formic acid hydrolysis followed by TEMPO-mediated oxidation were compared using transmission electron microscopy(TEM), atomic force microscopy(AFM), Fourier transform infrared analysis(FT-IR), X-ray diffraction(XRD), and thermal gravimetric analysis(TGA). The experimental results showed that the nanocellulose products derived from spruce pulp exhibited a relatively larger particle size, higher crystallinity, and higher thermal stability, compared with the corresponding products obtained from aspen pulp under the same conditions.Furthermore, the study helped establish that the properties of the nanocellulose products were highly dependent on the nature of the starting materials under identical processing conditions.展开更多
Nanocellulose(NC) has attracted much interest in the tissue engineering(TE) field because of its properties including biocompatibility,renewability, non-toxicity, functionality, and excellent mechanical performance. T...Nanocellulose(NC) has attracted much interest in the tissue engineering(TE) field because of its properties including biocompatibility,renewability, non-toxicity, functionality, and excellent mechanical performance. This review mainly focused on the advanced applications of NC-based composites in hard TE including cartilage TE, bone TE, and dental TE, illustrated the processing methods for synthesizing scaffolds including electrospinning, freeze-drying, and 3 D printing, reviewed the current status of hard TE, and presented perspective on the future of TE technology.展开更多
The project analyzes the student's participation in complementary activities such as Education Tutorial Program, Junior Company and Academic Center. These organizations have the goal to improve, expand and connect kn...The project analyzes the student's participation in complementary activities such as Education Tutorial Program, Junior Company and Academic Center. These organizations have the goal to improve, expand and connect knowledge learned during classes with several practical activities. They can provide a huge integration between the students and the professors in order to achieve better results in the pedagogical, structural and organizational parts of an engineering major degree. Therefore, the project goes through the impact of each entity in the student's life and the advantages to professional future, focusing the presence of these organizations in the Electrical Engineering Course of Federal University of Rio Grande do Norte.展开更多
Cellulose nanocrystals (CNCs), a unique and promising natural material extracted from native cellulose, have attracted considerable attention owing to their physical properties and special surface chemistry. This...Cellulose nanocrystals (CNCs), a unique and promising natural material extracted from native cellulose, have attracted considerable attention owing to their physical properties and special surface chemistry. This review focuses on chemical conjugation strategies that can be used for preparation of ?uorescent-molecule labeled CNCs and the development of biomaterials. Furthermore, their application in the detection of metal ions and future development prospects are discussed. We hope to provide a clear view of the strategies for surface fluorescent modifcation of CNCs and their application in detection of metal ions.展开更多
With the evolutionary change in information and communication technologies (ICT), the definition of literacy has undergone substantial change to include the skills and strategies required to successfully adapt to th...With the evolutionary change in information and communication technologies (ICT), the definition of literacy has undergone substantial change to include the skills and strategies required to successfully adapt to the rapidly changing ICT contexts. This new definition presents an urgent need to acknowledge the gap between the types of reading experiences students come across at school and those they regularly practice outside the school. One way to bridge such gap is to expand the reading instruction to incorporate electronic reading device, like Kindle, to engage students in electronic reading. Many e-books feature multimodal functionalities, including audio, video, hyperlinks, and interactive tools. Research on this form of reading is still in its infancy in spite of some positive prospects for fostering literacy development and reading comprehension. Therefore, adopting a mixed method approach with 36 college freshmen in central Taiwan, the current study intended to fill in the void by investigating any difference in readers' reading comprehension and reading motivation, between the Kindle group and the print-based group. The results indicate that embedding aspects of technology into a traditional reading instruction boosted the participants' motivation to read. Nevertheless, the novelty-driven enthusiasm for electronic reading might not sustain students' reading motivation long enough to cultivate long-lasting reading habits. The results indicate that there was no significant difference in reading comprehension between two groups. Implications for utilizing electronic readers in EFL classes are also provided.展开更多
Laparoscopic surgery is a recent minimally invasive technological innovation that conforms to the idea of endoscopic surgery. With the rapid development of science and technology, gynecological surgery has been widely...Laparoscopic surgery is a recent minimally invasive technological innovation that conforms to the idea of endoscopic surgery. With the rapid development of science and technology, gynecological surgery has been widely used laparoscopic technology, greatly improved the gynecological problems. The survey found that China's laparoscopic technology and foreign laparoscopic technology were the same leveL Laparoscopic technology has become more and more mature in recent years, laparoscopic technology in the field of gynecology has been applied year after year, after many clinical trials, gets some experience and progress. This article explores the development of laparoscopic surgery in the field of gynecology and the limitations and solutions to discuss, promoting gynecological development, so that the majority of patients benefit from it.展开更多
The unique properties of carbon quantum dots (CQDs) make them promising materials in many ?elds. Herein, we present a facile method for the preparation of photo-luminescent CQDs using humins as the carbon precursor...The unique properties of carbon quantum dots (CQDs) make them promising materials in many ?elds. Herein, we present a facile method for the preparation of photo-luminescent CQDs using humins as the carbon precursor for the purpose of providing a high value-added solution for this “biomass conversion process waste”. The structure of the CQDs was analyzed, and the effects of reaction temperature and time on the CQDs’ ?uorescence were investigated. The results showed that humins were effectively carbonized during the reaction. The ?uorescence intensity of humin-based CQDs initially increased with reaction temperature and time, and subsequently decreased beyond 200℃ and 4 h. Polyaromatic structures and hydrophilic groups such as O-H, C-O, -COOH and C==O groups exist in the CQDs. The humin-based CQDs have the dimension of 3~7 nm with an average size of about 5.5 nm. The highest emission intensity of blue/cyan ?uorescence light at 440 nm is achieved on the excitation with UV light at the wavelength of 330 nm.展开更多
According to features of current undergraduate curriculum design in the teaching of art and science, and combing exploration and the problems that exist during the process of teaching of basic theory of art and scienc...According to features of current undergraduate curriculum design in the teaching of art and science, and combing exploration and the problems that exist during the process of teaching of basic theory of art and science, this paper taking design courses of interactive introduction for example, it tries to innovate classroom teaching methods of exhibition of art and technology, interactive art and technology are principle theoretical classes of their major. Making good use of initiative of self- learning is the core element to help students in subjects learning, we constantly improve and perfect teaching concepts and classroom teaching mode to create the space for students to learn and explore actively, make personalized study according to their own characteristics, we make students experience the interest of freedom, autonomy, inquiry learning, enjoy the delight of appearance of personality and vitality of the burst of life vigor. Combining personal teaching experience, we should explore the way to led art students to learn with initiative in principle theoretical classes of their major.展开更多
AIM: To determine cytomegalovirus (CMV) frequency in neonatal intrahepatic cholestasis by serology, histological revision (searching for cytomegalic cells), immunohistochemistry, and polymerase chain reaction (PCR), a...AIM: To determine cytomegalovirus (CMV) frequency in neonatal intrahepatic cholestasis by serology, histological revision (searching for cytomegalic cells), immunohistochemistry, and polymerase chain reaction (PCR), and to verify the relationships among these methods.METHODS: The study comprised 101 non-consecutive infants submitted for hepatic biopsy between March 1982 and December 2005. Serological results were obtained from the patient's f iles and the other methods were performed on paraffin-embedded liver samples from hepatic biopsies. The following statistical measures were calculated: frequency, sensibility, specif ic positive predictive value, negative predictive value, and accuracy.RESULTS: The frequencies of positive results were as follows: serology, 7/64 (11%); histological revision, 0/84; immunohistochemistry, 1/44 (2%), and PCR, 6/77 (8%). Only one patient had positive immunohistochemical fi ndings and a positive PCR. The following statistical measures were calculated between PCR and serology: sensitivity, 33.3%; specificity, 88.89%; positive predictive value, 28.57%; negative predictive value, 90.91%; and accuracy, 82.35%. CONCLUSION: The frequency of positive CMV varied among the tests. Serology presented the highest positive frequency. When compared to PCR, the sensitivity and positive predictive value of serology were low.展开更多
As an emerging discipline which interrelates with musicology and iconology, the Music Iconography in China is still at the beginning stage. In the past 30 years, its research methods have been the focus of debate in r...As an emerging discipline which interrelates with musicology and iconology, the Music Iconography in China is still at the beginning stage. In the past 30 years, its research methods have been the focus of debate in regard to its academic direction, academic position, and academic path. These three "academic problems" should be paid attention because they not only sustain our current research and construction of Music Iconography's future and destiny, but also become major theoretical and practical issues. The author advocates that the academic direction should maintain highly consistent with the reality of China, as well as the academic practice. In order to guarantee the academic direction and academic position, we should adopt the academic path from these two aspects: "the horizontal logic" and "the longitudinal logic"展开更多
Mining subject needs further development and towards which the development would bebeing the problems concerned over all along and to be succeded with the public good enough attention to discussions to reacb an identn...Mining subject needs further development and towards which the development would bebeing the problems concerned over all along and to be succeded with the public good enough attention to discussions to reacb an identny of vicws admittedly. The emcrgcnce in succession of newand-hish techs in the mid-and late twentieth century is perhaps tbe most fascinating and epochmarking event that bas given to an the subjects certain but different degrees of Anpacts to becomemore closely interretative and interdepartmentai each other and fcature specifically from that of thepast for their entirely new conceptions in the result of formutating many new theories, new technologies and new subjects that mining subject is inevitably and unexceptionally the one inclusive.The author gives in this paper his opinion regardjng the problern of tbe deve1opmcnt of mining subject proving with many convincible facts and most in formative new ideas.展开更多
文摘The Green and Sustainable Chemistry Network (GSCN) has been promoting GSC technology development since 2000 in three major activities, holding the GSC symposium, running the GSC Awards, and providing the information related to GSC in Japan. GSCN holds a vision to expand the philosophy of GSC not only to the domestic, but also to the global. As for a regional network in Asia and Oceania, we established the Asia-Oceania GSC Network, and we hope to expand the Network to all countries.
文摘Modern science and technology is being developed towards destroying human and human calls for a new era of science & technology. Contemporary science is seeing a significant breakthrough and a new revolution of science and technology is beginning. The theoretical basis of the new revolution of science and technology is "state space-time", "the unity of physics and biology", "thinking motion and automatic organization of the universe" and "thinking's active control". The new revolution of science and technology takes material (microscopic particle) science, life (organic and inorganic life) science and thinking science as the fundamental sciences, takes life technology, new information technology, new material technology and new energy technology as the basis of the overall technological system, progresses in all aspects, including life technology, medicine, new material technology, new information technology, new energy technology, new robot technology, new manufacturing technology, laser technology, astronavigation technology, ocean technology, military technology, new educational technology, etc., and at the same time Qigong technology with thinking control as its core will emerge. In the era of life, thinking and Qigong technology, technology proceeds very rapidly, global society and economy develop at a high speed, and globalization is accelerated. Life, thinking and Qigong technologies feature improvement of human internal energy and quality, purify human soul, reduce material desire, and greatly reduce environmental disruption. The overall (thinking and Qigong) technology takes the establishment of the cosmic era of human as its ultimate goal.
基金the Johan GadolinScholarship Programme at the Johan Gadolin Process Chemistry Centre at Abo Akademi University (Finland)the National Natural Science Foundation of China (No. 31470609)
文摘In this study, the characteristics of nanocellulose extracted from bleached softwood and hardwood pulps by formic acid hydrolysis followed by TEMPO-mediated oxidation were compared using transmission electron microscopy(TEM), atomic force microscopy(AFM), Fourier transform infrared analysis(FT-IR), X-ray diffraction(XRD), and thermal gravimetric analysis(TGA). The experimental results showed that the nanocellulose products derived from spruce pulp exhibited a relatively larger particle size, higher crystallinity, and higher thermal stability, compared with the corresponding products obtained from aspen pulp under the same conditions.Furthermore, the study helped establish that the properties of the nanocellulose products were highly dependent on the nature of the starting materials under identical processing conditions.
基金the special fund for Independent Innovation and Industry Development in the Core Area in Haidian District of Beijing (255-kjc020)
文摘Nanocellulose(NC) has attracted much interest in the tissue engineering(TE) field because of its properties including biocompatibility,renewability, non-toxicity, functionality, and excellent mechanical performance. This review mainly focused on the advanced applications of NC-based composites in hard TE including cartilage TE, bone TE, and dental TE, illustrated the processing methods for synthesizing scaffolds including electrospinning, freeze-drying, and 3 D printing, reviewed the current status of hard TE, and presented perspective on the future of TE technology.
文摘The project analyzes the student's participation in complementary activities such as Education Tutorial Program, Junior Company and Academic Center. These organizations have the goal to improve, expand and connect knowledge learned during classes with several practical activities. They can provide a huge integration between the students and the professors in order to achieve better results in the pedagogical, structural and organizational parts of an engineering major degree. Therefore, the project goes through the impact of each entity in the student's life and the advantages to professional future, focusing the presence of these organizations in the Electrical Engineering Course of Federal University of Rio Grande do Norte.
基金the National Natural Science Foundation of China (51373131)Fundamental Research Funds for the Central Universities (XDJK2016A017 and XDJK2016C033 )+1 种基金Project of Basic Science and Advanced Technology Research, Chongqing Science and Technology Commission (cstc2016, jcyjA0796)the Talent Project of Southwest University (SWU115034)
文摘Cellulose nanocrystals (CNCs), a unique and promising natural material extracted from native cellulose, have attracted considerable attention owing to their physical properties and special surface chemistry. This review focuses on chemical conjugation strategies that can be used for preparation of ?uorescent-molecule labeled CNCs and the development of biomaterials. Furthermore, their application in the detection of metal ions and future development prospects are discussed. We hope to provide a clear view of the strategies for surface fluorescent modifcation of CNCs and their application in detection of metal ions.
文摘With the evolutionary change in information and communication technologies (ICT), the definition of literacy has undergone substantial change to include the skills and strategies required to successfully adapt to the rapidly changing ICT contexts. This new definition presents an urgent need to acknowledge the gap between the types of reading experiences students come across at school and those they regularly practice outside the school. One way to bridge such gap is to expand the reading instruction to incorporate electronic reading device, like Kindle, to engage students in electronic reading. Many e-books feature multimodal functionalities, including audio, video, hyperlinks, and interactive tools. Research on this form of reading is still in its infancy in spite of some positive prospects for fostering literacy development and reading comprehension. Therefore, adopting a mixed method approach with 36 college freshmen in central Taiwan, the current study intended to fill in the void by investigating any difference in readers' reading comprehension and reading motivation, between the Kindle group and the print-based group. The results indicate that embedding aspects of technology into a traditional reading instruction boosted the participants' motivation to read. Nevertheless, the novelty-driven enthusiasm for electronic reading might not sustain students' reading motivation long enough to cultivate long-lasting reading habits. The results indicate that there was no significant difference in reading comprehension between two groups. Implications for utilizing electronic readers in EFL classes are also provided.
文摘Laparoscopic surgery is a recent minimally invasive technological innovation that conforms to the idea of endoscopic surgery. With the rapid development of science and technology, gynecological surgery has been widely used laparoscopic technology, greatly improved the gynecological problems. The survey found that China's laparoscopic technology and foreign laparoscopic technology were the same leveL Laparoscopic technology has become more and more mature in recent years, laparoscopic technology in the field of gynecology has been applied year after year, after many clinical trials, gets some experience and progress. This article explores the development of laparoscopic surgery in the field of gynecology and the limitations and solutions to discuss, promoting gynecological development, so that the majority of patients benefit from it.
基金supported by the Research Project for Hot Tracking Items of Beijing Forestry University(2017BLRD03)the National Natural Science Foundation of China(51603012)Beijing Municipal Natural Science Foundation(6182031)
文摘The unique properties of carbon quantum dots (CQDs) make them promising materials in many ?elds. Herein, we present a facile method for the preparation of photo-luminescent CQDs using humins as the carbon precursor for the purpose of providing a high value-added solution for this “biomass conversion process waste”. The structure of the CQDs was analyzed, and the effects of reaction temperature and time on the CQDs’ ?uorescence were investigated. The results showed that humins were effectively carbonized during the reaction. The ?uorescence intensity of humin-based CQDs initially increased with reaction temperature and time, and subsequently decreased beyond 200℃ and 4 h. Polyaromatic structures and hydrophilic groups such as O-H, C-O, -COOH and C==O groups exist in the CQDs. The humin-based CQDs have the dimension of 3~7 nm with an average size of about 5.5 nm. The highest emission intensity of blue/cyan ?uorescence light at 440 nm is achieved on the excitation with UV light at the wavelength of 330 nm.
文摘According to features of current undergraduate curriculum design in the teaching of art and science, and combing exploration and the problems that exist during the process of teaching of basic theory of art and science, this paper taking design courses of interactive introduction for example, it tries to innovate classroom teaching methods of exhibition of art and technology, interactive art and technology are principle theoretical classes of their major. Making good use of initiative of self- learning is the core element to help students in subjects learning, we constantly improve and perfect teaching concepts and classroom teaching mode to create the space for students to learn and explore actively, make personalized study according to their own characteristics, we make students experience the interest of freedom, autonomy, inquiry learning, enjoy the delight of appearance of personality and vitality of the burst of life vigor. Combining personal teaching experience, we should explore the way to led art students to learn with initiative in principle theoretical classes of their major.
基金Supported by The State of So Paulo Research Foundation (Fapesp)and the Coordination for Higher Level Graduates Improvement (Capes)
文摘AIM: To determine cytomegalovirus (CMV) frequency in neonatal intrahepatic cholestasis by serology, histological revision (searching for cytomegalic cells), immunohistochemistry, and polymerase chain reaction (PCR), and to verify the relationships among these methods.METHODS: The study comprised 101 non-consecutive infants submitted for hepatic biopsy between March 1982 and December 2005. Serological results were obtained from the patient's f iles and the other methods were performed on paraffin-embedded liver samples from hepatic biopsies. The following statistical measures were calculated: frequency, sensibility, specif ic positive predictive value, negative predictive value, and accuracy.RESULTS: The frequencies of positive results were as follows: serology, 7/64 (11%); histological revision, 0/84; immunohistochemistry, 1/44 (2%), and PCR, 6/77 (8%). Only one patient had positive immunohistochemical fi ndings and a positive PCR. The following statistical measures were calculated between PCR and serology: sensitivity, 33.3%; specificity, 88.89%; positive predictive value, 28.57%; negative predictive value, 90.91%; and accuracy, 82.35%. CONCLUSION: The frequency of positive CMV varied among the tests. Serology presented the highest positive frequency. When compared to PCR, the sensitivity and positive predictive value of serology were low.
文摘As an emerging discipline which interrelates with musicology and iconology, the Music Iconography in China is still at the beginning stage. In the past 30 years, its research methods have been the focus of debate in regard to its academic direction, academic position, and academic path. These three "academic problems" should be paid attention because they not only sustain our current research and construction of Music Iconography's future and destiny, but also become major theoretical and practical issues. The author advocates that the academic direction should maintain highly consistent with the reality of China, as well as the academic practice. In order to guarantee the academic direction and academic position, we should adopt the academic path from these two aspects: "the horizontal logic" and "the longitudinal logic"
文摘Mining subject needs further development and towards which the development would bebeing the problems concerned over all along and to be succeded with the public good enough attention to discussions to reacb an identny of vicws admittedly. The emcrgcnce in succession of newand-hish techs in the mid-and late twentieth century is perhaps tbe most fascinating and epochmarking event that bas given to an the subjects certain but different degrees of Anpacts to becomemore closely interretative and interdepartmentai each other and fcature specifically from that of thepast for their entirely new conceptions in the result of formutating many new theories, new technologies and new subjects that mining subject is inevitably and unexceptionally the one inclusive.The author gives in this paper his opinion regardjng the problern of tbe deve1opmcnt of mining subject proving with many convincible facts and most in formative new ideas.