As an information-rich collective, there are always some people who choose to take risks for some ulterior purpose and others are committed to finding ways to deal with database security threats. The purpose of databa...As an information-rich collective, there are always some people who choose to take risks for some ulterior purpose and others are committed to finding ways to deal with database security threats. The purpose of database security research is to prevent the database from being illegally used or destroyed. This paper introduces the main literature in the field of database security research in recent years. First of all, we classify these papers, the classification criteria </span><span style="font-size:12px;font-family:Verdana;">are</span><span style="font-size:12px;font-family:Verdana;"> the influencing factors of database security. Compared with the traditional and machine learning (ML) methods, some explanations of concepts are interspersed to make these methods easier to understand. Secondly, we find that the related research has achieved some gratifying results, but there are also some shortcomings, such as weak generalization, deviation from reality. Then, possible future work in this research is proposed. Finally, we summarize the main contribution.展开更多
Weather extremes negatively affect socioeconomic developments in arid and semi-arid areas (ASALs) and increase vulnerability of residents to food and water insecurity. Thus, communities adapt to such extremes of weath...Weather extremes negatively affect socioeconomic developments in arid and semi-arid areas (ASALs) and increase vulnerability of residents to food and water insecurity. Thus, communities adapt to such extremes of weather using Traditional Ecological Knowledge (TEK) and/or Modern Technologies. Modern farming technologies and land resource developments in ASALs have in past ignored TEK, and in most cases led to undesired outcomes. It’s against this backdrop that this study was conceived to assess TEK among the Turkana people, its application and contribution to food and water security. The research adopted a cross-sectional social survey in collecting data from Central Turkana Sub-County residents. The study revealed that the Turkana people possess vast knowledge related to their environment;that this TEK plays a significant role in food production, preservation and in natural resource management. For instance, in 82% of the respondents use TEK in enhancing livestock production through the selection of livestock species that are suitable and drought tolerant;over 70% of them use TEK in reducing risk associated with livestock losses due to prolonged droughts. Further, TEK influenced the development and conservation of the water resources (r = 0.631;p < 0.01) including siting boreholes and wells. There was a strong correlation (r = 0.755;p < 0.01) between TEK and food security. TEK should be incorporated into the decision-making processes involving development projects within the ASALs.展开更多
Sokoto Emirate was one of the three(later four)constituent emirates in colonial Sokoto Province,Northern Nigeria.The others being Sokoto,Gwandu,Argungu,and Yauri Emirates.It is located at the northwestern most part of...Sokoto Emirate was one of the three(later four)constituent emirates in colonial Sokoto Province,Northern Nigeria.The others being Sokoto,Gwandu,Argungu,and Yauri Emirates.It is located at the northwestern most part of Nigeria.The Sokoto Emirate covers the present day Sokoto and Zamfara states of Nigeria.During the British colonial administration,native authority(NA)system was a model of local government administration created under the“indirect rule system”.It was a system where by the pre-colonial traditional leadership institutions were modified and allowed to function in the local government administration introduced by the British.This paper assessed the role played by traditional leadership institutions in addressing security challenges during the British colonial administration of Sokoto Emirate.In particular,the role played by the NA in arresting Mahdist uprisings,and other related extremist religious movements on the one hand,as well as rural banditry,armed robbery,theft,among other security challenges in the emirate,are highlighted.The paper further argued that some of the roles played by the traditional leadership institutions in successfully addressing those challenges are still relevant in addressing the problems of insurgency on the one hand,and some of the recent emerging security challenges,in northwestern Nigeria,such as cattle rustling,rural banditry,kidnappings,robbery,and other related challenges.展开更多
The objective of this paper is to examine an effective strategy for maintaining and utilizing the traditional arts resources of Japan. The authors explore two pillars of the strategy. One is to improve the quality of ...The objective of this paper is to examine an effective strategy for maintaining and utilizing the traditional arts resources of Japan. The authors explore two pillars of the strategy. One is to improve the quality of Japanese traditional performing arts by securing incomes for artists. The other is to utilize the traditional arts as a medium to expand Japanese cultural influence in foreign countries and to improve Japan's branding as a nation. First, the authors focus on the income security system practiced in traditional Japanese music and describe the discrepancy between short- and long-run optimality. The authors prove that the reputation of this art form affects its popularity and that it is optimal for the Iemoto (the head of the music school) to restrict the number of pupils in onstage performances in order to maintain stage quality. Second, the authors provide evidence that effective methods for a country to expand its cultural influence across the world differ among nations. The authors conduct willingness-to-pay (WTP) experiments and find that while German audiences largely prefer traditional Japanese music, those in the USA are slightly partial to its mixed fusion form. Therefore, the effective ways to expand Japanese cultural influence in foreign countries differ from one country to another.展开更多
Objective To evaluate the efficacy and safety of traditional Chinese medicine(TCM)compounds for the treatment of functional dyspepsia(FD).Methods The Pub Med,Embase,Cochrane Library,Web of Science,Chinese Biomedical D...Objective To evaluate the efficacy and safety of traditional Chinese medicine(TCM)compounds for the treatment of functional dyspepsia(FD).Methods The Pub Med,Embase,Cochrane Library,Web of Science,Chinese Biomedical Database(CBM),Wanfang Data,China National Knowledge Infrastructure(CNKI),and China Science and Technology Journal Database(VIP)were searched to collect randomized,double-blind,and placebo-controlled trials of FD treated with TCM compounds.The search duration was from the establishment of the database to March 2,2021.After two researchers independently screened the literature,extracted the data,and evaluated the bias risk included in the study,they used Rev Man 5.4 software for meta-analysis.Results A total of 23 clinical trials were included,including 2898 patients.Meta-analysis showed that the overall remission rate of FD treated with TCM compounds was significantly higher than that of placebo(73.8%vs.46.2%)[RR=1.50,95%CI(1.29,1.76),P<0.00001].Among the single symptoms,TCM compounds were superior to the placebo in improving epigastric pain[MD=﹣0.99,95%CI(﹣1.37,﹣0.61),P<0.00001],epigastric burning sensation[MD=﹣0.32,95%CI(﹣0.59,﹣0.05),P=0.02],postprandial fullness discomfort[MD=﹣1.59,95%CI(﹣1.96,﹣1.21),P<0.00001],and early satiety symptoms[MD=﹣0.93,95%CI(﹣1.32,﹣0.54),P<0.00001].Compared with the placebo,TCM compounds treatment can obviously improve TCM syndrome in patients with FD[MD=﹣5.58,95%CI(﹣7.55,﹣3.61),P<0.00001],gastric emptying rate[MD=12.22,95%CI(8.90,15.55),P<0.00001],and helped to improve patients’quality of life[MD=11.27,95%CI(0.10,22.43),P=0.05].No severe adverse events were reported between the two groups[RR=1.34,95%CI(0.91,1.96),P=0.14].Conclusion Our results showed that TCM compounds treatment could significantly alleviate FD symptoms,improve gastric emptying in FD patients,and help to improve their quality of life.No severe adverse reactions have been reported in clinical applications.Due to the limitation of the quantity and quality of the included studies,the above conclusions need to be verified by more high-quality studies.展开更多
India is endowed with diverse and distinctive traditional water bodies. They support large human population and biodiversity but are under continuous stress, caused primarily by demographic pressure and unplanned grow...India is endowed with diverse and distinctive traditional water bodies. They support large human population and biodiversity but are under continuous stress, caused primarily by demographic pressure and unplanned growth. There has been a decline in their water quality and quantity and several of them have vanished, thanks to improper monitoring of these water bodies. This research study was conducted in Meerut district to help government in identifying status of traditional water bodies and suggest steps necessary for protection of these water bodies. Similar research framework, with minor customization, could be applied to any other district in India. Meerut district, with a population of around 3.5 million people is in an abysmal state as the rivers and groundwater are highly polluted. The last resort—the traditional water bodies are also getting transformed into sewage ponds. A field based research was undertaken—which involved on-ground survey using GPS, GIS mapping & water quality testing of 120 ponds, distributed across 12 blocks of Meerut district to acquire a practical understanding of the status of these water bodies. The research team also did an informal discussion with around 500 residents, located nearby ponds, to understand the water situation of the locality. Results show that more than 50% of water bodies are severely polluted (with D.O below 5mg/l) and total dissolved solids (more than 100 NTU). Fecal contamination was observed in all the ponds that were analyzed. The major problems are excessive nutrient pollution, leading to eutrophication, and sewage contamination. The spatial analysis finds out that around half the ponds have reduced in area. With around 100 upcoming cities in India and most of the cities already experiencing water scarcity, it is essential to digitize, monitor, control & prevent pollution and most essentially make the people and grassroots institutions aware in order to protect these essential water bodies from getting extinct.展开更多
Agroecological practices are promoted as a more proactive approach than conventional agriculture to achieving a collective global response to climate change and variability while building robust and resilient agricult...Agroecological practices are promoted as a more proactive approach than conventional agriculture to achieving a collective global response to climate change and variability while building robust and resilient agricultural systems to meet food needs and protect the integrity of ecosystems.There is relatively limited evidence on the key traditional agroecological knowledge and practices adopted by smallholder farmers,the factors that influence smallholder farmers’decision to adopt these practices,and the opportunities it presents for building resilient agricultural systems.Using a multi-scale mixed method approach,we conducted key informant interviews(n=12),focus group discussions(n=5),and questionnaire surveys(N=220)to explore the traditional agroecological knowledge and practices,the influencing factors,and the opportunities smallholder farmers presented for achieving resilient agricultural systems.Our findings suggest that smallholder farmers employ a suite of traditional agroecological knowledge and practices to enhance food security,combat climate change,and build resilient agricultural systems.The most important traditional agroecological knowledge and practices in the study area comprise cultivating leguminous crops,mixed crop-livestock systems,and crop rotation,with Relative Importance Index(RII)values of 0.710,0.708,and 0.695,respectively.It is reported that the choice of these practices by smallholder farmers is influenced by their own farming experience,access to market,access to local resources,information,and expertise,and the perceived risk of climate change.Moreover,the results further show that improving household food security and nutrition,improving soil quality,control of pest and disease infestation,and support from NonGovernmental Organizations(NGOs)and local authorities are opportunities for smallholder farmers in adopting traditional agroecological knowledge and practices for achieving resilient agricultural systems.The findings call into question the need for stakeholders and policy-makers at all levels to develop capacity and increase the awareness of traditional agroecological knowledge and practices as mechanisms to ensure resilient agricultural systems for sustainable food security.展开更多
文摘As an information-rich collective, there are always some people who choose to take risks for some ulterior purpose and others are committed to finding ways to deal with database security threats. The purpose of database security research is to prevent the database from being illegally used or destroyed. This paper introduces the main literature in the field of database security research in recent years. First of all, we classify these papers, the classification criteria </span><span style="font-size:12px;font-family:Verdana;">are</span><span style="font-size:12px;font-family:Verdana;"> the influencing factors of database security. Compared with the traditional and machine learning (ML) methods, some explanations of concepts are interspersed to make these methods easier to understand. Secondly, we find that the related research has achieved some gratifying results, but there are also some shortcomings, such as weak generalization, deviation from reality. Then, possible future work in this research is proposed. Finally, we summarize the main contribution.
文摘Weather extremes negatively affect socioeconomic developments in arid and semi-arid areas (ASALs) and increase vulnerability of residents to food and water insecurity. Thus, communities adapt to such extremes of weather using Traditional Ecological Knowledge (TEK) and/or Modern Technologies. Modern farming technologies and land resource developments in ASALs have in past ignored TEK, and in most cases led to undesired outcomes. It’s against this backdrop that this study was conceived to assess TEK among the Turkana people, its application and contribution to food and water security. The research adopted a cross-sectional social survey in collecting data from Central Turkana Sub-County residents. The study revealed that the Turkana people possess vast knowledge related to their environment;that this TEK plays a significant role in food production, preservation and in natural resource management. For instance, in 82% of the respondents use TEK in enhancing livestock production through the selection of livestock species that are suitable and drought tolerant;over 70% of them use TEK in reducing risk associated with livestock losses due to prolonged droughts. Further, TEK influenced the development and conservation of the water resources (r = 0.631;p < 0.01) including siting boreholes and wells. There was a strong correlation (r = 0.755;p < 0.01) between TEK and food security. TEK should be incorporated into the decision-making processes involving development projects within the ASALs.
文摘Sokoto Emirate was one of the three(later four)constituent emirates in colonial Sokoto Province,Northern Nigeria.The others being Sokoto,Gwandu,Argungu,and Yauri Emirates.It is located at the northwestern most part of Nigeria.The Sokoto Emirate covers the present day Sokoto and Zamfara states of Nigeria.During the British colonial administration,native authority(NA)system was a model of local government administration created under the“indirect rule system”.It was a system where by the pre-colonial traditional leadership institutions were modified and allowed to function in the local government administration introduced by the British.This paper assessed the role played by traditional leadership institutions in addressing security challenges during the British colonial administration of Sokoto Emirate.In particular,the role played by the NA in arresting Mahdist uprisings,and other related extremist religious movements on the one hand,as well as rural banditry,armed robbery,theft,among other security challenges in the emirate,are highlighted.The paper further argued that some of the roles played by the traditional leadership institutions in successfully addressing those challenges are still relevant in addressing the problems of insurgency on the one hand,and some of the recent emerging security challenges,in northwestern Nigeria,such as cattle rustling,rural banditry,kidnappings,robbery,and other related challenges.
文摘The objective of this paper is to examine an effective strategy for maintaining and utilizing the traditional arts resources of Japan. The authors explore two pillars of the strategy. One is to improve the quality of Japanese traditional performing arts by securing incomes for artists. The other is to utilize the traditional arts as a medium to expand Japanese cultural influence in foreign countries and to improve Japan's branding as a nation. First, the authors focus on the income security system practiced in traditional Japanese music and describe the discrepancy between short- and long-run optimality. The authors prove that the reputation of this art form affects its popularity and that it is optimal for the Iemoto (the head of the music school) to restrict the number of pupils in onstage performances in order to maintain stage quality. Second, the authors provide evidence that effective methods for a country to expand its cultural influence across the world differ among nations. The authors conduct willingness-to-pay (WTP) experiments and find that while German audiences largely prefer traditional Japanese music, those in the USA are slightly partial to its mixed fusion form. Therefore, the effective ways to expand Japanese cultural influence in foreign countries differ from one country to another.
基金funding support from the National Natural Science Foundation of China Project(No.81820108033)the Project of Wangjing Hospital,China Academy of Chinese Medical Sciences(No.WJYY2020-18)。
文摘Objective To evaluate the efficacy and safety of traditional Chinese medicine(TCM)compounds for the treatment of functional dyspepsia(FD).Methods The Pub Med,Embase,Cochrane Library,Web of Science,Chinese Biomedical Database(CBM),Wanfang Data,China National Knowledge Infrastructure(CNKI),and China Science and Technology Journal Database(VIP)were searched to collect randomized,double-blind,and placebo-controlled trials of FD treated with TCM compounds.The search duration was from the establishment of the database to March 2,2021.After two researchers independently screened the literature,extracted the data,and evaluated the bias risk included in the study,they used Rev Man 5.4 software for meta-analysis.Results A total of 23 clinical trials were included,including 2898 patients.Meta-analysis showed that the overall remission rate of FD treated with TCM compounds was significantly higher than that of placebo(73.8%vs.46.2%)[RR=1.50,95%CI(1.29,1.76),P<0.00001].Among the single symptoms,TCM compounds were superior to the placebo in improving epigastric pain[MD=﹣0.99,95%CI(﹣1.37,﹣0.61),P<0.00001],epigastric burning sensation[MD=﹣0.32,95%CI(﹣0.59,﹣0.05),P=0.02],postprandial fullness discomfort[MD=﹣1.59,95%CI(﹣1.96,﹣1.21),P<0.00001],and early satiety symptoms[MD=﹣0.93,95%CI(﹣1.32,﹣0.54),P<0.00001].Compared with the placebo,TCM compounds treatment can obviously improve TCM syndrome in patients with FD[MD=﹣5.58,95%CI(﹣7.55,﹣3.61),P<0.00001],gastric emptying rate[MD=12.22,95%CI(8.90,15.55),P<0.00001],and helped to improve patients’quality of life[MD=11.27,95%CI(0.10,22.43),P=0.05].No severe adverse events were reported between the two groups[RR=1.34,95%CI(0.91,1.96),P=0.14].Conclusion Our results showed that TCM compounds treatment could significantly alleviate FD symptoms,improve gastric emptying in FD patients,and help to improve their quality of life.No severe adverse reactions have been reported in clinical applications.Due to the limitation of the quantity and quality of the included studies,the above conclusions need to be verified by more high-quality studies.
文摘India is endowed with diverse and distinctive traditional water bodies. They support large human population and biodiversity but are under continuous stress, caused primarily by demographic pressure and unplanned growth. There has been a decline in their water quality and quantity and several of them have vanished, thanks to improper monitoring of these water bodies. This research study was conducted in Meerut district to help government in identifying status of traditional water bodies and suggest steps necessary for protection of these water bodies. Similar research framework, with minor customization, could be applied to any other district in India. Meerut district, with a population of around 3.5 million people is in an abysmal state as the rivers and groundwater are highly polluted. The last resort—the traditional water bodies are also getting transformed into sewage ponds. A field based research was undertaken—which involved on-ground survey using GPS, GIS mapping & water quality testing of 120 ponds, distributed across 12 blocks of Meerut district to acquire a practical understanding of the status of these water bodies. The research team also did an informal discussion with around 500 residents, located nearby ponds, to understand the water situation of the locality. Results show that more than 50% of water bodies are severely polluted (with D.O below 5mg/l) and total dissolved solids (more than 100 NTU). Fecal contamination was observed in all the ponds that were analyzed. The major problems are excessive nutrient pollution, leading to eutrophication, and sewage contamination. The spatial analysis finds out that around half the ponds have reduced in area. With around 100 upcoming cities in India and most of the cities already experiencing water scarcity, it is essential to digitize, monitor, control & prevent pollution and most essentially make the people and grassroots institutions aware in order to protect these essential water bodies from getting extinct.
文摘Agroecological practices are promoted as a more proactive approach than conventional agriculture to achieving a collective global response to climate change and variability while building robust and resilient agricultural systems to meet food needs and protect the integrity of ecosystems.There is relatively limited evidence on the key traditional agroecological knowledge and practices adopted by smallholder farmers,the factors that influence smallholder farmers’decision to adopt these practices,and the opportunities it presents for building resilient agricultural systems.Using a multi-scale mixed method approach,we conducted key informant interviews(n=12),focus group discussions(n=5),and questionnaire surveys(N=220)to explore the traditional agroecological knowledge and practices,the influencing factors,and the opportunities smallholder farmers presented for achieving resilient agricultural systems.Our findings suggest that smallholder farmers employ a suite of traditional agroecological knowledge and practices to enhance food security,combat climate change,and build resilient agricultural systems.The most important traditional agroecological knowledge and practices in the study area comprise cultivating leguminous crops,mixed crop-livestock systems,and crop rotation,with Relative Importance Index(RII)values of 0.710,0.708,and 0.695,respectively.It is reported that the choice of these practices by smallholder farmers is influenced by their own farming experience,access to market,access to local resources,information,and expertise,and the perceived risk of climate change.Moreover,the results further show that improving household food security and nutrition,improving soil quality,control of pest and disease infestation,and support from NonGovernmental Organizations(NGOs)and local authorities are opportunities for smallholder farmers in adopting traditional agroecological knowledge and practices for achieving resilient agricultural systems.The findings call into question the need for stakeholders and policy-makers at all levels to develop capacity and increase the awareness of traditional agroecological knowledge and practices as mechanisms to ensure resilient agricultural systems for sustainable food security.