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Principle for the Installation of Accommodation for Sick guards in Public Health Establishments in Brazzaville in the Republic of Congo
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作者 Alain Symphorien Ndongo Destin Gemetone Etou Christian Tathy 《Journal of Environmental Science and Engineering(B)》 CAS 2024年第2期70-79,共10页
The results of scientific studies of human social facts in the field of health show that the management of a patient should involve the patient’s entourage,whatever the status or size of the health establishment.In h... The results of scientific studies of human social facts in the field of health show that the management of a patient should involve the patient’s entourage,whatever the status or size of the health establishment.In healthcare establishments in the Congo,the following are recognised as being responsible for medical care:specialist doctors,doctors,midwives,nurses and care assistants.The patient’s family and close friends are responsible for looking after the patient and financing care.The hospital infrastructure does not provide any space for the patient warden who accompany the patient during reception and hospitalisation.This makes Congolese hospitals inefficient for patient care.How can we integrate the function of the Sick guard and the assistance of the family,in order to reduce the mortality rate and repair the harm caused to patients requiring the presence of relatives during their stay in hospital,which is considered to be a dangerous place?This article examines the functional principles for configuring the space that patient warden would occupy in the patient care system.On the basis of a documentary analysis of sociological and architectural studies of existing facilities,this article proposes a typical accommodation model with the spaces needed to ensure the well-being and effectiveness of the patient warden with the patient.These are rooms with minimum space for 2 to 4 individual beds,equipped with toilets and showers.The accommodation has a dining area,kitchen and laundry facilities.In the future,this accommodation will become part of the hospital estate and may be occupied by orderlies and patient warden recruited by the hospital administration. 展开更多
关键词 Sick guard patient public health establishment ACCOMMODATION Republic of Congo
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First report on establishment and characterization of the extrahepatic cholangiocarcinoma sarcoma cell line CBC2T-2
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作者 Ning-Zu Jiang Ming-Zhen Bai +19 位作者 Chong-Fei Huang Ze-Long Ma Ru-Yang Zhong Wen-Kang Fu Long Gao Liang Tian Ning-Ning Mi Hai-Dong Ma Ya-Wen Lu Zi-Ang Zhang Jin-Yu Zhao Hai-Ying Yu Bao-Ping Zhang Xian-Zhuo Zhang Yan-Xian Ren Chao Zhang Yong Zhang Ping Yue Yan-Yan Lin Wen-Bo Meng 《World Journal of Gastroenterology》 SCIE CAS 2023年第41期5683-5698,共16页
BACKGROUND Extrahepatic cholangiocarcinoma sarcoma is extremely rare in clinical practice.These cells consist of both epithelial and mesenchymal cells.Patient-derived cell lines that maintain tumor characteristics are... BACKGROUND Extrahepatic cholangiocarcinoma sarcoma is extremely rare in clinical practice.These cells consist of both epithelial and mesenchymal cells.Patient-derived cell lines that maintain tumor characteristics are valuable tools for studying the molecular mechanisms associated with carcinosarcoma.However,cholangiocarcinoma sarcoma cell lines are not available in cell banks.AIM To establish and characterize a new extrahepatic cholangiocarcinoma sarcoma cell line,namely CBC2T-2.METHODS We conducted a short tandem repeat(STR)test to confirm the identity of the CBC2T-2 cell line.Furthermore,we assessed the migratory and invasive properties of the cells and performed clonogenicity assay to evaluate the ability of individual cells to form colonies.The tumorigenic potential of CBC2T-2 cells was tested in vivo using nonobese diabetic/severe combined immunodeficient(NOD/SCID)mice.The cells were injected subcutaneously and tumor formation was observed.In addition,immunohistochemical analysis was carried out to examine the expression of epithelial marker CK19 and mesenchymal marker vimentin in both CBC2T-2 cells and xenografts.The CBC2T-2 cell line was used to screen the potential therapeutic effects of various clinical agents in patients with cholangiocarcinoma sarcoma.Lastly,whole-exome sequencing was performed to identify genetic alterations and screen for somatic mutations in the CBC2T-2 cell line.RESULTS The STR test showed that there was no cross-contamination and the results were identical to those of the original tissue.The cells showed round or oval-shaped epithelioid cells and mesenchymal cells with spindle-shaped or elongated morphology.The cells exhibited a high proliferation ratio with a doubling time of 47.11 h.This cell line has migratory,invasive,and clonogenic abilities.The chromosomes in the CBC2T-2 cells were polyploidy,with numbers ranging from 69 to 79.The subcutaneous tumorigenic assay confirmed the in vivo tumorigenic ability of CBC2T-2 cells in NOD/SCID mice.CBC2T-2 cells and xenografts were positive for both the epithelial marker,CK19,and the mesenchymal marker,vimentin.These results suggest that CBC2T-2 cells may have both epithelial and mesenchymal characteristics.The cells were also used to screen clinical agents in patients with cholangiocarcinoma sarcoma,and a combination of paclitaxel and gemcitabine was found to be the most effective treatment option.CONCLUSION We established the first human cholangiocarcinoma sarcoma cell line,CBC2T-2,with stable biogenetic traits.This cell line,as a research model,has a high clinical value and would facilitate the understanding of the pathogenesis of cholangiocarcinoma sarcoma. 展开更多
关键词 CARCINOSARCOMA Drug resistance XENOGRAFT Cell line establishment
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5-30 Establishment of Interface Communication between Terminal System and the Treatment Planning System
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作者 Li Guihua Yang Wenjing +2 位作者 Zhao Wuyuan Ma Jinzhong Wang Rongrong 《IMP & HIRFL Annual Report》 2014年第1期240-240,共1页
Treatment of terminal system is mainly through the interface communication protocol for treatment planningsystem to achieve the control of various kinds of medical equipments, including primary collimator, range shift... Treatment of terminal system is mainly through the interface communication protocol for treatment planningsystem to achieve the control of various kinds of medical equipments, including primary collimator, range shifter,scatterer, ridge type filter, multi-leaf collimator, etc. TPS was based on the radioactive source and the patientmodeling to simulate the plan implementation of radiotherapy. The basic structure of block diagram is shown inFig. 1. 展开更多
关键词 establishment INTERFACE COMMUNICATION
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Guiding Opinions on Accelerating the Establishment and Improvement of Green and Low-carbon Circular Economic System Was Released
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《造纸信息》 2021年第9期71-72,共2页
On Februar 22~(nd),2021,the State Councilissued Guiding Opinions on Accelerating the Establishment and Improvement of Green and Low-carbon Circular Economic System(hereinafter referred to as the Guiding Opinions)Accor... On Februar 22~(nd),2021,the State Councilissued Guiding Opinions on Accelerating the Establishment and Improvement of Green and Low-carbon Circular Economic System(hereinafter referred to as the Guiding Opinions)According to the Guiding Opinions, establishing and improving the country's green. 展开更多
关键词 RELEASE CARBON establishing
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China will speed up the establishment of the standard system on information industry technology
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《China Standardization》 2006年第3期47-,共1页
关键词 WILL China will speed up the establishment of the standard system on information industry technology
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The succession of fecal bacterial community and its correlation with the changes of serum immune indicators in lambs from birth to 4 months 被引量:1
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作者 YIN Xue-jiao JI Shou-kun +5 位作者 DUAN Chun-hui TIAN Pei-zhi JU Si-si YAN Hui ZHANG Ying-jie LIU Yue-qin 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2023年第2期537-550,共14页
Early bacterial colonization and succession within the gastrointestinal tract have been suggested to be crucial in the development of host immunity.In this study,we have investigated the changes in live weight and con... Early bacterial colonization and succession within the gastrointestinal tract have been suggested to be crucial in the development of host immunity.In this study,we have investigated the changes in live weight and concentrations of selected serum parameters in relation to their fecal bacterial communities as determined by high throughput sequencing of the 16S r RNA gene over the same period in lambs.The results showed that lambs’growth performance,the serum parameters,fecal bacterial community and fecal bacterial functions were all affected(P<0.05)by age of the lambs.Similarity within age groups of fecal microbiota was lower in the preweaning period and increased sharply(P<0.05)after weaning at 60 days.The similarity between the samples collected from birth to 90 days of age and those collected at 120 days of age,increased(P<0.05)sharply after 30 days of age.Some age-associated changes in microbial genera were correlated with the changes in concentrations of immune indicators,including negative(P<0.05)correlations between the relative abundance of Lachnospiraceae UCG-010,Eubacterium coprostanoligenes group,Ruminococcaceae UCG-005,Ruminococcaceae UCG-009,Ruminococcaceae UCG-013,Ruminiclostridium 6,Ruminococcaceae UCG-008,and Oscillibacter with serum concentrations of lipopolysaccharide(LPS),D-lactate dehydrogenase(DLA),immunoglobulin(IgA,IgM,and IgG),and cytokines(interleukin-1β(IL-1β),IL-6,IL-12,and IL-17),tumor necrosis factor-α(TNF-α),and the relative abundance of these genera increased from 45 days of age.In conclusion,these results suggested that the age-related abundances of particular genera were correlated with serum markers of immunity in lambs,and there might be a critical window in the period from birth to 45 days of age which provide an opportunity for potential manipulation of the fecal microbial ecosystems to enhance immune function. 展开更多
关键词 fecal bacteria establishment sheep serum parameter early life
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Ideological and Political Elements Exploration in the Course of “Physical Geography”
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作者 Huan Wang 《Open Journal of Applied Sciences》 CAS 2023年第3期327-334,共8页
“Physical Geography” is a course to study human beings and the environment, revealing the basic characteristics, formation mechanism and development laws of various physical geography elements, with rich ideological... “Physical Geography” is a course to study human beings and the environment, revealing the basic characteristics, formation mechanism and development laws of various physical geography elements, with rich ideological and political elements and high moral value, and is an important course to cultivate geographical professional interests and enhance national pride. By fully sorting out the ideological and political resources contained in the curriculum, deeply excavating the ideological and political elements, and reasonably designing the integration, this paper analyzed the dimensions of ideological and political education in the physical geography curriculum. Taking professional knowledge as the main line, the educational elements in five aspects were refined, namely, philosophical thinking, power of a big country, patriotism, strict science, and aesthetic education. This paper established the ideological and political element system of the curriculum, and achieved the moral education of the professional curriculum moisturizing and silent effect. 展开更多
关键词 Physical Geography Curriculum Ideological and Political Education Reform in Education Establish Virtue and Cultivate People
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Bruce Lee of the Piano World
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作者 XIAO SHI 《China Today》 2023年第9期65-67,共3页
After winning the 18th International Fryderyk Chopin Piano Competition in Warsaw in 2021 and establishing himself as a rising star,pianist extraordinaire Liu Xiaoyu plans to tour China in October 2023.
关键词 PIANO BRUCE establishing
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Stand establishment,root development and yield of winter wheat as affected by tillage and straw mulch in the water deficit hilly region of southwestern China 被引量:9
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作者 LI Chao-su LI Jin-gang +4 位作者 TANG Yong-lu WU Xiao-li WU Chun HUANG Gang ZENG Hui 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2016年第7期1480-1489,共10页
Good crop stand establishment and root system development are essential for optimum grain yield of dryland wheat (Triti-cum aestivumL.). At present, little is known about the effect of tilage and straw mulch on the ... Good crop stand establishment and root system development are essential for optimum grain yield of dryland wheat (Triti-cum aestivumL.). At present, little is known about the effect of tilage and straw mulch on the root system of wheat under dryland areas in southwestern China. The aim of this study was to evaluate the effect of three tilage treatments (no-til, NT; rotary til, RT; conventional til, CT) and two crop residue management practices (straw mulch, ML; non-straw mulch, NML) on stand establishment, root growth and grain yield of wheat. NT resulted in lower soil cover thickness for the wheat seed, higher number of uncovered seeds, lower percentage of seedling-less ridges and lower tiler density compared to RT and CT; ML resulted in higher tiler density compared to NML. Straw mulching resulted in more soil water content and root length density (RLD) at most of the growth stages and soil depths. The maximum RLD, root surface area density and root dry matter density were obtained under NT. In the topmost 10 cm soil layer, higher RLD values were found under NT than those under RT and CT. There were no signiifcant differences in the yield or yield components of wheat among the tilage treatments in 2011–2012, but NT resulted in a signiifcant higher yield compared to RT and CT in 2012–2013. Grain yield was signiifcantly higher in ML compared to in NML. A strong relationship was observed between the water-use efifciency and the grain yield. Both NT and ML proved beneifcial for wheat in term of maintaining higher tiler density, better soil water status and root growth, leading to a higher grain yield and enhanced water-use efifciency, especialy in a low rainfal year. 展开更多
关键词 wheat tilage MULCH stand establishment YIELD Triticum aestivum
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Research on the Role of Democratic Parties in Colleges and Universities in Building Morality and Cultivating People: Taking the General Branch of the Democratic League of Huizhou College as an Example
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作者 Chaohui Lin 《Open Journal of Applied Sciences》 2023年第9期1556-1564,共9页
This article takes the general branch of the Huizhou College of the Democratic League of Huizhou College in recent years as an example. Through literature review, field research, case analysis, and other research meth... This article takes the general branch of the Huizhou College of the Democratic League of Huizhou College in recent years as an example. Through literature review, field research, case analysis, and other research methods, it summarized how the Democratic League of Huizhou College made good use of various activity carriers in ideological and political education. It combined discipline construction, scientific research platforms, school-government-enterprise, and other cooperation platforms. From educational methods to subject transformation and integration, and from daily teaching to social practice, it promoted the role of college teachers in the alliance to play the role of cultivating people in the era of college education reform. The aim was to put forward that in educating others, they should first educate themselves, teachers had two-way morality in terms of teacher ethics and professionalism, effectively integrated ideological and political courses into professional teaching and practice, and realized waiting for flowers to bloom in the “context”<sup>1</sup> teaching environment like the cultivation effect of salt in water. 展开更多
关键词 Democratic Parties in Universities Moral Values establishment and People Cultivation General Branch of Huizhou University of the Democratic League
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Establishment and assessment of rodent models of medication-related osteonecrosis of the jaw(MRONJ) 被引量:2
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作者 Ran Yan Ruixue Jiang +3 位作者 Longwei Hu Yuwei Deng Jin Wen Xinquan Jiang 《International Journal of Oral Science》 SCIE CAS CSCD 2022年第3期245-258,共14页
Medication-related osteonecrosis of the jaw(MRONJ)is primarily associated with administering antiresorptive or antiangiogenic drugs.Despite significant research on MRONJ,its pathogenesis and effective treatments are s... Medication-related osteonecrosis of the jaw(MRONJ)is primarily associated with administering antiresorptive or antiangiogenic drugs.Despite significant research on MRONJ,its pathogenesis and effective treatments are still not fully understood.Animal models can be used to simulate the pathophysiological features of MRONJ,serving as standardized in vivo experimental platforms to explore the pathogenesis and therapies of MRONJ.Rodent models exhibit excellent effectiveness and high reproducibility in mimicking human MRONJ,but classical methods cannot achieve a complete replica of the pathogenesis of MRONJ.Modified rodent models have been reported with improvements for better mimicking of MRONJ onset in clinic.This review summarizes representative classical and modified rodent models of MRONJ created through various combinations of systemic drug induction and local stimulation and discusses their effectiveness and efficiency.Currently,there is a lack of a unified assessment system for MRONJ models,which hinders a standard definition of MRONJ-like lesions in rodents.Therefore,this review comprehensively summarizes assessment systems based on published peer-review articles,including new approaches in gross observation,histological assessments,radiographic assessments,and serological assessments.This review can serve as a reference for model establishment and evaluation in future preclinical studies on MRONJ. 展开更多
关键词 establishment and assessment of rodent models of medication-related osteonecrosis of the jaw MRONJ
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Establishment of the GPS Monitoring Network in North China, the Relation of Horizontal Crustal Movement to Stress Field and Seismicity 被引量:1
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作者 Li Yanxing, Hu Xinkang, Zhao Chengkun, Wang Min, Guo Liangqian, and Xu JushengFirst Crustal Deformation Monitoring Center, China Seismological Bureau, Tianjin 300180, China Institute of Seismology, China Seismological Bureau, Wuhan 430071, China 《Earthquake Research in China》 1998年第4期30-39,共10页
In the paper, the establishment, measurement, data-processing program and monitoring accuracy of the GPS seismic monitoring network in North China, especially in the Capital-Circle area, have been presented briefly. T... In the paper, the establishment, measurement, data-processing program and monitoring accuracy of the GPS seismic monitoring network in North China, especially in the Capital-Circle area, have been presented briefly. The relation of horizontal crustal deformation to tectonic movement, stress-field variation and seismicity has been analyzed in detail. The results indicate that the accuracy of GPS measurement has reached the order of 10-9 and the annual rate of horizontal crustal deformation in North China is about 4 ~5 mm. Horizontal crustal movement is a direct indication of the regional stress field. Therefore, by monitoring the time-sequence variation of horizontal crustal motion, it would be possible to investigate the change in the stress field, to analyze the tendency of seismicity and to determine the seismogenic zones. 展开更多
关键词 GPS network establishment Accuracy analysis Study of horizontal deformation field TECTONIC movement.
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Establishment of Field Sites to Study Frost Heaving and Related Landforms in Southern Yakutia,Russia
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作者 Urban Anna 《地学前缘》 EI CAS CSCD 北大核心 2009年第S1期245-246,共2页
Frost heaving processes have been a focus of study since the late 19th century.Factors controlling frost heave development were investigated over several decades.The mechanisms involved were identified based on numero... Frost heaving processes have been a focus of study since the late 19th century.Factors controlling frost heave development were investigated over several decades.The mechanisms involved were identified based on numerous field and experimental evidences. However,despite this long history of frost 展开更多
关键词 FROST heaving FROST mound SOUtheRN YAKUTIA establishment of FIELD SITES
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Establishment and evaluation of a theater influenza monitoring platform
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作者 Jian Wang Hui-Suo Yang +6 位作者 Bing Deng Meng-Jing Shi Xiang-Da Li Qing-Gong Nian Wen-Jing Song Feng Bing Qing-Feng Li 《Military Medical Research》 SCIE CAS 2018年第2期111-116,共6页
Background:Influenza is an acute respiratory infectious disease with a high incidence rate in the Chinese army,which directly disturbs military training and affects soldiers’health.Influenza surveillance systems are ... Background:Influenza is an acute respiratory infectious disease with a high incidence rate in the Chinese army,which directly disturbs military training and affects soldiers’health.Influenza surveillance systems are widely used around the world and play an important role in influenza epidemic prevention and control.Methods:As a theater centers for disease prevention and control,we established an influenza monitoring platform(IMP)in 2014 to strengthen the monitoring of influenza-like illness and influenza virus infection.In this study,we introduced the constitution,influenza virus detection,and quality control for an IMP.The monitoring effect was also evaluated by comparing the monitoring data with data from national influenza surveillance systems.The experiences and problems associated with the platform also were summarized.Results:A theater IMP was established based on 3 levels of medical units,including monitoring sites,testing laboratories and a checking laboratory.A series of measures were taken to guarantee the quality of monitoring,such as technical training,a unified process,sufficient supervision and timely communication.The platform has run smoothly for 3 monitoring years to date.In the 2014–2015 and 2016–2017 monitoring years,sample amount coincided with that obtained from the National Influenza Surveillance program.In the 2015–2016 monitoring year,due to the strict prevention and control measures,an influenza epidemic peak was avoided in monitoring units,and the monitoring data did not coincide with that of the National Influenza Surveillance program.Several problems,including insufficient attention,unreasonable administrative intervention or subordination relationships,and the necessity of detection in monitoring sites were still observed.Conclusion:A theater IMP was established rationally and played a deserved role in the prevention and control of influenza.However,several problems remain to be solved. 展开更多
关键词 INFLUENZA MONITORING MILITARY establishment EVALUATION
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Prevalence of intestinal parasitic infections in certified food-handlers working in food establishments in the City of Nairobi,Kenya
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作者 Paul Kamau Penina Aloo Obudho +4 位作者 Ephantus Kabiru Kepha Ombacho Bernard Langat Obadiah Mucheru Laban Ireri 《The Journal of Biomedical Research》 CAS 2012年第2期84-89,共6页
Most intestinal parasites are cosmopolitan with the highest prevalence in the tropics and subtopics. Rural-to-urban migration rapidly increases the number of food eating places in towns and their environs. Some of the... Most intestinal parasites are cosmopolitan with the highest prevalence in the tropics and subtopics. Rural-to-urban migration rapidly increases the number of food eating places in towns and their environs. Some of these eating estabishments have poor sanitation and are overcrowded, facilitating disease transmission, especially through food-handling. Our investigations in Nairobi, therefore, were set to determine the presence of intestinal parasites in food-handlers with valid medical certificates. Direct and concentrated stool processing techniques were used. Chisquare test and ANOVA were used for data analysis. The parasites Ascaris lumbricoides, Entamoeba histolytica and Giardia lamblia were observed in certified food-handlers. Significant difference was found in parasite frequency by eating classes and gender (χ^2 = 9.49, P = 0.73), (F = 1.495, P = 0.297), but not in parasite occurrence between age brackets (χ^2 = 6.99, P = 0.039). The six-month medical certificate validity period may contribute significantly to the presence of intestinal parasites in certified food-handlers. 展开更多
关键词 parasites food-handlers medical certificate food establishments
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Review of Marxist Political Party Theory Innovation Over the 70 Years Since the Establishment of PRC
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作者 Meng Pengfei 《学术界》 CSSCI 北大核心 2019年第11期215-224,共10页
since the establishment of the People’s Republic of China,the central leader-groups from generation to generation have been continuously exploring and innovating Marxist political party theory in terms of its value t... since the establishment of the People’s Republic of China,the central leader-groups from generation to generation have been continuously exploring and innovating Marxist political party theory in terms of its value target,ideological construction,working style,and organization developments.This process can be categorized into five stages:the founding stage in Mao Zedong’s era,the development stage in Deng Xiaoping’s ear,the promotion stage in Jiang Zemin’s times,the deepening stage under Hu Jintao’s leadership,and the stage of further innovation by Xi Jinping in the new era,with the characteristics of inheritance,development as well as scientificity and valuation. 展开更多
关键词 70years SINCE the establishment of New China MARXIST POLITICAL PARTY theory progress characteristics
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Orientation of Government's Role in Building the Technology System of Circular Agriculture
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作者 DENG Xu-xia LIU Chun-yang 《Asian Agricultural Research》 2012年第4期14-16,29,共4页
This article expounds the economic characteristics of circular agricultural technology.Since the circular agricultural technology has characteristics and externality of public goods,the government participation is nec... This article expounds the economic characteristics of circular agricultural technology.Since the circular agricultural technology has characteristics and externality of public goods,the government participation is necessary in building the technology system of circular agriculture,in order to avoid "free rider" behavior in the consumption of public goods and internalize externality.We analyze the orientation of government's role in building the technology system of circular agriculture:the government is the leader,designer,organizer and regulator in building the technology system of circular agriculture;the government orientates the four roles precisely in building the technology system of circular agriculture,to ensure that they do not cross the line,but be indispensable all the while. 展开更多
关键词 CIRCULAR AGRICULTURE establishment of technology s
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Factors Impacting Corn (<i>Zea mays</i>L.) Establishment and the Role of Uniform Establishment on Yield
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作者 Lindsey Novak Joel Ransom 《Agricultural Sciences》 2018年第10期1317-1336,共20页
Information from actual farm fields can help corn producers understand the value and importance of establishing uniform crop emergence and within-row plant spacing. Thirty-eight fields planted with corn (Zea mays L.) ... Information from actual farm fields can help corn producers understand the value and importance of establishing uniform crop emergence and within-row plant spacing. Thirty-eight fields planted with corn (Zea mays L.) by North Dakota producers were evaluated to determine the effects of uneven plant emergence timing and within-row plant space variability, as well as identifying contributing factors. Rows within a planter’s width with the most variability yielded 6% less than the least variable rows. Individual ear weights decreased as the number of days after normal emergence (date when 50% of plant stand emerged) increased. Ears next to within-row gaps (>30.5 cm) weighed 11% more than the normally spaced plants. Combined ears from both plants situated <5.1 cm apart weighed 36% more than from a single ear from normally spaced plants. Surface residue and planting speed impacted stand establishment variability more often than other factors measured. Producers should assess each field environment individually in order to identify best practices to achieve uniform stand establishment. 展开更多
关键词 Planting Conditions UNIFORM Plant establishment CORN YIELD
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Effects of micro-environmental conditions and forest disturbance on the establishment of two Andean palms in Ecuador
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作者 Diana Rodríguez-Paredes Rommel Montúfar-Galárraga Henrik Meilby 《Open Journal of Ecology》 2012年第4期233-243,共11页
The wax palm (Ceroxylon echinulatum) and palm heart (Prestoea acuminata) are key elements in Andean natural forests. This ecosystem is threatened by deforestation and habitat degradation, thus, it is vital to explore ... The wax palm (Ceroxylon echinulatum) and palm heart (Prestoea acuminata) are key elements in Andean natural forests. This ecosystem is threatened by deforestation and habitat degradation, thus, it is vital to explore the impact of anthropogenic activities on the ecological structure and preferences of these species in order to develop proper conservation strategies. Fifty-seven 400 m2 plots were established in two forest areas, a disturbed forest (n = 30 plots) and an undisturbed forest (n = 27 plots) in the Ecuadorean Andes. Nine micro-environmental variables and the number of individuals of C. echinulatum and P. acuminata in five size classes were recorded in each plot. Logistic regression models helped identify environmental variables that influence the establishment of the species. Results showed that different micro-environmental variables determined the presence of different size classes. Both species were benefitted by the environmental conditions of the disturbed forest. Light availability was important for the establishment of both species, especially for the canopy species (C. echinulatum). This palm was negatively affected by the variable “fallen wood”, while P. acuminata was negatively affected mainly by the steepness of the terrain. The environmental variables for the successful establishment of the studied species that were identified by this study provide clues for the sustainable management of C. echinulatum and P. acuminata in Andean forests. 展开更多
关键词 Andean FOREST Ceroxylon FOREST DISTURBANCE Micro-Environmental VARIABLES PALM establishment Prestoea Sustainable Management
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Establishment and development of Ecological Economics in China over the past three decades
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作者 WANG Song-pei 《Ecological Economy》 2015年第1期3-14,共12页
The establishment of China's Ecological Economics was proposed by the famous economist Prof. XU Dixin in 1980. Over the past 34 years since its establishment, Ecological Economics has developed into an interdiscip... The establishment of China's Ecological Economics was proposed by the famous economist Prof. XU Dixin in 1980. Over the past 34 years since its establishment, Ecological Economics has developed into an interdisciplinary subject combined with natural sciences and social sciences. Its emergence met the demand of human society for entering the Ecological Epoch. The past three decades has witnessed the foundation of eco-economic theories and the emergence of various guiding thoughts and policy suggestions which have made great contributions to China's modernization and reform. The guiding ideology of "coordination between ecology and economy" has been widely acknowledged by governments and people, and the concept of "ecological economy" has enjoyed popular support among the general public, which both play increasingly important roles in guiding practice and have major infl uences around the world. 展开更多
关键词 ECOLOGICAL ECONOMICS SURVEY China establishment DEVELOPMENT
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