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A Whole-Course and Multidisciplinary Nutrition Management Model for Breast Cancer: A Typical Case Report
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作者 Yuanzhen Luo li shi +2 位作者 linfei liu Rong Chen Huiting Zhang 《Advances in Breast Cancer Research》 2021年第4期173-183,共11页
Breast cancer patients face different nutritional problems at each stage. However, the nutrition of breast cancer patients has not been taken seriously. As a result, some patients cannot tolerate treatment due to poor... Breast cancer patients face different nutritional problems at each stage. However, the nutrition of breast cancer patients has not been taken seriously. As a result, some patients cannot tolerate treatment due to poor nutrition, thus affecting the prognosis. This study aims to introduce a typical case to explore the whole-course</span><span style="font-family:""> </span><span style="font-family:Verdana;">(started at admission and ended 5 years after surgery)</span><span style="font-family:""> </span><span style="font-family:Verdana;">and Multidisciplinary Teams (MDTs)</span><span style="font-family:""> </span><span style="font-family:Verdana;">(comprising physician, primary nurse, case manager, nutrition liaison and nutrition specialist nurse)</span><span style="font-family:""> </span><span style="font-family:Verdana;">nutritional management mode of breast cancer patients. The patient successfully completed the scheduled treatment by implementing the whole-course and multidisciplinary nutrition management. The mode can prospectively and dynamically estimate the changes </span><span style="font-family:Verdana;">in</span><span style="font-family:Verdana;"> patients’ nutritional status, and provide timely nutritional intervention to promote patient outcomes. 展开更多
关键词 Breast Cancer NUTRITION Whole-Course MULTIDISCIPLINARY Case Management
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Seismic Performance Evaluation of Improved Jet Grouted Grid Form with Horizontal Slab in Liquefaction Mitigation
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作者 Myat Myat Phyo Phyo Hemanta Hazarika +2 位作者 li shi Hiroaki Kaneko Tadashi Akagawa 《Open Journal of Civil Engineering》 2020年第3期301-320,共20页
A chain event of the 2016 Kumamoto earthquakes caused considerable geotechnical damage related to liquefaction in many places around Kumamoto plain. Many low-rise houses and traditional Japanese style houses, which we... A chain event of the 2016 Kumamoto earthquakes caused considerable geotechnical damage related to liquefaction in many places around Kumamoto plain. Many low-rise houses and traditional Japanese style houses, which were constructed on <span style="font-family:Verdana;">shallow</span><span style="font-family:Verdana;"> foundation, suffered differential settlement and tilting due to liquefaction. To mitigate the building damages due to the liquefaction</span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">, a new countermeasure method of jet grout grid form with a horizontal slab is introduced in this study.</span></span></span><span><span><span><span style="font-family:""><span style="font-family:Verdana;"> The effectiveness of the proposed technique was evaluated through physical </span><span style="font-family:Verdana;">modelling</span><span style="font-family:Verdana;"> and numerical </span><span style="font-family:Verdana;">modelling</span><span style="font-family:Verdana;">. As </span></span></span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">a </span></span></span></span><span><span><span><span style="font-family:""><span style="font-family:Verdana;">part of the physical </span><span style="font-family:Verdana;">modelling</span><span style="font-family:Verdana;">, a set of 1 g shaking table tests for </span><span style="font-family:Verdana;">unimproved</span><span style="font-family:Verdana;"> case and improved case were performed, in which the mitigation effects of the grid form with a horizontal reinforcing slab were examined based on the acceleration, excess pore water pressure ratio as well as ground settlement. Numerical simulation was also performed for assessing the effect of </span><span style="font-family:Verdana;">improved</span><span style="font-family:Verdana;"> method on soil-structure interaction and building </span><span style="font-family:Verdana;">settlement</span><span style="font-family:Verdana;"> during the earthquake. </span></span></span></span></span><span><span><span style="font-family:""><span style="font-family:Verdana;">The physical and numerical results confirmed that the grid form with </span><span style="font-family:Verdana;">horizontal</span><span style="font-family:Verdana;"> slab reinforced method is effective in settlement control and offers favorable contribution </span><span style="font-family:Verdana;">in</span><span style="font-family:Verdana;"> liquefaction mitigation.</span></span></span></span> 展开更多
关键词 Liquefaction Mitigation Jet Grouting Shaking Table Tests Numerical Simulation
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xLi_3V_2(PO_4)_3·LiVPO_4F/C复合正极材料的合成及储锂性能 被引量:3
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作者 李实 梁叔全 +2 位作者 曹鑫鑫 罗志高 周江 《中国有色金属学报》 EI CAS CSCD 北大核心 2019年第1期91-99,共9页
用乙炔碳作为碳源,采用机械活化辅助碳热还原两步法合成xLi_3V_2(PO_4)_3·LiVPO_4F/C复合正极材料。采用XRD、SEM、TEM等技术对样品的晶体结构和微观形貌进行了表征,采用循环伏安法和恒流充放电等测试方法对合成样品的电化学性能... 用乙炔碳作为碳源,采用机械活化辅助碳热还原两步法合成xLi_3V_2(PO_4)_3·LiVPO_4F/C复合正极材料。采用XRD、SEM、TEM等技术对样品的晶体结构和微观形貌进行了表征,采用循环伏安法和恒流充放电等测试方法对合成样品的电化学性能进行分析研究。结果表明:xLi_3V_2(PO_4)_3·LiVPO_4F/C复合正极材料兼备了Li_3V_2(PO_4)_3的循环稳定性好、倍率性能佳的优点和LiVPO_4F能量密度高的优势,此外还弥补了Li_3V_2(PO_4)_3在3~4.7 V电压范围充放电时放电电压平台缺失的缺陷。该材料在3~4.7 V之间的循环稳定性较好,在1C倍率下最高放电比容量为119.7 m A·h/g,循环300圈后为97.5 m A·h/g。其倍率性能较好,在0.1C倍率下充放电可获得高达152 m A·h/g的放电比容量,倍率升高到8C时仍能保持100 mA·h/g的放电比容量。 展开更多
关键词 锂离子电池 正极材料 碳热还原法 xLi3V2(PO4)3·LiVPO4F/C
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自然光条件下光自芬顿/PMS协同体系处理新污染物的实验设计 被引量:1
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作者 刘芳 刘嘉梁 +3 位作者 安蓓雅 刘柃妤 李石 王永强 《实验技术与管理》 CAS 北大核心 2024年第1期26-36,共11页
为强化学生对新污染物处理理论和实验技能的掌握,设计了光自芬顿/过氧单硫酸盐(PMS)协同体系在自然光条件下对新污染物的强化降解实验。利用水热法和浸渍法制备改性氮化碳空心球MoS_(2)/TCN_(Cl-S)(P),以四环素(TC)作为新污染物代表,构... 为强化学生对新污染物处理理论和实验技能的掌握,设计了光自芬顿/过氧单硫酸盐(PMS)协同体系在自然光条件下对新污染物的强化降解实验。利用水热法和浸渍法制备改性氮化碳空心球MoS_(2)/TCN_(Cl-S)(P),以四环素(TC)作为新污染物代表,构建了光自芬顿/PMS协同体系,基于其耦合效应,提高在自然光条件下污染物的降解效率。结果表明,光自芬顿/PMS体系对TC在120min内的降解率可以达到80%,较不引入PMS的光自芬顿体系提高了30%。其原因在于光自芬顿反应中产生的H_(2)O_(2)与PMS发生协同作用,产生了更多的·O_(2)^(-)、SO_(4)^(-)·和^(1)O_(2)等活性自由基,从而提高了TC的降解效率。该实验设计体系有助于促进学生对高级氧化技术的掌握,为学生科研创新能力培养体系的构建提供参考。 展开更多
关键词 自然光 新污染物 改性氮化碳空心球 光自芬顿/PMS协同系统
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联合多意图识别与语义槽填充的双向交互模型 被引量:3
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作者 李实 孙镇鹏 《计算机工程与应用》 CSCD 北大核心 2024年第5期130-138,共9页
意图识别与语义槽填充是口语理解的两个主要任务,两者具有高度相关性,通常进行联合训练。随着口语理解任务的深入,研究发现用户在现实场景中的话语往往含有多个意图。但部分联合模型只能识别用户话语中的单个意图,未能充分建模多个意图... 意图识别与语义槽填充是口语理解的两个主要任务,两者具有高度相关性,通常进行联合训练。随着口语理解任务的深入,研究发现用户在现实场景中的话语往往含有多个意图。但部分联合模型只能识别用户话语中的单个意图,未能充分建模多个意图和语义槽之间的关联性。考虑到话语中多个意图的信息可以引导语义槽填充,语义槽信息也可以帮助意图更好的识别,模型采用图注意力网络建立意图和语义槽之间的双向交互。具体的,将两个任务双向关联以便模型能够挖掘多个意图与语义槽之间的关系,同时引入两个任务的标签信息使模型能够学习到话语上下文和标签的关系,从而提高意图识别与语义槽填充的准确率,优化口语理解的整体性能。实验表明,模型在MixATIS和MixSNIPS两个多意图数据集上对比其他模型性能得到了显著提升。 展开更多
关键词 口语理解 多意图识别 语义槽填充 联合模型
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China's Rising Labor Cost: Myths and Realities 被引量:6
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作者 li shi Wan Haiyuan 《China Economist》 2017年第1期58-79,共22页
This paper examines whether China's labor cost is too high and rising too fast from the five aspects of macro distribution, corporate cost structure, labor productivity, labor cost structure and international compari... This paper examines whether China's labor cost is too high and rising too fast from the five aspects of macro distribution, corporate cost structure, labor productivity, labor cost structure and international comparison, shedding light on the real causes of rising labor cost. On the basis of our analysis, we propose a few policy recommendations on China's macroeconomy and corporate development. 展开更多
关键词 labor compensation corporate cost macro distribution burden of taxes and fees operational efficiency
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Synergistic Effect of Metal Doping and Tethered Ligand Promoted High-Selectivity Conversion of CO_(2)to C_(2)Oxygenates at Ultra-Low Potential 被引量:2
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作者 Xiaowan Bai li shi +4 位作者 Qiang li Chongyi ling Yixin Ouyang shiyan Wang Jinlan Wang 《Energy & Environmental Materials》 SCIE EI CAS CSCD 2022年第3期892-898,共7页
Effectively controlling the selectivity of C_(2) oxygenates is desirable for electrocatalytic CO_(2) reduction.Copper catalyst has been considered as the most potential for reducing CO_(2) to C_(2) products,but it sti... Effectively controlling the selectivity of C_(2) oxygenates is desirable for electrocatalytic CO_(2) reduction.Copper catalyst has been considered as the most potential for reducing CO_(2) to C_(2) products,but it still suffers from low C_(2) selectivity,high overpotential,and competitive hydrogen evolution reaction(HER).Here,we propose a design strategy to introduce a second metal that weakly binds to H and a functional ligand that provides hydrogen bonds and protons to achieve high selectivity of C_(2)oxygenates and effective suppression of HER on the Cu(100)surface simultaneously.Seven metals and eleven ligands are screened using first-principles calculations,which shows that Sn is the most efficient for inhibiting HER and cysteamine(CYS)ligand is the most significant in reducing the limiting potential of^(*)CO hydrogenation to^(*)CHO.In the post C-C coupling steps,a so-called“pulling effect”that transfers H in the CYS ligand as a viable proton donor to the C_(2)intermediate to form an H bond,can further stabilize the OH group and facilitate the selection of C_(2)products toward oxygenates.Therefore,this heterogeneous electrocatalyst can effectively reduce CO_(2)to ethanol and ethylene glycol with an ultra-low limiting potential of-0.43 V.This study provides a new strategy for effectively improving the selectivity of C_(2)oxygenates and inhibiting HER to achieve advanced electrocatalytic CO_(2)reduction. 展开更多
关键词 metal doping hydrogen-bonding ligand density functional theory electrochemical CO_(2)reduction C_(2)oxygenates selectivity
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Two new species in the genus Eumerus Meigen(Diptera:Syrphidae)from Inner Mongolia,China 被引量:2
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作者 Mixia SONG Aiping liU +2 位作者 Keke HUO li shi lin GAN 《Entomotaxonomia》 CSCD 2020年第4期275-281,共7页
This paper describes two new species in the genus Eumerus Meigen,1822(Diptera:Syrphidae)from Alashan Right Banner of China.Eumerus alxaensis Huo&Liu sp.nov.is similar to E.tuberculatus Rondani,but differs from the... This paper describes two new species in the genus Eumerus Meigen,1822(Diptera:Syrphidae)from Alashan Right Banner of China.Eumerus alxaensis Huo&Liu sp.nov.is similar to E.tuberculatus Rondani,but differs from the latter by mesonotum without whitish pollinose middle stripes,tergite 4 with distinctly L-shaped whitish pollinose bands,eyes with long and dense hairs in male but shorter in female,hypandrium ventrally with a semicircular sheet protruding on the middle of lateral margins.Eumerus seximaculatum Huo&Liu sp.nov.is allied to E.strigatus(Fallén),but differs from the latter by eyes bare,vertex covered with pale yellow hairs,whitish pollinose bands on broader tergites,sternite 4 of male with deeply concave posterior margin and male terminalia distinctly different. 展开更多
关键词 Eristalinae Eumerini hover flies taxonomy
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Postoperative Transition from Euglycemic Diabetic Ketoacidosis to Diabetic Ketoacidosis: A Case Report
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作者 Dan Cao li shi +1 位作者 Piao Chen Wenhao He 《Journal of Diabetes Mellitus》 CAS 2024年第4期183-193,共11页
Objective: This study aims to analyze the causes of postoperative transition from euglycemic diabetic ketoacidosis (EDKA) to diabetic ketoacidosis (DKA), summarize clinical nursing experiences, enhance the recognition... Objective: This study aims to analyze the causes of postoperative transition from euglycemic diabetic ketoacidosis (EDKA) to diabetic ketoacidosis (DKA), summarize clinical nursing experiences, enhance the recognition and management of such complications, and improve patient prognosis. Methods: A detailed case analysis was conducted on a patient who developed EDKA early after breast cancer surgery, which subsequently transitioned to DKA. A multidisciplinary team (MDT) consultation was employed to formulate a personalized nursing plan. Specific methods included comprehensive clinical data collection, monitoring of blood glucose, urine ketones, and blood ketone levels;implementing dynamic insulin adjustment strategies;providing dietary education and psychological support;and guiding dietary adjustments through nutritional consultations. Results: Through personalized observation, blood glucose management, dietary management, psychological care, and wound care, the patient’s blood and urine ketone levels returned to normal, the flap healed well, and blood glucose was maintained within the normal range. The patient is currently undergoing postoperative adjuvant chemotherapy. Conclusion: For postoperative patients with unexplained nausea, vomiting, and dehydration, regardless of diabetes history, timely testing of blood glucose, blood ketones, blood urea nitrogen, creatinine, electrolytes, and blood gas analysis can facilitate early detection of EDKA. Additionally, personalized management of blood glucose, diet, psychological care, and wound care is crucial for the prevention and treatment of EDKA. 展开更多
关键词 Breast Cancer Diabetic Ketoacidosis (DKA) Euglycemic Diabetic Ketoacidosis (EDKA) Blood Glucose Nursing Care
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CAG-repeat variant in the polymerase γ gene and male infertility in the Chinese population: a meta-analysis 被引量:1
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作者 Shu-Yuan liu Chang-Jun Zhang +9 位作者 Hai-Ying Peng Yu-Feng Yao Lei shi Jin-Bao Chen Ke-Qin lin liang Yu li shi Xiao-Qin Huang Hao Sun Jia-You Chu 《Asian Journal of Andrology》 SCIE CAS CSCD 2011年第2期298-304,共7页
Several studies have reported a relationship between the length of the CAG-repeat in the polymerase y (POLG) gene and male infertility. However, other studies have not reproduced this result. In our study, the POLG-... Several studies have reported a relationship between the length of the CAG-repeat in the polymerase y (POLG) gene and male infertility. However, other studies have not reproduced this result. In our study, the POLG-CAG-repeat length was analyzed in 535 healthy individuals from six Chinese Han populations living in different provinces. The frequencies of IO-CAG alleles and genotypes were high (97.38 and 94.13%, respectively), with no significant difference among the six Chinese Han populations. Furthermore, we determined the distribution of the POLG-CAG-repeat in 150 infertile men and 126 fertile men. Our study suggested that the distributions of POLG-CAG-repeat alleles and genotypes were not significantly different between infertile (95.67 and 92.67%, respectively) and fertile men (97.22 and 94.44%, respectively). In a subsequent meta-analysis, combining our data with data from previous studies, a comparison of the CAG-repeat alleles in fertile versus infertile men showed no obvious risk for male infertility associated with any particular allele (pooled odds ratio (0R)=0.94; 95% confidence interval (CI): 0.60-1.48). The significance level was not attained with any of the following genetic models: homozygote comparison (not lO/not 10 versus 10110: OR= 1.34; 95% Ch 0.66-2.72), heterozygote comparison (lO/not 10 versus 10/10: OR= 1.04; 95% Ch 0.78-1.38), dominant model comparison (not lO/not 10+ 101 not 10 versus 10110. OR= 1.08; 95% Ch 0.79-1.47) and recessive genetic comparison (not lO/not 10 versus lO/not 10+ 10/10- OR= 1.31; 95% Ch 0.68-2.55). In conclusion, there is no significant difference of the frequencies of POLG-CAG-repeat variants among six Chinese Han populations, and this polymorphism may not be associated with Chinese male infertility. On the basis of a meta-analysis, there is no obvious association between CAG-repeat variants of the POLG gene and male infertility. 展开更多
关键词 case-control study male infertility META-ANALYSIS POLG-CAG-repeat
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Adsorption desulfurization and weak competitive behavior from 1-hexene over cesium-exchanged Y zeolites(CsY) 被引量:4
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作者 Xiaojuan liu Dezhi Yi +2 位作者 Yuanyuan Cui li shi Xuan Meng 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2018年第1期271-277,共7页
The systematic research about the adsorption desulfurization and competitive behavior from 1-hexene over cesium-exchanged Y zeolites has been investigated. The structural properties of the adsorbents were characterize... The systematic research about the adsorption desulfurization and competitive behavior from 1-hexene over cesium-exchanged Y zeolites has been investigated. The structural properties of the adsorbents were characterized by X-ray diffraction(XRD), N_2 sorption(BET) and thermal analysis(TGA). The effects of calcination temperature, calcination atmosphere, and adsorption temperature were studied by the dynamic and static tests. The competitive adsorption mechanisms between thiophene and 1-hexene were studied by in-situ Fourier transform infrared spectroscopy(in-situ FTIR) and temperature-programmed desorption(TPD). CsY adsorbents exhibited high selectivity for thiophene even when a large amount of olefins exist.In-situ FTIR spectra of thiophene and 1-hexene adsorption indicated that both thiophene and 1-hexene were mainly adsorbed on CsY via π-complexation. The higher desorption activated energy and higher adsorption heat of thiophene than 1-hexene obtained by thiophene-TPD and hexene-TPD has revealed that thiophene is adsorbed more strongly in CsY adsorbents than 1-hexene. 展开更多
关键词 1-hexeneCsY Adsorption desulfurization Thiophene Mechanism
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The growth and expansive applications of amorphous Ga_(2)O_(3) 被引量:1
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作者 奚昭颖 杨莉莉 +6 位作者 舒林聪 张茂林 李山 史丽 刘增 郭宇锋 唐为华 《Chinese Physics B》 SCIE EI CAS CSCD 2023年第8期52-68,共17页
As a promising ultra-wide bandgap semiconductor material,gallium oxide(Ga_(2)O_(3))is attracting extensive attention of researchers due to its feasible growth process,appropriate bandgap of 4.4 e V-5.3 e V allowing fo... As a promising ultra-wide bandgap semiconductor material,gallium oxide(Ga_(2)O_(3))is attracting extensive attention of researchers due to its feasible growth process,appropriate bandgap of 4.4 e V-5.3 e V allowing for deep-ultraviolet(deepUV)detection,good physical and chemical stability,high breakdown field strength and electron mobility,etc.Different from the strict processes for controllable crystalline Ga_(2)O_(3)(usually refer to as stable monoclinicβ-Ga_(2)O_(3)),amorphous Ga_(2)O_(3)(a-Ga_(2)O_(3))film can be prepared uniformly at low temperature on a large-area deposition substrate,suggesting great advantages such as low manufacturing cost and excellent flexibility,dispensing with high-temperature and high vacuum techniques.Thus,a-Ga_(2)O_(3)extremely facilitates important applications in various applied fields.Therefore,in this concise review,we summarize several major deposition methods for a-Ga_(2)O_(3)films,of which the characteristics are discussed.Additionally,potential methods to optimize the film properties are proposed by right of the inspiration from some recent studies.Subsequently,the applications of a-Ga_(2)O_(3)thin films,e.g.,in photodetectors,resistive random access memories(RRAMs)and gas sensors,are represented with a fruitful discussion of their structures and operating mechanisms. 展开更多
关键词 amorphous-Ga_(2)O_(3) thin film functional application
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安化黑茶产品及其加工技术 被引量:2
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作者 李适 黄建安 +1 位作者 王伟 刘仲华 《中国茶叶》 2024年第2期1-6,共6页
安化黑茶是中国黑茶的重要组成部分,近年来在新产品开发、工艺及装备创新方面取得众多突破。文章分别从安化黑茶的产品类别、传统加工技术、加工技术及装备创新几个维度介绍安化黑茶产品和加工工艺的基本情况及最新研究进展。针对安化... 安化黑茶是中国黑茶的重要组成部分,近年来在新产品开发、工艺及装备创新方面取得众多突破。文章分别从安化黑茶的产品类别、传统加工技术、加工技术及装备创新几个维度介绍安化黑茶产品和加工工艺的基本情况及最新研究进展。针对安化黑茶产品及技术创新存在的问题提出建议,旨在为安化黑茶突破产业瓶颈,实现高质量发展提供参考。 展开更多
关键词 安化黑茶 产品 加工技术 创新
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Targeted Poverty Alleviation Lies in Precisely Identifying the Poverty–Stricken Population: An Analysis of the Targeting Effect of the Rural Subsistence Allowance Policy 被引量:1
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作者 Zhu Mengbing li shi Yang Weizhen 《Contemporary Social Sciences》 2018年第4期100-124,共25页
Poverty–stricken populations must be identified precisely in the fight against poverty to implement the strategy of building a moderately prosperous society in all respects by 2020. The analysis based on the househol... Poverty–stricken populations must be identified precisely in the fight against poverty to implement the strategy of building a moderately prosperous society in all respects by 2020. The analysis based on the household survey in 2013 shows that the targeting accuracy is not high based on the standard of income and the accuracy is higher based on the standard of multidimensional poverty index. But the latter still has a low coverage rate. To gradually achieve integration of the rural poverty line and the rural subsistence allowance line, standards applied to identifying households entitled to subsistence allowances should be changed from the standard of income to multidimensional poverty indexes. A unified standard of subsistence allowances and a unified method for identifying related households should be developed. At the same time, coverage and funding of subsistence allowances should be extended and increased to better meet people's basic needs. 展开更多
关键词 rural subsistence allowance line poverty threshold by income multidimensional poverty index poverty line
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“新农科”背景下《茶叶审评与检验》教学改革与实践
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作者 李适 林勇 +2 位作者 李银花 周跃斌 黄建安 《中国茶叶》 2024年第11期75-79,共5页
《茶叶审评与检验》作为涉茶院校专业核心课程,一直以来在茶学本科教学中占据重要地位。文章结合《茶叶审评与检验》课程教学工作实践,对课程教学内容、教学方法、考核方式等方面做出的创新和改革进行梳理,旨在为“新农科”背景下如何... 《茶叶审评与检验》作为涉茶院校专业核心课程,一直以来在茶学本科教学中占据重要地位。文章结合《茶叶审评与检验》课程教学工作实践,对课程教学内容、教学方法、考核方式等方面做出的创新和改革进行梳理,旨在为“新农科”背景下如何培养满足茶叶产业发展需求的高质量茶学专业人才提供参考。 展开更多
关键词 茶叶审评与检验 教学改革 线上线下教学
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我国南北差距的历史演变与趋势研判
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作者 刘学良 沈扬扬 +1 位作者 李实 崔兆辉 《华南师范大学学报(社会科学版)》 CSSCI 北大核心 2024年第3期16-29,205,共15页
近年来,我国南北差距快速扩大问题受到社会各界的高度关注。分析可得数据发现,2021—2022年南北差距扭转了过去快速扩大的势头,南北差距的绝对水平和相对占比都有所下降。从行业看,工业和房地产业的差距缩小是南北差距缩小的主要原因;... 近年来,我国南北差距快速扩大问题受到社会各界的高度关注。分析可得数据发现,2021—2022年南北差距扭转了过去快速扩大的势头,南北差距的绝对水平和相对占比都有所下降。从行业看,工业和房地产业的差距缩小是南北差距缩小的主要原因;从部门看,政府财政收入、企业利润的南北差距都有所缩小,但居民收入的差距并没有缩小。结合国内外整体经济形势、省份经济表现等,我国已充分认识到南北差距扩大问题并采取措施应对,加之新冠疫情、俄乌冲突、国际通货膨胀特别是能源价格上涨、房地产市场波动等多重因素叠加,使得2021年以来南北差距有所缩小。但影响因素是短期性的,南北差距的长期趋势仍有待观察。南北差距扩大是我国区域发展格局出现的重大问题,应对南北差距扩大问题需有新思路,要发挥地区比较优势,尊重产业和人口向优势区域集中的客观规律,为重点开发地区、生态脆弱地区、能源资源地区等制定差异化开发政策,为重点生态功能区、农产品主产区、困难地区提供有效转移支付。 展开更多
关键词 南北差距 东西差距 二维分解 区域政策
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共同富裕与“公平保险”
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作者 李石 《理论月刊》 CSSCI 北大核心 2024年第2期71-79,共9页
要实现共同富裕的发展目标,就要在不同阶层的社会成员之间建立公平分担风险的机制。在风险社会,人们面对着环境污染、气候变化、核威胁、瘟疫、经济衰退等多种风险。由于经济能力不同,富裕阶层和贫困阶层抵御风险的能力存在巨大差异。... 要实现共同富裕的发展目标,就要在不同阶层的社会成员之间建立公平分担风险的机制。在风险社会,人们面对着环境污染、气候变化、核威胁、瘟疫、经济衰退等多种风险。由于经济能力不同,富裕阶层和贫困阶层抵御风险的能力存在巨大差异。美国哲学家罗纳德·德沃金设想了一种“公平保险”,试图在经济能力不同、遭遇风险概率不同的人们之间建构一种分担风险的机制。商业保险对人们的经济能力和风险概率都是敏感的,不符合“公平保险”的构想。现行的社会保险制度对人们的经济能力敏感、对具体的风险概率不敏感,能够在风险概率不同的人们之间建构风险分担机制,但却很难在经济能力不同的人们之间建立风险分担机制。“公平保险”的构想为社会保险制度的改进指出了方向。 展开更多
关键词 共同富裕 公平保险 商业保险 社会保险
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Impact of early intensive rehabilitation care in patients undergoing cardiac surgery in a single center:a quasi-experimental study
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作者 lin Zhao Qingyin li +3 位作者 Chunying Huo Yunxia Hao li shi lin liu 《中国循环杂志》 CSCD 北大核心 2018年第S01期173-173,共1页
Objective To evaluate the impact of early intensive rehabilitation care in adults undergoing cardiac surgery.Methods This was a quasi-experimental study using assessor blinding in 252 cardiac surgery patients recruite... Objective To evaluate the impact of early intensive rehabilitation care in adults undergoing cardiac surgery.Methods This was a quasi-experimental study using assessor blinding in 252 cardiac surgery patients recruited from Fuwai Hospital.Participants awaiting cardiac surgery were divided into the experiment group and the control group.The control group received routine rehabilitation care postoperatively,including the exercise training,deep breathing exercises,nutrition direction,medication instruction,psychological education,pain management and sleep conditioning. 展开更多
关键词 ADULTS undergoing cardiac surgery EARLY INTENSIVE REHABILITATION CARE ROUTINE REHABILITATION CARE postoperatively
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学生从形式记忆到形象记忆的转向
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作者 李适 《教育理论与实践》 北大核心 2024年第35期38-41,共4页
知识的形式记忆遵循普遍的记忆规律,与相关知识类型、言语编码形式和组织构成有关。以语言为表征形式的知识内容都具有形式记忆的基础,但在形式之外,还有等待被选择和激活的知识想象空间。形象记忆来源于信息创造,意味着学生对知识记忆... 知识的形式记忆遵循普遍的记忆规律,与相关知识类型、言语编码形式和组织构成有关。以语言为表征形式的知识内容都具有形式记忆的基础,但在形式之外,还有等待被选择和激活的知识想象空间。形象记忆来源于信息创造,意味着学生对知识记忆的保持。形象记忆对注意力资源的调配更有优势,能完善形式记忆不具备的感官功能,更有利于学生知识信息的联结。从形式记忆走向形象记忆是为了让学生在对知识形式的筛选、检索和存储基础上,突出知识形象建构。从“大意”转向“细节”的注意力资源调配,推动语言形式和语言形象的融合,构建多渠道、动态化的信息联动记忆,进而促进信息识记和保持长久。 展开更多
关键词 学生 形象记忆 形式记忆 注意力资源
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Three new species and a new record species of the genus Homoneura(Diptera:Lauxaniidae) from the Qinling Mountains, China
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作者 Shunde li Xuefeng GAO li shi 《Entomotaxonomia》 CSCD 2019年第2期138-153,共16页
Three species from the Qinling Mountains are described as new to science: Homoneura(Homoneura) fopingensis Gao & Shi sp. nov. in the H.(H.) quinquenotata group, and H.(H.) aliena Gao & Shi sp. nov. and H.(H.) ... Three species from the Qinling Mountains are described as new to science: Homoneura(Homoneura) fopingensis Gao & Shi sp. nov. in the H.(H.) quinquenotata group, and H.(H.) aliena Gao & Shi sp. nov. and H.(H.) heilongtanensis Gao & Shi sp. nov. in the H.(H.) sauteri group. H.(H.) stigmata Papp, 1984 in the H.(H.) quinquenotata group is recorded from China for the first time. The diagnosis of two species groups is presented. Keys to divide these two species groups and separate known species from the new species are provided. 展开更多
关键词 Cyclorrhapha Lauxanioideu species group TAXONOMY
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