Earth vitality:An integrated framework for tracking Earth sustainability

The Anthropocene era is characterized by the escalating impact of human activities on the environment,as well as the increasingly complex interactions among various components of the Earth system.These factors greatly affect the Earth's evolutionary trajectory.Despite notable strides in sustainable development practices worldwide,it remains unclear to what extent we have achieved Earth sustainability.Consequently,there is a pressing need to enhance conceptual and methodological frameworks to measure sustainability progress accurately.To address this need,we developed an Earth Vitality Framework that aids in tracking the Earth sustainability progress by considering interactions between spheres,recognizing the equal relationship between humans and nature,and presenting a threshold scheme for all measures.We applied this framework at global and national scales to demonstrate its usefulness.Our findings reveal that the current Earth Vitality Index is 63.74,indicating that the Earth is in a"weak"vitality.Irrational social institutions,unsatisfactory life experiences and the poor state of the biosphere and hydrosphere have remarkably affected the Earth vitality.Additionally,inequality exists between high-income and low-income countries.Although most of the former exhibit poor human-nature interaction,all of them enjoy good human well-being,while the opposite is true for the latter.Finally,we summarize the challenges and possible options for enhancing the Earth vitality in terms of coping with spillover effects,tipping cascades,feedback,and heterogeneity.

Understanding Urban Vitality from the Economic and Human Activities Perspective:A Case Study of Chongqing,China

The literature on urban vitality tends to focus on the built environment.This paper argues that some important processes in shaping vitality may be overlooked without examining the intensity and diversity of economic and human activities.Using newly developed spatial big data and adopting the methods of multi-indicator measurement and spatial analysis methods,we analyzed the pattern of urban vitality in Chongqing,a provincial city in western China and,on this basis,evaluated the creation and maintenance of urban vitality from the economic and human activities perspective.Our findings indicate that the impacts of economic and human activities are positive and significant.Among the three intensity and diversity indicators,economic intensity and population density show an effect on urban vitality stronger than that of economic diversity.However,economic diversity has the strongest superposition or interactive effect,and is thus an important foundation dynamic.The positive effect of population density on urban vitality is largely a result of Chongqing’s jobs-housing balance.The case of Chongqing highlights the importance of topographic features,historical inheritance,large-scale migration,and cultural activities in shaping the distinctive vitality pattern of a city.This study contends that the creation and maintenance of urban vitality can not be fully explained without incorporating the impacts of economic and human activities.It contributes to a comprehensive measurement of urban vitality and enriches its connotations.

Impact of human settlements quality on urban vitality based on multisource data:A case study of Shahekou District,Dalian,China

Urban geography has always been concerned about the influence of human settlements on urban vitality,but few studies reveal the influence of human settlements on urban vitality at a micro-scale.This paper analyzes the spatial distribution characteristics of human settlements’quality and urban vitality at the micro-scale using Geodetectors and geographic weighted regression to analyze the relationship between human settlements and urban vitality.The results are shown as follows:there is still a significant development space for human settlements quality in Shahekou District,with obvious spatial dependence characteristics and significant gaps between various systems;the urban vitality of Shahekou District has obvious timeliness,and the urban vitality undergoes significant changes over time,which is related to the human settlements quality.The spatial distribution presents a single core spatial distribution structure with strong relative stability.The spatial distribution of cold and hot spots shows a pattern of“high in the north and low in the south,high in the east and low in the west”,with an increasing trend from southwest to northeast;the reachability of public transport has a significant impact on urban vitality.Its synergy with other variables is the leading force forming the spatial distribution of urban vitality.The environmental system,support system and social system are the significant factors affecting the urban vitality of Shahekou District.

Data Collection and Research on the Vitality of Public Space in Traditional Villages: A Case Study of Cuandixia Village

The optimization and renewal of rural space is the foundation for building livable,business friendly and harmonious countryside.Three types of data on the spatial vitality of traditional villages are collected and analyzed.A street and alley axis map model is established using spatial syntax,and the degree of industry aggregation is quantified using POI data,and the results of syntactic calculation are validated with the help of popular review text preferences.Taking Cuandixia Village as an example,this paper found that its public space nodes have a pattern of one axis and scattered points;the street and alley space is well preserved but slightly lacking in transportation;the user group is single and the form is traditional.This paper could provide corresponding suggestions for stimulating the vitality of public spaces in traditional villages,in order to provide inspiration for the revitalization design of public spaces in traditional villages.

Research on Evaluation of Spatial Vitality and Influencing Factors of Guesthouses Public Areas Based on Rural Tourism Development

In recent years,China has continued to promote the strategy of rural revitalization.The rural tourism industry has developed rapidly in the context of rural revitalization.Now the rural B&B industry has become an important pillar in solving the problem of rural tourism accommodation.Most of the villages in China have begun to carry out the construction of rural lodging,for example,there are residents who use idle houses to carry out construction on their own initiative and projects developed by village collectives,so the rural lodging industry has been vigorously developed.The vitality of supporting industries and landscape resources around the distribution of rural lodging has become a hot spot of rural issues research in recent years.Therefore,we can use the method of data analysis to analyze the industry and function of the public area around the distribution of rural B&B.Through the comparison of data and the interpretation of related cases,the core elements affecting the spatial vitality of B&B public areas can be identified.We will analyze and improve the related elements to find a reasonable way to enhance the spatial vitality value.Finally,the article will put forward suggestions to improve the related spatial vitality as a way to promote the development of rural B&B industry and the progress of rural tourism.

Low Level of Cystic Fibrosis Transmembrane Conductance Regulator Is Associated with Human Sperm Autophagy and Vitality

Low sperm motility is one of the main causes of male infertility. Cystic fibrosis transmembrane conductance regulator (CFTR, an anion channel protein) is related to the progressive motility of sperm. CFTR disruptor CFTRinh-172 or forskolin (FSK) in this study were used to treat human sperm separately, and the rates of sperm autophagy and progressive motility, mitochondrial membrane potential (MMP) and ATP concentration, and the expression levels of related factors were detected to explore their relationship. It was showed that sperms treated with CFTRinh-172 or FSK reduced the levels of cAMP, CFTR and PKA, but increased sperm autophagy rate, expression levels of AMPK and LC3B. However, reactive oxygen species content had no significant difference. It was indicated that low level of CFTR performed with cAMP and its downstream effectors such as PKA and AMPK to regulate mitochondrial structure and function, leading to increased autophagy rate and reduced vitality of sperm.

Analysis of Landscape Vitality of Historical and Cultural Blocks Based on AHPFuzzy Comprehensive Evaluation Method:A Case Study of Daopashi Street in Anqing City

Historical and cultural blocks are witnesses of history and inheritors of culture. As one of the main spaces for outdoor interaction in historical and cultural blocks, the improvement of its vitality is of great significance for the improvement of residential environment and the better inheritance of history and culture. Taking Daopashi Street in Anqing City as an example, an evaluation model of landscape spatial vitality of historical and cultural blocks was constructed from three aspects of viewing function, store status and service facilities, and analytic hierarchy process was used to determine the index weight and vaguely evaluate the landscape spatial vitality of historical and cultural blocks. The results show that through the comparison of weight, architectural style(0.317), the practicability of service facilities(0.168) and plant landscape(0.165) had a significant impact on the landscape spatial vitality of historical and cultural blocks,and the landscape spatial vitality of historical and cultural blocks in Daopashi Street in Anqing City was at a good level.

Current Status of Research on Pollen Vitality and Stigma Receptivity of Wuren Walnut(Juglans sigillata)in Guizhou Province

Wuren walnut is a unique germplasm resource of Juglans sigillata in Guizhou Province,named after its purple and black seed coat.It is a typical medicinal and edible plant with high nutritional value and good taste compared with ordinary walnut.The color of its inner seed coat is different from that of ordinary walnut,which is mostly light yellow.Wuren walnut has great market potential for development.To lay a theoretical foundation for the future breeding of improved varieties,pollination tree configuration,and hybrid breeding of Wuren walnut in Guizhou Province,this paper summarized the current research status of pollen vitality and stigma acceptability of Guizhou Wuren walnut in recent years,and looked forward to future research and application.

Why Teaching and Research Activities Lack Vitality?:A Probe into the Basic Psychological Needs of Teachers

Teaching and research activities are of great significance to the professional development of teachers.The basic psychological needs of teachers include autonomy,competence,and attribution.The engagement of teachers in teaching and research activities can be analyzed from these three perspectives.Under the management system of teaching and research,teachers generally lack autonomy in the organization of teaching and research activities;they are also lack scientific research knowledge and ability;in addition,under the influence of harmonious interpersonal relationships and the culture of individualism,there is a dearth in real communication among teachers.In light of this,we propose targeted countermeasures to promote the vitality of teaching and research activities.

城市创新创业活力与新兴产业核心技术:空间极化、规模门槛与中介效应

城市新企业、新资本和新发明涌现是孕育新兴产业核心技术的活力源泉,对加快形成新质生产力具有重要意义。利用中国城市面板数据考察创新创业活力对新兴产业核心技术的影响及作用机制。研究发现:(1)城市创新创业活力显著促进新兴产业核心技术数量提升,在考虑一系列稳健性检验后结论仍然成立。(2)创新创业活力对新兴产业核心技术活动的影响存在“边际递增”的城市规模门槛特征,而对邻近城市产生显著的抑制作用,存在“马太效应”和“虹吸效应”。(3)城市创新创业活力对新兴产业核心技术活动的影响存在区域和梯度异质性,不同地理位置和文化区的城市存在显著差异,而资源型城市、智慧城市和创新型城市的分组回归体现了梯度性特征。(4)创新创业活力通过提升城市多样性,特别是专业化部门的多样性程度,促进新兴产业核心技术数量增长。

高校艺术设计专业服务乡村文化振兴的实践探索

文化为乡村发展注入灵魂和血脉,为加快实现农村振兴的终极目标,促进农村文化的振兴作出了贡献。高校艺术设计专业服务乡村文化振兴乡,不仅可以从乡村环境优化、人才培养、非遗文化传承和产业推广等方面为乡村文化振兴提供创新活力,还可以提升高校艺术设计专业学生的社会实践能力,进而促进乡村振兴的内涵发展,促进高校人才培养目标的实现和推动乡村振兴发展的共赢,对高校艺术设计专业服务农村文化振兴的实践研究具有十分重要的实践意义,本文以黑龙江外国语学院艺术系为例,在调查分析艺术设计专业服务乡村文化振兴实施现状的基础上,探索高校艺术设计专业介入乡村振兴的路径和实践。

城乡融合发展背景下浙江省未来乡村建设及其推进机制

在国家乡村振兴、新型城镇化及城乡融合发展战略下,浙江省率先探索未来乡村建设路径,其本质是新时代乡村建设的重要成果。作为浙江省共同富裕现代化创建单元之一,未来乡村重点围绕人本化、生态化、数字化三大价值理念,对乡村九大场景建设营造提出具体要求,并集成共富乡村、美丽乡村、数字乡村、人文乡村、善治乡村于一体。在未来乡村建设实践层面,浙江省通过“地方探索—试点创建—建成提升—全面推广”的实施路径,省市县三级联动的申报创建评价流程体系以及各个政府部门的职责作用,逐步形成“千村引领、万村振兴、全域共富、城乡和美”的乡村建设格局,以全面推动乡村振兴、宜居宜业和美乡村建设和城乡融合发展。

生命体征智能采录系统在监护患者护理中的应用研究

目的探索生命体征智能采录系统在监护患者护理中的应用效果,用以解决原有手工抄录生命体征数据带来的效率低下、误差率高问题,推进全院一体化生命体征数据监测中心的建立。方法利用设备集成模块,将各类生命体征测量设备统一接入中心监护系统,中心监护系统将接收到的生命体征数据进行统一化、标准化和智能化处理,再通过数据网关转发数据至医院各业务系统,完成生命体征智能采录系统的设计,实现医疗设备应用过程中,采集数据的自动化传输、智能化存储和标准化应用。选取5个普通病房和5个重症监护室的生命体征数据采集时间及采录准确性、护理人员满意度作为评价指标对生命体征智能采录系统的效果进行分析。结果生命体征智能采录系统应用后,普通病房及重症病房各科室的生命体征数据采录时间均较系统应用前显著降低,每天平均节省时间分别为14.14~72.59 h、17.00~81.70 h;数据采录准确性和护理人员满意度均高于系统应用前,且差异均有统计学意义(P<0.05)。结论生命体征智能采录系统的应用,实现了生命体征测量设备互联、数据互通、生命体征数据采集流程的数字化,提升了护理安全和护理质量,可帮助医生动态监测患者病情变化并作出准确诊断。

基于毫米波雷达的生命体征信号检测实验教学设计

为了提高学生嵌入式系统的软硬件设计能力,设计基于毫米波雷达的非接触式生命体征信号测量实验。一方面,基于调频连续波(FMCW)雷达机制,采用MATLAB进行生命体征信号建模及呼吸率与心率时频信号提取的仿真实验;另一方面,采用60 GHz毫米波雷达模块,基于STM32单片机进行系统电路设计、PCB设计与实物制作,完成参试者呼吸率及心率的数据采集与OLED显示。上位机采用Qt Creator进行软件界面与功能设计,通过蓝牙模块与单片机进行无线数据通信,以30 s为周期执行呼吸率和心率数据的读取与显示。最后,搭建测试环境,对系统功能进行验证及其设计指标的测试与评估。该实验项目与生活实际紧密相关,注重理论与实践相结合,在系统整体设计与跨平台设计中培养学生的综合实践能力与协作能力。

基于服务乡村振兴的农业专业硕士人才培养改革与实践

农业硕士研究生人才培养目标是为农业技术研究、应用、开发及推广等培养具有农业综合职业技能的应用型高层次人才。培养具有创新意识的新型农业技术人员对于加快我国农业现代化进程、推动农业农村经济建设至关重要。结合近些年的实践教学,从农业硕士研究生人才培养目标、课程设置、导师队伍建设以及实践环节等方面分析了全日制农业专业硕士人才培养过程中存在的问题,并探讨解决对策,以期为农业专业硕士人才培养提供经验,提高专业研究生人才培养质量。

不可复性牙髓炎的活髓保存治疗:生物学基础与临床进展

保存牙髓活力、维持根尖周组织的健康、进行最小程度的有创性治疗是当代牙髓病学发展的前沿进展。不可复性牙髓炎是牙髓病学的重要研究内容之一。活髓保存治疗在不可复性牙髓炎领域中的应用与探索,有望推动牙髓炎诊疗的精准化、微创化进程。本文对活髓保存治疗在不可复性牙髓炎诊断、治疗等方面的应用及面临的挑战进行系统阐述。

基于多源数据的城市活力分布特征及空间治理策略——以广州中心城区为例

提升城市活力的空间治理是推进国家治理体系和治理能力现代化的重要内容。以广州中心城区为例,构建“人群—环境”城市活力模型,运用多源数据测度城市活力系统中人群与环境活力的协调程度。研究发现,广州中心城区正面临边缘地段城市活力较低且功能组成较为单一、城市“人群—环境”活力耦合协调度有待提升的问题。基于此,从公共空间营造、边缘地段产业空间活化、完善多层级治理渠道、促进公众参与四个维度针对性地提出面向活力全球城市的广州城市空间治理策略,为建设和提升活力广州提供思路,也为粤港澳大湾区各城市的空间治理提供实践参考。

超声引导下竖脊肌平面阻滞对多发肋骨骨折患者术后早期呼吸功能的影响

目的探讨超声引导下竖脊肌平面阻滞(ESPB)对多发肋骨骨折(MRFs)患者术后早期呼吸功能和炎性因子的影响。方法选择2019年2月至2021年12月择期行多发肋骨骨折手术患者58例,男42例,女16例,年龄18~64岁,BMI 18.5~30.0 kg/m^(2),ASAⅠ或Ⅱ级。采用随机数字表法将患者分为两组:ESPB联合全身麻醉组(E组)和单纯全身麻醉组(G组),每组29例。E组于麻醉诱导后在侧卧位下实施超声引导下ESPB,给予0.5%罗哌卡因0.4 ml/kg。记录麻醉诱导前、出PACU时、术后24、48 h的用力肺活量(FVC)、动脉血气分析、静息和咳嗽时VAS疼痛评分。记录术后0~24 h、24~48 h的PCIA有效按压次数和补救镇痛情况。记录麻醉诱导前、术后24、48 h的IL-6和TNF-α浓度。结果与G组比较,E组出PACU时、术后24、48 h的FVC明显增大(P<0.05),PaCO_(2)、静息和咳嗽时VAS疼痛评分明显降低(P<0.05)。与G组比较,E组术后0~24 h、24~48 h的PCIA有效按压次数和补救镇痛率明显降低(P<0.05)。与G组比较,E组术后24、48 h的IL-6和TNF-α浓度明显降低(P<0.05)。结论超声引导下ESPB可为MRFs患者提供良好的术后镇痛,促进术后早期呼吸功能的恢复。

中国式现代化:活力与秩序的辩证统一

活力与秩序是现代化的两个关键要素,二者既是现代社会的重要特征,也是实现现代化的重要支撑。活力以自主探索开拓创新为建构取向,秩序以人民至上为价值内核;活力是社会发展的动力机制,秩序是社会发展的平衡机制。中国式现代化较好地协调了动力机制与平衡机制。人民创造活力充分迸发、改革创新活力全面激发、精神文化活力持续焕发,为中国式现代化提供了强劲动力;经济发展安全有序、民主政治稳定有序、精神文化健康有序、社会治理和谐有序、生态环境优美有序,为中国式现代化提供了重要支撑。中国式现代化是一个系统工程,在新时代新征程上,要更好地把握活力与秩序的辩证统一关系,保持活力与秩序的动态平衡,确保中国式现代化行稳致远。

不同花椒种质的花粉生活力分析及人工授粉对坐果率的影响

对4个国内外花椒优良种质的雄株花粉生活力进行初步测定,并对6个不同种质花椒进行人工授粉,计算坐果率,了解不同种质间人工授粉对花椒坐果率的影响,探究授粉与花椒产量提升间的相关性,以期为椒农生产生活提供理论支持。以供试4个花椒种质的雄株花粉为试验材料,利用TTC染色法对不同条件及不同贮藏时间下花粉生活力进行测定。选取晴朗高温天气,随机选取6个供试种质雌株各100花序,记录花序中小花数量。坐果期记录果实数量,计算坐果率。结果表明,花粉生活力在不同品种间存在极显著差异(P≤0.01)。其中凤县花椒花粉生活力最低(2.03%),‘朝仓’花椒花粉生活力最高(55.98%)。花椒花粉最适贮藏温度为-80℃,且花椒花粉生活力随贮藏时间增加而逐渐下降。其中,凤县花椒耐贮性较差,‘朝仓’花椒耐贮性较好。对花椒进行授粉后发现,‘朝仓’花椒在未授粉时坐果率极低,坐果率提升最明显(80.43%)。在国内花椒中,凤县花椒坐果率提升较大(10.89%)。在花椒种间杂交试验中,‘朝仓’花椒花粉对其余品种花椒坐果率均存在抑制作用,国内花椒种质花粉对‘朝仓’花椒授粉时,‘朝仓’花椒不坐果。不同花椒种质的花粉生活力存在差异,但花椒属植物花粉生活力均处于较低水平。-80℃为花椒花粉最适贮藏温度,且花粉生活力随贮藏时间下降。花椒授粉后坐果率与花粉生活力关联性不显著,导致坐果率变化的具体原因仍需进一步分析。‘朝仓’花椒可能与国内花椒种质远缘不亲和,存在生殖隔离。