Tree mycorrhizal associations determine how biodiversity,large trees,and environmental factors drive aboveground carbon stock in temperate forests

Biodiversity,large trees,and environmental conditions such as climate and soil have important effects on forest carbon stocks.However,recent studies in temperate forests suggest that the relative importance of these factors depends on tree mycorrhizal associations,whereby large-tree effects may be driven by ectomycorrhizal(EM)trees,diversity effects may be driven by arbuscular mycorrhizal(AM)trees,and environment effects may depend on differential climate and soil preferences of AM and EM trees.To test this hypothesis,we used forest-inventory data consisting of over 80,000 trees from 631 temperate-forest plots(30 m×30 m)across Northeast China to examine how biodiversity(species diversity and ecological uniqueness),large trees(top 1%of tree diameters),and environmental factors(climate and soil nutrients)differently regulate aboveground carbon stocks of AM trees,EM trees,and AM and EM trees combined(i.e.total aboveground carbon stock).We found that large trees had a positive effect on both AM and EM tree carbon stocks.However,biodiversity and environmental factors had opposite effects on AM vs.EM tree carbon stocks.Specifically,the two components of biodiversity had positive effects on AM tree carbon stocks,but negative effects on EM tree carbon stocks.Environmental heterogeneity(mean annual temperature and soil nutrients)also exhibited contrasting effects on AM and EM tree carbon stocks.Consequently,for the total carbon stock,the positive large-tree effect far surpasses the diversity and environment effect.This is mainly because when integrating AM and EM tree carbon stock into total carbon stock,the opposite diversity-effect(also environment-effect)on AM vs.EM tree carbon stock counteracts each other while the consistent positive large-tree effect on AM and EM tree carbon stock is amplified.In summary,this study emphasized a mycorrhizal viewpoint to better understand the determinants of overarching aboveground carbon profile across regional forests.

Impact of Outdoor Activities in Different Landscape Environments on the Physical and Mental Health of College Students

To investigate whether outdoor activities have an improvement effect on the emotions of young people and the differences in the impact of outdoor activities on the emotions of young people under different landscape environmental conditions,the participating students are asked to engage in outdoor activities in different landscape environments and divided into four groups.Each group is assigned to engage in outdoor activities in four types of landscape areas:open lawn area,low shrub area,dense forest area,and waterfront area.The activities include outdoor yoga and making leaf mandalas.The results show that outdoor yoga has the best effect on reducing pulse and blood pressure and regulating emotions in open lawn area and waterfront area,followed by leaf mantras in waterfront area and outdoor yoga in dense forest area.However,both activities have no significant effect in low shrub area.

Hydrogenic donor impurity states and intersubband optical absorption spectra of monolayer transition metal dichalcogenides in dielectric environments

The hydrogenic donor impurity states and intersubband optical absorption spectra in monolayer transition metal dichalcogenides(ML TMDs) under dielectric environments are theoretically investigated based on a two-dimensional(2D)nonorthogonal associated Laguerre basis set. The 2D quantum confinement effect together with the strongly reduced dielectric screening results in the strong attractive Coulomb potential between electron and donor ion, with exceptionally large impurity binding energy and huge intersubband oscillator strength. These lead to the strong interaction of the electron with light in a 2D regime. The intersubband optical absorption spectra exhibit strong absorption lines of the non-hydrogenic Rydberg series in the mid-infrared range of light. The strength of the Coulomb potential can be controlled by changing the dielectric environment. The electron affinity difference leads to charge transfer between ML TMD and the dielectric environment, generating the polarization-electric field in ML TMD accompanied by weakening the Coulomb interaction strength. The larger the dielectric constant of the dielectric environment, the more the charge transfer is, accompanied by the larger polarization-electric field and the stronger dielectric screening. The dielectric environment is shown to provide an efficient tool to tune the wavelength and output of the mid-infrared intersubband devices based on ML TMDs.

Mapping epistasis and environment × QTX interaction based on four-omics genotypes for the detected QTX loci controlling complex traits in tobacco

Using newly developed methods and software, association mapping was conducted for chromium content and total sugar in tobacco leaf, based on four-omics datasets. Our objective was to collect data on genotype and phenotype for 60 leaf samples at four developmental stages, from three plant architectural positions and for three cultivars that were grown in two locations. Association mapping was conducted to detect genetic variants at quantitative trait SNP(QTS) loci, quantitative trait transcript(QTT) differences,quantitative trait protein(QTP) variability, and quantitative trait metabolite(QTM) changes,which can be summarized as QTX locus variation. The total heritabilities of the four-omics loci for both traits tested were 23.60% for epistasis and 15.26% for treatment interaction.Epistasis and environment × treatment interaction had important impacts on complex traits at all-omics levels. For decreasing chromium content and increasing total sugar in tobacco leaf, six methylated loci can be directly used for marker-assisted selection, and expression of ten QTTs, seven QTPs and six QTMs can be modified by selection or cultivation.

CLOTHING COLOUR PREFERENCES IN A HOSPITAL ENVIRONMENT IN HONG KONG: PART I - CHILD PATIENT'S PREFERENCES OF COLOUR ON NURSE UNIFORM

The aim of this study explored the importance of colour application on clothing and investigated whether there is a preference of colour on clothing among children under hospital environment. A modified colour associated test based on the Luster Color Test was used to carry out the survey. Fifty child patients aged four to sixteen were asked to look at two specially designed colour cards and to name their preferences and associations on each of the colour.

The Beneficial Effect of Enriched Environment on Pathogenesis of Alzheimer’s Disease

Alzheimer’s disease (AD) is a common neurodegenerative disease, its main clinical symptoms are the progressive decline of cognitive and memory functions. Enriched Environment (EE) achieves the goal of improving brain cognitive reserve by enhancing the multi-directional stimulation on movement, sensory and cognitive systems of animals. And EE can regulate the levels of various trophic factors in the brain, promote synaptic regeneration and enhance neural plasticity to reduce the loss of neurons induced by inflammation. At present, there is still no effective treatment for AD and the clinical intervention drug is expensive. So it is essential to actively explore non-drug treatment. This review will explain the effects of EE on learning ability, memory ability and mental behavior in AD, and provide a new direction for the treatment and rehabilitation of AD.

转型环境与混合情绪对新手创业拼凑的组态效应:一个fsQCA的实证分析

通过构建“情绪-环境-行为”的研究框架,探究混合情绪与转型环境的4个前因条件对创业新手创业拼凑的组态效应。对162份调查问卷数据的QCA分析发现:(1)单一情绪或环境因素不构成创业拼凑发生的必要条件;(2)导致创业新手投入拼凑的前因组态有2个,即高积极情绪*高消极情绪*低环境敌对性*高环境动态性、低积极情绪*高消极情绪*高环境敌对性*高环境动态性;(3)导致创业新手顾客拼凑的前因组态有1个,即高积极情绪*高消极情绪*高环境敌对性*高环境动态性;(4)导致创业新手制度拼凑的前因组态有2个,即低积极情绪*高环境敌对性*高环境动态性、高消极情绪*高环境敌对性*高环境动态性。研究丰富和深化了创业拼凑前因的研究文献,拓宽了情绪-环境的组态视角,为新手创业拼凑实践提供了参考与建议。

甲状腺相关眼病的危险因素研究进展

甲状腺相关眼病(TAO)是成人较多见的眼眶疾病之一,它与自身免疫性甲状腺疾病有着密不可分的关系。TAO可引起患者容貌损害,严重者可以引起患者视功能受损,甚至致盲,极大地损害了患者身心健康及社会功能。早期预测及诊断TAO的发生和发展,及时进行干预治疗有助于改善患者的临床表现,提高患者的生活质量。TAO危险因素众多,受遗传、免疫、环境及全身状态的共同影响。其中环境因素及全身情况可通过早期干预控制疾病进展,使患者受益。本文将与TAO发生相关的危险因素进行综述,以期为TAO的早期预测及诊断提供参考,对高危人群的疾病预防提供思路。

基于多维度策略的学生情感管理能力提升研究

学生情感管理能力关系到学生的身心健康。学生情感管理能力的提升需要从家庭、学校、社区、学生自身等多维度采取策略。家庭需要从加强家庭沟通、建立稳定的家庭规则、鼓励学生进行情绪识别和表达、创造积极的学习环境、监护人参与教育的过程等方面优化家庭情感培养的环境;学校需要从整合情感教育课程、采用互动式教学、建立积极的师生关系和支持系统、提高学生的自我意识和心理健康、加强家校合作和持续改进、建立起情感教育的效果评估方法等方面来改进学校的情感教育策略;家、校、社区、政府及非政府组织需要共同协作,构建起学生情感管理能力培养的社会支持系统;学生自身需要培养个人自我调节能力。

西南联大教师兼职研究

在时空不稳定的战争时期,西南联合大学的教学与研究资源受到限制,大后方物价的飞涨导致教师生活难以为继,联大教师相继兼职。这种兼职产生了多方面影响:在一定程度上,主业时间的压缩不可避免地影响了教学工作;学者的社会参与和市场活动改变了其生活样态和思想观念,推动了近代大学价值取向的变迁,使大学的社会服务功能进一步凸显,大学的学术体制在教师的流动中也有所调适;文化资源的流入与再生,则带动了西南地区政治、经济和文化的发展。

教师课堂情绪对高职学生学业成就的影响机制——基于扎根理论的探索性研究

在高职教育质量提升的关键时期,学生学业成就成为衡量教育成效的核心指标。本研究聚焦于高职院校教师课堂情绪对学生学业成就的影响机制,采用扎根理论进行深入探讨。研究发现,教师与学生之间的积极情绪互动不仅能够促进良好的师生关系,还能直接影响学生的学习态度、技能、动机和学习投入,从而对学生的学业成就产生积极影响。因此,建议在教学实践中注重培养积极的情感互动,并营造支持性的师生关系,这对于提升学生的学业表现至关重要。

基于维度情绪模型的智能化灯光交互镜面装置设计研究

探究智能家居场景中用户情绪与灯光效果的情感化交互设计方法。基于维度情绪模型,解析用户情绪对灯光色彩、灯光动态变化的偏好;基于深度学习技术,建立多模态情绪识别与维度情绪表示方法;通过设计智能化灯光交互镜面装置,实现用户情绪与灯光色彩、灯光动态变化的创新交互方式。构建了情感化的灯光交互设计方案,实现了一种实时对用户情绪做出反馈的智能化灯光交互镜面装置。提出了情绪识别与情感化灯光交互的设计方法,可以为情感化的智能家居产品设计提供实践经验与思路,展开情感化交互设计探索的新视角。

新质生产力赋能乡村人居环境现代化治理的机理、机制与策略

随着经济社会的快速发展,新质生产力成为推动乡村人居环境现代化治理的重要动力。对此,深入探讨新质生产力与乡村人居环境现代化治理的关联机理,揭示其内在机制,并提出具体的实施策略。先从理论层面分析新质生产力的内涵及其对乡村发展的推动作用,明确新质生产力与乡村人居环境现代化治理的互动关系。进而通过改善生产模式、优化资源配置、提升生态环境质量等方式,促进乡村人居环境现代化治理的成效。为实现新质生产力赋能乡村人居环境现代化治理的全过程,今后应深化科技创新与应用,改进乡村治理体系,完善激励约束机制,并加强人才支持,以科学指导乡村人居环境现代化治理的理论与实践。

人与环境的互动:拔尖创新学习行为的激发与保护

揭示个体与教育环境的动态交互,是拔尖创新人才培养研究的重点和难点。为阐释能够激发、保护拔尖创新学习行为的一般性环境特征及其影响机制,文章以国立西南联合大学为案例,通过“六维度学习轮”框架分析,尝试归纳人与环境互动的科学范型。研究结果表明,“小、严、容、静”的教育环境有助于激发自主学习、自由探索、自我管理:一是小型规模,紧密的共同体有利于志同道合关系的形成;二是严谨治学,严格选拔造就群贤毕至环境,严苛考核奠定扎实基础;三是包容氛围,多元与容错空间促进自主选择和创新能力发展;四是宁静致远,着眼长远的环境涵养虚壹而静的学术品质。在高等教育普及化的今天,我国拔尖创新人才培养面临新的情况,虽然不能照搬历史,但可以理性认识、择善而从。规模上,由于优质教育资源尚不充分,无法满足全面的因材施教,应减缓专项计划扩张速度,适度控制培养规模;质量上,改变“重选拔、轻培养”松懈育人过程,在人与环境互动上精耕细作,提高既有规模的成材率;氛围上,破除约束学生成长的条框限制,促进个性发展;方式上,赋予学生更多自主空间,突破疲于应付、难以专注的学习困境。

Anti-tumor efficacy of Calculus bovis: Suppressing liver cancer by targeting tumor-associated macrophages

Despite significant advances in our understanding of the molecular pathogenesis of liver cancer and the availability of novel pharmacotherapies,liver cancer remains the fourth leading cause of cancer-related mortality worldwide.Tumor relapse,resistance to current anti-cancer drugs,metastasis,and organ toxicity are the major challenges that prevent considerable improvements in patient survival and quality of life.Calculus bovis(CB),an ancient Chinese medicinal drug,has been used to treat various pathologies,including stroke,convulsion,epilepsy,pain,and cancer.In this editorial,we discuss the research findings recently published by Huang et al on the therapeutic effects of CB in inhibiting the development of liver cancer.Utilizing the comprehensive transcriptomic analyses,in vitro experiments,and in vivo studies,the authors demonstrated that CB treatment inhibits the tumor-promoting M2 phenotype of tumor-associated macrophages via downregulating Wnt pathway.While multiple studies have been performed to explore the molecular mechanisms regulated by CB,this study uniquely shows its role in modulating the M2 phenotype of macrophages present within the tumor microenvironment.This study opens new avenues of future investigations aimed at investigating this drug’s efficacy in various mouse models including the effects of combination therapy,and against drug-resistant tumors.

情感体验视角下的乡村人居环境评价与建设研究

为促进合肥地区乡村人居环境高质量发展,本文对情感理论和合肥市乡村现状进行了研究,通过层次分析法对乡村情感关联要素进行分析,将各项要素对乡村的情感影响程度量化,在此基础上建立了模糊综合评价模型。同时,以合肥市蜀山区小岭南村为例,进行乡村情感程度评价实验,并根据评价结果提出了相关优化策略,以期为未来小岭南村的人居环境提升提供一定参考。

婴幼儿电子产品使用:家庭因素的预测作用及其与婴幼儿发展的关系

本研究采用问卷法,对来自浙江省206名育有1~3岁婴幼儿的家长进行调查,了解婴幼儿使用电子产品的现状及考察家庭相关因素的预测作用,并进一步探究电子产品使用与婴幼儿情绪与社会性发展之间的关联。结果显示:(1)超过八成的婴幼儿已经开始使用电子产品,1岁婴幼儿虽不建议使用,但较多已经开始接触,2~3岁婴幼儿整体上日均使用时长较为合理。(2)家庭养育环境能够预测婴幼儿的电子产品使用内容;家长让婴幼儿使用电子产品的目的和家长的干预行为则能够预测婴幼儿的电子产品使用时长和内容。(3)电子产品日均使用时长和周频率对婴幼儿情绪与社会性发展的预测作用不显著,但电子产品使用内容对婴幼儿具有一定的影响,即婴幼儿观看儿童教育类节目的频率越高,其行为问题越少。研究结论启示,家长应限制婴幼儿使用电子产品时长,帮助其选择具有教育价值的内容,同时要更注重与婴幼儿的真实人际互动。

Influence of built environment and user experience on the waterfront vitality of historical urban areas: A case study of the Qinhuai River in Nanjing, China

Urban waterfronts are important gateways that reflect a city’s image and characteristics.Evaluating waterfront vitality and its influencing factors is critical for guiding urban waterfront planning and redevelopment.Hourly human movement data,provided by the Baidu Heatmap,were used to explore the weekday and weekend urban vitality spatial distribution characteristics of the waterfronts of the Qinhuai River in Nanjing.Global(ordinary least squares)and local(multiscale geographically weighted regression)models revealed the influence of physicaleenvironmental characteristics(objective)and spatial experience evaluation factors(subjective)on urban vitality.(1)The Qinhuai River waterfront urban vitality agglomeration characteristics were similar between weekdays and weekends,and the core vitality areas were distributed in the dense tourism,commercial,and residential areas along the river.(2)The evaluation of catering experience had the strongest positive correlation with vitality,whereas the waterfront distance had the strongest negative correlation.(3)The influence of each factor on waterfront vitality in the study area exhibited considerable spatial differences,with attenuation trends observed from the east-to-west river sections.This study shows the urban vitality distribution characteristics of the Qinhuai River waterfront spaces.Exploring the influence of physicaleenvironmental and spatial evaluation factors on the vitality distribution can provide a scientific basis and reference for urban waterfront planning and redevelopment focusing on cultivating vitality.