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博士后对学术职业环境满意吗?——基于Nature全球博士后调查数据比较分析
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作者 朱华伟 《高教探索》 CSSCI 北大核心 2024年第4期81-91,共11页
本研究基于已有成果,将博士后学术职业环境划分为学术资源、职业保障、组织管理、科研强度四个维度。利用2020年Nature全球博士后教育调查数据,通过比较分析博士后对学术职业环境的感知与评价。研究发现,相比较国外发达国家博士后而言,... 本研究基于已有成果,将博士后学术职业环境划分为学术资源、职业保障、组织管理、科研强度四个维度。利用2020年Nature全球博士后教育调查数据,通过比较分析博士后对学术职业环境的感知与评价。研究发现,相比较国外发达国家博士后而言,我国接近四成博士后对学术职业环境感到满意。为了优化博士后学术职业环境,大学需强化对博士后科研资金的支持力度,保障博士后科研参与机会,减少非学术事务对博士后科研时间的挤占,规范导师指导;大学不断调适大学基层学术组织治理模式,优化院系对博士后学术职业发展的组织支持与服务质量;大学与博士后建立稳定性雇佣关系,不断提升工资薪酬水平,疏通博士后学术职业晋升渠道,营造良好的工作环境;高校实行服务型、便捷式的科研管理方式,制定灵活多元的学术评价机制,破除博士后对“学术GDP主义”的崇拜。 展开更多
关键词 博士后 学术职业环境 满意度 nature 比较
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The Alienation of Nature in Emily Dickinson’s Poems through the Prism of Taoism
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作者 LI Dong-qing 《Journal of Literature and Art Studies》 2024年第3期186-193,共8页
In the poems created by the renowned American poet Emily Dickinson,those related to nature constitute a considerable proportion.However,Dickinson’s attitude toward nature is,in fact,contradictory.On the one hand,Dick... In the poems created by the renowned American poet Emily Dickinson,those related to nature constitute a considerable proportion.However,Dickinson’s attitude toward nature is,in fact,contradictory.On the one hand,Dickinson perceives nature as gentle and kind,akin to a mother.Nature is regarded as“heaven”and embodies harmony.On the other hand,nature possesses its own operational principles and harbors inherent cruelty.According to Dickinson,humans should refrain from excessive interference in the natural order.This article attempts to analyze the similarities in attitude towards nature between Dickinson’s poetry and Taoist philosophy. 展开更多
关键词 Emily Dickinson ALIENATION nature TAOISM
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Problems and Development Suggestions of Nature Education in Jiangxi Province
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作者 Hua LI Shinan XIANG Feiping CHEN 《Meteorological and Environmental Research》 2024年第1期46-47,56,共3页
The forest coverage rate of Jiangxi Province ranks second in China.It has rich natural resources,a long history of ancient color culture and rich red culture.In the development of nature education,Jiangxi Province has... The forest coverage rate of Jiangxi Province ranks second in China.It has rich natural resources,a long history of ancient color culture and rich red culture.In the development of nature education,Jiangxi Province has great potential and advantages.This paper introduces the development conditions of nature education in Jiangxi Province,summarizes the problems existing in the development of nature education in Jiangxi Province from the aspects of the types of nature education and the construction of nature education base,such as simple content and single form,imperfect infrastructure and lack of professionals,and puts forward some suggestions on the development of nature education in Jiangxi Province. 展开更多
关键词 Jiangxi Province nature education PROBLEM Development suggestion
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The Macrolichens of Barluk Mountain National Nature Reserve, Xinjiang Province, China
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作者 Dolathan Toksun Reyhangul Mamatali +3 位作者 Haiying Yong David H. S. Richardson Mark R. D. Seaward Anwar Tumur 《Open Journal of Forestry》 2024年第4期413-432,共20页
A checklist of the macrolichens (foliose, fruticose & squamulose) of Barluk Mountain National Nature Reserve located in northwestern China is presented. It was derived from 47 inventories of preserved and undevelo... A checklist of the macrolichens (foliose, fruticose & squamulose) of Barluk Mountain National Nature Reserve located in northwestern China is presented. It was derived from 47 inventories of preserved and undeveloped areas which yielded more than 670 collections containing 102 taxa (99 species, 1 subspecies, 2 varieties). Eight species were found that were new to Xinjiang, China. Twenty-eight species and 2 varieties were found on rock, 31 species on bark of deciduous and coniferous trees, 26 species on soil and 14 species and 1 subspecies over mosses. Foliose lichens were dominant with 76 species, followed by 16 species of squamulose lichens and 7 species of fruticose lichens. 展开更多
关键词 BIODIVERSITY Mountain Ecosystems Monitoring Climate Change nature Conservation
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Adaptive Network Sustainability and Defense Based on Artificial Bees Colony Optimization Algorithm for Nature Inspired Cyber Security
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作者 Chirag Ganguli Shishir Kumar Shandilya +1 位作者 Michal Gregus Oleh Basystiuk 《Computer Systems Science & Engineering》 2024年第3期739-758,共20页
Cyber Defense is becoming a major issue for every organization to keep business continuity intact.The presented paper explores the effectiveness of a meta-heuristic optimization algorithm-Artificial Bees Colony Algori... Cyber Defense is becoming a major issue for every organization to keep business continuity intact.The presented paper explores the effectiveness of a meta-heuristic optimization algorithm-Artificial Bees Colony Algorithm(ABC)as an Nature Inspired Cyber Security mechanism to achieve adaptive defense.It experiments on the Denial-Of-Service attack scenarios which involves limiting the traffic flow for each node.Businesses today have adapted their service distribution models to include the use of the Internet,allowing them to effectively manage and interact with their customer data.This shift has created an increased reliance on online services to store vast amounts of confidential customer data,meaning any disruption or outage of these services could be disastrous for the business,leaving them without the knowledge to serve their customers.Adversaries can exploit such an event to gain unauthorized access to the confidential data of the customers.The proposed algorithm utilizes an Adaptive Defense approach to continuously select nodes that could present characteristics of a probable malicious entity.For any changes in network parameters,the cluster of nodes is selected in the prepared solution set as a probable malicious node and the traffic rate with the ratio of packet delivery is managed with respect to the properties of normal nodes to deliver a disaster recovery plan for potential businesses. 展开更多
关键词 Artificial bee colonization adaptive defense cyber attack nature inspired cyber security cyber security cyber physical infrastructure
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《Nature》揭示:禁食机制下的脂肪依赖性肿瘤会消退
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《上海医药》 CAS 2024年第15期72-72,共1页
近日,一篇发表在《Nature》上的研究显示,研究发现了一种能让小鼠摆脱胰腺癌的新方法,该疗法通过抑制脂肪代谢,切断肿瘤的能量供应,只要小鼠持续遵循生酮饮食,肿瘤生长便会停滞。研究中,研究团队聚焦于机体在禁食状态下如何转向脂肪作... 近日,一篇发表在《Nature》上的研究显示,研究发现了一种能让小鼠摆脱胰腺癌的新方法,该疗法通过抑制脂肪代谢,切断肿瘤的能量供应,只要小鼠持续遵循生酮饮食,肿瘤生长便会停滞。研究中,研究团队聚焦于机体在禁食状态下如何转向脂肪作为能源的问题。研究者发现直接关联到胰腺癌的生物学研究,首次揭示了真核生物翻译起始因子(eukaryotic translation initiation factor,eIF4E)在禁食期间如何调控机体代谢,使其从消耗碳水化合物转变为消耗脂肪。 展开更多
关键词 nature 生酮饮食 胰腺癌 EIF4E 禁食 脂肪代谢 能量供应 肿瘤
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Nature’s Gift
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《ChinAfrica》 2024年第7期62-63,共2页
NATURAL WONDERS IN CHINA AND AFRICA Qilian Mountains National Park Located in Northwest China’s Gansu and Qinghai provinces,Qilian Mountains National Park spans 50,200 square km,serving as a vital ecological security... NATURAL WONDERS IN CHINA AND AFRICA Qilian Mountains National Park Located in Northwest China’s Gansu and Qinghai provinces,Qilian Mountains National Park spans 50,200 square km,serving as a vital ecological security barrier and water source conservation area in west China.Established in 2017 to address ecosystem damage,intensive food chain protection and wildlife monitoring in the area began in early 2011. 展开更多
关键词 NORTHWEST nature GANSU
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《Nature》子刊:苏佳琪等开发基于牛奶的水凝胶,用作酒精中毒的解毒剂
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《上海医药》 CAS 2024年第9期107-107,共1页
近日,苏黎世联邦理工学院Raffaele Mezzenga、苏佳琪等人在《Nature》子刊《Nature Nanotechnology》上发表的一篇研究显示,该研究开发了一种口服的、基于牛奶蛋白的水凝胶——FeSA@FibBLG,或可作为急性酒精中毒的有效解毒剂,能够稳定... 近日,苏黎世联邦理工学院Raffaele Mezzenga、苏佳琪等人在《Nature》子刊《Nature Nanotechnology》上发表的一篇研究显示,该研究开发了一种口服的、基于牛奶蛋白的水凝胶——FeSA@FibBLG,或可作为急性酒精中毒的有效解毒剂,能够稳定耐受胃酸消化且持续显著降低酒精中毒小鼠血液中的酒精水平,同时避免额外积累有毒的乙醛,还可增强肝脏保护,并显著减轻肠道损伤和生态失调,强调了其作为酒精相关疾病的新疗法的潜力。 展开更多
关键词 急性酒精中毒 nature 肝脏保护 生态失调 解毒剂 水凝胶 牛奶蛋白 肠道损伤
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Spatiotemporal Evolution of Ecological Quality in Alpine Freshwater Lake Nature Reserves in the Past 20 Years
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作者 Denghong HUANG Chenli LIAO +1 位作者 Zhenzhen ZHANG Jintong REN 《Meteorological and Environmental Research》 2024年第2期29-36,共8页
The Caohai Nature Reserve is one of the three major plateau freshwater lakes in China.Since the 1950s,human activities such as land reclamation and population relocation have greatly damaged Caohai.A rapid evaluation ... The Caohai Nature Reserve is one of the three major plateau freshwater lakes in China.Since the 1950s,human activities such as land reclamation and population relocation have greatly damaged Caohai.A rapid evaluation of the spatiotemporal evolution trend of the ecological quality of the Caohai Nature Reserve is significant for the maintenance and construction of the ecosystem in this area.The research is based on the Google Earth Engine(GEE)remote sensing cloud computing platform.Landsat TM/OLI images from May to October in five time periods:2000-2002,2004-2006,2009-2011,2014-2016,and 2019-2021 were obtained to reconstruct the optimal cloud image set by averaging the images in each time period.By constructing four ecological indicators:Greenness(NDVI),Wetness(Wet),Hotness(LST),and Dryness(NDBSI),and using Principal Component Analysis(PCA)method to obtain the Remote Sensing Ecological Index(RSEI)for the corresponding years,the spatiotemporal variation of ecological quality in the Caohai Nature Reserve over 20 years was analyzed.The results indicate:①the mean value of RSEI increased from 0.460 in 2000-2002 to 0.772 in 2019-2021,a 67.83%increase,indicating a significant improvement in the ecological quality of the reserve over the 20 years;②from the perspective of functional zoning of the Caohai Nature Reserve,the ecological quality of the core area showed a degrading trend,while the ecological quality of the buffer zone and experimental zone significantly improved;③with the implementation of ecological restoration projects,the ecological quality of the reserve gradually recovered and improved from 2014 to 2021.The trend of RSEI value changes is well correlated with human interventions,indicating that the PCA-based RSEI model can be effectively used for ecological quality assessment in lake areas. 展开更多
关键词 Ecological restoration Ecological quality Remote sensing ecological index Google Earth Engine Caohai nature Reserve
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《Nature》:新开发的可穿戴超声贴片可连续、无创监测大脑血流
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《上海医药》 CAS 2024年第11期106-106,共1页
近日,一篇发表在《Nature》上的研究显示,研究人员开发出一种可穿戴超声贴片(wearable ultrasound patch),其可对大脑血流进行连续、无创的监测。该研究将贴片在36名健康志愿者身上进行了测试,以检验其测量脑部主要动脉血流速度(收缩期... 近日,一篇发表在《Nature》上的研究显示,研究人员开发出一种可穿戴超声贴片(wearable ultrasound patch),其可对大脑血流进行连续、无创的监测。该研究将贴片在36名健康志愿者身上进行了测试,以检验其测量脑部主要动脉血流速度(收缩期峰值、平均流速和舒张末期速度)的能力,发现测量结果与传统超声探头的测量结果非常吻合。 展开更多
关键词 动脉血流速度 收缩期峰值 nature 超声探头 可穿戴 舒张末期 平均流速 无创监测
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A Study of the People’s Nature in Woodcuts During the Anti-Japanese War in Shanxi
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作者 ZHANG Tong-yuan 《Journal of Literature and Art Studies》 2024年第11期1032-1040,共9页
The anti-Japanese woodcuts focus on the red revolutionary culture and describe the connotation of the Anti-Japanese War era,which is self-evident in the commemorative value of China’s revolutionary struggle history.F... The anti-Japanese woodcuts focus on the red revolutionary culture and describe the connotation of the Anti-Japanese War era,which is self-evident in the commemorative value of China’s revolutionary struggle history.For example,in Shanxi,China,woodcut art activities and social practice promotion activities organized around the theme of the Anti-Japanese War are also everywhere,which all show the people’s nature of the Chinese people during the revolutionary struggle from the two aspects of the red culture of the Anti-Japanese War and traditional art and culture,and its humanistic connotation is quite profound.In this paper,we first introduce the historical origin of woodcut during the Anti-Japanese War,and then show the people’s value connotation of woodcut art activities in Shanxi.This paper mainly discusses the image narration,language and picture narration and construction significance of woodcuts in Shanxi’s War of Resistance,fully reveals the narrative nature of image media,strives to arouse people’s recognition of this period of Shanxi’s War of Resistance culture and history,and reflects the realistic value and significance of Shanxi’s War of Resistance Woodcuts art activities. 展开更多
关键词 people’s nature Shanxi anti-Japanese woodcarving image media narrative synergistic effect construction significance humanistic cultural identity
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《Nature》:科学家发现能驱动患者狼疮发生的两种细胞缺陷
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《上海医药》 CAS 2024年第13期61-61,共1页
近日,一篇发表在《Nature》上的研究显示,研究发现了一种特殊的分子缺陷或会促进系统性红斑狼疮的病理性免疫反应,同时揭示了逆转这一缺陷或有望逆转疾病。该研究中,研究人员报道了驱动狼疮发生的新通路,研究者表示,患者体内血液中的多... 近日,一篇发表在《Nature》上的研究显示,研究发现了一种特殊的分子缺陷或会促进系统性红斑狼疮的病理性免疫反应,同时揭示了逆转这一缺陷或有望逆转疾病。该研究中,研究人员报道了驱动狼疮发生的新通路,研究者表示,患者体内血液中的多种分子都会发生疾病相关的改变,最终,这些变化会导致芳香烃受体(aryl hydrocarbon receptor,AHR)所控制的通路激活不足,AHR能调节细胞对环境污染物、细菌或代谢产物的反应。 展开更多
关键词 病理性免疫反应 系统性红斑狼疮 芳香烃受体 nature 环境污染物 体内血液 AHR 分子缺陷
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“Eternal Motion” as a “Form of Movement of a Special Nature” and the Main Condition for the Creation of the Universe
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作者 Avas Khugaev Eugeniya Bibaeva 《Journal of Applied Mathematics and Physics》 2024年第6期2041-2068,共28页
The article hypothesizes that DE and DM (UCM) are a “Form of Motion of a Special Nature”, where “Form of Motion” means “Eternal Motion” as the power of dynamics of different levels and varying degrees of self-su... The article hypothesizes that DE and DM (UCM) are a “Form of Motion of a Special Nature”, where “Form of Motion” means “Eternal Motion” as the power of dynamics of different levels and varying degrees of self-sufficiency, and by “Special Nature”, gravitational and two other properties of matter, “tied” to the “Eternal Movement” and completely dependent on it. Carriers of key properties of a “Special Nature” have been established: “0”-DE particles and “3”-DM particles (UDM). The unity of their inherent “motionally-gravitational” properties and the peculiarity of the relationship between “motion” and “gravity” are revealed: the higher the intensity of “Eternal Motion”, the stronger the gravitational properties of matter are manifested (and vice versa). The relationship of “time” with the “vibration frequency” and the “mass” of photons with the “degree of bonding and deformation properties of the field” is shown. The maximum level of gravity has been determined, which allows Nature to successfully create the Universe: such a landmark is the proximity to the property of the Primary Source—the “pure graviton” of the OSP space, the most powerful “motionally-gravitational” particle of the Universe. The reasons for the emergence of such an identity of the gravitational properties of particles with the indicators of a “pure graviton” are established: for “0”-DE particles, this is the acquisition of the function of “freedom of movement”;for “3”-DM particles (UDM), the creation of a special structure—a “double field” (“Main” and “Small”). The presence in the “double field” of specific “tools” for the creation of the worlds of the Universe—gravitational “waves” gives rise to impulses (shocks) of varying intensity and shape. A list of functions performed by “waves” in the “Main” and “Small” fields has been compiled. The specific conditions for the formation of “UDM Streams”, their transformation into a “Vortex” and, under the influence of a powerful Initial Impulse (push), sending them to the “place” of the creation of galaxies, are shown. It is suggested that there is a “Cycle of Matter in Nature” in the closed structure of our Universe due to the “work” of “waves” and the functioning of special “factories” in the form of exotic space objects—Black holes. 展开更多
关键词 DE DM (UCM) Graviton Eternal motion Double Field of the Universe Motionally-Gravitational Particles Degree of Self-Sufficiency Main Field Small Field Gravitational Waves Primary Impulse Flows UDM Vortex Time Massive Photons Clumps of DM Movement of Galaxies Factories of Black Holes Circulation of Matter in nature
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从近年PNAS,Nature,Science发表的涉及地衣的文章看地衣学进展 被引量:10
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作者 付伟 赵遵田 郭守玉 《菌物研究》 CAS 2007年第3期176-182,共7页
通过分析近10年在PNAS,Nature及Science上发表的涉及地衣的文章,并结合相关文献,总结了当前地衣学研究的主要方面及重要进展。对地衣化石、共生进化、系统发育、共生藻、功能遗传学、地衣生殖及生态生理学等领域取得的成果进行了概述,... 通过分析近10年在PNAS,Nature及Science上发表的涉及地衣的文章,并结合相关文献,总结了当前地衣学研究的主要方面及重要进展。对地衣化石、共生进化、系统发育、共生藻、功能遗传学、地衣生殖及生态生理学等领域取得的成果进行了概述,同时展望了中国地衣学研究的发展前景。 展开更多
关键词 地衣学 PNAS nature SCIENCE
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不公平游戏:“两栖”SCI刊物如何操弄影响因子--Nature实证研究之四 被引量:14
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作者 穆蕴秋 江晓原 《上海交通大学学报(哲学社会科学版)》 CSSCI 北大核心 2016年第2期59-67,共9页
本文结合当今风靡全球的期刊影响力评价指标"影响因子",在实证基础上对Nature从大众科普杂志向"两栖"杂志转变的历史过程进行了考察,揭示了Nature等杂志如何将"两栖化"变成提升影响因子的捷径和扩大商业... 本文结合当今风靡全球的期刊影响力评价指标"影响因子",在实证基础上对Nature从大众科普杂志向"两栖"杂志转变的历史过程进行了考察,揭示了Nature等杂志如何将"两栖化"变成提升影响因子的捷径和扩大商业价值的手段。 展开更多
关键词 影响因子 两栖刊物 汤森路透 nature
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数字出版与高校图书馆的应对——对Springer Nature集团和剑桥大学图书馆的调查 被引量:21
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作者 初景利 闫雪 《图书馆论坛》 CSSCI 北大核心 2020年第9期173-179,共7页
在新技术环境下,出版商和图书馆都在发生深刻变革。研究数字出版及其对图书馆的影响,有助于出版商和图书馆适应变化,应对变革,寻求新的发展机遇。文章采用实地调研方法,获取Springer Nature集团和剑桥大学图书馆在新环境下开展的研究和... 在新技术环境下,出版商和图书馆都在发生深刻变革。研究数字出版及其对图书馆的影响,有助于出版商和图书馆适应变化,应对变革,寻求新的发展机遇。文章采用实地调研方法,获取Springer Nature集团和剑桥大学图书馆在新环境下开展的研究和实践,分析Springer Nature集团在开放数据、开放图书和开放政策方面的研究和举措梳理剑桥大学图书馆在资源建设、服务以及馆员结构等方面的变化。研究表明:出版机构与图书馆是具有竞争与合作关系的利益共同体,需要共同探寻新的业务布局与体系结构。 展开更多
关键词 剑桥大学图书馆 Springer nature集团 数字出版 开放获取
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国际顶级学术期刊《Nature》的发展轨迹及启示 被引量:26
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作者 吴志祥 苏新宁 《图书与情报》 CSSCI 北大核心 2015年第1期27-37,共11页
国际顶级学术期刊《Nature》146年的发展轨迹,诠释了学术期刊厚积薄发的发展规律。持之以恒和与时俱进是《Nature》宝贵而优秀的基因。文章以定性和定量的方式,从文献计量学的视角、人文的视角和国际化的视角三个层面分析和研究《Natur... 国际顶级学术期刊《Nature》146年的发展轨迹,诠释了学术期刊厚积薄发的发展规律。持之以恒和与时俱进是《Nature》宝贵而优秀的基因。文章以定性和定量的方式,从文献计量学的视角、人文的视角和国际化的视角三个层面分析和研究《Nature》的发展轨迹,并与我国一流学术期刊《科学通报》进行对比分析,在此基础上提出了一些针对我国学术期刊发展的启示和建议。 展开更多
关键词 nature 《科学通报》 文献计量学 内容分析法 期刊事业发展
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学术期刊与学术成果影响力主要评价指标差异性研究——以Nature期刊为例 被引量:8
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作者 刘芳 朱沙 《情报杂志》 CSSCI 北大核心 2015年第8期65-69,共5页
当前普遍采用被引频次和影响因子等文献计量指标对学术成果进行定量评价,但学术期刊的影响因子和学术成果的被引频次不能客观、全面地反映其学术价值和社会影响力。利用JCR Web、中科院JCR分区表、SCImago及Altmetric网站等多个角度深... 当前普遍采用被引频次和影响因子等文献计量指标对学术成果进行定量评价,但学术期刊的影响因子和学术成果的被引频次不能客观、全面地反映其学术价值和社会影响力。利用JCR Web、中科院JCR分区表、SCImago及Altmetric网站等多个角度深入分析Nature期刊及其收录论文影响力评价指标之间的差异性,探讨如何综合利用各项评价指标对不同学科的学术期刊及论文进行正确评价的问题。 展开更多
关键词 期刊评价 学术成果 评价差异比较 nature期刊
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Population Density and Habitat Utilization of Ibex(Capra ibex)in Tomur National Nature Reserve,Xinjiang,China 被引量:9
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作者 徐峰 马鸣 吴逸群 《Zoological Research》 CAS CSCD 北大核心 2007年第1期53-55,共3页
Surveys was conducted to study the population density and habitat utilization of the ibex (Capra ibex) in Tomur National Nature Reserve during October- December 2005. The results are as follows: ① The mean group s... Surveys was conducted to study the population density and habitat utilization of the ibex (Capra ibex) in Tomur National Nature Reserve during October- December 2005. The results are as follows: ① The mean group size of the ibex in Tomur Nature Reserve is 8.43 and the population density is 269.76/100 km^2; ② The ibex prefer areas with steep slope (between 30° -45°), broken substrates and cliffs nearby ( 〈 100 m). They avoid grasslands and fiat hillsides; ③The probable reason for this habitat selection is serf-protection. 展开更多
关键词 IBEX POPULATION Habitat utilization Tomur National nature Reserve
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Formation, distribution, and nature of Picea mongolica in China 被引量:5
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作者 邹春静 韩士杰 +1 位作者 徐文铎 苏宝玲 《Journal of Forestry Research》 SCIE CAS CSCD 2001年第3期187-191,210,共5页
Picea mongolica is an endemic and endangered species in China. Ecosystem made of Picea mongolica is a special sandy forest ecosystem in China. It is found at ecotone between forest and steppe, or agricultural district... Picea mongolica is an endemic and endangered species in China. Ecosystem made of Picea mongolica is a special sandy forest ecosystem in China. It is found at ecotone between forest and steppe, or agricultural district and pastoral area. Based on investigation, this paper discussed the formation and distribution of Picea mongolica and studied its nature according to ecotone theory. It is clarified that Picea mongolica belongs to Picea meyeri series. That is to say, it became a local race through long-term adaptation to the local climate, then formed allopatric semi-species, and finally turned into a taxonomical species. Picea mongolica forest is a super zonal climax community developing in ecotone between forest zone and steppe zone. 展开更多
关键词 Picea mongolica Formation Distribution nature Sandy forest ECOTONE
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