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IMPLEMENTATION OF THE '数字素养 (SHÙZÌ SÙYǍNG)' INSTRUMENT TO MEASURE THE DIGITAL LITERACY LEVEL OF MANDARIN LANGUAGE EDUCATION STUDENTS

open access: yesJurnal Teknologi Pendidikan : Jurnal Penelitian dan Pengembangan Pembelajaran
The current presence of the internet undeniably facilitates and accelerates individuals' ability to access and disseminate information, even leading to an information explosion. To manage this situation, digital competence is required to face the 6.0 era.
Aiga Ventivani   +3 more
openaire   +1 more source

牛山湖两种优势小型鱼类空间分布与沉水植被的关系! [PDF]

open access: yes, 2012
运用8种网目规格的成套浮性刺网作为鱼类采样工具,于2005年夏季在长江中游浅水草型湖泊牛山湖进行鱼类定量采样,通过比较不同茂密程度黄丝草生境中的小型鱼类组成、数量和大小结构,探讨此类湖泊小型鱼类的空间分布特征及其与沉水植被的关系.采样期间共捕获13种1124尾鱼,依据其等级丰度和出现频次,和红鳍原!为该湖优势上层小型鱼类.在调查的沉水植物生物量范围内,鱼类物种丰富度和Shannon多样性指数与沉水植物生物量之间呈现倒抛物线关系;两种优势小型鱼类的种群丰度均与沉水植物生物量有着显著的线性正相关关系 ...
刘家寿   +3 more
core  

First Confirmed Cooperative Breeding of the Brown Hornbill (Anorrhinus austeni) in China at the Sino–Lao Frontier 中国中老边境尚勇保护区首次记录白喉犀鸟 (Anorrhinus austeni) 的合作繁殖行为

open access: yesIntegrative Conservation, EarlyView.
First confirmed breeding of the Brown Hornbill in China, documented through cooperative feeding in Shangyong Protected Area. ABSTRACT The Brown Hornbill (Anorrhinus austeni), a Near Threatened frugivore, reaches the northern edge of its distribution in southern Yunnan, China, yet breeding had not been previously documented with site‐attributed nests in
Junsong Li   +8 more
wiley   +1 more source

Morpholoical variation of fruits and seeds of Sinocalycanthus chinensis and its correlation with environment factors(夏蜡梅果实和种子形态变异及其与环境因子相关性)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2007
对天台大雷山4个不同生境(常绿阔叶林、灌丛、竹林和杉木林)夏蜡梅群体的果实、种子形态变异及其与环境因子的相关性进行了研究.测量的果实和种子12项形态学指标表明,果实和种子的性状以灌丛生境最优、其次是竹林生境、最差的是常绿阔叶林生境.表型性状在群体间和群体内都存在着一定程度的变异,其中群体间的变异系数的平均值从61.71(每果种子数)到7.51(种子厚).夏蜡梅种子形态较果实形态穗定.单因素方差分析显示,夏蜡梅果实和种子形态在不同生境间差异显著,其中80%以上的变异来源于生境内 ...
ZHANGWen-biao(张文标)   +1 more
doaj   +1 more source

The impacts of habitat heterogeneity of mangroves on mollusks diversity at Dongzhaigang Bay, Hainan [PDF]

open access: yes, 2016
包括软体动物在内的大型底栖动物是红树林生态系统的重要组成部分,几乎在所有的红树林生境类型中都能够发现它们的存在,其在红树林中占据了重要的生态位,通过穴居、取食等活动改变着红树林有机物循环的物理和化学过程,对红树林生态系统的结构和功能的维持具有非常重要的作用,是红树林生态系统中食物网的重要环节。本文选取了海南省东寨港国家级自然保护区内三个不同地点的红树林从空间尺度方面对其中的软体动物分布进行了研究。此外还比较了不同地点的红树植物群落内软体动物分布的特点。 选择了海南东寨港的湾口(塔市)、中部(后排 ...
章慧
core  

“Not a Single Leaf Is Meant to be Taken With You”: Conservation Motivations and Belief Systems in a Khasi Sacred Landscape of Meghalaya, India “一片叶子都不许带走”:印度梅加拉亚邦卡西族神圣景观中的保护动机与信仰体系

open access: yesIntegrative Conservation, EarlyView.
This study examines the Mawphlang Sacred Forest in Meghalaya as a culturally embedded model of community‐led conservation. Drawing on qualitative fieldwork, it highlights how spiritual reverence, sacred taboos, and ancestral authority shape ecological stewardship, complementing formal governance systems.
Mrinal Saikia
wiley   +1 more source

压力罐消解能谱法测定海洋生物中的210Po

open access: yesHe jishu
海产品中的210Po是人体内照射剂量的主要来源,准确测定海洋生物中210Po的比活度尤为重要。本文建立了海洋生物中210Po的压力罐消解-α能谱检测方法。该方法以209Po为产额示踪剂,海洋生物样品经压力罐消解处理后,在盐酸体系中用镍片自沉积方法分离210Po,使用α能谱仪进行测量。在本方法测定条件下,标准物质的测定结果与标准值一致,相对标准偏差为9.0%,全程放化回收率为92.9%~98.6%,方法检出限为0.18 Bq·kg-1。该方法操作简便高效、环境友好、回收率高且测定结果准确可靠 ...
林 静   +3 more
doaj   +1 more source

Floristic analysis of the seed plants from Yandang Mountain of Yueqing, Zhejiang(浙江乐清雁荡山种子植物区系分析)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2018
在文献查阅、野外调查和标本鉴定的基础上,对浙江乐清雁荡山种子植物区系特征进行了统计分析,得到:(1)区域内共有野生种子植物732种(含种下类群),隶属147科、433属;科、属水平显示出多样性,含1个种的科和属分别占总科数和总属数的41.5%和67.9%. (2)科的分布区类型中,热带成分有64科,占总科数的42.9%,温带成分共36科,占24.6%;属的分布区类型中,热带成分和温带地理成分分别占总属数的49.1% 和50.9%,泛热带分布及其变型所占比例最大,为24.1%.
CHENWeijie(陈伟杰)   +3 more
doaj   +1 more source

Research on Optimization of Fe Clusters Structure Based on Structural Clustering Niche Differential Evolution Algorithm [PDF]

open access: yes, 2016
团簇被称之为“物质第五态”。它是材料科学的新起点,在许多领域都有着广泛的应用。团簇的稳态结构对其独特的物理和化学等性质起到了至关重要的作用,因而受到许多学者的广泛关注。由于团簇的大小在几埃到几百埃之间,尺寸非常小,用实验设备很难合成和直接观测。因此用理论研究的方法来探究团簇的稳态结构显得十分重要。但是寻找团簇的稳态结构十分困难,除了基态结构之外,还存在成千上万的亚稳态结构。目前团簇优化问题已被学者证明为NP难问题,因此用传统的优化方法难以获得最优解,于是使得基于进化算法的全局优化方法得到了广泛应用 ...
郑骥文
core  

Justice in coexistence: Pastoralism and large carnivores on the Qinghai‐Tibet Plateau

open access: yesPeople and Nature, EarlyView.
Abstract The conflict between livestock husbandry and large carnivore conservation presents significant challenges in grassland ecosystems worldwide. Achieving sustainable coexistence among herders, livestock and large carnivores requires reconciling diverse perspectives and interests through equitable, inclusive and fair processes that address both ...
Yufang Gao, Yue Yu
wiley   +1 more source

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