Results 41 to 50 of about 18,171 (208)

Metadiscourse and Teacher Moves for Supporting Student Reasoning in Linguistics Classroom Interactions

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT This paper examines the features of metadiscourse across different teacher moves in university linguistics classroom discourse and the teaching strategies reflected in its use. The results reveal that teachers employ diverse metadiscourse during classroom interactions to support student reasoning.
Jingjie Li, Wenjie Hu
wiley   +1 more source

国际鸟类监测项目抽样策略及对我国的启示

open access: yes野生动物学报, 2017
全球生物多样性正在持续丧失,亟须建立大尺度的生物多样性监测网络,获得实时、准确的就地监测数据来识别威胁因素,评估保护进展,降低全球生物多样性丧失速率。鸟类是生物多样性监测的重要指示类群,国际上鸟类监测已有100多年的历史。我国开展了沿海水鸟同步调查、鸟类环志监测等部分鸟类监测项目,并开展了国家尺度的鸟类监测试点工作。抽样设计是影响监测网络能否成功的关键因素,本文通过分析国际上大尺度繁殖鸟类监测项目的抽样设计及其优劣,提出了适合我国繁殖鸟类监测项目的分层抽样设计法 ...
张文文 雍 凡 崔 鹏
doaj  

Patriotic rabbits or toxic men? Media ideology, entextualization, and enregisterment on Chinese interfaces

open access: yesJournal of Linguistic Anthropology, EarlyView.
Abstract This article argues that social actors' media ideologies about digital interfaces are key to the enregisterment of online activities. Focusing on an online register emergent from user activities around Year, Hare, Affair (YHA)—a state‐aligned Chinese animation—I explore how different metadiscourses evaluate this register by entextualizing ...
Jiarui Sun
wiley   +1 more source

世界野生动物保护教育相关法制管理与实践

open access: yes野生动物学报, 2020
人类活动直接或间接地威胁着野生动物的生存,导致许多物种种群数量急剧下降。为保护物种多样性,十分有必要加强野生动物保护教育,调整公众对待野生动物的态度和方式。世界上一些国家关于物种多样性保护教育的法律法规包含在环境教育法中,少数国家制定了专门针对野生动物保护教育的法律。世界野生动物保护教育实践中的成功经验主要有:重视学校的保护教育以及师资的培养;充分发挥非正规教育的力量;利用野生动物保护教育基地开展体验式教育等。世界保护教育相关法律法规及实践经验对加强我国野生动物保护教育的启示有 ...
宋志帆周学红苗震张伟
doaj  

Uncovering the Nanozostera japonica species complex suggests cryptic speciation and underestimated seagrass diversity

open access: yesNew Phytologist, EarlyView.
Summary The importance of marine angiosperms, or seagrasses, as foundation species for marine coastal ecosystems is in marked contrast to their low species number of only 70 described taxa. Seagrass species tend to have very similar overall morphologies dictated by hydrodynamic forces of the ocean environment.
Xiaomei Zhang   +14 more
wiley   +1 more source

基于高通量测序技术对野生和圈养华北豹肠道真菌多样性的分析

open access: yes野生动物学报, 2020
肠道真菌是肠道菌群的重要组成部分,对维系肠道菌群结构与功能发挥了重要的作用。华北豹是国家Ⅰ级保护野生动物,是中国特有的豹亚种,对其肠道真菌多样性的研究是濒危野生动物迁地保护的重要内容。本研究选取24份野生华北豹粪便样品、7份圈养华北豹粪便样品,运用18S rDNA高通量测序技术,测定野生和圈养华北豹肠道真菌多样性。结果表明:子囊菌门(Ascomycota)、担子菌门(Basidiomycota)、毛霉门(Mucoromycota)、壶菌门(Chytridiomycota)、芽枝霉门 ...
华彦 1   +6 more
doaj  

Evaluation of filaggrin 2 expression in dogs with atopic dermatitis before and after oclacitinib maleate administration

open access: yesVeterinary Dermatology, EarlyView.
Background – Canine atopic dermatitis (cAD) is a chronic, inflammatory, multifactorial and pruritic disease. The presence of skin barrier impairment (e.g. filaggrin alterations), along with abnormal immune responses, can negatively impact cutaneous barrier function.
Wendie Roldan Villalobos   +5 more
wiley   +1 more source

张家界荷花国际机场鸟类群落的时空变化

open access: yes野生动物学报, 2017
研究机场及其周边地区鸟类群落的时空变化规律可为鸟击防范提供科学依据。为了评估鸟击风险等级和制定有针对性的鸟击防范措施,2012年3月~2013年2月,我们采用样线法(共设置8条涵盖净空区树林、水域、农田、村落和灌草丛5种生境类型的样线),对张家界荷花国际机场净空区不同季节的鸟类资源进行了实地调查,并通过比较5种生境中鸟类的物种多样性指数、均匀度指数、物种数和种群密度,分析机场鸟类物种多样性与群落结构时空特征。在荷花机场净空区共记录到92种鸟类,隶属于14目、30科,其中候鸟比例接近50%。春 ...
王海燕 张志强 李益得 李中原 程 军 杨道德
doaj  

Effect of a ceruminolytic ear cleaner on clinical, microbiological and ear canal microbiome evolution in canine erythemato‐ceruminous otitis externa associated with proliferation of Malassezia yeasts

open access: yesVeterinary Dermatology, EarlyView.
Background – Erythemato‐ceruminous otitis externa (ECOE) is commonly associated with Malassezia spp. and microbial imbalance. Hypothesis/Objective – To assess the clinical performance of an ear cleaner in dogs suffering from ECOE associated with Malassezia spp. overgrowth and to measure its impact on the microbiota. Conclusions and Clinical Relevance –
Amaury Briand   +11 more
wiley   +1 more source

浅谈高黎贡山社会经济发展与生物多样性的关系

open access: yes野生动物学报, 2002
人类为了满足生活和生产的需要,以前所未有的强度加大了对天然植被的破坏,狩猎、毁林、开荒,导致农林生态环境恶化,水上流失严重,薪材、用材短缺,土地生产力下降,成为制约山区农民生产、生活发展的重要因素,从而给高黎贡山自然保护区资源管理和生物多样性保护带来了极大威胁和压力。开展社会经济发展与生物多样性研究,对实现自然保护区森林资源管理,生物多样性保护和周围农村经济协调发展是大势所需。
焦晓旭
doaj  

Home - About - Disclaimer - Privacy