Results 21 to 30 of about 184,145 (152)

高变异Y染色体短串联重复片段检验体系的建立及对北方汉族群体调查

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2021
目的建立一套五色荧光复合扩增体系,并调查中国北方汉族遗传多态性和父子家系突变情况。方法根据文献筛查出在中国某一群体中突变率为高变异和快速变异的Y-STR基因座,建立一套五色荧光Y-STR复合扩增体系,计算在500个北方汉族无关男性个体中的基因多样性,观察每个样本的Y-STR单倍型,并对中国北方汉族500个父子对进行检测,统计父子间的突变情况。结果成功构建了包含21个Y-STR基因座复合扩增检验体系,在北方汉族群体中基因多态性在0.402 3~0.990 4之间,500个无关个体中未发现有相同的单倍型 ...
李运丽   +6 more
doaj  

Genomics‐informed management of ex situ populations

open access: yesConservation Biology, EarlyView.
Abstract The European Association of Zoos and Aquariums (EAZA) manages insurance populations for hundreds of species through its EAZA ex situ programs (EEPs). EEPs help safeguard against extinction in the wild and provide source populations for genetic rescue programs.
Cock van Oosterhout   +8 more
wiley   +1 more source

Reconceptualising Motivation as Material‐Semiotic Entanglements: Translanguaging in Graduate TESOL Education

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT Multilingual students in Anglophone universities often operate in survival mode. While translanguaging supports learning, critical gaps remain in understanding how translanguaging pedagogies transform and sustain motivation in English‐dominant contexts.
Melissa Jufenna Slamet, Julie Choi
wiley   +1 more source

Coalition Breakdown and Subsystem Exit

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT Why actors choose to work together (or not) to advance policy has been the central area of inquiry within the Advocacy Coalition Framework (ACF). Existing research has mainly emphasized the pathway towards coalition formation and evolution, underscoring the stable patterns of allies and opponents observable in policy processes over a decade or
Charlie F. Thompson
wiley   +1 more source

The Making of the Right to Food: Tracing Food Policy Conflict and Negotiated Outcomes in Colombia

open access: yesWorld Food Policy, Volume 12, Issue 2, November 2026.
ABSTRACT The 2016 Peace Agreement between the Colombian Government and the FARC guerrilla group marked a historic step toward ending more than five decades of armed conflict. It also reshaped national food policy with lasting implications. During the negotiations, deep ideological divisions emerged between food sovereignty and food security, and these ...
Felipe Roa‐Clavijo
wiley   +1 more source

Integrating Human Rights Into Food Systems Policy to Progress the Fulfillment of the Right to Adequate Food—Enablers, Barriers, and Windows of Opportunity

open access: yesWorld Food Policy, Volume 12, Issue 2, November 2026.
ABSTRACT Prevailing levels of hunger, malnutrition, and food insecurity—driven by conflict, global economic crises, and ecological destruction—are threatening fulfillment of the right to adequate food. The integration of human rights in food systems policies can address these challenges; however, progress in the adoption of human rights–based ...
Ellen Johnson   +4 more
wiley   +1 more source

Who Owns the Landscape? Policy Conflict Over the Proposed Designation of Křivoklátsko as a National Park

open access: yesReview of Policy Research, Volume 43, Issue 6, November 2026.
ABSTRACT Nature conservation conflicts increasingly extend beyond ecological objectives to disputes over decision‐making legitimacy, institutional authority, and competing understandings of landscape and expertise. This article examines the conflict over the proposed designation of Křivoklátsko as a national park in the Czech Republic between 2021 and ...
Filip Simon
wiley   +1 more source

两种裸藻的无叶绿体突变株

open access: yes, 2002
利用 Ofloxacin处理获得了纤细裸藻和中型裸藻无叶绿体突变株。吸收光谱测定和自荧光显微观察证明突变株无叶绿素合成 ,DAPI染色方法显示突变株细胞不存在质体 DNA,而无色的长变胞藻细胞中仍有可检测质体 DNA,说明二突变株质体已消失。 SDS ...
王江新,施之新,徐旭东
core   +2 more sources

In‐Situ Construction of Multi‐Scale Heterogeneous Structures in L‐DED IN718 Coatings via WMoTaNb Incorporation for Enhanced Strength‐Toughness Synergy

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT To improve the strength–toughness balance of IN718, and alleviate the brittleness commonly associated with refractory high‐entropy alloys, this study proposes a novel strategy to fabricate defect‐free IN718/WMoTaNb heterogeneous multiprincipal element alloy coatings via laser‐directed energy deposition.
Zhao Wang   +7 more
wiley   +1 more source

中国东北地区非综合征性耳聋患者GJB2基因的致聋突变分析

open access: yesZhongguo shiyan zhenduanxue, 2006
目的分析58例中国东北地区非综合征性耳聋(nonsyndromic hearing impairment,NSHI)患儿GJB2基因突变类型和频率。方法收集吉林省吉林市聋哑学校的58例非综合征性耳聋患儿(分别来自57个家庭)及37例听力正常家属的血样,经聚合酶链反应(polymerase chain reaction,PCR)扩增GJB2基因编码区,用酶切方法初步分析已知的233-235位点,进一步行DNA测序证实酶切结果并发现新的突变类型;同时对部分家属进行DNA测序 ...
于飞   +11 more
doaj  

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