structural regulation
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2022 ◽  
Author(s):  
Xun-Hui Xu ◽  
Yan-Xiang Li ◽  
Li Zhou ◽  
Na Liu ◽  
Zong-Quan Wu

Macroporous polymer frameworks with a tunable pore size were readily prepared using 4-arm rod-like polymers as building blocks. They showed excellent iodine capture performance with very high efficiency (1 minute) and high capacity (574%).


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kris A. G. Wyckhuys ◽  
Ha Nguyen ◽  
Steven J. Fonte

AbstractSoil invertebrates contribute to multiple ecosystem services, including pest control, nutrient cycling, and soil structural regulation, yet trophic interactions that determine their diversity and activity in soils remain critically understudied. Here, we systematically review literature (1966–2020) on feeding habits of soil arthropods and macrofauna and summarize empirically studied predator–prey linkages across ecosystem types, geographies and taxa. Out of 522 unique predators and 372 prey organisms (constituting 1947 predator–prey linkages), the vast majority (> 75%) are only covered in a single study. We report a mean of just 3.0 ± 4.7 documented linkages per organism, with pronounced taxonomic biases. In general, model organisms and crop pests (generally Insecta) are well-studied, while important soil-dwelling predators, fungivores and detritivores (e.g., Collembola, Chilopoda and Malacostraca) remain largely ignored. We argue that broader food-web based research approaches, considering multiple linkages per organism and targeting neglected taxa, are needed to inform science-driven management of soil communities and associated ecosystem services.


2021 ◽  
Author(s):  
◽  
Ivy Samala Abella

<p>This is a multiple case study which investigates teachers’ pedagogical innovations in cultural minority classrooms using Cultural Historical Activity Theory and Appreciative Inquiry as theoretical lens. Pedagogical innovation refers to a new idea or the development of an existing product, process, strategy, or method in teaching and learning that is applied in a specific context with the intention to create added value or the potential to improve student learning. The purpose of the study was to investigate teachers’ pedagogical innovations in cultural minority classrooms; the ways in which teachers mediate the learning of their students through pedagogical innovations in cultural minority classrooms; and how individual teachers’ school environments promote or inhibit the implementation of pedagogical innovations in cultural minority classrooms. A total of nine teachers and their classes from five public or state secondary schools in the Philippines and Aotearoa New Zealand participated in the study. Data were collected using observations, talanoa, audio-visual recordings, and documents, which consisted of lesson plans, school newsletters, and publications. Data were analysed within and across cases using a thematic approach and a comparative approach in relation to the five standards of effective pedagogy.  The data suggest that there are two aspects to understanding pedagogical innovation in cultural minority classrooms: the tangible aspects or artefacts for learning, and the intangible aspects or appreciative mediation for learning. Artefacts for learning pertain to any human-made objects available in the learning environment such as classrooms, which are essential in engaging student learning. These are concrete manifestations of teachers’ creativity utilised in teaching and learning. Common examples of artefacts for learning used by teachers across all case studies were student modules or kits and teaching instruments such as visual aids, photos, and information and communications technology. Appreciative mediation for learning pertains to the positive and strength-based operations and/or actions, attitudes, behaviours, and outlooks of teachers, which result in student learning. These include genuine appreciation and collaboration with students, teaching initiatives, positive disposition, and self reflection.  Factors that affect the implementation of teachers’ pedagogical innovations are grouped into two: the social support system and the structural regulation of the school system. The social support system identified in the study that promoted teachers’ pedagogical innovation, and are common across all case studies, were family, community, school staff, and students. The structural regulation of the school system was found to hinder teachers’ pedagogical innovation. Examples common across all case studies are lack of and/or limited artefacts for learning, inadequate professional development for teachers, impassive curriculum, and poor student attendance.</p>


2021 ◽  
Author(s):  
◽  
Ivy Samala Abella

<p>This is a multiple case study which investigates teachers’ pedagogical innovations in cultural minority classrooms using Cultural Historical Activity Theory and Appreciative Inquiry as theoretical lens. Pedagogical innovation refers to a new idea or the development of an existing product, process, strategy, or method in teaching and learning that is applied in a specific context with the intention to create added value or the potential to improve student learning. The purpose of the study was to investigate teachers’ pedagogical innovations in cultural minority classrooms; the ways in which teachers mediate the learning of their students through pedagogical innovations in cultural minority classrooms; and how individual teachers’ school environments promote or inhibit the implementation of pedagogical innovations in cultural minority classrooms. A total of nine teachers and their classes from five public or state secondary schools in the Philippines and Aotearoa New Zealand participated in the study. Data were collected using observations, talanoa, audio-visual recordings, and documents, which consisted of lesson plans, school newsletters, and publications. Data were analysed within and across cases using a thematic approach and a comparative approach in relation to the five standards of effective pedagogy.  The data suggest that there are two aspects to understanding pedagogical innovation in cultural minority classrooms: the tangible aspects or artefacts for learning, and the intangible aspects or appreciative mediation for learning. Artefacts for learning pertain to any human-made objects available in the learning environment such as classrooms, which are essential in engaging student learning. These are concrete manifestations of teachers’ creativity utilised in teaching and learning. Common examples of artefacts for learning used by teachers across all case studies were student modules or kits and teaching instruments such as visual aids, photos, and information and communications technology. Appreciative mediation for learning pertains to the positive and strength-based operations and/or actions, attitudes, behaviours, and outlooks of teachers, which result in student learning. These include genuine appreciation and collaboration with students, teaching initiatives, positive disposition, and self reflection.  Factors that affect the implementation of teachers’ pedagogical innovations are grouped into two: the social support system and the structural regulation of the school system. The social support system identified in the study that promoted teachers’ pedagogical innovation, and are common across all case studies, were family, community, school staff, and students. The structural regulation of the school system was found to hinder teachers’ pedagogical innovation. Examples common across all case studies are lack of and/or limited artefacts for learning, inadequate professional development for teachers, impassive curriculum, and poor student attendance.</p>


2021 ◽  
pp. 2106684
Author(s):  
Qun He ◽  
Sicong Qiao ◽  
Yuzhu Zhou ◽  
Robert Vajtai ◽  
Deping Li ◽  
...  

2021 ◽  
pp. 133739
Author(s):  
Lu-Lu Zhang ◽  
Zhao-Yao Chen ◽  
Xin-Yuan Fu ◽  
Bo Yan ◽  
Hua-Chao Tao ◽  
...  

Small Science ◽  
2021 ◽  
pp. 2100061
Author(s):  
Menggang Li ◽  
Zhonghong Xia ◽  
Mingchuan Luo ◽  
Lin He ◽  
Lu Tao ◽  
...  

2021 ◽  
Vol 12 ◽  
Author(s):  
Maria Marti-Marimon ◽  
Nathalie Vialaneix ◽  
Yvette Lahbib-Mansais ◽  
Matthias Zytnicki ◽  
Sylvie Camut ◽  
...  

The spatial organization of the genome in the nucleus plays a crucial role in eukaryotic cell functions, yet little is known about chromatin structure variations during late fetal development in mammals. We performed in situ high-throughput chromosome conformation capture (Hi-C) sequencing of DNA from muscle samples of pig fetuses at two late stages of gestation. Comparative analysis of the resulting Hi-C interaction matrices between both groups showed widespread differences of different types. First, we discovered a complex landscape of stable and group-specific Topologically Associating Domains (TADs). Investigating the nuclear partition of the chromatin into transcriptionally active and inactive compartments, we observed a genome-wide fragmentation of these compartments between 90 and 110 days of gestation. Also, we identified and characterized the distribution of differential cis- and trans-pairwise interactions. In particular, trans-interactions at chromosome extremities revealed a mechanism of telomere clustering further confirmed by 3D Fluorescence in situ Hybridization (FISH). Altogether, we report major variations of the three-dimensional genome conformation during muscle development in pig, involving several levels of chromatin remodeling and structural regulation.


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