Search results for "recte"
showing 10 items of 463 documents
Teaching process writing in an online environment
2015
This reflective practice paper offers some insights into teaching an interdisciplinary academic writing course aimed at promoting process writing. The study reflects on students’ acquisition of writing skills and the teacher’s support practices in a digital writing environment. It presents writers’ experiences related to various stages of process writing, their growing awareness of becoming good writers but also the constant struggle with common writing problems. Preconceived attitudes towards the process of writing provide further obstacles for students to overcome in an interdisciplinary and intercultural learning environment. A writer often overcomes the barriers to effective writing by …
Case-based portraits of contrasting micro-interaction processes during online assessment of collaborative problem solving
2017
This study recognizes the role and the quality of social aspects in collaborative problem solving (CPS) processes and outcomes. The aim of this study, relying on multiple data and phases of analysis, is to explore and visualise, through contrasting case-based portraits, how micro-interaction processes at pair level evolve during CPS assessments in an online environment. The assessment is designed for a student pair in the STEM domain. The results show that in despite students’ similar CPS performance scores, variations in micro-interactions occurred across pairs. It is expected that studying these patterns at pair level may provide new insights into CPS processes and so to support acquiring…
Child-Centered and Teacher-Directed Practices in Two Different Countries: A Descriptive Case Study in Finnish and Japanese Grade 1 Classrooms
2023
This descriptive case study examined how teaching practices were evidenced in Grade 1 classrooms in two different cultural and educational contexts, Finland and Japan. Teachers’ teaching practices were video-recorded in 53 classrooms in Finland and six classrooms in Japan and rated with the Early Childhood Classroom Observation Measure by trained investigators. Four Finnish teachers and two Japanese teachers having the highest scores in either child-centered or teacher-directed practices were selected for a descriptive case study to take a closer look at how teaching practices in terms of management, climate, and instruction are evidenced in authentic classroom situations. The analysis reve…
Mācību līdzekļu izstrāde dizaina procesa apguvei un pašvadītas mācīšanās attīstīšanai dizaina un tehnoloģiju priekšmetā
2021
Darba autores diplomdarbā “Mācību līdzekļu izstrāde dizaina procesa apguvei un pašvadītas mācīšanās attīstīšanai dizaina un tehnoloģiju priekšmetā” izstrādājušas dizaina domāšanas un dizaina apguves mācību materiālus, kas veicina skolēnu pašvadītu mācīšanos. Mācību materiālu izstrāde balstīta uz veiktās literatūras analīzi, apskatu un izstrādāto empīrisko pētījumu. Teorētiskās daļas pirmajā nodaļā apskatīta uz mācīšanos orientēta dizaina domāšanas pieeja, dizaina domāšanas metodes un dizaina procesa posmi, to apgūšana. Teorētiskās daļas otrajā nodaļā apskatīta pašvadīta mācīšanās un pašvadītas mācīšanās metodes, to apgūšana. Empīriskajā pētījuma daļā tika izmantotas divas pētījuma metodes: …
School principals’ point of view on pupils’ participation
2021
La participación es un derecho que los niños y niñas deben tener la oportunidad de ejercer y la escuela es un escenario idóneo para que el alumnado pueda hacer oír su voz exponiendo ideas, tomando decisiones y formulando propuestas. Con el objetivo de detectar las opciones del alumnado de participar en el centro y apuntar vías para maximizarlas efectuamos un estudio a partir de un cuestionario elaborado ad hoc dirigido a todos y todas los directores y directoras de escuelas de Cataluña. En concreto, participaron 684 y los resultados indican que los niños y las niñas no solo opinan en clase, sino que toman decisiones cuando trabajan en grupo, en relación con la convivencia o votando sus prop…
Invisible pollution : emerging marine pollutants
2021
Since the start of the Anthropocene, the planet has been threatened by a number of risks associated with human activity. Among them, chemical pollution is posing conceptual and technical challenges that are particularly difficult to characterise on a global scale. We must ask ourselves, what is a pollutant? What properties are relevant in their definition? Studies on the abundance, persistence, mobility in the environment, and bioaccumulation potential of the chemical compounds we use every day are changing the paradigm of what we consider pollutants. Thus, compounds that do not cause acute toxicity can still be dangerous for the ecosystem when they continually reach the environment, exist …
De novo CCND2 mutations leading to stabilization of cyclin D2 cause megalencephaly-polymicrogyria-polydactyly-hydrocephalus syndrome
2014
Activating mutations in genes encoding phosphatidylinositol 3-kinase (PI3K)-AKT pathway components cause megalencephaly-polymicrogyria-polydactyly-hydrocephalus syndrome (MPPH, OMIM 603387)(1-3). Here we report that individuals with MPPH lacking upstream PI3K-AKT pathway mutations carry de novo mutations in CCND2 (encoding cyclin D2) that are clustered around a residue that can be phosphorylated by glycogen synthase kinase 313 (GSK-3 beta)(4). Mutant CCND2 was resistant to proteasomal degradation in vitro compared to wild-type CCND2. The PI3K-AKT pathway modulates GSK-3 beta activity(4), and cells from individuals with PIK3CA, PIK3R2 or AKT3 mutations showed similar CCND2 accumulation. CCND…
A mutation in the second intracellular loop of the pituitary adenylate cyclase activating polypeptide type I receptor confers constitutive receptor a…
2000
AbstractThe pituitary adenylate cyclase activating polypeptide (PACAP) type I receptor belongs to the glucagon/secretin/vasoactive intestinal polypeptide (VIP) receptor family. We mutated and deleted an amino acid residue (E261) which is located within the second intracellular loop of the rat PACAP type I receptor and which is highly conserved among the receptor family. The wild-type receptor and the mutant receptors were efficiently expressed at the surface of COS-7 cells at nearly the same level and revealed the same high affinity for the agonist PACAP-27. The cAMP contents of COS cells transfected with the E261A, E261Q, and the deletion mutant receptor were 4.6-, 5.7-, and 6.7-fold highe…
Extensive nuclear gyration and pervasive non-genic transcription during primordial germ cell development in zebrafish.
2020
ABSTRACT Primordial germ cells (PGCs) are the precursors of germ cells, which migrate to the genital ridge during early development. Relatively little is known about PGCs after their migration. We studied this post-migratory stage using microscopy and sequencing techniques, and found that many PGC-specific genes, including genes known to induce PGC fate in the mouse, are only activated several days after migration. At this same time point, PGC nuclei become extremely gyrated, displaying general broad opening of chromatin and high levels of intergenic transcription. This is accompanied by changes in nuage morphology, expression of large loci (PGC-expressed non-coding RNA loci, PERLs) that ar…
Optimal matching between optical rectennas and harvester circuits
2017
This paper deals with optimal coupling issues between rectennas and harvesting circuits. An optical rectenna consists of a nanoantenna usually coupled with an ultra-high speed rectifier. These devices aim to receive and convert solar and thermal radiation in a DC voltage, while a harvester circuit provides the energy to be stored. The rectenna impedance is influenced both by its structure and by the rectifying diode, the harvester circuit impedance has to be matched to optimize the power transfer. The purpose of this contribution is to discuss the best impedance conditions by taking into account the constraints that are due to the individual devices the conversion system consist of. Finally…