8,570 research outputs found
Cryopreservation and oxidative stress in porcine oocytes
No full textSeveral vitrification protocols have been established for porcine oocytes so as to facilitate gene banking of female
germplasm. Although live piglets have been successfully produced from pig oocytes vitrified at the germinal
vesicle (GV) stage, the competence of vitrified oocytes to develop into the blastocyst stage is greatly compromised
following cryopreservation. The focus of this review is to elucidate the impact of cryopreservation on the
redox balance of pig oocytes, making special reference to the relevance of non-enzymatic and enzymatic antioxidant
defences. Besides, the regulation of gene expression in response to oxidative stress is also considered.
Finally, we discuss the effects of supplementing maturation and vitrification media with the exogenous nonenzymatic
antioxidants that have hitherto yielded the most relevant results
The Future of Canadian Climate Policy — with Marc Lee
No full textMarc Lee is a Senior Economist at the Canadian Centre for Policy Alternatives\u27 BC Office. In addition to tracking federal and provincial budgets and economic trends, Marc has published on a range of topics from poverty and inequality to globalization and international trade to public services and regulation. Marc is the Co-Director of the Climate Justice Project, a research partnership with UBC\u27s School of Community and Regional Planning that examines the links between climate change policies and social justice.Resources:Climate Justice Project: www.policyalternatives.ca/projects/cli…tice-projectMarc Lee\u27s Posts on Policy Note: www.policynote.ca/author/marclee/Canadian Centre for Policy Alternatives: www.policyalternatives.ca/Marc\u27s Twitter: twitter.com/MarcLeeCCPA International Panel on Climate Change, 2021 report: www.ipcc.ch/report/ar6/wg1
Seminal extracellular vesicles subsets modulate gene expression in cumulus cells of porcine in vitro matured oocytes
No full textSeminal plasma (SP), a fluid composed mainly by secretions from accessory sex glands, contains a heterogenous population of extracellular vesicles (EVs), involved in several reproductive physiological processes. Seminal plasma has been found to modulate ovary function, in terms of hormone secretion and immune regulation. This study evaluated the potential effect of SP-EV-subsets on the modulation of cumulus-oocyte-complex (COCs) physiology during in vitro maturation (IVM). Two SP-EV-subsets, small-EVs (S-EVs) and large-EVs (L-EVs), were isolated from pig SP by size-exclusion-chromatography. Next, COCs were IVM in the absence (control) or presence of each SP-EV-subset to evaluate their uptake by COCs (PKH67-EVs labelling) and their effect on oocyte and cumulus cells (CCs) (gene expression, and progesterone and estradiol-17β levels). S-EVs and L-EVs were able to bind CCs but not oocytes. Supplementation with L-EVs induced changes (P ≤ 0.05) in the transcript levels of oocyte maturation- (HAS2) and steroidogenesis-related genes (CYP11A1 and HSD3B1) in CCs. No effect on nuclear oocyte maturation and progesterone and estradiol-17β levels was observed when COCs were IVM with any of the two SP-EV-subsets. In conclusion, while SP-EV-subsets can be integrated by CCs during IVM, they do not affect oocyte maturation and only L-EVs are able to modulate CCs function, mainly modifying the expression of steroidogenesis-related genes
Uptake of seminal extracellular vesicles (EVs) subsets by cumulus cells-oocyte complex in pigs
No full textSeminal small extracellular vesicles modulate the expression of steroidogenesis-associated genes in pig cumulus cells
No full textClimate Justice & Inequality: The Future of Canadian Climate Policy — with Marc Lee
No full textMarc Lee is a Senior Economist at the Canadian Centre for Policy Alternatives\u27 BC Office. In addition to tracking federal and provincial budgets and economic trends, Marc has published on a range of topics from poverty and inequality to globalization and international trade to public services and regulation. Marc is the Co-Director of the Climate Justice Project, a research partnership with UBC\u27s School of Community and Regional Planning that examines the links between climate change policies and social justice.Resources: Climate Justice Project: https://www.policyalternatives.ca/projects/climate-justice-projectMarc Lee\u27s Posts on Policy Note: https://www.policynote.ca/author/marclee/Canadian Centre for Policy Alternatives: https://www.policyalternatives.ca/Marc\u27s Twitter: https://twitter.com/MarcLeeCCPA International Panel on Climate Change, 2021 report: https://www.ipcc.ch/report/ar6/wg1
La edad de la inocencia. Marc Recha, Georges Poulet, Mateo Gamón, Martin Scorsese, J.J. Romero Cortés
No full textBanda aparte (1994). La edad de la inocencia. Marc Recha, Georges Poulet, Mateo Gamón, Martin Scorsese, J.J. Romero Cortés. Ediciones de la Mirada. https://riunet.upv.es/handle/10251/42130.Importación Masiva00
UKMARC AMC: Draft Rev 4.0: UK MARC format for archives and manuscripts control (UK MARC AMC)
No full textThis draft is the first attempt to establish a UK MARC specifically for Archives and Manuscripts Control since the British Library indicated that it would countenance such extensions to the national UK MARC format. In order to keep consistency with the general UK MARC format, standard UK MARC subject fields are not included in this document, since they should be taken from the latest version of the UK MARC manual. {A note of them should perhaps be included in UK MARC AMC.} {NB Text in braces is intended to be explanatory material for readers of this draft}. Certain other fields have not been included that might occasionally be used in the cataloguing of archival materials but would generally only be used for such materials in organizations which were combining archive
databases with library databases. This MARC version is intended for use with descriptions of archive or anuscript material that follow, or fit, the traditional style of cataloguing: we assume that these will normally relate
to paper or parchment originals. It is not intended for use with descriptions of other kinds of material. For these, fields may be drawn from the appropriate UK MARC document. MARC versions for use with archives in special formats should be developed, in order to complete the full range of facilities available to archivists and curators
MARC 21 para recursos contínuos
No full textTranslation and adaptation of the MARC 21 Format for Bibliographic Data, and MARC 21 Format for Holdings Data, Network Development and MARC Standards Office, Library of Congress, USA, by Angela Salles. Rio de Janeiro, 2010. 2 v. V.1 MARC 21 format for bibliographic data (updated until October 2010). V.2 MARC 21 format for data collection (Holdings) (updated until October 2008)
...Y comíamos macarrones en un centro de artes. ¿Cómo enseñan los artistas en el proyecto colaborativo de Sojornar?
No full textMàster d'Arts Visuals i Educació: un Enfocament Construccionista, Facultat de Belles Arts, Universitat de Barcelona. Curs: 2023-2024. Tutor: Roda Otero, María[ca] Des d’un interès per analitzar la figura de l’artista-educador i les seves pràctiques en un projecte de col·laboració entre una escola i un centre d’art, em situo en l’estudi del cas de Sojornar. En un context de Gir Educatiu en les Arts, Sojornar reuneix un grup d’alumnes de 4t de primària de l’Escola Drassanes, per habitar el Centre d’Arts Santa Mònica durant una setmana i en el marc d’una exposició temporal. Mitjançant una metodologia narrativa de caràcter reflexiu i dialògic, em centro en quatre escenes significatives que van tenir lloc en el Sojornar de 2024, on analitzo com ensenyen els artistes, per poder localitzar les seves relacions amb la resta dels agents involucrats. Finalment, concloc amb una sèrie d’aportacions de l’estudi.[spa] Desde un interés por analizar la figura del artista-educador y sus praxis en un proyecto de colaboración
entre una escuela y un centro de arte, me sitúo en el caso de estudio de Sojornar. En un contexto de Giro Educativo en las Artes, Sojornar reúne a un grupo de alumnos de 4to primaria de la Escola Drassanes, para habitar el Centre d’Arts Santa Mònica durante una semana y en el marco de una exposición temporal. Mediante una metodología narrativa de carácter reflexivo y dialógico, me centro en cuatro escenas significativas que tuvieron lugar en el Sojornar de 2024, donde analizo cómo enseñan los artistas, para poder localizar sus relaciones con el resto de los agentes involucrados. Finalmente, concluyo con una serie de aportaciones del estudio.[eng] From an interest in analyzing the figure of the artist-educator and their praxis in a collaborative project
between a school and an art center, I focus on the case study of Sojornar. In the context of the Educational Turn in the Arts, this project brings together a group of 4th grade pupils from the Drossiness Primary School to inhabit the Centre d’Arts Santa Mònica for a week and within the framework of a temporary exhibition. Using a narrative methodology of a reflexive and dialogical approach, I focus on four significant scenes that took place in the Sojornar 2024. In which, I analyse the different ways of doing of the artists, to locate their relationships with the rest of the agents involved. Finally, I conclude with a series of contributions of the research
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