3,480 research outputs found
Agapornis: relació entre fertilitat i neixements en els Agapornis lilianae i negrigenis
No full textTreball de recerca realitzat per un alumne d'ensenyament secundari i guardonat amb un Premi CIRIT per fomentar l'esperit científic del Jovent l'any 2009. A partir d’ous exemplars de dues espècies d’agapornis -nigrigenis i lilianae-, es pretén realitzar un estudi comparatiu d’ambdues, tant pel que fa a l’etologia com a la reproducció, als hàbits alimentaris, etc. La idea inicial parteix de la possibilitat d’intercanviar alguns ous de cada espècie per mirar d’esbrinar si els ocells reproductors s’adonen de tal canvi. La hipòtesi inicial del treball considera que els ocells els criaran de la mateixa forma que si es tractés dels seus propis pollets.
Les conclusions, però, han anat més enllà de la formulació de la hipòtesi inicial, de tal manera que, al final, i en forma de diagrama, s’ha pogut parlar de l’eclosió o manca d’eclosió dels ous d’aquesta espècie, tot relacionant temes diversos que van des de la fertilitat a les diferents mides dels ous. A més, l’autor també ha pogut concloure que els Agapornis lilianae són capaços de criar ocells d’una altra espècie (en aquest cas d Agapornis roseicollis) amb tota normalitat.Research project carried out by a pupil of secondary education and rewarded with a Prize CIRIT to foster the scientific spirit of the Youth in year 2009. From exemplary eggs of two species of agapornis -nigrigenis and lilianae-, it is intended to carry out a comparative study of both, regarding the ethology as well as the reproduction, the alimentary habits, etc. The initial idea is the possibility to exchange some eggs of each species to try to find out if the birds notice such change. The initial hypothesis of the work considers that the birds will raise them in the same way that if it was about their own chicks.
The conclusions, however, have gone beyond the formulation of the initial hypothesis, in such a way that it is analised, in form of diagram, the eclosion or lack of eclosion of the eggs of this species, and relating with the fertility and the size of the eggs. Moreover, the author has also been able to conclude that the Agapornis lilianae are capable of breeding birds of another species (in this case d Agapornis roseicollis) with every normality
Creating inclusive classrooms in primary and secondary schools: From noticing to differentiated practices
No full textDifferentiated instruction is advocated as a means to create inclusive classrooms. The hypothesis guiding this study is that teachers' ability to notice inclusive teaching practices and to reason about it are connected to their differentiated practices. Two instruments are adopted to measure this: the e-PIC videography tool, that maps teachers' professional vision, and the DI-Quest, that measures self-reported differentiated practices. Clustering teachers' noticing and reasoning, this study found two groups of teachers. Results reveal that teachers who are more proficient at noticing inclusive practices, also report implementing more differentiated practices, compared to teachers who are less able at noticing them. (C) 2020 Elsevier Ltd. All rights reserved.The adopted e-PIC videography instrument in this study was developed within the Potential project in cooperation with IMEC and the following people: Dr. Karolien Keppens, Iris Roose, Dr. Esther Gheyssens, Dr. Julia Griful-Freixenet, Prof. Dr. Katrien Struyven, Prof. Dr. Piet Van Avermaet, Prof. Dr. Ruben Vanderlinde, Prof. Dr. Els Consuegra, Dr. Wendelien Vantieghem, Kristof Van Damme and Martin Vanbrabant. We would like to thank them for their engagement. In addition, the authors of this study gratefully acknowledge the support of the POTENTIAL research and valorisation project (www.potentialproject.be) funded by the Flanders Innovation & Entrepreneurship (VLAIO).Gheyssens, E (corresponding author), Vrije Univ Brussel, Pl Laan 2, B-1050 Brussels, Belgium.
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Author profiling resources
No full textEl zip conté tots els recursos que s'han generat durant el desenvolupament de la tesi. Per una banda, hi ha el codi, amb el qual es poden extreure el conjunt de features tal i com es descriu a la tesi, per altre banda, hi ha també tots els datasets que s'han creat i que s'utilitzen per a tots els experiments. Utilitzant el codi, les eines externes corresponents i els datasets, es poden emular tots els experiments descrits.The zip file contains every resource that has been generated during the development of the thesis. One of the folders contains the code that is used to extract the described feature set, the other one contains every dataset that has been compiled and used in every experiment. Using the code, the external tools mentioned in the experiments and the corpora, it is possible to repeat every experiment described in the thesis
Management of employee wellness in South Africa: Employer, service provider and union perspectives
No full textOrientation: This article focuses on how South African organisations manage their employees’ wellness through their Employee Wellness Programmes (EWPs).
Research purpose: The objective of this research is to describe employee wellness in South Africa by investigating the types, foci and perceived success of EWPs.
Motivation for the study: Despite the growing awareness of the importance of EWPs in South Africa, the nature, content, context, participants, role-players and anticipated benefits as well as the possible drawbacks of these programmes in the South African context are unclear.
Research design, approach and method: The researchers used a cross-sectional design. The first author developed the Employee Wellness Survey, consisting of quantitative and qualitative questions, to collect data from 16 organisations, four service providers and seven labour unions in South Africa.
Main findings: The results showed that organisations, service providers and labour unions define employee wellness differently and that these role players give different reasons for introducing EWPs. Almost half of the participating organisations have no baseline measurement with which to compare the effectiveness of their EWPs. Generally, all the organisations present the results of their programmes reasonably. However, the programmes involve little overall expenditure to the organisations.
Practical/managerial implications: Organisations should monitor the state of their employees’ wellness in order to manage it effectively. This will only become possible when information about employee wellness improves.
Contribution/value-add: This study provides new information about the nature, content, context, participants, role-players, anticipated benefits and possible drawbacks of EWPs in the South-African context
L'ampolla sostenible
No full textTreball de recerca realitzat per un alumne d'ensenyament secundari i guardonat amb un Premi CIRIT per fomentar l'esperit científic del Jovent l'any 2009. El treball consisteix en una recerca per aconseguir dissenyar l'ampolla més sostenible i ecoeficient possible.
A partir d'una prèvia investigació sobre informació bàsica pel disseny, s'han anat augmentant els coneixements sobre envasos plàstics gràcies a consells com els d'un dissenyador d'envasos i d'una empresa que treballa amb plàstics, als resultats d'una enquesta als consumidors d'ampolles i a les conclusions d'un estudi de mercat sobre les ampolles de plàstic.
L'ampolla sostenible dissenyada és el resultat d'aquest intens treball, que s'ha basat sobretot en la imaginació i en la creació.Research project carried out by a pupil of secondary education and rewarded with a Prize CIRIT to foster the scientific spirit of the Youth in year 2009. This essay shows a research study where author wants to design a bottle as much sustainable and eco-efficient as possible.
Beginning with a research about basic design information, author knowledge of plastic containers improves due to different reasons: advices received from a container designer, visit to a company working with plastic and survey results to citizens for knowing bottle consumption of a market study about plastic containers.
The author proposes a sustainable bottle design as a result of a hard work mainly based on imagination and creativity
Autoria literària i gènere: el cas de Clarice Lispector
No full textEl projecte de recerca que s’ha dut a terme els darrers tres anys consisteix en una reflexió teòrica al voltant de l’autoria literària, fent especial èmfasi en les implicacions de gènere dels processos de legitimació literària i les posicions autorials que se’n deriven. Clarice Lispector en tant que nom d’autor sota el qual s’agrupa no només un corpus literari sinó tots aquells textos que construeixen un cos d’autora, constitueix l’objecte d’anàlisi a partir del qual es posa en joc la reflexió teòrica esmentada. Per a dur-lo a terme, es realitza un anàlisi de la producció autogràfica de l'autora i de tots aquells discursos que contribueixen a la construció del seu personatge: els discurso acadèmics, biogràfics i mediàtics; els materials fotogràfics i audiovisuals; les recreacions del personatge des de diversos llenguatges artístics (literari, teatral i cinematogràfic), etc.This research project is a theoretical reflection about literary authorship, with special emphasis on the gender implications of the literary positions and the processes of legitimation in the literary field. Clarice Lispector as a name of author which grouped not only literary texts but also these texts that build the body of the author is the object of our analysis. To carry it out, we analyze the auto(bio)graphic production of Clarice Lispector and those discourses that contribute to the construction of her character: the academic, biographical and media discourses; photographic and audiovisual materials; recreations of the character from different artistic languages (literary, theatrical and film), et
Exploiting Klebsiella pneumoniae genomics for its significance in One Health
No full textThis thesis explores the genomics and epidemiological dynamics of Klebsiella variicola (K. var) and Klebsiella pneumoniae (K. pne), focusing on their adaptation to human hosts, resistance profiles, and virulence traits.
We begin by investigating the population structure and niche adaptation of K. var through a comprehensive genomic dataset. Our analysis reveals how this pathogen, traditionally associated with plants, has transitioned into the human niche through the acquisition of genes either due to antibiotic overuse or proximity to K. pne, highlighting its genetic variability and potential public health threat. To understand its behaviour in clinical infections, we conducted a case study in Scotland involving 119 clinical strains collected in 2023. This study identified multidrug-resistant and virulent strains carrying the yersiniabactin gene, underscoring the resistance and virulence of K. var in Scotland and emphasizing the need for ongoing surveillance.
We next shifted our focus to K. pne, a close relative of K. var, examining epidemic clones such as ST11, ST15, and ST258. We analysed their global dissemination and resistance/virulence profiles, with particular attention to ST11, which has caused significant outbreaks in China. Our genomic analysis revealed distinct evolutionary paths within the ST11 lineage, particularly in the Asian cluster, where resistance to extended-spectrum-β-lactams and virulence traits, such as aerobactin and yersiniabactin, were prevalent. Furthermore, we identified key resistance mechanisms linked to fluoroquinolone and colistin resistance, particularly in a hypervirulent clonal expansion cluster of ST11.
Overall, this thesis advances the understanding of how these Klebsiella species evolve, adapt, and contribute to significant public health challenges due to their resistance and virulence traits. These findings underscore the need for continued surveillance and control measures to mitigate the risks posed by these emerging pathogens under a One Health framework
Estudi de la regulació del procés de formació de la fusta per a l’obtenció de biomassa i biocombustibles: el paper clau de dos factors de transcripció MYB amb funcions antagòniques
No full textEstudi realitzat a partir d’una estada al Laboratoire de Recherche en Sciences Végétales - Université Toulouse III, entre 2010 i 2012. Durant l’estada s’han pogut complir els principals objectius del projecte de recerca sobre la regulació de la formació de les parets secundàries en un arbre d’importància econòmica, l’eucaliptus. S’ha caracteritzat dos factors de transcripció, EgMYB1 i 2, comparant el seu patró d’expressió espaciotemporal a nivell cel•lular i estudiant l’efecte fenotípic de la pèrdua de funció d’aquests gens. A més, s’ha construït una llibreria de xilema d’eucaliptus adaptada a la tècnica dels dos híbrids i s’ha descobert alguns del partners proteics d’EgMYB1 i 2, els quals estic actualment validant per mètodes alternatius. Augmentant els objectius inicials de la sol•licitud, he aprofitat la recent publicació del genoma de l’Eucalyptus grandis per identificar i caracteritzar el patró d’expressió de vàries famílies gèniques.Report for the scientific sojourn carried out at the al Laboratoire de Recherche en Sciences Végétales - Université Toulouse III, from 2010 to 2012. During the research period it has been accomplished the main objectives of my research project dedicated to the regulation of the secondary cell wall formation in a tree of economic importance, eucalyptus. It have been characterized two transcription factors, EgMYB1 & 2, comparing their spatiotemporal expression pattern at tissular and cellular level and studying the phenotypic effect of their loss-of-function in transgenic lines. It has been also constructed a eucalyptus xylem yeast-two-hybrid library and discovered some candidate protein partners for each of the two genes, beeing currently validated by alternative methods. Enlarging the objectives of the initial grant proposal, the recently released Eucalyptus grandis genome sequence it has been profited to identify and characterize the expression of several whole gene families. Four scientific papers, one as first author and two as a second author, are ready to be submitte
La literatura popular del nord del Marroc
No full textTreball de recerca realitzat per una alumna d'ensenyament secundari i guardonat amb un Premi CIRIT per fomentar l'esperit cientí¬fic del Jovent l'any 2009. L’objectiu d’aquest treball és fer un recull de literatura de transmissió oral i reunir d’aquesta manera les històries, els contes, les llegendes. etc. que els avis de l’autora li contaven. Un dels objectius era que servís alhora de mitjà de coneixement per a tots els nens i nenes que, tenint un origen marroquí o berber, han nascut a Catalunya, per la qual cosa no han tingut accés a aquest tipus de literatura. Ja que, per una banda han estat sempre escolaritzats en català, i per l altra la font de coneixement que suposen els avis s ha quedat al Marroc. Aquests nens tenen poc coneixement sobre la seva cultura d’origen i més si aquesta gaudeix de poc valor.Work of research carried out by a pupil of secondary education and rewarded with a Prize CIRIT to foster the spirit científic of the Youth in year 2009. The objective of this work is to make a collection of oral transmission literature and to gather in this way the stories and the legends that the grandparents of the author told her. One of the objectives was that it served at the same time as means of knowledge for all children and girls that, having a Moroccan or Berber origin, they have been born in Catalonia, for which they have not had access to this type of literature., because they have always been schooled in Catalan, and the source of knowledge that the grandparents supposes has remained in Morocco. These children have little knowledge about their culture of origin and more if this enjoys little value
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