554 research outputs found
The great crested grebe (Podiceps cristatus)
No full textАвтор даёт художественную интерпретацию мира чомги - культовой птицы «Полимусейона».The author gives an artistic interpretation of the great crested grebe, the world-iconic bird of “Polimusejon”
Insight into the early steps of root hair formation revealed by the procuste1 cellulose synthase mutant of Arabidopsis thaliana
No full textBackground: formation of plant root hairs originating from epidermal cells involves selection of a polar initiation site and production of an initial hair bulge which requires local cell wall loosening. In Arabidopsis the polar initiation site is located towards the basal end of epidermal cells. However little is currently understood about the mechanism for the selection of the hair initiation site or the mechanism by which localised hair outgrowth is achieved. The Arabidopsis procuste1 (prc1-1) cellulose synthase mutant was studied in order to investigate the role of the cell wall loosening during the early stages of hair formation. Results: the prc1-1 mutant exhibits uncontrolled, preferential bulging of trichoblast cells coupled with mislocalised hair positioning. Combining the prc1-1 mutant with root hair defective6-1 (rhd6-1), which on its own is almost completely devoid of root hairs results in a significant restoration of root hair formation. The pEXPANSIN7::GFP (pEXP7::GFP) marker which is specifically expressed in trichoblast cell files of wild-type roots, is absent in the rhd6-1 mutant. However, pEXP7::GFP expression in the rhd6-1/prc1-1 double mutant is restored in a subset of epidermal cells which have either formed a root hair or exhibit a bulged phenotype consistent with a function for EXP7 during the early stages of hair formation. Conclusion: these results show that RHD6 acts upstream of the normal cell wall loosening event which involves EXP7 expression and that in the absence of a functional RHD6 the loosening and accompanying EXP7 expression is blocked. In the prc1-1 mutant background, the requirement for RHD6 during hair initiation is reduced which may result from a weaker cell wall structure mimicking the cell wall loosening events during hair formation
Grebe syndrome: clinical and molecular study
No full textA sindrome de Grebe e uma Displasia Acromesomelica de etiologia autossomica recessiva. Foram estudados tres pacientes com esta sindrome. Apresentavam o fenotipo classico caracterizado por esqueleto axial e cranio normais, e extremidades encurtadas e deformadas num gradiente proximaldistal. Umero e femur normais em dois pacientes e femur deformado em um deles. Radio, ulna, tibia fibula encurtados e deformados em todos. Ossos do carpo e tarso fundidos em um paciente e hipoplasicos nos outros dois. Os pacientes apresentavam agenesias de metacarpos e metatarsos Falanges proximais e mediais dos dedos das maos e pes geralmente ausentes enquanto que a maioria das falanges distais estavam presentes. Polidactilia pos-axial foi encontrada em dois pacientes. Ampla revisao bibliografica permitiu a discussao do grupo das Displasias Acromesomelicas, particularizando a Sindrome de Grebe em relacao aos diagnosticos diferenciais principais: as sindromes de Hunter &Thompson e Maroteaux. Dois pacientes foram submetidos a cirurgia de Grucca com intuito de reabilitacao. Nos tres pacientes o estudo molecular identificou a mutacao no gene que codifica a Proteina Derivada de Cartilagem do tipo 1BV UNIFESP: Teses e dissertaçõe
Três contos de Thomas Hardy: tradução comentada de cadeias de significantes, hipotipose e dialeto
No full textTese (doutorado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão. Programa de Pós-Graduação em Estudos da TraduçãoEsta tese se insere na área de tradução comentada de textos literários e se baseia na minha tradução para o português dos contos "The withered arm", "Barbara of the House of Grebe" e "An imaginative woman", do escritor inglês Thomas Hardy (1840-1928), tendo como intuito propor uma discussão a respeito de algumas questões de tradução de prosa, a saber, a cadeia de significantes, hipotipose e dialeto. A tradução é precedida por um estudo prévio sobre o autor e sobre os aspectos mais importantes de sua obra e por uma apreciação da ficção de Hardy traduzida no Brasil. Em seguida, apresento os contos traduzidos e os respectivos comentários da traduçãoThe area of research of this thesis is literary translation with commentary and it is based on my own translation into Portuguese of the short stories #The withered arm#, #Bárbara of the House of Grebe#, and #An imaginative woman# by Thomas Hardy (1840-1928). In the commentaries, I draw attention to some matters in prose translation, such as underlying networks of signification, hypotyposis, and dialect. My translation is preceded by a study on the writer and on the most important aspects of his work, and by an analysis of Hardy#s fictional work translated into Brazilian Portuguese. Finally, I present the translation of the short stories and the commentaries on the translatio
Civil society leadership in the struggle for AIDS treatment in South Africa and Uganda
No full textIncludes abstract.Includes bibliographical references.This thesis is an attempt to theorise and operationalise empirically the notion of ‘civil society leadership’ in Sub-Saharan Africa. ‘AIDS leadership,’ which is associated with the intergovernmental institutions charged with coordinating the global response to HIV/AIDS, is both under-theorised and highly context-specific. In this study I therefore opt for an inclusive framework that draws on a range of approaches, including the literature on ‘leadership’, institutions, social movements and the ‘network’ perspective on civil society mobilisation. This framework is employed in rich and detailed empirical descriptions (‘thick description’) of civil society mobilisation around AIDS, including contentious AIDS activism, in the key case studies of South Africa and Uganda. South Africa and Uganda are widely considered key examples of poor and good leadership (from national political leaders) respectively, while the Treatment Action Campaign (TAC) and The AIDS Support Organisation (TASO) are both seen as highly effective civil society movements. These descriptions emphasise ‘transnational networks of influence’ in which civil society leaders participated (and at times actively constructed) in order to mobilise both symbolic and material resources aimed at exerting influence at the transnational, national and local levels
\u3ci\u3eDiving Birds of North America\u3c/i\u3e: Color Plates
No full text1. Arctic loon, adult in breeding plumage. Photo by author. 2. Red-throated loon, nesting adult. Photo by Kenneth W. Fink. 3. Yellow-billed loon, adult in breeding plumage. Photo by Kenneth W. Fink. 4. Common loon, nesting adult. Photo by Kenneth W. Fink. 5. Pied-billed grebe, adult in breeding plumage. Photo by author. 6. Least grebe, adult and young. Painting by Mark E. Marcuson. 7. Red-necked grebe, nesting adult. Photo by author. 8. Eared grebe, adults with young. Photo by Kenneth W. Fink. 9. Horned grebe, nesting adult. Photo by Kenneth W. Fink. 10. Western grebe, adult with young. Photo by Gary Nuechterlein. 11. Downy young of grebes, including light (top left) and dark phases (top right) of western, black-necked (upper left), horned (middle left), least (lower left), red-necked (middle right), and pied-billed (lower right). Painting by Jon Fjeldså. 12. Dovekie, adult in breeding plumage. Photo by Frank S. Todd. 13. Razorbill, adult in breeding plumage. Photo by author. 14. Common murre, adult in winter plumage. Photo by author. 15. Thick-billed murre, adult in breeding plumage. Photo by author. 16. Black guillemot, adult in breeding plumage. Photo by Frank S. Todd. 17. Pigeon guillemot, breeding colony. Photo by Frank S. Todd. 18. Pigeon guillemots, immature plumage (left), rhinoceros auklet (middle), and common murre, breeding plumage (right). Photo by author. 19. Marbled murrelet, incubating adult. Photo by Stuart Johnson. 20. Kittlitz murrelet, incubating adult. Photo by David G. Roseneau. 21. Cassin auklet, immature plumage. Photo by author. 22. Parakeet auklet, adults in breeding plumage. Photo by author. 23. Crested auklet, adults in breeding plumage. Photo by author. 24. Crested and least auklets, adults in breeding plumage. Photo by author. 25. Least auklet, juvenal plumage. Photo by Frank S. Todd. 26. Whiskered auklet, juvenal plumage. Photo by C. Fred Zeillemaker. 27. Whiskered, least, and crested auklets, breeding adults. Painting by Mark C. Marcuson. 28. Rhinoceros auklet, adult in breeding plumage. Photo by Frank S. Todd. 29. Tufted puffin, adults in breeding plumage. Photo by author. 30. Atlantic puffin, breeding colony. Photo by Frank S. Todd. 31. Atlantic puffin, adult in breeding plumage. Photo by Frank S. Todd. 32. Horned puffin adults in breeding plumage. Photo by author
Grebes (Podicipedidae): distribution and number during the breeding season in Saaremaa
No full textBakalaureusetöö
Loodusturismi õppekavalPütlaste (tuttpütt, hallpõsk-pütt, sarvikpütt, mustkael-pütt ja väikepütt) arvukus Saaremaal
on seni olnud täpsemalt teadmata ning levikut eriti uuritud ei ole.
Töö eesmärgiks on võtta vaatluse alla kõik Saaremaal esinevad pütiliigid ning koguda
täpsemaid andmed nende pesitsusaegse leviku ja arvukuse kohta Saaremaal perioodil
2015-2021.
Andmeid koguti varasemate seirete aruannetest ning välitöödel vaatluseid ja seireid läbi
viies. Andmete analüüsimisel hinnati pütlaste pesitsusaegset levikut Saaremaal. Andmeid
analüüsides saadi 2015.-2021. aasta seisuga pütlaste pesitsusaegseks arvukuseks
Saaremaal järgmised tulemused: tuttpütti 1847 paari, hallpõsk-pütti 51 paari, sarvikpütti
66 paari, väikepütti kaks paari ning mustkael-pütti kohta andmed puudusid. Töö autor
hindab tegelikku tuttpüti arvukust 1800-2000 paarini, hallpõsk-püti ja sarvikpüti tegelikku
arvukust 60-70 paarini ning väikepüti tegelikku arvukust 5-10 paarini.
Tulemustest selgus, et pütlaste arvukust on varasemalt hinnatud tegelikkusest väiksemaks,
kuna tulemused olid enamike liikide puhul oodatust suuremad. Viimast tuleb arvestada
järgmisel ametlikul pütlaste arvukuse hindamisel Eestis. Töö tulemused saab võtta aluseks
pütlaste edasisel uurimisel ning loendusmetoodika täiendamisel.The number and distribution of Grebes (Great Crested Grebe, Red-necked Grebe, Horned
Grebe, Black-necked Grebe and Little Grebe) in Saaremaa has not been much studied in
detail.
The aim of the study was to collect more detailed data on Grebe’s distribution and number
during the breeding season in Saaremaa in the period 2015-2021.
Data was collected from previous monitoring reports and during fieldwork. Based on the
data was estimated the number of Grebes during the breeding season in Saaremaa.
Analysing data from period 2015-2021 the results showed that in total there were 1847
pairs of Great Crested Grebe, 51 pairs of Red-necked Grebe, 66 pairs of Horned Grebe,
two pairs of Little Grebe and zero pairs of Black-necked Grebe during the breeding season
in Saaremaa. The author estimates the actual number of Great Crested Grebe to 1800-2000
pairs, the actual number of Red-necked Grebe and Horned Grebe to 60-70 pairs, and the
actual number of Little Grebe to 5-10 pairs.
The results showed that the numbers of Grebes were previously estimated to be lower than
they were, as the results were higher than expected. The results must be considered
estimating the next official number of Grebes in Estonia. The results also can be used as
a basis for further research of Grebes and improvement of methodology of monitoring
Grebes
European perspectives on student mobility and competencies in tertiary education: What we have learned in the past 20 years
No full textThe author aims to examine the literature on student mobility and competencies in tertiary education with a focus on Europe and analyse the impact of international short-term student mobility on the acquisition of competencies for employability in the 21st-century labour market. The article focuses on the Erasmus program and university education. It examines the relationship between short-term student mobility experiences, the development of soft skills, and their relevance to future employment, providing valuable insights for educational institutions and policymakers. The article highlights the importance of intercultural competencies, collaboration, communication, problem-solving, and critical thinking skills in preparing students for the evolving demands of the workforce. It also emphasises the need for curriculum adaptations and closer cooperation between tertiary-level educational institutions and industry to bridge the skills gap and enhance graduates' employability. The author aims to provide a more comprehensive and in-depth understanding of the relationship between short-term student mobility, competencies, and future employability
Toward an understanding of student Erasmus+ traineeships of Prague University of Economics and Business
No full textThe author aims to provide a basic analysis in the form of a comprehensive overview, map indicators, motivational factors, and benefits of traineeships of the Prague University of Economics and Business (hereafter referred to as VéSE) students who completed traineeships in 2014-2019 and were financially supported by the Erasmus+ programme. Among the student's obligations to provide this financial support is their final report from the mobility, completed in the Mobility Tool of the European Commission. As the author has access to this database and the final reports as part of her work at VéSE, it is this database of completed questionnaires that provides an overview of students' motivation for traineeships abroad and their contribution in terms of personal and professional
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