26 research outputs found
Connections between climate, food limitation, and carbon cycling in abyssal sediment communities
No full textDiverse faunal groups inhabit deep-sea sediments over much of Earth's surface, but our understanding of how interannual-scale climate variation alters sediment community components and biogeochemical processes remains limited. The vast majority of deep-sea communities depend on a particulate organic carbon food supply that sinks from photosynthetically active surface waters. Variations in food supply depend, in part, on surface climate conditions. Proposed ocean iron fertilization efforts are also intended to alter surface production and carbon export from surface waters. Understanding the ecology of the abyssal sediment community and constituent metazoan macrofauna is important because they influence carbon and nutrient cycle processes at the seafloor through remineralization, bioturbation, and burial of the sunken material. Results from a 10-year study in the abyssal NE Pacific found that climate-driven variations in food availability were linked to total metazoan macrofauna abundance, phyla composition, rank-abundance distributions, and remineralization over seasonal and interannual scales. The long-term analysis suggests that broad biogeographic patterns in deep-sea macrofauna community structure can change over contemporary timescales with changes in surface ocean conditions and provides significant evidence that sediment community parameters can be estimated from atmospheric and upper-ocean conditions. These apparent links between climate, the upper ocean, and deep-sea biogeochemistry need to be considered in determining the long-term carbon storage capacity of the ocean
FIG. 3. — Tergivelum baldwinae n. gen., n in A new deep-sea species of epibenthic acorn worm (Hemichordata, Enteropneusta)
No full textFIG. 3. — Tergivelum baldwinae n. gen., n. sp. in approximate dorsal view: A, surface details; B, locations of major nerves and muscles associated with proboscis and collar. Abbreviations for structural features: see text.Published as part of Holland, Nicholas D., Jones, William J., Ellena, Jacob, Ruhl, Henry A. & Smith Jr, Kenneth L., 2009, A new deep-sea species of epibenthic acorn worm (Hemichordata, Enteropneusta), pp. 333-346 in Zoosystema 31 (2) on page 339, DOI: 10.5252/z2009n2a6, http://zenodo.org/record/539594
Seabird aggregation around free-drifting icebergs in the northwest Weddell and Scotia Seas
No full textSeabird abundances and distributions can be influenced by seasonal variations in surface productivity, winds, and other environmental factors. Recently evidence emerged that free-drifting icebergs were hotspots of biogeochemical and ecological activity. They also represent physical habitat structure both above and below the sea surface. Here we found seabird abundances that were 2 to 6 times greater within about one-half km of free drifting icebergs than the area between about one-half and one km from the iceberg edge. Aggregation was measured by surveys with an experimental design for determining potential local impacts of free-drifting icebergs on seabird density. Seabird surveys were conducted during three cruises in the Weddell Sea from 4 to 20 December 2005, 11 to 25 June 2008, and 21 March to 2 April 2009. Visual surveys were done on the vessel bridge typically for periods of five minutes facing the port or starboard side. Differences in species composition were also linked to distance from the iceberg edge for the most sampled icebergs with Daption capense exhibiting change in relative abundance. On a local scale, environmental factors such as surface productivity, air temperature, and winds were not consistently related to seabird distributions and community dynamics. The results suggest that climatically-driven variations in iceberg abundance would influence local seabird distributions with unknown impacts on regional abundances and species composition
A new deep-sea species of epibenthic acorn worm (Hemichordata, Enteropneusta)
No full textIndividuals of an enteropneust, Tergivelum baldwinae n. gen., n. sp. were videotaped at a depth of about 4 km in the eastern Pacific and collected by a remotely operated vehicle. The living worms range in length from 9 to 28 cm and are dark brown anteriorly and beige posteriorly. The proboscis is shaped like a shallow dome, indented on either side by a laterodorsal fossa housing a prominent proboscis nerve. The collar comprises a thin transverse crest dorsally and two laterally projecting lips on either side of the mouth ventrally. The mouth is oriented parallel to the substratum and is flanked by large left and right buccal muscles (contrasting with the rudimentary musculature elsewhere in the body). The respiratory pharynx of the trunk extends far anteriorly so that much of it lies dorsal to the mouth opening. The gill bars are not joined by synapticles. The laterodorsal body wall at the anterior extremity of the trunk
extends as two conspicuous flaps (back veils) that run posteriorly as unattached coverings over the anterior 30-50% of the trunk. On either side of the midline, the body wall of the trunk is extended as a narrow lateroventral fold. Within the trunk runs the intestine, which lacks hepatic sacculations and opens at an
anus at the posterior end of the body. Frame analysis of videotapes suggests that the worm can secrete a mass of mucus around the body to facilitate demersal drifting from one epibenthic foraging site to the next. We include a preliminary phylogenetic analysis based on rDNA sequences from T. baldwinae n. gen., n. sp. and additional deep-sea enteropneusts not yet formally described taxonomically (sequence data place them unexpectedly close to ptychoderids). Until more is known about the group as a whole, it is prudent to leave family level classification of T. baldwinae n. gen., n. sp. as incertae sedis
Anxiety Of Alexandra Maria Ellena Delgado In Stuart Gillard’s The Cutting Edge: A Psychoanalytic Approach
No full textThe major problem of this study is how anxiety reflected in the major character’s personality. The aim of this study is to analyze Stuart Gillard’s The Cutting Edge the structural elements and the development of personality of the major character based on Psychoanalytic Approach. This study focuses on major character, namely Alexandra Maria Ellena Delgado. The benefit of this research is to give addition all information to be used by other literature researchers who are interested in analyzing this movie. This study uses two data source, namely primary and secondary data source. The primary data source is the play script itself, while the secondary data are taken from some information needed.The method of data collection is qualitative method. Based on the analysis, the study of this research comes from
the major character problem. It purposes to analyze the movie using individual psychologycal perspective. The steps to conduct this research are (1) determining the type of the study, (2) determining the object of the study, (3) determining the data and data sources, (4) determining the technique of data collection, and (5) determining technique of data analysis. The result of the study found that there is a relationship between The Cuttingedge movie and psychoanalytic approach, first on the structural element of the movie; where the message to The Cuttingedge movie shows that Alexandra Maria Ellena Delgado as the major character that she want to be a beautiful ice skater. The point of view is, the director wants to show the struggle of life of Delgado’s. The theme of the movie is the basic idea of story in which the author portrays through conflicts of characters with other character or with life events. The anxiety of Alexandra related with psychoanalytic approach is that the doubt, fear, and worried of Alexandra makes her brave to take the second chance, and make her dream
comes true namely to be a beautiful ice skater
Commented translation: Le Parfum (Ellena, Jean-Claude. Que-sais-je. PUF. Paris: 2021, p. 49-71)
No full textThe bachelor thesis is divided into two parts. The first part introduces the translation of chosen chapters of the book Le Parfum by the French author Jean-Claude Ellena, famous creator of parfumes. The translated parts deal with the process of creating a parfum and working with aroma substances. The second part comprises the translation commentary which consists of the translation analysis of the source text by translatologist Christiane Nord, the method of translation, the list of translation problems and their solutions. The aim of the thesis is to elaborate the functionally equivalent and to focus on the translation commentary
Commented translation: Le Parfum (Ellena, Jean-Claude. Que-sais-je. PUF. Paris: 2021, p. 49-71)
No full textThe bachelor thesis is divided into two parts. The first part introduces the translation of chosen chapters of the book Le Parfum by the French author Jean-Claude Ellena, famous creator of parfumes. The translated parts deal with the process of creating a parfum and working with aroma substances. The second part comprises the translation commentary which consists of the translation analysis of the source text by translatologist Christiane Nord, the method of translation, the list of translation problems and their solutions. The aim of the thesis is to elaborate the functionally equivalent and to focus on the translation commentary.Tato bakalářská práce se skládá ze dvou částí. První částí je překlad vybraných kapitol z publikace Le Parfum od francouzského autora Jean-Claude Ellena, známého tvůrce parfémů. Přeložený text pojednává o procesu výroby parfému a práci s vonnými látkami. Druhou částí práce je odborný komentář, který se skládá z překladatelské analýzy výchozího textu podle translatoložky Christiane Nordové, popisu metody překladu, výčtu překladatelských problémů a jejich řešení. Cílem práce je vytvořit funkčně ekvivalentní překlad z francouzského jazyka do jazyka českého a doplnit jej odborným komentářem.Ústav translatologieInstitute of Translation StudiesFaculty of ArtsFilozofická fakult
Galectin-3 modulates the localization of β1-Integrin at the apical plasma membrane
No full textEpithelien bilden das Deck- und Abschlussgewebe aller äußerer und innerer Oberflächen von mehrzelligen Organismen. Epithelzellen zeichnen sich durch ihren polaren Aufbau und ihre morphologisch und funktionell zu unterscheidende apikale und basolaterale Membrandomänen aus. Um dies zu gewährleisten, besitzen Epithelzellen eine spezifische Transportmaschinerie, die den gerichteten Proteintransport an die jeweilige Membrandomäne bewerkstelligt. Ein wichtiger Sortierrezeptor im apikalen Proteintransport ist das Lektin Galektin-3. Dieses lösliche, im Zytosol synthetisierte Protein wird in polaren MDCK-Zellen präferentiell über die apikale Membran sekretiert, ehe es mittels Endozytose ins endosomale System eintritt und dort als Sortierrezeptor für neu synthetisierte apikale Glykoproteine dienen kann. Während die Bindung von Galektin-3 an die Plasmamembran prinzipiell an beiden Membrandomänen erfolgen kann, wurde in der vorliegenden Arbeit eine Clusterbildung sowie die Endozytose des Lektins interessanterweise nur an der apikalen Domäne beobachtet. Mittels Massenspektrometrie wurden Integrine als Interaktionspartner von Galektin-3 an der apikalen Plasmamembran von MDCK-Zellen identifiziert. Aus dieser Beobachtung ergab sich die Fragestellung, ob Galektin-3 auch zur apikalen Lokalisation von Integrinen in Epithelzellen beiträgt. Dies wurde Anhand des am weitesten verbreiteten Vertreters dieser Familie, β1-Integrin, untersucht. Mit Hilfe biochemischer und fluoreszensmikroskopischer Methoden wurde die Oberflächenverteilung von β1-Integrin in Galektin-3-überexprimierenden und Galektin-3-depletierten MDCK Zellen analysiert. In Galektin-3 überexprimierenden Zellen, sowie unter Einfluss von exogenem, rekombinaten Galektin-3 wurde eine verstärkte apikale Lokalisierung des Integrins beobachtet. Demgegenüber hatten eine Depletion des Lektins wie auch die Inhibierung seiner Endozytose verminderte apikale Expressionslevel von β1-Integrin zur Folge. Mittels metabolischer Markierung und Transportstudien konnte gezeigt werden, dass Galektin-3 die Sortierung von neu synthetisiertem β1-Integrin in den apikalen Transportweg vermittelt. So konnte in der vorliegenden Arbeit erstmals eine Rolle des Lektins Galektin-3 bei der Oberflächenverteilung eines Vertreters der Integrin-Familie, β1-Integrin, in polaren Epithelzellen aufgezeigt werden.Epithelia line the outer and inner surfaces of multicellular organisms. Epithelial cells are characterized by their polar structure and their morphologically and functionally distinct apical and basolateral membrane domains. To establish and maintain their polarity, epithelial cells possess a specific transport machinery that ensures directional transport to the respective membrane domains. An important sorting receptor in apical protein transport is galectin-3. This soluble lectin is synthesized in the cytosol and secreted in polarized MDCK cells preferentially at the apical membrane. Here, it enters the endosomal compartment via endocytosis and assists in the sorting of newly synthesized apical glycoproteins. While binding of galectin-3 can occur at both plasma membrane domains, clustering and endocytosis of the lectin were observed exclusively at the apical domain. Integrins were identified as interaction partners of galectin-3 at the apical plasma membrane of MDCK cells by mass spectrometry. This interesting observation raised the question whether galectin-3 is involved in the apical localization of integrins in epithelial cells. To test this, the surface distibution of the most widespread family member, β1-integrin was analysed in galcetin-3 overexpressing and galectin-3 depleted MDCK cells by biochemical assays and fluorescence microscopy. In galectin-3 overexpressing cells as well as in the presence of exogenous, recombinant galectin-3 the apical localization of β1-integrin was enhanced. Conversely, depletion of the lectin decreased apical expression leves of β1-integrin. Moreover, inhibition of galectin-3 endocytosis had the same effect. Using metabolic labeling and transport experiments it was shown, that galectin-3 mediates sorting of newly synthesized β1-integrin in the apical transport pathway. This study shows for the first time, that galectin-3 is able to modulate the surface distribution of the integrin family member β1-integrin in polarized epithelial cells
Analysis of international climate agreements and of Germany´s energy transition with a strong focus on e-mobility and the transferability of Norway´s e-mobility strategies into a German environment. A comparative approach
No full textThe ever-increasing consequences of climate and environmental changes across the planet could have a lasting impact on civilization that many still underestimate. This study presents an analysis of the development of international climate agreements and their current standings, focusing on potential governmental instruments available to decouple economic growth from emitting further greenhouse gases. The author focuses on the area of electric mobility and its importance for reaching certain environmental targets. The prevailing consensus among experts in the field is that Norway is the leading nation of electromobility. Drawing on Norway´s successful approach of the matter, the author seeks to assess the viability of implementing certain Norwegian strategies in the German automotive environment. Proven successful strategies such as (a) introducing effective and numerous purchase and tax benefits for electric vehicles, (b) closing the gap of misinformation within society and actively promoting electric vehicle use, and (c) constructing a well-functioning infrastructure with the combined effort of the government, municipalities and energy and automotive companies can be directly transferred to and applied in Germany´s electric mobility market. Moreover, the presented study entails a set of recommendations for the German automotive industry regarding possible future courses of action in the field of electromobility. Concluding, Germany has not succeeded in being a leader of electromobility yet but has the unique possibility to focus on its strengths: the capability of developing high-quality, premium products and thus noticeably improve the standards of electric vehicles, their battery technologies and charging infrastructures
PEMBELAJARAN VOKAL KELAS VIII DI SMP NEGERI 281 JAKARTA MENGGUNAKAN MODEL PEMBELAJARAN PROJECT BASED LEARNING
No full textAbstract: The learning process in Indonesia has been disrupted due to the COVID-19 pandemic. Class VIII vocal learning at SMPN 281 Jakarta, which initially had to meet face-to-face, required teachers and students to continue learning at home by doing online. Of course, after carrying out online learning, you need to re-adjust to face-to-face learning. Online learning is also a bit difficult to do if the material being studied is in the form of a practicum. Like one of them is vocal learning. In this learning, it is certain that the things that are taught are in the form of practice or are carried out directly. The purpose of this study is to find out how the vocal learning process in the school is through face-to-face after conducting an online learning. This study uses a qualitative approach to generate data in the form of descriptive text. The author also uses three research instrument techniques, including observation, interviews, and documentation. From the results of the study it is known that; Vocal learning for class VIII at SMPN 281 Jakarta was found in the same learning steps as the steps in the Project Based Learning learning model. This can be proven by the existence of work project planning, preparation of activity schedules, project monitoring, as well as assessment and evaluation of student work project results. In addition, it was also found that vocal techniques were still used in vocal learning which were taught and trained in the class.
Keywords: vocal learning, project based learning, vocal technique
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Abstrak: Proses pembelajaran di Indonesia menjadi terganggu sebab adanya peristiwa pandemi COVID-19. Pembelajaran vokal kelas VIII di SMPN 281 Jakarta yang awalnya harus bertemu tatap muka, mengharuskan guru dan siswa untuk melanjutkan pembelajaran dirumah secara daring. Tentunya, setelah melaksanakan pembelajaran secara daring butuh penyesuaian kembali untuk melakukan pembelajaran secara tatap muka. Pembelajaran daring juga agak sulit dilakukan apabila materi yang dipelajari dalam bentuk praktikum. Seperti salah satunya adalah pembelajaran vokal. Dalam pembelajaran ini, sudah pasti hal-hal yang diajarkan dalam bentuk praktik atau dilakukan secara langsung. Tujuan dari penelitian ini yaitu untuk mengetahui bagaimana proses pembelajaran vokal di sekolah tersebut melalui tatap muka setelah melakukan pembelajaran yang dilaksanakan secara daring. Penelitian ini menggunakan metode pendekatan kualitatif untuk menghasilkan data berupa teks deskriptif. Penulis juga menggunakan tiga teknik instrumen penelitian, diantaranya observasi, wawancara, dan dokumentasi. Dari hasil penelitian tersebut diketahui bahwa; pembelajaran vokal kelas VIII di SMPN 281 Jakarta ditemukan langkah-langkah pembelajaran yang sama seperti langkah-langkah pada model pembelajaran Project Based Learning. Hal ini dapat dibuktikan dengan terdapatnya perencanaan proyek kerja, penyusunan jadwal aktivitas, monitoring kerja, serta penilaian dan evaluasi hasil proyek kerja siswa. Selain itu juga ditemukan bahwa teknik-teknik vokal tetap digunakan pada pembelajaran vokal yang diajarkan dan dilatih di kelas tersebut.
Kata Kunci: pembelajaran vokal, pembelajaran berbasis proyek, teknik voka
