1,296 research outputs found
First person - Seda Yasa
No full textFirst Person is a series of interviews with the first authors of a selection of papers published in Journal of Cell Science, helping early-career researchers promote themselves alongside their papers. Seda Yasa is first author on 'CLN3 regulates endosomal function by modulating Rab7A-effector interactions', published in JCS. Seda is a PhD student in the lab of Stephane Lefrancois at the INRS, Quebec, Canada, investigating the role of CLN proteins in intracellular trafficking pathways to develop novel therapeutic strategies for lysosomal storage disorders.</p
Mire formation in the Ruja and Seda river valleys
No full textGorovņeva I. „Purvu veidošanās Rūjas un Sedas pazeminājumā”. Bakalaura darbs. Rīga, Latvijas Universitāte, Ģeogrāfijas un Zemes zinātņu fakultāte.-2006.
Darbs ietver: 65 lappuses, 23 attēlus, 4 tabulas un 1 pielikumu.
Bakalaura darba izstrādes gaitā veiktie pētījumi un iegūtie rezultāti sniedz informāciju par Rūjas un Sedas pazeminājumu veidošanās apstākļiem, attīstību un senās apdzīvotības izmaiņām holocēnā.
Darba gaitā autore iepazinās ar pieejamo literatūru par Rūjas un Sedas pazeminājumiem, ar kartogrāfiskajiem materiāliem un interneta resursiem, apguva lauka darba metodes un veica urbšanu, nogulumu vizuālo novērtēšanu, dokumentēšanu un paraugu ievākšanu, kā arī Kvartārvides laboratorijā Laimdotas Kalniņas vadībā apguva un veica sporu-putekšņu analīzes, iepazina darbu ar datorprogrammām TILIA un TILIA GRAPH, kuras izmantoja, lai izveidotu putekšņu diagrammas.
Atslēgas vārdi: Burtnieka paleoezers, Rūja, Seda, purvu veidošanās, sporu un putekšņu analīze.Gorovņeva I. „Mire formation in Ruja and Seda River Valleys”. Bachelor’s thesis - Rīga, University of Latvia, Faculty of geography and earth Sciences.-2006.
Bachelor’s thesis includes: 65 pages, 23figures, 4 tables and 1 attachment.
Investigations and obtained results during working out of the Bachelor’s work give information about the mire formation conditions and development in Ruja and Seda River Valley.
During working out of the Bachelor’s work author surveyed literature about Ruja and Seda River Valley, with cartographic materials and internet resources, acquired field work methods, carried out corings, visual estimation of the deposits and sampling. In the Laboratory of the Quaternary Environment author acquired and carried out pollen analysis, used computer programmes TILIA and TILIA GRAPH for creating of pollen diagrams.
Key words: Burtnieks paleolake, Rūja, Seda, mire formation, spores and pollen analysis
LANGUAGE IN SERVE OF ECO-ENVIRONMENT
No full textThis article examines the role of stylistic elements in enhancing the narrative depth and emotional resonance within the works of renowned author Gerald Durrell. Through a close analysis of selected passages featuring the animal characters depicted by G. Durrell, this study elucidates how the author employs personification, simile, metaphor, exaggeration, etc. to imbue these creatures with human-like qualities, creating a deeper connection be- tween the readers and his characters on an emotional level and effectively blurring the boundaries between the natural and human worlds. The use of different stylistic devices emerges as a powerful tool in Durrell's descriptive arsenal, enabling him to evoke vivid imagery and complex emotions through seemingly simple descriptions.
By comparing the English originals with their Italian translations, this article also explores the challenges and nuances of literary translation, highlighting the importance of fidelity to the author's stylistic choices while adapt- ing the text to a different linguistic and cultural context. Ultimately, this study contributes to our understanding of the intricacies of narrative technique and translation practice, underscoring the universal themes and emotions that resonate across diverse linguistic and cultural landscapes
On approximation process by certain modified Dunkl generalization of Szasz-Beta type operators
No full textKarateke, Seda (Arel Author)In this paper, we give a generalization of the Szasz-Beta type operators generated by Dunkl generalization of exponential function and obtain convergence properties of these operators by using Korovkin's theorem and weighted Korovkin-type theorem. We also establish the order of convergence by using the modulus of smoothness and the weighted modulus of continuity
Leyla Erbil's storyelling in the context of sociology of literature
No full textYalçın, Seda, "Edebiyat Sosyolojisi Bağlamında Leylâ Erbil'in Öykücülüğü", Yüksek Lisans Tezi, Kırıkkale, 2019. 1950 kuşağı öykücülerinden olan Leylâ Erbil, yayımladığı öykü, roman ve diğer türlerdeki eserleriyle toplumsal meselelere ve toplumu ilgilendiren siyasi, sosyal olaylara eserlerinde ki yaklaşımı açısından edebiyatımızda önemli bir yerdedir. Bu çalışmada edebiyat sosyolojisinin dünyada ve Türkiye'deki gelişimi üzerine bilgi verilecek olup, bu bilgiler ışığında Leylâ Erbil'in öykülerinin edebiyat sosyolojisi bağlamında incelenmesine yer verilmiştir. Öykülerini edebiyat sosyolojisi bağlamında incelediğimiz yazar, yayımladığı üç öykü kitabında da toplumsal meselelere yer vermiş, eserin kaleme alınma sürecinde yaşanan siyasi, sosyal ve kültürel hayata kayıtsız kalmamış aynı zamanda kendi hayatından izdüşümleri de eserlerine konu etmiştir. Bu bakımdan edebiyat sosyolojisi açısından eserleri toplum ve insanın etkileşimi üzerine bilgi vermesi yönüyle ayna niteliğindedir. Anahtar Sözcükler: Leylâ Erbil, Edebiyat Sosyolojisi, Öykü, Edebiyat.Yalçın, Seda, "Leyla Erbil's Storytelling In the Context of Sociology of Literature", Master Thesis, Kırıkkale, 2019. Leyla Erbil, one of the story writers of the 1950s, published stories, novels and trials. The importance of her writings in Turkish Language and Literature is the social issues she mentioned in those genres. In this study, the development of literary sociology in Turkey and in the world was mentioned and the stories of Leyla Erbil were examined in this context. The author, whose stories are examined in the context of the sociology of literature, has included social problems in three short stories she has published. She was also influenced by the period of political, cultural and social perspective in which she lived. In this regard, her stories are obviously contain elements belonging to the sociology of literature. It is said to be the stories of Leyla Erbil serve as mirrors as they reflect the social and political problems of the period in which she lived. Key Words: Leyla Erbil, Sociology of literatüre, story, literatür
Intracranial aneurysms: coiling versus flow-diverging stents A study comparison regarding the mortality rate
No full textHintergrund: Diese Arbeit beschäftigt sich mit dem aktuellen Forschungsstand und den klinisch-medizinischen Herausforderungen im Zusammenhang mit der Behandlung unrupturierter intrakranieller Aneurysmen. Sie zielt darauf ab, die Wirksamkeit von zwei etablierten Neurointerventionsverfahren: dem Stent-unterstützten Coiling und der Anwendung von Flow-Diverter-Stents bei der Reduzierung der Mortalitätsrate bei Patient*innen mit dieser Erkrankung zu bewerten. Unrupturierte intrakranielle Aneurysmen stellen eine ernsthafte Bedrohung für die Patient*innen dar, da sie das Risiko einer lebensbedrohlichen Ruptur erhöhen. Angesichts dieser Herausforderung sind das Stent-unterstützte Coiling und die Verwendung von Flow-Diverter-Stents als vielversprechende Behandlungsmethoden anerkannt. Trotzdem besteht weiterhin Unsicherheit darüber, welche dieser beiden Techniken die besten klinischen Ergebnisse erzielt.
Ziele: Das Ziel dieser Bachelorarbeit besteht darin, die Mortalitätsraten von zwei führenden Behandlungsmethoden für unrupturierte intrakranielle Aneurysmen zu vergleichen. Der Vergleich erfolgt zwischen dem Stent-unterstütztes Coiling und dem Flow-Diverter. Ein besonderes Augenmerk liegt auf der Aufdeckung potenzieller Unterschiede zwischen den beiden Methoden. Ein zusätzliches Ziel besteht darin, anhand der gewonnenen Ergebnisse des Vergleichs die Forschungsfrage zu beantworten.
Methode: Das Design dieser Bachelorarbeit folgt einem Ansatz, der darauf abzielt, ausgewählte klinische Studien miteinander zu vergleichen. Mittels des PICO-Systems wurde die Forschungsfrage gebildet. Zur Durchführung dieses Vergleichs werden acht Studien über die drei Datenbanken "PubMed", "ScienceDirect" und "Google Scholar" identifiziert, die den festgelegten Einschluss- und Qualitätskriterien entsprechen. Jede einzelne Studie wird einzeln präsentiert, gefolgt von einem Vergleich und einer Analyse der jeweiligen Ergebnisse im Hinblick auf die Forschungsfrage der Arbeit. Das Ziel dieser Arbeit ist es, die Ergebnisse dieser Studien zusammenzufassen und zu bewerten, insbesondere hinsichtlich der Behandlungsmethoden, für unrupturierte intrakranielle Aneurysmen, die mit unterschiedlichen Mortalitätsraten in Verbindung stehen. Es wird ein Vergleich zwischen den beiden endovaskulären Behandlungsmethoden durchgeführt. Die Ergebnisse werden sowohl grafisch als auch tabellarisch dargestellt.
Ergebnisse: In dieser Arbeit wurden insgesamt acht Studien analysiert, die zusammen eine Stichprobe von 1.600 Patient*innen umfassten, die sich einer Behandlung im Vergleich für ein unrupturierte intrakranielle Aneurysma unterzogen. Die Studien 1 bis 4 befassten sich mit der Anwendung von Flow-Divertern, während sich die Studien 5 bis 8 mit der Behandlung mittels Stent-unterstütztem Coiling beschäftigten. Die Ergebnisse dieser Studien zeigten, dass es minimale Unterschiede zwischen Stent-unterstütztem Coiling und Flow-Divertern hinsichtlich der Mortalitätsraten nach 26 Monaten, der Okklusion von Aneurysmen und der Anzahl der behandelten Patient*innen ergab.
Diskussion: Die vorliegenden Ergebnisse deuten darauf hin, dass die Stent-unterstützte Coiling-Methode im Vergleich zum Einsatz von Flow-Diverters die Mortalitätsrate nach 26 Monaten bei unrupturierten intrakraniellen Aneurysmen verringert. Obwohl einige der analysierten Studien keine signifikanten Unterschiede in der Mortalitätsrate zeigen, lässt das Gesamtergebnis darauf schließen, dass Stent-unterstütztes Coiling im Vergleich zu Flow-Diverters mit einer geringeren Mortalitätsrate verbunden ist.Background: This thesis addresses the current state of research and the clinical-medical challenges associated with the treatment of unruptured intracranial aneurysms. It aims to evaluate the effectiveness of two established neurointerventional procedures: stent-assisted coiling and the use of flow diverter stents in reducing the mortality rate among patients with this condition. Unruptured intracranial aneurysms pose a serious threat to patients, as they increase the risk of life-threatening rupture. Given this challenge, stent-assisted coiling and the use of flow diverter stents are recognized as promising treatment methods. However, uncertainty persists regarding which of these two techniques yields the best clinical outcomes.
Aims: The aim of this bachelor's thesis is to compare the effectiveness of two leading treatment methods for unruptured intracranial aneurysms: stent-assisted coiling and flow diverters, in terms of their mortality rates after complete occlusion. Particular attention is given to identifying potential differences between the two methods. An additional aim is to answer the research question based on the findings of the comparison.
Methods: The design of this bachelor's thesis follows an approach aimed at comparing selected clinical studies. The research question was formulated using the PICO system. To conduct this comparison, eight studies meeting the established inclusion and quality criteria were identified from the three databases "PubMed," "ScienceDirect," and "Google Scholar." Each study is presented individually, followed by a comparison and analysis of the respective results in relation to the research question. The objective of this thesis is to summarize and evaluate the results of these studies, particularly concerning the treatment methods for unruptured intracranial aneurysms associated with different mortality rates. A comparison between the two endovascular treatment methods is conducted. The results are presented both graphically and in tabular form.
Results: In this thesis, a total of eight studies were analyzed, encompassing a sample of 1,600 patients who underwent treatment for unruptured intracranial aneurysms. Studies 1 through 4 focused on the use of flow diverters, while studies 5 through 8 examined stent-assisted coiling. The results of these studies indicated minimal differences between stent-assisted coiling and flow diverters in terms of mortality rates after 26 months, aneurysm occlusion, and the number of treated patients.
Discussion: The present results suggest that the stent-assisted coiling method reduces the mortality rate after 26 months for unruptured intracranial aneurysms compared to the use of flow diverters. Although some of the analyzed studies did not show significant differences in mortality rates, the overall findings indicate that stent-assisted coiling is associated with a lower mortality rate compared to flow diverters
Exploration of the vicinity of Seda in out-of-school geography lessons
No full textDiplomdarba temats ir „Sedas pilsētas apkaimes pētīšana ārpus skolas ģeogrāfijas stundās”. Diplomdarba tēmas izvēle saistīta ar autores pedagoģisko darbu skolā. Darba mērķis ir, pamatojoties uz teorijas atziņām par pētīšanas metodēmģeogrāfijas stundās, izstrādāt un aprobēt materiālus, lai tos varētu izmantot ģeogrāfijas nodarbībās. Galvenais darbā ir noskaidrot un novērtēt Sedas un tās apkārtnes izpētes iespējas, lai tuvāko apkārtni varētu pētīt stundu laikā, bet attālināto apkaimi – pārgājienos un mācību ekskursiju laikā. Šī izpēte ir vēl viena iespēja paplašināt novadpētniecības darbu no ģeogrāfijas viedokļa.
Autorediplomdarbu sadala četrās nodaļās:
1.nodaļa. Sedas pilsētas un apkārtnes īss aprakst.
2.nodaļa. Dabas resursi.
3.nodaļa. Ģeogrāfijā biežāk lietoto mācību darba formu un metožu izpēte.
4.nodaļa. Metodiskais materiāls ģeogrāfijas nodarbībām.
Nodaļā tiek veidota mācību satura apguves organizācijas tematiski metodiskā izstrāde ģeogrāfijas stundām.The diploma work topic is „The research of town Seda neighborhood apart from geography lessons at school”.
The choice of the topic is connected to the author’s pedagogical work at school. The aim is, based on the theoretical knowledge of the research methods at geography lessons, to work out and try the materials so that to be able to use them during the geography lessons.
The main point in the work is to clear up and evaluate the Seda and its environs research possibilities in order to watch and learn them at the lessons, but remote plots – going hiking and on educational excursions. The work is one more opportunity to widen the regional studies work from the geographical point of view.
The author has divided the diploma work into 4 parts.
Part 1 - The town Seda and its environment short description.
Part 2 – Nature resources investigated.
Part 3 – The research of the most often used educational forms and methods in geography.
Part 4 – Methodological materials
Not informed by the author
No full textO exercício físico (EF) tem relação com melhora na qualidade de vida. Quando nos referimos ao sistema nervoso (SN), o EF diminui efeito lesivo causado por doenças, possibilitando a recuperação em menor tempo, além de contribuir com processos relacionados à melhora cognitiva e redução da ansiedade. Contudo, o EF pode elevar à formação de radicais livres (RL) que, em contato com o SN pode reduzir seu potencial protetor e terapêutico. Os flavonoides são compostos com ação antioxidante e entre eles estão as antocianinas, um dos mais importantes flavonoides com ação antioxidante e anti-inflamatória. O açaí possui grande quantidade de flavonoide podendo, portanto, em associação com EF, potencializar efeitos benéficos ao SN. O presente estudo investigou os efeitos do EF combinado com ingestão de polpa de açaí sobre o comportamento e eventos moleculares em ratos. Para tanto, 32 ratos machos com aproximadamente 120 dias de vida foram divididos em 4 grupos experimentais: i) Sedentário suplementado com açaí (SedA); ii) Sedentário (Sed); iii) Exercício (Exe) e iv) Exercício suplementado com açaí (ExeA). O protocolo de EF na esteira foi de 7 dias, sendo nos dois primeiros sessões de 30 minutos com velocidade de 14m/min. Do terceiro ao sétimo dia, apenas a duração foi aumentada para 1 hora. A suplementação com polpa de açaí foi feita por gavagem com dosagem de 500mg/Kg diluído em água e ocorreu uma hora antes do EF. Os animais sem suplementação (i e ii) receberam água. Após 24 horas da última sessão de treinamento, os animais foram submetidos, individualmente, aos testes de campo aberto (CA) para avaliar ansiedade e reconhecimento de objeto (RO) para avaliar a memória. Após os testes os animais foram eutanasiados sob anestesia e os tecidos do hipocampo e amígdala foram analisados. As proteínas BDNF, GDNF, GAP43 e GFAP foram analisadas por Western blot e a cinética da atividade das enzimas antioxidantes CAT, GPx e SOD foi testada por imunoensaio. Os dados comportamentais e moleculares foram avaliados estatisticamente através do software Prisma. O peso corporal foi diferente entre os grupos sedA e Exe (0,0001). O teste de rearing (ansiedade) apontou diferenças entre os grupos SedA e ExeA quando comparados com Sed (0,0003). A micção diminuiu nos grupos SedA e ExeA (0,0121). Os grupos SedA e ExeA (0,0042) tiveram comportamentos diferentes no teste de RO em comparação com grupo Sed (0,0026). Houve aumento da atividade de GPx no hipocampo dos animais do grupo Exe em comparação com grupo Sed (0,0002) e, na amígdala, houve diferenças entre grupos Exe e ExeA quando comparados com Sed (0,0037). Houve efeito da administração de açaí sobre o BDNF maduro no hipocampo, levando à diferença na razão BDNF maduro e BDNF total entre os grupos SedA e ExeA em relação ao Sed (0,0107) e (0,0035). Não houve diferença entre os grupos nas análises das proteínas GDNF, GAP43 e GFAP. A associação de EF a açaí influenciou positivamente alguns parâmetros relacionados à ansiedade, denotando possível efeito ansiolítico. Houve ainda efeitos sobre atividade da enzima antioxidante GPx no hipocampo e amígdala, indicando que, possivelmente, essa possa ser uma das vias que recebeu influência do EF e açaíPhysical exercise (PE) is related to an improvement in the quality of life. When we refer to nervous system (NS), the PE reduce the harmful effect caused by diseases, allowing recovery in a shorter time, besides contributing with processes related to cognitive improvement and reduction of anxiety related events. However, EF can raise the formation of free radicals (FR) which, in contact with CN can reduce the protector and therapeutic potential. Flavonoids are compounds with antioxidant action such as anthocyanins, one of the most important flavonoids with antioxidant and anti-inflammatory activity. Açaí has a large amount of this flavonoid and associated to PE can potencialize benefits to CN. The present study investigated the effects of PE combined with ingestion of açaí pulp on behavior and molecular events in rats. For this, 32 male rats with approximately 120 days of life were divided into 4 experimental groups: i) Sedentary supplemented with açaí (SedA); ii) Sedentary (Sed); iii) Exercise (Exe) and iv) Exercise supplemented with açaí (ExeA). The PE protocol was 7 days of treadmill running. The first two sessions was 30 minutes of PE with speed of 14m / min. From the third to the seventh day only the duration was increased to 1 hour. Supplementation with açaí pulp was made by gavage at a dosage of 500mg/kg diluted in water, one hour before EF. The animals without supplementation (i and ii) received water. After 24 hours of the last training session, the animals were individually submitted to the open field (OF) tests in order to evaluate anxiety and object recognition (OR) to evaluate memory. After the tests the animals were euthanized under deep anesthesia and the hippocampal and amygdala tissues were analyzed. The proteins BDNF, GDNF, GAP43 and GFAP were analyzed by Western Blot and the kinetics of the activity of the antioxidant enzymes CAT, GPx and SOD by immunoassay. The behavioral and molecular data were statistically evaluated using the Prisma software. There was a difference in body weight between SedA and Exe groups (0.0001). The rearing evaluation was different SedA and ExeA when compared with Sed (0.0003). The miction reduced in SedA and ExeA groups 0.0121). The groups SedA and ExeA (0.0042) had had different behaviors in the OR test when compared to Sed (0.0026). There was increase in GPx activity in hippocampus in the Exe group and in the amygdala the activity was higher in Exe and ExeA groups than in Sed group (0.0002). We observed effect of the açaí in the mature BDNF in the hippocampus, resulting in difference in the ratio mature BDNF/total BDNF in the SedA and ExeA in comparison with Sed (0.0107 and 0.0035). We did not found differences in GDNF, GAP43 and GFAP. The association of PE and açaí influenced positively parameters related to anxiety behavior. There was effect over the antioxidant activity of GPx both in hippocampus and amygdala, indicating que, probably, this can be one of the pathways which can be influenced by the PE and aça
Procjena obilježja puzanja spojeva namještaja s klamericom izrađenih od različitih vrsta drva
No full textIn this study, creep characteristics of single stapled furniture joints made of Scotch pine, alder and beech wood under three different load levels were considered. Load levels were determined as 30 %, 40 % and 50 % of the maximum load obtained as a result of static shear test before creep load and applied to wood joints. Laboratory test results showed that the highest creep deformation was observed in the joints made of Scotch pine with the lowest density, while the lowest creep deformation was observed in the joints made of beech with the highest density. In addition, the joints were exposed to lowest creep deformation at the 30 % load level, then the creep deformation of the joints increased at 40 % load level and it reached the highest value at 50 % load level. As a result of creep test, deformation in single stapled joints made of Scotch pine, alder and beech were determined as 2.74 %, 3.71 % and 4.37 % of the deformation that occurred as a result of static shear test performed before creep test, respectively. Ultimately, the overall average creep deformation value of a single staple wood joint under creep loading was determined as 3.61 %.U radu su istraživana obilježja puzanja spojeva namještaja s klamericom izrađenih od borovine, johovine i bukovine pri različitim stupnjevima opterećenja. Stupnjevi opterećenja definirani su kao 30, 40 i 50 % najvećeg opterećenja dobivenoga kao rezultat statičkoga smičnog ispitivanja prije opterećenja pri puzanju te su primijenjeni na drvne spojeve napravljene klamericom. Rezultati laboratorijskih ispitivanja pokazali su da je najveća deformacija puzanja zabilježena na spojevima izrađenima od borovine, koja ima najmanju gustoću, a najmanja je deformacija puzanja uočena na spojevima od bukovine, koja ima najveću gustoću. Usto, najmanja deformacija puzanja spojeva zabilježena je pri stupnju opterećenja od 30 %, zatim se deformacija puzanja povećala pri stupnju opterećenja od 40 % i dosegnula najveću vrijednost pri stupnju opterećenja od 50 %. Rezultati ispitivanja puzanja pokazali su da je deformacija spojeva s klamericom izrađenih od borovine, johovine i bukovine iznosila 2,74, 3,71 i 4,37 % deformacije koja je rezultat statičkoga smičnog naprezanja provedenoga prije ispitivanja puzanja. U konačnici, ukupna prosječna vrijednost deformacije puzanja drvenog spoja s klamericom iznosila je 3,61 %
Changes of vegetation in course of the development of the Seda mire
No full textIlze Pumpure, 2007. Veģetācijas izmaiņas Sedas purva attīstības gaitā. Bakalaura darbs
dabaszinātņu bakalaura grāda iegūšanai ģeogrāfijā. Latvijas Universitāte. Ģeogrāfijas
un Zemes zinātņu fakultāte. Rīga.
Bakalaura darba mērķis bija izpētīt veģetācijas izmaiņas Sedas purva attīstības gaitā
izmantojot paleobotāniskas metodes (sporu-putekšņu un kūdras botāniskā sastāva analīzi). Šī
pētījuma rezultātā apkopota pieejamā literatūra, izanalizēti agrāko pētījumu materiāli, kā arī
veikta sporu-putekšņu analīze purva nogulumiem, kā arī noteikts kūdras botāniskais sastāvs.
Darbā iegūtie rezultāti ļauj izsekot veģetācijas izmaiņām Sedas purvā kopš holocēna
sākuma, kad sāka veidoties priežu-bērzu meži, kurus boreālā nomainīja priežu meži, bet
savukārt atlantiskajā laikā jauktu koku meži ar ievērojamu vīksnu, liepu un ozolu daudzumu.
Vēlāk, klimatam kļūstot vēsākam, meža sastāvā arvien lielāku īpatsvaru ieguva skujkoki, bet
vēlāk subatlantiskajā laikā izveidojās priežu-bērzu meži. Tā kā purva ieplaka ir ļoti liela, tad
var secināt, ka purva veidošanās ir sākusies boreāla sākuma vai vidusposmā atkarībā no
veidošanās apstākļiem. Pēc pašreiz esošās informācijas var spriest, ka vietās, kur purvs
veidojies pārpurvojoties minerālgruntij, kūdra ir sākusi uzkrāties boreāla sākumā, bet vietās,
kur tas veidojies aizaugot ūdenstilpei, tikai boreāla otrajā pusē.
Kaut arī darba uzdevumi ir paveikti un uzstādītais mērķis ir sasniegts, tomēr autore
uzskata, ka tas ir tikai iesākums Sedas purva attīstības un veģetācijas dinamikas pētījumos.
Darba kopējais apjoms ir 40. lappuses, tajā skaitā 13 attēli, 1 tabula, pielikums, kā arī
izmantotās literatūras saraksts, kas satur 16 publicēto darbu, 1 nepublicēto avotu un 2
interneta adreses.
Atslēgas vārdi: Sedas purvs, veģetācija, sporu un putekšņu analīze, kūdras botāniskais
sastāvsIlze Pumpure, 2007. Changes of Vegetation in Course of the Development of the Seda
Mire. Bachelor’s Thesis in Geography. University of Latvia. Faculty of Geography and
Earth Sciences. Rīga.
The aim of Bachelor’s thesis was to investigate the changes of vegetation in course of
the Seda Mire development by paleobotanical methods (pollen and peat composition
analyses). The surveys of literature, analysis of materials from previous investigations, as well
as pollen analysis and peat botanical composition have been done in result of this work.
The results obtained allow following vegetation changes in the Seda Mire since
beginning of the Holocene, when the pine-birch forest started to form, which were replaced
by pine forest during the Boreal. During the Atlantic Time mixed tree forest with significant
number of elm, linden tree and oak took place. Latter the climate become cooler and number
of coniferous increase in the forest composition. Pine-birch forest has been formed during the
Subatlantic Time. As mire depression is very large, then time of the mire formation varies
from the beginning the Boreal in places, where mire has been originated from mineralsoil
paludification to middle of the Boreal where it developed from the fill of shallow basins.
The tasks of work have been done and the target is reached, but author consider that it
is just star of investigations of the Seda Mire development and vegetation.
The total volume of the work is 40. pages, including 13 figures, 1 table, appendix, as well as
list of references, which include 16 printed sources, 1 manuscript and 2 internet addresses.
Key words: Seda Mire, vegetation, pollen analysis, peat botanical compositio
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