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Dissertations / Theses on the topic 'Bog forests'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Hjelm, Axel. "From forest to open bog : A status report from a forest-to-open bog-restoration, 8 years later." Thesis, Uppsala universitet, Institutionen för biologisk grundutbildning, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-451054.

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Peatlands are associated with a range of ecosystem services such as long-term carbon storage and sequestration, biodiversity, and potential water reservoirs, mitigating floods and droughts. However, in the 20th century, large peatland areas in the northern temperate and boreal regions were drained by ditching, primarily to enhance forest and agricultural production and peat harvesting. Drainage of peatland is associated with a reduction in wet tolerant peatland species, reduced long term carbon sequestration and increased carbon emissions, conflicting with the goals of the Convention on Biolog

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Bos, Merijn M. "Insect diversity and trophic interactions in shaded cacao agroforestry and natural forests in Indonesia." Doctoral thesis, [S.l.] : [s.n.], 2006. http://webdoc.sub.gwdg.de/diss/2006/bos.

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Hermans, Renee Elisabeth Maria. "Impact of forest-to-bog restoration on greenhouse gas fluxes." Thesis, University of Stirling, 2018. http://hdl.handle.net/1893/27319.

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Large areas of northern peatlands have been drained and afforested in the second half of the 20th century with significant impacts on important ecosystem services, including loss of biodiversity and potential changes in C storage. A considerable effort is currently invested into restoring original peatland function and ecosystem services, with an increasing area of newly restored peatland areas over recent years. However, the effect of restoration on the greenhouse gas (GHG) budget is unknown. This study is the first quantification of CO2, CH4 and N2O fluxes from forest-to-bog restoration site

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Cameron, Alastair. "The effect of afforestation on the physical and biological characteristics of blanket bog." Thesis, Queen's University Belfast, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239018.

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Wright, Margaret Evonne. "A genetic comparison of bog vs. forest populations of Metrosideros polymorpha (Myrtaceae) in Hawai'i." Connect to online resource, 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1442957.

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Hoppe, Sabina, and Frida Thomsen. "Occurrence of organochlorine compounds in a forest bog at Stubbetorp, Kolmården : -Indication for a natural formation?" Thesis, Linköping University, Department of Thematic Studies, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-3321.

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<p>Volatile organochlorine compounds emitted from natural sources can participate in environmentally relevant processes affecting life on Earth, such as stratospheric ozone destruction and warming of the troposphere. The aim of this study was to investigate if forest bogs contribute to the environmental input of naturally produced volatile organochlorine compounds. The concentrations of four different volatile organochlorine compounds were determined in ambient air, rainwater, surface water, and sub-surface water. For chloroform, up to 10-times higher concentrations were detected in the surfac

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Selby, Christopher. "Micropropagation of Sitka spruce : (Picea sitchensis (Bong.) Carr.)." Thesis, Queen's University Belfast, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.356923.

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FLORÊNCIO, João Carlos Procópio. "Análise e predição de bilheterias de filmes." Universidade Federal de Pernambuco, 2016. https://repositorio.ufpe.br/handle/123456789/17639.

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Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2016-08-08T12:41:40Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) dissertacao-mestrado-jcpf.pdf: 6512881 bytes, checksum: 0e42b481cf73ab357ca212b410fbd5ee (MD5)<br>Made available in DSpace on 2016-08-08T12:41:40Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) dissertacao-mestrado-jcpf.pdf: 6512881 bytes, checksum: 0e42b481cf73ab357ca212b410fbd5ee (MD5) Previous issue date: 2016-02-29<br>Prever o sucesso de um fi

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Köchy, Martin, and Sven Bråkenhielm. "Separation of effects of moderate N deposition from natural change in ground vegetation of forests and bogs." Universität Potsdam, 2008. http://opus.kobv.de/ubp/volltexte/2008/1662/.

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The effect of moderate rates of nitrogen deposition on ground floor vegetation is poorly predicted by uncontrolled surveys or fertilization experiments using high rates of nitrogen (N) addition. We compared the temporal trends of ground floor vegetation in permanent plots with moderate (7–13 kg ha−1 year−1) and lower bulk N deposition (4–6 kg ha−1 year−1) in southern Sweden during 1982–1998. We examined whether trends differed between growth forms (vascular plants and bryophytes) and vegetation types (three types of coniferous forest, deciduous forest, and bog). Trends of site-standardized cov

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10

Sellén, David. "Big Data analytics for the forest industry : A proof-of-conceptbuilt on cloud technologies." Thesis, Mittuniversitetet, Avdelningen för informations- och kommunikationssystem, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-28541.

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Large amounts of data in various forms are generated at a fast pace in today´s society. This is commonly referred to as “Big Data”. Making use of Big Data has been increasingly important for both business and in research. The forest industry is generating big amounts of data during the different processes of forest harvesting. In Sweden, forest infor-mation is sent to SDC, the information hub for the Swedish forest industry. In 2014, SDC received reports on 75.5 million m3fub from harvester and forwarder machines. These machines use a global stand-ard called StanForD 2010 for communication and

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11

Zerva, Argyro. "Effects of afforestation and forest management on soil carbon dynamics and trace gas emissions in a Sitka spruce (Picea sitchensis (Bong) Carr.) forest." Thesis, University of Edinburgh, 2004. http://hdl.handle.net/1842/574.

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The establishment and intensive management of forests for the production of timber can have significant effects on the soil carbon dynamics. The establishment of forest on organic soils under grasslands may lead to substantial losses in soil carbon, due to the site preparation for the planting of trees and other disturbances. This is gradually compensated by carbon accumulation in tree biomass as the forest grows until clearfelling at maturity may initiate another substantial carbon loss. This study had two main aims. The first was to investigate the long-term effects of forest establishment o

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12

Clarke, Gary C. "Patterns of cone production in Sitka spruce (Picea sitchensis (Bong.) Carr.) and the prediction of cone crops." Thesis, University of Aberdeen, 1997. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU090388.

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The location of cones in crowns of grafts and mature planted tress was studied in detail and relationships between cone type and shoot characteristics were investigated. The results enabled a regression model to be developed to relate cone counts in certain crown zones to overall cone bearing. It was demonstrated that there are patterns of cone production in the crowns of <I>Picea sitchensis. </I>Preferred zones for female bearing are high in the tree. Male cones tend to occur lower in the tree and more proximal to the stem than female cones. As total female cone production increases, cones ar

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Vihermaa, Leena. "Influence of site factors and climate on timber properties of Sitka spruce (Picea sitchensis (Bong.) Carr.)." Thesis, University of Glasgow, 2010. http://theses.gla.ac.uk/2271/.

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In plantation grown Sitka spruce, timber density is an important quality concern. Currently Sitka spruce timber meets the requirements for C16 strength grading which is the minimum requirement for construction uses. However, the margin is not exceeded by much and a small reduction in density could lower the log grading. Therefore it is essential to understand how timber density is impacted by site factors and climate in order to predict the potential effects of climate change on timber quality in Sitka spruce in the future. This has important economic implications for UK forestry. To assess th

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Sheridan, Saya. "Restoration of blanket bog vegetation as a habitat for red grouse following clearance of immature Sitka spruce forest on the west coast of Scotland." Thesis, University of Newcastle Upon Tyne, 2008. http://hdl.handle.net/10443/1586.

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Blanket bog habitat is a globally scarce resource and as a result is amongst the most important of British vegetation types in an international context. The habitat supports four Annex 1 bird species including golden eagle (Aquila chrysaetos) as well as red grouse (Lagopus lagopus) which is only found on heather moorland habitats and provides an important food source for golden eagle. The habitat is a Biodiversity Action Plan habitat with a target to restore 845,000 hectares of degraded blanket bog by 2015. At least 190,000 hectares of blanket bog habitat have been planted with conifer plantat

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15

Emmett, Bridget A. "The effects of harvesting on soil nitrogen transformations in a Sitka spruce (Picea sitchensis (Bong.) Carr.) plantation at Beddgelert forest (N. Wales)." Thesis, University of Exeter, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.253559.

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Colwell, Stephanie Renee. "Characterization of Upland/Wetland Community Types: Changes to Flatiron Lake Bog over a 24-Year Period." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1243443626.

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Dodson, Alan Michael. "Horizontal Forest: A Retreat on the AT." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/35328.

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This is a project about reconciling the rational world of architecture with the empirical world of nature. A small retreat on the Appalachian Trail near Dragon's Tooth, this project employs two elements belonging to each of those entities. The retreat is composed of a double envelope. The exterior envelope is a wooden screen and dry stacked stone wall relating to the natural world. In contrast, the second envelope is a glass and steel box, analogous to the rationality of man. Dimensional 2x4 lumber models are employed to study the light conditions, patterns, and construction of the woode

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18

Zarebanadkoki, Samane. "Essays on Health Economics Using Big Data." UKnowledge, 2019. https://uknowledge.uky.edu/agecon_etds/82.

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This dissertation consists of three essays addressing different topics in health economics. In the first essay, we perform a systematic review of peer-reviewed articles examining consumer preference for the main electronic cigarette (e-cigarette) attributes namely flavor, nicotine strength, and type. The search resulted in a pool of 12,933 articles; 66 articles met the inclusion criteria for this review. Current literature suggests consumers preferred flavored e-cigarettes, and such preference varies with age groups and smoking status. Consumer preference for nicotine strength and types depend

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Eisenberg, Jane L. "Structure, Composition, and Emplacement History of Orbicular Granites and Comb Layering, Sierra and Sequoia National Forests, CA." Scholarship @ Claremont, 2014. http://scholarship.claremont.edu/scripps_theses/469.

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Orbicular and comb layer textures in igneous environments are evidence of an unusual heating and cooling regime in small pockets at the edges of crystallizing magmas. Changes in the composition of a magma spark rapid changes in temperature, which cause the temporary suppression of normal crystal nucleation. As the superheated or supercooled magma returns to equilibrium temperature, crystallization occurs exclusively on pre-existing nucleation surfaces (floating xenoliths or wall rocks), creating orbicular and comb layering textures. Orbs and comb layers collected from two localities in the cen

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Al-Shouiliy, Khaldoon. "The Impact of Real Big Data on our Future and Risk Identification." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1593267375537873.

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Kindbom, Hannes. "LSTM vs Random Forest for Binary Classification of Insurance Related Text." Thesis, KTH, Matematisk statistik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-252748.

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The field of natural language processing has received increased attention lately, but less focus is put on comparing models, which differ in complexity. This thesis compares Random Forest to LSTM, for the task of classifying a message as question or non-question. The comparison was done by training and optimizing the models on historic chat data from the Swedish insurance company Hedvig. Different types of word embedding were also tested, such as Word2vec and Bag of Words. The results demonstrated that LSTM achieved slightly higher scores than Random Forest, in terms of F1 and accuracy. The mo

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Murphy, Sean McCarthy. "STATUS OF A REINTRODUCED BLACK BEAR POPULATION IN THE BIG SOUTH FORK AREA OF KENTUCKY." UKnowledge, 2011. http://uknowledge.uky.edu/forestry_etds/1.

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Large carnivores have been subjected to overexploitation and extensive habitat loss for centuries. Reintroduction has become an increasingly used tool for recovering and reestablishing large carnivore populations; however, most reintroductions have either failed or resulted in small populations that are vulnerable to deleterious demographic, environmental, and genetic effects that can lead to population loss or extinction. Longterm monitoring of small, reintroduced populations is critical to population persistence and viability. To evaluate long-term reintroduction success and current status o

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Brun, Stéphane Hotyat Micheline Arnould Paul. "De l'erg à la forêt." Paris : Université Paris Sorbonne - Paris IV, 2007. http://www.theses.paris4.sorbonne.fr/brun/paris4/2006/brun/html/index-frames.html.

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SCHAEFER, Holger Christian. "Production and decomposition dynamics of extraradical hyphae of arbuscular mycorrhizal fungi in warm-temperate forests of Chamaecyparis obtusa (hinoki cypress)." Kyoto University, 2019. http://hdl.handle.net/2433/243322.

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Silverman, Noah L. "Assessing the consequences of hurricane-induced fragmentation of mangrove forest on habitat and nekton in Big Sable Creek, Florida." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001751.

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Bartolozzi, IV Arthur R. "The Forest for the Trees: Using Big Data to Improve Preoperative Assessment and Risk Stratification in Pediatric Orthopedic Surgery." Thesis, Harvard University, 2017. http://nrs.harvard.edu/urn-3:HUL.InstRepos:32676123.

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This thesis uses the Kid’s Inpatient Database to analyze surgical epidemiology, clinical outcomes, LOS, and total costs for two major pediatric surgeries. The goal is to establish clinically meaningful identifiers of risk, complexity, and variation in management both for improving preoperative assessment and understanding demographic determinants of health. Chapter 1 focused on open hip reduction for the treatment of DDH. This has become more expensive despite shorter hospital stay over time. It is also a longer, more costly experience for children who have reached walking age particularly t

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Bauen, Ausilio Walter. "Gasification-based biomass fuel cycles : a decision and policy analysis." Thesis, King's College London (University of London), 2000. https://kclpure.kcl.ac.uk/portal/en/theses/gasificationbased-biomass-fuel-cycles--a-decision-and-policy-analysis(13e4628c-9a91-4325-98b0-76683350e8d9).html.

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Virkkala, Linda, and Johanna Haglund. "Modelling of patterns between operational data, diagnostic trouble codes and workshop history using big data and machine learning." Thesis, Uppsala universitet, Datalogi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-279823.

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The work presented in this thesis is part of a large research and development project on condition-based maintenance for heavy trucks and buses at Scania. The aim of this thesis was to be able to predict the status of a component (the starter motor) using data mining methods and to create models that can predict the failure of that component. Based on workshop history data, error codes and operational data, three sets of classification models were built and evaluated. The first model aims to find patterns in a set of error codes, to see which codes are related to a starter motor failure. The s

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Clark, Brian Charles. "Characteristics and Management Implications of Mollic Soils in Forest Versus Grassland Settings in Central California." DigitalCommons@CalPoly, 2021. https://digitalcommons.calpoly.edu/theses/2326.

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Efforts to sequester soil carbon (C) should consider soils intrinsically capable at C retention. Of the mineral soil orders, Mollisols have minimum requirements for soil organic C (SOC; over 0.06 %) and basic saturation (over 50 %). In the U.S., grasslands comprise 93% of the vegetation mapped above Mollisols. Soils beneath the southern extent of Sequoia sempervirens (redwood) forests in central California are mapped as Molliols. It widely accepted that redwood forests harbor considerable biomass C, but the extent to which aboveground C is retained in the soil is not well understood. This stud

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Hernandez, Alexander J. "Spatiotemporal Modeling of Threats to Big Sagebrush Ecological Sites in Northern Utah." DigitalCommons@USU, 2011. https://digitalcommons.usu.edu/etd/957.

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This study tested the performance of classification, regression, and ordination techniques to evaluate the spatiotemporal dynamics of threats to big sagebrush ecological sites. The research was focused on invasion by annual exotic grasses and encroachment by woodlands. We sought to identify those areas that have had a persistent coverage of cheatgrass (Bromus tectorum) in big sagebrush ecological sites. We took advantage of the contrast in greenness between multi-temporal (within one year) remotely sensed vegetation indices captured in the spring and summer to find a distinct phenological sig

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Sagerfors, Jörgen. "Land-atmosphere exchange of CO₂, water and energy at a boreal minerotrophic mire /." Umeå : Dept. of Forest Ecology and Management, Swedish University of Agricultural Sciences, 2007. http://epsilon.slu.se/200704.pdf.

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Gunina, Anna [Verfasser], Davey [Akademischer Betreuer] Jones, Michaela [Gutachter] Dippold, and Roland [Gutachter] Bol. "Biotic and abiotic control of microbial community structure and activity in forest soils / Anna Gunina ; Gutachter: Michaela Dippold, Roland Bol ; Betreuer: Davey Jones." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2018. http://d-nb.info/116310907X/34.

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Hommeltenberg, Janina [Verfasser], Hans Peter [Akademischer Betreuer] Schmid, Matthias [Akademischer Betreuer] Drösler, Ralf [Akademischer Betreuer] Kiese, and Ankur [Akademischer Betreuer] Desai. "Biosphere-Atmosphere Exchange of CO2 and CH4 over Natural and Drained Bog Forest Ecosystems in Southern Germany / Janina Hommeltenberg. Gutachter: Matthias Drösler ; Ralf Kiese ; Ankur Desai ; Hans Peter Schmid. Betreuer: Hans Peter Schmid." München : Universitätsbibliothek der TU München, 2014. http://d-nb.info/106689714X/34.

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Örnbratt, Filip, Jonathan Isaksson, and Mario Willing. "A comparative study of social bot classification techniques." Thesis, Högskolan i Skövde, Institutionen för informationsteknologi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-16994.

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With social media rising in popularity over the recent years, new so called social bots are infiltrating by spamming and manipulating people all over the world. Many different methods have been presented to solve this problem with varying success. This study aims to compare some of these methods, on a dataset of Twitter account metadata, to provide helpful information to companies when deciding how to solve this problem. Two machine learning algorithms and a human survey will be compared on the ability to classify accounts. The algorithms used are the supervised algorithm random forest and the

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Mistry, Pritesh. "A Knowledge Based Approach of Toxicity Prediction for Drug Formulation. Modelling Drug Vehicle Relationships Using Soft Computing Techniques." Thesis, University of Bradford, 2015. http://hdl.handle.net/10454/14440.

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This multidisciplinary thesis is concerned with the prediction of drug formulations for the reduction of drug toxicity. Both scientific and computational approaches are utilised to make original contributions to the field of predictive toxicology. The first part of this thesis provides a detailed scientific discussion on all aspects of drug formulation and toxicity. Discussions are focused around the principal mechanisms of drug toxicity and how drug toxicity is studied and reported in the literature. Furthermore, a review of the current technologies available for formulating drugs for toxicit

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Ankaräng, Fredrik, and Fabian Waldner. "Evaluating Random Forest and a Long Short-Term Memory in Classifying a Given Sentence as a Question or Non-Question." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-262209.

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Natural language processing and text classification are topics of much discussion among researchers of machine learning. Contributions in the form of new methods and models are presented on a yearly basis. However, less focus is aimed at comparing models, especially comparing models that are less complex to state-of-the-art models. This paper compares a Random Forest with a Long-Short Term Memory neural network for the task of classifying sentences as questions or non-questions, without considering punctuation. The models were trained and optimized on chat data from a Swedish insurance company

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Park, Sung-Bin [Verfasser], Alexander Akademischer Betreuer] Knohl, Martin [Gutachter] Heimann, Dirk [Gutachter] [Hölscher, and Christoph [Gutachter] Gerbig. "An investigation of temporal variability of CO2 fluxes in a boreal coniferous forest and a bog in central Siberia : from local to regional scale / Sung-Bin Park ; Gutachter: Martin Heimann, Dirk Hölscher, Christoph Gerbig ; Betreuer: Alexander Knohl." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2019. http://d-nb.info/1191479684/34.

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Park, Sung-Bin Verfasser], Alexander [Akademischer Betreuer] Knohl, Martin [Gutachter] Heimann, Dirk [Gutachter] [Hölscher, and Christoph [Gutachter] Gerbig. "An investigation of temporal variability of CO2 fluxes in a boreal coniferous forest and a bog in central Siberia : from local to regional scale / Sung-Bin Park ; Gutachter: Martin Heimann, Dirk Hölscher, Christoph Gerbig ; Betreuer: Alexander Knohl." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2019. http://d-nb.info/1191479684/34.

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Johnson, Joseph S. "Foraging and Roosting Behaviors of Rafinesque's Big-eared Bat (Corynorhinus rafinesquii) at the Northern Edge of the Species Range." UKnowledge, 2012. http://uknowledge.uky.edu/animalsci_etds/5.

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Bat populations in the eastern United States are currently declining at unprecedented rates as a result of habitat loss, commercial wind energy development, and white-nose syndrome. Effective conservation of these declining populations requires knowledge of several aspects of summer and winter ecology, including daytime habitat use (day-roost selection and social behaviors), nocturnal habitat use (foraging habitat selection, prey selection, and prey abundance), and winter hibernation (torpor) patterns. This dissertation addresses these questions for Rafinesque’s big-eared bat (Corynorhinus raf

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Kohoutková, Martina. "Podnikatelský záměr - zřízení lesní školky." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2019. http://www.nusl.cz/ntk/nusl-399846.

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The diploma thesis deals with the creation of a realistic and applicable business plan for a new business – a forest nursery. The diploma work is divided into four main parts. Part one describes the objective and methodology of work. Followed by the second part, a theoretical one, in which the theoretical knowledge and the starting point needed to create the business plan are described and explained. In the third part, I analysed, with help of the theoretical knowledge, the current market situation and the internal and external business environment. The last part includes suggestions for the b

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Grierson, Greg Michael Jr. "Analysis of Amur honeysuckle Stem Density as a Function of Spatial Clustering, Horizontal Distance from Streams, Trails, and Elevation in Riparian Forests, Greene County, Ohio." Wright State University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=wright1621942350540022.

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George, Amy Kathryn. "Eucalypt regeneration on the Lower Murray floodplain, South Australia." Connect to this title online, 2004. http://hdl.handle.net/2440/37706.

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Vegetation along the River Murray floodplains has been shown to be in a severe state of decline. This decline is amplified by the impositions of river regulation. In South Australia, where vegetation losses have been great, regeneration is limited and may result in not only individual tree losses but also widespread population decline. This study aimed to examine the relationship between river flows and the regeneration process in populations of Eucalyptus camaldulensis and Eucalyptus largiflorens. The current structure of the populations was examined to determine if a viable number of varyi

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Jordan, Benjamin René. ""A modest manliness" the Boy Scouts of America and the making of modern masculinity, 1910-1930 /." Diss., [La Jolla] : University of California, San Diego, 2009. http://wwwlib.umi.com/cr/ucsd/fullcit?p3355738.

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Thesis (Ph. D.)--University of California, San Diego, 2009.<br>Title from first page of PDF file (viewed June 23, 2009). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references (p. 393-410).

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Liu, Julia, and Linnéa Lindahl. "Prediktion av efterfrågan i filmbranschen baserat på maskininlärning." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-235719.

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Machine learning is a central technology in data-driven decision making. In this study, machine learning in the context of demand forecasting in the motion picture industry from film exhibitors’ perspective is investigated. More specifically, it is investigated to what extent the technology can assist estimation of public interest in terms of revenue levels of unreleased movies. Three machine learning models are implemented with the aim to forecast cumulative revenue levels during the opening weekend of various movies which were released in 2010-2017 in Sweden. The forecast is based on ten att

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Persson, Alexandra. "Metoder för att undersöka effekterna av naturvårdshänsynen i skogsbruket, efter den senaste skogsvårdslagenMetoder för att undersöka effekterna av naturvårdshänsynen i skogsbruket, efter den senaste skogsvårdslagen." Thesis, Linköping University, Department of Physics, Chemistry and Biology, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-59287.

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<p>In 1994 a new Forestry Act was accepted in Sweden. One of the aims of the law is to raise consideration forpreservation of biodiversity. Since the new law got accepted and some time has passed, there now lie someinterest in examining whether the law has been effective towards its purpose. Methods suitable for analysishave been examined during this study. The content of this pilot study is based around five parameters whichcan be used to validate the effects of the new law. The field study were executed in Orsa, Dalarna, Sweden ina managed forest where last clearcut was performed after 1994.

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Aparicio, Vázquez Ignacio. "Venn Prediction for Survival Analysis : Experimenting with Survival Data and Venn Predictors." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-278823.

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The goal of this work is to expand the knowledge on the field of Venn Prediction employed with Survival Data. Standard Venn Predictors have been used with Random Forests and binary classification tasks. However, they have not been utilised to predict events with Survival Data nor in combination with Random Survival Forests. With the help of a Data Transformation, the survival task is transformed into several binary classification tasks. One key aspect of Venn Prediction are the categories. The standard number of categories is two, one for each class to predict. In this work, the usage of ten c

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Нємцев, В. С. "Інформаційна технологія кваліфікаційного аналізу веб-сторінок". Master's thesis, Сумський державний університет, 2019. http://essuir.sumdu.edu.ua/handle/123456789/76548.

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Були розглянуті основні концепції класифікації вебсторінок, такі як вибір та вилучення ознак. У цій роботі було представлено кілька алгоритмів класифікації веб-сторінок і метрик, які використовуються для оцінки ефективності класифікації, описана структура даних та метод збору даних. На підставі зібраної інформації був запропонований метод класифікації вебсторінок, який досяг високих показників. Крім хороших класифікаторів були знайдені ознаки, які можуть підвищити ефективність класифікації. Було проведено декілька експериментів з різними характеристиками, для підготовки класифікаторів та

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Chuchuk, Olga. "Optimisation de l'accès aux données au CERN et dans la Grille de calcul mondiale pour le LHC (WLCG)." Electronic Thesis or Diss., Université Côte d'Azur, 2024. http://www.theses.fr/2024COAZ4005.

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La Grille de calcul mondiale pour le LHC (WLCG) offre une infrastructure informatique distribuée considérable dédiée à la communauté scientifique impliquée dans le Grand Collisionneur de Hadrons (LHC) du CERN. Avec un stockage total d'environ un exaoctet, le WLCG répond aux besoins de traitement et de stockage des données de milliers de scientifiques internationaux. À mesure que la phase du High-Luminosity LHC (HL-LHC) approche, le volume de données à analyser augmentera considérablement, dépassant les gains attendus grâce à l'avancement de la technologie de stockage. Par conséquent, de nouvel

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Heinke, Simon, and Marcus Åberg. "Implementering av maskinginlärningsmodeller för detektering av ett objekt baserad på endimensionell elektromagnetisk strålningsdata." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-280887.

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Clinical trials are experiments or observations on a patient’s responses of different medical treatments to cure diseases. Such trials are heavily regulated and must achieve a certain quality standard of the trial and clinical adherence is a determining factor on the success of a study. However, it has historically been difficult to systematically follow and understand patient adherence to medical ordinations, predominately due to lack of proper tools. One new type of tools is a digital pillbox that can be used to supply pills to participants in clinical trials. This paper examines implementin

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Pratte, Steve. "Les tourbières ombrotrophes en tant qu'archives de la variabilité des apports de poussières atmosphériques holocènes au Québec boréal - Implications paléoenvironnementales et paléoclimatiques." Thesis, Toulouse, INPT, 2016. http://www.theses.fr/2016INPT0044/document.

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Les poussières atmosphériques naturelles jouent un rôle complexe dans le système climatique global étant à la fois un facteur affectant le climat et variant en fonction de ce dernier. Notre compréhension des différentes interactions entre les poussières atmosphériques et le climat est limitée par l’importante variabilité spatiale et temporelle des celles-ci. À l’aide de tourbières ombrotrophes, la variabilité spatiale et temporelle des dépôts de poussières atmosphériques holocènes au Québec boréal fut caractérisée en lien avec les fluctuations climatiques. Les flux de poussières atmosphériques

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