706 research outputs found
Calculating All That Jazz: Linking Technical Specifications to the Management of Digitization Projects
No full textThe purpose of this session is to educate librarians and archivists about the technical aspects of the digitization process and demonstrate how deeper understanding of those aspects can be used to evaluate the appropriateness of digitization standards, project scope, quality of digitization equipment and storage needs for digitization projects involving photographs and documents. Most scholarship on archival-quality digitization has focused on either elements of digital library project management or on technical specifications and how to digitize materials. "Calculating All That Jazz" focuses on presenting a formula for calculating digital storage space based on analog still images and documents, demonstrating how deeper understanding of the technical elements of digitization in the formula applies directly to crucial project management considerations
Figures Don't Lie: Spatial Humanities and Technology as Critical Thinking Tools
No full textThis presentation demonstrates the potential use of spatial humanities as both a critical thinking exercise and a computational tool in digital humanities pedagogy. “Figures Don’t Lie” presents a map of the United States that labels each state as a foreign nation according to the correlation between the GDPs of each state and their assigned countries. The map may spark classroom discussions about a range of humanities topics. Revealing the map’s underlying data shows how facts can be spun and helps students understand how the “facts” presented in the media may not be what they appear.Presented at Rutgers University's "Digital Humanities Showcase: New Methods and New Media" on January 29, 2014 (New Brunswick, N.J.)
Espousing Ezili: Images of a Lwa, Reflections of the Haitian Woman
No full textThis article examines the iconography of the two main female divinities in Haitian Vodou, Ezili Danto and Ezili Freda, using common chromolithographs of each personality. Images of the Ezilis are analyzed in the context of visual culture to discern how iconography informs viewers about the political position of Haitian women of the past and present. To realize this goal, the author addresses some of the complex dynamics that shaped the lives of colonial Haitian women as well as the contemporary factors affecting women's lives today.This article was originally published in Journal of Haitian Studies, http://www.research.ucsb.edu/cbs/publications/johs/Peer reviewe
Jim Wallis, Author of God's Politics, to speak at UMC
No full textLemos, Krista. (2005). Jim Wallis, Author of God's Politics, to speak at UMC. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/220557
Calculating All that Jazz: Accurately Predicting Digital Storage Needs Utilizing Digitization Parameters for Analog Audio and Still Image Files
No full textLibrary professionals and library assistants who lack computer science or audiovisual training are often tasked with writing digital project proposals, grant applications or rationale to fund digitization projects for their institutions. Much has been written about digitization projects over the last two decades; digital storage has been highlighted as a central feature of any digitization project, especially the need to purchase additional storage mechanisms to house digitized collections. What is missing from the library science literature is a method for reliably calculating digital storage needs on the basis of parameters for digitizing analog materials such as documents, photographs, and sound recordings in older formats.Peer reviewe
Legacies and Lifecycles: Digitizing Oral History Collections at Rutgers University
No full textBoth the Institute of Jazz Studies (IJS) and Special Collections and University Archives (SC/UA) have undertaken projects to digitize legacy oral history collections in collaboration with Technical and Automated Services. Although the goals of the projects were the same, the teams working on them faced different issues and challenges regarding formats, rights, and delivery as they moved through the digital project life cycle. The solutions to these required different approaches.Poster presented at Data Driven: Digital Humanities in in the Libraries conference June 22, 2014, Charleston, SC.Peer reviewe
Teadusuuringutest rakendusteni–optiliselt keerukate vete seire satelliitsensori MERIS/ENVISAT abil
No full textVäitekirja elektrooniline versioon ei sisalda publikatsioone.Järved ja rannikuveed pakuvad olulisi ökosüsteemi teenuseid. Tagamaks veekeskkondade seire ja ökoloogilise seisundi hindamise on Euroopa Liidus loodud mitmeid direktiive ja regionaalseid konventsioone. Kuna vee kvaliteet võib olla muutlik nii sesoonselt kui ruumiliselt võimaldab kaugseire efektiivset seire meetodit, mille abil saab hinnata vee kvaliteedi hetkeolukorda, muutusi võrreldes varasema seisundiga ning seda ka veekogudes, mis ei ole kaetud tavaseireprogrammide raames. Käesolevas töös uuriti esimese spetsiaalselt optilistelt keerukate vete seireks loodud satelliitsensori MERIS/ENVISAT andmete kasutamisvõimalusi viie Põhja Euroopa järve ja kahe Läänemere rannikuala bio-optiliste andmete alusel.
Olemasolevate MERIS standardalgoritmide õigsuse hinnang näitas, et need ei anna täpseid tulemusi veekogudes, kus on kõrge lahustunud orgaanilise aine ja klorofüll a hulk. Fütoplanktoni parameetrite (klorofüll a, sinivetikate biomass, fütoplanktoni biomass) hindamiseks kasutati punases ja lähisinfrapunases spektriosas töötavat spektraalset indeksit, mis kalibreeriti kohalikesse oludesse. Kuna indeks on rakendatav MERIS L1b andmetele, lubab see kvantitatiivselt hinnata vee kvaliteedi parameetreid sinivetika õitsengute korral, mille puhul MERIS standardalgoritmid ei tööta. Hindamaks kaugseire andmetest veealust valgusvälja, millest sõltub veealuste organismide elutegevus, loodi kaalufunktsioonidel põhinev kombineeritud kanalisuhte algoritm, mis selgemate vete puhul kasutab kanalite 490/709 suhet ning sogasemate puhul 560/70 ning hindab edukalt valguse difuusset nõrgenemiskoefitsienti, Kd(490), satelliidiandmetest. Secchi sügavuse hindamiseks andis parimaid tulemusi algoritm, mis võttis pikselhaaval sisendiks satellidiandmetest arvutatud diffusse ja summaarse nõrgenemiskoefitsiendi ning peegeldusteguri väärtused üle nähtava laineala.
Töös arendatud algoritmid rakendati MERIS arhiivi 2002–2011 andmetele hindamaks erinevate järvede ökoloogilist seisundit nii nagu on nõutud EL veepoliitika raamdirektiivi poolt. Tulemused näitasid, et kaugseire andmeid saab kasutada täiendava infoallikana ökoloogilise seisundi hindamisel. Väljatöötatud algoritmid ja rakendused on kohandatavad 2016. aasta veebruaris tööd alustanud Sentinel-3/OLCI andmetele, mille abil on optiliselt keerukate vete seire kosmosest võimalik vähemalt aastani 2029.Lakes and coastal areas provide a wide range of essential ecosystem services. Various directives and regional conventions have been established to ensure the monitoring and assessment of the ecological status of the aquatic ecosystems. Since water quality can have rapid changes in temporal and spatial scale, remote sensing can provide a cost-effective approach to assess the current and derive historic water quality information also for waterbodies that have not been part of conventional monitoring programmes.
This thesis presents research about applications for MERIS/ENVISAT data in order to monitor optically-complex aquatic environment such as inland and coastal waters on the basis of bio-optical data from five North European lakes and two Baltic Sea coastal sites. The validation of MERIS standard water quality products indicated their unsuitability for waters with high amounts of chlorophyll a and humic substances. To map the phytoplankton parameters (CHL, cyanobacterial biomass, phytoplankton biomass) a spectral index which operates on red and near-infrared bands was used and calibrated to local conditions. So, this index allows derivation of the water quality parameters quantitatively in case of highly scattering cyanobacterial blooms, which is not possible with standard algorithms. To estimate underwater light field via transparency, an empirical combined band ratio algorithm was developed which switches from various band ratios based on the water transparency and determines the diffuse attenuation coefficient Kd(490) with high accuracy. Additionally, Secchi depth can be also estimated reliably via satellite derived inputs of diffuse and total beam attenuation coefficients and reflectance over visible wavelengths.
The developed algorithms were applied on the MERIS archive from 2002 to 2011 to estimate the ecological status in lakes as required by the EU Water Framework Directive which showed that remote sensing products could be used as an additional source of information for assessment and reporting purposes. Despite the study in this thesis is based on the MERIS/ENVISAT data, the developed algorithms and methods can be applied on new Sentinel3/OLCI data that will provide EO data over optically complex waters at least until 2029
Didactic play to stimulate speech development in children between the ages of five and six
No full textDarba nosaukums: Didaktiskās rotaļas piecus līdz sešus gadus vecu bērnu runas attīstības sekmēšanai. Darba autore: Krista Ašurova Darba zinātniskā vadītāja: doc. Līga Āboltiņa Darba saturs: 44 lpp., izmantoti 25 avoti, 17 attēls Pētījuma mērķis: Pētīt piecus līdz sešus gadus vecu bērnu runas sekmēšanu, izmantojot didaktiskās rotaļasTitle of the research: Didactic games in development of 5 to 6 year old children’s speech abilities. Research author: Krista Ašurova Research supervisor: doc. Līga Āboltiņa The research consists of 44 pages, 25 analyzed sources, 17 pictures Goal of the research: Analyze 5 to 6 year old children’s speech development with the use of didactic games
Digital Imaging Specification and the Management of Digital Storage Needs
No full textA handout based on "Calculating All That Jazz: Linking Technical Specifications to the Management of Digitization Projects."Peer reviewe
Sentinel-3/OLCI applications for European Union Water Framework Directive (2000/60/EC) implementation on phytoplankton parameters
No full textMagistritöö
Keskkonnakorralduse ja –poliitika õppekavalEuroopa Parlamendi ja Nõukogu veepoliitika raamdirektiiv 2000/60/EÜ kehtestas kõigile Euroopa Liidu liikmesriikidele ülesande viia kõigi üle 50 ha veepeegliga veekogude kvaliteet vähemalt tasemeni „hea“ aastaks 2015, tähtaega pikendati hiljem aastani 2027. Veekogude ökoloogilise seisundi hindamiseks seiratakse VRD raames muuhulgas fütoplanktoni kvaliteednäitajaid (fütoplanktoni biomass, klorofüll α kontsentratsioon ja sinivetikate osakaal fütoplanktonis).
Käesolevas magistritöös uuriti Sentinel-3/OLCI võimalikke kasutusviise veepoliitika raamdirektiivi (2000/60/EÜ) rakendamiseks fütoplanktoni kvaliteedinäitajate seires. Magistritöö eesmärk oli hinnata OLCI ja in situ mõõtmiste tulemuste vastavust, sinivetikate ja veeõitsengute parameetreid Peipsi järves 2019. aastal ja kaugseire kasutamise potentsiaali veekogu kvaliteediklassi määramisel.
Töös kasutati Peipsi järve pikaajalisi seireandmeid aastatest 1983 – 2020 (saadud Limnoloogiakeskuse andmebaasist), Peipsi järve hüdrobioloogilise seire andmeid aastatest 2016 – 2020 (saadud Keskkonnaagentuuri KESE andmebaasist) ja Sentinel-3/OLCI andmeid aastatest 2016 – 2020 (saadud Maa-ameti geoportaalist ESTHub). OLCI andmetest leiti fütoplanktoni kvaliteedinäitajate väärtused kasutades MCI (Maximum Chlorophyll Index) algoritmi. Andmete valideerimiseks võrreldi neid sama päeva in situ tulemustega seirepunktidest aastatel 2016 – 2020. Veeõitsengud OLCI andmetes määrati kolmel meetodil (kahel meetodil klorofüll α mediaani alusel erinevatest ajavahemikest ja sinivetikate protsendi meetodil). OLCI 15 päeva keskmistatud andmete põhjal koostati klorofüll α ja sinivetikate protsendi 2019. aasta dünaamika kaardid, 2019. aasta keskmiste väärtuste kaardid ja järve ökoloogiliste kvaliteediklasside kaardid hetkel kehtivate ja välja pakutud uute klassipiiride alusel.
Käesoleva töö tulemused näitavad, et kaugseire meetoditel saadud andmed ja ökoloogilise kvaliteediklassi hinnangud on vastavuses in situ tulemuste ja nendel põhinevate hinnangutega. Veeõitsengute parameetrite hindamiseks sobivad paremini klorofüll α pikaajalistel mediaanidel põhinevad meetodid. OLCI andmed sobivad hästi täiendama fütoplanktoni in situ seiret ja aitavad saavutada VRD eesmärke.The European Parliament and Union Water Framework Directive 2000/60/EC (WFD) established that all bodies of water with surface area greater than 50 ha in the European Union member states must achieve at least „good“ ecological status by the year 2015, which was extended to 2027. In scope of WFD many water quality indicators are monitored, including phyoplankton quality elements (phytoplankton total biomass, chlorophyll α concentration and percentage of cyanobacteria of the phytoplankton biomass).
This thesis explores the potential applications of Sentinel-3/OLCI instrument for water quality monitoring in scope of Water Framework Directive (2000/60/EC) application. The purpose of the thesis was to evaluate the correspondence of phytoplankton monitoring results from OLCI and in situ methods, cyanobacteria and algae bloom parameters in Lake Peipsi on year 2019 and the potential of remote sensing methods for determining the ecological quality class of the lake.
Long term monitoring data was used for Lake Peipsi from 1983 to 2020 (the Center of Limnology’s database), data from Lake Peipsi hydrobiological monitoring reports from 2016 to 2020 (from the Environmental Agency’s database KESE) and Sentinel-3/OLCI data from 2016 to 2020 (Land Board satellite database ESTHub). Values for phytoplankton quality indicators were calculated from OLCI data using MCI (Maximum Chlorophyll Index) algorithm. For validation the data was compared with same day in situ measurements from the relevant monitoring sites on years 2016 – 2020. Three methods were used for determining algae blooms in the OLCI data – two methds based on chlorophyll α long term median values using different timeframes and one method based on cyanobacteria percentage of the total phytoplankton biomass. 15 day rolling averages were used to compile maps to visualize the dynamics of chlorophyll α and cyanobacteria % in 2019. In addition, maps for average values for both parameters and showing phytoplankton ecological quality classification were produced for the year 2019. Ecological quality maps were compiled based on the limit values currently in effect as well as proposed new limist.
The thesis concluded that phytoplankton parameters and ecological quality classification were in accordance with in situ results and the quality evaluation based on them. Methods based on long time mean chlorohyll α values were more suitable for determining the extent of algae blooms. OLCI data is a good addition to information gathered from in situ measurements and using remote sensing methods can improve the quality of phytoplankton monitoring, as well as help reaching the goals of WFD
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