1,737,528 research outputs found
Fluxes of Thorium 232, excess Barium and Iron from ODP Site 202-1240
No full text²³⁰Th-normalized fluxes of ²³²Th, Baₓₛ and Fe from ODP 1240 (0.02°N, 86.46°W; 2.9 km) in the eastern equatorial Pacific Ocean
Adsorption Studies Of Aromatic Compounds In Aqueous Solution Onto Activated Carbons.
Get PDFFokus penyelidikan ini adalah untuk menyelidik penyingkiran sebatian aromatik; benzena, toluena dan o-xylena daripada larutan berair melalui penjerapan ke atas karbon teraktif komersil; Norit GAC 1240 (N1240) dan Calgon Filtrasorb 300 (F300).
The focus of this research was to investigate the removal of aromatic compounds; benzene, toluene and o-xylene from aqueous solutions by adsorption on commercial activated carbons; Norit GAC 1240 (N1240) and Calgon Filtrasorb 300 (F300)
Resolución CSDEyVE Nº 03/2019. Refrendar la Resolución Rectoral N° 1240/18
No full textFil: Consejo Superior de Docencia, Extensión y Vida Estudiantil (D). Universidad Nacional de Río Negro. Río Negro, ArgentinaResolución CSDEyVE Nº 03/2019. Refrendar la Resolución Rectoral N° 1240/18. Que aprueba las modificaciones del plan de estudio de la carrera de Especialización en Estudios de Género para la Intervención Profesionalfals
Authigenic uranium and stable isotopes of Globobulimina spp. and Cibicidoides wuellerstorfi from ODP Sites 202-1240 and 138-846 and excess barium fluxes from Site 202-1240
No full textAuthigenic uranium (aU), and stable isotope data of Globobulimina spp. and C. wuellerstorfi from ODP Sites 1240 and 846. Excess Barium (Baxs) fluxes from ODP 1240.
Reconstructions of past changes in dissolved oxygen concentrations in the abyssal ocean are of interest to paleoceanographers because of their potential to help characterize and quantify the transfer of carbon between the atmosphere and the deep ocean. This potential, derived from the stoichiometric relationship between oxygen consumption and the regeneration of organic matter, has recently been expanded by compilations of core top observations for two proxies, the δ¹³C gradient between coeval infaunal and epifaunal benthic foraminifera (Δδ¹³C), and biomarker preservation. Here, we review these newer proxies, and the more established redox proxy authigenic uranium (aU), to critically evaluate our understanding of the controls on proxy production and preservation. We locate our work in the equatorial Pacific, presenting both new data and a compilation of existing records based on thirty-two sediment cores to draw semi-quantitative conclusions about bottom water oxygen and respired carbon concentrations over the last glacial period. We find that the biogeochemical limitations on these proxies may be more substantial than previously appreciated, and therefore suggest several best practice recommendations for their application. Despite the recognized data limitations, the compilation identifies the glacial Pacific Ocean as a dominant sink for CO₂ at all depths below the modern oxygen minimum zone. Our review emphasizes the importance of multiproxy reconstructions, informed by site-specific records of paleoproductivity, in drawing coherent, internally consistent conclusions about glacial ocean oxygenation and carbon storage
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Siège de Carcassonne. 1240.
No full textDoüet d'Arcq Louis. Siège de Carcassonne. 1240.. In: Bibliothèque de l'école des chartes. 1846, tome 7. pp. 363-379
Käyttöohjeen laadinta UVmini-1240 -spektrofotometrille
Get PDFAihe tälle projektiluonteiselle opinnäytetyölle saatiin Oulun seudun ammattikorkeakoulun sosiaali- ja terveysalan yksiköltä bioanalytiikan koulutusohjelmalta. Oulun seudun ammattikorkeakoulun sosiaali- ja terveysalan yksikköön hankittiin UVmini-1240 -spektrofotometri keväällä 2010. Koska kyseessä oli uusi laite, jolle ei ollut vielä tehty käyttöohjetta, tarvittiin sille toimiva ja testattu käyttöohje.
Tulostavoitteena tässä projektissa oli laatia UVmini-1240 -spektrofotometrille käyttöohje, joka sisältää työohjeen proteiinille. Käyttöohje on tarkoitettu ensisijaisesti ensimmäisen vuoden bioanalytiikan opiskelijoiden oppimista tukemaan, koska spektrofotometri on ensimmäinen laite, jota he käyttävät. Toiminnallisena tavoitteena on, että käyttöohjeen avulla käyttäjät tietävät, kuinka laitetta käytetään ja huolletaan, miten kontrollit tehdään, ja että käyttäjät osaavat tehdä proteiinimäärityksen proteiinityöohjeella. Tämän opinnäytetyön tekijöiden oppimistavoitteena oli perehtyä laadunhallintaan, laatustandardeihin ja laatusuosituksiin laitteiden ja työohjeiden osalta. Lisäksi oppimistavoitteena oli perehtyä UVmini-1240 -spektrofotometriin ja sen toimintaperiaatteisiin.
Käyttöohjeen laadinnassa otettiin huomioon SFS-EN ISO/IEC 17025 (testaus- ja kalibrointilaboratorioiden pätevyys: yleiset vaatimukset)-ja SFS-EN ISO 15189 (Lääketieteelliset laboratoriot: erityisvaatimukset laadulle ja pätevyydelle) -standardit. Apuna käytettiin myös ISO 9000 -standardia (laadunhallintajärjestelmät: perusteet ja sanasto). Tuotteen esitestaajina toimivat ensimmäisen vuoden bioanalyytikko-opiskelijat, joilta saadun palautteen perusteella käyttöohje viimeisteltiin.
Tuotekehitysprojektin lopputuloksena valmistui käyttöohje UVmini-1240 -spektrofotometrille. Käyttöohje sisältää lyhyen kuvauksen UV/VIS-spektrofotometrista, laitteen käyttöohjeen, proteiinimäärityksen työ- ja mittausohjeen, käyttölomakkeet sekä tiedot kalibroinnista, kontrolleista ja huolloista.
Käyttöohjeen avulla varmistetaan UVmini-1240 -spektrofotometrin yhtenäinen käyttö sekä edistetään laadunhallintaa tukevaa työskentelyä. Tulevien bioanalyytikkojen laitteiden tuntemus, laitteiden käyttäminen, huoltaminen, määritysten tekeminen ja laadunvarmentamisen hallitseminen ovat osaltaan turvaamassa laboratorion asiakkaille luotettavia tuloksia.The topic for this thesis project was given to us by the teachers in Biomedical Laboratory Science Department of Oulu University of Applied Sciences. A new UVmini-1240 spectrophotometer was purchased for Oulu University of Applied Sciences in the spring of 2010. The spectrophotometer was new and there was a need for a usable and tested Finnish User Manual.
The purpose of this thesis project was to produce a User Manual for UVmini-1240 spectrophotometer. The manual would help students and other users operate the spectrophotometer correctly. The practical aims were to ensure that users know how to use the spectrophotometer correctly, and how to maintain it. The aims were also to make sure that users know when controls are done and how they can do a protein determination with the help of the manual. The learning objectives were to learn about quality management, quality standards and quality recommendations. One learning objective was also to get familiar with the UVmini-1240 spectrophotometer and learn its working principle.
The User Manual was made in accordance with SFS-EN ISO/IEC 17025, SFS-EN ISO 15189 and ISO 9000 standards. A preliminary test with the manual was made together with first year biomedical students who had started their studies in the autumn of 2009. The manual got its final form on the basis of the feedback received from students.
The User Manual for UVmini-1240 spectrophotometer was made on the basis of this thesis project. The User Manual includes a short description about the UV/VIS spectrophotometer, User Manual for the device, instructions for making protein determination, forms and information about calibrations, controls and maintenance.
The right use of the UVmini-1240 spectrophotometer is ensured with the help of the User Manual.
The User Manual will also improve the working methods which support quality management. Biomedical laboratory scientists’ knowledge about different laboratory devices and correct use of those devices ensure reliable results for the clients of laboratories
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