1,219 research outputs found
Tagging of Biomedical Articles on CiteULike: A Comparison of User, Author and Professional Indexing
No full textThis paper examines the context of online indexing from the viewpoint of three different groups: users, authors, and professional indexers. User tags, author keywords and descriptors were collected from academic journal articles, which were both indexed in Pubmed and tagged on CiteULike, and analysed. Descriptive statistics, informetric measures, and thesaural term comparison shows that there are important differences in the use of keywords between the three groups in addition to similarities which can be used to enhance support for search and browse. While tags and author keywords were found that matched descriptors exactly, other terms which did not match but provided important expansion to the indexing lexicon were found. These additional terms could be used to enhance support for searching and browsing in article databases as well as to provide invaluable data for entry vocabulary and emergent terminology for regular updates to indexing systems. Additionally, the study suggests that tags support organisation by association to task, projects and subject while making important connections to traditional systems which classify into subject categories
Ionic liquids with increased hydrophylicity
No full textJonu šķidrumi ar paaugstinātu hidrofīlumu. Markus M., zinātniskais vadītājs Dr. h. ķīm., prof. Zicmanis A. Bakalaura darbs, 47 lappuses, 22 attēli, 14 tabulas, 36 literatūras avoti, 1 pielikums. Latviešu valodā.
Darbā sintezēti jonu šķidrumi ar atšķirīgu to katjonu hidrofīlumu. Ar 1H KMR un 13C KMR metodi pierādīta struktūru pareizība un novērtēta to tīrība. Pārbaudīta to termiskā stabilitāte ar termogravimetrijas metodi. Sintezētajos jonu šķidrumos šķīdināta celuloze, un pārbaudīta to spēja ekstrahēt bioloģiski aktīvas vielas no augu valsts produktiem.
CELULOZE, JONU ŠĶIDRUMU SINTĒZE, KODOLMAGNĒTISKĀS REZONANSES SPEKTROSKOPIJA, TERMOGRAVIMETRIJA, OGĻHIDRĀTU EKSTRAKCIJA.Ionic liquids with increased hidrophilicity. The author Markus M., supervisor Dr. habil. chem., prof. Zicmanis A. Bachelor thesis, 47 pages, 22 figures, 14 tables, 36 literature references, 1 appendix. In Latvian.
In this work, ionic liquids with various hydrophilicity of cation were synthesized. Reaction products and their purity were tested using 1H NMR and 13C NMR spectroscopy. The thermal stability of ionic liquids was investigated with thermogravimetry. Cellulose was dissolved in synthesized ionic liquids, and these ionic liquids were tested as eluents for the extraction of biologically active substances from plants.
CELLULOSE, SYNTHESIS OF IONIC LIQUIDS, NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY, THERMOGRAVIMETRY, EXTRACTION OF HYDROCARBONS
Acupuncture and sports medicine : effects and application perspectives
No full textVor dem Hintergrund der gestiegenen medizinischen und sozioökonomischen Relevanz von Akupunktur und Laserakupunktur werden im Rahmen der vorliegenden Arbeit Anwendungsfelder und Forschungsperspektiven in der präventiven und rehabilitativen Sportmedizin skizziert. Hierzu zählen insbesondere die Therapie von Sportverletzungen und Sportschäden, die Steigerung der körperlichen Leistungsfähigkeit, die Unterstützung und Förderung der Regeneration sowie die Vorbeugung von belastungsinduziertem Asthma. Aufbauend auf den aktuellen Forschungsstand werden eigene Originalarbeiten vorgestellt, die sich mit der Evaluation spezifischer Effekte der Akupunktur und Laserakupunktur befassen.Against the background of the increasing medical and socioeconomic importance of acupuncture and laser acupuncture, the present work aims at outlining scientific and practical applications in fields related to preventive and rehabilitative sports medicine. These include, in particular, the treatment of acute and chronic sports injuries, the enhancement of physical performance, the promotion of recovery, as well as the prevention of exercise-induced asthma. Based on current research, the author presents his original investigations dealing with specific effects of acupuncture and laser acupuncture
Synthesis and analysis of physicochemical properties of sulphonated poly(etherether ketone) and zirconium nanoparticles composite membranes
No full textSulfurēta poli(ēterēterketona) un cirkonija hidrogēnfosfāta nanodaļiņu kompozītmembrānu sintēze un to fizikālķīmisko īpašību analīze. Markus M., zinātniskais vadītājs Dr.ķīm. Guntars Vaivars, konsultants Dr. h. ķīm., prof. Andris Zicmanis. Maģistra darbs, 57 lappuses, 94 attēli, 9 tabulas, 51 literatūras avots, 3 pielikumi. Latviešu valodā. Darbā sintezētas modificēta poli(ēterēterketona) membrānas un to kompozītmembrānas ar cirkonija hidrogēnfosfāta daļiņām, ko paredzēts izmantot degšūnās. Īpaša uzmanība veltīta tādas kompozītmateriāla koncentrāciju attiecību atrašanai, kas nodrošina kvalitatīvu membrānu iegūšanu ar uzlabotām īpašībām tālākas izmantošanas iespējām, kā arī pētīta ultraskaņas ietekme uz membrānas struktūru un daļiņu izmēru kompozītmateriālā. Membrānām veikta skenējošās elektronmikroskopijas analīze, rentgenstaru difraktometrijas analīze un šķīduma daļiņu izmēra un izkliedes analīze, lai izvērtētu iegūto kompozītmembrānu kvalitāti.Synthesis and analysis of physicochemical properties of sulphonated poly(etherether ketone) and zirkonium nanoparticles composite membranes. The author Madara Markus, supervisor Dr. Chem. Vaivars G. Consultant Dr. h. chem., prof. Zicmanis A. Master paper, 57 pages, 94 figures, 9 tables, 51 literature references, 3 apposition. In Latvian. Modified poly(etheretherketone) membranes and zirconium nanoparticles composite membranes usable for fuel cells were synthesized. In this paper special attention was devoted to find a composite concentration ratio, which provides high-qualiy membranes acquition with improved characteristics, as well as effect of use of ultrasonic on structure of composite membranes. Analysis of membrane surface with SEM was made, XRD analysis to find out structure of membranes was made and particle size distribution of composite solution was measured, in order to assess the quality of the resulting composite membranes
The sense of a beginning : Bakhtinian dialogic criticism on 'the gospel' in Mark.
No full textContemporary literary approaches have caused paradigm shifts in Biblical Studies in the last two decades as it appears in a great deal of Markan studies using narrative, reader-response, deconstructive, feminist, and new historicist approaches. However, literary studies on the Gospel of Mark have not taken into account theoretical questions underlying those approaches. As a result biblical critics are driven by new trends without ever having a chance to examine the critical baggage of the approaches. Consequently, there is a gap of communication between the old and the new one. Therefore this thesis is an attempt to meet the need of enhancing the quality of critical endeavour in biblical studies. In the light of most recent competing critical theories of literature, the first contribution of this thesis is the methodological finding that Bakhtinian dialogic criticism contains the most profound philosophical and practical foundations for solving some crucial theoretical problems in contemporary literary theories. It is a critique to a Saussurian linguistic system of language which becomes the very foundation of modern and postmodern literary criticism. Bakhtinian literary theory shifts the foundation of literary criticism on linguistic signs into the creative activity of the socio-cultural production of human communication. The shift into socio-cultural reality of language communication makes the notion of 'genre' very important to unlock the problem of text and context in literary studies. Since the Gospel of Mark has fascinated most literary critics in Biblical Studies, the problem of 'genre' of this gospel is chosen as the focus of this study. Secondly, as no agreement is reached as to what 'genre' the Gospel of Mark belongs, this thesis makes its contribution to the discussion by locating the problem of 'genre' of Mark in the context of genre theories and argues that the Bakhtinian suggestion to find genre in the socio-cultural sphere by analysing artistic intercourse between narrative agents in Mark has freed the competing analysis from the unresolved problem between the kerygmatic (content oriented) approach and the analogical (form oriented) approach. To achieve finding 'genre' in the socio-cultural sphere, this thesis focuses on Bakhtinian analysis of the process of artistic intercourse between narrative agents. The narrative communicative interrelationships between narrative agents is constructed in this thesis as a 'stereophonic' Bakhtinian model of dialogic communication. This model is an original contribution of this thesis for revising the traditional two dimensional model of narrative communication. Based on this dialogical model of communication, a special role is given to the Bakhtinian 'author-creator' in the realization process of genre through the interaction of polyphonic voices. Through the interaction of voices of the author-artist and the hero we are led to discover a relatively stable type of portraying and controlling reality in Mark, known as the genre of Roman 'satire'. The closest literary affinity is Satyrica by Petronius. This narrative strategy of 'satire' in Mark has its root in the prophetic discourse of the Old Testament which is saturating the speech of the narrator, John the Immerser, the centurion, the people, and even Jesus. Finally, the whole search for Markan 'genre' culminates in the analysis of the realization of genre through the analysis of Bakhtinian chronotope. The reality of the genre of Mark is its social reality that is in its role as dpxrj/ 'beginning'. As the Gospel of Mark proclaims itself as 'a beginning', it defines its claim of socio-cultural 'authority' in early Christianity. It is this 'sense of beginning' which enables the narrating and the narrated world of Mark to interact dialogically
Connecting the time evolution of the turbulence interface to coherent structures - Corrigendum
No full textThe above mentioned article was submitted with incorrect author affiliations for George Haller and Markus Holzner. This has since been rectified in the online PDF and HTML copies.(J. Fluid Mech. (2020) 898 (A3) DOI: 10.1017/jfm.2020.414)</p
Genome-wide association study identifies a variant in HDAC9 associated with large vessel ischemic stroke
No full textGenetic factors have been implicated in stroke risk, but few replicated associations have been reported. We conducted a genome-wide association study (GWAS) for ischemic stroke and its subtypes in 3,548 affected individuals and 5,972 controls, all of European ancestry. Replication of potential signals was performed in 5,859 affected individuals and 6,281 controls. We replicated previous associations for cardioembolic stroke near PITX2 and ZFHX3 and for large vessel stroke at a 9p21 locus. We identified a new association for large vessel stroke within HDAC9 (encoding histone deacetylase 9) on chromosome 7p21.1 (including further replication in an additional 735 affected individuals and 28,583 controls) (rs11984041; combined P = 1.87 × 10<sup>−11</sup>; odds ratio (OR) = 1.42, 95% confidence interval (CI) = 1.28–1.57). All four loci exhibited evidence for heterogeneity of effect across the stroke subtypes, with some and possibly all affecting risk for only one subtype. This suggests distinct genetic architectures for different stroke subtypes
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Public security in the negotiated state ::policing in Latin America and beyond /
No full textThis book seeks to overcome the lack of theoretically informed empirical studies on policing and state-society relations in areas of limited statehood. By drawing on in-depth field research in Mexico City, Markus-Michael Muller offers an insightful analysis of the negotiated character of the Mexican state and its impact on policing. Despite the resulting un-public nature of Mexican policing, he demonstrates that Mexico City residents do not abandon the state as a security provider but continue to turn to the state, in a variety of formal and informal ways and even have normative expectations regarding state-centred security provision. By putting these findings in perspective with other related cases in Latin America, Africa and Asia, the author provides a new cutting-edge perspective on the material and symbolic relevance of the state in areas of limited statehood
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