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Czech Scientists Database
Pejšová, Petra ; Hvězdová, Lenka
In our poster we will introduce the idea of creating a database of Czech scientists. The scientific community, professionals, government and the corporate sector need easy access to specific information on scientific personalities and related projects and grants. This demand comes from a member of the Czech Research, Development and Innovation Council with a goal to link research and commercial sectors in the area of human resources and support fast transmission of knowledge into practical fields. The system will facilitate contacts with scientists in specific fields. A scientist’s record should contain information about the institution, his/her current and prior institution affiliations, grants, in which he/she has participated, etc. At the same time, the database will serve institutions and companies to enter demands for specific projects. We prepared the project brief and carried out background research on 32 databases and systems for science and research in 14 European countries and the USA. We sorted the analyzed databases into groups and mapped the domestic and overseas situations, which we will present in detail. In the poster, we would also like to show that this kind of service can be provided by libraries. Libraries can adapt to their new role in research infrastructures. Now libraries can not only engage in collecting and accessing data but may also support the creation of data and their connection. Why was the National Technical Library (NTK) chosen? NTK has the ‘know-how’, professional staff and experience in the development and administration of databases, as well as experience with project management expertise to support knowledge databases. NTK has provided information services at a national level for many years and runs the national ISSN agency, the National Repository of Grey Literature, etc.
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Evaluation of Chemical and Technological Properties of Grain and Milling Franctions of Hulless Barley for Bakery Use
Vaculová, Kateřina ; Jirsa, Ondřej ; Balounová, Marta ; Sedláčková, Irena
Wider use of barley with great food potential due to its high nutritional value of grain is constrained by lack of knowledge about the functionality of barley grain components in terms of processing and food products development. Selected genotypes of hulless spring barley (cv. AF Lucius, lines KM 2084, KM 2283, KM 1057 and genetic resource Nudimelanocrithon) were examined for chemical composition (crude protein, starch, β-glucans, macro-minerals) and breadmaking properties of grain and grain milling fractions (flour, semolina, bran). Differences in chemical composition of genotypes reflected in both the yield and rheological properties of individual milling fractions, measured with farinograph and extensograph. The addition of barley flour (15-30%) or barley semolina and bran (10 and 20%) to standard wheat flour reflected in different rheological properties depending on a barley genotype. The farinograph parameters largely varied in individual materials, however, the percentage of barley fractions in the mixture did not affect the values considerably. In comparison with standard wheat flour, values of extensograph parameters were low (especially for energy and extensibility) in all barley samples studied. However, they were affected by both the proportion of barley fraction and its interaction with a rest period. When the rest period was longer (90 min), even higher additions of semolina or bran (especially in cv. AF Lucius) were technologically acceptable.
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Metabolic rhythms of unicellular, nitrogen fixing cyanobacteria and possible interplay with modeled KaiABC circadian oscillator
Červený, Jan ; Nedbal, Ladislav
Circadian clocks of living organisms provide evolutionary advantage and make living in dynamic environment more efficient. The clocks affect human lives and health as well as control the simplest organisms such as prokaryotic cyanobacteria. The cyanobacteria represent an excellent model that is amendable to a multitude of genetic, biochemical, and biophysical methods. The cyanobacterium, Cyanothece sp. ATCC 51142 relies on the circadian clock to permit, in the same cell, anoxygenic nitrogen fixation at night and oxygenic photosynthesis during solar day. We measured real-time, in-situ photosynthetic and respiratory activities as well as the culture growth under light forcing conditions and also under constant light, i.e. free-running mode. Interestingly, the experiments show a strong 24h-period dynamic pattern that is replaced by apparent 12h-period in free running mode. The 24h-pattern does not change significantly when changing the light/dark ratio from 16hL/8hD to 12hL/12hD and 8hL/16hD. Furthermore, we tried to elucidate connection between these metabolic rhythms and known structure of KaiABC circadian oscillator by means of mathematical modeling. One of simulation results show a strong correlation between the presumed catabolic event indicated by significant peak in respiratory activity, and simulated dynamics of KaiB4 complex in modeled circadian pacemaker. A causal relationship between these 2 events is suggested because KaiB4 facilitates dephosphorylation of KaiC6 hexamer, which is known to signal upcoming dark period.
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Publishing the vocabulary of the types of grey literature as linked data
Mynarz, Jindřich ; Pejšová, Petra ; Simandlová, Tereza ; Labuda, Radim
The formulation of the vocabulary of the types of grey literature in RDF (Resource Description Framework) provides an explicit conceptualization of the domain of grey literature. This type of modelling harnesses the expressive power of ontology languages for RDF data format and its flexible and extensible nature. Formalized in this way, the vocabulary serves as a means to describe grey literature resources in a structured, machine-readable manner. Adopting linked data publishing model affords the re-use and light-weight integration of the vocabulary with other vocabularies via links. The vocabulary built in this way can re-purpose existing vocabularies and re-purpose their concepts by putting them in a new context. This may lead to tighter integration of grey literature within the Web and make it easier to be discovered.
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