scholarly journals Preliminary Revision of the Palynological Collection of Professor Blanka Pacltová – A Significant Collection of Cenomanian Microflora Housed at the National Museum, Prague

2019 ◽  
Vol 75 (2) ◽  
pp. 141-152
Author(s):  
Eduardo Barrón ◽  
Jiří Kvaček ◽  
Jiřina Dašková
Keyword(s):  
Czech Republic ◽  
National Museum ◽  
The Czech Republic ◽  
Pollen Types ◽  
1960S And 1970S ◽  
Bohemian Cretaceous Basin ◽  
The 1960S ◽  
Angiosperm Pollen ◽  
Long Term Preservation

A preliminary revision of the palynological collection of Professor Blanka Pacltová was carried out considering samples from the middle Cenomanian of the Peruc-Korycany Formation, the basal most member of the Bohemian Cretaceous Basin (the Czech Republic). This collection is mainly composed of slides with palynological residues for light microscope study, which were mounted in the 1960s and 1970s. This work presents an evaluation of the state of preservation of this collection, taking into account the presence of ancient angiosperm pollen types. High percentage of preparations is affected by degradation of glycerine jelly and their remounting is necessary. The present study additionally suggests a methodology for curation of this collection with the objective of long-term preservation.

scholarly journals The long decade of digital preservation in heritage institutions in the Czech Republic: 2002–2014

2015 ◽  
Vol 10 (1) ◽  
pp. 173-183
Author(s):  
Jan Hutař ◽  
Marek Melichar
Keyword(s):  
Czech Republic ◽  
State Of The Art ◽  
Digital Preservation ◽  
Digital Data ◽  
User Requirements ◽  
The Czech Republic ◽  
English Speaking ◽  
Further Development ◽  
Long Term Preservation

This paper aims to give state-of-the-art information about digital preservation activities in the Czech Republic during the last decade to an English-speaking audience. We briefly describe major phases of the “digital” projects. These were mainly in libraries, with some references to museums, galleries and archives. We focus on aspects related to the preservation of collected born-digital and digitised content. Even now, digital preservation activities in heritage institutions are often on the periphery of the interest of all stakeholders and the infrastructure supporting digital preservation of data in heritage institutions is not well financed or coordinated. Even though the “long decade”, which lasted from the dramatic events of 2002 until approximately 2014, saw a number of successful projects creating digital data in Czech libraries, the handful of projects which were in part focused on digital preservation were not flexible enough to accommodate user requirements and were failing to meet expectations. There is still much room for further development in the area of long-term preservation of digital data in the Czech Republic. This article is a shortened version of one of the analyses written under the “Strategy of the research, development and innovation for the years 2010–2015” program of the Moravian Library in Brno, Czech Republic.

Turonian marine amniotes from the Bohemian Cretaceous Basin, Czech Republic

2013 ◽  
Vol 151 (1) ◽  
pp. 183-198 ◽  
Author(s):  
BENJAMIN P. KEAR ◽  
BORIS EKRT ◽  
JOSEF PROKOP ◽  
GEORGIOS L. GEORGALIS
Keyword(s):  
Czech Republic ◽  
Late Cretaceous ◽  
Sea Turtles ◽  
Diverse Range ◽  
The Czech Republic ◽  
Bohemian Cretaceous Basin ◽  
Recent Attention

AbstractDespite being known for over 155 years, the Late Cretaceous marine amniotes of the Bohemian Cretaceous Basin in the Czech Republic have received little recent attention. These fossils are however significant because they record a diverse range of taxa from an incompletely known geological interval: the Turonian. The presently identifiable remains include isolated bones and teeth, together with a few disarticulated skeletons. The most productive stratigraphical unit is the Lower–Middle Turonian Bílá Hora Formation, which has yielded small dermochelyoid sea turtles, a possible polycotylid plesiosaur and elements compatible with the giant predatory pliosauromorphPolyptychodon. A huge protostegid, together with an enigmatic cheloniid-like turtle,Polyptychodon-like dentigerous components, an elasmosaurid and a tethysaurine mosasauroid have also been found in strata corresponding to the Middle–Upper Turonian Jizera Formation and Upper Turonian – Coniacian Teplice Formation. The compositional character of the Bohemian Cretaceous Basin fauna is compatible with coeval assemblages from elsewhere along the peri-Tethyan shelf of Europe, and incorporates the globally terminal Middle–Upper Turonian occurrence of pliosauromorph megacarnivores, which were seemingly replaced by mosasauroids later in the Cretaceous.

Long-term changes in body weight, BMI, and adiposity rebound among children and adolescents in the Czech republic

2007 ◽  
Vol 5 (3) ◽  
pp. 409-425 ◽  
Author(s):  
J. Vignerová ◽  
L. Humeníkova ◽  
M. Brabec ◽  
J. Riedlová ◽  
P. Bláha
Keyword(s):  
Body Weight ◽  
Czech Republic ◽  
Children And Adolescents ◽  
The Czech Republic ◽  
Adiposity Rebound ◽  
Long Term Changes

scholarly journals Effects of long-term repeated chemical disinfection treatment on the surface hardness self-polymerizing reline resins

2013 ◽  
Vol 1 (1) ◽  
pp. 55
Author(s):  
Luciana de Rezende Pinto ◽  
Paulo Maurício Batista Silva ◽  
Vinicius Carvalho Porto
Keyword(s):  
Surface Hardness ◽  
Knoop Hardness ◽  
Control Group ◽  
Tukey Test ◽  
Acrylic Resins ◽  
Biofilm Removal ◽  
Chemical Solutions ◽  
1960S And 1970S ◽  
The 1960S

Denture hygiene techniques and procedures were developed in the 1960s and 1970s and most studies indicate the importance of mechanical biofilm removal by denture brushing associated with disinfection with chemical solutions. Studies in the literature show many chemical procedures that may be used for denture biofilm control. When the immersion procedure is used, the disinfectant should be selected with regard to its effectiveness in inactivating microorganisms without any adverse effects on the denture materials. PURPOSE: This study investigated the hardness of three self-polymerizing reline resins after long-term repeated chemical disinfections. MATERIAL AND METHODS: Sixty round specimens (30 x 6mm) were made from each material: Jet, Kooliner and Tokuyama Rebase II Fast, and divided in 6 groups (n=10). The control group was stored in water and the others were disinfected with 1%, 2%, 5.25% sodium hypochlorite, 2% glutaraldehyde, and 4% chlorhexidine gluconate, respectively. The specimens were tested for knoop hardness (KHN) before disinfection and after 30, 90 and 180 disinfection cycles. Data were analyzed by analysis of variance followed by the Tukey test at 5%. RESULTS: The hardness of Jet resin varied from 18.74 ± 0.47 to 13.75 ± 0.95 KHN, Kooliner varied from 14.09 ± 1.63 to 7.52 ± 0.88 KHN, and Tokuyama Rebase II Fast from 12.57 ± 0.94 to 8.28 ± 0.39 KHN. Statistically significant decrease in hardness of the three reline acrylic resins was observed early after the first 30 disinfection cycles. CONCLUSION: The hardness of the tested materials decreased after immersion in water and after long-term repeated chemical disinfections.

scholarly journals Loose Monetary Policy and Corporate Investment of Manufacturing Firms in the Czech Republic

2018 ◽  
Vol 18 (4) ◽  
pp. 371-385
Author(s):  
Veronika Kajurová ◽  
Dagmar Linnertová
Keyword(s):  
Monetary Policy ◽  
Czech Republic ◽  
Interest Rates ◽  
Corporate Investment ◽  
Manufacturing Firms ◽  
Investment Activity ◽  
The Czech Republic ◽  
Low Interest Rates ◽  
Negative Effect

Abstract The aim of the paper is to evaluate the effects of loose monetary policy on corporate investment of manufacturing firms in the Czech Republic during the period between 2006 and 2015. The main focus of the paper is on the effect of low interest rates on investment activity of Czech firms; additionally, the effects of interactions between interest rate and other firm-specific variables are investigated. The results indicate that corporate investment is positively associated with firm size, investment opportunities, and long term debt. Also, a negative effect of the cash position is found. Further, the findings show that monetary policy is a significant determinant of firm investment activity: when the monetary policy is loose, investment is positively affected. Furthermore, differences in the determinants of investment between highly and low leveraged firms were revealed.

scholarly journals Values of rainfall erosivity factor for the Czech Republic

2013 ◽  
Vol 61 (2) ◽  
pp. 97-102 ◽  
Author(s):  
Miloslav Janeček ◽  
Vít Květoň ◽  
Eliška Kubátová ◽  
Dominika Kobzová ◽  
Michaela Vošmerová ◽  
...  
Keyword(s):  
Czech Republic ◽  
Water Erosion ◽  
Rainfall Erosivity ◽  
The Czech Republic ◽  
Average Value ◽  
R Factor ◽  
The Usa ◽  
Time Division ◽  
R Factors

Abstract The processing of ombrographic data from 29 meteorological stations of the Czech Hydrometeorological Institute (CHMI), according to the terms of the Universal Soil Loss Equation for calculating long term loss of soil through water erosion, erosion hazard rains and their occurrence have been selected, with their relative amount and erosiveness - R-Factors determined for each month and years. By comparing the value of the time division of the R-Factor in the area of the Czech Republic and in selected areas of the USA it has been demonstrated that this division may be applied in the conditions of the Czech Republic. For the Czech Republic it is recommended to use the average value R = 40 based on the original evaluation.

scholarly journals Population trends and diversification of breeding habitats of Peregrine Falcon (Falco peregrinus) in the Czech Republic since 1990

2018 ◽  
Vol 26 (2) ◽  
pp. 121-129
Author(s):  
Václav Beran ◽  
Josef Vrána ◽  
David Horal
Keyword(s):  
Czech Republic ◽  
Breeding Habitat ◽  
Peregrine Falcon ◽  
German Population ◽  
Falco Peregrinus ◽  
The Czech Republic ◽  
Nest Boxes ◽  
Industrial Buildings ◽  
The 1960S ◽  
Population Restoration

Abstract The population of the Peregrine Falcon (Falco peregrinus) in the Czech Republic recovered from a nearly total extinction during the 1960s and 1980s (0­3 breeding pairs) and the first successful breeding after this interval was confirmed in 1995. The increase of the population size accelerated after 2000 and it is still growing despite the limited amount of suitable natural breeding opportunities. There were 89 known pairs in 2016, 70 of them were proven to breed with altogether at least 121 reared young. Several breeding attempts on historical buildings in city­centres were recorded up to 2002 (in Prague and Pilsen), but this breeding habitat was abandoned later. More and more pairs are nowadays breeding on industrial buildings. The first breeding on a power plant chimney, 300m above the ground was discovered in 2010. Moreover, 16 breeding pairs were found on industrial buildings in 2016 (mainly tall chimneys or cooling towers and power­plant buildings), all of them breeding in nest boxes. The colonization of industrial buildings started in western part of the Czech Republic and continues eastwards every year. Currently, the easternmost colonized building is in Mladá Boleslav. We have no recent tree­breeding pairs and all eight published historical cases are at least doubtful. Most of the observed Peregrines ringed abroad came from Germany, indicating a strong influence of German population on restoration of the population in the Czech Republic. Within these recoveries, some of Peregrines were released in the tree­breeding population restoration project in Germany and Poland, but all these birds bred on rocks.

scholarly journals The Biggest Museum Project in Czech History: The New Permanent Natural History Exhibitions in the National Museum Prague

2018 ◽  
Vol 2 ◽  
pp. e26375
Author(s):  
Ivo Macek
Keyword(s):  
Czech Republic ◽  
Natural History ◽  
Geographical Area ◽  
Modern Technology ◽  
Creative Industries ◽  
Good Time ◽  
National Museum ◽  
Modern Approach ◽  
The Czech Republic ◽  
The Right

In 2018 the National Museum Prague (NMP) is celebrating its 200th anniversary. Today the Museum is facing its most valuable development: brand new permanent exhibitions. Our monumental historic building was constructed in 1891 in the heart of Prague. After more than one hundred years we had to close the building and remove all exhibitions which were older than 40 years. The building has about 8,000m2 and is divided into two parts. One belongs to our Natural History Museum (NHM) collections with Zoology, Palaeontology, Mineralogy, Botany and Mycology exhibitions. Our new natural history galleries will open in autumn 2019. Housed all on one floor, the galleries will be full of animals like invertebrates, fishes, reptiles, birds and mammals. The second floor will focus on palaeontology spanning more than 500 million years of evolution covering the geographical area of the modern Czech Republic. At the beginning we had to ask ourselves a few simple questions. How do we develop permanent exhibitions that will last for decades? Is excluding modern technology the right thing to do? Should we focus on a more informative/education style or should the interpretation be more populist? And what about the display cases? Should we use old repaired ones or modern cases? It would be great to have answers to all these questions but we still have to deal with the vision and constraints of our curators, collections, budget, legislation, technology and construction of the building. The project has no similar equivalent in the history of the Czech Republic so it was an extraordinary challenge to create our own process of developments with ongoing improvements. Through these developments we have formed new cooperation with technological partners and the creative industries. We are defining a new modern approach to the development and preparation of exhibitions in the Czech Republic. Now that we have reached the half way point towards our vision, it is a good time to report on progress.

scholarly journals Consequences of the Public Contract Law for Purchase of Scientific Appliances in the Czech Republic

2015 ◽  
Vol 63 (2) ◽  
pp. 675-681
Author(s):  
Martin Vyklický
Keyword(s):  
Czech Republic ◽  
Contract Law ◽  
Public Funds ◽  
The Czech Republic ◽  
The Public ◽  
Flow Of Funds ◽  
Science And Research ◽  
Research Equipment ◽  
Public Contract

This article essentially covers in more detail the consequences of the present wording of the Public Contract Law for purchase of scientific appliances in the Czech Republic. The beginning of the article deals with increasing public expenses in research; then, the problem is defined concerning unsuitable wording of certain provisions of the Public Contract Law; while subsequently, the solution for the problem is searched together with the final comments. Investing of public funds into science and research is probably the most efficient in a long-term horizon. However, the flow of funds for acquisition of scientific and research equipment should be supported by appropriate legislation with such wording and form not to prevent purchases of that equipment. Availability of public funds for something which in fact cannot be, due to wrongly set legislation, acquired by a contracting authority is the problem which must be eliminated through timely implementation of the above proposed changes in the Public Contract Law.

Sign in / Sign up

Export Citation Format

Share Document