Results 11 to 20 of about 3,452 (148)

The effects of a higher amount of iodine supplement on the efficiency of laying hens fed extruded rapeseed and on eggshell quality

open access: yesCzech Journal of Animal Science, 2004
The objective of this experiment was to study the effects of feeding 6.07 mg/kg of iodine in comparison with 3.57 mg/kg of iodine as a supplement in diets with different levels of extruded rapeseed (4.5, 9.0 and 13.5%) for a period of 52 weeks.
M. Lichovniková, L. Zeman
doaj   +1 more source

The effect of different wavelengths of light during incubation on the development of rhythmic pineal melatonin biosynthesis in chick embryos

open access: yesAnimal, 2019
Rhythmic pineal melatonin biosynthesis develops in chick embryos incubated under a light (L)-dark (D) cycle of polychromatic white light. The spectral sensitivity of the embryonic pineal gland is not known and was investigated in this study.
A. Drozdova, M. Okuliarova, M. Zeman
doaj   +1 more source

Outlook of logging perspectives in the Czech Republic for the period 2013-2032

open access: yesJournal of Forest Science, 2014
The aim of the submitted work was to analyze the outlook of logging perspectives in the next two decades (2013-2032) for all forests in the territory of the Czech Republic.
M. Synek, J. Vašíček, M. Zeman
doaj   +1 more source

Economic Impact of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) production in the Czech Republic

open access: yesJournal of Forest Science, 2014
The article addresses the issues of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) production in the Czech Republic (CR). Our analysis shows that the tree species can occupy 149,616-163,713 ha in the CR (with respect to ecological limits set by the ...
K. Pulkrab, M. Sloup, M. Zeman
doaj   +1 more source

Effect of Welding Thermal Cycles on Microstructure and Mechanical Properties of Simulated Heat Affected Zone for a Weldox 1300 Ultra-High Strength Alloy Steel

open access: yesArchives of Metallurgy and Materials, 2016
In the present study, the investigation of weldability of ultra-high strength steel has been presented. The thermal simulated samples were used to investigate the effect of welding cooling time t8/5 on microstructure and mechanical properties of heat ...
Węglowski M. St.   +2 more
doaj   +1 more source

Autothermal Reforming of Hydrocarbon Fuels

open access: yesChemical Engineering Transactions, 2011
preview not available - see full-text PDF article.
H. Zeman, M. Url, H. Hofbauer
doaj   +1 more source

The effect of feeding untreated rapeseed and iodine supplement on egg quality

open access: yesCzech Journal of Animal Science, 2008
The objective of the experiment was to evaluate the effect of the feeding of 80 g/kg (R8) and 100 g/kg (R10) of untreated rapeseed (RS) on egg quality including sensory quality in comparison with a control diet without rapeseed (R0).
M. Lichovníková   +2 more
doaj   +1 more source

OPEN SOURCE IMAGE-PROCESSING TOOLS FOR LOW-COST UAV-BASED LANDSLIDE INVESTIGATIONS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
In recent years, the application of unmanned aerial vehicles (UAVs) has become more common and the availability of lightweight digital cameras has enabled UAV-systems to represent affordable and practical remote sensing platforms, allowing flexible and ...
U. Niethammer   +4 more
doaj   +1 more source

Role of the Polyol Pathway in Locomotor Recovery and Wallerian Degeneration after Spinal Cord Contusion Injury

open access: yesNeurotrauma Reports, 2021
Spinal cord contusion injury leads to Wallerian degeneration of axonal tracts, resulting in irreversible paralysis. Contusion injury causes perfusion loss by thrombosis and vasospasm, resulting in spinal cord ischemia. In several tissues, including heart
Richard J. Zeman   +4 more
doaj   +1 more source

Lost learning: Prevalence, inequalities and outcomes of internal exclusion in mainstream secondary schools

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Internal exclusion (isolation) is a behaviour management approach involving the temporary relocation of a pupil from their classroom to a designated isolation space as a consequence of disruptive behaviour. We present the first study of prevalence (i.e., what proportion of young people are isolated?), inequalities (i.e., who is more likely to ...
Emma Thornton   +3 more
wiley   +1 more source

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