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1

Ocena procesow odnawiania, przezywania i ubywania w lasach o zroznicowanej strukturze

100%
Poznanski R., Banas J.
Acta Agraria et Silvestria. Series Silvestris
|
2001
|
tom 39
183-194
The progress and intensity of the processes of regeneration, survival, and loss of trees in forests of a differentiated structure are presented in this paper A study concerned an area of 298.31 hectares of uneven-aged mountain forests of the Forest Experimental Station in Krynica managed by the shelterwood silvicultural system with the Swiss irregular shelterwood felling In the development of forests of a differentiated structure the increment was characterized by the highest intensity (8.83 m3/hectare/year), while the loss was less (4.14 m3/hectare/year), and the recruitment least (0.56 m3/hectare/year) intensive.
2

Cell death in the midgut epithelium of Epilachna cf. nylanderi (Insecta, Coccinellidae)

100%
Rost-Roszkowska M. M., Poprawa I., Klag J., Migula P., Mesjasz-Przybylowicz J., Przybylowicz W.
Acta Biologica Cracoviensia. Series Botanica. Supplement
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2008
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tom 50
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nr 1
3

The influence of resin regeneration on nitrates removal effectivity from drinking water

100%
Cyplik P., Czaczyk K., Piotrowska-Cyplik A., Marecik R., Grajek W.
Nauka Przyroda Technologie. Uniwersytet Przyrodniczy w Poznaniu
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2008
|
tom 02
|
nr 1
4
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Micropropagation of an old specimen of common lilac [Syringa vulgaris L.] from the Dendrological Garden at Przelewice

100%
Nesterowicz S., Kulpa D., Moder K., Kurek J.
Acta Scientiarum Polonorum. Hortorum Cultus
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2006
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tom 05
|
nr 1
The published results on plant propagation m vitro culture show the importance of maternal plant age in a successful regeneration process. It is known that initiation effectiveness is low when primary explants are taken from old trees. The aim of this study was an attempt to regenerate Syringa vulgaris from an old specimen of Dendrological Garden in in vitro culture. April turned out to be the optimal month for collecting explants. The highest percentage of initiated shoots were obtained on MS medium containing 7.5 mg⋅dm⁻³ BAP and 0.02 mg⋅dm⁻³ NAA. The highest propagation efficiency was received on MS medium with a double amount of MgSO₄ supplemented with 1.0 mg⋅dm⁻³ BAP. Insignificant effects were observed on the media with cytokinin BAP. The plants with the best-developed root system were obtained on MS medium with reduced to ¼ amount of macro- and micronutrients supplemented with 5.0 mg·dm⁻³ IBA.
5
Content available remote

Changes in caveolin-1, caveolin-3 and vascular endothelial growth factor expression and protein content after botulinum toxin A injection in the right masseter muscle of dystrophin deficient (mdx-) mice

80%
Botzenhart U. U., Vaal V., Rentzsch I., Gredes T., Gedrange T., Kunert-Keil
Journal of Physiology and Pharmacology
|
2017
|
tom 68
|
nr 2
6

Cyclic changes in tree species composition of mixed-species forest in Western Carpathians: role of disturbance and tree regeneration

80%
Saniga M., Balanda M., Kucbel S., Jaloviar P.
Polish Journal of Ecology
|
2011
|
tom 59
|
nr 4
The paper presents results acquired by an analysis of stand structure, regeneration processes and disturbance regime of a mixed natural forest located in the Carpathians (Central Slovakia). The data were collected on two permanent research plots located on different geological bedrocks (andesite and migmatites). Significant differences in the composition of the upper tree layer were observed among two types of geological bedrock. On the plot I (andesite), European ash (Fraxinus excelsior L.) occurred as a dominant component. An opposite situation was observed on the plot II (migmatites). The coexistence of beech (Fagus sylvatica L., spruce (Picea abies L. Karst.) and ash was recorded in the upper layer. The middle and lower layers were almost identical on both types of bedrock. The dominance of beech with the admixture of other tree species was observed. Regarding the structure of the present forest stand in relation to the structure of the gapmakers and natural regeneration, we observed a partial cyclical alternation of the tree species composition of this natural forest within the time span of several developmental cycles. The analysis of natural regeneration implied a crucial role of ungulates for the growth enforcement of ash individuals in the next generation of natural forest. Under the current condition, a negative trend in tree species diversity of the future generation of natural forest towards the dominance of beech was found.
7

Influence of the mineral composition of drinking water taken from surface water intake in enhancing regeneration processes in mineralized human teeth tissue

80%
Lagocka R., Sikorska-Bochinska J., Nocen I., Jakubowska K., Gora M., Buczkowska-Radlinska J.
Polish Journal of Environmental Studies
|
2011
|
tom 20
|
nr 2
The purpose of our study was to assess whether the chemical composition of drinking water in the city of Szczecin, Poland, creates the correct environment in the oral cavity for promoting regeneration processes in the mineralized tissue of teeth. The drinking water samples were collected from a water treatment station, as raw and treatment water, and from consumer’s water pipes. The concentration of calcium and magnesium was determined by F-AAS method, fluoride by ion-specific electrode, and pH by pH-Meter. The average concentrations of calcium (46.9 mg/dm³), fluoride (0.73 mg/dm³), and pH level (7.46) determined in tap drinking water create a sufficient environment in the oral cavity for promoting regeneration processes in tooth mineralized tissues. Because of the low concentrations of magnesium in drinking water (14.1 mg/dm³), this element should be supplemented in a person’s diet.
8

Festoco ovinae-Hypnetum jutlandici - the moss-rich heath developing under the influence of moderate treading of pine forests

80%
Rakowski W.
Seria Biologiczna. Uniwersytet im. Adama Mickiewicza w Poznaniu
|
2004
|
tom 69
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