Wyniki wyszukiwania

1

Physical factors effecting the excystment of the heterotrichous ciliate Fabrea salina (Henneguy)

100%

Desimone S. D., Repak A. J.

Acta Protozoologica

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1991

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tom 30

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nr 1

2

Physical and chemical characteristics of water in selected small gardens ponds

75%

Plaska W., Rechulicz J., Tarkowska-Kukuryk M.

Teka Komisji Ochrony i Kształtowania Środowiska Przyrodniczego

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2014

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tom 11

3

Ecological models are useful tools in ecohydrology

75%

Jorgensen S. E.

International Journal of Ecohydrology and Hydrobiology

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2001

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tom 01

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nr 3

Ecohydrology presumes that physical external variables have a major influence on the biological components of an ecosystem and vice versa. The relationships between physical factors and biological components may be useful tools in environmental management. It requires, however, that these relationships are known quantitatively. It is only possible through the development of a proper model for the ecosystem, because of the high complexity of the ecological network involved. A "proper model" is a model that can account for changes in species composition and adaptation, when the prevailing conditions are changed, i.e., a structurally dynamic model. The paper presents a model, that shows how a change from a constant out-flow rate from a reservoir to an out-flow rate that is purposely higher at the time of spring and summer bloom and at the time of spawning for planktivorous fish, is able to reduce the eutrophication level. The model presented in this paper considers only the phosphorus cycle, because phosphorus is presumed to be the limiting nutrient for phytoplankton growth. Two more ecohydrological examples that could be used quantitatively by use of a proper model are mentioned. The conclusion is, that ecohydrology offers possible and appropriate environmental management solutions but that a proper model for the considered cases is required to utilise ecohydrological possibilities quantitatively.

4

Structural and physiological basis of axopodial dynamics

75%

Febvre-Chevalier C., Febvre J.

Acta Protozoologica

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1993

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tom 32

|

nr 4

5

Krill distributions and their diurnal changes (Elephant Island, South Orkney Islands, December 1988, January 1989)

63%

Godlewska M., Klusek Z.

Oceanologia

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1991

|

tom 31

6

Professional hazard of the operation of selected forestry machines and ways of its prevention

63%

Kowalczuk J., Bednarz K.

Teka Komisji Motoryzacji i Energetyki Rolnictwa

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2010

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tom 10

7

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

The use of physical factors for seed quality improvement of horticultural plants

63%

Krawiec M., Dziewulska-Hunek A., Kornarzynski K.

Journal of Horticultural Research

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2018

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tom 26

|

nr 2

8

Selected physical and chemical factors in the ecotone zones of lakes of different trophy in the region of Polesie Lubelskie [Eastern Poland]

63%

Radwan S., Stepien B., Bojar W.

Polish Journal of Ecology

|

2003

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tom 51

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nr 2

The studies were carried out in the littoral zone of six lakes differing in trophic and biotic diversity. These were: L. Piaseczno - the mesotrophic lake with the well developed psammolittoral, L. Uściwierz - the slightly eutrophic lake with the psammolittoral and phytolittoral, the hypertrophic lake L. Głȩbokie Uścimowskie with the psammolittoral, L. Bikcze and L. Łukie - both the eutrophic lakes with phytolittoral, and the dystrophic L. Moszne - with peatbog phytolittoral. During the spring and the summer-autumn seasons in 1996-1997 the physical and chemical composition (temperature, electrolytic conductivity, O₂, pH, total water hardness, nitrogen compounds and phosphorus compounds) of water were investigated in the littoral zone in these lakes.

9

Enzymatic, physical and chemical modifications of krill chitin

63%

Wojtasz-Pajak A., Kolodziejska I., Debogorska A., Malesa-Ciecwierz M.

Bulletin of the Sea Fisheries Institute

|

1998

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nr 1

10

The influence of chosen physico-chemical factors on proteolytic activity of the hatching liquid of Coregonus albula and C.lavaretus

63%

Luberda Z., Strzezek J., Luczynski M.

Acta Biochimica Polonica

|

1992

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tom 39

|

nr 1

11

Hearing loss among private farmers in the light of current criteria for diminished sense of hearing

63%

Solecki L.

Annals of Agricultural and Environmental Medicine

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2002

|

tom 09

|

nr 2

12

Influence of physical and chemical factors on the activity of chitinases produced by planktonic bacteria isolated from Jeziorak Lake

63%

Donderski W., Trzebiatowska M.

Polish Journal of Environmental Studies

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2000

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tom 09

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nr 2

Studies on the influence of physical and chemical factors on the activity of chitinases produced by planktonic bacteria isolated from Jeziorak Lake were carried out. The results evidenced maximum activity of bacterial strains at pH 6.0 and at 10°C and 30°C. Among the strains studied, higher activity was recorded along with an increase in colloidal chitin concentration. The highest activity was recorded at 2% concentration of chitin. The majority of strains hydrolyzed chitin most intensely after 192 h of incubation, whereas no strain revealed chitinases activity after 48 h.

13

Effect of laser radiation on spring wheat genotypes

63%

Drozd D., Szajsner H.

International Agrophysics

|

1999

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tom 13

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nr 2

14

Monsoon-driven dynamics of environmental factors and phytoplankton in tropical Sanya Bay, South China Sea

51%

Wu M.-L., Zhang Y.-Y., Dong J.-D., Cai C.-H., Wang Y.-S., Long L.-J., Zhang S.

Oceanological and Hydrobiological Studies

|

2012

|

tom 41

|

nr 1

15

Wlasciwosci pepsyny jako bialka polianionowego. Cz.I. Kompleksy pepsyny z protamina

51%

Roszkowska-Jakimiec W., Ali F. K., Gacko M., Worowska A.

Bromatologia i Chemia Toksykologiczna

|

1996

|

tom 29

|

nr 4

381-386

Ustalono stosunki molowe pepsyny i protaminy w nierozpuszczalnych kompleksach oraz wpływ czynników fizycznych i chemicznych na trwałość tych kompleksów.

16

Changes in root architecture and physiological characteristics of the above-ground part in maize and triticale seedlings grown in conditions of different soil compaction

51%

Grzesiak M., Rzepka A., Dziurka M., Czyczylo-Mysza I.

Zeszyty Problemowe Postępów Nauk Rolniczych

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2008

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tom 524

The effect of 3 levels soil compaction (low - 1.30, moderate - 1.47 and severe - 1.58 g·cm⁻³) on triticale and maize seedling shoots and root dry matter, leaf number, number and length of particular components of the root system, leaf injury (LI), leaf water potential (Ψ), chlorophyll content (Chl) and maximum quantum yield of PS II (Fv/Fm) were examined. For both examined species high level of soil compaction strongly affected the length of seminal and seminal adventitious roots and the number and length of nodal roots. Comparing to maize, a slightly weaker impact of soil impedance on the number and length of developed root system was observed in triticale. After 3 or 6 weeks of growth in the conditions of moderate and severe soil compaction a decrease in leaf number, dry matter of shoot and roots, and increase in leaf injury index and shoot to root (S/R) dry matter ratio were observed. Changes in root architecture under a high soil impedance were accompanied by changes in the leaf injury index (LI), leaf water potential (Ψ), chlorophyll content (Chl) and maximum quantum yield of PS II (Fv/Fm). On moderate or severe soil compaction level changes of the values of LI, Ψ, Chl and Fv/Fm were higher and statistical significant as comparing to a low soil compaction treatment. Similarly as in the case of root growth characteristic changes in physiological traits measured in leaves showed weaker impacts of high soil compaction for maize than triticale.

17

Wlasciwosci pepsyny jako bialka polianionowego. Cz.II. Kompleksy pepsyny z bialkami zasadowymi

51%

Roszkowska-Jakimiec W., Ali F. K., Gacko M., Worowska A.

Bromatologia i Chemia Toksykologiczna

|

1997

|

tom 30

|

nr 1

45-48

Ustalono stosunki molowe pepsyny i białek zasadowych (histon, lizozym, cytochrom c, rybonukleaza) w nierozpuszczalnych kompleksach oraz wpływ czynników fizycznych i chemicznych na trwałość tych kompleksów.

18

Effect of different soil compaction on growth and root architecture in maize and triticale seedlings

51%

Grzesiak M. T., Hura T., Rzepka A., Grzesiak S.

Acta Physiologiae Plantarum

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2007

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tom 29

|

nr 1 Suppl.

19

Annual variability of ichthyoplankton in the Yangtze River estuary of China from August 2002 to 2009

51%

Jiang M., Shen X.-Q., Li L., Quan W.-M.

Oceanological and Hydrobiological Studies

|

2013

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tom 42

|

nr 1

20

Analysis of selected factors of the environment in the technological processes of surface treatment of wood with the presence of hazardous substances

51%

Ruzinska E., Krajewski K. J.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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2013

|

tom 84

Ograniczanie wyników

Physical factors effecting the excystment of the heterotrichous ciliate Fabrea salina (Henneguy)

Physical and chemical characteristics of water in selected small gardens ponds

Ecological models are useful tools in ecohydrology

Structural and physiological basis of axopodial dynamics

Krill distributions and their diurnal changes (Elephant Island, South Orkney Islands, December 1988, January 1989)

Professional hazard of the operation of selected forestry machines and ways of its prevention

The use of physical factors for seed quality improvement of horticultural plants