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Predicting the soil water retention curve from readily - available data obtained during soil surveys

100%

Simota C., Mayr T.

International Agrophysics

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1996

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tom 10

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nr 3

2

Milk fat retention during the production of some ripening cheeses

88%

Bohdziewicz K.

Polish Journal of Food and Nutrition Sciences

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2006

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tom 15/56

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nr Spec.Issue 1

Milk fat retention in cheese was determined during the production of six various types of cheese, Ementalski, Gouda, Mazurski, Tylżycki, Warmiński and Jeziorański, at different dairy plants (DP-A, ... DP-F), depending on the technological and technical conditions of the production process, taking into account seasonal changes in milk composition. A statistical analysis of the results showed that in all cheese types the levels of milk fat recovery in cheese was not affected by the season. An analysis of particular production processes revealed statistically significant differences (at a confidence level of α=0.05) only in the case of Ementalski cheese produced at DP-B, for which the level of milk fat retention in cheese was higher in the summer than in the winter. In the other cases no statistically significant differences were found. An analysis of milk fat retention in all types of cheese throughout the year and in the summer and winter production cycles indicated that the level of milk fat recovery in cheese was related to cheese type. This suggests that the production technology and technical equipment had stronger effects on milk fat recovery in cheese than the chemical composition of milk. A comparison of the statistical values calculated for Ementalski cheese produced at DP-A and DP-B, and for Tylżycki cheese and Warmiński cheese produced at DP-E, confirmed that the technical equipment used at a cheese dairy had a greater influence on milk fat transfer than the production technology.

3

Transformation of pollutants in the stormwater treatment process

75%

Walega A., Cupak A., Pawelek J., Michalec B.

Polish Journal of Environmental Studies

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2014

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tom 23

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nr 3

Our paper evaluates the effectiveness of pollutant removal from stormwater in a semi-natural treatment plant and develops stochastic models of their transformations in a soil bed. The examined wastewater treatment facilities consisted of reduction chambers and a retention-infiltration reservoir. The following indicators of pollution were subjected to analysis: BOD₅, COD, total suspended solids, and chlorides. It was shown that COD, total suspended solids, and chlorides are the indicators that have the greatest impact on stormwater quality. However, the possibility of removal of the analyzed pollutants from stormwater is affected by the sedimentation process occurring in the reduction chambers and in the retention-infiltration reservoir, as well as by the process of infiltration through the soil bed. The developed models of pollutant transformation during wastewater infiltration through the bed were presented as the regression equations, where the selected pollution indicators in the filtrate were the dependent variable, while the analyzed pollution indicators in water from the retention-infiltration reservoir, coefficients of constant reaction kinetics determined for each variable, and the time of infiltration of wastewater through the soil bed were adopted as independent variables.

4

Retention of glycosyltransferases in the Golgi apparatus

75%

Jaskiewicz E.

Acta Biochimica Polonica

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1997

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tom 44

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nr 2

A number of Golgi glycosyltransferases has been cloned to date. They all are membrane proteins and share the same type II topology, but they do not possess an obvious sequence homology which would suggest a common Golgi retention signal. However, it was shown that the membrane-spanning domain and its flanking regions contain necessary and sufficient information for Golgi retention of these enzymes. Currently, two mutually complementary models have been proposed to explain the mechanism of Golgi retention of glycosyltransferases mediated by their transmembrane domain. The first model postulates the retention through oligomerization, which prevents enzymes from entering the transport vesicles. The second suggests that retention depends on the length of a membrane-spanning domain and thickness of the membrane along the Golgi complex. It has to be pointed out that neither the oligomerization nor the membrane thickness model alone can answer all questions and further work is still needed to elucidate the retention process of Golgi proteins.

5

Efficiency of wastewater treatment in an improved constructed wetland

75%

Obarska-Pempkowiak H., Ozimek T.

Polskie Archiwum Hydrobiologii

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2000

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tom 47

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nr 2

6

Effects of some tilth structures on the retention and movement of the soil water

75%

Shangning J., Changpu S.

Bibliotheca Fragmenta Agronomica

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1997

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tom 2A

7

Riverine water transformation during retention in small lowland reservoirs

63%

Suchowolec T., Gorniak A.

Oceanological and Hydrobiological Studies

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2009

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tom 38

|

nr 4

103-108

8

The effect of abundance of litterfall on retention of nitrogen and phosphorus in organic horizons of forest soils in the Slovinski National Park

63%

Parzych A., Trojanowski J.

Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline

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2011

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tom 15

The paper presents results of research into organic horizons and litterfall in two different forest ecosystems: Vaccinio uliginosi-Betuletum pubescentis and Empetro nigri-Pinetum in 2003-2005. On the basis of the amount and abundance of litterfall and abundance of organic horizons in the nitrogen and phosphorus compounds retention time and biological circulation coefficient of these elements in researched forest ecosystems was calculated. The nitrogen and phosphorus in organic horizons of Vaccinio uliginosi-Betuletum pubescentis have the shortest retention time (44 and 57 years respectively). The retention time of nitrogen and phosphorus in Empetro nigri-Pinetum are similar and counted about 62 years. The coefficient values of biological circulation show the strong inhibition of circulation of these elements, what caused reservation of matter in organic horizons and acidity of soil.

9

Preliminary investigation to estimate soil NAPL retention using parametric pedotransfer functions

63%

Hernadi H., Mako A.

International Agrophysics

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2014

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tom 28

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nr 4

Organic liquid retention of soils is a primary input variable for modelling the nonaqueous phase liquid transport and behaviour in the subsurface. In environmental and soil physical practice, it is mainly determined by scaling based on the water retention of soils or with charts of average empirical values of organic liquid retention or the fitting parameters of hydraulic functions. Predicting the fitting parameters of organic liquid retention curves with pedotransfer functions might be a promising alternative method, but this topic has only been researched to a limited extent. Thus we investigated the applicability of different hydraulic functions (3- and 4- parameter form of the van Genuchten equation and Brutsaert equation) for fitting organic liquid retention characteristics. Multivariate linear regression was used to build and develop pedotransfer functions, modelling relations between original and transformed values of basic soil properties and organic liquid retention. We attempted to generate parametric pedotransfer functions. According to our results, the applicability of hydraulic functions for fitting nonaqueous phase liquid retention curves to the experimental data was proven. The investigations gave promising results for the possibility to estimate soil nonaqueous phase liquid retention with parametric pedotransfer functions.

10

Effect of mineral oil on Myzus persicae capability to spread of PVY and PVM to successive potato plants

63%

Wrobel S.

Journal of Plant Protection Research

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2007

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tom 47

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nr 4

383-390

The work involved assessment of the Myzus persicae (Sulz.) capability to infect successively potato plants with PVY and PVM after a Sunspray 850 EC mineral oil application. The tests were carried out in the greenhouse, with 4-week-old, healthy potato plants possessing low ressistance to viruses, derived from in vitro (test plants). Any time, for each combination and each virus, 10 successive plants were inoculated in 6 repetitions. Virus sources were potato plants infected with PVY or PVM, kept in isolated rooms. As a result of oil application, feeding of the M. persicae specimens on plants previously treated with this oil was delayed. The highest reduction as regards PVY and PVM transmission by M. persicae was obtained in the treatment where both plants constituting virus sources and test plants were protected, because only two of ten plants were infected with PVY, and only one with PVM. Mineral oil application only on potato test plants (healthy ones) reduced to a small degree M. persicae capability to transmit PVY to six successive plants (to seven in control), whereas it was much higher for PVM - to three (to six in control). In the case when only plants constituting virus sources were oil-protected, aphid's capability to transmit PVY was limited only to four plants, and PVM - to two. These results seem to confirm much more the hypothesis that mineral oil inactivates virus particles in the stylets of aphids while they attempt to acquire it from plants which have been previously protected with mineral oil.

11

High pressure-modified starches as carriers for phenolic compounds

63%

Gorecki A. R., Blaszczak W., Hernandez T., Estrella I., Bartolome B., Garrido L.

Polish Journal of Food and Nutrition Sciences

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2011

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tom 61

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nr Suppl.1

12

Characteristics of the forest floor water retention in the Carpathian experimental catchment basin of the Trzebunka brook

63%

Homa A., Osuch B.

Journal of Water and Land Development

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2009

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nr 13a

13

Towards new ecological drainage system in Malaysia

63%

Abustan I., Wahid N. A.

International Journal of Ecohydrology and Hydrobiology

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2002

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tom 02

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nr 1-4

This article discusses the new Urban Stormwater Manual for Malaysia (MSMA) (DID 2000) to counter the current and major urban problems such as flash flooding, water pollution and ecological damage, urban slope failures, and sedimentation. MSMA uses control-at-source approach instead of rapid disposal as a tool to curb generation of pollutants and to be environmentally friendly. In this article, the authors describe a pilot study designed and constructed in the University Science Malaysia following the MSMA’s eco-drainage guidelines. The study found more than 60% reduction in capturing runoff volume. In addition, the peak flow was reduced to more than 50%. The positive results from the study indicate that this manual can be used to solve the problems outlined earlier. Specifically, it shows that MSMA’s guidelines are very much suitable to the humid tropical condition of the Malaysian environment.

14

The intensification of pond fish production and the magnitude of the waste load discharged during autumn harvesting

63%

Kolasa-Jaminska B.

Archives of Polish Fisheries

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2002

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tom 10

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nr 2

Carp were cultivated in polyculture with grass carp, silver carp and European catfish. The chemical parameters (pH, oxygen, ammonia nitrogen, nitrate nitrogen, nitrite nitrogen, total nitrogen, phosphates, total suspensions, chemical oxygen demand CODMn) of discharged water and four pond layers were measured during the autumn harvest. The study indicated that when the water was discharged the amounts of nitrogen compounds, phosphates and especially total suspension increased from 40 mg dm⁻³ in the first layer to 152 mg dm⁻³ in the last layer and that chemical oxygen demand CODMn increased from 10 mg dm⁻³ in the first layer to 176 mg dm⁻³ in the last layer. The results of both physical and chemical tests on the water discharged from ponds during two periods of the autumn harvest were used to calculate the magnitudes of the loads of organic matter, total suspension and nutrients. The loads of organic matter (expressed as CODMn in an acidic medium), nitrogen, phosphorus and suspensions in the discharged water were determined per ha of area. The highest values were observed in T-type ponds (1,500 specimens ha⁻¹) at an average of 1,214 kg ha⁻¹ and in G3-type ponds (4,000 specimens ha⁻¹ ) with an average of 1,198 kg ha⁻¹ . This data allowed the chemical parameters (kg ha⁻¹) of waters discharged from the ponds in autumn to be compared with the level of CODMn and the amount of nutrients which are introduced to the ponds in spring, as well as to determine the degree of nutrient and organic matter retention in the pond. In the majority of cases nitrogen is fully retained, phosphates are either fully or partially retained and there is an increase in water chemical oxygen demand CODMn especially during the harvest in September.

15

Nutrient loading and retention in lakes of the Jorka River system [Masurian Lakeland, Poland]: seasonal and long-term variation

63%

Hillbricht-Ilkowska A.

Polish Journal of Ecology

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2002

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tom 50

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nr 4

16

Peatlands - barrier or source of phosphorus inflow to lakes?

63%

Kruk M.

Acta Hydrobiologica

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1999

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tom 41

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nr Suppl.6

17

The emission, absorption and retention of greenhouse gases [GHG] in Polish agriculture

63%

Nalborczyk E., Pietkiewicz S., Loboda T.

Geographia Polonica

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1999

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tom 72

|

nr 2

18

Spatial characteristics of potentially useful retention in Polish arable soils

63%

Walczak R., Ostrowski J., Witkowska-Walczak B., Slawinski C.

International Agrophysics

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2002

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tom 16

|

nr 3

19

How do rats cope with the two-way escape problem in a homogenous shuttle box?

63%

Savonenko A. V., Brush F. R., Zielinski K.

Acta Neurobiologiae Experimentalis

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1999

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tom 59

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nr 2

20

Geomorphological conditions of water-air properties in the silt soils from the edge zone of the Carpathian Foothills

63%

Klimek M., Zaleski T., Niemyska-Lukaszuk J.

Acta Agrophysica

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2000

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tom 35

In this paper an attempt to estimate the influence of the relief on the selected physical soil properties from the edge zone of the Carpathian Foothills has been presented.Differentiation of water-air properties related to the location on the slope was evaluated.It results from, both, the main soil forming process-lessivage, erosion and accumulative changes in the morphology of the soil profile.Soils lessives situated on tops and slopes less prone to erosion are characterised by deeper eluvial horizons - luvic with a higher total porosity and water retention in comparison to illuvial horizons - argillic. Eroded lessivé soils occur on the slopes prone to erosion with the argillic horizon outeropped to the surface which determins their properties in the whole soil profile, first of all, their porosity is low and they have a limited capacity for water retention. Gley soils occur in the valley bottoms and synclines of slopes. They arc characterised by higher total porosity and retention in the whole profile in comparison to the lessivé soils.

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