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1
Content available Productivity paradox in polish food production industry
100%
Jałowiecki P. , Gostkowski M.
Information Systems in Management
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2013
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tom Vol. 2, No. 4
263--273
EN
This paper presents the results of studies of the relationship between level of advancement of IT solutions used in Polish enterprises of food processing and the company's financial situation, logistic costs, position on the market against the sector, and quality of IT support of logistics. The results showed no significant correlation between IT solutions advancement level and financial situation, and logistic costs. These results corresponds with the productivity paradox signaled in the literature. However, there was an average correlations between the IT solutions advancement level and position on the market against the sector, and quality of IT support of logistics. The studies used the results of a survey conducted in 2009-2011 among Polish food processing sector enterprises.
2
Content available Pozycja rynkowa a stan zaawansowania rozwiązań informatycznych w polskim sektorze przetwórstwa rolno-spożywczego
100%
Jalowiecki P. , Gostkowski M.
Roczniki Naukowe Stowarzyszenia Ekonomistów Rolnictwa i Agrobiznesu
|
2013
|
tom 15
|
nr 5
PL
Przedstawiono wyniki badań zależności pomiędzy pozycją rynkową przedsiębiorstwa a stopniem zaawansowania rozwiązań informatycznych wykorzystywanych w polskich przedsiębiorstwach przetwórstwa rolno-spożywczego. Zbadano również zależność pomiędzy stopniem wspomagania informatycznego działalności logistycznej a poziomem zaawansowania rozwiązań informatycznych w przedsiębiorstwie. Wyniki badań wykazały dodatnią korelację pomiędzy wielkością zatrudnienia w przedsiębiorstwach a stopniem zaawansowania stosowanych rozwiązań informatycznych. Stwierdzono również silną zależność pomiędzy stopniem wspomagania informatycznego w działalności logistycznej a poziomem zaawansowania rozwiązań informatycznych dla całej próby, a także w zależności od branży i wielkości przedsiębiorstwa. W badaniach wykorzystano wyniki ankiety przeprowadzonej w latach 2009-2011 wśród przedsiębiorstw polskiego sektora przetwórstwa rolno-spożywczego.
EN
In this paper an attempt has been made to examine the correlation between the market position of the company on the one hand and the stage used solutions from other companies in the Polish food processing industry. In addition, the analysis was extended to examine the relationship between the degree of computer aided logistics activities and the level of advancement of IT solutions in the enterprise. It was found that with the increase in the number of employees in enterprises increased correlation between market power and the stage of solutions. It was also a strong correlation between the degree of support information in the logistics and the level of play solutions for the entire sample and depending on the sector or company size. The analysis uses the results of surveys carried out in 2009-2011 for the Polish sector of the food processing industry.
3
Content available Overrepresentation maps as a tool to analysis of expenditure structure
100%
Gostkowski M. , Sieradzki D.
|
2018
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tom 17
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nr 1
4
Content available Elastyczność dochodowa popytu na poszczególne grupy dóbr konsumpcyjnych w Polsce w latach 1999-2008
80%
Gostkowski M. , Gajowniczek K. , Jalowiecki P.
|
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nr 3
PL
Przedstawiono wyniki badań zależności pomiędzy wydatkami na poszczególne grupy dóbr konsumpcyjnych a poziomem dochodów. Badania przeprowadzono w okresie od 1999 do 2008 roku w rozróżnieniu na poszczególne lata i liczbę osób w gospodarstwie. Wykorzystano dane pochodzące z badań budżetów gospodarstw domowych prowadzonych przez GUS. Stwierdzono, że wszystkie wydatki miały współczynnik elastyczności dochodowej większy od zera. Dodatkowo w badanym okresie wydatki na transport, kulturę i rekreację oraz pozostałe wydatki na towary i usługi miały współczynnik elastyczności dochodowej zbliżony do jedności. Ponadto wraz ze wzrostem liczby osób w gospodarstwie domowym zmniejszały się wydatki na zdrowie i edukację, co może oznaczać, że dane potrzeby były niezaspokojone.
EN
The paper presents the results of the relationship between expenditures on different groups of consumption goods and the level of income study. The research was conducted in the period from 1999 to 2008, distinguishing for each year and the number of persons in the household. The results indicate that all income elasticity coefficient are greater than zero. In addition, in the analyzed period expenditure on transportation, expenditure on culture and recreation, and other expenditures on goods and services have income elasticity coefficient close to 1. In addition, with the increase of the number of people in the household, expenditure on health and education are reduced, which may mean that these needs are unmet. In the research, the data from the Household Budget Survey conducted by the Central Statistical Office were used.
5
Content available A comparison of logistics infrastructure development level of European Union countries using TOPSIS and VIKOR methods
80%
Koszela G. , Gostkowski M. , Ochnio L. , Kostoglou V.
|
2020
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nr 5[1]
6
Content available remote The usefulness of birch saps from the area of Podkarpacie to produce birch syrup
80%
Bilek M. , Olszewski M. , Gostkowski M. , Cieślik E.
Biotechnology and Food Science
|
2016
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tom Vol. 80, nr 1
11--18
EN
In northern European countries, as well as in North America tree saps of maples and birches are used for the production of syrups. Birch syrups are characterized by a specific aromatic taste and can be used as an addition to sweets, desserts, salads and meats. Attention is paid to the health benefits of birch syrups, mainly for high mineral content. The aim of this study was to evaluate the usefulness of birch saps obtained from the area of Podkarpacie for birch syrup production. HPLC-ELSD system was used for analysing the sugar content in the birch tree saps from four localization. All the examined saps contained the monosaccharides as fructose and glucose. The presence of sucrose was found in eight per twenty tested saps. There weren’t statistical differences between the studied sites for the averages of total sugar concentration in the tree saps samples. The highest average amount of total sugar was found in the D sites (11.74 g/dm3), whereas the lowest in the C sites (7.66 g/dm3). Silver birch tree saps from the area of Podkarpacie offer perspectives to used for syrup production according to the US and Finnish criteria of profitability.
7
Content available Zastosowanie drzew klasyfikacyjnych do badania kondycji finansowej przedsiębiorstw sektora rolno-spożywczego
80%
Gajowniczek K. , Zabkowski T. , Gostkowski M.
Roczniki Naukowe Stowarzyszenia Ekonomistów Rolnictwa i Agrobiznesu
|
2014
|
tom 16
|
nr 6
PL
Celem pracy była empiryczna weryfikacja przydatności wykorzystania modeli klasyfikacyjnych do oceny kondycji finansowej przedsiębiorstw sektora rolno-spożywczego oraz na ich podstawie wyznaczenie determinant poziomu kondycji finansowej badanych przedsiębiorstw. Badania oparto na wynikach ankiet przeprowadzonych w latach 2009-2011 w 501 przedsiębiorstwach. Sytuacja finansowa jest jedną z najistotniejszych kwestii dla zarządzania przedsiębiorstwem. Problemy finansowe przedsiębiorstwa mogą przyczynić się do niewypłacalności, dlatego analiza kondycji finansowej jest niezbędna nie tylko do bieżącego zarządzania, ale także do uchronienia przed negatywnymi skutkami spadku koniunktury. Dostrzeżone odpowiednio wcześnie sygnały ostrzegawcze i podjęte na ich podstawie decyzje mogą zapobiec upadłości przedsiębiorstwa.
EN
Financial situation is one of the most important issue for the managers. Financial problems of the enterprises could threaten insolvency that is why the analysis of financial standing is essential not only for current management, but also for protection before side effects of economic downturn. Early enough recognition of warning signals and good decisions can prevent the liquidation of the companies. The aim of this article is the empirical verification of the suitability of the use of predictive classification models to assess the financial condition of companies in the agri-food sector and based on their, the appointment of the determinants affecting the level of the financial condition of the researched companies.
8
Content available Galasy rodzimych gatunków dębu jako potencjalny surowiec garbnikowy
80%
Bilek M. , Kozlowska-Tylingo K. , Gostkowski M. , Staniszewski P.
|
|
tom 163
|
nr 09
EN
Oak gall−nuts are pathological excrescences on the leaves of oaks (in Poland: Quercus robur L. and Q. petraea Liebl.) created by the Cynips quercusfolii L. The potential medical use of these non−wood forest products should be taken under consideration because of widespread use in folk medicine, but also because of the presence of gall−nuts of Middle Eastern oak species Quercus infectoria in the current Farmakopea… [2017]. The aim of this study was the preliminary analyzes of Quercus robur L. galls in the context of the diversity of the raw material and its possible consequences for the variability in tannin content, and therefore for the therapeutic value. The galls were collected in September 2018 from five living trees forming compact mid−field tree plantation in Podkarpackie Region (SE Poland). To determine the tannin content, hide powder method was used, while mass spectrometry was used for determining the identity of the raw material. The tannin content was found to be between 10.02 ±0.2% and 15.47 ±0.07%. There were no statistical differences between the tannin content of four weight groups of tested gall−nuts. The analysis of mass spectra showed the presence of gallic acid and tannin disintegration products. The results indicate that the tannin content in domestic oak galls is lower than in Quercus infectoria ones, for which less than 20% is required, however Polish galls are still the richest native tannin raw material. It was not proved that the content of tannins in oak galls was influenced by their size. A large variation in tannin content depending on the sample suggests that it might be possible to identify i.e. forest sites or climatic zones, where the obtained gall−nuts will be characterized by the high tannin content.
9
Content available Regional diversification of expenditure structure in Poland: a GCA approach
80%
Gostkowski M. , Jalowiecki P. , Tekien A.
|
|
nr 4
10
Antioxidative capacity of birch saps
71%
Bilek M. , Siembida A. , Gostkowski M. , Stawarczyk K. , Cieslik E.
|
|
nr 1
11
Content available Antioxidative capacity of birch saps
71%
Bilek M. , Siembida A. , Gostkowski M. , Stawarczyk K. , Cieślik E.
Biotechnology and Food Science
|
2017
|
tom Vol. 81, nr 1
3--10
EN
In our subsequent studies of birch tree saps we focused on assessing their antioxidant capacity. For research we chose four groups of silver birch trees (Betula pendula Roth.), consisting of five individuals. Antioxidant capacity was examined using spectrophotometric technique. The highest antioxidant capacity, tested by the Folin-Ciocalteau method and expressed as a total phenolics content was 6.59 mg GAE/100 ml of tree sap, and in turn the lowest one 0.88 mg GAE/100 ml. The highest antioxidant capacity determined ABTS method and expressed as radical scavenging activity (RSA) was 30.9% and lowest 5.38% The average values of antioxidant capacity both expressed as a phenolic compounds content and as radical scavenging activity for tree saps collected from four particular locations did not differ significantly. Based on the obtained results of tree sap analyses, it can be claimed that compared to other food products, e.g. fruit and vegetable juices, birch saps are not a rich source of phenolic compounds and when compared e.g. to tee infusions, they have low antioxidant capacity. Although it can be increased by the introduction of functional additives, such as herbal extracts or concentrated fruit juices.
12
Content available Wpływ wybranych czynników na zawartość składników mineralnych w soku brzozy brodawkowatej (Betula pendula Roth)
61%
Staniszewski P. , Bilek M. , Szwerc W. , Gostkowski M. , Osiak P. , Zurek N. , Kocjan R.
Sylwan
|
2020
|
tom 164
|
nr 05
EN
The aim of this study was to determine the content of selected minerals in silver birch sap, and to examine whether the tree thickness (DBH), the obtained daily volume of sap and the date of collection have an impact on their content. The study was carried out in central−eastern Poland, in the Garwolin Forest District, in a stand with a dominant share of silver birch at the age of 65, which grows on a moist mixed broadleaved forest habitat type. Sap from the selected trees was taken after 24 hours of leakage, four times, at weekly intervals. In each case, the daily sap volume was measured and the content of zinc, copper, and manganese was determined. As a result, no effect of tree diameter on the content of the studied elements was found. However, a negative relationship was stated between copper content and daily sap volume. Moreover, birch sap was characterized by increasing concentration of zinc and copper over time. The obtained results of the determination of the content of minerals in birch sap testify to the fact that it is characterized by high nutritional value. However, the large variability in its composition means that in order to obtain such benefits it is necessary to combine sap taken from as many trees as possible, while sap collected from only one tree may have a negligible nutritional value.
13
Content available Zawartość wybranych metali ciężkich w soku brzozy brodawkowatej (Betula pendula Roth) oraz dobowa objętość pozyskanego soku w zależności od pierśnicy drzew
61%
Staniszewski P. , Bilek M. , Szwerc W. , Gostkowski M. , Osiak P. , Poleszak J. , Kocjan R.
Sylwan
|
2020
|
tom 164
|
nr 05
EN
The aim of this study was to determine the content of selected heavy metals in birch sap, and to examine whether the tree diameter, the obtained daily sap volume and the date of collection have an impact on their content. Moreover, it was decided to check whether the tree diameter could affect the intensity of the sap leak. The study was carried out in central−eastern Poland, in the Garwolin Forest District, in a stand with a dominant share of silver birch at the age of 65, which grows on a moist mixed broadleaved forest habitat type. Sap from the selected trees was taken after 24 hours of leakage, four times at weekly intervals. In each case, the daily sap volume was measured and the content of lead, nickel, chromium and cadmium was determined. No effect of tree diameter on the content of the studied elements was found. We also proved that the tree thickness had an impact on the daily sap volume. However, a negative relationship was stated between lead and cadmium content and daily sap volume. In turn, over time, birch sap was characterized by increasing concentration of lead and cadmium, while in the case of nickel downward trend was shown for two diameter classes. The obtained results of the determination of the content of heavy metals in birch sap testify to the fact that for most of samples it is characterized by health safety. However, few exceedances of the most restrictive potable water as well as fruit juices and nectars standards are encountered, confirming the susceptibility of birch sap to heavy metal pollution. Therefore, in order to guarantee the safety of consumers, primarily it is necessary to select the collection points taking into account potential industrial and agricultural pollution and secondly – combining birch sap taken from as many trees as possible in order to average a very large variation in the content of heavy metals, both between individual trees and over time. It should also be noted that consuming birch sap taken from only one tree may pose a threat to the health safety of consumer.
14
Content available Metabolic activity of tree saps of different origin towards cultured human cells in the light of grade correspondence analysis and multiple regression modeling
61%
Wnorowski A. , Bilek M. , Stawarczyk K. , Gostkowski M. , Olszewski M. , Wojciak-Kosior M. , Sowa I.
Acta Societatis Botanicorum Poloniae
|
2017
|
tom 86
|
nr 2
EN
Tree saps are nourishing biological media commonly used for beverage and syrup production. Although the nutritional aspect of tree saps is widely acknowledged, the exact relationship between the sap composition, origin, and effect on the metabolic rate of human cells is still elusive. Thus, we collected saps from seven different tree species and conducted composition-activity analysis. Saps from trees of Betulaceae, but not from Salicaceae, Sapindaceae, nor Juglandaceae families, were increasing the metabolic rate of HepG2 cells, as measured using tetrazolium-based assay. Content of glucose, fructose, sucrose, chlorides, nitrates, sulphates, fumarates, malates, and succinates in sap samples varied across different tree species. Grade correspondence analysis clustered trees based on the saps’ chemical footprint indicating its usability in chemotaxonomy. Multiple regression modeling showed that glucose and fumarate present in saps from silver birch (Betula pendula Roth.), black alder (Alnus glutinosa Gaertn.), and European hornbeam (Carpinus betulus L.) are positively affecting the metabolic activity of HepG2 cells.
15
Content available Mineral content of tree sap from the Subcarpathian region
61%
Bilek M. , Stawarczyk K. , Gostkowski M. , Olszewski M. , Kedziora K. M. , Cieslik E.
Journal of Elementology
|
2016
|
tom 21
|
nr 3
EN
Tree sap has been used for centuries not only as a source of nutrients available in early spring but also as medicinal substance in folk medicine. Traditionally, it was used to treat various conditions, mostly anaemia and chronic fatigue. This study has been designed to establish the content of metallic elements (sodium, potassium, calcium, magnesium, zinc and copper) in sap collected from eight different species (silver birch, downy birch, hornbeam, Norway maple, boxelder maple, black walnut, black alder and white willow) and to identify which sap has mineral content which would be most beneficial for human health. We measured concentrations of calcium, magnesium, sodium, potassium and zinc on an atomic absorption spectrometer equipped with single-element, hollow cathode lamps and an air/acetylene burner. The content of copper was determined using an atomic absorption spectrometer with Zeeman correction equipped with an electrothermal atomizer and argon as inert gas. White willow sap was determined to have the highest concentrations of magnesium, zinc, calcium and potassium. Moreover, this sap contained the lowest concentration of sodium among all the tree species. The sap with the lowest detected concentration of the metallic elements originated from black alder and boxelder. In conclusion, tree sap can be a valuable source of metallic elements, namely copper, zinc and magnesium, in human diet. Tree sap tapped from white willow is the most valuable in terms of its mineral content. Moreover, the most popular sap of sliver birch has proven to be a rich source of magnesium and zinc
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