Katowice, Poland

Katowice School of Economics

www.gwsh.pl
Katowice, Poland

Time filter

Source Type

Koprowski R.,University of Silesia | Wilczynski S.,Katowice School of Economics | Samojedny A.,Katowice School of Economics | Wrobel Z.,University of Silesia | Deda A.,Womans corner
BioMedical Engineering Online | Year: 2013

Background: Efficacy and safety of various treatments using fractional laser or radiofrequency depend, to a large extent, on precise movement of equipment head across the patient's skin. In addition, they both depend on uniform distribution of emitted pulses throughout the treated skin area. The pulses should be closely adjacent but they should not overlap. Pulse overlapping results in amplification of irradiation dose and carries the danger of unwanted effects.Methods: Images obtained in infrared mode (Flir SC5200 thermovision camera equipped with photon detector) were entered into Matlab environment. Thermal changes in the skin were forced by CO2RE laser. Proposed image analysis and processing methods enable automatic recognition of CO2RE laser sites of action, making possible to assess the correctness of performed cosmetic procedures.Results: 80 images were acquired and analyzed. Regions of interest (ROI) for the entire treatment field were determined automatically. In accordance with the proposed algorithm, laser-irradiated Li areas (ROI) were determined for the treatment area. On this basis, error values were calculated and expressed as percentage of area not covered by any irradiation dose (δo) and as percentage area which received double dose (δz). The respective values for the analyzed images were δo=17.87±10.5% and δz=1.97±1.5%, respectively.Conclusions: The presented method of verifying the correctness of performing low-invasive esthetic medical (cosmetic) procedures has proved itself numerous times in practice. Advantages of the method include: automatic determination of coverage error values δo and δz, non-invasive, sterile and remote-controlled thermovisual mode of measurements, and possibility of assessing dynamics of patient's skin temperature changes. © 2013 Koprowski et al.; licensee BioMed Central Ltd.


Poreba G.J.,Silesian University of Technology | Snieszko Z.,Katowice School of Economics | Moska P.,Silesian University of Technology
Quaternary International | Year: 2013

Although colluvium is a valuable record of past human impact, there is a lack of a precise method of age determination. The luminescence method could be used, but the basic difficulty is partial bleaching of quartz grains. In this study, colluviums from southern Poland were investigated using the OSL method. All examples for this study are colluviums deposited on Holocene fossil soils in dry valleys. In all cases, the area of research has been very well recognized in terms of archaeological significance. The youngest 50-year old colluviums were also studied using the 137Cs method. The obtained luminescence results are in stratigraphic order and in good agreement with archaeological data and 14C dating. The dated sediment samples are usually well bleached. This is not due to transportation on the slope but rather from mixing by ploughing or bioturbation. OSL dating results together with distributions may therefore be helpful in determining the origin of colluvium. This is not possible by examination of macroscopic lithogenetic characteristics, as the diagnostic sedimentary structures of colluvium were destroyed by postsedimentation soil processes. The results confirmed that soil erosion started in the Neolithic. © 2012 Elsevier Ltd and INQUA.


Letkiewicz S.,Katowice School of Economics | Gorski A.,Medical University of Warsaw | Gorski A.,Polish Academy of Sciences
Science and Engineering Ethics | Year: 2010

The technological advances of the 20th century resulted in the creation of the Internet and its introduction into everyday life on a global scale. The Internet provides access to information and the sale and purchase of goods. Medications are also subject to trade. Their sale is conducted by online pharmacies and their global turnover amounts to hundreds of billions of dollars. Medications ordered over the Internet are sent by mail all over the world. Considering the events of recent years, we cannot exclude the risk of a terrorist attack through online pharmacies. Terrorists can establish such companies, legally or illegally, or acquire ones already existing. Parcels, which are highly trusted by the customers of online pharmacies, can, for example, be contaminated with dangerous materials. The sale of online medications in the international system is potentially dangerous and requires international regulation. © Springer Science+Business Media B.V. 2009.


Dembinska A.,Katowice School of Economics
Journal of Reproductive and Infant Psychology | Year: 2014

The aim of the study was to understand and analyse psychological costs of a life crisis in women treated for infertility.Infertility constitutes a hardship that may be treated as a crisis situation for the women experiencing it.The study has been conducted using mixed methodology. It encompassed hermeneutic approach for the analysis of narration, supplemented with a projective technique, as well as qualitative methods: original Inventory of Psychological Costs in Infertility and Scale of Attitudes towards Bio-Ethical Problems in Infertility, Basic Hope Inventory.The hermeneutic analysis identified 18 types of psychological costs, which were later confirmed during quantitative analyses. Statistically significant relationships were found between psychological costs and basic hope (r = -0.369; p < 0.01), length of treatment (the longer the infertility treatment, the higher psychological costs) and methods of treating infertility (the more advanced the method, the higher psychological costs). In the hermeneutic analyses, lability of hope as an emotional state was identified as the most important of all psychological costs - decrease of hope as an emotional states leads to more intense experiencing of the other costs (statistically proven).Identification of psychological costs allows for multidimensional perception of infertility treatment as a crisis situation, thus providing opportunities to offer better psychological help for patients seeking remedy for their condition. What is also important is the role of hope treated both as an emotional state, and as a trait: basic hope. © 2014 © 2014 Society for Reproductive and Infant Psychology.


Dembinska A.,Katowice School of Economics
Journal of Medical Ethics | Year: 2012

Infertility Accepted treatment is replete with bioethical dilemmas regarding the limits of available medical therapies. Poland has no legal acts regulating the ethical problems associated with infertility treatment and work on such legislation has been in progress for a long time, arousing very intense emotions in Polish society. The purpose of the present study was to find out what Polish women undergoing infertility treatment think about the most disputable and controversial bioethical problems of assisted reproduction. An Attitudes towards Bioethical Problems of Infertility Scale was constructed specifically for this study. Items were taken from the Bioethics Bills currently under discussion in Polish Parliament (Seym). 312 women were enrolled in the study. Women experiencing infertility favoured more liberal legislation. Participants disagreed, for example, with the following regulations: prohibition of embryo freezing, prohibition of preimplantation genetic diagnosis of embryos, age limits for women using in vitro fertilisation and prohibition of in vitro fertilisation for single women. The opinions of patients undergoing infertility treatment are an important voice in the Polish debate on the Bioethics Bills.


Wieczorek B.,Katowice School of Economics
Advances in Intelligent and Soft Computing | Year: 2011

The vehicle routing problem with time windows (VRPTW) is a combinatorial optimization problem in which the number of vehicles and the total distance travelled by the vehicles are to be minimized. The objective of this work is to improve the parallel algorithm of independent searches to get a better accuracy of solutions to the problem. The accuracy of solutions is measure by their proximity to the best solution found so far. The algorithm of independent searches with constant length of the cooling stage (ISC) is proposed. The computational experiments were carried out on the R109, R110 and R202 test instances by Solomon. © 2011 Springer-Verlag Berlin Heidelberg.


Zemla M.,Katowice School of Economics
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis | Year: 2012

Mountain areas in Poland constitute a special territory with respect to physico-geographical, economic and social aspects. There are specific environmental, economic and cultural conditions, which on one hand restrain and on the other provide chances of these areas development. Environmental conditions involve higher economic costs mainly in agriculture but also in other fields, such as construction or transportation. Other characteristics of these areas include landscape values which just through development of tourism can at least partially recompense the local communities the limited opportunities of gaining incomes. Thus increasing the competitiveness of the tourism product of mountain areas in line with principles of sustainable development remains among the basic topics concerned by local, regional and national authorities, when dealing with socio-economic development of those areas. In order that an individual commune may use tourism as a driving force for local socio-economic development, in the first place there must be conditions favourable for practising various forms of tourism (bases for starting and then intensifying the tourist movement are necessary prerequisites), secondly opportunities must be opened up for creating various enterprises connected with tourism and providing services for tourists, and capable of meeting increased needs of local communities. Conditions (factors) determining mountain communes predisposition for undertaking and realisation of development through tourism may be either of external or internal character. A detailed analysis was conducted in the paper only on the internal conditions. These conditions were analysed considering their diversified character, which was presented as identification of partial conditions, i.e. infrastructural, economic, environmental (natural and anthropogenic) and social conditions characterised by individual diagnostic features.


Grzybowski S.J.,Jagiellonian University | Wyczesany M.,Jagiellonian University | Kaiser J.,Katowice School of Economics
Biological Psychology | Year: 2014

The study investigated brain responses to emotional and neutral adjectives within contexts of varying emotional valence. Participants were randomly assigned to 3 context groups where they viewed random sequences of emotional and neutral adjectives intermixed with: emotional pictures (emotional context), neutral pictures (neutral context) and blank screens (zero context). Within the emotional context group the P3 potential was more pronounced in response to positive than either negative or neutral adjectives, and positive picture context impacted positive and negative adjectives differently. In the neutral context group the P2 and P3 potentials were greater in response to the positive adjectives as compared to the neutral ones. There was also a greater negativity of the N400 potential in response to the neutral adjectives. Within the zero context group only the N400 effect was visible. The seeming preference for positive words can be explained in terms of the specific positivity offset phenomenon. © 2014 Elsevier B.V.


Wyczesany M.,Jagiellonian University | Grzybowski S.J.,Jagiellonian University | Kaiser J.,Katowice School of Economics
Journal of Psychophysiology | Year: 2015

In the study, the neural basis of emotional reactivity was investigated. Reactivity was operationalized as the impact of emotional pictures on the self-reported ongoing affective state. It was used to divide the subjects into high- and low-responders groups. Independent sources of brain activity were identified, localized with the DIPFIT method, and clustered across subjects to analyse the visual evoked potentials to affective pictures. Four of the identified clusters revealed effects of reactivity. The earliest two started about 120 ms from the stimulus onset and were located in the occipital lobe and the right temporoparietal junction. Another two with a latency of 200 ms were found in the orbitofrontal and the right dorsolateral cortices. Additionally, differences in pre-stimulus alpha level over the visual cortex were observed between the groups. The attentional modulation of perceptual processes is proposed as an early source of emotional reactivity, which forms an automatic mechanism of affective control. The role of top-down processes in affective appraisal and, finally, the experience of ongoing emotional states is also discussed. © 2015 Hogrefe Publishing.


Zemla M.,Katowice School of Economics
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis | Year: 2013

Destination branding is one of the most popular topic among tourism destinations researchers and practitioners however recent research revealed that it is a concept not clear. The purpose of presented paper is to enhance destination branding theory by introducing some new elements taken from other popular concepts used in destination management into destination branding theory. The concept of destination brand licensing was undertaken as a response to several critical argument raised against the existing idea of destination branding. However the concept is yet not finished and practical examples presented so far need scientific generalization to prepare some guidelines on successful procedure of implementing destination brand licensing. The example of Polish brand Porta Lubavia is going to be presented as a illustration of some of potential benefits and problems connected with implementing this concept into a practice.

Loading Katowice School of Economics collaborators
Loading Katowice School of Economics collaborators