Search results for: Agnieszka Stec

Items from 1 to 11 out of 11 results

article

Antiviral effect of compounds derived from Angelica archangelica L. on Herpes simplex virus-1 and Coxsackievirus B3 infections

Barbara Rajtar, Krystyna Skalicka-Woźniak, Łukasz Świątek, Agnieszka Stec, more

Food and Chemical Toxicology > 2017 > 109 > P2 > 1026-1031

The dichloromethane extract from fruits of Angelica archangelica L. was separated by the modern high-performance countercurrent chromatography (HPCCC). The extract and five pure compounds: xanthotoxin, bergapten, imperatorin, phellopterin and isoimperatorin, and the mixture of imperatorin and phellopterin, have been studied as the potential antiviral agents against Herpes simplex virus type l and...

article

Analysing the financial efficiency of use of water and energy saving systems in single-family homes

Agnieszka Stec, Sabina Kordana, Daniel Słyś

Journal of Cleaner Production > 2017 > 151 > C > 193-205

Increasing demand for water and energy sources, accompanied by continued increases in the prices of these sources, has been observed worldwide. This has resulted in the need to seek alternative sources. In response to this statement, a cost-effective analysis has been carried out to enable the use of selected systems to reduce demands for potable water and natural gas used for heating in single-family...

article

Salivary and serum IL-10, TNF-α, TGF-β, VEGF levels in oropharyngeal squamous cell carcinoma and correlation with HPV and EBV infections

Małgorzata Polz-Dacewicz, Małgorzata Strycharz-Dudziak, Jakub Dworzański, Agnieszka Stec, more

Infectious Agents and Cancer > 2016 > 11 > 1 > 1-8

Background Each year approximately 6,000 new cases of head and neck cancer are registered in Poland. Human papillomavirus (HPV) and Epstein-Barr virus (EBV) have been associated with tumour formation. Cytokines have been shown to play an important role both in inflammation and carcinogenesis and they can be detected in saliva and serum with ELISA assays. Salivary biomarkers may be used as markers...

article

Analysis of profitability of rainwater harvesting, gray water recycling and drain water heat recovery systems

Agnieszka Stec, Sabina Kordana

Resources, Conservation and Recycling > 2015 > 105 > PA > 84-94

Gray water recycling and economical use of rainwater can be a valuable alternative source of water, especially for non-potable uses. These sources are seen as the basis of change in waters management, which gives a possibility of protection of still shrinking water resources. Taking into account continuing urbanization and population growth in the world, not only the management of water resources...

article

Prevalence of Human papillomavirus (HPV) and Epstein-Barr virus (EBV) in oral and oropharyngeal squamous cell carcinoma in south-eastern Poland

Dorota Polz-Gruszka, Kamal Morshed, Agnieszka Stec, Małgorzata Polz-Dacewicz

Infectious Agents and Cancer > 2015 > 10 > 1 > 1-7

Objective The aim of this study was to analyze the prevalence of HPV and EBV in oral and oropharyngeal squamous cell carcinoma in south-eastern Poland. The correlation between viral infection, OSCC, alcohol use, tobacco smoking, demographic data (gender, age, place of residence), anatomic location, pre-treatment staging, evidence of metastases to lymph nodes, and grading was also investigated. Methods...

article

3D Reconstitution of the Patterned Neural Tube from Embryonic Stem Cells

Andrea Meinhardt, Dominic Eberle, Akira Tazaki, Adrian Ranga, more

Stem Cell Reports > 2014 > 3 > 6 > 987-999

Inducing organogenesis in 3D culture is an important aspect of stem cell research. Anterior neural structures have been produced from large embryonic stem cell (ESC) aggregates, but the steps involved in patterning such complex structures have been ill defined, as embryoid bodies typically contained many cell types. Here we show that single mouse ESCs directly embedded in Matrigel or defined synthetic...

article

Optimization of The Hydraulic System of The Storage Reservoir Hydraulically Unloading The Sewage Network

Agnieszka Stec, Daniel Słyś

Ecological Chemistry and Engineering S > 2014 > 21 > 2 > 215-228

After presentation of the characteristics of a water reservoir in CaCO3 excavation pit, called the Turkusowe Lake, situated in the Wolin National Park on the Wolin Island, available results of the analyses referring to the quality of surface water of this water reservoir and being carried out since 1986 as well as those of own studies being carried out from 1999 to 2010 were gathered, collecting this...

article

The Analysis of Variants of Water Supply Systems in Multi-Family Residential Building

Daniel Słyś, Agnieszka Stec

Ecological Chemistry and Engineering S > 2014 > 21 > 4 > 623-635

Climate change, improper use of water resources, surface waters pollution as well as increase of water requirements are the results of growing population of people in the world. It causes water deficiency in majority of countries in the world, including Poland. Due to the water pollution advanced technologies for its treatment are in demand, what leads to increase of water price. In this connection,...

article

Polityka Czechosłowacji wobec zagadnienia ukaińsiego w kontekście stosunków czechosłowacko- polskich w latach 1918-1938. Zarys problematyki.

Agnieszka Stec

Przegląd Geopolityczny > 2014 > 8 > 63-83

Zagadnienie ukraińskie stanowiło stały element w stosunkach polskoczechosłowackich w latach 1918–1939. Należy jednak postrzegać go w odpowiednich proporcjach na tle całokształtu skomplikowanego problemu wzajemnych relacji między tymi krajami. A były one uwarunkowane przede wszystkim przeciwstawnością celów polityki zagranicznej obu państw oraz sporami granicznymi. Ponadto Czesi byli przekonani, iż...

article

Effect of Development of the town of Przemysl on Operation of its Sewerage System

Agnieszka Stec, Daniel Słyś

Ecological Chemistry and Engineering S > 2013 > 20 > 2 > 381-396

The paper presents the results of the analysis of the sewage system functioning in the city of Przemysl. It was assumed that, as a result of joining to the city new areas, the volume of stormwater discharged to existing combined sewer system would increase continuously. The information about the areas that are planned to be joined was drawn from current development plan of the city. On the basis of...

article

A LCC Analysis of Rainwater Management Variants

Daniel Słyś, Agnieszka Stec, Martina Zeleňáková

Ecological Chemistry and Engineering S > 2012 > 19 > 3 > 359-372

The paper presents results of the Life Cycle Cost (LCC) analysis carried out for several variants of rainfall water management in a newly designed multi-family dwelling house. According to the LCC methodology, calculations were performed for the whole undertaking life cycle with both investment outlays and operation/maintenance costs taken into account. The LCC analysis was carried out, in particular,...

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