28 results on '"Malkiewicz M"'
Search Results
2. Spatial variations in the dynamics of the Alnus and Corylus pollen seasons in Poland
- Author
-
Myszkowska, D., Jenner, B., Puc, M., Stach, A., Nowak, M., Malkiewicz, M., Chłopek, K., Uruska, A., Rapiejko, P., Majkowska-Wojciechowska, B., Weryszko-Chmielewska, E., Piotrowska, K., and Kasprzyk, I.
- Published
- 2010
- Full Text
- View/download PDF
3. An analysis of QTc prolongation and associated factors in Parkinson's disease patients
- Author
-
Malkiewicz, J., primary, Malkiewicz, M., additional, and Siuda, J., additional
- Published
- 2020
- Full Text
- View/download PDF
4. Does the start of the alder and hazel pollen seasons influence their other pollution parameters?: 10
- Author
-
Myszkowska, D, Jenner, B, Puc, M, Stach, A, Malkiewicz, M, Chlopek, K, Latalowa, M, Uruska, A, Rapiejko, P, Majkowska-Wojciechowska, B, Weryszko-Chmielewska, E, Piotrowska, K, and Kasprzyk, I
- Published
- 2009
5. The role of pollen in forest throughfall biochemistry
- Author
-
Verstraeten, A., Gottardini, E., Bruffaerts, N., de Vos, B., Vanguelova, E., Cristofolini, F., Benham, S., Rautio, P., Ukonmaanaho, L., Merilä, P., Saarto, A., Waldner, P., Hendrickx, M., Genouw, G., Roskams, P., Cools, N., Neirynck, J., de Haeck, A., de Bodt, Y., Nussbaumer, A., Neumann, M., Clarke, N., Timmermann, V., Hansen, K., Dietrich, H.P., Nicolas, M., Schmitt, M., Thimonier, A., Meusburger, K., Schüler, S., Kowalska, A., Kasprzyk, I., Borycka, K., Grewling, K., Święta-Musznicka, J., Latałowa, M., Zimny, M., Malkiewicz, M., Vesterdal, L., Thomsen, I.M., Manninger, M., and Titeux, H.
- Subjects
ICP Forests ,Pollen ,Settore BIO/03 - BOTANICA AMBIENTALE E APPLICATA - Published
- 2019
6. Markers of inflammation and fibrosis in alcoholic hepatitis and viral hepatitis C
- Author
-
Neuman, M.G., primary, Katz, G.G., additional, Baig, A.A., additional, Moussa, G., additional, Mazzulli, T., additional, Malkiewicz, M., additional, Trepo, C., additional, Bourliere, M., additional, Schmilovitz-Weiss, H., additional, Ben-Ari, Z., additional, and Cohen, L., additional
- Published
- 2011
- Full Text
- View/download PDF
7. HCV-RNA and inflammasome is modulated by PEGylated interferon (PEG-IFNα-2b) monotherapy in chronic hepatitis c patients
- Author
-
Manuela, G. Neuman, primary, Katz, Gadi G., additional, Patel, Ankit, additional, Malkiewicz, M. Izabella, additional, and Esguerra, Rustan, additional
- Published
- 2010
- Full Text
- View/download PDF
8. Circulating biomarker prediction of fibrosis in patients with both hepatitis C and alcoholic liver disease
- Author
-
Neuman, M.G., primary, Malkiewicz, M., additional, and Bourliere, M., additional
- Published
- 2008
- Full Text
- View/download PDF
9. RESPONSE OF TOMATO GENOTYPES TO SALINITY STRESS ASSESSED AT THE SEEDLINGS STAGE.
- Author
-
Smolik, M., Kram, P., Krupa-Malkiewicz, M., Smolik, B., and Malinowska, K.
- Subjects
TOMATOES ,GENETIC polymorphisms ,CULTIVARS ,SEED pods ,PLANT growth - Abstract
The aim of the study was to characterize phenotype response to salt stress under in vitro conditions of four tomato genotypes: 'Malinowy Ożarowski', 'Pokusa', 'Awizo' F[sub 1] and Lycopersicon chmielewskii LA2678. Tomato seeds were cultured with 0 (control), 50, 75, 100 and 125 mmolxdm[sup -3] NaCl in nutrient solutions. The effect of the stress applied on the morphological traits was evaluated in 14 day-old seedlings. The contents of proline in tomato shoots was also examined. Statistical correlations were found in shoot and root length as well as in the number of roots, with the exception of wild form L. chmielewskii. The analysis of variance showed that the highest shoots were grown on 50 and 100 mmolxdm[sup -3] NaCl solution. The shortest shoots were observed in the control. Longer roots (8.6 cm) were developed by the plants from the solutions containing 100 mmolxdm[sup -3] NaCl, the shortest (6.6 cm) -- 75 mmolxdm[sup -3] NaCl. NaCl concentration in the medium significantly affected the number of tomato roots. However, the number of roots developed by the wild form of tomato L. chmielewskii was significantly lower in comparison with the other examined cultivars (mean 38-47%). The highest accumulation of proline in tomato cultivars was observed at 125 mmolxdm[sup -3] NaCl in nutrient solution and in the wild form at 50 mmolxdm[sup -3] NaCl. [ABSTRACT FROM AUTHOR]
- Published
- 2011
10. Source regions of biogenic aerosols in wrocław (Poland) and the influence of meteorological data on the hysplit model results
- Author
-
Bilińska, D., Skjøth, C. A., Werner, M., Maciej Kryza, Malkiewicz, M., Krynicka, J., and Drzeniecka-Osiadacz, A.
11. Does the start of the alder and hazel pollen seasons influence their other pollution parameters?
- Author
-
Myszkowska, D., Jenner, B., Puc, M., Stach, A., Malkiewicz, M., Chlopek, K., Latalowa, M., Uruska, A., Rapiejko, P., Majkowska-Wojciechowska, B., Elżbieta Weryszko-Chmielewska, Piotrowska, K., and Kasprzyk, I.
12. Vistulian lake deposits in Jaroszow, Sudeten foreland, SW Poland: preliminary results and perspectives for future investigations,Wistulianskie osady jeziorne w Jaroszowie, Przedgorze Sudeckie: wstepne wyniki i perspektywy dalszych badan
- Author
-
Krzyszkowski, D., Krystyna Choma-Moryl, Kuszell, T., Malkiewicz, M., and Pazdur, A.
13. A temporally and spatially explicit, data-driven estimation of airborne ragweed pollen concentrations across Europe.
- Author
-
Makra L, Matyasovszky I, Tusnády G, Ziska LH, Hess JJ, Nyúl LG, Chapman DS, Coviello L, Gobbi A, Jurman G, Furlanello C, Brunato M, Damialis A, Charalampopoulos A, Müller-Schärer H, Schneider N, Szabó B, Sümeghy Z, Páldy A, Magyar D, Bergmann KC, Deák ÁJ, Mikó E, Thibaudon M, Oliver G, Albertini R, Bonini M, Šikoparija B, Radišić P, Josipović MM, Gehrig R, Severova E, Shalaboda V, Stjepanović B, Ianovici N, Berger U, Seliger AK, Rybníček O, Myszkowska D, Dąbrowska-Zapart K, Majkowska-Wojciechowska B, Weryszko-Chmielewska E, Grewling Ł, Rapiejko P, Malkiewicz M, Šaulienė I, Prykhodo O, Maleeva A, Rodinkova V, Palamarchuk O, Ščevková J, and Bullock JM
- Subjects
- Humans, Europe, Pollen, Ambrosia, Allergens
- Abstract
Ongoing and future climate change driven expansion of aeroallergen-producing plant species comprise a major human health problem across Europe and elsewhere. There is an urgent need to produce accurate, temporally dynamic maps at the continental level, especially in the context of climate uncertainty. This study aimed to restore missing daily ragweed pollen data sets for Europe, to produce phenological maps of ragweed pollen, resulting in the most complete and detailed high-resolution ragweed pollen concentration maps to date. To achieve this, we have developed two statistical procedures, a Gaussian method (GM) and deep learning (DL) for restoring missing daily ragweed pollen data sets, based on the plant's reproductive and growth (phenological, pollen production and frost-related) characteristics. DL model performances were consistently better for estimating seasonal pollen integrals than those of the GM approach. These are the first published modelled maps using altitude correction and flowering phenology to recover missing pollen information. We created a web page (http://euragweedpollen.gmf.u-szeged.hu/), including daily ragweed pollen concentration data sets of the stations examined and their restored daily data, allowing one to upload newly measured or recovered daily data. Generation of these maps provides a means to track pollen impacts in the context of climatic shifts, identify geographical regions with high pollen exposure, determine areas of future vulnerability, apply spatially-explicit mitigation measures and prioritize management interventions., Competing Interests: Declaration of competing interest The authors have declared that they have no potential conflict of interest., (Copyright © 2023 The Authors. Published by Elsevier B.V. All rights reserved.)
- Published
- 2023
- Full Text
- View/download PDF
14. Substantial light woodland and open vegetation characterized the temperate forest biome before Homo sapiens .
- Author
-
Pearce EA, Mazier F, Normand S, Fyfe R, Andrieu V, Bakels C, Balwierz Z, Bińka K, Boreham S, Borisova OK, Brostrom A, de Beaulieu JL, Gao C, González-Sampériz P, Granoszewski W, Hrynowiecka A, Kołaczek P, Kuneš P, Magri D, Malkiewicz M, Mighall T, Milner AM, Möller P, Nita M, Noryśkiewicz B, Pidek IA, Reille M, Robertsson AM, Salonen JS, Schläfli P, Schokker J, Scussolini P, Šeirienė V, Strahl J, Urban B, Winter H, and Svenning JC
- Subjects
- Humans, Biodiversity, Pollen, Wood, Trees, Ecosystem, Forests
- Abstract
The extent of vegetation openness in past European landscapes is widely debated. In particular, the temperate forest biome has traditionally been defined as dense, closed-canopy forest; however, some argue that large herbivores maintained greater openness or even wood-pasture conditions. Here, we address this question for the Last Interglacial period (129,000-116,000 years ago), before Homo sapiens -linked megafauna declines and anthropogenic landscape transformation. We applied the vegetation reconstruction method REVEALS to 96 Last Interglacial pollen records. We found that light woodland and open vegetation represented, on average, more than 50% cover during this period. The degree of openness was highly variable and only partially linked to climatic factors, indicating the importance of natural disturbance regimes. Our results show that the temperate forest biome was historically heterogeneous rather than uniformly dense, which is consistent with the dependency of much of contemporary European biodiversity on open vegetation and light woodland.
- Published
- 2023
- Full Text
- View/download PDF
15. Bioaerosols on the atmospheric super highway: An example of long distance transport of Alternaria spores from the Pannonian Plain to Poland.
- Author
-
Grewling Ł, Magyar D, Chłopek K, Grinn-Gofroń A, Gwiazdowska J, Siddiquee A, Ianovici N, Kasprzyk I, Wójcik M, Lafférsová J, Majkowska-Wojciechowska B, Myszkowska D, Rodinkova V, Bortnyk M, Malkiewicz M, Piotrowska-Weryszko K, Sulborska-Różycka A, Rybniček O, Ščevková J, Šikoparija B, Skjøth CA, Smith M, and Bogawski P
- Subjects
- Air Microbiology, Humans, Poland, Seasons, Serbia, Spores, Fungal, Allergens analysis, Alternaria
- Abstract
Alternaria spores are pathogenic to agricultural crops, and the longest and the most severe sporulation seasons are predominantly recorded in rural areas, e.g. the Pannonian Plain (PP) in South-Central Europe. In Poland (Central Europe), airborne Alternaria spore concentrations peak between July and August. In this study, we test the hypothesis that the PP is the source of Alternaria spores recorded in Poland after the main sporulation season (September-October). Airborne Alternaria spores (2005-2019) were collected using volumetric Hirst spore traps located in 38 locations along the potential pathways of air masses, i.e. from Serbia, Romania and Hungary, through the Czech Republic, Slovakia and Ukraine, to Northern Poland. Three potential episodes of Long Distance Transport (LDT) were selected and characterized in detail, including the analysis of Alternaria spore data, back trajectory analysis, dispersal modelling, and description of local weather and mesoscale synoptic conditions. During selected episodes, increases in Alternaria spore concentrations in Poznań were recorded at unusual times that deviated from the typical diurnal pattern, i.e. at night or during morning hours. Alternaria spore concentrations on the PP were very high (>1000 spores/m
3 ) at that time. The presence of non-local Ambrosia pollen, common to the PP, were also observed in the air. Air mass trajectory analysis and dispersal modelling showed that the northwest part of the PP, north of the Transdanubian Mountains, was the potential source area of Alternaria spores. Our results show that Alternaria spores are transported over long distances from the PP to Poland. These spores may markedly increase local exposure to Alternaria spores in the receptor area and pose a risk to both human and plant health. Alternaria spores followed the same atmospheric route as previously described LDT ragweed pollen, revealing the existence of an atmospheric super highway that transports bioaerosols from the south to the north of Europe., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022. Published by Elsevier B.V.)- Published
- 2022
- Full Text
- View/download PDF
16. The impact of data assimilation into the meteorological WRF model on birch pollen modelling.
- Author
-
Werner M, Bilińska-Prałat D, Kryza M, Guzikowski J, Malkiewicz M, Rapiejko P, Chłopek K, Dąbrowska-Zapart K, Lipiec A, Jurkiewicz D, Kalinowska E, Majkowska-Wojciechowska B, Myszkowska D, Piotrowska-Weryszko K, Puc M, Rapiejko A, Siergiejko G, Weryszko-Chmielewska E, Wieczorkiewicz A, and Ziemianin M
- Subjects
- Pollen, Seasons, Temperature, Betula, Meteorology
- Abstract
We analyse the impact of ground-based data assimilation to the Weather Research and Forecasting (WRF) meteorological model on parameters relevant for birch pollen emission calculations. Then, we use two different emission databases (BASE - no data assimilation, OBSNUD - data assimilation for the meteorological model) in the chemical transport model and evaluate birch pollen concentrations. Finally, we apply a scaling factor for the emissions (BASE and OBSNUD), based on the ratio between simulated and observed seasonal pollen integral (SPIn) to analyse its impact on birch concentrations over Central Europe. Assimilation of observational data significantly reduces model overestimation of air temperature, which is the main parameter responsible for the start of pollen emission and amount of released pollen. The results also show that a relatively small bias in air temperature from the model can lead to significant differences in heating degree days (HDD) value. This may cause the HDD threshold to be attained several days earlier/later than indicated from observational data which has further impact on the start of pollen emission. Even though the bias for air temperature was reduced for OBSNUD, the model indicates a start for the birch pollen season that is too early compared to observations. The start date of the season was improved at two of the 11 stations in Poland. Data assimilation does not have a significant impact on the season's end or SPIn value. The application of the SPIn factor for the emissions results in a much closer birch pollen concentration level to observations even though the factor does not improve the start or end of the pollen season. The post-processing of modelled meteorological fields, such as the application of bias correction, can be considered as a way to further improve the pollen emission modelling., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2021 The Authors. Published by Elsevier B.V. All rights reserved.)
- Published
- 2022
- Full Text
- View/download PDF
17. Extension of WRF-Chem for birch pollen modelling-a case study for Poland.
- Author
-
Werner M, Guzikowski J, Kryza M, Malkiewicz M, Bilińska D, Skjøth CA, Rapiejko P, Chłopek K, Dąbrowska-Zapart K, Lipiec A, Jurkiewicz D, Kalinowska E, Majkowska-Wojciechowska B, Myszkowska D, Piotrowska-Weryszko K, Puc M, Rapiejko A, Siergiejko G, Weryszko-Chmielewska E, Wieczorkiewicz A, and Ziemianin M
- Subjects
- Allergens, Europe, Poland, Betula, Pollen
- Abstract
In recent years, allergies due to airborne pollen allergens have shown an increasing trend, along with the severity of allergic symptoms in most industrialized countries, while synergism with other common atmospheric pollutants has also been identified as affecting the overall quality of citizenly life. In this study, we propose the state-of-the-art WRF-Chem model, which is a complex Eulerian meteorological model integrated on-line with atmospheric chemistry. We used a combination of the WRF-Chem extended towards birch pollen, and the emission module based on heating degree days, which has not been tested before. The simulations were run for the moderate season in terms of birch pollen concentrations (year 2015) and high season (year 2016) over Central Europe, which were validated against 11 observational stations located in Poland. The results show that there is a big difference in the model's performance for the two modelled years. In general, the model overestimates birch pollen concentrations for the moderate season and highly underestimates birch pollen concentrations for the year 2016. The model was able to predict birch pollen concentrations for first allergy symptoms (above 20 pollen m
-3 ) as well as for severe symptoms (above 90 pollen m-3 ) with probability of detection at 0.78 and 0.68 and success ratio at 0.75 and 0.57, respectively for the year 2015. However, the model failed to reproduce these parameters for the year 2016. The results indicate the potential role of correcting the total seasonal pollen emission in improving the model's performance, especially for specific years in terms of pollen productivity. The application of chemical transport models such as WRF-Chem for pollen modelling provides a great opportunity for simultaneous simulations of chemical air pollution and allergic pollen with one goal, which is a step forward for studying and understanding the co-exposure of these particles in the air.- Published
- 2021
- Full Text
- View/download PDF
18. Prevalence of QTc Prolongation in Patients with Parkinson's Disease. Assessment of the Effects of Drugs, Clinical Risk Factors and Used Correction Formula.
- Author
-
Malkiewicz JJ, Malkiewicz M, and Siuda J
- Abstract
Background: Parkinson's disease (PD) is a possible risk factor for corrected QT interval (QTc) prolongation. PD patients frequently take QTc-prolonging drugs. The aim of the study was to assess the prevalence of QTc prolongation in PD and the influence of drugs and other potential risk factors on the QTc length in PD., Methods: 101 patients with PD and a good quality ECG were included in the study. The prolonged QTc was defined as ≥450 ms for men and ≥460 ms for women. Bazett's (QTcB) and Framingham (QTcF) formulas were utilized to calculate QTc. Data about sex, age, PD duration, disease's severity, comorbidities and QTc-prolonging drugs were collected. Multiple linear regressions with backward elimination were used to assess factors influencing the QTc., Results: A long QTc was presented in 13 patients (12.9%) for QTcB and 4 patients (4%) for QTcF. Longer QTc in PD patients was associated with older age, male sex and QTc-prolonging drugs regardless of the used formula. The QTcB was also significantly affected by the heart rate (HR)., Conclusion: QTc prolongation is common in PD. Age, drugs and male gender are potential risk factors for QTc prolongation in PD.
- Published
- 2021
- Full Text
- View/download PDF
19. High Ambrosia pollen concentrations in Poland respecting the long distance transport (LDT).
- Author
-
Stępalska D, Myszkowska D, Piotrowicz K, Kluska K, Chłopek K, Grewling Ł, Lafférsová J, Majkowska-Wojciechowska B, Malkiewicz M, Piotrowska-Weryszko K, Puc M, Rodinkova V, Rybníček O, Ščevková J, and Voloshchuk K
- Subjects
- Allergens, Czech Republic, Environmental Monitoring, Poland, Pollen immunology, Seasons, Slovakia, Ukraine, Ambrosia
- Abstract
High Ambrosia pollen concentrations in Poland rather rarely come from the local sources. The aim of this study was to define the temporal and spatial differences of the high Ambrosia pollen concentrations by creating models for the pollen transport from the distant sources. This study was thought to determine the direction of the air masses inflow into Poland, carrying Ambrosia pollen, from areas of the bordering countries with the pollen concentrations higher than iSTOTEN_n Poland. Pollen and meteorological datasets at 8 monitoring sites in Poland, and daily pollen concentrations at 11 sites in the Czech Republic, 5 sites in Slovakia and 3 sites in Ukraine were analysed recently. Days with concentrations ≥10 Pollen/m
3 and concurrent meteorological situations were analysed in great deal. The HYSPLIT model was applied to compute backward trajectories up to 4 days backward (96 h) and at three altitudes: 20, 500 and 1000 m above ground level (a.g.l.). High pollen concentrations occur most frequently when the air masses inflow into Poland from southerly (S, SE, SW, 44%) and easterly (E, 6%) directions and in no advection situations (25%). In years with the highest frequency of days over 10 Pollen/m3 , the prevailing directions of the pollen influx into Poland were from the South (2004-2006, 2008, 2011) but in one year (2014) from the East. Trajectories for the studied period show that air masses come most frequently from Slovakia and the Czech Republic. Sometimes, the Ambrosia pollen transport happens from Ukraine., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2020 Elsevier B.V. All rights reserved.)- Published
- 2020
- Full Text
- View/download PDF
20. Prevalence of allergic rhinitis and asthma in Poland in relation to pollen counts.
- Author
-
Lipiec A, Sybilski A, Rapiejko P, Furmañczyk K, Namysłowski A, Zieliñski W, Malkiewicz M, Biliñska D, Chłopek K, and Samoliñski B
- Abstract
Introduction: Despite the known role of pollen allergens in causing allergy symptoms in sensitized individuals, there are few publications investigating the relationship between pollen exposure in different regions and the prevalence of inhalant allergy., Aim: To assess the association between the prevalence of allergic rhinitis and asthma and the degree of exposure to pollen in various regions of Poland., Material and Methods: Completed questionnaires of 9,443 subjects living in four urban centres (Wroclaw, Katowice, Warsaw, Bialystok), collected within part of the ECAP project, were analyzed. Children aged 6-7 ( n = 2,278), adolescents aged 13-14 ( n = 2,418), and adults aged 20-44 ( n = 4,747) constituted 24.2%, 25.6% and 50.3% of the respondents, respectively. The clinical part (including skin prick tests, an assay of Timothy grass-specific IgE), was attended by 24% of the respondents. Data from 6-year pollen monitoring served to characterize birch and grass pollen seasons., Results: We found insignificant negative associations between the duration of birch pollen season and the prevalence of declared allergic rhinitis and asthma during the season across all age groups. There were insignificant inverse associations between the number of days with above-threshold and high grass pollen concentrations, total grass pollen count and the prevalence of declared allergic rhinitis and asthma during the season across all age groups. Associations noted in the clinical part were also non-significant; however, these trends were not uniform across the age groups., Conclusions: Our findings do not confirm the hypothesis of a positive association between pollen exposure and the prevalence of allergic rhinitis and asthma., Competing Interests: The authors declare no conflict of interest., (Copyright: © 2019 Termedia Sp. z o. o.)
- Published
- 2020
- Full Text
- View/download PDF
21. Co-occurrence of Artemisia and Ambrosia pollen seasons against the background of the synoptic situations in Poland.
- Author
-
Stępalska D, Myszkowska D, Katarzyna L, Katarzyna P, Katarzyna B, Kazimiera C, Łukasz G, Idalia K, Barbara MW, Małgorzata M, Małgorzata N, Krystyna PW, Małgorzata P, and Elżbieta WC
- Subjects
- Environmental Monitoring, Poland, Seasons, Air Pollutants analysis, Allergens analysis, Ambrosia, Artemisia, Pollen
- Abstract
The Asteraceae family is one of the largest families, comprising 67 genera and 264 species in Poland. However, only a few genera, including Artemisia and Ambrosia are potential allergenic sources. The aim of the study was to estimate how often and to what degree Artemisia and Ambrosia pollen seasons co-occur intensifying human health risk, and how synoptic situations influence frequency of days with high pollen concentrations of both taxa. Artemisia and Ambrosia pollen data were collected, using the volumetric method, at 8 sites in Poland. Daily concentrations of Artemisia pollen equal to 30 grains or more and Ambrosia pollen equal to 10 grains or more were accepted as high values. Concentrations of more than 10 pollen grains were defined as high in the case of Ambrosia because its allergenicity is considered higher. High concentrations were confronted with synoptic situations. Analysis was performed on the basis of two calendars on circulation types of atmosphere in Poland (Niedźwiedź, 2006, 2015). Co-occurrence of Artemisia and Ambrosia pollen seasons is being found most often, when Ambrosia pollen season starts in the first half of August. If it happens in the last 10 days of August high pollen concentrations of Artemisia and Ambrosia do not occur at the same days. At three sites (Sosnowiec, Rzeszów, Lublin) high Ambrosia pollen concentrations during the Artemisia pollen season appear more often than in other sites under question. The high Artemisia pollen concentrations occur, when continental or polar maritime old air masses inflow into Poland. The impact of air masses on high Ambrosia pollen concentrations depends on site localizations. It is likely, that in the south-eastern part of Poland high Ambrosia pollen concentrations result from the pollen transport from east-south-south-westerly directions and the local sources. Co-occurrence of both taxa pollen seasons depends on the air masses inflow and appears more often in a south-eastern part of Poland.
- Published
- 2017
- Full Text
- View/download PDF
22. Source regions of ragweed pollen arriving in south-western Poland and the influence of meteorological data on the HYSPLIT model results.
- Author
-
Bilińska D, Skjøth CA, Werner M, Kryza M, Malkiewicz M, Krynicka J, and Drzeniecka-Osiadacz A
- Abstract
We have investigated the relationship between the inflow of air masses and the ragweed pollen concentration in SW Poland (Wrocław) for a 10-year period of 2005-2014. The HYSPLIT trajectory model was used to verify whether episodes of high concentrations can be related to regions outside of the main known ragweed centres in Europe, like Pannonian Plain, northern Italy and Ukraine. Furthermore, we used two different meteorological data sets (the global GDAS data set and from the WRF mesoscale model; the meteorological parameters were: U and V wind components, temperature and relative humidity) into HYSPLIT to evaluate the influence of meteorological input on calculated trajectories for high concentration ragweed episodes. The results show that the episodes of high pollen concentration (above 20 pm
-3 ) represent a great part of total recorded ragweed pollen in Wrocław, but occur rarely and not in all years. High pollen episodes are connected with air masses coming from south and south-west Europe, which confirms the existence of expected ragweed centres but showed that other centres near Wrocław are not present. The HYSPLIT simulations with two different meteorological inputs indicated that footprint studies on ragweed benefit from a higher resolution meteorological data sets.- Published
- 2017
- Full Text
- View/download PDF
23. The dynamics of the Corylus, Alnus, and Betula pollen seasons in the context of climate change (SW Poland).
- Author
-
Malkiewicz M, Drzeniecka-Osiadacz A, and Krynicka J
- Subjects
- Poland, Rhinitis, Allergic, Seasonal etiology, Seasons, Allergens analysis, Alnus physiology, Betula physiology, Climate Change, Corylus physiology, Pollen
- Abstract
The changes in the main features of early spring tree or shrub pollen seasons are important due to the significant impact on the occurrence of pollen-related allergy symptoms. This study shows the results of pollen monitoring for a period of eleven years (2003-2013) using a Burkard volumetric spore trap. The main characteristics of the hazel, alder, and birch pollination season were studied in Wrocław (SW Poland). The statistical analyses do not show a significant trend of annual total pollen count or shift in timing of the pollen season in the period of analysis. The research confirms a great impact (at the statistically significant level of 0.05) of the heat resources on pollination season (the value of the correlation coefficient ranges from -0.63 up to -0.87). Meteorological variables (e.g. sum of temperature for selected period) were compiled to 5-year running means to examine trends. Changes in the pollination period features due to climate change including both timing and intensity of pollen productivity, would have important consequences for allergy sufferers., (Copyright © 2016 Elsevier B.V. All rights reserved.)
- Published
- 2016
- Full Text
- View/download PDF
24. Types of Artemisia pollen season depending on the weather conditions in Wrocław (Poland), 2002-2011.
- Author
-
Malkiewicz M, Klaczak K, Drzeniecka-Osiadacz A, Krynicka J, and Migała K
- Abstract
The aim of the study was to characterise Artemisia pollen season types according to weather conditions in Wrocław (south-western Poland) in the years 2002-2011. Over the period analysed, the start date of the pollen season (determined by the 95 % method) ranged from 10 July 2002 to 28 July 2010. The start date of the pollen season can be determined by using Crop Heat Units (CHUs). During the period 2002-2011, the Artemisia pollen season started after the cumulative value of CHUs had reached 2,000-2,100 °C. The three distinguished types of Artemisia pollen season are best described by the frequency of weather types defined by the type of circulation, mean daily air temperature, and the occurrence of rain. The variation in these factors affected the dynamics of the pollen season. The noteworthy frequency of days with rain and high seasonal sum of precipitation totals as well as the dominance of cyclonic weather from the westerly direction had an impact on the extension of the pollen season. The meteorological factors that directly affect pollen release and transport primarily include air humidity, expressed as vapour pressure ( r > 0.3, p < 0.01), temperature( r from 0.2 to 0.4, p < 0.01). The relationships between averaged meteorological data and daily pollen concentration were stronger ( r > 0.5, p < 0.01). Based on the correlation analysis, the meteorological variables were selected and regression equations were established using stepwise backward regression analysis.
- Published
- 2014
- Full Text
- View/download PDF
25. Carbon and nitrogen isotope analyses coupled with palynological data of PM10 in Wrocław city (SW Poland)--assessment of anthropogenic impact.
- Author
-
Górka M, Zwolińska E, Malkiewicz M, Lewicka-Szczebak D, and Jędrysek MO
- Subjects
- Carbon Isotopes analysis, Cities, Coal, Nitrogen Isotopes analysis, Particle Size, Poland, Seasons, Air Pollutants analysis, Environmental Monitoring methods, Particulate Matter analysis, Urbanization
- Abstract
We have applied both palynological and carbon and nitrogen isotopic analyses of PM10 (particulate matter with a diameter of 10 μm or less) to trace its origin and to assess the anthropogenic impact for the area under study. The PM10 samples were collected in Wrocław (SW Poland) by the Regional Inspectorate for Environment Protection during the year 2007. The usefulness of the palynological observations in the case of PM10 is much lower than that for total suspended particles due to the resolution of absorbed particles, but is still helpful for distinguishing C(3)/C(4) plants that indicate long-distance transport of pollutants. The δ(13)C(PM10) values varied seasonally from-26.9 to-25.1‰. The δ(15)N(PM10) values showed chaotic fluctuations and varied from 5.0 to 13.7‰. Our results indicated that during the heating period, the PM10 particles in Wrocław are derived mainly from local home heaters, whereas in the growing period, PM10 particles are derived from local transport and are partially generated by the industrial application of coal combustion outside the city of Wrocław.
- Published
- 2012
- Full Text
- View/download PDF
26. Rabbit cortical bone tissue increases its elastic stiffness but becomes less viscoelastic with age.
- Author
-
Isaksson H, Malkiewicz M, Nowak R, Helminen HJ, and Jurvelin JS
- Subjects
- Animals, Biomechanical Phenomena physiology, Body Weight physiology, Elastic Modulus physiology, Female, Osteogenesis physiology, Rabbits, Spectroscopy, Fourier Transform Infrared, Viscosity, Aging physiology, Elasticity physiology, Humerus physiology
- Abstract
Bone is dynamic tissue undergoing changes in its composition, structure and functional properties during growth. It has been proposed that especially changes in the collagen phase of bone are responsible for making the bone more fragile, and potentially less viscoelastic with age. Hence, robust methods to measure viscoelasticitiy are needed. This study aimed to characterize the development of the elastic and viscoelastic mechanical properties of rabbit bone during maturation and growth, as assessed by nanoindentation. The humeri from female New Zealand white rabbits of varying age (newborn, 11 days, 4 weeks, 3 and 6 months old, n=8 per group) were investigated. Mid-diaphyseal cortical bone samples were cut, dehydrated, embedded and polished. Nanoindentation probing, semi-dynamic testing with a frequency of 20 Hz and creep with a dwell time of 60 s were performed under load control to quantify the elastic and the time-dependent viscoelastic mechanical properties of bone. The elastic moduli were evaluated with all three methods and the viscoelastic parameters were assessed using the phase-shift and the creep time constant. The elastic stiffness of bone increased significantly with each consecutive age group, from 11 days to 6 months of age, based on the reduced modulus from the indentation probing, the storage modulus from the semi-dynamic test, and the first elastic parameter from the creep test. These elastic parameters correlated significantly (R=0.88-0.94, p<0.01). The values of viscoelastic parameters, the phase-shift and time creep constant, decreased significantly with age. The viscous properties determined by the creep and the semi-dynamic testing correlated significantly (R=0.90, p<0.01), however, no correlation was found between the phase-shift and the creep time constant. Additionally, the present results showed specific associations with tissue composition, as measured with Fourier Transform Infrared spectroscopy of the same samples. In summary, the present results reveal significant changes in material properties of rabbit cortical bone with age. The elastic modulus of bone tissue increased by approximately 60%, whereas the viscoelastic parameters decreased by 10% to 25% during the first 6 months of the rabbit's life. Together, this indicates significant structural and functional maturation of the bone matrix during growth of the rabbit., (Copyright © 2010 Elsevier Inc. All rights reserved.)
- Published
- 2010
- Full Text
- View/download PDF
27. [The sweat test in pancreatic cystic fibrosis].
- Author
-
ARISZ L, MALKIEWICZ ML, REINKING JW, and de VRIES W
- Subjects
- Humans, Cystic Fibrosis diagnosis, Sweat
- Published
- 1960
28. [Difficulties in the epidemiologic analysis of a focus of salmonellosis in the Warsaw province].
- Author
-
Szelag J, Peska S, and Malkiewicz M
- Subjects
- Adolescent, Female, Humans, Male, Poland, Salmonella Food Poisoning epidemiology
- Published
- 1965
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.