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Wyświetlanie 1-15 z 44
Tytuł:
Coincidence of three pathogens [Borrelia burgdorferi sensu lato, Anaplasma phagocytophilum and Babesia microti] in Ixodes ricinus ticks in the Lublin macroregion
Autorzy:
Wojcik-Fatla, A
Szymanska, J.
Wdowiak, L.
Buczek, A.
Dutkiewicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/51180.pdf
Data publikacji:
2009
Wydawca:
Instytut Medycyny Wsi
Tematy:
tick
Ixodes ricinus
coincidence
pathogen
Borrelia burgdorferi
Anaplasma phagocytophilum
Babesia microti
Lublin macroregion
Źródło:
Annals of Agricultural and Environmental Medicine; 2009, 16, 1; 151-158
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biomarkers in canine inflammatory bowel disease diagnostics
Autorzy:
Wdowiak, M.
Rychlik, A.
Kolodziejska-Sawerska, A.
Powiązania:
https://bibliotekanauki.pl/articles/31118.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
Canine inflammatory bowel disease (IBD) is a heterogeneous group of chronic gastrointestinal disorders. The etiology, similar to human IBD, remains unknown. Canine IBD is diagnosed by exclusion, which is a long, time and money-consuming process due to the need of elimination of other diseases presenting with similar symptoms. Therefore, a search for a specific and sensitive marker is needed to overcome these difficulties. The article is divided into 3 sections presenting up-to-date information about laboratory markers, immunohistochemical markers and changes in the neurochemical coding of the enteric nervous system, concentrating on their usefulness and future applications. Data concerning laboratory and immunohistochemical markers is based mainly on canine IBD, while the neuroimmunohistochemistry section presents knowledge from human IBD due to the lack of such studies in veterinary medicine.
Źródło:
Polish Journal of Veterinary Sciences; 2013, 16, 3
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Contrast-enhanced ultrasonography (CEUS) in canine liver examination
Autorzy:
Wdowiak, M.
Rychlik, A.
Nieradka, R.
Nowicki, M.
Powiązania:
https://bibliotekanauki.pl/articles/31671.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
contrast-enhanced ultrasonography
canine liver
examination
liver
dog
ultrasonography
cancer
diagnostics
imaging technique
Opis:
Ultrasonography is a noninvasive diagnostic tool used to image size, shape, parenchyma and vascularization of various body organs. Unfortunately, the ultrasonographic image is characterized by a low contrast due to similar acoustic properties of the soft tissue. The Doppler mode provides information about blood flow, but is incapable of imaging small vessels and capillaries because of their low blood flow velocity (1 mm/s). However, a possibility to increase the effectiveness of ultrasonographic diagnostics exists, thanks to intravenous ultrasound contrast agents (UCAs) consisted of gas microbubbles. The purpose of this review paper is to characterize specific imaging techniques necessary to conduct a contrast-enhanced liver examination and indications for CEUS as an alternative diagnostic method.
Źródło:
Polish Journal of Veterinary Sciences; 2010, 13, 4
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of electromagnetic waves on human reproduction
Autorzy:
Wdowiak, Artur
Mazurek, Paweł A.
Wdowiak, Anita
Bojar, Iwona
Powiązania:
https://bibliotekanauki.pl/articles/989982.pdf
Data publikacji:
2017
Wydawca:
Instytut Medycyny Wsi
Tematy:
human reproduction
electromagnetic waves
infertility
exposure to electromagnetic fields
Opis:
Electromagnetic radiation (EMR) emitting from the natural environment, as well as from the use of industrial and everyday appliances, constantly influence the human body. The effect of this type of energy on living tissues may exert various effects on their functioning, although the mechanisms conditioning this phenomenon have not been fully explained. It may be expected that the interactions between electromagnetic radiation and the living organism would depend on the amount and parameters of the transmitted energy and type of tissue exposed. Electromagnetic waves exert an influence on human reproduction by affecting the male and female reproductive systems, the developing embryo, and subsequently, the foetus. Knowledge concerning this problem is still being expanded; however, all the conditionings of human reproduction still remain unknown. The study presents the current state of knowledge concerning the problem, based on the latest scientific reports.
Źródło:
Annals of Agricultural and Environmental Medicine; 2017, 24, 1
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Low frequency electromagnetic waves increase human sperm motility – A pilot study revealing the potent effect of 43 kHz radiation
Autorzy:
Wdowiak, Artur
Mazurek, Paweł A.
Wdowiak, Anita
Bojar, Iwona
Powiązania:
https://bibliotekanauki.pl/articles/2162024.pdf
Data publikacji:
2018-12-20
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
electromagnetic radiation
semen motility
sperm hyperactivation
sperm kinetic variables
metal detecting
infertility
Opis:
Objectives Abnormalities in the timing and course of spermatozoa capacitation and hyperactivation underlie common pathologies related to male infertility. Recent data shows that low frequency electromagnetic waves may influence cell membrane potential and permeability. It is therefore possible that low frequency electromagnetic waves could affect the maturation and motility processes of spermatozoa. The 43-kHz wave generator was used for modeling the impact of environmental exposure to low frequency electromagnetic radiation on human sperm. Material and Methods Sperm samples were gathered from 103 fertile, healthy men aged 25–30 years old and performed computer-assisted sperm analysis. After initial examination, each participant’s semen sample was divided into 2 aliquots (control and experimental) and placed in separate automated incubators. The samples constituting the experimental group were placed into the exposure system that emitted 43-kHz electromagnetic waves. Sperm motility was assessed at 3 h, 12 h and 24 h. Results Exposure to a 43-kHz radio frequency increased the percentage of sperm in progressive motility by up to 5.8% and the velocity of said sperm by up to 2 μm/s. Moreover, the total number of hyperactivated spermatozoa was significantly increased in the semen exposed to the electromagnetic signal. Conclusions In vivo environmental exposure to 43-kHz waves may promote the development of infertility related to premature capacitation outside of the vaginal tract. Exposing semen to this particular frequency may also boost the capacitation and hyperactivation of spermatozoa in vitro, prior to conducting assisted reproductive therapies.Int J Occup Med Environ Health 2018;31(6):723–739
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2018, 31, 6; 723-739
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Alcohol consumption and quality of embryos obtained in programmes of in vitro fertilization
Autorzy:
Wdowiak, A.
Sulima, M.
Sadowska, M.
Bakalczuk, G.
Bojar, I.
Powiązania:
https://bibliotekanauki.pl/articles/50665.pdf
Data publikacji:
2014
Wydawca:
Instytut Medycyny Wsi
Źródło:
Annals of Agricultural and Environmental Medicine; 2014, 21, 2
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of bent timber beam reinforcement with the application of composite materials
Analiza wzmocnień zginanych belek drewnianych z zastosowaniem materiałów kompozytowych
Autorzy:
Wdowiak, A.
Powiązania:
https://bibliotekanauki.pl/articles/402195.pdf
Data publikacji:
2016
Wydawca:
Politechnika Świętokrzyska w Kielcach. Wydawnictwo PŚw
Tematy:
timber
composite materials
reinforcement analysis
drewno
kompozyty
analiza zbrojenia
Opis:
The paper discusses timber frame reinforcement with the application of fiber composites and analyzes the results of the conducted studies. The notion of composite materials and their impact on the frame’s load bearing capacity and rigidity have been defined. The following issues have been discussed: the techniques of reinforcing timber beams, measuring the size of deflection for different load levels, destructive load, timber and tape deformation.
Źródło:
Structure and Environment; 2016, 8, 1; 10-16
2081-1500
Pojawia się w:
Structure and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Background ionizing radiation and semen parameters of men with reproductive problems
Autorzy:
Wdowiak, A.
Stec, M.
Raczkiewicz, D.
Bień, A.
Iwanowicz-Palus, G.
Panasiuk, L.
Powiązania:
https://bibliotekanauki.pl/articles/2085376.pdf
Data publikacji:
2020
Wydawca:
Instytut Medycyny Wsi
Tematy:
ionizing radiation
men
semen analysis
sperm quality
reproduction
male infertility
Opis:
Introduction and objective. The male reproductive system constitutes a set of tissues which are particularly sensitive to external factors. The aim of the study was to analyze the relationship between background radioactivity and the quality of the semen of the men who have reported to the infertility treatment facility in 2000–2016 in the Lublin region of eastern Poland. Materials and method. The radioactivity of the ground-level air layer obtained from the Institute of Meteorology and Water Management in Włodawa in the Lublin region was analysed. 4,250 spermiograms of patients who reported to the treatment facility for the first time due to infertility were analysed and correlated to background radioactivity in the Lublin region in 2000–2016. Results. A long-term decrease in the percentage of morphologically normal spermatozoa of the patients was observed (r=-0.970; p<0.001 in 2000–2009 and r=-0.925; p=0.003 in 2010–2016). Men’s age correlated negatively with sperm motility (r=-0.164; p=0.009) and morphology (r=-0.186; p=0.009). The percentage of spermatozoa with normal morphology was lowered by beta-isotopes of artificial origin in the air in 2000–2009 (r=-0.655; p=0.040) and by the exposure to gamma radiation of the ground-level atmosphere in 2010–2016 (r=-0.676; p=0.048). The percentage of sperm vitality was lowered by gamma radiation in the atmosphere (r=-0.636; p=0.006), but improved by beta isotopes in precipitation (r=0.686; p=0.002) in the whole of the analyzed period. Conclusions. The percentage of morphologically normal spermatozoa in patients who reported to the infertility treatment depends not only on the age of patient, but also on beta-isotopes of artificial origin and gamma radiation in the atmosphere. Beta isotopes in precipitation affect the improvement of sperm vitality.
Źródło:
Annals of Agricultural and Environmental Medicine; 2020, 27, 1; 43-48
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badanie cech strukturalnych i geometrycznych podczas sortowania wytrzymałościowego tarcicy konstrukcyjnej metodą wizualną
Testing structural and geometric strengths while visual sorting of structural timber
Autorzy:
Wdowiak, A.
Powiązania:
https://bibliotekanauki.pl/articles/162619.pdf
Data publikacji:
2017
Wydawca:
Polski Związek Inżynierów i Techników Budownictwa
Tematy:
tarcica
sortowanie
klasyfikacja wytrzymałościowa
metoda wizualna
właściwości geometryczne
właściwości strukturalne
sawn timber
sorting
strength classification
visual method
geometrical characteristics
structural characteristics
Opis:
W artykule zaprezentowano analizę cech strukturalnych i geometrycznych podczas sortowania wytrzymałościowego tarcicy konstrukcyjnej metodą wizualną. Skoncentrowano się na zagadnieniach dotyczących zasad klasyfikacji tarcicy konstrukcyjnej iglastej. Ponadto omówiono wymagania wilgotnościowe, wymiarowe, jakościowe tarcicy i sposoby jej oznakowania. Znacząco przytoczono metody badania niektórych wad strukturalnych i wad obróbki drewna.
The article presents the analysis of structural and geometrical features while visual sorting of structural sawn timber. Significant emphasis was placed on classification rules for coniferous timber. In addition, moisture, dimension, quality and marking requirements were discussed. Defect testing methods were also thoroughly described in this article.
Źródło:
Przegląd Budowlany; 2017, 88, 12; 42-46
0033-2038
Pojawia się w:
Przegląd Budowlany
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Defects in structural timber
Wady drewna konstrukcyjnego
Autorzy:
Wdowiak, A.
Powiązania:
https://bibliotekanauki.pl/articles/402203.pdf
Data publikacji:
2017
Wydawca:
Politechnika Świętokrzyska w Kielcach. Wydawnictwo PŚw
Tematy:
timber
wood defects
knots
cracks
resin pockets
stains
rots
insect channels
wanes
twisted fibres
curves
sclerenchyma fibres
drewno
wady drewna
sęki
pęknięcia
pęcherze żywiczne
zabarwienia
zgnilizna
chodniki owadzie
obliny
skręt włókien
krzywizny
twardzica
Opis:
The paper presents the defects that are typically found in structural timber. The model of the so-called flawless timber has been made more precise. Additionally, the impact of defects on timber quality was characterised. Defect classification with respect to the time of formation, type and causes was presented. The following defects were discussed in a detailed manner: knots, twisted fibres, cracks, resin pockets, stains, rots, insect channels, wanes, shape defects and sclerenchyma fibres. The main objective of the paper is to show actual imperfections in the conifer wood revealed in the examined elements. The cross-sections of round timber and construction and structural sawn timber were analysed.
W artykule przedstawiono typowe wady drewna konstrukcyjnego. Przybliżone zostały wzorce tzw. drewna bezbłędnego. Scharakteryzowano również wpływ wad na jakość drewna oraz ich podział w odniesieniu do czasu powstania, rodzaju uszkodzeń i ich przyczyn. Szczegółowo zilustrowano sęki, skręt włókien, pęknięcia, pęcherze żywiczne, zabarwienia, zgnilizny, chodniki owadzie, obliny, wady kształtu oraz twardzicę. Głównym celem pracy jest ukazanie rzeczywistych niedoskonałości przebadanych elementów z drewna iglastego. Przeanalizowano przekroje drewna okrągłego oraz tarcicy budowlano-konstrukcyjnej.
Źródło:
Structure and Environment; 2017, 9, 2; 112-122
2081-1500
Pojawia się w:
Structure and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of ionizing radiation on the male reproductive system
Autorzy:
Wdowiak, A.
Skrzypek, M.
Stec, M.
Panasiuk, L.
Powiązania:
https://bibliotekanauki.pl/articles/2083104.pdf
Data publikacji:
2019
Wydawca:
Instytut Medycyny Wsi
Tematy:
radiation protection
ionizing radiation
male fertility
human reproductive function
medical exposure
natural exposure
Opis:
Introduction and objective. In the light of current data concerning the growing exposure to ionizing radiation (IR) originating from atrificial sources, especially from medical ones, and also related to occupational exposure, it is justifiable to systematize the state of knowledge concerning the effect of IR on the male reproductive system. Brief description of the state of knowledge. There is no basis for the application of the hypothesis of hormesis in the area of male reproductive health. Regarding the impact of IR on spermatogenesis, spermatogonia are less susceptible to the occurrence of DNA damage after exposition to IR, but are characterized by slower DNA repair compared to somatic cells. Damage to the genes after exposure to IR is possible at each stage of spermatogenesis; however, haploidal spermatids show the highest radiosensitivity in this respect. The genetic risk of the cells differentiating during spermatogenesis is limited to one cycle of spermatogenesis, whereas the genetic instability may persist for the whole period of life, and DNA damage induced by IR may be transmitted to future generations. The minimum dose causing detectable DNA damage was 30 Gy. While exceeding this dose, the number of single-strand DNA breaks increases. Among males exposed to IR, a decrease was observed in sperm motility and in the percentage of morphologically normal spermatozoa as well as in an intensification of vacuolization. The genetic material in the sperm of these males showed higher fragmentation and methylation of genomic DNA. Conclusion. In the context of the epidemiological situation concerning the prevalence of infertility, while assessing the health effects of exposure to IR from artificial, including medical sources, the reproductive risk should be considered.
Źródło:
Annals of Agricultural and Environmental Medicine; 2019, 26, 2; 210-216
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of effect of selected occupational factors on termination of pregnancy and state of the newborn
Autorzy:
Wdowiak, A.
Stec, M.
Iwanowicz-Palus, G.J.
Mroczkowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/3083.pdf
Data publikacji:
2012
Wydawca:
Instytut Medycyny Wsi
Źródło:
Journal of Pre-Clinical and Clinical Research; 2012, 06, 2
1898-2395
Pojawia się w:
Journal of Pre-Clinical and Clinical Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the effect of using mobile phones on male fertility
Autorzy:
Wdowiak, A
Wdowiak, L.
Wiktor, H.
Powiązania:
https://bibliotekanauki.pl/articles/52101.pdf
Data publikacji:
2007
Wydawca:
Instytut Medycyny Wsi
Tematy:
human health
sperm cell
structure
electromagnetic wave
male fertility
male
mobile telecommunication zob.mobile telephony system
mobile telephony system
living organism
mobile phone
motility
Opis:
The problem of the lack of offspring is a phenomenon concerning approximately 15% of married couples in Poland. Infertility is defi ned as inability to conceive after a year of sexual intercourses without the use of contraceptives. In half of the cases the causative factor is the male. Males are exposed to the effect of various environmental factors, which may decrease their reproductive capabilities. A decrease in male fertility is a phenomenon which occurs within years, which may suggest that one of the reasons for the decrease in semen parameters is the effect of the development of techniques in the surrounding environment. A hazardous effect on male fertility may be manifested by a decrease in the amount of sperm cells, disorders in their mobility, as well as structure. The causative agents may be chemical substances, ionizing radiation, stress, as well as electromagnetic waves. The objective of the study was the determination of the effect of the usage of cellular phones on the fertility of males subjected to marital infertility therapy. The following groups were selected from among 304 males covered by the study: Group A: 99 patients who did not use mobile phones, Group B: 157 males who have used GSM equipment sporadically for the period of 1-2 years, and Group C: 48 people who have been regularly using mobile phone for more than 2 years. In the analysis of the effect of GSM equipment on the semen it was noted that an increase in the percentage of sperm cells of abnormal morphology is associated with the duration of exposure to the waves emitted by the GSM phone. It was also confi rmed that a decrease in the percentage of sperm cells in vital progressing motility in the semen is correlated with the frequency of using mobile phones.
Źródło:
Annals of Agricultural and Environmental Medicine; 2007, 14, 1
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of trace metals in follicular fluid in ICSI-treated patients
Autorzy:
Wdowiak, A.
Wdowiak, E.
Bojar, I.
Powiązania:
https://bibliotekanauki.pl/articles/2081685.pdf
Data publikacji:
2018
Wydawca:
Instytut Medycyny Wsi
Tematy:
trace metals
intracytoplasmic sperm injection (ICSI)
embryo development dynamics
time-lapse monitoring
follicular fluid
Opis:
This study investigated the influence of cadmium (Cd), copper (Cu), iron (Fe), lead (Pb), selenium (Se), and zinc (Zn) in follicular fluid on the effectiveness of in vitro fertilization (IVF) treatment and the dynamics of embryo development. The study involved 221 women aged 25–35 years in whom intracytoplasmic sperm injection (ICSI) was performed. Analysis of the effects of the average concentrations of Se, Zn, and Cu on the developmental dynamics of embryos showed that higher concentrations of these metals were accompanied by shorter lead times for each of the various stages of development, while the reverse was true in the case of cadmium and lead. No relationship was observed between the mean concentrations of Fe and the dynamics of the human embryo. In order to discover whether the fact of becoming pregnant is affected by the investigated variables, a logistic regression model was applied. The dependent variable was the fact of achieving pregnancy, and the independent variable tested was the level of trace metals. Ultimately, only one variable remained statistically significant in the model: the level of Se.
Źródło:
Annals of Agricultural and Environmental Medicine; 2018, 25, 2; 213-218
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 44

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