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| 1 | Fetal and postnatal exposure to tobacco smoke and respiratory health in children 显示文摘 | Zlotkowska R Zejda JE | 2005 | Eur J Epidemiol2005，20，8： | 1 |
| 2 | Serological prevalence of hepatitis B virus and hepatitis C virus infection in the elderly population: Polish nationwide survey – PolSenior显示文摘 | Marek Hartleb Krzysztof Gutkowski Jan E. Zejda Jerzy Chudek Andrzej Wi?cek | 2012 | European Journal of Gastroenterology & Hepatology2012，，11： | 1 |
| 3 | Wheat or barley?显示文摘 | Marta Heroldová Emil Tkadlec Josef Bryja Jan Zejda | 2007 | Applied Animal Behaviour Science2007，，3： | 1 |
| 4 | Cervical spine degenerative changes(narrowed intervertebral disc spaces and osteophytes)in coal miners显示文摘 | Zejda JE Stasw B | 2003 | Int J Occup Med Environ Health2003，16，1： | 1 |
| 5 | Exposure to lead and other metals in children from Katowice district, Poland 显示文摘 | Osman K Zejda JE Schutz A | 1998 | Int Arch Occup Environ Health1998，71，3： | 1 |
| 6 | Cervical spine degenerative changes(narrowed in-tervertebral disc spaces and osteophytes)in coal miners显示文摘 | Zejda JE Stasiow B | 2003 | Int J OccupMed Environ Health2003，16，1： | 1 |
| 7 | New CCD photometric investigation of the early-type overcontact binary BH Cen in the young star-forming Galactic cluster IC 2944显示文摘BH Cen is a short-period early-type binary with a period of 0.792 din the extremely young star-forming cluster IC 2944. New multi-color CCD photometric light curves in U, B, V, R and I bands are presented and are analyzed by using the Wilson-Devinney code. It is detected that BH Cen is a high-mass-ratio overcontact binary with a fill-out factor of 46.4% and a mass ratio of 0.89. The derived orbital inclination i is 88.9 degrees, indicating that it is a totally eclipsing binary and the photometric parameters can be determined reliably. By adding new eclipse times, the orbital period changes in the binary are analyzed. It is confirmed that the period of BH Cen shows a long-term increase while it undergoes a cyclic oscillation with an amplitude of A_3 = 0.024 d and a period of P_3 = 50.3 yr. The high mass ratio, overcontact configuration and long-term continuous increase in the orbital period all suggest that BH Cen is in the evolutionary state after the shortest-period stage of Case A mass transfer.The continuous increase in period can be explained by mass transfer from the secondary component to the primary one at a rate of˙M_2 = 2.8×10^(-6) M_⊙per year. The cyclic change can be plausibly explained by the presence of a third body because both components in the BH Cen system are early-type stars. Its mass is determined to be no less than 2.2 M_⊙at an orbital separation of about 32.5 AU. Since no third light was found during the photometric solution, it is possible that the third body may be a candidate for a compact object. | Er-Gang Zhao Sheng-Bang Qian Miloslav Zejda Bin Zhang Jia Zhang | 2018 | Research in Astronomy and Astrophysics2018，18，5： | 1 |
| 8 | Lung function impairmenl as a guide to exercise limilation in work-related lung disorders显示文摘 | Cotes JE Zejda J King B | 1988 | Am Rev Respir Dis1988，137，： | 1 |
| 9 | Cervical spine degenerative changes(narrowed intervertebral disc spaces and osteophytes)in coal miners显示文摘 | Zejda JE Stasiow B | 2003 | Int J Occup Med Environ Health2003，16，： | 1 |
| 10 | Fetal and posmatal exposure to tobacco smoke and respiratory health in children显示文摘 | ZLOTKOWSKA R ZEJDA J E | 2005 | Eur J Epidemiol2005，20，8： | 1 |
| 11 | Back pain in coal miners of anthracite coal-pilot study results 显示文摘 | Limburska I Gazdzik TS Zejda JE | 1996 | Med Pr1996，47，4： | 1 |
| 12 | Exposure to lead and other metals in children from Katowice district, Poland显示文摘 | OSMAN K ZEJDA JE SCHUTZ A | 1998 | Int Arch Occup Environ Health1998，71，3： | 1 |
| 13 | Lumbar degenerative changes ( narrowed inter- vertebral disc spaces and osteophytes in coal miners 显示文摘 | Zejda J E Stasiow B | 2003 | Int J Occup Med Environ Health2003，16，： | 1 |
| 14 | Small rodent fluctuations: the effects of age structure and seasonality 显示文摘 | Tkadle E Zejda J | 1998 | Evolutionary Ecology1998，12，： | 1 |
| 15 | Fetal and postnatal exposure to tobacco smoke and respiratory health in children显示文摘 | Zlotkowska R Zejda JE | 2005 | Eur J Epidemiol2005，20，8： | 1 |
| 16 | Respiratory symptoms, bronchitis and asthma in children of Central and Eastern Europe显示文摘 | Leonardi GS Houthuijs D Nikiforov B Volf J Rudnai P Zejda J | 2002 | Eur Respir J2002，20，4： | 1 |
| 17 | Cervical spine degenerative changes (nar- rowed intervertebral disc spaces and osteophytes) in coal miners 显示文摘 | Zejda JE Stasi6w B | 2003 | Int J Occup Med Environ Health2003，16，1： | 1 |
| 18 | Photometric analysis of the eclipsing polar MN Hya显示文摘As an eclipsing polar with a 3.39 h orbital period, MN Hya was going through a state change when we observed it during 2009–2016. Ten new mid-eclipse times, along with others obtained from literature, allow us to give a new ephemeris. The residuals of a linear fit show that period decreased during the phase of state change, which means angular momentum was lost during this phase. The associated X-ray observation indicates the mass accretion rate was about 3.6 × 10^(-9) M⊙yr^(-1). The period decrease indicates that at least 60% of mass being transferred from the secondary was lost,maybe in the form of spherically symmetric stellar wind. In the high state, the data show the intensity of flickering reduced when the system had a higher accretion rate, and that flickering sticks out with a primary timescale of about 2 min, which implies the position of the threading point was about 30 white dwarf radii above its surface. The trend of light curves for the system in its high state follows that of the low state for a large fraction of the phase interval from phase 0 to phase 0.4 since, starting at phase0.4, the cyclotron feature is visible, and the primary intensity hump of the light curves near phase 0.7 when the system is in the high state did not appear on the curve when it was in the low state. Those facts contradict predictions of the two-pole model. | Qi-Shan Wang Sheng-Bang Qian Zhong-Tao Han Miloslav Zejda Eduardo Fernandez-Lajus Li-Ying Zhu | 2018 | Research in Astronomy and Astrophysics2018，18，7： | 0 |
| 19 | Revision of the photometric parameters of BS Cassiopeiae显示文摘Seven charge-coupled device(CCD) photometric times of light minimum of the overcontact binary BS Cas which were obtained from 2007 August to November and one CCD light curve in the R band which was observed on 2007 September 24 and October 15,are presented.It is found that the light curve of BS Cas has characteristics like a typical EW-type light variation.The light curve obtained by us is symmetric and shows total eclipses,which is very useful for determining photometric parameters with high precision.Photometric solutions were derived by using the 2003 version of the Wilson-Devinney code.It shows that BS Cas is a W-subtype overcontact binary(f = 27.5% ± 0.4%) with a mass ratio of q = 2.7188 ± 0.0040.The temperature difference between the two components is 190 K.Analysis of the O-C curve suggests that the period of AE Phe shows a long-term continuous decrease at a rate of dP/dt = -2.45×10-7 dyr-1.Thelong-timeperioddecreasecanbeexplainedbymasstransfer from the primary to the secondary. | Jia-Jia He Sheng-Bang Qian Miloslav Zejda Zdenek Mikulasek | 2010 | Research in Astronomy and Astrophysics2010，10，6： | 0 |
| 20 | The search for roAp stars: null results and new candidates from Strmgren-Crawford photometry显示文摘The rapidly oscillating Ap(roAp) stars exhibit pulsational photometric and/or radial velocity variations on time scales of several minutes, which are essential to test current pulsation models as well as our assumptions of atmospheric structure characteristics. In addition, their chemical peculiarity makes them very interesting for probing stellar formation and evolution in the presence of a global magnetic field. To date, a limited number of only 61 roAp stars is known to show photometric variability. On the other hand, a literature survey yields 619 unique stars that have unsuccessfully been searched for variability of this kind. Str o¨mgren-Crawford uvbyβ photometry of stars from both subgroups was used to investigate whether there is a selection bias for the investigated stars. We also present new photometric measurements(202 hours on 59 different nights) of 55 roAp candidates. We did not detect any new roAp star. Although our detection limits are comparable to other surveys, we also did not find pulsations in the known roAp star HD 12098, which may be a consequence of temporal amplitude changes. On the other hand, we do find some evidence for photometric variability of beta CrB at its spectroscopically derived pulsation period. From the uvbyβ photometry we conclude that the blue border of the roAp instability strip appears observationally well defined, whereas the red border is rather poorly known and studied.Within these boundaries, a total of 4646 candidates were identified which appear worth investigating for short-term pulsational variability. | Ernst Paunzen Gerald Handler Katerina Honkova Jakub Jurysek Martin Masek Marek Drozdz Jan Janik Waldemar Ogtoza Lars Hermansson Mats Johansson Martin Jelinek Marek Skarka Miloslav Zejda | 2018 | Research in Astronomy and Astrophysics2018，18，11： | 0 |
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