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排序方式: 共有471条查询结果,搜索用时 740 毫秒
11.
Piotr Orzechowski MD Ryszard Piotrowicz MD PhD Wojciech Zaręba MD PhD Renata Główczyńska MD PhD Dominika Szalewska MD PhD Sławomir Pluta MD PhD Robert Irzmański MD PhD Zbigniew Kalarus MD PhD Maciej Banach MD PhD Grzegorz Opolski MD PhD Michael J. Pencina PhD Ilona Kowalik PhD Ewa Piotrowicz MD PhD FESC 《Annals of noninvasive electrocardiology》2021,26(6):e12887
12.
13.
Compounds with lower dynamic stiffness are a better solution from the tyre/road noise point of view. The article presents the constructed test stand for the evaluation of dynamic stiffness both in in situ and in laboratory conditions. As a result of the tests, it was found that poroelastic pavements have a much lower dynamic stiffness (from 138.3 to 143.0 dB re. 1 N/m) compared to the asphalt concrete pavement (150.3 dB re. 1 N/m). In the group of poroelastic pavements, lower dynamic stiffness is characteristic for pavements with a binder course of porous asphalt. The results of the research are a contribution to further work on the influence of the dynamic stiffness of the pavements on the tyre/road noise level. The conducted measurements and analysis of the results prove the usefulness of the proposed test stand for determining the dynamic stiffness of bituminous mixtures in laboratory and field conditions. This is confirmed by the coherence between the force and acceleration signals at the level of at least 0.96—which indicates a very good validation of the test results with a random error lower than ±5% with 90% confidence level. 相似文献
14.
Gilles Montalescot Stephen G. Ellis Mark A. de Belder Luc Janssens Olivier Katz Wladyslaw Pluta Patrick Ecollan Michal Tendera Ad J. van Boven Petr Widimsky Henning R. Andersen Amadeo Betriu Paul Armstrong Bruce R. Brodie Howard C. Herrmann Franz-Josef Neumann Mark B. Effron Jiandong Lu Elliot S. Barnathan Eric J. Topol 《JACC: Cardiovascular Interventions》2010,3(2):203-212
15.
Jeziorski A Piekarski J Nejc D Pluta P Sek P Bilski A Durczynski A Wronski K 《Annals of surgical oncology》2007,14(11):3111-3116
Background According to the concept of sentinel node (SN), the lymphatic pathway leading to SN should be regarded as the main and the
most important lymphatic route from primary tumor to regional lymph nodes. We performed ex vivo blue-dye SN mapping in postmastectomy
specimens to assess whether the main lymphatic tract leading to SN is completely removed during mastectomy. We assumed that
ex vivo identification of SN may be possible only if the entire lymphatic tract leading to sentinel node is removed from within
the postmastectomy specimen.
Methods Blue dye (1 mL) was injected intracutaenously, periareolary into each of 28 postmastectomy specimens. In 13 cases mastectomy
was performed with the use of transverse skin incision; in 15 cases oblique incision was used.
Results The use of transverse skin incision during modified radical mastectomy allowed identification of the sentinel node and removal
of the entire lymphatic pathway leading to sentinel node only in 4 of 15 cases (31%). Conversely, the use of oblique skin
incision during modified radical mastectomy allowed identification of the sentinel node and removal of the entire lymphatic
pathway leading to sentinel node in 12 of 15 cases (80%).
Conclusions Our experiment revealed that the use of transverse skin incision during modified radical mastectomy may not be the best choice
for breast cancer patients. In our opinion, this observation may be especially important for patients not irradiated postoperatively. 相似文献
16.
Vitaliy Semenchenko Joanna Grabowska Michal Grabowski Viktor Rizevsky Michail Pluta 《Oceanological and hydrobiological studies.》2011,40(1):57-67
This is the first comprehensive review to examine the role of the central European invasion corridor on fish introductions into Belarusian and Polish inland waters (Dnieper-Bug-Vistula-Oder-Elbe-Spree-Havel). Historical and recent data were assessed, including the results of a 2003–2008 survey along the Belarusian and Polish sections of the corridor. Since the eighteenth century, at least six fish species of Ponto-Caspian origin have spread via the corridor and migrated westwards to the Baltic basin, with five species found in recent surveys, namely the monkey goby Neogobius fluviatilis, round goby N. melanostomus, racer goby N. gymnotrachelus, tubenose goby Proterorhinus marmoratus and the white eye-bream Abramis sapa. Four other non-native species were also found within the corridor — the Amur sleeper Perccottus glenii, gibel carp Carassius gibelio, brown bullhead Ameiurus nebulosus and the topmouth gudgeon Pseudorasbora parva. Their presence is related to numerous accidental introductions to many localities in Belarus and Poland, rather than from using the corridor as an invasion route. One species, the ninespine stickleback, Pungitius pungitius, has migrated from the Baltic basin to the Black Sea drainage systems. 相似文献
17.
Interactions between Tweens, surfactants used in eye drops and the remaining compounds of the preparations were investigated. The interactions were assessed by means of the surface tension measurement method. Obtained results demonstrate that the substances used in the facture of the preparation affect the critical micellar concentrations of Tweens. Only hydroxyethylcellulose was found to exert a stabilizing effect on the critical micellar concentration of these substances. The amount of used surfactant should be taken into consideration in the manufacture of eye preparations. 相似文献
18.
J Pluta 《Die Pharmazie》1988,43(5):348-351
Changes in concentration levels of halogen derivative pesticides (p,p'-DDT and its metabolites p,p'-DD and p,p'-DDE, as well as HCH, DMDT, aldrin, dieldrin) in vegetable blends and granulated products produced in Poland were studied in the period 1980-1984. By means of GLC and TLC methods it has been found, that as in the case of raw materials, contamination levels of these materials increased from 1980 up to the maximum values for vegetable blends in 1982 and in granulated products in 1983. Generally, concentration levels in vegetable blends and in raw material were similar over the same periods of time, whereas concentrations in granulated products were considerable lower. 相似文献
19.
Although proliferative arteriopathy has been postulated to play a role in the etiology of vasospasm after subarachnoid hemorrhage (SAH), histological and morphological studies examining cerebral vasospasm have produced conflicting results. To help settle this controversy, the authors used an in vivo label of cell division, bromodeoxycytidine, to assess cell proliferation in a primate model of SAH. Fifteen cynomolgus monkeys received a clot of either whole blood (11 animals) or red blood cells (four animals) placed around the right middle cerebral artery (MCA). On the day of surgery continuous intravenous infusion of bromodeoxycytidine was begun and continued until the animal was sacrificed immediately after arteriography on Day 7, 12, or 27 following surgery. Sections from the right and left MCA's were stained with a monoclonal antibody against bromodeoxcytidine, and labeled cells were counted. Arteriographic evidence of vasospasm occurred in nine monkeys on Day 7. On Day 12 and Day 27 no monkeys had persistent vasospasm. Placement of subarachnoid clot around the right MCA increased proliferative activity across all layers of the arterial wall. Most of the labeled cells were in the adventitia and the endothelium. Although there were more dividing cells in all layers of the right MCA than the left MCA (p < 0.01), the number of stained cells per section was limited (range 0.1 to 21.2, mean 8) and the occurrence of vasospasm was not associated with the number of dividing cells in the right MCA on Day 7, 12, 27, or for all days combined (p > 0.6). Cerebral vasospasm after SAH was not associated with the extent of proliferation of cells in the vessel wall, nor could the intensity of the limited proliferative changes have been responsible for narrowing of the vessel diameter. 相似文献
20.
T. Duprez Wladyslaw Lokietek Philippe Clapuyt Yvan DeMerlier Jacques Malghem Jean-François Gadisseux 《Pediatric radiology》1998,28(1):51-53
We describe a neurologically symptom-free adolescent with aggressive vertebral body haemangiomas at two sites.
Received: 1 August 1997 Accepted: 14 August 1997 相似文献