Wyniki wyszukiwania - Biblioteka Nauki

1

Parnopes grandior (Pallas, 1771) (Hymenoptera: Chrysididae) in Poland and its status in adjacent countries

100%

Jaroszewicz B.

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2007

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tom 50

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nr 1

2

Roznorodnosc biologiczna lasow Polski

100%

Jaroszewicz B.

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tom 108

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nr 07-09

216-221

3

Grzyby [Mycota] Puszczy Bialowieskiej - gatunki zgromadzone na II Wystawie Grzybow Puszczy Bialowieskiej

100%

Jaroszewicz B.

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nr 4

47-53

4

Puszcza Bialowieska jako ostoja europejskiej fauny owadow

63%

Gutowski J. M. , Jaroszewicz B.

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tom 23

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nr 2

67-87

5

Silicon microstrip detectors of ionizing radiation

51%

Marczewski J. , Jaroszewicz B. , Kucewicz W. , Grabski P.

Electron Technology

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1999

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tom Vol. 32, No. 1/2

191-192

EN

An idea of microstrip detectors of ionizing radiaton is presented. As an example a detecor manufactured in the IET is shown. Future trend in the device design development in the IET is briefly signaled.

6

Zamieranie jesionu wyniosłego (Fraxinus excelsior L.) w obszarze ochrony ścisłej Białowieskiego Parku Narodowego

51%

Cholewinska O. , Keczynski A. , Smerczynski I. , Jaroszewicz B.

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2018

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tom 37

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nr 2

7

Post-fire changes of soil seed banks in the early successional stage of pine forest

51%

Kwiatkowska-Falinska A. , Jankowska-Blaszczuk M. , Jaroszewicz B.

Polish Journal of Ecology

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2014

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tom 62

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nr 3

EN

Our research was conducted on abandoned fields which had been undergoing spontaneous succession for 40–50 years and then were partly burnt. The main objective of the study was to examine if spontaneous fire in the early successional stage of pine forest causes a decrease in the number of species, diversity and density of seed banks, and an increase in the share of species forming long term persistent seed banks. Standing vegetation and soil seed banks were studied on 20 permanent plots on adjacent burnt and unburnt sites one and twelve years after spontaneous fire. One year after the fire the number of species in the seed banks of both areas was similar (11 and 12 species). In the burnt area the Shannon index and the floristical similarity between the seed bank and standing vegetation were lower, and seed density five times higher than in the unburnt area (15 691.5 m–2 vs.3426.5 m–2). This was mainly the effect of the high number of seedlings of Calluna vulgaris (L.) Hull and Spergula morisonii Boreau germinating from the burnt plots. Twelve years after the fire the number of species in both seed banks had increased little, but seed density in the burnt area (1742.5 m–2) had decreased 16 times, while that of the unburnt area had changed only slightly (2875.5 m–2). At the same time the Shannon index for the burnt area increased considerably, whereas for the unburnt one it did not change. Our study shows that the long-term persistent soil seed bank plays a fundamental role at the beginning of the post-fire regeneration of temperate coniferous forest vegetation. Germination of Calluna seedlings from the burnt soil seed banks in several times higher numbers than from unburnt soil seed banks may suggest that heat from the fire promotes a loss of dormancy in the heather seeds.

8

The effects of different types of woodstand disturbance on the persistence of soil seed banks

45%

Kwiatkowska-Falinska A. , Panufnik-Medrzycka D. , Wodkiewicz M. , Sondej I. , Jaroszewicz B.

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nr 2

EN

The research was conducted on four patches of thermophilous oak wood in Białowieża Primeval Forest: A – with a woodstand: oak + approx. 30-year-old hornbeam + hornbeam brushwood; B – with a hornbeam stand formed by natural seed fall after logging (ca. 1920) oaks; C – after logging oaks and replanted (ca. 1965) with pine and oak; D – with a natural low-density oak stand. Species composition and seed bank density were estimated using the seedling emergence method. Seedling emergence was observed over two vegetation seasons. Research demonstrated that: 1) the species abundance of the seed banks depends on canopy cover (A, B approx. 50 species; C, D approx. 70 species); 2) the floristical similarity (Sørensen’s index) of the seed bank and ground vegetation is higher in the undisturbed patch D (0.50) than in disturbed patches (0.30-0.35); 3) species diversity in plots A, B, C, D (H’=12.5; 13.4; 15.5; 16.9) and seed bank density per m2 (432.5; 958.0; 1486.5; 2268.0) are negatively correlated with the degree of patch shading; 4) the average weight of diaspores in the seed banks of shady plots is lower (A, B approx. 0.003 g) than that of sunny plots (C, D approx. 0.08 g); 5) the share of long-lived diaspores increases in patches after logging.

9

Ancient forest species and the diversity of vegetation and seed bank indicate the aptitude of transformed thermophilous oak wood patches for restoration

45%

Kwiatkowska-Falinska A. J. , Panufnik-Medrzycka D. , Wodkiewicz M. , Sondej I. , Jaroszewicz B.

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nr 1

EN

Thermophilous oak wood is the most species-rich forest habitat in the zone of mixed deciduous forests. A very limited amount of it has been saved in good condition. We investigated the principal hypothesis that the vegetation and seed banks, especially of the ancient forest species, are good indicators of habitat naturalness and its aptitude for restoration. Vegetation and seed bank sampling were carried out in fragments of forest with a known management and disturbance history over the past 80 years. We predicted that natural and anthropogenic transformations of tree stands would be significant factors shaping species composition and similarity of vegetation and seed banks. The closest similarity was observed between the seed banks of plots which were never logged. The least related to others was the seed bank of the logged site, whose soil was ploughed prior to tree replantation. The highest number of ancient forest species was recorded in the vegetation (33 species) and in the soil seed bank (21 species) of the least transformed patch of thermophilous oak forest. It was decreasing gradually with increase of the tree canopy cover on the research plots. Our results indicate also that the higher the coefficient of similarity between seed bank and vegetation, especially of the ancient forest species, the higher the forest’s naturalness. We conclude that restoration of thermophilous oak wood has the highest chances for success in patches with well preserved seed banks and vegetation.

10

Electrical characterization of ISFETs

38%

Tomaszewski D. , Yang C. M. , Jaroszewicz B. , Zaborowski M. , Grabiec P. , Pijanowska D.

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tom nr 3

55-60

EN

Methodology of electrical characterization of ISFETs has been described. It is based on a three-stage approach. First, electrical measurements of ISFET-like MOSFETs and extraction of basic parameters of the MOSFET compact model are performed. Next, mapping of the ISFET channel conductances and a number of other characteristic parameters is carried out using a semi-automatic testing setup. Finally, ISFET sensitivity to solution pH is evaluated. The methodology is applied to characterize ISFETs fabricated in the Institute of Electron Technology (IET).

11

Rozwój konstrukcji i technologii jonoczułych tranzystorów polowych

32%

Jaroszewicz B. , Tomaszewski D. , Kociubiński A. , Nikodem M. , Grabiec P. , Pijanowska D. , Torbicz W. , Chudy M.

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tom Vol. 45, nr 10

27-28

PL

W pracy przedstawiono opracowania dwóch konstrukcji czujników typu jonoczuły tranzystor polowy, ISFET. W pierwszej konstrukcji, zwanej Front Side Contact ISFET (FSC ISFET), elektrody źródła (S) i drenu (D) oraz bramkę tranzystora umieszczono na przedniej stronie struktury. W drugiej konstrukcji - Back Side Contact ISFET (BSC ISFET), elektrody S i D zostały umieszczone na tylnej stronie struktury, tj. po stronie przeciwnej od jej strony czołowej zawierającej chemicznie czuły obszar bramki. Przyrządy zostały scharakteryzowane pod kątem oceny parametrów elektrycznych tranzystora polowego, jak również parametrów chemicznych.

EN

Two ISFETs designs have been presented in this paper. In the first design called Front Side Contact ISFET, the transistor source (S), drain (D) electrodes and the gate have been placed on the front side of the structure. In the second one called Back Side Contact ISFET, the electrodes S and D have been placed on the opposite side to the front surface with the gate functioning as a chemically sensitive area. The assembled devices have been characterised electrically and tested in the solutions of different pH.

12

Mozaikowy detektor monolityczny z aktywnymi komórkami w technologii SOI

26%

Domański K. , Grabiec P. , Grodner M. , Jaroszewicz B. , Jasielski J. , Jastrząb M. , Klatka T. , Kozieł M. , Kucewicz W. , Kucharski K. , Kuta S. , Marczewski J. , Niemiec H. , Sapor M. , Tomaszewski D.

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tom Vol. 45, nr 10

39-41

PL

Praca przedstawia nowe rozwiązanie mozaikowego detektora krzemowego z aktywnymi komórkami, wykonanego na płytkach podłożowych SOI (Silicon On Insulator) [1], wytworzonych metodą wafer-bonding. Prezentowana praca jest częścią projektu SUCIMA (Silicon Ultra Fast Camera for Gamma and Beta Sources in Medical Applications), realizawanego w ramach 5. Programu Ramowego Komisji Europejskiej.

EN

A novel solution of an active pixel detector, which exploits wafer-bonded Silicon On Insulator (SOI) substrates for integration of the readout electronics with the pixel detector is presented in this paper. The main concepts of the proposed monolithic sensor and the preliminary tests results with ionising radiation sources are addresses. Presented work is a part of the project, called SUCIMA (Silicon Ultra Fast Camera for Gamma and Beta Sources in Medical Applications), founded by European Commission within 5-th Framework Program.