Autor: Fuchs, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Effects of herbicides, lucerne meal, and zinc on microbial activity and aggregate stability of soils
Autorzy:: Wilke, B.M.
Fuchs, M.
Powiązania:: https://bibliotekanauki.pl/articles/26129.pdf
Data publikacji:: 1996
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: silt luvisol soil
Gramoxone
lucerne meal
microbial activity
zinc
herbicide
loamy colluvial soil
soil aggregate
aggregate stability
Goltix WG
Źródło:: International Agrophysics; 1996, 10, 4
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: High-Field EPR Spectroscopy on Transfer Proteins in Biological Action
Autorzy:: Möbius, K.
Schnegg, A.
Plato, M.
Fuchs, M. R.
Savitsky, A.
Powiązania:: https://bibliotekanauki.pl/articles/2043547.pdf
Data publikacji:: 2005-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 76.30.Rn
Opis:: In the last decade joint efforts of biologists, chemists, and physicists were made to understand the dominant factors determining specificity and directionality of transmembrane transfer processes in proteins. Characteristic examples of such factors are time varying specific H-bonding patterns and/or polarity effects of the microenvironment. In this overview, a few large paradigm biosystems are surveyed which have been explored lately in our laboratory. Taking advantage of the improved spectral and temporal resolution of high-frequency/high-field EPR at 95 GHz/3.4 T and 360 GHz/12.9 T, as compared to conventional X-band EPR (9.5 GHz/0.34 T), three transfer proteins in action are characterized with respect to structure and dynamics: (1) light-induced electron-transfer intermediates in wild-type and mutant reaction-centre proteins from photosynthetic bacteria Rhodobacter sphaeroides, (2) light-driven proton-transfer intermediates of site-specifically nitroxide spin-labelled mutants of bacteriorhodopsin proteins from Halobacterium salinarium, (3) refolding intermediates of site-specifically nitroxide spin-labelled mutants of the channel-forming protein domain of Colicin A bacterial toxin produced in Escherichia coli. The information obtained is complementary to that of protein crystallography, solid-state NMR, infrared and optical spectroscopy techniques. A unique strength of high-field EPR is particularly noteworthy: it can provide detailed information on transient intermediates of proteins in biological action. They can be observed and characterized while staying in their working states on biologically relevant time scales.
Źródło:: Acta Physica Polonica A; 2005, 108, 2; 215-234
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The influence of window size of autocorrelation function on fetal heart rate variability measurement using the Doppler ultrasound signal
Autorzy:: Roj, D.
Fuchs, T.
Przybyła, T.
Jeżewski, M.
Matonia, A.
Gacek, A.
Powiązania:: https://bibliotekanauki.pl/articles/333477.pdf
Data publikacji:: 2008
Wydawca:: Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:: monitoring płodu
tętno płodu
USG Dopplera
funkcja autokorelacji
fetal monitoring
fetal heart rate
Doppler ultrasound
autocorrelation function
Opis:: Commonly used noninvasive fetal monitoring is based on fetal heart rate (FHR) variability analysis of the Doppler ultrasound signal coming from the mechanical activity of the fetal heart. Estimation of periodicity of acquired signals using the autocorrelation technique is very important. The determination of cardiac intervals using the Doppler signal is more difficult than in electrocardiography, where the R-waves are evident. We investigated the influence of the autocorrelation window size on the FHR variability analysis. The indices describing the FHR variability calculated for signals obtained using two different autocorrelation techniques with various window lengths were compared with the reference ones obtained from fetal electrocardiogram. The optimal window was a compromise between artifacts resistance and the averaging level of instantaneous variability.
Źródło:: Journal of Medical Informatics & Technologies; 2008, 12; 111-116
1642-6037
Pojawia się w:: Journal of Medical Informatics & Technologies
Dostawca treści:: Biblioteka Nauki

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