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The bentic diatoms of the Bandar Tawahi (Gulf of Aden, Republic of Yemen)

100%

Bafana C. A. , Witkowski A.

Oceanological Studies

1995

nr 69/10

77-96

Diatoma from the surface sediments of the coastal area of Bandar Tawahi, a small embayment of the Gulf of Aden (Khormaksar), were studied by means of light (LM) and electron microscopes (SEM and TEM).Species analysis revealed the presence of numerous taxa, some of which are rare and little known such as: Mastoneis biformis, Navicula giffeniana and N. platyventris.In the case of each species, the ecological requirements (salinity preferences, life form) and geographical distribution are given.

Lysozyme-like activity in eggs and in some tissues of land snails Helix aspersa maxima and Achatina achatina

100%

Fiolka M. J. , Witkowski A.

tom 52

nr 3-4

233-237

Antibacterial lysozyme-like activity against Micrococcus luteus in eggs and some tissues of snails Helix aspers maxima and Achatina achatina was detected in a turbidimetric standard assay. The bacteriolytic activity in Helix aspersa maxima was higher than in Achatina achatina. After the application of the bioautography technique, several lytic zones of Micrococcus luteus were observed in both studied species. Electrophoresis in denaturing conditions followed by immunodetection of lysozyme using EWL antibodies indicated the presence of several lysozyme forms in the tested snails.

Infrared Spectra of Retarded Molecular Oscillator

80%

Witkowski A. , Henri-Rousseau O. , Blaise P.

Acta Physica Polonica A

1997

tom 91

nr 3

495-504

Theoretical interpretation is proposed for the inhomogeneous broadening of the infrared line shapes of high harmonics of hydrogen containing modes observed by the optoacoustic and thermal lensing spectroscopy in the liquid phase of benzene and other organic transparent liquids. Attention is focused on the experimental fact that both line width and asymmetry factors of the harmonic series increase linearly with the harmonic number for which fact no satisfactory theoretical understanding was still available. This interpretation is based on recently proposed new approach to separation of electronic and nuclear movements accounting for the finite velocity of the π electronic cloud of vicinal molecules and its retardation in following the protonic motion. This retardation leads to the time dependence of molecular oscillator which may be viewed as anharmonic. The experimental results concerning the linear increase in the line width and the asymmetry factor with increasing order of the harmonic are well represented.

Sprawozdania z piśmiennictwa polskiego w dziedzinie nauk matematyczno-fizycznych za rok 1896

51%

Biernacki W. , Dickstein S. , Estreicher T. , Gosiewski W. , Kępiński S. , Klecki L. , Natanson W. , Rudzki M. P. , Witkowski A. , Żorawski K.

Prace Matematyczno-Fizyczne

1898

tom 9

nr 1

243-275

Sprawozdania z piśmiennictwa polskiego w dziedzinie nauk matematyczno-fizycznych za rok 1891

51%

Biernacki W. , Birkenmajer L. , Ciemniewski M. , Czajewicz A. , Dickstein S. , Dziwiński B. , Gosiewski W. , Natanson E. , Natanson W. , Witkowski A.

Prace Matematyczno-Fizyczne

1893

tom 4

nr 1

185-230

Sprawozdania z piśmiennictwa polskiego w dziedzinie nauk matematyczno-fizycznych za rok 1895

41%

Biernacki W. , Dickstein S. , Ernst M. , Estreicher T. , Gosiewski W. , Kępiński S. , Natanson E. , Natanson W. , Rudzki M. P. , Witkowski A. , Żorawski K.

nr 1

193-243

Sprawozdania z piśmiennictwa polskiego w dziedzinie nauk matematyczno-fizycznych za rok 1892

41%

Biernacki W. , Birkenmajer L. , Czajewicz A. , Dickstein S. , Gosiewski W. , Hołowiński A. , Klecki L. , Kramsztyk S. , Natanson E. , Natanson W. , Słowikowski J. , Witkowski A. , Znatowicz B.

Prace Matematyczno-Fizyczne

1894

tom 5

nr 1

191-239