Publications by authors named "MIERZEJEWSKI J"

Thin layers of transition metal dichalcogenides have been intensively studied over the last few years due to their novel physical phenomena and potential applications. One of the biggest problems in laboratory handling and moving on to application-ready devices lies in the high sensitivity of their physicochemical properties to ambient conditions. We demonstrate that novel, in situ capping with an ultra-thin, aluminum film efficiently protects thin MoTe2 layers stabilizing their electronic transport properties after exposure to ambient conditions.

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Shape parameters of a weakly deformed ground-state band and highly deformed slightly triaxial sideband in ^{42}Ca were determined from E2 matrix elements measured in the first low-energy Coulomb excitation experiment performed with AGATA. The picture of two coexisting structures is well reproduced by new state-of-the-art large-scale shell model and beyond-mean-field calculations. Experimental evidence for superdeformation of the band built on 0_{2}^{+} has been obtained and the role of triaxiality in the A∼40 mass region is discussed.

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Ebola hemorrhagic fever is one of numerous viral hemorrhagic fevers. It is a severe, often fatal disease in humans and nonhuman primates (gorillas and chimpanzees). This article discusses the history of Ebola disease, already known routes of infection together with defining prevention methods and treatment trials.

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The upstate and Piedmont region of South Carolina is a rapidly urbanizing area as a result of a steadily growing population. This increase in population and development has the potential to negatively impact local aquatic systems like the Saluda River due to increased pollution from runoff, and effluents from industrial and wastewater treatment facilities. During the summer months of 2010, 159 fish from the Centrarchidae family (sunfish species (Lepomis) and largemouth bass - Micropterus salmoides) were collected from 13 sites along the Saluda River.

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The designed and constructed at the University of Lodz an electron spectrometer is devoted to "in-beam" measurements. The apparatus is characterized by high efficiency up to 9%, good energy resolution (FWHM = 5 keV at 482 keV) and, what is very important good suppression of delta electrons, positrons, and photons emitted by the targets. This achievement was obtained using a combination of magnetic field in two different layouts: perpendicular and parallel to the axis of the spectrometer being orthogonal to the beamline.

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Nuclear spectroscopy experiments were performed for 100g metallic uranium rod enriched to 93% (235)U, in order to establish and characterize the most prominent γ-rays in the natural decay series and photofission reaction. Single γ-ray spectra and γ-γ coincidences measurements were conducted before irradiation. The uranium sample was subsequently irradiated with 15 MeV bremsstrahlung photons.

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The reduced transition probabilities, B(E2; 0(gs)+ -->2(1)+), have been measured in the radioactive isotopes (108,106)Sn using subbarrier Coulomb excitation at the REX-ISOLDE facility at CERN. Deexcitation gamma rays were detected by the highly segmented MINIBALL Ge-detector array. The results, B(E2;0(gs)+ -->2(1)+)=0.

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The results of the Doppler-shift attenuation method lifetime measurements in partner bands of 128Cs and 132La are presented. Experimental reduced transition probabilities in 128Cs are compared with theoretical calculations done in the frame of the core-quasiparticle coupling model. The electromagnetic properties, energy and spin of levels belonging to the partner bands show that 128Cs is the best known example revealing the chiral symmetry breaking phenomenon.

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The aim of the presented study was determined the effectiveness of action the gamma radiation on water suspension B. anthracis spores. The irradiation was performed using a Cobalt 60 (Co 60) source, by using single and fractionary irradiation doses.

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In this study there was demonstrated the process of appearance and intensity of colonisation of the swine's skin samples by exposing them on agar plate cultures or immersed in liquid cultures of B. anthracis. The results of research were documented with photos of coloured histological preparations.

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The influence of skin tannery baths, according as wet-blue, wet-white and plant technology, on B. anthracis spores survival was investigated. As a result of this study there was explained that lime bath do not inactivated of all spores that are present in infected bath.

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In this study we have investigated the influence of sludge on the activity of bacteria strains: Acinetobacter baumannii, Aeromonas hydrophila and Pseudomonas cepacia. To our studies we have taken waste materials used in the chromium compound leather tanning process as well as materials from leather fat and waste materials, in general. It was confirmed that 1:20 dilution of chromium tanning leather waste, retanage and leather fat allowed the survivability of bacteria in all three strains.

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The influence of tannery baths: liming, deliming, bating, pickling, tanning, retannage on the survival and on the germination dynamism of B. anthracis spores (Sterne strain) was investigated. The periods and the conditions of this influence were established according to technological process of cow hide tannage.

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Influence of tannery chemical compounds on the selected bacteria of the activated sludge was investigated. The chromium compounds must be diluted to 1:15-1:20 to loss its activity on the bacteria. Other compounds like: natrium chloratum, natrium formate and greased oils have any influence on the growth of the selected bacteria.

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The treatment of breast cancer at an urban teaching hospital from 1990 to 1995 was analyzed according to age, stage, race, and funding status. Two hundred thirty-eight patients (mean age, 55 years) with newly diagnosed breast cancers were retrospectively identified and reviewed. A larger proportion of all funded patients (F; n = 131) presented with early-stage cancers (ductal carcinoma in situ, stage I) compared to nonfunded (NF, n = 107) (41 vs 25%; P = 0.

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Twenty eight Clostridium difficile strains were investigated. Eleven strains were toxin A and toxin B gene positive. Four strains were negative for both genes.

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A hypothesis that the common bacterial toxins are the possible cause of the Sudden Infant Death Syndrome (SIDS) was discussed. Recently, even botulinum toxin and Clostridium perfringens Type A enterotoxin are mentioned.

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This study was aimed at seeking strains of Clostridium difficile in feces and investigation of influence of antibiotics application on frequency of isolation and detection of toxing in vivo produced by this microorganism. Samples of feces were obtained from experimental dogs consisting of two groups. To groups I belonged 150 healthy dogs.

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Bombs containing B. anthracis spores were detonated on Gruinard island in 1942 and 1943 as a part of a British research programme set up in response to fears that the Germans were developing biological weapons. In 1986 island was decontaminated by spraying with 5% formaldehyde.

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Preparation of Clostridium difficile antibacterial and antitoxic sera is presented. Fifty one strains (72%) were typeable within Delmee scheme. Twenty strains (28%) belonged to new Polish serogroups designated 18, 27, 70, 71, 72, 88, 89 and NICH.

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