Publications by authors named "Renata Wlodarczyk"

The molten hydroxide electrolyte Direct Carbon Fuel Cell (MH-DCFC) is a promising type of DCFC due to its advantages, such as high ionic conductivity, higher electrochemical activity of carbon (higher anodic oxidation rate and lower overpotentials) and high efficiency of carbon oxidation due to lower operating temperature (the dominant product of carbon oxidation is CO vs. CO). Accordingly, the MH-DCFC can be operated at lower temperatures (roughly 673-873 K), and thus cheaper materials can be used to manufacture the cell.

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Introduction: The identification of unknown victims of high temperatures (fire, terrorist attack, and other disasters) is one of the most difficult tasks faced by forensic geneticists. The main aim of this study was to in­vestigate the availability of DNA isolated from various human tissue samples exposed to high temperatures of 100–1000°C for 5 and 10 minutes.

Material And Methods: Samples of varying thickness of thigh muscle, liver, heart, adipose tissue, bone, teeth, hair and nails of 52 fresh cadavers and 59 healthy teeth of 29 volunteers were used.

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This study was aimed at investigating zona pellucida glycoproteins (ZP) ZP2, ZP3 mRNA expression as well as ZP3, ZP4 (ZPB) protein distribution before and after in vitro maturation (IVM) in canine oocytes. The cumulus-oocyte complexes (COCs) were recovered from 27 anoestrous mongrel bitches and matured for 72 h in TCM199 medium. The canine COCs were analysed before and after IVM.

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This study discusses manufacturing of metallic biomaterials by means of powder metallurgy with consideration for their unquestionable advantages, i.e. opportunities of obtaining materials with controllable porosity.

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The influence of passage time of the transfer gun through the uterine cervix and body to the embryo insertion site on pregnancy rate was analysed in 248 recipient heifers (mean age: 15-17 months). Embryos (90 fresh and/or 88 and 70 frozen in glycerol and ethylene glycol, respectively, grades 4 and 5, stage 1 or 2) were transferred to the ipsilateral uterine horn on day 7. Two different transfer guns were used in this experiment: a sterilisable steel transfer instrument to be used without sheaths with a removable tip made of gold-plated stainless steel (Wörrlein Minitüb) or a transfer stylet with sheaths with a metal tip and a side opening (Cassou gun, IMV Technologies).

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The maturation and developmental competence of the oocyte is acquired during folliculogenesis. It is still unclear whether follicle size is associated with the levels of transcript and protein encoding molecules contributing to the fertilization ability of the porcine oocyte. Follicles were dissected from porcine ovaries after slaughter and classified as small (< 3 mm), medium (3-5 mm) or large (>5 mm), aspirated cumulus-oocyte complexes were cultured in standard porcine IVM culture medium (TCM 199) for 44 h.

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Introduction: In the introduction remarks will be provided on inspections of the sites of murder or of other offences, conducted with the participation of a forensic physician or other experts of forensic biology. The goal of this paper is to make interested parties aware of the possibility of numerous biological traces and micro-traces found on the scenes of diverse crimes, which many a time are omitted. The presence of those traces prompts one to strive for individualised identification of perpetrators of murder based upon the material they leave behind.

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