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Search: authors:"Janusz Dąbrowski"

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Heavy Metals Bioaccumulation in Tissues of Spiny-Cheek Crayfish (Orconectes limosus) from Lake Gopło: Effect of Age and Sex

The aim of the present work was to assess the concentrations of metals in the abdominal muscle and exoskeleton of 3-year-old males and 4-year-old females and males of spiny-cheek crayfish (Orconectes limosus) collected from Lake Gopło. A total of 93 males and 35 females were collected in autumn (October 2014). The analyzes of heavy metals were conducted by means of atomic...

Is nigrostriatal dopaminergic deficit necessary for Holmes tremor to develop? The DaTSCAN and IBZM SPECT study

Holmes’s tremor (HT) is assumed to be the result of coexistence of nigrostriatal dopaminergic system impairment and the lesion of cerebello-thalamic pathways. It was suggested that dopaminergic deficiency is responsible for rest tremor, and lack of compensatory cerebellar function leads to spill of tremor into voluntary movements. Cases of HT with and without abnormalities of the...

On the Λ Binding Energy in Nuclear Matter

The widely used low-order Brueckner (LOB) scheme for calculating the binding energy of the Λ hyperon in nuclear matter, BΛ, is discussed. Two corrections to BΛ are considered: the rearrangement energy and the effect of replacing the LOB spectrum of the single particle Λ energies in the intermediate states of the reaction matrix equation by a continuous spectrum. It is shown that...