In our previous studies, a decreased blood pressure was reported in children treated by anthracycline (AC). The aim of this study was to assess the long-term effects of AC anticancer therapy in 45 subjects aged 13-22 years by repeated 24-hour Holter monitoring of blood pressure. Sixty four aged-matched subjects served as controls. The differences between mean values of systolic (SBP) and diastolic blood pressure (DBP) in each hour of both groups were evaluated by Mann-Whitney test. Also the parameters of the least-squares fit of the sinusoidal curve in each subject were estimated (M - mesor, midline-estimating, a mean value of sinusoidal curve corresponds to 24-hours mean pressure; A - amplitude, double amplitude corresponds to nightday difference; Acr - acrophase is a time of maximal value of a sinusoidal curve). SBP and DBP was significantly lower only during night hours in anthracycline patients 19-22 years old. Also M was lower in this age subgroup of patients comparing to age matched controls (SBP: 112±6 mm Hg versus 117±7 mm Hg, p<0.05; DBP: 67±3 mm Hg versus 69±6 mm Hg, p<0.05), A was not different, Acr in patients was shifted one hour earlier (SBP: 2.4 p.m. versus 3.6 p.m., p<0.05; DBP: 2.1 p.m. versus 3.3 p.m., p<0.01). This corresponds to the shift of the morning blood-pressure increase seen on 24-hours blood pressure profiles. M correlated with age in controls (SBP: r=0.374, p<0.01; regression coefficient b=1.34 mm Hg/1 year; DBP: r=0.365, p<0.01; b=0.95 mm Hg/1 year), but not in patients (SBP: r=0.182, DBP: r=0.064). A and Acr were age-independent in all subjects. It is concluded that blood pressure in 19-22 years old AC patients is lower during night hours, the age-dependent increase of blood pressure seen in healthy controls between 13 and 22 years of age does not occur in patients. This finding is consistent with the long-lasting impairment of the sympathetic nervous system caused by anthracyclines., Z. Nováková ... [et al.]., and Obsahuje bibliografii a bibliografické odkazy
Data on nesting densities of Bembix rostrata, a digger wasp inhabiting dynamic coastal dunes, were used to document the detrimental effects of trampling by cattle and vacationers. Both types of disturbance resulted in similar sand displacement and prey availability. Nesting densities of Europe's largest digger wasp declined dramatically with increasing trampling, probably below the critical population size. Hence, additional human disturbance, although resulting in similar environmental conditions compared to natural disturbance, significantly affected local population sizes. As a result, anthropogenic has to be avoided disturbance in order to restore or conserve natural dynamics and efforts to restore natural dynamics in a more natural way should be promoted. Although this is here only documented for one, large specialised invertebrate, the application of traditional management techniques, such as grazing by large herbivores, within newly evolved landscapes may introduce new pressures that affect pre-adapted species to natural disturbances negatively within short time spans.
Příspěvek nabízí stručný přehled odlišných přístupů ke studiu člověka, jež může být pojímáno jako celostní bio-socio-kul- turní disciplina čerpající jak z přírodních / exaktních, tak humanitních věd, či jako dvě odlišné skupiny „vědeckých“ (čti: přírodovědných) a „nevědeckých“ (společenskovědních) výzkumů, jež se vzájemně metodologicky a terminologicky stále vzdalují, ale ze zvyku jsou stále označovány za antropologii, a to na pozadí nedávné kontroverze vyvolané rozhodnutím Americké antropologické asociace vymýtit pojem „věda“ z dlouhodobého programu organizace. Obsaženo je i krátké ohlédnutí za 1. ročníkem našeho časopisu jako otevřené publikační plat- formy integrálně chápané antropologie., The contribution presents a brief overview of different approaches to the study of Man, conceived as a holistic bio-socio-cultural scientific discipline drawing upon natural / exact sciences and humanities, or increasingly diverging “scientific” and “non-scientific” research- es, both from force of habit still termed anthropology, in the background of recent controversy sparkled by the decision of the American Anthropological Association to purge the term “science” from its long-term mission statement. Included is also a short retrospective glance at the first volume of our journal as an open publication platform of integrally conceived anthropology., Jan Filipský, and Literatura