77 research outputs found

    Correct human cardiac nomenclature

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    Proper heart’s nomenclature is very important in daily clinical practice and research studies, andwhen it is consistent, it can facilitate better communication between different medical specialists. Thegeneral rule of the anatomy is to describe organs and their structures in attitudinally correct position.However, the use of the old-fashioned Valentine position (where the heart is described as if it werestanding on its apex) is still in use to describe important cardiac structures. Upon closer analysis, all main chambers of the heart and their associated subcomponents have mislabeled structures that should be renamed. In this article we aimed to emphasize the limitations of Valentinian nomenclature, presentproper anatomical names of the most important heart’s structures and advocate to change certain mis-labeled anatomical structures. Attitudinally correct designations presented in this study will benefit allmedical specialties, and they will reinforce the importance of consistent orientational naming. Correctnaming of heart’s structures will also help improve communication between different medical specialists

    The long-range transport of Pinaceae pollen : an example in Kraków (southern Poland)

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    High Pinaceae pollen concentrations in the air and on the surface of puddles before the main pollen season started were observed in Kraków (southern Poland) in May 2013. The paper presents the results of detailed studies of the composition and source of the “yellow rain” in 2013, and as a comparison, the Pinaceae pollen concentrations and samples collected from the ground surface in 2014 were considered. The air samples were collected using the volumetric method (Hirst-type device), while pollen grains sampled from the ground surface were processed using a modified Erdtman acetolysis method. Finally, all samples were studied using a light microscope. In 2013, the period of higher Abies, Picea and Pinus pollen concentrations was observed from the 5 to 12 of May, earlier than the main pollen season occurred. The presence of rainfall on the 12 and 13 of May 2013 caused the pollen deposition on the ground surface, where the prevalence of Pinaceae pollen was found. The synoptic situation and the analysis of the back-trajectories and air mass advection at the beginning of May 2013 indicated that Pinaceae pollen grains could have been transported from Ukraine, Romania, Hungary and Slovakia. In contrast, Pinaceae pollen grains deposited on the ground surface as a “yellow” film in May 2014, originated from local sources

    Between the Baltic and Danubian worlds : the genetic affinities of a middle neolithic population from Central Poland

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    For a long time, anthropological and genetic research on the Neolithic revolution in Europe was mainly concentrated on the mechanism of agricultural dispersal over different parts of the continent. Recently, attention has shifted towards population processes that occurred after the arrival of the first farmers, transforming the genetically very distinctive early Neolithic Linear Pottery Culture (LBK) and Mesolithic forager populations into present-day Central Europeans. The latest studies indicate that significant changes in this respect took place within the post-Linear Pottery cultures of the Early and Middle Neolithic which were a bridge between the allochthonous LBK and the first indigenous Neolithic culture of north-central Europe-the Funnel Beaker culture (TRB). The paper presents data on mtDNA haplotypes of a Middle Neolithic population dated to 4700/4600-4100/4000 BC belonging to the Brześć Kujawski Group of the Lengyel culture (BKG) from the Kuyavia region in north-central Poland. BKG communities constituted the border of the “Danubian World” in this part of Europe for approx. seven centuries, neighboring foragers of the North European Plain and the southern Baltic basin. MtDNA haplogroups were determined in 11 individuals, and four mtDNA macrohaplogroups were found (H, U5, T, and HV0). The overall haplogroup pattern did not deviate from other post-Linear Pottery populations from central Europe, although a complete lack of N1a and the presence of U5a are noteworthy. Of greatest importance is the observed link between the BKG and the TRB horizon, confirmed by an independent analysis of the craniometric variation of Mesolithic and Neolithic populations inhabiting central Europe. Estimated phylogenetic pattern suggests significant contribution of the post-Linear BKG communities to the origin of the subsequent Middle Neolithic cultures, such as the TRB

    Influence of mechanical damage and storage on various quality aspects of potatoes

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    The aim of this study was to determine the effects of mechanical damage on both the contents of dry matter and chlorogenic acid and the degree of blackspot for five cultivars of potatoes of various earliness groups. The study was conducted immediately after the harvest as well as after two, four and six months of storage under constant conditions (air temperature +4 °C and RH 95%). Mechanical damage leads to a greater accumulation of chlorogenic acid and increases the tubers’ susceptibility to blackening, irrespective of the earliness group. The duration of storage significantly determines the dry matter content of chlorogenic acid and the susceptibility to blackening of raw tuber flesh to the greatest extent for cultivars of the medium-early group. A significant (P < 0.01) correlation was demonstrated between the dry matter and chlorogenic acid contents and the degree of blackspot, which was higher on damaged tubers

    A Case of Extensive Infl ammatory Changes (Osteomyelitis) in an Infant’s Skeleton from the Medieval Burial Ground (11th–12th c) in Wawrzeńczyce (Near Krakow)

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    The aim of this study was to diagnose and describe extensive infl ammatory changes in a child’s skeleton from Wawrzeńczyce, (the medieval period). The aim of the analysis was to determine the nature of the infl ammatory changes and their etiology by means of macroscopic techniques as well as X-ray analysis. The tests revealed that the individual suffered from a hematogenous multifocal osteitis. This condition might have been a result of an acute or sub-acute osteitis, and the untreated form of osteomyelitis might have contributed to the infection of the entire developing organism, leading to death
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