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Morphological characteristics and lithological conditions of the spring-heads in the Knyszyńska Primeval Forest
No full textThe aim of the study was to determine the morphological characteristics of selected spring-heads in the Knyszyńska Primeval Forest and to identify lithological conditions in areas where groundwater flows to the surface. During the study, detailed bed level measurements of the spring-head areas were conducted. Lidar laser data obtained from the Central Department of Geodetic and Cartographic Documentation in Warsaw were also used for the analysis of morphometry. Based on the data, the detailed contour maps were created in the Surfer 12 programme and the basic parameters of the morphometry of the studied springs were determined. To detect lithological conditions, granulometric analyses were conducted and the filtration coefficient of aquifers in the individual spring-heads was calculated using Hazen and USBSC empirical models. Due to the morphological situation, the examined objects were classified as sub-slope and riverbank spring-heads. In terms of shape, spring-head alcoves are classified as basin-shaped, bowl-shaped and spindle-shaped alcoves. Different morphological processes prevail in each of these types. Basin-shaped alcoves are formed mainly by lateral erosion, bowlshaped alcoves by seepage erosion, landsliding and accumulation in the bottom, spindle-shaped alcoves by seepage erosion, headward erosion, breaking and collapsing. In the investigated outflows of groundwater aquifers are sands and glacifluvial sands with gravel of varying grain size. The lithological variation of aquifers in the spring-heads, directly affects the rate of groundwater filtration in different parts of the alcoves, which in turn leads to different morphogenetic processes and results in changes in the morphology of the spring-head alcoves
Uwarunkowania lokalizacji stacji paliw na obszarach miejskich i wiejskich na przykładzie województwa podlaskiego
Get PDFThe aim of this work is to present the current spatial structure and recognize the conditions of location of filling stations in urban and rural areas in Podlaskie Voivodeship. The case study of this province proved that deployment of filling stations depends primarily on various demographic and geographical factors. These include: number of inhabitants in the given locality, type of locality (city or village), location relative to large cities, type of road (of the national, voivodeship, county or commune rank), location relative to the state border, presence of forested area and presence of protected area. There are 250 public filling stations located in Podlasie Voivodeship, with the majority of them in the central and western part of the province. Their number depends to a large extent on the number of inhabitants, especially in the case of cities.Celem pracy jest ukazanie aktualnej struktury przestrzennej oraz rozpoznanie uwarunkowań lokalizacji stacji paliw na obszarach miejskich i wiejskich województwa podlaskiego. Na przykładzie tego województwa stwierdzono, że rozmieszczenie stacji paliw zależy przede wszystkim od różnych czynników demograficzno-geograficznych. Wśród nich można wymienić: liczbę mieszkańców miejscowości, rodzaj miejscowości (miasto czy wieś), położenie względem dużych miast, rodzaj drogi (krajowa, wojewódzka, powiatowa czy gminna), położenie względem granicy państwa, obecność obszaru leśnego oraz obecność obszaru chronionego. W województwie podlaskim zlokalizowanych jest 250 stacji ogólnodostępnych paliw, przy czym większość z nich zlokalizowana jest w środkowej i zachodniej części województwa. Ich liczba w znacznym stopniu zależy od liczby mieszkańców, szczególnie w przypadku mias
Conditions behind location of filling stations in urban and rural areas based on the example of podlaskie voivodeship
No full textCelem pracy jest ukazanie aktualnej struktury przestrzennej oraz rozpoznanie uwarunkowań lokalizacji stacji paliw na obszarach miejskich i wiejskich województwa podlaskiego. Na przykładzie tego województwa stwierdzono, że rozmieszczenie stacji paliw zależy przede wszystkim od różnych czynników demograficzno-geograficznych. Wśród nich można wymienić: liczbę mieszkańców miejscowości, rodzaj miejscowości (miasto czy wieś), położenie względem dużych miast, rodzaj drogi (krajowa, wojewódzka, powiatowa czy gminna), położenie względem granicy państwa, obecność obszaru leśnego oraz obecność obszaru chronionego. W województwie podlaskim zlokalizowanych jest 250 stacji ogólnodostępnych paliw, przy czym większość z nich zlokalizowana jest w środkowej i zachodniej części województwa. Ich liczba w znacznym stopniu zależy od liczby mieszkańców, szczególnie w przypadku miastThe aim of this work is to present the current spatial structure and recognize the conditions of location of filling stations in urban and rural areas in Podlaskie Voivodeship. The case study of this province proved that deployment of filling stations depends primarily on various demographic and geographical factors. These include: number of inhabitants in the given locality, type of locality (city or village), location relative to large cities, type of road (of the national, voivodeship, county or commune rank), location relative to the state border, presence of forested area and presence of protected area. There are 250 public filling stations located in Podlasie Voivodeship, with the majority of them in the central and western part of the province. Their number depends to a large extent on the number of inhabitants, especially in the case of cities
Variability of Soil Properties in Eroded Agricultural Landscape
No full textErosion strongly influences the soil properties and affects the intra-field variation of nutrients not only in steep young morainic landscapes but also on gentle slopes of old-glacial landscapes. The aim of the study was the evaluation of changes in the plant-available nutrient contents in the complex old-glacial eroded landscape of the Bielska Plain in the north-eastern part of Poland. The soil samples were collected from the soil profiles located along the transect beginning on the flat summit of the kame hummock extending through south-facing convex slope, the toeslope and footslope and further through the north-facing uniform slope. The content of plant-available forms of phosphorus (Pdl) and potassium (Kdl) and mineral forms of nitrogen (NH4-N and NO3-N) were determined in every soil profile. The soils located in various landscape positions were characterized with different fertility. In the soil located on the toeslope the content of NO3-N, Pdl and Kdl was high, while the soil located on the summit was rich in NH4-N and poor in the plant-available forms of K and P. The erosional distribution of plant-available N, P and K enhances the variation of nutrient content within one field and contributes to high variability of crops
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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