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Morphodynamics of slumps on Wolin island cliffed coast
No full textWydział Nauk Geograficznych i Geologicznych: Instytut/Katedra Geoekologii i GeoinformacjiGłównym problemem pracy jest morfodynamika zerw na wybrzeżu klifowym wyspy Wolin ze szczególnym uwzględnieniem etapów ich rozwoju. Podstawowe cele badawcze dotyczyły określenia uwarunkowań wpływających na rozwój zerw, ustalenia wartości progowych czynników morfogenetycznych a także określenie wpływu procesów ponadprzeciętnych i ekstremalnych na powstawanie i rozwój zerw. Ważnym efektem realizowanego problemu badawczego było przedstawienie modelu rozwoju zerw. Szczegółowe badania geomorfologiczne, geotechniczne, geodezyjne i dendrogeomorfologiczne przeprowadzone zostały na czterech zerwach zlokalizowanych na odcinku wybrzeża klifowego położonego pomiędzy Grodnem a Białą Górą. Podstawą wydzielenia zerw było zróżnicowanie morfologiczne, morfometryczne, etap rozwoju i przejawy aktywności. Przeprowadzone badania pozwoliły stwierdzić, iż zerwy stanowią ważny element rzeźby wolińskich klifów. Badane formy cechują się małym zróżnicowaniem litologicznym, najczęściej powstają w utworach względnie jednorodnych, w przypadku których cechy odpornościowe osłabiają się w miarę zbliżania do strefy krawędziowej klifu. Dynamika zerw warunkowana jest przede wszystkim wezbraniami sztormowymi i opadami atmosferycznymi. Badania zerw wykazały również, że ich dynamika często warunkowana jest aktualnym stanem wód gruntowych, który pozostaje w ścisłym powiązaniu z opadami atmosferycznymi. Na podstawie przeprowadzonych badań stwierdzono, iż zmienność morfologiczna zerw cechuje się wyraźną etapowością. W trakcie ewolucji zerwy przechodzą przez trzy fazy rozwoju: inicjacji, transportu i degradacji.The main problem of the study was morphodynamics of slumps on Wolin island cliffed coast with particular emphasis on the stages of their development. The main goal of the study was to define determination of conditions affecting slumps development, determination of threshold values of morphogenetic factors and to determine the effect of extraordinary and extreme processes in the slumps formation and development. Geomorphological and geotechnical studies, geodetic surveys and dendrogeomorphological analyses have been carried out on four slumps located on the stretch of coast cliffs located between Grodno and Biała Góra. The basis of slumps selection was morphological and morphometrical differentiation, stage of development and dynamics. The investigations have shown that slumps are a special type of Wolin island cliffed coast morphology. The studied forms are characterized by small variations in lithology, usually arise in relatively homogeneous sediments, where the characteristics of resistance properties decreases as it approaches the cliff-edge zone. The dynamics of slumps is mainly conditioned by storm surges and rainfalls. The study also showed that morphological variability of slumps is conditioned by current level of groundwater which is in close association with precipitation. On the base of undertaken studies, the conclusion, that morphodynamics of slumps is characterized by three stages of evolution: initiation, transportation and degradation, was made
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
Traineeships as a form of improvement of Geoinformation students' professional competences on the labour market
Get PDFThe today's labour market poses serious challenges to be faced by higher education graduates. Job applicants' specialised substantial knowledge, well-developed interpersonal competencies and - not rarely - professional experience are the essential features which are mostly appreciated by employers. Inexperienced 'fresh' higher education graduates often lack these requisite abilities and skills, which makes them hard to find their way in the labour market and get their dream job.
In 2015 at the Adam Mickiewicz University - thanks to the initiative of two faculties - the "Bridge to the labour market" traineeship program was launched, which was attended by last-year students. The project was funded under the 'Human Capital' Operational Program, Priority IV Higher education and science. The article shows the key assumptions and results of the project
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Cliff Retreat Induced by Series of Storms at Miȩdzyzdroje (Poland)
No full textIn Miȩdzyzdroje, a coastal town in Poland, significant cliff retreat has been observed in recent times. It used to be considered mainly a response to storm events with particularly high water levels and wave energy. However, morphology of cliff coasts is shaped not only by the most extreme storm surges or by a number of accompanying processes such as precipitation. Much wider effects are now being linked to the occurrence of series of subsequent storms. This research uses a set of five terrestrial LiDAR surveys carried out between November 2016 and April 2017 to determine short-term cliff erosion associated with two major storm surges and several smaller storms. The surveys covered the whole cliff profile as well as the topography of the adjacent beach. Results indicate a considerable reduction in beach levels as a first important effect. Frequency of the storm events prevented the beach from recovering between the surges, allowing the waves to directly attack the cliff base. Consequently, the cliff foot line retreated up to 4.7 m. This resulted in an erosion volume exceeding 25.000 m within 5 sections of the coastal cliff analysed, which are 500 m long in total. This work demonstrates that the development of the coastline is not only directly linked with the rate of erosion at given storm parameters. More importantly, the frequency of extreme events has to be considered.Hydraulic Structures and Flood Ris
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