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Abstrakt

The present study focused on relationships between personality traits, self-efficacy, self-esteem and basic trust, and well-being in context of entrepreneurial activity. Participants were 301 unemployed people, 157 of whom had received a grant from an employment agency to start their own business. Participants completed measures of personality traits, self-efficacy, self-esteem, basic trust, satisfaction with life, positive and negative affect. To verify if beliefs about the self and about the world mediated relationships between personality traits and well-being we conducted a multiple-sample SEM. The study results confirm that the beliefs mediate relationships between personality traits and well-being. They also show that different types of beliefs serve a different function, depending on an individual’s circumstances. Among grant acceptors, self-efficacy did not impact well-being, while self-esteem and basic trust had similar functions in both groups.
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Autorzy i Afiliacje

Mariusz Zięba
Monika Surawska
Anna Maria Zalewska

Abstrakt

Members of the Nyctaginaceae Jussieu. are distributed throughout southern Africa. Eight species of the family occur naturally in arid parts of Namibia. These species have acquired the ability to survive and reproduce in these dry conditions. They are xerophytes, which have been described as drought evaders, avoiders, and drought-tolerant. In the Nyctaginaceae, Boerhavia deserticola, B. hereroensis, Commicarpus helenae and C. squarrosus are thought to be drought avoiders. In this study we investigated their stem, leaf and anthocarp anatomy for adaptations to arid environments. The results indicated that the four species are avoiders, with modifications of the trichomes, secretions, crystals, secondary growth, Kranz mesophyll, water storage cells, tannins, mucilage, inner and outer stomatal ledges, large-diameter xylem vessels, and the presence of sclerenchyma in their stems, leaves and anthocarps. These adaptations enable the plants to tolerate arid conditions, conserve water and maintain a high photosynthetic rate, and aid seed dispersal.

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Autorzy i Afiliacje

Madeleen Struwig
Anine Jordaan
Stefan Siebert

Abstrakt

First psychological research at Arctowski station were conducted in 1979. In the nineties the American team under direction of prof. L. Palinkas conducted research in order to determine the patterns of multicultural psychosocial adaptation. The author discusses stress as a result of isolation and extreme conditions.

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Autorzy i Afiliacje

Stanisław Rakusa-Suszczewski

Abstrakt

Artykuł poświęcony jest problemom funkcjonowania osób z niepełnosprawnością w polskim systemie penitencjarnym. Zostały w nim zaprezentowane rozważania teoretyczne dotyczące istoty kary pozbawienia wolności, problemów adaptacyjnych, typów strategii przystosowawczych, systemu terapeutycznego i jego ograniczeń, a także przesłanek do realizacji badań własnych.

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Autorzy i Afiliacje

Ilona Fajfer-Kruczek

Abstrakt

This paper presents the results of a study on the Polish version of the Generic Conspiracist Beliefs Scale (GCBS), which was designed to measure individual differences in conspiracist thinking (Brotherton, French, & Pickering; 2013). The Polish version of the scale had excellent internal consistency as measured by Cronbach alpha: .93. The Polish version also had excellent test-retest stability. To check the validity of the questionnaire, various tools were used to measure the characteristics that can be correlated with conspiracist thinking. As a result, it was found that conspiracist thinking is positively correlated with the external locus of control, the results obtained in the Scale of Belief in Zero-Sum Game and the results of the MMPI-2 Paranoia scale. It was also found that patients with paranoid personality disorder and paranoid schizophrenia had higher results on the adapted scale than healthy subjects. In sum, the Polish version of GCBS had satisfactory psychometric properties, which makes it useful for measuring conspiracist thinking.

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Autorzy i Afiliacje

Adam Siwiak
Malwina Szpitalak
ORCID: ORCID
Romuald Polczyk

Abstrakt

This work addresses the problem of adaptive observer design for nonlinear systems satisfying incremental quadratic constraints. The output of the system includes nonlinear terms, which puts an additional strain on the design and feasibility of the observer, which is guaranteed under the satisfaction of an LMI, and a set of algebraic constraints. A particular case where the output nonlinearity matches the unknown parameter coefficient is also discussed. The result is illustrated through a numerical example for the chaos synchronization of the Rössler system.
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Autorzy i Afiliacje

Lazaros Moysis
1
Meenakshi Tripathi
2
Mahendra Kumar Gupta
2
Muhammad Marwan
3
Christos Volos
1

  1. Laboratory of Nonlinear Systems – Circuits & Complexity, Physics Department, Aristotle University of Thessaloniki, Thessaloniki, Greece
  2. Department of Mathematics, National Institute of Technology Jamshedpur, Jamshedpur, India
  3. Department of Mathematics, Zhejiang Normal University, Jinhua, China

Abstrakt

The article applies the concept of anchoring, defined as the process of searching for footholds and points of reference which allows individuals to acquire socio-psychological stability and security and function effectively in a new environment, to explore complex, multidimensional and flexible adaptation and settlement processes among migrants from Ukraine in Poland. Based on 40 in-depth interviews and questionnaires with migrants resident in Warsaw and its vicinity, we argue that the traditional catego-ries employed for analysing migrants’ adaptation and settlement such as ‘integration’ or ‘assimilation’ are not always adequate to capture the way of functioning and experience of contemporary Ukrainian migrants. Rather than traditional categories, we propose to apply the concept of anchoring which ena-bles us to capture Ukrainians’ ‘fluid’ migration, drifting lives and complex identities as well as mecha-nisms of settling down in terms of searching for relative stability rather than putting down roots. The paper discusses the ambiguous position of Ukrainian migrants in Poland constructed as neither-strangers nor the same, gives insight into their drifting lives and illuminates ways of coping with tem-porariness and establishing anchors to provide a sense of stability and security. This approach, linking identity, security and incorporation, emphasises, on the one hand, the psychological and emotional as-pects of establishing new footholds and, on the other hand, tangible anchors and structural constraints. Its added value lies in the fact that it allows for the complexity, simultaneity and changeability of an-choring and the reverse processes of un-anchoring to be included.

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Autorzy i Afiliacje

Aleksandra Grzymała-Kazłowska
Anita Brzozowska

Abstrakt

This article is devoted to contemporary return migrations by Kazakhs – a process of great significance for the population and cultural policies of the government of independent Kazakhstan. I examine the repatriation process of the Kazakh population from the point of view of the cultural transformations of Kazakh society itself, unveiling the intended and unintended effects of these return migrations. The case of the Kazakh returns is a historically unique phenomenon, yet it provides data permitting the formulation of broader generalisa-tions. It illustrates the dual impact of culturally different environments, which leads to a simultaneous pre-serving and changing of the culture of the new immigrants. The analyses found in this article are based upon data collected during two periods of fieldwork conducted in June–July 2016 and March 2018 at several locations in Kazakhstan and in cooperation with a Kazakh university. The research methodology is anchored in multi-sited, multi-year fieldwork.

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Autorzy i Afiliacje

Ewa Nowicka

Abstrakt

A novel method of active noise control using adaptive radiation sound sources is investigated. A finite element model of a modal enclosed sound field is excited harmonically, representing a noise field in the low-frequency range. The control sources are comprised of elementary dipole sources for which the driving signals are adjusted by an optimization method. Two set-up cases of the proposed compound sources are investigated. The coupling of the control sources with the modal sound field is discussed. The simulated performance of the proposed method is compared with that of a system with distributed simple sources and the results show the effectiveness of the sources with adaptive radiation for active noise control in small enclosures.

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Autorzy i Afiliacje

Marios Giouvanakis
Christos Sevastiadis
George Papanikolaou

Abstrakt

Passive noise reduction methods require thick and heavy barriers to be effective for low frequencies and those clasical ones are thus not suitable for reduction of low frequency noise generated by devices. Active noise-cancelling casings, where casing walls vibrations are actively controlled, are an interesting alternative that can provide much higher low-frequency noise reduction. Such systems, compared to classical ANC systems, can provide not only local, but also global noise reduction, which is highly expected for most applications. For effective control of casing vibrations a large number of actuators is required. Additionally, a high number of error sensors, usually microphones that measure noise emission from the device, is also required. All actuators have an effect on all error sensors, and the control system must take into account all paths, from each actuator to each error sensor. The Multiple Error FXLMS has very high computational requirements. To reduce it a Switched-Error FXLMS, where only one error signal is used at the given time, have been proposed. This, however, significantly reduces convergence rate. In this paper an algorithm that uses multiple errors at once, but not all, is proposed. The performance of various algorithm variants is compared using simulations with the models obtained from real active-noise cancelling casing.

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Autorzy i Afiliacje

Krzysztof Mazur
Stanislaw Wrona
Anna Chraponska
Jaroslaw Rzepecki
Marek Pawelczyk

Abstrakt

A strategic vision to ensure an adequate, safe and secure drinking water supply presents a challenge, particularly for such a small country as Jordan, faced with a critical supply-demand imbalance and a high risk of water quality deterioration. In order to provide sustainable and equitable long-term water management plans for the future, current and future demands, along with available adaptation options should be assessed through community engagement. An analysis of available water resources, existing demands and use per sector served to assess the nation’s historic water status. Taking into account the effect of both population growth and rainfall reduction, future per sector demands were predicted by linear temporal trend analysis. Water sector vulnerability and adaptation options were assessed by engaging thirty five stakeholders. A set of weighed-criterions were selected, adopted, modified, and then framed into comprehensive guidelines. A quantitative ratio-level approach was used to quantify the magnitude and likelihood of risks and opportunities associated with each proposed adaptation measure using the level of effectiveness and severity status. Prioritization indicated that public awareness and training programs were the most feasible and effective adaptation measures, while building new infrastructure was of low priority. Associated barriers were related to a lack of financial resources, institutional arrangements, and data collection, sharing, availability, consistency and transparency, as well as willingness to adapt. Independent community-based watershed-vulnerability analyses to address water integrity at watershed scale are recommended.

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Autorzy i Afiliacje

Nezar Hammouri
Mohammad Al-Qinna
Mohammad Salahat
Jan Adamowski
Shiv O. Prasher

Abstrakt

The operating modes of the automatic control system for electromechanical converters for synchronization of rotor speeds have been developed and investigated. The proposed automatic speed control system allows adjusting the slave engine to the master one in a wide range from 0 to 6000 rpm. To improve the synchronization accuracy an adaptive algorithm is proposed that allows to increase the synchronization accuracy by 3-4 times. The proposed model of an adaptive automatic control system with an observing identification tool makes it possible to minimize the error in the asynchrony of the rotation of the rotors of two electromechanical converters.
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Autorzy i Afiliacje

Aidana Kalabayeva
1 2
Waldemar Wójcik
3
Gulzhan Kashaganova
4
Kulzhan Togzhanova
5
Zhaksygul Sarybayeva
1

  1. Academy of Logistics and Transport, Almaty, Kazakhstan
  2. Almaty University of Power Engineering and Telecommunications Almaty, Kazakhstan
  3. Lublin University of Technology, Lublin, Poland
  4. Turan University, Almaty, Kazakhstan
  5. Almaty Technological University, Almaty, Kazakhstan

Abstrakt

In this paper, Recursive Least Square (RLS) and Affine Projection (AP) adaptive filters are designed using Xilinx System Generator and implemented on the Spartan6 xc6slx16- 2csg324 FPGA platform. FPGA platform utilizes the non-restoring division algorithm and the COordinate Rotation DIgital Computer (CORDIC) division algorithm to perform the division task of the RLS and AP adaptive filters. The Non-restoring division algorithm demonstrates efficient performance in terms of convergence speed and signal-to-noise ratio. In contrast, the CORDIC division algorithm requires 31 cycles for division initialization, whereas the non-restoring algorithm initializes division in just one cycle. To validate the effectiveness of the proposed filters, a set of ten ECG records from the BIT-MIT database is used to test their ability to remove Power Line Interference (PLI) noise from the ECG signal. The proposed adaptive filters are compared with various adaptive algorithms in terms of Signal-to-Noise Ratio (SNR), convergence speed, residual noise, steady-state Mean Square Error (MSE), and complexity.
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Autorzy i Afiliacje

Harith H. Thannoon
1
Ivan A. Hashim
1

  1. University ofTechnology, Iraq

Abstrakt

Understanding and measuring mental well-being among adolescents has recently become a priority. The validity and reliability study of the 7-item short version of the Warwick Edinburgh Mental Well-Being Scale (SWEMWBS) has not been examined in Turkish adolescents. Therefore, this study aims to adapt the 7-item Warwick Edinburgh Mental Well-Being Scale to Turkish and examine the relationships between loneliness, emotional flexibility, resilience, and mental well-being. The data were collected by convenience sampling method from 820 adolescents aged 14-18 from 73 city of Turkey. During the adaptation process of SWEMWBS, confirmatory factor analysis, concurrent validity, and reliability analysis were performed. The findings confirmed the one dimensionality of the 7-item scale on the Turkish adolescent sample. In addition, a significant positive relationship was found between mental well-being and emotional flexibility and resilience. However, there was a significant negative correlation between mental well-being and loneliness. The results showed that the Turkish version of SWEMWBS had strong psychometric properties in adolescents.
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Autorzy i Afiliacje

Yakup İme
1

  1. Necmettin Erbakan University, Konya-Turkey, Turkey

Abstrakt

The paper is devoted to the description of the methodology and research by design carried out to identify solutions enhancing the functional flexibility of a high-rise building located in Warsaw at. Grzybowska Street. The work presents the theoretical background as well as the conducted research and methodology. The scope of solutions related to functional flexibility concerned the interchangeability of service functions in the podium part of the building, changes in the use of the parking lot, and the provision of the means of changes in the arrangement of types and variants of types of apartments on the apartments levels. The investigation was carried out in the pre-design and design phases. Objectives and criteria of solutions were defined, and research works were carried out through iterations and checking in terms of the cost-effectiveness . The adopted solutions consist in designing the optimal hard portion of the building – the core, the structural system, the arrangement of zones and installation rooms, and the use of structural and spatial over-designed systems. An optimal facade module has been developed. The research aims to introduce the design practice to the issue of flexibility, which is nowadays important for economic and environmental reasons.
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Autorzy i Afiliacje

Marcin Goncikowski
1
ORCID: ORCID

  1. Warsaw University of Technology, Faculty of Architecture, ul. Koszykowa 55, 00-659 Warsaw, Poland

Abstrakt

The polarized electromagnetic waves have significant impact on the performance of adaptive antenna arrays. In this paper we investigate the effect of polarized desired and undesired signals on the performance of electronically steered beam adaptive antenna arrays. To achieve this goal, we built an analytical signal model for the adaptive array, in order to analyze, and compare the effect of polarized signals on the output SINRs (signal to interference plus noise ratios) of single-dipole, and cross-dipole adaptive antenna arrays. Based on a proof-of-concept experiment, and on MATLAB simulation results, it will be shown that cross-dipole adaptive antenna arrays exhibit better performance in comparison with single-dipole adaptive antenna arrays in presence of randomly polarized signals. However, single-dipole arrays show better performance under certain operating conditions.

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Autorzy i Afiliacje

Amin H. Al Ka'bi

Abstrakt

Considerable climate changes have been observed in the last 50 years – warming in every spatial scale (global, continental, regional and local), changes in atmospheric precipitation and several weather extremes, shrinking of cryosphere and sea level rise. The warming since the mid-20th century has predominantly been due to greenhouse gas emissions from human activities, in particular the combustion of fossil fuels, farming and other changes in land use. The paper presents the aspects of impact of climate change for farming and food security and the impact of farming for climate change in Polish and global scale. Agriculture holds a meaningful potential of reduction of greenhouse gas emissions and of carbon sequestration. It will be necessary to manage optimally advantageous changes and effectively adapt to adverse changes.

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Autorzy i Afiliacje

Gabriela Czapiewska

Abstrakt

This essay examines the Nibelungensage and its filmic adaptations within the framework of the multi- perspective approach of German Studies. It is about the approaches of Casper-Hehne/ Schweiger in the sense of a synthetic approach to the concept of culture, and Nünning/ Nünning, whose terminology is extended to filmic narrations. The intertextuality of the “Nibelungen-films” and of the “Nibelungensage” is also relevant. The analysis focuses on the films by Fritz Lang (1924), Harald Reinl (1966/67), Uli Edel (2004) and Ralf Huettner (2008).

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Autorzy i Afiliacje

Barbara von der Lühe

Abstrakt

The selection of a reference model (RM) for a Model-Reference Adaptive Control is one of the most important aspects of the synthesis process of the adaptive control system. In this paper, the four different implementations of RM are developed and investigated in an adaptive PMSM drive with variable moment of inertia. Adaptation mechanisms are based on the Widrow-Hoff rule (W-H) and the Adaptation Procedure for Optimization Algorithms (APOA). Inadequate order or inaccurate approximation of RM for the W-H rule may provide poor behavior and oscillations. The results prove that APOA is robust against an improper selection of RM and provides high-performance PMSM drive operation.
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Autorzy i Afiliacje

Rafał Szczepański
1
ORCID: ORCID
Tomasz Tarczewski
1
ORCID: ORCID
Lech Grzesiak
2
ORCID: ORCID

  1. Department of Automatics and Measurement Systems, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland
  2. Institute of Control and Industrial Electronics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland

Abstrakt

The hydronym Szywra refers to the small river in the Warta basin flowing in the central part of Greater Poland. Although its name remained unclear for most of the researchers, it was believed to be of Pre-Slavic or Balto-Slavic origin. The paper reveals that these hypotheses were based on the wrong interpretation of the source material, and provides a new etymology for the name Szywra. Based on the critical analysis of all of the reachable records of names referring to the river Szywra, it has been proven that its Polish name is an adaptation of the former German name Schieferbach. Such a process was possible due to the long-term bilingual situation in the region of Greater Poland.

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Autorzy i Afiliacje

Paweł Swoboda

Abstrakt

Europejski Zielony Ład jest strategią, która ma za zadanie doprowadzić do osiągnię-cia neutralności klimatycznej Europy do 2050 r. Strategia ta składa się z kilku inicjatyw, m.in: Europejskiego prawa o klimacie, Europejskiego Paktu Klimatycznego, strategii Unii Europejskiej dotyczącej adaptacji do zmiany klimatu, strategii “od pola do stołu” oraz planu zredukowania emisji gazów cieplarnianych o 55% do roku 2030. Zamierze-niem autorki niniejszego artykułu jest przedstawienie celów i struktury Europejskiego Zielonego Ładu ze szczególnym uwzględnieniem działań zaplanowanych w ramach gospodarki morskiej. Sektor morski ma odegrać kluczową rolę w ograniczaniu zapo-trzebowania na zasoby gruntowe oraz przeciwdziałaniu zmianie klimatu poprzez zwięk-szenie i poprawę wykorzystania zasobów wodnych i morskich.
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Autorzy i Afiliacje

Monika Adamczak-Retecka
1
ORCID: ORCID

  1. Katedra Prawa Europejskiego i Komparatystyki Prawniczej, Wydział Prawa i Administracji Uniwersytetu Gdańskiego

Abstrakt

This work describes a new study to achieve a combination of modified function projective synchronization between three different chaotic systems through adaptive control. Using the Lyapunov function theory, the asymptotic stability of the error dynamics is obtained and discussed. Further, we set some appropriate initial conditions for the state variables and assigning specific values to the parameters and obtain the graphical results, which shows the efficiencies of the new method. Finally, we summarized our work with conclusion and references.

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Autorzy i Afiliacje

N.A. Almohammadi
E.O. Alzahrani
M.M. El-Dessoky

Abstrakt

The Klein et al. Unidimensional Target neutral (K.U.T.) commitment measure is a promising short self-report measure forming a counterpoint to the popular multidimensional approach to the assessment of commitment. The goals of the present study were to examine the construct reliability, convergent, discriminant, an incremental validity; and the measurement invariance (sex, education, job position) of the Polish version of K.U.T. The scale was evaluated using a sample of adults working for Polish organizations. Confirmatory factor analyses confirm original structure of the K.U.T.-PL and its measurement reliability and validity. Moreover, performed analysis showed that K.U.T.-PL was invariant across sex, education, and job position group. In conclusion, the findings confirm that the Polish adaptation of the K.U.T. presents solid psychometric properties and initial evidence of validity.
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Autorzy i Afiliacje

Dariusz Turek
1
ORCID: ORCID
Agnieszka Wojtczuk-Turek
1
ORCID: ORCID
Howard J. Klein
2
ORCID: ORCID

  1. SGH Warsaw School of Economics, Warsaw, Poland
  2. Fisher College of Business, The Ohio State University, Columbus, United States

Abstrakt

The article deals with the patterns of segmental adaptation of Polish voiceless affricates in initial and fi nal CC (consonant + consonant) clusters by native speakers of English. The data have been collected in an online loanword adaptation experiment in which 30 native speakers of Southern British English reproduced Polish words containing such sequences. The major problem posed by the data is the divergent adaptation of the post-alveolar /͡tʂ/ vs. the pre-palatal /͡tɕ/, with the former substituted mainly with the coronal plosive [t] and the latter realised as the palato-alveolar affricate [͡tʃ]. It is argued that these patterns of nativisation are due to the highlyranked IDENT-IO[dist] constraint, which militates against the modifi cation in the value of the feature [distributed]. Furthermore, it is demonstrated that the experimental results provide evidence in favour of the fundamental assumptions underlying the phonological approach to loan assimilation, namely the phonological input view as well as the faithful perception view.

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Autorzy i Afiliacje

Marek Radomski

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