Wyniki wyszukiwania dla: MIGRATION CHALLENGES, SOCIAL MEDIA, UKRAINE, EUROPEAN COUNTRIES, TOPIC MODELLING - MOST Wiedzy

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Wyniki wyszukiwania dla: MIGRATION CHALLENGES, SOCIAL MEDIA, UKRAINE, EUROPEAN COUNTRIES, TOPIC MODELLING

Wyniki wyszukiwania dla: MIGRATION CHALLENGES, SOCIAL MEDIA, UKRAINE, EUROPEAN COUNTRIES, TOPIC MODELLING

  • Future opportunities for products derived from black soldier fly (BSF) treatment as animal feed and fertilizer - A systematic review

    Publikacja
    • S. A. Siddiqui
    • A. S. Gadge
    • M. Hasan
    • T. Rahayu
    • S. N. Povetkin
    • I. Fernando
    • R. Castro Munoz

    - ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY - Rok 2024

    The pursuit of novel food products with good nutritional value for both direct and indirect human consumption is crucial. Given the nutritional benefits of insects and the sustainability of this sort of farming, using them as food for farmed animals is a promising alternative. In this regard, the black soldier fly (Hermetia illucens) is most capable of efficiently converting a wide variety of organic materials, from food waste...

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  • Application potential of dummy molecularly imprinted polymers as solidphase extraction sorbents for determination of low-mass polybrominated diphenyl ethers in soil and sediment samples

    Publikacja

    - MICROCHEMICAL JOURNAL - Rok 2019

    Despite the introduction of restrictive regulations in the USA and the European Union, polybrominated diphenyl ethers (PBDEs) are still found in various types of environmental and biological samples at significant concentration levels. The presence of these persistent organic pollutants in the environment raises important issues because of their negative impact on immunological and neurological systems, and on the hormonal balances...

  • GIS three-dimensional Modelling with geo-informatics techniques

    The integration issue of virtual models and geo-referenced database have a very broad spectrum of potential applications. Before the integration issue was on the cusp, it was quite problematic to combine three-dimensional models with the geo-referenced database. An integrated database contains a variety of data including such as object orientated data model and raster data. Within this paper, authors present an integration process...

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  • Green and sustainable hydrogels based on quaternized chitosan to enhance wound healing

    Publikacja

    - CHEMICAL ENGINEERING JOURNAL - Rok 2024

    Hydrogel-based biomaterials applied as wound dressings provide the wound with a moist environment, which facilitates tissue regeneration through granulation and re-epithelialization. The inherent flexibility and adjustable architecture of hydrogels enables incorporation of cells, antimicrobial drugs, growth factors, and bioactive compounds, which leads to expediting wound contraction and enhancing the regeneration process. The...

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  • Company Culture, Knowledge Sharing and Organizational Performance. The Employee’s Perspective

    Publikacja

    - Rok 2017

    Knowledge sharing, as a basic prerequisite for knowledge creation, is a dynamic social process characterized by profound human interactions. The process of knowledge sharing can be supported by organizational culture which is a set of values and norms giving identity to each enterprise. As a valuable element of intellectual capital, organizational culture contributes to achieving strategic business goals. The purpose of this article...

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  • Poroelastic Low Noise Road Surfaces

    Publikacja

    Noise is one of the most important problems related to road traffic. During the last decades, noise emitted by engine and powertrain of vehicles was greatly reduced and tyres became a clearly dominant noise source. The paper describes the concept of low noise poroelastic road surfaces that are composed with mineral and rubber aggregate bound by polyurethane resin. Those surfaces have a porous structure and are much more flexible...

  • Typology of low developed non-metropolitan sub-regions in the European Union

    This paper shows a typology of 319 NUTS-3 sub-regions in the European Union. The selected sub-regions are non-metropolitan sub-regions, whose gross domestic product per capita in 2011 was below 75% of the EU average. The objective of this typology was to recognize diversity in the examined sub-regions as a starting point for the selection of areas for future comparative research. The typology takes into account 24 variables related...

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  • Ultra Low Noise Poroelastic Road Surfaces

    Publikacja

    Noise is one of the most important environmental problems related to road traffic. During the last decades, the noise emitted by the engines and powertrains of vehicles was greatly reduced and tires became a clearly dominant noise source. The article describes the concept of low noise poroelastic road surfaces that are composed of mineral and rubber aggregate bound by polyurethane resin. Those surfaces have a porous structure and...

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  • Relevance of the EU Structural Funds’ Allocation to the Needs of Combating Air Pollution in Poland. Analysis of the Operational Programmes of Regions Threatened With Critical Air Pollution from Distributed Energy Sources

    Publikacja

    Recent years, the European Environmental Agency, has been reporting air quality parameters in Poland, as the poorest among all the EU countries. Despite of adoption of the EU legislation on energy efficiency and energy performance of buildings, existing legal solutions occur insufficient in reducing air pollution in Polish regions. Lack of an effective schemes supporting complex thermal renovation of buildings, exchange of inefficient...

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  • MODELOWANIE WYBRANYCH MIAR BEZPIECZEŃSTWA RUCHU NA DŁUGICH ODCINKACH DRÓG

    Publikacja

    - Rok 2016

    Każdego roku w wypadkach drogowych na świecie życie traci prawie 1,3 mln osób, co oznacza prawie niemal 3 tys. ofiar dziennie,. Tyle samo zabitych w ruchu drogowym odnotowujemy rocznie w Polsce. Ekonomiczne straty w wyniku tych wypadków wynoszą ok. 2% światowego PKB. W roku 2010 Organizacja Narodów Zjednoczonych (ONZ) przyjęła rezolucję pt. „Dekada działań na rzecz bezpieczeństwa ruchu drogowego na lata 2011 – 2020” rozpoczynającą...

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  • Redesigning Informal Beirut: Shaping the Sustainable Transformation Strategies

    Lebanon is distinguished by its strategic geographical location among the Arab countries. Beirut, as the capital city and the major commercial and cultural centre of the country, is a point of interest for migrants. The region has witnessed many changes since the end of World War II, which have resulted in internal and external conflicts, migrations, the centralization of the country’s economy, etc. Furthermore, the city has witnessed...

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  • The Use of Big Data in Regenerative Planning

    With the increasing significance of Big Data sources and their reliability for studying current urban development processes, new possibilities have appeared for analyzing the urban planning of contemporary cities. At the same time, the new urban development paradigm related to regenerative sustainability requires a new approach and hence a better understanding of the processes changing cities today, which will allow more efficient...

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  • Towards Changes of Macro-Economic Structures in Middle Eastern Countries. Empirical Evidence for 1970–2018

    Publikacja

    Middle East countries share a wide bundle of specific structural economic features and one of the latest is a high dependency of these economies on fossil fuels, which is quantitatively demonstrated through the share of oil and gas revenues in total export, but also in gross domestic product composition. This high economic dependency on natural resources on one hand has recently generated a material wealth of Middle Eastern countries...

  • Impact of Innovative Financial Products on Financial Systems: Exchange Traded Products and the Polish Financial System

    Publikacja

    Exchange Traded Products (ETPs) are one of the most recent and most rapidly developing financial products. As their assets grow they have an increasing impact on financial systems in many countries, including USA, UK or Japan. Development of ETPs is linked with many opportunities and threats for the local financial systems. Their correct assessment is becoming more difficult due to the growing complexity of the available products,...

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  • Zastosowanie pogłębionych wywiadów osobistych w badaniu postrzegania treści internetowych na temat produktów i firm

    Publikacja

    Celem artykułu jest zaprezentowanie postrzegania internetowych treści przez internautów oraz sposobów pozyskiwania wartościowych informacji, związanych z organizacjami, bądź produktami. Zaprezentowano w nim wyniki uzyskane dzięki wykorzystaniu jednej z technik badań jakościowych – indywidualnych wywiadów częściowo ustrukturyzowanych. Opracowanie nawiązuje do koncepcji inbound marketing, jednak koncentruje się na potrzebach i zachowaniach...

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  • Sub-national structures matter when evaluating physical activity promotion: Lessons from Germany

    Publikacja
    • S. Forberger
    • P. Gelius
    • S. Messing
    • K. Volf
    • L. Kelly
    • S. J. E. Taylor
    • J. Żukowska
    • J. Lakerveld
    • C. Woods

    - EUROPEAN JOURNAL OF PUBLIC HEALTH - Rok 2020

    Background Public policies are increasingly acknowledged as important part of promoting physical activity (PA). However, especially in states with sub-national administrative structures such as Germany, national and sub-national approaches differ considerably. In Germany, sport for all (SfA) promotion is mostly organized at sub-national level, which is usually not covered in national evaluations. Knowledge of these structures helps...

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  • GVC and wage dispersion. Firm-level evidence from employee-employer database

    Research background: Wage inequalities are still part of an interesting policy-oriented research area. Given the developments in international trade models (heterogeneity of firms) and increasing availability of micro-level data, more and more attention is paid to wage differences observed within and be-tween firms. Purpose of the article: The aim of the paper is to address the research gap concerning limited cross-country evidence...

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  • Zrównoważona rewitalizacja „modelowego” terenu zdegradowanego z wykorzystaniem rozwiązań projektu Unii Europejskiej Hombre

    Publikacja

    - Rok 2015

    Rosnąca liczba terenów zdegradowanych stanowi rosnący problem wielu krajów w Europie i na świecie. Celem pracy jest przedstawienie koncepcji zrównowazonej rewitalizacji modelowego terenu zdegradowanego w oparciu o narzędzia opracowane w ramach projektu HOMBRE (VII EU PR). Koncepcja koncentruje się na osiągnięciu najwyższych możliwych zysków ekonomicznych uwzgledniając zasady zrównowazonego rozwoju i potrzeby lokalnej społeczności....

  • Adopting Collaborative Games into Agile Requirements Engineering

    Publikacja

    In agile software development, where great emphasis is put on effective informal communication involving diverse stakeholders, success depends on human and social factors. Not surprisingly, the Agile Manifesto advocates principles and values such as “individuals and interactions over processes and tools”, “focus on the customer”, “collaborate regularly”, “communicate face-to-face within the team” and “have regular team introspection”....

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  • A comprehensive survey on low-cost ECG acquisition systems: Advances on design specifications, challenges and future direction

    Publikacja
    • N. Faruk
    • A. Abdulkarim
    • I. Emmanuel
    • Y. Y. Folawiyo
    • K. S. Adewole
    • H. A. Mojeed
    • A. A. Oloyede
    • L. A. Olawoyin
    • I. A. Sikiru
    • M. Nehemiah... i 5 innych

    - Biocybernetics and Biomedical Engineering - Rok 2021

    Availability of low-cost, reliable, and portable Electrocardiography (ECG) devices is still very important in the medical world today. Despite the tremendous technological advancement, Cardiovascular Diseases (CVDs) remain a serious health burden claiming millions of lives on an annual basis globally. This is more prevalent in Low and Middle-Income Countries (LMICs) where there are huge financial instability and lack of critical...

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  • Knowledge Management Approaches of Small and Medium-Sized KIBS Firms: a Descriptive Analysis of Four Countries

    Publikacja
    • V. Alexandru
    • A. G. Andrei
    • E. Bolisani
    • J. G. Cegarra Navarro
    • M. Paiola
    • E. Scarso
    • E. M. Vatamanescu
    • M. Zięba

    - Rok 2018

    Purpose –There is evidence that small and medium sized enterprises (SMEs) do not manage knowledge the same way as large firms, and that they approach knowledge management (KM) in various ways. However, the literature on this topic is still scarce and fragmented. In order to fill this gap, the paper aims to single out and discuss the different features that characterize the approaches to KM adopted by small companies. Design/methodology/approach...

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  • Research on the Use of Mobile Devices and Headphones on Pedestrian Crossings—Pilot Case Study from Slovakia

    Publikacja

    - Safety - Rok 2021

    The topic of the use of mobile devices and headphones on pedestrian crossings is much less explored in comparison to the use of the mobile phone while driving. Recent years have seen many discussions on this issue, especially in foreign countries. The Slovak Republic, however, has not been giving it enough attention (and it is not mentioned in the National Road Safety Plan for the Slovak Republic from 2011 to 2020). This paper...

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  • Międzysektorowa mobilność zatrudnienia oraz płac a efektywność rynku pracy.

    Publikacja

    Celem artykułu jest uzyskanie odpowiedzi na pytanie, czy ocenę efektywności funkcjonowania rynków pracy, rozumianej jako zdolność rynków do „oczyszczania się”, można przedstawić za pomocą analizy międzysektorowej mobilności płac oraz zatrudnienia. W połowie lat 90. XX wieku Paul Krugman dowodził, iż negatywne szoki gospodarcze skutkują w krajach europejskich wzrostem bezrobocia, natomiast w USA wzrostem rozpiętości płac. Tymczasem...

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  • Mind the framing: Match purpose and context

    Publikacja

    - Rok 2023

    In several ways, the following chapters will allude to the concept of frames. The assumptions of a mathematical model tell us what it can explain and what it cannot (see chapter 5). The trade-off between the usefulness of a mathemati- cal model and the scale of complexity it seeks to capture further conditions the narrative, highlighting or downsizing cognitive elements relevant to responsible modelling (see ‘Mathematics and tales’...

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  • Polish Suburban Landscape made of Enterpereneurial Tissue

    Publikacja

    - Rok 2013

    Dwa ostatnie dekady w Polsce to okres ekspansywny rozwój małych przedsiębiorstw i równolegle dynamiczne przekształcenia przestrzeni wokół miasta . Rozwój tych dwóch zjawisk nastąpiło w okresie transformacji gospodarczej po 1989 roku . Głównym celem pracy jest zbadanie poziomu interakcji między procesem suburbanizacji i rozwojem sektora MSP w wybranych podmiejskich obszary, na przykładzie Metropolii Trójmiejskiej.

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  • Composition of fatty acids in selected sorts of biscuits, offered for children

    Publikacja

    - Acta Alimentaria - Rok 2012

    The fatty acid (FA) composition, especially total trans-fatty acids (TFA) content in 12 assortments of biscuits offered for children, produced by four different companies, were determined by gas chromatography. Total fat content of the biscuit samples ranged from 2.2 to 22.8 g/100 g of product. The major FAs were palmitic C16:0, oleic C18:1, and linoleic C18:2 acids. Depending on the biscuit type, the total saturated fatty acids...

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  • Detection of Toxoplasma gondii Infection in Small Ruminants: Old Problems, and Current Solutions

    Publikacja

    Toxoplasmosis is a parasitic zoonosis of veterinary importance, with implications for public health. Toxoplasma gondii infection causes abortion or congenital disease in small ruminants. Moreover, the consumption of infected meat, cured meat products, or unpasteurized milk and dairy products can facilitate zoonotic transmission. Serological studies conducted in various European countries have shown the high seroprevalence of specific...

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  • The Dilemmas of Choosing a Suitable Technology for Low Energy and Passive Houses in the Context of their Overheating Issues

    In compliance with European Union directives, numerous countries are introducing increasingly stricter legal limits on the estimated energy consumption of newly designed residential buildings. However, the fact, that regulations and designers' efforts are focused on decreasing energy consumption (and consequently carbon dioxide emissions) only at the post-occupancy stage, may lead to a significant increase in the carbon footprint...

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  • Assessing the attractiveness of human face based on machine learning

    Publikacja

    The attractiveness of the face plays an important role in everyday life, especially in the modern world where social media and the Internet surround us. In this study, an attempt to assess the attractiveness of a face by machine learning is shown. Attractiveness is determined by three deep models whose sum of predictions is the final score. Two annotated datasets available in the literature are employed for training and testing...

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  • Open Access w naukach biomedycznych

    Publikacja

    Open Access (OA) Movement to nazwa ruchu społecznego, którego celem jest zminimalizowanie przeszkód w upowszechnianiu wyników badań naukowych, a także bardziej efektywne wykorzystywanie nakładów na naukę. Jego historia sięga lat sześćdziesiątych XX wieku, kiedy pojawiły się pierwsze formy sieci rozległych, ale zasadniczy rozwój nastąpił w latach dziewięćdziesiątych wraz z nadejściem tzw. ery cyfrowej. Pojawiła się wówczas koncepcja...

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  • Monika Klimowicz dr hab.

    Osoby

    I am a political scientist and economist. My professional passion is to plan and effectively implement scientific projects that revolve around the socio-economic aspects of European integration. I have carried out research projects, within national and international research teams, funded by the Polish National Science Centre and the European Commission. The main areas of my studies have been so far innovation in regional development,...

  • Adaptacja kulturowa jako wyzwanie w zespołachmiędzynarodowych

    Publikacja

    Wyzwania dotyczące pracy w międzykulturowym środowisku są najczęściej odnoszone do menedżerów, ze względu na powszechność ich międzynarodowych migracji oraz podejmowanie międzynarodowej współpracy z kooperantami. Rozwój globalnego rynku pracy stymuluje jednak również szeregowych pracowników do poszukiwania pracy w różnych krajach, co sprawia, że wielu z nich pracuje w międzykulturowych zespołach, gdzie doświadczają kulturowego...

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  • Inbound marketing a skuteczna komunikacja marketingowa

    Publikacja

    Celem artykułu jest ukazanie koncepcji inbound marketing jako przykładu nowego podejścia do planowania i realizacji polityki komunikacji marketingowej w Internecie. Współcześnie klienci nie chcą być atakowani nachalną reklamą lub zanudzani przez nieatrakcyjne treści. Odwracają się od marek, które prowadzą z nimi komunikację jedynie przy użyciu tradycyjnych działań komunikacji marketingowej. Znane organizacje wykorzystują do promowania...

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  • High Performance Control of AC Drives with Matlab/ Simulink

    Publikacja

    - Rok 2021

    Explore this indispensable update to a popular graduate text on electric drive techniques and the latest converters used in industry. The Second Edition of High Performance Control of AC Drives with Matlab®/Simulink delivers an updated and thorough overview of topics central to the understanding of AC motor drive systems. The book includes new material on medium voltage drives, covering state-of-the-art technologies and challenges...

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  • Regenarative tourism – between theory and practice

    Publikacja

    - Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska - Rok 2024

    Purpose: The aim of this article is to present a shift in thinking in terms of implementing the systems and practices needed to transition to a regenerative approach in tourism. The article aims to provide concrete ways to change thinking and move towards a regenerative paradigm in the tourism industry. Design/methodology/approach: This viewpoint paper defines regenerative tourism and explores its principles and the possibilities...

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  • Modern Management Challenges of Floating Housing Development

    The aim of the article is to identify factors that determine the development and management models of floating housing development in the analyzed countries. The author indicates factors determining the possibility of settling on bodies of water in Poland, and restrictions connected with this type of development, as well as the need for specialized persons and companies ready to meet the challenges of the modern management of hydro-technical...

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  • Transformation of Energy Markets: Description, Modeling of Functioning Mechanisms and Determining Development Trends

    Publikacja

    One of the key contemporary economic and social issues today is the global energy transition. Energy transition processes are having a significant impact on the development of world economies, increasing their TFP and leading to an increase in their level of innovation through the transfer of myriad new technologies. These processes also contribute to an increase in foreign direct investment and, consequently, an increase in the...

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  • Harmonization and Quality Assurance of Income and Wealth Data: The Case of LIS.

    Publikacja

    - Rok 2023

    Comparability of concepts in survey data harmonization is essential for scientific analyses. LIS – also known as the Luxembourg Income Study or LIS Cross-National Data Center in Luxembourg – acquires and harmonizes income and wealth microdata to provide the scientific community with a comparable database that is unique in the world in its growing temporal and geographic breadth. Over many decades, scholars worldwide have used the...

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  • End-Of-Life Management of Photovoltaic Solar Modules

    Publikacja

    The PV industry continues to push its credentials as a technology that addresses one of the fundamental challenges of our times – climate change. There are however two major concerns about this technology: first, the potential negative environmental impacts of energy used in the production stage and second, the possible shortage of the valuable materials in the future. The currently dominant semiconductor used in photovoltaic modules...

  • Trends in Locally Balanced Energy Systems without the Use of Fossil Fuels: A Review

    Publikacja

    - ENERGIES - Rok 2023

    In recent years, the idea of the operation of energy systems (power systems, heating systems) has changed significantly. This paper is an overview of locally balanced energy systems without the use of fossil fuels. The paper justifies the concept of local energy balancing in a new energy system that does not use fossil fuels (coal, natural gas, and crude oil), based on European Union guidelines and formal documents as well as the...

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  • Creating private and public value in data-related management projects: a cross-border case study from Switzerland and Italy

    Publikacja
    • E. Garbani-Nerini
    • E. Marchiori
    • N. Sabatini
    • L. Cantoni

    - Rok 2024

    The literature in the field of smart cities shows a continuous emphasis and interest in the topic of big data due to the extensive use of Information and Communication Technologies by public and private institutions within each city. There is undoubtedly value in big data: in data lie insights on the city, its stakeholders, citizens, products, and services. Challenges, though, lie in data’s variety, volume, and velocity, but also...

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  • Exploring the landscape of automatic cerebral microbleed detection: A comprehensive review of algorithms, current trends, and future challenges

    Publikacja

    - EXPERT SYSTEMS WITH APPLICATIONS - Rok 2023

    This paper provides the first review to date which gathers, describes, and assesses, to the best of our knowledge, all available publications on automating cerebral microbleed (CMB) detection. It provides insights into the current state of the art and highlights the challenges and opportunities in this topic. By incorporating the best practices identified in this review, we established guidelines for the development of CMB detection...

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  • Emerging strategies for enhancing detection of explosives by artificial olfaction

    Publikacja

    - MICROCHEMICAL JOURNAL - Rok 2021

    Explosives detection systems need to be able to reliably detect a wide range of explosive materials and their vapours. The continued development and improvement of artificial olfaction techniques, including electronic nose (EN), remains important to overcome existing challenges and meet requirements posed by new improvements in the field of explosives. There is an increasingly popular trend aimed at improvement of fundamental metrological...

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  • Tax Evasion, Tax Morale, and Trade Regulations: Company-Level Evidence from Poland

    Objective: To investigate the determinants of the phenomenon of evading taxes among polish entrepreneurs. In particular, I examine such factors as tax administration satisfaction, tax morale, tax burden, and the influence of trade regulations. Research Design & Methods: A survey study conducted in 2017 in Poland among 454 enterprises. I used the zero-inflated negative binomial modelling technique to examine the impact of factors...

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  • Self Portrait with a Mask

    Publikacja

    Paweł SASIN - Self Portrait with a Mask “Every work of art is the child of its time, and, in many cases, the mother of our emotions. “ Wassily Kandynsky, Concerning the Spiritual in Art The two years 2020 and 2021 were marked by the COVID-19 pandemic – a lengthy period of time in which everyone felt in danger of losing one’s health or life. As a result, many people were experiencing negative emotion, becoming subject to psychological...

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  • PROJEKT STANDARDÓW DOSTĘPNOŚCI DLA OSÓB ZE SZCZEGÓLNYMI POTRZEBAMI DO TRANSPORTOWYCH WĘZŁÓW PRZESIADKOWYCH

    W artykule opisano projekt standardów dostępności zintegrowanych węzłów przesiadkowych, które zawierają spójne dla wszystkich elementów ZWP z uwzględnieniem potrzeb i wymagań osób ze szczególnymi potrzebami zasady projektowania, budowy i utrzymania oraz minimalne parametry kluczowych dla samodzielnej realizacji podróży przez osoby ze szczególnymi potrzebami rozwiązań i udogodnień. Przedstawione standardy zawierają zasady i wymagania...

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  • Noise and Rolling Resistance Properties of Various Types of Winter Tyres Compared to Normal Car Tyres

    Publikacja

    - Rok 2016

    To cope with winter weather conditions, potentially including snow and ice, it is common to use winter tyres, or ”all-seasons” tyres assumed to be safe both in summer and winter. In some northern countries, winter tyres are mandatory. Traditionally, it has been assumed that winter tyres are noisier than normal tyres (here called summer tyres) and winter tyres equipped with studs are assumed to be very noisy.This paper presents...

  • UNIVERSITY - COMPANY COOPERATION IN THE CONTEXT OF THE GEODESY AND CARTOGRAPHY DEVELOPMENT

    Publikacja

    This article presents aspects of the cooperation between university and the company, on the example of Polish technical universities, which educate students, in the field of geodesy and cartography (among many others. Nowadays scientific development is one of the most important elements affecting the economy of the country. This involves continuous contact between the two parties, the business community and the scientific societies....

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  • Banking concentration in the Baltic and Western Balkan states — selected issues

    Publikacja

    Research background: In a rapidly changing economic environment companies deepen their cooperation, which entails in all sectors of the economy. The progressive increase in market concentration, especially in the banking sector, is caused by various reasons. Purpose of the article: The purpose of this article is to compare the tendencies within market structures in few countries which origin from similar political systems and...

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  • Lessons learned during SRAD hybrid motor development

    Student Researched and Developed (SRAD) hybrid rocket motor H-15 with total impulse of 15 $kNs$ was built. First version of the engine has average thrust of 3 $kN$, the second, improved one is prepared with an aim to have average thrust of 5 $kN$. Engine development was started from scratch and went through phases of: definition of design assumptions and constraints, numerical modelling to predict engine performance, CAD and CAM...

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