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Wyniki wyszukiwania dla: starburst%20amines

Wyniki wyszukiwania dla: starburst%20amines

  • Application of Nanomaterials for Cadmium Adsorption for Sustainable Treatment of Wastewater: a Review

    Publikacja

    - WATER AIR AND SOIL POLLUTION - Rok 2023

    Many heavy metals, particularly cadmium, are detrimental to both people and the environment when present in large quantities. In wastewater treatment plants, several conventional approaches are employed for cadmium abatement to restore the ecosystem, food supplies, and health of people and animals. Ion exchange, coagulation, membrane filtration, and chemical precipitation are a few examples of ways for removing heavy metals from...

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  • Diamine derivatives of dimerized fatty acids and bio-based polyether polyol as sustainable platforms for the synthesis of non-isocyanate polyurethanes

    Publikacja

    A series of environmentally friendly non-isocyanate polyurethanes (NIPUs) were successfully prepared via the polyaddition reaction of bio-based polyether polyol-based cyclic carbonate with diamine derivative of dimerized fatty acids. The syntheses of NIPUs were realized by the three-step method in the absence of toxic solvents and, importantly, the process of carbonation did not require the use of elevated pressure. The effect...

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  • Curing epoxy resin with anhydride in the presence of halloysite nanotubes: the contradictory effects of filler concentration

    Publikacja
    • M. Jouyandeh
    • Z. Karami
    • O. Moini
    • K. Formela
    • S. Paran
    • A. Jannesari
    • M. Saeb

    - PROGRESS IN ORGANIC COATINGS - Rok 2019

    Epoxy resins can be cured with a wide variety of curing agents such as amines and anhydrides, but anhydride curing would be more favorable for research purpose because of epoxy-anhydride curing taking place slowly at room temperature. Incorporation of natural nanosized minerals into epoxy is of environmental importance. Halloysite nanotubes (HNTs) display chemical properties similar to those of silica and alumina, and hydroxyl...

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  • Recent Advances in Polymer Nanocomposites: Unveiling the Frontier of Shape Memory and Self-Healing Properties—A Comprehensive Review

    Publikacja
    • H. Jamil
    • M. Faizan
    • M. Adeel Ahmad
    • T. Jesionowski
    • G. Boczkaj
    • A. Balčiūnaitė

    - MOLECULES - Rok 2024

    Shape memory and self-healing polymer nanocomposites have attracted considerable attention due to their modifiable properties and promising applications. The incorporation of nanomaterials (polypyrrole, carboxyl methyl cellulose, carbon nanotubes, titania nanotubes, graphene, graphene oxide, mesoporous silica) into these polymers has significantly enhanced their performance, opening up new avenues for diverse applications. The...

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  • The transfer of names in various translations of brothers Grimm’s "Rumpelstilzchen"

    Publikacja
    • P. Golda
    • J. Ryszka
    • O. Karabag
    • B. Messias Leandro
    • J. Zemmour

    - Białostockie Archiwum Językowe - Rok 2022

    Various scholars point out the transfer of proper nouns as a difficulty. This paper examines the transfer of names in twenty‑one translations of the Grimm Brothers’ fairy tale originally titled Rumpelstilzchen. The article analyses English,Brazilian Portuguese, Polish, Turkish, and Japanese editions of this originally German story. The analysis focuses on the true name of a title dwarf and other names provided by the Queen....

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  • Load effect impact on the exploitation of concrete machine foundations used in the gas and oil industry

    Publikacja

    - Rok 2019

    Machine foundations is a critical topic in the gas and oil industry, which design and exploitation require extensive technical knowledge. Machine foundations are the constructions which are intended for mounting on it a specific type of machine. The foundation has to transfer dynamic and static load from machine to the ground. The primary difference between machine foundations and building foundations is that the machine foundations...

  • SHAPING PLACES THROUGH ART. THE ROLE OF CREATIVE PLACEMAKING IN PHILADELPHIA

    Publikacja

    - Rok 2016

    The aim of a paper is to examine the role of creative placemaking in shaping urban environment. Art and artists have a long history of contributing and changing cities. Nowadays art and cultural activities become the revitalization tools, helping to start and sustain the process of change in the areas in crisis. The process of creative placemaking brings art to people and people to art, enhancing creativity in lives to transform...

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  • Hydrochar-nanoparticle integration for arsenic removal from wastewater: Challenges, possible solutions, and future horizon

    Publikacja

    - ENVIRONMENTAL RESEARCH - Rok 2023

    Arsenic (As) contamination poses a significant threat to human health, ecosystems, and agriculture, with levels ranging from 12 to 75% attributed to mine waste and stream sediments. This naturally element is abundant in Earth's crust and gets released into the environment through mining and rock processing, causing ≈363 million people to depend on As-contaminated groundwater. To combat this issue, introducing a sustainable hydrochar...

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  • THE CONCEPT AND THE STATE OF RESEARCH ON THE PERFORMANCE OF FAMILY BUSINESSES

    Publikacja

    Purpose: This study's primary goal is to present the theoretical concept of family enterprises. Specifically, the results of earlier studies and the issues facing this field of research now will be described. The article also examines the underlying impacts that family control has on business management in order to fill the research gap left by earlier studies on the performance differences between family and non-family enterprises....

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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...

  • Effects of beach wrack on the fate of mercury at the land-sea interface – A preliminary study

    Publikacja
    • B. Graca
    • A. Jędruch
    • M. Bełdowska
    • J. Bełdowski
    • L. Kotwicki
    • G. Siedlewicz
    • E. Korejwo
    • W. Popińska
    • K. Łukawska-Matuszewska

    - ENVIRONMENTAL POLLUTION - Rok 2022

    Since the 1970s, the amount of aquatic plants and algae debris, called beach wrack (BW), has increased along the shores of industrialised regions. The strong ability of primary producers to accumulate pollutants can potentially result in their deposition on the beach along with the BW. Despite that, the fate and impact of such pollutants on sandy beach ecosystems have not been investigated so far. This study examines the fate...

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  • Knowledge management driven leadership, culture and innovation success – an integrative model

    Publikacja

    Purpose – This article examines the relation between knowledge management (KM) driven leadership, culture and innovation success of knowledge-intensive small and medium sized companies. By building on the previously reported research on leadership, culture, innovation, and knowledge management, we synergistically integrated KM-driven leadership and innovation success while exploring the meditational role of culture in that. Design/methodology/approach...

  • The Response of Selected Domestic Capital Markets on the Development of COVID-19 Pandemic – a Broader View

    Objective: The study examines how the record of the first, hundredth, thousandth, ten-thousandth, one-hundred-thousandth, and millionth cases of COVID-19 affected investor behaviour in capital markets. It also looks at whether the month in which the first case was recorded in a given market affected the direction and strength of investor reactions. Lastly, it verifies whether the two announcements made by the WHO related to COVID-19...

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  • Non-Isocyanate-Based Waterborne Polyurethanes

    Publikacja

    - Rok 2022

    Non-isocyanate polyurethanes (NIPUs) are a greener alternative for the conventional polyurethanes synthesized using toxic and moisture-sensitive di- or polyisocyanates. The most often described method of NIPU synthesis involves the reaction of five-membered cyclic carbonates with amines, and resulting polymers containing primary and secondary hydroxyl groups (so they are also known as polyhydroxyurethanes), which can be further...

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  • The power of personal brand authenticity and identification: top celebrity players’ contribution to loyalty toward football

    Publikacja

    - Journal of Product & Brand Management - Rok 2020

    Purpose: In the current era of fake news, illusions, manipulations, and other artificial attributes of virtuality and reality, authenticity is a virtue that people highly appreciate. This study examines the influence of the personal brand authenticity of top football players on loyalty to the football discipline in general, via the mediation of personal brand identification. Design: Based on data collected from a convenience sample...

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  • Nowelizacja art. 209 kodeksu karnego. Analiza proponowanych zmian. Analysis of the Proposed Amendments to Article 209 of the Polish Criminal Code.

    Publikacja

    "W niniejszym artykule rozpatrywane jest zagadnienie przestępstwa niealimentacji (zwłaszcza, gdy pokrzywdzonymi są dzieci). Artykuł dotyczy analizy nowelizacji polskiego kodeksu karnego. Przez lata ściągalność roszczeń alimentacyjnych pozostawała na niskim poziomie. Właśnie w celu poprawy skuteczności egzekucji świadczeń alimentacyjnych Ministerstwo Sprawiedliwości przygotowało zmianę w obszarze kodeksu karnego. Nieprawidłowości...

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  • Critical Success Factors for Knowledge Management in SMEs in the KIBS Sector

    Publikacja

    - Rok 2014

    The purpose of this paper is to examine knowledge management practices and critical success factors (CSFs) for their introduction in small and medium-sized enterprises (SMEs) in the knowledge-intensive business services (KIBS) sector. Methodology: The paper is based on the results of an exploratory qualitative survey involving owners and managers of small and medium-sized companies operating in the KIBS sector. In the survey, eight...

  • Knowledge Safety in Small and Medium Sized Service Companies:Case Study Analysis

    Publikacja

    - Rok 2016

    Purpose: This paper aims to explore the topic of knowledge safety, defined as the state of knowledge being safe from loss, attrition, oblivion or theft. The paper first presents a theoretical background and review of previous studies on knowledge loss and retention and then illustrates the topic of knowledge safety with ten case studies from the small and medium-sized enterprises (SMEs) sector. Methodology: The paper is based...

  • Knowledge Safety – Insights from the SME Sector

    Purpose: This paper aims to explore the topic of knowledge safety, defined as the state of knowledge being safe from loss, leakage, attrition, oblivion, waste or theft. The paper first presents a theoretical background and review of previous studies on knowledge loss and ways of overcoming it, and then illustrates the topic of knowledge safety with ten case studies from the small and medium-sized enterprises (SMEs) sector. Methodology:...

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  • Smart Materials in Architecture: Useful Tools with Practical Applications or Fascinating Inventions for Experimental Design?

    For at least several decades smart or so-called intelligent materials, being the result of great advancements in material engineering, appear in architecture in different applications. Most of them are called "smart" because of their inherent properties: a real-time response to environmental stimuli. There are also those considered to be "smart" due to smart design: their original structure or the composition of their materials...

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  • Use of Daylight and Aesthetic Image of Glass Facades in Contemporary Buildings

    Publikacja

    The paper deals with the architecture of contemporary buildings in respect to their aesthetic image created by the use of natural light. Sustainability is regarded as a principle of contemporary architecture, where daylighting is an important factor as it affects energy consumption and environmental quality of the space inside a building. Environmental awareness of architecture, however, involves a much wider and more holistic...

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  • The value of less Light – Sustainable architectural lighting design

    Publikacja
    • K. M. Zielińska-Dąbkowska

    - Rok 2013

    Since its beginning, the art of external illumination has substantially influ-enced the creation and the perception of architecture and the night-time urban environment. In her lecture, the author examines and defines the significant interdisciplinary conditions related to architectural lighting design that have evolved over the years, starting from the first simple exterior lighting projects to the more modern, complex concepts...

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  • Journey towards light – evolutionary adaptations of humans, flora and fauna. Guidelines for safe and healthy illumination

    Publikacja
    • K. M. Zielińska-Dąbkowska

    - Rok 2014

    The paper examines using relatively recent discoveries on how evolution has embedded within all living organisms a natural sensitivity towards their native environment, in particular luminance levels and specific wavelengths of light. The studies conducted so far indicate that lighting installations that are visible after dark impact on humans, flora and fauna and influence our evolutionary dispositions, possibly with negative...

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  • Suspended-sediment transport related to ice-cover conditions during cold and warm winters, Toudaoguai stretch of the Yellow River, Inner Mongolia, China

    Publikacja

    - ECOLOGICAL INDICATORS - Rok 2023

    The presence of winter ice in cold regions changes the water level, flow rate, velocity distribution, and other parameters of the river, which in turn affects the sediment concentration and channel evolution. Based on data obtained from Toudaoguai Hydrological Station from 1959 to 2021, this study examines the characteristics of the ice regime during cold and warm winters and the water and sediment transport processes along the...

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  • Architektura i woda - przekraczanie granic

    Publikacja

    - Rok 2013

    Publikacja daje wgląd w procesy kształtowania połączeń wody i form zbudowanych. W obserwowanych współcześnie eksperymentach struktury budynków przeplatają się z zarysami pól wodnych, powstają konstrukcje architektoniczne unoszące się na różnego rodzaju platformach pływających. Woda jest także coraz częściej włączana w projekty urbanistyczne. Linie styku pomiędzy lądem i wodą ulegają modyfikacjom, przywraca się dawne kanały i tworzy...

  • 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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  • Searching for innovation knowledge: insight into KIBS companies

    Publikacja

    - Rok 2015

    Purpose – The paper analyzes the patterns of research of “innovation knowledge” (i.e. knowledge that can result in introducing innovations in the company that can be observed in KIBS (Knowledge-Intensive Business Services) companies. Particularly, it identifies and classifies the possible approaches adopted by companies on the basis of two dimensions: the intensity/proactivity of search efforts, and the source primarily used. Design/methodology/approach...

  • Knowledge management and factors influencing its implementation in small KIBS firms – evidence from Poland

    Publikacja

    - Rok 2020

    Purpose – Even if the notion of knowledge management (KM) has been introduced more than three decades ago, the application of this concept in the context of small firms has still not been sufficiently explored. The relatively few contributions, however, agree on the fact that small companies do not manage knowledge the same way as their larger counterparts. In order to fill this gap, the present paper aims to the investigate the...

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  • Probing the Magnetic Anisotropy of Co(II) Complexes Featuring Redox-Active Ligands

    Publikacja
    • P. Kumar
    • D. J. SantaLucia
    • K. Kaniewska-Laskowska
    • S. V. Lindeman
    • A. Ozarowski
    • J. Krzystek
    • M. Ozerov
    • J. Telser
    • J. F. Berry
    • A. T. Fiedler

    - INORGANIC CHEMISTRY - Rok 2020

    Coordination complexes that possess large magnetic anisotropy (otherwise known as zero-field splitting, ZFS) have possible applications in the field of magnetic materials, including single molecule magnets (SMMs). Previous studies have explored the role of coordination number and geometry in controlling the magnetic anisotropy and SMM behavior of high-spin (S = 3/2) Co(II) complexes. Building upon these efforts, the present work...

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  • Skills Mismatch in the Context of Technological Change

    Publikacja

    - Rok 2022

    This dissertation examines the impact of technological change (TC) on skills and competences and how higher education’s role has changed along the way. Quantitative research was conducted to reveal the perceptions of students and employers in Poland on the relevance of particular skills in an ICT based economy. The results of this research show that there is generally a rather insignificant discrepancy in these perceptions....