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Wyświetlanie 1-4 z 4
Tytuł:
Potential and differences of selected fermented non-alcoholic beverages
Autorzy:
Jakubowski, Mariusz
Powiązania:
https://bibliotekanauki.pl/articles/1179688.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Fermentation
alcohol content
fermented beverages
fruit and vegetables
probiotics
water kefir
whey
Opis:
Fermentation has been used by a humans for centuries, basically to extend a shelf life of a product. But these days, fermented food and beverages can provide probiotic bacteria and more bioavailable nutriants to organism. There are numbers of fermented food and beverages, depending on region, culture or production method. The aim of this study was to compare last research concerning fermented, non-alcoholic beverages based on whey, fruit or vegetables.
Źródło:
World Scientific News; 2017, 72; 204-210
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Managerial Determinants in Design Management as a Means of Developing Organisational Resilience in an Uncertain Economic Environment
Autorzy:
Dziadkiewicz, Anna
Jakubowski, Mariusz
Powiązania:
https://bibliotekanauki.pl/articles/16729133.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
design management
BANI
VUCA
Danish Design Ladder
managerial determinants
Opis:
Theoretical background: Design management is of paramount relevance in many modern organisations, increasingly also in those operating in Poland, remaining an independent approach to change management for the creation of new products and services, achieving better productivity and efficiency in a global and competitive environment. Until now, the basis of design management processes has been to understand the needs of the user or customer, their expectations and aspirations. This approach, like many management concepts, is now undergoing a transformation, driven by huge economic, social, political and environmental changes. The uncertainty of tomorrow, facing crises, wars, erupting pandemics are just some of the so-called Black Swans causing the need for management change in organisations. Nowadays, design management is experiencing a boom, which is primarily linked to a shift away from seeing it only on an operational level or as a marketing function to emphasising its strategic importance. In this situation, the concept of “just in time”, familiar from management by quality, should evolve into “just in case” in a much broader reference than that relating to the production, delivery or storage of raw materials and finished goods. The design management model presented in the article is an example of an activity that responds to the needs of companies precisely in conditions of variability, due to the fact that its essence is flexibility and the possibility of redesigning it by adding or subtracting specific constructs, appropriate to the just in case situation. Purpose of the article: This article aims to present how managerial conditions conducive to the implementation of design management activities can support companies in achieving organisational resilience in a world defined by the acronym “BANI”. Research methods: The research problem is to identify managerial determinants conducive to the implementation of design management activities through which companies can achieve organisational resilience. In order to obtain an answer to the research problem so posed, a literature review of design management approaches was conducted, with a presentation of the traditional Danish Design Ladder model and its updated version, adapted to the BANI concept. Based on the literature, the acronyms “VUCA” and “BANI”, used to describe current economic phenomena, were explained. The article then presents some of the results of a survey conducted in 2019–2020, in companies registered in Poland. Quantitative estimation using the CATI method (1,200 medium and large enterprises) and qualitative verification using PAPI and IDI techniques (58 large enterprises with a high level of project maturity and experience in implementing project management) were used. Main findings: The paper presents design management as a type of organisational activity important for achieving organisational resilience. The essence of design management, its two models and the management conditions necessary to implement this approach were described. The role of managers in implementing change in an organisation is characterised. The above considerations are based on a literature review and own research.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska, sectio H – Oeconomia; 2022, 56, 5; 81-99
0459-9586
2449-8513
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska, sectio H – Oeconomia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of 5 Ghz Wi-Fi in Home Wireless Networks
Zastosowanie sieci Wi-Fi o częstotliwości 5 GHz w małych sieciach domowych
Autorzy:
Dolińska, Iwona
Jakubowski, Mariusz
Masiukiewicz, Antoni
Powiązania:
https://bibliotekanauki.pl/articles/439751.pdf
Data publikacji:
2016
Wydawca:
Akademia Finansów i Biznesu Vistula
Tematy:
wireless LAN
IEEE 802.11
interference
lokalna sieć bezprzewodowa
interferencja
Opis:
The family of 802.11 standards introduced by IEEE is undeniably the most popular technology for wireless local area networks (WLANs). 802.11-based products marketed under the Wi-Fi banner are present in many homes, offices and public buildings. Since Wi-Fi networks operate in the unlicensed 2.4 GHz and 5 GHz bands, they are exposed to high level of extraneous RF signals coming both from neighboring Wi-Fi networks and other sources. The problem is especially acute in the most crowded 2.4 GHz band. In offi ce buildings with centralized networks, the problem of interferences might be alleviated by a careful network planning. However, such an approach is typically not applicable to blocks of flats where plenty of independent Wi-Fi networks coexist on a relatively small area. In this paper, the application of 5 GHz Wi-Fi in small home networks is considered as a remedy for the above-mentioned problem. Results of measurements performed in an urban environment suggest that when a router and a mobile station are located at the same floor, the 5 GHz Wi-Fi might become an attractive alternative for its 2.4 GHz counterpart.
Rodzina standardów 802.11, wprowadzonych przez organizację IEEE, stanowi niewątpliwie najpopularniejszą technologię dla lokalnych sieci bezprzewodowych WLAN. Produkty oparte na standardach z rodziny 802.11 i opatrzone logo Wi-Fi są obecne w wielu domach, biurach i budynkach użyteczności publicznej. Sieci Wi-Fi operują w nielicencjonowanych pasmach o częstotliwościach 2.4 i 5 GHz i z tego względu są narażone na wysoki poziom obcych sygnałów radiowych, pochodzących zarówno z sąsiednich sieci Wi-Fi jak i innych źródeł. Zjawisko to jest szczególnie dokuczliwe w intensywnie wykorzystywanym paśmie 2.4 GHz. W budynkach biurowych, z centralnie zarządzanymi sieciami Wi-Fi, problem może zostać złagodzony dzięki starannemu planowaniu sieci. Takie podejście nie jest jednak na ogół możliwe w blokach mieszkalnych, w których na stosunkowo niewielkim obszarze współistnieje wiele niezależnych sieci Wi-Fi. W niniejszym artykule rozważono zastosowanie sieci Wi-Fi pracującej w paśmie 5 GHz w małych sieciach domowych jako potencjalnego sposobu rozwiązania wyżej wspomnianego problemu. Uzyskane wyniki pomiarów przeprowadzonych w środowisku miejskim sugerują, że o ile router i stacja mobilna znajdują się na tym samym piętrze, to częstotliwość 5 GHz może stanowić atrakcyjną alternatywę dla pasma 2.4 GHz.
Źródło:
Kwartalnik Naukowy Uczelni Vistula; 2016, 2(48); 103-114
2084-4689
Pojawia się w:
Kwartalnik Naukowy Uczelni Vistula
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Does body posture during tree felling influence the physiological load of a chainsaw operator?
Autorzy:
Grzywiński, Witold
Jelonek, Tomasz
Tomczak, Arkadiusz
Jakubowski, Marcin
Bembenek, Mariusz
Powiązania:
https://bibliotekanauki.pl/articles/990840.pdf
Data publikacji:
2017
Wydawca:
Instytut Medycyny Wsi
Tematy:
working posture
heart rate
forestry
feller
felling
Opis:
Introduction and Objectives. Holding determined body postures during work is connected with muscles activity. The more forced the posture, the larger the number of muscles taking an active part in holding and stabilizing the work posture. During logging, the greatest share of awkward (forced) working postures occurs in tree felling by chainsaw. Materials and Method. A group of 10 experienced fellers aged 47.5±7.3 (37 – 59-years-old) was studied. Heart rate (HR) was measured during simulation of felling activity in 4 working postures: back bent forward with straight legs (stoop), back bent forward with bent legs (flexed-stoop), squat and kneeling on one knee (half-kneel). Results. The lowest value of HR was noticed for squatting – 114.1 bpm, then for kneeling on one knee – 116.3 bpm. HR during felling in a standing posture with straight legs amounted to 121.5 bpm and for standing with bent legs 125.3 bpm. For all studied postures the differences in average HR values were statistically significant at p<0.01. Conclusions. A working posture during tree felling by chainsaw has influence on the level of physiological workload of an operator. Standing bent forward body postures cause higher heart response than squatting and half-kneeling.
Źródło:
Annals of Agricultural and Environmental Medicine; 2017, 24, 3
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
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