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    Wyświetlanie 1-7 z 7
    Tytuł:
    Analysis of the factors affecting facilities compliance to environmental regulations in Minna – Niger State, Nigeria
    Autorzy:
    Salihu, A. C.
    Nabegu, A. B.
    Abdulkarim, B.
    Mustapha, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1192116.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Knowledge of Environment Regulation
    Environmental compliance Factors
    Environmental Consultation
    Minna
    Nigeria
    Opis:
    This study explores factors affecting facilities’ compliance to environmental regulations. The objectives were to: examine operator’s knowledge of environmental legal requirement of the facility, identify factors affecting environmental compliance and determine relationship between facility and environmental regulators. Systematic random sampling was used in selecting facilities, while purposive random sampling was adopted in selecting respondents from each facility. Simple random sampling was employed in selecting respondents from the regulatory agencies. The instrument for data collection from the respondents is a semi-structured set of questionnaires each for facility and regulators respectively. The questionnaire was administered to one hundred and twenty (120) respondents drawn from eight (8) facilities in different sectoral groups, while one hundred and sixteen (116) were administered to the regulatory agencies (NESREA and NISEPA). Findings shows that challenges militating against compliance to environmental regulations in the area include: the relationship between the regulatory agencies and the facility operators as reported by 22.9% of respondents who upheld that there is fairly relationship between the facility operators and the regulatory agencies. More so, the singled most influential factor is lack of awareness of the regulations (52.5%). Consultation between the environmental regulators and the facility operators prior to the introduction of any environmental regulation is a factor in environmental compliance as reported by 37.6% of the respondents (facility operators) who maintained that they are not consulted before introducing any environmental regulation. It is recommended among others that every facility operator should be considered as a stakeholder in drafting environmental regulations. Exclusion of them is tantamount to low level of compliance as they will claim not to be aware of the regulations. Also, there is need to consistently create environmental awareness among the facility operators and the general public in order to become environment conscious and uphold environmental sustainability.
    Źródło:
    World Scientific News; 2016, 45, 2; 174-184
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Factors responsible for socio-spatial segregation in the housing neighbourhoods of Minna, Nigeria
    Czynniki odpowiedzialne za segregację społeczno-przestrzenną w dzielnicach mieszkaniowych miasta Minna w Nigerii
    Autorzy:
    Dzukogi, Usman Abubakar
    Yusuf Alapata, Ahmed
    Powiązania:
    https://bibliotekanauki.pl/articles/27314906.pdf
    Data publikacji:
    2023
    Wydawca:
    Politechnika Świętokrzyska w Kielcach. Wydawnictwo PŚw
    Tematy:
    segregation
    factors
    urban space
    neighbourhoods
    housing
    segregacja
    czynniki
    przestrzeń miejska
    dzielnica
    mieszkalnictwo
    Opis:
    Segregation in the housing sector has exposed urban dwellers to series of unfavourable conditions in most cities of developing countries, which are as a result several factors. This paper is aimed at examining the factors influencing segregation in the housing neighbourhoods of Minna, Nigeria. Two-stage cluster sampling methods were adopted in the selection of neighbourhoods and households across the entire sample frame in the administration of 374 questionnaires across the 25 clustered neighbourhoods. Chi-square and Relative Importance Index (RII) as well as mean score to determine neighbourhood geographical segregation indicators pattern across all the 25 neighbourhoods in the study area. The study established that there is a significant difference between low, medium, and high density neighbourhoods in terms segregation factors in the study area. It was therefore suggested that a good urban governance structure should be put in place that will discourage class divisions among spatial entities of the city.
    W większości miast krajów rozwijających się segregacja w sektorze mieszkaniowym postawiła mieszkańców miast w obliczu szeregu niekorzystnych warunków, wynikających z kilku czynników. Niniejszy artykuł ma na celu zbadanie czynników wpływających na segregację w dzielnicach mieszkaniowych miasta Minna w Nigerii. Zastosowano dwuetapowe metody próbkowania klastrowego w doborze dzielnic i gospodarstw domowych w całym operacie losowania w celu rozdania 374 kwestionariuszy w 25 klastrach dzielnic. Wykorzystano wskaźnik chi-kwadrat i wskaźnik względnego znaczenia (RII), a także średni wynik w celu określenia wzorca wskaźników segregacji geograficznej we wszystkich 25 dzielnicach na badanym obszarze. Badanie wykazało, że istnieje znacząca różnica między dzielnicami o niskiej, średniej i wysokiej gęstości zaludnienia pod kątem czynników segregacji na badanym obszarze. W związku z tym zasugerowano, że należy wprowadzić dobrą strukturę zarządzania miastem, która zniechęci do podziałów klasowych między jednostkami przestrzennymi miasta.
    Źródło:
    Structure and Environment; 2023, 15, 2; 82--89
    2081-1500
    Pojawia się w:
    Structure and Environment
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    New ways to learn geography – challenges of the 21st century
    Autorzy:
    Markuszewska, Iwona
    Tanskanen, Minna
    Vila Subirós, Josep
    Powiązania:
    https://bibliotekanauki.pl/articles/1051570.pdf
    Data publikacji:
    2019-01-09
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    geography
    landscape
    borderland
    cross-border learning
    learning by doing (LBD)
    Opis:
    The aim of the article is to get a closer overview of the non-instructional methods of the teaching-learning process of geography. To achieve this goal, the results of the international project Borderland: Border Landscapes Across Europe(undertaken in 2012 and 2013, within the framework of LLP-Erasmus Programme) was presented. Special attention was paid on the innovative approach to learning methods, namely learning by doing (LBD) that was experienced in a multinational environment during the project’s implementation.
    Źródło:
    Quaestiones Geographicae; 2018, 37, 1; 37-45
    0137-477X
    2081-6383
    Pojawia się w:
    Quaestiones Geographicae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Efficiency of MgO activated GGBFS and OPC in the stabilization of highly sulfidic mine tailings
    Autorzy:
    Sarkkinen, Minna
    Kujala, Kauko
    Gehör, Seppo
    Powiązania:
    https://bibliotekanauki.pl/articles/1839014.pdf
    Data publikacji:
    2019
    Wydawca:
    Główny Instytut Górnictwa
    Tematy:
    AMD
    stabilization
    tailings
    diffusion
    alkali-activation
    stabilizacja
    odpadki
    dyfuzja
    aktywacja alkaliczna
    Opis:
    MgO activated ground granulated blast furnace slag (GGBFS) is a form of alkali-activated composite, which is successfully used as a binder in the stabilization of highly sulfidic mine tailings. The aim of this study was to compare alkali activated composite (AAC) and ordinary Portland cement (PC) as stabilization agents, as well as their efficiency to stabilize sulfidic tailings and the results of three different diffusion and leaching methods. The Life Cycle Assessment (LCA) method was used to compare the environmental impacts of the binders. The lab-scale program covered hydraulic conductivity, compression strength, and freeze-thaw resistance tests of the stabilized tailings. The results indicate that the hydraulic conductivity (6.08 · 10-9 m/s) and compressive strength (11.5 MPa at 28 days) of AAC were better in comparison, if the corresponding amount of PC (2.04 · 10-8 m/s and 10.3 MPa at 28 days) was used. LCA shows clear ecological benefits when using AAC instead of PC in terms of lower global warming potential. Diffusion and leaching tests indicated better immobilization efficiency of AAC than PC concerning As, Cr, Cu, Ni, Se, Zn, and especially Mo. In comparison with plain tailings, AAC stabilization reduced leaching of As, Cr, Cu, Mo, Ni, Pb, Se, Zn, Cl, and SO4 better than PC.
    Źródło:
    Journal of Sustainable Mining; 2019, 18, 3; 115-126
    2300-1364
    2300-3960
    Pojawia się w:
    Journal of Sustainable Mining
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Researching Children’s Multiple Family Relations: Social Network Maps and Life-Lines as Methods
    Autorzy:
    Pirskanen, Henna
    Jokinen, Kimmo
    Kallinen, Kati
    Harju-Veijola, Minna
    Rautakorpi, Sonja
    Powiązania:
    https://bibliotekanauki.pl/articles/2107028.pdf
    Data publikacji:
    2015-01-31
    Wydawca:
    Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
    Tematy:
    Family Relations
    Children
    Life-Line Method
    Social Network Maps
    Visual Methods
    Sensitive Issues
    Opis:
    Visual methods are reported to have certain advantages when conducting interviews on sensitive topics, such as intimate spaces, home-related ethical issues, and vulnerable families. In this article, we concentrate on two visual methods: social network maps and life-lines. In our research project on children’s well-being and emotional security in multiple family relations, we collected data by interviewing children and asking them to complete social network maps and life-lines. We discuss the suitability of these two visual methods for describing children’s close relationships with their family members and significant others. Combining these two methods during an interview process with children has not very often been tested. It is thus argued that these particular methods help a child to explain his or her family relations and life events. For the researcher interested in studying challenging and complex family relations, they can be extremely useful tools.
    Źródło:
    Qualitative Sociology Review; 2015, 11, 1; 50-69
    1733-8077
    Pojawia się w:
    Qualitative Sociology Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Cryogenic Treatment on Wear Resistance and Microstructure of 42CrMo Steel
    Autorzy:
    Zhang, Haidong
    Yan, Xianguo
    Chen, Zhi
    Zhao, Minna
    Tang, Liang
    Gao, Yuan
    Li, Fan
    Huang, Yao
    Li, Junji
    Powiązania:
    https://bibliotekanauki.pl/articles/2048794.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    cryogenic treatment
    orthogonal design method
    hardness
    coefficient of friction
    wear resistance
    microstructure
    Opis:
    In this work, thermo-mechanically treated 42CrMo steel was subjected to cryogenic treatment conducted by means of orthogonal design method, followed by low-temperature tempering to investigate the effect of different parameters of cryogenic treatment on wear resistance of 42CrMo steel and to optimize parameters of cryogenic treatment for improving wear resistance. The results of hardness test and wear test show that cryogenic treatment significantly improves wear resistance with marginal changes in coefficient of friction and hardness. Specifically, cryogenic temperature has the largest impact on wear resistance of 42CrMo steel, holding time has medium impact, and the parameter of treatment cycles has the least impact. The optimum parameters of cryogenic treatment are -196°C for 12 hours with one cycle for improving wear resistance. The results of scanning electron microscopy (SEM) and X-ray diffractometry (XRD) analysis indicate that marginal changes in hardness and coefficient of friction may be owing to little amount of transformation of retained austenite, and the significant influence of cryogenic treatment on improving wear resistance of 42CrMo steel can be mainly attributed to segregation of carbon atoms promoted by cryogenic treatment resulting in more precipitation of carbides in subsequent tempering.
    Źródło:
    Archives of Metallurgy and Materials; 2022, 67, 1; 127-135
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Boundaries From Borders: Cross-Border Relationships in the Context of the Mental Perception of a Borderline – Experiences from Spanish-French and Polish-German Border Twin Towns
    Autorzy:
    Markuszewska, Iwona
    Tanskanen, Minna
    Subirós, Josep Vila
    Powiązania:
    https://bibliotekanauki.pl/articles/1052686.pdf
    Data publikacji:
    2016-03-15
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    borderline
    twin towns
    neighbourhood
    perception
    cultural identity
    Spanish/Catalan-French borderland
    Polish-German borderland
    Opis:
    In this paper, the borderlands, in the context of the psychological perception of frontiers, were presented. The common relationships between different nationalities living in border twin towns was a principal point of analysis. During the investigation two main research questions were asked: Is a frontier a barrier or a bridge in the common relationships between nationalities living on both sides of the borderline? and Does the trans-border casual social integration stimulate openness to neighbours? The study was conducted in two double towns: la Jonquera (Els límits) - Le Perthus at the Spanish-French border and Słubice - Frankfurt-am-Oder at the Polish-German border. The data were gathered from surveys by questioning locals and visitors during street polling. The design of the questionnaire included three main groups of questions relating to: 1) the perception of the borderline and the role of the border twin towns, 2) the attitude towards neighbours and identification with the borderlands, and 3) the future of the borderline in the context of the twin towns existence and cross-border linkages. The results showed that the historical circumstances and cultural background play a crucial role in the current bilateral interrelations between nations sharing the common space of the twin towns. These two aspects of the borderland have an influence on the psychological perception of the border that creates mental boundaries in local societies. However, as the results proved, the necessity of living together pushed locals to be more open-minded, which as a consequence supported the establishment of social bonds.
    Źródło:
    Quaestiones Geographicae; 2016, 35, 1; 105-119
    0137-477X
    2081-6383
    Pojawia się w:
    Quaestiones Geographicae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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