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Tytuł:
The Evolution of Compost Phytotoxicity during Municipal Waste and Poultry Manure Composting
Autorzy:
Aylaj, Mina
Adani, Fabrizio
Powiązania:
https://bibliotekanauki.pl/articles/24202894.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
composting
seed germination
root length
phytotoxicity
Beta vulgaris L.
Solanum lycopersicon L.
Opis:
Composting is commonly used for waste management and the evaluation of its quality is important for successful application. Seed germination test is commonly adopted due to its capacity to examine the toxicity level of compost. The seed test is usually evaluated on the final product and the results can vary with the different methods and the type of seed utilized. In this study, the evolution of seed germination tests during the composting process of municipal waste (MSW) mixed with poultry manure (PM) of two species tomato and sugar beet was examined. The impact of compost water extracts on seed germination and plant primary root growth for each sampling was reported. The chemical parametrs were evaluated on the final product. Results show that mixture C1 with a higher amount of municipal waste gave less compost yield than mixture C2. After 35 days of composting, the compost was phytotoxic for tomato and sugar beet seeds. The seeds of the two cultures reacted differently to the same compost. The compost could stimulate sugar beet germination at days 110, 140, 180, 212 and 252. Seed germination of sugar beet was increased and delayed by one day by the compost stabilized and mature as compared with the control.
Źródło:
Journal of Ecological Engineering; 2023, 24, 6; 281--293
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Exploring Proximities in Coworking Spaces: Evidence from Italy
Autorzy:
Mariotti, Ilaria
Akhavan, Mina
Powiązania:
https://bibliotekanauki.pl/articles/1019598.pdf
Data publikacji:
2020-06-30
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
coworking space
coworker
proximity measures
Italy
Opis:
Since the mid-2000s, the rising phenomenon of coworking spaces (CSs) has provided a flexible and mainly affordable solution for freelancers, entrepreneurs, small firms and start-ups, which may had experienced the issues of isolation when working from home, to work in a shared workplace, interact, socialize and share knowledge. This article explores the phenomenon of CSs within the theoretical framework of proximity measures a là Boschma (2005) – cognitive, organisational, social and institutional – that underpin the aspects of innovation, interaction and knowledge exchange. Though some studies on CSs have indirectly studied the different aspects of proximity, only a few of them focused on the importance of proximity measures at the workspace. With the aim to fill the gap in the literature, an empirical study was applied to Italy with 549 active CSs in 2018. The data was collected through an on-line questionnaire, addressed to a sample of 326 coworkers, focusing mainly on the set of questions devoted to understanding whether coworkers have exploited the proximity typologies in their CSs, have experienced increases in their revenues and well-being. The results are critically discussed, and some insights on policy implications are proposed.
Źródło:
European Spatial Research and Policy; 2020, 27, 1; 37-52
1231-1952
1896-1525
Pojawia się w:
European Spatial Research and Policy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Two-Dimensional Drone Base Station Placement in Cellular Networks Using MINLP Model
Autorzy:
Taghavi, Mina
Abouei, Jamshid
Powiązania:
https://bibliotekanauki.pl/articles/227091.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
5G cellular networks
drone base stations
mobile base stations
node placement
Opis:
Utilization of drones is going to become predominated in cellular networks as aerial base stations in order to temporary cover areas where stationary base stations cannot serve the users. Detecting optimal location and efficient number of drone-Base Stations (DBSs) are the targets we tackle in this paper. Toward this goal, we first model the problem using mixed integer non-linear programming. The output of the proposed method is the number and the optimal location of DBSs in a two-dimension area, and the object is to maximize the number of covered users. In the second step, since the proposed method is not solvable using conventional methods, we use a proposed method to solve the optimization problem. Simulation results illustrate that the proposed method has achieved its goals.
Źródło:
International Journal of Electronics and Telecommunications; 2019, 65, 4; 701-706
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effects of the COVID-19 Pandemic on Trust in the European Union
Wpływ pandemii COVID-19 na zaufanie do Unii Europejskiej
Autorzy:
Pastarmadzhieva, Daniela
Angelova, Mina
Powiązania:
https://bibliotekanauki.pl/articles/2007263.pdf
Data publikacji:
2021-12-15
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
trust
pandemic
European Union
zaufanie
pandemia
Unia Europejska
Opis:
At the beginning of 2020, the world faced a new and unexpected challenge. Such a harmful situation has a potential to increase tensions in societies and create citizens’ distrust in their own governments and the European Union. In relation to these observations, the main hypothesis assumes that citizens’ trust in the Union decreased during the pandemic, compared to previous periods. Thus, the aim of the study is to identify the dynamics of trust in the EU in the member states. The research’s object is the citizens of the EU member states and the focus on dynamics in the levels of trust in 2016–2020, measured based on selected indicators. The data for analysis comes from the Eurobarometer. Statistical methods (frequencies and cross tables) and comparative approach are used for the analysis. On the macrolevel, it seemed that European leaders could do better, especially in the initial stages of the COVID-19 pandemic. However, the results of the Eurobarometer survey performed in the summer of 2020 show that average trust in the Union did not decreased. Тhe data shows that there is a variety across the countries, which was not presented in the current study. Thus, a further examination focused on the context in each of the countries is required, namely policies and measures stringency.
Na początku 2020 roku świat zetknął się z nowym i niespodziewanym wyzwaniem. Tak niesprzyjająca sytuacja ma potencjał zwiększenia napięć wśród społeczeństw i budowania sytuacji braku zaufania obywateli wobec własnych rządów i Unii Europejskiej. W odniesieniu do tych obserwacji główna hipoteza badawcza to założenie, że podczas pandemii zmniejszyło się zaufanie obywateli wobec państw członkowskich Unii Europejskiej w stosunku do lat poprzednich. W związku z tym celem badania jest identyfikacja dynamiki zmiany zaufania wobec Unii Europejskiej wśród jej państw członkowskich. Przedmiotem badania są obywatele Unii Europejskiej oraz skupienie na dynamice poziomu zaufania w latach 2016–2020 badane na podstawie wybranych wskaźników. Wykorzystane dane pochodzą z systemu Eurobarometr. Na potrzeby analizy posłużono się metodą analizy statystycznej (częstości i tablic krzyżowych) oraz porównawczej. Wydaje się, że na makropoziomie decydenci europejscy mogli sobie poradzić lepiej, zwłaszcza na wstępnych etapach wybuchu pandemii COVID-19. Wyniki ankiety przeprowadzonej przez Eurobarometr latem 2020 roku pokazują, że sytuacja różni się między państwami, czego jednak nie zaprezentowano w niniejszym badaniu. Z tego powodu potrzeba dalszych analiz skupionych na kontekście każdego państwa, tj. polityk szczegółowych i poziomu restrykcyjności wykorzystanych środków.
Źródło:
Środkowoeuropejskie Studia Polityczne; 2021, 4; 19-30
1731-7517
Pojawia się w:
Środkowoeuropejskie Studia Polityczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metody arkhitekturno-stroitel'nykh reshenijj teplovaja effektivnost' zdanijj
Methods of architectural and construction solutions and thermal effectiveness of buildings
Autorzy:
Kulikov, G.
Kaz'mina, A.
Powiązania:
https://bibliotekanauki.pl/articles/77512.pdf
Data publikacji:
2014
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
thermal effectiveness
solar energy
climatic factor
building parameter
microclimate
thermal power
thermal balance
Źródło:
Motrol. Motoryzacja i Energetyka Rolnictwa; 2014, 16, 5
1730-8658
Pojawia się w:
Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Second-Language Learners from Collectivistic Societies own Self-Efficacy Effects on Performance and Self Perception of Career Success.
Autorzy:
Parra, Carlos
Geriguis-Mina, Nanci
Powiązania:
https://bibliotekanauki.pl/articles/1968642.pdf
Data publikacji:
2021-07-01
Wydawca:
Academicus. International Scientific Journal publishing house
Tematy:
second-language learners
collectivistic societies
self-efficacy
self-perception
language acquisition
career success
performance
Opis:
In reference to cultural patterns in collectivistic societies, teaching and learning are greatly influenced by the teachers’ collectivistic or individualistic cultural orientation (Kaur & Noman, 2015). However, in dealing with both audiences and their teaching platforms, a chasm appears between methodologies and their applications since collectivistic societies are reluctant to accept methodologies perceived as mere Western innovations. In other words, a seemingly pedagogical incongruence arises where direct individualistic Western influence is perceived as unsuitable to a collectivistic mindset. One must keep in mind that family members in collectivist societies, who view themselves as part of a group rather than independent individuals, seem to feel more interdependent and mutually responsible for each other. In addition to Vygotski’s assertion that children’s cognitive development is enriched through social interaction with more skilled individuals (1978), Bandura (1982) emphasizes that the degree to which learners believe in their own self-efficacy influences their functioning cognitively, motivationally, emotionally, and their decision making process. Also, self-efficacy is perceived to accelerate the process of adapting to a new environment while learners adopt new cultural practices and consent to norms and expectations. In our exploration, second-language learners (SLLs) from collectivistic societies advance academically—English as a second language included—within the frame of sociocultural theory, since they seem to be motivated by their culturally- induced sense of obligation to honor their parents and other group members. These SLLs are positively influenced by their prior experiences with the group’s perceptions and expectations of their capability to learn an additional language (Bandura & Schunk, 1981; Schunk, 1991). Our research seems to indicate that this outcome is significantly affected by the self-efficacy and self-reliance produced by prior successes in challenging tasks that may have been mandated by the SLL’s elders. In addition, SLLs also seem to succeed in accomplishing more challenging goals as they observe their families’ values and traditions even when they are in a society that enforces individualistic values.
Źródło:
Academicus International Scientific Journal; 2021, 12, 24; 130-158
2079-3715
2309-1088
Pojawia się w:
Academicus International Scientific Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Noise level measurement and analysis in a manufacturing enterprise
Autorzy:
Wojtyto, Dorota
Michalik, Joanna
Angelova, Mina
Powiązania:
https://bibliotekanauki.pl/articles/1831303.pdf
Data publikacji:
2021
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
noise
work environment factors
work safety
occupational risk
hałas
czynniki środowiska pracy
bezpieczeństwo pracy
ryzyko zawodowe
Opis:
Noise is one of the most common physical factors causing nuisance and harmful to worker health in the long term. The focus of the research was the measurement and analysis of the noise level at the screw injection moulding machine operation station intended for plastic elements’ manufacturing. The occupational risk evaluation was conducted based on the observed data. The results of the study allowed for the development of precautionary and preventive measures. Furthermore, the paper features identification of the work environment factors occurring in the studied manufacturing enterprise with division to dangerous, harmful, and bothersome.
Źródło:
System Safety : Human - Technical Facility - Environment; 2021, 3, 1; 192-200
2657-5450
Pojawia się w:
System Safety : Human - Technical Facility - Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A “CORDIALIDADE” DO POVO BRASILEIRO FRENTE À IMIGRAÇÃO DE VENEZUELANOS EM RORAIMA: UMA DISCUSSÃO SOBRE A XENOFOBIA
The “Cordiality” of the Brazilian People Towards the Migration of Venezuelans in Roraima: A Discussion on Xenofobia
Autorzy:
VIDAL MINA, Renan
TENÓRIO LIMA, José Rodolfo
Powiązania:
https://bibliotekanauki.pl/articles/485864.pdf
Data publikacji:
2018-12-31
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
xenofobia
Venezuelanos
Roraima
Brasileiros
cordialidade
Xenophobia
Venezuelans
Brazilians
cordiality
Opis:
Um dos principais reflexos da chegada de milhares de venezuelanos em Roraima é a emergência das ações xenófobas por parte dos brasileiros que aí residem. Tal contexto tem colocado em che-que, uma vez mais, a ideia de cordialidade do povo brasileiro. Recorrendo às falas de alguns ato-res brasileiros divulgadas em portais de notícias vinculados a Roraima, às publicações dos sujei-tos em perfis específicos do Facebook e ainda utilizando como alicerce metodológico a teoria simmeliana acerca da forma e conteúdo, buscamos extrair os pressupostos que estão envoltos na materialização da xenofobia frente aos venezuelanos. O objetivo foi tentar entender o que está se passando em Roraima, categorizando as ações xenófobas entre o “menos extremo” e o “mais ex-tremo”, e identificando os pressupostos (a priori) que estão balizando a construção da xenofobia enquanto configuração social. Notamos que a xenofobia tem se apresentado como fruto de um conjunto de pressupostos específicos manifestados por alguns brasileiros, que passam a culpabi-lizar os venezuelanos pelo aumento da violência, criminalidade, etc. Percebemos também que a xenofobia materializa-se em dimensões que vão desde a violência simbólica (xingamentos, por exemplo) até ações mais extremas, isto é, a violência física contra os imigrantes (atentados e homicídios).
One of the main reflections on the arrival of thousands of Venezuelans in Roraima is the emergence of xenophobic actions by the Brazilians who live there. This context has once again chal-lenged the idea of Brazilian people’s cordiality. Using speeches by some Brazilian actors publis-hed in news outlets linked to Roraima, posts on specific Facebook profiles on the subject and utilizing Simmelian theory about form and content as a methodological foundation, we seek to ex-pose the assumptions that are involved in the materialization of xenophobia against Venezue-lans. The objective was to try to understand what is happening in Roraima, categorize xenopho-bic actions as "less extreme" and "more extreme", and identify the (a priori) assumptions that are marking the construction of xenophobia as a social configuration. We note that xenophobia has come as a result of a set of specific assumptions manifested by some Brazilians, who are blaming Venezuelans for the increase in violence, crime, etc. We also realize that xenophobia materiali-zes in dimensions that range from symbolic violence (e.g. name-calling) to more extreme ac-tions, that is, physical violence against immigrants (attacks and homicides).
Źródło:
Revista del CESLA. International Latin American Studies Review; 2018, 22; 327-346
1641-4713
Pojawia się w:
Revista del CESLA. International Latin American Studies Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zadachi, opredeljayushhie harakter rekonstrukcii zhilishha
Problems reconstruction of dwelling defining character
Autorzy:
Kulikov, G.
Kaz'mina, A.
Kondrat'eva, N.
Powiązania:
https://bibliotekanauki.pl/articles/77517.pdf
Data publikacji:
2012
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Opis:
Prior to the beginning of definition of character of reconstruction of buildings working out of applied techniques and their address decision.
Źródło:
Motrol. Motoryzacja i Energetyka Rolnictwa; 2012, 14, 1
1730-8658
Pojawia się w:
Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An investigation into extraverts’ and introverts’ speaking anxiety in English classes
Autorzy:
Hamedi, Seyyedeh Maryam
Akbari, Omid
Hamedi, Seyyedeh Mina
Powiązania:
https://bibliotekanauki.pl/articles/2011747.pdf
Data publikacji:
2015-09-30
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
extraversion
public speaking anxiety
speech fluency
speech accuracy
Opis:
The presented study aimed at investigating the relationship between the extraversion level and speaking anxiety in the English as a Foreign Language (EFL) context on the one hand, and testifying the relationship between the extraversion degree and speech fluency and speech accuracy, on the other hand. To this end, 60 advanced university students, including 12 males and 48 females, participated in the study at the quantitative phase, and 28 of them, including 14 from the extraversion levels, and 14 from the introversion levels, were observed on their oral performance at the qualitative phase. Based on Spearman’s Rank Order Correlation using SPSS in the quantitative section, the findings revealed a strong negative correlation between the extraversion level and public speaking anxiety, on the one hand, and a strong positive correlation between the extraversion degree and speech fluency in the qualitative phase, on the other hand. Speech accuracy revealed having no significant correlation with the extraversion degree. Indeed, extraversion and introversion seem to be the major personality differences that have attracted the attention of psycholinguists, in particular Dornyei (2005); henceforth, it would be worth clarifying the underlying characteristics of this construct to gain a more comprehensive view of these personality type indicators, respectively.
Źródło:
The New Educational Review; 2015, 41; 146-157
1732-6729
Pojawia się w:
The New Educational Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification of risk: an empirical evidence
Autorzy:
Wojtyto, Dorota
Michalik, Joanna
Pałęga, Michał
Angelova, Mina
Powiązania:
https://bibliotekanauki.pl/articles/1831300.pdf
Data publikacji:
2021
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
organisation context
threats
risk management
risk identification
risk analysis
risk assessment
control mechanisms
kontekst organizacji
zagrożenia
zarządzanie ryzykiem
identyfikacja ryzyka
analiza ryzyka
ocena ryzyka
mechanizmy kontrolne
Opis:
The focus of the paper is to identify risks in various areas of operation of a selected trade and production company. The risks primarily referred to threats that had direct or indirect impact on the functioning of the organisation, thence the causes of their occurrence and effects are determined. Identification of individual risks is made based on analyses of internal and external context of the enterprise. In this study, over thirty key risks were identified, in the operational and strategic area, which is related to the taking of immediate action. The final stage of the paper includes preparation of control mechanisms allowing for minimisation or elimination of the discovered risks.
Źródło:
System Safety : Human - Technical Facility - Environment; 2021, 3, 1; 179-191
2657-5450
Pojawia się w:
System Safety : Human - Technical Facility - Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The study of correlation between forward head posture and neck pain in Iranian office workers
Autorzy:
Nejati, Parisa
Lotfian, Sara
Moezy, Azar
Nejati, Mina
Powiązania:
https://bibliotekanauki.pl/articles/2177383.pdf
Data publikacji:
2015-03-12
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
neck pain
craniovertebral angle
forward head posture
high thoracic angle
office employee
Opis:
Introduction Factors such as prolonged sitting at work or improper posture of head during work may have a great role in neck pain occurrence among office employees, particularly among those who work with computers. Although some studies claim a significant difference in head posture between patients and pain-free participants, in literature the forward head posture (FHP) has not always been associated with neck pain. Since head, cervical and thoracic postures and their relation with neck pain has not been studied in Iranian office employees, the purpose of this study was to investigate the relationship between some work-related and individual factors, such as poor posture, with neck pain in the office employees. Material and methods It was a cross-sectional correlation study carried out to explore the relationship between neck pain and sagittal postures of cervical and thoracic spine among office employees in forward looking position and also in a working position. Forty-six subjects without neck pain and 55 with neck pain were examined using a photographic method. Thoracic and cervical postures were measured using the high thoracic (HT) and craniovertebral (CV) angles, respectively. Results High thoracic and CV angles were positively correlated with the presence of neck pain only in working position (p < 0.05). In forward looking position, there was no statistically significant difference between the 2 groups (p > 0.05). Conclusions Our findings have revealed that office employees had a defective posture while working and that the improper posture was more severe in the office employees who suffered from the neck pain.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2015, 28, 2; 295-303
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Local-level challenges to implementing health education programs in rural settings: a qualitative study
Autorzy:
Hamidzadeh, Yousef
Hashemiparast, Mina
Hassankhani,, Hadi
Allahverdipour, Hamid
Powiązania:
https://bibliotekanauki.pl/articles/552289.pdf
Data publikacji:
2019
Wydawca:
Stowarzyszenie Przyjaciół Medycyny Rodzinnej i Lekarzy Rodzinnych
Tematy:
health education
primary health care
programs
rural health
rural population.
Opis:
Background. Health education is one of the main cores of primary health care (PHC). However, there is limited evidence on the difficulties of implementing health education programs. This study explored the barriers of implementing health education programs in Iranian rural communities. Objectives. A qualitative study with conventional content analysis approach was conducted. Applying purposeful sampling, 34 rural folks and health care providers were employed to participate in the study. Data were collected through individually, semi-structured interviews. Data analysis continued until data saturation, when no new theme or idea emerged. Material and methods. A qualitative study with conventional content analysis approach was conducted. Applying purposeful sampling, 34 rural folks and health care providers were employed to participate in the study. Data were collected through individually, semi- -structured interviews. Data analysis continued until data saturation, when no new theme or idea emerged. Results. Four themes, including “Ineffective teaching and learning processes”, “Lack of health educators’ motivation”, “Communication gaps”, and “Lack of resources and facilities for teaching and learning” emerged as the barriers of implementing health education programs in rural communities. Conclusions. Several executive and communicational problems were identified as the local-level obstacles of implementing health education programs in rural areas. Better understanding on the extensive range of health education barriers in rural areas may be helpful for rural health workers and stakeholders in designing and/or revisiting health education programs in rural communities.
Źródło:
Family Medicine & Primary Care Review; 2019, 1; 30-34
1734-3402
Pojawia się w:
Family Medicine & Primary Care Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study of Drought Effects on Three Medicinal and Aromatic Plants Using Field Spectroscopy
Autorzy:
El Azizi, Sarah
Amharref, Mina
Bernoussi, Abdes-Samed
Powiązania:
https://bibliotekanauki.pl/articles/2202302.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
field spectroscopy
medicinal and aromatic plants
drought
resistance
Opis:
Water deficit is one of the major environmental issues affecting biodiversity. Drought-related works are conducted to explore the mechanisms involved in drought vulnerability or resistance and to adopt the most advantageous tool to monitor these changes. Field spectroscopy, an accessory tool of remote sensing, evaluates the reflectance to collect continuous spectrum from materials. In the conducted study, the potential of using UV-Near infrared (NIR) spectroscopy as a non-destructive and reliable approach in monitoring of drought effects on three Medicinal and Aromatic Plants species (MAPs): Lavandula stoechas, Cistus laurifolius and Pistacia lentiscus from Northern Morocco during dry (July 2021) and wet (March 2022) period was addressed. It was found that Lavandula stoechas species is more impacted by water deficit than Cistus laurifolius and Pistacia lentiscus. Indeed, this species has a lower reflectance in Visible and NIR regions of the spectrum after a period of drought and therefore a higher vulnerability to water deficit than the other two species.
Źródło:
Journal of Ecological Engineering; 2022, 23, 12; 155--162
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Assessment of Factors That Influence Outcome Following Fixation of Periprosthetic Distal Femur Fractures Associated with Total Knee Arthroplasty
Autorzy:
Fakoya, Keji
Sedarous, Ramy
Seifo, Mina
Okoro, Tosan
Powiązania:
https://bibliotekanauki.pl/articles/28409185.pdf
Data publikacji:
2022-07-01
Wydawca:
Fundacja Edukacji Medycznej, Promocji Zdrowia, Sztuki i Kultury Ars Medica
Tematy:
periprosthetic fractures
distal femur
total knee arthroplasty
functional outcome
Opis:
Background. Periprosthetic distal femur fractures following total knee arthroplasty (PDFFTKA) are increasingly common [1], mainly in elderly patients with significant co-morbidities [2]. Surgical management usually requires balancing prompt fixation for early mobilization with the need to consider the least physiologically demanding option [3].The aim of this study was to assess predictors of clinical and radiological outcome in patients with PDFFTKA treated with open reduction and internal fixation (ORIF). Materials and methods. A retrospective cohort study of patients managed for PDFFTKA over the last 21 years in the Trauma & Orthopaedics Department of the Royal Shrewsbury Hospital (RSH) was carried out. Radiological images, pre- and post-operatively, were assessed for fracture related parameters. Last known functional status was evaluated using the most recent outpatient review letters. After assessment of normality of data, evaluation of predictors of clinical and radiological outcome was made using correlation analyses. Results. There was no statistically significant correlation between age, primary TKA to fracture interval, and length of intact medial cortex vs clinical outcome for the parametric variables evaluated. For non-parametric variables assessed, there was a statistically significant correlation between clinical outcome and evidence of callus formation (Spearman rho value -0.476; p=0.022). In stratifying the patients with ‘poor’ and ‘good’ outcome, there was no difference noted in primary TKA to fracture interval, or length of intact medial cortex (mm) between both groups. In terms of the number of comminuted fragments and anterior flange to fracture distance (mm), there was also no difference noted between the ‘poor’ and ‘good’ functional groups. Conclusions. 1. There was no observed correlation in pre-operative patient and fracture related variables with outcome in this population of patients with PDFFTKA. 2. Post-operative evidence of callus formation appears to be directly related to better clinical outcomes.
Źródło:
Ortopedia Traumatologia Rehabilitacja; 2022, 24(3); 193-199
1509-3492
2084-4336
Pojawia się w:
Ortopedia Traumatologia Rehabilitacja
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new index for damage identification in beam structures based on modal parameters
Autorzy:
Taghipour, Reza
Nashta, Mina Roodgar
Bozorgnasab, Moshen
Mirgolbabaei, Hessam
Powiązania:
https://bibliotekanauki.pl/articles/1845026.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
damage detection
beam
modal parameters
mechanical failure
cracks
finite element model
wykrywanie uszkodzeń
belka
parametry modalne
uszkodzenie mechaniczne
pęknięcia
model elementów skończonych
Opis:
The structural damages can lead to structural failure if they are not identified at early stages. Different methods for detecting and locating the damages in structures have been always appealing to designers in the field. Due to direct relation between the stiffness, natural frequency, and mode shapes in the structure, the modal parameters could be used for the purpose of detecting and locating the damages in structures. In the current study, a new damage indicator named “DLI” is proposed, using the mode shapes and their derivatives. A finite element model of a beam is used, and the numerical model is validated against experimental data. The proposed index is investigated for two beams with different support conditions and the results are compared with those of two well-known indices – MSEBI and CDF. To show the capability and accuracy of the proposed index, the damages with low severity at various locations of the structures containing the elements near the supports were investigated. The results under noisy conditions are investigated by considering 3% and 5% noise on modal data. The results show a high level of accuracy of the proposed index for identifying the location of the damaged elements in beams.
Źródło:
Archive of Mechanical Engineering; 2021, LXVIII, 4; 375-394
0004-0738
Pojawia się w:
Archive of Mechanical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
How transit improvements are perceived by passengers? Results of a before-after customer satisfaction survey
Autorzy:
Sahraei, Mina
Mesbah, Mohamed
Habibian, Meeghat
Saeidi, Tara
Soltanpour, Amirali
Powiązania:
https://bibliotekanauki.pl/articles/27311783.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
improvements of transports
passengers' satisfaction
structural equation modelling
importance-performance analysis
usprawnienia transportu
zadowolenie pasażerów
modelowanie równań strukturalnych
analiza ważności
Opis:
Although customer satisfaction surveys are widely utilized by transit agencies, there are limited analyses in the literature on the perception of passengers as a result of service improvements. A before-after study can help to evaluate the effect of changes from customer’s points of view and thus guarantee a continuous improvement in the service. In this paper, customer satisfaction was directly observed through a Customer Satisfaction Survey (CSS) before and after certain changes. Furthermore, Structural Equation Modeling (SEM) is utilized to evaluate passenger’s perception of the service attribute importance. Finally, an Importance-Performance Analysis (IPA) is adapted to analyze the changes in satisfaction and importance from the passenger’s perspective on each service attribute. In both before and after cases, a consistent SEM structure is used. The follow-up IPA provides transit agencies with priorities to improve service attributes and helps managers to devote their resources to key attributes that matter to the riders. Metro line 3 in Tehran was selected as the case study which is 33.7 km long with 25 stations. Two surveys were performed one before (with the sample size of 300), and one after (with the sample size of 384) a set of changes the most important of which was a headway reduction. The SEM was developed with five latent variables of main service, comfort, information, protection, and physical appearance. This structure was assessed on both the before and after data collections and showed to be valid. Security at the station and security on board were the most important service attributes in both waves according to their factor loadings, while ethics and behavioral messages had the smallest factor loading and the least importance. Comparing the attributes in both surveys suggested that reducing the headway was effective, although it did not seem to be sufficient for enhancing the overall customer satisfaction and improvements need to be continued.
Źródło:
Archives of Transport; 2023, 65, 1; 56--66
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The investigation of the incidence rate of bradycardia caused by nasopharynx irritation and its related factors in adenoidectomy surgery
Autorzy:
Saki, Nader
Ebadi, Ahmad
Behbahani, Shahram
Nikakhlagh, Soheila
Akbarpour, Mina
Powiązania:
https://bibliotekanauki.pl/articles/552412.pdf
Data publikacji:
2018
Wydawca:
Stowarzyszenie Przyjaciół Medycyny Rodzinnej i Lekarzy Rodzinnych
Tematy:
adenoidectomy
anesthesia
bradycardia
atropine
child.
Źródło:
Family Medicine & Primary Care Review; 2018, 2; 167-170
1734-3402
Pojawia się w:
Family Medicine & Primary Care Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Domination Number, Independent Domination Number and 2-Independence Number in Trees
Autorzy:
Dehgardi, Nasrin
Sheikholeslami, Seyed Mahmoud
Valinavaz, Mina
Aram, Hamideh
Volkmann, Lutz
Powiązania:
https://bibliotekanauki.pl/articles/32083746.pdf
Data publikacji:
2021-02-01
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
2-independence number
domination number
independent domination number
Opis:
For a graph $G$, let $\gamma(G)$ be the domination number, $i(G)$ be the independent domination number and $\beta_2(G)$ be the 2-independence number. In this paper, we prove that for any tree $T$ of order $n ≥ 2, 4\beta_2(T) − 3\gamma(T) ≥ 3i(T)$, and we characterize all trees attaining equality. Also we prove that for every tree $T$ of order \(n ≥ 2, i(T)≤\frac{3\beta_2(T)}{4}\), and we characterize all extreme trees.
Źródło:
Discussiones Mathematicae Graph Theory; 2021, 41, 1; 39-49
2083-5892
Pojawia się w:
Discussiones Mathematicae Graph Theory
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
SARS-CoV-2 serological findings and exposure risk among employees in school and retail after first and second wave COVID-19 pandemic in Oslo, Norway: a cohort study
Autorzy:
Moe, Anne-Mari G.
Eriksen, Mina B.
Schjølberg, Tiril
Haugen, Fred
Powiązania:
https://bibliotekanauki.pl/articles/2152968.pdf
Data publikacji:
2022
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
COVID-19
SARS-CoV-2
workplace
antibodies
schools
cohort studies
Opis:
Objectives The objective was to characterize and compare SARS-CoV-2 serology among Norwegian school employees and retail employees, and describe preventive measures taken at the workplaces. Material and Methods A cohort of 238 school and retail employees was enrolled to an ambidirectional cohort study after the first COVID-19 pandemic wave. Self-reported exposure history and serum samples were collected at 10 schools and 15 retail stores in Oslo, Norway, sampled at 2 time-points: baseline (May–July 2020); and follow-up (January–March 2021). SARS-CoV-2 antibodies targeting both spike and nucleocapsid were detected by multiplex microsphere-based serological methods. Results At baseline, 6 enrolled workers (5 in retail) presented with positive SARS-CoV-2 serology, higher than the expected 1% prevalence (3%, 95% CI: 1–6, p = 0.019). At followup, school and retail groups presented 11 new seropositive cases altogether, but groups were not significantly different, although exposure and preventive measures against viral transmission at workplaces were different between groups. Self-reported medical history of COVID-19 infection showed that all but one positive SARS-CoV-2 serological findings arising between baseline and follow-up had been diagnosed with virus testing. Conclusions Distribution of SARS-CoV-2 positive serology after the first wave was slightly higher than expected. Distribution of infection was not significantly different between the groups at baseline nor at follow-up, despite difference in exposure and protective measures. Nearly all new seropositive cases discovered between baseline and follow-up, had already been diagnosed, highlighting the importance of extensive viral testing among workers.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2022, 35, 5; 537-547
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of Humic Acid Extracted from Organic Waste Composts on Turnip Culture (Brassica rapa subsp. rapa) in a Sandy Soil
Autorzy:
Aylaj, Mina
Sisouane, Mhammed
Tahiri, Soufiane
Mouchrif, Yassine
El Krati, Mohammed
Powiązania:
https://bibliotekanauki.pl/articles/27323830.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
compost
humic acid
turnip
growth
chlorophyll foliar
protein
total soluble sugar
Opis:
Adding humic acid to soil can improve soil structure and fertility, which can lead to better plant growth and higher crop yields. Extracting humic acid from compost is a sustainable and environmentally friendly way to obtain a valuable organic material. Humic acid (HA) can be extracted from compost relatively easily and at a low cost, making it an attractive option for farmers. In this study, we investigated the use of sugarcane bagasse (SB) and immature horse manure (IHM) as bulking agents for the composting of separated municipal solid waste (SMSW) and the extraction and characterization of humic acid from the mature composts produced. Fertilizing solutions containing different concentrations of humic acid were prepared and used to evaluate their effects on turnip crop growth and various biochemical parameters during cultivation. The results showed that the humic acid extracted from the composts had high yields and were rich in elemental carbon. The application of humic acid at both low and high concentrations resulted in a significant improvement in all the parameters measured except for the total protein in the roots, which did not differ significantly between the humic acid concentrations. The yield, root diameter and fresh weight increased significantly, and the leaf area was proportional to the humic acid concentration of the solution used. The highest increase in chlorophyll a content was observed in the treatment of humic acid extracted from composts C2 and C3 at a concentration of 0.1 gL-1, with an increase of 31% and 37%, respectively, compared to the control. The use of humic acid provided by co-compost can be considered a successful management strategy for degraded sandy soils and sustainable agriculture production in sandy poor soils worldwide.
Źródło:
Journal of Ecological Engineering; 2023, 24, 7; 345--359
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kutuzow
Kutuzow i Napoleon: wielcy wodzowie
Wielcy wodzowie
Autorzy:
Kuz'mina, Larisa Mihajlovna.
Hryčeva, Tat'âna Ûr'evna.
Współwytwórcy:
Efimow, S. Tłumaczenie
Data publikacji:
2011
Wydawca:
[Moskwa] : Ołma Media Grup
Tematy:
Napoleon I (cesarz Francuzów ; 1769-1821)
Wojny napoleońskie (1803-1815)
Władcy
Wydawnictwa popularne
Biografia
Opis:
Miejsce wyd. wg: www.olmamedia.ru.
Na kartach książki naklejone są koperty zawierające karty i karty złoż.
Współwyd. w kier. przeciwnym: Napoleon / [aut.-zbiorów L. Kuźmina, T. Chryczewa ; tł. S. Efimow].
Dostawca treści:
Bibliografia CBW
Książka
Tytuł:
Association between the high risk occupations and bladder cancer in Iran: A case-control study
Autorzy:
Khoubi, Jamshid
Pourabdian, Siamak
Mohebbi, Iraj
Tajvidi, Mina
Zaroorian, Omid
Giahi, Omid
Powiązania:
https://bibliotekanauki.pl/articles/2179768.pdf
Data publikacji:
2013-04-01
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
high risk occupation
bladder cancer
Iran
occupational health
Opis:
Objectives: The objective of this work was to identify the high-risk occupations in Iran and to re-inspect occupations that were related to bladder cancer. Materials and Methods: In the study, 300 patients suffering from bladder cancer and 500 control individuals were interviewed. Demographic information, occupational history, and history of exposure to chemical compounds such as aromatic amines for each participant were collected. ORs and 95% CIs were calculated using unconditional logistic regression for each occupation. Results: There was a significantly increased risk of bladder cancer among truck and bus drivers (OR = 11.3), skilled agricultural, forestry and fishery workers (OR = 6.0), metal industry workers (OR = 6.0), domestic housekeepers (OR = 5.9), and construction workers (OR = 3.8). Conclusions: The study showed a strong correlation between truck and bus drivers, skilled agricultural, forestry and fishery workers, metal industry workers, domestic housekeepers, as well as construction workers and the increased risk of bladder cancer in these occupations.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2013, 26, 2; 205-213
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of Statistical Methods for the Comparative Study of the Degree of Pollution of Wastewater Collected from Three Olive Mills in Tangier-Tetouan-Al Hoceima Region (Northern Morocco)
Autorzy:
Es Saouini, Hind
Bouzid, Saida
Trankil, Abdellah
Amharref, Mina
Bernoussi, Abd Samed
Powiązania:
https://bibliotekanauki.pl/articles/24201736.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
olive mill wastewater
degree of pollution
multivariate statistical method
ACPN
HCPC
Opis:
Olive mill wastewaters represent a severe environmental problem, especially in Mediterranean countries. Indeed, the treatment and recovery processes developed so far remain very limited and their cost is very high. However, treatment by shallow evaporation ponds in the open air remains, until now, the most used technique despite the efforts made. The volume and characteristics of this liquid effluent depend, among other things, on the nature of the extraction process used. In this context, this work aims to evaluate the effect of the mode of trituration and storage in the evaporation ponds on the quality of olive oil mill wastewaters. These effluents were collected from three olive mills located in two different provinces in Northern Morocco during the 2021–2022 olive growing season. The sampling has considered different points according to different steps of the process. The analytical work corresponded to the measurement of in-situ parameters (Temperature (T°), Dissolved Oxygen (DO), Electrical Conductivity (EC) and pH degree (pH)) and other laboratory analysis (Suspension Matter (SM), Dry Matter (DM), Fatty Matter (FM), biochemical (BOD5) and chemical (COD)demands in oxygen). Results showed a high degree of environmental degradation. Indeed, these effluents are characterized, on average, by elevated concentrations of biological and chemical oxygen demands and suspended solids reaching up to 0.43 g/L ± 0.87, 1.69 g/L ±0.71 and 30.78 g/L ±25.1, respectively. This study also showed, except for two-phase olive mill BNANDA, a slightly alkaline nature of the vegetable waters (7.81<pH<8.52), as opposed to what was reported in the literature, and high levels in fat content (4.73 g/L ±3.85). Moreover, the estimated volume of vegetable water released in the study area during the 2019/2020 olive growing season (350×103 m3) is very high considering its equivalence to domestic water. Normalized Principal Component Analysis (ACPN) and Hierarchical Principal Component Classification (HCPC) indicate that differences in the composition of this wastewater were more pronounced between the extraction processes than by the origins of the vegetable waters (fresh or stored in the natural evaporation pond).
Źródło:
Journal of Ecological Engineering; 2023, 24, 4; 320--332
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
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