This paper is related to a research of modelling fuzzy-neural systems using the coevolutionary algorithm, and has the focus on advantages of using the coevolutionary algorithm for system structure optimization. In the context of this work, the term fuzzy-neural system defines the system that can be used as the fuzzy system with all its functionalities or as the neural network with all its functionalities. The hybridization of fuzzy logic, neural networks and coevolutionary algorithm and its architecture are presented in general, and the role of the coevolutionary algorithm in structure optimization is described in details. Results of testing with Iris Database, from UCI Machine Learning Repository are also presented. Tests performed during the research supports the conclusion that usage of the coevolutionary algorithm for the fuzzy-neural system’s structure optimization is very efficient.
Istinito vrednovanje poljoprivredne opreme kojom upravlja menadžment poduzeca opci je standard realnog izvjestavanja: vlasnika, osnivaca poduzeca, lokalne samouprave (ukoliko je rijec o javnom poduzecu), kao i u drugim okolnostima (primjerice prilikom fuzioniranja ili spajanja poduzeca). Cilj rada je na temelju provednog istraživanja u poduzecu srednje velicine, koje se bavi poljoprivrednom djelatnoscu u Republici Srbiji, doci do relevantnih zakljucaka. Istraživanje je, po misljenju autora, moguce primijeniti u vecem broju, prije svega srednje velikih poljoprivrednih poduzeca na prostoru Srbije, ali i sire, na prostorima bivse Jugoslavije. Bitno olaksanje u primjeni pravilnog vrednovanja opreme poduzeca je kontinuirana harmonizacija i primjena Međunarodnih racunovodstvenih standarda i Međunarodnih standarda financijskog izvjestavanja u zemljama EU, ali i u zemljama koje žele uci u tu zajednicu.
PURPOSE: The aim of this study was to examine the reliability, validity and usefulness of the 30–15IFT in competitive female soccer players. METHODS: Seventeen elite female soccer players participated in the study. A within subject test-retest study design was utilized to assess the reliability of the 30–15 intermittent fitness test (IFT). Seven days prior to 30–15IFT, subjects performed a continuous aerobic running test (CT) under laboratory conditions to assess the criterion validity of the 30–15IFT. End running velocity (VCT and VIFT), peak heart rate (HRpeak) and maximal oxygen consumption (VO2max) were collected and/or estimated for both tests. RESULTS: VIFT (ICC = 0.91; CV = 1.8%), HRpeak (ICC = 0.94; CV = 1.2%), and VO2max (ICC = 0.94; CV = 1.6%) obtained from the 30–15IFT were all deemed highly reliable (p > 0.05). Pearson product moment correlations between the CT and 30–15IFT for VO2max, HRpeak and end running velocity were large (r = 0.67, p = 0.013), very large (r = 0.77, p = 0.02) and large (r = 0.57, p = 0.042), respectively. CONCLUSION: Current findings suggest that the 30–15IFT is a valid and reliable intermittent aerobic fitness test of elite female soccer players. The findings have also provided practitioners with evidence to support the accurate detection of meaningful individual changes in VIFT of 0.5 km/h (1 stage) and HRpeak of 2 bpm. This information may assist coaches in monitoring “real” aerobic fitness changes to better inform training of female intermittent team sport athletes. Lastly, coaches could use the 30–15IFT as a practical alternative to laboratory based assessments to assess and monitor intermittent aerobic fitness changes in their athletes.
In this work we describe the development of the kinetic molecular theory of liquids (KMTL) concept inventory, as well as its use in investigating students’ conceptual understanding of the KMTL within the contexts of aggregate states, evaporation, boiling, condensation, conduction, convection, diffusion, and surface tension. We implemented think-alouds to prepare distractors for the closed-ended version of the KMTL, which was administered to two groups of respondents: non-physicists and physicists (166 students in total from the Universities of Rijeka and Split, Croatia). From the think-alouds and results of written survey research we drew conclusions about the students’ understanding of the structure of matter, thermal internal energy, entropy, temperature, and pressure. Our study not only reiterates earlier findings on students’ ideas about the KMTL, it also reveals numerous additional misconceptions that had not been reported earlier. Psychometric analyses support a formative use of the KMTL inventory. The inventory questions may be extensively used for identifying misconceptions, as well as for stimulating classroom discussions and conceptual change.
Nanoparticles are molecules with size depended chemical and pyhsical characteristics, enabling interesting and correlated approaches while dealing with fundamental biological questions. Nanoparticles are capable of strong and important interaction with other molecules. Many different nanoparticles are produced, with variety of different roles, but Gold nanoparticle as metal based beads, have specific importance due to their attractive physical and chemical properties, biocompatibility, and facile surface modification. In general, nanoparticles have the ability to interact with whole physiological surrounding once when they enter human body. In most of the cases, first molecule they interact with are proteins, which are the main constituens of human body and the driving force of most of the biological processes. This understanding of interaction between nanoparticles and proteins represents an important essence for secure and efficient application of nanoparticles. In this regards, several methods for nanoparticle-protein interaction were developed and analysed in this review. Further, this paper reviews the current scientific development in nanoparticle-protein interactions.
Heavy metal ATPases (HMAs) are the most important proteins involved in heavy metal accumulation process. Brassica oleracea has 5 HMA (1-5) homologues whose 3D structure has been predicted and validated in this study by different bioinformatics tools. Phylogenetic and multiple sequence alignment analyses showed high relationship between HMA2 and HMA4, while two same domains were identified in all five HMA proteins: E1-E2 ATPase and haloacid dehydrogenase (HAD) domain. Four HMA (2-5) proteins were identified to be localized in the plasma membrane, while HMA1 localization is predicted to be in plastid. Interactome analysis revealed high interaction of all HMA (1-5) proteins with many metal ion binding proteins and chaperones. Among these, interesting and strong interaction is observed between all HMA (1-5) proteins and ATX1, while HMA1, HMA2 and HMA4 have been found to strongly interact with FP3 (farnesylated protein 3) and FP6 (farnesylated protein 6) proteins. Docking site predictions and electrostatic potentials between HMA2/HMA4 and the interactome proteins were explained and discussed in this study.
Entrepreneurship has an increasingly important role in economic growth and development in both developed and underdeveloped countries. Also, various forms of entrepreneurial behavior are important in promoting economic and social development. Thus, it is not surprising that entrepreneurship and entrepreneurial activity have received a significant attention from both academics and policy makers. It is important for both groups to better understand the various factors that affect and stimulate entrepreneurial behavior. Previous research has shown that entrepreneurial intentions of individuals represent effective and strong explanatory factor that predicts quite well their future entrepreneurial behavior. Also, entrepreneurial intentions are crucial to the entrepreneurial process as an important first step in a series of actions that leads to the creation of entrepreneurial project. Although there are different theoretical models of entrepreneurial intentions in the extant literature, they actually contain conceptually related elements and offer quite comparable interpretations of entrepreneurial intentions. In order to explore entrepreneurial intentions and their antecedents in South-East European context we have conducted a paper-and-pencil self-administered survey among students of economics and business in four South-East European countries, namely: Bosnia and Herzegovina, Croatia, Macedonia and Serbia. The sample consisted of 1200 respondents, 300 of respondents from each country included in study. The highly structured questionnaire with set of items derived from the literature and Likert-type scale were used as data collection instrument. The following scales were included in the questionnaire: locus of control, risk taking propensity, perceived barriers, perceived support factors, personal attitude towards entrepreneurship, perceived behavioral control, subjective norm and entrepreneurial intention (Lumpkin, 1985; Luthje, Franke, 2003; Linan, Chen, 2009). Collected data were analyzed with multiple regression technique in order to explore the effects of various antecedents on entrepreneurial intention in the context of South-East European countries. The results indicate that personal attitude towards entrepreneurship, perceived behavioral control and subjective norm positively and significantly affect entrepreneurial intent. Respondents from Bosnia and Herzegovina exhibit higher levels of entrepreneurial intent compared to other observed countries. The findings of our research provide better understanding of entrepreneurial intentions and their antecedents in the specific post-transition context of South-East European countries. Theoretical and policy implications of research findings are discussed in the paper.
A acao repetitiva e o esforco fisico podem provocam acidentes como os cortes, quedas, torcoes, causarem problemas nas colunas e pes, alem de caibras e tendinites. Diante deste cenario, o presente estudo objetivou analisar os riscos que ocasionam acidentes de trabalho numa area de usina de acucar e alcool na Zona da Mata Norte do Estado de Pernambuco. Foram analisados atraves de pesquisa de campo de carater quantitativa, por amostragem com aplicacao de um questionario, com aspectos investigativos, os tipos de acidentes com maiores frequencias, gravidades e quantos dias que este acidente afastou o trabalhador de sua atividade laboral, para assim, compreender e prevenir esses riscos que se acentuam nos canaviais,. Os trabalhadores recebem os EPI’s, mas nao os usam corretamente, utilizando pedra de esmeril para amolar o facao de forma insegura, causando ferimento na mao, dependendo da gravidade o trabalhador pode ficar em media de 7 a 10 dias afastado. E organizada uma forca tarefa no campo com a participacao dos Gerentes do campo, Tecnicos agricolas liderem de turma e em especial os tecnicos do Servico Especializado em Seguranca do Trabalho Rural – SESTR com a realizacaode treinamentos no canavial, educando e conscientizando cada trabalhador sobre a importância de se proteger. O campo recebe esta visita duas vezes por semana, incluindo a presenca da Enfermeira do Trabalho desta forma o indice de acidente por amolar o facao reduziu em media de 70%. Case study on risks and accidents among rural workers of a plant marta Pernambuco north Abstract : The repetitive action and physical exertion can cause accidents such as cuts, falls, sprains, causing problems in columns and feet, as well as cramps and tendonitis. In this scenario, this study aimed to analyze the risks that cause workplace accidents in an area of sugar and alcohol plant in the Zona da Mata Norte of Pernambuco. Were analyzed by quantitative character of field research, sample by applying a questionnaire with investigative aspects, types of accidents with higher frequencies, severities and how many days this accident away the worker of his labor activity, thus, understand and prevent these risks are accentuated in the cane fields. Workers receive the PPE, but not use them properly, using emery stone to sharpen the knife in an unsafe manner, causing injury to the hand, depending on the severity worker can get an average of 7 to 10 days away. It organized a task force in the field with the participation of field managers, shift to lead agricultural technicians and especially the staff of the Specialized Service in Rural Work Safety - SESTR with realizacaode training in the cane fields, educating and educating each employee of the importance to protect. The field gets this visit twice a week, including the presence of the Labor Nurse this way the accident rate by sharpening the machete reduced by an average of 70%.
Extracurricular activities represent educational, preplanned actions which enable complete confirmation of students’ personality as well as development of their communication skills and competencies; whilst they enable the teachers to expand their educational influence. Modern school can’t be imagined without innovations or modifications to the entire communicational discourse, since its perspective is to be a progressive model whereat main communicational types of behavior are learnt and formed. The research was carried out at primary and secondary schools in the area of Bosnia and Herzegovina (Mostar region) and it included 590 students and 315 teachers. With this empirical research we have tested the presence of a democratic, voluntary, partnership and pedagogic-stimulating communication within the process of putting the extracurricular activities into realization. The goal of our research was to determine whether there is a statistically significant difference between evaluations made by students and those made by teachers of primary and secondary schools that a democratic, voluntary, partnership and pedagogic stimulating communication is mostly dominant in the process of putting extracurricular activities into realization. The results we have collected have shown the difference between students’ and teachers’ perception of dominant communication in realization of extracurricular activities.
This study reports the analysis of nine bisphenols (BPA, BPAF, BPAP, BPB, BPC, BPE, BPF, BPS, and BPZ) and related compounds (4-cumylphenol and dihydroxybenzophenone) in honey and food simulant. After sample preconcentration with Oasis HLB cartridges, analytes were silylated and analyzed by GC-MS. The validated methods with LODs in sub ng g-1 were applied to 36 honey samples from European and non-European countries and food simulant stored in selected corresponding containers. Honey samples contained BPA, BPAF, BPE, BPF, BPS, and BPZ in amounts up to 107, 53.5, 12.8, 31.6, 302, and 28.4 ng g-1, respectively. Under simulating conditions, BPA and BPAF were detected in food simulant up to 42.2 and 19.8 ng mL-1, respectively. In certain cases, the detected bisphenols in honey probably derive from a source other than the final packaging.
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