Search results for "Scientific"
showing 10 items of 1193 documents
SCIENTIFIC THINKING: THE BACKBONE OF MODERN SCIENCE AND TECHNOLOGY EDUCATION
2014
Science and Technology Education (STE) along with Artistic and Pragmatic Education today is continuously and fast developing branch of education to satisfy actual needs of modern life. It follows the development of scientific research of real life phenomena and implementation of corresponding results in practice. In other words, changes within our life are closely connected with corresponding changes in our education, because educational activities of any person as well as society in total mean specially organized gaining of life experience (knowledge, values, skills) for life (cognition, consideration, behaviour).
The construction of knowledge from the scientific literature about the theme seaport performance evaluation
2015
Purpose – The purpose of this paper is to know what scientific literature presents about the theme evaluation of seaport performance, thus enabling the construction of knowledge in the researchers and the identification of gaps in the research that will lead to advances in the area from the identification of the characteristics of a portfolio of relevant international publications. Design/methodology/approach – From the basic philosophical (constructivism), of the kind strategy (research-action) and the method used for the accomplishment of such strategy (structured process knowledge development process – constructivist (ProKnow-C)) the current research has a qualitative approach. Findings…
Human Resource Selection Approaches and Socially Responsible Strategy
2016
Abstract The research focuses on the characterisation of theoretical aspects of human resource (HR) selection approaches and the analysis of these approaches within a socially responsible strategy and in the context of business sustainability creation. The main methods implemented are monographic research, scientific literature analysis, synthesis, and comparison. As a result, the HR selection concept development and application summary was created as well as the importance of HR selection within a socially responsible strategy was characterised.
An overview of safety effects on pedestrians at modern roundabouts
2011
Pedestrians are important users of the transportation system, but most guidelines have given them little importance in the geometric design of roads and intersections. In these cases it can be difficult for vehicles and pedestrians to share the road safely, particularly at intersections where vehicle-pedestrian conflicts (and the risk of vehicle–pedestrian crashes) can be a frequently recurring situation even with low pedestrian volume. In a sustainable safety vision road system planning and design must include engineering choices that help to improve the sharing of road space between vehicles and pedestrians, as well as for other vulnerable users. It is known that modern roundabouts are sa…
ANALYSIS OF BARRIERS FOR BUSINESS START
2016
Entrepreneurship is one of driving forces for economic development, in European Union it has to be paid more attention to keep competitiveness in the world. Various aspects of entrepreneurship including on barriers for business start are covered in research world-wide. The aim of the current paper is to analyse barriers of new business starters in Latvia. The tasks of the current research: analysis of theoretical findings in scientific publications; analysis of new business starters views on barriers for business start; to perform statistical analysis of new business starters evaluations on business barriers. Research methods: scientific literature studies, survey of entrepreneurs in the bu…
The Social Entrepreneur as a Promoter of Social Advancement
2015
Abstract The purpose of the study is to clarify the concepts of social entrepreneur and to identify Latvia's social entrepreneurs in the context of entrepreneurship based on a review of scientific literature, a survey of social entrepreneurs and expert interviews. On the basis of an analysis of the scientific literature, a theoretical framework of entrepreneurial competences is created which forms the basis for the practical solution of the research problem. The survey method and the interview method was used for learning about a social entrepreneur's personal qualities and skills, main motives and opportunities to create social enterprises and to develop entrepreneurship, as well as to lea…
Cross-boundary and cross-discipline creation of scientific knowledge. The case of economic anthropology/ business ethnography
2018
This paper aims to show business ethnography, or economic anthropology, as a field of science that is interdisciplinary in theoretical, methodological and subjective terms, i.e. it makes use of sociology and management sciences. What this means in practice is that it is simultaneously regarded a part of sociology, social and cultural anthropology, and management sciences. Additionally, this paper addresses the fusion of science and business in case of an ethnographer as an entrepreneur. The paper presents theoretical considerations of the new entrepreneurship model for collecting knowledge based on ethnographical research. It recommends ethnographic study as the most appropriate approach fo…
Ferric sludge derived from the process of water purification as an efficient catalyst and/or support for the removal of volatile organic compounds
2019
Ferric chloride solutions are used as coagulants or flocculants in water treatment operations for human consumption. This treatment produces large amounts of clay-type solids formed mainly of montmorillonite with iron oxides and humic substances. This ferric sludge can be used as an efficient catalyst for the removal of volatile organic compounds (VOCs) by total oxidation. This waste isolated in the purification process has been activated by calcinations in air, characterized by several physicochemical techniques and employed as a catalyst for the removal by total oxidation of representative VOCs: toluene, propane and mixtures of toluene/propane with or without water. This ferric sludge has…
New silica based adsorbent material from rice straw and its in-flow application to nitrate reduction in waters: Process sustainability and scale-up p…
2021
Abstract This paper shows a particular example to move to a sustainable circular economical process from valorization of rice straw ashes by developing a green synthesis for obtaining a useful sub-product. This strategy can palliate negative effects of the agriculture waste practices on the environment and also the obtained silica reduced nitrate content in waters. It is demonstrated that the silica synthesis developed at lab was scalable more than a hundred times with good results. Adsorption studies of nitrate in standards and real well waters at lab scale and scaling-up provided similar results. Adsorption values near to 15 mg/g for nitrate standards and 8.5 mg/g for well water were obta…
OVERVIEW OF ANALYTICAL PROCEDURES FOR FATTY AND RESIN ACIDS IN THE PAPERMAKING PROCESS
2012
This review describes the role of wood extractives, especially fatty and resin acids, in papermaking, as well as the importance of their removal from process waters. One of the main aims is also to illustrate versatile analysis methods for this purpose and highlight recent developments in corresponding applications. Most of the current methods require time-consuming and laborious sample pretreatment procedures prior to gas chromatography coupled either with flame ionization or mass selective detection. However, some faster, even online techniques with minimum sample pretreatment, are also available, mainly including high performance liquid chromatography coupled with mass spectrometry. The …