Search results for "Method"

Extraction Methods of Essential Oils From Herbs and Spices

2017

International audience; This chapter describes both conventional and non‐conventional extraction methods of essential oils (EOs) from herbs and spices. Although hydrodistillation, steam distillation and solvent extraction are the most applied methods, several non‐conventional technologies have been evaluated, especially in respect to EO recovery, and a great potential has been attributed to these non‐conventional methods. For instance, ultrasound, microwave, supercritical fluid, pulsed electric fields, ohmic‐heating and microwave (MW) extraction techniques applied alone or combined with other techniques are potent tools to obtain EOs in a 'green' way from natural resources such as aromatic …

Do teachers’ professional vision and teaching experience always go hand in hand? Examining knowledge-based reasoning of Finnish Grade 1 teachers

2021

This mixed-method study explored 54 Finnish Grade 1 teachers' professional vision and teaching experience. Teachers' retrospective think-aloud interviews, conducted while watching their eye-tracking recordings of classroom actions, were analysed according to the domains of knowledge-based reasoning. Negative associations between teaching experience and amount of knowledge-based reasoning were found. The qualitative examination of three teachers with different amounts of teaching experience provided concrete examples and broadened the findings. We suggest that teachers’ knowledge-based reasoning should be seen not only as an ability that increases with experience but also as an ability that …

The state-of-the-art of collaborative technologies for initial vocational education : a systematic literature review

2018


 
 
 Future workplaces require collaboration skills in which members of different work communities use technologies to solve complex problems. Vocational education and training (VET) programs need to meet the challenge to prepare students to be part of a competent workforce. Particularly initial vocational education is under pressure to develop learners’ collaboration skills and abilities. To date, however, no attempt has been made to perform a comprehensive review of the use of computer-supported collaborative learning (CSCL) technologies across different vocational education settings to account for contextual factors of VET. In this systematic review, 26 published studies …

Identifying Themes for Research-based Development of Pedagogy and Guidance in Higher Education

2013

The high value accorded to the research-based development of education in higher education communities means that researchers in the field have an important role in determining the foci of such efforts. However, it is important to ask whether higher education research is providing answers that satisfy practical educational needs. In this study, themes in higher education research published in Finland during 2000–2008 were compared to those addressed in non-refereed writings published by higher education teachers and students. The thematic analyses, (n = 1,298) focusing on topics related to learning, studying, and their promotion revealed the need for a broader life-wide framework for develo…

Analysis of the determinants of entrepreneurial intention: the case of Burkina Faso

2018

International audience; In this study, we propose to analyze students' entrepreneurial intention, drawing on Lazear's (2004) self-selection model. This model captures the role of "human capital" in employment assignment and emphasizes the importance of the variety of skills in the individual's entrepreneurial orientation. For this purpose, we have a database collected in 2017 from over 1000 students at Ouaga I and Ouaga II universities in Burkina Faso. The results of estimates obtained using the quantile regression method show a positive and significant effect of the diversity of skills on the intention score, mainly at the median level. Even if the effect is not strong, this result support…

Enhancing Metastability by Dissipation and Driving in an Asymmetric Bistable Quantum System.

2018

The stabilizing effect of quantum fluctuations on the escape process and the relaxation dynamics from a quantum metastable state are investigated. Specifically, the quantum dynamics of a multilevel bistable system coupled to a bosonic Ohmic thermal bath in strong dissipation regime is analyzed. The study is performed by a non-perturbative method based on the real-time path integral approach of the Feynman-Vernon influence functional. We consider a strongly asymmetric double well potential with and without a monochromatic external driving, and with an out-of-equilibrium initial condition. In the absence of driving we observe a nonmonotonic behavior of the escape time from the metastable regi…

Riflessioni metodologiche geografiche sul quartiere. Tra frontiere invisibili e barriere visibili

2012

Saber y racionalidad en el pensamiento de María Zambrano

2011

El artículo estudia la articulación de la racionalidad y sus límites con la idea moderna de método, y con la expresión poética de las dimensiones no conceptualizables de la experiencia en la obra de M. Zambrano. Como consecuencia, se opone a aquellas interpretaciones de la “razón poética” que acentúan su lado oscuro en detrimento de su utilización de procedimientos racionales.

Numerical treatment of radiation processes in the internal shocks of magnetized relativistic outflows

2017

Los blázares son un tipo de núcleo activo de galaxia (AGN, por sus siglas en inglés) que se encuentran entre los objetos astrofísicos más energéticos y violentos, a la par de los brotes de rayos gamma (GRB por sus siglas en inglés). Los procesos físicos y, en particular, el escenario del chorro relativista en el que se genera la radiación ultraenergética detectada por observatorios terrestres y en órbita, han conseguido atraer la atención e interés de los astrónomos y astrofísicos desde su descubrimiento. En la presente tesis investigamos el modelo de choques internos (IS) cuya hipótesis consta del choque de dos capas de plasma con geometría cilíndrica, formando dos ondas de choque que atra…

Planning as evolution: radical pedagogy, creative methods and urban research

2022

Beyond reductionist thought, looking at a theoretical framework that embrace a complex dimension of knowledge, the urban planning discipline is going through a radical change. An attitude well expressed by a large group of intellectuals who recognize the fragility of the discipline and re-think themselves in opposition to the excess of specialization of the modern world to grasp the vital interconnection between things, the intersection spaces, on disciplinary boundaries, where concepts become images, symbols, practices, processes. In this ongoing change of paradigm, sensitive approaches and aesthetic rationalities arouse interest within urban and territorial studies. Starting from the inte…