Professional development has been marginally successful at encouraging the knowledge generation approaches promoted in international education policy. To explore whether increased attention to teachers' epistemic orientations might suggest necessary innovations existing professional routines, an explanatory sequential mixed-methods analysis was conducted inside a three-year program for in-servi...

‎Second derivative general linear methods (SGLMs) as an extension‎ ‎of general linear methods (GLMs) have been introduced to improve‎ ‎the stability and accuracy properties of GLMs‎. ‎The coefficients of‎ ‎SGLMs are given by six matrices‎, ‎instead of four matrices for‎ ‎GLMs‎, ‎which are obtained by solving nonlinear systems of order and‎ ‎usually Runge--Kutta stability conditions‎. ‎In this p...

The numerical optimization of continuous parameters in electrotechnical design using electromagnetic field simulation is already standard. In this paper, we describe a new sequential surrogate optimization approach for simulation-based mixed-integer nonlinear programming problems. We apply the method for the optimization of combined integerand real-valued geometrical parameters of the coils of ...

The optimization of continuous parameters in electrotechnical design using electromagnetic field simulation is already standard. In this paper, we present a new sequential modelling approach for mixed-integer simulationbased optimization. We apply the method for the optimization of integerand real-valued geometrical parameters of the coils of a superconductive magnet.

BACKGROUND Adolescents have particular health and developmental needs that suggest they should neither be treated as older children nor younger adults. OBJECTIVES The aim of this paper is to report the protocol for a mixed methods study that set out to investigate the health concerns of Iranian adolescents and their sources of health information with the goal of identifying suitable strategie...

‎we extend the method of adaptive two-stage sequential sampling to‎‎include designs where there is more than one criteria is used in‎‎deciding on the allocation of additional sampling effort‎. ‎these‎‎criteria‎, ‎or conditions‎, ‎can be a measure of the target‎‎population‎, ‎or a measure of some related population‎. ‎we develop‎‎murthy estimator for the design that is unbiased estimators for‎‎t...

The study investigated demand and supply of mathematics teachers in Ghanaian senior high schools. procedure involved a cross sectional survey that used structured online questionnaire to elicited information on the for SHS teachers. A sequential explanatory mixed methods design was employed with sample from 195 schools then 10 political regions country, selected purposely complete designed usin...