نتایج جستجو برای: experiments

تعداد نتایج: 489352  

Journal: :The ANNALS of the American Academy of Political and Social Science 2010

FH Shirazi

Assessment of the cellular effects of natural and/or synthetic products is one of the major goals in biological experiments. This assessment may be conducted at different levels; cellular viability, cellular biological activity, and cellular structure and morphology. Different assays are available for any of above purposes. It is becoming of a routine exercise to apply any of these assays, and ...

Increasing the population, urbanization has led to the rapid construction of buildings. Due to space constraints and an increase in land cost, these buildings are built too close to each other and can cause damage under dynamic actions such as earthquakes. A new technique, known as Structural coupling, has been developed recently, has found very effective in dissipating the dispersive vibration...

2017
Mateo Díaz Ronan Le Bras Carla P. Gomes

Spatially Balanced Latin Squares are combinatorial structures of great importance for experimental design. From a computational perspective they present a challenging problem and there is a need for efficient methods to generate them. Motivated by a real-world application, we consider a natural extension to this problem, balanced Latin Rectangles. Balanced Latin Rectangles appear to be even mor...

2015
Lane Fischer John Hilton Iii T Jared Robinson David A Wiley

In some educational settings, the cost of textbooks approaches or even exceeds the cost of tuition. Given limited resources, it is important to better understand the impacts of free open educational resources (OER) on student outcomes. Utilizing digital resources such as OER can substantially reduce costs for students. The purpose of this study was to analyze whether the adoption of no-cost ope...

Journal: :Educational Technology & Society 2016
Mehmet Arif Ozerbas Bilge Has Erdogan

This study aimed to observe whether the learning environment created by digital classroom technologies has any effect on the academic success and online technologies self-efficacy of 7th grade students. In this study, an experimental design with a pre-test/post-test control group was used. The research was conducted with 58 students in a secondary school of Ankara. At the beginning of the study...

Journal: :Social Choice and Welfare 2008
Yoram Amiel Frank A. Cowell Liema Davidovitz Avraham Polovin

It is known from the literature on uncertainty that in cases where individuals express a preference for a high win-probability bet over a bet with high winnings they nevertheless will bid more to obtain the bet with high winnings. We investigate whether a similar phenomenon applies in the parallel social-choice situation. Here decisions are to be made between a distribution with a large group o...

2006
Andrew Warr

Much attention within the design community has focused on understanding and supporting situated or distributed design. However, in the practice of design, including techniques such as participatory design, the relationship between situated and distributed design should not be considered an or relationship, but rather an and relationship. Furthermore, extending upon the notion of distributed we ...

2007
Dragan Randjelović Ćemal Doličanin Milan Randjelović

With the design B(v,r_1,...,r_v,b,k_1,...,k_b,λ{12},...,λ{v-1,v}),like one combinatorial configuration, can be presented organization of one experiment in which participate finite number v different elements some basic set V, which should organise in the b designs each with defined number k_j (j=1,...,v) elements from this basic set, but so that every of this elements are exactly in ri (i=1,......

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