REVIEW ESSAY: UTOPIA MADE PRACTICAL? ACTION RESEARCH COMES OF AGE

Review Essay: Utopia Made Practical? Action Research Comes of Age

This large and important work gathers together an enormous variety of action research processes, applications and skills in its 45 chapters.Following a useful section of chapter outlines and an introduction by the editors, a section on "Groundings" offers a number of value and epistemological positions.This is followed in turn by three other sectio

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Insect chaperones Hsp70 and Hsp90 cooperatively enhance toxicity of Bacillus thuringiensis Cry1A toxins and counteract insect resistance

Bacillus thuringiensis (Bt) produces different insecticidal proteins effective for pest control.Among them, Cry insecticidal proteins have been used in transgenic plants for the control of insect pests.However, evolution of resistance by insects endangers this technology.Previous work showed that the lepidopteran insect Plutella xylostella PxHsp90

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Center of mass of a system of variable mass particles

Abstract We study the dynamics of the center of mass (CM) of a set of particles when the number of SPDT 6volt Relay particles in the system varies during a short interval of time, or when the value of the mass of one of the particles depends on time.We show that in both situations, while the population or mass of the system varies, the linear momen

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