Across two years, we examined the effects of teachers’ attempts to implement computer supported collaborative learning (CSCL) communities in classrooms in two high schools on students’ knowledge building, strategic learning, and perceptions of the classroom environment. In year one, 429 (fall) and 317 (spring) students in the classes of 8 teachers and in year two, 946 students in the classes of...

Base-extracted particulate organic matter (BEPOM) collected in low (spring) and high (summer) runoff seasons the Changjiang Estuary adjacent nearshore/offshore shelf areas was examined using absorption fluorescence spectroscopy. Parallel factor analysis (PARAFAC) identified two humic-like (C1p C2p) biologically-refractory components protein-like (C3p C4p) bioreactive components. Absorption coef...

Results, and Innovations in Nutrition Globally (SPRING) project that use secondary analysis of Demographic and Health Survey data to determine barriers to distribution and consumption of iron–folic acid (IFA) through antenatal care systems in a range of countries. This brief describes key characteristics of and barriers to successful IFA supplementation in Senegal. SPRING NUTRITION TECHNICAL BRIEF

In this work, by replacing the traditional solid spokes with colloidal spokes, a vehicle wheel with a built-in suspension structure is proposed. Following the background and description of the wheel system, firstly, a vibration model of the wheel equipped with colloidal spokes is proposed, and based on such model the equivalent damping coefficients and spring constants are identified. Then, a m...

The Yoneda Lemma tells us that the Hom bifunctor is “non-degenerate” in a similar way. (a) For each object X ∈ C verify that hX := HomC(X,−) defines a functor C → Set. (b) Given two objects X,Y ∈ C state what it means to have hX ≈ hY as functors. (c) Given two objects X,Y ∈ C and an isomorphism of functors hX ≈ hY , prove that we have an isomorphism of objects X ≈ Y . [Hint: Let Φ : hX ∼ −→ hY ...

Executive Summary This summary of the state of the knowledge related to nutrient effects on spring ecosystems and biota represents a synthesis of the most important findings from the literature. The report was commissioned by the Springs Initiative of the Florida Department of Environmental Protection (DEP) to review the pertinent literature related to nutrient effects on spring ecosystems and ...