16 research outputs found

    Exploring Kinematics with The Moving Man simulation

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    To learn the basics of position, velocity, and acceleration, and how they interact. To see how these quantities interact graphically; to graph them; and to interpret graphs of the

    Exploring the Area of Rectangles and their Applications

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    We will explain how to find the area of rectangles using the TI 84 tutorial. We will use “Area Explorer” from Project Interactivate to demonstrate how to find the area of different rectangular shapes. A Pre-designed house plan from GSP will be given to the students (to be loaded in each computer) to simulate a floor renewal. Students will calculate different areas from the house floor plan and collect the data

    Using TI Calculator as Data Collector

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    Students will become familiar with using their graphing calculators as data collection devices. Students will explore the relationship between displacement, velocity, and acceleration and be able to relate characteristics of each of them graphically

    Motion of an Object in Free-Fall Using Interactive Physics

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    Students will understand that the vertical component of motion of an object in free-fall is not dependent on properties of the object, or on the horizontal component of the object’s motion

    Hydrogen-Deuterium Exchange between MBH4 and MBD4 (M = Li, Na). Isotope Effects on the 1H and 11B NMR Spectra of the BHnD4-n Anions and a Discussion of Exchange Reactions in Some Covalent Tetrahydroborate Systems

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    The H NMR spectra of lithium and sodium borohydrides, in various solvents, have been recorded. The resulting chemical shift and coupling constant data do not yield any clear indications of variations in solution structure. Hydrogen-deuterium exchange between LiBH and LiBD occurs in some ethereal solvents yielding a mixture of partially substituted species, LiBHD (n = 0 to 4). These observations are relevant to the isotopic distribution in the products of exchange reactions involving some covalent borohydrides. Isotope effects in the H and B NMR spectra of LiBHD (THF solvent) and NaBHD (alkaline aqueous solvent) are described. Chemical shifts (B and H) and coupling constants, J(B-H), decrease approximately monatonically with deuterium substitution. These isotope effects are considered to arise from the modification of the vibrational characteristics of the (BHD) species

    Financial and socio-economic viability of irrigated agricultural development in the Roper catchment: A technical report from the CSIRO Roper River Water Resource Assessment for the National Water Grid

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    Sustainable regional development is a priority for the Australian and Northern Territory governments. Across northern Australia, however, there is a scarcity of scientific information on land and water resources to complement local information held by Indigenous owners and landholders. Sustainable regional development requires knowledge of the scale, nature, location and distribution of the likely environmental, social and economic opportunities and the risks of any proposed development. Especially where resource use is contested, this knowledge informs the consultation and planning that underpins the resource security required to unlock investment. In 2019 the Australian Government commissioned CSIRO to complete the Roper River Water Resource Assessment. In response, CSIRO accessed expertise and collaborations from across Australia to provide data and insight to support consideration of the use of land and water resources for development in the Roper catchment. While the Assessment focuses mainly on the potential for agriculture, the detailed information provided on land and water resources, their potential uses and the impacts of those uses are relevant to a wider range of regional-scale planning considerations by Indigenous owners, landholders, citizens, investors, local government, the Northern Territory and federal governments. Importantly the Assessment will not recommend one development over another, nor assume any particular development pathway. It provides a range of possibilities and the information required to interpret them - including risks that may attend any opportunities - consistent with regional values and aspirations. The purpose of this report is to provide information on the costs, risks and benefits of new irrigated development in the catchment of the Roper River, at farm to scheme and regional scales, and supply chains beyond. The overall conclusion is that large public dams would be marginal, but on-farm water sources, suitably sited, could provide good prospects for viable new farms

    Photoreceptor Degeneration, Azoospermia, Leukoencephalopathy, and Abnormal RPE Cell Function in Mice Expressing an Early Stop Mutation in CLCN2

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    This study characterizes a chemically induced mutation leading to an early stop codon in CLCN2 that causes photoreceptor degeneration, leukoencephalopathy, and azoospermia. Loss of one functional Clcn2 allele significantly reduced the electroretinogram light peak response, suggesting that this chloride channel is necessary for the generation of this response
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