A Comparison of Collaborative Practice and Teacher Leadership Between Low-Performing and High-Performing Rural Kentucky High Schools

This article reports the findings of the 2011 results of ‘very rural’ Kentucky high schools on the Teaching, Empowering, Leading and Learning (TELL) Survey to determine whether differences existed between high and low performing rural schools across specific survey items. Schools with ACT scores one standard deviation (or more) above their predicted value were compared to rural high schools where students’ ACT scores were one standard deviation (or more) below their predicted value. Beale Codes of seven through nine from the United States Department of Agriculture were used to identify very rural Kentucky high schools. Very rural high schools identified as high-performing demonstrated significantly different results on survey items related to a culture of collaboration and teacher leadership than rural high schools identified as low performing. The survey suggested that in high-performing schools, the principal and teachers supported each other in their development as instructional leaders, and established communication and collaboration skills with families and community stakeholders

Antibody Labelling of Resilin in Energy Stores for Jumping in Plant Sucking Insects

The rubbery protein resilin appears to form an integral part of the energy storage structures that enable many insects to jump by using a catapult mechanism. In plant sucking bugs that jump (Hemiptera, Auchenorrhyncha), the energy generated by the slow contractions of huge thoracic jumping muscles is stored by bending composite bow-shaped parts of the internal thoracic skeleton. Sudden recoil of these bows powers the rapid and simultaneous movements of both hind legs that in turn propel a jump. Until now, identification of resilin at these storage sites has depended exclusively upon characteristics that may not be specific: its fluorescence when illuminated with specific wavelengths of ultraviolet (UV) light and extinction of that fluorescence at low pH. To consolidate identification we have labelled the cuticular structures involved with an antibody raised against a product of the Drosophila CG15920 gene. This encodes pro-resilin, the first exon of which was expressed in E. coli and used to raise the antibody. We show that in frozen sections from two species, the antibody labels precisely those parts of the metathoracic energy stores that fluoresce under UV illumination. The presence of resilin in these insects is thus now further supported by a molecular criterion that is immunohistochemically specific

Photoelectrochemical properties of mesoporous NiOx deposited on technical FTO via nanopowder sintering in conventional and plasma atmospheres

Nanoporous nickel oxide (NiO x ) has been deposited with two different procedures of sintering (CS and RDS). Both samples display solid state oxidation at about 3.1 V vs Li+/Li. Upon sensitization of CS/RDS NiO x with erythrosine b (ERY), nickel oxide oxidation occurs at the same potential. Impedance spectroscopy revealed a higher charge transfer resistance for ERY-sensitized RDS NiO x with respect to sensitized CS NiO x . This was due to the chemisorption of a larger amount of ERY on RDS with respect to CS NiO x . Upon illumination the photoinduced charge transfer between ERY layer and NiO x could be observed only with oxidized CS. Photoelectrochemical effects of sensitized RDS NiO x were evidenced upon oxide reduction. With the addition of iodine RDS NiOx electrodes could give the reduction iodine → iodide in addition to the reduction of RDS NiO x . p-type dye sensitized solar cells were assembled with RDS NiO x photocathodes sensitized either by ERY or Fast Green. Resulting overall efficiencies ranged between 0.02 and 0.04 % upon irradiation with solar spectrum simulator (Iin : 0.1 W cm −2 )

Peptide immobilisation on porous silicon surface for metal ions detection

In this work, a Glycyl-Histidyl-Glycyl-Histidine (GlyHisGlyHis) peptide is covalently anchored to the porous silicon PSi surface using a multi-step reaction scheme compatible with the mild conditions required for preserving the probe activity. In a first step, alkene precursors are grafted onto the hydrogenated PSi surface using the hydrosilylation route, allowing for the formation of a carboxyl-terminated monolayer which is activated by reaction with N-hydroxysuccinimide in the presence of a peptide-coupling carbodiimide N-ethyl-N'-(3-dimethylaminopropyl)-carbodiimide and subsequently reacted with the amino linker of the peptide to form a covalent amide bond. Infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy are used to investigate the different steps of functionalization

American Gut: an Open Platform for Citizen Science Microbiome Research

McDonald D, Hyde E, Debelius JW, et al. American Gut: an Open Platform for Citizen Science Microbiome Research. mSystems. 2018;3(3):e00031-18

Crying wolf? : employers, awards and pay equity in the New South Wales children's services industry

Academic and other research has consistently shown that the work of child care workers has historically been undervalued due to its feminised nature, its charitable origins and a low rate of unionisation. However employer submissions to wage fixing tribunals have both challenged a higher valuation of the work and emphasised the detrimental impact on child care usage if wage rates were to increase. These submissions have persisted and had purchase in tribunal proceedings despite the growing demand for child care places, and the profitability of an increasingly privatised children’s services industry. A recent decision of the NSW tribunal has departed from this two decade old script by using the recently determined Equal Remuneration Principle to determine that the work of long day care child care employees had been undervalued. The NSW tribunal’s use of the principle and its rejection of the employers’ unsubstantiated submissions clearly showed the limits of employers ‘crying wolf’. However the long term value of the state’s equal remuneration principle is questioned given that the federal government’s Work Choices legislation renders such principles largely inoperable

WorkChoices and pay equity

The combination of the flow-on effect of the 1972 federal wage fixing principle to State tribunals and State government's passing legislation to implement the International Labour Organization's (ILO) 1951 Convention No. 100 Concerning Equal Remuneration for Men and Women Workers for Work of Equal Value meant that in theory at least the concept of equal pay for work of equal value applied throughout Australia when award wage rates were decided by industrial tribunals. Nevertheless, the difficulty of having the principle apply in practice was highlighted in 1986 when the federal tribunal refused to adopt a 'comparable worth' methodology when applying the 1972 wage fixing principle to access the appropriate award rate of pay for feminised occupations and industries. Despite the advances made in the 1970s, the inertia of the gender earnings gap in Australia can be seen by the proportion of female full-time 'ordinary time earnings', that is earnings that exclude overtime, relative to male earnings: in the period between 1981 and 2003 female earnings in Australia hovered at about 80 to 85 per cent of male earnings. This stagnation in gender pay equity motivated the Keating government in 1993 to amend the federal Industrial Relations Act 1988, adding equal remuneration provisions primarily based on ILO Convention No. 100