Amorphization of ZnAl2O4 spinel under heavy ion irradiation

ZnAl2O4 spinels have been irradiated with several ions (Ne, S, Kr and Xe) at the IRRSUD beam-line of the GANIL facility, in order to determine irradiation conditions (stopping power, fluence) for amorphisation. We observed by Transmission Electron Microscopy (TEM) that with Xe ions at 92 MeV, individual ion tracks are still crystalline, whereas an amorphisation starts below a fluence of 5.1012 cm-2 up to a total amorphisation between 1x1013 and 1x1014 cm-2. The coexistence of amorphous and crystalline domains in the same pristine grain is clearly visible in the TEM images. All the crystalline domains remain close to the same orientation as the original grain. According to TEM and X-Ray Diffraction (XRD) results, the stopping power threshold for amorphisation is between 9 and 12 keV.nm-1

‘Deliberate Preparation’ as an evidence-based focus for primary physical education

There is substantial scientific research suggesting the physical and psychological health benefits of a physically active lifestyle. Consequently, governments worldwide prioritize policies, finances, and resources in healthcare, education, and sports sectors to increase mass participation in physical activity. However, practices in physical activity promotion are often not underpinned by evidence-based standardization that is requisite in other domains of epidemiology. The aim of this article is to examine critically the available scientific research on promoting life-long physical activity participation and to propose an evidence-based model for implementation in school physical education. Reasons are discussed as to why programs that integrate physical, psychological, and behavioral skills have been long acknowledged in physical education and physical activity domains but remain lacking in empirical validation. Finally, future directions are suggested that are required to examine the application of this approach to practice in primary-level physical education

Soil weathering rates in 21 catchments of the Canadian Shield

Soil mineral weathering represents an essential source of nutrient base cation (Ca, Mg and K) for forest growth in addition to provide a buffering power against precipitation acidity for soils and surface waters. Weathering rates of base cations were obtained for 21 catchments located within the temperate and the boreal forest of the Canadian Shield with the geochemical model PROFILE. Weathering rates ranged from 0.58 to 4.46 kmol<sub>c</sub> ha<sup>−1</sup> yr<sup>−1</sup> and their spatial variation within the studied area was mostly in agreement with spatial variations in soil mineralogy. Weathering rates of Ca and Mg were significantly correlated (<i>r</i> = 0.80 and 0.64) with their respective lake concentrations. Weathering rates of K and Na did not correlate with lake concentrations of K and Na. The modeled weathering rates for each catchment were also compared with estimations of net catchment exportations. The result show that modeled weathering rates of Ca were not significantly different than the net catchment exportations while modeled weathering rates of Mg were higher by 51%. Larger differences were observed for K and Na weathering rates that were significantly different than net catchment exportations being 6.9 and 2.2 times higher than net exportations, respectively. The results for K were expected given its high reactivity with biotic compartments and suggest that most of the K produced by weathering reactions was retained within soil catchments and/or above ground biomass. This explanation does not apply to Na, however, which is a conservative element in forest ecosystems because of the insignificant needs of Na for soil microorganisms and above ground vegetations. It raises concern about the liability of the PROFILE model to provide reliable values of Na weathering rates. Overall, we concluded that the PROFILE model is powerful enough to reproduce spatial geographical gradients in weathering rates for relatively large areas as well as adequately predict absolute weathering rates values for the sum of base cations, Ca and Mg

A phenomenological model of the superconducting state of the Bechgaard salts

We present a group theoretical analysis of the superconducting state of the Bechgaard salts, e.g., (TMTSF)_2PF_6 or (TMTSF)_2ClO_6. We show that there are eight symmetry distinct superconducting states. Of these only the (fully gapped, even frequency, p-wave, triplet) 'polar state' is consistent with the full range of the experiments on the Bechgaard salts. The gap of the polar state is d(k) (psi_uk,0,0), where psi_uk may be any odd parity function that is translationally invariant.Comment: 4 pages, no figure

Defendant\u27s Exhibit 610K1e: Sam Sheppard Handwriting Sample

Bouffard Known writing and Overlay of Sam\u27s writing 3 National City Bank Checkshttps://engagedscholarship.csuohio.edu/defendant_exhibits_2000/1040/thumbnail.jp

Defendant\u27s Exhibit 608: Philip Bouffard CV

Dr. Phillip Bouffard Curriculum Vitae (Handwriting Expert)https://engagedscholarship.csuohio.edu/defendant_exhibits_2000/1035/thumbnail.jp

Defendant\u27s Exhibit 610K1c: Sam Sheppard Handwriting Sample

Bouffard Known writing and Overlay of Sam\u27s writing Mrs. Keith Weigle...https://engagedscholarship.csuohio.edu/defendant_exhibits_2000/1038/thumbnail.jp

State v. Durepo: Toward a Principled Maine Version of the Impeachment Exception to the Exclusionary Rule

As one might have anticipated, the broad substantive mandates of the major Warren Court exclusionary rule decisions have not been left completely intact by later Supreme Court decisions. Instead, the scope of the evidentiary exclusionary doctrine established by the Warren Court has been significantly narrowed by later Supreme Court decisions that have created numerous exceptions to the general command of the exclusionary rule that evidence obtained through unconstitutional means is inadmissible in a criminal trial. Although some members of the present Court argue that the exceptions to the exclusionary rule are consistent with the purposes of the rule, and therefore legitimate, other Justices argue that some of the exceptions to the exclusionary rule erode the constitutional rights of criminal defendants. Two cases which characterize the movement toward more restrictive application of the exclusionary rule are Harris v. New York and United States v. Havens. These cases generated an exception to the exclusionary rule by allowing the introduction of unconstitutionally obtained evidence at trial for the purpose of impeaching a criminal defendant\u27s credibility, notwithstanding the inadmissibility of the evidence in the prosecution\u27s case in chief. In State v. Durepo, the Maine Supreme Judicial Court, sitting as the Law Court, applied the settled federal law of Harris and Havens and affirmed the attempted murder and aggravated assault convictions of Thomas Durepo, whose suppressed pre-trial statements were used to impeach his credibility at trial. Justice Wathen, writing for the majority, concluded that the Law Court was bound by Harris and Havens because Durepo did not raise any state constitutional issues on appeal. Furthermore, in dicta the majority opinion explicitly endorsed the underlying rationale of the Harris-Havens rule. Dissenting in part, Justice Glassman argued that as a matter of state constitutional law statements suppressed under Miranda should not be admissible in Maine courts for any purpose. In a concurring opinion joined by Justice Nichols, Justice Roberts agreed with the majority that absent a violation of the Maine Constitution, the Law Court could not reject Harris-Havens on state constitutional grounds. However, the concurring justices were unwilling to join the majority\u27s endorsement of the Harris-Havens rationale

Defendant\u27s Exhibit 610K1f: Sam Sheppard Handwriting Sample

Bouffard Known writing and Overlay of Sam\u27s writing 2 National City Bank Checks (Progressive Mutual)https://engagedscholarship.csuohio.edu/defendant_exhibits_2000/1041/thumbnail.jp

Defendant\u27s Exhibit 610K1f: Sam Sheppard Handwriting Sample

Bouffard Known writing and Overlay of Sam\u27s writing 2 National City Bank Checks (Progressive Mutual)https://engagedscholarship.csuohio.edu/defendant_exhibits_2000/1041/thumbnail.jp