Education, Religion, and the Courts in Ontario

Several Charter cases have addressed the tension between the linguistic and religious privileges built into the Constitution Act, 1867 and the egalitarianism and multiculturalism contained in sections 15 and 27 of the Canadian Charter of Rights and Freedoms. Three of these cases, Zylberberg et al. v. Sudbury Board of Education, Canadian Civil Liberties Association v. Ontario (Minister of Education), and Adler v. Ontario, involve challenges to educational regulations or policies resting on traditional assumptions about the religious nature and purpose of schooling. We show how these cases, along with two more recent examples, help clarify the meaning of multiculturalism in the post-Charter context and in particular, whether a consistent, principled approach and a particular theory of ethnic relations are embraced by the courts in resolving such matters. Plusieurs cas se fondant sur la Charte canadienne des droits et libertés soulignent la tension entre les privilèges linguistiques et religieux enchâssés dans la Loi constitution- nelle de 1967 et l’égalitarisme et le multiculturalisme contenus dans les articles 15 et 27 de la Charte canadienne. Dans trois de ces cas, Zylberger et al. v. Sudbury Board of Education, Canadian Civil Liberties Association v. Ontario (Minister of Education) et Adler v. Ontario, les règlements ou politiques en matière d’éducation reposant sur des postulats traditionnels au sujet de la nature et du but religieux de l’enseignement sont contestés. Les auteurs démontrent comment ces trois cas, ainsi que deux exemples plus récents, aident à clarifier la signification du multiculturalisme après l’adoption de la Charte canadienne des droits et libertés; ils se demandent en outre si les tribunaux font appel à une approche cohérente, reposant sur des principes, et à une théorie particulière des relations ethniques pour régler ces cas.

An Integrated Assessment of the Horticulture Sector in Northern Australia to Inform Future Development

The horticulture sector in northern Australia, covering north of Western Australia (WA), Northern Territory (NT), and north Queensland (QLD), contributes $1.6 billion/year to the Australian economy by supplying diverse food commodities to meet domestic and international demand. To date, the Australian Government has funded several studies on developing the north’s agriculture sector, but these primarily focused on land and water resources and omitted an integrated, on-ground feasibility analysis for including farmers’/growers’ perspectives. This study is the first of its kind in the north for offering a detailed integrated assessment, highlighting farmers’ perspectives on the current state of the north’s horticulture sector, and related challenges and opportunities. For this, we applied a bottom-up approach to inform future agriculture development in the region, involving a detailed literature review and conducting several focus group workshops with growers and experts from government organisations, growers’ associations, and regional development agencies. We identified several key local issues pertaining to crop production, availability of, and secure access to, land and water resources, and workforce and marketing arrangements (i.e., transport or processing facilities, export opportunities, biosecurity protocols, and the role of the retailers/supermarkets) that affect the economic viability and future expansion of the sector across the region. For example, the availability of the workforce (skilled and general) has been a challenge across the north since the start of the COVID-19 pandemic in 2020. Similarly, long-distance travel for farm produce due to a lack of processing and export facilities in the north restricts future farm developments. Any major investment should be aligned with growers’ interests. This research highlights the importance of understanding and incorporating local growers’ and researchers’ perspectives, applying a bottom-up approach, when planning policies and programs for future development, especially for the horticulture sector in northern Australia and other similar regions across the globe where policy makers’ perspectives may differ from farmers

Acute impact of inhaled short acting b2-agonists on 5 km running performance

Whilst there appears to be no ergogenic effect from inhaled salbutamol no study has investigated the impact of the acute inhalation of 1600 µg, the World Anti-Doping Agency (WADA) daily upper limit, on endurance running performance. To investigate the ergogenic effect of an acute inhalation of short acting ?2-agonists at doses up to 1600 µg on 5 km time trial performance and resultant urine concentration. Seven male non-asthmatic runners (mean ± SD; age 22.4 ± 4.3 years; height 1.80 ± 0.07 m; body mass 76.6 ± 8.6 kg) provided written informed consent. Participants completed six 5 km time-trials on separate days (three at 18 °C and three at 30 °C). Fifteen minutes prior to the initiation of each 5 km time-trial participants inhaled: placebo (PLA), 800 µg salbutamol (SAL800) or 1600 µg salbutamol (SAL1600). During each 5 km time-trial HR, VO2, VCO2, VE, RPE and blood lactate were measured. Urine samples (90 ml) were collected between 30-180 minutes post 5 km time-trial and analysed for salbutamol concentration. There was no significant difference in total 5 km time between treatments (PLA 1714.7 ± 186.2 s; SAL800 1683.3 ± 179.7 s; SAL1600 1683.6 ± 190.7 s). Post 5 km time-trial salbutamol urine concentration between SAL800 (122.96 ± 69.22 ug·ml(-1)) and SAL1600 (574.06 ± 448.17 ug·ml(-1)) were not significantly different. There was no improvement in 5 km time-trial performance following the inhalation of up to 1600 µg of salbutamol in non-asthmatic athletes. This would suggest that the current WADA guidelines, which allow athletes to inhale up to 1600 µg per day, is sufficient to avoid pharmaceutical induced performance enhancement. Key pointsInhaling up to 1600 µg of Salbutamol does not result in improved 5 km time trial performance.The position of Salbutamol on the World Anti-Doping Agency list of prohibited appears justified.Athletes who use up to 1600 µg Salbutamol in one day need to review their therapy as it would suggest their respiratory condition is not under control

Studying the magnetized ISM with all-sky polarimetric radio maps

Synchrotron radiation from the interstellar medium (ISM) of our galaxy dominates the sky brightness at low radio frequencies, and carries information about relativistic and thermal electron distributions across a range of astrophysical environments. The polarization of the radiation, as modified by Faraday rotation effects in the ISM, also contains extensive information about the magnetic field. Comprehensive all-sky broadband mapping of this radiation, when combined with high frequency radio data, gamma ray data, cosmic ray (CR) measurements and sophisticated modeling, can revolutionize our understanding of the ISM and the processes that influence its evolution. Current widefield imagery of the galactic synchrotron emission is heterogeneous in frequency coverage, sky coverage, angular resolution and calibration accuracy, limiting utility for ISM studies. A new generation of all-digital low frequency array technologies is opening a path to matched resolution, high fidelity polarimetric imaging across a fully sampled swath of radio frequencies from a few tens to many hundreds of MHz, generating a transformational dataset for a broad range of scientific applications

The Effect of 400 µg Inhaled Salbutamol on 3 km Time Trial Performance in a Low Humidity Environment

The Objectives of the study were to investigate whether 400 µg inhaled salbutamol influences 3 km running time-trial performance and lung function in eucapnic voluntary hyperpnoea positive (EVH+ve) and negative (EVH-ve) individuals. Fourteen male participants (22.4 ± 1.6yrs; 76.4 ± 8.7kg; 1.80 ± 0.07 m); (7 EVH+ve; 7 EVH-ve) were recruited following written informed consent. All participants undertook an EVH challenge to identify either EVH+ve (?FEV1>10%) or EVH-ve (?FEV110% from baseline) in FEV1 following any time-trial. Administration of 400µg inhaled salbutamol does not improve 3 km time-trial performance in either mild EVH+ve or EVH–ve individuals despite significantly increased HR and FEV1

The Impact of Environmental Tobacco Smoke Exposure on Cardiorespiratory Fitness in Children: A Pilot Study

Environmental tobacco smoke (ETS) in indoor air is a substantial risk factor for many health issues. Children are particularly susceptible to ETS with increased risk of asthma attacks, respiratory infections and sudden infant death syndrome. The health effects of ETS are well researched in adults, but few studies examine the impact on children’s cardiorespiratory fitness (CRF). CRF has been shown to be a useful biomarker for monitoring health effects which would normally be too subtle to identify at rest. In adults, ETS has been shown to reduce CRF, and children may be at greater risk due to high respiration rates and developing organs. This preliminary research tests the hypothesis that ETS has a detrimental impact on CRF in children. Twenty-five children (9–11 years) from one Merseyside primary school were recruited. ETS exposure was determined by parental surveys and coupled with children’s exhaled carbon monoxide concentration. CRF was determined using a VO2 peak test, with lung function assessed using standard spirometry, and fractional exhaled nitric oxide (FeNO) provided an indication of lung inflammation. Initial results show that children exposed to ETS had statically lower CRF scores (p = 0.048) and were more likely to be classified as ‘unfit’ compared to children not exposed. A negative correlation was found between the number of cigarettes smoked at home and children’s CRF (r = −0.526, p = 0.008), suggesting a possible dose–response relationship. Spirometry and FeNO values were not statistically different between groups. Results indicate that ETS exposure is likely to be detrimental to children’s CRF. They highlight the need for further work, on a larger dataset that will allow more robust analysis with greater statistical power. To the author’s knowledge, this study is the first of its kind to use laboratory-based fitness measurements to explore associations between ETS and CRF in childre

The Long-Term Ergogenic Effect of Long Acting ?2-Agonists

Background: The WADA List of Banned Substances and Methods stipulates that athletes can use up to 54 µg inhaled Formoterol and inhaled Salmeterol as directed by the manufacturer. It is unknown whether large daily therapeutic doses of Formoterol and Salmeterol can improve sprint and strength performance. Purpose: To investigate the impact of inhaling 100 µg of Salmeterol (SAL) or 12 µg of Formoterol (FOR) twice daily over a 5 week period on sprint, strength and power performance. Methods: In a randomised single blind study 24 male and 15 female non-asthmatic and active participants were recruited (mean ± SD; Males age 28.0 ± 5.5 years; weight 72.1 ± 10.5 Kg; height 164.7 ± 7.1 cm; Females age 24.1 ± 4.1 years; weight 65.4 ± 9.5 Kg; height 168.0 ± 4.3 cm). Participants completed three standardised whole body strength and power training sessions per week for five weeks. All the training sessions were supervised by a personal trainer who recorded work performed in each session. During the five week training period participants were assigned to either SAL, FOR or a placebo (PLA) group. Participants took their inhaler twice per day as instructed. Participants completed assessments of sprint, strength and power at week 0 and after 5 weeks of strength and power training. The assessments included 30 m sprint, vertical jump, 1 RM bench press, 1 RM leg press, peak torque flexion and extension, anthropometric evaluation and Rest-Q questionnaires. Mixed Model Repeated Measures ANOVA were performed to investigate the changes in the sprint, strength and power assessments between groups over the course of the 5 week training session. Results: 30 m Sprint time was significantly lower in FOR group (– 0.29 ± 0.11 s; p=0.049) and SAL (– 0.35 ± 0.05 s; p=0.04) when compared with compared with Placebo (+0.01 ± 0.11 s; P=0.000). No significant change was found in 1RM Leg, Squat and Bench Press or during Isokinetic evaluation performed at 60° range in flex/ext movement. Jump performance as well as anthropometric measures didn’t differ between groups. Discussion: The significant changes in FOR and SAL 30m sprint time when compared to PLA suggest the long term use of inhaled ?2-agonnists may provide ergogenic advantage. This finding suggests a review of the use of inhaled doses of FOR and SAL by athletes in training and official competition may be necessary

Superhumps in Cataclysmic Binaries. XXIII. V442 Ophiuchi and RX J1643.7+3402

We report the results of long observing campaigns on two novalike variables: V442 Ophiuchi and RX J1643.7+3402. These stars have high-excitation spectra, complex line profiles signifying mass loss at particular orbital phases, and similar orbital periods (respectively 0.12433 and 0.12056 d). They are well-credentialed members of the SW Sex class of cataclysmic variables. Their light curves are also quite complex. V442 Oph shows periodic signals with periods of 0.12090(8) and 4.37(15) days, and RX J1643.7+3402 shows similar signals at 0.11696(8) d and 4.05(12) d. We interpret these short and long periods respectively as a "negative superhump" and the wobble period of the accretion disk. The superhump could then possibly arise from the heating of the secondary (and structures fixed in the orbital frame) by inner-disk radiation, which reaches the secondary relatively unimpeded since the disk is not coplanar. At higher frequencies, both stars show another type of variability: quasi-periodic oscillations (QPOs) with a period near 1000 seconds. Underlying these strong signals of low stability may be weak signals of higher stability. Similar QPOs, and negative superhumps, are quite common features in SW Sex stars. Both can in principle be explained by ascribing strong magnetism to the white dwarf member of the binary; and we suggest that SW Sex stars are borderline AM Herculis binaries, usually drowned by a high accretion rate. This would provide an ancestor channel for AM Hers, whose origin is still mysterious.Comment: PDF, 41 pages, 4 tables, 16 figures; accepted, in press, to appear December 2002, PASP; more info at http://cba.phys.columbia.edu