Search Results - "Orange, Christian"

Activité enseignante et didactiques by Orange, Christian

“…Pourquoi étudier l’activité enseignante ? Certes l’étude de toute activité humaine est intéressante mais en quoi cette étude prend-elle un intérêt particulier…”
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Problematização e conceptualização em ciências e nas aprendizagens científicas by Orange, Christian

“…Problematization is fashinable: it has been invoked a bit everywhere. But does it always mean the same process? This article attempts to explain, based on…”
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Quantitative Protection Factors for Common Masks and Face Coverings by Leith, David, L’Orange, Christian, Volckens, John

“…The performance of masks, whether intended to protect the community from exhaled infectious aerosol or to protect the wearer from inhaled infectious aerosol,…”
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Éducation nutritionnelle et acculturation scientifique : quelles circulations de normes et de savoirs dans les discours adressés aux jeunes ? by Ravachol, Denise Orange, Kovacs, Susan, Orange, Christian

“…Actuellement, des discours multiples parcourent la société en matière d’éducation nutritionnelle. À côté des dispositifs d’intervention institutionnels, des…”
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In-Situ Elemental Composition Analysis of Large Inhalable Aerosol Using Laser Induced Breakdown Spectroscopy by Sipich, James, L’Orange, Christian, Volckens, John, Yalin, Azer

“…The ability to obtain information on the composition of airborne particles is a necessary part of identifying and controlling risks from exposure to…”
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Unequal airborne exposure to toxic metals associated with race, ethnicity, and segregation in the USA by Kodros, John K., Bell, Michelle L., Dominici, Francesca, L’Orange, Christian, Godri Pollitt, Krystal J., Weichenthal, Scott, Wu, Xiao, Volckens, John

“…Persons of color have been exposed to a disproportionate burden of air pollution across the United States for decades. Yet, the inequality in exposure to known…”
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Le concept de représentation en didactique des sciences : sa nécessaire composante épistémologique et ses conséquences by Orange, Christian, Ravachol, Denise Orange

“…Bien que venant de la psychologie, le concept de représentation a nécessairement, en didactique des sciences, une référence épistémologique. Partant du rôle…”
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Open-Path Cavity Ring-Down Spectroscopy for Simultaneous Detection of Hydrogen Chloride and Particles in Cleanroom Environment by Khan, Muhammad Bilal, L'Orange, Christian, Lim, Cheongha, Kwon, Deokhyeon, Yalin, Azer P

“…The present study addresses advanced monitoring techniques for particles and airborne molecular contaminants (AMCs) in cleanroom environments, which are…”
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Size-Resolved Field Performance of Low-Cost Sensors for Particulate Matter Air Pollution by Molina Rueda, Emilio, Carter, Ellison, L’Orange, Christian, Quinn, Casey, Volckens, John

“…Particulate matter (PM) air pollution is a major health hazard. The health effects of PM are closely linked to particle size, which governs its deposition in…”
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Design and performance of UPAS inlets for respirable and thoracic mass sampling by Leith, David, L'Orange, Christian, Mehaffy, John, Volckens, John

“…The Ultrasonic Personal Aerosol Sampler (UPAS) is a small, lightweight, and quiet sampler that collects airborne particulate matter on a filter for gravimetric…”
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Edito - La modélisation des savoirs dans les analyses didactiques des situations d'enseignement et apprentissage by Ligozat, Florence, Orange, Christian

“…Ce dossier est le fruit de plusieurs sessions d’échanges et de travail en atelier qui se sont déroulées dans le cadre des séminaires de l’Association pour des…”
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Bayesian nonparametric monotone regression by Wilson, Ander, Tryner, Jessica, L'Orange, Christian, Volckens, John

“…In many applications there is interest in estimating the relation between a predictor and an outcome when the relation is known to be monotone or otherwise…”
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A Laboratory Assessment of 120 Air Pollutant Emissions from Biomass and Fossil Fuel Cookstoves by Bilsback, Kelsey R, Dahlke, Jordyn, Fedak, Kristen M, Good, Nicholas, Hecobian, Arsineh, Herckes, Pierre, L’Orange, Christian, Mehaffy, John, Sullivan, Amy, Tryner, Jessica, Van Zyl, Lizette, Walker, Ethan S, Zhou, Yong, Pierce, Jeffrey R, Wilson, Ander, Peel, Jennifer L, Volckens, John

“…Cookstoves emit many pollutants that are harmful to human health and the environment. However, most of the existing scientific literature focuses on fine…”
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Application of an Ultra-Low-Cost Passive Sampler for Light-Absorbing Carbon in Mongolia by Bekbulat, Bujin, Agrawal, Pratyush, Allen, Ryan W., Baum, Michael, Boldbaatar, Buyantushig, Clark, Lara P., Galsuren, Jargalsaikhan, Hystad, Perry, L’Orange, Christian, Vakacherla, Sreekanth, Volckens, John, Marshall, Julian D.

“…Low-cost, long-term measures of air pollution concentrations are often needed for epidemiological studies and policy analyses of household air pollution. The…”
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Aerosol emissions from wind instruments: effects of performer age, sex, sound pressure level, and bell covers by Volckens, John, Good, Kristen M., Goble, Dan, Good, Nicholas, Keller, Joshua P., Keisling, Amy, L’Orange, Christian, Morton, Emily, Phillips, Rebecca, Tanner, Ky

“…Aerosol emissions from wind instruments are a suspected route of transmission for airborne infectious diseases, such as SARS-CoV-2. We evaluated aerosol number…”
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Exposure to household air pollution from biomass cookstoves and blood pressure among women in rural Honduras: A cross‐sectional study by Young, Bonnie N., Clark, Maggie L., Rajkumar, Sarah, Benka‐Coker, Megan L., Bachand, Annette, Brook, Robert D., Nelson, Tracy L., Volckens, John, Reynolds, Stephen J., L'Orange, Christian, Good, Nicholas, Koehler, Kirsten, Africano, Sebastian, Osorto Pinel, Anibal B., Peel, Jennifer L.

“…Growing evidence links household air pollution exposure from biomass cookstoves with elevated blood pressure. We assessed cross‐sectional associations of…”
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Large Particle Emissions from Human Vocalization and Playing of Wind Instruments by Tanner, Ky, Good, Kristen M., Goble, Dan, Good, Nicholas, Keisling, Amy, Keller, Kayleigh P., L’Orange, Christian, Morton, Emily, Phillips, Rebecca, Volckens, John

“…Humans emit large salivary particles when talking, singing, and playing musical instruments, which have implications for respiratory disease transmission. Yet…”
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AirPen: A Wearable Monitor for Characterizing Exposures to Particulate Matter and Volatile Organic Compounds by Tryner, Jessica, Quinn, Casey, Molina Rueda, Emilio, Andales, Marie J., L’Orange, Christian, Mehaffy, John, Carter, Ellison, Volckens, John

“…Exposure to air pollution is a leading risk factor for disease and premature death, but technologies for assessing personal exposure to particulate and gaseous…”
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Quantifying the Health Benefits of Face Masks and Respirators to Mitigate Exposure to Severe Air Pollution by Kodros, John K., O’Dell, Katelyn, Samet, Jonathan M., L’Orange, Christian, Pierce, Jeffrey R., Volckens, John

“…Familiarity with the use of face coverings to reduce the risk of respiratory disease has increased during the coronavirus pandemic; however, recommendations…”
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Short-term differences in cardiac function following controlled exposure to cookstove air pollution: The subclinical tests on volunteers exposed to smoke (STOVES) study by Cole-Hunter, Tom, Dhingra, Radhika, Fedak, Kristen M., Good, Nicholas, L'Orange, Christian, Luckasen, Gary, Mehaffy, John, Walker, Ethan, Wilson, Ander, Balmes, John, Brook, Robert D., Clark, Maggie L., Devlin, Robert B., Volckens, John, Peel, Jennifer L.

“…•Limited evidence links household air pollution to cardiac function.•We evaluated impact of 2-h exposures to 5 cookstoves plus 1 control among 48 healthy…”
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