Results 41 to 50 of about 41,413,073 (198)

Ambient PM2.5 and risk of emergency room visits for myocardial infarction: impact of regional PM2.5 oxidative potential: a case-crossover study

Environmental Health, 2016
BackgroundRegional differences in the oxidative potential of fine particulate air pollution (PM2.5) may modify its impact on the risk of myocardial infarction.MethodsA case-crossover study was conducted in 16 cities in Ontario, Canada to evaluate the ...
S. Weichenthal, É. Lavigne, G. Evans, K. Pollitt, R. Burnett   +4 more
semanticscholar   +1 more source

Considerations for crossover design in clinical study

Korean Journal of Anesthesiology, 2021
This article introduces a crossover design that is often used in clinical studies, with the advantage of comparing treatment effects within one study subject.
C. Lim, J. In
semanticscholar   +1 more source

Effects of Dust Event Days on Influenza: Evidence from Arid Environments in Lanzhou

Aerosol and Air Quality Research, 2022
Airborne aerosol is believed to be an important pathway for infectious disease transmissions like COVID-19 and influenza. However, the effects of dust event days on influenza have been rarely explored, particularly in arid environments.
Ling Zhang, Sheng Li, Bo Wang, Ce Liu, Li He, Xiaobing Shan, Kai Zhang, Bin Luo   +7 more
doaj   +1 more source

Dental procedures, antibiotic prophylaxis, and endocarditis among people with prosthetic heart valves: nationwide population based cohort and a case crossover study

British medical journal, 2017
Objective To assess the relation between invasive dental procedures and infective endocarditis associated with oral streptococci among people with prosthetic heart valves. Design Nationwide population based cohort and a case crossover study.
S. Tubiana, P. Blotière, B. Hoen, P. Lesclous, S. Millot, J. Rudant, A. Weill, J. Coste, F. Alla, X. Duval   +9 more
semanticscholar   +1 more source

Inspiratory Flow Parameters Through Dry Powder Inhalers in Healthy Volunteers and Patients with Chronic Obstructive Pulmonary Disease (COPD): Device Resistance Does Not Limit Use in COPD

International Journal of COPD, 2021
Rain Jõgi,1 Leena Mattila,2 Mikko Vahteristo,3 Aino Takala,2 Satu Lähelmä,4 Ville A Vartiainen,2 Ari Lindqvist5 1Tartu University Hospital, Lung Clinic, Tartu, Estonia; 2Medical Affairs, Orion Corporation, Espoo, Finland; 3Research Unit ...
Jõgi R, Mattila L, Vahteristo M, Takala A, Lähelmä S, Vartiainen VA, Lindqvist A   +6 more
doaj  

Dimensional crossover in quantum critical metallic magnets

, 2009
Nearly magnetic metals often have layered lattice structures, consisting of coupled planes. In such a situation, physical properties will display, upon decreasing temperature or energy, a dimensional crossover from two-dimensional (2d) to three ...
A. I. Larkin, A. I. Larkin, Achim Rosch, Lars Fritz, Markus Garst, Matthias Vojta, P. Gegenwart, S. Sachdev, T. Moriya   +8 more
core   +1 more source

A single dose of cannabidiol reduces blood pressure in healthy volunteers in a randomized crossover study.

JCI Insight, 2017
BACKGROUND Cannabidiol (CBD) is a nonpsychoactive phytocannabinoid used in multiple sclerosis and intractable epilepsies. Preclinical studies show CBD has numerous cardiovascular benefits, including a reduced blood pressure (BP) response to stress.
K. Jadoon, G. Tan, S. O’Sullivan
semanticscholar   +1 more source

Universal power law in crossover from integrability to quantum chaos

, 2013
We study models of interacting fermions in one dimension to investigate the crossover from integrability to non-integrability, i.e., quantum chaos, as a function of system size. Using exact diagonalization of finite-sized systems, we study this crossover
Modak, Ranjan, Mukerjee, Subroto, Ramaswamy, Sriram   +2 more
core   +1 more source

Consumption of a diet rich in Brassica vegetables is associated with a reduced abundance of sulphate‐reducing bacteria: A randomised crossover study

Molecular Nutrition & Food Research, 2017
Scope We examined whether a Brassica‐rich diet was associated with an increase in the relative abundance of intestinal lactobacilli and sulphate‐reducing bacteria (SRB), or alteration to the composition of the gut microbiota, in healthy adults.
L. Kellingray, H. Tapp, S. Saha, J. Doleman, A. Narbad, R. Mithen   +5 more
semanticscholar   +1 more source

Crossover phenomena in spin models with medium-range interactions and self-avoiding walks with medium-range jumps

, 2001
We study crossover phenomena in a model of self-avoiding walks with medium-range jumps, that corresponds to the limit $N\to 0$ of an $N$-vector spin system with medium-range interactions.
A. D. Sokal, A. D. Sokal, A. J. Guttmann, A. Kostrowicka Wyczalkowska, A. Pelissetto, A. Pelissetto, A. Pelissetto, A. Pelissetto, A. R. Conway, A. R. Conway, B. G. Nickel, B. G. Nickel, B. G. Nickel, B. Li, B. Nienhuis, B. Nienhuis, C. Aragão de Carvalho, C. Bagnuls, C. Bagnuls, C. Bagnuls, C. Bagnuls, C. Domb, D. MacDonald, E. Brézin, E. Luijten, E. Luijten, E. Luijten, E. Luijten, E. Luijten, E. Luijten, E. Luijten, E. Luijten, F. Jasch, G. A. Baker, Jr., G. A. Baker, Jr., G. Besold, G. Orkoulas, G. Parisi, G. Parisi, G. Parisi, G. R. Golner, G. X. Jin, H. J. Krause, H. Kleinert, H. Kleinert, H. Saleur, H. Yamakawa, I. Guim, J. C. Le Guillou, J. des Cloizeaux, J. des Cloizeaux, J. F. Douglas, J. F. Douglas, J. F. Nicoll, J. Magnen, J. Magnen, J. P. Eckmann, J. S. Feldman, J. S. Kouvel, J. S. Pedersen, K. Binder, K. E. Newman, K. G. Chetyrkin, K. K. Mon, L. Lue, L. N. Lipatov, L. Schäfer, M. A. Anisimov, M. A. Anisimov, M. A. Anisimov, M. A. Anisimov, M. Caselle, M. Daoud, M. Muthukumar, M. Muthukumar, M. Y. Belyakov, N. Eizenberg, N. Eizenberg, N. Madras, P. Butera, P. Butera, P. Calabrese, P. G. de Gennes, P. G. de Gennes, P. Grassberger, P. Grassberger, P. Grassberger, R. Guida, R. Schloms, S. B. Kiselev, S. B. Kiselev, S. Caracciolo, S. Caracciolo, S. Caracciolo, S. Caracciolo, S. Caracciolo, V. A. Agayan, V. Dohm, V. Dohm, V. J. Emery, V. L. Ginzburg, W. H. Stockmayer, W. H. Stockmayer, Z. Alexandrowicz, Z. Alexandrowicz, Z. Y. Chen, Z. Y. Chen, Z. Y. Chen, Z. Y. Chen   +108 more
core   +1 more source