Spherically Restricted Random Hyperbolic Diffusion [PDF]
Entropy, 2020 This paper investigates solutions of hyperbolic diffusion equations in R 3 with random initial conditions. The solutions are given as spatial-temporal random fields. Their restrictions to the unit sphere S 2 are studied. All assumptions are formulated in terms of the angular power spectrum or the spectral measure of the random initial ...
Philip Broadbridge +4 more
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Properties of restricted randomization with implications for experimental design
Journal of Causal Inference, 2022 Recently, there has been increasing interest in the use of heavily restricted randomization designs which enforce balance on observed covariates in randomized controlled trials.
Nordin Mattias, Schultzberg Mårten
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Association between the red blood cell distribution width-to-albumin ratio and risk of colorectal and gastric cancers: a cross-sectional study using NHANES 2005–2018 [PDF]
BMC GastroenterologyBackground The red blood cell distribution width-to-albumin ratio (RAR) is a novel biomarker that concurrently reflects nutritional status and inflammation.
Jie Luo, Peng Zhu, Shiji Zhou
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Exploration of the Interrelationship Between Serum Uric Acid, Gout, and Cardiac, Renal, and Metabolic Conditions in Middle Aged and Older People [PDF]
Journal of the American Heart Association: Cardiovascular and Cerebrovascular DiseaseBackground Cardiac, renal, and metabolic (CRM) conditions are major causes of morbidity and mortality globally. This study aims to explore the relationship between serum uric acid (SUA), hyperuricemia, gout, and CRM conditions in middle‐aged and elderly ...
Yingdong Han +9 more
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Abdominal fat accumulation increases the risk of high blood pressure: evidence of 47,037 participants from Chinese and US national population surveys [PDF]
Nutrition JournalAims This study aims to ascertain whether abdominal fat accumulation evaluated by waist circumference increases the risk of hypertension using the nationwide population.
Jin-Yu Sun +5 more
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On the mean dimensions of restricted random walks [PDF]
Journal of Research of the National Bureau of Standards, Section B: Mathematical Sciences, 1969 Peter H. Verdier, Edmund A. DiMarzio
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Randomization methods and cluster size in cluster randomized trials conducted in elementary and high schools [PDF]
Vojnosanitetski Pregled, 2022 Background/Aim. Randomization allows for study groups to be formed so that they are similar in all characteristics except outcomes. The aim of this study was to examine the frequency of randomization methods and their effect on achieving baseline balance
Pajčin Mirjana +3 more
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A roadmap to using randomization in clinical trials
BMC Medical Research Methodology, 2021 Background Randomization is the foundation of any clinical trial involving treatment comparison. It helps mitigate selection bias, promotes similarity of treatment groups with respect to important known and unknown confounders, and contributes to the ...
Vance W. Berger +13 more
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Random generation with cycle type restrictions [PDF]
Algebraic Combinatorics, 2021 We study random generation in the symmetric group when cycle type restrictions are imposed. Given $ , ' \in S_n$, we prove that $ $ and a random conjugate of $ '$ are likely to generate at least $A_n$ provided only that $ $ and $ '$ have not too many fixed points and not too many $2$-cycles.
Daniele Garzoni, Sean Eberhard
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Trials, 2021 Background and aim Some parallel-group cluster-randomized trials use covariate-constrained rather than simple randomization. This is done to increase the chance of balancing the groups on cluster- and patient-level baseline characteristics.
Ahmed A. Al-Jaishi +5 more
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