BACKGROUND Although trials of lifestyle interventions generally focus on cardiovascular disease risk factors rather than hard clinical outcomes, 10-year coronary heart disease (CHD) risk can be estimated from the Framingham risk equations. Our objectives were to study the effect of 2 multicomponent lifestyle interventions on estimated CHD risk relative to advice alone and to evaluate whether di...

Spectral properties of sign symmetric matrices are studied. A criterion for sign symmetry of shifted basic circulant permutation matrices is proven, and is then used to answer the question which complex numbers can serve as eigenvalues of sign symmetric 3 × 3 matrices. The results are applied in the discussion of the eigenvalues of QM -matrices. In particular, it is shown that for every positiv...

We consider classes of models related to those introduced by Lehmann in 1953 and Sklar in 1959. Recently developed algorithms for finding profile NP likelihood procedures are discussed, extended and implemented for such models by combining them with the MM algorithm. In particular we consider statistical procedures for a regression model with proportional expected hazard rates, and for transfor...

Gravity models are widely used to explain patterns of trade. However, two stylized features of trade data, sample selection and heteroskedasticity, challenge the estimation of gravity models. We propose a Two-Step Method of Moments (TS-MM) estimator that deals with both issues. The Monte-Carlo experiments show that the TS-MM estimates are resistant to various combinations of sample selection an...

Abstract Background Community-acquired pneumonia (CAP) is the principal cause of mortality due to infectious diseases globally. Some risk factors have been identified for CAP, such as age, smoking, environmental exposures, malnutrition, previous chronic bronchitis/chronic obstructive pulmonary disease (COPD), asthma, functional impairment, poor dental health, and immunosuppressive therapy, amon...

BACKGROUND & OBJECTIVE Laser hair removal has become an increasingly popular method to remove unwanted or excessive hair. We have assessed the relative efficacy and discomfort associated with competing hair removal techniques, namely a high average power 810 nm diode laser using an “in-motion” technique with a market-leading 810 nm device with a single-pass vacuum-assisted technique. This study...

Introduction: Food allergy is an immune-mediated hypersensitivity to allergens in food. This allergy affects about 6-8% of children younger than three years, about 4% of school-age children and about 2% of the adult population in the world. Aim: To investigate the prevalence of food allergies in the population of preschool children from the city of Osijek and to identify the most common causes ...

Kókai Sándor: Bánság: természet, társadalom, gazdaság (1718‒2021) – Tanulmánygyűjtemény. Nyíregyháza‒Kiszombor: MTA Társadalomföldrajzi Tudományos Bizottság Történeti Földrajzi Albizottsága, 2022. 810 oldal