An old chestnut well cracked

Repeated Columns and an Old Chestnut

Let t > 1 be a given integer. Let F be a family of subsets of [m] = {1, 2, . . . ,m}. Assume that for every pair of disjoint sets S, T ⊂ [m] with |S| = |T | = k, there do not exist 2t sets in F where t subsets of F contain S and are disjoint from T and t subsets of F contain T and are disjoint from S. We show that |F| is O(mk). Our main new ingredient is allowing, during the inductive proof, mu...

Pulmonary congestion in hemodialysis: an old chestnut worth screening for?

It is well documented that pulmonary congestion is common among patients undergoing treatment with hemodialysis, and recent evidence suggests a strong association with mortality (1–4). The cyclical, and very predictable, nature of each hemodialysis session carries several major risks that may compromise cardiorespiratory function and threaten the patient’s well-being (5). Onemajor consequence i...

Shadows in a Cracked Mirror: The Spectre in The Well of Loneliness

Behavior of cracked materials

Abstract. Due to their microstructure, quasi brittle materials present rough cracks. Under sliding of the crack lips, this roughness involves in one hand induced opening and in the other hand some apparent plasticity which is due to the interlocking of the crack lips combined with Coulomb’s friction. The proposed model is written under the irreversible thermodynamics framework. Micromechanics u...

The Old Adults’ Emotional Wellness and Spiritual Well-being with an Emphasis on Physical Activity during COVID-19 Pandemic

Background and Purpose: COVID-19 pandemic is a challenge for improving health during the lockdown. Unfortunately, the concern which is expressed for the welfare and the health of the elderly contradicts the actions undertaken for their health and welfare. The psychological research conducted during the COVID-19 pandemic rarely includes the people over 60 years old. Hence, the purpose of the cur...