The gravitational field of a particle of small mass m moving through curved spacetime, with metric gab, is naturally and easily decomposed into two parts each of which satisfies the perturbed Einstein equations through O(m). One part is an inhomogeneous field hab which, near the particle, looks like the Coulomb m/r field with tidal distortion from the local Riemann tensor. This singular field i...

OBJECTIVES Central nervous system haemangioblastoma (HAB) is a major feature of von Hippel-Lindau (VHL) disease, and it is estimated that about 30% of HAB patients have VHL disease. Consequently, it is widely recommended that sporadic HAB patients are screened for clinical and radiological features of VHL disease because of the risk of multiple tumours. We investigated the frequency of VHL germ...

We established mouse models of extremes in trait anxiety, which are based on selective breeding for low vs. normal vs. high open-arm exploration on the elevated plus-maze. Genetically selected low anxiety-related behavior (LAB) coincided with hyperactivity in the home cage. Given the fact that several psychiatric disorders such as schizophrenia, mania, and attention deficit hyperactivity disord...

A point particle of mass μ moving on a geodesic creates a perturbation hab, of the spacetime metric gab, that diverges at the particle. Simple expressions are given for the singular μ/r part of hab and its distortion caused by the spacetime. This singular part hS ab is described in different coordinate systems and in different gauges. Subtracting hS ab from hab leaves a regular remainder h R ab...

The strength ratio between hamstrings and quadriceps (H/Q) is associated with knee injuries as well as hip abductor muscle (HAB) weakness. Sixteen resistance trained men (age, 32.5 ± 4.2 years) performed 5 s maximal isometric contractions at 75° of knee flexion/extension and 15° of hip abduction on a dynamometer. After this isometric test they performed a Farmer's walk exercise to find out if t...

In this study, we develop a framework for measuring the value of harmful algal bloom (HAB) predictions. The framework captures the effects of both private and public responses to HABs. Using data from the New England nearshore commercial shellfish fishery and impact estimates for a large-scale HAB event in 2005, we illustrate how the potential value of HAB forecasts may be estimated. The result...

Prof. Roman Matykowski urodził się w niełatwych czasach powojennych, 12 marca 1950 r. Poznaniu. Od ponad pół wieku związany jest z Uniwersytetem im. Adama Mickiewicza Poznaniu, gdzie 1974 ukończył studia na kierunku geografia ze specjalnością ekonomiczna Wydziale Biologii i Nauk o Ziemi. Pracę magisterską pt. „Struktura regionalno-administracyjna powiatu Krotoszyn podstawie powiązań usługowych”...

Department of General Surgery, County Health Centre in Kamienna Góra1 Kierownik: dr hab. M. Kruczek Department of Internal Diseases, County Health Centre in Kamienna Góra2 Kierownik: dr hab. r. grabowski Department of Dietetics, Chair of Gastroenterology and Hepatology, Medical University in Wrocław3 Kierownik: prof. dr hab. E. Poniewierka Department of Gastroenterology and Hepatology, Medical ...

As árvores urbanas são fundamentais para a resiliência das cidades. Sua gestão está condicionada às prefeituras, entretanto, muitas delas não têm conhecimento de quantas existem no perímetro urbano, sendo este o ponto inicial manejo. O objetivo desta pesquisa foi desenvolver um modelo estatístico capaz estimar quantidade baseado na população da cidade, criando Índice Mendes Arborização Urbana (...