Stationary micropolar fluid with boundary data in L2

AbstractWe consider the Dirichlet boundary value problem for the equations of a stationary micropolar fluid in a bounded three-dimensional domain. We show the existence and uniqueness of a distributional solution with boundary values in L2

Pierwsze doświadczenia z dwujamowymi stymulatorami firmy Medtronic objętymi alertem bezpieczeństwa

Introduction. Medtronic released a subset of dual chamber pacemakers that are suspected of a software error that can result in a lack of pacing. The Food and Drug Administration has deemed a class I recall. Material and methods. Medtronic advise reprogramming for patients with susceptible mode to non-susceptible pacing modes that are: DVI, DVIR, DOO(R), VVI, VVIR, VOO(R), VVT, AAI, AAIR, AOO(R), AAT, OVO. Results. 48 patients received an atrioventricular recalled device. Initially the DDD/DDDR mode was programmed in 44 patients and VVI/VVIR mode in the other four patients. The atrial and ventricular lead parameters such as pacing threshold, sensing threshold and impedance were within normal ranges. Pacemaker dependency in atria concerned 16/48 (33.33%) patients and in ventricles 13/48 (27.1%) patients. Three patients complained of fatigue, dizziness and near syncope. In 24 patients, devices were reprogrammed: in 17 (35.41%) patients to the DVIR mode and in seven (14.58%) patients to the VVI(R) mode. Two patients chose to be reprogrammed to the DDDR mode because of intolerance to non-susceptible pacing modes. Conclusions. Only three patients experienced symptoms that may be associated with pacemaker dysfunction; in 24/48 patients we programmed safety mode DVI(R) or VVI(R). The pacemaker dependency concerned almost 33.33% of patients.Wstęp. Firma Medtronic wypuściła na rynek grupę przedsionkowo-komorowych stymulatorów podejrzanych o błąd oprogramowania, który może prowadzić do wstrzymania stymulacji. Agencja ds. Żywności i Leków objęła powyższe urządzenia alertem klasy pierwszej. Materiały i metody. Firma Medtronic zaleca zmianę programu u chorych stymulowanych w trybie podatnym na wystąpienie błędu na tryb niepodatny, czyli: DVI, DVIR, DOO(R), VVI, VVIR, VOO(R), VVT, AAI, AAIR, AOO(R), AAT, OVO. Wyniki. Przedsionkowo-komorowy stymulator objęty obecnie alertem wszczepiono 48 chorym. U 44 pacjentów począt­kowo występował tryb DDD/DDDR, natomiast u 4 pacjentów — VVI/VVIR. Parametry elektrod, takie jak próg stymulacji, amplituda sygnału czy oporność, pozostawały w granicach normy. Zależność od stymulatora w przedsionkach dotyczyła 16 spośród 48 (33,33%) pacjentów, natomiast w komorach — 13 spośród 48 (27,1%) chorych. U 3 osób wystąpiły zmęczenie, zawroty głowy, prawie omdlenie. U 24 chorych stymulatory przeprogramowano w tryb bezpieczny — u 17 (35,41%) pacjentów w tryb DVIR, a 7 (14,58%) chorych w tryb VVI(R). Dwóch chorych zdecydowało o powrocie do trybu DDDR z powodu nietolerancji trybów niepodatnych na wystąpienie błędu. Wnioski. Trzech pacjentów doświadczyło objawów, które mogą się wiązać z dysfunkcją stymulatora, u 24 z 48 chorych zaprogramowano tryb bezpieczny [DVI(R) lub VVI(R)]. Stymulatorozależność dotyczyła 33,3% chorych

Genetic Variability of Show Jumping Attributes in Young Horses Commencing Competing

The aim of the study was to select traits that may constitute a prospective criterion for breeding value prediction of young horses. The results of 1,232 starts of 894 four-, five-, six-, and seven-year-old horses, obtained during jumping championships for young horses which had not been evaluated in, alternative to championships, training centres were analyed. Nine traits were chosen of those recorded: ranking in the championship, elimination (y/n), conformation, rating of style on day one, two, and three, and penalty points on day one, two, and three of a championship. (Co)variance components were estimated via the Gibbs sampling procedure and adequate (co)variance component ratios were calculated. Statistical classifications were trait dependent but all fitted random additive genetic and permanent environment effects. It was found that such characteristics as penalty points and jumping style are potential indicators of jumping ability, and the genetic variability of the traits was within the range of 14% to 27%. Given the low genetic correlations between the conformation and other results achieved on the parkour, the relevance of assessment of conformation in four-years-old horses has been questioned

The 42nd Symposium Chromatographic Methods of Investigating Organic Compounds : Book of abstracts

The 42nd Symposium Chromatographic Methods of Investigating Organic Compounds : Book of abstracts. June 4-7, 2019, Szczyrk, Polan