108 research outputs found
Using machine learning to speed up new and upgrade detector studies: a calorimeter case
In this paper, we discuss the way advanced machine learning techniques allow
physicists to perform in-depth studies of the realistic operating modes of the
detectors during the stage of their design. Proposed approach can be applied to
both design concept (CDR) and technical design (TDR) phases of future detectors
and existing detectors if upgraded. The machine learning approaches may speed
up the verification of the possible detector configurations and will automate
the entire detector R\&D, which is often accompanied by a large number of
scattered studies. We present the approach of using machine learning for
detector R\&D and its optimisation cycle with an emphasis on the project of the
electromagnetic calorimeter upgrade for the LHCb detector\cite{lhcls3}. The
spatial reconstruction and time of arrival properties for the electromagnetic
calorimeter were demonstrated.Comment: Talk presented on CHEP 2019 conferenc
Arrhythmic Mitral Valve Prolapse: New Menaces of the Known Disease
Mitral valve prolapse (MVP) has long been the subject of intense discussions regarding the prognosis and follow-up tactics. In most cases, this condition has a benign prognosis. However, recent autopsy and follow-up studies have shown risks of developing sudden cardiac death (SCD) in some subgroups of patients who have this clinical phenomenon. The proposed literature review uses the population of patients with MVP with the highest probability of developing life-threatening ventricular tachyarrhythmias. Patients with the presence of a complex of changes, including bicuspid MVP, negative T waves in the inferior and lateral leads on a standard 12-lead electrocardiogram (ECG), and a special anatomical phenomenon called mitral annular disjunction (MAD), are at high risk of developing ventricular ectopias and VSS. A reflection of the high risk of SCD in such patients is the increase of ventricular ectopy according to Holter monitoring. The presence of a bicuspid MVP and the MAD phenomenon, which is a separation of the line of attachment of the posterior mitral leaflet from the basal inferior wall segment towards the atrial wall, determines the presence of a special form of MVP, the so-called arrhythmogenic MVP. Hence, in most cases MVP has a benign prognosis. However, patients with the aforementioned ar- rhythmic MVP signs must be given particular attention and annual follow-up including ECG control, Holter monitoring and echocardiographic examination of the heart to reduce the risk of ventricular tachyarrhythmias and SCD development
SAFETY OF AMIODARONE USAGE IN PATIENTS WITH WOLFF-PARKINSON-WHITE SYNDROME AND ATRIAL FIBRILLATION
Amiodarone is one of the basic antiarrhytmic drugs for atrial fibrillation treatment. However application of amiodarone in patients with atrial fibrillation and Wolff-Parkinson-White syndrome can induce ventricular fibrillation. Amiodarone usage in these patients should be accompanied by readiness for performance of resuscitation. This is confirmed by clinical case presentation
PROGNOSTIC VALUE OF PATHOLOGIC Q-WAVE AND TIME OF ITS APPEARANCE IN PATIENTS WITH MYOCARDIAL INFARCTION: COMPARISON STUDY
Aim. To evaluate short- and long-term prognosis of myocardial infarction (MI) depending on occurrence of pathologic Q-wave on ECG and time of its appearance.Material and methods. 616 patients with initial ST-elevated MI were included into the study — 254 women and 362 men, aged 62.1±11.2. All patients were split up three groups depending on occurrence of pathologic Q-wave on ECG and time of its appearance. First group consisted of 311 patients with early Q-wave (during first 6 hours from onset of MI symptoms). Second group consisted of 120 patients with late Q-wave (from 6 to 24 hours from onset of MI symptoms). Third group consisted of 185 patients with non-Q-wave MI.Results. The hospital lethality in the patients with early Q-wave was significantly higher than this in patients of the second and the third groups. However, we didn’t reveal significant differences between patients with late Q-wave and patients without Q-wave on ECG. The incidences of cardiac death (sudden death and fatal MI), non-fatal MI and hospitalization because of unstable angina was assessed during next two years. During the follow-up period patients of three groups had similar incidences of the non-fatal MI and hospitalization because of unstable angina. However, incidence of cardiac death was significantly higher in early Q-wave group in comparison with non-Q-wave group.Conclusion. Occurrence of pathologic Q-wave on ECG and time of its appearance should be taken into account to assessed short- and long-term prognosis of MI
Assessment of Adherence to Treatment and Factors Affecting it in Patients with Stable Ischemic Heart Disease during Therapy with Nicorandil.
The First Results of the Evaluation of Long-Term Nicorandil Treatment Effect on the Probability of Cardiovascular Complications in Patients with Stable Coronary Artery Disease (Data of Observational NIKEA Study).
Projektowanie rozmieszczenia jednostek straży pożarnej na obszarach zamieszkanych z wykorzystaniem Systemu Informacji Geograficznej
The mathematical model to determine the required number of operational fire departments to protect settlements from fires was described. The authors of the study describe the results of automated GIS design, which is aimed at planning of activities and resource equipment for operational fire departments in settlements. The structure and functionality of the system were presentedW artykule opisano model matematyczny służący do określenia niezbędnej liczby jednostek operacyjnych służby pożarniczej potrzebnych do skutecznej ochrony przeciwpożarowej obszarów zamieszkanych. Przedstawione zostały wyniki zautomatyzowanego Systemu Informacji Geograficznej do planowania działań i określania wyposażenia jednostek operacyjnych służby pożarniczej chroniących obszary zamieszkane. W artykule autorzy prezentują strukturę systemu i jego funkcjonalne możliwości
DIAGNOSTICS AND TREATMENT OF MITRAL VALVE PROLAPSE
The mitral valve prolapse (MVP) is one of the most inconsistent diagnose. In the most cases patients with MVP have the good long-term prognosis, and therapy is aimed at reduction in psychovegetative dysfunction. Careful follow-up and timely cardiosurgical correction should be performed, if necessary, in patients with classical MPV. The choice method in these cases is the mitral valve plasty
Victory Over the Sun
general view, performance at Brooklyn Academy of Art; sets and costumes by Kazimir Malevic
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