29 research outputs found
Uma defesa do princípio ontológico: Whitehead e a ontologia orientada a objetos
Este artigo visa a construção de um acoplamento estrutural entre a Filosofia Orientada a Objetos e a Filosofia do Organismo de Whitehead, defendendo a primazia do princípio ontológico através da proposta da hipótese do objeto social. O objeto social aqui difere das interpretações tradicionais da sociologia, centradas na atividade e na personalidade dos humanos, por meio da recuperação da teoria social das associações de Tarde. Esta teoria nos provê uma leitura não-antropocêntrica da sociabilidade. Essa hipótese será reforçada pela introdução da categoria sistêmica de interno/externo, ou sistema/ambiente, como uma característica de autofechamento dos objetos sociais. Equipados com essas duas noções, discutiremos o artigo de Graham Harman “Whitehead and Schools X, Y, and Z”, enquanto redirecionamos suas avaliações para nossa própria hipótese de objeto social. A ideia final é propor uma aliança através da concepção de uma abordagem macro-ontológica da Filosofia do Organismo. Pretendemos mostrar que isso não é apenas coerentemente viável em relação ao próprio esquema categórico de Whitehead, mas também atende aos requisitos de ser um objeto real nas diretrizes da Ontologia Orientada a Objetos
Monitoring Online Operating Fuel Management System
Online fuel station management system makes it easy to manage their work systematically. We used the mern stack to develop this system. In this web application admin can log in to the system and manage functions like employee management, fuel management, order management, inventory management, weekly fuel queue management, supply fuel management, payment management, and vehicle management. Only the admin can log in to the system. Admin can add employee profiles, and employee can see their profile. Also, the user can create a fuel pass and log in to the fuel pass page. Users can see relevant fuel passes and qr codes. They can download and print fuel passes, and users can see how many fuel liters they can get. Users can also order special fuel orders and see order status. In vehicle management, the admin can manage vehicles. Also, the user can see fuel details and new prices. Admin manages inventory and storage of fuel tanks. Also, admin and user are very easy to use in this system
Area-weighted unipolar voltage to predict heart failure outcomes in patients with ischaemic cardiomyopathy and ventricular tachycardia
Aims Patients with ischaemic cardiomyopathy (ICM) referred for catheter ablation of ventricular tachycardia (VT) are at risk for end-stage heart failure (HF) due to adverse remodelling. Local unipolar voltages (UV) decrease with loss of viable myocardium. A UV parameter reflecting global viable myocardium may predict prognosis. We evaluate if a newly proposed parameter, area-weighted unipolar voltage (awUV), can predict HF-related outcomes [HFO; HF death/left ventricular (LV) assist device/heart transplant] in ICM. Methods and results From endocardial voltage maps of consecutive patients with ICM referred for VT ablation, awUV was calculated by weighted interpolation of local UV. Associations between clinical and mapping parameters and HFO were evaluated and validated in a second cohort. The derivation cohort consisted of 90 patients [age 68 +/- 8 years; LV ejection fraction (LVEF) 35% interquartile range (IQR) (24-40)] and validation cohort of 60 patients [age 67 +/- 9, LVEF 39% IQR (29-45)]. In the derivation cohort, during a median follow-up of 45 months [IQR (34-83)], 36 (43%) patients died and 23 (26%) had HFO. Patients with HFO had lower awUV [4.51 IQR (3.69-5.31) vs. 7.03 IQR (6.08-9.2), P < 0.001]. A reduction in awUV [optimal awUV (5.58) cut-off determined by receiver operating characteristics analysis] was a strong predictor of HFO (3-year HFO survival 97% vs. 57%). The cut-off value was confirmed in the validation cohort (2-year HFO-free survival 96% vs. 60%). Conclusion The newly proposed parameter awUV, easily available from routine voltage mapping, may be useful at identifying ICM patients at high risk for HFO.[GRAPHICS]Metabolic health: pathophysiological trajectories and therap
Electroanatomical Voltage Mapping to Distinguish Right-Sided Cardiac Sarcoidosis From Arrhythmogenic Right Ventricular Cardiomyopathy
OBJECTIVES This study sought to investigate the value of electroanatomical voltage mapping (EAVM) to distinguish cardiac sarcoidosis (CS) from arrhythmogenic right ventricular cardiomyopathy (ARVC) in patients with ventriculartachycardia from the right ventricle (RV).BACKGROUND CS can mimic ARVC. Because scar in ARVC is predominantly subepicardial, this study hypothesized that the relative sizes of endocardial low bipolar voltage (BV) to low unipolar voltage (UV) areas may distinguish CS from ARVC.METHODS Patients with CS affecting the RV (n = 14), patients with gene-positive ARVC (n = 13), and a reference group of patients without structural heart disease (n = 9) who underwent RV endocardial EAVM were included. RV regionspecific BV and UV cutoffs were derived from control subjects. In CS and ARVC, segmental involvement was determined and low-voltage areas were measured, using RESULTS In control subjects, BV and UV varied significantly among RV regions. The basal septum was involved in 71% of CS patients and in none of ARVC patients. Ratio5.5 discriminated CS from ARVC the best. An algorithm including Ratio5.5≥0.45 and basal septal involvement identified CS with 93% sensitivity and 85% specificity. This was validated in a separate population (CS [n = 6], ARVC [n = 10]) with 100% sensitivity and 100% specificity.CONCLUSIONS EAVM provides detailed information about scar characteristics and scar distribution in the RV. An algorithm combining Ratio5.5 (area BV Cardiolog
Antimicrobial and antioxidant activity of essential oil and different plant extracts of Psidium cattleianum Sabine
Synthesis, characterization and ethanol vapor sensing performance of SnO2/Graphene composite film
Eficiência Energética no Campus Central da Pontifícia Universidade Católica do Rio Grande do Sul – PUCRS
Twelve lead ecg criteria applied to clinically documented ventricular tachycardias to identify patients who are likely to benefit from epicardial ablation
Cardiolog
