2 research outputs found

    Concurrency and Security Control with NTRU

    No full text
    ABSTRACT : Distributed database is the emerging technique that plays an important role, in day to day life, so we focus on concurrency control and security issues under this distributed database. We are going to discuss some techniques like locking but our emphasis is mainly on query redirection. Under which if the particular server gets overloaded with traffic, we put forward the load to another server. In this paper we are going to analyze the NTRU, based Encryption decryption technique for security to Distributed Database System. The NTRU being fast and secure hashing algorithm will provide more security to the system, in terms of throughput and processing speed

    Cardiac Arrest in Spontaneous Subarachnoid Hemorrhage and Associated Outcomes

    No full text
    OBJECTIVE: The authors sought to analyze a large, publicly available, nationwide hospital database to further elucidate the impact of cardiopulmonary arrest (CA) in association with subarachnoid hemorrhage (SAH) on short-term outcomes of mortality and discharge disposition. METHODS: This retrospective cohort study was conducted by analyzing de-identified data from the National (Nationwide) Inpatient Sample (NIS). The publicly available NIS database represents a 20% stratified sample of all discharges and is powered to estimate 95% of all inpatient care delivered across hospitals in the US. A total of 170,869 patients were identified as having been hospitalized due to nontraumatic SAH from 2008 to 2014. RESULTS: A total of 5415 patients (3.2%) were hospitalized with an admission diagnosis of CA in association with SAH. Independent risk factors for CA included a higher Charlson Comorbidity Index score, hospitalization in a small or nonteaching hospital, and a Medicaid or self-pay payor status. Compared with patients with SAH and not CA, patients with CA-SAH had a higher mean NIS Subarachnoid Severity Score (SSS) ± SD (1.67 ± 0.03 vs 1.13 ± 0.01, p \u3c 0.0001) and a vastly higher mortality rate (82.1% vs 18.4%, p \u3c 0.0001). In a multivariable model, age, NIS-SSS, and CA all remained significant independent predictors of mortality. Approximately 18% of patients with CA-SAH survived and were discharged to a rehabilitation facility or home with health services, outcomes that were most predicted by chronic disease processes and large teaching hospital status. CONCLUSIONS: In the largest study of its kind, CA at onset was found to complicate roughly 3% of spontaneous SAH cases and was associated with extremely high mortality. Despite this, survival can still be expected in approximately 18% of patients
    corecore