يعرض 51 - 60 نتائج من 214 نتيجة بحث عن '"Moinuddin Syed"', وقت الاستعلام: 0.92s تنقيح النتائج
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    المصدر: Catheterization and cardiovascular interventions : official journal of the Society for Cardiac AngiographyInterventionsREFERENCES. 99(7)

    الوصف: There is a lack of data on age-stratified sex differences in the incidence, treatment, and outcomes of cardiogenic shock (CS). We sought to study these differences from a contemporary database.Patients admitted with CS (2004-2018) were identified from the United States National Inpatient Sample. We compared CS (acute myocardial infarction-related cardiogenic shock [AMI-CS] and non-acute myocardial infarction-related cardiogenic shock [Non-AMI-CS]) incidence, management, and outcomes in males and females, stratified into four age groups (20-44, 45-64, 65-84, and ≥85 years of age). Propensity score matching (PSM) was used for adjustment.A total of 1,506,281 weighted hospitalizations for CS were included (AMI-CS, 39%; Non-AMI-CS, 61%). Across all age groups, females had a lower incidence of CS compared with males. After PSM and among the AMI-CS cohort, higher mortality among females compared with males was observed in the age groups 45-64 (28.5% vs. 26.3%) and 65-84 years (39.3% vs. 37.9%) (p 0.01, for all). Among the Non-AMI-CS cohort, higher mortality among females compared with males was observed in the age groups 20-44 (33.5% vs. 30.5%), 45-64 (35.1% vs. 31.9%), and 65-84 years (41.7% vs. 40.3%) (p 0.01, for all). Similar age-dependent differences in the management of CS were also observed between females and males.Females have a lower incidence of CS regardless of age. Significant disparities in the management and outcomes of CS were observed based on sex. However, these disparities varied by age and etiology of CS (AMI-CS vs. Non-AMI-CS) with pronounced disparity among females in the age range of 45-84 years.

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    صورة
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  4. 54

    المصدر: Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease

    الوصف: Background There is a lack of contemporary data on cardiogenic shock (CS) in‐hospital mortality trends. Methods and Results Patients with CS admitted January 1, 2004 to December 31, 2018, were identified from the US National Inpatient Sample. We reported the crude and adjusted trends of in‐hospital mortality among the overall population and selected subgroups. Among a total of 563 949 644 hospitalizations during the period from January 1, 2004, to December 30, 2018, 1 254 358 (0.2%) were attributed to CS. There has been a steady increase in hospitalizations attributed to CS from 122 per 100 000 hospitalizations in 2004 to 408 per 100 000 hospitalizations in 2018 ( P trend P trend P trend P trend Conclusions Hospitalizations attributed to CS have tripled in the period from January 2004 to December 2018. However, there has been a slow decline in CS in‐hospital mortality during the studied period. Further studies are necessary to determine if the recent adoption of treatment algorithms in treating patients with CS will further impact in‐hospital mortality.

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    كتاب

    المصدر: Lecture Notes in Mechanical Engineering ; Advances in Industrial Automation and Smart Manufacturing ; page 113-130 ; ISSN 2195-4356 2195-4364 ; ISBN 9789811547386 9789811547393

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    كتاب

    المصدر: Lecture Notes in Mechanical Engineering ; Advances in Industrial Automation and Smart Manufacturing ; page 415-427 ; ISSN 2195-4356 2195-4364 ; ISBN 9789811547386 9789811547393

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    دورية أكاديمية

    المساهمون: U.S. National Science Foundation, Chemical Sciences, Geosciences and Biosciences Division, Office of Basic Energy Sciences, Office of Science, U.S. Department of Energy, G. Thomas and Anita Hargrove Center for Plant Genomic Research, National Science Foundation, DOE, NSF MRI

    المصدر: Phytochemistry ; volume 113, page 140-148 ; ISSN 0031-9422

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    دورية أكاديمية

    مصطلحات موضوعية: Mechanics, Aerospace Technology

    الوصف: The article presents new findings on arc stability in twin-wire robotic arc welding corresponding to the torch orientation and electrodes' position. The two mutually influencing co-existing arcs affect the stability of counterpart arc, and thereby alter the weld bead properties. The complex interaction between the arcs is determined by multi-resolution time-frequency spectrum using wavelet analysis. The wavelet-energy-entropy of the signals are analyzed to quantify the arc stability. Several experiments are conducted with different combinations of welding currents at primary and secondary electrodes (vis-a-vis one who initiates and follows the arching sequence, respectively) in tandem and transverse orientation of the torch. The investigation divulges that electrode positions and torch orientation significantly impact arc stability which in turn impacts the heat input and weld bead geometry. The arc penetration in tandem orientation is augmented by the secondary arc that operates in the same weld pool. While the transverse orientation improves the arc stability and facilitates a wider weld bead with reasonable weld penetration suitable for applications such as wire additive manufacturing and cladding. An approach for predicting arc stability as a function of process parameters is a significant contribution from this investigation. The insight into the arching phenomenon in twin-wire gas metal arc welding due to the investigation is expected to help the machine builders to design an appropriate controller that minimizes arc interference.

    العلاقة: Kumar, Manish and Quadir Moinuddin, Syed and Kumar, S. Surya and Sharma, Abhay (2021) Discrete wavelet analysis of mutually interfering co-existing welding signals in twin-wire robotic welding. Journal of Manufacturing Processes, 63. pp. 139-151. ISSN 15266125

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    دورية أكاديمية