نتایج جستجو برای: ratio scale variables
تعداد نتایج: 1311548 فیلتر نتایج به سال:
PURPOSE To identify the characteristics of people with hip or knee osteoarthritis (OA) attending a regional triage centre for an initial consult who are deemed not yet ready for total joint arthroplasty (TJA). METHODS Initial consultation notes (n=482) were reviewed retrospectively. Predictive variables were derived from the literature a priori, and 14 of these variables were suitable for inc...
This research analyses the efficiency of China’s banks using the data envelopment analysis (DEA). The Chinese government began its reforms of the banking industry reform since 1978. Our data set contains twelve banks in China during the period of 1996 to 2003. All nominal variables are transformed into real variables in the 2003 prices. There are twelve banks including four state-owned speciali...
Occupational stress has become a major cause of illness and a major risk to the psychological and social well-being of workers. In this context, the aim of this study was to estimate the prevalence of occupational stress in employees of a banking network in the municipal region of Vitória, state of Espírito Santo, and its association with sociodemographic variables and work characteristics. Thi...
OBJECTIVE The neuropathogenesis of postoperative delirium remains unknown. Low cerebrospinal fluid (CSF) βamyloid protein (Aβ) and high CSF Tau levels are associated with Alzheimer's disease. We therefore assessed whether lower preoperative CSF Aβ/Tau ratio was associated with higher incidence and greater severity of postoperative delirium. METHODS One hundred and fifty three participants (71...
The security-constrained unit commitment (SCUC) challenge is solved repeatedly several times every day, for operations in a limited time. Typical mixed-integer linear programming (MILP) formulations are intertemporal nature and have complex discrete solution spaces that exponentially increase with system size. Improvements the SCUC formulation and/or method yield faster hold immense economic va...
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