الفائدة الحقيقية والدولار وطلب البنوك المركزية: القوى التي يربطها البحث بتحركات الذهب.
Pauli Virtanen, Ralf Gommers, Travis E. Oliphant et al. · 2020 · Nature Methods
Abstract SciPy is an open-source scientific computing library for the Python programming language. Since its initial release in 2001, SciPy has become a de facto standard for leveraging scientific algorithms in Python, with over 600 unique code contributors, thousands of dependent packages, over 100,000 dependent repositories and millions of downloads per year. In this work, we provide an overview of the capabilities and development practices of SciPy 1.0 and highlight some recent technical deve
Valarie A. Zeithaml · 1988 · Journal of Marketing
Evidence from past research and insights from an exploratory investigation are combined in a conceptual model that defines and relates price, perceived quality, and perceived value. Propositions about the concepts and their relationships are presented, then supported with evidence from the literature. Discussion centers on directions for research and implications for managing price, quality, and value.
Rainer Storn, Kenneth Price · 1997 · Journal of Global Optimization
Guy McKhann, David Drachman, Marshall Folstein et al. · 1984 · Neurology
Jørgen Vestbo, Suzanne S. Hurd, Àlvar Agustí et al. · 2012 · American Journal of Respiratory and Critical Care Medicine
Chronic obstructive pulmonary disease (COPD) is a global health problem, and since 2001, the Global Initiative for Chronic Obstructive Lung Disease (GOLD) has published its strategy document for the diagnosis and management of COPD. This executive summary presents the main contents of the second 5-year revision of the GOLD document that has implemented some of the vast knowledge about COPD accumulated over the last years. Today, GOLD recommends that spirometry is required for the clinical diagno
