Results 181 to 190 of about 4,804,968 (362)

The Welfare of Children During the Great Depression [PDF]

open access: yes
This paper examines the impact of New Deal relief programs on demographic outcomes in major U.S. cities during the 1930s. A five-equation structural model is estimated that tests the effect of the relief spending on infant mortality, non-infant mortality,
Michael R. Haines   +2 more
core  

Design, Control, and Clinical Applications of Magnetic Actuation Systems: Challenges and Opportunities

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This review aims to provide a broad understanding for interdisciplinary researchers in engineering and clinical applications. It addresses the development and control of magnetic actuation systems (MASs) in clinical surgeries and their revolutionary effects in multiple clinical applications.
Yingxin Huo   +3 more
wiley   +1 more source

Spring and Power in Hovering Ornithopters

open access: yesAdvanced Intelligent Systems, EarlyView.
Only small ornithopters can hover, longest at the hummingbird size. This article reviews the drive and power of these hovering machines, focusing on elastic energy and thrust boosters. Unlike two‐winged designs, X‐winged and multiple‐V‐winged ornithopters benefit from lower disk loading and slower, smaller wingbeats, and the clap‐and‐fling effect ...
Gih‐Keong Lau   +4 more
wiley   +1 more source

BUSINESS CYCLES, GROWTH, AND ECONOMIC POLICY: SCHUMPETER AND THE GREAT DEPRESSION

open access: yesJournal of the History of Economic Thought, 2016
Muriel Dal Pont Legrand, H. Hagemann
semanticscholar   +1 more source

The Great Millennial Depression?

open access: yes, 2019
"Synapsis: A Health Humanities Journal" was founded in 2017 by Arden Hegele, a literary scholar, and Rishi Goyal, a physician. Its mission is to develop conversations among diverse people thinking about medical and humanistic ways of knowing . as a “Department Without Walls” that connects scholars and thinkers from different spheres.
openaire   +2 more sources

Life and death during the Great Depression. [PDF]

open access: yesProc Natl Acad Sci U S A, 2009
Tapia Granados JA, Diez Roux AV.
europepmc   +1 more source

An Eyeball‐Movement‐Inspired Multi‐DOF Miniature Piezoelectric Actuator with Strong Load‐Driving Capability

open access: yesAdvanced Intelligent Systems, EarlyView.
Inspired by the eye movements of humans, a multi‐degree‐of‐freedom (multi‐DOF) miniature piezoelectric actuator with a square‐circular ring structure is proposed. The actuator demonstrates a well‐balanced performance in miniaturization, operational efficiency, actuation precision, and load‐driving capability.
Binbin Zhu, Yan Qing Wang
wiley   +1 more source

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