Results 21 to 30 of about 622,161 (318)

The Seasonal Cycle and the Business Cycle [PDF]

open access: yesJournal of Political Economy, 1989
Almost all recent research on macroeconomic fluctuations has worked with seasonally-adjusted or annual data. This paper takes a different approach by examining the seasonal movements themselves. The authors' results show that seasonal fluctuations are an important source of variation in all macroeconomic quantity variables, but are small or absent in ...
Robert B. Barsky, Jeffrey A. Miron
openaire   +2 more sources

Unknotted Cycles

open access: yesThe Electronic Journal of Combinatorics, 2022
Noting that cycle diagrams of permutations visually resemble grid diagrams used to depict knots and links in topology, we consider the knot (or link) obtained from the cycle diagram of a permutation. We show that the permutations which correspond in this way to an unknot are enumerated by the Schröder numbers, and also enumerate the permutations ...
Christopher Cornwell, Nathan McNew
openaire   +3 more sources

Cycling and the city: a case study of how gendered, ethnic and class identities can shape healthy transport choices. [PDF]

open access: yes, 2011
As a form of 'active transport', cycling has been encouraged as a route to improving population health. However, in many high-income countries, despite being widely seen as a 'healthy' choice, few people do cycle for transport.
Green, Judith   +7 more
core   +1 more source

Effect of detraining on bone and muscle tissue in subjects with chronic spinal cord injury after a period of electrically-stimulated cycling: a small cohort study [PDF]

open access: yes, 2009
Objective: To investigate adaptive changes in bone and muscle parameters in the paralysed limbs after de-training or reduced functional electrical stimulation (FES) induced cycling following high-volume FES-cycling in chronic spinal cord injury (SCI ...
Kakebeeke, T.H.   +19 more
core   +1 more source

Distribution characteristics and influencing factors of iron-rich groundwater in Xining City

open access: yesShuiwen dizhi gongcheng dizhi
Groundwater is an important water supply source in Xining City. Previous works have found that iron-rich groundwater limits water development and utilization.
Chunyan LIU   +11 more
doaj   +1 more source

Quantitative mixed-valence state identification of metal ions based on fluorescence response of graphene quantum dots

open access: yesMaterials & Design, 2023
Quantitative identification of mixed-valence metal ions is essential for gaining deeper insights into critical chemical and biological processes in environmental science, chemical engineering, and biological systems.
Jing Xu   +11 more
doaj   +1 more source

MONEY CYCLES [PDF]

open access: yesInternational Economic Review, 2010
Operating overheads are widespread and lead to concentrated bursts of activity. To transfer resources between active and idle spells, agents demand financial assets. Futures contracts and lotteries are unsuitable, as they have substantial overheads of their own.
Clausen, Andrew, Strub, Carlo
openaire   +10 more sources

Comparison of stimulation patterns for FES-cycling using measures of oxygen cost and stimulation cost [PDF]

open access: yes, 2006
<b>Aim</b><p></p> The energy efficiency of FES-cycling in spinal cord injured subjects is very much lower than that of normal cycling, and efficiency is dependent upon the parameters of muscle stimulation.
Stone, B.   +6 more
core   +1 more source

Clinical relevance and treatment possibilities of bipolar rapid cycling [PDF]

open access: yes, 2002
Bipolar rapid cycling (RC) is defined as 4 or more affective episodes within 1 year. It has been postulated that RC is related to a poor response to lithium, to the same extent as mixed episodes or other atypical symptoms of the illness.
Amann, B.   +4 more
core   +1 more source

How to “De-Dutch” the bicycle: Development of active mobility policy on the Caribbean island of Bonaire through real-world mixed methods research

open access: yesTransportation Research Interdisciplinary Perspectives
Bonaire, an island in the Dutch Caribbean, faces many societal challenges including poverty, high rates of non-communicable diseases, traffic congestion and physical inactivity.
Dylan Power   +4 more
doaj   +1 more source

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