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Balance beam : tips, rules, and legendary stars
\"Learn the basics to the balance beam: common moves, a typical routine, and key legendary gymnasts\"-- Provided by publisher.
Book
Work-Life Balance: an Integrative Review
Based on a thorough review of the literature we introduce an integrated conceptualization of work-life balance involving two key dimensions: engagement in work life and nonwork life and minimal conflict between social roles in work and nonwork life. Based on this conceptualization we review much of the evidence concerning the consequences of work-life balance in terms work-related, nonwork-related, and stress-related outcomes. We then identify a set of personal and organizational antecedents to work-life balance and explain their effects on work-life balance. Then we describe a set of theoretical mechanisms linking work-life balance and overall life satisfaction. Finally, we discuss future research directions and policy implications.
Journal Article
The great rebalancing : trade, conflict, and the perilous road ahead for the world economy
China's economic growth is sputtering, the Euro is under threat, and the United States is combating serious trade disadvantages. Another Great Depression? Not quite. Noted economist and China expert Michael Pettis argues instead that we are undergoing a critical rebalancing of the world economies. Debunking popular misconceptions, Pettis shows that severe trade imbalances spurred on the recent financial crisis and were the result of unfortunate policies that distorted the savings and consumption patterns of certain nations. Pettis examines the reasons behind these destabilizing policies, and he predicts severe economic dislocations--a lost decade for China, the breaking of the Euro, and a receding of the U.S. dollar--that will have long-lasting effects. Pettis explains how China has maintained massive--but unsustainable--investment growth by artificially lowering the cost of capital. He discusses how Germany is endangering the Euro by favoring its own development at the expense of its neighbors. And he looks at how the U.S. dollar's role as the world's reserve currency burdens America's economy. Although various imbalances may seem unrelated, Pettis shows that all of them--including the U.S. consumption binge, surging debt in Europe, China's investment orgy, Japan's long stagnation, and the commodity boom in Latin America--are closely tied together, and that it will be impossible to resolve any issue without forcing a resolution for all. Demonstrating how economic policies can carry negative repercussions the world over, The Great Rebalancing sheds urgent light on our globally linked economic future.
Sagittal balance of the spine
The static sagittal balance of the normal spine is a physiological alignment of the spine in the most efficient manner by the muscular forces. During gait, this balance is constantly thwarted by single-foot support. This analysis involves the study of parameters which are now well defined. The pelvic incidence is constant, and the sacral slope and the pelvic tilt are positional. The cervical parameters are the upper (O–C2) and lower cervical curvatures (C2–C7), the C7 slope, the spino-cranial angle and the vertical cervical offset. At the thoracic and lumbar level, they are, respectively, kyphosis and lordosis. The OD-HA (odontoid hip axis) angle is the most efficient parameter to analyse the global balance. The average values of these parameters are reported with the new 3D measurements by Le Huec et al. The relationship between these different parameters was analysed, and Roussouly proposed his classification of the different spine shape. Ageing makes it possible to show compensation mechanisms at three levels: spinal, pelvic and lower limbs. Understanding these different data allows for better planning of the surgical management of the patients. Global evaluation of the entire spine and the measurement of the aforementioned parameters allow to determine the extent of the correction to be performed during surgery. Taking these parameters into account also enables us to understand the complications involved in this type of surgery: transitional syndromes or junctional syndromes. Integration of these parameters into the study of gait is an area still under investigation.Graphic abstractThese slides can be retrieved under Electronic Supplementary Material .
Journal Article
Wearable Inertial Sensors to Assess Standing Balance: A Systematic Review
Wearable sensors are de facto revolutionizing the assessment of standing balance. The aim of this work is to review the state-of-the-art literature that adopts this new posturographic paradigm, i.e., to analyse human postural sway through inertial sensors directly worn on the subject body. After a systematic search on PubMed and Scopus databases, two raters evaluated the quality of 73 full-text articles, selecting 47 high-quality contributions. A good inter-rater reliability was obtained (Cohen’s kappa = 0.79). This selection of papers was used to summarize the available knowledge on the types of sensors used and their positioning, the data acquisition protocols and the main applications in this field (e.g., “active aging”, biofeedback-based rehabilitation for fall prevention, and the management of Parkinson’s disease and other balance-related pathologies), as well as the most adopted outcome measures. A critical discussion on the validation of wearable systems against gold standards is also presented.
Journal Article
Contributions of GRACE to understanding climate change
Time-resolved satellite gravimetry has revolutionized understanding of mass transport in the Earth system. Since 2002, the Gravity Recovery and Climate Experiment (GRACE) has enabled monitoring of the terrestrial water cycle, ice sheet and glacier mass balance, sea level change and ocean bottom pressure variations, as well as understanding responses to changes in the global climate system. Initially a pioneering experiment of geodesy, the time-variable observations have matured into reliable mass transport products, allowing assessment and forecast of a number of important climate trends, and improvements in service applications such as the United States Drought Monitor. With the successful launch of the GRACE Follow-On mission, a multi-decadal record of mass variability in the Earth system is within reach.The Gravity Recovery and Climate Experiment (GRACE) mission, launched in 2002, allows monitoring of changes in hydrology and the cryosphere with terrestrial and ocean applications. This Review Article focuses on its contribution to the detection and quantification of climate change signals.
Journal Article