Introduction Conclusions References Tables Figures ◭ ◮ ◭ ◮ Back Close Full Screen / Esc Abstract Introduction Conclusions References Tables Figures ◭ ◮ ◭ ◮ Back Close Full Screen / Esc Abstract Pleistocene benthic δ 18 O records exhibit strong spectral power at ∼41 kyr, indicating that global ice volume has been modulated by Earth's axial tilt. This feature, and weak spectral power in the prece...

This study addresses the strength of the statistical relationship between paleoclimate data and the Earth orbital forcing. A methodology called the nonparametric additive model (NPAM) was used to relate δ18O data of the North Greenland Ice Core Project (NGRIP) ice core and reconstructed temperatures of the Vostok ice core to eccentricity, obliquity, and precession. Both data sets depended linea...

In a recent paper, Wisdom (2007, Icarus, in press) derived concise expressions for the rate of tidal dissipation in a synchronously rotating body for arbitrary orbital eccentricity and obliquity. He provided numerical evidence than the derived rate is always larger than in an asymptotic nonsynchronous rotation state at any obliquity and eccentricity. Here, I present a simple mathematical proof ...

Context. It is widely accepted that the large obliquity of Uranus is the result of a great tangential collision (GC) with an Earth size proto-planet at the end of the accretion process. The impulse imparted by the GC had affected the Uranian satellite system. Very recently, nine irregular satellites (irregulars) have been discovered around Uranus. Their orbital and physical properties, in parti...

Cycloids, arcuate features observed on Europa’s surface, have been interpreted as tensile cracks that form in response to diurnal tidal stress caused by Europa’s orbital eccentricity. Stress from non-synchronous rotation may also contribute to tidal stress, and its influence on cycloid shapes has been investigated as well. Obliquity, fast precession, and physical libration would contribute to t...

STUDY DESIGN Single institution cohort data were collected prospectively and reviewed retrospectively. OBJECTIVES This study aims to compare outcomes among three different instrumentation types: unit rod, iliac screws, and sacral alar iliac (SAI) screws in terms of pelvic obliquity correction in children with cerebral palsy (CP). SUMMARY OF BACKGROUND DATA The optimal choice for spinopelvic...

The question of climate at high obliquity is raised in the context of both exoplanet studies (e.g. habitability) and paleoclimates studies (evidence for low-latitude glaciation during the Neoproterozoic and the ‘‘Snowball Earth’’ hypothesis). States of high obliquity, /, are distinctive in that, for / P 54!, the poles receive more solar radiation in the annual mean than the equator, opposite to...

Introduction The goal of posterior spinal fusion in neuromuscular scoliosis is to obtain a balanced trunk as well as accommodative, pressurefree seating on a level pelvis. Development of pelvic obliquity or involvement of the pelvis in the scoliotic curve can cause difficulties with seating, costopelvic impingement, and worsening pulmonary function, ultimately leading to difficulty with caregiv...

We use a grid-based shallow water model to simulate the atmospheric dynamics of the transiting hot Jupiter HD 209458b. Under the usual assumption that the planet is in synchronous rotation with zero obliquity, a steady state is reached with a well-localized cold spot centered 76◦ east of the antistellar point. This represents a departure from predictions made by previous simulations in the lite...