Results 91 to 100 of about 115,932 (268)

The roAp Stars Observed by the Kepler Space Telescope

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Before the launch of the Kepler Space Telescope, most studies of the rapidly oscillating Ap (roAp) stars were conducted with ground-based photometric B observations, supplemented with high-resolution time-resolved spectroscopy and some space observations
Daniel L. Holdsworth
doaj   +1 more source

Sustainable One‐Pot Electrochemical Approach for Entrapment of Multi‐Enzymes and Biocompatible Redox Mediator

open access: yesChemPlusChem, EarlyView.
Novel enzyme‐modified carbon felt electrodes are constructed for efficient bio‐electrocatalysis. Simultaneous electrodeposition of pyrrole and neutral red provides a facile one‐step approach for enzyme immobilization. The biocompatible conductive polymer matrix performs for the entrapment of dehydrogenase enzymes on the electrode and ensures sufficient
Hathaichanok Seelajaroen   +6 more
wiley   +1 more source

Eccentric Companions to Kepler-448b and Kepler-693b: Clues to the Formation of Warm Jupiters [PDF]

open access: yes, 2017
I report the discovery of non-transiting close companions to two transiting warm Jupiters (WJs), Kepler-448/KOI-12b (orbital period $P=17.9\,\mathrm{days}$, radius $R_{\rm p}=1.23^{+0.06}_{-0.05}\,R_{\rm Jup}$) and Kepler-693/KOI-824b ($P=15.4\,\mathrm{days}$, $R_{\rm p}=0.91\pm0.05\,R_{\rm Jup}$), via dynamical modeling of their transit timing and ...
arxiv   +1 more source

Frequency and characteristics of bacterial and viral low-grade infections of the intervertebral discs: a prospective, observational study

open access: yesJournal of Orthopaedics and Traumatology, 2022
Study design Monocentric, prospective, observational study. Objective The clinical relevance of bacterial colonization of intervertebral discs is controversial.
Wolfgang Senker   +14 more
doaj   +1 more source

On the Proper Treatment of Dynamics in Cognitive Science

open access: yesTopics in Cognitive Science, EarlyView., 2023
Abstract This essay examines the relevance of dynamical ideas for cognitive science. On its own, the mere mathematical idea of a dynamical system is too weak to serve as a scientific theory of anything, and dynamical approaches within cognitive science are too rich and varied to be subsumed under a single “dynamical hypothesis.” Instead, after first ...
Randall D. Beer
wiley   +1 more source

A Tale of Two Peas in a Pod: The Kepler-323 and Kepler-104 Systems

open access: yesThe Astronomical Journal
In order to understand the relationship between planet multiplicity, mass, and composition, we present newly measured masses of five planets in two planetary systems: Kepler-323 and Kepler-104. We used the HIRES instrument at the W.M. Keck Observatory to
C. Alexander Thomas   +12 more
doaj   +1 more source

Reduction of spondylolisthesis and restoration of lumbar lordosis after anterior lumbar interbody fusion (ALIF)

open access: yesBMC Surgery, 2023
Background Anterior lumbar interbody fusion (ALIF) is a well-established surgical treatment option for various diseases of the lumbar spine, including spondylolisthesis.
Stefan Aspalter   +9 more
doaj   +1 more source

Meniscal forces and knee kinematics are affected by tibial slope modifying high tibial osteotomy

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose To quantify the effect of increasing the posterior tibial slope (PTS) on knee kinematics and the resultant medial and lateral meniscal forces. Methods In this controlled laboratory study, a 6 degrees of freedom (DOF) robotic testing system was used to apply external loading conditions to seven fresh‐frozen human cadaveric knees: (1 ...
Philipp W. Winkler   +7 more
wiley   +1 more source

Comment on "An algebra and trigonometry-based proof of Kepler's first law" by Akarsh Simha, arXiv:2111.08447v1 [PDF]

open access: yesarXiv, 2021
The recent non-calculus proof of Kepler's first law succeeds because of an obscure, but valid property of the ellipse.
arxiv  

Age is not a primary risk factor for ACL injury—A comprehensive review of ACL injury and reinjury risk factors confounded by young patient age

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Revision surgery after anterior cruciate ligament reconstruction (ACL‐R) is hypothesized to be the result of an interplay between factors associated with the anatomy, physiological characteristics and environment of the patient. The multifactorial nature of revision ACL‐R risk is difficult to quantify, and evidence regarding the independent ...
Bálint Zsidai   +10 more
wiley   +1 more source

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