Results 11 to 20 of about 48,382 (317)

Application of biologics for ridge preservation/reconstruction after implant removal

Clinical Advances in Periodontics, Volume 12, Issue 4, Page 270-276, December 2022., 2022
Abstract Background The purpose of this review was aimed at providing the rationale supported with a series of cases to apply biologics to enhance orchestrating the healing process at implant removal sites. Summary Implant removal is commonly applied on a daily basis, in particular, in cases that exhibit esthetic failures linked to inadequate implant ...
Alberto Monje, Fernando Suárez‐López del Amo   +1 more
wiley   +1 more source

Evaluation of BER for the EHF Communication System Serving Sharp-Coned Reentry Vehicles

Frontiers in Earth Science, 2022
“Communication blackout” could lead to severe risks to reentry vehicles. Previous studies have shown that EHF (extremely high frequency) communication is a potential solution to the “communications blackout” and was mostly used for blunt-coned vehicles ...
Xiaocui Yang, Kai Yuan, Yuhao Wang, Yiwen Liu   +3 more
doaj   +1 more source

Us helping us: The evolution of a peer support group for formerly incarcerated people

Frontiers in Psychiatry, 2022
IntroductionPhysical, psychological, and emotional trauma experienced while incarcerated influences subsequent mental health outcomes. Upon release, there is a fragmented landscape of mental health services and many of the existing services do not ...
Will Boles, Thad Tatum, Jarrod Wall, Lauren Nguyen, Alexandria Van Dall, Claire Mulhollem, Anna Sacks, Ashley Wennerstrom, Bruce Reilly, Anjali Niyogi   +9 more
doaj   +1 more source

Tropical surface gold mining: A review of ecological impacts and restoration strategies

Land Degradation &Development, Volume 33, Issue 18, Page 3661-3674, December 2022., 2022
Abstract Surface gold mining severely degrades landscapes, causing deforestation, soil erosion and displacement, and toxic contamination. The prevalence of both large‐scale and artisanal, small‐scale surface gold mining in the tropics has risen over recent decades.
Shrabya Timsina, Nora G. Hardy, David J. Woodbury, Mark S. Ashton, Susan C. Cook‐Patton, Rachel Pasternack, Meredith P. Martin   +6 more
wiley   +1 more source

Set up to fail: The politics, mechanisms, and effects of mass incarceration

Latin American Law Review, 2021
The rise of the citizen security paradigm has complemented, rather than curtailed, authoritarian legacies in Latin America and the Caribbean. Notably, criminal justice and law enforcement policies continue to feed a wave of mass incarceration, evidenced
Adrian Bergmann, Rafael Gude
doaj   +1 more source

Gas–thermal–solid coupling analysis of a hypersonic inflatable reentry and descent system

Frontiers in Materials, 2023
Hypersonic reentry has a severe flight environment during spacecraft return. To analyze the influence of pneumatic loads on the flexible structure under the extreme load condition during the deceleration process of inflatable reentry and descent system ...
Xu Cao, Xu Cao, Rui Xu, Li Yu, Xiaoshun Zhao, Qi Wang   +5 more
doaj   +1 more source

Reentry Risk and Safety Assessment of Spacecraft Debris Based on Machine Learning [PDF]

, 2023
Uncontrolled spacecraft will disintegrate and generate a large amount of debris in the reentry process, and ablative debris may cause potential risks to the safety of human life and property on the ground. Therefore, predicting the landing points of spacecraft debris and forecasting the degree of risk of debris to human life and property is very ...
arxiv   +1 more source

Calcium Handling Defects and Cardiac Arrhythmia Syndromes

Frontiers in Pharmacology, 2020
Calcium ions (Ca2+) play a major role in the cardiac excitation-contraction coupling. Intracellular Ca2+ concentration increases during systole and falls in diastole thereby determining cardiac contraction and relaxation.
Kornél Kistamás, Kornél Kistamás, Roland Veress, Balázs Horváth, Tamás Bányász, Péter P. Nánási, Péter P. Nánási, David A. Eisner   +7 more
doaj   +1 more source

Low voltage areas on the cavotricuspid isthmus-An underrecognized cause of a prolonged post-pacing interval after entrainment of typical atrial flutter. [PDF]

J Arrhythm
Post‐pacing interval (PPI)‐tachycardia cycle length >100 ms after entrainment from the cavotricuspid isthmus (CTI) is rare in typical atrial flutter (AFL). Low‐voltage areas (LVAs) in the CTI can create conduction blocks or alter wavefront propagation, highlighting their underrecognized role in prolonged PPI in typical AFL.
Miyazaki N, Okada M, Mizutani A, Tanaka N.   +3 more
europepmc   +2 more sources

Directed graph mapping shows rotors maintain non-terminating and focal sources maintain self-terminating Torsade de Pointes in canine model

Frontiers in Physiology, 2023
Torsade de Pointes is a polymorphic ventricular tachycardia which is as yet incompletely understood. While the onset of a TdP episode is generally accepted to be caused by triggered activity, the mechanisms for the perpetuation is still under debate.
Robin Van Den Abeele, Sander Hendrickx, Enid Van Nieuwenhuyse, Albert Dunnink, Alexander V. Panfilov, Alexander V. Panfilov, Alexander V. Panfilov, Marc A. Vos, Eike M. Wülfers, Nele Vandersickel   +9 more
doaj   +1 more source