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Treatment of skeletal class III malocclusion with the Alt-RAMEC protocol and intermaxillary elastics : A retrospective cohort study.
J Orofac Orthop
December 2024
Department of Orthodontics, Faculty of Dentistry, Gazi University, Bişkek Cd. (8.Cd.) 1.Sk. No:8 06490 Emek, Ankara, Turkey.
Purpose: This study aimed to evaluate the effects of the use of class III elastics with fixed appliances and the Alt-RAMEC procedure on dentofacial structures in patients diagnosed with skeletal class III malocclusion.
Methods: The retrospective cohort study was performed on lateral cephalometric radiographs of 20 individuals (7 girls, 13 boys; mean chronological age 12.41 years) with skeletal class III malocclusion because of maxillary deficiency or maxillary deficiency and mandibular excess which were treated by using the Alt-RAMEC protocol and class III elastics.
Cascading tipping points of Antarctica and the Southern Ocean.
Ambio
December 2024
College of Business and Economics, University of Tasmania, Hobart, Australia.
Antarctica and the Southern Ocean are key elements in the physical and biological Earth system. Human-induced climate change, and other human activities in the region, are leading to several potential interacting tipping points with major and irreversible consequences. Here, we examine eight potential physical, biological, chemical, and social Antarctic tipping points.
View Article and Find Full Text PDFAugmenting Endoscopic Transforaminal Spinal Decompression Surgery (Full Endoscopic Spine Surgery) Using Stimulated Electromyography Neuromonitoring Dilators.
Int J Spine Surg
December 2024
Department of Orthopedic Surgery, Sengkang General Hospital, Sengkang, Singapore
Background: Full endoscopic spine surgery via a transforaminal approach (FESS-TFA) offers a minimally invasive approach for spinal decompression. However, it carries a risk of nerve root irritation or injury. Existing intraoperative neuromonitoring primarily provides retrospective warnings of potential nerve disturbance.
View Article and Find Full Text PDFSharp habitat shifts, evolutionary tipping points and rescue: Quantifying the perilous path of a specialist species towards a refugium in a changing environment.
Theor Popul Biol
December 2024
Theoretical Biology Lab, The Francis Crick Institute, London NW1 1AT, United Kingdom. Electronic address:
Article Synopsis
- Specialist species face heightened extinction risks due to climate change, requiring adaptation and movement to safe habitats for survival.
- This study investigates how environmental factors affect the adaptation and persistence of a specialist species through a genetic model featuring two distinct environments.
- Findings reveal that a certain speed of environmental change dictates when species may abruptly switch habitats, with strong local adaptation potentially leading to increased extinction risks if conditions worsen too quickly.
Severe fire regimes decrease resilience of ectothermic populations.
J Anim Ecol
November 2024
Department of Zoology, University of Oxford, Oxford, UK.
Understanding populations' responses to environmental change is crucial for mitigating human-induced disturbances. Here, we test hypotheses regarding how three essential components of demographic resilience (resistance, compensation and recovery) co-vary along the distinct life histories of three lizard species exposed to variable, prescribed fire regimes. Using a Bayesian hierarchical framework, we estimate vital rates (survival, growth and reproduction) with 14 years of monthly individual-level data and mark-recapture models to parameterize stochastic integral projection models from five sites in Brazilian savannas, each historically subjected to different fire regimes.
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