Publications by authors named "Charlton T"

Article Synopsis
  • SER4a ankle fractures involve intricate treatment challenges due to complications with the medial clear space, focusing on quantifying joint parameters through weightbearing CT scans.
  • Ten patients with isolated Weber B fibula fractures were studied, revealing consistent abnormal measurements in the medial clear space and differences in rotation and translation of the injured ankle.
  • While joint contact area appeared unchanged between injured and uninjured ankles, significant increases in external rotation and lateral translation were noted, leaving clinical implications of these findings still unclear.
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Background: When faced with treatment options, patients are asked to participate in decision-making. We sought to determine which treatment aspects matter most for individuals treated for muscle invasive bladder cancer (MIBC), with an aim to improve understanding of patient preferences and what trade-offs patients are willing to accept. Our study consisted of a discrete choice experiment (DCE): a type of questionnaire used to elicit preferences in the absence of real-world choice.

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Background: Symptomatic thoracic disc herniation (TDH) is a rare pathology that is addressed with relatively challenging surgical approaches, the choice and technical execution of which have been well described in the literature. Interestingly, long-term outcomes, including surgical site pain-related disability, the need for instrumentation, and commonly occurring complications such as cerebrospinal fluid (CSF)-pleural fistula have not been widely addressed. Here, we address the complication profiles and long-term outcomes of different surgical approaches for TDH.

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Background: Even with the best conservative care, patients with Charcot neuroarthropathy (CN) of the foot and ankle often ulcerate, increasing their risk of infection, amputation, and death. Surgical fixation has been associated with risk of recurrent ulceration, potentially due to poor bone quality prone to recurrent deformity and ulceration. We propose midfoot beam reconstruction with PMMA augmentation as a novel means of improving fixation.

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  • Fructose metabolism is linked to several diseases, but a lack of suitable imaging tools has made studying its role in these conditions difficult.
  • Researchers developed a new radiotracer, [F]4-FDF, using a molecular design inspired by aldolase, an enzyme crucial for fructose breakdown, achieving high effectiveness in metabolic imaging.
  • The study found that [F]4-FDF has low uptake in healthy brain and heart tissues while successfully mapping inflammatory responses, indicating its potential as a valuable tool for diagnosing fructose metabolism-related diseases.
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In this paper, we determine the magnetic moment induced in graphene when grown on a cobalt film using polarised neutron reflectivity (PNR). A magnetic signal in the graphene was detected by X-ray magnetic circular dichroism (XMCD) spectra at the C -edge. From the XMCD sum rules an estimated magnetic moment of 0.

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Snake venoms constitute a complex, rapidly evolving trait, whose composition varies between and within populations depending on geographical location, age and preys (diets). These factors have determined the adaptive evolution for predatory success and link venom heterogeneity with prey specificity. Moreover, understanding the evolutionary drivers of animal venoms has streamlined the biodiscovery of venom-derived compounds as drug candidates in biomedicine and biotechnology.

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Microglia are the primary immunocompetent cells that protect the brain from environmental stressors, but can also be driven to release pro-inflammatory cytokines and induce a cytotoxic environment. Brain-derived neurotrophic factor (BDNF) is important for the regulation of plasticity, synapse formation, and general neuronal health. Yet, little is known about how BDNF impacts microglial activity.

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We report the magnitude of the induced magnetic moment in CVD-grown epitaxial and rotated-domain graphene in proximity with a ferromagnetic Ni film, using polarized neutron reflectivity (PNR) and X-ray magnetic circular dichroism (XMCD). The XMCD spectra at the C -edge confirm the presence of a magnetic signal in the graphene layer, and the sum rules give a magnetic moment of up to ∼0.47 μ/C atom induced in the graphene layer.

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The Quite Intense Kinetics Reflectometer (QIKR) will be a general-purpose, horizontal-sample-surface neutron reflectometer. Reflectometers measure the proportion of an incident probe beam reflected from a surface as a function of wavevector (momentum) transfer to infer the distribution and composition of matter near an interface. The unique scattering properties of neutrons make this technique especially useful in the study of soft matter, biomaterials, and materials used in energy storage.

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For the past 50 years, evidence for the existence of functional lipid domains has been steadily accumulating. Although the notion of functional lipid domains, also known as "lipid rafts," is now widely accepted, this was not always the case. This ambiguity surrounding lipid domains could be partly attributed to the fact that they are highly dynamic, nanoscopic structures.

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Halbach arrays are the most efficient closed structures for generating directed magnetic fields and gradients, and are widely used in various electric machines. We utilized fused deposition modeling-based Big Area Additive Manufacturing technology to print customized, compensated concentric Halbach array rings, using polyphenylene sulfide-bonded NdFeB permanent magnets for polarized neutron reflectometry. The Halbach rings could generate a 0 ≤  0.

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Introduction: Effective treatment of postoperative pain after elective surgery remains elusive, and the experience of pain can be variable for patients. The patient's intrinsic pain tolerance may contribute to this variability. We sought to identify whether there was a correlation between subjective report of intrinsic pain tolerance and objective measurement of pressure dolorimetry (PD).

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Cobalt oxides have long been understood to display intriguing phenomena known as spin-state crossovers, where the cobalt ion spin changes vs. temperature, pressure, etc. A very different situation was recently uncovered in praseodymium-containing cobalt oxides, where a first-order coupled spin-state/structural/metal-insulator transition occurs, driven by a remarkable praseodymium valence transition.

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Emergent phenomena at heterointerfaces are directly associated with the bonding geometry of adjacent layers. Effective control of accessible parameters, such as the bond length and bonding angles, offers an elegant method to tailor competing energies of the electronic and magnetic ground states. In this study, we construct unit-thick syntactic layers of cobaltites within a strongly tilted octahedral matrix via atomically precise synthesis.

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Article Synopsis
  • Recurrence of lung cancer after radiotherapy occurs in up to 36% of patients, highlighting the need for better prediction of who is at higher risk.
  • Researchers developed radiomic classification models using CT scans from over 900 patients with NSCLC to predict overall survival (OS), recurrence-free survival (RFS), and recurrence rates two years post-treatment.
  • The models showed promising results in predicting outcomes and could be used to create personalized surveillance strategies, potentially leading to improved patient care in future clinical trials.
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Interfacial magnetism stimulates the discovery of giant magnetoresistance (MR) and spin-orbital coupling across the heterointerfaces, facilitating the intimate correlation between spin transport and complex magnetic structures. Over decades, functional heterointerfaces composed of nitrides have seldom been explored due to the difficulty in synthesizing high-quality nitride films with correct compositions. Here, the fabrication of single-crystalline ferromagnetic Fe N thin films with precisely controlled thicknesses is reported.

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Actinide materials have various applications that range from nuclear energy to quantum computing. Most current efforts have focused on bulk actinide materials. Tuning functional properties by using strain engineering in epitaxial thin films is largely lacking.

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  • A study focused on non-small cell lung cancer (NSCLC) patients, aimed to develop and validate machine learning models using patient, tumor, and treatment data for predicting recurrence, recurrence-free survival (RFS), and overall survival (OS) following radiotherapy.
  • The research included 657 patients from 5 hospitals and involved various data pre-processing and machine learning techniques to create risk-stratification models, assessed through cross-validation and external testing.
  • Findings indicated that the machine learning models outperformed traditional TNM stage and performance status assessments in predicting recurrence and overall survival, with promising AUC scores demonstrating their effectiveness.
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  • The study examines how hydrogen influences phase transitions in perovskite oxides, focusing on LaSrMnO as a key example.
  • Hydrogenation leads to lattice expansion and changes in electronic properties, triggering a metal-insulator transition and increased resistivity.
  • The transition from perovskite to a brownmillerite phase involves organizing oxygen vacancies and is reversible by reintroducing oxygen through annealing, even though hydrogen does not remain in the crystal lattice during steady states.
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In magnetic systems, spin and exchange disorder can provide access to quantum criticality, frustration, and spin dynamics, but broad tunability of these responses and a deeper understanding of strong limit disorder are lacking. Here, it is demonstrated that high entropy oxides present a previously unexplored route to designing materials in which the presence of strong local compositional disorder may be exploited to generate tunable magnetic behaviors-from macroscopically ordered states to frustration-driven dynamic spin interactions. Single-crystal La(Cr Mn Fe Co Ni )O films are used as a model system hosting a magnetic sublattice with a high degree of microstate disorder in the form of site-to-site spin and exchange type inhomogeneity.

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