Publications by authors named "Dubois D"

Purpose: We hypothesised that applying radiomics to [F]PSMA-1007 PET/CT images could help distinguish Unspecific Bone Uptakes (UBUs) from bone metastases in prostate cancer (PCa) patients. We compared the performance of radiomic features to human visual interpretation.

Materials And Methods: We retrospectively analysed 102 hormone-sensitive PCa patients who underwent [F]PSMA-1007 PET/CT and exhibited at least one focal bone uptake with known clinical follow-up (reference standard).

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Background: The aim of this randomized control trial is to test the impact of providing additional training and support to volunteers who are paired with youth of color in the Big Brothers Big Sisters (BBBS) community-based mentoring program. The aim of the intervention activities is to enhance the capacity of mentors to have more culturally responsive and informed interactions with their mentees of color, thereby strengthening the youth's ethnic/racial identity and abilities to both cope with experiences of racism and contribute to causes that advance social justice.

Methods: Recruitment started in June 2022, with a goal of enrolling 240 dyads (i.

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Introduction: In the United States, sport is a common form of youth physical activity (PA) with demonstrated health benefits. However, limited longitudinal dataexists on the psychosocial determinants and consequences of youth sport participation. This study examined grade 6 (11-12-year-old) predictors of high school organized sport participation and effects of high school sport participation on age 26 behavior, mental health and wellbeing.

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Introduction: To date, surveillance of vaping among Canadians (using vaping products with or without nicotine) has largely been examined with respect to age and smoking status. However, a nationally representative examination of a broad set of characteristics is lacking. This study characterized Canadians aged 15 years and older who vape, stratified by smoking status.

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  • TROP2 is a promising target for antibody-drug conjugates in treating aggressive breast cancers, but its role as a predictive marker remains unclear.
  • Researchers compared different methods for assessing TROP2 levels in breast cancer tissues to establish reliable evaluation criteria.
  • Findings suggest using HER2 IHC guidelines for TROP2 assessment is effective and may lead to better predictions of treatment responses in future studies.
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Metal chalcogenide nanoparticles have been attracting extensive attention in diverse fields. Traditionally these nanoparticles are stabilized by organic ligands such as thiols and amines involving nonconjugated core-ligand interfacial interactions. In the present study, a facile wet-chemistry method is described for the synthesis of palladium disulfide (PdS) nanoparticles capped with acetylene derivatives.

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Unspecific bone uptake (UBU) related to [F]PSMA-1007 PET/CT imaging represents a clinical challenge. We aimed to assess whether a combination of clinical, biochemical, and imaging parameters could predict skeletal metastases in patients with [F]PSMA-1007 bone focal uptake, aiding in result interpretation. We retrospectively analyzed [F]PSMA-1007 PET/CT performed in hormone-sensitive prostate cancer (PCa) patients at 3 tertiary-level cancer centers.

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Objectives: Performance evaluation of routine laboratory methods to determine the susceptibility of Enterobacterales urinary isolates to fosfomycin (oral administration) and mecillinam.

Methods: We collected 347 Enterobacterales isolates from monomicrobial midstream urine samples from women with significant bacteriuria and leukocyturia. Mostly non-Escherichia coli isolates (i.

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Carbon-based functional nanocomposites have emerged as potent antimicrobial agents and can be exploited as a viable option to overcome antibiotic resistance of bacterial strains. In the present study, graphitic carbon nitride nanosheets are prepared by controlled calcination of urea. Spectroscopic measurements show that the nanosheets consist of abundant carbonyl groups and exhibit apparent photocatalytic activity under UV photoirradiation towards the selective production of singlet oxygen.

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Development of high-performance, low-cost catalysts for electrochemical water splitting is key to sustainable hydrogen production. Herein, ultrafast synthesis of carbon-supported ruthenium-copper (RuCu/C) nanocomposites is reported by magnetic induction heating, where the rapid Joule's heating of RuCl and CuCl at 200 A for 10 s produces Ru-Cl residues-decorated Ru nanocrystals dispersed on a CuCl scaffold, featuring effective Ru to Cu charge transfer. Among the series, the RuCu/C-3 sample exhibits the best activity in 1 m KOH toward both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), with an overpotential of only -23 and +270 mV to reach 10 mA cm, respectively.

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Purpose: To evaluate the impact of the 2022 infant formula shortage on self-reported anxiety and depression.

Background: The US national infant formula shortage of 2022 originated from supply chain disruptions triggered by the COVID-19 pandemic, and the shortage was further compounded by a recall of tainted formula products.

Methods: We used survey-weighted data from the Household Pulse Survey (HPS) to measure self-reported anxiety and depression among individuals with formula-fed infants less than 1 year of age.

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Background: Bacterial infections (BIs) are widespread in ICUs. The aims of this study were to assess compliance with antibiotic recommendations and factors associated with non-compliance.

Methods: We conducted an observational study in eight French Paediatric and Neonatal ICUs with an antimicrobial stewardship programme (ASP) organised once a week for the most part.

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Diabetic foot ulcers (DFU) are chronic, refractory wounds caused by diabetic neuropathy, vascular disease, and bacterial infection, and have become one of the most serious and persistent complications of diabetes mellitus because of their high incidence and difficulty in healing. Its malignancy results from a complex microenvironment that includes a series of unfriendly physiological states secondary to hyperglycemia, such as recurrent infections, excessive oxidative stress, persistent inflammation, and ischemia and hypoxia. However, current common clinical treatments, such as antibiotic therapy, insulin therapy, surgical debridement, and conventional wound dressings all have drawbacks, and suboptimal outcomes exacerbate the financial and physical burdens of diabetic patients.

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Background: Although peer-assisted learning is known to be effective for reciprocal learning in medical education, it has been understudied in simulation. We aimed to assess the effectiveness of peer-led compared to instructor-led debriefing for non-technical skill development in simulated crisis scenarios.

Methods: Sixty-one undergraduate medical students were randomized into the control group (instructor-led debriefing) or an intervention group (peer debriefer or peer debriefee group).

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Postgraduate medical education is an essential societal enterprise that prepares highly skilled physicians for the health workforce. In recent years, PGME systems have been criticized worldwide for problems with variable graduate abilities, concerns about patient safety, and issues with teaching and assessment methods. In response, competency based medical education approaches, with an emphasis on graduate outcomes, have been proposed as the direction for 21st century health profession education.

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  • * A retrospective study at Toulouse University Hospital from 2008 to 2018 found no decrease in NP incidence, with 56% of cases showing bacteria, mainly Streptococcus pneumoniae and Staphylococcus aureus.
  • * The study observed changes in bacterial patterns related to the vaccine's introduction, highlighting an increase in S. pyogenes and S. aureus cases, indicating the need for ongoing research and monitoring of these changes.
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  • * This experiment produced 2.05 MJ of laser energy, resulting in 3.1 MJ of total fusion yield, which exceeds the Lawson criterion for ignition, demonstrating a key milestone in fusion research.
  • * The report details the advancements in target design, laser technology, and experimental methods that contributed to this historic achievement, validating over five decades of research in laboratory fusion.
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  • - Competence committees (CCs) are a new approach in health professions education aimed at enhancing assessment decision-making by allowing trained educators to review learners' progress via structured portfolios.
  • - The implementation of CCs on a national scale is complicated due to necessary cultural shifts, logistical challenges, and the diverse skills required for success, as demonstrated by the Royal College of Physicians and Surgeons of Canada's experiences.
  • - A successful CC implementation requires balancing standardization with flexibility to meet individual program needs, using multiple engagement strategies for local adaptation, and planning for ongoing evaluation from the start.
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Metal chalcogenide nanoparticles play a vital role in a wide range of applications and are typically stabilized by organic derivatives containing thiol, amine, or carboxyl moieties, where the nonconjugated particle-ligand interfaces limit the electronic interactions between the inorganic cores and organic ligands. Herein, a wet-chemistry method is developed for the facile preparation of stable platinum chalcogenide (S, Se) nanoparticles capped with acetylene derivatives (e.g.

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This qualitative review synthesizes evidence regarding how cultural humility (i.e., critical self-reflection, challenging inequity) may be influenced by the experience of serving as a mentor in a youth program.

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To evaluate the effect of COVID-19 on Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) receipt among pregnant individuals overall and by race/ethnicity. We measured changes in WIC receipt among Medicaid-covered births (n = 10 484 697) from the US National Center for Health Statistics Natality Files (2016-2022). Our interrupted time series logistic model included a continuous monthly variable, a binary post-COVID variable, and a continuous slope shift variable.

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Efficient and robust analytical methods are needed to improve the identification and subsequent regulation of new psychoactive substances (NPS). NMR spectroscopy is a unique method able to determine the structure of small molecules such as NPS even in mixtures. However, high-field NMR analysis is associated with expensive purchase and maintenance costs.

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  • - The study investigates the effectiveness of amoxicillin-clavulanic acid for treating acute uncomplicated appendicitis (AUA) in children, given that non-operative treatment (NOT) has variable success rates.
  • - Conducted in a single medical center in Toulouse, France, it involved children aged 5-15 with a first episode of appendicitis and no serious complications, administering antibiotics both intravenously and orally.
  • - Initial success was 100%, with an 85.6% success rate maintained after two years, suggesting this antibiotic therapy could be a viable alternative to surgery, pending results from ongoing research.
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Background: Early adolescence is a critical time for preventing substance use onset. Mentoring can help protect youth via social influence; however, little is currently known about direct mentor-mentee interactions around substance use. To investigate this topic, interviews were conducted with mentors to explore their comfort with, and perceived barriers and facilitators to, discussions about substance use with youth mentees.

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