Facebook recruitment: understanding research relations Prior to data collection.

This article considers the multiple relations that emerge from and between Facebook commenters, as well as between commenters, researchers, and the research project during recruitment. To do so, we draw on our experiences of recruiting individuals who have concerns about or are opposed to a range of recent social and legal changes in 'post-equality' contexts. Understanding research as co-created rather than 'collecting data from' participants, we consider the researcher, commenters, and Facebook technologies as active agents, and ask how the emergent relationalities between these agents shapes the social media recruitment process.

Clustering Sequence Data with Mixture Markov Chains with Covariates Using Multiple Simplex Constrained Optimization Routine (MSiCOR).

Mixture Markov Model (MMM) is a widely used tool to cluster sequences of events coming from a finite state-space. However, the MMM likelihood being multi-modal, the challenge remains in its maximization. Although Expectation-Maximization (EM) algorithm remains one of the most popular ways to estimate the MMM parameters, however, convergence of EM algorithm is not always guaranteed.

Source-specific bias correction of US background and anthropogenic ozone modeled in CMAQ.

United States (US) background ozone (O) is the counterfactual O that would exist with zero US anthropogenic emissions. Estimates of US background O typically come from chemical transport models (CTMs), but different models vary in their estimates of both background and total O. Here, a measurement-model data fusion approach is used to estimate CTM biases in US anthropogenic O and multiple US background O sources, including natural emissions, long-range international emissions, short-range international emissions from Canada and Mexico, and stratospheric O.

Functional principal component analysis with informative observation times.

Functional principal component analysis has been shown to be invaluable for revealing variation modes of longitudinal outcomes, which serve as important building blocks for forecasting and model building. Decades of research have advanced methods for functional principal component analysis, often assuming independence between the observation times and longitudinal outcomes. Yet such assumptions are fragile in real-world settings where observation times may be driven by outcome-related processes.

How dairy heifers initially respond to freestalls: The effect of neck-rail placement.

Dairy heifers are often kept on open packs early in life and later transitioned to freestalls. The neck rail in freestalls acts as a barrier intended to prevent animals from entering too far in the stall, with the aim of improving stall cleanliness. Unfortunately, this barrier can hinder stall use and may be a hazard to animals due to physical contact, perhaps especially when animals first learn to use the stall.

A methodological approach to assess the ropy character of stirred acid dairy gels based on the measure of adhesiveness.

This work aims to evaluate the potential and limits of adhesiveness measurement using a texturometer to assess the ropiness of acid dairy gels for starter selection. Commercial yogurts of various formulations and textures were used to assess the ability of adhesiveness to detect ropiness and to compare performance of different probes. Chemically acidified gels using different concentrations of glucono-delta-lactone (GDL) were tested to determine the effect of pH on adhesiveness.

Effect of weaning strategies on biosynthesis of oxylipids in Holstein dairy calves.

The aim of this study was to determine the effect of the weaning calves at 2 ages (early vs. late) and 2 weaning paces (abrupt over 3 d vs. gradual over 14 d) on plasma oxylipids.

Insulin, IGF-I, and lactoferrin concentrations and yields and their associations with other components within colostrum, transition, and whole milk of primiparous and multiparous Holstein cattle.

The primary objective of the study was to characterize concentrations and yields of lactoferrin (LF), insulin, and IGF-I in colostrum, transition milk (TM), and whole milk (WM) of multiparous (MP) and primiparous (PP) cows. A secondary objective was to determine associations between colostrum and TM components (fat, protein, lactose), IgG, and bioactive compounds (oligosaccharides, LF, insulin, IGF-I; defined as compounds present in micro quantities that stimulate physiological responses systemically or locally within the neonate). Holstein cows (10 MP and 10 PP) were assigned to the study at calving and colostrum was collected 5.

Stocking density at feeders and drinkers and temporal feed restriction affects dairy cows' drinking behavior.

Water is an essential resource for dairy cows, and its consumption is closely linked to feed intake. Social competition can lead to changes in drinking behavior, especially for subordinate cows. We studied how changes in stocking density at the feeder (1 or 2 cows per feeder), and drinker (6 or 12 cows per drinker) and a temporal feed restriction (14- or 24-h access) affects drinking in 4 groups of 6 cows each, following a Latin square design.

"When you're in the office, it means you managed to get somewhere": An interpretive descriptive study of the perceptions of adolescents accessing primary care for mental health services.

Objective: Primary care offers an entry point into the health care system for adolescents experiencing mental illnesses. This study explored the perceptions of adolescents with an anxiety or mood disorder accessing primary care for mental health services.

Methods: Qualitative interpretive descriptive design was employed.

Performance modulations phase-locked to action depend on internal state.

Previous studies have shown that perceptual performance can be modulated at specific frequencies phase-locked to self-paced motor actions, but findings have been inconsistent. To investigate this effect at the population level, we tested 50 participants who performed a self-paced button press followed by a threshold-level detection task, using both fixed- and random-effects analyses. Contrary to expectations, the aggregated data showed no significant action-related modulation.

Assessing river discharge dynamics through relative surface water extent changes in river basins.

Surface water in rivers is vital for human society. However, our current understanding of the dynamics and drivers of river flows relies predominantly on stream gauging data, which are limited in spatial coverage and involve significant costs. Remote sensing techniques have emerged as complementary tools for monitoring river discharge, but these satellite-based methods often require complex data processing.

Second-line treatment patterns and outcomes in advanced HCC after progression on atezolizumab/bevacizumab.

Background & Aims: Atezolizumab/bevacizumab (A/B) is now a standard first-line treatment for advanced hepatocellular carcinoma (HCC), but the optimal second-line regimen is not known. We evaluated real-world treatment patterns and outcomes to investigate factors associated with post-progression survival (PPS).

Methods: In this multicenter, international, retrospective study, we examined clinical characteristics and outcomes of patients with advanced HCC who progressed on first-line A/B.

Pre- and post-pandemic comparisons in cardiovascular markers: a population-based study.

Introduction: The COVID-19 pandemic, starting in 2020, raised concerns about potential long-term health impacts, including its effects on cardiovascular health and related biomarkers. This study part of the Bus Santé in Geneva, Switzerland, compared cardiovascular and metabolic profiles pre- (2016-2019) and post-pandemic (2023-2024) among individuals aged 30-75.

Methods: Participants completed questionnaires and underwent a clinical visit, including a physical examination and fasting blood test to assess lipid and glycemic profiles.

A systematic review of systematic reviews comparing simple trapeziectomy versus trapeziectomy with ligament reconstruction and tendon interposition for trapeziometacarpal osteoarthritis.

Background: The outcomes of simple trapeziectomy (T) versus trapeziectomy with ligament reconstruction and tendon interposition (LRTI) for trapeziometacarpal (TMC) osteoarthritis have been compared in several systematic reviews (SRs) with conflicting results across the various outcomes studied. Despite a lack of conclusions regarding the superiority of one treatment versus the other, LRTI remains the most popular surgical option. This raises the questions of whether published SRs are of high methodological quality, and whether discordant conclusions can be attributed to differences in methodologic quality.

Patient Perspectives on Interdisciplinary Peripheral Nerve Trauma Care.

Peripheral nerve injury (PNI) is a complex, debilitating condition that is increasingly being treated in interdisciplinary clinics. Patients see peripheral nerve surgeons, neurologists, physiatrists, and electrodiagnostic technicians in a single encounter. No studies have evaluated patient experience within this unique interdisciplinary care model.

Immediate Versus Delayed Mobilization After Cubital Tunnel Release Surgery: A Systematic Review and Meta-analysis.

It is unknown whether early mobilization after cubital tunnel decompression improves functional outcomes without increasing complication risks. This systematic review aims to evaluate the effectiveness of early mobilization compared to delayed mobilization of the elbow after ulnar nerve decompression. Randomized controlled trials (RCTs) and observational studies comparing adults who received early mobilization or late mobilization were included.

The Calgary Kids' Hand Rule: External Validation of a Prediction Model to Triage Pediatric Hand Fractures.

The Calgary Kids' Hand Rule (CKHR) is a clinical prediction rule intended to guide referral decisions for pediatric hand fractures presenting to the emergency department, identifying "complex" fractures that require surgical referral and optimizing care through better matching of patients' needs to provider expertise. The objective of this study was to externally validate the CKHR in two different tertiary pediatric hospitals in Canada. We partnered with British Columbia Children's Hospital (BCCH) and the Children's Hospital of Eastern Ontario (CHEO) to externally validate the CKHR using data from retrospective cohorts of pediatric hand fractures (via electronic medical record and x-ray review).

Exploring Skin Tone Diversity in a Plastic Surgery Resident Education Curriculum.

Gaps remain in surgical education regarding the representation of skin tone diversity. To improve equity and prevent misdiagnosis leading to worsened health outcomes, efforts must be made to ensure educational photographs are representative of the diverse patient populations plastic surgery residents will be treated in their future practices. Four study investigators examined 96 h of recorded lecture seminars from a Canadian plastic surgery resident education curriculum from May 2020 to December 2021.

Fat Grafting Versus Implants: Who's Happier? A Systematic Review and Meta-analysis.

Breast implants were first introduced in the 1960s and have long been used for augmentation and reconstructive breast surgery. More recently, fat grafting for breast augmentation has gained popularity due to the 'natural' outcome and lack of implant-related complications. The aim of this study was to conduct a systematic review and meta-analysis comparing patient-related outcome measures between fat grafting and implant-based primary augmentation using the validated BREAST-Q questionnaire.

A Prospective Analysis of Opioid Prescription, Consumption, and Psychometric Correlations in Outpatient Plastic Surgery Procedures.

Understanding opioid prescription, consumption, and the factors related to these is important to prescribe opioids responsibly. Our primary purpose is to determine the factors predicting opioid prescription, and the secondary purpose is to examine the factors predicting opioid tablet consumption. A prospective cohort was evaluated using 2 surveys.

A Prospective Clinical Trial Evaluating the Efficacy and Safety of Non-Animal Stabilized Hyaluronic Acid Injections for Non-Surgical Rhinoplasty.

Non-surgical rhinoplasty with hyaluronic acid (HA) filler is a three-dimensional reshaping technique that achieves tissue enhancement by placing HA deep to nasal skin. Due to its unique rheology, Restylane® Lyft (HA-L, Galderma, Uppsala, Sweden) may be particularly well-suited for injection rhinoplasty, as it has high gel firmness (G') for strong structural support with minimal integration propensity. A prospective clinical trial was conducted to evaluate HA-L use for non-surgical rhinoplasty.

An Investigation of Gender Representation and Collaboration in Academic Plastic Surgery Research.

Gender disparities in academic leadership positions may be influenced by several factors, including research productivity. We aimed to describe the publication gender gap in major plastic surgery journals, assess gender-related and gender-neutral research publications, and identify any potential gender disparities associated with publication characteristics. For this cross-sectional study, we reviewed all original research publications in , and from 2014 through 2018.

Current Practices and Trends of Plastic and Oncoplastic Breast Surgeons in Canada.

There is a lack of previous studies investigating oncoplastic practice trends for breast reconstruction in Canada, particularly from the plastic surgeon perspective. Given the rising popularity of oncoplastic techniques, this study aimed to identify current practice trends for breast and plastic surgeons in Canada. A cross-sectional survey study of breast and plastic surgeons performing oncoplastic surgery across Canada was conducted.