Publications by authors named "Simpson M"

Understanding the relative contributions of environmental, behavioural and social factors to reproductive success is crucial for predicting population dynamics of seabirds. However, these factors are often studied in isolation, limiting our ability to evaluate their combined influence. This study investigates how marine environmental variables, foraging behaviour and social factors (divorce), influence reproductive success in little penguins () over 13 breeding seasons.

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In the process of studying the species and its varieties, we discovered a unique taxon of the genus that resembles but differs in having a mostly densely white-strigose stem vestiture (sometimes with spreading trichomes) and tuberculate to muricate nutlets with often whitish tubercles that are, in comparison with typical , larger, with a wider base and more pointed apex, and more densely spaced. We believe this form to be different enough to describe as a new species, . This new species occurs in southwestern North America: in California and Arizona of the United States and in northern Baja California, Mexico.

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We propose a simple mathematical model to describe the mechanical relaxation of cells within a curved epithelial tissue layer represented by an arbitrary curve in two-dimensional space. This model generalises previous one-dimensional models of flat epithelia to investigate the influence of curvature for mechanical relaxation. We represent the mechanics of a cell body either by straight springs, or by curved springs that follow the curve's shape.

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As virtual reality (VR) sports training apps start to become more mainstream, it is important that human performance is measured from VR gameplay interaction data in a more meaningful way. is a VR training app that is played by over 100,000 users around the world. Many of those players are aspiring goalkeepers who want to use the app as a new way to train and improve their general goalkeeping performance.

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Background: The impact of light exposure on mental health is increasingly recognised. Modifying inpatient evening light exposure may be a low-intensity intervention for mental disorders, but few randomised controlled trials (RCTs) exist. We report a large-scale pragmatic effectiveness RCT exploring whether individuals with acute psychiatric illnesses experience additional benefits from admission to an inpatient ward where changes in the evening light exposure are integrated into the therapeutic environment.

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Over the last three decades, the receipt of formal sexuality education has declined, with half of adolescents nationwide receiving the minimum Healthy People standard of sexuality education from 2015 to 2019. Further, racial and geographic inequities in sexuality education remain, with Black women and girls more likely to receive abstinence-only-until-marriage instruction. We sought to describe Black women's sexual education in two southern states, North Carolina and Georgia.

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Article Synopsis
  • Microplastics are increasingly recognized for their ability to accumulate pollutants, including herbicides known as ionic liquids (ILs), affecting how these substances migrate between water and land ecosystems.
  • The study synthesized two types of herbicidal ILs and examined their interaction with polyethylene (PE) microplastics, finding that the different components behave independently and can pose environmental risks.
  • Results show that microplastics can hinder the breakdown of these herbicides and potentially increase their toxicity to soil bacteria, emphasizing the need for further investigation into the ecological impacts of microplastic accumulation.
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Objective: Given the high risk of functional loss and revisits among older adults presenting to the emergency department (ED), there is a need to understand how post-ED discharge outpatient physical therapy affects outcomes. This study sought to examine patient demographics and their association with outpatient physical therapy utilization after ED discharge and physical therapy attendance with 30-day ED revisits among older adults discharged to home.

Methods: In this retrospective cohort study, we analyzed data from 1395 older adults (65 years old and older) who had a referral to outpatient physical therapy upon discharge from 15 EDs between January 2021 and December 2022.

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  • Sequential behavior involves choosing and controlling movements precisely in time and space, but how we learn these sequences isn’t fully understood.
  • In experiments using the serial reaction time task with subliminal primes, it was found that congruent primes boosted learning of motor sequences and reduced response times, while incongruent primes hindered learning.
  • These findings suggest that the effectiveness of learning motor sequences can be influenced by the congruency of subliminal cues, operating below our conscious awareness, highlighting a complicated relationship between prime types and sequence learning efficiency.
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Successful pregnancy relies directly on the placenta's complex, dynamic, gene-regulatory networks. Disruption of this vast collection of intercellular and intracellular programs leads to pregnancy complications and developmental defects. In the present study, we generated a comprehensive, spatially resolved, multimodal cell census elucidating the molecular architecture of the first trimester human placenta.

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In vitro cell biology experiments are routinely used to characterize cell migration properties under various experimental conditions. These experiments can be interpreted using lattice-based random walk models to provide insight into underlying biological mechanisms, and continuum limit partial differential equation (PDE) descriptions of the stochastic models can be used to efficiently explore model properties instead of relying on repeated stochastic simulations. Working with efficient PDE models is of high interest for parameter estimation algorithms that typically require a large number of forward model simulations.

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This article offers a reflective retrospective of the literature and practice on the sector. The authors have joined to share our experience and knowledge on the interface between the formal solid waste sector and informal recyclers and operators. Together, we discuss where this discourse has come from, where it is now, and where we, as practitioners, think it is going.

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Background: With the evolution of residency applications and the myriad of roles that program coordinators (PCs) undertake, there is a gap in the medical education literature surrounding PCs' role in the resident selection process.

Objective: We sought to quantify the role of Dermatology residency PCs in the resident selection process and the unique perspective they gain from their interactions with applicants.

Methods: PC- and program director (PD)-specific surveys were designed and distributed in 2023 via email to Dermatology PDs via the Association of Professors of Dermatology (APD) listserv and to PCs via email using the contact information found on publicly available residency program websites.

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Aims: To describe the clinical practice and educational preparation of heart failure (HF) nurses across Europe and determine the key differences between countries.

Methods And Results: A survey tool was developed, in English, by the Heart Failure Association Patient Care committee of the European Society of Cardiology (ESC). It was translated into eight languages, before electronically disseminated by nurse ambassadors, presidents of HF national societies and through social media.

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Purpose Of Review: The aim of this study was to outline recent developments in calcium channel blocker (CCB) poisoning. The dihydropyridine CCB amlodipine is commonly prescribed in the United States, and amlodipine poisoning is increasing in frequency, presenting new challenges for clinicians because current paradigms of CCB poisoning management arose from literature on non-dihydropyridine agents.

Recent Findings: Amlodipine is now the most common CCB involved in poisoning.

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Objective: To describe a case of concurrent septic pyothorax, peritonitis, and cholecystitis due to Staphylococcus pseudintermedius in a dog.

Case Summary: A 10-year-old neutered male, medium-sized, mixed-breed dog presented with an acute abdomen. Initial investigations found the presence of a septic pyothorax, septic peritonitis, and bacterial cholecystitis.

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Remote sensing technologies have the potential to support monitoring of floating plastic litter in aquatic environments. An experimental campaign was carried out in a large-scale hydrodynamic test facility to explore the detectability of floating plastics in ocean waves, comparing and contrasting different microwave and optical remote sensing technologies. The extensive experiments revealed that detection of plastics was feasible with microwave measurement techniques using X and Ku-bands with VV polarization at a plastic threshold concentration of 1 item/m or 1-10 g/m.

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Article Synopsis
  • A new species named D.A.York & M.G.Simpson has been identified in serpentine barrens within the Shasta-Trinity National Forest, California, with an additional population found in Lake County.
  • The new species shares similarities with two others, characterized by large corolla widths and specific nutlet shapes, yet differs in stem height, cymule structure, and nutlet count per fruit.
  • This species is rare, adding to the group of eight known serpentine-adapted species, with ongoing research indicating a trend of convergent evolution in these plants' adaptations to their unique habitat.
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Roots contribute a large fraction of CO efflux from soils, yet the extent to which global change factors affect root-derived fluxes is poorly understood. We investigated how red maple (Acer rubrum) and red oak (Quercus rubra) root biomass and respiration respond to long-term (15 years) soil warming, nitrogen addition, or their combination in a temperate forest. We found that ecosystem root respiration was decreased by 40% under both single-factor treatments (nitrogen addition or warming) but not under their combination (heated × nitrogen).

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