Publications by authors named "Dalton C"

Consumers vary in their excretion of nitrogen and phosphorus, altering nutrient cycles and ecosystem function. Traditional mass balance models that focus on dietary and tissue nutrients have poorly explained such variation in excretion. Here, we contrast diet and tissue nutrient models for nutrient excretion with predation risk, an often overlooked factor, using the Trinidadian guppy (Poecilia reticulata) as our model system.

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  • FN (fibronectin) fibrils are crucial for processes like embryonic development and wound healing, but their mechanical properties are not well understood.
  • A new system allows for the measurement of cell-derived FN fibrils, revealing three types of elasticity (linear, strain-hardening, and nonlinear) and showing that fibril behavior changes with repeated stretching.
  • The average elasticity of these fibrils is about 8 MPa, and they display time-dependent viscoelastic behavior, which could deepen our knowledge of cellular mechanics in development and fibrotic diseases.
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Background/objectives: Rapid and accurate pathogen identification is essential for the proper management of patients with infectious gastroenteritis, as well as for a better control of disease outbreaks. This observational, non-interventional, single-site study evaluated the diagnostic accuracy of LiquidArray Gastrointestinal VER 1.0, a multiplex PCR syndromic panel capable of detecting up to 26 clinically relevant enteropathogens.

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We report the use of porous organic layers in two-dimensional hybrid organic-inorganic perovskites (HOIPs) to facilitate permanent small molecule intercalation and new post-synthetic modifications. While HOIPs are well-studied for a variety of optoelectronic applications, the ability to manipulate their structure after synthesis is another handle for control of physical properties and could even enable use in future applications. If designed properly, a porous interlayer could facilitate these post-synthetic transformations.

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Pharmacogenomic (PGx) testing can help personalise psychiatric prescribing and improve on the currently adopted trial-and-error prescribing approach. However, widespread implementation is yet to occur. Understanding factors influencing implementation is pertinent to the psychiatric PGx field.

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  • Graft versus host disease (GVHD) happens to about 40%-60% of people who get a stem cell transplant, and it can be very serious, killing about 15% of those people.
  • *Some people can get a rare and severe form called sclerodermatous GVHD, which can cause a lot of health problems.
  • *The article shares a patient's personal story about what it’s like to live with this disease.
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Protein misfolding and aggregation are cardinal features of neurodegenerative disease (NDD) and they contribute to pathophysiology by both loss-of-function (LOF) and gain-of-function (GOF) mechanisms. This is well exemplified by TDP-43 which aggregates and mislocalizes in several NDDs. The depletion of nuclear TDP-43 leads to reduction in its normal function in RNA metabolism and the cytoplasmic accumulation of TDP-43 leads to aberrant protein homeostasis.

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Pulmonary delivery of antibiotics is an effective strategy in treating bacterial lung infection for cystic fibrosis patients, by achieving high local drug concentrations and reducing overall systemic exposure compared to systemic administration. However, the inherent anatomical lung defense mechanisms, formulation characteristics, and drug-device combination determine the treatment efficacy of the aerosol delivery approach. In this study, we prepared a new tobramycin (Tobi) dry powder aerosol using excipient enhanced growth (EEG) technology and evaluated the in vitro and in vivo aerosol performance.

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  • The study aimed to assess how common metabolic syndrome is among clients undergoing physiotherapy in private practices in Australia and identify factors associated with it, as well as clients' readiness for lifestyle changes.
  • Involving 230 participants, the findings revealed that 37% had metabolic syndrome, and significantly, most were unaware of their condition. It was linked to older age and lower socio-economic status.
  • The research emphasizes the importance of screening for metabolic risk factors in primary care settings, suggesting that physiotherapists can play a key role in identifying and addressing these health issues to aid in chronic disease prevention.
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Objectives: To determine the knowledge, attitudes, and current practice of primary care physiotherapists in recognising and managing clients with metabolic syndrome.

Design: Mixed-methods research design comprising an online survey and focus groups.

Participants: Australian and English physiotherapists (n = 183) working in a primary care setting responded to the survey.

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Background: Prescribing drugs for psychosis (antipsychotics) is challenging due to high rates of poor treatment outcomes, which are in part explained by an individual's genetics. Pharmacogenomic (PGx) testing can help clinicians tailor the choice or dose of psychosis drugs to an individual's genetics, particularly psychosis drugs with known variable response due to CYP2D6 gene variants ('CYP2D6-PGx antipsychotics').

Aims: This study aims to investigate differences between demographic groups prescribed 'CYP2D6-PGx antipsychotics' and estimate the proportion of patients eligible for PGx testing based on current pharmacogenomics guidance.

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The Post Covid-19 Condition (commonly known as Long Covid) has been defined by the World Health Organisation as occurring in individuals with a history of probable or confirmed SARS CoV 2 infection, usually within 3 months from the onset of acute Covid-19 infection with symptoms that last for at least two months which cannot be explained by an alternative diagnosis. Long Covid is associated with over two hundred recognised symptoms and affects tens of millions of people worldwide. Widely reported reductions in quality of life(QoL) and functional status are caused by extremely sensitive and cyclical symptom profiles that are augmented following exposure to physical, emotional, orthostatic, and cognitive stimuli.

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Cardio-respiratory fitness (CRF) is well-established in the clinical domains as an integrative measure of the body's physiological capability and capacity to transport and utilise oxygen during controlled bouts of physical exertion. Long COVID is associated with >200 different symptoms and is estimated to affect ∼150 million people worldwide. The most widely reported impact is reduced quality of life and functional status due to highly sensitive and cyclical symptoms that manifest and are augmented following exposure to physical, emotional, orthostatic, and cognitive stimuli, more commonly known as post-exertional symptom exacerbation (PESE) which prevents millions from engaging in routine daily activities.

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Objective: To assess the perceived benefits of a novel educational approach for otolaryngology trainees: a virtual reality temporal bone simulator drilling competition.

Methods: Regional otolaryngology trainees participated in the competition. Drilling activities using the Voxel-Man TempoSurg simulator were scored by experts.

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  • - Orf virus, linked to severe skin lesions in muskoxen and contributing to population declines, was studied in Canadian Arctic muskoxen to assess its genetic diversity and prevalence alongside herpesvirus.
  • - Tissue samples from 60 muskoxen, collected between 2015 and 2017, revealed 11 animals with lesions consistent with orf virus infection, while 33 showed evidence of muskox rhadinovirus 1, indicating a high rate of co-infection.
  • - Phylogenetic analysis showed a unique strain of orf virus endemic to muskoxen in the region, but no significant histological evidence of disease caused by herpesvirus was found, suggesting it may remain subclinical in affected animals. *
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Purpose: To present a synthesis of evidence related to the factors influencing communication partners' use of augmentative and alternative communication with persons with severe/profound intellectual disability.

Materials And Methods: An integrative review guided by five steps; problem identification, literature search, data evaluation, data analysis and presentation was undertaken. In accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement, nine databases were searched, 1,342 studies were screened against the eligibility criteria, and 15 studies underwent thematic analysis.

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Background: Surgical patients with previous depression frequently experience postoperative depressive symptoms. This study's objective was to determine the feasibility of a placebo-controlled trial testing the impact of a sustained ketamine infusion on postoperative depressive symptoms.

Methods: This single-centre, triple-blind, placebo-controlled randomised clinical trial included adult patients with depression scheduled for inpatient surgery.

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Background: Neuropsychiatric symptoms associated with long COVID are a growing concern. A proposed pathophysiology is increased inflammatory mediators. There is evidence that typical serotonergic antidepressants have limited efficacy in the presence of inflammation.

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Femtosecond laser material processing (FLMP) was used to make an X-ray mask in a 500 µm thick tungsten sheet without the use of any chemical etch methods. The laser produced an 800 nm wavelength at a 1 kHz repetition rate and a pulse width of 100 fs. The laser beam arrival at the tungsten sheet was synchronized to a computer numerically controlled (CNC) stage that allowed for motion in the XYZθ directions.

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Caveolin-1 (Cav1) is a vital protein for many cellular processes and is involved in both the positive and negative regulation of these processes. Cav1 exists in multiple cellular compartments depending on its role. Of particular interest is its contribution to the formation of plasma membrane invaginations called caveolae and its involvement in cytoskeletal interactions, endocytosis, and cholesterol trafficking.

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A single bout of aerobic exercise benefits executive function (EF). A potential mechanism for this benefit is an exercise-mediated increase in cerebral blood flow (CBF) that elicits vascular endothelial shear-stress improving EF efficiency. Moderate intensity continuous aerobic exercise (MCE) asymptotically increases CBF, whereas continuous body weight squat-stand exercise (SSE) provides a large amplitude oscillatory response.

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  • There are more older people now, and new ways to help them are being created, so healthcare workers need to learn about the latest research.
  • The article talks about starting a journal club in a care home where workers can share ideas and improve skills like thinking, presenting, and communicating.
  • The authors believe that having a learning atmosphere in places that care for older people is super important, and a journal club helps workers stay informed and provide better care.
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The present study examined types of scenarios in which Guam youths are offered tobacco-namely, combustible cigarettes and e-cigarettes-and betel (areca) nut. We conducted 10 focus groups with public middle school students ( = 34) from Guam. Results suggested that the types of offer scenarios of combustible cigarettes, e-cigarettes, and betel nut referenced by the students fall into two categories-direct-relational offers and indirect-contextual offers.

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  • The first documented case of COVID-19 transmission in a gym in Australia occurred in 2020, highlighting the risk of virus spread in fitness environments.
  • A study identified five COVID-19 cases linked to a gym in Western Sydney, revealing that one person transmitted the virus to four others in an enclosed space on July 7, 2020.
  • The findings suggest gyms are high-risk venues for COVID-19 transmission, recommending improved ventilation and more space to mitigate the spread of the virus, especially with severe variants.
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