Publications by authors named "Kenny D"

There is a need for rigorous and scientifically-based testing standards for existing and new enteric methane mitigation technologies, including antimethanogenic feed additives (AMFA). The current review provides guidelines for conducting and analyzing data from experiments with ruminants intended to test the antimethanogenic and production effects of feed additives. Recommendations include study design and statistical analysis of the data, dietary effects, associative effect of AMFA with other mitigation strategies, appropriate methods for measuring methane emissions, production and physiological responses to AMFA, and their effects on animal health and product quality.

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Background: Covered stent correction for a sinus venosus atrial septal defect (SVASD) was first performed in 2009. This innovative approach was initially viewed as experimental and was reserved for highly selected patients with unusual anatomic variants. In 2016, increasing numbers of procedures began to be performed, and in several centers, it is now offered as a standard of care option alongside surgical repair.

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ECMO is becoming widely used as a life-saving measure for critically ill patients. However, there is limited data on pharmacokinetics and the dosing of beta-lactam antibiotics in ECMO. In this study, we evaluated the serum concentrations of cefepime in patients on ECMO to determine the impact of ECMO circuitry and to guide therapeutic dosing.

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Background: Advances in technology have increased the ease of reporting hospital incidents, resulting in large amounts of qualitative descriptive data. Health services have little experience analysing these data at scale to incorporate into routine reporting.

Objective: We aimed to explore the feasibility of applying a semi-automated content analysis (SACA) tool (Leximancer™) to qualitative descriptions of system-wide hospital incidents to provide insights into safety issues at all health service levels.

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The aim of this experiment was to evaluate the effect of the level of prior nutritional restriction during backgrounding in Angus steers on methane (CH) emissions, diet digestibility, rumen fermentation, and ruminal microbiome under either a forage or grain-based finishing diet. Eighty steers (body weight [BW]: 444 ± 39 kg, age: 18 ± 1 mo) were blocked and randomly assigned within the block to either an (0.6 to 0.

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Calcium peroxide (CaO) offers potential as an anti-methanogenic dietary feed material. The compound has been previously assessed in vitro, with methane (CH) reductions of > 50% observed. The objective of this study was to assess dietary supplementation of CaO at different inclusion levels and physical formats in a finishing beef system on the effects of animal performance, gaseous emissions, rumen fermentation parameters and digestibility.

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Objective: This study aimed to explore relationships between parental stress, coping, and outcomes for parents of infants with CHD, via observational approach reflecting domains of the Parental Stress and Resilience in CHD (PSRCHD) model.

Methods: Fifty-five parents of 45 infants with CHD completed questionnaires with measures of parental stress, Problem-Focused Coping (PFC), Emotion-Focused Coping (EFC), Avoidant Coping (AC), mental health (symptoms of anxiety and symptoms of depression), post-traumatic growth (PTG) and quality of life (QoL). Demographic and infant clinical data were obtained.

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Background: Feed costs account for a high proportion of the variable cost of beef production, ultimately impacting overall profitability. Thus, improving feed efficiency of beef cattle, by way of determining the underlying genomic control and selecting for feed efficient cattle provides a method through which feed input costs may be reduced whilst also contributing to the environmental sustainability of beef production. The rumen microbiome dictates the feed degradation capacity and consequent nutrient supply in ruminants, thus potentially impacted by feed efficiency phenotype.

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Introduction: The Medical Device Regulation (EU)745/2017, increased the regulatory requirements and thus the time and the cost associated with marketing medical devices. For a majority of medical device manufacturers, this has lead to reconsiderations of their product portfolio. The risk of important or essential devices being withdrawn is particularly relevant for pediatric patients and other rare disease patients where limited numbers of devices can be sold and hence the investment needed may not be recovered.

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Identifying and breeding cattle that are more feed efficient is of great benefit to beef production. Additionally, it is crucial that genes contributing to feed efficiency are robust across varying management settings including dietary source as well as being relevant across contrasting breeds of cattle. The aim of this study was to determine miRNAs that are contributing to the expression of residual feed intake (RFI) across two breeds and dietary sources.

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Article Synopsis
  • * The study successfully identified and scored indicators relevant to farmers, focusing on their practicality, data availability, and policy influence, with high scores in the Emissions to air theme and the Profitability theme showing strong economic outcomes.
  • * The research highlights the importance of an educated workforce in crop and livestock systems, emphasizing the need for surveys involving farmers to align policies and actions with sustainable agricultural practices.
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Background: Enhanced nutrition during the early calfhood period has been shown to lead to earlier pubertal development in heifer calves. This is of interest as earlier pubertal onset can subsequently facilitate earlier calving which can economically benefit production systems. Reproductive development in heifers is regulated by the hypothalamic-pituitary-ovarian signalling pathway.

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Background: Summer scour syndrome (SSS) is a recently identified pathological condition affecting weaned dairy and dairy-beef calves during their first grazing season in Ireland. The syndrome is characterised by diarrhoea, weight loss, weakness, and can ultimately lead to death in some calves. Oral and oesophageal ulcerations are present in some cases.

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We present the cases of 2 children diagnosed with extrahepatic portosystemic shunts, a very rare vascular anomaly, on investigation of cardiac symptomatology. Poorly developed portal venous systems necessitated staged shunt occlusion. This was achieved using atrial flow regulator devices positioned in an inferior vena cava stent platform performed in the cardiac catheterization laboratory.

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Article Synopsis
  • * A survey of 79 program directors revealed notable differences in training pathways and case volumes, with a recommendation for trainees to complete at least 400 total cases, including 250 interventional cases.
  • * Ongoing mentorship is essential for mastering complex procedures, and external mentorship programs are suggested to enhance support for new interventionalists and improve patient care in congenital heart disease.
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We report a case of anomalous origin of the right coronary artery from the pulmonary artery in a patient with pulmonary atresia, ventricular septal defect, and major aortopulmonary collateral arteries. The diagnosis was made during a proposed hybrid approach to stent the native right ventricular outflow tract, and an alternative surgical strategy was created.

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Background: Mental health services are available for young people involved with the criminal justice system. However, they have unmet mental health needs after the expiration of criminal justice supervision.

Objective: To determine the incidence rate and identify predictors of psychiatric hospitalisations within 24 months after the expiration of criminal justice supervision among young people involved with the New South Wales (NSW) criminal justice system.

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The aim of this study was to determine the rate of aspirin responsiveness in a cohort of pediatric patients with in situ xenograft valved right ventricle to pulmonary artery (RV-PA) conduits and/or transcatheter valve replacements (TVR). Aspirin is routinely prescribed to these patients. Optimizing anti-platelet therapy could promote valve longevity and reduce the risk of infective endocarditis in this at-risk group.

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Cardiac rhabdomyomas are the most common benign pediatric heart tumor in infancy, which are commonly associated with tuberous sclerosis complex (TSC). Most rhabdomyomas are asymptomatic and spontaneously regress over time. However, some cases especially in neonates or small infants can present with hemodynamic instability.

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Background: Provision of feed is a major determinant of overall profitability in beef production systems, accounting for up to 75% of the variable costs. Thus, improving cattle feed efficiency, by way of determining the underlying genomic control and subsequently selecting for feed efficient cattle, provides a method through which feed input costs may be reduced. The objective of this study was to undertake gene co-expression network analysis using RNA-Sequence data generated from Longissimus dorsi and liver tissue samples collected from steers of two contrasting breeds (Charolais and Holstein-Friesian) divergent for residual feed intake (RFI), across two consecutive distinct dietary phases (zero-grazed grass and high-concentrate).

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Various transcatheter interventions for the right ventricular outflow tract (RVOT) have been introduced and developed in recent decades. Transcatheter pulmonary valve perforation was first introduced in the 1990s. Radiofrequency wire perforation has been the approach of choice for membranous pulmonary atresia in newborns, with high success rates, although complication rates remain relatively common.

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Research into the potential use of various dietary feed supplements to reduce methane (CH4) production from ruminants has proliferated in recent years. In this study, two 8-wk long experiments were conducted with mature ewes and incorporated the use of a variety of natural dietary feed supplements offered either independently or in combination. Both experiments followed a randomized complete block design.

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