Publications by authors named "Steven Short"

Chrysochromulina parva (C. parva) is a eukaryotic freshwater haptophyte algae found in lakes and rivers worldwide. It is known to be infected by viruses, yet knowledge of the diversity and activity of these viruses is still very limited.

View Article and Find Full Text PDF

Unlabelled: Exercise targeting the trunk and hip (core) musculature is common practice in rehabilitation and performance training. Historical underpinnings of core exercise focus on providing stability to the spine, thus improving the function of the spine and extremities, while instability has been postulated to result in pathology and impaired performance. Mechanistic studies on the topic are often conflicting and indeterminate, suggesting the theoretical underpinnings of targeted core exercise may be over assumed in common practice.

View Article and Find Full Text PDF

Objective: To investigate the effects of reduced weight running on the antigravity (AG) treadmill on maintenance of normal muscle activation and reduction of plantar forces in healthy subjects.

Design: Descriptive laboratory study.

Setting: Clinical sports medicine center.

View Article and Find Full Text PDF

Background: Extracorporeal cardiopulmonary resuscitation (ECPR) can improve survival for refractory out-of-hospital cardiac arrest (OHCA). We sought to assess the feasibility of a proposed ECPR programme in Scotland, considering both in-hospital and pre-hospital implementation scenarios.

Methods: We included treated OHCAs in Scotland aged 16-70 between August 2018 and March 2022.

View Article and Find Full Text PDF
Article Synopsis
  • Hamilton Harbour, a troubled part of Lake Ontario, faces ongoing algal blooms despite efforts to improve water quality, prompting research on its bacterial communities.
  • Researchers collected and analyzed water samples biweekly during summer and fall, finding varying dominance of Actinobacteria and Cyanobacteria across seasons, indicating a complex biodiversity.
  • Functional gene analyses showed seasonal shifts in metabolic processes like photosynthesis and nitrogen fixation, providing insights that could help guide remediation strategies in the harbour.
View Article and Find Full Text PDF

Unlabelled: Symptom modification techniques have been recently dichotomously labeled as either passive or active therapies. Active therapy such as exercise has been rightfully advocated for while "passive" therapies, mainly manual therapy have been regarded as low value within the physical therapy treatment spectrum. In sporting environments where physical activity and exercise are inherent to the athletic experience, the utilization of exercise-only strategies to manage pain and injury can be challenging when considering the demands and qualities of a sporting career which include chronically high internal and external workloads.

View Article and Find Full Text PDF

Raman spectroscopy is an analytical technology for the simultaneous measurement of important process parameters, such as concentrations of nutrients, metabolites, and product titer in mammalian cell culture. The majority of published Raman studies have concentrated on using the technique for the monitoring and control of bioreactors at pilot and manufacturing scales. This research presents a novel approach to generating Raman models using a high-throughput 250 mL mini bioreactor system with the following two integrated analysis modules: a prototype flow cell enabling on-line Raman measurements and a bioanalyzer to generate reference measurements without a significant time-shift, compared to the corresponding Raman measurement.

View Article and Find Full Text PDF

Inspired by recent discoveries of the prevalence of large viruses in the environment, we reassessed the longstanding approach of filtering water through small-pore-size filters to separate viruses from cells before metagenomic analysis. We collected samples from three sites in Hamilton Harbour, an embayment of Lake Ontario, and studied 6 data sets derived from <0.45-μm- and >0.

View Article and Find Full Text PDF

Hip and groin injury (HAGI) has been reported as a source of significant time loss in elite sport. Field and court-based sports such as basketball, football, hockey, soccer, among others, require explosive multiplanar movement in single stance and high-speed change of direction. Often situations arise where sub-optimal pre-season training has occurred or congested in-season competition minimizes physiologic recovery periods between bouts of physical activity, both of which could magnify concomitant existing risk factors and increase injury risk.

View Article and Find Full Text PDF

As clinicians strive to apply evidence-based principles, team-based practitioners have identified a large gap as it relates to published research, ideal applications of evidence-based practice, and actual clinical practice related to injury prevention in elite sport within the United States. For rehabilitation professionals, especially those intimately involved in the research of injury prevention, the solution often seems quite clear and defined. However, preventing injury by implementing the latest recommendation from the most recent prospective study on the using the FIFA 11 + warm-up, a Copenhagen Adduction exercise, or a plyometric drill with elite athletes may not be as effective as was seen among the cohort used in the study.

View Article and Find Full Text PDF

The spread of infection from reservoir host populations is a key mechanism for disease emergence and extinction risk and is a management concern for salmon aquaculture and fisheries. Using a quantitative environmental DNA methodology, we assessed pathogen environmental DNA in relation to salmon farms in coastal British Columbia, Canada, by testing for 39 species of salmon pathogens (viral, bacterial, and eukaryotic) in 134 marine environmental samples at 58 salmon farm sites (both active and inactive) over 3 years. Environmental DNA from 22 pathogen species was detected 496 times and species varied in their occurrence among years and sites, likely reflecting variation in environmental factors, other native host species, and strength of association with domesticated Atlantic salmon.

View Article and Find Full Text PDF

Algae are photosynthetic organisms that drive aquatic ecosystems, e.g. fuelling food webs or forming harmful blooms.

View Article and Find Full Text PDF

Two TaqMan® qPCR assays were developed to specifically quantify the absolute abundance of Scenedesmus obliquus and Chlorella vulgaris in mixed-species algal biofilms by targeting the psbA gene. Standard curves were developed with amplification efficiencies of 92.4% and 96.

View Article and Find Full Text PDF
Article Synopsis
  • Aquatic viruses, particularly in freshwater environments, have not been thoroughly characterized, prompting a study to analyze virus communities in a freshwater harbor across different seasons and locations.
  • Community DNA was extracted and sequenced, revealing the presence of various virus groups, mainly virophages, which showed stability in their abundance despite changes in other virus types like Mimiviridae.
  • The study found that chlorophyll a was the only environmental factor significantly explaining variations in virus community composition, highlighting the ecological significance and diversity of freshwater virus assemblages.
View Article and Find Full Text PDF

Some giant viruses are ecological agents that are predicted to be involved in the top-down control of single-celled eukaryotic algae populations in aquatic ecosystems. Despite an increased interest in giant viruses since the discovery and characterization of and other viral giants, little is known about their physiology and ecology. In this study, we characterized the genome and functional potential of a giant virus that infects the freshwater haptophyte , originally isolated from Lake Ontario.

View Article and Find Full Text PDF

The scope for ecological studies of eukaryotic algal viruses has greatly improved with the development of molecular and bioinformatic approaches that do not require algal cultures. Here, we review the history and perceived future opportunities for research on eukaryotic algal viruses. We begin with a summary of the 65 eukaryotic algal viruses that are presently in culture collections, with emphasis on shared evolutionary traits (e.

View Article and Find Full Text PDF

Objectives: Can pre-hospital paramedic responders perform satisfactory pre-hospital Echo in Life Support (ELS) during the 10-s pulse check window, and does pre-hospital ELS adversely affect the delivery of cardiac arrest care.

Methods: Prospective observational study of a cohort of ELS trained paramedics using saved ultrasound clips and wearable camera videos.

Results: Between 23rd June 2014 and 31st January 2016, seven Resuscitation Rapid Response Unit (3RU) paramedics attended 45 patients in Lothian suffering out-of-hospital CA where resuscitation was attempted and ELS was available and performed.

View Article and Find Full Text PDF

Study Design Case report. Background Acute traumatic avulsion of the rectus abdominis and adductor longus is rare. Chronic groin injuries, often falling under the athletic pubalgia spectrum, have been reported to be more common.

View Article and Find Full Text PDF

To address questions about algal virus persistence (i.e., continued existence) in the environment, rates of decay of infectivity for two viruses that infect Chlorella-like algae, ATCV-1 and CVM-1, and a virus that infects the prymnesiophyte Chrysochromulina parva, CpV-BQ1, were estimated from in situ incubations in a temperate, seasonally frozen pond.

View Article and Find Full Text PDF

Haplotyping of human chromosomes is a prerequisite for cataloguing the full repertoire of genetic variation. We present a microfluidics-based, linked-read sequencing technology that can phase and haplotype germline and cancer genomes using nanograms of input DNA. This high-throughput platform prepares barcoded libraries for short-read sequencing and computationally reconstructs long-range haplotype and structural variant information.

View Article and Find Full Text PDF

Background: Quality of manual cardiopulmonary resuscitation (CPR) during extrication and transport of out-of-hospital cardiac arrest victims is known to be poor. Performing manual CPR during ambulance transport poses significant risk to the attending emergency medical services crew. We sought to use pre-hospital video recording to objectively analyse the impact of introducing mechanical CPR with an extrication sheet (Autopulse, Zoll) to an advanced, second-tier cardiac arrest response team.

View Article and Find Full Text PDF

Objectives: The aim of this study was to determine whether paramedics can be trained to perform and interpret focussed Echo in Life Support (ELS) for the assessment of cardiac movement and the recognition of reversible causes of cardiac arrest.

Methods: This study is a prospective observational pilot study. Data were collected during a 1-day course training 11 paramedics to perform ELS scans on healthy volunteers.

View Article and Find Full Text PDF
Article Synopsis
  • Out-of-hospital cardiac arrest (OHCA) is a critical emergency, and the success of survival largely depends on effective prehospital resuscitation, which includes non-technical skills like leadership and communication.
  • A pilot study called TOPCAT2 was conducted in Edinburgh to evaluate the implementation of a specialist second-tier paramedic response for OHCA, involving advanced training and simulation techniques.
  • The study found that activating the second-tier paramedic did not delay overall ambulance response times and showed a promising increase in successful outcomes, with a return of spontaneous circulation rate of 22.5% for cases attended by the trained paramedics.
View Article and Find Full Text PDF