1,155,721 results match your criteria: "Canada; Institute of Biomedical Engineering[Affiliation]"

This review aimed to assess the scope of the literature on tracking the microbial community of biofilms, focusing on the dairy farm and processing environments. The majority of studies focused on either production, storage, transport or processing of milk, while 5 combined the investigation of both production and processing facilities. Factors influencing short-term changes in dairy microbiota such as the occurrence of mastitis and season were distinguished from factors revealed through long-term studies, such as feed and weather, rather than the milking equipment.

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Objective: To examine prospectively the relationship between teething and infant sleep using objective sleep measurements.

Study Design: Over a 4-week period, 849 infants aged 3-18 months (mean = 8.4 ± 1.

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Evaluation of pre-analytical factors impacting urine test strip and chemistry results.

Clin Chem Lab Med

January 2025

Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada.

Objectives: Careful consideration of the pre-analytical process for urine examination is essential to avoid errors and support accurate results and decision-making. Our objective was to assess the impact of various pre-analytical factors on urine test strip and quantitative chemistry results, including stability, tube type, fill volume, and centrifugation.

Methods: Residual random urine specimens were identified.

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Toward a functional future for the cognitive neuroscience of human aging.

Neuron

January 2025

Center for Lifespan Psychology, Max Planck Institute for Human Development, Lentzeallee 94, 14195 Berlin, Germany; Max Planck UCL Centre for Computational Psychiatry and Ageing Research, Lentzeallee 94, 14195 Berlin, Germany and Max Planck UCL Centre for Computational Psychiatry and Ageing Research, 10-12 Russell Square, London, WC1B 5Eh, UK. Electronic address:

The cognitive neuroscience of human aging seeks to identify neural mechanisms behind the commonalities and individual differences in age-related behavioral changes. This goal has been pursued predominantly through structural or "task-free" resting-state functional neuroimaging. The former has elucidated the material foundations of behavioral decline, and the latter has provided key insight into how functional brain networks change with age.

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Facile fabrication of sensing electrode based on CoFe-MOFs/MXene for ultrasensitive detection of picomolar chloramphenicol.

Talanta

January 2025

School of Environment Science and Optoelectronic Technology, University of Science and Technology of China, Hefei, 230026, China; Institute of Solid State Physics, Hefei Institute of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China. Electronic address:

Precise detection of ultralow-level antibiotics, such as picomole, in aqueous environments is significant for human health, however, it presents a great challenge to the adsorption capacity and electrocatalytic ability of sensing materials. Here, we used a one-step hydrothermal method to in situ grow spindle-like CoFe-based metal-organic frameworks (MOFs) with a size of about 50 nm in the region of hydrophilic MXene-loading hydrophobic carbon paper. By combining MOFs with abundant adsorption sites and MXene with high conductivity, the problems of adsorption and electrons transfer of ultralow-level antibiotics have been solved, and achieving precise detection of picomole-level antibiotics.

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The key role of intensive care nurses in critical illness dysphagia assessment, prevention, and management.

Intensive Crit Care Nurs

January 2025

School of Audiology and Speech Sciences, University of British Columbia, Vancouver, BC, Canada; Department of Critical Care Medicine, University of Alberta, Edmonton, AB, Canada.

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Objectives: To build an early, prognostic model for adverse outcome in infants with hypoxic ischemic encephalopathy (HIE) receiving therapeutic hypothermia (TH) based on brain magnetic resonance images (MRI), electrophysiological tests and clinical assessments were performed during the first 5 days of life.

Methods: Retrospective study of 182 neonates with HIE and managed with TH. The predominant pattern of HIE brain injury on MRI performed following cooling was scored by neuroradiologists.

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Characterizing the vestibular control of balance in the intrinsic foot muscles.

Gait Posture

December 2024

School of Health and Exercise Sciences, The University of British Columbia Okanagan, Kelowna, British Columbia, Canada. Electronic address:

Background: To maintain standing balance, vestibular cues are processed and integrated with other sensorimotor signals to produce appropriate motor adjustments. Whole-body vestibular-driven postural responses are context-dependent and transformed based upon head and foot posture. Previous reports indicate the importance of intrinsic foot muscles during standing, but it is unclear how vestibular-driven responses of these muscles are modulated by alterations in stability and head posture.

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On the occurrence, behaviour, and fate of naphthenic acid fraction compounds in aquatic environments.

Sci Total Environ

January 2025

Department of Civil, Geological and Environmental Engineering, University of Saskatchewan, 57 Campus Dr, Saskatoon, Saskatchewan S7N 5A9, Canada; University of Lethbridge, Office of the Vice President (Research), Lethbridge, Alberta, Canada. Electronic address:

Naphthenic acids and naphthenic acid fraction compounds (NAFCs) are associated with production of unconventional petroleum resources, especially the Athabasca Oil Sands of Alberta, Canada. This complex mixture of acidic organic compounds is toxic to a variety of taxa, and so represents an important environmental management challenge. Thus, there is clear motivation to better understand the occurrence and characteristics of NAFCs in aquatic environments, their chemical behaviour, and environmental fate.

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Acute and chronic cannabis vapor exposure influences basal and stress-induced release of glucocorticoids in male and female rats.

Psychoneuroendocrinology

December 2024

Hotchkiss Brain Institute, Mathison Centre for Mental Health Research and Education, Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Cell Biology and Anatomy & Psychiatry, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada. Electronic address:

Management of stress and anxiety is often listed as the primary motivation behind cannabis use. Human research has found that chronic cannabis use is associated with increased basal cortisol levels but blunted neuroendocrine responses to stress. Preclinical research has demonstrated mixed effects of Δ-tetrahydrocannabinol (THC; the psychoactive constituent of cannabis), much of which is suggestive of dose-dependent effects; however, the predominance of this work has employed an injection method to deliver cannabis.

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How rare is rare? The first multi-centre epidemiological study of thrombotic thrombocytopenic purpura in a large Canadian city.

Transfus Apher Sci

December 2024

Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada; Department of Laboratory Medicine, St. Michael's Hospital, Toronto, ON, Canada; Division of Hematology, St. Michael's Hospital, Toronto, ON, Canada. Electronic address:

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This study investigated the occurrence of perfluoroalkyl and polyfluoroalkyl substances (PFAS), including anionic, cationic, and zwitterionic compounds, in drinking water. Between 2021-2023, an expanded list of 76 target PFAS was screened in tap water samples mainly from Canada, but also including tap water samples from the Eastern United States, Mexico, South America (Argentina), the Caribbean (Dominican Republic, Cuba), Africa (Algeria, Cameroon, Central African Republic, Morocco, Rwanda, Tunisia), Europe (France, Greece, Italy, Spain, and the United Kingdom) and Asia (Japan, Vietnam, Iran, and Türkiye). An additional ∼ 200 suspect-target PFAS were screened using high-resolution Orbitrap mass spectrometry.

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For some people the experience of visual imagery is lacking, a condition recently referred to as aphantasia. So far, most of the studies on aphantasia rely on subjective reports, leaving the question of whether mental images can exist without reaching consciousness unresolved. In the present study, the formation of mental images was estimated in individuals with aphantasia without explicitly asking them to generate mental images.

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Spatial unfolding of an extended La-140 source within a 0.5 km-wide exclusion zone using Compton gamma imaging measurements.

J Environ Radioact

January 2025

Canadian Hazards Information Service, Natural Resources Canada, Ottawa, Ontario, Canada.

Results from applying an advanced spatial-unfolding technique to outdoor-trial data acquired with a Silicon photomultiplier-based Compton Telescope for Safety and Security (SCoTSS) gamma imager during perimeter survey of a distributed La-140 source lying within a 500 m x 500 m exclusion zone are presented. A synthetic-data version of the experiment was also modelled using Monte Carlo simulations and reconstructed. For both experimental and synthetic data the method faithfully reproduces the shape of the activity distribution, and for synthetic data the total activity is reproduced as well.

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Structural brain basis of latent factors of executive functions in childhood.

Dev Cogn Neurosci

December 2024

Division of Psychology and Language Sciences, UCL, London WC1H 0AP, UK. Electronic address:

Executive functions can be classified into processes of inhibition, working memory and shifting, which together support flexible and goal-directed behaviour and are crucial for both current and later-life outcomes. A large body of literature has identified distinct brain regions critical to performing each of these functions. These findings are however predicated on a piecemeal and single-task approach.

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Background: Manual extraction of real-world clinical data for research can be time-consuming and prone to error. We assessed the feasibility of using natural language processing (NLP), an AI technique, to automate data extraction for patients with advanced lung cancer (aLC). We assessed the external validity of our NLP-extracted data by comparing our findings to those reported in the literature.

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Fasting during Ramadan involves abstaining from food and drink from dawn to dusk for 29 to 30 days, annually. Dietitians, experts in food and nutrition, play a vital role in fostering the well-being of Canadians. Given that 1 in 20 Canadians are Muslim, access to culturally safe care is essential for their health.

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Background: Achievement of moisture balance can be a critical factor affecting time to closure of nonhealing wounds, and dry wounds can take much longer to heal than those with high exudate levels. Whether the goal of management is to donate moisture to the wound or control excessive fluid until the cause has been identified and addressed, choice of dressing and other wound management products can affect nursing resources, clinical outcomes, concordance, and quality of life for the patient.

Case Reports: The cases discussed illustrate differences in management approaches for dry and wet wounds and show how clinician support tools (eg, tissue type, infection/inflammation, moisture imbalance, epithelial edge advancement [TIME] clinical decision support tool) can facilitate treatment decisions.

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Objective: Subtypes of gestational diabetes mellitus (GDM) based on insulin sensitivity and secretion have been described. We addressed the hypothesis that GDM subtypes are differentially associated with newborn and child anthropometric and glycemic outcomes.

Research Design And Methods: Newborn and child (age 11-14 years) outcomes were examined in 7,970 and 4,160 mother-offspring dyads, respectively, who participated in the Hyperglycemia and Adverse Pregnancy Outcome Study (HAPO) and Follow-Up Study.

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Background: The acute effects of high-intensity interval training (HIIT) on blood pressure (BP) may depend on the exercise protocol performed. Purpose: To compare the acute effect of high and low-volume HIIT on post-exercise and ambulatory BP in untrained older females diagnosed with both type 2 diabetes (T2D) and hypertension (HTN). Methods: Fifteen females (69 [65 ─ 74] years) completed a crossover study with three experimental conditions: 1) REST (35 min in sitting position); 2) HIIT10 (10 × 1 min at 90% heart rate max [HRmax]), and 3) HIIT4 (4 × 4 min at 90% HRmax).

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Purpose: Recent advances in artificial intelligence provide opportunities to capture and represent complex features of human language in a more automated manner, offering potential means of improving the efficiency of language assessment. This review article presents computerized approaches for the analysis of narrative language and identification of language disorders in children.

Method: We first describe the current barriers to clinicians' use of language sample analysis, narrative language sampling approaches, and the data processing stages that precede analysis.

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