13,632 results match your criteria: "University Drive.[Affiliation]"

Cutting-edge advances in strain and process engineering for boosting cellulase production in Trichoderma reesei.

Bioresour Technol

December 2024

Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250353, People's Republic of China; Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, Canada. Electronic address:

Low-cost production of cellulases is a key factor in advancing the commercialization of lignocellulosic biorefinery. Thus far, Trichoderma reesei is the leading cellulase producer for biorefinery applications. Over 70 years of research, considerable advancements have been made in comprehending the mechanisms underlying cellulases biosynthesis and secretion in T.

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The aim of this work was to evaluate results of a remote electronic portal imaging based dosimetric auditing method using Task-Group 218 clinical gamma evaluation criteria (3%,2 mm, 10% dose threshold). For intensity modulated radiation therapy the results were (mean ± 1 SD) 97.9 ± 4.

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Association of Hepatic Gene Expression with Chemical Concentrations in Wild-Collected Double-Crested Cormorant Embryos using an EcoToxChip Gene Array.

Environ Sci Technol

December 2024

Environment and Climate Change Canada, Ecotoxicology and Wildlife Health Division, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada.

Contaminant monitoring programs use wild bird eggs, but determining whether measured concentrations elicit adverse effects relies on extrapolation from toxicity studies with avian model species. Here, we directly evaluated the relationships between whole embryo contaminant concentrations and mRNA expression in liver tissue of the double-crested cormorant (). Eggs collected from three North American sites (one from Lake Erie and two from the Salish Sea) were artificially incubated until pipping.

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Altered levels of intracellular protein glycosylation with O-linked β-N-acetylglucosamine (O-GlcNAc) have emerged as being involved in various cancers and neurodegenerative diseases. OGA inhibitors have proven critically useful as tools to help understand the roles of O-GlcNAc, yet accessing large quantities of inhibitors necessary for many animal studies remains a challenge. Herein is described a scalable method to produce Thiamet-G, a potent, selective, and widely used brain-permeable OGA inhibitor.

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Implementation of risk mitigation prescribing during dual public health emergencies: A qualitative study among Indigenous people who use drugs and health planners in Northern British Columbia, Canada.

Int J Drug Policy

December 2024

First Nations Health Authority, 100 Park Royal S, Coast Salish Territory, BC V7T 1A2, Canada; Faculty of Health Sciences, Simon Fraser University, Blusson Hall, 8888 University Drive, Burnaby BC V5A 1S6, Canada.

Background: In response to the dual public health emergencies of COVID-19 and the overdose crisis, the Government of British Columbia (BC) introduced risk mitigation prescribing, or prescribed safer supply. In the context of colonialism and racism, Indigenous people are disproportionately impacted by substance use harms and experience significant barriers to receiving care, particularly those living in rural and remote communities. As part of a larger provincial evaluation, we sought to assess the implementation of risk mitigation prescribing as experienced by Indigenous people who use drugs (IPWUD) in Northern BC.

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Article Synopsis
  • The study evaluates outcomes for patients with advanced lung cancer receiving palliative radiotherapy at the Fast Track Lung Clinic, focusing on treatment responses and survival factors.
  • Among 558 patients, a significant 70% showed treatment response, with higher rates linked to better performance status and specific genetic mutations, while those treated for neurological symptoms had lower responses.
  • Key factors affecting overall survival included age, performance status, smoking habits, and the presence of metastases, highlighting the complexity of managing advanced lung cancer.
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Background: Two facets of positive body image, body appreciation and functionality appreciation, are positively associated with an adaptive eating style known as intuitive eating. Little is known about the mechanisms underlying the association between positive body image and intuitive eating, although it is well established that weight bias internalization is associated with unfavorable views of the self and body and interferes with health behavior engagement.

Objective: The present cross-sectional study examined weight bias internalization as a statistical mediator of the association between positive body image (i.

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A review: Breeding behavior and management strategies for improving reproductive efficiency in bulls.

Anim Reprod Sci

December 2024

University of Calgary Faculty of Veterinary Medicine,  2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada. Electronic address:

This review focuses on bull breeding behaviors and management strategies to improve reproductive efficiency. Breeding soundness evaluations are utilized to classify a bull's physical ability and sperm quality, yet roughly 20 % of bulls fail to meet the minimum criteria. Furthermore, despite achieving the minimum criteria, few bulls in multi-sire breeding groups sire the majority of calves, indicating a need for better understanding of bull behavior that impact siring capacity, and thus, a bull's reproductive efficiency.

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Norm reinforcement, not conformity or environmental factors, is predicted to sustain cultural variation.

Evol Hum Sci

December 2024

School of Human Evolution and Social Change, Arizona State University, 900 S. Cady Mall, Tempe, AZ 85287, USA.

The maintenance of cross-cultural variation and arbitrary traditions in human populations is a key question in cultural evolution. Conformist transmission, the tendency to follow the majority, was previously considered central to this phenomenon. However, recent theory indicates that cognitive biases can greatly reduce its ability to maintain traditions.

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Metallic 1T Phase MoS Nanosheets Covalently Functionalized with BBD Molecules for Enhanced Supercapacitor Performances.

ACS Appl Mater Interfaces

January 2025

Department of Materials Science and Engineering, and State Key Laboratory of Marine Pollution, and Center of Super-Diamond and Advanced Films, City University of Hong Kong, Hong Kong S.A.R. 999077, China.

Metallic 1T phase molybdenum disulfide (MoS) is among the most promising electrode materials for supercapacitors, but its capacitance and cyclability remain to be improved to meet the constantly increasing energy storage needs in portable electronics. In this study, we present a strategy, covalent functionalization, which achieves the improvement of capacitance of metallic 1T phase MoS. Covalently functionalized by the modifier 4-bromobenzenediazonium tetrafluoroborate, the metallic MoS membrane exhibits increased interlayer spacing, slightly curled layered architecture, enhanced charge transfer, and improved adsorption capabilities toward electrolyte molecules and ions.

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Type I and Type II photosensitization of DNA etheno adducts.

Photochem Photobiol Sci

December 2024

Instituto Universitario Mixto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València, Consejo Superior de Investigaciones Científicas, Avda de los Naranjos s/n, 46022, Valencia, Spain.

Photophysical and photochemical studies were carried out to examine the photoreactivity of etheno adducts, 1,N-ethenoadenine (εdA) and 1,N-ethenoguanine (εdG), in the presence of two well-known photosensitizers acting by Type I and/or Type II mechanisms such as 4-carboxybenzophenone (CBP) and rose Bengal (RB), respectively. Steady-state photolysis experiments combined with HPLC and mass spectroscopy measurements lead to photoproducts that correspond to the repaired nucleosides. To determine the mechanism of this photooxidation processes, phosphorescence spectroscopy, direct detection of singlet oxygen luminescence and laser flash photolysis were carried out.

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In this study, we examined Pacific salmon decline and ecosystem function through Western science and Indigenous, Teslin Tlingit knowledge. We tested relationships of riparian tree growth and nitrogen composition at the limit of Pacific salmon distribution on the Teslin Tlingit Council (TTC) Traditional Territory in Southern Yukon, studied ecosystem roles of salmon and population declines in the area, and the interactions of these processes. Within sites, tree growth was positively related to salmon escapement at all salmon-bearing sites and not at the negative (salmon-free) control site.

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Background: During the COVID-19 pandemic, virtual care was used to deliver primary care services. Nurses contributed to primary care teams' capacity to deliver care virtually. This study explored nurses' roles in virtual care delivery in primary care and the barriers and facilitators that influenced their contributions.

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Aims: Biosurfactants are valuable eco-friendly compounds with broad industrial applications, particularly when produced sustainably using yeast and renewable carbon sources. Despite the potential of yeast in biosurfactant synthesis, little is known about the specific gene expression changes underlying this process. This study investigates the genetic response of Wickerhamomyces anomalus CCMA 0358 to biosurfactant production using waste cooking oil (WCO) as a low-cost carbon source.

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Pregnancy Eating Attitudes-Questionnaire (PEA-Q): Exploratory factor analysis and psychometric performance in a pregnant community sample with body mass index ≥ 25.

Appetite

December 2024

University of Pittsburgh, Department of Psychiatry, 3811 O'Hara Street, Pittsburgh, PA, 15213, USA; University of Pittsburgh, Department of Psychology, 210 South Bouquet Street, Pittsburgh, PA, 15260, USA.

Pregnancy is characterized by biopsychosocial changes that impact appetite, eating and weight. Understanding pregnant individuals' attitudes toward eating and weight can provide insight into prenatal health behavior. Accordingly, we developed and performed initial psychometric testing of a self-report measure, the Pregnancy Eating Attitudes-Questionnaire (PEA-Q), among individuals with pre-pregnancy BMI≥25.

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First preclinical SPECT/CT imaging and biodistribution of [Er]ErCl and [Er]Er-PSMA-617.

EJNMMI Radiopharm Chem

December 2024

Life Sciences Division, TRIUMF, 4004 Wesbrook Mall, Vancouver, BC, V6T 2A3, Canada.

Background: Er (t = 10.4 h, E = 47.1 keV (59.

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Local government policies and practices shape the context of the places that can alter a population's life chances through socioeconomic factors, built environments, and healthcare access. County governments, one of the most ubiquitous U.S.

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BSDR: A Data-Efficient Deep Learning-Based Hyperspectral Band Selection Algorithm Using Discrete Relaxation.

Sensors (Basel)

December 2024

Wimmera Catchment Management Authority, 24 Darlot St, Horsham, VIC 3400, Australia.

Hyperspectral band selection algorithms are crucial for processing high-dimensional data, which enables dimensionality reduction, improves data analysis, and enhances computational efficiency. Among these, attention-based algorithms have gained prominence by ranking bands based on their discriminative capability. However, they require a large number of model parameters, which increases the need for extensive training data.

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This study explores the liquid crystalline properties of novel amphiphilic β-cyclodextrin derivatives functionalized with seven oligoethylene glycol chains at the primary face, terminated with either an O-methyl or an O-cyanoethyl group, and fourteen hydrophobic aliphatic chains (elaidic or oleic acids) at the secondary face. These derivatives were designed to study the impact of chain conformation and terminal group polarity on their mesomorphic behavior. Thermal, microscopic, and X-ray diffraction studies revealed that the elaidic derivatives form columnar hexagonal mesophases, with the O-cyanoethyl derivative undergoing a slow, temperature-dependent transition to a bicontinuous cubic phase.

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Evolution of Bionanocomposites: Innovations and Applications in Food Packaging.

Foods

November 2024

Office of the President, University of Lethbridge, 4401 University Drive West, Lethbridge, AB T1K 3M4, Canada.

Bionanocomposites are emerging as a pivotal innovation in sustainable food packaging, leveraging the strengths of biopolymers enhanced with nanoparticles for improved functionality. The increasing demand for sustainable packaging solutions, coupled with advancements in nanotechnology, has driven research in this field over the past decade. This review covers the full spectrum of developments in the field, from the classification and synthesis of bionanocomposites to their applications in food packaging and current research trends.

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The disruption of the intestinal epithelial barrier leads to increased intestinal permeability (IP), allowing endotoxins and pathogens to enter the bloodstream contributing to chronic inflammation. Western diets are associated with increased IP, while diets rich in polyphenols, fiber, and omega-3 fats are linked to decreased IP. The relationship between diet, disease activity, and IP in ulcerative colitis (UC) is poorly understood.

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Our recent studies have identified a link between sphingolipid metabolites and the induction of a specialized form of regulated cell death termed immunogenic cell death (ICD). We have recently demonstrated that the synthetic cannabinoid (±) 5-epi CP 55,940 (5-epi) stimulates the accumulation of ceramide (Cer), and that inhibition of sphingosine kinase 1 (SphK1) enhances Cer accumulation and ICD-induction in human colorectal cancer (CRC) cell lines. We employed flow-cytometric, western blot analyses, pharmacological inhibitors of the sphingolipid metabolic pathway and small molecule agonists and antagonists of the CB receptors to further analyze the mechanism by which 5-epi induces Cer accumulation.

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Animal flesh is a major food source with economic and industrial value for consumer demand. These meats produced biowaste during and after preparation and use. Chicken intestines make up most of the waste thrown away after processing or frying.

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The Triassic Montney Formation hosts major oil and gas resources in Western Canada. Despite significant historical development of these resources, the origin of its hydrocarbons remains unclear, partly due to limited evidence of primary organic matter within the formation. Most of the hydrocarbons in the Triassic Montney Formation are trapped in low-permeability siltstone facies.

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Aim: Investigate the experience of hospital-based educators becoming person-centred facilitators of learning.

Background: Hospital-based educators working with staff are not well-prepared for their role. No person-centred pedagogical approaches exist specifically for use in hospital settings.

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