Publications by authors named "Norris G"

The Continuity of Midwife Care (CMC) model is an evidence-based care model that positively influences the health and well-being of women, their families, and midwives. Although effective communication strategies have not been determined, online resources are known to reach a wider audience and make CMC research more visible. The newsletter, distributed by the authors, is a strategy to communicate valuable and credible CMC content from knowledge producers to users.

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There is a need to develop therapies for neonatal encephalopathy (NE) in low- and middle-income countries (LMICs) where the burden of disease is greatest and therapeutic hypothermia (HT) is not effective. We aimed to assess the efficacy of melatonin following inflammation-amplified hypoxia-ischaemia (IA-HI) in the newborn piglet. The IA-HI model accounts for the contribution of infection/inflammation in this setting and HT is not cytoprotective.

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Background: The 10-item Birth Satisfaction Scale-Revised (BSS-R) is a quick and easy survey instrument recommended by the International Consortium for Health Outcome Measures as the tool of choice for measuring women's birth satisfaction.

Aim: To translate and validate a Vietnamese-language version of the BSS-R.

Method: A quantitative cross-sectional method was used to gather data post translation and back-translation of a Vietnamese version of the BSS-R (VN-BSS-R).

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Background: The Vietnam midwifery report acknowledges that while health services are available in Vietnam, there is growing need to increase levels of respectful maternal care provided to women in labour.

Objective: In conjunction with newborns Vietnam charity, our objective was to assess the perceived continuous professional development needs of midwives working in Vietnam to inform development of an intranatal respectful maternal care education resource.

Method: A qualitative exploratory descriptive method was used to conduct a training needs analysis, which identified perceived education requirements of midwives in Vietnam in relation to providing respectful maternal care.

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  • Organisms need to balance strong immune responses against infections with avoiding damage caused by an overactive immune system, especially in the central nervous system (CNS), which is sensitive to such issues.
  • The research highlights the importance of the protein IL-33 and its receptor ST2 for survival during neuroinvasive flavivirus infections, with oligodendrocytes producing IL-33 and microglia responding to it.
  • Without the effective IL-33/ST2 signaling, infections can lead to harmful recruitment of peripheral immune cells, increased stress on neurons, and ultimately, cell death, affecting overall survival.
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Realizing the full potential of quantum technologies requires precise real-time control on time scales much shorter than the coherence time. Model-free reinforcement learning promises to discover efficient feedback strategies from scratch without relying on a description of the quantum system. However, developing and training a reinforcement learning agent able to operate in real-time using feedback has been an open challenge.

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  • Researchers examined how gustatory terminal fields develop in the mouse brain and found that normal pruning of excess nerve endings depends on maternal sodium intake.
  • Mice whose mothers ate low sodium during early pregnancy showed defects in this pruning process despite having normal taste function.
  • The study revealed that activating myeloid cells after birth could restore pruning in these mice, suggesting that early maternal diet influences how the brain develops and organizes taste pathways.
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Glycocin F (GccF), a ribosomally synthesized, post-translationally modified peptide secreted by KW30, rapidly inhibits the growth of susceptible bacteria at nanomolar concentrations. Previous studies have highlighted structural features important for its activity and have shown the absolute requirement for the Ser18 -linked GlcNAc on the eight-residue loop linking the two short helices of the (C-X6-C) structure. Here, we show that an ostensibly very small chemical modification to Ser18, the substitution of the C proton with a methyl group, reduces the antimicrobial activity of GccF 1000-fold (IC 1.

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Neonatal seizures are commonly associated with acute perinatal brain injury, while understanding regarding the downstream molecular pathways related to seizures remains unclear. Furthermore, effective treatment and reliable biomarkers are still lacking. Post-translational modifications can contribute to changes in protein function, and post-translational citrullination, which is caused by modification of arginine to citrulline via the calcium-mediated activation of the peptidylarginine deiminase (PAD) enzyme family, is being increasingly linked to neurological injury.

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Background: Ependymoma (EPN) posterior fossa group A (PFA) has the highest rate of recurrence and the worst prognosis of all EPN molecular groups. At relapse, it is typically incurable even with re-resection and re-irradiation. The biology of recurrent PFA remains largely unknown; however, the increasing use of surgery at first recurrence has now provided access to clinical samples to facilitate a better understanding of this.

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  • Generalizable studies on population-level cancer treatment often overlook variations in individual tumors, making it challenging to predict how a patient will respond to neoadjuvant therapy (NAT) for breast cancer.
  • This research evaluates an existing biophysical simulation platform, TumorScope Predict (TS), using data from early-stage and locally advanced breast cancer patients to forecast their response to NAT.
  • Among the study cohort of 80 patients, the platform demonstrated a significant correlation between predicted tumor volumes and actual MRI-assessed volumes after treatment, highlighting its potential utility in clinical practice.
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Superposition, entanglement and non-locality constitute fundamental features of quantum physics. The fact that quantum physics does not follow the principle of local causality can be experimentally demonstrated in Bell tests performed on pairs of spatially separated, entangled quantum systems. Although Bell tests, which are widely regarded as a litmus test of quantum physics, have been explored using a broad range of quantum systems over the past 50 years, only relatively recently have experiments free of so-called loopholes succeeded.

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Article Synopsis
  • Organisms need to balance strong immune responses against pathogens while preventing damage from their own immune activity, which is especially crucial in the central nervous system (CNS).
  • The study highlights the role of the alarmin IL-33 and its receptor ST2 in protecting against neuroinvasive flavivirus infections, with oligodendrocytes producing IL-33 and microglia responding to it.
  • Without proper IL-33/ST2 signaling, the brain faced harmful immune responses leading to increased stress and death of neuronal cells, ultimately reducing survival chances during infection.
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Background: The purpose of our study is to assess the methodology of overlapping systematic reviews related to cemented vs uncemented hip hemiarthroplasties for the treatment of femoral neck fractures to find the study with the best evidence. Also, we assess the gaps in methodology and information to help with direction of future studies.

Methods: A systematic search was conducted in September 2022 using Pubmed, Embase, and Cochrane Library.

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O-Glycosylation of hydroxylysine (Hyl) in collagen occurs at an early stage of biosynthesis before the triple-helix has formed. This simple post-translational modification (PTM) of lysine by either a galactosyl or glucosylgalactosyl moiety is highly conserved in collagens and depends on the species, type of tissue and the collagen amino acid sequence. The structural/functional reason why only specific lysines are modified is poorly understood, and has led to increased efforts to map the sites of PTMs on collagen sequences from different species and to ascertain their potential role in vivo.

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Context: Amputations are routine in orthopedics, specifically during trauma and when patients have recurrent surgical site infections. When undergoing amputations, patients must combat the psychosocial factors associated with the loss of an extremity, including stigmatization.

Objectives: This study analyzes the presence of person-centered language (PCL) within amputation-related orthopedic publications in the top orthopedic journals.

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Aim: To explore factors that influence fathers' experiences of childbirth and implications for their subsequent postnatal mental health.

Background: Fathers who attend the birth of their baby often have very rewarding experiences. However, those who witness a difficult birth may progress to develop subsequent mental health problems, e.

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Background: The diverse cellular constituents of childhood brain tumor ependymoma, recently revealed by single cell RNA-sequencing, may underly therapeutic resistance. Here we use spatial transcriptomics to further advance our understanding of the tumor microenvironment, mapping cellular subpopulations to the tumor architecture of ependymoma posterior fossa subgroup A (PFA), the commonest and most deadly childhood ependymoma variant.

Methods: Spatial transcriptomics data from intact PFA sections was deconvoluted to resolve the histological arrangement of neoplastic and non-neoplastic cell types.

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Background: Maternity policy and guidelines increasingly recommend or stipulate the increased provision of midwifery continuity of carer as a priority model of care. The scale up and sustainability of this model will require that student midwives are competent to provide continuity of carer at the point of qualification. Guidance relating to how to optimally prepare student midwives to work within continuity models is lacking.

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Quantum computing crucially relies on the ability to efficiently characterize the quantum states output by quantum hardware. Conventional methods which probe these states through direct measurements and classically computed correlations become computationally expensive when increasing the system size. Quantum neural networks tailored to recognize specific features of quantum states by combining unitary operations, measurements and feedforward promise to require fewer measurements and to tolerate errors.

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Purpose: Pineal region tumors (PRT) represent less than 1% of brain neoplasms. The rare and heterogeneous nature of these tumors is reflected in the variety of treatment modalities employed.

Methods: A single-center retrospective review of all pediatric patients with pineal region tumors between November 1996 and June 2021 was performed.

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Systematic reviews, of level-I primary literature, are the gold standard for the formation of Clinical Practice Guidelines in Orthopaedic Surgery. When systematic reviews have multiple groups of data, meta-analyses can be conducted to analyse the direct comparison of the data points (pairwise meta-analysis). Over recent years, statisticians have created a new statistical model called network meta-analyses that can be applied to systematic reviews.

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Quantum computers hold the promise of solving computational problems that are intractable using conventional methods. For fault-tolerant operation, quantum computers must correct errors occurring owing to unavoidable decoherence and limited control accuracy. Here we demonstrate quantum error correction using the surface code, which is known for its exceptionally high tolerance to errors.

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