Publications by authors named "Walker S"

The 2022 mpox outbreak predominantly impacted gay, bisexual, and other men who have sex with men (gbMSM). Two models were developed to support situational awareness and management decisions in Canada. A compartmental model characterized epidemic drivers at national/provincial levels, while an agent-based model (ABM) assessed municipal-level impacts of vaccination.

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Molecular motifs can explain information processing within single cells, while how assemblies of cells collectively achieve this remains less well understood. Plant fitness and survival depend upon robust and accurate decision-making in their decentralised multicellular organ systems. Mobile agents, including hormones, metabolites, and RNAs, have a central role in coordinating multicellular collective decision-making, yet mechanisms describing how cell-cell communication scales to organ-level transitions is poorly understood.

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Purpose: Reduced spinal excitability during the transcranial magnetic stimulation (TMS) silent period (SP) has recently been shown to last longer than previously thought in the upper limbs, as assessed via spinal electrical stimulation. Further, there is reason to expect that contraction intensity affects the duration of the reduced spinal excitability.

Methods: This study investigated spinal excitability at different time delays within the TMS-evoked SP in m.

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Introduction: Aging involves many physiological processes that lead to decreases in muscle mass and increases in fat mass. While regular exercise can counteract such negative body composition outcomes, masters athletes maintain high levels of exercise throughout their lives. This provides a unique model to assess the impact of inherent aging.

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A recent report described a nonsense variant simultaneously creating a donor splice site, resulting in a truncated but functional protein. To explore the generalizability of this unique mechanism, we annotated >115,000 nonsense variants using SpliceAI. Between 0.

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Background: Bone metastases are the most common site of metastatic disease in breast cancer and can result in significant pain and an increased risk of skeletal-related events (SREs). Uncontrolled pain can further lead to negative outcomes.

Objectives: The aim is to provide oncology nurses with the latest evidence on the management of bone metastases in metastatic breast cancer (MBC) with a focus on pain and SREs.

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Extracellular vesicles (EVs) are cell-released vesicles that mediate intercellular communication by transferring bioactive cargo. Protein and RNA sorting into EVs has been extensively assessed, while selective enrichment of glycans in EVs remains less explored. In this study, a mass spectrometry-based approach, glycan node analysis (GNA), was applied to broadly assess the sorting of glycan features into EVs.

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Article Synopsis
  • Cloning in the animal kingdom involves creating genetically identical individuals and is gaining attention for its potential in conserving endangered or extinct species.
  • Various reproductive techniques, including somatic cell nuclear transfer and induced pluripotent stem cells, expand our understanding of cloning's role in conservation beyond traditional methods.
  • Ethical considerations and practical implications must be evaluated alongside biological advancements to assess the viability of cloning in protecting endangered species.
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  • STAT5B mutations were found in a small percentage (<0.5%) of various myeloid neoplasms, with a notably higher frequency in chronic eosinophilic leukemia (CEL-NOS, 15%).
  • Most mutations occurred in the SH2 domain, particularly at the N642H hotspot (78%), and these mutations were often subclonal in many neoplasms but dominant in CEL-NOS (83%).
  • The presence of STAT5B mutations was linked to higher rates of eosinophilia and basophilia, suggesting that they could be important driver mutations in certain chronic myeloid neoplasms, especially when detected during the initial diagnosis.
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This article explores "how do victims-survivors of gender-based violence (GBV) experience and perceive justice?" based on interviews with 251 victims-survivors with experience of different types of GBV and criminal, civil, and family justice systems. Victims-survivors were found to have multiple perceptions of justice, related to different points in their journey following abuse and regarding individual, community, and societal responses. Perceptions relate to accountability; fairness in outcome and process; protection from future harm; recognition; agency; empowerment; affective justice; reparation; and social transformation.

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Objectives: We highlight the importance of undertaking value assessments for health system inputs if allocative efficiency is to be achieve with health sector resources, with a focus on low- and middle-income countries. However, methodological challenges complicated the application of current economic evaluation techniques to health system input investments.

Methods: We undertake a review of the literature to examine how assessments of investments in health system inputs have been considered to date, highlighting several studies that have suggested ways to address the methodological issues.

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Importance: Anxiety disorders are associated with poor maternal and neonatal outcomes. Women in low- and middle-income countries (LMICs) are thought to be disproportionally burdened by these disorders, yet their prevalence is unclear.

Objective: To conduct a systematic review and meta-analysis to determine the prevalence of 6 anxiety and related disorders among perinatal women in LMICs.

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Importance: Birth at 39 weeks' gestation is common and thought to be safe for mother and neonate. However, findings of long-term outcomes for children born at this gestational age have been conflicting.

Objective: To evaluate the association of birth at 39 weeks' gestation with childhood numeracy and literacy scores at ages 7 to 9 years compared with birth at 40 to 42 weeks' gestation.

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Article Synopsis
  • OptiBreech is a new care pathway designed for women with a breech-presenting fetus, offering continuity from a specialist midwife and the option for vaginal breech birth (VBB).
  • A pilot trial was conducted from January to June 2022 with 68 women, but the randomisation process faced challenges, as many participants preferred OptiBreech care over standard options.
  • Results showed that women in the OptiBreech group had higher rates of vaginal births and lower rates of complications compared to those receiving standard care, leading to a recommendation for a different study design for future evaluations.
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Objective: Building health services and workforce that are both well supported and fit for purpose is a key consideration for improving health outcomes in rural populations. Achieving this requires an understanding of the roles and practice characteristic of each professional group, including allied health professionals. This study explores what it means to be an allied health professional practicing in rural Aotearoa New Zealand.

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The origin of life and the detection of alien life have historically been treated as separate scientific research problems. However, they are not strictly independent. Here, we discuss the need for a better integration of the sciences of life detection and origins of life.

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Objectives: Provide insights into the experiences and perspectives of healthcare staff who treated scabies or managed outbreaks in formal and informal refugee/migrant camps in Europe 2014-2017.

Design: Retrospective qualitative study using semistructured telephone interviews and framework analysis. Recruitment was done primarily through online networks of healthcare staff involved in medical care in refugee/migrant settings.

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Introduction: The World Health Organization (WHO) advocates the use of reliance practices to enable national regulatory authorities (NRAs) to improve patients' access to medicines. This study considered whether reliance review translates into swifter medicine authorization.

Methods: Abridged review outcomes were examined for New Chemical Entity (NCE) and generic applications to the South African Health Products Regulatory Authority (SAHPRA) in Chemistry, Manufacturing and Controls (CMC) and clinical/bioequivalence (BE), as well as overall NCE authorization times.

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IA is a 68 amino acid natural peptide/protein inhibitor of yeast aspartic proteinase A (YPRA) that is intrinsically disordered in solution with induced N-terminal helicity when in the protein complex with YPRA. Based on the intrinsically disordered protein (IDP) parameters of fractional net charge (), net charge density per residue (), and charge patterning (κ), the two domains of IA are defined to occupy different domains within conformationally based subclasses of IDPs, thus making IA a bimodal domain IDP. Site-directed spin labeling (SDSL) electron paramagnetic resonance (EPR) spectroscopy and low-field Overhauser dynamic nuclear polarization (ODNP) spectroscopy results show that these two domains possess different degrees of compaction and hydration diffusivity behavior.

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Objective: The authors sought to characterize perceptions of the impacts, attributes, and support for taxes earmarked for behavioral health services and to compare perceptions of the taxes among professionals in California and Washington, two states differing in earmarked tax designs.

Methods: Surveys were completed by 155 public agency and community organization professionals involved in tax implementation in California (N=87) and Washington State (N=68) during 2022-2023 (29% response rate). Respondents indicated their perceptions of the taxes' impacts, attributes, and support.

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Background: Cutaneous leishmaniasis (CL) is a growing public health threat in Ethiopia. Leishmania aethiopica is the predominant causative organism. Affected individuals develop chronic skin lesions on exposed parts of the body, mostly on the face, which are disfiguring and cause scarring.

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