1,926 results match your criteria: "Royal Holloway - University of London[Affiliation]"

Assisted migration is a tree-planting method where tree species or populations are translocated with the aim of establishing more climate-resilient forests. However, this might potentially increase the susceptibility of translocated trees to herbivory. Stand diversification through planting trees in species or genotypic mixtures may reduce the amount of damage by insect pests, but its effectiveness in mitigation of excess herbivory on climate-matched trees has seldom been explored.

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Background: Atherosclerosis is a systemic vascular disease commonly affecting coronary and carotid arteries, particularly in diabetes mellitus (DM). This study assessed the association of DM with significant carotid artery stenosis (CAS) among the coronary artery disease (CAD) population undergoing isolated elective coronary artery bypass graft (CABG) surgery.

Methods: A prospective cross-sectional study evaluated 100 Bangladeshi CAD patients who underwent isolated elective CABG from January 2017 to September 2019.

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The tongue facilitates vital activities such as swallowing. Swallowing difficulties (dysphagia) are common in the elderly and in many adult-onset neuromuscular diseases. In oculopharyngeal muscular dystrophy (OPMD), dysphagia is often the first symptom.

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High-energy nuclear collisions create a quark-gluon plasma, whose initial condition and subsequent expansion vary from event to event, impacting the distribution of the eventwise average transverse momentum [P([p_{T}])]. Disentangling the contributions from fluctuations in the nuclear overlap size (geometrical component) and other sources at a fixed size (intrinsic component) remains a challenge. This problem is addressed by measuring the mean, variance, and skewness of P([p_{T}]) in ^{208}Pb+^{208}Pb and ^{129}Xe+^{129}Xe collisions at sqrt[s_{NN}]=5.

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Developmental coordination disorder (DCD/Dyspraxia) is a commonly misunderstood and under-recognized specific learning difficulty (SpLD) in educational settings. This lifelong condition affects fine and gross motor coordination and significantly interferes with many activities of daily living, academic achievement, and employment opportunities. However, most Higher Education Institutions (HEIs) are unaware of its prevalence within their context, even though 5% of the general population have DCD and the enrolment of students in UK Higher Education with a known disability has increased by 42.

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The genome of the solitary bee Tetrapedia diversipes (Hymenoptera, Apidae).

G3 (Bethesda)

December 2024

Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, Rua do Matão, 277, CEP 05508-090, São Paulo, SP, Brazil.

Tetrapedia diversipes is a Neotropical solitary bee commonly found in trap-nests, known for its morphological adaptations for floral oil collection and prepupal diapause during the cold and dry season. Here, we present the genome assembly of T. diversipes (332 Mbp), comprising 2,575 scaffolds, with 15,028 predicted protein-coding genes.

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Background: Anthropometric measurements used to predict cardiovascular disease vary worldwide but are mostly derived from those of Caucasian ancestry. We sought to undertake such measurements in the little studied Bangladeshi population.

Methods: The MAGPIE (Multidimensional Approach of Genotype and Phenotype in Stroke Etiology) study is a Bangladeshi stroke case-control study that recruited nationwide between January 2022 and June 2024.

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Mendelian randomization assessing causal relationship between fibrinogen levels and ischemic stroke.

J Stroke Cerebrovasc Dis

December 2024

Institute of Cardiovascular Research, Royal Holloway University of London (ICR2UL), London TW20 0EX, UK; Department of Neurology, Imperial College Healthcare NHS Trust, UK. Electronic address:

Article Synopsis
  • High fibrinogen levels are linked to a higher risk of ischaemic stroke (IS), suggesting a potential causal relationship explored using Mendelian randomization (MR).
  • A meta-analysis involving 24 studies and over 20,000 IS cases revealed that certain gene variants (like FGB rs1800790) are associated with increased fibrinogen levels, which in turn raise IS risk.
  • The analysis showed that each 1g/L increase in fibrinogen correlates with more than double the risk of experiencing an ischaemic stroke.
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Collective action can be a crucial tool for enabling individuals to combat crime in their communities. In this research, we investigated individuals' intentions to mobilize against organized crime, a particularly impactful form of crime characterized by its exercises of power over territories and communities. We focused on individuals' views and perceptions of state authorities, examining how these views may be linked to intentions for collective mobilization.

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Avenues towards reconciling wild and managed bee proponents.

Trends Ecol Evol

January 2025

Swiss Bee Research Centre, Agroscope, Berne 3003, Switzerland; Department Ecology and Evolution, University of Lausanne, Lausanne, 1015, Switzerland.

Bees are crucial for food security and biodiversity. However, managed bees are increasingly considered drivers of wild bee declines, leading to stakeholder conflicts and restrictive policies. We propose avenues to reconcile wild and managed bee proponents and point out knowledge gaps that hinder the development of evidence-based policies.

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The physics of spin-orbit entangled magnetic moments of 4d and 5d transition metal ions on a honeycomb lattice has been much explored in the search for unconventional magnetic orders or quantum spin liquids expected for compass spin models, where different bonds in the lattice favour different orientations for the magnetic moments. Realising such physics with rare-earth ions is a promising route to achieve exotic ground states in the extreme spin-orbit limit; however, this regime has remained experimentally largely unexplored due to major challenges in materials synthesis. Here we report the successful synthesis of powders and single crystals of β-NaPrO, with 4f Pr j = 1/2 magnetic moments arranged on a hyperhoneycomb lattice with the same threefold coordination as the planar honeycomb.

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Background And Aims: Stroke is a leading cause of mortality and morbidity in Bangladesh. It is estimated that genetic determinants account for around 40%-60% of its etiology, similar to environmental factors. This study aimed to provide a better understanding of the genetic, environmental, and clinical risk factors in stroke patients from Bangladesh.

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Oceanic gateways play a crucial role in controlling global ocean circulation. However, gateway effects on low-latitude deep-water circulation are poorly understood. The South China Sea, located in the western Pacific, was influenced by changes in the equatorial and low-latitude gateways, which recorded significant oceanographic variations since the Oligocene.

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Over the last 30 years, high-resolution site documentation has rapidly developed, with analogue drawings and film photography being replaced with high-precision digital recordings. Today, most archaeological field data sets are produced using digital tools that store spatial and visual information in various digital formats directly, i.e.

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Life stage dependent effects of neonicotinoid exposure on honey bee hypopharyngeal gland development.

Ecotoxicol Environ Saf

December 2024

Institute of Bee Health, Vetsuisse Faculty, University of Bern, Bern, Switzerland; Department of Entomology & Plant Pathology, Auburn University, Auburn, AL,  USA; Swiss Bee Research Center, Agroscope, Bern, Switzerland. Electronic address:

Article Synopsis
  • * Researchers conducted an experiment to see if the timing of exposure (during the brood or adult stage) to neonicotinoids influenced HPG development.
  • * Results showed that exposure during the brood stage significantly impaired HPG development, leading to smaller glands that could reduce the efficiency of nurse bees in caring for the colony.
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Background: The psychological wellbeing of staff who provide support to people with intellectual and developmental disabilities is one of the crucial factors in determining the quality of provision offered. An understanding of the current status and influencing variables of staff psychological wellbeing is considered to be vital in this respect.

Method: A systematic review of all studies involving staff working with people with intellectual disabilities using the Maslach Burnout Inventory Human Services Version (MBI-HS) published from May 2004 up to and including April 2024 was conducted.

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Cassava (Manihot esculentum Crantz) is a staple food source for many developing countries. Its edible roots are high in starch but lack micronutrients such as β-carotene. In the present study, analysis of pedigree breeding populations has led to the identification of cassava accessions with enhanced β-carotene contents up to 40 μg/g DW.

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Simultaneous pancreas and kidney transplantation: A qualitative study of partners' experiences.

PLoS One

November 2024

Health Psychology Research Unit (HPRU), Health Psychology Research Ltd, Egham, United Kingdom.

Chronic health conditions often affect the lives of family members as well as the patient themselves. The current study aimed to explore the experiences of partners of individuals with diabetes and chronic kidney disease (CKD) who received a simultaneous pancreas and kidney transplant (SPKT) to understand the wider impact of SPKTs. Eight partners of recipients of SPKT were interviewed about their experiences before and after the transplant.

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Objectives: Breast cancer (BC) stands as the second-leading cause of female-specific cancer-related fatalities globally, necessitating comprehensive research to address its critical aspects. This study aimed to explore the time intervals between surgery and disease recurrence in BC patients and their survival utilizing various parametric and semi-parametric models.

Methods: After the examination of data collected from 2010 to 2021 at a BC Center in Tehran, Iran, 171 cases met the criteria for analysis out of 2246 datasets.

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Purpose Of Review: This article critically reviews the impact of Social and Emotional Learning (SEL) on traumatized children's academic and social outcomes, focusing on studies from the past three years across diverse contexts. It emphasizes the need for culturally sensitive, trauma-informed programs that cater to various settings, while also exploring the critical roles of parents and educators in SEL implementation. Additionally, the paper highlights challenges in deploying SEL in crisis-affected regions and offers strategies to address systemic barriers.

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Ion-conducting polymer membranes are essential in many separation processes and electrochemical devices, including electrodialysis, redox flow batteries, fuel cells and electrolysers. Controlling ion transport and selectivity in these membranes largely hinges on the manipulation of pore size. Although membrane pore structures can be designed in the dry state, they are redefined upon hydration owing to swelling in electrolyte solutions.

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Exploring the limits of hierarchical world models in reinforcement learning.

Sci Rep

November 2024

Department of Computer Science, Institute for Neural Computation, Ruhr-University Bochum, Bochum, 44787, Germany.

Hierarchical model-based reinforcement learning (HMBRL) aims to combine the sample efficiency of model-based reinforcement learning with the abstraction capability of hierarchical reinforcement learning. While HMBRL has great potential, the structural and conceptual complexities of current approaches make it challenging to extract general principles, hindering understanding and adaptation to new use cases, and thereby impeding the overall progress of the field. In this work we describe a novel HMBRL framework and evaluate it thoroughly.

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A search for the exclusive hadronic decays W^{±}→π^{±}γ, W^{±}→K^{±}γ, and W^{±}→ρ^{±}γ is performed using up to 140  fb^{-1} of proton-proton collisions recorded with the ATLAS detector at a center-of-mass energy of sqrt[s]=13  TeV. If observed, these rare processes would provide a unique test bench for the quantum chromodynamics factorization formalism used to calculate cross sections at colliders. Additionally, at future colliders, these decays could offer a new way to measure the W boson mass through fully reconstructed decay products.

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Article Synopsis
  • - The ATLAS experiment at the LHC conducted a search for long-lived particles (LLPs) using a large dataset (140 fb^{-1}) from proton-proton collisions at 13 TeV, focusing on LLPs with masses from 5 to 55 GeV that decay within the inner detector.
  • - The study considered scenarios where LLPs are produced from exotic Higgs boson decays and models involving axionlike particles (ALPs).
  • - No significant findings above expected background levels were detected, leading to the establishment of upper limits on various production rates involving the Higgs boson and the top quark related to LLPs and ALPs.
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There is growing concern about the impact of declining political trust on democracies. Psychological research has introduced the concept of epistemic (mis)trust as a stable disposition acquired through development, which may influence our sociopolitical engagement. Given trust's prominence in current politics, we examined the relationship between epistemic trust and people's choices of (un)trustworthy political leaders.

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