4,629 results match your criteria: "University of portsmouth.[Affiliation]"

Chemosensory Cues Modulate Women's Jealousy Responses to Vocal Femininity.

Arch Sex Behav

January 2025

Department of Applied Social Sciences, Hong Kong Polytechnic University, Hung Hom, Hong Kong, China.

Jealousy responses to potential mating rivals are stronger when those rivals display cues indicating higher mate quality. One such cue is vocal femininity in women's voices, with higher-pitched voices eliciting greater jealousy responses. However, cues to mate quality are not evaluated in isolation.

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Digest: Evolution of dragline silk in araneids show super tensile performance in web-building and non-web-building spiders.

Evolution

January 2025

School of Environmental and Life Sciences (SELS), Faculty of Science and Health, University of Portsmouth, United Kingdom.

Wolff (2024) takes a comparative phylogenetic approach to study the evolution of dragline silk in 164 species of spiders, including both araneid and non-araneid species. Many structural and mechanical properties of dragline silk showed no correlations; however, both tensile strength and toughness correlated with birefringence-an indicator for the directional ordering of protein materials in the silk fibre. These properties do not seem to differ between web-building and non-web-building spiders; many spider families were found to include species that produce super-performing silk as well as species that produce weak-performing silk.

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Heat extremes become increasingly frequent and severe, posing adverse risks to public health and environment. Previous research on extreme heat mostly used meteorological observations or reanalysis data, which cannot well capture detailed spatial patterns. This study developed a seamless air temperature (T) dataset from remote sensing data to characterize the spatio-temporal variations of heat extremes in the Yangtze River Delta (YRD) from 2001 to 2023.

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A Jump Into Cold Water or a Leap of Faith?

J Neuropsychiatry Clin Neurosci

January 2025

Extreme Environments Laboratory, University of Portsmouth, Portsmouth, United Kingdom.

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Many witnesses are intoxicated at crime scenes, yet little is known of their ability to accurately describe perpetrators to police. We therefore explored the impact of alcohol on delayed verbal face recall across two experiments. Participants were administered an alcoholic or non-alcoholic beverage prior to viewing either one or two unfamiliar female faces, which they described from memory the following day while in a sober state.

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Optimism for a global plastics treaty.

Science

January 2025

Tegan Evans is at the Global Plastics Policy Centre, University of Portsmouth, Portsmouth, UK.

The lack of consensus at the United Nations (UN) global plastics treaty negotiations in December may seem like a setback, but declaring the talks a failure is premature. The process has not collapsed but has been extended, with further negotiations anticipated in 2025. This offers a crucial opportunity for the scientific community to assert its role in shaping a robust, evidence-based agreement to address the global plastic pollution crisis.

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The most frequent type of leukemia in Africa is chronic myeloid leukemia (CML). The genetic background of the rarer Philadelphia chromosome (Ph) Ph-ve (BCR-ABL-ve) subform of CML is largely unknown in African patients. Therefore, in this study, we aimed to investigate the role of CYP1A1 and 2D6 SNPs in the pathogenesis of Ph-ve CML in the Sudanese population.

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Introduction: Proper bladder drainage is crucial. Children with bladder dysfunction may require alternative methods like clean intermittent catheterisation (CIC). However, CIC can be challenging for individuals with impairments.

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A trait labelled as "morality" has been argued to be perceived and prioritised during first impressions of faces; however, immorality is not a homogenous concept. Violations of purity are frequently distinguished from other violations via distinct behavioural and emotional patterns, arguably stemming from physical disgust, sexual content, or "weirdness" impure scenarios. In the current research, participants were asked to rate unfamiliar faces based on social traits and their likelihood of engaging in immoral or nonmoral behaviours.

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Aim: Complete mesocolic excision (CME) is an oncologically driven technique for treating right colon cancer. While laparoscopic CME is technically demanding and has been associated with more complications, the robotic approach might reduce morbidity. The aim of this study was to assess the safety of stepwise implementation of robotic CME.

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Introduction: High-risk fertility behaviors (HRFB), including short birth intervals, early or late childbearing age, and high parity, are associated with adverse pregnancy outcomes. Understanding the importance of socioeconomic disparity in HRFB and the factors influencing this disparity is essential to improve maternal and child survival, Accordingly, this study investigated socioeconomic inequalities in HRFB over time and its contributing factors.

Methods: We included a total weighted sample of 11,163 and 5,527 women aged 15 to 49 years from the 2005 and 2019 Ethiopia Demographic and Health Surveys, respectively.

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Key steps in exposure techniques for robotic total mesorectal excision (TME).

Tech Coloproctol

December 2024

Colorectal Surgery, Champalimaud Foundation, Av. Brasilia, 1400-038, Lisbon, Portugal.

Aim: The use of robotic surgery is increasing significantly. Specific training is fundamental to achieve high quality and better oncological outcomes. This work defines key exposure techniques in robotic total mesorectal excision (TME).

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The molecular basis of pH sensing by the human fungal pathogen TOK potassium channel.

iScience

December 2024

Bioelectricity Laboratory, Department of Physiology and Biophysics, School of Medicine, University of California, Irvine, Irvine, CA 92697, USA.

Two-pore domain, outwardly rectifying potassium (TOK) channels are exclusively expressed in fungi. Human fungal pathogen TOK channels are potential antifungal targets, but TOK channel modulation in general is poorly understood. Here, we discovered that TOK (CaTOK) is regulated by extracellular pH, in contrast to TOK channels from other fungal species tested.

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The Cambrian explosion was a time of groundbreaking ecological shifts related to the establishment of the Phanerozoic biosphere. Trace fossils, which are the products of animals interacting with their substrates, provide a key record of the diversification of the benthos and the evolution of behavioral complexity through this interval. The Chapel Island Formation of Newfoundland in Canada hosts the most extensive trace-fossil record from the latest Ediacaran to Cambrian Age 2, spanning about 20 million years continuously.

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Convergent data, across species, paint a compelling picture of the critical role of the gut and its resident microbiota in several brain functions and disorders. The chemicals mediating communication along these sophisticated highways of the brain-gut-microbiome (BGM) axis include both microbiota metabolites and classical neurotransmitters. Amongst the latter, GABA is fundamental to brain function where it mediates the majority of neuronal inhibition.

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Background: Duchenne muscular dystrophy (DMD) is a severe neuromuscular disorder, often leading to wheelchair dependence by age 13 with limited treatment options, largely relying on glucocorticosteroids. We assessed the efficacy and safety of vamorolone, a modified synthetic corticosteroid, for DMD.

Methods: We performed a systematic review and meta-analysis using seven databases including prospective studies comparing vamorolone with glucocorticosteroids or placebo in DMD patients.

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Article Synopsis
  • Recidivism among individuals who have committed online child sexual exploitation is a major public health concern, necessitating a study of predictive risk factors.
  • Data from 228 adult males revealed that specific cognitive patterns and emotional connections with children are strong indicators of future sexual offenses, while consumption of certain pornographic materials correlates with recidivism rates.
  • The research highlights the importance of understanding these unique risk factors to develop targeted intervention strategies for this group of offenders.
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Palaeontology: Walking with pterosaurs.

Curr Biol

December 2024

School of the Environment and Life Sciences, University of Portsmouth, Portsmouth PO1 3AQ, UK. Electronic address:

Pterosaurs, iconic flying reptiles of the Mesozoic, walked on all fours. A new study has analysed their hand and foot anatomy and how it enabled the walking lifestyle that may have been the foundation of their attaining gigantic sizes.

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Background: Reactive astrogliosis and microgliosis are coordinated responses to CNS insults and are pathological hallmarks of traumatic brain injury (TBI). In these conditions, persistent reactive gliosis can impede tissue repopulation and limit neurogenesis. Thus, modulating this phenomenon has been increasingly recognized as potential therapeutic approach.

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Rapid Sex Chromosome Turnover in African Clawed Frogs (Xenopus) and the Origins of New Sex Chromosomes.

Mol Biol Evol

December 2024

UMR 7179, Mécanismes Adaptatifs et Evolution, Muséum national d'Histoire naturelle CNRS, Paris, France.

Sex chromosomes of some closely related species are not homologous, and sex chromosome turnover is often attributed to mechanisms that involve linkage to or recombination arrest around sex-determining loci. We examined sex chromosome turnover and recombination landscapes in African clawed frogs (genus Xenopus) with reduced representation genome sequences from 929 individuals from 19 species. We recovered extensive variation in sex chromosomes, including at least eight nonhomologous sex-associated regions-five newly reported here, with most maintaining female heterogamety, but two independent origins of Y chromosomes.

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Background: Accumulating evidence indicates that some ape species produce more alarm behaviors to potential dangers when in the presence of uninformed conspecifics. However, since previous studies presented naturalistic stimuli, the influence of prior experience could not be controlled for.

Method: To examine this, we investigated whether apes (wild chimpanzees of the Budongo Forest, Uganda) would communicate differently about a novel danger (an unusually large spider) depending on whether they were with an uniformed conspecific.

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Lithium (Li) is becoming increasingly important due to its use in clean technologies that are required for the transition to net zero. Although acidophilic bioleaching has been used to recover metals from a wide range of deposits, its potential to recover Li has not yet been fully explored. In this study, we used a model Fe(II)- and S-oxidising bacterium, (At.

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