Digital Commons Network^™

Biological Recruitment On Static And Boat Hull Panels Coated With Non-Toxic Fibre Flock, Julia Hinrichs

The Plymouth Student Scientist

Marine biofouling, the settlement of aquatic organisms on submerged surfaces, creates an estimated cost of 20 billion USD annually for the shipping industry in increased fuel consumption due to overgrowth. However, the existing antifouling solutions are being restricted by international organisations due to their adverse effects on the marine environment. In recent years, the research focus has shifted to non-toxic methods highlighting the importance of settlement cues of invertebrates. Biofoulers, such as invertebrate larvae and algal spores have been shown to respond to physical cues such as surface structure. The aim of this study was to test the environmentally friendly …

The Effect Of Seagrass Components On The Associated Bacterial Diversity And Antimicrobial Activity In Zostera Marina, Caroline Millan

The Plymouth Student Scientist

Seagrasses are marine angiosperms located in intertidal and sub-tidal waters. They are important ecosystem engineers that play a crucial role in the structure of habitats, allowing them to support a comprehensive diversity of life. Through fundamental ecological processes and the generation of niches, each seagrass species has aggregated an associated microbiome that lives among the various seagrass components and exhibit symbiotic relations. There have been studies investigating the diversity of the associated bacteria and elements of the resulting microbial activity, however these have primarily focused on tropical seagrass species and have failed to examine the extent of this bioactivity. This …

Age Differences In Facial First Impressions Of Traits Associated With Trustworthiness, Gulbeyaz Altun

The Plymouth Student Scientist

Older adults are more susceptible to becoming fraud victims due to increased generalised trust in others for assistance, leading to deception. Age differences in first impressions of unfamiliar faces on traits associated with trustworthiness was explored in this study. Investigating the various interpretations of trustworthiness across age has not been previously led. Using a data-driven approach, the key traits interpreted from trustworthiness were used in a trait rating task. Older adults provided higher ratings and showed an own-age bias for the traits trustworthy, honest, reliable, and loyal compared to younger adults, but not for the trait considerate. Mean trait ratings …

Investigating The Impacts Of Heterotrophic Nutrition On Acropora Microclados, Heather O'Keefe

The Plymouth Student Scientist

The Scleractinian coral Acropora microclados is a commercially important species that functions as both an autotroph and heterotroph. In ex situ coral aquaculture, elucidating an optimal diet to improve growth and resilience is critical in improving the sustainability and success of rearing corals for trade and conservation. To investigate the impacts of diet on A. microclados, three groups of 15 nubbins were kept under three different feeding regimes for three months at the National Marine Aquarium, Plymouth, UK. One group was fed nothing, the control (CTL), one group fed Artemia salina nauplii (ART) and one group fed a mixed diet …

Public Engagement In Environmental Issues: Investigating Factors Of Disengagement From An Individual And Organisational Perspective, Anna Carne

The Plymouth Student Scientist

Anthropogenic climate change is now a major issue facing the public, government, and environmental non-governmental organisations (ENGOs) alike. In order for climate goals set out by the conference of the parties (COP) summits to be reached, the public must be involved and feel a sense of responsibility to act. Though there have been previous studies investigating the levels of engagement and the actions that individuals take, the impact of certain factors on engagement is still not well understood. A UK survey open for two weeks and shared on social media was conducted. The survey consisted of open and closed questions …

An Investigation Into The Effects Of Weekly Habitual And Targeted Caffeine Consumption On Adult Runners' Endurance, Speed, And Mood, Elise Lucas

The Plymouth Student Scientist

BACKGROUND: Caffeine is a commonly consumed recreational drug which is also highly regarded as an ergogenic aid. Generally, users partake in sporadic and habitual caffeine consumption for functional benefits such as alertness or for social purposes, but targeted consumption prior to exercise is claimed to aid endurance, increase speed, and improve mood during exercise. OBJECTIVES: This questionnaire-based study aimed to evaluate the effect of targeted and randomised caffeine consumption on endurance, speed, and perceived mood in runners of varying levels. SUBJECTS: 489 subjects from 27 different countries (predominantly United States of America and United Kingdom) participated in the study (50.7% …

Reasons For Living Following An Acquired Brain Injury: A Mixed Thematic Analysis, Catalana Parris

The Plymouth Student Scientist

Considering the prevalence of acquired brain injury (ABI) and the concerning statistics around the associated risk of problematic substance use, impacted mental health, and suicidality (3-4 greater risk of suicidality in those with TBI), and the lack of qualitative, recent, and UK based research. This study aimed to explore what people’s reasons for living after ABI were. Individuals living with ABI were recruited via BABICM (British Association of Brain Injury and Complex Case Management) to participate in semi-structured interviews. A mixed thematic analysis was conducted on the transcripts using the themes from Knight, Norman and Simpson (2020) as a framework …

Unsupervised Machine Learning Using K-Means Identifies Radiomic Subgroups Of Pediatric Low-Grade Gliomas That Correlate With Key Molecular Markers, Debanjan Haldar, Anahita Fathi Kazerooni, Sherjeel Arif, Ariana Familiar, Rachel Madhogarhia, Nastaran Khalili, Sina Bagheri, Hannah Anderson, Ibraheem Salman Shaikh, Aria Mahtabfar, Meen Chul Kim, Wenxin Tu, Jefferey Ware, Arastoo Vossough, Christos Davatzikos, Phillip B Storm, Adam Resnick, Ali Nabavizadeh

Department of Neurosurgery Faculty Papers

Introduction: Despite advancements in molecular and histopathologic characterization of pediatric low-grade gliomas (pLGGs), there remains significant phenotypic heterogeneity among tumors with similar categorizations. We hypothesized that an unsupervised machine learning approach based on radiomic features may reveal distinct pLGG imaging subtypes.

Methods: Multi-parametric MR images (T1 pre- and post-contrast, T2, and T2 FLAIR) from 157 patients with pLGGs were collected and 881 quantitative radiomic features were extracted from tumorous region. Clustering was performed using K-means after applying principal component analysis (PCA) for feature dimensionality reduction. Molecular and demographic data was obtained from the PedCBioportal and compared between imaging subtypes.

Results: …

Risk Factors For Sars-Cov-2 Transmission In Close Contacts Of Adults At High Risk Of Infection Due To Occupation: Results From The Contact Tracing Strategy Of The Covida Epidemiological Surveillance Study In Bogotá, Colombia, In 2020-2021, Andrea Ramírez Varela, Sandra Contreras-Arrieta, Guillermo Tamayo-Cabeza, Leonardo Salas Zapata, Yuldor Caballero-Díaz, Luis Jorge Hernández Florez, Andrés Patiño Benavidez, Rachid Laajaj, Fernando De La Hoz, Giancarlo Buitrago Gutierrez, Silvia Restrepo, Eduardo Behrentz

Faculty, Staff and Student Publications

OBJECTIVES: To estimate the risk factors for SARS-CoV-2 transmission in close contacts of adults at high risk of infection due to occupation, participants of the CoVIDA study, in Bogotá D.C., Colombia.

SETTING: The CoVIDA study was the largest COVID-19 intensified sentinel epidemiological surveillance study in Colombia thus far, performing over 60 000 RT-PCR tests for SARS-CoV-2 infection. The study implemented a contact tracing strategy (via telephone call) to support traditional surveillance actions performed by the local health authority.

PARTICIPANTS: Close contacts of participants from the CoVIDA study.

PRIMARY AND SECONDARY OUTCOME MEASURES: SARS-CoV-2 testing results were obtained (RT-PCR with CoVIDA …

Multiomics Characterization Of Methicillin-Resistant Staphylococcus Aureus (Mrsa) Isolates With Heterogeneous Intermediate Resistance To Vancomycin (Hvisa) In Latin America, Betsy E Castro, Rafael Rios, Lina P Carvajal, Mónica L Vargas, Mónica P Cala, Lizeth León, Blake Hanson, An Q Dinh, Oscar Ortega-Recalde, Carlos Seas, Jose M Munita, Cesar A Arias, Sandra Rincon, Jinnethe Reyes, Lorena Diaz

Faculty, Staff and Student Publications

BACKGROUND: Heterogeneous vancomycin-intermediate Staphylococcus aureus (hVISA) compromise the clinical efficacy of vancomycin. The hVISA isolates spontaneously produce vancomycin-intermediate Staphylococcus aureus (VISA) cells generated by diverse and intriguing mechanisms.

OBJECTIVE: To characterize the biomolecular profile of clinical hVISA applying genomic, transcriptomic and metabolomic approaches.

METHODS: 39 hVISA and 305 VSSA and their genomes were included. Core genome-based Bayesian phylogenetic reconstructions were built and alterations in predicted proteins in VISA/hVISA were interrogated. Linear discriminant analysis and a Genome-Wide Association Study were performed. Differentially expressed genes were identified in hVISA-VSSA by RNA-sequencing. The undirected profiles of metabolites were determined by liquid chromatography and …

Highly Efficient Photocatalysts For Methylene Blue Degradation Based On A Platform Of Deposited Go-Zno Nanoparticles On Polyurethane Foam, Mohamed Morsy

Nanotechnology Research Centre

No abstract provided.

Successful Treatment Of Myofascial Pain Syndrome (Mps) With Surgical Cauterization Of Temporalis Muscle Trigger Points: A Case Report, Craig Pearl, Brendan Moxley, Andrew Perry, Nagi Demian

Faculty, Staff and Student Publications

For patients suffering from myofascial pain syndrome (MPS) affecting muscles of mastication, traditional trigger point therapy treatment regimens can prove inconvenient, due to the short duration of pain relief after each injection and expense of repeated visits which are often not covered by insurance. We present a case of a patient treated using an alternative technique that could develop into an additional modality for treating MPS patients who are refractory to conservative treatment. This technique involves identifying and marking the patient's trigger points and surgically cauterizing each location using a Bovie electrosurgical unit. While traditional trigger point injection therapy for …

Trends And Issues Involving Disabilities In Higher Education, Jm Kauffman, D Anastasiou, M Felder, J Lopes, Ba Hallenbeck, G Hornby, B Ahrbeck

More Faculty of Arts, Humanities and Business Research

People with disabilities have often been discriminated against in higher education; however, many institutions of higher education find ways of providing access to higher education for those with most forms of disabilities. Progress has been made in providing such access but undoubtedly there is still a need for more disability awareness, anti-stigma, and anti-discrimination training. At the same time higher education requirements, by default, involve higher cognitive capabilities. Some disabilities, those involving severe limitations of cognitive functioning, face insurmountable difficulties in meeting these higher intellectual demands, even with the most reasonable accommodations. Teacher education, for example, requires special attention to …

Behavioral Strategies Of Prehistoric And Historic Children From Dental Microwear Texture Analysis, Almudena Estalrrich, Kristin L. Krueger

Anthropology: Faculty Publications and Other Works

Reconstructing the dietary and behavioral strategies of our hominin ancestors is crucial to understanding their evolution, adaptation, and overall way of life. Teeth in general, and dental microwear specifically, provide a means to examine these strategies, with posterior teeth well positioned to tell us about diet, and anterior teeth helping us examine non-dietary tooth-use behaviors. Past research predominantly focused on strategies of adult individuals, leaving us to wonder the role children may have played in the community at large. Here we begin to address this by analyzing prehistoric and historic children through dental microwear texture analysis of deciduous anterior teeth.

Tribal Sovereignty And The Right To Life, Clare Holtzman

Duke Journal of Comparative & International Law

On August 26, 2020, the only Native American on federal death row, Lezmond Mitchell was executed by the federal government for the murder of two Navajo citizens on Navajo Nation land. Federal law typically gives Tribal Nations the right to determine whether the death penalty is used against their citizens for crimes committed between Tribal citizens on Tribal land. Yet here, the federal government utilized a loophole to seek the death penalty against the Navajo Nation's wishes. Lezmond Mitchell was not a sympathetic man by any means; indeed, he brutally killed a grandmother and her young granddaughter to steal their …

Bankruptcy Basics: What The U.S. Can Learn From The U.K. Filing Processes, Courtney Kobren

Duke Journal of Comparative & International Law

Although filing for bankruptcy is the primary form of economic relief for U.S. consumers in financial distress, pro se debtors lack access to the consumer bankruptcy system. An individual debtor faces many challenges when filing for bankruptcy without an attorney, since the debtor must rely on free access to the information provided by the U.S. Courts website. However, that information is vague and presented in complex legalese and dissuasive diction. On the other hand, U.K. debtors who need financial relief can file for bankruptcy through a clear and accessible bankruptcy filing process. U.K. debtors also have access to free consumer …

Sovereignty In The Era Of Fragmentation – Eu Trade Agreements And The Notion Of Statehood In International Law, Harri Kalimo, Shorena Nikoleishvili

Duke Journal of Comparative & International Law

In this article, we explore the theme of sovereignty in the context of fragmented international law. We observe that the sovereignty of States may become relativized, not only by the political power of other States, but by its exposure to multiple, functionally separate fields of law. We analyze this theme by asking whether trade agreements as instruments of economic law offer a venue for discussing the sovereignty of sub-statal entities that lack standing on the more traditional international forums. Our analysis focuses first on a recent decision by the Court of Justice of the European Union, which concerned the status …

Journal Staff

Duke Journal of Comparative & International Law

No abstract provided.

An Ad Hoc Dispute Settlement Mechanism Or A Harmonization Mission? A Reappraisal Of Jurisprudential Fragmentation In International Investment Arbitration, Mohammad Hamdy

Duke Journal of Comparative & International Law

Contrary to the numerous accounts of fragmentation in investment arbitration case law, this Article shows that the case law depicts a high degree of cohesion. The Article argues that jurisprudence in investment arbitration is stabilized by distinct mainstream interpretations of the key provisions of bilateral investment treaties, the main legal instrument in international investment law. The Article considers the frequently cited disagreements among arbitral tribunals in light of competing commitments to either regulatory pluralism or harmonization. It demonstrates that the vast majority of tribunals interpret bilateral investment treaties in a way that circumscribes pluralism and furthers the harmonization of the …

24-1, 2022 Masthead

San Diego International Law Journal

No abstract provided.

End Crime With Harm? Castration For Sexual Offenders In Hong Kong, Max Hua Chen

San Diego International Law Journal

The issue of post-conviction treatment of sex offenders has been the subject of debate and changes to State legislation, particularly in respect of paedophile offences. One such treatment method is through chemical or physical castration on either a mandatory or a voluntary basis. In this regard, some States have implemented these measures for certain paedophile offences. Hong Kong (HK) has no such laws in place. Researchers such as William Winslade and his colleagues highlighted that whilst paedophilia may not be a stringently defined condition, it is one which involves a “reinforcing [pattern] of sexual behaviors,” with the result that sexual …

Long Live Joint Criminal Enterprise: With A Particular Reference To Tadić’S Interactive Construction Between “The Beast” And Specific Direction, Miguel Ângelo Loureiro Manero De Lemos

San Diego International Law Journal

The idea that Joint Criminal Enterprise, in particular its extended version, contravenes fundamental principles of criminal law has gained track. Thus, not only did the International Criminal Court distance itself from the construct but, today, the widely held view is that the extended version should be discarded, not least because it is not grounded in customary international law. This Article challenges that view. While addressing scholarly criticism towards Joint Criminal Enterprise, and demonstrating why the “beast” is a solid construction, it argues that prosecutors and judges must look past the written provisions of the Statute of the International Criminal Court …

‘I Will Control Your Mind’: The International Regulation Of Brain-Hacking, Thibault Moulin

San Diego International Law Journal

In the near future, the use of neurotechnologies—like brain-computer interfaces and brain stimulation—could become widespread. It will not only be used to help persons with disabilities or illness, but also by members of the armed forces and in everyday life (e.g., for entertainment and gaming). However, recent studies suggested that it is possible to hack into neural devices to obtain information, inflict pain, induce mood change, or influence movements. This Article anticipates three scenarios which may be challenging in the future—i.e., brain hacking for the purpose of reading thoughts, remotely controlling someone, and inflicting pain or death—and assesses their compliance …

Deportations For Drug Convictions In The United States And The European Union: Creating A More Compassionate Approach Toward Drug Convictions In The Immigration Law, Megan Smith

San Diego International Law Journal

This Comment begins by examining and comparing the legal framework for deportation and other immigration consequences for convictions of drug offenses in the United States, the European Union, and the United Kingdom. This Comment then looks at the harsh effects of current immigration policy on individuals and marginalized communities. Finally, this Comment argues that immigration law should be reformed to adopt a more humanitarian approach toward non-citizens convicted of drug offenses. Deportation and other harsh immigration consequences for drug offenses levy disproportionately severe punishments toward vulnerable minority immigrant communities, exposing them to consequences much harsher than non-immigrants would face for …

Multiomics Approach Captures Hepatic Metabolic Network Altered By Chronic Ethanol Administration, Isin Tuna Sakallioglu, Bridget Tripp, Jacy Kubik, Carol A. Casey, Paul G. Thomes, Robert Powers

Department of Chemistry: Faculty Publications

Using a multiplatform and multiomics approach, we identified metabolites, lipids, proteins, and metabolic pathways that were altered in the liver after chronic ethanol administration. A functional enrichment analysis of the multiomics dataset revealed that rats treated with ethanol experienced an increase in hepatic fatty acyl content, which is consistent with an initial development of steatosis. The nuclear magnetic resonance spectroscopy (NMR) and liquid chromatography–mass spectrometry (LC-MS) metabolomics data revealed that the chronic ethanol exposure selectively modified toxic substances such as an increase in glucuronidation tyramine and benzoyl; and a depletion in cholesterol-conjugated glucuronides. Similarly, the lipidomics results revealed that ethanol …

Emulating Future Neurotechnology Using Magic, Jay A. Olson, Mariève Cyr, Despina Z. Artenie, Thomas Strandberg, Lars Hall, Matthew L. Tompkins, Amir Raz, Petter Johansson

Psychology Faculty Articles and Research

Recent developments in neuroscience and artificial intelligence have allowed machines to decode mental processes with growing accuracy. Neuroethicists have speculated that perfecting these technologies may result in reactions ranging from an invasion of privacy to an increase in self-understanding. Yet, evaluating these predictions is difficult given that people are poor at forecasting their reactions. To address this, we developed a paradigm using elements of performance magic to emulate future neurotechnologies. We led 59 participants to believe that a (sham) neurotechnological machine could infer their preferences, detect their errors, and reveal their deep-seated attitudes. The machine gave participants randomly assigned positive …

Information Seeking Behaviour Of Newspaper Journalists Of Karnataka State: A Study, Rajashekhar Mahadevagouda, Pavithrabai M S

Library Philosophy and Practice (e-journal)

Journalists search, access, and make use of a variety of information sources, both in print and electronic media. Journalists have been increasingly reliant on internet tools in recent years. An attempt has been made through the study to identify the information-seeking behaviour of journalist working in 39 newspapers at the national, state, as well as regional levels. A total of 610 respondents have responded to the questionnaire. The data shows that data indicates that approximately 60% of the respondents are below 35 years. The study witnessed that more than 30% of respondents opined that the information required about all areas …

Lecturers’ Awareness, Perception And Utilization Of Institutional Repositories In Two Universities In Nigeria, Lawrence Akingbade

Library Philosophy and Practice (e-journal)

Abstract

The purpose of this study was to examine the lecturers awareness, perception and utilisation of institutional repositories in two universities in Nigeria. The universities include the Ahmadu Bello University, Zaria and University of Jos. The research design adopted for the study was correlational research design, while the questionnaire was the instrument used for data collection. The questionnaire was grouped into five sections and most of the questions were close ended. Also validity and reliability of the questionnaire was done in order to obtain the desired results. Out of 642 number of questionnaire distributed, 473 were completed, returned and found …

Information Retrieval Skills As Correlate Of Scholarly Research Among Postgraduate Students In Selected Universities In Oyo And Lagos States, Nigeria, Kolawole Oluwatola, Lawrence Akingbade

Library Philosophy and Practice (e-journal)

Abstract

The main objective of the study is to investigate information retrieval skills as correlate of scholarly research among postgraduate students in selected Universities in Oyo and Lagos States, Nigeria. Survey research methodology was used with a total sample size of 379 using single random sampling techniques to select postgraduate students. Data was collected mainly through questionnaire and analyzed using frequency distribution and regression analysis run on SPSS (2.0). The result revealed the types of information retrieval skills, the study revealed that information retrieval skills highly influence the postgraduate students’ scholarly research as it allowed them to easily recognition their …

Collaborative Interprofessional Health Science Student Led Realistic Mass Casualty Incident Simulation, Deborah L Mccrea, Robert C Coghlan, Tiffany Champagne-Langabeer, Stanley Cron

Faculty, Staff and Student Publications

In collaboration, a health science university and a fire department offered a mass casualty incident (MCI) simulation. The purpose of this study was to evaluate a cross-section of student health care providers to determine their working knowledge of an MCI. Students were given a pretest using the Emergency Preparedness Information Questionnaire (EPIQ) and the Simple Triage and Rapid Transport (START) Quiz. The EPIQ instrument related to knowledge of triage, first aid, bio-agent detection, critical reporting, incident command, isolation/quarantine/decontamination, psychological issues, epidemiology, and communications. The START Quiz gave 10 scenarios. Didactic online content was given followed by the simulation a few …