8 10 853 https://urss.warwick.ac.uk/files/original/50eefa7c2d0a775517ef4fb69d9843e2.pdf 63daf5681e7b44df7be5c28dd22f7d77 Academic Poster An academic poster Abstract The abstract of the paper Factorising integers using elliptic curves Meta Tags Meta tags Mathematics, Elliptic curves Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Factorising integers using elliptic curves Creator An entity primarily responsible for making the resource Hamza Zahid Subject The topic of the resource Mathematics https://urss.warwick.ac.uk/files/original/8f115338bd4179e18937e255738b8c03.pdf 0d336b3a30c53ac855eb7403676c9089 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Social Sciences Subject The topic of the resource Social Sciences Academic Paper An academic paper Abstract The abstract of the paper This project studies the weak and strong cop numbers of Cayley graphs of finitely generated groups, with particular emphasis on methods for proving that the strong cop number is infinite. After reviewing several known results and techniques, we investigate a number of non-hyperbolic examples. For right-angled Artin groups, whose strong cop numbers are already determined by known results, we give a direct proof using explicit quasi-retractions onto ℤ². A novelty of this work is the proof that the discrete three-dimensional Heisenberg group H₃(ℤ) has infinite strong cop number. To show this, we introduce a weighted coordinate function comparable to the word metric and use the Heisenberg dilations to construct a sequence of quasi-homotheties. Motivated by this argument, we study a semidirect product ℤ³ ⋊ₐ ℤ and establish an analogous word-metric comparison, while the corresponding quasi-homothety problem is left open. Meta Tags Meta tags geometric group theory, cops and robbers, strong cop number, weak cop number, Cayley graphs, Heisenberg group, quasi-homothety, right-angled Artin groups Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Infinite Strong Cop Number of the Three-Dimensional Heisenberg Group Subject The topic of the resource Geometric group theory and coarse cops and robbers on Cayley graphs Date A point or period of time associated with an event in the lifecycle of the resource September 2026 Contributor An entity responsible for making contributions to the resource Dr Jerónimo García Mejía (URSS Supervisor) https://urss.warwick.ac.uk/files/original/78556ff2169f5de5007487a6ad32c038.pdf afe29327cfaae33abb0eb248dcf27bbd Academic Paper An academic paper Abstract The abstract of the paper The Russia--Ukraine war disrupted global food commodity markets, raising concerns over food prices and food security across Africa. This study examines whether countries with greater pre-war dependence on cereal imports from Russia and Ukraine experienced larger increases in domestic food inflation following the outbreak of the conflict, and whether transmission varied with economic development. Using a monthly panel of 25 African economies from January 2017 to September 2025, the study employs a Difference-in-Differences framework exploiting cross-country variation in pre-war import dependence. Country and month fixed effects account for unobserved heterogeneity and common global shocks, while exchange-rate movements are included as a control. Robustness is assessed using alternative treatment definitions, fixed-effects specifications, placebo tests and leave-one-country-out estimation. The baseline results provide limited evidence that pre-war dependence on Russian and Ukrainian cereal imports systematically increased domestic food inflation following the outbreak of the war. However, substantial heterogeneity emerges across countries. Higher economic development is associated with significantly smaller increases in food inflation. Further analysis indicates that supplier concentration and domestic cereal production capacity help explain this resilience. Overall, the findings suggest that structural characteristics, rather than import dependence alone, shape countries' resilience to global food commodity shocks. Meta Tags Meta tags Economics, Food inflation, Food prices, Commodity price shocks, Russia-Ukraine war, Africa, Economic development, Food security, Cereal imports, Import dependence, Economic resilience, Difference-in-Differences, International economics Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource The Transmission of Global Food Commodity Shocks to Food Inflation in Africa: Evidence from the Russia–Ukraine War Subject The topic of the resource International Economics / Development Economics - Food Prices, Commodity Shocks and Economic Resilience Date A point or period of time associated with an event in the lifecycle of the resource Jun-Aug 2026 Contributor An entity responsible for making contributions to the resource Daniel Whitehouse, Prof Natalie Chen https://urss.warwick.ac.uk/files/original/0fd2b8bd58c678c500666cee789a8baa.docx 973eca4e8f46dc8d558743c49542c4e9 Academic Paper An academic paper Abstract The abstract of the paper Fraudulent banking transactions create substantial financial and operational risks for financial institutions and their customers. The increasing availability of transaction-level data provides an opportunity to identify potentially fraudulent activity using statistical learning methods. This study aims to develop and compare statistical models for predicting whether a banking transaction is fraudulent. A labelled dataset containing approximately 200,000 transaction records is used, with fraud status represented by the binary response variable Fraud. After the removal of direct personal identifiers and other unsuitable fields, variables describing transaction characteristics, customer information, account balances, merchant categories, locations and transaction devices are considered as potential predictors. The labelled data are divided into a 70% training set and a 30% test set using stratified sampling. Two multiple logistic regression models are developed using different sets or representations of the predictor variables. For each model, backward stepwise selection based on the Akaike Information Criterion is used to reduce the full set of candidate predictors. Five-fold cross-validation is conducted within the training data to examine the predictive performance of the modelling procedures. The two final models are then fitted using the complete training set and applied to the independent test set. The test predictions are compared with the actual fraud outcomes using confusion matrices, and the predictive accuracy of each model is calculated. Model 1 achieved a test accuracy of 96.91%, while Model 2 achieved a slightly higher accuracy of 96.93%. Therefore, Model 2 was selected as the final model based on its higher test accuracy. The findings demonstrate how logistic regression and backward variable selection can be used to support the identification of potentially fraudulent banking transactions. However, the results should be interpreted considering limitations relating to data quality and the possible use of simulated transaction data. Meta Tags Meta tags fraud detection, banking transactions, logistic regression, statistical modelling, R Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Fraud detection in bank transactions using statistical modelling Subject The topic of the resource Fraud detection in bank transactions Date A point or period of time associated with an event in the lifecycle of the resource 2026-09-26 Contributor An entity responsible for making contributions to the resource Lisa Li https://urss.warwick.ac.uk/files/original/93bb87e14c8b5839bb4f97153216f686.pdf 352b456ef30ccf63fe168aa79ae2da5a Academic Poster An academic poster Abstract The abstract of the paper Mannan is a polymer of simple sugar units which forms a major part of the primary cell walls of most plants, but its structure can vary drastically across plant species of different evolutionary stages with no well-understood reason. Samples of a model plant (Arabidopsis thaliana ) with different modifications to the genes which control its mannan will be studied and compared. This should provide some insight into the role mannan plays in the cell. Solid-state NMR, which uses the behaviour of atomic nuclei in a magnetic field to reveal structural information about a sample, is the only non-destructive technique that can provide sufficiently detailed information on the sample cells. 1D and 2D NMR spectra will be acquired, with the spectral shifts being referenced against the CCMRD database. The spectra acquired will reveal the proximity and interactions between plant cell wall components. Future research could solidify the findings through repetition of the study on softwoods as opposed to flowering plants such as Arabidopsis thaliana . Meta Tags Meta tags ssNMR, Mannan, Non-Destructive Testing, Cell Wall Architecture Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Investigation of mannan in the primary cell wall of Arabidopsis thaliana using solid-state NMR Creator An entity primarily responsible for making the resource Maria Gonsalves Subject The topic of the resource Physics of Plant Biology https://urss.warwick.ac.uk/files/original/1f4907b5873caca7238f64b79289a74a.pdf f5e86dc60ce312c2b3cbdb428eeb8f87 Academic Poster An academic poster Abstract The abstract of the paper This project explores the possibility of using CAR-T therapy to treat allergies. A CAR-T receptor specific to IgE antibodies was designed, a plasmid containing the receptor was created and this was expressed in Jurkat T cells. An activation assay confirmed that these cells were activated in the presence of the IgE Fc region. This CAR-T receptor may therefore be used for further research as it could be able to specifically target and kill B cells expressing IgE. Meta Tags Meta tags Immunology, medicine, biology, CAR-T therapy, IgE, allergy Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Exploring IgE-reactive CAR-T cells as a potential therapy for IgE-mediated allergy Creator An entity primarily responsible for making the resource Beth Lovell Contributor An entity responsible for making contributions to the resource John R James Subject The topic of the resource Immunology https://urss.warwick.ac.uk/files/original/ace63c5b93cf482f8d050781af77bfba.pdf efc67a1749184d7a3f00a33a7504fbf4 Academic Poster An academic poster Abstract The abstract of the paper This poster examines changes in caregivers use of iconic gestures during shared book reading with infants aged 13-14 months and 18 months. It investigates whether caregivers increase their use of iconic gestures as infants develop, and whether this change is due to unique or repeated gestures. The findings show caregivers produce significantly more iconic gestures at 18 months, with increase driven by unique gestures. Caregivers further shift towards object based & shorter gestures, suggesting they communicative behaviour adapts alongside infants developing language. Meta Tags Meta tags Psychology, Iconic Gestures, Infant development, Caregiver Infant Interaction, Early Communication Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource From 13-14 to 18 Months: A Comparison of Caregivers’ use of Iconic Gestures During Shared Book Readings with Infants Creator An entity primarily responsible for making the resource Leah Palmer Contributor An entity responsible for making contributions to the resource Suzanne Aussems, Teruni Ahamat Subject The topic of the resource Caregivers' Iconic Gestures https://urss.warwick.ac.uk/files/original/95fd450fc4783e941c7d8ced1888ede2.docx f3eb89b93e28f136ac62b1e2155d54ee Academic Paper An academic paper Abstract The abstract of the paper This paper discusses the polity of the Norman adventurer Roussel de Bailleul which existed between 1073 and 1075. It answers how the polity survived for nearly two years with the use of a 'Norman Frontier Society Model' which was similar to other Norman polities such as the Kingdom of Sicily and the Principality of Antioch. Alongside this model, primary sources are utilised to create a contextualised picture of this polity in terms of its politics, economy and society. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource The Normans in Anatolia: An Analysis of the Functioning of the Polity of Roussel de Bailleul during the 1070s Subject The topic of the resource Byzantine Anatolia during the 1070s, primarily the polity of Roussel de Bailleul Date A point or period of time associated with an event in the lifecycle of the resource 1073-1075 Contributor An entity responsible for making contributions to the resource Aysu Dincer Hadjianastasis https://urss.warwick.ac.uk/files/original/e9130f7b896ba563cd0fc5c8fff0da1c.pdf f37c7a13c5a16fff87554d6e1b979686 Academic Paper An academic paper Abstract The abstract of the paper This project investigates digit phenomena motivated by a question of Paul Erdős. We study the occurrence of the digit 7 in powers of 2, asking whether every sufficiently large power of 2 contains the digit 7. More generally, we consider the sequence (a·2ⁿ) for varying positive integers a and formulate the following conjecture: the set of a for which a·2ⁿ contains the digit 7 for all sufficiently large n has full natural density. In pursuit of this conjecture, we develop useful combinatorial and arithmetic estimates, together with a dynamical approach to the leading digits of these numbers. Meta Tags Meta tags number theory, digit occurrence, powers of two, geometric progressions, Benford's law, natural density, logarithmic density, dynamical systems, shrinking targets, irrational rotations, combinatorics, Erdős Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Digit Occurrence in Geometric Progressions Subject The topic of the resource Mathematics – Number Theory and Dynamical Systems Date A point or period of time associated with an event in the lifecycle of the resource 21/09/2026 Contributor An entity responsible for making contributions to the resource Joel Moreira https://urss.warwick.ac.uk/files/original/0e581eb69c3755e054beead74664ce53.pdf f87bea91357bd4a77bb6461d8fed7479 Academic Poster An academic poster Abstract The abstract of the paper In this project, I investigate how the timing and strength of mosquito vector-control interventions can be optimised to reduce dengue transmission in Veracruz, Mexico. I develop a seasonally forced SEIR model, fitted to historical dengue case data from 2006, to assess the effectiveness of larval control and adulticide independently and in combination. I explore how changes in implementation start day, intervention duration and control strength affect the reduction in dengue cases to identify the optimal strategy. I then explore how long their effectiveness can be maintained when the intervention is delayed. Meta Tags Meta tags Dengue, Vector control, Intervention timing, Model fitting, Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Optimising mosquito control timing to reduce dengue cases in Veracruz, Mexico Creator An entity primarily responsible for making the resource Rhiana Arora Contributor An entity responsible for making contributions to the resource Alexander Kaye Subject The topic of the resource Vector control of Dengue