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Articles by Ryan Buchanan
Deformation Quantization of Distributed Inference: The Convex Case
This open access article is published under a , which permit the free download, distribution, and reuse, provided that the author and preprint are cited in any reuse.
Riemann-Hypothesis Witness Fibres, Quantitative Θ-Atlas Ξ-Certificates, Criterion Absorption, Nullity Matching, and Universal Selected Logical Nullity
This version is not peer-reviewed. Parker M. D. Emmerson * ,Ryan J. Buchanan * Parker M. D. Emmerson * ,Ryan J. Buchanan * You are already at the latest version We separate four levels associated with the Riemann Hypothesis and strengthen the selected \(\Xi\)-certificate layer by an explicit theta-kernel atlas theorem. The resulting framework is a theory of RH-specific analytic and number-theoretic reasoning as exact selected sign-fibre reasoning.
Peer Interventions for Hepatitis C Testing and Treatment in OECD Countries: A Systematic Scoping Review
1 Introduction Hepatitis C virus (HCV) is a blood-borne virus that can lead to chronic disease, cirrhosis and hepatocellular carcinoma [1]. The advent of direct-acting antivirals (DAAs) has made HCV elimination feasible, prompting the World Health Organisation (WHO) to set targets for HCV elimination by 2030 [1, 2].
Causal Set Approach to AQFT
Submitted: 19 January 2026 You are already at the latest version The goal of this paper is to combine algebraic quantum field theory with methods from modal logic and the causal set program. We introduce a factorially damped past-influence operator on causal sets, formulate locally covariant nets over Alexandrov intervals, and give discrete analogues of the Haag–Kastler axioms. We close by sketching a route toward dynamics via sequential growth and incidence-algebra localization.
A Truncated Quasiconformal Energy for the Riemann ξ-Function and Sharp Extremal-Length/Teichmüller Lower Bounds
This version is not peer-reviewed. Submitted: 08 January 2026 You are already at the latest version We define a concrete ``truncated quasiconformal energy'' $E_\xi(T)$ associated to the Riemann $\xi$--function on a height window $|t|<T$.
(p, q)-String Junctions as Interstitial Fields on a Modal Lightcone
This version is not peer-reviewed. Submitted: 05 December 2025 You are already at the latest version We develop a framework in which lightcones, $(p,q)$ strings, and M-theory compactifications are equipped with an explicit layer of modal structure. Starting from Minkowski spacetime $\mathbb{M}^4$ with its usual null cones, we consider a background $\mathbb{M}^{4\times 7} = \mathbb{M}^4 \times G_2$ and attach to each spacetime point $\mathfrak{x}$ an internal $G_2$-source fiber.
Decorated Loop-Spaces I: Foundations and Applications
Submitted: 05 December 2025 You are already at the latest version Classical loop-spaces capture cyclic behaviour in topology but are blind to the auxiliary data that often drives real-world quasi-periodic phenomena. In this paper we introduce decorated loop-spaces, organised into a category $\mathbf{DecLpSpc}$, whose objects are spaces equipped with “decorators” (labelling generators by auxiliary data) and whose morphisms are “connectors” acting on families of functions.
Screening to identify people with type 2 diabetes at risk of liver cancer in primary care: a randomised controlled trial protocol
Introduction Cancer is the leading cause of mortality in patients with type 2 diabetes mellitus (T2DM)1 and is strongly associated with site-specific cancers including hepatocellular carcinoma (HCC).2 830 200 people died from HCC in 2020, and the incidence of HCC is expected to increase by 55% in the next 20 years.3 HCC is now the fastest growing indication for liver transplantation,4 and it is expected to become the third most common cause of cancer death worldwide by 2030.5 HCC has a very...
Inequity in end‐of‐life care for patients with chronic liver disease in England
Limitations Due to a lack of granularity in HES coding, we were unable to capture the precise timing of SPC input during each admission or non-SPC interventions by clinical teams providing the overall care for these patients.
Community pharmacies have an essential role in sustaining the elimination of hepatitis C in England
Pharmacies can provide easy access to hepatitis C testing for people who inject drugs, helping to control infection rates and allow the elimination of the virus in England by 2025. Hepatitis C Hepatitis C (HCV) is a blood-borne virus that is most common in people who inject drugs (PWID), owing to transmission of the virus through the sharing of injecting equipment.
Endoscopic ultrasound-guided liver biopsy: down but not out
Endoscopic ultrasound-guided liver biopsy: down but not out http://orcid.org/0000-0003-3042-6574Nadeem Akhter Tehami1,2, http://orcid.org/0000-0002-1273-9561Keith Siau3, Ryan Buchanan1, Eleanor Jaynes4, Ben Maher2,5 1 Department of Hepatology, University Hospital Southampton NHS Foundation Trust, Southampton, UK 2 Interventional Endoscopy Unit, University Hospital Southampton NHS Foundation Trust, Southampton, UK 3 Department of Gastroenterology, Dudley Group Hospitals NHS Foundation Trust,...
Boiler Room Festival 2021: Barcelona | Metal Magazine
This Friday and Saturday November 26 and 27, the global underground’s most beloved institution, Boiler Room, is bringing the third and final iteration of its 2021 festival to Barcelona. Nitsa club, located within Barcelona’s famed Sala Apolo, will play host to a plethora of artists and DJs, both from Barcelona itself and beyond.
Building on hepatitis C testing: the potential to identify alcohol-related liver disease through community pharmacy
Abstract Some community pharmacists offer alcohol screening and a brief intervention to reduce alcohol misuse, and evidence has shown that pharmacists can identify a high proportion of people who drink above recommended limits when compared to the general population. A unique attribute of community pharmacies is their accessibility to those from areas of higher deprivation. It is well recognised that alcohol-related mortality is highest in these areas.
Endoscopic ultrasound-guided liver biopsy: down but not out
Endoscopic ultrasound-guided liver biopsy: down but not out http://orcid.org/0000-0003-3042-6574Nadeem Akhter Tehami1,2, http://orcid.org/0000-0002-1273-9561Keith Siau3, Ryan Buchanan1, Eleanor Jaynes4, Ben Maher2,5 1Department of Hepatology, University Hospital Southampton NHS Foundation Trust, Southampton, UK 2Interventional Endoscopy Unit, University Hospital Southampton NHS Foundation Trust, Southampton, UK 3Department of Gastroenterology, Dudley Group Hospitals NHS Foundation Trust,...
Endoscopic ultrasound-guided liver biopsy: down but not out
Endoscopic ultrasound-guided liver biopsy: down but not out Statistics from Altmetric.com Request Permissions If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways. Copyright information: © Author(s) (or their employer(s)) 2021. No commercial re-use. See rights and permissions. Published by BMJ.
Reduction of HbA1c in patients with type 2 diabetes following duodenal mucosal resurfacing: could other factors be at play?
Reduction of HbA1c in patients with type 2 diabetes following duodenal mucosal resurfacing: could other factors be at play?
RE: Early application of haemostatic powder added to standard management for oesophagogastric variceal bleeding: a randomised trial
RE: Early application of haemostatic powder added to standard management for oesophagogastric variceal bleeding: a randomised trial Michael Johnston1, Charlotte Cook1,2, http://orcid.org/0000-0003-0850-5575Ryan Malcolm Buchanan1,2 1 Department of Hepatology, University Hospital Southampton NHS Foundation Trust, Southampton, UK 2 Primary Care and Population Sciences, University of Southampton, Southampton, UK Correspondence to Dr Ryan Malcolm Buchanan, Primary Care and Population Sciences,...
Reduction of HbA1c in patients with type 2 diabetes following duodenal mucosal resurfacing: could other factors be at play?
Reduction of HbA1c in patients with type 2 diabetes following duodenal mucosal resurfacing: could other factors be at play?
Cost-effectiveness of HCV Testing in Community Pharmacies
Abstract and Introduction Abstract New antiviral drugs with high efficacy mean the hepatitis C virus (HCV) can now be eliminated. To achieve this, it is necessary to identify undiagnosed cases of HCV. However, the costs of testing should be considered when judging the overall cost-effectiveness of treatment. This study describes the cost-effectiveness of a community pharmacy testing service in a population of people at risk of HCV living on the Isle of Wight (United Kingdom).
Reviewed: Bass Day at Boiler Room Festival 2019
In October 2019 South London’s cultural and creative hub Peckham, was honoured with playing host to this year’s Boiler Room Festival. Showcasing a different underground scene each day over four days, the multi-event programme featured emerging artists from contemporary jazz, rap, bass and club. Last month I told Data Transmission about my top picks to watch at the bass day of Boiler Room Festival, which I was lucky enough to attend.
The testing of people with any risk factor for Hepatitis C in community pharmacies is cost effective
ORIGINAL PAPER The testing of people with any risk factor for Hepatitis C in community pharmacies is cost effective Ryan Buchanan Corresponding Author E-mail address: ryan.buchanan@nhs.net Department of Population Science and Medical Statistics, Faculty of Medicine, C level, South Academic block, University of Southampton, Southampton, Hampshire, UK Corresponding author Email: ryan.buchanan@nhs.net Search for more papers by this author This article has been accepted for publication and...
RE: Early application of haemostatic powder added to standard management for oesophagogastric variceal bleeding: a randomised trial
RE: Early application of haemostatic powder added to standard management for oesophagogastric variceal bleeding: a randomised trial Michael Johnston1, Charlotte Cook1,2, Ryan Malcolm Buchanan1,2 1Department of Hepatology, University Hospital Southampton NHS Foundation Trust, Southampton, UK 2Primary Care and Population Sciences, University of Southampton, Southampton, UK Correspondence to Dr Ryan Malcolm Buchanan, Primary Care and Population Sciences, University of Southampton, Southampton...
Hepatitis C bio-behavioural surveys in people who inject drugs-a systematic review of sensitivity to the theoretical assumptions of respondent driven sampling | Harm Reduction Journal | Full Text
Hepatitis C (HCV) infects over 150 million people and alongside other causes of viral hepatitis is a leading cause of death worldwide [1, 2]. New, more effective and better-tolerated treatments for HCV are now widely available; however, the accurate epidemiological data required to guide the logistical and financial planning needed for disease elimination strategies is lacking [3].
Coffee, including caffeinated and decaffeinated coffee, and the risk of hepatocellular carcinoma: a systematic review and dose-response meta-analysis
This is the first meta-analysis to calculate the relative risks (RRs) of hepatocellular carcinoma (HCC) for 1–5 cups of coffee per day, which may be useful in the design of a coffee-based intervention for evaluation in a clinical trial. Coffee is a popular drink in most countries, with approximately 2.25?billion cups consumed daily. 8 It is a complex mixture of biologically active molecules, including caffeine, chlorogenic acid and diterpenes.
Social Media Marketing Aids Online Visibility
by Ryan Buchanan , May 17, 2007 In the real world we turn to colleagues and friends for advice on what products and services to buy; generally trying to avoid the salesperson. Understandably this is why social media is so effective and can facilitate an increase in a marketer's bottom line. No longer do we have to rely only on mass media for our information and advice.
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