Article
Gastroenterology & Hepatology
Chih-Hsiang Alexander Chan, Zahra Aghababaie, Niranchan Paskaranandavadivel, Recep Avci, Leo K. Cheng, Timothy R. Angeli-Gordon
Summary: This study identifies temporary dysrhythmic ectopic pacemakers in the distal stomach caused by localized gastric distension. These distension-induced dysrhythmias are interesting physiological phenomena that can inform the design of new interventional and electrophysiological protocols, and contribute to the understanding of stretch-sensitivity in the gut and postprandial physiology.
AMERICAN JOURNAL OF PHYSIOLOGY-GASTROINTESTINAL AND LIVER PHYSIOLOGY
(2021)
Article
Environmental Sciences
Marta Ciazela, Jakub Ciazela, Bartosz Pieterek
Summary: Thermal inertia represents the resistance to temperature change on the surface, and a new analytical method based on ATI has been proposed for thermal mapping, showing the significant influence of slope and aspect on albedo and diurnal temperature differences.
Article
Engineering, Electrical & Electronic
Arushi Arora, Adele N. Zawada, Martin Bernier, Michel J. F. Digonnet
Summary: This article introduces a slow-light fiber-Bragg-grating (FBG) pressure sensor that can be used as both a microphone and a hydrophone. The sensor achieves high resolution by utilizing a narrow slow-light resonance, a soft polymeric coating, and an ultranarrow linewidth laser. With improved resolution, this sensor has potential applications in deep sea and seismic research.
IEEE SENSORS JOURNAL
(2023)
Article
Remote Sensing
Matthew J. McCarthy, Daniel B. Otis, David Hughes, Frank E. Muller-Karger
Summary: Accurate and up-to-date maps of coastal bathymetry are crucial for various applications. This study presents an algorithm utilizing satellite imagery to map the Florida Keys at high resolution without in-situ data collection. The process is fully automated and the resulting bathymetry map is validated against LiDAR-derived data, showing good accuracy.
INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
(2022)
Article
Environmental Sciences
Sanmei Li, Mitchell Goldberg, Satya Kalluri, Daniel T. Lindsey, Bill Sjoberg, Lihang Zhou, Sean Helfrich, David Green, David Borges, Tianshu Yang, Donglian Sun
Summary: The study aims to apply a downscaling model to recent severe coastal flooding events caused by hurricanes using satellite data, to generate high-resolution 3D flood maps for detailed floodwater distribution and clearer visualization of water depth.
Article
Multidisciplinary Sciences
Xining Zhang, Yong Ge, Jin Chen, Feng Ling, Qunming Wang, Delin Du, Ru Xiang
Summary: Super-resolution mapping (SRM) is an important technology in remote sensing. To address the issues of existing models that only focus on spectral features, we propose a soft information-constrained network (SCNet) that leverages soft information as a spatial prior. SCNet generates more complete spatial details in complex areas, providing an effective means for producing high-quality and high-resolution mapping products from remote sensing images.
Article
Neurosciences
Sina L. Mansour, Ye Tian, B. T. Thomas Yeo, Vanessa Cropley, Andrew Zalesky
Summary: This study explores high-resolution connectomes independent of brain parcellation atlas, proposing new methodologies that are computationally feasible and improving neural fingerprinting and behavior prediction. The findings reveal that individual uniqueness in cortical gradients is located in association cortices, with functional connectivity being a more accurate predictor of behavior compared to differentiators of identity, such as cortical curvature.
Article
Multidisciplinary Sciences
Nicola M. Moloney, Konstantin Barylyuk, Eelco Tromer, Oliver M. Crook, Lisa M. Breckels, Kathryn S. Lilley, Ross F. Waller, Paula MacGregor
Summary: This study maps the spatial proteomes of two African trypanosome species, Trypanosoma brucei and Trypanosoma congolense, providing insights into the molecular basis for diversity within and between these pathogen species. Comparative analysis reveals key routes of parasitic adaptation to different biological niches.
NATURE COMMUNICATIONS
(2023)
Article
Environmental Sciences
Sara Innangi, Michele Innangi, Mirko Di Febbraro, Gabriella Di Martino, Marco Sacchi, Renato Tonielli
Summary: This study presents a novel model for obtaining high-resolution seafloor maps using backscatter and bathymetric multibeam system data. The linear regression model achieved accurate predictions of grain size distribution. Despite some limitations, this modeling approach is a flexible tool that provides continuous maps of sediment size.
Article
Gastroenterology & Hepatology
Kiara J. W. Miller, Leo K. Cheng, Timothy R. Angeli-Gordon, Recep Avci, Niranchan Paskaranandavadivel
Summary: Coordinated contractions across the ICJ are crucial for healthy gastrointestinal function, and their regulation is partly dependent on myoelectrical activity. This study quantified the spatiotemporal characteristics of bioelectrical conduction across the ICJ and adjacent regions in anesthetized rabbits. The findings suggest that bidirectional propagation of slow waves plays a role in coordinating motility between the small and large intestines.
AMERICAN JOURNAL OF PHYSIOLOGY-GASTROINTESTINAL AND LIVER PHYSIOLOGY
(2022)
Article
Gastroenterology & Hepatology
Rushikesh Shah, Lucie F. Calderon, Brenna E. Sanders, Grace Mccurdy, Aqsa Nasir, Wei Zheng, Julia Massaad, Mengdan Xie, Hui Luo, Lianyong Li, Baiwen Li, Huimin Chen, Steve Keilin, Alyssa Kransinskas, Qiang Cai
Summary: This study presents a new technique for obtaining gastric muscle samples and quantifying the number of Interstitial Cells of Cajal (ICC) in patients with gastroparesis. The results suggest that the number of ICC may be related to the response to treatment. However, further studies with a larger number of patients are needed to confirm these findings.
DIGESTIVE DISEASES AND SCIENCES
(2022)
Article
Ecology
Miao Liu, Jun Ma, Rui Zhou, Chunlin Li, Dikang Li, Yuanman Hu
Summary: This study established a model to predict the urban floor area in mainland China using remote sensing data, resulting in the generation of the FPFA map. The distribution of floor area was found to be uneven, with higher intensity in the southern urban areas along the coastline compared to the northern regions, and significant disparities among provinces.
LANDSCAPE AND URBAN PLANNING
(2021)
Article
Optics
Cristina Polonschii, Mihaela Gheorghiu, Sorin David, Szilveszter Gaspar, Sorin Melinte, Hassaan Majeed, Mikhail E. Kandel, Gabriel Popescu, Eugen Gheorghiu
Summary: A novel multimodal functional imaging instrument has been developed in this study, enabling high-resolution mapping of optical path differences and electrical impedance variations. By combining phase imaging with electrical modulation, the system can achieve submicron spatial resolution for retrieving electro-optical maps with high spatial and temporal resolutions. This innovative optoelectrochemical method shows promise for a wider range of electrically modulated optical methods in measuring the electric field locally.
LIGHT-SCIENCE & APPLICATIONS
(2021)
Article
Geochemistry & Geophysics
Felipe Queiroz de Almeida, Marwan Younis, Pau Prats-Iraola, Marc Rodriguez-Cassola, Gerhard Krieger, Alberto Moreira
Summary: In this article, a new SAR imaging mode based on multiple elevation beams and PRI variation is introduced for high-resolution wide-swath imaging. This mode efficiently utilizes illumination time and achieves good performance, making it suitable for spaceborne SAR systems.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2021)
Article
Multidisciplinary Sciences
Eun-Yeong Park, Xiran Cai, Josquin Foiret, Hanna Bendjador, Dongwoon Hyun, Brett Z. Fite, Robert Wodnicki, Jeremy J. Dahl, Robert D. Boutin, Katherine W. Ferrara
Summary: Volumetric ultrasound imaging technology allows for operator-independent acquisition and improved field of view. This study demonstrates the implementation of nonlinear processing and distributed beamformation to achieve fast and high-resolution imaging over a large transducer aperture. The technology has wide applications across various areas, including musculoskeletal, liver, breast, and pediatric imaging, as well as image-guided therapy.
Article
Gastroenterology & Hepatology
Xinmin Yang, Ruwen Zhang, Tao Jin, Ping Zhu, Linbo Yao, Lan Li, Wenhao Cai, Rajarshi Mukherjee, Dan Du, Xianghui Fu, Jing Xue, Reynaldo Martina, Tingting Liu, Sayali Pendharkar, Anthony R. Phillips, Vikesh K. Singh, Robert Sutton, John A. Windsor, Lihui Deng, Qing Xia, Wei Huang
Summary: This study identified optimal blood glucose levels to define stress hyperglycemia in non-diabetic and diabetic acute pancreatitis patients and found a significant relationship between stress hyperglycemia and adverse clinical outcomes.
DIGESTIVE DISEASES AND SCIENCES
(2022)
Article
Gastroenterology & Hepatology
Kiara J. W. Miller, Leo K. Cheng, Timothy R. Angeli-Gordon, Recep Avci, Niranchan Paskaranandavadivel
Summary: Coordinated contractions across the ICJ are crucial for healthy gastrointestinal function, and their regulation is partly dependent on myoelectrical activity. This study quantified the spatiotemporal characteristics of bioelectrical conduction across the ICJ and adjacent regions in anesthetized rabbits. The findings suggest that bidirectional propagation of slow waves plays a role in coordinating motility between the small and large intestines.
AMERICAN JOURNAL OF PHYSIOLOGY-GASTROINTESTINAL AND LIVER PHYSIOLOGY
(2022)
Review
Gastroenterology & Hepatology
Nipuni D. Nagahawatte, Leo K. Cheng, Recep Avci, Timothy R. Angeli-Gordon, Niranchan Paskaranandavadivel
Summary: Small intestine pacing has therapeutic potential in treating disorders such as short bowel syndrome and obesity. This systematic review proposes standardized protocols to maximize research outcomes and aims to translate research findings to human clinical validation.
NEUROGASTROENTEROLOGY AND MOTILITY
(2023)
Review
Surgery
Daniel Joh, Mathew Morreau, Angela Lee, Sayali Pendharkar, Bruce Stokes, Roger Warren, Anthony Hickey, Anthony J. Phillips, John A. Windsor
Summary: Acute Mesenteric Ischaemic (AMI) is a rare and serious condition, and current treatments have limitations. This systematic review of experimental studies suggests that intraluminal oxygen delivery may be an effective treatment for AMI, but further research is needed to determine the optimal timing and formulation before clinical translation.
ANZ JOURNAL OF SURGERY
(2023)
Letter
Gastroenterology & Hepatology
Lin Gao, Xiaojia Xiao, Lu Ke, Jiwon Hong, Lisa Brown, Anthony Phillips, John A. Windsor
GASTROINTESTINAL ENDOSCOPY
(2023)
Article
Gastroenterology & Hepatology
Tiago Bouca-Machado, Stefan A. W. Bouwense, Martin Brand, Ihsan Ekin Demir, Jens Brondum Frokjaer, Pramod Garg, Peter Hegyi, J. -Matthias Lohr, Enrique de-Madaria, Soren Schou Olesen, Sanjay Pandanaboyana, Jan Bech Pedersen, Vinciane Rebours, Andrea Sheel, Vikesh Singh, Martin Smith, John A. Windsor, Dhiraj Yadav, Asbjorn Mohr Drewes
Summary: Acute on chronic pancreatitis (ACP) is a common condition, but there are significant gaps in our knowledge about it. Through a systematic review and expert consensus, a new definition of ACP was reached. Despite the poor evidence base, this position statement provides a foundation for the management of ACP.
Article
Gastroenterology & Hepatology
Linqian Li, Xiaoying Zhang, Guilan Cheng, Dingxi Wang, Shiyu Liu, Lan Li, Na Shi, Tao Jin, Ziqi Lin, Lihui Deng, Wei Huang, John A. Windsor, Guixiang Li, Qing Xia
Summary: This study aimed to optimize the technique for measuring intra-bladder pressure in patients with predicted severe acute pancreatitis. The results showed that measuring intra-bladder pressure at the iliac crest with a head of bed elevation of 15 degrees and instilling 25 mL of normal saline can be appropriate for monitoring intra-abdominal pressure in predicted severe acute pancreatitis patients. A bed elevation of 30 degrees significantly increased intra-bladder pressure.
Review
Gastroenterology & Hepatology
Dhya Al-Leswas, Nesta Baxter, Wei B. Lim, Francis Robertson, Bathiya Ratnayake, Jayanta Samanta, Gabriele Capurso, Enrique de-Madaria, Asbjorn M. Drewes, John Windsor, Sanjay Pandanaboyana
Summary: This systematic review and meta-analysis found that epidural anesthesia (EA) is safe and effective in managing pain in acute pancreatitis (AP). EA can reduce pain severity, improve pancreatic perfusion, and decrease mortality in AP patients. The use of EA is associated with lower need for ventilatory support.
Article
Gastroenterology & Hepatology
Wenjian Mao, Kang Li, Jing Zhou, Miao Chen, Bo Ye, Gang Li, Vikesh Singh, James Buxbaum, Xiaoyun Fu, Zhihui Tong, Yuxiu Liu, John Windsor, Weiqin Li, Lu Ke, CAPCTG
Summary: This study aimed to assess the performance of the Pancreatitis Activity Scoring System (PASS) and its modifications in predicting infected pancreatic necrosis (IPN) in patients with acute necrotizing pancreatitis. The mPASS-4 model had the best predictive performance and simplified the original PASS, increasing the likelihood of clinical implementation.
UNITED EUROPEAN GASTROENTEROLOGY JOURNAL
(2023)
Article
Pharmacology & Pharmacy
Johanes K. Kasim, Jiwon Hong, Anthony J. R. Hickey, Anthony R. J. Phillips, John A. Windsor, Paul W. R. Harris, Margaret A. Brimble, Iman Kavianinia
Summary: Pancreatic ductal adenocarcinoma is a debilitating disease with no effective treatments. Trichoderin A, a natural product, shows promise as an anticancer agent. It selectively kills pancreatic cancer cells under glucose deprivation, which is significant given the nutrient-deprived nature of the disease.
Article
Gastroenterology & Hepatology
Nipuni D. Nagahawatte, Recep Avci, Niranchan Paskaranandavadivel, Timothy R. Angeli-Gordon, Leo K. Cheng
Summary: The study presents a high-resolution framework for simultaneous pacing and response mapping of the small intestine. A novel surface-contact electrode array was developed and applied in vivo on pigs, achieving successful pacing and mapping of the pacing response. The study identified effective pacing parameters for slow-wave entrainment in the jejunum and showed no tissue damage from the pacing.
AMERICAN JOURNAL OF PHYSIOLOGY-GASTROINTESTINAL AND LIVER PHYSIOLOGY
(2023)
Article
Engineering, Biomedical
Chad E. Drake, Leo K. Cheng, Niranchan Paskaranandavadivel, Saeed Alighaleh, Timothy R. Angeli-Gordon, Peng Du, Leonard A. Bradshaw, Recep Avci
Summary: Bioelectric slow waves regulate gastrointestinal motility, and disordered activity is linked to motility disorders. A method for reconstructing 3D stomach geometry from coil localization was developed and validated using anatomically realistic models and in-vivo pig studies. The proposed method could enable investigation of novel analysis techniques.
IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING
(2023)
Article
Biology
Chad E. Drake, Leo K. Cheng, Nicole D. Muszynski, Suseela Somarajan, Niranchan Paskaranandavadivel, Timothy R. Angeli-Gordon, Peng Du, Leonard A. Bradshaw, Recep Avci
Summary: This article introduces a novel method for measuring gastric motility using bioelectric slow waves and biomagnetic slow waves. The feasibility of the method was verified by conducting experiments on two anesthetized pigs, which showed that the method enables quantitative spatial co-registration of gastric activity and analysis based on anatomical structures.
COMPUTERS IN BIOLOGY AND MEDICINE
(2023)
Article
Gastroenterology & Hepatology
Ashton Matthee, Zahra Aghababaie, Sam Simmonds, Jarrah M. Dowrick, Linley A. Nisbet, Gregory B. Sands, Timothy R. Angeli-Gordon
Summary: Power-controlled, irrigated radio-frequency ablation is effective in creating larger and deeper lesions on the serosal surface of the stomach at reduced temperatures compared to temperature-controlled ablation.
DIGESTIVE DISEASES AND SCIENCES
(2023)
Article
Gastroenterology & Hepatology
Jarrah M. Dowrick, Lisa Jungbauer Nikolas, Sarah J. Offutt, Peter Tremain, Jonathan C. Erickson, Timothy R. Angeli-Gordon
Summary: Existing cardiac monitors may provide an efficient solution for long-term monitoring of gastric slow waves. A study was carried out using an existing implantable cardiac monitor (Reveal LINQ) placed next to a validated extracellular electrical recording device (FPC array) on the serosal surface of a pig stomach. The recorded signals from these devices were compared and found to have comparable periods and signal-to-noise ratios.
NEUROGASTROENTEROLOGY AND MOTILITY
(2023)