Article
Health Care Sciences & Services
Tsheten Tsheten, Kefyalew Addis Alene, Angela Cadavid Restrepo, Matthew Kelly, Colleen Lau, Archie C. A. Clements, Darren J. Gray, Chona Daga, Vanessa Joy Mapalo, Fe Esperanza Espino, Kinley Wangdi
Summary: The study in the Philippines identified sociodemographic and environmental factors driving soil-transmitted helminth (STH) transmission, predicting high-risk areas in the country. Higher prevalence of Ascaris lumbricoides and Trichuris trichiura was found in Visayas Island, while hookworm prevalence was highest in Mindanao Island. Male gender, temperature, and rainfall were associated with increased STH risk, while normalized difference vegetation index and soil pH were negatively correlated with transmission. The identified high-risk areas can be targeted for deworming and health education activities to reduce the burden of STH infections.
LANCET REGIONAL HEALTH-WESTERN PACIFIC
(2024)
Article
Geochemistry & Geophysics
Wenyuan Li, Keyan Chen, Hao Chen, Zhenwei Shi
Summary: The paper introduces a geographical knowledge-driven representation learning method for remote sensing images, improving network performance and reducing the need for annotated data. By using global land cover products and geographical location as supervision, an efficient pretraining framework is proposed to eliminate supervision noises.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2022)
Article
Parasitology
Humphrey D. Mazigo, Maria M. Zinga, Stella Kepha, Elodie Yard, Kevin McRee-Mckee, George Kabona, Deogratias D. Ngoma, Andreas Nshala
Summary: The study conducted a survey on soil-transmitted helminthiasis and schistosomiasis in 29 districts of north-western Tanzania, with overall low prevalences observed. Males had a higher prevalence rate, and most children infected with soil-transmitted helminths had light to moderate intensity of infection. The overall prevalence of co-infection with soil-transmitted helminths and schistosomiasis was 19.1%.
PARASITES & VECTORS
(2022)
Article
Geochemistry & Geophysics
Wenyuan Li, Keyan Chen, Zhenwei Shi
Summary: A geographical supervision correction (GeCo) method is proposed for remote sensing representation learning, which adapts to correct deviated geographical supervision generated by GLC products using a correction matrix during network pretraining. Prior knowledge is identified to guide representation learning and restrict the correction process, with corresponding regularization terms proposed to prevent abrupt changes and excessive smoothing of network outputs. Experimental results demonstrate that the method outperforms random initialization, ImageNet pretraining, and other representation learning methods, and can eliminate the influence of deviations to improve the effect of representation learning.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2022)
Article
Computer Science, Artificial Intelligence
Jose F. Aldana-Martin, Jose Garcia-Nieto, Maria del Mar Roldan-Garcia, Jose F. Aldana-Montes
Summary: Remote sensing technology provides a technological framework for advanced applications in various fields, with Earth Observation becoming increasingly important. Knowledge-driven approaches remain a challenge in remote sensing, with semantic technologies showing high success in knowledge representation in the Earth Observation domain.
EXPERT SYSTEMS WITH APPLICATIONS
(2022)
Article
Biochemical Research Methods
Jacob Williams, Shuangshuang Xu, Marco A. R. Ferreira
Summary: In this study, a novel Bayesian variable selection method based on nonlocal priors is proposed for genome-wide association studies. The method, called BGWAS, effectively reduces false positive rates while maintaining the ability to detect true positive SNPs. It achieves this through a two-step process of screening and model selection.
BMC BIOINFORMATICS
(2023)
Article
Neurosciences
Amirhossein Jafarian, Peter Zeidman, Rob C. Wykes, Matthew Walker, Karl J. Friston
Summary: Adiabatic dynamic causal modelling is a method for inferring slow changes in biophysical parameters controlling fast neuronal fluctuations. It relies on established neural mass models and an adiabatic approximation to summarize fast neuronal states using second order statistics. The method introduces a circular causality involving synaptic parameters and neuronal activity, and is validated through simulations and an illustrative application to seizure activity in an animal model.
Article
Environmental Sciences
Mingxian Zhao, Yingying Dong, Wenjiang Huang, Chao Ruan, Jing Guo
Summary: Research shows that using geographical detectors for feature selection can improve the accuracy and stability of wheat stripe rust monitoring. The selected feature set provides support for regional stripe rust detection and accurate prevention.
Article
Mathematics, Interdisciplinary Applications
Jin Wang, Yunbo Ouyang, Yuan Ji, Feng Liang
Summary: In this study, we explore the Bayesian approach to variable selection in linear regression models. We propose an efficient EM algorithm that returns the MAP estimator of the relevant variables set. The algorithm avoids the need for inverting large matrices in each iteration, making it scalable for big data. Additionally, we introduce an ensemble EM algorithm to address the issue of local modes and achieve better variable selection results. Empirical studies have shown the superior performance of the ensemble EM algorithm.
Article
Environmental Sciences
Ahsen Maqsoom, Bilal Aslam, Nauman Khalid, Fahim Ullah, Hubert Anysz, Abdulrazak H. Almaliki, Abdulrhman A. Almaliki, Enas E. Hussein
Summary: This study utilizes remote sensing and GIS to identify potential groundwater recharge zones in Islamabad, providing valuable data for the protection and extraction of groundwater, and contributing to the development of effective strategies.
Article
Environmental Sciences
Haiyi Ma, Changkun Wang, Jie Liu, Xinyi Wang, Fangfang Zhang, Ziran Yuan, Chengshuo Yao, Xianzhang Pan
Summary: A framework for high-accuracy SOM retrieval by coupling multi-temporal remote sensing (RS) images and variable selection algorithms was proposed in Baoqing County, a grain production area in the Sanjiang Plain of China. The results showed that the combination of variable selection algorithms and PLSR outperformed using PLSR alone, with CARS algorithm showing the best performance among all the algorithms. The study suggested that the proposed framework has potential for SOM retrieval.
Article
Statistics & Probability
Jia Wang, Xizhen Cai, Xiaoyue Niu, Runze Li
Summary: This article introduces a class of network models where the likelihood of connection is influenced by high-dimensional nodal covariates and node-specific popularity. A Bayesian method is proposed for feature selection, with implementation via Gibbs sampling. To address computational challenges in large sparse networks, a working model is developed for parameter updates based on dense sub-graphs. Model selection consistency is proven for both models, even when dimension grows exponentially. Monte Carlo studies and real world examples illustrate the performance of the proposed models and estimation procedures. Supplementary materials are available online.
JOURNAL OF THE AMERICAN STATISTICAL ASSOCIATION
(2023)
Article
Environmental Sciences
Md Ataullah Raza Khan, Shaktiman Singh, Pratima Pandey, Anshuman Bhardwaj, Sheikh Nawaz Ali, Vasudha Chaturvedi, Prashant Kumar Champati Ray
Summary: This study quantified the distribution of permafrost in the Western Himalaya using multisource satellite datasets, revealing a large portion of barren land and majority of the area with a mean annual air temperature below 1 degree Celsius. The research also showed high interannual variability in permafrost distribution and a significant decrease in permafrost cover from 2002 to 2020.
Article
Environmental Sciences
Sofia M. G. Rocha, Ernesto Molinas, Italo S. Rodrigues, Iran E. Lima Neto
Summary: This study assessed the spatio-temporal variability of evaporation rates on the water surface of Pentecoste reservoir in the Brazilian semiarid region using both the Delft3D model and remote sensing technique. The results showed that the Delft3D model accurately reproduced the water level variability and thermal structure of the reservoir. The study's innovative approach can help optimize the location of evaporation structures and improve water availability.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Nutrition & Dietetics
Nicola Pesenti, Piero Quatto, Elena Colicino, Raffaella Cancello, Massimo Scacchi, Antonella Zambon
Summary: The study compares the performance of three supervised Bayesian variable selection methods in detecting important predictors in high-dimensional data. It provides practical guidelines for their use and identifies when one model should be preferred over the others. The results show that BKMR outperforms other models with small datasets, BSR performs comparably to BKMR with large datasets, and BLASSO should be used when there are no synergies between predictors and there is a monotonous predictor-outcome relationship. The models were also applied to a real case study on obesity in hospitalized women.
FRONTIERS IN NUTRITION
(2023)
Article
Medicine, General & Internal
Frederique Chammartin, Sara Lodi, Roger Logan, Lene Ryom, Amanda Mocroft, Ole Kirk, Antonella d'Arminio Monforte, Peter Reiss, Andrew Phillips, Wafaa El-Sadr, Camilla Hatleberg, Christian Pradier, Fabrice Bonnet, Matthew Law, Stephane De Wit, Caroline Sabin, Jens D. Lundgren, Heiner C. Bucher
Summary: Immediate initiation of antiretroviral therapy (ART) has small effects on the long-term risk for cancer in a cohort of young HIV-positive persons, with further data needed for non-AIDS-defining cancer risk.
ANNALS OF INTERNAL MEDICINE
(2021)
Article
Immunology
Marie Ballif, Benedikt Christ, Nanina Anderegg, Frederique Chammartin, Josephine Muhairwe, Laura Jefferys, Jonas Hector, Janneke van Dijk, Michael J. Vinikoor, Monique van Lettow, Cleophas Chimbetete, Sam J. Phiri, Dorina Onoya, Matthew P. Fox, Matthias Egger
Summary: This study examines the outcomes of HIV patients lost to follow-up and highlights the need for better medical record systems and rapid tracing of lost-to-follow-up patients.
CLINICAL INFECTIOUS DISEASES
(2022)
Article
Public, Environmental & Occupational Health
Eric Remera, Frederique Chammartin, Sabin Nsanzimana, Jamie Ian Forrest, Gerald E. Smith, Placidie Mugwaneza, Samuel S. Malamba, Muhammed Semakula, Jeanine U. Condo, Nathan Ford, David J. Riedel, Marie Paul Nisingizwe, Agnes Binagwaho, Edward J. Mills, Heiner Bucher
Summary: The study found that in 2005, children born to mothers with HIV had higher mortality rates compared to children born to HIV negative mothers, but by 2015, there was a significant reduction in mortality rates for both groups. Maternal HIV infection was identified as an independent predictor of higher child mortality, while higher maternal education was associated with lower child mortality.
Article
Immunology
Eric Remera, Sabin Nsanzimana, Frederique Chammartin, Muhammed Semakula, Gallican N. Rwibasira, Samuel S. Malamba, David J. Riedel, Elysee Tuyishime, Jeanine U. Condo, Patrick Ndimubanzi, Beata Sangwayire, Jamie Forrest, Sara L. Cantoreggi, Edward J. Mills, Heiner C. Bucher
Summary: Voluntary assisted partner notification (VAPN) services using contract, provider, or dual referral modalities have comparable effectiveness in identifying undiagnosed HIV infections. Male individuals and newly diagnosed index cases are more likely to have partners with HIV. HIV-positive yield from index testing is higher than the national average and should be scaled up.
JAIDS-JOURNAL OF ACQUIRED IMMUNE DEFICIENCY SYNDROMES
(2022)
Article
Multidisciplinary Sciences
Nadine Tschumi, Malebanye Lerotholi, Mathebe Kopo, Mpho Kao, Blaise Lukau, Bienvenu Nsakala, Ntoiseng Chejane, Lipontso Motaboli, Tristan Lee, Ruanne Barnabas, Adrienne E. Shapiro, Alastair Van Heerden, Thabo I. Lejone, Alain Amstutz, Jennifer A. Brown, Jesse Heitner, Jennifer M. Belus, Frederique Chammartin, Niklaus D. Labhardt
Summary: This article introduces the importance of differentiated service delivery models for providing high-quality care to HIV patients in resource-limited settings. By implementing the VITAL model and reallocating resources to those in need, it aims to improve care quality and cost-effectiveness.
Article
Immunology
Frederique Chammartin, Katharina Kusejko, Chloe Pasin, Alexandra Trkola, Matthias Briel, Patrizia Amico, Marcel P. Stoekle, Anna L. Eichenberger, Barbara Hasse, Dominique L. Braun, Mace M. Schuurmans, Thomas F. Mueller, Michael Tamm, Nicolas J. Mueller, Andri Rauch, Michael T. Koller, Huldrych F. Guenthard, Heiner C. Bucher, Benjamin Speich, Irene A. Abela
Summary: Determinants of SARS-CoV-2 mRNA vaccine antibody response in people with HIV were identified. The antibody response was higher in people with HIV under the age of 60, with a CD4(+) cell count greater than 350 cells/mu l, and vaccinated with Moderna's mRNA-1273 compared to Pfizer-BioNTech's BNT162b2. Prior infection with SARS-CoV-2 boosted the antibody response, while smokers had a lower overall antibody response. Elderly people with HIV and those with a low CD4(+) cell count should be prioritized for booster vaccinations.
Article
Infectious Diseases
Katharina Kusejko, Frederique Chammartin, Daniel Smith, Marc Odermatt, Julian Schuhmacher, Michael Koller, Huldrych F. Guenthard, Matthias Briel, Heiner C. Bucher, Benjamin Speich
Summary: This study developed a trial platform based on two established national cohort studies, allowing for fast implementation of clinical trials for new treatments and preventive interventions for COVID-19.
BMC INFECTIOUS DISEASES
(2022)
Article
Oncology
Alina A. Ghazaleh, Tristan M. Handschin, Julia Buckowiecki, Frederique S. Chammartin, Christoph Andree, Dirk J. Schaefer, Martin Haug, Elisabeth A. Kappos, Katrin Seidenstuecker
Summary: The study suggests that a one-stage combination of VLNT with WAL for treating chronic BCRL leads to significant outcomes with longer surgery time but fewer complications, and no significant difference in patient satisfaction.
BREAST CANCER RESEARCH AND TREATMENT
(2023)
Article
Immunology
Frederique Chammartin, Katharine Darling, Irene A. Abela, Manuel Battegay, Hansjakob Furrer, Alexandra Calmy, Enos Bernasconi, Patrick Schmid, Matthias Hoffmann, Heiner C. Bucher
Summary: This study examined the association between CD4:CD8 ratio and the risk of coronary heart disease (CHD) and stroke in HIV-positive individuals on antiretroviral therapy. The results suggest that CD4, CD8, and CD4:CD8 ratio are not associated with CHD risk, but a high CD8 cell count may increase the risk of stroke.
JAIDS-JOURNAL OF ACQUIRED IMMUNE DEFICIENCY SYNDROMES
(2022)
Article
Immunology
Benedikt Christ, Janneke H. van Dijk, Talent Y. Nyandoro, Martina L. Reichmuth, Cordelia Kunzekwenyika, Frederique Chammartin, Matthias Egger, Alison Wringe, Marie Ballif
Summary: This study examined the implementation, experiences, and perceptions of differentiated antiretroviral therapy (ART) delivery in rural Zimbabwe. The findings showed that differentiated ART delivery models were widely available in the rural setting, but most facilities did not offer a choice of models. Fast-track refill was perceived as the preferred model by clients, while group- and community-based refill models were associated with involuntary disclosure of HIV status.
JOURNAL OF THE INTERNATIONAL AIDS SOCIETY
(2022)
Article
Anesthesiology
Giovanna A. Lurati Buse, Eckhard Mauermann, Daniela Ionescu, Wojciech Szczeklik, Stefan De Hert, Miodrag Filipovic, Beatrice Beck-Schimmer, Savino Spadaro, Purificacion Matute, Daniel Bolliger, Sanem Cakar Turhan, Judith van Waes, Filipa Lagarto, Kassiani Theodoraki, Anil Gupta, Hans-Joerg Gillmann, Luca Guzzetti, Katarzyna Kotfis, Hinnerk Wulf, Jan Larmann, Dan Corneci, Frederique Chammartin-Basnet, Simon J. Howell
Summary: This study aimed to investigate the predictive value of self-reported functional capacity for major adverse cardiovascular events (MACEs) after noncardiac surgery. The results showed that self-reported functional capacity was associated with MACEs, but did not improve the accuracy of prediction.
BRITISH JOURNAL OF ANAESTHESIA
(2023)
Article
Medicine, Research & Experimental
Felix Gerber, Ravi Gupta, Thabo Ishmael Lejone, Thesar Tahirsylaj, Tristan Lee, Maurus Kohler, Maria Ines Haldemann, Fabian Raeber, Mamakhala Chitja, Molulela Manthabiseng, Makhebe Khomolishoele, Mota Mota, Matumaole Bane, Pauline Mamorontsane Sematle, Retselisitsoe Makabateng, Madavida Mphunyane, Sejojo Phaaroe, Dave Basler, Kevin Kindler, Eleonora Seelig, Matthias Briel, Frederique Chammartin, Niklaus Daniel Labhardt, Alain Amstutz
Summary: This study aims to assess the effectiveness of a VHW-led, CDSS-assisted T2D care model in rural Lesotho. It is a cluster-randomized trial nested within the Community-Based Chronic Disease Care Lesotho (ComBaCaL) cohort study, aiming to provide evidence on the effectiveness of such a T2D care model in low- and middle-income countries.
Article
Public, Environmental & Occupational Health
Lucia Gonzalez Fernandez, Emmanuel Firima, Ravi Gupta, Mamoronts'ane Pauline Sematle, Makhebe Khomolishoele, Manthabiseng Molulela, Matumaole Bane, Raphaela Meli, Mosa Tlahani, Tristan Lee, Frederique Chammartin, Felix Geber, Thabo Ishmael Lejone, Irene Ayakaka, Maja Weisser, Alain Amstutz, Niklaus Daniel Labhardt
Summary: This study assessed the prevalence of cardiovascular risk factors (CVDRFs) and their determinants in Lesotho. The results showed that overweight, diabetes, elevated blood pressure, and tobacco use were prevalent among the participants. Among individuals with CVDRFs, women were more likely to have multiple risk factors.
INTERNATIONAL HEALTH
(2023)
Article
Public, Environmental & Occupational Health
Emmanuel Firima, Lucia Gonzalez, Moazziz Ali Khan, Molulela Manthabiseng, Mamoronts'sane P. Sematle, Matumaole Bane, Makhebe Khomolishoele, Ikhetheleng Leisa, Lefokotsane Retselisitsoe, Thilo Burkard, Eleonara Seelig, Tristan Lee, Frederique Chammartin, Ravi Gupta, Bailah Leigh, Maja Weisser, Alain Amstutz, Niklaus Daniel Labhardt
Summary: The prevalence of target organ damage is high among adults with elevated blood pressure and/or diabetes mellitus in a community setting. Regular prevention and screening activities are important in this population.
JOURNAL OF EPIDEMIOLOGY AND GLOBAL HEALTH
(2023)
Meeting Abstract
Orthopedics
A. Muendermann, C. Nueesch, F. Chammartin, S. Herger, G. Pagenstert, A. -M. Liphard, C. Egloff
OSTEOARTHRITIS AND CARTILAGE
(2022)