2,448 research outputs found
JANA: Jointly Amortized Neural Approximation of Complex Bayesian Models
This work proposes ''jointly amortized neural approximation'' (JANA) of
intractable likelihood functions and posterior densities arising in Bayesian
surrogate modeling and simulation-based inference. We train three complementary
networks in an end-to-end fashion: 1) a summary network to compress individual
data points, sets, or time series into informative embedding vectors; 2) a
posterior network to learn an amortized approximate posterior; and 3) a
likelihood network to learn an amortized approximate likelihood. Their
interaction opens a new route to amortized marginal likelihood and posterior
predictive estimation -- two important ingredients of Bayesian workflows that
are often too expensive for standard methods. We benchmark the fidelity of JANA
on a variety of simulation models against state-of-the-art Bayesian methods and
propose a powerful and interpretable diagnostic for joint calibration. In
addition, we investigate the ability of recurrent likelihood networks to
emulate complex time series models without resorting to hand-crafted summary
statistics
The Synthesis and Characterization of Gadolinium Alginate Spheres and Potential Uses as a Contrast-Enhancing Anti-Cancer Material
https://openworks.mdanderson.org/sumexp23/1032/thumbnail.jp
Radiopaque Nanoparticle and Dipyridamole-loaded Electrospun Polymeric Scaffold as Bioresorbable Drug-Eluting Vascular Graft
https://openworks.mdanderson.org/sumexp22/1080/thumbnail.jp
Fabrication of radiopaque, drug loaded resorbable inferior vena cava filters
https://openworks.mdanderson.org/sumexp23/1073/thumbnail.jp
Pre-operative portal vein ligation and MSC injection in a rat model
https://openworks.mdanderson.org/sumexp23/1047/thumbnail.jp
Tungsten nanoparticle and polymer blends as novel coating for radiopaque resorbable inferior vena cava filter
https://openworks.mdanderson.org/sumexp22/1148/thumbnail.jp
Electrospun Bioresorbable Polymer Blends as Vascular Grafts
https://openworks.mdanderson.org/sumexp23/1089/thumbnail.jp
COVID19 Disease Map, a computational knowledge repository of virus-host interaction mechanisms.
Funder: Bundesministerium für Bildung und ForschungFunder: Bundesministerium für Bildung und Forschung (BMBF)We need to effectively combine the knowledge from surging literature with complex datasets to propose mechanistic models of SARS-CoV-2 infection, improving data interpretation and predicting key targets of intervention. Here, we describe a large-scale community effort to build an open access, interoperable and computable repository of COVID-19 molecular mechanisms. The COVID-19 Disease Map (C19DMap) is a graphical, interactive representation of disease-relevant molecular mechanisms linking many knowledge sources. Notably, it is a computational resource for graph-based analyses and disease modelling. To this end, we established a framework of tools, platforms and guidelines necessary for a multifaceted community of biocurators, domain experts, bioinformaticians and computational biologists. The diagrams of the C19DMap, curated from the literature, are integrated with relevant interaction and text mining databases. We demonstrate the application of network analysis and modelling approaches by concrete examples to highlight new testable hypotheses. This framework helps to find signatures of SARS-CoV-2 predisposition, treatment response or prioritisation of drug candidates. Such an approach may help deal with new waves of COVID-19 or similar pandemics in the long-term perspective
ACC/AHA 2005 Guideline Update for the Diagnosis and Management of Chronic Heart Failure in the Adult: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Writing Committee to Update the 2001 Guidelines for the Evaluation and Management of Heart Failure)
"The committee elected to focus this document on the prevention of HF and on the diagnosis and management of chronic HF in the adult patient with normal or low LVEF. It specifically did not consider acute HF, which might merit a separate set of guidelines and is addressed in part in the ACC/AHA Guidelines for the Management of Patients With ST-Elevation Myocardial Infarction (8) and the ACC/AHA 2003 Update of the Guidelines for the Management of Unstable Angina and Non-ST Elevation Myocardial Infarction (9). We have also excluded HF in children, both because the underlying causes of HF in children differ from those in adults and because none of the controlled trials of treatments for HF have included children. We have not considered the management of HF due to primary valvular disease [see ACC/AHA Guidelines on the Management of Patients With Valvular Heart Disease (10)] or congenital malformations, and we have not included recommendations for the treatment of specific myocardial disorders (e.g., hemochromatosis, sarcoidosis, or amyloidosis). These practice guidelines are intended to assist healthcare providers in clinical decision making by describing a range of generally acceptable approaches for the prevention, diagnosis, and management of HF. The guidelines attempt to define practices that meet the needs of most patients under most circumstances. However, the ultimate judgment regarding the care of a particular patient must be made by the healthcare provider in light of all of the circumstances that are relevant to that patient. These guidelines do not address cost-effectiveness from a societal perspective. The guidelines are not meant to assist policy makers faced with the necessity to make decisions regarding the allocation of finite healthcare resources. In fact, these guidelines assume no resource limitation. They do not provide policy makers with sufficient information to be able to choose wisely between options for resource allocation. The various therapeutic strategies described in this document can be viewed as a checklist to be considered for each patient in an attempt to individualize treatment for an evolving disease process. Every patient is unique, not only in terms of his or her cause and course of HF, but also in terms of his or her personal and cultural approach to the disease. Guidelines can only provide an outline for evidence-based decisions or recommendations for individual care; these guidelines are meant to provide that outline.
ACC/AHA 2005 Guideline Update for the Diagnosis and Management of Chronic Heart Failure in the Adult: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Writing Committee to Update the 2001 Guidelines for the Evaluation and Management of Heart Failure)
"The committee elected to focus this document on the prevention of HF and on the diagnosis and management of chronic HF in the adult patient with normal or low LVEF. It specifically did not consider acute HF, which might merit a separate set of guidelines and is addressed in part in the ACC/AHA Guidelines for the Management of Patients With ST-Elevation Myocardial Infarction (8) and the ACC/AHA 2003 Update of the Guidelines for the Management of Unstable Angina and Non-ST Elevation Myocardial Infarction (9). We have also excluded HF in children, both because the underlying causes of HF in children differ from those in adults and because none of the controlled trials of treatments for HF have included children. We have not considered the management of HF due to primary valvular disease [see ACC/AHA Guidelines on the Management of Patients With Valvular Heart Disease (10)] or congenital malformations, and we have not included recommendations for the treatment of specific myocardial disorders (e.g., hemochromatosis, sarcoidosis, or amyloidosis). These practice guidelines are intended to assist healthcare providers in clinical decision making by describing a range of generally acceptable approaches for the prevention, diagnosis, and management of HF. The guidelines attempt to define practices that meet the needs of most patients under most circumstances. However, the ultimate judgment regarding the care of a particular patient must be made by the healthcare provider in light of all of the circumstances that are relevant to that patient. These guidelines do not address cost-effectiveness from a societal perspective. The guidelines are not meant to assist policy makers faced with the necessity to make decisions regarding the allocation of finite healthcare resources. In fact, these guidelines assume no resource limitation. They do not provide policy makers with sufficient information to be able to choose wisely between options for resource allocation. The various therapeutic strategies described in this document can be viewed as a checklist to be considered for each patient in an attempt to individualize treatment for an evolving disease process. Every patient is unique, not only in terms of his or her cause and course of HF, but also in terms of his or her personal and cultural approach to the disease. Guidelines can only provide an outline for evidence-based decisions or recommendations for individual care; these guidelines are meant to provide that outline.
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