Results 91 to 100 of about 22,856,037 (287)

Development of esophagogastroduodenoscopy in China: results from the national census in 2013 and 2020

open access: yesFrontiers in Oncology
BackgroundGiven the significant burden of upper digestive diseases, there has been a substantial increase in the utilization of esophagogastroduodenoscopy (EGD) in China from 2012 to 2019.
Siwei Zhou   +17 more
doaj   +1 more source

Multi-step validation of a deep learning-based system for the quantification of bowel preparation: a prospective, observational study

open access: yesThe Lancet: Digital Health, 2021
Summary: Background: Inadequate bowel preparation is associated with a decrease in adenoma detection rate (ADR). A deep learning-based bowel preparation assessment system based on the Boston bowel preparation scale (BBPS) has been previously established
Wei Zhou, MD   +24 more
doaj  

Integrating microbial electrochemical technologies with anaerobic digestion to accelerate propionate degradation [PDF]

open access: yesarXiv, 2020
The aim of this study is to evaluate the integration of microbial electrochemical technologies (MET) with anaerobic digestion (AD) to overcome AD limitations caused by propionate accumulation. The study focuses on understanding to what extent the inoculum impacts on the behaviour of the integrated systems (AD-MET) from the perspective of propionate ...
arxiv  

RETRACTED ARTICLE: Long non-coding XIAP-AS1 regulates cell proliferation, invasion and cell cycle in colon cancer

open access: yesArtificial Cells, Nanomedicine, and Biotechnology, 2019
We, the Editors and Publisher of the journal Artificial Cells, Nanomedicine, and Biotechnology, have retracted the following article: Xiaohong Lu, Yuanjie Yu & Shiyun Tan (2019) Long non-coding XIAP-AS1 regulates cell proliferation, invasion and cell ...
Xiaohong Lu, Yuanjie Yu, Shiyun Tan
doaj   +1 more source

Mathematical Model of ingested glucose in Glucose-Insulin Regulation [PDF]

open access: yesarXiv, 2020
Here, we develop a mathematical model for glucose-insulin regulatory system. The model includes a new parameter which is the amount of ingested glucose. Ingested glucose is an external glucose source coming from digested food. We assume that the external glucose or ingested glucose decays exponentially with time.
arxiv  

Authenticated Append-only Skip Lists [PDF]

open access: yesarXiv, 2003
In this work we describe, design and analyze the security of a tamper-evident, append-only data structure for maintaining secure data sequences in a loosely coupled distributed system where individual system components may be mutually distrustful. The resulting data structure, called an Authenticated Append-Only Skip List (AASL), allows its maintainers
arxiv  

Immune cell infiltration as a biomarker for the diagnosis and prognosis of digestive system cancer

open access: yesCancer Science, 2019
The digestive system cancers are aggressive cancers with the highest mortality worldwide. In this study, we undertook a systematic investigation of the tumor immune microenvironment to identify diagnostic and prognostic biomarkers.
Sheng Yang   +4 more
semanticscholar   +1 more source

Clustering of Molecular Alterations in Gastroesophageal Carcinomas

open access: yesNeoplasia: An International Journal for Oncology Research, 2004
Gene expression levels are regulated at many levels. Integration of genome-wide analyses for the study of DNA and RNA provides a unique tool to detect genetic alterations in the cancer genome.
Natalie Koon   +6 more
doaj   +1 more source

Pan-immune inflammation value as a prognostic biomarker for cancer patients treated with immune checkpoint inhibitors

open access: yesFrontiers in Immunology
BackgroundImmune checkpoint inhibitors (ICIs) represent a paradigm shift in the development of cancer therapy. However, the improved efficacy of ICIs remains to be further investigated.
Tianrui Kuang   +11 more
doaj   +1 more source

Design Patterns which Facilitate Message Digest Collision Attacks on Blockchains [PDF]

open access: yesarXiv, 2018
Message digest algorithms are one of the underlying building blocks of blockchain platforms such as Ethereum. This paper analyses situations in which the message digest collision resistance property can be exploited by attackers. Two mitigations for possible attacks are described: longer message digest sizes make attacks more difficult; and, including ...
arxiv  

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