Results 31 to 40 of about 4,739,983 (297)

Contrastive sentence representation learning with adaptive false negative cancellation [PDF]

Contrastive sentence representation learning has made great progress thanks to a range of text augmentation strategies and hard negative sampling techniques.
Lingling Xu, Fu Lee Wang, Xu, Lingling, Li, Qing, Weiming Wang, Tao, Xiaohui, Wang, Weiming, Xiaohui Tao, Xie, Haoran, Haoran Xie, Qing Li, Wang, Fu Lee   +11 more
core   +1 more source

Extensive transmission of Mycobacterium tuberculosis from 9 year old child with pulmonary tuberculosis and negative sputum smear [PDF]

, 2008
Patients with pulmonary tuberculosis and either a positive sputum smear or cavitating pulmonary lesions have been considered to be infectious1 as these indicate higher bacterial load accumulating with longer duration of infection. The source of infection
Howard, J., Chalkley, D, McEvoy, M., Paranjothy, S, Bracebridge, S, Paranjothy, S., Lack, K., Eisenhut, M, Abubakar, I, Chalkley, D., Thomas, S., McEvoy, M, Eisenhut, M., Lilley, M., Howard, J, Paranjothy, Shantini, Thomas, S, Lilley, M, Mulla, R, Abubakar, I., Bracebridge, S., Lack, K, Mulla, R.   +22 more
core   +1 more source

Media composition influences yeast one- and two-hybrid results

Biological Procedures Online, 2011
Although yeast two-hybrid experiments are commonly used to identify protein interactions, the frequent occurrence of false negatives and false positives hampers data interpretation.
Gonzalez Kim L, Hsiao Hao-Ching, Merchant Zabeena, Liu Ying, Matthews Kathleen S, Bondos Sarah E   +5 more
doaj   +1 more source

The necessity and appropriate range of the diagnostic “gray zone” of 13C-urea breath test

The Saudi Journal of Gastroenterology, 2022
Background: The 13C-urea breath test (13C-UBT) is preferred for non-invasive detection of Helicobacter pylori (H. pylori); however, its accuracy drops when results fall between 2‰ and 6‰ (called the gray zone).
Zhihao Yin, Shiyu Xiao, Xueli Tian, Ziying Yuan, Liya Zhou   +4 more
doaj   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

FEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar, Xinqi Yan, Lucas F. Jansen Klomp, Stefano Schivo, Janine N. Post   +4 more
wiley   +1 more source

Radiological Findings Increased the Successful of COVID-19 Diagnosis in Hospitalized Patients Suspected of Respiratory Viral Infection but with a Negative First SARS-CoV-2 RT-PCR Result

Diagnostics, 2022
SARS-CoV-2 is the etiological agent of COVID-19 and may evolve from asymptomatic disease to fatal outcomes. Real-time reverse-transcription polymerase chain reaction (RT-PCR) screening is the gold standard to diagnose severe accurate respiratory syndrome
Margarita L Martinez-Fierro, Carolina González-Fuentes, Dagoberto Cid-Guerrero, Samantha González Delgado, Santiago Carrillo-Martínez, Edgar Fernando Gutierrez-Vela, Juan Yadid Calzada-Luévano, Maria R. Rocha-Pizaña, Jacqueline Martínez-Rendón, Maria E. Castañeda-López, Idalia Garza-Veloz   +10 more
doaj   +1 more source

Design and analysis strategies for robust microbiome ageing research

FEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik, İsmail Güderer, Yi Wang, Tayyaba Alvi, Prasoon Pandey, Handan Melike Dönertaş   +5 more
wiley   +1 more source

Microbial keratitis—the false negative [PDF]

Eye, 1991
The investigation of presumed microbial keratitis includes microscopy and culture of corneal specimens obtained by scraping the infiltrated cornea. Routine microscopy fails to identify the infecting organism in about 15% of cases. We discuss the problems presented by 20 such eyes which required further investigation.
L, Ficker, C, Kirkness, A, McCartney, D, Seal   +3 more
openaire   +2 more sources

An epithelial GPR35 isoform supports tumor‐associated transcriptional and metabolic phenotypes

FEBS Letters, EarlyView.
GPR35 generates two functionally distinct isoforms with previously unresolved roles. GPR35‐short mediates immune‐cell chemotaxis, while GPR35‐long is enriched in colorectal cancer epithelium, where it supports increased metabolism, proliferation, and tumor‐associated transcriptional programs.
Jørgen D. Rønneberg, Martine Hjeltnes, Josephine Krieger, Joshua E. Elias, Maria Stensland, Kristian Holm, Xiaojun Jiang, Chuki Khangsar, Tuula A. Nyman, Arthur Kaser, Johannes R. Hov, Tom H. Karlsen, Nicole C. Kaneider, Frode L. Jahnsen, Georg Schneditz   +14 more
wiley   +1 more source

False memory ≠ false memory: DRM errors are unrelated to the misinformation effect [PDF]

, 2013
The DRM method has proved to be a popular and powerful, if controversial, way to study 'false memories'. One reason for the controversy is that the extent to which the DRM effect generalises to other kinds of memory error has been neither satisfactorily ...
Lambert, K., Katie Lambert, Hartmut Blank, Salmon, K., James Ost, Jones, Georgina, Joanna Davies, Ost, James, Davies, J., Georgina Jones, Kelly Salmon, Blank, Hartmut   +11 more
core   +2 more sources