Results 41 to 50 of about 2,426,974 (209)

ORT observations of the damped Lyman alpha system towards PKS 0201+113

open access: yes, 1997
We report a deep radio search with the Ooty Radio Telescope (ORT) for the redshifted 21 cm absorption line from the damped Lyman alpha system seen at redshift 3.388 against the quasar PKS 0201+113.
Chengalur, Jayaram N, Kanekar, Nissim
core   +1 more source

On the Determination of Uncertainty and Limit of Detection in Label-Free Biosensors

open access: yesSensors, 2018
A significant amount of noteworthy articles reviewing different label-free biosensors are being published in the last years. Most of the times, the comparison among the different biosensors is limited by the procedure used of calculating the limit of ...
Álvaro Lavín   +8 more
doaj   +1 more source

A Fiber Bragg Grating Sensor Based on Cladding Mode Resonance for Label-Free Biosensing

open access: yesBiosensors, 2023
A fiber-optic biosensing platform based on ultra-narrowband cladding mode resonances was developed on a high-reflectivity fiber Bragg grating (FBG) for targeting biomolecular detection.
Shimeng Chen   +6 more
doaj   +1 more source

Tungsten Disulfide Nanotube-Modified Conductive Paper-Based Chemiresistive Sensor for the Application in Volatile Organic Compounds’ Detection

open access: yesSensors, 2021
Toxic and nontoxic volatile organic compound (VOC) gases are emitted into the atmosphere from certain solids and liquids as a consequence of wastage and some common daily activities.
Song-Jeng Huang   +7 more
doaj   +1 more source

Quantum Limits of Covert Target Detection

open access: yesPhysical Review Letters
20 pages, 5 ...
Guo Yao Tham, Ranjith Nair, Mile Gu
openaire   +4 more sources

Advances in nanoprobes‐based immunoassays

open access: yesBMEMat
Immunoassay is a powerful technique that uses highly specific antigen‐antibody interactions to detect biochemical targets such as proteins and toxins. As a diagnostic tool, immunoassay is employed in the screening, diagnosis, and prognosis of diseases ...
Lusi Zhang   +4 more
doaj   +1 more source

Real-time reverse transcription recombinase polymerase amplification for rapid detection of murine hepatitis virus

open access: yesFrontiers in Microbiology, 2022
Murine hepatitis virus (MHV) is a highly infectious murine coronavirus that has a high potential for causing harm to host animals. This study aimed to develop a real-time reverse transcription recombinase polymerase amplification (RT-RPA) method for ...
Xiao Wang   +6 more
doaj   +1 more source

Narrow scope for resolution-limit-free community detection

open access: yes, 2011
Detecting communities in large networks has drawn much attention over the years. While modularity remains one of the more popular methods of community detection, the so-called resolution limit remains a significant drawback.
M. A. Porter   +3 more
core   +1 more source

Limit theorems for bifurcating Markov chains. Application to the detection of cellular aging [PDF]

open access: yes, 2006
We propose a general method to study dependent data in a binary tree, where an individual in one generation gives rise to two different offspring, one of type 0 and one of type 1, in the next generation.
Guyon, Julien
core   +1 more source

Toward Accurate and Robust Environmental Surveillance Using Metagenomics

open access: yesFrontiers in Genetics, 2021
Environmental surveillance is a critical tool for combatting public health threats represented by the global COVID-19 pandemic and the continuous increase of antibiotic resistance in pathogens.
Jiaxian Shen   +4 more
doaj   +1 more source

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