Results 11 to 20 of about 1,737,272 (214)

Negative interference in serum HBsAg ELISA from rheumatoid factors. [PDF]

open access: yesPLoS ONE, 2013
BACKGROUND: RF(Rheumatoid factor) is usually thought to cause positive interference in immunoassay. Recently, our study showed that high-concentration RFs caused negative interference as well as positive interference in serum HBsAg(Hepatitis B surface ...
Lei Xu   +7 more
doaj   +1 more source

Field evaluation of the novel One Step Malaria Pf and Pf/Pv rapid diagnostic tests and the proportion of HRP-2 gene deletion identified on samples collected in the Pwani region, Tanzania

open access: yesBulletin of the National Research Centre, 2023
Background Malaria rapid diagnostic tests (mRDTs) have played an important role in the early detection of clinical malaria in an endemic area. While several mRDTs are currently on the market, the availability of mRDTs with high sensitivity and ...
Zena E. Mwangonela   +10 more
doaj   +1 more source

A Leap from Negative to Positive Bond. A Step towards Project Sustainability

open access: yesAdministrative Sciences, 2019
Departing from the normative formulation of stakeholder theory and building upon the current body of knowledge, this study aims to advance understandings on the benefits and challenges towards a more holistic approach to stakeholder management at the ...
Francesco Di Maddaloni, Roya Derakhshan
doaj   +1 more source

Robust non-negative least mean square algorithm based on step-size scaler against impulsive noise

open access: yesAdvances in Difference Equations, 2020
Conventional non-negative algorithms restrict the weight coefficient vector under non-negativity constraints to satisfy several inherent characteristics of a specific system.
Kuangang Fan   +3 more
doaj   +1 more source

An Enhanced Depth-integrated Model for Flows over a Negative Step with Hydraulic Jump

open access: yesE3S Web of Conferences, 2018
Depth-integrated models play an important role of predicting flows for several practical problems. There are many contributions to develop an enhanced depth-integrated model to have the ability of evaluating vertical flow structures. However, it is still
Uchida Tatsuhiko
doaj   +1 more source

Oral beta-lactam step down in bacteremic E. coli urinary tract infections

open access: yesBMC Infectious Diseases, 2020
Background Literature is scarce regarding oral step down to beta-lactams in bacteremic urinary tract infections. Oral fluoroquinolones are an accepted and common step down for bacteremic urinary tract infections; however, their use is associated with ...
Stephan Saad   +3 more
doaj   +1 more source

A New Design of High Negative Dispersion Optical Fiber with - 951ps/ (nm.km) at 1550nm [PDF]

open access: yesEngineering and Technology Journal, 2011
In this paper, a new design of high negative dispersion optical fiber is introduced.The generalized analysis of multiple-clad cylindrical dielectric structures with step index profiles is presented. The design is focused on quadrature-clad fibers.
Jassim Kadim Hmood, Alaa Hussein Ali
doaj   +1 more source

Intradermal Testing With COVID-19 mRNA Vaccines Predicts Tolerance

open access: yesFrontiers in Allergy, 2022
BackgroundThe newly developed mRNA-based COVID-19 vaccines can provoke anaphylaxis, possibly induced by polyethylene glycol (PEG) contained in the vaccine.
Florian Stehlin   +11 more
doaj   +1 more source

Two-step aggregation of gold nanoparticles based on charge neutralization for detection of melamine by colorimetric and surface-enhanced Raman spectroscopy platform

open access: yesJournal of Dairy Science, 2022
: A colorimetric and surface-enhanced Raman scattering (SERS) signal amplification platform based on 2-step aggregation of gold nanoparticles (AuNP) was constructed for the sensitive detection of melamine. In this study, the positively charged SYBR Green
K.Y. Xing   +5 more
doaj   +1 more source

Carcinomas and Carcinoid Tumors of the Lungs and Bronchi in Children and Adolescents: The EXPeRT Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Primary lung carcinomas and bronchial carcinoid tumors (BC) are very rare malignancies in childhood. While typical BC and mucoepidermoid carcinomas are mostly low‐grade, localized tumors with a more favorable prognosis than in adults, necessitating avoidance of overtreatment, adenocarcinomas of the lung are often diagnosed at advanced disease ...
Michael Abele   +19 more
wiley   +1 more source

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