Results 61 to 70 of about 1,907 (170)

Quantum fields, cosmological constant and symmetry doubling

open access: yes, 2007
Energy-parity has been introduced by Kaplan and Sundrum as a protective symmetry that suppresses matter contributions to the cosmological constant [KS05]. It is shown here that this symmetry, schematically Energy --> - Energy, arises in the Hilbert space
A. D. Linde   +43 more
core   +1 more source

An efficient quantum circuit analyser on qubits and qudits

open access: yes, 2012
This paper presents a highly efficient decomposition scheme and its associated Mathematica notebook for the analysis of complicated quantum circuits comprised of single/multiple qubit and qudit quantum gates.
Al-Rabadi   +15 more
core   +1 more source

First evaluation of the performance of portable IGRA, QIAreach® QuantiFERON®-TB in intermediate TB incidence setting.

open access: yesPLoS ONE, 2023
Diagnosis and treatment of tuberculosis infection (TBI) are the core elements of tuberculosis elimination. Interferon gamma release assays have advantages over the tuberculin skin test, although their implementation in low-resource settings is ...
Zirwatul Adilah Aziz   +3 more
doaj   +1 more source

Screening of Latent Pulmonary Tuberculosis Infection in Kurdistan Regional-Iraq Using QuantiFERON-TB Gold Plus Technique [PDF]

open access: yes, 2022
Background and Objective: Pulmonary tuberculosis (PTB) is a serious disease that mainly affects the lungs. The aim of this study was a screening of latent pulmonary tuberculosis (LTBI) in Kurdistan Regional-Iraq, using QuantiFERON-TB Gold Plus technique (
Al-khatony, Y. J. (Yaser)   +2 more
core  

Conceptual unification of elementary particles, black holes, quantum de Sitter and Anti de Sitter string states

open access: yes, 2003
We provide a conceptual unified description of the quantum properties of black holes (BH), elementary particles, de Sitter (dS) and Anti de Sitter (AdS) string states.The conducting line of argument is the classical-quantum (de Broglie, Compton) duality ...
Sanchez, Norma G.
core   +4 more sources

Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the String‐Theoretical Swampland Programme

open access: yesFortschritte der Physik, Volume 74, Issue 4, April 2026.
Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley   +1 more source

Monopoles, Clarified

open access: yesFortschritte der Physik, Volume 74, Issue 3, March 2026.
ABSTRACT We propose a manifestly duality‐invariant, Lorentz‐invariant, and local action to describe quantum electrodynamics in the presence of magnetic monopoles that derives from Sen's formalism. By employing field strengths as the dynamical variables, rather than potentials, this formalism resolves longstanding ambiguities in prior frameworks.
Aviral Aggarwal   +2 more
wiley   +1 more source

In-hospital blood collection increases the rate of indeterminate results in interferon-gamma release assays

open access: yesTherapeutic Advances in Respiratory Disease, 2022
Background: The interferon (IFN)-γ release assay (IGRA) has recently been established as a method to evaluate the infection status of tuberculosis instead of the tuberculin skin test. However, indeterminate results can create challenges to interpretation.
Yuki Osakabe   +14 more
doaj   +1 more source

Comparative Evaluation of Standard E TB-Feron ELISA and QuantiFERON-TB Gold Plus Assays in Patients with Tuberculosis and Healthcare Workers

open access: yesDiagnostics, 2021
Recently, the American Thoracic Society/Infectious Diseases Society of America/Centers for Disease Control and Prevention advised against performing the interferon-γ-release assay (IGRA) test for individuals with a low risk of TB, and also recommended ...
In Young Yoo   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy