Results 41 to 50 of about 204,985 (297)

Second-Order Pseudo-Hermitian Spin-1/2 Bosons

Universe
The canonical quantization of a field theory for spin-1/2 massive bosons that satisfy the Klein–Gordon equation is presented. The breakdown of the usual spin–statistics connection is due to the redefinition of the dual field, rendering the theory pseudo ...
Armando de la C. Rangel-Pantoja, I. Díaz-Saldaña, Carlos A. Vaquera-Araujo   +2 more
doaj   +1 more source

Removal of Boron from aqueous solutions by adsorption using fly ash, zeolite and demineralized lignite [PDF]

, 2009
In the present study for the purpose of removal of boron from water by adsorption using adsorbents like fly ash, natural zeolite and demineralized lignite was investigated.
Yuksel, Seren, Yurum, Yuda, Yüksel, Seren, Yürüm, Yuda   +3 more
core   +2 more sources

A Revised Pseudo-Second Order Kinetic Model for Adsorption, Sensitive to Changes in Sorbate and Sorbent Concentrations [PDF]

, 2020
Much contemporary research considers the development of novel sorbents for the removal of toxic contaminants. Whilst these studies often include experimental adsorption kinetics, modelling is normally limited to application of the pseudo-second order (PSO) rate equation, which provides no sensitivity towards changes in experimental conditions and thus ...
JAY BULLEN, Sarawud Saleesongsom, Dominik Weiss   +2 more
openaire   +1 more source

Dyes removal from water using low cost absorbents [PDF]

, 2017
In this study, the removal capacity of low cost adsorbents during the adsorption of Methylene Blue (MB) and Congo Red (CR) at different concentrations (50 and 100mg•L-1) was evaluated.
A P Ramirez, E Flórez, M Ulloa, N Y Acelas, Ramirez A, S Giraldo   +5 more
core   +1 more source

Sertraline Treatment Can Mimic Niemann‐Pick Type C Biomarker Profile: A Diagnostic Pitfall

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Oxysterols (cholestane‐3β,5α,6β‐triol and 7‐ketocholesterol) and N‐palmitoyl‐O‐phosphocholineserine (PPCS) are sensitive biomarkers for Niemann‐Pick disease type C (NPC) screening. However, false‐positive results occur, with a biomarker profile suggestive of NPC despite the absence of pathogenic variants in genes involved in NPC or ...
Maria Makrygianni, Cecile Pagan, Antony Citterio‐Quentin, Isabelle Rouvet, Giulia Dingeo, Cyril Hanin, Claudine Laurent‐Levinson, Samia Pichard, Bénédicte Héron, Clément Gourguechon, Daniele Mandia, Jerome Guitton, Carole Lacout, Nicolas Schleinitz, Florient Potier, Olivier Flabeau, Elsa Besse‐Pinot, Foudil Lamari, Magali Pettazzoni, Yann Nadjar   +19 more
wiley   +1 more source

Generation Mechanism and Characteristic Analysis of Dual-Frequency Pseudo-Signal Interference of the Swept-Frequency Radar

International Journal of Antennas and Propagation, 2022
In order to master the law of the pseudo-signal interference effect of dual-frequency electromagnetic radiation in typical radar equipment, a certain type of Ku-band swept-frequency ranging radar was used as the test object to carry out single-frequency ...
Hong-Ze Zhao, Guang-Hui Wei, Xiao-Dong Pan, Xue Du, Xu-Xu Lyu   +4 more
doaj   +1 more source

ADSORPTION RATE CONSTANT AND CAPACITIES Of LEAD(II) REMOVAL FROM SYNTHETIC WASTEWATER USING CHITOSAN SILICA [PDF]

, 2014
The adsorption rate constant and capacities for the removal of Pb(II) from synthetic wastewater using chitosan silica were investigated. The adsorption kinetics model is used to determine the rate of adsorption is the order of the one nearing ...
Dina, kartika, Sari Edi, Cahyaningrum
core  

Synthesis and characterization of nanometric titania coated on granular alumina for arsenic removal [PDF]

, 2016
The adsorption process is widely used for the treatment of drinking water sources containing high levels of arsenic. The choice of the adsorbent is crucial for the efficiency of the process.
Chianese, Angelo, Chiavola, Agostina, D'Amato, Emilio, Kanaev, Andrei, Tchieda, Viktor K.   +4 more
core   +1 more source

Retractions in Rheumatology: Trends, Causes, and Implications for Research Integrity

Arthritis Care &Research, EarlyView.
Objective We aimed to describe the trends and main reasons for study retraction in rheumatology literature. Methods We reviewed the Retraction Watch database to identify retracted articles in rheumatology. We recorded the main study characteristics, authors’ countries, reasons for retraction, time from publication to retraction, and trends over time ...
Anna Maria Vettori, Michele Iudici
wiley   +1 more source

Biosorption characteristics of Pennisetum glaucum for the removal of Pb(II), Ni(II) and Cd(II) ions from aqueous medium

Green Chemistry Letters and Reviews, 2017
Kinetics and thermodynamic studies were carried out for the removal of heavy metals (Pb+2, Ni+2 and Cd+2) from aqueous solution by using Pennisetum glaucum. Surface morphology and elemental analysis were investigated with scanning electron microscope and
Amna Yousaf, Makshoof Athar, Muhammad Salman, Umar Farooq, Faraz Shahzad Chawla   +4 more
doaj   +1 more source