Results 21 to 30 of about 557,330 (240)

The effect of different mouth washes and text messages reminder in the oral health of orthodontic patients

Brazilian Journal of Oral Sciences, 2020
Aim: The aim of this study was to investigate the effect of different mouth washes and to study the effect of text message reminder on the oral health status of orthodontic patients treated with fixed appliances.
Saba N. Yaseen, Aisha A. Qasim , Ali R. Al-Khatib   +2 more
doaj   +1 more source

Evaluation of Chlorinated Hydrocarbon Concentrations in Tehran’s Districts Drinking Water [PDF]

آب و فاضلاب, 2012
In this study Tehran’s drinking water was evaluated for the presence of chlorinated hydrocarbons during spring and summer of 2009. Chlorinated hydrocarbons are an important class of environmental pollutants that cause adverse health effects on human’s ...
Alireza Pardakhti, Gholamreza Nabibidhendi, Abdolreza Karbasi, Masoud Younesian, Sima Amini   +4 more
doaj  

Heat-Activated Persulfate Oxidation of Chlorinated Solvents in Sandy Soil

Journal of Spectroscopy, 2014
Heat-activated persulfate oxidative treatment of chlorinated organic solvents containing chlorinated ethenes and ethanes in soil was investigated with different persulfate dosages (20 g/L, 40 g/L, and 60 g/L) and different temperatures (30°C, 40°C, and ...
Jialu Liu, Xijun Gong, Shijun Song, Fengjun Zhang, Cong Lu   +4 more
doaj   +1 more source

One‐Dimensional Polycyclic Aromatic Hydrocarbons Incorporating Multiple Dithiafulvene Units—Novel Multi‐Redox and Electrochromic Systems

Angewandte Chemie, EarlyView.
Planar polycyclic aromatic hydrocarbons (PAHs) incorporating three or four dithiafulvene (DTF) units were synthesized via Horner–Wadsworth–Emmons reactions to create large π‐conjugated redox‐active frameworks. These molecules display strong intermolecular associations and distinct odd–even redox behavior, enabling formation of mixed‐valence and radical‐
Cecilie Rindom, Florim Seljmani, Lukas Bradley Woodcock, Mogens Brøndsted Nielsen   +3 more
wiley   +2 more sources

Self‐assembled Helical Tetramer Stack of Terrylene Bisimide in Solution and Crystalline State

Angewandte Chemie, EarlyView.
A TBI with sterically demanding imide substituents self‐assembles in solution into a defined helical tetramer π‐stack. Both the monomer and the tetramer can form complexes with polycyclic aromatic guest molecules, resulting in the formation of tri‐ or hexalayer in solution and in the crystalline solid state.
Simon Soldner, Kazutaka Shoyama, Matthias Stolte, Frank Würthner   +3 more
wiley   +2 more sources

Surface‐State–Regulated Product Distribution in Photothermal CO2 Hydrogenation Over MXene‐Based S‐Scheme Catalyst

Angewandte Chemie, EarlyView.
This work establishes an MXene‐based S‐scheme heterojunction in which the cooperative interplay among metallic Ni, surface NiOx domains, and conductive Ti3C2Clx drives efficient charge separation and photothermal coupling. Progressive evolution of Ni surface states regulates the CH4/CH3OH product distribution by modulating interfacial energetics and ...
Dawid D. Kruger, María Cabrero‐Antonino, Silvio Osella, Feiyan Xu, Jiaguo Yu, Ana Primo, Hermenegildo Garcia   +6 more
wiley   +2 more sources

Bioelectrochemical Chlorinated Aliphatic Hydrocarbons Reduction in Synthetic and Real Contaminated Groundwaters

Chemical Engineering Transactions, 2022
The widespread contamination of chlorinated aliphatic hydrocarbons (CAHs) as Perchloroethylene (PCE) and Trichloroethylene (TCE) over the past recent years and their uncorrected disposal and storing brought these substances to become one of the most ...
Edoardo Dell'Armi, Marta Maria Rossi, Marco Zeppilli, Mauro Majone, Marco Petrangeli Papini   +4 more
doaj   +1 more source

Formation of chlorinated hydrocarbons by water chlorination

Chemosphere, 1994
Abstract Model experiments were carried out on the reaction behaviour of benzene, phenol and phenylalanine during chlorination with NaOCI in aqueous solution. The influence of the pH-value, concentration, reaction time and UV-light were also determined.
Lahaniatis, E. S., Bergheim, W., Kotzias, D., Pilidis, G.   +3 more
openaire   +2 more sources

Inflammation mediators in employees in chronic exposure to neurotoxicants

International Journal of Occupational Medicine and Environmental Health, 2014
Objectives: The aim of this work is to perform comparative estimation of cytokines levels in chlorinated hydrocarbons and metallic mercury exposure in employees in the dynamics of neurologic disorders formation.
Galina Bodienkova, Roman Alekseev, Elena Boklazhenko, Svetlana Kurchevenko   +3 more
doaj   +1 more source

Cometabolic degradation mechanism and microbial network response of methanotrophic consortia to chlorinated hydrocarbon solvents

Ecotoxicology and Environmental Safety, 2022
The cometabolism mechanism of chlorinated hydrocarbon solvents (CHSs) in mixed consortia remains largely unknown. CHS biodegradation characteristics and microbial networks in methanotrophic consortia were studied for the first time.
Peipei Chen, Hao Liu, Zhilin Xing, Yongqiong Wang, Xiaoping Zhang, Tiantao Zhao, Yunru Zhang   +6 more
doaj   +1 more source