Results 61 to 70 of about 26,942 (292)

Molluscicidal Activity of Camellia Sinensis (Green Tea) and Camellia sinensis var. Assamica (Purple Tea) Extracts Against Biomphalaria pfeifferi, the Major Vector Snail of Human Schistosomiasis in Sub‐Saharan Africa

open access: yesJournal of Parasitology Research, Volume 2026, Issue 1, 2026.
Freshwater pulmonate snails are prevalent across Kenya and act as intermediate hosts for trematode parasites, some of which are snail vectors for human schistosomiasis. Chemical molluscicides have rarely been used routinely in Kenya to control snails due to high costs of manufacture and the subsequent environmental concerns associated with their use ...
Nickson Samoo   +7 more
wiley   +1 more source

Pentachlorophenol reduction in raw Cauca river water through activated carbon adsorption in water purification

open access: yesIngeniería e Investigación, 2008
Reducing chemical risk in raw water from the River Cauca (caused by the presence of pentachlorophenol and organic matter (real color, UV254 absorbance)) was evaluated at bench scale by using three treatment sequences: adsorption with powdered ac-tivated ...
Camilo Hernán Cruz Vélez   +6 more
doaj  

Adsorption of pentachlorophenol onto activated carbon in a fixed bed : a thesis presented in partial fulfilment of the requirements for the degree of Master of Technology in Environmental Engineering at Massey University [PDF]

open access: yes, 1995
The adsorption of pentachlorophenol (PCP) from water onto granular activated carbon (GAC) was studied. Equilibrium and kinetic behaviour was studied, and the results used to predict fixed bed adsorber behaviour.
Slaney, Andrew James
core  

A biology-based dynamic approach for the modelling of toxicity in cell-based assays. Part I: Fate modelling [PDF]

open access: yes, 2010
There is a need to integrate existing in vitro dose-response data in a coherent framework for extending their domain of applicability as well as their extrapolation potential.
BOUHIFD Mounir   +3 more
core   +1 more source

State‐of‐the‐Art, Insights, and Perspectives for MOFs‐Nanocomposites and MOF‐Derived (Nano)Materials

open access: yesAdvanced Materials, Volume 37, Issue 52, December 29, 2025.
Different approaches to MOF‐NP composite formation, such as ship‐in‐a‐bottle, bottle‐around‐the‐ship and in situ one‐step synthesis, are used. Owing to synergistic effects, the advantageous features of the components of the composites are beneficially combined, and their individual drawbacks are mitigated.
Stefanos Mourdikoudis   +6 more
wiley   +1 more source

Chlorophenols in tap water from wells and surface sources in Rio de Janeiro, Brazil: method validation and analysis

open access: yesQuímica Nova, 2012
Two analytical methods were validated for determination of trichlorophenols, tetrachlorophenols and pentachlorophenol in drinking water. Limits of quantification were at least ten times lower than maximum permissible levels set by the Brazilian ...
André Victor Sartori   +4 more
doaj   +1 more source

The ecological impact of different mechanisms of chronic sub-lethal toxicity on feeding and respiratory physiology [PDF]

open access: yes, 1994
Sub-lethal toxicity tests, such as the scope-for-growth test, reveal simple relationships between measures of contaminant concentration and effect on respiratory and feeding physiology.
Willows, R.
core  

Activation in Organic and Macromolecular Including Peptide Synthesis by Fluorinated Carboxylic Acids and Derivatives

open access: yesEuropean Journal of Organic Chemistry, Volume 28, Issue 44, November 28, 2025.
This concept paper highlights the importance and the historical developments of activated carboxylic acids in organic, macromolecular, bioorthogonal, and peptide synthesis. It dicusses the use of activated ester, including fluorinated activated ester and other activated carboxylic acid derivatives.
Virgil Percec   +2 more
wiley   +1 more source

PHOTOCATALYTIC DEGRADATION OF PENTACHLOROPHENOL (PCP) USING IMOBILIZED TiO2

open access: yesIndonesian Journal of Chemistry, 2010
Imobilization of titanium plate using titanium diisopropoxide as a precursor, that will be used as a catalyst for degradation of pentachlorophenol (PCP) has been done.
Winarti Andayani, Agustin Sumartono
doaj   +1 more source

Cloning, sequencing, and characterization of the hexahydro-1,3,5-trinitro-1,3,5-triazine degradation gene cluster from Rhodococcus rhodochrous [PDF]

open access: yes, 2002
Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) is a high explosive which presents an environmental hazard as a major land and groundwater contaminant.
Basran, A   +6 more
core   +2 more sources

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