Search results for "CID"
showing 10 items of 19479 documents
Chronic toxicity of diazinon todaphnia magna:Effects on survival, reproduction and growth
1995
The sublethal effect of 0.15, 0.18, 0.22, 0.25 and 0.30 μg/L diazinon on the survival, reproduction and growth of D. magna was monitored for 21 days. Neonates (≤ 24 h) were obtained from the stock cultures and raised individually in 50 mL glass beakers. All daphnids were transfered every other day to a new beaker containing fresh medium, food and the appropriate pesticide concentration. The animals were maintained in an environmental chamber at 22±1°C on a 12L: 12D photoperiod and were fed daily on 5 x 105 cell/mL of the green algae Nannochloris oculata. The parameters used to determine the effect of the pesticide on reproduction were: mean total young per female, mean brood size, mean numb…
Environmental Aspect Concerning Phthalates Contamination: Analytical Approaches and Assessment of Biomonitoring in the Aquatic Environment
2023
This review is a survey of recent progress in studies concerning the impact of phthalic acid esters in aquatic organisms. After introducing the classification, properties, sources, fate, and toxic effects related to phthalates, an overview of the techniques of extraction and analysis of these substances is provided. As a result, the general concepts of environmental bioindicators, biomonitoring systems, and other concepts related to phthalate contamination in the aquatic environment are presented. Recent bioaccumulation data of different phthalates are summarised in a table and organised according to the type of organism, tissue, and geographical area of sampling. Bioindicator organisms tha…
Appraisal of Combined Applications of Trichoderma virens and a Biopolymer-Based Biostimulant on Lettuce Agronomical, Physiological, and Qualitative P…
2020
The current research elucidated the agronomical, physiological, qualitative characteristics and mineral composition of lettuce (Lactuca sativa L. var. longifolia) after treatments with a beneficial fungus Trichoderma virens (TG41) alone or in combination with a vegetal biopolymer-based biostimulant (VBP
Characterization and transcription studies of a phytochelatin synthase gene from the solitary tunicate Ciona intestinalis exposed to cadmium.
2014
The major thiol-containing molecules involved in controlling the level of intracellular ROS in eukaryotes, acting as a nonenzymatic detoxification system, are metallothioneins (MTs), glutathione (GSH) and phytochelatins (PCs). Both MTs and GSH are well-known in the animal kingdom. PC was considered a prerogative of the plant kingdom but, in 2001, a phytochelatin synthase (PCS) gene was described in the nematode Caenorhabditis elegans; additional genes encoding this enzyme were later described in the earthworm Eisenia fetida and in the parasitic nematode Schistosoma mansoni but scanty data are available, up to now, for Deuterostomes. Here, we describe the molecular characteristics and transc…
Recovery of pickling acid solutions by membrane technology: the EU REWACEM Project
2017
Resource recovery from industrial waste water by cutting edge membrane technologies
Utilizzo del pied de cuve fortificato per la fermentazione spontanea di vini rossi di qualità
2018
La fermentazione spontanea è un processo biologico incontrollato durante il quale molti lieviti e/o batteri potrebbero aumentare rapidamente in concentrazioni tali incidere negativamente sulla qualità del prodotto finale. A tal proposito, al fine di ottimizzare la crescita di lieviti con buone attitudini enologiche, si utilizza il metodo “pied de cuve”. Questa tecnica enologica è in grado di realizzare in una determinata massa di mosto dal volume ridotto, una fermentazione alcolica con un ceppo di lievito opportunamente inoculato o con ceppi di lieviti indigeni, naturalmente presenti nel mosto. Al fine di valorizzazione ed aumentare la diffusione di pratiche enologiche basate su un ridotto …
Compuestos bioactivos y capacidad antioxidante en zumos y extractos de residuos, obtenidos por ultrasonidos, de mandarinas híbridas
2022
Los cítricos son el cultivo más importante a nivel mundial. La elaboración de zumos genera grandes cantidades de residuos de fácil degradación, pero con alto contenido de compuestos bioactivos. La extracción asistida con ultrasonidos es uno de los métodos no-convencionales de extracción con resultados favorables. Durante la extracción son necesarios procesos de clean-up que favorezcan la purificación de los extractos para su mejor aprovechamiento. Además, la bibliografía indica que existe un mayor número de estudios con los de cítricos más conocidos, sin embargo, pocas investigaciones muestran resultados en mandarinas híbridas. Por todo ello el objetivo del presente trabajo es el estudio de…
Piespiedu darbs
2015
Piespiedu darbs kā kriminālsods Latvijā pastāv jau vairāk kā piecpadsmit gadus, taču līdz šim nopietni pētījumi par piespiedu darba ietekmi uz atkārtotu noziedzīgu nodarījumu izdarīšanu nav veikti, bet pieejamā informācija par noziedzīgu nodarījumu recidīvu nav īpaši plaša. Bakalaura darba ietvaros izpētīta piespiedu darba būtība un mērķis, kā arī tā piemērošana un izpilde gan Latvijā, gan vairākās citās Eiropas valstīs – Šveicē, Serbijā, Francijā, Ungārijā un Somijā –, apskatītas būtiskākās atšķirības starp Latvijā un iepriekš minētajās valstīs pastāvošo piespiedu darba regulējumu, lai rosinātu veikt izmaiņas pastāvošajā kārtībā, piemēram, piespiedu darba aizstāšanā ar brīvības atņemšanu p…
Cold Exposure Affects Lipid Metabolism, Fatty Acids Composition and Transcription in Pig Skeletal Muscle
2021
Cold exposure promotes glucose oxidation and modulates the lipid metabolism in adipose tissue, but it is still not fully clear whether cold exposure could affect meat quality and fatty acid metabolism in skeletal muscle of pig in vivo. Here, we kept finishing pigs under cold or room temperature overnight and determined the effects of cold exposure on meat quality, fatty acids composition and transcriptional changes in skeletal muscle of pigs. We found that cold exposure significantly reduced the meat colour24 h and pH24 h, without affecting carcass characteristics and other meat quality traits. Considerable changes were found in the proportions of individual fatty acids and the total conten…
Removal of silicon from CFB-derived fly ash leachate in the context of phosphorus recovery
2018
High concentrations of dissolved silica in the acid leachate impose two major challenges on precipitation based recovery of phosphorus (P). Firstly, co-precipitation of colloidal silica in the acidic regimes decreases the purity and value of precipitated P-products. In addition, silica scaling on internal surfaces of equipment is also a problematic issue in industrial operations. Therefore, removal of dissolved silica prior to P-recovery process minimizes the risks of Si-contamination in P-products and Si-scaling. In the present study, silica removal was achieved by accelerated silica polymerization with higher acidity and ionic strength of mineral acid, which also assisted the leaching of …