Relevant bibliographies by topics / Toxicologie – Optique

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  1. Journal articles
  2. Dissertations / Theses

Academic literature on the topic 'Toxicologie – Optique'

Author: Grafiati
Published: 15 February 2025
Last updated: 31 July 2025

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Journal articles on the topic "Toxicologie – Optique"

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Gautam, Nawaraj. "Food Colorants and their Toxicology: An Overview." Sunsari Technical College Journal 2, no. 1 (2016): 69–75. http://dx.doi.org/10.3126/stcj.v2i1.14803.

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There are many kinds of colorants, which have been already banned or are used under strict supervision of food safety authorities. Use of artificial colorants over natural ones has increased in modern world. Besides, it has also concerned on importance of toxicological studies. Acceptable daily intake (ADI) of different colorants will define the optimum level of coloring substances on food items. Molecular size of coloring agents and their absorption ratio have significant role in toxico-kinetics. Bigger molecular size has lower absorption capacity and toxicity while vice versa for the smaller
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Chinyere, Eleanya,, Igboanugo, Uchechukwu, Dibua, Nwamaka Anthonia, et al. "Dough Rising Capacity of a Novel Yeast Yarrowia Phangngaensis Isolated from Palmwine as Bakery Yeast Option." International Journal of Research and Innovation in Applied Science X, no. V (2025): 808–23. https://doi.org/10.51584/ijrias.2025.100500074.

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The ability of yeast rise dough, enhance texture and sensory properties are highly valued by bakers. The aim of this study was to evaluate dough rising capacity of a novel yeast Yarrowia phangngaensis isolated from palmwine as bakery yeast option. Palmwine samples were collected from different parts of Anambra State. Thirty-five yeast isolate were screened for bakery yeast potentials, selected yeasts were subjected to stress tolerance, optimization of cultural conditions, pathogenicity test, dough leavening capacity, sensory evaluation and toxicology study. The results show that the most suita
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3

Charlebois, Denis, Konka Veeranjaneyulu, and Roger M. Leblanc. "Étude de l’activité photosynthétique à l’aide de la spectroscopic photoacoustique: applications potentielles en écotoxicologie." Water Quality Research Journal 28, no. 4 (1993): 743–56. http://dx.doi.org/10.2166/wqrj.1993.040.

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Résumé La spectroscopic photoacoustique permet la détection de la chaleur émise lors de désactivations thermiques suite à l’absorption, par un échantillon, de la lumière monochromatique modulée. En faisant varier la longueur d’onde du faisceau d’analyse, nous obtenons un spectre comparable à celui obtenu par la spectroscopic d’absorption. La spectroscopic photoacoustique possède l’avantage d’être applicable aux échantillons dont les propriétés optiques ne se prêtent pas aux techniques spectroscopiques conventionnelles, par exemple dans le cas des algues unicellulaires. Cette technique permet,
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Betton, G., A. Cockburn, E. Harpur, et al. "A Critical Review of the Optimum Duration of Chronic Rodent Testing for the Determination of Non-Tumourigenic Toxic Potential: A Report by the BTS Working Party on Duration of Toxicity Testing." Human & Experimental Toxicology 13, no. 4 (1994): 221–32. http://dx.doi.org/10.1177/096032719401300401.

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This review indicates that for the detection of non-neoplastic toxic effects: 1 Four decades of accumulated literature provide no lead as to the optimum duration of repeat dose toxicity testing required for all classes of chemicals, although 6 months repeated administration appears adequate for pharmaceuticals. 2 Three month studies predicted the 2 year outcome for 70% of the compounds evaluated in this pilot study using data published by the US National Toxicology Program. 3 In spite of the limitations of this pilot study, this finding is considered encouraging as it is close to that generate
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Muhammad Qasim Memon, Rabail Altaf, Pardeep Kumar, Abrar Ul Hasnain Memon, Haya Afzal Memon, and Sultan Rajper. "The most optimum imaging modality for diagnosis of shajjah hurt in medicolegal cases of head injuries." Professional Medical Journal 30, no. 01 (2023): 118–23. http://dx.doi.org/10.29309/tpmj/2023.30.01.7122.

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Objective: To compare the optimum imaging modality to assess the various kinds of Shajjah hurt in MLE cases of head injuries. Study Design: Cross-sectional study. Setting: Department of Forensic Medicine and Toxicology at Gambat Medical College at Pir Abdul Qadir Shah Jeelani Institute of Medical Sciences, GAMBAT. Period: March 2021 to February 2022. Material & Methods: Medicolegal cases of head injuries of all age groups (infant to old) and of either gender presented to the Emergency department for treatment and medicolegal certification were included. 164 medicolegal cases of moderate to
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6

White, S. L., and D. M. Hoover. "Effects of long-term exposure to modified Karnovsky’s fixative on tissue ultrastructure." Proceedings, annual meeting, Electron Microscopy Society of America 48, no. 3 (1990): 806–7. http://dx.doi.org/10.1017/s042482010016159x.

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In toxicology studies, the potential to store tissues in the primary fixative offers the flexibility to collect selected specimens and hold them for further processing contingent upon findings in other areas such as histopathology and biochemistry. This would allow conservation of resources and time by eliminating the need to duplicate studies specifically for electron microscopy. Previous investigators have dealt primarily with the morphological effects on the tissue produced by various fixatives, buffers, and osmolalities while using optimum processing schedules. However, little information
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7

Krokos, Adamantios, Elisavet Tsakelidou, Eleni Michopoulou, Nikolaos Raikos, Georgios Theodoridis, and Helen Gika. "NSAIDs Determination in Human Serum by GC-MS." Separations 5, no. 3 (2018): 37. http://dx.doi.org/10.3390/separations5030037.

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Non-steroidal anti-inflammatory drugs (NSAIDs) are being widely consumed without medical prescription and are often the cause of intoxication, usually in young children. For this, there is a special need in their determination in routine toxicology analysis. As screening methods mainly focus on drugs of abuse (DOA) that are alkaline compounds in their majority, they are not optimized for acidic drugs, such as NSAIDs. Thus, more specific methods are needed for the detection and quantification of this class of drugs. In this study, the efficient extraction of NSAIDs from blood serum and their ac
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8

Norheim, Gunnar. "AN APPROACH TO THE PROBLEM OF OPTIMUM SELENIUM INTAKE IN MAN." Acta Pharmacologica et Toxicologica 59 (March 13, 2009): 177. http://dx.doi.org/10.1111/j.1600-0773.1986.tb02737.x.

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9

Scarpitta, S. Charles. "Optimum 222Rn-adsorbing Activated Charcoals." Health Physics 62, no. 6 (1992): 576–80. http://dx.doi.org/10.1097/00004032-199206000-00013.

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10

Xiong, Lu, Mengxue Peng, Meng Zhao, and Zhihong Liang. "Truncated Expression of a Carboxypeptidase A from Bovine Improves Its Enzymatic Properties and Detoxification Efficiency of Ochratoxin A." Toxins 12, no. 11 (2020): 680. http://dx.doi.org/10.3390/toxins12110680.

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Ochratoxin A (OTA) is a toxic secondary metabolite produced mainly by Penicillium spp. and Aspergillus spp. and commonly found in foodstuffs and feedstuffs. Carboxypeptidase A (CPA) can hydrolyze OTA into the non-toxic product ochratoxin α, with great potential to realize industrialized production and detoxify OTA in contaminated foods and feeds. This study constructed a P. pastoris expression vector of mature CPA (M-CPA) without propeptide and signal peptide. The results showed that the degradation rate of OTA by M-CPA was up to 93.36%. Its optimum pH was 8, the optimum temperature was 40 °C,
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Dissertations / Theses on the topic "Toxicologie – Optique"

1

Dittmar, Eric. "Etude des paramètres physico-chimiques lors de la thermolyse de matériaux utilisés en aéronautique et dans le bâtiment." Rouen, 1990. http://www.theses.fr/1990ROUE5008.

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Le développement d'un modèle-feu permettant le suivi des débits massiques, des températures, de l'opacité des fumées, des taux de CO et de CO2, rend possible l'estimation des risques présentés en cas d'incendie, par des matériaux utilisés dans l'industrie du bâtiment ou en aéronautique. L'acquisition et le traitement informatiques des données permettent de proposer une méthode de classement des matériaux, pour un risque donné et pour un scénario donné. Cette étude est menée parallèlement à une étude toxicologique recourant à une exposition animale et les particules de fumée sont observées en m
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2

Azemar, Nathan. "Μοdélisatiοn des tοxicités οptiques induites par radiοthérapie avec faisceaux de prοtοns". Electronic Thesis or Diss., Normandie, 2024. https://theses.hal.science/tel-04947852.

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La protonthérapie, grâce à sa capacité à délivrer des doses élevées aux tumeurs tout en épargnant les tissus sains, est une option thérapeutique privilégiée pour traiter des localisations proches des structures optiques. Cependant, les rayonnements peuvent endommager les voies visuelles et causer des déficits visuels sévères. Cette thèse vise à modéliser les toxicités optiques induites par la protonthérapie chez les patients traités pour des tumeurs de la tête et du cou. Le travail repose sur l’analyse de données dosimétriques et paracliniques collectées auprès de 223 patients traités par prot
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3

Juricek, Ludmila. "Rôles du récepteur aux hydrocarbures aromatiques (AhR) dans la structure de la myéline du système nerveux central de la souris." Thesis, Sorbonne Paris Cité, 2015. http://www.theses.fr/2015USPCB166.

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Le récepteur aux hydrocarbures aromatiques (AhR) est un facteur de transcription activé par de nombreux xénobiotiques (molécules étrangères à l’organisme) qui régule l’expression d’enzymes et transporteurs permettant le métabolisme et l’élimination de ces ligands. Cette protéine exprimée dans toutes les cellules chez les vertébrés, joue un rôle majeur dans la détoxication et la protection des organismes vis à vis des molécules toxiques. Des orthologues de celle-ci ont été identifiés chez les invertébrés mais ne semblent pas jouer le même rôle; ils sont exprimés principalement dans des neurones
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4

Ghazaly, Christelle. "Développement d’un capteur spectrophotométrique pour la mesure en temps réel des expositions professionnelles à l’ozone." Electronic Thesis or Diss., Université de Lorraine, 2019. http://www.theses.fr/2019LORR0207.

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L’ozone provoque des maux de tête, des lésions pulmonaires et oculaires, ainsi que des maladies respiratoires graves telles que l'asthme. L’ozone est émis dans l’atmosphère des lieux de travail dans différents secteurs, notamment les imprimeries, les stations d’épuration des eaux, les ateliers de soudage à l’arc électrique et les industries de transformation des matières plastiques. L’exposition des salariés à des concentrations dépassant les valeurs limites d'exposition professionnelle (VLEP) nationales et européennes de l’ozone, fixées à 100 ppbv sur 8 heures et à 200 ppbv sur 15 minutes, pe
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Journal articles
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