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Articoli di riviste sul tema "Contamination"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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1

Felde, Nadja, Anne Gärtner, Stefan Schwinde, and Sven Schröder. "Multifunctional contamination-resistant coatings." EPJ Web of Conferences 215 (2019): 02002. http://dx.doi.org/10.1051/epjconf/201921502002.

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Surface contaminations can critically affect the performance of optical surfaces, in particular with respect to light scattering, optical losses, and laser stability. Thus, avoiding contaminations and reducing contamination-induced effects is of particular interest in the manufacturing of optical systems. By combining a specific thin film design with a tailored structural design, contamination-resistant coatings with a high optical quality can be realized. Most important is the balance of self-cleaningand light scattering-relevant surface roughness components.

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Jalilzadeh-Amin, Ghader, Bahram Dalir-Naghadeh, Masoud Ahmadnejad-Asl-Gavgani, Aziz A. Fallah, and Amin Mousavi Khaneghah. "Prevalence and Concentration of Mycotoxins in Animal Feed in the Middle East and North Africa (MENA): A Systematic Review and Meta-Analysis." Toxins 15, no. 3 (2023): 214. http://dx.doi.org/10.3390/toxins15030214.

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This study seeks a comprehensive meta-analysis of mycotoxin contaminants in animal feed consumed in the Middle East and North Africa (MENA) region. The obtained articles were reviewed, and 49 articles that investigated the contamination of mycotoxins including aflatoxins (AFs), deoxynivalenol (DON), zearalenone (ZEA), T-2 toxin, fumonisins (FUM), and ochratoxin A (OTA), in feed samples or components of animal feed in the MENA region were selected. The titles of the final articles included in the study were meta-analyzed. Necessary information was extracted and categorized from the articles, an

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3

Paul, Dipayan, Henk A. Been, Anita Th Aerts-Bijma, and Harro A. J. Meijer. "Contamination on AMS Sample Targets by Modern Carbon is Inevitable." Radiocarbon 58, no. 2 (2016): 407–18. http://dx.doi.org/10.1017/rdc.2016.9.

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AbstractAccelerator mass spectrometry (AMS) measurements of the radiocarbon content in very old samples are often challenging and carry large relative uncertainties due to possible contaminations acquired during the preparation and storage steps. In case of such old samples, the natural surrounding levels of 14C from gases in the atmosphere, which may well be the source of contamination among others, are 2–3 orders of magnitude higher than the samples themselves. Hence, serious efforts are taken during the preparation steps to have the samples pristine until measurements are performed. As samp

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4

Matthew, N. O. Sadiku. "Food Contamination: A Primer." International Journal of Advances in Scientific Research and Engineering (ijasre) 6, no. 3 (2020): 1–7. https://doi.org/10.31695/IJASRE.2020.33736.

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<em>Food is regarded as hygienic and safe for consumption when it does not pose any threat or risk to the health and economy such as sales loss. Food contamination occurs when bacteria or other germs get into food, which can cause food-borne illness. While most food contaminations are accidental, there has been some evidence of intentional food contamination.  A major accident in food contamination can cost a company a massive recall that may be devastating to its reputation and profit because it has serious consequences for the health and wellbeing of people and the planet. Thi

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5

Wu, Xin, Fanan Suksawat, Allen L. Richards, Seangphed Phommachanh, Dusadee Phongaran, and Sunpetch Angkititrakul. "Evaluation of the Containment of Antimicrobial-Resistant Salmonella Species from a Hazard Analysis and Critical Control Point (HACCP) and a Non-HACCP Pig Slaughterhouses in Northeast Thailand." Pathogens 9, no. 1 (2019): 20. http://dx.doi.org/10.3390/pathogens9010020.

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To evaluate the containment of antimicrobial-resistant (AMR) Salmonella contaminations of a HACCP slaughterhouse (HACCP SH) and a non-HACCP slaughterhouse (non-HACCPSH), 360 paired pig rectal (representing the farm pig status) and carcass samples (representing the contamination) were collected equally from the two slaughterhouses that serviced 6 and 12 farms, respectively, in Northeast Thailand (n = 720). The purified Salmonella isolates were serotype identified, antimicrobial susceptibility tested, and pulsed-field gel electrophoresis (PFGE) assessed. Four evaluations of two slaughterhouses w

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6

Wahab, M. H. A., N. A. M. Jamail, E. Sulaiman, Q. E. Kamarudin, N. A. Othman, and S. M. N. S. Othman. "Space Charge and Electric Field Analysis on Contaminated XLPE Insulator." Indonesian Journal of Electrical Engineering and Computer Science 12, no. 1 (2018): 370. http://dx.doi.org/10.11591/ijeecs.v12.i1.pp370-377.

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<p>Nowadays, XLPE cable has been widely used because it has better resistance than other cables. XLPE insulation has unique features including a high dielectric strength and high insulation resistance. A lot of researches based on hardware and software have been conducted to prove the effectiveness of XLPE cable such as AC and DC applications and Space Charge Distribution measurement under HVDC at High Temperature. This research focused on analysis of space charge and electric field on XLPE cable with effect of non-uniform contamination layer by using Quickfield Software. Non-uniform con

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M., H. A. Wahab, A. M. Jamail N., Sulaiman E., E. Kamarudin Q., A. Othman N., and M. N. S. Othman S. "Space Charge and Electric Field Analysis on Contaminated XLPE Insulator." Indonesian Journal of Electrical Engineering and Computer Science 12, no. 1 (2018): 370–77. https://doi.org/10.11591/ijeecs.v12.i1.pp370-377.

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Nowadays, XLPE cable has been widely used because it has better resistance than other cables. XLPE insulation has unique features including a high dielectric strength and high insulation resistance. A lot of researches based on hardware and software have been conducted to prove the effectiveness of XLPE cable such as AC and DC applications and Space Charge Distribution measurement under HVDC at High Temperature. This research focused on analysis of space charge and electric field on XLPE cable with effect of nonuniform contamination layer by using Quickfield Software. Non-uniform contamination

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8

Chanana, A. D., and D. D. Joel. "Contamination of lung lymph following standard and modified procedures in sheep." Journal of Applied Physiology 60, no. 3 (1986): 809–16. http://dx.doi.org/10.1152/jappl.1986.60.3.809.

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The sheep lung lymph fistula preparation of Staub et al. is reported to be contaminated by systemic lymph. The published estimates of contamination range from 5% (awake sheep) to 60% (anesthetized sheep). In view of these conflicting estimates, we investigated the pre- and postoperative contaminating sources, morphological and functional consequences of the proposed contamination reducing modifications, and base-line lung lymph flow in awake sheep following standard and modified cannulation procedures. Our morphological observations are not compatible with the higher estimates of contamination

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9

Szpak, Dawid, and Barbara Tchórzewska – Cieślak. "Analysis And Assessment Of The Security Method Against Incidental Contamination In The Collective Water Supply System." Journal of KONBiN 34, no. 1 (2015): 49–58. http://dx.doi.org/10.1515/jok-2015-0023.

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Abstract The paper presents the main types of surface water incidental contaminations and the security method against incidental contamination in water sources. Analysis and assessment the collective water supply system (CWSS) protection against incidental contamination was conducted. Failure Mode and Effects Analysis (FMEA) was used. The FMEA method allow to use the product or process analysis, identification of weak points, and implementation the corrections and new solutions for eliminating the source of undesirable events. The developed methodology was shown in application case. It was fou

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10

Brnada, Snježana, Tanja Pušić, Tihana Dekanić, and Stana Kovačević. "Impact of Fabric Construction on Adsorption and Spreading of Liquid Contaminations." Materials 15, no. 6 (2022): 1998. http://dx.doi.org/10.3390/ma15061998.

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A contamination on a textile material is defined as an undesirable, local formation that deviates in appearance from the rest of the material. In this paper the relationship between the shape and surface of liquid contaminations and the firmness factor of woven fabric is investigated. The interdependence of constructional and structural parameters of raw and bleached cotton fabrics were analysed. The results show that selected contaminations are distributed differently, primarily depending on the construction characteristics of the fabric, type of contamination and hydrophilicity of cotton fab

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Liu, Shi, and Bin Liu. "Characterization of Surface Metal Contaminations on Fused Quartz." Solid State Phenomena 195 (December 2012): 277–79. http://dx.doi.org/10.4028/www.scientific.net/ssp.195.277.

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Micro-contamination exerts ever-increasing adverse impact on semiconductor manufacturing as device integration scale keeps increasing and device geometry continues decreasing. In particular, contaminations from particles, trace metals, and/or organic compounds can reduce device yield, quality, and reliability [. Metallic impurities from materials used for process equipment are one of the major contamination sources.

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Goulart, Adilson Correia, Simone Machado Goulart, and Anizio Marcio de Faria. "Environmental mobility and potential contamination of water resources with pesticides in the Ribeirão Santa Maria sub-basin, Brazil." CONTRIBUCIONES A LAS CIENCIAS SOCIALES 18, no. 3 (2025): e16273. https://doi.org/10.55905/revconv.18n.3-162.

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Pesticides are applied in agriculture to increase productivity. However, the continuous use of these compounds has caused the contamination of all environmental compartments. Pesticides can move through the air and soil, reaching surface or groundwaters. These dynamics are governed by their physicochemical properties, which predict the pesticide mobilities in the environment. In this work, we performed a prognosis of the mobility and environmental contamination of five pesticides (carbendazim, thiodicarb, diuron, fipronil, and chlorpyrifos) in the Ribeirão Santa Maria sub-basin in Brazil. The

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13

Silva, Leonardo Pessoa da, Josiane Bueno Salazar, Andréia Caroline Fischer da Silveira Fischer, Fernanda Ramos de Oliveira, and Fernanda Chiarello Stedile. "Effectiveness of polymeric gloves in radioprotection against contamination in nuclear medicine." Brazilian Journal of Radiation Sciences 11, no. 1A (2023): 1–18. http://dx.doi.org/10.15392/2319-0612.2023.2187.

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When handling unsealed radioactive sources, radiological protection attention must be taken to avoid unnecessary exposure and radioactive contaminations, and an important and necessary practice to prevent such contaminations is the use of gloves when handling these sources. The present work aimed to determine the effectiveness of contamination protection provided by different types of disposable polymeric gloves used in Nuclear Medicine Service in Clinic Hospital of Porto Alegre, testing the main radiopharmaceuticals used at this site: [99mTc]sodium pertechnetate, [18F]FDG and [131I]sodium iod

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14

Dvorakova, H., L. Valicek, and M. Reichelova. "Detection of mycoplasma contamination in cell cultures and bovine sera." Veterinární Medicína 50, No. 6 (2012): 262–68. http://dx.doi.org/10.17221/5622-vetmed.

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Contamination of cell cultures and sera used for animal virus propagation with mycoplasmas represents a serious problem, especially in virology. Therefore specific control measures must be used. To achieve this we introduced PCR for the detection of mycoplasma species in cell cultures and compared its results with ELISA and microbiological culture. Seven mycoplasma species which are the most common contaminants of cell lines (Mycoplasma arginini, M. fermentans, M. hyorhinis, M. bovis, M. orale, M. hominis, and Acholeplasma laidlawii) were used to verify the method. Then we assessed five select

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Bhargav, Prerna, Dharmesh Gupta, R. S. Jarial, Nivedita Sharma, and Rajneesh Thakur. "Fungal and Bacterial Contaminants Associated with the Spoilage of Mushroom Spawn." International Journal of Plant & Soil Science 35, no. 6 (2023): 87–95. http://dx.doi.org/10.9734/ijpss/2023/v35i62842.

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Contamination has been a major problem associated with spawn of mushroom. In this study, the contaminating microorganisms in the spawn were isolated, identified and described. Results indicated that majority of microorganisms causing spawn contamination were mainly fungal pathogens; a very low percentage of bacterial contamination was observed. The fungal species causing contamination were Fusarium chlamydosporum, Phoma exigua, Aspergillus niger, Penicillium chrysogenum, Aspergillus fumigatus and Fusarium pallidoroseum. Only one bacterial contaminant i.e. Bacillus sp. was reported under study.

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16

Essaweet, Najme Ahmed Mansour. "Spices in Local Market and Their Contamination by Aflatoxins, Tripoli - Libya." Al-Mukhtar Journal of Sciences 33, no. 4 (2018): 340–44. http://dx.doi.org/10.54172/mjsc.v33i4.309.

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Aflatoxins are considered the most carcinogenic, mutagenic and teratogenic substances found naturally in foods and feeds. These metabolites cause liver damage to humans and to most experimental animal species tested. This study was conducted to assess the level of contamination of spices such as caraway, mixed spices, cinnamon, black pepper, red pepper and cumin sold in Tripoli market with poisons aflatoxins. The results of this study showed that the highest contamination of Afla B1 was in black pepper samples (12.1 ± 0.7 µg/kg) and the lowest contamination was in mixed spice samples (3.4 ± 0.

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17

Dricks, Victor. "Contamination." Nature 378, no. 6552 (1995): 10. http://dx.doi.org/10.1038/378010b0.

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Bloch, Jonathan, and Sabine Blum. "Contamination." Blood 133, no. 14 (2019): 1612. http://dx.doi.org/10.1182/blood-2019-01-894451.

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Amass, Sandra, and Jessica Schneider. "Evaluation of the efficacy of a truck-mounted tire sanitizer system during winter weather." Journal of Swine Health and Production 14, no. 2 (2006): 101–4. http://dx.doi.org/10.54846/jshap/469.

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The efficacy of a tire sanitizer system in reducing bacterial counts on tires in winter was tested, but could not be adequately evaluated due to minimal bacterial contamination of tires. The number of bacteria contaminating tires under different seasonal conditions was also compared. Bacterial contamination of tires varied by season.

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20

Hosse, Alexander G. "660. Effect of the COVID-19 Pandemic on Blood Culture Contamination Rates and Quality Improvement Processes." Open Forum Infectious Diseases 8, Supplement_1 (2021): S432. http://dx.doi.org/10.1093/ofid/ofab466.857.

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Abstract Background Blood cultures are the gold standard for diagnosing bloodstream infections and a vital part of the work-up in systemic infections. However, contamination of blood cultures represents a significant burden on patients and the healthcare system with increased hospital length of stay, unnecessary antibiotics, and financial cost. The data discussed here offer insight into blood culture contamination rates before and through the COVID-19 pandemic at a community hospital and the processes that were affected by the pandemic. Methods Blood culture contaminations were determined by u

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21

Syifa Nadiyah Khairunnisa, Salsabila, Ramadhani Yanidar, Sheilla Megagupita Putri Marendra, Ariani Dwi Astuti, and Herika Muhamad Taki. "The Study of Septic Tank Proximity on Coliform, E. Coli, and Organic Contamination in Shallow Groundwater: a Case Study of DKI Jakarta." Journal of Community Based Environmental Engineering and Management 9, no. 1 (2025): 53–62. https://doi.org/10.23969/jcbeem.v9i1.21644.

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Groundwater in DKI Jakarta is subject to microbiological contamination. Approximately 32% of the population in DKI Jakarta relies on groundwater as an alternative source of clean water, highlighting the urgent need to address and prevent contamination. This study aims to investigate the effect of the separation distance between septic tanks and wells on the levels of Total coliform (TC), Escherichia coli (EC), and organic parameter contamination in shallow groundwater. Groundwater quality data, including TC, EC, and organic parameters from 265 monitoring points in DKI Jakarta, was obtained fro

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Ji, Chenyang, Sharon X. Wang, Kai Zhang, and Liang Wang. "The Impact of Fiber Cross Contamination on Radial Velocity Precision." Publications of the Astronomical Society of the Pacific 137, no. 6 (2025): 064503. https://doi.org/10.1088/1538-3873/add9d0.

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Abstract High-resolution spectrographs with precise radial velocity (PRV) capabilities require careful considerations in instrumental design and data processing in order to reach the 10 cm s−1-level precision, which is needed for detecting Earth-like planets. In this work, we investigate the impact of fiber cross contamination on the RV precision via simulations, as modern PRV spectrographs often have multiple fiber traces on their spectral images. We simulated extracted 1D spectra under the preliminary design of CHORUS, short for the Canary Hybrid Optical high-Resolution Ultra-stable Spectrog

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Mohd Ali, Afifah, Ahsan Ali Khan, and Mohammad Yeakub Ali. "Effect of Process Parameters on Abrasive Contamination during Water Abrasive Jet Machining of Mild Steel." Advanced Materials Research 264-265 (June 2011): 1015–20. http://dx.doi.org/10.4028/www.scientific.net/amr.264-265.1015.

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In the area of grit blasting, it is well known that microscopically small abrasive debris gets trapped on the surface, and due to impact the grits might cause the surface to fracture and a fraction of it to be embedded. The same problem appears in abrasive water jet (AWJ) machining especially in the so-called deformation wear zone or striation zone. The major aim in this study is to investigate the abrasive contamination on mild steel cutting surface. In the present study mild steel was used as the work material, since it is widely used in many industries. In order to analyze the pattern of th

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Priyadarshan, S. Ganvir, and Guhey Rajeeva. "An Evaluation Over The Methodological Efficiency In Groundwater Contamination Studies: A Case Study From Wardha Valley Coalfields." International Journal of Advance and Applied Research 4, no. 3 (2023): 37–44. https://doi.org/10.5281/zenodo.7597807.

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The coalfields are very usual with the groundwater contaminations and a proficient methodology is always sought by the researchers. The present article deals with the evaluation of methodology adopted in the heavy metals contamination studies in the Wardha valley coalfields, Maharashtra. On evaluating the methodology with the respective outcomes and other related works, it is suggestive to inflate the heavy metal contamination analysis by including the hydro-geochemical approach, which ultimately contributes an understanding of accountability for the contamination. The hydro-geochemical parame

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Denis, Fabrice, Anne-Lise Septans, Florian Le Goff, Stephan Jeanneau, and François-Xavier Lescure. "Analysis of COVID-19 Transmission Sources in France by Self-Assessment Before and After the Partial Lockdown: Observational Study." Journal of Medical Internet Research 23, no. 5 (2021): e26932. http://dx.doi.org/10.2196/26932.

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Background We developed a questionnaire on a web application for analyzing COVID-19 contamination circumstances in France during the second wave of the pandemic. Objective This study aims to analyze the impact on contamination characteristics before and after the second partial lockdown in France to adapt public health restrictions to further prevent pandemic surges. Methods Between December 15 and 24, 2020, after a national media campaign, users of the sourcecovid.fr web application were asked questions about their own or a close relative’s COVID-19 contamination after August 15, 2020, in Fra

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Chetan, Parmar, Patel Smit, Shah Rushil, and Manish Bhelande Prof. "Air and Sound Pollution Detector." Recent Innovations in Wireless Network Security 2, no. 3 (2020): 1–5. https://doi.org/10.5281/zenodo.4325728.

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<em>The developing air and sound contamination is one of the major issues nowadays. This huge measure of expanding contamination has made human life inclined to huge number of infections. Subsequently, it has now gotten important to control the contamination to guarantee solid work and better future. The Air and Sound Pollution Monitoring gadget can be gotten to by the specialists and the average folks having a place with the zone. The gadget will be introduced through a portable application which will show the live updates of the contamination level of the region. This framework chips away at

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LE GUYADER, FRANÇOISE S., ANNA-CHARLOTTE SCHULTZ, LARISSA HAUGARREAU, et al. "Round-Robin Comparison of Methods for the Detection of Human Enteric Viruses in Lettuce." Journal of Food Protection 67, no. 10 (2004): 2315–19. http://dx.doi.org/10.4315/0362-028x-67.10.2315.

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Five methods that detect human enteric virus contamination in lettuce were compared. To mimic multiple contaminations as observed after sewage contamination, artificial contamination was with human calicivirus and poliovirus and animal calici-virus strains at different concentrations. Nucleic acid extractions were done at the same time in the same laboratory to reduce assay-to-assay variability. Results showed that the two critical steps are the washing step and removal of inhibitors. The more reliable methods (sensitivity, simplicity, low cost) included an elution/concentration step and a com

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Lee, Jee-Hye, Min-Ji Kang, Ha-Eun Sim, and Je-Hyung Hwang. "Microbial Contamination of Preservative-Free Artificial Tears Based on Instillation Techniques." Pathogens 11, no. 5 (2022): 592. http://dx.doi.org/10.3390/pathogens11050592.

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Preservative-free artificial tears eliminate the side effects of preservatives but are prone to microbial contamination. This study evaluates the incidence of microbial contaminations in single-use vials of preservative-free 0.1% hyaluronate artificial tears. Based on what touched the vial tip during its first use, 60 unit-dose vials (0.5 mL) were divided into groups A (no touch, n = 20), B (fingertip, n = 20), and C (lid margin, n = 20). The vials were recapped after the first use, and the residual solution was cultured 24 h later. The solution from 20 aseptically opened and unused vials was

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Harmata, Władysław. "Immediate decontamination." Scientific Journal of the Military University of Land Forces 197, no. 3 (2020): 660–76. http://dx.doi.org/10.5604/01.3001.0014.3960.

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The article is devoted to a vital issue for the Polish Armed Forces, namely to the containment and elimination of contaminations. The main factors which are likely to cause the direct or indirect release of hazardous substances and the emergence of contaminations in the territory of the Republic of Poland (RP) include military operations, disasters and technical failures in industrial facilities, as well as terror-ism. The containment and elimination of contamination is an element of the WMD defense system, in which the combat capability of the army’s troops, equipment and military technology

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Merino, Margret E., Fariba Navid, Barbara L. Christensen, et al. "Immunomagnetic Purging of Ewing’s Sarcoma From Blood and Bone Marrow: Quantitation by Real-Time Polymerase Chain Reaction." Journal of Clinical Oncology 19, no. 16 (2001): 3649–59. http://dx.doi.org/10.1200/jco.2001.19.16.3649.

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PURPOSE: A propensity for hematogenous spread with resulting contamination of autologous cell products complicates cellular therapies for Ewing’s sarcoma. We used a new approach to purge artificially contaminated cellular specimens of Ewing’s sarcoma and show the capacity for real-time polymerase chain reaction (PCR) to quantify the contamination level of Ewing’s sarcoma in such specimens. PATIENTS AND METHODS: Binding of monoclonal antibody (MoAb) 8H9 to Ewing’s sarcoma cell lines and normal hematopoietic cells was studied using flow cytometry. Using real-time PCR–based amplification of t(11;

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Oltersdorf, Antje, Anamaria Moldovan, Michael Bayer, Martin Zimmer, and Jochen Rentsch. "Surface Contamination of Silicon Wafer after Acidic Texturisation." Solid State Phenomena 187 (April 2012): 337–40. http://dx.doi.org/10.4028/www.scientific.net/ssp.187.337.

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The acidic texture bath that is commonly used in crystalline silicon solar cell manufacturing is a mixture of HF/HNO3/H2O [. While the influences of metal contamination on silicon wafer surfaces as well as several cleaning methods were intensively investigated in the previous 30 years [ the effect of metal contaminations in texturisation baths has not yet been studied intensively. There are two categories of contaminations:

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Luo, Liang, Dong Li Ma, and Li Gong Zhan. "Effects of Interlaminal Contaminants on Mechanical Properties of Composite Laminates." Advanced Materials Research 320 (August 2011): 52–57. http://dx.doi.org/10.4028/www.scientific.net/amr.320.52.

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In this paper, the influence of interlaminal contaminations of water, oil and paper on the mechanical properties of carbon fiber reinforced epoxy composite laminates was researched. The results showed that the existence of interlaminal layered contaminations greatly degraded the mechanical properties of composite laminates. The deterioration of mechanical properties resulted from oil contamination was most serious. It was concluded that the ultimate tensile strength (UTS), compression strength and ILSS were more seriously influenced than corresponding modules. How those contaminations affected

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Douamba, Zoénabo, Mamoudou Ouarme, Sidbewendé Clarisse Compaore, et al. "Prévalence des souches de salmonelles dans les graines de sésame et leurs produits dérivés au Burkina Faso." International Journal of Biological and Chemical Sciences 16, no. 3 (2022): 1100–1112. http://dx.doi.org/10.4314/ijbcs.v16i3.16.

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Le sésame constitue le deuxième produit d’exportation agricole au Burkina Faso mais sa qualité n’est pas toujours satisfaisante à cause de la présence d’impuretés et parfois de microorganismes pathogènes notamment les salmonelles. La présente étude a pour objectif d’évaluer la prévalence des salmonelles dans le sésame et ses produits dérivés. Au total, 107 échantillons dont 73 échantillons de graines de sésame et 34 échantillons de produits dérivés de sésame (biscuits, croquettes, pâtes, pains) ont été soumis à la recherche de salmonelles selon la norme internationale ISO 6579-1, 2017. La rech

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Jacoby, Rick. "Monitoring Wells: Self-Contamination and Cross Contamination." Groundwater Monitoring & Remediation 10, no. 4 (1990): 77–78. http://dx.doi.org/10.1111/j.1745-6592.1990.tb00020.x.

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MARTINEZ-URTAZA, JAIME, JESUS PEITEADO, ANTONIO LOZANO-LEÓN, and OSCAR GARCIA-MARTIN. "Detection of Salmonella Senftenberg Associated with High Saline Environments in Mussel Processing Facilities." Journal of Food Protection 67, no. 2 (2004): 256–63. http://dx.doi.org/10.4315/0362-028x-67.2.256.

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A contamination by Salmonella Senftenberg in frozen mussels was detected in 1998 during a routine analytical surveillance. From June 1998 to December 2001, a total of 3,410 samples of steamed frozen mussels and items related to their manufacture were analyzed for the presence of Salmonella. Salmonella Senftenberg was isolated in 573 (16.8%) samples, and no other serovar was detected. The contamination episodes extended for several months. Salmonella Senftenberg colonies from the first contamination events showed a rugose morphology on agar with a shiny crystalline layer and limited colony form

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Pruski, Daniel, and Myroslav Sprynskyy. "Jet Fuel Contamination: Forms, Impact, Control, and Prevention." Energies 17, no. 17 (2024): 4267. http://dx.doi.org/10.3390/en17174267.

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This paper describes commonly used processes to produce aviation fuel and alternative routes with potential production yields for sustainable aviation fuels (SAF) like HEFA and ATJ. It also presents the possible sources (crude oil, refinery processes), causes (filter clogging, engine failure), and forms of contamination in both conventional and alternatively produced aviation fuels. Special attention is focused on the threats of fuel contamination with solid particles/trace elements, water, microorganisms, and fatty acid methyl esters (FAME). This review also presents the standard and novel ad

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Farhadloo, Roohollah, Jalil Goodarzi Far, Mohammad Reza Azadeh, Saeed Shams, and Mohammad Parvaresh-Masoud. "Evaluation of Bacterial Contamination on Prehospital Ambulances Before and After Disinfection." Prehospital and Disaster Medicine 33, no. 6 (2018): 602–6. http://dx.doi.org/10.1017/s1049023x1800095x.

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AbstractBackgroundThe contamination of the environment, ambulance equipment, and staff hands consequently are major factors which create nosocomial infections in emergency patients. The contamination of equipment and devices plays an important role in nosocomial infections.ObjectivesThe aim of this study was to determine the effectiveness of a disinfectant on the rate of microbial contamination of ambulances in Qom Emergency Medical Services (EMS), Qom, Iran.MethodsThis is a quasi-experimental study with a before-after design in order to determine microbial contaminations at the rear and front

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Banerjee, Kakoli, Vikram Bali, Nishad Nawaz, et al. "A Machine-Learning Approach for Prediction of Water Contamination Using Latitude, Longitude, and Elevation." Water 14, no. 5 (2022): 728. http://dx.doi.org/10.3390/w14050728.

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One of the significant issues that the world has faced in recent decades has been the estimation of water quality and location where safe drinking water is available. Due to the unexpected nature of the mode of water contamination, it is not easy to analyze the quality and maintain it. Some machine-learning techniques are used for predicting contaminating factors but there is no technique that can predict the contamination using latitude, longitude, and elevation. The main aim of this paper is to put factors such as water body location and elevation, which are used as inputs, into the differen

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MAITLAND, JESSICA, RENEE BOYER, DAN GALLAGHER, et al. "Tracking Cross-Contamination Transfer Dynamics at a Mock Retail Deli Market Using GloGerm." Journal of Food Protection 76, no. 2 (2013): 272–82. http://dx.doi.org/10.4315/0362-028x.jfp-12-271.

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Ready-to-eat (RTE) deli meats are considered a food at high risk for causing foodborne illness. Deli meats are listed as the highest risk RTE food vehicle for Listeria monocytogenes. Cross-contamination in the retail deli market may contribute to spread of pathogens to deli meats. Understanding potential cross-contamination pathways is essential for reducing the risk of contaminating various products. The objective of this study was to track cross-contamination pathways through a mock retail deli market using an abiotic surrogate, GloGerm, to visually represent how pathogens may spread through

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Dragon, Krzysztof. "Impact of human activity on groundwater chemistry (Wielkopolska region, Poland)." Baltica 29, no. 2 (2016): 79–92. http://dx.doi.org/10.5200/baltica.2016.29.08.

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The article identifies the effects of human activity on groundwater chemistry in the regional aquifer system located in the Wielkopolska region (western Poland). It was documented using statistical methods, that the main process influencing the groundwater chemistry is connected to contamination. The impact of contamination is evident in regions without sewers and where the aquitard is relative thin. Chloride and sulphatewere found most influenced by pollution from surface sources. Total hardness is also sensitive, but its behavior is controlled by geogenic processes as well. Factor analyses a

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Jawi, Nada, M., Najla, Bint Sasud Al-Saud, Othman Y. Alyahyawy, and Salah E. M. Abo-Aba. "Water Contamination and Disinfection: A Review." Journal of Pioneering Medical Sciences 14, no. 2 (2025): 96–102. https://doi.org/10.47310/jpms2025140215.

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Worldwide, one of the biggest concerns for water quality is the contamination of water resources by water-borne pathogens and the diseases that result from it. An increasing number of recent publications attest to the need for studies that synthesize knowledge from multiple fields, covering comparative aspects of pathogen contamination and unify them in one place in order to present and address the problem as a whole. These publications also demonstrate the growing interest in controlling water-borne pathogens in water resources. Contamination arises from pathogens (bacteria, viruses, parasite

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Anggoro, Dito, Setyo Budhi, Agus Purnomo, and Dorothea Vera Megarani. "Evaluation of ultraviolet-C lamps sterilization in veterinary operating theatre." ARSHI Veterinary Letters 3, no. 4 (2019): 75–76. http://dx.doi.org/10.29244/avl.3.4.75-76.

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Abstract (sommario):

Ultraviolet (UV) lamp is the simplest method for sterilizing operating theatre. This method is effective, easily operated, and does not require high cost. Furthermore, there were several studies of microorganism contamination in the air and surface at human operating theatre. However, studies in veterinary operating theatre related to the effectiveness of UV light on sterilization process is still limited, especially in Indonesia. Bacterial contamination samples were collected three times each in three different conditions: A) before surgery and without UV, B) before surgery but UV was already

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Low, Andrew J., Adam G. Koziol, Paul A. Manninger, Burton Blais, and Catherine D. Carrillo. "ConFindr: rapid detection of intraspecies and cross-species contamination in bacterial whole-genome sequence data." PeerJ 7 (May 31, 2019): e6995. http://dx.doi.org/10.7717/peerj.6995.

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Abstract (sommario):

Whole-genome sequencing (WGS) of bacterial pathogens is currently widely used to support public-health investigations. The ability to assess WGS data quality is critical to underpin the reliability of downstream analyses. Sequence contamination is a quality issue that could potentially impact WGS-based findings; however, existing tools do not readily identify contamination from closely-related organisms. To address this gap, we have developed a computational pipeline, ConFindr, for detection of intraspecies contamination. ConFindr determines the presence of contaminating sequences based on the

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Barnes, C. W., and L. J. Szabo. "A Rapid Method for Detecting and Quantifying Bacterial DNA in Rust Fungal DNA Samples." Phytopathology® 98, no. 1 (2008): 115–19. http://dx.doi.org/10.1094/phyto-98-1-0115.

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Abstract (sommario):

Bacterial DNA contamination of rust fungal DNA can be a significant problem for sequencing the rust fungus. Sequence assembly is much more difficult if the sequence contigs are mixed with bacterial sequence. A quantitative real-time polymerase chain reaction (qPCR) assay was developed to quantify bacterial DNA within rust fungal DNA samples and the results were compared with those obtained from traditional CFU counts. Real-time PCR showed higher values of DNA contamination than CFU. However, the ranking of samples from low to high for bacterial contamination was consistent between the methods.

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Maia, Raysa Costa, Renata Gomes de Brito Mariano, and Roberta Dalvo Pereira da Conceição. "Technological Overview of Contamination and Bioremediation by Necrochorume in Cemeterial Soils and Aquifers." Revista de Gestão Social e Ambiental 16, no. 3 (2022): e03095. http://dx.doi.org/10.24857/rgsa.v16n3-010.

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Abstract (sommario):

Purpose: Aiming to map the scientific and technological production involving the contamination and bioremediation of this compound, a technological prospection study was conducted based on articles published in the last 20 years, in the Scopus and Web of Science databases.  Theoretical framework: Necrochorume is a liquid derived from human decomposition, with a high contaminating potential and presenting a serious health hazard.  Method/design/approach: The study was carried out using 5 keywords and their combinations, which were divided into 2 groups and treated using

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46

Na, Jonghyun, Taekseon Ryu, Joonmyoung Kim, Hansuk Kim, Manjae Kwon, and Yongsung Joo. "A Bayesian Spatial Contamination Model." Korean Data Analysis Society 24, no. 3 (2022): 919–31. http://dx.doi.org/10.37727/jkdas.2022.24.3.919.

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Abstract (sommario):

In environmental research, it is often the case that to cluster observations into environmentally polluted and natural groups is an important issue. The Bayesian contamination model which adopts a multivariate mixture regression model has been developed in that it aims to cluster observations and estimate the average amount of pollution. However, because the Bayesian contamination model does not take spatial correlations between observations into consideration, a Bayesian spatial contamination model is proposed. A simulation study was conducted showing that the proposed model has an advantage

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Bhatnagar, D., K. Rajasekaran, M. Gilbert, J. W. Cary, and N. Magan. "Advances in molecular and genomic research to safeguard food and feed supply from aflatoxin contamination." World Mycotoxin Journal 11, no. 1 (2018): 47–72. http://dx.doi.org/10.3920/wmj2017.2283.

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Abstract (sommario):

Worldwide recognition that aflatoxin contamination of agricultural commodities by the fungus Aspergillus flavus is a global problem has significantly benefitted from global collaboration for understanding the contaminating fungus, as well as for developing and implementing solutions against the contamination. The effort to address this serious food and feed safety issue has led to a detailed understanding of the taxonomy, ecology, physiology, genomics and evolution of A. flavus, as well as strategies to reduce or control pre-harvest aflatoxin contamination, including (1) biological control, us

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Haque, Md Asrarul. "Contamination of Soil, Water and Vegetation by Copper, Lead and Zinc Ore Mining and Smelting at Khetri and Zawar (India)." Journal Geological Society of India 30, no. 5 (1987): 451–58. http://dx.doi.org/10.17491/jgsi/1987/300512.

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Abstract (sommario):

Abstract Soil, water and plant samples were collected from Khetri where copper mining and smelting are preformed and from Zawar where lead-zinc ores are mined and concentrated. Khetri samples were analysed for copper and Zawar samples were analysed for lead and zinc. The samples analysed showed contamination in both the localities. There is sufficient evidence to show that mining and related activities were responsible for contaminating soil, water and vegetation. Smelting of ore caused higher degree of contamination. Effluent from smelting operations on mixing with natural water bodies made t

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49

Balarak, Davoud, Masomeh Ebrahimi, Mohammad Jafari Modrek, Edris Bazrafshan, Amir Hossein Mahvi, and Yousef Mahdavi. "Investigation of Parasitic Contaminations of Vegetables Sold in Markets in the City of Tabriz in 2014." Global Journal of Health Science 8, no. 10 (2016): 178. http://dx.doi.org/10.5539/gjhs.v8n10p178.

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Abstract (sommario):

<p>Parasitic diseases are among the most common problems in developing countries. Various parasitic forms such as cysts, larvae and eggs of the parasite are transmitted orally through the consumption of vegetables. So, the aim of this study was to evaluate parasitic contamination of fresh vegetables consumed in the city of Tabriz. This cross-sectional study was conducted for 3 months in 2014 in Tabriz. In this study, 1620 samples from 10 kinds of vegetables (leeks, basil, mint, chives, radishes, parsley, lettuce, watercress, tarragon and coriander) were collected from 54 vegetable shops.

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Stolk, LM. "Drug contamination." Ge-Bu 121-122, no. 11-12 (2020): 1. http://dx.doi.org/10.35351/gebu.2020.11-12.20.

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