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77 articles for “chemicals”
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Research ArticleOpen accessIn the abstractWater Characteristics Assessment, Bioaccumulation and Health Risk Evaluation of Possible Ingestion of Toxic and Essential Metals in Chromidotilapia guntheri Sourced from Ada River, West AfricaTunde Ohiokhioya Thaddeus Imoobe, Eugene Iragboghie Okhakhu, Osikemekha Anthony AnaniThe water ecosystem has been acclaimed to be polluted with various chemicals that may pose possible risks to the biota therein and affect the end consumers who ingest them via the food chain system. This study evaluates the water characteristics, bioaccumulation and non-carcinogenic risk potentials in the ingestion of toxic metals like (Cu, Fe, Zn, Mn and Pb) in Chromidotilapia … …OnLine Journal of Biological Sciences, Vol. 24, Issue 3 · 18 Mar 2024 · 4,772 accessesView PDFCite
Research ArticleOpen accessIn the abstractHistochemical Study of Immature Blackbuck Pancreas in Al-Najaf, IraqWaleed J. A. Al-Kelaby, Zahraa S. M. Al Kaabi, Hany Akeel Al-Hussaniy et al.The histological makeup of the pancreas in immature male and female Iraqi blackbuck (Caprus hircus) has not been well described. We aimed to describe the histological features of the pancreas in immature male and female Iraqi blackbuck. Samples were collected from 20 immature male and female animals' pancreas, obtained from the Al-Najaf slaughterhouse. The samples were fixed in 10% neutral … …American Journal of Animal and Veterinary Sciences, Vol. 19, Issue 1 · 11 Dec 2023 · 5,225 accessesView PDFCite
Research ArticleOpen accessIn the abstractWheat Straw Processing Effect Study on Their Enzymatic Hydrolysis by Trichoderma viride and Aspergillus аwamori CulturesZhaksylyk Makhatov, Bakhytzhan Kedelbayev et al.The effect of wheat straw processing on the enzymatic hydrolysis of the straw by Trichoderma viride and Aspergillus awamori cultures is of importance for the bioconversion of renewable biomass. The study aimed to determine the optimal wheat straw processing method that would result in the highest yield of fermentable sugars from straw. A combination of physical and chemical methods was … …OnLine Journal of Biological Sciences, Vol. 24, Issue 1 · 20 Oct 2023 · 5,085 accessesView PDFCite
Research ArticleOpen accessIn the abstractUse of Novel Triphenyltin (IV) Dithiocarbamate Compounds in Assessing the Cytotoxicity and Mode of Cell Death of Acute Lymphoblastic Leukemia Cell Lines, CCRF CEM (CCL-119)Normah Awang, Nur Hidayah Hasrin, Nurul Farahana Kamaludin et al.Chemotherapy and radiotherapy are often used to treat Acute Lymphoblastic Leukemia (ALL). However, the resistance problem of treatment using the current drug in ALL patients has decreased the effectiveness of such therapy. Therefore, a study needs to be conducted to identify the potential of new anticancer agents. Organotin (IV) dithiocarbamate, an organometallic compound, causes toxic effects on cancer cells in … …OnLine Journal of Biological Sciences, Vol. 23, Issue 2 · 10 Mar 2023 · 5,159 accessesView PDFCite
Research ArticleOpen accessIn the abstractField Evaluation of a Pneumatic Prototype Machine Designed to Control the Colorado Potato Beetle in Potato CropsSaad Almady, Mohamed KhelifiThe Colorado Potato Beetle (CPB), Leptinotarsa decemlineata Say, 1824, is a major insect pest of potato plants. It can greatly reduce potato yields if left uncontrolled. The most effective method of controlling the CPB is to apply chemical insecticides during its life cycle. However, the CPB tends to develop resistance to chemicals. Therefore, its control is difficult. This has prompted … …American Journal of Agricultural and Biological Sciences, Vol. 17, Issue 1 · 26 Dec 2022 · 6,403 accessesView PDFCite
Research ArticleOpen accessIn the abstractStudy of the Thermodynamic Equilibrium of Fragrance Mixtures, Limonene, Linalool and Geraniol, using the Unifac and Cosmo-Sac Models and the Estimation of their Combined Properties in Binary, Ternary and Quaternary MixturesLavínia Mota Cristianismo Silva, José Izaquiel Santos da Silva, Rogério Alexandre Alves de Melo, Edilailsa Januário de MeloPerfume is a non-ideal complex mixture of chemicals originating from the extraction of essential oils and these oils are volatile components extracted from plants, some animals, or even synthesized. For this reason, to compose a fragrance, there are countless possibilities to combine one element and another, which makes the process slow and expensive. Therefore, in this study, we will combine … …American Journal of Engineering and Applied Sciences, Vol. 15, Issue 2 · 14 Jun 2022 · 7,454 accessesView PDFCite
Review ArticleOpen accessIn the abstractNASA Sees First in 2018 the Direct Proof of Ozone Hole RecoveryRelly Victoria Petrescu, Raffaella Aversa, Antonio Apicella, Florian Ion Tiberiu PetrescuFor the first time, scientists have shown through direct observations of the ozone hole by a satellite instrument, built by NASA's Jet Propulsion Laboratory in Pasadena, California, that levels of ozone-destroying chlorine are declining, resulting in less ozone depletion. Measurements show that the decline in chlorine, resulting from an international ban on chlorine-containing human-produced chemicals called Chlorofluorocarbons (CFCs), has resulted … …Journal of Aircraft and Spacecraft Technology, Vol. 2, Issue 1 · 22 Jan 2018 · 10,688 accessesView PDFCite
Review ArticleOpen accessIn the abstractConversion of Carbon Dioxide: Opportunities and Fundamental ChallengesSajeda A. Al-Saydeh, Syed J. Zaidi, Muftah H. El-NaasThe rising atmospheric levels of carbon dioxide is one of the most urgent challenges facing societies nowadays. There is also great potential in energy carriers and other materials from CO2, with many challenges to overcome. The way to reduce greenhouse gas emissions should be using carbon free sources that do not generate carbon dioxide to the atmosphere. This article reviews … …American Journal of Engineering and Applied Sciences, Vol. 11, Issue 1 · 17 Jan 2018 · 7,630 accessesView PDFCite
Review ArticleOpen accessIn the abstractNanoboticsRelly Victoria Virgil PetrescuNanobotics (or Nanorobotics) is a field of emerging technology that deals with the creation of robots whose components are typically the size of a molecule or nanometer (10-9 meters). More specifically, nanorobotics refers to nanotechnology, an engineering discipline that designs and builds nanorobots that have movement, processing and transmission characteristics, program execution, etc. Nanomachines are largely in the research and … …Journal of Mechatronics and Robotics, Vol. 4, Issue 1 · 19 Jul 2020 · 7,783 accessesView PDFCite
Research ArticleOpen accessIn the abstractKnowledge of Chemical Hazards and Prevalence of Darkroom Diseases among Darkroom Technicians and Assistants in Southeast, NigeriaMark C. Okeji, Felicitas U. Idigo, AngelMary C. Anakwue, Uloma NwoguDarkroom technicians and assistants are exposed daily to x-ray processing chemicals. These chemicals contain known irritants which can cause some disease symptoms to its handlers. The aim of this study was to assess the knowledge of chemical hazards and prevalence of darkroom diseases among darkroom technicians and assistants in Southeast, Nigeria. The study adopted cross-sectional survey. A total of 105 … …Current Research in Medicine, Vol. 6, Issue 2 · 24 Nov 2015 · 8,126 accessesView PDFCite