Relevant bibliographies by topics / Complex substances

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Complex substances'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Complex substances"

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Todosiichuk, T. S., V. V. Klochko, Ya I. Savchuk, and O. P. Kobzysta. "New Antibiotic Substances of the Streptomyces albus Enzybiotic Complex." Mikrobiolohichnyi Zhurnal 81, no. 5 (2019): 62–72. http://dx.doi.org/10.15407/microbiolj81.05.062.

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Lyublinskiy, S. L., I. N. Lyublinskaya, E. M. Koloskova, et al. "Technological Aspects of Obtaining Liposomes Containing of a Complex of Biologically Active Substances Isolated from Deer Musk." Journal Biomed 17, no. 4 (2021): 18–37. http://dx.doi.org/10.33647/2074-5982-17-4-18-37.

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In order to preserve and increase the biological effectiveness of biologically active substances isolated from deer musk, we studied technological aspects of obtaining a substance of lipid-stabilized stable nanoparticles from deer musk. The stability of the obtained substance was evaluated. It was found that homogenization under high pressure is an optimal approach to obtaining biologically active substances from deer musk. The modes of preparation of a liposomal form of biologically active substances with predetermined dispersion parameters (average particle diameter 250 ± 100 nm, polydispers
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Olesia, Bilous, Sytnik Natalia, Bukhkalo Svitlana, et al. "DEVELOPMENT OF A FOOD ANTIOXIDANT COMPLEX OF PLANT ORIGIN." Eastern-European Journal of Enterprise Technologies 6, no. 11 (102) (2019): 66–73. https://doi.org/10.15587/1729-4061.2019.186442.

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An antioxidant complex has been developed for use in oils, fats, and food products, which must be enriched with biologically active substances of plant origin. Rational conditions have been examined for obtaining of water-ethanol extracts from plant raw materials: oak bark, eucalyptus leaves, and green tea leaves. An antioxidant has been derived capable of preventing the oxidation of fat-containing products, preserving their high nutritional value. The antioxidant substances of natural origin will make it possible to create products, balanced in composition, with prolonged shelf life while pre
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., Dharuvika, Priya R. Avinash, and Robin Victor. "Neurocognitive Impairment in Opioid Dependence Syndrome." Indian Journal of Behavioural Sciences 27, no. 01 (2024): 75–79. http://dx.doi.org/10.55229/ijbs.v27i1.11.

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Substance use is a chronic condition characterized by remissions and relapses.1 Substance use disorder, commonly referred to as addiction, is a complex and chronic medical condition characterized by the harmful or hazardous use of substances. It affects the brain and behavior, leading to an inability to control one’s use of these substances despite the negative consequences.
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Sosin, Denis Vladimirovich, Andrey Viktorovich Yevseyev, Edgar Andreyevich Parfenov, and Petr Dmitriyevich Shabanov. "Dynamics of energy metabolism under action of new selenium containing metal-complex substance." Reviews on Clinical Pharmacology and Drug Therapy 12, no. 1 (2014): 19–25. http://dx.doi.org/10.17816/rcf12119-25.

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The value of standard energy metabolism had measured on rats after intragastral (oral) administration of the new selenium containing metal-complex substance πQ1983 in dose 100 mg/kg. The well-known antihypoxant amthizol was used as a substance of comparison in a same dose. The substance πQ1983 administered 90 min before study was shown to decrease the activity of energy processes in organism from 194.4 ± 0.7 kcal/day/kg to 74.5 ± 0.5 kcal/day/kg but effect of amthizol was not reliable. It was revealed also that both substances (πQ1983 significantly, amthizol slightly) decreased the oxygen cons
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Tustin, Richard D. "Review of Studies Regarding Assessment of Families Where Children Are at Risk of Harm Due to Parental Substance Misuse." International Journal of Environmental Research and Public Health 22, no. 4 (2025): 612. https://doi.org/10.3390/ijerph22040612.

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Questions arise about links between the use of substances and violence, especially when parents misuse substances and there is potential to expose children to family violence. Background. The review has four aims: identify research into the harmful impacts of parental substance use on children; identify policies in Australia about the risks from parental substance misuse; identify interventions to manage unsafe parental substance use; and review practices involving confidentiality and collaboration when a parent has multiple complex needs. Method. The paper provides a rapid review of the liter
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Ovsyanikov, Vikt V., E. R. Beznosova, L. Z. Tsypko, L. I. Filins’kyy, and Vl V. Ovsyanikov. "Determination of dielectric permeability of substances by electromagnetic waveguide method." Journal of Physics and Electronics 28, no. 1 (2020): 85–90. http://dx.doi.org/10.15421/332014.

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A method for determining the complex permittivity of substances by the electromagnetic (EM) waveguide method in the microwave range using electrodynamics and the theory of multilayer dielectric structures is considered. The expression for the complex reflection coefficient of an EM wave in a waveguide with a substance sample is studied. Calculations of the dielectric constant of substances are carried out by analytical and numerical methods using computers. To obtain the desired complex permittivity of a substance, we use the relationship between the expression for the reflection coefficient m
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Kronen, John, та Jacob Tuttle. "Composite Substances as True Wholes: Toward a Modified Nyāya-Vaiśeṣika Theory of Composite Substances". Canadian Journal of Philosophy 41, № 2 (2011): 289–316. http://dx.doi.org/10.1353/cjp.2011.0015.

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In the Categories Aristotle defined substance as that which is neither predicable of nor in another. In saying that a substance is not predicable of another, Aristotle meant to exclude genera and species from the category substance. Aman is a substance but not man. In saying that a substance is not in another, Aristotle meant to exclude property particulars from the category. A man is a substance, not his color.The Categories treats substances as simples. Though a particular substance, Bucephalus the horse, has parts, it is nevertheless a single entity in the category substance and, hence, inc
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Kolpaksidi, A. P., M. V. Dmitrieva, L. L. Nikolaeva, O. L. Orlova, and I. I. Krasniuk. "Obtaining a Water-soluble Form of Hydrophobic Indolelocarbazole Derivative Using Solubilizer Complex." Drug development & registration 12, no. 1 (2023): 70–75. http://dx.doi.org/10.33380/2305-2066-2023-12-1-70-75.

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Introduction. LHS-1269 is an indolocarbazole derivative with high antitumor activity. Due to the hydrophobic properties of the active substance, the use of organic co-solvents – dimethyl sulfoxide (DMSO) and ethanol – is required to obtain an injectable dosage form (DP). However, the inclusion of organic solvents in the composition of the DF carries a potential risk of side effects as a result of the use of the drug.Aim. Selection of auxiliary substances for obtaining an aqueous solution of hydrophobic indolecarbazole derivative, which allows minimizing the concentration of organic solvents in
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Louw, Kerry-Ann. "Substance use in pregnancy: The medical challenge." Obstetric Medicine 11, no. 2 (2018): 54–66. http://dx.doi.org/10.1177/1753495x17750299.

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Substance use contributes significantly to the global burden of disease. Growing numbers of women use nicotine, alcohol, and illicit substances. Women are the most vulnerable to problematic substance use in their reproductive years. The first 1000 days of life, starting at conception, have been established as a critical window of time for long-term health and development. Substance use in pregnancy is associated with negative pregnancy and child health outcomes. The impact of antenatal substance use on these outcomes needs to be considered within a challenging and complex context. This review
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Dissertations / Theses on the topic "Complex substances"

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Beard, Daniel A. "Advection and diffusion of substances in tissues containing complex vascular networks /." Thesis, Connect to this title online; UW restricted, 1997. http://hdl.handle.net/1773/8015.

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Bouges, Hélène. "Modifications enzymatiques de la composition de mélanges naturels complexes utilisés en parfumerie." Thesis, Université Côte d'Azur (ComUE), 2018. http://www.theses.fr/2018AZUR4024.

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Dans le domaine de la chimie des parfums, l’optimisation des propriétés biologiques et sensorielles de substances naturelles complexes, via la biocatalyse, présente un fort intérêt. Dans un contexte de chimie durable, ces travaux de recherche sont dédiés aux développements de modifications enzymatiques de composés purs, d’extraits et d’huiles essentielles de l’industrie des arômes et parfums. Une étude bibliographique a ainsi été consacrée à la composition des matières premières naturelles, leurs propriétés et les principales voies de biosynthèse des composés présents dans les substances natur
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Spinozzi, Silvia <1987&gt. "New analytical LC-mass spectrometry methodologies for the quali-quantitative determination of natural substances and drugs in complex matrices." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amsdottorato.unibo.it/6997/1/Silvia_Spinozzi_Tesi.pdf.

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This thesis reports an integrated analytical and physicochemical approach for the study of natural substances and new drugs based on mass spectrometry techniques combined with liquid chromatography. In particular, Chapter 1 concerns the study of Berberine a natural substance with pharmacological activity for the treatment of hepatobiliary and intestinal diseases. The first part focused on the relationships between physicochemical properties, pharmacokinetics and metabolism of Berberine and its metabolites. For this purpose a sensitive HPLC-ES-MS/MS method have been developed, validated and u
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Spinozzi, Silvia <1987&gt. "New analytical LC-mass spectrometry methodologies for the quali-quantitative determination of natural substances and drugs in complex matrices." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amsdottorato.unibo.it/6997/.

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This thesis reports an integrated analytical and physicochemical approach for the study of natural substances and new drugs based on mass spectrometry techniques combined with liquid chromatography. In particular, Chapter 1 concerns the study of Berberine a natural substance with pharmacological activity for the treatment of hepatobiliary and intestinal diseases. The first part focused on the relationships between physicochemical properties, pharmacokinetics and metabolism of Berberine and its metabolites. For this purpose a sensitive HPLC-ES-MS/MS method have been developed, validated and u
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Mourne, Richard William. "Lead-210 as a tracer for acidic deposition in areas of complex topography." Thesis, University of Edinburgh, 1993. http://hdl.handle.net/1842/10602.

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This thesis reports an investigation into methods of determining the long term deposition field for atmospheric aerosols in areas of complex topography using the soil inventories of atmospherically derived radionuclides. Measurements of the radionuclides ²¹⁰Pb, ¹³⁷Cs, ¹³⁴Cs and ⁷Be in vegetation and soil have been made at five mountain locations in northern Britain. A description of the field sampling procedure, sample processing and y-ray analysis is given. Loss-on-ignition experiments to determine the organic fraction of sampled soils were also conducted on selected samples. The presence of
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Zimmerman, Wendy Cherie. "Association of Pericentrin with the γ Tubulin Ring Complex: a Dissertation". eScholarship@UMMS, 2004. https://escholarship.umassmed.edu/gsbs_diss/122.

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Pericentrin is a molecular scaffold protein. It anchors protein kinases, (PKB, (Purohit, personal communication), PKC, (Chen et al., 2004), PKA Diviani et al., 2000), the γ tubulin ring complex, (γ TuRC) (Zimmerman et al., 2004), and possibly dynein (Purohit et al., 1999) to the spindle pole. The γ TuRC is a ~ 2 MDa complex which binds the minus ends of microtubules and nucleates microtubules in vitro, (Zheng et al., 1995). Prior to this work, nothing was known about the association of the γTuRC with pericentrin. Herein I report the biochemical identification of a large protein complex in Xeno
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Hjelm, Erica. "A method development for measuring lithium uptake inCaco-2 cells in a complex matrix using MP-AES – Appliedto evaluate the impact of humic acids on lithium uptake." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-77779.

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Lithium, together with hydrogen and helium, were the only elements formed duringthe big bang. Lithium today, is a component in various products, some examples aregrease, ceramics, lithium-ion batteries and medication for bipolar disorder. Eventhough the knowledge of lithium’s interactions with biota and our environment islimited, the use of lithium is increasing. In humans, lithium is primarily absorbed in thesmall intestine through Na-channels. The average daily intake varies a lot, but in1985 it was estimated to range from 650 to 3100 μg for a 70 kg adult, according tointernational studies.
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Li, Nigel. "A study of the kinetic interactions of complex metal ion : humic and magnetite ternary systems." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/a-study-of-the-kinetic-interactions-of-complex-metal-ion--humic-and-magnetite-ternary-systems(a3666dd0-eeee-47fe-90c9-a80925da2f7a).html.

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The sorption of humic acid (HA) and HA size fractions onto magnetite has been studied. There is considerable irreversibility in the interaction of the humic with the magnetite surface, but the presence of Eu3+ ions has no effect on the sorption of humic onto magnetite. The magnitude of the sorption to magnetite increases with HA fraction size for all ionic strengths between 0.01 and 3 mol dm-3. Increasing ionic strength also increases sorption. Asymmetric Flow Field Flow Fractionation analysis of HA sorption to magnetite after 1 day revealed preferential sorption of lower molecular weight mate
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Agbeze-Onuma, Maduka. "Bioremediation of a former manufactured gas plants (FMGP) site contaminated with a complex mixture of heavy metals, organic and inorganic substances using soil washing technique." Thesis, University of Strathclyde, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.502359.

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This study investigated the potential treatability of a representative soil sample, holding a complex mixture of metals, organic and inorganic contaminants, from the site of a Former Manufactured Gas Plant (FMGP) using a combination of soil washing technique and bioremediation. The contaminants treated included a range of heavy metals (lead, chromium, copper, mercury etc), inorganic chemicals (chlorides, sulphates, cyanides etc), and organic compounds (polycyclic aromatic hydrocarbons (PAHs), Gasoline Range Organics (GRO), Diesel Range Organics (DRO), Methyl tertiary butyl ether (MTBE), and be
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Öberg, Mattias U. L. "Health risk assessment of dioxin-like compounds in complex samples /." Stockholm : Karolinska inst, 2003. http://diss.kib.ki.se/2003/91-7349-692-8.

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Books on the topic "Complex substances"

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Deshpande, Abhijit P., Krishnan J. Murali, and Kumar P. B. Sunil. Rheology of complex fluids. Springer, 2010.

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Montana. Hazardous and Solid Waste Bureau. CECRA Program. Draft community relations plan for the Upper Blackfoot Mining Complex. The Program?, 1992.

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Iro, J. E. Static secondary ion mass spectrometry studies of complex toxic substances adsorbed on different subtrates. UMIST, 1998.

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Walsh, Gerald E. Methods for toxicity tests of single substances and liquid complex wastes with marine unicellular algae. Environmental Research Laboratory, Office of Environmental Processes and Effects, Office of Research and Development, U.S. Environmental Protection Agency, 1988.

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1941-, Greenberg Arnold H., ed. Invertebrate models: Cell receptors and cell communication. Karger, 1987.

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V, Ramamurthy, and Schanze Kirk S, eds. Multimetallic and macromolecular inorganic photochemistry. M. Dekker, 1999.

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Litvin, Feliks, Lyudmila Satina, Ravil' Hatypov, Galina Mikulinskaya, Nikita Pen'kov, and Konstantin Neverov. Molecular spectroscopy. Fundamentals of theory and practice. INFRA-M Academic Publishing LLC., 2022. http://dx.doi.org/10.12737/1870280.

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The textbook is an introduction to the theory and practice of spectroscopy in the ultraviolet, visible and infrared regions. The presentation of the theoretical foundations is accompanied by a detailed guide on the practical use of spectroscopy for quantitative and qualitative analysis of substances and reactions in simple and complex systems. Attention is paid to modern methods of infrared spectroscopy with Fourier transform (FTIR), intermolecular energy transfer (FRET), linear dichroism of complex objects.&#x0D; It is intended for a wide range of biologists, chemists, students and postgradua
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Office, General Accounting. Nuclear materials: Plutonium processing in the nuclear weapons complex : fact sheet for the Chairman, Environment, Energy, and Natural Resources Subcommittee, Committee on Government Operations, House of Representatives. U.S. General Accounting Office, 1992.

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Office, General Accounting. Nuclear materials: Plutonium processing in the nuclear weapons complex : fact sheet for the chairman, Environment, Energy, and Natural Resources Subcommittee, Committee on Government Operations, House of Representatives. GAO, 1992.

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Office, General Accounting. Nuclear health and safety: Summary of problem areas within the DOE nuclear complex : report to the chairman, Subcommittee on Regulation and Business Opportunities, House Committee on Small Business. The Office, 1988.

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Book chapters on the topic "Complex substances"

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Ruether, Feelly, and Gabriele Sadowski. "Solubility of Complex Natural and Pharmaceutical Substances." In Industrial Scale Natural Products Extraction. Wiley-VCH Verlag GmbH & Co. KGaA, 2011. http://dx.doi.org/10.1002/9783527635122.ch2.

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Georgis, R., and J. Kelly. "Novel Pesticidal Substances from the Entomopathogenic Nematode—Bacterium Complex." In Phytochemicals for Pest Control. American Chemical Society, 1997. http://dx.doi.org/10.1021/bk-1997-0658.ch010.

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Bilen, Serra. "Antimicrobial Analysis Methods of Bee Products." In Methods of Biochemical Analysis of Bee Products. Nobel Tip Kitabevleri, 2024. http://dx.doi.org/10.69860/nobel.9786053359326.5.

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Bee products are complex substances known for centuries for their healing power. Based on information from old and new medical literature, its wound healing potential, high osmotic pressure and antimicrobial effect against both infectious disease agents and drug-resistant microorganisms due to the interaction of its multiple components have been proven.
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Sohns, J. T., D. Gond, F. Jirasek, H. Hasse, G. H. Weber, and H. Leitte. "Embedding-Space Explanations of Learned Mixture Behavior." In Proceedings of the 3rd Conference on Physical Modeling for Virtual Manufacturing Systems and Processes. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-35779-4_3.

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AbstractData-driven machine learning (ML) models are attracting increasing interest in chemical engineering and already partly outperform traditional physical simulations. Previous work in this field has mainly focused on improving the models’ statistical performance while the thereby imparted knowledge has been taken for granted. However, also the structures learned by the model during the training are fascinating yet non-trivial to assess as they are usually high-dimensional. As such, the interpretable communication of the relationship between the learned model and domain knowledge is vital
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Savinkov, Alexey, Sergey Borisov, Marina Semenenko, Ksenia Semenenko, and Elena Kuzminova. "Study of Hepatoprotective Properties of the Complex of Biologically Active Substances in Hepatopathies of Young Pigs." In Fundamental and Applied Scientific Research in the Development of Agriculture in the Far East (AFE-2021). Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-91405-9_6.

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Textor, Mark. "From Substance and Accident to Complex and Element." In The Disappearance of the Soul and the Turn against Metaphysics. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198769828.003.0004.

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The anti-metaphysical orientation of empirical psychology inspired and provided a model for the criticism of the metaphysics of substance and accident. Lotze and Stumpf, Avenarius and Mach argue for different reasons that the notion of substance is an instrument to simplify our view of the world that seems initially advantages but then gives rise to pseudo-questions about the nature of substance and the distinction between reality and appearance. Just as the soul needs to go, substance needs to go! But common sense and, following it, philosophy had conceived of reality in terms of substances a
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Locke, John. "Of our Complex Ideas of Substances." In An Essay concerning Human Understanding. Oxford University Press, 2008. https://doi.org/10.1093/owc/9780199296620.003.0030.

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"Chapter 9. Novel Psychoactive Substances." In Pharmacotherapy for Complex Substance Use Disorders: A Practical Guide, edited by Thanh Thuy Truong. American Psychiatric Association Publishing, 2023. https://doi.org/10.1176/appi.books.9781615379989.lg09.

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Locke, John. "Of Collective Ideas of Substances." In An Essay concerning Human Understanding. Oxford University Press, 2008. https://doi.org/10.1093/owc/9780199296620.003.0031.

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§ 1. Besides these complex Ideas of several single Substances, as of Man, Horse, Gold, Violet, Apple, etc. the Mind hath also complex collective Ideas of Substances; which I so call, because such Ideas are...
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"Polysubstance use." In Oxford Handbook of Addiction Medicine, 3rd ed., edited by John B. Saunders, David J. Nutt, Susumu Higuchi, et al. Oxford University PressOxford, 2024. http://dx.doi.org/10.1093/med/9780192844088.003.0018.

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Abstract Chapter 18 of Addiction Medicine outlines the epidemiology, consequences, and management of polysubstance use. Polysubstance use is prevalent and varies over time. It is associated with proportionately more ill health, psychological distress, and diminished treatment outcomes than single substance use. Reasons for combining drugs are described. Different combinations of psychoactive substances occur from limited-range clusters to extended range. Presentations that involve combinations of alcohol, tobacco, cannabis, psychostimulants, or prescription drugs, may be complicated by new psy
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Conference papers on the topic "Complex substances"

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Stepanova, Natalya, Tansu Gazieva, Natalya Arkhipova, Samir Elbahnasawy, and Suryana Fomina. "RISK ASSESSMENT OF CHEMICAL SUBSTANCES IN THE ATMOSPHERIC AIR AS INDICATOR OF THE ROAD TRAFFIC IMPACT ON THE CHILDREN?S HEALTH IN THE CITY OF KAZAN." In 24th SGEM International Multidisciplinary Scientific GeoConference 2024. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/5.1/s20.31.

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Assessment of non-carcinogenic risk for the child population health from chemical substances taken with the motor vehicle exhaust gases in 4 districts of the city of Kazan based on the monitoring data from FSFHI �The Center of Hygiene and Epidemiology in the Republic of Tatarstan� for the period from 2015 to 2021 was carried out. The average annual concentrations of chemical substances exceeded the allowable level of standards (MAC) from 2.32 to 9.96 of MAC in all zones. The value of the total daily dose on the inhalation route of the substances� intake with atmospheric air (I) made 1.09 � 10.
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POPA, Catalin Miha, Emilian GHICIOI, Florin Adrian PAUN, and Dan Sorin GABOR. "ANALYSIS OF LABORATORY METHODS USED FOR THE DETERMINATION OF THE MINIMUM IGNITION ENERGY IN THE CASE OF AIR/FUEL DUST MIXTURES." In 24th SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/1.1/s03.28.

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The continued development of human society, from the technical and economic point of view, has led to the need for the increasingly widespread use in the various existing industrial branches of chemical substances and compounds in the form of combustible dust and dust. The processing, handling and storage of these pulverized substances often leads to the emergence of complex explosive mixtures whose explosiveness characteristics cannot be assimilated with the data available in the literature. In places where the probability of the occurrence of potentially explosive atmospheres generated by th
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de Araujo, Adriana, Zehbour Panossian, Neusvaldo L. de Almeida, Alberto S. Junior, and Clay M. Martins. "Organic Coatings for Corrosion Protection of Transformers in Underground Chambers." In CORROSION 2012. NACE International, 2012. https://doi.org/10.5006/c2012-01338.

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Abstract Underground electrical transformers are frequently submitted to a very aggressive environment because of the stagnated water of underground chambers which is heated and contaminated. In Brazil, carbon steel structures of underground transformers are usually protected with coal tar paints in order to ensure their reliability. However, the use of this type of paints is being strongly restricted because coal tar contains complex mixtures of polycyclic aromatic hydrocarbons which contain many toxic and potentially carcinogenic substances. Aiming at replacing coal tar based paints by an en
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Videla, Héctor A., and Liz Karen Herrera. "The Influence of Microorganisms on the Corrosion and Protection of Metals. an Overview." In CORROSION 2011. NACE International, 2011. https://doi.org/10.5006/c2011-11218.

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Abstract Microorganisms are able to drastically change the electrochemical conditions at the metal/solution interface by biofilm formation including bacterial consortia and extracellular polymeric substances (EPS) as the main components. The presence of biofilms generally facilitates the initiation of localized corrosion but this effect can be reversed to corrosion inhibition. Microbial corrosion inhibition and its counter process, microbiologically influenced corrosion (MIC) are rarely linked to a single mechanism or to a single species of microorganisms. In recent years microbial inhibition
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Shishkov, Toma, and Emil Dimitrov. "SOIL PROPERTIES OF CHROMIC LUVISOLS FROM KREMIKOVTSI AREA IN SOFIA MUNICIPALITY." In 24th SGEM International Multidisciplinary Scientific GeoConference 2024. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/3.1/s13.24.

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The result of the survey carried out on the territory of the Sofia-city municipality is presented, in relation to the application of the Program for the protection, sustainable use and restoration of soils as a limited and non-renewable natural resource. The obtained data on the Chomic Luvisols nearby the area of Kremikovtsi debate the basic physical and chemical soil characteristics. The priority task on the soil protection in the region aimed at the sustainable development, restoration and improvement of the soil resource. To fulfill this aim, samples from soil profile and additional sites f
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Maksimyuk, Vera A., and Ekaterina I. Reshetnik. "Prospects for the use of biologically active substances obtained from secondary resources of the logging industry." In Agro-industrial complex: problems and prospects of development. Far Eastern State Agrarian University, 2024. https://doi.org/10.22450/978-5-9642-0637-8-157-163.

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The article presents the prospects for the use of biologically active substances obtained during the processing of waste from the logging industry. Their physiological effects on the body are described. The data of biologically active substances on organoleptic, physico-chemical and microbiological parameters, as well as basic safety indicators are presented.
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Abdullina, D., K. Valeev, and R. Safin. "ENERGY RESOURCE-SAVING PLANT FOR EXTRACTION OF BIOLOGICALLY ACTIVE SUBSTANCES." In Modern machines, equipment and IT solutions for industrial complex: theory and practice. FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov, 2021. http://dx.doi.org/10.34220/mmeitsic2021_175-179.

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As know, all wood material is recycled only half, and the rest of it remains unused. In practice, wood waste is most often plowed or burned, at a time when such wood is a valuable natural raw material that can compensate for the needs of a number of sectors of the economy. In this regard, the problem of recycling waste from the woodworking industry is very relevant today. Wood waste contains a large amount of substances capable of exhibiting biological activity. In particular, such biologically active substances include betulin, which is found in birch bark, which, due to its many advantages,
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Tomenko, D., E. Aksenov, and Lyudmila Novikova. "PHENOLIC COMPOUNDS OF CONIFEROUS TREES." In Modern machines, equipment and IT solutions for industrial complex: theory and practice. FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov, 2021. http://dx.doi.org/10.34220/mmeitsic2021_351-356.

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The paper discusses the classification, structure and properties of natural phenolic compounds found in conifers wood species of Russia. The reasons for the variety of detected phenolic compounds (more than 2000) are considered, including the type and conditions of plant growth, environmental factors, as well as methods for extraction of substances. Coniferous extractives include monomeric, dimeric and polymeric phenolic compounds in bound and free form, and their content differs significantly for various species and parts of a woody plant. Depending on the polarity of the solvent used (water,
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Kapustin, Maxim, Sergei Piskov, Igor Rzhepakovsky, Hanna Chubarova та Andrei Antonovich. "Wound healing activity of curcuminoids:β-cyclodextrin complex nanostructures". У INTELLIGENT BIOTECHNOLOGIES OF NATURAL AND SYNTHETIC BIOLOGICALLY ACTIVE SUBSTANCES: XIV Narochanskie Readings. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0177712.

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Demidenko, Galina A. "The effect of the presence of heavy metals on seed germination and morphometric parameters of wheat seedlings Novosibirskaya-15." In Agro-industrial complex: problems and prospects of development. Far Eastern State Agrarian University, 2024. https://doi.org/10.22450/978-5-9642-0629-3-54-59.

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Heavy metals (for example, zinc and copper) can be not only harmful substances for plants, but also useful trace elements. Trace elements are involved in physiological and biochemical processes in plants. Heavy metal salts, as trace elements, have a positive effect on seed germination and the development of wheat seedlings.
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Reports on the topic "Complex substances"

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Wolf, Eva. Chemikalienmanagement in der textilen Lieferkette. Sonderforschungsgruppe Institutionenanalyse, 2022. http://dx.doi.org/10.46850/sofia.9783941627987.

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The World Summit on Sustainable Development in Johannesburg in 2002 set the goal of minimising the adverse impacts of chemicals and waste by 2020. This goal has not been achieved yet. Therefore, other approaches are needed to prevent, minimise, or replace harmful substances. One possible approach is this master thesis which deals with the challenges that the textile importer DELTEX is facing with regard to a transparent communication of chemicals used and contained in the product in its supply chain. DELTEX is bound by legal regulations and requirements of its customer and must ensure that the
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Schutt, Timothy C., and Manoj K. Shukla. Computational Investigation on Interactions Between Some Munitions Compounds and Humic Substances. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/39703.

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Humic acid substances (HAs) in natural soil and sediment environments effect the retention and degradation of insensitive munitions compounds and legacy high explosives (MCs): DNAN, DNi- NH4+, nMNA, NQ, NTO (neutral and anionic forms), TNT, and RDX.A humic acid model compound has been considered using molecular dynamics, thermodynamic integration, and density functional theory to characterize the munition binding ability, ionization potential, and electron affinity compared to that in the water solution. Humic acids bind most compounds and act as both a sink and source for electrons. Ionizatio
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Dashtey, Ahmed, Patrick Mormile, Sandra Pedre, Stephany Valdaliso, and Walter Tang. Prediction of PFOA and PFOS Toxicity through Log P and Number of Carbon with CompTox and Machine Learning Tools. Florida International University, 2024. http://dx.doi.org/10.25148/ceefac.2024.00202400.

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Perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) are two major groups of PFAS will be subjected to the Maximal Contamination Concentration (MCL) of 4 ng/l in drinking water to be implemented by the U.S. EPA by 2025. How to accurately predict toxicity of PFAS with varied carbon chain length is important for treatment and sequential removal from drinking water. This study presents Quantitative Structure and Activity Relationship (QSAR) models developed through both linear regression and two order regression. Log P is compiled from reference and carbon content is counted as
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Kampmeier, Mareike, Jens Greinert, Aaron J. Beck, et al. Monitoring ecological consequences of marine munition in the Baltic Sea 2023, Cruise No. AL603, 3rd – 16th October 2023, Kiel (Germany) – Kiel (Germany), „MecoMM-BS - II“. GEOMAR Helmholtz Centre for Ocean Research Kiel, Germany, 2024. https://doi.org/10.3289/cr_al603.

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The cruise AL603 ("MecoMM II") is one of three research cruises that take place in 2023 and 2024 and are an integral part of the ongoing research project CONMAR (conmarmunition. eu/), which deals with the ecological impact of dumped munitions in the German Baltic Sea. These expeditions ensure complete monitoring over several years. During this expedition, substances released from munitions on the seabed will also be analysed beyond national borders in order to better assess the pollution of the Baltic Sea. Several German research institutions are involved in the AL603 cruise, and there are con
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Sangiampongsa, Pisanu. Welfare policy and social justice : policy result and attitude toward policy change. Chulalongkorn University, 2005. https://doi.org/10.58837/chula.res.2005.31.

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The extent and substance of social welfare policy have been a contentious issue. Academic discipline, culture, and values all contribute to the argument for and against it. Within the issue is also the question regarding the amplitude of government’s role in social welfare policy, which is a form of state intervention. The issue is not only philosophical, but also requires resource relocation. Since the social resource is scare, its relocation means taking some from certain individuals and giving it to others. Since the appropriate level of welfare is hard to determine, this study proposes to
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Ermishina, E. Yu, N. A. Belokonova, and N. A. Naronova. Electronic training course "Ecological Chemistry". Федеральное государственное бюджетное образовательное учреждение высшего образования "Уральский государственный медицинский университет" Министерства здравоохранения Российской Федерации, 2024. https://doi.org/10.12731/er0861.12122024.

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The electronic training course ""Ecological Chemistry"" is compiled in accordance with the requirements of the Federal State Educational Standard of Higher Education as an additional professional program for the specialties: 31.05.01 - General Medicine, approved by the order of the Ministry of Science and Higher Education of the Russian Federation dated August 12, 2020 No. 988 (as amended by No. 1456 dated November 26, 2020), 31.05.02 - Pediatrics, approved by the order of the Ministry of Education and Science of the Russian Federation dated August 12, 2020 No. 965, 31.05.03 Dentistry, approve
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Gut Reactions: Xenobiotics and the Microbiome Workshop Report London, UK 2024. Food Standards Agency, 2025. https://doi.org/10.46756/sci.fsa.hew928.

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A wide range of substances in the diet come into contact with the intestinal microbial community (the gut microbiome) and therefore have the potential to influence this community and sometimes, in turn, host health. The implications that this has for the assessment of the risks to human health of chemicals and other components of the diet and how this can be determined are currently under debate; as yet there is no clear consensus. In this workshop we set out to explore the complex current state of the science of the microbiome pathophysiology and the possible impact of xenobiotics on host-mic
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Needs and risks facing the Indonesian youth population. Population Council, 1998. http://dx.doi.org/10.31899/rh1998.1049.

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Youth are the leaders of tomorrow, but right now they face a formidable collection of problems that will determine the quality of their future lives and the lives of us all. Education, jobs, substance abuse, violence, sexuality, and marriage are examples of adolescent issues that demand special attention from researchers, youth activists and advocates, parents, and policymakers. In attempting to address these complex issues, we must be willing to confront ignorance, controversy, and cultural obstacles. Clear and focused policy and strategies must play a basic role in tackling these issues faci
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Ethical impact assessment. A tool of the Recommendation on the Ethics of Artificial Intelligence. UNESCO, 2023. http://dx.doi.org/10.54678/ytsa7796.

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The Recommendation on the Ethics of AI provides a framework to ensure that AI developments align with the promotion and protection of human rights and human dignity, environmental sustainability, fairness, inclusion and gender equality. It underscores that these goals and principles should inform technological developments in an ex-ante manner. To support effective implementation, UNESCO developed two instruments, the Readiness Assessment Methodology (RAM) and the Ethical Impact Assessment (EIA). The EIA is proposed to procurers of AI systems, as this is one of the main channels in which algor
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