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Book
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El análisis químico en la agricultura se aplica a diferentes propósitos, por ejemplo: para diagnosticar el estado nutricional del tejido vegetal, para evaluar la calidad de agua para riego, para diagnosticar nutricionalmente un sustrato, en el análisis de extracto celular de peciolo, análisis de extracto de pasta saturada, de soluciones nutritivas,...
Article
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This study aims to evaluate the pharmacological potential and standardize the bioactive compounds of Ngoc Linh Ginseng (Panax vietnamensis) as a candidate phytopharmaceutical. The study was conducted throughout 2024 using a multidisciplinary approach, including ultrasonic extraction, chemical analysis, and pharmacological tests. Samples were collec...
Article
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We report the first comprehensive spectroscopic analysis of the Galactic planetary nebula (PN; plural: PNe) IC 4642, using low-dispersion integral field unit (IFU) observations. The objective of this study is to derive detailed physical conditions, chemical compositions, ionization structures, and morphological characteristics of the PN. The physic...
Article
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Background Radix Bupleuri, derived from the dried roots of Bupleurum chinense DC., is a well-documented phytomedicine in global pharmacopoeias and a common constituent in herbal formulations. While previous studies have hinted at regional variations in the chemical composition of B. chinense, a comprehensive understanding of its morphological, gene...
Article
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The demand for advanced photonics technology is increasing rapidly, fueled by the necessity for high‐performance, cost‐effective optical information processing systems extending into the quantum domain. Silicon, benefiting from its mature fabrication processes, stands as an ideal platform. However, its inherent indirect bandgap leads to inefficient...
Article
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O café é um recurso valioso mundialmente, devido a sua rica composição química e seu alto valor econômico. A presente pesquisa propõe o estudo do óleo fixo extraído do resíduo do preparo da bebida de café (borra de café), que geralmente é descartado. Foi avaliada a constituição química do óleo fixo extraído bem como, o potencial, antioxidante, larv...
Article
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The polynitroazole plays an important role in the design of high‐energy density materials. A series of nitrogen‐rich salts based on trinitromethyl‐substituted 1H‐1,2,4‐triazole bridging nitropyrazole was prepared. These newly synthesized salts were fully characterized by chemical analysis (infrared, NMR, and mass spectroscopy) as well as experiment...
Article
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Introducción: Las enfermedades transmitidas por los alimentos o también conocidas como ETA’S han sido un problema de salud pública a lo largo de los años, provocando una serie de enfermedades por medio de una mala manipulación e higiene de las personas que los preparan. En esta situación las bacterias conocidas como las causantes de las patologías...
Conference Paper
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A conceptual profile consists of different zones, which represent distinct ways of thinking about a concept and are applied in different contexts. In this work, a particular way of thinking about the fundamental chemical concept of chemical analysis, the “chemical analysis as everyday practices” zone, is described as an illustrative example of the...
Chapter
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The field of multifunctional magnetic nanoparticles is rapidly expanding and these fascinating nanoparticles have a significant impact on analytical chemistry. The discovery and application of multifunctional magnetic nanoparticles is revolutionizing the way we approach complex chemical analysis. This book provides a comprehensive guide to multifun...
Article
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Research subject. Quartzites from Different Sites of the East Sayan Quartz-Bearing Region. Aim. The aim of this study is to apply machine learning methods to effectively classify quartzite samples by their chemical composition, including the identification of key trace elements such as manganese and the detection of geochemical differences between...
Article
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The continued expansion of cities in economic, population and geographical terms leads to significant environmental and infrastructural pressures, including the need for efficient municipal solid waste (MSW) management. This research focuses on the characterization of MSW generated in the city of Skopje and the investigation of its thermo-physical...
Article
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Biological sex determination is essential for analyzing human skeletal remains in archaeology, anthropology, and forensic science. This study investigates whether Raman spectroscopy of intact human dental enamel can be used as a non-destructive method for sex estimation. Orthogonal partial least squares discriminant analysis (OPLS-DA) and logistic...
Article
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Nanohole array-based surface plasmon resonance (SPR) sensors have emerged as highly sensitive devices capable of detecting subtle changes in refractive index (RI) across a wide range. In this work, a novel copper-graphene nanohole array sensor with a silicon dioxide (SiO2) substrate is presented, designed to enhance sensitivity and maintain stabili...
Article
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This study investigates groundwater quality in the Paghman area located in the fourth sector of Kabul, Afghanistan. The primary objective is to identify the natural causes of drinking water contamination, including toxic compounds and materials that leach from soluble rock formations, sediments, and soil into groundwater at infiltration points. We...
Article
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Effects of waterlogging (WL) stress and its mitigation by nitrate (NO3–) were investigated in a commercial cucumber hybrid line. WL resulted in a shift toward anaerobic metabolism in roots and development of adventitious roots (ARs). In WL stressed roots exodermal, extracellular H2O2 accumulation and protein nitration were detected. Shoot growth wa...
Article
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This study investigates the microbial diversity and FODMAP content of sourdough samples from Turkey's Marmara Region, collected in summer and winter. The primary objective was to identify lactic acid bacteria (LAB) strains capable of reducing FODMAP levels, which are associated with digestive disorders such as irritable bowel syndrome (IBS). The re...
Article
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Red calliandra (Calliandra calothyrsus) is a leguminous tree native to Indonesia. This species can serve as a renewable alternative energy source to replace coal. Calliandra wood is highly flammable and can be utilized as biomass energy, offering a quality comparable to coal's. PT Semen Padang employs red calliandra as an alternative to coal in cem...
Article
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Background The impact of phosphate mining development on surface water pollution and ecological disasters is a highly concerned issue in global mining activities. With the increasing demand for phosphate fertilizers, the environmental impact of phosphate mining is becoming increasingly prominent, especially in the Mabian Jinyang area of Sichuan Pro...
Article
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In an attempt to minimize the adverse impacts of rapid climate change, such as forest fires and droughts, the development of cloud seeding technologies has increasingly attracted attention. However, the effects of cloud seeding have not been verified directly. In the present study, chemical analysis of precipitation samples was explored as a method...
Article
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Egg roll consumption in 2022 reached 22,185%/capita/year. The purpose of the study was to study the effect of the comparison of purple sweet potato flour with porang tuber flour on chemical analysis, sensory quality, and hedonic. This study used a 1-factor Complete Randomized Design, namely the comparison of the concentration of purple sweet potato...
Article
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Crispy cookies are processed pastries that are usually made from wheat flour. Flour in making crispy cookies can use other alternatives, namely local food-based flour such as mung bean flour and milk banana flour. The researcher aims to determine the chemical and sensory characteristics and obtain the best treatments according to chemical analysis...
Article
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The interaction of calcium dihydrogen phosphate with copper, zinc, and cobalt sulfate salts in dilute solutions (0.01 M) at 303.15 and 353.15 K, depending on the Ca(H2PO4)2:MSO4 ratio, was studied. It is found that at a molar ratio of 1:1, the pH, electrical conductivity, viscosity, and density have extreme values, which indicates a change in the c...
Article
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In order to improve the identification efficiency, strengthen quality control, and realize the quick traceability and adulteration analysis of Citri Reticulatae Pericarpium (CRP) and Xinhui's Citri Reticulatae Pericarpium (XCRP, geoauthentic herb), UHPLC‐QTOF‐MS combined with “digital identity card” was used to explore digital identification of CRP...
Article
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This study presents a sustainable approach to recycling exhausted etching solutions through ferritization, using various activation methods and aeration rates. The process transforms industrial waste into valuable magnetic sorbents, supporting circular economy principles. Structural and chemical analysis of the ferritization products revealed the f...
Article
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Resumen El objetivo del trabajo fue evaluar el efecto del proceso de cultivo de dos cepas nativas dePleurotus djamor (RN81 y RN82) y una cepa extranjeraPleurotus pulmonarius (RN2) sobre la biodegradación de la paja de arroz, rastrojo de maíz y tuza de maíz en términos de la composición química y degradabilidad ruminal. Estos forrajes fueron manejad...
Article
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The objective was to compile and analyze soil chemical parameters related to the use of different phosphorus sources and microbial inoculants. A sample of a Dystrophic Red-Yellow Latosol was collected in the 0–0.20 m layer, in an agricultural area at Fazenda Nascente, MT. Two arbuscular mycorrhizal fungi, Ceratobasidium sp. and Tulasnella sp. gener...
Preprint
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Hyperspectral X-rays imaging holds promise for three-dimensional (3D) chemical analysis but remains limited in simultaneously capturing phase and absorption information due to complex setups and data burdens. We introduce quantitative X-ray schlieren nanotomography (XSN), a simple, fast, and high-resolution X-ray phase imaging technique that overco...
Article
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The processing of granitoids as part of the production of stone elements or crushed aggregates generates significant amounts of fine-grained rock wastes in the form of solids or slurries. Problems with their rational management cause processing plants to most typically store them in waste dumps. Only a small part of these wastes is used in the cons...
Article
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Highlights What are the main findings? Optimal design aspects and optical parameters for Inner Layers Chemical Analysis of Fresh Produce with transmission Raman spectroscopy What is the implication of the main finding? Non-destructive chemical analysis of fresh produce inner layers; Technology for detecting internal properties and problems in agri...
Article
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This review explores the antioxidant, phytochemical, and biochemical properties of plants and fruits, focusing on the analytical techniques used to assess these attributes. Plants are rich in bioactive compounds such as vitamins, carotenoids, phenolics, flavonoids, anthocyanins, chlorophyll, crude protein, total soluble solids, pH, dry matter,...
Article
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The present study was conducted to study the development of biscuits with the addition of various levels of wheat bran from selected hard wheat varieties during the year 2022-23 at the laboratory of the Institute of Food Sciences and Technology, Sindh Agriculture University, Tandojam. This study aimed to analyze the wheat grain quality of selected...
Article
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Eggs, recognized as a “complete nutritional food”, constitute a crucial source of high-quality protein and maintain an essential position in China’s animal protein supply system. However, extended storage periods induce biochemical degradation, including protein denaturation, air cell expansion, and microbial growth, substantially affecting both fo...
Article
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This study investigates the reaction mechanism between lime powder and molten cast iron as a sustainable alternative desulfurization agent for the cast iron industry. The approach involved metallography and chemical analysis of the slag that emerged from a laboratory‐scale lime‐based desulfurization process conducted in inert and open‐atmospheric t...
Conference Paper
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Dembo Dam was assessed to establish the Dam's current condition, create baseline information, and develop the irrigation scheme design and layout. The key components examined were the crest, embankment (upstream and downstream), spillway, reservoir, stilling basin, penstock, outlets, catchment area, instrumentations, and irrigation scheme. Irrigabl...
Article
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Machine bolts installed on the bonnet of OS&Y (outside screw & yoke) deluge gate valve 6″, were found cracked or broken in service. The gate valves are part of the petrochemical plant fire protection system. The result of chemical analysis of the received bolts samples, indicates that their composition corresponds to a TWIP steel, having high manga...
Article
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The article indicates materials of the results of scientific research conducted in the marginal lands of Karabuga village of Dosnazarov massif of Karauzyak district in Republic of Karakalpakstan. This research determined the influence of some helophytes on the soil’s reclamation status. Phenological observations were also made to monitor the plant’...
Article
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A comprehensive review on the challenges and methods for determining the stereochemistry of type-I polyketide synthase-derived natural products, highlighting multiple techniques and their case studies.
Article
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The paper presents the reasons for the appearance of a dense network of well-maintained springs on the territory of the Chuvash Republic. Materials on the study of the quality of spring water in the northern part of the Chuvash Republic are presented. Parameters such as the physical properties of water, chemical composition, environmental condition...
Article
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Meat is an essential source of nutrients in the human diet and a component of global food security. In the context of a growing demand for functional and healthy foods, the addition of non-meat ingredients, such as dietary fibres, is a promising strategy for improving the quality of meat products. This review aimed to identify and synthesise the av...
Preprint
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Oxygenated organic molecules (OOMs), which are low-volatility intermediates produced via volatile organic compound (VOC) oxidation, play a critical role in secondary organic aerosol (SOA) formation through gas-to-particle conversion. Despite recent advancements in OOM characterization, the high complexity of OOM spectra poses a significant challeng...
Article
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A pitaia (Hylocereus polyrhizus) é uma cactácea que vem ganhando destaque devido às suas propriedades benéficas à saúde e sua ampla aplicabilidade. Contudo, sua comercialização ainda enfrenta desafios, principalmente em razão de sua alta perecibilidade, evidenciando a necessidade do estudo de tecnologias que minimizem esse problema. Esse estudo tev...
Chapter
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The chemical characteristics, spatiotemporal variation, and source apportionment of PM2.5 emitted from ship exhausts in Kaohsiung Harbor and its impact on Metro Kaohsiung are investigated. The highest PM2.5 concentrations were observed in winter, and followed by fall, spring, and summer, primarily driven by poor dispersion conditions during the Nor...
Article
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This paper introduces a novel optical cell design that integrates ultraviolet-visible (UV-vis) and laser-induced breakdown spectroscopy (LIBS) for comprehensive vapor phase chemical analysis at temperatures up to 450 °C. The motivation behind this research is to overcome the limitations of existing vapor phase spectroscopy techniques by providing a...
Article
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This study investigated the therapeutic mechanism of Rehmanniae Radix Praeparata (RRP) in treating blood deficiency syndrome (BDS) through integrated chemical analysis and pharmacological validation. UPLC-Q-TOF-MS identified chemical components of Rehmanniae Radix (RR) and RRP, with network pharmacology analysis suggesting AKT1 and NOS3 in the PI3K...
Article
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As a major contributor to industrial energy consumption and carbon emissions, the kiln industry faces increasing pressure to adopt cleaner energy sources. This study investigated the combustion characteristics, redox processes in celadon firing, product quality, and pollutant emissions for an industry furnace with methanol and liquefied petroleum g...
Article
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Cross-sectional transmission electron microscopy has been used to characterize the morphological features of thin boron nitride films grown on single-crystal boron-doped diamond substrates (lattice mismatch of 1.36%) using electron cyclotron resonance-plasma enhanced chemical vapor deposition. The effect of gas precursor concentration, growth tempe...
Article
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The use of biomass in co‐combustion systems using fluidized bed technology is considered a viable alternative to reduce the emission of pollutants. The herein study presents an experimental analysis to determine the technical feasibility of using run‐of‐mine (ROM) coal and its waste combined with biomass in a combustor of bubbling fluidized bed in...
Article
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Background Insecticide-treated nets (ITNs) are washed 20 times as part of experimental hut trials to simulate the loss of active ingredient (AI) occurring over their intended 3-year lifespan and estimate insecticidal durability. The ability of the 20-wash method to predict the end-of-life performance of ITNs has not been empirically validated. Met...
Article
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Järntillverkning vid Sigiriya, Sri Lanka En storskalig tillverkningsprocess ca. 100 BC till 400 AD kartlagd med kemisk analys av malm, slagg, flussmedel och ugnsväggar
Article
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The peak load boiler (PLB) is a heat production facility that uses SA178 Gr. A and SA516 Gr. 70 low-carbon steels as tube and plate materials, respectively. Recently, failures were frequently observed near plugged tubes due to water leakage, raising concerns about corrosion mechanisms and their impact on tube durability. This work investigates the...
Research
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Dit rapport is een descriptieve neerslag van een floristische inventarisatie, in de nazomer van 1974 in de beken, sprengen en bronbossen van de oostelijke en zuidelijke Veluwezoom. Speciale aandacht is gegeven aan de verspreiding van zeldzame(re) vaatplanten en mossen. Een aantal hiervan is karakteristiek voor bronmilieus, hetgeen een hoge natuurwa...
Article
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Objective: To study the effect of different organic manure practices and biofertilizers on NPK content and uptake, as well as soil properties after the harvest of mung bean. Methodology: A field experiment was conducted during the Zaid season of 2024 at the Research Farm, School of Agriculture, OM Sterling Global University, Hisar. The study compri...
Article
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The article deals with the methodological and practical aspects of conducting a forensic commodity examination of cigarettes, which are a specific segment of the consumer market. The main attention is paid to the issues of classification of tobacco products, determination of their quality and compliance with the established standards. The examinati...
Conference Paper
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Identifying the most important problems of cultivating some of the soils of Umm Al-Ghazlan, west of Sebha- Libya This study was conducted in Um Al-Ghazlan area located in the western side of Sebha city. Four profiles were chosen to represent the soil of the region. The morphological properties of the soil showed a clear similarity between them, suc...
Article
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Dengue, a vector-borne virus-related contamination transferred by the Aedes mosquito. Malaria remains a main transferrable infection that affects billions of people, once diseased with Plasmodium organisms. The COVID-19 (coronavirus disease 2019) that took over the world in December 2019 has everlasting distressing effects on people's lives worldwi...
Article
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Cupuaçu (Theobroma grandiflorum (Willd. ex Spreng.) K. Schum.), a fruit native to the Amazon, is widely used in the food industry. However, it generates large amounts of shell and seed residues after processing, which are generally discarded inappropriately. We characterized cupuaçu residues to determine their potential as substrates for seedling p...
Book
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The forensic investigation book is a comprehensive guide that discusses the processes and methods used to uncover crimes and present evidence in court. The book begins by reviewing the concept of forensic investigation and its importance in the legal system, highlighting the role of investigators in collecting and analyzing evidence to achieve just...
Article
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Euphorbia tirucalli L., conhecida no Brasil como “aveloz” ou “cachorro pelado”, possui histórico de uso tradicional atribuído a propriedades terapêuticas, como ações antissifilítica, antitumoral e anti-helmíntica. Pesquisas relatam ainda potenciais atividades bactericida, larvicida e moluscicida, relacionadas à presença de metabólitos secundários....
Article
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This study aims to analyze the nutrient composition of black soil obtained from Salem District and evaluate its therapeutic suitability and potential application in Mud therapy for treating Type 2 Diabetes Mellitus, as an adjunct therapy in the course of Diabetes management. The selected soil sample underwent a comprehensive analysis, revealing sig...
Article
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Um dos principais motivos para o crescimento da indústria das cerâmicas brasileiras se deve aofato da enorme quantidade de matérias-primas naturais que existem no país, por isso é de sumaimportância a escolha correta e ideal das matérias-primas. Dessa forma, o trabalho tem por objetivoestudar a potencialidade do pó das rochas muscovita monzogranito...
Article
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La investigacion formulada presenta como el principal beneficio hallar las consecuencias de una inadecuada operación y mantenimiento para un sistema de abastecimiento de agua potable, como tambien la relación con la calidad del agua y la salud de la población en la localidad de Curhuaz. La metodología es de naturaleza aplicada, descriptiva. Tras el...
Article
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Erythroxylum coca, commonly known as “coca” is a plant native to the South American Andes, recognized for its high alkaloid content and potential medical and nutritional applications. This study aimed to characterize the chemical, nutritional, and cytotoxic properties of two E. coca morphotypes (Palo and Caimo) cultivated by Colombian indigenous co...
Article
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This study aims to characterize the properties of the saline wa- ters from an old saltpan at the Ria de Aveiro, and assess its potential use in skin treatments. Eight water samples were collected from two different areas of an open-air salt SPA, during four different climatic seasons be- tween 2020 and 2021. Physichochemical parameters of the water...
Article
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Received: 10 September 2024 In the current study, local bauxite clays from the Ubaid Formation (Early Jurassic) were investigated and assessed as an alternative to imported bauxite in manufacturing firebricks and varying quantities of flint clays from the Al-Husayniya Formation (Early Jurassic). After preparing the raw material samples, several pro...
Article
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Solid waste treatment and resourceization critically depend on waste characterization. Heavy metals and critical raw materials are found as trace elements in solid waste dumps, and their reliable quantification plays a critical role for decision risk regarding effective waste management. The reliable quantification of trace elements is a very chall...
Article
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The assessment of grape ripeness is pivotal for optimizing harvest timing and ensuring high-quality fruit production. Traditional methods, relying on manual sampling and chemical analysis, are laborious and expensive. This study proposes an innovative approach combining Visible/Near-Infrared (VIS/NIR) spectroscopy with machine learning techniques—s...
Article
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This study aimed to evaluate the quality of various milk samples through comprehensive chemical and microbiological analyses. Four distinct sets of data were interpreted, focusing on fat content, solids-not-fat (SNF), water content, adulterants, preservatives, and the presence of pathogenic bacteria. The chemical analyses involved comparing the mea...
Article
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Recent developments in atomic spectroscopy techniques enable rapid quantitative analysis of nuclear material through the implementation of data science techniques. Atomic emission spectra of such materials are often convoluted, owing to their complex makeup and electronic structures. Consequently, performing a chemical analysis using such spectra r...
Preprint
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This paper presents the results of three weeks of aerosol sampling at the Henties Bay coastal site in Namibia during the Aerosols, Radiation and Clouds in southern Africa (AEROCLO-sA) field campaign in August–September 2017. The campaign coincided with a transition period between two synoptic regimes and corresponded to a significant change in the...
Preprint
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The main methods for monitoring the damage of the anti-seepage layer of leachate are to collect water and soil samples from the landfill site, to determine the content of pollutants through indoor chemical analysis, and ground geophysical prospecting.On the basis of these traditional environmental geological exploration methods, this paper uses GIS...
Article
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Hybridization is frequent in oaks and may drive various evolutionary and ecological effects on involved plant populations and their associated species. Quercus castanea is a species of Mexican red oak that has served as a valuable model for examining the effects of hybridization events. We used a multimarker approach to characterize the morphologic...
Article
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This article presents the results of the chemical analysis of the soil before the biological recultivation of degraded areas. The research site was carefully selected, and relevant information was gathered from various literature sources and online databases. The extent of anthropogenic impact was assessed, and the soil types within the area were a...
Article
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The objective of this study was to produce and evaluate briquettes from residues of corn crops and from its association with cotton crop residues, rice husk or elephant grass for energetic use. Data on moisture, immediate chemical analysis, bulk density, higher calorific value (HCV), energetic density, volumetric expansion and mechanical strength w...
Article
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This study aimed to develop a cost-effective and nutritious gluten-free cake enriched with rice bran for introduction. Gluten-free cakes were prepared using rice flour (RF), maize flour (MF), and chickpea flour (CF) in different proportions. Following organoleptic evaluation, the T3 combination (40% RF, 40% MF, and 20% CF) was selected to incorpora...
Article
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Nuclear spin hyperpolarization utilizing parahydrogen has the potential for broad applications in chemistry, catalysis, biochemistry, and medicine. This review examines recent chemical and biochemical insights gained using parahydrogen-induced polarization (PHIP). We begin with photoinduced PHIP, which allows the investigation of short-lived and ph...
Article
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Organic fertilizers have been reported to increase the yield and quality of crops as well as soil properties. Production of organic based fertilizers help to convert wastes which would otherwise become a nuisance to the environment to environmentally friendly and agriculturally useful materials. The research work was done using different materials...
Article
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A química aplicada à biotecnologia agroindustrial, também conhecida como biotecnologia verde, utiliza princípios químicos para desenvolver soluções que aumentam a produtividade, reduzem impactos ambientais e melhoram a qualidade dos alimentos. O objetivo desse estudo é demonstrar a relevância da química na biotecnologia agrícola, abordando sua cont...
Article
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This paper aims to support stakeholders in the sustainable construction sector by exploring the potential of unexamined aggregates from five distinct origins: the Jandol River, the Swat River, the Panjkorha River, the Kitkot Drain, and the Shavey Drain situated in Malakand division, North Waziristan, Pakistan, concerning Alkali–Silica Reaction (ASR...
Article
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Non-destructive and rapid grape maturity detection is important for the wine industry. The ongoing development of hyperspectral imaging techniques and deep learning methods has greatly helped in non-destructive assessing of grape quality and maturity, but the performance of deep learning methods depends on the volume and the quality of labeled data...
Technical Report
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In dit rapport worden veldgegevens, chemische analyses en diatomeeënanalyses vermeld van 24 kleine, onvoltooide projecten binnen en buiten Nederland, voornamelijk uit de periode1977 - 1993. Ze kunnen dienen als historisch achtergrondmateriaal voor monitoring en beheermaatregelen / Field data, chemical analyses and diatom analyses from 24 small, unf...
Article
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Introduction Cholesterolosis bulbi is an ocular condition characterized by the accumulation of cholesterol crystals in the vitreous cavity. This case describes the development of anterior chamber cholesterolosis bulbi secondary to retinal capillary hemangioma. Case Presentation A 26-year-old female, tested negative for von Hippel-Lindau (VHL) synd...
Research
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A remarkable mafic-ultramafic dismembered ophiolitic units have been discovered for the first time in West Darfur State, West Sudan. Field survey coupled with petrographical studies and whole-rock chemical analysis to identify the origin of these new rock units. Scattered serpentinized mafic-ultramafic ophiolite components consist of dunite, layere...
Article
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In this work, a detailed chemical and crystallographic analysis of basic logic and a few selected intermediate RESET states of Ge-rich Ge-Sb-Te-based (GST) phase-change memories (PCM) is presented, with a particular focus on the understanding of the microscopic mechanisms underlying their electrical characteristics. We demonstrate that Ge-rich GST-...
Article
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A cafeína é um alcaloide presente em diversas bebidas não alcoólicas e tem efeitos estimulantes no sistema nervoso central. Sua ingestão moderada pode trazer benefícios como aumento de alerta e concentração, mas o consumo excessivo pode causar problemas como arritmias e distúrbios do sono. A quantificação de cafeína em bebidas é essencial para gara...
Article
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Introduction Various studies were conducted focused on the coal-to-gas (CTG) impacts on urban PM 2.5 during its implementation. However, the continuity of CTG effectiveness on PM 2.5 control in the post CTG remained unclear, especially in rural area, retarding the further emission-control policy optimization. To address this gap, we examined the wi...
Article
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To determine the chiral molecular enantiomer concentrations (i.e., MD and ML), we theoretically proposed an approach that contains a chiral hyperbolic metamaterial (HMM) biosensor and two deduced analysis databases and obtained the MD and ML based on a single circular dichroism (CD) spectrum by reading its peak wavelength and intensity. Employing f...
Article
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The hydrogeochemical study (major ions, heavy elements and water quality) is carried out for a section of the Euphrates River water extending between the Hindiya Barrage and Nasiriya City for a distance of 383 km. This is done by choosing eight sites for water samples (in dry and wet periods). Chemical analysis for water samples is conducted for ma...
Article
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Paulowin tomentosa is one of the newly introduced species to Iraq. It is among the fastest growing species in the world and the production of wood material; to provide data on the anatomical and chemical characteristics of the wood and to determine its suitability for the manufacture of pulp and paper, several 7-year-old trees were selected from pa...
Article
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Baikal skullcap or Chinese (Scutellaria baicalensis L.) is an interesting plant with promising medicinal properties; however, traditional cultivation methods are time-consuming, and yield variations can be significant; callus culture is considered one of the solutions to overcome these limitations because the callus culture provides an effective, a...
Article
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Urbanization accelerates innovation and economic growth but imposes significant ecological challenges, particularly to aquatic biodiversity and ecosystem functionality. Among urban stressors, pesticide-driven chemical pollution represents a critical yet underrecognized global threat. Quantifying the causes and consequences of pesticides on biodiver...
Article
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Raman spectroscopy is a widely used technique in several contexts, including chemical analysis, materials characterization, and catalysis. However, to exploit the high capacities of this technique, signal enhancement is needed. For this purpose, several methodologies can be used, and those known as surface enhanced Raman scattering (SERS), or reson...
Article
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Clay content is a key factor in evaluating soil dispersibility, but few previous studies are found in literature of the dispersive mechanism of low clay content loess. This study evaluates the dispersibility of such soil-collected from Guyuan, Ningxia-using five commonly used methods and a comprehensive evaluation method. We examine the factors of...
Article
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The dominance in the current Oriental tobacco market in Bulgaria is largely identified with the demand and supply of “Krumovgrad”, “Basma” (GR) and “Katerini” (GR) ecotypes. The aim of the study was to characterize the technological profile and quality level of those tobaccos in two production regions, based on the complex assessment of chemical, v...
Article
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Electronic cigarettes (e-cigarettes) are devices designed to vaporize a liquid solution, offering an alternative to traditional tobacco consumption. The identification, detection, and analysis of the compounds present in these devices are crucial for understanding their impacts on health and the environment. Numerous studies have identified a diver...
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