Particle Shape-Based Evaluation of the Leaching of Sphalerite Ore in Dilute Acid Solutions by Mert Terzi, İlgin Kurşun Ünver, Tuğba Deniz Tombal

“…In the experiments with nitric acid (HNO3), sulfuric acid (H2SO4), and hydrochloric acid (HCl), particle size (75-106-150 µm), solids ratio (5-10-15-20-25%), leaching time (30-60-120-180-240 min), acid dosage (0.25-0.5-1-2-5 M) and pulp temperature (30-40-50-60-70 oC) parameters were analyzed. Optimum results were obtained under the conditions of 75 µm particle size, 15% solids ratio, 120 min leaching time, 0.5 M acid dosage, and 50°C pulp temperature for H2SO4; 106 µm particle size, 25% solids ratio, 60 min leaching time, 0.5 M acid dosage, and 70°C pulp temperature for HCl; 75 µm particle size, 20% solids ratio, 60 min leaching time, 1 M acid dosage, and 50°C pulp temperature for HNO3. …”
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Evaluation of Toxicological Risks and Effects of Microplastics on Nile Tilapia (Oreochromisniloticus) under in Vitro Laboratory Conditions by Macarius Pancras Mtega, Matobola Joel Mihale, Kessy Fidel Kilulya

“…The digestion of fish gills and intestines involved 10 mL of 10% (w/v) KOH solution and incubation at 65oC for 24 hours. Engulfed microplastics were determined using stereo microscope and At-IR spectrophotometer for confirmation. …”
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Catalytic Synthesis of Diethyl Carbonate from Carbon Dioxide using Catalyst KI/EtONa with Propylene Oxide as Dehydration Agent and Process Optimization Based on Box-Behnken Design by Lintang Alivia Anggerta, Firman Kurniawansyah, Rizky Tetrisyanda, Gede Wibawa

“…As confirmed with the BBD method, an initial pressure of CO2 40 bar, 190oC, and a 3-hour reaction were expected to perform optimized processing.…”
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Coordination Dynamics and Coordination Mechanism of a New Type of Anticoagulant Diethyl Citrate with Ca2+ Ions by Jin Han, Jun-Fa Xue, Meng Xu, Bao-Song Gui, Li Kuang, Jian-Ming Ouyang

“…These characteristics indicated that O in –COOH and C–O–C of Et2Cit was coordinated with Ca2+ in a bidentate manner with 1 : 1 coordination proportion; that is, complex CaEt2Cit was formed. …”
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Phase diagram determination and thermodynamic modeling of the Cu-Mg-Si system by Zhao J., Zhou J., Liu S., Du Y., Tang S., Yang Y.

“…Phase equilibria at 500 and 700 oC of the Cu-Mg-Si system were determined using X-ray diffraction analysis (XRD). …”
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A green approach to recovering lithium and cobalt from spent lithium-ion batteries using dilute HCl solution mixed with H. sabdariffa flower extract as a leaching agent by Tran T.T., Nguyen T.H., Nguyen P.D., Lee M.S.

“…The optimum conditions for the leaching of these metals were 90% (v/v) of extract, 0.5 mol/L HCl, 10 g/L pulp density, 90oC, and 2.0 hours. 100% Li(I) and 91.3% Co(II) were leached under the optimum leaching conditions. …”
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Characterization and Properties of Activated Carbon Prepared from Tamarind Seeds by KOH Activation for Fe(III) Adsorption from Aqueous Solution by Sumrit Mopoung, Phansiri Moonsri, Wanwimon Palas, Sataporn Khumpai

“…The surface functional groups of activated carbon are O–H, C=O, C–O, –CO3, C–H, and Si–H. The XRD result showed high crystallinity coming from a potassium compound in the activated carbon. …”
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Application of rice shell activated carbon for reduction of chemical oxygen demand limit and adsorption of iron from abattoir wastewater by Robinson Davi Udo, Samuel Ayegu Tsebam, Kolade Olawale Samson, Precious Nya Umo, Adeniyi Solomon Lawal, Juliet Gordon, Oluwaseun Fetuata, Ibrahim Ademola Fetuga, Olabode Thomas Olakoyejo, Antonio Marcos de Oliveira Siqueira

“…The contact period of 10, 20, 30, 40, 50, and 60 min, the dosage of 0.1, 0.2, 0.3, 0.4, 0.5, and 0.6g, and the temperature of 20, 40, 60, 80, and 100oC were evaluated for the Fe bio-adsorption as well as COD limits reduction in wastewater obtained from abattoir at constant agitation of 200rmp and potential hydrogen level of 5 for all the runs. …”
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Proceso del cuidado enfermero aplicado en un adulto con insuficiencia respiratoria por COVID-19 by Iris Villasante Montes, Lisbeth Jazmín Espejo Ávila, Mercedes Consuelo Guerra Pacheco

“…Caso clínico: Paciente mujer adulto de 39 años, no tiene antecedentes de enfermedades anteriores, obesa, con IMC 38, resultados de test rápido SARS-CoV-2: Positivo IgM (+) IgG (+), al examen físico presenta P/A: 145/84, FC: 118 X’, FR 38X’, T: 38,8 ºC, SpO2: 88 % (máscara de reservorio a 15 litros), consciente y orientada, deshidratada, con taquipnea y con hipoventilación a la auscultación. …”
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Ajuste de tiempos de inmersión en técnicas combinadas de deshidratado de duraznos by D.P. URFALINO

“…Transcurridos dichos intervalos de tiempo, los duraznos se escurrieron, se enjuagaron y se deshidrataron a 55o C hasta 20% de humedad final en un horno eléctrico. …”
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Variabilidad de la viabilidad y vigor de lotes de semillas de soja con presencia de simientes verdes pertenecientes a cultivares de distintos grupos de maduración producidos en dos... by C. GALLO, J.M. ENRICO, R. CRAVIOTTO, M. ARANGO

“…Temperaturas superiores a los 32 ºC combinadas con estrés hídrico durante el llenado de granos de soja pueden provocar la aparición de semillas verdes. …”
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An Experimental Study on Bond Behavior of Rebar and High-Performance Fiber Reinforced Cementitious Composite (HPFRCC) at High Temperatures by Salim Karimpour, Rahmat Madandous, Malek Mohammad Ranjbar, Habib Akbarzadeh Bengar

“…From 19 mix designs, four superior ones which experienced lower reduction in compressive strength at 400 and 600 oC was selected in order to investigate the bond behavior of rebar in HPFRCC specimens using direct pullout and RILEM beam tests. …”
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Investigation of Hydro-Geochemical Characteristics of Groundwater In Port Harcourt City, Nigeria: Implication for Use and Vulnerability by HO Nwankwoala, GJ Udom

“…The average temperature of the groundwater samples is 29 oC, The water is slightly acidic with pH values between 4.28 – 7.72. …”
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Effect of Nd:YAG Laser with/without Graphite Coating on Bonding of Lithium Disilicate Glass-Ceramic to Human Dentin by Amjad Abu Hasna, Stephanie Semmelmann, Fernanda Alves Feitosa, Danilo De Souza Andrade, Franklin R Tay, Cesar Rogério Pucci

“…The glass-ceramic specimens were bonded to dentin with a dual-cured resin cement and stored in distilled water for 24 h at 37ºC. Tensile testing was performed on a universal testing machine (10 Kgf load cell at 1 mm/min) until failure. …”
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Estudio molecular de anemia falciforme. Frecuencia de los alelos βS y βC en pacientes estudiados en el año 2010 by Ismael Aramís Cervera García, Marisleivis García Heredia, Teresa Collazo Mesa

“…<br /> <strong>Métodos</strong>: estudio descriptivo, de 270 fetos de parejas portadoras de los alelos S y/o C, procedentes de diferentes provincias de Cuba, cuyas muestras fueron enviadas desde los Centros Provinciales de Genética al laboratorio de Biología Molecular del Centro Nacional de Genética Médica. …”
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Hydrochemistry of a Tropical harbor: Influence of Industrial and Municipal inputs by Balogun Kayode James, Ladigbolu Ismail Adejare, Olaji Ebenezer Dayo

“…Surface water of the Harbour was characterized by fairy constant temperature with a range of ( 25.67 – 28.33oC), alkaline pH (7.70 – 8.42mg/l), brackish salinity (7.00 – 22.47PSU), BOD5 and COD values of (0.80 – 3.33mg/l) and (6.10 – 11.30mg/l) respectively, total dissolved solids(6.00 – 19.00mg/l), dissolved oxygen content (4.13 – 7.60mg/l) which fell below FEPA limit of 10mg/l, alkalinity (8.00 – 15.33mg/l), low Nitrate value (0.08 – 0.12mg/l), moderately high Phosphate (0.57 – 1.60mg/l), high Silicate values (1.27 – 9.23mg/l), moderate concentration of heavy metals salts such as Cr (0.03 – 0.60mg/l), Pb (0.22 – 0.61mg/l), Cd (nd – 0.02mg/l, Fe (0.67 – 1.41mg/l) and high Cu values (4.53 – 5.55mg/l). …”
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Formulation of Cefdinir Ternary Solid Dispersion and Stability Study under Harsh Conditions by Naamaa A. Naama, Ghaidaa S. Hameed, Dalya Basil Hanna, Zainab H. Mahdi

“…The ternary SD is subject to evaluation using Differential Scanning Calorimetry (DSC), Powder X-ray Diffractometry (PXRD), and Fourier Transform Infrared Spectroscopy (FTIR), saturated solubility, release, antibacterial activity, and a two months stability study under conditions of 40 ºC and 75% relative humidity. Then, six different capsule formulas were prepared using different excipients; each formula contained 300 mg of CEF. …”
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КОРРЕЛЯЦИЯ РЕОЛОГИЧЕСКИХ СВОЙСТВ С КАЧЕСТВОМ ТРЕХМЕРНОЙ ПЕЧАТИ ШОКОЛАДНОЙ МАССЫ by Сергей Алексеевич Бредихин, Владимир Николаевич Андреев, Александр Николаевич Мартеха, Юрий Михайлович Березовский

“…Определена температура материала перед осаждением, которая поддерживалась на уровне 32 ºC с целью выдавливания расплавленной шоколадной массы. …”
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In vitro evaluation of glutathione implementation on oxidative dna damage and oxidant status in high glucose conditions by Fatmagul Yur, Semiha Dede, Sedat Cetin, Mehmet Taspinar, Ayse Usta

“…<p> <b>Materials and Methods: </b>BHK-21 cell line was regularly surpassed in vitro conditions (5% FBS, 10% horse serum, 1% L-Glutamine, 1% penicillin/ streptomycin in RPMI 1640 medium, and 5% CO2 and 95% humidity and 37ºC) incubated. The control group determined glucose's IC50 value based on the viability tests executed on MTT cells. …”
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Low Profile Planar Inverted-L Antenna (PILA) for UHF RFID Tag on Signal Absorption and Reflection Surfaces by Minh-Tan Nguyen, Yi-Fang Lin, Chien-Hung Chen, Hoang-Son Luong, Hua-Ming Chen

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