A Semi-Micro Extraction Spectrophotometric Determination of Iron Using 4-Nitrocatechol and Xylometazoline Hydrochloride by Petya V. Racheva, Antoaneta D. Saravanska, Galya K. Toncheva, Denitsa D. Kiradzhiyska, Nikolina P. Milcheva, Vidka V. Divarova, Ina P. Pencheva, Kirila T. Stojnova, Vassil B. Delchev, Kiril B. Gavazov

“…This approach entailed the experimental determination of the 4NC:Fe and XMH:Fe molar ratios and the optimization of potential color-bearing structures utilizing the B3LYP/6-311G computational chemistry method. …”
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Adaptive reaction of barley varieties during environmental testing in the Udmurt Republic by A. G. Kuryleva

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Dependence of surface tension of fruit puree on temperature exposure by L K. Patsyuk, T. V. Fedosenko, V. V. Kondratenko, M. V. Lukyanenko

“…The surface tension coefficient was determined by the stalagmometric method, for which the puree was preliminarily centrifuged. …”
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OBJECTIVE QUALITY ESTIMATION INDICES FOR CHERRY BRANDIES by Krikunova L.N., Dubinina E.V., Alieva G.A.

“…The most significant negative correlation coefficients were determined for the concentrations of methanol (-0.974), acetaldehyde (-0.930), hexanol (-0.947) and ethyl lactate (-0.963). …”
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Source material creation for high content of dry soluble substances F₁ cherry tomato hybrids breeding by S. F. Gavrish, T. A. Redichkina, A. I. Topinskiy

“…The aim of our work was the creation of initial material for the selection of F1 cherry tomato hybrids with a high content of dry soluble substances.Materials and methods. All measurements were obtained by the refractometric method and presented in the oBrix scale. …”
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Determining Influential Users in Social Networks (The Case of: Word of Mouth on Digikala Company Instagram Page) by mohammad reza karimi alavijeh, Mohammad Bakhshi

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Determining the Relation of Lower Limbs Strength Indices in 12-13-Year Old Soccer Players by B.A. Pana, I. Mihaila, I. Mihai, G. Trandafirescu, V. Potop

“…The relation between the measured indices was analyzed using the Pearson correlation coefficient (KyPlot). Determining the relation between lower limbs strength indices of soccer players aged 12-13 highlights differences between the evaluated parameters and their degree of correlation.…”
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Determinants of self-care behaviors in patients with knee osteoarthritis based on the theory of planned behavior in Iran by Mohammad Ali Morowatisharifabad, Sakineh Gerayllo, Zohreh Karimiankakolaki, Ali Dehghan, Hossein Soleymani Salehabadi, Hossein Fallahzadeh

“…Methods: The cross-sectional study was performed on 235 patients who referred to the health-care centers of Yazd city. …”
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Simultaneous determination of 6 pesticide residues in tea by QuEChERS-GS-MS/MS by WU Han-bin

“…<b>Objective:</b> This study aimed to establish a method by using QuEChERS-gas chromatography tandem mass spectrometry (GC-MS/MS), to determine six pesticide residues in tea, including: hydroprene, kinoprene, genite, fluronitrofen, cycloprate, and chlornitrofen. …”
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Chemometrics-Assisted Simultaneous Determination of Atenolol and Furosemide in Synthetic Binary Mixtures and Combined Tablet Preparations by Amir H. M. Sarrafi, Elahe Konoz, Alireza Feyzbakhsh

“…In this work a numerical method, based on the use of spectrophotometric data coupled to PLS multivariate calibration, is reported for the simultaneous determination of furosemide (FUR) and atenolol (ATE) in synthetic samples and combined commercial tablets. …”
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Application of multi-objective decision-making based on entropy weight-TOPSIS method and RSR method in the analysis of orthopedic disease by Deyu An, Nan Wang

“…The RSR regression model demonstrated strong goodness of fit (coefficient of determination, R2 = 0.887; F = 770.543; p < 0.001), confirming the robustness and validity of the analysis. …”
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Ultrasonic Extraction-Gas Chromatography-Mass Spectrometry for Determination of Eight Organophosphorus Flame Retardants in Coatings by ZHANG Ying, LI Yi, CHEN Yezi, WANG Xutao

“…A method for the simultaneous determination of eight organophosphorus flame retardants (OPFRs) in coatings is developed with ultrasonic extraction for preprocessing and gas chromatography-mass spectrometry (GC-MS).The comparison and optimization of experimental conditions in the ultrasonic extraction process indicate that acetone should be taken as the extraction solvent,and the extraction temperature and time should be set to 30 ℃ and 15 min,respectively;when the extraction is repeated twice,the recovery is good.Quantitative analysis is performed by GC-MS with selective ion scanning,with the linear range of the standard preparation curves being 10~1 000 ng/mL.The results demonstrate that the correlation coefficients of linear regression equations for eight OPFRs are not less than 0.990 4.The detection limits of the method are between 0.04 and 0.26 ng/mL,with the recovery of 79.3%~112.0%,and the relative standard deviations are less than or equal to 6.4%.The application of the method to the determination of OPFRs in coating products from five enterprises shows that TCEP is detected in samples of only one enterprise,with a concentration of 15.22 ng/mL.…”
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Determination of similar material proportions based on orthogonal experiments and neural network optimization in the goaf area by Shengdi Wang, Junzhi Chen, Yonggang Zhang, Xiaowei Qiao, Zhiping Zhang, Xin Wang

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Physical Activity Determinants of Female Teachers in Rasht County, Iran; Applying the Social Cognitive Theory by Rogheyeh Ashouri-ahmadgoorabi, Nooshin Rouhani-tonekaboni, Parisa Kasmaei, Maryam Shakiba, Tahereh Kamalikhah

“…Therefore, the present research was aimed to determine physical activity determinants in female teachers based on SCT. …”
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Determination of Beryllium and Tin in Beryllium Ore by Inductively Coupled Plasma-Mass Spectrometry with Alkali Fusion by Xuedong CHANG, Jing DU, Wenming SUN, Guoqiang XU, Amina HOJI, Ruirui DONG

“…A method for simultaneous determination of insoluble elements beryllium and tin in beryllium ores with high grade beryllium ore and associated high tin content in Dahongliutan, Xinjiang was established. …”
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Progressive tax development in the taxation system: acomparative analysis of the EU and Central Asian countries by Azamat Baimagambetov, Serik Omirbayev

“…The following methodological methods were used: methods of generalisation to analyse theoretical materials, methods of processing statistical results, estimation of the Gini coefficient, and assessment of the progressiveness and redistributive capacity of profitability indicators using economic and mathematical modelling methods were also used. …”
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Size Design Method of Two-phase Ejector by Du Yanjun, Liu Feng, Liu Yunfa, Zhang Bo

“…The optimum correction coefficient is determined using an experimental verification method, and the design method of the liquid–liquid ejector in the jet refrigeration cycle is proposed. …”
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Development of chemiluminescent enzyme immunoassay for the determination of triazophos residues in rice grain, soil and paddy water by TIAN Jie, LIANG Xiao, GUI Wenjun, ZHU Guonian

“…There has been a greater demand for developing analytical methods with very high sensitivity. Immunochemical techniques provide a simple and economical alternative to traditional methods in order to meet such demands for determination of triazophos residues.The aim of this work was to develop an indirect competitive chemiluminescent enzyme immunoassay (icCLEIA) with an anti-mouse secondary antibody conjugated to peroxidase for the residual determination of triazophos. …”
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The Determination of Feasible Control Variables for Geoengineering and Weather Modification Based on the Theory of Sensitivity in Dynamical Systems by Sergei A. Soldatenko, Rafael M. Yusupov

“…The information obtained via calculated sensitivity coefficients is very beneficial for assessing the physical feasibility of methods of control of the large-scale atmospheric dynamics and for designing optimal control systems for climatic processes. …”
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Exploiting of Green Synthesized Metal Oxide Nanoparticles in the Potentiometric Determination of Metformin Hydrochloride in Pharmaceutical Products by Shikhah Almutairi, Nawal A. Alarfaj, Adibah M. Almutairi, Maha F. El-Tohamy

“…The proposed method was fully validated with respect to the recommendations of the International Union of Pure and Applied Chemistry (IUPAC). …”
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