A New Methodology for the Development of Efficient Multistep Methods for First-Order Initial Value Problems with Oscillating Solutions V: The Case of the Open Newton–Cotes Differen... by Theodore E. Simos

“…The author has just published a theory on first-order differential equations that accounts for the phase-lag and amplification-factor calculations using explicit, implicit, and backward differentiation multistep methods. Eliminating the phase-lag and amplification-factor derivatives, his presentation delves into how the techniques’ effectiveness changes. …”
Get full text

Influence of milk product type and its initial contamination on the efficiency of different methods for detection of Salmonella Enteritidis, Listeria monocytogenes and Escherichia... by Boris Antunović, Ivančica Kovaček, Kristina Gvozdanović, Manuela Grčević, Vesna Gantner, Vedran Poljak, Mario Ostović, Željko Pavičić, Nihada Ahmetović

Get full text

Assessment of spawning stock for walleye pollock <i>Gadus chalcogrammus</i> Pallas, 1814 in the northern Okhotsk Sea by ichthyoplankton method taking into account the eggs mortalit... by A. V. Buslov, E. E. Ovsiannikov, A. V. Smirnov

Get full text

Determination of an Injection Sprayer's Technological Parameters by L. A. Marchenko, M. A. Safonov

“…(Materials and methods) The injection sprayer belongs to the class of two­phase liquid­gas isothermal jet devices with the formation of an air­gas mixture at the outlet. …”
Get full text

DETERMINATION OF CUTTING TILLAGE DISK PARAMETER by Ya. P. Lobachevskiy, S. I. Starovoytov

Get full text

Método Walkley-Black na determinação da matéria orgânica em solos contaminados por chorume Walkley-Black method for organic matter determination in soils contaminated by leachate... by Cibele M. B. Leite, Ricardo S. Bernardes, Sebastião A. de Oliveira

“…The correlation coefficients between expected and determined values ranged from 0.95 to 0.97 in soil samples studied.…”
Get full text

Development and Validation of a Chromatography Method Using Tandem UV/Charged Aerosol Detector for Simultaneous Determination of Amlodipine Besylate and Olmesartan Medoxomil: Appli... by Ariadne M. Brondi, Jerusa S. Garcia, Marcello G. Trevisan

“…The calibration curve presents linear dynamic range from 12 to 250 μg mL−1 for amlodipine and from 25 to 500 μg mL−1 for olmesartan with coefficient of determination (R2 ≥ 0.9908) while repeatability and reproducibility (expressed as relative standard deviation) were lower than 1.0%. …”
Get full text

Synthesis and characterization of Sr0.5Zn0.5Mn2O4 powder for highly efficient visible light photocatalysis by Benyahia Khawla, Badaoui Mohamed, Sehil Hafida, Chougui Abdelkader, Mourad Abdel-Hamid I., Grira Soumaya, Dehbi Abdelkader

Get full text

Comparison of colorimetric and electrochemical (Easy Touch GCU Meter) methods for determination of blood uric acid in clinical practice in patients with gout and hyperuricemia (dat... by M. S. Eliseev, E. V. Panina, O. V. Zheliabina

“…The average values of UA blood level determined by the two compared methods differed by 13.9 μmol/l (3.9 % with respect to the colorimetric method). …”
Get full text

Examining the Relationship Between the Modified Value-Added Intellectual Coefficient and Financial Performance: A Study on the BIST Bank Index by Yaşar Bayraktar, Oğuz Yusuf Atasel

“…For this purpose, the modified value-added intellectual coefficient (MVAIC) method has been used to measure intellectual capital. …”
Get full text

Development of BaSrTiO3 nanomaterial based dispersive solid phase microextraction method for cadmium determination in thyme samples using flame atomic absorption spectrometry by Selim Gürsoy, Caner Korkmaz, Elif Öztürk Er, Sezgin Bakirdere

Get full text

An Inverse Approach to Estimate Heat Transfer Coefficients of 122 mm Medium-Range Missile During Correction Engine Operation by Janusz ZMYWACZYK, Piotr KONIORCZYK, Marek PREISKORN, Bogdan MACHOWSKI

“…The inverse problem based on the parameter estimation method using Levenberg–Marquardt optimization procedure was applied to find the unknown heat transfer coefficients. …”
Get full text

A novel method for the determination of organophosphorus pesticides in urine samples using a combined gas diffusion microextraction (GDME) and gas chromatography-mass spectrometry... by Mohammadreza Jafari, Ali Gholami, Maryam Akhgari

“…This study introduces a novel and sensitive method for determining organophosphorus pesticides in urine using Gas Diffusion Microextraction (GDME) combined with Gas Chromatography-Mass Spectrometry (GC–MS). …”
Get full text

Combination of solid-liquid hollow fiber liquid phase microextraction method with electromembrane extraction for extraction of Tolmetin and its determination followed by high perfo... by Samaneh Niazipour, Jahan Bakhsh Raoof, Milad Ghani, Reza Ojani

“…Objective: Herein, a reliable and sensitive method for the determination of tolmetin in biological samples was developed by combining solid-liquid hollow fiber liquid phase microextraction (HF-LPME) method with electromembrane extraction (EME) followed by high-performance liquid chromatography with UV detection (HPLC-UV), to enable safe and effective therapeutic monitoring. …”
Get full text

Unsupervised Identification for 2-Additive Capacity by Principal Component Analysis and Kendall’s Correlation Coefficient in Multi-Criteria Decision-Making by Xueting Guan, Kaihong Guo, Ran Zhang, Xiao Han

“…In this paper, we develop a novel unsupervised method for identifying 2-additive capacities by means of Principal Component Analysis (PCA) and Kendall’s correlation coefficient. …”
Get full text

A comparison of established and digital surface model (DSM) ‐based methods to determine population estimates and densities for king penguin colonies, using fixed‐wing drone and sat... by J. Coleman, N. Fenney, P.N. Trathan, A. Fox, E. Fox, A. Bennison, L. Ireland, M.A. Collins, P.R. Hollyman

Get full text

基于数字图像比色法的食用油酸价检测研究Determination of acid value of edible oil by digital image colorimetry-based method by 李跃凡1，马改琴1，王媛媛1，张帆2，于修烛1LI Yuefan1, MA Gaiqin1, WANG Yuanyuan1, ZHANG Fan2, YU Xiuzhu1

“…In conclusion, the digital image colorimetry-based method is simple and convenient, and can be used for the determination of acid value of edible oil.…”
Get full text

Approaches to determining the cost of laboratory tests by I. I. Khayrullin, V. V. Omelyanovskiy, R. V. Gostishchev, O. A. Sukhorukikh, S. A. Kovaleva, B. G. Gorodetsky

“…These measures are aimed at improving the financial position and enhancing the operational efficiency of the laboratories.Objective: to review various methods for calculating the cost of laboratory tests.Material and methods. …”
Get full text

Analysis of the Determinants of Government Expenditure in Indonesia by Selviana Megawati Sipayung, Paidi Hidayat, M. Syafii

Get full text

Features of the change in the thermal coefficient of electrical resistance upon heating electrically conductive composites of crystallizable polyolefins with carbon black by A. V. Markov, A. E. Zverev, V. A. Markov

“…To investigate electrically conductive polymer composite materials (EPCMs) based on crystallizable polyolefins and electrically conductive carbon black for the production of self-regulating heaters; to study the mechanism of the occurrence of positive and negative temperature coefficients (PTC and NTC) upon heating such composites.Methods. …”
Get full text