3D-printed electrochemical sensor applied to the determination of nitrite: A cost-effective and portable platform for environmental and clinical monitoring by Luiz R.G. Silva, Domingos R. Santos-Neto, Jéssica S. Stefano, Daniel H. de Oliveira, Larissa S. da Silva, Heloysa S. Pittner, Cíntia L. Handa, Rodrigo A.A. Muñoz, Diego P. Rocha

“…The proposed method presented a linear dynamic range from 5.0 to 500.0 µmol L⁻¹, with a limit of detection of 1.8 µmol L⁻¹. …”
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Metabonomic Biomarkers of Plaque Burden and Instability in Patients With Coronary Atherosclerotic Disease After Moderate Lipid‐Lowering Therapy by Zhendong Mei, Lili Xu, Qingxia Huang, Chenhao Lin, Mengyao Yu, Shalaimaiti Shali, Hongyi Wu, Yijing Lu, Runda Wu, Zhen Wang, Lingfeng Luo, Zhonghan Sun, Liang Sun, Juying Qian, Guochong Chen, Huiru Tang, Kang Yao, Yan Zheng, Yuxiang Dai, Junbo Ge

“…The association of metabolites with CAD severity was examined using multivariate linear regression, and the underlying potential causality was explored using a 2‐sample Mendelian randomization approach. …”
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Enzymeless electrochemical detection of hydrogen peroxide using NiO octahedron decorated 3D graphene hydrogel by Mohamed A. Yassin, Ayman F. Abou-Hadid, Hamouda M. Mousa, Chan Hee Park, Cheol Sang Kim, Ali Salem, Mohamed A. Mattar

“…Various physicochemical methods such as FE-SEM, HR-TEM, XRD, TGA and Raman were utilized to characterize the morphology and structure properties of the as-prepared samples. The electrochemical sensing of H2O2 for the proposed biosensor electrodes are investigated, and the 3DGH/NiO nanocomposite electrode with NiO content of 25% displays high sensitivity with wide linear range and low detection limit, as well as good selectivity, reproducibility and long-term stability. …”
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Analytical and clinical evaluation of a duplex RT-qPCR assay for the detection and identification of o’nyong-nyong and chikungunya virus by Konrad M. Wesselmann, Lea Luciani, Laurence Thirion, Xavier de Lamballerie, Remi Charrel, Laura Pezzi

“…Both monoplex assays and the duplex assay proved to be linear within the tested range of approximately 108 to 102 RNA copies/µl, and showed 100% specificity against a wide panel of arbovirus supernatants as well as several other pathogens in clinical samples. …”
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A Sensitive, Specific and Fast Electrochemical‐based Nanobiosensor Diagnostic for Xanthomonas albilineans, the Cause of Sugarcane Leaf Scald Disease by Moutoshi Chakraborty, Shamsul Arafin Bhuiyan, Simon Strachan, Muhammad J.A. Shiddiky, Nam‐Trung Nguyen, Narshone Soda, Rebecca Ford

“…The method shows excellent detection sensitivity (10 cells µL−1), reproducibility (Standard deviation, SD <5%, for n = 3), and a wide linear dynamic range (1 nM–1 fM or 106–10° copies µL−1, r = 0.99). …”
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The structural, magnetic and electrical properties of chromium doped calcium ferrite nanoparticles by R. UmashankaraRaja, H.C. Manjunatha, Y.S. Vidya, E. Krishnakanth, R. Munirathnam, K.M. Rajashekara, S. Manjunatha

“…As the dopant concentration increases, Ms and Hc found to be maximum at 30 mol% cr3+ concentration in CaFe2O4 NPs. Linear increase in frequency-dependent conductivity at lower frequencies was observed. …”
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Pain and feasibility of capillary self-blood collection in general practice: A cross-sectional investigative study by Christopher Schuchardt, Frank Müller, Angelika Hafke, Eva Hummers, Julie Schanz, Alexandra Dopfer-Jablonka, Georg M. N. Behrens, Dominik Schröder

“…This approach may improve continuity of care for patients, especially with chronic conditions.Objectives Compare pain perception between venous blood draws and capillary SBC and evaluate the usability and blood volume yield of SBC devices.Methods In this cross-sectional study, general practice patients from mid of Germany, Germany performed SBC using the Tasso+® upper-arm device and mailed samples to a laboratory. Pain, usability, SBC volume, and associated factors were analysed using bivariate and general linear models.Results Of 106 patients, 57.5% performed SBC without assistance. …”
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HPLC Identification of Mare’s Milk and Its Mix with Cow’s Milk by Vladimir P. Kurchenko, Elena S. Simonenko, Natalia V. Sushynskaya, Tatsiana N. Halavach, Andrey N. Petrov, Sergey V. Simonenko

“…The standard HPLC method was optimized to analyse whey proteins in the milk samples. The separation of whey proteins included the following optimal parameters: chromatography time = 60 min, linear gradient of acetonitrile concentration = 0–50%, and sample volume for injection = 20 μl. …”
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A Miniaturized Percoll Gradient Method for Isolation of Quiescent Cells of Yeast by Cenxuan Zu, Jia Dong, Yue Zhang, Yao Zhang, Zongzheng Huang, Shaolan Zou

“…This method requires more reagents and samples and special centrifuges and centrifuge tubes. …”
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Solvent-Driven Enrichment and Multiplex Analysis of Local Anesthetics by Thin-Layer Chromatography Coupled with Surface-Enhanced Raman Spectroscopy by Huimin Sui, Miao Li, Yangyang Gao, Jie Luo, Fangyuan Ban, Tao Xu, Shuang Fu, Chao-Yang Zhao, Hailin Wen, Cuiyan Han

“…In order to improve the sensitivity, TLC spots were concentrated into smaller ones using methanol through solvent-driven enrichment, then Ag NPs staining was applied to enriched spots for a strong and unique SERS response of each anesthetic. As a result, linear calibration curves of SERS intensity ratio versus negative logarithm of spotting amounts sampled on TLC plates were obtained, along with the lowest detectable amounts in this study were 1 ng (Pro), 10 pg (Tet), 10 ng (Dib), 50 ng (Mep), 50 ng (Lid), and 0.1 μg (Rop), which were up to 2 × 10⁴ times more sensitive than our previous TLC-Raman method. …”
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Channel Amplitude and Phase Error Estimation of Fully Polarimetric Airborne SAR with 0.1 m Resolution by Jianmin Hu, Yanfei Wang, Jinting Xie, Guangyou Fang, Huanjun Chen, Yan Shen, Zhenyu Yang, Xinwen Zhang

“…Thirdly, based on the minimum entropy criterion of the synthesized compressed pulse image, residual linear phase errors between subbands are quickly acquired. …”
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The Combination of Direct Aging and Cryogenic Treatment Effectively Enhances the Mechanical Properties of 18Ni300 by Selective Laser Melting by Yaling Zhang, Xia Chen, Bo Qu, Yao Tao, Wei Zeng, Bin Chen

“…The results show that the AT6C8 sample achieved the highest microhardness (635 HV_0.5) and tensile strength (2180 MPa), significantly exceeding the as-built (311 HV_0.5, 1182 MPa) and AT6 (580 HV_0.5, 2012 MPa) samples. …”
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Adipocyte mitochondria in dairy cows reveals constraints in growth and signals adaptive metabolic responses by Elvira Gagniuc, Adina-Mihaela Pîrvu, Dumitru-Iulian Nastac, Paul A. Gagniuc, Mihaela Gherghiceanu, Manuella Militaru

“…A total of 678 mitochondria from these samples were analyzed using electron microscopy to determine their lengths, thicknesses, and volumes. …”
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Comparisons of Feed Bunk Nutrient Consistency, Milk Production and Cow Behavior Between Herds Using Automated Milking Systems With or Without Automated Feeding Robots by Kevin Kamau, Benjamin Thorpe, Katie E. Meier, Marcia I. Endres, Isaac J. Salfer

“…Bulk tank milk samples were collected 1 ×/d for 3 d and analyzed for fat, protein, milk urea nitrogen (MUN), lactose, and milk fatty acid (FA) profile. …”
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Device Substantiation for Generating Artificial Rain Drops by Pneumohydraulic Liquid Spraying by V. P. Gorobey, V. Y. Moskalevich, Z. A. Godzhaev

“…With an increase in the water flow rate within the specified limits and the ejection coefficient from 0.5 to 0.9, a linear increase in the average annular gap diameter from 2 to 15 millimetres was revealed, as well as a nonlinear dependence of the increase in the sprayer mixing cell diameter from 5 to 20 millimetres. …”
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Exploring longitudinal physiologic stress measurement and sleep quality interventions to improve psychological well-being in nurses: a pilot study by Allison A. Norful, Krystyna de Jacq, Jiawen Zhao, Yuandi Gao, Kathryn Asadoorian, Yilei Yang, Hyun Jin Jung, Ari Shechter

“…Data were analyzed using paired t-tests and linear mixed-effect models.Results: The sample was predominantly White (64%), non-Hispanic (88%), and female (84%). …”
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DisCo P-ad: Distance-Correlation-Based <i><b>p</b></i>-Value Adjustment Enhances Multiple Testing Corrections for Metabolomics by Debmalya Nandy, Debashis Ghosh, Katerina Kechris

“…However, many existing procedures may be too conservative or too lenient, only assume a linear association between the features, or have not been evaluated on metabolomics data. …”
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Coronary Artery-Bypass-Graft Surgery Increases the Plasma Concentration of Exosomes Carrying a Cargo of Cardiac MicroRNAs: An Example of Exosome Trafficking Out of the Human Heart... by Costanza Emanueli, Andrew I U Shearn, Abas Laftah, Francesca Fiorentino, Barnaby C Reeves, Cristina Beltrami, Andrew Mumford, Aled Clayton, Mark Gurney, Saran Shantikumar, Gianni D Angelini

“…Linear regression analyses were employed to establish the extent to which the circulating individual miRs, exosomes and exosomal cardiac miR correlated with cTn-I. …”
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Establishment, evaluation and application of a gas chromatography-mass spectrometry method for quantification of volatile organic compounds in ambient air using anisole as an inter... by Ivona Sofronievska, Marina Stefova, Jasmina Petreska Stanoeva, Jane Bogdanov

“…Gas chromatography coupled with mass spectrometry (GC-MS) is a standard analytical method for identifying specific volatile organic compounds (VOCs) in urban air samples. Quantification ideally relies on calibration curves using standards for each compound. …”
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Resilience evaluation of memristor based PUF against machine learning attacks by Hebatallah M. Ibrahim, Heorhii Skovorodnikov, Hoda Alkhzaimi

“…The efficient time and data complexities of these attacks illustrated in this study are yielded to be linear and quadratic resulting in attack execution time in seconds and 5032 training samples combined with 2157 testing samples to verify the randomness of PUF.…”
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