Exploring the Effect of Item Parceling Strategies and Number of Items per Parcel on Measurement Invariance Testing in Confirmatory Factor Analysis by Cao, Chunhua, Liang, Xinya

Get full text

Optimization of IC Separation Based on Isocratic-to-Gradient Retention Modeling in Combination with Sequential Searching or Evolutionary Algorithm by Šime Ukić, Marko Rogošić, Mirjana Novak, Ena Šimović, Vesna Tišler, Tomislav Bolanča

“…All the calculated/predicted chromatograms were compared with the real sample data, showing more than a satisfactory agreement.…”
Get full text

Evaluation of Dioxin/Furan and Elements in Poultry from Zarqa Governorate, Jordan by Mohanad Masad, Samer Alawaideh, Basheer Nusairat, Ali Alnawaiseh, Ahmad Al Shra’ah

Get full text

Extraction Efficiency of Different Solvents and LC-UV Determination of Biogenic Amines in Tea Leaves and Infusions by U. Gianfranco Spizzirri, Nevio Picci, Donatella Restuccia

“…Biogenic amines (BAs), that is, spermine, spermidine, putrescine, histamine, tyramine, β-phenylethylamine, cadaverine, and serotonin, have been determined in several samples of tea leaves, tea infusions, and tea drinks by LC-UV method after derivatization with dansyl chloride. …”
Get full text

Same or Different? Comparing the Coverage Rate of Five Different Approaches for Testing the Difference of Two Groups Means by Bittmann, Felix

“…In this research paper, five widely available methods are compared to investigate the coverage of the generated 95\% confidence intervals. …”
Get full text

A new investigation on modeling of permeability reduction during CO2 flooding processes in sandstone oil reservoirs by Taraneh Jafari Behbahani

“…Permeability reduction in oil reservoirs during primary oil recovery and using the enhanced oil recovery methods are complicated problem which most of the oil field in worlds has encountered. …”
Get full text

Quantitative Analysis in Combination with Fingerprint Technology and Chemometric Analysis Applied for Evaluating Six Species of Wild Paris Using UHPLC-UV-MS by Yuangui Yang, Ji Zhang, Hang Jin, Jinyu Zhang, Yuanzhong Wang

“…A fast method was developed by ultra high performance liquid chromatography (UHPLC) for simultaneous determination of polyphyllin I and polyphyllin II. …”
Get full text

Multivariate Calibration and Model Integrity for Wood Chemistry Using Fourier Transform Infrared Spectroscopy by Chengfeng Zhou, Wei Jiang, Qingzheng Cheng, Brian K. Via

“…Standard laboratory chemistry methods were employed on a mixed genus/species hardwood sample set to collect the original data. …”
Get full text

Synchronized Analysis of FTIR Spectra and GCMS Chromatograms for Evaluation of the Thermally Degraded Vegetable Oils by Siong Fong Sim, Terri Zhuan Ean Lee, Nurul Aida Lu Mohd Irwan Lu, Benedict Samling

Get full text

Evaluation of seismic performance of steel frames with Y-shape braces under far-field and near-field earthquakes by Saeed Najafi, Shahin Borzoo, Kaveh Saboohian, Hadi Aboutalebi

Get full text

Development of a Chemiluminescence Immunoassay for Quantification of 25-Hydroxyvitamin D in Human Serum by Shuang Han, Wuxian Qiu, Junlan Zhang, Zhonghu Bai, Xiao Tong

“…Streptavidin (SA) was labeled to magnetic beads by a 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide/N-hydroxysuccinimide (EDC/NHS) method. Biotinylated VD was used as a competitor of 25(OH)D in samples. …”
Get full text

Geographic Origin Tracing and Variety Authentication of Vietnamese Mangoes (Mangifera indica L.) Using ICP–MS and Statistical Analysis by Bui Quang Minh, Tran Ha Minh Duc, Le Van Nhan, Le Viet Anh, Nguyen Hoang Khanh, Nguyen Ngoc Tung, Hoang Minh Tao, Nguyen Tien Dat, Nguyen Quang Trung, Nguyen Bich Ngoc, Nguyen Van Khanh, Truong Ngoc Minh

“…Notably, Can Tho samples had the highest Mg concentration (575.52 ± 42.29 μg/g), while Tien Giang samples had the lowest (80.06 ± 10.24 μg/g). …”
Get full text

Rapid Screening and Quantitative Analysis of 74 Pesticide Residues in Herb by Retention Index Combined with GC-QQQ-MS/MS by Peng Tan, Li Xu, Xi-Chuan Wei, Hao-Zhou Huang, Ding-Kun Zhang, Chen-Juan Zeng, Fu-Neng Geng, Xiao-Ming Bao, Hua Hua, Jun-Ning Zhao

“…The RSD values for interday and intraday variation were acquired to evaluate the precision of the analytical approach, and the overall interday and intraday variations are not more than 1.97% and 3.82%, respectively. The variations of concentrations of the analyzed three pesticide compounds in sample CX16 are 0.74%–4.15%, indicating that the three pesticides in the sample solutions were stable in 48 h. …”
Get full text

Removal of Fluoride from Drinking Water by Sorption Using Diatomite Modified with Aluminum Hydroxide by Tesfaye Akafu, Achalu Chimdi, Kefyalew Gomoro

“…Adsorption experiments were carried out by using batch contact method. The adsorbent was characterized using FT-IR spectroscopy. …”
Get full text

Quantitative Analysis of a Weak Correlation between Complicated Data on the Basis of Principal Component Analysis by Tao Pang, Haitao Zhang, Liliang Wen, Jun Tang, Bing Zhou, Qianxu Yang, Yong Li, Jiajun Wang, Aiming Chen, Zhongda Zeng

“…The mining of weak correlation information between two data matrices with high complexity is a very challenging task. A new method named principal component analysis-based multiconfidence ellipse analysis (PCA/MCEA) was proposed in this study, which first applied a confidence ellipse to describe the difference and correlation of such information among different categories of objects/samples on the basis of PCA operation of a single targeted data. …”
Get full text

Rapid and Simultaneous Prediction of Eight Diesel Quality Parameters through ATR-FTIR Analysis by Maurilio Gustavo Nespeca, Rafael Rodrigues Hatanaka, Danilo Luiz Flumignan, José Eduardo de Oliveira

“…For this purpose, the quality parameters of 409 samples were determined using standard methods, and their spectra were acquired in ranges of 4000–650 cm−1. …”
Get full text

Using the Doubly Charged Selected Ion Coupled with MS/MS Fragments Monitoring (DCSI-MS/MS) Mode for the Identification of Gelatin Species by Xian-Long Cheng, Feng Wei, Jia Chen, Ming-hua Li, Lei Zhang, Ying-Yong Zhao, Xin-Yue Xiao, Shuang-cheng Ma, Rui-Chao Lin

“…In electrospray ionization (ESI) mode, peptides and proteins can be multiply charged ions; in this situation a doubly charged selected ion (DCSI) coupled with mass spectrometry (MS/MS) fragments monitoring (DCSI-MS/MS) method is the most suitable scanning mode to detect known peptides in complex samples when an ion-trap mass spectrometer is the instrument used for the analysis. …”
Get full text

Predictive analysis of clinical features for HPV status in oropharynx squamous cell carcinoma: A machine learning approach with explainability by Emily Diaz Badilla, Ignasi Cos, Claudio Sampieri, Berta Alegre, Isabel Vilaseca, Simone Balocco, Petia Radeva

“…Materials and Methods:: We employed the RADCURE dataset clinical information to train six Machine Learning algorithms, evaluating them via cross-validation for grid search hyper-parameter tuning and feature selection as well as a final performance measurement on a 20% sample test set. …”
Get full text

NIMS polymer database PoLyInfo (II): machine-readable standardization of polymer knowledge expression by Masashi Ishii, Takuro Ito, Koichi Sakamoto

Get full text

Visualization of spin-polarized electronic states by imaging-type spin-resolved photoemission microscopy by Koichiro Yaji, Shunsuke Tsuda

Get full text