Showing 6,681 - 6,700 results of 8,228 for search 'Linear sampling', query time: 0.15s Refine Results
  1. 6681

    A Comparative Study of the Extraction Methods for the Simultaneous Detection of NPS Groups from Urine by M. Kuloglu Genc, S. Mercan, C. Bulut, Z. Turkmen

    Published 2024-12-01
    “…The selected SPE procedure was applied to 20 authentic urine samples taken from volunteers. Results: The optimized extraction method was validated in terms of selectivity, linearity, the limit of detection, the limit of quantification, accuracy, and precision. …”
    Get full text
    Article
  2. 6682

    A cross-correlator-based timing tool for FemtoMAX by D. Kroon, E. Nilsson, B. Ahn, M. Bertelli, R. Calarco, I. Clementsson, S. De Simone, J. C. Ekström, A. Jurgilaitis, M. Longo, V. T. Pham, J. Larsson

    Published 2025-07-01
    “…In this case, one of the beams is a relatively weak diagnostic beam of visible light from a bending magnet at FemtoMAX (106 photons pulse−1 in a 0.2 mm high and 5 mm wide beam) while the other is a relatively intense laser beam (200 µJ pulse−1) derived from the same laser that is used to pump the sample in pump/probe experiments. This enables online monitoring of the relative timing of a linear accelerator-based, short-pulse, hard X-ray source and a synchronized visible laser. …”
    Get full text
    Article
  3. 6683

    The Function of Photocatalytic Performance and Carrier Separation Efficiency Tuned by Doping Content in Homogeneous Photocatalysts by Chunxia Wen, Xinyue Ni, Mei Han, Yue Yu, Chuanqiang Liu, Yuan Zhang, Beining Zheng, Shouhua Feng

    Published 2025-07-01
    “…The direct correlation between carrier separation efficiency and photocatalytic performance with different doping content samples is clearly elucidated by carrier dynamic characterization results. …”
    Get full text
    Article
  4. 6684

    Reveal your microbes, and i’ll reveal your origins: geographical traceability via Scomber colias intestinal tract metagenomics by Bernardo Duarte, Eduardo Feijão, Ana Cruz-Silva, Pedro Pascoal, Mónica Nunes, Marcelo Pereira, Andreia Figueiredo, Ricardo P. Dias, Susanne E. Tanner, Vanessa F. Fonseca

    Published 2025-05-01
    “…Random forest-based model yielded an 85% accuracy rate in attributing sample provenance based on intestinal tract bacteriome OTU relative abundance. …”
    Get full text
    Article
  5. 6685

    Rapid differentiation of patients with lung cancers from benign lung nodule based on dried serum Fourier-transform infrared spectroscopy combined with machine learning algorithms by Huanyu Li, Lixue Dai, Shaomei Guo, Hongluan Wang, Lei Lei, Jie Yu, Xiaoyun Li, Jun Wang

    Published 2025-08-01
    “…Five machine learning models, linear discriminant analysis (LDA), support vector machine (SVM), random forest, multilayer perceptron (MLP), and LightGBM, were optimized using FTIR spectral data (1800–900 cm−1 band). …”
    Get full text
    Article
  6. 6686

    Stacking growth of ionically conductive MOF on biofabrics enables reliable NH3 sensor for hepatic encephalopathy diagnosis by Kai Liu, Yifan Xu, Xiaozhu Tian, Junxuan Liang, Zhihui Zhao, Jun Wang, Ziqi Zhang, Kewei Zhang, Song Yang

    Published 2025-07-01
    “…Notably, the optimized sensor yields a sixfold enhancement in response as compared with traditional EC-MOF powders. A linear regression model validated by fivefold cross-validation achieves 98.4% accuracy in NH3 concentration prediction, while the kNN classifier shows 96% accuracy in gas identification (tested on 192 samples). …”
    Get full text
    Article
  7. 6687

    Dual‐Atom Catalyst Au@S‐rGO for Rapid and Highly Sensitive Electrochemical Detection of Fentanyl in Serum by Meng Li, ZhiJin Fan, Qiuxia Gao, Ying He, Anyun Xu, Zhaofeng Gu, Shixiong Wang, Huiping Bai, Yuhui Liao, Ruilin Zhang

    Published 2025-05-01
    “…The optimal electrode delivers a good linear relationship for fentanyl concentrations from 0.0291 to 38.2 µmol L‐1, with a detection limit of 9.7 nmol L‐1. …”
    Get full text
    Article
  8. 6688

    Exploring the effect of multi-modal intervention against cognitive decline on atrophy and small vessel disease imaging markers in the AgeWell.de imaging study by Frauke Beyer, Lukas Kleine, Andrea Zülke, Melanie Luppa, Toralf Mildner, Jochen Gensichen, Thomas Frese, David Czock, Birgitt Wiese, Hans-Helmut König, Hanna Kaduszkiewicz, Wolfgang Hoffmann, Jochen René Thyrian, Arno Villringer, Steffi Riedel-Heller, A.Veronica Witte

    Published 2025-01-01
    “…All other markers progressed similarly across groups, however sample size was smaller than expected. In exploratory analyses, cerebral blood flow increased more in the intervention group and this change was associated with decreases in systolic blood pressure. …”
    Get full text
    Article
  9. 6689

    Exploring Gelatin‐A and Mouse Proline‐Rich Protein 5 as Probes for Wine Polyphenol Analysis by Quartz Crystal Microbalance with Dissipation Monitoring by Giorgia Tori, Mariacristina Gagliardi, Francesco Lunardelli, Chiara Sanmartin, Isabella Taglieri, Gianmarco Alfieri, Margherita Modesti, Domenica Convertino, Andrea Bellincontro, Fabio Mencarelli, Marco Cecchini

    Published 2025-08-01
    “…Both probes have shown promising performance in the analysis of polyphenols in wine, with both changes in the sensor's resonance frequency and dissipation with all tested samples. Notably, using MP5, a linear response of the dissipation has been observed with both the total polyphenol and hydroxybenzoic acid concentrations. …”
    Get full text
    Article
  10. 6690

    Biliary microbiome profiling via 16 S rRNA amplicon sequencing in patients with cholangiocarcinoma, pancreatic carcinoma and choledocholithiasis by Hiroki Mizutani, Shunsuke Fukui, Kazuki Oosuka, Kohei Ikeda, Mayu Kobayashi, Yasuaki Shimada, Yuuichi Nakazawa, Yuuki Nishiura, Daisuke Suga, Isao Moritani, Yutaka Yamanaka, Hidekazu Inoue, Hayato Nakagawa, Kaoru Dohi, Hiroyuki Kaiju, Kei Takaba, Hideo Wada, Katsuya Shiraki

    Published 2025-05-01
    “…The microbial community structure in each group demonstrated a specific pattern. Linear discriminant analysis revealed Streptococcus, Sphingomonas, and Bacillus enrichment in CCA patients, Neisseria, Sphingomonas, and Caulobacter in PDAC patients were more prevalent compared with CDL patients. …”
    Get full text
    Article
  11. 6691

    Stable Hydrogen‐Bonded Cobalt‐porphyrin Framework for High‐Performance Electrochemical Detection of Carcinoembryonic Antigen by Youfa Wang, Jie Han, Geoffrey I. N. Waterhouse, Huiwen Gu, Rui Wang, Shuang Wu, Pengfei Dong, Vijaya Raghavan, Jin Wang

    Published 2025-03-01
    “…The electrochemical signal increased linearly with the concentration of CEA, demonstrating a wide linear range (0.001–50 ng mL−1) and a low detection limit (0.22 pg mL−1), surpassing the performance of commercial ELISA kits and most reported detection methods. …”
    Get full text
    Article
  12. 6692

    Development of an RT-qPCR Assay for the Detection of an Emerging Duck Egg-Reducing Syndrome by Zhifei Zhang, Xin Su, Dun Shuo, Dawei Yan, Xue Pan, Bangfeng Xu, Minghao Yan, Shuxuan Ren, Qinfang Liu, Chunxiu Yuan, Qiaoyang Teng, Zejun Li

    Published 2025-03-01
    “…It had a detection limit of 10<sup>2</sup> copies and a linear range from 10<sup>2</sup> to 10<sup>9</sup> copies per reaction. …”
    Get full text
    Article
  13. 6693

    Epidemiology of immune thrombocytopenia: study of adult patients at a referral hematology service in Northeastern Brazil by Bruna Sobreira Kubrusly, Elsie Sobreira Kubrusly, Hermano Alexandre Lima Rocha, Antonio Brazil Viana Júnior, Marcela Sobreira Kubrusly, Lucas Loiola Ponte Albuquerque Ribeiro, Rosângela de Albuquerque Ribeiro, Fernando Barroso Duarte

    Published 2024-11-01
    “…Following ethics committee approval, information was collected with an ad hoc instrument. The sample consisted of 187 adult ITP patients attending the Walter Cantídio University Hospital in 2015. …”
    Get full text
    Article
  14. 6694

    LENGTH-WEIGHT RELATIONSHIP AND RELATIVE CONDITION FACTOR OF 31 SMALL-SIZED FISHES OF THE PARANAPANEMA RIVER BASIN by João Daniel FERRAZ, Diego Azevedo Zoccal GARCIA, Armando César Rodrigues CASIMIRO, Iago Vinicios GELLER, Fernanda Simões ALMEIDA, Mário Luís ORSI

    Published 2021-12-01
    “…The standard length (SL) in millimeters and weight (W) in grams were measured, and the length-weight relationship was calculated using linear regression analysis (W = log (a) + b log (SL)). …”
    Get full text
    Article
  15. 6695

    Pharmacokinetics of Lusutrombopag, a Novel Thrombopoietin Receptor Agonist, in Rats by UPLC-MS/MS by Bo Wang, Feifei Chen, Quan Zhou, Yunfang Zhou, Deru Meng, Peiwu Geng, Ailian Hua, Weiping Ji, Changxiong Wang, Shuanghu Wang, Liming Hu

    Published 2020-01-01
    “…In the study, UPLC-MS/MS was used to establish a selective and sensitive method to determine lusutrombopag with poziotinib as IS (internal standard) in rat plasma. Samples were prepared by precipitating protein with acetonitrile as a precipitant. …”
    Get full text
    Article
  16. 6696

    Virological Response in Cerebrospinal Fluid to Antiretroviral Therapy in a Large Italian Cohort of HIV-Infected Patients with Neurological Disorders by Maria Letizia Giancola, Patrizia Lorenzini, Antonella Cingolani, Francesco Baldini, Simona Bossolasco, Teresa Bini, Laura Monno, Giovanna Picchi, Antonella d’Arminio Monforte, Paola Cinque, Valerio Tozzi, Andrea Antinori

    Published 2012-01-01
    “…Three hundred sixty-three HIV-positive patients with available data from paired plasma and CSF samples, were selected. One hundred twenty patients (33.1%) were taking ARVs at diagnosis of neurological disorder. …”
    Get full text
    Article
  17. 6697

    Subjective well-being of Kenyan children reunified with families from residential care institutions: A closer look at child disability by Sarah Elizabeth Neville, Joanna Wakia, John Hembling, Beth Bradford, Martin Kiandiko, Michael Ochieng, Edith Apiyo, Khadija Karama, Alividzah Kituku, Maureen Obuya, Missie Oindo, Wilson Ochuka, Indrani Saran, Margaret Lombe, Thomas M. Crea

    Published 2025-10-01
    “…Methods: We drew upon a cross-sectional household survey of N = 105 children and conducted multiple linear regressions with clustered errors that controlled control for child sex, age, and time since family reunification. …”
    Get full text
    Article
  18. 6698

    Investigation of CuTi Alloy for Applications as Non-Sparking Material by Alin-Marian Cazac, Romeo Gabriel Chelariu, Ramona Cimpoesu, Mihai Adrian Bernevig, Marcelin Benchea, Adrian Marius Jurca, Ancuța Mirela Radu, Gabriel Dragos Vasilescu, Bogdan Garaliu-Busoi, Fabian Cezar Lupu, Gheorghe Badarau, Costica Bejinariu

    Published 2024-12-01
    “…The corrosion behavior was studied using electrochemical techniques: open-circuit, linear, and cyclic potentiometry in saline electrolyte solutions. …”
    Get full text
    Article
  19. 6699

    Rapid and sensitive electrochemical determination of flavonoids in Albanian wines using zeolite X and Prrenjasi clay as carbon paste modifiers by Nensi Isak, Muhamed Farruku, Xhensiana Ndreka, Sara Dervishi, Magdalena Cara, Edlira Baraj, Avni Berisha, Arjan Korpa, Kledi Xhaxhiu

    Published 2025-05-01
    “…Also, PCME was chosen for its linear background, low cost, and excellent sensitivity for total flavonoid determinations in Albanian wines. …”
    Get full text
    Article
  20. 6700

    肠道微生物群紊乱与急性轻型缺血性卒中患者不良功能预后的相关性研究 Correlation between Gut Microbiota Dysbiosis and Poor Functional Prognosis in Patients with Acute Mild Ischemic Stroke... by 任悦冉,梁京儒,郑逸锋,尹恝 (REN Yueran, LIANG Jingru, ZHENG Yifeng, YIN Jia )

    Published 2024-12-01
    “…结果 预后不良组与预后良好组MIS患者肠道微生物群组成存在显著差异(P=0.001)。在菌群组成上,线性判别分析效应大小(linear discriminant analysis effect size,LEfSe)分析发现大肠埃希菌志贺菌属(Escherichia Shigella)是预后不良组患者的优势菌属,预后良好组患者厚壁菌门(Firmicutes)、梭菌纲(Clostridia)丰度明显富集。…”
    Get full text
    Article