Showing 621 - 640 results of 22,558 for search 'detection sampling', query time: 0.20s Refine Results
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    Screening for Sexually Transmitted Infection Pathogens in Semen Samples by RW Peeling, J Embree

    Published 2005-01-01
    “…Although viral STI pathogens and Treponema pallidum -- the causative agent of syphilis -- may be detected in semen, their presence may be more sensitively detected through antibody testing of the donor. …”
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  6. 626

    Sources of variability in metabolite measurements from urinary samples. by Qian Xiao, Steven C Moore, Simina M Boca, Charles E Matthews, Nathaniel Rothman, Rachael Z Stolzenberg-Solomon, Rashmi Sinha, Amanda J Cross, Joshua N Sampson

    Published 2014-01-01
    “…<h4>Conclusions</h4>The use of metabolomics in urine samples from epidemiological studies would require large sample sizes to detect associations with moderate effect sizes.…”
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  7. 627

    Intraspecies associations from strain-rich metagenome samples by Evan B. Qu, Jacob S. Baker, Laura Markey, Veda Khadka, Chris Mancuso, A. Delphine Tripp, Tami D. Lieberman

    Published 2025-08-01
    “…Summary: Genetically distinct strains of a species can vary widely in phenotype, reducing the utility of species-resolved microbiome measurements for detecting associations with health or disease. While metagenomics theoretically provides information on all strains in a sample, current strain-resolved analysis methods face a tradeoff: de novo genotyping approaches can detect novel strains but struggle when applied to strain-rich or low-coverage samples, while reference database methods work robustly across sample types but are insensitive to novel diversity. …”
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  8. 628

    Characterization of oral swab samples for diagnosis of pulmonary tuberculosis. by Rachel C Wood, Alfred Andama, Gleda Hermansky, Stephen Burkot, Lucy Asege, Mukwatamundu Job, David Katumba, Martha Nakaye, Sandra Z Mwebe, Jerry Mulondo, Christine M Bachman, Kevin P Nichols, Anne-Laure M Le Ny, Corrie Ortega, Rita N Olson, Kris M Weigel, Alaina M Olson, Damian Madan, David Bell, Adithya Cattamanchi, William Worodria, Fred C Semitala, Akos Somoskovi, Gerard A Cangelosi, Kyle J Minch

    Published 2021-01-01
    “…A qPCR targeting conserved bacterial ribosomal rRNA gene (rDNA) sequences was used to quantify bacterial biomass in samples. There was no detectable reduction in total bacterial rDNA signal over the course of 10 rapidly repeated tongue samplings, indicating that swabs collect only a small portion of the biomass available for testing. …”
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  9. 629

    Improved sample preparation using bead mill homogenization by Madison E. Walbrun, Aamna Aijaz, Gabriella Ryan, John D. Bunting, Zachary P. Morehouse, Rodney J. Nash

    Published 2025-08-01
    “…Proper sample preparation is the key to having successful data analysis downstream. …”
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  10. 630

    The structure of affective fluctuations in a non-clinical sample by N. N. Osipova, L. M. Bardenstein, G. A. Aleshkina, E. V. Dmitrieva

    Published 2021-10-01
    “…Upon a clinical and psychopathological examination according to ICD-10 criteria, class V, mental and behavioral disorders (F00-F99), including affective pathology, were not detected. According to the findings of the HCL-32 screening technique, 61.2% (n = 79) of respondents had a cumulative score above the threshold. …”
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  11. 631

    Assessment of Sr-90 in water samples: precision and accuracy by Marcelo Bessa Nisti, Cátia H.R. Saueia, Bruna Castilho, Barbara P. Mazzilli

    Published 2019-02-01
    “…The parameters Minimum Detectable Activity (MDA) and Figure Of Merit (FOM) were determined for each method, the precision and accuracy were checked using 90Sr standard solutions.…”
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  12. 632

    On the pursuit of reproducibility: the importance of large sample sizes in psychoimmunology by Manivel Rengasamy, Daniel Moriarity, Rebecca Price

    Published 2025-01-01
    “…We further assessed how statistical errors varied as related to analytic decisions (e.g., number of covariates) and characteristics related to study design (e.g., relationships within subgroups of patients). Only large samples (e.g., n = 1000 to n = 10,000) were sufficiently powered to detect PIM-depression associations and minimized overestimation of effect sizes (e.g., effect size inflation), and greater sample sizes were required as more covariates were included in analytic models. …”
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  13. 633

    Ensuring representative sample volume predictions in microplastic monitoring by Richard K. Cross, Sarah L. Roberts, Monika D. Jürgens, Andrew C. Johnson, Craig W. Davis, Todd Gouin

    Published 2025-01-01
    “…We have developed the Representative Sample Volume Predictor (RSVP) tool, which standardises statistical prediction of sufficient sample volumes, to ensure microplastics are detected with a given level of confidence. …”
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    Discussion on the Analysis Method of Iodide in Natural Water Samples by Xinyi SONG, Chunxue XU, Ziyi AN, Hongbin SUN, Zongding CHEN, Wei LIU, Yuqi ZHENG

    Published 2023-06-01
    “…BACKGROUNDAs the main source of iodine intake, water is of practical significance to detect the content of iodide accurately. At present, the common methods for the analysis of iodide in water samples include ion chromatography, gas chromatography, colorimetry, spectrophotometry. …”
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    Case Report: Anomalous drainage vein sampling for diagnosing aldosterone-producing lesions undetectable by segmental adrenal venous sampling in a two-case series by Hiromitsu Tannai, Sota Oguro, Hiroki Kamada, Yuta Tezuka, Yoshikiyo Ono, Kei Omata, Kei Takase

    Published 2025-06-01
    “…Compared with conventional AVS, segmental AVS with additional sampling in adrenal tributaries can detect aldosterone-producing adenomas (APAs) with higher sensitivity. …”
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  16. 636

    Performance Evaluation of a Fully Automated Molecular Diagnostic System for Multiplex Detection of SARS-CoV-2, Influenza A/B Viruses, and Respiratory Syncytial Virus by James G. Komu, Dulamjav Jamsransuren, Sachiko Matsuda, Haruko Ogawa, Yohei Takeda

    Published 2025-07-01
    “…Using saliva samples, the viral titer detection limits of geneLEAD/VIASURE and manual referent singleplex RT-qPCR assays were compared. …”
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    Analytical performance evaluation of a multiplex real-time RT-PCR kit for simultaneous detection of SARS-CoV-2, influenza A/B, and RSV by Chi-Sheng Tai, Ming-Jr Jian, Tai-Han Lin, Hsing-Yi Chung, Chih-Kai Chang, Cherng-Lih Perng, Po-Shiuan Hsieh, Hung-Sheng Shang

    Published 2025-07-01
    “…RNA standards were serially diluted and tested with the LabTurbo kit to determine the limit of detection (LOD). This cross-sectional study involved the analysis of 350 nasopharyngeal swab samples, which included 250 positive cases (50 cases each of influenza A, influenza B, and RSV, along with 100 cases of SARS-CoV-2) and 100 negative cases. …”
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