Showing 18,381 - 18,400 results of 18,849 for search 'sample random sampling.', query time: 0.23s Refine Results
  1. 18381

    Efficacy of root end cavity preparation techniques on gap formation of different mineral trioxide aggregate based root end filling materials: micro-computed tomography study by Sevcan Akça, Mustafa Murat Koçak, Ali Keleş, Sibel Koçak, Baran Can Sağlam

    Published 2025-07-01
    “…Subsequently, they were divided into 2 subgroups (n = 12 each) based on the type of MTA-based root end filling material (MTA Angelus and MTA Flow). The samples were scanned with micro-CT. The volume of filling, total space, void, and gap in root end cavities were calculated. …”
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  2. 18382

    Expression of Androgen, Estrogen, and Progesterone Receptors in the Skin of Patients with Severe Acne and the Assessment of Their Predictive Potential Using Artificial Intelligence... by Olga M. Demina

    Published 2024-12-01
    “…An IHC study was performed in the Pathomorphological Department at the NMRC PHOI, named after Dmitry Rogachev (Moscow, Russia). Skin samples from patients were collected by punch biopsy. …”
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  3. 18383

    Intestinal flora and metabolomics of post-discharge elderly CAP patients treated with syndrome differentiation in traditional Chinese medicine by LIU Xiaopeng, ZHOU Linqiong, MENG Yuanyuan, YAN Zihan, WANG Minghang

    Published 2025-05-01
    “…Methods Nineteen elderly patients with CAP(11 in the experimental group and 8 in the control group)who were discharged from from the First Affiliated Hospital of Henan University of Traditional Chinese Medicine between December 2022 and November 2023 and 16 healthy volunteers were randomly selected. Plasma and fecal samples were collected. …”
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  4. 18384

    Impact of contract farming on householders' income, intensification, and land productivity in Ethiopia: evidence from smallholder malt barley producers in the highlands of the Cent... by Tamrat Gebiso Challa, Ephrem Boka Dube, Ibsa Dawid, Eihab Fathelrahman

    Published 2025-07-01
    “…Household-level data from 248 randomly sampled households were collected by face-to-face interviews using a structured questionnaire. …”
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  5. 18385

    Unlocking the full potential of resistance training: a comparative analysis of low- and high-intensity effects on neurotrophic growth factors and homocysteine by Chongwen Zuo, Yi Yin, Zhiyang Zheng, Ren Mu, Yuxin Liang, Shan Wang, Chaoqun Ye

    Published 2025-01-01
    “…Blood samples were collected at three time points: pre-training, post training, and after 30 min of rest to measure changes in serum lactate, serum brain-derived neurotrophic factor (BDNF), insulin-like growth factor 1 (IGF-1), vascular endothelial growth factor (VEGF), irisin, and plasma homocysteine (Hcy) levels. …”
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  6. 18386

    Seroprevalence of hepatitis e virus in five high-risk populations from the Republic of Moldova: a cross-sectional study by Octavian SAJIN, Nina IZIUMOV, Adela ȚURCANU, Angela PARASCHIV, Tiberiu HOLBAN, Valentina BLAJ

    Published 2025-06-01
    “…A cross-sectional descriptive-epidemiological study was conducted from 2019 to 2023, with participants randomly selected from different risk groups. Blood samples were collected and tested using ELISA for Anti-HEV IgG and IgM markers. …”
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  7. 18387

    In vitro inhibition of Xanthomonas vasicola pv. musacearum, the causal agent of banana Xanthomonas Wilt, using medicinal plant extracts from North Kivu, Eastern Democratic Republic... by Franchement Mukeshambala, Angele Ibanda, Ludivine Lassois, Gakuru Semacumu, Dhed’a Djailo, Leon Nabahungu, Guy Blomme, Godefroid Monde

    Published 2024-10-01
    “…Three in vitro experiments were conducted at laboratories of Uganda's National Agriculture Research Organization (NARO) and the International Institute of Tropical Agriculture (IITA) in South Kivu. The bacterial samples were collected from infected field-grown banana plants in South Kivu and isolated on Yeast Extract Peptone Agar (YPGA). …”
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  8. 18388

    Improving of 6 weeks of repeated sprint training on the aerobic and anaerobic power of college-age male rugby players by Shuo Wang, Jiakai Tang, Shuning Liu, Huixin Li, Qian Li, Liang Pan, Zezhao Chen, Chang Liu

    Published 2025-07-01
    “…Additionally, the time × group interaction effect was significant for VT-VO2 and LA10. Further paired samples t-test analysis showed that, compared to the HIIT group (HIITG), the repeated sprint training group (RSTG) demonstrated greater intervention effects on Yo-Yo IR1, VO2max, VT-VO2, VT/VO2max, LA10, PP, and MP, with more stable improvements.ConclusionThe 6-week RST protocol was more effective than HIIT in improving key aerobic and anaerobic capacities in collegiate male rugby players. …”
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  9. 18389
  10. 18390

    Proportion of children aged 9-59 months reached by the 2017 measles supplementary immunization activity among the children with or without history of measles vaccination in Lilongw... by Hamilton Wales Kainga, Steven Ssendagire, Jacquellyn Nambi Ssanyu, Sarah Nabukeera, Noel Namuhani, Fred Wabwire Mangen

    Published 2021-01-01
    “…Caretakers of children who were eligible for the 2017 measles SIA were sampled from 19 households from each of the 25 clusters (villages) that were randomly selected in Lilongwe District. …”
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  11. 18391

    EFFECT OF SACUBITRIL/VALSARTAN ON NATRIURESIS, DIURESIS AND BLOOD PRESSURE IN HYPERTENSIVE PATIENTS by Zh. D. Kobalava, S. V. Villevalde, I. A. Meray, O. I. Lukina

    Published 2017-07-01
    “…Fractional sodium excretion was significantly higher in the sacubitril/valsartan group on Day 1 after 6 hours (50%, p=0.004) and subsequent-samples up to 12 hours; the maximum effect was achieved 2-4 hours after taking the medication (mean value 2.08, p=0.005). …”
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  12. 18392

    Verification of the Reliability of an Automated Urine Test Strip Colorimetric Program Using Colorimetric Analysis: Survey Study by Keigo Inagaki, Daisuke Tsuriya, Takuya Hashimoto, Katsumasa Nakamura

    Published 2025-01-01
    “…In this study, urine samples from hospitalized or outpatient patients were randomly obtained, and the reliability of this program was verified by comparing the agreement rate between this program and an automatic urine analyzer (US-3500 [Eiken Chemical Co, Ltd] and LABOSPECT 006 [Hitachi High-Tech Co, Ltd]). …”
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  13. 18393
  14. 18394

    Construction and Validation of a PCA-Based Prediction Model for Preterm Infant Stunting Risk: A Retrospective Study by Kun Dai, Rong Yu, Yushi Meng, Xiaomeng Yang, Yixin Jiang, Jing Luo, Kui Fang, Suqing Wang, Zhihui Rong

    Published 2025-04-01
    “…Methods: This study included preterm infants and their primary caregivers who were followed up at our center from May 2023 to September 2024. The samples were randomly divided into a training cohort, an internal validation cohort, and an external validation cohort. …”
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  15. 18395

    Genomic insights into the role of Salmonella Typhi carriers in antimicrobial resistance and typhoid transmission in Urban Kenya. by Susan M Kavai, Winnie C Mutai, Cecilia Mbae, Kelvin Kering, Ronald Ng'etich, Peter Muturi, Collins Kigen, Mike Mugo, Diana Imoli, Celestine Wairimu, Samuel Kariuki

    Published 2025-01-01
    “…Typhi culture-positive cases were treated and followed up after treatment, where index cases and their household contacts provided stool samples for culture. The susceptibility of all S. …”
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  16. 18396
  17. 18397
  18. 18398

    Comparison of Hand Files, Mtwo, Reciproc, and Gentlefile Rotary Systems Regarding Canal Transportation, Centering Ability, and Obturation Quality of Primary Molars by Maryam Kakoienejad, Mobina Najafifard, Sara Tavasoli-Hojati, Ladan Hafezi, Saba Aghaei

    Published 2025-03-01
    “…Deviation from the original canal path and defective root canal obturation may lead to pulpectomy treatment failure.Purpose: This study compared the primary molar canal transportation, centering ability, and obturation quality of hand files, Mtwo, Reciproc, and Gentlefile rotating machines in root canal treatments.Materials and Method: In this in vitro experimental study, eighty primary molar roots were randomly assigned to four groups. Cone-beam computed tomography (CBCT) scans were provided for the samples, and hand files (group 1), Mtwo (group 2), Reciproc (group 3), and Gentlefile (group 4) were used to instrument the root canals. …”
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  19. 18399

    Pharmacokinetics and bioequivalence of the generic and original dabigatran etexilate after a single dose in healthy volunteers by V. B. Vasilyuk, M. V. Faraponova, A. B. Verveda, G. I. Syraeva, Yu. B. Vikharev, A. V. Popov, A. L. Kovalenko

    Published 2024-10-01
    “…During the study, blood plasma samples were taken from volunteers, in which the concentration of total and free dabigatran was determined. …”
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  20. 18400

    Effect of Thermodynamic Cyclic Loading on Screw Loosening of Tightened Versus New Abutment Screw in Bone Level and Tissue Level Implants in DIO Implant Company (In‐Vitro Study) by Amirhossein Fathi, Sina Borhani, Sepideh Salehi, Ramin Mosharraf, Ramin Atash

    Published 2025-08-01
    “…Material and Methods In this laboratory study, 20 implant‐abutment sets with a diameter of 4.5 mm were randomly placed in resin blocks simulating bone tissue. …”
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