Showing 21,001 - 21,020 results of 25,938 for search '"R', query time: 0.16s Refine Results
  1. 21001

    Hybrid Models for Daily Global Solar Radiation Assessment by Abdelkerim Souahlia, Abdelhalim Rabehi, Abdelazize Rabehi

    Published 2023-06-01
    “…Results show the effectiveness of the proposed method, where values of 0,0189, 0.0286, 5.4387, and 98.28% have been found as MABE, RMSE, nRMSE and r, respectively. …”
    Get full text
    Article
  2. 21002

    Characterization by Potentiometric Procedures of the Stability Constants of the Binary and Ternary Complexes of Cu(II) and Duloxetine Drug with Amino Acids by Amal M. Al-Mohaimeed, Asma A. Alothman

    Published 2019-01-01
    “…Respective stabilities of ternary complexes have been determined compared with the corresponding binary complexes in terms of Δlog  K and %R.S. values. A novel binary and ternary duloxetine (D) drug with glycine and its Cu(II) complexes has been synthesized and characterized by several spectroscopic methods. …”
    Get full text
    Article
  3. 21003

    Development of E-Module "Community Needs Analysis" Based on Massive Open Online Course (MOOC) : Learning Innovation for Community Practitioners by Rakhmaditya Dwi Noorrizki, Alfina Nur Azri, Anjarie Dharmastuti, Ikhwanul Ihsan Armalid

    Published 2025-01-01
    “…This research used the Research and Development (R&D) method with the Four-D model (Define, Design, Develop, Disseminate). …”
    Get full text
    Article
  4. 21004

    Hemşireler İçin Klinik Uygulamada Eleştirel Düşünme Ölçeği Türkçe Formunun Geçerlilik ve Güvenilirliği by Arzu Kader Harmancı Seren, Eylül Urhan

    Published 2019-12-01
    “…Ölçeğin madde-toplam puan korelasyondeğerleri(r) 0,374 ile 0,688 arasında saptandı. Cronbach alfa iç tutarlılık katsayısı0,98 olarakbulundu. …”
    Get full text
    Article
  5. 21005

    Development of creativity-based learner worksheets in science subjects at elementary school by Alvi Dwi Kartika Sari, Nirwana Anas

    Published 2024-06-01
    “…The method applied in this research is Research and Development (R&D). The development of this LKPD refers to the development model proposed by Robert Maribe Brach with the ADDIE approach. …”
    Get full text
    Article
  6. 21006

    Species abundance, urn models, and neutrality by Chave, Jerome

    Published 2024-10-01
    “…For all three models, an exact sampling formula is provided, and a new R package neutr, is presented. This package is used to fit species abundances from regional inventories of tropical forest trees in the Amazon, tropical Africa and Southeast Asia. …”
    Get full text
    Article
  7. 21007

    Comparison of In Vitro Endocrine Activity of Phthalates and Alternative Plasticizers by Hélène Moche, Aouatif Chentouf, Sergio Neves, Jean-Marc Corpart, Fabrice Nesslany

    Published 2021-01-01
    “…On the other hand, both DEHP and DINP, as well as DEHT, DINCH, and TOTM, disrupted steroidogenesis in the H295R assay, mainly by inducing an increase in estradiol synthesis; no such effect was observed for POLYSORB® isosorbide and POLYSORB® ID 46.…”
    Get full text
    Article
  8. 21008
  9. 21009

    Determination of 14 Human Milk Oligosaccharides in Infant Formula Milk Powder by Hydrophilic Interaction Liquid Chromatography-Tandem Mass Spectrometry by YE Mengwei, HUANG Qian, FENG Lifeng, HUANG Yuan, CAI Xiaoming, GAO Yu, WANG Tianxi, PAN Cheng

    Published 2025-02-01
    “…Under optimized conditions, all HMOs showed good linear relationships within their respective concentration ranges, with determination coefficients (R2) greater than 0.994. The average recovery rates from blank goat’s and cow’s milk powders at three spiked levels ranged from 90.3% to 109.2%, with relative standard deviation (RSD) in the range of 0.7%–9.7% (n = 6), and the limit of detection (LOD) between 0.002 and 0.048 μg/mL. …”
    Get full text
    Article
  10. 21010

    Integrating Satellite Data and In-situ Observations for Trophic State Assessment of Renuka Lake, Himachal Pradesh, India by Sujit Kumar Jally, Rakesh Kumar and Sibabrata Das

    Published 2024-12-01
    “…Notably, the exponential regression model outperformed other regression models (linear, logarithmic, polynomial, and power), achieving a better model output (R2=0.94). Additionally, water quality parameters, namely pH and dissolved oxygen (DO), were measured using the TROLL 9500 multi-parameter instrument. …”
    Get full text
    Article
  11. 21011
  12. 21012
  13. 21013

    Zmiany w polskim handlu zagranicznym produktami rolno spożywczymi z Federacją Rosyjską w latach 2006-2015 by Iwona Batyk

    Published 2018-03-01
    “…Wartość obrotów istotnie zmniejszyła się po wprowadzeniu w 2014 r. przez Federację Rosyjską ograniczeń w imporcie tych produktów z krajów Unii Europejskiej. …”
    Get full text
    Article
  14. 21014

    Design of a Reconfigurable Robotic System for Flexoextension Fitted to Hand Fingers Size by J. Felipe Aguilar-Pereyra, Eduardo Castillo-Castaneda

    Published 2016-01-01
    “…The amplitude of the rotations for metacarpophalangeal joint (MCP) and proximal interphalangeal joint (PIP) varies from 0 to 90° and the distal interphalangeal joint (DIP) varies from 0 to 60°; the joint rotations are coordinated naturally. The four R-RRT mechanisms orientation allows a 15° abduction movement for index, ring, and little fingers. …”
    Get full text
    Article
  15. 21015

    Stock price prediction using the Sand Cat Swarm Optimization and an improved deep Long Short Term Memory network by Burak Gülmez

    Published 2024-12-01
    “…Model performance was assessed through Mean Squared Error, Mean Absolute Error, Mean Absolute Percentage Error, and out-of-sample R2 metrics. Statistical significance was validated using Model Confidence Set analysis with 5000 bootstrap replications. …”
    Get full text
    Article
  16. 21016

    Exploring the community of inquiry framework in higher education: a bibliometric analysis by Aarti Pushp Rawal

    Published 2025-12-01
    “…Citation analysis revealed Garrison’s (1999) work, Critical Inquiry in a Text-Based Environment: Computer Conferencing in Higher Education, as a seminal publication, with 10,927 citations, establishing D.R. Garrison as a key figure in CoI discourse. Beyond quantitative metrics, this analysis offers insights into the theoretical evolution and practical relevance of CoI in pedagogy, technological integration, and curriculum in HE. …”
    Get full text
    Article
  17. 21017

    Compressive Strength Evaluation of Fiber-Reinforced High-Strength Self-Compacting Concrete with Artificial Intelligence by Tu T. Nguyen, Hoa Pham Duy, Tung Pham Thanh, Hoang Hiep Vu

    Published 2020-01-01
    “…Specifically, the overall coefficient of determination (R2) of the ANN and ANFIS models was 0.9742 and 0.9584, respectively. …”
    Get full text
    Article
  18. 21018

    Dwudziestolecie Polski w strukturach Unii Europejskiej – kluczowe zmiany na polskim rynku pracy by Karol Papka

    Published 2024-09-01
    “…Dodatkowym czynnikiem, który wpłynął na pobudzenie zjawiska migracji w celach zarobkowych, było otwarcie rynku pracy na polskich migrantów przez państwa sąsiadujące – szczególnie Niemcy. Wówczas (2013 r.) struktura przepływów finansowych uległa znaczącej zmianie, gdyż to państwo niemieckie stało się krajem, z którego każdego roku do dziś napływają najwyższe wartości środków finansowych. …”
    Get full text
    Article
  19. 21019

    Evolutionary plasticity and functional repurposing of the essential metabolic enzyme MoeA by Daniela Megrian, Mariano Martinez, Pedro M. Alzari, Anne Marie Wehenkel

    Published 2025-01-01
    “…Abstract MoeA, also known as gephyrin in higher eukaryotes, is an enzyme essential for molybdenum cofactor (Moco) biosynthesis and involved in GABA and GlyR receptor clustering at the synapse in animals. …”
    Get full text
    Article
  20. 21020

    The relationship between obsessive–compulsive symptoms and depressive symptoms in patients with obsessive–compulsive disorder: A network analysis by Zhujing Ma, Lei Ren, Li Guo, Fengzhan Li, Yinchuan Jin, Wei Liang, Qintao Zhang, Huiling Yuan, Qun Yang

    Published 2023-05-01
    “…Statistical analysis and visualization of the network were conducted using R software. Results: Two bridge edges “uneasiness” and “time consumed by obsessions” and “low spirit” and “distress caused by obsessions” connected the OCD symptoms to depressive symptoms. …”
    Get full text
    Article