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The Fundamental Speed Theory: A Mathematically Consistent Vector-Tensor Theory for Galactic Dynamics Without Dark Matter Updated Results from 171 SPARC Galaxies
Raheb Ali Mohammed Saleh Aoudh
Posted: 24 April 2026
Neo-Adjuvant Chemotherapy Enables Functional Preservation in Advanced Tongue Cancers: A Retrospective Cohort Study
Meghna Kumar
,Srinjeeta Garg
,Zikki Hasan Fatima
,Gaurav Kumar
,Burhanuddin Qayyumi
,Vanita Noronha
,Kumar Prabhash
,Pankaj Chaturvedi
Posted: 24 April 2026
Synthesis and Structures of Trifluromethylborates [pinB(Aryl)CF3]–: pinB = 4,4,5,5-Tetramethyl-1,3,2-dioxaborolane
Yu-En Huang
,Shigekazu Ito
Fluoroalkyl-substituted organoboron compounds are valuable building blocks for organic synthesis and for the development of functional molecules in medicinal chemistry, agrochemicals, and materials science. Building on our previous work on difluoromethyl-substituted borates, we report the synthesis and structural characterization of trifluoromethylated borates, 4,4,5,5-tetramethyl-2-aryl-2-(trifluoromethyl)-1,3,2-dioxaborolan-2-uide salts ([pinB(Aryl)CF3]–). Treatment of pinB–Aryl boronates (pinB = 4,4,5,5-tetramethyl-1,3,2-dioxaborolane) with trimethyl(trifluoromethyl)silane (Ruppert–Prakash reagent) in the presence of potassium tert-butoxide and 18-crown-6 (18-cr-6) afforded the corresponding trifluoromethylated borates as isolable crystalline compounds. Compared with the related difluoromethylated borates, the CF3 substituent increases the tendency of [pinB(Aryl)CF3]– to exhibit hygroscopic behavior, as supported by a hydrated crystal structure and the formation of a hygroscopic product. The isolable trifluoromethylborates can serve as reservoirs of electrophilic trifluoromethyl radicals upon oxidation.
Fluoroalkyl-substituted organoboron compounds are valuable building blocks for organic synthesis and for the development of functional molecules in medicinal chemistry, agrochemicals, and materials science. Building on our previous work on difluoromethyl-substituted borates, we report the synthesis and structural characterization of trifluoromethylated borates, 4,4,5,5-tetramethyl-2-aryl-2-(trifluoromethyl)-1,3,2-dioxaborolan-2-uide salts ([pinB(Aryl)CF3]–). Treatment of pinB–Aryl boronates (pinB = 4,4,5,5-tetramethyl-1,3,2-dioxaborolane) with trimethyl(trifluoromethyl)silane (Ruppert–Prakash reagent) in the presence of potassium tert-butoxide and 18-crown-6 (18-cr-6) afforded the corresponding trifluoromethylated borates as isolable crystalline compounds. Compared with the related difluoromethylated borates, the CF3 substituent increases the tendency of [pinB(Aryl)CF3]– to exhibit hygroscopic behavior, as supported by a hydrated crystal structure and the formation of a hygroscopic product. The isolable trifluoromethylborates can serve as reservoirs of electrophilic trifluoromethyl radicals upon oxidation.
Posted: 24 April 2026
Various New Properties for Central Bell-Based Type 2 Bernoulli Polynomials of Order β
Ugur Duran
Posted: 24 April 2026
RGB Ensemble Strategies for Unsupervised Industrial Anomaly Detection on the AutoVI Dataset
Sergio Villanueva
,Emilio Soria-Olivas
,Manuel Sánchez-Montañés
Posted: 24 April 2026
Willingness to Accept a Locally Manufactured COVID-19 Vaccine in Lagos, Nigeria: A Cross-Sectional Survey and Demographic Predictors
Taiwo Opeyemi Aremu
,Olihe Nnenna Okoro
,Caroline Gaither
,S. Bruce Benson
,Drissa M. Toure
,Jon C Schommer
Posted: 24 April 2026
Innovation and Productivity as Engines of Economic Growth in Ghana
Hu Xuhua
,Ernest Kay Bakpa
,Josephine Adwoa Yeboah
Posted: 24 April 2026
Interpretable Machine Learning for Volatility Forecasting Under Realistic Walk-Forward Constraints
Ting Liu
Posted: 24 April 2026
Manufacturing and Assembly Variability in Electric Drivetrains: Impacts on NVH Performance
Krisztian Horvath
Posted: 24 April 2026
A Hybrid Matrix-Based Cryptographic Framework Using Multiple Linear Recurrence Sequences
Sukran Uygun
Posted: 24 April 2026
An Approximate Solution to the Minimum Vertex Cover Problem: The Hvala Algorithm
Frank Vega
Posted: 24 April 2026
Lived Experiences, Disease Management and Expectations in a Nursing-Led Psoriasis Unit: A Qualitative Study
Elena Violeta Iborra-Palau
,Elena García-Redondo
,Carlos Blasco-García
,Raquel Alabau-Dasi
Posted: 24 April 2026
Interleukin-17A (IL-17A): Molecular Mechanisms and Its Roles in Immune and Neuroimmune Systems
Sae Sanaka
,Asumi Kubo
,Sara Kamiya
,Kenyu Nakamura
,Tetsuya Sasaki
Posted: 24 April 2026
Intelligent Pedestrian Model as a Risk-Based Framework for Pedestrian Prioritization
Zoltán Rózsás
,István Lakatos
Posted: 24 April 2026
Slope Damage and the Onset of Acceleration: A Framework for Progressive Failure Monitoring
Thomas Beingessner
,Davide Elmo
Posted: 24 April 2026
The Evolutionary Origin of the Collective Unconscious and the Appeal of Research on Neanderthals and Other Ancient Humans
Marcelo R. S. Briones
Posted: 24 April 2026
Behavioural Biometrics and Continuous Authentication for Insider Threat Detection in Enterprise Networks
Nursultan Kuldeyev
,Orken Mamyrbayev
,Ainur Akhmediyarova
,Assel Yerzhan
Posted: 24 April 2026
Transcranial Magnetic Stimulation over the Left Inferior Parietal Lobule Facilitates Early-Stage Processing During Natural Chinese–English Bilingual Reading
Junjie Wu
,Ruoling Hang
,Pingping Xin
,Guoli Yan
,Chanyuan Gu
,Luyao Chen
Posted: 24 April 2026
Automated Detection of Amaranthus palmeri in Crops of the Brazilian Cerrado Using RPA Images and Deep Learning
Denilson Pereira Passo
,Rodrigo Rodrigues Antunes
,Edilson de Souza Bias
,Gilson Alexandre Ostwald Pedro da Costa
,Raul Queiroz Feitosa
,Thanan Walesza Pequeno Rodrigues
,Omar Roberto da Silveira
Posted: 24 April 2026
Existing Systems for Earth-Retaining Structures Monitoring, New Approaches and Future Trends—A Survey
Samira Mirzavand
,Joaquim Tinoco
,José C. Matos
,Joao Amado
Posted: 24 April 2026
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