Expertini Research Research

Browse Research Papers

187,736+ open-access research outputs.

✕ Clear
🔍 covid 19
Showing 187736 results for "covid 19"
Physics Preprint PDF DOI

Unveiling the potential of NdPO4 magnetocaloric phases in cryogenic refrigeration

M. Balli, L. Attou, S-E. Bouzarmine, S. Oubad, K. El Maalam, P. Fournier, S. Mangin · 2026

The RPO4 orthophosphates (R = rare earth element) have recently attracted a wide interest due to the strong coupling between their electronic, orbital and structural ordering parameters resulting in a…

Read Paper →
Biology & Life Sciences Preprint PDF DOI

The Lifetime Cardiac-Cycle Invariant in Endothermic Vertebrates: A 230-Species Comparative Dataset, Statistical Validation, and Explicit Falsifiability Criteria

Mesfin Taye · 2026

A pygmy shrew (\textit{Suncus etruscus}, ${\approx}2$\,g) sustains a resting heart rate near $1{,}000$\,beats\,min$^{-1}$ and dies within two years; an African elephant (${\approx}4{,}000$\,kg) beats …

Read Paper →
Computer Science Preprint PDF DOI

HAVEN: Hybrid Automated Verification ENgine for UVM Testbench Synthesis with LLMs

Chang-Chih Meng, Yu-Ren Lu, Guan-Yu Lin, Tsung Tai Yeh, Kai-Chiang Wu, I-Chen Wu · 2026

Integrated Circuit (IC) verification consumes nearly 70% of the IC development cycle, and recent research leverages Large Language Models (LLMs) to automatically generate testbenches and reduce verifi…

Read Paper →
AI & Data Science Preprint PDF DOI

Mapping how LLMs debate societal issues when shadowing human personality traits, sociodemographics and social media behavior

Ali Aghazadeh Ardebili, Massimo Stella · 2026

Large Language Models (LLMs) can strongly shape social discourse, yet datasets investigating how LLM outputs vary across controlled social and contextual prompting remain sparse. Cognitive Digital Sha…

Read Paper →
Physics Preprint PDF DOI

Detection of optical quasi-periodic oscillation in the blazar 3C 454.3

Karan Dogra, Alok C. Gupta, C. M. Raiteri, M. Villata, Paul J. Wiita, Mauri J. Valtonen, S. O. Kurtanidze, S. G. Jorstad, R. Bachev, G. Damljanovic, C. Lorey, S. S. Savchenko, O. Vince, M. Abdelkareem, F. J. Aceituno, J. A. Acosta-Pulido, I. Agudo, G. Andreuzzi, S. A. Ata, G. V. Baida, L. Barbieri, D. A. Blinov, G. Bonnoli, G. A. Borman, M. I. Carnerero, D. Carosati, V. Casanova, W. P. Chen, Lang Cui, P. U. Devanand, E. G. Elhosseiny, D. Elsaesser, J. Escudero, J. H. Fan, M. Feige, K. Gazeas, T. S. Grishina, Minfeng Gu, V. A. Hagen-Thorn, F. Hemrich, H. Y. Hsiao, M. Ismail, R. Z. Ivanidze, M. D. Jovanovic, T. M. Kamel, G. N. Kimeridze, Shubham Kishore, E. N. Kopatskaya, D. Kuberek, O. M. Kurtanidze, A. Kurtenkov, V. M. Larionov, Elena G. Larionova, L. V. Larionova, H. C. Lin, K. Mannheim, A. Marchini, C. Marinelli, A. P. Marscher, D. Morcuende, D. A. Morozova, S. V. Nazarov, M. G. Nikolashvili, D. Reinhart, J. Otero-Santos, A. Scherbantin, E. Semkov, E. V. Shishkina, L. A. Sigua, A. K. Singh, A. Sota, R. Steineke, M. Stojanovic, A. Strigachev, A. Takey, Amira A. Tawfeek, Tushar Tripathi, I. S. Troitskiy, Y. V. Troitskaya, An-Li Tsai, A. A. Vasilyev, K. Vrontaki, Zhongli Zhang, A. V. Zhovtan, N. Zottmann, Wenwen Zuo · 2026

We analyzed 19 years of $R$-band data of the blazar 3C 454.3 from the Whole Earth Blazar Telescope (WEBT) archive, along with new data from its members and from public archives such as those provided …

Read Paper →
AI & Data Science Preprint PDF DOI

Perturbation Probing: A Two-Pass-per-Prompt Diagnostic for FFN Behavioral Circuits in Aligned LLMs

Hongliang Liu, Tung-Ling Li, Yuhao Wu · 2026

Perturbation probing generates task-specific causal hypotheses for FFN neurons in large language models using two forward passes per prompt and no backpropagation, followed by a one-time intervention …

Read Paper →
Engineering Preprint PDF DOI

A Real-time Scale-robust Network for Glottis Segmentation in Nasal Transnasal Intubation

Yang Zhou, Chaoyong Zhang, Ruoyi Hao, Huilin Pan, Yang Zhang, Hongliang Ren · 2026

Nasotracheal intubation (NTI) is a critical clinical procedure for establishing and maintaining patient airway patency. Machine-assisted NTI has emerged as a pivotal approach for optimizing procedural…

Read Paper →
Computer Science Preprint PDF DOI

RAQG-QPP: Query Performance Prediction with Retrieved Query Variants and Retrieval Augmented Query Generation

Fangzheng Tian, Debasis Ganguly, Craig Macdonald · 2026

Query Performance Prediction (QPP) estimates the retrieval quality of ranking models without the use of any human-assessed relevance judgements, and finds applications in query-specific selective deci…

Read Paper →
Economics & Finance Preprint PDF DOI

Do News and Social Media Tell the Same Story? Constructing and Comparing Sentiment Spillover Networks

Fan Wu, Anqi Liu, Maggie Chen, Yuhua Li · 2026

Investor sentiment reflects the collective attitude of investors towards the asset, whether positive, negative or neutral. Market information, such as news and relevant social media posts, plays a sig…

Read Paper →
Physics Preprint PDF DOI

A self-evolving agent for explainable diagnosis of DFT-experiment band-gap mismatch

Yue Li, Bijun Tang · 2026

Standard density functional theory (DFT) routinely misclassifies the electronic ground state of correlated and structurally complex compounds, predicting metallic behaviour for materials that experime…

Read Paper →
Physics Preprint PDF DOI

TwinSpecNet: Extending APOGEE's chemical reach to low-S/N spectra via empirical paired learning

Weijia Sun, Cristina Chiappini, Samir Nepal · 2026

Large spectroscopic surveys rely on automated pipelines to deliver homogeneous stellar labels, but a substantial fraction of observations are at low signal-to-noise ratio (S/N), where label estimates …

Read Paper →
Mathematics Preprint PDF DOI

Geometric structure of singular free boundary points for the logarithmic obstacle problem

Lili Du, Xu Tang, Yi Zhou · 2026

In the previous work [Interfaces Free Bound., 19, 351--369, 2017], de Queiroz and Shahgholian established the optimal $C^{1,\log}_{\mathrm{loc}}$ regularity of solutions for the obstacle problem with …

Read Paper →
AI & Data Science Preprint PDF DOI

Are Data Augmentation and Segmentation Always Necessary? Insights from COVID-19 X-Rays and a Methodology Thereof

Aman Swaraj, Arnav Agarwal, Hitendra Singh Bhadouria, Sandeep Kumar, Karan Verma · 2026

Purpose: Rapid and reliable diagnostic tools are crucial for managing respiratory diseases like COVID-19, where chest X-ray analysis coupled with artificial intelligence techniques has proven invaluab…

Read Paper →
AI & Data Science Preprint PDF DOI

A New Semisupervised Technique for Polarity Analysis using Masked Language Models

Kohei Watanabe · 2026

I developed a new version of Latent Semantic Scaling (LSS) employing word2vec as a masked language model. Unlike original spatial models, it assigns polarity scores to words and documents as predicted…

Read Paper →
Computer Science Preprint PDF DOI

Multi-TRP Assisted UAV Detection in 3GPP 5G-Advanced ISAC Network

Neeraj Varshney, Steve Blandino, Jian Wang, Anuraag Bodi, Camillo Gentile, Nada Golmie · 2026

ISAC is currently being standardized within the 3GPP New Radio (NR) to enable cellular infrastructure to perform sensing using existing communication waveforms. While standardization is progressing, p…

Read Paper →
Physics Preprint PDF DOI

Time-of-Flight Constraints on Neutrino Millicharge from Supernova Neutrinos in Galactic Magnetic Fields

Pedro Dedin Neto, AmirFarzan Esmaeili, Guilherme A. Nogueira, Pedro Cunha de Holanda, Ernesto Kemp · 2026

A millicharged neutrino propagating through magnetic fields experiences a small Lorentz-force deflection, which induces a geometric time delay. In the ultra-relativistic regime relevant for supernova …

Read Paper →
AI & Data Science Preprint PDF DOI

Exploring Remote Photoplethysmography for Neonatal Pain Detection from Facial Videos

Ashutosh Dhamaniya, Anup Kumar Gupta, Trishna Saikia, Puneet Gupta · 2026

Unaddressed pain in neonates can lead to adverse effects, including delayed development and slower weight gain, emphasising the need for more objective and reliable pain assessment methods. Hence, aut…

Read Paper →
Earth & Environmental Sciences Preprint PDF DOI

Euclid: Asteroid rotation periods from the Euclid Ecliptic Survey

B. Y. Irureta-Goyena, B. Altieri, J.-P. Kneib, M. Pontinen, O. R. Hainaut, M. R. Alarcon, M. Granvik, A. A. Nucita, B. Carry, M. Devogele, M. Mahlke, R. Vavrek, T. Muller, E. Vilenius, C. Snodgrass, R. Kohley, C. Lemon, P. Gomez-Alvarez, G. Verdoes Kleijn, J. Licandro, S. Kruk, L. Conversi, A. Franco, G. Buenadicha, P. Mas-Buitrago, K. Kuijken, S. Andreon, C. Baccigalupi, M. Baldi, A. Balestra, P. Battaglia, A. Biviano, E. Branchini, M. Brescia, S. Camera, V. Capobianco, C. Carbone, J. Carretero, R. Casas, M. Castellano, G. Castignani, S. Cavuoti, K. C. Chambers, A. Cimatti, C. Colodro-Conde, G. Congedo, C. J. Conselice, Y. Copin, F. Courbin, H. M. Courtois, M. Cropper, H. Degaudenzi, G. De Lucia, C. Dolding, H. Dole, F. Dubath, X. Dupac, M. Farina, R. Farinelli, S. Ferriol, M. Frailis, M. Fumana, S. Galeotta, K. George, B. Gillis, C. Giocoli, J. Gracia-Carpio, A. Grazian, F. Grupp, S. V. H. Haugan, H. Hoekstra, W. Holmes, I. M. Hook, F. Hormuth, A. Hornstrup, K. Jahnke, M. Jhabvala, A. Kiessling, B. Kubik, M. Kummel, M. Kunz, H. Kurki-Suonio, A. M. C. Le Brun, S. Ligori, P. B. Lilje, V. Lindholm, I. Lloro, G. Mainetti, O. Mansutti, O. Marggraf, M. Martinelli, N. Martinet, F. Marulli, R. J. Massey, E. Medinaceli, S. Mei, E. Merlin, G. Meylan, A. Mora, L. Moscardini, R. Nakajima, C. Neissner, S.-M. Niemi, C. Padilla, S. Paltani, F. Pasian, K. Pedersen, W. J. Percival, V. Pettorino, G. Polenta, L. A. Popa, F. Raison, R. Rebolo, A. Renzi, J. Rhodes, G. Riccio, E. Romelli, M. Roncarelli, R. Saglia, Z. Sakr, D. Sapone, M. Schirmer, P. Schneider, A. Secroun, E. Sihvola, P. Simon, C. Sirignano, G. Sirri, L. Stanco, P. Tallada-Crespi, I. Tereno, S. Toft, R. Toledo-Moreo, F. Torradeflot, I. Tutusaus, J. Valiviita, T. Vassallo, Y. Wang, J. Weller, F. M. Zerbi, J. Garcia-Bellido, J. Martin-Fleitas, V. Scottez, G. Helou, D. Scott · 2026

The Euclid Ecliptic Survey was conducted during the calibration phase of the mission, 23-31 December 2023, as a campaign to study Solar System objects. We used data from this survey to analyse more th…

Read Paper →
Physics Preprint PDF DOI

LAMOST J052016.79+345651.7: An EW-type Binary with Emission Line Spectra and Circumstellar Material

Yanhui Chen, Chaomi Duan, Yi Yu · 2026

LAMOST J052016.79+345651.7 was identified as an EW-type eclipsing binary by Chen et al. when studying the periodic variable stars based on the ZTF telescope. An orbital period of 0.3507818 days has be…

Read Paper →
Computer Science Preprint PDF DOI

Visual Boosting Techniques for Spatiotemporal Dense Pixel Visualizations

Julius Rauscher, Frederik L. Dennig, Udo Schlegel, Daniel A. Keim, Tobias Schreck · 2026

The analysis of spatiotemporal data is essential in domains such as epidemiology and environmental monitoring, where understanding the interplay between spatially distributed phenomena and their tempo…

Read Paper →
Page 1 of 9387 Next →