The Multidisciplinary Preprint Platform

Pre-Graduate and Post-Graduate Medical Education in the Health Sciences
Prof. Dr. Joaquín María García-Estañ López
Ecofriendly Materials
Dr. Manoj Gupta
EUSAR 2020—Preprints
Dr. Matthias Weiß
Teaching Sociology
Prof. Dr. Sandro Nuno Ferreira de Serpa
Food Analytical Methods
Prof. Dr. Gavino Sanna
Quantum Computing
Prof. Dr. Lester Ingber


Shifting Our Value System Beyond Citations for a More Equitable Future
Success and impact metrics in science are based on a system that perpetuates sexist and racist ‘rewards’ through prioritizing citations and impact factors. These metrics are flawed and biased against ...
At the molecular resolution with MINFLUX?
Gwosch et al. (2020) and Balzarotti et al. (2017) purport MINFLUX as the next revolutionary fluorescence microscopy technique claiming a spatial resolution in the range of 1-3 nm in fixed ...
SARS-CoV-2 and the Secret of the Furin Site
The SARS-CoV-2 high infectivity is due to the functional polybasic furin cleavage site in the S protein. How it was acquired is unknown. There are two challenges to face: (i) ...
On the Inapplicability of Supervised Machine Learning to Studying the Driving Forces of Evolution
Supervised machine learning (SML) is a powerful method for predicting a small number of well-defined output groups (e.g., potential buyers of a certain product) by taking as input a large ...
Measuring and Monitoring Skeletal Muscle Mass and Dysfunction After Stroke
Muscle mass at admission is important to survive stroke, and stroke-induced sarcopenia is a serious problem because of its poor prognosis. Muscle mass measurement and monitoring are essential for appropriate ...


HypoxiaInducible Factor (HIF) in Ischemic Stroke and Neurodegenerative Disease
Hypoxia is one of the most common pathological conditions which results from ischemic injury, trauma, inflammatory conditions, tumors, The adaptation of the body to hypoxia is a phenomenon that is ...
Phylogenetic Signal in Characters from Aristotle’s History of Animals
The great Greek philosopher Aristotle (384–322 BCE) is almost unanimously acclaimed as the founder of zoology. There is a consensus that he was interested in attributes of animals, but whether ...
Deep Learning versus Spectral Techniques for Frequency Estimation of Single-Tones: Reduced Complexity for SDR and IoT Sensor Communications
Despite the increasing role of machine learning in various fields, very few works considered artificial intelligence for frequency estimation (FE). This work presents a comprehensive analysis of deep-learning (DL) approach ...
Paediatric Type1 Diabetes Management and Mothers’ Emotional Intelligence Interactions
The functioning of the parents’ emotional sphere is very important to a child’s mental and physical health. This study focused on investigating the association between mothers’ emotional intelligence (EI) and ...
Flavonoids in Lemon and Grapefruit IntegroPectin
Following the analysis of terpenes present in new lemon and grapefruit “IntegroPectin” pectins obtained via the hydrodynamic cavitation of industrial lemon and grapefruit processing waste, the HPLC-MS analysis of the ...
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Inclusion of COVID19 Preprints in the iSearch COVID-19 Portfolio

New Feature—Research Topics

Preservation Agreement Between Portico and Preprints

Our Policy on Submissions Related to COVID-19


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Authors upload their manuscript and supplementary files via the online submission system.
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Preprints editors carry out initial checks on content, decisions are made within 24 hours.
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Archived & Online
Preprints that pass the initial checks are posted online, are immediately citable and open for comments.
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We accept preprints from all fields, so your article will always be a good fit.
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Upload multiple versions of your paper: they will all be securely archived.
All preprints receive a digital object identifier (doi) to make them immediately citable.
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