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Browse the failure-mode index

21,247 real negative results, null findings, and replication failures. Search the index →

WASTE indexes published research — it does not host or republish full papers. Each entry is a metadata record compiled from open scholarly databases; the abstract is shown in full only where the paper is openly licensed, otherwise a short excerpt under fair use. Classifications are automated and approximate.

Negative / Null Result Report

Cross‐sectional survey of the replacement of the Japanese term for dementia: Did it reduce discomfort in family members?

Katsuo Yamanaka, Naoya Todo, Mutsumi Yoshizawa et al. · 2020 · Brain and Behavior

Abstract Objectives Decreasing discrimination and stigma of dementia is an international issue. In 2004, the Japanese government changed the previous Japanese stigmatic term of dementia (“Chiho”) to the present one (“Ninchi‐sho”) a meaning…

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Negative / Null Result Report

What if we Find Nothing? Bayesian Analysis of the Statistical Information of Null Results in Future Exoplanet Habitability and Biosignature Surveys

Daniel Angerhausen, Amedeo Balbi, Andjelka B. Kovačević et al. · 2025 · The Astronomical Journal

Abstract Future telescopes will survey temperate, terrestrial exoplanets to estimate the frequency of habitable ( η Hab ) or inhabited ( η Life ) planets. This study aims to determine the minimum number of planets ( N ) required to draw…

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Negative / Null Result Report

Early Hip Fracture Surgery Within 24 hours did not Reduce the Mortality Rate but Resulted in Less Postoperative Opioid use and a Shorter Length of Stay: A Retrospective Study of 276 Patients From a Tertiary Private Hospital in Thailand

Aasis Unnanuntana, Chirathit Anusitviwat, Vasu Lertsiripatarajit et al. · 2024 · Geriatric Orthopaedic Surgery & Rehabilitation

Introduction The comparative results of early hip fracture surgery including mortality and postoperative complications in Thailand were not reported. Therefore, we conducted this study to compare the outcomes between patients who received…

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Negative / Null Result Report

Uropathogenic Escherichia coli causes significant urothelial damage in an ex vivo porcine bladder model, with no protective effect observed from cranberry or d -mannose

Jenane Konesan, Kate H Moore, Kylie J Mansfield et al. · 2024 · Pathogens and Disease

Abstract Urinary tract infections (UTIs), primarily caused by uropathogenic Escherichia coli (UPEC), have an unclear impact on bladder mucosal physiology. This study investigates UPEC’s effects on the urothelium and lamina propria using an…

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Negative / Null Result Report

Designing a set of criteria for evaluating artificial neural networks trained with physics-based data to replicate molecular dynamics and other particle method trajectories

Alessio Alexiadis · 2024 · Frontiers in Nanotechnology

This article presents an in-depth analysis and evaluation of artificial neural networks (ANNs) when applied to replicate trajectories in molecular dynamics (MD) simulations or other particle methods. This study focuses on several…

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Negative / Null Result Report

Modulation of environmental conditions on the significant difference in the super cyclone formation rate during the pre- and post-monsoon seasons over the Bay of Bengal

Zhi Li, Yuhuan Xue, Yue Fang et al. · 2021 · Climate Dynamics

Abstract Unlike other tropical ocean basins, the Bay of Bengal (BoB) has two tropical cyclone (TC) seasons: a pre-monsoon season (Pre-MS) and a post-monsoon season (Post-MS). More interestingly, during the period from 1981 to 2016, the…

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Negative / Null Result Report

An implementation of Bubble Magnification did not improve the video comprehension of individuals with central vision loss

Francisco M Costela, Stephanie M Reeves, Russell L Woods · 2021 · Ophthalmic and Physiological Optics

Abstract Purpose People with central vision loss (CVL) watch television, videos and movies, but often report difficulty and have reduced video comprehension. An approach to assist viewing videos is electronic magnification of the video…

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Negative / Null Result Report

Bit Security as Cost to Demonstrate Advantage

Keewoo Lee · 2024 · IACR Communications in Cryptology

We revisit the question of what the definition of bit security should be, previously answered by Micciancio-Walter (Eurocrypt 2018) and Watanabe-Yasunaga (Asiacrypt 2021). Our new definition is simple, but (i) captures both search and…

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Negative / Null Result Report

Editorial Commentary : Surgical Treatment of Shoulder Instability With Subcritical Glenoid Bone Loss Requires Innovation: Bankart May Risk Significant Recurrence and Latarjet May Risk Significant Complications

Sarah B. Shubert · 2021 · Arthroscopy

Abstract The patient with a history of shoulder dislocation and subcritical (10%‐15%) glenoid bone loss presents a complicated scenario. The “safest” procedure (arthroscopic Bankart repair) may result in a high rate of failure and risk of…

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Negative / Null Result Report

An Application of Difference-in-Difference-Difference Model

Thomas Russell Harris, Sankar Mukhopadhyay, Nathan Wiseman · 2016 · Public Works Management & Policy

Institutional laws and arrangements such as prevailing wage laws influence the employment levels and wage rates of the local labor supply. Conflicting research, however, has shown that prevailing wage laws lead to higher construction…

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Negative / Null Result Report

Statins, metformin, and RAS inhibitors did not reduce variceal bleeding risk and mortality in a large, real-life cohort of patients with cirrhosis

Nikolaus Pfisterer, Michael Schwarz, Caroline Schwarz et al. · 2024 · PLOS ONE

Background Previous experimental and clinical studies suggested a beneficial effect of statins, metformin, angiotensin-converting-enzyme inhibitors and angiotensin II receptor blockers (RASi) on portal hypertension. Still, their effects on…

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Negative / Null Result Report

Short message service cancellation intervention to reduce integrated sexual health and HIV ‘did not attend’ appointment rates

Andrew Tomkins, Sam Naylor, Emile Morgan · 2018 · International Journal of STD & AIDS

Did not attend (DNA) appointments create a significant impact upon resource and finance efficiency in the NHS. Despite introduction of short-message service (SMS) reminders to our patients, DNA rates remained persistently high. An option…

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