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Browse the failure-mode index

21,229 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 ReportOpen accessDecision Sciences

The Null Result Penalty

Felix Chopra, Ingar Haaland, Christopher Roth et al. · 2023 · The Economic Journal

Abstract We examine how the evaluation of research studies in economics depends on whether a study yielded a null result. Studies with null results are perceived to be less publishable, of lower quality, less important and less precisely…

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Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology

Recent human evolution has shaped geographical differences in susceptibility to disease

Urko M. Marigorta, Óscar Lao, Ferrán Casals et al. · 2011 · BMC Genomics

BACKGROUND: Searching for associations between genetic variants and complex diseases has been a very active area of research for over two decades. More than 51,000 potential associations have been studied and published, a figure that keeps increasing, especially with the recent explosion of array-based Genome-Wide Association Studies. Even if the number of true associations described so far is high, many of the putative risk variants detected so far have failed to be consistently replicated and are widely considered false positives. Here, we focus on the world-wide patterns of replicability of

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Negative / Null Result ReportOpen accessMathematics

BIO-LGCA: A cellular automaton modelling class for analysing collective cell migration

Andreas Deutsch, Josué Manik Nava-Sedeño, Simon Syga et al. · 2021 · PLoS Computational Biology

Collective dynamics in multicellular systems such as biological organs and tissues plays a key role in biological development, regeneration, and pathological conditions. Collective tissue dynamics-understood as population behaviour arising from the interplay of the constituting discrete cells-can be studied with on- and off-lattice agent-based models. However, classical on-lattice agent-based models, also known as cellular automata, fail to replicate key aspects of collective migration, which is a central instance of collective behaviour in multicellular systems. To overcome drawbacks of class

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Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology

Type I IFN Does Not Promote Susceptibility to Foodborne Listeria monocytogenes

Michelle G. Pitts, Tanya Myers‐Morales, Sarah E. F. D’Orazio · 2016 · The Journal of Immunology

Type I IFN (IFN-α/β) is thought to enhance growth of the foodborne intracellular pathogen Listeria monocytogenes by promoting mechanisms that dampen innate immunity to infection. However, the type I IFN response has been studied primarily…

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Negative / Null Result ReportNeuroscience

Do emotions play an essential role in moral judgments?

William H.B. McAuliffe · 2018 · Thinking & Reasoning

The past few decades of moral psychology research have yielded empirical anomalies for rationalist theories of moral judgments. An increasing number of psychologists and philosophers argue that these anomalies are explained well by…

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Negative / Null Result ReportEngineering

MPCA SGD—A Method for Distributed Training of Deep Learning Models on Spark

Matthias Langer, Ashley Hall, Zhen He et al. · 2018 · IEEE Transactions on Parallel and Distributed Systems

Many distributed deep learning systems have been published over the past few years, often accompanied by impressive performance claims. In practice these figures are often achieved in high performance computing (HPC) environments with fast…

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Negative / Null Result ReportOpen accessEconomics, Econometrics and Finance

ENERGY CONSUMPTION, CO2 AND ECONOMIC GROWTH NEXUS IN VIETNAM

Giovanna Morelli, Marco Mele · 2020 · International Journal of Energy Economics and Policy

This study will demonstrate, through an econometric approach, the relationship among per capita GDP, CO2 emissions, and energy use in Vietnam. Using annual data for years 1970-2014, stationarity, structural breaks, Toda-Yamamoto test, Johansen and Juselius approach, and Variance decomposition have been conducted. The causality results in our analysis highlight that the presence of unidirectional causality was running from economic growth to energy consumption. This result will be significant since it supports the conservation hypothesis for the economy of Vietnam. Finally, the results of the v

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Negative / Null Result ReportOpen accessMedicine

Constitutive silencing of LRRK2 kinase activity leads to early glucocerebrosidase deregulation and late impairment of autophagy in vivo

Federica Albanese, Daniela Mercatelli, Luca Finetti et al. · 2021 · Neurobiology of Disease

Mutations in leucine-rich repeat kinase 2 (LRRK2) are associated with Parkinson's disease. LRRK2 modulates the autophagy-lysosome pathway (ALP), a clearance process subserving the quality control of cellular proteins and organelles. Since…

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Negative / Null Result ReportBiochemistry, Genetics and Molecular Biology

Alteration of digestive tract microbiome in neonatal Holstein bull calves by bacitracin methylene disalicylate treatment and scours1

Guohao Xie, Glenn C Duff, L.W. Hall et al. · 2013 · Journal of Animal Science

The effects of bacitracin methylene disalicylate (BMD) and scours on the fecal microbiome, animal performance, and health were studied in Holstein bull calves. Holstein bull calves (n = 150) were obtained from a single source at 12 to 24 h…

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Negative / Null Result ReportOpen accessComputer Science

Using causal models to bridge the divide between big data and educational theory

Kirsty Kitto, Ben Hicks, Simon Buckingham Shum · 2023 · British Journal of Educational Technology

Abstract An extraordinary amount of data is becoming available in educational settings, collected from a wide range of Educational Technology tools and services. This creates opportunities for using methods from Artificial Intelligence and…

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Negative / Null Result ReportOpen accessPsychology

Dyslexia and language impairment associated genetic markers influence cortical thickness and white matter in typically developing children

on behalf of the Pediatric Imaging Neurocognition Genetics study, John D. Eicher, Angela Montgomery et al. · 2015 · Brain Imaging and Behavior

Dyslexia and language impairment (LI) are complex traits with substantial genetic components. We recently completed an association scan of the DYX2 locus, where we observed associations of markers in DCDC2, KIAA0319, ACOT13, and FAM65B with reading-, language-, and IQ-related traits. Additionally, the effects of reading-associated DYX3 markers were recently characterized using structural neuroimaging techniques. Here, we assessed the neuroimaging implications of associated DYX2 and DYX3 markers, using cortical volume, cortical thickness, and fractional anisotropy. To accomplish this, we examin

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Negative / Null Result ReportMedicine

CYP3A4*22 Impairs the Elimination of Ticagrelor, But Has No Significant Effect on the Bioactivation of Clopidogrel or Prasugrel

Mikko T. Holmberg, Aleksi Tornio, Maria Paile‐Hyvärinen et al. · 2018 · Clinical Pharmacology & Therapeutics

CYP3A enzymes participate in the elimination of ticagrelor and the bioactivation of clopidogrel and prasugrel. We studied the effects of functional CYP3A genetic variants (CYP3A4*22; rs35599367 and CYP3A5*3; rs776746) on the…

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Failed Experiment ReportOpen accessMedicine

A multi‐centre, single‐arm, open‐label study evaluating the safety and efficacy of fixed dose rituximab in patients with refractory, relapsed or chronic idiopathic thrombocytopenic purpura (R‐ITP1000 study)

Huyen Tran, Tim Brighton, Andrew Grigg et al. · 2014 · British Journal of Haematology

The efficacy of a fixed-dose rituximab schedule was prospectively explored in primary/acute refractory, relapsed or chronic (platelet count >10 × 10(9) /l and ≤50 × 10(9) /l) idiopathic thrombocytopenic purpura (ITP). Patients received two…

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Negative / Null Result ReportOpen accessPsychology

Motivational interviewing and self-determination theory in a web-based computer tailored physical activity intervention: A randomized controlled trial

Stijn A.H. Friederichs, Anke Oenema, Catherine Bolman et al. · 2016 · Psychology and Health

OBJECTIVE: This study explores whether a web-based physical activity (PA) intervention grounded in self-determination theory (SDT) and motivational interviewing (MI) is more effective and better appreciated than a traditional web-based PA…

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Negative / Null Result ReportOpen accessMedicine

Peak Width of Skeletonized Water Diffusion MRI in the Neonatal Brain

Manuel Blesa, Paola Galdi, Gemma Sullivan et al. · 2020 · Frontiers in Neurology

Preterm birth is closely associated with cognitive impairment and generalized dysconnectivity of neural networks inferred from water diffusion MRI (dMRI) metrics. Peak width of skeletonized mean diffusivity (PSMD) is a metric derived from histogram analysis of mean diffusivity across the white matter skeleton, and it is a useful biomarker of generalized dysconnectivity and cognition in adulthood. We calculated PSMD and five other histogram based metrics derived from diffusion tensor imaging (DTI) and neurite orientation and dispersion imaging (NODDI) in the newborn, and evaluated their accurac

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Negative / Null Result ReportOpen accessNeuroscience

Cerebrospinal Fluid Biomarkers in Spinocerebellar Ataxia: A Pilot Study

Ashley M. Brouillette, Gülin Öz, Christopher M. Gómez · 2015 · Disease Markers

Neurodegenerative diseases, including the spinocerebellar ataxias (SCA), would benefit from the identification of reliable biomarkers that could serve as disease subtype-specific and stage-specific indicators for the development and monitoring of treatments. We analyzed the cerebrospinal fluid (CSF) level of tau, α-synuclein, DJ-1, and glial fibrillary acidic protein (GFAP), proteins previously associated with neurodegenerative processes, in patients with the autosomal dominant SCA1, SCA2, and SCA6, and the sporadic disease multiple system atrophy, cerebellar type (MSA-C), compared with age-ma

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Negative / Null Result ReportOpen accessMedicine

Effect of postoperative radiotherapy on survival for surgically managed pT3N0 and pT4aN0 laryngeal cancer: Analysis of the National Cancer Data Base

Evan M. Graboyes, Kevin Y. Zhan, Elizabeth Garrett‐Mayer et al. · 2017 · Cancer

BACKGROUND: The current study was conducted to determine the effect of postoperative radiotherapy (PORT) on overall survival in patients with surgically managed pT3-T4aN0 laryngeal squamous cell carcinoma (SCC). METHODS: A review of the…

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Negative / Null Result ReportOpen accessMedicine

Randomized multicentre feasibility trial of intermediate care versus standard ward care after emergency abdominal surgery (InCare trial)

Morten Vester‐Andersen, Tina Waldau, Jørn Wetterslev et al. · 2015 · British journal of surgery

BACKGROUND: Emergency abdominal surgery carries a considerable risk of death and postoperative complications. Early detection and timely management of complications may reduce mortality. The aim was to evaluate the effect and feasibility…

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Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology

Elevated de novo protein synthesis in FMRP-deficient human neurons and its correction by metformin treatment

Kagistia Hana Utami, Nur Amirah Binte Mohammad Yusof, Jing Eugene Kwa et al. · 2020 · Molecular Autism

FXS is the most common genetic cause of intellectual (ID) and autism spectrum disorders (ASD). FXS is caused by loss of FMRP, an RNA-binding protein involved in the translational regulation of a large number of neuronal mRNAs. Absence of FMRP has been shown to lead to elevated protein synthesis and is thought to be a major cause of the synaptic plasticity and behavioural deficits in FXS. The increase in protein synthesis results in part from abnormal activation of key protein translation pathways downstream of ERK1/2 and mTOR signalling. Pharmacological and genetic interventions that attenuate

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Negative / Null Result ReportMedicine

Randomized clinical trial of extensive intraoperative peritoneal lavage versus standard treatment for resectable advanced gastric cancer (CCOG 1102 trial)

Kazunari Misawa, Yoshinari Mochizuki, Munetoshi Sakai et al. · 2019 · British journal of surgery

BACKGROUND: A survival benefit of extensive intraoperative peritoneal lavage (EIPL) has been reported in patients with gastric cancer with positive peritoneal cytology. The hypothesis of this study was that EIPL may reduce peritoneal…

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Negative / Null Result ReportOpen accessMedicine

Phenotyping of difficult asthma using longitudinal physiological and biomarker measurements reveals significant differences in stability between clusters

Tasneem Zaihra, Christopher J. Walsh, Sara Ahmed et al. · 2016 · BMC Pulmonary Medicine

BACKGROUND: Although the heterogeneous nature of asthma has prompted asthma phenotyping with physiological or biomarker data, these studies have been mostly cross-sectional. Longitudinal studies that assess the stability of phenotypes based on a combination of physiological, clinical and biomarker data are currently lacking. Our objective was to assess the longitudinal stability of clusters derived from repeated measures of airway and physiological data over a 1-year period in moderate and severe asthmatics. METHODS: A total of 125 subjects, 48 with moderate asthma (MA) and 77 with severe asth

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Negative / Null Result ReportOpen accessMedicine

Fluid balance control in critically ill patients: results from POINCARE-2 stepped wedge cluster-randomized trial

Pierre‐Édouard Bollaert, Alexandra Monnier, Francis Schneider et al. · 2023 · Critical Care

BACKGROUND: In critically ill patients, positive fluid balance is associated with excessive mortality. The POINCARE-2 trial aimed to assess the effectiveness of a fluid balance control strategy on mortality in critically ill patients. METHODS: POINCARE-2 was a stepped wedge cluster open-label randomized controlled trial. We recruited critically ill patients in twelve volunteering intensive care units from nine French hospitals. Eligible patients were ≥ 18 years old, under mechanical ventilation, admitted to one of the 12 recruiting units for > 48 and ≤ 72 h, and had an expected length of stay

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Negative / Null Result ReportOpen accessMedicine

Continuous neuromuscular blockade infusion for out-of-hospital cardiac arrest patients treated with targeted temperature management: A multicenter randomized controlled trial

Byung Kook Lee, In Soo Cho, Joo Suk Oh et al. · 2018 · PLoS ONE

INTRODUCTION: The aim of this trial was to investigate the effect of a continuous infusion of a neuromuscular blockade (NMB) in comatose out-of-hospital cardiac arrest (OHCA) subjects who underwent targeted temperature management (TTM). METHODS: In this open-label, multicenter trial, subjects resuscitated from OHCA were randomly assigned to receive either NMB (38 subjects) or placebo (43 subjects) for 24 hours. Sedatives and analgesics were given according to the protocol of each hospital during TTM. The primary outcome was serum lactate levels at 24 hours after drug infusion. The secondary ou

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