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Failure-mode index

Search what already failed

A searchable index of real negative results, null findings, and replication failures from the published literature — so you can learn what didn't work before repeating it.

WASTE indexes published research — it does not host or republish full papers. Each entry is a metadata record (title, authors, DOI) compiled from open scholarly databases, with the abstract shown in full only where the paper is openly licensed (e.g. Creative Commons); otherwise a short excerpt is shown for reference under fair use. WASTE classifies each work by failure type; classifications are automated and approximate.

21742 results · page 667 of 725

Negative / Null Result ReportMedicine

Nationwide Survey of Laboratory Practices for Factor VIII Inhibitor Detection in China.

Wang Y, Kong X, Wei H et al. · 2025 · Haemophilia : the official journal of the World Federation of Hemophilia

Introduction The Bethesda assay (BA) and the Nijmegen-Bethesda assay (NBA) are commonly used to measure inhibitors in patients with haemophilia A (HA). The laboratory results of inhibitor assays have been demonstrated to be highly…

View details →DOI: 10.1111/hae.70084
Failed Experiment Report

† Cryptovaranoides is not a squamate

Caldwell MW, Brownstein CD, Meyer DL et al. · 2025 · Preprint

Accurate reconstruction of the timescale of organismal evolution requires placement of extinct representatives among living branches. In this way, the fossil record has the capacity to revise hypotheses of organismal evolution by producing…

View details →DOI: 10.1101/2025.04.18.649532
Negative / Null Result ReportMedicine

Polymerase chain reaction fails to detect mixed malaria infections in siblings from Ethiopia.

Hall AD, Whitehurst DA, Mortensen JE et al. · 2025 · Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy

Malaria remains a significant public health concern in sub-Saharan Africa, particularly in Ethiopia where Plasmodium falciparum and Plasmodium vivax are co-endemic. Most cases in the United States are acquired abroad and imported.…

View details →DOI: 10.1016/j.jiac.2025.102777
Negative / Null Result ReportMedicine

Real-time PCR versus culture of bronchoalveolar lavage fluid for detecting Bordetella bronchiseptica in dogs with persistent lower respiratory signs: a retrospective study of 23 cases.

Atencia S, Mateu N, Rodríguez-Cobos A et al. · 2025 · Veterinary research communications

Bordetella bronchiseptica (Bb) is a frequent pathogen in dogs and a component of the Canine Infectious Respiratory Disease Complex (CIRDC). However, it can also be detected in the lower respiratory tract of healthy animals, complicating…

View details →DOI: 10.1007/s11259-025-10826-5
Negative / Null Result ReportOpen accessMedicine

Using Next Generation Chemiluminescent Probes to Improve the <i>Plasmodium falciparum</i> <i>in vitro</i> Parasite Reduction Ratio (PRR) Assay.

Hellingman A, Göttle NL, Walz A et al. · 2026 · ACS infectious diseases

Malaria remains a major global health threat, and the emergence of partial artemisinin resistance challenges current treatment regimens. Reliable antimalarial screening assays are therefore essential for identifying new drug candidates.…

View details →DOI: 10.1021/acsinfecdis.5c00924
Negative / Null Result ReportOpen accessMedicine

Inferior Sinus Venosus Defect: Inconclusive Transesophageal Echocardiography Clarified by Computed Tomography and Intracardiac Echocardiography.

Hashimoto G, Tsukagoshi Y, Saito A et al. · 2026 · JACC. Case reports

Background Inferior sinus venosus (SV) atrial septal defect (ASD) is a rare interatrial communication, found near the inferior vena cava (IVC)-right atrial (RA) junction, that may be overlooked on transesophageal echocardiography (TEE).…

View details →DOI: 10.1016/j.jaccas.2026.107644
Negative / Null Result ReportOpen accessMedicine

Molecular detection of transcriptionally active ovine papillomaviruses in commercial equine semen.

Cutarelli A, De Falco F, Brunetti R et al. · 2024 · Frontiers in veterinary science

Virological evaluation was performed on equine semen to detect the presence of papillomaviruses (PVs) using droplet digital polymerase chain reaction (ddPCR) as the aim of this study was to investigate whether the sperm from asymptomatic…

View details →DOI: 10.3389/fvets.2024.1427370
Negative / Null Result ReportMedicine

Evaluation of loop mediated isothermal amplification, quantitative real-time PCR, conventional PCR methods for identifying Ascaris lumbricoides in human stool samples.

Thakur M, Mewara A, Lakshmi P et al. · 2025 · Diagnostic microbiology and infectious disease

Ascariasis, caused by Ascaris lumbricoides, is a widespread parasitic infection. Traditional diagnostic methods, such as microscopy, can miss infections with low worm burdens, leading to false negatives. This study compares four diagnostic…

View details →DOI: 10.1016/j.diagmicrobio.2025.116808
Negative / Null Result ReportMedicine

Complexities of Atrial Fibrosis Imaging: Exploring Relationships Between Endocardial Voltage, Extracellular Volume, and Sympathetic Innervation.

Wilk B, Lim H, Hicks J et al. · 2025 · JACC. Clinical electrophysiology

Background Atrial fibrillation is associated with abnormal synchronization of left atrial electrical activity and substantially increased risk of myocardial infarction, stroke and heart failure. Objectives This study sought to investigate,…

View details →DOI: 10.1016/j.jacep.2025.02.012
Negative / Null Result ReportMedicine

Accuracy of artificial intelligence-based simulation for assessing lung vessels and volume using unenhanced computed tomography.

Fukuta K, Shimada Y, Nagamatu Y et al. · 2025 · European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery

Objectives The advantages of preoperative three-dimensional (3D) image simulations, which require enhanced computed tomography (ECT), for anatomical lung resection are well documented. However, the necessity for contrast agent presents a…

View details →DOI: 10.1093/ejcts/ezae449
Failed Experiment ReportOpen accessMedicine

Loss of the distal-proximal GLP-1/Notch activation gradient in the aging <i>C. elegans</i> germline.

Janse van Vuuren R, Martel PO, Narbonne P · 2025 · microPublication biology

In C. elegans hermaphrodites, the distal tip cells (DTCs) capping the gonad arms provide a Notch ligand, the niche signal that maintains germline stem cell pools. Using fixed germlines, it was recently shown that the transcription of a…

View details →DOI: 10.17912/micropub.biology.001908
Negative / Null Result ReportMedicine

Investigating disparity in labor epidural analgesia management in black vs. white women: a retrospective case-control study (2018-2022).

Clifton J, Woodward S, Hardcastle S et al. · 2025 · International journal of obstetric anesthesia

Background Disparities in labor epidural analgesia (LEA) management could reduce maternal satisfaction and increase risk. We compared times from the first administration of breakthrough pain medication (top-up) to LEA replacement to…

View details →DOI: 10.1016/j.ijoa.2024.104327
Negative / Null Result ReportMedicine

Evaluation of the AMP rapid test ROTA/ADENOVIRUS for simultaneous detection of rotavirus and adenovirus in stool samples.

Allahham M, Rennert W, Miller KM et al. · 2025 · European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology

Background Rotavirus (RV) and Adenovirus (AdV) gastroenteritis affect children worldwide. The sensitivity and specificity of the AMP Rapid Test ROTA/ADENOVIRUS [AMP-RA] for the detection of RV and AdV were compared against qPCR Allplex™…

View details →DOI: 10.1007/s10096-025-05042-7
Negative / Null Result ReportMedicine

Twenty-one days of bed rest alter motor unit properties and neuromuscular junction transmission in young adults.

Sarto F, Kalc M, Motanova ES et al. · 2025 · Journal of applied physiology (Bethesda, Md. : 1985)

Previous studies showed that properties of higher-threshold motor units (MUs) and neuromuscular junction (NMJ) function are preserved during short-term disuse. This study aimed to test how a longer disuse period affects MU properties, NMJ…

View details →DOI: 10.1152/japplphysiol.00178.2025
Negative / Null Result ReportOpen accessMedicine

Diagnostic Performance of Cardiac CT and Transthoracic Echocardiography in Congenital Heart Disease: A Surgical Correlation Study.

Bakhshaliyev S, Arslanoğlu E, Huseynov H et al. · 2026 · Diagnostics (Basel, Switzerland)

Background : This study evaluated the diagnostic efficacy of transthoracic echocardiography (TTE) and 128-slice multislice computed tomography (MSCT) angiography in congenital heart disease (CHD). Methods : Between January 2018 and August…

View details →DOI: 10.3390/diagnostics16020259
Negative / Null Result ReportMedicine

Significance of Variants of Uncertain Significance: The Human Cost of Genetic Uncertainty.

Gonullu-Rotman D · 2024 · American journal of medical genetics. Part C, Seminars in medical genetics

This piece narrates the journey of Maria (name of the mother has been altered to protect the family's privacy), a new mother confronting her newborn's unexpected diagnosis of very long chain acyl-CoA dehydrogenase (VLCAD) deficiency,…

View details →DOI: 10.1002/ajmg.c.32109
Negative / Null Result ReportOpen accessMedicine

Reevaluating the senolytic activity of a GLS1 inhibitor and an anti-PD-1 antibody: toward greater reproducibility and methodological rigor.

Kawamoto S, Horiguchi H, Torigoe D et al. · 2026 · EMBO reports

The discovery of the senescence-associated secretory phenotype (SASP) has reshaped our understanding of cellular senescence, shifting its role from a solely tumor-suppressive mechanism to a potential driver of chronic inflammation and…

View details →DOI: 10.1038/s44319-026-00740-5
Negative / Null Result ReportOpen accessMedicine

Double pyramidal lobe of the thyroid gland: report of two consecutive cases with surgical and oncologic implications.

Ağar ET, Yüksel C · 2026 · Journal of surgical case reports

The pyramidal lobe (PL) of the thyroid gland is a common embryological remnant; however, the presence of double PLs is an exceptionally rare anatomical variation. Failure to recognize this anomaly may result in incomplete thyroidectomy,…

View details →DOI: 10.1093/jscr/rjag049
Negative / Null Result ReportMedicine

Post-hoc out-of-distribution detection for cardiac MRI segmentation.

Arega TW, Bricq S, Meriaudeau F · 2025 · Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society

In real-world scenarios, medical image segmentation models encounter input images that may deviate from the training images in various ways. These differences can arise from changes in image scanners and acquisition protocols, or even the…

View details →DOI: 10.1016/j.compmedimag.2024.102476
Negative / Null Result ReportMedicine

Reliability of brain localization using task-based fMRI for late-life depression with suicidal risk.

Hsu AL, Wu CW, Huang CM et al. · 2025 · Journal of psychiatric research

Late-life depression (LLD) is a heterogeneous mental disorder with a high risk of suicide, often linked to abnormalities in brain networks, particularly the prefrontal cortex. While transcranial magnetic stimulation targeting the dorsal…

View details →DOI: 10.1016/j.jpsychires.2025.04.053
Failed Experiment ReportOpen accessMedicine

Domain-specific cognitive screening in acute first-ever stroke: a comparative study of the Oxford Cognitive Screen (OCS) and ACE-III.

Tanglay O, Jhunjhnuwala D, Huynh W · 2025 · Frontiers in human neuroscience

Introduction Post-stroke cognitive impairment (PSCI) is common and often under-recognized, particularly in the acute phase. Most cognitive screening tools provide only a global score, overlooking domain-specific deficits that influence…

View details →DOI: 10.3389/fnhum.2025.1678230
Negative / Null Result ReportMedicine

FilmArray® effectively detects all clades of F41 but encounters challenges with other adenovirus species.

Ito S, Takano C, Hoque SA et al. · 2025 · Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy

The BioFire FilmArray® Gastrointestinal (GI) Panel, a widely used diagnostic tool, is designed to detect the genetic material of 22 common pathogens responsible for gastroenteritis, including viruses, bacteria, and parasites. It can detect…

View details →DOI: 10.1016/j.jiac.2025.102626
Negative / Null Result ReportOpen accessMedicine

Gastrointestinal cancer with indeterminate <sup>18</sup>F-FDG PET/CT findings: Diagnostic efficacy analysis of <sup>68</sup>Ga-FAPI-04 PET/MRI.

Miao J, Xu Y, Qiao F et al. · 2026 · Oncology letters

The present prospective study aimed to investigate whether gallium-68-labeled fibroblast activation protein inhibitor-04 ( 68 Ga-FAPI-04) positron emission tomography (PET)/magnetic resonance imaging (MRI) could provide notably increased…

View details →DOI: 10.3892/ol.2026.15647