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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.

20261 results in Negative / Null Result Report · page 499 of 676

Negative / Null Result ReportMedicine

The Association Between Childhood Neighborhood Environment and Depressive Symptoms Among Chinese Rural Older Adults: A Gender-Moderated Analysis from a Life Course Perspective.

Chen L, Wang Y, Sun N et al. · 2026 · Journal of gerontological social work

Life course theory links early-life experiences to late-life depression, yet research on childhood neighborhood effects among rural older adults-especially gendered differences-remains limited. Analyzing 2014-2018 CHARLS data of 8,034…

View details →DOI: 10.1080/01634372.2026.2647353
Negative / Null Result ReportMedicine

Hemoglobin glycation index may contextualize the association between time-varying stress hyperglycemia ratio and mortality in critically ill patients with heart failure: a multicenter retrospective cohort study.

Chen Y, Cai Y, Sha Y et al. · 2026 · Cardiovascular diabetology

Background Stress hyperglycemia is associated with adverse outcomes in critically ill patients, yet the optimal metric and the influence of chronic glycemic background remain unclear. The stress hyperglycemia ratio (SHR) adjusts acute…

View details →DOI: 10.1186/s12933-026-03262-5
Negative / Null Result Report

Predicting Intrinsic Motivation After an Adventure Education Program in Primary Schools: Enjoyment, Self-Confidence and Resilience According to Gender

Calmaestra A, Baena-Extremera A, González-Ruiz J et al. · 2026 · Preprint

This study aimed to analyse the effects of a parkour-based Adventure Education (AE) program on the intrinsic motivation of primary school students, and to examine the role of enjoyment, self-confidence, and resilience as associated and…

View details →DOI: 10.20944/preprints202604.0521.v1
Negative / Null Result ReportMedicine

Time is of the Essence! Long-Term Functional, Motor and Sensory Outcomes After Surgical Fixation of Pediatric Medial Epicondyle Fractures: A Retrospective Cohort Study.

Akın AE, Erkan S, Okcu G · 2026 · Journal of pediatric orthopedics

Background Medial epicondyle fractures represent a common pediatric elbow injury, yet a definitive consensus on treatment remains absent. In literature, long-term sensory and motor outcomes after surgical fixation remain underreported.…

View details →DOI: 10.1097/bpo.0000000000003317
Negative / Null Result ReportMedicine

Differential effects of primary and latent syphilis co-infection on immune reconstitution and virological failure in HIV-positive adults on ART.

Shi L, Liu X, Qiu T et al. · 2026 · BMC public health

Background HIV and syphilis are sexually transmitted diseases (STDs) that share transmission routes and risks factors. Many countries face the dual challenge of HIV and syphilis epidemics. Co-infection can mutually accelerate disease…

View details →DOI: 10.1186/s12889-026-28199-y
Negative / Null Result ReportOpen accessMedicine

Bacteria in stable fly (Diptera: Muscidae) feces inform foraging decisions of conspecific flies.

Hung E, Negraeff A, Watson C et al. · 2026 · Journal of medical entomology

Blood-feeding stable flies, Stomoxys calcitrans (L.), are reportedly attracted to conspecific feces. We investigated whether stable flies are attracted to fly feces-derived bacteria, and whether attraction varies with bacterial species and…

View details →DOI: 10.1093/jme/tjag084
Negative / Null Result ReportMedicine

Impacts of a Gamified Nutrition and Physical Activity Curriculum for High Schoolers from Communities with Low Income: Rev It Up!

Bastian GE, Desai-Shah H, Fitzgerald N et al. · 2026 · Journal of nutrition education and behavior

Objective Evaluate the impacts of an evidence-based, school-based, gamified nutrition education curriculum (Rev It Up!) for high schoolers from communities with low income. Methods Secondary analysis of 2021-2022 New Jersey Expanded Food…

View details →DOI: 10.1016/j.jneb.2026.04.009
Negative / Null Result Report

Effects of Exogenous Fibrolytic Enzymes on Growth Performance, Nutrient Digestibility, Haematological and Serum Biochemical Indices, and Manure Output of Kano Brown Bucks

Ibrahim RS, Abbas MW, Nasiru A · 2026 · Preprint

Abstract Background: Exogenous enzymes are increasingly used in ruminant nutrition to improve feed utilization and reduce nutrient losses. This study evaluated the the effects of different exogenous enzyme inclusions on growth performance,…

View details →DOI: 10.21203/rs.3.rs-8833196/v1
Negative / Null Result ReportMedicine

The Association of Energy Distribution Between Dinner and Breakfast With Depressive Symptoms in Early Pregnancy.

Jiang Y, Luo J, Zheng L et al. · 2026 · The journal of obstetrics and gynaecology research

Aim To examine the association between the distribution of energy and macronutrients between dinner and breakfast and depressive symptoms in early pregnancy. Methods This study used baseline data from a maternity cohort conducted in Wuhan,…

View details →DOI: 10.1111/jog.70298
Negative / Null Result ReportMedicine

Tag-Along Virtual Windows Increase Perceived Resistance and Task Load in Augmented Reality.

Kagami M, Kataoka Y, Hirao Y et al. · 2026 · IEEE transactions on visualization and computer graphics

Augmented Reality (AR) can enhance accessibility by anchoring virtual windows to the user's body. Among common approaches, head-following windows help maintain floating virtual windows within the user's field of view. Previous studies have…

View details →DOI: 10.1109/tvcg.2026.3679137
Negative / Null Result ReportMedicine

Perceived prosodic typicality in Finnish preadolescents: Findings from speakers on the autism spectrum.

Myllylä IL, Wiklund M, Haakana V et al. · 2026 · Clinical linguistics & phonetics

Speech of persons on the autism spectrum is often described as prosodically distinctive, yet the perceptual basis and acoustic correlates of these judgements remain undefined. We investigated how prosodic typicality is perceived in…

View details →DOI: 10.1080/02699206.2026.2642726
Negative / Null Result ReportOpen accessMedicine

Optimising the caffeine nap for counteracting driver sleepiness in CPAP treated obstructive sleep apnoea patients.

Filtness AJ, Miller KA, Maynard S et al. · 2026 · Scientific reports

Driver sleepiness contributes to a substantial proportion of road crashes. Drivers experiencing sleepiness are advised to take a break and have a caffeinated drink followed by a short nap (caffeine nap). However, previous research…

View details →DOI: 10.1038/s41598-026-42894-1
Negative / Null Result Report

Testing though-probe frequency for measuring mind-wandering along with vigilance and cognitive control loss: a study with the ANTI-Vea task

Aguirre MJ, Barttfeld P, Martín-Arévalo E et al. · 2026 · Preprint

The decrease in vigilance refers to the decline in sustained attention during prolonged tasks, which often leads to increased errors and accidents. However, to date, there are no experimental tasks that simultaneously measure changes in…

View details →DOI: 10.31234/osf.io/y6w5b_v1
Negative / Null Result ReportMedicine

Effectiveness of passive vs. assistive robotic gait training on functional recovery and neuroplasticity post-stroke: A randomized controlled trial.

Xie YJ, Song MS, Ma XD et al. · 2026 · Gait & posture

Objective This study seeks to compare the impacts of various robotic gait training (RAGT) modes on lower limb motor function recovery in stroke patients while exploring the corresponding neural mechanisms. Design A single-blind, randomized…

View details →DOI: 10.1016/j.gaitpost.2026.110249
Negative / Null Result ReportOpen accessMedicine

Willingness to work for sucrose: Impact of schedules, reinforcer alternatives, homeostatic value, and individual differences in male mice.

Arias-Sandoval E, Carratalá-Ros C, Matas-Navarro P et al. · 2026 · Learning & behavior

Motivated behavior is characterized by a high degree of behavioral activation and effort. Preclinical models of operant effort-based decision-making are useful for studying motivational symptoms seen in many psychopathologies as well as…

View details →DOI: 10.3758/s13420-025-00695-y
Negative / Null Result Report

Relationships between functional performance, body composition, and biochemical markers of stress, muscle damage, and inflammation in young men's team sport athletes. Implications for Game-Based Training

Widłak P, Malara M, Kuk A et al. · 2026 · Preprint

Abstract Movement quality and postural control are crucial for performance and injury prevention in team-sport athletes. Although FMS and YBT are commonly used, their ability to predict injury risk is limited when used alone. Therefore,…

View details →DOI: 10.21203/rs.3.rs-9464599/v1
Negative / Null Result ReportMedicine

Does body weight affect body self-image perception among tribal adolescent girls and boys?

Chowdhury A, Dasgupta D · 2026 · Anthropologischer Anzeiger; Bericht uber die biologisch-anthropologische Literatur

Objective : Present study delineates to explore the relation of actual body weight and body self-image perception among tribal adolescent girls and boys. Materials and methods : This cross sectional study is conducted at Purulia district…

View details →DOI: 10.1127/anthranz/1945
Negative / Null Result ReportOpen accessMedicine

Short lifespan under dietary cholesterol depletion is associated with gut dysfunction in Drosophila melanogaster females.

Zanco B, Mirth CK, Sgrò CM et al. · 2026 · npj aging

Dietary restriction may extend lifespan by improving late-life gut health. Because micronutrients mediate the effects of macronutrient ratios on longevity, we examined how cholesterol limitation affects gut health in female Drosophila…

View details →DOI: 10.1038/s41514-026-00341-5
Negative / Null Result ReportOpen accessPhysics

From Light to Energy: Machine Learning Algorithms for Position and Energy Deposition Estimation in Scintillator-SiPM detectors

Yoav Simhon, Alex Segal, Ofer Amrani et al. · 2025 · arXiv

Scintillator-SiPM Particle Detectors (SSPDs) are compact, low-power devices with applications including particle physics, underground tomography, cosmic-ray studies, and space instrumentation. They are based on a prism-shaped scintillator with corner-mounted SiPMs. Previous work has demonstrated that analytic algorithms based on a physical model of light propagation can reconstruct particle impinging positions and tracks and estimate deposited energy and Linear Energy Transfer (LET) with moderate accuracy. In this study, we enhance this approach by applying machine learning (ML) methods, speci

Negative / Null Result ReportOpen accessComputer Science

Evaluating Large Language Models for Time Series Anomaly Detection in Aerospace Software

Yang Liu, Yixing Luo, Xiaofeng Li et al. · 2026 · arXiv

Time series anomaly detection (TSAD) is essential for ensuring the safety and reliability of aerospace software systems. Although large language models (LLMs) provide a promising training-free alternative to unsupervised approaches, their effectiveness in aerospace settings remains under-examined because of complex telemetry, misaligned evaluation metrics, and the absence of domain knowledge. To address this gap, we introduce ATSADBench, the first benchmark for aerospace TSAD. ATSADBench comprises nine tasks that combine three pattern-wise anomaly types, univariate and multivariate signals, an

Negative / Null Result ReportOpen accessComputer Science

Domain Decomposition Based High Performance Parallel Computing

Mandhapati P. Raju, Siddhartha Khaitan · 2009 · arXiv

The study deals with the parallelization of finite element based Navier-Stokes codes using domain decomposition and state-ofart sparse direct solvers. There has been significant improvement in the performance of sparse direct solvers. Parallel sparse direct solvers are not found to exhibit good scalability. Hence, the parallelization of sparse direct solvers is done using domain decomposition techniques. A highly efficient sparse direct solver PARDISO is used in this study. The scalability of both Newton and modified Newton algorithms are tested.

Negative / Null Result ReportOpen accessEngineering

Lung Nodule Classification Using Biomarkers, Volumetric Radiomics and 3D CNNs

Kushal Mehta, Arshita Jain, Jayalakshmi Mangalagiri et al. · 2020 · arXiv

We present a hybrid algorithm to estimate lung nodule malignancy that combines imaging biomarkers from Radiologist's annotation with image classification of CT scans. Our algorithm employs a 3D Convolutional Neural Network (CNN) as well as a Random Forest in order to combine CT imagery with biomarker annotation and volumetric radiomic features. We analyze and compare the performance of the algorithm using only imagery, only biomarkers, combined imagery + biomarkers, combined imagery + volumetric radiomic features and finally the combination of imagery + biomarkers + volumetric features in orde

Negative / Null Result ReportOpen accessComputer Science

Supersymmetry versus precision experiments revisited

Gi-Chol Cho, Kaoru Hagiwara · 1999 · arXiv

We study constraints on the supersymmetric standard model from the updated electroweak precision measurements --- the Z-pole experiments and the $W$-boson mass measurements. The supersymmetric-particle contributions to the universal gauge-boson-propagator corrections are parametrized by the three oblique parameters Sz, Tz and mw. The oblique corrections, the Zqq and Zll vertex corrections, and the vertex and box corrections to the μ-decay width are separately studied in detail. We first study individual contribution from the four sectors of the model, the squarks, the sleptons, the supersymmet

Negative / Null Result ReportOpen accessComputer Science

Probing neutron skin and symmetry energy with relativistic isobar collisions

Hao-jie Xu · 2023 · arXiv

In these proceedings, we present the three proposed observables to probe the neutron skin and symmetry energy with relativistic isobar collisions, namely, the isobar ratios of the produced hadron multiplicities ($N_{\rm ch}$), the mean transverse momenta ($\langle p_{\perp} \rangle$), and the net charge multiplicities ($ΔQ$). Our findings suggest potentially significant improvement to neutron skin and symmetry energy determination over traditional low energy methods.