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Browse the failure-mode index

21,691 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 accessMedicine

Clinicopathological features and outcome for neuroendocrine neoplasms of gastroesophageal junction: A population‐based study

Panpan Zhang, Wei Wang, Ming Lu et al. · 2018 · Cancer Medicine

BACKGROUND: Gastroesophageal Junction neuroendocrine neoplasms (GEJ-NENs) are rare and heterogeneous tumors. We aim to analyze the clinicopathlogical features and prognostic factors of GEJ-NENs and to compare the outcome of GEJ-NENs with other gastric NENs. METHODS: A total of 297 GEJ-NENs patients were enrolled from 10 Chinese hospitals and 3152 gastric NENs patients, including 274 GEJ-NENs, were retrieved from Surveillance, Epidemiology, and End Results (SEER) database. RESULTS: The clinical characteristics of GEJ-NENs among different races were different. All Chinese patients had GEJ-NENs o

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Negative / Null Result ReportMedicine

Evaluation of Pelvic Circular Compression Devices in Severely Injured Trauma Patients with Pelvic Fractures

Josephine Berger-Groch, Johannes M. Rueger, Patrick Czorlich et al. · 2021 · Prehospital Emergency Care

Background: The role of pelvic circumferential compression devices (PCCD) is to temporarily stabilize the pelvic ring, reduce its volume and to tamponade bleeding. The purpose of this study was to evaluate the effect of PCCDs on mortality…

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Negative / Null Result ReportOpen accessMedicine

Anti-IFNαR Mabs for the treatment of systemic lupus erythematosus

Bethan Goulden, David Isenberg · 2020 · Expert Opinion on Biological Therapy

INTRODUCTION: The type 1 interferon pathway is known to play a role in the immunopathology of systemic lupus erythematosus (SLE). As a result, biologic agents targeting this pathway have been developed and are currently being investigated…

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Negative / Null Result Report

Human-derived Treg and MSC combination therapy may augment immunosuppressive potency in vitro, but did not improve blood brain barrier integrity in an experimental rat traumatic brain injury model

Henry W. Caplan, Karthik S. Prabhakara, Naama E. Toledano Furman et al. · 2021 · PLOS ONE

Traumatic brain injury (TBI) causes both physical disruption of the blood brain barrier (BBB) and altered immune responses that can lead to significant secondary brain injury and chronic inflammation within the central nervous system…

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Negative / Null Result Report

Did a quality improvement intervention improve quality of maternal health care? Implementation evaluation from a cluster-randomized controlled study

Elysia Larson, Godfrey M Mbaruku, Jessica Cohen et al. · 2019 · International Journal for Quality in Health Care

Abstract Objective To test the success of a maternal healthcare quality improvement intervention in actually improving quality. Design Cluster-randomized controlled study with implementation evaluation; we randomized 12 primary care…

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Negative / Null Result ReportOpen accessNeuroscience

A single dorsal vagal complex circuit mediates the aversive and anorectic responses to GLP1R agonists

Warren T. Yacawych, Yi Wang, Guoxiang Zhou et al. · 2026 · Journal of Clinical Investigation

GLP-1 receptor agonists (GLP1RAs) effectively reduce feeding to treat obesity, although nausea and other aversive side effects of these drugs can limit their use. Brainstem circuits that promote satiation and mediate the physiological control of body weight can be distinguished from those that cause aversion. It remains unclear whether brainstem Glp1r neurons contribute to the normal regulation of energy balance and whether GLP1RAs control appetite via circuits distinct from those that mediate aversive responses, however. Here, we silenced Glp1r neurons in the nucleus of the solitary tract or

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Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology

Impact of transfer learning methods and dataset characteristics on generalization in birdsong classification

Burooj Ghani, Vincent J. Kalkman, Bob Planqué et al. · 2025 · Scientific Reports

Animal sounds can be recognised automatically by machine learning, and this has an important role to play in biodiversity monitoring. Yet despite increasingly impressive capabilities, bioacoustic species classifiers still exhibit imbalanced performance across species and habitats, especially in complex soundscapes. In this study, we explore the effectiveness of transfer learning in large-scale bird sound classification across various conditions, including single- and multi-label scenarios, and across different model architectures such as CNNs and Transformers. Our experiments demonstrate that

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Negative / Null Result ReportOpen accessMedicine

The Added Value of Prostate-specific Membrane Antigen Positron Emission Tomography/Computed Tomography to Magnetic Resonance Imaging for Local Staging of Prostate Cancer in Patients Undergoing Radical Prostatectomy

Timo F. W. Soeterik, Joris G. Heetman, Rick Hermsen et al. · 2024 · European Urology Oncology

BACKGROUND AND OBJECTIVE: The role of prostate-specific membrane antigen (PSMA)-based positron emission tomography (PET)/computed tomography (CT) in addition to magnetic resonance imaging (MRI) for local staging of prostate cancer (PC) has been poorly addressed so far. Our aim was to assess the diagnostic accuracy of PSMA PET/CT and MRI, alone and combined, for detection of extraprostatic extension (EPE) and seminal vesicle invasion (SVI) in PC. METHODS: We conducted a multicenter retrospective study evaluating patients undergoing PSMA PET/CT and MRI before radical prostatectomy. The sensitivi

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Negative / Null Result ReportOpen accessArts and Humanities

Model-based feedback in digital writing: effects on young EFL learners’ writing processes and text features

Raquel Criado Sánchez, Aitor Garcés-Manzanera, Rosa M. Manchón · 2026 · Asian-Pacific Journal of Second and Foreign Language Education

Abstract This study examined the effects of model texts on the writing processes and written products of young English as a Foreign Language (EFL) learners in a digital environment. Writing processes were operationalized in terms of noticing and pausing behavior, while text features were evaluated using a five-point holistic rubric. Eighteen fifth-grade Spanish learners participated in a three-stage writing procedure: (i) an initial writing task (tracked with Inputlog); (ii) a noticing stage, where one group compared their texts to a model while a second group engaged in self-editing without m

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Negative / Null Result ReportOpen accessNeuroscience

Resolution limit of the eye — how many pixels can we see?

Maliha Ashraf, Alexandre Chapiro, Rafał Mantiuk · 2025 · Nature Communications

As large engineering efforts go towards improving the resolution of mobile, augmented reality (AR), and virtual reality (VR) displays, it is important to know the maximum resolution at which further improvements bring no noticeable benefit. This limit is often referred to as the retinal resolution, although the limiting factor may not necessarily be attributed to the retina. To determine the ultimate resolution at which an image appears sharp to our eyes with no perceivable blur, we created an experimental setup with a sliding display, which allows for continuous control of the resolution. The

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Negative / Null Result ReportOpen accessMedicine

Anatomic Risk Factors for Initial and Secondary Noncontact Anterior Cruciate Ligament Injury: A Prospective Cohort Study in 880 Female Elite Handball and Soccer Players

Yusuke Kamatsuki, Marie Synnøve Qvale, Kathrin Steffen et al. · 2024 · The American Journal of Sports Medicine

Background: Anterior cruciate ligament (ACL) injury is one of the most severe injuries for athletes. It is important to identify risk factors because a better understanding of injury causation can help inform athletes about risk and increase their understanding of and motivation for injury prevention. Purpose: To investigate the relationship between anatomic factors and risk for future noncontact ACL injuries. Study Design: Cohort study; Level of evidence, 2. Methods: A total of 870, excluding 9 players with a new contact ACL injury and a player with a new noncontact ACL injury just before the

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Negative / Null Result ReportOpen accessMathematics

Faster Hamiltonian Monte Carlo by learning leapfrog scale: an offline randomized solution

Changye Wu, Pierre Pudlo, Christian P. Robert et al. · 2026 · Statistics and Computing

stands for empirical, leverages importance sampling to construct an empirical distribution on discretization parameters, thereby eliminating the need for manual burn-in diagnostics and online adaptation. The proposal distribution used in the calibration stage is obtained via a Population Monte Carlo scheme with tempering and relies on flexible parametric variational families such as normalizing flows. Once the calibration stage complete, the resulting algorithm defines a homogeneous Markov chain via a mixture of HMC kernels with a fixed mixing distribution, and hence preserves the target distr

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Negative / Null Result ReportOpen accessMedicine

Macrophage metabolic reprogramming by vanadium released from glucose-responsive bio-gel accelerates diabetic wound repair

Jiangfeng Li, Zheng Li, 韩丽黎 et al. · 2026 · Signal Transduction and Targeted Therapy

Dysregulated glucose metabolism in diabetic wound macrophages impairs polarization toward the reparative M2 phenotype, leading to compromised innate immunity, chronic inflammation, and delayed wound healing. However, effective strategies…

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Negative / Null Result ReportOpen accessEnvironmental Science

A Breath of Fresh Air: A Novel Passive Airborne eDNA Approach for Scalable Terrestrial Biodiversity Monitoring

Hugo Jager, Krijn Baptist Trimbos, Jan‐Maarten Luursema et al. · 2026 · Ecology and Evolution

Terrestrial biodiversity's rapid decline demands expansion of high-resolution biomonitoring to support science-based policy. Environmental DNA (eDNA) analysis has proven effective in aquatic systems but remains underexplored for terrestrial habitats, partly due to point-source sampling bias and difficulty in upscaling. Air has emerged as a promising substrate, yet most studies use active samplers which tend to be expensive, bulky, and require power, potentially hindering broad deployment. We present a newly developed, inexpensive, reusable, and easy-to-use passive approach (Nutshell eDNA sampl

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Negative / Null Result ReportOpen accessComputer Science

Rapid Integration of LLMs in Healthcare Raises Ethical Concerns: An Investigation into Deceptive Patterns in Social Robots

Robert Ranisch, Joschka Haltaufderheide · 2025 · Digital Society

Abstract Conversational agents are increasingly used in healthcare, with Large Language Models (LLMs) significantly enhancing their capabilities. When integrated into social robots, LLMs offer the potential for more natural interactions. However, while LLMs promise numerous benefits, they also raise critical ethical concerns, particularly regarding hallucinations and deceptive patterns. In this case study, we observed a critical pattern of deceptive behavior in commercially available LLM-based care software integrated into robots. The LLM-equipped robot falsely claimed to have medication remin

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Negative / Null Result ReportOpen accessPhysics and Astronomy

An International Study of Factors Affecting Variability of Dosimetry Calculations, Part 4: Impact of Fitting Functions in Estimated Absorbed Doses

Sara Kurkowska, Julia Brosch-Lenz, Yuni K. Dewaraja et al. · 2025 · Journal of Nuclear Medicine

Individualized radiopharmaceutical therapies guided by patient-specific absorbed dose (AD) assessments using nuclear medicine imaging have the potential to improve both efficacy and safety. Understanding sources of variability in AD calculations is critical for standardization. The Society of Nuclear Medicine and Molecular Imaging Dosimetry Task Force launched the 177Lu Dosimetry Challenge to evaluate variability across steps within the dosimetry workflow. This work aimed to assess the variability in ADs due to different fitting and integration methods. Methods: Anonymized datasets from 2 pati

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Replication FailureOpen accessMedicine

Inhibition of FcRn with rozanolixizumab in adults with immune thrombocytopenia: Two randomised, double‐blind, placebo‐controlled phase 3 studies and their open‐label extension

Nichola Cooper, James B. Bussel, Maciej Kaźmierczak et al. · 2024 · British Journal of Haematology

Summary Primary immune thrombocytopenia (ITP) is an antiplatelet‐antibody‐mediated disorder with accelerated platelet clearance and decreased platelet production. Rozanolixizumab, a monoclonal IgG4 anti‐FcRn antibody, blocks IgG recycling and decreases IgG levels. We report efficacy and safety of rozanolixizumab in adults with persistent/chronic ITP in 24‐week phase 3 studies (TP0003; TP0006), and their 52‐week open‐label extension (OLE). Primary end‐point was durable clinically meaningful platelet response (DCMPR) of ≥50 × 10 9 /L for 8/12 weeks during Weeks 13–25 in the double‐blind studies.

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Negative / Null Result ReportOpen accessMedicine

The role of agentic artificial intelligence in healthcare: a scoping review

Bernardo G. Collaco, Syed Ali Haider, Srinivasagam Prabha et al. · 2026 · npj Digital Medicine

Agentic AI represents a promising evolution of artificial intelligence in healthcare, with systems capable of operating autonomously to achieve defined clinical goals. However, the literature lacks conceptual clarity in distinguishing AI…

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Negative / Null Result ReportOpen accessMaterials Science

Electrospun PLA/PVP K90 Biphasic-Release Sublingual Film for Motion Sickness Treatment

Wenwen Zhang, Qilin Wang, Wei Yi et al. · 2026 · Biomolecules

To overcome the limitations of traditional motion sickness medications—slow onset of action, short duration of efficacy, and poor patient compliance—this study employed coaxial electrospinning technology. Poly(lactic acid) (PLA) and polyvinylpyrrolidone K90 (PVP K90) were used as composite carrier materials. The sheath layer is composed of highly hydrophilic PVP K90, loaded with the antihistamine diphenhydramine (DPH). The core layer, composed of biodegradable PLA with excellent sustained-release properties, carries the anticholinergic drug scopolamine hydrobromide (SH). This core–sheath nanos

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Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology

CRISPR–Cas technologies in neurodegenerative disorders: mechanistic insights, therapeutic potential, and translational challenges

Raya Kh. Yashooa, Ari Q. Nabi, Shukur Wasman Smail et al. · 2026 · Frontiers in Neurology

CRISPR-Cas genome-editing technologies have emerged as powerful tools for precise DNA and RNA modulation, offering promising therapeutic strategies for neurodegenerative disorders such as Alzheimer's disease (AD), Parkinson's disease (PD), Huntington's disease (HD), and amyotrophic lateral sclerosis (ALS). This review critically evaluates current CRISPR/Cas applications in neurodegeneration, with emphasis on mechanistic insights, therapeutic outcomes, and translational feasibility. Preclinical and early translational studies demonstrate that CRISPR-Cas platforms can correct pathogenic mutation

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Negative / Null Result ReportOpen accessPsychology

SΔϕ-60 — Utilitarian Subject-Splitting Index

Sofience · 2026 · Zenodo (CERN European Organization for Nuclear Research)

SΔϕ-60 introduces the Utilitarian Subject-Splitting Index, USSI, within the Sofience-Δϕ Formalism. The paper examines whether utilitarian calculation merely evaluates the happiness of already-existing majorities and minorities, or whether such calculation can first produce the operational boundary between majority and minority by redistributing Transition Completion Cost, TCC. The document begins with the Sofience Subject Thought Experiment. A person is imagined as capable of detaching and reattaching any part of the body while the detached parts remain alive, neurologically connected, and phy

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