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WASTE Journal

Browse the failure-mode index

21,252 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 accessComputer Science

Fully-Dynamic All-Pairs Shortest Paths: Likely Optimal Worst-Case Update Time

Xiao Mao · 2023 · arXiv

The All-Pairs Shortest Paths (APSP) problem is one of the fundamental problems in theoretical computer science. It asks to compute the distance matrix of a given $n$-vertex graph. We revisit the classical problem of maintaining the distance matrix under a fully dynamic setting undergoing vertex insertions and deletions with a fast worst-case running time and efficient space usage. Although an algorithm with amortized update-time $\tilde O(n ^ 2)$ has been known for nearly two decades [Demetrescu and Italiano, STOC 2003], the current best algorithm for worst-case running time with efficient spa

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Negative / Null Result ReportOpen accessComputer Science

Understanding and Analyzing Model Robustness and Knowledge-Transfer in Multilingual Neural Machine Translation using TX-Ray

Vageesh Saxena, Sharid Loáiciga, Nils Rethmeier · 2024 · arXiv

Neural networks have demonstrated significant advancements in Neural Machine Translation (NMT) compared to conventional phrase-based approaches. However, Multilingual Neural Machine Translation (MNMT) in extremely low-resource settings remains underexplored. This research investigates how knowledge transfer across languages can enhance MNMT in such scenarios. Using the Tatoeba translation challenge dataset from Helsinki NLP, we perform English-German, English-French, and English-Spanish translations, leveraging minimal parallel data to establish cross-lingual mappings. Unlike conventional meth

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Negative / Null Result ReportOpen accessEngineering

Learning-based Axial Video Motion Magnification

Kwon Byung-Ki, Oh Hyun-Bin, Kim Jun-Seong et al. · 2023 · arXiv

Video motion magnification amplifies invisible small motions to be perceptible, which provides humans with a spatially dense and holistic understanding of small motions in the scene of interest. This is based on the premise that magnifying small motions enhances the legibility of motions. In the real world, however, vibrating objects often possess convoluted systems that have complex natural frequencies, modes, and directions. Existing motion magnification often fails to improve legibility since the intricate motions still retain complex characteristics even after being magnified, which may di

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Negative / Null Result ReportMedicine

vNOTES Pelvic Reconstruction and Presacral-Uterosacral Ligament Compound Suspension for Treatment of Multicompartment Pelvic Organ Prolapse: A Three-Year, Three-Arm, Open-Label, Randomized Controlled Trial.

Peng, Wang, Xiao et al. · 2026 · Journal of minimally invasive gynecology

To compare the effectiveness and safety of transvaginal natural orifice transluminal endoscopic surgery (vNOTES) pelvic reconstruction (PRC), vNOTES presacral-uterosacral ligament suspension (PULS), and sacrospinous ligament fixation…

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Negative / Null Result ReportOpen accessComputer Science

The added value for MRI radiomics and deep-learning for glioblastoma prognostication compared to clinical and molecular information

D. Abler, O. Pusterla, A. Joye-Kühnis et al. · 2025 · arXiv

Background: Radiomics shows promise in characterizing glioblastoma, but its added value over clinical and molecular predictors has yet to be proven. This study assessed the added value of conventional radiomics (CR) and deep learning (DL) MRI radiomics for glioblastoma prognosis ( 6 months survival) on a large multi-center dataset. Methods: After patient selection, our curated dataset gathers 1152 glioblastoma (WHO 2016) patients from five Swiss centers and one public source. It included clinical (age, gender), molecular (MGMT, IDH), and baseline MRI data (T1, T1 contrast, FLAIR, T2)

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Negative / Null Result Report

A Case Report of Korean Medicine Treatment, including Jakyakgamcho-tang, in a Patient with Unilateral Vocal Cord Paralysis That Did Not Improve After Injection Laryngoplasty

Ye-seul Park, Ja-eun Kwak, Ho-ryong Yoo et al. · 2024 · The Journal of Internal Korean Medicine

Background: Unilateral vocal cord paralysis can occur due to various causes. Among them, unilateral vocal cord paralysis that takes place after endotracheal intubation is often caused by damage to the left recurrent nerve branch during…

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Negative / Null Result Report

Do Polluters Outperform Non-Polluters?

Yigit Atilgan, K. Ozgur Demirtas, A. Doruk Gunaydin · 2024 · SSRN Electronic Journal

This paper investigates whether industrial companies with higher toxic emissions outperform those with lower toxic emissions. First, the highest polluters do not consistently outperform the lowest polluters in an almost stochastic…

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Negative / Null Result ReportOpen accessPhysics

How to generate a significant effective temperature for cold dark matter, from first principles

Patrick McDonald · 2009 · arXiv

I show how to reintroduce velocity dispersion into perturbation theory (PT) calculations of structure in the Universe, i.e., how to go beyond the pressureless fluid approximation, starting from first principles. This addresses a possible deficiency in uses of PT to compute clustering on the weakly non-linear scales that will be critical for probing dark energy. Specifically, I show how to derive a non-negligible value for the (initially tiny) velocity dispersion of dark matter particles, , where δv is the deviation of particle velocities from the local bulk flow. The calculation is essen

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Negative / Null Result ReportMedicine

Material fracture/retention rates of occluso-proximal composite resin restorations with polyethylene fibers in primary molars: an interim randomized controlled trial.

Rocha, Dos Anjos, Pinho et al. · 2026 · Journal of dentistry

This 12-month, double-blind, parallel, randomized controlled trial compared the material fracture/retention rates of occluso-proximal direct composite resin restorations associated with polyethylene fiber (CR+PF; Ribbond®) with…

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Negative / Null Result ReportMedicine

Generative Artificial Intelligence for Orthognathic Planning: Patient-Specific 3-Dimensional Jaw Reference Forms Conditioned on the Cranial Base.

Kim, Yang, Kuang et al. · 2026 · Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons

Conventional cephalometry relies on measurements derived from a limited set of landmarks and population-based norms, which may not fully capture individual skeletal form. Although evaluated independently, many cephalometric variables…

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Negative / Null Result ReportMedicine

Using a hand-held pupillometer to quantify pupil constriction as part of the accommodation reflex.

Olson, Perera, Kamal et al. · 2026 · Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia

Quantitative pupillometry (QP) provides a reliable measure of the pupillary light reflex. The pupil accommodation reflex (P-AR) occurs when there is a change in visual focus from near to far or from far to near. The ability to measure the…

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Negative / Null Result ReportMedicine

Clinical outcomes of endovascular treatment in patients with large ischemic strokes selected by non-contrast computed tomography within the extended time window.

Jiang, Zhu, Gan et al. · 2026 · European journal of radiology

This study aimed to investigate the effectiveness and safety of endovascular treatment (EVT) in patients with large ischemic strokes assessed by non-contrast CT (NCCT) within the extended time window. This study was a sub-analysis of a…

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Negative / Null Result ReportMedicine

Effect of a Multidimensional Digital Health Intervention on Quality of Life in Breast Cancer Survivors: A Randomized Controlled Trial.

Fuentes-Expósito, Frid, Muñoz-Mateu et al. · 2026 · JCO clinical cancer informatics

We evaluated whether offering access to a multicomponent mHealth app improves quality of life (QoL) and psychosocial outcomes among breast cancer survivors under pragmatic, nonprescriptive conditions. In this single-center, randomized,…

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Negative / Null Result ReportMedicine

7-mm-Diamater Versus 5-mm-Diameter Immediate Post-Extraction Implants in the Molar Region: 1-Year Results from a Multicenter Randomized Controlled Trial.

Esposito, Bocari, Cho et al. · 2026 · The International journal of oral & maxillofacial implants

This multicenter randomized controlled trial compared the clinical effectiveness of 7.0-mm wide-diameter implants with 5.0-mm conventional-diameter implants placed immediately after molar extraction. Thirty-nine patients needing a single…

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Negative / Null Result ReportMedicine

Effects of fermented Arundo donax juice on growth performance, immunocompetence, antioxidant capacity, and intestinal digestive enzyme activity in Arbor Acres broilers.

Li, Ma, Liu et al. · 2026 · Tropical animal health and production

In this study, we used lactic acid bacteria to ferment the byproduct of Arundo donax papermaking, Arundo donax juice (ADJ), to obtain fermented Arundo donax juice (FADJ). We aimed to investigate the effects of FADJ on the growth…

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Negative / Null Result ReportMedicine

Beyond peak wavelength: spectral bandwidth of blue and red-blue laser diodes modulates photosynthesis, canopy architecture, chlorophyll maintenance, and whole-plant growth.

Li, Sugita, Togawa et al. · 2026 · Frontiers in plant science

High planting densities in indoor horticulture often accelerate lower-leaf chlorophyll degradation, increasing trimming frequency, reducing effective photosynthetic area, and raising labor costs. While spectral composition has been widely…

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Negative / Null Result ReportMedicine

Deep and repetitive transcranial magnetic stimulation improves motor dysfunction after basal ganglia infarction: preliminary findings on efficacy and electrophysiological mechanisms.

Yang, Zhu, Chen et al. · 2026 · Frontiers in neuroscience

To observe the therapeutic effects of deep transcranial magnetic stimulation (dTMS) and repetitive transcranial magnetic stimulation (rTMS) on upper and lower limb motor dysfunction in patients with basal ganglia infarction, and to…

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