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19,820 real negative results, null findings, and replication failures · Negative / Null Result Report. 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 Report

School leadership and organizational change: does teacher innovative behaviour play a significant role?

Grace Damptey Manu, Michael Osei Aboagye, Seth Yeboah Ntim et al. · 2025 · International Journal of Educational Management

Purpose The implementation of school improvement initiatives – such as Ghana’s standards-based curriculum (SBC) – necessitates transformational and contextually responsive school leadership. In line with this, the recent primary school…

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Negative / Null Result Report

Persistent Nanophosphors: Poised to Outperform Bulk Counterparts?

Victor Castaing, Simon Delacroix, Thierry Gacoin et al. · 2026 · Advanced Optical Materials

Abstract The design of advanced materials often reveals how apparent imperfections, such as structural defects or impurities, can be transformed into functional advantages. In insulating oxide matrices, the controlled introduction of…

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Negative / Null Result Report

Humans Outperform Machines at the Bilingual Shannon Game

Marjan Ghazvininejad, Kevin Knight · 2016 · Entropy

We provide an upper bound for the amount of information a human translator adds to an original text, i.e., how many bits of information we need to store a translation, given the original. We do this by creating a Bilingual Shannon Game…

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Negative / Null Result Report

A novel approach to off-clamp partial nephrectomy demonstrates significant improvements in renal injury in an experimental porcine model

Daniel Olvera-Posada, Shouzhe Lin, Ghaleb Aboalsamh et al. · 2017 · Canadian Urological Association Journal

Introduction: We sought to design a partial nephrectomy (PN) with contralateral total nephrectomy porcine model and assess the underlying mechanisms of ischemia reperfusion injury (IRI) after PN using a novel, clinically approved resection…

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Negative / Null Result Report

Why did Endurance sink?

Jukka Tuhkuri · 2025 · Polar Record

Abstract Sir Ernest Shackleton’s ship, Endurance , was crushed by Antarctic sea ice and sank in November 1915. Since then, it has been widely considered that Endurance was the strongest polar ship of its time and was lost because ice tore…

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Negative / Null Result Report

Burden of Significant Anxiety and Stress Symptoms in Persons with Visual Impairment in a Nigerian Hospital

Suhanyah Okeke, Justus Uchenna Onu, Ifeoma Nwabuogo Asimadu et al. · 2023 · Journal of the Nigerian Academy of Medicine

Background: Visual impairment (VI) presents a unique situation for adaptation with diverse socio-cultural and psychological consequences. However, the treatment of patients with visual impairment (PVI) in Nigeria is yet to embrace the…

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Negative / Null Result Report

Whom did the karasuk people resemble?

A. G Kozintsev · 2023 · Etnograficheskoe obozrenie

To test Yuri Rychkov’s claim that the physical type of the Karasuk people was identical to that of the highlanders of Western Pamir, 24 male Karasuk cranial samples were subjected to a multivariate comparison with 59 samples representing…

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Negative / Null Result Report

On the most significant change of teachers’ evaluation: A descriptive-narrative research

Carina Seron, Betarmos Jr. Vicente, Melbert Hungo et al. · 2024 · Journal of Research, Policy & Practice of Teachers & Teacher Education

This study aimed to explore transformative shifts resulting from teacher evaluations. Employing a descriptive-narrative research design, sixteen teachers in Bontoc I and II districts, Southern Leyte, Philippines were purposively sampled…

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Negative / Null Result Report

Study: The Lack of Significant Association of the Catechol‐ O ‐Methyl Transferase (COMT) Gene Polymorphism in Violent Offenders with Mental Retardation

Aysun Baransel Isir, Alper Ibrahim Dai, Muradiye Nacak et al. · 2010 · Journal of Forensic Sciences

Abstract: Little is known about criminality of cognitively impaired people and also there have been no reports on the relationship between catechol‐ O ‐methyl transferase (COMT) and committed Mental Retardation (MR) subjects. In the…

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Negative / Null Result Report

Type III collagen formation is significantly associated with risk of outcome in HFpEF patients but loses its significant association with underlying AF

E Angeli, A Reese-Petersen, A Gonzalez et al. · 2022 · European Heart Journal

Abstract Introduction Heart failure with preserved ejection fraction (HFpEF) is the most common type of heart failure, associated with high morbidity and mortality. Atrial fibrillation (AF) has been associated with structural remodelling…

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Negative / Null Result Report

Did Aristotle have a Doctrine of Existential Import?

Byeong-uk Yi · 2025 · Open Philosophy

Abstract Modern logicians hold that traditional logic makes a serious error by accepting the subalternation thesis , the thesis that universal affirmatives imply matching particular affirmatives. But some traditional logicians (e.g.,…

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Negative / Null Result Report

Detection of clinically significant prostate cancer by micro-ultrasound-informed systematic biopsy during MRI/micro-ultrasound fusion biopsy

Betty Wang, Stacey Broomfield, Anaïs Medina Martín et al. · 2022 · Canadian Urological Association Journal

Introduction: High-resolution micro-ultrasound (microUS) is a novel imaging technique that may visualize clinically significant prostate cancer (csPCa), including those missed by magnetic resonance imaging (MRI), in real-time during…

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Negative / Null Result Report

Vascular Stiffness, Instead of Coronary Artery Calcification, Exhibits Significant Association With Hypertension Risk in General Population

Chia-Ter Chao, Min-Tser Liao, Chung-Kuan Wu · 2025 · American Journal of Hypertension

Abstract BACKGROUND Hypertension (HTN) significantly increases cardiovascular risk worldwide, and its incidence is expected to rise further over time. Both coronary artery calcification (CAC) and vascular stiffness (VS) potentially…

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Negative / Null Result Report

Assessing the Performance of 8 AI Chatbots in Bibliographic Reference Retrieval: Grok and DeepSeek Outperform ChatGPT, but None are Entirely Accurate

Álvaro Cabezas-Clavijo, Pavel Sidorenko-Bautista · 2026 · Journal of Data and Information Science

Abstract Purpose This study evaluates the reliability of eight generative artificial intelligence chatbots—including ChatGPT, Claude, Gemini, and DeepSeek—when functioning as autonomous agents for academic bibliographic generation,…

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Negative / Null Result Report

Outcome of Second Line Treatment in Patients with Chronic Lymphocytic Leukemia Did Not Improve 2002-2013: A Population-Based Study from a Well-Defined Geographic Region

Anna Asklid, Agnes Mattsson, Einar Björgvinsson et al. · 2015 · Blood

Abstract Background: Treatment of relapsed or refractory (R/R) chronic lymphocytic leukemia (CLL) remains challenging. Major progress has been achieved with new agents such as ibrutinib and idelalisib. However relapses still occur with…

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