e-ISSN: Pending

Browse the failure-mode index

20,201 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 ReportOpen accessMedicine

Construct Validity of a Serious Game for Laparoscopic Skills Training: Validation Study

Wouter M. IJgosse, Harry van Goor, Camiel Rosman et al. · 2020 · JMIR Serious Games

Background Surgical residents underutilize opportunities for traditional laparoscopic simulation training. Serious gaming may increase residents’ motivation to practice laparoscopic skills. However, little is known about the effectiveness of serious gaming for laparoscopic skills training. Objective The aim of this study was to establish construct validity for the laparoscopic serious game Underground. Methods All study participants completed 2 levels of Underground. Performance for 2 novel variables (time and error) was compared between novices (n=65, prior experience <10 laparoscopic proc

View details →
Negative / Null Result ReportOpen accessEngineering

Multi-band provisioning in dynamic elastic optical networks: a comparative study of a heuristic and a deep reinforcement learning approach

Nour El Din El Sheikh, Esteban Paz, Juan Pinto et al. · 2021

The blocking performance of a heuristic and a deep reinforcement learning approach for resource provisioning in a dynamic multi-band elastic optical network is evaluated. The heuristic is based on a previous proposal that prioritises the…

View details →
Negative / Null Result ReportOpen accessImmunology and Microbiology

Education on tick bite and Lyme borreliosis prevention, aimed at schoolchildren in the Netherlands: comparing the effects of an online educational video game versus a leaflet or no intervention

D. Beaujean, Fedor Gassner, A Wong et al. · 2016 · BMC Public Health

BACKGROUND: Lyme disease or Lyme borreliosis (LB) is the most common tick-borne disease both in the United States and Europe. Children, in particular, are at high risk of contracting LB. Since child-specific educational tools on ticks, tick bites and LB are lacking, we developed an online educational video game. In this study, we compared the effectiveness of an online educational video game versus a newly developed leaflet aimed to improve prevention of tick bites and LB among Dutch schoolchildren. METHODS: A total of 887 children, aged 9-13 years and attending the two final years of primary

View details →
Negative / Null Result ReportPsychology

An Internet-based controlled trial of interpretation bias modification versus progressive muscle relaxation for body dysmorphic disorder.

Natalie L. Wilver, Jesse R. Cougle · 2018 · Journal of Consulting and Clinical Psychology

OBJECTIVE: The current study extended upon previous research efforts by evaluating the utility and feasibility of an 8-session Internet-based interpretation bias modification (IBM) training protocol targeting evaluation- and…

View details →
Negative / Null Result ReportOpen accessMedicine

Design and rationale of randomized evaluation of decreased usage of beta-blockers after acute myocardial infarction (REDUCE-AMI)

Troels Yndigegn, Bertil Lindahl, Joakim Alfredsson et al. · 2022 · European Heart Journal - Cardiovascular Pharmacotherapy

AIMS: Most trials showing benefit of beta-blocker treatment after myocardial infarction (MI) included patients with large MIs and are from an era before modern biomarker-based MI diagnosis and reperfusion treatment. The aim of the…

View details →
Negative / Null Result ReportOpen accessMedicine

Practice variation in anti-epileptic drug use for neonatal hypoxic-ischemic encephalopathy among regional NICUs

Maria L.V. Dizon, Rakesh Rao, Shannon E. G. Hamrick et al. · 2019 · BMC Pediatrics

BACKGROUND: While intercenter variation (ICV) in anti-epileptic drug (AED) use in neonates with seizures has been previously reported, variation in AED practices across regional NICUs has not been specifically and systematically evaluated. This is important as these centers typically have multidisciplinary neonatal neurocritical care teams and protocolized approaches to treating conditions such as hypoxic ischemic encephalopathy (HIE), a population at high risk for neonatal seizures. To identify opportunities for quality improvement (QI), we evaluated ICV in AED utilization for neonates with H

View details →
Negative / Null Result ReportOpen accessMedicine

Impact of baseline and nadir neutrophil index in non-small cell lung cancer and ovarian cancer patients: Assessment of chemotherapy for resolution of unfavourable neutrophilia

Andreas Carus, Howard Gurney, Val Gebski et al. · 2013 · Journal of Translational Medicine

Chronic inflammation has been recognized to foster tumour development. Whether chemotherapy can be used to neutralize chronic inflammation is unclear. We evaluated baseline and nadir neutrophils in 111 patients (pts.) with non-small cell lung cancer (NSCLC) and 118 pts. with ovarian cancer (OC) treated with chemotherapy administered with dose-individualization to achieve nadir neutropenia of 1.5. We used predefined baseline neutrophil cut-offs 4.5 × 109/L (NSCLC) and 3.9 × 109/L (OC). Absence of chemotherapy-induced nadir neutropenia (CTCAE grade 0, neutrophils ≥ LLN) was seen in 23% of OC and

View details →
Negative / Null Result ReportOpen accessSocial Sciences

Explaining significant differences in subjective and objective measures of cardiovascular health: evidence for the socioeconomic gradient in a population-based study

Irene Mosca, Bláithín Ní Bhuachalla, Rose Anne Kenny · 2013 · BMC Cardiovascular Disorders

BACKGROUND: To assess prevalence rates of subjective and objective reports of two cardiovascular disorders (hypertension and hypercholesterolemia) for the same subset of respondents in a large-scale study. To determine whether and the extent to which the socioeconomic health gradient differed in the subjective and objective reports of the two cardiovascular disorders. METHODS: Data from the first wave (2009/2011) of The Irish Longitudinal Study on Ageing were used (n = 4,179). This is a nationally representative study of community-dwelling adults aged 50+ residing in Ireland. Subjective measur

View details →
Negative / Null Result ReportOpen accessMedicine

Does a Nebulized Heparin/N-acetylcysteine Protocol Improve Outcomes in Adult Smoke Inhalation?

Natalie Kashefi, Jonathan I. Nathan, Sharmila Dissanaike · 2014 · Plastic & Reconstructive Surgery Global Open

BACKGROUND: Smoke inhalation is a major source of morbidity and mortality. Heparin and N-acetylcysteine treatment has potential efficacy in inhalation injury. We investigated the impact of a heparin/N-acetylcysteine/albuterol nebulization…

View details →
Negative / Null Result ReportOpen accessMedicine

Association between adjuvant chemotherapy and survival in patients with rectal cancer and pathological complete response after neoadjuvant chemoradiotherapy and resection

Fang He, Huai‐Qiang Ju, Yi Ding et al. · 2020 · British Journal of Cancer

BACKGROUND: For patients with locally advanced rectal cancer (LARC), it is unclear whether neoadjuvant chemoradiotherapy-induced pathologic complete response (pCR) individuals would further benefit from adjuvant chemotherapy (ACT). METHODS: The pCR individuals who received different ACT cycles were paired by propensity score matching. Overall survival (OS), disease-free survival (DFS), local recurrence-free survival (LRFS), and distant metastasis-free survival (DMFS) were calculated by Kaplan-Meier and log-rank test. RESULTS: In total, 1041 pCR individuals were identified from 5567 LARC cases.

View details →
Negative / Null Result ReportOpen accessMedicine

RETRACTED ARTICLE: Pharmacokinetics, Biodistribution, and Anti-Angiogenesis Efficacy of Diamino Propane Tetraiodothyroacetic Acid-conjugated Biodegradable Polymeric Nanoparticle

Weikun Li, Murat Yalçın, Dhruba J. Bharali et al. · 2019 · Scientific Reports

Abstract The anti-angiogenic agent, diamino propane tetraiodothyroacetic acid (DAT), is a thyro-integrin (integrin αvβ3) antagonist anticancer agent that works via genetic and nongenetic actions. Tetraiodothyroacetic acid (tetrac) and DAT as thyroid hormone derivatives influence gene expression after they transport across cellular membranes. To restrict the action of DAT to the integrin αvβ3 receptors on the cell surface, we used DAT-conjugated PLGA nanoparticles (NDAT) in an active targeting mode to bind to these receptors. Preparation and characterization of NDAT is described, and both in vi

View details →
Negative / Null Result ReportOpen accessMedicine

The use of high-flow nasal oxygen vs. standard oxygen therapy in hematological malignancy patients with acute respiratory failure in hematology wards

Nilgün Mendil, Şahin Temel, Recep Civan Yüksel et al. · 2021 · TURKISH JOURNAL OF MEDICAL SCIENCES

Background/aim: High flow nasal cannula (HFNC) was mostly used in intensive care units (ICUs) with few studies in other departments. We hypothesized that HFNC applied at wards is beneficial for acute respiratory failure in hematological malignancy patients. Materials and methods: The study is a single center, randomized controlled study. Inclusion criteria were hypoxemic respiratory failure and hematological malignancy. Patients were randomized to either venturi mask/nasal cannula oxygen treatment or HFNC. Results: One hundred patients were included in the study. Median age was 58.5 (18–86) ye

View details →
Negative / Null Result Report

Spinal Muscular Atrophy after Nusinersen Therapy: Improved Physiology in Pediatric Patients with No Significant Change in Urine, Serum, and Liquor 1H-NMR Metabolomes in Comparison to an Age-Matched, Healthy Cohort

Leon Deutsch, Damjan Osredkar, Janez Plavec et al. · 2021 · Metabolites

Spinal muscular atrophy (SMA) is a genetically heterogeneous group of rare neuromuscular diseases and was until recently the most common genetic cause of death in children. The effects of 2-month nusinersen therapy on urine, serum, and…

View details →
Negative / Null Result Report

Climate change threatens archaeologically significant ice patches: insights into their age, internal structure, mass balance and climate sensitivity

Rune Strand Ødegård, Atle Nesje, Ketil Isaksen et al. · 2017 · The Cryosphere

Abstract. Despite numerous spectacular archaeological discoveries worldwide related to melting ice patches and the emerging field of glacial archaeology, governing processes related to ice patch development during the Holocene and their…

View details →
Negative / Null Result ReportOpen accessSocial Sciences

I know that I know nothing: Can puncturing the illusion of explanatory depth overcome the relationship between attitudinal dissimilarity and prejudice?

Jan G. Voelkel, Mark J. Brandt, Matteo Colombo · 2018 · Comprehensive Results in Social Psychology

People are prejudiced toward groups they perceive as having a worldview dissimilar from their own. This link between perceived attitudinal dissimilarity and prejudice is so stable that it has been described as a psychological law. The current research tests whether reducing people’s (over-)confidence in their own understanding of policies by puncturing their illusion of explanatory depth in the political domain will reduce the link between perceived attitudinal dissimilarity and prejudice. In an initial pre-registered experiment (N = 296), we did not find support for our hypothesis, but explor

View details →
Negative / Null Result ReportOpen accessMedicine

Peptide‐Drug Conjugates: A New Hope for Cancer

Amy Armstrong, Fleur Coburn, Yanyamba Nsereko et al. · 2025 · Journal of Peptide Science

Peptide-drug conjugates (PDCs) are advancing as targeted cancer therapies, leveraging lessons from antibody-drug conjugates (ADCs) to improve tumour specificity. These molecules combine a homing peptide with a cytotoxic payload via a linker, enabling precise drug delivery while sparing healthy tissue. Despite their potential, PDCs face challenges including metabolic instability, premature payload release and rapid clearance, limiting clinical success. Only Lutathera remains FDA-approved after Pepaxto's withdrawal, though Pepaxto retains EMA and MHRA approval-highlighting regulatory and technic

View details →
Negative / Null Result ReportOpen accessPsychology

Test-retest reliability of a smartphone-based approach-avoidance task: Effects of retest period, stimulus type, and demographics

Hilmar Zech, Philip A. Gable, W. van Dijk et al. · 2022 · Behavior Research Methods

The approach-avoidance task (AAT) is an implicit task that measures people's behavioral tendencies to approach or avoid stimuli in the environment. In recent years, it has been used successfully to help explain a variety of health problems (e.g., addictions and phobias). Unfortunately, more recent AAT studies have failed to replicate earlier promising findings. One explanation for these replication failures could be that the AAT does not reliably measure approach-avoidance tendencies. Here, we first review existing literature on the reliability of various versions of the AAT. Next, we examine

View details →
Negative / Null Result ReportOpen accessMedicine

Preoperative statins are associated with a reduced risk of postoperative delirium following vascular surgery

Dae-Sang Lee, Mi Yeon Lee, Chi-Min Park et al. · 2018 · PLoS ONE

Delirium is a common complication of vascular surgery. The protective effect of preoperative statins on delirium after vascular surgery is controversial. The authors hypothesized that preoperative statin administration would decrease the incidence of delirium after vascular surgery. From May 2010 to May 2015, 1,132 patients underwent vascular surgery. Postoperative delirium was diagnosed from patients' medical records. The incidence of delirium was 11.5%. The preoperative statin exposure was not associated with reduced delirium in the univariate analysis. After adjusting for covariates, preope

View details →
Negative / Null Result Report

One chiral fingerprint to find them all

Markus Orsi, Jean-Louis Reymond · 2024 · Journal of Cheminformatics

Abstract Molecular fingerprints are indispensable tools in cheminformatics. However, stereochemistry is generally not considered, which is problematic for large molecules which are almost all chiral. Herein we report MAP4C, a chiral…

View details →
Negative / Null Result Report

Do compassionate firms outperform? The role of organizational learning

Jacob Guinot, Sandra Miralles, Alma Rodríguez-Sánchez et al. · 2020 · Employee Relations: The International Journal

Purpose Based on a new management paradigm rooted on care and compassion, this study explores the consequences of compassion at work on organizational learning and firm performance. Design/methodology/approach Structural equation modeling…

View details →
Negative / Null Result Report

Invasive crayfish outperform Potamonautid crabs at higher temperatures

Takudzwa C. Madzivanzira, Josie South, Olaf L. F. Weyl · 2021 · Freshwater Biology

Abstract Data on ecological impacts of freshwater crayfish invasions in Africa are scarce but invasion history suggests the likelihood of negative implications for biodiversity. To evaluate the potential for ecological impacts we describe…

View details →