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Browse the failure-mode index

21,245 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 accessPsychology

Effectiveness and moderators of individual cognitive behavioral therapy versus treatment as usual in clinically depressed adolescents: a randomized controlled trial

Yvonne Stikkelbroek, Gerko Vink, Maaike H. Nauta et al. · 2020 · Scientific Reports

We examined if manualized cognitive behavioral therapy (CBT) was more effective than Treatment As Usual (TAU) for clinically depressed adolescents within routine care. This multisite Randomized controlled trail included 88 clinically depressed adolescents (aged 12-21 years) randomly assigned to CBT or TAU. Multiple assessments (pre-, post treatment and six-month follow-up) were done using semi-structured interviews, questionnaires and ratings and multiple informants. The primary outcome was depressive or dysthymic disorder based on the KSADS. Completers, CBT (n = 19) and TAU (n = 26), showed a

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Negative / Null Result ReportOpen accessEngineering

Predictors of Hospital Mortality in Patients with Acute Coronary Syndrome Complicated by Cardiogenic Shock

Gábor Szabó, András Ágoston, Gábor Csató et al. · 2021 · Sensors

As demonstrated by earlier studies, pre-hospital triage with trans-telephonic electrocardiogram (TTECG) and direct referral for catheter therapy shows great value in the management of out-of-hospital chest pain emergencies. It does not only improve in-hospital mortality in ST-segment elevation myocardial infarction, but it has also been identified as an independent predictor of higher in-hospital survival rate. Since TTECG-facilitated triage shortens both transport time and percutaneous coronary intervention (PCI)-related procedural time intervals, it was hypothesized that even high-risk patie

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Negative / Null Result ReportOpen accessEnergy

Microalgae-mediated green synthesis of silver nanoparticles: a sustainable approach using extracellular polymeric substances from Graesiella emersonii KNUA204

Jeong‐Mi Do, Ji Won Hong, Ho‐Sung Yoon · 2025 · Frontiers in Microbiology

Traditional nanoparticle synthesis relies on chemical and physical methods that often involve hazardous reagents, high energy consumption, and environmental toxicity. As a sustainable alternative, biological synthesis utilizes biomolecules in an eco-friendly manner to form nanoparticles. This study explores the green synthesis of silver nanoparticles (AgNPs) using extracellular polymeric substances (EPS) secreted by the microalga Graesiella emersonii KNUA204, highlighting the potential of microalgal biomolecules in nanotechnology. EPS-rich supernatant from G. emersonii enabled AgNP formation u

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Negative / Null Result ReportOpen accessMedicine

Emerging biologic frontiers for Sjogren’s syndrome: Unveiling novel approaches with emphasis on extra glandular pathology

Xiao Li, Maierhaba Maitiyaer, Qing Tan et al. · 2024 · Frontiers in Pharmacology

Primary Sjögren's Syndrome (pSS) is a complex autoimmune disorder characterized by exocrine gland dysfunction, leading to dry eyes and mouth. Despite growing interest in biologic therapies for pSS, FDA approval has proven challenging due to trial complications. This review addresses the absence of a molecular-target-based approach to biologic therapy development and highlights novel research on drug targets and clinical trials. A literature search identified potential pSS treatment targets and recent advances in molecular understanding. Overlooking extraglandular symptoms like fatigue and depr

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Negative / Null Result ReportOpen accessMedicine

Opportunistic pathology-based screening for diabetes

Aaron Simpson, Renata Krowka, Jennifer Kerrigan et al. · 2013 · BMJ Open

OBJECTIVE: To determine the potential of opportunistic glycated haemoglobin (HbA1c) testing of pathology samples to detect previously unknown diabetes. DESIGN: Pathology samples from participants collected for other reasons and suitable…

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Negative / Null Result ReportOpen accessMedicine

Deep brain stimulation for psychiatric disorders: role of imaging in identifying/confirming DBS targets, predicting, and optimizing outcome and unravelling mechanisms of action

Dejan Georgiev, Harith Akram, Marjan Jahanshahi · 2021 · Psychoradiology

Following the established application of deep brain stimulation (DBS) in the treatment of movement disorders, new non-neurological indications have emerged, such as for obsessive-compulsive disorders, major depressive disorder, dementia, Gilles de la Tourette Syndrome, anorexia nervosa, and addictions. As DBS is a network modulation surgical treatment, the development of DBS for both neurological and psychiatric disorders has been partly driven by advances in neuroimaging, which has helped explain the brain networks implicated. Advances in magnetic resonance imaging connectivity and electrophy

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Negative / Null Result ReportOpen accessMedicine

Antiviral activity of Chongkukjang extracts against influenza A virus in vitro and in vivo

Bai Wei, Se-Yeoun Cha, Min Kang et al. · 2015 · Journal of Ethnic Foods

Chongkukjang is a traditional Korean fermented product prepared from soybeans and reported to have multiple biological functions, including antidiabetic, antiinflammatory, and neuroprotective effects. Influenza is a respiratory disease caused by influenza viruses and continues to be a worldwide threat with a high potential to cause pandemics. Besides vaccination, only two classes of drugs are available for antiviral treatment against these pathogens. We tested the inhibitory activity of an ethyl acetate extract from Chongkukjang toward influenza A virus neuraminidase. All 10 compounds extracte

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Negative / Null Result ReportOpen accessMedicine

Is There Significant Difference between Digital and Glass Mercury Thermometer?

Hadgu Gerensea, Rajalakshmi Murugan · 2016 · Advances in Nursing

Background . Children’s decisions concerning investigation and treatment may be based on the results of temperature alone. Although the accuracy of axillary temperature measurement is affected by a number of factors, device dwell time and device type are common. Objective . Compare body temperature between glass mercury thermometer (GMT) and digital thermometer (DT). Method . Comparative descriptive study was used. A total of 101 samples were taken with convenient sampling technique, but 98 were analyzed. Statistical significance (p<0.01) and clinical significance (MD≥0.2°C) were used in th

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Failed Experiment ReportOpen accessBiochemistry, Genetics and Molecular Biology

A Francisella tularensis Live Vaccine Strain That Improves Stimulation of Antigen-Presenting Cells Does Not Enhance Vaccine Efficacy

Deanna Schmitt, Dawn M. O’Dee, Joseph Horzempa et al. · 2012 · PLoS ONE

Vaccination is a proven strategy to mitigate morbidity and mortality of infectious diseases. The methodology of identifying and testing new vaccine candidates could be improved with rational design and in vitro testing prior to animal experimentation. The tularemia vaccine, Francisella tularensis live vaccine strain (LVS), does not elicit complete protection against lethal challenge with a virulent type A Francisella strain. One factor that may contribute to this poor performance is limited stimulation of antigen-presenting cells. In this study, we examined whether the interaction of genetical

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Negative / Null Result ReportAgricultural and Biological Sciences

Benefits of larval group feeding by Chrysolina aurichalcea asclepiadis on Vincetoxicum: improved host location or feeding facilitation?

Aaron S. Weed · 2010 · Entomologia Experimentalis et Applicata

Abstract Several studies have shown that group feeding by immature insects enhances larval performance through feeding facilitation. However, the benefits of this behavior have not been studied for species that hatch off from their host…

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Negative / Null Result ReportOpen accessPsychology

A Cognitive Approach to the Instruction of Phrasal Verbs: Rudzka-Ostyn’s Model

Ghuzayyil Mohammed Al-Otaibi · 2019 · Journal of language and Education

English as a Foreign Language (EFL) learners find some phrasal verbs problematic because of their idiomatic and polysemous nature. They are frequently used in spoken English and textbooks suggest an arbitrary way in teaching them. Cognitive linguists proposed that the particle plays a major role in determining the meaning of such phrasal verbs. This study investigated the effectiveness of a cognitive approach (i.e., Rudzka-Ostyn’s Model) in teaching taught and new phrasal verbs including metaphorical ones. Using a list of frequent phrasal verbs, a quasi-experimental design was used in which an

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Negative / Null Result ReportOpen accessMedicine

Aβ plaques do not protect against HSV‐1 infection in a mouse model of familial Alzheimer's disease, and HSV‐1 does not induce Aβ pathology in a model of late onset Alzheimer's disease

Olga V. Bocharova, Aidan Fisher, Narayan Pandit et al. · 2022 · Brain Pathology

The possibility that the etiology of late onset Alzheimer's disease is linked to viral infections of the CNS has been actively debated in recent years. According to the antiviral protection hypothesis, viral pathogens trigger aggregation…

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Negative / Null Result ReportMedicine

Factors and consequences of hypertension

Alberto Zanchetti · 2016 · Journal of Hypertension

The articles published in the current issue of the Journal of Hypertension focus on risk factors for the development of hypertension and on the relationship of hypertension with cardiovascular disease. Two articles illustrate the role of…

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Negative / Null Result ReportOpen accessImmunology and Microbiology

Detection and characterization of diverse coccidian protozoa shed by California sea lions

Yvette A. Girard, Christine K. Johnson, Heather Fritz et al. · 2015 · International Journal for Parasitology Parasites and Wildlife

Tissue-cyst forming coccidia in the family Sarcocystidae are etiologic agents of protozoal encephalitis in marine mammals including the federally listed Southern sea otter (Enhydra lutris). California sea lions (Zalophus californianus),…

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Negative / Null Result ReportOpen accessMedicine

Rescue of Infectious Rotavirus Reassortants by a Reverse Genetics System Is Restricted by the Receptor-Binding Region of VP4

Alexander Falkenhagen, Marno Huyzers, Alberdina A. van Dijk et al. · 2021 · Viruses

The rotavirus species A (RVA) capsid contains the spike protein VP4, which interacts with VP6 and VP7 and is involved in cellular receptor binding. The capsid encloses the genome consisting of eleven dsRNA segments. Reassortment events can result in novel strains with changed properties. Using a plasmid-based reverse genetics system based on simian RVA strain SA11, we previously showed that the rescue of viable reassortants containing a heterologous VP4-encoding genome segment was strain-dependent. In order to unravel the reasons for the reassortment restrictions, we designed here a series of

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Negative / Null Result ReportOpen accessEnvironmental Science

Sub-lethal effects of energy development on a migratory mammal—The enigma of North American pronghorn

Jon P. Beckmann, Sarah H. Olson, Renee G. Seidler et al. · 2016 · Global Ecology and Conservation

To meet societal demands for energy, ∼50,000 gas sites are developed annually in North America, among which many are in western less-developed and wildlife rich areas. To evaluate effects of increasing energy infrastructure requires…

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Abandoned Hypothesis

Statistically responsible artificial intelligences

Nicholas Smith, Darby Vickers · 2021 · Ethics and Information Technology

Abstract As artificial intelligence (AI) becomes ubiquitous, it will be increasingly involved in novel, morally significant situations. Thus, understanding what it means for a machine to be morally responsible is important for machine…

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Negative / Null Result ReportMedicine

SAKK 24/09: Safety and tolerability of bevacizumab plus paclitaxel versus bevacizumab plus metronomic cyclophosphamide and capecitabine as first-line therapy in patients with HER2-negative advanced stage breast cancer—A multicenter, randomized phase III trial.

Christoph Rochlitz, Roger von Moos, Martin Bigler et al. · 2014 · Journal of Clinical Oncology

518 Background: Bevacizumab combined with chemotherapy has been shown to improve response rate and PFS in metastatic breast cancer. The aim of our study was to demonstrate decreased toxicity of metronomic chemotherapy/bevacizumab when…

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Negative / Null Result ReportOpen accessImmunology and Microbiology

Uracil DNA glycosylase interacts with the p32 subunit of the replication protein A complex to modulate HIV-1 reverse transcription for optimal virus dissemination

Cécile Hérate, Clarisse Vigne, Carolin A. Guenzel et al. · 2016 · Retrovirology

BACKGROUND: Through incorporation into virus particles, the HIV-1 Vpr protein participates in the early steps of the virus life cycle by influencing the reverse transcription process. We previously showed that this positive impact on reverse transcription was related to Vpr binding to the uracil DNA glycosylase 2 enzyme (UNG2), leading to enhancement of virus infectivity in established CD4-positive cell lines via a nonenzymatic mechanism. RESULTS: We report here that Vpr can form a trimolecular complex with UNG2 and the p32 subunit (RPA32) of the replication protein A (RPA) complex and we expl

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Negative / Null Result ReportOpen accessNeuroscience

Single nucleotide polymorphism rs6716901 in SLC25A12 gene is associated with Asperger syndrome

Jaroslava Durdiaková, Varun Warrier, Simon Baron‐Cohen et al. · 2014 · Molecular Autism

BACKGROUND: Autism Spectrum Conditions (ASC) are a group of developmental conditions which affect communication, social interactions and behaviour. Mitochondrial oxidative dysfunction has been suggested as a mechanism of autism based on the results of multiple genetic association and expression studies. SLC25A12 is a gene encoding a calcium-binding carrier protein that localizes to the mitochondria and is involved in the exchange of aspartate for glutamate in the inner membrane of the mitochondria regulating the cytosolic redox state. rs2056202 SNP in this gene has previously been associated w

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Negative / Null Result ReportOpen accessPsychology

Characteristics of personally important episodic memories, counterfactual thoughts, and future projections across age and culture

Müge Özbek, Annette Bohn, Dorthe Berntsen · 2020 · Applied Cognitive Psychology

Summary We have limited knowledge as to whether the phenomenological differences between episodic memories, counterfactuals, and future projections show the same pattern across age groups and diverse samples. Here we compared the…

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Negative / Null Result ReportImmunology and Microbiology

Deficiency of ULK1/ATG1 in the follicle cells disturbs ER homeostasis and causes defective chorion deposition in the vector Rhodnius prolixus

Larissa Bomfim, Isabela Ramos · 2020 · The FASEB Journal

In insects, synthesis and deposition of the chorion (eggshell) are performed by the professional secretory follicle cells (FCs) that surround the oocytes in the course of oogenesis. Here, we found that ULK1/ATG1, an autophagy-related…

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