e-ISSN: Pending
Failure-mode index

Search what already failed

A searchable index of real negative results, null findings, and replication failures from the published literature — so you can learn what didn't work before repeating it.

WASTE indexes published research — it does not host or republish full papers. Each entry is a metadata record (title, authors, DOI) compiled from open scholarly databases, with the abstract shown in full only where the paper is openly licensed (e.g. Creative Commons); otherwise a short excerpt is shown for reference under fair use. WASTE classifies each work by failure type; classifications are automated and approximate.

21245 results · page 125 of 709

Failed Experiment ReportOpen accessBiochemistry, Genetics and Molecular Biology

Genetic improvement of indigenous Greek sheep and goat breeds

Angeliki Argyriadou, Athanasios Ι. Gelasakis, Georgios Banos et al. · 2020 · Journal of the Hellenic Veterinary Medical Society

The objective of the study was twofold: (i) to review the genetics of production and resilience traits of indigenous Greek small ruminant breeds as well as the evolution of national breeding programs, and (ii) explore innovative and…

View details →DOI: 10.12681/jhvms.22967Cited by 15
Negative / Null Result ReportOpen accessMedicine

Integrating large language model-based agents into a virtual patient chatbot for clinical anamnesis training

Nicolas Laverde, Christian Grévisse, Sandra Ximena Jaramillo-Rincón et al. · 2025 · Computational and Structural Biotechnology Journal

Effective communication is crucial for trust-building, accurate information gathering, and clinical decision-making in healthcare. Despite its emphasis in medical curricula, traditional training methods, such as role-playing with…

View details →DOI: 10.1016/j.csbj.2025.05.025Cited by 15
Negative / Null Result ReportOpen accessMedicine

Re-Sequencing of the <b><i>APOL1</i></b>-<b><i>APOL4</i></b> and <b><i>MYH9</i></b> Gene Regions in African Americans Does Not Identify Additional Risks for CKD Progression

Gregory A. Hawkins, David J. Friedman, Lingyi Lu et al. · 2015 · American Journal of Nephrology

<b><i>Background:</i></b> In African Americans (AAs), <i>APOL1</i> G1 and G2 nephropathy risk variants are associated with non-diabetic end-stage kidney disease (ESKD) in an autosomal recessive pattern.…

View details →DOI: 10.1159/000439448Cited by 15
Negative / Null Result ReportOpen accessMedicine

Serum Uric Acid Level as a Biomarker in Idiopathic and Genetic (p.A53T Alpha-Synuclein Carriers) Parkinson’s Disease: Data from the PPMI Study

Christos Koros, Athina‐Maria Simitsi, Dimitra Papadimitriou et al. · 2020 · Journal of Parkinson s Disease

BACKGROUND: Blood uric acid level represents an emerging biomarker in Parkinson's disease (PD). Whether uric acid levels change in genetic forms of PD is just beginning to be explored. OBJECTIVE: The aim of the present study was to assess differences in serum uric acid level among PD patients harboring the p.A53T mutation in the alpha-synuclein gene, idiopathic PD, and healthy controls. METHODS: Longitudinal 5-year serum uric acid measurement data of 369 de novo idiopathic PD patients and 174 age- and gender-matched healthy controls have been downloaded from the Parkinson's Progression Markers

View details →DOI: 10.3233/jpd-191860Cited by 15
Negative / Null Result ReportOpen accessSocial Sciences

Application of Bloom’s Taxonomy in Categorization of Cognitive Process Development in Colleges

Selina Banda, Florence Phiri, Jack Kaale et al. · 2023

Bloom’s Taxonomy is crucial in any teaching and learning environment because it determines direction for a course of study. This study assessed application of Bloom’s Taxonomy in courses of study offered in colleges in Lusaka District. Objectives were: Assess the application of Bloom’s Taxonomy in setting learning outcomes for the courses; Assess reflection of Bloom’s Taxonomy in activities set for course participants; Ascertain significance attached to Bloom’s Taxonomy in courses of study designed for participants. The study employed a mixed methodology, in particular employing a descriptive

View details →DOI: 10.7176/jep/14-4-02Cited by 15
Negative / Null Result ReportMedicine

Dyslipidemia Is a Major Factor in Stem Cell Damage Induced by Uncontrolled Long-Term Type 2 Diabetes and Obesity in the Rat, as Suggested by the Effects on Stem Cell Culture

Maryam Masouminia, R. Gelfand, Istvan Kovanecz et al. · 2018 · The Journal of Sexual Medicine

BACKGROUND: Previous work showed that muscle-derived stem cells (MDSCs) exposed long-term to the milieu of uncontrolled type 2 diabetes (UC-T2D) in male obese Zucker (OZ) rats, were unable to correct the associated erectile dysfunction and…

View details →DOI: 10.1016/j.jsxm.2018.09.019Cited by 15
Negative / Null Result Report

STABILIZER

Charlie Curtsinger, Emery D. Berger · 2013 · ACM SIGARCH Computer Architecture News

Researchers and software developers require effective performance evaluation. Researchers must evaluate optimizations or measure overhead. Software developers use automatic performance regression tests to discover when changes improve or…

View details →DOI: 10.1145/2490301.2451141Cited by 15
Failed Experiment ReportOpen accessMedicine

Profiling tofersen as a treatment of superoxide dismutase 1 amyotrophic lateral sclerosis

Miguel Oliveira Santos, Mamede de Carvalho · 2024 · Expert Review of Neurotherapeutics

INTRODUCTION: Amyotrophic lateral sclerosis (ALS) is a rapidly progressive motor neuron disorder with a fatal outcome 3-5 years after disease onset due to respiratory complications. Superoxide dismutase 1 (SOD1) mutations are found in…

View details →DOI: 10.1080/14737175.2024.2355983Cited by 15
Negative / Null Result ReportOpen accessBusiness, Management and Accounting

Impact of Acquisitions on the Financial Performance of the Acquiring Companies in Kenya: A Case Study of Listed Acquiring Firms at the Nairobi Securities Exchange

George Gitonga Inoti · 2014 · Journal of Finance and Accounting

This study sought to determine whether acquisitions enhance corporate financial performance. The general objective of the study was to assess the effects of acquisitions on the financial performance of the acquiring companies in Kenya. The…

View details →DOI: 10.11648/j.jfa.20140205.12Cited by 15
Negative / Null Result ReportOpen accessSocial Sciences

Testing the status‐legitimacy hypothesis: Predicting system justification using objective and subjective socioeconomic status in China and the United States

Evan A. Valdes, James H. Liu, Matt N Williams · 2022 · Asian Journal Of Social Psychology

The status‐legitimacy hypothesis proposes that those who are most disadvantaged by unequal social systems are even more likely than members of more advantaged groups to provide ideological support for the very social system that is responsible for their disadvantages. Li, Yang, Wu, and Kou (2020, Personality and Social Psychology Bulletin ) sought to expand the generalizability of this hypothesis by testing it in China, addressing inconsistencies surrounding the empirical support for this hypothesis by postulating that the construct of status should be separated into an objective and subjectiv

View details →DOI: 10.1111/ajsp.12555Cited by 15
Negative / Null Result ReportMedicine

Replication of a predictive model for youth ADHD in an independent sample from a developing country

Cezar H. Lorenzi, Douglas Teixeira Leffa, Rodrigo A. Bressan et al. · 2022 · Journal of Child Psychology and Psychiatry

BACKGROUND: Very few predictive models in Psychiatry had their performance validated in independent external samples. A previously developed multivariable demographic model for attention-deficit/hyperactivity disorder (ADHD) accurately…

View details →DOI: 10.1111/jcpp.13682Cited by 15
Negative / Null Result ReportOpen accessMedicine

Thromboelastography With Platelet Mapping is Not an Effective Measure of Platelet Inhibition in Patients With Spontaneous Intracerebral Hemorrhage on Antiplatelet Therapy

Helena Lam, Nakul Katyal, Catherine D. Parker et al. · 2018 · Cureus

Thromboelastography with platelet mapping (TEG-PM) is a modality to measure platelet function, especially in patients taking antiplatelet medications. It consists of two components: arachidonic acid (AA), which is sensitive to aspirin, and adenosine diphosphate (ADP), which is sensitive to clopidogrel. In patients with spontaneous intracerebral hemorrhages (sICH), the clinical interpretation of platelet mapping is unclear. The objective of this study was to evaluate TEG-PM in patients with sICH on aspirin and/or clopidogrel who receive platelet transfusions. This study was an IRB-approved, ret

View details →DOI: 10.7759/cureus.2515Cited by 15
Negative / Null Result ReportOpen accessMedicine

Correlation of Objective Endpoints and Subjective Patient-Reported Outcomes in NAFLD Treatment with Essential Phospholipids: Real-World Data Based on Pooled Analysis of Observational Studies

В. Т. Ивашкин, М. V. Maevskaya, Е. Н. Широкова et al. · 2021 · Drugs - Real World Outcomes

While no “gold-standard” pharmacotherapy for nonalcoholic fatty liver disease (NAFLD) is yet established, essential phospholipids (EPLs) are reported to decrease steatosis and improve laboratory parameters. This analysis evaluated…

View details →DOI: 10.1007/s40801-021-00250-xCited by 15
Negative / Null Result Report

Video calls did not reduce PTSD symptoms in relatives during restricted ICU visits in the COVID-19 pandemic

Bjoern Zante, Katja Erne, Marie-Madlen Jeitziner · 2022 · Scientific Reports

Abstract To help reduce the spread of the SARS-CoV-2 virus during the COVID-19 pandemic, ICU visits were banned or restricted. Therefore, family-centered care as usually practiced was not feasible Video calls were recommended to meet…

View details →DOI: 10.1038/s41598-022-18616-8Cited by 15
Negative / Null Result ReportOpen accessMedicine

Evaluation of a DNA demethylating agent in combination with all-trans retinoic acid for IDH1-mutant gliomas

Marina da Costa Rosa, Alex Shimura Yamashita, Gregory J. Riggins · 2021 · Neuro-Oncology

BACKGROUND: Isocitrate Dehydrogenase 1/2 (IDH1/2) mutations are diagnostic for Astrocytoma or Oligodendroglioma, IDH-mutant. In these IDH-mutant gliomas, retinoic acid-related gene expression is commonly silenced by DNA hypermethylation.…

View details →DOI: 10.1093/neuonc/noab263Cited by 15
Negative / Null Result ReportOpen accessMedicine

Tumor Status at 12 Weeks Predicts Survival in Advanced Colorectal Cancer: Findings from NCCTG N9741

James M. Heun, Axel Grothey, Megan E. Branda et al. · 2011 · The Oncologist

Abstract Learning Objectives After completing this course, the reader will be able to: Explain the difference in survival prediction between response criteria (WHO) when used as a two-level variable (CR/PR vs. other) and as a three-level…

View details →DOI: 10.1634/theoncologist.2011-0064Cited by 15
Negative / Null Result ReportOpen accessMedicine

An Aetiology-Based Subanalysis of the Telerehabilitation in Heart Failure Patients (TELEREH-HF) Trial

Dominika Szalewska, Renata Główczyńska, Ryszard Piotrowicz et al. · 2021 · ESC Heart Failure

AIMS: The aim of our study was to analyse the benefits of a 9 week hybrid comprehensive telerehabilitation (HCTR) programme in heart failure (HF) patients according to aetiology, as a subanalysis of the Telerehabilitation in Heart Failure…

View details →DOI: 10.1002/ehf2.13189Cited by 15
Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology

In vitro and in vivo activity of cefiderocol against Achromobacter spp. and Burkholderia cepacia complex, including carbapenem-non-susceptible isolates

Miki Takemura, Rio Nakamura, Merime Ota et al. · 2023 · Antimicrobial Agents and Chemotherapy

ABSTRACT Achromobacter spp. and Burkholderia cepacia complex (Bcc) are rare but diverse opportunistic pathogens associated with serious infections, which are often multidrug resistant. This study compared the in vitro antibacterial activity of the siderophore antibiotic cefiderocol against Achromobacter spp. and Bcc isolates with that of other approved antibacterial drugs, including ceftazidime-avibactam, ciprofloxacin, colistin, imipenem-relebactam, and meropenem-vaborbactam. Isolates were collected in the SIDERO multinational surveillance program. Among 334 Achromobacter spp. isolates [76.6%

View details →DOI: 10.1128/aac.00346-23Cited by 15
Failed Experiment ReportOpen accessMedicine

IFN-γ and PPARδ Influence the Efficacy and Retention of Multipotent Adult Progenitor Cells in Graft vs Host Disease

Fiona Carty, Hazel Dunbar, Ian J. Hawthorne et al. · 2021 · Stem Cells Translational Medicine

Cell-based therapy for the treatment of inflammatory disorders has focused on the application of mesenchymal stromal cells (MSCs) and multipotent adult progenitor cells (MAPCs). Despite the recent positive findings in industry-sponsored…

View details →DOI: 10.1002/sctm.21-0008Cited by 15
Negative / Null Result ReportEnvironmental Science

Stream Mesocosm Experiments Show Significant Differences in Sensitivity of Larval and Emerging Adults to Metals

Christopher J. Kotalik, William H. Clements · 2019 · Environmental Science & Technology

Evaluations of aquatic insect responses to contaminants typically use larval life stages to characterize taxa sensitivity, but the effects of contaminants to emerging terrestrial adults have received less attention. We present the results…

View details →DOI: 10.1021/acs.est.9b00883Cited by 15
Negative / Null Result Report

Vitamin E-infused highly cross-linked polyethylene did not reduce the number of in vivo wear particles in total knee arthroplasty

Kumi Orita, Yukihide Minoda, Ryo Sugama et al. · 2020 · The Bone & Joint Journal

Aims Vitamin E-infused highly cross-linked polyethylene (E1) has recently been introduced in total knee arthroplasty (TKA). An in vitro wear simulator study showed that E1 reduced polyethylene wear. However there is no published…

View details →DOI: 10.1302/0301-620x.102b11.bjj-2020-0413.r1Cited by 15
Negative / Null Result ReportOpen accessEarth and Planetary Sciences

Brief Episodes of Nocturnal Hypoxia and Acidification Reduce Survival of Economically Important Blue Crab (Callinectes sapidus) Larvae

Stephen J. Tomasetti, Jeffrey R. Kraemer, Christopher J. Gobler · 2021 · Frontiers in Marine Science

Many shallow coastal systems experience diel fluctuations in dissolved oxygen (DO) and pH that can intensify throughout the summer season and expose estuarine organisms to repeated episodes of coastal hypoxia and acidification. In temperate regions, larval release of the economically important blue crab Callinectes sapidus occurs in the summer, and while the earliest stage (zoea I) larvae are susceptible to persistent low DO and low pH conditions, their sensitivity to diel fluctuations is unknown. Here, a series of short-term (≤96 h) experiments were conducted to investigate the survival of C.

View details →DOI: 10.3389/fmars.2021.720175Cited by 15
Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology

Chronic intermittent hypoxia accelerates cardiac dysfunction and cardiac remodeling during cardiac pressure overload in mice and can be alleviated by PHD3 overexpression

Xuan Xu, Penghao Zhen, Fuchao Yu et al. · 2022 · Frontiers in Cardiovascular Medicine

Obstructive sleep apnea (OSA) accelerates the progression of chronic heart failure (CHF). OSA is characterized by chronic intermittent hypoxia (CIH), and CIH exposure accelerates cardiac systolic dysfunction and cardiac remodeling in a cardiac afterload stress mouse model. Mechanistic experiments showed that long-term CIH exposure activated hypoxia-inducible factor 1α (HIF-1α) expression in the mouse heart and upregulated miR-29c expression and that both HIF-1α and miR-29c simultaneously inhibited sarco-/endoplasmic reticulum calcium ATPase 2a (SERCA2a) expression in the mouse heart. Cardiac H

View details →DOI: 10.3389/fcvm.2022.974345Cited by 15
Negative / Null Result ReportOpen accessMedicine

Gastric electrical stimulation treatment of type 2 diabetes: effects of implantation versus meal-mediated stimulation. A randomized blinded cross-over trial

Harold E. Lebovitz, Bernhard Ludvik, Jarosław Kozakowski et al. · 2015 · Physiological Reports

Gastric electrical stimulation with the implanted DIAMOND device has been shown to improve glycemic control and decrease weight and systolic blood pressure in patients with type 2 diabetes inadequately controlled with oral antidiabetic agents. The objective of this study was to determine if device implantation alone (placebo effect) contributes to the long-term metabolic benefits of DIAMOND(®) meal-mediated gastric electrical stimulation in patients with type 2 diabetes. The study was a 48 week randomized, blinded, cross-over trial in university centers comparing glycemic improvement of DIAMON

View details →DOI: 10.14814/phy2.12456Cited by 15
Negative / Null Result ReportOpen accessMedicine

Lingual Lymph Node Metastases as a Prognostic Factor in Oral Squamous Cell Carcinoma—A Retrospective Multicenter Study

Masahiro Kikuchi, Hiroyuki Harada, Ryo Asato et al. · 2021 · Medicina

Backgrounds and Objectives: The epidemiology and prognostic role of lingual lymph node (LLN) metastasis in patients with oral squamous cell carcinoma (OSCC) remain unclear. Here, we aimed to analyze the clinicopathological features, risk factors, and prognostic role of LLN metastasis in patients with OSCC. Materials and Methods: In total, 945 patients with OSCC were retrospectively analyzed. Clinicopathological features were compared between patients with and without LLN metastasis. The risk factors of LLN metastasis and its effects on survival outcomes were evaluated using multi-variate analy

View details →DOI: 10.3390/medicina57040374Cited by 15
Negative / Null Result ReportOpen accessMedicine

Effect of Reintubation Within 48 Hours on Mortality in Critically Ill Patients After Planned Extubation

Michelli Marcela Dadam, Aline Braz Pereira, Mariane R. Cardoso et al. · 2024 · Respiratory Care

BACKGROUND: Re-intubation is necessary in 2% to 30% of cases of patients receiving a planned extubation. This procedure is associated with prolonged mechanical ventilation, a greater need for tracheostomy, a higher incidence of…

View details →DOI: 10.4187/respcare.11077Cited by 15
Negative / Null Result Report

The advanced machine learner XGBoost did not reduce prehospital trauma mistriage compared with logistic regression: a simulation study

Anna Larsson, Johanna Berg, Mikael Gellerfors et al. · 2021 · BMC Medical Informatics and Decision Making

Abstract Background Accurate prehospital trauma triage is crucial for identifying critically injured patients and determining the level of care. In the prehospital setting, time and data are often scarce, limiting the complexity of triage…

View details →DOI: 10.1186/s12911-021-01558-yCited by 15