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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.

1894 results for "Mpro" · page 6 of 64

Negative / Null Result ReportSocial Sciences

Improving Students' PISA Scientific Competencies Through Online Argumentation

Chun‐Yen Tsai · 2014 · International Journal of Science Education

The scientific competencies advocated by the Programme for International Student Assessment (PISA) focus on the abilities needed in students' adult lives. This study investigated how such scientific competencies could be improved by using…

View details →DOI: 10.1080/09500693.2014.987712Cited by 54
Negative / Null Result ReportOpen accessMedicine

Time to Reperfusion in ST-Segment Elevation Myocardial Infarction Patients With vs. Without Pre-Hospital Mobile Telemedicine 12-Lead Electrocardiogram Transmission

Shoji Kawakami, Yoshio Tahara, Teruo Noguchi et al. · 2016 · Circulation Journal

BACKGROUND: Prehospital ECG improves survival following ST-segment elevation myocardial infarction (STEMI). Although a new International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment…

View details →DOI: 10.1253/circj.cj-15-1322Cited by 54
Negative / Null Result ReportOpen accessMedicine

Significant Association Between Low Baseline Neutrophil-to-Lymphocyte Ratio and Improved Progression-free Survival of Patients With Locally Advanced or Metastatic Breast Cancer Treated With Eribulin But Not With Nab-Paclitaxel

Yoshimasa Miyagawa, Kazuhiro Araki, Ayako Bun et al. · 2018 · Clinical Breast Cancer

INTRODUCTION: Although eribulin and nab-paclitaxel are chemotherapy agents widely used for locally advanced or metastatic breast cancer (MBC), their predictive factors remain unknown. Because the absolute neutrophil-to-lymphocyte ratio…

View details →DOI: 10.1016/j.clbc.2018.03.002Cited by 54
Negative / Null Result ReportOpen accessMedicine

Comparison of serum and urinary biomarker panels with albumin/creatinine ratio in the prediction of renal function decline in type 1 diabetes

Marco Colombo, Stuart J. McGurnaghan, Luke A. K. Blackbourn et al. · 2020 · Diabetologia

Abstract Aims/hypothesis We examined whether candidate biomarkers in serum or urine can improve the prediction of renal disease progression in type 1 diabetes beyond prior eGFR, comparing their performance with urinary albumin/creatinine ratio (ACR). Methods From the population-representative Scottish Diabetes Research Network Type 1 Bioresource (SDRNT1BIO) we sampled 50% and 25% of those with starting eGFR below and above 75 ml min −1 [1.73 m] −2 , respectively ( N = 1629), and with median 5.1 years of follow-up. Multiplexed ELISAs and single molecule array technology were used to measure nin

View details →DOI: 10.1007/s00125-019-05081-8Cited by 53
Negative / Null Result Report

Did Access to Care Improve Since Passage of the Veterans Choice Act?

Deborah Gurewich, Michael Shwartz, Erin Beilstein-Wedel et al. · 2021 · Medical Care

Background: The 2014 Veterans Choice Program aimed to improve care access for Veterans through expanded availability of community care (CC). Increased access to CC could particularly benefit rural Veterans, who often face obstacles in…

View details →DOI: 10.1097/mlr.0000000000001490Cited by 52
Negative / Null Result ReportOpen accessPsychology

Podcast-based pronunciation training: Enhancing FL learners’ perception and production of fossilised segmental features

Jonás Fouz-González · 2018 · ReCALL

Abstract This study investigates the potential of a podcast-based approach aimed at helping foreign language learners improve their pronunciation of features that tend to be fossilised in their interlanguage. Training took place over a…

View details →DOI: 10.1017/s0958344018000174Cited by 51
Negative / Null Result ReportOpen accessMedicine

Is Doppler ultrasound of additional value to gray-scale ultrasound in differentiating malignant and benign thyroid nodules?

Pedro Weslley Rosário, Alexandre Lemos Silva, Michelle Aparecida Ribeiro Borges et al. · 2015 · Archives of Endocrinology and Metabolism

The objective of this study was to evaluate whether Doppler ultrasound (DUS) is of additional value to gray-scale ultrasound (GSUS) in predicting the benign or malignant nature of thyroid nodules. A total of 1,502 solid thyroid nodules ≥ 10 mm were evaluated. Suspicious vascularity (predominantly or exclusively central blood flow) was observed in only 5% of the nodules. This finding showed 96% specificity, but only 15% sensitivity. GSUS alone showed sensitivity and specificity of 88.7% and 68.2%, respectively, which did not improve with the addition of DUS (sensitivity of 89.4% and specificity

View details →DOI: 10.1590/2359-3997000000014Cited by 51
Negative / Null Result ReportOpen accessDecision Sciences

A Model for Improving E-Tax Systems Adoption in Rural Zambia Based on the TAM Model

Patience Njina Soneka, Jackson Phiri · 2019 · Open Journal of Business and Management

The objective of this study was to assess the factors that influence the level of e-tax systems adoption in Zambia. The study focused on TaxOnline system used by domestic taxes division in Zambia. The study was conducted in rural Zambia. In this study, the researcher used Technology Acceptance Model (TAM). The sample size was purposively selected from various taxpayers who were coming through to Zambia Revenue Authority Solwezi internet bureau. 100 semi structured survey questionnaires were distributed with 100% response. The data collected was analyzed using descriptive statistics. The result

View details →DOI: 10.4236/ojbm.2019.72062Cited by 51
Negative / Null Result ReportOpen accessPsychology

A test of the micro‐expressions training tool: Does it improve lie detection?

Sarah Jordan, Laure Brimbal, David B. Wallace et al. · 2019 · Journal of Investigative Psychology and Offender Profiling

Abstract The purpose of the study was to examine the effectiveness of the micro‐expressions training tool (METT) in identifying and using micro‐expressions to improve lie detection. Participants ( n = 90) were randomly assigned to receive…

View details →DOI: 10.1002/jip.1532Cited by 50
Negative / Null Result ReportOpen accessMedicine

Development to Term of Cloned Cattle Derived from Donor Cells Treated with Valproic Acid

Juliano Rodrigues Sangalli, Marcos Roberto Chiaratti, Tiago Henrique Camara De et al. · 2014 · PLoS ONE

Cloning of mammals by somatic cell nuclear transfer (SCNT) is still plagued by low efficiency. The epigenetic modifications established during cellular differentiation are a major factor determining this low efficiency as they act as epigenetic barriers restricting reprogramming of somatic nuclei. In this regard, most factors that promote chromatin decondensation, including histone deacetylase inhibitors (HDACis), have been found to increase nuclear reprogramming efficiency, making their use common to improve SCNT rates. Herein we used valproic acid (VPA) in SCNT to test whether the treatment

View details →DOI: 10.1371/journal.pone.0101022Cited by 50
Negative / Null Result ReportOpen accessMedicine

Plasma sTNFR1 and IL8 for prognostic enrichment in sepsis trials: a prospective cohort study

Brian J. Anderson, Carolyn S. Calfee, Kathleen D. Liu et al. · 2019 · Critical Care

BACKGROUND: Enrichment strategies improve therapeutic targeting and trial efficiency, but enrichment factors for sepsis trials are lacking. We determined whether concentrations of soluble tumor necrosis factor receptor-1 (sTNFR1), interleukin-8 (IL8), and angiopoietin-2 (Ang2) could identify sepsis patients at higher mortality risk and serve as prognostic enrichment factors. METHODS: In a multicenter prospective cohort study of 400 critically ill septic patients, we derived and validated thresholds for each marker and expressed prognostic enrichment using risk differences (RD) of 30-day mortal

View details →DOI: 10.1186/s13054-019-2684-2Cited by 50
Negative / Null Result ReportOpen accessMedicine

Azithromycin and hydroxychloroquine in hospitalised patients with confirmed COVID-19: a randomised double-blinded placebo-controlled trial

Pradeesh Sivapalan, Charlotte Suppli Ulrik, Thérèse Lapperre et al. · 2021 · European Respiratory Journal

Background Combining the antibiotic azithromycin and hydroxychloroquine induces airway immunomodulatory effects, with the latter also having in vitro antiviral properties. This may improve outcomes in patients hospitalised for coronavirus…

View details →DOI: 10.1183/13993003.00752-2021Cited by 48
Negative / Null Result Report

A statistically predictive model for future monsoon failure in India

Jacob Schewe, Anders Levermann · 2012 · Environmental Research Letters

Abstract Indian monsoon rainfall is vital for a large share of the world’s population. Both reliably projecting India’s future precipitation and unraveling abrupt cessations of monsoon rainfall found in paleorecords require improved…

View details →DOI: 10.1088/1748-9326/7/4/044023Cited by 48
Negative / Null Result ReportOpen accessComputer Science

Preliminary study of AI-assisted diagnosis using FDG-PET/CT for axillary lymph node metastasis in patients with breast cancer

Zongyao Li, Kazuhiro Kitajima, Kenji Hirata et al. · 2021 · EJNMMI Research

Abstract Background To improve the diagnostic accuracy of axillary lymph node (LN) metastasis in breast cancer patients using 2-[ 18 F]FDG-PET/CT, we constructed an artificial intelligence (AI)-assisted diagnosis system that uses deep-learning technologies. Materials and methods Two clinicians and the new AI system retrospectively analyzed and diagnosed 414 axillae of 407 patients with biopsy-proven breast cancer who had undergone 2-[ 18 F]FDG-PET/CT before a mastectomy or breast-conserving surgery with a sentinel lymph node (LN) biopsy and/or axillary LN dissection. We designed and trained a

View details →DOI: 10.1186/s13550-021-00751-4Cited by 47
Negative / Null Result ReportOpen accessMedicine

SAKK 24/09: safety and tolerability of bevacizumab plus paclitaxel vs. 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, Martin Bigler, Roger von Moos et al. · 2016 · BMC Cancer

BACKGROUND: Adding bevacizumab to chemotherapy improves response rates and progression-free survival (PFS) in metastatic breast cancer (mBC). We aimed to demonstrate decreased toxicity with metronomic chemotherapy/bevacizumab compared with paclitaxel/bevacizumab. METHODS: This multicenter, randomized phase III trial compared bevacizumab with either paclitaxel (arm A) or daily oral capecitabine-cyclophosphamide (arm B) as first-line treatment in patients with HER2-negative advanced breast cancer. The primary endpoint was the incidence of selected grade 3-5 adverse events (AE) including: febrile

View details →DOI: 10.1186/s12885-016-2823-yCited by 46
Negative / Null Result ReportOpen accessMedicine

A segregation index combining phenotypic (clinical characteristics) and genotypic (gene expression) biomarkers from a urine sample to triage out patients presenting with hematuria who have a low probability of urothelial carcinoma

L. Kavalieris, P.J. O’Sullivan, James M. Suttie et al. · 2015 · BMC Urology

BACKGROUND: Hematuria can be symptomatic of urothelial carcinoma (UC) and ruling out patients with benign causes during primary evaluation is challenging. Patients with hematuria undergoing urological work-ups place significant clinical and financial burdens on healthcare systems. Current clinical evaluation involves processes that individually lack the sensitivity for accurate determination of UC. Algorithms and nomograms combining genotypic and phenotypic variables have largely focused on cancer detection and failed to improve performance. This study aimed to develop and validate a model inc

View details →DOI: 10.1186/s12894-015-0018-5Cited by 46
Negative / Null Result ReportOpen accessPsychology

Moderators of wellbeing interventions: Why do some people respond more positively than others?

Adele Wang, S. Katherine Nelson, Kristin Layous et al. · 2017 · PLoS ONE

Interventions rarely have a universal effect on all individuals. Reasons ranging from participant characteristics, context and fidelity of intervention completion could cause some people to respond more positively than others. Understanding these individual differences in intervention response may provide clues to the mechanisms behind the intervention, as well as inform future designs to make interventions maximally beneficial for all. Here we focus on an intervention designed to improve adolescent wellbeing, and explore potential moderators using a representative and well-powered sample. 16-

View details →DOI: 10.1371/journal.pone.0187601Cited by 44
Negative / Null Result ReportOpen accessMedicine

Immunotherapeutic Strategies for the Treatment of Glioblastoma: Current Challenges and Future Perspectives

Ilaria Salvato, Antonio Marchini · 2024 · Cancers

Despite decades of research and the best up-to-date treatments, grade 4 Glioblastoma (GBM) remains uniformly fatal with a patient median overall survival of less than 2 years. Recent advances in immunotherapy have reignited interest in utilizing immunological approaches to fight cancer. However, current immunotherapies have so far not met the anticipated expectations, achieving modest results in their journey from bench to bedside for the treatment of GBM. Understanding the intrinsic features of GBM is of crucial importance for the development of effective antitumoral strategies to improve pat

View details →DOI: 10.3390/cancers16071276Cited by 44
Negative / Null Result ReportOpen accessMedicine

New Developments in the Treatment of Schizophrenia: An Expert Roundtable

Joshua T. Kantrowitz, Christoph U. Correll, Rakesh Jain et al. · 2023 · The International Journal of Neuropsychopharmacology

BACKGROUND: Schizophrenia is a disabling disorder that profoundly affects functioning and quality of life. While available antipsychotics have improved outcomes for patients with schizophrenia, they are relatively ineffective for negative and cognitive symptoms and are associated with a range of troublesome side effects. A significant unmet medical need for more effective and better-tolerated therapies remains. METHODS: A roundtable consisting of 4 experts in the treatment of patients with schizophrenia convened to discuss the current treatment landscape, unmet needs from patient and societal

View details →DOI: 10.1093/ijnp/pyad011Cited by 44
Negative / Null Result ReportOpen accessMedicine

Targeting Treg-Expressed STAT3 Enhances NK-Mediated Surveillance of Metastasis and Improves Therapeutic Response in Pancreatic Adenocarcinoma

Miles Piper, Benjamin Van Court, Adam Mueller et al. · 2021 · Clinical Cancer Research

PURPOSE: Metastasis remains a major hurdle in treating aggressive malignancies such as pancreatic ductal adenocarcinoma (PDAC). Improving response to treatment, therefore, requires a more detailed characterization of the cellular…

View details →DOI: 10.1158/1078-0432.ccr-21-2767Cited by 43
Negative / Null Result ReportOpen accessNeuroscience

Statistically significant features improve binary and multiple Motor Imagery task predictions from EEGs

Mürşide Değirmenci, Yılmaz Kemal Yüce, Matjaž Perc et al. · 2023 · Frontiers in Human Neuroscience

In recent studies, in the field of Brain-Computer Interface (BCI), researchers have focused on Motor Imagery tasks. Motor Imagery-based electroencephalogram (EEG) signals provide the interaction and communication between the paralyzed patients and the outside world for moving and controlling external devices such as wheelchair and moving cursors. However, current approaches in the Motor Imagery-BCI system design require effective feature extraction methods and classification algorithms to acquire discriminative features from EEG signals due to the non-linear and non-stationary structure of EEG

View details →DOI: 10.3389/fnhum.2023.1223307Cited by 43
Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology

Performance of virtual screening against GPCR homology models: Impact of template selection and treatment of binding site plasticity

Mariama Jaiteh, Ismael Rodríguez‐Espigares, Jana Selent et al. · 2020 · PLoS Computational Biology

Rational drug design for G protein-coupled receptors (GPCRs) is limited by the small number of available atomic resolution structures. We assessed the use of homology modeling to predict the structures of two therapeutically relevant GPCRs and strategies to improve the performance of virtual screening against modeled binding sites. Homology models of the D2 dopamine (D2R) and serotonin 5-HT2A receptors (5-HT2AR) were generated based on crystal structures of 16 different GPCRs. Comparison of the homology models to D2R and 5-HT2AR crystal structures showed that accurate predictions could be obta

View details →DOI: 10.1371/journal.pcbi.1007680Cited by 43
Negative / Null Result ReportOpen accessMedicine

A multi-site study on medical school selection, performance, motivation and engagement

Anouk Wouters, Gerda Croiset, Nienke R. Schripsema et al. · 2017 · Advances in Health Sciences Education

Medical schools seek ways to improve their admissions strategies, since the available methods prove to be suboptimal for selecting the best and most motivated students. In this multi-site cross-sectional questionnaire study, we examined the value of (different) selection procedures compared to a weighted lottery procedure, which includes direct admission based on top pre-university grade point averages (≥8 out of 10; top-pu-GPA). We also considered whether students had participated in selection, prior to being admitted through weighted lottery. Year-1 (pre-clinical) and Year-4 (clinical) stude

View details →DOI: 10.1007/s10459-016-9745-yCited by 43
Negative / Null Result ReportOpen accessMedicine

Severe Radiation-Induced Lymphopenia Attenuates the Benefit of Durvalumab After Concurrent Chemoradiotherapy for NSCLC

Jing Wang, Ting Xu, Lirong Wu et al. · 2022 · JTO Clinical and Research Reports

IntroductionDurvalumab after concurrent chemoradiation (CCRT) for NSCLC improves survival, but only in a subset of patients. We investigated the effect of severe radiation-induced lymphopenia (sRIL) on survival in these…

View details →DOI: 10.1016/j.jtocrr.2022.100391Cited by 42
Negative / Null Result ReportOpen accessMedicine

Increased survival of cirrhotic patients with septic shock

Bertrand Sauneuf, Benoît Champigneulle, Alexis Soummer et al. · 2013 · Critical Care

INTRODUCTION: The overall outcome of septic shock has been recently improved. We sought to determine whether this survival gain extends to the high-risk subgroup of patients with cirrhosis. METHODS: Cirrhotic patients with septic shock admitted to a medical intensive care unit (ICU) during two consecutive periods (1997-2004 and 2005-2010) were retrospectively studied. RESULTS: Forty-seven and 42 cirrhotic patients presented with septic shock in 1997-2004 and 2005-2010, respectively. The recent period differed from the previous one by implementation of adjuvant treatments of septic shock includ

View details →DOI: 10.1186/cc12687Cited by 42
Negative / Null Result ReportOpen accessSocial Sciences

The Incredible Years® Teacher Classroom Management programme and its impact on teachers’ professional self‐efficacy, work‐related stress, and general well‐being: Results from the STARS randomized controlled trial

Rachel Hayes, Daniel Titheradge, Kate Allen et al. · 2019 · British Journal of Educational Psychology

BACKGROUND: Teaching is a stressful occupation with poor retention. The Incredible Years® Teacher Classroom Management (TCM) programme is a training programme that research has demonstrated may be an effective intervention for improving…

View details →DOI: 10.1111/bjep.12284Cited by 41
Negative / Null Result ReportOpen accessMedicine

Ultra-radical upfront surgery does not improve survival in women with advanced epithelial ovarian cancer; a natural experiment in a complete population

Henrik Falconer, Ulrika Joneborg, Kamilla Krawiec et al. · 2020 · Gynecologic Oncology

OBJECTIVE: Ultra-radical surgery to achieve complete resection in advanced epithelial ovarian cancer (EOC) has been widely accepted without strong supporting data. Our objective was to assess overall survival after a structured shift to an ultra-radical upfront surgical treatment algorithm and to investigate changes in the distribution of primary treatments after this shift. PATIENTS AND METHODS: In this population-based cohort study, all women with suspected EOC in the Stockholm-Gotland region of Sweden reported to the Swedish Quality Registry for Gynecologic Cancer (SQRGC) and National Cance

View details →DOI: 10.1016/j.ygyno.2020.07.009Cited by 41
Negative / Null Result ReportOpen accessMedicine

Effect of intravenous clarithromycin in patients with sepsis, respiratory and multiple organ dysfunction syndrome: a randomized clinical trial

Eleni Karakike, Brendon P. Scicluna, Maria Roumpoutsou et al. · 2022 · Critical Care

BACKGROUND: Clarithromycin may act as immune-regulating treatment in sepsis and acute respiratory dysfunction syndrome. However, clinical evidence remains inconclusive. We aimed to evaluate whether clarithromycin improves 28-day mortality among patients with sepsis, respiratory and multiple organ dysfunction syndrome. METHODS: We conducted a multicenter, randomized, clinical trial in patients with sepsis. Participants with ratio of partial oxygen pressure to fraction of inspired oxygen less than 200 and more than 3 SOFA points from systems other than the respiratory function were enrolled betw

View details →DOI: 10.1186/s13054-022-04055-4Cited by 41
Negative / Null Result ReportOpen accessMedicine

Revealing the role of SPP1+ macrophages in glioma prognosis and therapeutic targeting by investigating tumor-associated macrophage landscape in grade 2 and 3 gliomas

Wenshu Tang, Cario W. S. Lo, Wei Ma et al. · 2024 · Cell & Bioscience

BACKGROUND: Glioma is a highly heterogeneous brain tumor categorized into World Health Organization (WHO) grades 1-4 based on its malignancy. The suppressive immune microenvironment of glioma contributes significantly to unfavourable patient outcomes. However, the cellular composition and their complex interplays within the glioma environment remain poorly understood, and reliable prognostic markers remain elusive. Therefore, in-depth exploration of the tumor microenvironment (TME) and identification of predictive markers are crucial for improving the clinical management of glioma patients. RE

View details →DOI: 10.1186/s13578-024-01218-4Cited by 41
Negative / Null Result ReportOpen accessMedicine

Efficacy of Different Nitric Oxide-Based Strategies in Preventing Experimental Cerebral Malaria by Plasmodium berghei ANKA

Yuri Chaves Martins, Graziela Maria Zaniní, John A. Frangos et al. · 2012 · PLoS ONE

BACKGROUND: Low nitric oxide (NO) bioavailability plays a role in the pathogenesis of human as well as of experimental cerebral malaria (ECM) caused by Plasmodium berghei ANKA (PbA). ECM is partially prevented by administration of the NO-donor dipropylenetriamine NONOate (DPTA-NO) at high concentration (1 mg/mouse), which also induces major side effects such as a sharp drop in blood pressure. We asked whether alternative strategies to improve NO bioavailability with minor side effects would also be effective in preventing ECM. METHODOLOGY/PRINCIPAL FINDINGS: Mice were infected with PbA and pro

View details →DOI: 10.1371/journal.pone.0032048Cited by 40