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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.

19821 results in Negative / Null Result Report · page 193 of 661

Negative / Null Result ReportOpen accessMedicine

Novel factors associated with surgical conversion for duodenal perforation: case control study.

IShii K, Nishimura E, Tajima Y et al. · 2026 · Annals of medicine and surgery (2012)

Background Based on initial evaluation using indication criteria, conservative treatment or surgery is selected for duodenal ulcer perforation. However, some patients fail conservative management and require surgical intervention. This…

View details →DOI: 10.1097/ms9.0000000000004860
Negative / Null Result ReportOpen accessMedicine

Clinical outcomes of implants in atrophic ridges augmented with collagenated xenogeneic or autogenous bone: 4-year follow-up of a randomized clinical trial.

Romito GA, Soares HH, Nishyama R et al. · 2026 · Brazilian oral research

This study aimed to evaluate the long-term outcomes of dental implants placed in alveolar ridges augmented with collagenated xenogeneic bone blocks (CXBB) or autogenous bone blocks (ABB). In this non-interventional study, 20 patients…

View details →DOI: 10.1590/1807-3107bor-2026.vol40.030
Negative / Null Result ReportOpen accessMedicine

Taurine supplementation in fish meal-free diet improved growth, alleviated hypoxic-induced gill injury associating with Ca<sup>2+</sup> homeostasis and endoplasmic reticulum stress in sub-adult grass carp (<i>Ctenopharyngodon idella</i>).

Yan J, Feng L, Wu P et al. · 2026 · Animal nutrition (Zhongguo xu mu shou yi xue hui)

Taurine is a multifunctional feed additive that is abundant in fish meal but scarce in plant protein sources. The aim of this study was to investigate the effects of taurine supplementation in fish meal-free diet on sub-adult grass carp (…

View details →DOI: 10.1016/j.aninu.2025.10.016
Negative / Null Result ReportOpen accessMedicine

Impact of Continuous Nursing Intervention Delivered via Internet+ Platform on Inflammatory Responses in Ulcerative Colitis Patients.

Zhu J, Ren X, Wang Q et al. · 2026 · Patient preference and adherence

Objective To explore the application effect of continuity nursing intervention based on the "Internet +" platform in patients with ulcerative colitis (UC) and analyze its impact on patients' inflammatory responses. Methods A retrospective…

View details →DOI: 10.2147/ppa.s571511
Negative / Null Result ReportOpen accessMedicine

Studying the expression levels of LncRNA-MEG3 and miR-147b in the serum of psoriasis patients with and without dyslipidemia.

Kamel M, Marzouk RE, Shaker OG et al. · 2026 · Scientific reports

Psoriasis is a chronic systemic inflammatory skin disorder that is strongly associated with metabolic disorders, including obesity, insulin resistance, hypertension, and dyslipidemia. Dyslipidemia causes abnormalities in lipid profiles,…

View details →DOI: 10.1038/s41598-026-52391-0
Negative / Null Result ReportMedicine

The effectiveness of virtual reality in reducing preoperative anxiety among oral surgery patients under general anesthesia: a salivary stress biomarker and questionnaire-based study.

Yuza AT, Nurwiadh A, Hadikhrisna I et al. · 2026 · BMC oral health

Background Preoperative anxiety is a common psychological response to surgical operations affecting the emotional, cognitive and physiological state of the patient. It can be measured by both objective and subjective methods. While the…

View details →DOI: 10.1186/s12903-026-08466-5
Negative / Null Result ReportMedicine

Craniofacial Growth and Hypodontia in Individuals Born with Van der Woude Syndrome.

Vesterbacka M, Parikakis K, Ganzer N et al. · 2026 · The Cleft palate-craniofacial journal : official publication of the American Cleft Palate-Craniofacial Association

ObjectiveTo study craniofacial growth and hypodontia in individuals born with Van der Woude syndrome (VWS) and compare with matched controls with and without a cleft.DesignA multicenter retrospective case-control study.SettingIndividuals…

View details →DOI: 10.1177/10556656261463128
Negative / Null Result ReportOpen accessMedicine

Optical coherence tomography angiography evaluation of retinal and choriocapillaris changes after pars plana vitrectomy for macula-off rhegmatogenous retinal detachment: perfluoropropane versus silicone oil tamponade.

Karatepe MS, Erol YÖ · 2026 · BMC ophthalmology

BACKGROUND: Rhegmatogenous retinal detachment (RRD) with macular involvement may lead to persistent visual impairment despite successful anatomical repair. Different intravitreal tamponade agents used during pars plana vitrectomy (PPV) may…

View details →DOI: 10.1186/s12886-026-04760-6
Negative / Null Result Report

Underrecognized Osteoporosis in Internal Medicine Outpatients: Sex-Specific Disparities in Prevalence, Risk Stratification, and Treatment in a Large Elderly Cohort

Okuno R, Homma Y, Matsuno K et al. · 2026 · Preprint

Abstract Background: As the population ages, osteoporosis is becoming a substantial health problem. Internal medicine outpatients often have multiple comorbidities and are considered at high risk for osteoporosis; however, osteoporosis…

View details →DOI: 10.21203/rs.3.rs-9878157/v1
Negative / Null Result ReportOpen accessMedicine

Allelopathic effects of four spontaneous plants from arid regions on the germination and growth of selected weeds and crops.

Harabi M, Elfalleh W, Mergby D et al. · 2026 · Frontiers in pharmacology

The study investigates the allelopathic potential of the aqueous extracts of four plants species; Cleome arabica L., Diplotaxis harra (Forssk.) Boiss., Nerium oleander L., and Retama raetam (Forssk.) Webb. Collected from Tunisian arid…

View details →DOI: 10.3389/fphar.2026.1746401
Negative / Null Result ReportOpen accessMedicine

Correlation of Scaphotrapezoid Contact Pressures With Degree of Trapezoid Resection: Does Eliminating Contact Matter?

Anz H, Roylance J, Ismaily S et al. · 2026 · Journal of hand surgery global online

Purpose Scaphotrapeziotrapezoid (STT) arthritis is the third most common hand arthritis in the United States. In the setting of thumb carpometacarpal arthroplasty, varying degrees of partial excision of the proximal trapezoid have been…

View details →DOI: 10.1016/j.jhsg.2026.101049
Negative / Null Result ReportOpen accessMedicine

Differential spatiotemporal dynamics of cell wall-degrading enzymes underlie pathogenicity variation in two <i>Alternaria</i> species causing kiwifruit soft rot.

Ling LZ, Tai SH, Teng H et al. · 2026 · PeerJ

Kiwifruit soft rot caused by fungal pathogens can result in substantial postharvest losses. While Alternaria alternata and A. tenuissima have been implicated in this disease, their pathogenic mechanisms remain poorly characterized. This…

View details →DOI: 10.7717/peerj.21223
Negative / Null Result Report

Digital Transformation, Governance Quality, and International Portfolio Optimisation: Evidence from the European Communication Services Sector

Nawlo M, Alkaraan F, Katalo H · 2026 · Preprint

Digital transformation is reshaping industries, business models, and investment opportunities, creating new challenges for international portfolio management. The European communication services sector has become a strategic component of…

View details →DOI: 10.20944/preprints202606.0844.v1
Negative / Null Result ReportOpen accessMedicine

Instability of Oculomotor Control in Parkinson's Disease Without Freezing of Gait: Evidence From Reflexive and Voluntary Saccade Variability.

Daeinejad FS, Foumani MS, Behzadipour S et al. · 2026 · The European journal of neuroscience

Parkinson's disease (PD) is associated with alterations in both voluntary and reflexive eye movements; however, the characteristics of oculomotor variability across task contexts remain incompletely understood. This study investigated…

View details →DOI: 10.1111/ejn.70443
Negative / Null Result ReportOpen accessMedicine

Osteogenic Differentiation Induced by Dental Pulp Stem Cells Secretome: A Dose-Dependent Comparative Study.

Kadkhodazadeh M, Amid R, Kheiri A et al. · 2026 · Clinical and experimental dental research

Objectives To investigate the effects of dental pulp stem cell-derived conditioned medium (DPSC-CM) on the proliferation, migration, and osteogenic differentiation of periodontal ligament stem cells (PDLSCs). Primary goals were to (i)…

View details →DOI: 10.1002/cre2.70395
Negative / Null Result ReportMedicine

Comparison of Myringoplasty Outcomes Among External Auditory Canal Packing, Blood on the Graft Surface, or No External Auditory Canal Packing for Chronic Tympanic Membrane Perforation: A Randomized Study.

Lou Z, Yang H · 2026 · Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology

Objective The objective of this study was to compare graft outcomes and complications of myringoplasty among external auditory canal packing (EAC) with Nasopore, blood on the graft surface, and no EAC packing. Materials and methods…

View details →DOI: 10.1097/mao.0000000000004914
Negative / Null Result ReportMedicine

Diagnostic Performance of Diffusion-Weighted Imaging for Evaluation of Breast Lesions: Correlation With Prognostic Factors and Histological Phenotypes.

Konukoglu O, Kaya M, Arslan BC · 2026 · Journal of clinical ultrasound : JCU

Purpose To investigate the role of diffusion-weighted imaging (DWI) in the differential diagnosis of breast lesions and to determine whether there is an association with histological subtypes and prognostic factors. Materials & methods…

View details →DOI: 10.1002/jcu.70303
Negative / Null Result ReportOpen accessMedicine

The use of systemic immune-inflammation index in the differential diagnosis of acute scrotum in children.

Madenci H, Ugur C · 2026 · Pakistan journal of medical sciences

Background & objectives Acute scrotum is an emergency condition characterized by scrotal pain, swelling, and erythema. While testicular torsion requires emergency surgery, epididymo-orchitis requires medical treatment. In our study, we…

View details →DOI: 10.12669/pjms.42.4.14849
Negative / Null Result ReportOpen accessMedicine

Impact of maintaining apical patency on cleaning potentials of XP-endo Finisher in curved root canals.

Abdelgawad RA · 2026 · Journal of conservative dentistry and endodontics

Background Obtaining optimum cleanliness of root canal walls through mechanical and chemical tools has not yet been attained, mostly in the apical third of the root canal, and it has become more difficult in curved canals. This work aimed…

View details →DOI: 10.4103/jcde.jcde_114_26
Negative / Null Result ReportOpen accessMedicine

Effects of four weeks of inspiratory muscle training with different resistance modalities on pulmonary function and specialized athletic ability in synchronized swimmers: a randomised trial.

Xu H, Fan Y · 2026 · Scientific reports

This study applies resistance inspiratory muscle training to synchronized swimmers and through two resistance setting methods to explore that the differences in the effects of four weeks of dynamic constant load resistance training versus…

View details →DOI: 10.1038/s41598-026-43018-5
Negative / Null Result ReportOpen accessMedicine

Impact of combined vascular resection on short and long-term results following radical surgery for hilar cholangiocarcinoma: evidence from a systematic assessment.

Che S, Saad SA, Wang Y et al. · 2026 · World journal of surgical oncology

OBJECTIVE: To analyze the impact of portal vein resection (PVR) and hepatic artery resection (HAR) on the short-term and long-term outcomes of patients with hilar cholangiocarcinoma after surgery. METHODS: A comprehensive literature search…

View details →DOI: 10.1186/s12957-026-04301-x
Negative / Null Result ReportMedicine

The Coronal Lateral Collateral Ligament Sign Occurs Independent of Generalized Joint Hyperlaxity in Children and Adolescents With ACL-Deficient Knees.

Pedrick EG, Mitchell BC, Bomar JD et al. · 2026 · Journal of pediatric orthopedics

Background The lateral collateral ligament (LCL) sign is known to be correlated with greater anterior tibial translation (ATT) and internal tibial rotation in the setting of anterior cruciate ligament (ACL) tear. The LCL sign has also been…

View details →DOI: 10.1097/bpo.0000000000003376
Negative / Null Result ReportOpen accessMedicine

β-Glucan training induces stimulus-dependent immune and metabolic modulation in head kidney leukocytes that persists for several days in Atlantic salmon (<i>Salmo salar</i> L.).

Nhan TH, Tort L, Lazado CC · 2026 · Frontiers in immunology

The innate immune system of fish has conventionally been considered incapable of immunological memory, but is now being recognised as exhibiting memory-like features known as trained immunity. This study investigated the induction of…

View details →DOI: 10.3389/fimmu.2026.1815436
Negative / Null Result ReportMedicine

Poller K-Wires versus Screws in Distal Tibial Nailing: Non-Inferior Union with Superior Efficiency and Better Alignment.

Yildirim AM, Bayram S, Karaçam MI et al. · 2026 · Acta chirurgiae orthopaedicae et traumatologiae Cechoslovaca

Purpose of the study To compare the short-term outcomes and complications of the poller screw (PS) and the poller K-wire (PW) in distal tibia nailing. Material and methods In the present study, a retrospective analysis was performed on…

View details →DOI: 10.55095/achot2026/011