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19,823 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 ReportMedicine

Rhythmic movements mimicking tremor under different metronome conditions.

Uzunçakmak-Uyanık H, Yıldız FG, Yalçın-Çakmaklı G et al. · 2026 · Scientific reports

Rhythmic movements mimicking tremor are commonly used as a control condition in tremor physiology studies, yet the influence of different metronome modalities on performance has not been systematically examined. We compared auditory,…

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Negative / Null Result ReportMedicine

MicroRNA Dysregulation and Hepatic Involvement in Alcohol-Related Macrocytic Anaemia: Links to Severity Without Predictive Value for Treatment Response.

Porr C, Vidrighin A, Ichim C et al. · 2026 · Life (Basel, Switzerland)

Background Alcohol-related macrocytic anemia remains insufficiently characterized, particularly regarding molecular correlates of disease severity and treatment response. We evaluated the hepatic, inflammatory and microRNA profile of…

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Negative / Null Result ReportMedicine

Epidural thickness of the dura sealants HEMOPATCH® and TACHOSIL® after elective supratentorial craniotomy: A comparative retrospective monocentric cohort study.

Rossmann J, Schicho A, Höhne J et al. · 2026 · Journal of biomaterials applications

This study compares the in vivo behavior (epidural thickness and complication rate including the development of cerebrospinal fluid fistula, CSF-fistula) of the newer dura sealant HEMOPATCH® (HP) with that of the well-established patch…

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Negative / Null Result ReportMedicine

Challenging the standard: comparison of outcomes between laparoscopically assisted anorectoplasty (LAARP) and posterior sagittal anorectoplasty (PSARP) in the correction of rectobulbar fistula in pediatric patients.

Carreño Sanchez MA, Ruiz J, Siffredi J et al. · 2026 · Pediatric surgery international

Background Posterior sagittal anorectoplasty (PSARP) remains the standard surgical approach for rectobulbar fistula in patients with anorectal malformations (ARM). Laparoscopically assisted anorectoplasty (LAARP) has emerged as an…

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Negative / Null Result Report

Dose-Dependent Effects of Nodule-Associated Kosakonia cowanii on Nodulation, Nitrogen Status and Yield Components of Common Bean ( Phaseolus vulgaris L.) Under Greenhouse Conditions in Northern Ecuador

Berutti Suárez L, Andrade Cadena JV, Puerres Caicedo EC et al. · 2026 · Preprint

This study evaluated the dose dependent effects of a nodule associated bacterial isolate subsequently identified by whole genome sequencing as Kosakonia cowanii on nodulation, nitrogen status, growth, phenology and yield components of…

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Negative / Null Result ReportMedicine

Effect of use of ambient listening technology on patient-reported communication and satisfaction ratings.

Taylor SL, Aizenberg D, Jost M et al. · 2026 · Journal of the American Medical Informatics Association : JAMIA

Objectives Evaluate the impact of ambient listening AI scribe technology for drafting notes on patient-reported communication and satisfaction ratings of their physician during ambulatory visits. Materials and methods We conducted a pilot…

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Negative / Null Result ReportMedicine

The Performance of Large Language Models on Antibiotic Prophylaxis for Endodontic Treatments.

Goker Kamali S, Imamoglu YT · 2026 · Australian endodontic journal : the journal of the Australian Society of Endodontology Inc

This study compared the accuracy and repeatability of responses generated by three advanced language models (ChatGPT-4, Gemini, and DeepSeek) in determining the necessity and appropriate regimen of antibiotic prophylaxis in endodontic…

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Negative / Null Result ReportMedicine

Masseter microvascular perfusion after minimally invasive sagittal split ramus osteotomy: A long-term split-mouth study.

Şahin M, Asan CY, Çukurluoğlu A et al. · 2026 · Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery

Sagittal split ramus osteotomy (SSRO), a widely used mandibular procedure in orthognathic surgery, may affect the masticatory muscles through subperiosteal dissection and soft-tissue manipulation. Although minimally invasive modifications…

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Negative / Null Result ReportMedicine

Clinical roles and workflow characteristics of the 3D 4K exoscope in brain tumor surgery: A single-center retrospective observational study.

Ogiwara T, Sato A, Wakabayashi M et al. · 2026 · Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia

Background The three-dimensional (3D) 4K exoscope has emerged as a practical visualization platform in neurosurgery, offering high-resolution imaging together with ergonomic and workflow-related advantages. The aim of this study was to…

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Negative / Null Result ReportMedicine

Real-World Outcomes of Barbed Versus Interrupted Sutures for Laparoscopic Choledochotomy: A 12-Month Follow-Up in Patients With Choledocholithiasis.

Zhao P, Zhou Y, Zhang C et al. · 2026 · Surgical laparoscopy, endoscopy & percutaneous techniques

Background The optimal suture technique for primary closure after laparoscopic choledochotomy remains uncertain. We compared real-world outcomes of barbed continuous and conventional interrupted sutures in patients with…

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Negative / Null Result ReportMedicine

Do anaerobic bottles add value? A comparative study of blood culture bottle combinations in a tertiary care centre.

Benedict Vinothini A, Mythilipraba S, Punnen SA et al. · 2026 · Indian journal of medical microbiology

Background Bloodstream infections (BSIs) require rapid identification and susceptibility testing to guide timely antimicrobial therapy. Although paired aerobic and anaerobic blood culture bottles are routinely used, the incremental benefit…

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Negative / Null Result ReportMedicine

Sphincter-sparing pre-closure technique-assisted endoscopic papillectomy versus conventional endoscopic papillectomy for duodenal papilla adenomas: a multicenter retrospective cohort study.

Liu FQ, Ren LN, Zhou XR et al. · 2026 · Gastrointestinal endoscopy

Background and aims This multicenter retrospective cohort study aims to evaluate the efficacy and safety of sphincter-sparing pre-closure technique-assisted endoscopic papillectomy (EP) versus conventional EP for duodenal papilla adenomas.…

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Negative / Null Result ReportOpen accessMedicine

Perceived leg length discrepancy after total hip arthroplasty is associated with global spinopelvic coronal flexibility.

Minoji S, Ishikura H, Kudo M et al. · 2026 · Archives of orthopaedic and trauma surgery

Background Perceived leg length discrepancy (pLLD) is a common source of dissatisfaction after total hip arthroplasty (THA), even in the absence of significant radiographic discrepancies. While spinopelvic factors have been increasingly…

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Negative / Null Result ReportOpen accessMedicine

Interfascial Plane Blocks for Perioperative Analgesia in Dogs Undergoing Laparoscopic Ovariectomy: A Retrospective Study (2020-2025).

Paolini A, Serpieri M, Bonaffini G et al. · 2026 · Animals : an open access journal from MDPI

This retrospective study compared three ultrasound-guided locoregional techniques-transversus abdominis plane (TAP), quadratus lumborum (QL), and caudal thoracic paravertebral (C-TPV) blocks-in dogs undergoing laparoscopic ovariectomy.…

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Negative / Null Result ReportMedicine

Determinants of Patient-Reported Experience After Interhospital Transfer Within an Integrated Health System.

Howick V JF, Lugo-Fagundo NS, Umadat G et al. · 2026 · Journal for healthcare quality : official publication of the National Association for Healthcare Quality

Objective To evaluate patient-reported experiences after interhospital transfer (IHT) within an integrated health system and identify communication and coordination domains associated with overall satisfaction. Methods This retrospective…

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