Negative / Null Result Report
Ashraf Wahba, Khaled Abdelaal, Ayman Yehia et al. · 2022 · Medicina
Background and Objectives: Obstructive sleep apnea (OSA) is a sleep-related respiratory disorder that affects between 5% and 20% of the population. In obstructive sleep apnea, lingual tonsillar hypertrophy (LTH) has been suggested as a…
View details →Negative / Null Result Report
Rahul Sampath, Nathan W. Cummins, Andrew D. Badley · 2016 · Journal of Cell Death
HIV cure is now the focus of intense research after Timothy Ray Brown (the Berlin patient) set the precedent of being the first and only person cured. A major barrier to achieving this goal on a meaningful scale is an elimination of the…
View details →Negative / Null Result Report
Helene Hill, Joel Pitt · 2014 · Publications
Repeated failures to replicate reported experimental results could indicate scientific misconduct or simply result from unintended error. Experiments performed by one individual involving tritiated thymidine, published in two papers in…
View details →Negative / Null Result Report
Ke Li, Hengbing Guo, Fenglong Sun et al. · 2024 · Journal of Orthopaedic Surgery
Purpose This study aims to compare the mid-term radiographic, clinical results and survivorship between distal tibial tuberosity high tibial osteotomy (DTT-HTO) and conventional biplanar medial open-wedge high tibial osteotomy (cOW-HTO).…
View details →Negative / Null Result Report
Rory D. Cottrell, Tinghong Zhou, John A. Tarduno · 2024 · Scientific Data
Abstract The absence or presence of a lunar paleomagnetosphere is important because it bears directly on the volatile content of the regolith and exploration targets for Artemis and other missions to the Moon. Recent paleointensity study…
View details →Negative / Null Result Report
Victor Jayeola, C Parsons, L Gorski et al. · 2019 · FEMS Microbiology Letters
ABSTRACT Several outbreaks of listeriosis have implicated fresh produce but genetic factors required for growth of Listeria monocytogenes on produce remain poorly characterized. Based on the fact that β-lactam antibiotics only kill…
View details →Negative / Null Result Report
Rif Miles Olsen · 2022 · Minerals
Between 2004 and 2018, NASA’s rover Opportunity found huge numbers of small, hematite-rich spherules (commonly called blueberries) on the Meridiani Planum of Mars. The standard oxide composition distributions of blueberries have remained…
View details →Negative / Null Result Report
Ronnie LaMastro, Noel Vera-Gonzalez, Kayla Campbell et al. · 2021 · Access Microbiology
Candida albicans infections can be challenging to treat, as current antifungal drugs exhibit poor water solubility and host toxicity. To overcome these issues, new methods of drug delivery are needed. Liposomes have been shown to be an…
View details →Negative / Null Result Report
Iván Sánchez-Iglesias, Celia Martín-Aguilar · 2023 · Journal of Clinical Medicine
Clinical trials are the backbone of medical scientific research. However, this experimental strategy has some drawbacks. We focused on two issues: (a) The internal validity ensured by clinical trial procedures does not necessarily allow…
View details →Negative / Null Result Report
Anna Ness, Ali Zarei‐Baygi, Dave Macnevin · 2023 · Opflow
Available, effective methods of virus detection adequately address the risks in treating water for potable reuse.
View details →Failed Experiment Report
Nathan Cofnas · 2022 · Academic Questions
Seven years ago, under the leadership of Jonathan Haidt, Heterodox Academy set out to organize a meaningful resistance to the reigning social justice orthodoxy on campus. “Seven years later,” writes Nathan Cofnas, “you can count HxA’s…
View details →Negative / Null Result Report
Caroline R. Toth, Brian J. Schutte · 2024 · Weed Science
Abstract Barley ( Hordeum vulgare L.) and brown mustard [ Brassica juncea (L.) Czern.] are winter cover crops known to produce allelochemicals that suppress plant growth. Incorporating barley or brown mustard residues into the soil before…
View details →Negative / Null Result Report
Jing Wu · 2022 · Wireless Communications and Mobile Computing
Chinese A‐shares were officially included in the Morgan Stanley Capital International (MSCI) Emerging Markets Index from June 2018. The inclusion of the A‐share market into the MSCI Index is one of the most influential events in the…
View details →Negative / Null Result Report
E. Ergüder, C. Verkade, C. Ersak et al. · 2025 · Colorectal Disease
Abstract Aim To assess the outcomes of transanal advancement flap repair (TAFR) following failed ligation of intersphincteric fistula tract (LIFT) treatment for cryptoglandular anal fistulas, with a focus on healing and functional results.…
View details →Negative / Null Result Report
Jacqueline Lubin, null null, null null et al. · 2020 · John Heinrichs Scholarly & Creative Activities Day
Research has shown there is a positive correlation between self-determination skills and quality of life of college students with autism spectrum disorder (ASD). The purpose of this literature review is to highlight research on…
View details →Negative / Null Result Report
Arash Farhadian, Mayce Arreem Issa, Karl Kingsley et al. · 2024 · Pediatric Reports
Recent evidence suggests that an ever-growing number of pediatric patients require invasive treatments such as root canal therapy (RCT) in their permanent dentition, albeit with little information about risk factors such as prior invasive…
View details →Negative / Null Result Report
Vidhu Anand, Christopher G. Scott, Khaled Ali et al. · 2025 · Journal of the American Heart Association
Background Tricuspid valve surgery is recommended for severe isolated tricuspid regurgitation (TR) if symptoms persist despite optimal medical therapy. The definition of optimal therapy for TR is unclear beyond managing underlying…
View details →Negative / Null Result Report
James A. Kelhoffer · 2018 · Early Christianity
Eine sprachliche Analyse der stilistischen und theologischen Eigenheiten von 2Clem 19,1–20,5 im Vergleich zu 2Clem 1–18 macht einige Unterschiede deutlich, die für die letzten beiden Kapitel sehr wahrscheinlich auf einen späteren Autor…
View details →Negative / Null Result Report
Jian-Yong Wang, Lei Cui, Hong-Yi Shi et al. · 2023 · Frontiers in Genetics
Background: DNA methylation plays an important role in Parkinson’s disease (PD) pathogenesis. DNA methyltransferase 1 (DNMT1) is critical for maintaining DNA methylation in mammals. The link between DNMT1 polymorphisms and PD remains…
View details →Negative / Null Result Report
Zack J. Quirk, Selena Y. Smith, R. Paul Acosta et al. · 2024 · American Journal of Botany
Abstract Premise The ecological conditions that constrain plants to an environmental niche are assumed to be constant through time. While the fossil record has been used previously to test for niche conservatism of woody flowering plants,…
View details →Negative / Null Result Report
Marie Kostelanska, Karel Holada · 2022 · Molecules
Prion disorders, or transmissible spongiform encephalophaties (TSE), are fatal neurodegenerative diseases affecting mammals. Prion-infectious particles comprise of misfolded pathological prion proteins (PrPTSE). Different TSEs are…
View details →Negative / Null Result Report
Edy Wibowo, Naily Ulya, Mamat Rokhmat · 2025 · Physics Education
Abstract Here, we present an inquiry-based, low-cost rolling motion experiment as an alternative to traditional ‘confirm g ‘activities, integrating both confirmatory and inquiry-based elements. Using seven everyday objects—modeled as…
View details →Negative / Null Result Report
Shaojun Nong, Yangbo Guan, Zhiwei Wang et al. · 2019 · Oncology and Translational Medicine
Abstract Objective Recent studies have shown abnormal expression of octamer-binding transcription factor 4 (OCT4) and interleukin-18 (IL-18) to be related to cancer. However, the molecular mechanisms by which the IL-18 and OCT4 gene…
View details →Negative / Null Result Report
Ruilin Xiong, Wei Wang, Xianwen Shang et al. · 2023 · Therapeutic Advances in Ophthalmology
Background: Diabetic retinopathy, a common microvascular complication of diabetes mellitus, is one of the leading causes of vision loss worldwide. Although some oral drugs have been suggested to affect the risk of diabetic retinopathy,…
View details →Negative / Null Result Report
Ana Gabriela Pérez-Castillo, Weynner Giraldo-Sanclemente, Mayela Monge-Muñoz et al. · 2024 · Frontiers in Agronomy
Urea is widely used as nitrogen (N) source for rice fertilization in Costa Rica, despite its low efficiency linked to ammonia losses. To assess urea management alternatives, two field experiments were conducted in the Central Pacific…
View details →Negative / Null Result Report
H Kim, H-C Shin, CK Yom et al. · 2010 · Cancer Research
Abstract Purpose: CYP2D6 variant alleles have been suspected to influence on the clinical efficacy of tamoxifen because CYP2D6 is an enzyme which metabolizes tamoxifen into its active forms, endoxifen and 4-hydroxytomoxifen. This study was…
View details →Negative / Null Result Report
Alexandra Lenhard, Marie-Pierre Minten, Wolfgang Lenhard · 2023 · Frontiers in Psychology
Introduction In this study, we investigated the impact of age on mate selection preferences in males and females, and explored how the formation and duration of committed relationships depend on the sex of the person making the selection.…
View details →Negative / Null Result Report
Emiliya Vacheva, Borislav Naumov · 2024 · Historia naturalis bulgarica
The eastern green lizard (Lacerta viridis) is a mostly insectivorous species, based on multiple studies from across its range. However, for Bulgaria the published data of such kind are limited to five publications. We investigated faecal…
View details →Negative / Null Result Report
Tom Love · 2025 · Research Notes of the AAS
Abstract A recent study found pulsation frequencies in the RR Lyrae star HH Puppis that were identified as gravity modes, and argued that this phenomenon could explain the Blazhko effect in which pulsations of RR Lyrae stars undergo long…
View details →Negative / Null Result Report
Sehoon Park, Yisak Kim, Chung Hee Baek et al. · 2025 · Kidney Research and Clinical Practice
Background: Immunoglobulin A nephropathy (IgAN) is a major cause of end-stage kidney disease (ESKD). The International IgA Nephropathy Prediction Tool (IIgAN-PT) predicts IgAN prognosis, but improvement in the prediction performance using…
View details →