Negative / Null Result Report
Jean C C Vila, Yang-Yu Liu, Alvaro Sanchez · 2020 · The ISME Journal
Abstract The taxonomic composition of microbial communities can vary substantially across habitats and within the same habitat over time. Efforts to build quantitative and predictive models of microbial population dynamics are underway,…
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Panagiotis Kerezoudis, Kathleen J Yost, Nicole M Tombers et al. · 2018 · Neurosurgery
Abstract BACKGROUND The diagnosis of vestibular schwannomas (VS) is associated with reduced patient quality of life (QOL). Minimal clinically important difference (MCID) was introduced as the lowest improvement in a patient-reported…
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Katherine D’Avignon, Michaël Kummert · 2015 · Journal of Thermal Science and Engineering Applications
To assess the potential of thermal energy storage systems using phase change materials (PCMs), numerical simulations rely on an enthalpy–temperature curve (or equivalent specific heat curve) to model the PCM thermal storage behavior. The…
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Jianjun Liu, Zhanqing Li · 2018 · Geophysical Research Letters
Abstract Aerosol optical quantities have been widely employed as the proxy variables of cloud condensation nuclei concentration to study aerosol indirect effects (AIE). Due to the aerosol swelling effect, cloud condensation nuclei and…
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Stacy D O’Connor, Anuj K Dalal, V Anik Sahni et al. · 2015 · Journal of the American Medical Informatics Association
Abstract Objective To assess whether integrating critical result management software—Alert Notification of Critical Results (ANCR)—with an electronic health record (EHR)-based results management application impacts closed-loop…
View details →Negative / Null Result ReportOpen accessMedicine
Wanlong Ma, Hagop M. Kantarjian, Ke Zhang et al. · 2010 · BMC Medical Genetics
BACKGROUND: Myelodysplastic syndrome (MDS) may be induced by certain mutagenic environmental or chemotherapeutic toxins; however, the role of susceptibility genes remains unclear. The G/G genotype of the single-nucleotide polymorphism (SNP) rs1617640 in the erythropoietin (EPO) promoter has been shown to be associated with decreased EPO expression. We examined the association of rs1617640 genotype with MDS. METHODS: We genotyped the EPO rS1617640 SNP in 189 patients with MDS, 257 with acute myeloid leukemia (AML), 106 with acute lymphoblastic leukemia, 97 with chronic lymphocytic leukemia, 353
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Kenneth Button · 2012 · Transportation Journal
Abstract The article examines the sustainability of the low-cost, or no-frills, airline business model. It looks at the background to the development of this managerial approach within the context of some prevailing business theories and…
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Tao Zhang, Dan Gieseler, Rainer Jordan · 2016 · Polymer Chemistry
The influence of ambient laboratory light from common fluorescent lamps on AGET, ARGET, and classical ATRP reactions was investigated and significant differences were found except for ARGET ATRP.
View details →Negative / Null Result ReportOpen accessMedicine
Nouf Abdullah Alharbi · 2026 · Frontiers in Nutrition
Polyphenols, plant-derived bioactive compounds, are known for their antioxidant, anti-inflammatory, and antimicrobial properties, benefiting plant-based foods. Fermentation, driven by microbial enzymes like glycosidases, esterases, and decarboxylases, alters the chemical structure of polyphenols, enhancing their bioavailability and bioactivity. This review explores the transformation of polyphenols, particularly flavonoids and phenolic acids, during fermentation, resulting in bioactive metabolites with increased solubility, stability, and antioxidant activity, improving gastrointestinal absorp
View details →Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology
Araiz Hussain · 2025 · Cardiovascular Diabetology – Endocrinology Reports
Chronic hyperglycemia is the defining feature of type 2 diabetes mellitus (T2DM) and a central driver of its long-term complications, including microvascular and macrovascular diseases. Among these, cardiovascular disease (CVD) remains the leading cause of morbidity and mortality in individuals with T2DM. Persistent glucose elevation activates multiple interrelated biochemical pathways, including the polyol pathway, formation of advanced glycation end-products, protein kinase C activation, oxidative stress via several cellular mechanisms, as well as the hexosamine biosynthetic pathway. These p
View details →Negative / Null Result ReportOpen accessNursing
Ivana Djuričić, Philip C. Calder · 2025 · Current Atherosclerosis Reports
PURPOSE OF REVIEW: We synthesize the latest evidence (published 2020 to 2025) on the role of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in cardiovascular health, emphasizing biological mechanisms and key findings from observational studies and clinical trials related to cardiovascular disease (CVD) risk and outcomes. RECENT FINDINGS: EPA and DHA modulate lipid metabolism, inflammation, platelet and endothelial function, the gut-heart axis, ion channels and autonomic function via vagal tone, supporting cardiovascular health. While individual RCTs have produced variable results,
View details →Negative / Null Result ReportOpen accessMedicine
Wan-Ling Luo, Qing-Bo Wang, Yu-Kai Li et al. · 2025 · Journal of Hepatocellular Carcinoma
Purpose: This study aimed to evaluate the impact of middle hepatic vein (MHV) resection during hemihepatectomy on short-term surgical outcomes and long-term prognosis in patients with hepatocellular carcinoma (HCC). Patients and Methods:…
View details →Negative / Null Result ReportOpen accessMathematics
Fırat Soylu, David Raymond, Arianna Gutierrez et al. · 2018 · Journal of Numerical Cognition
The impact of fingers on numerical cognition has received a great deal of attention recently. One sub-set of these studies focus on the relation between finger gnosis (also called finger sense or finger gnosia), the ability to identify and individuate fingers, and mathematical development. Studies in this subdomain have reported mixed findings so far. While some studies reported that finger gnosis correlates with or predicts mathematics abilities in younger children, others failed to replicate these results. The current study explores the relationship between finger gnosis and two arithmetic o
View details →Negative / Null Result ReportOpen accessMedicine
Majid Afshar, Mary Ryan, Felice Resnik et al. · 2025 · NEJM AI
BACKGROUND: Electronic health record (EHR) documentation is a major contributor to work-related practitioner exhaustion and the interpersonal disengagement known as burnout. Generative artificial intelligence (AI) scribes that passively…
View details →Negative / Null Result ReportOpen accessMedicine
Hüseyin Alperen Yıldız, Emrullah Söğütdelen · 2025 · Journal of Medical Systems
BACKGROUND: Artificial intelligence (AI) chatbots are increasingly used for medical inquiries, including sensitive topics like sexually transmitted diseases (STDs). However, concerns remain regarding the reliability and readability of the information they provide. This study aimed to assess the reliability and readability of AI chatbots in providing information on STDs. The key objectives were to determine (1) the reliability of STD-related information provided by AI chatbots, and (2) whether the readability of this information meets the recommended standarts for patient education materials. M
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Marin L. Moravec, Georg F. Striedter, Nancy T. Burley · 2010 · Ethology
Abstract Parrots comprise one of the several taxa in which life‐long learning of new vocal signals used in intraspecific communication is known to occur routinely. The functions and evolutionary bases of this ability are largely unknown.…
View details →Negative / Null Result ReportOpen accessMedicine
Kaye M. Reid–Lombardo, Brooke L. Fridley, William R. Bamlet et al. · 2011 · Cancer Epidemiology Biomarkers & Prevention
BACKGROUND: Recent reports support an association between chronic inflammation and progression to pancreatic cancer (PC). METHODS: This case-control, candidate gene association study evaluated 1,354 Caucasian patients with pancreatic…
View details →Negative / Null Result ReportSocial Sciences
Odis Johnson · 2012 · Review of Educational Research
Since 1976, the U.S. Department of Housing and Urban Development (HUD) has relocated low-income children of color from public housing communities to less racially and economically isolated neighborhoods in an effort to improve their…
View details →Negative / Null Result ReportEconomics, Econometrics and Finance
Fumitaka Furuoka · 2016 · Applied Economics Letters
This article proposes a new unit root test to analyse unemployment hysteresis. The test is able to incorporate cross-sectional dependence, unattended nonlinearity and unknown structural breaks in the time-series data. This study used data…
View details →Negative / Null Result ReportOpen accessMedicine
Brahim Aı̈ssani, Kui Zhang, Howard W. Wiener · 2015 · Frontiers in Genetics
We evaluated the association of 56 candidate SNPs identified in two published genome-wide association studies (GWAS) of uterine leiomyoma (UL), or fibroids, with the risk and tumor size in the multi-ethnic uterine fibroid study (NIEHS-UFS). The selected SNPs were genotyped in 916 premenopausal women of African American (AA) and European American (EA) descents and their association with the outcomes was evaluated in race-stratified models and in meta-analysis of risk in NIEHS-UFS and discovery and replication GWAS in the Japanese population. We report moderate associations of variant rs4954368
View details →Negative / Null Result ReportPsychology
John G. McCabe, Daniel A. Krauss · 2011 · Behavioral Sciences & the Law
An intervention designed to correct affective and cognitive biases was tested in the context of a civil commitment hearing of a sexually violent predator. Potential differences between a college student mock jury sample and a more…
View details →Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology
Anna L. Guyatt, Kimberley Burrows, Philip A. I. Guthrie et al. · 2017 · Mitochondrion
The mitochondrial genome is present at variable copy number between individuals. Mitochondria are vulnerable to oxidative stress, and their dysfunction may be associated with cardiovascular disease. The association of mitochondrial DNA copy number with cardiometabolic risk factors (lipids, glycaemic traits, inflammatory markers, anthropometry and blood pressure) was assessed in two independent cohorts of European origin women, one in whom outcomes were measured at mean (SD) age 30 (4.3) years (N=2278) and the second at 69.4 (5.5) years (N=2872). Mitochondrial DNA copy number was assayed by qua
View details →Negative / Null Result ReportOpen accessPsychology
Lisanne S. Pauw, Hayley Medland, Sarah J. Paling et al. · 2022 · Affective Science
Abstract While emotion regulation often happens in the presence of others, little is known about how social context shapes regulatory efforts and outcomes. One key element of the social context is social support. In two experience sampling studies ( N s = 179 and 123), we examined how the use and affective consequences of two fundamentally social emotion-regulation strategies—social sharing and expressive suppression—vary as a function of perceived social support. Across both studies, we found evidence that social support was associated with variation in people’s use of these strategies, such
View details →Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology
Anarkali Mahmood, Zdeněk Otruba, Alan W. Weisgerber et al. · 2023 · Biophysical Journal
When multivesicular endosomes (MVEs) fuse with the plasma membrane, exosomes are released into the extracellular space where they can affect other cells. The ability of exosomes to regulate cells nearby or further away depends on whether…
View details →Negative / Null Result ReportOpen accessEngineering
Michael Schütt, Connor O’Farrell, Konstantinos Stamatopoulos et al. · 2022 · Pharmaceutics
The performance of solid oral dosage forms targeting the colon is typically evaluated using standardised pharmacopeial dissolution apparatuses. However, these fail to replicate colonic hydrodynamics. This study develops a digital twin of the Dynamic Colon Model; a physiologically representative in vitro model of the human proximal colon. Magnetic resonance imaging of the Dynamic Colon Model verified that the digital twin robustly replicated flow patterns under different physiological conditions (media viscosity, volume, and peristaltic wave speed). During local contractile activity, antegrade
View details →Negative / Null Result ReportOpen accessEnvironmental Science
Rouven Doran, Daniel Hanss, Torvald Øgaard · 2017 · Sustainability
Two online experiments explored the effects of social comparison feedback on indicators of eco-friendly travel choices. It was tested whether the chosen indicators are sensitive to the information conveyed, and if this varies as a function of in-group identification. Study 1 (N = 134) focused on unfavourable feedback (i.e., being told that one has a larger ecological footprint than the average member of a reference group). People who received unfavourable feedback reported stronger intentions to choose eco-friendly travel options than those who received nondiscrepant feedback, when in-group id
View details →Negative / Null Result ReportOpen accessPsychology
Eike Kofi Buabang, Yannick Boddez, Oliver T. Wolf et al. · 2022 · Behavioral Neuroscience
People are more likely to engage in various suboptimal behaviors such as overeating, addictive behaviors, and short-sighted financial decision-making when they are under stress. Traditional dual-process models propose that stress can…
View details →Negative / Null Result ReportOpen accessMedicine
Helena Canhão, Ana Maria Rodrigues, María José Santos et al. · 2015 · BioMed Research International
BACKGROUND: The aim of our work was to replicate, in a Southern European population, the association reported in Northern populations between PTPRC locus and response to anti-tumor necrosis factor (anti-TNF) treatment in rheumatoid arthritis (RA). We also looked at associations between five RA risk alleles and treatment response. METHODS: We evaluated associations between anti-TNF treatment responses assessed by DAS28 change and by EULAR response at six months in 383 Portuguese patients. Univariate and multivariate linear and logistic regression analyses were performed. In a second step to con
View details →Negative / Null Result ReportOpen accessSocial Sciences
Jeni L. Burnette, Crystal L. Hoyt, Nicholas R. Buttrick et al. · 2021 · International Journal of Psychology
Communications about the Coronavirus Disease 2019 (COVID-19) often employ metaphors, which can help people understand complex issues. For example, public health messages may focus on "fighting" the disease, attempting to rouse people to…
View details →Negative / Null Result ReportMathematics
Kevin D. Floate, Paul C. Coghlin · 2010 · The Canadian Entomologist
Abstract Fluctuating asymmetries (FAs) are small random deviations between left- and right-side measurements of normally symmetrical traits in a given organism. Changes in FA have frequently been proposed as biomarkers for organisms…
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