Negative / Null Result Report
Chris M. Smith-Martin, Steven Jansen, Timothy J. Brodribb et al. · 2022 · Frontiers in Forests and Global Change
One of the most prominent changes in neotropical forests has been the increase in abundance and size of lianas. Studies suggest that lianas have more acquisitive strategies than trees, which could allow them to take advantage of water more…
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Lina Caballero-Villalobos, Francisco Fajardo-Gutiérrez, Mariasole Calbi et al. · 2021 · Frontiers in Ecology and Evolution
It is predicted that climate change will strongly affect plant distributions in high elevation “sky islands” of tropical Andes. Polylepis forests are a dominant element of the treeline throughout the Andes Cordillera in South America.…
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Margarida Arrobas, João V. Decker, Bruna L. Feix et al. · 2021 · Soil Use and Management
Abstract Soil conditioners, such as biochar and zeolites, may play an important role in agriculture if they increase nutrient use efficiency, in particular, that of phosphorus (P), due to the depletion of phosphate rocks from which…
View details →Negative / Null Result ReportOpen accessPsychology
Emily P. Taylor, Rachel Couper, Carolyn Maeve Butler · 2017 · Psychology and Psychotherapy Theory Research and Practice
OBJECTIVES: Perfectionism is recognized as a significant risk factor for psychopathology. Emerging research links attachment to perfectionism in adult and college-age samples. The Frost Multidimensional Perfectionism Scale (FMPS) has been…
View details →Negative / Null Result ReportOpen accessImmunology and Microbiology
Amy Robinson, Matthew Burgess, Sheila Webb et al. · 2022 · Cancers
There is a growing body of evidence that cancer causes systemic changes. These influences are most evident in the bone marrow and the blood, particularly in the myeloid compartment. Here, we show that there is an increase in the number of bone marrow, circulating and splenic monocytes by using mouse models of breast cancer caused by the mammary epithelial expression of the polyoma middle T antigen. Cancer does not affect ratios of classical to non-classical populations of monocytes in the circulation nor does it affect their half-lives. Single cell RNA sequencing also indicates that cancer doe
View details →Negative / Null Result ReportNeuroscience
Alessandra S. Souza, Theresa Thaler, Heinrich R. Liesefeld et al. · 2020 · Journal of Experimental Psychology Human Perception & Performance
Emotion is assumed to change how people process information by modulating attentional focus. Two recent studies (Spachtholz et al., 2014; Xie & Zhang, 2016) reported that self-reported negative emotion boosted the precision with which…
View details →Failed Experiment ReportPsychology
Lebena Varghese, Lisa M. Finkelstein · 2020 · Annals of the New York Academy of Sciences
Our current research investigated how mentors enhance protégé self-efficacy. Drawing from social comparison theory, we propose that the shared experience between mentors and protégés facilitates the ability of protégés to adopt the…
View details →Failed Experiment ReportOpen accessMedicine
Carmine Zoccali, Francesca Mallamaci, Luca De Nicola et al. · 2023 · Clinical Kidney Journal
Resistant hypertension (RH) is linked to an increased risk of cardiovascular and renal complications. Treatment options include non-pharmacological interventions, such as lifestyle modifications, and the use of specific antihypertensive…
View details →Negative / Null Result ReportOpen accessPsychology
Hubertus Himmerich, Jörg-Egbert Wolf, Peter Zimmermann et al. · 2016 · Chinese Medical Journal
To the Editor: With great interest we read the original article of Chen et al.[1] published in the Chinese Medical Journal comparing serum concentrations of cytokines in patients of Han and Li ethnicity with posttraumatic stress disorder…
View details →Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology
José M. Eltit, Clara Franzini‐Armstrong, Claudio F. Pérez · 2014 · Journal of Biological Chemistry
The β1a subunit is a cytoplasmic component of the dihydropyridine receptor (DHPR) complex that plays an essential role in skeletal muscle excitation-contraction (EC) coupling. Here we investigate the role of the C-terminal end of this auxiliary subunit in the functional and structural communication between the DHPR and the Ca2+ release channel (RyR1). Progressive truncation of the β1a C terminus showed that deletion of amino acid residues Gln489 to Trp503 resulted in a loss of depolarization-induced Ca2+ release, a severe reduction of L-type Ca2+ currents, and a lack of tetrad formation as eva
View details →Negative / Null Result ReportOpen accessMedicine
Mark B. Stoddard, Hui Li, Shuyi Wang et al. · 2015 · mBio
UNLABELLED: Hepatitis C virus (HCV) infection is characterized by persistent replication of a complex mixture of viruses termed a "quasispecies." Transmission is generally associated with a stringent population bottleneck characterized by infection by limited numbers of "transmitted/founder" (T/F) viruses. Characterization of T/F genomes of human immunodeficiency virus type 1 (HIV-1) has been integral to studies of transmission, immunopathogenesis, and vaccine development. Here, we describe the identification of complete T/F genomes of HCV by single-genome sequencing of plasma viral RNA from a
View details →Negative / Null Result ReportOpen accessMedicine
Valentine Wanga, Charles S. Venuto, Gene D. Morse et al. · 2015 · Pharmacogenetics and Genomics
BACKGROUND: Tenofovir disoproxil fumarate (TDF) causes kidney toxicity in some patients. We carried out genomewide analyses to identify associations with plasma tenofovir clearance and change in creatinine clearance (CrCl) during the first…
View details →Negative / Null Result ReportOpen accessEconomics, Econometrics and Finance
Klaus Grobys · 2021 · International Review of Financial Analysis
Recent research shows that the vast majority of scientific studies published in leading finance journals fails scientific replication (Hou, Xue, and Zhang, 2020; Harvey, Liu, and Zhu; 2016). This study argues that p-hacking, publication pressure and the selection bias from leading finance journals are perhaps not the underlying root cause for this issue. This study shows that standard methodologies often used in finance research are inevitably sample-specific due to the very nature of financial markets. While the consensus of earlier research postulates a rejection of the time-honored Levy hyp
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Thomas Perneger, Angèle Gayet-Ageron · 2023 · JAMA
Importance Many randomized clinical trials yield statistically nonsignificant results. Such results are difficult to interpret within the dominant statistical framework. Objective To estimate the strength of evidence in favor of the null…
View details →Negative / Null Result ReportPsychology
Youjia Hua, Chengan Yuan, Kristin V. Monroe et al. · 2016 · Developmental Neurorehabilitation
OBJECTIVE: Reread-Adapt and Answer-Comprehend (RAAC) + Goal Setting intervention is a reading intervention that addresses both oral reading fluency (ORF) and reading comprehension while supporting persistence and motivation for learners…
View details →Failed Experiment ReportOpen accessMedicine
Gerrit Frommeyer, Peter Milberg, C. Clauss et al. · 2014 · EP Europace
AIM: The most recent European Society of Cardiology (ESC) update on atrial fibrillation has introduced vernakalant (VER) for pharmacological cardioversion of atrial fibrillation. The aim of the present study was to investigate the safety…
View details →Negative / Null Result ReportOpen accessNeuroscience
Brett Mercier, Dylan Wiwad, Paul K. Piff et al. · 2020 · Collabra Psychology
Does belief in free will increase support for economic inequality? Five studies using diverse measures and methods tested this question. Study 1 finds belief in free will is associated with increased support for inequality. Study 2 manipulates belief in free will and does not find evidence that this changes support for inequality. Studies 3 and 4 find that people are more willing to support inequality in a hypothetical universe where free will exists compared to one where it does not (dz = 0.10–0.13), indicating that people believe the existence of free will justifies inequality. However, a be
View details →Negative / Null Result ReportOpen accessNeuroscience
Barbara Schmidt, Luisa Keßler, Clay B. Holroyd et al. · 2019 · Psychophysiology
A recent study claims that participants wearing a bike helmet behave riskier in a computer-based risk task compared to control participants without a bike helmet. We hypothesized that wearing a bike helmet reduces cognitive control over risky behavior. To test our hypothesis, we recorded participants' EEG brain responses while they played a risk game developed in our laboratory. Previously, we found that, in this risk game, anxious participants showed greater levels of cognitive control as revealed by greater frontal midline theta power, which was associated with less risky decisions. Here, we
View details →Negative / Null Result ReportOpen accessPsychology
Ana R. Sepúlveda, Dimitra Anastasiadou, Yolanda de Pellegrin et al. · 2016 · Men and Masculinities
The aim of this study was to examine the factor structure of the Male Body Attitudes Scale (MBAS) among a sample of 212 adolescent males by conducting a confirmatory factor analysis. The data revealed that while muscularity and low body fat factors were appropriate for the male sample, the height factor was not supported. The composite MBAS-Spanish version (MBAS-S) and its two factors had high internal consistency and were not significantly related to the traditionally used measure of body image (Eating Disorder Inventory–Body Dissatisfaction [BD]), confirming that this subscale only appears t
View details →Negative / Null Result ReportOpen accessPharmacology, Toxicology and Pharmaceutics
Michael Schütt, Konstantinos Stamatopoulos, Hannah Batchelor et al. · 2022 · European Journal of Pharmaceutical Sciences
The performance of colon-targeted solid dosage forms is commonly assessed using standardised pharmacopeial dissolution apparatuses like the USP II or the miniaturised replica, the mini-USP II. However, these fail to replicate the hydrodynamics and shear stresses in the colonic environment, which is crucial for the tablet's drug release process. In this work, computer simulations are used to create a digital twin of a dissolution apparatus and to develop a method to create a digital twin of a tablet that behaves realistically. These models are used to investigate the drug release profiles and s
View details →Negative / Null Result ReportComputer Science
Akhil Arora, Mayank Sachan, Arnab Bhattacharya · 2014
The steady growth of graph data in various applications has resulted in wide-spread research in finding significant sub-structures in a graph. In this paper, we address the problem of finding statistically significant connected subgraphs…
View details →Negative / Null Result ReportMedicine
Jinling Li, Carol J. Cardona · 2010 · Avian Diseases
Mutations in a wild duck isolate of avian influenza virus were detected in isolates shed by chickens within 1 day after inoculation. The newly adapted virus was transmitted to naïve chickens in direct contact and sharing food and water.…
View details →Negative / Null Result ReportOpen accessPsychology
Larissa Forni dos Santos, Sônia Regina Loureiro, José Alexandre S. Crippa et al. · 2013 · PLoS ONE
Social Anxiety Disorder (SAD) is prevalent and rarely diagnosed due to the difficulty in recognizing its symptoms as belonging to a disorder. Therefore, the evaluation/screening scales are of great importance for its detection, with the most used being the Liebowitz Social Anxiety Scale (LSAS). Thus, this study proposed to evaluate the psychometric properties of internal consistency and convergent validity, as well as the confirmatory factorial analysis and reliability of the self-reported version of the LSAS (LSAS-SR), translated into Brazilian Portuguese, in a sample of the general populatio
View details →Negative / Null Result ReportOpen accessMathematics
Abigail Bradshaw, Dorothy Bishop, Zoe Woodhead · 2019 · Quarterly Journal of Experimental Psychology
A deficit in interhemispheric transfer has been proposed as a neuropsychological theory of dyslexia. Interactions between the hemispheres during word recognition can be studied using the visual half-field paradigm. The well-established…
View details →Negative / Null Result ReportOpen accessNeuroscience
Marcello Sartarelli · 2016 · PLoS ONE
Evidence showing that on average left-handed (L), who are 10% in a population, tend to earn less than others is solely based on survey data. This paper is the first to test the relationship between handedness and earnings experimentally and also to assess whether the mechanism underlying it is predominantly cognitive or psychological. Data on 432 undergraduate students show that L do not obtain significantly different payoffs, a proxy for earnings, in a stylised labour market with multiple principals and agents. Similarly, scores in the Cognitive Reflection Test are not significantly different
View details →Negative / Null Result ReportOpen accessMedicine
Lucy Brazil, Angela Swampillai, Ka Man Mak et al. · 2020 · Neuro-Oncology Advances
BACKGROUND: Effective treatment for patients at least 70 years with newly diagnosed glioblastoma remains challenging and alternatives to conventional cytotoxics are appealing. Autophagy inhibition has shown promising efficacy and safety in small studies of glioblastoma and other cancers. METHODS: We conducted a randomized phase II trial to compare radiotherapy with or without hydroxychloroquine (2:1 allocation). Patients aged at least 70 years with newly diagnosed high-grade glioma deemed suitable for short-course radiotherapy with an ECOG performance status of 0-1 were included. Radiotherapy
View details →Negative / Null Result ReportOpen accessMedicine
Lijun Lu, Youqing Deng, Renshi Xu · 2024 · Frontiers in Neurology
Amyotrophic lateral sclerosis (ALS) is a debilitating motor neurological disorder for which there is still no cure. The disease seriously jeopardizes the health and lifespan of adult populations. The authors extensively retrieved the current literature about clinical and experimental ALS treatments. Based on them, this review primarily focused on summarizing the current potential clinical usage and trialing therapeutics of ALS. Currently, the clinical ALS treatments have focused primarily on relieving symptoms to improve the quality of life yet. There are a number of therapeutic approaches suc
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Annelise Mennicke, Heather M. Bush, Candace J. Brancato et al. · 2021 · Journal of Family Violence
Abstract Youth who witness parental intimate partner violence (IPV) are at increased risk of teen dating violence (DV). This analysis of secondary data investigated whether a bystander intervention program, Green Dot, was effective at…
View details →Negative / Null Result ReportOpen accessMedicine
Gen Suzuki, Hideya Yamazaki, Norihiro Aibe et al. · 2019 · In Vivo
BACKGROUND/AIM: To evaluate the predictive factors in older patients with localized esophageal cancer treated with definitive radiotherapy. PATIENTS AND METHODS: We retrospectively analyzed patients aged ≥75 years who were treated with…
View details →Negative / Null Result ReportOpen accessImmunology and Microbiology
Jose Ruiz, Saravana Kanagavelu, Claudia Flores et al. · 2016 · Frontiers in Cellular and Infection Microbiology
Recognition of Gram-negative bacteria by toll-like receptor (TLR)4 induces MyD88 and TRIF mediated responses. We have shown that TRIF-dependent responses play an important role in intestinal defense against Gram-negative enteropathogens. In the current study, we examined underlying mechanisms of how systemic TRIF activation enhances intestinal immune defense against Gram-negative bacteria. First we confirmed that the protective effect of poly I:C against enteric infection of mice with Yersinia enterocolitica was dependent on TLR3-mediated TRIF signaling by using TLR3-deficient mice. This prote
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