Negative / Null Result ReportComputer Science
Lu Yu, Jason Schwier, Ryan Craven et al. · 2013 · IEEE Transactions on Knowledge and Data Engineering
Hidden Markov models (HMMs) are used to analyze real-world problems. We consider an approach that constructs minimum entropy HMMs directly from a sequence of observations. If an insufficient amount of observation data is used to generate…
View details →Negative / Null Result ReportOpen accessPsychology
Bartosz Sobczyk, Paweł Dobrowolski, Maciek Skorko et al. · 2015 · Frontiers in Psychology
The impact of video game playing on cognitive abilities has been the focus of numerous studies over the last 10 years. Some cross-sectional comparisons indicate the cognitive advantages of video game players (VGPs) over non-players (NVGPs) and the benefits of video game trainings, while others fail to replicate these findings. Though there is an ongoing discussion over methodological practices and their impact on observable effects, some elementary issues, such as the representativeness of recruited VGP groups and lack of genre differentiation have not yet been widely addressed. In this articl
View details →Negative / Null Result ReportEnvironmental Science
Amber White, Michelle Nault, Katherine D. McMahon et al. · 2022 · Environmental Science & Technology
Laboratory studies used to assess the environmental fate of organic chemicals such as pesticides fail to replicate environmental conditions, resulting in large errors in predicted transformation rates. We combine laboratory and field data…
View details →Negative / Null Result ReportOpen accessPsychology
Nori Jacoby, Merav Ahissar · 2015 · Journal of Vision
In the 1980s to 1990s, studies of perceptual learning focused on the specificity of training to basic visual attributes such as retinal position and orientation. These studies were considered scientifically innovative since they suggested…
View details →Negative / Null Result ReportMedicine
Ryan G. Overmayer, Matthew Driller · 2017 · International Journal of Sports Physiology and Performance
PURPOSE: To examine the efficacy of intermittent sequential pneumatic compression (ISPC) on exercise recovery and subsequent performance, when implemented between a 20-min cycling bout (simulated scratch race) and a 4-min cycling test…
View details →Negative / Null Result ReportOpen accessMedicine
Kana Yoshioka, Akira Miyauchi, Mitsuhiro Fukushima et al. · 2016 · World Journal of Surgery
BACKGROUND: We reported phonatory recovery in the majority of 88 patients after recurrent laryngeal nerve (RLN) reconstruction. Here we analyzed factors that might influence the recovery, in a larger patient series. METHODS: At Kuma Hospital, 449 patients (354 females and 95 males) underwent RLN reconstruction with direct anastomosis, ansa cervicalis-to-RLN anastomosis, free nerve grafting, or vagus-to-RLN anastomosis; 47.4 % had vocal cord paralysis (VCP) preoperatively. Maximum phonation time (MPT) and mean airflow rate during phonation (MFR) were measured 1 year post surgery. Forty patients
View details →Negative / Null Result ReportOpen accessMedicine
Meghan A. Baker, Bethany Baer, Martin Kulldorff et al. · 2019 · PLoS Medicine
BACKGROUND: Kawasaki disease is an acute vasculitis that primarily affects children younger than 5 years of age. Its etiology is unknown. The United States Vaccine Safety Datalink conducted postlicensure safety surveillance for 13-valent pneumococcal conjugate vaccine (PCV13), comparing the risk of Kawasaki disease within 28 days of PCV13 vaccination with the historical risk after 7-valent PCV (PCV7) vaccination and using chart-validation. A relative risk (RR) of 2.38 (95% CI 0.92-6.38) was found. Concurrently, the Food and Drug Administration (FDA) conducted a postlicensure safety review that
View details →Negative / Null Result ReportOpen accessPsychology
Leon Y. Xiao, Tullia C. Fraser, Philip Newall · 2022 · Journal of Gambling Studies
Loot boxes are quasi-gambling virtual products in video games that provide randomised rewards of varying value. Previous studies in Western contexts have identified a positive correlation between loot box purchasing and problem gambling severity. A preregistered survey of People's Republic of China (PRC) video game players (N = 879) failed to replicate this correlation. We observed statistically significant but weak positive correlations between loot box expenditure and past-year gambling participation, and between loot box expenditure and impulsiveness. This study cannot prove that loot boxes
View details →Negative / Null Result ReportOpen accessPsychology
Basil Wahn, Artur Czeszumski, Peter König · 2018 · PLoS ONE
When humans perform tasks together, they may reach a higher performance in comparison to the best member of a group (i.e., a collective benefit). Earlier research showed that interindividual performance similarities predict collective benefits for several joint tasks. Yet, researchers did not test whether this is the case for joint visuospatial tasks. Also, researchers did not investigate whether dyads and triads reach a collective benefit when they are forbidden to exchange any information while performing a visuospatial task. In this study, participants performed a joint visual search task e
View details →Negative / Null Result ReportOpen accessNeuroscience
Annelies Spek, Evert Scholte, Ina A. van Berckelaer‐Onnes · 2010 · Journal of Autism and Developmental Disorders
Local information processing in 42 adults with high functioning autism, 41 adults with Asperger syndrome and 41 neurotypical adults was examined. Contrary to our expectations, the disorder groups did not outperform the neurotypical group…
View details →Negative / Null Result ReportOpen accessPsychology
Hilmar Zech, Philip A. Gable, W. van Dijk et al. · 2022 · Behavior Research Methods
The approach-avoidance task (AAT) is an implicit task that measures people's behavioral tendencies to approach or avoid stimuli in the environment. In recent years, it has been used successfully to help explain a variety of health problems (e.g., addictions and phobias). Unfortunately, more recent AAT studies have failed to replicate earlier promising findings. One explanation for these replication failures could be that the AAT does not reliably measure approach-avoidance tendencies. Here, we first review existing literature on the reliability of various versions of the AAT. Next, we examine
View details →Negative / Null Result ReportOpen accessMedicine
Dae-Sang Lee, Mi Yeon Lee, Chi-Min Park et al. · 2018 · PLoS ONE
Delirium is a common complication of vascular surgery. The protective effect of preoperative statins on delirium after vascular surgery is controversial. The authors hypothesized that preoperative statin administration would decrease the incidence of delirium after vascular surgery. From May 2010 to May 2015, 1,132 patients underwent vascular surgery. Postoperative delirium was diagnosed from patients' medical records. The incidence of delirium was 11.5%. The preoperative statin exposure was not associated with reduced delirium in the univariate analysis. After adjusting for covariates, preope
View details →Negative / Null Result ReportOpen accessArts and Humanities
Masoud Khalili Sabet, Abdorreza Tahriri, Parastou Gholami Pasand · 2013 · Theory and Practice in Language Studies
This paper aimed to examine the impact of peer scaffolding through process approach on writing fluency of EFL learners. To this end, a Nelson Proficiency Test was administered to 49 EFL learners studying at University of Guilan, based on…
View details →Negative / Null Result ReportOpen accessPsychology
Michael R. McCart, Jason E. Chapman, Kristyn Zajac et al. · 2020 · Journal of Consulting and Clinical Psychology
OBJECTIVE: The first randomized controlled trial of psychological first aid (PFA) was conducted, using crime victims as participants. For study Aim 1, investigators tested whether paraprofessional victim advocates could be trained to…
View details →Negative / Null Result ReportOpen accessMedicine
Boris Blechacz, Gregory J. Gores · 2010 · Hepatology
A 66-year-old male patient who is hepatitis C RNA–positive without cirrhosis has been found to have a mass on ultrasound examination of the liver. The physical examination is unremarkable. The hemoglobin, white cell count, and platelet…
View details →Negative / Null Result ReportOpen accessMedicine
Phyllis Chan, Xiaofei Zhou, Nina Wang et al. · 2020 · CPT Pharmacometrics & Systems Pharmacology
Machine learning (ML) was used to leverage tumor growth inhibition (TGI) metrics to characterize the relationship with overall survival (OS) as a novel approach and to compare with traditional TGI-OS modeling methods. Historical dataset…
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Jacob Guinot, Sandra Miralles, Alma Rodríguez-Sánchez et al. · 2020 · Employee Relations: The International Journal
Purpose Based on a new management paradigm rooted on care and compassion, this study explores the consequences of compassion at work on organizational learning and firm performance. Design/methodology/approach Structural equation modeling…
View details →Negative / Null Result ReportOpen accessEnvironmental Science
Kate M. Quigley, Magena R. Marzonie, Blake D. Ramsby et al. · 2021 · Frontiers in Marine Science
Novel restoration methods are currently under consideration worldwide to help coral reefs recover or become more resilient to higher temperature stress. Critical field-based information concerning the paradigm of “local is best” is lacking for many methods; information which is essential to determine the risk and feasibility associated with restoration. One method involves breeding corals from different reef regions with expected variation in heat tolerance and moving those offspring to new locations to enhance offspring survival; thereby augmenting local stock to enhance survival for anticipa
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Jaeseok Bae, Jungjae Park, Heulbi Ahn et al. · 2021 · Optics Express
In this study, an optical method that allows simultaneous thickness measurements of two different layers distributed over a broad thickness range from several tens of nanometers to a few millimeters based on the integration of a…
View details →Negative / Null Result ReportPsychology
Frenette Southwood · 2012 · Journal of Child Language
The aims of the study were to establish whether there is a correlation between the socioeconomic background of Afrikaans-speaking children and their performance on a dialect-neutral language test, and to ascertain whether the allowance the…
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Markus Orsi, Jean-Louis Reymond · 2024 · Journal of Cheminformatics
Abstract Molecular fingerprints are indispensable tools in cheminformatics. However, stereochemistry is generally not considered, which is problematic for large molecules which are almost all chiral. Herein we report MAP4C, a chiral…
View details →Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology
Jin‐Yi Wan, Chong‐Zhi Wang, Qi‐Hui Zhang et al. · 2016 · Biomedical Chromatography
Abstract After ingestion of ginseng, the bioavailability of its parent compounds is low and enteric microbiota plays an important role in parent compound biotransformation to their metabolites. Diet type can influence the enteric…
View details →Negative / Null Result ReportOpen accessImmunology and Microbiology
Makoto Miyara, Driss Chader, Aude Burlion et al. · 2016 · Oncotarget
// Makoto Miyara 1,2 , Driss Chader 1,2 , Aude Burlion 2 , Jérémie Goldstein 2 , Delphine Sterlin 1,2 , Françoise Norol 3 , Hélène Trebeden-Nègre 3 , Laetitia Claër 1,2 , Shimon Sakaguchi 4,* , Gilles Marodon 2,* , Zahir Amoura 1,2,5,6,* and Guy Gorochov 1,2,6 1 Department of immunology, AP-HP Pitié Salpêtrière, Paris, France 2 Sorbonne Universités, UPMC Univ Paris 06, INSERM, CNRS, Centre d’Immunologie et des Maladies Infectieuses (CIMI-Paris), Paris, France 3 Cell Therapy, AP-HP Pitié Salpêtriè
View details →Negative / Null Result ReportOpen accessMedicine
James D. Chalmers · 2017 · COPD Journal of Chronic Obstructive Pulmonary Disease
Bronchiectasis is a long-neglected disease currently experiencing a surge in interest. It is a highly complex condition with numerous aetiologies, co-morbidities and a heterogeneous disease presentation and clinical course. The past few…
View details →Negative / Null Result ReportOpen accessMedicine
Fortunato Giustra, Francesco Bosco, Giorgio Cacciola et al. · 2022 · Journal of Clinical Medicine
In the last decades, several surgical techniques, such as medial pivot (MP) philosophy and kinematic alignment (KA), have been introduced in total knee arthroplasty (TKA) to improve patients’ outcomes. This retrospective study aims to evaluate the clinical, radiographic, and functional results of PCL preservation or sacrifice in KA MP-TKA. A consecutive series of 147 patients older than 60, with a minimum follow-up of two years, were treated with TKA for severe primary knee osteoarthritis (OA) at the Department of Orthopedics and Traumatology between 1 January 2019, and 1 July 2020. After excl
View details →Negative / Null Result ReportOpen accessMedicine
Hyun Woo Jeon, Young‐Du Kim, Sung Bo Sim et al. · 2021 · Thoracic Cancer
BACKGROUND: Patients with early lung cancer are the best candidates for surgical resection. However, those patients with high grade patterns (micropapillary or solid) do not have a good prognosis, even if they have been diagnosed with…
View details →Negative / Null Result ReportOpen accessPharmacology, Toxicology and Pharmaceutics
Laura Blackmore, William Bernal · 2015 · Clinical Medicine
Acute liver failure (ALF) is a rare critical illness with high mortality whose successful management requires early recognition and effective initial management. Though it may result from a wide variety of causes, in the UK and much of the…
View details →Negative / Null Result ReportOpen accessNeuroscience
Alba Di Pardo, Elena Ciaglia, Monica Cattaneo et al. · 2020 · Cell Death and Disease
Abstract The longevity-associated variant (LAV) of the bactericidal/permeability-increasing fold-containing family B member 4 (BPIFB4) has been found significantly enriched in long-living individuals. Neuroinflammation is a key player in Huntington’s disease (HD), a neurodegenerative disorder caused by neural death due to expanded CAG repeats encoding a long polyglutamine tract in the huntingtin protein (Htt). Herein, we showed that striatal-derived cell lines with expanded Htt (STHdh Q 111/111 ) expressed and secreted lower levels of BPIFB4, when compared with Htt expressing cells (STHdh Q 7/
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Ronnie Detrich, Teri Lewis · 2012 · Journal of Positive Behavior Interventions
It has been 10 years since No Child Left Behind (NCLB), with its emphasis on scientifically based instruction as a means for improving the educational outcomes of students, was signed into law. In this article, we review the basic tenets…
View details →Negative / Null Result ReportMedicine
Cynthia Ciwei Lim, Chieh Suai Tan, Manish Kaushik et al. · 2014 · Nephrology
AIM: Optimal timing for acute renal replacement therapy (ARRT) initiation in critically ill patients with acute kidney injury (AKI) is unclear. We aimed to evaluate outcomes in patients who initiated ARRT for traditional indications versus…
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