345,465 results match your criteria pattern study


EMG based classification for pick and place task.

Biomed Phys Eng Express 2021 Apr 21. Epub 2021 Apr 21.

Dept. of Electronics Engineering, Aligarh Muslim University, ZH College of Engineering & Technology, Aligarh, UP, 202002, INDIA.

The hand amputee is deprived of number of activities of daily living. To help the hand amputee, it is important to learn the pattern of muscles activity. There are several elements of tasks, which involve forearm along with the wrist and hand. Read More

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The repeated Montreal Imaging Stress Test (rMIST): Testing habituation, sensitization, and anticipation effects to repeated stress induction.

Psychoneuroendocrinology 2021 Apr 17;128:105217. Epub 2021 Apr 17.

Department of Neurosciences, Research group Psychiatry, Center for Contextual Psychiatry, KU Leuven, Kapucijnenvoer 35, 3000 Leuven, Belgium.

Background: A psychosocial task that can induce comparable levels of stress repeatedly is fundamental to effectively study changes in stress reactivity over time or as a result of an intervention. However, existing tasks have struggled to provide consistent stress responses across repeated trials.

Aim: The goal was to assess the efficacy of two different designs of the repeated Montreal Imaging Stress Test (rMIST) in reproducing the same pattern of reactivity over two separate sessions. Read More

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Identification and expression analysis of group II C-type lectin domain containing receptors in grass carp Ctenopharyngodon idella.

Gene 2021 Apr 18:145668. Epub 2021 Apr 18.

Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; International Research Center for Marine Biosciences at Shanghai Ocean University, Ministry of Science and Technology, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China. Electronic address:

Group II C-type lectin domain (CTLD) containing receptors belong to a large family of pattern recognition receptors which mainly act on the innate immunity. They are structurally related and consist of a cytoplasmic immunoreceptor tyrosine-based inhibitory motif (ITIM) and a single extracellular CTLD. Although they have been described in teleost fish, their involvement in immune responses is not well understood. Read More

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Auditory cues facilitate object movement processing in human extrastriate visual cortex during simulated self-motion: A pilot study.

Brain Res 2021 Apr 18:147489. Epub 2021 Apr 18.

Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, USA; Department of Radiology, Harvard Medical School, Boston, MA, USA. Electronic address:

Visual segregation of moving objects is a considerable computational challenge when the observer moves through space. Recent psychophysical studies suggest that directionally congruent, moving auditory cues can substantially improve parsing object motion in such settings, but the exact brain mechanisms and visual processing stages that mediate these effects are still incompletely known. Here, we utilized multivariate pattern analyses (MVPA) of MRI-informed magnetoencephalography (MEG) source estimates to examine how crossmodal auditory cues facilitate motion detection during the observer's self-motion. Read More

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Differentiation between endometriosis-associated ovarian cancers and non- endometriosis-associated ovarian cancers based on magnetic resonance imaging.

Br J Radiol 2021 Apr 21:20201441. Epub 2021 Apr 21.

Department of Radiology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.

Objectives: Endometriosis-associated ovarian cancer (EAOC) patients show different clinical characteristics compared with non-EAOC patients. However, a few studies are focused on the imaging characteristics of EAOC until now. We assessed MRI characteristics in differentiating EAOC and non-EAOC. Read More

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Patch test results in patients with suspected contact allergy to shoes - retrospective IVDK data analysis 2009-2018.

Contact Dermatitis 2021 Apr 21. Epub 2021 Apr 21.

Information Network of Departments of Dermatology, University Medical Centre Göttingen, Göttingen, Germany.

Background: Allergic contact dermatitis caused by shoes is common and new relevant allergens have been identified.

Objectives: To investigate the pattern of type IV sensitization in patients with suspected allergic contact dermatitis of the feet related to shoes as presumed culprit trigger.

Methods: Retrospective analysis of data of the Information Network of Departments of Dermatology (IVDK), 2009-2018. Read More

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Artificial intelligence based writer identification generates new evidence for the unknown scribes of the Dead Sea Scrolls exemplified by the Great Isaiah Scroll (1QIsaa).

PLoS One 2021 21;16(4):e0249769. Epub 2021 Apr 21.

Department of Artificial Intelligence, Faculty of Science and Engineering, University of Groningen, Groningen, The Netherlands.

The Dead Sea Scrolls are tangible evidence of the Bible's ancient scribal culture. This study takes an innovative approach to palaeography-the study of ancient handwriting-as a new entry point to access this scribal culture. One of the problems of palaeography is to determine writer identity or difference when the writing style is near uniform. Read More

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A Reinforcement Learning-Based Vehicle Platoon Control Strategy for Reducing Energy Consumption in Traffic Oscillations.

IEEE Trans Neural Netw Learn Syst 2021 Apr 21;PP. Epub 2021 Apr 21.

The vehicle platoon will be the most dominant driving mode on future roads. To the best of our knowledge, few reinforcement learning (RL) algorithms have been applied in vehicle platoon control, which has large-scale action and state spaces. Some RL-based methods were applied to solve single-agent problems. Read More

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Metabolic patterns in Septoria canker resistant and susceptible Populus trichocarpa genotypes 24 hours post-inoculation.

Phytopathology 2021 Apr 21. Epub 2021 Apr 21.

2062 Cordely HallCorvallis, Oregon, United States, 97331;

Sphaerulina musiva is an economically and ecologically important fungal pathogen that causes Septoria stem canker and leaf spot disease of Populus species. To bridge the gap between genetic markers and structural barriers previously found to be linked to Septoria (Sphaerulina musiva) canker disease resistance in poplar, we employed hydrophilic interaction liquid chromatography (HILIC) and tandem mass spectrometry (MS/MS) to identify and quantify metabolites involved with signaling and cell wall re-modelling. Fluctuations in signaling molecules, organic acids, amino acids, sterols, phenolics, and saccharides in resistant and susceptible Populus trichocarpa inoculated with Sphaerulina musiva, were observed. Read More

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The relationship between the risk of eating disorder and meal patterns in University students.

Eat Weight Disord 2021 Apr 21. Epub 2021 Apr 21.

Department of Nutrition and Dietetics, Faculty of Health Sciences, Gazi University, Çankaya, Ankara, Turkey.

Purpose: This study was carried out to evaluate the relation between meal patterns and the risk of eating disorders in university students.

Methods: The study was conducted on a total of 331 volunteer students with a mean age of 22.08 ± 1. Read More

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Screening and Purification of Natural Products from Actinomycetes that Induce a "Rounded" Morphological Phenotype in Fission Yeast.

Nat Prod Bioprospect 2021 Apr 21. Epub 2021 Apr 21.

Demuris Ltd, The Biosphere, Draymans Way, Newcastle Helix, Newcastle upon Tyne, NE4 5BX, UK.

This study was designed to identify and investigate bioactive natural product compounds that alter the cellular shape of the fission yeast Schizosaccharomyces pombe and induce a "rounded" or "small" cellular morphological phenotype. Bioassays using a range of antifungal agents against a multidrug-sensitive fission yeast strain, SAK950 showed that many induced a "rounded" phenotype. We then investigated whether 46 of the actinomycete strains identified in our previous study as inducing a similar phenotype produced antifungal agents of similar classes. Read More

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Point-of-care ultrasound (PoCUS) in the early diagnosis of novel coronavirus 2019 disease (COVID-19) in a first-level emergency department during a SARS-CoV-2 outbreak in Italy: a real-life analysis.

Intern Emerg Med 2021 Apr 21. Epub 2021 Apr 21.

Emergency Department, Santa Maria Nuova Hospital, Middle-Tuscany Local Health Agency, Florence, Italy.

In December 2019, the severe acute respiratory syndrome coronavirus 2 (SARSCoV-2) spread worldwide, challenging emergency departments (EDs) with the need of rapid diagnosis for appropriate allocation in dedicated setting. Many authors highlighted the role of lung ultrasound (LUS) in management of the novel coronavirus disease 2019 (COVID-19). The study aims to analyze the performance of LUS in the early identification of COVID-19 patients in ED during a SARS-CoV-2 outbreak. Read More

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Auditory and visual short-term memory: influence of material type, contour, and musical expertise.

Psychol Res 2021 Apr 21. Epub 2021 Apr 21.

Lyon Neuroscience Research Center (CRNL), INSERM, U1028, CNRS, UMR 5292, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France.

Short-term memory has mostly been investigated with verbal or visuospatial stimuli and less so with other categories of stimuli. Moreover, the influence of sensory modality has been explored almost solely in the verbal domain. The present study compared visual and auditory short-term memory for different types of materials, aiming to understand whether sensory modality and material type can influence short-term memory performance. Read More

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The anconeus muscle revisited: double innervation pattern and its clinical implications.

Surg Radiol Anat 2021 Apr 21. Epub 2021 Apr 21.

Hospital Universitario 12 de Octubre, Madrid, Spain.

Purpose: The aim of the present study is to describe in detail the morphology and innervation pattern of the anconeus muscle, bearing in mind clinical implications such as iatrogenic injuries during surgical elbow approaches.

Methods: A cadaveric study was performed; 56 elbows from 28 formalin-fixed cadavers belonging to the Anatomy Department of Universidad Complutense of Madrid were dissected. The triceps-anconeus nerve was located and dissected. Read More

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Developmental transcriptomics reveals a gene network driving mimetic color variation in a bumble bee.

Genome Biol Evol 2021 Apr 20. Epub 2021 Apr 20.

Department of Biology, The Pennsylvania State University, University Park, PA, USA.

A major goal of evolutionary genetics and evo-devo is to understand how changes in genotype manifest as changes in phenotype. Bumble bees display remarkable color pattern diversity while converging onto numerous regional Müllerian mimicry patterns, thus enabling exploration of the genetic mechanisms underlying convergent phenotypic evolution. In western North America, multiple bumble bee species converge onto local mimicry patterns through parallel shifts of midabdominal segments from red to black. Read More

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Are patient-reported outcomes the same following second-side surgery in primary hip and knee arthroplasty?

Bone Jt Open 2021 Apr;2(4):243-254

Musgrave Park Hospital, Belfast, UK.

Aims: Up to one in five patients undergoing primary total hip (THA) and knee arthroplasty (TKA) require contralateral surgery. This is frequently performed as a staged procedure. This study aimed to determine if outcomes, as determined by the Oxford Hip Score (OHS) and Knee Score (OKS) differed following second-side surgery. Read More

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[Comparative assessment of functional outcomes of different endothelial keratoplasty techniques].

Vestn Oftalmol 2021 ;137(2):43-50

Lomonosov Moscow State University, Moscow, Russia.

Purpose: Comparative analysis of the higher-order aberrations (HOA) of the cornea after endothelial keratoplasty (EK) using DSAEK and DMEK techniques; evaluation of the correlation between higher-order corneal aberrations and functional outcomes of the treatment.

Material And Methods: The study included 47 patients (59 eyes). The main group consisted of 35 patients (35 eyes) with bullous keratopathy and Fuchs' endothelial dystrophy; among them, 19 patients underwent endothelial keratoplasty using the DSAEK technique and 16 - DMEK technique. Read More

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January 2021

[Results of optical coherence tomography angiography in choroidal melanoma].

Authors:
A S Stoyukhina

Vestn Oftalmol 2021 ;137(2):18-25

Research Institute of Eye Diseases, Moscow, Russia.

Blood supply is known to be required for tumor growth and metastasis, and the formation of the tumor's own vasculature plays a critical role in the development of solid neoplasms. The method of optical coherence tomography angiography (OCTA) is considered promising for the study of angioarchitectonics.

Purpose: To evaluate the OCTA signs of choroidal melanoma (CM) depending on its sizes. Read More

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January 2021

Fractal-inspired soft deployable structure: a theoretical study.

Soft Matter 2021 Apr 20. Epub 2021 Apr 20.

Earth Engineering Center, Center for Advanced Materials for Energy and Environment, Department of Earth and Environmental Engineering, Columbia University, New York, NY 10027, USA.

The study of soft deployable structures is an emergent field that is highly correlated with metamaterial design, soft robotics, medical devices, etc. This paper studies a novel two-dimensional (2D) soft deployable structure that has a fractal layout with hierarchically coupled thin walls, which buckles upon actuation and deforms into a "peacock tail" pattern that is over 10 fold its original dimension. Large deflection theory and finite-element (FE) modeling are used to characterize its mechanical performance and to investigate its potential application in multiple fields. Read More

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Immunomodulatory diet in pediatric age.

Minerva Pediatr (Torino) 2021 Apr;73(2):128-149

Department of Pediatrics, V. Buzzi Children's Hospital, Milan, Italy.

In the last few decades, the importance of a functioning immune system and health status has become more evident. Multiple factors are able to influence the development of chronic diseases and diet is one of the most important environmental factors. Evidence demonstrates that dietary patterns high in fat and low in fiber are associated with the development of non-communicable diseases. Read More

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Occurrence of Dirofilaria immitis in Stray Dogs from Nepal.

Acta Parasitol 2021 Apr 21. Epub 2021 Apr 21.

, Vaxinano, Lille, France.

Background: Nematodes of the genus Dirofilaria are widespread vector-borne helminths (VBH) of veterinary relevance. Dirofilariosis caused by D. immitis is frequently diagnosed in dogs often showing a severe clinical condition known as heartworm disease. Read More

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Body Composition Changes in Children during Treatment for Moderate Acute Malnutrition: Findings from a 4-Arm Cluster-Randomized Trial in Sierra Leone.

J Nutr 2021 Apr 20. Epub 2021 Apr 20.

Friedman School of Nutrition Science and Policy, Tufts University, Medford, MA, USA.

Background: Measures that better describe "healthy" and sustainable recovery during nutritional treatment of children with moderate acute malnutrition (MAM) are needed.

Objectives: We compared changes to body composition among children receiving 1 of 4 specialized nutritious food (SNFs) during treatment of MAM and by recovery and relapse outcomes.

Methods: The study was nested within a prospective, cluster-randomized, community-based, cost-effectiveness trial assessing 4 SNFs to treat children aged 6-59 mo with MAM [midupper arm circumference (MUAC) ≥11. Read More

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High-risk-pattern lung adenocarcinoma with epidermal growth factor receptor mutation is associated with distant metastasis risk and may benefit from adjuvant targeted therapy.

Interact Cardiovasc Thorac Surg 2021 Apr 21. Epub 2021 Apr 21.

Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Thoracic Surgery II, Peking University Cancer Hospital & Institute, Beijing, China.

Objectives: This study aimed to evaluate the value of the high-risk-pattern histology (micropapillary and solid components) for predicting distant metastasis in lung adenocarcinoma and to determine the survival benefit with adjuvant targeted therapy for resected non-small cell lung cancer with high-risk-pattern histology.

Methods: Patients receiving surgery for non-small cell lung cancer were included in this retrospective study. Histological classification was performed according to 2015 World Health Organization classification. Read More

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SARS-CoV-2 ACE2 and TMPRSS2 Receptor Protein Expression Patterns Throughout Gestation.

J Infect Dis 2021 Apr 21. Epub 2021 Apr 21.

Department of Obstetrics & Gynecology, Division of Maternal Fetal Medicine, Massachusetts General Hospital, Boston MA.

We previously demonstrated that the late gestation placental expression pattern of ACE2 (the primary SARS-CoV-2 receptor) is localized to the villous syncytiotrophoblast (ST), usually in a polarized membranous pattern at the ST base sparing the apical surface (that directly exposed to maternal blood). We found that the late gestation placental expression pattern of TMPRSS2 (the spike proteinase required for SARS-CoV-2 cellular infection), is usually absent in the trophoblast but rarely, weakly expressed in the placental endothelium. We now show the developmental protein expression patterns of ACE2 and TMPRSS2 by immunohistochemistry throughout gestation, from first through third trimester. Read More

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Critical role of V1a vasopressin receptor in murine parturition.

Biol Reprod 2021 Apr 19. Epub 2021 Apr 19.

Division of Molecular Pharmacology, Department of Pharmacology, Jichi Medical University, Shimotsuke, Tochigi 329-0498, Japan.

The precise mechanisms of the reproductive physiological processes, such as labor initiation, are poorly understood. Oxytocin (OT) is one of the well-known uterotonics and is clinically adopted as a medication to facilitate childbirth. Vasopressin (VP), a posterior pituitary hormone similar to OT, has also been proposed to be involved in the reproductive physiology. Read More

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Rapalogs downmodulate intrinsic immunity and promote cell entry of SARS-CoV-2.

bioRxiv 2021 Apr 16. Epub 2021 Apr 16.

Infection by SARS-CoV-2 generally causes mild symptoms but can lead to severe disease and death in certain populations, including the immunocompromised. Drug repurposing efforts are underway to identify compounds that interfere with SARS-CoV-2 replication or the immunopathology it can elicit. Rapamycin is among those being currently tested in clinical trials for impacts on COVID-19 severity. Read More

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Anti-inflammatory treatment after cataract surgery in Sweden: changes in prescribing patterns from 2010 to 2017.

BMJ Open Ophthalmol 2021 23;6(1):e000635. Epub 2021 Mar 23.

Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden.

Aims: To investigate changes in the prescribing patterns of postoperative eye drops following cataract surgery in Sweden from 2010 to 2017.

Methods: Data from cataract procedures registered in the National Cataract Register during the month of March from 2010 to 2017 were record linked and sent to the Swedish Prescribed Drug Register, which allowed us to determine which eye drops the patients had obtained from 3 months presurgery to 2 weeks post surgery.

Results: During the 8-year study period, 54 889 surgeries were registered. Read More

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Analysis of application of dental sedation in attention deficit hyperactivity disorder (ADHD) patients using the Korean National Health Insurance data.

J Dent Anesth Pain Med 2021 Apr 31;21(2):99-111. Epub 2021 Mar 31.

Department of Dental Anesthesiology, School of Dentistry, Seoul National University, Seoul, Korea.

Background: Attention deficit hyperactivity disorder (ADHD) is characterized by a persistent pattern of inattention and/or hyperactivity-impulsivity that interferes with functioning or development. It has a worldwide pooled prevalence of 5.29%. Read More

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Meta-Analysis of Correlations between Altmetric Attention Score and Citations in Health Sciences.

Biomed Res Int 2021 7;2021:6680764. Epub 2021 Apr 7.

Department of Endodontics, Dental Research Center, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.

Introduction: In recent years, several controversial reports of the correlation between altmetric score and citations have been published (range: -0.2 to 0.8). Read More

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Formulation, Development and Evaluation of Budesonide Oral Nano-sponges Using DOE Approach: Evidences.

Adv Pharm Bull 2021 Feb 5;11(2):286-294. Epub 2020 Aug 5.

School of Pharmacy and Research People's University Bhopal- 462037, MP, India.

The prevalent types of idiopathic inflammatory bowel disease are ulcerative colitis (UC) and Crohn's disease, which affects a large number of populations. Budesonide (BUD) is a glucocorticoid with potent anti-inflammatory activity but low systemic efficacy because of high receptor affinity and rapid diversion. To overcome low efficacy and availability, a novel BUD nano-sponges was formulated using quasi- solvent diffusion and Eudragit S-100 as polymer. Read More

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February 2021