4,203 results match your criteria sensor sense


Plate Positioning Affects the Pressure on the Axillary Nerve Following a Deltopectoral Approach.

Acta Chir Orthop Traumatol Cech 2021 ;88(2):153-157

Istanbul Medeniyet University, Department of Orthopaedic Surgery and Traumatology, Istanbul, Turkey.

PURPOSE OF THE STUDY To investigate the pressure levels on the axillary nerve at different plate positions after plate fixation of a proximal humerus fracture. MATERIAL AND METHODS Eight fresh-frozen cadaveric specimens were used. The plates were applied on the lateral side of the humerus. Read More

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January 2021

Underwater Communication and Optical Camouflage Ionogels.

Adv Mater 2021 May 6:e2008479. Epub 2021 May 6.

State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, 200433, P. R. China.

Marine animals, such as leptocephalus and jellyfish, can sense external stimuli and achieve optical camouflage in the aquatic environment. Fabricating an intelligent soft sensor that can mimic the capabilities of transparent marine animals and function underwater can enable transformative applications in various novel fields. However, previously reported soft sensors struggle to meet the requirements of adhesion, self-healing ability, optical transparency, and stable conductivity in the aquatic environment. Read More

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Infrared Plasmonic Sensing with Anisotropic Two-Dimensional Material Borophene.

Nanomaterials (Basel) 2021 Apr 29;11(5). Epub 2021 Apr 29.

Department of Physics, College of Liberal Arts and Sciences, National University of Defense Technology, Changsha 410073, China.

Borophene, a new member of the two-dimensional material family, has been found to support surface plasmon polaritons in visible and infrared regimes, which can be integrated into various optoelectronic and nanophotonic devices. To further explore the potential plasmonic applications of borophene, we propose an infrared plasmonic sensor based on the borophene ribbon array. The nanostructured borophene can support localized surface plasmon resonances, which can sense the local refractive index of the environment via spectral response. Read More

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Mixed Assessment of Virtual Serious Games Applied in Architectural and Urban Design Education.

Sensors (Basel) 2021 Apr 29;21(9). Epub 2021 Apr 29.

Escola Tècnica Superior d'Arquitectura de Barcelona, Universitat Politècnica de Catalunya, 08028 Barcelona, Spain.

The creation and usage of serious games on virtual reality (VR) and/or interactive platforms for the teaching of architecture, construction, urban planning, and other derived areas, such as security and risk prevention, require design processes, studies, and research that lead to further consolidation expansion. In that sense, this paper presents two main aims developed: the improvement of a virtual navigation system through the results of previous user studies and mixed research (quantitative and qualitative) improved based on the user perception for educational and professional uses. The VR system used is based on Unreal Engine programming of the HTC Vive sensor. Read More

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Cytosolic DNA sensing by cGAS: regulation, function, and human diseases.

Authors:
Le Yu Pengda Liu

Signal Transduct Target Ther 2021 Apr 30;6(1):170. Epub 2021 Apr 30.

Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.

Sensing invasive cytosolic DNA is an integral component of innate immunity. cGAS was identified in 2013 as the major cytosolic DNA sensor that binds dsDNA to catalyze the synthesis of a special asymmetric cyclic-dinucleotide, 2'3'-cGAMP, as the secondary messenger to bind and activate STING for subsequent production of type I interferons and other immune-modulatory genes. Hyperactivation of cGAS signaling contributes to autoimmune diseases but serves as an adjuvant for anticancer immune therapy. Read More

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A New Tactile Transfer Cell Using Magnetorheological Materials for Robot-Assisted Minimally Invasive Surgery.

Sensors (Basel) 2021 Apr 26;21(9). Epub 2021 Apr 26.

Department of Mechanical Engineering, The State University of New York, Korea (SUNY Korea), Incheon 21985, Korea.

This paper proposes a new type of tactile transfer cell which can be effectively applied to robot-assisted minimally invasive surgery (RMIS). The proposed tactile device is manufactured from two smart materials, a magnetorheological fluid (MRF) and a magnetorheological elastomer (MRE), whose viscoelastic properties are controllable by an external magnetic field. Thus, it can produce field-dependent repulsive forces which are equivalent to several human organs (or tissues) such as a heart. Read More

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Short- and Long-Term Effects of a Scapular-Focused Exercise Protocol for Patients with Shoulder Dysfunctions-A Prospective Cohort.

Sensors (Basel) 2021 Apr 20;21(8). Epub 2021 Apr 20.

Escola Superior Saúde-Instituto Politécnico de Setúbal, 2910-761 Setúbal, Portugal.

Current clinical practice lacks consistent evidence in the management of scapular dyskinesis. This study aims to determine the short- and long-term effects of a scapular-focused exercise protocol facilitated by real-time electromyographic biofeedback (EMGBF) on pain and function, in individuals with rotator cuff related pain syndrome (RCS) and anterior shoulder instability (ASI). One-hundred and eighty-three patients were divided into two groups ( = 117 RCS and = 66 ASI) and guided through a structured exercise protocol, focusing on scapular dynamic control. Read More

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The Effect of Different Turn Speeds on Whole-Body Coordination in Younger and Older Healthy Adults.

Sensors (Basel) 2021 Apr 16;21(8). Epub 2021 Apr 16.

Allied Health Research Unit, University of Central Lancashire, Preston PR1 2HE, UK.

Difficulty in turning is prevalent in older adults and results in postural instability and risk of falling. Despite this, the mechanisms of turning problems have yet to be fully determined, and it is unclear if different speeds directly result in altered posture and turning characteristics. The aim of this study was to identify the effects of turning speeds on whole-body coordination and to explore if these can be used to help inform fall prevention programs in older adults. Read More

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The Smart-Insole Dataset: Gait Analysis Using Wearable Sensors with a Focus on Elderly and Parkinson's Patients.

Sensors (Basel) 2021 Apr 16;21(8). Epub 2021 Apr 16.

Biomedical Informatics and eHealth Laboratory, Department of Electrical and Computer Engineering, Hellenic Mediterranean University, Estavromenos, 71004 Heraklion, Greece.

Gait analysis is crucial for the detection and management of various neurological and musculoskeletal disorders. The identification of gait events is valuable for enhancing gait analysis, developing accurate monitoring systems, and evaluating treatments for pathological gait. The aim of this work is to introduce the Smart-Insole Dataset to be used for the development and evaluation of computational methods focusing on gait analysis. Read More

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Non-Contact Inspection of Railhead via Laser-Generated Rayleigh Waves and an Enhanced Matching Pursuit to Assist Detection of Surface and Subsurface Defects.

Sensors (Basel) 2021 Apr 24;21(9). Epub 2021 Apr 24.

Croucher Optical Nondestructive Testing Laboratory, Department of System Engineering and Engineering Management, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.

Laser ultrasonic technology can provide a non-contact, reliable and efficient inspection of train rails. However, the laser-generated signals measured at the railhead are usually contaminated with a high level of noise and unwanted wave components that complicate the identification of defect echoes in the signal. This study explores the possibility of combining laser ultrasonic technology (LUT) and an enhanced matching pursuit (MP) to achieve a fully non-contact inspection of the rail track. Read More

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Olfactory Detection of Toluene by Detection Rats for Potential Screening of Lung Cancer.

Sensors (Basel) 2021 Apr 23;21(9). Epub 2021 Apr 23.

Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahang-ro, Yuseong-gu, Daejeon 34141, Korea.

Early detection is critical to successfully eradicating a variety of cancers, so the development of a new cancer primary screening system is essential. Herein, we report an animal nose sensor system for the potential primary screening of lung cancer. To establish this, we developed an odor discrimination training device based on operant conditioning paradigms for detection of toluene, an odor indicator component of lung cancer. Read More

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Vision-Based Road Rage Detection Framework in Automotive Safety Applications.

Sensors (Basel) 2021 Apr 22;21(9). Epub 2021 Apr 22.

National Research Council of Italy, IMM-Institute for Microelectronics and Microsystems, 73100 Lecce, Italy.

Drivers' road rage is among the main causes of road accidents. Each year, it contributes to more deaths and injuries globally. In this context, it is important to implement systems that can supervise drivers by monitoring their level of concentration during the entire driving process. Read More

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Towards a Combined Use of Geophysics and Remote Sensing Techniques for the Characterization of a Singular Building: "El Torreón" (the Tower) at Ulaca (Solosancho, Ávila, Spain).

Sensors (Basel) 2021 Apr 22;21(9). Epub 2021 Apr 22.

Gran Duque de Alba Institution, Diputación Provincial de Ávila, Paseo Dos de Mayo, 8, 05001 Ávila, Spain.

This research focuses on the study of the ruins of a large building known as "El Torreón" (the Tower), belonging to the Ulaca (Solosancho, Province of Ávila, Spain). Different remote sensing and geophysical approaches have been used to fulfil this objective, providing a better understanding of the building's functionality in this town, which belongs to the Late Iron Age (ca. 300-50 BCE). Read More

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Proof of Principle for Direct Reconstruction of Qualitative Depth Information from Turbid Media by a Single Hyper Spectral Image.

Sensors (Basel) 2021 Apr 19;21(8). Epub 2021 Apr 19.

Institute of Photonic Technologies (LPT), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Konrad-Zuse-Strasse 3/5, 91052 Erlangen, Germany.

In medical applications, hyper-spectral imaging is becoming more and more common. It has been shown to be more effective for classification and segmentation than normal RGB imaging because narrower wavelength bands are used, providing a higher contrast. However, until now, the fact that hyper-spectral images also contain information about the three-dimensional structure of turbid media has been neglected. Read More

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Nonlinear T-Wave Time Warping-Based Sensing Model for Non-Invasive Personalised Blood Potassium Monitoring in Hemodialysis Patients: A Pilot Study.

Sensors (Basel) 2021 Apr 12;21(8). Epub 2021 Apr 12.

CIBER en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 50018 Zaragoza, Spain.

Background: End-stage renal disease patients undergoing hemodialysis (ESRD-HD) therapy are highly susceptible to malignant ventricular arrhythmias caused by undetected potassium concentration ([K+]) variations (Δ[K+]) out of normal ranges. Therefore, a reliable method for continuous, noninvasive monitoring of [K+] is crucial. The morphology of the T-wave in the electrocardiogram (ECG) reflects Δ[K+] and two time-warping-based T-wave morphological parameters, dw and its heart-rate corrected version dw,c, have been shown to reliably track Δ[K+] from the ECG. Read More

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Development of a Novel Design and Subsequent Fabrication of an Automated Touchless Hand Sanitizer Dispenser to Reduce the Spread of Contagious Diseases.

Healthcare (Basel) 2021 Apr 10;9(4). Epub 2021 Apr 10.

Department of Physics, Princess Nourah Bint Abdulrahman University, Riyadh 11144, Saudi Arabia.

Background: The use of a touchless automated hand sanitizer dispenser may play a key role to reduce contagious diseases. The key problem of the conventional ultrasonic and infra-red-based dispensers is their malfunctioning due to the interference of sunlight, vehicle sound, etc. when deployed in busy public places. Read More

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A Systematic Review of Commercial Smart Gloves: Current Status and Applications.

Sensors (Basel) 2021 Apr 10;21(8). Epub 2021 Apr 10.

atlanTTic Research Center for Telecommunication Technologies, Universidade de Vigo, 36312 Vigo, Spain.

Smart gloves have been under development during the last 40 years to support human-computer interaction based on hand and finger movement. Despite the many devoted efforts and the multiple advances in related areas, these devices have not become mainstream yet. Nevertheless, during recent years, new devices with improved features have appeared, being used for research purposes too. Read More

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Braille Block Detection via Multi-Objective Optimization from an Egocentric Viewpoint.

Sensors (Basel) 2021 Apr 14;21(8). Epub 2021 Apr 14.

Department of Engineering, University of Fukui, Fukui 910-8507, Japan.

In this paper, we propose a method to detect Braille blocks from an egocentric viewpoint, which is a key part of many walking support devices for visually impaired people. Our main contribution is to cast this task as a multi-objective optimization problem and exploits both the geometric and the appearance features for detection. Specifically, two objective functions were designed under an evolutionary optimization framework with a line pair modeled as an individual (i. Read More

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Adaptive Diagnosis for Fault Tolerant Data Fusion Based on -Rényi Divergence Strategy for Vehicle Localization.

Entropy (Basel) 2021 Apr 14;23(4). Epub 2021 Apr 14.

CRSI LaRGES, Lebanese University, Tripoli 1300, Lebanon.

When applying a diagnostic technique to complex systems, whose dynamics, constraints, and environment evolve over time, being able to re-evaluate the residuals that are capable of detecting defaults and proposing the most appropriate ones can quickly prove to make sense. For this purpose, the concept of adaptive diagnosis is introduced. In this work, the contributions of information theory are investigated in order to propose a Fault-Tolerant multi-sensor data fusion framework. Read More

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The Influence of Packing Methods and Storage Time of Poultry Sausages with Liquid and Microencapsulated Fish Oil Additives on Their Physicochemical, Microbial and Sensory Properties.

Sensors (Basel) 2021 Apr 9;21(8). Epub 2021 Apr 9.

Department of Food Quality and Safety Management, Faculty of Food Science and Nutrition, University of Life Sciences, Wojska Polskiego 31, 60-624 Poznan, Poland.

The aim of the study was to evaluate the influence of refined fish oil additives in liquid and microencapsulated forms, packing method (VP-vacuum packing, MAP-modified atmosphere packing) and storage time (1, 7, 14, 21 days) on selected physicochemical, microbiological and sensory characteristics of minced poultry sausage. Principle component analysis (PCA) showed that the fish oil additive, packing method and storage time significantly influenced some of the physicochemical characteristics of the sausages. The pH value was negatively correlated with the type of sample and packing method. Read More

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Drone Swarms as Networked Control Systems by Integration of Networking and Computing.

Sensors (Basel) 2021 Apr 9;21(8). Epub 2021 Apr 9.

Computer Science Faculty, Federal University of Pará, Belém 66075-110, Brazil.

The study of multi-agent systems such as drone swarms has been intensified due to their cooperative behavior. Nonetheless, automating the control of a swarm is challenging as each drone operates under fluctuating wireless, networking and environment constraints. To tackle these challenges, we consider drone swarms as Networked Control Systems (NCS), where the control of the overall system is done enclosed within a wireless communication network. Read More

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Structural Reinforcement Effect of a Flexible Strain Sensor Integrated with Pneumatic Balloon Actuators for Soft Microrobot Fingers.

Micromachines (Basel) 2021 Apr 2;12(4). Epub 2021 Apr 2.

Graduate Course of Science and Engineering, Ritsumeikan University, Kusatsu 525-8577, Japan.

Motion capture of a robot and tactile sensing for a robot require sensors. Strain sensors are used to detect bending deformation of the robot finger and to sense the force from an object. It is important to introduce sensors in effective combination with actuators without affecting the original performance of the robot. Read More

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Recent Trends in the Improvement of the Electrochemical Response of Screen-Printed Electrodes by Their Modification with Shaped Metal Nanoparticles.

Sensors (Basel) 2021 Apr 7;21(8). Epub 2021 Apr 7.

Grup de Biotecnologia Molecular i Industrial, Universitat Politècnica de Catalunya, Rambla Sant Nebridi 22, Edifici Gaia TR14, 08222 Terrassa, Spain.

Novel sensing technologies proposed must fulfill the demands of wastewater treatment plants, the food industry, and environmental control agencies: simple, fast, inexpensive, and reliable methodologies for onsite screening, monitoring, and analysis. These represent alternatives to conventional analytical methods (ICP-MS and LC-MS) that require expensive and non-portable instrumentation. This needs to be controlled by qualified technicians, resulting moreover in a long delay between sampling and high-cost analysis. Read More

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Dataset of Tactile Signatures of the Human Right Hand in Twenty-One Activities of Daily Living Using a High Spatial Resolution Pressure Sensor.

Sensors (Basel) 2021 Apr 7;21(8). Epub 2021 Apr 7.

Department of Mechanical Engineering and Construction, Universitat Jaume I, 12071 Castellón de la Plana, Spain.

Successful grasping with multi-fingered prosthetic or robotic hands remains a challenge to be solved for the effective use of these hands in unstructured environments. To this end, currently available tactile sensors need to improve their sensitivity, robustness, and spatial resolution, but a better knowledge of the distribution of contact forces in the human hand in grasping tasks is also necessary. The human tactile signatures can inform models for an efficient control of the artificial hands. Read More

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Computational Strategies for the Identification of a Transcriptional Biomarker Panel to Sense Cellular Growth States in .

Sensors (Basel) 2021 Apr 1;21(7). Epub 2021 Apr 1.

Interdisciplinary Computing and Complex BioSystems (ICOS) Group, School of Computing, Newcastle University, Newcastle upon Tyne NE1 7RU, UK.

A goal of the biotechnology industry is to be able to recognise detrimental cellular states that may lead to suboptimal or anomalous growth in a bacterial population. Our current knowledge of how different environmental treatments modulate gene regulation and bring about physiology adaptations is limited, and hence it is difficult to determine the mechanisms that lead to their effects. Patterns of gene expression, revealed using technologies such as microarrays or RNA-seq, can provide useful biomarkers of different gene regulatory states indicative of a bacterium's physiological status. Read More

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Sensitive and selective detections of mustard gas and its analogues by 4-mercaptocoumarins as fluorescent chemosensors in both solutions and gas phase.

J Hazard Mater 2021 Apr 6;416:125789. Epub 2021 Apr 6.

Department of Chemistry, University of Science and Technology of China, Hefei 230026, PR China. Electronic address:

Mustard gas has been used as a chemical warfare agent for a century, and is the most likely chemical weapon used in wars or by terrorists. Thus, it is important to develop a facile, rapid and highly selective method for the detection of mustard gas. In this paper, two fluorescent probe molecules, 4-mercaptocoumarins, have been developed for rapid and sensitive detections of SM and its analogues (CEES and NH1) in both solutions and gas phase. Read More

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The Cytoskeleton and Connected Elements in Bone Cell Mechano-Transduction.

Bone 2021 Apr 20:115971. Epub 2021 Apr 20.

Department of Orthopaedics, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.. Electronic address:

Bone is a mechano-responsive tissue that adapts to changes in its mechanical environment. Increases in strain lead to increased bone mass acquisition, whereas decreases in strain lead to a loss of bone mass. Given that mechanical stress is a regulator of bone mass and quality, it is important to understand how bone cells sense and transduce these mechanical cues into biological changes to identify druggable targets that can be exploited to restore bone cell mechano-sensitivity or to mimic mechanical load. Read More

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Short-Term Wearable Sensors for In-Hospital Medical and Surgical Patients: Mixed Methods Analysis of Patient Perspectives.

JMIR Perioper Med 2021 Apr 22;4(1):e18836. Epub 2021 Apr 22.

Department of Surgery and Cancer, Imperial College London, London, United Kingdom.

Background: Continuous vital sign monitoring using wearable sensors may enable early detection of patient deterioration and sepsis.

Objective: This study aimed to explore patient experiences with wearable sensor technology and carry out continuous monitoring through questionnaire and interview studies in an acute hospital setting.

Methods: Patients were recruited for a wearable sensor study and were asked to complete a 9-item questionnaire. Read More

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Dimer Asymmetry and Light Activation Mechanism in Blue-Light Sensor Histidine Kinase.

mBio 2021 04 20;12(2). Epub 2021 Apr 20.

Fundación Instituto Leloir, IIBBA-CONICET, Buenos Aires, Argentina

The ability to sense and respond to environmental cues is essential for adaptation and survival in living organisms. In bacteria, this process is accomplished by multidomain sensor histidine kinases that undergo autophosphorylation in response to specific stimuli, thereby triggering downstream signaling cascades. However, the molecular mechanism of allosteric activation is not fully understood in these important sensor proteins. Read More

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A Mixed-Signal Chip-Based Configurable Coherent Photoacoustic-Radar Sensing Platform for In Vivo Temperature Monitoring and Vital Signs Detection.

IEEE Trans Biomed Circuits Syst 2021 Apr 20;PP. Epub 2021 Apr 20.

For precise health status monitoring and disease diagnostics in the current COVID-19 pandemic, it is essential to detect various kinds of target signals robustly under high noise and strong interferences. Moreover, the health monitoring system is preferred to be realized in a small form factor for convenient mass deployments. A CMOS-integrated coherent sensing platform is proposed to achieve the goal, which synergetically leverages quadrature coherent photoacoustic (PA) detection and radar sensing for versatile healthcare. Read More

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