1,774,759 results match your criteria device


Waste plastic resource recovery from landfilled refuse: A novel waterless cleaning method and its cost-benefit analysis.

J Environ Manage 2022 Jan 12;306:114462. Epub 2022 Jan 12.

The State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China; Shanghai Institute of Pollution Control and Ecological Security, 1515 North Zhongshan Rd. (No. 2), Shanghai, 200092, PR China. Electronic address:

The efficient classification and resource conversion of landfilled refuse can simultaneously realize the secondary pollution prevention and land replacement. This work aimed to investigate the waste plastic resource recovery from landfilled refuse via a novel waterless cleaning method. Composition analysis showed that the content of waste plastic from landfilled refuse had differences between different regions, and the specific weight content range was between 15-40%. Read More

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January 2022

Ruthenium-nickel-cobalt alloy nanoparticles embedded in hollow carbon microtubes as a bifunctional mosaic catalyst for overall water splitting.

J Colloid Interface Sci 2022 Jan 6;612:710-721. Epub 2022 Jan 6.

Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China. Electronic address:

The development of efficient bifunctional catalysts for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is essential for reducing the cost of hydrogen production by water splitting. Herein, hollow microtubes composed of RuNiCo alloy nanoparticles uniformly embedded in the carbon matrix ([email protected]) are prepared through a simple impregnation followed by reduction. Benefiting from the unique mosaic structure and the synergistic effect between Ru and NiCo, [email protected] achieves more exposed active sites and improved reaction kinetics. Read More

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January 2022

The effects of information utility and teachers' knowledge on evaluations of under-informative pedagogy across development.

Cognition 2022 Jan 12;222:104999. Epub 2022 Jan 12.

Department of Psychology, Stanford University, Stanford, CA 94305, United States. Electronic address:

Teaching is a powerful way to transmit knowledge, but with this power comes a hazard: When teachers fail to select the best set of evidence for the learner, learners can be misled to draw inaccurate inferences. Evaluating others' failures as teachers, however, is a nontrivial problem; people may fail to be informative for different reasons, and not all failures are equally blameworthy. How do learners evaluate the quality of teachers, and what factors influence such evaluations? Here, we present a Bayesian model of teacher evaluation that considers the utility of a teacher's pedagogical sampling given their prior knowledge. Read More

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January 2022

Quantifying ventilator unloading in CPAP ventilation.

Comput Biol Med 2022 Jan 10;142:105225. Epub 2022 Jan 10.

Department of Intensive Care, Christchurch Hospital, Christchurch, New Zealand.

Background: The intrinsic (muscular) patient effort driving inspiration in non-invasive ventilation modes, such as continuous positive airway pressure (CPAP) therapy, has not been identified from non-invasive data. Current CPAP settings are based on clinical judgment and assessment of symptoms of respiratory distress. Non-optimal settings, including too much positive end expiratory pressure (PEEP) can cause unintended lung injury and ventilator unloading, where patient effort drops and the CPAP device enables too much work being imposed on the injured lung. Read More

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January 2022

A 510(k) ancestry of robotic surgical systems.

Int J Surg 2022 Jan 12:106229. Epub 2022 Jan 12.

Department of Health Policy and Research, Weill Cornell Medical College, United States.

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January 2022

Myocardial inflammation and sudden death in the inherited cardiomyopathies.

Can J Cardiol 2022 Jan 12. Epub 2022 Jan 12.

Cardiology, Department of Cardiac Thoracic Vascular Sciences and Public Health, University of Padova, Padova, Italy.

The best studied of the inherited cardiomyopathies, hypertrophic (HCM), dilated (DCM) and arrhythmogenic (ACM), present overlapping clinical phenotypes with varying, often unrecognized risk of sudden death. Risk assessment is informed by patient sex and by the specific disease-causing variant. HCM and arrhythmogenic right ventricular cardiomyopathy (ARVC) remain important causes of sudden death. Read More

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January 2022

Tracking raw material flow through a continuous direct compression line Part I of II: Residence time distribution modeling and sensitivity analysis enabling increased process yield.

Int J Pharm 2022 Jan 12:121467. Epub 2022 Jan 12.

Laboratory of Plant and Process Design, Faculty of Biochemical and Chemical Engineering, TU Dortmund University, Emil-Figge-Straße 70, D-44227 Dortmund, Germany.

Continuous manufacturing (CM) offers advantages in quality and space-time yield compared to common batch manufacturing. However, higher yield losses due to the start-up procedure make a broad application uneconomical. This work discusses the possibility of reducing yield losses by adjusting the degree of back-mixing. Read More

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January 2022

Durable Metabolic Improvements 2 Years After Duodenal Mucosal Resurfacing (DMR) in Patients With Type 2 Diabetes (REVITA-1 Study).

Diabetes Res Clin Pract 2022 Jan 12:109194. Epub 2022 Jan 12.

Gastroenterology and Hepatology, Amsterdam University Medical Centers, Academic Medical Center, Amsterdam, The Netherlands. Electronic address:

Aims: Duodenal mucosal resurfacing (DMR) is an endoscopic procedure developed to improve metabolic parameters and restore insulin sensitivity in patients with diabetes. Here we report long-term DMR safety and efficacy from the REVITA-1 study.

Materials And Methods: REVITA-1 was a prospective, single-arm, open-label, multicenter study of DMR feasibility, safety, and efficacy in patients with type 2 diabetes (hemoglobin A1c [HbA1c] of 7. Read More

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January 2022

Treatment of Temporomandibular Joint Heterotopic Ossificans: A Novel Protocol With Multimodal Therapy Based on Literature Review and Presentation of a Unique Case Reportc.

J Oral Maxillofac Surg 2021 Dec 23. Epub 2021 Dec 23.

Program Director and Attending Surgeon, Department of Oral & Maxillofacial Surgery, Walter Reed National Military Medical Center.

Purpose: The purpose of this study was to create a treatment protocol for cases of heterotopic ossification (HO) of the temporomandibular joint (TMJ), particularly those refractory to current TMJ HO protocols. In addition, we demonstrate the success of this protocol on a unique case of recurrent HO that failed multiple TMJ HO protocols in the setting of an improvised explosive device (IED) blast in a wounded warrior.

Methods: An electronic literature review was conducted via PubMed and Web of Science. Read More

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December 2021

Simultaneously Achieving Highly Efficient and Stable Polymer:Non-Fullerene Solar Cells Enabled By Molecular Structure Optimization and Surface Passivation.

Adv Sci (Weinh) 2022 Jan 15:e2104588. Epub 2022 Jan 15.

School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, 230026, P. R. China.

Despite the tremendous efforts in developing non-fullerene acceptor (NFA) for polymer solar cells (PSCs), only few researches are done on studying the NFA molecular structure dependent stability of PSCs, and long-term stable PSCs are only reported for the cells with low efficiency. Herein, the authors compare the stability of inverted PM6:NFA solar cells using ITIC, IT-4F, Y6, and N3 as the NFA, and a decay rate order of IT-4F > Y6 ≈ N3 > ITIC is measured. Quantum chemical calculations reveal that fluorine substitution weakens the C═C bond and enhances the interaction between NFA and ZnO, whereas the β-alkyl chains on the thiophene unit next to the C═C linker blocks the attacking of hydroxyl radicals onto the C═C bonds. Read More

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January 2022

Echocardiographic imaging of temporary percutaneous mechanical circulatory support devices.

J Echocardiogr 2022 Jan 15. Epub 2022 Jan 15.

University of Washington Medical Center Heart Institute, 1959 Pacific St., Box 356422, Seattle, WA, 98195, USA.

Cardiogenic shock is a state of end-organ hypoperfusion due to primary cardiac dysfunction and portends a poor prognosis. Shock refractory to inotropic and vasopressor support is often an indication for mechanical circulatory support. When mechanical support device complications or malfunction arise, echocardiography offers rapid assessment of device position and function. Read More

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January 2022

1.3 kV Vertical GaN-Based Trench MOSFETs on 4-Inch Free Standing GaN Wafer.

Nanoscale Res Lett 2022 Jan 15;17(1):14. Epub 2022 Jan 15.

College of Materials Science and Engineering, College of Electronics and Information Engineering, College of Physics and Optoelectronic Engineering, Institute of Microelectronics (IME), Shenzhen University, Shenzhen, 518060, China.

In this work, a vertical gallium nitride (GaN)-based trench MOSFET on 4-inch free-standing GaN substrate is presented with threshold voltage of 3.15 V, specific on-resistance of 1.93 mΩ·cm, breakdown voltage of 1306 V, and figure of merit of 0. Read More

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January 2022

The endometriosis daily diary: qualitative research to explore the patient experience of endometriosis and inform the development of a patient-reported outcome (PRO) for endometriosis-related pain.

J Patient Rep Outcomes 2022 Jan 15;6(1). Epub 2022 Jan 15.

Adelphi Values, Adelphi Mill, Bollington, Cheshire, SK10 5JB, UK.

Purpose: Endometriosis is a chronic disorder of the female reproductive system characterized by debilitating symptoms, particularly endometriosis-related pain (ERP). Patient-reported outcome (PRO) measures of symptoms and impacts are required to assess disease severity in ERP clinical studies and clinical practice. A content-valid instrument was developed by modifying the Dysmenorrhea Daily Diary (DysDD) to form the Endometriosis Daily Diary (EDD), an electronic PRO administered via handheld device. Read More

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January 2022

CT angiography for the assessment of EVAR complications: a pictorial review.

Insights Imaging 2022 Jan 15;13(1). Epub 2022 Jan 15.

Section of Radiology - BiND, University Hospital "Paolo Giaccone", University of Palermo, Via del Vespro 129, 90127, Palermo, Italy.

Endovascular aneurysm repair (EVAR) is a minimally invasive treatment proposed as an alternative to open repair in patients with abdominal aortic aneurysms. EVAR consists in a stent-graft placement within the aorta in order to exclude the aneurysm from arterial circulation and reduce the risk of rupture. Knowledge of the various types of devices is mandatory because some stents/grafts are more frequently associated with complications. Read More

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January 2022

Enrichment of phosphate-accumulating organisms (PAOs) in a microfluidic model biofilm system by mimicking a typical aerobic granular sludge feast/famine regime.

Appl Microbiol Biotechnol 2022 Jan 15. Epub 2022 Jan 15.

Institute for Technical Microbiology (TMI), Hamburg University of Technology (TUHH), Kasernenstr. 12, 21073, Hamburg, Germany.

Wastewater treatment using aerobic granular sludge has gained increasing interest due to its advantages compared to conventional activated sludge. The technology allows simultaneous removal of organic carbon, nitrogen, and phosphorus in a single reactor system and is independent of space-intensive settling tanks. However, due to the microscale, an analysis of processes and microbial population along the radius of granules is challenging. Read More

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January 2022

Predictors of optimal procedural result after transcatheter edge-to-edge mitral valve repair in secondary mitral regurgitation.

Catheter Cardiovasc Interv 2022 Jan 15. Epub 2022 Jan 15.

Cardiology and Cardiac Catheterization Laboratory, ASST Spedali Civili di Brescia, Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Brescia, Italy.

Background: Procedural success after transcatheter edge-to-edge mitral valve repair (TEER) is defined as a reduction of mitral regurgitation (MR) degree to
Aim: To evaluate predictors and prognostic impact of optimal procedural result (MR 0/1+) after TEER. Read More

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January 2022

Automatic system for high-throughput and high-sensitivity diagnosis of SARS-CoV-2.

Bioprocess Biosyst Eng 2022 Jan 15. Epub 2022 Jan 15.

Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, 510320, People's Republic of China.

The coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has had severe consequences for health and the global economy. To control the transmission, there is an urgent demand for early diagnosis and treatment in the general population. In the present study, an automatic system for SARS-CoV-2 diagnosis is designed and built to deliver high specification, high sensitivity, and high throughput with minimal workforce involvement. Read More

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January 2022

Adult oncology patients' experiences of living with a central venous catheter: a systematic review and meta-synthesis.

Support Care Cancer 2022 Jan 14. Epub 2022 Jan 14.

Department of Health Professions, Campus Bio-Medico of Rome University Hospital, Via Alvaro del Portillo, 200, 00128, Rome, Italy.

Background: The incidence of cancer is increasing globally, and a greater number of patients will receive treatments though central vascular access devices (CVADs). Only a few qualitative studies describe the experience of adult oncology patients living with CVADs, and no systematic review of literature has been published on this topic. We therefore aimed to systematically synthesize the evidence of the qualitative studies on the experience of adult oncology patients with CVADs to report the implications of living with this device, and to inform healthcare professionals (HCPs) about problematic aspects of care for this population. Read More

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January 2022

Ductal carcinoma in situ: a risk prediction model for the underestimation of invasive breast cancer.

NPJ Breast Cancer 2022 Jan 14;8(1). Epub 2022 Jan 14.

Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.

Patients with a biopsy diagnosis of ductal carcinoma in situ (DCIS) may be diagnosed with invasive breast cancer after excision. We evaluated the preoperative clinical and imaging predictors of DCIS that were associated with an upgrade to invasive carcinoma on final pathology and also compared the diagnostic performance of various statistical models. We reviewed the medical records; including mammography, ultrasound (US), and magnetic resonance imaging (MRI) findings; of 644 patients who were preoperatively diagnosed with DCIS and who underwent surgery between January 2012 and September 2018. Read More

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January 2022

Development of Duration-Based Non-Mutagenic Thresholds of Toxicological Concern (TTC) Relevant to Parenteral Extractables and Leachables (E&Ls).

PDA J Pharm Sci Technol 2022 Jan 14. Epub 2022 Jan 14.

Faegre Drinker Biddle & Reath LLP.

The threshold of toxicological concern (TTC), i.e., the dose of a compound lacking sufficient experimental toxicity data that is unlikely to result in an adverse health effect in humans, is important for evaluating extractables and leachables (E&Ls) as it guides analytical testing and minimizes the use of animal studies. Read More

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January 2022

A predictive modelling approach to support the overfill volume definition of liquid-in-vial drug products.

PDA J Pharm Sci Technol 2022 Jan 14. Epub 2022 Jan 14.

UCB Pharma, Chemin du Foriest, 1420 Braine-l'Alleud, Belgium.

Liquid-in-vial drug products are typically overfilled to meet the label claim volume specification while taking into account for losses in the container-closure system and withdrawal device. Any overfill volume setting requires justification. The aim of this study was to estimate the overfill volume required for a liquid drug product in a vial using a prediction model. Read More

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January 2022

Improved access to rapid electroencephalography at a community hospital reduces inter-hospital transfers for suspected non-convulsive seizures.

Epileptic Disord 2022 Jan 12. Epub 2022 Jan 12.

Department of Neurology & Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA.

Patients with suspected non-convulsive seizures are optimally evaluated with EEG. However, limited EEG infrastructure at community hospitals often necessitates transfer for long-term EEG monitoring (LTM). Novel point-of-care EEG systems could expedite management of non-convulsive seizures and reduce unnecessary transfers. Read More

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January 2022

Evaluation of a syndromic panel polymerase chain reaction (spPCR) assay for the diagnosis of device associated bone and joint infections (BJI).

Int J Infect Dis 2022 Jan 11. Epub 2022 Jan 11.

Institut für Medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany. Electronic address:

Objective: Pathogen detection is crucial for diagnosis and targeted therapy in implant-associated bone and joint infections (BJI). Culture-based microbiology regularly fails to identify causative pathogens. This study evaluated the diagnostic accuracy and clinical usefulness of a syndromic panel PCR (spPCR) assay targeting common BJI pathogens in tissue specimens from patients with implant-associated BJI. Read More

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January 2022

Strength of clinical indication and therapeutic impact of the implantable cardioverter defibrillator in patients with hypertrophic cardiomyopathy.

Int J Cardiol 2022 Jan 11. Epub 2022 Jan 11.

Cardiomyopathy Unit, Cardiothoracic and Vascular Department and Cardiomyopathy Unit, Careggi University Hospital, Florence, Italy; Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy.

Background: The implantable cardioverter defibrillator(ICD) has revolutionized the management of patients with hypertrophic cardiomyopathy (HCM) at risk of sudden cardiac death (SCD). However, the identification of ideal candidates remains challenging. We aimed to describe the long-term impact of the ICD for primary prevention in patients with HCM based on stringent (high SCD risk) vs lenient indications (need for pacing/personal choice). Read More

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January 2022

Complex family planning and pediatric hematology oncology integrated clinic for young people with blood disorders and heavy or abnormal menstrual bleeding.

Contraception 2022 Jan 11. Epub 2022 Jan 11.

Department of Obstetrics and Gynecology, Family Planning, University of California, Davis; Sacramento CA USA.

Objectives: To describe practice patterns of an integrated complex family planning-pediatric hematology oncology clinic for patients with blood disorders STUDY DESIGN: : We retrospectively evaluated the outcomes of patients who had an initial consultation for blood disorders impacting menstrual bleeding in an integrated complex family planning-pediatric hematology oncology clinic from October 2015 to September 2020. We reviewed all charts to extract medical and gynecologic history, blood disorder diagnosis, hormonal treatment prior to and following initial consultation, subsequent visits to the integrated clinic, and hormonal treatment up to 24 months after initial consultation.

Results: We saw 47 patients; their most common blood disorder diagnosis was protein defect (14/47, 30%). Read More

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January 2022

Device-Based Therapies for Resistant Hypertension: Implications for the Perioperative Clinician.

J Cardiothorac Vasc Anesth 2021 Oct 28. Epub 2021 Oct 28.

Division of Cardiovascular and Thoracic Anesthesiology, Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN. Electronic address:

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October 2021

Performance and usability evaluation of novel intradermal injection device Immucise™ and reanalysis of intradermal administration trials of influenza vaccine for the elderly.

Vaccine 2022 Jan 11. Epub 2022 Jan 11.

R&D Department, Alliance Division, General Hospital Company, TERUMO CORPORATION, Japan. Electronic address:

Under the pandemic situation, there is an urgent need to produce and acquire sufficient quantities of prophylactic vaccines. It becomes important to devise a way to achieve reliable immunity with lower doses to distribute limited supplies of vaccines to maximum number of people very quickly. Intradermal (ID) vaccination is one such method to increase the effectiveness of vaccines. Read More

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January 2022

The Optimal Sample Size for Usability Testing, From the Manufacturer's Perspective: A Value-of-Information Approach.

Value Health 2022 Jan 28;25(1):116-124. Epub 2021 Aug 28.

University Lille, Inserm, CHU Lille, Institut Pasteur Lille, U1167, Lille, France; Direction de la Recherche et de l'Innovation, CHU Lille, Lille, France.

Objectives: For medical devices, a usability assessment is mandatory for market access; the objective is to detect potentially harmful use errors that stem from the device's design. The manufacturer assesses the final version of the device and determines the risk-benefit ratio for remaining errors. Nevertheless, the decision rule currently used to determine the sample size for this testing has statistical limitations and the lack of a clear decision-making perspective. Read More

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January 2022

Schottky-type GaN-based UV photodetector with atomic-layer-deposited TiN thin film as electrodes.

Opt Lett 2022 Jan;47(2):429-432

In this work, a GaN-based UV photodetector with an asymmetric electrode structure was fabricated by atomic layer deposition (ALD) of TiN layers. The thickness of the TiN can be monitored in situ by a quartz crystal microbalance (QCM) and precisely controlled through the modulation of deposition cycles. During the ALD process, periodic variation in the QCM frequency was observed and correlated to the physical adsorption, chemical bonding, and the excessive precursor exhaust, which included tetrakis(dimethylamino)titanium (TDMAT) and N sources. Read More

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January 2022