26,520 results match your criteria total output

Identifying optimal virtual water management strategy for Kazakhstan: A factorial ecologically-extended input-output model.

J Environ Manage 2021 Jul 19;297:113303. Epub 2021 Jul 19.

School of Environmental Science and Engineering, Xiamen University of Technology, Xiamen, 361024, China. Electronic address:

Virtual water is an important indicator measuring the amount of water needed from the perspective of consumption, which can help decision makers to identify desired system design and optimal management strategy against water resources shortage. In this study, a novel model named as factorial ecologically-extended input-output model (abbreviated as FEIOM) is developed for virtual water management. FEIOM integrates techniques of input-output model (IOM), ecological network analysis (ENA) and factorial analysis (FA) into a general framework. Read More

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Evaluation of an inertial measurement unit-based approach for determining centre-of-mass movement during non-seated cycling.

J Biomech 2021 Apr 19;126:110441. Epub 2021 Apr 19.

Centre for Sensorimotor Performance School of Human Movement and Nutrition Sciences, The University of Queensland, St Lucia, Queensland, Australia.

Instantaneous crank power does not equal total joint power if a rider's centre of mass (CoM) gains and loses mechanical energy. Thus, estimating CoM motion and the associated energy changes can provide valuable information about the mechanics of cycling. To date, an accurate and precise method for tracking CoM motion during outdoor cycling has not been validated. Read More

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Acute Kidney Injury and Associated Factors in Intensive Care Units at a Tertiary Hospital in Northern Tanzania.

Can J Kidney Health Dis 2021 8;8:20543581211027971. Epub 2021 Jul 8.

Kilimanjaro Christian Medical University College, Moshi, Tanzania.

Background: Acute kidney injury (AKI) is a recognized complication in critically ill patients. The epidemiology of AKI varies worldwide, depending on the diagnostic criteria used and the setting. The International Society of Nephrology has called for a reduction in preventable deaths from AKI to zero by the year 2025. Read More

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Study of the Effect of Reflections on High-Power, 110 GHz Pulsed Gyrotron Operation.

J Infrared Millim Terahertz Waves 2021 May 5;42:547-556. Epub 2021 Feb 5.

Massachusetts Institute of Technology (MIT), Plasma Science and Fusion Center (PSFC), Cambridge, MA 02139 USA.

The effect of reflection is studied experimentally and theoretically on a high-power 110 GHz gyrotron operating in the TE mode in 3 s pulses at 96 kV, 40 A. The experimental setup allows variation of the reflected power from 0 to 33 % over a range of gyrotron operating conditions. The phase of the reflection is varied by translating the reflector along the axis. Read More

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Assessing the Performance of Food Safety Management System Using Food Safety Management System Diagnostic Tools and Microbial Assessment Scheme: A Case of Powdered Beverage Manufacturers.

Malays J Med Sci 2021 Jun 30;28(3):129-142. Epub 2021 Jun 30.

Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.

Background: The objective of the study is to assess the performance of the Food Safety Management System (FSMS) among powdered beverage manufacturers using Food Safety Management System Diagnostic Tools (FSMS-DI) and Microbial Assessment Scheme (MAS).

Methods: FSMS-DI was used to evaluate the context factors, core control and core assurance activities of five powdered beverage manufacturers with different types of FSMS certification. Manufacturer A is not certified with any FSMS, while manufacturers B, C, D and E are complied with MeSTI, GMP, HACCP and ISO 22000, respectively. Read More

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Effect of functional principle, delivery technique, and connection used on aerosol delivery from different nebulizers: An in-vitro study.

Pulm Pharmacol Ther 2021 Jul 16:102054. Epub 2021 Jul 16.

Clinical Pharmacy Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt. Electronic address:

Objective: Nebulizers can be divided according to their functional principle into jet, ultrasonic and vibrating mesh nebulizers with intermittent or continuous aerosol delivery and may be used with many different adapters and connections and all can influence their efficiency. The aim of the present work was to evaluate the effect functional principle, delivery technique, and connection used on aerosol delivered from four different nebulizers.

Methods: Four nebulizers were used in the study; three of them were jet nebulizers (JNs; AeroEclipse, NebuTech, En ful Kit) and one of them was Aerogen Solo vibrating mesh nebulizers (VMN). Read More

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Ensembles Are Required to Handle Aleatoric and Parametric Uncertainty in Molecular Dynamics Simulation.

J Chem Theory Comput 2021 Jul 19. Epub 2021 Jul 19.

Centre for Computational Science, Department of Chemistry, University College London, London WC1H 0AJ, United Kingdom.

Classical molecular dynamics is a computer simulation technique that is in widespread use across many areas of science, from physics and chemistry to materials, biology, and medicine. The method continues to attract criticism due its oft-reported lack of reproducibility which is in part due to a failure to submit it to reliable uncertainty quantification (UQ). Here we show that the uncertainty arises from a combination of (i) the input parameters and (ii) the intrinsic stochasticity of the method controlled by the random seeds. Read More

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Commercial beef farms excelling in terminal and maternal genetic merit generate more gross profit.

Transl Anim Sci 2021 Jul 9;5(3):txab101. Epub 2021 Jun 9.

Animal and Grassland Research and Innovation Centre, Teagasc, Moorepark, Fermoy, County Cork, Ireland.

Validation of beef total merit breeding indexes for improving performance and profitability has previously been undertaken at the individual animal level; however, no herd-level validation of beef genetic merit and profit has been previously investigated. The objective of the present study was to quantify the relationship between herd profitability and both herd-average terminal and maternal genetic merit across 1,311 commercial Irish beef herds. Herd-level physical and financial performance data were available from a financial benchmarking tool used by Irish farmers and their extension advisors. Read More

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Optimization of Task Allocation for Collaborative Brain-Computer Interface Based on Motor Imagery.

Front Neurosci 2021 2;15:683784. Epub 2021 Jul 2.

Neural Engineering & Rehabilitation Laboratory, Department of Biomedical Engineering, College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, China.

Objective: Collaborative brain-computer interfaces (cBCIs) can make the BCI output more credible by jointly decoding concurrent brain signals from multiple collaborators. Current cBCI systems usually require all collaborators to execute the same mental tasks (common-work strategy). However, it is still unclear whether the system performance will be improved by assigning different tasks to collaborators (division-of-work strategy) while keeping the total tasks unchanged. Read More

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Clinical Significance of the Fibrosis-4 Index in Patients with Acute Heart Failure Requiring Intensive Care.

Int Heart J 2021 Jul 17. Epub 2021 Jul 17.

Department of Cardiovascular Medicine, Nippon Medical School.

The Fibrosis-4 (FIB4) index could indicate the liver fibrosis in patients with chronic hepatic diseases. It was calculated using the following formula: (age × aspartate aminotransferase [U/L]) / (platelet count [10/μL] × √alanine aminotransferase [U/L]). However, the clinical impact of the FIB4 index in the acute phase of acute heart failure (AHF) has not been sufficiently investigated. Read More

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How to Estimate the Optimal Heart Rate in Patients with Heart Failure with Preserved Ejection Fraction.

Int Heart J 2021 Jul 17. Epub 2021 Jul 17.

Second Department of Internal Medicine, University of Toyama.

Ideal heart rate (HR), particularly for those with heart failure with preserved ejection fraction (HFpEF), remains unknown. We hypothesized that cardiac output would be maximum when the overlap between E-wave and A-wave at the trans-mitral flow is "zero" in the Doppler echocardiography. We retrospectively investigated the association among the overlap length between two waves, actual HR, and other echocardiographic parameters to construct a formula for estimating theoretically ideal HR among those with HFpEF. Read More

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The effectiveness of vigorous training on cardiorespiratory fitness in persons with spinal cord injury: a systematic review and meta-analysis.

Spinal Cord 2021 Jul 17. Epub 2021 Jul 17.

Department of Kinesiology and Community Health, College of Applied Health Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA.

Design: Systematic review and meta-analysis.

Background And Purpose: Traditional forms of upper-body moderate intensity exercise consistently provide little cardiovascular benefits for persons with spinal cord injury (PwSCI). Explorations of new training methods are vital to improve cardiovascular fitness among PwSCI. Read More

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Cardiovascular responses to low-level transcutaneous vagus nerve stimulation.

Auton Neurosci 2021 Jul 14;236:102851. Epub 2021 Jul 14.

Department of Neurology, University Medical Center Ljubljana, Zaloška c. 7, 1000 Ljubljana, Slovenia. Electronic address:

Aims: The aim was to determine cardiovascular responses to an arbitrary protocol of transcutaneous low-level vagus nerve electrical stimulation (tVNS).

Methods: Study was performed in 15 male volunteers, mean age 23 years. Data were collected during two sessions - sham stimulation (no stimulation) and stimulation. Read More

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Molar pregnancy in the last 50 years: A bibliometric analysis of global research output.

Placenta 2021 Jul 10;112:54-61. Epub 2021 Jul 10.

Department of Pharmacology and Toxicology, College of Medicine, University of the Philippines Manila, Manila, Philippines; Division of Trophoblast Diseases, Department of Obstetrics and Gynecology, University of the Philippines - Philippine General Hospital, Taft Avenue, Manila, Philippines.

Molar pregnancy is a gestational trophoblastic disease characterized by an abnormal growth of placental tissues because of a nonviable pregnancy. The understanding of the pathophysiology and management of molar pregnancy has significantly increased in the recent years. This study aims to determine the characteristics and trends of published articles in the field of molar pregnancy through a bibliometric analysis. Read More

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Enhancing hydrolysis and syntropy simultaneously in solid state anaerobic digestion: Digester performance and techno-economic evaluation.

Bioresour Technol 2021 Jul 13;338:125538. Epub 2021 Jul 13.

Centre for Energy and Environment, Malaviya National Institute of Technology Jaipur, JLN Marg, Jaipur, Rajasthan 302017, India. Electronic address:

The present study investigated the effect of alkali and biochar addition for simultaneous increment of hydrolysis and syntropy for higher methane yield from pearl millet straw (PMS) in solid state anaerobic digestion. A taguchi based design of experiment was coupled with grey relation analysis for multiple output optimization. Study showed that 0. Read More

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Cardiac Output States in Patients with Severe Functional Tricuspid Regurgitation - Impact on Treatment Success and Prognosis.

Eur J Heart Fail 2021 Jul 16. Epub 2021 Jul 16.

Dept. of Cardiology, Heart Center Leipzig at University of Leipzig, Leipzig, Germany.

Aims: To investigate whether there is evidence for distinct cardiac output (CO) based phenotypes in patients with chronic right heart failure associated with severe tricuspid regurgitation (TR) and to characterize their impact on TR treatment and outcome.

Methods And Results: A total of 132 patients underwent isolated transcatheter tricuspid valve repair (TTVR) for functional TR at two centers. Patients were clustered according to k-means clustering into low (C-1: CI<1. Read More

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Mapping the global research output on Ebola vaccine from research indexed in web of science and scopus: a comprehensive bibliometric analysis.

Hum Vaccin Immunother 2021 Jul 16:1-13. Epub 2021 Jul 16.

Centre for Health Behaviours Research, Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, China, Hong Kong.

: The Ebola Virus outbreak in Africa is believed to be one of the deadliest viral infections that causes severe hemorrhagic fever in human and nonhuman primates, which has resulted in increased mortality rates in the affected African countries. Thus, the current study mapped and quantified global research output and trends in the EBOV vaccine publications via a bibliometric analysis. Publications about the Ebola virus vaccine were extracted from the Web of Science and Scopus databases. Read More

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A rare case of vena cava leiomyoma: A case report.

Ann Card Anaesth 2021 Jul-Sep;24(3):408-410

Cardiovascular Anesthesia, Shaio Clinic, Bogotá, Colombia.

Intravascular leiomyoma is an uncommon disease and depending of vascular involvement and anesthetic challenge. We review a case of a 53-year-old woman who underwent vena cava leiomyoma resection under cardiopulmonary bypass using deep hypothermic circulatory arrest (DHCA). Invasive hemodynamic and neurologic monitoring, transesophageal echocardiography, and viscoelastic coagulation test were used during the procedure. Read More

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Childhood maltreatment disrupts HPA-axis activity under basal and stress conditions in a dose-response relationship in children and adolescents.

Psychol Med 2021 Jul 16:1-14. Epub 2021 Jul 16.

Department of Evolutionary Biology, Ecology and Environmental Sciences, Faculty of Biology, University of Barcelona, Biomedicine Institute of the University of Barcelona (IBUB), Barcelona, Spain.

Background: This study investigates the impact of childhood maltreatment (CM) on hypothalamic-pituitary-adrenal (HPA)-axis functioning and on anxiety perception. Moreover, the influence of CM severity and frequency was also explored.

Methods: In total, 187 participants aged 7-17 were assessed for CM history using validated questionnaires and ad hoc interviews to be classified according to the criteria of the Tool for Assessing the Severity of Situations in which Children are Vulnerable (TASSCV). Read More

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A Comparison of Label Switching Algorithms in the Context of Growth Mixture Models.

Educ Psychol Meas 2021 Aug 16;81(4):668-697. Epub 2020 Nov 16.

University of Maryland, College Park, MD, USA.

Simulation studies involving mixture models inevitably aggregate parameter estimates and other output across numerous replications. A primary issue that arises in these methodological investigations is label switching. The current study compares several label switching corrections that are commonly used when dealing with mixture models. Read More

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Impact of COVID-19 on Radiology Faculty - An Exacerbation of Gender Differences in Unpaid Home Duties and Professional Productivity.

Acad Radiol 2021 May 25. Epub 2021 May 25.

NYU Grossman School of Medicine, 160 East 34th St, 3rd Floor, New York, New York 10016. Electronic address:

Rationale And Objectives: The COVID-19 pandemic stresses the tenuous balance between domestic obligations and academic output for women across professions. Our investigation aims to evaluate the impact of the pandemic on the home duties and workplace productivity of academic radiologists with respect to gender.

Materials And Methods: A 49-question survey was distributed to 926 members of Association of University Radiologists in October 2020. Read More

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Combined phyto-microbial-electrochemical system enhanced the removal of petroleum hydrocarbons from soil: A profundity remediation strategy.

J Hazard Mater 2021 Jul 7;420:126592. Epub 2021 Jul 7.

MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control/College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China. Electronic address:

The soil contaminated by petroleum hydrocarbons has been a global environmental problem and its remediation is urgent. A combined phyto-microbial-electrochemical system (PMES) was constructed to repair the oil-contaminated soil in this study. During the 42-day operation time, a total petroleum hydrocarbons (TPHs) of 18. Read More

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Chronic cough is associated with increased reporting of autonomic symptoms.

ERJ Open Res 2021 Jul 12;7(3). Epub 2021 Jul 12.

Division of Infection, Immunity and Respiratory Medicine, University of Manchester, Manchester, UK.

Background: Patients with some neuronal hypersensitivity syndromes experience increased autonomic symptoms. Chronic cough is thought to be a neuronal hypersensitivity disorder and, therefore, may be associated with increased autonomic symptoms.

Methods: 96 chronic cough subjects were recruited from the tertiary cough clinic based at Wythenshawe Hospital, Manchester, UK; 76 healthy controls were also recruited. Read More

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Performance evaluation of a photosynthetic microbial fuel cell (PMFC) using Chlamydomonas reinhardtii at cathode.

Bioresour Technol 2021 Jul 6;338:125499. Epub 2021 Jul 6.

Environmental Biotechnology Laboratory, Department of Bioscience and Bioengineering, Indian Institute of Technology Jodhpur (IIT J), Jodhpur, Rajasthan 342037, India. Electronic address:

This study reports the use of Chlamydomonas reinhardtiiat the cathode in a photosynthetic microbial fuel cell (PMFC). The PMFC produced power and current density of 15.21 W m and 39 A m, respectively. Read More

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Treatment resistance in psychiatry: state of the art and new directions.

Mol Psychiatry 2021 Jul 13. Epub 2021 Jul 13.

Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.

Treatment resistance affects 20-60% of patients with psychiatric disorders; and is associated with increased healthcare burden and costs up to ten-fold higher relative to patients in general. Whilst there has been a recent increase in the proportion of psychiatric research focussing on treatment resistance (R = 0.71, p < 0. Read More

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CT Cervical Spine Fracture Detection Using a Convolutional Neural Network.

AJNR Am J Neuroradiol 2021 07 1;42(7):1341-1347. Epub 2021 Apr 1.

From the Departments of Neuroradiology (J.E.S., A.B.P., M.K.).

Background And Purpose: Multidetector CT has emerged as the standard of care imaging technique to evaluate cervical spine trauma. Our aim was to evaluate the performance of a convolutional neural network in the detection of cervical spine fractures on CT.

Materials And Methods: We evaluated C-spine, an FDA-approved convolutional neural network developed by Aidoc to detect cervical spine fractures on CT. Read More

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Understanding and Calibration of Charge Storage Mechanism in Cyclic Voltammetry Curves.

Angew Chem Int Ed Engl 2021 Jul 12. Epub 2021 Jul 12.

Wuhan University, College of Chemistry and Molecular Science, 299 Bayi Road, 430072, Wuhan, CHINA.

Noticeable pseudo-capacitance behaviour out of charge storage mechanism (CSM) has attracted intensive studies because it can provide both high energy density and large output power. Although cyclic voltammetry is recognized as the feasible electrochemical technique to determine it quantitatively in the previous works, the results are inferior due to uncertainty in the definitions and application conditions. Herein, three successive treatments, including de-polarization, de-residual and de-background, as well as a non-linear fitting algorithm are employed for the first time to calibrate the different CSM contribution of three typical cathode materials, LiFePO4, LiMn2O4 and Na4Fe3(PO4)2P2O7, and achieve well-separated physical capacitance, pseudo-capacitance and diffusive contributions to the total capacity. Read More

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Outsourcing robotic-assisted operations to private hospitals: Cost analysis of a retrospective cohort.

ANZ J Surg 2021 Jul 12. Epub 2021 Jul 12.

Division of Surgical Specialties and Anaesthetics, Lyell McEwin Hospital, Elizabeth Vale, South Australia, Australia.

Background: The Lyell McEwin Hospital entered into a public-private collaborative agreement in 2019 in order to access Da Vinci® Xi Surgical Systems (Intuitive Surgical, Sunnyvale, CA, USA) in private hospitals. This study aimed to examine the costs associated with usage of robot surgical systems under the agreement, and the potential for acquisition in the public hospital.

Methods: Retrospective data on robotic-assisted and equivalent operations performed between 1 May 2019 and 30 April 2020 were collected and formed subsequent model inputs. Read More

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Endoparasitic plants and fungi show evolutionary convergence across phylogenetic divisions.

New Phytol 2021 Jul 12. Epub 2021 Jul 12.

University of Oxford Botanic Garden, Rose Lane, Oxford, OX1 4AZ, UK.

Endoparasitic plants are the most reduced flowering plants, spending most of their lives as a network of filaments within the tissues of their hosts. Despite their extraordinary life form, we know little about their biology. Research into a few species has revealed unexpected insights, such as the total loss of plastome, the reduction of the vegetative phase to a proembryonic stage, and elevated information exchange between host and parasite. Read More

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Visibility-graphlet approach to the output series of a Hodgkin-Huxley neuron.

Chaos 2021 Apr;31(4):043102

Business School, University of Shanghai for Science and Technology, Shanghai 200093, People's Republic of China.

The output signals of neurons that are exposed to external stimuli are of great importance for brain functionality. Traditional time-series analysis methods have provided encouraging results; however, the associated patterns and their correlations in the output signals of neurons are masked by statistical procedures. Here, graphlets are employed to extract the local temporal patterns and the transitions between them from the output signals when neurons are exposed to external stimuli with selected stimulating periods. Read More

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