84,411 results match your criteria cost equipment

Development and validation of an in-house, low-cost SARS-CoV-2 detection assay.

J Infect Public Health 2021 Jul 15;14(9):1139-1143. Epub 2021 Jul 15.

Department of Infection and Immunity, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia.

Background: One major challenge for detecting the virus that causes COVID-19 is commercial SARS-CoV-2 testing kit or reagent availability. To allow every laboratory or hospital access to an in-house assay, we developed a low-cost SARS-CoV-2 detection assay protocol using in-house primers and reagents/equipment on hand in most biology or diagnostic laboratories: a SYBR Green-based RT-PCR. RNA extraction has also become a major bottleneck due to limited supplies and the required labor. Read More

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Long-term culture of SH-SY5Y neuroblastoma cells in the absence of neurotrophins: a novel model of neuronal ageing.

J Neurosci Methods 2021 Jul 31:109301. Epub 2021 Jul 31.

Bute Building, School of Psychology and Neuroscience, University of St Andrews, West Burn Lane, St Andrews, Fife KY16 9TS. Electronic address:

Background: Studying human ageing is of increasing importance due to the worldwide ageing population. However, it faces the challenge of lengthy experiments to produce an ageing phenotype. Often, to recreate the hallmarks of ageing requires complex empirical conditions that can confound data interpretation. Read More

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Fully Printed High-Performance n-Type Metal Oxide Thin-Film Transistors Utilizing Coffee-Ring Effect.

Nanomicro Lett 2021 Aug 3;13(1):164. Epub 2021 Aug 3.

Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou, 310024, China.

Metal oxide thin-films transistors (TFTs) produced from solution-based printing techniques can lead to large-area electronics with low cost. However, the performance of current printed devices is inferior to those from vacuum-based methods due to poor film uniformity induced by the "coffee-ring" effect. Here, we report a novel approach to print high-performance indium tin oxide (ITO)-based TFTs and logic inverters by taking advantage of such notorious effect. Read More

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Interpretation of trial-based economic evaluations of musculoskeletal physical therapy interventions.

Braz J Phys Ther 2021 Jul 21. Epub 2021 Jul 21.

Department of Health Sciences, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam Public Health, Amsterdam, The Netherlands.

Background: As resources for healthcare are scarce, decision-makers increasingly rely on economic evaluations when making reimbursement decisions about new health technologies, such as drugs, procedures, devices, and equipment. Economic evaluations compare the costs and effects of two or more interventions. Musculoskeletal disorders have a high prevalence and result in high levels of disability and high costs worldwide. Read More

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A compact narrow-width combined antenna for the radiation of the UWB electromagnetic pulses.

Rev Sci Instrum 2021 Jul;92(7):074701

State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.

In this article, a Narrow-Width Combined Antenna (NWCA) is proposed for the compact design of high-power ultra-wideband (UWB) systems. The dependence of performances on three dimensions of the combined antenna is investigated so as to minimize its size with a given excitation. It indicates that the working process of the combined antenna can be divided into two stages: (1) energy transmitted from the feeding point to the aperture by the TEM horn structure, and during this stage, the passband is determined by the effect of the impedance taper, which is related to the length and aperture impedance of the antenna, and (2) energy radiated to the free space from the aperture, during which the height of the aperture is the dominant factor. Read More

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[Role of Robotic Surgery in ENT].

Wien Med Wochenschr 2021 Aug 2. Epub 2021 Aug 2.

Abteilung für HNO und Phoniatrie, Krankenhaus der Barmherzigen Brüder Wien, Johannes-von-Gott-Platz 1, 1020, Wien, Österreich.

Since the beginning of the 21 century, surgical robots have been used in the ENT-environment. They primarily support surgeons in minimal invasive transoral operations, especially in multidisciplinary treatment concepts of head and neck tumors, but also in snoring surgery the robot provides a complement to the established transoral laser surgery. In the meantime there is a large number of data that deals with the importance of oncological results, function maintenance, economics and future perspectives. Read More

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Patient preferences for use of virtual consultations in an orthopaedic rehabilitation setting: Results from a discrete choice experiment.

J Health Serv Res Policy 2021 Aug 1:13558196211035427. Epub 2021 Aug 1.

Principal Research Fellow in Health Economics, School of Health Sciences, 7423University of Southampton, University of Southampton, UK.

Objective: Virtual Consultations may reduce the need for face-to-face outpatient appointments, thereby potentially reducing the cost and time involved in delivering health care. This study reports a discrete choice experiment (DCE) that identifies factors that influence patient preferences for virtual consultations in an orthopaedic rehabilitation setting.

Methods: Previous research from the CONNECT (Care in Orthopaedics, burdeN of treatmeNt and the Effect of Communication Technology) Project and best practice guidance informed the development of our DCE. Read More

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Radiogenomics of gastroenterological cancer: The dawn of personalized medicine with artificial intelligence-based image analysis.

Ann Gastroenterol Surg 2021 Jul 1;5(4):427-435. Epub 2021 Feb 1.

Department of Diagnostic Radiology and Radiation Oncology Graduate School of Medicine Chiba University Chiba Japan.

Radiogenomics is a new field of medical science that integrates two omics, radiomics and genomics, and may bring a major paradigm shift in traditional personalized medicine strategies that require tumor tissue samples. In addition, the acquisition of the data does not require special imaging equipment or special imaging conditions, and it is possible to use image information from computed tomography, magnetic resonance imaging, positron emission tomography-computed tomography in clinical practice, so the versatility and cost-effectiveness of radiogenomics are expected. So far, the field of radiogenomics has developed, especially in the fields of brain tumors and breast cancer, but recently, reports of radiogenomic research on gastroenterological cancer are increasing. Read More

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Sensitive determination of gentamicin in plasma using ion-exchange solid-phase extraction followed by UHPLC-MS/MS analysis.

Pract Lab Med 2021 Aug 16;26:e00246. Epub 2021 Jul 16.

Analytical Toxicology Laboratory, Universidade Feevale, Novo Hamburgo, RS, Brazil.

Background: Therapeutic drug monitoring (TDM) of gentamicin sulfate (GEN) is usually recommended, particularly in critical patients. Only a few reports had described the determination of GEN in plasma or plasma using LC-MS/MS.

Objective: This study aimed to develop and validate a sensitive ultra-high-performance liquid chromatography coupled to tandem mass spectrometry (UHPLC-MS/MS) assay for the quantification of GEN in small volumes of human plasma. Read More

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Using infrared geostationary remote sensing to determine particulate matter ground-level composition and concentration.

M Sowden D Blake

Air Qual Atmos Health 2021 Jul 28:1-10. Epub 2021 Jul 28.

Centre for Ecosystem Management, School of Science, Edith Cowan University, Joondalup, WA Australia.

Speciated ground-level aerosol concentrations are required to understand and mitigate health impacts from dust storms, wildfires, and other aerosol emissions. Globally, surface monitoring is limited due to cost and infrastructure demands. While remote sensing can help estimate respirable (i. Read More

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Impact of the Stress Status of Employees on the Enterprise Technology Management Cost Through Matter-Element Analysis Under Psychological Health Education.

Front Psychol 2021 16;12:593813. Epub 2021 Jul 16.

School of Law, Chongqing University, Chongqing, China.

In this study, in order to analyze the stress sources and stress-coping strategies of employees in construction enterprises, to explore the influencing factors of enterprise technical management cost, and to offer suggestions for mental health education of employees, 372 employees of Shandong Construction Engineering Group Co., Ltd. were selected for a questionnaire survey. Read More

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Removal of fluoride using platanus acerifoli leaves biochar--an efficient and low-cost application in wastewater treatment.

Environ Technol 2021 Aug 2:1-43. Epub 2021 Aug 2.

Shandong Dongyuan New Material Technology Co., Ltd., Dongying, 257300, Shandong, China.

The fluoride with high-concentration in industrial wastewater will cause great harm to the environment and calcium modified biochar is an effective adsorbent for the removal of fluoride. Biochar composites were prepared from mature and dried dead leaves and eggshell to remove fluoride from the aqueous solution. The effects of raw material ratio, pH, contact time, adsorbent dosage, temperature, initial concentration of fluoride, and the coexisting ions on the removal efficiency of fluoride were explored. Read More

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Simultaneous biogas upgrading, CO sequestration, and biogas slurry decrement using biomass ash.

Waste Manag 2021 Jul 29;133:1-9. Epub 2021 Jul 29.

College of Engineering, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River, Ministry of Agriculture and Rural Affairs, Wuhan 430070, PR China. Electronic address:

A novel system for simultaneous biogas upgrading, CO sequestration, and biogas slurry decrement was established by adding biomass ash into biogas slurry to form a renewable CO mixture absorbent. After CO saturation, the CO-rich mixture absorbent could be applied for plant growth. When the mass ratio of liquid to solid was 4:1, CO absorption capacity of this mixture absorbent reached up to 97. Read More

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Hypnosis as sole anesthesia for oral surgery: The egg of Columbus.

J Am Dent Assoc 2021 Jul 28. Epub 2021 Jul 28.

Background And Overview: Hypnosis, despite its effectiveness, has been neglected. The aim of this study is to show the effectiveness and manageability of hypnosis as a stand-alone technique in dentistry.

Case Description: Three patients underwent 6 oral surgery procedures (surgical third-molar removal, implant surgery, maxillary bone augmentation, and mucogingival surgery) with hypnosis as the only anesthetic. Read More

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Exploring the relationship between economic growth, energy consumption, urbanization, trade, and CO emissions: a PMG-ARDL panel data analysis on regional classification along 81 BRI economies.

Environ Sci Pollut Res Int 2021 Jul 31. Epub 2021 Jul 31.

National Commission for Tertiary Education, Accra, Ghana.

The vision of every country or sub-regions is to achieve sustainable economic growth. The inability of individual countries to have a sole sustainable initiative has resulted in the establishment of economic cooperation such as the Belt and Road Initiative (BRI), which renders interaction among 138 relevant countries to increase economic development. This study delves into the determinants of economic growth along the BRI economic corridors, taking into consideration regional classification of the relevant countries. Read More

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A benchmarking study of home enteral nutrition services.

Clin Nutr ESPEN 2021 Aug 26;44:387-396. Epub 2021 May 26.

Nutrition Department, Alfred Health, Melbourne, Victoria, Australia; Department of Medicine, Central Clinical School, Monash University, Melbourne, Victoria, Australia; Department of Rehabilitation, Nutrition and Sport, La Trobe University, Bundoora, Victoria, Australia.

Background & Aims: Patients receiving home enteral nutrition (HEN) via an enteral feeding tube often have complex healthcare requirements. There is limited information regarding how HEN care is provided within Australia and New Zealand. This study aimed to investigate the characteristics of HEN services and the provision of nutrition care to individuals receiving HEN within Australia and New Zealand. Read More

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An easy-fabricated and disposable polymer-film microfluidic impedance cytometer for cell sensing.

Anal Chim Acta 2021 Aug 14;1175:338759. Epub 2021 Jun 14.

School of Mechanical Engineering, And Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China. Electronic address:

We report here an easy-fabricated and disposable polymer-film microfluidic impedance cytometer (PMIC) integrated with inertial focusing and parallel facing electrodes for cell sensing. The cells are first focused in an asymmetric serpentine channel, and then their impedance signals are measured when passing through the electrode region. The proposed PMIC device is the first impedance cytometer that is fabricated into a flexible sheet (with a thickness of 0. Read More

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"Barcode" cell sensor microfluidic system: Rapid and sample-to-answer antimicrobial susceptibility testing applicable in resource-limited conditions.

Biosens Bioelectron 2021 Jul 21;192:113516. Epub 2021 Jul 21.

Department of Chemistry, Hong Kong Baptist University. Waterloo Road, Kowloon, Hong Kong, China; HKBU Institute of Research and Continuing Education, Shenzhen, China; State Key Laboratory of Environmental and Biological Analysis, The Hong Kong Baptist University, Waterloo Road, Kowloon, Hong Kong, China. Electronic address:

Many rapid antimicrobial susceptibility testing (AST) methods have been proposed to contain clinical antimicrobial resistance (AMR) and preserve the effectiveness of remaining antimicrobials. However, far fewer methods have been proposed to test AMR in resource-limited conditions, such as for frequent safety screenings of water/food/public facilities, urgent surveys of massive samples during a pandemic, or AMR tests in low-income countries. Rapid AST methods realized thus far have a variety of drawbacks when used for such surveys, e. Read More

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The economic burden of colorectal cancer across Europe: a population-based cost-of-illness study.

Lancet Gastroenterol Hepatol 2021 Jul 27. Epub 2021 Jul 27.

Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, UK.

Background: Colorectal cancer is one of the leading causes of cancer morbidity and mortality in Europe. We aimed to ascertain the economic burden of colorectal cancer across Europe using a population-based cost-of-illness approach.

Methods: In this population-based cost-of-illness study, we obtained 2015 activity and costing data for colorectal cancer in 33 European countries (EUR-33) from global and national sources. Read More

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Exploring a pathway to carbon neutrality via reinforcing environmental performance through green process innovation, environmental orientation and green competitive advantage.

J Environ Manage 2021 Jul 26;296:113383. Epub 2021 Jul 26.

Chief of Research Division, CAREC Institute, Urumqi China. Electronic address:

In the light of The Paris Agreement (COP 21), global leaders reached a consensus to curtail the increase in global temperature up to 2.0 °C ideally 1.5 °C pre-industrial level. Read More

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Evaluation of RNA Extraction-Free Method for Detection of SARS-CoV-2 in Salivary Samples for Mass Screening for COVID-19.

Biomed Res Int 2021 29;2021:5568350. Epub 2021 Jun 29.

G42 Health Care, Abu Dhabi, UAE.

In this COVID-19 pandemic, there is a dire need for cost-effective and less time-consuming alternatives for SARS-CoV-2 testing. The RNA extraction-free method for detecting SARS-CoV-2 in saliva is a promising option. This study found that it has high sensitivity (85. Read More

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Cost of vaccine delivery strategies in low- and middle-income countries during the COVID-19 pandemic.

Vaccine 2021 Jun 29. Epub 2021 Jun 29.

Center for Health Decision Science, Harvard T.H. Chan School of Public Health, United States.

Background: The COVID-19 pandemic has disrupted immunization services critical to the prevention of vaccine-preventable diseases in many low- and middle- income countries around the world. These services will need to be modified in order to minimize COVID-19 transmission and ensure the safety of health workers and the community. Additional budget will be required to implement these modifications that ensure safe delivery. Read More

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Oral Misoprostol alone versus oral misoprostol followed by oxytocin for labour induction in women with hypertension in pregnancy (MOLI): protocol for a randomised controlled trial.

BMC Pregnancy Childbirth 2021 Jul 29;21(1):537. Epub 2021 Jul 29.

Department of Women's and Children's Health, Liverpool Women's Hospital, University of Liverpool, Crown Street, Liverpool, L8 7SS, UK.

Background: Every year approximately 30,000 women die from hypertensive disease in pregnancy. Magnesium sulphate and anti-hypertensives reduce morbidity, but delivery is the only cure. Low dose oral misoprostol, a prostaglandin E1 analogue, is a highly effective method for labour induction. Read More

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Using diaminofluoresceins (DAFs) in nitric oxide research.

Nitric Oxide 2021 Jul 26. Epub 2021 Jul 26.

Myocardial Infarction Research Group, Department of Cardiology, Pulmonology and Angiology Medical Faculty, Heinrich Heine University of Düsseldorf, Düsseldorf, Germany. Electronic address:

Diaminofluoresceins are fluorescent probes widely applied to measure nitric oxide (NO) formation in cells and tissues. The main advantages of these compounds are their availability and low cost, and the general availability of instruments able to detect green fluorescence in all laboratories; these include fluorimeters, flow cytometers, and fluorescent microscopes. What made these molecules particularly interesting for many scientists approaching the NO field is that they are apparently very easy to use, as compared with other techniques requiring specific instrumentation and knowledge like chemiluminescence and electron paramagnetic resonance. Read More

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Supporting scale-up of COVID-19 RT-PCR testing processes with discrete event simulation.

PLoS One 2021 29;16(7):e0255214. Epub 2021 Jul 29.

Department of Engineering Management and Systems Engineering, George Washington University, Washington, DC, United States of America.

Testing is critical to mitigating the COVID-19 pandemic, but testing capacity has fallen short of the need in the United States and elsewhere, and long wait times have impeded rapid isolation of cases. Operational challenges such as supply problems and personnel shortages have led to these bottlenecks and inhibited the scale-up of testing to needed levels. This paper uses operational simulations to facilitate rapid scale-up of testing capacity during this public health emergency. Read More

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The challenge of prostate biopsy guidance in the era of mpMRI detected lesion: ultrasound-guided versus in-bore biopsy.

Br J Radiol 2021 Jul 29:20210363. Epub 2021 Jul 29.

Department of Urology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands.

The current recommendation in patients with a clinical suspicion for prostate cancer is to perform systematic biopsies extended with targeted biopsies, depending on mpMRI results. Following a positive mpMRI [i.e. Read More

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Positioning Error Limit for the Last Droplet Deposition into a Microcavity in the Manufacture of Printed OLEDs.

Langmuir 2021 Jul 29. Epub 2021 Jul 29.

State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, 430074 Wuhan, People's Republic of China.

In the manufacture of the emissive layer and the encapsulation layer of organic light-emitting diode panels, inkjet printing has the advantages of high material utilization, low cost, flexibility in patterning, and large-area production. Especially for emissive layer printing, the micro-pixel array brings a higher requirement of droplet positioning accuracy and volume of the liquid in a pixel. To achieve a uniform deposit morphology, several droplets are usually needed in the inkjet printing of emissive layers. Read More

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Efficient and Facile Method of Preparing Superamphiphobic Surfaces on Cu Substrates.

ACS Appl Mater Interfaces 2021 Jul 29. Epub 2021 Jul 29.

College of Mechanical and Control Engineering, Guilin University of Technology, Guilin 541004, China.

Nowadays, scalable manufacturing of superamphiphobic surfaces by a simple and efficient method remains challenging. Herein, we developed a facile and efficient strategy for constructing superamphiphobic surfaces on Cu substrates, including press molding, oxidation, and fluorination modification. The prepared superamphiphobic surface not only has repellency and low viscosity to water, ethylene glycol, and 30% ethanol (surface tension: 33. Read More

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Implementation of whole genome sequencing for tuberculosis diagnostics in a low-middle income, high MDR-TB burden country.

Sci Rep 2021 Jul 28;11(1):15333. Epub 2021 Jul 28.

Institute of Microbiology and Laboratory Medicine, Department IML Red GmbH, WHO - Supranational Tuberculosis Reference Laboratory Munich-Gauting, Robert Koch-Allee 2, 82131, Gauting, Germany.

Whole genome sequencing (WGS) is revolutionary for diagnostics of TB and its mutations associated with drug-resistances, but its uptake in low- and middle-income countries is hindered by concerns of implementation feasibility. Here, we provide a proof of concept for its successful implementation in such a setting. WGS was implemented in the Kyrgyz Republic. Read More

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Insights into enhanced polyhydroxyalkanoate production by the synergistic use of waste wood hydrolysate and volatile fatty acids by mixed microbial cultures.

Bioresour Technol 2021 Oct 2;337:125488. Epub 2021 Jul 2.

College of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, PR China.

The feasibility of producing polyhydroxyalkanoate (PHA) from pretreated waste wood hydrolysate and volatile fatty acids (VFAs) from sewage fermented products as co-substrate feedstock through mixed microbial cultures (MMCs) process was explored. The results showed that the addition of co-substrate shortened the cycle of PHA reaching the maximum and increased the proportion of 3-hydroxyvalerate (3HV) monomer. Compared with N-excess supply, almost 1. Read More

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October 2021