scholarly journals Diagnosis of SARS-CoV-2 and innovative alternative methods based on optic fiber.

2021 ◽  
Vol 23 (2) ◽  
pp. e20710484
Author(s):  
Maria Julia Nieto Callejas ◽  
Walter D Cardona-Maya ◽  
César A. Isaza-Merino ◽  
Yamile Yamile Cardona-Maya
Keyword(s):  
Clinical Diagnosis ◽  
Fiber Optic ◽  
Diagnostic Methods ◽  
Alternative Methods ◽  
Optic Fiber ◽  
Clinical Laboratories ◽  
Technological Advances ◽  
Fiber Optic Technology

This work shows a world overview of the SARS-CoV-2 diagnostic methods, analyzing their effectiveness and sensitivity. With a special emphasis on biosensors, specifically, those that are based on fiber-optic technology, explaining simply their operation and their ability to detect diseases such as SARS-CoV-2. With these technological advances, the clinical diagnosis will be made: faster, cheaper, and applied to patients in remote places where there are no hospitals or clinical laboratories, either due to poverty, geographic difficulties, or violence, factors found in Colombia.

Fiber Optic Technology for Reservoir Surveillance

2011 ◽  
Author(s):  
Johannes V. Vianney Koelman ◽  
Jorge L. Lopez ◽  
Hans Potters
Keyword(s):  
Fiber Optic ◽  
Fiber Optic Technology

A Survey of New Technologies Used by Siemens Energy for the Monitoring and Diagnosis of a Global Fleet of Power Generation Systems

2009 ◽  
Author(s):  
Kurt Plotts ◽  
Evangelos Diatzikis
Keyword(s):  
Power Generation ◽  
New Technologies ◽  
Fiber Optic ◽  
Systems Design ◽  
Diagnostic Methods ◽  
Plant Performance ◽  
Blade Vibration ◽  
Engineering Knowledge ◽  
Design And Implementation ◽  
Power Generation Systems

Siemens has been on the cutting edge of the power generation business for over a century and has been providing diagnostics systems design and implementation since the early 1980s. Siemens Power Diagnostics® Services is designed to maximize plant performance, availability and profitability. Engineering knowledge, combined with the use of sophisticated tools, provides trending and analysis capabilities to address a broad range of operating needs specific to each customer. The goal of Power Diagnostics® is to enhance Siemens assistance to our customers through the detection of impending operational problems thereby helping to minimize unplanned outages and maximize power generation availability. A variety of new technologies are being harnessed to further this goal. A survey and discussion of these technologies will be the goal of this paper. Some of the projects discussed will be; Advances in the Power Plant Automated Diagnostics Systems, Blade Vibration Monitor (BVM), Fiber Optic Vibration Monitor (FOVM), and the Radio Frequency Monitor (RFM). The development and verification phases of research projects have often been conducted at customer sites. Many aspects of these technologies are new and will be of interest to gas turbine engineers as they are not widely applied yet. It is hoped that the reader will gain a new appreciation for the scope of modern diagnostic methods for power generation systems.

Reversible sensor for carbon monoxide based on dye-doped porous fiber optic fiber

1993 ◽  
Author(s):  
Robert A. Lieberman ◽  
Douglas J. Ferrell ◽  
Edward M. Schmidlin ◽  
Steven J. Syracuse ◽  
Albert N. Khalil ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Fiber Optic ◽  
Optic Fiber ◽  
Porous Fiber

scholarly journals Meningococcal Meningitis: A Multicentric Hospital-based Study in Kathmandu, Nepal

2019 ◽  
Vol 13 (1) ◽  
pp. 273-278 ◽  
Author(s):  
Supriya Sharma ◽  
Jyoti Acharya ◽  
Dominique A. Caugant ◽  
Jeewan Thapa ◽  
Manju Bajracharya ◽  
...  
Keyword(s):  
Bacterial Pathogen ◽  
Meningococcal Meningitis ◽  
Diagnostic Methods ◽  
Alternative Methods ◽  
Diffusion Method ◽  
Cross Sectional ◽  
Gram Staining ◽  
Global Epidemiology ◽  
Two Samples ◽  
Referral Hospitals

Background: The global epidemiology of meningococcal disease varies markedly by region and over time. In Nepal, information on serogroup of meningococci is not available since the 1983 serogroup A epidemic in Kathmandu. Objective: To provide some fundamental data on the circulating serogroups of meningococci for potential meningococcal immunization programs in Nepal. Methods: This cross-sectional prospective study was conducted from January 2017 to December 2018 among 387 clinically suspected meningitis cases. Cerebrospinal fluid samples were collected by lumbar puncture technique at five referral hospitals of Kathmandu and processed by conventional cultural techniques. Neisseria meningitidis was identified by colony morphology, Gram staining and oxidase test. Serogrouping of meningococci was performed by slide agglutination test. Antibiotic susceptibility testing was done by the modified Kirby Bauer disc diffusion method. The data was entered into IBM SPSS Statistics 21 software and a p-value of <0.05 was considered significant. Results: Thirty-two samples were positive by culture for a bacterial pathogen with 2.3% of meningococci. All except one meningococcal meningitis cases were aged below 15 years. All N.meningitidis isolates belonged to serogroup A and were susceptible to ceftriaxone, chloramphenicol, meropenem and minocycline; however, 22% isolates showed resistance to cotrimoxazole and 11% intermediate resistance to ciprofloxacin. Conclusion: The circulating serogroup of N. meningitidis in Kathmandu has not changed over the past 35 years. The prevalence of meningococcal meningitis in Kathmandu is low but might be underestimated due to the sole use of culture-based diagnostic methods. Detection of meningococci by alternative methods may be useful in the precise estimation of actual disease burden.

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