Spectraplot: A PC-based spectrum translation and display program

Many labs today wish to transfer data between their EDS systems and their existing PCs and minicomputers. Our lab has implemented SpectraPlot, a low- cost PC-based system to allow offline examination and plotting of spectra. We adopted this system in order to make more efficient use of our microscopes and EDS consoles, to provide hardcopy output for an older EDS system, and to allow students to access their data after leaving the university.As shown in Fig. 1, we have three EDS systems (one of which is located in another building) which can store data on 8 inch RT-11 floppy disks. We transfer data from these systems to a DEC MINC computer using “SneakerNet”, which consists of putting on a pair of sneakers and running down the hall. We then use the Hermit file transfer program to download the data files with error checking from the MINC to the PC.

Use of Spinal Anaesthesia in Neonates and Infants in Antananarivo, Madagascar: A Retrospective Descriptive Study

10.21203/rs.3.rs-33908/v5 ◽

2020 ◽

Author(s):

Harifetra Mamy Richard Randriamizao ◽

Aurelia Rakotondrainibe ◽

Lova Dany Ella Razafindrabekoto ◽

Prisca Funken Ravoaviarivelo ◽

Andriambelo Tovohery Rajaonera ◽

...

Keyword(s):

Spinal Anesthesia ◽

Low Cost ◽

Perioperative Period ◽

University Hospital ◽

Hyperbaric Bupivacaine ◽

Data Files ◽

Male Sex ◽

Neonates And Infants ◽

The University ◽

Abstract Objective: The aim of this study was to present the first cases of spinal anesthesia, in newborns and infants, preterm / ex-prematures, in order to determine its feasibility and its potential harmlessness, in Antananarivo – Madagascar. Indeed, spinal anesthesia is a low cost technique and can limit respiratory complications, postoperative apnea a contrario with pediatric general anesthesia which can lead to perioperative risks.Results: In a retrospective, descriptive, seven-year (2013 to 2019) period study, conducted in the University Hospital Joseph Ravoahangy Andrianavalona, 69 patients’ data files planned to have spinal anesthesia were recorded. These pediatric patients were predominantly male (sex ratio = 2.8) and 37 [28 - 52] days old. The smallest anesthetized child weighed 880g; the youngest was 4 days old. Twenty-seven (27) of them were premature and 20.3% presented respiratory diseases. They were mostly scheduled for hernia repair (90%). Spinal anesthesia was performed, with a Gauge 25 Quincke spinal needle, after 2 [1 - 2] attempts with hyperbaric bupivacaine of 4 [3.5 - 4] mg. Failure rate was 5.8%. The heart rate was stable throughout perioperative period and no complications were observed.

Use of spinal anaesthesia in neonates and infants in Antananarivo, Madagascar: a retrospective descriptive study

BMC Research Notes ◽

10.1186/s13104-020-05330-9 ◽

2020 ◽

Vol 13 (1) ◽

Author(s):

Harifetra M. R. Randriamizao ◽

Aurélia Rakotondrainibe ◽

Lova D. E. Razafindrabekoto ◽

Prisca F. Ravoaviarivelo ◽

Andriambelo T. Rajaonera ◽

...

Keyword(s):

Spinal Anesthesia ◽

Low Cost ◽

Perioperative Period ◽

University Hospital ◽

Hyperbaric Bupivacaine ◽

Data Files ◽

Male Sex ◽

Neonates And Infants ◽

The University ◽

Abstract Objective The aim of this study was to present the first cases of spinal anesthesia, in newborns and infants, preterm/ex-prematures, in order to determine its feasibility and its potential harmlessness, in Antananarivo—Madagascar. Indeed, spinal anesthesia is a low cost technique and can limit respiratory complications, postoperative apnea a contrario with pediatric general anesthesia which can lead to perioperative risks. Results In a retrospective, descriptive, 7-year (2013 to 2019) period study, conducted in the University Hospital Joseph Ravoahangy Andrianavalona, 69 patients’ data files planned to have spinal anesthesia were recorded. These pediatric patients were predominantly male (sex ratio = 2.8) and 37 [28–52] days old. The smallest anesthetized child weighed 880 g; the youngest was 4 days old. Twenty-seven (27) of them were premature and 20.3% presented respiratory diseases. They were mostly scheduled for hernia repair (90%). Spinal anesthesia was performed, with a Gauge 25 Quincke spinal needle, after 2 [1–2] attempts with hyperbaric bupivacaine of 4 [3.5–4] mg. Failure rate was 5.8%. The heart rate was stable throughout perioperative period and no complications were observed.

Use of Spinal Anaesthesia In Neonates And Infants In Antananarivo, Madagascar: A Retrospective Descriptive Study

10.21203/rs.3.rs-33908/v3 ◽

2020 ◽

Author(s):

Harifetra Mamy Richard Randriamizao ◽

Aurelia Rakotondrainibe ◽

Lova Dany Ella Razafindrabekoto ◽

Prisca Funken Ravoaviarivelo ◽

Andriambelo Tovohery Rajaonera ◽

...

Keyword(s):

Spinal Anesthesia ◽

Low Cost ◽

Perioperative Period ◽

University Hospital ◽

Hyperbaric Bupivacaine ◽

Data Files ◽

Male Sex ◽

Neonates And Infants ◽

The University ◽

Abstract Objective: The aim of this study was to present the first cases of spinal anesthesia, in newborns and infants, preterm / ex-prematures, in order to determine its feasibility and its potential harmlessness, in Antananarivo – Madagascar. Indeed, spinal anesthesia is a low cost technique and can limit respiratory complications, postoperative apnea a contrario with pediatric general anesthesia which can lead to perioperative risks. Results: In a retrospective, descriptive, seven-year (2013 to 2019) period study, conducted in the University Hospital Joseph Ravoahangy Andrianavalona, 69 patients’ data files planned to have spinal anesthesia were recorded. These pediatric patients were predominantly male (sex ratio = 2.8) and 37 [28 - 52] days old. The smallest anesthetized child weighed 880g; the youngest was 4 days old. Twenty-seven (27) of them were premature and 20.3% presented respiratory diseases. They were mostly scheduled for hernia repair (90%). Spinal anesthesia was performed, with a Gauge 25 Quincke spinal needle, after 2 [1 - 2] attempts with hyperbaric bupivacaine of 4 [3.5 - 4] mg. Failure rate was 5.8%. The heart rate was stable throughout perioperative period and no complications were observed.

Use Of Spinal Anaesthesia In Neonates And Infants In Antananarivo, Madagascar: A Retrospective Descriptive Study

10.21203/rs.3.rs-33908/v6 ◽

2020 ◽

Author(s):

Harifetra Mamy Richard Randriamizao ◽

Aurelia Rakotondrainibe ◽

Lova Dany Ella Razafindrabekoto ◽

Prisca Funken Ravoaviarivelo ◽

Andriambelo Tovohery Rajaonera ◽

...

Keyword(s):

Spinal Anesthesia ◽

Low Cost ◽

Perioperative Period ◽

University Hospital ◽

Hyperbaric Bupivacaine ◽

Data Files ◽

Male Sex ◽

Neonates And Infants ◽

The University ◽

Abstract Objective : The aim of this study was to present the first cases of spinal anesthesia, in newborns and infants, preterm / ex-prematures, in order to determine its feasibility and its potential harmlessness, in Antananarivo – Madagascar. Indeed, spinal anesthesia is a low cost technique and can limit respiratory complications, postoperative apnea a contrario with pediatric general anesthesia which can lead to perioperative risks. Results : In a retrospective, descriptive, seven-year (2013 to 2019) period study, conducted in the University Hospital Joseph Ravoahangy Andrianavalona, 69 patients’ data files planned to have spinal anesthesia were recorded. These pediatric patients were predominantly male (sex ratio = 2.8) and 37 [28 - 52] days old. The smallest anesthetized child weighed 880g; the youngest was 4 days old. Twenty-seven (27) of them were premature and 20.3% presented respiratory diseases. They were mostly scheduled for hernia repair (90%). Spinal anesthesia was performed, with a Gauge 25 Quincke spinal needle, after 2 [1 - 2] attempts with hyperbaric bupivacaine of 4 [3.5 - 4] mg. Failure rate was 5.8%. The heart rate was stable throughout perioperative period and no complications were observed.

First Realizations of Spinal Anesthesia in Neonates and Infants - Preterms or Ex prematures - in Antananarivo, Madagascar

10.21203/rs.3.rs-33908/v1 ◽

2020 ◽

Author(s):

Harifetra Mamy Richard Randriamizao ◽

Aurelia Rakotondrainibe ◽

Lova Dany Ella Razafindrabekoto ◽

Prisca Funken Ravoaviarivelo ◽

Andriambelo Tovohery Rajaonera ◽

...

Keyword(s):

General Anesthesia ◽

Spinal Anesthesia ◽

Pediatric Patients ◽

Low Cost ◽

Perioperative Period ◽

University Hospital ◽

Hyperbaric Bupivacaine ◽

Data Files ◽

Neonates And Infants ◽

Abstract Objective: The aim of this study was to describe the first realizations of spinal anesthesia in neonates and infants (preterms or ex prematures) in Antananarivo - Madagascar, because spinal anesthesia – a low cost technique – can limit respiratory complications and postoperative apnea and also general anesthesia can present perioperative risks for pediatric patients.Results: In a retrospective, descriptive, seven-year (2013 to 2019) period study, conducted in the University Hospital Joseph Ravoahangy Andrianavalona, data files of 69 babies planned to have spinal anesthesia were recorded. These pediatric patients were predominantly male (sex ratio = 2.8) and 37 [28 - 52] days old. The smallest anesthetized child weighed 880 g; the youngest was 4 days old. Twenty-seven (27) of them were premature and 20.3% presented respiratory diseases. They were mostly scheduled for hernia repair (97.1%). Spinal anesthesia was performed, with a Gauge 25 Quincke spinal needle, after 2 [1 - 2] attempts with hyperbaric bupivacaine of 4 [3.5 - 4] mg. Failure rate was 5.8% needing general anesthesia conversion. The heart rate was stable throughout perioperative period and no complications were observed.

Use Of Spinal Anaesthesia In Neonates And Infants In Antananarivo, Madagascar: A Retrospective Descriptive Study

10.21203/rs.3.rs-33908/v4 ◽

2020 ◽

Author(s):

Harifetra Mamy Richard Randriamizao ◽

Aurelia Rakotondrainibe ◽

Lova Dany Ella Razafindrabekoto ◽

Prisca Funken Ravoaviarivelo ◽

Andriambelo Tovohery Rajaonera ◽

...

Keyword(s):

Spinal Anesthesia ◽

Low Cost ◽

Perioperative Period ◽

University Hospital ◽

Hyperbaric Bupivacaine ◽

Data Files ◽

Male Sex ◽

Neonates And Infants ◽

The University ◽

Abstract Objective: The aim of this study was to present the first cases of spinal anesthesia, in newborns and infants, preterm / ex-prematures, in order to determine its feasibility and its potential harmlessness, in Antananarivo – Madagascar. Indeed, spinal anesthesia is a low cost technique and can limit respiratory complications, postoperative apnea a contrario with pediatric general anesthesia which can lead to perioperative risks. Results: In a retrospective, descriptive, seven-year (2013 to 2019) period study, conducted in the University Hospital Joseph Ravoahangy Andrianavalona, 69 patients’ data files planned to have spinal anesthesia were recorded. These pediatric patients were predominantly male (sex ratio = 2.8) and 37 [28 - 52] days old. The smallest anesthetized child weighed 880g; the youngest was 4 days old. Twenty-seven (27) of them were premature and 20.3% presented respiratory diseases. They were mostly scheduled for hernia repair (90%). Spinal anesthesia was performed, with a Gauge 25 Quincke spinal needle, after 2 [1 - 2] attempts with hyperbaric bupivacaine of 4 [3.5 - 4] mg. Failure rate was 5.8%. The heart rate was stable throughout perioperative period and no complications were observed.

Use of Spinal Anaesthesia in Neonates and Infants in Antananarivo, Madagascar: A Retrospective Descriptive Study

10.21203/rs.3.rs-33908/v2 ◽

2020 ◽

Author(s):

Harifetra Mamy Richard Randriamizao ◽

Aurelia Rakotondrainibe ◽

Lova Dany Ella Razafindrabekoto ◽

Prisca Funken Ravoaviarivelo ◽

Andriambelo Tovohery Rajaonera ◽

...

Keyword(s):

Spinal Anesthesia ◽

Low Cost ◽

Perioperative Period ◽

University Hospital ◽

Hyperbaric Bupivacaine ◽

Data Files ◽

Male Sex ◽

Neonates And Infants ◽

The University ◽

Abstract Objective : The aim of this study was to present the first cases of spinal anesthesia, in newborns and infants, preterms / ex-prematures, in order to determine its feasibility and its potential harmlessness, in Antananarivo – Madagascar. Indeed, spinal anesthesia is a low cost technique and can limit respiratory complications, postoperative apnea a contrario with pediatric general anesthesia which can lead to perioperative risks. Results : In a retrospective, descriptive, seven-year (2013 to 2019) period study, conducted in the University Hospital Joseph Ravoahangy Andrianavalona, data files of 69 babies planned to have spinal anesthesia were recorded. These pediatric patients were predominantly male (sex ratio = 2.8) and 37 [28 - 52] days old. The smallest anesthetized child weighed 880g; the youngest was 4 days old. Twenty-seven (27) of them were premature and 20.3% presented respiratory diseases. They were mostly scheduled for hernia repair (90%). Spinal anesthesia was performed, with a Gauge 25 Quincke spinal needle, after 2 [1 - 2] attempts with hyperbaric bupivacaine of 4 [3.5 - 4] mg. Failure rate was 5.8%. The heart rate was stable throughout perioperative period and no complications were observed.

The BabySaver: Design of a New Device for Neonatal Resuscitation at Birth with Intact Placental Circulation

Children ◽

10.3390/children8060526 ◽

2021 ◽

Vol 8 (6) ◽

pp. 526

Author(s):

James Ditai ◽

Aisling Barry ◽

Kathy Burgoine ◽

Anthony K. Mbonye ◽

Julius N. Wandabwa ◽

...

Keyword(s):

Low Cost ◽

Neonatal Resuscitation ◽

Sub Saharan Africa ◽

Skilled Birth Attendants ◽

New Device ◽

Birth Attendants ◽

Premature Babies ◽

Sub Saharan ◽

The Uk ◽

The initial bedside care of premature babies with an intact cord has been shown to reduce mortality; there is evidence that resuscitation of term babies with an intact cord may also improve outcomes. This process has been facilitated by the development of bedside resuscitation surfaces. These new devices are unaffordable, however, in most of sub-Saharan Africa, where 42% of the world’s 2.4 million annual newborn deaths occur. This paper describes the rationale and design of BabySaver, an innovative low-cost mobile resuscitation unit, which was developed iteratively over five years in a collaboration between the Sanyu Africa Research Institute (SAfRI) in Uganda and the University of Liverpool in the UK. The final BabySaver design comprises two compartments; a tray to provide a firm resuscitation surface, and a base to store resuscitation equipment. The design was formed while considering contextual factors, using the views of individual women from the community served by the local hospitals, medical staff, and skilled birth attendants in both Uganda and the UK.

Development of a Smartphone-Based University Library Navigation and Information Service Employing Wi-Fi Location Fingerprinting

Sensors ◽

10.3390/s21020432 ◽

2021 ◽

Vol 21 (2) ◽

pp. 432

Author(s):

Guenther Retscher ◽

Alexander Leb

Keyword(s):

Performance Improvement ◽

Low Cost ◽

Information Service ◽

Raspberry Pi ◽

University Library ◽

Stop And Go ◽

Promising Solution ◽

Localization Performance ◽

The University ◽

Suitable Location

A guidance and information service for a University library based on Wi-Fi signals using fingerprinting as chosen localization method is under development at TU Wien. After a thorough survey of suitable location technologies for the application it was decided to employ mainly Wi-Fi for localization. For that purpose, the availability, performance, and usability of Wi-Fi in selected areas of the library are analyzed in a first step. These tasks include the measurement of Wi-Fi received signal strengths (RSS) of the visible access points (APs) in different areas. The measurements were carried out in different modes, such as static, kinematic and in stop-and-go mode, with six different smartphones. A dependence on the positioning and tracking modes is seen in the tests. Kinematic measurements pose much greater challenges and depend significantly on the duration of a single Wi-Fi scan. For the smartphones, the scan durations differed in the range of 2.4 to 4.1 s resulting in different accuracies for kinematic positioning, as fewer measurements along the trajectories are available for a device with longer scan duration. The investigations indicated also that the achievable localization performance is only on the few meter level due to the small number of APs of the University own Wi-Fi network deployed in the library. A promising solution for performance improvement is the foreseen usage of low-cost Raspberry Pi units serving as Wi-Fi transmitter and receiver.

ResUHUrge: A Low Cost and Fully Functional Ventilator Indicated for Application in COVID-19 Patients

Sensors ◽

10.3390/s20236774 ◽

2020 ◽

Vol 20 (23) ◽

pp. 6774

Author(s):

Francisco José Vivas Fernández ◽

José Sánchez Segovia ◽

Ismael Martel Bravo ◽

Carlos García Ramos ◽

Daniel Ruiz Castilla ◽

...

Keyword(s):

Low Cost ◽

Pulmonary Ventilation ◽

Lung Infection ◽

Health Condition ◽

Multidisciplinary Research ◽

Global North ◽

Severity Of The Disease ◽

Open Source Hardware ◽

Although the cure for the SARS-CoV-2 virus (COVID-19) will come in the form of pharmaceutical solutions and/or a vaccine, one of the only ways to face it at present is to guarantee the best quality of health for patients, so that they can overcome the disease on their own. Therefore, and considering that COVID-19 generally causes damage to the respiratory system (in the form of lung infection), it is essential to ensure the best pulmonary ventilation for the patient. However, depending on the severity of the disease and the health condition of the patient, the situation can become critical when the patient has respiratory distress or becomes unable to breathe on his/her own. In that case, the ventilator becomes the lifeline of the patient. This device must keep patients stable until, on their own or with the help of medications, they manage to overcome the lung infection. However, with thousands or hundreds of thousands of infected patients, no country has enough ventilators. If this situation has become critical in the Global North, it has turned disastrous in developing countries, where ventilators are even more scarce. This article shows the race against time of a multidisciplinary research team at the University of Huelva, UHU, southwest of Spain, to develop an inexpensive, multifunctional, and easy-to-manufacture ventilator, which has been named ResUHUrge. The device meets all medical requirements and is developed with open-source hardware and software.