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Substantial memory increase for ECG validation

Star-Oddi‘s leadless heart rate and temperature logger DST milli-HRT can  now store substantially more ECG validation data in memory, yielding more ECG data to the researcher through a large memory increase of the logger.

Heart rate (beats per minute) and temperature is recorded at a defined sampling interval but the ECG can also be recorded at certain periods for ECG validation. The memory capacity for storing ECG has gone up 16-fold, from 174 to 2,785 raw ECG measurements. If the raw ECG measurements are never saved, the memory capacity is 699,000 measurements for heart rate and temperature. The graph shows ECG data from a laboratory rat.

The increased memory is available in the DST milli-HRT which is 13mm x 39.5mm, weighing 11.8 g. Star-Oddi also offers a smaller version of the heart rate and temperature logger, DST micro-HRT, which is 8.3mm x 25.4mm and weighs 3.3 g.


Heart rate logger gaining ground

The Star-Oddi‘s heart rate and temperature logger has received great response in only a short period, not only in laboratory use but also in high appreciation in wildlife research as the leadless design facilitates quick and minimally invasive implantation.

Since its release 20 months ago it has reached widespread use covering typical animal models such as rats, rabbits, ferrets and macaques to more unconventional wildlife models such as brown bears, bats and different types of fish to name a few. The logger provides scientists with ECG derived heart-rate and core body temperature measurements for periods lasting days up to months.

 

NEWS FROM THE LAB

Adherence to vaginal rings validated using nano temp logger
-rings used to fight HIV epidemic in Africa

Last May a paper was published in PlosOne where the world‘s smallest temperature logger the DST nano-T, 6 mm x 17 mm, 1 g, was used in a validation study for vaginal rings to measure adherence. By embedding the temperature logger inside a vaginal ring sampling every 8 minutes it was possible to accurately detect periods of ring removal when tested in macaques. The results prove that vaginal rings containing embedded temperature loggers may be useful in the assessment of product adherence in late-stage clinical trials.

The end goal of the vaginal rings is to reduce HIV infections in Africa signifcantly by use of the rings in women.


Cynomolgus macaques favoured for pandemic H1N1 influenza virus research

Results of a new study published in PlosOne which explors the effect of H1N1 Influenza Virus in Cynomolgus macaques, Rhesus monkeys and common Marmoset favoured the cynomolgus macaques as a model for pandemic H1N1 influenza virus research. The reason is the more uniform and higher levels of virus replication and temperature increases. This may be attributed to a more abundant expression of the main human influenza virus in the trachea and bronchi.

The researchers used DST micro-T temperature loggers implanted in the abdomen to measure the core body temperature of the animals every 15 minutes for 42 days. The results of the study are available at PlosOne

Maritime Reporter July 2015
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NOAA lists 20 coral species as threatened under the Endangered Species Act

Acropora globiceps coral listed for protection under the Endangered Species Act. This species occurs in the Indo-Pacific; within US waters it occurs in Guam, Commonwealth of Northern Mariana Islands, Pacific Remoste Island Areas and American Samoa. (Credit: NOAA)

HYPACK, Inc. recently supplied five NOAA Fishery Survey Vessels with the HYPACK® and HYSWEEP® software solution.

HYPACK and HYSWEEP Software for NOAA Fishery Survey Vessels
Two International Commissions Select HYPACK

HYPACK was selected as the main hydrographic tool for two international commissions responsible for important navigational areas of Argentina and Uruguay. The Administrative Commission of the La Plata River (CARP), and the Administrative Commission of the River Uruguay (CARU), are managing the Uruguay River and Rio de la Plata which constitute part of the national border between Argentina, Brazil and Uruguay.

HYPACK e Marine Magnetics insieme

Following the purchase of a fleet of magnetometers by SHOM (French Hydrographic Department), Marine Magnetics and HYPACK, Inc. worked together to provide a solution to better acquire and process the magnetometer data.