keyword
MENU ▼
Read by QxMD icon Read
search

Data logger

keyword
https://www.readbyqxmd.com/read/28793901/mobility-assessment-of-a-rural-population-in-the-netherlands-using-gps-measurements
#1
Gijs Klous, Lidwien A M Smit, Floor Borlée, Roel A Coutinho, Mirjam E E Kretzschmar, Dick J J Heederik, Anke Huss
BACKGROUND: The home address is a common spatial proxy for exposure assessment in epidemiological studies but mobility may introduce exposure misclassification. Mobility can be assessed using self-reports or objectively measured using GPS logging but self-reports may not assess the same information as measured mobility. We aimed to assess mobility patterns of a rural population in the Netherlands using GPS measurements and self-reports and to compare GPS measured to self-reported data, and to evaluate correlates of differences in mobility patterns...
August 9, 2017: International Journal of Health Geographics
https://www.readbyqxmd.com/read/28790930/it-takes-time-to-be-cool-on-the-relationship-between-hyperthermia-and-body-cooling-in-a-migrating-seaduck
#2
Magella Guillemette, Elias T Polymeropoulos, Steven J Portugal, David Pelletier
The large amount of energy expended during flapping flight is associated with heat generated through the increased work of the flight muscles. This increased muscle work rate can manifest itself in core body temperature (Tb) increase of 1-2°C in birds during flight. Therefore, episodic body cooling may be mandatory in migratory birds. To elucidate the thermoregulatory strategy of a short-distance migrant, common eiders (Somateria mollissima), we implanted data loggers in the body cavity of wild birds for 1 year, and report information on Tb during their entire migration for 19 individuals...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28755940/behavioral-and-patho-physiological-response-as-possible-signs-of-pain-in-dairy-cows-during-escherichia-coli-mastitis-a-pilot-study
#3
Alice de Boyer des Roches, Marion Faure, Alexandra Lussert, Vincent Herry, Pascal Rainard, Denys Durand, Gilles Foucras
Bovine mastitis is one of the most common diseases in the dairy industry and it is a major welfare problem. Pain during mastitis is generally assessed through behavior but a combination of indicators would increase the chances of detecting pain and assessing its intensity. The aim of this study was to assess behavioral and patho-physiological responses as possible signs of pain experienced by cows after experimental intramammary challenge (mastitis) with Escherichia coli. Six Holstein-Friesian cows received an inoculation of E...
July 26, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28750073/a-preliminary-study-to-estimate-contact-rates-between-free-roaming-domestic-dogs-using-novel-miniature-cameras
#4
Courtenay B Bombara, Salome Dürr, Gabriel E Machovsky-Capuska, Peter W Jones, Michael P Ward
Information on contacts between individuals within a population is crucial to inform disease control strategies, via parameterisation of disease spread models. In this study we investigated the use of dog-borne video cameras-in conjunction with global positioning systems (GPS) loggers-to both characterise dog-to-dog contacts and to estimate contact rates. We customized miniaturised video cameras, enclosed within 3D-printed plastic cases, and attached these to nylon dog collars. Using two 3400 mAh NCR lithium Li-ion batteries, cameras could record a maximum of 22 hr of continuous video footage...
2017: PloS One
https://www.readbyqxmd.com/read/28732304/outbreak-of-salmonella-enteritidis-pt14b-gastroenteritis-at-a-restaurant-in-england-the-use-of-molecular-typing-to-achieve-a-successful-prosecution
#5
C Chatt, D Nicholds-Trainor, A Scrivener, S Suleman, M Harvey, T Dallman, J Hawker, B Sibal
OBJECTIVES: To describe an outbreak of Salmonella enteritidis phage type (PT) 14b in people who had eaten at a restaurant, and the investigation and subsequent prosecution of the food business operator (FBO). STUDY DESIGN: The local health protection team and environmental health department formed an outbreak control team to investigate the outbreak. METHODS: Epidemiological, microbiological, and environmental investigations were undertaken...
July 18, 2017: Public Health
https://www.readbyqxmd.com/read/28727097/evaluating-the-impact-of-breed-pregnancy-and-hair-coat-on-body-temperature-and-sweating-rate-of-hair-sheep-ewes-in-the-tropics
#6
R W Godfrey, W D Preston, S R Joseph, L LaPlace, P E Hillman, K G Gebremedhin, C N Lee, R J Collier
The objective of this study was to evaluate the effect of pregnancy, breed, and hair coat on body temperature and sweating rate (SR) of hair sheep. St. Croix White (STX; = 9) and Dorper × STX (DRPX; = 9) ewes (3.6 yr of age) were evaluated over 4 d at 126 d of gestation (PREG) and over 4 d at 46 d postpartum (OPEN) in the shade and sun and in the morning (AM; 0900 to 1200 h) and afternoon (PM; 1300 to 1600 h) after a 20 min acclimation to each condition on each day. Data loggers recorded vaginal temperature (VT) at 10-min intervals for 96 h...
July 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28724705/apparent-changes-in-body-insulation-of-juvenile-king-penguins-suggest-an-energetic-challenge-during-their-early-life-at-sea
#7
Manfred R Enstipp, Charles-André Bost, Céline Le Bohec, Caroline Bost, Yvon Le Maho, Henri Weimerskirch, Yves Handrich
Little is known about the early life at sea of marine top predators, like deep-diving king penguins (Aptenodytes patagonicus), although this dispersal phase is probably a critical phase in their life. Apart from finding favourable foraging sites, they have to develop effective prey search patterns as well as physiological capacities that enable them to capture sufficient prey to meet their energetic needs. To investigate the ontogeny of their thermoregulatory responses at sea, we implanted 30 juvenile king penguins and 8 adult breeders with a small data logger that recorded pressure and subcutaneous temperature continuously for up to 2...
July 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28711254/effect-of-maternal-exercise-on-calf-dry-matter-intake-weight-gain-behavior-and-cortisol-concentrations-at-disbudding-and-weaning
#8
R A Black, B K Whitlock, P D Krawczel
The objective of this study was to determine the effect of maternal physical activity during late gestation on calf dry matter intake, weight gain, behavior, and cortisol concentration during disbudding and weaning. Fifty-five Holstein and 5 Jersey × Holstein crossbred calves were enrolled into the study during gestation. Calves were born from pregnant, nonlactating Holstein (n = 58) and Jersey × Holstein crossbred (n = 2) dairy cows. Cows were assigned to either confinement (n = 20 cows; 13 female calves, 7 male calves), exercise (n = 20 cows; 8 female calves, 12 male calves), or pasture (n = 20 cows; 11 female calves, 9 male calves) treatments at dry-off from January to November 2015...
September 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28704750/homing-pigeons-externally-exposed-to-deepwater-horizon-crude-oil-change-flight-performance-and-behavior
#9
Cristina R Perez, John K Moye, Dave Cacela, Karen M Dean, Chris A Pritsos
The Deepwater Horizon oil spill was the largest in U.S. history, contaminating thousands of miles of coastal habitat and affecting the lives of many avian species. The Gulf of Mexico is a critical bird migration route area and migrants that were oiled but did not suffer mortality as a direct result of the spill faced unpredictable fates. This study utilized homing pigeons as a surrogate species for migratory birds to investigate the effects a single low level external oiling event has on the flight performance and behavior of birds flying repeated 161 km flights...
July 10, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28662364/data-logger-technologies-for-powered-wheelchairs-a-scoping-review
#10
François Routhier, Josiane Lettre, William C Miller, Jaimie F Borisoff, Kate Keetch, Ian M Mitchell
In recent years, studies increasingly employed data loggers to record the objective behaviors of powered wheelchair users. Of the data logging work reported in the literature, the technologies used offer marked differences in characteristics. In order to identify and describe the extent of published research activity that relies on data logger technologies for powered wheelchairs, we performed a scoping review of the scientific and grey literature. This scoping review, complementary to a previous one related to manual wheelchairs, is part of a process aiming to help further the development and increase the functionality of data loggers with wheelchairs...
June 29, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28659648/impact-of-storage-environment-on-the-efficacy-of-hermetic-storage-bags
#11
Brett Lane, Charles Woloshuk
Small hermetic bags (50 and 100 kg capacities) used by smallholder farmers in several African countries have proven to be a low-cost solution for preventing storage losses due to insects. The complexity of postharvest practices and the need for ideal drying conditions, especially in the Sub-Sahara, has led to questions about the efficacy of the hermetic bags for controlling spoilage by fungi and the potential for mycotoxin accumulation. This study compared the effects of environmental temperature and relative humidity at two locations (Indiana and Arkansas) on dry maize (14% moisture content) in woven polypropylene bags and Purdue Improved Crop Storage (PICS) hermetic bags...
May 2017: Journal of Stored Products Research
https://www.readbyqxmd.com/read/28627308/hormonal-and-neuromuscular-responses-to-breastfeeding-a-pilot-study
#12
Madalynn Neu, Zhaoxing Pan, Ashley Haight, Karen Fehringer, Katrina Maluf
OBJECTIVES: Difficult breastfeeding in the first weeks after birth may result in muscle tension in infants and activation of the maternal hypothalamic-pituitary-adrenal (HPA) axis and sympathetic nervous system (SNS). Our primary objective was to examine the feasibility of collecting neuroendocrine markers of maternal HPA axis and SNS activation (salivary cortisol and α-amylase [sAA]) and electromyographic (EMG) markers of infant distress during feeding in the first 2 weeks after birth...
July 2017: Biological Research for Nursing
https://www.readbyqxmd.com/read/28596040/low-level-exposure-to-crude-oil-impacts-avian-flight-performance-the-deepwater-horizon-oil-spill-effect-on-migratory-birds
#13
Cristina R Perez, John K Moye, Dave Cacela, Karen M Dean, Chris A Pritsos
In 2010, the Deepwater Horizon oil spill released 134 million gallons of crude oil into the Gulf of Mexico making it the largest oil spill in US history. The three month oil spill left tens of thousands of birds dead; however, the fate of tens of thousands of other migratory birds that were affected but did not immediately die is unknown. We used the homing pigeon as a surrogate species for migratory birds to investigate the effects of a single external oiling event on the flight performance of birds. Data from GPS data loggers revealed that lightly oiled pigeons took significantly longer to return home and spent more time stopped en route than unoiled birds...
June 5, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28573721/gps-identified-low-level-nocturnal-activity-of-vervets-chlorocebus-pygerythrus-and-olive-baboons-papio-anubis-in-laikipia-kenya
#14
Lynne A Isbell, Laura R Bidner, Margaret C Crofoot, Akiko Matsumoto-Oda, Damien R Farine
OBJECTIVES: Except for owl monkeys (Aotus spp.), all anthropoid primates are considered strictly diurnal. Recent studies leveraging new technologies have shown, however, that some diurnal anthropoids also engage in nocturnal activity. Here we examine the extent to which vervets (Chlorocebus pygerythrus) and olive baboons (Papio anubis) are active at night. MATERIALS AND METHODS: We deployed GPS collars with tri-axial accelerometer data loggers on 18 free-ranging adult females: 12 vervets spread among 5 social groups, and 6 olive baboons spread among 4 groups...
June 2, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28573009/characterizing-and-quantifying-human-movement-patterns-using-gps-data-loggers-in-an-area-approaching-malaria-elimination-in-rural-southern-zambia
#15
Kelly M Searle, Jailos Lubinda, Harry Hamapumbu, Timothy M Shields, Frank C Curriero, David L Smith, Philip E Thuma, William J Moss
In areas approaching malaria elimination, human mobility patterns are important in determining the proportion of malaria cases that are imported or the result of low-level, endemic transmission. A convenience sample of participants enrolled in a longitudinal cohort study in the catchment area of Macha Hospital in Choma District, Southern Province, Zambia, was selected to carry a GPS data logger for one month from October 2013 to August 2014. Density maps and activity space plots were created to evaluate seasonal movement patterns...
May 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28570562/anomalous-diffusion-on-the-servosphere-a-potential-tool-for-detecting-inherent-organismal-movement-patterns
#16
Naohisa Nagaya, Nobuaki Mizumoto, Masato S Abe, Shigeto Dobata, Ryota Sato, Ryusuke Fujisawa
Tracking animal movements such as walking is an essential task for understanding how and why animals move in an environment and respond to external stimuli. Different methods that implemented image analysis and a data logger such as GPS have been used in laboratory experiments and in field studies, respectively. Recently, animal movement patterns without stimuli have attracted an increasing attention in search for common innate characteristics underlying all of their movements. However, it is difficult to track the movements in a vast and homogeneous environment without stimuli because of space constraints in laboratories or environmental heterogeneity in the field, hindering our understanding of inherent movement patterns...
2017: PloS One
https://www.readbyqxmd.com/read/28566138/a-newly-developed-ultraminiature-wearable-electromyogram-system-useful-for-analyses-of-masseteric-activity-during-the-whole-day
#17
Taihiko Yamaguchi, Saki Mikami, Miku Saito, Kazuki Okada, Akihito Gotouda
PURPOSE: We describe the characteristics of a new data-logger-type ultraminiature electromyogram (EMG) system (FLA-500-SD) and methods used for recording and we show its potential in clinical applications by presenting an example of a clinical case. METHOD: FLA contains electrodes, an amplifier, 12-bit analog-to-digital (A/D) converter at a sampling frequency of 1kHz, 16-bit CPU, a 3.7-V coin-shaped lithium battery, and a micro SD card. The size of FLA is 37.0×23...
May 26, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/28558030/fine-scale-variation-in-microclimate-across-an-urban-landscape-shapes-variation-in-mosquito-population-dynamics-and-the-potential-of-aedes-albopictus-to-transmit-arboviral-disease
#18
Courtney C Murdock, Michelle V Evans, Taylor D McClanahan, Kerri L Miazgowicz, Blanka Tesla
Most statistical and mechanistic models used to predict mosquito-borne disease transmission incorporate climate drivers of disease transmission by utilizing environmental data collected at geographic scales that are potentially coarser than what mosquito populations may actually experience. Temperature and relative humidity can vary greatly between indoor and outdoor environments, and can be influenced strongly by variation in landscape features. In the Aedes albopictus system, we conducted a proof-of-concept study in the vicinity of the University of Georgia to explore the effects of fine-scale microclimate variation on mosquito life history and vectorial capacity (VC)...
May 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28534031/incomplete-milking-in-early-lactation-does-not-affect-dairy-cows-resting-behaviors-results-from-a-randomized-controlled-trial
#19
Catarina Krug, Trevor J DeVries, Jean-Philippe Roy, Jocelyn Dubuc, Simon Dufour
The objective of this study was to investigate the effect of incomplete milking during the first 5 days of lactation on the resting behavior of commercial dairy cows. The hypothesis was that the elevated intramammary pressure resulting from milk retained in the udder in incompletely milked cows could lead to a change in lying behavior. This study was a randomized controlled trial in which cows from two farms were randomly allocated into a treatment (n = 18) or a control group (n = 14). Cows in the treatment group were milked incompletely (10-14 L/days) during the first 5 days of lactation, while cows in the control group were milked as usually done on farm...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28470122/daily-cycles-in-body-temperature-in-a-songbird-change-with-photoperiod-and-are-weakly-circadian
#20
Alistair Dawson
Although it is well known that body temperature (Tb) is higher during the day in diurnal birds than at night, no data are available regarding exactly how Tb varies during a 24-h period, how this differs under different photoperiods, and how it responds to a change in photoperiod. This study used implanted temperature loggers in starlings ( Sturnus vulgaris) to address these questions. The duration of elevated Tb was directly related to photoperiod, but the amplitude of the daily cycle was significantly greater under shorter photoperiods...
April 2017: Journal of Biological Rhythms
keyword
keyword
78478
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"