keyword
MENU ▼
Read by QxMD icon Read
search

Flight physiology

keyword
https://www.readbyqxmd.com/read/29445344/invertebrate-trehalose-6-phosphate-synthase-gene-genetic-architecture-biochemistry-physiological-function-and-potential-applications
#1
REVIEW
Bin Tang, Su Wang, Shi-Gui Wang, Hui-Juan Wang, Jia-Yong Zhang, Shuai-Ying Cui
The non-reducing disaccharide trehalose is widely distributed among various organisms. It plays a crucial role as an instant source of energy, being the major blood sugar in insects. In addition, it helps countering abiotic stresses. Trehalose synthesis in insects and other invertebrates is thought to occur via the trehalose-6-phosphate synthase (TPS) and trehalose-6-phosphate phosphatase (TPP) pathways. In many insects, the TPP gene has not been identified, whereas multiple TPS genes that encode proteins harboring TPS/OtsA and TPP/OtsB conserved domains have been found and cloned in the same species...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29444847/turnover-of-muscle-lipids-and-response-to-exercise-differs-between-neutral-and-polar-fractions-in-a-model-songbird-the-zebra-finch
#2
Wales A Carter, Clara Cooper-Mullin, Scott R McWilliams
The turnover rates of tissues and their constituent molecules give us insights into animals' physiological demands and their functional flexibility over time. Thus far, most studies of this kind have focused on protein turnover, and few have considered lipid turnover despite an increasing appreciation of the functional diversity of this class of molecules. We measured the turnover rates of neutral and polar lipids from the pectoralis muscles of a model songbird, the Zebra Finch ( Taeniopygia guttata , N=65), in a 256 day C 3 / C 4 diet shift experiment, with tissue samples taken at ten time points...
February 14, 2018: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29432476/the-impact-of-infrared-radiation-in-flight-control-in-the-australian-firebeetle-merimna-atrata
#3
Marcel Hinz, Adrian Klein, Anke Schmitz, Helmut Schmitz
Infrared (IR) receptors are rare in insects and have only been found in the small group of so-called pyrophilous insects, which approach forest fires. In previous work the morphology of the IR receptors and the physiology of the inherent sensory cells have been investigated. It was shown that receptors are located on the thorax and the abdomen respectively and show an astounding diversity with respect to structure and the presumed transduction mechanism. What is completely missing, however, is any behavioral evidence for the function of the IR receptors in pyrophilous insects...
2018: PloS One
https://www.readbyqxmd.com/read/29424462/environmental-and-genetic-control-of-cold-tolerance-in-the-glanville-fritillary-butterfly
#4
Maaike A de Jong, Marjo Saastamoinen
Thermal tolerance has a major effect on individual fitness and species distributions, and can be determined by genetic variation as well as phenotypic plasticity. We investigate the effects of developmental and adult thermal conditions on cold tolerance, measured as chill coma recovery (CCR) time, during the early and late adult stage in the Glanville fritillary butterfly. We also investigate the genetic basis of cold tolerance by associating CCR variation with polymorphisms in candidate genes that have a known role in insect physiology...
February 9, 2018: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/29414453/physiological-predictors-of-hypoxic-challenge-testing-hct-outcomes-in-interstitial-lung-disease-ild
#5
Shaney L Barratt, Jonathon Shaw, Rachel Jones, Anna Bibby, Huzaifa Adamali, Naveed Mustfa, Ian Cliff, Helen Stone, Nazia Chaudhuri
BACKGROUND: Pre-flight risk assessments are currently recommended for all Interstitial Lung Disease (ILD) patients. Hypoxic challenge testing (HCT) can inform regarding the need for supplemental in-flight oxygen but variables which might predict the outcome of HCT and thus guide referral for assessment, are unknown. METHODS: A retrospective analysis of ILD patients attending for HCT at three tertiary care ILD referral centres was undertaken to investigate the concordance between HCT and existing predictive equations for prediction of in-flight hypoxia...
February 2018: Respiratory Medicine
https://www.readbyqxmd.com/read/29405357/flow-mri-simulation-in-complex-3d-geometries-application-to-the-cerebral-venous-network
#6
Alexandre Fortin, Stéphanie Salmon, Joseph Baruthio, Maya Delbany, Emmanuel Durand
PURPOSE: Develop and evaluate a complete tool to include 3D fluid flows in MRI simulation, leveraging from existing software. Simulation of MR spin flow motion is of high interest in the study of flow artifacts and angiography. However, at present, only a few simulators include this option and most are restricted to static tissue imaging. THEORY AND METHODS: An extension of JEMRIS, one of the most advanced high performance open-source simulation platforms to date, was developed...
February 5, 2018: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29402220/design-of-a-novel-multifunction-decision-support-display-for-anesthesia-care-alertwatch%C3%A2-or
#7
Kevin K Tremper, Jenny J Mace, Jan M Gombert, Theodore T Tremper, Justin F Adams, James P Bagian
BACKGROUND: This paper describes the design of a multifunction alerting display for intraoperative anesthetic care. The design was inspired by the multifunction primary flight display used in modern aviation. RESULTS: The display retrieves live data from multiple sources; the physiologic monitors, the anesthesia information management system, the laboratory values and comorbidities from patient's problem summary list, medical history or history & physical. This information is integrated into a display composed of readily identifiable icons of organ systems, which are color coded to signify normal range, marginal range, abnormal range (by green, yellow, red respectively) and orange outlines for comorbidities/risk factors...
February 5, 2018: BMC Anesthesiology
https://www.readbyqxmd.com/read/29396790/state-dependent-plasticity-in-response-to-host-plant-volatiles-in-a-long-lived-moth-caloptilia-fraxinella-lepidoptera-gracillariidae
#8
Joelle K Lemmen-Lechelt, Tyler J Wist, Maya L Evenden
Volatile chemicals produced by plants mediate host location, mate-finding and oviposition behavior in insects. State-dependent response to plant cues allows for timing of foraging, mating and oviposition on ephemeral host plants or plant parts. Caloptilia fraxinella is a herbivorous specialist on the foliage of ash trees (Fraxinus). Adults are long-lived and undergo a nine-month reproductive diapause over the fall and winter. Mating and oviposition occur in the spring when volatile chemicals released by ash leaves mediate host location...
February 3, 2018: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/29391508/the-effects-of-scaling-on-age-sex-and-size-relationships-in-red-legged-partridges
#9
Jesús Nadal, Carolina Ponz, Antoni Margalida
Wild birds differ in size according to their age and sex, adult birds being larger than juveniles. In the galliforms, males are larger than females, in contrast to some groups, such as the raptors, in which the females are larger. Size generally influences the rank hierarchy within a group of birds, although the age, sex, temperament and behaviour of an individual may override its size related rank order. The scaled size of birds according to age and sex affects their physiology and behaviour. Precise details of body-size differences by age and sex are poorly known in most partridge species...
February 1, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29367401/phanerozoic-po2-and-the-early-evolution-of-terrestrial-animals
#10
Sandra R Schachat, Conrad C Labandeira, Matthew R Saltzman, Bradley D Cramer, Jonathan L Payne, C Kevin Boyce
Concurrent gaps in the Late Devonian/Mississippian fossil records of insects and tetrapods (i.e. Romer's Gap) have been attributed to physiological suppression by low atmospheric pO2 Here, updated stable isotope inputs inform a reconstruction of Phanerozoic oxygen levels that contradicts the low oxygen hypothesis (and contradicts the purported role of oxygen in the evolution of gigantic insects during the late Palaeozoic), but reconciles isotope-based calculations with other proxies, like charcoal. Furthermore, statistical analysis demonstrates that the gap between the first Devonian insect and earliest diverse insect assemblages of the Pennsylvanian (Bashkirian Stage) requires no special explanation if insects were neither diverse nor abundant prior to the evolution of wings...
January 31, 2018: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29362002/relationship-between-welfare-and-individual-ranging-behaviour-in-commercial-free-range-laying-hens
#11
H Larsen, P H Hemsworth, G M Cronin, S G Gebhardt-Henrich, C L Smith, J-L Rault
Laying hens housed in free-range systems have access to an outdoor range, and individual hens within a flock differ in their ranging behaviour. Whether there is a link between ranging and laying hen welfare remains unclear. We analysed the relationships between ranging by individual hens on a commercial free-range layer farm and behavioural, physiological and health measures of animal welfare. We hypothesised that hens that access the range more will be (1) less fearful in general and in response to novelty and humans, (2) have better health in terms of physical body condition and (3) have a reduced physiological stress response to behavioural tests of fear and health assessments than hens that use the range less...
January 24, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29327354/a-validated-liquid-chromatography-high-resolution-tandem-mass-spectrometry-method-for-the-simultaneous-quantitation-of-tryptophan-kynurenine-kynurenic-acid-and-quinolinic-acid-in-human-plasma
#12
Kathrin Arnhard, Florian Pitterl, Barbara Sperner-Unterweger, Dietmar Fuchs, Therese Koal, Herbert Oberacher
Tryptophan (TRP) catabolism via the kynurenine pathway is considered to represent a major link between inflammation and various diseases, including neurodegenerative disorders, depression, schizophrenia, multiple sclerosis, cardiovascular disease, and cancer. The kynurenine pathway and levels of TRP and its metabolites kynurenine (KYN), kynurenic acid (KYNA) and quinolinic acid (QUIN) are well regulated under physiological conditions but may be altered as part of the activated immune response. A simple, sensitive and specific liquid chromatography-time of flight mass spectrometry method was developed for determining levels of the four compounds in human plasma samples...
January 12, 2018: Electrophoresis
https://www.readbyqxmd.com/read/29319228/mobility-affects-copulation-and-oviposition-dynamics-in-pieris-brassicae-in-semi-natural-cages
#13
Nicolas Larranaga, Michel Baguette, Olivier Calvez, Delphine Legrand
When, how often and for how long organisms mate can have strong consequences for individual fitness and are crucial aspects of evolutionary ecology. Such determinants are likely to be of even greater importance in monandrous species and species with short adult life stages. Previous work suggests that mobility, a key dispersal-related trait, may affect the dynamics of copulations, but few studies have investigated the impact of individual mobility on mating latency, copulation duration and oviposition latency simultaneously...
January 10, 2018: Insect Science
https://www.readbyqxmd.com/read/29306937/the-effects-of-stress-and-meditation-on-the-immune-system-human-microbiota-and-epigenetics
#14
Ayman Mukerji Househam, Christine Tara Peterson, Paul J Mills, Deepak Chopra
Context • Globally, more than 25% of individuals are affected by anxiety and depression disorders. Meditation is gaining popularity in clinical settings and its treatment efficacy is being studied for a wide array of psychological and physiological ailments. An exploration of stress physiology is an essential precursor to delineation of the mechanisms underlying the beneficial effects of meditation practices. Objective • The review outlines a model of interconnected physiological processes that might support the continued inclusion and expansion of meditation in the treatment of diverse medical conditions and to investigate the role that gut microbiota may play in realizing well-being through meditation...
October 2017: Advances in Mind-body Medicine
https://www.readbyqxmd.com/read/29287520/behavioural-physiological-and-psychological-responses-of-passengers-to-the-thermal-environment-of-boarding-a-flight-in-winter
#15
Yuxin Wu, Hong Liu, Baizhan Li, Yong Cheng, Daniel Mmereki, Deyu Kong
In practice, passengers actively respond to the thermal environment when they board an aircraft in winter, which is not considered in the current standards. In this study, the behavioural, physiological, and psychological responses to the thermal environment were examined at 22 °C (with 68 subjects), 20 °C, and 26 °C (with 32 subjects). The results showed that the three air temperature levels had significant effect on nozzle usage and clothing adjustment behaviours, surface skin temperature, and thermal sensation vote (TSV)...
December 29, 2017: Ergonomics
https://www.readbyqxmd.com/read/29286496/evoked-bioelectrical-brain-activity-following-exposure-to-ionizing-radiation
#16
K Loganovsky, K Kuts
The article provides an overview of modern physiological evidence to support the hypothesis on cortico limbic sys tem dysfunction due to the hippocampal neurogenesis impairment as a basis of the brain interhemispheric asym metry and neurocognitive deficit after radiation exposure. The importance of the research of both evoked poten tials and fields as a highly sensitive and informative method is emphasized.Particular attention is paid to cerebral sensor systems dysfunction as a typical effect of ionizing radiation...
December 2017: Problemy Radiat︠s︡iĭnoï Medyt︠s︡yny Ta Radiobiolohiï
https://www.readbyqxmd.com/read/29283379/a-metabolomic-and-lipidomic-serum-signature-from-nonhuman-primates-administered-with-a-promising-radiation-countermeasure-gamma-tocotrienol
#17
Amrita K Cheema, Khyati Y Mehta, Oluseyi O Fatanmi, Stephen Y Wise, Charles P Hinzman, Josh Wolff, Vijay K Singh
The development of radiation countermeasures for acute radiation syndrome (ARS) has been underway for the past six decades, leading to the identification of multiple classes of radiation countermeasures. However, to date, only two growth factors (Neupogen and Neulasta) have been approved by the United States Food and Drug Administration (US FDA) for the mitigation of hematopoietic acute radiation syndrome (H-ARS). No radioprotector for ARS has been approved by the FDA yet. Gamma-tocotrienol (GT3) has been demonstrated to have radioprotective efficacy in murine as well as nonhuman primate (NHP) models...
December 28, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29242630/heavy-rainfall-triggers-increased-nocturnal-flight-in-desert-populations-of-the-pacific-black-duck-anas-superciliosa
#18
J F McEvoy, R F H Ribot, J C Wingfield, A T D Bennett
Understanding of avian nocturnal flight comes mainly from northern hemisphere species in seasonal temperate ecosystems where nocturnal flight is often precisely timed and entrained by annual photoperiod. Here we investigate patterns of nocturnal flight in waterbirds of Australian desert ecosystems that fly considerable distances to find temporary water bodies formed from rainfall which is highly unpredictable seasonally and spatially, and when there is sufficient water, they then breed. How they perform these feats of navigation and physiology remain poorly known...
December 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29227735/effect-of-8-weeks-of-concurrent-plyometric-and-running-training-on-spatiotemporal-and-physiological-variables-of-novice-runners
#19
Josué Gómez-Molina, Ana Ogueta-Alday, Jesus Camara, Christopher Stickley, Juan García-López
Concurrent plyometric and running training has the potential to improve running economy (RE) and performance through increasing muscle strength and power, but the possible effect on spatiotemporal parameters of running has not been studied yet. The aim of this study was to compare the effect of 8 weeks of concurrent plyometric and running training on spatiotemporal parameters and physiological variables of novice runners. Twenty-five male participants were randomly assigned into two training groups; running group (RG) (n = 11) and running + plyometric group (RPG) (n = 14)...
December 11, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/29224161/quantitative-region-specific-dna-methylation-analysis-by-the-epityper%C3%A2-technology
#20
Sonja Kunze
DNA methylation plays a profound role in development and health as well as development and progression of disease. High-throughput quantitative DNA methylation analysis is therefore crucial for the study of the normal physiology of the epigenome and its dysregulation in disease. Many target areas are identified by a range of emerging genome-wide cytosine methylation techniques, but these whole genome scans usually only provide methylation data for a few individual CpG sites (CpGs) within a region. The EpiTYPER™ assay is a region-specific method for the detection and quantitative analysis of DNA methylation that allows performing a high-resolution scan of selected regions...
2018: Methods in Molecular Biology
keyword
keyword
98289
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"