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Behaviour analysis

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https://www.readbyqxmd.com/read/29055094/divergent-migration-within-lake-sturgeon-acipenser-fulvescens-populations-multiple-distinct-patterns-exist-across-an-unrestricted-migration-corridor
#1
S T Kessel, D W Hondorp, C M Holbrook, J C Boase, J A Chiotti, M V Thomas, T C Wills, E F Roseman, R Drouin, C C Krueger
1.Population structure, distribution, abundance, and dispersal arguably underpin the entire field of animal ecology, with consequences for regional species persistence, and provision of ecosystem services. Divergent migration behaviours among individuals or among populations is an important aspect of the ecology of highly-mobile animals, allowing populations to exploit spatially- or temporally-distributed food and space resources. 2.This study investigated the spatial ecology of lake sturgeon (Acipenser fulvescens) within the barrier free Huron-Erie Corridor (HEC), which connects Lake Huron and Lake Erie of the North American Laurentian Great Lakes...
October 21, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/29054880/common-synaptic-input-to-motor-neurons-and-neural-drive-to-targeted-reinnervated-muscles
#2
D Farina, A M Castronovo, I Vujaklija, A Sturma, S Salminger, C Hofer, O C Aszmann
We compared the behaviour of motor neurons innervating their physiological muscle targets with motor neurons from the same spinal segment whose axons were surgically redirected to remnant muscles (targeted muscle reinnervation). The objective was to assess whether motor neurons with non-physiological innervation receive similar synaptic input and could be voluntary controlled as motor neurons with natural innervation. For this purpose, we acquired high-density EMG signals from the biceps brachii in 5 male trans-humeral amputees who underwent targeted reinnervation of this muscle by the ulnar nerve and from the first dorsal interosseous muscle of 5 healthy individuals to investigate the natural innervation of the ulnar nerve...
October 20, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29054560/transcultural-adaptation-into-spanish-of-the-induction-compliance-checklist-for-assessing-children-s-behaviour-during-induction-of-anaesthesia
#3
Carmen Jerez-Molina, Juan J Lázaro-Alcay, Ana M Ullán-de la Fuente
OBJECTIVE: Cross-cultural adaptation into Spanish of the Induction Compliance Checklist (ICC) for assessing children's behaviour during induction of anaesthesia. METHOD: A descriptive cross-sectional observational study was conducted on a sample of 81 children aged 2 to 12 years operated in an ambulatory surgery unit of a paediatric hospital in Barcelona. Adaptation by translation-back translation of the tool and analysis of the scale's validity and reliability...
October 17, 2017: Enfermería Clínica
https://www.readbyqxmd.com/read/29053912/community-based-screening-of-hepatitis-c-with-a-one-step-rna-detection-algorithm-from-dried-blood-spots-analysis-of-key-populations-in-barcelona-spain
#4
V Saludes, C Folch, A Morales-Carmona, L Ferrer, L Fernández, R Muñoz, M Jiménez, E Loureiro, P Fernández-Dávila, E Bascuñana, J Casabona, E Martró
Alternative strategies are required to enhance the diagnosis of silent hepatitis C virus (HCV) infections in hard-to-reach key populations at risk. Among them, HCV prevalence and bio-behavioural data is scarce for HIV-negative men who have sex with men (MSM) and men and trans-women sex workers. We sought to describe and assess the potential benefits of a community-based one-step HCV screening and confirmatory strategy for these populations in Barcelona. The screening strategy based on a real-time RT-PCR assay for HCV-RNA detection in dried-blood spots (DBS) was validated and implemented in addition to an antibody point-of-care test in a community centre...
October 20, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/29053860/clinicopathological-correlations-in-behavioural-variant-frontotemporal-dementia
#5
David C Perry, Jesse A Brown, Katherine L Possin, Samir Datta, Andrew Trujillo, Anneliese Radke, Anna Karydas, John Kornak, Ana C Sias, Gil D Rabinovici, Maria Luisa Gorno-Tempini, Adam L Boxer, Mary De May, Katherine P Rankin, Virginia E Sturm, Suzee E Lee, Brandy R Matthews, Aimee W Kao, Keith A Vossel, Maria Carmela Tartaglia, Zachary A Miller, Sang Won Seo, Manu Sidhu, Stephanie E Gaus, Alissa L Nana, Jose Norberto S Vargas, Ji-Hye L Hwang, Rik Ossenkoppele, Alainna B Brown, Eric J Huang, Giovanni Coppola, Howard J Rosen, Daniel Geschwind, John Q Trojanowski, Lea T Grinberg, Joel H Kramer, Bruce L Miller, William W Seeley
Accurately predicting the underlying neuropathological diagnosis in patients with behavioural variant frontotemporal dementia (bvFTD) poses a daunting challenge for clinicians but will be critical for the success of disease-modifying therapies. We sought to improve pathological prediction by exploring clinicopathological correlations in a large bvFTD cohort. Among 438 patients in whom bvFTD was either the top or an alternative possible clinical diagnosis, 117 had available autopsy data, including 98 with a primary pathological diagnosis of frontotemporal lobar degeneration (FTLD), 15 with Alzheimer's disease, and four with amyotrophic lateral sclerosis who lacked neurodegenerative disease-related pathology outside of the motor system...
October 6, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29053775/neuroinflammation-and-its-relationship-to-changes-in-brain-volume-and-white-matter-lesions-in-multiple-sclerosis
#6
Gourab Datta, Alessandro Colasanti, Eugenii A Rabiner, Roger N Gunn, Omar Malik, Olga Ciccarelli, Richard Nicholas, Eline Van Vlierberghe, Wim Van Hecke, Graham Searle, Andre Santos-Ribeiro, Paul M Matthews
Brain magnetic resonance imaging is an important tool in the diagnosis and monitoring of multiple sclerosis patients. However, magnetic resonance imaging alone provides limited information for predicting an individual patient's disability progression. In part, this is because magnetic resonance imaging lacks sensitivity and specificity for detecting chronic diffuse and multi-focal inflammation mediated by activated microglia/macrophages. The aim of this study was to test for an association between 18 kDa translocator protein brain positron emission tomography signal, which arises largely from microglial activation, and measures of subsequent disease progression in multiple sclerosis patients...
September 23, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29053575/the-impact-of-a-weight-loss-intervention-on-diet-quality-and-eating-behaviours-in-people-with-obesity-and-copd
#7
Rebecca F McLoughlin, Vanessa M McDonald, Peter G Gibson, Hayley A Scott, Michael J Hensley, Lesley MacDonald-Wicks, Lisa G Wood
There is a paucity of evidence to guide clinicians about appropriate management strategies for people with obesity and Chronic Obstructive Pulmonary Disease (COPD). We have recently published results from the first weight loss intervention in adults (>18 years) with obesity (body mass index; BMI ≥ 30 kg/m²) and COPD, using a low-calorie diet coupled with a partial meal replacement plan and resistance exercise training, which resulted in a 6.4% reduction in weight while maintaining skeletal muscle mass and improving health status...
October 20, 2017: Nutrients
https://www.readbyqxmd.com/read/29052929/what-makes-generalist-mental-health-professionals-effective-when-working-with-people-with-an-intellectual-disability-a-family-member-and-support-person-perspective
#8
Janelle Weise, Karen R Fisher, Julian N Trollor
BACKGROUND: Generalist mental health professionals are inadequately equipped to meet the rights of people with intellectual disability. A better understanding of the attributes of effective professionals may assist in the development of workforce capacity in this area. METHODS: Twenty-eight family/support persons of people with intellectual disability participated in four focus groups. Thematic analysis was undertaken applying the Intellectual Disability Mental Health Core Competencies Framework...
October 20, 2017: Journal of Applied Research in Intellectual Disabilities: JARID
https://www.readbyqxmd.com/read/29052343/learning-lessons-from-the-analysis-of-patient-complaints-relating-to-staff-attitudes-behaviour-and-communication-using-the-concept-of-emotional-labour
#9
Rhona Hogg, Janet Hanley, Pam Smith
OBJECTIVES: This paper explores the content of letters of complaint by patients and carers about the behaviour, attitudes and communication of healthcare staff. BACKGROUND: The most common focus of patient complaints in the UK and other high-income countries is staff attitudes, behaviour and communication. There is a move to learn lessons from patient complaints which can be used to improve patient care and experience. METHODS: Fifty letters of complaint made by patients and carers relating to the behaviour, attitudes and communication of healthcare staff were analysed...
October 20, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/29052282/nursing-staff-intentions-towards-managing-deteriorating-health-in-nursing-homes-a-convergent-parallel-mixed-methods-study-using-the-theory-of-planned-behaviour
#10
Barbara J O'Neill, Trudy Dwyer, Kerry Reid-Searl, Lynne Parkinson
AIMS AND OBJECTIVES: To predict the factors that are most important in explaining nursing staff intentions towards early detection of the deteriorating health of a resident and providing subacute care in the nursing home setting. BACKGROUND: Nursing staff play a pivotal role in managing the deteriorating resident and determining whether the resident needs to be transferred to hospital or remain in the nursing home; however, there is a dearth of literature that explains the factors that influence their intentions...
October 20, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/29051628/deadly-acute-decompression-sickness-in-risso-s-dolphins
#11
A Fernández, E Sierra, J Díaz-Delgado, S Sacchini, Y Sánchez-Paz, C Suárez-Santana, M Arregui, M Arbelo, Y Bernaldo de Quirós
Diving air-breathing vertebrates have long been considered protected against decompression sickness (DCS) through anatomical, physiological, and behavioural adaptations. However, an acute systemic gas and fat embolic syndrome similar to DCS in human divers was described in beaked whales that stranded in temporal and spatial association with military exercises involving high-powered sonar. More recently, DCS has been diagnosed in bycaught sea turtles. Both cases were linked to human activities. Two Risso's dolphin (Grampus griseus) out of 493 necropsied cetaceans stranded in the Canary Islands in a 16-year period (2000-2015), had a severe acute decompression sickness supported by pathological findings and gas analysis...
October 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29051075/the-evolution-and-functional-characterization-of-lined-seahorse-hippocampus-erectus-ccks-involved-in-fasting-and-thermal-stress-response
#12
Huixian Zhang, Geng Qin, Jinhui Sun, Bo Zhang, Qiang Lin
The peptide cholecystokinin (CCK) plays an important role in the regulation of vertebrate appetite and feeding behaviour. In the present study, the full-length cDNA and genomic DNA sequences of two CCK precursors were cloned and analysed in the Syngnathidae fish, the lined seahorse (Hippocampus erectus). Both CCK1 and CCK2 in the seahorse consist of four exons. The sequence of the octapeptide of seahorse CCK1 (DYMGWMDF) was the same as that of the chicken and human, while the octapeptide of seahorse CCK2 (DYEGWMDF) was unique among vertebrates...
October 16, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29050798/animals-anxiety-and-anxiety-disorders-how-to-measure-anxiety-in-rodents-and-why
#13
REVIEW
Jaanus Harro
Measurement of anxiety is desirable for the benefit of drug development and understanding the brain function and mental well-being. Animal models offer the advantages of detailed neurobiological analysis, experimental manipulation of specific components in the brain circuits that underlie psychopathology, and the possibility of screening novel drugs with clinical potential. A large variety of animal models of anxiety and screening tests of anxiolytics is currently in use. While their value in advancing the knowledge and predicting therapeutic success of drugs is unquestionable, the expectations have grown much higher, and the frustration over absence of novel successful drug concepts is rising...
October 16, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/29049384/ideal-cardiovascular-health-predicts-lower-risk-of-abnormal-liver-enzymes-levels-in-the-chilean-national-health-survey-2009-2010
#14
Antonio García-Hermoso, Anthony C Hackney, Robinson Ramírez-Vélez
High levels of gamma glutamyltransferase (gamma-GT) and alanine aminotransferase (ALT), as well as fatty liver index (FLI) has been associated with higher cardiovascular disease risk factors in adults. The aim of this study was to examine the relationship between gamma-GT, ALT, and fatty liver index FLI levels across a gradient number of ideal cardiovascular health metrics in a representative sample of adults from the Chilean National Health Survey 2009-2010. Data from 1,023 men and 1,449 women (≥ 15 years) from the Chilean Health Survey 2009-2010 were analyzed...
2017: PloS One
https://www.readbyqxmd.com/read/29048082/high-temperature-ferroelectric-behaviour-in-%C3%AE-mno2-nanorods-realised-through-enriched-oxygen-vacancy-induced-non-stoichiometry
#15
Reenu Elizabeth John, Anoop Chandran, Justin George, Ajai Jose, Gijo Jose, Joshy Jose, N V Unnikrishnan, Marykutty Thomas, K C George
Nanostructuring followed by incorporation of defect induced non-stoichiometry is an emerging field of prominence due to its capacity to introduce unprecedented properties in materials with potential applications. In this work, crystalline α-MnO2 nanorods are synthesised using a facile co-precipitation method to exhibit ferroelectric behaviour for the first time. The evolution mechanism of the nanorods is investigated using XRD, HRTEM and FTIR spectra, while their thermal stability is probed using TGA/DTA. The novel properties observed are the result of structural rearrangements sparked by electrons in mixed valence cations (Mn(3+)/Mn(4+))...
October 19, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29046564/risky-times-and-risky-places-interact-to-affect-prey-behaviour
#16
Egil Dröge, Scott Creel, Matthew S Becker, Jassiel M'soka
Both short-term and long-term variation in predation risk can affect the behaviour of prey, thus affecting growth, reproduction, survival and population dynamics. Inferences about the strength of such 'risk effects' in the wild have been limited by a lack of studies that relate antipredator responses to the magnitude of direct predation, measure responses of prey to risk from complete predator guilds, and quantify risk in more than one way. Here, we quantify behavioural responses of a complete ungulate prey guild to long-term and short-term variation in risks from all of the large predators in Liuwa Plain National Park, with known patterns of direct predation...
August 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/29046560/ecosystem-functioning-is-enveloped-by-hydrometeorological-variability
#17
Christoforos Pappas, Miguel D Mahecha, David C Frank, Flurin Babst, Demetris Koutsoyiannis
Terrestrial ecosystem processes, and the associated vegetation carbon dynamics, respond differently to hydrometeorological variability across timescales, and so does our scientific understanding of the underlying mechanisms. Long-term variability of the terrestrial carbon cycle is not yet well constrained and the resulting climate-biosphere feedbacks are highly uncertain. Here we present a comprehensive overview of hydrometeorological and ecosystem variability from hourly to decadal timescales integrating multiple in situ and remote-sensing datasets characterizing extra-tropical forest sites...
September 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/29046380/re-evaluating-the-link-between-brain-size-and-behavioural-ecology-in-primates
#18
Lauren E Powell, Karin Isler, Robert A Barton
Comparative studies have identified a wide range of behavioural and ecological correlates of relative brain size, with results differing between taxonomic groups, and even within them. In primates for example, recent studies contradict one another over whether social or ecological factors are critical. A basic assumption of such studies is that with sufficiently large samples and appropriate analysis, robust correlations indicative of selection pressures on cognition will emerge. We carried out a comprehensive re-examination of correlates of primate brain size using two large comparative datasets and phylogenetic comparative methods...
October 25, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29046376/functional-basis-of-the-sexual-dimorphism-in-the-auditory-fovea-of-the-duetting-bushcricket-ancylecha-fenestrata
#19
Jan Scherberich, Jennifer Hummel, Stefan Schöneich, Manuela Nowotny
From mammals to insects, acoustic communication is in many species crucial for successful reproduction. In the duetting bushcricket Ancylecha fenestrata, the mutual acoustic communication between males and females is asymmetrical. We investigated how those signalling disparities are reflected by sexual dimorphism of their ears. Both sexes have tympanic ears in their forelegs, but male ears possess a significantly longer crista acustica containing 35% more scolopidia. With more sensory cells to cover a similar hearing range, the male hearing organ shows a significantly expanded auditory fovea that is tuned to the dominant frequency of the female reply to facilitate phonotactic mate finding...
October 25, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29044927/knock-out-of-histamine-receptor-h3-alters-adaptation-to-sudden-darkness-and-monoamine-levels-in-the-zebrafish
#20
Henri A J Puttonen, Maria Sundvik, Svetlana Semenova, Yukako Shirai, Yu-Chia Chen, Pertti Panula
AIM: Histamine receptor H3 has substantial neuropharmacological potential. Currently, knock-out models of this receptor have been investigated only in mice. We characterized the expression of this receptor in the zebrafish and generated a zebrafish histamine receptor H3 knock-out line. Using this model, we studied the role of histamine receptor H3 in important behaviours. We also analyzed the effect of histamine receptor H3 knock-out on monoaminergic systems, which has not been thoroughly studied in any animal model...
October 16, 2017: Acta Physiologica
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