keyword
MENU ▼
Read by QxMD icon Read
search

Boldness

keyword
https://www.readbyqxmd.com/read/28646599/boldness-predicts-an-individual-s-position-along-an-exploration-exploitation-foraging-trade-off
#1
Samantha C Patrick, David Pinaud, Henri Weimerskirch
Individuals do not have complete information about the environment and therefore they face a trade-off between gathering information (exploration) and gathering resources (exploitation). Studies have shown individual differences in components of this trade-off but how stable these strategies are in a population and the intrinsic drivers of these differences is not well understood. Top marine predators are expected to experience a particularly strong trade-off as many species have large foraging ranges and their prey often have a patchy distribution...
June 24, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28645869/real-time-changes-in-brain-activity-during-sacral-neuromodulation-for-overactive-bladder
#2
Bradley C Gill, Javier Pizarro Berdichevsky, Pallab K Bhattacharyya, Thaddeus S Brink, Brian K Marks, Adrienne Quirouet, Sandip P Vasavada, Stephen E Jones, Howard B Goldman
PURPOSE: To use functional magnetic resonance imaging(fMRI) for identifying changes in brain activity during sacral neuromodulation(SNM) in women with overactive bladder(OAB) who were responsive to therapy. MATERIALS AND METHODS: Women with non-neurogenic refractory OAB who responded to SNM, had a stable program for at least 3 months, with no subsequent OAB treatment were recruited. Enrolled patients completed pre-fMRI validated symptom and quality of life instruments...
June 20, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28643877/cerebral-haemodynamic-response-to-somatosensory-stimulation-in-neonatal-lambs
#3
Shinji Nakamura, David W Walker, Flora Y Wong
The neurovascular coupling response has been defined for the adult brain but in the neonate non-invasive measurement of local cerebral perfusion using NIRS or BOLD fMRI have yielded variable and inconsistent results, including negative responses suggesting decreased perfusion and localised tissue tissue hypoxia. Also, the impact of permissive hypercapnia (Pa CO2  > 50 mmHg) in the management of neonates on cerebrovascular responses to somatosensory input is unknown. Using NIRS to measure changes in cerebral oxy- and deoxy-haemoglobin (ΔoxyHb, ΔdeoxyHb) in 8 anaesthetised newborn lambs, we studied the cerebral haemodynamic functional response to left median nerve stimulation using stimulus trains of 1...
June 23, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28639527/bright-lights-bold-ideas-and-remembering-justine-beckett
#4
(no author information available yet)
It was an honour to once again represent Nurse Researcher at the RCN International Nursing Research Conference at Oxford University in April. I enjoyed meeting so many readers and contributors. Your comments and feedback are vital and help make this journal a publication that meets the needs of readers and continues to attract a growing audience.
June 22, 2017: Nurse Researcher
https://www.readbyqxmd.com/read/28638317/emergence-time-and-skin-melanin-spot-patterns-do-not-correlate-with-growth-performance-social-competitive-ability-or-stress-response-in-farmed-rainbow-trout
#5
Manuel Gesto, Peter V Skov, Alfred Jokumsen
In wild salmonid fish, specific individual behavioral traits have been correlated with the timing of fry emergence from their gravel spawning nests; Early emerging fish display more aggressive behavior and have a higher probability of becoming socially dominant, compared to fish that emerge at a later stage. Apart from aggression and dominance, other behavioral and metabolic traits, such as boldness, metabolic rate, or growth, have also been linked to emergence time. Altogether, the traits of early- and late-emerging fish resemble those of the proactive and reactive stress-coping style, respectively...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28634048/activation-volume-vs-bold-signal-change-as-measures-of-fmri-activation-its-impact-on-gaba-fmri-activation-correlation
#6
Pallab K Bhattacharyya, Micheal D Phillips, Lael A Stone, Mark J Lowe
PURPOSE: To explore the relative robustness of functional MRI (fMRI) activation volume and blood oxygen level-dependent (BOLD) signal change as fMRI metric, and to study the effect of relative robustness on the correlation between fMRI activation and cortical gamma amino butyric acid (GABA) in healthy controls and patients with multiple sclerosis (MS). METHODS: fMRI data were acquired from healthy controls and patients with MS, with the subjects peforming self paced bilateral finger tapping in block design...
June 17, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/28633699/migration-histories-of-multidrug-resistant-tuberculosis-patients-from-the-thailand-myanmar-border-2012-2014
#7
S S Thi, D M Parker, L L Swe, S Pukrittayakamee, C L Ling, K Amornpaisarnloet, M Vincenti-Delmas, F H Nosten
SETTING: Multidrug-resistant tuberculosis (MDR-TB) is a growing public health threat in South-East Asia. TB is typically a disease of poverty and can be spread by infectious humans who migrate from one region to another. DESIGN: We interviewed 20 MDR-TB patients on the Thailand-Myanmar border with regard to their migration histories. Migration origins and destinations were mapped. RESULTS: All but one participant had a history of migration, and maps of migration ranges revealed wide geographic dispersal...
July 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28632921/conference-recommendations-set-bold-agenda
#8
Fiona Brooke
No abstract text is available yet for this article.
June 2017: Australian Journal of Rural Health
https://www.readbyqxmd.com/read/28630709/mark-e-josephson-a-tribute-to-his-work-on-ventricular-arrhythmias
#9
Francis Marchlinski
Dr Josephson was passionate about the study of ventricular arrhythmias and bold in his pioneering approach to their evaluation and management. Programmed right ventricular stimulation to test for antiarrhythmic drug efficacy was already pushing the risk limits for the invasive management of cardiac arrhythmias in the 1970s.
April 2017: Arrhythmia & Electrophysiology Review
https://www.readbyqxmd.com/read/28629975/anatomical-and-functional-properties-of-the-foot-and-leg-representation-in-areas-3b-1-and-2-of-primary-somatosensory-cortex-in-humans-a-7t-fmri-study
#10
Michel Akselrod, Roberto Martuzzi, Andrea Serino, Wietske van der Zwaag, Roger Gassert, Olaf Blanke
Primary somatosensory cortex (S1) processes somatosensory information and is composed of multiple subregions. In particular, tactile information from the skin is encoded in three subregions, namely Brodmann areas (BAs) 3b, 1 and 2, with each area representing a complete map of the contralateral body. Although, much is known about the somatotopic organization of the hand in human S1, less research has been carried out regarding the somatotopic maps of the foot and leg in S1. Moreover, a latero-medial S1 organization along the superior part of the postcentral gyrus has been reported when moving from hip to toes, yet to date there is no study investigating leg/foot maps within the different subregions of S1...
June 16, 2017: NeuroImage
https://www.readbyqxmd.com/read/28628224/human-exposure-to-power-frequency-magnetic-fields-up-to-7-6%C3%A2-mt-an-integrated-eeg-fmri-study
#11
Julien Modolo, Alex W Thomas, Alexandre Legros
We assessed the effects of power-line frequency (60 Hz in North America) magnetic fields (MF) in humans using simultaneous electroencephalography (EEG) and functional magnetic resonance imaging (fMRI). Twenty-five participants were enrolled in a pseudo-double-blind experiment involving "real" or "sham" exposure to sinusoidal 60 Hz MF exposures delivered using the gradient coil of an MRI scanner following two conditions: (i) 10 s exposures at 3 mT (10 repetitions); (ii) 2 s exposures at 7.6 mT (100 repetitions)...
June 19, 2017: Bioelectromagnetics
https://www.readbyqxmd.com/read/28626934/thermal-phsyiology-a-new-dimension-of-the-pace-of-life-syndrome
#12
C T Goulet, M B Thompson, M Michelangeli, B B M Wong, D G Chapple
1.Current syndrome research focuses primarily on behavior with few incorporating components of physiology. One such syndrome is the Pace-of-Life Syndrome (POLS) which describes covariation between behaviour, metabolism immunity, hormonal response, and life history traits. Despite the strong effect temperature has on behavior, thermal physiology has yet to be considered within this syndrome framework. 2.We proposed the POLS to be extended to include a new dimension, the cold-hot axis. Under this premise, it is predicted that thermal physiology and behavior would covary whereby individual positioning along the thermal continuum would coincide with that of the behavioral continuum...
June 19, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28626199/oxygen-and-glucose-as-stimulation-agents-for-bold-functional-mr-imaging-of-rabbit-liver-a-feasibility-study
#13
Fang Yuan, Bin Song, Zixing Huang, Xijiao Liu, Chunchao Xia
PURPOSE: To assess the feasibility of using oxygen and glucose as stimulating agents in blood-oxygen-level-dependent (BOLD) Functional Magnetic Resonance Imaging (fMRI) of rabbit liver and analyze the impacts by blood flow. METHODS: Pure oxygen inhalation, intravenous injection and oral administration of glucose were given to 11 New Zealand white rabbits to compare the differences of liver T2*, aortic flow (AF), portal vein flow (PVF), aortic area (AA) and portal vein area (PVA) before and at 5 min, 10 min, 20 min, 30 min after administrations...
June 16, 2017: Magnetic Resonance in Medical Sciences: MRMS
https://www.readbyqxmd.com/read/28625875/individual-differences-in-functional-connectivity-during-naturalistic-viewing-conditions
#14
Tamara Vanderwal, Jeffrey Eilbott, Emily S Finn, R Cameron Craddock, Adam Turnbull, F Xavier Castellanos
Naturalistic viewing paradigms such as movies have been shown to reduce participant head motion and improve arousal during fMRI scanning relative to task-free rest, and have been used to study both functional connectivity and stimulus-evoked BOLD-signal changes. These task-based hemodynamic changes are synchronized across subjects and involve large areas of the cortex, and it is unclear whether individual differences in functional connectivity are enhanced or diminished under such naturalistic conditions. This work first aims to characterize variability in BOLD-signal based functional connectivity (FC) across 2 distinct movie conditions and eyes-open rest (n=31 healthy adults, 2 scan sessions each)...
June 15, 2017: NeuroImage
https://www.readbyqxmd.com/read/28623277/in-vivo-quantification-of-placental-insufficiency-by-bold-mri-a-human-study
#15
Jie Luo, Esra Abaci Turk, Carolina Bibbo, Borjan Gagoski, Drucilla J Roberts, Mark Vangel, Clare M Tempany-Afdhal, Carol Barnewolt, Judy Estroff, Arvind Palanisamy, William H Barth, Chloe Zera, Norberto Malpica, Polina Golland, Elfar Adalsteinsson, Julian N Robinson, Patricia Ellen Grant
Fetal health is critically dependent on placental function, especially placental transport of oxygen from mother to fetus. When fetal growth is compromised, placental insufficiency must be distinguished from modest genetic growth potential. If placental insufficiency is present, the physician must trade off the risk of prolonged fetal exposure to placental insufficiency against the risks of preterm delivery. Current ultrasound methods to evaluate the placenta are indirect and insensitive. We propose to use Blood-Oxygenation-Level-Dependent (BOLD) MRI with maternal hyperoxia to quantitatively assess mismatch in placental function in seven monozygotic twin pairs naturally matched for genetic growth potential...
June 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28616455/ultra-high-field-7%C3%A2-t-multi-resolution-fmri-data-for-orientation-decoding-in-visual-cortex
#16
Ayan Sengupta, Renat Yakupov, Oliver Speck, Stefan Pollmann, Michael Hanke
Multivariate pattern classification methods have been successfully applied to decode orientation of visual grating stimuli from BOLD fMRI activity recorded in human visual cortex (Kamitani and Tong, 2005; Haynes and Rees, 2005) [12], [10]. Though there has been extensive research investigating the true spatial scale of the orientation specific signals (Op de Beeck, 2010; Swisher et al., 2010; Alink et al., 2013; Freeman et al., 2011, 2013) [2], [15], [1], [4], [5], it remained inconclusive what spatial acquisition resolution is required, or is optimal, for decoding analyses...
August 2017: Data in Brief
https://www.readbyqxmd.com/read/28611613/simultaneous-processing-of-noun-cue-and-to-be-produced-verb-in-verb-generation-task-electromagnetic-evidence
#17
Anna V Butorina, Anna A Pavlova, Anastasia Y Nikolaeva, Andrey O Prokofyev, Denis P Bondarev, Tatiana A Stroganova
A long-standing but implicit assumption is that words strongly associated with a presented cue are automatically activated in the memory through rapid spread of activation within brain semantic networks. The current study was aimed to provide direct evidence of such rapid access to words' semantic representations and to investigate its neural sources using magnetoencephalography (MEG) and distributed source localization technique. Thirty-three neurotypical subjects underwent the MEG recording during verb generation task, which was to produce verbs related to the presented noun cues...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28611513/brain-changes-detected-by-functional-magnetic-resonance-imaging-and-spectroscopy-in-patients-with-crohn-s-disease
#18
REVIEW
Kun Lv, Yi-Hong Fan, Li Xu, Mao-Sheng Xu
Crohn's disease (CD) is a chronic, non-specific granulomatous inflammatory disorder that commonly affects the small intestine and is a phenotype of inflammatory bowel disease (IBD). CD is prone to relapse, and its incidence displays a persistent increase in developing countries. However, the pathogenesis of CD is poorly understood, with some studies emphasizing the link between CD and the intestinal microbiota. Specifically, studies point to the brain-gut-enteric microbiota axis as a key player in the occurrence and development of CD...
May 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28610902/post-stimulus-fmri-and-eeg-responses-evidence-for-a-neuronal-origin-hypothesised-to-be-inhibitory
#19
K J Mullinger, M T Cherukara, R B Buxton, S T Francis, S D Mayhew
Post-stimulus undershoots, negative responses following cessation of stimulation, are widely observed in functional magnetic resonance (fMRI) blood oxygenation level dependent (BOLD) data. However, the debate surrounding whether the origin of this response phase is neuronal or vascular, and whether it provides functionally relevant information, that is additional to what is contained in the primary response, means that undershoots are widely overlooked. We simultaneously recorded electroencephalography (EEG), BOLD and cerebral blood-flow (CBF) [obtained from arterial spin labelled (ASL) fMRI] fMRI responses to hemifield checkerboard stimulation to test the potential neural origin of the fMRI post-stimulus undershoot...
June 10, 2017: NeuroImage
https://www.readbyqxmd.com/read/28610039/a-new-limestone-dwelling-leaf-toed-gecko-gekkonidae-i-dixonius-i-from-khao-sam-roi-yot-massif-peninsular-thailand
#20
Montri Sumontha, Nirut Chomngam, Eakarit Phanamphon, Parinya Pawangkhanant, Chutinton Viriyapanon, Wanlada Thanaprayotsak, Olivier S G Pauwels
We describe Dixonius kaweesaki sp. nov. from Khao Daeng, a limestone mountain in Khao Sam Roi Yot massif, Prachuap Khiri Khan Province, peninsular Thailand. It is diagnosed from all other species by a combination of maximal SVL of 41.6 mm; 12 or 13 longitudinal rows of dorsal tubercles; 24 longitudinal rows of ventrals across the abdomen; a continuous series of 9-11 precloacal pores in males, no pores in females; and two bold dark stripes from the snout to the base of the tail separated by a contrasting light vertebral stripe...
March 30, 2017: Zootaxa
keyword
keyword
92406
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"