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https://www.readbyqxmd.com/read/28415374/explicit-calculation-of-nuclear-magnetic-resonance-relaxation-rates-in-small-pores-to-elucidate-molecular-scale-fluid-dynamics
#1
D A Faux, P J McDonald
Nuclear-magnetic-resonance (NMR) spin-lattice (T_{1}^{-1}) and spin-spin (T_{2}^{-1}) relaxation rate measurements can act as effective nondestructive probes of the nanoscale dynamics of ^{1}H spins in porous media. In particular, fast-field-cycling T_{1}^{-1} dispersion measurements contain information on the dynamics of diffusing spins over time scales spanning many orders of magnitude. Previously published experimental T_{1}^{-1} dispersions from a plaster paste, synthetic saponite, mortar, and oil-bearing shale are reanalyzed using a model and associated theory which describe the relaxation rate contributions due to the interaction between spin ensembles in quasi-two-dimensional pores...
March 2017: Physical Review. E
https://www.readbyqxmd.com/read/28415296/nuclear-magnetic-resonance-relaxation-due-to-the-translational-diffusion-of-fluid-confined-to-quasi-two-dimensional-pores
#2
D A Faux, P J McDonald, N C Howlett
Nuclear-magnetic-resonance (NMR) relaxation experimentation is an effective technique for nondestructively probing the dynamics of proton-bearing fluids in porous media. The frequency-dependent relaxation rate T_{1}^{-1} can yield a wealth of information on the fluid dynamics within the pore provided data can be fit to a suitable spin diffusion model. A spin diffusion model yields the dipolar correlation function G(t) describing the relative translational motion of pairs of ^{1}H spins which then can be Fourier transformed to yield T_{1}^{-1}...
March 2017: Physical Review. E
https://www.readbyqxmd.com/read/28392697/comparing-the-ability-of-cognitive-and-affective-theory-of-mind-in-adolescent-onset-schizophrenia
#3
Dandan Li, Xiaosi Li, Fengqiong Yu, Xingui Chen, Long Zhang, Dan Li, Qiang Wei, Qing Zhang, Chunyan Zhu, Kai Wang
BACKGROUND: Evidence in the literature suggests that there is an impairment of social cognition in schizophrenia. Theory of Mind (ToM) is defined as one's ability to understand others' wishes, beliefs, intentions, and other psychological states and thereby to judge others' behavior, as an essential component of social cognition. However, there have been limited studies on social cognition, especially ToM in adolescent onset schizophrenia (AOS). The current study aims to investigate ToM abilities in adolescent schizophrenia according to various ToM subcomponents (cognitive ToM and affective ToM) and various ToM orders (first order and second order)...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28360809/social-cognition-in-schizophrenia-patients-and-their-first-degree-relatives
#4
Rukiye Ay, Ömer Böke, Ozan Pazvantoğlu, Ahmet Rıfat Şahin, Gökhan Sarisoy, Ali Cezmi Arik, Hatice Güz
INTRODUCTION: Social cognition is a person's ability to configure the designs of relationships between themselves and others and to use these designs to guide social behaviors in a flexible manner. The models that are the most studied and describe social cognition are the theory of mind (ToM) and emotion recognition. This study was aimed to detect ToM and emotion recognition disorders in schizophrenia patients and their first-degree relatives. METHODS: Thirty schizophrenia patients in remission, the first-degree relatives of schizophrenia patients (n=30), and 30 healthy volunteers who were paired with the patients in terms of age and duration of education were included in the study...
December 2016: Noro Psikiyatri Arsivi
https://www.readbyqxmd.com/read/28286963/rehabilitation-and-education-are-underutilized-for-mild-stroke-and-tia-sufferers
#5
Steven G Faux, Pooja Arora, Christine T Shiner, Angelica G Thompson-Butel, Linda A Klein
PURPOSE: Transient ischemic attack (TIA) and mild stroke represent a large proportion of cerebrovascular events, at high risk of being followed by recurrent, serious events. The importance of early education addressing risk management, secondary prevention and lifestyle modifications is the centerpiece of further stroke prevention. However, delivering education and rehabilitation to this population can be complex and challenging. METHODS: Via synthesis of a narrative review and clinical experience, we explore the unique and inherent complexities of rehabilitation management and education provision for patients following mild stroke and TIA...
March 12, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28258253/quality-of-acute-care-and-long-term-quality-of-life-and-survival-the-australian-stroke-clinical-registry
#6
Dominique A Cadilhac, Nadine E Andrew, Natasha A Lannin, Sandy Middleton, Christopher R Levi, Helen M Dewey, Brenda Grabsch, Steve Faux, Kelvin Hill, Rohan Grimley, Andrew Wong, Arman Sabet, Ernest Butler, Christopher F Bladin, Timothy R Bates, Patrick Groot, Helen Castley, Geoffrey A Donnan, Craig S Anderson
BACKGROUND AND PURPOSE: Uncertainty exists over whether quality improvement strategies translate into better health-related quality of life (HRQoL) and survival after acute stroke. We aimed to determine the association of best practice recommended interventions and outcomes after stroke. METHODS: Data are from the Australian Stroke Clinical Registry during 2010 to 2014. Multivariable regression was used to determine associations between 3 interventions: received acute stroke unit (ASU) care and in various combinations with prescribed antihypertensive medication at discharge, provision of a discharge care plan, and outcomes of survival and HRQoL (EuroQoL 5-dimensional questionnaire visual analogue scale) at 180 days, by stroke type...
March 3, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28225838/-mental-simulation-in-frontotemporal-dementia
#7
Daniel G Politis, Wanda Y Rubinstein, María E Tabernero
There is a common network for perception and execution of actions necessary for the acquisition of Theory of Mind, and the mirror neuron system could be the neural substrate. OBJECTIVE: To study the presence of apraxia and their relationship to Theory of Mind in patients with behavioral variant of Frontotemporal Dementia. METHODS: 24 patients were assessed, and the cognitive praxis assessment battery and theory of mind were administered. RESULTS: All the tasks of the cognitive praxis assessment battery showed a significant correlation with the first order False Believe task, while Faces Test showed correlations with all the battery tasks except Auditory verbal income...
May 2016: Vertex: Revista Argentina de Psiquiatriá
https://www.readbyqxmd.com/read/28216119/does-previous-use-affect-litter-box-appeal-in-multi-cat-households
#8
J J Ellis, R T S McGowan, F Martin
It is commonly assumed that cats actively avoid eliminated materials (especially in multi-cat homes), suggesting regular litter box cleaning as the best defense against out-of-box elimination. The relationship between previous use and litter box appeal to familiar subsequent users is currently unknown. The purpose of this study was to investigate the relationship between previous litter box use and the identity of the previous user, type of elimination, odor, and presence of physical/visual obstructions in a multi-cat household scenario...
February 13, 2017: Behavioural Processes
https://www.readbyqxmd.com/read/28205575/cu-ii-atsm-improves-the-neurological-phenotype-and-survival-of-sod1-g93a-mice-and-selectively-increases-enzymatically-active-sod1-in-the-spinal-cord
#9
James B Hilton, Stephen W Mercer, Nastasia K H Lim, Noel G Faux, Gojko Buncic, Joseph S Beckman, Blaine R Roberts, Paul S Donnelly, Anthony R White, Peter J Crouch
Ubiquitous expression of mutant Cu/Zn-superoxide dismutase (SOD1) selectively affects motor neurons in the central nervous system (CNS), causing the adult-onset degenerative disease amyotrophic lateral sclerosis (ALS). The CNS-specific impact of ubiquitous mutant SOD1 expression is recapitulated in transgenic mouse models of the disease. Here we present outcomes for the metallo-complex Cu(II)(atsm) tested for therapeutic efficacy in mice expressing SOD1(G93A) on a mixed genetic background. Oral administration of Cu(II)(atsm) delayed the onset of neurological symptoms, improved locomotive capacity and extended overall survival...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28167746/randomised-controlled-trial-examining-the-effect-of-an-outpatient-exercise-training-programme-on-haemodynamics-and-cardiac-mr-parameters-of-right-ventricular-function-in-patients-with-pulmonary-arterial-hypertension-the-expah-study-protocol
#10
Karen S W Chia, Steven G Faux, Peter K K Wong, Cameron Holloway, Hassan Assareh, Craig S McLachlan, Eugene Kotlyar
INTRODUCTION: Pulmonary hypertension (PH) is a potentially life-threatening condition characterised by elevated pulmonary artery pressure. Early stage PH patients are often asymptomatic. Disease progression is associated with impairment of right ventricular function and progressive dyspnoea. Current guidelines recommend exercise training (grade IIa, level B). However, many questions remain regarding the mechanisms of improvement, intensity of supervision and optimal frequency, duration and intensity of exercise...
February 6, 2017: BMJ Open
https://www.readbyqxmd.com/read/28125169/the-additional-value-of-different-radiographic-views-on-identification-of-early-radiographic-hip-and-knee-osteoarthritis-and-its-progression-the-check-cohort-hip-and-cohort-knee-study
#11
Jurgen Damen, Jos Runhaar, Margreet Kloppenburg, Rik Meijer, Sita M A Bierma-Zeinstra, Edwin H G Oei
Objective To investigate the prevalence and progression of early radiographic osteoarthritis (ROA) of the hip and knee on different radiographic views, to determine whether different radiographic views have additional value in detecting early hip and knee ROA cases, or progression. Methods In the CHECK cohort (N=1002) five different radiographs were obtained: an anteroposterior (AP) and faux profile view of the hips and a posteroanterior (PA), mediolateral (ML) and skyline view of the knees. Prevalence of ROA was estimated based on each view separately and in combinations...
January 26, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28048962/chemical-ecology-of-wave-swept-shores-the-primacy-of-contact-cues-in-predation-by-whelks
#12
Graham A Ferrier, Cheryl Ann Zimmer, Richard K Zimmer
Wave-swept shores are valuable for developing and testing key ecological principles. A synthesis of research is nonetheless missing a critical component: the chemosensory basis for behavioral interactions that determine population- and community-wide attributes. Chemical signaling environments on wave-swept shores, given their intense, turbulent mixing and complex topographies, would be difficult or impossible to simulate in a laboratory setting. For this reason, appropriately scaled field studies are needed to advance understanding of chemical stimuli and their biotic effects...
December 2016: Biological Bulletin
https://www.readbyqxmd.com/read/27974378/architecture-of-the-yeast-elongator-complex
#13
Maria I Dauden, Jan Kosinski, Olga Kolaj-Robin, Ambroise Desfosses, Alessandro Ori, Celine Faux, Niklas A Hoffmann, Osita F Onuma, Karin D Breunig, Martin Beck, Carsten Sachse, Bertrand Séraphin, Sebastian Glatt, Christoph W Müller
The highly conserved eukaryotic Elongator complex performs specific chemical modifications on wobble base uridines of tRNAs, which are essential for proteome stability and homeostasis. The complex is formed by six individual subunits (Elp1-6) that are all equally important for its tRNA modification activity. However, its overall architecture and the detailed reaction mechanism remain elusive. Here, we report the structures of the fully assembled yeast Elongator and the Elp123 sub-complex solved by an integrative structure determination approach showing that two copies of the Elp1, Elp2, and Elp3 subunits form a two-lobed scaffold, which binds Elp456 asymmetrically...
February 2017: EMBO Reports
https://www.readbyqxmd.com/read/27936120/sweat-facilitated-amino-acid-losses-in-male-athletes-during-exercise-at-32-34%C3%A2-c
#14
R Hugh Dunstan, Diane L Sparkes, Benjamin J Dascombe, Margaret M Macdonald, Craig A Evans, Christopher J Stevens, Marcus J Crompton, Johan Gottfries, Jesse Franks, Grace Murphy, Ryan Wood, Timothy K Roberts
Sweat contains amino acids and electrolytes derived from plasma and athletes can lose 1-2L of sweat per hour during exercise. Sweat may also contain contributions of amino acids as well as urea, sodium and potassium from the natural moisturizing factors (NMF) produced in the stratum corneum. In preliminary experiments, one participant was tested on three separate occasions to compare sweat composition with surface water washings from the same area of skin to assess contributions from NMF. Two participants performed a 40 minute self-paced cycle session with sweat collected from cleansed skin at regular intervals to assess the contributions to the sweat load from NMF over the period of exercise...
2016: PloS One
https://www.readbyqxmd.com/read/27902803/alphasim-software-for-breeding-program-simulation
#15
Anne-Michelle Faux, Gregor Gorjanc, R Chris Gaynor, Mara Battagin, Stefan M Edwards, David L Wilson, Sarah J Hearne, Serap Gonen, John M Hickey
This paper describes AlphaSim, a software package for simulating plant and animal breeding programs. AlphaSim enables the simulation of multiple aspects of breeding programs with a high degree of flexibility. AlphaSim simulates breeding programs in a series of steps: (i) simulate haplotype sequences and pedigree; (ii) drop haplotypes into the base generation of the pedigree and select single-nucleotide polymorphism (SNP) and quantitative trait nucleotide (QTN); (iii) assign QTN effects, calculate genetic values, and simulate phenotypes; (iv) drop haplotypes into the burn-in generations; and (v) perform selection and simulate new generations...
November 2016: Plant Genome
https://www.readbyqxmd.com/read/27893873/association-of-cerebrospinal-fluid-ferritin-level-with-preclinical-cognitive-decline-in-apoe-%C3%AE%C2%B54-carriers
#16
Scott Ayton, Noel G Faux, Ashley I Bush
No abstract text is available yet for this article.
January 1, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/27875567/transforming-water-social-influence-moderates-psychological-physiological-and-functional-response-to-a-placebo-product
#17
Alia J Crum, Damon J Phillips, J Parker Goyer, Modupe Akinola, E Tory Higgins
This paper investigates how social influence can alter physiological, psychological, and functional responses to a placebo product and how such responses influence the ultimate endorsement of the product. Participants consumed a product, "AquaCharge Energy Water," falsely-labeled as containing 200 mg of caffeine but which was actually plain spring water, in one of three conditions: a no social influence condition, a disconfirming social influence condition, and a confirming social influence condition. Results demonstrated that the effect of the product labeling on physiological alertness (systolic blood pressure), psychological alertness (self-reported alertness), functional alertness (cognitive interference), and product endorsement was moderated by social influence: participants experienced more subjective, physiological and functional alertness and stronger product endorsement when they consumed the product in the confirming social influence condition than when they consumed the product in the disconfirming social influence condition...
2016: PloS One
https://www.readbyqxmd.com/read/27837572/clinical-and-cognitive-factors-affecting-psychosocial-functioning-in-remitted-patients-with-bipolar-disorder
#18
G Konstantakopoulos, N Ioannidi, M Typaldou, D Sakkas, P Oulis
Impaired interpersonal, social, and occupational functioning is very often observed in patients with bipolar disorder, not only at the acute stages of the illness but in remission as well. This finding raises the question of multiple factors that might affect psychosocial functioning in bipolar patients, such as residual subsyndromal symptoms and neuropsychological deficits. Social cognition impairment, especially impaired Theory of Mind (ToM), might also play an important role in bipolar patients' every-day functioning, similarly to what was found in patients with schizophrenia...
July 2016: Psychiatrikē, Psychiatriki
https://www.readbyqxmd.com/read/27810518/social-cognition-in-juvenile-myoclonic-epilepsy
#19
Filippo S Giorgi, Melania Guida, Lorenzo Caciagli, Cristina Pagni, Chiara Pizzanelli, Enrica Bonanni, Gloria Tognoni, Ubaldo Bonuccelli
OBJECTIVE: Juvenile Myoclonic Epilepsy (JME) is a common genetic generalized epilepsy syndrome. Several studies have detailed cognitive and imaging abnormalities pointing to frontal lobe dysfunction, as well as disadvantageous behavioral traits and poor social outcome, challenging the commonly held view of JME being a benign disorder. Social cognition is the ability to elaborate mental representations of social interactions and to use them correctly in social contexts, and includes Theory of Mind (ToM), which pertains to the attribution of cognitive and affective mental states to self and others and seems to rely on complex fronto-temporal interactions...
December 2016: Epilepsy Research
https://www.readbyqxmd.com/read/27646536/ngs-based-reverse-genetic-screen-for-common-embryonic-lethal-mutations-compromising-fertility-in-livestock
#20
Carole Charlier, Wanbo Li, Chad Harland, Mathew Littlejohn, Wouter Coppieters, Frances Creagh, Steve Davis, Tom Druet, Pierre Faux, François Guillaume, Latifa Karim, Mike Keehan, Naveen Kumar Kadri, Nico Tamma, Richard Spelman, Michel Georges
We herein report the result of a large-scale, next generation sequencing (NGS)-based screen for embryonic lethal (EL) mutations in Belgian beef and New Zealand dairy cattle. We estimated by simulation that cattle might carry, on average, ∼0.5 recessive EL mutations. We mined exome sequence data from >600 animals, and identified 1377 stop-gain, 3139 frame-shift, 1341 splice-site, 22,939 disruptive missense, 62,399 benign missense, and 92,163 synonymous variants. We show that cattle have a comparable load of loss-of-function (LoF) variants (defined as stop-gain, frame-shift, or splice-site variants) as humans despite having a more variable exome...
October 2016: Genome Research
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