67 results match your criteria: "University of Western Sydney Sydney[Affiliation]"

Background: Indonesian community pharmacies hold a strategic position from which to promote the rational use of medicines by providing appropriate advice for patients requesting self-medication. To date, published studies related to the provision of advice in Indonesian community pharmacies are limited and have been conducted only in more developed western Indonesia. No studies have been undertaken in eastern Indonesia, which is less developed than and culturally different from the western region.

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Asbestosis is diagnosed with a combination of historical, clinical and radiological findings in the absence of another cause. Histology is required when uncertainty exists, with lung biopsy via VATs being gold standard. Transbronchial cryobiopsy is becoming increasingly popular for diagnosing interstitial lung disease and may provide sufficient lung sample to demonstrate asbestosis.

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Alveolar capillary dysplasia (ACD) is a rare condition with variable presentation and clinical course. Clinicians should consider this diagnosis in neonates presenting with nonlethal congenital gastrointestinal malformation, a period of well-being after birth then unremitting hypoxemia and refractory pulmonary hypertension. Lung biopsy and gene testing may help in diagnosis.

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To examine whether exercise induced muscle damage (EIMD) and muscle soreness reduce treadmill maximal incremental exercise (MIE) test duration, and true maximal physiological performance as a consequence of exercise induced pain (EIP) and perceived effort. Fifty (14 female), apparently healthy participants randomly allocated into a control group (CON, = 10), or experimental group (EXP, = 40) visited the laboratory a total of six times: visit 1 (familiarization), visit 2 (pre 1), visit 3 (pre 2), visit 4 (intervention), visit 5 (24 h post) and visit 6 (48 h post). Both groups performed identical testing during all visits, except during visit 4, where only EXP performed a 30 min downhill run and CON performed no exercise.

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It has been widely recognized that closed-loop neuroprosthetic systems achieve more favorable outcomes for users then equivalent open-loop devices. Improved performance of tasks, better usability, and greater embodiment have all been reported in systems utilizing some form of feedback. However, the interdisciplinary work on neuroprosthetic systems can lead to miscommunication due to similarities in well-established nomenclature in different fields.

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Introduction: Forms of childhood trauma tend to co-occur and are associated with increased risk for psychiatric and substance use disorders. Commonly used binary measures of trauma exposure have substantial limitations.

Methods: We performed multigroup confirmatory factor analysis (CFA), separately by sex, using data from the Childhood Trauma (CT) Study's sample of twins and siblings (N = 2594) to derive three first-order factors (childhood physical abuse, childhood sexual abuse, and parental partner abuse) and, as hypothesized, one higher order, childhood trauma factor (CTF) representing a measure of their common variance.

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The incidence of cardiovascular events is significantly higher in the morning than other times of day. This has previously been associated with poor blood pressure control via the cardiac baroreflex. However, it is not known whether diurnal variation exists in vascular sympathetic baroreflex function, in which blood pressure is regulated via muscle sympathetic nerve activity (MSNA).

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The human auditory system has the ability to segregate complex auditory scenes into a foreground component and a background, allowing us to listen to specific speech sounds from a mixture of sounds. Selective attention plays a crucial role in this process, colloquially known as the "cocktail party effect." It has not been possible to build a machine that can emulate this human ability in real-time.

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Learning to perceive and recognize a second language: the L2LP model revised.

Front Psychol

August 2015

The MARCS Institute and ARC Centre of Excellence for the Dynamics of Language, University of Western Sydney Sydney, NSW, Australia.

We present a test of a revised version of the Second Language Linguistic Perception (L2LP) model, a computational model of the acquisition of second language (L2) speech perception and recognition. The model draws on phonetic, phonological, and psycholinguistic constructs to explain a number of L2 learning scenarios. However, a recent computational implementation failed to validate a theoretical proposal for a learning scenario where the L2 has less phonemic categories than the native language (L1) along a given acoustic continuum.

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The influence of trial order on learning from reward vs. punishment in a probabilistic categorization task: experimental and computational analyses.

Front Behav Neurosci

August 2015

Department of Veterans Affairs, New Jersey Health Care System East Orange, NJ, USA ; Department of Pharmacology, Physiology and Neuroscience, Rutgers-New Jersey Medical School Newark, NJ, USA ; Department of Psychology, Rutgers University-Newark Newark, NJ, USA.

Previous research has shown that trial ordering affects cognitive performance, but this has not been tested using category-learning tasks that differentiate learning from reward and punishment. Here, we tested two groups of healthy young adults using a probabilistic category learning task of reward and punishment in which there are two types of trials (reward, punishment) and three possible outcomes: (1) positive feedback for correct responses in reward trials; (2) negative feedback for incorrect responses in punishment trials; and (3) no feedback for incorrect answers in reward trials and correct answers in punishment trials. Hence, trials without feedback are ambiguous, and may represent either successful avoidance of punishment or failure to obtain reward.

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Integrating optical finger motion tracking with surface touch events.

Front Psychol

June 2015

Centre for Digital Music, School of Electronic Engineering and Computer Science, Queen Mary University of London London, UK.

This paper presents a method of integrating two contrasting sensor systems for studying human interaction with a mechanical system, using piano performance as the case study. Piano technique requires both precise small-scale motion of fingers on the key surfaces and planned large-scale movement of the hands and arms. Where studies of performance often focus on one of these scales in isolation, this paper investigates the relationship between them.

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A spiking Basal Ganglia model of synchrony, exploration and decision making.

Front Neurosci

June 2015

Marcs Institute for Brain and Behaviour and School of Social Sciences and Psychology, University of Western Sydney Sydney, NSW, Australia.

To make an optimal decision we need to weigh all the available options, compare them with the current goal, and choose the most rewarding one. Depending on the situation an optimal decision could be to either "explore" or "exploit" or "not to take any action" for which the Basal Ganglia (BG) is considered to be a key neural substrate. In an attempt to expand this classical picture of BG function, we had earlier hypothesized that the Indirect Pathway (IP) of the BG could be the subcortical substrate for exploration.

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We present a neuromorphic implementation of multiple synaptic plasticity learning rules, which include both Spike Timing Dependent Plasticity (STDP) and Spike Timing Dependent Delay Plasticity (STDDP). We present a fully digital implementation as well as a mixed-signal implementation, both of which use a novel dynamic-assignment time-multiplexing approach and support up to 2(26) (64M) synaptic plasticity elements. Rather than implementing dedicated synapses for particular types of synaptic plasticity, we implemented a more generic synaptic plasticity adaptor array that is separate from the neurons in the neural network.

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On and Off switches in the brain.

Front Behav Neurosci

May 2015

Department of Veterans Affairs East Organge, New Jersey, USA ; Marcs Institute for Brain and Behaviour and School of Social Sciences and Psychology, University of Western Sydney Sydney, NSW, Australia.

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The dependence of neuronal encoding efficiency on Hebbian plasticity and homeostatic regulation of neurotransmitter release.

Front Cell Neurosci

May 2015

Department of Veterans Affairs, New Jersey Health Care System East Orange, NJ, USA ; School of Social Sciences and Psychology and Marcs Institute for Brain and Behavior, University of Western Sydney Sydney, NSW, Australia.

Synapses act as information filters by different molecular mechanisms including retrograde messenger that affect neuronal spiking activity. One of the well-known effects of retrograde messenger in presynaptic neurons is a change of the probability of neurotransmitter release. Hebbian learning describe a strengthening of a synapse between a presynaptic input onto a postsynaptic neuron when both pre- and postsynaptic neurons are coactive.

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In some languages (such as Dutch), speakers produce duration differences between vowels, but it is unclear whether they also encode short versus long speech sounds into different phonological categories. To examine whether they have abstract representations for 'short' versus 'long' contrasts, we assessed Dutch listeners' perceptual sensitivity to duration in two vowel qualities: [a] and [ɑ], as in the words maan 'moon' and man 'man,' which are realized with long and short duration respectively. If Dutch represents this phonetic durational difference as a 'short'-'long' contrast in its phonology, duration changes in [a] and [ɑ] should elicit similar neural responses [specifically, the mismatch negativity (MMN)].

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Aim: To explore the experiences of Australian nurses and midwives who perceived themselves as resilient. The focus of this paper is to report the strategies used by a group of nurses and midwives to develop and maintain their resilience, despite encountering serious workplace adversity.

Background: Despite the potentially adverse effects of nursing work, many nurses and midwives thrive through exercising self-efficacy and coping skills.

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A computational model of pattern separation efficiency in the dentate gyrus with implications in schizophrenia.

Front Syst Neurosci

April 2015

Department of Veterans Affairs, VA New Jersey Health Care System East Orange, NJ, USA ; School of Social Sciences and Psychology and Marcs Institute for Brain and Behaviour, University of Western Sydney Sydney NSW, Australia.

Information processing in the hippocampus begins by transferring spiking activity of the entorhinal cortex (EC) into the dentate gyrus (DG). Activity pattern in the EC is separated by the DG such that it plays an important role in hippocampal functions including memory. The structural and physiological parameters of these neural networks enable the hippocampus to be efficient in encoding a large number of inputs that animals receive and process in their life time.

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This article investigates the extent of production and perception of dynamic differences on a French historical harpsichord, extensively revised in 1788 by Pascal Taskin. A historical review reports on the descriptions of two different types of touch found in treatises of the 18th century. These two touches (loud/struck and soft/pressed) were used to perform single tones on the lower, upper, peau de buffle (PDB) registers (the last of which Taskin is credited with having invented) and the coupled 8-foot registers to investigate differences in dynamics.

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On the relationship among different motor processes: a computational modeling approach.

Front Comput Neurosci

April 2015

Department of Veterans Affairs, Marcs Institute for Brain and Behaviour and School of Social Sciences and Psychology, University of Western Sydney Sydney, NSW, Australia.

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