... of social experience early in their life, one can produce abnormalities in their ... causation of abnormal and normal behaviour in the development of an ...

For some time, dystonia has been seen as purely a motor disorder. Relatively novel concepts published approximately 10 years ago also presumed that in the development of dystonic dyskinesias, only motor behaviour was abnormal. Neurophysiological observations of various types of dystonic disorders, which were performed using sophisticated electromyography, ...

... Accession Number : ADD325757. Title : MAGNETIC FORCES AND MECHANICAL BEHAVIOUR OF FERROMAGNETIC MATERIALS. ...

The magnetic response of AISI 304L and AISI 316L obtained through powder metallurgy and sintered in nitrogen were studied. AISI 304L sintered in nitrogen showed a ferromagnetic behaviour in as-sintered state while AISI 316L was paramagnetic. After solution annealing both were paramagnetic. Magnetic behaviour was ...

We have investigated the low-temperature magnetism and spin�lattice coupling in (Bi0.46Na0.46Ba0.08)TiO3:Co in order to understand the magnetoelectric effect in such artificially synthesized dilute magnetic ferroelectrics. It is revealed that the as-prepared (Bi0.46Na0.46Ba0.08)TiO3:Co at Co content of 20%~30% exhibits fascinating ferrimagnetism which is ...

in the current study and were native English speakers. All experi- mental procedures were in compliance. Insular cortex abnormalities in schizophrenia: a structural magnetic resonance imaging study of first-episode patients. Schizophrenia Research 2000;46:35�43. Damasio AR, Grabowski TJ, Bechara A, Damasio H, Ponto LL

... when there is no obvious cause, even after testing Abnormal results ... magnetic resonance imaging of blood vessels (magnetic resonance angiography) ...

BackgroundThere is growing evidence that inhalants are neurotoxic to white matter, yet limited work has been conducted to investigate the neurobiologic effects of long-term exposure among adolescent users, despite inhalant use being most prominent during this developmental period.MethodsWe used diffusion tensor imaging to examine white-matter integrity in 11 adolescents who used inhalants, 11 ...

Two children with mild epilepsy and learning and behaviour problems had magnetic resonance imaging (MRI) scans showing an almost identical generalised disorders of neuronal migration. Their computer tomography (CT) scans showed abnormal hypodense white matter. The MRI showed a four layered appearance of the cerebral parenchyma ...

... Technologies fine particles, abnormality of atomic magnetic moment, This research is aimed at development, on the basis of a ...

Abnormal grain growth was found in sintered Nd-Fe-B magnets which are made from powder milled after hydrogen decrepitation. The abnormal grain size in the magnets sintered at 1000 {degree}C for 1.5 h was as large as 400 {mu}m. The formation of abnormally large grains reduced the ...

NiZn ferrite particles were prepared by ultrasonic spray pyrolysis with a mixed solution of aqueous metal nitrates. A nanoporous structure of the NiZn ferrite particles was observed by electron microscopy. The structure formed with nanosized primary particles of about 10 nm or less before annealing, which showed paramagnetic behaviour measured at 77 K and room temperature. The ...

BackgroundMany captive chimpanzees (Pan troglodytes) show a variety of serious behavioural abnormalities, some of which have been considered as possible signs of compromised mental health. The provision of environmental enrichments aimed at reducing the performance of abnormal behaviours is increasing the norm, ...

Background: Although autism spectrum disorder (ASD) and attention deficit/hyperactivity disorder (ADHD) are two distinct neurodevelopmental diseases, they share behavioural, neuropsychological and neurobiological characteristics. For the identification of endophenotypes across diagnostic categories, further investigations of phenotypic overlap between ADHD and autism at the ...

Joubert syndrome is characterized by episodes of abnormal respiratory pattern, oculomotor findings, hypotonia, ataxia, developmental retardation with evidence of neuropathologic abnormalities of cerebellum

... Abstract : THIS LETTER REPORTS THE RESULTS OF A STUDY OF THE STRUCTURE OF A COMMON MAGNETIC PARTICLE INSPECTION INK ...

Intelligence on abnormal and suspicious behaviour along roads in operational domains is extremely valuable for countering the IED (Improvised Explosive Device) threat. Local sensor networks at strategic spots can gather data for continuous monitoring of daily vehicle activity. Unattended intelligent ground sensor networks use simple sensing nodes, e.g. ...

The causes of dyslexia are unknown, but previous studies have suggested an immunological basis in some cases. We hypothesised that maternal antibodies, which cross the placenta and bind to fetal antigens, could be responsible, particularly when the dyslexia recurs in consecutive pregnancies. We injected serum samples from five mothers of two or more children with dyslexia into pregnant mice, and ...

Yoshida T, Sasayama H, Mizuta I, Okamoto Y, Yoshida M, Riku Y, Hayashi Y, Yonezu T, Takata Y, Ohnari K, Okuda S, Aiba I, Nakagawa M. Glial fibrillary acidic protein mutations in adult-onset Alexander disease: clinical features observed in 12 Japanese patients. Acta Neurol Scand: 2011: 124: 104-108. � 2010 John Wiley & Sons A/S. Objective?-? To clarify the clinical manifestations of ...

Functional Magnetic Resonance Imaging of Early Visual Pathways in Dyslexia Jonathan B. Demb of dyslexic and normal readers to test the hypothesis that dyslexia is associated with an abnormality pathway abnormality in dyslexia and imply strong relationships between the integrity of the M pathway

Static modelling of magnetic bearings is often carried out using magnetic circuit theory. This theory cannot easily include nonlinear effects such as magnetic saturation or the fringing of flux in air-gaps. Modern computational tools are able to accuratel...

... Magnetic resonance imaging (MRI) is commonly used as an imaging tool for detecting and diagnosing abnormalities and diseases in soft tissue. ...

... most common autosomal dominant genetic disorder, affecting the ... ABNORMALITIES, *MENTAL DISORDERS, *MAGNETIC RESONANCE ...

... abnormalities more clearly. In most MRI devices, an electric current is passed ... in the machine, and these signals are used to produce digital ...

... detects abnormal electrical activity in the brain, and magnetic resonance ... additional testing, which may include video EEG monitoring, carotic amytal ...

Endothelial Dysfunction; Myocardial Perfusion Abnormalities; Cardiac MRI Perfusion With Vasomotor Stress; Diabetes

INTRODUCTION: Antisocial personality disorder (ASPD) and psychopathy involve significant interpersonal and behavioural impairments. However, little is known about their underlying neurobiology and in particular, abnormalities in white matter (WM) microstructure. A preliminary diffusion tensor magnetic resonance imaging (DT-MRI) study ...

... Accession Number : ADD121836. Title : Measurement of Sensitization Behaviour in Ni-Based Alloy 600 by Means of Magnetic Property,. ...

The internalization and biocompatibility of iron oxide nanoparticles surface functionalized with four differently charged carbohydrates have been tested in the human cervical carcinoma cell line (HeLa). Neutral, positive, and negative iron oxide nanoparticles were obtained by coating with dextran, aminodextran, heparin, and dimercaptosuccinic acid, resulting in colloidal suspensions stable at pH 7 ...

Case report of true necrophilia in a seventeen-year-old girl, which is the first description of such a behaviour in a woman. The possible development of the abnormal behaviour is discussed. A complete theory of necrophilia semms to be not yet possible because of the few cases described. PMID:981988

The human spinal cord contains segregated sensory and motor pathways that have been difficult to quantify using conventional magnetic resonance imaging (MRI) techniques. Multiple sclerosis is characterized by both focal and spatially diffuse spinal cord lesions with heterogeneous pathologies that have limited attempts at linking MRI and behaviour. We used ...

The anterior cingulate cortex (ACC) is a functionally heterogeneous region involved in diverse cognitive and emotional processes that support goal-directed behaviour. Structural magnetic resonance imaging (MRI) and neuropathological findings over the past two decades have converged to suggest abnormalities in the region may represent a ...

Cognitive dysfunction is a devastating consequence of traumatic brain injury that affects the majority of those who survive with moderate-to-severe injury, and many patients with mild head injury. Disruption of key monoaminergic neurotransmitter systems, such as the dopaminergic system, may play a key role in the widespread cognitive dysfunction seen after traumatic axonal injury. Manifestations ...

Although motor deficits are common in autism, the neural correlates underlying the disruption of even basic motor execution are unknown. Motor deficits may be some of the earliest identifiable signs of abnormal development and increased understanding of their neural underpinnings may provide insight into autism-associated differences in parallel systems critical for control of ...

Although motor deficits are common in autism, the neural correlates underlying the disruption of even basic motor execution are unknown. Motor deficits may be some of the earliest identifiable signs of abnormal development and increased understanding of their neural underpinnings may provide insight into autism-associated differences in parallel systems critical for control of ...

A growing body of preclinical evidence indicates that addiction to cocaine is associated with neuroadaptive changes in frontostriatal brain systems. Human studies in cocaine-dependent individuals have shown alterations in brain structure, but it is less clear how these changes may be related to the clinical phenotype of cocaine dependence characterized by impulsive behaviours ...

A growing body of preclinical evidence indicates that addiction to cocaine is associated with neuroadaptive changes in frontostriatal brain systems. Human studies in cocaine-dependent individuals have shown alterations in brain structure, but it is less clear how these changes may be related to the clinical phenotype of cocaine dependence characterized by impulsive behaviours ...

Magnetic resonance imaging is playing an increasingly important role in evaluation of the injured athlete's foot and ankle. Magnetic resonance imaging allows accurate detection of bony abnormalities, such as stress fractures, and soft-tissue abnormalities, including ligament tears, tendon tears, and tendinopathy. ...

The magnetic behaviour of the glass-covered metallic microwires with a wide compositional range of composition with soft and bard magnetic character is presented. The effect of conventional furnace and dc current annealing under dc axial magnetic field or...

Early expectations that the proximity of the 5f band to the Fermi level would lead to complex magnetic (or almost magnetic) behaviour were correct. Well documented examples of spin-fluctuation systems, itinerant and localized magnetic systems now exist. R...

Stereotypies are repetitive, unvarying and goalless behaviour patterns that are often considered indicative of poor welfare in captive animals. Quantifying stereotypies can be difficult, particularly during the early stages of their development when behaviour is still flexible. We compared two methods for objectively quantifying the development of ...

A diuranium compound featuring an arene bridge shows single-molecule-magnet behaviour, which could arise from a mechanism different from the traditional 'super-exchange' spin coupling.

... Abstract : Magnetic Barkhausen Noise (MBN) was used to evaluate the magnetic behaviour of nuclear reactor pressure vessel steel specimens ...

... PROPERTIES, *RARE EARTH ELEMENTS, REPRINTS, ALUMINUM COMPOUNDS, COPPER COMPOUNDS, INTERMETALLIC COMPOUNDS. ...

... reactor supplied at 50 or 150 Hz; Effects of High AC Magnetic Field Stimulus to the Development and Behaviour of the Nematode; Determining the ...

Behaviour. The possible use of the earth's magnetic field by birds for navigational purposes has been, J. B. 1996. Magnetic navigation. Journal of Theoretical Biology, 180, 309�319. Roper, T. J. 1999ANIMAL BEHAVIOUR, 2003, 65, 729�734 doi:10.1006/anbe.2003.2092 Successful homing of magnet

Many individuals with autism tend to focus on details. It has been suggested that this cognitive style may underlie the presence of stereotyped routines, repetitive interests and behaviours, and both relate in some way to sensory abnormalities. Twenty-nine children with diagnosis of high functioning autism or Asperger syndrome completed the Embedded ...

Psittacines embody in an ideal fashion the child-like characteristics that humans adore. Animal lovers are unable to resist their expressive eyes, brightly coloured plumage, tameness and mimicry of human speech. The desire of pet-owners to have a tame, speaking bird with a very strong bond to its owner is achieved through hand-rearing, but this results in psychoreactive ...

There are a wide variety of congenital midface abnormalities that originate during transformation of the first pair of pharyngeal arches into adult structures. Computed tomography and magnetic resonance imaging are important components in the comprehensive evaluation of these lesions. A detailed understanding of midface embryogenesis and developmental ...

This article reviews recent studies of magnetic resonance imaging and magnetic resonance spectroscopy in dementia, including Alzheimer's disease, frontotemporal dementia, dementia with Lewy bodies, idiopathic Parkinson's disease, Huntington's disease, and vascular dementia. Magnetic resonance imaging and magnetic ...

In recent years, a number of functional and structural neuroimaging studies have investigated the neural bases of aggressive and violent behaviour in children and adolescents. Most functional neuroimaging studies have persued the hypothesis that pathological aggression is a consequence of deficits in the neural circuits involved in emotion processing. There is converging ...

This book is an atlas about thoracic abnormalities in infants and children. The authors include computed tomographic, digital subtraction angiographic, ultrasonographic, and a few magnetic resonance (MR) images. They recognize and discuss how changes in the medical treatment of premature infants and the management of infection and pediatric tumors have ...

Background: Borjeson-Forssman-Lehmann syndrome (BFLs) is an X-linked inherited disorder characterised by unusual facial features, abnormal fat distribution and intellectual disability. As many genetically determined disorders are characterised not only by physical features but also by specific behaviour, we studied whether a specific ...

Rotation-powered radio pulsars are generally observed to pulse regularly in the radio band, but this is not the case for so-called rotating radio transients (RRATs) which emit only sporadic bursts of radio emission. We demonstrate that the high-magnetic field pulsar J1119-6127 exhibits three different types of behaviour in the radio band. Trailing the ...

levels of F2 hybrid lethality, abnormal courtship behaviours in F2 hybrid males (behavioural sterility hybrid males. Both spermatogenic and behavioural sterility of F2 males was examined. All the experiments studies in Drosophila, which indicate a prevalence of hybrid male sterility loci24

growth. Journal of Dermatology 101, 143S�7S Laboratory Animals (2005) 39 Hair and swimming behaviourThe role of hair in swimming of laboratory mice: implications for behavioural studies in animals with abnormal hair A V Kalueff1 and P Tuohimaa2 1 Department of Anatomy, Medical School; 2 Department

A model for non-linear behaviour of a magnetization in strong de Haas van Alphen effect is proposed. It describes correctly measured values of the magnetic induction splitting due to Condon domains in silver, beryllium and aluminium. It is shown that the characteristics of magnetization curve in Condon domain phase ...

Behavioural abnormalities such as impulse control disorders may develop when patients with Parkinson's disease receive dopaminergic therapy, although they can be controlled by deep brain stimulation of the subthalamic nucleus. We have recorded local field potentials in the subthalamic nucleus of 28 patients with surgically implanted subthalamic electrodes. ...

Nuclear magnetic resonance spectroscopy is a powerful method of investigating the relationship between metabolism and function in living tissues. We present evidence that the phosphorus 31 spectra of myometrium and placenta are functions of physiologic state and gestational age. Specific spectroscopic abnormalities are observed in association with ...

We describe a patient with mesial temporal T2-weighted image hyperintensity on magnetic resonance imaging that mimicked paraneoplastic limbic encephalitis. The patient showed pupillary abnormalities suggestive of a diagnosis of neurosyphilis, and the diagnosis was supported by the results of a serum Treponema pallidum hemagglutination assay (TPHA) and ...

Autism is a heterogeneous neurodevelopmental disorder of unknown aetiology that affects 1 in 100�150 individuals. Diagnosis is based on three categories of behavioural criteria: abnormal social interactions, communication deficits and repetitive behaviours. Strong evidence for a genetic basis has prompted the development of mouse ...

Idiopathic rapid eye movement sleep behaviour disorder is an important risk factor in the development of Parkinson's disease. Numerous potential predictive markers of Parkinson's disease may present before motor symptoms emerge, but testing of these markers in rapid eye movement sleep behaviour disorder has been performed only in small studies. There has ...

We give a brief survey of some representative data on crystal structure and magnetic behaviour of binary rare-earth transition metal compounds. We review then the magnetic interactions appearing in RMsub(x)(M = Fe or Co) compounds, as well as the models w...

The magnetic behavior of several niobium wires were studied by the heat pulse ballistic technique. It is shown that the magnetic behavior of a semi- reversible type II superconductor can be understood in terms of a modified Mendelssohn sponge. (C.E.S.)

The motor system comprises a network of cortical and subcortical areas interacting via excitatory and inhibitory circuits, thereby governing motor behaviour. The balance within the motor network may be critically disturbed after stroke when the lesion either directly affects any of these areas or damages-related white matter tracts. A growing body of evidence suggests that ...

The motor system comprises a network of cortical and subcortical areas interacting via excitatory and inhibitory circuits, thereby governing motor behaviour. The balance within the motor network may be critically disturbed after stroke when the lesion either directly affects any of these areas or damages-related white matter tracts. A growing body of evidence suggests that ...

Background? While behavioural abnormalities are fundamental features of Rett syndrome (RTT), few studies have examined the RTT behavioural phenotype. Most of these reports have focused on autistic features, linked to the early regressive phase of the disorder, and few studies have applied standardised behavioural ...

It is shown that the darkening or brightening of a disturbed spot on the Sun's surface is uniquely determined by the abnormal stress distribution in the 'seen layers' of the spot. The magnetic and velocity fields are the sources of the anomalous stress. A...

... that there is abnormal growth of wear intensity (2-3 times) near the Curie point (iron-nickel Invars) and near the Neel temperature (alloy G40), and ...

Spruce sawdust (lignocellulose material) was magnetically modified after contact with a water-based magnetic fluid containing maghemite nanoparticles. This procedure allows one to use the prepared material as a new magnetic affinity adsorbent in magnetic separation techniques. The magnetic ...

Insulin deficiency in type I diabetes may lead to cognitive impairment, cerebral atrophy and white matter abnormalities. We studied the impact of a novel delivery system using intranasal insulin (I-I) in a mouse model of type I diabetes (streptozotocin-induced) for direct targeting of pathological and cognitive deficits while avoiding potential adverse systemic effects. Daily ...

BackgroundObsessive�compulsive disorder (OCD) is a common neuropsychiatric disorder that is characterized by recurrent intrusive thoughts, ideas or images and repetitive ritualistic behaviours. Although focal structural and functional abnormalities in specific brain regions have been widely studied in populations with OCD, changes in the functional ...

Patients with behavioural variant frontotemporal dementia demonstrate abnormalities in behaviour and social cognition, including deficits in emotion recognition. Recent studies suggest that the neuropeptide oxytocin is an important mediator of social behaviour, enhancing prosocial behaviours ...

Magnetic resonance imaging provides superior contrast, resolution, and multiplanar imaging capability, allowing excellent definition of soft-tissue and bone marrow abnormalities. For these reasons, magnetic resonance imaging has become a major diagnostic imaging method for the evaluation of many musculoskeletal disorders. The ...

Neuroimaging methods represent a critical tool in efforts to join the study of the neurobiology of genes with the neurobiology of behaviour, and to understand the neurodevelopmental pathways that give rise to cognitive and behavioural impairments. This article reviews the clinical features and highlights studies with a focus on the relevant ...

The 1-3-bis-chloroethyl-nitrosurea (BCNU)-treated rats represent a good model of cortical dysplasia (CD), as proved by the presence of some histological alterations similar to those observed in human CD, including cortical thinning, laminar disorganization, and heterotopia. The cortical cytoarchitectonics of BCNU-treated rats has been widely investigated by means of histological procedures, ...

Objective The authors examined whether (1)H-magnetic resonance spectroscopy (MRS) can identify damage to the centrum semiovale in the subacute phase after CO exposure. Methods Subjects comprised 29 adult patients who were treated with hyperbaric oxygenation within a range of 4-95 h (mean 18.7 h) after CO exposure. Subjects were classified into three ...

AbstractPrimary progressive aphasia (PPA) is a group of disorders with progressive language impairment. Abnormal behaviour may develop in PPA as the disease evolves, but the clinical features and brain basis of behavioural change in PPA have not been fully defined. 33 PPA patients (9 semantic dementia, SD, 14 progressive nonfluent ...

The present study summarizes an experience with Magnetic Resonance Imaging (MRI) in the evaluation of twelve patients with a variety of cardiac abnormalities (myocardial infarction, mural thrombi, obstructive cardiomyopathy, pericarditis). The results are...

Neuromyelitis optica (NMO) is a demyelinating disease consisting of relapsing-remitting optic neuritis and myelitis with a more severe course than Multiple Sclerosis. Recently, it has been shown that almost 50% of patients with NMO can have brain magnetic resonance imaging (MRI) abnormalities. We report on six Brazilian patients with NMO, fulfilling the ...

BackgroundThe neural mechanisms of panic disorder (PD) are only incompletely understood. Higher sensitivity of patients to unspecific fear cues and similarities to conditioned fear suggest involvement of lower limbic and brainstem structures. We investigated if emotion perception is altered in remitted PD as a trait feature.Methodology/Principal FindingsWe used blood oxygenation level-dependent ...

The potential clinical importance of T1 and T2 relaxation times in distinguishing normal and pathologic tissue with magnetic resonance (MR) is discussed and clinical examples of cerebral abnormalities are given. Five patients with cerebral infarction, 15 with multiple sclerosis, two with Wilson disease, and four with tumors were imaged. Hemorrhagic and ...

BackgroundReversible focal lesions in the splenium of the corpus callosum (SCC) or reversible splenial lesion syndrome are rare and little is known about their pathophysiology.Case summaryThe authors describe a case of a 65-year-old female who presented with fever, abnormal behaviour and mild hypernatremia. She was on neuropsychiatric treatment for bipolar ...

Professional musicians are an excellent human model of long term effects of skilled motor training on the structure and function of the motor system. However, such effects are accompanied by an increased risk of developing motor abnormalities, in particular musician's dystonia. Previously we found that there was an expanded spatial integration of proprioceptive input into the ...

BackgroundAntisocial personality disorder and psychopathy have been hypothesised to have a neurodevelopmental basis, but this proposition has not been formally tested.AimsThis study tests the hypothesis that individuals with cavum septum pellucidum (CSP), a marker of limbic neural maldevelopment, will show higher levels of psychopathy and antisocial personality.MethodCavum septum pellucidum ...

Using the annealing at different temperatures the La1.5Sr0.5NiO4 ceramic samples with different mean grain size were manufactured. Mean grain size () of the samples was evaluated by Warren-Averbach method and their SEM images. The obtained results of both methods are almost the same, changing from 16.2 to 95 nm in dependence on the annealing temperature. The frequency dependence of ...

Longstanding diabetes mellitus damages kidney, retina, peripheral nerve and blood vessels, but brain is not usually considered a primary target. We describe direct involvement of the brain, particularly white matter, in long-term (9 months) experimental diabetes of mice, not previously modeled, correlating magnetic resonance (MR) imaging with quantitative histological ...