Search results for "grain"
showing 10 items of 752 documents
Cortical inhibition and habituation to evoked potentials: relevance for pathophysiology of migraine
2009
Dysfunction of neuronal cortical excitability has been supposed to play an important role in etiopathogenesis of migraine. Neurophysiological techniques like evoked potentials (EP) and in the last years non-invasive brain stimulation techniques like transcranial magnetic stimulation (TMS) and transcranial direct current stimulation gave important contribution to understanding of such issue highlighting possible mechanisms of cortical dysfunctions in migraine. EP studies showed impaired habituation to repeated sensorial stimulation and this abnormality was confirmed across all sensorial modalities, making defective habituation a neurophysiological hallmark of the disease. TMS was employed to…
Chromosome 15q BP4-BP5 Deletion in a Girl with Nocturnal Frontal Lobe Epilepsy, Migraine, Circumscribed Hypertrichosis, and Language Impairment
2020
The 15q13.3 microdeletion (microdel15q13.3) syndrome (OMIM 612001) has been reported in healthy subjects as well as in individuals with a wide spectrum of clinical manifestations ranging from mild to severe neurological disorders, including developmental delay/intellectual disability, autism spectrum disorder, schizophrenia, epilepsy, behavioral problems and speech dysfunction. This study explored the link between this genomic rearrangement and nocturnal frontal lobe epilepsy (NFLE), which could improve the clinical interpretation. A clinical and genomic investigation was carried out on an 8-year-girl with a de novo deletion flanking the breakpoints (BPs) 4 and 5 of 15q13.3 detected by arra…
Migrēnas raksturojums 21.gadsimta sākumā
2019
KOPSAVILKUMS – Migrēnas raksturojums 21. gadsimta sākumā Ievads: Migrēna ir primāras galvassāpes, kas zīmīgi var paliktināt dzīves kvalitāti. Pēdējo desmitu gadu laikā uzskati par migrēnu ir stipri mainījušies un ir sagaidāms, ka 21. gadsimtā zinātniskie pētījumi par šo tēmu palielināsies. Mērķis: Noteikt dažādu migrēnas formu prevalenci, aprakstīt un analizēt migrēnas īpašības Latvijas populācijas grupā un atklāt iespējamos iemeslus novēlotai migrēnas diagnozei. Materiāli un Metodes: Dažādas migrēnas pazīmes tika ievāktas, analizējot 101 migrēnas diagnozes pacienta slimības vēsturi. Migrēnas īpašības tika analizētas, pielietojot aprakstošo statistiku. Pazīmju atšķirību analīze tika veikta,…
Temperamental characteristics in childhood migraine without aura:A multicenter study
2013
Background: Children with migraine seem to be more anxious, sensitive, deliberate, cautious, fearful, vulnerable to frustration, tidy, and less physically enduring than comparisons. To the best our knowledge no studies about the temperamental and the characterial dimension aspects in childhood migraine was conducted. Therefore, the aim of the present study was to describe the temperamental and character aspects in a sample of children affected by migraine without aura (MoA) and their relationship with clinical aspects of MoA such as frequency, duration, and severity of attacks. Materials and methods: In our study, 486 children affected by MoA (239 male, 247 female) aged 7-12 years, (mean 10…
Visual–spatial training efficacy in children affected by migraine without aura: a multicenter study
2017
Francesco Precenzano,1,* Maria Ruberto,2,* Lucia Parisi,3 Margherita Salerno,4 Agata Maltese,3 Beatrice Gallai,5 Rosa Marotta,6 Serena Marianna Lavano,7 Francesco Lavano,6 Michele Roccella3 1Clinic of Child and Adolescent Neuropsychiatry, Headache Center for Children and Adolescent. Department of Mental and Physical Health and Preventive Medicine, Università degli Studi della Campania Luigi Vanvitelli, 2Department of Medical-Surgical and Dental Specialties, Università degli Studi della Campania Luigi Vanvitelli, Naples, 3Department of Psychological, Pedagogical and Educational Sciences, 4Sciences for Mother and Child Health Promotion, University of Palermo, Palermo, 5D…
Efficacy And Tolerability of Acetazolamide in Migraine Prophylaxis and Klinefelter Syndrome: A Case Report
2013
P390 Efficacy and Tolerability of Acetazolamide in Migraine Prophylaxis and Klinefelter Syndrome: A Case Report R. Nardello1, P. Glorioso1, M. Saladino1, M. Moscarelli1, A. Fontana1, S. Mangano1 1Dipartimento di Scienze per la Promozione della Salute e Materno Infantile ‘‘G. D’Alessandro’’, University of Palermo, Palermo, PA, Italy. Objectives: We describe an interesting case of migraine headaches with aura in a 47, XXY male Klinefelter Syndrome (KS) intreatment with Acetazolamide and resolutionof symptoms. Background: A 16-year-old boy presented to the outpatient clinic migraine headaches throbbing, onset evening that lasts for a week and is presented once a month with aura, associated wit…
Geographical traceability of “Arròs de Valencia” rice grain based on mineral element composition
2011
The geographical traceability of rice grain samples involves the use of analytical methodologies that allow their differentiation on the basis of the rice composition, thus confirming their authenticity. In this paper, trace element determination of rice samples by inductively coupled plasma optical emission spectroscopy (ICP-OES) has been addressed to achieve a complete geographical origin classification. Samples (107) from Spain including Valencia, Tarragona, Murcia and Extremadura, Japan, Brazil and India were employed as training set whereas the validation set was formed by 46 samples of the aforementioned geographical origins. Data were processed by linear discriminant analysis (LDA), …
Positron Annihilation in Metals Defected by Action of the Tensile Force
2006
Results of experimental investigations of uniaxially elongated mono- and polycrystalline samples of several metals (Fe, Ta, Pd, Ag, and Au), performed using the positron annihilation methods, are reviewed. The dependences of the S-parameters and positron lifetimes on the relative elongation of the samples were presented. The data obtained for polycrystalline samples indicate that in the proportionality and limited proportionality regions the changes in the physical properties are governed mainly by generation of vacancies and by kinetics of formation and transformations of vacancy clusters occurring flrst of all on the grain boundaries of monocrystallites. In the region of plastic deformati…
Development of crystal morphology during unitaxial growth in a progressively widening vein: II. Numerical simulations of the evolution of antitaxial …
2001
The development of fibrous morphology and capability of fibres for tracking the opening trajectory were investigated using numerical simulations of a natural antitaxial fibrous vein. Starting from a non-unique best case, variation of fracture opening velocity, grain size, wall roughness, growth anisotropy and crystal growth velocity shows that these parameters differ in importance for crystal morphology and tracking capability. Fibrous veins can be simulated using crack–seal opening of the fracture. Grain boundaries track the opening trajectory if the wall roughness is high, opening increments are small and crystals touch the wall before the next crack increment starts.