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Deborah Wilson - One of the best experts on this subject based on the ideXlab platform.

  • Sleep Walking towards segregation the changing ethnic composition of english schools 1997 2003 an entry cohort analysis
    Transactions of the Institute of British Geographers, 2008
    Co-Authors: Ron Johnston, Simon Burgess, Richard Harris, Deborah Wilson
    Abstract:

    There has been considerable public debate recently in England regarding levels of segregation (and changes in those levels) not only by neighbourhood but also in schools. Few data are available to evaluate claims that such segregation has been increasing in the country's schools, however. This paper uses a data set released by the Department for Education and Skills which indicates the ethnic identity for every student in the entry cohorts for all English primary and secondary schools between 1997 and 1998 (for primary and secondary schools respectively) and 2003. Analysis indicates that there has been some increase in segregation levels in a few cities, but only to the expected extent given the changing relative size of the ethnic minority populations there. Segregation is relatively high in the country's schools, but has only increased if the minority groups’ share of the entry cohorts has been increasing.

  • Sleep Walking towards segregation the changing ethnic composition of english schools 1997 2003 an entry cohort analysis
    Research Papers in Economics, 2006
    Co-Authors: Ron Johnston, Simon Burgess, Richard Harris, Deborah Wilson
    Abstract:

    There has been considerable public debate recently in England regarding levels of segregation (and changes in those levels) not only by neighbourhood but also in schools. Little data are available to evaluate claims that such segregation has been increasing in the country’s schools. This paper uses a data set released by the Department for Education and Skills which indicates the ethnic identity for every student in the entry cohorts for all English primary and secondary schools between 1997-8 (for primary and secondary schools respectively) and 2003. Analysis indicates that there has been some increase in segregation levels in some cities, but only to the expected extent given the changing relative size of the ethnic minority populations there. Segregation is relatively high there, but has only increased if the minority groups’ share of the entry cohorts has been increasing.

Ron Johnston - One of the best experts on this subject based on the ideXlab platform.

  • Sleep Walking towards segregation the changing ethnic composition of english schools 1997 2003 an entry cohort analysis
    Transactions of the Institute of British Geographers, 2008
    Co-Authors: Ron Johnston, Simon Burgess, Richard Harris, Deborah Wilson
    Abstract:

    There has been considerable public debate recently in England regarding levels of segregation (and changes in those levels) not only by neighbourhood but also in schools. Few data are available to evaluate claims that such segregation has been increasing in the country's schools, however. This paper uses a data set released by the Department for Education and Skills which indicates the ethnic identity for every student in the entry cohorts for all English primary and secondary schools between 1997 and 1998 (for primary and secondary schools respectively) and 2003. Analysis indicates that there has been some increase in segregation levels in a few cities, but only to the expected extent given the changing relative size of the ethnic minority populations there. Segregation is relatively high in the country's schools, but has only increased if the minority groups’ share of the entry cohorts has been increasing.

  • Sleep Walking towards segregation the changing ethnic composition of english schools 1997 2003 an entry cohort analysis
    Research Papers in Economics, 2006
    Co-Authors: Ron Johnston, Simon Burgess, Richard Harris, Deborah Wilson
    Abstract:

    There has been considerable public debate recently in England regarding levels of segregation (and changes in those levels) not only by neighbourhood but also in schools. Little data are available to evaluate claims that such segregation has been increasing in the country’s schools. This paper uses a data set released by the Department for Education and Skills which indicates the ethnic identity for every student in the entry cohorts for all English primary and secondary schools between 1997-8 (for primary and secondary schools respectively) and 2003. Analysis indicates that there has been some increase in segregation levels in some cities, but only to the expected extent given the changing relative size of the ethnic minority populations there. Segregation is relatively high there, but has only increased if the minority groups’ share of the entry cohorts has been increasing.

Dario Pruna - One of the best experts on this subject based on the ideXlab platform.

  • increased sensitivity of the neuronal nicotinic receptor α2 subunit causes familial epilepsy with nocturnal wandering and ictal fear
    American Journal of Human Genetics, 2006
    Co-Authors: Paolo Aridon, C Marini, Chiara Di Resta, Elisa Brilli, Maurizio De Fusco, Fausta Politi, Elena Parrini, Irene Manfredi, Tiziana Pisano, Dario Pruna
    Abstract:

    Sleep has traditionally been recognized as a precipitating factor for some forms of epilepsy, although differential diagnosis between some seizure types and parasomnias may be difficult. Autosomal dominant frontal lobe epilepsy is characterized by nocturnal seizures with hyperkinetic automatisms and poorly organized stereotyped movements and has been associated with mutations of the α4 and β2 subunits of the neuronal nicotinic acetylcholine receptor. We performed a clinical and molecular genetic study of a large pedigree segregating Sleep-related epilepsy in which seizures are associated with fear sensation, tongue movements, and nocturnal wandering, closely resembling nightmares and Sleep Walking. We identified a new genetic locus for familial Sleep-related focal epilepsy on chromosome 8p12.3-8q12.3. By sequencing the positional candidate neuronal cholinergic receptor α2 subunit gene (CHRNA2), we detected a heterozygous missense mutation, I279N, in the first transmembrane domain that is crucial for receptor function. Whole-cell recordings of transiently transfected HEK293 cells expressing either the mutant or the wild-type receptor showed that the new CHRNA2 mutation markedly increases the receptor sensitivity to acetylcholine, therefore indicating that the nicotinic α2 subunit alteration is the underlying cause. CHRNA2 is the third neuronal cholinergic receptor gene to be associated with familial Sleep-related epilepsies. Compared with the CHRNA4 and CHRNB2 mutations reported elsewhere, CHRNA2 mutations cause a more complex and finalized ictal behavior.

Stuart F Quan - One of the best experts on this subject based on the ideXlab platform.

  • incidence and remission of parasomnias among adolescent children in the tucson children s assessment of Sleep apnea tucasa study
    Southwest Journal of Pulmonary and Critical Care, 2011
    Co-Authors: Oscar Furet, James L Goodwin, Stuart F Quan
    Abstract:

    Background: Longitudinal assessments of parasomnias in the adolescent population are scarce. This analysis aims to identify the incidence and remission of parasomnias in the adolescent age group. Methods: The TuCASA study is a prospective cohort study that initially enrolled children between the ages of 6 and 11 years (Time 1) and subsequently restudied them approximately 5 years later (Time 2). At both time points parents were asked to complete a comprehensive Sleep habits questionnaire designed to assess the severity of Sleep-related symptoms that included questions about enuresis (EN), Sleep terrors (TR), Sleep Walking (SW) and Sleep talking (ST). Results: There were 350 children participating at Time 1 who were studied as adolescents at time 2. The mean interval between measurements was (4.6 years). The incidence of EN, TR, ST, and SW in these 10-18 year old children was 0.3%, 0.6%, 6.0% and 1.1% respectively. Remission rates were 70.8%, 100%, 64.8% and 50.0% respectively. Conclusions: The incidence rates of EN, TR, and SW were relatively low moving from childhood to adolescence while remission rates were high across all parasomnias.

  • parasomnias and Sleep disordered breathing in caucasian and hispanic children the tucson children s assessment of Sleep apnea study
    BMC Medicine, 2004
    Co-Authors: James L Goodwin, Kris L Kaemingk, Ralph F Fregosi, Gerald M Rosen, Wayne J Morgan, Terry J Smith, Stuart F Quan
    Abstract:

    Recent studies in children have demonstrated that frequent occurrence of parasomnias is related to increased Sleep disruption, mental disorders, physical harm, Sleep disordered breathing, and parental duress. Although there have been several cross-sectional and clinical studies of parasomnias in children, there have been no large, population-based studies using full polysomnography to examine the association between parasomnias and Sleep disordered breathing. The Tucson Children's Assessment of Sleep Apnea study is a community-based cohort study designed to investigate the prevalence and correlates of objectively measured Sleep disordered breathing (SDB) in pre-adolescent children six to 11 years of age. This paper characterizes the relationships between parasomnias and SDB with its associated symptoms in these children. Parents completed questionnaires pertaining to their child's Sleep habits. Children had various physiological measurements completed and then were connected to the Compumedics PS-2 Sleep recording system for full, unattended polysomnography in the home. A total of 480 unattended home polysomnograms were completed on a sample that was 50% female, 42.3% Hispanic, and 52.9% between the ages of six and eight years. Children with a Respiratory Disturbance Index of one or greater were more likely to have Sleep Walking (7.0% versus 2.5%, p < 0.02), Sleep talking (18.3% versus 9.0%, p < 0.006), and enuresis (11.3% versus 6.3%, p < 0.08) than children with an Respiratory Disturbance Index of less than one. A higher prevalence of other Sleep disturbances as well as learning problems was observed in children with parasomnia. Those with parasomnias associated with arousal were observed to have increased number of stage shifts. Small alterations in Sleep architecture were found in those with enuresis. In this population-based cohort study, pre-adolescent school-aged children with SDB experienced more parasomnias than those without SDB. Parasomnias were associated with a higher prevalence of other Sleep disturbances and learning problems. Clinical evaluation of children with parasomnias should include consideration of SDB.

Richard Harris - One of the best experts on this subject based on the ideXlab platform.

  • Sleep Walking towards segregation the changing ethnic composition of english schools 1997 2003 an entry cohort analysis
    Transactions of the Institute of British Geographers, 2008
    Co-Authors: Ron Johnston, Simon Burgess, Richard Harris, Deborah Wilson
    Abstract:

    There has been considerable public debate recently in England regarding levels of segregation (and changes in those levels) not only by neighbourhood but also in schools. Few data are available to evaluate claims that such segregation has been increasing in the country's schools, however. This paper uses a data set released by the Department for Education and Skills which indicates the ethnic identity for every student in the entry cohorts for all English primary and secondary schools between 1997 and 1998 (for primary and secondary schools respectively) and 2003. Analysis indicates that there has been some increase in segregation levels in a few cities, but only to the expected extent given the changing relative size of the ethnic minority populations there. Segregation is relatively high in the country's schools, but has only increased if the minority groups’ share of the entry cohorts has been increasing.

  • Sleep Walking towards segregation the changing ethnic composition of english schools 1997 2003 an entry cohort analysis
    Research Papers in Economics, 2006
    Co-Authors: Ron Johnston, Simon Burgess, Richard Harris, Deborah Wilson
    Abstract:

    There has been considerable public debate recently in England regarding levels of segregation (and changes in those levels) not only by neighbourhood but also in schools. Little data are available to evaluate claims that such segregation has been increasing in the country’s schools. This paper uses a data set released by the Department for Education and Skills which indicates the ethnic identity for every student in the entry cohorts for all English primary and secondary schools between 1997-8 (for primary and secondary schools respectively) and 2003. Analysis indicates that there has been some increase in segregation levels in some cities, but only to the expected extent given the changing relative size of the ethnic minority populations there. Segregation is relatively high there, but has only increased if the minority groups’ share of the entry cohorts has been increasing.