325 research outputs found

    Modeling the growth of fingerprints improves matching for adolescents

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    We study the effect of growth on the fingerprints of adolescents, based on which we suggest a simple method to adjust for growth when trying to recover a juvenile's fingerprint in a database years later. Based on longitudinal data sets in juveniles' criminal records, we show that growth essentially leads to an isotropic rescaling, so that we can use the strong correlation between growth in stature and limbs to model the growth of fingerprints proportional to stature growth as documented in growth charts. The proposed rescaling leads to a 72% reduction of the distances between corresponding minutiae for the data set analyzed. These findings were corroborated by several verification tests. In an identification test on a database containing 3.25 million right index fingers at the Federal Criminal Police Office of Germany, the identification error rate of 20.8% was reduced to 2.1% by rescaling. The presented method is of striking simplicity and can easily be integrated into existing automated fingerprint identification systems

    The Making of ADHD: A Comparative Content Analysis of Teachers’ and Doctors’ Worldviews

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    Little is known about how teachers and doctors make sense of ADHD. Drawing on a corpus of online accounts, we reconstructed their worldviews with a qualitative analysis. While both professional groups referred to a male troublemaker and to the German literary figure of the Fidgety Phil, they also expressed rival expert claims. Doctors represented the scientific authority in labeling and diagnosing ADHD, whereas teachers attached objective meaning to the medical judgement by pathologizing deviant behavior and justifying measures of control

    Biocultural Evidence of Precise Manual Activities in an Early Holocene Individual of the High-Altitude Peruvian Andes

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    OBJECTIVES: Cuncaicha, a rockshelter site in the southern Peruvian Andes, has yielded archaeological evidence for human occupation at high elevation (4,480 masl) during the Terminal Pleistocene (12,500–11,200 cal BP), Early Holocene (9,500–9,000 cal BP), and later periods. One of the excavated human burials (Feature 15‐06), corresponding to a middle‐aged female dated to ~8,500 cal BP, exhibits skeletal osteoarthritic lesions previously proposed to reflect habitual loading and specialized crafting labor. Three small tools found in association with this burial are hypothesized to be associated with precise manual dexterity. MATERIALS AND METHODS: Here, we tested this functional hypothesis through the application of a novel multivariate methodology for the three‐dimensional analysis of muscle attachment surfaces (entheses). This original approach has been recently validated on both lifelong‐documented anthropological samples as well as experimental studies in nonhuman laboratory samples. Additionally, we analyzed the three‐dimensional entheseal shape and resulting moment arms for muscle opponens pollicis. RESULTS: Results show that Cuncaicha individual 15‐06 shows a distinctive entheseal pattern associated with habitual precision grasping via thumb‐index finger coordination, which is shared exclusively with documented long‐term precision workers from recent historical collections. The separate geometric morphometric analysis revealed that the individual\u27s opponens pollicis enthesis presents a highly projecting morphology, which was found to strongly correlate with long joint moment arms (a fundamental component of force‐producing capacity), closely resembling the form of Paleolithic hunter‐gatherers from diverse geo‐chronological contexts of Eurasia and North Africa. DISCUSSION: Overall, our findings provide the first biocultural evidence to confirm that the lifestyle of some of the earliest Andean inhabitants relied on habitual and forceful precision grasping tasks

    Diagnosis and management of ADHD: a pediatric perspective on practice and challenges in Switzerland

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    Background: Attention deficit/hyperactivity disorder (ADHD) is one of the most prevalent psychiatric disorders in childhood. In Switzerland, the complex diagnosis and treatment are being carried out by adolescent-/child psychiatrists, and pediatricians. Guidelines recommend a multimodal therapy for patients with ADHD. However, it has been questioned whether health professionals follow this approach or favor drug therapy. This study aims to provide insights into the practice of pediatricians in Switzerland regarding diagnosis and treatment of ADHD and their perceptions of these processes. Method: An online survey (self-report) about current practices of diagnosis and management as well as challenges regarding ADHD was distributed to office-based pediatricians in Switzerland. One hundred fifty-one pediatricians participated. Results show that therapy options were almost always discussed with parents and older children. Exchange with parents (81%) and level of child's suffering (97%) were central when selecting therapy options. Results: Therapies about which pediatricians informed most often were: pharmacological therapy, psychotherapy, and multimodal therapy. Challenges voiced were the subjectivity of diagnostic criteria and dependence on third parties, low availability of psychotherapy, and a rather negative public attitude towards ADHD. Needs that were expressed were further education for all professionals, support for coordination with specialists and schools as well as improvement of information on ADHD. Conclusions: Pediatricians do consider a multimodal approach when treating ADHD and take the families` and children's opinions into account. Improvements of the availability of child and youth psychotherapy, the strengthening of the interprofessional cooperation with therapists and schools, and efforts to increase public knowledge about ADHD are proposed

    The making of ADHD : a comparative content analysis of teachers’ and doctors’ worldviews

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    Little is known about how teachers and doctors make sense of ADHD. Drawing on a corpus of online accounts, we reconstructed their worldviews with a qualitative analysis. While both professional groups referred to a male troublemaker and to the German literary figure of the Fidgety Phil, they also expressed rival expert claims. Doctors represented the scientific authority in labeling and diagnosing ADHD, whereas teachers attached objective meaning to the medical judgement by pathologizing deviant behavior and justifying measures of control

    Common data elements for pediatric traumatic brain injury: Recommendations from the working group on demographics and clinical assessment

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    The Common Data Elements (CDEs) initiative is a National Institutes of Health (NIH) interagency effort to standardize naming, definitions, and data structure for clinical research variables. Comparisons of the results of clinical studies of neurological disorders have been hampered by variability in data coding, definitions, and procedures for sample collection. The CDE project objective is to enable comparison of future clinical trials results in major neurological disorders, including traumatic brain injury (TBI), stroke, multiple sclerosis, and epilepsy. As part of this effort, recommendations for CDEs for research on TBI were developed through a 2009 multi-agency initiative. Following the initial recommendations of the Working Group on Demographics and Clinical Assessment, a separate workgroup developed recommendations on the coding of clinical and demographic variables specific to pediatric TBI studies for subjects younger than 18 years. This article summarizes the selection of measures by the Pediatric TBI Demographics and Clinical Assessment Working Group. The variables are grouped into modules which are grouped into categories. For consistency with other CDE working groups, each variable was classified by priority (core, supplemental, and emerging). Templates were produced to summarize coding formats, guide selection of data points, and provide procedural recommendations. This proposed standardization, together with the products of the other pediatric TBI working groups in imaging, biomarkers, and outcome assessment, will facilitate multi-center studies, comparison of results across studies, and high-quality meta-analyses of individual patient data

    Diagnosis and management of ADHD : a pediatric perspective on practice and challenges in Switzerland

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    Background Attention deficit/hyperactivity disorder (ADHD) is one of the most prevalent psychiatric disorders in childhood. In Switzerland, the complex diagnosis and treatment are being carried out by adolescent−/child psychiatrists, and pediatricians. Guidelines recommend a multimodal therapy for patients with ADHD. However, it has been questioned whether health professionals follow this approach or favor drug therapy. This study aims to provide insights into the practice of pediatricians in Switzerland regarding diagnosis and treatment of ADHD and their perceptions of these processes. Method An online survey (self-report) about current practices of diagnosis and management as well as challenges regarding ADHD was distributed to office-based pediatricians in Switzerland. One hundred fifty-one pediatricians participated. Results show that therapy options were almost always discussed with parents and older children. Exchange with parents (81%) and level of child’s suffering (97%) were central when selecting therapy options. Results Therapies about which pediatricians informed most often were: pharmacological therapy, psychotherapy, and multimodal therapy. Challenges voiced were the subjectivity of diagnostic criteria and dependence on third parties, low availability of psychotherapy, and a rather negative public attitude towards ADHD. Needs that were expressed were further education for all professionals, support for coordination with specialists and schools as well as improvement of information on ADHD. Conclusions Pediatricians do consider a multimodal approach when treating ADHD and take the families` and children’s opinions into account. Improvements of the availability of child and youth psychotherapy, the strengthening of the interprofessional cooperation with therapists and schools, and efforts to increase public knowledge about ADHD are proposed

    De novo annotation of the transcriptome of the Northern Wheatear (Oenanthe oenanthe)

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    We have sequenced a partial transcriptome of the Northern Wheatear (Oenanthe oenanthe), a species with one of the longest migrations on Earth. The transcriptome was constructed de novo using RNA-Seq sequence data from the pooled mRNA of six different tissues: brain, muscle, intestine, liver, adipose tissue and skin. The samples came from nine captive-bred wheatears collected at three different stages of the endogenous autumn migratory period: (1) lean birds prior the onset of migration, (2) during the fattening stage and (3) individuals at their migratory body mass plateau, when they have almost doubled their lean body mass. The sample structure used to build up the transcriptome of the Northern Wheatears concerning tissue composition and time guarantees the future survey of the regulatory genes involved in the development of the migratory phenotype. Through the pre-migratory period, birds accomplish outstanding physical and behavioural changes that involve all organ systems. Nevertheless, the molecular mechanisms through which birds synchronize and control hyperphagia, fattening, restlessness increase, immunity boosting and tuning the muscles for such endurance flight are still largely unknown. The use of RNA-Seq has emerged as a powerful tool to analyse complex traits on a broad scale, and we believe it can help to characterize the migratory phenotype of wheatears at an unprecedented level. The primary challenge to conduct quantitative transcriptomic studies in non-model species is the availability of a reference transcriptome, which we have constructed and described in this paper. The cDNA was sequenced by pyrosequencing using the Genome Sequencer Roche GS FLX System; with single paired-end reads of about 400 bp. We estimate the total number of genes at 15,640, of which  67% could be annotated using Turkey and Zebra Finch genomes, or protein sequence information from SwissProt and NCBI databases. With our study, we have made a first step towards understanding the migratory phenotype regarding gene expression of a species that has become a model to study birds long-distance migrations

    Promoting children : recommendations for dealing with AD(H)D in the decision-making process

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    Attention deficit hyperactivity disorder (ADHD) is the most common mental disorder in childhood worldwide. In Switzerland, regional studies indicated an increase in pharmacological treatment, which has led to concerns among politicians, scientists and affected families. This research project investigated how parents choose the treatment for their children, how pediatricians diagnose and treat ADHD, how teachers deal with ADHD, how the different actors cooperate and, most importantly, how affected children can be placed in the center of the efforts. The project used a mixed-method approach. Participants in Switzerland were recruited with the help of professional associations. Parents and teachers/health educators filled in an online survey (n=87 and n=125, respectively) and were interviewed (n=8 and n=10, respectively). Pediatricians filled in an online survey (n=223). The analysis of the parent survey showed that the path to a treatment decision is characterized by lengthy treatment histories. As most important reason for pharmacological treatment, parents reported the suffering, which manifested itself in a variety of problems that started in the school environment but then spilled over to the family system. As central finding from the responses of teachers/health educators and pediatricians, actors from the child's environment (i.e., teachers, physicians, and parents) should cooperate in "round table" meetings that serve to informing the actors and to destigmatizing and involving the child. To promote the well-being of the child, ADHD must be understood, diagnosed and treated as a multifactorial phenomenon. In addition to knowledge, communication and cooperation between the actors are important. The data also suggest a paradigm shift, whereby the conventional "bio-medical" model has already been replaced by an alternative "social construction" model that takes children's environment into account
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