2,246 research outputs found
Cosmic Ray Physics with ACORDE at LHC
The use of large underground high-energy physics experiments, for comic ray
studies, have been used, in the past, at CERN, in order to measure, precisely,
the inclusive cosmic ray flux in the energy range from 2x10^10 - 2x10^12 eV.
ACORDE, ALICE Cosmic Rays DEtector, will act as Level 0 cosmic ray trigger and,
together with other ALICE apparatus, will provide precise information on cosmic
rays with primary energies around 10^15 - 10^17 eV. This paper reviews the main
detector features, the present status, commissioning and integration with other
apparatus. Finally, we discuss the ACORDE-ALICE cosmic ray physics program.Comment: Contribution to the 2007 Europhysics Conference on High Energy
Physics - Manchester, England 19-25 July 2007; 3 pages, 3 figure
Effect of Power Control Imperfections on the Reverse Link of Cellular CDMA Networks Under Multipath Fading
Phytochemical, antioxidant and antimicrobial parameters of essential oils and hydrosols of colombian Thyme and Rosemary obtained using two different steam distillation methods
Two procedures of steam distillation of Rosmarinus officinalis and Thymus vulgaris were compared by phytochemical, antioxidant and antimicrobial analysis of their respective essential oils and hydrosols using respectively GCFID and GCMS analysis, free radical scavenging activity on ABTS and dilution and diffusion method against 3 bacteria and 2 fungi. Differences in bioactivity results are discussed taking into account changes in molecular content of essential oils and hydrosols obtained by the two different distillation methods. Although no significant difference was observed between the two procedures with Rosmarinus officinalis, that was not the case with Thymus vulgaris. Significant differences were noted, not only in their respective chemical composition especially with the thymol and p-cymene percentage with respectively a change from 39% with conventional steam distillation to 27% with adapted steam distillation for thymol and from 28% with the first distillation to 37% with the second one for p-cymene. These phytochemical composition changes have an impact on their biological activities results and consequently on the therapeutic activities expected which shows the importance of distillation method selection
BelastungsabhÀngige vertikale Doppelbilder und Ptosis
Zusammenfassung: Eine 43-jĂ€hrige Patientin wurde uns vorgestellt, da seit 2-3Monaten ihr linkes Augenlid in wechselnder AusprĂ€gung hing. Ferner nahm sie auch Doppelbilder in Extrempositionen oder nach schnellen Augenbewegungen wahr und war lichtempfindlich. Die Diagnose ergab ein Keilbeinmeningeom. Es wurde in der Folge 2-mal innerhalb von 3Monaten mittels Radiopeptidtherapie mit 90Y-DOTATOC (Somatostatin-Analogon) behandelt. Bei unserer Patientin fĂŒhrte diese Therapie zu einer Volumenreduktion des Tumors sowie zu einer klinischen Verbesserung und dann Stabilisierun
TCT-812 Efficacy and Safety Evaluation of a Novel Endovascular Occlusion System in a Large Peripheral Preclinical Model
Exposure to Bisphenol A and phthalates metabolites in the third trimester of pregnancy and BMI trajectories
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/146291/1/ijpo12279.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/146291/2/ijpo12279_am.pd
A Parenting Program to Reduce Disruptive Behavior in Hispanic Children with Acquired Brain Injury: A Randomized Controlled Trial Conducted in Mexico
Children with acquired brain injury (ABI) are at risk of impairments in self-regulation and disruptive
behavior. We aimed to investigate the effectiveness of the Signposts program to reduce disruptive
behavior and improve self-regulation in Hispanic children with ABI, and reduce parental stress and
improve parenting practices. Using a randomized controlled trial design, we assigned children (n = 71)
and their parents to Signposts or generic telephone support. Blinded assessors conducted assessments
at pre-intervention, immediately post-intervention, and at 3 months post-intervention. Signposts was
effective in reducing dysfunctional parenting practices. Further, when analyzing participants at risk of
behavioral disturbance (n = 46), Signposts was effective in reducing child disruptive behavior in the
home environment and emotional self-regulation. No differences were found for parental stress, parent
sense of competence, child disruptive behaviors at school, and child cognitive and behavioral selfregulation. The reduction in disruptive behavior was associated with the implementation of authoritative parenting practices (external regulation), and not as
Parenting and the dysregulation profile predict executive functioning in children with acquired brain injury
Background: Children with acquired brain injury (ABI) present
with high rates of psychological disorders commonly accompanied by deficits in hot and cold executive functions (EFs).
Impairments in EFs have been reported to precede mental
health problems. Moreover, children who are vulnerable to
developing mental health problems in adulthood frequently
present with a dysregulation profile in childhood, characterized
by impairments in cognitive, behavioral and emotional regulation. Objective: To identify profiles of behaviors associated with
impairment in hot and cold EFs and compare injury factors,
envi
Parenting program versus telephone support for Mexican parents of children with acquired brain injury: A blind randomized controlled trial
Introduction: Acquired brain injury (ABI) during childhood typically causes behavior problems in the child and
high levels of stress in the family. The aims of this study are: (1) to investigate the effectiveness and feasibility of
a parenting intervention in improving behavior and self-regulation in Mexican children with ABI compared to
telephone support; (2) to investigate the effectiveness and feasibility of a parenting intervention in improving
parenting skills, parent self-efficacy and decreasing parental stress in parents of children with ABI compared to
telephone support. Our secondary aims are (1) to explore the impact that parent characteristics have on the
intervention outcomes; (2) to investi
Potential health impacts of heavy metals on HIV-infected population in USA.
Noninfectious comorbidities such as cardiovascular diseases have become increasingly prevalent and occur earlier in life in persons with HIV infection. Despite the emerging body of literature linking environmental exposures to chronic disease outcomes in the general population, the impacts of environmental exposures have received little attention in HIV-infected population. The aim of this study is to investigate whether individuals living with HIV have elevated prevalence of heavy metals compared to non-HIV infected individuals in United States. We used the National Health and Nutrition Examination Survey (NHANES) 2003-2010 to compare exposures to heavy metals including cadmium, lead, and total mercury in HIV infected and non-HIV infected subjects. In this cross-sectional study, we found that HIV-infected individuals had higher concentrations of all heavy metals than the non-HIV infected group. In a multivariate linear regression model, HIV status was significantly associated with increased blood cadmium (p=0.03) after adjusting for age, sex, race, education, poverty income ratio, and smoking. However, HIV status was not statistically associated with lead or mercury levels after adjusting for the same covariates. Our findings suggest that HIV-infected patients might be significantly more exposed to cadmium compared to non-HIV infected individuals which could contribute to higher prevalence of chronic diseases among HIV-infected subjects. Further research is warranted to identify sources of exposure and to understand more about specific health outcomes
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