Exploring the Impact of Soccer Camp on Social Identity for Youth with Cerebral Palsy

Background: The purpose of this study was to explore the impact of an exclusive, residential cerebral palsy (CP) soccer camp on social identity for youth with CP. Using a phenomenological approach, the aim of this study was to explain the six-day CP soccer camp experience from the camper\u27s perspective, guided by the three processes of Social Identity Theory (SIT), to determine if a CP soccer camp setting impacted the development of the participant\u27s social identity. Methods: Semi-structured interviews were collected online through a video software from 13 participants who were purposefully sampled between the ages of 10-18. Qualitative data was initially analyzed through a deductive coding lens, then further analyzed through an inductive coding process. Results: Findings suggest that participation in an exclusive, residential CP soccer camp supported two of the three processes in SIT and provided opportunities for youth with CP to feel connected and similar to others with disabilities. Participants enjoyed being around other individuals with CP in a supportive sport environment. Conclusion: This study indicated that CP soccer camp assisted in the camper\u27s social identity development in two of the three processes of SIT. Future research implications are discussed

Spectral averaging techniques for Jacobi matrices

Spectral averaging techniques for one-dimensional discrete Schroedinger operators are revisited and extended. In particular, simultaneous averaging over several parameters is discussed. Special focus is put on proving lower bounds on the density of the averaged spectral measures. These Wegner type estimates are used to analyze stability properties for the spectral types of Jacobi matrices under local perturbations

DNS++: Dynamic Name Resolution with Homomorphic Encryption Based Privacy

This paper presents DNS++, a re-design of the Internet's name resolution system that addresses dynamic information and privacy. DNS++ uses a pub/sub overlay to send updates about a given service to interested clients, allowing them to (re)select between replicas according to their requirements, as updates about services and their features dynamically change. Since third-party brokers in the overlay are not always trusted for the confidentiality of the content flowing through them, clients' privacy is preserved in DNS++ through homomorphic encryption. Brokers are prevented from accessing encrypted service information but can perform homomorphic match and forward service updates to relevant clients through the overlay accordingly. Assuming that forwarding tables in each broker are implemented via ordered data structures, the time required for adding a new client's subscription, and to perform homomorphic match between existing subscriptions and service updates, would grow logarithmically with the number of entries within a table. This is shown by our performance evaluation, which confirms that DNS++ is feasible to be deployed with an acceptable performance overhead

The PSI-U1 snRNP interaction regulates male mating behavior in Drosophila

Alternative pre-mRNA splicing (AS) is a critical regulatory mechanism that operates extensively in the nervous system to produce diverse protein isoforms. Fruitless AS isoforms have been shown to influence male courtship behavior, but the underlying mechanisms are unknown. Using genome-wide approaches and quantitative behavioral assays, we show that the P-element somatic inhibitor (PSI) and its interaction with the U1 small nuclear ribonucleoprotein complex (snRNP) control male courtship behavior. PSI mutants lacking the U1 snRNP-interacting domain (PSIΔAB mutant) exhibit extended but futile mating attempts. The PSIΔAB mutant results in significant changes in the AS patterns of ∼1,200 genes in the Drosophila brain, many of which have been implicated in the regulation of male courtship behavior. PSI directly regulates the AS of at least one-third of these transcripts, suggesting that PSI-U1 snRNP interactions coordinate the behavioral network underlying courtship behavior. Importantly, one of these direct targets is fruitless, the master regulator of courtship. Thus, PSI imposes a specific mode of regulatory control within the neuronal circuit controlling courtship, even though it is broadly expressed in the fly nervous system. This study reinforces the importance of AS in the control of gene activity in neurons and integrated neuronal circuits, and provides a surprising link between a pleiotropic pre-mRNA splicing pathway and the precise control of successful male mating behavior

Work and information processing in a solvable model of Maxwell's demon

We describe a minimal model of an autonomous Maxwell demon, a device that delivers work by rectifying thermal fluctuations while simultaneously writing information to a memory register. We solve exactly for the steady-state behavior of our model, and we construct its phase diagram. We find that our device can also act as a "Landauer eraser", using externally supplied work to remove information from the memory register. By exposing an explicit, transparent mechanism of operation, our model offers a simple paradigm for investigating the thermodynamics of information processing by small systems.Comment: Main Text (6 pages, 3 figures) + Suppl. Info. (3 pages). To appear in PNA

Interannual signals in length of day and atmospheric angular momentum

International audienceAtmospheric angular momentum (AAM) and length of day (LOD) series are investigated for their characteristics on interannual time scales during the half-century period 1949 to 1998. During this epoch, the interannual variability in LOD can be separated naturally into three bands: a quasi-biennial, a triennial-quadrennial and one at six-seven years. The atmosphere appears to excite the first two bands, while it does not contribute to the last. Considering the quasi-biennial (QB) band alone, the atmosphere appears to excite most of its signal in LOD, but it arises from separate fluctuations with stratospheric and tropospheric origin. Thus, although close in frequency, stratospheric and tropospheric processes differ in their amplitude and phase variability. The time shift can be noted especially during the strong El Niño events of 1982-83 and 1997-98 when both processes have positive phase and thus combine to help produce particularly strong peak in AAM and LOD. In addition, we have reconfirmed the downward propagation in the stratosphere and upward propagation in the troposphere of AAM observed in earlier studies for other variables. In the triennial-quadrennial (TQ) band, time-variable spectral analyses reveal that LOD and AAM contain strong variability, with periods shorter than four years before 1975 and longer thereafter. This signal originates mainly within the troposphere and propagates upwards from the lower to the higher layers of the troposphere. According to a zonal analysis, an equatorial poleward mode, strongly linked to the SOI, explains more than 60% of the total variability at these ranges. In addition, this study also indicates that an equatorward mode, originating within polar latitudes, explains, on average, more than 15% of the triennial-quadrennial oscillation (TQO) variability in AAM, and up to 30% at certain epochs. Finally, a six year period in LOD noted in earlier studies, as well as in lengthier series covering much of the century, is found to be absent in atmospheric excitations, and it is thus likely to arise from mantle/core interactions

Pengaruh Lingkungan Keja dan Keselamatan & Kesehatan Kerja Karyawan terhadap Kepuasan Kerja pada PT. Priatama Riau Kebun Pulau Rupat

This study was conducted at PT . Priatama Riau Gardens Rupat with the aim of analyzing the influence of the work environment variables and employee safety & health ( k3 ) , the job satisfaction of employees at PT . Riau Priatama Rupat Gardens . Population is staying employees to 116 people. Sampling was conducted using census or sample saturated 54 people made as a sample of respondents , the analysis method used is descriptive quantitative methods , data analysis carried out simultaneously and partial ( multiple linear regression analysis with SPSS version 19.0 ) . From the results of simultaneous testing (Test F), shows that all the independent variables studied had a significant effect on employee job satisfaction variables . Partial regression test (t test ) showed that the variables lingkungankerja (X1)and employee safety & health ( X2) is more significant effect on job satisfaction of employees(Y) at PT. Priatama RiauKebun Rupat. The magnitude of the effect caused by these three variables together against the dependent variable of this means that the variable work environment and occupational health & safety of employees (k3), jointly influencing employee satisfaction with variable percentage of. While , affected by other factors that did not participate in this study. Thus, it can be concluded that the work environment variables and employee safety & health ( k3 ) simultaneously and partially positive and significant effect on job satisfaction of employees at PT. Priatama RiauKebun Rupat . In addition, variable employee safety and health is also a variable that has more influence on employee job satisfaction when compared with variable work environment.Keywords: Work Environment, Safety & Health and employee job satisfaction of emplo