A bicentennial agenda for America

A commencement address is presented. Topics reviewed include politics, technological developments in science as a whole, and the effects of science on human progress. The social ramifications of satellite technology are also reviewed

Ion sense of polarization of the electromagnetic wave field in the electron whistler frequency band

International audienceIt is shown that the left-hand (or ion-type) sense of polarization can appear in the field interference pattern of two plane electron whistler waves. Moreover, it is demonstrated that the ion-type polarized wave electric fields can be accompanied by the presence at the same observation point of electron-type polarized wave magnetic fields. The registration of ion-type polarized fields with frequencies between the highest ion gyrofrequency and the electron gyrofrequency in a cold, overdense plasma is a sufficient indication for the existence of an interference wave pattern, which can typically occur near artificial or natural reflecting magnetospheric plasma regions, inside waveguides (as in helicon discharges, for example), in fields resonantly emitted by beams of charged particles or, in principle, in some self-sustained, nonlinear wave field structures. A comparison with the conventional spectral matrix data processing approach is also presented in order to facilitate the calculations of the analyzed polarization parameters

Modification of the standard model for the lanthanides

We show that incorporation of strong electron correlations into the Kohn-Sham scheme of band structure calculations leads to a modification of the standard model of the lanthanides and that this procedure removes the existing discrepancy between theory and experiment concerning the ground state properties. Within the picture suggested, part of the upper Hubbard $f$-band is occupied due to conduction band-$f$-mixing interaction (that is renormalized due to correlations) and this contributes to the cohesive energy of the crystal. The lower Hubbard band has zero width and describes fermionic excitations in the shell of localized $f$-s. Fully self-consistent calculations (with respect to both charge density and many-electron population numbers of the $f$-shell) of the equilibrium volume $V_0$ and the bulk modulus of selected lanthanides have been performed and a good agreement is obtained.Comment: 1 fi

Herschel and Odin observations of H2O, CO, CH, CH+, and NII in the barred spiral galaxy NGC 1365. Bar-induced activity in the outer and inner circumnuclear tori

The Odin satellite is now into its twentieth year of operation, much surpassing its design life of two years. One of its major pursuits was the search for and study of H2O in the Solar System and the Milky Way galaxy. Herschel has observed the central region of NGC 1365 in two positions, and both its SPIRE and PACS observations are available in the Herschel Science Archive. Herschel PACS images have been produced of the 70 and 160 micron infrared emission from the whole galaxy, and also of the cold dust distribution as obtained from the ratio of the 160 to 70 micron images. The Herschel SPIRE observations have been used to produce maps of the 557 GHz o-H2O, 752 GHz p-H2O, 691 GHz CO(6-5), 1037 GHz CO(9-8), 537 GHz CH, 835 GHz CH+, and the 1461 GHz NII lines; however, these observations have no effective velocity resolution. Odin has recently observed the 557 GHz o-H2O ground state line in the central region with high (5 km/s) spectral resolution. The emission and absorption of H2O at 557 GHz, with a velocity resolution of 5 km/s, has been marginally detected in NGC 1365 with Odin. The H2O is predominantly located in a shocked 15" (1.3 kpc) region near some central compact radio sources and hot-spot HII regions, close to the northeast component of the molecular torus surrounding the nucleus. An analysis of the H2O line intensities and velocities indicates that a shock-region is located here. This is corroborated by a statistical image deconvolution of our SEST CO(3-2) observations, yielding 5" resolution, and a study of our VLA HI absorption observations. Additionally, an enticing 20" HI ridge is found to extend south-southeast from the nucleus, coinciding in position with the southern edge of an OIII outflow cone, emanating from the nucleus. The molecular chemistry of the shocked central region is analyzed with special emphasis on the CO, H2O and CH, CH+ results.Comment: 25 pages, 11 figure

Schizophrenia, recovery and the self: An introduction to the special issue on metacognition

In this special issue, work is presented linking metacognition among persons with schizophrenia with a range of psychosocial outcomes including vocational functioning, empathy, motivation, self-evaluation, and other cognitive functions. This overview will highlight how these works allow for the quantitative study of processes which underpin alterations in self-experience in schizophrenia, which in turn allows self-experience to be studied as part of a larger set of brain-based and social phenomena whose interaction influences the trajectory of one's life and illness. We explore the hypothesis that metacognitive capacity, as a node in a larger biopsychosocial network, may be accessible by psychosocial treatment and, if successfully targeted, may disrupt the processes which perpetuate disability. Limitations and directions for future research are also discussed

Struggling and Overcoming Daily Life Barriers Among Children With Congenital Heart Disease and Their Parents in the West Bank, Palestine

Advances in early diagnosis, treatment, and postoperative care have resulted in increased survival rates among children with congenital heart disease (CHD). Research focus has shifted from survival to long-term follow-up, well-being, daily life experiences, and psychosocial consequences. This study explored the everyday experiences of children with CHD and of their parents living in the Palestinian West Bank. Interviews with nine children aged 8 to 18 years with CHD and nine parents were analyzed using content analysis. The overall theme that emerged was facing and managing challenges, consisting of four themes: sociocultural burden and finding comfort, physical and external limitations, self-perception and concerns about not standing out, and limitations in access to health care due to the political situation. To provide optimum care for children with CHD and their parents, health care providers and policy makers must understand the negative consequences associated with sociocultural conditions and beliefs about chronic illness.Acknowledgments We would like to thank all of the participants of this research. It was their willingness to share their experiences and insights that made this study possible. Funding The authors received no financial support for the research, authorship, and/or publication of this article

Societal Norms and Conditions and Their Influence on Daily Life in ChildrenWith Type 1 Diabetes in the West Bank in Palestine

Purpose: To explore the experiences of daily life in children with type 1 diabetes (T1D) and their parents living in the West Bank in Palestine. Design andMethods: A qualitative study using thematic interviewswas performed with 10 childrenwith T1D and their parents (n = 10). Content analysis was performed with the assistance of NVIVO 10. Results: The overall themewas facing the social reality of diabetes. Thiswas underpinned by two themes: stigmatization and social constraints. Facing the social reality of diabetes described children and their parents' everyday life attempts to place themselves within the context of the disease and social context. Children and their parents described how stigmatization and social constraints impacted their daily life as a result of fear of disclosing the disease, which could affect their social status. Conclusion: These findings highlighted how daily life in children with T1D and their parents was highly affected by cultural impacts, especially as stigma related to the illness affected social interactions of female and male children/ adolescents. Lack of knowledge andmisunderstandings about T1D in society lead to negative consequences like poorer management of diabetes, and this becomes mediated by gender. Practical Implications: The findings suggest health care providers need to be aware of the cultural and social impact of T1D on children's and parents' daily life in order to meet their needs and challenges by providing appropriate interventions, strategies and support.This research did not received any specific grant from funding agencies in the public, commercial, or not-for-profit sectors

Self-Perceived Health Status and Sense of Coherence in Children With Type 1 Diabetes in the West Bank, Palestine

Introduction: Self-perceived health status and sense of coherence (SOC) are essential constructs for capturing health outcomes in children with type 1 diabetes (T1D). This study measured self-perceived health status and SOC in children with T1D and compared them with a healthy reference group in West Bank, Palestine. Methodology: One hundred children with T1D aged 8 to 18 years and 300 healthy children completed PedsQL 4.0 Generic Core Scales and SOC-13 in a crosssectional descriptive study. Results: All children reported acceptable self-perceived health status and low degree of SOC. In the diabetes group, high degree of SOC was associated with better self-perceived health status and more optimal metabolic control. Males in the diabetes group reported higher self-perceived health status than females. Discussion: The unstable political situation in Palestine may threaten SOC in children in general. Health professionals can monitor self-perceived health status and SOC to evaluate interventions aiming to improve glycemic control.We gratefully thank all the children for their participation and the nurses who assisted in data collection

Lunar elemental composition and ivestigations with D-CIXS x-ray mapping spectrometer on SMART-1

The D-CIXS Compact X-ray Spectrometer on ESA SMART-1 successfully launched in Sept 2003 can derive 45 km resolution images of the Moon with a spectral resolution of 185 eV, providing the first high-resolution global map of rock forming element abundances