Radio Frequency Interference /RFI/ design guide for aerospace communications systems

Radio frequency interference design guide for aerospace communications system

Different but Equal: Total Work, Gender and Social Norms in the EU and US Time Use.

Overall, the issue of whether Europeans are lazy or Americans are crazy seems of second-order importance relative to understanding the determinants of individual behavior. Amore useful, scientific approach is to assume that underlying tastes are common to both continents, while technologies, institutions, or interpersonal influences like norms or externalities may differ and evolve differently. The fact that Americans work on weekends or more often at odd hours of the day may simply represent a bad equilibrium that no individual agent can improve upon—and would certainly not wish to deviate from, given what all others are doing. Especially if norms and other externalities are important, one should recognize that the invisible hand may lead agents to places like this.

Different but Equal: Total Work, Gender and Social Norms in EU and US Time Use.

Using time-diary data from 27 countries, we demonstrate a negative relationship between real GDP per capita and the female-male difference in total work time—the sum of work for pay and work at home. We also show that in rich non-Catholic countries on four continents men and women do the same amount of total work on average. Our survey results demonstrate that labor economists, macroeconomists, sociologists and the general public consistently believe that women perform more total work. The facts do not arise from gender differences in the price of time nor from differences in intra-family bargaining: Gender equality is not associated with marital status, and most of the variance in gender total work differences arises from within-couple differences. A theory of social norms could account for within-education group and within-region gender differences being smaller than inter-group differences. It is consistent with cross-national evidence from the World Values Surveys and various sets of microeconomic data.time use;gender differences;household production;paid work;

A Cultural Competency Program for Psychologists: Clinical and Supervisory Practices with Latino Culture and Language

This study was designed to develop and evaluate an online cultural competence training program for psychologists (N = 6). Psychologists who supervise clinical psychology graduate students were recruited via their affiliations with the Philadelphia College of Osteopathic Medicine (PCOM), the National Council of Schools and Programs of Professional Psychology (NCSPP), the Association of Psychology Training Clinics (APTC), the Association of Psychology Postdoctoral and Internship Centers (APPIC), and the Pennsylvania Psychological Association (PPA). The purpose of the study was to address multicultural training gaps between supervisors and doctoral students in psychology and to meet the psychological needs of Latinos, the largest ethnic minority group in the United States. The program was expected to develop and increase psychologists’ sensitivity to Latino culture and language and enhance their multicultural competence in supervision. The study examined cultural competence as measured by the Cultural Competence Assessment (CCA), supervisory multicultural competence as measured by the Multicultural Supervision Inventory – Brief (MSI – B), and supervisory styles of psychologists as measured by the Supervisory Styles Inventory (SSI). The results revealed that psychologists gained knowledge in Latino culture and language and in multicultural supervision following completion of the cultural competence program. The major implication of this study supports the idea that cultural competence training is an effective, promising tool with which to educate psychologists in cultural and supervisory practices as they relate to the treatment of Latinos. Recommendations for future training and research on cultural competency include the development of cultural competency curriculum models for psychology and continuing education mandates in multiculturalism for psychologists

Prostate cancer treatment with Irreversible Electroporation (IRE): Safety, efficacy and clinical experience in 471 treatments.

BackgroundIrreversible Electroporation (IRE) is a novel image-guided tissue ablation technology that induces cell death via very short but strong pulsed electric fields. IRE has been shown to have preserving properties towards vessels and nerves and the extracellular matrix. This makes IRE an ideal candidate to treat prostate cancer (PCa) where other treatment modalities frequently unselectively destroy surrounding structures inducing severe side effects like incontinence or impotence. We report the retrospective assessment of 471 IRE treatments in 429 patients of all grades and stages of PCa with 6-year maximum follow-up time.Material and findingsThe patient cohort consisted of low (25), intermediate (88) and high-risk cancers (312). All had multi-parametric magnetic resonance imaging, and 199 men had additional 3D-mapping biopsy for diagnostic work-up prior to IRE. Patients were treated either focally (123), sub-whole-gland (154), whole-gland (134) or for recurrent disease (63) after previous radical prostatectomy, radiation therapy, etc. Adverse effects were mild (19.7%), moderate (3.7%) and severe (1.4%), never life-threatening. Urinary continence was preserved in all cases. IRE-induced erectile dysfunction persisted in 3% of the evaluated cases 12 months post treatment. Mean transient IIEF-5-Score reduction was 33% within 12-month post IRE follow-up and 15% after 12 months. Recurrences within the follow-up period occurred in 10% of the treated men, 23 in or adjacent to the treatment field and 18 outside the treatment field (residuals). Including residuals for worst case analysis, Kaplan Maier estimation on recurrence rate at 5 years resulted in 5.6% (CI95: 1.8-16.93) for Gleason 6, 14.6% (CI95: 8.8-23.7) for Gleason 7 and 39.5% (CI95: 23.5-61.4) for Gleason 8-10.ConclusionThe results indicate comparable efficacy of IRE to standard radical prostatectomy in terms of 5-year recurrence rates and better preservation of urogenital function, proving the safety and suitability of IRE for PCa treatment. The data also shows that IRE, besides focal therapy of early PCa, can also be used for whole-gland ablations, in patients with recurrent PCa, and as a problem-solver for local tumor control in T4-cancers not amenable to surgery and radiation therapy anymore

Study of the local field distribution on a single-molecule magnet-by a single paramagnetic crystal; a DPPH crystal on the surface of an Mn12-acetate crystal

The local magnetic field distribution on the subsurface of a single-molecule magnet crystal, SMM, above blocking temperature (T >> Tb) detected for a very short time interval (~ 10-10 s), has been investigated. Electron Paramagnetic Resonance (EPR) spectroscopy using a local paramagnetic probe was employed as a simple alternative detection method. An SMM crystal of [Mn12O12(CH3COO)16(H2O)4].2CH3COOH.4H2O (Mn12-acetate) and a crystal of 2,2- diphenyl-1-picrylhydrazyl (DPPH) as the paramagnetic probe were chosen for this study. The EPR spectra of DPPH deposited on Mn12-acetate show additional broadening and shifting in the magnetic field in comparison to the spectra of the DPPH in the absence of the SMM crystal. The additional broadening of the DPPH linewidth was considered in terms of the two dominant electron spin interactions (dipolar and exchange) and the local magnetic field distribution on the crystal surface. The temperature dependence of the linewidth of the Gaussian distribution of local fields at the SMM surface was extrapolated for the low temperature interval (70-5 K)

On a problem of A. Weil

A topological invariant of the geodesic laminations on a modular surface is constructed. The invariant has a continuous part (the tail of a continued fraction) and a combinatorial part (the singularity data). It is shown, that the invariant is complete, i.e. the geodesic lamination can be recovered from the invariant. The continuous part of the invariant has geometric meaning of a slope of lamination on the surface.Comment: to appear Beitr\"age zur Algebra und Geometri