FMR Study of Co/Ti Bilayer Thin Films

. We focused on the interaction between two ferromagnetic cobalt layers through a non-magnetic titanium layer. The magnetic properties of the structure were characterized by ferromagnetic resonance technique (FMR). The data were collected as a function of non-magnetic titanium layer thickness. Co/Ti multilayer (Ti (50 {\AA})/Co(45 {\AA})/Ti(2-40 {\AA})/Co(40 {\AA})/Ti(100 {\AA}))films were grown onto naturally oxidized p-type single crystal Si (100) substrate at UHV condition with magnetron sputtering system at room temperature. The thickness of Ti spacer layer ranges from 2 to 40 {\AA} with 2 {\AA} steps. We did not observe usual optic and acoustic modes; instead we had two broad overlapped peaks for the films ranged from 6 {\AA} to 40 {\AA}. One interesting result was the high anisotropic resonance field values for these films. Exchange coupling between ferromagnetic layers causes shift on resonance field values but these shifts in our samples were much larger than expected. This large anisotropic behavior is not clear at the moment. Our theoretical model was not able to determine a value for the exchange coupling parameter. One reason can be the close thickness values for Co sublayers. The other reason can be the Ti non-magnetic layer. If titanium did not grow layer by layer on cobalt, the cobalt ferromagnetic layers may behave as a single layer. As a result one cannot observe exchange interaction between ferromagnetic layers through non-magnetic spacer.Comment: 6 pages, 5 figure

Analytics in the Business School: Insights from the Literature

The demand for business and data analysts is growing. The business school is well positioned to offer programs to meet these needs. This paper presents both the findings from a review of the existing literature on data analytics job roles, skills required for those roles and also feedback from industry experts on findings. Three different types of articles are included in the design: faculty writing about their personal experiences and observations (faculty voice), data gathered from expert practitioners and other academics (nonresident expertise), and empirical data from online job service platforms (content analysis). The narrative review method is used to integrate these disparate sources of information and deliver cohesive observations. This knowledge can be used to build better analytics programs in business schools

A novel KIF11 mutation in a Turkish patient with microcephaly, lymphedema, and chorioretinal dysplasia from a consanguineous family.

Microcephaly–lymphedema–chorioretinal dysplasia (MLCRD) syndrome is a rare syndrome that was first described in 1992. Characteristic craniofacial features include severe microcephaly, upslanting palpebral fissures, prominent ears, a broad nose, and a long philtrum with a pointed chin. Recently, mutations in KIF11 have been demonstrated to cause dominantly inherited MLCRD syndrome. Herein, we present a patient with MLCRD syndrome whose parents were first cousins. The parents are unaffected, and thus a recessive mode of inheritance for the disorder was considered likely. However, the propositus carries a novel, de novo nonsense mutationinexon2 of KIF11. The patient also had midline cleft tongue which has not previously been described in this syndrome

The exon 13 duplication in the BRCA1 gene is a founder mutation present in geographically diverse populations

Cataloged from PDF version of article.Recently, a 6-kb duplication of exon 13, which creates a frameshift in the coding sequence of the BRCA1 gene, has been described in three unrelated U.S. families of European ancestry and in one Portuguese family. Here, our goal was to estimate the frequency and geographic diversity of carriers of this duplication. To do this, a collaborative screening study was set up that involved 39 institutions from 19 countries and included 3,580 unrelated individuals with a family history of the disease and 934 early-onset breast and/or ovarian cancer cases. A total of 11 additional families carrying this mutation were identified in Australia (1), Belgium (1), Canada (1), Great Britain (6), and the United States (2). Haplotyping showed that they are likely to derive from a common ancestor, possibly of northern British origin. Our results demonstrate that it is strongly advisable, for laboratories carrying out screening either in English-speaking countries or in countries with historical links with Britain, to include within their BRCA1 screening protocols the polymerase chain reaction-based assay described in this report

Job promotion in midcareer: gender, recession, and “crowding”

Data from the National Longitudinal Survey of Youth 1979 indicate that, between 1996 and 2010, women, on average, lost some of the promotion momentum they had achieved at the beginning of midcareer, although they outperformed men in this regard. For both genders, the economic downturn of 2001 and the Great Recession of 2007–2009 contributed to reduced promotion probabilities. In the case of women, however, cohort effects, rather than the business cycle, seem to explain the promotion experience during the Great Recession. Promotions translate into higher real-wage increases, especially when coupled with growth in job responsibilities. Crowding effects, if not necessarily a thing of the past, are no longer manifested in reduced female promotion rates or earnings

The Occupational Feminization of Wages

This article updates the 1995 study by Macpherson and Hirsch that used monthly Current Population Survey (CPS) data from 1973 to 1993 to examine the effects of occupational gender composition on earnings. In the updating process, the authors correct for biases in this data set that are attributable to the inclusion of imputed earners and the misreporting of occupation. They use CPS data from 1996 to 2010 to provide cross-sectional estimates of the impact of the feminization of occupations on wages, as well as its contribution to the gender wage gap. Longitudinal CPS data indicate that the negative effects of gender composition on earnings observed in cross-sectional data are lessened when researchers control for observed heterogeneity and are much reduced when controlling for unobserved heterogeneity. These findings are confirmed using much longer panels from the National Longitudinal Survey of Youth 1979 (NLSY79). Finally, the use of synthetic panels of aging cohorts suggests that wage penalties are largest for younger cohorts in predominantly female occupations

Thrombosis with Behçet’s disease should be evaluated different conditions

No Abstract

The influence of thickness and ammonia flow rate on the properties of AIN layers

Cataloged from PDF version of article.Undoped AlN layers have been grown on c-plane sapphire substrates by metal-organic chemical vapor deposition in order to study the effects of ammonia (NH3) flow rate and layer thickness on the structural quality and surface morphology of AlN layers by high-resolution X-ray diffraction, scanning electron microscopy, and atomic force microscopy. Lower NH3 flow rate improves crystallinity of the symmetric (0 0 0 2) plane in AlN layers. Ammonia flow rate is also correlated with surface quality; pit-free and smooth AlN surfaces have been obtained at a flow rate of 70 standard cm(3) per minute. Thicker AlN films improve the crystallinity of the asymmetric (1 0 1 (1) over bar 2) plane. (c) 2011 Elsevier Ltd. All rights reserved