Motivations and Concerns: Voices from Pre-service Language Teachers

Contemporary interactionist theories conceive identity formation as a dynamic process that is continuously co-constructed within a social context. For pre-service language teachers, teacher education programs constitute the context in which their professional identities are formed. This cross-sectional qualitative study aims at exploring variations in pre-service language teachers’ motivations, and concerns in order to understand how their identity is developed throughout teacher education programs. Data were collected from 121 pre-service language teachers at a state university in Turkey through their written reports. The differences across years with respect to their motivations and concerns indicated that as pre-service language teachers proceed along their education; their professional identity does not remain stable. The fluctuations observed among different year levels demonstrate the interplay between the context and the self. We suggest that these personal attributes need to be monitored in order to enhance language teacher education programs

The Kozai-Lidov Mechanism in Hydrodynamical Disks

We use three dimensional hydrodynamical simulations to show that a highly misaligned accretion disk around one component of a binary system can exhibit global Kozai-Lidov cycles, where the inclination and eccentricity of the disk are interchanged periodically. This has important implications for accreting systems on all scales, for example, the formation of planets and satellites in circumstellar and circumplanetary disks, outbursts in X-ray binary systems and accretion on to supermassive black holes.Comment: Accepted for publication in ApJ Letter

Translational Medicine in the Era of Social Media: A Survey of Scientific and Clinical Communities

Background: The integration of new scientific discoveries into clinical practice costs considerable time and resources. With the increased use of social media for scientific communication, new opportunities arise to "bridge the gap" in translational medicine. The present study aimed to investigate how medical professionals access scientific information and understand their view on the role of social media in translational medicine. Methods: A questionnaire regarding (i) the use of social media for scientific updates, (ii) the opportunities and challenges of social media for translational medicine, (iii) social media function Chatbot, and (iv) participant demographics was developed. The survey link was posted online from February, 2018, until April, 2018. Results: A total of 555 professionals responded to the survey. Respondents identified themselves predominantly as researcher/scientists (27%) or medical/biomedical students (15%). The majority of participants was employed at a university or research institute (59%), and most practiced either in Europe (48%) or in Asia (37%). Seventy-eight percent of respondents reported receiving most of scientific news and updates via non-social media options, such as journal websites and newspapers. Fifty-one percent of respondents believed that social media could contribute to closing the gap between scientific discovery and translation to medical application. The most crucial opportunity created by social media was found to be "connecting the right scientist to the right clinician." Participants rated "the translation of scientific finding to clinical practice is too fast before the safety is properly demonstrated" as the most crucial challenge. Half of the respondents were aware of their institutions policy on the professional use of social media. Only 2% of respondents had previously used Chatbot. Conclusions: Overall, medical professionals were positive about the idea that social media could contribute to the progress of translational medicine. However, it is clear that they are still being cautious about using social media for professional purposes. To fully harness the potential of social media on translational medicine, the medical community needs to be provided with educational programs, guidelines, and support infrastructure within social media.Open access journalThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at [email protected]

Men at the heart of mothering: Finding mother in Finding Nemo

After years of perpetuating myths of the subservient, ever-cheerful woman (or killing a maternal figure off at the start of a movie), Disney explored new ground in its blockbuster, Finding Nemo. Building on previous Disney critique by Elizabeth Bell and others, I argue that this film provides an expanded notion of who 'mother' is and what 'mothering' means. Firstly, I provide a brief review of social 'mothering', summarizing maternal functions as discussed by various feminist scholars. Secondly, I create a typology that assists our understanding of how Disney traditionally defines mothering in its discourse. Using elements of this typology, I then explore the ways in which Marlin, the father in Nemo, is engaged in mothering. Finally, I discuss the potential impact on viewers of portraying men as mothers and what has occurred in Disney films post-Nemo with regards to images of mothering

Identification of Potential Glycoprotein Biomarkers in Estrogen Receptor Positive (ER+) and Negative (ER-) Human Breast Cancer Tissues by LC-LTQ/FT-ICR Mass Spectrometry

Breast cancer is the second most fatal cancer in American women. To increase the life expectancy of patients with breast cancer new diagnostic and prognostic biomarkers and drug targets must be identified. A change in the glycosylation on a glycoprotein often causes a change in the function of that glycoprotein; such a phenomenon is correlated with cancerous transformation. Thus, glycoproteins in human breast cancer estrogen receptor positive (ER+) tissues and those in the more advanced stage of breast cancer, estrogen receptor negative (ER-) tissues, were compared. Glycoproteins showing differences in glycosylation were examined by 2-dimensional gel electrophoresis with double staining (glyco- and total protein staining) and identified by reversed-phase nano-liquid chromatography coupled with a hybrid linear quadrupole ion trap/ Fourier transform ion cyclotron resonance mass spectrometer. Among the identified glycosylated proteins are alpha 1 acid glycoprotein, alpha-1-antitrypsin, calmodulin, and superoxide dismutase mitochondrial precursor that were further verified by Western blotting for both ER+ and ER- human breast tissues. Results show the presence of a possible glycosylation difference in alpha-1-antitrypsin, a potential tumor-derived biomarker for breast cancer progression, which was expressed highest in the ER- samples

Estimated dietary phytoestrogen intake and major food sources among women during the year before pregnancy

<p>Abstract</p> <p>Background</p> <p>Phytoestrogens may be associated with a variety of different health outcomes, including outcomes related to reproductive health. Recently published data on phytoestrogen content of a wide range of foods provide an opportunity to improve estimation of dietary phytoestrogen intake.</p> <p>Methods</p> <p>Using the recently published data, we estimated intake among a representative sample of 6,584 women of reproductive age from a multi-site, population-based case-control study, the National Birth Defects Prevention Study (NBDPS). The NBDPS uses a shortened version of the Willett food frequency questionnaire to estimate dietary intake during the year before pregnancy. We estimated intake among NBDPS control mothers.</p> <p>Results</p> <p>Lignans contributed 65% of total phytoestrogen intake; isoflavones, 29%; and coumestrol, 5%. Top contributors to total phytoestrogen intake were vegetables (31%) and fruit (29%); for isoflavones, dairy (33%) and fruit (21%); for lignans, vegetables (40%) and fruit (29%); and for coumestans, fruit (55%) and dairy (18%). Hispanic women had higher phytoestrogen intake than non-Hispanic white or black women. Associations with maternal age and folic acid-containing supplements were more modest but indicated that older mothers and mothers taking supplements had higher intake.</p> <p>Conclusions</p> <p>The advantage of the approach used for the current analysis lies in its utilization of phytoestrogen values derived from a single laboratory that used state-of-the-art measurement techniques. The database we developed can be applied directly to other studies using food frequency questionnaires, especially the Willett questionnaire. The database, combined with consistent dietary intake assessment, provides an opportunity to improve our ability to understand potential associations of phytoestrogen intake with health outcomes.</p

LASA: Langer doorwerken is voor 50 procent met gezondheidsbeperkingen

Al jaren stimuleert de overheid oudere werkenden om langer door te werken. De gemiddelde uittreedleeftijd is hiermee gestegen van 61 jaar in 2006 naar 64,5 jaar in 2016. In een recent onderzoek met gegevens van de Longitudinal Aging Study Amsterdam (LASA) is onderzocht in hoeverre de stijging van de uittreedleeftijd samen is gegaan met een toename in het aantal jaren dat men met gezondheidsbeperkingen doorwerkt