Child sexual abuse and persistence of risky sexual behaviors and negative sexual outcomes over adulthood: Findings from a birth cohort

ObjectivesTo determine the impact of child sexual abuse (CSA) on adult sexual behaviors and outcomes over three age periods.MethodsA longitudinal study of a birth cohort born in Dunedin, New Zealand in 1972/1973 was used. Information on CSA was sought at age 26, and on sexual behaviors and outcomes at ages 21, 26, and 32. Comparisons were over the whole period from age 18 to 32, then for the three age periods from age 18 to 21, 21 to 26, and 26 to 32, adjusting for measures of family environment.ResultsOverall, 465 women and 471 men (91.9% of the surviving cohort) answered questions about CSA. Contact CSA was reported by 30.3% of women and 9.1% of men. For abused women, significantly increased rates were observed for number of sexual partners, unhappy pregnancies, abortion, and sexually transmitted infections from age 18 to 21; with rates approaching those of nonabused over time. Conversely, for abused men rates were not significantly elevated in the youngest age period, but were for number of partners from age 26 to 32 and acquisition of herpes simplex virus type 2 from age 21 to 32.ConclusionsGender and age are critical when considering the effect of CSA. While the profound early impact of CSA demonstrated for women appears to lessen with age, abused men appear to carry increased risks into adulthood.Practice implicationsCSA is common and should be considered when young women present with unwanted conceptions or seek multiple terminations, and when men continue to have high risk sexual behavior into adulthood. Furthermore, if CSA is disclosed, sexual risks in adulthood need to be considered.     

为什么钟表的默认时间都是10：10

你有没有注意过,买手表之前,手表的时间总是设定在10点10分。这是为什么呢？有人说是为了纪念被刺杀的总统,有人说是为了纪念广岛、长崎原子弹爆炸的死难者,其实都不然。那真正的原因是什么呢？     

Conceptual continuity and the science of baseball: using informal science literacy to promote students’ science learning

This project explores conceptual continuity as a framework for understanding students’ native ways of understanding and describing. Conceptual continuity suggests that the relationship between the use of words in one genre and the scientific genre can exist at varying levels of association. This perspective can reveal the varied relationships between ideas explained in everyday or vernacular genres and their association to scientific explanations. We conducted a 2-year study involving 15 high school baseball players’ understanding of the physics involved in baseball. First, we conducted a quantitative assessment of their science understanding by administering a test prior to season one (2006) and season two (2007). Second, we examined the types of linguistic resources students used to explain their understanding. Third, we revisited our data by using conceptual continuity to identify similarities between students’ conceptual understanding in the informal contexts and their similarities to canonical scientific ideas. The results indicated students’ performance on the multiple-choice questions suggested no significant improvement. The qualitative analyses revealed that students were able to accurately explain different components of the idea by using a diversity of scientific and non-scientific genres. These results call attention to the need to reconstruct our vision of science learning to include a more language sensitive approach to teaching and learning.     

Discrimination and Ethnic-Racial Socialization Among Youth Adopted From South Korea Into White American Families

The current study examined how discrimination relates to adjustment outcomes in a sample of internationally, transracially adopted Korean Americans from the Minnesota Sibling Interaction and Behavior Study (N = 456 adoptees; M_age at T1 = 14.9, M_age at T2 = 18.3, M_age at T3 = 22.3). The moderating roles of ethnic socialization and preparation for bias by parents (i.e., ethnic-racial socialization) were also examined. Results indicated that discrimination predicted higher levels of depressive and externalizing symptoms in youth who reported less preparation for bias. In those experiencing more preparation for bias, associations were not significantly different from zero. Ethnic socialization did not moderate these associations. Such findings provide important information for adoptive parents regarding how to prepare their children to cope with discrimination.     

¿Software para hacer pensar? Sobre la yuxtaposición de los sistemas simbólicos

Una de las ideas más viejas y resistentes que forman parte del acervo habitual de los críticos de la cultura es la de la competitividad e incompatibilidad de los lenguajes y sistemas de símbolos (palabra-imagen, etc.). Lo que parece ser sólo una manifestación más dè la necesidad de zanjar la complejidad de las cosas con la toma de partido y la división entre buenos y malos. Pero las investigaciones de los últimos años sobre creatividad e imagen y ahora sobre el ordenador, nos obligan a revisar la idea y a adoptar una posición más constructiva y optimista. El artículo de Dickson subraya, además de ese aspecto constructivo de la multi-representación, otro valor esencial y no demasiado comentado del ordenador: su capacidad de interlocutor y maestro de ceremonias en ese diálogo constructivo de lengua a lengua. Alumnos y profesores parecen tener un papel más gratificante en esa nueva concepción educativa del ordenador.     

Efficient capture of circulating tumor cells with a novel immunocytochemical microfluidic device

Ability to perform cytogenetic interrogations on circulating tumor cells (CTCs) from the blood of cancer patients is vital for progressing toward targeted, individualized treatments. CTCs are rare compared to normal (bystander) blood cells, found in ratios as low as 1:10⁹. The most successful isolation techniques have been immunocytochemical technologies that label CTCs for separation based on unique surface antigens that distinguish them from normal bystander cells. The method discussed here utilizes biotin-tagged antibodies that bind selectively to CTCs. The antibodies are introduced into a suspension of blood cells intending that only CTCs will display surface biotin molecules. Next, the cell suspension is passed through a microfluidic channel that contains about 9000 transverse, streptavidin coated posts. A CTC making contact with a post has the opportunity to engage in a biotin-streptavidin reaction that immobilizes the cell. Bystander blood cells remain in suspension and pass through the channel. The goal of the present study is to establish the technical performance of these channels as a function of antigen density and operating conditions, especially flow rate. At 18 μL/min, over 70% of cells are captured at antigen densities greater than 30 000 sites/cell while 50% of cells are captured at antigen densities greater than 10 000. It is found that lower flow rates lead to decreasing cell capture probabilities, indicating that some streamlines develop which are never close enough to a post to allow cell-post contact. Future modeling and streamline studies using computational fluid dynamics software could aid in optimization of channel performance for capture of rare cells.     

A Clean Sweep: The Tools and Processes of a Successful Metadata Migration

ABSTRACT

In 2016, the University of Utah's J. Willard Marriott Library migrated digital asset management systems from CONTENTdm, a vendor-provided solution from OCLC, to Solphal, a homegrown system utilizing several open source tools. During the migration, issues with metadata led to a large-scale metadata cleanup and standardization project, enhancing discovery in the new system. This article discusses the method used to determine which system would best meet the library's needs, methods for metadata migration, issues observed during migration, metadata management capabilities of the new system, and future plans for post-migration metadata cleanup and remediation to ensure that the metadata is consistent with best practices.     

Scaling Within Rather Than Scaling Up: Implications from Students' Experiences in Reforming Urban Middle Schools

This article uses urban middle school student's interviews to describe the instructional differences they faced each day and the effects of these differences on what they learned. Data from a cohort of nearly 200 students over two years revealed common definitions of how they wanted their teachers to act and the kinds of classroom activities they wanted to be engaged in. But more important, their observations revealed stark differences in their actual experiences. Too few students experienced the quality instruction they desired. Students praised teachers who were willing to help, were strict but nice, and were able to explain. They also wanted instructional settings where they were challenged by meaningful projects and experiments, worked more interdependently with their peers, and combined work with fun. We conclude from these student observations that reform efforts will be more successful in settings that nurture, maintain, and reinforce classrooms like those so aptly described by students and promote the spread of these classrooms by taking advantage of the talents of exemplary staff within buildings (i.e., scaling within).