The audio postcard assignment: Practicing the use of descriptive language     

Kristina A. Wenzel Egan 《Communication Teacher》2018,32(3):131-135

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Chemistry for whom? Gender awareness in teaching and learning chemistry     

Kristina Andersson 《Cultural Studies of Science Education》2017,12(2):425-433

Marie Ståhl and Anita Hussénius have defined what discourses dominate national tests in chemistry for Grade 9 in Sweden by using feminist, critical didactic perspectives. This response seeks to expand the results in Ståhl and Hussénius’s article Chemistry inside an epistemological community box!—Discursive exclusions and inclusions in the Swedish national tests in chemistry, by using different facets of gender awareness. The first facet—Gender awareness in relations to the test designers’ own conceptions—highlighted how the gender order where women are subordinated men becomes visible in the national tests as a consequence of the test designers internalized conceptions. The second facet—Gender awareness in relation to chemistry—discussed the hierarchy between discourses within chemistry. The third facet—Gender awareness in relation to students—problematized chemistry in relation to the students’ identity formation. In summary, I suggest that the different discourses can open up new ways to interpret chemistry and perhaps dismantle the hegemonic chemistry discourse.  相似文献   

Changes in Lithuanian Pre-school and Pre-primary Education Quality Over the Last Decade     

Ona Monkeviciene  Kristina Stankeviciene 《美中教育评论》2011,(1):119-130

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A Dual Identity Approach for Conceptualizing and Measuring Children's Gender Identity          下载免费PDF全文

Carol Lynn Martin  Naomi C. Z. Andrews  Dawn E. England  Kristina Zosuls  Diane N. Ruble 《Child development》2017,88(1):167-182

The goal was to test a new dual identity perspective on gender identity by asking children (n = 467) in three grades (M_age = 5.7, 7.6, 9.5) to consider the relation of the self to both boys and girls. This change shifted the conceptualization of gender identity from one to two dimensions, provided insights into the meaning and measurement of gender identity, and allowed for revisiting ideas about the roles of gender identity in adjustment. Using a graphical measure to allow assessment of identity in young children and cluster analyses to determine types of identity, it was found that individual and developmental differences in how similar children feel to both genders, and these variations matter for many important personal and social outcomes.  相似文献   

From Interaction to Intersubjectivity: Facilitating online group discourse processes     

Vanessa Paz Dennen  Kristina Wieland 《Distance Education》2007,28(3):281-297

This article examines the online discourse that took place in representative threads from two classes, seeking to document indicators that students did or did not engage in co‐construction of knowledge. Stahl's (2006 Stahl, G. 2006. Group cognition: Computer support for building collaborative knowledge, Cambridge, MA: MIT Press.  [Google Scholar]) social theory of computer supported collaborative learning (CSCL) is used along with discourse analysis methods to examine these course dialogues. Findings show the class that had a peer‐like, consistent facilitative instructor and discussion anchored around questions and shared artifacts was more likely to engage in discussion leading to the negotiation of knowledge and understanding. This class relied on social acknowledgements, questions, and shared exploration of perspectives and theories throughout their discussion. These elements and strategies appear to be important components that make up for lower levels of tacit understanding in online environments, thus enabling learners to interact in social learning processes. The other class, which lacked a facilitative instructor, did not have the same results. Although interaction levels were equal and students carried topical motifs such as the phrase “faster, better, cheaper” from message to message, students in this other class did not engage deeply or develop new understanding of the course material through the discussion.  相似文献   

Writing for the public     

Hailley Fargo  Kristina Franklin  Peyton Loomis  Brooke Long-Yarrison  Kristin Newvine 《The Information Society》2020,36(2):124-129

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Impact of age on host responses to diet-induced obesity:Development of joint damage and metabolic set points     

Kelsey H.Collins  Graham Z.MacDonald  David A.Hart  Ruth A.Seerattan  Jaqueline L.Rios  Raylene A.Reimer  Walter Herzog 《运动与健康科学(英文)》2020,9(2):132-139,197

Background:Osteoarthritis is one of the leading causes of pain and disability worldwide,and a large percentage of patients with osteoarthritis are individuals who are also obese.In recent years,a series of animal models have demonstrated that obesity-inducing diets can result in synovial joint damage(both with and without the superimposition of trauma),which may be related to changes in percentage of body fat and a series of low-level systemic inflammatory mediators.Of note,there is a disparity between whether the dietary challenges commence at weaning,representing a weanling onset,or at skeletal maturity,representing an adult onset of obesity.We wished to evaluate the effect ofthe dietary exposure time and the age at which animals are exposed to a high-fat and high-sucrose(HFS) diet to determine whether these factors may result in disparate outcomes,as there is evidence suggesting that these factors result in differential metabolic disturbances.Based on dietary exposure time,we hypothesized that rats fed an HFS diet for 14 weeks from weaning(HFS Weanling) would demonstrate an increase in knee joint damage scores,whereas rats exposed to the HFS diet for 4 weeks,starting at 12 weeks of age(HFS Adult) and rats exposed to a standard chow diet(Chow)would not display an increase in knee joint damage scores.Methods:Male Sprague-Dawley rats were fed either an HFS diet for 14 weeks from weaning(HFS Weanling) or an HFS diet for 4 weeks,starting at 12 weeks of age(HFS Adult).At sacrifice,joints were scored using the modified Mankin Criteria,and serum was analyzed for a defined subset of inflammatory markers(Interleukin-6,leptin,monocyte chemoattractant protein-1,and tumor necrosis factorα).Results:When the HFS Weanling and HFS Adult groups were compared,both groups had a similar percent of body fat,although the HFS Weanling group had a significantly greater body mass than the HFS Adult group.The HFS Weanling and HFS Adult animals had a significant increase in body mass and percentage of body fat when compared to the Chow group.Although knee joint damage scores were low in all 3 groups,we found,contrary to our hypothesis,that the HFS Adult group had statistically significant greater knee joint damage scores than the Chow and HFS Weanling groups.Furthermore,we observed that the HFS Weanling group did not have significant differences in knee joint damage scores relative to the Chow group.Conclusion:These findings indicate that the HFS Weanling animals were better able to cope with the dietary challenge of an HFS diet than the HFS Adult group.Interestingly,when assessing various serum proinflammatory markers,no significant differences were detected between the HTS Adult and HFS Weanling groups.Although details regarding the mechanisms underlying an increase in knee joint damage scores in the HFS Adult group remain to be elucidated,these findings indicate that dietary exposure time maybe less important than the age at which an HFS diet is introduced.Moreover,increases in serum proinflammatory mediators do not appear to be directly linked to knee joint damage scores in the HFS Weanling group animals but may be partially responsible for the observed knee joint damage in the adults over the very short time of exposure to the HFS diet.  相似文献   

Estimating fat-free mass in elite-level male rowers: a four-compartment model validation of laboratory and field methods     

Kristina L. Kendall  David H. Fukuda  Parker N. Hyde  Abbie E. Smith-Ryan  Jordon R. Moon  Jeffrey R. Stout 《Journal of sports sciences》2017,35(7):624-633

The purpose of this study was to investigate the accuracy of fat-free mass (FFM) estimates from two-compartment (2C) models including air displacement plethysmography (ADP), ultrasound (US), near-infrared interactance (NIR), and the Jackson and Pollock skinfold equation (SKF) against a criterion four-compartment (4C) model in elite male rowers. METHODS: Twenty-three elite-level male rowers (mean± SD; age 24.6 ± 2.2 years; stature: 191.4 ± 7.2 cm; mass: 87.2 ± 11.2 kg) participated in this investigation. All body composition assessments were performed on the same day in random order, except for hydrostatic weighing (HW), which was measured last. FFM was evaluated using a 4C model, which included total body water from bioimpedance spectroscopy, body volume from HW, and total body bone mineral via dual-energy X-ray absorptiometry. The major findings of the study were that the 2C models evaluated overestimated FFM and should be considered with caution for the assessment of FFM in elite male rowers. Future studies should use multiple-compartment models, with measurement of TBW and bone mineral content, for the estimation of FFM.  相似文献   

EDUCATIONAL EXPERIENCES,NEEDS, AND INTERESTS OF OLDER ADULTS WITH MENTAL RETARDATION     

Michael R. Benz  Kristina E. Kennann 《Educational gerontology》2013,39(6):509-523

This article presents baseline information on the educational experiences, needs, and interests of a statewide sample of older adults with mental retardation. Data were collected through an interview with the older person with mental retardation and through a questionnaire sent to a knowledgeable other who was matched to each older adult. Findings are presented on previous educational experiences, current educational opportunities, and educational needs and interests. Results indicate that this group of older persons strongly desires continued opportunity for learning, particularly in academic and independent living areas. Two subgroups within this sample were least likely to have access to instructional opportunities: persons 55 years or older and persons living in community residences with less than 24‐hour care. Access to this instruction would improve the independence and quality of life of both these groups, as it would for the entire sample. Implications of the findings for educators in gerontology, mental retardation, and adult education are discussed.  相似文献   

Validation of automated scoring of science assessments     

Ou Lydia Liu  Joseph A. Rios  Michael Heilman  Libby Gerard  Marcia C. Linn 《科学教学研究杂志》2016,53(2):215-233

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