Influence of Process Parameters on Chlorinated Biocide Decontamination by li-CO2 on Artificially Contaminated Model Materials     

Tiziana Lombardo  Marie Wörle  Vera Hubert  Erwin Hildbrand  Christina Hinterleitner  Ingo Mayer 《文物保护研究》2020,65(2):65-76

ABSTRACT

Previously, heavy use of biocides for the treatment of objects made of organic materials in museum collections (e.g. ethnographic, historical collections) was very common. Now suitable decontamination methods/technologies are being sought. A decontamination treatment by li-CO₂ was optimized that considered the specific requirements of museum objects. The treatment was tested on model materials artificially contaminated with biocide solutions containing dichlorodiphenyltrichloroethane (DDT), pentachlorophenol (PCP), lindane, and permethrin or cypermethrin. High decontamination was achieved for DDT, lindane, PCP, and permethrin on artificially biocide loaded wool and wood model materials. Optimal process parameter settings for li-CO₂ decontamination include a single 30?min cycle for woolen materials and three sequential 30?min cycles each for wood. These methods allow a reduction of at least 90% of all biocides for wool and between 70% and 85% for wood. Decontamination of the latter was more effective for less polar biocides as DDT and permethrin. Despite a significant improvement in decontamination for wood using co-solvents such as acetone, ethanol, and methyl tertiary-butyl ether (MTBE), their use is not recommended due to the increased risk of damage to the objects, in particular if a surface coating is present.  相似文献   

Nurturing leadership: equitable mentoring for the superintendency     

Ava J. Muñoz  Anita M. Pankake  Shirley Mills  Marie Simonsson 《International Journal of Leadership in Education》2018,21(3):284-292

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A Meta-Analysis of Single-Case Research on Mathematics Word Problem-Solving Interventions for English Learners with Learning Disabilities and Mathematics Difficulties     

Qingli Lei  Rose A. Mason  Yan Ping Xin  John L. Davis  Marie David  Catharine Lory 《Learning disabilities research & practice》2020,35(4):201-217

This single-case meta-analysis is the first to provide a quantitative synthesis of the published literature on mathematics word problem-solving intervention studies for English learners with learning disabilities and mathematics difficulties. A total of ten single-subject studies were included for analysis. The current study investigated the magnitude of the effect of mathematics interventions targeting the improvement of students’ mathematics word problem-solving performance, and analyzed variables that moderated this effect. Results indicate a moderate overall effect size of 0.81 (95% CI [0.71, 0.90]) on word problem-solving performance for English learners with learning disabilities and mathematics difficulties. Moderator variables such as the implementer of the interventions, instructional focus, and word problem-solving content significantly moderated the mathematics intervention effects.  相似文献   

Prenatal Risk Predicts Preschooler Executive Function: A Cascade Model     

Marie Camerota  Michael T. Willoughby 《Child development》2020,91(3):e682-e700

Little research has considered whether prenatal experience contributes to executive function (EF) development above and beyond postnatal experience. This study tests direct, mediated, and moderated associations between prenatal risk factors and preschool EF and IQ in a longitudinal sample of 1,292 children from the Family Life Project. A composite of prenatal risk factors (i.e., low birth weight, prematurity, maternal emotional problems, maternal prepregnancy obesity, and obstetric complications) significantly predicted EF and IQ at age 3, above quality of the postnatal environment. This relationship was indirect, mediated through infant general cognitive abilities. Quality of the postnatal home and child-care environments did not moderate the cascade model. These findings highlight the role of prenatal experience as a contributor to individual differences in cognitive development.  相似文献   

Equity,justice and standards: assessment decision making in higher education     

Marie Stowell 《Assessment & Evaluation in Higher Education》2004,29(4):495-510

Recent concerns about ‘fairness’ in university entrance have highlighted the need to review existing practices in admissions processes. The agendas for equity and social inclusion, however, must also apply to the processes and outcomes of higher education, where considerations of ‘standards’ are additionally crucial. As principles underpinning the assessment process, ‘equity’ and ‘justice’ and ‘academic standards’ are part of taken‐for‐granted cultures and practices which impact on decisions about progression, eligibility for awards and degree classification for individual students. Changing discourses of academic standards have given rise to contrasting decision‐making processes rooted in the role and operation of assessment boards. Contrasting models of assessment board cultures are developed to highlight how practices are beset by conceptual confusions about what is being assessed and the basis for judgements about success and failure in higher education. There is a strong case, not only for critical review of assessment processes, but also for monitoring outcomes for different social groups.  相似文献   

Multimethod assessment of self-regulated learning in college students: different methods for different components?     

Dörrenbächer-Ulrich  Laura  Weißenfels  Marie  Russer  Lea  Perels  Franziska 《Instructional Science》2021,49(1):137-163

Instructional Science - Although self-regulated learning (SRL) is seen as highly relevant for successful college learning, college students oftentimes show a lack in SRL abilities. Therefore, it...  相似文献   

Orthographic learning and transfer of complex words: insights from eye tracking during reading and learning tasks     

Emilie Ginestet  Jalyssa Shadbolt  Rebecca Tucker  Marie‐Line Bosse  S. Hlne Deacon 《Journal of Research in Reading》2021,44(1):51-69

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Conceptualising the heterogeneity of research-based spin-offs: A multi-dimensional taxonomy   总被引：1，自引：0，他引：1  

Philippe Mustar  Marie Renault  Evila Piva  Andy Lockett  Bart Clarysse  Nathalie Moray 《Research Policy》2006,35(2):289-308

Research-based spin-offs (RBSOs) have become an important aspect of the technology transfer process. Emanating from what is conventionally a non-commercial environment, RBSOs pose major challenges if they are to realise their potential to meet the objectives of their founders and the parent research organisations (PROs) from which they emerge. An important issue is to understand the heterogeneity of RBSOs. This paper reviews the literature on RBSO typologies to develop a taxonomy of RBSOs. We identify common themes in relation to these typologies in relation to (1) spin-off creation and (2) spin-off development. The dimensions that differentiate between firms are the type of resources, the business model and the institutional link. We identify gaps in current typologies in order to propose avenues for future conceptual and empirical research.  相似文献   

OCCUPATIONAL/CAREER INDECISION FOR ECONOMICALLY DISADVANTAGED HIGH SCHOOL STUDENTS OF HIGH INTELLECTUAL ABILITY: A MIXED‐METHODS COGNITIVE PROCESS MODEL          下载免费PDF全文

Jae Yup Jung  Marie Young 《Psychology in the schools》2017,54(7):718-735

A mixed‐methods design was employed to identify the cognitive processes that lead to occupational/career indecision for economically disadvantaged adolescents of high intellectual ability. In the first phase, interview data collected from 26 economically disadvantaged intellectually gifted Australian adolescents were analyzed using grounded theory to develop two alternative models of cognitive processes that lead to occupational/career indecision. In the second phase, these models were quantitatively tested and refined using structural equation modeling of survey data collected from 917 economically disadvantaged intellectually gifted Australian adolescents. The finally accepted model, identified using a competing models strategy, suggested that valuing the thoughts of family on general matters is positively predictive of a desire to live up to one's potential and the experience of amotivation about the occupational decision. In turn, occupational amotivation appears to be positively associated with occupational indecision, but negatively associated with multipotentiality and a desire to fulfill one's potential.  相似文献   

Evaluating the effects of faculty development: theoretical framework and empirical implementation     

Bernadette Charlier  Marie Lambert 《International Journal for Academic Development》2020,25(2):162-175

ABSTRACT

This article implements a systemic framework to evaluate the long-term effects of a program characterized by a SoTL approach and a hybrid learning environment. The importance of the difference between the perception of long-term effects on individual professional development on the one hand and the development of collective practices on the other, is interpreted with reference to certain shortcomings of the faculty development program’s learning design and its non-alignment with institutional practices. Based on this in-depth research, concrete ways to take account of the complexity of faculty development programs are proposed, both for research into and development of such programs and their impact at individual and institutional levels.  相似文献