Higher education in transition: An international perspective     

C. Arnold Anderson 《Higher Education》1979,8(1):3-8

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Book reviews     

C. Arnold Anderson  John Brennan  Robert H. Rossberg  Noel Entwistle  Max Streit  Gareth Williams  George Psacharopoulos 《Higher Education》1973,2(4):493-500

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Education on the appalachian trail: What 2,000 miles can teach us about learning     

Karen D. Arnold 《About Campus》2007,12(5):2-9

Rather than dwelling on why too many men don't succeed in college, trekker Karen Arnold examines the features of an experience in which many men do excel: the long hike from Georgia to Maine. Educators can learn why accomplishing this feat may be more rewarding than college.  相似文献   

Breaking the Cycle: Future Faculty Begin Teaching with Learner-Centered Strategies after Professional Development     

Diane Ebert-May  Terry L. Derting  Timothy P. Henkel  Jessica Middlemis Maher  Jennifer L. Momsen  Bryan Arnold  Heather A. Passmore 《CBE life sciences education》2015,14(2)

The availability of reliable evidence for teaching practices after professional development is limited across science, technology, engineering, and mathematics disciplines, making the identification of professional development “best practices” and effective models for change difficult. We aimed to determine the extent to which postdoctoral fellows (i.e., future biology faculty) believed in and implemented evidence-based pedagogies after completion of a 2-yr professional development program, Faculty Institutes for Reforming Science Teaching (FIRST IV). Postdocs (PDs) attended a 2-yr training program during which they completed self-report assessments of their beliefs about teaching and gains in pedagogical knowledge and experience, and they provided copies of class assessments and video recordings of their teaching. The PDs reported greater use of learner-centered compared with teacher-centered strategies. These data were consistent with the results of expert reviews of teaching videos. The majority of PDs (86%) received video ratings that documented active engagement of students and implementation of learner-centered classrooms. Despite practice of higher-level cognition in class sessions, the items used by the PDs on their assessments of learning focused on lower-level cognitive skills. We attributed the high success of the FIRST IV program to our focus on inexperienced teachers, an iterative process of teaching practice and reflection, and development of and teaching a full course.  相似文献   

Smartphone-interfaced lab-on-a-chip devices for field-deployable enzyme-linked immunosorbent assay     

Arnold Chen  Royal Wang  Candace R. S. Bever  Siyuan Xing  Bruce D. Hammock  Tingrui Pan 《Biomicrofluidics》2014,8(6)

The emerging technologies on mobile-based diagnosis and bioanalytical detection have enabled powerful laboratory assays such as enzyme-linked immunosorbent assay (ELISA) to be conducted in field-use lab-on-a-chip devices. In this paper, we present a low-cost universal serial bus (USB)-interfaced mobile platform to perform microfluidic ELISA operations in detecting the presence and concentrations of BDE-47 (2,2′,4,4′-tetrabromodiphenyl ether), an environmental contaminant found in our food supply with adverse health impact. Our point-of-care diagnostic device utilizes flexible interdigitated carbon black electrodes to convert electric current into a microfluidic pump via gas bubble expansion during electrolytic reaction. The micropump receives power from a mobile phone and transports BDE-47 analytes through the microfluidic device conducting competitive ELISA. Using variable domain of heavy chain antibodies (commonly referred to as single domain antibodies or Nanobodies), the proposed device is sensitive for a BDE-47 concentration range of 10⁻³–10⁴μg/l, with a comparable performance to that uses a standard competitive ELISA protocol. It is anticipated that the potential impact in mobile detection of health and environmental contaminants will prove beneficial to our community and low-resource environments.  相似文献   

Assessment in early childhood education: threats and challenges to effective assessment of immigrant children     

Esther Ntuli  Arnold Nyarambi  Moussa Traore 《Journal of Research in Special Educational Needs》2014,14(4):221-228

Research indicates that early childhood professionals gather assessment information to monitor child development and learning, to guide curriculum planning and decision making, to identify children who may have special needs, to report and communicate with others, and to evaluate programmes. A review of literature indicates that immigrant children have low achievement assessment scores as compared with mainstream American children, also immigrant children enter kindergarten already behind their mainstream American peers. The current study explored early childhood teachers' perceptions of assessment measures used with immigrant children and the challenges faced when assessing immigrant children. Findings of the study reveal that there are several factors that make early childhood teachers fail to gather effective assessment information from immigrant children. Unless the factors are addressed, planning for effective curriculum for immigrant children using assessment data will continue to be a challenge for early childhood teachers. Factors that continue to affect gathering effective assessment data from immigrant children include language barriers, cultural clashes, socio‐economic factors, and culturally and linguistically biased assessment measures.  相似文献   

Book reviews     

Arnold J. Meltsner  Michael J. Moravcsik 《Minerva》1988,24(1):134-142

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Factors influencing international curricular diffusion     

Arnold B. Grobman 《Studies in Educational Evaluation》1976,2(3):227-232

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Noise-enhanced dynamic single leg balance in subjects with functional ankle instability     

Scott Ross  Brent Arnold 《运动与健康科学(英文)》2012,1(2):102-106

BackgroundStochastic resonance stimulation (SRS) transmits subsensory electrical Gaussian white noise into the body to enhance sensorimotor function. This therapy has improved static single leg balance in subjects with functional ankle instability. However, the effect of this stimulation on dynamic single leg balance is not known. Improvements in dynamic single leg balance with SRS may have implications for enhancing functional rehabilitation for ankle instability. Thus, the purpose of this study was to determine the effects of SRS on dynamic single leg balance in subjects with functional ankle instability.MethodsThis study was an experimental research design and data were collected in a sports medicine research laboratory. Twelve subjects with functional ankle instability (69 ± 15 kg; 173 ± 10 cm; 21 ± 2 years) reported a history of ankle sprains and instability at the ankle with physical activity. A single leg jump-landing test was used to assess dynamic balance. Subjects were required to jump between 50% and 55% of the maximal vertical jump height, land on a single leg atop a force plate, and stabilize as quickly as possible. Jump-landing tests were performed with and without SRS. Three trials were performed for each treatment condition (SRS and control). A randomized block design was used to determine test order. Anterior/posterior and medial/lateral time-to-stabilization were computed to assess dynamic balance. Lesser time indicated better stability. One-tailed paired samples t tests were used for analysis (α ≤ 0.05).ResultsSRS improved anterior/posterior time-to-stabilization (stochastic resonance = 1.32 ± 0.31 s, control = 1.74 ± 0.80 s, p = 0.03), but did not enhance medial/lateral time-to-stabilization (stochastic resonance = 1.95 ± 0.40 s, control = 1.92 ± 0.48 s, p = 0.07).ConclusionClinicians might use SRS to facilitate balance improvements with sagittal plane dynamic single leg balance exercises that patients may not be able to perform otherwise.  相似文献   

THE DECENTRALIZED CENTRAL AGENCY: Suburbia Meets the BJE of Greater New York     

Rabbi Arnold D. Samlan  Irene Lustgarten 《Journal of Jewish Education》2013,79(3):59-63

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