The Inveterate Tinkerer 14. ExperimentsWith Liquid Drops     

Chirag Kalelkar 《Resonance》2018,23(6):693-701

In this section of Resonance, we invite readers to pose questions likely to be raised in a classroom situation. We may suggest strategies for dealing with them, or invite responses, or both. “Classroom” is equally a forum for raising broader issues and sharing personal experiences and viewpoints on matters related to teaching and learning science.  相似文献   

Silent Partners: Developing a Critical Understanding of Community Partners in Technical Communication Service-Learning Pedagogies     

Amy C. Kimme Hea  Rachael Wendler Shah 《Technical Communication Quarterly》2016,25(1):48-66

Although many technical communication teachers and programs integrate some form of service-learning pedagogy, there is a dearth of technical communication research on the silent partners of these projects: the community partners. Drawing upon research data from 14 former community partners of professional writing service-learning courses, the authors suggest that understanding community partners’ own self-defined stakes in service-learning projects can challenge hyperpragmatist representations of community partners and aid us in the continued creation, management, and critical evaluation of service-learning pedagogies and curricula.  相似文献   

Adapting an Interprofessional Training Model for Social Work Field Placements: An Answer for Better Mental Health Care Outreach for Older Adults in Primary Care     

Avani Shah  Tracy Wharton  Forrest Scogin 《Journal of Teaching in Social Work》2017,37(5):438-453

Professional shortages of geriatrically trained social workers pose a barrier to mental health care for older adults. Integrating graduate social work interns into primary care settings may increase the availability of trained social workers. However, few studies provide guidance on how to develop an interprofessional healthcare placement focused on the needs of older adults. This article discusses a model training program created by a psychology department (with input from social work faculty) that can be adapted by schools of social work. Client outcomes (n = 47) indicate significant improvement when using this model.  相似文献   

The inveterate tinkerer 10. Analog computing with soap films     

Chirag Kalelkar 《Resonance》2017,22(12):1213-1218

In this series of articles, the authors discuss various phenomena in fluid dynamics, which may be investigated via table-top experiments using low-cost or home-made instruments. The tenth article in this series demonstrates the use of the area-minimization property of soap films in the computation of analog solutions to mathematical problems.  相似文献   

语境是检验与评价言语活动的唯一依据     

单强 《潍坊教育学院学报》2005,18(2):30-33

我们说话或写文章时常出现表达不清的现象,而在领会别人的话语或文章的时候又会存在理解不透的问题,所有这些都与语境有关。本文据此提出了语境是检验与评价言语活动的唯一依据这个观点,主要展开内容有:语境能帮助我们使用尽量少的语言材料传达出尽可能多的言语信息;语境能帮助我们铺设条件,排除歧义,准确理解言语;语境能帮助我们在言语交际中使多义语词的语义具体化;言语意义往往不等于语词意义的简单加合,语境能帮助我们选择信息;语境能对语词意义施加影响,甚至改变语词的一些意义;根据语境,筛选出表达真正所需的语词。  相似文献   

Indexed Captioned Searchable Videos: A Learning Companion for STEM Coursework     

Tayfun Tuna  Jaspal Subhlok  Lecia Barker  Shishir Shah  Olin Johnson  Christopher Hovey 《Journal of Science Education and Technology》2017,26(1):82-99

Videos of classroom lectures have proven to be a popular and versatile learning resource. A key shortcoming of the lecture video format is accessing the content of interest hidden in a video. This work meets this challenge with an advanced video framework featuring topical indexing, search, and captioning (ICS videos). Standard optical character recognition (OCR) technology was enhanced with image transformations for extraction of text from video frames to support indexing and search. The images and text on video frames is analyzed to divide lecture videos into topical segments. The ICS video player integrates indexing, search, and captioning in video playback providing instant access to the content of interest. This video framework has been used by more than 70 courses in a variety of STEM disciplines and assessed by more than 4000 students. Results presented from the surveys demonstrate the value of the videos as a learning resource and the role played by videos in a students learning process. Survey results also establish the value of indexing and search features in a video platform for education. This paper reports on the development and evaluation of ICS videos framework and over 5 years of usage experience in several STEM courses.  相似文献   

Effects of concomitant diabetes mellitus and hyperthyroidism on testicular and epididymal histoarchitecture and steroidogenesis in male animals     

Nazar Ali Korejo  Quan-wei Wei  Atta Hussain Shah  Fang-xiong Shi 《Journal of Zhejiang University. Science. B》2016,17(11):850-863

This study evaluated the effects of comorbid disorders of diabetes and hyperthyroidism in the adult male mice. In total, 32 ICR strain mice were equally distributed into four groups: control (C), diabetic (D), diabetic-plushyperthyroid (DH), and hyperthyroid (H). Mice allocated for diabetes received a single intraperitoneal injection of streptozotocin (STZ) at 200 mg/kg body weight. At the onset of diabetes, one group of mice was concomitantly injected levothyroxine (LT4; 0.3 mg/kg body weight) and the other set of animals received the same treatment independently on a daily basis. The body weight, as well as the testicular and epididymal weights, was reduced markedly in D and DH mice. Higher trends of blood glucose levels were seen in the DH group, in comparison to euthyroid diabetic mice. Thyroid hormones could exert a transient effect on blood glucose homeostasis by altering the serum blood glucose level in diabetic patients. Histomorphometric analysis showed increased luminal sizes of seminiferous tubules, along with decreased epithelial height and atrophic changes in germinal stem cells in the testis of DH and H mice. Caput epididymis of DH mice showed extensive compaction of principal cells, loss of stereocilia, lipid vacuolization, and inflammatory infiltrations; however, damaged tubular integrity, packed clear cells, exfoliated cells, and round spermatids were profoundly noticed in the cauda epididymis. Hyperthyroidism elevated the serum testosterone levels in H and DH mice and produced critical damages to the histoarchitecture of the epididymis. Collectively, this experiment endeavored to mimic the polyglandular autoimmune syndrome, which will be helpful to better understand the reasons for male infertility in diabetic-cum-hyperthyroid patients.  相似文献   

A design science research methodology for developing a computer-aided assessment approach using method marking concept     

Hussein Genemo  Shah Jahan Miah  Alasdair McAndrew 《Education and Information Technologies》2016,21(6):1769-1784

Assessment has been defined as an authentic method that plays an important role in evaluating students’ learning attitude in acquiring lifelong knowledge. Traditional methods of assessment including the Computer-Aided Assessment (CAA) for mathematics show limited ability to assess students’ full work unless multi-step questions are sub-divided into sub questions. This issue persisted significant drawback especially within the notion of method marking approach. To address this issue, the aim of the study is to develop a methodological framework that will create an information and communications technology (ICT) artefact prototype. The prototype (termed as method marking assessment (MMA) artefact) implements a method-marking assessment concept to assess through multi-step questions. Extensive literature reviews have revealed that there are features in common between complex-problem solution characteristics and multi-steps questions assessment using ICT; therefore complex problems paradigm is used in the study for developing the MMA prototype.  相似文献   

An immunological based study of monoclonal gammopathies among suspected individuals in Kashmir region     

M. Shafi  M. Zargar  Z. A. Shah  M. Salahuddin  M. Siddiqi 《Indian journal of clinical biochemistry : IJCB》1998,13(2):106-110

Serum and urine samples from 513 patients clinically suspected of monoclonal gammopathies over a period of five years (1992–97) were subjected to various immunological procedures viz, electrophoresis, immunoelectrophoresis and immunoglobulin estimations. Laboratory investigations confirmed gammopathies in 10.33%. It was observed that overall age of incidence for monoclonal gammopathies in both sexes was between 42–72 years with a male to female ratio of 1.4∶1. Predominant paraprotein detected was IgG type (75.47%) followed by IgA (16.98%) and Bence Jones proteins (7.55%). Amongst positive patients, 64.16% were having kappa (k) type light chains and 35.84% lambda (δ) type light chains. 69.39% patients with serum M component (IgG and IgA) had Bence Jones proteinuria. Densitometric scanning revealed that majority of IgG type paraprotein was found in the slow gamma globulin region and majority of IgA type paraprotein was found equally distributed between beta and fast gamma globulin regions. Both types had decreased albumin and alpha-2-globulin concentrations as compared to normal controls. Immunoglobulin levels in patients with paraprotein had very high levels of serum IgG (6467.0 mg%) and IgA (2714.0 mg%) in respective types of monoclonal gammopathies; the rest of immunoglobulin classes were either at normal or decreased levels.  相似文献   

A study of serum lipid profile part-1: Establishment of normal reference values of serum lipid levels in healthy vegetarian population of Gujarat     

C. I. Jhala  U. V. Shah  T. K. Shah  B. K. Naik  J. D. Dafda 《Indian journal of clinical biochemistry : IJCB》1998,13(1):1-7

Fasting samples of 1329 apparently healthy vegetarian Gujarati population were tested for total cholesterol, triglycerides and three major fractions of lipoproteins, i.e. high density lipoproteins, low density lipoproteins and very low density lipoproteins. All the values showed marked increase with the age. Except for serum triglycerides, values differ in males and females in the age group of above 45 years. Compared to Northern Indian population low density lipoprotein and high density lipoprotein values were higher, but values of triglycerides and very low density lipoproteins were lower. There is no significant difference in total cholesterol values. Compared to Southern Indian population low density lipoprotein and very low density lipoprotein values were higher but values of triglycerides, total cholesterol and high density lipoprotein were lower. All serum lipid values were significantly lower than the Westem population. The range of values for both the sexes is presented for different age groups.  相似文献