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61.
Transportation agencies spend millions of dollars annually to repair civil transportation infrastructure including pavements, earth structures and approach slabs distressed by soft compressible soils and expansive soils. Several research studies performed at the University of Texas at Arlington (UTA) focused on stabilizing these problematic soils so that they will provide better and more stable support to the transportation infrastructure. This paper focuses on a summary of two major distresses and mechanisms, and remedial measures for addressing these distress problems. A combined lime-cement stabilization method is fully evaluated in providing better support of pavement infrastructure, and these results are described here. Another major transportation infrastructure problem involving bridge approach slabs requires different treatment methods, and these results are briefly described. As a part of the recently completed research study assessments, both shallow and deep soil treatment methods for stabilizing soils are fully evaluated for their effectiveness in arresting the distress posed to the pavements and bridge approach slabs. These results along with a few future research needs are presented in this paper. 相似文献
62.
Dimple Anand Sabari Das Sumit Ray Seema Bhargava Lalit Mohan Srivastava 《Indian journal of clinical biochemistry : IJCB》2014,29(1):93-96
Sepsis suffers from lack of specific clinical symptoms which contribute to one of the major causes of mortality. In the present study, our aim was to evaluate the role of a recent biomarker Procalcitonin (PCT) in predicting organ dysfunction. 71 patients admitted with sepsis were included in the study. PCT levels were measured at 0, 24, 72 h and 7th day and sequential organ failure assessment score (SOFA) scores were calculated. PCT levels significantly decreased (p < 0.001) in 89.3 % of surviving patients, whereas, in 60 % non surviving patients the PCT level increased significantly (p < 0.001). A significant positive correlation between PCT and SOFA score was observed in survivors at each hour. These observations indicate that PCT concentration is significantly associated with severity of multi organ dysfunction and also helps in determining the prognosis of septic patients. 相似文献
63.
Holger Gaertner Sebastian Wurster Hans Anand Pant 《School Effectiveness & School Improvement》2013,24(4):489-508
This study uses a school-level longitudinal control-group design to examine how teachers and principals of inspected versus uninspected schools perceive school improvement at their schools. During the phasing in of school inspections in the states of Berlin and Brandenburg (Germany), both inspected and uninspected schools were surveyed with respect to school improvement activities over a 1-year period. The main finding is that principals’ and teachers’ perceptions of school quality were highly stable, irrespective of the introduction of school inspections. The results show school inspections had a comparatively low impact on the aspects of school quality measured here. 相似文献
64.
An ordering system for a global information network is necessary in order to enable the user to retrieve the particular information he is looking for. Classification has been one of the methods of ordering. The principle of traditional classification has been based on the idea of partitioning the universe of knowledge in mutually exclusive classes, i.e. subjects. A particular topic is defined by narrower classification within a class following the principle of ‘genusspecies’ relationship. Ranganathan's system of faceted classification has only replaced the classification of terms into subjects and sub-subjects by classification of terms into five ambiguous categories. Taube's system of coordinate indexing gives full freedom to the user to combine any number of terms of his choice. To be effective for social sciences such a system has to overcome some difficult problems of semantics. The system MANIS described here maintains the traditional classification and yet allows the user to combine terms of his choice, where the choice is restricted to the terms belonging to the system of traditional classification. 相似文献
65.
This paper reports the results of a survey undertaken by the World Health Organization of health sciences libraries in Southeast Asia. It includes information on clientele, budget, personnel, collections, lending policy, dissemination of information, and reference services. The survey indicates that the collections in most of the health sciences libraries in Southeast Asia are deficient and that services provided to readers are inadequate. Recommendations for improvement are outlined. 相似文献
66.
In this article, we describe the development and implementation of a project, “Our Leaders Are Us: Youth Activism in Social
Movements”, that we undertook with New York City high school students exploring events leading up to and following the Supreme
Court’s landmark decision in Brown. As part of a 50th anniversary celebration of the Brown decision, we designed a series
of three workshops that sought to extend urban students’ knowledge of Brown, segregation, and activism and to examine the
roles of young people in critical civil rights campaigns. In addition, we discussed with students the ways in which young
people can be involved in contemporary social movements and the strategies they can use to effect what they perceive to be
needed changes in their lives. Along with the researchers’ extensive field notes, the participating students completed questionnaires
throughout the project so that their understanding of Brown and related issues could be documented. Using our findings, we
suggest ways that educators can develop and implement similar programs for use in schools.
相似文献
Erica N. WalkerEmail: |
67.
Subramania Ranganathan 《Resonance》1996,1(8):22-27
The mechanism of formation of indigo from 2-nitrobenzaldehyde and acetone is discussed in this article. Some new methods of making indigo are also described. 相似文献
68.
Steven M. Ross Padma G. Anand 《Educational technology research and development : ETR & D》1987,35(3):151-162
The purpose of this study was to evaluate a computer-based strategy for personalizing verbal problems used in mathematics
instruction. Personalization was achieved through a computer program that incorporated names of familiar people and events,
such as the student’s friends and birth date, into print copies of lesson examples. In two control treatments, concrete (nonadaptive)
contexts and abstract contexts were employed. Subjects were 54 fifth- and sixthgraders studying a lesson on division of fractions.
Results showed the personalized-context treatment to be advantageous relative to one or both control treatments for (a) solving
conventional word problems, (b) solving transfer problems, (c) recognizing rule procedures, and (d) developing favorable attitudes
toward materials. Theoretical interpretations of these effects are discussed, along with considerations about the practicality
and effectiveness of the present application using print materials compared to an earlier one using CAl. 相似文献
69.
Steven M. Ross Deborah McCormick Nancy Krisak Padma Anand 《Educational technology research and development : ETR & D》1985,33(3):169-178
The present paper examines a strategy intended to facilitate mathematics learning by adapting the context of instructional material to students’ backgrounds and interests. In four validation studies, the strategy was implemented through teacher management, using college students learning statistical probability rules as subjects. Achievement and attitude outcomes consistently favored treatment groups who received the adaptive contexts over control groups. The culmination of this research is the development of a computer-assisted model to increase the strategy’s practicality and sensitivity to learner differences. The computer model uses stored information about each student to personalize explanations and story examples on a fractions unit. 相似文献
70.
Afzal Ahmad Benedicta D’Souza Charu Yadav Ashish Agarwal Anand Kumar M. Nandini Vivian D’Souza A. M. Poornima Nutan Kamath 《Indian journal of clinical biochemistry : IJCB》2016,31(4):480-482
Alstrom’s syndrome (AS) is a rare autosomal recessive ciliopathic condition affecting 1:10,00,000 children. It’s a single gene disorder of ALMS1 on chromosome 2 with multisystem involvement with cone-rod retinal dystrophy causing juvenile blindness, obesity, insulin resistance, type 2 Diabetes mellitus, hypogonadism and sensorineural hearing loss. Till now only 800 patients with this disorder has been identified so far. In this report, we describe the case of a 9-year old male boy from south India. He had been initially referred for polyphagia, polyuria, polydipsia, generalized weakness from 1 weeks. On examination he was demonstrated features suggestive of AS, including blindness, obesity, type 2 diabetes, altered lipid profile, hypogonadism, acanthosis nigricans, seborrheic dermatitis, right ear discharge and episodes of respiratory tract infections. So, diagnosis of AS is critical as it can easily be overlooked because of the many features associated with metabolic syndrome starting at age 7, a relatively early age. 相似文献