157 research outputs found
Trade finance for sustainable development in Asia and the Pacific
This discussion paper 'Trade Finance for Sustainable Development in Asia and the Pacific' was prepared for ESCAP by Sailendra Narain, Chairman, Centre for SME Growth and Development Finance, India.
The author would like to express his gratitude and sincere thanks to Mia Mikic, Marc Proksch, Yann L Duval, Masato Abe and Mona Narain for reviewing and editing the paper and providing comments with valuable suggestions
Carta de S. K. Bose a l 'editor de la "Revista Matemática Hispano-Americana"
Carta de S.K. Bose (Lucknow, Índia), dirigida a l 'editor de la "Revista Matemática Hispano-Americana", on diu que li envia a part un article revisat de Satya Narain Srivastava
Glycomimetic functionalized collagen hydrogels for peripheral nerve repair
Despite the innate regenerative potential of the peripheral nervous system, functional recovery is often limited. The goal of this dissertation was to develop a clinically relevant biomaterial strategy to (1) encourage the regrowth of axons and (2) direct them down their appropriate motor tracts. To this end, we use peptide mimics of two glycans, polysialic acid (PSA) and an epitope first discovered on human natural killer cells (HNK-1), to functionalize type I collagen hydrogels. Previous studies have shown that these molecules, in their glycan and glycomimetic form, are associated with acceleration of neurite outgrowth, glial cell proliferation, and motoneuron targeting. In vitro, we demonstrated the retained functionality of the peptide glycomimetics after conjugation to a type I collagen backbone. While HNK-functionalized collagen increased motor neurite outgrowth, PSA-functionalized collagen encouraged motor and sensory neurite outgrowth and Schwann cell extension and proliferation. When we introduce these glycomimetic-functionalized collagen hydrogels into a critical gap femoral nerve model, we show that both PSA and HNK-functionalized hydrogels yielded a significant increase in functional recovery when compared to saline, native and scramble-coupled hydrogels. However, there was an interesting divergence in the morphological results: PSA-functionalized hydrogels increased axon count and HNK-functionalized hydrogels increased motoneuron targeting and myelination. We believed that these differences may be attributed to distinct mechanisms by which the glycomimetics impart their benefit. Interestingly, however, we found no synergistic gain in recovery with the use of our composite hydrogels which we speculated may be due to an inadequate dose of the individual glycomimetic. To address this possibility, we show that increasing the amount of functionalized peptide functionalized in our composite hydrogels led to increases in axon count and area of regeneration, but does not affect the degree of functional recovery. Finally, in order to assess potential mechanisms by which our glycomimetics impart benefit, we describe a novel platform for studying neural cell/biomaterial interaction through the use of two types of motoneuron cultures, dissociated spinal cord neurons and organotypic spinal cord slices. We show promising evidence that this strategy can be used to probe signaling pathways potentially involved in the action of these bioactives.Ph. D.Includes bibliographical referencesIncludes vitaby Shirley Narain Masan
Institutions, technology and water control; water users associations and irrigation management reform in two large-scale systems in India
Few studies of resource management have paid as much attention or intelligently surveyed the operational aspects of Water User Associations (WUAs) as Institutions, Technology and Water Control. The implementation of WUAs policies, argues this pioneering study, is shaped by the aspirations of its users and participants. Such an insight makes for a trenchant study of the implementation process of the WUAs. Relying on ethnographic research methods, Narain takes an inter-disciplinary approach to examine how institutions are shaped by technology. Calling attention to the internal organizational dynamics of the WUAs, the author argues that the emergence of institutions for collective action is shaped by technology and social relationships. The book makes a case for mainstream discussions of technology, the design of canal irrigation, and open discussions of irrigation management reform. The warabandi system of irrigation prevalent in northwestern India has a different potential for reform than does the shejpali system prevalent in western India. Vishal Narain’s account of this highly topical subject should be of interest to researcher’s and academics, NGOs, multilateral organisations and donors interested in irrigation management reform, collective action and community-based management
We are as much a place as a people: rewilding as an ecofeminist decolonizing process in global literatures
In this study of literature spanning from the late 1800’s to the present day and across the world, I argue that a vital act of decolonization for communities of color is to rewild themselves, an act that aims to re-discover their sense of self in the natural world and in history. In pointing out the historical and material consequences of Eurocentric models of knowledge from an ecofeminist, post-colonial, and anti-white supremacist model, my thesis aims to make important historical connections between seemingly separate oppressive regimes through my analysis of Anonymous’ The Woman of Colour (1808), Aimé Césaire’s A Tempest (1969), N. Scott Momaday’s The Way to Rainy Mountain (1969), and Sandra Cisneros’ “Woman Hollering Creek” (1994). This research joins the fields of ecocriticism, women of color feminisms, spatial theories, and decolonization studies. The works of Anonymous, Césaire, Momaday, and Cisneros elicit a social reassessment of the environment, feminisms, and decolonization, thus revealing how place and people are persistent preoccupations of decolonization
On the mean values of integral functions and their derivatives represented by Dirichlet series
Developing listening and reading skills of grade seven students at Mount Pearl Central High School
The purpose of this study was to investigate the effect of a planned, regularly scheduled, taped listening program upon the listening and reading achievement of seventh grade students. -- The subjects included in the study were 67 seventh grade pupils enrolled in two classrooms. The experimental group was made up of 34 students; 33 students were in the control group. Each of two teachers taught one experimental group and one control group. Both the experimental group and the control group were exposed to the same language arts curriculum, with the exception that control group students were engaged in a free reading period while the experimental group participated in the program of listening skill development. -- A portion of the LISTEN AND THINK series was used as the listening program. It consisted of thirty taped lessons which were administered for 40 minutes each school day during a six week period. -- The Durrell Listening-Reading Series, Form DE, was used as a pretest; Form EF was used as a posttest. Pretest scores were used to equate the experimental and control groups. Means scores were used to compare posttest performance of the experimental and control groups. -- Analyses of the data revealed the following: -- There was a significant difference in the listening achievement of students who participated in the listening program. Test data for control group students reflected no appreciable gain. -- There was a significant difference in the reading achievement of students who participated in a planned listening program. Test data for control group students reflected no appreciable gain. -- The following recommendations are suggested: -- 1) additional research to explore the nature and development of listening ability or abilities and to apply these findings to the language arts curriculum is needed; -- 2) further experimentation with teaching methods and materials incorporating these materials in classroom listening situations should be conducted; -- 3) the problem of interrelationships among listening abilities and speech, reading, and other verbal skills warrants continuing research; -- 4) there should be conducted a listening skills study incorporating listening materials that are constructed to parallel whatever basal reading or other language arts materials are being used in the particular school.Bibliography: leaves 39-44
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