6,295 research outputs found
The IR has Two Faces: Positioning Institutional Repositories for Success
This article will describe ongoing efforts at University of Nevada, Las Vegas (UNLV) Libraries to evolve the role of the institutional repository (IR) and to effectively position it within the context of the Libraries’ collections, research support, and scholarly communication services. A major component of this process is re-examining the fundamental aims of the IR and aligning it to the Libraries and the campus strategic goals. The authors situate UNLV Libraries’ experience within the context of the current literature to provide background and reasoning for our decision to pursue two, at times conflicting, aims for the IR: one for scholarly communication and another for research administration
Determinant Factors of E-commerce Adoption by SMEs in Developing Country: Evidence from Indonesia
The aim of this study is to investigate those factors that influence SMEs in developing countries in adopting e-commerce. This study is motivated by the fact that the adoption of e-commerce by SMEs, especially in developing countries, is still very far behind the adoption by large companies. Yet to be able to survive in the new economic era, which is the information era; businesses, including SMEs, are forced to adopt e-commerce. Non-adopters will be left behind by the adopters. In addition, studies regarding e-commerce adoption by SMEs are rarely found. Therefore, the results of this study provide a timely understanding of e-commerce adoption by SMEs in developing countries.
The model developed in this study is based on the TOE framework. Eleven variables are proposed as the factors that influence SMEs in adopting of e-commerce. These are organized into four groups, namely: technological factors, organizational factors, environmental factors and individual factors. Based on a survey of 292 Indonesian SMEs, it was found that perceived benefits, technology readiness, owners’ innovativeness, owners’ IT ability and owners’ IT experience are the determinant factors that influence Indonesian SMEs in their adopting e-commerce
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Idiopathic AIDS enteropathy and treatment of gastrointestinal opportunistic pathogens.
Diarrhea in patients with acquired immune deficiency syndrome (AIDS) has proven to be both a diagnostic and treatment challenge since the discovery of the human immunodeficiency virus (HIV) virus more than 30 years ago. Among the main etiologies of diarrhea in this group of patients are infectious agents that span the array of viruses, bacteria, protozoa, parasites, and fungal organisms. In many instances, highly active antiretroviral therapy remains the cornerstone of therapy for both AIDS and AIDS-related diarrhea, but other targeted therapies have been developed as new pathogens are identified; however, some infections remain treatment challenges. Once identifiable infections as well as other causes of diarrhea are investigated and excluded, a unique entity known as AIDS enteropathy can be diagnosed. Known as an idiopathic, pathogen-negative diarrhea, this disease has been investigated extensively. Atypical viral pathogens, including HIV itself, as well as inflammatory and immunologic responses are potential leading causes of it. Although AIDS enteropathy can pose a diagnostic challenge so too does the treatment of it. Highly active antiretroviral therapy, nutritional supplementation, electrolyte replacements, targeted therapy for infection if indicated, and medications for symptom control all are key elements in the treatment regimen. Importantly, a multidisciplinary approach among the gastroenterologist, infectious disease physician, HIV specialists, oncology, and surgery is necessary for many patients
Freezing and pressure-driven flow of solid helium in Vycor
The recent torsional oscillator results of Kim and Chan suggest a supersolid
phase transition in solid He-4 confined in Vycor. We have used a capacitive
technique to directly monitor density changes for helium confined in Vycor at
low temperature and have used a piezoelectrically driven diaphragm to study the
pressure-induced flow of solid helium into the Vycor pores. Our measurements
showed no indication of a mass redistribution in the Vycor that could mimic
supersolid decoupling and put an upper limit of about 0.003 um/s on any
pressure-induced supersolid flow in the pores of Vycor.Comment: 5 pages, 4 figure
Intrinsic and dislocation induced elastic behavior of solid helium
Recent experiments showed that the shear modulus of solid 4He stiffens in the
same temperature range (below 200 mK) where mass decoupling and supersolidity
have been inferred from torsional oscillator measurements. The two phenomena
are clearly related and crystal defects, particularly dislocations, appear to
be involved in both. We have studied the effects of annealing and the effects
of applying large stresses on the elastic properties of solid 4He, using both
acoustic resonances and direct low-frequency and low-amplitude measurements of
the shear modulus. Both annealing and stressing affect the shear modulus, as
expected if dislocations are responsible. However, it is the high temperature
modulus which is affected; the low temperature behavior is unchanged and
appears to reflect the intrinsic modulus of solid helium. We interpret this
behavior in terms of dislocations which are pinned by isotopic 3He impurities
at low temperatures and so have no effect on the shear modulus. At higher
temperatures they become mobile and weaken the solid. Stressing the crystal at
low temperatures appears to introduce new defects or additional pinning sites
for the dislocation network but these effects can be reversed by heating the
crystal above 500 mK. This is in contrast to dislocations produced during
crystal growth, which are only annealed at temperatures close to melting
Prayer and subjective well-being : the application of a cognitive-behavioural framework
The aim of the present study was to examine the relationship between a model of prayer and a measure of subjective well-being within the context of a cognitive-behavioural framework. A community sample of 173 (77 males and 96 females) British adults completed measures of prayer activity and the General Health Questionnaire-28. The present findings suggest that meditative prayer, frequency of prayer, and prayer experience account for unique variance (among other measures of prayer) in a general measure of subjective well-being. The results demonstrate the potential usefulness of a cognitive-behavioural framework to help better understand the relationship between prayer and subjective well-being
ATLAS: A flexible and extensible architecture for linguistic annotation
We describe a formal model for annotating linguistic artifacts, from which we
derive an application programming interface (API) to a suite of tools for
manipulating these annotations. The abstract logical model provides for a range
of storage formats and promotes the reuse of tools that interact through this
API. We focus first on ``Annotation Graphs,'' a graph model for annotations on
linear signals (such as text and speech) indexed by intervals, for which
efficient database storage and querying techniques are applicable. We note how
a wide range of existing annotated corpora can be mapped to this annotation
graph model. This model is then generalized to encompass a wider variety of
linguistic ``signals,'' including both naturally occuring phenomena (as
recorded in images, video, multi-modal interactions, etc.), as well as the
derived resources that are increasingly important to the engineering of natural
language processing systems (such as word lists, dictionaries, aligned
bilingual corpora, etc.). We conclude with a review of the current efforts
towards implementing key pieces of this architecture.Comment: 8 pages, 9 figure
Non-linear Elastic Response in Solid Helium: critical velocity or strain
Torsional oscillator experiments show evidence of mass decoupling in solid
4He. This decoupling is amplitude dependent, suggesting a critical velocity for
supersolidity. We observe similar behavior in the elastic shear modulus. By
measuring the shear modulus over a wide frequency range, we can distinguish
between an amplitude dependence which depends on velocity and one which depends
on some other parameter like displacement. In contrast to the torsional
oscillator behavior, the modulus depends on the magnitude of stress, not
velocity. We interpret our results in terms of the motion of dislocations which
are weakly pinned by 3He impurities but which break away when large stresses
are applied
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