oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 205 )

2018 ( 339 )

2017 ( 312 )

2016 ( 417 )

Custom range...

Search Results: 1 - 10 of 183213 matches for " Mark E Waugh "
All listed articles are free for downloading (OA Articles)
Page 1 /183213
Display every page Item
Expressed sequence tags from the oomycete fish pathogen Saprolegnia parasitica reveal putative virulence factors
Trudy Torto-Alalibo, Miaoying Tian, Kamal Gajendran, Mark E Waugh, Pieter van West, Sophien Kamoun
BMC Microbiology , 2005, DOI: 10.1186/1471-2180-5-46
Abstract: We generated 1510 expressed sequence tags (ESTs) from a mycelial cDNA library of S. parasitica. A total of 1279 consensus sequences corresponding to 525944 base pairs were assembled. About half of the unigenes showed similarities to known protein sequences or motifs. The S. parasitica sequences tended to be relatively divergent from Phytophthora sequences. Based on the sequence alignments of 18 conserved proteins, the average amino acid identity between S. parasitica and three Phytophthora species was 77% compared to 93% within Phytophthora. Several S. parasitica cDNAs, such as those with similarity to fungal type I cellulose binding domain proteins, PAN/Apple module proteins, glycosyl hydrolases, proteases, as well as serine and cysteine protease inhibitors, were predicted to encode secreted proteins that could function in virulence. Some of these cDNAs were more similar to fungal proteins than to other eukaryotic proteins confirming that oomycetes and fungi share some virulence components despite their evolutionary distanceWe provide a first glimpse into the gene content of S. parasitica, a reemerging oomycete fish pathogen. These resources will greatly accelerate research on this important pathogen. The data is available online through the Oomycete Genomics Database [1].Water molds such as Saprolegnia and Aphanomyces species are responsible for devastating infections on fish in aquaculture, fish farms and hobby fish tanks [2,3]. Members of the genus Saprolegnia cause saprolegniosis, a disease that is characterized by visible white or grey patches of filamentous mycelium on the body or fins of freshwater fish [2]. The oomycete Saprolegnia parasitica is economically one of the most important fish pathogens, especially on salmon and trout species. It causes tens of million dollar losses to aquaculture business worldwide, notably in Scotland, Scandinavia, Chile, Japan, Canada, and the USA [4,5]. S. parasitica infections are second only to bacterial diseases. In Japan
Technical Note: A low cost Unmanned Aerial Vehicle for ship based science missions
E. Waugh,M. Mowlem
Ocean Science Discussions (OSD) , 2010, DOI: 10.5194/osd-7-757-2010
Abstract: A low-cost Unmanned Aerial Vehicle is compared with those already available and the motivation for its development is established. It is targeted at ship-based science missions and potential applications are described including a specific science case to measure white capping in the deep ocean. The current vehicle includes a range of more than 1000 km, carrying a payload of 2 kg and it can be launched and recovered from a coastal research vessel. The vehicle has flown successfully in Force 4 gusting Force 6–7 wind conditions, an important requirement for operation at sea. Data analysis is performed on images captured by the vehicle to provide a measurement of wave period and white capping fraction. The next stage of the project is to develop a suitable payload and perform a demonstration science mission.
Technical Note: A low cost unmanned aerial vehicle for ship based science missions
E. Waugh,M. Mowlem
Ocean Science (OS) & Discussions (OSD) , 2010, DOI: 10.5194/os-6-615-2010
Abstract: A low-cost Unmanned Aerial Vehicle is compared with those already available and the motivation for its development is established. It is targeted at ship-based science missions and potential applications are described including a specific science case to measure white capping in the deep ocean. The current vehicle includes a range of more than 1000 Km, carrying a payload of 2 Kg and it can be launched and recovered from a coastal research vessel. The vehicle has flown successfully in Force 4 gusting Force 6–7 wind conditions, an important requirement for operation at sea. Data analysis is performed on images captured by the vehicle to provide a measurement of wave period and white capping fraction. The next stage of the project is to develop a suitable payload and perform a demonstration science mission.
Comparison of full-text versus metadata searching in an institutional repository: Case study of the UNT Scholarly Works
Laura Waugh,Hannah Tarver,Mark Phillips,Daniel Alemneh
Computer Science , 2015,
Abstract: Authors in the library science field disagree about the importance of using costly resources to create local metadata records, particularly for scholarly materials that have full-text search alternatives. At the University of North Texas (UNT) Libraries, we decided to test this concept by answering the question: What percentage of search terms retrieved results based on full-text versus metadata values for items in the UNT Scholarly Works institutional repository? The analysis matched search query logs to indexes of the metadata records and full text of the items in the collection. Results show the distribution of item discoveries that were based on metadata exclusively, on full text exclusively, and on the combination of both. This paper describes in detail the methods and findings of this study.
Sensitivity of stratospheric inorganic chlorine to differences in transport
D. W. Waugh, S. E. Strahan,P. A. Newman
Atmospheric Chemistry and Physics (ACP) & Discussions (ACPD) , 2007,
Abstract: Correctly modeling stratospheric inorganic chlorine (Cly) is crucial for modeling the past and future evolution of stratospheric ozone. However, comparisons of the chemistry climate models used in the latest international assessment of stratospheric ozone depletion have shown large differences in the modeled Cly, with these differences explaining many of the differences in the simulated evolution of ozone over the next century. Here in, we examine the role of transport in determining the simulated Cly using three simulations from the same off-line chemical transport model that have the same lower tropospheric boundary conditions and the same chemical solver, but differing resolution and/or meteorological fields. These simulations show that transport plays a key role in determining the Cly distribution, and that Cly depends on both the time scales and pathways of transport. The time air spends in the stratosphere (e.g., the mean age) is an important transport factor determining stratospheric Cly, but the relationship between mean age and Cly is not simple. Lower stratospheric Cly depends on the fraction of air that has been in the upper stratosphere, and transport differences between models having the same mean age can result in differences in the fraction of organic chlorine converted into Cly. Differences in transport pathways result in differences in vertical profiles of CFCs, and comparisons of observed and modeled CFC profiles provide a stringent test of transport pathways in models.
Transport and modeling of stratospheric inorganic chlorine
D. W. Waugh,S. E. Strahan,P. A. Newman
Atmospheric Chemistry and Physics Discussions , 2007,
Abstract: Correctly modeling stratospheric inorganic chlorine (Cly) is crucial for modeling the past and future evolution of stratospheric ozone. However, comparisons of the chemistry climate models used in the latest international assessment of stratospheric ozone depletion have shown large differences in the modeled Cly, with these differences explaining differences in the simulated evolution of ozone over the next century. Here in, we examine the role of transport in determining the simulated Cly using three simulations from the same off-line chemical transport model that have the same lower tropospheric boundary conditions and the same chemical solver, but differing resolution and/or meteorological fields. These simulations show that transport plays a key role in determining the Cly distribution, and that Cly depends on both the time scales and pathways of transport. The time air spends in the stratosphere (e.g., the mean age) is an important transport factor determining stratospheric Cly, but the relationship between mean age and Cly is not simple. Lower stratospheric Cly depends on the fraction of air that has been in the upper stratosphere, and transport differences between models having the same mean age can result in differences in the fraction of organic chlorine converted into Cly. Differences in transport pathways result in differences in vertical profiles of CFCs, and comparisons of observed and modeled CFC profiles provides a stringent test of transport pathways in models.
Understanding the individual with Alzheimer’s disease: Can socioemotional selectivity theory guide us?  [PDF]
Ruth E. Mark
Advances in Alzheimer's Disease (AAD) , 2012, DOI: 10.4236/aad.2012.13010
Abstract: Individuals often get lost behind the diagnosis of Alzheimer’s disease (AD) while widespread differences between these patients are morecommon than similarities. Socioemotional Selectivity Theory (SST) suggests that as we age our goals change from future-oriented (acquiringnew information) to present-oriented (enhancing the emotional, especially positive, meaning of encounters). The goal of the current article is to examine whether the principles of SST might also apply for people with AD. Some aspects of SST are found especially in the early stages of AD when awareness is often intact and cognitive impairment is relatively limited. This review has clinical significance for the treatment of AD because it focuses on what is important to the individual rather than treating patients as a homogenous group. It also highlights the importance of social networks and emphasizes the role of the proxy in AD care. Lastly, it suggests that if those with AD (like the healthy elderly) have a positivity bias then positive emotional stimuli/wording/instructions could usefully be employed in their daily treatment. I suggest that SST may be a useful starting point when attempting to address what matters to individuals with AD and conclude by providing a few suggestions for future studies.
What Is “African Bioethics” as Used by Sub-Saharan African Authors: An Argumentative Literature Review of Articles on African Bioethics  [PDF]
Albert Mark E. Coleman
Open Journal of Philosophy (OJPP) , 2017, DOI: 10.4236/ojpp.2017.71003
Abstract:
The term “African bioethics” is more often used by some Sub-Saharan African (SSA) authors to denote an African framework of resolving pertinent moral dilemmas arising in the interface of human persons with biomedical sciences, as juxtaposed against what is deemed “Western bioethics paradigms/theories, considered otherwise as a form of “moral/ethical imperialism”; and considered foreign to SSA tradition(s). This article is a literature review of articles on African bioethics to clarify what actually is meant epistemologically by African bioethics vis a vis, Western bioethics, as well as ascertain whether African bioethics as used by SSA authors is wishful thinking, yet to be realised in actuality.
Literature review for the update on the guidelines for follow-up of patients treated for breast cancer (stages 0-III)
Enrique Waugh
Medwave , 2010,
Abstract:
Formality in Chat Reference: Perceptions of 17- to 25-Year-Old University Students
Jennifer Waugh
Evidence Based Library and Information Practice , 2013,
Abstract: Objective – To examine the ways in which the formality of language used by librarians affects 17- to 25-year-old university students’ perceptions of synchronous virtual reference interactions(chat reference), in particular, perceptions of answer accuracy, interpersonal connection, competency, professionalism, and overall satisfaction. Methods – This qualitative study used semi-structured interviews to examine the perceptions of participants. Participants reviewed and responded to two virtual reference transcripts, portraying a librarian and student asking a simple question. One transcript portrayed a librarian using traditional, formal language while the other portrayed a librarian using informal language. Five17- to 25-year-old university students were interviewed. Data were analyzed using a phenomenological, qualitative approach to discover common themes. Results – Analysis suggests that participants perceived the formal librarian as being “robotic” and impersonal while the informal librarian was thought to be more invested in the referenceinteraction. Several participants viewed the formal librarian as more competent and trustworthy and questioned the effort put forth by the informal librarian, who was perceived as young and inexperienced. Participants’ perceptions of professionalism were based on expectations of social distance and formality. Satisfaction was based on content and relational factors. Several participants preferred the formal interaction based on perceptions of competency, while others preferred the informal librarian due to perceived interpersonal connection. Conclusion – Formality plays a key role in altering the perceptions of 17- to 25-year-olds when viewing virtual reference interaction transcripts. Both language styles had advantages and disadvantages, suggesting that librarians should become cognizant of manipulating their language to encourage user satisfaction.
Page 1 /183213
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.