oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 4 )

2018 ( 7 )

2017 ( 3 )

2016 ( 10 )

Custom range...

Search Results: 1 - 10 of 5683 matches for " Vera Letter "
All listed articles are free for downloading (OA Articles)
Page 1 /5683
Display every page Item
The Influence of Feeding Regimen on the Composition of the Fat Pads in the Bovine Digital Cushion  [PDF]
Martha R?ber, Vera Letter, André Chassot, Hans Geyer, Martin R. L. Scheeder
Agricultural Sciences (AS) , 2015, DOI: 10.4236/as.2015.69085
Abstract: The effect of an intensive/extensive feeding regimen on lipid content and fatty acid composition of the bovine digital cushion was investigated in 32 beef cattle of both genders, divided in 2 groups (16 per intensive/extensive feeding). The beef cattle were calves of different suckler cow husbandries. After the separation from their mothers at the age of 10 months, they were differently fed for 5 months. The animals were slaughtered at the age of 15 months with a mean body weight of 450 kg. The macroscopic claw examination of all beef cattle was made at two defined claws at the beginning of the trial and after slaughter. For applicatory reasons, the fat pads of the claws could only be prepared after slaughter. Samples from fat pads at defined locations of the digital cushion were analysed for lipid content and fatty acid composition determination. Additionally, samples from the digital cushions and few samples of subcutaneous tissue of 9 dairy cows served as comparison. These slaughterhouse cows were mainly fed with hay and grass; further data however were not available. The digital fat pads and the subcutaneous fat of both groups showed obvious differences in the fat content and the fatty acid composition. The fat pads of the intensive fed animals contained fewer lipids and more omega-6-fatty acids. The extensive fed animals had distinctly more omega-3-fatty acids. In the subcutaneous fat of the intensive fed animals, more omega-6-fatty could be found and more omega-3-fatty acids in the extensive fed animals. These results indicate that the feeding can influence the lipid content and the fatty acid composition. The macroscopic hoof horn quality grade of the intensive fed group was better than the extensive fed group. The digital pads of the dairy cows contained more lipids, more monounsaturated fatty acids and less omega-6-fatty acids.
The Arabic translation of the Declaration of Academic Freedom
Open Letter by the Editor-in-Chief
Progress in Physics , 2011,
Abstract:
Declara o de Liberdade Acadêmica: Direitos Humanos Científicos (the Portuguese translation of the Declaration of Academic Freedom)
Open Letter by the Editor-in-Chief
Progress in Physics , 2011,
Abstract:
Communication Impairments in Parkinson's Disease
Bruce Murdoch,Tara Whitehill,Miet de Letter,Harrison Jones
Parkinson's Disease , 2011, DOI: 10.4061/2011/234657
Abstract:
Communication Impairments in Parkinson's Disease
Bruce Murdoch,Tara Whitehill,Miet de Letter,Harrison Jones
Parkinson's Disease , 2011, DOI: 10.4061/2011/234657
Abstract:
Second Language Acquisition: Reconciling Theories  [PDF]
Vera Menezes
Open Journal of Applied Sciences (OJAppS) , 2013, DOI: 10.4236/ojapps.2013.37050
Abstract:

This article argues that previous attempts to explain SLA should not be disregarded. Instead, when they are put together, they provide a broader and deeper view of the acquisition process. There is evidence to support the claim that second language acquisition (SLA) is a complex adaptive system due to its inherent ability to adapt to different conditions present in both internal and external environments. Based on this understanding, widely discussed second language theories, including behaviorism, will be treated as explanations of parts of a whole, since each captures a different aspect of SLA. In order to justify this assumption, excerpts from some English language learning histories are provided to exemplify how learners describe their learning processes. The final claim is that SLA should be seen as a chaotic/complex system.

Improved Retrieval of Sea Ice Thickness and Density from Laser Altimeter  [PDF]
Vera Djepa
Atmospheric and Climate Sciences (ACS) , 2014, DOI: 10.4236/acs.2014.45080
Abstract: The sensitivity of weather and climate system to sea ice thickness (SIT) in the Arctic is recognised from various studies. Decrease of SIT will affect atmospheric circulation, temperature, precipitation and wind speed in the Arctic and remotely. Ice thermodynamics and dynamic properties depend strongly on ice and snow thickness. The heat transfer through ice critically depends on ice thickness. Long term accurate SIT records with corresponding uncertainties are required for improved seasonal weather forecast and estimate of the sea ice mass balance. Satellite radar and Laser Altimeter (LA) provide long term records of sea ice freeboard. Assuming isostatic equilibrium, SIT is retrieved from the freeboard, extracted from radar altimeter (RA) or LA, where the snow depth, density, ice and water density are input variables in the equation for hydrostatic equilibrium to derive SIT from LA or RA. Different input variables (snow depth, density, ice and water density) with unknown accuracy have been applied from various authors to retrieve SIT and Sea Ice Draft (SID) from RA or LA, leading to not comparative results. Sea ice density dependence on ice type, thermodynamic properties and freeboard is confirmed with different studies. Sensitivity analyses confirm the great impact of sea ice density, snow depth and density on accuracy of the retrieved SIT and the importance of inserting variable ice density (VID) in the equation for hydrostatic equilibrium for more accurate SIT retrieval, weather and climate forecast. The impact of sea ice density and snow depth and density on retrieved SIT from the freeboard derived from LA and RA have been analyzed in this study using the equation for hydrostatic equilibrium, statistical and sensitivity analyses. An algorithm is developed to convert the freeboard, derived from LA in SIT, inserting VID in the equation for hydrostatic equilibrium. The algorithm is validated with field, laboratory studies and collocated SIT retrieved from RA on board Envisat. The accuracy of the developed algorithm is analyzed, using statistical and uncertainty analyses. It is found that the uncertainty of the retrieved SIT from LA is decreased 7.6 times (from rhi = 59 cm for fixed ice density) if variable ice density is inserted in the equation for hydrostatic equilibrium. The SIT, which has been retrieved from the freeboard derived from LA is validated with collocated SIT derived from RA2 on Envisat, using variable ice density. The bias of the mean SIT derived from LA and RA has been reduced from -1.1 m to about one millimeter when VID is
Music, Eurocentrism and Identity: The Myth of the Discovery of America in Chilean Music History  [PDF]
Alejandro Vera
Advances in Historical Studies (AHS) , 2014, DOI: 10.4236/ahs.2014.35024
Abstract: During the past century, Edmundo O’Gorman, Tzvetan Todorov, Enrique Dussel and other scholars pointed out the Eurocentric perspective implied in traditional narratives about the discovery of America, most of which intended to confirm Europe as the center of world history and culture. At the same time, Claude Lévi-Strauss, Hayden White and others argued for the mythical character of history. According to them, even though historians attempted to assemble documentary evidence objectively, they constructed their narratives incorporating such evidence in preexisting stories, characters and categories with a mythical origin. This paper uses these viewpoints to analyze and criticize the way in which Chilean music history has been constructed, particularly during the republican era. The main hypothesis is that traditional discourses about that history have constantly recycled narratives on the discovery of America, which thus operates as a kind of founding myth for historical and musicological interpretations, especially when dealing with turning points such as the change of dynasty (1700), the beginning of independence (c. 1810) and the centenary of the republic (1910). A corollary would be that documentary evidence about music has been frequently hidden or distorted precisely in order to fit such a myth. That is why the present paper examines both bibliography and original documents found in different archives.
Assessment of Prosodic Communicative Efficiency in Parkinson's Disease As Judged by Professional Listeners
Heidi Martens,Gwen Van Nuffelen,Patrick Cras,Barbara Pickut,Miet De Letter,Marc De Bodt
Parkinson's Disease , 2011, DOI: 10.4061/2011/129310
Abstract: This study examines the impact of Parkinson's disease (PD) on communicative efficiency conveyed through prosody. A new assessment method for evaluating productive prosodic skills in Dutch speaking dysarthric patients was devised and tested on 36 individuals (18 controls, 18 PD patients). Three professional listeners judged the intended meanings in four communicative functions of Dutch prosody: Boundary Marking, Focus, Sentence Typing, and Emotional Prosody. Each function was tested through reading and imitation. Interrater agreement was calculated. Results indicated that healthy speakers, compared to PD patients, performed significantly better on imitation of Boundary Marking, Focus, and Sentence Typing. PD patients with a moderate or severe dysarthria performed significantly worse on imitation of Focus than on reading of Focus. No significant differences were found for Emotional Prosody. Judges agreed well on all tasks except Emotional Prosody. Future research will focus on elaborating the assessment and on developing a therapy programme paralleling the assessment. 1. Introduction Dysarthria is a frequent complication of Parkinson’s disease (PD). PD has been reported to affect speech in at least 60% of PD patients, with increased prevalence as the disease progresses [1]. Parkinsonian speech is mainly characterised by the impairment of voice, articulation, and prosody [1, 2]. This multidimensional impairment can have a negative impact on speech intelligibility and hence on communication and on quality of life. Previous research points out that, next to articulation, prosody is the second most important factor contributing to speech intelligibility in dysarthric patients in general [3]. Prosody commonly refers to the suprasegmental speech signal aspects used to convey meaning through variation in fundamental frequency (F0), intensity, and duration [4–7]. In dysarthric PD patients specifically, six out of ten most deviant speech dimensions are associated with prosody: monopitch, reduced stress, monoloudness, inappropriate silences, short rushes of speech, and variable rate [1]. Therefore, assessing prosodic skills is important in the diagnosis and remediation of speech disorders in PD. Nevertheless, scientific interest in the phenomenon of prosody within the field of speech-language pathology is rather scarce and slowly evolving, when it comes to characterisation, assessment, and intervention of atypical prosody [8–10]. During the last decade, the majority of publications focussing on prosody in PD evaluated prosody in terms of its formal dimensions, such
The Effect of a Mother’s Level of Attachment and Her Emotional Intelligence on a Child’s Health during Its First Year of Life  [PDF]
Elena Nikolaeva, Vera Merenkova
Psychology (PSYCH) , 2013, DOI: 10.4236/psych.2013.45068
Abstract:

The aim of this study was to investigate the possibility of predicting the health of a child during its first year by using the mother’s emotional intelligence and the level of her attachment to the child. Serving as test subjects were 50 mother-child pairs during the first year of life and 50 mother-child pairs during the second year of life (altogether 200 individuals). It was shown that the likelihood of dismissing a diagnosis given to a child at a maternity clinic depends on the level of the mother’s acceptance of the child and not on her emotional intelligence and anxiety.

Page 1 /5683
Display every page Item


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