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Search Results: 1 - 10 of 15413 matches for " Piericidin E "
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Piericidins, Novel Quorum-Sensing Inhibitors against Chromobacterium violaceum CV026, from Streptomyces sp. TOHO-Y209 and TOHO-O348  [PDF]
Kazuhiro Ooka, Atsushi Fukumoto, Tomoe Yamanaka, Kanako Shimada, Ryo Ishihara, Yojiro Anzai, Fumio Kato
Open Journal of Medicinal Chemistry (OJMC) , 2013, DOI: 10.4236/ojmc.2013.34012
Abstract: Piericidin A1, 3’-rhamnopiericidin A1, and a novel compound piericidin E, a new quorum-sensing (QS) inhibitor
against Chromobacterium violaceum CV026, were isolated from the culture broth of Streptomyces sp. QS is well
known as a microbial signaling system and controls certain types of gene expression resulting in bioluminescence,
biofilm formation, swarming motility, antibiotic biosynthesis, and virulence factor production. C. violaceum CV026 is
commonly used to determine qualitative and quantitative QS activity. The structures of piericidin derivatives were characterized,
and their QS activities were determined.
WIND POWER GENERATION IN THE CONTEXT OF ENVIRONMENTAL SAFETY Oценка влияния ветроэнергетики на окружающую среду Oц нка впливу в троенергетики на навколишн середовище
Oleksandr I. Zaporozhets,Yaroslav I. Movchan,Angela E. Guy,Hanna V. Коlоmiiets
Proceedings of National Aviation University , 2010,
Abstract: The review of environmental aspects of development of industrial windpowerstations in Ukraine on the example of project of concrete object is offered. For the account of requirements EIA of procedures, are considered in prospects of development of wind energy generation. Рассмотрены экологические аспекты развития индустриальной ветроэнергетики на Украине на примере проекта конкретного объекта. Предложены подходы к оценке влияния ветроэнергетики на окружающую среду. Приведены перспективы развития ветроэнергетики. Розглянуто еколог чн аспекти розвитку ндустр ально в троенергетики в Укра н на приклад проекту конкретного об’ кта. Запропоновано п дходи до оц нки впливу в троенергетики на навколишн середовище. Наведено перспективи розвитку в троенергетики.
Aproximación de la ética de Emmanuel Lévinas al Trabajo Social An Approach of Emmanuel Lévinas′ Ethics Regarding Social Work
Francisco Idareta-Goldaracena
Portularia : Revista de Trabajo Social , 2012, DOI: 10.5218/prts.2012.0028
Abstract: El objetivo de este artículo consiste en profundizar en la ética de Emmanuel Lévinas y aproximarla al Trabajo Social. Para ello, hemos dividido el artículo en tres secciones. En la primera parte expondremos brevemente algunas pinceladas sobre las características de la obra de Lévinas y las nociones principales de la misma, a partir de las cuales plantearemos su propuesta ética. En la segunda parte nos referiremos a los orígenes del Trabajo Social y a las Organizaciones Sociales de Caridad y los Asentamientos en su surgimiento como disciplina teórica. Finalmente, plantearemos la aproximación de la ética de Lévinas al Trabajo Social y la influencia de esta ética en algunas perspectivas contemporáneas. Todo ello, utilizando una metodología histórico-sistemática consistente en analizar toda la obra de Lévinas, así como algunas de las obras más importantes de la ética de la intervención social. The goal of this article is to expose further insight into Emmanuel Lévinas' ethics, and link their approach to Social Work. With this purpose in mind, we have divided the article into four sections. In the first section, we will briefly put forward some details regarding the characteristics of his work, the main notions of his work, the basis of which will serve to expose his ethical proposal. In the second part, we will explain the origins of Social Work and the Social Service Organizations and the Settlements in its rise to become a theoretical discipline in its own right. Finally, we will establish the approach of Lévinas' ethics concerning Social Work, and the influence of these ethics upon some contemporary perspectives. All will be done using a historical-systematic methodology, aiming to analyze the entirety of E. Lévinas' work, as well as some of the most significant works of ethics in the field of social intervention.
The Role of Vitamin E in Cerebral Hypoxia: An Ultrastructural Study  [PDF]
Essam Eldin A. Salama, Ali Hassan A. Ali, Abdullah M. Aldahmash, Saeed M. Abou El Makarem, Tarek A. El Ghamrawy, Gamal M. Aboulhassan, Hisham Alkhalidi, Mohammed Mubarak
Surgical Science (SS) , 2013, DOI: 10.4236/ss.2013.41018
Abstract:

Hypoxia, due to impaired cerebral blood flow, has hazardous effects on brain structure and function. To minimize as much as possible the neurological consequences from hypoxic-ischemic (HI) brain injury, neuro-protective strategies are urgently required. Vitamin E has been shown to have protective effects against cerebral ischemia, possibly due to its anti-oxidant effects. Thirty albino rats, of both sexes, were obtained from the animal house at King Khalid University Hospital, King Saud University. They were divided into three groups; each included 10 animals: Group A was considered as a control one, animals of Group B were subjected to a permanent link to the carotid arteries on both sides and animals of Group C underwent permanent link to carotid arteries on both sides and concomitantly were given Vitamin E as an anti-oxidant. Animals of Group C were injected by Vitamin E (equivalent to 15 mg/day), into the peritoneal cavity as a single dose for a week and after the prescribed period the mice were sacrificed under deep anesthesia and their brains were extracted and prepared for an electron microscopic study of brain tissue. Specimens from animals of Group B showed a large number of neurons that had been deteriorated. Mitochondria were the most affected organelles. There were a large number of dark cells which probably resulted from shrunken nerve cells and exhibited opaque nuclei. The number of affected nerve cells was much lower in brain tissues from animals of the Group C which revealed absence of dark cells. The study did not disclose any similar changes in brain tissues of the control group animals. Our results suggested that treatment with Vitamin E after hypoxia-ischemia

Development of a General-Purpose E-Voting Server  [PDF]
De Su, Yuichi Goto, Jingde Cheng
Journal of Computer and Communications (JCC) , 2014, DOI: 10.4236/jcc.2014.22017
Abstract:

Voting is a general and indispensable method, and widely used to express a choice or preference, to elect a person, or to choose an opinion by ballot in education, enterprise, medicine, and government. Until now, various E-voting schemes are proposed in the world but they are different from each other. There is no system that can provide users with E-voting services anytime and anywhere such that one can use E-voting servers without even thinking about them. Therefore, an E-voting system for general-purpose is demanded. To support any kinds of vote, we divide voting system into components, and make different assembly of those components for different kinds of voting.

Developing E-society Cognitive Platform Based on the Social Agent E-learning Goal Oriented  [PDF]
Jamal Raiyn
Advances in Internet of Things (AIT) , 2011, DOI: 10.4236/ait.2011.11001
Abstract: In this paper we introduce the e-society cognitive approach based on the social agent. The social Agent is e-learning oriented. The e-society cognitive platform may consider different fields like e-learning, e-health, e-commerce, e-medicine, and e-government. In this paper we will introduce the e-society platform. The e-society platform supports the educational and pedagogical aspects. The e-society is based on the agent technologies. The social agents offer impressive, meaningful and several features as autonomy, manage ne-gotiation, and make decision. The e-society cognitive platform consists of three main layers: social agents, beliefs, and tools for application layer. The goal of the e-society platform is to increase the perceiving of the transportation education in the school.
Vitamin E in ataxia and neurodegenerative diseases: A review  [PDF]
Fatima. Imounan, Naima. Bouslam, Jehanne. Aasfara, Kaoutar. El alaoui, Wafa. Regragui, El Hachmia. Ait Benhaddou, Ahmed. Bouhouche, Ali. Benomar, Mohamed. Yahyaoui
World Journal of Neuroscience (WJNS) , 2012, DOI: 10.4236/wjns.2012.24033
Abstract: Vitamin E is one of the most important lipid-soluble antioxidants. It is essential for the neurological function but its role in the central nervous system has not fully been elucidated. It is known that tocopherol acts in protecting cell membranes from oxidative damage and it can act as an anti-in?ammatory agent, which may also be neuroprotective, as well as regulating speci?c enzymes. There is growing evidence that oxidative stress plays a key role in the pathophysiology of several neurodegenerative disorders. These diseases are defined by the progressive loss of speci?c neuronal cell populations and are associated with protein aggregates. We reviewed some aspects related to the role of antioxidant properties of Vitamin E in preventing and/or curing neurodegenerative disorders such as the Alzheimer’s disease, Parkinson’s disease, amyotrophic lateral sclerosis, ataxia, tardive dyskinesia and Huntington’s disease.
Elements and Steps of E-Learning Benchmarking Model for Higher Education Institutions  [PDF]
Jirasak Sae-Khow, Onjaree Na-Takuatoong, Jintavee Khlaisang
Journal of Computer and Communications (JCC) , 2014, DOI: 10.4236/jcc.2014.22007
Abstract:

The purposes of this research were to 1) develop of an e-learning benchmarking model for higher education institutions; 2) analyze and synthesize e-learning indicators for e-learning benchmarking model. The research was conducted using the research and development methods. The result shows that there are eight elements of e-learning benchmarking model: 1) team/staffs 2) benchmarking’s title 3) comparative companies 4) benchmarking indicators 5) data collection method 6) analysis data and results 7) report of results and 8) action plan development. Moreover, four steps of benchmarking model will be used in this research. “Plan” is the step of setting team for benchmarking title and choosing the company to collect the benchmarking while “Do” is a field study in order to analyze and collect each indicator. The step “Check” presents the data to stakeholders and set the purposes of action plan. Finally, “Act” which is the development of action plan leads to the practice or implementation which related to auditing and evaluating.

Challenges and Factors Affecting the Implementation of E-Government in Jordan  [PDF]
Muhannad Al-Shboul, Osama Rababah, Moh’d Al-Shboul, Rawan Ghnemat, Samar Al-Saqqa
Journal of Software Engineering and Applications (JSEA) , 2014, DOI: 10.4236/jsea.2014.713098
Abstract: Electronic government (e-Government) in its simplest form can mean using information and communication technology (ICT) tools to provide services to citizens. Still with the huge benefits and synergies that e-Government grants to governments and societies, it faces many obstacles and challenges. Therefore, there are always a number of critical success factors and risks associated with e-Government. This paper highlights some of the key ones; it critically assesses key factors that influence e-Government services adoption and diffusion. Thus, the aim of this study is to examine and identify the factors that influence and affect the utilization of e-Government in the developing countries, specifically in Jordan. Furthermore, this article investigates the challenges and barriers that must be overcome in order to successfully implement e-Government in Jordan. Semi-structured interviews were conducted and used in this study to collect the data. The results of this study show that the most significant challenges and factors influencing the implementation of e-Government services in Jordan are related to budgeting and financial costs, human expertise, social influence, technological issues, lack of awareness, resistance of public employees, data privacy and security, the legal framework, the needed technology, administrative obstacles, and trust or believing in e-Government. Conclusions, recommendations and future work are stated at the end of the paper.
Moodle as Builder of Motivation and Autonomy in English Courses  [PDF]
Erdal Ayan
Open Journal of Modern Linguistics (OJML) , 2015, DOI: 10.4236/ojml.2015.51002
Abstract: Moodle is one of the mostly used open source learning management systems. It may create an encouraging, informative and always renewable language education environment. It is both motivating and autonomy building in particularly English language courses. In this paper, focus of the research is to survey on Moodle’s position to motivate and create autonomous e-learning in English language courses. Distinctive features of this study were that language learners who were participants of the study did not experience English preparatory class at university level and never used a particular learning management system (LMS) to learn English before. They had weekly four hours of English language classes in each term for four years of their bachelor education. The students used Moodle to learn and improve their English with asynchronous applications as an extension to face-to-face sessions of the courses. At the end of almost four months of study, averages of their exam scores and a satisfaction questionnaire were used to evaluate the effectiveness of Moodle on students’ motivations and autonomous learning. As a consequence of the study, it was observed that Moodle considerably contributed to the levels of their motivation and autonomy to improve their English language skills.
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