Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Engineering (6333)
- Physical Sciences and Mathematics (3627)
- Social and Behavioral Sciences (2697)
- Law (2082)
- Education (1928)
-
- Arts and Humanities (1669)
- Computer Sciences (1437)
- Electrical and Computer Engineering (1374)
- Life Sciences (1284)
- Civil and Environmental Engineering (1116)
- Mechanical Engineering (987)
- Medicine and Health Sciences (966)
- Business (879)
- Computer Engineering (773)
- Higher Education (705)
- Library and Information Science (678)
- History (619)
- Environmental Sciences (552)
- Biomedical Engineering and Bioengineering (535)
- Communication (492)
- Physics (477)
- Materials Science and Engineering (473)
- Public Affairs, Public Policy and Public Administration (397)
- Civil Engineering (387)
- Chemistry (374)
- Aerospace Engineering (372)
- Operations Research, Systems Engineering and Industrial Engineering (346)
- Chemical Engineering (341)
- Architecture (297)
- Earth Sciences (273)
- Institution
-
- University of Nebraska - Lincoln (1225)
- Purdue University (1052)
- California Polytechnic State University, San Luis Obispo (797)
- Missouri University of Science and Technology (662)
- Utah State University (592)
-
- University of Mississippi (504)
- Brigham Young University (501)
- University of South Florida (475)
- University of Malaya (445)
- Clemson University (427)
- University of Central Florida (427)
- University of New Hampshire (420)
- Louisiana State University (416)
- Wright State University (403)
- Technological University Dublin (382)
- San Jose State University (361)
- Singapore Management University (360)
- University of Kentucky (313)
- Georgia Southern University (311)
- Old Dominion University (310)
- University of New Mexico (310)
- Air Force Institute of Technology (303)
- University of Arkansas, Fayetteville (302)
- TÜBİTAK (290)
- University of Alabama at Birmingham (290)
- St. John's University School of Law (270)
- Portland State University (255)
- University of Nevada, Las Vegas (249)
- University of Texas at El Paso (243)
- Syracuse University (232)
- Keyword
-
- Newspaper (256)
- Education (165)
- Engineering (148)
- 2012 (142)
- News Releases (138)
-
- Higher education (136)
- Newsletter (132)
- Student newspaper (132)
- Applied sciences (123)
- Georgia Southern University (101)
- UAB (92)
- Students (89)
- Technology (88)
- Sustainability (87)
- History (86)
- Climate change (84)
- Spartan Daily (84)
- Research (83)
- Featured News (81)
- United States (79)
- Optimization (75)
- Simulation (73)
- Conference (68)
- Minutes (66)
- Energy (64)
- Utah State University (64)
- USU (62)
- Design (61)
- Humans (58)
- The Utah Statesman (58)
- Publication
-
- Theses and Dissertations (986)
- Electronic Theses and Dissertations (462)
- Faculty Publications (392)
- Theses (309)
- Master's Theses (298)
-
- Research Collection School Of Computing and Information Systems (245)
- Student Works (2010-2019) (235)
- University of Mississippi News (228)
- Canadian Military History (207)
- Masters Theses (201)
- Dissertations (195)
- International Congress on Environmental Modelling and Software (193)
- Research Publications (2011 to 2015) (192)
- St. John's Law Review (191)
- Proceedings of the IATUL Conferences (190)
- Articles (187)
- International Refrigeration and Air Conditioning Conference (170)
- Graduate Theses, Dissertations, and Problem Reports (ETD) (166)
- All Theses (165)
- Computer Science & Engineering Syllabi (165)
- USF Tampa Graduate Theses and Dissertations (165)
- Graduate Theses and Dissertations (155)
- Faculty Scholarship (148)
- Idaho Supreme Court Records & Briefs, All (148)
- Daily Mississippian (all digitized issues) (144)
- LSU Master's Theses (140)
- Doctoral Dissertations (139)
- Open Access Theses & Dissertations (138)
- Electrical and Computer Engineering Faculty Research & Creative Works (127)
- Obituaries (121)
- Publication Type
- File Type
Articles 61 - 90 of 28479
Full-Text Articles in Entire DC Network
Murray Ledger And Times, December 31, 2012, Murray Ledger And Times
Murray Ledger And Times, December 31, 2012, Murray Ledger And Times
The Murray Ledger & Times
No abstract provided.
Information-Seeking 2.0:The Effects Of Informational Advantage, Laura Robinson
Information-Seeking 2.0:The Effects Of Informational Advantage, Laura Robinson
Sociology
This article begins to shed light on the use of new media for information acquisition and assessment. Drawing on the subject of a high school diploma for high school students, the article examines high achievers committed to academic excellence in preparation for college. However, while they share the same educational goals, they do not have access to the same informational resources. Information on advancing access to new media, traditional media, and social networks. Examination reveals how these disparities in the field of information are important Students with positive credentials adopt autonomous strategies vis-à-vis the assessment of information for both schoolwork …
Deafdigest: Blue Edition, December 30, 2012, Barry Strassler
Deafdigest: Blue Edition, December 30, 2012, Barry Strassler
DeafDigest Blue 2012
No abstract provided.
Exploring Cybercultures: Critical And Constructivist Studies On The Internet, Rhoderick Nuncio
Exploring Cybercultures: Critical And Constructivist Studies On The Internet, Rhoderick Nuncio
Asia-Pacific Social Science Review
The essay lays the sociological grounds in understanding the phenomenon of cyberculture in the age of information and communication technology. The frame of the paper is limited to constructivist and critical studies found in books and other journals. This essay particularly examines the debate on defining Internet culture and the many possible worlds and spaces it occupy in the lives of Internet users. It describes the beginning of research on the Internet and thus explains the dearth of materials in other paradigms. The paper recommends exploring other domains of interrogating the Internet as it evolves and matures through the years.
An Ultra-Low Power Communication Protocol For A Self-Powered Wireless Sensor Based Animal Monitoring System, Tao Ma
Department of Computer Electronics and Engineering: Dissertations, Theses, and Student Research
To prevent and control the outbreak of contagious animal disease, many countries have developed animal identification and tracking systems. However, the current animal identification and tracking system, which is based on passive RFID technology, has many limitations such as the short communication range and incapability of automatically monitoring the animal. To overcome these limitations, our Advanced Telecommunications Engineering Laboratory (TEL) in Department of Computer and Electronics Engineering (CEEN), University of Nebraska-Lincoln took the mission of developing a more advanced monitoring system for animal identification and tracking. This dissertation work as a part of this mission was focusing on developing an …
Leadership Contestations, Succession, And Stability In Malaysia And Indonesia, Yang Razali Kassim
Leadership Contestations, Succession, And Stability In Malaysia And Indonesia, Yang Razali Kassim
Asia-Pacific Social Science Review
While Southeast Asia is generally stable, political leadership in two regional states is going through a period of uncertainty. The leaderships in Malaysia and Indonesia are undergoing some stress as they face the challenges of transition. Najib Razak, who was appointed Prime Minister of Malaysia in 2009, is due to call a general election to win his first mandate from the people. Najib’s return to office is likely, though this is not a certainty, as Malaysian politics have become more unpredictable. Indonesia’s President Susilo Bambang Yudhoyono is to step down in 2014 at the end of his second and mandatory …
The Ethnopolitics Of Moro Self-Determination In The Philippines: So Little, Too Late?, Rizal G. Buendia
The Ethnopolitics Of Moro Self-Determination In The Philippines: So Little, Too Late?, Rizal G. Buendia
Asia-Pacific Social Science Review
The paper re-examines the Moro secessionist movement in the Philippines from the perspective of ethno-politics. Using a hybrid framework, which combines Paul Brass’ and Abner Cohen’s instrumentalist approach to ethnicity on the one hand and Michael Hechter’s and Michael Banton’s rational choice theory on the other hand, the paper argues that the complexity of the current separatist war is not simply due to the weakness of the state but also due to the weakness of the Bangsamoro identity and notion of nationhood. This frailty allows the state to co-opt leaders of the movement and sabotage their legitimate quest for self-governance …
Socio-Economic Impacts, Social Inclusion, And Science-Policy Interphase: The Case Of Rice Biotechnology In The Philippines, Antonio P. Contreras
Socio-Economic Impacts, Social Inclusion, And Science-Policy Interphase: The Case Of Rice Biotechnology In The Philippines, Antonio P. Contreras
Asia-Pacific Social Science Review
The paper argues that the development of biotechnology policies in the Philippines vis-à-vis rice is enabled by structures and processes that are friendly to the furtherance of social inclusion and equity goals. This occurs in the context of attaining rice self-sufficiency amidst a globalized system and is clearly expressed in the relative density of concepts and provisions related to participation, inclusivity, and transparency in all the relevant policy instruments. However, spaces that are opened are vulnerable to a political system that has deep-seated structural flaws and a science community whose financial support from the state is limited and at the …
An Investigation Of Security Challenges In Cognitive Radio Networks, Deepraj S. Vernekar
An Investigation Of Security Challenges In Cognitive Radio Networks, Deepraj S. Vernekar
Department of Computer Electronics and Engineering: Dissertations, Theses, and Student Research
The recent advances in wireless communication have led to the problem of growing spectrum scarcity. The available wireless spectrum has become scarcer due to increasing spectrum demand for new wireless applications. The large portion of the allocated spectrum is sporadically used leading to underutilization of significant amount of spectrum. To improve the spectrum efficiency, the idea of cognitive radio technology was introduced. This concept of cognitive radio provides a promising solution for the spectrum scarcity issues in wireless networks. Meanwhile, the security issues of cognitive radio have received more attentions recently since the inherent properties of CR networks would pose …
Online Nonintrusive Condition Monitoring And Fault Detection For Wind Turbines, Xiang Gong
Online Nonintrusive Condition Monitoring And Fault Detection For Wind Turbines, Xiang Gong
Department of Electrical and Computer Engineering: Dissertations, Theses, and Student Research
The goal of this dissertation research is to develop online nonintrusive condition monitoring and fault detection methods for wind turbine generators (WTGs). The proposed methods use only the current measurements that have already been used by the control and protection systems of WTGs; no additional sensors or data acquisition devices are needed. Current-based condition monitoring and fault detection techniques have great economic benefits and the potential to be adopted by the wind energy industry. However, there are challenges in using current measurements for wind turbine condition monitoring and fault detection. First, it is a challenge to extract WTG fault signatures …
Open Archives Initiative Protocol For Metadata Harvesting, Dublin Core And Accessibility In The Oaister Repository, Michael Peake
Open Archives Initiative Protocol For Metadata Harvesting, Dublin Core And Accessibility In The Oaister Repository, Michael Peake
Library Philosophy and Practice (e-journal)
This paper examines the use of Dublin Core as a minimum metadata standard for Open Archives Initiative Protocol for Metadata Harvesting in terms of its impact on end user experience in the OAIster repository. Specifically the study looked at the use of controlled vocabulary searches versus non-controlled vocabulary searches, as well as the impact of Dublin Core on the granularity and consistency records. Searches were performed in OAIster using Library of Congress Subject Headings and Name Authority Files, as well as non-controlled vocabulary searches for the same terms. The study concluded that controlled vocabulary searches are good for retrieving relevant …
Women In The Post-Conflict Process: Reviewing The Impact Of Recent U.N. Actions In Achieving Gender Centrality, Dina Francesca Haynes, Naomi Cahn, Fionnuala Ní Aoláin
Women In The Post-Conflict Process: Reviewing The Impact Of Recent U.N. Actions In Achieving Gender Centrality, Dina Francesca Haynes, Naomi Cahn, Fionnuala Ní Aoláin
Santa Clara Journal of International Law
No abstract provided.
Functional α7β2 Nicotinic Acetylcholine Receptors Expressed In Hippocampal Interneurons Exhibit High Sensitivity To Pathological Level Of Amyloid β Peptides, Qiang Liu, Yao Huang, Jianxin Shen, Scott Steffensen, Jie Wu
Functional α7β2 Nicotinic Acetylcholine Receptors Expressed In Hippocampal Interneurons Exhibit High Sensitivity To Pathological Level Of Amyloid β Peptides, Qiang Liu, Yao Huang, Jianxin Shen, Scott Steffensen, Jie Wu
Translational Neuroscience
Background: β-amyloid (Aβ) accumulation is described as a hallmark of Alzheimer's disease (AD). Aβ perturbs a number of synaptic components including nicotinic acetylcholine receptors containing α7 subunits (α7-nAChRs), which are abundantly expressed in the hippocampus and found on GABAergic interneurons. We have previously demonstrated the existence of a novel, heteromeric α7β2-nAChR in basal forebrain cholinergic neurons that exhibits high sensitivity to acute Aβ exposure. To extend our previous work, we evaluated the expression and pharmacology of α7β2-nAChRs in hippocampal interneurons and their sensitivity to Aβ.Results: GABAergic interneurons in the CA1 subregion of the hippocampus expressed functional α7β2-nAChRs, which were characterized …
Murray Ledger And Times, December 29, 2012, Murray Ledger And Times
Murray Ledger And Times, December 29, 2012, Murray Ledger And Times
The Murray Ledger & Times
No abstract provided.
Ict Skills And Computer Self-Efficacy Of Research Students: The Case Of Institute Of Pure & Applied Biology And Biotechnology, Bahauddin Zakariya University, Multan, Pakistan, Muhammad Naushad Sabzwari, Rubina Bhatti, Bashir Ahmed
Ict Skills And Computer Self-Efficacy Of Research Students: The Case Of Institute Of Pure & Applied Biology And Biotechnology, Bahauddin Zakariya University, Multan, Pakistan, Muhammad Naushad Sabzwari, Rubina Bhatti, Bashir Ahmed
Library Philosophy and Practice (e-journal)
In the current changing higher education environment research students need to possess ample skills related to use of computer and different ICTs for education and research purposes. This study aims to investigate the awareness, usage and impact of information and communication technologies (ICTs) for information, education and research purposes among the Botany, Zoology and Biotechnology research students of Bahauddin Zakariya University, Multan. For this purpose, data was collected from students involved in research, in order to get information and awareness about their competencies and skills in ICT and other searching and data analyzing tools. The literature review shows that most …
12/28/2012 Obituary Records, Hawaii Obituaries
12/28/2012 Obituary Records, Hawaii Obituaries
Obituaries
List of Obituaries for individuals who passed away on 12/28/2012. Scroll down to see the names and obituary description.
Students’ Science Knowledge As A Constraint In Developing Interests In Science Studies Among Secondary School Learners In Tanzania, John F. Kalolo, Eugenia J. Kafanabo
Students’ Science Knowledge As A Constraint In Developing Interests In Science Studies Among Secondary School Learners In Tanzania, John F. Kalolo, Eugenia J. Kafanabo
Journal of Humanities and Social Sciences
The paper examines how students’ science knowledge is a constraint in developing interests in science studies. There are three objectives that guided the study on which this paper is based: examining student’s background knowledge about science and its related careers; assessing student’s awareness on science related professions; and examining the availability of various sources of science knowledge in schools for developing interest in science subjects in secondary schools. A total of 246 respondents participated in the study; and these included 60 teachers, 180 students and 6 heads of schools. The data were collected through questionnaire, interview, focus group discussion, and …
Relationship Between Listening Comprehension And Signal-To-Noise Ratio Loss In Children, Juli Beth Junkersfeld
Relationship Between Listening Comprehension And Signal-To-Noise Ratio Loss In Children, Juli Beth Junkersfeld
Student Theses and Dissertations
This study compared the listening comprehension skills and signal-to-noise ratio hearing loss of third grade children. A pool of potential participants was formed based on their scores earned on the listening comprehension subtest of the Group Reading Assessment and Diagnostic Examination (GRADE). Twenty-one third grade students were available for participation in this study. In order to accomplish the purposes of this study, the same 21 children were grouped by three separate criteria: listening comprehension scores, sentence comprehension scores, and hearing sensitivity. The instrument used in this study was the Quick Speech In Noise (QuickSIN), an adaptive test that uses a …
Electrocatalytic Oxidation Of Formic Acid On Pd/Ni Heterostructured Catalyst, Mingjun Ren, Liangliang Zou, Ju Chen, Ting Yuan, Qinghong Huang, Haifeng Zhang, Hui Yang, Songlin Feng
Electrocatalytic Oxidation Of Formic Acid On Pd/Ni Heterostructured Catalyst, Mingjun Ren, Liangliang Zou, Ju Chen, Ting Yuan, Qinghong Huang, Haifeng Zhang, Hui Yang, Songlin Feng
Journal of Electrochemistry
A Pd/Ni bimetallic nanostructured electrocatalyst was fabricated via a two-step reduction route. Owing to an epitaxial growth of Pd atoms on the surface of Ni nanoparticles, heterostructured Pd/Ni nanocomposites were formed and verified by high resolution transmission electron microscopy combined with energy-dispersion X-ray spectroscopy. X-ray diffraction confirmed that the as-prepared Pd/Ni nanocomposites possessed a single face-centered-cubic (fcc) Pd structure, probably due to a weaker diffraction intensity of metallic Ni and/or overlapping by that of Pd. The intrinsic catalytic activity on the Pd/Ni is higher than that on the Pd. Moreover, the durability of formic acid oxidation on the Pd/Ni was …
Electrochemical Performance Of Screen-Printed Composite Coatings Of Conducting Polymers And Carbon Nanotubes On Titanium Bipolar Plates In Aqueous Asymmetrical Supercapacitors, Xiaohang Zhou, George Z. Chen
Electrochemical Performance Of Screen-Printed Composite Coatings Of Conducting Polymers And Carbon Nanotubes On Titanium Bipolar Plates In Aqueous Asymmetrical Supercapacitors, Xiaohang Zhou, George Z. Chen
Journal of Electrochemistry
Composites of conducting polymers (polypyrrole and polyaniline) with acid treated multi-walled carbon nanotubes were formulated into printable aqueous inks, with the aid of functional additives (benzethonium chloride as a surfactant with or without polyvinyl alcohol as a binder). The inks were screen-printed as fairly uniform coatings of various mass loading densities and areas (up to 75 mg cm-2 and 100 cm2) on thin titanium plates (0.1 mm in thickness). These screen-printed plates were used to fabricate both unit cell and multi-cell stack of asymmetrical supercapacitors with screen-printed negative electrodes of activated carbon (pigment black) in aqueous electrolytes …
The Role Of Heads Of Departments In Enhancing The Quality Of Education In Secondary Schools In Tanzania, Perpetua J. Urio
The Role Of Heads Of Departments In Enhancing The Quality Of Education In Secondary Schools In Tanzania, Perpetua J. Urio
Journal of Humanities and Social Sciences
Heads of department are perceived as instructional leaders. This paper is based on a study that aimed to find out how heads of departments in Tanzanian secondary schools deal with their tasks in enhancing the quality of education, and the support accorded to them by the school administrative system in the performance of their duties. The study was conducted in Arusha and Coast regions, comprising a sample of 72 respondents from eight secondary schools. Data were collected through interviews, questionnaires and documentary review. Data collected were subjected to content analysis and numerical data were summarized into tables. Findings revealed that, …
Development Of Information And Communication Technology In Education In Tanzania: How Is Duce Playing Its Role?, Josta L. Nzilano, Ayoub C. Kafyulilo
Development Of Information And Communication Technology In Education In Tanzania: How Is Duce Playing Its Role?, Josta L. Nzilano, Ayoub C. Kafyulilo
Journal of Humanities and Social Sciences
This paper presents the ICT integration situation in Tanzania, and the efforts that are being made by the Dar es Salaam University College of Education (DUCE), as a teacher training institution, to have ICT integrated in the education system at the college and country at large. Over 60 articles and reports were gathered and read in the process of writing the paper. However, through rigorous review of each article only 35 were found to match best with the goal of this study. Results from literature indicate that technology integration in the country was still at an infant stage. Most educational …
Teacher Resource Centres: A Strategy For Secondary School Teachers’ Professional Development In Tanzania, Gadi Moses Koda
Teacher Resource Centres: A Strategy For Secondary School Teachers’ Professional Development In Tanzania, Gadi Moses Koda
Journal of Humanities and Social Sciences
The overall education level in Tanzanians has increased in terms of schooling and even in fundamental literacy. While enrolment in secondary schools has been increasing rapidly, Form IV examinations results since 2010 have been discouraging, showing that there is a problem in the education system (NECTA, 2010). To address the situation, this article presents the needs for alternative strategies for secondary school teachers’ professional development in Tanzania. It focuses on the Teacher Resource Centre (TRC) approach as a strategy for secondary school teachers’ professional development in Tanzania. The paper also discusses equipment, materials, accessibility and management as well as teachers’ …
An Inquiry Into The Political Correctness In Swahili And Mashami Traditions, Benedictor Phanuel Lema
An Inquiry Into The Political Correctness In Swahili And Mashami Traditions, Benedictor Phanuel Lema
Journal of Humanities and Social Sciences
Political correctness evidences naturally evolving socio-political and economic dynamics that are constantly in force. This paper shows that political correctness, viewed from the perspective of the seemingly socio-cultural readjustments, needs to be understood from the underlying socio-cultural and political forces that are strongly embedded in the social structures. Borrowing from Swahili and Mashami cultures, this paper shows differences in the way they neutralize unfriendly terms, particularly in events where the labelling is a result of the work of God and naturally imposed calamities. It establishes that whereas Swahili culture seems to be rude in the eyes of the activists in …
Advances And Challenges Of Intermediate Temperature Solid Oxide Fuel Cells: A Concise Review, Sanping Jiang
Advances And Challenges Of Intermediate Temperature Solid Oxide Fuel Cells: A Concise Review, Sanping Jiang
Journal of Electrochemistry
Fuel cell is an electrochemical energy conversion device to directly convert the chemical energy of fuels to electricity. Among all types of fuel cells, solid oxide fuel cells (SOFCs) operating at intermediate temperatures of 600~800 oC offer an attractive option that is much more fuel flexible than low temperature fuel cells such as proton exchange membrane fuel cells, and is suitable for a wide range of applications. However, two main challenges remain towards the commercial viability and acceptance of the SOFC technologies: the cost and durability. Both are critically dependent on the process, fabrication, performance, chemical and microstructural stability …
Electrocatalytic Activity Of Palladium Nanocatalysts Supported On Carbon Nanoparticles In Formic Acid Oxidation, Jie Huang, Zhiyou Zhou, Yang Song, Xiongwu Kang, Ke Liu, Wancheng Zhou, Shaowei Chen
Electrocatalytic Activity Of Palladium Nanocatalysts Supported On Carbon Nanoparticles In Formic Acid Oxidation, Jie Huang, Zhiyou Zhou, Yang Song, Xiongwu Kang, Ke Liu, Wancheng Zhou, Shaowei Chen
Journal of Electrochemistry
Palladium nanostructures were deposited onto carbon nanoparticle surface by a chemical reduction method. Transmission electron microscopic studies showed that whereas the resulting metal-carbon (Pd-CNP) nanocomposites exhibited a diameter of 20 to 30 nm, the metal components actually showed a cauliflower-like surface morphology that consisted of numerous smaller Pd nanoparticles (3 to 8 nm). Electrochemical studies showed that the effective surface area of the Pd-CNP nanoparticles was about 40% less than that of Pd black, possibly because the Pd nanoparticles were coated with a layer of carbon nanoparticles; yet, the Pd-CNP nanocomposites exhibited marked enhancement of the electrocatalytic activity in formic …
Adsorption And Electrooxidation Of Carbon Monoxide On Platinum Surfaces Modified With Sulfur, A. Mattox Mathew, W. Henney Matthew, Johnson Adam, Zou Shouzhong
Adsorption And Electrooxidation Of Carbon Monoxide On Platinum Surfaces Modified With Sulfur, A. Mattox Mathew, W. Henney Matthew, Johnson Adam, Zou Shouzhong
Journal of Electrochemistry
Adsorbed sulfur is commonly considered as a reaction poison. However, small amounts of sulfur on platinum significantly increase the surface reactivity toward carbon monoxide (CO) electrooxidation. For the solution CO oxidation, the onset potential was shifted up to over 300 mV negative to that on S-free surface, and the extent of the negative potential shift increases with the sulfur coverage (Xs) up to about 0.6. The enhanced CO oxidation also depends on the solution pH. For the adsorbed CO, at low sulfur coverages (Xs < 0.3), the oxidation peak potential is about 40 mV negative to that of the corresponding clean Pt. However, at higher coverages, the peak potential is about 30 mV more positive. Surface-enhanced Raman spectra show that the adsorption of sulfur significantly redshifts the Pt-CO stretching frequency. These observations are explained by the weakening of the Pt-CO bond and the hindrance of CO diffusion by Sads.
Kinetic Study Of Photoelectrochemical Oxidation Of Lignin Model Compounds On Tio2 Nanotubes, Min Tian, Daniel Liba, Aicheng Chen
Kinetic Study Of Photoelectrochemical Oxidation Of Lignin Model Compounds On Tio2 Nanotubes, Min Tian, Daniel Liba, Aicheng Chen
Journal of Electrochemistry
In this study, TiO2 nanotubes were prepared via the electrochemical oxidation of titanium substrates in a non-aqueous electrolyte and their morphology and microstructures were examined by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The photoelectrochemical oxidation of two lignin model compounds, 1-(3,4-dimethoxyphenoxy)-2-(2-methoxyphenoxy)-1,3-propanediol (DMP) and 3-hydroxy-1-(3,4-dimethoxyphenoxy)-2-(2-methoxyphenoxy)-1,3-propanone (HDM), was investigated. A new band appeared at ~304 nm during the photoelectrochemical oxidation of DMP. The rate of DMP intermediate formation was amplified with the increase of initial concentrations, while it was diminished with increased temperature. Despite the similarity in structure between HDM and DMP, there are only small increases in absorbance …
Ternary Alloy Electrocatalysts For Oxygen Reduction Reaction, Jin Luo, Lefu Yang, Binghui Chen, Chuanjian Zhong
Ternary Alloy Electrocatalysts For Oxygen Reduction Reaction, Jin Luo, Lefu Yang, Binghui Chen, Chuanjian Zhong
Journal of Electrochemistry
Proton exchange membrane fuel cell represents an important electrochemical energy conversion device with many attractive features in terms of efficiency of energy conversion and minimization of environmental pollution. However, the large overpotential for oxygen reduction reaction at the cathode and the low activity, poor durability and high cost of platinum-based catalysts in the fuel cells constitute a focal point of major barriers to the commercialization of fuel cells. The development of nanostructured catalysts shows promises to addresses some of the challenging problems. The ability to engineer the composition and nanostructure of nanoalloy catalysts is important for developing active, robust and …
Src Activation By Β-Adrenoreceptors Is A Key Switch For Tumor Metastasis, Guillermo N. Armaiz-Pena, Julie K. Allen, Anthony Cruz, Rebecca L. Stone, Alpa M. Nick, Yvonne G. Lin, Liz Y. Han, Lingegowda S. Mangala, Gabriel J. Villares, Pablo Vivas-Mejia, Cristian Rodriguez-Aquayo, Archana S. Nagaraja, Kshipra M. Gharpure, Zheng Wu, Robert D. English, Kizhake V. Soman, Mian M. K. Shazhad, Maya Zigler, Michael T. Deavers, Alexander Zien, Tom Young
Src Activation By Β-Adrenoreceptors Is A Key Switch For Tumor Metastasis, Guillermo N. Armaiz-Pena, Julie K. Allen, Anthony Cruz, Rebecca L. Stone, Alpa M. Nick, Yvonne G. Lin, Liz Y. Han, Lingegowda S. Mangala, Gabriel J. Villares, Pablo Vivas-Mejia, Cristian Rodriguez-Aquayo, Archana S. Nagaraja, Kshipra M. Gharpure, Zheng Wu, Robert D. English, Kizhake V. Soman, Mian M. K. Shazhad, Maya Zigler, Michael T. Deavers, Alexander Zien, Tom Young
Publications and Research
Norepinephrine (NE) can modulate multiple cellular functions important for cancer progression; however, how this single extracellular signal regulates such a broad array of cellular processes is unknown. Here, we identify Src as a key regulator of phosphoproteomic signaling networks activated in response to beta-adrenergic signaling in cancer cells. These results also identify a new mechanism of Src phosphorylation that mediates beta-adrenergic/PKA regulation of downstream networks, thereby enhancing tumor cell migration, invasion and growth. In human ovarian cancer samples, high tumoral NE levels were correlated with high pSrcY419 levels. Moreover, among cancer patients, the use of beta blockers was significantly associated …