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Cover And Contents

Turkish Journal of Physics

No abstract provided.

Cover And Contents

Turkish Journal of Physics

No abstract provided.

Gumbo Yearbook, Class Of 2004, Louisiana State University And Agricultural And Mechanical College

Gumbo Yearbook

The Gumbo yearbook chronicles the entire academic year at LSU. In words and especially photos, the Gumbo shows the people, places, and events that make each year unique. In addition to formal portraits of schools and departments, the book contains hundreds of snapshots of students with their friends and dozens of pages showcasing organizations.

Regulation Of Human Papillomavirus Dna Helicase E1 And Virus Dna Replication., Wentao Deng

All ETDs from UAB

No abstract provided.

Mechanisms Of Resistance To Halogenated And Non-Halogenated Ahr Ligands In Chronically Contaminated Killifish Populations, Xabier Arzuaga

University of Kentucky Doctoral Dissertations

Chronically contaminated killifish from Newark Bay (NB) NJ, and New Bedford Harbor (NBH) MA, have developed resistance to halogenated aromatic hydrocarbons that bind to and activate the aryl hydrocarbon receptor (AHR). To study the mechanisms of resistance, adult killifish were exposed to halogenated and non-halogenated AHR ligands and enzymatic and toxicological endpoints were measured in adult and embryonic fish.

The chlorinated and non-chlorinated AHR ligands 3,34,4-tetrachlorobiphenyl (PCB77) and benzo-a-pyrene (B[a]P) induced cytochrome P450 1A (CYP1A) in reference site, but not in NB killifish. Expression of CYP3A (not part of the AHR gene battery) was inducible only in Flax Pond killifish. …

Structural Attributes Of Schizachyrium Scoparium In Restored Texas Blackland Prairies, Justin D. Derner, H. Wayne Polley, Hyrum B. Johnson, Charles R. Tischler

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Structural attributes of the C₄, perennial bunchgrass Schizachyrium scoparium in restored prairies may be affected by the time since restoration. One hundred plants each in 8-, 17-, and 23-year-old restored prairies and a native Texas Blackland prairie were assessed for the presence/absence and diameter of a hollow crown (i.e., dead center portion), degree of fragmentation, plant height, and tiller density.

Analysis Of Demographic Variables And Levels Of Stress In Law Enforcement Officers, Kathleen M. Jansen

PCOM Psychology Dissertations

Employment in a law enforcement profession exposes an individual to potential stressors not experienced in most other professions. Sporadic efforts have been made to design stress management programs to assist officers in coping with the demands of their jobs. Much of the previous research on law enforcement stress has focused on examining the effectiveness of various coping skills; however, the training has focused on teaching a healthy lifestyle. This study seeks to add to the existing research by examining what elements of the job are perceived as the most stressful and what demographic variables, if any, may influence an individual's …

Psychologists' Skepticism And Knowledge About Dissociative Identity Disorders In Adolescents, Nancy E. Madden

PCOM Psychology Dissertations

Professional skepticism about DID and lack of knowledge about DID has been documented in the adult literature on dissociative pathology (Hayes and Mitchell, 1994). Although 100% of adult DID cases are thought to have originated in childhood as sequelae of trauma, to date no studies about professional skepticism of and knowledge about DID have been done with psychologists who specialize in assessing children and adolescents. This study was designed to investigate the beliefs about DID and knowledge of DID that has been garnered by psychologists who specialize in assessing and treating adolescents. This study consisted of a convenience sample of …

Leaching And Sorption Of Nitrogen And Phosphorus By Crop Residue, J. D. Cermak, John E. Gilley, Bahman Eghball, Brian J. Wienhold

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Overland flow from cropland areas often contains nutrients and residue materials can either contribute to runoff nutrient load through leaching or remove nutrients by sorption. Measurements were made of leaching and sorption of nitrogen and phosphorus from corn (Zea mays L.), soybean (Glycine max (L.) Merr.) and winter wheat (Triticum aestivum L. cv. Pastiche) residues placed in solutions containing inorganic nutrients. Variables used were type of residue material, nutrient constituent, solution concentration, and residue / solution contact time. For a given residue material and nutrient constituent, four different solution concentrations were used (PO₄ -P: 0 to …

Determination Of Dimethylselenide And Dimethyldiselenide By Gas Chromatography–Photoionization Detection, William J. Hunter, L. David Kuykendall

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

A simple method for the determination of volatile selenium compounds employing a gas chromatograph equipped with a photoionization detector is described. The method involves the direct injection of dimethylselenide (DMS) or dimethyldiselenide (DMDS) into the gas chromatograph; no derivatization of the sample was required. The photoionization detector was capable of detecting 60 pg (0.55 pmol) of DMS and 150 pg (0.80 pmol) DMDS. Sensitivity was 10–50 times greater with DMS and 4–20 times greater with DMDS when the photoionization detector was employed than when the flame ionization detector was employed.

Detection And Characterization Of Amitraz Resistance In The Southern Cattle Tick, Boophilus Microplus (Acari: Ixodidae), Andrew Y. Li, Ronald B. Davey, Robert J. Miller, John E. George

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Amitraz, a formamidine acaricide, plays an important role in the control of the southern cattle tick, Boophilus microplus (Canestrini), and other tick species that infest cattle, dogs, and wild animals. Although resistance to amitraz in B. microplus was previously reported in several countries, the actual measurement of the level of amitraz resistance in ticks has been difficult to determine due to the lack of a proper bioassay technique. We conducted a survey, by using a newly reported technique that was a modification of the standard Food and Agriculture Organization larval packet test, to measure the levels of resistance to amitraz …

Temperature-Dependent Oxygen Limitation In Insect Eggs, H. Arthur Woods, Ryan I. Hill

College of the Pacific Faculty Articles

Most terrestrial insect embryos support metabolism with oxygen from the environment by diffusion across the eggshell. Because metabolism is more temperature sensitive than diffusion, embryos should be relatively oxygen-limited at high temperatures. We tested whether survival, development time and metabolism of eggs of a moth, Manduca sexta, were sensitive to experimentally imposed variation in atmospheric oxygen availability (5–50 kPa; normoxia at sea level is 21 kPa) across a range of biologically realistic temperatures. Temperature–oxygen interactions were apparent in most experiments. Hypoxia affected survival more strongly at warmer temperatures. Metabolic rates, measured as rates of CO₂ emission, were virtually insensitive …

Using Benthic Macroinvertebrate Community For Water Quality Classification With Notes On The Caddisfly Larvae (Trichoptera) In A River, Endau-Rompin Forest Reserve, Malaysia / Chan Voon Seng, Voon Seng Chan

Student Works (2000-2009)

No abstract provided.

Evaluation And Optimization Of Extraction And Purification Methods For Obtaining Pcr-Amplifiable Dna From Mangrove Soil For Studies In Microbial Ecology /Mohamad Ridzuan Bin Kamarudin, Mohamad Ridzuan Kamarudin

Student Works (2000-2009)

No abstract provided.

The Roles Of Environmental Quality Act, Department Of Environment And Judges In The Prevention Of Environmental Pollution In Malaysia / Nahzatul Ain Mohd Khalid, Mohd Khalid Nahzatul Ain

Student Works (2000-2009)

This dissertation attempts o examine the effectiveness of the roles playe by the Environmental Quality Act, the Department of Environment and he Jud1c1ary in the prevention of environmental pollution in Malaysia It firs outlines the concept of environmen, t, environmental pollut1on,environmental law, sources and consequences of en ironmental pollution. One of the main focus of his dissertation is to assess he Environmental Quality Act 1974 and to discuss it's implementation problems in he background of constitutional provisions.

Solving Transcendental Equation Using Genetic Algorithm / Masitah Hambari, Hambari Masitah

Student Works (2000-2009)

A problem of great importance in engineering is finding the roots of the equations. There are closed form expressions for the case of linear, quadratic or cubic equations. For higher orders like Transcendental Equation, Numerical Methods is used to find the solutions. Genetic algorithm (GA) has long been used for optimization problems that arise in a wide variety of complex systems. This project studies and explores the potential of using Genetic Algorithm to solve Transcendental Equation. Genetic Algorithm is used to find the roots or set of optimal solution that satisfy the equation. The most critical task for developing this …

Simulation Of Shortest Path Using A-Star Algorithm / Nurul Hani Nortaja, Nortaja Nurul Hani

Student Works (2000-2009)

The shortest path problem has been widely studied for decades. It has been applied in many practical applications. For most of the cases of the shortest route finding, the Dijkstra's algorithm is known to be an optimal search algorithm. Nonetheless, the A • algorithm do have some unique properties which is more efficient in finding the shortest path especially in human real-world problem. In this thesis, the scope of study focuses on the efficiency of the A • algorithm to make the pathfinding for a shortest route from parking entrance to the empty parking space in parking lot in fastest …

Expert System: Mushroom Species / Nur Fuhaizah Mohammad Fawzi, Mohammad Fawzi Nur Fuhaizah

Student Works (2000-2009)

Expert Systems are computer programs that use artificial intelligence to solve problems within a specialized domain that ordinarily requires human expertise. A very important aspect of helping mycologist with diagnosis of the mushroom health effects is the identification itself by using only the visible feature of the mushroom. Their identification, although very important, is often difficult. This thesis addresses this problem by providing an expert system that takes into consideration various factors about the mushroom, and presents identification as a possible solution. In order to achieve the purpose, the system uses Prolog, a logic programming. In this paper, chapter one …

Magnetic Resonance Image Segmentation Using Pulse-Coupled Neural Network / Siti Shufinaz Mohd Zainudin, Mohd Zainudin Siti Shufinaz

Student Works (2000-2009)

The pulse-coupled neuron, which is significantly-different from the conventional artificial neuron, is a result of recent research conducted on the visual cortex of cats and monkeys. Pulse-coupled neural networks (PCNNs) are modeled to capture the essence of recent understanding of image interpretation processes in biological neural systems. Study indicates that the PCNN is capable of image smoothing, image segmentation and feature extraction. The PCNN reduces noise in digital images better than traditional smoothing techniques. As an image segmented the PCNN performs well even when the intensity varies significantly within regions, and adjacent regions have overlapping intensity ranges.

Course Advisory System / Lee Chee Siong, Chee Siong Lee

Student Works (2000-2009)

Artificial Intelligent is relatively new field in computer science in our country although it has been established for years in other countries. The successful implementation of artificial intelligent methods in a number of domains, especially in advisory domain, has inspired the creation of a Web-based advisory system based on artificial intelligent methods, hence, Course Advisory System (CAS). The main purpose of CAS is to enable STPM students that are applying for courses during the university in-take to get advice through the use of Internet thus given students a better chance of securing a place in university. The system also enables …

Magnetic Resonance Image Segmentation Using Pulse-Coupled Neural Network / Siti Shufinaz Mohd Zainudin, Mohd Zainudin Siti Shufinaz

Student Works (2000-2009)

The pulse-coupled neuron, which is significantly different from the conventional artificial neuron, is a result of recent research conducted on the visual cortex of cats and monkeys. Pulse-coupled neural networks (PCNNs) are modeled to capture the essence of recent understanding of image interpretation processes in biological neural systems. Study indicates that the PCNN is capable of image smoothing, image segmentation and feature extraction. The PCNN reduces noise in digital images better than traditional smoothing techniques. As an image segmented the PCNN performs well even when the intensity varies significantly within regions, and adjacent regions have overlapping intensity ranges.

Face Detection System / Chan Beh Teng, Beh Teng Chan

Student Works (2000-2009)

The aim of this project is to replicate on a computer what humans beings are able to do so effortlessly - detect the presence of the faces in their field of vision. To a layman, it may appear trivial, but to actually implement the necessary steps leading to successful execution of this in n algorithm is difficult and still an unsolved problem in computer vision.The proposed Face Detection System is an application that automates the detection of frontal human faces(s) in a given image. The System perform all tasks including image pre-processing, analysis and output. The user merely present it …

Interactive Learning Package For Artificial Neural Network (Demonstration Module) / Camellia Mohd Kamal, Mohd Kamal Camellia

Student Works (2000-2009)

Interactive Learning Package for Artificial Neural Network (Demonstration Module) is a learning package that allow the users to learn and enhance the understanding of the ANN subject in more detailed way and apply in the demonstration parts. Every demonstration will be followed by a brief and compact explanation therefore the user can understand more clearly about the demonstration and know hoe to do it very well. The demonstration module provides the users only with the important notes that the user must know because the explanation already described in learning modules. For the tutorial questions, for the demonstration modules most of …

A History Of Artificial Intelligence / Tang Su Ai, Su Ai Tang

Student Works (2000-2009)

The history of Artificial Intelligence (Al) Website is a dynamic web-based one stop centre that offer comprehensive information about the history of Artificial Intelligence. It provides an efficient method of information searching and browsing with contemporary and attractive user-friendly and hypermedia-based user interface design. On the maintenance side, the information is well organized in a way that the web administrator can easily add on or modify the website effortlessly. The primary objective of the website arc to gather all the in formation related to the history of AI and provide a comprehensive source as well as a centralized repository of …

Kidney Simulation In 3 Dimensional Environment "Digikid" / Dennis Foong Yew Han, Yew Han Dennis Foong

Student Works (2000-2009)

DigiKid is a standalone system that promises quick and efficient way to gain knowledge on kidney anatomy. The entire learning experience is integrated with interactive 3D elements. DigiKid is available will cater the hunger for any individuals especially the non-biology students.The objectives of DigiKid are to create an interactive learning process in virtual reality environment. The user interface design is target at non- expert computer users to widen the scope of users. Rapid Application Development model is used to develop DigiKid . The tools involved in the development of DigiKid arc els MAX, Adobe Photoshop 7.0, Adobe Premiere Pro, Macromedia …

Pbl Facilitator / Nurul Sufiani Ahmad, Ahmad Nurul Sufiani

Student Works (2000-2009)

The traditional learning method, lecture-based learning that's still dominating learning method not only Malaysia, but almost everywhere in the world, can no longer ensure student's career stability in real world after education despite high academic achievement. In lecture-based learning or LBL, students usually tend to memorize information that the teachers feed to them for examination purpose without really understanding the meaning of the facts. This scenario won't guarantee students' readiness to face real problems in real world, a they won't be able to apply their knowledge in a more real-life context. Problem-based learning (PBL) however encourages students to learn how …

E-Clinic System (Ecs) / Rossuryaindah Maarof, Maarof Rossuryaindah

Student Works (2000-2009)

As we move towards a knowledge-driven economy in 21 st century, healthcare providers are nowadays being forced to streamline operation through more efficient and cost effective office procedures. Automating these tasks results in time and materials, providing a positive return on investment. E-Clinic System (ECS) is windows based application built to assist clinical practitioners with their daily practice. The objective is to automate manual procedures that are currently practiced in a clinic. Prototyping Model is adopted to allow the designer to build a prototype, test and modify it, and through an iterative process to complete the final product. The development …

Face Recognition And Identification System (Facerec) / Khew Jye Huei, Jye Huei Khew

Student Works (2000-2009)

Face recognition is a technique to identify an individual by his/her physical characteristic and has been of interest to a growing number of researchers due to its applications on security. Several different algorithms have been proposed for computer recognition of human faces. It describes the implementation and functions of a working system that performs the recognition and identification of human faces using the implement algorithms. Java is use as programming language to develop the Face Rec system and Microsoft Access as the database to store and access the fa e images for the training set. Besides that, the system will …

Nitrification Investigation And Modeling In The Chloraminated Drinking Water Distribution System, Suibing Liu

Electronic Theses and Dissertations

This dissertation consists of five papers concerning nitrification in chloraminated drinking water distribution systems in a one and a half year field study. Seven finished waters were produced from different treatment processes and distributed to eighteen pilot distribution systems (PDSs) that were made pipes taken from actual distribution systems. Unlined cast iron (UCI), galvanized steel (G), lined cast iron (LCI), and PVC pipes were used to build the PDSs. All finished waters were stabilized and chloraminated before entering the PDSs. This dissertation consists of five major parts. (1) System variations of nitrates, nitrites, DO, pH, alkalinity, temperature, chloramine residuals and …

Sawtooth: Learning From Huge Amounts Of Data., Andres Sebastian Orrego

Graduate Theses, Dissertations, and Problem Reports (ETD)

Data scarcity has been a problem in data mining up until recent times. Now, in the era of the Internet and the tremendous advances in both, data storage devices and high-speed computing, databases are filling up at rates never imagined before. The machine learning problems of the past have been augmented by an increasingly important one, scalability. Extracting useful information from arbitrarily large data collections or data streams is now of special interest within the data mining community. In this research we find that mining from such large datasets may actually be quite simple. We address the scalability issues of …