Digital Commons Network^™

Assessment Of Potential Environmental Impacts Of Nature-Based Tours Originating Within Clark County, Nevada, Beth Domowicz

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this thesis was to assess the potential magnitude of negative environmental damage of nature-based tours originating in Clark County, Nevada. An ordinal ranking system was used for assessment of five variables. These variables were resource use, noise pollution, soil degradation, vegetation degradation, and wildlife disturbance. There were two proposed answers. The first was that as distance increased, negative tour impact would increase. This was not supported, since tours had high impacts for destinations that were close by and far away. The second was that most tours were not causing high damage to the environment. This hypothesis was …

Writing In A Second Grade Math Class, Tammy Bakken

Graduate Research Papers

Writing in math has given me a much better benchmark-driven curriculum. I know more clearly how to help students accomplish math benchmarks. I used to have a separate time for the students in my classroom to write and a separate time for my students to do math. Nearly two years ago, I had the idea of writing in math. I read what other teachers had tried and I tried to include more writing in math. The results have confirmed my belief that writing in math is a worthwhile practice. Writing in math gave my students a greater understanding of math. …

A Comparative Analysis Of Early Childhood Education In Kenya And The United States Of America : Kenya's Social And Economic Constraints, Peter Kibet Koech

Graduate Research Papers

This study examined Early Childhood Education in Kenya and the United States of America. The development of Early Childhood Education in Kenya was discussed through detailed analysis of social and economic constraints. Conclusions were drawn from the available literature; also, suggestions and relevant recommendations were made to help improve Early Childhood Education in Kenya.

The Benefits And Liabilities Of Ability Grouping In Elementary School Classrooms, Jill Miller

Graduate Research Papers

Ability grouping, the practice of homogeneously grouping students for instruction, is topic of much debate in education. The purpose of this paper is to identify advantages and disadvantages of ability grouping for students as well as for teachers in the elementary school setting through research of literature available. Further, implications of ability grouping as a method of instruction are discussed.

Using Computer-Based Instruction To Strengthen Student Achievement In The Middle School Mathematics Classroom, Anne Nedved

Graduate Research Papers

According to the National Research Council (2001), students in mathematics should be able to understand mathematics, compute fluently, apply concepts in a problem-solving manner, reason logically, and engage with mathematics in a sensible, doable, and useful manner.

The goal of this project is to develop a curriculum guide for the implementation of the Computer Assisted Instruction program PLATO into the current curriculum of the Council Bluffs Community School District. Students are more immersed in technology than ever before and teachers need to embrace the challenge to create an environment with ample technological materials to actively involve and retain student's interests …

Enhancing Student Achievement In The Middle School Mathematics Classroom Using Computer-Based Instruction, Anne Nedved

Graduate Research Papers

Computer-based instruction (CBI) is one tool that has enhanced curriculum to meet individual learning needs and enable students to succeed in the mathematics classroom. CBI creates an environment centered on individualized, flexible learning where students can be more self-directed and independent.

The importance of this review is to cite specific research and studies to determine the effectiveness of such computer-based applications in the mathematics classroom in relation to student achievement and professional development. The most productive and positive integration of CBI in terms of student achievement and motivation in the classroom was due to the professional development and training of …

Evaluating The Effectiveness Of Technology On Learning In K-12 Education, M. Ann Nicholson

Graduate Research Papers

Demonstrating an impact on student learning due to technology innovations is extremely important in K-12 education. Billions of dollars have been spent on technology in education in the past several years. Stakeholders are demanding to know if this investment is impacting student learning and achievement. However, the assessment of technology in K-12 education is complicated due to the changing nature of technology and all of the variables involved in education. The purpose of this paper is to discuss the rationale for evaluating technology.in education, analyze the issues involved in evaluation, review current research on the impact of technology on student …

The Effect Of Year-Round Education On Student Achievement, Rebecca Okerlund

Graduate Research Papers

The year-round calendar has generated interest among many educators as a way to increase student achievement by reducing learning loss that often occurs during long summer vacations. This paper explores various assertions made about year-round education (YRE) as it compares with traditional-calendar education (TCE). Achievement results in the core subjects of math and reading are discussed and compared in school districts.that have utilized either a multi-track, a single-track, or a traditional 9-month calendar:

The outcome of this review indicates mixed results regarding YRE and student achievement.Because many of the studies contained incomplete data and confounding variables such as length of …

Design Of A Tem-Cell With Increased Usable Test Area, Kresimir Malaric, Juraj Bartolic

Turkish Journal of Electrical Engineering and Computer Sciences

Transversal electromagnetic mode cells (TEM-cells) are used for electromagnetic compatibility measurements (emission and immunity), and for biomedical applications. Over the years, higher and higher frequencies are being used, which demands smaller transmission structures in order to obtain the homogeneous field distribution due to resonance. Such resonance destroys the TEM field, introducing higher order modes. The goal was to design the TEM-cell for GSM frequencies that will have a larger area with a homogeneous field used for testing, while still obtaining the characteristic impedance. Commercial TEM-cells used for frequencies of 900 MHz have only 2 cm in height available for testing, …

Theory Of Antisymmetric Tensor Fields, Valeri Dvoeglazov

Turkish Journal of Physics

It has long been claimed that the antisymmetric tensor field of the second rank is pure longitudinal after quantization. In my opinion, such a situation is quite unacceptable. I repeat the well-known procedure of the derivation of the set of Proca equations. It is shown that it can be written in various forms. Furthermore, on the basis of the Lagrangian formalism I calculate dynamical invariants (including the Pauli-Lubanski vector of relativistic spin for this field). Even on the classical level, the Pauli-Lubanski vector can be equal to zero after applications of well-known constraints. The importance of the normalization is pointed …

On Complex Permittivity Of Dilute Random Binary Dielectric Mixtures In Two-Dimensions, Eni̇s Tuncer, Emre Tuncer

Turkish Journal of Physics

Influence of the number of particles considered in numerical simulations on the complex dielectric permittivity of binary dilute dielectric mixtures in two-dimensions are reported. In the simulations, dodecagons (polygons with 12-sides) were used to mimic disk-shaped inclusions. Using such an approach we were able to consider 16^2 particles in a unit-square. The effective dielectric permittivity of the mixtures were calculated using the finite element method at two different frequecies which were much higher and lower than the characteristic relaxation rate of the Maxwell-Wagner-Sillars polarization. The results were compared to an analytical solution. It was found that the permittivity values at …

Decoherence In Ballistic Mesoscopic Interferometers, Georg Seelig, Sebastian Pilgram, Markus Büttiker

Turkish Journal of Physics

We provide a theoretical explanation for two recent experiments on decoherence of Aharonov-Bohm oscillations in two- and multi-terminal ballistic rings. We consider decoherence due to charge fluctuations and emphasize the role of charge exchange between the system and the reservoir or nearby gates. A time-dependent scattering matrix approach is shown to be a convenient tool for the discussion of decoherence in ballistic conductors.

Preface, Erhan Altunel, Serdar Akyüz

Turkish Journal of Earth Sciences

No abstract provided.

Kinematics Of The Middle East And Eastern Mediterranean Updated, Rob Westaway

Turkish Journal of Earth Sciences

No abstract provided.

The Alignment Of Earthquake T-Axes With The Principal Axes Of Geodetic Strain In The Aegean Region, Philip England

Turkish Journal of Earth Sciences

The relation between the orientations of the T-axes of earthquakes occurring within the continental crust of the Aegean, and the orientations of the principal axes of geodetic strains is examined. It is shown that the T-axes align with the principal horizontal extension axes to a degree that is unlikely to have arisen by chance, and it is concluded that the seismic deformation of the region is consistent with the response of a quasi-continuous medium to a stress regime that is organised on a regional scale.

Monitoring The Kinematics Of Anatolia Using Permanent Gps Network Stations, Onur Lenk, Ali̇ Türkezer, Semi̇h Ergi̇ntav, Ali̇ İhsan Kurt, Alpay Belgen

Turkish Journal of Earth Sciences

The establishment and promotion of three-dimensional geodetic networks supported by continuous Global Positioning System (GPS) data are capable of yielding valuable data in order to enable regional realisation of the International Terrestrial Reference Frame (ITRF) and monitor deformation of the lithosphere. Providing 24-hour continuous data in connection with International GPS Service (IGS) global stations, the Turkish Permanent GPS Network (TPGN) was established in 1999. The main goal of establishing these network stations is to provide adequate information on such an active area, where the collision between African, Arabian and Eurasian plates is occurring. An additional aim is continuous monitoring by …

The Effects Of Hands-On Science On Student Achievement, Christopher Andrew Gersitz

Graduate Research Papers

In recent years, many major science curriculum development projects have promoted hands-on, practical activities as an effective and an enjoyable way for students to learn science content (Hodson, 1990). After a quarter of a century, the phrase "hands-on science" is part of the everyday vocabulary of science educators, particularly those at the elementary and middle school levels (Flick, 1993).

The Study Of The Role And Effects Of Vocational Education On The Local Economic And Social Development In China, Chich-Jen Shieh

Graduate Student Dissertations, Theses, Capstones, and Portfolios

This study examined the relationship between vocational education and the development of regional social economy, as related to the background of the current reform of the vocational and educational system in China. It also reviewed and analyzed the reform of vocational educational systems in six regions in China. In particular, this study investigated the interrelationship between labor force resources, urban and rural vocational education and the development of social economy. The special phenomena accompanying vocational education and the economic development were illustrated. Research explored the importance and impact of vocational education on the economic and social development.

From this study, …

Best Practices In Teaching Reading Fluency In The Elementary Classroom, Tina Schneider

Graduate Research Papers

The focus of this review of literature was Best Practices for teaching reading fluency in the elementary classroom. Research shows that students' reading fluency rates need improvement. Teachers must create a classroom environment that fosters reading fluency and use research based teaching practices to improve students' reading fluency. Journal articles were selected that addressed best practices in teaching reading fluency in the elementary classroom. Reading fluency influences the academic success students attain at school and therefore it is a skill which must be taught. Because best practices have a positive impact on students' reading fluency rates, it is recommended that …

Utilizing Online Literature Circles To Improve Reading Comprehension, Mark Schuldt

Graduate Research Papers

Literature circles are an important part of a balanced reading program. They require students to work with others to become independent problem solvers. With the introduction of online literature circles, students get the added experience of using technology in an authentic learning situation. As a result of this technology integration, students' reading comprehension and proficiency with computers will improve.

The importance of this project is to provide teachers with curriculum that is supported by technology. Specific research and practice is sited to support the rationale of combining technology and reading. The most significant findings include the development of the lower …

Best Practices In Balanced Early Literacy Instruction, Suzanne Yoder

Graduate Research Papers

In order to provide the best literacy instruction for the nation's earliest learners, it is crucial that best practice principles, as defined by Steven Zemelman, Harvey Daniels, and Arthur Hyde, be adhered to. These principles include all aspects of what have been found to be the teaching methods and strategies most conducive to successful early literacy acquisition. The purpose of this paper is to examine the historical and current trends in literacy education, discuss and explain the best practice principles, and to relate these principles to a current balanced literacy approach. Further, activities and lessons are presented which could be …

Educating African American Children : Breaking The Silence, Bernadette Thomas

Graduate Research Papers

It is inappropriate to view all children as the same, even when they may look very similar or share a cultural background. Differences exist in and among all racial and ethnic groups at all social levels. It would be dangerous to read information on diversity and apply it as if all people in that particular group are the same. Cultural information can promote understanding and insight for all. It is necessary to understand the challenges and issues that children of diverse backgrounds are faced with in order to facilitate positive change and resiliency in the counseling process. The author provides …

Using Technology To Encourage Critical Thinking, Tracy Wilkins

Graduate Research Papers

As technology continues to change educators must be willing to make adjustments in their teaching strategies and make an effort to make technology a permanent part of the curriculum. Critical thinking consists of organizing knowledge in a meaningful manner so it can easily be used by the learner. Those applying critical thinking are more motivated and perform at a higher level of performance than students using lower level thinking skills. Technology continues to become a bigger part of education and teachers need to use databases, spreadsheets, and concept maps as tools to facilitate critical thinking. Educators need to be aware …

Enhancing Student Learning Styles Through The Use Of Technology, Mark A. Dugger

Graduate Research Papers

The multiple learning styles of students have in the last few years become a major topic of concern for all educators. Experience and time are valuable learning tools assisting teachers in developing an understanding of these learning styles. This review pursues the importance of considering student learning styles when incorporating technology within an existing curriculum. Research studies provide supporting evidence that a technology-rich environment promotes collaborative, project-based learning, which in tum has a positive effect on learning styles.

Criticism Of Middle School Curriculum Integration : A Review Of The Literature, Carrie Even

Graduate Research Papers

This literature review looks at curriculum integration at the middle school level. The literature predominantly has reflected curriculum integration as a practice that benefits middle school students, but it has received criticism as well. Some of the criticism includes the following: time needed for planning, teaming of teachers, student interest, standards and benchmarks being subject specific, and the lack of critical information in specific content areas. This review of the literature examines the criticism to understand whether curriculum integration is beneficial for students.

Recommendations about the continued use of curriculum integration at the middle school level include the following: continued …

Removal Of Sustained Casing Pressure Utilizing A Workover Rig, Kevin Soter

LSU Master's Theses

This thesis will analyze the techniques used during the 1989 and 1990 workover programs as well as subsequent operations in 1991/1992. It will also present the techniques and results of the most recent 1999 workover program undertaken to alleviate the most persistent sustained casing pressure (SCP) in a mature Gulf of Mexico field. An extensive literature review is included to better illustrate the complexity of the issues involved and possible SCP mechanisms. The field was drilled during the 1980’s and SCP has been prevalent in some cases previous to initial completion operations. Previous remedial programs resulted in limited success in …

Pulsed River Flooding Effects On Sediment Deposition In Breton Sound Estuary, Louisiana, Katherine Wheelock

LSU Master's Theses

Louisiana's deltaic coast is a dynamic sedimentary environment made vulnerable by Mississippi River channelization, which restricts freshwater, sediment, and nutrient inputs to adjacent estuaries. Freshwater diversions now reconnect some estuaries with historic fluvial sources, like Breton Sound basin, which receives Mississippi River suspended loads through the Caernarvon freshwater diversion. The project objectives were to quantify short-term sediment accumulation using sediment traps, evaluate sediment trap effectiveness, and compare long-term deposition using feldspar horizon markers and 210Pb dating to the annual sediment trap deposition. Magnitude and variations of sediment deposition at 14 sites were compared during an 18-month study in the upper …

Soil Particle-Size Analysis: A Comparison Of Two Methods, Lauren Williams-Caudle, Kristofor Brye, E. Moye Rutledge

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Knowing the proportion of particle sizes in soil is important to soil scientists and agronomists. The mixture of sand, silt, and clay influences water movement, solute transport, nutrient retention, and many other properties and processes in soil. The standard method for particle size determination is a somewhat time-consuming process. An equally accurate but shorter method would be appealing for many reasons. The objective of this study was to compare a standard method of particle-size analysis using a hydrometer to an abbreviated hydrometer method, which, instead of 12 h for the standard method, requires about 3 h to complete. Twenty-four soil …

Characterization Of The Interaction Of Gamma Cyclodextrin With Single-Walled Carbon Nanotubes, Gordon Chambers, Clodagh Carroll, Garrett Farrell, Alan Dalton, Mary Mcnamara, Marc In Het Panhuis, Hugh Byrne

Articles

In this study a number of composite-like samples of ç-cyclodextrin and HiPco carbon nanotubes were prepared. The first sample was prepared by a simple grinding procedure, which has been reported to cut HiPco carbon nanotubes. The other samples were obtained via a refluxing procedure analogous to similar studies on other fullerenes and ç-cyclodextrin. The samples were analyzed using absorption and Raman spectroscopy, and differential scanning calorimetry. The results presented show clear evidence of an intermolecular interaction between ç-cyclodextrin and single-walled carbon nanotubes.

Factors Affecting Ammonium Uptake In Streams - An Inter-Biome Perspective, Jackson R. Webster, Patrick J. Mulholland, Jennifer L. Tanks, H. Maurice Valett, Walter K. Dodds, Bruce J. Peterson, William B. Bowden, Clifford N. Dahm, Stuart Findlay, Stanley V. Gregory, Nancy B. Grimm, Stephen K. Hamilton, Sherri L. Johnson, Eugenia Marti, William H. Mcdowell, Judy L. Meyer, Donna D. Morrall, Steven A. Thomas, Wilfred M. Wollheim

Faculty Publications

The Lotic Intersite Nitrogen experiment (LINX) was a coordinated study of the relationships between North American biomes and factors governing ammonium uptake in streams. Our objective was to relate inter-biome variability of ammonium uptake to physical, chemical and biological processes. 2. Data were collected from 11 streams ranging from arctic to tropical and from desert to rainforest. Measurements at each site included physical, hydraulic and chemical characteristics, biological parameters, whole-stream metabolism and ammonium uptake. Ammonium uptake was measured by injection of '5~-ammonium and downstream measurements of 15N-ammonium concentration. 3. We found no general, statistically significant relationships that explained the variability …