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From Conic Intersections To Toric Intersections: The Case Of The Isoptic Curves Of An Ellipse, Thierry Dana-Picard, Nurit Zehavi, Giora Mann

The Mathematics Enthusiast

Starting from the study of the orthoptic curves of parabolas and ellipses, we generalize to the case of isoptic curves for any angle, i.e. the geometric locus of points from which a parabola or an ellipse are viewed under a given angle. This leads to the investigation of spiric curves and to the construction of these curves as an actual intersection of a self-intersecting torus with a plane. The usage of a Computer Algebra System facilitated this investigation.

Crown Of The Continent Magazine - Winter 2012, University Of Montana, Missoula

Crown of the Continent and the Greater Yellowstone Magazine

Table of Contents: Introduction: Memories of "The Bob" -- The Rocky Mountain Front: A Profile -- Frank F. Liebig -- Photographer Spotlight: Tony Bynum -- Weather Extremes in and around the Crown of the Continent -- American Pikas Little Chief Hares of the West -- Glacier's Six 10,000 Foot Summits: The First Ski Descent

Annual Reports Of The Town Officers Of Gilsum, New Hampshire For The Year Ending December 31, 2011., Gilsum Town Representatives

Gilsum, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.

Town Of Henniker, New Hampshire. 2011 Annual Report., Henniker Town Representatives

Henniker, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.

Annual Report For The Town Of Hebron, New Hampshire For The Fiscal Year Ending December 31, 2011., Hebron Town Representatives

Hebron, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.

Gilmanton, New Hampshire Annual Report For The Year Ending December 31, 2011., Gilmanton Town Representatives

Gilmanton, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.

Town Of Hanover, New Hampshire Annual Report For The Fiscal Year Ending June 30, 2012 And 2013 Town Meeting., Hanover Town Representatives

Hanover, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.

Annual Report Of The Selectmen/Auditors, Town Clerk/Tax Collector, Town Treasurer, Road Agent/Trustees Of The Trust Funds, Trustees Of The Library, Planning Board, Police And Fire Departments, Board Of Education, Town Of Hampstead, New Hampshire For The Year Ending December 31, 2011 Together With The Vital Statistics For The Year As Prepared By The Town Clerk., Hampstead Town Representatives

Hampstead, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.

Annual Reports For Hart's Location School Year Ending June 30, 2011 Town Year Ending December 31, 2011., Hart's Location Town Representatives

Hart's Location, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.

Hopkinton Annual Town And School Report 2011., Hopkinton Town Representatives

Hopkinton, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.

Biochar From Agricultural Byproducts For Improved Soil Quality And Carbon Sequestration, Djaafar Rehrah

Dissertations

Soil carbon sequestration has emerged as an innovative approach that may offer a low-risk and an efficient way to mitigate climate change and replenish soil fertility. In various agricultural production systems, byproducts are produced in significant amounts from crop residues such as pecan shells (PC), peanut shells (PS), and cotton gin (CG) that can be used to produce biochar and applied to agricultural soil first to sequester C and second to enhance plant growth by supplying and retaining nutrients, improving soil physical and biological properties. The objectives of this study were to (a) produce biochars from different byproducts (PC, PS, …

Community Gardening In New Hampshire From The Ground Up, Tina Burr, Yvonne Beran, Nancy Friese, Charlie A. French

Natural Resources & the Environment

No abstract provided.

Do Photoperiodic Changes In Melatonin Secretion Detrimentally Affect The Female Reproductive Cycle?, Riki Szlafrok

The Science Journal of the Lander College of Arts and Sciences

Melatonin, better known as "the hormone of darkness," is secreted by the pineal gland during the night and helps us fall asleep. Because its internal regulation depends on light, melatonin is part of chronobiology, the study of biological mechanisms and their adaptations to lunar and solar related rhythms (Klein et al. 1991). Therefore, photoperiod changes greatly impact melatonin concentration, influencing changes in neuronal and hormonal mechanisms of the photo neuro-endocrine systems, namely reproduction. Research has shown that a disruption in the circadian rhythm of melatonin due to photoperiod changes detrimentally affects the rhythmic function of the female reproductive cycle. Research …

Vanishing Cultures, Husna Haq

Syracuse University Magazine

No abstract provided.

Orange Matters, Tom Raynor, Jay Cox, Eileen T. Jevis, Christine Yackel, Susan Parks

Syracuse University Magazine

No abstract provided.

Hypolipidemic Agent Z-Guggulsterone: Metabolism Interplays With Induction Of Carboxylesterase And Bile Salt Export Pump, Dongfang Yang, Jian Yang, Deshi Shi, Da Xiao, Yi-Tzai Chen, Chris Black, Ruitang Deng, Bingfang Yan

Biomedical and Pharmaceutical Sciences Faculty Publications

Z-Guggulsterone is a major ingredient in the Indian traditional hypolipidemic remedy guggul. A study in mice has established that its hypolipidemic effect involves the farnesoid X receptor (FXR), presumably by acting as an antagonist of this receptor. It is generally assumed that the antagonism leads to induction of cytochrome P450 7A1 (CYP7A1), the rate-limiting enzyme converting free cholesterol to bile acids. In this study, we tested whether Z-guggulsterone indeed induces human CYP7A1. In addition, the expression of cholesteryl ester hydrolase CES1 and bile salt export pump (BSEP) was monitored. Contrary to the general assumption, Z-guggulsterone did not induce CYP7A1. Instead, …

Oil Spill Preparedness In The Baltic Sea Countries, Jonas Pålsson

Baltic Master II

The Baltic Sea is one of the world’s busiest waterways. An estimated 9 % of the world’s trade and 11 % of the world’s oil transportation passes through Baltic waters. It is estimated that this will increase by 64 % between 2003 and 2020. For example, the oil transportation has increased by 133 % between 1997 and 2008 and is now over 250 million tonnes per year. Plenty of shallows and narrow passages make parts of the Baltic Sea difficult to navigate. There are around 130 accidents each year, with 10 of these leading to pollution, mostly of oil. The …

In The Flow: A Mixed-Methods Phenomenological Study Of Optimal Experience In Adolescent Literacy, Susan E. Miles

Education Dissertations and Projects

This study is concerned with the flow experience of students while involved in independent reading. Based on Csikszentmihalyi's theory of flow, this experience is one of total engagement to the point of immersion involving deep concentration; enjoyment; and a loss of a sense of time, place, and self.

This is a quan>Qual study, which began with a quantitative measurement to determine a criterion sampling, followed by the primary research method, a transcendental phenomenology of flow during voluntary, independent reading. This primary research method was used due to the lack of research available on flow in the field of literacy …

Impact Of Freshman Academy Experiences On Student Academic Intrinsic Motivation, Shirley C. Sealy

Education Dissertations and Projects

This dissertation was designed to explore the transition of a group of ninth-grade students into a large rural upstate South Carolina high school. The primary focus was to ascertain the students' levels of academic intrinsic motivation toward English, math, science, history, and their general orientation toward school learning, and to explore those freshman academy experiences that the students felt most directly impacted these attributes. The freshman academy at this school was implemented in 2006 as a district initiative to strengthen the transition to high school and ultimately increase the graduation rate.

This was a mixed methods case study in which …

State Of The Northwest Arkansas Region 2012 Report, Katherine A. Deck, Mervin Jebaraj

State of the Northwest Arkansas Region Report

The State of the Northwest Arkansas Region Report is an annual publication that serves as a tool for evaluating the economic performance of the region in comparison with those peers that are most likely to compete with Northwest Arkansas by virtue of a similar industry mix or geographic proximity. As a player in the global economy, Northwest Arkansas has more to off er than superior performance in traditional economic development categories such as employment, unemployment, establishment growth, and income. This region showcases strengths in newer categories of economic development like the knowledge-based sectors and quality of life indicators such as …

Neurodevelopmental Consequences Of Sub-Clinical Carbon Monoxide Exposure In Newborn Mice, Ying Cheng, Adia Thomas, Feras Mardini, Shannon L. Bianchi, Junxia X. Tang, Jun Peng, Huafeng Wei, Maryellen F. Eckenhoff, Roderic G. Eckenhoff, Richard J. Levy

Anesthesiology and Critical Care Medicine Faculty Publications

Carbon monoxide (CO) exposure at high concentrations results in overt neurotoxicity. Exposure to low CO concentrations occurs commonly yet is usually sub-clinical. Infants are uniquely vulnerable to a variety of toxins, however, the effects of postnatal sub-clinical CO exposure on the developing brain are unknown. Apoptosis occurs normally within the brain during development and is critical for synaptogenesis. Here we demonstrate that brief, postnatal sub-clinical CO exposure inhibits developmental neuroapoptosis resulting in impaired learning, memory, and social behavior. Three hour exposure to 5 ppm or 100 ppm CO impaired cytochrome c release, caspase-3 activation, and apoptosis in neocortex and hippocampus …

Where Are All The Citizens Suits ?: The Failure Of Safe Drinking Water Enforcement In The United States, Christine L. Rideout

Health Matrix: The Journal of Law-Medicine

No abstract provided.

Applying Geophysics And Geochemistry To Understand Middle Woodland Site Spatial Organization At The Northwood Site, Vigo County, Indiana, Tiffany Grossman

All-Inclusive List of Electronic Theses and Dissertations

The Northwood site (12Vi194) in northern Vigo County is attributed to the Late Middle Woodland culture known as Allison-LaMotte. Previous studies at other Allison-LaMotte sites are inconclusive regarding the village structure of this culture. While some studies identify a habitation zone surrounding a circular plaza, other Allison-LaMotte sites lack an observable spatial layout to the site. Magnetometry studies completed at the Northwood site in 2005 reveal a possible semi-circular community pattern with a central plaza. This study employed the 2005 magnetometer survey data, magnetic susceptibility, ground penetrating radar (GPR), and geochemical analyses to confirm the hypothesized site organization. Magnetic data …

Holocene Landscape Evolution Of The Ohio River Valley From Knob Creek To Rosewood Bottom, Rego Kathryn De

All-Inclusive List of Electronic Theses and Dissertations

Rivers and floodplain environments have provided human settlements with resources for thousands of years. By understanding how rivers shape the land around them, we can use landforms to reconstruct ancient fluvial processes and to examine how they have conditioned the way humans interact with their environment. This study investigates the Lower Ohio River during the Holocene. During this period, Midwestern landscapes were adjusting to a variety of processes, including millennial-scale climate change involving the transition from a glacial to an interglacial environment. At the same time, Archaic hunter-gatherers adopted a settlement strategy that favored large river valleys. The cause of …

Under The Influence Of Large Woody Debris: A Survey Of The La Crosse River In The Upper Midwest Driftless Area, Adam Prise

All-Inclusive List of Electronic Theses and Dissertations

Streams are dynamic environments driven by the force of gravity and shaped by local climate, geology, and vegetation. Large woody debris (LWD) can have important influences on stream processes. The main influence of LWD on these systems is a resistance to flow; this added roughness induces a multitude of channel adjustments. Despite the importance of LWD, streams have been heavily managed by humankind, often involving the removal of debris to improve flow. Recent studies have highlighted the significance of large woody debris in mountain streams, particularly in the Pacific Northwest of the United States and Canada. However, there has been …

The Role Of Fine-Scale Habitat Associations In Structuring Spider Assemblages: Determinants Of Spatial Patterns In Community Compostion, Stephanie M. Cobbold

Green Canyon Environmental Research Area, Logan Utah

No abstract provided.

Annual Report Of The Town Officers For The Year Ending December 31, 2011., Easton Town Representatives

Easton, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.

Unity, New Hampshire Annual Report Of The Selectmen And Other Town Officers Year Ending December 31, 2011., Unity Town Representatives

Unity, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.

Annual Report Of The Town Of Winchester And Winchester School District For Fiscal Year July 1, 2011 To June 30, 2012., Winchester Town Representatives

Winchester, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.

2011 Annual Town Report Alton, New Hampshire., Alton Town Representatives

Alton, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.