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Increasing Student Engagement In The Secondary Math Classroom, Chantell Holloway Walker
Increasing Student Engagement In The Secondary Math Classroom, Chantell Holloway Walker
LSU Master's Theses
This thesis reports on a professional development package developed by the author to help three teachers increase the level of student engagement in their math classrooms. There were three phases: 1) initial presentation of strategies and sample lessons, 2) classroom implementation, 3) reflection and evaluation. As a result of the professional development, the Louisiana Compass Teacher Evaluation Rubric scores of the teachers improved in the area of student engagement. This thesis can be used as a guide for principals or instructional specialists who wish to provide professional development for small groups of teachers, with a focus on increasing student engagement.
Sub-Marine Sediment Instability Near Southwest Pass Of The Mississippi River: Evidence Of Mass Movements From Raciochemistry And Other Proxies, Gregory Paul Keller
Sub-Marine Sediment Instability Near Southwest Pass Of The Mississippi River: Evidence Of Mass Movements From Raciochemistry And Other Proxies, Gregory Paul Keller
LSU Master's Theses
Mass wasting events are an important geomorphic control on the Mississippi River Delta Front. Short multicores (<50cm) and longer gravity cores (<3m) were collected seaward of the Southwest Pass of the Mississippi River Delta and were analyzed to assess the frequency, extent, and potential causes of submarine mass wasting events. Cores were analyzed for radionuclide activity, grain size, and density at 2cm resolution. Short-term sedimentation rates calculated from 7-Be are 2-16cm/y, while longer-term accumulation from 210-Pb are only 1.3-7.3 cm/y. In most cores, 210-Pb activity steadily decreases downcore without displaying a “stairstep” nature. However, seven cores have layers of low 210-Pb activity stratigraphically above layers with higher activity. In a gravity core from a mudflow gully, 210-Pb steadily decreases for the upper 70 cm before stabilizing for the remaining 150 cm. Clay content generally ranges between 25-40% and sand ranges between 5-15% with silt making up the rest of each sample. Sediment accumulation rates derived from 210-Pb in the short cores indicate that proximity to the river mouth has stronger influence than depositional environment (mudflow gully, depositional lobe, prodelta). This finding may be explained by rapid sedimentation rates coupled with a reduced tropical cyclone activity over the delta in the last seven years (2006-2013) which is a known cause of mass wasting events. The regions of decreased 210-Pb activity may be evidence of scavenging effects of plume sedimentation because they do not correspond with decreases in clay fraction. The layer of homogenized activity below 70cm in the gully core corresponds with a layer of decreased density. This layer occurs at a depth equivalent to 9-18 years, indicating mixing on a decadal scale from mudflows. These results may be explained by a lack of recent mass failures corresponding with lulls in tropical cyclone activity over the delta, preceded by a period of more active hurricane-driven mudflow activity.
Hydrological Influences On Catahoula Lake In An Altered Floodplain, Lincoln Dugue
Hydrological Influences On Catahoula Lake In An Altered Floodplain, Lincoln Dugue
LSU Master's Theses
Floodplain lakes in floodplains of large rivers undergoing intensive alterations are subject to hydrologic alteration. One example is in the Lower Mississippi Alluvial Valley (LMAV) and pivotal habitat for wildlife. Catahoula Lake has experienced hydrologic regime alterations over the past ~150 years that may be contribute to changes in the habitat with expansion of woody plants. A Diversion Channel was constructed in 1972 to provide the natural, annual de-watering of the lake to maintain its ecological integrity, but ecologic changes are still occurring. Our general goal is to understand the hydrologic regime of the lake, particularly the historical hydrologic regime …
Impact Of Multileaf Collimator Configuration Parameters On The Dosimetric Accuracy Of 6-Mv Intensity-Modulated Radiation Therapy Treatment Plans, Nicholas Colin Petersen
Impact Of Multileaf Collimator Configuration Parameters On The Dosimetric Accuracy Of 6-Mv Intensity-Modulated Radiation Therapy Treatment Plans, Nicholas Colin Petersen
LSU Master's Theses
Purpose: To improve the dosimetric accuracy of intensity modulated radiation therapy (IMRT) dose distributions as calculated by the treatment planning system (TPS) by optimizing the parameters that govern multileaf collimator (MLC) transmission and rounded leaf offset. Methods: The MLC leaf transmission was optimized based on measurements made with ionization chambers and radiographic film. The rounded leaf offset table was optimized by measuring the radiation field edge as a function of leaf bank position with an ionization chamber in a water scanning tank and comparing the location to TPS equivalent dose calculations. Optimizations were validated by performing IMRT quality assurance (QA) …
Dosimetric Advantages Of Personalized Phantoms For Quality Assurance And Research In Radiation Dose Measurements, Andrew Michael Halloran
Dosimetric Advantages Of Personalized Phantoms For Quality Assurance And Research In Radiation Dose Measurements, Andrew Michael Halloran
LSU Master's Theses
Background: Phantoms have been in use in medical and health physics for decades, serving as a surrogate for human tissue in several different applications. In radiation dose measurements, anthropomorphic phantoms are designed with tissue substitute materials to mimic both the elemental compositions and anatomical structures of the human body. In some cases the performance of anthropomorphic phantoms for personalized measurements is severely limited by the use of reference anatomy in the geometric design. 3D printing could potentially be used to overcome some of these shortcomings by enabling rapid fabrication of personalized phantoms for individual patients based on radiographic imaging data. …
A Study Of Resiliency In New Orleans Neighborhoods Ten Years After Hurricane Katrina, Paul Ramnauth Algu
A Study Of Resiliency In New Orleans Neighborhoods Ten Years After Hurricane Katrina, Paul Ramnauth Algu
LSU Master's Theses
Hurricane Katrina made landfall on August 29, 2005, flooding over eighty percent of the Greater New Orleans area and causing a mass exodus of the local population. Statistical analysis was used to quantify recovery at a neighborhood level and answer the following questions: What is the recovery rate of New Orleans neighborhoods ten years after Hurricane Katrina? What factors account for variation in recovery rates among neighborhoods? Six neighborhoods in Orleans Parish were selected for further study based on their unique geographical and recovery metrics. Recovery rates among the seventy-two neighborhoods were based on a comparison of United States Postal …
Augite In Komatiitic Basalts: A Study Of The Mobility Of Trace Elements During Rock Alteration, Alesha C. Morabito
Augite In Komatiitic Basalts: A Study Of The Mobility Of Trace Elements During Rock Alteration, Alesha C. Morabito
LSU Master's Theses
Komatiitic basalts are ultramafic rocks formed from volcanic liquids containing less than 18 wt.% magnesium oxide that can be linked, spatially, geochemically and texturally to komatiites. Archean komatiites and komatiitic basalts are critical to models of early Earth’s mantle evolution. Major and trace elements in these rocks are poorly preserved due to early sub-seafloor alteration with superimposed regional metamorphism: in particular the alkali, alkaline earths, and other elements with low valence numbers. Current analytical methods focus on analyzing whole rock, fresh olivines and melt inclusions to evaluate elemental concentrations and for petrogenetic studies. Although these methods establish elemental concentrations, REE, …
Advanced Math Curriculum - Act Prep And Pre-College Algebra, Lauren Louise Morris
Advanced Math Curriculum - Act Prep And Pre-College Algebra, Lauren Louise Morris
LSU Master's Theses
The purpose of this thesis was to create a non-traditional Advanced Mathematics course paired with Math XL® for School (MXL) for senior-level students with low ACT Math scores. The Advanced Math course was created with the purpose of helping students increase their ACT Math scores and preparing them for first-year college math, College Algebra. The course was taught at a private high school in Louisiana for the 2014-2015 school year and is attached to this thesis as an appendix. Upon completion of this course, the participating students achieved an average increase of 3.1 points in their ACT Math scores. After …
Microtopographic Ecohydrology Of A Forested Wetland In Louisiana, Yu-Hsin Hsueh
Microtopographic Ecohydrology Of A Forested Wetland In Louisiana, Yu-Hsin Hsueh
LSU Master's Theses
Coastal wetland forest ecosystems rely on the intimate interactions of hydrology, salinity, and coastal forest vegetation. The boundary between marsh and forest is often where hummock-swale terrain exists. It remains unknown as to the degree to which trees may experience varied salinity level within hummocks provided with freshwater flux. This study examined the hydrological regime of the hummock-swale terrain that resulted in salinity variation and whether freshwater source exists for baldcypress. Natural tracers of stable isotopes of water and salinity were applied to understand the sources of water. To better examine the tracers used, we conducted several experiments to gain …
A Study Of Mathematical Equivalence: The Importance Of The Equal Sign, Christy De'sha Duncan
A Study Of Mathematical Equivalence: The Importance Of The Equal Sign, Christy De'sha Duncan
LSU Master's Theses
The purpose of this study was to investigate students’ understanding and knowledge of the equal sign, so that instructional resources could be identified to improve student’s conceptual understanding about mathematical equivalence. A test, consisting of a combination of items taken from previous studies, as well as items developed by the researchers, was designed to gauge students’ understanding of the equality symbol. The test was administered to 54 seventh-graders in Spring 2015. The results of the test indicated a significant number of students in our district have a limited understanding of mathematical equivalence. This papers ends with some suggested activities recommended …
Pytracks: A Tool For Visualizing Fish Movement Tracks On Different Scales, Ross Fossum
Pytracks: A Tool For Visualizing Fish Movement Tracks On Different Scales, Ross Fossum
LSU Master's Theses
A fundamental problem in conservation biology and fisheries management is the ability to make educated decisions based on the data collected. Fish populations and their spatial distributions need to be represented accurately for conversation efforts and management decisions. Methods such as modeling, surveying, and tracking can all be used to collect data on a particular fishery. To include the movement patterns in conservation and management, one needs to work with and process fish tracking data or data exported from fish movement simulation models. This data can often be difficult to process. This topic is becoming increasingly popular as technology to …
Planktonic Influence On The Toxicity Of Hewafs (High-Energy Water Attenuated Fractions), Erin Elizabeth Saal
Planktonic Influence On The Toxicity Of Hewafs (High-Energy Water Attenuated Fractions), Erin Elizabeth Saal
LSU Master's Theses
The Deep Water Horizon oilrig explosion led to the release of 6.8 ± 1.7 x 108 kg or 4.9 million barrels of petroleum hydrocarbons into the Gulf of Mexico. The spill persisted from the end of April to mid July 2010 affecting a significant portion of the Gulf coast. The effects of this spill are being studied in labs across the country, and this thesis investigated high-energy water accommodated fractions (HEWAFs) as a potential tool for use in this effort. Water accommodated fractions (WAFs) are mediums containing only the fraction of petroleum that remains in aqueous phase after a mixing …
The Correlation Between Parental Involvement And Student Academic Achievement, Damien Ramon Antoine
The Correlation Between Parental Involvement And Student Academic Achievement, Damien Ramon Antoine
LSU Master's Theses
This study investigates whether or not there is a correlation between parental involvement and student academic achievement. A sample of 103 students at Madison Preparatory Academy and CSAL Middle School (CSAL, Inc) were tested for correlations between the degree with which their parents are engaged in their academic lives and the success that they achieve as a result. Small correlations were found to exist between some of the variables tested. The test group consisted of a group of high school students from Madison Preparatory Academy (MPA) and their siblings who attended CSAL Middle which is the feeder school for MPA. …
Z-Spectral Modeling For Magnetization Transfer Ratio Asymmetry Calculations In Chemical Exchange Saturation Transfer Mri At 3 Tesla, Ryan Nicholas Schurr
Z-Spectral Modeling For Magnetization Transfer Ratio Asymmetry Calculations In Chemical Exchange Saturation Transfer Mri At 3 Tesla, Ryan Nicholas Schurr
LSU Master's Theses
Chemical exchange saturation transfer (CEST) and magnetization transfer (MT) are types of magnetic resonance imaging (MRI) experiments in which contrast is based on the transfer of magnetization from selectively saturated solute or macromolecular protons to bulk water protons. These processes offer insight into the chemical composition of tissue and are quantified by the asymmetry of the magnetization transfer ratio (MTRasym). This study was to develop a Z-spectral curve fitting procedure based on the underlying physics of CEST-MRI from which MTRasym values can be calculated and applied to distinguish healthy tissue from cancer. Z-spectra were collected from CEST-MR images of a …
Rare Earth Element Patterns In Conodont Apatite From The Upper Ordovician: Testing Enrichment Sources And Possible Oceanographic Changes, Cody Christian Schulte
Rare Earth Element Patterns In Conodont Apatite From The Upper Ordovician: Testing Enrichment Sources And Possible Oceanographic Changes, Cody Christian Schulte
LSU Master's Theses
The Mohawkian series of the Middle Late Ordovician was a time of great lithological and faunal changes that coincide with a positive ä13C excursion known as the Guttenberg Isotopic Carbon Excursion (GICE). Two prevailing hypotheses have been proposed to explain the cause of these changes. The “cold-water” hypothesis suggests that global cooling caused the tropical belt to shrink and cold water to invade the epicontinental sea while the “tectonic-forcing” hypothesis suggests that increased weathering rates led to basinal deepening, resulting in cooler oceanic waters invading the midcontinent sea. This study tests if regional tectonics caused by the Taconic Orogeny led …
Impact Of Exposure To Weathered Crude Oil And Accumulation Of Pahs In Crawfish (Procambarus Clarkii), Brittany Lynn Chichester
Impact Of Exposure To Weathered Crude Oil And Accumulation Of Pahs In Crawfish (Procambarus Clarkii), Brittany Lynn Chichester
LSU Master's Theses
The number of pipelines transporting crude oil and other refined petroleum products across the U.S. has increased 15.4% from 2004 to 2013. In Louisiana, over 3,450 miles of liquid petroleum pipelines crisscross the state. In January 2013, crude oil was accidentally released from an underground pipeline into Bayou Sorrel, Louisiana. This freshwater wetland is located within the Atchafalaya River Basin which is home to large populations of wild crawfish that could be impacted by the crude oil released. This study aims to assess the potential lethal impacts that crude oil spill may have produced in adult crawfish (P. clarkii) and …
Tracing Sediment In The Subsurface Using Beryllium-7: Green River Basin, Ky, Caroline Adams Broderick
Tracing Sediment In The Subsurface Using Beryllium-7: Green River Basin, Ky, Caroline Adams Broderick
LSU Master's Theses
As water flows through areas of limestone, karst inevitably develops, creating sinking streams and sinkholes that transport alumino-silicate particles from the surface into the subsurface. Sediment budget studies on short term scales through karst are rare. Thus, a feasibility study using beryllium-7 (7Be), which attaches to soil particles and can be used as a short-term (2-3 month) tracer of the movement of fine-grained sediment in karst was investigated. Sediment samples were collected from a karstic catchment within Green River basin, Kentucky, both on the surface and in the subsurface along a cave stream. Samples were collected prior to and immediately …
Phylogenetic Tree Construction For Starfish And Primate Genomes Via Alignment Free Methods, Ambujam Krishnan
Phylogenetic Tree Construction For Starfish And Primate Genomes Via Alignment Free Methods, Ambujam Krishnan
LSU Master's Theses
A phylogenetic tree is a tree like diagram showing the evolutionary relationship among various species based on their differences or similarity in their physical or genetic makeup.The similarity in their genetic makeup is traditionally measured based on pairwise distance between their gene sequences using sequence alignment methods. Due to the advancement in next generation sequencing technologies there is a huge amount of datasets available for partially or completely sequenced genomes. These massive datasets requires a faster comparison methods other than the traditional alignment-based approaches. Therefore, alignment free approaches are gaining popularity in recent years. In this thesis, we compare alignment-based …
Comparison Of 3d And 4d Cbct For The Localization Of Moving Targets, Runyon Colie Woods
Comparison Of 3d And 4d Cbct For The Localization Of Moving Targets, Runyon Colie Woods
LSU Master's Theses
Purpose: Compare the localization accuracy of 3D cone beam computed tomography (CBCT) and 4D CBCT for a dynamic respiratory phantom, considering cases with and without respiratory variations between planning and treatment. Methods and Materials: A respiratory phantom was imaged using 3D CBCT and 4D CBCT. Measurements of the amplitude of motion in 3D CBCT and 4D CBCT and size of the sphere at its exhale position in 4D CBCT were acquired. The phantom was then misaligned by known distances relative to a reference position. 3D CBCT and 4D CBCT were used to re-align the phantom by comparing localization images to …
Forest Stakeholders, Policies And Trade In India's Forest Sector, Joy Das
Forest Stakeholders, Policies And Trade In India's Forest Sector, Joy Das
LSU Master's Theses
The thesis examines a panel of trade flows during 2009-2013, exploring the influence of regulatory quality on the pattern of forest products imports by India from 143 partner countries. The study applies a pooled regression model followed by Generalized Least Squared (GLS) technique and a more robust Feasible Generalized Least Squared (FGLS) method of estimation with regulatory quality, distance between the partner country and India, total forest area of partner country, GDP and population indicators to assess the impact of partner country’s regulatory quality and other trade-related factors on imports of forest products by India. The results support the notion …
The Implementation Of Two Cooperative Learning Structures, Rally Coach And Teams-Games-Tournaments, In High School Chemistry Courses, Joanna Miketinas Stewart
The Implementation Of Two Cooperative Learning Structures, Rally Coach And Teams-Games-Tournaments, In High School Chemistry Courses, Joanna Miketinas Stewart
LSU Master's Theses
To combat the obstacles that students experience in chemistry, two cooperative learning strategies, Rally Coach and Teams-Games-Tournaments, were implemented in five chemistry courses at East Ascension High School. Rally Coach called for two students to work as a pair and peer tutor to successfully complete practice problems for each lesson. Teams-Games-Tournaments required students to work in groups of four to complete practice problems and compete for team points as a review. Every student experienced both learning strategies. A comparison was made to see which cooperative learning strategy better helped student performance, including comparisons of effects on different student demographics and …
An Accelerated Middle School Mathematics Curriculum: Combined Engageny Math 6 And Math 7 Curriculum, Emily Jane Moran
An Accelerated Middle School Mathematics Curriculum: Combined Engageny Math 6 And Math 7 Curriculum, Emily Jane Moran
LSU Master's Theses
This thesis discusses the importance and benefits of subject acceleration for mathematically gifted students. The objective was to create an accelerated mathematics curriculum for mathematically gifted students by combining the Math 6 and Math 7 EngageNY curricula and adapting these curricula to meet the needs of my gifted students. This curriculum is to be implemented in a gifted classroom, which allows students to be on an accelerated path in mathematics. This thesis focuses on the Accelerated Mathematics 6 program implemented for 15 sixth grade gifted and scholastic academy students at Woodlawn Middle School, a school located in Baton Rouge, Louisiana. …
Measuring Social Vulnerability To Environmental Hazards In The Dutch Province Of Zeeland, Ryan Hamilton Kirby
Measuring Social Vulnerability To Environmental Hazards In The Dutch Province Of Zeeland, Ryan Hamilton Kirby
LSU Master's Theses
The Netherlands is a kingdom known for resisting the perils of natural disaster and keeping records of how these great feats were accomplished. The Dutch have measured physical risk through methods such as the intricate VNK models to predict flood scenarios, but little research has been conducted to examine how the people living in affected areas could be impacted from a natural disaster event. This study employs fine-scale data to construct a social vulnerability index for the 164 districts of the low-lying delta province of Zeeland. The methodology used to measure social vulnerability is built on recent social vulnerability and …
Population Abundance And Transience Of Selected Coastal Plain Crayfishes, Samantha Lott
Population Abundance And Transience Of Selected Coastal Plain Crayfishes, Samantha Lott
LSU Master's Theses
Crayfish are important for stability, determining ecosystem structure, and ecosystem functions in freshwater habitats. Louisiana has many endemic species of crayfish, but most are poorly described. This study investigated the populations of some of the lesser known crayfishes in the South Central Plains. Specifically, the goals were to examine movement, movement across anthropogenic barriers, and estimate population size of 10 species reported from the area: Procambarus natchitochae, P. vioscai, P. clarkii, P. acutus, P. zonangulus, P. tulanei, P. kensleyi, Orconectes maletae, O. lancifer, and O. palmeri. In combination with a field team, I sampled twelve wadeable streams with DC backpack …
Using Fault Kinematics To Evaluate The Relationship Between Cenozoic Fault Activity, Sedimentation Rates And Salt Movement In The Gulf Of Mexico - A Comparison Between Southwest Louisiana And Southeast Louisiana, Abah Philip Omale
LSU Master's Theses
ABSTRACT Fault initiation and reactivation across south Louisiana during the Cenozoic was driven by either clastic sediment progradation mobilizing underlying salt or by sediment progradation inducing tensional bending stresses during lithospheric flexure. Climate and tectonics within the North American continent during the Cenozoic created differences in the source location, amount of sediments transported, as well as the spatial and temporal distribution of sediments transported into the Gulf of Mexico. This study analyzes 140 fault intercepts along 11 regional cross sections containing well log data in south Louisiana. Cumulative throw, incremental throw, and fault slip rates indicate fault activity punctuated by …
The Influence Of Marine Topography On The Antarctic Ice Sheet, Daniel Michael Mullally Jr
The Influence Of Marine Topography On The Antarctic Ice Sheet, Daniel Michael Mullally Jr
LSU Master's Theses
The primary controls on Antarctic Ice Sheet (AIS) volume and extent include changes in water temperature, precipitation, atmospheric temperature, and sea level. Here we evaluate the influence of a 5th control, the depth of the continental shelf. Shelf depth affects ice sheet mass balance in the marine environment by controlling the flux of ice that can be exported to the marine environment. This is significant because heat exchange between ocean and ice sheet have been demonstrated to be a dominant control on marine ice volume (Pollard and DeConto, 2009). We used the Parallel Ice Sheet Model (PISM) to simulate AIS …
Anthropogenic Impacts On Soil Microbial Processes In Coastal Wetlands: Nutrient Loading And Rising Co2 Levels, Havalend Ellen Steinmuller
Anthropogenic Impacts On Soil Microbial Processes In Coastal Wetlands: Nutrient Loading And Rising Co2 Levels, Havalend Ellen Steinmuller
LSU Master's Theses
Atmospheric carbon dioxide (CO2) levels and global eutrophication are anthropogenic stressors impacting the environment of specific interest in wetland systems. Wetlands occupy a critical interface between terrestrial and aquatic environments. Fertilizer use for agriculture and treated wastewater disposal has increased nutrient loading to wetlands. Conflicting results on impacts of nitrogen loading to coastal wetland soils have been reported, though most studies have investigated short-term impacts of nutrient loading, not long-term integrated impacts. I investigated an 11-year period of nutrient loading on soils in an oligohaline coastal wetland. Nitrogen treatments of 0, 50, 200, and 1200 kg ha-1 yr-1 were paired …
Otoliths Then And Now: A Study Of Ancient And Modern Fish Populations In Louisiana's Coastal Waters, Marshall James Kormanec
Otoliths Then And Now: A Study Of Ancient And Modern Fish Populations In Louisiana's Coastal Waters, Marshall James Kormanec
LSU Master's Theses
Fish otoliths are composed of inorganic calcium carbonate that aid in gravity and auditory reception. Substances permanently accrete to otolith surfaces in distinct temporal patterns of alternating opaque and translucent rings; these rings are direct proxies for a fish’s age. The objective of my research is to demonstrate how otoliths can be used through time and space to estimate both age and growth of fish. I investigated the spatial differences in age distributions and growth models for red snapper, Lutjanus campechanus, at four natural shelf-edge reefs in the northwestern Gulf of Mexico. Red snapper cohorts ranged 1987-2010 cohorts, with the …
If You Build It, What Will Come? Assessing The Avian Response To Wetland Restoration In The Mississippi River Bird’S Foot Delta Through Multiple Measures Of Density And Biodiversity, Lauren Rae Sullivan
If You Build It, What Will Come? Assessing The Avian Response To Wetland Restoration In The Mississippi River Bird’S Foot Delta Through Multiple Measures Of Density And Biodiversity, Lauren Rae Sullivan
LSU Master's Theses
Multiple wetland restoration and enhancement techniques are used in Louisiana to combat land loss and provide habitat for waterbirds. We investigated the avian response to three wetland restoration techniques in the Lower Mississippi Bird’s Foot Delta to determine if the different habitat types resulted in differences in the value of edge habitat. Species richness, guild richness, total bird density, bird density by foraging guild, and bird abundance relative to distance from the marsh edge was compared among (i) crevasse splays, a type of sediment diversion which allow the river to build new wetlands, (ii), beneficial use of dredged material marshes, …
Expression And Characterization Of Mouse Notch1 Abruptex Egf Repeats In E. Coli, Amid Paudyal
Expression And Characterization Of Mouse Notch1 Abruptex Egf Repeats In E. Coli, Amid Paudyal
LSU Master's Theses
Notch1 is a transmembrane protein involved in cell signaling, which is found to be linked to various genetic and neurodegenerative diseases. The extracellular domain of the Notch1 protein consists of 36 tandem epidermal growth factor-like (EGF) repeats, which are directly involved in ligand binding and are heavily glycosylated. EGF 24-29 repeats lie in the Abruptex region of the Notch1 protein, and regulate the ligand binding activity through structural changes. The role of glycosylation in ligand binding events and the overall structure of the Abruptex region are not known. Also, the role of calcium binding in Notch activation or inhibition is …