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A Comparison of Predicted and Actual Trophic Status of Lake Ray Roberts, Texas Based on Chlorophyll A (open access)

A Comparison of Predicted and Actual Trophic Status of Lake Ray Roberts, Texas Based on Chlorophyll A

Two years before impoundment, the trophic status of Lake Ray Roberts was predicted by applying the total phosphorus input into the Organization for Economic Cooperation and Development (OECD) eutrophication model. Predicted mean summer epilimnetic (MSE) chlorophyll a of Elm Fork arm, Isle duBois arm and Main Body were in the eutrophic category of the OECD model. Observed MSE chlorophyll a two years after impoundment of Elm Fork arm, Isle duBois and Main Body had not reached their predicted means and were at the mesotrophic-eutrophic boundary of the OECD model. Six years after impoundment, observed MSE chlorophyll a for Main Body, was closer to its predicted mean and in the eutrophic category of the OECD model. Six years after impoundment, Elm Fork arm was the most productive area of Lake Ray Roberts. Observed means of chlorophyll a, total phosphates, suspended solids and turbidity were often highest in the Elm Fork arm. Wastewater effluent from Gainesville and Valley View, TX, had an impact on productivity in Elm Fork arm.
Date: May 1999
Creator: Lytle, Lili Lisa
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Sanger Courier (Sanger, Tex.), Vol. 100, No. 28, Ed. 1 Thursday, May 6, 1999 (open access)

Sanger Courier (Sanger, Tex.), Vol. 100, No. 28, Ed. 1 Thursday, May 6, 1999

Weekly newspaper from Sanger, Texas that includes local, state, and national news along with extensive advertising.
Date: May 6, 1999
Creator: Hardy, Lisa
Object Type: Newspaper
System: The Portal to Texas History
Sanger Courier (Sanger, Tex.), Vol. 100, No. 30, Ed. 1 Thursday, May 20, 1999 (open access)

Sanger Courier (Sanger, Tex.), Vol. 100, No. 30, Ed. 1 Thursday, May 20, 1999

Weekly newspaper from Sanger, Texas that includes local, state, and national news along with extensive advertising.
Date: May 20, 1999
Creator: Hardy, Lisa
Object Type: Newspaper
System: The Portal to Texas History
Adjustment of Kindergarten Children through Play Sessions Facilitated by Fifth Grade Students Trained in Child-Centered Play Therapy Procedures and Skills (open access)

Adjustment of Kindergarten Children through Play Sessions Facilitated by Fifth Grade Students Trained in Child-Centered Play Therapy Procedures and Skills

This research study investigated the effectiveness of the application of child-centered play therapy procedures and skills by trained fifth grade students in play sessions with kindergarten children who had adjustment difficulties. Specifically, this research determined if play sessions with trained fifth grade students facilitated change in kindergarten children's self concept, internalizing behavior, and externalizing behavior and their parents' stress level.
Date: May 1999
Creator: Baggerly, Jennifer N. (Jennifer Nalini)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Faculty Identification: Effects on Culture in a Metropolitan Research University (open access)

Faculty Identification: Effects on Culture in a Metropolitan Research University

This utilized identification theory to determine if faculty identify with the university and recognize its mission. The study also explored how faculty differentiate between a traditional university and a metropolitan research university. Finally, the study explored whether the faculty consider the University of North Texas to be a Metropolitan Research University. UNT full-time faculty members (N=224) completed questionnaires to indicate their identification with the university and their recognition of the university mission. Analysis showed that faculty have not come to a consensus on the definition of a MRU and that they do not identify with UNT.
Date: May 1999
Creator: Gray, Marlene E.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Effects of Organic Surface Amendments on Soil Nutrients and Initial Tree Establishment (open access)

The Effects of Organic Surface Amendments on Soil Nutrients and Initial Tree Establishment

This study examined the effects of replicating woodland soil surface horizonation on the nutrient status of underlying soils and the initial establishment and growth of trees. A total of 283 container grown trees were planted in a bufferzone around a future landfill site. Control amendments consisted of an 8 cm layer (0.5 m3) of wood chips applied in a circular area of 4.6 m2 around the trees' planting pit. For the treatment, a 2.5 cm layer of composted biosolids (0.15 m3 or 80 Mg/ha) was applied in a circular area of 4.6 m2 around the trees' planting pit followed by an 8 cm layer (0.5 m3) of wood chips. The results indicate that the replication of woodland soil surface attributes using composted biosolids can significantly improve the nutrient status of underlying soil. Some significant effects were seen under control conditions, too. However, the effects on tree establishment and growth parameters were, for the most part, not statistically significant.
Date: May 1999
Creator: Thuesen, Kevin (Kevin Andrew)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Colony Courier-Leader (The Colony, Tex.), Vol. 17, No. 51, Ed. 1 Thursday, May 13, 1999 (open access)

The Colony Courier-Leader (The Colony, Tex.), Vol. 17, No. 51, Ed. 1 Thursday, May 13, 1999

Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date: May 13, 1999
Creator: Watterson, Tim
Object Type: Newspaper
System: The Portal to Texas History
The Colony Courier-Leader (The Colony, Tex.), Vol. 17, No. 52, Ed. 1 Thursday, May 20, 1999 (open access)

The Colony Courier-Leader (The Colony, Tex.), Vol. 17, No. 52, Ed. 1 Thursday, May 20, 1999

Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date: May 20, 1999
Creator: Watterson, Tim
Object Type: Newspaper
System: The Portal to Texas History
The Colony Courier-Leader (The Colony, Tex.), Vol. 17, No. 50, Ed. 1 Thursday, May 6, 1999 (open access)

The Colony Courier-Leader (The Colony, Tex.), Vol. 17, No. 50, Ed. 1 Thursday, May 6, 1999

Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date: May 6, 1999
Creator: Watterson, Tim
Object Type: Newspaper
System: The Portal to Texas History

[McConnell Memorial Tower above trees, 2]

Photograph of the McConnell Memorial Tower at the Hurley Administration Building. The top portion of the tower is peeking out from behind a row of trees; the rest of the building is covered. Tree branches and leaves can be seen above the tower in the foreground of the photograph.
Date: May 24, 1999
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[McConnell Memorial Tower from Northwest, 1]

Photograph of the McConnell Memorial Tower and Hurley Administration Building. Tree branches and leaves are framing the tower in the foreground of the photograph. The right and bottom portions of the Administration Building are covered by trees.
Date: May 24, 1999
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[UNT Murchison Performing Arts Center]

Photograph of the Murchison Performing Arts Center. A large tree trunk can be seen in the center foreground of the photograph, out of focus. Three more trees are covering sight of the building in the background.
Date: May 24, 1999
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[UNT Murchison Performing Arts Center from Northeast]

Photograph of the Murchison Performing Arts Center. The pentagonal structure on the building can be seen in the center of the photograph, facing to the right of the camera. A tree can be seen in the foreground on the left side of the photograph, shading the lawn to the right of it.
Date: May 24, 1999
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[Northeast Corner of Murchison Performing Arts Center]

Photograph of the front left side of the Murchison Performing Arts Center. A glass wall can be seen in the center of the photograph, underneath a pentagonal structure facing to the right. Tree branches and leaves can be seen in the foreground in the top portion of the photograph.
Date: May 24, 1999
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[UNT Murchison Performing Arts Center Pentagonal Window]

Photograph of the pentagonal structure on the Murchison Performing Arts Center. A glass wall can be seen to the left of the structure, with front entrance doors.
Date: May 24, 1999
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[Northwest Corner of Murchison Performing Arts Center]

Photograph of the front right corner of the Murchison Performing Arts Center. A pentagonal structure can be seen on the top portion of the building, facing to the left of the camera. A sunlight glare can be seen on the left side of the photograph. Light is reflecting off of the pentagon.
Date: May 24, 1999
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[UNT Murchison Performing Arts Center from East #1]

Photograph of the Murchison Performing Arts Center. Two trees can be seen in the center foreground of the photograph, partially obstructing view of the building. A pentagonal structure is attached to the building, to the right of a glass wall with entrance doors.
Date: May 24, 1999
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[Northeast Side of Murchison Performing Arts Center, 1]

Photograph of the Murchison Performing Arts Center. A pentagonal structure is attached to the building, to the right of a glass wall with entrance doors. Tree branches and leaves can be seen in the foreground at the top of the photograph.
Date: May 24, 1999
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[UNT Coliseum Northeast Corner]

Photograph of an entrance with multiple double doors near the northeast corner of the Coliseum at UNT. Trees and shrubs are partially obstructing view of the building.
Date: May 24, 1999
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[UNT Physical Education Building Chestnut Entrance]

Photograph of the Physical Education Building at UNT. A tree can be seen in front of the building in the foreground of the photograph. A sign in front of the building reads, "Physical Education Building."
Date: May 24, 1999
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[North Side of Physical Education Building]

Photograph of the Physical Education Building at UNT. Tree branches and leaves are hanging in the foreground in the top portion of the photograph. A tree can be seen in the center of the photograph, in front of the building. A building sign is standing to the right of the tree.
Date: May 24, 1999
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[Top of McConnell Memorial Tower]

Photograph of the McConnell Memorial Tower at the Hurley Administration Building. A tree branch and leaves can be seen in the foreground of the photograph, out of focus.
Date: May 24, 1999
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[North Side of McConnell Memorial Tower, 1]

Photograph of the McConnell Memorial Tower and Hurley Administration Building. The tower can be seen in the center of the photograph, framed by tree branches and leaves in the foreground. The rest of the Administration Building visible in the photograph is being covered by rows of trees.
Date: May 24, 1999
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[North Entrance and McConnell Memorial Tower, 1]

Photograph of the McConnell Memorial Tower and Hurley Administration Building. A tree branch and leaves are framing the tower in the foreground of the photograph. Part of the Administration Building is being covered by a row of trees.
Date: May 24, 1999
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library