Degree Department

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Chromosomal replicons of higher plants (open access)

Chromosomal replicons of higher plants

This brief discussion of replicons of higher plants offers a glimpse into the properties of chromosomal DNA replication. It gives evidence that the S phase of unrelated plant species is comprised of temporally ordered replicon families that increase in number with genome size. This orderly process, which assures a normal inheritance of genetic material to recipient daughter cells, is maintained at the level of replicon clusters by two mutually exclusive mechanisms, one involving the rate at which single replicons replicate their allotment of DNA, and another by means of the tempo-pause. The same two mechanisms are used by cells to alter the pattern of chromosomal DNA replication just prior to and during normal development. Both mechanisms are genetically determined and produce genetic effects when disturbed of disrupted by additional non-conforming DNAs. Further insight into how these two mechanisms operate requires more molecular information about the nature of replicons and the factors that govern when a replicon family replicates. Plant material is a rich and ideal source for this information just awaiting exploitation. 63 refs.
Date: March 16, 1987
Creator: Van't Hof, J.
Object Type: Article
System: The UNT Digital Library
Computer simulation of the lasertron with a ring model (open access)

Computer simulation of the lasertron with a ring model

The lasertron is more efficient, lighter, and smaller than a klystron, especially at outputs below 2 GHz. Higher peak output powers are possible with the lasertron, and a separate modulator is not required. These advantages are useful for rf accelerators and linear colliders. The electron dynamics are simulated to estimate the device performance limits and to design an experimental lasertron. The relativistic electron dynamics are followed from the photocathode through the acceleration region and through the output region. The total fields are the sum of the space-charge, external magnetic, and acceleration or output-cavity fields. Wake fields are ignored, and the steady-state output fields are found. Lasertron performance as a function of acceleration field, charge per pulse nd frequency is calculated, showing its avantages and limitations. A preliminary design for the first Orsay lasertron experiment is presented.
Date: March 16, 1987
Creator: Tallerico, P.J. & Coulon, J.P.
Object Type: Article
System: The UNT Digital Library
Mechanical design and fabrication of a 425-MHz H/sup -/ buncher (open access)

Mechanical design and fabrication of a 425-MHz H/sup -/ buncher

A beam buncher has been designed, fabricated, and installed on the accelerator test stand (ATS) to match the 2-MeV output beam of a 425-MHz H/sup -/ radio-frequency quadrupole (RFQ) into a 425-MHz drift-tube linac (DTL). The buncher configuration provides integral-matching permanent-magnet quadrupoles (PMQ) at the exit of the RFQ and one ..beta..lambda across the buncher accelerating gap; a third PMQ is the first DTL half-cell magnet. Located between the second and third PMQs is a 50-..cap omega.., capacitively coupled, beam-sensing pickup loop. Cooling channels are provided in each of the brazed OFHC copper wall sections. Vacuum pumping of the buncher is provided by a cryogenic refrigerator vacuum pump through an array of small-diameter holes in the buncher cavity wall. Mechanical features of the buncher, the brazing and electron-beam welding of the solid-copper buncher structure, and the beam pickup loop are described in this paper. The buncher has been tuned, installed, and operated at full power on the ATS.
Date: March 16, 1987
Creator: Wilson, N.G. & Precechtel, D.
Object Type: Article
System: The UNT Digital Library
The Cherokeean. (Rusk, Tex.), Vol. 139, No. 10, Ed. 1 Thursday, April 16, 1987 (open access)

The Cherokeean. (Rusk, Tex.), Vol. 139, No. 10, Ed. 1 Thursday, April 16, 1987

Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date: April 16, 1987
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Cherokeean. (Rusk, Tex.), Vol. 139, No. 23, Ed. 1 Thursday, July 16, 1987 (open access)

The Cherokeean. (Rusk, Tex.), Vol. 139, No. 23, Ed. 1 Thursday, July 16, 1987

Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date: July 16, 1987
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
[Memorandum from Flavia Walton to Chapter Presidents and All Links Members - March 16, 1987] (open access)

[Memorandum from Flavia Walton to Chapter Presidents and All Links Members - March 16, 1987]

Memorandum from Flavia Walton to chapter presidents and members of The Links, Inc. discussing current business related to the organization's youth services. They are co-sponsoring "A National Conference on Preventing Alcohol and Drug Abuse in Black Communities", promoting recent issues of the magazine Science Weekly that deal with drug and alcohol abuse, and partnering with Science Weekly to sponsor a national poster contest.
Date: March 16, 1987
Creator: Links, Inc.
Object Type: Text
System: The Portal to Texas History
[Minutes for the San Antonio Chapter of the Links, Inc. Meeting - September 16, 1987] (open access)

[Minutes for the San Antonio Chapter of the Links, Inc. Meeting - September 16, 1987]

Minutes from the September 16, 1987 meeting of the San Antonio chapter of The Links, Inc. Discusses the chapter's correspondence, finances, the findings of an audit, committee activities, a member's participation in a fashion show, and other business. Includes handwritten notes.
Date: September 16, 1987
Creator: Links, Inc. San Antonio Chapter.
Object Type: Text
System: The Portal to Texas History
[Status Report: Audit Committee - September 1987] (open access)

[Status Report: Audit Committee - September 1987]

Report from the Audit Committee of the San Antonio chapter of The Links, Inc. for September 16, 1987. The committee reviewed the chapter's receipts and disbursements for the fiscal year ending April 30, 1987 and found all transactions were legal and proper. The committee recommends that the next year's audit committee develop a better accounting method as they found discrepancies between the secretary's and treasurer's records which had to be reconciled.
Date: September 16, 1987
Creator: Links, Inc. San Antonio Chapter.
Object Type: Text
System: The Portal to Texas History
Texas Register, Volume 12, Number 78, Pages 3795-3859, October 16, 1987 (open access)

Texas Register, Volume 12, Number 78, Pages 3795-3859, October 16, 1987

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: October 16, 1987
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 12, Number [4], Pages 159-206, January 16, 1987 (open access)

Texas Register, Volume 12, Number [4], Pages 159-206, January 16, 1987

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: January 16, 1987
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 12, Number 45, Pages 1921-1947, June 16, 1987 (open access)

Texas Register, Volume 12, Number 45, Pages 1921-1947, June 16, 1987

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: June 16, 1987
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History

[Photograph 2012.201.B0964.0711]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Workers raise a frame for a sidewalk shade outside the Melton Building where Arts Place II will be located."
Date: February 16, 1987
Creator: Beckel, Jim
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0965.0028]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "One Grand Park building has been purchased at a sheriff's sale by the mortgagee, Teachers Insurance and Annuity Association of America"
Date: July 16, 1987
Creator: Hellstern, Paul
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0969.0257]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Church member George Paulley checks wall stud for the new east wall."
Date: January 16, 1987
Creator: Southerland, Paul B.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0964.0086]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Harold Fisher, owner of J&S Scale, purchased this $95,000 office / warehouse at 1545 SE 39."
Date: June 16, 1987
Creator: Hoke, Doug
Object Type: Photograph
System: The Gateway to Oklahoma History
Texas Attorney General Opinion: JM-645 (open access)

Texas Attorney General Opinion: JM-645

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification; Whether the public utility commission may grant a temporary stay to an order entered by a hearing examiner without holding a public meeting.
Date: March 16, 1987
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-679 (open access)

Texas Attorney General Opinion: JM-679

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification; Liability of taxes on properrty where a tax certificate states in error that no taxes are owing thereon
Date: April 16, 1987
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-721 (open access)

Texas Attorney General Opinion: JM-721

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification: Constitutionality of House Bill Nos. 1953 and 1531, which regulate the sale of motor vehicles.
Date: June 16, 1987
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-751 (open access)

Texas Attorney General Opinion: JM-751

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification; Constitutionality of certain portions of article 14.03 of the Code of Criminal Procedure, regarding warrantless arrests in certain misdemeanor cases involving family violence
Date: July 16, 1987
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-787 (open access)

Texas Attorney General Opinion: JM-787

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification: Construction of article 6675a-3(c), V.T.C.S.
Date: September 16, 1987
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
CC Cryostat Cooldown Test Results (open access)

CC Cryostat Cooldown Test Results

A cooldown of the inner vessel of the Central Calorimeter cryostat to 77K was performed during the week of October 12 in order to 'cold shock' it, i.e., to check for insulating vacuum integrity with the inner vessel cold. The conclusion from our test results is that the vessel withstood the cold shock, and the insulating vacuum remained good. Cooldown was analyzed by J.D. Fuerst in D0 note 3740.000-EN-107, dated August 19. Warmup was analyzed by T. Peterson and B.Fitzpatrick in D0 Engineering Note 3740.214-EN-110, dated September 29. Both cooldown and warmup times were in accordance with predictions. An initial pumpdown of the insulating vacuum space was done with the vessel warm on October 9. The results of that pumpdown are shown in Figure 1 superimposed on a predicted pumpdown curve generated by Brian Fitzpatrick before the test began. After 24 hours the insulating vacuum was 7 microns. After 48 and 72 hours it was 2-3 microns. At this point (October 12) valving the pumps off resulted in a rise of 6 microns in 3 hours and 20 minutes, or 1.8 microns per hour. Before beginning cooldown, the pumps were valved off and the insulating vacuum was 15 microns. Cooldown …
Date: October 16, 1987
Creator: Peterson, T.
Object Type: Report
System: The UNT Digital Library
Diamter Surveys of the Inner Cylinder of the CC Cryostat (open access)

Diamter Surveys of the Inner Cylinder of the CC Cryostat

None
Date: October 16, 1987
Creator: Luther, R.D.
Object Type: Report
System: The UNT Digital Library
[News Clip: Homebuilders] captions transcript

[News Clip: Homebuilders]

B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 6pm.
Date: January 16, 1987, 6:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
[News Clip: Candidate forum] captions transcript

[News Clip: Candidate forum]

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 10pm.
Date: March 16, 1987
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library