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Full-Text Articles in Physical Sciences and Mathematics

Disclosure Detection In Multivariate Categorical Databases: Auditing Confidentiality Protection Through Two New Matrix Operators, Sumit Dutta Chowdhury, George T. Duncan, Ramayya Krishnan, Stephen F. Roehrig, Sumitra Mukherjee Dec 1999

Disclosure Detection In Multivariate Categorical Databases: Auditing Confidentiality Protection Through Two New Matrix Operators, Sumit Dutta Chowdhury, George T. Duncan, Ramayya Krishnan, Stephen F. Roehrig, Sumitra Mukherjee

CCE Faculty Articles

As databases grow more prevalent and comprehensive, database administrators seek to limit disclosure of confidential information while still providing access to data. Practical databases accommodate users with heterogeneous needs for access. Each class of data user is accorded access to only certain views. Other views are considered confidential, and hence to be protected. Using illustrations from health care and education, this article addresses inferential disclosure of confidential views in multidimensional categorical databases. It demonstrates that any structural, so data-value-independent method for detecting disclosure can fail. Consistent with previous work for two-way tables, it presents a data-value-dependent method to obtain tight …


A Near-Surface Microstructure Sensor System Used During Toga Coare. Part Ii: Turbulence Measurements, Alexander Soloviev, Roger Lukas, Peter Hacker, H. Schoeberlein, M. Baker, A. Arjannikov Nov 1999

A Near-Surface Microstructure Sensor System Used During Toga Coare. Part Ii: Turbulence Measurements, Alexander Soloviev, Roger Lukas, Peter Hacker, H. Schoeberlein, M. Baker, A. Arjannikov

Marine & Environmental Sciences Faculty Articles

New techniques developed for near-surface turbulence measurements during the Tropical Ocean Global Atmosphere (TOGA) Coupled Ocean–Atmosphere Response Experiment (COARE) employ a difference in spatial scales of turbulence and surface waves. According to this approach, high relative speed of the measurements provides separation of the turbulence and surface wave signals. During the TOGA COARE field studies, highresolution probes of pressure, temperature, conductivity, fluctuation velocity, and acceleration were mounted on the bow of the vessel at a 1.7-m depth in an undisturbed region ahead of the moving vessel. The localization in narrow frequency bands of the vibrations of the bow sensors allows …


The Coral Reef Fishes Of Broward County Florida, Species And Abundance: A Work In Progress, B. D. Ettinger, David S. Gilliam, L. K. B. Jordan, Robin L. Sherman, Richard E. Spieler Nov 1999

The Coral Reef Fishes Of Broward County Florida, Species And Abundance: A Work In Progress, B. D. Ettinger, David S. Gilliam, L. K. B. Jordan, Robin L. Sherman, Richard E. Spieler

Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures

The inshore environment of Broward County, FL consists of three coral reef/hard bottom reef tracts, separated by sand substrate, running parallel to the coast in sequentially deeper water. At quarter nautical mile intervals, for a five mile coastline section, fishes were censused at western, eastern and crest sites of each of the three reef tracts. On SCUBA and using the Bohnsack/Bannerot point-count method, we recorded: fish abundance, species richness, size, and general habitat of an imaginary cylinder 15 m in diameter. The position of each site was recorded by DGPS after census. One hundred and eighty-one sites were censused during …


North Fork Of The New River Benthic Macroinvertebrate Recruitment Study: Final Report, Charles G. Messing Oct 1999

North Fork Of The New River Benthic Macroinvertebrate Recruitment Study: Final Report, Charles G. Messing

Marine & Environmental Sciences Faculty Reports

Over the last several years, the Broward County Department of Natural Resource Protection has identified a series of major environmental problems in the North Fork of the New River, including illegal wastewater sludge discharge and heavy metal contamination of sediments (DNRP 1993 1994). A qualitative survey suggests that benthic macroinvertebrates have been negatively affected (DNRP 1997). Restoration projects have included removal in the summer of 1997 of a remnant sludge blanket from an area of the channel east of Interstate 95 and north of Broward Boulevard. However, the effectiveness of such dredging in terms of habitat restoration has not previously …


Isotope Ratio Studies Of Marine Mammals In Prince William Sound, Donald M. Schell, Amy Hirons Oct 1999

Isotope Ratio Studies Of Marine Mammals In Prince William Sound, Donald M. Schell, Amy Hirons

Marine & Environmental Sciences Faculty Reports

No abstract provided.


Fall 1999, Nsu Oceanographic Center Oct 1999

Fall 1999, Nsu Oceanographic Center

Currents

No abstract provided.


Final Technical Report For The Enhancement Of Autonomous Marine Vehicle Testing In The South Florida Testing Facility Range, South Florida Ocean Measurement Center (Sfomc) Partners Sep 1999

Final Technical Report For The Enhancement Of Autonomous Marine Vehicle Testing In The South Florida Testing Facility Range, South Florida Ocean Measurement Center (Sfomc) Partners

Marine & Environmental Sciences Faculty Reports

The purpose of this grant was to carry out the six scientific experiments on the South Florida Testing Facility (SFTF) Range. In addition to the enhancements to the range, work was performed on all six with some being successfully completed while research continues on the long term tasks.


Moolapheonoides Utmas, New Species, From Coral Reefs In The Madang Lagoon, Papua New Guinea (Amphipoda, Cyproideidae), James Darwin Thomas Sep 1999

Moolapheonoides Utmas, New Species, From Coral Reefs In The Madang Lagoon, Papua New Guinea (Amphipoda, Cyproideidae), James Darwin Thomas

Marine & Environmental Sciences Faculty Articles

Moolapheonoides utmas, new species, is described from coral reefs at Madang, Papua New Guinea. M. utmas differs from other species in the genus by the large tooth-cusp projecting posteroventrally on article 2 of pereopod 7 and the lower dorsal crest of the urosome. It shares an unusual dorsolateral bulbous projection of pereonite segments 3 and 4 with other cyproideid species Hoplopohoenoides obessa Shoemaker from Florida, and Naraphoenoides mullaya Barnard from Australia. Identification keys for the genus Moolaphoenoides are presented and relationships to other genera in the family are discussed.


Summer 1999, Nsu Oceanographic Center Aug 1999

Summer 1999, Nsu Oceanographic Center

Currents

No abstract provided.


Molecular Techniques Reveal Wide Phyletic Diversity Of Heterotrophic Microbes Associated With Discodermia Spp. (Porifera: Demospongiae), Jose V. Lopez, Peter J. Mccarthy, Kathleen E. Janda, Robin Willoughby, Shirley A. Pomponi Jun 1999

Molecular Techniques Reveal Wide Phyletic Diversity Of Heterotrophic Microbes Associated With Discodermia Spp. (Porifera: Demospongiae), Jose V. Lopez, Peter J. Mccarthy, Kathleen E. Janda, Robin Willoughby, Shirley A. Pomponi

Marine & Environmental Sciences Faculty Articles

Sponges are well known to harbor large numbers of heterotrophic microbes within their mesohyl. Studies to determine the diversity of these associated microbes have been attempted for only a few shallow water species. We cultured various microorganisms from several species of Discodermia collected from deep water using the 'Johnson-Sea-Link' manned submersibles, and characterised them by standard microbiological identification methods. Characterisation of a small proportion (ca. 10%) of the total and potential eubacterial isolate collection with molecular systematics techniques revealed a wide diversity of microbes. Phylogenetic analyses of 32 small subunit (SSU) 16S-like rRNA gene sequences from different micorbes indicated high …


Spring 1999, Nsu Oceanographic Center Apr 1999

Spring 1999, Nsu Oceanographic Center

Currents

No abstract provided.


Manejo Del Agua En Las Acequias Privadas Garrapatal Y El Tambo En La Provincia Del Carchi, Ecuador, Jorge Sotomayor, Wim H. Kloezen, Elena Bastidas Jan 1999

Manejo Del Agua En Las Acequias Privadas Garrapatal Y El Tambo En La Provincia Del Carchi, Ecuador, Jorge Sotomayor, Wim H. Kloezen, Elena Bastidas

Conflict Resolution Studies Faculty Articles

Como parte de las actividades que el Instituto Internacional del Manejo del Agua (IWMI, por su sigla en Inglés) adelantó en la Región Andina se llevó a cabo el estudio que aquí se presenta. El Banco Interamericano de Desarrollo otorgó una donación al Intituto a fin de valuar, entre otras cosas, el manejo de los sistemas de riego privados en las partes altas del Ecuador. Fue así como se escogieron dos acequias en la Provincia del Carchi: Garrapatal y el Tambo. El estudio representa un esfuerzo significativo por parte de los autores ya que las condiciones geográficas del área constituyen …


Epi-And Mesopelagic Fishes, Acoustic Data, And Sst Images Collected Off Lanzarote, Fuerteventura, And Gran Canaria, Canary Islands, During Cruise "La Bocaina 04-97", F. Bordes, F. Uiblein, R. Castillo, A. Barrera, J. J. Castro, J. Coca, J. Gomez, K. Hansen, V. Hernandez, N. Merrett, M. Miya, T. Moreno, F. Perez, A. Ramos, Tracey Sutton, M. Yamaguchi Jan 1999

Epi-And Mesopelagic Fishes, Acoustic Data, And Sst Images Collected Off Lanzarote, Fuerteventura, And Gran Canaria, Canary Islands, During Cruise "La Bocaina 04-97", F. Bordes, F. Uiblein, R. Castillo, A. Barrera, J. J. Castro, J. Coca, J. Gomez, K. Hansen, V. Hernandez, N. Merrett, M. Miya, T. Moreno, F. Perez, A. Ramos, Tracey Sutton, M. Yamaguchi

Marine & Environmental Sciences Faculty Reports

During cruise "La Bocaina 0497" a series of 14 tows with a commercial pelagic trawl at depths between 20 and 700 m and an acoustic survey with a SIMRAD EK-500 echosounder were carried out in neritic and adjacent oceanic waters off Lanzarote, Fuerteventura, and Gran Canaria, Canary islands. In addition, SST images were obtained to get some informations on the prevailing hydrological conditions in the study area.

Of the 14 trawl tows ten were successful and resulted in capture of a total of 2166 fishes belonging to 81 species, 53 genera and 28 families. Ten species proved to be new …


Sea Turtle Conservation Program, Broward County, Fl 1999 Report, Curtis M. Burney, William E. Margolis Jan 1999

Sea Turtle Conservation Program, Broward County, Fl 1999 Report, Curtis M. Burney, William E. Margolis

Marine & Environmental Sciences Faculty Reports

No abstract provided.


Skeletal Architecture And Density Banding Analysis Technique For Diploria Strigosa By X-Ray Computed Tomography, Kevin P. Helmle, Richard E. Dodge (Editor) Jan 1999

Skeletal Architecture And Density Banding Analysis Technique For Diploria Strigosa By X-Ray Computed Tomography, Kevin P. Helmle, Richard E. Dodge (Editor)

Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures

Coral skeletal density information is a useful growth parameter and may be coupled with extension rates to determine calcification rates. The conventional process for density determination is often cumbersome and requires some parameters which are difficult to precisely specify (e.g., Mass absorption coefficients). We have developed a technique and windows based computer program which enables the rapid collection of coral density data. The coral skeleton slab is xradiographed with an aluminum wedge. Thickness and density of the aluminum wedge, thickness of the coral slab, density of pure coral aragonite, and digitized images of the coral and wedge x-radiographs provide necessary …


Winter 1999, Nsu Oceanographic Center Jan 1999

Winter 1999, Nsu Oceanographic Center

Currents

No abstract provided.


1999-2000 Nova Southeastern University Center For Undergraduate Studies Catalog, Nova Southeastern University Jan 1999

1999-2000 Nova Southeastern University Center For Undergraduate Studies Catalog, Nova Southeastern University

Undergraduate Programs Course Catalogs

No abstract provided.


Oceanographic Center Catalog 1999-2000, Nova Southeastern University Jan 1999

Oceanographic Center Catalog 1999-2000, Nova Southeastern University

Halmos College of Natural Sciences and Oceanography Course Catalogs

No abstract provided.


Multi-User Domain Object Oriented (Moo) As A High School Procedure For Foreign Language Acquisition, James A. Backer Jan 1999

Multi-User Domain Object Oriented (Moo) As A High School Procedure For Foreign Language Acquisition, James A. Backer

CCE Theses and Dissertations

Foreign language students experience added difficulty when they are isolated from native speakers and from the culture of the target language. It has been posited that MOOs (Multiuser domain Object Oriented) may help to overcome the geographical isolation of these students. MOOs are Internet-based virtual worlds in which people from all over the real world meet for synchronous textual conversations and can interact with asynchronous textual objects found there. Students who enjoy a MOO site may identify with its virtual target language community and find integrative motivation which the literature suggests is necessary for advanced language acquisition.

This study focused …


Linking Printed Books To Computerized Speech, Edward D. Crook Jan 1999

Linking Printed Books To Computerized Speech, Edward D. Crook

CCE Theses and Dissertations

Adult students who experience difficulties in comprehending written (printed) language frequently are limited in their scholastic development and possible employment opportunities. These individuals, who represent a growing segment of the learning disabled population, include poor readers and dyslexics and they routinely seek help and remediation through various educational techniques. One remediation technique often used is "books on tape". Through books on tape, recorded spoken text is presented in a sequential manner to the remedial reader as he or she is reading the corresponding printed document. This dissertation reviewed the books on tape paradigm, and through the use of current computer …


The Use Of Cooperative Groups In Learning How To Use New Software Programs, James R. Grunwald Jan 1999

The Use Of Cooperative Groups In Learning How To Use New Software Programs, James R. Grunwald

CCE Theses and Dissertations

Many teachers lament the fact that they often need to spend too much classroom time training students how to use a particular software program before their students can use it effectively as a tool to complete other course work. Also, after completing the training process, too many students still have not mastered the basics of how to use the program effectively. The purpose of this research was to increase understanding of how the use of cooperative groups during new software training affects both the mastery of the basics of program use, as well as the amount of time needed to …


International Usability, Design Guidelines And Effectiveness Of A World Wide Web-Based Instructional Program For High School Students In A Cross-Culture Learning Environment, Hajime Hayakawa Jan 1999

International Usability, Design Guidelines And Effectiveness Of A World Wide Web-Based Instructional Program For High School Students In A Cross-Culture Learning Environment, Hajime Hayakawa

CCE Theses and Dissertations

The recent growth of the Internet and the World Wide Web (WWW) has resulted in a vast array of on-line courseware and educational Web sites. Unfortunately, as a large percentage of this information is written in English, non-English speakers are unable to access it. Information written in other languages is likewise unavailable to many native English speakers. Therefore, in order to maximize the usefulness of educational material on the Web, it is necessary to design and implement cross-cultural, bilingual or multilingual Web sites and instructional programs.

This study was designed to contribute to the area of bilingual learning on the …


A Theoretical Model For A Prescription Drug Public Key Cryptographic System, Donald R. Lemma Jan 1999

A Theoretical Model For A Prescription Drug Public Key Cryptographic System, Donald R. Lemma

CCE Theses and Dissertations

A critical component of a physician's duties is prescribing medication to his or her patients. This process is handled by the physician writing a prescription for a medication and having the medication dispensed to the named patient. A review of federal law reveals no requirement that the prescription be issued on any type of specific written instrument such as safety paper, multi-part forms, or other standardized documents.

Because of the lack of adequate controls, there is a serious problem with false and altered prescriptions being issued within the United States. A 1994 study by the White House Office of National …


A Study Of The Computerized Reading Management Program, Accelerated Reader, And Its Effect On Reading Among Primary Grade Students, Mitchell O. Pratt Jan 1999

A Study Of The Computerized Reading Management Program, Accelerated Reader, And Its Effect On Reading Among Primary Grade Students, Mitchell O. Pratt

CCE Theses and Dissertations

This study examined the computerized reading management program, Accelerated Reader and its effect on primary grade students. The purpose of the study was to test Accelerated Reader's effect on reading comprehension among two student populations that were demographically similar. Two schools were chosen, Orem Elementary, School A, where the researcher is employed, and School B, another elementary school in Alpine School District. An ex post facto, non-randomized control group design was used. Data from the Utah Core Assessment Series End-of-Level, Reading, Level 3 Form A, (1989) and the Stanford Achievement Test (1990) was used. Students who attended either School A …