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Life Sciences

2006

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Articles 91 - 111 of 111

Full-Text Articles in Education

2006 Nebraska Farm Custom Rates - Part Ii, H. Douglas Jose Jan 2006

2006 Nebraska Farm Custom Rates - Part Ii, H. Douglas Jose

University of Nebraska-Lincoln Extension: Historical Materials

Every two years a survey of custom operators is conducted to determine the current rates charged for specific machinery operations. The survey is divided into two parts: Part I includes spring and summer operations, including planting and small grains harvest, and in Part II information about fall and miscellaneous operations.


G1279 Drinking Water: Nitrate-Nitrogen, Paul J. Jasa, Sharon O. Skipton, David L. Varner, Delynn Hay Jan 2006

G1279 Drinking Water: Nitrate-Nitrogen, Paul J. Jasa, Sharon O. Skipton, David L. Varner, Delynn Hay

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide discusses practices recommended to manage nitrate-nitrogen in a domestic water supply. Nitrogen is essential for all living things as it is an essential component of protein. Nitrogen exists in the environment in many forms and changes forms as it moves through the nitrogen cycle. However, excessive concentrations of nitrate-nitrogen in drinking water can be hazardous to health, especially for infants and pregnant women. This publication encompasses sources of nitrate in drinking water, indications of nitrate, potential health effects, testing and interpreting test results, and options for treatment.


Ec798 Residential On-Site Wastewater Treatment: An Overview, Janet R. Hygnstrom, Wayne Woldt, Sharon Skipton Jan 2006

Ec798 Residential On-Site Wastewater Treatment: An Overview, Janet R. Hygnstrom, Wayne Woldt, Sharon Skipton

University of Nebraska-Lincoln Extension: Historical Materials

Answers for homeowners, realtors and lenders about residential on-site wastewater treatment systems.

This publication will answer many questions that homeowners, potential homeowners, realtors and lenders have about residential on-site wastewater treatment systems. Information is based on Nebraska Department of Environmental Quality's "Title 124: Rules and Regulations for the Design, Operation and Maintenance of On-site Wastewater Treatment Systems.


Instructions For Authors, Discovery Editors Jan 2006

Instructions For Authors, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.


Letter From The Dean, Gregory J. Weidemann Jan 2006

Letter From The Dean, Gregory J. Weidemann

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.


Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 7 2006, Several Authors Jan 2006

Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 7 2006, Several Authors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.


Research Plan And Preliminary Results - A Field Research Site For Emerging Contaminants In Iowa, Douglas J. Schnoebelen, Dana W. Kolpin, Larry B. Barber, Edward T. Furlong, Michael M. Meyer, Mary Skopec Jan 2006

Research Plan And Preliminary Results - A Field Research Site For Emerging Contaminants In Iowa, Douglas J. Schnoebelen, Dana W. Kolpin, Larry B. Barber, Edward T. Furlong, Michael M. Meyer, Mary Skopec

Journal of the Iowa Academy of Science: JIAS

Research has recently documented the prevalence of a wide variety of pharmaceuticals and other emerging contaminants (ECs) in streams across the United States. Wastewater treatment plants (WWTPs) have been found to be an important source and collection point of ECs to streams as many ECs are incompletely removed during treatment. To investigate the complex instream processes (e.g., dilution, sorption, degradation, dispersion, etc.) chat can affect ECs following their input from a WWTP and determining if such input is having an effect on the aquatic ecosystem requires the integration of multi-disciplinary efforts at a carefully selected field site. Preliminary work has …


Editorial Board & Iowa Academy Of Science Officers And Directors Jan 2006

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Relation Of Riparian Buffer Strips To In-Stream Habitat, Macroinvertebrates And Fish In A Small Iowa Stream, Jeremy P. Duehr, Michael J. Siepker, Clay L. Pierce, Thomas M. Isenhart Jan 2006

Relation Of Riparian Buffer Strips To In-Stream Habitat, Macroinvertebrates And Fish In A Small Iowa Stream, Jeremy P. Duehr, Michael J. Siepker, Clay L. Pierce, Thomas M. Isenhart

Journal of the Iowa Academy of Science: JIAS

Macroinvertebrate and fish habitat is often degraded as a result of agriculture. Riparian buffer strips are commonly used to counteract the negative effects of agriculture in headwater streams. We assessed the relation of multi-aged riparian buffer strips to in-stream habitat, macroinvertebrate and fish assemblages in an Iowa stream. In-stream habitat, macroinvertebrates, and fish were sampled from two buffered sites and two unbuffered sites, with the greatest substrate, water depth, and velocity heterogeneity occurring in buffered sites. The highest macroinvertebrate richness (11) as well as fish species richness (14), diversity (1.99) and IBI score (37) were found in the site buffered …


Front Matter Jan 2006

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Relation Of Riparian Buffer Strips To In-Stream Habitat, Macroinvertebrates And Fish In A Small Iowa Stream, Jeremy P. Duehr, Michael J. Siepker, Clay L. Pierce, Thomas M. Isenhart Jan 2006

Relation Of Riparian Buffer Strips To In-Stream Habitat, Macroinvertebrates And Fish In A Small Iowa Stream, Jeremy P. Duehr, Michael J. Siepker, Clay L. Pierce, Thomas M. Isenhart

Journal of the Iowa Academy of Science: JIAS

Macroinvertebrate and fish habitat is often degraded as a result of agriculture. Riparian buffer strips are commonly used to counteract the negative effects of agriculture in headwater streams. We assessed the relation of multi-aged riparian buffer strips to in-stream habitat, macroinvertebrate and fish assemblages in an Iowa stream. In-stream habitat, macroinvertebrates, and fish were sampled from two buffered sites and two unbuffered sites, with the greatest substrate, water depth, and velocity heterogeneity occurring in buffered sites. The highest macroinvertebrate richness (11) as well as fish species richness (14), diversity (1.99) and IBI score (3 7) were found in the site …


Back Cover Jan 2006

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Cover - Table Of Contents Jan 2006

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Front Matter Jan 2006

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


The Honey Creek Member: A New Holocene Alluvial Stratigraphic Unit In The Midwest, Jeremy S. Dillon, Rolfe D. Mandel Jan 2006

The Honey Creek Member: A New Holocene Alluvial Stratigraphic Unit In The Midwest, Jeremy S. Dillon, Rolfe D. Mandel

Journal of the Iowa Academy of Science: JIAS

This paper describes the type locality and type section for the Honey Creek Member, a stratigraphic unit first recognized in the Honey Creek drainage in southeastern Nebraska. The alluvial chronology for Honey Creek basin is similar to the regional chronology of streams in the Midwest, and all of the formal members of the DeForest Formation occur in the basin. However, the lithology of one unit, the Honey Creek Member, does not correlate with any of the formally recognized members of the DeForest Formation. The Honey Creek Member is composed of grayish brown silt loam overbank facies coarsening downward to a …


Use Of Artificial Enclosures To Determine The Survival Of Rana Pipiens Larvae In Upper Midwestern Agricultural Ponds, Joshua M. Kapfer, Mark B. Sandheinrich, Melinda G. Knutson Jan 2006

Use Of Artificial Enclosures To Determine The Survival Of Rana Pipiens Larvae In Upper Midwestern Agricultural Ponds, Joshua M. Kapfer, Mark B. Sandheinrich, Melinda G. Knutson

Journal of the Iowa Academy of Science: JIAS

Amphibians in the upper Midwest use agricultural ponds for breeding. Unfortunately, the risks (both direct and indirect) associated with using these ponds are poorly understood in both amphibian adults and larvae. In order to quantify these risks, we performed a comparison of larval survival rates between agricultural and natural ponds in southeastern Minnesota during the spring and summer of 2001. During this time, larval survival was observed in Rana pipiens tadpoles raised through metamorphosis in enclosures placed in agricultural and natural ponds. In addition, we measured the levels of nutrients commonly linked with agricultural ponds (i.e., ammonia, total phosphorous, and …


Contents, Discovery Editors Jan 2006

Contents, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.


Nlm Database Central: The First Place To Look For Your Phsr Research Data, F. Douglas Scutchfield Md Jan 2006

Nlm Database Central: The First Place To Look For Your Phsr Research Data, F. Douglas Scutchfield Md

Preventive Medicine and Environmental Health Presentations

No abstract provided.


The Effect Of Mandatory Continuing Education On Practice Quality And Competency Of Professional Land Surveyors, Anthony Richard Vannozzi Jan 2006

The Effect Of Mandatory Continuing Education On Practice Quality And Competency Of Professional Land Surveyors, Anthony Richard Vannozzi

Electronic Theses and Dissertations

Mandatory Continuing Education (MCE) has always been a "hot button" topic in the professions and land surveying is no exception. Though most other professions (i.e. medicine, education, accountancy, dentistry, nursing, etc.) have included scientifically based research as part of their debate on whether to make continuing education mandatory, no empirical studies in land surveying were found. Though the land surveying literature is replete with anecdotal discussions on the topic, (commentaries, editorials, policy statements, magazine articles, etc.), and tremendous energy is being expended within the land surveying profession in debating and making decisions regarding the MCE issue, the lack of hard …


Sea Turtle Science : A Research-Based Middle And High School Classroom Resource, Susanna Musick, Lisa Lawrence Jan 2006

Sea Turtle Science : A Research-Based Middle And High School Classroom Resource, Susanna Musick, Lisa Lawrence

Reports

Sea turtle quick facts, biology, turtle species, nesting behavior, hatching activity, classroom activities.


On Wisdom For Our Future Dec 2005

On Wisdom For Our Future

Sandra Wooltorton

It is early summer in the south-west of Western Australia, one of the most biodiverse eco-regions on earth. It is quiet now, late in the evening, while outside the wind stirs a gentle rustle in the tops of the tuart, jarrah, peppermint and banksia trees. In the scrubby undergrowth, the shy quenda is scurrying about, busily conducting her affairs in such a way that most of the humans are unaware of her presence. In the peppermint trees, the western ringtail possum will be similarly busy, along with the brush tail possum, the tawny frogmouth bird, the boobook owl and the …