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Full-Text Articles in Life Sciences

Brain-Based Learning: Implications For The Elementary Classroom, Brenda Van Roekel Jan 2002

Brain-Based Learning: Implications For The Elementary Classroom, Brenda Van Roekel

Master of Education Program Theses

Recent developments in neuroscience have enabled scientists to understand and image brain activity. Brain researchers are now more able than ever before to understand how the brain works, what affects the brain, and what implications these discoveries have for education. Based upon these discoveries new methods of teaching have been devised using the term, brain-based strategies or brain-based learning. This thesis examines some of the brain-based strategies embraced by leaders in this field. It will pay particular attention to the enriched environment, the effect of emotion on learning, and the concept of sensitive or critical periods. It will examine research ...


Ec02-1565 Biology And Management Of Potato Insects, Robert J. Wright, Gary L. Hein, W. Wyatt Hoback, Alexander D. Pavlista Jan 2002

Ec02-1565 Biology And Management Of Potato Insects, Robert J. Wright, Gary L. Hein, W. Wyatt Hoback, Alexander D. Pavlista

Historical Materials from University of Nebraska-Lincoln Extension

A variety of insects can damage potatoes in Nebraska. Insects may feed directly on the tubers and damage the harvestable crop, or they may indirectly damage the crop by feeding on leaves or stems. If severe enough, indirect damage may reduce harvestable yield and quality. Insect feeding also may be important because some insects (e.g., aphids) may transmit plant diseases such as viruses when they feed, or others (e.g., psyllids) may inject toxins. This publication reviews the identification, biology, and management of common insect pests of potatoes in Nebraska. The basis for a successful integrated pest management (IPM ...


G02-1444 Medical Sharps Disposal From Livestock Operations, Dicky D. Griffin, Marilyn Buhman Jan 2002

G02-1444 Medical Sharps Disposal From Livestock Operations, Dicky D. Griffin, Marilyn Buhman

Historical Materials from University of Nebraska-Lincoln Extension

This NebGuide explains how to properly dispose of medical sharps (hypodermic needles and scalpel blades) for livestock operations. Understanding this is critical for employee safety and environmental stewardship.

Disposing livestock medical sharps presents two concerns. The first is human safety. Handling livestock medical sharps presents a potential employee safety concern and as such is addressed within the United States Occupational Safety and Health Administration (OSHA) regulations. Second, the disposal of livestock medical sharps presents an environmental hazard and as such is addressed within the United States Environmental Protection Agency (EPA) regulations.


Nf02-494 Creating A Strong Family: Talking About Religion And Spirituality In Families, John Defrain Jan 2002

Nf02-494 Creating A Strong Family: Talking About Religion And Spirituality In Families, John Defrain

Historical Materials from University of Nebraska-Lincoln Extension

This NebFact is about creating a strong family by talking about religion and other spiritualy things with your family.


Nf02-493 Creating A Strong Family: Looking At Life From A Family Strengths Perspective, John Defrain Jan 2002

Nf02-493 Creating A Strong Family: Looking At Life From A Family Strengths Perspective, John Defrain

Historical Materials from University of Nebraska-Lincoln Extension

This NebFact gives inside advice on how to grow into a strong family.


G02-1465 Crop Water Use In Western Nebraska, C. Dean Yonts Jan 2002

G02-1465 Crop Water Use In Western Nebraska, C. Dean Yonts

Historical Materials from University of Nebraska-Lincoln Extension

Whether your water originates from the ground or the river, water for irrigation is becoming limited due to diminishing supplies and increasing environmental needs. In many areas of the Nebraska Panhandle, groundwater levels are dropping due to over development of the aquifers. In river valleys, water shortages occur during periods of drought.

This NebGuide provides information on average weekly crop water use values for the major crops grown in western Nebraska. The information is best used for planning decisions before the season begins or for long term irrigation system planning.


Cc02-426 Achieving Success With A Business Plan: Case Study Of A Cow/Calf Business Plan, Jody Wichmann, John Hanson, H. Douglas Jose Jan 2002

Cc02-426 Achieving Success With A Business Plan: Case Study Of A Cow/Calf Business Plan, Jody Wichmann, John Hanson, H. Douglas Jose

Historical Materials from University of Nebraska-Lincoln Extension

This publication is a case study of a cow/calf business plan. It covers the business organization; history and overview of the operation; the operation layout; mission statement and goals; present business, legal and contractual situations; production, financial, marketing and personnel situations; job description, salary, benefits and labor training; and personnel summary.


G02-1482 Guidelines For A Non-Fasting Feeding Program For The Molting Of Laying Hens, Sheila E. Scheideler, Mary M. Beck Jan 2002

G02-1482 Guidelines For A Non-Fasting Feeding Program For The Molting Of Laying Hens, Sheila E. Scheideler, Mary M. Beck

Historical Materials from University of Nebraska-Lincoln Extension

Laying hens are molted at the end of one laying cycle (i.e. one year) to induce a cessation of lay and rejuvenation of the reproductive tract and skeleton for a second cycle of egg production. This is based on the natural molting process that wild birds undergo annually and traditionally it has been induced by fasting the hens for a short period of time. This NebGuide offers guidance on non-fasting feeding program for the molting of laying hens.


Nf02-551 Management Of Blister Beetles In Alfalfa, John B. Campbell, Steve Ensley Jan 2002

Nf02-551 Management Of Blister Beetles In Alfalfa, John B. Campbell, Steve Ensley

Historical Materials from University of Nebraska-Lincoln Extension

Adult blister beetles (Epicauta spp.) tend to be gregarious, and several may be observed feeding on the same flowering plant such as alfalfa or sometimes soybeans, goldenrod or occasionally musk thistle, They feed primarily on leaves and flowers but do little damage to crops.

This NebFact discusses the life cycle, damage, treatment, and prevention avoidance of the blister beetle here in Nebraska.


Nf02-503 Atrazine And Non-Atrazine Herbicide Comparisons In Conventional Till Corn, Fred Roeth, Alex Martin Jan 2002

Nf02-503 Atrazine And Non-Atrazine Herbicide Comparisons In Conventional Till Corn, Fred Roeth, Alex Martin

Historical Materials from University of Nebraska-Lincoln Extension

Atrazine herbicide has been in an EPA special review since 1994 because of surface and groundwater contamination concerns. Beginning in 1997, we evaluated atrazine and non-atrazine herbicides in conventional tillage corn and no-till corn on university research farms at Clay Center and Lincoln, Nebraska. The objective was to compare some common atrazine and non-atrazine herbicides for weed control and crop response. Thirteen herbicides were selected to represent commonly used herbicide classes and treatment timings. This NebFact reports the conventional till results.


Nf02-518 Management Of Phytophthora Diseases Of Soybeans, Loren J. Giesler, Jane A. Christensen, Christopher M. Zwiener Jan 2002

Nf02-518 Management Of Phytophthora Diseases Of Soybeans, Loren J. Giesler, Jane A. Christensen, Christopher M. Zwiener

Historical Materials from University of Nebraska-Lincoln Extension

Phythophthora diseases of soybean, caused by Phytophthora sojae, are present wherever soybeans are grown in Nebraska. The pathogen survives primarily as "resting" spores in the soil or in association with infested crop debris. Symptoms associated with Phytophthora sojae, infections include seed rots, pre- and post-emergence dampin goff of seedlings and stem rot of plants at various growth stages.

Knowledge of the races present in the state and how varieties with different resistance genes have performed in a grower's field is critical to variety selection for maximum profitability.


Nf02-506 Plant Disease Central Web Site, Jim Stack Jan 2002

Nf02-506 Plant Disease Central Web Site, Jim Stack

Historical Materials from University of Nebraska-Lincoln Extension

Disease is a natural part of every crop production system. This is true for all crop species and for each type of production system; irrigated or rain-fed, conventional or conservation tillage, and continuous or rotational cropping. In any given year, the question is which diseases will occur in Nebraska's field crops and at what incidence and severity.

To help producers, consultants, and other agricultural professionals diagnose and manage field crop diseases in Nebraska, the Plant Disease Central (PDC) web site was developed. The home page includes instructions on navigating the site under the "About This Site" link.

This NebFact ...


Nf02-505 Drinking Water: Chloramines Waters Disinfection In Omaha Metropolitan Utilities District, Sharon Skipton, Bruce I. Dvorak Jan 2002

Nf02-505 Drinking Water: Chloramines Waters Disinfection In Omaha Metropolitan Utilities District, Sharon Skipton, Bruce I. Dvorak

Historical Materials from University of Nebraska-Lincoln Extension

Bacteria and other disease-causing organisms in drinking water can cause intestinal infections, dysentery, and a variety of other illnesses. Water disinfection reduces disease-causing organisms and prevents the transmission of disease. This publication discusses the disinfection process used by Metropolitan Utilities District and how it will change in 2002.


Nf02-543 Ascochyta Blight Of Chickpeas, Robert M. Harveson Jan 2002

Nf02-543 Ascochyta Blight Of Chickpeas, Robert M. Harveson

Historical Materials from University of Nebraska-Lincoln Extension

The chickpea (Cicer arietinum) ranks among the world's three most important pulse (legume) crops. It is an important source of protein in many parts of central Asia, Africa and the Mediterranean and among the food legumes, is the most effective in reducing blood ocholesterol levels. The crop is antive to western Asia and the Middle East, and is usually grown as a rainfed cool-weather crop or as a dry climate crop in semi-arid regions.

Although chickpeas are reported to be susceptible to over 50 pathogens, few diseases are currently recognized as significant economic constraints to production. Ascochyta blight caused ...


Ec02-219 Nebraska Swine Report, Duane Reese Jan 2002

Ec02-219 Nebraska Swine Report, Duane Reese

Historical Materials from University of Nebraska-Lincoln Extension

The 2002 Nebraska Swine Report was prepared by the staff in Animal Science and cooperating Departments for use in Extension, Teaching and Research programs. This publications deals with research on swine reproduction, breeding, health, nutrition, economics, and housing.


Ec02-179 Managing Livestock Manure To Protect Environmental Quality, Michael A. Reynolds, Brian L. Benham, Richard B. Ferguson, Christopher G. Henry, Charles A. Shapiro, James P. Stack, Charles S. Wortmann Jan 2002

Ec02-179 Managing Livestock Manure To Protect Environmental Quality, Michael A. Reynolds, Brian L. Benham, Richard B. Ferguson, Christopher G. Henry, Charles A. Shapiro, James P. Stack, Charles S. Wortmann

Historical Materials from University of Nebraska-Lincoln Extension

This book covers the land application part of manure management. With increasing regulations, the livestock producer needs to understand the scientific principles that affect manure transformations and how to use these principles to manage the manure for maximum fertilizer value with minimal environmental impact. Improved land application of manure is one part of the solution, but we suggest that the producer evaluate the quantity of nutrients arriving on the farm as feed, animals, and fertilizer compared to the total that is exported. Achieving a nutrient balance will reduce potential environmental hazards often associated with animal agriculture.


Ec02-172 Plumeless Thistle, Kara L. Hilgenfeld, Alex Martin Jan 2002

Ec02-172 Plumeless Thistle, Kara L. Hilgenfeld, Alex Martin

Historical Materials from University of Nebraska-Lincoln Extension

Plumeless thistle (Carduus acanthoides L.) is one of seven noxious weeds in Nebraska. An introduced invasive broadleaf weed native to Europe and Asia, plumeless thistle currently infests about 65,000 acres in Nebraska. Infestations of plumeless thistle may reduce productivity of pastures and rangeland, where infestations tend to be the largest. Plumeless thistle competes with and suppresses growth of desirable species. Heavy infestations prevent livestock from grazing the area and lighter infestations prevent livestock from eating plants growing near the thistle. Estimates place the annual loss in Nebraska agricultural production due to plumeless thistle at $162,000. Although plumeless thistle ...


Ec02-176 Musk Thistle, Fred Roeth, Steven R. Melvin, Irvin L. Schleufer Jan 2002

Ec02-176 Musk Thistle, Fred Roeth, Steven R. Melvin, Irvin L. Schleufer

Historical Materials from University of Nebraska-Lincoln Extension

Musk thistle (Carduus nutans L.) is an introduced invasive broadleaf weed native to Europe, North Africa, and Asia. In these areas it is a minor weed because natural enemies keep its population low. When the plant was introduced into North America, its natural enemies were left behind. Without these natural checks, the thistle is able to thrive and compete with native vegetation.

Musk thistles aggressively invade all lands in Nebraska. Typical cropland weed control methods are very effective against them; however, land with permanent cover (pasture, range, roadway ditches and wasteland) that is not tilled or treated with a herbicide ...


Ec02-171 Canada Thistle, Robert G. Wilson Jan 2002

Ec02-171 Canada Thistle, Robert G. Wilson

Historical Materials from University of Nebraska-Lincoln Extension

Canada thistle [Cirsium arvense (L) Scop.] is one of the seven species defined by Nebraska law as a noxious weed. At least 35 other states also have determined by law that Canada thistle poses a threat to the economic, social, and aesthetic well-being of the residents of their state. Canada thistle is probably the most widespread of all the thistle species and many land managers consider it the most difficult thistle to control. In Nebraska, Canada thistle is estimated to infest 460,000 acres.


Ec02-174 Leafy Spurge, Robert A. Masters, Brady F. Kappler Jan 2002

Ec02-174 Leafy Spurge, Robert A. Masters, Brady F. Kappler

Historical Materials from University of Nebraska-Lincoln Extension

Leafy spurge is an invasive weed that infests over three million acres in the northern Great Plains and the prairie provinces of Canada. It is commonly found in rangelands, pastures, roadsides, rights-of-way, and woodlands. Leafy spurge can reduce rangeland and pasture carrying capacity by as much as 75 percent because it competes with forages and cattle avoid grazing areas infested with this weed. In North Dakota where leafy spurge infests about 900,000 acres, estimates of direct and indirect losses exceed $100 million each year. In Nebraska, the direct loss in forage value attributed to leafy spurge has been estimated ...


Ec02-106 Nebraska Grain Sorghum Hybrid Tests, 2002, Lenis Alton Nelson, Roger Wesley Elmore, Robert N. Klein, David D. Baltensperger Jan 2002

Ec02-106 Nebraska Grain Sorghum Hybrid Tests, 2002, Lenis Alton Nelson, Roger Wesley Elmore, Robert N. Klein, David D. Baltensperger

Historical Materials from University of Nebraska-Lincoln Extension

This circular is a progress report of grain sorghum trials conducted to obtain yield land other information for some of the hybrids being marketed. The 2002 season was the 45th year that private hybrids were included in these trials. Seed producers supported test through fee payments. Cooperating were the Agronomy Department and the South Central, West Central and Panhandle Research and Extension Centers. Conduct of experiments and publication of results is a joint effort of the Agricultural Research Division and the Cooperative Extension Service.


Ec02-104 Nebraska Soybean Variety Tests, 2002, Lenis Alton Nelson, Roger Wesley Elmore, Robert N. Klein, Charles A. Shapiro, Stevan Z. Knezevic Jan 2002

Ec02-104 Nebraska Soybean Variety Tests, 2002, Lenis Alton Nelson, Roger Wesley Elmore, Robert N. Klein, Charles A. Shapiro, Stevan Z. Knezevic

Historical Materials from University of Nebraska-Lincoln Extension

This circular is a progress report of soybean variety trials conducted by personnel of the Agronomy Department and the Northeast, South Central and West Central Research and Extension Centers. Conduct of experiments and publication of results is a joint effort of the Agricultural Research Division and the Cooperative Extension Service.


Ec02-830 Costs Of Cattle Fencing For Grazing Areas, Roger K. Wilson, Richard T. Clark Jan 2002

Ec02-830 Costs Of Cattle Fencing For Grazing Areas, Roger K. Wilson, Richard T. Clark

Historical Materials from University of Nebraska-Lincoln Extension

This publication is an update to an earlier version: Livestock Fencing Cost and Information. Costs for fencing have increased since that time even though the fencing technology is similar.

This publication addresses only the cost of building fences. There are other considerations that may impact the final cost of a fencing project such as site preparation, removal of old fence, building new fences, new fence boundary surveys, and installation.


Ec02-103 Nebraska Fall-Sown Small Grain Variety Tests, 2002, Lenis Alton Nelson, David P. Baltensperger, Robert N. Klein, Roger Wesley Elmore, P. Stephen Baenziger, Todd Campbell Jan 2002

Ec02-103 Nebraska Fall-Sown Small Grain Variety Tests, 2002, Lenis Alton Nelson, David P. Baltensperger, Robert N. Klein, Roger Wesley Elmore, P. Stephen Baenziger, Todd Campbell

Historical Materials from University of Nebraska-Lincoln Extension

This circular is a progress report of variety trials conducted by personnel of the Agronomy Department and the South Central, West Central and Panhandle Research and Extension Centers and their associated agricultural laboratories. Conduct of experiments and publication of results is a joint effort of the Agricultural Research Division and the Cooperative Extension Service. Tests were supported in part by fees paid by commercial seed companies and the Nebraska Wheat Board. The 2002 estimated winter wheat yield for Nebraska was a 32 bushels per acre from 1,450,000 harvested acres. The total production of winter wheat for the state ...


Ec02-1550 Nebraska Management Guide For Arthropod Pests Of Livestock And Horses, John B. Campbell Jan 2002

Ec02-1550 Nebraska Management Guide For Arthropod Pests Of Livestock And Horses, John B. Campbell

Historical Materials from University of Nebraska-Lincoln Extension

Understanding the differences in insecticide formulations is important to selecting the right one for the job. This publication discusses the different insecticides and ways of treating your animals. They include: dusts, emulsifiable concentrates, emulsifiable livestock insecticides, flowables (thick fluids mixed with water), soluble powders, wettable powders, and water dispersible liquids. Insecticides listed in this publication are considered safe when used according to label directions.


Our Relationship....And Parenting, Kathy Bosch Jan 2002

Our Relationship....And Parenting, Kathy Bosch

Historical Materials from University of Nebraska-Lincoln Extension

Your partner relationship should be considered the basis or center of your family. Therefore, during your parenting years, it is essential that you not neglect your marriage or partnership.


Our Relationship....And Parenting Through Conflict, Kathy Bosch Jan 2002

Our Relationship....And Parenting Through Conflict, Kathy Bosch

Historical Materials from University of Nebraska-Lincoln Extension

Even the most compatible, passionate, energetic and loving couple will have conflict at times. Conflict itself is not bad.


Atrazine And Non-Atrazine Herbicide Comparisons In Conventional Till Corn, Fred Roeth, Alex Martin Jan 2002

Atrazine And Non-Atrazine Herbicide Comparisons In Conventional Till Corn, Fred Roeth, Alex Martin

Historical Materials from University of Nebraska-Lincoln Extension

Sequential herbicide applications (preemergence followed by postemergence) were more consistent in weed control across four environments because the postemergence treatments controlled weed escapes and second flushes. Singular herbicide treatments were less effective in that regard. Several single applications gave good control but not the excellent control of the sequential treatments. Atrazine in the preemergence application failed to control velvetleaf, but provided good control when used postemergence. The non-atrazine herbicides were at least as effective as the atrazine herbicides.


Drinking Water: Chloramines Water Disinfection In Omaha Metropolitan Utilities District, Sharon Skipton, Bruce I. Dvorak Jan 2002

Drinking Water: Chloramines Water Disinfection In Omaha Metropolitan Utilities District, Sharon Skipton, Bruce I. Dvorak

Historical Materials from University of Nebraska-Lincoln Extension

Bacteria and other disease-causing organisms in drinking water can cause intestinal infections, dysentery, and a variety of other illnesses. Water disinfection reduces disease-causing organisms and prevents the transmission of disease. This publication discusses the disinfection process used by Metropolitan Utilities District and how it will change in 2002.


Fungicide Spray Schedule For Home Garden Tree Fruits, Jennifer L. Chaky, John E. Watkins Jan 2002

Fungicide Spray Schedule For Home Garden Tree Fruits, Jennifer L. Chaky, John E. Watkins

Historical Materials from University of Nebraska-Lincoln Extension

This NebFact describes the use of integrated pest management in the growing of fruit trees.