Light Without Switches!

If yours is one of the 140,000 Iowa farm homes in which the fuel oil lamp still burns, don\u27t sit by its feeble rays and wait for the years to bring the high line past your place... you may ruin your family\u27s eyesight in the interim

Utilizing the classroom computer in a special education setting to facilitate cooperative learning: a case study using KidPix

Collaboration and cooperative teaching methods have been researched since the late 70\u27s. The research indicates students will learn from each other given the proper environment and tools. In this study, six elementary students were evaluated to examine the effects of teaching individual tasks to students and observing the students for collaboration between partners. Two students were placed side-by-side at one computer and observed by an undergraduate researcher. The results of the observations report the students were engaged in the activity of KidPix 60-l 00% of the time. All of the students were able to complete the tasks over 95% of the time at the follow-up visit. The classroom teacher did allow the students to work on the KidPix program at anytime throughout the study. However, the teacher was not familiar with the program, therefore the students learned from their own experience or through each other

Sizes Turn to the Tapeline

Gertrude Dieken, extension associate, tells of research in clothing size standardizatio

Storing Canned Tomatoes Has no Effect on Vitamin A

Mother Nature\u27s erratic method of one year loading the tomato vines to breaking and, the next, searing the vines to the point of crop failure creates canning problems for the homemaker. Especially because canning has been a sort of year-to-year affair. If there were more tomatoes than the family could eat during the winter months, the neighbors got the rest if they didn\u27t have too many themselves- or sometimes they even wasted in their lush glory

What Size Please?

Soon, when Dad goes to the store to buy a playsuit for his son and heir, he\u27ll probably say, 40 inches tall, hip measure- 21 Instead of, He\u27s eight

Sampling Problems and Interpretation of Chemical Analysis of Mineral Springs Used by Wildlife

Mineral-rich springs used by wildlife were studied in order to develop an appropriate sampling technique. The mineral content of the water varied spatially within a lick, apparently because of contamination by nonlick water and animal urine. The spring source usually could be located with a conductivity meter. Samples contaminated by animal urine could be recognized by their high N content and usually by their color. The distinctive chemical composition of licks is best appreciated by comparing filtered samples of lick water with nonlick water collected nearby. Field filtration was necessary when samples were preserved with acid for trace-metal analysis. Soil samples from lick and nonlick sites revealed of the properties of the spring water, but not as well as water analysis. High levels of Na were found the spring water of all Ontario licks sampled. Many conflicting results among other studies may be attributable to inappropriate sampling

Sampling Problems and Interpretation of Chemical Analysis of Mineral Springs Used by Wildlife

Mineral-rich springs used by wildlife were studied in order to develop an appropriate sampling technique. The mineral content of the water varied spatially within a lick, apparently because of contamination by nonlick water and animal urine. The spring source usually could be located with a conductivity meter. Samples contaminated by animal urine could be recognized by their high N content and usually by their color. The distinctive chemical composition of licks is best appreciated by comparing filtered samples of lick water with nonlick water collected nearby. Field filtration was necessary when samples were preserved with acid for trace-metal analysis. Soil samples from lick and nonlick sites revealed of the properties of the spring water, but not as well as water analysis. High levels of Na were found the spring water of all Ontario licks sampled. Many conflicting results among other studies may be attributable to inappropriate sampling

"Wheyfers": A High Protein Snack Food Made from the Yeast Kluyveromyces Fragilis Grown in Cottage Cheese Whey

Food Scienc

Oppositional defiant disorder : using family therapy and parent training techniques for effective treatment outcomes

Oppositional Defiant Disorder (ODD) clinically affects children and adolescents through the display of unwanted disruptive, hostile, defiant, and oppositional behaviors. Development of these can be linked to parental psychopathology, family and marital dysfunction, poor parent-child interaction, atypical parenting, maternal age, substance abuse, poor supervision, and inconsistent or harsh discipline. The effects of ODD lead to impaired social functioning, depression, low self-esteem, academic failure, substance abuse, delinquency, and family discord. Compared to other treatments ( e.g., medication, behavior modification, punishment, or removal from the home) the most effective course of treatment for ODD is the use of family therapy and parent training techniques. Examples of effective programs and interventions are described, and recommendations for future research are discussed

Zinc-Silver, Zinc-Palladium, and Zinc-Gold as Bimetallic Systems for Carbon Tetrachloride Dechlorination in Water

Doping of zinc with silver, palladium, and gold was found to increase reactivity towards carbon tetrachloride in water. Commercial zinc dust, cryochemically prepared zinc metal particles (SMAD nanoparticles), and zinc dust pressed into pellets (mechanically activated zinc) were employed. Reduction products detected were methane, ethylene, acetylene, and other hydrocarbons along with products of partial dechlorination such as chloroform, methylene chloride, and methyl chloride. Dichloroethylenes (DCEs) and long-term reactions traces of trichloroethylene (TCE) were also detected. The use of zinc dust doped with palladium, gold, and silver resulted in 4-10 fold increases in carbon tetrachloride degradation rate and conversion into methane. Up to 30% of carbon tetrachloride was converted into methane by the Zn dust / 2 mol % Ag bimetallic system after the first six hours of reaction. Doping of activated forms of zinc, both cryoparticle and pellets, caused a further increase in methane formation and decrease in the concentration of methylene chloride. The data show that bimetallic enhancement with Pd, Ag, Au, as well as cryo and mechanical activation of zinc, enhances the metal surface reactivity and changes the priority of reaction pathways such that fully reduced products are favored. The “non-catalytic” gold metal was especially effective and this suggests that electron transfer, not catalytic hydrogenation, is rate determining