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Articles 12181 - 12210 of 12325

Full-Text Articles in Life Sciences

1982 Beef Cattle Report, Roy G. Arnold Jan 1982

1982 Beef Cattle Report, Roy G. Arnold

Nebraska Beef Cattle Reports

A four-phase maximum forage system was evaluated in two trials over a two-year period. The fot:,r phases included: 1) cornstalk grazing (56 days), 2) stalklage feeding (121 days), 3) pasture grazing (112 days), and 4) finishing (96 days). In phase 1, weanling heifers gained about 1 lb per day grazing cornstalks, when supplemented with 2 lb of a 32 percent natural protein supplement. Adding monensin to the supplement resulted in an increase of. l lb in average daily gain (ADG). In phase 2, when heifers were fed stalklage twice weekly on winter pasture (trial 1), ADG and feed intake of …


The Multi-Individual Cremation Phenomenon Of The Santa Cruz Drainage, Karl J. Reinhard, T Michael Fink Jan 1982

The Multi-Individual Cremation Phenomenon Of The Santa Cruz Drainage, Karl J. Reinhard, T Michael Fink

Karl Reinhard Publications

Multi-individual cremation deposits found in the upper Santa Cruz River drainage were previously interpreted as the result of hypothesized cultural contact in the area. A review of 50 cremation deposits for which detailed analyses are available indicates that mulii-individual cremation deposits are the result of incomplete gleaning practices and have doubtful cultural significance. Hypotheses are generated from the present data which account for the apparent variation in cremation practices within the study area.


Detergent Extraction Of A Presumptive Gating Component From The Voltage-Dependent Sodium Channel, W J. Culp, D T. Mckenzie Nov 1981

Detergent Extraction Of A Presumptive Gating Component From The Voltage-Dependent Sodium Channel, W J. Culp, D T. Mckenzie

Dartmouth Scholarship

A physiologically characterized radiolabeled neurotoxin complex obtained from venom of the scorpion Leiurus quinquestriatus has been used to identify detergent-solubilized presumptive sodium channel components in sucrose gradients. This toxin-binding component is found in extracts prepared from three sources of excitable membrane but appears to be absent from similar extracts prepared from nonexcitable membrane or from Torpedo californica membrane. Procedures that destroy the physiological activity of the Leiurus neurotoxin lead to a corresponding loss of toxin binding to the putative sodium channel component. The major component recognized by the Leiurus toxin sediments at 6.5 S. Scatchard analysis of quantitative binding experiments …


Human Performance Lab Newsletter, Vol. 1, No. 1, St. Cloud State University Nov 1981

Human Performance Lab Newsletter, Vol. 1, No. 1, St. Cloud State University

Human Performance Lab Newsletter

This issue mentions prior issues of the newsletter but is number Volume 1, Number 1.

Contents for this issue:

  • Advisory Board
  • Historical Overview of the Human Performance Program
  • Fund Raising Plan
  • Morning Exercise Program
  • Aerobic Dance
  • Six-month Testing Program
  • Calories Replace Points
  • Duration of Training Session


Occurrence Of Psilocybin/Psilocin In Pluteus Salicinus (Pluteaceae), Stephen G. Saupe Jul 1981

Occurrence Of Psilocybin/Psilocin In Pluteus Salicinus (Pluteaceae), Stephen G. Saupe

Biology Faculty Publications

No abstract provided.


The Isolation Of Ecdysterone Inducible Genes By Hybridization Subtraction Chromatography, Michael P. Vitek, Susan G. Kreissman, Robert H. Gross Mar 1981

The Isolation Of Ecdysterone Inducible Genes By Hybridization Subtraction Chromatography, Michael P. Vitek, Susan G. Kreissman, Robert H. Gross

Dartmouth Scholarship

We have developed a procedure for selectively enriching a mRNA population for inducible sequences. Other than the induced mRNA species, the population of mRNA in control cells is approximately the same as the mRNA population in induced cells. Cytoplasmic mRNA from control cells is bound to oligo (dT)-cellulose and used as a template for reverse transcriptase, the oligo (dT) serving as a primer. After removing the template mRNAs, the cDNA-cellulose column is used to hybridize a population of mRNAs from induced cells. The non-hybridized poly A + RNAs are greatly enriched in the inducible sequences. We have used this technique …


Fight For Alternatives Gathers Momentum: Commitments To Help Lab Animals Are Extracted From Industry And Government Mar 1981

Fight For Alternatives Gathers Momentum: Commitments To Help Lab Animals Are Extracted From Industry And Government

Close Up Reports

The Humane Society of the United States wants to see an eventual end to all pain and suffering inflicted on animals in the laboratory. We are working hard to make this happen, and the "alternatives" concept is basic to our program. We want scientists to find alternative methods of testing and experimentation that do not involve the use of animals.


Dickey-Lincoln School Lakes Project At Dickey, Maine : Final Environmental Statement, New England Division, United States Army Engineer Division Jan 1981

Dickey-Lincoln School Lakes Project At Dickey, Maine : Final Environmental Statement, New England Division, United States Army Engineer Division

Dickey-Lincoln School Lakes Project

This document contains those comments and responses on the Revised Draft Environmental Impact Statement. It is a continuation of Volume II published by the Corps in 1978. In addition, it contains reproductions of those letters of comment received on the March 1980 Draft Fish and Wildlife Mitigation Plan, and the responses to these comments.


Allergenicity Of Various Peanut Products As Determined By Rast Inhibition, Julie A. Nordlee, Steve L. Taylor, R. T. Jones, John W. Yunginger Jan 1981

Allergenicity Of Various Peanut Products As Determined By Rast Inhibition, Julie A. Nordlee, Steve L. Taylor, R. T. Jones, John W. Yunginger

Department of Food Science and Technology: Faculty Publications

Extracts of 19 different peanut products and peanut oil were tested for their allergenicity by the radioallergosorbent test inhibition assay using a crude peanut extract from raw peanuts as the standard for comparison. Seventeen of the extracts were able to competitively inhibit the binding of serum IgE from peanut-sensitive patients with the solid-phase raw peanut extract. Peanut oil and the extract from hydrolyzed peanut protein did not inhibit binding, which suggests that these products are not allergenic. The peanut hull flour extract showed a slight ability to inhibit binding, suggesting that this product contains minor amounts of the peanut allergen.


Loose Smut Of Barley. Sub-Clover Root Rot. Rapeseed Diseases., M. J. Barbetti Jan 1981

Loose Smut Of Barley. Sub-Clover Root Rot. Rapeseed Diseases., M. J. Barbetti

Experimental Summaries - Plant Research

Loose smut of barley. Fungicidal control of loose smut in barley – 81MT31, 81NA29. Sub-clover root rot. Fungicidal control of pythium sp – 81AL37, 81BU3. Rapeseed diseases. 1. Rapeseed varieties/Lancelin blackleg strain – 81MO24. 2. Rapeseed varieties/Sclerotinia disease – 81MT32. 3. White leaf spot and grey stem of rapeseed – 81MT33.


Barley Disease, Scald, Spot Type Net Blotch, Powdery Mildew, Leaf Diseases, Double Cropping, Resistance Of Cvt Barley, T N. Khan Jan 1981

Barley Disease, Scald, Spot Type Net Blotch, Powdery Mildew, Leaf Diseases, Double Cropping, Resistance Of Cvt Barley, T N. Khan

Experimental Summaries - Plant Research

I. Barley disease survey and an unidentified disorder on forrest barley. II. Scald: crop loss assessment – 81BA20, 81A17, 81MT23, 81WH30, 81A17, 81BA20, 81MT23, 81WH30, III. Scald: epidemics in simulated populations segregating for scald resistance – 81BA22, 81MT25, 81BA22, 81MT25. IV. Scald: reactions in single plant and hill plots – 81MT24, 81MT21, 81BA21, V. Spot type net blotch: crop loss assessment – 81C17. VI. Net blotch: effect of grazing on infection levels – 81A20. VII. Powdery mildew: crop loss assessment – 81PE5. VIII. Value of whole plot scores in assessing leaf diseases. IX. Disease and yield in simulated double cropping …


Septoria Diseases Of Wheat, A. G. P. Brown Jan 1981

Septoria Diseases Of Wheat, A. G. P. Brown

Experimental Summaries - Plant Research

Effect of stubble on septoria infection. Avondale, Badgingarra, Chapman, Esperance, Kojonup, Mt Barker, Newdegate, Wongan - 81BA47, 81BA48.


Growth Regulator Trials. Part 1, M W. Perry, R N. Weir Jan 1981

Growth Regulator Trials. Part 1, M W. Perry, R N. Weir

Experimental Summaries - Plant Research

This summary covers 1981 trials on chlormequat plant growth regulant (formulated as Cycocel 750A or Halloween), ECO organic seed dressing and a range of organic foliar sprays. Rates and times of application of chlormequat on wheat. 81A22, 81BA3, 81Cl8, 81E25, 81M22, 81MT2, 81N4, 81SG36, 81WH4. Effects of chlormequat on wheat varieties (S4 trials). 81A6, 81BA7, 81C6, 81E6, 81M9, 81M13, 81MT9, 81N10, 81SG26, 81WH19. Trials comparing organic seed treatments, organic foliar sprays and plant growth regulators. 81WH61, 81LG34, 81LG48, 81ME27a, 81ME276, 81TS39, 81ES51, 81ES52, 81ES53, 81ES54, 81NA57, 81N4A, 81MT2A, 81TS38A. H. McCashney, Cadoux Un-numbered, Newdegate Research Station.


Ethical Concerns In Primate Use And Husbandry, Ardith A. Eudey Jan 1981

Ethical Concerns In Primate Use And Husbandry, Ardith A. Eudey

Experimentation Collection

Subsequent to World War II, a dramatic increase occurred in the utilization of nonhuman primates in biomedical and psychological research and industry. At the same time field studies on the ecological and social behavior of natural populations of primates also increased, making possible more realistic assessments of both the behavioral potentiality of primate populations and their conservation status. In spite of the growing body of information indicating the endangered or threatened status of most species, many laboratory workers and planning agencies continue to regard primates as renewable resources, even seeking to bypass protective legislation in habitat countries to obtain them. …


Biomedical Research And Animal Welfare: Traditional Viewpoints And Future Directions, Franklin M. Loew Jan 1981

Biomedical Research And Animal Welfare: Traditional Viewpoints And Future Directions, Franklin M. Loew

Experimentation Collection

It has been twenty years since C.P. Snow first presented the concept of "The Two Cultures"; referring to the "culture" of scientists and the "culture" of literary intellectuals (mainly writers), Snow said (1969):

... constantly I felt I was moving among two groups- comparable in intelligence, identical in race, not grossly different in social origin, earning about the same incomes, who had almost ceased to communicate at all, who in intellectual, moral and psychological climate had so little in common ...

In some ways, "Two Cultures" goes far to characterize the current state of affairs surrounding those whose scientific endeavors …


Diseases Of Lupins And Lupinosis., P Mcr Wood Jan 1981

Diseases Of Lupins And Lupinosis., P Mcr Wood

Experimental Summaries - Plant Research

Summary of experimental results, 1981. Geraldton: Brown spot (Pleiochaeta setosa) was widespread. Root rots were not considered generally to be a problem in 1981.Three Springs: Fungal root rots were commonly observed. Brown spot leaf and stem infection was also prevalent. Moora: Brown spot was the most prevalent. Northam: Crops were generally healthy. Albany: Crops were generally healthy Sclerotinia being present. Bridgetown: Brown spot was the main disease present. Root rots were also present. In December, a widespread disorder occurred, Late brown spot infection is suspected. An important point emerging from the programme is that often the lines showing Phomopsis resistance …


Clover Scorch Fungicide Trials, Cercospora Leaf Spot, Facial Eczema Investigation., A Bokor Jan 1981

Clover Scorch Fungicide Trials, Cercospora Leaf Spot, Facial Eczema Investigation., A Bokor

Experimental Summaries - Plant Research

Clover scorch fungicide trials – 81AL33, 81D8. Cercospora leaf spot – 81AL35. Facial eczema investigation - In W.A. a serious outbreak of this disease has occurred on mixtures of annual and perennial species in the autumn.


A Technique For Physiologically Age-Grading Female Stable Flies, Stomoxys Calcitrans (L.), P. J. Scholl Dec 1980

A Technique For Physiologically Age-Grading Female Stable Flies, Stomoxys Calcitrans (L.), P. J. Scholl

Historical Research Bulletins of the Nebraska Agricultural Experiment Station

A method of dissection followed by staining was initiated to allow physiological age- grading based on ovarian development in order to more completely describe the physiological development of adult female stable flies [Stomoxys calcitrans (L. )]. The gonotrophic developmental continuum from a non-differentiated cell in teneral females to mature eggs at the time of oviposition was first arbitrarily divided into six stages by using distinct landmarks within the developing oocyte . Then, nulliparous, uniparous, and biparous+ females were differentiated on the basis of the presence or absence of stained follicular relics in the ovariole sheaths. The combination of the …


Beyond Conspecifics: Is Brer Rabbit Our Brother?, Gordon Burghardt, Harold Herzog Nov 1980

Beyond Conspecifics: Is Brer Rabbit Our Brother?, Gordon Burghardt, Harold Herzog

Experimentation Collection

Today, on many fronts, there is renewed interest in our relationship with nonhuman animals. Many factors have contributed to this concern. Environmental and ecological awareness has drawn public attention to the near extermination of many species and the detrimental effects of pollution, pesticides, and habitat destruction. The inefficiency of transmuting vegetable protein to meat has added to the traditional moral arguments of vegetarians. The widespread questioning of government support for basic research has been intertwined with suspicions about the use and worth of any studies on animals, even those purporting to help understand human medical and behavioral problems. New evidence …


Geophysical Surveys For Buried Waste Detection At The Idaho National Engineering Laboratory, U.S. Department Of Energy Jan 1980

Geophysical Surveys For Buried Waste Detection At The Idaho National Engineering Laboratory, U.S. Department Of Energy

All U.S. Government Documents (Utah Regional Depository)

This report describes a series of geophysical surveys performed at the Idaho National Engineering Laboratory (INEL). The main purpose of the surveys was to evaluate techniques, principally ground-penetrating radar, for detecting and mapping radioactive wastes buried in shallow trenches and pits.


Screening Of Clovers For Resistance To Clover Scorch, D. L. Chatel Jan 1980

Screening Of Clovers For Resistance To Clover Scorch, D. L. Chatel

Experimental Summaries - Plant Research

Clover Scorch (Jointly with Dr C.M. Francis). One thousand four hundred and seventy six legumes were screened in the field at the Denmark Research Station for susceptibility to clover scorch. They comprised 1440 subterranean clovers, eight other Trifoliums, two medics and 26 serradellas. The clovers from Australia gave interesting results. Thirty four of them were selections of Seaton Park, chosen by R.C. Rossiter and W. J. Collins on the basis of their variation. They did not differ in their reaction to clover scorch; all gave rating of 9. Twenty-six lines of Woogenellup from W.A. and 12 of Woogenellup and Morrar …


Legume Diseases, P Mcr Wood Jan 1980

Legume Diseases, P Mcr Wood

Experimental Summaries - Plant Research

Lupin root disorder. Resistance to lupins to Phomopsis leptostromiformis (Fungal ratings by P. McR. Wood and F.M. O'Donnell, data compiled by J. Hamblin, Plant Production Division) Phomopsis levels on any particular genotype are influenced by environment. Therefore material selected for Phomopsis resistance is done so on its being better than average over all sites. Data for the Plant Breeders' S2-l trial at Avondale (ARS), Badgingarra (BRS), Chapman (CRS), Esperance (ERS) and Mt. Barker (MTRS) are shown in Table 3.


Live Animals In Car Crash Studies, Nancy Heneson Jan 1980

Live Animals In Car Crash Studies, Nancy Heneson

Experimentation Collection

The scientific rationale for using live animals in car crash studies proceeds from the argument that comparative biomedical and biomechanical data are needed to develop an instrumented dummy, or anthropomorphic test device, which will provide reliable, reproducible information for designing safe cars. The animal studies are thus not really ends in themselves, i.e., they do not supply data which can be readily applied to real situations. Instead, they contribute to a pool of information which is supposed to lead to the perfecting of an experimental subject (the instrumented dummy) which will eventually render the further use of Iive animals unnecessary.


Nsmr: Its Image, Direction And Future, J. Russell Lindsey Jan 1980

Nsmr: Its Image, Direction And Future, J. Russell Lindsey

Experimentation Collection

The point I wish to emphasize is that NSMR, like all of its predecessors representing the scientific community, has consistently maintained a defensive posture while claiming that a// practices of animal use and care within the biomedical community have been "lily white." In my judgment, this has been a major tactical error because abuses of freedoms to use animals in research too frequently have been and continue to be common knowledge (e.g., Science, Editorial, 1976). NSMR's complete unwillingness to face up to these realities and torespond positively to the public's legitimate concerns has led to the inevitable loss of credibility …


Ethology And Laboratory Animal Welfare, James A. Cohen Jan 1980

Ethology And Laboratory Animal Welfare, James A. Cohen

Laboratory Experiments Collection

At its annual conference, held this June at Colorado State University in Fort Collins, the Animal Behavior Society (ABS) passed a resolution opposing HR 4805, a bill which would establish a National Center for Alternative Research to develop and coordinate alternative methods of research and testing which do not involve the use of live animals. The ABS, which represents some 1750 North American animal behavior researchers, took issue with the bill on the grounds that: a) it discourages replication of previously-obtained results, b) there are currently no satisfactory substitutes for live animals in behavioral research, c) it would complicate and …


Laboratory Animals And Alternatives In The 80'S, Andrew N. Rowan Jan 1980

Laboratory Animals And Alternatives In The 80'S, Andrew N. Rowan

Laboratory Experiments Collection

No abstract provided.


Pain-Infliction In Animal Research, Dorothy Tennov Jan 1980

Pain-Infliction In Animal Research, Dorothy Tennov

Experimentation Collection

A summary of research outlining the main sources of pain and stress to animals in laboratories provides the background for the results of a survey conducted by the author on how students feel about experimentation involving animals. The psychological aspects of student reaction to animal experimentation are examined. The conclusion outlines specific recommendations on ways to minimize pain and discomfort of laboratory animals.


Effects Of Organic Compounds On Amphibian Reproduction, Wesley J. Birge, Jeffrey A. Black, Robert A. Kuehne Jan 1980

Effects Of Organic Compounds On Amphibian Reproduction, Wesley J. Birge, Jeffrey A. Black, Robert A. Kuehne

KWRRI Research Reports

Aquatic toxicity tests were conducted with atrazine, carbon tetrachloride, chloroform, methylene chloride, trisodium nitrilotriacetic acid (NTA), and phenol. Each compound was administered to developmental stages of three to five amphibian species. Exposure was initiated at fertilization and maintained through 4 days posthatching. Test responses included lethality and teratogenesis. Different amphibian species exhibited varying degrees of tolerance to the selected compounds. Greatest tolerance usually was observed for the more broadly adapted semi-aquatic and terrestrial species (e.g., Bufo americanus, Bufo fowleri). The more sensitive amphibians usually included those species which normally are restricted to aquatic or moist habitats (e.g., Rana …


Amputation Of Vibrissae In Show Dogs, Thomas E. Mcgill Jan 1980

Amputation Of Vibrissae In Show Dogs, Thomas E. Mcgill

Veterinary Science and Medicine Collection

Dogs of many different breeds competing in the show-ring are routinely subjected to amputation of the vibrissae, organs that are commonly and incorrectly called "whiskers." This procedure is thought to give the animal's head a cleaner look, which in turn supposedly increases its chances of winning. There are several tricks involved in "whisker trimming" since the animals can retract each vibrissae at least one-quarter inch. Furthermore, they often object strenuously to the operation.


1980 Beef Cattle Report, Leo E. Lucas Jan 1980

1980 Beef Cattle Report, Leo E. Lucas

Nebraska Beef Cattle Reports

Weighing steers three consecutive days at the beginning and end of the trial reduced variation and increased the probability of detecting a difference in daily gain and gain/protein ratios between treatments when compared to a standard weighing method (once at the beginning and once at the end of the trial). Regressing 1 initial, 1 final and 11 weekly weights also decreased variation and increased the probability of detecting treatment differences compared to the standard method, but was more variable than using three weights at the beginning and end of the trial.

Young, growing steers and lambs supplemented with natural protein …