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The Role Of The Professional Geographer In Geographic Learning, Salvatore J. Natoli

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Professional geographers have had a traditional interest and role in geographic learning. Specifically, the professional geographer referred to is the university or college professor who considers upper division teaching, graduate level teaching, and research as his primary responsibilities.

Experiences and attitudes occupy key positions in determining broader participation of professional geographers in geographic learning.

The professional geographer must view his role within a broader context .. that of the entire educational experience. In addition he must reexamine the goals of education and his roles within them rather than rest upon his scholarly credentials. He must help to provide the public …

Lice Of Public Health Importance And Their Control, Harry D. Pratt, Kent S. Littig

Harold W. Manter Laboratory of Parasitology: Library Materials

Lice have been intimately associated with man for centuries. Infestations with lice occur today in the United States and many other countries despite great efforts to maintain high standards of public health. Public health agencies are often called upon if infestations include or expose large groups of people, particularly those in public institutions such as schools, jails, hospitals, or homes for the aged.

The three sucking lice that infest humans are: the body louse (Pedlculus humanus humanus), the head louse (Pediculus humanus capitis), and the crab louse (Pthirus pubis). The body louse is the …

Drift Of Terrestrial Arthropods In An Irrigation Canal Following A Wide-Area Application Of Ulv Malathion, Dewey Urbauer, K. P. Pruess

Department of Entomology: Faculty Publications

Numbers of arthropods drifting in an irrigation canal were recorded at 30-min intervals during and after an upstream application of ULV malathion. Flower-visiting and parasitic Hymenoptera were the first insects to increase; a bimodal drift pattern resulted from an interruption in the spray application. Diptera exhibited a delayed response but the numbers collected, especially Paracantha culta (Wiedemann), suggest high susceptibility. Ants occurred in large numbers over a long period, but mortality was probably low. Miridae and Cicadellidae were probably more susceptible than Orthoptera and adult Odonata but had similar delayed drift patterns. Tetragnathidae were the most, and Thomiscidae the least, …

Nebraska Groundwater Level (Decline & Rise), 1973

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Evaluation Of Nitrate Content Of Ground Water In Hall County, Nebraska, Rauf Piskin

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Control Of Leaf-Feeding Insects On Yellow-Poplar, E. A. Heinrichs, E. E. Burgess, Ellis L. Matheny Jr.

Department of Entomology: Faculty Publications

Yellow-poplar, Liriodendron tulipifera L., also known as the tulip-poplar, is an important source of pulpwood and saw timber, and it is widely used as a shade tree. Numerous insect species attack the foliage of yellow-poplar. In 1965, Odontopus calceatus (Say) was first observed seriously damaging yellow-poplar in Tennessee (Russell and Stanley 1967). Defoliation was so severe at the University of Tennessee Oak Ridge Forest Experiment Station that growth reduction was attributed to this pest (Buckner 1972). In 1967, observations by one of us (E.A.H.) indicated that several other insects attack yellow-poplar leaves during the spring. Infestations of the aphid Macrosiphum …

Two Species Of Bats New To The Fauna Of Trinidad, Hugh H. Genoways, Robert J. Baker, R. S. Loregnard

University of Nebraska State Museum: Mammalogy Papers

Goodwin and Greenhall (1961) in their monograph of the bats of Trinidad and Tobago recorded 58 species of chiropterans from the island of Trinidad. In two subsequent publications (Goodwin and Greenhall, 1962, 1964) these authors recorded Mesophylla macconnelli, Prornops nasutus, and Phylloderma stenops from Trinidad bringing the number of species known from the island to 61. In August 1967, one of us (R. J. Baker) and Larry Deaven netted bats on Trinidad in connection with ongoing studies of chiropteran karyology, and obtained two species not previously recorded.

Ecological Distribution Of Breeding Waterfowl Populations In North Dakota, Robert E. Stewart, Harold A. Kantrud

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

The distribution of breeding waterfowl populations on various wetland habitat types was investigated in North Dakota during 1967-69. Data were obtained by stratified random sampling techniques. The total wetland acreage in North Dakota was estimated to be about 3.2 million acres. Natural basin wetlands comprised about 77 percent of the acreage and 91 percent of the number of wetlands in the state and were utilized by about 76 percent of the state's breeding duck population. Among the four biotic regions of the state, numerical and areal composition of wetlands varied considerably. Natural basin wetlands varied from a low of about …

An Incident Of Fenthion Mosquito Control And Subsequent Avian Mortality, Robert Seabloom, Gary Pearson, Lewis Oring, James Reilly

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Mass mortality among migratory birds at Grand Forks, North Dakota, was attributed to a mosquito control operation employing the insecticide fenthion. The factors involved may have included the toxicity of the pesticide for birds, the method of application and coincidence with the peak of the spring warbler migration.

Device For Obtaining From Small Ponds Water Samples Or Lagoons, J. Kent Mitchell, Elbert C. Dickey

Department of Agricultural and Biological Systems Engineering: Faculty Publications

A research project was recently initiated which requires that water quality samples be taken from small ponds and lagoons in west-central Illinois. A method for obtaining these pond water samples was desired that could be handled conveniently by one person and would not require a small boat. The pond water sampler described here was developed to satisfy this need.

The sampler developed allows one person to obtain a water sample at any desired depth while remaining on the shore. After assembling the device it may be floated to any position on the pond surface, lowered to the desired depth, and …

Sampling Pond Water Without A Boat, Elbert C. Dickey, J. Kent Mitchell

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Nitrate levels in farm ponds are determined with the aid of a water sampler that can be operated from the shore

The quality of pond water in southern and western Illinois is being determined with the aid of a new type of water sampler developed in the Department of Agricultural Engineering.

Work on the sampler began as part of a study of water supplies in Washington County. This study, which is being conducted through the College of Agriculture Council on Environmental Quality, was initiated in the winter of 1970, after high nitrate levels were found in the county's water supplies. …

Characterization Of A Fatty Acid Synthetase From Corynebacterium Diphtheriae, Herman W. Knoche, Kirston E. Koths

Department of Biochemistry: Faculty Publications

A fatty acid synthetase from Corynebacterium diphtheriae has been purified to a specific activity of 450 nmoles of malonyl coenzyme A incorporated per min per mg. The enzyme is optimally active in 0.5 M phosphate buffer. C. diphtheriae appears to be the most primitive organism having a multienzyme complex for fatty acid synthesis.

Palmityl Coenzyme A Inhibition Of Fatty Acid Synthesis, Herman Knoche, Theodore W. Esders, Kirston Koths, Konrad Bloch

Department of Biochemistry: Faculty Publications

The effects of acyl-CoA derivatives (C₈ to C₂₀) on the activity

of the fatty acid synthetases from yeast and Corynebacterium

diphtheriae have been examined. Both enzyme

systems are inhibited by the longer chain acyl thioesters

(C₁₆ to C₂₀) and protected against this inhibition by bovine

serum albumin (BSA). Identical relief from acyl-CoA inhibition

is provided by the 6-0-methylglucose-containing

lipopolysaccharide (MGLP), from Mycobacterium phlei. It

is shown that MGLP forms a stable complex with palmitylCoA.

This interaction accounts for the BSA-like effects of

the polysaccharide. BSA and MGLP have two further effects

on the fatty …

Anthelmintics For Nematode Parasites Of Fish: I. Control Of Sterliadochona Pedispicula In Salmo Gairdnerii By Diethyl 2-Chlorovinyl Phosphate And 2,2 Dichlorovinyl Dimethyl Phosphate Pellets, A. R. Maggenti

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Tests indicate that the oral administration of diethyl 2-chlorovinyl phosphate (SD1836) and 2,2 dichlorovinyl dimethyl phosphate (DDVP) plastic-incorporated pellets significantly reduces the intestinal nematode parasite Sterliadochona pedispicula in wild rainbow trout. No evidence of fish toxicity was noted with the treatments and dosages tested.

Anthelmintics For Nematode Parasites Of Fish: Ii. Aqueous Anthelmintic Bath Treatments Using Diethyl 2-Chlorovinyl Phosphate And 2,2 Dichlorovinyl Dimethyl Phosphate For Control Of Sterliadochona Pedispicula In Salmo Gairdnerii, A. R. Maggenti

Harold W. Manter Laboratory of Parasitology: Faculty Publications

The toxicity of diethyl 2-chlorovinyl phosphate (SD1836) and 2,2 dichlorovinyl dimethyl phosphate (DDVP) was tested as an "in-water" treatment of rainbow trout and in vitro against the internal nematode parasite of fish, Sterliadochona peclispicula. As an "in-water" anthelmintic treatment SD1836 was 100% effective at concentrations of 25 fL liters/liter for 24 hr and 5 μ liters/liter for 72 hr; no toxic effects to rainbow trout were noted with these treatments.

Acanthobothrium Urolophi Sp. N., A Tetraphyllidean Cestode (Oncobothriidae) From An Australian Stingaree, Gerald D. Schmidt

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Acanthobothrium urolophi sp. n. is described from a common stingaree, Urolophus testaceus, from South Australia. It differs from all other species in being apolytic and acraspedote, in having hooks 105-115 μ- long, one accessory sucker 80-90 wide on each bothridinm, and 40-72 testes in two longitudinal rows.

Parasites Of Some Penaeid Shrimps With Emphasis On Reared Hosts, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Information is presented about parasites and commensals of penaeid shrimps, allowing those who rear shrimps and those who are interested in associated organisms of shrimp to have a better knowledge of the organisms that are or may be associated with brown, white, and pink shrimps. It covers common and rare organisms and diseases, primarily in the northern Gulf of Mexico, listing several previously unreported species including an undescribed gregarine, a larval nematode (Spirocarnallanus pereirai), a commensal nematode (Leptolaimus sp.), a leech (Myzobdella lugubris), a blue-green alga (Schizothrix calcicola), a hydroid (Obelia bicuspidata …

Plagioporus Hypentelii Sp. N. (Trematoda: Opecoelidae) From The Hogsucker, Hypentelium Nigricans (Lesueur) (Osteichthys: Catostomidae), Sherman S. Hendrix

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Plagioporus hypentelii sp. n. (Trematoda: Opecoelidae) is described from the intestine of the hogsucker, Hypentelium nigricans (LeSueur), in streams of Adams County, Pennsylvania. It most closely resembles P. serotinus Stafford, 1904, but differs from it chiefly in its less elongate shape, smaller size, smaller testes, ovary, and eggs, straight cirrus sac, in hosts and geographic location of the hosts.

Proximate And Ultimate Determinants Of Clutch Size In Anatidae, Paul A. Johnsgard

Paul Johnsgard Collection

In a stimulating analysis, Lack (1967, 1968a) reviewed waterfowl clutch size and egg size data, and concluded that interspecific variations in average clutch size are generally inversely related to those of relative egg size. Thus, he suggested that the average clutch size of each waterfowl species has evolved in relation to the average availability of food to the female around the time of nesting. He hypothesized that in waterfowl, relatively large eggs have probably evolved to provide the newly-hatched young with a large food supply (an idea he subsequently (1968b) questioned) or with an adequate insulating layer of fat. He …

Fiscal Federalism: Program Budgeting And The Multilevel Governmental Setting, F. Gregory Hayden

Department of Economics: Faculty Publications

The purpose of this article is to determine what theoretical and policy conclusions are consistent with the orthodox theory of social and merit wants, the treatment of distribution as a component of efficiency, and a Planning-Programming-Budgeting System when they are placed in a federalist setting with states’ rights and local autonomy. The conclusion is that neither matching nor equalization grants should be used in intergovernmental fiscal relations and that use of traditional intergovernmental fiscal devices will not assure success of a programmed budget.

Planning College Geography Facilities: Guidelines For Space And Equipment, Robert Stoddard

Geography Program: Faculty Publications

This publication is written as a guide for evaluating and planning the space and equipment available for geographic education in an undergraduate college. The objectives are:
(1) to present ideas about potential facilities for various kinds of geographic programs;
(2) to provide information to administrators and architects about special space and equipment needs of geography; and
(3) to serve as a guide for geographers planning new (and remodeled) facilities.
vIt is hoped that readers may gain ideas about potential facilities for geography. No "ideal" departmental plan is presented because there is no one such plan for all departments. The use …

Production And Decay Of Double L Vacancies In Argon And Phosphorus, M. Eugene Rudd, B. Fastrup, P. Dahl, F. D. Schowengerdt

M. Eugene Rudd Publications

Measurements have been made at two laboratories which indicate that the structure reported at 450-550eV in the electron spectrum from Ar⁺-Ar collisions by Ogurtsov, Flaks, and Avakyan is spurious. It is argued that the double L vacancies which they invoke to explain the structure are more likely to decay by the two-step Auger process L ²→LM²→M⁴ than by the one-step process L²→M³ suggested by these authors. Evidence supporting this is found in our electron spectra from P⁺-Ar collisions, where it is known from energy-loss and charge-state measurements that double …

A Crystalline Fragment Of The Double Helix: The Structure Of The Dinucleoside Phosphate Guanylyl-3',5'-Cytidine, Roberta Ogilvie Day, Nadrian C. Seeman, John M. Rosenberg, Alexander Rich

Department of Chemistry: Faculty Publications

The sodium silt of guanylyl-3',5'-cytidine crystallizes in a monoclinic unit cell with one molecule in the asymmetric unit. Each molecule is related to another molecule by a 2-fold rotation axis which results in the formation of an antiparallel; right-handed .double helix with complementary hydrogen bonding between the guanine and cytosine residues. The crystal is heavily hydrated with 36 water molecules in the unit cell. The geometry of this crystalline double helix is. very similar to those which have been derived from studies of fiber x-ray diffraction patterns of double-stranded RNA; even though the latter do not yield data at atomic …

Nature And Cause Of Yellow Film Occurring On Dairy Equipment, R. B. Maxcy

Department of Food Science and Technology: Faculty Publications

A yellow film of milkstone developed on a laboratory system that simulated unclean stainless steel surfaces. Cursory washing or presoiling with phospholipids and subsequent growth of Pseudomonas sp. in a milk film produced the yellow color in 1 to 2 days. Sequence of treatments, microenvironmental conditions, and microbial growth contributing to the formation of the yellow film were determined, Pseudomonas sp. was isolated from laboratory developed yellow films and from milk soil deposits on farm equipment. The overall requirements for the production of yellow films were: a) inadequate cleaning or a presoil of phospholipids, b) growth of Pseudomonas sp., c) …

Regional Hydrothermal Alteration Of The Leadville Limestone (Mississippian) Of Central Colorado, L. V. Benson

United States Geological Survey: Staff Publications

Massive metallic-sulfide deposits were implaced in the Leadville Limestone {Mississippian) of Central Colorado less than 70 million years ago. The thermal fluids which precipitated ore at Gilman, Colorado have regionally altered the Leadville Limestone. The sequence of alteration began with the recrystallization of limestone to a dark medium~grained dolomite containing a homogeneous distribution of Fe. This Was followed by partial recrystallization of the medium-grained dolomite to coarse-clear dolomite which contains an inhomogeneous distribution of Fe. The resulting banded rock is known as "zebra rock" . Precipitation of Si0 2 (jasperoid) occurred next. The jaspe=oid formed prior to the deposition of …

Competency To Stand Trial In Nebraska, Wayne Kreuscher

Nebraska Law Review

In Nebraska the procedure for determining whether a defendant is mentally competent to stand trial is discretionary with the court. Unlike the New York Criminal Procedure Law, described by H. H. A. Cooper in the preceding article ("Fitness to Proceed: A Brief Look at Some Aspects of the Medico-Legal Problem under the New York Criminal Procedure Law", the Nebraska statutes do not require a judge to order a psychiatric examination of a defendant whose mental competency to stand trial or to be sentenced is in doubt. Cooper's basic message is that judges must be aware that mental competency is neither …

Fitness To Proceed: A Brief Look At Some Aspects Of The Medico-Legal Problem Under The New York Criminal Procedure Law, H. H. A. Cooper

Nebraska Law Review

The New York Criminal Procedure Law, which came into force on September 1, 1971, introduced two concepts which it proceeded to define successively: the "incapacitated person" and the "dangerous incapacitated person." The medico-legal problems, of which some aspects are to be considered here, reside in the identification of those persons and the application to them of the procedural steps, which the legislation prescribes in their case. It is proposed here to examine some of the problems facing the lawyer and the psychiatric examiner in relation to the "incapacitated person" as defined by the Criminal Procedure Law. It is necessary to …

New Horizons In Professional Responsibility, Richard B. Allen

Nebraska Law Review

In the last five years the organized bar in the United States—represented by the American Bar Association, which provided the leadership, and by the state bars, which have given staunch support to the ABA—has moved forward to two major and sweeping decisions for change and progress and appears well on the way to a third. The first to come to fruition was the Code of Professional Responsibility, the landmark reformulation of the ethical standards of the legal profession adopted by the ABA House of Delegates in 1969, and now in effect either as court-adopted rules or as rules adopted by …

Limitations Of Liability Within Uninsured Motorist Insurance Policies And Their Validity Under Mandatory Statutes, James E. Pansing

Nebraska Law Review

With the widespread adoption of mandatory uninsured motorist protection statutes, courts were asked to construe certain provisions of the standard policy which sought to limit the recovery by an insured to that which he would have received from the uninsured motorist had he been insured to the minimum limits prescribed by the financial responsibility law. A slight majority of the courts have looked with disfavor on such limitations, generally relying on public policy arguments. The others have upheld the provisions, appealing to what they concluded was the real purpose of the legislation. The purpose of this article is to summarize …

Financing Public Education: Recent Developments And The Outlook For Nebraska, Kenneth Stephan, Richard Wegener

Nebraska Law Review

Since 1968 suits have been filed in at least ten states alleging that public school financing systems which rely primarily on local ad valorem property taxes are unconstitutional in that they violate the equal protection clause of the Fourteenth Amendment. The legal basis for this contention is that these systems make the quality of education dependent upon the wealth of the particular school district, thereby favoring school children who happen to live in a district having high property values and discriminating against children who live in districts having relatively little assessable property. Two basic social principles are involved: (1) the …