Digital Commons Network^™

Circadian Organization And Microbiology: Variance Spectra And A Periodogram On Behavior Of Escherichia Coli Growing In Fluid Culture, Franz Halberg, Robert L. Conner

Journal of the Minnesota Academy of Science

Over three decades ago Rogers and Greenbank (1) published observations on intermittent growth in a bacterial culture. These interesting data are analyzed further in this report by computational procedures ( 2-8) designed for detecting and evaluating the significance of nearly periodic phenomena. By such methods, circadian (about 24-hour) periodicity in a culture of E. coli is unmasked as a significant component of the recorded changes. These results extend the already broad scope of circadian temporal organization in microbiology.

An Investigation Of Possible Commensalism In Red Squirrels, Yellow-Bellied Sapsuckers, And Humming-Birds At The Lake Itasca Biological Station, John C. Coulter

Journal of the Minnesota Academy of Science

This is an investigation of a relationship noted at the Lake Itasca Biological Station. It was noted that the Red Squirrel, Tamiasciurus hudsonicus, in some locations spent a considerable amount of time lapping sap from the rows of holes drilled in the White Birch, Betula papyrifera, by the Yellow-bellied Sapsuckers, Sphyropious varius varius (L.). After the invasion of the red squirrel the sapsuckers and the Ruby-throated Hummingbird, Archilochus colubris (L.) continued to utilize the same food supply as well as a considerably number of insects. The two general objectives of this endeavor were then to investigate some of the related …

The Use Of Different Embryos In Studying The Development Of Man, John C. Bartone

Journal of the Minnesota Academy of Science

The early development of man (embryology) is generally taught with the use of embryos of different animals. Human embryos are seldom used. This is true in the medical, graduate and undergraduate curricula. The primary reason for this utilitarian approach is simply because human embryos are generally not obtainable in numbers sufficient for the wide distribution necessary for all colleges and universities. Another reason is that fairly good substitutes are available to exhibit the early embryological stages of development of man. Some of these substitutes are embryos of the chick, frog and pig.

Minor Elements Can Be Overdone, L T. Jones

Journal of the Department of Agriculture, Western Australia, Series 4

T H E term "minor elements" which is now commonly used and well understood by farmers and gardeners, refers to the five essential plant foods—copper, zinc, manganese, molybdenum and boron.

These five essential plant foods are needed by all plants in minute quantities and it is relatively easy to use them in excess of actual requirements or even in toxic amounts.

In practice this is not usually a problem with cereals and pastures. The important exception is when zinc alone is added to a cereal crop low in copper and the extra zinc accentuates the copper deficiency, and poorer yields …

Honey Flora Calendar For May, R S. Coleman

Journal of the Department of Agriculture, Western Australia, Series 4

Flora available in May

Trees Of Western Australia. 87. Eucalyptus Kruseana F. Muell. 88. Eucalyptus Macrandra F. Muell. Ex. Benth. 89. Mallalie. 90. The Rose Mallee (Eucalyptus Rhodantha Blakely And Steedman), Charles Austin Gardner

Journal of the Department of Agriculture, Western Australia, Series 4

THIS very decorative shrub was described by Baron von Mueller in the Australian Journal of Pharmacy in 1895 from specimens collected in the Fraser Range.

Vermin Symposium Report : Wanted : A New Approach To Rabbit Control, A R. Tomlinson

Journal of the Department of Agriculture, Western Australia, Series 4

THE main reason why rabbits have not increased as rapidly as their amazing capabilities might have led people to expect has been a series of years not suitable for full breeding.

This has been more important than myxomatosis and "1080". This was one of the thoughts taken away by those who attended the rabbit control symposium held in Perth recently.

Antibiotic Residues In Milk : The Farmer's Responsibility, N Ingleton

Journal of the Department of Agriculture, Western Australia, Series 4

THE LEVEL of antibiotic residues in commercial milk supplies has been steadily increasing over the past few years.

These residues find their way into the bulk milk as a result of milk from cows under antibiotic treatment for mastitis or other infections being included in the bulk milk for sale.

Microorganisms And Soil Structure, T. M. Mccalla, F. A. Haskins

Department of Agronomy and Horticulture: Faculty Publications

SUMMARY

Good stable soil structure is valuable for promoting the growth of plants and micro-organisms by permitting enhanced aeration and water penetration and by decreasing erosion under some conditions.

Micro-organisms influence water percolation through the soil. They may plug up soil pores with byproducts of growth and reduce water percolation. On the other hand, if a soil containing a large amount of microbial products is stirred and allowed to dry, then the percolation may be high.

Micro-organisms are involved in stabilizing soil structure by their products of decomposition and their cellular binding material, such as mycelia. Microorganisms differ greatly in …

Revised And Annotated Catalogue Of The Grasses Of Arkansas, Dwight M. Moore

Journal of the Arkansas Academy of Science

No abstract provided.

Toxic Annuals In Horticulture, Robert Dunlop Royce

Journal of the Department of Agriculture, Western Australia, Series 4

THE number of poisonous shrubs and trees that are grown in gardens is very great, and several of these species have been discussed in detail.

It is probable that few people realise just how many of the commonest garden plants are in some way or under some circumstances, likely to contain a toxic principle.

Furthermore, this is not confined to the longer lived plants, but it applies equally to the annual plants, both summer growing and winter growing.

Stocking Rate And Pasture Management, B F. Carlin

Journal of the Department of Agriculture, Western Australia, Series 4

FARMERS west of the Great Southern Railway, raising sheep and beef cattle, frequently associate soil deficiencies with difficulties in holding sub. clover in their pastures.

Field observations and some trials in those districts indicate that in many paddocks the problem arises through undergrazing rather than a deficiency in the soil.

Pensternon In Your Garden, Glenn Viehmeyer

Department of Agronomy and Horticulture: Faculty Publications

A new race of hardy perennials is beginning to appear in American gardens. These are the penstemons, a genus of plants closely related to the familiar snapdragon, which may become important ornamentals as they become better known to gardeners. The purpose of this bulletin is to show the possibility of the genus as an ornamental and to suggest species and species hybrids of possible value to Great Plains gardeners; to provide information about propagation and culture; and to encourage gardeners to engage in penstemon breeding as an avocation.

Evolutionary Relationships Among The North American Mallards, Paul A. Johnsgard

Papers in Ornithology

A comparative morphological, behavioral, and electrophoretic study was undertaken on six populations of North American mallards that are currently considered by the A.O.U. Check-list to comprise four species and two additional subspecies. These include Anas p. platyrhynchos, A. d. diaxi, A. d. novimexicana, A. f. fulvigula, A. f. maculosa, and A. rubripes. These forms are essentially allopatric in their breeding distributions, with the major exception of A. p. platyrhynchos and A. rubripes, which overlap throughout a several-hundred-mile zone in east-central United States.

Geographic ranges and population sizes are estimated, and evidence is presented to indicate that the …

Notes On The Collared Pika, Ochotona Collaris (Nelson), In Alaska, Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Maps showing the geographic range of the collared pika, Ochotona collaris (Nelson), have been published recently by Hall (1951) and by Hall and Kelson (1959). According to these, this mammal occurs in the mountains between the Tanana and Yukon Rivers, and in the Alaska Range as far west as Mt. McKinley. A specimen from the summit of the Chugach Mountains (Baker, 1951) was not included on the aforementioned maps. Osgood (1904) referred to two specimens collected by C. L. McKay in the Chogmit Mountains, east of Lake Clark at the base of the Alaska Peninsula, and also mentioned a sight …

Studies On Controlling Oyster Drills In Tomales Bay, Clarence Irwin Haydock

University of the Pacific Theses and Dissertations

The primary purpose of this study was to evaluate the feasibility of controlling oyster drills in Tomales Bay, particularly Urosalpinx cinerea and Ocenebra Japonica (astropods, Muricidae), with chemicals which have been succesfully tested on a number of oyster pests, Including urosalpinx, in Long Island Sound (Loosanoff , 1956- 1961). The problem was polo to provide information. en the present status of drills alle is the bay, a basic preliminary in evaluating others of pest control.

A Physiological Comparison Of Isopods In The Transition From A Marine To A Terrestrial Habitat : With Notes On Their Morphology And Behavior, Gary John Brusca

University of the Pacific Theses and Dissertations

This study is of five species of isopods common to the Dillon Beach area, each of which represents a different level in the transition toward land life. Cirolana harfordi was used as a completely marine form. Idothea (Pentidotea) wosnesenskii represents a step toward land life as it inhabits an area uncovered by most low tides. Ligia occidentalis is found in the splash zone, receiving spray from the action of the surf. This illustrates another, higher, level in the transition. Alloniscus perconvexus was the fourth species studied. It is commonly found burrowed in the sand in the area of the berm, …

The Biology Of Karyolysus Dilloni N. Sp. From Rana Aurora Draytoni, Wayne Aldo Sorsoli

University of the Pacific Theses and Dissertations

While investigating various Amphibia of Central California for blood inhabiting parasites, the writer found a parasite in the blood of the Rod-legged Frog (Rana aurora draytoni) which exhibited the characteristics of Karyolysus, yet was different from any described; this same parasite had been previously observed by Dr. D. L. Lerhmann, Associate Professor of Zoology, University of the Pacific. In order to increase the knowledge of this form, further investigations were undertaken.

The first step was to determine the life cycle in the vertebrate host and, if possible, to find the invertebrate host and to elaborate the developmental stages in the …

The Taxonomy Of A Pentastomid Parasite From An Indian Calotes Versicolor, Shirangam Kuppuswami Krishnaswami

University of the Pacific Theses and Dissertations

The Class Pentastomida is ranked under the Phylum Arthropoda by most authors, but its position is questionable in view of its unusual body structure, and probably the group should be regarded as occupying an isolated place among the invertebrates. The members of the Class Pentastomida are endoparasitic in the respiratory passages and lungs of vertebrates. They are veriform with flattened cylindrical annulated body; they are unique in that the body is non-segmented, but the muscles are metamerically arranged and the integument is chitinous with numerous glands. These data alone would justify the argument that they should be assigned an isolated …

Trematodes Recovered From Passerine Birds Collected In Chickasaw County, Iowa, (With Notes On Other Avian Helminths), Charles J. Ellis

Dissertations and Theses @ UNI

The present study is a survey of the trematodes found in passerine birds collected in the Goodale Conservation Area of Chickasaw County, Iowa, from October 1959 through August 1960. Non-trematodic infections are reported also.

The Biochemical And Structural Organization Of Mitochondria: The Ninth Edsel B. Ford Lecture, Albert L. Lehninger

Henry Ford Hospital Medical Journal

No abstract provided.

Abstracts Of Recent Publications Of The Professional Staff Of The Henry Ford Hospital And The Edsel B. Ford Institute For Medical Research

Henry Ford Hospital Medical Journal

No abstract provided.

Factors Of The Microclimate Affecting The Activity Of Fox Squirrels In Southwestern Michigan, Frederick K. Courville

Masters Theses

The fox squirrel, Sciurus niger rufiventer, is an important small game animal throughout much of the Midwest. Within the last thirty years several scientific investigations have been focused on this animal, the result being that its life history and ecology are fairly well known.

Concerning the range of the fox squirrel, D. L. Allen (1943:33) states that, in Michigan, the range began to increase with the advent of the pioneers. Baumgartner (1940) and J. M. Allen (1952) noted similar occurrences in their respective states, Ohio and Indiana. In Kansas, the fox squirrel, aided by agricultural land-use, has spread westward throughout …

Letter From Lawrence W. Quate To Dr. Jane C. Dirks-Edmunds, Lawrence W. Quate

Jane Claire Dirks-Edmunds Documents

This letter from Dr. Lawrence W. Quate is one of many such letters received by Dr. Jane Claire Dirks-Edmunds. Dirks-Edmunds consulted a number of experts to help identify the specimens she collected while conducting fieldwork. Quate was an expert on midges, also known as psychodids. Many of the colleagues with whom Dirks-Edmunds corresponded resided far afield from her research site on Saddleback Mountain in Oregon.

Dirks-Edmunds, a 1937 graduate of Linfield College, graduated from the University of Illinois in 1941; she returned to teach in the Biology department at Linfield from 1941-1974.

Louisiana Agriculture Magazine, Fall 1960, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.

The Effects Of Hypothermia On Maze Retention In Citellus Spilosoma And Mesocricetus Auratus, John T. Walsh, O.P

Biology ETDs

No abstract provided.

Mycorrhizae Of Ponderosa Pine In Nebraska Grassland Soils, R. W. Goss

Nebraska Agricultural Experiment Station: Historical Research Bulletins

While the genus Pinus has been the subject of extensive mycorrhizal studies there are only a few scattered references to western yellow pine, P. ponderosa, and no detailed descriptive literature on the mycorrhizae of this species. P. ponderosa is indigenous to Nebraska and the one species most extensively grown in local nurseries for windbreaks and farm plantings. Similarly, there is little information on mycorrhizae in the Great Plains between the forested regions of the Mississippi River states and the Rocky Mountains. Because this predominantly grassland area is sparse in natural tree growth the individual tree as an ornamental or …

Some Fundamentals Of Gonadal Development And Function, Richmond W. Smith Jr., Raymond C. Mellinger

Henry Ford Hospital Medical Journal

No abstract provided.

Introduction Of New Staff Members

Henry Ford Hospital Medical Journal

No abstract provided.

Abstracts Of Recent Publications Of The Professional Staff Of The Henry Ford Hospital And Of The Edsel B. Ford Institute For Medical Research

Henry Ford Hospital Medical Journal

No abstract provided.