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Mortality Of White-Tailed Deer In Northeastern Minnesota, Michael E. Nelson, L. David Mech

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

Abstract: Two hundred nine white-tailed deer (Odocoileus virginianus) were radiotracked in the central Superior National Forest, Minnesota, from 1973 through winter 1983-84; 85 deaths were recorded. Annual survival was 0.31 for fawns (<1.0 years old), 0.80 for yearling (1.0-2.0 years old) females, 0.41 for yearling males, 0.79 for adult (≥2.0 years old) females, and 0.47 for adult males. Monthly survival rates were high from May through December (0.94-1.00), except for yearling (0.60) and adult (0.69) bucks during the November hunting season. Most mortality occurred from January through April when gray wolf (Canis lupus) predation was an important mortality source for all cohorts. Yearlings males were most vulnerable to hunting and adult males to wolf predation.

The Synthesis And Evaluation Of The Cardiovascular Activity Of Novel Imidazole Ring Systems, Joseph E. De Los Angeles

Chemistry & Biochemistry Theses & Dissertations

An investigation was undertaken to synthesize and evaluate the cardiovascular activity of two imidazole ring systems. Imidazoles with hypotensive activity would provide novel potential antihypertensive drugs. These novel structures may also find use as chemical probes in the study of the cardiovascular system and as prototypes for other potential cardiovascular agents.

The histamine derivative, 7,7-dipyridyl-4,5,6,7-tetrahydroimidazo-[4,5-c]pyridine (ligand l), was demonstrated to possess significant hypotensive activity in laboratory rats. A 15 mg/Kg dose of ligand 1 produces a statistically significant decrease in blood pressure when injected IP. This hypotensive effect is also associated with marked increase in heart rate. Although compound 1 …

Statolith Formation In Cnidaria: Effects Of Cadmium On Aurelia Statoliths, D. B. Spangenberg

Scanning Electron Microscopy

Statolith formation in Cnidaria was reviewed with an emphasis on Aurelia statoliths. The review provides information on the chemical composition, mechanisms of initiation of mineralization, and effects of environmental factors on Cnidarian statolith formation. Environmental factors discussed include modified sea water ingredients, X-irradiation, clinostat rotation, and petroleum oil ingredients. A detailed account of the effects of cadmium on mineralization and demineralization of Aurelia statoliths is given. Cadmium at dosages of 2 to 4 μM significantly reduces statolith numbers in developing ephyrae. At a dosage of 3 μM, cadmium accelerates statolith loss in unfed ephyrae studied at 4 and 8 days …

Scanning Electron Microscopy Of Thebesian Ostia (Microdissection By Ultrasonication: Enzymatic Digestion), F. A. Rosinia, F. N. Low

Scanning Electron Microscopy

Thebesian vasculature provides for communication between the coronary system and the chambers of the heart. Anatomic, embryologic, physiologic, and therapeutic investigations have involved this component of cardiac anatomy from the early 18th century to the present time. The scanning electron microscope (SEM) now affords an innovative approach to the study of the ostia of these veins as they open into the chambers of the heart. The surface of the intact endocardium is continuous, whether it is treated with boric acid or not, as long as it remains intact. Enzymatic microdissection of tissues with trypsin, hyaluronidase and pronase, followed by similar …

The Gill Arch Of The Striped Bass, Morone Saxatilis. Ii. Microvasculature Studied With Vascular Corrosion Casting And Scanning Electron Microscopy, Judy A. C. King, F. E. Hossler

Scanning Electron Microscopy

The gill vasculature of euryhaline striped bass, Morone saxatilis, was examined by scanning electron microscopy of corrosion casts prepared by injecting resin (either Mercox/Sevriton or L.R. White) into the ventral aorta. The vasculature of the striped bass gill appears to be similar to that of other euryhaline species. The striped bass gill has three major vascular systems: (1) a respiratory system, (2) an arterio-venous system, and (3) a nutritive system. In the respiratory system, blood from the afferent branchial artery flows to each filament via an afferent filamental artery, and from there to the highly vascularized respiratory lamellae. Lamellar …

The Effects Of Certain Oral Bacteria On The In Vitro Growth Of Bacteroides Gingivalis, Steven G. Morrow

Loma Linda University Electronic Theses, Dissertations & Projects

The effect of nine gram positive and grain negative cocci and bacilli, which are indigenous to the oral cavity, on the in vitro growth of Bacteroides gingivalis was examined in this study. A pure culture of B. gingivalis is was obtained from the American Type Culture Collection. The nine oral test organisms were Streptococcus mitis, Streptococcus mutans, Streptococcus faecalis, Staphylococcus epidermidis, Staphylococcus aureus, Corynebacteriurn hofmanii, Lactobacillus acidophilus, Branhamella catarrhalis, and Escherichia coli. The effect on the growth of B. gingivalis of the nine test organisms was evaluated on a solid medium by use of …

The Effect Of Dietary Fat Level On Tumor Development And Immunity In Balb/C Mice Fed Casein Of Wheat Gluten As Protein And Challenged With Herpes Type 2-Transformed Cells, Helen Drakou

Loma Linda University Electronic Theses, Dissertations & Projects

A high percentage of fat in the diet has been implicated through epidemiological studies in several human cancers. Studies in experimental animals have produced evidence that increasing the fat in the diet decreases the animal’s ability to restrict tumor development and growth. In previous work done in this laboratory with BALB/c mice injected with herpes simplex Type 2-transformed mouse cells (H238), the effects of a diet which greatly enhanced tumor growth was compared with one which restricted tumor growth. The latter, a low (5%) fat, low protein diet, in which the protein was casein, was also found to produce a …

Sprague-Dawley Rats Fed Milk Or Beef Protein : Differences In Response To 1,2-Dimethylhydrazine Carcinogenesis, Stanley W. L. Ng

Loma Linda University Electronic Theses, Dissertations & Projects

Colon cancer is responsible for a high percentage of cancer deaths in developing countries, and there is convincing epidemiological evidence that meat protein and fat in the diet increase the incidence of this form of cancer. An animal tumor model which has been used by many investigators interested in colon cancer is the 1,2-dimethylhydrazine (DMH)-rat or DMH-mouse tumor model. In previous work done in this laboratory the DMH-BALB/c mouse tumor model was used to compare the production of colon tumors in mice fed a diet using non-fat powdered milk as a source of protein with those in mice fed beef …

Relationship Between Dietary Intake And Reproductive Hormones In Premenopausal Vegetarian And Nonvegetarian Seventh-Day Adventist Women, Joan M. Spuehler

Loma Linda University Electronic Theses, Dissertations & Projects

There is evidence that specific nutrients may modify hormonal balance and contribute to breast cancer etiology. To investigate the relationship between dietary nutrients and plasma reproductive hormones and to determine hormone-nutrient interrelationships, we measured plasma estrogens, androgens. progesterone and prolactin levels in 10 premenopausal Seventh-day Adventist (SDA) vegetarian and 10 premenopausal SDA nonvegetarian women. Over three days in each of three consecutive months. diet records and fasting midluteal blood samples were collected. The nonvegetarians consumed significantly more protein, total and saturated fats, oleic and linoleic acids, and cholesterol than did the vegetarians. Hormonal status of the two groups did not …

Effects Of Corn Oil And Benzyl Acetate On Number And Size Of Azaserine-Induced Foci In The Pancreas Of Lew And F344 Rats, Daniel S. Longnecker, B D. Roebuck, Thomas J. Curphey, Evelyne Lhoste, Charles I. Coon, Denise Macmillan

Dartmouth Scholarship

The response of LEW and F344 strain rats to the pancreatic carcinogen azaserine was compared using the size and number of azaserine-induced acidophilic acinar cell foci and nodules as parameters in a 4-month experiment. A second experiment compared the effect of corn oil intake by gavage and dietary routes on the growth of azaserine-induced pancreatic lesions in LEW rats. A third experiment tested the activity of benzyl acetate in regard to its ability to induce acinar cell foci or to promote the growth of such foci in azaserine-treated rats. The results showed that equivalent doses of azaserine induce two to …

Genes, Manganese, And Zinc In Formation Of Otoconia: Labeling, Recovery, And Maternal Effects, L. C. Erway, N. A. Purichia, E. R. Netzler, M. A. D'Amore, D. Esses, M. Levine

Scanning Electron Microscopy

Published studies indicate that genes and dietary manganese deficiency cause vestibular defects and ataxic behaviors. Manganese deficiency during development causes otoconial defects in mice, rats, guinea pigs, and chicks. Mutant genes cause otoconial defects in mice, mink, and poultry. Manganese supplementation prevents the otoconial defects in some mutant mice and mink. Manganese is essential, before crystallization of the otoconia, for synthesis of mucopolysaccharides and otoconial matrix. Such defects can be induced, after otoconia are crystallized during fetal development, by dietary zinc deficiency and sulfonamide treatment (inhibits carbonic anhydrase, a zinc-requiring enzyme). Manganese and/or zinc supplementation ameliorates otoconial defects in pallid …

Regulation Of Hematopoiesis In Long Term Marrow Cultures: Role Of Humoral Factors In The Proliferation And Differentiation Of Stem Cells And Committed Progenitors, Christine Elins Eastment

Scanning Electron Microscopy

Established systems of long-term bone marrow culture (LTBMC) have contributed to our understanding of the interrelationships between the adherent stromal cells and the stem cells, committed progenitors and mature terminally differentiated cells. While cell-mediated or short range stromal interactions appear to be a major source of homeostatic control between the stromal microenvironment and the stem cells, positive and negative humoral influences or long-range mechanisms also regulate stem cell proliferation and differentiation. Adherent stromal conditioned medium generates factors which can trigger CFU-s into DNA synthesis within 18 hours or inhibit incorporation of tritiated thymidine into rapidly proliferating CFU-s. Other adherent stromal …

A Review Of Deep Tillage Research In Western Australia, M W. Perry

Division of Plant Research : Technical Report Series

A history of deep tillage in Western Australia, R.J. Jarvis. Biology of root growth in cereals, M.W. Perry. Physics of soil compaction and root grow thin compacted media, A.P. Hamblin. Effects of deep tillage on root growth and wateruse of wheat and lupins, D. Tennant. Nutrition or water - why the response to ripping, W.J. Bowden. Crop response to deep tillage, R.J. Jarvis. Response of crops and pastures to deep tillage, C. Henderson. Soil compaction, deep tillage and root disease, J. Wilson. Deep tillage in farming systems: timing of deep tillage and interactions with rotation and conventional tillage practice, J. …

The Effects Of Nitrogen And Phosphorus Fertilizer On A Young Loblolly Pine Plantation On Lignite Mine Spoil In East Texas, Martin Andrew Shupe

Electronic Theses and Dissertations

Five levels of nitrogen fertilizer combined with three levels of phosphorus fertilizer were tested in a two year-old loblolly pine plantation on a lignite mine spoil in East Texas. Growth parameters, foliar and spoil nitrogen and phosphorus concentrations were measured after two growing seasons. Nitrogen increased diameter growth during the first year, and foliar nitrogen increased with increasing fertilizer rates for both years. Phosphorus increased height during the first year and over both years combined and also increased diameter during the second year and over both years combined. Foliar phosphorus was increased by nitrogen in the first year. Spoil phosphorus …

The Three-Dimensional Microstructure Of The Liver A Review By Scanning Electron Microscopy, G. Macchiarelli, P. M. Motta

Scanning Electron Microscopy

The improvement in scanning electron microscopy (SEM) techniques has permitted us to describe the microstructure of the liver. By SEM, the liver peritoneal surface is composed of flat mesothelial cells possessing microvilli and cilia. Hepatic sinusoids connect the portal vessels with the terminal branches of the hepatic vein (central veins). Endothelial cells of the portal space arteries are elongated and arranged longitudinally, while those of the central and portal veins are polygonal and flattened, possessing microvilli. The sinusoidal endothelial cells show both small fenestrations (sieve plates), up to 200 nm in diameter, and large ones, up to 1 𝝁m. Within …

South Dakota Farm And Home Research, South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

Director’s Comment: A south Dakota wheat line may be answer to Hessian fly in Morocco [p] 2
Woodies go ‘beep’: Wood ducks that talk to us have a clear message: oxbows are best nurseries around [p] 3
Lifestyle: clue to obesity?: Over half in survey said they were overweight; we cooperate in two-state search for causes [p] 6
Wheat: the checkoff: It’s an R7D’ program, an investment in our future, that’s been shown to pay off [p] 11
Wheat: the package: A new wheat means ‘maybe a profit,’ unproven until grower adds ‘other 50%’ of the package [p] 13
Alternative …

The Edible Oil Scene Problem And Opportunity, Shymal Roy

IIMB Management Review

No abstract provided.

Louisiana Agriculture Magazine, Summer 1986, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.

The Effect Of Salt Concentration On Auxin Stability In Culture Media, James R. Dunlap, Stephen Kresovich, Robert E. Mcgee

Faculty Publications

The concentrations of indole-3-acetic acid (IAA), naphthaleneacetic acid (NAA) and 2,4-dichlorophenoxyacetic acid (2,4-D) were followed for 35 days in cell-free liquid medium containing 100, 50, or 0% Murashige-Skoog (MS) salt base. Although the concentrations of NAA or 2,4-D remained constant the level of IAA decreased to only 11% of the original concentration after 35 days in the presence of 100% MS salt base. The observed rate of IAA degradation was accelerated by the presence of MS salts.

Relationship Between Snow Depth And Gray Wolf Predation On White-Tailed Deer, Michael E. Nelson, L. David Mech

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

Abstract: Survival of 203 yearling and adult white-tailed deer (Odocoileus virginianus) was monitored for 23,441 deer days from January through April 1975-85 in northeastern Minnesota. Gray wolf (Canis lupus)predation was the primary mortality cause, and from year to year during this period, the mean predation rate ranged from 0.00 to 0.29. The sum of weekly snow depths/month explained 51% of the variation in annual wolf predation rate, with the highest predation during the deepest snow.

Agricultural Research Division 100th Annual Report, July 1, 1985, To June 30, 1986

Agricultural Research Division: News and Annual Reports

This 100th Annual Report contains lists of current faculty, active projects, refereed journal publications, brief descriptions of research in selected areas, and the financial report for the period July 1, 1985, through June 30, 1986. Research programs in agriculture, home economics, and natural resources at the University of Nebraska have changed greatly since the U.S. Congress approved the establishment of an Agricultural Experiment Station in each state with the passage of the Hatch Act on March 2, 1887. Although Hatch funds account for a smaller proportion of the total research expenditures in the program today, this legislation continues to be …

Blarina Brevicauda, Sarah B. George, Jerry R. Choate, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Blarina Gray, 1838
Blarina Gray, 1838: 124. Type species Corsira (Blarina) talpoides Gray (=Sorex talpoides Gapper = Sorex brevicaudus Say), by original designation. Elevated to generic rank by Lesson, 1842:89.
Brachysorex Duvernoy, 1842:37-41. Type species Brachysorex brevicaudus Duvernoy (=Sorex brevicaudus Say), by original designation.
Talposorex Pomel, 1848:248. Type species Talposorex platyurus Pomel (=Sorex brevicaudus Say), by original designation. Anotus Wagner, 1855:550-55 1. Type species Sorex carolinensis Bachman, by original designation.

Critical Surgical Services And The Fragmented Patient, Brack A. Bivins

Henry Ford Hospital Medical Journal

No abstract provided.

Front Matter

Henry Ford Hospital Medical Journal

No abstract provided.

The Safety And Efficacy Of A New Patient-Controlled Analgesia Device In Hospitalized Trauma And Surgery Patients, Terry J. Baumann, Luz Maria Gutschi, Brack A. Bivins

Henry Ford Hospital Medical Journal

The objective of this investigation was to evaluate a new patient-controlled analgesia (PCA) device. Eighteen trauma and surgical patients were allowed to use a self-activated, intravenous infusion device for two to seven days for postoperative pain relief. Initial PCA dosage/interval settings were adjusted to provide a 0.5 to 1 mg dosage of morphine per injection with a six-minute lockout interval. Adjustments were made to these initial settings based on the individual patient's response. Pain and sedation scores and respiratory rates were recorded. Subjective evaluations of PCA indicated that 17 of the 18 patients (94.4%) participating in the study "preferred this …

The Failure Of Anthropometry As A Nutritional Assessment Tool, Judith J. Bencich, Diana L. Twyman, Ann Fierke

Henry Ford Hospital Medical Journal

Anthropometric measurements are commonly used to assess body composition changes and adequacy of nutritional support in the hospitalized patient. To test their utility as nutritional assessment tools in the intensive care unit (ICU) patient, body weight, triceps skinfold (TSF), mid-arm muscle circumference (MAMC). and fluid balance and intake were collected on 21 critically ill patients during their ICU stay. Correlations were sought between adequacy of nutritional support and changes over time in weight. MAMC, fluid balance, and TSF. A significant change over time in mean body weight (p < 0.0001) was seen, reflecting a mean weight loss despite a positive cumulative fluid balance of almost 20 L by day 14 for all patients (p < 0.0001). There was a significant change over time in the mean fractional intake of required calories ranging from 41.7% on observation day 1 to a peak of 84.0% on day 22 (p < 0.001). TSF and MAMC could not be obtained on a large percentage of ICU patients due to severe edema including the mid-upper arm. Obtained measurements showed no change over the study period in TSF (p = 0.24) and MAMC (p = 0.71) despite significant changes in weight (p < 0.0001). caloric intake (p = 0.0001). and cumulative fluid balance (p = 0.0001). From these data it appears that anthropometric indices of TSF and MAMC are unrelated to nutritional intake and weight in ICU patients and are therefore not of use in the nutritional assessment of this population.

Evaluation Of The Economic Impact Of Pharmacist Involvement In Hyperalimentation Therapy, Larry Crots, Larry Shoup

Henry Ford Hospital Medical Journal

A prospective parallel study of patients receiving total parenteral nutrition (TPN) was undertaken to identify characteristics of TPN solution use and waste. Thirty consecutive patients receiving TPN by order of the primary clinical service (control group) were compared with 25 consecutive patients receiving TPN under the supervision and monitoring of the Nutritional Support Service (study group). The patients were evenly divided between medical and surgical problems, with 53% of the control group being surgical patients compared to 56% of the study group. There were 136 L of TPN or 4.5 L/patient discarded in the control group compared to 65 L …

Joseph A. Johnston, Md: An Appreciation, Gordon Manson

Henry Ford Hospital Medical Journal

EDITOR'S NOTE: Over the years many fine and distinguished physicians have helped make Henry Ford Hospital one of the leading medical institutions in Michigan and throughout the United States. With this issue we begin our tribute to those "pioneers" who have played an integral part in the history of Henry Ford Hospital. At the first meeting of the Henry Ford Hospital Joseph A. Johnston Pediatric Society, October 11. 1985. Dr Gordon Manson honored the late Dr Johnston. The following is Dr Manson's personal presentation and tribute to his long-time friend and colleague, Johnny Johnston.

Dietary Cholesterol, Tissue Phospholipids And Prostacylin Production Of Rat Aorta, Mieko Hoshino Andress

Loma Linda University Electronic Theses, Dissertations & Projects

Male Sprague-Dawley weanling rats were divided into three groups, a control (rat-chow and 5% corn oil), the control diet plus cholesterol, and the control diet plus both cholesterol and cholic acid. After four months the animals were sacrificed and blood samples, along with abdominal and thoracic aorta cross-sectional ring segments. were collected. The serum cholesterol levels, fatty acid compositions in the phospholipids (PL) of the aortic tissues (thoracic and abdominal aorta tissues combined), and the endogenous 6-keto-PGFla (stable metabolite of PGI2) production in thoracic and abdominal aortic tissues were While serum cholesterol levels were highest in the rats fed a …

Resistance Of Wild Rices, Oryza Spp., To The Brown Planthopper, Nilaparvata Lugensi (Homoptera: Delphacidae), Wu Jung-Tsung, E. A. Heinrichs, F. G. Medrano

Department of Entomology: Faculty Publications

Of 36 wild rices screened, 19 accessions were resistant or moderately resistant to three biotypes of the brown planthopper, Nilaparvata lugens (Stål), and 9 were resistant or moderately resistant to at least one biotype. Resistant accessions were nonpreferred and N. lugens caged on resistant accessions had low food ingestion rates, slow nymphal development, reduced longevity, low fecundity, and consequently low populations. Two wild rice species decreased the percent hatchability of N. lugens eggs. Some moderately resistant accessions have tolerance to N. lugens, as indicated by low plant damage ratings and plant loss and high percentage N. lugens survival and …