Proceedings of the North Dakota Academy of Science articles from April 1 2000

Proceedings of the North Dakota Academy of Science archives from April 1 2000

Editor's notes.(Brief Article)(Editorial)
April 1, 2000... HISTORY The Proceedings of the North Dakota Academy of Science (NDAS) was first published in 1948, with Volume I reporting the business and scientific papers presented for the 40th annual meeting, May 2-3, 1947. Through Volume XXI, the...

Symposium agenda: Organismal Biology of the Northern Plains. (Sponsored Symposium).(Brief Article)
April 1, 2000... Location -- Memorial Union Friday 12:30-3:30 p.m. (Room 101) Organismal Biology of the Northern Plains A symposium focusing on the behavior, ecology, and evolution of animals on the Northern Plains. Moderator: Craig Stockwell,...

A. Rodger Denison competition--undergraduate division. (Collegiate Communications--Undergraduate).(Brief Article)
April 1, 2000... Judges -- Ron Jyring, Bismarck State University Anne Gerber, University of North Dakota 8:20 Welcome and Overview 8:30 "Glucose regulates pancreatic preprosomatostatin I expression." Gregory T. Melroe *, Melissa M. ...

Localization of somatostatin mRNAs in the brain and pancreas of rainbow trout (oncorhynchus mykiss) (1). (Collegiate Communications--Undergraduate).(Brief Article)
April 1, 2000... Somatostatins (SS) are a structurally diverse family of peptide hormones that coordinate the growth, development, and metabolism of animals. Recent work has revealed that the structural heterogeneity stems from the differential processing of a...

Proliferation of vascular endothelial cells and pericytes in ovine corpora lutea (CL) throughout the estrous cycle. (Collegiate Communications--Undergraduate).(Brief Article)
April 1, 2000... INTRODUCTION Luteal tissue undergoes rapid growth and vascularization throughout the early and mid stages of the estrous cycle. Cellular proliferation relies on the availability of nutrients to the tissues. The extensive vascular system of...

Inhibition of scleral gelatinase a activity by captopril. (Collegiate Communications--Undergraduate).(Brief Article)
April 1, 2000... PURPOSE Previous reports indicate that the development of myopia in a variety of animal models is accompanied by increased levels of gelatinase A (72 kD gelatinase, MMP-2) activity in the posterior sclera (1,2). In an effort to identify...

Glucose regulates pancreatic preprosomatostatin I expression (1). (Collegiate Communications--Undergraduate).(Brief Article)
April 1, 2000... The somatostatin (SS) family of peptide hormones has been shown to regulate various aspects of growth, development, and metabolism in vertebrates. Relatively little is known about the control of SS biosynthesis and secretion. Teleost fishes...

Low alpha lead and microtome sliced lead for assessment of alpha particle emissions for computer chip manufacturing. (Collegiate Communications--Undergraduate).(Brief Article)
April 1, 2000... Soft errors in computer memory chips arise when [sup.210]Pb, a radon daughter, generates [sup.210]Po which emits high energy alpha particles (5.3 MeV) in lead solder bumps. These emissions change the charge state of individual transistors....

Beta amyloid: the peptide that kills from both the outside and inside to produce Alzheimer's disease. (Collegiate Communications--Undergraduate).(Brief Article)
April 1, 2000... The 42 amino acid [beta]-amyloid peptide fragment (A[beta]42) is the killer of nerve cells in Alzheimer's disease (AD). We demonstrate here some of the mechanisms underlying A[beta] neurotoxicity based upon both light microscopic...

Expression of retinoic acid receptors by human sclera. (Collegiate Communications--Undergraduate).(Brief Article)
April 1, 2000... Much evidence exists for the presence of a vision-dependent mechanism which regulates the coordinated growth of the ocular tissues of the eye so as to minimize refractive errors. Previous results indicate that this mechanism controls the rate...

Auxin-induced cell wall loosening and the control of tobacco leaf cell expansion. (Collegiate Communications--Undergraduate).(Brief Article)
April 1, 2000... INTRODUCTION Previous work has established that excised tobacco leaf strips have a substantial growth response following auxin treatment (1). The growth is epinastic, unrelated to auxin-induced ethylene production, and strongly...

A. Rodger Denison competition--graduate division. (Collegiate Communications--Graduate).(Brief Article)
April 1, 2000... Judges: Kay Keehr, Grand Forks Human Nutrition Research Center Mark Wolverton, Minot State University 8:00 Welcome and Overview 8:10 "Immunolocalization of endothelial nitric oxide synthase (eNOS) in ovine corpora lutea...

Immunolocalization of endothelial nitric oxide synthase (eNOS) in ovine corpora lutea (CL) throughout the estrous cycle. (Collegiate Communications--Undergraduate).(Brief Article)
April 1, 2000... INTRODUCTION The corpus luteum is a transient endocrine gland which forms from the ovulated ovarian follicle and is critical for normal reproduction because it is the primary source of the progestational hormones such as progesterone....

Phosphorylation of the type I regulatory subunit of cAMP-dependent protein kinase in rat tissues. (Collegiate Communications--Undergraduate).(Brief Article)
April 1, 2000... INTRODUCTION cAMP-dependent protein kinase (PKA) is a multi functional enzyme regulating processes such as signaling, gene expression, anti cellular proliferation. A single phosphorylation site was identified in vivo at Ser-81 of the type...

Novel photoaffinity label indicates spatial relationships within the dopamine transporter. (Collegiate Communications--Undergraduate).(Brief Article)
April 1, 2000... INTRODUCTION The dopamine transporter (DAT) is a [Na.sup.+]/Cl dependent monoamine transporter found on the presynaptic neuron and is responsible for the uptake of the neurotransmitter, dopamine, after nerve cell stimulation. Psychostimulant...

Somatostatin modulates the growth of salmonid fish (1). (Collegiate Communications--Undergraduate).(Brief Article)
April 1, 2000... Somatostatins (SSs) are a family of peptide hormones that have been shown to inhibit pituitary growth hormone (GH) release. Extra-pituitary actions of SSs were suggested by previous studies that showed that growth retardation following...

An assessment of impact of the devils lake emergency outlet on the periphyton communities of the Sheyenne River. (Collegiate Communications--Undergraduate).(Brief Article)
April 1, 2000... The Sheyenne River is a medium-sized river which flows through central and eastern North Dakota. Devils Lake has been flooding for the past several years. The Army Corps of Engineers has proposed to divert water to the Sheyenne River through...

Molecular mapping of Fusarium head blight resistance in tetraploid wheat. (Collegiate Communications--Undergraduate).(Brief Article)
April 1, 2000... Fusarium head blight, more commonly known as scab, is a fungal disease of small-grain crops that causes yield loss and poor grain quality. The extensive damage caused by Fusarium head blight (FHB) has made it necessary to develop resistant...

Localizing site of protein kinase C stimulated phosphorylation on dopamine transporter. (Collegiate Communications--Undergraduate).(Brief Article)
April 1, 2000... INTRODUCTION The dopamine transporter (DAT) is predominantly found in striatum and is responsible for dopamine clearance in the synapse. The presence of multiple potential phosphorylation sites on DAT sequence suggests that its uptake...

Fine structure mapping of the species cytoplasmic specific gene. (Collegiate Communications--Undergraduate).(Brief Article)
April 1, 2000... Nuclear-cytoplasmic interactions play a key role in growth and fertility of new and novel wheat cultivars and commercial hybrids. Typically, cytoplasmic male sterility in hybrids has been corrected using Rf (restoration of fertility) genes. Not...

Localization of gap junctional protein connexin (Cx) 43 during maturation of the cumulus oocyte complex (COC) of ewes. (Collegiate Communications--Undergraduate).(Brief Article)
April 1, 2000... INTRODUCTION Gap junctions are specialized membrane channels that allow cell-to-cell communication between neighboring cells. Gap junctions are formed by one or more types of connexin proteins (2). Connexin proteins, including Cx43, are...

Leptin attenuates cardiac contraction in rat ventricular myocytes. (Collegiate Communications--Undergraduate).(Brief Article)
April 1, 2000... Obesity is associated with an increased incidence of cardiovascular diseases such as hypertension, stroke, and congestive heart failure (1). Although it appears that cardiac function may be normal or enhanced in the early stage of obesity (2),...

NDAS Senior Academy Program. (Professional Communications).(Brief Article)
April 1, 2000... Room 216 Moderator: Jon Jackson, University of North Dakota. 8:00 "The effect of caffeic acid on root cell membrane potentials in leafy spurge (Euphorbia esula L.)." Richard R. Barkosky *, Christopher P. Keller,...

The effect of caffeic acid on root cell membrane potentials in leafy spurge (Euphorbia esula L.). (Professional Communications).(Brief Article)
April 1, 2000... INTRODUCTION Allelopathy (allelon for `of each other' and pathos for `to suffer') is a term that describes the process by which certain compounds (allelochemicals) are released into the environment by one plant species to either positively...

Larval life history of the black-bellied salamander, Desmognathus quadramaculatus: effects of temperature and thyroid hormone on metamorphic timing. (Professional Communications).(Brief Article)
April 1, 2000... For amphibian species that have a larval stage, metamorphosis is a critical event that can affect the time and size of the animal at first reproduction, e.g., an animal that is large at metamorphosis can reach maturity faster and at a larger...

The role of apically produced auxin in leaf development in bean (Phaseolus vulgaris) plants. (Professional Communications).(Brief Article)
April 1, 2000... INTRODUCTION The presence of a growing shoot apex in many plants exerts an inhibitory control over the proximal lateral buds of the plant. Thus, removing the apex (i.e., "pinching" or decapitating) of a tomato plant stimulates lateral bud...

Effects of food and temperature on metamorphic timing of the black-bellied salamander, Desmognathus quadramaculatus (caudata, plethodontidae). (Professional Communications).(Brief Article)
April 1, 2000... INTRODUCTION Most species of amphibians have a life cycle that features metamorphosis, the morphological transition from the aquatic larval stage to a more terrestrial adult. Wilbur and Collins (1) proposed a model that predicts that growth...

Dietary boron and erythritol affect reproduction and fetal development in rats. (Professional Communications).(Brief Article)
April 1, 2000... Previous research indicates that physiologic amounts of dietary boron (B) affect reproductive function and embryonic development in frogs (1), fish (2), and mice (3). For example, frog and fish embryos, in the early stages of development,...

Characterization of photoaffinity labeled proteolytic fragments from cloned human dopamine transporter. (Professional Communications).(Brief Article)
April 1, 2000... INTRODUCTION The dopamine transporter is a transmembrane protein which removes dopamine from the synapse into the nerve cell after excitation. Inhibition of this transport is considered to be the major physiological action of cocaine. To...

Predicted circular dichroic spectra of cyclo(pro-gly)3 by the dipole interaction model using revised parameters. (Professional Communications).(Brief Article)
April 1, 2000... The synthetic peptide cyclo[(L-prolyl-glycyl).sub.3] (CPG3) is of interest because it is capable of binding and transporting cations across membranes (1-3). CPG3 has been shown by NMR (1) and by X-ray crystallography (2, 3) to adopt a variety...

Evaluation of regional bioelectrical impedance measurements to assess whole body composition. (Professional Communications).(Brief Article)
April 1, 2000... The use of the bioelectrical impedance (BI) method to assess human body composition has progressed from a research method to an at-home self-assessment tool. One commercially available device uses electrodes positioned only on the feet. This...

Low dietary zinc and copper negatively affect plasma and urine indicators of bone health. (Professional Communications).(Brief Article)
April 1, 2000... Although !ow dietary calcium receives the most recognition for increasing the risk of becoming osteoporotic, there are a number of other possible nutrients whose lack could increase the susceptibility to osteoporosis; these include zinc anti...

A probability problem in drug delivery. (Professional Communications).(Brief Article)
April 1, 2000... INTRODUCTION The problem that is being presented in this paper came from a pharmaceutical company. The company designed a skin patch, which will release a certain medicine progressively in increasing amounts of dosage. On the first day, it...

Adjustment to a peak physical work capacity treadmill test. (Professional Communications).(Brief Article)
April 1, 2000... In a nutrition research setting, the usually recognized function of an exercise stress test is two-fold: a) to determine volunteers' normal response to exercise and their fitness for prescribed exercise; and b) to quantify volunteers'...

Bison (Bison bison) habitat use and behavior during the breeding season in Theodore Roosevelt National Park in the North Dakota Badlands. (Professional Communications).(Brief Article)
April 1, 2000... INTRODUCTION Herd composition, calf production, habitat use, and reproductive behavior of bison (Bison bison) were studied in the South Unit of Theodore Roosevelt National Park (TRNP) in the Badlands of North Dakota during July and August...

Constitution of the North Dakota Academy of Science. (Constitution and By-Laws).
April 1, 2000... Founded 1908, Official State Academy 1958 ARTICLE I--Name and Purpose Section 1. This association shall be called the NORTH DAKOTA ACADEMY OF SCIENCE. Section 2. The purpose of this association shall be to promote and conduct...

Minutes.(Brief Article)
April 1, 2000... Minutes (unapproved) of the Annual NDAS Business Meeting--April 16, 1999 South Ballroom, Memorial Union, University of North Dakota Grand Forks, ND 12:40 pm 32 members in attendance The annual business meeting was called to order by...

Academy officers and committees. (Officers and Committees).(Brief Article)
April 1, 2000... Executive Committee Membership: Past-President President President-Elect Secretary-Treasurer Councilors (three-year terms) President Mark A. Sheridan Department of Zoology North Dakota State University Fargo, ND 58205...

Past presidents and locations of the annual meeting. (Past Presidents).(Brief Article)
April 1, 2000... PAST PRESIDENTS AND LOCATIONS OF THE ANNUAL MEETING NORTH DAKOTA ACADEMY of SCIENCE 1909 M A Brannon Grand Forks 1910 M A Brannon Fargo 1911 C B Waldron Grand Forks 1912 L B McMullen ...

Statement of financial status.(Brief Article)
April 1, 2000... Carol Belinskey (Minot) Virgil Carmichael (Bismarck) Gary K. Clambey (Fargo) Phyllis Johnson (Bethesda, MD) W. Thomas Johnson (Grand Forks) Jennifer Larson (Minor) James Lindley (Fargo) Russell J. Lorentz (Bismarck) Claude lt....

Directory of members.
April 1, 2000... A Harmon B. Abrahamson Department of Chemistry University of North Dakota Grand Forks, ND 58202 701-777-4427 harlan_abrahamson@ und.nodak.edu Joseph Alessi PO Box 50643 Idaho Falls, ID 83405 Bonnie J. Alexander...