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New Mexico Lobo, Volume 068, No 32, 11/9/1964, University Of New Mexico

1964

New Mexico Lobo, Volume 068, No 32, 11/9/1964

Crystal Field Splitting In Rare Earth Chelates, Walter George Perkins

Chemistry and Chemical Biology ETDs

Investigations of ligand field effects in the spectra of trisdibenzoyl­methide, trisbenzoylacetonate, and trisacetylacctonatc chelates of trivalent ytterbium and thulium are reported. Chelate absorption and luminescence spectra corresponding to intra-4f electronic transitions exhibit line split­tings similar in magnitude to the crystal field splitting observed in the spectra of inorganic complexes of the rare earth ions.

Absorption spectra of carbon tetrachloride solutions of all the che­lates studied were measured in the visible and near infrared regions. Each ytterbium chelate exhibits an absorption band at 9800A, consisting of three well-resolved peaks. Thulium intra-4f absorption bands appear at 4700A, 6800A, 8000A, 12000A, and 17000A. …

New Mexico Lobo, Volume 068, No 27, 10/30/1964, University Of New Mexico

1964

New Mexico Lobo, Volume 068, No 27, 10/30/1964

New Mexico Lobo, Volume 068, No 24, 10/26/1964, University Of New Mexico

1964

New Mexico Lobo, Volume 068, No 24, 10/26/1964

The Radiochemical Purification Of Europium And A Study Of The Nuclear Properties Of Eu157, Eu158 And Eu159, William Richard Daniels

Chemistry and Chemical Biology ETDs

Chemical procedures have been developed for the rapid preparation of radiochemically pure europium sources from rare earth mixtures and from fission products. Unpurified mixtures of the mono- and dirp(l,1,3,3- tetramethylbutyl)phenyl 1 esters of orthophosphoric acid are used to ex­tract rare ei1arths in the (III) oxidation state away from europium in the (II) oxidation state. Europium sources can be prepared in about 30 min-11tes.

A slow􀀼r chemical procedure for the preparation of europium sources which are both radiochemically pure and mass free has also been developed. Di(2-ethylhEtxyl) orthophosphoric acid is used to separate europium from yttrium, which has a high fission …

University Of New Mexico Board Of Regents Minutes For October 01, 1964, University Of New Mexico Board Of Regents

Board of Regents Meeting Minutes

Minutes from the 1964-10-01 Board of Regents Meeting

New Mexico Lobo, Volume 068, No 2, 9/14/1964, University Of New Mexico

1964

New Mexico Lobo, Volume 068, No 2, 9/14/1964

Sleep Movements In Oxalis, Charles A. Campman

Biology ETDs

This work was done to explore the causes of sleep movements in Oxalis. Several methods were employed to discover the answers to speific questions concerning Oxalis nyctinasty.

The question of the control of Oxalis leaf movement by a typical biological clock and problems of the parameters of photic control are answered with the help of light control chambers and time-lapse photography. An anatomical study of the pulvinus, or motile organ, is described. Physiological studies consisted of tests for the site of activity of light and color of light active, as well as comparisons of the action on pulvini of externally …

Annual Report Of The University, 1963-1964, University Of New Mexico

UNM Annual Reports

As president of the University, I hereby submit the report of the University of New Mexico for the 1963-64 academic year. As is traditional, the report will not be confined strictly to the 12-month period ended June 30, 1964, but will also be concerned with continuing developments of significance to the institution and the state. During the year, the University celebrated the Seventy-Fifth Anniversary of its founding by the Territorial Legislature. This year, marking a milestone in the history of the institution, was in itself a time for attaining old goals and for making new beginnings.

New Mexico Lobo, Volume 067, No 114, 6/26/1964, University Of New Mexico

1964

New Mexico Lobo, Volume 067, No 114, 6/26/1964

New Mexico Lobo, Volume 067, No 113, 6/19/1964, University Of New Mexico

1964

New Mexico Lobo, Volume 067, No 113, 6/19/1964

University Of New Mexico Board Of Regents Minutes For June 05, 1964, University Of New Mexico Board Of Regents

Board of Regents Meeting Minutes

Minutes from the 1964-06-05 Board of Regents Meeting

Potential Diuretic Agents:-The Synthesis Of 4, 7-Disubstituted Derivatives Of 2-Phenylimidazo [4, 5-D]Pyridazine, Miriam P. Malm

Chemistry and Chemical Biology ETDs

"The maintenance of the water balance of an organism is of prime importance for its physiologic well-being." (1) Water, which composes approximately two-thirds of the entire human body weight, is the fluid in which all vital chemical reactions occur. A loss of 25 percent of body water usually proves fatal. The inherent physical and chemical properties of water render it as the ideal fluid to meet the physiological demands of the organism.

Spectroscopic Studies Of Tris (2,2'-Bipyridine)- And Tris (I, 10-Phenanthroline) Iron (Ii), -Ruthenium (Ii), And -Osmium (Ii), Sonia Lee Sabath

Chemistry and Chemical Biology ETDs

The tris(2,2'-bipyridine)- and tris(l,10-phenanthroline) complexes of iron(II), ruthenium(II), and osmium(II) were synthesized, purified, and characterized by analyses. The solution absorption spectra of the compounds were measured both in the ultraviolet and visible regions. The observed ultraviolet absorption bands of the ruthenium and osmium complexes were assigned entirely to transitions, the prominent bands being assigned to ligand (perturbed) transitions by comparison with the published assignments of the corresponding bands in analogous iron complexes. The visible absorption spectra for iron(II) and ruthenium(II) complexes were attributed entirely to singlet-singlet charge transfer transitions. The strong visible absorption bands of osmium(II) complexes were also assigned …

The Synthesis And Evaluation Of Some 2-Arylindenes And 2-Aryl-3h-Benz[E]Indenes As Liquid Scintillation Solutes, James Leslie Schornick

Chemistry and Chemical Biology ETDs

A scintillator, in the chemical sense, is a system which can convert radioactive particle energy to visible and near ultraviolet photon energy. A phenomenon related to scintillation is fluorescence. The difference between scintillation and fluorescence is the source of excitation energy. In the case of scintillation, the exciting energy comes from radioactive particles, while in fluorescence, the exciting energy comes from ultraviolet light.

Studies Of Cs137 Metabolism In Several Mammals During Cold Exposure And Hibernation, Yu-Chong Lin

Biology ETDs

Experiments were conducted to define the extent to which lowered body temperature changes biological half-time and distribution of radiosotopes in tissues.

Metabolism of radioisotopes may be expected to be temperature dependent as the metabolism of many electrolytes has been demonstrated to involve temperature dependent mechanisms such as enzymatic transfer.

The effect of temperature on Cs 137 distribution in the mammalian hibernator, Citellus lateralis (Golden mantled ground squirrels) was studied. Experiments were conducted at the whole body and tissue levels. Radioactivity was measured with a small animal gamma scintillation detector. Whole body counts of animals given a single intraperitoneal injection of …

Phytosociological Study Of The Picuris Grant And Ethnobotanical Study Of The Picuris Indians., John C. Krenetsky

Biology ETDs

The objective of this study was to make a vegetative map and phytosociological study of the Picuris Grant, Taos County, New Mexico, and an ethnobotanical study of the Picuris Indians. The ethnobotanical study consists of a lid of commonly used plants and their uses.

The vegetation of the Grant is divided into five types: pinyon-juniper, ponderosa pine-pinyon-juniper, ponderosa pine, mixed conifer, and domestic. The first four types were subjected to intensive sampling using the line-strip method of Woodin and Lindsey modified to 400-foot elbs. Six elbs per slope exposure in each type were attempted.

Due to more favorable temperature and …

Geographic Variation Of The Pocket Gopher Thomomys Bottae In The Rio Grande Valley Of New Mexico, Thomas H. Follingstad

Biology ETDs

The geographic variation of the pocket gopher Thomomys bottae in the Rio Grande Valley of New Mexico and Conejos County, Colorado were studied. The pocket gophers were collected and prepared as standard museum skins and skulls. Various dimensions of the pocket gophers are measured, treated statistically, and plotted as Dice squares. Four groups of geographically related and like-sized animals were noted. These groups could be associated with four previously described subspecies of T. bottae. It was possible to observe a correlation between the mean size of each sample of gophers and the soil type in which they were found. The …

Some Aspects Of Kangaroo Rat Locomotion, Gerald G. Wheeler

Biology ETDs

Two species of kangaroo rats, Dipodomys merriami and D. ordi, were compared as to speed of locomotion in an experimental situation. They were timed as they moved through a hardware cloth tunnel with an electrified floor. Measurements of body parts especially those associated with a salutatory mode of locomotion were made, analyzed statistically, and their relation to the results discussed. The morphological data suggest that D. merriami can be expected to move more rapidly. Under laboratory conditions, however, D. ordi was faster (at the 95% confidence level). Possible reasons are discussed.

The Water-Bath As A Tool In Evaluating Responses Of Small Mammals To Thermal Stress, John T. Yelverton

Biology ETDs

The rate of heat loss from an animal to the environment is dependent upon multiple factors. External or environmental factors include the temperature gradient between the animal end the environment, humidity, and air velocity. With a water-bath technique these variables are eliminated by keeping the skin temperature of the animal nearly equal to that of the water.

In this study Citellus lateralis vas the only animal able to endure hypothermic conditions (25 C water) in either swimming or confined states by increasing metabolic rate. It is apparent that Mesocricetus auratus and Dipodomys ordi are more dependent upon passive temperature regulation …

The Effects Of Cobalt-60 On A Desert Root System, Mary G. Mayes

Biology ETDs

Tribulus terrestris L. (T. terrestris) is a late summer annual inhabiting relatively dry areas of southwestern United States. In the more northern latitudes of the Southwest, seeds do not germinate until about the middle of July when both day and night temperatures are high and the seasonal rains have started. The vinelike plant grows prostrate with a prominent deep penetrating taproot and even-numbered, pinnately compound leaves. The leaflets vary from three to seven pairs, are oblong, entire, folding together along the leaf axis at night or in windy or unusually cool weather. The flowers are usually lemon yellow, solitary, and …

Modern Pollen Rain And Fossil Profiles, Sandia Mountains, New Mexico, James Edward King

Biology ETDs

The modern pollen rain from each forest association on the east slope of the Sandia Mountains, new Mexico was sampled by the means of byrophytic pollsters. These modern pollen spectra were then compared to the diagrams of four fossil pollen profiles collected at 10,000, 8,000, 8,100, and 7,300 feet. It was found that the modern pollen rain of Picea and Abies is limited to the association in which these taxa are found and that down-slope, wind-borne drifting of Picea pollen is less than 400 feet. Since the only Picea found in the Sandia Mountains grow in the spruce-fir association, the …

University Of New Mexico Board Of Regents Minutes For May 19, 1964, University Of New Mexico Board Of Regents

Board of Regents Meeting Minutes

Minutes from the 1964-05-19 Board of Regents Meeting

Plant Distribution Of The Sandia Mountains Area, New Mexico, James N. Naylor

Biology ETDs

The Sandia Mountains are a block-fault range which attained the present height and topography during the Pleistocene epoch. The mountains are located just east of the Rio Grande in north-central New Mexico between 35° 05' N and 35° 18' N and between 106° 22' W and 106° 30' W. The general climate of the area is arid continental but there is much variation between the climate at the foot of the mountains and the climate at the crest ridge. There are four U. S. Weather Bureau weather stations within the area and a comparison is made among the weather records …

New Mexico Lobo, Volume 067, No 110, 5/14/1964, University Of New Mexico

1964

New Mexico Lobo, Volume 067, No 110, 5/14/1964

Distribution And Ecology Of The Bats Of The Mogollon Mountains Area, Clyde Jones

Biology ETDs

The purpose of this investigation is to record information concerning distribution, ecology, and natural history, and to determine, if possible, the factor or group of factors that may influence distribution and activity of bats in the Mogollon Mountains area of southwestern New Mexico and extreme northwestern Arizona. A total of 1595 specimens of bats were collected on 101 occasions from 44 localities within the study area. Most of the specimens assembled for study were collapsed by mist nets placed over water tanks, over ponds and streams, or over entrances to mines and caves. A few specimens were shot. For nearly …

New Mexico Lobo, Volume 067, No 99, 4/23/1964, University Of New Mexico

1964

New Mexico Lobo, Volume 067, No 99, 4/23/1964

Geographic Variation In New Mexican Horned Larks, David M. Niles

Biology ETDs

Horned Larks, Eremophila alpestris, were collected from eight stations in New Mexico in order to investigate geographic variation in size of certain skeletal elements and in back coloration of males. Size of many mensural characters appears to increase clinically to the north; but, the effects of latitude (presumably an example of Bergmann’s Role) are often modified by local ecological conditions, notably altitude. Those characters not demonstrating this are, in general, disassociated from the main metabolic mass of the birds. Females seem more affected by the above than males. Back coloration was found to vary in much the same manner as …

New Mexico Lobo, Volume 067, No 92, 4/10/1964, University Of New Mexico

1964

New Mexico Lobo, Volume 067, No 92, 4/10/1964

The Sheep Industry In Arizona, 1906, Frank D. Reeve

New Mexico Historical Review

No abstract provided.