UScholar Works
 
Filters: Collection: "ir_uspace"
1 - 25 of 23
Number of results to display per page
CreatorTitleDescriptionSubjectDate
1 Creel, Donnell J.; Leventhal, Audie G.Retinal projections in tyrosinase-negative albino catsRetinal projections were examined in two tyrosinase-negative albino cats using autoradiographic techniques. Cats from this colony have pink eyes; their retinal pigment epithelium, ciliary body, and iris epithelium are completely devoid of melanin pigment. Test breeding for five generations indicates...Cats; Albinism; Vision; Autoradiography; Retina1982-07
2 Angelucci, AlessandraExperimentally induced retinal projections to the ferret auditory thalamus: development of clustered eye-specific patterns in a novel targetWe have examined the relative role of afferents and targets in pattern formation using a novel preparation, in which retinal projections in ferrets are induced to innervate the medial geniculate nucleus (MGN). We find that retinal projections to the MGN are arranged in scattered clusters. Clusters a...Retina; Ferrets1997
3 Chamberlin, Ralph V.North American spiders of the genera cybaeus and cybaeinaThe frequency with which members of the Agelenid genus Cybaeus appeared in collections made by the authors in the mountainous and timbered sections of the Pacific coast region and the representations therein of various apparently undescribed species led to the preparation of this review of the known...1932-12
4 Chamberlin, Ralph V.On a diplopod collection from Barro Colorado Island, PanamaThe present paper presents the results of a taxonomic study of an important collection o f millipeds made bv Mr. Eliot C. Williams, Jr., of Northwestern University on Barro Colorado Island during July and August of 1938. Twenty-three species were secured, these representing •i very interesting and...1940-01-18
5 Chamberlin, Ralph V.New Southern MillipedsThe twenty-six new species of diplopods heroin named and diagnosed were found chiefly in material from Missouri, Arkansas, Louisiana and neighboring states collected in 1935 and 1936 by Mr. Leslie Hubricht of the Missouri Botanical Gardens and now through his courtesy included in the author's collec...1942-03-23
6 Chamberlin, Ralph V.New American MillipedsHaving the proportions and general structure of Ischnocybc. It differs from this genus in having the first tergite strongly keeled and hiberculate. Other tergites with sharply elevated tubercles in two transverse series, some tubercles present 011 basal part of keels. Pores not stipitate, opening on...1941-04-23
7 Chamberlin, Ralph VaryOn centipeds and millipeds from Mexican CavesThis paper is a report on centipeds and millipeds taken in the caves in the states of Vera Cruz, San Luis Potosi, Nuevo Leon and Guerrero by Drs. F. lionet and C. Bolivar and associates of the Escuela Xacional de Ciencias Naturales of Mexico. The material from these caves forms part of an extensive ...1942-11-20
8 Chamberlin, Ralph V.Spiders of the Raft River Mountains of UtahAn expedition to the Raft River Mountains, located in northwestern Utah near the Idaho and Nevada borders, was sponsored by the departments of Zoology and Botany of the University in September, 1932. The authors of this paper devoted themselves primarily to the collecting of spiders of which a total...1933-04
9 Capecchi, Mario R.Hoxa1 lineage-tracing indicates a direct role for Hoxa1 in development of the inner ear, the heart and the third rhombomereLoss of Hoxa1 function results in severe defects of the brainstem, inner ear and cranial ganglia in humans and mice as well as cardiovascular abnormalities in humans. Since Hoxa1 is expressed very transiently during an early embryonic stage, it has been difficult to determine whether Hoxa1 plays a d...Hoxa1; Inner ear; Third rhombomere; Hindbrain; Hoxa1-IRES-Cre mouse; Embryonic development; Lineage-tracing2010
10 Chamberlin, Ralph V.On some genera and species of American MillipedsThe notes and diagnoses in this paper are based primarily upon a small but interesting collection of millipeds recently made in Georgia by Wilton Ivie, and upon specimens in the Field Museum collection chiefly from neighboring sections of the southern states.1943-10-15
11 Chamberlin, Ralph V.New Western MillipedsDiffering from Xannolcnc, which it much resembles in general appearance and structure, in having the gonopods of the male fully exposed, in having the coxal processes of the anterior pair contiguous at the middle line and decidedly surpassing the tclopodite, and in having the anterior sternite short...1941-06-16
12 Couldwell, William T.; Osborne, Anne G.Hypertrophic olivary degeneration after surgical removal of cavernous malformations of the brain stem: report of four cases and review of the literatureBackground: Hypertrophic olivary degeneration (HOD) is a pathological phenomenon that occurs after injury to the dentato-olivary pathway. Its hallmarks include hypertrophy of the olive with increased T2 signal intensity on magnetic resonance imaging, and often manifests with palatal tremor and osci...Hypertrophic olivary degeneration; Surgery; Cavernous malformation; Brainstem2008
13 Angelucci, Alessandra; Lund, Jennifer S.Circuits for local and global signal integration in primary visual cortexContrast-dependent changes in spatial summation and contextual modulation of primary visual cortex (V1) neuron responses to stimulation of their receptive field reveal long-distance integration of visual signals within V1, well beyond the classical receptive field (cRF) of single neurons. To identif...Primary Visual Cortex; Extrastriate Cortex; Feed-back Connections; Lateral Connections; SUrround Modulation; Macaque2002-10-01
14 Chamberlin, Ralph VaryAgelenid spiders of the Genus CicurinaThe genus Cicurina was erected by Menge in 18(59 for the species jlranea cicurea Fabricius (1793). Since then, various species from North America have been added to this genus. Petrunkevitch, in his catalog of 1911, listed 11 species from this continent. Exline, in a review of the Cicurinas in 1936,...1940-06-29
15 Couldwell, William T.Photophobia in a blind patient: an alternate visual pathwayPhotophobia is a common neurological and ophthalmological symptom that has been associated with a growing number of neurosurgical conditions, especially compressive lesions. The exact signaling pathways and neurophysiological features of the disorder are not well understood; however, data from mult...2006-11
16 Digre, Kathleen B.; Couldwell, William T.; Amini, AminPhotophobia in a blind patient: An alternate visual pathway. Case report.Photophobia is a common neurological and ophthalmological symptom that has been associated with a growing number of neurosurgical conditions, especially compressive lesions. The exact signaling pathways and neurophysiological features of the disorder are not well understood; however, data from multi...Photophobia, Blindness, Signaling Pathway, Pretectal Nuclei, Trigeminal Pathway2006-12-14
17 Normann, Richard A.Oscillations in rod and horizontal cell membrane potential: evidence for feed-back to rods in the vertebrate retina1. Rods and horizontal cells were studied with intracellular recordings in the retina of the toad, Bufo marinus; 161 cells were from the eyecup preparation and thirty were from the isolated perfused retina. 2. Of these cells, 39% exhibited either transient or sustained oscillations of membrane poten...Retina; Photoreceptors; Toads; Adaptation, Ocular1976
18 Digre, Kathleen B.; Gouw, Launce G.; Harris, Catherine P.; Haines, John H.; Ptacek, L.J.Autosomal dominant cerebellar ataxia with retinal degeneration: clinical, neuropathologic, and genetic analysis of a large kindred.The autosomal dominant cerebellar ataxias (ADCA) comprise a heterogeneous group of neurologic disorders characterized by degeneration of the cerebellum, spinal cord, and brainstem. Genetic analysis has revealed two loci, SCA1 on chromosome 6p, and SCA2 on chromosome 12q, responsible for some ADCA. W...Retinal Degeneration; Cerebellar Ataxia; Genetic Analysis1994-08
19 Chamberlin, Ralph V.Spiders collected by L. W. Saylor and other, Mostly in CaliforniaIn the present paper are listed some 150 species of spiders composing a collection submitted to us bv Mr. L. W . Saylor, now of the United States Bureau of Biological Survey, who personally took most of the specimens. Of the species represented in the collection, 24 are new, and three of these are m...1941-02-13
20 Faugeras, Olivier DominiqueDigital color image processing and psychophysics within the framework of a human visual modelA three-dimensional homomorphic model of human color vision based on neurophysiological and psychophysical evidence is presented. This model permits the quantitative definition of perceptually important parameters such as brightness. saturation, huo and strength. By modelling neural interaction in t...Human visual model; Neurophysiological evidence; Psychophysical evidence1977
21 Chamberlin, Ralph VaryA hundred new species of American spidersIn this paper, we describe a hundred new species of American spiders, most of them from North America, with a few from South America. These are a part of the new species which have been accumulating in the collection of the University of Utah, as well as several from the collections of the Field Mus...1942-06-30
22 Couldwell, William T.Resident curriculum guidelines for neurosurgeryThis curriculum was created to detail the body of knowledge that should be attained by an individual completing residency training in neurological surgery. The specific structure of resident education in neurological surgery is defined by the American Board of Neurological Surgery, and each program...Residency training; Neurological surgery2000
23 Chamberlin, Ralph V.The spiders of AlaskaThis paper is the result p rimarily of a study of the h igh ly important arachnid collections made by Dr. Joseph C. Chamberlin in Alaska during the summer seasons of 1943, 1944 and 1945 d urin g which he was engaged for the U. S. Department of A g riculture in entomological investigation, ch iefly i...1947-01-25
1 - 25 of 23