A5040505123- Paleontology and Evolutionary Biology
- Evolution and Paleontology Studies
- Ichthyology and Marine Biology
- Hearing Loss and Rehabilitation
- Paleontology and Stratigraphy of Fossils
- Amphibian and Reptile Biology
- Noise Effects and Management
- Geology and Paleoclimatology Research
- Geological and Geochemical Analysis
- Speech and Audio Processing
- Geological formations and processes
- Geochemistry and Geologic Mapping
- Neuroscience and Music Perception
- Glaucoma and retinal disorders
- Carcinogens and Genotoxicity Assessment
- Traumatic Ocular and Foreign Body Injuries
- Structural Health Monitoring Techniques
- Geological Studies and Exploration
- Turtle Biology and Conservation
- Hearing, Cochlea, Tinnitus, Genetics
- Intraocular Surgery and Lenses
- Dam Engineering and Safety
- Plant Diversity and Evolution
- Geological and Geophysical Studies
- Neural dynamics and brain function
Natural History Museum of Utah
2018-2024
Caterpillar (United States)
2023
Mott MacDonald (United Kingdom)
2018-2020
Owl Biomedical (United States)
2017-2019
University of Alabama in Huntsville
2019
Museum of Science
2016-2018
Mott MacDonald (Czechia)
2018
Bentley (Germany)
2018
Museum of the Earth
2015-2017
East Cheshire NHS Trust
2015
Laser ablation ICP-MS imaging of gold and other trace elements in pyrite from four different sedimenthosted gold-arsenic deposits has revealed two distinct episodes enrichment each deposit: an early synsedimentary stage where invisible is concentrated arsenian diagenetic along with elements, particular, As, Ni, Pb, Zn, Ag, Mo, Te, V, Se; a later hydrothermal forms as either free grains cracks overgrowth metamorphic and/or or narrow goldarsenic rims on the outermost parts pyrite.Compared to...
The marriage between immunology and cytometry is one of the most stable productive in recent history science. A rapid search PubMed shows that, as July 2017, using "flow immunology" a term yields more than 68 000 articles, first which, interestingly, not about lymphocytes. It might be stated after short engagement, exchange wedding rings officially occurred when idea to link fluorochromes monoclonal antibodies came about. After this, recognizing different types cells became relatively easy...
Ethylene glycol monomethyl ether (EGME) and ethylene monoethyl (EGEE) were administered orally to young male rats at doses varying from 50 500 mg/kg/day 250 1000 for EGME EGEE, respectively, 11 days. At sequential times animals killed testicular histology examined. The initial major site of damage following treatment was restricted the primary spermatocytes undergoing postzygotene meiotic maturation division. EGEE produced an identical nature, but a larger dose required elicit equivalent...
Research Article| February 14, 2020 Redefining the Tonto Group of Grand Canyon and recalibrating Cambrian time scale K.E. Karlstrom; Karlstrom * 1Department Earth & Planetary Sciences, University New Mexico, Albuquerque, Mexico 87131, USA *E-mail: kek1@unm.edu Search for other works by this author on: GSW Google Scholar M.T. Mohr; Mohr 2Department Geosciences, Boise State University, Boise, Idaho 83706, M.D. Schmitz; Schmitz F.A. Sundberg; Sundberg 3Museum Northern Arizona, Flagstaff,...
This paper describes systematic methods for measuring and controlling sound levels within a magnetic resonance scanner. The are illustrated by application to the acoustic noise generated 3 T scanner during echoplanar imaging (EPI). Across five measurement sessions, pressure at center of head gradient coil ranged from 122 131 dB SPL [123 132 dB(A)]. For protection against damaging exposure, UK US industrial guidelines stipulate that maximum permitted daily dosage is equivalent 90 dB(A) 8...
It is a concern for auditory fMRI studies that acoustic noise generated by the scanner produces an response can confound stimulus-induced activation. To establish how to minimize this problem, present study mapped time-course of burst employing single-event method. Recorded bursts were interspersed with clustered-volume acquisitions at range stimulus-to-imaging delays map temporal resolution 1 sec. There strong responses (1.5% signal change) in primary and secondary cortex. In both cortical...
The linguistic properties of the FAAF test material are expounded in relation to its objectives. It is shown from reference data that there lexical effects inherent use real-word minimal pairs rather than nonsense syllables. These word-frequency upon phonemes initial position and imageability final position. However, those not large enough undermine as an acoustical phonetically structured reflecting analysis auditory information. Normative on a range signal-to-noise ratios presented. have...
Background: In microbial keratitis, infection of the cornea can threaten vision through permanent corneal scarring and even perforation resulting in loss eye. A literature review was conducted by Karsten, Watson Foster (2012) to determine spectrum keratitis. Since this publication, there have been over 2600 articles published investigating causative pathogens Objective: To current possible implicated keratitis relative 2012 study. Methods: An exhaustive all peer-reviewed reporting on...
Chronic exertional compartment syndrome (CECS) was first described in 1956,1 but little research has been performed since then to confirm the pathological physiology. An assumption is made that elevated subfascial or intramuscular pressure during exercise causes tissue hypoxia and subsequent ischaemic pain due decreased blood flow.2 To date, no conclusive evidence exists demonstrate cellular hypoxic damage capillary perfusion.3 Further supposition regarding muscle hypertrophy, reduced volume...
A new, largely complete eusauropod dinosaur with cranial and postcranial elements from two skeletons, Mierasaurus bobyoungi gen. nov., sp. nov. the lower Yellow Cat Member (Early Cretaceous) of Utah (USA), is first recognized member Turiasauria North America. Moreover, according to our phylogenetic results, Moabosaurus utahensis (USA) also a this clade. This group non-neosauropod eusauropods, which now includes five genera (Losillasaurus, Turiasaurus, Mierasaurus, Zby), was previously known...
Abstract Trilobites appeared and diversified rapidly in the Cambrian, but it is debated as to whether their radiations extinctions were globally synchronous or geographically restricted diachronous. The end of early Cambrian a classic example—it has traditionally been defined by extinction olenellid redlichiid trilobites appearance paradoxidid trilobites. Here we integrate global biostratigraphy these three trilobite groups with high-precision tuff tandem detrital zircon U-Pb age constraints...
A tetradactyl pes impression and tridactyl manus are described as the type specimen of Hatcherichnus sanjuanensis ichnogen. et ichnosp. nov., a probable large crocodilian ichnite from Salt Wash Member Upper Jurassic Morrison Formation in eastern Utah. similar track at Garden Park, Colorado, may also belong to this ichnogenus. The Utah consists plaster replicas natural casts left impression. Associated with were possible tail body drag impressions. tracks do not appear be part walking...
A sample of postaural hearing aid users was followed through adaptation to use an over 18-month period subsequent issue. Minor assistance and advice given but no intensive therapy or other instruction. miniature timing device installed in substituted for a few days provide check on self-reported extent use. On both objective self-report measures, aids receive substantially greater than the body-worn comparable previous investigations, about half being used 4 hours per day....
Functional magnetic resonance imaging (fMRI) is one of the principal neuroimaging techniques for studying human audition, but it generates an intense background sound which hinders listening performance and confounds measures auditory response. This paper reports perceptual effects active noise control (ANC) system that operates in electromagnetically hostile physically compact environment to provide significant reduction, without interfering with image quality. Cancellation was first...
A partial skeleton from the Little Snowy Mountains of central Montana is first referable specimen Morrison Formation macronarian sauropod Camarasaurus. This also represents northernmost occurrence a in Morrison. Histological study indicates that, although relatively small statured, it skeletally mature; this further emphasizes that size not undeviating proxy to maturity dinosaurs, and morphologies associated with an individual's age stature may be more nebulous sauropods.
Abstract Records of abnormal fossil arthropods present important insight into how extinct forms responded to traumatic damage and developmental complications. Trilobites, bearing biomineralized dorsal exoskeletons, have arguably the most well-documented record abnormalities spanning Cambrian through end-Permian. As such, new records malformed, often injured, trilobites are occasionally identified. To further expand documentation specimens, we describe malformed specimens Lyriaspis sigillum...
The ecosystem impact of megaherbivorous dinosaurs the Morrison Formation would have depended on their abundance (number animals per unit habitat area) landscape. We constrain megaherbivore by modelling dinosaur in terms carrying capacity (K), average body mass (ABM) and animal's energy needs. Two kinds model are presented: 'demand-side' models that estimate K aggregate demand community, 'supply-side' retrodicted primary productivity. Baseline values K, ABM needs for further derived from...
Click to increase image sizeClick decrease size ACKNOWLEDGMENTS Thanks Museum of Western Colorado volunteers Kay Fredette and Ray Bley, who found specimen MWC 6718 in 2008 noted its uniqueness among specimens from the quarry, expeditioner Dan Libecap, 5537 2003, J. Kirkland, put us on trail 1903. Constructive reviews were provided by D. Harris two anonymous reviewers. Work at Mygatt-Moore Quarry is carried out with assistance Bureau Land Management under permit C-60150a; field work was...