cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Pilot study of biobeds application for the remediation of citrus agro-industrial wastewaters
Creators: name: Rezende, Sofía
name: Cesio, María Verónica
name: Archondo, Lucas
name: Russi, Cecilia
name: Martínez, Pamela
name: Rivero, Anisleidy
name: Hladki, Ricardo
name: Heinzen, Horacio
name: Besil, Natalia
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Plant Biology

description: Agro-industrial wastewaters from citrus packaging plants are a significant source of pollution. Looking for a solution, lab-scale biobeds were evaluated for the remediation of fungicides from citrus agro-industry wastewaters. They were constructed under controlled conditions, using an ‘in-house’ designed bio-mixture containing soil, peat and cereal bran (1:1:2). The degradation of imazalil, prochloraz, propiconazole and pyrimethanil was studied individually, as a mixture and in real wastewater from a citric packing house facility. The pesticide behaviour was assessed using a novel validated dispersive sample preparation. The extraction was performed with ethylacetate and a salting out step with sodium tetraborate. The clean-up was performed with MgSO4 and Al2O3. The instrumental determination was carried out by LC-MS/MS in MRM acquisition mode. When studied separately, all the pesticides were dissipated. Particularly, propiconazole showed a 90% concentration reduction after 60 days. Two metabolites of prochloraz of environmental concern: 2,4,6-trichlorophenol and N-formil-N’-propil-N’-2(2,4,6 trichlorophenoxy) ethyl urea were detected, and their chemical structures were confirmed through mass spectrometry experiments. The bio-mixture was also efficient in dissipating the four pesticides when applied together in a single biobed. Real wastewaters from a citric agro-industry containing pyrimethanil and imazalil were tested using the same conditions. Both compounds dissipated 50% and 79% respectively, within 70 days.
Bounding the mass of the graviton with gravitational waves: Effect of higher harmonics in gravitational waveform templates
Creators: name: Arun, K G
name: Will, Clifford M
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Observations by laser interferometric detectors of gravitational waves from inspiraling compact binary systems can be used to search for a dependence of the waves' propagation speed on wavelength, and thereby to bound the mass or Compton wavelength of a putative graviton. We study the effect of including higher harmonics, as well as their post-Newtonian amplitude corrections, in the template gravitational waveforms employed in the process of parameter estimation using matched filtering. We consider the bounds that could be achieved using advanced LIGO, a proposed third generation instrument called Einstein Telescope, and the proposed space interferometer LISA. We find that in all cases, the bounds on the graviton Compton wavelength are improved by almost an order of magnitude for higher masses when amplitude corrections are included.
description: 12 pages, 4 figures. Minor changes to the text and the plots. Matches the published CQG version
Paleomagnetism of the Devonian Onondaga Limestone Revisited
Creators: name: Kent, Dennis V.
Publisher: name: Columbia University
Year: 1979
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences

description: Ninety-six oriented samples were collected from 13 sites in the Onondaga limestone of New York for paleomagnetic study, including rock magnetism and magnetic susceptibility anisotropy. The sites were located in a small penecontemporaneous fold and a larger fold of imprecisely known origin, as well as flatlying beds. The natural remanent magnetizations (NRM) give directions (declination 195.1°, inclination 84.4°, and α_95 = 6.9° for N = 13 sites) that are similar to those originally measured for the Onondaga limestone by Graham (1956). Alternating field and thermal demagnetization analyses show that the NRM is a composite of a large viscous component along the present geomagnetic field and a smaller, more stable component of magnetization with a shallow and southerly direction. The site mean directions after 300 Oe of magnetic cleaning, but without correction for bedding tilt, give a formation mean of declination 168.7°, inclination 13.6°, and α_95 = 8.3° for N = 9 sites (the magnetizations at four sites could not be adequately resolved and are omitted). Although the stable magnetization is shown to be of postfolding origin, essentially the same direction is obtained at sites with flat-lying bedding as at the sites with folded bedding prior to tilt correction. Rock magnetic investigations indicate that some form of magnetite is the important magnetic mineral in the limestone. The similarity in magnetic fabric between a small penecontemporaneous fold and a larger fold suggests acquisition of magnetic properties while the sediment was still unconsolidated. The postfolding origin of stable remanence is therefore interpreted as a form of postdepositional detrital remanent magnetism. The paleomagnetic pole position derived from the formation mean direction is located at latitude 39.7°N, longitude 120.7°E (dp = 4.3°, dm = 8.5°) and agrees reasonably well with other Devonian poles from cratonic North America, although a Permian age for the magnetizations of the Onondaga cannot be entirely discounted.
Magnetostratigraphy of Oligocene to Pleistocene Sediments, Sites 558 and 563
Creators: name: Khan, M. Javed
name: Kent, Dennis V.
name: Miller, Kenneth G.
Publisher: name: Columbia University
Year: 1985
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences

description: Integrated magnetostratigraphic and biostratigraphic studies of DSDP Sites 563 and 558 (western North Atlantic) show that, except for a short (~2 Ma) early Miocene hiatus, deposition was continuous from time of seafloor formation (Site 563, between Anomalies 12 and 13; Site 558, between Anomalies 13 and 15) through the Miocene at both sites. Several biostratigraphic datum levels, which have been correlated firmly with magnetic polarity chrons elsewhere, allow correlation of the magnetostratigraphy with the geomagnetic polarity time scale. Based upon that calibration, sediment accumulation rates were low to moderate (< 10 m/Ma) in the Oligocene-early Miocene and higher (> 10 m/ Ma) in the middle-late Miocene after a short hiatus (Chron C5E is missing at both sites). The established magnetochronology is used to make direct magnetobiostratigraphic correlations. For the Oligocenelower Miocene samples, these correlations agree well with previously published first-order correlations. However, our correlations differ from the earlier indirect middle to upper Miocene correlations. In particular, indirect methods were previously used to correlate magnetostratigraphic Chron 11 ( = Zone NN9) with marine Anomaly 5A (Chron C5AN). However, Zone NN9 ( = Chron 11) and associated Zone N16 occur in a long normal interval at Sites 563 and 558 that best correlates with marine magnetic Anomaly 5. This reassignment (Chron 11 = Anomaly 5 = Chron C5N) requires an approximately 1.5 2 Ma upward shift in nannofossil zonal boundaries NN7/NN8 through NN10/NN11. The stratotype lower upper Miocene (Tortonian) is biostratigraphically linked with Zones NN9-NN11. Because Zone NN9 occurs in magnetic Anomaly 5 correlative (Chron C5N), the middle-upper Miocene boundary (basal Tortonian) is probably near the base of Chron C5N, with an estimated magnetochronologic age of 10.4 Ma.
Microenvironmental Transthyretin Amyloid Deposition Alters Cardiac Myocyte Structure and Function
Creators: name: Spanghero, Emanuele
Publisher: name: University of Illinois at Chicago
Year: 2022
Subjects: Uncategorized

description: Wild-type transthyretin amyloidosis is caused by the systemic deposition of amyloid fibrils in the extracellular environment of many organs. These fibrils consist of misfolded transthyretin (TTR) that derive from the disassembly of the physiological tetrameric state of the native protein. The deposit of TTR fibrils in the heart leads to cardiac dysfunction and it is estimated to be a major cause of heart failure with preserved ejection fraction (HFpEF) in the elderly. The underlying hypothesis of this work is that TTR deposited in the extracellular matrix disrupts the internal sarcomere structure and the mechanical and electrical coupling of myocytes, altering contractility and calcium transient parameters. To test this, a simple bioengineered constructs in vitro model was developed using the physiological stiffness of 10 kPa, microgrooves for cell orientation, and coated with TTR fibrils. Neonatal rat ventricular myocytes cultured on microgrooved polydimethylsiloxane substrates coated with TTR fibrils featured a disorganized sarcomere structure and decreased cell alignment. In addition, N-cadherin content and index for cellular distribution were significantly decreased when cells were plated on TTR fibril-coated dishes. On glass-bottom dishes, TTR fibrils induced a decreased connexin 43 content, and, on soft 10kPa polyacrylamide substrates, myocytes demonstrated an overall decreased contractility when TTR fibrils were present, and delayed and irregular calcium intensity profiles. A deeper knowledge of this disease and a better understanding of the effects of TTR fibrils on cardiomyocytes could potentially lead to more effective and more affordable therapies.
title: Spatial Ecology of Coyotes and Cougars: Understanding the Influence of Multiple Prey on the Spatial Interactions of Two Predators
Creators: name: Mahoney, Peter J.
Publisher: name: Utah State University
Year: 2017

description: The extent to which predators regulate prey populations remains a subject of debate. Yet, when predator control is employed as a management strategy, it is often assumed that predators can and do regulate prey populations. From 2011 through 2015, I monitored the demography and space use of coyotes (Canis latrans) and cougars (Puma concolor) on Monroe Mountain in Fishlake National Forest, Utah as part of a larger collaboration investigating the impacts of coyote aerial control on mule deer (Odocoileus hemionus) neonate survival. My primary objective was to assess the impacts of anthropogenic regulation on the respective populations and identify any cascading effects relevant to mule deer management. To meet this objective, I established a monitoring program for both predators by deploying radio-telemetry collars (VHF and GPS) on each, documented predation events, established surveys for small mammals and lagomorphs to monitor primary prey populations during deer parturition (June – August), and collected data on the location and demographic composition of winter-removed coyotes. I analyzed these data primarily in a community-based, animal movement and resource selection framework permitting the integration of data from multiple sources. When evaluating coyote aerial removal as a management strategy, I identified a spatial dependency in the ability to match removals with indices of deer recruitment as Wildlife Services Operations personnel were primarily limited by terrain and tree cover. Thus, matching treatment with deer fawning was highly variable with only a small number of sites where removals were effective. In addition, I found that coyotes selected for sites with the highest densities of lagomorphs while avoiding areas with a high probability of encountering cougars. Coyotes did not select for mule deer fawning sites, although individual coyotes that occupied resource-poor home ranges were more likely to do so. Cougars strongly selected for mule deer high use areas throughout much of the year, only switching to elk (Cervus elaphus) during the cougar harvest season (i.e., winter). Data from cougar kill site investigations match the observed patterns in cougar space use. My results suggest that predator-prey processes are multi-dimensional and dynamic through time, which likely contribute to the lack of resolution regarding the efficacy of predator control and the regulatory potential of predators in general.
N = 2 SCFTs: An M5-brane perspective
Creators: name: Chen, Bin
name: Colgáin, Eoin Ó.
name: Wu, Jun-Bao
name: Yavartanoo, Hossein
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Inspired by the recently discovered holographic duality between N=2 SCFTs and half-BPS M-theory backgrounds, we study probe M5-branes. Though our main focus is supersymmetric M5-branes whose worldvolume has an AdS_n factor, we also consider some other configurations. Of special mention is the identification of AdS_5 and AdS_3 probes preserving supersymmetry, with only the latter supporting a self-dual field strength.
description: 27 pages
A survey of the literature of the philosophy of history
Creators: name: Butler, A. Ross
Publisher: name: University Of Tasmania
Year: 2023

description: It is widely accepted that philosophy of history may be divided into two main parts: analytical philosophy of history and, what is variously termed - substantive, or speculative philosophy of history. The former is taken by many writers to be what Gardiner calls \a second-order form of inquiry\" having as an aim not \"to elucidate and assess the human past itself but ... to elucidate and assess the ways in which historians typically describe or comprehend that past.\" It has to do with such matters as \"the presuppositions underlying historical narratives the categories implicit in historical judgement and explanation and the modes of argument whereby historical conclusions are supported or established.\" It is in part two of this dissertation that consideration is given to some of the issues and questions which typically appear under the rubric \"analytical philosophy of history.\" Speculative or substantive philosophy of history generally takes as its subject matter history as a whole. For writers whose works have been assigned by critics to this category of inquiry a major concern has frequently been that of seeking order in the apparently chaotic stream of historical events. Attempts have been made to discern \"meaning\" or \"significance\" in the course of events; to see in events the embodiment of a principle or a necessary component in an overall scheme of things the final realization of which may be worldly or otherworldly. The course of events is variously seen as serving the end of the perfectibility of man and his social relations or the eschatological vision of religion. Attempts have been made by some writers impressed by the advances made by science through the formulation of laws and generalizations to discover universal laws of human nature or of history by which the events of history could be explained (and as implied by some predicted) with the same certainty andprecision found in science. The status of empirical inquiry has frequently been claimed for \"speculative philosophies of history.\" But this has been denied by practising historians and philosophers distrustful of the over-predominant aprioristic overtones found in these writings. As Dray has pointed out \"the construction of speculative systems of history is somewhat out of fashion\" but has \"still not quite achieved the fossil status often attributed to cosmology.\"6 He cites as the reason for this the predominantly Judaic-Christian nature of our culture and the expectation that history should be \"meaningful.\" Part one consists of an historical outline of philosophical reflection on history and incorporates consideration of the ideas of \"speculative philosophers of history.\""
Amino-functionalised cross-linked polyacrylamide for the adsorption of U(VI) ions from contaminated aqueous solutions
Creators: name: Younes, Ahmed A.
name: Masoud, Ahmed M.
name: Taha, Mohamed H.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified

description: The present work discusses the adsorption of U(VI) ions from aqueous solutions using amino-functionalised cross-linked polyacrylamide adsorbent. Functional groups identification and surface morphology of the prepared polymeric adsorbent were explored by Fourier Transform Infrared (FTIR), elemental analysis and Scanning Electron Microscope (SEM) techniques. The adsorption of U(VI) ions from aqueous solutions using the prepared polymeric adsorbent was studied and the optimum adsorption conditions were addressed. The results showed that a maximum adsorption capacity of 68.6 mg/g could be achieved at room temperature under the following conditions; solution pH 4.0, contact time 240 min and adsorbent dose 0.7 g/ L. The adsorption process was found to follow Langmuir isotherm model with pseudo-second order kinetic mechanism. Moreover, the thermodynamic studies suggested that the adsorption process is spontaneous and exothermic. Experiments on the adsorbent regeneration and reusability were carried out and the results were promising. As a final point, the prepared polymeric adsorbent was applied for the removal of U(VI) ions from real contaminated sample and about 96% of U(VI) ions were removed in a single run.
Laschamp Excursion at Mono Lake?
Creators: name: Kent, Dennis V.
name: Hemming, Sidney R.
name: Turrin, Brent D.
Publisher: name: Columbia University
Year: 2002
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences

description: The Laschamp Geomagnetic Excursion (ca. 41 ka) and a related increase of cosmogenic nuclides provides a global tie point among sedimentary and ice core records. In the Wilson Creek Formation, Mono Lake, California, the Laschamp Excursion has not been recognized although the so-called Mono Lake excursion was found in the section with an estimated age of about 28 14C ka. However, our reevaluation of the age of the Mono Lake excursion at its type locality using new 14C dates on carbonates and 40Ar/39Ar sanidine dates on ash layers yields an estimate of 38-41 ka. This chronology and the absence of a second excursion in the Wilson Creek Formation suggest that the distinct paleomagnetic feature with negative inclinations at Mono Lake is correlative with the Laschamp Excursion.
Static solutions of the combined Dirac-electromagnetic-gravitational field equations
Creators: name: O'Hanlon, John David
Publisher: name: University of British Columbia
Year: 2011

description: It is assumed that charged, spin-½, matter distributions can be described in terms of a Dirac spinor field interacting with the electromagnetic field and a scalar gravitational field. The field equations and the energy-momentum tensor are found from an action principle. The fields are not quantized. The field equations are examined and various limiting forms discussed. This thesis deals particularly with the time-independent spherically-symmetric case. Solutions are found for the exterior region of a charged gravitating sphere. The behaviour of these solutions depend on the value of the charge-mass ratio. When this ratio has the value (4πG)½, where G is the gravitational constant, the entire system can be solved analytically. The ensuing solution, called the Weyl-Majumdar solution, is obtained and discussed. When the charge-mass ratio is smaller than (4πG)½, normalised solutions are found which yield electrostatic and gravitational potentials singular at the origin. The matter density is well-behaved everywhere. Normalised solutions were not found for larger charge-mass ratios. The significance of the solutions, and the accuracy of the numerical technique are discussed. Alternative Lagrangian densities are considered which may yield non-singular solutions.
Occurrence, distribution, fate and quantitation of phthalates in soils: a review
Creators: name: Singh, Ishan
name: Vaidya, Atul Narayan
name: Kumar, A. Ramesh
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Phthalates are ubiquitous contaminants occurring in all environmental compartments worldwide. In soils, it occurs at higher levels compared to other organic contaminants. Consequently, humans are exposed to phthalates constantly via air, dust, food and water. This paper reviews phthalates occurrence in soils of agricultural, industrial and urban areas. Diethyl hexyl phthalate and di-n-butyl phthalate are frequently detected in these areas, and their combined concentrations contribute about 60–80% to total phthalate concentrations. Microbial degradation is the primary process determining the fate of phthalates in soil. Gas, and liquid chromatographic techniques coupled to mass spectrometry techniques are generally used for phthalates determination. Reliable quantitation warrants stringent quality control measures as phthalates are present in laboratory air, solvents, and other labwares. Suggestions to minimise background contamination are outlined.
Late Triassic-earliest Jurassic geomagnetic polarity reference sequence from cyclic continental sediments of the Newark rift basin
Creators: name: Kent, Dennis V.
name: Olsen, Paul E.
name: Witte, William K.
Publisher: name: Columbia University
Year: 1995
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: The global nature of geomagnetic polarity reversals has made magnetostratigraphy an essential tool for precise correlation between widely distributed sections of rocks of different lithological and biotic facies. The best documented history of geomagnetic polarity reversals is for the Jurassic to Recent and is based on the analysis of numerous marine magnetic anomaly profiles from the global ocean (e.g., Cande and Kent, 1992; Gradstein et al., 1994). The relative spacing of polarity intervals established from the anomaly patterns is calibrated in time by correlation to magnetostratigraphic sections with biostratigraphy, radiometric dates, and cyclostratigraphy. Because of the absence of seafloor and hence marine magnetic anomalies, a precise geomagnetic polarity reference scale for pre-Jurassic time has been more difficult to develop. There has already been significant progress made for the Late Triassic by assembling relatively condensed or discontinuous marine (e.g., Gallet et al., 1992; 1993) and continental (e.g.. Molina-Garza et at., 1991) sedimentary sections, but thick, continuous magnetostratigraphic sections with good chronostratigraphic control are needed to construct a high resolution reference scale.
Optimisation of a photocatalytic water treatment using response surface methodology and quality by design Approach
Creators: name: Mouchtari, El Mountassir El
name: Claeys-Bruno, Magalie
name: Rafqah, Salah
name: Manzon, Diane
name: Anane, Hafid
name: Lebarillier, Stéphanie
name: Piram, Anne
name: Briche, Samir
name: Wong-Wah-Chung, Pascal
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology

description: Many water treatment methods have been developed to remove organic pollutants from contaminated waters. Their efficiency is usually assessed by removal measurements, and the effect of operational factors on the process is rarely explored. To bridge this gap, an experimental design methodology has been applied to optimise an advanced oxidation process combining adsorption and photocatalysis, using AZURAD® software. This approach was applied to the removal of carbamazepine (CBZ) in aqueous solution by a bio-sourced activated carbon and TiO2 composite material under light exposure. Two experimental designs were performed considering three quantitative factors (pH, catalyst dose and temperature) and one qualitative factor (dissolved oxygen concentration). From the response surface methodology (RSM), the optimised operational factors for CBZ adsorption and degradation were independently determined. Using desirability function approach, commonly optimised conditions for both processes were assessed with a catalyst dose of 0.13 g.L−1, oxygen saturated medium and either pH = 9.5 and T = 40°C or pH = 7.8 and T = 10°C. The Quality by Design approach showed that the experimental conditions could vary maintaining the adsorption and photocatalysis process removal efficiency (with more than 70% and 80%, respectively) with a high probability of 80%. This highlights the robustness of the treatment process and its potential upscaling.
Reading Indigeneity in Children's Literature: What are the implications?
Creators: name: Hitchcock, LA
Publisher: name: University Of Tasmania
Year: 2023

description: The influence of children's literature on the lives of children is well documented and this important resource provides educators with a means to enrich students' lives. Literature can provide not only pleasurable experiences for students but contribute significantly to their cognitive, social, cultural, and emotional development. The importance for teachers to be cognisant of the effects the literature they present to students is considerable, and because of Australia's colonial past and the lingering effects of being a settler society the Indigenous representations in children's literature are of particular significance. This research project's aim was to reveal the implications for education of Indigenous identities constructed in children's literature. Indigenous representations in children's literature have been critically evaluated in previous work completed in this field. However, this study's had a different approach than in previous work as the implications of Indigenous identities for education was the focus and the other difference was the use of postcolonial literary criticism along with critical multimodal discourse analysis to examine picture books. This enabled a critical evaluation of the three Indigenous picture books language and image choices to reveal the texts' underlying ideological systems. The critical evaluation was underpinned by the themes revealed as significant from the literature review which included, a discourse of 'othering', monolithic Indigenous representations, the valuing of Indigenous cultures, and essentialised representations of Indigeneity, which were all found to be meaningful in the texts. The study answered the question and revealed the implications for education are significant as teachers need to be critically aware of the representations of Indigeneity to ensure that teachers present Indigenous literature that develops students' appreciation and awareness of Indigeneity in its multiplicity so they can contribute to the development of Australia. The findings that are significant for the field include: essentialised, monolithic and 'othered' Indigenous representations that were revealed in the non-Indigenous constructed texts; Langton's (1993) Indigenous textual construction categories were confirmed by the research; the common practice of using a non-Indigenous focaliser by non-Indigenous authors to navigate Indigenous cultures and the potential effects of this on Indigenous identities in children's literature was a new idea for the field; and stereotypical depictions of Indigenous females common in non-Indigenous textual constructions that have been identified in other work was supported by the study.
Late Triassic-earliest Jurassic geomagnetic polarity sequence and paleolatitudes from drill cores in the Newark rift basin, eastern North America
Creators: name: Kent, Dennis V.
name: Olsen, Paul E.
name: Witte, William K.
Publisher: name: Columbia University
Year: 1995
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences

description: Paleomagnetic study of about 2400 samples from nearly 7 km of core recovered at seven drill sites in the Newark continental rift basin of eastern North America provides a detailed history of geomagnetic reversals and paleolatitudinal motion for about 30 m.y. of the Late Triassic and earliest Jurassic (Carnian to Hettangian). Northward drift of only about 7° is recorded in the continental sediments and minor interbedded basaltic lavas in the basin, from 2.5° to 6.5° north paleolatitude in the Carnian and from 6.5° to 9.5° north paleolatitude over the Norian-"Rhaetian" and the early Hettangian. A total of 59 polarity intervals, ranging from about 4 m to over 300 m in thickness, have been delineated in a composite stratigraphic section of 4660 m. The lateral continuity and consistent relationship of lithological lake level cycles and magnetozones in the stratigraphically overlapping sections of the drill cores demonstrate their validity as time markers. A geomagnetic polarity timescale was constructed by scaling the composite section assuming that lithostratigraphic members in the predominant lacustrine facies represent the 413-kyr orbital periodicity of Milankovitch climate change and by extrapolating a sedimentation rate for the fluvial facies in the lower part of the section; a 202 Ma age for the palynological Triassic/Jurassic boundary was used to anchor the chronology based on published concordant radiometric dates linked to the earliest Jurassic igneous extrusive zone. Geomagnetic polarity intervals range from about 0.03 to 2 m.y., have a mean duration of about 0.5 m.y., and show no significant polarity bias. The cyclostratigraphically calibrated record provides a reference section for the history of Late Triassic-earliest Jurassic geomagnetic reversals. Correlations are attempted with available magnetostratigraphies from nonmarine sediments from the Chinle Group of the southwestern United States and marine limestones from Turkey.
title: Effects of Beaver on Stream Flow and Water Quality
Creators: name: Bates, James W.
Publisher: name: Utah State University
Year: 1963

description: Water, one of the major resources of the western lands, controls the economy and expansion of the communities. Industry, agriculture, timber, livestock, game and home water needs are all dependent upon a steady and continued flow of water from wells, springs, and rivers. Water is derived from one source, precipitation, which occurs in the form of rain and snow. Watersheds which are properly managed accumulate a substantial snow pack during the winter which is the life-giving source of water for our springs.
The Utah Water and Power Report (1948) indicates the annual precipitation over the entire state of Utah averaged 11.5 inches. A total of 53 ,000,000 acre-feet of water falls within the boundaries of the state of Utah each year, the amount varying with elevation and topography. The Bear River contributes an average of 725,000 acre-feet. A total of 2,334,000 acre-feet is carried away each year by streams leaving the state, leaving the net amount of 51 ,391,000 acre-feet to be consumed within the state. Water consumed on irrigated lands represents less than five percent of the total amount while evapotranspirational losses from the watersheds and grazing lands amount to almost 75 percent of the total water supply. Utah has approximately 1,500,000 acres of land suitable for agricultural production without a water supply; and of the 1,000,000 or more acres of irrigated land, only 25 percent has adequate and dependable supply of water. Droughty conditions and low water supplies are becoming more acute in the state of Utah each year, creating a need for water conservation.
Detecting inorganic arsenic below WHO threshold limit; A comparative study of various sensors
Creators: name: Khan, Ezzat
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Astronomical and Space Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: The issue of heavy metals contamination of environmental segments is becoming serious day by day with industrial and electronic developments. Economic growth and environmental issue are parallel in many aspects. For instance, increased number of vehicles and rapid industrialisation are indicators of economic growth. Economic run is important and shall continue because it is associated with global needs while environmental pollution is otherwise. Necessary steps are required to be taken to control the release of unwanted chemicals including heavy metals and arsenic to the environment. Arsenic is present in water both in its organic and inorganic form. Among these forms inorganic arsenic (As(III) and As(V)) are very toxic. WHO has recommended a threshold limit for As(III) in drinking water i.e. 10 ppb (equivalent to 10 μg L−1 or 133 nM). Sensing of arsenic has been made possible due to several techniques with a wide range of detection limit. Herein very recent As(III) sensors with detection limit below 10 ppb, mechanism of detection at certain instances, interferants during measurements and future goals have been discussed. Further, the review article covers literature mostly from 2015 to 2021.
Equatorial paleosecular variation of the geomagnetic field from 0 to 3 Ma lavas from the Galapagos Islands
Creators: name: Kent, Dennis V.
name: Wang, Huapei
name: Rochette, Pierre
Publisher: name: Columbia University
Year: 2010
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences
subject: Geology, Stratigraphic

description: Complete progressive thermal demagnetization of nearly 400 oriented samples from 58 sites (lava flows) from the Galapagos Islands of Santa Cruz, San Cristobal and Floreana provide data for the statistical characterization of the time-averaged geomagnetic field near the Equator for the past few million years. Estimates of VGP dispersion due to paleosecular variation range from 9.2° to 11.8° depending on site selection criteria; our preferred estimate based on 64 site VGPs (51 accepted from this study and 13 from the 1971 study by Cox) is 11.4° (95% confidence interval 10.2–13.0°), consistent with previous estimates from the Galapagos Islands as well as paleosecular variation Model G, and confirming that angular dispersion of VGPs near the Equator is relatively low. The mean direction is not significantly different from a geocentric axial dipole field when account is taken of southward plate motion over the Galapagos hotspot. Preliminary paleointensity results from a comparison of the natural remanence with a total thermal remanence produced in a lab field of 15 μT on a subset of 321 samples from 48 sites that had relatively small changes in magnetic susceptibility after laboratory heating suggest that the time-averaged field was about 21 μT, or only two-thirds the present strength, in agreement with some other recent estimates.
title: The Use of Mental Imagery Among Young Children in the Acquisition of Piaget's Principles of Conservation
Creators: name: Sweetland, Richard C.
Publisher: name: Utah State University
Year: 1968

description: This study attempted to discover some parameters in terms of mental age at which young children, ages five through eight, begin to utilize effectively their mental imagery in the learning process. Using Piaget's principles of conservation as a learning task, subjects were taught in one of two groups: Group one was instructed in conservation concepts by use of concrete example, in which case they were allowed to see, handle and manipulate materials as they underwent transformations. Group two received identical instruction but were called upon to use their mental imagery to visualize the materials undergoing transformations.
Based upon the administration of the California Test of Mental Maturity and a pretest, sixteen non-conserving subjects from the kindergarten, first, second, and third grades, making a total of sixty-four subjects, were grouped by matching I.Q.'s to receive four periods of instruction in the principles of conservation. Following instruction each subject was individually administered a posttest and a test of extinction. The test of extinction was designed to measure the degree or depth of conservation acquisition achieved by each subject.
A statistical analysis of the data indicated that while children of ages five through eight were able to learn conservation through both methods of instruction, mental age and I.Q.'s were not determining variables. No learning curve based on mental age or I.Q. was discernible. It was strongly indicated, however, that boys resist extinction of conservation principles better when taught through concrete example than they do when taught through mental imagery. Girls utilize mental imagery in acquiring conservation better than do boys of the same age, and as well as boys who learn by use of concrete illustration. Girls' use of mental imagery in the learning process appears to be equal to their use of concrete example.
title: The Effects of an Introduction to Psychology Course on College Students' Superstitions and Beliefs Which Have Some Scientific Sanction
Creators: name: Mitchell, Helen Daines
Publisher: name: Utah State University
Year: 1969

description: The study was conducted to investigate the effects of an introduction to psychology course on college students' superstitions and beliefs which have some scientific sanction. The test used was selected from H. K. Nixon's 1925 study on answers to psychological questions and considers 30 statements to be marked true or false.
Subjects used for this study were 100 men and 100 women students in a beginning psychology course at Utah State University, Logan, Utah. The first administration of the questionnaire was given during the first week of the class with a follow-up administration given during the final week of class.
The raw scores earned by each student on the questionnaire of beliefs and superstitions were treated with the chi square method of statistical analysis. One statistically significant change occurred at the 1 percent level--the course altered or influenced the belief in the superstition that long slender hands indicate an artistic nature. There appears to be little effect of a beginning psychology course in changing the superstitions and beliefs in beginning psychology students.
title: Effects of Gold Compounds on Rat Behavior
Creators: name: Kaye, Jonas
Publisher: name: Utah State University
Year: 1969

description: Seven rats were trained on Fixed Ratio 20 and two on Fixed Ratio 12 Escape Schedules until a stable baseline was established. Five of the subjects were administered gold thioglucose, three received gold thiomalate, and one was injected with gold, gold thioglucose, and gold thiomalate, allowing for an intrasubject comparison. Colloidal gold appeared to suppress response rate for one or two sessions, while gold thioglucose and gold thiomalate suppressed normal response rates from several to a number of sessions. This response rate suppression was often followed by gradual recovery, although in several subjects recovery of response rate could not be achieved prior to termination of the experiments.
The drop in response rate was more consistent for the gold thiomalate-treated subjects than for the gold thioglucose group. A toxic effect of the injected compounds was manifest as a loss of weight, which was regularly associated with a drop in response rate. This weight reduction was greatest in the gold thiomalate-injected animals, indicating that gold thiomalate is probably more toxic than gold thioglucose to rats.
Tolerance was developed for gold thioglucose and gold thiomalate, as indicated by smaller response rate decrements after repeated injections of the compound. As a consequence of repeated drug administrations, the animals demonstrated that they could tolerate a 1 milligram per gram of body weight dose of gold thioglucose if the dosage was increased gradually from a low-dosage initial injection. This dosage of 1 milligram per gram of body weight is double the amount required to produce demonstrable hypothalamic lesions in the rat. Previous investigations have failed to demonstrate this degree of tolerance in rats, primarily because the animals did not have the opportunity to adapt themselves to this treatment.
Decrease in spontaneous activity on a balance beam apparatus was observed in several rats following administration of the larger gold thioglucose dosages (i.e., 0.5 milligrams per gram of body weight to 1.0 milligram per gram of body weight), as well as following the administration of gold thiomalate.
Dosages of 20 milligrams to 50 milligrams of gold chloride were lethal to two rats.
The heavy dosage of gold thioglucose administered to the female rat subjects at Utah State University (i.e., up to 1 mg per gram of body weight), although potentially producing extensive hypothalamic lesions, did not produce demonstrable hyperphagia or obesity, probably due to the anorexia and hypophagia associated with liver and kidney damage,which could counteract the hyperphagia expected to be associated with the extensive hypothalamic lesions produced at dosages over 0.5 milligram per gram of body weight following gold thioglucose administration.
Subwavelength resolution for horizontal and vertical polarization by coupled arrays of oblate nanoellipsoids
Creators: name: Mateo-Segura, Carolina
name: Simovski, Constantin
name: Goussetis, George
name: Tretyakov, Sergei
Publisher: name: arXiv
Year: 2009
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A structure comprising a coupled pair of two-dimensional arrays of oblate plasmonic nanoellipsoids in a dielectric host medium is proposed as a superlens in the optical domain for both horizontal and vertical polarizations. By means of simulations it is demonstrated that a structure formed by silver nanoellipsoids is capable of restoring subwavelength features of the object for both polarizations at distances larger than half-wavelength. The bandwidth of subwavelength resolution is in all cases very large (above 13%).
description: 3 pages with 6 figures
Continuous Model Adaptation Using Online Meta-learning
Creators: name: Li, Jinghang
Publisher: name: University of Illinois at Chicago
Year: 2022
Subjects: Uncategorized

description: The rapid development of the internet of things and computing technologies makes it possible for researchers to have access to big data and develop data-driven models for complex engineering system monitoring and control in a variety of areas, while few works have been done investigating how to intelligently control hyperparameter settings through continuously updating the model with real-time data input. In our work, a novel online meta-learning framework is proposed for real-time data input pattern shifts’ digestion and provide accurate prediction and classification results compared to existing base-learning and meta-learning algorithms; A novel DDPG-based framework is developed later to combine model selection and hyperparameter optimization, formulate them into a sequential Markov decision making problem, which quickly indicates model suggested to be used for data sequence input and adaptively controls model hyperparameters with real-time response and provide better outcomes.
title: A Study of the Relationship Between Anxiety, Manifest Needs, and Creativity in Upward Bound Students
Creators: name: Davidson, Neal A.
Publisher: name: Utah State University
Year: 1967

description: Previous investigators have indicated that low socio-economic students have difficulty experiencing success on tests heavily loaded with verbal material. Differences in personality characteristics between students of high and low creativity have also been found. The purpose of the present study was to investigate the influence of manifest needs and anxiety on creative thinking.
The Taylor Manifest Anxiety Scale, which determines anxiety level, the Edwards Personal Preference Schedule, which measures manifest needs, and the Torrance Tests of Creative Thinking, which provides an index of creativity were administered to Spanish-American, Anglo-American, Negro, and Navaho high school students, who constituted the 1967 Upward Bound population at Utah State University. The total sample, composed of the four ethnic backgrounds, was administered the Torrance Tests of Creative Thinking. The students were ranked on the basis of their total creativity score, and high and low creativity groups were extracted at the median. The results indicate that Upward Bound students are significantly higher in figural than in verbal creativity. No significant differences between high and low creativity students were found on anxiety or manifest needs, although a negative trend between anxiety and creativity was suggested.
An estimate of the duration of the faunal change at the Cretaceous-Tertiary boundary
Creators: name: Kent, Dennis V.
Publisher: name: Columbia University
Year: 1977
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: A detailed analysis of sedimentation rates in the Upper Cretaceous-Paleocene section of pelagic limestones at Gubbio, Italy, based on the previously reported correlation of Gubbio magnetozones with the calibrated sequence of marine magnetic anomalies, suggests that the faunal overturn in planktonic foraminifera at the Cretaceous-Tertiary boundary may have happened rapidly, on the order of 10,000 yr or less.
Open-system dynamics of graph-state entanglement
Creators: name: Cavalcanti, Daniel
name: Chaves, Rafael
name: Aolita, Leandro
name: Davidovich, Luiz
name: Acin, Antonio
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider graph states of arbitrary number of particles undergoing generic decoherence. We present methods to obtain lower and upper bounds for the system's entanglement in terms of that of considerably smaller subsystems. For an important class of noisy channels, namely the Pauli maps, these bounds coincide and thus provide the exact analytical expression for the entanglement evolution. All the results apply also to (mixed) graph-diagonal states, and hold true for any convex entanglement monotone. Since any state can be locally depolarized to some graph-diagonal state, our method provides a lower bound for the entanglement decay of any arbitrary state. Finally, this formalism also allows for the direct identification of the robustness under size scaling of graph states in the presence of decoherence, merely by inspection of their connectivities.
description: 4 pages, 2 figs - accepted by PRL