cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Magnetostratigraphic, biostratigraphic, and stable isotope stratigraphy of an Upper Miocene drill core from the Salé Briqueterie (northwestern Morocco):...
Creators: name: Hodell, David A.
name: Benson, Richard H.
name: Kent, Dennis V.
name: Boersma, Anne
name: Rakic-El Bied, Kruna
Publisher: name: Columbia University
Year: 1994
Subjects: subject: Oceanography
subject: FOS: Earth and related environmental sciences
subject: Geophysics

description: We report a high-resolution stable isotope, carbonate, magnetostratigraphic, and biostratigraphic record from a 175-m drill core from the Salé Briqueterie, which is part of the Bou Regreg section in northwestern Morocco. The Salé drill core spans the interval from paleomagnetic Chron C4n partim to C3r (earliest Gilbert), which represents the time leading up to and including the isolation and desiccation of the Mediterranean (i.e., the Messinian salinity crisis). During Chrons C3An and C3Ar (6.935 to 5.894 Ma) the isotope and carbonate signals display quasi-periodic variations with estimated periods of 40 and 100 kyr, respectively. We interpret the 40-kyr δ^18O variations as reflecting changes in global ice volume caused by obliquity-induced changes (41 kyr) in solar insolation in polar regions. The 100-kyr carbonate variations probably represent long-term modulation of the amplitude of the precessional cycle (~21 kyr), which is not resolved by our sampling frequency. The cyclic nature of the oxygen isotope signal permits us to extend the isotope nomenclature of Shackleton et al. (1994a) from stage TG24 in Chron C3r (earliest Gilbert) to stage C3Ar.δ^18O.18 at the base of Chron C3Ar (6.935 Ma). A major change in paleoceanographic conditions is recorded across the Tortonian/Messinian boundary, which we correlate to Chron C3Bn at 7.04 Ma. Benthic foraminiferal δ^18O values increased by an average of 0.4‰ in two steps at 7.17 Ma and 6.8 Ma and δ^13C values decreased by 0.7-0.8‰ between 7.1 and 6.8 Ma, representing the late Miocene carbon shift. The first step in δ^18O values coincides with an inferred reversal in deep water circulation through the Rifian Corridor, and the second correlates with the base of the Tripoli Formation and onset of "crisis conditions" in the Mediterranean. We suggest that the increase in δ^18O values represents, at least in part, an increase in global ice volume that lowered sea level and contributed to the establishment of a negative water budget in the Mediterranean. Average δ^18O values remained high throughout most of Chrons C3Ar and C3An, reaching maximum δ^18O values during isotope stages TG20 and 22 in Chron C3r (earliest Gilbert). The glacio-eustatic falls associated with these events may have resulted in the complete isolation of the Mediterranean from the world ocean (Shackleton et al., 1994a). Following stage TG12 in the Salé record, there exists a trend toward progressively lower δ^18O values that may represent a series of marine transgressions that eventually reflooded the Mediterranean and ended the Salinity Crisis.
Random walks on discrete cylinders with large bases and random interlacements
Creators: name: Windisch, David
Publisher: name: arXiv
Year: 2009
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60G50, 60K35, 82C41

description: Following the recent work of Sznitman (arXiv:0805.4516), we investigate the microscopic picture induced by a random walk trajectory on a cylinder of the form G_N x Z, where G_N is a large finite connected weighted graph, and relate it to the model of random interlacements on infinite transient weighted graphs. Under suitable assumptions, the set of points not visited by the random walk until a time of order |G_N|^2 in a neighborhood of a point with Z-component of order |G_N| converges in distribution to the law of the vacant set of a random interlacement on a certain limit model describing the structure of the graph in the neighborhood of the point. The level of the random interlacement depends on the local time of a Brownian motion. The result also describes the limit behavior of the joint distribution of the local pictures in the neighborhood of several distant points with possibly different limit models. As examples of G_N, we treat the d-dimensional box of side length N, the Sierpinski graph of depth N and the d-ary tree of depth N, where d >= 2.
description: 47 pages, 2 figures, accepted for publication in the Annals of Probability
title: The Development of a Vocational Interest Inventory Using "Worker-Oriented" Job Elements
Creators: name: Harris, Alma F.
Publisher: name: Utah State University
Year: 1971

description: The purpose of this study was to develop a vocational interest inventory, using the "worker-oriented" job elements of Dr. Ernest J. McCormick and his associates, and to assess the reliability of the resulting instrument.
The interest inventory was prepared, based on 191 of the questions from the Position Analysis Questionnaire, and the test-retest reliability was calculated for a sample of 71 high school students, over a three-week period.
The mean correlation coefficient for the five over-all "job dimension" scores of the interest inventory was .80, and the average item reliability was .54. These coefficients were considered high enough to justify additional development and research on the instrument.
title: N-Achievement Motivation of Male Navaho Indian Students as Measured by an Acculturated N-Achievement Scale
Creators: name: Ivory, Rex C.
Publisher: name: Utah State University
Year: 1971

description: The problem which formed the basis of this research was to answer the question: "Can an acculturated version of McClelland's original n-Achievement scale be significantly more effective in measuring n-Achievement motivation of male Navaho Indian subjects than McClelland's original n-Achievement scale?" An answer to this question would hopefully be reason enough for using an acculturated n-Achievement scale to provide new information relative to the Navaho Indian's need to achieve.
The major underlying objective of this study was to develop a more effective projective scale than McClelland in measuring a Navaho Indian's n-Achievement motivation. This objective was not reached; however, the acculturated scale did elicit a measure of n-Achievement motivation comparable to the original McClelland scale.
No significant differences were obtained on the three specific hypothesis; all were accepted, indicating that both the acculturated scale and the original scale seem to discriminate about equally well on n-Achievement motivation of male Navaho Indian subjects.
title: Beards and Their Effect on Dimensions of Self Concept
Creators: name: Olsen, Douglas C.
Publisher: name: Utah State University
Year: 1971

description: The effects of beards on aspects of self concept were studied. Experimental and control groups were administered measures of "self concept" in pre and post test situations. The experimental group grew beards while the control group continued to shave during the time interim. Results were analyzed using analysis of covariance, but failed to produce any significant differences.
Differences were found, however, in post test results of the within group variability of the experimental group in two areas: feeling reactivity and capacity for intimate contact. This suggests that possibly beards affect people in a wider variety of ways in their sensitivity to their own needs and feelings and also their capacity to develop warm interpersonal relationships.
title: The Post-Reinforcement Pause and Terminal Rate In Fixed-Interval Schedules
Creators: name: Lund, Charles A.
Publisher: name: Utah State University
Year: 1971

description: California Quail were exposed to fixed-interval schedules whose values ranged from FI 90 to FI 180. Post-reinforcement pause lengths and terminal rates were recorded and grouped into relative frequency distributions. The relative post-reinforcement pause length was found to be an increasing function of FI value such that at larger FI values a proportionally greater period of time was taken up by the post-reinforcement pause. Terminal rate (rate during the final 20% of the interval) was a decreasing function of FI value. The large amounts of variability in terminal rates observed indicated that terminal rate in fixed-interval schedules is not constant from interval to interval as is often reported in the literature. For a given subject, when overall rate of response for a session was plotted as a function of mean pause length for that session, no consistent relationship was found. Among the subjects there were two to three-fold differences in overall rate on FI 90, the only value to which all subjects were exposed. Differences among subjects in mean overall rates were correlated with differences in mean pause lengths, however. Thus, a subject's performance on a fixed-interval schedule could be characterized in terms of pause length and overall rate although rate in any given session was not necessarily correlated with mean pause length for that session, Differences between subjects in mean overall rates were also correlated with differences in mean terminal rates.
Beyond Barthes and Chartier: The Theology of Books in the Digital Age
Creators: name: Elia, Anthony J.
Publisher: name: Columbia University
Year: 2008
Subjects: Library science

description: The purpose of this paper today is to create a discussion about the book-object and its place in both the theological-libraries world and the broader book-reading world. This is a discussion which involves our understanding of the book in its individual, cultural, and literary contexts, and provides us with a framework to perform our librarianship as participants in a world with both books and e-texts. Through the results of my study, the scholarship of Roland Barthes and Roger Chartier, and the examples of literature, I will offer my colleagues in the theological library world a guide to the discursive jungle of textual media; a palate of considerations about the book-object, seen often as obsolescent; and an opportunity to develop a theology of books in the digital age; a theology of books, because books are at the core of our history and the construction of a world view around them and their existence is imperative at this stage of our profession. It is a matter of taking into account the very heart of the book issue and the digitization issue, whatever these may be
Paleogene geochronology: An integrated approach
Creators: name: Aubry, Marie-Pierre
name: Berggren, William A.
name: Kent, Dennis V.
name: Flynn, John J.
name: Klitgord, K. D.
name: Obradovich, J. D.
name: Prothero, D. R.
Publisher: name: Columbia University
Year: 1988
Subjects: subject: Oceanography
subject: FOS: Earth and related environmental sciences

description: Geochronology is the conceptual division of continuous time as measured (geochronometry) by the progression in an ordinal series of events. This is best achieved by an approach which integrates four independent data sets: magnetostratigraphy, seafloor spreading magnetic lineation patterns, biostratigraphy, and isotopic ages. This integrated approach results in an ordinal framework which can measure time with greater resolution, though perhaps less accuracy, than a radiometric approach alone. A comparative analysis of two recently proposed Paleogene geochronologic time scales is presented.
On The Hermeneutics of Books: How Seminary Students Read and the Role(s) of Theological Libraries
Creators: name: Elia, Anthony J.
Publisher: name: Columbia University
Year: 2009
Subjects: Library science

description: It is the purpose of this paper (above all) to bring into focus a discussion on "the study of interpretation" of the book, as well as its readers. Thus, I will present historical and philosophical examples of hermeneutics, while integrating a score of interviews with seminary students about their reading habits as related to books (as objects) and the role that books and students' reading habits play in the role and experience of the modern, contemporary, and future theological library. Specifically, I will begin with discussing topical areas related to hermeneutics—including phenomenology, semiotics, approach, and encounter. Then in part I, I will provide a statistical offering and speak about the specific data of students' reading habits and their opinions about theological libraries; lastly, in part III, I will briefly revisit the theology of books in light of the present research on hermeneutics.
title: The Comparative Effects of Two Reinforcement Schedules Applied to Groups in Teaching Arithmetic Skills
Creators: name: Bennett, Ronald C.
Publisher: name: Utah State University
Year: 1972

description: A behavioral approach to teaching in the public school system is difficult because of the inherent difficulty of finding positive reinforcers and administering them simultaneously to large groups of students.
This study attempts to apply the same tangible reinforcers to two groups of students under different schedules of reinforcement. The students in the study were in special classes termed "learning adjustment" classes because of their failure to perform at grade level in regular classroom settings.
One group was on a continuous schedule of reinforcement using tokens and gold strike stamps as reinforcers. The second group was also on a continuous schedule of reinforcement but with a punishment contingency added. Reinforcers were the same for this group as the first group. The third group was a comparison group.
Performance rates were studied under the above schedules of reinforcement and were found to increase the number of arithmetic units completed for each group.
Achievement level change in mathematics as measured by the mathematics section of the California Achievement Test was a second major aspect of this study.
Although there was a very definite difference in the number of arithmetic units completed by the three groups there was not a corresponding difference in the amount of change in achievement level.
title: The Prediction of Sales Success Among B. F. Goodrich Territory Managers
Creators: name: Fail, Richard F.
Publisher: name: Utah State University
Year: 1972

description: The B. F. Goodrich Company spends considerable money selecting and training territory managers. The hiring of territory managers generally rests with local management's "intuition." Since 1967, a substantial percentage of these highly trained salesmen have separated from the company. It was within this attrition context, that an exploratory, objective, selection program was studied.
A multiple discriminant function (multigroup model) was used to analyze three groups of B. F. Goodrich Territory Managers' California Psychology Inventory and Edwards Personal Preference Schedule test scores.
The data revealed that known territory managers' group membership could be significantly predicted. A longitudinal study (one year later) showed a high percentage of accuracy (i.e. 82 percent) between predicted test score probability group membership and original group membership. Further the multiple discriminant function analysis of territory managers' test scores disclosed that only a few test variables need to be considered in making a probability hiring decision.
Measuring organisation IS/IT effectiveness in the Australian manufacturing industry : an overview of IT manager perspectives
Creators: name: Cheewanan, Achariya
Publisher: name: University Of Tasmania
Year: 2023

description: The objective of this research was to examine the extent to which IS/IT effectiveness is measured in manufacturing industries in Australia. IS/IT (information system/information technology) is an integral yet costly investment for most organisation and its investment are substantial and growing. Since many companies have failed to achieve and maximise the expected benefits of their IS/IT investment, there is a need to ensure that it is providing its maximum. Accordingly, the measurement of IS/IT effectiveness is an essential process in organisations. From a review of related literature three main areas of interest were identified. These are the role of IS/IT in organisations, IS/IT investment management and IS/TT effectiveness measurement. A quantitative method was implemented in this research. In the absence of an available validated instrument, a questionnaire was developed, refined and administered to 300 engineering manufacturing industries across Australia. The key finding of this research was generally Australian manufacturing industries are not well prepared in relation to the measurement of their IS/IT effectiveness measurement. These organisations generally view their IS/TT as a necessary business expense and characterise their IS/IT as current in technology without getting too far ahead of their competition. Because of this, they are more likely to not allocate their time and money for measuring IS/TT effectiveness. As a consequence of the fmdings of this research, it is recommended that engineering manufacturing industries need to take into consideration of the measurement of IS/IT effectiveness. Appropriate time and funding should also be channelled to ensure that IS/IT brings the maximum of both tangible and intangible benefits to the organisation.
A Magnus theorem for some one-relator groups
Creators: name: Bogopolski, Oleg
name: Sviridov, Konstantin
Publisher: name: arXiv
Year: 2009
Subjects: subject: Group Theory (math.GR)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 20F34, 20E45

description: We will say that a group G possesses the Magnus property if for any two elements u,v in G with the same normal closure, u is conjugate to v or v^{-1}. We prove that some one-relator groups, including the fundamental groups of closed nonorientable surfaces of genus g>3 possess this property. The analogous result for orientable surfaces of any finite genus was obtained by the first author [Geometric methods in group theory, Contemp. Math, 372 (2005) 59-69].
description: This is the version published by Geometry & Topology Monographs on 29 April 2008. V2: typographical corrections
Fluid-dynamic effects on the response of offshore towers to wave and earthquake forces
Creators: name: Sen, Asoke Kumar
Publisher: name: University of British Columbia
Year: 2011

description: The evaluation of fluid forces on vibrating framed structures in a fluid environment is of current significance in view of the activity in ocean engineering. Accurate knowledge of the fluid forces under conditions of variable separated flow is lacking. In this study an attempt has been made to find a general method of evaluation of fluid forces on cylinders for variable flow, using published data from tests of constant velocity flow, uniformly accelerated flow and wave motion. The parameters that appear to govern the variable flow forces are discussed and models for relating force magnitudes to these parameters are suggested. The dynamic response of framed structures in an ocean environment has not been investigated except for linear sinusoidal wave motion in deep water conditions. The response of shallow water structures to various types of wave forces, as well as to earthquake excitation, has been analysed numerically here, taking into account the interaction between the structure and fluid motions. The effect of the mass and drag parameters on the structure response has been studied. Governing load cases for the design of framed structures have been related to structural period and water depth.
title: Child's Perception of Parental Attitude and Its Relationship to Academic Achievement and Problem Awareness
Creators: name: Fazel, Mohammed K.
Publisher: name: Utah State University
Year: 1968

description: This study was aimed at finding relationships between the triad of academic achievement, child's perception of parental attitude, and his problem awareness. The study was designed with reference to three postulates of phenomenological psychology. (a) The perceptual field of an individual at any moment determines his behavior of the moment. (b) The term phenomenal self is formed by the individual's interaction with others. (c) The basic need of the organism is the maintenance and actualization of the self.
A survey of the literature tended to support the thesis that there was a positive relationship between educational achievement and parental acceptance. On the other hand, research in this area also contained some evidence showing that parents of achieving children tended to adopt power assertive techniques of child rearing.
Sixty achievers and sixty underachievers of both sexes were administered the Father and Mother form of the Parent-Child Relationship Questionnaire and the Mooney Problem Check List and their relationships were noticed.
The results showed that the scales on the Mooney Problem Check List distinguished the underachieving and achieving boy but not the under achieving and achieving girl, except the School scale. The only scales which significantly differentiated the underachiever from the achiever for both boys and girls on both the forms were Punishment Direct-Object and Loving. The study did not reveal any significant relationship between the scales on the two forms of PCRQ and MPCL.
The magnetic fabric of surficial deep-sea sediments in the HEBBLE area (Nova Scotian continental rise)
Creators: name: Flood, Roger D.
name: Kent, Dennis V.
name: Shor, Alexander N.
name: Hall, Frank R.
Publisher: name: Columbia University
Year: 1985
Subjects: subject: Oceanography
subject: FOS: Earth and related environmental sciences
subject: Submarine geology

description: The anisotropy of magnetic susceptibility (AMS) of surficial sediments in the HEBBLE area (depth 4820 m, Nova Scotian continental rise) has been measured to study the fabric of these sediments and to relate the sediment fabric to depositional conditions. Previous investigators have established that strong but variable bottom currents are important agents in redistributing bottom sediments in the area. We observe that the upper 1.5 cm of the sediments has a primary fabric (dominantly foliar with horizontal bedding) created by bottom-current activity while sediments deeper than 2.5 cm have a predominantly secondary fabric due to bioturbation. The magnitude of the AMS signal in these sediments is generally low making it difficult to measure some of the fabric elements, especially the direction of the lineated fabric. In the upper 1.5 cm magnetic grains are predominantly oriented parallel to the regional bathymetric contours, but there is also a significant grouping of alignments perpendicular to the contours. Primary fabrics are observed in a few of the samples from the bioturbated sediments with the magnetic grains oriented parallel to the contours. Some of the variability observed between box cores in the magnetic fabric may reflect the variability of depositional conditions within the region. An analysis of the magnitude of the AMS fabric suggests that the parameter Fs, often used to denote bottom-current fabrics, is strongly dependent on the total anisotropy and only weakly dependent on the lineated nature of the fabric. Both primary and secondary fabrics can have relatively large Fs values. Thus Fs does not appear sufficient for delineating bottom current activity in the deep sea.
One-relator groups and proper 3-realizability
Creators: name: Cárdenas, M.
name: Lasheras, F. F.
name: Quintero, A.
name: Repovš, D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Geometric Topology (math.GT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 57M07; 57M10; 57M20

description: How different is the universal cover of a given finite 2-complex from a 3-manifold (from the proper homotopy viewpoint)? Regarding this question, we recall that a finitely presented group $G$ is said to be properly 3-realizable if there exists a compact 2-polyhedron $K$ with $π_1(K) \cong G$ whose universal cover $\tilde{K}$ has the proper homotopy type of a PL 3-manifold (with boundary). In this paper, we study the asymptotic behavior of finitely generated one-relator groups and show that those having finitely many ends are properly 3-realizable, by describing what the fundamental pro-group looks like, showing a property of one-relator groups which is stronger than the QSF property of Brick (from the proper homotopy viewpoint) and giving an alternative proof of the fact that one-relator groups are semistable at infinity.
title: The Effects of a Programed Text of Contingency Management Procedures on the Ability of Teachers to Write Behavioral Prescriptions
Creators: name: Morreau, Lanny E.
Publisher: name: Utah State University
Year: 1968

description: An informational source where teachers and teacher-candidates could gain a functional knowledge of contingency management techniques had not been developed. A programed text was written to provide this source. Five teachers and teacher-candidates were exposed to the text for a period of three days. As a result of this exposure, learning gains, significant at the 0.01 level, were found in the students' abilities (a) to write behavioral prescriptions and (b) to write the principles of contingency management when presented with open-ended questions pertaining to these principles.
Lateral Casimir forces on parallel plates and concentric cylinders with corugations
Creators: name: Cavero-Pelaez, Ines
name: Milton, Kimball A.
name: Parashar, Prachi
name: Shajesh, K. V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we are giving a quantitative description of two different configurations for noncontact gears. We consider the solutions from a perturbative calculation for two semitransparent parallel plates and concentric cylinders both with corrugations on the inner surfaces. In the case of corrugated parallel plates we discuss results from first- and second-order perturbation calculation in the corrugation amplitudes and we will concentrate on the first-order perturbation for the case of the corrugated concentric cylinders (the second order calculation is under study), both for the weak and strong couplings. We compare the perturbative results with the results from the PFA and an exact weak coupling calculation.
description: 15 pages. 60 Years of the Casimir effect. Brasilia, June 2008
Righting the Balance: Gender Diversity in the Geosciences
Creators: name: Bell, Robin E.
name: Kastens, Kim Anne
name: Cane, Mark A.
name: Balstad, Roberta G.
name: Mutter, John Colin
name: Pfirman, Stephanie L.
Publisher: name: Columbia University
Year: 2003
Subjects: Women in science
Earth sciences
Atmospheric physics
Marine sciences

description: The blatant barriers are down. Women are now routinely chief scientists on major cruises, lead field parties to all continents, and have risen to leadership positions in professional organizations, academic departments, and funding agencies. Nonetheless, barriers remain. Women continue to be under-represented in the Earth, ocean, and atmospheric sciences.
Consistent hydrodynamic description of one- and two-particle observables in relativistic heavy-ion collisions at RHIC
Creators: name: Florkowski, W.
name: Broniowski, W.
name: Chojnacki, M.
name: Kisiel, A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We show that a consistent hydrodynamic description of soft-hadronic one- and two-particle observables (the HBT radii) studied in the relativistic heavy-ion collisions at RHIC may be obtained if one uses the Gaussian energy density profile as the initial condition. The transverse-momentum spectra, the elliptic flow coefficient $v_2$, and the pionic azimuthally sensitive HBT radii are successfully reproduced, which hints that the long standing HBT puzzle has been solved.
description: Talk presented by WF at the IV Workshop on Particle Correlations and Femtoscopy, Krakow, Poland, Sept. 11 -- 14, 2008
title: An Examination of the Relationship of Oral Reading Fluency, Silent Reading Fluency, Reading Comprehension, and the Colorado State Reading Assessment
Creators: name: Bloomquist, Christy L.
Publisher: name: Utah State University
Year: 2017

description: This study evaluated how measures of oral reading fluency (ORF) and silent reading fluency (SRF) compare as predictors of reading comprehension and how these predictors vary as a function of proficiency level for fourth- and fifth-grade students. Additionally, the study sought to examine the relationship between measures of oral reading fluency, silent reading fluency, reading comprehension, and the Transitional Colorado Assessment Program (TCAP) with these students. Participants were 175 fourth- and fifth-grade students from two randomly selected schools in Colorado. A correlational predictive design was used. Results indicated that measures of ORF and SRF were predictors of reading comprehension and that the relationship of measures of ORF and SRF with comprehension changes over time. Regression analysis results indicated that 45.0% of the variance in reading comprehension was accounted for by the ORF measure for the sample population, as compared to 53.0% of the variance accounted for by SRF measures. Thus, measures of SRF might be a better predictor for maturing readers to determine reading proficiency, monitor student progress, and guide instructional practices.
A structural equation model (SEM) analyzed the relationship of the measure of SRF with reading comprehension as moderated by proficiency level. Analysis for the SRF measure by reading proficiency was conducted at the whole group level. The model accounted for 59.0% of the moderation. Results indicated that reading proficiency level and the SRF measure were both associated with reading comprehension. Reading proficiency level is a significant moderator of the relationship between measures of reading comprehension and SRF.
A SEM mediation model was used to analyze the relationship of measures of ORF, SRF, reading comprehension, and TCAP. The direct effects of the ORF and SRF measures on TCAP were both predictive with 66.0% of the variance accounted for with SRF measure and 66.5% of the variance accounted for with ORF measure.
Results indicated that as grade level increases, the relationship between measures of ORF, SRF, and reading comprehension changes. Additionally, SRF measures can be a viable alternative to ORF measures for upper elementary students as a predictor of reading comprehension and on the TCAP high-stake assessment.
Latitudinal dependency of geomagnetic polarity transition durations
Creators: name: Clement, Bradford M.
name: Kent, Dennis V.
Publisher: name: Columbia University
Year: 1984
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Palaeomagnetic records of the Matuyama-Brunhes polarity transition were obtained from seven, low sedimentation rate, deepsea cores from the Pacific Ocean. The cores were taken near the 180° meridian and provide a latitudinal transect of transition records extending from 45.3° N to 33.4° S. Examination of these records suggests that low sedimentation rate cores may not be capable of recording the fine details of transitional field behaviour, but there are indications that these cores may, in fact, provide accurate records of the more general features of the reversal. Most notable of these features is that the duration of the transition is dependent on the site latitude, with durations at mid-latitudes being more than a factor of 2 longer than at equatorial latitudes.
For the best of reasons : the Evandale Subscription Library 1847-1861
Creators: name: Adkins, KE
Publisher: name: University Of Tasmania
Year: 2023

description: This thesis is a study of books, libraries and reading in colonial Tasmania, conducted largely through an examination of the records of the Evandale Subscription Library in the period 1847 - 1861. The aims of this study are threefold. Firstly, it intends to show the foundations and traditions upon which the Evandale Subscription Library was established, emanating both from Britain and from within the colony. Founded as a penal colony, in 1803, within a generation Tasmania also became a destination for free British settlers seeking to improve their circumstances at the farthermost ou;post of the Empire. The decline of the Aboriginal population following the appropriation of their land, the latter's suitability for agriculture, and the availability of convict labour, left few impediments for settlers, beyond the isolation they experienced and the absence of sufficient means for intellectual recreation and practical enquiry. As a result, some of the earliest community-based libraries in the Australian colonies were established in Tasmania. Secondly, it aims to reveal the borrowing habits of library subscribers, from evidence of borrowing rather than from the incidence of bookselling, or merely from availability, given the evidence of library catalogues. The incidence of books and reading in emerging societies has long interested historians. Mostly such enquiry is hampered by the lack of hard data. For Tasmania, the fortuitous survival of the loans and borrowing register of the Evandale Subscription Library provides evidence of the books borrowed by library subscribers at a critical time in the colony's development, coinciding with the cessation of convict transportation and the emergence of representative government. This study also investigates the sharing of books and periodicals within the home or family unit, particularly by women. As a means of collating this data, to determine the borrowing habits of subscribers, an electronic database was constructed from the library's catalogue of books and loans register. Thirdly, this study aims to demonstrate the importance of the Evandale Subscription Library (and libraries, books and reading generally) in the lives of individuals in the colony, as a means of recreation, of self-improvement, of maintaining links with their homeland, and to the building of a civilised society, in the British model
title: Hydrocarbon and CO2 Emissions from Oil and Gas Production Well Pad Soils Comparative to Background Soil Emissions in Eastern Utah
Creators: name: Watkins, Cody S.
Publisher: name: Utah State University
Year: 2017

description: Emissions of methane, non-methane hydrocarbons (NMHC), and carbon dioxide (CO2) at 27 natural gas well pads, 11 non-well locations in oil and gas fields, and 7 hydrocarbon-bearing outcrops in eastern Utah between 2013 and 2016 were measured using a dynamic flux chamber (DFC) in effort to answer the following questions: What effect does the development of oil and gas have on the observed air quality (increased ozone, CO2, volatile organic compounds (VOCs), and/or methane emissions) in northeastern Utah? What percentage of these gases is due to natural background emissions, and what percentage is due to oil and gas development in the region? Methane emissions were the focus of this study, but emissions of other compounds were also measured to better understand the sources and characteristics of emissions. Background methane fluxes were all (mg) meter (m)-2 hour (h)-1. Methane emissions from well pad soils were commonly higher closer to the wellhead, though exceptions existed. Methane fluxes from well pad soils ranged from -5.6 to 70,000 mg m-2h-1. Based on analysis of NMHC emissions data, emissions from 68% of the sampled well pad soils were due to leaks of raw natural gas, whereas the remaining emissions were likely from a combination of raw gas leaks, liquid hydrocarbon spills, and/or methanogenic processes. CO2 emissions were higher than methane emissions 92% of the time at well sites, possibly due to CO2 in natural gas, and/or CO2 emitted from bacterial decomposition of soil organic matter and/or fossil hydrocarbons. Total combustible soil gas concentrations were measured at 21 wells. In summer 2015, soil properties were also analyzed to better understand well leakage. Wells categorized as shut-in had the highest average methane fluxes. Measured methane soil emissions were scaled-up for the entire Uinta Basin to estimate the overall emission from well pad soils, and to compare soil emissions with other natural gas-related sources. Producing and shut-in gas wells were estimated to emit 16.1 ± 4.3 and 8.6 ± 3.2 (90% confidence interval) t y-1 (tonne/year) of methane in the Uinta Basin, respectively, which is
Young stellar objects from soft to hard X-rays
Creators: name: Guedel, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Magnetically active stars are the sites of efficient particle acceleration and plasma heating, processes that have been studied in detail in the solar corona. Investigation of such processes in young stellar objects is much more challenging due to various absorption processes. There is, however, evidence for violent magnetic energy release in very young stellar objects. The impact on young stellar environments (e.g., circumstellar disk heating and ionization, operation of chemical networks, photoevaporation) may be substantial. Hard X-ray devices like those carried on Simbol-X will establish a basis for detailed studies of these processes.
description: Proc. "Simbol-X: Focusing on the Hard X-Ray Universe", Paris, 2-5 Dec. 2008, ed. J. Rodriguez and P. Ferrando, in press; 6 pages, 4 figures
Fear and Foraging on the Coral Reef
Creators: name: Malone, Margaret A
Publisher: name: University of Illinois at Chicago
Year: 2022
Subjects: Uncategorized

description: It’s a fish-eat-fish world! As a fish swims through lush coral gardens they must contend with the threat from predators patrolling open waters and those lurking in crevices of the reef, all while trying to find food for themselves. My dissertation research aims to understand the risks and rewards of life on the reef. My research begins in remote reefs, untouched by human impacts. In these pristine ecosystems, shark populations are often greater than their prey. I used ecological theory to understand how fish should behave when they are outnumbered by their big, fierce predators. Next, I put ecological theory into practice to understand how predation risk impacts the foraging behavior of a coral reef fish. I developed an experimental food patch, the krill burrito, and validated its use to measure giving-up densities of a common Hawaiian fish, the saddle wrasse (hīnālea lauwili, Thalassoma duperrey). I observed saddle wrasse behaviors as they foraged across Hawaiian reefs and from remote video at experimental food patches. I found behavior at the krill burrito reflects those of wrasse foraging from rich and transient resources. Unfortunately, reefs worldwide are facing threats from multiple stressors, resulting in habitat degradation. Therefore, I investigated how habitat degradation influences a fish’s perceived risk on reefs. Finally, I investigated wrasses as predators themselves using biological collections. The results from each of these dissertation chapters advances coral reef conservation, the appreciation for food-safety tradeoffs, and direct knowledge of the feeding behaviors and morphologies of an important group of reef fishes.
Additional file 4 of Identification of the cuproptosis-related molecular subtypes and an immunotherapy prognostic model in hepatocellular carcinoma
Creators: name: Zhang, Li
name: Xu, Jingwei
name: Chu, Xiufeng
name: Zhang, Hongqiao
name: Yao, Xueyuan
name: Zhang, Jian
name: Guo, Yanwei
Publisher: name: figshare
Year: 2022
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file4. Table S2: Clinical features of the three subtypes derived from consensus clustering.
On Verification of the Non-Generational Conjectural- Derivation of First Class constraints: HP Monopole's Field case
Creators: name: Qandalji, K. Rasem
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In [7] we proposed a non-generational conjectural derivation of all first class constraints (involving, only, variables compatible with canonical Poisson brackets) for realistic gauge (singular) field theories; and we verified the conjecture in cases of electromagnetic field, Yang Mills fields interacting with scalar and spinor fields, and the gravitational field. Here we will further verify our conjecture for the case of 't Hooft- Polyakov (HP) monopole's field (i.e. in the Higgs Vacuum); and show that we will reproduce the results in Ref.[6], which we reached at using Dirac's standard multi-generational algorithm.
Straight-line realization of planar graphs.
Creators: name: Shiau, Luang-Hung
Publisher: name: University of British Columbia
Year: 2011

description: Few theorems are known about planar graphs. For, example, Kuratowski proved that a graph is planar if and only if it has no subgraph homeomorphic to K₅ or K₃,₃. It has remained as a direct criterion for determining whether a graph is planar or not. Powerful as the theorem is, it is not always easy to apply. This leads us to try some practical methods to test a planar graph. In this thesis, we have an algorithm for finding an outer circuit for a simple connected planar graph. Then, we use this outer circuit to draw a straight line graph in the plane. The programme for this algorithm is written in FORTRAN for an IBM 360/67 Computer.
Geomagnetic Polarity Transition Records from Five Hydraulic Piston Core Sites in the North Atlantic
Creators: name: Clement, Bradford M.
name: Kent, Dennis V.
Publisher: name: Columbia University
Year: 1987
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences

description: Eleven geomagnetic polarity transition records from five hydraulic piston core sites in the North Atlantic are presented. The Matuyama-Brunhes reversal was sampled at five sites and the upper and lower Jaramillo and upper Olduvai transitions were each sampled at two sites. The wet sediment was sampled by taking U-channel samples across the reversals, as defined by conventional shipboard magnetostratigraphic studies. The U-channel samples were subsampled on shore by taking successive 0.5-cm-thick slices of the sediment. The amount of detail contained in the records of these transitions is not always directly related to sedimentation rate. In seven out of eleven transitions, detailed sampling of cores deposited at moderate to high sedimentation rates (30-50 m/m.y.) failed to produce detailed transition records. The lack of intermediate directions demonstrated to be carried by single-component magnetizations indicates that these sections do not contain accurate records of transitional field behavior. The four transitions sampled from Hole 609B (82.5 m/m.y.), however, exhibit intermediate directions that are carried by univectorial magnetizations. A progression of directions through these reversals is also observed. These records therefore satisfy the basic criteria required to allow this interpretation in terms of geomagnetic field behavior. Data from these mid-northern latitude transitions place additional constraints on existing transitional field models of the Matuyama-Brunhes reversal. The lower Jaramillo and upper Olduvai transitions obtained in this study are compared with records of these same reversals at a midsouthern latitude site. Comparison of these transitions reveals symmetries that are dependent upon the sense of the reversal with respect to the hemisphere on which the site is located. These symmetries are predicted by two different transitional field models in which an axisymmetric quadrupole term is dominant.
Particle Swarm Optimization and gravitational wave data analysis: Performance on a binary inspiral testbed
Creators: name: Wang, Yan
name: Mohanty, Soumya D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: The detection and estimation of gravitational wave (GW) signals belonging to a parameterized family of waveforms requires, in general, the numerical maximization of a data-dependent function of the signal parameters. Due to noise in the data, the function to be maximized is often highly multi-modal with numerous local maxima. Searching for the global maximum then becomes computationally expensive, which in turn can limit the scientific scope of the search. Stochastic optimization is one possible approach to reducing computational costs in such applications. We report results from a first investigation of the Particle Swarm Optimization (PSO) method in this context. The method is applied to a testbed motivated by the problem of detection and estimation of a binary inspiral signal. Our results show that PSO works well in the presence of high multi-modality, making it a viable candidate method for further applications in GW data analysis.
description: 13 pages, 5 figures
Atmospheric circulation anomalies during two persistent north american droughts: 1932-1939 and 1948-1957
Creators: name: Cook, Benjamin I.
name: Seager, Richard
name: Miller, Ronald L.
Publisher: name: Columbia University
Year: 2011
Subjects: Droughts
Climatology
Atmospheric circulation

description: We use an early twentieth century (1908-1958) atmospheric reanalysis, based on assimilation of surface and sea level pressure observations, to contrast atmospheric circulation during two periods of persistent drought in North America: 1932-1939 (the 'Dust Bowl') and 1948-1957. Primary forcing for both droughts is believed to come from anomalous sea surface temperatures (SSTs): a warm Atlantic and a cool eastern tropical Pacific. For boreal winter (October-March) in the 1950s, a stationary wave pattern originating from the tropical Pacific is present, with positive centers over the north Pacific and north Atlantic ocean basins and a negative center positioned over northwest North America and the tropical/subtropical Pacific. This wave train is largely absent for the 1930s drought; boreal winter height anomalies are organized much more zonally, with positive heights extending across northern North America. For boreal summer (April-September) during the 1930s, a strong upper level ridge is centered over the Great Plains; this feature is absent during the 1950s and appears to be linked to a weakening of the Great Plains low-level jet (GPLLJ). Subsidence anomalies are co-located over the centers of each drought: in the central Great Plains for the 1930s and in a band extending from the southwest to the southeastern United States for the 1950s. The location and intensity of this subsidence during the 1948-1957 drought is a typical response to a cold eastern tropical Pacific, but for 1932-1939 deviates in terms of the expected intensity, location, and spatial extent. Overall, circulation anomalies during the 1950s drought appear consistent with the expected response to the observed SST forcing. This is not the case for the 1930s, implying some other causal factor may be needed to explain the Dust Bowl drought anomalies. In addition to SST forcing, the 1930s were also characterized by massive alterations to the land surface, including regional-scale devegetation from crop failures and intensive wind erosion and dust storms. Incorporation of these land surface factors into a general circulation model greatly improves the simulation of precipitation and subsidence anomalies during this drought, relative to simulations with SST forcing alone. Even with additional forcing from the land surface, however, the model still has difficulty reproducing some of the other circulation anomalies, including weakening of the GPLLJ and strengthening of the upper level ridge during AMJJAS. This may be due to either weaknesses in the model or uncertainties in the boundary condition estimates. Still, analysis of the circulation anomalies supports the conclusion of an earlier paper (Cook et al. in Proc Natl Acad Sci 106:4997, 2009), demonstrating that land degradation factors are consistent with the anomalous nature of the Dust Bowl drought.