cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Development of a Management Plan for Grey Goral: Lessons from Blackbuck and Cheer Pheasant Reintroduction Attempts
Creators: name: Anwar, Maqsood
Publisher: name: Utah State University
Year: 1989

description: A study of grey goral (Nemorhaedus goral) in the Margalla Hills National Park, Pakistan, was conducted to develop a management plan for this animal. Goral are listed as endangered in Pakistan and elsewhere. They are confined to the steep slopes and difficult terrain that cover 28 percent of the total park area. Another 21 percent of the park area has similar habitat, but currently no goral occur there. Forty to 60 animals are estimated to be living in the park. Groups of two to three animals are common. During observation, goral spent most of their time in feeding, moving, and surveillance . Juveniles spent less time in surveillance and more in resting and ruminating than the adults. Group size was inversely correlated with the time
spent in surveillance. Goral foraged early in the morning and late in the evening and were rarely seen during the day. They changed their foraging activities from browsing during the winter to almost entirely grazing during the summer. The rutting period extended from October to December and the lambing period from March to May. Goral populations in the park were estimated to be increasing at a rate of 7 percent annually . They always escaped to a nearby ridge when danger was perceived. Adults and juveniles had dominant and subordinate interactions.
In goral habitat, about 60 percent of the vegetation consists of plant species commonly eaten by the animals. These species include Themeda anathera, Chrysopogon aucheri, Carissa opaca, Acacia modesta, Mimosa rubicaulis, and Ipomoea hispida. Human and livestock populations differ significantly inside and outside goral habitat in the park. Lack of suitable habitat, predation, poaching, and human and livestock pressures affect the goral population and its range in the park.
Reintroduction plans for blackbuck (Antilope cervicapra) and cheer pheasant (Catreus vallichii) were analyzed to determine the commonalities: source of animals, poaching, predation, and insufficient staff and funds. A goral management plan based on my field studies and the analysis of the other reintroduction plans are discussed. A general wildlife management strategy for Pakistan is discussed. The government should have a well-defined policy about wildlife and park management. Habitat remains the critical factor. Strong legislation, well-educated and well-equipped staff, and proper funding are required for this purpose. In addition, education and economic development of the public, especially those living in and around parks, are essential.
Robust charge-density wave correlations in the electron-doped single-band Hubbard model
Creators: name: Mai, Peizhi
name: Nichols, Nathan S.
name: Karakuzu, Seher
name: Bao, Feng
name: Del Maestro, Adrian
name: Maier, Thomas A.
name: Johnston, Steven
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: There is growing evidence that the hole-doped single-band Hubbard and $t$-$J$ models do not have a superconducting ground state reflective of the high-temperature cuprate superconductors but instead have striped spin- and charge-ordered ground states. Nevertheless, it is proposed that these models may still provide an effective low-energy model for electron-doped materials. Here we study the finite temperature spin and charge correlations in the electron-doped Hubbard model using quantum Monte Carlo dynamical cluster approximation calculations and contrast their behavior with those found on the hole-doped side of the phase diagram. We find evidence for a charge modulation with both checkerboard and unidirectional components decoupled from any spin-density modulations. These correlations are inconsistent with a weak-coupling description based on Fermi surface nesting, and their doping dependence agrees qualitatively with resonant inelastic x-ray scattering measurements. Our results provide evidence that the single-band Hubbard model describes the electron-doped cuprates.
Spectral Characteristics and Quantitative Analysis of Troxerutin-Cu2+ Complex
Creators: name: LIN Yu
name: LIANG Liujun
name: LIU Wen
name: PAN Zhenzhen
name: XIE Fengfeng
name: LIN Yu
name: LIANG Liujun
name: LIU Wen
name: PAN Zhenzhen
name: XIE Fengfeng
Publisher: name: Unknown
Year: 2020
Subjects: subject: Agribusiness
subject: UV-visible spectrophotometry, Troxerutin, Content determination

description: [Objectives] This study aims to establish a simple, convenient, fast, low-cost, low-consumption and efficient method for quality control of troxerutin. [Methods] In NaAc-phosphate buffer at pH = 8, troxerutin could react with Cu2+ to form complex, which had a characteristic absorption peak at 408 nm in the ultraviolet spectrum. The content of troxerutin could be determined indirectly by measuring the absorbance of the complex. [Results] Within the linear range of 27.82 - 74.19 μg/mL, the absorbance of the complex has a good linear relationship with the concentration of troxerutin. The regression equation is A=0.011 9 C - 0. 138 4 (r = 0.999 1), and the detection limit is 1.59 μg/mL. This method is used to determine the content of troxerutin in samples from different manufacturers, and the recovery is 100.9%-102.7%. [Conclusions] The ultraviolet spectrophotometry is used in this experiment to indirectly determine the content of troxerutin by measuring the absorbance of troxerutin-Cu2+ complex, and the results are accurate, reproducible and highly precise. This method can be used for quantitative analysis of troxerutin.
Kondo-Cluster-Glass State near a Ferromagnetic Quantum Phase Transition
Creators: name: Westerkamp, T.
name: Deppe, M.
name: Kuechler, R.
name: Brando, M.
name: Geibel, C.
name: Gegenwart, P.
name: Pikul, A. P.
name: Steglich, F.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report on a comprehensive study of CePd$_{1-x}$Rh$_x$ $(0.6 \leq x \leq 0.95)$ poly- and single crystals close to the ferromagnetic instability by means of low-temperature ac susceptibility, magnetization and volume thermal expansion. The signature of ferromagnetism in this heavy-fermion system can be traced from 6.6 K in CePd down to 25 mK for $x=0.87$. Despite pronounced non-Fermi-liquid (NFL) effects in both, specific heat and thermal expansion, the Grüneisen ratio {\it does not} diverge as $T\to 0$, providing evidence for the absence of a quantum critical point. Instead, a peculiar "Kondo-cluster-glass" state is found for $x\geq 0.65$, and the NFL effects in the specific heat, ac susceptibility and magnetization are compatible with the quantum Griffiths phase scenario.
description: 4 pages, 4 figures
title: Effects of Drought on the Survival of Rhizobium leguminosarum Biovar trifolii and the Nodulation of Subterranean Clover in an Acid Soil
Creators: name: Bueno, Carmen
Publisher: name: Utah State University
Year: 1987

description: Twenty-nine Rhizobium leguminosarum biovar trifolii strains were tested for acidity tolerance in acidified liquid medium. Only 41\ of the strains grew at pH 4.1. One acid-tolerant strain, USDA 2160, and one acid-sensitive strain, 162-X-103 from Nitragin Co., were inoculated on seeds of 'Nungarin', 'Seaton Park' and 'Clare' subclover cultivars. The inoculated and pelleted seeds were sown in potted Cluff soil with pH 5. 7. Three desiccation levels were imposed by delaying watering for 0, 15 or 30 days. Four gravimetric soil water contents (6.0, 6.6, 10.5 and 12.5\) were maintained under a greenhouse line-source sprinkler system for 7 weeks. The desiccation treatments
were more detrimental to the survival of the acid-tolerant Rhizobium strain (USDA 2160) than they were for the acid sensitive strain (162-X-103). Symbiotic effectiveness, measured as shoot dry weight, was higher with strain 162-X- 103 than with strain USDA 2160 and was comparable to the Nfertilized control at the highest water level (12.5 %). At the lower water levels (6.0, 6.6 %) symbiotic N2-fixation was more affected than N-uptake. The Rhizobium strains were able to survive and grow even at the lowest soil water level. The number of rhizobia in the soil and nodulation of the subclover plants had a correlation of 0.56.
Learning to Compute the Articulatory Representations of Speech with the MIRRORNET
Creators: name: Siriwardena, Yashish M.
name: Espy-Wilson, Carol
name: Shamma, Shihab
Publisher: name: arXiv
Year: 2022
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Most organisms including humans function by coordinating and integrating sensory signals with motor actions to survive and accomplish desired tasks. Learning these complex sensorimotor mappings proceeds simultaneously and often in an unsupervised or semi-supervised fashion. An autoencoder architecture (MirrorNet) inspired by this sensorimotor learning paradigm is explored in this work to control an articulatory synthesizer, with minimal exposure to ground-truth articulatory data. The articulatory synthesizer takes as input a set of six vocal Tract Variables (TVs) and source features (voicing indicators and pitch) and is able to synthesize continuous speech for unseen speakers. We show that the MirrorNet, once initialized (with ~30 mins of articulatory data) and further trained in unsupervised fashion (`learning phase'), can learn meaningful articulatory representations with comparable accuracy to articulatory speech-inversion systems trained in a completely supervised fashion.
description: Interspeech 2023
The Practical Significance of Marx's Theory of Natural Force Resources
Creators: name: ZHU Jiefang
name: ZHU Jiefang
Publisher: name: Unknown
Year: 2020
Subjects: subject: Agribusiness
subject: Marx, Theory of natural force resource, Practical significance

description: Marx's theory of natural force resources is an indispensable part of Marx's economic theory. Natural force resources, as a kind of natural elements that do not cost a penny, are added to the production process free of charge, and play a special role in the production process. Grasping and understanding the scientific connotation of Marx's theory of natural force resources is of great theoretical value and practical significance for promoting the harmonious unity of man and nature and adhering to the strategy of sustainable economic development.
An adaptive damped Newton method for strongly monotone and Lipschitz continuous operator equations
Creators: name: Heid, Pascal
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We will consider the damped Newton method for strongly monotone and Lipschitz continuous operator equations in a variational setting. We will provide a very accessible justification why the undamped Newton method performs better than its damped counterparts in a vicinity of a solution. Moreover, in the given setting, an adaptive step-size strategy will be presented, which guarantees the global convergence and favours an undamped update if admissible.
title: Seed Case Studies on Atriplex Gardneri (MOQ) Dietr.: Bracteole Cell Wall Composition and Enzymatic Degradation
Creators: name: Burton, Priscilla Woolley
Publisher: name: Utah State University
Year: 1982

description: Clarification of the bracteole restraint on germination and the development of an improved seed pre-treatment were the objectives of this study. Bracteole cell walls were isolated and hydrolyzed with 72% sulfuric acid followed by dilution and further hydrolysis. Individual monosaccharide yields were monitored with gas chromaixtography and colorimetry. Lignin was determined as the acid insoluble residue . Cell wall composition on a dry weight basis was 17.0% lignin, 32 . 75% glucose, 28.77% xylose, 7.21% arabinose, 1.11% galactose and 0.35% mannose. Linear xylans and glucans represent a large portion of the cell wall . The quantity of lignified tissue is extraordinarily large, resulting in a rigid, impermeable seed case.
Bracteole cell walls were delignified with acid chlorite. A comparison of enzyme catalyzed hydrolysis of the untreated cell walls with delignified cell walls followed. Three commercial enzyme preparations were incubated with the samples separately and in combination treatments: cellulase (EC 3 . 2. 1.4) from Trichoderma viride supplemented with B- D-glucosidase (EC 3.2.1.21); crude-hemicellulase from Aspergillus niger; polygalacturonase (EC 3.2.1.15) from Aspergillus niger. The production of reducing groups was monitored. Enzyme catalyzed hydr olysis of lignified cell walls was limited: cellulase followed by polygalacturonase degraded 14.1% of the lignified cell wall, all other treatments yielded less than 10% degradation. Dramatic improvements in the activity of all enzymes was noted after delignification. Cellulase activity increased to 35%, hemicellulase to 25%, and polygalacturonase to 36% hydrolysis of the sample.
Intact seeds were subjected to delignification with acid chlorite at 35 degrees. Of these seeds, half were treated with cellulase, supplemented as before . The germination percentages of delignified and delignified/enzyme treated seeds were compared with other common germination pre-treatments. Four hundred seeds of each treatment were sown in soil and allowed to germinate with 20 degree days and 15 degree nights. The thirty minute delignification left the seed viable, but still lignified: only 3% germinated as compared with 28.0% for physically scarified seeds, 6% for acid treated seeds, 5.5% for surface sterilized seeds, and 4.0% for cold water leached seeds. Physical scarification proved to be the easiest method of pre-treatment.
Value distribution of the hyperbolic Gauss maps for flat fronts in hyperbolic three-space
Creators: name: Kawakami, Yu
Publisher: name: arXiv
Year: 2009
Subjects: subject: Differential Geometry (math.DG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 53A10 (Primary), 30D35, 53A35, 53C42. (Secondary)

description: We give an effective estimate for the totally ramified value number of the hyperbolic Gauss maps of complete flat fronts in the hyperbolic three-space. As a corollary, we give the upper bound of the number of exceptional values of them for some topological cases. Moreover, we obtain some new examples for this class.
description: 14 pages, to appear in Houston Journal of Mathematics
title: Fertility and Saline Water Management Interactions on Plant Growth and Nitrogen Fixation in Phaseolus
Creators: name: Rodriguez, Robin R. Drysdale
Publisher: name: Utah State University
Year: 1981

description: A greenhouse study was conducted involving interactive effects on bean yield of three levels of irrigation water salinity, three frequencies of irrigation water app li cation, two level s of nitrogen, and seven levels of phosphorus fertilization to determine if the effects of adverse saline conditions or water stress could be overcome by fertility and / or saline water management.
Dry matter and bean yields were reduced with decreasing irrigation frequency (2 days to B days} and increasing salinity of irrigation water (0.5 mmho/cm to 8.0 mmho/cm). At low salinity levels (0 .5 mmho/cm) dry matter production and the number of pods per pot were increased with the addition of nitrogen in the irrigation water (at the rate of 112 kg N/ha). The application of banded fertilizer phosphorus helped beans overcome the effects of saline conditions and water stress and resulted in increased yield. The application of liquid 10-34-0 fertilizer produced a statistically significant increase in all yield parameters at every level of salinity, and every irrigation frequency studied. Nitrogen fixation was found to decrease as irrigation water salinity increased. The application of 0-50-40 as a fertilizer band treatment increased nitrogen fixation in t he presence of added nitrogen, due probably to the presence of potassium.
SHATTERED PROMISES: THE ETHICS OF BREAKING DONOR RESTRICTIONS
Creators: name: Campbell, M. Rebecca
Publisher: name: American University
Year: 2023

description: This paper explores the existing issues surrounding acceptance of restricted gifts and discusses the ethics and ramifications for breaking donor stipulations. Starting with the historical context of why museums need donors, it follows the history of gifts to art museums in America. It then studies the implications that breaking agreements can have on the organizations. Using case studies and examples from twentieth and twenty-first centuries, the ethics are approached from situations such as the safety and accessibility of the art, the mission of the organization and the survival of the museum.
Optimization for Dissemination Factors of Core Socialist Values in the Process of Citizenization of Migrant Workers
Creators: name: HE Yun
name: HE Yun
Publisher: name: Unknown
Year: 2020
Subjects: subject: Agribusiness
subject: Citizenization of migrant workers, Core socialist values, Optimization for dissemination factors

description: With the implementation of the national "urbanization" strategy, the citizenization of migrant workers has become an important part of China's urbanization process. The citizenization of migrant workers not only relies on the institutional reform to promote the exogenous citizenization, but also depends on the dissemination and cultivation of core socialism values, and it transforms traditional migrant workers into real urban citizens. Therefore, it is particularly urgent to strengthen the dissemination of core socialist values to the migrant workers, and it is necessary to systematically optimize the four elements of dissemination subject, dissemination object, dissemination medium and dissemination environment.
Response to the depression : three representative women's groups in British Columbia
Creators: name: Powell, Mary Patricia
Publisher: name: University of British Columbia
Year: 2011

description: The aim of this thesis was to investigate the response of representative women in British Columbia to the Depression in Canada during the 1930's. Canadian women had had the vote for only eleven years before the economic crash in 1929. The crisis of the Depression provided an opportunity for women to use their new found political power to effect much needed reforms in the social and economic system. Women had argued that they were especially interested in the sphere of social reforms and welfare and that their vote would ensure the passage of many social reforms. During the 1920's, women in British Columbia did indeed help to secure the passage of many reforms. The Depression, however, was by far the most serious crisis faced by the enfranchised women. Three women's groups were investigated as representative of British Columbia women. These three organizations were chosen for their character and interest in social welfare. The Local Council of Women of Vancouver was not only the local branch of the most important women's group in Canada, but it also attempted, through its numerous affiliated societies, to speak for women as a whole. The Y.W.C.A. was the largest and most important women's organization specifically concerned with welfare work. The B.C. Conference Branch of the Woman's Missionary Society of the largest Protestant denomination in Vancouver, the United Church, was also interested in social welfare through its home Mission work. The major sources of information were the respective Minute Books of each group. This source was supplemented by histories of each organization; newspapers and journal articles, particularly on the work of women during the Depression; and various printed material on aspects of the Depression. The conclusion reached in the thesis was that the women of the three groups investigated did not rise to the challenge of the Depression by proposing or endorsing any important reforms or by seriously questioning the social and economic system which had produced the Depression. Although examination of other groups would be necessary to warrant broader generalization, the evidence here presented indicates that the hopes of those who believed that women as a group would prove to be a distinctive and compelling force in social and political life were not justified by the experience of the depression decade in British Columbia.
A Machine Learning Tutorial for Operational Meteorology, Part II: Neural Networks and Deep Learning
Creators: name: Chase, Randy J.
name: Harrison, David R.
name: Lackmann, Gary
name: McGovern, Amy
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Over the past decade the use of machine learning in meteorology has grown rapidly. Specifically neural networks and deep learning have been used at an unprecedented rate. In order to fill the dearth of resources covering neural networks with a meteorological lens, this paper discusses machine learning methods in a plain language format that is targeted for the operational meteorological community. This is the second paper in a pair that aim to serve as a machine learning resource for meteorologists. While the first paper focused on traditional machine learning methods (e.g., random forest), here a broad spectrum of neural networks and deep learning methods are discussed. Specifically this paper covers perceptrons, artificial neural networks, convolutional neural networks and U-networks. Like the part 1 paper, this manuscript discusses the terms associated with neural networks and their training. Then the manuscript provides some intuition behind every method and concludes by showing each method used in a meteorological example of diagnosing thunderstorms from satellite images (e.g., lightning flashes). This paper is accompanied with an open-source code repository to allow readers to explore neural networks using either the dataset provided (which is used in the paper) or as a template for alternate datasets.
Q-ball Scattering on Barriers and Holes in 1 and 2 Spatial Dimensions
Creators: name: Al-Alawi, Jassem H.
name: Zakrzewski, Wojtek J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We discuss various scattering properties of non-topological solitons, Q-balls, on potential obstructions in (1+1) and (2+1) dimensions. These obstructions, barriers and holes, are inserted into the potential of the theory via the coupling parameter, ie \tildeλ, that is effective only in a certain region of space. When \tildeλ> 1 the obstruction is a barrier and when 0 < \tildeλ< 1 the obstruction is a hole. The dynamics of Q-balls on such obstructions in (1+1) dimensions is shown to be very similar to that of topological solitons provided that the Q-balls are stable. In (2+1) dimensions, numerical simulations have shown some differences from the dynamics of topological solitons. We discuss these differences in some detail.
description: 26 pages, 22 figures
title: Job Competencies, Employment Demands, and Perceived Training Needs in Production Agriculture in Utah
Creators: name: Summers, James O.
Publisher: name: Utah State University
Year: 1980

description: Th is study was limited to 165 farmers involved in various segments of production agriculture in the state of Utah. County agents and vocational agriculture teachers in each county nominated these farmers as candidates according to their respective farming operations.
The following six defined areas of production agriculture were used as selection criteria to insure equal input in the study: Beef, Dairy, Swine , Sheep, Poultry, and Crops. All farmers were surveyed by means of persona l interviews conducted by either county agents or vocational agriculture instructors in their respective counties. The surveying instrument used was developed through a thorough review of the National Agricultural Competency Study list of skill quest ions. Farmers were asked to rank on a likert-type scale, the importance each skill had on their operation. Farmers· were also asked to reply yes or no to whether or not they needed additional training in each skill area. Eleven categories of competencies were-used in the study in an attempt to highlight all areas of production agriculture. Data were compiled and a Burroughs 6700 computer was utilized for program evaluation to find means, rankings, ranges, and frequencies.
A review of the study revealed that:
1. Over one- third of all farmers surveyed terminated their formal education after high school . This places a great deal of emphasis on high school agriculture curriculum as well as adult education programs.
2. Many areas of production agriculture have overlapping areas of skills and competencies.
3. There is a commonality of competencies needed by all those entering the production agriculture industry.
4. Areas of anima l health, equipment maintenance, soil preparation, and planting as well as legal practices and safety precautions, all placed very high in ranks of importance throughout the study.
5. Most employment figures are projected to remain relatively constant with a 10% or less fluctuation projected over a five-year period. The only exception is that of part-time non-family employees which shows a decrease of 18%.
6. One-hundred-ten of the one-hundred- fourteen competencies surveyed in the study were considered to be of some importance to the agriculture industry.
Discussion on the Performance Evaluation Index System of Basic Course Teaching Team in Colleges and Universities
Creators: name: FANG Hong
name: FANG Hong
Publisher: name: Unknown
Year: 2020
Subjects: subject: Agribusiness
subject: Basic courses, Teaching team, Performance evaluation

description: Teaching team plays an important role in integrating teaching resources, improving the quality of teachers and the quality of education and teaching. This paper studies the characteristics of the basic course teaching team, and gives the principles of building the basic course teaching team performance evaluation index system and the specific performance evaluation index system, in order to provide a direction for the high-level construction of the teaching team.
The Redshift Evolution of the Mass Function of Cold Gas in Hierarchical Galaxy Formation Models
Creators: name: Power, C.
name: Baugh, C. M.
name: Lacey, C. G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: (Abridged) Accurately predicting how the cosmic abundance of neutral hydrogen evolves with redshift is a challenging problem facing modellers of galaxy formation. We investigate the predictions of four currently favoured semi-analytical galaxy formation models applied to the Millennium simulation for the mass function of cold neutral gas (atomic and molecular) in galaxies as a function of redshift, and we use these predictions to construct number counts for the next generation of all-sky neutral atomic hydrogen (HI) surveys. Despite the different implementations of the physical ingredients of galaxy formation, we find that the model predictions are broadly consistent with one another; the key differences reflect how the models treat AGN feedback and how the timescale for star formation evolves with redshift. The models produce mass functions of cold gas in galaxies that are generally in good agreement with HI surveys at $z$=0. Interestingly we find that these mass functions do not evolve significantly with redshift. Adopting a simple conversion factor for cold gas mass to HI mass that we apply to all galaxies at all redshifts, we derive mass functions of HI in galaxies from the predicted mass functions of cold gas, which we use to predict the number counts of sources likely to be detected by HI surveys on next generation radio telescopes such as the Square Kilometre Array and its pathfinders. We show also how adopting a conversion factor for cold gas mass to HI mass that varies from galaxy to galaxy impacts on number counts. In addition, we examine how the typical angular sizes of galaxies vary with redshift. Taken together, these results make clear that forthcoming HI surveys will provide important and powerful tests of theoretical galaxy formation models.
description: 19 pages, 10 figures, accepted for publication in MNRAS. Version contains a number of substantial changes, including a detailed investigation of how the conversion from cold gas mass to HI mass impacts on the number counts of HI sources
SHATTERED PROMISES: THE ETHICS OF BREAKING DONOR RESTRICTIONS
Creators: name: Campbell, M. Rebecca
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 4302
subject: Heritage, archive and museum studies

description: This paper explores the existing issues surrounding acceptance of restricted gifts and discusses the ethics and ramifications for breaking donor stipulations. Starting with the historical context of why museums need donors, it follows the history of gifts to art museums in America. It then studies the implications that breaking agreements can have on the organizations. Using case studies and examples from twentieth and twenty-first centuries, the ethics are approached from situations such as the safety and accessibility of the art, the mission of the organization and the survival of the museum.
Viscous attenuation of gravitational waves propagating through an inhomogeneous background
Creators: name: Pandey, Shashank Shekhar
name: Sarkar, Arnab
name: Ali, Amna
name: Majumdar, A. S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We consider the propagation of gravitational waves in the late-time Universe in the presence of matter distribution inhomogeneities, and we also consider the cosmic fluid to be viscous. In this work, we investigate the cumulative effect of inhomogeneities and viscosity of the cosmic-fluid on the observables associated with the sources of the gravitational waves. Employing Buchert's averaging procedure in the backreaction framework, we consider a model of spacetime in which matter is distributed in-homogeneously across space. Using the modified redshift versus distance relation, through the averaging process in the context of the model, we study the variation of the redshift-dependent part of the observed gravitational wave amplitude for different combinations of our model parameters while simultaneously considering damping of the gravitational wave amplitude due to viscosity of the cosmic-fluid. Then, we investigate the differences occurring in the variation of the redshift-dependent part of the observed gravitational wave amplitude due to consideration of viscous attenuation. We show that there are significant deviations after the inclusion of viscous attenuation in our analysis, depending on the chosen value of the coefficient of viscosity. Our result signifies the importance of the effect of viscosity, within the model of an inhomogeneous Universe, on precision measurements of parameters of compact-binary sources of gravitational waves.
description: 15 pages, 5 figures
MWCNT induced negative real permittivity in a copolyester of Bisphenol-A with terephthalic and isophthalic acids
Creators: name: Özdemir, Zeynep Güven
name: Daşdan, Dolunay Şakar
name: Kavak, Pelin
name: Pionteck, Jürgen
name: Pötschke, Petra
name: Voit, Brigitte
name: SüngüMısırlıoğlu, Banu
Publisher: name: Bristol : IOP Publ.
Year: 2020
Subjects: subject: Composite
subject: Copolymers
subject: Dielectric properties
subject: Nanotubes
subject: 620

description: In the present study, the negative real permittivity behavior of a copolyester of bisphenol-A with terephthalic acid and isophthalic acid (PAr) containing 1.5 to 7.5 wt% multi-walled carbon nanotubes (MWCNTs) have been investigated in detail. The structural and morphological analysis of the melt-mixed composites was performed by Fourier transform infrared spectroscopy using attenuated total reflection (FTIR-ATR), atomic force microscopy (AFM), X-ray diffraction (XRD), and light microscopy. The influences of the MWCNT filler on the AC impedance, complex permittivity, and AC conductivity of the PAr polymer matrix were investigated at different operating temperatures varied between 296 K and 373 K. The transition from a negative to positive real permittivity was observed at different crossover frequencies depending on the MWCNT content of the composites whereas pure PAr showed positive values at all frequencies. The negative real permittivity characteristic of the composites was discussed in the context of Drude model. © 2020 The Author(s). Published by IOP Publishing Ltd.
title: Habitat Use by Breeding Waterfowl of Several Utah Marshes
Creators: name: Suchanek, Paul M.
Publisher: name: Utah State University
Year: 1980

description: Habitat use by waterfowl (breeding pairs and broods) of several Utah marshes was studied during 1978 and 1979. A number of ponds found on 5 different marshes located near Great Salt Lake were studied. Perimeter, area, depth, and emergent vegetative type were measured on each pond. Waterfowl use of the ponds was determined using a fixed point observation system. Multiple regression was used to analyze the relationships between the measured habitat variables and waterfowl use.
Area of the pond was the variable most strongly related to both pair and brood use. Perimeter was highly correlated to area, but a calculated edge index reduced the confounding between the two variables. The edge index was positively related to pair use by 3 species of waterfowl and to total brood use, but it explained relatively little of the total variation in waterfowl use. Pond depth had little effect on duck use, but the type of emergent edge often had a significant effect on both pair and brood use. Waterfowl use of the ponds differed slightly between marshes.
The multiple regressions explained from 53 to 79 percent of the variation in pair use by species. From 31 to 77 percent of the variation in brood use by group or species was explained. The 1978 data were used to validate the regression models developed with the 1979 data.
Biomaterials based on noncovalent interactions of small molecules
Creators: name: Guo, Jiaqi
name: Tian, Changhao
name: Xu, Bing
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund
Year: 2020
Subjects: noncovalent interactions
supramolecular biomaterials
self-assembly
enzymes
application

description: Unlike conventional materials that covalent bonds connecting atoms as the major force to hold the materials together, supramolecular biomaterials rely on noncovalent intermolecular interactions to assemble. The reversibility and biocompatibility of supramolecular biomaterials render them with diverse range of functions and lead to rapid development in the past two decades. This review focuses on the noncovalent and enzymatic control of supramolecular biomaterials, with the introduction to various triggering mechanism to initiate self-assembly. Representative applications of supramolecular biomaterials are highlighted in four categories: tissue engineering, cancer therapy, drug delivery, and molecular imaging. By introducing various applications, we intend to show enzymatic control and noncovalent interactions as a powerful tool for achieving spatiotemporal control of biomaterials both in vitro and in vivo for biomedicine.
description: EXCLI Journal; 19:Doc1124; ISSN 1611-2156
Spin torque and waviness in magnetic multilayers: a bridge between Valet-Fert theory and quantum approaches
Creators: name: Rychkov, Valentin S.
name: Borlenghi, Simone
name: Jaffres, Henri
name: Fert, Albert
name: Waintal, Xavier
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We develop a simple theoretical framework for transport in magnetic multilayers, based on Landauer-Buttiker scattering formalism and Random Matrix Theory. A simple transformation allows one to go from the scattering point of view to theories expressed in terms of local currents and electrochemical potential. In particular, our theory can be mapped onto the well established classical Valet Fert theory for collinear systems. For non collinear systems, in the absence of spin-flip scattering, our theory can be mapped onto the generalized circuit theory. We apply our theory to the angular dependance of spin accumulation and spin torque in non-collinear spin valves.
Heliospheric Magnetic Field 1835-2009
Creators: name: Svalgaard, Leif
name: Cliver, Edward W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We use recently acquired geomagnetic archival data to extend our long-term reconstruction of the HMF strength. The 1835-2009 HMF series is based on an updated and substantiated IDV series from 1872-onwards and on Bartels' extension, by proxy, of his u-series from 1835-1871. The new IDV series, termed IDV09, has excellent agreement (R^2 = 0.98; RMS = 0.3 nT) with the earlier IDV05 series, and also with the negative component of Love's extended (to 1905) Dst series (R^2 = 0.91). Of greatest importance to the community, in an area of research that has been contentious, comparison of the extended HMF series with other recent reconstructions of solar wind B for the last ~100 years yields a strong consensus between series based on geomagnetic data. Differences exist from ~1900-1910 but they are far smaller than the previous disagreement for this key interval of low solar wind B values which closely resembles current solar activity. Equally encouraging, a discrepancy with an HMF reconstruction based on 10Be data for the first half of the 20th century has largely been removed by a revised 10Be-based reconstruction published after we submitted this paper, although a remaining discrepancy for the years ~1885-1905 will need to be resolved.
title: Comparison of the Mineralogy and Morphology of Some Cambic and Argillic Horizons in Soils of Northern Utah
Creators: name: Southard, Randal Jay
Publisher: name: Utah State University
Year: 1980

description: The mineralogy and morphology of a soil with a cambic horizon (Stingal) and a soil with an argillic horizon (Hansel), occurring in northern Utah, were studied. Pedons representing the central concept of each of the soils were sampled by genetic horizon for laboratory analyses. Particle- size distribution, calcium carbonate equivalent, cation-exchange capacity, organic carbon , and the mineralogy of the silt, coarse clay, and fine clay fractions were determined. Thin sections of the soils were examined with a petrographic microscope. Selected peds were observed using a scanning electron microscope, and elemental analyses were made with an x-ray analyzer.
The two soils were found to be similar in many respects . The particle-size distribution and mineralogy were essentially the same, indicating the similarities of parent materials and the nature of pedogenic processes. As expected, the argillic horizon contained more.
fine and total clay than did the cambic horizon, and the Hansel soil showed signs of more intense weathering. Both factors are related to the greater age of the Hansel soils.
The clay increase in both the cambic and the argillic horizons was attributed to a combination of ill situ clay formation and illuviation. This conclusion was based on the lack of depositional discontinuities, greater ratios of fine to total clay in the B horizons, and the electron microscopic observation of discontinuous clay films in pores of the Hansel soil. The lack of visible clay films in thin section is probably the result of soil mixing by cicada and/or the prevention of translocation by carbonates.
The scanning electron microscope proved to be useful in the investigation of the two soils. The similarities of the two soils were apparent from laboratory analyses and scanning microscope observations. Evidence of illuviation, which was lacking in thin section, was visible with the scanning electron microscope, thus demonstrating the potential of the microscope in classifying and interpreting soils in future investigations.
Statistical methods for the qualitative assessment of dynamic models with time delay (R package qualV)
Creators: name: Jachner, S.
name: Van Den Boogaart, K.G.
name: Petzoldt, T.
Publisher: name: Los Angeles, CA : Foundation for Open Access Statistics
Year: 2007
Subjects: subject: Ecological modeling
subject: Qualitative validation criteria
subject: R
subject: Time shift
subject: 510

description: Results of ecological models differ, to some extent, more from measured data than from empirical knowledge. Existing techniques for validation based on quantitative assessments sometimes cause an underestimation of the performance of models due to time shifts, accelerations and delays or systematic differences between measurement and simulation. However, for the application of such models it is often more important to reproduce essential patterns instead of seemingly exact numerical values. This paper presents techniques to identify patterns and numerical methods to measure the consistency of patterns between observations and model results. An orthogonal set of deviance measures for absolute, relative and ordinal scale was compiled to provide informations about the type of difference. Furthermore, two different approaches accounting for time shifts were presented. The first one transforms the time to take time delays and speed differences into account. The second one describes known qualitative criteria dividing time series into interval units in accordance to their main features. The methods differ in their basic concepts and in the form of the resulting criteria. Both approaches and the deviance measures discussed are implemented in an R package. All methods are demonstrated by means of water quality measurements and simulation data. The proposed quality criteria allow to recognize systematic differences and time shifts between time series and to conclude about the quantitative and qualitative similarity of patterns.
title: Total Solar Irradiance and Weather Systems Along 40 Degrees North Latitude in the Rocky Mountains
Creators: name: Secrest, Jeffrey A.
Publisher: name: Utah State University
Year: 1980

description: This study addresses the availability of total solar irradiance at the earth's surface during varying weather conditions . Two years of irradiance and meteorological data were collected at mountain and valley sites along 40° North latitude in the Rocky Mountains of Utah and Colorado.
Generalized cases of recurring seasonal weather episodes and the associated t o t al irradiance a re identified and discussed , including local mesoscale phenomena (orographic clouds , valley fog, etc.) unique to mountainous regions . The generalized cases can be useful in long- range energy assessment planning. The east and west slopes of the Rocky Mountains are shown to have similar annual average solar energy potential , however the seasonal differences reveal unique climates which require different considerations for each slope.
Short -term relationships between cloudiness and t o t al irradiance are developed for the mountainous region, providing a tool for forecasting solar irradiance using a cloudiness forecast. Total irradiance is shown to correlate much better to opaque sky cover than co total cloud cover . The relationships on the east and west slopes are similar , however greater variations a re observed with elevation between the mountain and valley sites . Short- term forecasting of irradiance is found to be limited due t o unreliable cloudiness fore-casting techniques , tho ugh satellite imagery trajectories are more reliable than numerical methods.
Further investigations on certain star selection principles
Creators: name: Chandra, Debraj
name: Alam, Nur
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: 54D20, 54B05, 54C10, 54D99

description: We consider certain star versions of the Menger, Hurewicz and Rothberger properties. Few important observations concerning these properties are presented, which have not been investigated in earlier works. A variety of investigations is performed using Alster covers and critical cardinalities $\mathfrak{d}$, $\mathfrak{b}$ and ${\sf cov}(\mathcal{M})$. Our study explores further ramifications on the extent and Alexandroff duplicate. In the process we present investigations on the star versions of the Rothberger property and compare with similar prior observations of the star versions of the Menger and Hurewicz properties. We sketch few tables that interpret (mainly preservation-kind of) properties of the star selection principles obtained so far. We also present implication diagrams to explicate the interplay between the star selection principles.
description: arXiv admin note: text overlap with arXiv:2208.12677
title: Antelope Island Study: Guidelines for Recreational Land Use Planning for Antelope Island, Utah, Using Computer Techniques
Creators: name: Scott, Robert D.
Publisher: name: Utah State University
Year: 1974

description: Throughout the history of traditional land use planning, justification for allocating a land use for a particular area has been accomplished generally in a debilitated fashion. For example, decisions have generally been arrived at by (1) political process--incorporating fringe areas into present land use patterns, or (2) short-term revenue producers are given a land use change from a tax base incentive, or (3) revelations implemented, or other subjective justifications. Except in very few instances, data used to base land use planning decisions was not accurately interpreted for adequate input or not even gathered.
Recently, new and innovative methods for land use planning processes have evolved to gather, interpret and measure data more accurately. More notable processes have been developed by Ian McHarg, Peter Jacobs, Phillip H. Lewis, G. Angus Hills, David Stinton and Carl Steinitz. David Stinton and Carl Steinitz developed a program called "GRID" which basically utilizes the computer as a tool to process data and display data through computer graphics as maps.
The process implemented in this project to compile and graphically display data was the GRID computer program. The program utilized Utah State University's Burroughs 6700 digital computer. This system has been found to be faster and more economical than the traditional method of overlays without sacrificing accuracy.
Utilizing computer graphic techniques, this project conducted a detailed environmental inventory and analysis of Antelope Island, Utah. Various land use activities were evaluated for their potential impact upon certain natural systems of the island.
The major objective of this thesis is to provide, for interested levels of government and concerned citizens, guidelines for land use planning that will assist them in making more meaningful and accurate decisions of present and future land use in the study area.
This project established recreational guidelines for Antelope Island, Utah, and acts as a study model for recreational land use planning for the cold desert biome states of Arizona, Nevada, and Utah. The study is an environmental analysis and attempts to recognize problem areas sensitive to development. Guidelines deal directly with maximizing recreation potential of the island while minimizing impacts on natural systems such as vegetation, wildlife and soil erosion.