cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
New approaches in landscape genetics and niche modeling for understanding limits to anuran distributions
Creators: name: Murphy, Melanie April
Publisher: name: Washington State University
Year: 2008
Subjects: Anura -- Yellowstone National Park -- Geographical distribution

description: A central objective in ecology and conservation biology is to understand processes
description: limiting species’ distributions and population connectivity. This is particularly important for
description: amphibians, which are in global decline at rate exceeding other vertebrates. Niche modeling and
description: landscape genetics are well suited for addressing distribution and connectivity respectively. This
description: dissertation addresses four objectives: i) test whether landscape genetics is possible on spatial
description: and temporal scales relevant to conservation, ii) examine whether spatial processes,
description: environmental condition or dispersal limited niche best explains the observed differences in
description: Pseudacaris maculata and Bufo boreas distributions in Yellowstone, iii) test alternative
description: hypotheses of ecological processes driving B. boreas connectivity in Yellowstone, and iv)
description: develop a new application of gravity models to estimate metapopulation connectivity for Rana
description: luteiventris in central Idaho. In Chapter 1, I developed and evaluated “genetic surfacing”, a
description: continuous method for representing multilocus genetic variation. I detected landscape genetic
description: structure on a contemporary time scale relevant to conservation questions (5 generations post
description: v
description: vicariance, migration probability 0.10), even when population differentiation was minimal (FST
description: 0.00015). Using spatial distribution models in Chapter 2, I found environmental conditions
description: limiting species’ distributions to be divergent and distance limited niche theory best explained
description: observed species’ distributions. In Chapter 3, I implemented a novel algorithmic approach to
description: test alternative hypotheses of processes limiting connectivity in B. boreas. At fine scales,
description: connectivity was limited by cover, precipitation and roads, whereas ridges, temperature, and
description: precipitation limited connectivity at a broad scale. Using newly derived gravity models in
description: Chapter 4, I found R. luteiventris connectivity was a function of both at site and between site
description: landscape processes. Primary productivity and fish presence at sites limited production of
description: potential migrants. Temperature and major topographic complexity between sites limited
description: connectivity. The impact of temperature-moisture regimes on all three species suggests that
description: future climate change may have a dramatic impact on anuran distribution and connectivity. The
description: methods developed in this dissertation could be used to predict species’ distributions (niche
description: models) and resulting connectivity (landscape genetics) in future landscapes.
การดื้อต่อสารทีมีฟอสของลูกน้ำยุงลายบ้าน ในพื้นที่สำนักงานป้องกันควบคุมโรคที่ 8 จังหวัดอุดรธานี
Creators: name: บุญเทียน อาสารินทร์
Publisher: name: กองนวัตกรรมและวิจัย กรมควบคุมโรค
Year: 2562
Subjects: อัตราการดื้อ
สารทีมีฟอส
ลูกน้ำยุงลายบ้าน

description: วารสารควบคุมโรค, 45, 4, 431-438
Interspecies Förster resonances of Rb-Cs Rydberg $d$-states for enhanced multi-qubit gate fidelities
Creators: name: Ireland, Paul M.
name: Walker, D. M.
name: Pritchard, J. D.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present an analysis of interspecies interactions between Rydberg $d$-states of rubidium and cesium. We identify the Förster resonance channels offering the strongest interspecies couplings, demonstrating the viability for performing high-fidelity two- and multi-qubit $C_kZ$ gates up to $k=4$, including accounting for blockade errors evaluated via numerical diagonalization of the pair-potentials. Our results show $d$-state orbitals offer enhanced suppression of intraspecies couplings compared to $s$-states, making them well suited for use in large-scale neutral atom quantum processors.
description: 12 pages, 5 figures
Determining Dark Matter properties with a XENONnT/LZ signal and LHC-Run3 mono-jet searches
Creators: name: Baum, Sebastian
name: Catena, Riccardo
name: Conrad, Jan
name: Freese, Katherine
name: Krauss, Martin B.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We develop a method to forecast the outcome of the LHC Run 3 based on the hypothetical detection of $\mathcal{O}(100)$ signal events at XENONnT. Our method relies on a systematic classification of renormalisable single-mediator models for dark matter-quark interactions, and is valid for dark matter candidates of spin less than or equal to one. Applying our method to simulated data, we find that at the end of the LHC Run 3 only two mutually exclusive scenarios would be compatible with the detection of $\mathcal{O}(100)$ signal events at XENONnT. In a first scenario, the energy distribution of the signal events is featureless, as for canonical spin-independent interactions. In this case, if a mono-jet signal is detected at the LHC, dark matter must have spin 1/2 and interact with nucleons through a unique velocity-dependent operator. If a mono-jet signal is not detected, dark matter interacts with nucleons through canonical spin-independent interactions. In a second scenario, the spectral distribution of the signal events exhibits a bump at non zero recoil energies. In this second case, a mono-jet signal can be detected at the LHC Run 3, dark matter must have spin 1/2 and interact with nucleons through a unique momentum-dependent operator. We therefore conclude that the observation of $\mathcal{O}(100)$ signal events at XENONnT combined with the detection, or the lack of detection, of a mono-jet signal at the LHC Run 3 would significantly narrow the range of possible dark matter-nucleon interactions. As we argued above, it can also provide key information on the dark matter particle spin.
description: 17 pages, 8 figures, updated operator coefficients and figures, version accepted by PRD
title: ADCO, Sixième cartulaire de Saint-Étienne de Dijon (1662), Cart. 30 (G 133), 441 folios, f. 241
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire

description: Sixième cartulaire de Saint-Étienne de Dijon (1662), Archives départementales de la Côte-d'Or, Cart. 30 (G 133), 441 folios, f. 241, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Sixième cartulaire de Saint-Étienne de Dijon (1662), Archives départementales de la Côte-d'Or, Cart. 30 (G 133), 441 folios, f. 241, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Methods: estimating the feasibility of replications in Behavioral Ecology
Creators: name: O'Dea, Rose
name: Head, Megan
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Life Sciences
subject: Ecology and Evolutionary Biology

description: In this registration we describe our planned methods for using a sample of studies published in the journal Behavioral Ecology to achieve three aims: (1) estimate the feasibility of close replication studies from papers published in Behavioral Ecology; (2) based on our estimates of feasibility, provide a list of influential studies that could be the targets for future replications; and (3) estimate the replication rate for studies published in Behavioral Ecology.
title: The work of high school counselors' leadership for social justice
title: An analytic autoethnography
titleType: Subtitle
Creators: name: Griffin, Ramona H.
Publisher: name: Washington State University
Year: 2009
Subjects: Student counselors

description: With the American School Counselor Association's (ASCA) adoption of the National Model, school counselors are called to align their work with educational reform initiatives and provide leadership in public schools (Dollarhide, 2003). School counseling literature supporting leadership for social justice is frequently reiterated (Hatch & Bowers, 2002; Herr, 2001, Adelman & Taylor, 2002; Bemak, 2000). There is minimal discussion or definition of leadership beyond reference to instigating change, collaborating with others, and participating in decision making. The purpose of this dissertation was to examine high school counselors' understanding of their work and their experiences of leadership for social justice. The following questions guided this study: (a) How do high school counselors perceive and experience their work? (B) How do high school counselors incorporate, respond, or contribute to school reform initiatives into their work? And (c) What are the implications of such understandings for social justice and leadership in the work of high school counselors? Fourteen high school counselors were invited to participate in the study. The tasks of interviewing and observing participants opened to reflection on my 23 years of counseling. Analytic autoethnography facilitated a critical examination of my biases, values, and attitudes. Three areas of primary responsibility emerged through data analysis and were labeled intervention, guidance, and administration. The areas of responsibility demark the scope of practice relevant to the leadership of high school counselors and were defined by six attributes labeled professional socialization, problems, role, power, authority, and rewards. Participants identified the continued influence of guidance and intervention on their professional lives. Providing students with guidance and intervention, while sometimes intertwined, often competes in the time, attention, and energy that each demands. Both guidance and intervention oriented counselors to attend to the urgent and unique in students. The function, information, and concern of administration lifted counselors' attention to school-wide issues. Participants employed insights derived from guidance and intervention to inform and support their work in administration. Being drawn into conflict and resistance over reform implementation, high school counselors discussed leadership in recognizing and revising educational policy, procedure, and practice to advance opportunities for all students.
Celestial self-dual Yang-Mills theory: a new formula and the OPE limit
Creators: name: Chattopadhyay, Pratik
name: Tao, Yi-Xiao
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Celestial holography is a new way to understand flat-space amplitudes. Self-dual theories, due to their nice properties, are good subjects to study celestial holography. In this paper, we developed a new formula to calculate the celestial color-ordered self-dual Yang-Mills amplitudes based on celestial Berends-Giele currents, which makes the leading OPE limit manifest. In addition, we explore some higher-order terms of OPE in the celestial self-dual Yang-Mills theory.
description: JHEP version
Additional file 1: of Analyses of starch biosynthetic protein complexes and starch properties from developing mutant rice seeds with minimal starch synthase activities
Creators: name: Hayashi, Mari
name: Crofts, Naoko
name: Oitome, Naoko
name: Fujita, Naoko
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Space Science
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Molecular weight distributions of BE isozymes from developing rice endosperm determined by gel filtration chromatography. Soluble proteins were separated by gel filtration chromatography. Fractions were denatured and separated by SDS-PAGE, and immuno-blotting was performed using the indicated antibodies. (PDF 903Â kb)
Inflation is the generic feature of phantom field-not the big-rip
Creators: name: Sanyal, Abhik Kumar
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A class of solutions for phantom field corresponding to a generalized k-essence lagrangian has been presented, employing a simple method which provides the scope to explore many such. All the solutions having dynamical state parameter are found to touch the magic line w = -1, asymptotically. The solutions with constant equation of state can represent phantom, quitessence or an ordinary scalar field cosmologies depending on the choice of a couple of parameters of the theory. For w approximately equal to -1, quintessence and phantom models are indistinguishable through the Hubble parameter. Finally, inflation rather than big-rip has been found to be the generic feature of phantom cosmology.
description: 8 pages, 3 figures
Ultralow Lattice Thermal Conductivity in Complex Structure Cu26V2Sn6Se32 due to Interaction of Low-Frequency Acoustic-Optical Phonons
Creators: name: Rana, Kewal Singh
name: Sarkar, Debattam
name: Nidhi
name: Singh, Aditya
name: Bera, Chandan
name: Biswas, Kanishka
name: Soni, Ajay
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Damping of phonon momentum suppresses the lattice thermal conductivity (kl) through low energy acoustic-optical phonon interactions. We studied the thermal transport properties and underlying mechanism of phonon interactions in the large unit cell Cu26V2Sn6Se32. The large number of atoms in the unit cell results in low acoustic phonon cutoff frequency, flat phonon branches, low frequency Raman active modes, localized rattler-like vibrations and strong crystalline anharmonicity. The crystal structure complexity disrupts the phonon propagation through weak bonded Cu atoms, boson peak and poor phonon velocity. The sulfur at selenium sites (Cu26V2Sn6Se30S2) distort the crystal lattice by offering additional scattering mechanism at the anionic sites, thereby increases the power factor and decreases the kl. This strategic manipulation of phonon scattering towards ultra-low kl not only results in improved thermoelectric performance but also offers insights into the fundamental understanding of heat transport in complex structured, large unit cell compounds.
description: 20 pages, 6 figures
Force and Mass Dynamics in Non-Newtonian Suspensions
Creators: name: Lim, Melody X.
name: Barés, Jonathan
name: Zheng, Hu
name: Behringer, Robert P.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Above a certain solid fraction, dense granular suspensions in water exhibit non-Newtonian behavior, including impact-activated solidification. Although it has been suggested that solidification depends on boundary interactions, quantitative experiments on the boundary forces have not been reported. Using high-speed video, tracer particles, and photoelastic boundaries, we determine the impactor kinematics and the magnitude and timings of impactor-driven events in the body and at the boundaries of cornstarch suspensions. We observe mass shocks in the suspension during impact. The shockfront dynamics are strongly correlated to those of the intruder. However, the total momentum associated with this shock never approaches the initial impactor momentum. We also observe a faster second front, associated with the propagation of pressure to the boundaries of the suspension. The two fronts depend differently on the initial impactor speed, $v_0$, and the suspension packing fraction. The speed of the pressure wave is at least an order of magnitude smaller than (linear) ultrasound speeds obtained for much higher frequencies, pointing to complex amplitude and frequency response of cornstarch suspensions to compressive strains.
Exploring the impact of rumination, defense style, and stress on adjustment and depressive symptoms
Creators: name: Lavoy, Mercedes Ann
Publisher: name: Washington State University
Year: 2010
Subjects: Depression, Mental -- Risk factors

description: This study examined the hypothesized interaction between rumination and defense style as diatheses for maladjustment and dysphoria. One hundred sixty seven participants completed measures of defense style, rumination, depressive symptoms, and adjustment at Time 1, and returned four weeks later at Time 2 to complete measures of negative life experiences, major life stressors, depressive symptoms, and adjustment. Supporting our hypotheses, significant interactions were found among rumination, immature defense style, and stress in predicting changes in adjustment and depressive symptoms over time. Results indicated that individuals with high levels of rumination, if possessing immature defense style, are particularly prone to increases in depressive symptoms and maladjustment when faced with high stress. This work has potential benefits for understanding the cognitive mechanisms that lead to depression. Research and clinical implications are discussed.
title: ADCO, Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Cart. 32 (G 136), 745 folios, f. 0857
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 0857, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 0857, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
การเปรียบเทียบประสิทธิภาพของผลิตภัณฑ์เคมีกำจัดแมลง ที่ใช้ในการควบคุมแมลงสาบเยอรมัน
Creators: name: สุนัยนา สท้านไตรภพ
Publisher: name: กองนวัตกรรมและวิจัย กรมควบคุมโรค
Year: 2562
Subjects: แมลงสาบเยอรมัน
ทดสอบฤทธิ์สัมผัส
ไซเพอร์เมทริน
คลอร์ไพริฟอส
ฟิโพรนิล
คลอร์เฟนาเพอร์

description: วารสารควบคุมโรค, 45, 4, 392-401
The Supersymmetric Georgi-Machacek Model
Creators: name: Vega, Roberto
name: Vega-Morales, Roberto
name: Xie, Keping
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We show that the well known Georgi-Machacek (GM) model can be realized as a limit of the recently constructed Supersymmetric Custodial Higgs Triplet Model (SCTM) which in general contains a significantly more complex scalar spectrum. We dub this limit of the SCTM, which gives a weakly coupled origin for the GM model at the electroweak scale, the Supersymmetric GM (SGM) model. We derive a mapping between the SGM and GM models using it to show how a supersymmetric origin implies constraints on the Higgs potential in conventional GM model constructions which would generically not be present. We then perform a simplified phenomenological study of diphoton and ZZ signals for a pair of benchmark scenarios to illustrate under what circumstances the GM model can mimic the SGM model and when they should be easily distinguishable.
description: References added and figures updated. Version to be published in JHEP
The effects of alcohol on sleep in rats
Creators: name: Mukherjee, Sanjib
Publisher: name: Washington State University
Year: 2008
Subjects: Alcohol -- Physiological effect

description: Sleep pathology is a frequent complication in human alcoholics and is associated with relapse drinking. Progress in understanding this pathology requires an animal model but an optimal alcohol treatment paradigm that produces robust sleep pathologies in the rat has not been defined. Alcohol was delivered either in water (6% and 12%) or in liquid diet (3% and 6%). Result shows that 6% alcohol in liquid diet for 6 weeks produces the greatest alteration of sleep. This includes flattening of the distribution of wake, slow-wave sleep (SWS) and rapid-eye movement sleep (REMS) across dark and light period, without any alteration of daily time spent in each vigilance state. In addition slow wave amplitude across dark and light period is also flattened. In order to describe better the effects of alcohol on sleep in rats a more precise description of sleep in rats is required. Rats sleep in episodic manner, however a formal definition of sleep unit is lacking. Analysis of wake periods in rat suggested that rats have at least two modes of wake, the long duration wake (LDW) and the brief wake (BW). When rats are not in LDW, they cycle relatively rapidly through SWS, REMS and BW, a period we call vigilance cycling (VC). In the light period VC episodes are extended, more intense, but less in number. In contrast, the number of VC is greater in the dark period but they are less intense. We propose that VC represents a sleep unit in rats. The usefulness of VC and LDW becomes apparent when we analyze the effects of chronic alcohol treatment on sleep. The extended VC episodes in the light period were fragmented after chronic alcohol treatment in addition to a suppression of REMS. The effect of chronic alcohol treatment on sleep is found to be different from the effect of acute alcohol treatment on sleep. These results demonstrate that the effects of chronic alcohol in humans (REMS suppression and inability to remain asleep at night) are also produced in the rat. Additionally, it also demonstrates the usefulness of the analysis of rat's vigilance states into LDW and VC.
ANIMA D4.3 (Unofficial) - 1st Scenarios Simulation
Creators: name: Meliveo, Luis
Publisher: name: Zenodo
Year: 2020
Subjects: Aviation noise, Virtual Community Tool, Noise computation, annoyance assessment

description: This document is the provisional unofficial version of D.4.3. It gives account of progresses made on the Virtual Communty Tool (VCT) and on validating its simulation capability. In ANIMA, flight scenarios are being defined for technologies, operational procedures and noise management actions on a number of selected airports. These scenarios are being by the VCT, taking into consideration criteria such as noise exposure, annoyance and sleep disturbance and noise-emissions interdependencies. Two cycles of scenarios are planned through through Deliverables D6.2 (Scenario definition V1) and D6.15 (Scenario definition V2). Each of them will be computed through Deliverables D4.3 (1st scenario simulations) and 4.10 (2nd scenario simulations). It was decided to split the V1 scenarios in 2 parts: 1A: to support development of the tool chain 1B: the first full set, to support the first update of the roadmap Deliverable D6.2 was issued with a definition of scenario 1A only. The present version of D4.3 therefore only covers this first scenario, with the aim to test the tool chain. An update of this document D4.3 will be issued after the definition and simulation of scenario 1B have been finalised.
DJCM: A Deep Joint Cascade Model for Singing Voice Separation and Vocal Pitch Estimation
Creators: name: Wei, Haojie
name: Cao, Xueke
name: Xu, Wenbo
name: Dan, Tangpeng
name: Chen, Yueguo
Publisher: name: arXiv
Year: 2024
Subjects: subject: Sound (cs.SD)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Singing voice separation and vocal pitch estimation are pivotal tasks in music information retrieval. Existing methods for simultaneous extraction of clean vocals and vocal pitches can be classified into two categories: pipeline methods and naive joint learning methods. However, the efficacy of these methods is limited by the following problems: On the one hand, pipeline methods train models for each task independently, resulting a mismatch between the data distributions at the training and testing time. On the other hand, naive joint learning methods simply add the losses of both tasks, possibly leading to a misalignment between the distinct objectives of each task. To solve these problems, we propose a Deep Joint Cascade Model (DJCM) for singing voice separation and vocal pitch estimation. DJCM employs a novel joint cascade model structure to concurrently train both tasks. Moreover, task-specific weights are used to align different objectives of both tasks. Experimental results show that DJCM achieves state-of-the-art performance on both tasks, with great improvements of 0.45 in terms of Signal-to-Distortion Ratio (SDR) for singing voice separation and 2.86% in terms of Overall Accuracy (OA) for vocal pitch estimation. Furthermore, extensive ablation studies validate the effectiveness of each design of our proposed model. The code of DJCM is available at https://github.com/Dream-High/DJCM .
description: This paper has been accepted by ICASSP 2024
Clustering of Monopoles in the Instanton Vacuum
Creators: name: Fukushima, Masahiro
name: Sasaki, Shoichi
name: Suganuma, Hideo
name: Tanaka, Atsunori
name: Toki, Hiroshi
name: Diakonov, Dmitri
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We generate a random instanton vacuum with various densities and size distributions. We perform numerically the maximally abelian gauge fixing of these configurations in order to find monopole trajectories induced by instantons. We find that instanton-induced monopole loops form enormous clusters occupying the whole physical volume, provided instantons are sufficiently dense. It indicates that confinement might be caused by instantons.
description: 7 pages, Plain Latex, (3 figures - available on request from ssasaki@rcnp.osaka-u.ac.jp)
High speed SiGe MMICS for phased array communications
Creators: name: Sun, Pinping
Publisher: name: Washington State University
Year: 2008
Subjects: Artificial satellites in telecommunication

description: High speed SiGe MMICS for phased array communications has been widely used in satellite communications. This dissertation presents the development of reconfigurable SiGe MMICs for upper X-band or lower Ku band satellite phased array communications. Novel high-isolation, low-insertion-loss and highly linear octagonal PIN diode has been designed on SiGe substrate to improve on the current state of the art performance. Fabricated in a standard 0.18-μm SiGe BiCMOS technology, the 50 μm2 PIN SPST switch can achieve an insertion loss of less than 0.65 dB from 2 to 18 GHz with the measured P1dB of 16 dBm. The radiation tolerance of the developed PIN diodes has been verified with TID test up to 1000 krad.
Quasi-exactly solvable potentials in Wigner-Dunkl quantum mechanics
Creators: name: Quesne, C.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: It is shown that the Dunkl harmonic oscillator on the line can be generalized to a quasi-exactly solvable one, which is an anharmonic oscillator with $n+1$ known eigenstates for any $n\in \N$. It is also proved that the Hamiltonian of the latter can also be rewritten in a simpler way in terms of an extended Dunkl derivative. Furthermore, the Dunkl isotropic oscillator and Dunkl Coulomb potentials in the plane are generalized to quasi-exactly solvable ones. In the former case, potentials with $n+1$ known eigenstates are obtained, whereas, in the latter, sets of $n+1$ potentials associated with a given energy are derived.
description: 9 pages, no figure; published version
Scattering, weak localization and Shubnikov-de Haas oscillation in high carrier density AlInN/GaN heterostructures
Creators: name: Wang, Leizhi
name: Yin, Ming
name: Khan, Asif
name: Muhtadi, Sakib
name: Asif, Fatima
name: Choi, Eun Sang
name: Datta, Timir
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We provide the first observation of weak localization in high carrier density two-dimensional electron gas in AlInN/GaN heterostructures; at low temperatures and low fields the conductivity increases with increasing magnetic field. Weak localization is further confirmed by the lnT dependence of the zero-field conductivity and angle dependence of magnetoresistance. The inelastic scattering rate is linearly proportional to temperature, demonstrating that electron-electron scattering is the principal phase breaking mechanism. Shubnikov-de Haas (SdH) oscillations at high magnetic fields are also observed. From the temperature dependent amplitude of SdH oscillation and Dingle plot, the effective mass of electron is extracted to be 0.2327me; in addition the quantum lifetime is smaller than transport time from Hall measurement, indicating small angle scattering such as from remote ionized impurities is dominant. Above 20 K, the scattering changes from acoustic phonon to optical phonon scattering, resulting in a rapid decrease in carrier mobility with increasing temperature.
description: 11 pages, 6 figures
A Dusty Locale: Evolution of Galactic Dust Populations from Milky Way to Dwarf-Mass Galaxies
Creators: name: Choban, Caleb R.
name: Kereš, Dušan
name: Sandstrom, Karin M.
name: Hopkins, Philip F.
name: Hayward, Christopher C.
name: Faucher-Giguère, Claude-André
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Observations indicate dust populations vary between galaxies and within them, suggesting a complex life cycle and evolutionary history. Here we investigate the evolution of galactic dust populations across cosmic time using a suite of cosmological zoom-in simulations from the Feedback in Realistic Environments (FIRE) project, spanning $M_{\rm vir}=10^{9-12}M_{\odot};\,M_{*}=10^{6-11}\,M_{\odot}$. Our simulations incorporate a dust evolution model that accounts for the dominant sources of dust production, growth, and destruction and follows the evolution of specific dust species. All galactic dust populations in our suite exhibit similar evolutionary histories, with gas-dust accretion being the dominant producer of dust mass for all but the most metal-poor galaxies. Similar to previous works, we find the onset of efficient gas-dust accretion occurs above a `critical' metallicity threshold ($Z_{\rm crit}$). Due to this threshold, our simulations reproduce observed trends between galactic D/Z and metallicity and element depletion trends in the ISM. However, we find $Z_{\rm crit}$ varies between dust species due to differences in key element abundances, dust physical properties, and life cycle processes resulting in $Z_{\rm crit}\sim0.05Z_{\odot},\,0.2Z_{\odot},\,0.5Z_{\odot}$ for metallic iron, silicates, and carbonaceous dust, respectively. These variations could explain the lack of small carbonaceous grains observed in the Magellanic Clouds. We also find a delay between the onset of gas-dust accretion and when a dust population reaches equilibrium, which we call the equilibrium timescale ($τ_{\rm eq}$). The relation between $τ_{\rm eq}$ and the metal enrichment timescale of a galaxy, determined by its recent evolutionary history, can contribute to the scatter in the observed relation between galactic D/Z and metallicity.
description: 24 pages, 18 figures, accepted for publication in MNRAS. Minor changes
Information Flow Rate for Cross-Correlated Stochastic Processes
Creators: name: Hristopulos, Dionissios T.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Artificial Intelligence (cs.AI)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: 62D20, 60G15, 60G10

description: Causal inference seeks to identify cause-and-effect interactions in coupled systems. A recently proposed method by Liang detects causal relations by quantifying the direction and magnitude of information flow between time series. The theoretical formulation of information flow for stochastic dynamical systems provides a general expression and a data-driven statistic for the rate of entropy transfer between different system units. To advance understanding of information flow rate in terms of intuitive concepts and physically meaningful parameters, we investigate statistical properties of the data-driven information flow rate between coupled stochastic processes. We derive relations between the expectation of the information flow rate statistic and properties of the auto- and cross-correlation functions. Thus, we elucidate the dependence of the information flow rate on the analytical properties and characteristic times of the correlation functions. Our analysis provides insight into the influence of the sampling step, the strength of cross-correlations, and the temporal delay of correlations on information flow rate. We support the theoretical results with numerical simulations of correlated Gaussian processes.
description: 16 pages, 5 figures; to appear in IEEE Transactions on Signal Processing
Quantum cosmology of a conformal multiverse
Creators: name: Robles-Perez, Salvador J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper it is studied the cosmology of a homogeneous and isotropic spacetime endorsed with a conformally coupled massless scalar field. We find six different solutions of the Friedmann equation that represent six different types of universes, all of them are periodically distributed along the complex time axis. From a classical point of view, they are then isolated, separated by Euclidean regions that represent quantum mechanical barriers. Quantum mechanically, however, there is a non-zero probability for the state of the universes to tunnel out through a Euclidean instanton and suffer a sudden transition to another state of the spacetime. We compute the probability of transition for this and other non-local processes like the creation of universes in entangled pairs and, generally speaking, in multipartite entangled states. We obtain the quantum state of a single universe within the formalism of the Wheeler-DeWitt equation and give the semiclassical state of the universes that describes the quantum mechanics of a scalar field propagating in a deSitter background spacetime. We show that the superposition principle of the quantum mechanics of matter fields alone is an emergent feature of the semiclassical description of the universe that is not valid, for instance, in the spacetime foam. We use the third quantization formalism to describe the creation of an entangled pair of universes with opposite signs of their momenta conjugated to the scale factor. Each universe of the entangled pair represents an expanding spacetime in terms of the WKB time experienced by internal observers in their particle physics experiments. We compute the effective value of the Friedmann equation of the background spacetime of the two entangled universes and, thus, the effects that the entanglement would have in their expansion rates...
description: 21 pages, 15 figures
Effects of microstructure, porosity and interface on thermal properties of Ti, A1-12Si, and brass coated AISI 410 stainless steel
Creators: name: Espana, Felix A.
Publisher: name: Washington State University
Year: 2010
Subjects: Thermal Conductivity

description: There have been many attempts to change not only the mechanical properties but also physical properties of a material through common material processing. One such property of interest is the thermal conductivity (TC), which is driven by the need for improved materials and composites to conduct heat away from crucial components of a given system. It is important to know what influences TC. Some of the important factors include: matrix microstructure, the reinforcement distribution as well as amount of reinforcement, the strength of the interfacial bond between the matrix and the reinforcement and finally the porosity level. In this work, the feasibility of enhancing the inherent TC of a given material through various methods has been studied. Three main methods were implemented using laser processing; porosity, microstructure, and surface modification or coating. All of these can be accomplished utilizing Laser Engineered Net Shaping, a rapid prototyping technique in conjunction with optimized processing parameters. In the first part of this work porosity was introduced into Ti-6Al-4V alloy samples to study the effect it has on TC and thermal performance. The porosity level of laser processed samples varied from 0.5 to 22 %. Laser processed samples showed an increase of TC as the porosity decreased. Next, attention was turned to modifying microstructural features of Al-12Si and studying the effect this had on TC. Comparison of microstructural features of laser processed samples with cast Al-12Si alloy showed significant refinement in Si, which improved the TC and compensated for the detrimental effect of porosity on TC. The TC of cast alloy was ~ 21-76% lower than the values exhibited by laser processed samples. Finally, surface modification of AISI SS410 was accomplished by coating it with a high TC brass alloy. The influence of laser treatment on interfacial microstructure and thermal performance was evaluated as a function of coating thickness. Laser deposition resulted in a diffused and metallurgically sound interface between metallurgically incompatible brass coating and theAISI SS410 substrate. Depending on the coating thickness the TC of AISI410 steel increased from 27 W/mK to a maximum of 37 W/mK.
Finite-size effects in the two-dimensional BCS-BEC crossover
Creators: name: Lanaro, M.
name: Bighin, G.
name: Dell'Anna, L.
name: Salasnich, L.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the finite-size effects on the BCS-BEC crossover in two dimensions, occurring in confined fermionic superfluids. We analyze several thermodynamic properties, such as the chemical potential, the energy gap and the superfluid density, taking into account unavoidable quantum fluctuations, and, by means of renormalization group procedure, we detect the putative Berezinskii-Kosterlitz-Thouless phase transition at finite-size.
description: 8 pages, 5 figures, accepted for publication in Physical Review B as an article
Deep Impact Mission to Tempel 1 Favours New Explosive Cosmogony of Comets
Creators: name: Drobyshevski, E. M.
name: Kumzerova, E. A.
name: Schmidt, A. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The assumption that short-period (SP) comets are fragments of massive icy envelopes of Ganymede-like bodies saturated by products of ice electrolysis that underwent global explosions provides a plausible explanation of all known manifestations of comets, including the jet character of outflows, the presence of ions in the vicinity of the nucleus, the bursts and splitting of cometary nuclei, etc., with solar radiation initiating burning of the products of electrolysis in the nucleus. As shown persuasively by numerical simulation carried out in hydrodynamic approximation, the shock wave initiated by the Deep Impact (DI) impactor in the cometary ice saturated originally by the electrolysis products 2H2 + O2 is capable of activating under certain conditions exothermal reactions (of the type O2 + H2 + organics = H2O + CO + HCN + other products of incomplete burning of organics including its light and heavy pyrolyzed compounds, soot, etc.), which will slow down shock wave damping (forced detonation) and increase many times the energy release. As a result, the measured energetics of ejections and outflows from the crater have to exceed the DI energetics. Analysis of different clusters of the DI experiment data confirms these conclusions and expectations and thus it favours the planetary origin of comets.
description: 21 pages incluging 3 figures
MOESM6 of Molecular, phylogenetic and developmental analyses of Sall proteins in bilaterians
Creators: name: JosĂŠ Lorente-Sorolla
name: Truchado-Garcia, Marta
name: Perry, Kimberly
name: Henry, Jonathan
name: Grande, Cristina
Publisher: name: figshare
Year: 2018
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Evolutionary Biology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Additional file 6: Fig. S4. Phylogenetic analysis of Sall proteins across the Bilateria. Maximum clade credibility tree from the BEAST analysis including the deduced amino acid sequences of Sall proteins. Numbers above nodes are Bayesian posterior probabilities. The dark blue line groups Sall sequences of Vertebrates; the light blue line, the sequences of deuterostomes; the green line, the sequences of ecdysozoans (E); the orange line, the sequences of spiralians (S); and the red line, the sequences of xenacoelomorphs (X).
The Causal Axioms of Algebraic Quantum Field Theory: A Diagnostic
Creators: name: Calderón, Francisco
Publisher: name: arXiv
Year: 2024
Subjects: subject: Mathematical Physics (math-ph)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Algebraic quantum field theory (AQFT) puts forward three "causal axioms" that aim to characterize the theory as one that implements relativistic causation: the spectrum condition, microcausality, and primitive causality. In this paper, I aim to show, in a minimally technical way, that none of them fully explains the notion of causation appropriate for AQFT because they only capture some of the desiderata for relativistic causation I state or because it is often unclear how each axiom implements its respective desideratum. After this diagnostic, I will show that a fourth condition, local primitive causality (LPC), fully characterizes relativistic causation in the sense of fulfilling all the relevant desiderata. However, it only encompasses the virtues of the other axioms because it is implied by them, as I will show from a construction by Haag and Schroer (1962). Since the conjunction of the three causal axioms implies LPC and other important results in QFT that LPC does not imply, and since LPC helps clarify some of the shortcomings of the three axioms, I advocate for a holistic interpretation of how the axioms characterize the causal structure of AQFT against the strategy in the literature to rivalize the axioms and privilege one among them.
description: Forthcoming in Studies in History and Philosophy of Science
Instanton Distribution in Quenched and Full QCD
Creators: name: Brower, R. C.
name: Ivanenko, T. L.
name: Negele, J. W.
name: Orginos, K. N.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: In order to optimize cooling as a technique to study the instanton content of the QCD vacuum, we have studied the effects of alternative algorithms, improved actions and boundary conditions on the evolution of single instantons and instanton anti-instanton pairs. Using these results, we have extracted and compared the instanton content of quenched and full QCD.
description: 3 pages, LaTeX file + 3 figures included, uses epsfig.sty and espcrc2.sty. Talk presented at LATTICE96(topology)
title: Ascorbic acid as an effective antioxidant in apple to alleviate browning
title: molecular studies of control of the biosynthesis
titleType: Subtitle
Creators: name: Felicetti, Erin
Publisher: name: Washington State University
Year: 2009
Subjects: Biosynthesis -- Research

description: Apple fruit are subject to multiple stressors during pre- and post-harvest development that can cause an increase in detrimental reactive oxygen species (ROS). In addition, many cultivars are prone to postharvest storage disorders such as internal browning and soft scald that may result from ROS accumulation. To determine the role AsA plays in maintenance of apple fruit integrity, a baseline was established using apples that are standard in the industry, 'Delicious, ' 'Golden Delicious' and 'Fuji.' There was more AsA in peel than cortex for all cultivars during on-tree development and in storage. The quantity declined as ripening progressed. AsA was highest in, and at later stages localized to, the core line and vascular bundles of the fruit. To determine the role of AsA in the development of soft scald in 'Honeycrisp' apples, the amount was quantified via HPLC and RT-PCR for the enzymes involved in the AsA recycling pathway was performed. AsA was higher in peel than cortex at all time points. The results showed a complex AsA recycling cycle, indicating it may play some role in preventing soft scald. The role AsA plays in Braeburn browning disorder was examined comparing 'Braeburn' and 'Gala' AsA levels in CA storage that was inducing to browning. AsA does not seem to play a role in the prevention of browning, as levels were higher in brown cortex tissue from 'Braeburn' than healthy cortex in 'Gala.' To determine what mechanisms control BBD, two suppressive subtractive hybridization libraries were constructed. Healthy cortex displayed stress related and cell maintenance genes, whereas brown cortex had no stress response genes. 'A lack of properly functioning pathways, rather than a specific gene causing browning, may be involved in the development of browning.