cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: The Nonuse of Figurative Language in Conduct Disordered Adolescents
Creators: name: Berger, Mike
Publisher: name: Utah State University
Year: 1998

description: The relationship between the literal language and conduct problems among conduct disordered adolescents was examined in 109 subjects. The inability to use figurative language was found to be positively related to ratings of conduct problems. Both the parents' discipline style and nonuse of figurative language were related to 111 conduct problems in conduct disordered adolescents. The possible role of other variables, for example, age, sex, and IQ, was examined. Possible mechanisms that could relate the lack of figurative competence and conduct problems were explored.
New exact solutions of the standard pairing model for well-deformed nuclei
Creators: name: Pan, Feng
name: Xie, Ming-Xia
name: Guan, Xin
name: Dai, Lian-Rong
name: Draayer, J. P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A new step-by-step diagonalization procedure for evaluating exact solutions of the nuclear deformed mean-field plus pairing interaction model is proposed via a simple Bethe ansatz in each step from which the eigenvalues and corresponding eigenstates can be obtained progressively. This new approach draws upon an observation that the original one- plus two-body problem in a $k$-particle Hilbert subspace can be mapped unto a one-body grand hard-core boson picture that can be solved step by step with a simple Bethe ansatz known from earlier work. Based on this new procedure, it is further shown that the extended pairing model for deformed nuclei [Phys. Rev. Lett. 92, 112503 (2004) ] is similar to the standard pairing model with the first step approximation, in which only the lowest energy eigenstate of the standard pure pairing interaction part is taken into consideration. Our analysis show that the standard pairing model with the first step approximation displays similar pair structures of first few exact low-lying states of the model, which, therefore, provides a link between the two models.
description: 10 pages, Revtex4
Shadow Fermions, Messenger Scalars and Leptogenesis
Creators: name: Guo, Huicheng
name: Hung, P. Q.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A mechanism for leptogenesis at the electroweak scale was investigated in a model of dark energy and dark matter proposed by one of us (PQH). This model involves an asymptotically free gauge group SU(2)Z and an axion-like particle with an SU(2)Z-instanton-induced potential which yields a scenario for the dark energy. Furthermore, the extended particle content of this SU(2)Z model contains a possible candidate for the cold dark matter, namely, the SU(2)Z "shadow" fermion, which couples with the Standard Model lepton through a scalar "messenger field" carrying both SU(2)Z and electroweak quantum numbers. Since these shadow fermions are in a real representation of SU(2)Z, lepton number can be violated in the Yukawa sector and a lepton number asymmetry can be generated in the SU(2)Z particle's decay which is also CP-violating and "out-of-equilibrium". The asymmetry coming from the interference between the tree-level and one-loop amplitudes was calculated for both messenger scalar and shadow fermion decays. It turns out, in order to have a non-vanishing lepton asymmetry and to be consistent with the unitarity condition, some shadow fermions have to decay into lighter messenger scalars, hence could be a candidate "progenitor" for the lepton asymmetry.
description: 33 pages, 4 figures, Version to appear in Nuclear Physics B
Angular distributions as a probe of anomalous ZZH and gammaZH interactions at a linear collider with polarized beams
Creators: name: Rindani, Saurabh D.
name: Sharma, Pankaj
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We examine the contribution of general Z*ZH and gamma*ZH three-point interactions arising from new physics to the Higgs production process e+e- -> HZ. From Lorentz covariance, each of these vertices may be written in terms of three (complex) form factors, whose real and imaginary parts together make six independent couplings. We take into account possible longitudinal or transverse beam polarization likely to be available at a linear collider. We show how partial cross sections and angular asymmetries in suitable combinations with appropriate beam polarizations, can be used to disentangle various couplings from one another. A striking result is that using transverse polarization, one of the gammaZH couplings, not otherwise accessible, can be determined independently of all other couplings. Transverse polarization also helps in the independent determination of a combination of two other couplings, in contrast to a combination of four accessible with unpolarized or longitudinally polarized beams. We also obtain the sensitivity of the various observables in constraining the new-physics interactions at a linear collider operating at a centre-of-mass energy of 500 GeV with longitudinal or transverse polarization.
description: 26 pages, latex, uses axodraw.sty (included in the submission). Revised version corrects some numerical errors and typos. Corresponds to the published version
Fermi's Paradox - The Last Challenge for Copernicanism?
Creators: name: Cirkovic, Milan M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We review Fermi's paradox (or the "Great Silence" problem), not only arguably the oldest and crucial problem for the Search for ExtraTerrestrial Intelligence (SETI), but also a conundrum of profound scientific, philosophical and cultural importance. By a simple analysis of observation selection effects, the correct resolution of Fermi's paradox is certain to tell us something about the future of humanity. Already a more than three quarters of a century old puzzle - and a quarter of century since the last major review paper in the field by G. David Brin - Fermi's paradox has generated many ingenious discussions and hypotheses. We analyze the often tacit methodological assumptions built into various answers to this puzzle and attempt a new classification of the numerous solutions proposed in an already huge literature on the subject. Finally, we consider the ramifications of various classes of hypotheses for the practical SETI projects. Somewhat paradoxically, it seems that the class of (neo)catastrophic hypotheses gives, on balance, the strongest justification for guarded optimism regarding our current and near-future SETI efforts.
description: 39 pages, 3 figures, slightly expanded in comparison to the journal version
title: Optimal Monetary Policy According to HANK
Creators: name: Acharya, Sushant
name: Challe, Edouard
name: Dogra, Keshav
Publisher: name: Bank of Canada
Year: 2021

description: "We study optimal monetary policy in an analytically tractable Heterogeneous Agent New Keynesian (HANK) model with rich cross-sectional heterogeneity in income, wealth and consumption. In such an economy, a central bank has an incentive to reduce consumption inequality in addition to keeping inflation stable and economic activity at its efficient level. These are the central bank’s only objectives in the standard Representative Agent New Keynesian (RANK) model.

Our framework allows monetary policy to affect both within-group and between-group. As in RANK, optimal monetary policy can be thought of as a form of flexible price level targeting. However, a concern for inequality leads the monetary policy-maker to put more weight on stabilizing the level of economic activity and correspondingly less weight on stabilizing prices.

Importantly, a central bank that cares about inequality does not need to explicitly include a measure of inequality in its reaction function—placing a higher weight on stabilizing economic activity is sufficient."

description: "Nous étudions la politique monétaire optimale dans un modèle néokeynésien à agents hétérogènes (« HANK ») résoluble analytiquement caractérisé par une forte hétérogénéité transversale de revenu, de richesse et de consommation. Dans une telle économie, la banque centrale est incitée à réduire les inégalités de consommation, en plus de maintenir l’inflation stable et l’activité économique à son niveau optimal. Ces deux derniers objectifs sont les seuls visés par la banque centrale dans le modèle néokeynésien à agent représentatif (« RANK ») standard.

Dans notre cadre, la politique monétaire influence les inégalités tant au sein des groupes de ménages qu’entre ces groupes. Tout comme dans le modèle RANK, la politique monétaire optimale peut être assimilée à une forme de ciblage flexible de l’inflation. Cependant, la préoccupation de la banque centrale à l’égard des inégalités la conduit à accorder plus d’importance à la stabilisation du niveau de l’activité économique, et donc relativement moins d’importance à la stabilisation des prix.

Essentiellement, une banque centrale qui se préoccupe des inégalités n’a pas besoin d’introduire explicitement une mesure des inégalités dans sa fonction de réaction. Il lui suffit d’accorder plus de poids à la stabilisation de l’activité."
Establishing and Managing Organic Farming Demonstrations. A User's Guide developed for the Organic Agriculture Working Group of the GIZ-GIAE Programme
Creators: name: Kadzere, Irene
name: Adamtey, Noah
name: Bautze, David
name: Holinger, Mirjam
name: Maurer, Veronika
name: Heckendorn, Felix
name: Richter, Toralf
name: Ssebunya, Brian
name: Weidmann, Gilles
name: Nicolay, Gian
name: Fliessbach, Andreas
name: Zeiss, Stefanie
name: Escobar Zavala, Wendy
name: Thadzi, Andrew
name: Kananji, Shaibu
name: Ching'amba, Mike
Publisher: name: Zenodo
Year: 2024
Subjects: organic farming
Africa
on-farm research
demonstration trial
field trial
experiment

description: The User’s Guide was developed to assist farmers, trainers and researchers with planning, establishing and managing unbiased demonstration plots on organic agriculture. The guide highlights, in a step by step manner, the process of defining the purpose of the demo plots and what they aim to resolve and achieve, and how to manage them. By posing the questions rather than providing descriptive content only, the User’s Guide becomes more applicable for different farming contexts.
On the X-ray properties of submm-selected galaxies
Creators: name: Laird, Elise S.
name: Nandra, Kirpal
name: Pope, Alexandra
name: Scott, Douglas
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present an analysis of the X-ray properties of 35 submm galaxies(SMGs) in the CDF-N. Using a sample of robust 850micron-selected galaxies, with accurate positions from Spitzer and/or radio counterparts, we find 16 objects (45+/-8%) with significant X-ray detections in the 2Ms Chandra data. 6 of these SMGs (~17+/-6%) have measured X-ray luminosities or upper limits consistent with those expected based on the far-infrared (FIR) or radio-derived star formation rate (SFR), and hence with the X-rays coming solely from star formation. In another 7 sources (20+/-7%) a dominant AGN contribution to the X-ray emission is required, while in 3 more it is unclear whether stellar process or accretion are responsible. Stacking of the X-ray undetected SMGs reveals a highly significant detection. If due to star formation, this corresponds to an average X-ray derived SFR of ~150 Msun/yr. We deduce that the AGN fraction in SMGs based on X-ray observations is 20-29 (+/-7) %, which is towards the lower limit of previous estimates. Spectral analysis shows that in general the SMGs are not heavily obscured in the X-ray but most of the SMGs classfied as AGN show absorption with N_H in excess of 10^22 cm^-2. Of the secure AGN, the bolometric luminosity appears to be dominated by the AGN in only 3 cases. In ~85% of the SMGs, the X-ray spectrum effectively rules out an AGN contribution that dominates the bolometric emission, even if the AGN is Compton thick. The evidence therefore suggests that intense star formation accounts for both the FIR and X-ray emission in most SMGs. We argue that, rather than having an especially high AGN fraction or duty cycle, SMGs have a high X-ray detection rate at very faint fluxes partly because of their high star formation rates and, in rarer cases, because the submm emission is from an AGN.(abridged)
description: 12 pages, 5 figures, accepted for publication in MNRAS
title: Analogical Problem Solving: The Differential Impact of Type of Training, Amount of Practice, and Type of Analogy On Spontaneous Transfer
Creators: name: Ives, Dune E.
Publisher: name: Utah State University
Year: 1998

description: Research on analogical problem solving has delineated several factors that impact one's ability to spontaneously generate a correct solution strategy to a target problem. These factors include, but are not limited to, type of analogy provided to subjects (i.e., partial versus complete), the level of analogical problem-solving expertise, and the absence of or type of analogical problem-solving training (i.e., teacher-generated or learner-generated) provided to learners.
Recently, researchers have begun to focus on providing solvers with multiple practice opportunities and extending these opportunities over a systematically distributed period of time. When combined with analogical problem-solving training, these factors will augment the learner's ability to spontaneously generate a correct solution strategy to both complete and partial target problems.
Using an experimental design, the present study examined the differential effects of type of analogue (partial versus complete), type of training (teacher-generated, learner-generated, or no training), and length of training (condensed versus extended) on novice learners' ability to spontaneously generate correct solution strategies to two target problems.
Findings indicate that, on the complete target problem, regardless of training group membership, no effect over control group participants was found. Partial target problem results indicate a slight advantage for participating in the learner-generated extended training group over no training. Also on the partial target problem, a moderate advantage was found for participating in the learner-generated extended training group over the condensed training.
Limitations of the study, implications for educators, and recommendations for future studies are provided.
Atomic and Molecular Systems Driven by Intense Chaotic Light
Creators: name: Singh, Kamal P
name: Rost, Jan M
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We investigate dynamics of atomic and molecular systems exposed to intense, shaped chaotic fields and a weak femtosecond laser pulse theoretically. As a prototype example, the photoionization of a hydrogen atom is considered in detail. The net photoionization undergoes an optimal enhancement when a broadband chaotic field is added to the weak laser pulse. The enhanced ionization is analyzed using time-resolved wavepacket evolution and the population dynamics of the atomic levels. We elucidate the enhancement produced by spectrally-shaped chaotic fields of two different classes, one with a tunable bandwidth and another with a narrow bandwidth centered at the first atomic transition. Motivated by the large bandwidth provided in the high harmonic generation, we also demonstrate the enhancement effect exploiting chaotic fields synthesized from discrete, phase randomized, odd-order and all-order high harmonics of the driving pulse. These findings are generic and can have applications to other atomic and simple molecular systems.
description: 8 pages, 9 figures
An alternative strategy for industrial development in Bangladesh
Creators: name: Rahman, A K M Rezaur
Publisher: name: University Of Tasmania
Year: 2023

description: Industrialisation is an important component of development efforts. Because it enriches national wealth and income through exploitation of natural resources and utilization of the factors of production. Industrialisation, however, has to be conceived of within the framework of the development approach - the goal to be achieved. It varies from country to country and depends on objective conditions - the state of the economy, the factor endowments and above all on the appropriate policy framework. This study is intended to formulate an alternative strategy for development of industries in Bangladesh in the context of her development objectives. Bangladesh is a poor agricultural country having no significant resources other that its vast unemployed and underemployed manpower. Given the poverty dimension of the country, the development goal is to attain a level by which the basic needs of the people can be met. Industrial development can play a vital role in this regard. It can help reduce poverty by creation of off-farm employment opportunities and supply basic necessities of life through processing of primary products into value added consumer goods.
Deviation from the Cosmological Constant or Systematic Errors?
Creators: name: Qi, Shi
name: Lu, Tan
name: Wang, Fa-Yin
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Motivated by the fact that both SNe Ia and GRBs seem to prefer a dark energy EOS greater than -1 at redshifts $z \gtrsim 0.5$, we perform a careful investigation on this situation. We find that the deviation of dark energy from the cosmological constant at redshifts $z \gtrsim 0.5$ is large enough that we should pay close attention to it with future observational data. Such a deviation may arise from some biasing systematic errors in the handling of SNe Ia and/or GRBs or more interestingly from the nature of the dark energy itself.
description: 4 pages, 4 figures, added references
Population rate codes carried by mean, fluctuation and synchrony of neuronal firings
Creators: name: Hasegawa, Hideo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: A population of firing neurons is expected to carry information not only by mean firing rate but also by fluctuation and synchrony among neurons. In order to examine this possibility, we have studied responses of neuronal ensembles to three kinds of inputs: mean-, fluctuation- and synchrony-driven inputs. The generalized rate-code model including additive and multiplicative noise (H. Hasegawa, Phys. Rev. E {\bf 75} (2007) 051904) has been studied by direct simulations (DSs) and the augmented moment method (AMM) in which equations of motion for mean firing rate, fluctuation and synchrony are derived. Results calculated by the AMM are in good agreement with those by DSs. The independent component analysis (ICA) of our results has shown that mean firing rate, fluctuation (or variability) and synchrony may carry independent information in the population rate-code model. The input-output relation of mean firing rates is shown to have higher sensitivity for larger multiplicative noise, as recently observed in prefrontal cortex. A comparison is made between results obtained by the integrate-and-fire (IF) model and our rate-code model.
description: 20 pages, 10 figures, accepted in Physica A (revised version of arXiv:0706.3489)
title: The Effect of the Estimate of Resting Metabolic Rate on the Correlation Between Energy Expenditure as Estimated Using Self-Reports of Physical Activity and Food Intake Records in Older Adults
Creators: name: Hurd, Judy
Publisher: name: Utah State University
Year: 1998

description: This study measured total daily energy expenditure (TDEE) in adults at least 50 years of age. The goal was to determine the effect of the estimate of resting metabolic rate (RMR) on the relationship between energy expenditure estimates made using (a) self-reports of physical activity and (b) food intake records. The objectives were to determine if (a) RMR estimates based on body composition, body weight, and the 111 metabolic cart were strongly related to each other, and (b) TDEE estimates based on a 7- day physical activity diary and a 7-day food intake record were more strongly related to each other when an RMR was used that was based on body composition, body weight, or the met cart. This was a three-phase study.
In phases I and II, the Pearson r was computed for all combinations of methods. If r > .80, the most practical method for field use was used in the next phase. Phase I: Estimated body composition using bioimpedance (BIA), skinfold (SKF), and girth. Phase II: Measured RMR using a met cart and three equations. Phase III: Computed TDEE using the self-reports. The Pearson r was computed to determine which methods of estimating RMR resulted in the strongest relationships.
Forty-four older adults participated. Phase I: r = .88 for SKF, girth; r = .64 for SKF, BIA. Phase II: rs ranged from .47 to .59 between the met cart-RMR and all the other methods; rs ranged from .84 to .98 for the remaining methods. Phase III: r = .41 between the two estimates of TDEE that used a body weight -RMR; r = .59 between estimates using a met cart-RMR; and r = .58 between estimates using a body composition-RMR. Even though r = .59 and r = .58 are similar, the average individual difference between the two estimates for each participant was smaller for the metabolic cart- RMR (372 calories /day) than for the body composition-RMR (1,045 calories /day), which suggests that body composition is not as useful as a met cart when estimating TDEE for older adults. When estimating clients' daily calorie needs, health professionals ought to consider using a met cart to estimate RMR and TDEE instead of other methods.
Quantum chromodynamics at high energy and statistical physics
Creators: name: Munier, S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: When hadrons scatter at high energies, strong color fields, whose dynamics is described by quantum chromodynamics (QCD), are generated at the interaction point. If one represents these fields in terms of partons (quarks and gluons), the average number densities of the latter saturate at ultrahigh energies. At that point, nonlinear effects become predominant in the dynamical equations. The hadronic states that one gets in this regime of QCD are generically called ``color glass condensates''. Our understanding of scattering in QCD has benefited from recent progress in statistical and mathematical physics. The evolution of hadronic scattering amplitudes at fixed impact parameter in the regime where nonlinear parton saturation effects become sizable was shown to be similar to the time evolution of a system of classical particles undergoing reaction-diffusion processes. The dynamics of such a system is essentially governed by equations in the universality class of the stochastic Fisher-Kolmogorov-Petrovsky-Piscounov equation, which is a stochastic nonlinear partial differential equation. Realizations of that kind of equations (that is, ``events'' in a particle physics language) have the form of noisy traveling waves. Universal properties of the latter can be taken over to scattering amplitudes in QCD. This review provides an introduction to the basic methods of statistical physics useful in QCD, and summarizes the correspondence between these two fields and its theoretical and phenomenological implications.
description: 92 pages, review paper. v2: a few mistakes corrected at various places, some parts clarified. To be published in Phys. Rep
Photodisintegration of $^4$He into p+t
Creators: name: Nasseripour, R.
name: Berman, B. L.
name: Benmouna, N.
name: Ilieva, Y.
name: Laget, J. -M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The two-body photodisintegration of $^4$He into a proton and a triton has been studied using the CEBAF Large-Acceptance Spectrometer (CLAS) at Jefferson Laboratory. Real photons produced with the Hall-B bremsstrahlung-tagging system in the energy range from 0.35 to 1.55 GeV were incident on a liquid $^4$He target. This is the first measurement of the photodisintegration of $^4$He above 0.4 GeV. The differential cross sections for the $γ$$^4$He$\to pt$ reaction have been measured as a function of photon-beam energy and proton-scattering angle, and are compared with the latest model calculations by J.-M. Laget. At 0.6-1.2 GeV, our data are in good agreement only with the calculations that include three-body mechanisms, thus confirming their importance. These results reinforce the conclusion of our previous study of the three-body breakup of $^3$He that demonstrated the great importance of three-body mechanisms in the energy region 0.5-0.8 GeV .
description: 13 pages submitted in one tgz file containing 2 tex file and 22 postscrip figures
title: Assessing Mental Health of Native American Children: Relationship of Acculturation with Social, Emotional, and Behavioral Functioning
Creators: name: Morris, Christopher H.
Publisher: name: Utah State University
Year: 1998

description: The literature indicates that, in comparison to children of other ethnic minority groups, Native American children may be at greater risk for a variety of emotional and behavioral Ill disorders and negative psychosocial conditions. Many may also struggle to resolve issues related to cultural identity. Understanding how Native American children and families relate to the cultures within which they live is a critical aspect of preventing and treating childhood mental disorders. Although Native children and families face persistent social pressure to adapt to a multicultural world, no systematic research exists examining the relationship between families' experience of acculturation and their children's social, emotional, and behavioral functioning.
This study described features of acculturation among Native American children and families, and explored the relationship between these cultural features and children's functioning. The study relied primarily upon the perceptions of 186 children and parents from an American Indian tribe of the southwestern United States, each reporting on their own traditionalism, and their perceptions of the child's social-emotional competencies and problems. Child and parent perceptions were augmented by parent report of other family characteristics.
Consistent with the literature, factor analytic and psychometric findings indicated that traditionalism is a multidimensional construct that can be measured reliably among children and adults. These findings are especially significant because few psychometrically adequate instruments exist to assess traditionalism or acculturation among Native American children.
Few relationships were found between child emotional and behavioral problems and acculturation. A consistent pattern of relationships indicated an association of parent- and child-reported traditionalism with lower perceived levels of child social and behavioral competencies. Exceptions to this pattern included the tendency of children to see themselves as more socially competent if they were involved with traditional ceremonies. Parent reports indicated an association between biculturalism and positive perceptions of child competencies.
These findings must be cautiously interpreted in conjunction with the specific cultural and historical context of these families. Characteristics of the data placed some limits on multivariate analyses, and most study findings should be viewed as exploratory. Recommendations are included for further research required to adequately understand relationships between family acculturation and child functioning.
Study of the effect of underground drilling environments on the noise produced by percussive rock drills
Creators: name: Higginson, John Francis
Publisher: name: University of British Columbia
Year: 2011

description: The aim of the investigation is to identify and interrelate particular parameters that influence the magnitude of noise levels to which rock drillers are subjected. The percussive rock drill is known to be an excessively noisy machine. Currently, exhaust mufflers and other silencing devices are being developed but as yet acceptable noise levels have not been established. The definition of acceptable sound power levels for drills must recognize that the sound levels to which the drill operator is exposed are modified by the acoustic properties of the working environment. For the initial phase of the investigation a representative rock drill was selected as a noise source. Comparative sound levels generated by this machine were measured in a free field environment and in typical underground working places. Increases in the sound pressure levels in each octave band from 63 to 16,000 hertz were observed when the drill was operated in both stopes and drifts. For the subsequent phase of the investigation, studies were conducted on an assortment of commercially available rock drills. The changes in measured sound levels have been related to: the acoustic properties of the working place, the drill position relative to the walls, the length of drill steel exposed from the hole, and the drill air supply pressure. Based on the measurements taken throughout the investigation, sound pressure level correction factors are proposed. By applying these factors to sound levels generated under free field conditions, predictions of rock drill sound pressure levels present in underground working places can be made. In addition, when studies of rock drill noise levels in various operating configurations are being conducted, use of the factors permits reduction of observed sound level measurements to a common datum.
"Ich würde ja gern, bloss wann?" — Beratung als Zeitfresser?
Creators: name: Junker, Kathrin
name: Ebneter, Thomas
Publisher: name: Berner Fachhochschule BFH, Departement Soziale Arbeit
Year: 2025

description: Beratungen in der Sozialen Arbeit sind anspruchsvoll, befinden sich Klient*innen doch oft in komplexen und dynamischen Lebenslagen. Emotionale Belastungen erschweren Entwicklungen, und der Zeitmangel ist bei Fachkräften allgegenwärtig. Wie lässt sich dieser Ohnmacht begegnen? Die Systemische Beratung bietet Grundlagen und Methoden, um dieser Herausforderung zu begegnen.
Suzaku observation of the giant radio galaxy 3C 326
Creators: name: Isobe, Naoki
name: Tashiro, Makoto S.
name: Gandhi, Poshak
name: Hayato, Asami
name: Nagai, Hiroshi
name: Hada, Kazuhiro
name: Seta, Hiromi
name: Matsuta, Keiko
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: A Suzaku observation of a giant radio galaxy, 3C 326, which has a physical size of about 2 Mpc, was conducted on 2008 January 19 -- 21. In addition to several X-ray sources, diffuse emission was significantly detected associated with its west lobe, but the east lobe was contaminated by an unidentified X-ray source WARP J1552.4+2007. After careful evaluation of the X-ray and Non X-ray background, the 0.4 -- 7 keV X-ray spectrum of the west lobe is described by a power-law model. The photon index and 1 keV flux density was derived as $1.82_{-0.24}^{+0.26}\pm0.04$ and $19.4_{-3.2}^{+3.3}\pm 3.0$ nJy, respectively, where the first and second errors represent the statistical and systematic ones. The diffuse X-rays were attributed to be inverse Compton radiation by the synchrotron radio electrons scattering off the cosmic microwave background photons. This radio galaxy is the largest among those with lobes detected through inverse Compton X-ray emission. A comparison of the radio to X-ray fluxes yields the energy densities of electron and magnetic field as $u_e = (2.3 \pm 0.3 \pm 0.3) \times 10^{-13}$ ergs/cm3 and $u_m = (1.2_{-0.1}^{+0.2}\pm 0.2) \times 10^{-14}$ ergs/cm3, respectively. The galaxy is suggested to host a low luminosity nucleus with an absorption-corrected 2 -- 10 keV luminosity of $<2 \times 10^{42}$ ergs/s, together with a relatively weak radio core. The energetics in the west lobe of 3C 326 were compared with those of moderate radio galaxies with a size of $\sim 100$ kpc. The west lobe of 3C 326 is confirmed to agree with the correlations for the moderate radio galaxies, $u_e \propto D^{-2.2\pm0.4}$ and $u_m \propto D^{-2.4\pm0.4}$, where $D$ is their total physical size. This implies that the lobes of 3C 326 are still being energized by the jet, despite the current weakness of the nucleus.
description: 11 pages, 10 figures, 6 tables, Accepted for ApJ (v706 issue)
Additional file 1 of Differential chromatin accessibility landscape reveals structural and functional features of the allopolyploid wheat chromosomes
Creators: name: Jordan, Katherine W.
name: He, Fei
name: de Soto, Monica Fernandez
name: Akhunova, Alina
name: Akhunov, Eduard
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Table S1. Alignment Statistics for DNS-Seq. Table S2. Genome and Chromosome DNS Scores and Proportion of MSF/MRF regions. Table S3. Pericentromeric-Distal Comparisons of DNS Scores and Relative Fold Changes. Table S4. Homoeologous Chromosome Group 4 DNS Segment Comparison. Table S5. MSF and MRF Region Annotation. Table S6. Chromatin States DNS Scores and Outlier Overlap. Table S8. Comparison of DNS Scores for Triplets Around Genes. Table S9. TE Superfamily Correlations of DNS Score and TE Density. Table S11. Intergenic Distance Effect on DNS Score. Table S12. Centromere Mapping with DNS Score, Cereba Density, and Read Depth. Table S14. Phenotypic Variance by Region Summary. Figure S1. Correlation of DNS Scores and MRF/MSF outliers. Figure S2. Recombination Rate and DNS Score Correlation. Figure S3. DNS Score and Proportion of MRF/MSF regions for Homoeologous Chromosomes 1. Figure S4. DNS Score and Proportion of MRF/MSF regions for Homoeologous Chromosomes 2. Figure S5. DNS Score and Proportion of MRF/MSF regions for Homoeologous Chromosomes 3. Figure S6. DNS Score and Proportion of MRF/MSF regions for Homoeologous Chromosomes 4. Figure S7. DNS Score and Proportion of MRF/MSF regions for Homoeologous Chromosomes 5. Figure S8. DNS Score and Proportion of MRF/MSF regions for Homoeologous Chromosomes 6. Figure S9. DNS Score and Proportion of MRF/MSF regions for Homoeologous Chromosomes 7. Figure S10. MRF/MSF Outlier Region Descriptions Annotation. Figure S11. DNS Scores Around Genes by Genome. Figure S12. Categorized Syntenic Triplet Expression Contribution. Figure S13. DNS Scores for Common TE Superfamilies. Figure S14. DNS Scores by Family of Common TE Superfamilies. Figure S15. TE DNS Scores Relative to Gene Proximity. Figure S16. Intergenic Distance Distribution for Distal and Centromeric Regions. Figure S17. Sensitivity of Centromeric Chromatin to Differential MNase Digest.
title: Th Lp John ellipsoids for general measures
Creators: name: Ai, Wen
Publisher: name: Memorial University of Newfoundland
Year: 2021

description: This thesis aims to develop the Lp John ellipsoids related to general measures. Our Lp John ellipsoids contain many well-known ellipsoids constructed from given convex bodies as special cases, including but not limited to the classical John ellipsoid, the Lp John ellipsoid, the Lutwak-Yang-Zhang ellipsoid, the Petty ellipsoid, etc. Let μ be an α-homogeneous measure on Rn for α > 0. Our Lp John ellipsoids for the general measure μ for p > 0 are defined as the solutions to the following optimization problem: max V(E) subject to Vμ,p(K,E)≥μ(K), E∈ε₀n where E₀n denotes the set of all origin-symmetric ellipsoids, K is a compact convex set in Rn containing the origin in its interior, V is the volume function, and Vμ,p(K,E) = 1/αμ(K) [integral of] Sn⁻¹ hᴾE(v)dSμ,p(K,v), with hE the support function of E and dSμ,p(K,v) the Lp-surface μ-area measure of K. In this thesis, for p > 0, we establish the existence and uniqueness of the Lp John ellipsoid for μ. A characterization of the Lp John ellipsoid for μ is obtained. We also investigate the case for p = 0, which is related to the logarithmic function. Besides, the inclusion for the Lp John ellipsoid for μ is provided. The convex bodies with identical John and Lp John ellipsoids for the general measure μ are characterized. Finally, we provide a study for another arguably more general family of Lp John ellipsoids, defined in a way similar to the one in (1) but with Vμ,p(K,E) replaced by [integral of] Sn⁻¹ hᴾE(v)dv(v) and with μ(K) replaced by v(Sn⁻¹), respectively.
Qubit Coherent Control with Squeezed Light Fields
Creators: name: Shahmoon, Ephraim
name: Levit, Shimon
name: Ozeri, Roee
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the use of squeezed light for qubit coherent control and compare it with the coherent state control field case. We calculate the entanglement between a short pulse of resonant squeezed light and a two-level atom in free space and the resulting operation error. We find that the squeezing phase, the phase of the light field and the atomic superposition phase, all determine whether atom-pulse mode entanglement and the gate error are enhanced or suppressed. However, when averaged over all possible qubit initial states, the gate error would not decrease by a practicably useful amount and would in fact increase in most cases. We discuss the possibility of measuring the increased gate error as a signature of the enhancement of entanglement by squeezing.
description: 12 pages, 6 figures
The effects of polyacrylamide flocculants on sulphide flotation and flotation tailings
Creators: name: Vreugde, Morris Johannes Aloysius
Publisher: name: University of British Columbia
Year: 2011

description: The relative effectiveness of anionic and nonionic polyacrylamide in enhancing the settling rate of flotation tailings was studied by performing batch settling tests. Anionic polyacrylamide was found to be more effective than nonionic polyacrylamide. A liquid flocculant was found to give lower settling rates than dry flocculants due to a lower polyacrylamide content. The aging of tailings resulted in increased settling rates. Residual polyacrylamide was detected in the supernatant water even at low flocculant addition rates and reached significant concentrations before the optimum addition rate was attained. The effect of polyacrylamide on flotation of a copper-molybdenum ore was investigated in a series of batch flotation tests. Flocculant concentrations up to 10 parts per million did not lower either concentrate grade or recovery. The presence of an oil phase from the liquid flocculant also had no noticeable effect on flotation.
Phase transitions in swarming systems: A recent debate
Creators: name: Aldana, M.
name: Larralde, H.
name: Vázquez, B.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this work we consider the phase transition from ordered to disordered states that occur in the Vicsek model of self-propelled particles. This model was proposed to describe the emergence of collective order in swarming systems. When noise is added to the motion of the particles, the onset of collective order occurs through a dynamical phase transition. Based on their numerical results, Vicsek and his colleagues originally concluded that this phase transition was of second order (continuous). However, recent numerical evidence seems to indicate that the phase transition might be of first order (discontinuous), thus challenging Vicsek's original results. In this work we review the evidence supporting both aspects of this debate. We also show new numerical results indicating that the apparent discontinuity of the phase transition may in fact be a numerical artifact produced by the artificial periodicity of the boundary conditions.
description: 18 pages, 16 figures
ثورة علمية لا يمكن وقفها قادمة مثل تسونامي. (Arabic Version) An unstoppable scientific revolution is coming like a tsunami.
Creators: name: Waugh, Subhajit
Publisher: name: Zenodo
Year: 2023

description: واجه العلماء تحديًا متكررًا منذ 9 ديسمبر 2022 من خلال نظرية جديدة توحد ركائز الفيزياء. إنها "نظرية كل شيء". وسكت العلماء (وهو نصف الموافقة). إما أن تقبل التحدي أو النظرية.
Comparing X-ray and Dynamical Mass Profiles in the Early-Type Galaxy NGC 4636
Creators: name: Johnson, Ria
name: Chakrabarty, Dalia
name: O'Sullivan, Ewan
name: Raychaudhury, Somak
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the results of an X-ray mass analysis of the early-type galaxy NGC 4636, using Chandra data. We have compared the X-ray mass density profile with that derived from a dynamical analysis of the system's globular clusters (GCs). Given the observed interaction between the central active galactic nucleus and the X-ray emitting gas in NGC 4636, we would expect to see a discrepancy in the masses recovered by the two methods. Such a discrepancy exists within the central ~10kpc, which we interpret as the result of non-thermal pressure support or a local inflow. However, over the radial range ~10-30kpc, the mass profiles agree within the 1-sigma errors, indicating that even in this highly disturbed system, agreement can be sought at an acceptable level of significance over intermediate radii, with both methods also indicating the need for a dark matter halo. However, at radii larger than 30kpc, the X-ray mass exceeds the dynamical mass, by a factor of 4-5 at the largest disagreement. A Fully Bayesian Significance Test finds no statistical reason to reject our assumption of velocity isotropy, and an analysis of X-ray mass profiles in different directions from the galaxy centre suggests that local disturbances at large radius are not the cause of the discrepancy. We instead attribute the discrepancy to the paucity of GC kinematics at large radius, coupled with not knowing the overall state of the gas at the radius where we are reaching the group regime (>30kpc), or a combination of the two.
description: 16 pages, 14 figures; accepted for publication in ApJ
Integrable Inhomogeneous Spin Chains in Generalized Lunin-Maldacena Backgrounds
Creators: name: Lazo, Matheus Jatkoske
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We obtain through a Matrix Product Ansatz the exact solution of the most general inhomogeneous spin chain with nearest neighbor interaction and with $U(1)^2$ and $U(1)^3$ symmetries. These models are related to the one loop mixing matrix of the Leigh-Strassler deformed N=4 SYM theory, dual to type IIB string theory in the generalized Lunin-Maldacena backgrounds, in the sectors of two and three kinds of fields, respectively. The solutions presented here generalizes the results obtained by the author in a previous work for homogeneous spins chains with $U(1)^N$ symmetries in the sectors of N=2 and N=3.
description: Change in references. Talk given at II Latin American Workshop on High Energy Phenomenology and published in Brazilian Journal of Physics, vol. 38, no. 3B, September, 2008
Matter Bounce in Horava-Lifshitz Cosmology
Creators: name: Brandenberger, Robert
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Horava-Lifshitz gravity, a recent proposal for a UV-complete renormalizable gravity theory, may lead to a bouncing cosmology. In this note we argue that Horava-Lifshitz cosmology may yield a concrete realization of the matter bounce scenario, and thus give rise to an alternative to inflation for producing a scale-invariant spectrum of cosmological perturbations. In this scenario, quantum vacuum fluctuations exit the Hubble radius in the pre-bounce phase and the spectrum is transformed into a scale-invariant one on super-Hubble scales before the bounce because the long wavelength modes undergo squeezing of their wave-functions for a longer period of time than shorter wavelength modes. The scale-invariance of the spectrum of curvature fluctuations is preserved during and after the bounce. A distinctive prediction of this scenario is the amplitude and shape of the bispectrum.
description: 6 pages, 1 figure, a couple of minor wording changes
Initiating a morbidity service into the public health nursing student's rural practice experience, and The staff conference as a method of administration in a county health unit
Creators: name: Payton, Margaret L.
Publisher: name: University of Oregon
Year: 1938
Subjects: Public Health Nursing
Rural Nursing
Public Health Practice
Rural Health Services

description: This paper discusses the possibility of including morbidity service in the public health nursing student's rural practice experience, and well as using the staff conference as a method of administration in a county health unit.
ENLIGHT RISE - Deliverable 9.2 - Project Management Handbook – Guidelines on project management procedures
Creators: name: ENLIGHT RISE WP9 - Management, Dissemination and Exploitation
Publisher: name: Zenodo
Year: 2023
Subjects: European universities alliance

description: Guidelines on project management procedures : internal project activity monitoring, quality process for deliverables publication, decision-making process and governance, risk monitoring and management. 

 

Version approved by the European Commission.
Dirac Equation in Noncommutative Space for Hydrogen Atom
Creators: name: Adorno, T. C.
name: Baldiotti, M. C.
name: Chaichian, M.
name: Gitman, D. M.
name: Tureanu, A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the energy levels of a hydrogen-like atom in the framework of $θ$-modified, due to space noncommutativity, Dirac equation with Coulomb field. It is shown that on the noncommutative (NC) space the degeneracy of the levels $2S_{1/2}, 2P_{1/2}$ and $ 2P_{3/2}$ is lifted completely, such that new transition channels are allowed.
description: 9 pages, 1 figure; typos corrected