cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Canonical variables and analysis on so(n,2)
Creators: name: Feinsilver, Ph.
name: Giering, M.
name: Kocik, J.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Mathematical Physics (math-ph)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 81R05, 17B81

description: The approach of Berezin to the quantization of so(n,2) via generalized coherent states is considered in detail. A family of n commuting observables is found in which the basis for an associated Fock-type representation space is expressed. An interesting feature is that computations can be done by explicit matrix calculations in a particular basis. The basic technical tool is the Leibniz function, the inner product of coherent states.
description: 15 pages, LaTeX
Carex bequaertii De Wild.
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Cyperaceae
Carex
Carex bequaertii

description: Carex bequaertii De Wild.  —
Habit: Herb.
Habitat: LMWF, BZ, UMF, HZ; 1 900–3 600 m. Distribution: II.
 Voucher: Timau Track, Alt. 3 421 m, 21 Jan. 2015, SAJIT 002758 (HIB).
 References: Hoensellaar et al. (2010), Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 31, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Bosonic formula for level-restricted paths
Creators: name: Schilling, Anne
name: Shimozono, Mark
Publisher: name: arXiv
Year: 1998
Subjects: subject: Quantum Algebra (math.QA)
subject: Combinatorics (math.CO)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 05E15, 81R10, 81R50 (Primary) 82B23 (Secondary)

description: We prove a bosonic formula for the generating function of level-restricted paths for the infinite families of affine Kac-Moody algebras. In affine type A this yields an expression for the level-restricted generalized Kostka polynomials.
description: 16 pages, AMS-LaTeX, style file axodraw.sty required; Lemma 4 extended to include perfect crystals of level 2
Assisted Tachyonic Inflation
Creators: name: Piao, Yun-Song
name: Cai, Rong-Gen
name: Zhang, Xinmin
name: Zhang, Yuan-Zhong
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Condensed Matter (cond-mat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The model of inflation with a single tachyon field generates larger anisotropy and has difficulties in describing the formation of the Universe . In this paper we consider a model with multi tachyon fields and study the assisted inflationary solution. Our results show that this model satisfies the observation.
description: 5 pages, no figures, a revised version and reference added
Flat wormholes from straight cosmic strings
Creators: name: Clement, Gerard
Publisher: name: arXiv
Year: 1997
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We describe the analytical extension of certain static cylindrical multi--cosmic string metrics to wormhole spacetimes with only one region at spatial infinity, and investigate in detail the geometry of asymptotically Minkowskian wormhole spacetimes generated by one or two cosmic strings. We find that such wormholes tend to lengthen rather than shorten space travel. Possible signatures of these wormholes are briefly discussed.
description: latex file, 22 pages, 10 latex (bezier) figures
Poor and Working-Class Clients' Social Class-Related Experiences in Therapy
Creators: Appio, Lauren Marie
Publisher: name: Columbia University
Year: 2013
Subjects: Counseling psychology

description: This investigation explored how poor and working-class people experience, understand, and negotiate class issues and class differences with their therapists. Data were collected through semi-structured interviews with 22 self-identified poor and working-class people with experience as clients in individual counseling. Interviews were transcribed and analyzed using constructivist grounded theory methodology (Charmaz, 2006). A core narrative emerged that depicted a dynamic, interactional process of seeking mutual understanding to navigate class issues in therapy. Participants played an active role in this process by making decisions to share or withhold information or their reactions to therapy experiences. Participants' sociocultural awareness provided the context for their observations of class cues and perceptions of therapists' social class, which in turn influenced their reactions and behaviors towards their therapist. Seeking mutual understanding emerged as a process that allowed poor and working-class clients to build connections with therapists of shared and different social class backgrounds. Participants shared positive, meaningful interactions with therapists who demonstrated genuineness and attended to class issues in the therapeutic encounter. When working with therapists who engaged in these mutuality-enhancing actions, participants felt deeply understood and connected to their therapists, which contributed to growthful therapeutic outcomes. Participants also described feeling misunderstood and disconnected from therapists who appeared inauthentic and neglected to attend to class issues. These participants reported feeling "stuck" and unhelped through counseling. The findings of this study suggest that social class issues are salient for poor and working-class clients in their interactions with therapists. Further, therapists can promote positive therapeutic outcomes in work with class-oppressed clients by a) fostering authenticity and mutuality within the working alliance and b) openly addressing clients' material concerns and thoughtfully exploring class differences and other class issues present in the therapeutic relationship. Additional implications for training and practice are provided and include the need for counselors to incorporate social justice advocacy into their work. Suggestions for future research include further exploration of the ways social class and classism operate within the psychotherapeutic process, emphasizing the need for researchers to attend to intersections of identity and position poor and working-class people's voices and perspectives at the center of their inquiry.
A Qualitative Description of Millennial Nurse Administrators’ Perspectives on Leadership and their Practice Environment
Creators: name: Lamasan, John Ian
Publisher: name: figshare
Year: 2020
Subjects: subject: 111709 Health Care Administration
subject: FOS: Health sciences
subject: 119999 Medical and Health Sciences not elsewhere classified
subject: FOS: Other medical sciences

description: ABSTRACTIntroduction: Millennial nurses are beginning to accept leadership roles and will soon take over governance in the nursing profession and healthcare industry. This study aimed to describe the perspectives on leadership and their practice environment of millennial nurse administrators working in tertiary hospitals in Iloilo City, Philippines. Methods: Eight (8) millennial nurse administrators were purposively chosen. Through a qualitative descriptive inquiry by Sandelowski (2000), data were gathered using semi-structured interviews and analyzed employing qualitative content analysis. Results: Twelve (12) meaningful categories were derived directly from the interview transcripts. Millennial nurse administrators perceive leadership by way of (1) directing, (2) guiding, (3) empowering and (4) modeling to staff. They viewed their practice environment as (5) having a harmonious relationship while (6) maintaining professional relationship among the healthcare team members, (7) upholding standards and (8) ensuring client satisfaction as a measure of quality care. Millennial nurse administrators shared feelings of being (9) overwhelmed at the start yet (10) fulfilling in the end. Lastly, they had challenges in (11) dealing with older staff and in (12) assuming the full responsibility and accountability of their unit. Conclusions: Considering the complexities in the healthcare profession, millennial nurse administrators cope with the responsibilities brought by their position as major key players to ensure that unit operations abide with practice standards. Millennial nurse administrators must be provided with understanding, support, and mentoring, to enhance their leadership competencies as they progress into higher leadership positions.
226-1996-1-PB.pdf
Creators: name: Oducado, Ryan Michael
name: Lamasan, John Ian
Publisher: name: figshare
Year: 2019
Subjects: subject: 111709 Health Care Administration
subject: FOS: Health sciences
subject: 119999 Medical and Health Sciences not elsewhere classified
subject: FOS: Other medical sciences

description: ABSTRACTIntroduction: Millennial nurses are beginning to accept leadership roles and will soon take over governance in the nursing profession and healthcare industry. This study aimed to describe the perspectives on leadership and their practice environment of millennial nurse administrators working in tertiary hospitals in Iloilo City, Philippines. Methods: Eight (8) millennial nurse administrators were purposively chosen. Through a qualitative descriptive inquiry by Sandelowski (2000), data were gathered using semi-structured interviews and analyzed employing qualitative content analysis. Results: Twelve (12) meaningful categories were derived directly from the interview transcripts. Millennial nurse administrators perceive leadership by way of (1) directing, (2) guiding, (3) empowering and (4) modeling to staff. They viewed their practice environment as (5) having a harmonious relationship while (6) maintaining professional relationship among the healthcare team members, (7) upholding standards and (8) ensuring client satisfaction as a measure of quality care. Millennial nurse administrators shared feelings of being (9) overwhelmed at the start yet (10) fulfilling in the end. Lastly, they had challenges in (11) dealing with older staff and in (12) assuming the full responsibility and accountability of their unit. Conclusions: Considering the complexities in the healthcare profession, millennial nurse administrators cope with the responsibilities brought by their position as major key players to ensure that unit operations abide with practice standards. Millennial nurse administrators must be provided with understanding, support, and mentoring, to enhance their leadership competencies as they progress into higher leadership positions.
An ultrapower construction of the multiplier algebra of a $C^{\ast}$-algebra and an application to boundary amenability of groups
Creators: name: Poggi, Facundo
name: Sasyk, Roman
Publisher: name: arXiv
Year: 2019
Subjects: subject: Operator Algebras (math.OA)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 46L05, 03C20, 20F65

description: Using ultrapowers of $C^{\ast}$-algebras we provide a new construction of the multiplier algebra of a $C^{\ast}$-algebra. This extends the work of Avsec and Goldbring [Houston J. Math., to appear, arXiv:1610.09276.] to the setting of noncommutative and nonseparable $C^{\ast}$-algebras. We also extend their work to give a new proof of the fact that groups that act transitively on locally finite trees with boundary amenable stabilizers are boundary amenable.
description: v.3: Final version, appeared in Advances in Operator Theory. New title and new section on boundary amenability of groups added to accommodate a request of the referee. In order to improve the exposition, some other small changes were made
Regular nilpotent elements and quantum groups
Creators: name: Sevostyanov, A.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Quantum Algebra (math.QA)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 17B37 (Primary) 05E05 (Secondary)

description: We suggest new realizations of quantum groups corresponding to complex simple Lie algebras, and of affine quantum groups. These new realizations are labeled by Coxeter elements of the corresponding Weyl group and have the following key feature: The natural counterparts of the subalgebras U(n), where n is a maximal nilpotent subalgebra in g, possess non--singular characters.
description: 23 pages, LaTeX 2e
Gate tunable quantum Hall effects in defect-suppressed Bi2Se3 films
Creators: name: Koirala, N.
name: Salehi, M.
name: Moon, J.
name: Oh, S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Despite many years of efforts, attempts to reach the quantum regime of topological surface states (TSS) on an electrically tunable topological insulator (TI) platform have so far failed on binary TI compounds such as Bi2Se3 due to high density of interfacial defects. Here, utilizing an optimal buffer layer on a gatable substrate, we demonstrate the first electrically tunable quantum Hall effects (QHE) on TSS of Bi2Se3. On the n-side, well-defined QHE shows up, but it diminishes near the charge neutrality point (CNP) and completely disappears on the p-side. Furthermore, around the CNP the system transitions from a metallic to a highly resistive state as the magnetic field is increased, whose temperature dependence indicates presence of an insulating ground state at high magnetic fields.
description: 4 figures
Carex chlorosaccus C. B. Clarke
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Cyperaceae
Carex
Carex chlorosaccus

description: Carex chlorosaccus C.B.Clarke  —
Habit: Herb.
Habitat: LMWF, LMDF, BZ, UMF, HZ; up to 3 300 m. Distribution: II.
 Voucher: Chogoria Track, Alt. 2 872 m, 27 Jan. 2015, SAJIT 002886 (HIB).
References: Fries & Fries (1925), Bussmann (1993, 1994), Bussmann & Beck (1995a, 1998), Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 31, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Buckibrotica Bechyne & Bechyne 1969
Creators: name: Viswajyothi, Keezhpattillam
name: Clark, Shawn M.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Chrysomelidae
Buckibrotica

description: Genus Buckibrotica Bechyné & Bechyné, 1969
Buckibrotica Bechyné & Bechyné, 1969: 29 (type species Diabrotica cinctipennis Baly, 1886, by original designation).
Remarks
This genus contains only one described species, B. cinctipennis (Baly, 1886) from South America. See Fig. 83 for a habitus illustration.
description: Published as part of Viswajyothi, Keezhpattillam & Clark, Shawn M., 2022, New World genera of Galerucinae Latreille, 1802 (tribes Galerucini Latreille, 1802, Metacyclini Chapuis, 1875, and Luperini Gistel, 1848): an annotated list and identification key (Coleoptera: Chrysomelidae), pp. 1-102 in European Journal of Taxonomy 842 on page 19, DOI: 10.5852/ejt.2022.842.1945, http://zenodo.org/record/7222499
A Qualitative Description of Millennial Nurse Administrators’ Perspectives on Leadership and their Practice Environment
Creators: name: Oducado, Ryan Michael
name: Lamasan, John Ian
Publisher: name: figshare
Year: 2019
Subjects: subject: 111709 Health Care Administration
subject: FOS: Health sciences
subject: 119999 Medical and Health Sciences not elsewhere classified
subject: FOS: Other medical sciences

description: ABSTRACTIntroduction: Millennial nurses are beginning to accept leadership roles and will soon take over governance in the nursing profession and healthcare industry. This study aimed to describe the perspectives on leadership and their practice environment of millennial nurse administrators working in tertiary hospitals in Iloilo City, Philippines. Methods: Eight (8) millennial nurse administrators were purposively chosen. Through a qualitative descriptive inquiry by Sandelowski (2000), data were gathered using semi-structured interviews and analyzed employing qualitative content analysis. Results: Twelve (12) meaningful categories were derived directly from the interview transcripts. Millennial nurse administrators perceive leadership by way of (1) directing, (2) guiding, (3) empowering and (4) modeling to staff. They viewed their practice environment as (5) having a harmonious relationship while (6) maintaining professional relationship among the healthcare team members, (7) upholding standards and (8) ensuring client satisfaction as a measure of quality care. Millennial nurse administrators shared feelings of being (9) overwhelmed at the start yet (10) fulfilling in the end. Lastly, they had challenges in (11) dealing with older staff and in (12) assuming the full responsibility and accountability of their unit. Conclusions: Considering the complexities in the healthcare profession, millennial nurse administrators cope with the responsibilities brought by their position as major key players to ensure that unit operations abide with practice standards. Millennial nurse administrators must be provided with understanding, support, and mentoring, to enhance their leadership competencies as they progress into higher leadership positions.
Discussion regulatory compliance strategies to achieve receiving water quality standards using selenium reduction/removal options
Creators: name: Adams, D. J.
name: Clark, J. P.
name: Opara, A.
name: Peoples, M. J.
Publisher: name: The University of British Columbia
Year: 2013

description: Achieving local regulatory Receiving Water Quality Standards for selenium [Se] (e.g. 2 μg/L in BC, Canada) at some proposed and existing mines requires Selenium Management Plans (SMPs) that demonstrate convincing and effective environmental protection to regulators. This impacts: (a) new mines proceeding through an Environmental Assessment (EA) process with predicted elevated selenium (Se) discharges; and (b) for existing mines with elevated Se discharges, to demonstrate future downstream Se-compliance needed to avoid regulatory permit non-compliance penalties. Unlike traditional heavy metal solubility equilibrium/precipitation, Se is usually controlled by redox conditions, pH, biological activity, and adsorption/desorption reactions. The geochemical characteristics of Se and its relationship with co-contaminants, such as nitrate, should guide approaches for developing effective SMPs. Approaches should consider augmenting mine site active selenium discharge treatments with a combination of: (1) indirect Se treatment strategies that will reduce active water treatment hydraulic retention times by removing co-contaminants; and (2) release prevention, handling seleniferous overburden to reduce weathering and runoff volumes requiring direct Se water treatment. It is expected that these types of mining practices can reduce Se environmental loads, as compared to past, historical mining operations. This analysis should be presented in the EA and permitting processes. Bench- and pilot-scale testing of selenium treatment technologies help put into perspective the importance of site-specific influences on implementation of economical and effective selenium management approaches and treatments, and provides a robust basis for a SMP to be developed for the EA and permitting processes. Preventative or reduction procedures, in situ treatment, semi-passive treatments, and active selenium water treatment technologies to remove selenium to below 5 μg/L (or the local regulatory discharge standard) are discussed in terms of compliance approaches that will maximize the amount of clean water returned to watersheds and reduce or eliminate non-compliance.
Planar master integrals for four-loop form factors
Creators: name: von Manteuffel, Andreas
name: Schabinger, Robert M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present the complete set of planar master integrals relevant to the calculation of three-point functions in four-loop massless Quantum Chromodynamics. Employing direct parametric integrations for a basis of finite integrals, we give analytic results for the Laurent expansion of conventional integrals in the parameter of dimensional regularization through to terms of weight eight.
description: 15 pages, 2 figures, 1 table; in v2: incorporated referee suggestions in text, all equations and results unchanged. v2 is the version published in JHEP
Image-potential-induced states at metal surfaces
Creators: name: Echenique, P. M.
name: Pitarke, J. M.
name: Chulkov, E. V.
name: Silkin, V. M.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The unequivocal observation in the early 1980s of a new class of unnocupied surface states that are bound to the vacuum level of a variety of metal surfaces has led over the last two decades to an active area of research in condensed-matter and surface physics. We discuss the key ingredients of the theory of these so-called image states, which have their origin in the long range nature of the image potential outside a solid.
description: 11 pages, 3 figures, to appear in J. Electron Spectrosc
Exact Semiclassical Evolutions in Relativistic and Nonrelativistic Scalar Quantum Mechanics and Quantum Cosmology
Creators: name: Mostafazadeh, Ali
Publisher: name: arXiv
Year: 1997
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The necessary and sufficient conditions for the exactness of the semiclassical approximation for the solution of the Schrödinger and Klein-Gordon equations are obtained. It is shown that the existence of an exact semiclassical solution of the Schrödinger equation determines both the semiclassical wave function and the interaction potential uniquely up to the choice of the boundary conditions. This result also holds for the Klein-Gordon equation. Its implications for the solution of the Wheeler-DeWitt equation for the FRW scalar field minisuperspace models are discussed. In particular, exact semiclassical solutions of the Wheeler-DeWitt equation for the case of massless scalar field and exponential matter potentials are constructed. The existence of exact semiclassical solutions for polynomial matter potentials of the form $λϕ^{2p}$ is also analyzed. It is shown that for p=1, 2 and 3, right-going semiclassical solutions do not exist. A generalized semiclassical perturbation expansion is also developed which is quite different from the traditional $\hbar$ and $M_p^{-1}$-expansions.
description: Few minor corrections
On first-order expressibility of satisfiability in submodels
Creators: name: Saveliev, Denis I.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03C40, 03C75, 03C85 (Primary), 03B45, 03C07, 03C20, 03E55 (Secondary)

description: Let $κ,λ$ be regular cardinals, $λ\leκ$, let $φ$ be a sentence of the language $\mathcal L_{κ,λ}$ in a given signature, and let $\vartheta(φ)$ express the fact that $φ$ holds in a submodel, i.e., any model $\mathfrak A$ in the signature satisfies $\vartheta(φ)$ if and only if some submodel $\mathfrak B$ of $\mathfrak A$ satisfies $φ$. It was shown in [1] that, whenever $φ$ is in $\mathcal L_{κ,ω}$ in the signature having less than $κ$ functional symbols (and arbitrarily many predicate symbols), then $\vartheta(φ)$ is equivalent to a monadic existential sentence in the second-order language $\mathcal L^{2}_{κ,ω}$, and that for any signature having at least one binary predicate symbol there exists $φ$ in $\mathcal L_{ω,ω}$ such that $\vartheta(φ)$ is not equivalent to any (first-order) sentence in $\mathcal L_{\infty,ω}$. Nevertheless, in certain cases $\vartheta(φ)$ are first-order expressible. In this note, we provide several (syntactical and semantical) characterizations of the case when $\vartheta(φ)$ is in $\mathcal L_{κ,κ}$ and $κ$ is $ω$ or a certain large cardinal.
Carex clavata Thunb.
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Cyperaceae
Carex
Carex clavata

description: Carex clavata Thunb.  —
Habit: Herb.
Habitat: BZ, UMF, HZ; 1 400–3 100 m. Distribution: II.
 Voucher: Rotundu, Alt. 3 100 m, 25 Sep. 1997, Luke & Luke 4777 (EA).
References: Bussmann (1993, 1994).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 31, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Using the Life Grid Interview Technique in Science Education Research
Creators: name: Rowland, Ashley A.
name: Dounas-Frazer, Dimitri R.
name: Ríos, Laura
name: Lewandowski, H. J.
name: Corwin, Lisa A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: Background: Qualitative interviewing is a common tool that has been utilized by Science, Technology, Engineering, and Mathematics (STEM) education researchers to explore and describe the experiences of students, educators, or other educational stakeholders. Some interviewing techniques use co-creation of an artifact, such as a personal timeline, as a unique way to elicit a detailed narrative from a respondent. The purpose of this commentary is to describe an interview artifact called a life grid. First used and validated in medical sociology to conduct life course research, we adapted the life grid for use in research on undergraduate STEM education. We applied the life grid interview technique to two contexts: 1) students in an advance degree program reflecting on their entire undergraduate career as a biology major, and 2) students in an undergraduate physics program reflecting on a multi-week lab project. Results: We found that the life grid supported four important attributes of an interview: facilitation of the respondents' agency, establishment of rapport between interviewers and respondents, enhanced depth of the respondents' narratives, and the construction of more accurate accounts of events. We situate our experiences with respect to those attributes and compare them with the experiences detailed in literature. Conclusions: We conclude with recommendations for future use of the life grid technique in undergraduate STEM education research. Overall, we find the life grid to be a valuable tool to use when conducting interviews about phenomena with a chronological component.
description: 39 pages, 2 tables, 2 supplementary tables; submitted to Int. J. STEM Educ
Is there no quantum form of Einstein Gravity?
Creators: name: Shiekh, A. Y.
Publisher: name: arXiv
Year: 1996
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is well known that Einstein gravity is non-renormalizable; however this does not preclude the existence of a quantum form.
description: 10 pages LaTeX, used epsf.tex, Plenary review given at the XIX International Workshop on High Energy Physics and Field Theory, June 25 - 27, Protvino, Russia
Charged and neutral fixed points in the O(N)+O(N)-model with Abelian gauge fields
Creators: name: Beekman, Aron J.
name: Fejős, Gergely
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the Abelian-Higgs model, or Ginzburg-Landau model of superconductivity, the existence of an infrared stable charged fixed point ensures that there is a parameter range where the superconducting phase transition is second order, as opposed to fluctuation-induced first order as one would infer from the Coleman-Weinberg mechanism. We study the charged and neutral fixed points of a two-field generalization of the Abelian-Higgs model, where two N-component fields are coupled to two gauge fields and to each other, using the functional renormalization group. Focusing mostly on three dimensions, in the neutral case, this is a model for two-component Bose-Einstein condensation, and we confirm the fixed-point structure established in earlier works using different methods. The charged model is a dual theory of two-dimensional dislocation-mediated quantum melting. We find the existence of three charged fixed points for all N>2, while there are additional fixed points for N=2.
description: RevTeX. 14 pages, 4 figures. Matches published version
Methodology, Acknowledgments, Quantification of beads and lipids inside macrophages and Derivation and analysis of a coagulation-fragmentation model of substance accumulation in macrophages from Efferocytosis perpetuates substance accumulation inside macrophage populations
Creators: name: Ford, Hugh Z.
name: Zeboudj, Lynda
name: Purvis, Gareth S. D.
name: Bokum, Annemieke Ten
name: Zarebski, Alexander E.
name: Bull, Joshua A.
name: Byrne, Helen M.
name: Myerscough, Mary R.
name: Greaves, David R.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Cell Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: 60114 Systems Biology
subject: FOS: Biological sciences

description: Supplementary Material
Decomposition of the Height Function of Scherk's First Surface
Creators: name: Kamien, Randall D.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Mathematical Physics (math-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We show that Scherk's first surface, a one-parameter family of solutions to the minimal surface equation, may be written as a linear superposition of other solutions with specific parametric values.
description: Corrected typos, version to be published, 5 pages, harvmac
Degrees of Laziness in Grounding: Effects of Lazy-Grounding Strategies on ASP Solving
Creators: name: Taupe, Richard
name: Weinzierl, Antonius
name: Friedrich, Gerhard
Publisher: name: arXiv
Year: 2019
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: The traditional ground-and-solve approach to Answer Set Programming (ASP) suffers from the grounding bottleneck, which makes large-scale problem instances unsolvable. Lazy grounding is an alternative approach that interleaves grounding with solving and thus uses space more efficiently. The limited view on the search space in lazy grounding poses unique challenges, however, and can have adverse effects on solving performance. In this paper we present a novel characterization of degrees of laziness in grounding for ASP, i.e. of compromises between lazily grounding as little as possible and the traditional full grounding upfront. We investigate how these degrees of laziness compare to each other formally as well as, by means of an experimental analysis using a number of benchmarks, in terms of their effects on solving performance. Our contributions are the introduction of a range of novel lazy grounding strategies, a formal account on their relationships and their correctness, and an investigation of their effects on solving performance. Experiments show that our approach performs significantly better than state-of-the-art lazy grounding in many cases.
Carex cognata Kunth
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Cyperaceae
Carex
Carex cognata

description: Carex cognata Kunth  —
Habit: Herb.
Habitat: AZ; 3 700–3 900 m. Distribution: II.
 Voucher: Naro Moru Track, Alt. 3 845 m, 3 Oct. 2004, Muasya & Gehrke BG-Af063 (EA).
References: Bussmann (1993, 1994).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 31, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Green function on the quantum plane
Creators: name: Ahmedov, H.
name: Duru, I. H.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: Green function (which can be called the q-analogous of the Hankel function) on the quantum plane E_q^2= E_q(2)/U(1) is constructed.
description: 8 pages
Early Cosmological Evolution of Primordial Electromagnetic Fields
Creators: name: Kobayashi, Takeshi
name: Sloth, Martin S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is usually assumed that when Weyl invariance is unbroken in the electromagnetic sector, the energy density of primordial magnetic fields will redshift as radiation. Here we show that primordial magnetic fields do not exhibit radiation-like redshifting in the presence of stronger electric fields, as a consequence of Faraday's law of induction. In particular for the standard Maxwell theory, magnetic fields on super-horizon scales can redshift as $B^2 \propto a^{-6} H^{-2}$, instead of the usually assumed $a^{-4}$. Taking into account this effect for inflationary magnetogenesis can correct previous estimates of the magnetic field strength by up to 37 orders of magnitude. This opens new possibilities for inflationary magnetogenesis, and as an example we propose a scenario where femto-Gauss intergalactic magnetic fields are created on Mpc scales, with high-scale inflation producing observable primordial gravitational waves, and reheating happening at low temperatures.
description: 26 pages, 2 figures; v2: published in PRD
Knot complexity and the probability of random knotting
Creators: name: Shimamura, Miyuki K.
name: Deguchi, Tetsuo
Publisher: name: arXiv
Year: 2002
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The probability of a random polygon (or a ring polymer) having a knot type $K$ should depend on the complexity of the knot $K$. Through computer simulation using knot invariants, we show that the knotting probability decreases exponentially with respect to knot complexity. Here we assume that some aspects of knot complexity are expressed by the minimal crossing number $C$ and the aspect ratio $p$ of the tube length to the diameter of the {\it ideal knot} of $K$, which is a tubular representation of $K$ in its maximally inflated state.
description: 9 pages, 4 figures
Supplementary Material and Methods from Habitat preference modulates trans-oceanic dispersal in a terrestrial vertebrate
Creators: name: Mozes P. K. Blom
name: Matzke, Nicholas J.
name: Bragg, Jason G.
name: Arida, Evy
name: Austin, Christopher C.
name: Backlin, Adam R.
name: Carretero, Miguel A.
name: Fisher, Robert N.
name: Glaw, Frank
name: Hathaway, Stacie A.
name: Djoko T. Iskandar
name: McGuire, Jimmy A.
name: Karin, Benjamin R.
name: Reilly, Sean B.
name: Rittmeyer, Eric N.
name: Rocha, Sara
name: Mickäel Sanchez
name: Stubbs, Alexander L.
name: Vences, Miguel
name: Moritz, Craig
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: 60408 Genomics

description: The importance of long-distance dispersal (LDD) in shaping geographical distributions has been debated since the nineteenth century. In terrestrial vertebrates, LDD events across large water bodies are considered highly improbable, but organismal traits affecting dispersal capacity are generally not taken into account. Here, we focus on a recent lizard radiation and combine a summary-coalescent species tree based on 1225 exons with a probabilistic model that links dispersal capacity to an evolving trait, to investigate whether ecological specialization has influenced the probability of trans-oceanic dispersal. Cryptoblepharus species that occur in coastal habitats have on average dispersed 13 to 14 times more frequently than non-coastal species and coastal specialization has, therefore, led to an extraordinarily widespread distribution that includes multiple continents and distant island archipelagoes. Furthermore, their presence across the Pacific substantially predates the age of human colonization and we can, therefore, explicitly reject the possibility that these patterns are solely shaped by human-mediated dispersal. Overall, by combining new analytical methods with a comprehensive phylogenomic dataset, we use a quantitative framework to show how coastal specialization can influence dispersal capacity and eventually shape geographical distributions at a macroevolutionary scale.
Polymerization in Confined Space
Creators: Stefandl, Roland E.
Publisher: name: Columbia University
Year: 2011
Subjects: subject: Microchemistry
subject: Polymers
subject: Chemical engineering
subject: FOS: Chemical engineering

description: Polymerization of acrylamide in confined space was studied. The system used for the polymerization was a colloid of water/SDS/dodecane/pentanol. The colloidal was stable through the polymerization process only at specific compositions. The system revealed a lamellar water structure which housed the  gamma initiated reaction prior and after polymerization the lamellar was birefringent.  The polymer was characterized for its size and distribution.  SANS which was employed to measure the colloidal system for swelling of the lamellar  phase during all sections of the polymerization process showed a consistant  lamellar thickest through all multicomponent  transitions. The system was also observed under high shear showing thinning viscosity for synthesized polyacrylamide and a yield viscosity for very high molecular weight linear polyacrylamide.
Carex conferta A. Rich.
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Cyperaceae
Carex
Carex conferta

description: Carex conferta Hochst. ex A.Rich.  —
Habit: Herb.
Habitat: LMWF, LMDF, BZ, UMF, HZ, AZ; 1 900–3 900 m. Distribution: II.
 Voucher: Chogoria Track, Alt. 2 523 m, 27 Jan. 2015, SAJIT 002908 (HIB).
 References: Fries & Fries (1925), Bussmann (1993, 1994), Bussmann & Beck (1995a), Hoensellaar et al. (2010), Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 31, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Population Genetics of Mutation Load and Quantitative Traits in Humans
Creators: Simons, Yuval Benjamin
Publisher: name: Columbia University
Year: 2019
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Biology
subject: Human population genetics
subject: Mutation (Biology)

description: The past fifteen years have seen a revolution in human population genetics. We have gone from anecdotal genetic data from a few individuals at a few genetic loci to an avalanche of genome-wide sequencing data, from many individuals in many different human populations. These new data have opened up many new directions of research in human population genetics. In this work, I explore two such directions.
      Genomic data have uncovered that recent changes in human population size have had dramatic effects of on the genomes of different human populations. These effects have raised the question of whether historic changes in population size have led to differences in the burden of deleterious mutations, or mutation load, between different human populations. In Chapter 1 of this thesis, I show that despite earlier arguments to the contrary only minor differences in load are expected and indeed observed between Africans and Europeans.
      Over the past decade, genome-wide association studies (GWAS) have begun to systematically identify the genetic variants underlying heritable variation in quantitative traits. The number, frequencies and effect sizes of these variants reflect the selection, and other evolutionary processes, acting on traits. In Chapter 2, I develop a model for traits under pleiotropic, stabilizing selection, relate the model’s predictions to GWAS findings, and show that GWAS findings for height and BMI indeed follow model predictions. In Chapter 3, I develop a method to infer the distribution of selection coefficients acting on genome-wide significant associations made by GWAS.
Supplementary Figures from Habitat preference modulates trans-oceanic dispersal in a terrestrial vertebrate
Creators: name: Mozes P. K. Blom
name: Matzke, Nicholas J.
name: Bragg, Jason G.
name: Arida, Evy
name: Austin, Christopher C.
name: Backlin, Adam R.
name: Carretero, Miguel A.
name: Fisher, Robert N.
name: Glaw, Frank
name: Hathaway, Stacie A.
name: Djoko T. Iskandar
name: McGuire, Jimmy A.
name: Karin, Benjamin R.
name: Reilly, Sean B.
name: Rittmeyer, Eric N.
name: Rocha, Sara
name: Mickäel Sanchez
name: Stubbs, Alexander L.
name: Vences, Miguel
name: Moritz, Craig
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: 60408 Genomics

description: The importance of long-distance dispersal (LDD) in shaping geographical distributions has been debated since the nineteenth century. In terrestrial vertebrates, LDD events across large water bodies are considered highly improbable, but organismal traits affecting dispersal capacity are generally not taken into account. Here, we focus on a recent lizard radiation and combine a summary-coalescent species tree based on 1225 exons with a probabilistic model that links dispersal capacity to an evolving trait, to investigate whether ecological specialization has influenced the probability of trans-oceanic dispersal. Cryptoblepharus species that occur in coastal habitats have on average dispersed 13 to 14 times more frequently than non-coastal species and coastal specialization has, therefore, led to an extraordinarily widespread distribution that includes multiple continents and distant island archipelagoes. Furthermore, their presence across the Pacific substantially predates the age of human colonization and we can, therefore, explicitly reject the possibility that these patterns are solely shaped by human-mediated dispersal. Overall, by combining new analytical methods with a comprehensive phylogenomic dataset, we use a quantitative framework to show how coastal specialization can influence dispersal capacity and eventually shape geographical distributions at a macroevolutionary scale.
In-situ immobilization of selenium within the saturated zones of backfilled pits at coal-mine operations
Creators: name: Bianchin, Mario
name: Martin, Alan J.
name: Adams, Jack
Publisher: name: The University of British Columbia
Year: 2013

description: g passive technologies at mine sites is challenging as a result of associated high flow rates. However, the chemical and hydraulic conditions of backfilled pits offer a potential means to bioremediate large volumes of water passively. Specifically, the oxidation demand associated carbonaceous waste materials in conjunction with long water residence times within backfilled pits can produce the suboxic conditions required to support the removal of Se from solution through a suite of microbially-mediated processes. Evidence for Se removal is provided from a study of a backfilled pit at a coal mine in Northern Canada. Redox conditions within the saturated backfill are mildly-suboxic, as inferred from low levels of oxygen, nitrate and the presence of dissolved Mn and Fe. Results show pronounced removal of dissolved Se within the saturated backfill, with concentrations decreasing from 40 μg/L (upgradient of saturated zone) to <1 μg/L within the saturated waste rock zone. The reduction in Se concentration was accompanied by a shift in Se speciation from dominantly selenate (SeVI) to selenite (SeIV) along the flow path. Nitrate-N values are also reduced to values below detection (<0.05 mg/L) in the saturated backfill. The data suggest that this relatively small backfilled pit achieves a Se removal rate ranging from 0.03 to 0.3 mg/day/m³wasterock with a hydraulic residence time of 0.3 to 3 years. Collectively, the data imply that the saturated backfilled zones are serving as an effective site for the bioremediation of Se under mildly suboxic condition.
Dynamical structure factor of the $J_1-J_2$ Heisenberg model on the triangular lattice: magnons, spinons, and gauge fields
Creators: name: Ferrari, Francesco
name: Becca, Federico
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Understanding the nature of the excitation spectrum in quantum spin liquids is of fundamental importance, in particular for the experimental detection of candidate materials. However, current theoretical and numerical techniques have limited capabilities, especially in obtaining the dynamical structure factor, which gives a crucial characterization of the ultimate nature of the quantum state and may be directly assessed by inelastic neutron scattering. In this work, we investigate the low-energy properties of the $S=1/2$ Heisenberg model on the triangular lattice, including both nearest-neighbor $J_1$ and next-nearest-neighbor $J_2$ super-exchanges, by a dynamical variational Monte Carlo approach that allows accurate results on spin models. For $J_2=0$, our calculations are compatible with the existence of a well-defined magnon in the whole Brillouin zone, with gapless excitations at $K$ points (i.e., at the corners of the Brillouin zone). The strong renormalization of the magnon branch (also including roton-like minima around the $M$ points, i.e., midpoints of the border zone) is described by our Gutzwiller-projected state, where Abrikosov fermions are subject to a non-trivial magnetic $π$-flux threading half of the triangular plaquettes. When increasing the frustrating ratio $J_2/J_1$, we detect a progessive softening of the magnon branch at $M$, which eventually becomes gapless within the spin-liquid phase. This feature is captured by the band structure of the unprojected wave function (with $2$ Dirac points for each spin component). In addition, we observe an intense signal at low energies around the $K$ points, which cannot be understood within the unprojected picture and emerges only when the Gutzwiller projection is considered, suggesting the relevance of gauge fields for the low-energy physics of spin liquids.
description: 12 pages, 9 figures
title: Roscoea humeana Balf. f. & W. W. Sm.
Creators: name: :None
Publisher: name: Universitätsbibliothek
Year: 2012
Subjects: subject: Digitale Pflanzenbilder: Sammlung Dietmar Brandes
subject: 58

description: Digitale Pflanzenbilder: Sammlung Dietmar Brandes