cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Prediction model for biochar energy potential based on biomass properties and pyrolysis conditions derived from rough set machine learning
Creators: name: Tang, Jia Yong
name: Chung, Boaz Yi Heng
name: Ang, Jia Chun
name: Chong, Jia Wen
name: Tan, Raymond R.
name: Aviso, Kathleen B.
name: Chemmangattuvalappil, Nishanth G
name: Thangalazhy-Gopakumar, Suchithra
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified

description: Biochar is a high carbon content organic compound has potential applications in the field of energy storage and conversion. It can be produced from a variety of biomass feedstocks such as plant based, animal based, and municipal waste at different pyrolysis conditions. However, it is difficult to produce biochar on a large scale if the relationship between the type of biomass, operating conditions, and biochar properties is not understood well. Hence, the use of machine learning based data analysis is necessary to find the relationship between biochar production parameters as well as feedstock properties with biochar energy properties. In this work, a rough set-based machine learning (RSML) approach has been applied to generate decision rules and classify biochar properties. The condition attributes were biomass properties (volatile matter, fixed carbon, ash content, carbon, hydrogen, nitrogen, oxygen) and pyrolysis conditions (operating temperature, heating rate residence time) while the decision attributes considered were yield, carbon content, and higher heating value. The rules generated were tested against a set of validation data and evaluated for its scientific coherency. Based on then decision rules generated, biomass with ash content of 11 to 14 wt%, volatile matter of 60 to 62 wt% and carbon content of 42 to 45.3 wt% can generate biochar with promising yield, carbon content and higher heating value via pyrolysis process at operating temperature of 425°C to 475°C. This work provided the optimal biomass feedstock properties and pyrolysis conditions for biochar production with high mass and energy yield.
Soaring unemployment in Czechia during the global economic crisis
Creators: name: Netrdová, Pavlína
name: Jiří Blažek
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy
subject: Computational Biology

description: This study presents an analysis and visualisation of the evolutionary dynamics of unemployment at the municipal level in Czechia during the global economic crisis. The analysis is based on a monthly time series of unemployment data at a detailed territorial level. Namely, there are 6,258 municipalities in Czechia, which makes it particularly suitable for a detailed investigation of the unfolding and evolution of the recent crisis. Our focus is on analysing and mapping the spatiotemporal patterns of unemployment using variability and autocorrelation measures. Given the detailed territorial level of our analysis, large-scale maps will be presented to assist with interpretation and analytical conclusions. The Main Map (1:600 000) shows the categories of municipalities according to the rate of unemployment and its evolutionary dynamics. Three additional maps (1:1 400 000) visualise the results of spatiotemporal analyses.
A Posteriori Probabilistic Bounds of Convex Scenario Programs with Validation Tests
Creators: name: Shang, Chao
name: You, Fengqi
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optimization and Control (math.OC)
subject: Machine Learning (cs.LG)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Scenario programs have established themselves as efficient tools towards decision-making under uncertainty. To assess the quality of scenario-based solutions a posteriori, validation tests based on Bernoulli trials have been widely adopted in practice. However, to reach a theoretically reliable judgement of risk, one typically needs to collect massive validation samples. In this work, we propose new a posteriori bounds for convex scenario programs with validation tests, which are dependent on both realizations of support constraints and performance on out-of-sample validation data. The proposed bounds enjoy wide generality in that many existing theoretical results can be incorporated as particular cases. To facilitate practical use, a systematic approach for parameterizing a posteriori probability bounds is also developed, which is shown to possess a variety of desirable properties allowing for easy implementations and clear interpretations. By synthesizing comprehensive information about support constraints and validation tests, improved risk evaluation can be achieved for randomized solutions in comparison with existing a posteriori bounds. Case studies on controller design of aircraft lateral motion are presented to validate the effectiveness of the proposed a posteriori bounds.
Vernonia holstii O. Hoffm.
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
Magnoliopsida
Asterales
Asteraceae
Vernonia
Vernonia holstii

description: Vernonia holstii O.Hoffm.  —
Habit: Herb.
Habitat: LMDF; up to 2 100 m. Distribution: II.
Voucher: N/A.
Reference: 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 97, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
The Development of Reflective Thinking and its Influence on Patient Care Skills in Third Year Dental Students
Creators: Zubiaurre Bitzer, Laureen A.
Publisher: name: Columbia University
Year: 2017
Subjects: subject: Dental students
subject: Dental students--Attitudes
subject: Dentists--Education
subject: Dentists--Training of
subject: Dentistry--Study and teaching
subject: Dentistry
subject: FOS: Clinical medicine
subject: Educational evaluation
subject: Education, Higher

description: This study examined if dental students could increase their level of reflective skills over time through composing reflective blogs during their introduction to patient care in their course, Clinical Practice of Dentistry I, and to document and analyze student perceptions of the use of reflective blogs, particularly pertaining to the clinical and metacognitive skills. The participants of this study included 69 third-year dental students. Reflective blogs were analyzed using a reflective rubric adapted from Wetmore, Boyd, Bowen & Patillio, 2010. Student perceptions regarding the use of reflective blogs were documented through a 14-question Likert-opinion survey and focus group interviews. Findings indicated reflective thought level increased significantly in all six reflective thought categories across the three assessed blogs. Overall, student perceptions of the use of reflective blogs were positive as based on a five-point Likert scale survey. They reported particularly high percentages for "I feel comfortable about reflecting on my clinical experiences" at ~ 90% Agree, "Reflective journals allow me to focus and think things over" at ~ 83% Agree, followed by "Reflective journals develop my ability to monitor and reflect on my own thinking processes"~ 74%. Both the qualitative and quantitative results of this study provide favorable evidence that reflective journaling is effective and in large measure is appreciated by students in their clinical phase of dental medical education.
Vernonia subscandens R. E. Fries
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
Magnoliopsida
Asterales
Asteraceae
Vernonia
Vernonia subscandens

description: Vernonia subscandens R.E.Fries  —
Habit: Shrub.
Habitat: LMWF; 1 600–2 400 m. Distribution: IIIa.
 Voucher: Near Lake Nkunga, Alt. 1 900 m, 19 Jan. 2001, Luke et al. 7245 (EA, K).
References: Beentje (2000), 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 97, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Adsorption of Cd (II) ions and Methyl Violet dye by using an agar-graphene oxide nano-biocomposite
Creators: name: Gomes, Brener Felipe Melo Lima
name: de Araujo, Caroline Maria Bezerra
name: do Nascimento, Bruna Figueiredo
name: da Silva Santos, Ronald Keverson
name: de Luna Freire, Eleonora Maria Pereira
name: Da Motta Sobrinho, Mauricio Alves
name: do Nascimento Carvalho, Marilda
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Biophysics
Biochemistry
Environmental Sciences not elsewhere classified
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Mental Health

description: In this work, an agar-graphene oxide hydrogel was prepared to adsorb Cd (II) and Methyl Violet (MV) from water. The hydrogel was synthesized and characterized through SEM and EDS. Kinetic, equilibrium and regeneration studies were carried out, in which Langmuir, Freundlich and Sips isotherm models were fitted to the equilibrium experimental data; and regarding the kinetics, studies were conducted by modeling experimental data considering both empirical and phenomenological models. SEM and EDS have shown the composite presents a 3D-disordered porous microstructure and that it is mainly constituted of C and O. Sips model fitted well to Cd (II) (R2 = 0.968 and χ2= 0.176) and MV (R2 = 0.993 and χ2= 0.783). The qmax values for MV and Cd (II) were 76.65 mg.g-1 and 11.70 mg.g-1, respectively. Pseudo-order models satisfactorily described Cd (II) and MV adsorption kinetics with R2 > 0.90. Regeneration experiments revealed an outstanding reuse capacity of the adsorbent after three cycles of adsorption-desorption for both Cd (II) and MV. This study evidences the possibility of a feasible adsorbent for Cd (II) and MV removal from water for successive cycles of use.
Relaxation of classical many-body hamiltonians in one dimension
Creators: name: Lepri, Stefano
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The relaxation of Fourier modes of hamiltonian chains close to equilibrium is studied in the framework of a simple mode-coupling theory. Explicit estimates of the dependence of relevant time scales on the energy density (or temperature) and on the wavenumber of the initial excitation are given. They are in agreement with previous numerical findings on the approach to equilibrium and turn out to be also useful in the qualitative interpretation of them. The theory is compared with molecular dynamics results in the case of the quartic Fermi-Pasta-Ulam potential.
description: 9 pag. 6 figs. To appear in Phys.Rev. E
Vernonia syringifolia O. Hoffm.
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
Magnoliopsida
Asterales
Asteraceae
Vernonia
Vernonia syringifolia

description: Vernonia syringifolia O.Hoffm.  —
Habit: Herb.
Habitat: LMDF; 1 500–3 100 m. Distribution: II.
 Voucher: Naro Moru Track, Alt. 2 546 m, 23 Jul. 2014, SAJIT 002050 (HIB).
Reference: 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 98, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
The Development, Implementation, and Evaluation of a Yoga, Meditation, and Gratitude Practice Health Promotion Effort to Enhance Well-being in Women
Creators: Frost, Carolyn
Publisher: name: Columbia University
Year: 2019
Subjects: Health education
Women--Health and hygiene
Well-being
Mind and body therapies
Health promotion

description: Well-being is critical to fostering improved physical, mental, and emotional health among women. Regular physical activity also has significant implications for women’s health. Addressing the barriers that women experience to exercise may help improve exercise adherence and—ultimately—help to promote well-being in women. Mind-body therapies (e.g., yoga and meditation) have long been considered health promoting efforts with a well-being emphasis. Research confirms that these therapies are generally beneficial, safe, flexible, cost-effective and accessible. In addition, gratitude has strong links to mental health and life satisfaction, and has been shown to enhance well-being and facilitate goal attainment. There is an abundance of research on yoga, meditation and gratitude practices, though there is no program that effectively combines all three. This dissertation therefore developed, implemented, and evaluated the feasibility and effectiveness of a health promotion effort that integrates elements of yoga, meditation, and gratitude practice. One-hundred and eleven women participated in the study (nexperimental = 56 and ncontrol = 55). Data on adherence and feasibility were collected throughout the program. Data on study outcomes (including well-being) were collected at baseline and again following completion of the program from both groups. Qualitative data were also collected to help contextualize participant experiences in the program. The participants adhered to the yoga component of the program exceptionally well. The average participant completed 125% of the yoga classes, 86.58% of the meditations and 88.24% of the gratitude practices. Paired sample t-tests were conducted to examine pre- and post-intervention changes in well-being between and within groups. Despite the popularity and positive response to the program - 93.10% of participants in the yoga, meditation and gratitude group (YMG; n=54) reported a perceived improvement in well-being - many of the well-being findings were statistically insignificant. However, significant improvements on disposition and positive relationships were observed among the YMG group; suggesting the intervention had a significant impact on experiencing gratitude in everyday life, as well as on one’s positive assessment of personal relationships. This study lays important groundwork for future and larger scale research to create and subsequently implement successful mind-body health promotion programs for women.
The Development, Implementation, and Summative Evaluation of a Therapeutic Hypothermia Online Self-learning Module, Protocol and Checklist for Registered Nurses: Implications for Training and Practice
Creators: Donnelly, Claire
Publisher: name: Columbia University
Year: 2021
Subjects: Health education
Nurses--Training of
Nurses--Workload
Hypothermia
Coma
Internet in higher education

description: Nurses, especially those who care for the critically ill, are required to perform high-level intensive clinical care. It is common for complicated procedures such as therapeutic hypothermia (TH) to be done infrequently at small community hospitals. According to the 2020 recommendations by the American Heart Association (AHA), “prompt initiation of targeted temperature management (formally known as TH) is necessary for all patients who do not follow commands after return of spontaneous circulation to ensure optimal functional and neurological outcome” (Panchal et al., 2020, p.S366). These high-risk, low-frequency protocols typically require nurses to be able to perform these procedures in a time-sensitive manner. If the procedures are not done correctly, they can have negative patient outcomes. Patients are put into medically induced comas, maintained on ventilators, cooled to very low body temperatures, and often medically paralyzed to inhibit shivering. Each of these conditions has the potential for adverse outcomes and together can lead to poor neurological outcomes and even death (Kim et al., 2015). Health educators have the opportunity to provide knowledge and support to these nurses as a way to improve patient outcomes. In this study, a patient care checklist and an online self-learning module were developed for nurses to learn how to perform this high-risk procedure quickly and effectively. A focus group was then conducted with a group of nurses to gain feedback on the checklist and module, and these data informed specific changes to these materials. Then, drawing on a sample of 60 nurses and using a post-study design, data were collected to determine the effectiveness of the checklist and online module as compared to a control group of nurses who read a scholarly article on the same subject. Data were collected at two time points for both the experimental and control groups. The results indicated that nurses who used the online learning tool scored higher in the post-assessment than those in the control group (t = 6.092, p < .001, BCondition = 3.865), with a remarkably high effect size, r2 = 0.379. Moreover, 77% of the nurses agreed that protocols and checklists helped nurses minimize disparities in patient health outcomes. Additionally, 95% of the nurses agreed that patient care checklists helped them care for patients when delivering high-risk, low-volume protocols such as TH. This study demonstrated that online learning tools provide an effective way to educate nurses, and checklists and protocols support the implementation of high-risk, low-volume procedures such as TH.
Multiplayer Rock-Paper-Scissors
Creators: name: Aten, Charlotte
Publisher: name: arXiv
Year: 2019
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 08A05 (Primary) 05C20, 05C65, 08A35 (Secondary)

description: We study a class of algebras we regard as generalized Rock-Paper-Scissors games. We determine when such algebras can exist, show that these algebras generate the varieties generated by hypertournament algebras, count these algebras, study their automorphisms, and determine their congruence lattices. We produce a family of finite simple algebras.
description: Submitted to the special Topical Collection of Algebra Universalis honoring Ralph Freese, Bill Lampe, and JB Nation
The Development of the Lesbian, Gay, Bisexual Affiliate Stigma Measure
Creators: Robinson, Matthew
Publisher: name: Columbia University
Year: 2014
Subjects: Counseling psychology

description: The present study describes the development and psychometric evaluation of the Lesbian, Gay, Bisexual Affiliate Stigma Measure (LGB-ASM). Existing qualitative research and feedback from experts in stigma research, contributed to the development of 48 items that were subjected psychometric evaluation resulting in the final 17-item measure. Exploratory factor analysis of data from 471 LGB affiliates (family members and close friends of LGB individuals) resulted in 3 factors reflecting experiences of LGB affiliate stigma including (a) Public Discrimination/Rejection affiliate stigma, (b) Vicarious affiliate stigma, and (c) Public Shame affiliate stigma. Confirmatory factor analysis of data from a separate 101 participants supported the stability of the 3-factor model. Further psychometric evaluation of the measure resulted in evidence supporting the reliability (i.e., Cronbach's alphas of .71 to .93), convergent validity (i.e., with stigma consciousness, r = .17 to .45; with awareness of public devaluation, r = .18 to .28), and discriminant validity (i.e., with socially desirable responding, r = -.16 to .05). The final 17-item LGB-ASM yielded 2-to 3-week test-retest reliability coefficients of .74 to .76 with a sample of 61 participants. Links between the LGB-ASM and psychological distress (using the Hopkins Symptom Checklist - 21) were evaluated and unsupported.
On the Behaviour and Stability of Superconducting Currents
Creators: name: Lemperiere, Y.
name: Shellard, E. P. S.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present analytic and numerical results for the evolution of currents on superconducting strings in the classical $U(1) \times U(1)$ model. We derive an energy functional for the currents and charges on these strings, establishing rigorously that minima should exist in this model for loops of finite size (vortons) if both charge and current are present on the worldsheet. We then study the stability of the currents on these strings, and we find an analytic criterion for the onset of instability (in the neutral limit). This limit specifies a lower maximal current than previous heuristic estimates. We conclude with a discussion of the evolution of loops towards their final vorton state in the model under consideration.
description: 18 pages, 6 figures. To be submitted to Nuclear Physics B
Allantus lituratus Mocsary 1886
Creators: name: Taeger, Andreas
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Tenthredinidae
Allantus
Allantus lituratus

description: Allantus lituratus Mocsáry, 1886
A valid species, Tenthredo (Tenthredo) liturata (Mocsáry, 1886).
TYPES. Allantus lituratus Mocsáry, 1886: 3. Syntype (s) 3, “Caucasus”. 1 3 syntype “Kaukas”. Examined.
description: Published as part of Taeger, Andreas, 2013, The type specimens of Tenthredo Linnaeus, 1758 (Hymenoptera: Tenthredinidae) deposited in the Hungarian Natural History Museum, pp. 201-244 in Zootaxa 3626 (2) on page 221, DOI: 10.11646/zootaxa.3626.2.1, http://zenodo.org/record/248049
Discovery of polarizations from ground state absorption lines: tracer of sub-Gauss magnetic field on 89Her
Creators: name: Zhang, Heshou
name: Gangi, Manuele
name: Leone, Francesco
name: Taylor, Andrew
name: Yan, Huirong
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report the identification of the polarization of ground state absorption lines from post-AGB 89~Hercules. Two ground state neutral iron lines are found to have counterintuitive high-amplitude polarizations and an unchanged polarization direction through the orbital period, as opposed to the pattern of polarizations of absorption lines from excited states, which are synchronized with the orbital phase owing to optical pumping. This can be explained with magnetic realignment on the ground state. The 3D mean magnetic field is thereby unveiled from the degree and direction of the polarizations of the two iron lines. The field strength is also constrained to be $\lesssim 100\,{\rm mG}$. Our result has thus improved the accuracy by orders of magnitude compared to the previous $10\,{\rm G}$ upper limit set by non-detection of the Zeeman effect.
description: 7 pages, 4 figures, ApJ Lett. accepted
Activated carbon based paste electrodes for the simultaneous and effective detection of divalent cadmium and lead ions in wastewater.
Creators: name: Aravind, S. P.
name: Anandhu, T. P.
name: Jayakumar, Karthik
name: Appukuttan, Ashna
name: B, Rahul Krishna
name: Amala, J.
name: Bhuvaneshwari, S.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Space Science
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified

description: Heavy metals (HM) have gained significant attention in terms of regular monitoring and detection owing to their toxicity, non-biodegradability, and persistence. Current techniques for detecting HM are expensive, cumbersome, and require sophisticated instruments and skilled labor. Hence, developing cheap, rapid, energy-efficient, and accurate sensors is imperative and electrochemical techniques have emerged as promising tools. The current study involves the fabrication of an electrochemical sensor for the concurrent detection of lead (Pb2+) and cadmium (Cd2+) ions using modified carbon paste electrodes (mCPE). Activated carbon (AC) with a BET surface area of 1118 m2 g-1 was obtained by chemical activation and thermal treatment of the waste rubberwood sawdust. AC-Graphite, AC-Reduced Graphene Oxide (RGO), and AC-RGO-Chitosan were the types of mCPEs that were utilized. The electrochemical behaviors and effects of pH, concentration, and scan rate were studied using Cyclic voltammetry (CV). Studies on detection were conducted using CV and linear sweep voltammetry. Although all the 3 mCPEs detected Cd2+ and Pb2+ in the simulated wastewater, the CPE with RGO and AC could detect Cd2+ as low as 10.91  µg L-1 and Pb2+ as low as 14.01  µg L-1. The work explored the possibility of using AC as a potential sustainable substitute for graphite in CPE.
Coarse-graining strategy for modeling effective, highly diffusive fluids with reduced polydispersity: A dynamical study
Creators: name: Heinemann, Thomas
name: Jung, YounJoon
Publisher: name: arXiv
Year: 2019
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a coarse-graining strategy for reducing the number of particle species in mixtures to achieve a simpler system with higher diffusion while preserving the total particle number and characteristic dynamic features. As a system of application, we chose the bidisperse Lennard-Jones-like mixture discovered by Kob and Andersen [Phys. Rev. Lett. 73, 1376 (1994)] possessing a slow dynamics due to the fluid's multi-component character with its apparently unconventional choice for the pair potential of the type-A-type-B arrangement. We further established in a so-formed coarse-grained and temperature-independent monodisperse system an equilibrium structure with a radial distribution function resembling its mixture counterpart. This one-component system further possesses similar dynamic features like glass transition temperature and critical exponents while subjected to Newtonian mechanics. This strategy may finally lead to the manufacturing of new nanoparticle/colloidal fluids by experimentally modeling only the outcoming effective pair potential(s) and no other macroscopic quantity.
description: 19 pages, 16 figures
Improved initial data for black hole collisions
Creators: name: Lousto, Carlos O.
name: Price, Richard H.
Publisher: name: arXiv
Year: 1997
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Numerical relativity codes now being developed will evolve initial data representing colliding black holes at a relatively late stage in the collision. The choice of initial data used for code development has been made on the basis of mathematical definitiveness and usefulness for computational implementation. By using the ``particle limit'' (the limit of an extreme ratio of masses of colliding holes) we recently showed that the standard choice is not a good representation of astrophysically generated initial data. Here we show that, for the particle limit, there is a very simple alternative choice that appears to give excellent results. That choice, ``convective'' initial data is, roughly speaking, equivalent to the start of a time sequence of parameterized solutions of the Hamiltonian constraint; for a particle in circular orbit, it is the initial data of the steady state solution on any hypersurface. The implementation of related schemes for equal mass holes is discussed.
description: 10 pages, REVTEX, 14 PS figs
Vernoniastrum aemulans H. Rob.
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
Magnoliopsida
Asterales
Asteraceae
Vernoniastrum
Vernoniastrum aemulans

description: Vernoniastrum aemulans (Vatke) H.Rob.  —
Habit: Herb.
Habitat: LMDF; 1 500–3 100 m. Distribution: IIIa.
Voucher: N/A.
Reference: 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 98, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
The Difference in Distributed Principal Leadership Practices According to the Comprehensive Assessment of Leadership for Learning Between Teachers and School Leaders, Grade Level and Region
Creators: Freeman, Margaret
Publisher: name: Columbia University
Year: 2020
Subjects: Educational leadership
Educational evaluation
Urban schools
Rural schools

description: Leadership for learning has arisen as a robust framework for measuring principal leadership practices that impact student achievement by synthesizing fundamental theories of principal leadership, such as instructional leadership, transformational leadership, and shared instructional leadership. Research affirms the need for principals to prioritize leadership for learning practices based on the context. However, we know little about how context impacts which leadership for learning practices are prioritized by teachers and administrators in these different contexts of school level (elementary or secondary) and region (rural, small town, suburban, urban). The purpose of this dissertation study is to examine how differences in context affect specific leadership for learning practices. These differences will provide evidence for the need to revamp the principal evaluation systems that are currently in use and allow us to identify opportunities for preparation, support, and professional development for principals. I use the Comprehensive Assessment of Leadership for Learning (CALL) survey for this dissertation study as it combines recent research on principal leadership to measure specific leadership skills. Collected by the researchers of the CALL group at the University of Wisconsin-Madison, I use the 2016-2019 CALL dataset in the present study, which includes 281 schools with 536 administrators and 8,027 teachers. This dissertation study examines a) differences in teacher and administrator ratings within the CALL assessment, b) differences in secondary and elementary school level ratings within the CALL assessment, c) differences in administrator’s ratings by region within the CALL assessment. The results of this dissertation study show that a) administrator perceptions of the frequency of leadership for learning practices are always higher than teacher scores for any leadership for learning practice, b) elementary schools had fewer disagreements across the leadership for learning practices in comparison to secondary schools when comparing the perceptions of the frequency of practices in leadership for learning scores between teachers and administrators, and c) substantial differences occur in the perception of the frequency of leadership for learning practices between urban school administrators and administrators in other regional contexts (rural, small town, suburban), especially around issues of school climate, summative evaluation of teachers and students, and resourcing strategically.
A self-similar model for shear flows in dense granular materials
Creators: name: Debregeas, G.
name: Josserand, C.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: We propose a model to describe the quasistatic shearing of dry granular materials, which notably captures the differences in velocity profiles recently observed in 2 and 3-D Couette flow experiments. In our scheme, the steady-state flow is due to the intermittent motion of particle clusters moving together with the wall. The motion of a cluster is associated with the transient formation of a fracture inside the sheared pack. The model is based on the existence of a persistence length for the fractures, which imposes a self-similar structure on the clusters. Through a probabilistic approach, we can evaluate the rate of appearance of a cluster of a given size and obtain a prediction for the average velocity profiles. We also predict the existence of large stress fluctuations at the moving wall, which characteristics are in good agreement with experimental data.
description: 7 pages, 2 figures, correction of the text
Windenergieanlagen und Marikultur
Creators: name: Mochtak, Arkadiusz Paweł
Publisher: name: Universität Rostock
Year: 2018
Subjects: subject: 340 Law

description: Das Ziel der vorliegenden Arbeit besteht in erster Linie in der Beantwortung der Frage, ob die multifunktionalen Anlagen in der AWZ der Nordsee bei der aktuellen Rechtslage realisierbar sind. Im Falle der positiven Antwort soll nach Möglichkeit eine Hilfe zur praktischen Umsetzung solcher Vorhaben den Betreibern in die Hand gegeben werden – im Sinne eines Leitfadens bzw. Zusammenstellung der rechtlichen Anforderungen an solche Anlagen. Es werden auch Verbesserungsvorschläge für das geltende Recht erarbeitet.
Exploring twist-2 GPDs through quasi-distributions in a diquark spectator model
Creators: name: Bhattacharya, Shohini
name: Cocuzza, Christopher
name: Metz, Andreas
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Quasi parton distributions (quasi-PDFs) are currently under intense investigation. Quasi-PDFs are defined through spatial correlation functions and are thus accessible in lattice QCD. They gradually approach their corresponding standard (light-cone) PDFs as the hadron momentum increases. Recently, we investigated the concept of quasi-distributions in the case of generalized parton distributions (GPDs) by calculating the twist-2 vector GPDs in the scalar diquark spectator model. In the present work, we extend this study to the remaining six leading-twist GPDs. For large hadron momenta, all quasi-GPDs analytically reduce to the corresponding standard GPDs. We also study the numerical mismatch between quasi-GPDs and standard GPDs for finite hadron momenta. Furthermore, we present results for quasi-PDFs, and explore higher-twist effects associated with the parton momentum and the longitudinal momentum transfer to the target. We study the dependence of our results on the model parameters as well as the type of diquark. Finally, we discuss the lowest moments of quasi distributions, and elaborate on the relation between quasi-GPDs and the total angular momentum of quarks. The moment analysis suggests a preferred definition of several quasi-distributions.
description: 27 pages; expanded discussion, conclusions unchanged, to appear in PRD
Closed time-like curves in measurement-based quantum computation
Creators: name: Galvao, Ernesto Fagundes
Publisher: name: The University of British Columbia
Year: 2016

description: Many results have been recently obtained regarding the power of hypothetical closed time-like curves (CTC’s) in quantum computation. Most of them have been derived using Deutsch’s influential model for quantum CTCs [D. Deutsch, Phys. Rev. D 44, 3197 (1991)]. Deutsch’s model demands self-consistency for the time-travelling system, but in the absence of (hypothetical) physical CTCs, it cannot be tested experimentally. In this paper we show how the one-way model of measurement-based quantum computation (MBQC) can be used to test Deutsch’s model for CTCs. Using the stabilizer formalism, we identify predictions that MBQC makes about a specific class of CTCs involving travel in time of quantum systems. Using a simple example we show that Deutsch’s formalism leads to predictions conflicting with those of the one-way model. There exists an alternative, little-discussed model for quantum time-travel due to Bennett and Schumacher (in unpublished work, see http://bit.ly/cjWUT2), which was rediscovered recently by Svetlichny [arXiv:0902.4898v1]. This model uses quantum teleportation to simulate (probabilistically) what would happen if one sends quantum states back in time. We show how the Bennett/ Schumacher/ Svetlichny (BSS) model for CTCs fits in naturally within the formalism of MBQC. We identify a class of CTC’s in this model that can be simulated deterministically using techniques associated with the stabilizer formalism. We also identify the fundamental limitation of Deutsch's model that accounts for its conflict with the predictions of MBQC and the BSS model. This work was done in collaboration with Raphael Dias da Silva and Elham Kashefi, and has appeared in preprint format (see website).
QCD/String holographic mapping and high energy scattering amplitudes
Creators: name: Boschi-Filho, H.
name: Braga, Nelson R. F.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We find a one to one mapping between low energy string dilaton states in AdS bulk and high energy glueball states on the corresponding boundary. This holographic mapping leads to a relation between bulk and boundary scattering amplitudes. From this relation and the dilaton action we find the appropriate momentum scaling for high energy QCD amplitudes at fixed angles.
description: Minor changes in text. Version accepted for publication in PLB
Xanthium strumarium L.
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
Magnoliopsida
Asterales
Asteraceae
Xanthium
Xanthium strumarium

description: * Xanthium strumarium L.  —
Habit: Herb.
Habitat: LMDF. Distribution: IV.
 Voucher: Lower Imenti Forest, Alt. 1 379 m, 8 Aug. 2015, SAJIT 003871 (HIB).
Reference: N/A.
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 98, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Explicitly correlated wavefunctions of the ground state and the lowest quintuplet state of the carbon atom
Creators: name: Strasburger, Krzysztof
Publisher: name: arXiv
Year: 2019
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences
subject: 81V45

description: Variational, nonrelativisitic energies have been calculated for the ground state ($^3P_g$) and the lowest quintuplet state ($^5S_u$) of the carbon atom, with wavefunctions expressed in the basis of symmetry-projected, explicitly correlated Gaussian (ECG) lobe functions. New exact limits of these energies have been estimated, amounting to $-37.844906(4)$ and $-37.691751(2)$ hartree. With finite nuclear masses and leading, scalar relativistic corrections included, respective experimental excitation energy of $^{12}C$ has been reproduced with accuracy of about 7 cm$^{-1}$.
description: 10 pages, 2 figures, research paper; updated because original version of this paper contained erroneous values of the orbit-orbit term
title: Математические средства решения задач управления логистическими системами
title: Учебное пособие
titleType: Subtitle
Creators: name: Алексеев Г.В.
name:  Холявин И.И.
name:  Боровков М.И.
Publisher: name: Ай Пи Ар Медиа
Year: 2020

description: В учебном пособии изложены некоторые подходы к использованию современного математического инструментария в управлении современными логистическими системами. Кроме теоретической базы, в нем изложены основы и примеры использования системного подхода и математического аппарата в различных приложениях, причем каждая тема иллюстрируется примерами. Подробно представлено решение рассматриваемых примеров и задач с помощью одной из современных систем компьютерной математики — пакета прикладных программ MathCAD, которая делает анализ различных подходов управления более эффективным и позволяет сосредоточить внимание студента на логике методов и алгоритмов, освобождая от необходимости освоения громоздких вычислительных процедур. Издание также снабжено заданиями для самостоятельной работы по дисциплине «Математические средства решения задач управления логистическими системами». Подготовлено с учетом требований Федерального государственного образовательного стандарта высшего образования. Учебное пособие предназначено для студентов, обучающихся по направлениям 38.03.02, 38.04.02 «Менеджмент», в рамках реализации профиля «Управление логистическими системами». Может быть полезно для студентов и аспирантов других экономических направлений и специалистов, работающих в сфере менеджмента.
Engineering Logical Inflammation Sensing and Secreting Circuit for Gut Modulation
Creators: name: Merk, Liana N.
Publisher: name: California Institute of Technology
Year: 2021
Subjects: Bioengineering
inflammation
microbiome engineering
circuit modeling
synthetic biology

description: The mammalian gut contains trillions of microbes that interact with host cells and monitor changes in the environment. Opportunistic pathogens exploit environmental conditions to stimulate their growth and virulence, leading to a resurgence of chronic disorders such as inflammatory bowel disease (IBD). Current therapies are effective in less than 30% of patients due to the lack of adherence to prescription schedules and overall, off-target effects. Microbial therapeutics can be engineered to colonize the gut, providing in situ surveillance and conditional disease modulation. However, many current engineered microbes can only respond to single gut environmental factors, limiting their effectiveness. In this work, we implement a previously characterized split activator AND logic gate in the probiotic E. coli strain Nissle 1917. Our system can respond to two input signals: the inflammatory biomarker tetrathionate and a second input signal, IPTG or aTC. We report 4-6 fold induction with minimal leak when both signals are present. We model the dynamics of the AND gate using chemical reaction networks, and by tuning parameters in silico, we identified perturbations that affect our circuit’s selectivity. We then engineer our optimized AND gate to secrete an anti-inflammatory therapeutic cytokine, IL-22, using the hemolysin secretion pathway. We anticipate that our results will prove useful for designing living therapeutics for spatial targeting and signal processing in complex environments.
Wave Propagation in Stochastic Spacetimes: Localization, Amplification and Particle Creation
Creators: name: Hu, B. L.
name: Shiokawa, K.
Publisher: name: arXiv
Year: 1997
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Here we study novel effects associated with electromagnetic wave propagation in a Robertson-Walker universe and the Schwarzschild spacetime with a small amount of metric stochasticity. We find that localization of electromagnetic waves occurs in a Robertson-Walker universe with time-independent metric stochasticity, while time-dependent metric stochasticity induces exponential instability in the particle production rate. For the Schwarzschild metric, time-independent randomness can decrease the total luminosity of Hawking radiation due to multiple scattering of waves outside the black hole and gives rise to event horizon fluctuations and thus fluctuations in the Hawking temperature.
description: 26 pages, 1 Postscript figure, submitted to Phys. Rev. D on July 29, 1997
Evidence in biomass burning smoke for a light-absorbing aerosol with properties intermediate between brown and black carbon
Creators: name: Adler, Gabriela
name: Wagner, Nicholas L.
name: Lamb, Kara D.
name: Manfred, Katherine M.
name: Schwarz, Joshua P.
name: Franchin, Alessandro
name: Middlebrook, Ann M.
name: Washenfelder, Rebecca A.
name: Womack, Caroline C.
name: Yokelson, Robert J.
name: Murphy, Daniel M.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Space Science
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 20199 Astronomical and Space Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Biomass combustion produces black carbon (BC) and brown carbon (BrC) aerosols that contribute substantially to warming the Earth’s atmosphere. Accurate knowledge of their emissions and absorption per unit mass (mass absorption cross-section; MAC) can be used to quantify the radiative impact of these combustion products. We isolated particles generated from laboratory biomass burning fires by morphology and found that some particles from biomass burning do not correspond to either BC or BrC according to common operational definitions. Unlike BrC, these particles strongly absorb red light, with a MAC and spectral dependence of absorption between that of BrC and BC. They also have intermediate volatility: they survive thermodenuding at 250 °C but do not heat to incandescence in a single particle soot photometer (SP2) instrument. We also found evidence for intermediate properties in ambient wildfire smoke from the 2013 Rim Fire in California. More work is needed to understand how much this intermediate material contributes to atmospheric light absorption from typical combustion, whether or not it corresponds to “tar balls,” and how it may affect previous MAC measurements that were attributed to enhanced absorption by transparent coatings. Copyright © 2019 American Association for Aerosol Research
SUSY discovery prospects with MoEDAL
Creators: name: Sakurai, K.
name: Felea, D.
name: Mamuzic, J.
name: Mavromatos, N. E.
name: Mitsou, V. A.
name: Pinfold, J. L.
name: de Austri, R. Ruiz
name: Santra, A.
name: Vives, O.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a preliminary study on the possibility to search for massive long-lived electrically charged particles at the MoEDAL detector. MoEDAL is sensitive to highly ionising objects such as magnetic monopoles or massive (meta-)stable electrically charged particles and we focus on the latter in this paper. Requirements on triggering or reducing the cosmic-ray and cavern background, applied in the ATLAS and CMS analyses for long-lived particles, are not necessary at MoEDAL, due to its completely different detector design and extremely low background. On the other hand, MoEDAL requires slow-moving particles, resulting in sensitivity to massive states with typically small production cross sections. Using Monte Carlo simulations, we compare the sensitivities of MoEDAL versus ATLAS/CMS for various long-lived particles in supersymmetric models, and we seek a scenario where MoEDAL can provide discovery reach complementary to ATLAS and CMS.
description: 8 pages, 5 figures; invited talk in 6th Symposium on Prospects in the Physics of Discrete Symmetries (DISCRETE 2018), 26-30 Nov 2018, Vienna, Austria, presented by V.A.M.; minor changes matching published version