cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
What Do We Actually Learn from Evaluations in the "Heroic Era" of Visualization?
Creators: name: Correll, Michael
Publisher: name: arXiv
Year: 2020
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: We often point to the relative increase in the amount and sophistication of evaluations of visualization systems versus the earliest days of the field as evidence that we are maturing as a field. I am not so convinced. In particular, I feel that evaluations of visualizations, as they are ordinarily performed in the field or asked for by reviewers, fail to tell us very much that is useful or transferable about visualization systems, regardless of the statistical rigor or ecological validity of the evaluation. Through a series of thought experiments, I show how our current conceptions of visualization evaluations can be incomplete, capricious, or useless for the goal of furthering the field, more in line with the "heroic age" of medical science than the rigorous evidence-based field we might aspire to be. I conclude by suggesting that our models for designing evaluations, and our priorities as a field, should be revisited.
Additional file 1 of A cost-effectiveness analysis of community water fluoridation for schoolchildren
Creators: name: Cronin, Jodi
name: Moore, Stephen
name: Máiréad Harding
name: Whelton, Helen
name: Woods, Noel
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1: Supplementary Table 1. Treatment probabilities. Supplementary Table 2. Survival probabilities. Supplementary Table 3 Dental treatment costs. Sample Calculation Expected follow-up treatment sample calculation. Supplementary Table 4 Overview of parameters varied in the probabilistic sensitivity analysis. Supplementary Table 5. Overview of study parameters in the reference case Supplementary Table 6. CHEERS checklist.
Confronting LCDM with Gravitational Lensing Constraints on Small Scale Structure
Creators: name: Metcalf, R. Benton
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This paper primarily addresses the question of whether recent lensing observations probing the small scale structure in the universe are consistent with the LCDM model. A conservative approach is taken where only the most difficult to explain cases of image flux anomalies in strong lenses are considered. Numerical simulations are performed to compare predictions for the LCDM small scale mass function with observed flux ratios. It is found by simulating several represent cases that all the cusp caustic lens anomalies and the disagreements between monochromatic flux ratios and simple lens models might be explained without any substructure in the primary lenses' dark matter halos. Intergalactic LCDM halos are enough to naturally explain these cases. However, thus far, spectroscopic gravitational lensing observations require more small mass halos (~ 10^6 Msun) than is expected in the LCDM model.
description: submitted to ApJ, 19 pages, 7 figures, replaced with accepted version, more discussion of tests of the computer code
Additional file 1 of Communication and role clarity inform TeleICU use: a qualitative analysis of opportunities and barriers in an established program using AACN framework
Creators: name: Krupp, Anna
name: Martino, Michael Di
name: Chung, Wesley
name: Krisda Chaiyachati
name: Anish K. Agarwal
name: Huffenberger, Ann Marie
name: Laudanski, Krzysztof
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1. “Tele-medicine – BMC Semi-structured Interview” – Provider and Patient Perspective on the Value of Direct-to-consumer Telehealth for Urgent Care: Telemedicine Provider Semi-structured Interview Guide – V4.
A comparative analysis of the technical efficiency of rain-fed and smallholder irrigation in Ethiopia
Creators: name: Makombe, Godswill
name: Namara, Regassa E.
name: Hagos, Fitsum
name: Awulachew, Seleshi Bekele
name: Ayana, Mekonnen
name: Bossio, Deborah A.
name: Makombe, Godswill
name: Namara, Regassa E.
name: Hagos, Fitsum
name: Awulachew, Seleshi Bekele
name: Ayana, Mekonnen
name: Bossio, Deborah A.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Crop Production/Industries
subject: Farm Management
subject: Rainfed farming
subject: Irrigated farming
subject: Efficiency
subject: Irrigation schemes
subject: Small scale systems
subject: Cropping patterns
subject: Crop production
subject: Economic aspects
subject: Statistical analysis

description: Agriculture is the most significant contributor to Ethiopia’s economy. Most of the agricultural production is under rainfed conditions and thus extremely sensitive to rainfall variability. Irrigation development, including smallholder irrigation, is used by the Ethiopian Government to attempt to mitigate the effects of rainfall variability. In this study, we look at smallholder irrigation - modern and traditional irrigation systems. A detailed description of the cropping patterns is given. The stochastic frontier production function approach is used to estimate technical inefficiency, and constraints to production are analyzed. Since the traditional system is found to be efficient but on a lower production frontier, the study shows that significant gains can be made by raising the frontier of the traditional systems and increasing the efficiency of the modern systems. Among the production constraints studied were land preparation, soil fertility, weed control, pests and diseases, soil erosion, input access and moisture deficiency. The most significant constraints on the irrigated systems were input access and moisture deficiency.
Sense and Sensibility: Characterizing Social Media Users Regarding the Use of Controversial Terms for COVID-19
Creators: name: Lyu, Hanjia
name: Chen, Long
name: Wang, Yu
name: Luo, Jiebo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: With the world-wide development of 2019 novel coronavirus, although WHO has officially announced the disease as COVID-19, one controversial term - "Chinese Virus" is still being used by a great number of people. In the meantime, global online media coverage about COVID-19-related racial attacks increases steadily, most of which are anti-Chinese or anti-Asian. As this pandemic becomes increasingly severe, more people start to talk about it on social media platforms such as Twitter. When they refer to COVID-19, there are mainly two ways: using controversial terms like "Chinese Virus" or "Wuhan Virus", or using non-controversial terms like "Coronavirus". In this study, we attempt to characterize the Twitter users who use controversial terms and those who use non-controversial terms. We use the Tweepy API to retrieve 17 million related tweets and the information of their authors. We find significant differences between these two groups of Twitter users across their demographics, user-level features like the number of followers, political following status, as well as their geo-locations. Moreover, we apply classification models to predict Twitter users who are more likely to use controversial terms. To our best knowledge, this is the first large-scale social media-based study to characterize users with respect to their usage of controversial terms during a major crisis.
Management of private tubewells in a conjunctive use environment: a case study in the Mananwala Distributary Command Area, Punjab, Pakistan
Creators: name: Malik, Saleem M.
name: Strosser, Pierre
name: Malik, Saleem M.
name: Strosser, Pierre
Publisher: name: Unknown
Year: 1993
Subjects: subject: Farm Management
subject: Irrigation management
subject: Irrigated farming
subject: Tube well irrigation
subject: Groundwater
subject: Surface water
subject: Watercourses
subject: Conjunctive use
subject: Water market
subject: Salinity
subject: Farming systems

description: This paper analyzes the tubewell data collected by IIMI-Pakistan over a period of 4 years. While the main emphasis remains on the operation of private tubewells, public tubewells and canal water supplies are included in the analyses to give a more comprehensive picture of the conjunctive use environment, a characteristic of most of the irrigated areas of the Punjab, Pakistan.
Testing the Master Constraint Programme for Loop Quantum Gravity IV. Free Field Theories
Creators: name: Dittrich, Bianca
name: Thiemann, Thomas
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: This is the fourth paper in our series of five in which we test the Master Constraint Programme for solving the Hamiltonian constraint in Loop Quantum Gravity. We now move on to free field theories with constraints, namely Maxwell theory and linearized gravity. Since the Master constraint involves squares of constraint operator valued distributions, one has to be very careful in doing that and we will see that the full flexibility of the Master Constraint Programme must be exploited in order to arrive at sensible results.
description: 23 pages, no figures
Additional file 1 of Cardiovascular risk factors and the impact on prognosis in patients with chronic kidney disease secondary to autosomal dominant polycystic kidney disease
Creators: name: Gorriz, José Luis
name: Arroyo, David
name: D’Marco, Luis
name: Torra, Roser
name: Tomás, Patricia
name: Puchades, María Jesús
name: Nayara Panizo
name: Jonay Pantoja
name: Montomoli, Marco
name: Llisterri, José Luis
name: Pallares-Carratalá, Vicente
name: Valdivielso, José Manuel
Publisher: name: figshare
Year: 2021
Subjects: Medicine
Cell Biology
Biotechnology
Marine Biology
Science Policy
Computational Biology

description: Additional file 1.
The square and add Markov chain
Creators: name: Diaconis, Persi
name: He, Jimmy
name: Isaacs, I. Martin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Squaring and adding $\pm 1$ mod p generates a curiously intractable random walk. A similar process over the finite field $\mathbf{F}_q$ (with $q=2^d$) leads to novel connections between elementary Galois theory and probability.
description: 16 pages. Comments are welcome!
Does food trade save water?: the potential role of food trade in water scarcity mitigation
Creators: name: International Water Management Institute (IWMI)
name: International Water Management Institute (IWMI)
Publisher: name: Unknown
Year: 2007
Subjects: subject: Crop Production/Industries
subject: Food Consumption/Nutrition/Food Safety
subject: International Relations/Trade
subject: Food production
subject: Trade
subject: Water conservation

description: This Water Policy Briefing is based on the CA Research Report 4: Does International Cereal Trade Save Water? The Impact of Virtual Water Trade on Global Water Use (CA Research Report 4) by Charlotte de Fraiture, Ximing Cai, Upali Amarasinghe, Mark Rosegrant and David Molden; and on Investing in Water for Food, Ecosystems and Livelihoods (BLUE PAPER, Stockholm 2004, Discussion Draft) by David Molden and Charlotte de Fraiture; and on Is Virtual Water Trade a Solution for Water Scarce Countries? by Charlotte de Fraiture and David Molden, Bridges 2004. By the year 2050 there will be an additional 3 billion people to feed. Food production may need to increase by 70-90 percent from levels in 2000 to meet this global food demand. Without improvements in the efficiency and productivity of agricultural water use, crop water consumption would have to grow by the same order of magnitude. A big challenge in water management is to grow sufficient food for a growing and more affluent population while meeting the many other demands on limited water resources—household needs, industrial requirements and environmental functions. Already, an estimated 20% of the global population lives in river basins that are characterized by physical water scarcity. International food trade can have significant impacts on national water demand. The term ‘virtual water’, first introduced by Allan (1998), refers to the volume of water used to produce traded crops. By importing food a country ‘saves’ the amount of water it would have required to produce it on its own soil. Thus, international food trade can have important mpacts on how and where water is used. Food trade reduces water use at two levels. At a national level, a country reduces water use by importing food rather than producing it. At a global level, trade reduces water use because, at present, production in exporting countries is more water efficient than in importing countries. Moreover, four of the five major grain exporters produce under highly productive rainfed conditions while importing countries would have relied more on irrigation. In fact, without cereal trade, global irrigation water demand would have been higher by 11%. Some researchers have suggested that international food trade can and should be used as an active policy instrument to mitigate local and regional water scarcity. They contend that, instead of striving for food self-sufficiency, water short countries should import food from water abundant countries. Indeed, food trade has a large potential to alleviate water scarcity, but in practice there are many reasons why this is unlikely to happen in the near future.
Electronic supplementary material, figures tables and detailed statistics/method description from Urban moth communities suggest that life in the city favours thermophilic multi-dimensional generalists
Creators: name: Franzén, Markus
name: Per-Eric Betzholtz
name: Pettersson, Lars B.
name: Forsman, Anders
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Biodiversity is challenged worldwide by exploitation, global warming, changes in land use and increasing urbanization. It is hypothesized that communities in urban areas should consist primarily of generalist species with broad niches that are able to cope with novel, variable, fragmented, warmer and unpredictable environments shaped by human pressures. We surveyed moth communities in three cities in northern Europe and compared them with neighbouring moth assemblages constituting species pools of potential colonizers. We found that urban moth communities consisted of multi-dimensional generalist species that had larger distribution ranges, more variable colour patterns, longer reproductive seasons, broader diets, were more likely to overwinter as an egg, more thermophilic, and occupied more habitat types compared with moth communities in surrounding areas. When body size was analysed separately, results indicated that city occupancy was associated with larger size, but this effect disappeared when body size was analysed together with the other traits. Our findings indicate that urbanization imposes a spatial filtering process in favour of thermophilic species characterized by high intraspecific diversity and multi-dimensional generalist lifestyles over specialized species with narrow niches.
Factors that influence faculty uptake and continued use of course management systems
Creators: name: D’Silva, Reginald
Publisher: name: University of British Columbia
Year: 2009

description: Course Management Systems (CMS), central to the online learning experience, are instructional tools that offer educators innovative pedagogical choices in delivering classroom content. However, it is critical, for institutions that have recognized learning technologies such as CMS as part of their strategic plans, to be engaged in understanding the issues that surround faculty adoption and use of such technologies. Factors influencing uptake and use of Course Management Systems (CMS) were studied through responses collected from an online survey and subsequent interviews with faculty members at The University of British Columbia (UBC). 43 faculty members from professorial ranks, 33 users and 10 nonusers of WebCT, participated in an online survey. Five users and one non-user, from these participants, were also interviewed. In addition, three administrators, who are in technical support roles, were interviewed. The survey and subsequent interviews were carried out between January and April 2005. Faculty members were from faculties and schools ranging from Arts to the Applied Sciences. A majority of faculty members surveyed rated availability of time, time taken in course set-up and delivery and students' interests as the top three factors that influence uptake and use of CMS. Reliable and effective technical support, technology related factors i.e. complexity or inflexibility of the course management tool and pedagogical implications are also major factors. Faculty members' perceptions, views, and concerns in the uptake and use of CMS were also uncovered through this study.
Improving performance and financial viability of irrigation systems in India and China
Creators: name: International Water Management Institute (IWMI)
name: International Water Management Institute (IWMI)
Publisher: name: Unknown
Year: 2006
Subjects: subject: Resource /Energy Economics and Policy
subject: Irrigation systems
subject: Groundwater irrigation
subject: Energy
subject: Cost recovery

description: China and India face similar challenges in managing their irrigation economies. Both are developing nations with large agricultural populations, high population densities and a high proportion of agriculture under irrigation. Both are facing challenges in financing existing irrigation systems in the face of broader economic reforms. And in both countries, groundwater provides a particular challenge since it is a major source of irrigation, but with accelerating declines in both quantity and quality. Problems in financing surface irrigation systems, worries about continued groundwater table declines along with cost implications for both farmers and the energy industry, and a range of other issues have raised serious concerns over the future sustainability of irrigated systems and food security. As a result, there is now near unanimous agreement in both countries on the need to formulate practical strategies to manage the future of their irrigation economies. India and China are trying different paths when responding to their water problems and the management of public and private irrigation infrastructure. Yet, China’s experience with alternative institutional arrangements could provide useful direction to India’s equally complex surface and groundwater irrigation systems.
Improving water productivity: how do we get more crop from every drop?
Creators: name: International Water Management Institute (IWMI)
name: Comprehensive Assessment Of Water Management In Agriculture
name: International Water Management Institute (IWMI)
name: Comprehensive Assessment Of Water Management In Agriculture
Publisher: name: Unknown
Year: 2003
Subjects: subject: Crop Production/Industries
subject: Productivity Analysis
subject: Water management
subject: Productivity
subject: Irrigation management
subject: Supplemental irrigation
subject: Crop production

description: Based on research presented in the book “Water Productivity in Agriculture : Limits and Opportunities for Improvement” by J.W. Kijne, R. Barker and D. Molden. If current trends continue, the water crisis—which is already beginning to rear its head in many countries through depleted groundwater aquifers, dried-up rivers and wetlands, and frequent water shortages—will indeed become a global problem. A recent study by the International Food Policy Research Institute (IFPRI) and the International Water Management Institute (IWMI) projects that if present trends continue, by 2025 competition from growing cities and industry worldwide will limit the amount of water available for irrigation, causing annual global losses of 350 million metric tons of food production - slightly more than the entire current U.S. grain crop. The environment will also sustain further damage, as water from this already thirsty sector is diverted to agriculture, households and industry. If levels of investment in sustainable water policy and management decrease over the next 20 years, the result will be major declines in food production and skyrocketing food prices. research done over the past decade shows that by improving the productivity of water on irrigated and rain-fed lands, we can have enough water for cities, industry and nature. But this requires a commitment to institutional and management reforms, and substantial investment in crop research, technology, and infrastructure.
Additional file 1 of BugSeq: a highly accurate cloud platform for long-read metagenomic analyses
Creators: name: Fan, Jeremy
name: Huang, Steven
name: Chorlton, Samuel D.
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 1. Supplementary methods, and supplementary tables 1-2.
Token-curated registry (TCR) in a scholarly journal: blockchain meets invisible colleges
Creators: name: Kosmarski, Artyom
name: Gordiychuk, Nikolay
Publisher: name: arXiv
Year: 2020
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: In this paper, we propose a novel framework for a scholarly journal, a token-curated registry (TCR). This model originates in the field of blockchain and cryptoeconomics and is essentially a decentralized system where tokens (digital currency) are used to incentivize quality curation of information. TCR is an automated way to create lists of any kind where decisions (whether to include N or not) are made through voting that brings benefit or loss to voters. In an academic journal, TCR could act as a tool to introduce community-driven decisions on papers to be published, thus encouraging more active participation of authors and reviewers in editorial policy and elaborating the idea of a journal as a club. TCR could also provide a novel solution to the problems of editorial bias and the lack of rewards/incentives for reviewers. In the paper, we discuss core principles of TCR, its technological and cultural foundations, and finally analyze the risks and challenges it could bring to scholarly publishing.
The Impact of Indirect Machine Translation on Sentiment Classification
Creators: name: Poncelas, Alberto
name: Lohar, Pintu
name: Way, Andy
name: Hadley, James
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Sentiment classification has been crucial for many natural language processing (NLP) applications, such as the analysis of movie reviews, tweets, or customer feedback. A sufficiently large amount of data is required to build a robust sentiment classification system. However, such resources are not always available for all domains or for all languages. In this work, we propose employing a machine translation (MT) system to translate customer feedback into another language to investigate in which cases translated sentences can have a positive or negative impact on an automatic sentiment classifier. Furthermore, as performing a direct translation is not always possible, we explore the performance of automatic classifiers on sentences that have been translated using a pivot MT system. We conduct several experiments using the above approaches to analyse the performance of our proposed sentiment classification system and discuss the advantages and drawbacks of classifying translated sentences.
Irrigation management transfer: how to make it work for Africa’s smallholders?
Creators: name: International Water Management Institute (IWMI)
name: International Water Management Institute (IWMI)
Publisher: name: Unknown
Year: 2003
Subjects: subject: Farm Management
subject: Water management
subject: Privatization
subject: Small scale systems
subject: Small holders

description: Based on research presented in “Institutional Alternatives in African Smallholder Irrigation: :Lessons from International Experience with Irrigation Management Transfer (IWMI Research Report 60)” by Tushaar Shah, Barbara van Koppen, Marna de Lange, Madar Samad, and Douglas Merrey. An international review of IMT experiences shows that for transfer to work, the irrigation system must be central to a wealth-creating agriculture within which IMT makes good economic sense to farmers. This is not the case in a majority of Africa’s smallholder schemes. Making IMT work in this context means addressing a number of challenges: smallholder dependency resulting from years of state intervention in farm operations and management, farmers’ inability to depend on irrigated agriculture as their primary income source, insecure land tenure arrangements, and lack of access to credit and input and output markets Current IMT strategies which focus on investments in capacity-building and infrastructure rehabilitation alone are destined to fail. For IMT to succeed, it must be accompanied by interventions that extend beyond the irrigation sector to significantly enhance African smallholder productivity and incomes. Potential avenues for accomplishing this include strengthening access to markets and credit, promoting high-value crops, improving systems for extension and technical support, making investments in smallholder technologies, clarifying land tenure arrangements, encouraging the development of farm equity schemes, and providing necessary supports through farmers’ associations.
Central Masses and Broad-Line Region Sizes of Active Galactic Nuclei. II. A Homogeneous Analysis of a Large Reverberation-Mapping Database
Creators: name: Peterson, B. M.
name: Ferrarese, L.
name: Gilbert, K. M.
name: Kaspi, S.
name: Malkan, M. A.
name: Maoz, D.
name: Merritt, D.
name: Netzer, H.
name: Onken, C. A.
name: Pogge, R. W.
name: Vestergaard, M.
name: Wandel, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present improved black hole masses for 35 active galactic nuclei (AGNs) based on a complete and consistent reanalysis of broad emission-line reverberation-mapping data. From objects with multiple line measurements, we find that the highest precision measure of the virial product is obtained by using the cross-correlation function centroid (as opposed to the cross-correlation function peak) for the time delay and the line dispersion (as opposed to full width half maximum) for the line width and by measuring the line width in the variable part of the spectrum. Accurate line-width measurement depends critically on avoiding contaminating features, in particular the narrow components of the emission lines. We find that the precision (or random component of the error) of reverberation-based black hole mass measurements is typically around 30%, comparable to the precision attained in measurement of black hole masses in quiescent galaxies by gas or stellar dynamical methods. Based on results presented in a companion paper by Onken et al., we provide a zero-point calibration for the reverberation-based black hole mass scale by using the relationship between black hole mass and host-galaxy bulge velocity dispersion. The scatter around this relationship implies that the typical systematic uncertainties in reverberation-based black hole masses are smaller than a factor of three. We present a preliminary version of a mass-luminosity relationship that is much better defined than any previous attempt. Scatter about the mass-luminosity relationship for these AGNs appears to be real and could be correlated with either Eddington ratio or object inclination.
description: 61 pages, including 8 Tables and 16 Figures. Accepted for publication in The Astrophysical Journal
Spin-phonon interaction induces tunnel splitting in single-molecule magnets
Creators: name: Irländer, K.
name: Schnack, J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Quantum tunneling of the magnetization is a major obstacle to the use of single-molecule magnets (SMMs) as basic constituents of next-generation storage devices. In this context, phonons are often only considered (perturbatively) as disturbances that promote the spin system to traverse the anisotropy barrier. Here, we demonstrate the ability of phonons to induce a tunnel splitting of the ground doublet which then reduces the required bistability due to Landau-Zener tunneling of the magnetization. Harmful are those phonons that modify the spin Hamiltonian so that its rotational symmetry about the field axis is destroyed. In our calculations we treat spins and phonons on the same footing by performing quantum calculations of a Hamiltonian where the single-anisotropy tensors are coupled to harmonic oscillators.
description: 6 pages, 7 figures, submitted
Testing the Master Constraint Programme for Loop Quantum Gravity V. Interacting Field Theories
Creators: name: Dittrich, Bianca
name: Thiemann, Thomas
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: This is the final fifth paper in our series of five in which we test the Master Constraint Programme for solving the Hamiltonian constraint in Loop Quantum Gravity. Here we consider interacting quantum field theories, specificlly we consider the non -- Abelean Gauss constraints of Einstein -- Yang -- Mills theory and 2+1 gravity. Interestingly, while Yang -- Mills theory in 4D is not yet rigorously defined as an ordinary (Wightman) quantum field theory on Minkowski space, in background independent quantum field theories such as Loop Quantum Gravity (LQG) this might become possible by working in a new, background independent representation.
description: 20 pages, no figures
MAXSUS MODELLASHTIRISH USULLARINING  NOTEKIS TAQSIMOTI.
Creators: name: Mirzaakbarova, M.K.
Publisher: name: Zenodo
Year: 2024

description: Mazkur maqolada matematik modellashtirishga taaluqli bo’lgan maxsus modellashtirish usullarining notekis taqsimoti keltirilgan bo’lib, Smirnovning  doimiy ordinata usuli tarqatish xususiyatlarini haqida, Puassonning normal va oddiy bog’liqlik taqsimotlari, Proxorov va Rozanov munosabatlari va ko'rsatkich taqsimoti haqida batafsil xisoblashlar amalga oshirilgan.
A descriptive Catalogue of Valuable Manuscripts and Rare Books from China
Creators: name: Wang, Yi-T'ung, 1914-
Publisher: name: Vancouver : University of British Columbia Library
Year: 2015

description: Issued during the Sung, Yuan, and Ming Dynasties (960-1644) In the Library of the University of British Columbia Being the P'u-pan Collection Brought together by Mr. Yao Chun-shih of Macao
Two new copper(II) complexes based on 4-(1H-1,2,4-triazol-1-yl)phenol and different co-ligands: synthesis, crystal structures, luminescent properties and magnetic behavior
Creators: name: Zhao, Hong-Kun
name: Yang, Han-Wen
name: Liu, Zhong-Yi
name: Xiu-Guang Wang
name: En-Cui Yang
name: Zhao, Xiao-Jun
name: Jia, Fang
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: Two 4-(1H-1,2,4-triazol-1-yl)phenol (hptrz)-based transition metal complexes with different aromatic polycarboxylic acids as co-ligands, {[Cu2(H2O)4(hptrz)2(btec)]⋅2H2O}n (1) and [Cu(hptrz)2 (H2btc)2]·H2O (2) (H4btec = benzene-1,2,4,5-tetracarboxylic acid, H3btc = benzene-1,3,5-tricarboxylic acid), have been obtained, which were structurally characterized by single-crystal X-ray diffraction, elemental analysis, FT-IR spectra, thermogravimetric curves and luminescence spectra in detail. Structural analysis reveals that 1 is a 1-D infinite chain framework extended by btec4– anions, whereas 2 is isolated centrosymmetric mononuclear entities. In contrast, the neutral hptrz is a terminal ligand to complete the metal coordination sphere and it also helps to assemble the low-dimensional coordination sphere into a high-dimensional supramolecular architecture by O–H···O hydrogen-bonding interactions. Additionally, the high stability and luminescence emission suggest that 1 and 2 are good candidates for light emission materials. The magnetic features of 1 may be due to weak antiferromagnetic coupling between CuII ions which are separated by btec4– anions.
MiniBooNE and Sterile Neutrinos
Creators: name: Shaevitz, M. H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Sterile neutrinos may be an important extension to the standard model, and could both hold the key to understanding neutrino mass and mixing as well as play an important role in leptogenesis. In many models, the sterile neutrinos could be light and accessible to current and near term experiments. The MiniBooNE experiment is set up to explore these possibilities in the $Δm^{2}$ region from 0.3 to a few eV$^{2}$ where the LSND experiment has reported a $\barν_{e}$ appearance signal. This report will outline some of these extensions, give the status and prospects for the MiniBooNE experiment, and explore future investigations if MiniBooNE sees an oscillation signal.
description: Prepared for the Fujihara Seminar: Neutrino Mass and the Seesaw Mechanism, KEK, Japan, February, 2004. 13 pages, 19 figures
New results on superconformal quivers
Creators: name: Benvenuti, Sergio
name: Hanany, Amihay
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: All superconformal quivers are shown to satisfy the relation c = a and are thus good candidates for being the field theory living on D3 branes probing CY singularities. We systematically study 3 block and 4 block chiral quivers which admit a superconformal fixed point of the RG equation. Most of these theories are known to arise as living on D3 branes at a singular CY manifold, namely complex cones over del Pezzo surfaces. In the process we find a procedure of getting a new superconformal quiver from a known one. This procedure is termed "shrinking" and, in the 3 block case, leads to the discovery of two new models. Thus, the number of superconformal 3 block quivers is 16 rather than the previously known 14. We prove that this list exausts all the possibilities. We suggest that all rank 2 chiral quivers are either del Pezzo quivers or can be obtained by shrinking a del Pezzo quiver and verify this statement for all 4 block quivers, where a lot of "shrunk'' del Pezzo models exist.
description: 51 pages, many figures
Bipolaron formed through electron-hole excitation
Creators: name: Wu, Chen-Huan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We investigate the electronic properties and electron correlations of the bipolaron formed by the electron-hole excitations in the presence of Yukawa-type coupling (between nonrelativistic fermions) in three spatial dimension. The electron-hole excitation, which is necessary to the formation of bipolaron, leads to imaginary particle-hole order parameter, and provide finite boson field mass to the single-polaron dispersion in a broken-symmetry phase. We found that the bipolaron exhibits fermi-liquid features as long as the long-range strong interaction is suppressed, and it behave differently compared to the single-polaron. The bosonic momentum determines the mass of boson field propagator and the gap function, and it also related to the self-energies and the single-particle Green's functions. The Thouless criterion is also used during the calculation of gap equation at critical temperature (which become lower in weak-coupling regime), which corresponds to the pole (instability) of the pair propagator in zero center-of-mass freamwork. The mean field term and the bosonic fluctuation-induced contribution to free energy of bipolaron are also studied.
Hyperfine interaction and coherence time of praseodymium ions at the site 2 in yttrium orthosilicate
Creators: name: Xiao, Yi-Xin
name: Zhou, Zong-Quan
name: Ma, Yu
name: Yang, Tian-Shu
name: Ma, You-Zhi
name: Li, Chuan-Feng
name: Guo, Guang-Can
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Praseodymium (Pr$^{3+}$) ions doped in the site 1 of yttrium orthosilicate (Y$_2$SiO$_5$) has been widely employed as the photonic quantum memory due to their excellent optical coherence and spin coherence. While praseodymium ions occupying the site 2 in Y$_2$SiO$_5$ crystal have better optical coherence as compared with those at site 1, which may enable better performance in quantum memory. Here we experimentally characterize the hyperfine interactions of the ground state $^3$H$_4$ and excited state $^1$D$_2$ of Pr$^{3+}$ at site 2 in Y$_2$SiO$_5$ using Raman heterodyne detected nuclear magnetic resonance. The Hamiltonians for the hyperfine interaction are reconstructed for both ground state $^3$H$_4$ and excited state $^1$D$_2$ based on the Raman heterodyne spectra in 201 magnetic fields. The two-pulse spin-echo coherence lifetime for the ground state is measured to be 2.6$\pm$0.1 ms at site 2 with zero magnetic field, which is more than five times longer than that at site 1. The magnetic fields with zero first order Zeeman shift in the hyperfine transition for Pr$^{3+}$ at site 2 in Y$_2$SiO$_5$ are identified.
Topological Terms and Diffeomorphism Anomalies in Fluid Dynamics and Sigma Models
Creators: name: Nair, V. P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The requirement of diffeomorphism symmetry for the target space can lead to anomalous commutators for the energy-momentum tensor for sigma models and for fluid dynamics, if certain topological terms are added to the action. We analyze several examples . A particular topological term is shown to lead to the known effective hydrodynamics of a dense collection of vortices, i.e. the vortex fluid theory in 2+1 dimensions. The possibility of a similar vortex fluid in 3+1 dimensions, as well as a fluid of knots and links, with possible extended diffeomorphism algebras is also discussed.
description: 23 pages
"Where is the meter" : an investigation on rhythmic process in Björk’s music
Creators: name: Eggertson, Kristine Sessalja
Publisher: name: University of British Columbia
Year: 2009

description: Björk uses many rhythmic techniques typically found in popular music, such as repetition and syncopation, and is a talented composer who carefully crafts the details in her compositions. This paper will describe and explore some rhythmic and metric innovations found in her songs "Where is the Line?" and "Undo." In order to analyze her music, I must turn to primarily the theories and analyses of classical and art music. I will show how Björk uses techniques such as parallelism, hypermeter, metric shift, and projection of a late entry, to both create and destroy metric sensations in her music.
IWRM challenges in developing countries: lessons from India and elsewhere
Creators: name: International Water Management Institute (IWMI)
name: International Water Management Institute (IWMI)
Publisher: name: Unknown
Year: 2007
Subjects: subject: Farm Management
subject: Institutional and Behavioral Economics
subject: Water resource management
subject: Institutional development
subject: Tube wells
subject: Economic aspects
subject: Policy

description: Developing countries like India are actively being encouraged to move from the traditional supply-side orientation towards proactive demand management under the broad framework of Integrated Water Resources Management (IWRM). Integrated Water Resources Management (IWRM) is a sound philosophy which is hard to disagree with. However, in developing countries, what usually gets passed-off in the name of IWRM at the operational level takes a rather narrow view of the philosophy and has largely tended to include a blue-print package including: [1] A national water policy; [2] A water law and regulatory framework; [3] Recognition of River Basin as the appropriate unit of water and land resources planning and management; [4] Treating water as an economic good; and [5] Participatory water resource management. Several of these mark a significant shift from current paradigms and making this transition is proving to be difficult. Drafting new water laws is easy; enforcing them is not. Renaming regional water departments as basin organizations is easy; but managing water resources at basin level is not. Declaring water an economic good is simple; but using price mechanisms to direct water to high-value uses is proving complex. As a consequence, the so-called IWRM initiatives in developing country contexts have proved to be ineffective at best and counterproductive at worst.
Effects of internal fluctuations on the spreading of Hantavirus
Creators: name: Escudero, C.
name: Buceta, J.
name: de la Rubia, F. J.
name: Lindenberg, Katja
Publisher: name: arXiv
Year: 2004
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: We study the spread of Hantavirus over a host population of deer mice using a population dynamics model. We show that taking into account the internal fluctuations in the mouse population due to its discrete character strongly alters the behaviour of the system. In addition to the familiar transition present in the deterministic model, the inclusion of internal fluctuations leads to the emergence of an additional deterministically hidden transition. We determine parameter values that lead to maximal propagation of the disease, and discuss some implications for disease prevention policies.
Additional file 1 of What are the impact and the optimal design of a physical prehabilitation program in patients with esophagogastric cancer awaiting surgery? A systematic review
Creators: name: Piraux, Elise
name: Reychler, Gregory
name: Noordhout, Louise Maertens De
name: Forget, Patrice
name: Deswysen, Yannick
name: Caty, Gilles
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 1. . Search Strategies used in the four databases
Removing the Wess Zumino fields in the BFFT formalism
Creators: name: Neto, Jorge Ananias
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we give some prescriptions in order to remove the Wess Zumino fields of the BFFT formalism and, consequently, we derive a gauge invariant system written only in terms of the original second class phase space variables. Here, the Wess Zumino fields are considered only as auxiliary variables that permit us to reveal the underlying symmetries present in a second class system. We apply our formalism in three important and illustrative constrained systems which are the Chern Simons Proca theory, the Abelian Proca model and the reduced SU(2) Skyrme model.
description: revised version
Matter-gravity coupling for fuzzy geometry and the Landau-Hall problem
Creators: name: Nair, V. P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider a set of physical degrees of freedom coupled to a finite-dimensional Hilbert space, which may be taken as modeling a fuzzy space or as the lowest Landau level of a Landau-Hall problem. These may be viewed as matter fields on a fuzzy space. Sequentially generalizing to arbitrary backgrounds, we argue that the effective action is given by the Chern-Simons form associated with the Dirac index density (with gauge and gravitational fields), with an abelian gauge field shifted by the Poincaré-Cartan form for matter dynamics. The result is an action for matter fields where the Lagrangian is integrated with a density which is a specific polynomial in the curvatures.
description: 20 pages
Planning groundwater use for sustainable rural development
Creators: name: International Water Management Institute (IWMI)
name: International Water Management Institute (IWMI)
Publisher: name: Unknown
Year: 2005
Subjects: subject: Crop Production/Industries
subject: Farm Management
subject: Groundwater management
subject: Rural development
subject: Wells
subject: Aquifers
subject: Surface water
subject: Conjunctive use
subject: Irrigation water
subject: Water pollution

description: Groundwater use is rapidly increasing in Sri Lanka, bringing several benefits to small farmers—by allowing them to grow more crops, minimize the impact of droughts, and profit from selling high-value produce. But how can this be sustained? Lessons learned from other countries with longer histories of groundwater use can help policymakers, planners, and development organizations avoid the pitfalls and dangers of indiscriminate use, and capture the benefits that groundwater can bring.
Correlated isocurvature perturbations from mixed inflaton-curvaton decay
Creators: name: Ferrer, Francesc
name: Rasanen, Syksy
name: Valiviita, Jussi
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study cosmological perturbations in the case that present-day matter consists of a mixture of inflaton and curvaton decay products. We calculate how the curvaton perturbations are transferred to its decay products in the general case when it does not behave like dust. Taking into account that the decay products of the inflaton can also have perturbations results in an interesting mixture of correlated adiabatic and isocurvature perturbations. In particular, negative correlation can improve the fit to the CMB data by lowering the angular power in the Sachs-Wolfe plateau without changing the peak structure. We do an 11-parameter fit to the WMAP data. We find that the best-fit is not the 'concordance model', and that well-fitting models do not cluster around the best-fit, so that cosmological parameters cannot be reliably estimated. We also find that in our model the mean quadrupole (l=2) power is l(l+1) C_l/2pi = 1081 muK^2, much lower than in the pure adiabatic LCDM model, which gives 1262 muK^2.
description: 34 pages, 6 figures, JCAP-style. v2: Version accepted for publication. No major changes: less typos, one more comment on the SDSS, longer abstract