cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Reflection on All Africa Conference on Assuring Food and Nutrition Security in Africa by 2020
Creators: name: Otim, John Joseph
name: Otim, John Joseph
Publisher: name: Unknown
Year: 2004
Subjects: Food Security and Poverty

description: The momentum generated by the Kampala 2020 All Africa Conference output together with the follow up activities have had positive impact on many African governments, regional institutions and internationally. Among its many positive outcomes, the Conference has served to put the issues of food and nutrition security squarely on the African development Agenda by underscoring its critical role in healthy lives, in particular the management of HIV/AIDS. It also recognized that food and nutrition security is inextricably linked not just to traditional agriculture but also development in education, natural resources management, infrastructures, market information systems, micro and macro-economic conditions and trade. Of significant importance is the accelerated integration of food and nutrition security into broader agricultural development programs by regional institutions (COMESA, IGAD, SADC, ECOWAS, EAC, North Africa Regional body and continental body, (NEPAD in its CAADP and AU Commission) as well as into national agricultural modernization programs. The identification of commodity successes and community bright spots for replication across the continent should help avoid duplication and can speed up the rate of achieving food and nutrition security in Africa. Food safety and quality issues are essential component of access to markets and trade at international, regional and national levels. It is therefore, imperative to develop the 3Cs competitiveness of supply capacities, conformity with market requirements and connectivity to markets to accelerate regional and international trade in food and foodstuff. However, there are challenges that need to be overcome in order to tackle the tasks of achieving food and nutrition security. These challenges include budget allocation to agriculture nutrition; developing partnership with clear roles, capacity building of stakeholders and institutions; empowering of organized communities for contract farming and trade; change in attitude; scaling up research and technology development and transformation of Africa's home grown private entrepreneurs into true responsible private sector. All the above challenges call for enlightened and committed political leadership and responsible law makers working in partnership with all stakeholders to propel the processes of achieving food and nutrition security in Africa by 2020 under stable, peaceful and conducive policy environment.
Toward an understanding of the periastron puzzle of PSR B1259-63
Creators: name: Xu, R. X.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Efforts are made to understand the timing behaviors (e.g., the jumps of the projected pulsar semimajor axis in the periastron passages) observed via 13-year timing for PSR B1259-63. In the first, planet-like objects are suggested to orbit around the Be star, which may gravitationally perturb the (probably low mass) pulsar when it passes through periastron. Second, an accretion disk should exist outside the pulsar's light cylinder, which creates a spindown torque on the pulsar due to the propeller effect. The observed negative braking index and the discrepant timing residuals close to periastron could be relevant to the existence of the disk with varying accretion rates. Third, a speculation is presented that the accretion rate may increase on a long timescale in order to explain the negative braking index.
description: Revised version submitted to ChJAA
Social Capital and Soil Erosion Control in Agriculturally Marginal Areas of Kenya: The Case of Machakos and Taita-Taveta Districts
Creators: name: Obare, Gideon A.
name: Mwakubo, Samuel M.
name: Ouma, Emily Awuor
name: Mohammed, Lutta
name: Omiti, John M.
name: Obare, Gideon A.
name: Mwakubo, Samuel M.
name: Ouma, Emily Awuor
name: Mohammed, Lutta
name: Omiti, John M.
Publisher: name: Unknown
Year: 2004
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Social capital
subject: Marginal areas
subject: Soil erosion
subject: Perception
subject: Two-step estimation
subject: Kenya

description: This paper evaluates the farmers' perception of the soil erosion problem, and identifies and analyses social capital elements that motivate households to actively participate in soil conservation in agricultural production process. The data used in the study was generated using a structured questionnaire in a survey that covered 321 households in Kenya's semi arid districts of Machakos and Taita-Taveta Districts. Two modelling strategies were used: A Probit model was used to estimate the likelihoods of factors that may influence farmers' perception of soil erosion problem, and a Tobit to estimate parameters of factors that influence terracing intensity. The results indicate that although perception of the soil erosion problem is relatively high in the study sites, its effect on soil conservation investments is not significant. In Machakos, the significant determinants of terracing intensity include land tenure, crop area, household size, and membership diversity whereas in Taita-Taveta they include age of household head and consumer-worker ratio. Results from the aggregated data show that lagged crop output, group membership density and diversity, cognitive social capital and location significantly influence the terracing intensity on farm household fields. The policy challenge is to establish and strengthen social capital elements that have a strong influence on communities undertaking soil erosion control measures for sustainable agriculture and rural development.
RF Reflectometry for Readout of Charge Transition in a Physically Defined PMOS Silicon Quantum Dot
Creators: name: Bugu, Sinan
name: Nishiyama, Shimpei
name: Kato, Kimihiko
name: Liu, Yongxun
name: Mori, Takahiro
name: Kodera, Tetsuo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have embedded a physically defined p-channel silicon MOS quantum dot (QD) device into an impedance transformer RC circuit. To decrease the parasitic capacitance and surpass the cutoff frequency of the device which emerges in MOS devices that have a top gate and act as RC low-pass filter, we fabricate a new device to reduce the device's top gate area from 400 $\mbox{$μ$m}^2$ to 0.09 $\mbox{$μ$m}^2$. Having a smaller top gate eliminates the cutoff frequency problem preventing the RF signal from reaching QD. We show that we have fabricated a single QD properly, which is essential for RF single-electron transistor technique. We also analyze and improve the impedance matching condition and show that it is possible to perform readout of charge transition at 4.2 K by RF reflectometry, which will get us to fast readout of charge and spin states.
description: 11 pages, 6 figures
Efficient generation of contour trees in three dimensions
Creators: name: Carr, Hamish
Publisher: name: University of British Columbia
Year: 2009

description: Many scientific fields generate data in three-dimensional space. These fields include fluid dynamics, medical imaging, and X-ray crystallography. In all contexts, a common difficulty exists: how best to represent the data visually and analytically. One approach involves generating level sets: two-dimensional surfaces consisting of all points with a given value in the space. With large datasets common, efficient generation of these level sets is critical. Several methods exist: one such is the contour tree approach used by van Kreveld et al. [26]. This thesis extends the results of van Kreveld et al. [26] and Tarasov & Vyalyi [23]. An efficient algorithm for generating contour trees in any number of dimensions is presented, followed by details of an implementation in three dimensions.
MASOFAVIY TA'LIM TIZIMIDA QO'LLANILAYOTGAN ILG'OR PEDAGOGIK TEXNOLOGIYA BOSQICHLARI
Creators: name: Usmonova, Nargiza
Publisher: name: Zenodo
Year: 2024

description: Hozirgi axborot asrida ta’lim tizimining sifati va miqdori o’quvchining o’quv jarayonidagi ehtiyojlarini qondira olmaydi. Shunday ekan, innovatsion texnologiyalar asosida yaratilgan masofaviy ta’lim qo’shimcha ta’lim tizimi sifatida uni asosiy ta’lim bilan to’ldirishning oson yo’lidir. Innovatsion texnologiyalarning bugungi rivojlanishi dolzarb muammolarni o’z vaqtida hal qilish yo’llarini ochib beradi.
Exporting Kenya's Horticultural Products: Challenges and Opportunities in The 21st Century
Creators: name: Nyangweso, P.M.
name: Odhiambo, Mark O.
name: Nyangweso, P.M.
name: Odhiambo, Mark O.
Publisher: name: Unknown
Year: 2004
Subjects: subject: Crop Production/Industries
subject: Kenya
subject: Export Horticulture
subject: Challenges
subject: Opportunities

description: The horticultural export sector has experienced rapid growth since 1966 because of the active role by the private sector and minimum government intervention. The European Union is the largest consumer of Kenyan horticultural exports. Kenyan horticultural exports to the European Union accounted for 45 percent of the total exports in 2000. In recent years, horticultural export growth has declined. The quality of production has declined, following a reduction of the role of exporters in supporting production by small-scale farmers. This has reduced Kenya's competitiveness in the horticultural export market at time when the sector is faced with increased competition from other producer countries. The reform of the European Union Common Agricultural Policy (CAP) and other emerging issues in the on-going negotiations on the Agreement on Agriculture (AOA) at the World Trade Organization (WTO) present other pertinent issues as concerns expanded export horticulture. This paper, firstly, reviews the performance of the export horticulture over the last four decades, it delineates challenges facing export horticulture, it highlights opportunities available for expanded export horticulture and suggests measures for revitalizing the sub-sector. It concludes that, competition for the EU market will continue to intensify as the world opens up due to globalization. This calls for proper understanding of the existing and emerging threats to the Kenyan export horticulture. This will guide the development of both defensive and offensive strategies for not only survival in the EU market, but also venturing in non-traditional horticultural export markets. Such strategies would include (i) Education of producers to understand the EU import requirements which encompass both tariff and non-tariff measures, (ii) penetration of new markets in Asia, USA, and Africa,(iii) encouragement of organic farming where necessary, and (iv) creating an enabling environment for small scale farmers to access credit.
Double diffractive meson production and the BFKL Pomeron at $e^+e^-$ colliders
Creators: name: Goncalves, V. P.
name: Sauter, W. K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this Letter we study the double diffractive vector meson production in $e^+e^-$ collisions assuming the dominance of the BFKL pomeron exchange. We consider the non-forward solution of the BFKL equation at high energy and large momentum transfer and estimate the total cross section for the process $e^+e^- \to e^+e^- V_1 V_2$ with antitagged $e^+$ and $e^-$, where $V_1$ and $V_2$ can be any two vector mesons ($V_i = ρ, ω, ϕ, J/Ψ, Υ$). The event rates for the future linear colliders are given.
description: 8 pages, 1 figure, Version to be published in Physical Review D
Numerical Solutions of 2-D Steady Incompressible Flow in a Driven Skewed Cavity
Creators: name: Erturk, E.
name: Dursun, B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Numerical Analysis (math.NA)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The benchmark test case for non-orthogonal grid mesh, the "driven skewed cavity flow", first introduced by Demirdzic et al. (1992, IJNMF, 15, 329) for skew angles of alpha=30 and alpha=45, is reintroduced with a more variety of skew angles. The benchmark problem has non-orthogonal, skewed grid mesh with skew angle (alpha). The governing 2-D steady incompressible Navier-Stokes equations in general curvilinear coordinates are solved for the solution of driven skewed cavity flow with non-orthogonal grid mesh using a numerical method which is efficient and stable even at extreme skew angles. Highly accurate numerical solutions of the driven skewed cavity flow, solved using a fine grid (512x512) mesh, are presented for Reynolds number of 100 and 1000 for skew angles ranging between 15
Non-Orthogonal Multiple Access (NOMA) With Multiple Intelligent Reflecting Surfaces
Creators: name: Cheng, Yanyu
name: Li, Kwok Hung
name: Liu, Yuanwei
name: Teh, Kah Chan
name: Karagiannidis, George K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, non-orthogonal multiple access (NOMA) networks assisted by multiple intelligent reflecting surfaces (IRSs) with discrete phase shifts are investigated, in which each user device (UD) is served by an IRS to improve the quality of the received signal. Two scenarios are considered according to whether there is a direct link between the base station (BS) and each UD, and the outage performance is analyzed for each of them. Specifically, the asymptotic expressions for the upper and lower bounds of the outage probability in the high signal-to-noise ratio (SNR) regime are derived. Following that, the diversity order is obtained. It is shown that the use of discrete phase shifts does not degrade diversity order. More importantly, simulation results reveal that a 3-bit resolution for discrete phase shifts is sufficient to achieve near-optimal outage performance. Simulation results also imply the superiority of IRSs over full-duplex decode-and-forward relays.
description: Accepted for publication in the IEEE Transactions on Wireless Communications
PAVLONIYANI ASOSIY KASALLIKLARI VA QARSHI KURASHISH CHORA    TADBIRLARI
Creators: name: Erkayeva, Nurxon
name: Avazov, S.E
Publisher: name: Zenodo
Year: 2024

description: Pavlovniya – (lot.Paulównia) yoxud Odam ato daraxti, – Povlovniyadoshlar (Paulowniaceae) oilasiga mansub, daraxt. Bargi toʻkiladigan, baland boʻyli daraxt. Bargi yirik, taxminan 70 sm. Guli tojsimon, nim pushti, och siyohrang boʻladi. Tanasining diametri 1 metrgacha yetadi.
Abstract Value Iteration for Hierarchical Reinforcement Learning
Creators: name: Jothimurugan, Kishor
name: Bastani, Osbert
name: Alur, Rajeev
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We propose a novel hierarchical reinforcement learning framework for control with continuous state and action spaces. In our framework, the user specifies subgoal regions which are subsets of states; then, we (i) learn options that serve as transitions between these subgoal regions, and (ii) construct a high-level plan in the resulting abstract decision process (ADP). A key challenge is that the ADP may not be Markov, which we address by proposing two algorithms for planning in the ADP. Our first algorithm is conservative, allowing us to prove theoretical guarantees on its performance, which help inform the design of subgoal regions. Our second algorithm is a practical one that interweaves planning at the abstract level and learning at the concrete level. In our experiments, we demonstrate that our approach outperforms state-of-the-art hierarchical reinforcement learning algorithms on several challenging benchmarks.
Revisiting Estimation of Agricultural Production Function for Sustainable Agricultural Policies in Sub-Saharan Africa (SSA): Evidence from Togo.
Creators: name: Koffi-Tessio, Egnonto M.
name: Koffi-Tessio, Egnonto M.
Publisher: name: Unknown
Year: 2004
Subjects: Environmental Economics and Policy
Productivity Analysis

description: In Sub-Saharan Africa, the bulk of agricultural output is produced by small holder farmers who continue to depend on rainfall. As such, agricultural economists often use average rainfall as a summative environmental indicator in estimating agricultural production function. This methodology is flawed. A close scrutiny of agricultural practices /agronomic sciences reveals that agricultural output is more determined by rainfall distribution than average rainfall. This relationship is explored in the Togolese context. The conclusion reached is that, between 1965 and 1992, intra-annual rainfall distribution measured by its standard of deviation has not been relevant in explaining the variation of food production in Togo due to the continuous degradation of the ecosystems. This result provides additional information for improved decision making and calls for urgent account of environmental aspects in the formulation of sustainable agricultural policies in SSA.
Market and Coordination Failures in Poor Rural Economies: Policy Implications for Agricultural and Rural Development
Creators: name: Dorward, Andrew
name: Kydd, Jonathan
name: Poulton, Colin
name: Dorward, Andrew
name: Kydd, Jonathan
name: Poulton, Colin
Publisher: name: Unknown
Year: 2004
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: development
subject: coordination
subject: markets
subject: institutions

description: This paper argues that the disappointing outcomes of adjustment policies in poor rural economies, principally in sub-Saharan Africa, can be partly attributed to weaknesses in the neo-classical theory which underlies these polices and from associated failures to recognise structural changes (or transitions) in growing agricultural economies. After a brief description of agricultural policy changes in sub Saharan Africa, the mixed achievements of market liberalisation policies are explained using new institutional economic arguments regarding inherent difficulties in economic coordination in poor economies, difficulties which markets themselves cannot overcome. A novel framework is put forward for understanding coordination failure and integrating it with other causes of under-development, notably low levels of technical and institutional development and poor governance. The paper concludes by considering the implications of these arguments for development policies in different sub-Saharan economies.
Strategic Plan of the African Union Commission on Rural Economy and Agriculture
Creators: name: Tambi, Emmanuel N.
name: Tambi, Emmanuel N.
Publisher: name: Unknown
Year: 2004
Subjects: Community/Rural/Urban Development

description: African agriculture and the rural economy suffer from low productivity, limited diversification and continuous degradation. Sustainable development of agriculture and the rural economy is critical for ensuring food security and poverty reduction in Africa. The African Union Commission considers the development of agriculture and the rural economy as a necessary condition for promoting accelerated economic, social and political development, and for attaining its shared vision of building an integrated, prosperous and peaceful Africa, an Africa driven and managed by its own citizens and representing a dynamic force in the international arena. The Directorate of Rural Economy and Agriculture (REA) is one of eight portfolio Directorates of the Commission given the mandate to initiate, promote and facilitate the implementation of policies, strategies and programs that can contribute to the transformation of the rural economy by increasing agricultural productivity, conserving and protecting natural resources as well as enhancing environmental sustainability. To more efficiently and effectively contribute to the AU Commission's vision, the REA Directorate has an elaborate strategic plan that will guide its actions over the next four years (2004-2007). The plan identifies the strategic objectives and outputs to be achieved and defines the activities and strategies for accomplishing the outputs. It envisages actions that address four strategic objectives through six program areas. Successful implementation of the plan, it is believed, will help create enabling conditions and facilitate actions to improve agricultural productivity, reduce food insecurity and rural poverty as well as to ensure sustainable management of natural resources and the environment.
NEMIS TILIDAGI  MAQOL VA MATALLARNING OʻZBEK TILIDAGI MUQOBILLARI VA  TARJIMA QILISH USULLARI
Creators: name: Eshonqulova, M.T.
Publisher: name: Zenodo
Year: 2024

description: Maqolada nemis tilidagi maqol va matallar oʻzbek tilida oʻxshash yoki bir xil ma’no anglatadigan maqol va matallar bilan qiyosiy oʻrganilgan. 2 tildagi tarjimalar va muqobillar berilgan.
Explaining Poverty in Uganda: Evidence from the Uganda National Household Survey
Creators: name: Kraybill, David S.
name: Bashaasha, Bernard
name: Kraybill, David S.
name: Bashaasha, Bernard
Publisher: name: Unknown
Year: 2004
Subjects: Food Security and Poverty

description: The broad aim of the research was to establish a tool for identifying cost effective poverty alleviation strategies in Uganda. The objectives were to test hypotheses on causes of poverty in Uganda and to develop a poverty simulation model for policy analysis. Data for 9,710 households from the 2002/2003 Uganda National Household Survey (UNHS) was used to estimate a semi-log econometric model. The model included 19 households' level characteristics and 8 community level characteristics as explanatory variables. The dependent variable was the natural logarithm of household consumption per adult equivalent. The model was estimated at both national and regional (5 regions) by weighted least squares with robust variance. The results identified 8 particularly promising poverty reducing policies namely: expansion of formal employment, secondary education, reduction in population growth, rural electrification, off-farm activities, collateral free credit, telephone services and reducing distance to community services. The study highlights the policy implications of the results.
Search Process and Probabilistic Bifix Approach
Creators: name: Bajic, Dragana
name: Stefanovic, Cedomir
name: Vukobratovic, Dejan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Information Theory (cs.IT)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: An analytical approach to a search process is a mathematical prerequisite for digital synchronization acquisition analysis and optimization. A search is performed for an arbitrary set of sequences within random but not equiprobable L-ary data. This paper derives in detail an expression for probability distribution function, from which other statistical parameters - expected value and variance - can be obtained. The probabilistic nature of (cross-) bifix indicators is shown and application examples are outlined, ranging beyond the usual telecommunication field.
description: 4 pages, 2 figures, to appear in Proceedings of the 2005 IEEE International Symposium on Information Theory, Adelaide, Australia, September 4-9, 2005
Capillary fluctuations and energy dynamics for flow in porous media
Creators: name: McClure, James E.
name: Berg, Steffen
name: Armstrong, Ryan T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Capillary energy barriers have important consequences for immiscible fluid flow in porous media. We derive time-and-space averaging theory to account for non-equilibrium behavior and understand the role of athermal capillary fluctuations in the context of their relationship to larger scale phenomenological equations. The formulation resolves several key challenges associated with two-fluid flow in porous media: (1) geometric and thermodynamic quantities are constructed as smooth functions of time based on time-and space averages; (2) averaged thermodynamics are developed for films; (3) multi-scale fluctuation terms are identified, which account for transient behaviours of interfaces and films that occur due to pore-scale events; (4) geometric constraints are derived and imposed on the averaged thermodynamics; (5) a new constitutive model is proposed for capillary pressure dynamics that includes contributions from films; and (6) a time-and-space criterion for representative elementary volume (REV) is established based on capillary fluctuations. Capillary fluctuations are assessed quantitatively based on pore-scale simulations and experimental core-flooding data.
Variational wavefunctions for Sachdev-Ye-Kitaev models
Creators: name: Haldar, Arijit
name: Tavakol, Omid
name: Scaffidi, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Computational Complexity (cs.CC)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Given a class of $q$-local Hamiltonians, is it possible to find a simple variational state whose energy is a finite fraction of the ground state energy in the thermodynamic limit? Whereas product states often provide an affirmative answer in the case of bosonic (or qubit) models, we show that Gaussian states fail dramatically in the fermionic case, like for the Sachdev-Ye-Kitaev (SYK) models. This prompts us to propose a new class of wavefunctions for SYK models inspired by the variational coupled cluster algorithm. We introduce a static ("0+0D") large-$N$ field theory to study the energy, two-point correlators, and entanglement properties of these states. Most importantly, we demonstrate a finite disorder-averaged approximation ratio of $r \approx 0.62$ between the variational and ground state energy of SYK for $q=4$. Moreover, the variational states provide an exact description of spontaneous symmetry breaking in a related two-flavor SYK model.
description: 6 pages
Ground-state reference systems for expanding correlated fermions in one dimension
Creators: name: Heidrich-Meisner, F.
name: Rigol, M.
name: Muramatsu, A.
name: Feiguin, A. E.
name: Dagotto, E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the sudden expansion of strongly correlated fermions in a one-dimensional lattice, utilizing the time-dependent density-matrix renormalization group method. Our focus is on the behavior of experimental observables such as the density, the momentum distribution function, and the density and spin structure factors. As our main result, we show that correlations in the transient regime can be accurately described by equilibrium reference systems. In addition, we find that the expansion from a Mott insulator produces distinctive peaks in the momentum distribution function at |k| ~ pi/2, accompanied by the onset of power-law correlations.
description: 8 pages Revtex4, 7 eps-figures, minor changes, additional references, as published
The Effects of HIV/Aids on Agricultural Production and Poverty in Kenya
Creators: name: Ndirangu, Lydia K.
name: Kimalu, Paul
name: Ndirangu, Lydia K.
name: Kimalu, Paul
Publisher: name: Unknown
Year: 2004
Subjects: Food Security and Poverty
Health Economics and Policy

description: Although HIV/AIDS prevalence in Kenya has shown a downward trend in the recent years, it continues to impact negatively on agricultural production and food security in rural areas. The declining trends in crop production remain a challenge for development efforts. This study examines the extent to which AIDS has impacted on agricultural production, incomes and food security. Using a sample of 212 households, the study examines changes in welfare of households experiencing death and illness associated with HIV/AIDS condition. Poverty incidence and severity are observed to be higher among affected and non-affected households. The higher poverty levels among the affected cohort can partly be explained by lower crop and livestock production. In the absence of formal insurance mechanisms, medical costs take precedence over crop and livestock intensification; any credit that may be available goes to cater for medicare; the few assets available are disposed for purposes of meeting health needs. There is less land under crops and more fallow among the affected households. The effects are worse for farm households in the marginal areas an indication that there may be need for special programmes for arid and semiarid areas. Given that poverty seems to reinforce the spread of the HIV/AIDS and that once AIDS strikes it becomes a driver of poverty, the study adds further support to views that intervention strategies need to deal with poverty and HIV/AIDS problems concurrently.
Non-definability of rings of integers in most algebraic fields
Creators: name: Dittmann, Philip
name: Fehm, Arno
Publisher: name: arXiv
Year: 2020
Subjects: subject: Logic (math.LO)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11U09, 12L12

description: We show that the set of algebraic extensions $F$ of $\mathbb{Q}$ in which $\mathbb{Z}$ or the ring of integers $\mathcal{O}_F$ are definable is meager in the set of all algebraic extensions.
description: Added some remarks. Accepted for publication in the Notre Dame Journal of Formal Logic
Simplicial vs. Continuum String Theory and Loop Equations
Creators: name: Akhmedov, Emil T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive loop equations in a scalar matrix field theory. We discuss their solutions in terms of simplicial string theory -- the theory describing embeddings of two--dimensional simplicial complexes into the space--time of the matrix field theory. This relation between the loop equations and the simplicial string theory gives further arguments that favor one of the statements of the paper hep-th/0407018. The statement is that there is an equivalence between the partition function of the simplicial string theory and the functional integral in a continuum string theory -- the theory describing embeddings of smooth two--dimensional world--sheets into the space--time of the matrix field theory in question.
description: 6 pages
ARCHETYPAL PSYCHOLOGY IN THE CONTEXT OF THE ECO-HUMAN APPROACH
Creators: name: Kopytin Alexander
Publisher: name: Ecopoiesis: eco-human theory and practice
Year: 2020
Subjects: archetype
archetypal psychology
archetypal landscape
ecopoiesis
poiesis
psychoid
environment
ecohuman approach

description: This article examines the connection between the postulates and key theoretical positions of archetypal psychology and the eco-human multidisciplinary approach. The eco-human approach outlines the poietic nature of human beings, associated with their ability to shape the world in order to fulfill their needs and take care of environmental well-being with an aim to beauty. In order to demonstrate the proximity of the theoretical positions and tasks of archetypal psychology to those of the eco-human approach, the author examines human relationships to the environment and the subjectivity of the natural world. Archetypal images are considered in their relation to “archetypal natural environments” and their participation in the creative ecopoietic process.
Juhre, Arnim (hrsg.): Für ökumenische Solidarität
Creators: name: Kemper, Claus
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 26 Nr. 1 (1977): Ökumenische Rundschau, Band 26, Heft 1
A large deviation principle in many-body quantum dynamics
Creators: name: Kirkpatrick, Kay
name: Rademacher, Simone
name: Schlein, Benjamin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider the many-body quantum evolution of a factorized initial data, in the mean-field regime. We show that fluctuations around the limiting Hartree dynamics satisfy large deviation estimates, that are consistent with central limit theorems that have been established in the last years.
description: 21 pages, small changes in the introduction
A RESPONSE: SALLY ATKINS AND MELIA SNYDER “NATURE-BASED EXPRESSIVE ARTS THERAPY. INTEGRATING THE EXPRESSIVE ARTS AND ECOTHERAPY”. London and Philadelphia: Jessica Kingsley Publishers, 2017. — 176 p.
Creators: name: Levine, Stephen K.
Publisher: name: Ecopoiesis: eco-human theory and practice
Year: 2020
Subjects: environment
expressive arts therapy
nature-based

description: In his response to the book by Sally Atkins and Melia Snyder, Stephen K. Levine not only notes the high merits of their writing, recognizing it as the best book that he has read on nature-based expressive arts therapy, but shares his personal experience in relation to the environment and nature. He notes the human need to set down roots, and also to go beyond the boundaries of our habitual environments.
IceCube constraints on Violation of Equivalence Principle
Creators: name: Fiorillo, Damiano F. G.
name: Mangano, Gianpiero
name: Morisi, Stefano
name: Pisanti, Ofelia
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Among the information provided by high energy neutrinos, a promising possibility is to analyze the effects of a Violation of Equivalence Principle (VEP) on neutrino oscillations. We analyze the recently released IceCube data on atmospheric neutrino fluxes under the assumption of a VEP and obtain updated constraints on the parameter space with the benchmark choice that neutrinos with different masses couple with different strengths to the gravitational field. In this case we find that the VEP parameters times the local gravitational potential at Earth can be constrained at the level of $10^{-27}$. We show that the constraints from atmospheric neutrinos strongly depend on the assumption that the neutrino eigenstates interacting diagonally with the gravitational field coincide with the mass eigenstates, which is not \textit{a priori} justified: this is particularly clear in the case that the basis of diagonal gravitational interaction coincide with the flavor basis, which cannot be constrained by the observation of atmospheric neutrinos. Finally, we quantitatively study the effect of a VEP on the flavor composition of the astrophysical neutrinos, stressing again the interplay with the basis in which the VEP is diagonal: we find that for some choices of such basis the flavor ratio measured by IceCube can significantly change.
description: 9 pages, 3 figures
Automated analysis of eclipsing binary lightcurves. I. EBAS -- a new Eclipsing Binary Automated Solver with EBOP
Creators: name: Tamuz, Omer
name: Mazeh, Tsevi
name: North, Pierre
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a new algorithm -- Eclipsing Binary Automated Solver (EBAS), to analyse lightcurves of eclipsing binaries. The algorithm is designed to analyse large numbers of lightcurves, and is therefore based on the relatively fast EBOP code. To facilitate the search for the best solution, EBAS uses two parameter transformations. Instead of the radii of the two stellar components, EBAS uses the sum of radii and their ratio, while the inclination is transformed into the impact parameter. To replace human visual assessment, we introduce a new 'alarm' goodness-of-fit statistic that takes into account correlation between neighbouring residuals. We perform extensive tests and simulations that show that our algorithm converges well, finds a good set of parameters and provides reasonable error estimation.
description: 25 pages, 13 figures, accepted to MNRAS
CORONAVIRUS AS A RITE OF PASSAGE: FINDING CURES FOR “COLONIALVIRUS” IN EXPRESSIVE ARTS-BASED RESEARCH
Creators: name: Gracelynn Chung-Yan Lau
Publisher: name: Ecopoiesis: eco-human theory and practice
Year: 2020
Subjects: expressive arts-based research
expressive arts therapy
ecological identity
embodied ecopsychology
imagination

description: Might play and imagination inform us about decolonizing and healing the Earth as ourselves? This article contributes to the discussion on the functions of Expressive Arts-based research (EABR) for practitioners and researchers interested in cultivating ecological identity through embodied and lived experiences. Based on the basic tenets of EABR, the author conducted this intermodal expressive arts inquiry during the early outbreak of the Coronavirus pandemic in Canada, in accordance with the architecture of an expressive arts session: filling in from the habitual world experience, de-centering process and harvesting. On the foundation of this inquiry, the author concludes that the art-oriented de-centering process can 1) facilitate transpersonal ecological interaction with the more-than-human world, which provides relational nourishment for human individuals to grow their ability to identify ecologically; and 2) metabolize imagination and the act of poiesis in between the habitual and alternative world experiences as the embodiment of human participation with the Living Earth’s creative process.
Tigo Zeyen, 2000: Das Palmblatt-Orakel. Lebenserwartung und Wiedergeburt in der altindischen Astrologie
Creators: name: Stubbe-Diarra, Ira
Publisher: name: Südasien
Year: 2024

description: Südasien, Bd. 21 Nr. 4 (2001): Krieg und Frieden in Afghanistan
Time and the Valuation of Environmental Resources
Creators: name: Smith, V. Kerry
name: Smith, V. Kerry
Publisher: name: Unknown
Year: 1997
Subjects: subject: Environmental Economics and Policy
subject: time
subject: revealed preference
subject: complementarity

description: This paper considers the modeling strategies that have been used to incorporate time in revealed and stated preference methods for valuing environmental resources. After reviewing a subset of the economic models for describing time as an input to household production; time in creating habits and persistence in demand for particular services of environmental resources, and time as offering an opportunity for future consumption, the overview suggests that time has been used as a complement in production or consumption to marketed goods in each of these frameworks. The paper suggests two possible alternatives. This structure along with further restrictions to preferences or technology implies that there are other strategies for using revealed preference data to measure the economic value of changes in environmental quality.
Effect of Zn and Ni impurities on the quasiparticle renormalization in Bi-2212
Creators: name: Zabolotnyy, V. B.
name: Borisenko, S. V.
name: Kordyuk, A. A.
name: Fink, J.
name: Geck, J.
name: Koitzsch, A.
name: Knupfer, M.
name: Buechner, B.
name: Berger, H.
name: Erb, A.
name: Lin, C. T.
name: Keimer, B.
name: Follath, R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The Cu substitution by Zn and Ni impurities and its influence on the mass renormalization effects in angle resolved photoelectron spectra (ARPES) of Bi-2212 is addressed. We show that the nonmagnetic Zn atoms have much stronger effect both in nodal and antinodal parts of the Brillouin zone than magnetic Ni. The observed changes are consistent with the behaviour of the spin resonance mode as seen by inelastic neutron scattering in YBCO. This strongly suggests that the "peak-dip-hump" and the "kink" in ARPES on the one side and neutron resonance on the other are closely related features.
description: 4 pages, 3 figures
Models Needed to Assist in the Development of a National Fiber Supply Strategy for the 21st Century: Report of a Workshop
Creators: name: Sedjo, Roger A.
name: Goetzl, Alberto
name: Sedjo, Roger A.
name: Goetzl, Alberto
Publisher: name: Unknown
Year: 1997
Subjects: subject: Resource /Energy Economics and Policy
subject: timber models
subject: market forecasting models
subject: wood fiber supply
subject: projections

description: This discussion paper reports on a Workshop on Wood Fiber Supply Modeling held October 3-4, 1996 in Washington, DC. The purpose of this discussion paper is to provide an overview of some of the modeling work being done related to timber supply modeling and some of the issues related to the more useful application of wood fiber supply and projections models. This paper includes brief presentations of three commonly used long-term timber projections and forecasting models: the Timber Assessment Market Model (TAMM) of the Forest Service; the Cintrafor Global Trade Model (CGTM) of the University of Washington; and the Timber Supply Model (TSM) of Resources for the Future. Also, issues related to the useful of the models are addressed as well as a discussion of some applications of other timber or fiber projection models. The usefulness of the models are addressed from both a technical perspective and also from the perspective of their usefulness to various model users.
The Impacts of Marine Reserves on Limited-Entry Fisheries
Creators: name: Sanchirico, James N.
name: Wilen, James E.
name: Sanchirico, James N.
name: Wilen, James E.
Publisher: name: Unknown
Year: 2000
Subjects: subject: Resource /Energy Economics and Policy
subject: fisheries
subject: limited-entry
subject: marine reserves

description: We utilize a spatial bioeconomic model to investigate the impacts of creating reserves on limited-entry fisheries. We find that reserve creation can produce win-win situations where aggregate biomass and the common license (lease) price increase. These situations arise in biological systems where dispersal processes are prevalent and the fishery prior to reserve creation is operating at effort levels in a neighborhood of open-access levels. We also illustrate that using strictly biological criteria for siting reserves (e.g., setting aside the most biological productive areas) will likely induce the most vociferous objections from the fishing industry. In general, we find that the dispersal rate and the degree the patches are connected play a significant role on the net impacts on the fishing sector.
Ranking the efficiency of gas hydrate anti agglomerants through molecular dynamic simulations
Creators: name: Mohr, Stephan
name: Hoevelmann, Felix
name: Wylde, Jonathan
name: Schelero, Natascha
name: Sarria, Juan
name: Purkayastha, Nirupam
name: Ward, Zachary
name: Acero, Pablo Navarro
name: Michalis, Vasileios K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Using both computational and experimental methods, the capacity of four different surfactant molecules to inhibit the agglomeration of sII hydrate particles was assessed. The computational simulations were carried out using both steered and non-steered Molecular Dynamics (MD), simulating the coalescence process of a hydrate slab and a water droplet, both covered with surfactant molecules. The experimental work was based on rocking cell measurements, determining the minimum effective dose necessary to inhibit agglomeration. Overall, good agreement was obtained between the performance predicted by the simulations and the experimental measurements. Moreover, the simulations allowed to gain additional insights that are not directly accessible via experiments, such as an analysis of the mass density profiles, the diffusion coefficients, or the orientations of the long tails.
PROCESS-ORIENTED APPROACH TO THE STUDY OF CREATIVE ACTS IN HUMAN INTERACTION WITH NATURE
Creators: name: Hampe, Ruth
Publisher: name: Ecopoiesis: eco-human theory and practice
Year: 2020
Subjects: animation
digital documentation
mentalization
nature
natural materials
process-oriented design

description: Creative design processes follow random or theme-based forms of access. In many cases, the beginning of meaning lies in the random placement of a figure, which is then moved and changed by intuitive action. In the context of art therapy, this design sequence can be documented during the process and later explored in the phase of making sense and organizing the experience. Digital documentation and the creation of cartoon-like short films can support integration and delve more deeply into the metamorphoses of the work. Moments of dialogue between clients and therapists play an essential role. Connection to nature can be activated in the creative process for instance in the creation of a face by laying different natural materials in an alternating interplay. Digital photography can be used to record the process of change in the construction of images with natural materials and enable an interactive process in the development and decay of the visual form.
БИОХИМИЧЕСКИЕ ХАРАКТЕРИСТИКИ СЛЮНЫ КРЫС В УСЛОВИЯХ ДИСБАКТЕРИОЗА
Creators: name: Маликов, Ильхом
name: Абдукаримов, Дильшод
Publisher: name: Zenodo
Year: 2024

description: Дисбактериоз представляет собой состояние, характеризующееся нарушением нормального соотношения микроорганизмов в организме, что может приводить к различным физиологическим расстройствам. В данной работе исследуются биохимические изменения состава слюны крыс при дисбактериозе, индуцированном антибиотиками. Сравнительный анализ контрольной и экспериментальной групп выявил значительные изменения в уровнях альбумина, иммуноглобулина IgA, электролитов и органических кислот. Результаты показывают, что дисбактериоз приводит к увеличению уровня альбумина и электролитов, а также снижению иммуноглобулина IgA, что указывает на возможные нарушения иммунного ответа и метаболизма. Полученные данные подчеркивают важность нормальной микрофлоры для здоровья и могут служить основой для дальнейших исследований в области профилактики и лечения дисбактериоза.
STICKIN’ IT TO THE LAMB: ECO-AESTHETICS, THE MYTH OF THE PEACEABLE KINGDOM AND WHY THE LAMB MUST DIE
Creators: name: Chester, Wes
Publisher: name: Ecopoiesis: eco-human theory and practice
Year: 2020
Subjects: eco-aesthetics
aesthetic
ecopsychology
nature
phenomenological

description: The article discusses the pernicious idea about harmonious, idealized human relations with the natural world, which contradicts the real practice of nature management and relations in the animal kingdom. The author calls for a tendency characteristic of Western culture to perceive the natural world through the prism of its symbolic interpretation, as a projection of human reality. He emphasizes the need for a change in perception based on a sensual, physical connection with the natural world and the development of aesthetic perception. This allows us to comprehend the natural world in a specific environment as more complex, diverse, rich and beautiful.
Manifestly gauge invariant QED
Creators: name: Arnone, Stefano
name: Morris, Tim R.
name: Rosten, Oliver J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We uncover a method of calculation that proceeds at every step without fixing the gauge or specifying details of the regularisation scheme. Results are obtained by iterated use of integration by parts and gauge invariance identities. Calculations can be performed almost entirely diagrammatically. The method is formulated within the framework of an exact renormalisation group for QED. We demonstrate the technique with a calculation of the one-loop beta function, achieving a manifestly universal result, and without gauge fixing.
description: 32 pages, Diagrams Fixed; version published in JHEP