cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Towards a string bit formulation of N=4 super Yang-Mills
Creators: name: Alday, Luis F.
name: David, Justin R.
name: Gava, Edi
name: Narain, K. S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that planar cal N=4 Yang-Mills theory at zero 't Hooft coupling can be efficiently described in terms of 8 bosonic and 8 fermionic oscillators. We show that these oscillators can serve as world-sheet variables, the string bits, of a discretized string. There is a one to one correspondence between the on shell gauge invariant words of the free Y-M theory and the states in the oscillators' Hilbert space, obeying a local gauge and cyclicity constraints. The planar two-point functions and the three-point functions of all gauge invariant words are obtained by the simple delta-function overlap of the corresponding discrete string world sheet. At first order in the 't Hooft coupling, i.e. at one-loop in the Y-M theory, the logarithmic corrections of the planar two-point and the three-point functions can be incorporated by nearest neighbour interactions among the discretized string bits. In the SU(2) sub-sector we show that the one-loop corrections to the structure constants can be uniquely determined by the symmetries of the bit picture. For the SU(2) sub-sector we construct a gauged, linear, discrete world-sheet model for the oscillators, with only nearest neighbour couplings, which reproduces the anomalous dimension Hamiltonian up to two loops. This model also obeys BMN scaling to all loops.
description: 64 pages, 6 figures, typos fixed, references added
Entanglement and non-locality are different resources
Creators: name: Brunner, Nicolas
name: Gisin, Nicolas
name: Scarani, Valerio
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Bell's theorem states that, to simulate the correlations created by measurement on pure entangled quantum states, shared randomness is not enough: some "non-local" resources are required. It has been demonstrated recently that all projective measurements on the maximally entangled state of two qubits can be simulated with a single use of a "non-local machine". We prove that a strictly larger amount of this non-local resource is required for the simulation of pure non-maximally entangled states of two qubits $\ket{ψ(α)}= \cosα\ket{00}+\sinα\ket{11}$ with $0
description: 8 pages, 3 figures
MENTORSHIP IN NURSING EDUCATION: ITS ROLE IN ENHANCING CLINICAL COMPETENCE AND PROFESSIONAL GROWTH
Creators: name: GUIRA, GLENN
name: FOULKES-GUIUAN, GIRLIE
name: SOGUILON, DEXTER
name: ALFARO, AIZA VIOLET
name: BABIERRA, MICHELLE
name: BULLALAYAO, CHARLIEMANE
Publisher: name: Zenodo
Year: 2024
Subjects: Mentorship, Nursing Education, Clinical Competence, Professional Growth, Lifelong Learning, Critical Thinking

description: Mentorship plays a vital role in nursing education, significantly influencing the development of clinical competence and professional growth in students. Its impact helps prepare nursing students to meet the challenges of modern healthcare environments effectively. This study aimed to examine the role of mentorship in enhancing these aspects among nursing students in the Philippines. A qualitative research design was employed, with 15 nursing educators, each having over 10 years of mentorship experience, participating. Data were gathered through semi-structured interviews and analyzed using thematic analysis. Four key themes emerged: (1) Guided Skill Development and Clinical Proficiency; (2) Building Confidence and Professional Identity; (3) Support in Critical Thinking and Decision-Making; and (4) Fostering Lifelong Learning and Career Growth. The findings revealed that mentorship creates a supportive learning environment, enabling students to enhance clinical skills, gain professional confidence, and improve critical thinking. Furthermore, mentorship fosters a commitment to lifelong learning, essential for nurses to stay competent in the rapidly changing healthcare landscape. To enhance mentorship in nursing education, it is recommended that structured mentorship programs be integrated into nursing curricula, mentor trainings be provided, and adequate institutional support and resources be ensured. Additionally, ongoing evaluation of mentorship programs and a focus on promoting lifelong learning for both students and mentors should be prioritized to maintain the relevance and effectiveness of these programs in evolving healthcare environments.
Writers in arms and the ’just war’ : literary activism, nation, and heroism in "Left Review"
Creators: name: Haapamaki, Michele Allyson
Publisher: name: University of British Columbia
Year: 2009

description: This thesis explores 1930s Leftist intellectuals in Britain and the fashioning of the Just War through involvement with the Republican cause in Spain. The primary consideration is how Leftists attempted to reconcile the anti-heroic legacy of the Great War with the need to re-create a heroic legend—both to oppose Fascism and to support revolutionary politics. In particular, the thesis focuses on the London-based “Left Review”, the literary journal of the Communist Writers' International published from 1934-38, which had several contributors join the Republican militias and International Brigades. The eulogies and tributes to intellectual warriors who had been a part of the “Left Review” community, and who died on the Front in Spain, illustrate the recreation of an acceptable Leftist warrior hero and the emergence of a heroic myth. The contradictions between ideological pacifism and the necessity of opposing Fascism were reflected in the debates conducted within this political and literary milieu. An analysis of these contradictions, and the heroic portrayal of the armed intellectual in “Left Review”, illuminates how Leftist intellectuals sought to discover and justify a form of military resistance that was consistent with their ideological beliefs. In addition to addressing the particular ideals of British masculinity that were reflected in intellectual discourse on Spain, attention within the thesis is also paid to how the portrayal of the Just War would contribute to Leftist engagement in the Second World War and the notion of the civilian participant in the "People's War."
Acoustic square-root topological insulators
Creators: name: Yan, Mou
name: Huang, Xueqin
name: Luo, Li
name: Lu, Jiuyang
name: Deng, Weiyin
name: Liu, Zhengyou
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Square-root topological states are new topological phases, whose topological property is inherited from the square of the Hamiltonian. We realize the first-order and second-order square-root topological insulators in phononic crystals, by putting additional cavities on connecting tubes in the acoustic Su-Schrieffer-Heeger model and the honeycomb lattice, respectively. Because of the square-root procedure, the bulk gap of the squared Hamiltonian is doubled. In both two bulk gaps, the square-root topological insulators possess multiple localized modes, i.e., the end and corner states, which are evidently confirmed by our calculations and experimental observations. We further propose a second-order square-root topological semimetal by stacking the decorated honeycomb lattice to three dimensions.
description: 3 figures
Evolution from Entanglement to Decoherence of Bipartite Mixed "X" States
Creators: name: Yu, Ting
name: Eberly, J. H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We examine a class of bipartite mixed states which we call X states and report several analytic results related to the occurrence of so-called entanglement sudden death (ESD) under time evolution in the presence of common types of environmental noise. Avoidance of sudden death by application of purely local operations is shown to be feasible in some cases.
description: 11 pages, 2 figures, version 3, some minor changes have been made
Biological control of invasive plant species: stochastic economic analysis
Creators: name: Chalak-Haghighi, Morteza
name: Ruijs, Arjan
name: Van Ierland, Ekko C.
name: Chalak-Haghighi, Morteza
name: Ruijs, Arjan
name: Van Ierland, Ekko C.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Stochastic
subject: Optimisation
subject: Biological control
subject: Californian thistle
subject: Economics.

description: We analysed to what extent the stochastic effects of two biological control agents (i.e. weevils and mycoherbicides) affect the optimal choice of Californian thistle control. A stochastic, dynamic optimisation model was set up to analyse strategies that maximise the expected net present values. We analysed the cost-effective strategies to control the thistle for deterministic and stochastic cases. Results show that the stochasticity of the efficacy of weevils does not affect the optimal strategy. Compared to the deterministic case, however, mycoherbicides will be introduced at a higher level of weed density if we take the stochastic effect of mycoherbicides into account.
A search for the dimuon decay of the Standard Model Higgs boson with the ATLAS detector
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search for the dimuon decay of the Standard Model (SM) Higgs boson is performed using data corresponding to an integrated luminosity of 139 fb$^{-1}$ collected with the ATLAS detector in Run2 $pp$ collisions at $\sqrt{s}=13$ TeV at the Large Hadron Collider. The observed (expected) significance over the background-only hypothesis for a Higgs boson with a mass of 125.09 GeV is $2.0\,σ$ ($1.7\,σ$). The observed upper limit on the cross section times branching ratio for $pp \to H \to μμ$ is 2.2 times the SM prediction at 95% confidence level, while the expected limit on a $H \to μμ$ signal assuming the absence (presence) of a SM signal is $1.1$ ($2.0$). The best-fit value of the signal strength parameter, defined as the ratio of the observed signal yield to the one expected in the SM, is $μ= 1.2 \pm 0.6$.
description: 44 pages in total, author list starting page 28, 2 figures, 3 tables, Published by Phys. Lett. B. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2019-14
Kinematics of water masers in high-mass star forming regions
Creators: name: Goddi, C.
name: Moscadelli, L.
name: Alef, W.
name: Tarchi, A.
name: Brand, J.
name: Pani, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have conducted multi-epoch EVN observations of the 22.2 GHz water masers towards four high-mass star forming regions (Sh 2-255 IR, IRAS 23139+5939, WB89-234, and OMC2). The (three) observing epochs span a time range of 6 months. In each region, the water maser emission likely originates close (within a few hundreds of AU) to a forming high-mass YSO. Several maser features (~10) have been detected for each source and, for those features persistent over the three epochs, proper motions have been derived. The amplitudes of the proper motions are found to be larger than the range of variation of the line-of-sight velocities and in each of the observed sources the proper motion orientation seems to indicate an expansion motion. The gas kinematics traced by the 22.2 GHz water masers is compatible with the shock-excited nature of water maser emission. Three different kinematic models (a spherical expanding shell, a Keplerian rotating disk, and a conical outflow) were fitted to the 3-dimensional velocity field of the detected maser features. The results of these fits, together with the comparison of the VLBI maps with the highest-resolution images of the sources in several thermal tracers, suggest that the water maser features are most likely tracing the inner portion of the molecular outflows detected at much larger-scales.
description: 15 pages, 4 figures; accepted for publication in A&A
Additional file 2 of Transposons and satellite DNA: on the origin of the major satellite DNA family in the Chenopodium genome
Creators: name: Belyayev, Alexander
name: Jiřina Josefiová
name: Jandová, Michaela
name: Mahelka, Václav
name: Krak, Karol
name: Mandák, Bohumil
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: 1. Consensus monomers of the CficCl-61-40 satDNA family and corresponding fragments of tnp2 for species of the C. album aggregate. 2. TPase domains of putative CACTA-like transposons detected in the genomes of the species of the C. album aggregate in comparison with similar domains of other species.
Measurement of Branching Fraction and Dalitz Distribution for B0->D(*)+/- K0 pi-/+ Decays
Creators: name: Aubert, B.
name: Collaboration, BABAR
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present measurements of the branching fractions for the three-body decays B0 -> D(*)-/+ K0 pi^+/-$ and their resonant submodes $B0 -> D(*)-/+ K*+/- using a sample of approximately 88 million BBbar pairs collected by the BABAR detector at the PEP-II asymmetric energy storage ring. We measure: B(B0->D-/+ K0 pi+/-)=(4.9 +/- 0.7(stat) +/- 0.5 (syst)) 10^{-4} B(B0->D*-/+ K0 pi+/-)=(3.0 +/- 0.7(stat) +/- 0.3 (syst)) 10^{-4} B(B0->D-/+ K*+/-)=(4.6 +/- 0.6(stat) +/- 0.5 (syst)) 10^{-4} B(B0->D*-/+ K*+/-)=(3.2 +/- 0.6(stat) +/- 0.3 (syst)) 10^{-4} From these measurements we determine the fractions of resonant events to be : f(B0-> D-/+ K*+/-) = 0.63 +/- 0.08(stat) +/- 0.04(syst) f(B0-> D*-/+ K*+/-) = 0.72 +/- 0.14(stat) +/- 0.05(syst)
description: 7 pages, 3 figures submitted to Phys. Rev. Lett
Competition Policy Reform in Agriculture: A Comparison of the BRICs Countries
Creators: name: Davenport, Scott V.
name: Chadha, R.
name: Gale, R.
name: Davenport, Scott V.
name: Chadha, R.
name: Gale, R.
Publisher: name: Unknown
Year: 2009

description: This paper forms part of a project titled ‘Facilitating Efficient Agricultural Markets in India: An Assessment of Competition and Regulatory Reform Requirements funded by the Australian Centre for International Agricultural Research (ACIAR). The project follows from previous research which found that India’s border reforms need to be complemented by ‘behind-the-border’ domestic reforms if government policy objectives of improved productivity, higher rural employment and incomes and enhanced food security are to be met. The project is being undertaken by Indian and Australian collaborators with expertise in agricultural policy development. Stage 1 of the project is designed to develop a common understanding among those collaborators of contemporary market based policy development principles and the extent to which they have been adopted in other developing countries. The BRICs economies of Brazil, Russia, India and China, as well as South Africa, were chosen for this purpose. A comparative overview of agricultural policy developments in these economies is underway drawing observations about policy reform impacts on agricultural production and the extent to which policy reforms have been consistent with competition policy and microeconomic reform principles applied in developed economies, such as Australia. The extent to which trade practices law has emerged in developing economies as an alternative to direct regulation is also considered. Preliminary findings are reported to facilitate broader discussion and encourage input from interested parties. Stage 2 of the project, commencing later in 2009, will involve the application of competition policy principles to the marketing regulations of a selection of agricultural industries in India. Consideration will be given to clarifying regulatory objectives, assessing their consistency with accepted forms of ‘market failure’ and assessing whether regulatory measures address those policy objectives in a manner least restrictive on competition. As well as facilitating efficient policy reform within India’s agricultural sector, the project aims to enhance the development of market based agricultural policy frameworks and the policy development skills of Indian and Australian policy makers.
Backjumping is Exception Handling
Creators: name: Robbins, Ed
name: King, Andy
name: Howe, Jacob M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: ISO Prolog provides catch and throw to realise the control flow of exception handling. This pearl demonstrates that catch and throw are inconspicuously amenable to the implementation of backjumping. In fact, they have precisely the semantics required: rewinding the search to a specific point, and carrying of a preserved term to that point. The utility of these properties is demonstrated through an implementation of graph colouring with backjumping and a backjumping SAT solver that applies Conflict Driven Clause Learning.
Rural livestock asset portfolio in northern Ethiopia: A microeconomic analysis of choice and accumulation
Creators: name: Tegebu, Fredu Nega
name: Mathijs, Erik
name: Deckers, Jozef A.
name: Tollens, Eric
name: Tegebu, Fredu Nega
name: Mathijs, Erik
name: Deckers, Jozef A.
name: Tollens, Eric
Publisher: name: Unknown
Year: 2009
Subjects: subject: Consumer/Household Economics
subject: Livestock asset portfolio
subject: choice
subject: accumulation
subject: principal animal
subject: northern Ethiopia

description: Livestock of different species fulfill different functions. Depending on their livelihood strategies, households differ in their choice of type of animal to keep and accumulation of the chosen animal overtime. This paper investigates the dynamic behavior of rural households’ livestock holding to identify determinants of choice of type of animal households’ keep and accumulation of the chosen animals using a panel data of 385 rural households in a mixed farming system in northern Ethiopia. Dynamic behavior of choice is analyzed for a principal animal, an animal that constitutes the largest value of livestock assets a household possesses, using a multinomial logit model. A household that keeps oxen as a principal animal is considered the reference household. Results indicate that households differ in choice of type of animal they keep. Agro climatic conditions, sex and age of household head, the presence or absence of male household members and liquidity are the significant factors that determine type of principal animal households keep. Conditional on the principal animal selected, we have analyzed the factors that determine the accumulation of the chosen animals by correcting for selection bias. Size of land cultivated is the most significant factor that explains the size of animals households keep. Other factors include sex of household head, diversification into non-farm self employment and shocks.
Fiscal and trade distorting effects of capital gains tax on land sales - empirical evidence from agricultural land market in Finland
Creators: name: Pietola, Kyosti
name: Myyra, Sami
name: Pouta, Eija
name: Pietola, Kyosti
name: Myyra, Sami
name: Pouta, Eija
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural Finance
subject: Financial Economics
subject: Land Economics/Use
subject: capital gains
subject: taxes
subject: land
subject: trade
subject: fiscal effects

description: Capital gains taxes are important sources of government income in particular in high tax Scandinavian countries. These taxes, nevertheless, likely distort the market and resource allocations through so called “lock-in” effect by discouraging trade transactions that would trigger the tax payments. When it comes to agricultural land, the lock-in effect implies that, along the structural development, the land ownership and active farming gradually deviate from each other and land tenancy increases. Increasing land tenancy and land tenure insecurity have shown to incur a significant social cost, because they discourage and delay irreversible land improvements that would be necessary for maintaining land productivity. Therefore, the knowledge about the trade-off between the level of capital gains taxes, land sales and, thus, the resulting fiscal revenues is valuable in designing optimal tax policies. This study estimates the fiscal effects of reduction in capital gains taxes imposed on land sales and provides grounds for optimizing the tax scheme. The results suggest that certain temporary tax waiver programs could maintain the current tax revenues with less trade distorting effects on the land market. By simulating the land trade quantities conditional on alternative tax rates, the study gives information on how much a particular tax waiver program would trigger land sales. The results signal that tax waiver programs could shift the current structural development pattern of gradually increasing tenancy and land tenure insecurity to a pattern, in which the share of land ownership would be increased.
description: Capital gains taxes
Scalar mesons and low-mass sigma: Does the $σ$ reveal the confinement singularity?
Creators: name: Anisovich, V. V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I present a short review of the current understanding of the scalar meson sector, with special attention to the problem of the low-mass $σ$. The dispersion relation $N/D$-method used for the restoration of the low-energy $ππ$ $(IJ^{PC}=00^{++})$-wave amplitude is discussed. The low-energy $ππ$ amplitude was determined from the data in the energy region 280--500 MeV and it was sewn with the previously found $K$-matrix solution for the region 450--1950 MeV. The $N/D$-amplitude has a pole on the second sheet of the complex-$s$ plane, near the $ππ$ threshold at $\sqrt s \simeq 430-i325$ MeV, that corresponds to the low-mass $σ$-meson. I discuss the hypothesis that this pole may be related to the confinement forces, thus being the eyewitness of confinement.
description: 27 pages, 13 figure
The Impacts of GAFTA on Syrian Trade after Its full Implementation
Creators: name: Babili, Mahmoud
name: Baghasa, Hajar
name: Babili, Mahmoud
name: Baghasa, Hajar
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: International Relations/Trade
subject: GAFTA
subject: Syria
subject: Agricultural trade
subject: problems

description: Studies about GAFTA’s impact on Syria are still few, especially those about its impacts on the agricultural sector. In fact, concerned researchers are in urgent need to know recent developments in GAFTA implementation and to review its updated impacts on Syrian agricultural sector. Therefore, we, NAPC, suggested producing a working paper about GAFTA, including revision for its current situation, its implementation’s impact on Syrian agricultural trade, and economic regression for Syrian- GAFTA members trade comparing with Syrian- third parties trade (especially the EU). In addition to the general introduction, the paper also includes an evaluation to the Syrian position on the scale of GAFTA targets’ achievement. The paper checks commercial developments resulted from GAFTA implementation through comparative study for one years before and one after the agreement (1995 and 2005) and evaluate these developments numerically by various trade indicators. After then, an economic study is performed for analysing GAFTA impacts on GAFTA intra trade, and then lastly comes paper’s conclusions. Moreover, (Abedini and Péridy, 2006) paper was considered as a reference paper; Data from the mentioned paper and from various sources, such as international monetary fund (IMF) database, National Agricultural Policy Centre (NAPC) database and Central Bureau of Statistics in Syria, beside other sources were all benefited. Although the regression model results of analysis in this paper were not significant, the paper concluded some substantial results and recommendations, which are listed and detailed at the end.
The Iloilo urban region : structural change, decentralization and employment in a Philippine secondary city
Creators: name: Oabel, Patrick Vince
Publisher: name: University of British Columbia
Year: 2009

description: In recent years, the Philippine nation state has viewed the spatial decentralization of the economy as a way to raise income levels and promote development in depressed peripheral regions outside the primate city of Metro Manila. This follows a line of argument in the international political economy of urbanization that often expresses processes of capitalist expansion, and indeed processes of globalization, in terms of a core-periphery model where major economic decisions regarding development take place in the core urban areas of so-called "peripheral" nation states. A conceptual weakness of such a perspective, however, is that the application and viability of such policies inevitably becomes entangled with local class structures and the interests of capitalists at peripheral regional scales. In light of the importance of local level actors and factors, a class-based view of economic regionalization is required. This represents an alternative view to traditional coreperiphery thinking as it is a perspective that accounts for the role that local social class structures and elite social groups play in shaping processes of capitalist expansion in regional economies and cities with existing non-capitalist or pre-capitalist elements. This class fundamentalist view of economic regionalization is reflective of the story of economic development within the Province and City of Iloilo, an area located in the Western Visayas region of the central Philippines. This thesis argues that the failure of national spatial decentralization policies is only one of a number of agents responsible for the economic conditions found in the Iloilo urban region. By taking a historical structural examination of the province, it becomes evident that local social class structures, along with different spatial contexts of power relations and labour market segmentation, play important roles in manifestations of economic development, decentralization policy and forms of labour mobility in the urban region. Drawing upon interviews conducted at the household level in both urban and rural settings, I examine how these structural dynamics affect different families and their income generating strategies as they deal with the perpetual stagnation of local labour markets.
Land Tenure and the Adoption of Agricultural Technology in Haiti
Creators: name: Smucker, Glenn R.
name: White, Thomas A.
name: Bannister, Michael
name: Smucker, Glenn R.
name: White, Thomas A.
name: Bannister, Michael
Publisher: name: Unknown
Year: 2000
Subjects: Research and Development/Tech Change/Emerging Technologies

description: There has long been an active debate in Haiti—as in many other developing countries— over whether or not the customary tenure system constrains technology adoption and agricultural development, and whether cadaster and land titling should be national priorities. This paper contributes to this debate by reviewing and interpreting the body of literature and new empirical evidence concerning the relationship between land tenure and the adoption of technology in rural Haiti. The findings suggest that (a) formal title is not necessarily more secure than informal arrangements, (b) informal arrangements based on traditional social capital resources assure affordable and flexible access to land for most people, and (c) perceived stability of access to land—via stability of personal and social relationships—is a more important determinant of technology adoption than mode of access. The paper concludes that there is no definitive relationship between tenure and technology adoption by peasants; peasants are preoccupied more by political and economic insecurity than insecure tenure; and rather than tinkering with formalizing tenure, policy makers should prioritize other more fundamental rural sector reforms. The paper ends by considering some of the implications for theory and suggests several avenues for future research on land policy.
Design and Implementation of a DTMF Based Pick and Place Robotic Arm
Creators: name: Hassan, Muhammad
name: Baqar, Mohtashim
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: Robotics (cs.RO)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In recent times, developments in field of communication and robotics has progressed with leaps and bounds. In addition, the blend of both disciplines has contributed heavily in making human life easier and better. So in this work while making use of both the aforementioned technologies, a procedure for design and implementation of a mobile operated mechanical arm is proposed, that is, the proposed arm will be operated via a cellular device that connects with the receiver mounted on the robotic arm. Moreover, over the duration of a call, if any key is pressed from the cellular device than an indicator indistinct to the key pressed is noticed at the receiver side. This tone represents superimposition of two distinct frequencies and referred to as DTMF (dual tone multi-frequency). Further, the mechanical arm is handled via the DTMF tone. Also, the acquired tone at the receiver is taken into a micro-controller (ATMEGA16) using the DTMF decipher module i.e. MT8870. Further, the decipher module unwinds the DTMF signal into its corresponding two bit representation and then the matched number is transmitted to the micro-controller. The micro-controller is programmed to take an action based on the decoded value. Further, the micro-controller forwards control signals to the motor driver unit to move the arm in forward/backward or multi-directional course. Lastly, the mechanical arm is capable of picking and placing objects while being controlled wirelessly over GSM (Global System for Mobile Communications).
description: Journal Article
A general search for new phenomena in ep scattering at HERA
Creators: name: H1 Collaboration
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A model-independent search for deviations from the Standard Model prediction is performed in e^+ p and e^- p collisions at HERA using H1 data corresponding to an integrated luminosity of 117 pb^-1. For the first time all event topologies involving isolated electrons, photons, muons, neutrinos and jets with high transverse momenta are investigated in a single analysis. Events are assigned to exclusive classes according to their final state. A statistical algorithm is developed to search for deviations from the Standard Model in the distributions of the scalar sum of transverse momenta or invariant mass of final state particles and to quantify their significance. A good agreement with the Standard Model prediction is observed in most of the event classes. The most significant deviation is found for a topology containing an isolated muon, missing transverse momentum and a jet, consistent with a previously reported observation.
description: 23 pages, 6 figures and 4 tables
Teleporting a rotation on remote photons
Creators: name: Xiang, Guo-Yong
name: Li, Jian
name: Guo, Guang-Can
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quamtum remote rotation allows implement local quantum operation on remote systems with shared entanglement. Here we report an experimental demonstration of remote rotation on single photons using linear optical element. And the local dephase is also teleported during the process. The scheme can be generalized to any controlled rotation commutes with $σ_{z}$.
description: 5 pages, 4 figures
Space Climate Manifestation in Earth Prices - from Medieval England Up to Modern Usa
Creators: name: Pustilnik, L. A.
name: Din, G. Yom
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this study we continue to search for possible manifestations of space weather influence on prices of agricultural products and consumables. We note that the connection between solar activity and prices is based on the causal chain that includes several nonlinear transition elements. These non-linear elements are characterized by threshold sensitivity to external parameters and lead to very inhomogeneous local sensitivity of the price to space weather conditions. It is noted that "soft type" models are the most adequate for description of this class of connections. Two main observational effects suitable for testing causal connections of this type of sensitivity are considered: burst-like price reactions on changes in solar activity and price asymmetry for selected phases of the sunspot cycle. The connection, discovered earlier for wheat prices of Medieval England, is examined in this work on the basis of another 700-year data set of consumable prices in England. Using the same technique as in the previous part of our work (Pistilnik and Yom Din 2004) we show that statistical parameters of the interval distributions for price bursts of consumables basket and for sunspot minimum states are similar one to another, like it was reported earlier for wheat price bursts. Possible sources of these consistencies between three different multiyear samples are discussed. For search of possible manifestations of the "space weather - wheat market" connection in modern time, we analyze dynamics of wheat prices in the USA in the twentieth century. We show that the wheat prices revealed a maximum/minimum price asymmetry consistent with the phases of the sunspot cycle. We discuss possible explanations of this observed asymmetry, unexpected under conditions of globalization of the modern wheat market.
description: First International Symposium on Space Climate: Direct and Indirect Observations of Long-Term Solar Activity, 20-23 June 2004, Oulu, Finland
Electron capture of Xe$^{54+}$ in collisions with H${_2}$ molecules in the energy range between 5.5 MeV/u and 30.9 MeV/u
Creators: name: Kröger, F. M.
name: Weber, G.
name: Herdrich, M. O.
name: Glorius, J.
name: Langer, C.
name: Slavkovská, Z.
name: Bott, L.
name: Brandau, C.
name: Brückner, B.
name: Blaum, K.
name: Chen, X.
name: Dababneh, S.
name: Davinson, T.
name: Erbacher, P.
name: Fiebiger, S.
name: Gaßner, T.
name: Göbel, K.
name: Groothuis, M.
name: Gumberidze, A.
name: Gyürky, Gy.
name: Hagmann, S.
name: Hahn, C.
name: Heil, M.
name: Hess, R.
name: Hensch, R.
name: Hillmann, P.
name: Hillenbrand, P. -M.
name: Hinrichs, O.
name: Jurado, B.
name: Kausch, T.
name: Khodaparast, A.
name: Kisselbach, T.
name: Klapper, N.
name: Kozhuharov, C.
name: Kurtulgil, D.
name: Lane, G.
name: Lederer-Woods, C.
name: Lestinsky, M.
name: Litvinov, S.
name: Litvinov, Yu. A.
name: Löher, B.
name: Nolden, F.
name: Petridis, N.
name: Popp, U.
name: Reed, M.
name: Reifarth, R.
name: Sanjari, M. S.
name: Simon, H.
name: Spillmann, U.
name: Steck, M.
name: Stumm, J.
name: Szücs, T.
name: Nguyen, T. T.
name: Zadeh, A. Taremi
name: Thomas, B.
name: Torilov, S. Yu.
name: Törnqvist, H.
name: Trageser, C.
name: Trotsenko, S.
name: Volknandt, M.
name: Weigand, M.
name: Wolf, C.
name: Woods, P. J.
name: Shevelko, V. P.
name: Tolstikhina, I. Yu.
name: Stöhlker, Th.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The electron capture process was studied for Xe$^{54+}$ colliding with H$_2$ molecules at the internal gas target of the ESR storage ring at GSI, Darmstadt. Cross section values for electron capture into excited projectile states were deduced from the observed emission cross section of Lyman radiation, being emitted by the hydrogen-like ions subsequent to the capture of a target electron. The ion beam energy range was varied between 5.5 MeV/u and 30.9 MeV/u by applying the deceleration mode of the ESR. Thus, electron capture data was recorded at the intermediate and in particular the low collision energy regime, well below the beam energy necessary to produce bare xenon ions. The obtained data is found to be in reasonable qualitative agreement with theoretical approaches, while a commonly applied empirical formula significantly overestimates the experimental findings.
title: Aufbau, Eigenschaften und Anwendungen einer Penning-Ionenquelle für die Massenspektrometrie
Creators: name: Kohler, Martin
Publisher: name: Universität Bern
Year: 2025
Subjects: subject: 540 Chemistry

description: Die Massenspektrometrie wird in vielen Bereichen von Wissenschaft und Technik erfolgreich zur Lösung von analytischen Problemen und zur Gewinnung neuer Erkenntnisse eingesetzt. Die vorliegende Arbeit befasst sich mit einem der grundlegenden Aspekte der Massenspektrometrie, mit der Erzeugung von Ionen.
Erstmals wurde eine auf dem Prinzip der Penning-Zelle basierende Ionenquelle (Penning-Ionenquelle) für die Massenspektrometrie organischer Verbindungen gebaut und mit einem Quadrupol-Massenspektrometer gekoppelt. Die Eigenschaften der Penning-Ionenquelle (Energieverteilung, Empfindlichkeit, Art der Fragmentierung) wurden eingehend untersucht. Wichtigstes Ergebnis ist die Beobachtung, dass organische Verbindungen in der Penning-Ionenquelle bei sehr tiefem Druck direkt im Analysatorraum des Massenspektrometers in Fragmente aus einzelnen oder einigen wenigen Atomen zerlegt werden können ("Atomisierung"). Je nach den gewählten Bedingungen lassen sich so konventionelle Massenspektren oder Spektren mit einer hohen Zahl von Fragmenten mit tiefer Masse gewinnen. Die bisher bekannten Verfahren zur "Atomisierung" von organischen Molekülen sind wesentlich aufwendiger, da sie bei Atmosphärendruck verlaufen und ein Interface zum Transport der Ionen ins Massenspektrometer bedingen. 
Die Penning-Ionenquelle eignet sich auch für die Erzeugung negativ geladener Ionen. Die Massenspektrometrie negativer Ionen spielt eine wichtige Rolle in der Analytik halogenierter organischer Verbindungen (Pestizide, Dioxine). Mit der Penning-Ionenquelle gemessene Spektren negativer Ionen zeigen intensive Signale der Halogenatome der jeweiligen Verbindung; halogenierte Substanzen lassen sich selektiv und mit hoher Ausbeute ionisieren. Die Penning-Ionenquelle ist vergleichsweise einfach aufgebaut, ausserordentlich robust, wenig störungsanfällig und weist eine mit kommerziell erhältlichen Ionenquellen vergleichbare Empfindlichkeit auf.
Im zweiten Teil dieser Arbeit wurden Wechselwirkungen eines in der Penning-Ionenquelle erzeugten Plasmas (Argon oder Helium) mit injizierten Ionen untersucht. Es konnte gezeigt werden, dass Ionen mit einer Energie von 10 bis 3'000 eV ein Plasma bei einem Druck von 10-5 mbar ohne nachweisbare Fragmentierung durchqueren können. Dasselbe Experiment wurde auf einem Quistor-Quadrupol-Quistor-Massenspektrometer modelliert. Dazu wurden einfach geladene Argon-Ionen im Quistor ("ion trap") gespeichert und auftretende Wechselwirkungen (Fragmentierung) mit injizierten Ionen untersucht.
Detection of Acoustic Plasmons in Hole-Doped Lanthanum and Bismuth Cuprate Superconductors Using Resonant Inelastic X-Ray Scattering
Creators: name: Nag, Abhishek
name: Zhu, M.
name: Bejas, Matias
name: Li, J.
name: Robarts, H. C.
name: Yamase, Hiroyuki
name: Petsch, A. N.
name: Song, D.
name: Eisaki, H.
name: Walters, A. C.
name: Garcia-Fernandez, M.
name: Greco, Andres
name: Hayden, S. M.
name: Zhou, Ke-Jin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: High Tc superconductors show a rich variety of phases associated with their charge degrees of freedom. Valence charges can give rise to charge ordering or acoustic plasmons in these layered cuprate superconductors. While charge ordering has been observed for both hole- and electron-doped cuprates, acoustic plasmons have only been found in electron-doped materials. Here, we use resonant inelastic X-ray scattering (RIXS) to observe the presence of acoustic plasmons in two families of hole-doped cuprate superconductors [La2-xSrxCuO4 (LSCO) and Bi2Sr1.6La0.4CuO6+d (Bi2201)], crucially completing the picture. Interestingly, in contrast to the quasi-static charge ordering which manifests at both Cu and O sites, the observed acoustic plasmons are predominantly associated with the O sites, revealing a unique dichotomy in the behaviour of valence charges in hole-doped cuprates.
description: 11 pages, 7 figures + Supplementary Information
Does the potential energy landscape of a supercooled liquid resemble a collection of traps?
Creators: name: Heuer, A.
name: Doliwa, B.
name: Saksaengwijit, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: It is analyzed whether the potential energy landscape of a glass-forming system can be effectively mapped on a random model which is described in statistical terms. For this purpose we generalize the simple trap model of Bouchaud and coworkers by dividing the total system into M weakly interacting identical subsystems, each being described in terms of a trap model. The distribution of traps in this extended trap model (ETM) is fully determined by the thermodynamics of the glass-former. The dynamics is described by two adjustable parameters, one characterizing the common energy level of the barriers, the other the strength of the interaction. The comparison is performed for the standard binary mixture Lennard-Jones system with 65 particles. The metabasins, identified in our previous work, are chosen as traps. Comparing molecular dynamics simulations of the Lennard-Jones system with Monte Carlo calculations of the ETM allows one to determine the adjustable parameters. Analysis of the first moment of the waiting distribution yields an optimum agreement when choosing M=3 subsystems. Comparison with the second moment of the waiting time distribution, reflecting dynamic heterogeneities, indicates that the sizes of the subsystems may fluctuate.
description: 14 pages, 12 figures
Additional file 1 of Developing standards for the microbiome field
Creators: name: Amos, Gregory C. A.
name: Logan, Alastair
name: Anwar, Saba
name: Fritzsche, Martin
name: Mate, Ryan
name: Bleazard, Thomas
name: Rijpkema, Sjoerd
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 1. Supplementary Methods.
Collective Action in Ant Control
Creators: name: Ravnborg, Helle Munk
name: De La Cruz, Ana Milena
name: Del Pilar Guerrero, Maria
name: Westermann, Olaf
name: Ravnborg, Helle Munk
name: De La Cruz, Ana Milena
name: Del Pilar Guerrero, Maria
name: Westermann, Olaf
Publisher: name: Unknown
Year: 2000
Subjects: Crop Production/Industries

description: Leaf-cutting ants (Atta. cephalotes) represents a serious problem to farmers in many parts of Latin America and accounts of ants eating up a whole cassava plot or destroying one or more fruit trees overnight are not uncommon. Ants do not respect farm boundaries. Therefore, farmers who control anthills on their own fields might still face damage on their crops caused by ants coming from neighboring fields where no control measures are taken. In that sense, crop damage caused by leaf-cutting ants constitutes a transboundary natural resource management problem which, in addition to technical interventions, requires organizational interventions to ensure a coordinated effort among farmers to be solved. This paper reports on a research effort initiated by CIAT and implemented jointly between CIAT and farmers in La Laguna—a small community in the Andean Hillsides of Southwestern Colombia. The objective of the research effort was two-fold: i) to identify low cost technical options for ant control, and ii) to analyze and visualize the transboundary nature of the ant control problem and thus identify organizational options to enable collective or coordinated ant control.
On the Ising model with random boundary condition
Creators: name: van Enter, A. C. D.
name: Netocny, K.
name: Schaap, H. G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 82B20; 82B44; 60F05

description: The infinite-volume limit behavior of the 2d Ising model under possibly strong random boundary conditions is studied. The model exhibits chaotic size-dependence at low temperatures and we prove that the `+' and `-' phases are the only almost sure limit Gibbs measures, assuming that the limit is taken along a sparse enough sequence of squares. In particular, we provide an argument to show that in a sufficiently large volume a typical spin configuration under a typical boundary condition contains no interfaces. In order to exclude mixtures as possible limit points, a detailed multi-scale contour analysis is performed.
description: 55 pages, minor corrections and 7 figures added, to appear in J. Stat. Phys
Nature, Science, and PNAS -- Disciplinary profiles and impact
Creators: name: Milojević, Staša
Publisher: name: arXiv
Year: 2020
Subjects: subject: Digital Libraries (cs.DL)
subject: FOS: Computer and information sciences

description: Nature, Science, and PNAS are the three most prestigious general-science journals, and Nature and Science are among the most influential journals overall, based on the journal Impact Factor (IF). In this paper we perform automatic classification of ~50,000 articles in these journals (published in the period 2005-2015) into 14 broad areas, to explore disciplinary profiles and to determine their field-specific IFs. We find that in all three journals the articles from Bioscience, Astronomy, and Geosciences are over-represented, with other areas being under-represented, some of them severely. Discipline-specific IFs in these journals vary greatly, for example, between 18 and 46 for Nature. We find that the areas that have the highest disciplinary IFs are not the ones that contribute the most articles. We also find that publishing articles in these three journals brings prestige for articles in all areas, but at different levels, the least being for Astronomy. Comparing field-specific IFs of Nature, Science and PNAS to other top journals in six largest areas (Bioscience, Medicine, Geosciences, Physics, Astronomy, and Chemistry) these three journals are always among the top seven journals, with Nature being at the very top for all fields except in Medicine.
description: Published in Scientometrics (https://link.springer.com/article/10.1007/s11192-020-03441-5)
CAPRi Technical Workshop on Watershed Management Institutions: A Summary Paper
Creators: name: Knox, Anna
name: Gupta, Subodh
name: Knox, Anna
name: Gupta, Subodh
Publisher: name: Unknown
Year: 2000
Subjects: Resource /Energy Economics and Policy

description: The System-wide Program for Collective Action and Property Rights (CAPRi) sponsored a workshop on Watershed Management Institutions, March 13-16, 1999 in Managua, Nicaragua. The workshop focused on methodologies for undertaking research on watersheds, particularly those issues and tools that enable a more thorough understanding of the complex interactions between the biophysical factors and socioeconomic institutions of watersheds. Both social and biophysical scientists from CGIAR and other research institutions were brought together to present research and participate in focused discussions on methodologies for addressing collective action and property rights, scale, participation, and impact assessment. The forum also provided an opportunity for participants to visit and learn from a watershed project being implemented by the International Center for Tropical Agriculture (CIAT), and to discuss one another’s ongoing watershed research project experience and explore opportunities for collaboration.