cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Interplay between superconductivity and non-Fermi liquid at a quantum-critical point in a metal. III: The $γ$ model and its phase diagram across $γ= 1$
Creators: name: Wu, Yi-Ming
name: Abanov, Artem
name: Chubukov, Andrey V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this paper we continue our analysis of the interplay between the pairing and the non-Fermi liquid behavior in a metal for a set of quantum-critical models with an effective dynamical electron-electron interaction $V(Ω_m) \propto 1/|Ω_m|^γ$ (the $γ$-model). We analyze both the original model and its extension, in which we introduce an extra parameter $N$ to account for non-equal interactions in the particle-hole and particle-particle channel. In two previous papers(arXiv:2004.13220 and arXiv:2006.02968), we considered the case $0 < γ<1$ and argued that (i) at $T=0$, there exists an infinite discrete set of topologically different gap functions, $Δ_n (ω_m)$, all with the same spatial symmetry, and (ii) each $Δ_n$ evolves with temperature and terminates at a particular $T_{p,n}$. In this paper, we analyze how the system behavior changes between $γ<1$ and $γ>1$, both at $T=0$ and a finite $T$. The limit $γ\to 1$ is singular due to infra-red divergence of $\int d ω_m V(Ω_m)$, and the system behavior is highly sensitive to how this limit is taken. We show that for $N =1$, the divergencies in the gap equation cancel out, and $Δ_n (ω_m)$ gradually evolve through $γ=1$ both at $T=0$ and a finite $T$. For $N \neq 1$, divergent terms do not cancel, and a qualitatively new behavior emerges for $γ>1$. Namely, the form of $Δ_n (ω_m)$ changes qualitatively, and the spectrum of condensation energies, $E_{c,n}$ becomes continuous at $T=0$. We introduce different extension of the model, which is free from singularities for $γ>1$.
description: 43 pages, 25 figures, Paper III in the series on the gamma-model. Papers I and II are arXiv:2004.13220 and arXiv:2006.02968 respectively
AGRICULTURAL PRODUCERS' WILLINGNESS TO PAY FOR REAL-TIME MESOSCALE WEATHER INFORMATION
Creators: name: Kenkel, Philip L.
name: Norris, Patricia E.
name: Kenkel, Philip L.
name: Norris, Patricia E.
Publisher: name: Unknown
Year: 1995
Subjects: Agribusiness

description: Mesoscale weather networks can provide improved weather information to agricultural producers. This technology can potentially improve production decisions, reduce irrigation and pesticide inputs, and reduce weather-related losses. Developing a mesoscale network to disseminate real-time mesoscale weather information requires a substantial investment. In addition, there are costs associated with maintenance of the system and distribution of the information available. While public funds may be available to support initial development of the system, there may be less public support initial development of the system, there may be less public support for maintaining the system and subsidizing users' access to the information. This study uses the contingent valuation technique to determine the willingness of Oklahoma farmers and ranchers, as one set of potential users, to pay for real-time mesoscale weather information. The results indicate that agricultural producers are willing to pay only a modest fee for improved weather information. Gross sales, irrigation, and past weather losses are among the factors shown to significantly impact willingness to pay.
Preparing for a better future: Delphi forecasts on competency development to enhance climate-resilient farming in Northeastern India
Creators: name: Amol Kamalakar Bhalerao
name: Rasche, Livia
name: Schneider, Uwe A.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: Medicine
Neuroscience
Pharmacology
Science Policy

description: Many inhabitants of the Northeastern region of India (NER) are poor and have to rely on subsistence farming for a livelihood and are therefore vulnerable to negative impacts of climate change. To enhance the resilience of the farmers and the entire agricultural sector of NER, stakeholders need to acquire additional and/or specialized competencies to deal with the negative impacts of climate change. In this study, we systematically identify and prioritize crucial competencies for change agents, farmers and institutions in NER. We used a modified Delphi methodology with several iterations to lead experts towards a consensus about the most pressing competencies for each stakeholder group. The items were prioritized using a composite scoring approach. The findings reveal that for change agents in NER, an open-minded attitude and expertise in linking farmers to markets are highly rated competencies. For the farmers, eco-friendly farming skills and a problem-solving attitude emerged as key competencies. Biodiversity conservation and integrated farming skills are also highly desirable. Concerning the institutions, the Krishi Vigyan Kendras (farm science centers) have to play a priority role in implementing policies promoting sustainable and climate-resilient agriculture, as they are the institutional link to farming communities. The experts are confident that the overall sustainability of the agricultural sector in NER can be considerably enhanced by developing these key competencies.
Enrico Fermi and the discovery of neutron-induced radioactivity: a project being crowned
Creators: name: De Gregorio, Alberto
Publisher: name: arXiv
Year: 2005
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Popular Physics (physics.pop-ph)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: This paper deals with the Physics Institute of via Panisperna in Rome, getting ready for investigation on neutron physics before Fermi's discovery of neutron-induced radioactivity. The importance of nuclear research had been acknowledged in the Physics Institute in Rome since 1929. The Institute had been directed towards nuclear physics since then, but from the experimental point of view, still in 1933, it was not yet engaged in nuclear experiments on account of the lack of adequate supplies. An adjustment of the equipment and supplies was undertaken, so that strong radioactive sources, Geiger-Mueller counters and Wilson chambers were finally available at the end of 1933, thanks largely to Rasetti's efforts.
description: 14 pages, 3 figures, English translation of a paper submitted to "Il Nuovo Saggiatore"; this paper has been developed from my Ph.D. thesis in Physics, entitled "Dal 'protone neutro' alla radioattivita' indotta: i neutroni a via Panisperna"
Deformations of Adjoint orbits for semisimple Lie algebras and Lagrangian submanifolds
Creators: name: Báez, Jhoan
name: Martin, Luiz A. B. San
Publisher: name: arXiv
Year: 2020
Subjects: subject: Differential Geometry (math.DG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 14M15, 22F30, 53D12

description: We give a coadjoint orbit's diffeomorphic deformation between the classical semisimple case and the semi-direct product given by a Cartan decomposition. The two structures admit the Hermitian symplectic form defined in a semisimple complex Lie algebra. We provide some applications such as the constructions of Lagrangian submanifolds.
description: 23 pages
Grammatisch-syntaktische Studien zur Sprache Ephräms des Syrers
Creators: name: Beck, Edmund
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 69 (1985): Oriens christianus, Band 69
Additional file 6 of Genomic diversity and population structure of the indigenous Greek and Cypriot cattle populations
Creators: name: Papachristou, Dimitris
name: Koutsouli, Panagiota
name: Laliotis, George P.
name: Kunz, Elisabeth
name: Maulik Upadhyay
name: Seichter, Doris
name: Russ, Ingolf
name: Bunevski Gjoko
name: Kostaras, Nikolaos
name: Bizelis, Iosif
name: Medugorac, Ivica
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 6: Figure S3. Tessellated projection. Spatial geographic presentation of the estimated allele sharing distance matrix (DPS) among breeds using multi-allelic SNP-blocks.
Additional file 12 of CGGBP1-regulated cytosine methylation at CTCF-binding motifs resists stochasticity
Creators: name: Manthan Patel
name: Divyesh Patel
name: Subhamoy Datta
name: Singh, Umashankar
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Additional file 12. Repeat content analysis in GM02639 CT and KD MeDIP DNA shows subtle subfamily-specific methylation changes. CT and KD MeDIP repeat identification was performed as described for data in the Additional file 7. repeat identification and the occurrence of the three most populous repeats (Satellites, L1-LINEs and Alu-SINEs) were analyzed. (A) Satellite and L1 repeats were overrepresented and underrepresented respectively in KD. No difference in Alu-SINEs content was observed however. (B) Unlike HEK293T data, the subfamily classification of Alus does not reveal any subfamily-specific methylation differences between CT and KD in GM02639. (C) and (D): L1 repeat subfamily classification showed no consistent differences in methylation between CT and KD.
title: Semi-Automatic Simulation Initialization by Mining Structured and Unstructured Data Formats from Local and Web Data Sources
Creators: name: Sahin, Olcay
Publisher: name: Old Dominion University Libraries
Year: 2012

description: Initialization is one of the most important processes for obtaining successful results from a simulation. However, initialization is a challenge when 1) a simulation requires hundreds or even thousands of input parameters or 2) re-initializing the simulation due to different initial conditions or runtime errors. These challenges lead to the modeler spending more time initializing a simulation and may lead to errors due to poor input data.

This thesis proposes two semi-automatic simulation initialization approaches that provide initialization using data mining from structured and unstructured data formats from local and web data sources. First, the System Initialization with Retrieval (SIR) approach allows for mining structured data from local and web sources. Second, the System Initialization with Search (SIS) approach allows for mining unstructured data from local and web sources. The SIS in pm1icular has a high level of automation that facilitates mining data for initialization from large data sets as found in social media allowing the modeler to tap into highly dynamic and data rich sources.

Both approaches have been successfully applied to initialize two simulations; one that seeks to establish the impact of obesity-related illnesses on the clinical carrying capacity of an area. The other approach seeks to provide decision makers of an area (zip code, city or state) a baseline for course action analysis when affected by flooding due to sea level rise.
TRANSACTION COSTS AND AGRICULTURAL NONPOINT-SOURCE WATER POLLUTION CONTROL POLICIES
Creators: name: Smith, Rodney B.W.
name: Tomasi, Theodore D.
name: Smith, Rodney B.W.
name: Tomasi, Theodore D.
Publisher: name: Unknown
Year: 1995
Subjects: Environmental Economics and Policy

description: Mechanism design theory is used to develop the properties of optimal pollution control incentive schemes in the presence of adverse selection, moral hazard, and transaction costs. The model presented here shows (a) with no deadweight costs (transaction costs) , first-best allocations are always possible; (b) in the presence of transaction costs (caused by raising taxes), only second-best allocations are feasible; and (c) the conditions under which the optimal incentive scheme implementing second-best allocations will be a nonlinear tax, a standard(s), or a combination of both taxes and standard(s).
Area (or entropy) products for Newman-Unti-Tamburino class of Black Holes
Creators: name: Pradhan, Parthapratim
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute area (or entropy) product formula for Newman-Unti-Tamburino (NUT) class of black holes. Specifically, we derive the area product of outer horizon and inner horizon (${ \mathcal{H}}^{\pm }$) for Taub-NUT, Euclidean Taub-NUT black hole, Reissner-Nordström--Taub-NUT black hole, Kerr-Taub-NUT black hole and Kerr-Newman-Taub-NUT black hole under the formalism developed very recently by Wu et al. \cite{wu} [PRD 100, 101501(R) (2019)]. The formalism is that a generic four dimensional Taub-NUT spacetime should be described completely in terms of three or four different types of thermodynamic hairs. They are defined as the Komar mass ($M=m$), the angular momentum ($J_{n}=m\,n$), the gravitomagnetic charge ($N=n$), the dual (magnetic) mass $(\tilde{M}=n)$. After incorporating this formalism, we show that the area (or entropy) product of both the horizons for NUT class of black holes are \emph{mass-independent}. Consequently, the area product of ${\mathcal{H}}^{\pm }$ for these black holes are \emph{universal}. Which was previously known in the literature that the area product of said black holes are \emph{mass-dependent}. Finally, we can say that this universality is solely due to the presence of \emph{new conserved charges $J_{N}=M\,N$} which is closely analogue to the Kerr like angular momentum $J=a\,M$.
description: Published in PLB
RURAL-TO-URBAN WATER TRANSFERS: MEASURING DIRECT FOREGONE BENEFITS OF IRRIGATION WATER UNDER UNCERTAIN WATER SUPPLIES
Creators: name: Taylor, R. Garth
name: Young, Robert A.
name: Taylor, R. Garth
name: Young, Robert A.
Publisher: name: Unknown
Year: 1995
Subjects: Resource /Energy Economics and Policy

description: Irrigation water from a southeastern Colorado county has been sold to distant municipalities. The county's junior water right delivered limited and uncertain water supplies which were used on relatively poor soils. The ability of water markets to allocate water to the highest-valued use was addressed by assessing the direct foregone benefits of the transfer using deterministic and discrete stochastic sequential (DSSP) programming models. Crop mix predicted by the DSSP followed observed regional patterns. The DSSP was thus used to derive regional water demand from which foregone value was estimated. Direct regional foregone agricultural benefits were relatively low-due to uncertain water supplies and unproductive soils-indicating the market selected a low-valued supply for transfer.
Performance of an improved MMSE receiver for CDMA systems in Rayleigh fading
Creators: name: Martin, David Glenn
Publisher: name: University of British Columbia
Year: 2009

description: In a recent paper an adaptive modified minimum mean squared (MMSE) linear filter is used to mitigate interference caused by other users in a CDMA system. The tap weight vector for this adaptive linear filter is determined by an orthogonal decomposition-based least mean square (LMS) algorithm. This tap weight vector consists of a fixed and an adaptive part whose orthogonality is normally maintained by the LMS algorithm. In this thesis, it is proposed that an explicit orthogonalization procedure be used to reduce problems due to quantization errors. These errors would otherwise accumulate and are shown via fixed-point simulations to cause the components of the tap weight vector to become nonorthogonal, resulting in a decreased signal to interference plus noise ratio (SINR) and an increased BER. It is demonstrated that this explicit orthogonalization procedure results in a higher SINR and a lower BER. A new detector is proposed, which adds two minor improvements to the previously published detector, in addition to the explicit orthogonalization procedure. The advantages of these improvements are illustrated by floating-point simulations. The BER performance of the Proposed Detector is compared to those of previously published detectors for the flat Rayleigh fading channel. Finally, to cope with the frequency-selective fading channel, multiple instances of the Proposed Detector can be used in a precombining RAKE receiver structure. The BER performance for this Proposed RAKE receiver is compared against published results for other detectors.
Kink Stability of Isothermal Spherical Self-Similar Flow Revisited
Creators: name: Wang, Anzhong
name: Wu, Yumei
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The problem of kink stability of isothermal spherical self-similar flow in newtonian gravity is revisited. Using distribution theory we first develop a general formula of perturbations, linear or non-linear, which consists of three sets of differential equations, one in each side of the sonic line and the other along it. By solving the equations along the sonic line we find explicitly the spectrum, $k$, of the perturbations, whereby we obtain the stability criterion for the self-similar solutions. When the solutions are smoothly across the sonic line, our results reduce to those of Ori and Piran. To show such obtained perturbations can be matched to the ones in the regions outside the sonic line, we study the linear perturbations in the external region of the sonic line (the ones in the internal region are identically zero), by taking the solutions obtained along the line as the boundary conditions. After properly imposing other boundary conditions at spatial infinity, we are able to show that linear perturbations, satisfying all the boundary conditions, exist and do not impose any additional conditions on $k$. As a result, the complete treatment of perturbations in the whole spacetime does not alter the spectrum obtained by considering the perturbations only along the sonic line.
description: latex file, including two figures
CCD-Delta a and BVR photometry of NGC 7296
Creators: name: Netopil, M.
name: Paunzen, E.
name: Maitzen, H. M.
name: Claret, A.
name: Pavlovski, K.
name: Tamajo, E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The first CCD photometric investigation of the open cluster NGC 7296 up to now was performed within the narrow band Delta a photometric system, which enables us to detect peculiar objects. A deeper investigation of that cluster followed, using the standard BVR-Bessel filter set. The age and E(B-V) was determined independently to log t= 8.0 and 0.15 respectively by using Delta a and broadband photometry. In total five Be/Ae objects and two metal-weak stars showing significant negative Delta a-values as well as one classical chemically peculiar star could be identified within that intermediate age open cluster.
description: 4 pages, 3 figures, accepted by AN
Additional file 11 of CGGBP1-regulated cytosine methylation at CTCF-binding motifs resists stochasticity
Creators: name: Manthan Patel
name: Divyesh Patel
name: Subhamoy Datta
name: Singh, Umashankar
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Additional file 11. Repeat content analysis in HEK293T CT and KD MeDIP DNA shows subfamily-specific methylation changes: Methylation bin frequency plots for HEK293T CT and KD. CT and KD reads for each methylation bin (From 5 to 30) were merged and sequences for merged regions (> 150 bp long) were extracted and subjected to repeat identification. The figures depict the occurrence of the three most populous repeats (Satellites, L1-LINEs and Alu-SINEs). (A) No overall differences in repeat content were observed between CT and KD. (B) A classification of the Alu SINEs into J, S and Y subfamilies revealed subfamility-specific differences in methylation between CT and KD. AluJb and AluSx showed consistently higher methylation in KD across all the methylation bins (top two panels), while AluY showed lower methylation in KD (bottom panel). (C) A subfamily classification of L1 repeats revealed that the L1HS and P family LINE1 such as L1P1, L1P2 and L1PA4 are reduced in KD although these repeat subtypes are more prevalent in highly methylated regions. (D) In contrast, the early originated LINE1 such as L1M1, L1M3, L1M4 and L1M5 showed increased methylation in KD and these repeat subtypes are prevalent in regions with low levels of methylation.
Comment on "Can one predict DNA Transcription Start Sites by Studying Bubbles?"
Creators: name: Choi, C. H.
name: Usheva, A.
name: Kalosakas, G.
name: Rasmussen, K. O.
name: Bishop, A. R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Comment on T.S. van Erp, S. Cuesta-Lopez, J.-G. Hagmann, and M. Peyrard, Phys. Rev. Lett. 95, 218104 (2005) [arXiv: physics/0508094].
The Role of Institutional Investors in Thai REITs
Creators: name: คณิสร์ แสงโชติ
Publisher: name: คณะพาณิชยศาสตร์และการบัญชี จุฬาลงกรณ์มหาวิทยาลัย
Year: 2021
Subjects: Institutional Investors
REITs
Initial Public Offerings
Liquidity
นักลงทุนสถาบัน
ทรัสต์เพื่อการลงทุนในอสังหาริมทรัพย์
การออกเสนอขายหลักทรัพย์ให้ประชาชนทั่วไปเป็นครั้งแรก สภาพคล่อง

description: จุฬาลงกรณ์ธุรกิจปริทัศน์, 43, 167, 38-58
From heavy ions to exotic atoms
Creators: name: Indelicato, Paul
name: Trassinelli, Martino
Publisher: name: arXiv
Year: 2005
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We review a number of experiments and theoretical calculations on heavy ions and exotic atoms, which aim at providing informations on fundamental interactions. Among those are propositions of experiments for parity violation measurements in heavy ions and high-precision mesurements of He-like transition energies in highly charged ions. We also describe recent experiments on pionic atoms, that make use of highly-charged ion transitions to obtain accurate measurements of strong interaction shift and width.
Full-coupled channel approach to S=-2 s-shell hypernuclear systems
Creators: name: Nemura, H.
name: Shinmura, S.
name: Akaishi, Y.
name: Myint, Khin Swe
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We describe full-coupled-channel ab initio calculations among the octet baryons for S=-2 s-shell hypernuclei,_{LambdaLambda}^4H,_{LambdaLambda}^5H and_{LambdaLambda}^6He. The wave function includes Lambda Lambda, Lambda Sigma, N Xi, and Sigma Sigma channels. Minnesota NN, D2^\prime YN and Nijmegen model D simulated YY interactions are used. This is the first attempt to explore the few-body problem of the full-coupled channel scheme for A=4-6, S=-2 multistrangeness hypernuclear systems. Bound state solutions of the Lambda Lambda hypernuclei,_{LambdaLambda}^4H,_{LambdaLambda}^5H and _{LambdaLambda}^6He, are obtained.
description: Proceeding of the VIII International Conference on Hypernuclear and Strange Particle Physics, 4 pages
Asymptotics of Solutions of a Perfect Fluid Coupled with a Cosmological Constant in Four-Dimensional Spacetime with Toroidal Symmetry
Creators: name: Benesh, Gregory A.
name: Wang, Anzhong
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Asymptotics of solutions of a perfect fluid when coupled with a cosmological constant in four-dimensional spacetime with toroidal symmetry are studied. In particular, it is found that the problem of self-similar solutions of the first kind for a fluid with the equation of state, $p = k ρ$, can be reduced to solving a master equation of the form, $$ 2 F(q, k)\frac{q''(ξ)}{q'(ξ)} - G(q,k) q'(ξ) = \frac{4}ξ. $$ For $k = 0$ and $k = -1/3$ the general solutions are obtained and their main local and global properties are studied in detail.
description: latex file, including 11 figures, to appear in Gen. Relativ. Grav
Dyadic models with intermittency dependence for the Hall MHD
Creators: name: Dai, Mimi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q35, 76D03, 76W05

description: We derive dyadic models for the magnetohydrodynamics with Hall effect by including the intermittency dimension as a parameter. For such dyadic models, existence of global weak solutions is established. In addition, local strong solution is obtained; while global strong solution is obtained in the case of high intermittency dimension. Moreover, we show that positive solution with large initial data develops blow-up in finite time provided the intermittency dimension is lower than a threshold.
description: 26 pages
New solutions for the color-flavor locked strangelets
Creators: name: Peng, G. X.
name: Wen, X. J.
name: Chen, Y. D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recent publications rule out the negatively charged beta equilibrium strangelets in ordinary phase, and the color-flavor locked (CFL) strangelets are reported to be also positively charged. This letter presents new solutions to the system equations where CFL strangelets are slightly negatively charged. If the ratio of the square-root bag constant to the gap parameter is smaller than 170 MeV, the CFL strangelets are more stable than iron and the normal unpaired strangelets. For the same parameters, however, the positively charged CFL strangelets are more stable.
description: 5 pages, 4 figures, Revtex4 style
Organizational and Operating Structures of a National Pork Producers Cooperative; Evaluation of Alternatives for Implementation of the Pork America "Umbrella" Model
Creators: name: Matson, James
name: Gehrke, Brad C.
name: Matson, James
name: Gehrke, Brad C.
Publisher: name: Unknown
Year: 2001
Subjects: Agribusiness

description: This paper summarizes the structural components, activities and processes evaluated during the implementation of a national pork producers' cooperative. It reviews and compares various organizational structures considered and identifies the components, activities and processes that would best allow Pork America to fulfil its mission. The paper adds detail to the organizational structure of the "umbrella model" designed by the National Pork Producers Council Cooperative Task Force. More concretely, it outlines, evaluates, and compares alternative activities and processes to implement operations within that structure. It identifies strengths and weakness of each alternative, needs for internal and external competencies, potential business models, management scenarios, and financing options for the alternative approaches considered by Pork America. This approach supported the development of Pork America's master business plan. Governance and operational structures to allow Pork America to function successfully; incorporating local, state and regional groups as members; and be responsive to the restructuring occurring in the pork industry were described. The paper describes the essential components of each structure that was considered, including, but not limited to the following areas: (1) Relationships within operating units, among operating units, between a national headquarters and operating units, and between the board and management. (2) Groupings of employees into departments or operating divisions, within business units, and between business units and the scope of those operating divisions or business units. (3) Systems for communications, coordination, and integration among various divisions and units that make up Pork America, both vertically and horizontally. Methodologically this report is a descriptive case study of the Pork America Cooperative. It outlines the structure of the pork industry in which the cooperative is operating, and develops aspects of the New Generation Cooperative structure that are applicable to this cooperative. Furthermore, the paper identifies alternative activities and processes that Pork America considered or will be considering to implement this structure. Advantages and disadvantages of potential activities and processes are identified and compared. The organizational models discussed are based on those actually considered by the NPPC Task Force and the Pork America Board including: (1) a large-scale three-plant model; (2) a large-scale single-plant format, (3) a service company model, (4) a joint marketing model and (5) a national network model. The paper identifies the alternatives judged to best fulfill Pork America's objectives given the structural components implied in the umbrella model and the changing structure of the pork industry.
Identifying Agricultural Factor Productivity from Micro-data: A Review of Approaches with an Application to EU Countries
Creators: name: Petrick, Martin
name: Kloss, Mathias
name: Petrick, Martin
name: Kloss, Mathias
Publisher: name: Unknown
Year: 2018
Subjects: subject: Productivity Analysis
subject: Research Methods/ Statistical Methods
subject: agricultural factor productivity
subject: production function estimation
subject: EU
subject: Farm Accountancy Data Network

description: We examine the plausibility of four established and innovative identification strategies for agricultural production functions using farm-level panel datasets from five EU countries. Newly suggested proxy and dynamic panel approaches provide attractive conceptual improvements over received Within and duality models. Even so, empirical implementation of such advancements does not always live up to expectations. This is particularly true for the dynamic panel estimator, which mostly failed to identify reasonable elasticities for the (quasi-) fixed factors. Less demanding proxy approaches represent an interesting alternative for agricultural applications. In our EU sample, high production elasticities for materials prevail. Hence, improving the availability of working capital is the most promising way to increase agricultural productivity.
Design and evaluation of a high performance multipriority multicast ATM and IP switch
Creators: name: Chu, Joseph
Publisher: name: University of British Columbia
Year: 2009

description: Asynchronous Transfer Mode (ATM) and Internal Protocol (IP) are two commonly used protocols for the demands of high speed networking technology. The switching technologies employed in ATM cell and IP packet switches have seen extensively researched and studied in recent years. However, most of the switches developed have room for improvement in performance and cost-efficiency. Furthermore, most switching research is based on uniform incoming cell/packet traffic, which is very different from real time traffic. Real time traffic is not only bursty, but also involves multiple classes of prioritized traffic, as well as multicast traffic. In this thesis, a high performance A TM and IP switch architecture is introduced. The switching architecture is based on two existing technologies namely Random Early Detection (RED), and the internal buffer. Simulation results show that with a little modification of these schemes, a switch can perform extremely well under many kinds of real time traffic patterns, including multi-priority and multicast. In addition, the proposed switching architecture shows that cell loss ratio can be arbitrarily reduced using a finite internal buffer size.
title: A hyperelastic model for simulating cells in flow
Creators: name: Müller, Sebastian J.
name: Weigl, Franziska
name: Bezold, Carina
name: Bächer, Christian
name: Albrecht, Krystyna
name: Gekle, Stephan
Publisher: name: University of Bayreuth
Year: 2020
Subjects: subject: hyperelasticity
subject: cell deformation
subject: Mooney–Rivlin
subject: atomic force microscopy
subject: shear flow
subject: Lattice-Boltzmann
subject: 530

description: In the emerging field of 3D bioprinting, cell damage due to large deformations is considered a main cause for cell death and loss of functionality inside the printed construct. Those deformations, in turn, strongly depend on the mechano-elastic response of the cell to the hydrodynamic stresses experienced during printing. In this work, we present a numerical model to simulate the deformation of biological cells in arbitrary three-dimensional flows. We consider cells as an elastic continuum according to the hyperelastic Mooney–Rivlin model. We then employ force calculations on a tetrahedralized volume mesh. To calibrate our model, we perform a series of FluidFM$$^{{\textregistered }}$$compression experiments with REF52 cells demonstrating that all three parameters of the Mooney–Rivlin model are required for a good description of the experimental data at very large deformations up to 80%. In addition, we validate the model by comparing to previous AFM experiments on bovine endothelial cells and artificial hydrogel particles. To investigate cell deformation in flow, we incorporate our model into Lattice Boltzmann simulations via an Immersed-Boundary algorithm. In linear shear flows, our model shows excellent agreement with analytical calculations and previous simulation data.
Alpha decay half-lives of new superheavy elements
Creators: name: Chowdhury, P. Roy
name: Samanta, C.
name: Basu, D. N.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The lifetimes of $α$ decays of the recently produced isotopes of the elements 112, 114, 116 and the element $^{294}118$ and of some decay products have been calculated theoretically within the WKB approximation using microscopic $α$-nucleus interaction potentials. These nuclear potentials have been obtained by folding the densities of the $α$ and the daughter nuclei with the M3Y effective interaction, supplemented by a zero-range pseudo-potential for exchange along with the density dependence. Spherical charge distributions have been used for calculating the Coulomb interaction potentials. These calculations provide reasonable estimates for the observed $α$ decay lifetimes and thus provide reliable predictions for other superheavies.
description: 7 pages
Adiabatic And Entropy Perturations In Inflationary Models Based On Non-linear Sigma Model
Creators: name: Koshelev, N. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The scalar perturbations in inflationary models, based on a two-component diagonal non-linear sigma model, are considered. For inhomogeneities generated at an inflationary stage, the law of motion of the comoving curvature ${\cal R}$ is obtained (without using the slow roll approximations). A formal expressions for the power spectrum and its spectral index are obtained, which are valid and after the slow-roll stage. As an example, an inflationary model with a massive scalar field and quadratic curvature corrections is studied numerically.
description: 6 pages, 2 Postscript figures, accepted for publications by Grav.& Cosmol
Capture of a Red Giant by the Black Hole Sagittarius A* as a Possible Origin for the TeV Gamma Rays from the Galactic Center
Creators: name: Lu, Y.
name: Cheng, K. S.
name: Huang, Y. F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Non-thermal TeV $γ$-ray emission within a multiparsec has been observed from the center region of our Galaxy. We argue that these $γ$-rays are the result of transient activity of the massive black hole Sgr A$^*$ that resides at the Galactic Center. Several thousand years ago, the black hole may have experienced an active phase by capturing a red giant star and forming an accretion disk, temporarily behaving like an active galactic nucleus. A powerful jet, which contains plenty of high speed protons, was launched during the process. These runaway protons interact with the dense ambient medium, producing TeV $γ$-ray emission through the $π^0$-decay process. We show that the total energy deposited in this way is large enough to account for observations. The diffusion length of protons is also consistent with the observed size of the TeV source.
description: 15 pages, 1 figure, Accepted to ApJ
Nucleon polarizabilities in the perturbative chiral quark model
Creators: name: Dong, Y.
name: Faessler, Amand
name: Gutsche, Th.
name: Kuckei, J.
name: Lyubovitskij, V. E.
name: Pumsa-ard, K.
name: Shen, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The nucleon polarizabilities alpha(E) and beta(M) are studied in the context of the perturbative chiral quark model. We demonstrate that meson cloud effects are sufficient to explain the electric polarizability of nucleon. Contributions of excite quark states to the paramagnetic polarizability are dominant and cancel the diamagnetic polarizability arising from the chiral field. The obtained results are compared to data and other theoretical predictions.
description: 25 pages, 18 figures, 2 tables
Crossover between local-moment magnetism and itinerant-electron magnetism in the t-J model
Creators: name: Ohkawa, Fusayoshi J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A Kondo-lattice theory is applied to the crossover between local-moment magnetism for almost half fillings of electrons and itinerant-electron magnetism away from the half filling. In clean systems with no disorder, the bandwidth W^* of quasiparticles is non-zero and of the order of |J| at T=0K even in the limit of the half filling, with J the superexchange interaction constant between nearest neighbors. The so called Gutzwiller's term also contributes to W^* away from the half filling; it is approximately proportional to doping concentrations measured from the half filling. Magnetism is enhanced by disorder because the renormalization of W^* by J is reduced by disorder. The asymmetry of disorder between electron-doped and hole-doped cuprate oxide superconductors must be, at least partly, responsible for that of antiferromagnetic phases between them. The so called Kumagai phase is characterized as an SDW state in a disordered system rather than a spin glass. The Neel temperature T_N about 300K of non-doped cuprate oxides can be explained by the reduction of T_N by critical thermal antiferromagnetic fluctuations in quasi-two dimensions.
description: 27 pages, 10 figures (18 sub-figures). To be published in Journal of The Physical Society of Japan Vol.74 No.12 (2005)
Longitudinal Polarized Parton Densities Updated
Creators: name: Leader, Elliot
name: Sidorov, Aleksander V.
name: Stamenov, Dimiter B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We have re-analyzed the world data on inclusive polarized DIS, in both NLO and LO QCD, including the new HERMES and COMPASS data. The updated NLO polarized densities are given in both the $\rm \bar{MS}$ and JET schemes. The impact of the new data on the results is discussed.
description: 12 pages, 3 figures
Discovery of Strong Lensing by an Elliptical Galaxy at z=0.0345
Creators: name: Smith, Russell J.
name: Blakeslee, John P.
name: Lucey, John R.
name: Tonry, John
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have discovered strong gravitational lensing by the galaxy ESO325-G004, in images obtained with the Advanced Camera for Surveys on the Hubble Space Telescope. The lens galaxy is a boxy group-dominant elliptical at z=0.0345, making this the closest known galaxy-scale lensing system. The lensed object is very blue (B-I = 1.1), and forms two prominent arcs and a less extended third image. The Einstein radius is R_Ein=1.9 kpc (~3 arcsec on the sky, cf. 12 arcsec effective radius of the lens galaxy). Assuming a high redshift for the source, the mass within R_Ein is 1.4x10^11 M_sun, and the I-band mass-to-light ratio is 1.8 (M/L)_sun. The equivalent velocity dispersion is sigma_lens=310 km/s, in excellent agreement with the measured stellar dispersion sigma_v=320 km/s. Modeling the lensing potential with a singular isothermal ellipse (SIE), we find close agreement with the light distribution. The best fit SIE model reproduces the ellipticity of the lens galaxy to ~10%, and its position angle within 1 degree. The model predicts the broad features of the arc geometry as observed; the unlensed magnitude of the source is estimated at I ~ 23.75. We suggest that one in ~200 similarly-massive galaxies within z<0.1 will exhibit such a luminous multiply-imaged source.
description: Five pages, three figures; accepted by Astrophysical Journal Letters
Vacuum destabilization from Kaluza-Klein modes in an inflating brane
Creators: name: Pujolas, Oriol
name: Sasaki, Misao
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the effects from the Kaluza-Klein modes in the brane world scenario when an interaction between bulk and brane fields is included. We focus on the bulk inflaton model, where a bulk field $Ψ$ drives inflation in an almost $AdS_5$ bulk bounded by an inflating brane. We couple $Ψ$ to a brane scalar field $ϕ$ representing matter on the brane. The bulk field $Ψ$ is assumed to have a light mode, whose mass depends on the expectation value of $ϕ$. To estimate the effects from the KK modes, we compute the 1-loop effective potential $V_\eff(ϕ)$. With no tuning of the parameters of the model, the vacuum becomes (meta)stable -- $V_\eff(ϕ)$ develops a true vacuum at a nonzero $ϕ$. In the true vacuum, the light mode of $Ψ$ becomes heavy, degenerates with the KK modes and decays. We comment on some implications for the bulk inflaton model. Also, we clarify some aspects of the renormalization procedure in the thin wall approximation, and show that the fluctuations in the bulk and on the brane are closely related.
description: 15 pages, 2 eps figures. Notation improved, references added
Additional file 4 of Genomic diversity and population structure of the indigenous Greek and Cypriot cattle populations
Creators: name: Papachristou, Dimitris
name: Koutsouli, Panagiota
name: Laliotis, George P.
name: Kunz, Elisabeth
name: Maulik Upadhyay
name: Seichter, Doris
name: Russ, Ingolf
name: Bunevski Gjoko
name: Kostaras, Nikolaos
name: Bizelis, Iosif
name: Medugorac, Ivica
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 4: Figure S2. Tessellated projection. Spatial geographic presentation of the estimated effective population number (Ne5, Ne50, Ne2000).
Fast-timing study of $^{81}$Ga from the $β$ decay of $^{81}$Zn
Creators: name: Paziy, V.
name: Fraile, L. M.
name: Mach, H.
name: Olaizola, B.
name: Simpson, G. S.
name: Aprahamian, A.
name: Bernards, C.
name: Briz, J. A.
name: Bucher, B.
name: Chiara, C. J.
name: Dlouhý, Z.
name: Gheorghe, I.
name: Ghiţǎ, D.
name: Hoff, P.
name: Jolie, J.
name: Köster, U.
name: Kurcewicz, W.
name: Licǎ, R.
name: Mǎrginean, N.
name: Mǎrginean, R.
name: Régis, J. -M.
name: Rudigier, M.
name: Sava, T.
name: Stǎnoiu, M.
name: Stroe, L.
name: Walters, W. B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The $β^{-}$ decay of $^{81}$Zn to the neutron magic $N=50$ nucleus $^{81}$Ga, with only three valence protons with respect to $^{78}$Ni, was investigated. The study was performed at the ISOLDE facility at CERN by means of $γ$ spectroscopy. The $^{81}$Zn half-life was determined to be $T_{1/2}=290(4)$ ms while the $β$-delayed neutron emission probability was measured as $P_n=23(4)\%$. The analysis of the $β$-gated $γ$-ray singles and $γ$-$γ$ coincidences from the decay of $^{81}$Zn provides 47 new levels and 70 new transitions in $^{81}$Ga. The $β^-$$n$ decay of $^{81}$Zn was observed and a new decay scheme into the odd-odd $^{80}$Ga nucleus was established. The half-lives of the first and second excited states of $^{81}$Ga were measured via the fast-timing method using LaBr$_3$(Ce) detectors. The level scheme and transition rates are compared to large-scale shell-model calculations. The low-lying structure of $^{81}$Ga is interpreted in terms of the coupling of the three valence protons outside the doubly-magic $^{78}$Ni core.
description: Submitted to Phys. Rev. C
Online Visual Place Recognition via Saliency Re-identification
Creators: name: Wang, Han
name: Wang, Chen
name: Xie, Lihua
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: As an essential component of visual simultaneous localization and mapping (SLAM), place recognition is crucial for robot navigation and autonomous driving. Existing methods often formulate visual place recognition as feature matching, which is computationally expensive for many robotic applications with limited computing power, e.g., autonomous driving and cleaning robot. Inspired by the fact that human beings always recognize a place by remembering salient regions or landmarks that are more attractive or interesting than others, we formulate visual place recognition as saliency re-identification. In the meanwhile, we propose to perform both saliency detection and re-identification in frequency domain, in which all operations become element-wise. The experiments show that our proposed method achieves competitive accuracy and much higher speed than the state-of-the-art feature-based methods. The proposed method is open-sourced and available at https://github.com/wh200720041/SRLCD.git.
description: Accepted by IEEE/RSJ International Conference on Intelligent Robots and Systems 2020 (IROS)
NAVIGATING MODERNITY: MUHAMMADIYAH AND ITS CONTRIBUTION TO FATWA AND TARJIH IN INDONESIA
Creators: name: WEKKE, Ismail Suardi
Publisher: name: Asian Crime and Society Review
Year: 2024
Subjects: Muhammadiyah
Indonesia
Islamic Law
Fatwa
Tarjih

description: Asian Crime and Society Review, 11, 2, 109–117