cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Production of gravitational waves during preheating in the Starobinsky inflationary model
Creators: name: Jin, Guoqiang
name: Fu, Chengjie
name: Wu, Puxun
name: Yu, Hongwei
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The production of GWs during preheating in the Starobinsky model with a nonminimally coupled auxiliary scalar field is studied through the lattice simulation in this paper. We find that the GW spectrum $Ω_{\rm gw}$ grows fast with the increase of the absolute value of coupling parameter $ξ$. This is because the resonant bands become broad with the increase of $|ξ|$. When $ξ<0$, $Ω_{\rm gw}$ begins to grow once the inflation ends and grows faster than the case of $ξ>0$. $Ω_{\rm gw}$ reaches the maximum at $ξ=-20$ ($ξ=42$ for the case $ξ>0$) and then decreases with slight oscillation. Furthermore we find that the GWs produced in the era of preheating satisfy the limits from the Planck and next-generation CMB experiments.
description: 15 pages, 5 figures
Flow dependence of high $p_T$ parton energy loss in heavy-ion collisions
Creators: name: Renk, Thorsten
name: Ruppert, Jorg
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The measured transverse momentum spectra and HBT correlations of bulk (i.e. low $p_T$) matter can be well explained by assuming that the soft sector of particles produced in ultrarelativistic heavy-ion collisions is (approximately) thermalized and undergoes collective accelerated expansion in both longitudinal and transverse direction. However, this implies that bulk matter will have a non-vanishing flow component transverse to the trajectory of a high $p_T$ partonic jets. In general, this will increase the energy loss experienced by the jet parton and modify the shape of the jet cone. In this paper, we present a systematic study of the magnitude of the additional energy loss induced by flow under realistic assumptions for the medium evolution. We argue that a perturbative QGP description may be sufficient for the measured $R_{AA}$ if flow during the medium evolution is taken into account properly.
Development of a Fuzzy-based Patrol Robot Using in Building Automation System
Creators: name: Van Nguyen, Thi Thanh
name: Phung, Manh Duong
name: Pham, Dinh Tuan
name: Tran, Quang Vinh
Publisher: name: arXiv
Year: 2020
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: A Building Automation System (BAS) has functions of monitoring and controlling the operation of all building sub-systems such as HVAC (Heating-Ventilation, Air-conditioning Control), electric consumption management, fire alarm control, security and access control, and appliance switching control. In the BAS, almost operations are automatically performed at the control centre, the building security therefore must be strictly protected. In the traditional system, the security is usually ensured by a number of cameras installed at fixed positions and it may results in a limited vision. To overcome this disadvantage, our paper presents a novel security system in which a mobile robot is used as a patrol. The robot is equipped with fuzzy-based algorithms to allow it to avoid the obstacles in an unknown environment as well as other necessary mechanisms demanded for its patrol mission. The experiment results show that the system satisfies the requirements for the objective of monitoring and securing the building.
description: in Vietnamese language
Spatial power spectrum of natural water turbulence with any average temperature, salinity concentration and light wavelength
Creators: name: Yao, Jinren
name: Elamassie, Mohammed
name: Korotkova, Olga
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The power spectrum of water optical turbulence is shown to vary with its average temperature $\left\langle T \right\rangle$ and average salinity concentration $\left\langle S \right\rangle$, as well as with light wavelength $λ$. This study explores such variations for $\left\langle T \right\rangle \in \left[ {0\ ^\circ\rm{C},30\ ^\circ\rm{C}} \right]$, $\left\langle S \right\rangle \in \left[ {0\ \rm{ppt},40\ \rm{ppt}} \right]$ covering most of the possible natural water conditions within the Earth's boundary layer and for visible electromagnetic spectrum, $λ\in \left[400\ nm, 700\ nm \right]$. For illustration of the effects of these parameters on propagating light we apply the developed power spectrum model for estimation of the scintillation index of a plane wave (the Rytov variance) and the threshold between weak and strong turbulence regimes.
description: 12 pages, 7 figures
INSTITUTIONAL PERSPECTIVES OF ENHANCING SMALLHOLDER MARKET ACCESS IN SOUTH AFRICA.
Creators: name: Magingxa, Litha Light
name: Kamara, Abdul B.
name: Magingxa, Litha Light
name: Kamara, Abdul B.
Publisher: name: Unknown
Year: 2003
Subjects: subject: Farm Management
subject: Industrial Organization
subject: Marketing
subject: FOS: Economics and business

description: There is growing evidence that many smallholder farmers can benefit from market-oriented agriculture. However, smallholders often face a number of barriers to accessing the markets. Smallholder market access is much cited as a factor that exacerbates the smallholder situation but little researched. This issue cannot be addressed completely without taking a holistic perspective that also takes into account the global trends in economic transformation that have a direct bearing on the current smallholder market access situation. A growing number of scholars advocate the need for an institutional analysis in trying to understand these issues
วรรณกรรมโลกศาสตร์ของไทยกับบริบททางสังคมแห่งยุคสมัย
Creators: name: นิตยา แก้วคัลณา
Publisher: name: คณะศิลปศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Year: 2004
Subjects: -

description: วรรณวิทัศน์, 4, พฤศจิกายน, 159-173
Die Verpflichtung der Kirche für die Mission und ihr Streben nach Einheit
Creators: name: Niesel, Wilhelm
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 15 Nr. 1 (1966): Ökumenische Rundschau, Band 15, Heft 1
INTERNET USE AND FACTORS AFFECTING ADOPTION OF INTERNET APPLICATIONS BY SUGARCANE FARM BUSINESSES IN THE KWAZULU-NATAL MIDLANDS
Creators: name: Ferrer, Stuart R.D.
name: Schroeder, D.H.
name: Ortmann, Gerald F.
name: Ferrer, Stuart R.D.
name: Schroeder, D.H.
name: Ortmann, Gerald F.
Publisher: name: Unknown
Year: 2003
Subjects: Research and Development/Tech Change/Emerging Technologies

description: Regression analysis is used to delineate significant determinants associated with the use of Internet applications by commercial sugarcane farm businesses in the KwaZulu-Natal Midlands. Eighty-six percent of farm businesses surveyed had Internet connections and 83 percent used Internet applications (including e-mail, on-line banking and gathering information from the World Wide Web) for business purposes. Results indicate that significant determinants of the range of Internet applications by farm businesses include a) the period of time for which the farm business has been connected to the Internet, b) the principal farm decision-maker's education, time available to spend on the Internet and his or her perceptions of the Internet as a source of information, and c) characteristics of other farm computer users. Activities that may promote use of the Internet applications by farm businesses include the development of policies and software to reduce risks of Internet use, and improving the Internet skills of farmers.
Diquarks and antiquarks in exotics: a menage a trois and a menage a quatre
Creators: name: Karliner, Marek
name: Lipkin, Harry J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A menage a trois is very different from an ordinary family. Similarly, exotic hadrons with both qq and qbar q pairs have important color-space correlations that are completely absent in ordinary mesons and baryons. The presence of both types of pairs requires attention to the basic QCD physics that the q qbar interaction is much stronger than the qq interaction. This new physics in multiquark systems produces color structures totally different from those of normal hadrons, for example the ud system is utterly unlike the ud diquark in the uds Lambda baryon. The color-space correlations produce unusual experimental properties in tetraquarks with heavy quark pairs which may be relevant for newly discovered mesons like the X(3872) resonance. Tetraquark masses can be below the two-meson threshold for sufficiently high quark masses. A simple model calculation shows the b q bbar ubar and b q cbar qbar tetraquarks below the B Bbar and B Dbar thresholds. Some of these states have exotic electric charge and their decays might have striking signatures involving monoenergetic photons and/or pions.
description: Journal version (PLB)
MEASURING THE SUPPLY RESPONSE FUNCTION OF TOBACCO IN ZIMBABWE
Creators: name: Leaver, Rosemary
name: Leaver, Rosemary
Publisher: name: Unknown
Year: 2003
Subjects: Demand and Price Analysis
Research Methods/ Statistical Methods

description: This paper presents an estimate of the price elasticity of supply for tobacco output in Zimbabwe using an adapted Nerlovian model. The results indicate a short-run elasticity of +0.34 and a long-run elasticity of +0.81, suggesting that tobacco farmers are highly unresponsive to price changes. These estimates are similar to those obtained for tobacco in supply response studies conducted in other developing African countries.
INEFFICIENCIES OF INSTITUTIONAL ARRANGEMENTS IN INTERNATIONAL WHEAT TRADE: A PRELIMINARY INVESTIGATION OF EASTERN EUROPE AND SOUTH AFRICA
Creators: name: Lemmer, Wessel J.
name: Onegina, Victoria
name: Lemmer, Wessel J.
name: Onegina, Victoria
Publisher: name: Unknown
Year: 2003
Subjects: International Relations/Trade

description: The beginning of the new century marked important changes in the world wheat market. These changes relate to traditional wheat export countries. In future, non-traditional wheat export countries in Eastern Europe, such as the Ukraine, may increasingly put pressure on traditional wheat suppliers in the world market.
A New Radioactive Decay Mode, True Ternary Fission, the Decay of Heavy Nuclei Into Three Comparable Fragments
Creators: name: von Oertzen, W.
name: Nasirov, A. K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The ternary cluster decay of heavy nuclei has been observed in several experiments with binary coincidences between two fragments using detector telescopes (the FOBOS-detectors, JINR, Dubna) placed on the opposite sides from the source of fissioning nuclei. The binary coincidences at a relative angle of 180$^0$ deg. correspond to binary fission or to the decay into three cluster fragments by registration of two nuclei with different masses (e.g.$^{132}$Sn,$^{52-48}$Ca,$^{68-72}$Ni). This marks a new step in the physics of fission-phenomena of heavy nuclei. These experimental results for the collinear cluster tripartition (CCT), refer to the decay into three clusters of comparable masses. In the present work we discuss the various aspects of this ternary fission (FFF) mode. The question of collinearity is analysed on the basis of recent publications. Further insight into the possible decay modes is obtained by the discussion of the path towards larger deformation, towards hyper-deformation and by inspecting details of the potential energy surfaces (PES). In the path towards the extremely deformed states leading to ternary fission, the concept of deformed shells is most important. At the scission configuration the phase space determined by the PES's leads to the final mass distributions. The possibility of formation of fragments of almost equal size ($Z_i$ = 32, 34, 32, for $Z$=98) and the observation of several other fission modes in the same system can be predicted by the PES. The PES's show pronounced minima and valleys, namely for several mass/charge combinations of ternary fragments, which correspond to a variety of collinear ternary fission (multi-modal) decays. The case of the decay of $^{252}$Cf(sf,fff) turns out to be unique due to the presence of deformed shells in the total system and of closed shells in all three nuclei in the decay.
description: 22 pages, 38 figures
IMPACT OF CAPITAL ON THE GROWTH PROCESS OF A SUGARCANE FARM IN MPUMALANGA
Creators: name: Haile, B.O.
name: Grove, Bennie
name: Oosthuizen, L.K.
name: Haile, B.O.
name: Grove, Bennie
name: Oosthuizen, L.K.
Publisher: name: Unknown
Year: 2003
Subjects: Crop Production/Industries
Land Economics/Use
Research Methods/ Statistical Methods

description: The research was conducted for a representative 50 ha farm in the Onderberg region in Mpumalanga province, where farmers use a combination of centre-pivot, drip, and dragline systems of different sizes to grow sugarcane. The main intention was to establish a multi-period linear programming model capable of economically evaluating a farm expansion decision making process for farmers faced with investment decisions in alternative irrigation systems, taking in to account the available initial capital of the farm. A linear programming (LP) model was used to assign a mainline for a total of twelve irrigation system combinations based on the assumption that the farmer wishes to start with a 30 ha centre-pivot investment. Generalized Algebraic Modelling System (GAMS) was used to formulate the farm growth model as mixed integer dynamic linear programming (MIDLP) for a 15 year planning horizon. Based on the results, farmers are initially forced to invest in lower cost irrigation systems when they lack capital to start a farm business due to the time value of money. They only consider lowering operating costs by investing in expensive irrigation systems when they have more own capital or borrowing capacity.
IDENTIFYING PROBLEMS AND POTENTIAL OF THE CONVERSION TO ORGANIC FARMING IN SOUTH AFRICA
Creators: name: Niemeyer, Katharina
name: Lombard, Jan
name: Niemeyer, Katharina
name: Lombard, Jan
Publisher: name: Unknown
Year: 2003
Subjects: Environmental Economics and Policy
Institutional and Behavioral Economics
Land Economics/Use

description: The world-wide trend of a growing organic sector is also detectable in South Africa. From 2000 to 2002 the number of farmers who had converted to organic farming in South Africa increased sixfold, and although organic farming still accounts only for a minute percentage of the total number agricultural producers, the increasing importance of this sector is apparent. Based on survey results, information was gathered about organic farmers in South Africa concerning socio-demographic aspects, farming operations, motivations and problems of the conversion process. These results were analysed in the context of possibilities to support the organic farming movement theoretically and practically. With respect to the findings it is recommended that the conversion to organic farming should be supported, not necessarily via direct financial support to the organic farmers, but by means of different instruments such as the development of an improved infrastructure for marketing, networking and information exchange. Several areas for future research are identified to increase our understanding of organic farming in the South African context.
Communication partner training in traumatic brain injury: a UK survey of Speech and Language Therapists’ clinical practice
Creators: name: Behn, Nicholas
name: Francis, Jill J.
name: Power, Emma
name: Hatch, Ellie
name: Hilari, Katerina
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: To explore the clinical practice of communication partner training by Speech and Language Therapists for people with traumatic brain injury in the UK. Online 97-item survey which addressed the practice of training both familiar and unfamiliar communication partners, and barriers and facilitators to implementation informed by the Theoretical Domains Framework. 169 Speech and Language Therapists from private and public settings in the UK. While 96% reported training familiar communication partners, only 58% reported training unfamiliar communication partners. Therapists reported providing communication partner training consistent with best practice 43% of the time. Evidence-based published programmes were used by 13.8% and 19.9% of participants for training familiar and unfamiliar partners, respectively. Therapists reported using outcomes for familiar and unfamiliar communication partners 83% and 78% of the time. The most frequently reported barrier was lack of behavioral regulation (e.g., planning). Most frequent perceived facilitators were clinicians wanting to deliver communication partner training and that training was part of therapists’ professional role (social professional role and identity). Therapists were motivated to deliver communication partner training but reduced capability affected implementation. Further support to clinicians on outcome measurement with materials to develop workplace systems to monitor implementation is needed.
MULTINOMIAL LOGIT ANALYSIS OF HOUSEHOLD COOKING FUEL CHOICE IN RURAL KENYA: A CASE OF KISUMU DISTRICT
Creators: name: Pundo, Moses O.
name: Fraser, Gavin C.G.
name: Pundo, Moses O.
name: Fraser, Gavin C.G.
Publisher: name: Unknown
Year: 2003
Subjects: Consumer/Household Economics

description: The study uses multinomial logit model to investigate the factors that determine household cooking fuel choice between firewood, charcoal, and kerosene in Kisumu, Kenya. Empirical results indicate that level of education of wife, the level of education of husband, type of food mostly cooked, whether or not the household owns the dwelling unit, and whether or not the dwelling unit is traditional or modern type are important factors that determine household cooking fuel choice. Implications for regional and national fuel policies are discussed.
Dust vortex flow analysis in weakly magnetized plasma
Creators: name: Kumar, Prince
name: Sharma, Devendra
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Analysis of driven dust vortex flow is presented in a weakly magnetized plasma. The 2D hydrodynamic model is applied to the confined dust cloud in a non-uniform magnetic field in order to recover the dust vortex flow driven in a conservative force field setup, in absence of any non-conservative fields or dust charge variation. Although the time independent electric and magnetic fields included in the analysis provide conservative forcing mechanisms, when the a drift based mechanism, recently observed in a dusty plasma experiment by [M. Puttscher and A. Melzer, Physics of Plasmas, 21,123704(2014)] is considered, the dust vortex flow solutions are shown to be recovered. We have examined the case where purely ambipolar electric field, generated by polarization produced by electron E*B drift, drives the dust flow. A sheared E*B drift flow is facilitated by the magnetic field gradient, driving the vortex flow in the absence of ion drag. The analytical stream-function solutions have been analyzed with varying magnetic field strength, its gradient and kinematic viscosity of the dust fluid. The effect of B field gradient is analyzed which contrasts that of E field gradient present in the plasma sheath.
description: 8 pages , 10 figures
คัมภีร์ภาควตปุราณะ
Creators: name: จิราพร โชติเธียระวงศ์
Publisher: name: คณะศิลปศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Year: 2004
Subjects: -

description: วรรณวิทัศน์, 4, พฤศจิกายน, 174-207
TECHNICAL EFFICIENCY OF RESETTLEMENT FARMERS OF ZIMBABWE
Creators: name: Mushunje, Abbyssinia
name: Belete, Abenet
name: Fraser, Gavin C.G.
name: Mushunje, Abbyssinia
name: Belete, Abenet
name: Fraser, Gavin C.G.
Publisher: name: Unknown
Year: 2003
Subjects: Agricultural and Food Policy
Crop Production/Industries
Institutional and Behavioral Economics

description: This paper examines the technical efficiency of the resettlement sector of the agricultural system in Zimbabwe. The land reform programme aims to redistribute land from large-scale commercial farmers to the small-scale peasantry sector so as to reduce rural poverty. Since such an agrarian reform could result in higher output, higher labour absorption, and a more equitable distribution of income, it is important to assess the level of efficiency of the beneficiaries of this programme. The stochastic frontier function model of the Cobb-Douglas type was used to determine the technical efficiency of a group of 44 cotton farmers from Mutanda resettlement scheme of Manicaland province. Technical inefficiency effects are estimated and are assumed to be a function of other observable variables related to the farming operations. The results reveal some technical efficiency levels of the sample farmers that are varied widely, ranging from 22 per cent to 99 percent, with a mean value of about 71%. The technical inefficiency effects are found to be significant at the 25 per cent level. Technical inefficiency of cotton production decreased with increased family size and age of the head of household, but increased with farm size and education level of head of household.
Pair production and optical lasers
Creators: name: Blaschke, D. B.
name: Prozorkevich, A. V.
name: Roberts, C. D.
name: Schmidt, S. M.
name: Smolyansky, S. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Electron-positron pair creation in a standing wave is explored using a parameter-free quantum kinetic equation. Field strengths and frequencies corresponding to modern optical lasers induce a material polarisation of the QED vacuum, which may be characterised as a plasma of e^+ e^- quasiparticle pairs with a density of ~10^{20}cm^{-3}. The plasma vanishes almost completely when the laser field is zero, leaving a very small residual pair density, n_r, which is the true manifestation of vacuum decay. The average pair density per period is proportional to the laser intensity but independent of the frequency, ν. The density of residual pairs also grows with laser intensity but n_r \propto ν^2. With optical lasers at the forefront of the current generation, these dynamical QED vacuum effects may generate 5-10 observable two-photon annihilation events per laser pulse.
description: 4 pages, 3 figures
An Integer Approximation Method for Discrete Sinusoidal Transforms
Creators: name: Cintra, R. J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Multimedia (cs.MM)
subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Approximate methods have been considered as a means to the evaluation of discrete transforms. In this work, we propose and analyze a class of integer transforms for the discrete Fourier, Hartley, and cosine transforms (DFT, DHT, and DCT), based on simple dyadic rational approximation methods. The introduced method is general, applicable to several block-lengths, whereas existing approaches are usually dedicated to specific transform sizes. The suggested approximate transforms enjoy low multiplicative complexity and the orthogonality property is achievable via matrix polar decomposition. We show that the obtained transforms are competitive with archived methods in literature. New 8-point square wave approximate transforms for the DFT, DHT, and DCT are also introduced as particular cases of the introduced methodology.
description: 13 pages, 5 figures, 8 tables
โครงสร้างประโยคในบทร้อยกรอง: บทเห่เรือและบทเห่เรื่องกากีพระนิพนธ์ของเจ้าฟ้าธรรมธิเบศ
Creators: name: สังวาลย์ คงจันทร์
Publisher: name: คณะศิลปศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Year: 2004
Subjects: -

description: วรรณวิทัศน์, 4, พฤศจิกายน, 208-221
Azimuthal asymmetries in unpolarized Drell-Yan events on nuclear targets
Creators: name: Bianconi, A.
name: Radici, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We show that for Drell-Yan events by unpolarized hadronic projectiles and nuclear targets, azimuthal asymmetries can arise from the nuclear distortion of the hadronic projectile wave function, typically a spin-orbit effect occurring on the nuclear surface. The asymmetry depends on quantities that enter also the spin asymmetry in the corresponding Drell-Yan event on polarized free nucleonic targets. Hence, this study can be of help in exploring the spin structure of the nucleon, in particular the transverse spin distribution of partons inside the proton. All arguments can be extended also to antinucleon projectiles and, consequently, apply to possible future measurements involving nuclear targets at the foreseen HESR ring at GSI.
description: Enlarged text with more details and ample discussion of results; added 1 figure. Accepted for publication in J. Phys. G
Lipid-based vehicles for nucleic acid drugs
Creators: name: Wong, Frances M. P.
Publisher: name: University of British Columbia
Year: 2009

description: Lipid-based carriers are anticipated to be a viable option to deliver nucleic acid drugs (NAs) for gene therapy. This thesis describes a method of adding lipids to NAs in a manner that generates a hydrophobic lipid-NA complex and bypasses the aggregation events induced by use of conventional cationic liposomes. It is anticipated that careful control of the lipid components will facilitate generation of a carrier formulation that protects, directs and delivers NAs to a target and in a form capable of mediating a therapeutic response. The factors that govern the cationic lipid/DNA binding reaction were assessed using a hydrophobic lipid/DNA complex generated by Bligh and Dyer extraction. Efficient recovery of DNA (>95%) in an organic phase was achieved when monocationic lipids interacted with anionic phosphate groups to neutralise the DNA charge. Results indicate that the cationic lipid/DNA complex forms at the aqueous/organic interface and binding is dependent on cooperative, multivalent interactions. Based on the hydrophobic intermediate, self-assembling lipid-DNA particles (LDPs) were formed in detergent and were used to assess the role(s) of lipid components that govern the attributes of a novel lipid-based DNA transfer system. While plasmid DNA, formulated within LDPs containing phosphatidylethanolamine (PE)-lipids, was more sensitive to enzymatic cleavage than DNA in LDPs containing phosphatidylcholine (PC)-lipids, only LDPs with PE-lipids could mediate transgene expression. Another key factor effecting delivery of NAs is electrostatic mediated binding to the target cell. In an effort to model this interaction, a microelectrophoresis technique was used to provide information on LDP surface charge and binding to an anionic surface. It was confirmed that LDPs bound anionic latex beads through electrostatic interactions, where binding involved both the NA and associated lipids. While the previous studies assessed transfection activity of a reporter gene, a second goal of these studies was to use lipids with a therapeutically relevant NA. A particulate delivery system was formed through a hydrophobic intermediate containing cationic lipid, PE-lipid, poly(ethylene glycol)-phosphatidylethanolamine (PEG-PE) and an antisense oligonucleotide (ASO), shown to effect eradication of a B-cell lymphoma via downregulation of Bcl-2 protein. Although in vitro data did not demonstrate that lipid-ASO particles (LAPs) could mediate downregulation of Bcl-2 protein, in vivo data indicated that LAPs were more efficacious when compared to free ASOs. While the use of stabilised PEG-conjugated lipids may not be advantageous for delivery in vitro, the results suggest that LAPs can modulate the pharmacokinetic properties of an associated ASO leading to increased bioavailability.
title:  The ‘Anonymous Matrix’. Diritti umani e spazi imperiali nell’era globale
Creators: name: Monateri  ,  Pier Giuseppe
Publisher: name: Roma TrE-Press
Year: 2021

description: Le teorie sui diritti umani sono generalmente costruite utilizzando concetti ‘essenzialmente contesi’, i quali cioè sono spesso oggetto di usi rivali (nel senso che le medesime nozioni sono utilizzate per strategie differenti). Alla luce della concezione secondo cui il diritto si presenta come un agglomerato di elementi poetici e prudenziali, il sistema giuridico assume caratteri attuali e potenziali allo stesso tempo. Per altro verso, ciò comporta che il meccanismo giuridico-politico rende sempre contemporaneamente attuale e potenziale lo stato di eccezione. Anche quale conseguenza di tale ambiguità di fondo, il successo degli human rights che si riscontra oggi a livello globale non comporta, come dovrebbe, il trionfo della rule of law. Al contrario, il ripetersi della emergency finisce col favorire il prevalere del politico come decisione sull’eccezione.
description: Sovranità e diritti al tempo della globalizzazione
Condensing Momentum Modes in 2-d 0A String Theory with Flux
Creators: name: Zayas, Leopoldo A. Pando
name: Vaman, Diana
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use a combination of conformal perturbation theory techniques and matrix model results to study the effects of perturbing by momentum modes two dimensional type 0A strings with non-vanishing Ramond-Ramond (RR) flux. In the limit of large RR flux (equivalently, mu=0) we find an explicit analytic form of the genus zero partition function in terms of the RR flux $q$ and the momentum modes coupling constant alpha. The analyticity of the partition function enables us to go beyond the perturbative regime and, for alpha>> q, obtain the partition function in a background corresponding to the momentum modes condensation. For momenta such that 0
description: 22 pages
MODELLING THE IMPACTS OF MACROECONOMIC AND TRADE POLICIES ON THE SOUTH AFRICAN AGRICULTURAL SECTOR
Creators: name: Letsoalo, Anthony
name: Kirsten, Johann F.
name: Letsoalo, Anthony
name: Kirsten, Johann F.
Publisher: name: Unknown
Year: 2003
Subjects: International Relations/Trade
Research Methods/ Statistical Methods

description: The purpose of this paper is to investigate the importance of macroeconomic and trade policies on the agricultural sector in South Africa. Macroeconomic and trade policies are determined outside the agricultural sector and since the 1990s South Africa has been moving towards deregulation and trade liberalization. Structural econometric model was applied to determine the impacts of changes in macroeconomic and trade policies on the agricultural sector. Two Stage Least Squares (TSLS) was the technique used because of the simultaneous nature of the equations in the model. The results of the study shows that 10 percent reduction in import tariffs will lead to 11.44 percent increase in the degree of openness of the South African economy. Furthermore, the appreciation of the Rand will raise the domestic prices received by farmers.
Correlation Robust Influence Maximization
Creators: name: Chen, Louis
name: Padmanabhan, Divya
name: Lim, Chee Chin
name: Natarajan, Karthik
Publisher: name: arXiv
Year: 2020
Subjects: subject: Social and Information Networks (cs.SI)
subject: Artificial Intelligence (cs.AI)
subject: Data Structures and Algorithms (cs.DS)
subject: Machine Learning (cs.LG)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We propose a distributionally robust model for the influence maximization problem. Unlike the classic independent cascade model \citep{kempe2003maximizing}, this model's diffusion process is adversarially adapted to the choice of seed set. Hence, instead of optimizing under the assumption that all influence relationships in the network are independent, we seek a seed set whose expected influence under the worst correlation, i.e. the "worst-case, expected influence", is maximized. We show that this worst-case influence can be efficiently computed, and though the optimization is NP-hard, a ($1 - 1/e$) approximation guarantee holds. We also analyze the structure to the adversary's choice of diffusion process, and contrast with established models. Beyond the key computational advantages, we also highlight the extent to which the independence assumption may cost optimality, and provide insights from numerical experiments comparing the adversarial and independent cascade model.
STOCHASTIC EFFICIENCY ANALYSIS USING MULTIPLE UTILITY FUNCTIONS
Creators: name: Schumann, Keith D.
name: Richardson, James W.
name: Lien, Gudbrand D.
name: Hardaker, J. Brian
name: Schumann, Keith D.
name: Richardson, James W.
name: Lien, Gudbrand D.
name: Hardaker, J. Brian
Publisher: name: Unknown
Year: 2004
Subjects: Research Methods/ Statistical Methods

description: Evaluating the risk of a particular decision depends on the risk aversion of the decision maker related to the underlying utility function. The objective of this paper is to use stochastic efficiency with respect to a function (SERF) to compare the ranking of risky alternatives using alternative utility functional forms.
title: A Horse Race of Alternative Monetary Policy Regimes Under Bounded Rationality
Creators: name: Wagner, Joel
name: Schlanger, Tudor
name: Zhang, Yang
Publisher: name: Bank of Canada
Year: 2022

description: We introduce bounded rationality, along the lines of Gabaix (2020), in a canonical New Keynesian model calibrated to match Canadian macroeconomic data since Canada’s adoption of inflation targeting. We use the model to provide a quantitative assessment of the macroeconomic impact of flexible inflation targeting and some alternative monetary policy regimes. These alternative monetary policy regimes are average-inflation targeting, price-level targeting and nominal gross domestic product level targeting. We consider these regimes’ performance with and without an effective lower bound constraint. Our results suggest that the performance of history-dependent frameworks is sensitive to departures from rational expectations. The benefits of adopting history-dependent frameworks over flexible inflation targeting gradually diminish with a greater degree of bounded rationality. This finding is in line with laboratory experiments that show flexible inflation targeting remains a robust framework to stabilize macroeconomic fluctuations.
description: Nous introduisons la rationalité limitée, à la façon de Gabaix (2020), dans un modèle néokeynésien canonique calibré pour reproduire les données macroéconomiques du Canada depuis l’adoption de son régime de ciblage de l’inflation. À partir de ce modèle, nous dégageons une évaluation quantitative de l’incidence macroéconomique du ciblage flexible de l’inflation et de quelques autres régimes de politique monétaire, à savoir : le ciblage de l’inflation moyenne, le ciblage du niveau des prix et le ciblage du produit intérieur brut nominal. Nous étudions la performance de ces régimes avec et sans la contrainte d’une valeur plancher. Nos résultats donnent à penser que la performance des cadres qui dépendent du passé est sensible aux écarts avec les anticipations rationnelles. En effet, les avantages de ces cadres par rapport au ciblage flexible de l’inflation diminuent progressivement quand le degré de rationalité limitée augmente. Ce constat va dans le sens des résultats d’expériences en laboratoire montrant que le ciblage flexible de l’inflation demeure un cadre robuste pour stabiliser les fluctuations macroéconomiques.
Electronic and Magnetic Properties of Small Fullerene Carbon Nanobuds: A DFT Study
Creators: name: Sharma, Amrish
name: Kaur, Sandeep
name: Sharma, Hitesh
name: Mudahar, Isha
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The electronic and magnetic properties of carbon nanobuds have been investigated using density functional theory. The carbon nanobuds are formed by attaching smaller fullerenes (C20, C28, C36 and C40) of variable size with (5,5) ACNT and (5,0) ZCNT. Fullerenes interact strongly with CNT surface having binding energies within the range -0.93eV to -4.06eV. The C-C bond lengths near the attachment region increase from the original C-C bond lengths. The relative stabilities of the nanobuds are closely related to C-C bond lengths and bond angles in cycloaddition reaction. Nanobuds formed by bond cycloaddition are energetically most favorable amongst all cycloadditions. The electronic and magnetic properties of nanobuds depend strongly on electronic properties of its building blocks. The attachment of C20 and C40 on CNTs open up the HOMO-LUMO gaps of nanobuds whereas C28 and C36 results in addition of impurity states near the Fermi level. The total magnetic moment of nanobuds vary from 0.28μB to 4.00μB which depend on the nature of bonding between fullerene and CNTs. The results outline the potential of nanobuds as hybrid carbon nanostructures and how their properties can be tuned with the size and type of fullerene attached.
title: Термодинамика, теплопередача и гидравлика
Creators: name: ELS IPR BOOKS
Publisher: name: Ай Пи Ар Медиа
Year: 2021

description: В данном учебнике приведены основные теоретические положения по дисциплине «Термодинамика, теплопередача и гидравлика», а также сведения, необходимые для выполнения расчетных и графических работ по основным разделам курса. Подготовлен в соответствии с Федеральным государственным образовательным стандартом высшего образования. Предназначен для студентов, обучающихся по направлениям подготовки бакалавров и магистров 20.03.01, 20.04.01 «Техносферная безопасность».
title: Термодинамика, теплопередача и гидравлика
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование, Ай Пи Ар Медиа
Year: 2021

description: В учебнике рассмотрены основы термодинамики, теория теплопередачи, принципы работы гидравлических машин и механизмов, приведены сведения, необходимые для выполнения расчетных и графических работ по основным разделам курса. Учебник подготовлен в соответствии с требованиями Федерального государственного образовательного стандарта среднего профессионального образования, предъявляемыми к изучению дисциплины «Термодинамика, теплопередача и гидравлика». Предназначен для студентов, обучающихся по специальности 20.02.04 «Пожарная безопасность».
RECREATION DEMAND USING PHYSICAL MEASURES OF WATER QUALITY
Creators: name: Egan, Kevin J.
name: Herriges, Joseph A.
name: Kling, Catherine L.
name: Downing, John A.
name: Egan, Kevin J.
name: Herriges, Joseph A.
name: Kling, Catherine L.
name: Downing, John A.
Publisher: name: Unknown
Year: 2004
Subjects: Resource /Energy Economics and Policy

description: This paper incorporates a rich set of physical water quality attributes, as well as site and household characteristics, into a model of recreational lake usage in Iowa. Our analysis shows individuals are responsive to physical water quality measures and WTP estimates are reported based on improvements in these measures.
From $n$-exangulated categories to $n$-abelian categories
Creators: name: Liu, Yu
name: Zhou, Panyue
Publisher: name: arXiv
Year: 2020
Subjects: subject: Representation Theory (math.RT)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 18E30, 18E10

description: Herschend-Liu-Nakaoka introduced the notion of $n$-exangulated categories. It is not only a higher dimensional analogue of extriangulated categories defined by Nakaoka-Palu, but also gives a simultaneous generalization of $n$-exact categories in the sense of Jasso and $(n+2)$-angulated in the sense of Geiss-Keller-Oppermann. Let $\mathscr C$ be an $n$-exangulated category with enough projectives and enough injectives, and $\mathscr X$ a cluster tilting subcategory of $\mathscr C$. In this article, we show that the quotient category $\mathscr C/\mathscr X$ is an $n$-abelian category. This extends a result of Zhou-Zhu for $(n+2)$-angulated categories. Moreover, it highlights new phenomena when it is applied to $n$-exact categories.
description: 18 pages. arXiv admin note: text overlap with arXiv:1909.13284 and arXiv:1807.06733
ANALYZING FARM PARTICIPATION DECISIONS IN AGROTOURISM ACTIVITIES IN NORWAY: SOME WELFARE IMPLICATIONS
Creators: name: Loureiro, Maria L.
name: Jervell-Moxnes, Anne
name: Loureiro, Maria L.
name: Jervell-Moxnes, Anne
Publisher: name: Unknown
Year: 2004
Subjects: subject: Farm Management
subject: agro-tourism
subject: diversification
subject: farming
subject: Norway

description: The aim of this paper is to assess the role played by socio-demographic factors, the financial situation of the farm household, as well as the productive orientation and physical location of the farm on the adoption of agro-tourism activities in Norway. Agro-tourism activities in Norway can be classified mainly into two groups: a) renting of fishing and hunting rights, and b) renting of rooms on the farm, huts, cabin, and provision or direct sell of food to travelers. Results indicate that factors such as the size and the location (rural or semi-rural) of the farm play a statistically significant and more important role on the decision of renting fishing and hunting rights than on the development of other agro-tourism activities on the farm. On the contrary, socio-demographic factors such as the presence of a female partner in the household and the age of the main farm operator play a statistically significant role on the adoption of agro-tourism activities on the farm.
Kappa symmetry, generalized calibrations and spinorial geometry
Creators: name: Papadopoulos, G.
name: Sloane, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We extend the spinorial geometry techniques developed for the solution of supergravity Killing spinor equations to the kappa symmetry condition for supersymmetric brane probe configurations in any supergravity background. In particular, we construct the linear systems associated with the kappa symmetry projector of M- and type II branes acting on any Killing spinor. As an example, we show that static supersymmetric M2-brane configurations which admit a Killing spinor representing the SU(5) orbit of $Spin(10,1)$ are generalized almost hermitian calibrations and the embedding map is pseudo-holomorphic. We also present a bound for the Euclidean action of M- and type II branes embedded in a supersymmetric background with non-vanishing fluxes. This leads to an extension of the definition of generalized calibrations which allows for the presence of non-trivial Born-Infeld type of fields in the brane actions.
description: 9 pages, latex, references added and minor changes
СОВРЕМЕННЫЙ ДОСУГ: МЕЖДУ СВОБОДОЙ И ПОТРЕБЛЕНИЕМ
Creators: name: ЧЕРНИКОВ ИВАН АЛЕКСАНДРОВИЧ
Publisher: name: Вестник Московского государственного университета культуры и искусств
Year: 2019
Subjects: общество потребления
свободное время
досуг
социальные функции досуга
свобода выбора досуга
«серьёзный досуг»
социально-культурная деятельность

description: В данной статье рассмотрены особенности досуга современного общества потребления, в котором доминирует потребительская активность людей, что приводит к диспропорциям между самоорганизованными и организованными формами досуга. В структуре свободного времени преобладают формы, в которых не требуется собственное участие человека, его социальная и культурная активность, творчество. Эта проблема свободы выбора форм досуга и роста потребления досуговых услуг в разной степени отрефлексирована в работах отечественных и зарубежных исследователей досуга. В зарубежных исследованиях досуга выявлены конкретные и достаточно специфичные виды досуга, в которых запрос на потребление не является преобладающим, но которые могут быть в целом полезными для личного или общественного благополучия (развивающая деятельность, которая в максимальной степени обращена к способностям актора (участника), формируя новые знания, умения, навыки, то есть «развивающий опыт»; «серьёзный досуг» (аматерное искусство, любительство и другие); досуговые эксперименты в пограничных зонах культуры). Включение человека в такие досуговые практики на основе свободного выбора всегда положительно сказывается на росте его общего благополучия. В целенаправленной работе по организации досуга необходимо учитывать особенности его регуляции в изменяющихся условиях современного общества потребления.
Topological transition from superuid vortex rings to isolated knots and links
Creators: name: Bai, Wen-Kai
name: Yang, Tao
name: Liu, Wu-Ming
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Knots and links are fundamental topological objects play a key role in both classical and quantum fluids. In this research, we propose a novel scheme to generate torus vortex knots and links through the reconnections of vortex rings perturbed by Kelvin waves in trapped Bose-Einstein condensates. We observe a new phenomenon in a confined superfluid system in which the transfer of helicity between knots/links and coils can occur in both directions with different pathways. The pathways of topology transition can be controlled through designing specific initial states. The generation of a knot or link can be achieved by setting the parity of the Kelvin wave number. The stability of knots/links can be improved greatly with tunable parameters, including the ideal relative angle and the minimal distance between the initial vortex rings.
VALUING MULTIPLE-EXERCISE OPTION CONTRACTS: METHODOLOGY AND APPLICATION TO WATER MARKETS
Creators: name: Villinski, Michele T.
name: Villinski, Michele T.
Publisher: name: Unknown
Year: 2004
Subjects: Resource /Energy Economics and Policy

description: Option contracts for water are emerging in some U.S. states as institutional and legal modifications allow water users to devise new mechanisms to increase reliability of water supply in dry years. Option contracts for water, though, are structurally distinct from financial derivatives and often entail a lengthy lifespan and the opportunity for multiple exercise. In this paper I present the framework and results of a finite-horizon, discrete-time, stochastic dynamic programming methodology for valuing multiple-exercise option contracts. I use data from short-term water markets in the Texas Lower Rio Grande to estimate parameters for two different price processes: mean reversion and geometric Brownian motion. Key findings of the analysis include non-zero contract values for both price processes and higher contract values under geometric Brownian motion than under mean reversion.
Connection Between the Neutrino Seesaw Mechanism and Properties of the Majorana Neutrino Mass Matrix
Creators: name: Ma, Ernest
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: If it can be ascertained experimentally that the 3X3 Majorana neutrino mass matrix M_nu has vanishing determinants for one or more of its 2X2 submatrices, it may be interpreted as supporting evidence for the theoretically well-known canonical seesaw mechanism. I show how these two things are connected and offer a realistic M_nu with two zero subdeterminants as an example.
description: title changed, version to appear in PRD(RC)