cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A magyar, német, lengyel és szlovák tejtermékek fázisárainak összehasonlítása
Creators: name: Aliczki, Katalin
name: Mandi-Nagy, Daniel
name: Nyars, Levente
name: Papp, Gergely
name: Aliczki, Katalin
name: Mandi-Nagy, Daniel
name: Nyars, Levente
name: Papp, Gergely
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Livestock Production/Industries
subject: tej
subject: tejtermékek
subject: termelői és fogyasztói árak
subject: milk
subject: dairy products
subject: producer and consumer prices

description: A 2006–2009 közötti időszakban a tej fogyasztói ára Magyarországon volt a legmagasabb. A fogyasztói árak közötti árkülönbségek mögött számos tényező húzódik meg: az áfatartalom, a kereskedelmi láncok árpolitikája, a feldolgozói ár és végül a termelőknek fizetett felvásárlási ár. Az áfa mértéke alapvetően makrogazdasági adottság, egy adott ország gazdaságpolitikájának függvénye. Az EU régi tagállamaiban a kiskereskedelmi láncokkal kialakult kapcsolatrendszer és a piaci kultúra évtizedes fejlődés eredménye. Ezzel szemben a kelet-európai élelmiszerpiac szereplőire valósággal rászakadt az új típusú, tőke intenzív kiskereskedelem, ami a korábban megszokotthoz képest alárendelt helyzetbe hozta az értékesítési láncban a beszállítókat, a termelőket. A tejtermékeket terhelő magas hazai feldolgozói árak mögött elsősorban a kedvezőtlen makrogazdasági, míg másodsorban az ágazati versenyhátrányok húzódnak meg. ----------------------------------------------- In the period between 2006 and 2009, the consumer price of milk was the highest in Hungary. Differences in consumer prices are caused by many factors: VAT rates, price policy of retail chains, the processing companies’ prices, and, finally, the bulk price paid to producers. The rate of VAT is essentially a macro-economic factor, a function of the economic policy of the country concerned. In the old Member States, relationships with the retail chains and market culture have evolved over decades. Players in the Eastern European food market were, however, taken unprepared by the new capital intensive retail operators; as a result, suppliers and producers shifted to a more subordinated position in the value chain than they had been used to. The high processing prices of dairy products seen in Hungary stem primarily from the unfavourable macro-economic factors and secondly from the competitive disadvantages of the industry.
Corona-Warn-App: Tracing the Start of the Official COVID-19 Exposure Notification App for Germany
Creators: name: Reelfs, Jens Helge
name: Hohlfeld, Oliver
name: Poese, Ingmar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computers and Society (cs.CY)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: On June 16, 2020, Germany launched an open-source smartphone contact tracing app ("Corona-Warn-App") to help tracing SARS-CoV-2 (coronavirus) infection chains. It uses a decentralized, privacy-preserving design based on the Exposure Notification APIs in which a centralized server is only used to distribute a list of keys of SARS-CoV-2 infected users that is fetched by the app once per day. Its success, however, depends on its adoption. In this poster, we characterize the early adoption of the app using Netflow traces captured directly at its hosting infrastructure. We show that the app generated traffic from allover Germany---already on the first day. We further observe that local COVID-19 outbreaks do not result in noticeable traffic increases.
description: To appear at ACM SIGCOMM 2020 Posters
Online Social Deception and Its Countermeasures for Trustworthy Cyberspace: A Survey
Creators: name: Guo, Zhen
name: Cho, Jin-Hee
name: Chen, Ing-Ray
name: Sengupta, Srijan
name: Hong, Michin
name: Mitra, Tanushree
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: We are living in an era when online communication over social network services (SNSs) have become an indispensable part of people's everyday lives. As a consequence, online social deception (OSD) in SNSs has emerged as a serious threat in cyberspace, particularly for users vulnerable to such cyberattacks. Cyber attackers have exploited the sophisticated features of SNSs to carry out harmful OSD activities, such as financial fraud, privacy threat, or sexual/labor exploitation. Therefore, it is critical to understand OSD and develop effective countermeasures against OSD for building a trustworthy SNSs. In this paper, we conducted an extensive survey, covering (i) the multidisciplinary concepts of social deception; (ii) types of OSD attacks and their unique characteristics compared to other social network attacks and cybercrimes; (iii) comprehensive defense mechanisms embracing prevention, detection, and response (or mitigation) against OSD attacks along with their pros and cons; (iv) datasets/metrics used for validation and verification; and (v) legal and ethical concerns related to OSD research. Based on this survey, we provide insights into the effectiveness of countermeasures and the lessons from existing literature. We conclude this survey paper with an in-depth discussions on the limitations of the state-of-the-art and recommend future research directions in this area.
description: 35 pages, 8 figures, submitted to ACM Computing Surveys
Vannak még illúziók
Creators: name: Buday-Santha, Attila
name: Buday-Santha, Attila
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Land Economics/Use
subject: birtokpolitika
subject: koncentráció
subject: földbérlet
subject: öröklés
subject: kistermelés
subject: családi gazdaság
subject: land estate policy
subject: concentration
subject: land lease
subject: inheritance
subject: small farmers
subject: family farm

description: A Szerkesztőség felkérésére írom le az agrárgazdaság helyzetével, birtokviszonyaival kapcsolatos véleményemet. A kiindulópontot ehhez Kapronczai István nagyon színvonalas és minden részletre kiterjedő tanulmánya adta meg. Azt azonban nem tartom szerencsésnek, hogy a cikkében olyan új fogalmakat (eltartó-képesség, életképesség, versenyképesség) hoz be, illetve állít egymással szembe, amelyek önmagukban is külön elemzést igényelnének, és annak következtetéseiben éppen úgy nem lehetne egyetértésre számítani, mint a kisüzem és nagyüzem körüli vitákban. Ez így nem más, mint a kisüzem és nagyüzem közötti vita más szempontú felélesztése. Lényeg az, hogy a fejlett országokban évente a gazdaságok 2-3%-a szűnik meg, valószínű azért, mert nem eltartóképes, nem versenyképes, egyszóval nem életképes. A bajnak azt tartom, hogy ha leragadunk ezeknél a fogalmaknál, akkor a lényegről tereljük el a figyelmet, arról a lényegről, amely a magyar mezőgazdaságot olyan helyzetbe hozta, amilyenben ma van. Egy ilyen kérdésben mindenre lehet egymással szögesen ellentétes példákat hozni, ha az állapotra koncentrálunk, de ebben az esetben nem az állapot, hanem a folyamat, a tendencia a fontos. ------------------------------------------------ The Editorial Board has invited me to present my opinion on the state of the agro-economy and land ownership. To address the issue, I start from István Kapronczai’s high quality, very detailed paper. I do not think, however, that it is helpful to introduce and contrast in his paper new terms (sustaining capacity, viability, competitiveness) which would warrant a separate analysis themselves, drawing conclusions which cannot be expected to meet general agreement, just like the disputes surrounding the issue of small and large farms. This way it is nothing but a revival of the small farm vs. large farm dispute in a new form. The essence of this is that in developed countries, two to three per cent of the farms stop operating every year, probably due to their poor sustaining capacity and competitiveness – in other words, because they are not viable. The problem here, I think, is that if we focus on these terms, we do not pay attention to the essence of the issue, the essence that has brought about the current situation of the Hungarian agriculture. For a topic like this, one can bring up examples for any opposing point, if we focus on the situation, but in this case the tendency, the process is the important thing rather than the situation.
A földpiaci sajátosságok és tendenciák
Creators: name: Kurucz, Adrienn
name: Kurucz, Adrienn
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Land Economics/Use
subject: földpiac
subject: földár
subject: beruházás
subject: válság
subject: derogáció
subject: land market
subject: land prices
subject: investment
subject: crisis
subject: derogation

description: Az elmúlt években ugyan emelkedtek a hazai földárak, de az uniós csatlakozástól várt jelentős árnövekedés és földpiaci forgalomélénkülés elmaradt, sőt, a bérleti díjakban sem hozott átütő fordulatot. A közelmúltban erősödött a magyarországi földpiac megmozdulását várók tábora, a 2011 májusában lejáró derogáció miatt. A szakemberek optimisták, mert a lejáró derogációval kiszélesedhet a vásárlói kör. A hazai agrárgazdaság egyik legnagyobb gondja a tőkehiány, ami akadályozza a technikai és technológiai fejlesztést, az ágazat versenyképessé és jövedelmezőbbé tételét. A földpiac megnyitása becslések szerint ezer milliárd forintot hozhatna az ágazatba, hatalmas lökést adhatna az innovációnak és ugrásszerűen javíthatna az agrárgazdaságból közvetve vagy közvetlenül élők helyzetén. A fő kérdés véleményem szerint nem az, vehetnek-e külföldiek termőföldet, hanem az, milyen feltételrendszerrel lehet egyrészt megakadályozni a spekulánsok beáramlását, másrészt ösztönözni a magyar gazdálkodók földszerzését? Véleményem szerint nem kell kizárni a külföldieket a vásárlásból, mert úgy alakítható a szabályozás, hogy a magyar gazdák kerüljenek előtérbe, amire számos jó példa található tőlünk nyugatra. ---------------------------------------------------- Although land prices have increased in the recent years, the significant price jump and increased sales activities in the land market, expected to be caused by Hungary’s accession to the EU, did not come to pass. No major turn occurred in rent levels either. Recently, a growing number of people have begun to expect to see stirring in the Hungarian land market due to the expiry of the derogation in 2011 May. Specialists are optimistic, because the end of the derogation could cause the widening of the customer base. One of the greatest problems for Hungarian agro-economy is the lack of capital, which prevents technical and technological improvement or the strengthening of competitiveness and profitability. Opening of the land market is estimated to bring a thousand billion Forint into the sector, could boost innovation and greatly improve the situation of people living off agriculture either directly or indirectly. In my opinion, the key question is not whether foreigners should be allowed to buy agricultural land but the conditions which could effectively prevent the inflow of speculators and could also promote the land acquisition of Hungarian farmers. I do not think that foreigners should be barred from purchasing land; on the other hand, regulations should favour Hungarian farmers. There are several good examples of similar regimes in the West.
Zöldség- és gyümölcs-nagykereskedelem Hollandiában
Creators: name: Jasso, Katalin
name: Jasso, Katalin
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: International Relations/Trade
subject: zöldség
subject: gyümölcs
subject: AGF értékesítés
subject: versenyhelyzet-elemzés
subject: trendek
subject: vegetables
subject: fruit
subject: AGF selling
subject: competition analysis
subject: trends

description: Hollandiában is a piacot a fogyasztók igényei irányítják. A hagyományos árutőzsde átalakult, nemcsak a termelők által behozott termékeket értékesítik, hanem más kereskedelmi tevékenységekkel is foglalkoznak. Ez az átalakulás létszükséglet, mert világviszonylatban a zöldség- és gyümölcsértékesítésben fontos szerepet játszik a túltermelés és a konkurencia. A nagykereskedelmi szektorban arra törekszenek, hogy a fogyasztók igényeit folyamatosan egész éven át kielégítsék, miközben a nagykereskedők költségei jelentősen megemelkedtek az EU-szabályozás miatt, mert a piacon maradáshoz fontos a környezetvédelmi, valamint az élelmiszer- és termékbiztonsággal kapcsolatos szabályok betartása. A termelőknek pedig bizonyítaniuk kell a törvényi előírásoknak való megfelelőséget. A magyar termelők és nagykereskedők számára hasznos a holland értékesítési rendszer ismerete, ha termékeikkel versenyképesek akarnak maradni az EU piacán. ------------------------------------------------ The Dutch fruit and vegetable growing sector is a perfect example for other countries. Old traditions and an extensive experience are combined with high level technologies. Efficiency is the most characteristic trait of the Dutch horticultural sector. Although the total production area and the number of people working in the horticultural sector are decreasing, productivity is still improving. The most successfully developing segment is the growing of fresh fruits and vegetables in glasshouses. In 2007 a total of 4.35 billion kg of fresh fruits and vegetables was produced, amounting to a value of 2.46 billion euro. This is 12% higher than a year before. This result can be attributed to the increasing size of the companies as well as the growing intensity and increasing export of Dutch products. The Dutch export has of course an advantage because of the geographic location. The Dutch growers are producing quality products which conform to the strict EU quality regulations, and are using EU standards. This makes their products very competitive.
Magnetic-field-induced delocalization in hybrid electron-nuclear spin ensembles
Creators: name: Pagliero, Daniela
name: Zangara, Pablo R.
name: Henshaw, Jacob
name: Ajoy, Ashok
name: Acosta, Rodolfo H.
name: Manson, Neil
name: Reimer, Jeffrey A.
name: Pines, Alexander
name: Meriles, Carlos A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We use field-cycling-assisted dynamic nuclear polarization and continuous radio-frequency (RF) driving over a broad spectral range to demonstrate magnetic-field-dependent activation of nuclear spin transport from strongly-hyperfine-coupled 13C sites in diamond. We interpret our observations with the help of a theoretical framework where nuclear spin interactions are mediated by electron spins. In particular, we build on the results from a 4-spin toy model to show how otherwise localized nuclear spins must thermalize as they are brought in contact with a larger ancilla spin network. Further, by probing the system response to a variable driving field amplitude, we witness stark changes in the RF-absorption spectrum, which we interpret as partly due to contributions from heterogeneous multi-spin sets, whose 'zero-quantum' transitions become RF active thanks to the hybrid electron-nuclear nature of the system. These findings could prove relevant in applications to dynamic nuclear polarization, spin-based quantum information processing, and nanoscale sensing.
Intrahousehold Decision-making and Resource Control: The Effects of Rice and Commercialization in West Africa
Creators: name: Webb, Patrick
name: Webb, Patrick
Publisher: name: Unknown
Year: 1989
Subjects: Crop Production/Industries

description: In this working paper, Patrick Webb takes a detailed look into the intrahousehold effects of commercialization and technological change in the West African setting of The Gambia. The research particularly focuses on how women farmers are affected by new production technology. A very important aspect of this study is its detailed analysis of the effects of change in a system that has both communal farming at the extended household level and individual farming. The research particularly shows that distributional effects of commercialization and technological change in Africa can only be addressed appropriately if analysis does not stop at the door of the household, but actually looks into changes in burdens and benefits within the complex household production-consumption system.
Equilibrium current vortices in rare-earth-doped simple metals
Creators: name: Cahaya, Adam B.
name: Leon, Alejandro O.
name: Aliabad, Mojtaba Rahimi
name: Bauer, Gerrit E. W.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Dilute alloys of rare earths have played a vital role in understanding magnetic phenomena. Here, we model the ground state of dilute 4f rare-earth impurities in light metals. When the 4f subshells are open (but not half-filled), the spin-orbit coupling imprints a rotational charge current of conduction electrons around rare-earth atoms. The sign and amplitude of the current oscillate similar to the RKKY spin polarization. We compute the observable effect, namely the Oersted field generated by the current vortices and the Knight shift.
description: Format: Long article
Displacement field estimation from OCT images utilizing speckle information with applications in quantitative elastography
Creators: name: Sherina, Ekaterina
name: Krainz, Lisa
name: Hubmer, Simon
name: Drexler, Wolfgang
name: Scherzer, Otmar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this paper, we consider the problem of estimating the internal displacement field of an object which is being subjected to a deformation, from Optical Coherence Tomography (OCT) images before and after compression. For the estimation of the internal displacement field we propose a novel algorithm, which utilizes particular speckle information to enhance the quality of the motion estimation. We present numerical results based on both simulated and experimental data in order to demonstrate the usefulness of our approach, in particular when applied for quantitative elastography, when the material parameters are estimated in a second step based on the internal displacement field.
description: 31 pages
Datenbereitstellung durch die Staatsbibliothek zu Berlin
Creators: name: Lehmann, Jörg
Publisher: name: Zenodo
Year: 2025

description: Folien zum Vortrag für die Online-Veranstaltung Offenheit reicht nicht aus – Auf dem Weg zu einer lebendigen Datenkultur von KOBV und digiS, der 4. Veranstaltung in der Reihe „Quo vadis offene Wissenschaft in Berlin und Brandenburg“ (Programm unter https://blogs.fu-berlin.de/open-access-berlin/2024/12/16/quo-vadis-4-offene-datenkultur/)
Additional file 1 of Is leishmaniasis adequately notified in Sri Lanka? A survey among doctors from an endemic district, Sri Lanka
Creators: name: Hewawasam, Chandana
name: Weerakoon, Hema S.
name: Vyshnavi Thilakan
name: Tishni Lelwala
name: Kalana Prasanka
name: A. S. Rathnayaka
name: Gamage, Shanika
name: Suneth Agampodi
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. A survey of knowledge, attitudes & practices related to Leishmaniasis among Medical officers in Nuwaragampalatha East MOH area, Anuradhapura. The questionnaire that was developed based on WHO fact sheet and Surveillance Case Definitions for Notifiable Diseases in Sri Lanka booklet is attached as a suplementary file.
Higher-order linking forms for knots
Creators: name: Leidy, Constance
Publisher: name: arXiv
Year: 2004
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M27

description: We construct examples of knots that have isomorphic nth-order Alexander modules, but non-isomorphic nth-order linking forms, showing that the linking forms provide more information than the modules alone. This generalizes work of Trotter, who found examples of knots that have isomorphic classical Alexander modules, but non-isomorphic classical Blanchfield linking forms.
description: 22 pages, 2 figures
Sino-U.S. Price Transmission in Agricultural Commodities: How Important are Exchange Rate Movements?
Creators: name: Mutuc, Maria Erlinda M.
name: Pan, Suwen
name: Hudson, Darren
name: Mutuc, Maria Erlinda M.
name: Pan, Suwen
name: Hudson, Darren
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agricultural and Food Policy
subject: Demand and Price Analysis
subject: rice
subject: soybean
subject: cotton
subject: wheat
subject: China
subject: U.S.
subject: price transmission
subject: exchange rate

description: Commodity price transmissions between China and the U.S. are examined. The results indicate that variations in Chinese cotton and soybean prices are transmitted to U.S. cotton and soybean prices while variations in Chinese wheat and rice prices do not get transmitted to U.S. wheat and rice prices. The effects of volatilities in oil prices and in the exchange rate on the price transmission are also assessed.
How black holes store information in high-order correlations
Creators: name: Anastopoulos, Charis
name: Savvidou, Konstantina
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 explain how Hawking radiation stores significant amount of information in high-order correlations of quantum fields. This information can be retrieved by multi-time measurements on the quantum fields close to the black hole horizon. This result requires no assumptions about quantum gravity, it takes into account the differences between Gibbs's and Boltzmann's accounts of thermodynamics, and it clarifies misconceptions about key aspects of Hawking radiation and about informational notions in QFT.
description: 6 pages, honorable mention at the 2020 Gravity Research Foundation essay competition
The Potential Effects of Climate Change on the Productivity, Costs, and Returns of U.S. Dairy Production
Creators: name: Key, Nigel D.
name: Sneeringer, Stacy E.
name: Key, Nigel D.
name: Sneeringer, Stacy E.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: Livestock Production/Industries
subject: Production Economics
subject: climate change
subject: dairy
subject: temperature humidity index
subject: economics

description: Climate change could affect the costs and returns of livestock production by altering the thermal environment of animals thereby affecting animal health, reproduction, and the efficiency by which livestock convert feed into retained products (especially meat and milk). In the United States, concentrated livestock operations are located in a variety of climatic regions, suggesting that the industry could adapt to future changes in temperature and weather patterns resulting from global warming. However, this adaption could be costly. We use nationally representative data on dairy producers coupled with finely-scaled climate data to empirically examine how producers’ costs, returns, and production systems vary across U.S. regions as a function of the local climate.
Additional file 1 of Efficacy of serum miRNA test as a non-invasive method to diagnose nonalcoholic steatohepatitis: a systematic review and meta-analysis
Creators: name: Shengliang Xin
name: Zhan, Qiao
name: Xiaofan Chen
name: Jinghang Xu
name: Yanyan Yu
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: Hematology
subject: Computational Biology

description: Additional file 1: Figure S1. Quality assessment of the included trials. Figure S2. Diagnostic efficacy of serum miRNA-122 for total NAFLD (case vs. control). Figure S3. Diagnostic efficacy of serum miRNA-99a for total NAFLD (case vs. control). Figure S4. Diagnostic efficacy of serum miRNA-34a for total NAFLD (case vs. control). Figure S5. Diagnostic efficacy of serum miRNA for NASH (NAS ≥ 5 vs.
Understanding galaxy formation with ISO deep surveys
Creators: name: Elbaz, David
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results obtained through the various ISO extragalactic deep surveys. While IRAS revealed the existence of galaxies forming stars at a rate of a few tens (LIRGs) or even hundreds (ULIRGs) solar masses in the local universe, ISO not only discovered that these galaxies were already in place at redshift one, but also that they are not the extreme objects that we once believed them to be. Instead they appear to play a dominant role in shaping present-day galaxies as reflected by their role in the cosmic history of star formation and in producing the cosmic infrared background detected by the COBE satellite in the far infrared to sub-millimeter range.
description: 29 pages; Space Science Reviews ISO Special Issue "ISO science legacy - a compact review of ISO major achievements", Ed.C.Cesarky & A.Salama (Springer)
Learning High-Level Policies for Model Predictive Control
Creators: name: Song, Yunlong
name: Scaramuzza, Davide
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The combination of policy search and deep neural networks holds the promise of automating a variety of decision-making tasks. Model Predictive Control (MPC) provides robust solutions to robot control tasks by making use of a dynamical model of the system and solving an optimization problem online over a short planning horizon. In this work, we leverage probabilistic decision-making approaches and the generalization capability of artificial neural networks to the powerful online optimization by learning a deep high-level policy for the MPC (High-MPC). Conditioning on robot's local observations, the trained neural network policy is capable of adaptively selecting high-level decision variables for the low-level MPC controller, which then generates optimal control commands for the robot. First, we formulate the search of high-level decision variables for MPC as a policy search problem, specifically, a probabilistic inference problem. The problem can be solved in a closed-form solution. Second, we propose a self-supervised learning algorithm for learning a neural network high-level policy, which is useful for online hyperparameter adaptations in highly dynamic environments. We demonstrate the importance of incorporating the online adaption into autonomous robots by using the proposed method to solve a challenging control problem, where the task is to control a simulated quadrotor to fly through a swinging gate. We show that our approach can handle situations that are difficult for standard MPC.
description: Accepted for Publication at the 2020 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)
Spin selection rule for {\it S} level transitions in atomic rubidium under paraxial and nonparaxial two-photon excitation
Creators: name: Rajasree, Krishnapriya Subramonian
name: Gupta, Ratnesh Kumar
name: Gokhroo, Vandna
name: Kien, Fam Le
name: Nieddu, Thomas
name: Ray, Tridib
name: Chormaic, Síle Nic
name: Tkachenko, Georgiy
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report on an experimental test of the spin selection rule for two-photon transitions in atoms. In particular, we demonstrate that the $5S_{1/2}\to 6S_{1/2}$ transition rate in a rubidium gas follows a quadratic dependency on the helicity parameter linked to the polarization of the excitation light. For excitation via a single Gaussian beam or two counterpropagating beams in a hot vapor cell, the transition rate scales as the squared degree of linear polarization. The rate reaches zero when the light is circularly polarized. In contrast, when the excitation is realized via an evanescent field near an optical nanofiber, the two-photon transition cannot be completely extinguished (theoretically, not lower than 13\% of the maximum rate, under our experimental conditions) by only varying the polarization of the fiber-guided light. Our findings lead to a deeper understanding of the physics of multiphoton processes in atoms in strongly nonparaxial light.
Note Illustrative della Carta geologica d'Italia alla scala 1:50.000, F. 303 Macerata
Creators: name: Cello, G.
Publisher: name: INFN Open Access Repository
Year: 2009

description: Note illustrative redatte per il Foglio geologico n. 303 Macerata della Carta Geologica d'Italia alla scala 1:50.000. 90 pp.
Additional file 1 of Inhibiting autophagy potentiates the antitumor efficacy of Euphorbia royleana for canine mammary gland tumors
Creators: name: Yu-Ya Huang
name: Chia-Hung Chen
name: Chia-Hui Hsu
name: Tsun-Yung Kuo
name: Cheng-Chi Liu
name: Liao, Albert Tai-Ching
name: Lin, Chen-Si
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer

description: Additional file 1. The original blots for the figures.
Moderate bandgap and high carrier mobility simultaneously realized in bilayer silicene by oxidation
Creators: name: Qian, Yan
name: Kan, Erjun
name: Deng, Kaiming
name: Wu, Haiping
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Semiconductors simultaneously possessing high carrier mobility, moderate bandgap, and ambient environment stability are so important for the modern industry, and Si-based semiconducting materials can match well with the previous silicon based electronic components. Thus, searching for such Si-based semiconductors has been one hot project due to the lack of them nowadays. Here, with the help of density functional theory, we found that the oxidized bilayer silicene exhibits high carrier mobility with a moderate direct bandgap of 1.02 eV. The high carrier mobility is caused by the remaining of big pi bond, and the moderate bandgap is opened by the saturation of dangling Si 3p bonds. Originated from the formation of strong Si-O and Si-Si bonds, the sample exhibits strong thermodynamic and dynamical stabilities. Our work indicates that the oxidized bilayer silicene has many potential applications in modern electronic fields.
Ultrahigh Energy Nuclei Propagation in a Structured, Magnetized Universe
Creators: name: Armengaud, Eric
name: Sigl, Guenter
name: Miniati, Francesco
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compare the propagation of iron and proton nuclei above 10^19 eV in a structured Universe with source and magnetic field distributions obtained from a large scale structure simulation and source densities about 10^(-5) Mpc^(-3). All relevant cosmic ray interactions are taken into account, including photo-disintegration and propagation of secondary products. Iron injection predicts spectral shapes different from proton injection which disagree with existing data below about 30 EeV. Injection of light nuclei or protons must therefore contribute at these energies. However, at higher energies, existing data are consistent with injection of pure iron with spectral indices between 2 and 2.4. This allows a significant recovery of the spectrum above roughly 100 EeV, especially in the case of large deflections. Significant auto-correlation and anisotropy, and considerable cosmic variance are also predicted in this energy range. The mean atomic mass A fluctuates considerably between different scenarios. At energies below 60 EeV, if the observed A > 35, magnetic fields must have a negligible effect on propagation. At the highest energies the observed flux will be dominated by only a few sources whose location may be determined by next generation experiments to within 10-20 degrees even if extra-galactic magnetic fields are important.
description: 17 pages, 35 ps figures included
Purchasing Locally Produced Fresh Vegetables: National Franchise vs. Locally Owned and Operated Restaurants
Creators: name: Rimal, Arbindra
name: Benjamin, Onyango
name: Rimal, Arbindra
name: Benjamin, Onyango
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agribusiness
subject: local food
subject: restaurant managers
subject: logit

description: The objective of this study is to examine purchasing practices of locally produced fresh vegetables among restaurants and food service institutions. The sample for the study included managers of 75 restaurants and dining centers out of a total of nearly 600 food service outlets in a mid-size metropolitan city in Midwest with a population of about 400,000. The study findings show differential preferences between national/regional chains and the local independently owned restaurants. Although managers across the board expressed willingness to buy local, actual purchasing decisions were largely driven by freshness, quality and availability. Price was not as critical a factor as others including variety and selection. The results suggest that local vegetable producers should use regularity, quality, and freshness to differentiate themselves. As a producer of small volume of fresh vegetables local farmers have much higher probability of success if they supply to locally and independently owned restaurants. These restaurants use small volume of vegetables in broader variety. Additionally, small variety growers may need to recast their business models as the industry seem to be moving towards fewer vegetables delivered round the year. These producers should consider investments in greenhouse to gain a competitive edge.
SANCscope -- v.1.00
Creators: name: Andonov, A.
name: Arbuzov, A.
name: Bardin, D.
name: Bondarenko, S.
name: Christova, P.
name: Kalinovskaya, L.
name: Nanava, G.
name: von Schlippe, W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this article we have summarized the status of the system SANC version 1.00. We have implemented theoretical predictions for many high energy interactions of fundamental particles at the one-loop precision level for up to 4-particle processes. In the present part of our SANC description we place emphasis on an extensive discussion of an important first step of calculations of the one-loop amplitudes of 3- and 4-particle processes in QED, QCD and EW theories. SANC version v1.00 is accessible from servers at Dubna http://sanc.jinr.ru/ (159.93.74.10) and CERN http://pcphsanc.cern.ch/ (137.138.180.42)
description: To appear in Computer Physics Communications
Market Power and/or Cost Efficiency in ITQ Fisheries
Creators: name: Cleary, Rebecca
name: Grainger, Corbett
name: Zipp, Katherine Y.
name: Cleary, Rebecca
name: Grainger, Corbett
name: Zipp, Katherine Y.
Publisher: name: Unknown
Year: 2011
Subjects: Agricultural and Food Policy
Environmental Economics and Policy

description: AAEA 2011 Selected Poster
Slotting Fees for Organic Retail Products: Evidence from a Survey of U.S. Food Retailers
Creators: name: Marasteanu, I. Julia
name: Jaenicke, Edward C.
name: Dimitri, Carolyn
name: Marasteanu, I. Julia
name: Jaenicke, Edward C.
name: Dimitri, Carolyn
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Organic
subject: slotting fees
subject: food retailers
subject: ordered logit

description: This paper investigates the prevalence of slotting fees in organic packaged and prepared products, and identifies the factors that influence the relative size of slotting fees. Based on a 2009 survey of U.S. food retailers, we find that 31 percent of surveyed retailers accept slotting fees for organic packaged and prepared products. Previous literature on slotting fees provides arguments for two rationales, one focused on the role slotting fees play in establishing an efficient allocation of shelf space for new products and the other focused on how slotting fees can be used strategically to price discriminate or otherwise increase rents to parties with more bargaining power. Using an ordered logit regression of the relative magnitude of slotting fees on retailer characteristics, we estimate coefficients that are mostly consistent with the economic efficiency rationale, with a few being consistent with the market power/strategic behavior rationale. More specifically, we find that the magnitude of slotting fees for organic products, relative to their non-organic counterparts, depends on a number of retailer characteristics, including the number of stores in the retailer’s chain, a retailer’s total sales, and the size of its organic marketing budget.
Long wavelength cosmological perturbations and preheating
Creators: name: Zibin, James Peter
Publisher: name: University of British Columbia
Year: 2009

description: This thesis is concerned with the evolution of long wavelength cosmological perturbations in the very early inflationary and post-inflationary stages of the universe. I first provide a thorough review of the relevent theoretical background. This material is presented in a completely original manner, with essentially all of the required results exposed together. Emphasis is made throughout on elucidating the physical meaning of the results. I next perform a study of a particular inflationary model for which there can be explosive growth of long wavelength perturbations due to the process of parametric resonance, and I try to determine whether the backreaction of small scale perturbations is sufficient to save the standard inflationary predictions. I conclude that, for certain parameter values, it is not. Then I describe in considerable detail general aspects of the evolution of long wavelenth modes. I provide a careful link between the evolution of a set of homogeneous background scalar fields, treated as a dynamical system, and the evolution of physical, long wavelength modes. I show that in general we expect several physical modes which cannot be gauged away, and whose evolution depends on the behaviour of the background system. In parametric resonance the resonance can be seen as the instability of a periodic orbit in the background phase space. Finally I demonstrate that another type of background instability, dynamical chaos, can similarly lead to the rapid growth of long wavelength modes.
Additional file 2 of Predicting the treatment response of certolizumab for individual adult patients with rheumatoid arthritis: protocol for an individual participant data meta-analysis
Creators: name: Luo, Yan
name: Chalkou, Konstantina
name: Yamada, Ryo
name: Funada, Satoshi
name: Salanti, Georgia
name: Toshi A. Furukawa
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer

description: Additional file 2. Search Strategies.
Efficient One-Loop-Renormalized Vertex Expansions with Connected Determinant Diagrammatic Monte Carlo
Creators: name: Šimkovic, Fedor
name: Rossi, Riccardo
name: Ferrero, Michel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a technique that enables the evaluation of perturbative expansions based on one-loop-renormalized vertices up to large expansion orders. Specifically, we show how to compute large-order corrections to the random phase approximation in either the particle-hole or particle-particle channels. The algorithm's efficiency is achieved by the summation over contributions of all symmetrized Feynman diagram topologies using determinants, and by integrating out analytically the two-body long-range interactions in order to yield an effective zero-range interaction. Notably, the exponential scaling of the algorithm as a function of perturbation order leads to a polynomial scaling of the approximation error with computational time for a convergent series. To assess the performance of our approach, we apply it to the non-perturbative regime of the square-lattice fermionic Hubbard model away from half-filling and report, as compared to the bare interaction expansion algorithm, significant improvements of the Monte Carlo variance as well as the convergence properties of the resulting perturbative series.
description: 12 pages, 10 figures
A Two-Stage Choice Experiment Approach to Elicit Consumer Preferences
Creators: name: Gao, Zhifeng
name: Yu, Xiaohua
name: Gao, Zhifeng
name: Yu, Xiaohua
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agribusiness
subject: Consumer/Household Economics
subject: Food Consumption/Nutrition/Food Safety
subject: Marketing
subject: FOS: Economics and business
subject: choice experiment
subject: milk
subject: attribute information

description: Another version will replace the current draft
Ceraleptus obtusus
Creators: name: Heyden, Torsten van der
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Coreidae
Ceraleptus
Ceraleptus obtusus

description: Ceraleptus obtusus (Brullé, 1839)
(Heteroptera: Coreidae) was reported by AUKEMA et al. (2006, 2013) and ROCA-CUSACHS et al. (2020) for the islands of El Hierro, La Palma, La Gomera and Tenerife. The island of Gran Canaria can be added to the list: On 22-03-2023, an adult specimen of C. obtusus was photographed in Agaete in the northwestern part of the island (Fig. 1) (see here).
description: Published as part of Heyden, Torsten van der, 2023, New records of Heteroptera from the Canary Islands (Spain), III, pp. 119-120 in Arquivos Entomolóxicos 26 on page 119, DOI: 10.5281/zenodo.12812265
Additional file 1 of Predicting the treatment response of certolizumab for individual adult patients with rheumatoid arthritis: protocol for an individual participant data meta-analysis
Creators: name: Luo, Yan
name: Chalkou, Konstantina
name: Yamada, Ryo
name: Funada, Satoshi
name: Salanti, Georgia
name: Toshi A. Furukawa
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer

description: Additional file 1. PRISMA-P checklist.
Kinematics of the Circumgalactic Medium of a $z = 0.77$ Galaxy from MgII Tomography
Creators: name: Mortensen, Kris
name: C., Keerthi Vasan G.
name: Jones, Tucker
name: Faucher-Giguere, Claude-Andre
name: Sanders, Ryan
name: Ellis, Richard S.
name: Leethochawalit, Nicha
name: Stark, Daniel P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Galaxy evolution is thought to be driven in large part by the flow of gas between galaxies and the circumgalactic medium (CGM), a halo of metal-enriched gas extending out to $\gtrsim100$ kpc from each galaxy. Studying the spatial structure of the CGM holds promise for understanding these gas flow mechanisms; however, the common method using background quasar sightlines provides minimal spatial information. Recent works have shown the utility of extended background sources such as giant gravitationally lensed arcs. Using background lensed arcs from the CSWA 38 lens system, we continuously probed, at a resolution element of about 15 kpc$^2$, the spatial and kinematic distribution of MgII absorption in a star-forming galaxy at $z=0.77$ (stellar mass $\approx 10^{9.7}$ M$_\odot$, star formation rate $\approx 10$ M$_\odot$ yr$^{-1}$) at impact parameters $D \simeq 5-30$ kpc. Our results present an anisotropic, optically thick medium whose absorption strength decreases with increasing impact parameter, in agreement with the statistics towards quasars and other gravitational arcs. Furthermore, we find generally low line-of-sight velocities in comparison to the relatively high velocity dispersion in the MgII gas (with typical $σ\approx 50$ km s$^{-1}$). While the galaxy itself exhibits a clear outflow (with MgII velocities up to $\sim 500$ km s$^{-1}$) in the down-the-barrel spectrum, the outflow component is sub-dominant and only weakly detected at larger impact parameters probed by the background arcs. Our results provide evidence of mainly dispersion-supported, metal-enriched gas recycling through the CGM.
description: 27 pages, 10 figures, 5 tables
The Environment, Trade and Innovation with Heterogeneous Firms: A Numerical Analysis
Creators: name: Cui, Jingbo
name: Ji, Yongjie
name: Cui, Jingbo
name: Ji, Yongjie
Publisher: name: Unknown
Year: 2011
Subjects: subject: Environmental Economics and Policy
subject: International Relations/Trade
subject: Research and Development/Tech Change/Emerging Technologies
subject: Cap and Trade
subject: Heterogeneous Firms
subject: Process Innovation
subject: Trade Pattern

description: We employ a two-sector heterogeneous firms model in the presence of endogenous innovation and environmental constraints. We perform simple numerical simulations concerning the implication of a stringent environmental policy and trade cost differences between dirty and clean inputs. Our objective is to highlight the effects of these policy proposals on the process innovation, trade pattern, and productivity dynamics.
Human capital and its effect on the farm business life cycle
Creators: name: Hadrich, Joleen C.
name: Hadrich, Joleen C.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agricultural Finance
subject: Farm Management
subject: Labor and Human Capital
subject: human capital
subject: farm life cycle
subject: farm growth

description: Human capital has been identified as significant determinant of farm size growth. However, there are numerous measures for human capital. Traditional measures include age, experience, and education of the principal operator and a management measure. This study identifies three types of management capabilities: production, financial, and human resource, as human capital measures. Farm size growth is estimated over a 15 year time period, 1994-2009. Results indicate that age of principal operator, financial management, and human resource management are significant determinants of farm size growth.