cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Los mercados de trabajo desde una perspectiva historica: el trabajo asalariado agrario en la Andalucia Betica
Creators: name: Estudillo, Antonio Lopez
name: Estudillo, Antonio Lopez
Publisher: name: Unknown
Year: 2006
Subjects: subject: Agribusiness
subject: Labor and Human Capital
subject: Mercados de trabajo agrarios
subject: composicion de la fuerza de trabajo
subject: migraciones regionales
subject: sistemas de remuneracion del trabajo. agricultural labor markets
subject: labor force and employment
subject: size and structure
subject: regional migration
subject: payment methods
subject: compensation methods and their effects

description: El trabajo agrario asalariado ha tenido gran importancia en la campina betica de muy antiguo dada la gran proporcion del espacio que ocupaban las grandes explotaciones de cultivo, la demanda de trabajo por estas conocia importantes fluctuaciones estacionales y obligaba a recurrir para tareas imprescincibles a gran numero de personas a quienes no podian emplease el grueso del ano. parte de esas tareas se efectuaron gracias a la reserva de trabajo disponible en la pequena explotacion. pero la atraccion del pequeno colono o propietario y la de trabajadores de otros oficios, mujeres, ninos e immigrantes, se alcanzo por medio de una compleja tipolgia de formas de contraatacion. El trabajo a destajo enfrento a menudo a jornaleros vecinos con inimigrantes y otros, y la capacidad de negociacion de los empresarios se vio fortalecida con el empleo intermitente de esos variados colectivos. Pero su participacion era inexcusable, y la diversidad de formas de contratacion y las intensas fluctuaciones del ingreso por dia de trabajo a lo largo del ano- respondian tambien a la definicion de incentivos adecuados a la variedad de situaciones preexistente entre esos trabajadores, a las necesidades diferenciadas de otras explotaciones menos extensas que tambien emplearon asalariados, y a las particularidades de muchas de las labores del universo del trabajo agrario...Agricultural wage-earning employment has, from very early on, been of great importance in the campina betica given the large proportion of territory that large agricultural holdings occupied. The demand for labor by these holdings experienced large seasonal fluctuations and made necessary, for the carrying out of essential tasks, the recourse to a large number of persons who could not be employed for a large part of the year. Some of these task were done thanks to a labor pool which was available in small holdings. But the attraction of the small settler or owner and of workers from other professions, women, children and immigrants, was achieved through a complex typology of hiring methods. Piecework often confronted neighboring laborers with immigrants and others, and the negotiating capacity of employers was strengthened by the intermittent employment of these varied groups. But their participation was inexcusable and the diverse hiring forms, also responded to the definition of adequate incentives per day's labor during the year earners and for the particularities of many of the labor of the agricultural employment universe.
Plasma-induced magnetic patterning of FePd thin films without and with exchange bias
Creators: name: Wang, Wei-Hsiang
name: Chang, Po-Chun
name: Jiang, Pei-hsun
name: Lin, Wen-Chin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We demonstrate control of magnetic domain structures in continuous FePd thin films by patterning their surfaces with plasma treatment. The Fe-oxide layer formed on the surface upon ambient exposure of the FePd alloy thin film grown on an Al$_2$O$_3$(0001) substrate was patterned into microstructures by e-beam lithography followed by O$_2$- or Ar-plasma treatment. Microscopic pinning of magnetic domain walls in the thin films is then observed by magneto-optic Kerr effect microscopy, with the magnetic field needed to reverse the magnetization of the plasma-treated areas being larger than that for the untreated areas. An intriguing competition between the uniaxial anisotropy and the exchange bias is also observed in the system. This study demonstrates that patterning of the film surface with plasma treatment can be an easy and efficient method for sophisticated engineering of magnetic structures in thin films, and therefore has potential application in developing future data-storage and spintronic devices.
description: Accepted for publication in Applied Surface Science
title: 2003: A Spatial Odyssey: Referring to Space in Makasai
Creators: name: Brotherson, Anna
Publisher: name: The Australian National University
Year: 2003
Subjects: subject: Makasai
subject: East Timor
subject: linguistics
subject: spatial
subject: space

description: This thesis provides an overview of how speakers of the East Timorese language Makasai (also known as Makasae) refer to space and spatial relationships. A summary of basic Makasai grammar is provided, followed by discussion and semantic analysis of space-denoting verbs, postpositions, directionals and demonstratives. The study is based on data collected by the author and other researchers at the Australian National University between July 2002 and November 2003.
Climate risk management practices of fish and shrimp farmers in the Mekong Region
Creators: name: Lebel, Louis
name: Jutagate, Tuantong
name: Phuong, Nguyen Thanh
name: Akester, Michael Joseph
name: Rangsiwiwat, Amornrat
name: Lebel, Phimphakan
name: Phousavanh, Phouvin
name: Navy, Hap
name: Soe, Khin Maung
name: Lebel, Boripat
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: As comparative multi-country studies are rare, not much is known about the effects of regional differences in social-ecological conditions on the adoption of climate risk management practices in aquaculture. This study is based on a large-scale survey of practices of aquaculture operators in Cambodia, Laos, Myanmar, Thailand, and Vietnam. Climate-related risks to profits of aquaculture farms in the Mekong Region are typically managed alongside water-related, disease and other business risks. Farmers who were more concerned with risks to profitability had a history of undertaking more risk management practices. Farmers growing shrimp (rather than fish), or adopting more intensified production systems, had more risk management practices. Wealthier and more educated farmers had experience with more practices for dealing with current risks, as well as recognized the need for strategies to adapt to a changing climate in the future. Information access is a factor in the adoption of new practices and strategies. Adoption of aeration or use of information-communication technologies to manage climate-related risks, for example, was more likely among more educated and wealthy farmers who belonged to growers’ groups. The findings also suggest that attitudes toward innovation, levels of investment and social norms influence adoption of technological, organizational and informational practices.
q-derivatives of multivariable q-hypergeometric function with respect to their parameters
Creators: name: Bytev, V.
name: Zhang, Pengming
Publisher: name: arXiv
Year: 2020
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: We consider the q-derivatives of the Srivastava and Daoust basic multivariable hypergeometric function with respect to the parameters. This function embodies a entire number of various q-hypergeometric series of one and several variables. Explicit equations are given for general case of summation indexes with positive real coefficients. As an example derivatives of q-analog of non-confluent Horn type hypergeometric function $H_3$ is presented.
Idas y vueltas en el desarrollo rural. De la diversificacion de las economias locales a lo rural como categoria economica global
Creators: name: Gonzalez, Fernandez
name: Gonzalez, Fernandez
Publisher: name: Unknown
Year: 2006
Subjects: subject: Community/Rural/Urban Development
subject: Labor and Human Capital
subject: Espana
subject: desarrollo rural
subject: mercados de trabajo
subject: reestructuracion
subject: cambio cultural
subject: Spain
subject: rural development
subject: labour markets
subject: restructuring
subject: cultural change.

description: Historicamente, hablar de economias o mercados de trabajo rurales ha supuesto, en el plano conceptual, adscribirlos a una escala territorial estatica, cerrada, dependiente. Este articulo, desde una perspective que privilegia el ambito economico y laboral, intenta poner de manifiesto como la ruralidad espanola se ha desterritorializado al tiempo que acentualdo el localismo; como, ademas, ha gloabalizado y homogeneizado algunos de sus rasgos a la vez que se ha incrementado la disparidad de situaciones de situaciones que en ella se pueden encontrar. Con ese fin se describe de que manera el medio rural ha transformado, diversificado y complejizado su base material mientras, de forma interrelacionada, han ido adquuiriendo cada vez mas importancia los aspectos inmateriales y simbolicos en la economia. Todo ello, se plantea, es fruto de los procesos de desagraarizacion y reestructuracion, de las politicas estatales de acento territorial, asi como de la integracion y la semantizacion economica...Rurality has been traditionally defined as a close, static and subordinate reality. This picture, however, is no longer accurate. Spanish countryside has been transformed, diversified and has become increasingly complex. From the economic and labour market points of view, it can be argued that Spanish rurality has get rid of territorial burdens, while localism has increased at the same time; furthermore, Spanish rurality has become more global and homogeneous in some aspects, but more diverse in others. Therefore. this article looks at the consequences of desagrarization and restructuring processes that have taken place within Spanish ruraliy. It also takes into account the territorial approaches of public polies. Finally, it considers the embeddedness and strengthening of symbolic values within Spanish rural economy.
Prospects for strong coupling measurement at hadron colliders using soft-drop jet mass
Creators: name: Hannesdottir, Holmfridur S.
name: Pathak, Aditya
name: Schwartz, Matthew D.
name: Stewart, Iain W.
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2022
Subjects: gluon, jet
correction, nonperturbative
quark, jet
jet, mass
p p, scattering
sensitivity
resummation
higher-order
precision measurement
strong coupling
hadron

description: We compute the soft-drop jet-mass distribution from $pp$ collisions to NNLL accuracy while including nonperturbative corrections through a field-theory based formalism. Using these calculations, we assess the theoretical uncertainties on an $\alpha_s$ precision measurement due to higher order perturbative effects, nonperturbative corrections, and PDF uncertainty. We identify which soft-drop parameters are well-suited for measuring $\alpha_s$, and find that higher-logarithmic resummation has a qualitatively important effect on the shape of the jet-mass distribution. We find that quark jets and gluon jets have similar sensitivity to $\alpha_s$, and emphasize that experimentally distinguishing quark and gluon jets is not required for an $\alpha_s$ measurement. We conclude that measuring $\alpha_s$ to the 10% level is feasible now, and with improvements in theory a 5% level measurement is possible. Getting down to the 1% level to be competitive with other state-of-the-art measurements will be challenging.
Gravity in Randall-Sundrum two D-brane model
Creators: name: Shiromizu, Tetsuya
name: Takahashi, Keitaro
name: Himemoto, Yoshiaki
name: Yamamoto, Shuto
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyse Randall-Sundrum two D-brane model by linear perturbation and then consider the linearised gravity on the D-brane. The qualitative contribution from the Kaluza-Klein modes of gauge fields to the coupling to the gravity on the brane will be addressed. As a consequence, the gauge fields localised on the brane are shown not to contribute to the gravity on the brane at large distances. Although the coupling between gauge fields and gravity appears in the next order, the ordinary coupling cannot be realised.
description: 8 pages
Development of an industrial image acquisition system for the measurement and dimensional control of wood furniture components
Creators: name: Jung, Brian
Publisher: name: University of British Columbia
Year: 2010

description: The Canadian secondary wood products industry has seen substantial growth since the early 1990's; however, the industry continues to face fierce global competition from European and Asian competitors. These competitors have maintained competitiveness by reducing production costs through the utilization of either advanced manufacturing technologies and/or low labour costs. Due to global pressures, Canadian companies have now started to focus on different areas to reduce production costs. Quality is one area that Canadian companies are focusing on because quality problems can contribute to a 2 to 5% revenue loss. To assist the Canadian industry in cost reductions, a proof-of-concept of a real-time automated quality control system was developed. The system took existing machine vision technologies from other industries and adapted them to a system designed specifically for the value-added industry. Basic optical metrology techniques were used to map the surface profile of the parts leaving a machine centre. Three different basic profiles (tongue, groove and chamfer) were used to test the prototype system. The accuracy of the system was verified against several other measurement systems; digital calipers, digital micrometer and laser profilometer. To meet the industry requirements, the system's target accuracy was set to ± 0.1mm. The prototype system, however, was not able to deliver consistent results due to a lack of camera resolution and a lack of precision in the mounting hardware. Fortunately, these problems can be remedied with modifications to the hardware and software.
Numerical model of the inhomogeneous scattering by the human lens
Creators: name: Cuadrado, A
name: Sanchez-Brea, LM
name: Torcal-Milla, FJ
name: Quiroga, JA
name: Gomez-Pedrero, JA
Publisher: name: arXiv
Year: 2024
Subjects: subject: Medical Physics (physics.med-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present in this work a numerical model for characterizing the scattering properties of the human lens. After analyzing the scattering properties of two main scattering particles actually described in the literature through Finite Element Method simulations, we have modified a Monte Carlo bulk scattering algorithm for computing ray scattering in non-sequential ray tracing. We have implemented this ray scattering algorithm in a layered model of the human lens in order to calculate the scattering properties of the whole lens. We have tested our algorithm by simulating the classic experiment carried out by Van der Berg et al for measuring in vitro the angular distribution of forward scattered light by the human lens. The results show the ability of our model to simulate accurately the scattering properties of the human lens.
Movilidad laboral y estrategias de arraigo rural
Creators: name: Oliva Serrano, Jesus
name: Oliva Serrano, Jesus
Publisher: name: Unknown
Year: 2006
Subjects: subject: Community/Rural/Urban Development
subject: Labor and Human Capital
subject: Movimientos pendulares
subject: trabajo rural
subject: movilidad laboral
subject: desarrollo rural
subject: estrategias sociales
subject: commuting
subject: rural labour
subject: labour mobility
subject: rural development
subject: social strategies

description: En este trabajo se lleva a cabo una reflexion sobre el papel que juega la movilidad laboral en el mundo rural y en particular en los procesos de arraigo. A partir del analisis de las Fuentes censales se exploran los paisajes, perfiles sociales y mercados de trabajo donde se insertan los trabajores pendulares que residen en las areas rurales para despues ilustrar estas estrategias con algunos casos recabados en diferentes trabajos de campo. El articulo pretende mostrar la importancia adquirida por la movilidad del trabajo y el potencial que encierran las ciencias sociales para comprender este fenomeno en toda su complejidad (por ejemplo, en relacion con los procesos de desarrollo local.) En este sentido, introduce el texto una discussion sobre sus consecuencias para el future del mundo rural y la oportunidad de su analisis... In this work we carry out a reflection about the role of labour mobility in the rural economiest and particularly in the processes of local settling. From the analysis of the census databases we explore the rural areas, social profiled and labour markets within which rural commuters become involved. Next, these processes are illustrated with some examples obtained from different qualitative field works. The paper claims to show the importance acquired by labour mobility and the potential that social sciences contains in order to understand the whole complexity of these social strategies. For example, in relation to local development. In this sense, the text is introduced by a discussion about the consequences of this process for the rural world and the opportunity of its analysis.
Species delimitation and phylogenetic relationships in the genus Trypoxylon (Hymenoptera: Crabronidae) using molecular markers: an alternative to taxonomic impediment
Creators: name: Sabadini, Camila Pereira
name: Machado, Carolina Barros
name: Vilhena, Patrícia Dos Santos
name: Garófalo, Carlos Alberto
name: Lama, Marco Antonio Del
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: The taxonomic identification of species is an essential issue in biological studies, as the uncertain taxonomy of a species hinders the investigation of its biology. Limitations regarding the description and identification of new species characterizes the “taxonomic impediment”. The genus Trypoxylon is an example of a taxon with this difficulty, particularly in the Neotropical region. It is a diverse genus composed of 631 described species that is divided in two subgenera – Trypoxylon (Trypoxylon), and Trypoxylon (Trypargilum), which are subdivided into groups and species complexes. To overcome the taxonomic impediment of Trypoxylon, the aim of the present study is to i) estimate molecular variation in order to delimit Trypoxylon species, and ii) determine evolutionary relationships among species to validate the morphological and behaviour-based infrageneric classification employing molecular data. The species delimitation analysis based on 333 COI sequences using genetic distance and phylogenetic and coalescence methods enabled us to define the single-threshold GMYC as the best model, as 45 out of 40 morphotypes/species were defined using this method. To determine phylogenetic relationships, we used sequences from two mitochondrial markers COI (n = 38) and CytB (n = 38) and a nuclear marker pol (n = 26), showing that molecular data were congruent with the infrageneric division of Trypoxylon and pointing to a probable third clade among Trypoxylon (Trypargilum) species. Moreover, the COI sequence-based estimation of divergence time (n = 102) suggests that Trypoxylon diversified in the Upper Cretaceous, and subsequent cladogenetic events occurred more frequently between the Eocene/Oligocene and throughout the Neogene. In summary, the molecular approach proved to be useful for overcoming difficulties in identifying Neotropical species of Trypoxylon.
A search for the first massive galaxy clusters
Creators: name: Willott, Chris J.
name: Crampton, David
name: Hutchings, John B.
name: Sawicki, Marcin
name: Simard, Luc
name: Jarvis, Matt J.
name: McLure, Ross J.
name: Percival, Will J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have obtained deep, multi-band imaging observations around three of the most distant known quasars at redshifts z>6. Standard accretion theory predicts that the supermassive black holes present in these quasars were formed at a very early epoch. If a correlation between black hole mass and dark matter halo mass is present at these early times, then these rare supermassive black holes will be located inside the most massive dark matter halos. These are therefore ideal locations to search for the first clusters of galaxies. We use the Lyman-break technique to identify star-forming galaxies at high redshifts. Our observations show no overdensity of star-forming galaxies in the fields of these quasars. The lack of (dust-free) luminous starburst companions indicates that the quasars may be the only massive galaxies in their vicinity undergoing a period of intense activity.
description: 6 pages, 2 figures, contributed paper to Proceedings of the Conference "Growing Black Holes" held in Garching, Germany, June 21-25, 2004, edited by A. Merloni, S. Nayakshin and R. Sunyaev, Springer-Verlag series of "ESO Astrophysics Symposia"
Filled Carbon Nanotubes as Anode Materials for Lithium-Ion Batteries
Creators: name: Thauer, Elisa
name: Ottmann, Alexander
name: Schneider, Philip
name: Möller, Lucas
name: Deeg, Lukas
name: Zeus, Rouven
name: Wilhelmi, Florian
name: Schlestein, Lucas
name: Neef, Christoph
name: Ghunaim, Rasha
name: Gellesch, Markus
name: Nowka, Christian
name: Scholz, Maik
name: Haft, Marcel
name: Wurmehl, Sabine
name: Wenelska, Karolina
name: Mijowska, Ewa
name: Kapoor, Aakanksha
name: Bajpai, Ashna
name: Hampel, Silke
name: Klingeler, Rüdiger
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Downsizing well-established materials to the nanoscale is a key route to novel functionalities, in particular if different functionalities are merged in hybrid nanomaterials. Hybrid carbon-based hierarchical nanostructures are particularly promising for electrochemical energy storage since they combine benefits of nanosize effects, enhanced electrical conductivity and integrity of bulk materials. We show that endohedral multiwalled carbon nanotubes (CNT) encapsulating high-capacity (here: conversion and alloying) electrode materials have a high potential for use in anode materials for lithium-ion batteries (LIB). There are two essential characteristics of filled CNT relevant for application in electrochemical energy storage: (1) rigid hollow cavities of the CNT provide upper limits for nanoparticles in their inner cavities which are both separated from the fillings of other CNT and protected against degradation. In particular, the CNT shells resist strong volume changes of encapsulates in response to electrochemical cycling, which in conventional conversion and alloying materials hinders application in energy storage devices. (2) Carbon mantles ensure electrical contact to the active material as they are unaffected by potential cracks of the encapsulate and form a stable conductive network in the electrode compound. Our studies confirm that encapsulates are electrochemically active and can achieve full theoretical reversible capacity. The results imply that encapsulating nanostructures inside CNT can provide a route to new high-performance nanocomposite anode materials for LIB.
description: Invited
Are spin junction transistors suitable for signal processing?
Creators: name: Bandyopadhyay, S.
name: Cahay, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A number of spintronic junction transistors, that exploit the spin degree of freedom of an electron in addition to the charge degree of freedom, have been proposed to provide simultaneous non-volatile storage and signal processing functionality. Here, we show that some of these transistors unfortunately may not have sufficient voltage and current gains for signal processing. This is primarily because of a large output ac conductance and poor isolation between input and output. The latter also hinders unidirectional propagation of logic signal from the input of a logic gate to the output. Other versions of these transistors appear to have better gain and isolation, but not better than those of a conventional transistor. Therefore, these devices may not improve state-of-the-art signal processing capability, although they may provide additional functionality by offering non-volatile storage. They may also have niche applications in non-linear circuits.
Cross-lingual neural fuzzy matching for exploiting target-language monolingual corpora in computer-aided translation
Creators: name: Esplà-Gomis, Miquel
name: Sánchez-Cartagena, Víctor M.
name: Pérez-Ortiz, Juan Antonio
name: Sánchez-Martínez, Felipe
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Computer-aided translation (CAT) tools based on translation memories (MT) play a prominent role in the translation workflow of professional translators. However, the reduced availability of in-domain TMs, as compared to in-domain monolingual corpora, limits its adoption for a number of translation tasks. In this paper, we introduce a novel neural approach aimed at overcoming this limitation by exploiting not only TMs, but also in-domain target-language (TL) monolingual corpora, and still enabling a similar functionality to that offered by conventional TM-based CAT tools. Our approach relies on cross-lingual sentence embeddings to retrieve translation proposals from TL monolingual corpora, and on a neural model to estimate their post-editing effort. The paper presents an automatic evaluation of these techniques on four language pairs that shows that our approach can successfully exploit monolingual texts in a TM-based CAT environment, increasing the amount of useful translation proposals, and that our neural model for estimating the post-editing effort enables the combination of translation proposals obtained from monolingual corpora and from TMs in the usual way. A human evaluation performed on a single language pair confirms the results of the automatic evaluation and seems to indicate that the translation proposals retrieved with our approach are more useful than what the automatic evaluation shows.
Learning User Latent Attributes on Social Media
Creators: name: Binxuan Huang
Publisher: name: Carnegie Mellon University
Year: 2020
Subjects: subject: 80709 Social and Community Informatics
subject: FOS: Media and communications

description: In recent years, there is a growing interest in using social media to understand social phenomena. Researchers have demonstrated many important applications of usingonline social media to understand real world events, such as presidential election prediction, earthquake early detection, and disaster management. A social media site is mixed with different types of users, in terms of gender, location, ideology, and etc. Different types of users may have different motivations, different opinions towards certain topics, different resources at their disposal, different behaviors in events. If researchers want to understand what is happening on a social media site, it is important to know where a post comes from, who wrote this post, and which party the authorbelongs to. However, this information is not explicitly provided by users. In this thesis, the goal is to predict users’ latent attributes such as their locations, social identities, and political orientations. Thanks to the massive text data on social media, we can learn rich knowledge from text to predict users’ attributes. In the meanwhile, text data from social media often comes with a significant amount of metadata. Furthermore, data from social networks also contains rich connection information, eg. mentioning, following. It is still a challenge task to combine text, meta data, usernetwork together for user attributes prediction.In this thesis, I approach user attributes prediction at three levels — single post, user timeline, graph-level classification. I start with a global location prediction system that uses one single tweet as input to learn one user’s location. It utilizeslocation-related features in a tweet, such as text and user profile metadata. I extend the tweet-level prediction system to user-level, which combines multiple posts in oneuser’s timeline. I demonstrate the effectiveness of this model on the task of user social identity classification. An improved user-level hierarchical location prediction model is also presented. In these described models, I mainly focus on learning user attributes from users themselves. In the next step, I consider social graph as additional information to improve performance. Users connected in a social network often show similarities in certain aspects, which is a well-known phenomenon called social homophily. Experiments demonstrate that combining a social graph dramatically improves the performance of our prediction system compared to the previous user-level method. As a case study of the attributes prediction system, I apply the method on a real world emergency event — the novel coronavirus outbreak starting from 2019. I demonstrate that we gain better understanding of the public conversation during thisglobal emergency event.
Estimation and comparison the exploitation amount from ground- water resources under alternative exploitation models and its effect on sustainability: the study of Bahar-Hamedan Plain
Creators: name: Soltani-Zoghi, Ahmad
name: Rahimi, Mahmood Haji
Publisher: name: figshare
Year: 2020
Subjects: subject: 140201 Agricultural Economics
subject: FOS: Economics and business

description: Considering the importance of groundwater resources, this study aims to estimate and compare the amount of demand for irrigation water and sustainability of ground water resource, in Bahar-Hamadan plain, under alternative policies and models of exploitation. For this purpose, the water demand function driven from a crop cost function, developed and estimated. The needed data collected from a survey through multi-stage classified sampling method. Results showed that in current condition or government intervention and legal control, the amount of water extracting equals 15855 m3 per hectare. This level of extracting is high and non-sustainable. In contrast, the amount of water extraction for perfect participation by water users in exploitation model, estimated to be equal 9182 m3 per hectare; which could be considered as the best alternative model for decreasing water use and reaching the sustainable allocation of water.
On the polyamorphism of fullerite-based orientational glasses
Creators: name: Aleksandrovskii, A. N.
name: Bakai, A. S
name: Cassidy, D.
name: Dolbin, A. V.
name: Esel'son, V. B.
name: Gadd, G. E.
name: Gavrilko, V. G.
name: Manzhelii, V. G.
name: Moricca, S.
name: Sundqvist, B.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The dilatometric investigation in the temperature range of 2-28K shows that a first-order polyamorphous transition occurs in the orientational glasses based on C60 doped with H2, D2 and Xe. A polyamorphous transition was also detected in C60 doped with Kr and He. It is observed that the hysteresis of thermal expansion caused by the polyamorphous transition (and, hence, the transition temperature) is essentially dependent on the type of doping gas. Both positive and negative contributions to the thermal expansion were observed in the low temperature phase of the glasses. The relaxation time of the negative contribution occurs to be much longer than that of the positive contribution. The positive contribution is found to be due to phonon and libron modes, whilst the negative contribution is attributed to tunneling states of the C60 molecules. The characteristic time of the phase transformation from the low-T phase to the high-T phase has been found for the C60-H2 system at 12K. A theoretical model is proposed to interpret these observed phenomena. The theoretical model proposed, includes a consideration of the nature of polyamorphism in glasses, as well as the thermodynamics and kinetics of the transition. A model of non-interacting tunneling states is used to explain the negative contribution to the thermal expansion. The experimental data obtained is considered within the framework of the theoretical model. From the theoretical model the order of magnitude of the polyamorphous transition temperature has been estimated. It is found that the late stage of the polyamorphous transformation is described well by the Kolmogorov law with an exponent of n=1. At this stage of the transformation, the two-dimensional phase boundary moves along the normal, and the nucleation is not important.
description: 29 pages, 14 figures, added references, corrected typos
Force exerted on particle bunch propagating near plasma-vacuum boundary
Creators: name: Lotov, Konstantin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: If a charged particle bunch propagates near a plasma-vacuum boundary, it excites a surface wave and experiences a force caused by the boundary. For the linearly responding plasma and ultra-relativistic bunch, the spatial distribution of excited fields is calculated, and the force exerted on a short and narrow bunch is approximated by elementary functions. The force attracts the bunch to the boundary, if the bunch is in the vacuum, and repels otherwise. There are also additional focusing and defocusing components of the force.
description: 9 pages, 10 figures
Konkurencyjność sektora rolno-spożywczego UE w świetle wyników handlu zagranicznego wybranych państw
Creators: name: Wieliczko, Barbara
name: Wieliczko, Barbara
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: International Relations/Trade
subject: Productivity Analysis
subject: EU agriculture
subject: competitiveness
subject: international trade
subject: / rolnictwo UE
subject: konkurencyjność
subject: handel zagraniczny

description: With the increasing competition in the global markets of agri-food products permanently sustaining the competitive potential of the EU agri-food sector becomes more and more important. The aim of the paper is to assess the competitiveness of EU agri-food sector based on the results of international trade in agri-food products and to name the direction of activities that could enable holding the current position of the EU at the global markets. The results show a systematic increase in the value of foreign trade and its concentration on chosen groups of products. It is recommendable that the EU concentrates on competing based on high quality and specific features of the agri-food products produced in the EU. / Synopsis. Wobec rosnącej konkurencji na światowych rynkach produktów rolno-spożywczych stałe podtrzymywanie potencjału konkurencyjnego sektora rolno-spożywczego UE nabiera rosnącego znaczenia. Celem artykułu jest ocena stanu konkurencyjności sektora rolno-spożywczego UE dokonana w oparciu o wyniki handlu zagranicznego artykułami rolno-spożywczymi oraz określenie kierunków działań mających na celu utrzymanie pozycji handlowej UE. Uzyskane wyniki wskazują na systematyczny wzrost wartości wymiany handlowej oraz jej koncentrację na wybranych grupach produktów. Wskazano również na możliwość konkurowania w oparciu o jakość oraz unikalną specyfikę produktów rolno-spożywczych wytwarzanych w UE.
Variational study of the ground state and spin dynamics of the spin-$\frac{1}{2}$ Kagome antiferromagnetic Heisenberg model and its implication on Hebertsmithite ZnCu$_{3}$(OH)$_{6}$Cl$_{2}$
Creators: name: Zhang, Chun
name: Li, Tao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We find that the best RVB state of the spin-$\frac{1}{2}$ Kagome antiferromagnetic Heisenberg model(spin-$\frac{1}{2}$ KAFH) is described by a $Z_{2}$ gapped mean field ansatz, which hosts a mean field spinon dispersion very different from that of the widely studied $U(1)$ Dirac spin liquid state. However, we find that the physical spin fluctuation spectrum calculated from the Gutzwiller projected RPA(GRPA) theory above such an RVB state is actually gapless and is almost identical to that above the $U(1)$ Dirac spin liquid state. We find that such a peculiar behavior can be attributed to the unique flat band physics on the Kagome lattice, which makes the mapping between the mean field ansatz and the RVB state non-injective. We find that the spin fluctuation spectrum of the spin-$\frac{1}{2}$ KAFH is not at all featureless, but is characterized by a prominent spectral peak at about $0.25J$ around the $\mathbf{M}$ point, which is immersed in a broad continuum extending to $2.7J$. Based on these results, we argue that the spectral peak below 2 meV in the inelastic neutron scattering(INS) spectrum of Hebertsmithite ZnCu$_{3}$(OH)$_{6}$Cl$_{2}$, which has been attributed to the contribution of Cu$^{2+}$ impurity spins occupying the Zn$^{2+}$ site, should rather be understood as the intrinsic contribution from the Kagome layer. We propose to verify such a picture by measuring the Knight shift on the Cu site, rather than the O site, which is almost blind to the spin fluctuation at the $\mathbf{M}$ point as a result of the strong antiferromagnetic correlation between nearest neighboring spins on the Kagome lattice.
description: 11 pages, 12 figures, part of the results already appeared in arXiv:1807.09463
Predation or omnivory – two different feeding patterns displayed by two intraspecific groups of the invasive Ponto-Caspian amphipod - Dikerogammarus villosus_Supplementary materials.docx
Creators: name: Podwysocki, Krzysztof
name: Szczerkowska-Majchrzak, Eliza
name: Jermacz, Łukasz
name: Kobak, Jaroslaw
name: Bącela-Spychalska, Karolina
name: Rewicz, Tomasz
name: Desiderato, Andrea
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 310301
subject: Behavioural ecology
classificationCode: 310304
subject: Freshwater ecology
classificationCode: 310307
subject: Population ecology

description: Supplementary material of the paper: Predation or omnivory – two different feeding patterns displayed by two intraspecific groups of the invasive Ponto-Caspian amphipod - Dikerogammarus villosusTable S1. Average environmental data of the four sites studied.Table S2. Raw measurements and factors (Season, Group, Site, Sex, type of food, Replicate and Operator) for each specimen of the experiment of the food consumption.Table S3. Raw measurements of food variation in the different controls of the food consumption.Table S4. Raw measurements and data used for the analyses of the food preference, including the proportion of consumed food, the relative consumption, the proportion of given food to total provided, Ivlev's selectivity index.Table S5. Raw measurements of food variation in the different controls of the food preference.Table S6. Model selection based on AICc for leaf consumption.Table S7. Model selection based on AICc for fish consumption.Table S8. Model selection based on AICc for chironomid larvae consumption.Table S9. Model selection based on AICc for selectivity towards leaf.Table S10. Model selection based on AICc for selectivity towards fish.Table S11. Model selection based on AICc for selectivity towards chironomid larvae.Table S12. Post hoc pairwise comparisons for the effect of the season in the GLMM analysis for leaf consumption.Table S13. Post hoc pairwise comparisons for the effect of the season in the GLMM analysis for fish tissue consumption.Table S14. Post hoc pairwise comparisons for the effect of the season in the GLMM analysis for chironomid larvae consumption.Table S15. Post hoc pairwise comparisons for the effect of the season in the GLMM analysis for selectivity towards leaf in food preference experiment.Table S16. Post hoc pairwise comparisons for the effect of the group * sex interaction in the GLMM analysis for selectivity towards chironomid larvae in food preference experiment.Table S17. Post hoc pairwise comparisons for the effect of the season * amphipod weight interaction in the GLMM analysis for selectivity towards chironomid larvae in food preference experiment.
Cluster form factor calculation in the ab initio no-core shell model
Creators: name: Navratil, Petr
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We derive expressions for cluster overlap integrals or channel cluster form factors for ab initio no-core shell model (NCSM) wave functions. These are used to obtain the spectroscopic factors and can serve as a starting point for the description of low-energy nuclear reactions. We consider the composite system and the target nucleus to be described in the Slater determinant (SD) harmonic oscillator (HO) basis while the projectile eigenstate to be expanded in the Jacobi coordinate HO basis. This is the most practical case. The spurious center of mass components present in the SD bases are removed exactly. The calculated cluster overlap integrals are translationally invariant. As an illustration, we present results of cluster form factor calculations for <5He|4He+n>, <5He|3H+d>, <6Li|4He+d>, <6Be|3He+3He>, <7Li|4He+3H>, <7Li|6Li+n>, <8Be|6Li+d>, <8Be|7Li+p>, <9Li|8Li+n> and <13C|12C+n>, with all the nuclei described by multi-hbar Omega NCSM wave functions.
description: 28 pages, 16 figures
Rola klastrów w procesie internacjonalizacji polskiego sektora rolno-spożywczego
Creators: name: Wierzejski, Tomasz
name: Nasalski, Zbigniew
name: Wierzejski, Tomasz
name: Nasalski, Zbigniew
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: International Development
subject: clusters
subject: internationalization
subject: export
subject: agri-food sector
subject: / klastry
subject: internacjonalizacja
subject: eksport
subject: sektor rolno-spożywczy

description: The aim of this article was to define the essence, scope and goal of clusters in the agri-food sector, in the context of its internationalization. The characteristic of the internationalization of Polish food economy as well clusters activities were presented. The results indicated the significant potential of clusters initiatives in the implementetion of quality-orientated, international strategies in polish agri-food sector. / Synopsis. Celem artykułu było określenie istoty, zakresu oraz celu funkcjonowania klastrów w sektorze rolno-spożywczym, w kontekście jego internacjonalizacji. Przedstawiono charakterystykę umiędzynarodowienia polskiej gospodarki żywnościowej oraz działalność klastrów w tym sektorze. Wyniki badania wskazały na istotny potencjał inicjatyw klastrowych we wdrażaniu projakościowych strategii internacjonalizacji polskiego sektora rolno-spożywczego.
Protoclusters at z=5.7: A view from the MultiDark galaxies
Creators: name: Cui, Weiguang
name: Qiao, Jiaqi
name: Dave, Romeel
name: Knebe, Alexander
name: Peacock, John A.
name: Yepes, Gustavo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Protoclusters, which will yield galaxy clusters at lower redshift, can provide valuable information on the formation of galaxy clusters. However, identifying progenitors of galaxy clusters in observations is not an easy task, especially at high redshift. Different priors have been used to estimate the overdense regions that are thought to mark the locations of protoclusters. In this paper, we use mimicked Ly$α$-emitting galaxies at $z=5.7$ to identify protoclusters in the MultiDark galaxies, which are populated by applying three different semi-analytic models to the 1 $Gpc h^{-1}$ MultiDark Planck2 simulation. To compare with observational results, we extend the criterion 1 (a Ly$α$ luminosity limited sample), to criterion 2 (a match to the observed mean galaxy number density). To further statistically study the finding efficiency of this method, we enlarge the identified protocluster sample (criterion 3) to about 3500 at $z=5.7$ and study their final mass distribution. The number of overdense regions and their selection probability depends on the semi-analytic models and strongly on the three selection criteria (partly by design). The protoclusters identified with criterion 1 are associated with a typical final cluster mass of $2.82\pm0.92 \times 10^{15} M_\odot$ which is in agreement with the prediction (within $\pm 1 σ$) of an observed massive protocluster at $z=5.7$. Identifying more protoclusters allows us to investigate the efficiency of this method, which is more suitable for identifying the most massive clusters: completeness ($\mathbb{C}$) drops rapidly with decreasing halo mass. We further find that it is hard to have a high purity ($\mathbb{P}$) and completeness simultaneously.
description: 10 pages, 4 figures, 2 tables, version matched to the publication in MNRAS
title: Sovereignty and land tenure in the British Colonial Asia and Australia
Creators: name: Knapman, Gareth
Publisher: name: The Australian National University
Year: 2025

description: This thesis examines the question: How did British colonial agents in Asia and Australia interpret the relationship between sovereignty and land ownership? The question of this thesis reflects the real dilemma that British colonial agents faced in colonial territories in Asia. In the mid-18th century, the British legal theorist William Blackstone had defined sovereignty 's 'supreme, irresistible, absolute, uncontrolled authority', but in many colonial territories, British sovereignty was not a clear fact. For example, British East India Company's authority in Bengal relied on the right to collect tax (Diwan) for the Mughal Emperor. Under British feudal law, all land was owned by the sovereign; subjects possessed only tenure over the land, not the land itself. In Bengal (acquired after 1757), Penang (acquired in 1786), and Singapore (acquired in 1819), British colonial agents applied their feudal understanding of sovereignty and land tenure to determine the various pre-existing rights of local people over land, and to determine to what extent these rights constituted sovereignty or shared sovereignty over the land. The answers to these questions then indicated how these rights related to colonial rule. This thesis argues that British approaches to Asian systems of political rule were framed by ideas of feudalism. The thesis concludes by examining how these ideas of feudalism were applied to the colonies of New South Wales, Port Phillip and Sarawak .