cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Squeezed light induced symmetry breaking superradiant phase transition
Creators: name: Zhu, Chengjie
name: Ping, Leilei
name: Yang, Yaping
name: Agarwal, Girish S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We theoretically investigate the quantum phase transition in the collective systems of qubits in a high-quality cavity, which is driven by a squeezed light. We show that the squeezed light induced symmetry breaking can result in quantum phase transition without the ultrastrong coupling requirement. Using the standard mean field theory, we derive the condition of the quantum phase transition. Surprisingly, we show that there exists a tricritical point where the first- and second-order phase transitions meet. With specific atom-cavity coupling strengths, both the first- and second-order phase transition can be controlled by the squeezed light, leading to an optical switching from the normal phase to the superradiant phase by just increasing the squeezed light intensity. The signature of these phase transitions can be observed by detecting the phase space Wigner function distribution with different profiles controlled by the squeezed light intensity. Such superradiant phase transition can be implemented in various quantum systems, including atoms, quantum dots and ions in optical cavities as well as the circuit quantum electrodynamics system.
Integrating stakeholders’ perspectives and spatial modelling to develop scenarios of future land use and land cover change in northern Tanzania
Creators: name: Kariuki, Rebecca W.
name: Munishi, Linus K.
name: Courtney-Mustaphi, Colin J.
name: Capitani, Claudia
name: Shoemaker, Anna
name: Lane, Paul J.
name: Marchant, Rob
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: subject: Research Article
subject: Ecology and environmental sciences
subject: People and places
subject: Social sciences
subject: FOS: Social sciences
subject: Biology and life sciences
subject: Earth sciences

description: Rapid rates of land use and land cover change (LULCC) in eastern Africa and limited instances of genuinely equal partnerships involving scientists, communities and decision makers challenge the development of robust pathways toward future environmental and socioeconomic sustainability. We use a participatory modelling tool, Kesho, to assess the biophysical, socioeconomic, cultural and governance factors that influenced past (1959–1999) and present (2000–2018) LULCC in northern Tanzania and to simulate four scenarios of land cover change to the year 2030. Simulations of the scenarios used spatial modelling to integrate stakeholders’ perceptions of future environmental change with social and environmental data on recent trends in LULCC. From stakeholders’ perspectives, between 1959 and 2018, LULCC was influenced by climate variability, availability of natural resources, agriculture expansion, urbanization, tourism growth and legislation governing land access and natural resource management. Among other socio-environmental-political LULCC drivers, the stakeholders envisioned that from 2018 to 2030 LULCC will largely be influenced by land health, natural and economic capital, and political will in implementing land use plans and policies. The projected scenarios suggest that by 2030 agricultural land will have expanded by 8–20% under different scenarios and herbaceous vegetation and forest land cover will be reduced by 2.5–5% and 10–19% respectively. Stakeholder discussions further identified desirable futures in 2030 as those with improved infrastructure, restored degraded landscapes, effective wildlife conservation, and better farming techniques. The undesirable futures in 2030 were those characterized by land degradation, poverty, and cultural loss. Insights from our work identify the implications of future LULCC scenarios on wildlife and cultural conservation and in meeting the Sustainable Development Goals (SDGs) and targets by 2030. The Kesho approach capitalizes on knowledge exchanges among diverse stakeholders, and in the process promotes social learning, provides a sense of ownership of outputs generated, democratizes scientific understanding, and improves the quality and relevance of the outputs.
Limnocoris minutus De Carlo 1951
Creators: name: Moreira, Felipe Ferraz Figueiredo
name: Barbosa, Julianna Freires
name: Ribeiro, José Ricardo Inacio
name: Alecrim, Viviani Pereira
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Naucoridae
Limnocoris
Limnocoris minutus

description: Limnocoris minutus De Carlo, 1951
Geographical distribution: Brazil, Paraguay and Argentina.
 Distribution in Brazil: Central-West Region (MT) (Pagioro et al. 2007).
description: Published as part of Moreira, Felipe Ferraz Figueiredo, Barbosa, Julianna Freires, Ribeiro, José Ricardo Inacio & Alecrim, Viviani Pereira, 2011, Checklist and distribution of semiaquatic and aquatic Heteroptera (Gerromorpha and Nepomorpha) occurring in Brazil 2958, pp. 1-74 in Zootaxa 2958 (1) on page 46, DOI: 10.11646/zootaxa.2958.1.1, http://zenodo.org/record/5281851
Deprojecting Densities from Angular Cross-Correlations
Creators: name: Eisenstein, Daniel J.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: I present a model-independent spherically symmetric density estimator to be used in the cross-correlation of imaging catalogs with objects of known redshift. The estimator is a simple modification of the usual projected density estimator, with weightings that produce a spherical aperture rather than a cylindrical one.
description: 10 pages, LaTeX, 1 figure. Submitted to ApJL
Additional file 4 of Impact of age and mean intracranial pressure on the morphology of intracranial pressure waveform and its association with mortality in traumatic brain injury
Creators: name: Kasprowicz, Magdalena
name: Mataczyński, Cyprian
name: Uryga, Agnieszka
name: Pelah, Adam I.
name: Schmidt, Eric
name: Czosnyka, Marek
name: Kazimierska, Agnieszka
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified

description: Additional file4 (DOCX 31 KB)
Algebraic Bethe Ansatz for Integrable Extended Hubbard Models Arising from Supersymmetric Group Solutions
Creators: name: Bracken, Anthony J.
name: Ge, Xiang-Yu
name: Gould, Mark D.
name: Links, Jon
name: Zhou, Huan-Qiang
Publisher: name: arXiv
Year: 2001
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Integrable extended Hubbard models arising from symmetric group solutions are examined in the framework of the graded Quantum Inverse Scattering Method. The Bethe ansatz equations for all these models are derived by using the algebraic Bethe ansatz method.
description: 15 pages, RevTex, No figures, to be published in J. Phys. A
The Relationship between Centaurs and Jupiter Family Comets with Implications for K-Pg-type Impacts
Creators: name: Grazier, Kevin R.
name: Horner, Jonathan
name: Castillo-Rogez, Julie C.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Centaurs--icy bodies orbiting beyond Jupiter and interior to Neptune--are believed to be dynamically related to Jupiter Family Comets (JFCs), which have aphelia near Jupiter's orbit and perihelia in the inner Solar System. Previous dynamical simulations have recreated the Centaur/JFC conversion, but the mechanism behind that process remains poorly described. We have performed a numerical simulation of Centaur analogues that recreates this process, generating a dataset detailing over 2.6 million close planet/planetesimal interactions. We explore scenarios stored within that database and, from those, describe the mechanism by which Centaur objects are converted into JFCs. Because many JFCs have perihelia in the terrestrial planet region, and since Centaurs are constantly resupplied from the Scattered Disk and other reservoirs, the JFCs are an ever-present impact threat.
description: Companion paper to "It's Complicated: A Big Data Approach to Exploring Planetesimal Evolution in the Presence of Jovian Planets" in The Astronomical Journal: https://doi.org/10.3847/1538-3881/aae095
Classification of anomaly-free 2HDMs with a gauged U(1)' symmetry
Creators: name: Ordell, Astrid
name: Pasechnik, Roman
name: Serôdio, Hugo
name: Teichmann, Franz
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Two-Higgs-doublet models (2HDMs) with a flavored U(1)' gauge symmetry are a popular extension to the Standard Model (SM), yet they currently lack a complete survey. In this paper, we present a full classification of anomaly-free 2HDMs within the SM fermion content, resulting in a total of eleven distinct models. Four of these are relatively well-studied, while the rest either partially, or entirely, lack previous treatment. We study these textures under a variety of experimental bounds, focusing mainly on the previously unexplored models. This work is intended to act as a catalog to models worth considering in greater detail.
description: 21 pages, 10 figures, 7 tables; published version
The Impact of Households’ Characteristics on Food at Home and Food away from Home
Creators: name: Kim, GwanSeon
name: Saghaian, Sayed H.
name: Kim, GwanSeon
name: Saghaian, Sayed H.
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: food away from home
subject: food at home
subject: Tobit model
subject: food stamp

description: In this research, we investigate the impact of income and household characteristics on food expenditures both at home and away from home, to identify the factors affecting total food expenditures. The main goal of this paper is to investigate how differently household food expenditures are affected by socio-economic characteristics and food stamp benefits. We use the 2013 Consumer Expenditure Survey (CES) dataset from the U.S. Bureau of Labor Statistics (BLS), and incorporate the Tobit model to calculate the marginal effects. The results show variables like male, white, employed, and geographic location have different impacts on food expenditures at home and away. Also, food stamp benefits affect food expenditure away from home negatively by $9.68, but affect food expenditure at home positively by $5.79. These results have implications for policy makers and analysts.
Additional file 5 of Impact of age and mean intracranial pressure on the morphology of intracranial pressure waveform and its association with mortality in traumatic brain injury
Creators: name: Kasprowicz, Magdalena
name: Mataczyński, Cyprian
name: Uryga, Agnieszka
name: Pelah, Adam I.
name: Schmidt, Eric
name: Czosnyka, Marek
name: Kazimierska, Agnieszka
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified

description: Additional file5 (DOCX 17 KB)
Mutational signatures: experimental design and analytical framework
Creators: name: Koh, Gene
name: Zou, Xueqing
name: Nik-Zainal, Serena
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Review

description: Funder: Dr. Josef Steiner Krebsstiftung; doi: http://dx.doi.org/10.13039/100008669
description: Abstract: Mutational signatures provide a powerful alternative for understanding the pathophysiology of cancer. Currently, experimental efforts aimed at validating and understanding the etiologies of cancer-derived mutational signatures are underway. In this review, we highlight key aspects of mutational signature experimental design and describe the analytical framework. We suggest guidelines and quality control measures for handling whole-genome sequencing data for mutational signature analyses and discuss pitfalls in interpretation. We envision that improved next-generation sequencing technologies and molecular cell biology approaches will usher in the next generation of studies into the etiologies and mechanisms of mutational patterns uncovered in cancers.
SUSY Quivers, Intersecting Branes and the Modest Hierarchy Problem
Creators: name: Cremades, D.
name: Ibanez, L. E.
name: Marchesano, F.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a class of chiral non-supersymmetric D=4 field theories in which quadratic divergences appear only at two loops. They may be depicted as ``SUSY quivers'' in which the nodes represent a gauge group with extended e.g., N=4 SUSY whereas links represent bifundamental matter fields which transform as chiral multiplets with respect to different N=1 subgroups. One can obtain this type of field theories from simple D6-brane configurations on Type IIA string theory compactified on a six-torus. We discuss the conditions under which this kind of structure is obtained from D6-brane intersections. We also discuss some aspects of the effective low-energy field theory. In particular we compute gauge couplings and Fayet-Iliopoulos terms from the Born-Infeld action and show how they match the field theory results. This class of theories may be of phenomenological interest in order to understand the modest hierarchy problem i.e., the stability of the hierarchy between the weak scale and a fundamental scale of order 10-100 TeV which appears e.g. in low string scale models. Specific D-brane models with the spectrum of the SUSY Standard Model and three generations are presented.
description: 36 pages, using JHEP3.cls, 8 figures. References updated
Additional file 1 of Exploring the link between fat-soluble vitamins and aging-associated immune system status: a literature review
Creators: name: Schmieder, Hendrik
name: Leischner, Christian
name: Piotrowsky, Alban
name: Marongiu, Luigi
name: Venturelli, Sascha
name: Burkard, Markus
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Computational Biology

description: Supplementary Material 1.
Nonequilibrium dynamics of urn models
Creators: name: Godreche, C.
name: Luck, J. M.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Dynamical urn models, such as the Ehrenfest model, have played an important role in the early days of statistical mechanics. Dynamical many-urn models generalize the former models in two respects: the number of urns is macroscopic, and thermal effects are included. These many-urn models are exactly solvable in the mean-field geometry. They allow analytical investigations of the characteristic features of nonequilibrium dynamics referred to as aging, including the scaling of correlation and response functions in the two-time plane and the violation of the fluctuation-dissipation theorem. This review paper contains a general presentation of these models, as well as a more detailed description of two dynamical urn models, the backgammon model and the zeta urn model.
description: 15 pages. Contribution to the Proceedings of the ESF SPHINX meeting `Glassy behaviour of kinetically constrained models' (Barcelona, March 22-25, 2001). To appear in a special issue of J. Phys. Cond. Matt
The Abbreviated Science Anxiety Scale: Psychometric properties, gender differences and associations with test anxiety, general anxiety and science achievement
Creators: name: Megreya, Ahmed M.
name: Szűcs, Denes
name: Moustafa, Ahmed A.
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: subject: Research Article
subject: Biology and life sciences
subject: Social sciences
subject: FOS: Social sciences
subject: Research and analysis methods
subject: Physical sciences
subject: FOS: Physical sciences
subject: Science policy

description: Science anxiety refers to students’ negative emotions about learning science. Across two studies, we investigated the psychometric properties of the newly developed Abbreviated Science Anxiety Scale (ASAS), which was adapted from the modified Abbreviated Math Anxiety Scale (m-AMAS) (Carey E., 2017). Using a sample of students in grades 7 to 10 (N = 710), Study 1 reported a two-factor structure of the ASAS (learning science anxiety and science evaluation anxiety) and negative associations between the ASAS factors and science achievement. Study 2 replicated this two-factor model in students in grades 11 and 12 (N = 362) and found that students in the “Arts” track were more anxious about science than those in “Sciences” track. Both studies consistently reported positive inter-correlations between the ASAS factors, with good internal reliabilities and modest meaningful associations with test anxiety and general anxiety, suggesting that science anxiety might be a distinct construct. Further, female students had higher science anxiety (especially science evaluation anxiety) than male students, even when test anxiety and general anxiety were considered in models. In summary, the ASAS is a brief, valid, and reliable instrument that can be used to guide and improve science education.
Observation of ultra-high mobility excitons in a strain field by space- and time-resolved spectroscopy at sub-Kelvin temperatures
Creators: name: Morita, Yusuke
name: Suzuki, Hirosuke
name: Yoshioka, Kosuke
name: Kuwata-Gonokami, Makoto
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We measured basic parameters such as the lifetime, mobility, and diffusion constant of trapped paraexcitons in cuprous oxide at very low temperatures (below 1 K) using a dilution refrigerator. To obtain these parameters, we observed the space- and time-resolved luminescence spectrum of paraexcitons in strain-induced trap potential. We extracted the lifetime of 410 ns from the measurements of the decay of the luminescence intensity. By comparing the experimental results and numerical calculations, we found that the mobility and the diffusion constant increase as the temperature of the paraexcitons decreases below 1 K. In particular, we obtained a mobility of 5.1e7 cm^2/V*s at the corresponding temperature of 280 mK. To the best of our knowledge, this value is the highest exciton mobility that has been measured. These results show that the mean free path of the paraexcitons reaches a size (~300 um) comparable to that of the cloud of trapped paraexcitons (~100 um). From our analyses, we found that the spatial distribution of the paraexcitons can reach a distribution that is defined by the statistical distribution function and the shape of the three-dimensional trap potential at ultra-low temperatures (well below 1 K). Our survey shows that the ultra-low temperature ensures that the Bose--Einstein condensation transition in a trap potential can be investigated by examining the spatial distribution of the density of 1s paraexcitons.
Limnocoris nigropunctatus Montandon 1909
Creators: name: Moreira, Felipe Ferraz Figueiredo
name: Barbosa, Julianna Freires
name: Ribeiro, José Ricardo Inacio
name: Alecrim, Viviani Pereira
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Naucoridae
Limnocoris
Limnocoris nigropunctatus

description: Limnocoris nigropunctatus Montandon, 1909
Geographical distribution: Brazil.
 Distribution in Brazil: Southeast and South regions (MG, SP, RJ, PR, SC) (Nieser & López-Ruf 2001; Ribeiro et al. 2010).
description: Published as part of Moreira, Felipe Ferraz Figueiredo, Barbosa, Julianna Freires, Ribeiro, José Ricardo Inacio & Alecrim, Viviani Pereira, 2011, Checklist and distribution of semiaquatic and aquatic Heteroptera (Gerromorpha and Nepomorpha) occurring in Brazil 2958, pp. 1-74 in Zootaxa 2958 (1) on page 46, DOI: 10.11646/zootaxa.2958.1.1, http://zenodo.org/record/5281851
Effects of gestational age at delivery and type of labor on neonatal outcomes among infants with gastroschisis†
Creators: name: Girsen, Anna I.
name: Davis, Alexis S.
name: Hintz, Susan R.
name: Fluharty, Elizabeth
name: Sherwin, Katie
name: Trepman, Paula
name: Desai, Arti
name: Mansour, Trina
name: Sylvester, Karl G.
name: Oshiro, Bryan
name: Blumenfeld, Yair J.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: To investigate the effect of preterm gestational age (GA) on neonatal outcomes of gastroschisis and to compare the neonatal outcomes after spontaneous labor versus iatrogenic delivery both in the preterm and early term gestational periods. A retrospective study of prenatally diagnosed gastroschisis cases born at Loma Linda University Medical Center and Lucile Packard Children’s Hospital (Loma Linda, CA) between January 2009 and October 2016. A total of 194 prenatally diagnosed gastroschisis cases were identified and included in the analysis. We compared infants delivered <37 0/7 to those ≥37 0/7 weeks’ gestation. Adverse neonatal outcome was defined as any of: sepsis, short bowel syndrome, prolonged ventilation, or death. Prolonged length of stay (LOS) was defined as ≥75th percentile value. Outcomes following spontaneous versus iatrogenic delivery were compared. Analyses were performed using chi-squared test or Fisher’s exact test for categorical variables, and Student’s t-test or Wilcoxon’s rank-sum test for continuous variables. One hundred and six neonates were born <37 weeks and 88 at ≥37 weeks. Adverse outcome was statistically similar among those born <37 weeks compared to ≥37 weeks (48 versus 34%, p = .07). Prolonged LOS was more frequent among neonates delivered <37 weeks (p = .03). Among neonates born <37 weeks, bowel atresia was more frequent in those with spontaneous versus iatrogenic delivery (p = .04). There was no significant difference in the adverse neonatal composite outcome between those with spontaneous preterm labor versus planned iatrogenic delivery at <37 weeks (n = 30 (58%) versus n = 21 (39%), p = .08). Neonates with gastroschisis delivered <37 weeks had prolonged LOS whereas the rate of adverse neonatal outcomes was similar between those delivered preterm versus term. Neonates born after spontaneous preterm labor had a higher rate of bowel atresia compared to those born after planned iatrogenic preterm delivery.
Feeling of Relative Deprivation as a Driver for Higher Agricultural Subsidies
Creators: name: Poczta_Wajda, Agnieszka
name: Poczta_Wajda, Agnieszka
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Political Economy
subject: agricultural policy
subject: support for farmers
subject: relative deprivation
subject: political economy

description: Because people tend to compare themselves with others from their own surroundings, even a person rich in absolute terms can feel poor in relative terms, if people from their reference group are richer. This phenomenon is called relative deprivation. Farmers in developed economies claim to be poor, because they compare themselves not with farmers from poor economies, but rather with other members of their own society who work outside of agriculture and whose incomes are usually higher. Feeling relatively deprived, farmers in developed economies demand stronger financial support and act intensively to convince policymakers to support them. The main aim of this paper is to analyze the relation between relative deprivation of farmers and support for farmers in countries with different development levels. Results of this study prove that levels of support for farmers are positively related with the average level of relative deprivation of farmers dependent on the size of farmer groups. Hence the idea of relative deprivation might provide additional political explanation of different levels of support for farmers in countries with different development levels.
Abundant quadrupolar or nematic phases driven by the Heisenberg interactions in a spin-1 dimer system forming a bilayer
Creators: name: Tanaka, Katsuhiro
name: Hotta, Chisa
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We explore several classes of quadrupolar ordering in a system of antiferromagnetically coupled quantum spin-1 dimers, which are stacked in the triangular lattice geometry forming a bilayer. Low-energy properties of this model is described by an $\mathcal{S}=1$ hard-core bosonic degrees of freedom defined on each dimer-bond, where the singlet and triplet states of the dimerized spins are interpreted as the vacuum and the occupancy of boson, respectively. The number of bosons per dimer and the magnetic and density fluctuations of bosons are controlled by the inter-dimer Heisenberg interactions. In a solid phase where each dimer hosts one boson and the inter-dimer interaction is weak, a conventional spin nematic phase is realized by the pair-fluctuation of bosons. Larger inter-dimer interaction favors Bose Einstein condensates (BEC) carrying quadrupolar moments. Among them, we find one exotic phase where the quadrupoles develop a spatially modulated structure on the top of a uniform BEC, interpreted in the original dimerized spin-1 model as coexistent $p$-type nematic and 120$^\circ$-magnetic correlations. This may explain an intriguing nonmagnetic phase found in Ba$_{3}$ZnRu$_{2}$O$_{9}$.
description: 16 pages, 12 figures, manuscript is updated, 3 figures are added
Additional file 1 of Understanding low-value care and associated de-implementation processes: a qualitative study of Choosing Wisely Interventions across Canadian hospitals
Creators: name: Parker, Gillian
name: Kastner, Monika
name: Born, Karen
name: Shahid, Nida
name: Berta, Whitney
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. SRQR Checklist.
Correlations Between Fragmentation of Farms in the Republic of Moldova and its Impact on Farm Incomes Compared to Poland and Romania
Creators: name: Popa, Daniela Grigore
name: Dinu, Toma Adrian
name: Popa, Daniela Grigore
name: Dinu, Toma Adrian
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: International Relations/Trade
subject: Land Economics/Use
subject: Productivity Analysis
subject: land fragmentation
subject: concentration index
subject: land productivity
subject: European model of small farms
subject: farm management
subject: the role of small farm
subject: Moldova
subject: Poland
subject: Romania

description: The paper presents selected problems of farm management in terms of fragmented agriculture. The problem of land fragmentation was exemplified in these three countries of Central and Eastern Europe. The main purpose of the study was to compare the effectiveness of selected indicators of agricultural production in the three selected countries. For the analysis, the data on the concentration indexes was selected from: Lorenz concentration coefficient, the Gini index, and territorial concentration coefficient (Gini C and Stuck formula). In selected countries, there are a large number of small and very small farms. They represent the majority of farms managed by private owners. To a large extent, they are called semi-subsistence farms or social farms. Some of them provide part of their products on the market. Small farms are part of the so-called European Model of Agriculture – a model that consists of small family farms. It is difficult to indicate a correct definition of “small farm”, as it may be defined differently depending on the region or country. In the EU, small farms occupy a dominant position, being a constant subject of debates and policy. The authors of the article stressed the need for strengthening the small farm position, for example by enlarging their acreage or by initiating horizontal or vertical cooperation in a way that shall not impair the role of small farms. They are important in biodiversity protection, preserving the rural landscape, as well as maintaining local tradition, culture and heritage.
An XMCD study of magnetism and valence state in iron-substituted strontium titanate
Creators: name: Tang, Astera S.
name: Pelliciari, Jonathan
name: Song, Qi
name: Song, Qian
name: Ning, Shuai
name: Freeland, John W.
name: Comin, Riccardo
name: Ross, Caroline A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Room temperature ferromagnetism was characterized for thin films of SrTi$_{0.6}$Fe$_{0.4}$O$_{3-δ}$ grown by pulsed laser deposition on SrTiO$_{3}$ and Si substrates under different oxygen pressures and after annealing under oxygen and vacuum conditions. X-ray magnetic circular dichroism demonstrated that the magnetization originated from Fe$^{2+}$ cations, whereas Fe$^{3+}$ and Ti$^{4+}$ did not contribute. Films with the highest magnetic moment (0.8 μB per Fe) had the highest measured Fe$^{2+}$:Fe${^3+}$ ratio of 0.1 corresponding to the largest concentration of oxygen vacancies (δ = 0.19). Post-growth annealing treatments under oxidizing and reducing conditions demonstrated quenching and partial recovery of magnetism respectively, and a change in Fe valence states. The study elucidates the microscopic origin of magnetism in highly Fe-substituted SrTi$_{1-x}$Fe$_x$O$_{3-δ}$ perovskite oxides and demonstrates that the magnetic moment, which correlates with the relative content of Fe$^{2+}$ and Fe$^{3+}$, can be controlled via the oxygen content, either during growth or by post-growth annealing.
The Potential and Significance of Urban Agriculture on the Basis of the Ruhr Metropolis and the Upper Silesian Metropolis
Creators: name: Sroka, Wojciech
name: Pölling, Bernd
name: Sroka, Wojciech
name: Pölling, Bernd
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: International Relations/Trade
subject: Production Economics
subject: urban agriculture
subject: production potential
subject: Ruhr Metropolis
subject: Upper Silesian Metropolis

description: The paper attempts to evaluate the potential and importance of agriculture in the two largest (post)industrial metropolitan areas of Europe. It has been demonstrated that urban agriculture constitutes an important spatial component of studied urban organisms, as almost 40% of these consist of agricultural land. Analysis of chosen characteristics of agriculture in the researched metropolitan areas explicitly shows that their agricultural potential is comparable to the overall regions where they are located. This mainly concerns the average size of farms, the employment ratio and the intensity of both animal and plant production. The studies also led to the conclusion that, in spite of very similar natural environments, agriculture in the Ruhr Metropolis is characterized by significantly higher production potential than agriculture in the Upper Silesian Metropolis.
Spin-phase interference, coherent superposition, and quantum tunneling at excited levels in nano-antiferromagnets
Creators: name: Lu, Rong
name: Zhu, Jia-Lin
name: Zhou, Yi
name: Gu, Bing-Lin
Publisher: name: arXiv
Year: 2001
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The spin-phase interference effects are studied analytically in resonant quantum tunneling of the Néel vector between degenerate excited levels in nanometer-scale single-domain antiferromagnets in the absence of an external magnetic field. We consider a model for mesoscopic antiferromagnets with uncompensated excess spins for the more general structure of magnetic anisotropy, such as biaxial, trigonal, tetragonal and hexagonal crystal symmetry. This study provides a nontrivial generalization of the Kramers degeneracy for double-well system to coherently spin tunneling at ground states as well as low-lying excited states in AFM system with $m$-fold rotational symmetry around the $\hat{z}$ axis. The energy level spectrum and the thermodynamic properties of magnetic tunneling states are found to depend significantly on the parity of the excess spins at sufficiently low temperatures. Possible relevance to experiments is also discussed.
description: 22 pages, no figure, accepted for publication in PRB
Additional file 2 of Understanding low-value care and associated de-implementation processes: a qualitative study of Choosing Wisely Interventions across Canadian hospitals
Creators: name: Parker, Gillian
name: Kastner, Monika
name: Born, Karen
name: Shahid, Nida
name: Berta, Whitney
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2. Interview Guide.
MOESM3 of Infrared spectroscopy coupled to cloud-based data management as a tool to diagnose malaria: a pilot study in a malaria-endemic country
Creators: name: Heraud, Philip
name: Patutong Chatchawal
name: Molin Wongwattanakul
name: Patcharaporn Tippayawat
name: Doerig, Christian
name: Patcharee Jearanaikoon
name: Perez-Guaita, David
name: Bayden Wood
Publisher: name: figshare
Year: 2019
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Computational Biology

description: Additional file 3: Text S2. Baseline demographic and clinical characteristics of participant.
Additional file 6 of Impact of age and mean intracranial pressure on the morphology of intracranial pressure waveform and its association with mortality in traumatic brain injury
Creators: name: Kasprowicz, Magdalena
name: Mataczyński, Cyprian
name: Uryga, Agnieszka
name: Pelah, Adam I.
name: Schmidt, Eric
name: Czosnyka, Marek
name: Kazimierska, Agnieszka
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified

description: Additional file6 (SVG 17 KB)
The overdensities of galaxy environments as a function of luminosity and color
Creators: name: Hogg, David W.
name: Blanton, Michael R.
name: Eisenstein, Daniel J.
name: Gunn, James E.
name: Schlegel, David J.
name: Zehavi, Idit
name: Bahcall, Neta A.
name: Brinkmann, Jon
name: Csabai, Istvan
name: Schneider, Donald P.
name: Weinberg, David H.
name: York, Donald G.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the mean environments of galaxies in the Sloan Digital Sky Survey as a function of rest-frame luminosity and color. Overdensities in galaxy number are estimated in $8 h^{-1} \mathrm{Mpc}$ and $1 h^{-1} \mathrm{Mpc}$ spheres centered on $125,000$ galaxies taken from the SDSS spectroscopic sample. We find that, at constant color, overdensity is independent of luminosity for galaxies with the blue colors of spirals. This suggests that, at fixed star-formation history, spiral-galaxy mass is a very weak function of environment. Overdensity does depend on luminosity for galaxies with the red colors of early types; both low-luminosity and high-luminosity red galaxies are found to be in highly overdense regions.
description: submitted to ApJL
Spin current as a probe of the $\mathbb{Z}_2$-vortex topological transition in the classical Heisenberg antiferromagnet on the triangular lattice
Creators: name: Aoyama, K.
name: Kawamura, H.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We have theoretically investigated transport properties of the classical Heisenberg antiferromagnet on the triangular lattice in which a binding-unbinding topological transition of $\mathbb{Z}_2$ vortices is predicted to occur at a finite temperature $T_v$. It is shown by means of the hybrid Monte-Carlo and spin-dynamics simulations that the longitudinal spin-current conductivity exhibits a divergence at $T_v$, while the thermal conductivity only shows a monotonic temperature dependence with no clear anomaly at $T_v$. The significant enhancement of the spin-current conductivity is found to be due to the rapid growth of the spin-current-relaxation time toward $T_v$, which can be understood as a manifestation of the topological nature of the free $\mathbb{Z}_2$ vortex whose lifetime gets longer toward $T_v$. The result suggests that the spin-current measurement is a promising probe to detect the $\mathbb{Z}_2$-vortex topological transition which has remained elusive in experiments.
description: 6 pages, 3 figures, Supplemental Material(9 pages, 2 figures)
Determination of Solar Neutrino Oscillation Parameters using 1496 Days of Super-Kamiokande-I Data
Creators: name: Kamiokande Collaboration
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A number of different fits to solar neutrino mixing and mass square difference were performed using 1496 days of Super-Kamiokande-I's solar neutrino data. These data select two allowed areas at large neutrino mixing when combined with either the solar $^8$B flux prediction of the standard solar model or the SNO interaction rate measurements. A global fit combining SK data with the solar neutrino interaction rates measured by Homestake, SNO, Gallex/GNO and SAGE prefers a single allowed area, the Large Mixing Angle solution, at the 98.9% confidence level. The mass square difference $Δm^2$ between the two mass eigenstates ranges from about 3 to $19\times10^{-5}$eV$^2$, while the mixing angle $θ$ is in the range of $\tan^2θ\approx$0.25--0.65.
description: 10 Pages, 4 figures, submitted to Physics Letters B
Developing an Integrated Methodology for Estimating Economic Efficiency of Production in Agricultural Enterprises Republic of Moldova
Creators: name: Timofti, Elena
name: Timofti, Elena
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: Production Economics
subject: Productivity Analysis
subject: economic efficiency
subject: full indicator
subject: methodology of assessment
subject: system of indicators
subject: the optimal frontier (benchmark)
subject: Moldova

description: This paper presents an analysis to estimate the economic efficiency of agricultural products and global production in agricultural enterprises in Moldova. It was determined by using a system of partial indicators of economic efficiency dynamics from 2005-2012. Along with traditional indicators, a calculation methodology developed by a synthetic indicator for (full) efficiency was used, taking into account basic indicators of production and sales. The recommended methodology enables: trace- back to each farm unit for economic efficiency compared with border hierarchy of optimal studied (standard) levels of identification, with results by influence; determining reserves to increase economic efficiency etc. The following methods are based on economic statistics research: monographic method, method table, DEA (Data Envelopment Analysis). In the research the author used data from specialized forms of agricultural enterprises from the Statistical Yearbook (NBS).
Perovskite-molecule composite thin films for efficient and stable light-emitting diodes
Creators: name: Wang, Heyong
name: Kosasih, Felix Utama
name: Yu, Hongling
name: Zheng, Guanhaojie
name: Zhang, Jiangbin
name: Pozina, Galia
name: Liu, Yang
name: Bao, Chunxiong
name: Hu, Zhangjun
name: Liu, Xianjie
name: Kobera, Libor
name: Abbrent, Sabina
name: Brus, Jiri
name: Jin, Yizheng
name: Fahlman, Mats
name: Friend, Richard H.
name: Ducati, Caterina
name: Liu, Xiao-Ke
name: Gao, Feng
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Article
/639/301/1005
/639/766/25
/147/135
/147/143
/132
/140/131
/140/146
/140/125
/142
/145
article

description: Abstract: Although perovskite light-emitting diodes (PeLEDs) have recently experienced significant progress, there are only scattered reports of PeLEDs with both high efficiency and long operational stability, calling for additional strategies to address this challenge. Here, we develop perovskite-molecule composite thin films for efficient and stable PeLEDs. The perovskite-molecule composite thin films consist of in-situ formed high-quality perovskite nanocrystals embedded in the electron-transport molecular matrix, which controls nucleation process of perovskites, leading to PeLEDs with a peak external quantum efficiency of 17.3% and half-lifetime of approximately 100 h. In addition, we find that the device degradation mechanism at high driving voltages is different from that at low driving voltages. This work provides an effective strategy and deep understanding for achieving efficient and stable PeLEDs from both material and device perspectives.
Predictability of large future changes in a competitive evolving population
Creators: name: Lamper, D.
name: Howison, S.
name: Johnson, N. F.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantitative Biology (q-bio)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The dynamical evolution of many economic, sociological, biological and physical systems tends to be dominated by a relatively small number of unexpected, large changes (`extreme events'). We study the large, internal changes produced in a generic multi-agent population competing for a limited resource, and find that the level of predictability actually increases prior to a large change. These large changes hence arise as a predictable consequence of information encoded in the system's global state.
description: 10 pages, 3 figures
MOESM4 of Infrared spectroscopy coupled to cloud-based data management as a tool to diagnose malaria: a pilot study in a malaria-endemic country
Creators: name: Heraud, Philip
name: Patutong Chatchawal
name: Molin Wongwattanakul
name: Patcharaporn Tippayawat
name: Doerig, Christian
name: Patcharee Jearanaikoon
name: Perez-Guaita, David
name: Bayden Wood
Publisher: name: figshare
Year: 2019
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 4: Table S1. Primers and probes of 18s rRNA malaria parasites according to Perandin et al. [17]. Table S2. Parameters of the QCs independents of the model used on this study. NOTE. SD: Standard deviation. Table S3. summarizing the comparison of malaria diagnosis by light microscopy and serological RDT against the gold standard real time-PCR analysis (a). Diagnostic sensitivity and specificity of RDT (b) and light microscopy (c) were calculated.
Placental complications in subsequent pregnancies after prior cesarean section performed in the first versus second stage of labor
Creators: name: Rotem, Reut
name: Bitensky, Shira
name: Pariente, Gali
name: Sergienko, Ruslan
name: Misgav Rottenstreich
name: Weintraub, Adi Y.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Sociology
subject: FOS: Sociology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: To examine whether prior cesarean delivery (CD) in the first stage of labor (non-progressive labor in the first stage – NPL1), when compared with CD in the second stage of labor (non-progressive labor in the second stage – NPL2), is associated with different rates of third stage placental complications in the subsequent delivery. A retrospective cohort study, of all deliveries following a CD due to NLP1 or NLP2 that occurred between the years 1988 and 2013, was undertaken. Multiple gestation pregnancies, known uterine malformations or uterine fibroids were excluded. Rates of third stage complications (retained placenta, adherent/increta/percreta placenta, manual removal of the placenta) were compared between the groups. Univariate analysis was followed by multivariate analysis. During the study period, there were 3828 subsequent deliveries of parturients who were operated due to NPL1 and NPL2 (72.91 and 27.09%, respectively). Rates of manual removal of the placenta as well as adherent placenta were significantly higher among parturients following CD due to NPL2 (28.4 versus 24.0%, p = .04, 1.2 versus 0.4% p Prior CD due to NPL2 as opposed to NPL1 is independently associated with adherent placenta in the subsequent delivery. A higher index of suspicion may be needed when evaluating these women during pregnancy as well as during management of the delivery.