cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Empirical Study on Online Political Participation of Young Migrant Workers
Creators: name: KANG, Yan
name: FANG, Jianbin
name: KANG, Yan
name: FANG, Jianbin
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Young migrant workers
subject: Online political participation
subject: Empirical study

description: Popularization of network technology and development of online political participation expand approaches of young migrant workers participating in political affairs and raise interest and ability of young migrant workers participating in political affairs. Through questionnaire of young migrant workers participating in political affairs in Xi’an, Xianyang and Yangling, the survey team found that political participation of young migrant workers takes on following characteristics: active and positive online political concern, passive and profit seeking online political expression, and claim of right. Besides, online political participation of young migrant workers is related to region, cultural level, and occupation, but not related with their political status. Based on this survey, it came up with recommendations: governments at all levels should strengthen network information construction, carry out theoretical and practical training for online political participation of young migrant workers, establish online political participation government feedback mechanism and enhance party organization construction, and bring into play the lead model role of party members of young migrant workers in online political participation.
Effect of Phase Shift in Shape Changing Collision of Solitons in Coupled Nonlinear Schroedinger Equations
Creators: name: Kanna, T.
name: Lakshmanan, M.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: Soliton interactions in systems modelled by coupled nonlinear Schroedinger (CNLS) equations and encountered in phenomena such as wave propagation in optical fibers and photorefractive media possess unusual features : shape changing intensity redistributions, amplitude dependent phase shifts and relative separation distances. We demonstrate these properties in the case of integrable 2-CNLS equations. As a simple example, we consider the stationary two-soliton solution which is equivalent to the so-called partially coherent soliton (PCS) solution discussed much in the recent literature.
description: 11 pages, revtex4,Two eps figures. European Journal of Physics B (to appear)
Analysis on the Employment of Landless Farmers during the Reconstruction of Urban Village: A Case Study of S Village in Shaanxi Province
Creators: name: WANG, Hua
name: XIE, Yanjie
name: WANG, Hua
name: XIE, Yanjie
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Landless farmers
subject: Employment
subject: Urban village

description: The re-employment of landless farmers in reconstruction of urban village is an important way to solve the problems concerning farmers. In S Village of Shaanxi Province, the landless farmers are facing the employment problems such as low re-employment rate and quality, lack of employment competitiveness, and weak employment willingness. This paper analyzes the main factors influencing the employment of landless farmers in this urban village such as local government's lack of overall design on the employment of landless farmers, landless farmers' lack of long-term employment concept, poor employment conditions, and lack of vocational education in rural areas. Finally some recommendations are set forth to enhance the employment of landless farmers in S Village: strengthening the institutional support for the employment of landless farmers; perfecting the fund guarantee for the employment of landless farmers; actively expanding the employment channels; enhancing the employability of landless farmers.
Supplementary material from Fully automated image-based estimation of postural point-features in children with cerebral palsy using deep learning
Creators: name: Cunningham, Ryan
name: Sánchez, María B.
name: Butler, Penelope B.
name: Southgate, Matthew J.
name: Loram, Ian D.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: 110601 Biomechanics
subject: FOS: Health sciences
subject: 90399 Biomedical Engineering not elsewhere classified
subject: FOS: Medical engineering

description: Contains figures and tables expanding on the results within the paper in more detail.
Massive molecular outflows
Creators: name: Beuther, H.
name: Schilke, P.
name: Menten, K. M.
name: Walmsley, C. M.
name: Sridharan, T. K.
name: Wyrowski, F.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Well established correlations of low-mass flows show a continuity in the high-mass regime, and mean accretion rates for L>1000 Lsun are dM/dt~10^(-4) Msun/yr. We also present a tight correlation between outflow masses and core masses, which implies that the accretion rate is to first order a linear function of the core mass. All those results support the idea that similar physical processes drive outflows of all masses.
description: 2 pages, 2 ps-figures, in: Proceedings of The earliest phases of massive star birth
The New Changes in Rural Labor Transfer Mode under New Urbanization: Based on the Survey of 10 Villages in Guizhou Province
Creators: name: ZHANG, Zhuping
name: WU, Zongjian
name: YUAN, Zhongyong
name: SUN, Wen
name: ZHANG, Zhuping
name: WU, Zongjian
name: YUAN, Zhongyong
name: SUN, Wen
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Rural areas
subject: Labor transfer
subject: Mode
subject: Guizhou Province

description: With the full-speed development of economy, the new urbanization has been accelerated in Guizhou Province in order to make the people reach a well-off standard of living by 2020. From the whole society, the key point is the development of the rural economy, and the development of the rural economy depends on the economic development of rural households. The income from rural labor force transfer has become the main income source and accounts for more than half of rural household income, which will play a major role in survival and development of rural households.
Theory and phase-field simulations on electrical control of spin cycloids in a multiferroic
Creators: name: Xue, Fei
name: Yang, Tiannan
name: Chen, Long-Qing
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Cycloidal spin orders are common in multiferroics. One of the prototypical examples is BiFeO3 (BFO) which shows a large polarization and a cycloidal antiferromagnetic order at room temperature. Here we employ Landau theory and phase-field simulations to analyze the coupled switching dynamics of polarization and cycloidal antiferromagnetic orders in BFO. We are able to identify 14 types of transitional spin structures between two cycloids and 9 electric-field-induced spin switching paths. We demonstrate the electric-field-induced rotation of wave vectors of the cycloidal spins and discover 2 types of cycloidal spin switching dynamics: fast local spin flips and slow rotation of wave vectors. Also, we construct road maps to achieve the switching between any two spin cycloids through multi-step applications of electric fields. The work provides a theoretical framework for the phenomenological description of spin cycloids and a fundamental understanding of the switching mechanisms to achieve electrical control of magnetic orders.
description: 23 pages, 8 figures, with supplementary materials
title: Zur palynologischen Aussagekraft einiger Proben aus der Bohrung Bayerhof – eine Pilotstudie
Creators: name: Sachse, Markus
name: Hofmann, Christa-Charlotte
Publisher: name: SNSB - Bayerische Staatssammlung für Paläontologie und Geologie
Year: 2021

description: Das aus dem obersten Oligozän bzw. untersten Miozän stammende Bayerhofer Maar ist hinsichtlich seiner Sedimentationsgeschichte bisher kaum untersucht. Im Rahmen dieser Studie konnten in fünf Proben aus dem Bohrkern etwa 65 Taxa (Sporen, Pollen, Grünalgen) mittels Licht- und Rasterelektronenmikroskop identifiziert werden. Ein Vergleich mit anderen Fossilfundstellen zeigt, dass dies dem er-wartbaren Wert entspricht – unter Berücksichtigung von Probenmenge und Ablagerungsbedingungen für diesen Maarsee, der insgesamt wahrscheinlich bis zu 150 Taxa enthalten dürfte. Eine vorläufige Rekonstruktion der Pflanzenvergesellschaftung zeigt die zonale Vegetati-on eines warm-gemäßigten bzw. subtropischen Waldes bestehend aus immergrünen und sommergrünen Gewächsen, die den Kraterwall besiedelten. Auch Elemente der umliegenden Bergwälder des Fichtelgebirges und Oberpfälzer Waldes finden sich in den Ablagerungen. Entlang eines vermutlich in den See einmündenden Fließgewässers entwickelte sich ein Auenwald. In der Endphase des Sees bildeten sich Sumpf- und Moorvergesellschaftungen aus. Aufgrund der geringen Probenzahl und grundsätzlicher noch bestehender Unsicher-heiten der bestehenden pollenstratigraphischen Zonierungen ist eine exakte Einstufung aus methodischen Gründen (noch) nicht möglich. Dennoch kann das mittels K/Ar-Datierung ermittelte Alter (23,3 bis 21,7 Millionen Jahre) bestätigt werden, da es sich um eine typische Vergesellschaftung des entsprechenden Zeitraumes handelt. Da die Bohrung die komplette Maargeschichte von der initialen Eruptions-phase bis zur Verlandung enthält, wäre bei entsprechend engerer Beprobung und multidisziplinärem Forschungsansatz ein sicherlich sehr viel detaillierteres Bild zur Klima- und Vegetationsgeschichte sowie stratigraphischen Gliederung des fraglichen Zeitraumes möglich. Denn hierfür bilden Maarablagerungen i.d.R. ideale Voraussetzungen.
Evaluation and risk assessment of heavy metals in surface water collected along the Isipingo river, KwaZulu-Natal, South Africa
Creators: name: Adeyinka, Gbadebo Clement
name: Bakare, Babatunde Femi
name: Iwarere, Samuel Ayodele
Publisher: name: Mangosuthu University of Technology (MUT)
Year: 2022
Subjects: subject: 90403 Chemical Engineering Design
subject: FOS: Chemical engineering

description: In this study, the pollution levels, sources, and ecological risks associated with five selected heavy metals (chromium, copper, iron, lead, and zinc)were evaluated in surface water, soil, and sedi?ment systems along the Isipingo River, KwaZulu-Natal, South Africa. The surface water, soil and sediment samples collected along the river, were preserved, transported, and stored followed the stan?dard procedures. Soil and sediment samples were digested for heavy metal determination using a microwave digestion system. The digested samples were quantitatively analysed using an induc?tively coupled plasma optical emission spectrometer (ICP-OES). The results demonstrate that majority of the targeted heavy metals were found below the detection limits in surface water except for iron (Fe), which was found within the concentration range of 9.54 to 46.76 µg/L. Lead was found below the detection limit in water, soil, and sediment samples, while other heavy metals were within the range not detected(ND)to 0.222 µg/kg dry weight and 0.212 µg/kg dry weight in soil and sediment respectively. The ecological risk assessment of the studied metals in soil and sediment systems from this riversignified that water from this river had less probable potential adverse effects on both animals and humans as well as benthic organisms.
Thermal Stabilisation of Superconducting Sigma Strings and their Drum Vortons
Creators: name: Carter, Brandon
name: Brandenberger, Robert H.
name: Davis, Anne-Christine
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss various issues related to stabilized embedded strings in a thermal background. In particular, we demonstrate that such strings will generically become superconducting at moderately low temperatures, thus enhancing their stability. We then present a new class of defects - drum vortons - which arise when a small symmetry breaking term is added to the potential. We display these points within the context of the O(4) sigma model, relevant for hadrodynamics below the QCD scale. This model admits `embedded defects' (topological defect configurations of a simpler - in this case O(2) symmetric - model obtained by imposing an embedding constraint) that are unstable in the full model at zero temperature, but that can be stabilised (by electromagnetic coupling to photons) in a thermal gas at moderately high termperatures. It is shown here that below the embedded defect stabilisation threshold, there will still be stabilized cosmic string defects. However, they will not be of the symmetric embedded vortex type, but of an `asymmetric' vortex type, and are automatically superconducting. In the presence of weak symmetry breaking terms, such as arise naturally when using the O(4) model for hadrodynamics, the strings become the boundary of a new kind of cosmic sigma membrane, with tension given by the pion mass. The string current would then make it possible for a loop to attain a (classically) stable equilibrium state that differs from an ``ordinary'' vorton state by the presence of a sigma membrane stretched across it in a drum like configuration. Such defects will however be entirely destabilised if the symmetry breaking is too strong, as is found to be the case -- due to the rather large value of the pion mass -- in the hadronic application of the O(4) sigma model.
description: 16 pages, 2 figures two references added
Effects of PU, USG and NPK briquette on nitrogen use efficiency and yield of BR22 rice under reduced water condition
Creators: name: Naznin, A.
name: Afroz, H.
name: Hoque, T.S.
name: Mian, M.H.
name: Naznin, A.
name: Afroz, H.
name: Hoque, T.S.
name: Mian, M.H.
Publisher: name: Unknown
Year: 2013
Subjects: subject: Crop Production/Industries
subject: Prilled urea
subject: Urea super granule
subject: NPK briquette
subject: BR22 rice
subject: Nitrogen use efficiency

description: An experiment was conducted at the Soil Science Field Laboratory of Bangladesh Agricultural University, Mymensingh during the aman season of 2012 to investigate the effects of prilled urea (PU), urea super granule (USG) and NPK briquette on NH4- N concentration in field water, yield and nitrogen (N) use efficiency (NUE) of BR22 rice under reduced water conditions. The experiment was laid out in a randomized complete block design with three replications. There were altogether eight treatment combinations viz. T1: Control (No N fertilizer), T2: 52 kg N ha-1 from USG, T3: 104 kg N ha-1 from USG, T4: 78 kg N ha-1 from PU, T5: 120 kg N ha-1 from PU, T6: 51 kg N ha-1 from NPK briquette, T7: 78 kg N ha-1 from USG and T8: 78 kg N ha-1 from NPK briquette. Water samples were collected from rice field for seven consecutive days after deep placement of USG and the first split application of PU and the samples were analyzed for NH4-N. The Highest concentration of NH4-N in water was observed at the second day of PU application followed by gradual decrease with time. The yield contributing characters like plant height, panicle length, number of effective tillers hill-1 and grains panicle-1 were significantly influenced by different treatments. The highest grain yield of 3.93 t ha-1 was recorded from 104 kg N ha-1 as USG (T3) and the lowest value of 2.12 t ha-1 was obtained from control. The N use efficiency was increased when the N was applied as USG. The overall results revealed that application of USG and NPK briquette may be practised for obtaining better yields in addition to increasing the efficiency of N fertilizer.
The focusing logarithmic Schrödinger equation: analysis of breathers and nonlinear superposition
Creators: name: Ferriere, Guillaume
Publisher: name: arXiv
Year: 2019
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: Primary: 35Q55, 35B10, 35B15, 35B40, Secondary: 34C25, 34C27

description: We consider the logarithmic Schrödinger equation in the focusing regime. For this equation, Gaussian initial data remains Gaussian. In particular, the Gausson-a time-independent Gaussian function-is an orbitally stable solution. In the general case in dimension $d = 1$, the solution with Gaussian initial data is periodic, and we compute some approximations of the period in the case of small and large oscillations, showing that the period can be as large as wanted for the latter. The main result of this article is a principle of nonlinear superposition: starting from an initial data made of the sum of several standing Gaussian functions far from each other, the solution remains close (in $L^2$) to the sum of the corresponding Gaussian solutions for a long time, in square of the distance between the Gaussian functions.
Lignan and phenolic glycosides from Viburnum betulifolium fruits and their α‑amylase and α-glucosidase inhibitory activities
Creators: name: Tang, Yi-Yuan
name: Chen, Jia
name: Zhou, Hong-Juan
name: Ji, Wei
name: Shao, Jian-Hua
name: Zhang, Feng-Min
name: Zhao, Chun-Chao
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Space Science
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Virology

description: The phytochemical investigation on the methanol extract of Viburnum betulifolium fruits resulted in the isolation and identification of two new lignan constituents (1 and 2) and seven known phenolic glycosides (3–9). The structures of new isolates, including their absolute configurations were elucidated by extensive spectroscopic analyses (1H and 13C NMR, HSQC, HMBC, HRESIMS, and ECD) and chemical methods. In the in vitro enzyme assays, compounds 1, 2, 6, and 8 showed potential α‑amylase and α-glucosidase inhibitory activities. Among them, compound 1 exhibited stronger inhibitory effects towards α-amylase and α-glucosidase with the IC50 values of 12.68 and 15.17 μM, respectively, than those of the positive control acarbose (IC50, 29.19 and 18.15 μM, respectively). In addition, the molecular docking analyses of compound 1 with strongest inhibition against the target enzymes were also performed.
Intersecting Branes, Defect Conformal Field Theories and Tensionless Strings
Creators: name: Constable, Neil R.
name: Erdmenger, Johanna
name: Guralnik, Zachary
name: Kirsch, Ingo
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The defect conformal field theory describing intersecting D3-branes at a C^2/Z_k orbifold is used to (de)construct the theory of intersecting M5-branes, as well as M5-branes wrapping the holomorphic curve xy=c. The possibility of a 't Hooft anomaly due to tensionless strings at the intersection is discussed. This note is based on a talk given by Zachary Guralnik at the 35th International Symposium Ahrenshoop on the Theory of Elementary Particles.
description: latex, one figure, 9pages. Talk given by Z.G. at the 35th International Symposium Ahrenshoop on the Theory of Elementary Particles
Tomato seeds pretreated with Antifreeze protein type I (AFP I) promotes the germination under cold stress by regulating the genes involved in germination process
Creators: name: Swum Yi Kyu
name: Aung Htay Naing
name: Phyo Phyo Win Pe
name: Park, Kyeung Il
name: Kim, Chang Kil
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology

description: This study was conducted to investigate the involvement of antifreeze proteins (AFPs; type I and III) in the germination mechanism of tomato seeds under low temperature stress. Germination of the seeds grown at a room temperature (25°C) was observed on 5 days after sowing (DAS), while all seeds exposed to a low temperature started to germinate at 16 days after sowing (DAS). However, in comparison with control seeds (0 µg/l), seeds treated with AFP I (100, 300, or 500 µg/l) germinated earlier and at a higher percentage until 20 DAS, and seeds treated with 100 µg/l AFP I showed the highest percentage of germination. Surprisingly, AFP III did not significantly increase germination, and the rate was lower among 500 µg/l AFP III-treated seeds compared with control seeds (0 µg/l). The transcription levels of the plasma membrane-associated H+-ATPase gene and antioxidant-related superoxide dismutase (SOD) and catalase 1 (CAT1) genes were analyzed, and the transcription levels of the genes in the seeds grown at 25°C were relatively low. For low temperature-treated seeds, H+-ATPase in control seeds (0 µg/l) was higher compared with that in AFP I-treated seeds and was lower compared with that in AFP III-treated seeds. The expression levels of the antioxidant-related genes (SOD and CAT1) were lower in AFP I-treated seeds than in control seeds (0 µg/l); however, they were higher in AFP III-treated seeds than in control seeds (0 µg/l). Overall, compared with AFP III, AFP I may potentially function as a cold-protective agent by modulating the genes associated with seed germination.
The Measurement, Monitoring and Evaluation Strategy
Creators: name: Alford, Andrew R.
name: Clark, Richard A.
name: Griffith, Garry R.
name: Alford, Andrew R.
name: Clark, Richard A.
name: Griffith, Garry R.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Farm Management
subject: Measurement
subject: monitoring
subject: evaluation
subject: KPIs

description: A critical component of the Continuous Improvement and Innovation (CI&I) process described in Paper 4 above is Performance Assessment - analysing and interpreting the results achieved, and not achieved, in relation to the focus and target outcomes. This is made easier if specific Key Performance Indicators (KPIs) are established during Action Design and monitored during Action Implementation. The target outcome for the Measurement, Monitoring and Evaluation (MME) Strategy is to design and implement effective and efficient MME mechanisms that will demonstrate improvements and innovations in individual beef businesses and supply chains and in the broader Australian beef industry.
The Reporting and Support Framework
Creators: name: Alford, Andrew R.
name: Purcell, Dougal
name: Clark, Richard A.
name: Griffith, Garry R.
name: Alford, Andrew R.
name: Purcell, Dougal
name: Clark, Richard A.
name: Griffith, Garry R.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Farm Management
subject: Measuring
subject: monitoring
subject: evaluation
subject: reporting
subject: support
subject: KPIs

description: The Reporting and Support Framework is an integral component of the Measuring, Monitoring and Evaluation (MME) strategy. This framework is designed to capture changes in practices, processes and outcomes in the CI&I partnerships and in beef businesses, partnerships, value chains and the broader Australian beef industry so as to provide support within the CI&I partnerships and to meet project and CRC reporting requirements. Because of the multiple users of the information, and the multiple environments in which it is expected to be used, the BPP reporting and support framework has been a difficult framework to develop. There have been several versions that have been adapted and improved over time, but we hope that it is now sufficiently flexible to capture real changes in practices, processes and outcomes.
title: Immigration of the genus Macrocephalites Spath and the Bathonian biostratigraphy of the Kachchh basin (Western India, South Tethys)
Creators: name: Jain, Sreepat
Publisher: name: SNSB - Bayerische Staatssammlung für Paläontologie und Geologie
Year: 2021

description: The Bathonian occurrences of Indonesian Macrocephalites from the Kachchh basin (Western India) (and correspondingly the immigration of the genus into the basin) is evaluated in context of improved biostratigraphy and new ammonite data vis-à-vis European and Submediterranean records. The Indonesian Middle Bathonian macrocephalitids [Macrocephalites bifurcatus transient intermedius (Spath) (M), M. bifurcatus transient cf. intermedius (Spath) (M), M. bifurcatus transient aff. bifurcatus Boehm (m) and M. cf. etheridgei Spath (m)], have largely been recorded from a single dome, Jumara (from the basal Yellow bed, bed A4), with additional singular occurrences of M. cf. etheridgei Spath (m) from the adjoining Nara and Jhura domes (Kachchh). In Jumara, the Indonesian macrocephalitids are associated with Micromphalites (Clydomphalites) clydocromphalus Arkell (M), Procerites (Gracilisphinctes) arkelli Collignon (M), P. (G.) intermedius Jain (m), P. hians (Waagen) (M), Wagnericeras sp. (m), Parapatoceras distans (Baugier and Sauzé) (M), Sivajiceras congener (Waagen) (M and m), Macrocephalites triangularis Spath (M and m), Epimorphoceras decorum (Waagen) (M), and Reineckeia sp. A and B (M). This fauna is correlated with the European early Middle Bathonian Progracilis Zone. Both Jumara and the adjoining Jara domes have also yielded characteristic Indonesian Late Bathonian macrocephalitids – M. cf. keeuwensis Boehm (M and m), M. keeuwensis var. aff. forma flexuosa Boehm (m) and M. cf. mantataranus Boehm (M). In light of improved high–resolution stratigraphy, the Kachchh Bathonian fauna is evaluated and an improved biostratigraphy of the basin is proposed.
Faddeev-Yakubovsky search for Lambda-Lambda hydrogen-4
Creators: name: Filikhin, I. N.
name: Gal, A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Evidence for particle stability of Lambda-Lambda hydrogen-4 (4LLH) has been suggested by the BNL-AGS E906 experiment. We report on Faddeev-Yakubovsky calculations for the four-body Lambda-Lambda-p-n system using Lambda-N interactions which reproduce the observed binding energy of Lambda hydrogen-3 (3LH) within a Faddeev calculation for the Lambda-p-n subsystem. No 4LLH bound state is found over a wide range of Lambda-Lambda interaction strengths, although the Faddeev equations for a three-body Lambda-Lambda-d model of 4LLH admit a 1+ bound state for as weak a Lambda-Lambda interaction strength as required to reproduce the binding energy of Lambda-Lambda Helium-6 (6LLHe).
description: 4 pages including 2 figures, PRL (in press)
Targets, Implementation Issues and Achievements to 2007/08
Creators: name: Parnell, Peter F.
name: Clark, Richard A.
name: Timms, Janice
name: Griffith, Garry R.
name: Hyland, Paul W.
name: Mulholland, Cynthia
name: Alford, Andrew R.
name: Parnell, Peter F.
name: Clark, Richard A.
name: Timms, Janice
name: Griffith, Garry R.
name: Hyland, Paul W.
name: Mulholland, Cynthia
name: Alford, Andrew R.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Farm Management
subject: Accelerated adoption
subject: continuous improvement and innovation
subject: beef industry
subject: profit
subject: productivity
subject: capacity
subject: partnership
subject: efficiency
subject: effectiveness

description: In the Beef CRC, Sustainable Beef Profit Partnership (BPP) teams meet regularly to measure their current performance, set targets for future productivity increases, and use a profitability framework to assess the potential impact of improvements, innovations and new technologies in their beef businesses. Their decisions and actions are based on the Continuous Improvement and Innovation (CI&I) process. Capacity building and partnership outcomes are also assessed, and the BPP teams are supported with appropriate tools and resources. In this paper the achievements of the project to date are assessed against the project targets and issues in implementation of the project are discussed.
Clustering dynamics of Lagrangian tracers in free-surface flows
Creators: name: Schumacher, Joerg
name: Eckhardt, Bruno
Publisher: name: arXiv
Year: 2002
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We study the formation of clusters of passive Lagrangian tracers in a non-smooth turbulent flow in a flat free-slip surface as a model for particle dynamics on free surfaces. Single particle and pair dispersion show different behavior for short and large times: on short times particles cluster exponentially rapidly until patches of the size of the divergence correlation length are depleted; on larger times the pair dispersion is dominated by almost ballistic hopping between clusters. We also find that the distribution of particle density is close to algebraic and can trace this back to the exponential distribution of the divergence field of the surface flow.
description: 5 pages, 5 Postscript figures
title: Die Sauzei-Zone (Mitteljura, Unter-Bajocium) im Gebiet des Hohenzollern (Schwäbische Alb, SW-Deutschland)
Creators: name: Dietze, Volker
name: Wannenmacher, Norbert
name: Schweiger, Günter
Publisher: name: SNSB - Bayerische Staatssammlung für Paläontologie und Geologie
Year: 2021

description: Die Sauzei-Zone im Gebiet der Zollernalb (SW-Deutschland) kann in drei Ammoniten-Faunenhorizonte gegliedert werden: (1) den dilatus-Horizont an der Basis der Sauzei-Zone, (2) den hier neu aufgestellten quenstedti-Horizont und (3) den bislang der basalen Humphriesianum-Zone zugerechneten carinodiscus- [vormals ohmerti-] Horizont. Sonninia ohmerti Dietze et al., 2008 wird nun als jüngeres sub-jektives Synonym von S. carinodiscus (Quenstedt, 1886) betrachtet. Die Ammonitenfaunen dieser drei Horizonte mit zahlreichen aus Süddeutschland bisher unbekannten Taxa werden detailliert beschrieben. Die Schichtenfolge wird mit denjenigen anderer Fundorte in Süddeutschland, Südengland und Frankreich korreliert.
description: The Sauzei Zone in the area around the Hohenzollern Castle (Swabian Alb, SW Germany) is subdivided into three ammonite faunal horizons: (1) the dilatus horizon at base; (2) the herein newly established quenstedti horizon; and (3) the carinodiscus [formerly ohmerti] horizon, previously attributed to the Humphriesianum Zone. Sonninia ohmerti Dietze et al., 2008 is regarded now as a junior subjective synonym of S. carinodiscus (Quenstedt, 1886). The ammonite faunas of these horizons yield numerous taxa previously not recorded for SW Germany and are described in detail. The stratigraphic succession is correlated with other sites in SW Germany, S England and France
Regeneration-enriched Markov processes with application to Monte Carlo
Creators: name: Wang, Andi Q.
name: Pollock, Murray
name: Roberts, Gareth O.
name: Steinsaltz, David
Publisher: name: arXiv
Year: 2019
Subjects: subject: Probability (math.PR)
subject: Methodology (stat.ME)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 60J40, 60J22 (Primary), 60J25, 65C05 (Secondary)

description: We study a class of Markov processes that combine local dynamics, arising from a fixed Markov process, with regenerations arising at a state-dependent rate. We give conditions under which such processes possess a given target distribution as their invariant measures, thus making them amenable for use within Monte Carlo methodologies. Since the regeneration mechanism can compensate the choice of local dynamics, while retaining the same invariant distribution, great flexibility can be achieved in selecting local dynamics, and the mathematical analysis is simplified. We give straightforward conditions for the process to possess a central limit theorem, and additional conditions for uniform ergodicity and for a coupling from the past construction to hold, enabling exact sampling from the invariant distribution. We further consider and analyse a natural approximation of the process which may arise in the practical simulation of some classes of continuous-time dynamics.
description: v3: 43 pages, 3 figures. Some clarifications added. Accepted version, to appear in Ann. Appl. Probab
Spooky action at a global distance: analysis of space-based entanglement distribution for the quantum internet
Creators: name: Khatri, Sumeet
name: Brady, Anthony J.
name: Desporte, Renée A.
name: Bart, Manon P.
name: Dowling, Jonathan P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recent experimental breakthroughs in satellite quantum communications have opened up the possibility of creating a global quantum internet using satellite links. This approach appears to be particularly viable in the near term, due to the lower attenuation of optical signals from satellite to ground, and due to the currently short coherence times of quantum memories. The latter prevents ground-based entanglement distribution using atmospheric or optical-fiber links at high rates over long distances. In this work, we propose a global-scale quantum internet consisting of a constellation of orbiting satellites that provides a continuous, on-demand entanglement distribution service to ground stations. The satellites can also function as untrusted nodes for the purpose of long-distance quantum-key distribution. We develop a technique for determining optimal satellite configurations with continuous coverage that balances both the total number of satellites and entanglement-distribution rates. Using this technique, we determine various optimal satellite configurations for a polar-orbit constellation, and we analyze the resulting satellite-to-ground loss and achievable entanglement-distribution rates for multiple ground station configurations. We also provide a comparison between these entanglement-distribution rates and the rates of ground-based quantum repeater schemes. Overall, our work provides the theoretical tools and the experimental guidance needed to make a satellite-based global quantum internet a reality.
description: 22 pages, 11 figures. Minor changes; close to the published version
Moist Shallow Water Response to Tropical Forcing: Initial Value Problems
Creators: name: Suhas, D. L.
name: Sukhatme, Jai
Publisher: name: arXiv
Year: 2019
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The response of a spherical moist shallow water system to tropical imbalances in the presence of inhomogeneous saturation fields is examined. While the initial moist response is similar to the dry reference run, albeit with a reduced equivalent depth, the long time solution depends quite strikingly on the nature of the saturation field. For a saturation field that only depends on latitude, specifically, one with a peak at the equator and falls off meridionally in both hemispheres, height imbalances adjust to large-scale, low-frequency westward propagating modes. When the background saturation environment is also allowed to vary with longitude, in addition to a westward quadrupole, there is a distinct eastward propagating response at long times. The nature of this eastward propagating mode is well described by moist potential vorticity conservation and it consists of wave packets that arc out to midlatitudes and return to the tropics and are predominantly rotational in character. In all moist cases, initially formed Kelvin waves decay, and this appears to be tied to the off-equatorial organization of moisture anomalies by rotational modes. Many of these basic features carry over to the response in the presence of realistic saturation fields derived from reanalysis based precipitable water. In boreal summer, long time eastward response is restricted to northern hemisphere and takes the form of a wavetrain that passes over Indian landmass into the subtropics, reaching across the Pacific to North America. In boreal winter, the eastward mode consists of a subtropically confined rotational quadrupole along with midlatitudinal disturbances. Thus, in addition to circumnavigating westward Rossby waves, slow eastward propagating modes appear to be a robust feature of the shallow water system with interactive moisture in the presence of saturation fields that vary with latitude and longitude.
description: 26 pages, 18 figures. Published in QJRMS
Signatures of Short Distance Physics in the Cosmic Microwave Background
Creators: name: Kaloper, Nemanja
name: Kleban, Matthew
name: Lawrence, Albion
name: Shenker, Stephen
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We systematically investigate the effect of short distance physics on the spectrum of temperature anistropies in the Cosmic Microwave Background produced during inflation. We present a general argument-assuming only low energy locality-that the size of such effects are of order H^2/M^2, where H is the Hubble parameter during inflation, and M is the scale of the high energy physics. We evaluate the strength of such effects in a number of specific string and M theory models. In weakly coupled field theory and string theory models, the effects are far too small to be observed. In phenomenologically attractive Horava-Witten compactifications, the effects are much larger but still unobservable. In certain M theory models, for which the fundamental Planck scale is several orders of magnitude below the conventional scale of grand unification, the effects may be on the threshold of detectability. However, observations of both the scalar and tensor fluctuation contributions to the Cosmic Microwave Background power spectrum-with a precision near the cosmic variance limit-are necessary in order to unambiguously demonstrate the existence of these signatures of high energy physics. This is a formidable experimental challenge.
description: 49 pages, 2 figures. References added, minor typos corrected
Regularity of a $\bar\partial$-solution operator for strongly $\mathbf C$-linearly convex domains with minimal smoothness
Creators: name: Gong, Xianghong
name: Lanzani, Loredana
Publisher: name: arXiv
Year: 2019
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 32A06, 32T15, 32W05

description: We prove regularity of solutions of the $\bar\partial$-problem in the Hölder-Zygmund spaces of bounded, strongly $\mathbf C$-linearly convex domains of class $C^{1,1}$. The proofs rely on a new, analytic characterization of said domains which is of independent interest, and on techniques that were recently developed by the first-named author to prove estimates for the $\bar\partial$-problem on strongly pseudoconvex domains of class $C^2$.
description: 19 pages. The authors improve the exposition of the proof of Proposition 2.5 of this paper which has been published in JGEA
title: A summary of the Jurassic System in North and East-Central Iran
Creators: name: Seyed-Emami, Kazem
name: Wilmsen, Markus
name: Fürsich, Franz T.
Publisher: name: SNSB - Bayerische Staatssammlung für Paläontologie und Geologie
Year: 2021

description: The rocks of the Jurassic System in North and Central Iran are represented by very thick sedimentary successions reflecting the deposition during two tectono-stratigraphic megacycles, bounded by three important unconformities. The older (Early to early Middle Jurassic) cycle starts, after the Late Triassic closure of the Palaeotethys and the collision of the Iran Plate with the southern margin of Eurasia (Turan Plate), with an abrupt uplift of the Cimmerian Mountains around the Triassic–Jurassic boundary (Main-Cimmerian Event) and is terminated by the Mid-Cimmerian Tectonic Event in the mid-Bajocian. The predominantly siliciclastic sediments of this tectono-stratigraphic cycle are accommodated in the Ab-e-Haji Subgroup of the (upper) Shemshak Group. The Ab-e-Haji Subgroup consists of thick and widespread, partly coal-bearing siliciclastic strata and also records some important marine ingressions, especially in the Toarcian and Aalenian. The younger tectono-stratigraphic cycle starts with an extensive marine transgression in the Late Bajocian and ends around the Jurassic-Cretaceous boundary with the Late Cimmerian Tectonic Event. In the aftermath of the Mid-Cimmerian Tectonic Event, the Iran Plate was dissected into several structural units, the geological histories of which differed and so did their facies patterns. Thus, in North Iran two main sedimentary areas developed, namely the Alborz and Koppeh Dagh basins, which show moderate diffe-rences in lithology and thicknesses. However, the differentiation is much more pronounced on the Central-East Iranian Microcontinent, which comprises three N–S-oriented and independent structural units, i.e., from east to west the Lut, Tabas and Yazd blocks. During the Jurassic Period, the sea mostly covered the Tabas and Lut blocks, whereas the Yazd Block remained largely emergent. The lithologically diverse and numerous formations of the area are combined in the Magu and Bidou groups. Early to Early Middle Jurassic ammonite fau-nas of North and Central Iran are palaeobiogeographically closely related to Northwest European (Subboreal) ammonite faunas, allowing a similar biozonation. Concurrent with the Late Bajocian transgression, there is an abrupt change in faunal composition and the Middle and Late Jurassic ammonite faunas of North and Central Iran are much more similar to those of epicontinental seas bordering the nort-hern margin of the western Tethys and occupy an intermediate position between the Mediterranean and the Submediterranean Province. The results of the studies on ammonoid palaeobiogeography are in line with Early Jurassic palaeogeographic reconstructions that place the Iran Plate at fairly high palaeo-latitudes of about 45°N, followed by a rapid southward shift throughout the Middle and Late Jurassic to a position of about 30°N.
Chemical constituents from Cordia myxa L. (Boraginaceae) and their antibacterial activity
Creators: name: Matcheme, Matthieu
name: Dabolé, Bernard
name: Moussa, Djaouda
name: Nyemb, Jean Noël
name: Emmanuel, Talla
name: Laurent, Sophie
name: Henoumont, Céline
name: Venditti, Alessandro
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences

description: Chemical investigation of Cordia myxa L. (Boraginaceae) resulted in the isolation of the following ten known compounds: 1-naphthaleneacetic-5-carboxy-1,2,3,4,4a,7,8,8a-octahydro-1,2,4a-trimethyl-[1S-(1α,2β, 4a,8aα)]-acid (1), hexacosanoate-1-glyceryl (2), 3β-urs-12,20(30)-diene-27,28-dioic acid (3), 3β-D-glucopyranosylurs-12,20(30)-diene-27,28-dioic acid (4), stigmasterol (5), stigmasterol-3-O-β-D-glucopyranoside (6), oleanolic-acid (7), 3-O-acetyl-oleanolic acid (8), betulin (9) and spinasterol-3β-O-D-glucopyranoside (10). The isolated compounds were characterised by using spectroscopic methods, 1D and 2D NMR, mass spectroscopy (ESI-MS) and by comparison with the literature data. To the best of our knowledge, compounds 1, 3, 4, 8 and 10 were isolated for the first time from the Cordia genus. This result improves the chemotaxonomy knowledge of the Cordia genus. The antibacterial activities were performed by the Muller–Hinton agar diffusion method. The antibacterial activities were studied on Salmonella typhi, Staphylococcus aureus, Vibrio cholerae, Pseudomonas aeruginosa and Escherichia coli ATCC 25922. Compounds 8 and 9, at 20.0 mg/mL resulted to be effective antimicrobial against E. coli, V. cholerae and P. aeruginosa.
Unitary Quantum Field Theory on the Noncommutative Minkowski space
Creators: name: Bahns, D.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This is the written version of a talk I gave at the 35th Symposium Ahrenshoop in Berlin, Germany, August 2002. It is an exposition of joint work with S. Doplicher, K. Fredenhagen, and Gh. Piacitelli [1]. The violation of unitarity found in quantum field theory on noncommutative spacetimes in the context of the so-called modified Feynman rules is linked to the notion of time ordering implicitely used in the assumption that perturbation theory may be done in terms of Feynman propagators. Two alternative approaches which do not entail a violation of unitarity are sketched. An outlook upon our more recent work is given.
description: 6 pages. To appear in the proceedings of 35th International Symposium Ahrenshoop on the theory of Elementary Particles: Recent Developments in String / M Theory and Field Theory, Berlin, Germany, 26-30 Aug 2002 (special issue of the journal "Fortschritte der Physik") v2: minor addition to the abstract
The Economics of Forest Carbon Sequestration Revisited: A Challenge for Emissions Offset Trading
Creators: name: Van Kooten, G. Cornelis
name: Van Kooten, G. Cornelis
Publisher: name: Unknown
Year: 2015
Subjects: subject: Environmental Economics and Policy
subject: Resource /Energy Economics and Policy
subject: climate change mitigation and forestry
subject: carbon offsets and taxes
subject: carbon life-cycle analysis
subject: biomass energy
subject: wood products versus cement and steel
subject: discounting
subject: governance and corruption

description: This paper provides an overview of the role that forestry activities play in mitigating climate change. The emphasis is on a comparison of carbon offset credits and a carbon tax/subsidy scheme for incentivizing reductions in the release of CO2 emissions and increase in sequestration of atmospheric CO2 through forestry. In addition to traditional issues related to additionality, leakages, and the transaction costs of determining and verifying how many carbon offsets are created, we investigate the importance of good governance and contracts. There are three options available to a public or private forestland owner for creating carbon offsets once tree reach maturity: (1) avoid or delay harvest; (2) harvest timber and use sawmill, logging and other residuals to generate electricity; and (3) sustainably manage the forest and carbon fluxes (i.e., post-harvest wood product carbon pools and avoided emissions from substituting wood for non-wood in construction or wood bioenergy for fossil fuels) to maximize net revenues. Delaying harvests or avoiding deforestation are considered important but outside the domain of a tax/subsidy or cap-and-trade scheme. With respect to bioenergy, the analysis suggests that, if there is a carbon dividend, it is likely to be small even if the life cycle of carbon is appropriately taken into account. Further, if there is some urgency to mitigate climate change, the use of wood bioenergy is more likely to result in a carbon debt, even with respect to coal, because of the need to weight CO2 according to when it is released to and removed from the atmosphere. Only holistic commercial forest management that is sustainable and incentivizes sequestration of carbon assures efficient mitigation of climate change. We demonstrate this by investigating carbon fluxes derived from an integrated forest management model and confirm this result more generally on the basis of a Faustmann rotation age model that explicitly includes benefits of storing carbon.