cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Higher-Spin Fields in Braneworlds
Creators: name: Germani, Cristiano
name: Kehagias, Alex
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The dynamics of higher-spin fields in braneworlds is discussed. In particular, we study fermionic and bosonic higher-spin fields in AdS_5 and their localization on branes. We find that four-dimensional zero modes exist only for spin-one fields, if there are no couplings to the boundaries. If boundary couplings are allowed, as in the case of the bulk graviton, all bosons acquire a zero mode irrespective of their spin. We show that there are boundary conditions for fermions, which generate chiral zero modes in the four-dimensional spectrum. We also propose a gauge invariant on-shell action with cubic interactions by adding non-minimal couplings, which depend on the Weyl tensor. In addition, consistent couplings between higher-spin fields and matter on the brane are presented. Finally, in the AdS/CFT correspondence, where bulk 5D theories on AdS are related to 4D CFTs, we explicitly discuss the holographic picture of higher-spin theories in AdS_5 with and without boundaries.
description: 26 pages, 2 figures, Revtex style. v2 references added and a sign in the bosonic action corrected; v3 section 3 expanded, \Delta S_2 in section 5 generalized and therefore eq. 5.18 corrected, clarifications and references added. Version accepted for publication in Nuclear Physics B
Bitter metal salts activating D. rotundus T2R7 and human TAS2R7 from Bitter taste receptors of the common vampire bat are functional and show conserved responses to metal ions in vitro
Creators: name: Ziegler, Florian
name: Behrens, Maik
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Molecular Biology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology

description: Presentation of dose-response relationships for the activation of human TAS2R7 and Desmodus rotundus T2R7 by bitter salts.
Culturally sensitive stepped care for adolescent refugees: efficacy and cost–utility of a multicentric randomized controlled trial
Creators: name: Höhne, Edgar
name: Böge, Kerem
name: Karnouk, Carine
name: Tschorn, Mira
name: Banaschewski, Tobias
name: Hoell, Andreas
name: Sukale, Thorsten
name: Plener, Paul
name: Schneider, Frank
name: Padberg, Frank
name: Hasan, Alkomiet
name: Rapp, Michael A.
name: Bajbouj, Malek
name: Kamp-Becker, Inge
Publisher: name: Universität Ulm
Year: 2023
Subjects: subject: Refugee minors
subject: Depression
subject: PTSD
subject: Stepped care
subject: Cultural sensitive
subject: DDC 150 / Psychology
subject: DDC 610 / Medicine & health

description: Abstract Adolescent refugees and asylum seekers (ARAS) are highly vulnerable to mental health problems. Stepped care models (SCM) and culturally sensitive therapies offer promising treatment approaches to effectively provide necessary medical and psychological support. To our knowledge, we were the first to investigate whether a culturally sensitive SCM will reduce symptoms of depression and PTSD in ARAS more effectively and efficiently than treatment as usual (TAU). We conducted a multicentric, randomized, controlled and rater-blinded trial across Germany with ARAS between the ages of 14 to 21 years. Participants ( N  = 158) were stratified by their level of depressive symptom severity and then equally randomized to either SCM or TAU. Depending on their severity level, SCM participants were allocated to tailored interventions. Symptom changes were assessed for depression (PHQ) and PTSD (CATS) at four time points, with the primary end point at post-intervention after 12 weeks. Based on an intention-to-treat sample, we used a linear mixed model approach for the main statistical analyses. Further evaluations included cost–utility analyses, sensitivity analyses, follow-up-analyses, response and remission rates and subgroup analysis. We found a significant reduction of PHQ ( d  = 0.52) and CATS ( d  = 0.27) scores in both groups. However, there was no significant difference between SCM and TAU. Cost–utility analyses indicated that SCM generated greater cost–utility when measured as quality-adjusted life years compared to TAU. Subgroup analysis revealed different effects for the SCM interventions depending on the outcome measure. Although culturally sensitive, SCMs did not prove to be more effective in symptom change and represent a more cost-effective treatment alternative for mentally burdened ARAS. Our research contributes to the optimization of clinical productivity and the improvement of therapeutic care for ARAS. Disorder-specific interventions should be further investigated.
A Functional Recurrence to obtain the Prime Numbers using the Smarandache Prime Function
Creators: name: Ruiz, Sebastian Martin
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 11A41

description: In this article we gave a recurrence to obtain the n-th prime number as function of the (n-1)-th prime number.
description: 3 pages
Perturbation theory for operational quantum non-Markovianity
Creators: name: Bonifacio, Mariano
name: Budini, Adrián A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The definition of memory in operational approaches to quantum non-Markovianity depends on the statistical properties of different sets of outcomes related to successive measurement processes performed over the system of interest. Using projectors techniques we develop a perturbation theory that enables to expressing both joint probabilities and outcome correlations in terms of the unperturbed system density matrix propagator. This object defines the open system dynamics in absence of measurement processes. Successive series terms, which are scaled by the system-environment interaction strength, consist in a convolution structure involving system propagators weighted by higher order bath correlations. The formalism is corroborated by studying different dynamics that admit an exact description. Using the perturbative approach, unusual memory effects induced by the interplay between the system-environment interaction and measurement processes are found in finite temperature reservoirs.
description: 10 pages, 3 figures
On the analogy between self-gravitating Brownian particles and bacterial populations
Creators: name: Chavanis, P. H.
name: Ribot, M.
name: Rosier, C.
name: Sire, C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We develop the analogy between self-gravitating Brownian particles and bacterial populations. In the high friction limit, the self-gravitating Brownian gas is described by the Smoluchowski-Poisson system. These equations can develop a self-similar collapse leading to a finite time singularity. Coincidentally, the Smoluchowski-Poisson system corresponds to a simplified version of the Keller-Segel model of bacterial populations. In this biological context, it describes the chemotactic aggregation of the bacterial colonies. We extend these classical models by introducing a small-scale regularization. In the gravitational context, we consider a gas of self-gravitating Brownian fermions and in the biological context we consider finite size effects. In that case, the collapse stops when the system feels the influence of the small-scale regularization. A phenomenon of ``explosion'', reverse to the collapse, is also possible.
Comment on "A Tale of Two Theories: Quantum Griffiths Effects in Metallic Systems" by A. H. Castro-Neto and B. A. Jones
Creators: name: Millis, A. J.
name: Morr, D. K.
name: Schmalian, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: In a recent paper Castro-Neto and Jones argue that because the observability of quantum Griffiths-McCoy effects in metals is controlled by non-universal quantities, the quantum Griffiths-McCoy scenario may be a viable explanation for the non-fermi-liquid behavior observed in heavy fermion compounds. In this Comment we point out that the important non-universal quantity is the damping of the spin dynamics by the metallic electrons; quantum Griffiths-McCoy effects occur only if this is parametrically weak relative to other scales in the problem, i.e. if the spins are decoupled from the carriers. This suggests that in heavy fermion materials, where the Kondo effect leads to a strong carrier-spin coupling, quantum Griffiths-McCoy effects are unlikely to occur.
description: 2 pages
Family structures and parents’ occupational models: its impact on children’s diabetes
Creators: name: Schlarb, Pauline
name: Büttner, Janina M.
name: Tittel, Sascha R.
name: Mönkemöller, Kirsten
name: Müller-Godeffroy, Esther
name: Boettcher, Claudia
name: Galler, Angela
name: Berger, Gabriele
name: Brosig, Burkhard
name: Holl, Reinhard W.
Publisher: name: Universität Ulm
Year: 2023
Subjects: subject: T1DM
subject: Family structure
subject: Parents’ working time models
subject: German Diabetes Prospective Follow-up Registry (DPV)
subject: Family psychosomatics
subject: Adherence
subject: DDC 610 / Medicine & health

description: AbstractAimsThis study examines how family-related factors influence the management of children and adolescents with type 1 diabetes (T1DM). We investigate the relationship between family patterns, parental work schedules and metabolic control.Materials and methodsWe analysed data from a nationwide diabetes survey (DPV) focusing on HbA1c, severe hypoglycaemia, diabetic ketoacidosis, hospital admissions and inpatient treatment duration. We used linear regression and negative binomial regression models. Our study includes 15,340 children under the age of 18 with data on family structure and parental division of labour.ResultsChildren from two-parent households have better HbA1c outcomes than children from single-parent, blended or no-parent households (p < .0001). Higher HbA1C levels are associated with children living with an unemployed father, as opposed to those with full-time working parents or with a full-time working father and a part-time working mother (p < .001).ConclusionsThese findings emphasise the importance of carefully considering family structure and working time models in the management of paediatric T1DM. Our results highlight risk factors within the family environment and emphasise the need for family-focused counselling of high-risk patients or severe cases in clinical practice.
The Effect of Climate Change on Wetlands and Waterfowl in Western Canada: Incorporating Cropping Decisions into a Bioeconomic Model
Creators: name: Withey, Patrick
name: Van Kooten, G. Cornelis
name: Withey, Patrick
name: Van Kooten, G. Cornelis
Publisher: name: Unknown
Year: 2011
Subjects: subject: Environmental Economics and Policy
subject: bioeconomic modeling
subject: wetland protection
subject: wildlife management
subject: climate change
subject: biofuels

description: We extend an earlier bioeconomic model of optimal duck harvest and wetland retention in the Prairie Pothole Region of Western Canada to include cropping decisions. Instead of a single state equation, the model has two state equations representing the population dynamics of ducks and the amount of wetlands. We use the model to estimate the impact of climate change on wetlands and waterfowl, including direct climate effects as well as land use change due to biofuel policies aimed at mitigating climate change. The model predicts that climate change will reduce wetlands by 47-56 percent from historic levels. Land use change is expected to reduce wetlands by 45 percent from historic levels, whereas direct climate effects will range from a reduction of 2-11 percent, depending on the future climate scenario. This result indicates that models that neglect the effect of land use change underestimate the effect of climate change on wetlands. Further, wetlands loss is geographically heterogeneous, with losses being the largest in Saskatchewan.
Benchmarking and Performance Modelling of MapReduce Communication Pattern
Creators: name: Ceesay, Sheriffo
name: Barker, Adam
name: Lin, Yuhui
Publisher: name: arXiv
Year: 2020
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Machine Learning (cs.LG)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: Understanding and predicting the performance of big data applications running in the cloud or on-premises could help minimise the overall cost of operations and provide opportunities in efforts to identify performance bottlenecks. The complexity of the low-level internals of big data frameworks and the ubiquity of application and workload configuration parameters makes it challenging and expensive to come up with comprehensive performance modelling solutions. In this paper, instead of focusing on a wide range of configurable parameters, we studied the low-level internals of the MapReduce communication pattern and used a minimal set of performance drivers to develop a set of phase level parametric models for approximating the execution time of a given application on a given cluster. Models can be used to infer the performance of unseen applications and approximate their performance when an arbitrary dataset is used as input. Our approach is validated by running empirical experiments in two setups. On average the error rate in both setups is plus or minus 10% from the measured values.
description: 8 pages, 10 figures
Additional file 2 of Hybrid simulation of pediatric gynecologic examination: a mix-methods study of learners’ attitudes and factors affecting learning
Creators: name: Torres, Anna
name: Horodeńska, Magdalena
name: Witkowski, Grzegorz
name: Torres, Kamil
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 2. Self-assessment questionnaire regarding skills in PAG examination.
Large-N limit of a magnetic impurity in unconventional density waves
Creators: name: Dóra, Balázs
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate the effect of unconventional density wave (UDW) condensate on an Anderson impurity using large-N technique at T=0. In accordance with previous treatments of a Kondo impurity in pseudogap phases, we find that Kondo effect occurs only in a certain range of parameters. The f-electron density of states reflects the influence of UDW at low energies and around the maximum of the density wave gap. The static spin susceptibility diverges at the critical coupling, indicating the transition from strong to weak coupling. In the dynamic spin susceptibility an additional peak appears showing the presence the UDW gap. Predictions concerning non-linear density of states are made. Our results apply to other unconventional condensates such as d-wave superconductors and d-density waves as well.
description: 9 pages, 7 figures
Rough surface scattering in many-mode conducting channels: Gradient versus amplitude scattering
Creators: name: Izrailev, F. M.
name: Makarov, N. M.
name: Rendon, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Chaotic Dynamics (nlin.CD)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the effect of surface scattering on transport properties in many-mode conducting channels (electron waveguides). Assuming a strong roughness of the surface profiles, we show that there are two independent control parameters that determine statistical properties of the scattering. The first parameter is the ratio of the amplitude of the roughness to the transverse width of the waveguide. The second one, which is typically omitted, is determined by the mean value of the derivative of the profile. This parameter may be large, thus leading to specific properties of scattering. Our results may be used in experimental realizations of the surface scattering of electron waves, as well as for other applications (e.g., for optical and microwave waveguides)
description: 6 pages, no figures
Potential impacts of ballast water regulations on international trade, shipping patterns, and the global economy: An integrated transportation and economic modeling assessment
Creators: name: Wang, Zhaojun
name: Nong, Duy
name: Countryman, Amanda M.
name: Corbett, James J.
name: Warziniack, Travis
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Economics (econ.GN)
subject: FOS: Economics and business

description: Global ballast water management regulations aiming to decrease aquatic species invasion require actions that can increase shipping costs. We employ an integrated shipping cost and global economic modeling approach to investigate the impacts of ballast water regulations on bilateral trade, national economies, and shipping patterns. Given the potential need for more stringent regulation at regional hotspots of species invasions, this work considers two ballast water treatment policy scenarios: implementation of current international regulations, and a possible stricter regional regulation that targets ships traveling to and from the United States while other vessels continue to face current standards. We find that ballast water management compliance costs under both scenarios lead to modest negative impacts on international trade and national economies overall. However, stricter regulations applied to U.S. ports are expected to have large negative impacts on bilateral trade of several specific commodities for a few countries. Trade diversion causes decreased U.S. imports of some products, leading to minor economic welfare losses.
Constraints on isocurvature models from the WMAP first-year data
Creators: name: Moodley, K.
name: Bucher, M.
name: Dunkley, J.
name: Ferreira, P. G.
name: Skordis, C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the constraints imposed by the first-year WMAP CMB data extended to higher multipole by data from ACBAR, BOOMERANG, CBI and the VSA and by the LSS data from the 2dF galaxy redshift survey on the possible amplitude of primordial isocurvature modes. A flat universe with CDM and Lambda is assumed, and the baryon, CDM (CI), and neutrino density (NID) and velocity (NIV) isocurvature modes are considered. Constraints on the allowed isocurvature contributions are established from the data for various combinations of the adiabatic mode and one, two, and three isocurvature modes, with intermode cross-correlations allowed. Since baryon and CDM isocurvature are observationally virtually indistinguishable, these modes are not considered separately. We find that when just a single isocurvature mode is added, the present data allows an isocurvature fraction as large as 13+-6, 7+-4, and 13+-7 percent for adiabatic plus the CI, NID, and NIV modes, respectively. When two isocurvature modes plus the adiabatic mode and cross-correlations are allowed, these percentages rise to 47+-16, 34+-12, and 44+-12 for the combinations CI+NID, CI+NIV, and NID+NIV, respectively. Finally, when all three isocurvature modes and cross-correlations are allowed, the admissible isocurvature fraction rises to 57+-9 per cent. The sensitivity of the results to the choice of prior probability distribution is examined.
description: 20 pages, 24 figures. Submitted to PRD
Additional file 4 of Use of the GRADE approach in health policymaking and evaluation: a scoping review of nutrition and physical activity policies
Creators: name: Zähringer, Jasmin
name: Schwingshackl, Lukas
name: Movsisyan, Ani
name: Stratil, Jan M.
name: Capacci, Sara
name: Steinacker, Jürgen M.
name: Forberger, Sarah
name: Ahrens, Wolfgang
name: Gaudry, Daniela Küllenberg De
name: Schünemann, Holger J.
name: Joerg J. Meerpohl
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Science Policy
subject: Sociology
subject: FOS: Sociology

description: Additional file 4. WHO – Strengths and recommendations according to GRADE.
Perturbations in bouncing cosmologies: dynamical attractor vs scale invariance
Creators: name: Creminelli, Paolo
name: Nicolis, Alberto
name: Zaldarriaga, Matias
Publisher: name: arXiv
Year: 2004
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: For bouncing cosmologies such as the ekpyrotic/cyclic scenarios we show that it is possible to make predictions for density perturbations which are independent of the details of the bouncing phase. This can be achieved, as in inflationary cosmology, thanks to the existence of a dynamical attractor, which makes local observables equal to the unperturbed solution up to exponentially small terms. Assuming that the physics of the bounce is not extremely sensitive to these corrections, perturbations can be evolved even at non-linear level. The resulting spectrum is not scale invariant and thus incompatible with experimental data. This can be explicitly shown in synchronous gauge where, contrary to what happens in the commonly used Newtonian gauge, all perturbations remain small going towards the bounce and the existence of the attractor is manifest.
description: 19 pages
What Makes Mountain Pine Beetle a Tricky Pest? Difficult Decisions when Facing Beetle Attack in a Mixed Species Forest
Creators: name: Bogle, Tim
name: Van Kooten, G. Cornelis
name: Bogle, Tim
name: Van Kooten, G. Cornelis
Publisher: name: Unknown
Year: 2011
Subjects: subject: Environmental Economics and Policy
subject: Resource /Energy Economics and Policy
subject: optimal timber supply
subject: catastrophic disturbance
subject: shelf life of damaged trees

description: The pine forest of British Columbia is undergoing its largest recorded pest epidemic. The damage caused by native mountain pine beetle creates difficulties for the public owner of the resource, which is interested in protecting future timber supply while salvaging dead and dying pine. This paper addresses two problems that have often been over-looked: the variability and timing of beetle attack, and the variability of pine inventory in each stand. Management controls are limited to the annual rate of harvest and timber product outputs are based on shelf life – the length of time infested timber can still be used to produce lumber. Using mathematical programming to schedule harvest, we introduce a novel objective function based on the maximization of the net returns of the timber portfolio at the end of the 20 year time horizon under harvest and product flow constraints implemented by the public landowner to insure stability in the forest sector, and especially a stable supply of feedstock (bushchips) for bio-energy production, while recovering value from stands that would otherwise become uneconomical to harvest. The optimal short-run response is to increase harvests over the baseline harvest without beetle. The use of future net returns as the optimization objective ensures that harvest during the 20 year 2 time horizon occurs in stands that would otherwise be economically unharvestable and also the harvest is generally above 70% pine in aggregate. Net returns do not exceed those of the baseline harvest without beetle, regardless of the scenario, as the harvest of low value bushchips must be subsidized by the harvest of timber that can be converted into lumber. Shelflife provides significant changes in NPV as more timber can be converted to lumber if shelflife is longer. The government has a difficult fiscal management problem. Employing an evenflow of total harvest can yield higher net gains but at the risk of relying more heavily on the harvest of damaged timber and reduced future harvests of quality timber for dimensional lumber. This strategy would produce a “feast” of short term revenue followed by a “famine” when bushchip harvest is subsidized by the harvest of better quality timber. Alternatively, managing the individual forest products could yield some minimum government revenues but this strategy could also lead to the need to deplete reserves that could be reserved for future timber supply. Regardless of the strategy, to optimize for future timber supply potential means that a large percentage (25% in this study) of the damaged pine should only be harvested in the future and will not be of a quality to produce lumber.
Axial collective excitations of a degenerate Fermi gas in the BEC to unitarity crossover
Creators: name: Combescot, R.
name: Leyronas, X.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We show that, with reasonable hypotheses leading to a simple modeling,a link can be obtained from experiments on the axial low frequency collective modes between the molecular scattering length $a_M$ and the energy parameter $ξ\equiv 1 + β$ of the gas at the unitarity limit. We also point out that, in order to reach the range where the features of the Bose limit can be clearly seen, experiments have to go to more dilute situations than have been achieved presently.
description: 5 pages, revtex, 2 figures
Amino acid sequence alignment of D. rotundus T2R7 and human TAS2R7 from Bitter taste receptors of the common vampire bat are functional and show conserved responses to metal ions in vitro
Creators: name: Ziegler, Florian
name: Behrens, Maik
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Molecular Biology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology

description: Amino acid sequences of human TAS2R7 and Desmodus rotundus T2R7
SQL DATABASES AND BIG DATA ANALYTICS: NAVIGATING THE DATA MANAGEMENT LANDSCAPE
Creators: name: Quvvatov, Behruz
Publisher: name: Zenodo
Year: 2024

description: Data, in its ever-expanding volume, plays a decisive role in decision-making processes in various fields. SQL databases and Big Data analytics are mainstays in the modern data management landscape. This article aims to shed light on the fundamental principles underlying SQL databases and the complexities associated with analyzing large data sets, commonly referred to as Big Data.
The Fermi-Pasta-Ulam problem: 50 years of progress
Creators: name: Berman, G. P.
name: Izrailev, F. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A brief review of the Fermi-Pasta-Ulam (FPU) paradox is given, together with its suggested resolutions and its relation to other physical problems. We focus on the ideas and concepts that have become the core of modern nonlinear mechanics, in their historical perspective. Starting from the first numerical results of FPU, both theoretical and numerical findings are discussed in close connection with the problems of ergodicity, integrability, chaos and stability of motion. New directions related to the Bose-Einstein condensation and quantum systems of interacting Bose-particles are also considered.
description: 48 pages, no figures, corrected and accepted for publication
Charging for the use of plant varieties
Creators: name: Kingwell, Ross S.
name: Kingwell, Ross S.
Publisher: name: Unknown
Year: 2001
Subjects: Crop Production/Industries
Resource /Energy Economics and Policy

description: Private and many publicly funded plant breeding organisations charge farmers for use of varieties they develop. This article compares four alternative charging mechanisms and outlines responses to these alternatives by farmers and plant breeders. Risk‐averse farmers and breeders are shown to have opposite preferences for charging mechanisms. Results suggest profit‐based or royalties are preferred by farmers whereas breeders prefer area or tonnage‐based royalties. Risk‐sharing arrangements between both parties could lead to an overall preference for profit‐based or royalties. However, this finding is subject to important caveats and practical limitations.
Técnica de mergulhia: cultivando mudas saudáveis sem equipamentos especiais
Creators: name: Popoff, Sandra
Publisher: name: Zenodo
Year: 2024
Subjects: jornalismo rural
agricultura sustentável

description: A propagação é um modo simples de gerar plantas extras para o seu jardim ou para compartilhar com os seus amigos e conhecidos.

No geral, as plantas podem ser propagadas de diversas maneiras, como através de sementes ou mudas. Entretanto, existem métodos capazes de facilitar este serviço, como é o caso da técnica de mergulhia.

A técnica de mergulhia fundamenta-se na estratificação da planta, promovendo o desenvolvimento de raízes no caule enquanto este permanece conectado à planta matriz. Tal abordagem possibilita a rápida obtenção de variedades robustas, sem comprometer a integridade da planta original.

Você já teve conhecimento desta técnica singular e altamente eficaz? Para aprofundar seu entendimento sobre o assunto, reserve alguns minutos do seu dia e explore nossa matéria completa abaixo. Está pronto para iniciar?
Host Galaxy Properties of Changing-look AGN Revealed in the MaNGA Survey
Creators: name: Yu, Xiaoling
name: Shi, Yong
name: Chen, Yanmei
name: Chen, Jianhang
name: Li, Songlin
name: Bing, Longji
name: Ge, Junqiang
name: Riffel, Rogemar A.
name: Riffel, Rogério
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Changing-look Active Galactic Nuclei (CL-AGNs) are a subset of AGNs in which the broad Balmer emission lines appear or disappear within a few years. We use the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey to identify five CL-AGNs. The 2-D photometric and kinematic maps reveal common features as well as some unusual properties of CL-AGN hosts as compared to the AGN hosts in general. All MaNGA CL-AGNs reside in the star-forming main sequence, similar to MaNGA non-changing-look AGNs (NCL-AGNs). The $80\% \pm 16\%$ of our CL-AGNs do possess pseudo-bulge features, and follow the overall NCL-AGNs $M_{BH}-σ_{*}$ relationship. The kinematic measurements indicate that they have similar distributions in the plane of angular momentum versus galaxy ellipticity. MaNGA CL-AGNs however show a higher, but not statistically significant ($20\% \pm 16\%$) fraction of counter-rotating features compared to that ($1.84\% \pm 0.61\%$) in general star-formation population. In addition, MaNGA CL-AGNs favor more face-on (axis ratio $>$ 0.7) than that of Type I NCL-AGNs. These results suggest that host galaxies could play a role in the CL-AGN phenomenon.
description: 11 pages, 4 tables, 4 figures. Accepted for publication in MNRAS
Measurement of the Ratio BR(B- --> D*0 K-)/BR(B- --> D*0 pi-) and of the CP Asymmetry of B- --> D*0(CP+) K- Decays
Creators: name: The BABAR Collaboration
name: Aubert, B.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study the decays B- --> D*0 pi- and B- --> D*0 K-, where the D*0 decays into D0 pi0, with the D0 reconstructed in the CP-even (CP+) eigenstates K- K+ and pi- pi+ and in the (non-CP) channels K- pi+, K- pi+ pi+ pi-, and K- pi+ pi0. Using a sample of about 123 million BBbar pairs, we measure the ratios of decay rates R*(non-CP)=BR(B- --> D*0(non-CP) K-)/BR(B- --> D*0(non-CP) pi-) = 0.0813+-0.0040(stat)+0.0042-0.0031}(syst), and provide the first measurements of R*(CP+)= BR(B- --> D*0(CP+) K-)/BR(B- --> D*0(CP+) pi-) = 0.086+-0.021(stat)+-0. 007(syst), and of the CP asymmetry A*(CP+) = (BR(B- --> D*0(CP+) K-) - BR(B+ --> D*0(CP+) K+))/(BR(B- --> D*0(CP+) K-) + BR(B+ --> D*0(CP+) K+)) = -0.10+-0.23(stat)+0.03-0.04(syst).
description: 8 pages, 1 postscript figure
Pricing-to-market in NSW rice export markets
Creators: name: Griffith, Garry R.
name: Mullen, John D.
name: Griffith, Garry R.
name: Mullen, John D.
Publisher: name: Unknown
Year: 2001
Subjects: Crop Production/Industries
International Relations/Trade

description: The Ricegrowers’ Cooperative Limited is a single‐desk seller of NSW Japonica rice on the export market. Confidential monthly price data supplied by the Cooperative were used to examine ‘pricing‐to‐market’ in four of its major export markets. The hypothesis of a competitive market was rejected. The Cooperative has been able to vary mark‐ups over different markets and with respect to the importer’s currency in each market. The exchange rate results in particular suggest that the Cooperative has been able to exercise market power to obtain price premiums.
List of bitter substances used for receptor screening from Bitter taste receptors of the common vampire bat are functional and show conserved responses to metal ions in vitro
Creators: name: Ziegler, Florian
name: Behrens, Maik
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Molecular Biology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology

description: List of bitter test substances applied in Ca2+ - imaging experiments
Additional file 3 of Use of the GRADE approach in health policymaking and evaluation: a scoping review of nutrition and physical activity policies
Creators: name: Zähringer, Jasmin
name: Schwingshackl, Lukas
name: Movsisyan, Ani
name: Stratil, Jan M.
name: Capacci, Sara
name: Steinacker, Jürgen M.
name: Forberger, Sarah
name: Ahrens, Wolfgang
name: Gaudry, Daniela Küllenberg De
name: Schünemann, Holger J.
name: Joerg J. Meerpohl
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Science Policy
subject: Sociology
subject: FOS: Sociology

description: Additional file 3. Survey among European health policymakers.
How Effective are Smart Contract Analysis Tools? Evaluating Smart Contract Static Analysis Tools Using Bug Injection
Creators: name: Ghaleb, Asem
name: Pattabiraman, Karthik
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Security attacks targeting smart contracts have been on the rise, which have led to financial loss and erosion of trust. Therefore, it is important to enable developers to discover security vulnerabilities in smart contracts before deployment. A number of static analysis tools have been developed for finding security bugs in smart contracts. However, despite the numerous bug-finding tools, there is no systematic approach to evaluate the proposed tools and gauge their effectiveness. This paper proposes SolidiFI, an automated and systematic approach for evaluating smart contract static analysis tools. SolidiFI is based on injecting bugs (i.e., code defects) into all potential locations in a smart contract to introduce targeted security vulnerabilities. SolidiFI then checks the generated buggy contract using the static analysis tools, and identifies the bugs that the tools are unable to detect (false-negatives) along with identifying the bugs reported as false-positives. SolidiFI is used to evaluate six widely-used static analysis tools, namely, Oyente, Securify, Mythril, SmartCheck, Manticore and Slither, using a set of 50 contracts injected by 9369 distinct bugs. It finds several instances of bugs that are not detected by the evaluated tools despite their claims of being able to detect such bugs, and all the tools report many false positives
description: ISSTA 2020
The strange case of a sub-DLA with very little HI
Creators: name: Kanekar, Nissim
name: Chengalur, Jayaram N.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report a deep search for HI 21cm emission from the $z= 0.00632$ sub-DLA toward PG1216+069 with the Giant Metrewave Radio Telescope. No emission was detected and our $5σ$ upper limit on the mass of any associated galaxy is $M_{\rm HI} \lesssim 10^7 M_\odot$, nearly 3 orders of magnitude less than M$_{\rm HI}^\star$. The $z \sim 0.006$ absorber is thus the most extreme known deviation from the standard paradigm in which high column density quasar absorption lines arise in the disks of gas-rich galaxies.
description: 4 pages, 1 figure. Accepted for publication in Astronomy and Astrophysics Letters
Additional file 1 of Hybrid simulation of pediatric gynecologic examination: a mix-methods study of learners’ attitudes and factors affecting learning
Creators: name: Torres, Anna
name: Horodeńska, Magdalena
name: Witkowski, Grzegorz
name: Torres, Kamil
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1. Attitude questionnaire.
Limited arbitrage in international wheat markets: threshold and smooth transition cointegration
Creators: name: Mainardi, Stefano
name: Mainardi, Stefano
Publisher: name: Unknown
Year: 2001
Subjects: Crop Production/Industries
International Relations/Trade

description: The strength of the adjustment towards arbitrage equilibrium can be expected to be somehow proportional to the extent of market price deviations from equilibrium. In this article, threshold and smooth transition cointegration models are applied to quarterly wheat prices of three major world suppliers over the period 1973–99. Results based on arranged autoregressions of the error term of a static regression do not prove to be robust. Although non‐linear models relying on a multivariate system approach yield partly contradictory results, the main evidence from the latter suggests a weakening, rather than an outright inaction, of the adjustment process in the inner regime.
Thermosensitive liposomal cisplatin : formulation development, in vitro characterization and in vivo plasma elimination studies
Creators: name: Woo, Janet
Publisher: name: University of British Columbia
Year: 2009

description: Cytotoxic anticancer drugs lack specificity and for this reason, antitumour effects are often associated with severe and sometimes life threatening toxicities. In an effort to improve the specificity and targeting of anticancer drugs, investigators have developed drug carrier formulations. Among the different drug delivery systems designed for intravenous use, liposomes have demonstrated beneficial properties that translate into meaningful improvements in therapeutic activity for many anticancer drugs. Cisplatin is a commonly employed anticancer drug which is nephrotoxic and myelosuppressive. In an effort to minimize the drug associated toxicities, a liposomal drug formulation of cisplatin has been developed for use in clinical trials. The results of these clinical studies; however, were disappointing as the cisplatin formulation demonstrated insignificant therapeutic activity, due in part, to the insufficient release of encapsulated contents following administration. For this reason, the development of a triggered release liposome formulation is desirable. In this report, cisplatin was encapsulated into lysolipid containing thermosensitive liposomes (LTSL) using a novel technique, which relies on the equilibration of cisplatin across the liposomal bilayer at temperatures above the gel-to-liquid phase transition (Tc) of the bulk phospholipid. Mild heating of the LTSL did not engender the presence of any irregular structures as determined by cryo-transmission electron microscopy and interestingly, the drug loaded liposomes were similar in morphology to the empty liposomes. In vitro data demonstrated that >95% of encapsulated cisplatin was released within 5 minutes following mild heating at 42°C while <5% was released after incubation at 37°C. Plasma elimination studies demonstrated the importance of regulating the whole animal body temperature when injecting thermosensitive liposomes. Under conditions where murine body temperature was well controlled (37° + 0.5°C), plasma elimination profiles indicated that LTSL-cisplatin retained approximately 50% more drug 2 hours following intravenous administration than that observed when animal body temperature was not carefully controlled. Collectively, these results suggest that this thermosensitive liposomal formulation of cisplatin is suitable for further studies designed to assess therapeutic activity when used in conjunction with mild local heating.
Additional file 2 of Use of the GRADE approach in health policymaking and evaluation: a scoping review of nutrition and physical activity policies
Creators: name: Zähringer, Jasmin
name: Schwingshackl, Lukas
name: Movsisyan, Ani
name: Stratil, Jan M.
name: Capacci, Sara
name: Steinacker, Jürgen M.
name: Forberger, Sarah
name: Ahrens, Wolfgang
name: Gaudry, Daniela Küllenberg De
name: Schünemann, Holger J.
name: Joerg J. Meerpohl
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Science Policy
subject: Sociology
subject: FOS: Sociology

description: Additional file 2. Search in MEDLINE via Ovid, 4 July 2019.
A New Handle on de Sitter Compactifications
Creators: name: Saltman, Alex
name: Silverstein, Eva
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We construct a large new class of de Sitter (and anti de Sitter) vacua of critical string theory from flux compactifications on products of Riemann surfaces. In the construction, the leading effects stabilizing the moduli are perturbative. We show that these effects self-consistently dominate over standard estimates for further $α^\prime$ and quantum corrections, via tuning available from large flux and brane quantum numbers.
description: 26 pages, harvmac big. v2: Correction generalizing specific ingredients required for tunable negative term; conclusions and structure of potential unchanged
title: Atlas des DOM. - La Réunion - Planche 36 : Scolarité : notice, page 2 "A. L'importance des effectifs"
Creators: name: Perrolat, Gérard
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2017
Subjects: éducation
enseignement
enseignement agricole
enseignement général
enseignement primaire
enseignement secondaire
enseignement supérieur
formation professionnelle
politique de l'éducation
scolarisation
élève

description: Présente les effectifs scolaires d'un point de vue quantitatif. Deux graphiques et deux tableaux appuient ces propos : un graphique en courbes montre l'évolution du flux de rentrée et du flux de sortie dans l'enseignement du 1er degré public (y compris l'enseignement pré-scolaire) de 1966 à 1971, un graphique en courbes montre l'évolution des effectifs scolaires de 1950 à 1970, un tableau montre la répartition des effectifs scolaires dans les différents établissements d'enseignement de 1970 à 1971, un tableau montre la scolarisation dans l'enseignement des 1er et 2e degrés par année de naissance et par niveau d'enseignement.
description: Relation: http://www.nakala.fr/data/11280/61ccb7b0
description: Relation: http://www.nakala.fr/data/11280/6eb866da
description: Relation: http://www.nakala.fr/data/11280/7aa99eab
description: Coverage: La Réunion
description: Temporal: start=1950; end=1971;
Changes in regional inequality in rural China: decomposing the Gini index by income sources
Creators: name: Wan, Guang Hua
name: Wan, Guang Hua
Publisher: name: Unknown
Year: 2001
Subjects: Community/Rural/Urban Development

description: A new method is proposed to decompose inequality changes as measured by the Gini index into structural effects, real inequality effects and interactive effects. Application of the method to updated Chinese data reveals that structural effects represent the driving force underlying the increasing trend in regional income inequality in rural China. Policy implications are explored. In addition to these contributions, considerable efforts are made to construct the income data used in the article. Pitfalls in measuring income inequality in rural China are discussed.
Modelling socially optimal land allocations for sugar cane growing in North Queensland: a linked mathematical programming and choice modelling study
Creators: name: Mallawaarachchi, Thilak
name: Quiggin, John C.
name: Mallawaarachchi, Thilak
name: Quiggin, John C.
Publisher: name: Unknown
Year: 2001
Subjects: Crop Production/Industries
Land Economics/Use

description: A modelling framework is developed to determine the joint economic and environmental net benefits of alternative land allocation strategies. Estimates of community preferences for preservation of natural land, derived from a choice modelling study, are used as input to a model of agricultural production in an optimisation framework. The trade‐offs between agricultural production and environmental protection are analysed using the sugar industry of the Herbert River district of north Queensland as an example. Spatially‐differentiated resource attributes and the opportunity costs of natural land determine the optimal trade‐offs between production and conservation for a range of sugar prices.
Swarm Intelligence in MANETs: A Survey
Creators: name: Mehtab Alam
Publisher: name: figshare
Year: 2021
Subjects: Computer Engineering

description: The Wireless Adhoc Networks (WANETs) are decentralized network with no infrastructure and access point to
control the nodes. Since the topologies in WANETs are dynamic the routing becomes the challenging task as
nodes are moving with low bandwidth and traditional routing algorithm doesn’t work with WANETs. This
paper gives the systematic literature review of techniques and routing algorithm that exists in WANETs, also the
applicability of Swarm Intelligence (SI) in MANETs. The aim of performing the survey is to gain better knowledge of
Swarm Intelligence and techniques that are applied to the WANETs.
Symmetries and Lagrangian time-discretizations of Euler equations
Creators: name: Penskoi, Alexei V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 34K99, 22E65, 70H99

description: In the late 80s - early 90s J. Moser and A. P. Veselov considered Lagrangian discrete systems on Lie groups with additional symmetry conditions imposed on Lagrangians. They observed that such systems are often integrable time-discretizations of integrable Euler equations on these Lie groups. In recent papers we studied Lagrangian discrete systems with additional symmetry requirements on certain infinite-dimensional Lie groups. We will discuss some interesting properties of these systems.
description: Talk given at the Workshop on Superintegrability in Classical and Quantum Systems (Montreal, 2002)