cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Thermal spectra of thin accretion disks of finite thickness around Kerr black holes
Creators: name: Zhou, Menglei
name: Abdikamalov, Askar B.
name: Ayzenberg, Dimitry
name: Bambi, Cosimo
name: Grinberg, Victoria
name: Tripathi, Ashutosh
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The analysis of the thermal spectrum of geometrically thin and optically thick accretion disks of black holes, the so-called continuum-fitting method, is one of the leading techniques for measuring black hole spins. Current models normally approximate the disk as infinitesimally thin, while in reality the disk thickness is finite and increases as the black hole mass accretion rate increases. Here we present an XSPEC model to calculate the multi-temperature blackbody spectrum of a thin accretion disk of finite thickness around a Kerr black hole. We test our new model with an RXTE observation of the black hole binary GRS 1915+105. We find that the spin value inferred with the new model is slightly higher than the spin value obtained with a model with an infinitesimally thin disk, but the difference is small and the effect is currently subdominant with respect to other sources of uncertainties in the final spin measurement.
description: 8 pages, 3 figures. v2: refereed version
Deformation of the Planetary Orbits Caused by the Time Dependent Gravitational Potential in the Universe
Creators: name: Trencevski, Kostadin
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the paper are studied the deformations of the planetary orbits caused by the time dependent gravitational potential in the universe. It is shown that the orbits are not axially symmetric and the time dependent potential does not cause perihelion precession. It is found a simple formula for the change of the orbit period caused by the time dependent gravitational potential and it is tested for two binary pulsars.
description: 7 pages
Evidence for $\gtrsim{4}$ Gyr timescales of neutron star mergers from Galactic archaeology
Creators: name: Skúladóttir, Ása
name: Salvadori, Stefania
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The nucleosynthetic site of the rapid ($r$) neutron-capture process is currently being debated. The direct detection of the neutron star merger GW170817, through gravitational waves and electromagnetic radiation, has confirmed such events as important sources of the $r$-process elements. However, chemical evolution models are not able to reproduce the observed chemical abundances in the Milky Way when neutron star mergers are assumed to be the only $r$-process site and realistic time distributions of such events are taken into account. Now for the first time, we combine all the available observational evidence of the Milky Way and its dwarf galaxy satellites to show that the data can only be explained if there are (at least) two distinct $r$-process sites: a quick source with timescales comparable to core-collapse supernovae, $t_{quick}\lesssim10^8$ yr, and a delayed source with characteristic timescales $t_{delayed}\gtrsim4$ Gyr. The delayed $r$-process source most probably originates in neutron star mergers, as the timescale fits well with that estimated for GW170817. Given the short timescales of the quick source, it is likely associated with massive stars, though a specific fast-track channel for compact object mergers cannot be excluded at this point. Our approach demonstrates that only by looking at all the available data will we be able to solve the puzzle that is the $r$-process.
description: Letter accepted in A&A, 6 pages, 3 figures
Enhancement of the Two-channel Kondo Effect in Single-Electron boxes
Creators: name: Lebanon, Eran
name: Schiller, Avraham
name: Anders, Frithjof B.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The charging of a quantum box, coupled to a lead by tunneling through a single resonant level, is studied near the degeneracy points of the Coulomb blockade. Combining Wilson's numerical renormalization-group method with perturbative scaling approaches, the corresponding low-energy Hamiltonian is solved for arbitrary temperatures, gate voltages, tunneling rates, and energies of the impurity level. Similar to the case of a weak tunnel barrier, the shape of the charge step is governed at low temperatures by the non-Fermi-liquid fixed point of the two-channel Kondo effect. However, the associated Kondo temperature TK is strongly modified. Most notably, TK is proportional to the width of the level if the transmission through the impurity is close to unity at the Fermi energy, and is no longer exponentially small in one over the tunneling matrix element. Focusing on a particle-hole symmetric level, the two-channel Kondo effect is found to be robust against the inclusion of an on-site repulsion on the level. For a large on-site repulsion and a large asymmetry in the tunneling rates to box and to the lead, there is a sequence of Kondo effects: first the local magnetic moment that forms on the level undergoes single-channel screening, followed by two-channel overscreening of the charge fluctuations inside the box.
description: 21 pages, 19 figures
Oreodera noguerai McCarty 2001
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Oreodera
Oreodera noguerai

description: 60. Oreodera noguerai McCarty, 2001
Type locality — Mexico, Mexico: Temascaltepec, Bejucos. (CASC). Distribution — Mexico (Mexico).
 Oreodera noguerai McCarty, 2001: 24, fig. 8.
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Change in the fabrics of social institutions in Nigeria: Implications for agricultural development
Creators: name: Ukpong-Umo, R. E.
name: Mboho, K. S.
name: Ukpong-Umo, R. E.
name: Mboho, K. S.
Publisher: name: Unknown
Year: 2014
Subjects: Agricultural and Food Policy

description: Every social institution serves to provide the basic social needs of people in any given society. These institutions in traditional times function in such unique ways that they were able to satisfy society’s basic needs. In Nigeria, as in other African societies, the fabrics of traditional social institutions have undergone several changes due largely to colonization. In contemporary times however, several factors including modernization, urbanization and migration have contributed to the sustenance of change in the fabrics of these institutions, which have affected several sectors of the social system, including agricultural development. This paper examines the nature and role of traditional social institutions in Nigerian society vis-à-vis the changes that have occurred over time. The five basic social institutions, namely, the family, religion, education, government, and economy are the focus in this paper. It was evident that changes occurred in these institutions and these are discussed in relation to their functions as well as implications for agricultural development. The paper also suggests the way forward.
Conflict management strategies to reduce consequences on livelihoods on Fulani cattle herders and farmers in Kabba-Bunu, Kogi State, Nigeria
Creators: name: Kehinde, E. A.
name: Kehinde, E. A.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Farm Management
subject: Livestock Production/Industries
subject: Farmers
subject: Fulani
subject: Conflict Management
subject: Crops
subject: Cattle
subject: Losses

description: Farmers and Fulanis are in recent times becoming more frequently involved in land resources use conflicts. A lot of lives (human and cattle) as well as crops and properties are lost to this conflict on a regular basis. It is due to these profound losses that the study aimed at investigating the root causes; determine the consequences of the conflict on the respondents and ascertain the management strategies in use to curb or reduce the conflict. A total of 486 respondents were randomly selected for the study while a structured questionnaire was used for data collection. Descriptive statistics and the logit regression were used to analyze the data. The results shows that majority (76.4%) of the farmers interviewed are middle aged, that is between 40-59 years while majority (76.7%) of the Fulanis are youths between 20 and 39 years. The result further shows that majority (70.0%) of farmers and 47.4% of Fulanis said destruction of crops/animals was the major source of conflict. The results on effect of conflict on the losses incurred by the farmer’s shows that all the variables had direct relationship with conflict. However, only the loss of crops (2.047) and loss of other properties (1.016) had significant effect on conflict at p < 0.05 and p< 0.01, respectively. The results on the effect of conflict on the losses incurred by the Fulanis show that only loss of cattle (1.003) is statistically significant at p < 0.05. It has a direct relationship with the Fulanis conflict with the farmers. The result of the conflict resolution methods shows that majority (90.3% and 72.3%) of farmers and Fulanis, respectively, agree that payment of compensation is the best way of settling conflict between farmers and Fulanis. The results on the selected conflict management strategies indicate that majority (49.7%) of farmers and 52.2% of Fulanis hold the view that the use of traditional rulers in conflict resolution is the most preferred. On the basis of these findings, it was recommended among others that: Existing laws on grazing routes should be reviewed and strengthened by the National Assembly and various State Assemblies. The Nigerian Agricultural Insurance Corporation (NAIC) and other insurance organizations should devise insurance policies as strategies of reaching farmers and Fulanis to ensure support whenever they suffer losses which will go a long way to mitigate their sufferings and Government should ensure that adequate compensation is paid to farmers and Fulanis who suffer losses.
A fractional corner anomaly reveals higher-order topology
Creators: name: Peterson, Christopher W.
name: Li, Tianhe
name: Benalcazar, Wladimir A.
name: Hughes, Taylor L.
name: Bahl, Gaurav
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Spectral measurements of boundary localized in-gap modes are commonly used to identify topological insulators via the bulk-boundary correspondence. This can be extended to high-order topological insulators for which the most striking feature is in-gap modes at boundaries of higher co-dimension, e.g. the corners of a 2D material. Unfortunately, this spectroscopic approach is not always viable since the energies of the topological modes are not protected and they can often overlap the bulk bands, leading to potential misidentification. Since the topology of a material is a collective product of all its eigenmodes, any conclusive indicator of topology must instead be a feature of its bulk band structure, and should not rely on specific eigen-energies. For many topological crystalline insulators the key topological feature is fractional charge density arising from the filled bulk bands, but measurements of charge distributions have not been accessible to date. In this work, we experimentally measure boundary-localized fractional charge density of two distinct 2D rotationally-symmetric metamaterials, finding 1/4 and 1/3 fractionalization. We then introduce a new topological indicator based on collective phenomenology that allows unambiguous identification of higher-order topology, even in the absence of in-gap states. Finally, we demonstrate the higher-order bulk-boundary correspondence associated with this fractional feature by using boundary deformations to spectrally isolate localized corner modes where they were previously unobservable.
Secular Eccentricity Oscillations in Axisymmetric Disks of Eccentric Orbits
Creators: name: Fleisig, Jacob
name: Zderic, Alexander
name: Madigan, Ann-Marie
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Massive bodies undergo orbital eccentricity oscillations when embedded in an axisymmetric disk of smaller mass orbits. These eccentricity oscillations are driven by secular torques that seek to equalize the apsidal precession rates of all the orbits in the disk. We investigate this mechanism within the context of detached objects in the outer Solar System, but we find that the oscillation timescale is too long for it to be dynamically important. It could however be interesting for phenomenon a bit farther from home; namely, feeding supermassive blackholes and polluting the surfaces of white dwarf stars.
description: Accepted for publication
Conformal quantum effects and the anisotropic singularities of scalar-tensor theories of gravity
Creators: name: Gunzig, Edgard
name: Saa, Alberto
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show that the inclusion of a term $C_{abcd}C^{abcd}$ in the action can remove the recently described anisotropic singularity occurring on the hypersurface $F(ϕ)=0$ of scalar-tensor theories of gravity of the type $$ S=\int d^4x \sqrt{-g} {F(ϕ)R - \partial_aϕ\partial^aϕ-2V(ϕ)}, $$ preserving, by construction, all of their isotropic solutions. We show that, in principle, a higher order term of this type can arise from considerations about the renormalizability of the semiclassical approach to the theory. Such result brings again into consideration the quintessential models recently proposed based in a conformally coupled scalar field ($F(ϕ)=1-{1/6}ϕ^2$) with potential $V(ϕ)=\frac{m}{2}ϕ^2 -\fracΩ{4}ϕ^4$, that have been discharged as unrealistic precisely by their anisotropic instabilities on the hypersurface $F(ϕ)=0$.
description: 12 pages, to appear in the proceedings of Peyresq 8
Constraints to climate change adaptation among Cassava farmers in Abia State, Nigeria
Creators: name: Nwaobiala, C. U.
name: Nottidge, D. O
name: Nwaobiala, C. U.
name: Nottidge, D. O
Publisher: name: Unknown
Year: 2014
Subjects: subject: Environmental Economics and Policy
subject: Farm Management
subject: Constraints
subject: Climate change
subject: Adaptation
subject: Cassava Farmers

description: Climate change is currently a major human security issue globally which poses threats to agriculture, malnutrition, shelter, security, disease and poverty in developing countries. This paper identified constraints to climate change adaptation among cassava farmers in Abia State, Nigeria. A multistage random sampling technique was used in the selection of agricultural blocks, cells and cassava farmers. A structured questionnaire was administered to 120 randomly selected cassava farmers. The data was analyzed using descriptive statistics and inferential analysis (Varimax factor analysis). The result of study showed that a good proportion (55%) of the farmers were men, with mean age of 45.5 years, 43.3% acquired secondary education and cultivated on mean farm size of 1.1 hectares. The result also showed that cassava farmers in the study area used improved cassava varieties ( = 3.6), mixed cropping ( = 3.5), early planting ( = 3.4) and fertilizer application ( = 3.2) as adaptation strategies to cope with climate change. The constraints to climate change adaptation among cassava farmers include; limited availability of farmland, un-inherited land ownership, non-availability of farm inputs, non availability of credit facilities, lack of awareness on coping or resilience, limited access to weather forecast, government irresponsiveness to resultant effect of climate change, limited access and high cost of labour. It is therefore recommended that regularly trainings on climate change and variability, accessibility to meteorological data, steady availability of improved cassava varieties to farmers and review of Land Use Act of 1990 in Nigeria to increase access to land to farmers were advocated.
Additional file 2 of What impact do chronic disease self-management support interventions have on health inequity gaps related to socioeconomic status: a systematic review
Creators: name: Hardman, Ruth
name: Begg, Stephen
name: Spelten, Evelien
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Marine Biology
subject: Science Policy

description: Additional file 2.
Warm Decaying Dark Matter and the Hubble Tension
Creators: name: Blinov, Nikita
name: Keith, Celeste
name: Hooper, Dan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: If a fraction of the dark matter is unstable and decays into dark radiation at around the time of matter-radiation equality, it could impact the expansion history of the universe in a way that helps to ameliorate the long-standing tension between the locally measured value of the Hubble constant and the value inferred from measurements of the cosmic microwave background and baryon acoustic oscillations (assuming standard $Λ$CDM cosmology). If this component of decaying dark matter is cold, however, it will modify the evolution of the gravitational potentials, leading to inconsistencies with these same data sets. With this in mind, we consider here a component of decaying warm dark matter, with a free-streaming length that is long enough to remain consistent with existing data. We study the background and perturbation evolution of warm decaying dark matter, and use cosmological data to constrain the mass, abundance and decay rate of such a particle. We find that a component of warm decaying dark matter can significantly reduce the tension between local and cosmological determinations of the Hubble constant.
description: 33 pages, 8 figures. References added; matches published version
Decentralized and Asymmetric Multi-Agent Learning in Construction Sites
Creators: name: Miron, Yakov
name: Navon, Dan
name: Goldfracht, Yuval
name: Di Castro, Dotan
name: Klein, Itzik
Publisher: name: arXiv
Year: 2024
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Multi-agent collaboration involves multiple participants working together in a shared environment to achieve a common goal. These agents share information, divide tasks, and synchronize their actions. Key aspects of multi agent collaboration include coordination, communication, task allocation, cooperation, adaptation, and decentralization. On construction sites, surface grading is the process of leveling sand piles to increase a specific area's height. In this scenario, a bulldozer grades while a dumper allocates sand piles. Our work aims to utilize a multi-agent approach to enable these vehicles to collaborate effectively. To this end, we propose a decentralized and asymmetric multi-agent learning approach for construction sites (DAMALCS). We formulate DAMALCS to reduce expected collisions for operating vehicles. Therefore, we develop two heuristic experts capable of achieving their joint goal optimally by applying an innovative prioritization method. In this approach, the bulldozer's movements take precedence over the dumper's operations, enabling the bulldozer to clear the path for the dumper and ensure continuous operation of both vehicles. Since heuristics alone are insufficient in real-world scenarios, we utilize them to train AI agents, which proves to be highly effective. We simultaneously train the bulldozer and dumper agents to operate within the same environment, aiming to avoid collisions and optimize performance in terms of time efficiency and sand volume handling. Our trained agents and heuristics are evaluated in both simulation and real-world lab experiments, testing them under various conditions, such as visual noise and localization errors. The results demonstrate that our approach significantly reduces collision rates for these vehicles.
Effect of displacement on livelihood activities of rural dwellers within Omo forest reserve of Ogun State, Nigeria
Creators: name: Tijani, F. S.
name: Aluko, O. J.
name: Tijani, F. S.
name: Aluko, O. J.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Community/Rural/Urban Development
subject: Effect of displacement
subject: livelihood activities
subject: rural dwellers

description: The study assessed the effect of displacement on livelihood activities of the rural dwellers within Omo Forest Reserve in Ogun State. Multistage sampling procedure was used to select 108 respondents. Data on livelihood activities, sources of information, effect of displacement on livelihood activities as well as constraints faced by respondents due to displacement with respect to livelihood activities were collected through structured interview schedule. Frequency counts, percentages, Chi-square, PPMC and t-test were used to analyze the data. Results reveal that most (67.5%) of the respondents were below 50 years, married (58.5%), males (72.8%) and 89.8% had educational level up to secondary school. Little above half (53.7%) were indigenes and 97.2% had experienced displacement thrice or less. Change in government policies was regarded as the major cause (89.9%) of the displacement. Displacement reduces both cash and arable crop production most and the effect was high on majority (68.5%) of the respondents. Major constraints to involvement in livelihood activities were transportation ( =2.98) and fear of untimely displacement ( =2.89). There were significant relationships between marital status (χ2=18.454), years of formal education (χ2=18.659), effect of livelihood activities (r=- 0.460,); causes of displacement (r=-0.460); constraint to involvement (r=-0.329) and level of involvement in livelihood activities. Displacement had negative implications on the respondents’ livelihood activities. It is recommended that participatory and sustainable approaches that would resolve displacement issues should be designed so as to prevent conflict and disruption of livelihood.
Global Existence of Bell's Time-Inhomogeneous Jump Process for Lattice Quantum Field Theory
Creators: name: Georgii, Hans-Otto
name: Tumulka, Roderich
Publisher: name: arXiv
Year: 2003
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60J75; 81T25

description: We consider the time-inhomogeneous Markovian jump process introduced by John S. Bell [Phys.Rep. 137, 49] for a lattice quantum field theory, which runs on the associated configuration space. Its jump rates, tailored to give the process the quantum distribution $|Ψ_t|^2$ at all times $t$, typically exhibit singularities. We establish the existence of a unique such process for all times, under suitable assumptions on the Hamiltonian or the initial state vector $Ψ_0$. The proof of non-explosion takes advantage of the special role of the $|Ψ_t|^2$ distribution.
description: 16 pages LaTeX, no figures; v2: references added, minor extension of the introduction
Information and training needs assessment of women vegetable farmers on organic agriculture in Akinyele local government area of Oyo State
Creators: name: Meludu, Nkiru T.
name: Okanlawon, Oluwatoyin M.
name: Meludu, Nkiru T.
name: Okanlawon, Oluwatoyin M.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: Women farmer
subject: training need
subject: information need
subject: organic agriculture

description: Organic agriculture (OA) is a production system designed to sustain the health of soils, ecosystems and people which relies on ecological processes, biodiversity and cycles adapted to local conditions, rather than the use of chemical inputs with adverse effects. This study considered information and training needs of women vegetable farmers on organic agricultural practice in Akinyele Local government area of Oyo state. Multistage sampling procedure was used to select a total of 120 respondents for this study. Interview schedule was utilised to gather information on respondents’ perception, information and training needs. Data collected were analyzed using both descriptive and inferential statistics. There was an unfavourable perception (51.7%) about organic agricultural practices. There was a low information need (57.5%) with a high training need (59.2%)A significant relationship existed between training need and age (r =0.23; p =0.01), then between training need and family size (r =0.25; p =0.01). Also there was a significant relationship between training need and respondents’ perception (r=0.34;p=0.00 ). The study therefore recommends latest training on organic agricultural principles and guidelines for women vegetable farmers in order to make organic vegetable production sustainable, hence improving income and food security.
One-village one-product (OVOP): A tool for sustainable rural transformation in Nigeria
Creators: name: Issa, F. O.
name: Lawal, A. O.
name: Issa, F. O.
name: Lawal, A. O.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Community/Rural/Urban Development
subject: One village-one product
subject: rural development
subject: rural transformation
subject: Nigeria

description: One Village One Product (OVOP) is a participatory rural development approach focusing on local specialties. It is a strategy to develop value based on local available resources by the local people. The principal actors are the inhabitants of a community, and it is neither a project nor an undertaking of top-down nature, imposed by and implemented under the auspices of external entities like the central government or donor agencies. This paper demonstrates how the concept of OVOP can be used to effectively mobilize the rural populace in Nigeria for enhanced productivity through effective participation. First, the paper x-rays the fundamental principles of OVOP. It further dwells on the practices, drawing examples from nations where the concept has been used successfully to aid rural transformation. The key successes of OVOP were also discussed, while the challenges and issues relating to the propagation of the concept were highlighted drawing implications for Nigeria. The paper recommends that the concept of OVOP be adopted and factored into the current Agricultural Extension Transformation Agenda (AETA) in order to enhance sustainable rural transformation in Nigeria.
Participatory intervention using appreciative inquiry: Options for institute of agricultural research and training (IART&T) adopted villages
Creators: name: Lawal, B. O.
name: Ayoola, O. T.
name: Lawal, B. O.
name: Ayoola, O. T.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agricultural and Food Policy
subject: Research Methods/ Statistical Methods
subject: Participatory approaches
subject: opportunities
subject: assets
subject: appreciative inquiry
subject: adopted village

description: There is extensive use of participatory approaches to research and development with the aim of involving farmers. These include Participatory Technology Development, Participatory Rural Appraisal and Farmer Field Schools. These approaches have been criticized for focusing on deficits, rather than the assets of the communities. Appreciative Inquiry tool is now being integrated into participatory research processes. The study aimed at using participatory tools and appreciative inquiry to enhance farmers’ understanding of opportunities available to them and the interventions that should be put in place to maximize these strengths to enhance food security in the adopted villages of the Institute of Agricultural Research and Training. The results showed that Appreciative inquiry is complementary to the other participatory approaches and that rural communities have unique resources and assets that can enhance food security. The rural communities were able to establish their capabilities, turn them into opportunities and map out interventions for improved livelihoods. It showed that using this approach is a pathway for identifying and mobilizing communities’ assets and building their capacities to be active players in determining their destiny, based on their unique circumstances. The paper concluded that focusing more on what works in a community can lead to positive changes. Integrating appreciative inquiry into participatory processes is an excellent way of generating new ideas and action for food security and more sustainable livelihoods. A paradigm shift toward appreciative modes of probing, planning, and intervention for sustainable development was recommended.
Type Ia Supernovae in semi-detached binary systems
Creators: name: Fedorova, A. V.
name: Tutukov, A. V.
name: Yungelson, L. R.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have considered scenarios for the evolution of close binaries resulting in the formation of semi-detached systems in which a white dwarf can accumulate Chandrasekhar mass by accretion from a main-sequence or subgiant companion with $M\sim 2 M_\odot$. These white dwarfs, probably, explode as type Ia supernovae or collapse with formation of neutron stars. We have carried out a population synthesis study for these systems and have estimated the occurrence rate of such events in the Galaxy, depending on the parameter of common envelopes, mass-exchange rate in the binary, reaction of the main-sequence component on accretion of helium in the intervening phase of evolution. We have found that the model occurrence rate of SNe Ia in semi-detached systems is $\simeq 0.2 \times 10^{-3}$ yr$^{-1}$, i. e., it does not exceed $\sim 10%$ of the observational estimate of the Galactic occurrence rate of SNe Ia.
description: Astronomy Letters, 2003, vol.29, no.12, in press. 22 pages, including 2 tables, 5 figures
Use of local media approaches in agriculture and rural development activities in Akwa Ibom State
Creators: name: Etuk, U. R.
name: Akpabio, I. A.
name: Etuk, U. R.
name: Akpabio, I. A.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Local Media Approaches
subject: Agricultural and Rural Development activities

description: This study analysed Local media approaches in agricultural and rural development activities in the study area. Multi stage sampling was employed in the study. TaroYamane formula was used to determine the sample size for the study, hence a total of 379 rural farmers randomly selected and interviewed across the six Agricultural Development Programme zones in Akwa Ibom State. Findings show that the most commonly used local communication instrument for communication in agricultural and rural development activities in the study were boundary trees, injunction palm frond and scrotal hernia and were ranked 1st, 2nd and 3rd. Using factor analysis, the patterns of local media approaches and agricultural and rural development activities data sets were collapsed separately for parsimonious factors. The analysis yielded 4 critical factors for local media approach (cultural and festival factor, folk medium factor, social group factor and personal contact factor) while agricultural and rural development activities yielded 5 critical factors (agronomic activity factor, health sensitization factor, infrastructural development factor entrepreneurial development factor and processing development factor). There was a strong and positive relationship between local media approaches used and agricultural and rural development activities .Integration of local media and modern media is advocated.
Temperature-dependent fluorescence emission spectra of acrylic (PMMA) and tetraphenyl butadiene (TPB) excited with UV light
Creators: name: Corning, J. M.
name: Araujo, G. R.
name: Di Stefano, P. C. F.
name: Pereymak, V.
name: Pollmann, T.
name: Skensved, P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Acrylic (poly(methyl methacrylate) or PMMA) is commonly used as a vessel to hold scintillating liquids in rare-event searches. Certain types of PMMA can fluoresce with a low efficiency at room temperature. We have investigated the fluorescence spectra under 280nm ultraviolet (UV) excitation of the PMMA used in the DEAP dark matter search at various low temperatures. Fluorescence of this PMMA is observed, with an increasing intensity as the sample is cooled from a temperature of 300K down to 4K. The common wavelength-shifter tetraphenyl butadiene (TPB) is also measured for use as a reference.
description: LIDINE 2019, 5 pages, 3 figures
Value orientation issues affecting adoption behaviour of food crop farmers in Ondo State, Nigeria
Creators: name: S. D. Y., Alfred
name: Omololu, O.
name: S. D. Y., Alfred
name: Omololu, O.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Crop Production/Industries
subject: Farm Management
subject: Value
subject: Orientation
subject: Adoption
subject: Behaviour
subject: Farmers

description: The study investigated value orientation issues that affect the adoption behaviour of food crop farmers in Ondo state, Nigeria. A multistage sampling technique was used to identify 120 respondents used for the study. Data for the study was collected using an interview schedule and analyzed using chi-square and Pearson Product Moment Correlation. Value orientation was measured using the Portrait Values Questionnaire (PVQ) scale. The study showed value orientations to be an issue or concept that affects not only agricultural adoption, but which if understood can serve as a tool for the prediction of behaviour among farmers and individuals in society. The results showed that socio-economic characteristics of respondents had a significant relationship with their value orientations and value orientations of the respondents also had a significant relationship with their adoption of agricultural technologies. The predominant value orientations of rural farmers of Ondo state were harmony with nature for man-nature orientation (44.2%), good and evil for human-nature orientation (52.5%), present (40%) closely followed by past (37.5%) for time orientation, collateral for relational orientation (59.2%), and being-in-becoming for activity orientation(37.5%). The percentage average rate of adoption of agricultural technologies studied was (48.7%). The effects of value orientations on adoption of agricultural technologies were noticed in only five of the technologies tested, and were shown to be negative and significant. The affected technologies included: pest control in food crop farm, use of herbicides, insecticides and fungicides, improved fertilizer application methods, row spacing and the use of harvesters. Implications are that further studies by agricultural extension personnel, on value orientations as a tool for predicting or influencing adoption level of farmers, as well as other behaviours will enhance their productivity and effectiveness. Government through the Agricultural Development Project can also run studies to profile regions and states according to value orientations. This will aid in the value re-orientation activities of several development efforts in the country.
Εξοικονόμηση ενέργειας ως η καλύτερη μορφή ανανεώσιμης πηγής ενέργειας
Creators: name: Μούλιας, Νεκτάριος Αλέξανδρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Ενέργεια
Αποθήκευση
Εξοικονόμηση
Energy
Storage
Saving

description: Η εργασία αναλύει και παρουσιάζει την κύρια θεωρία η οποία αντιπροσωπεύει τις ανανεώσιμες πηγές ενέργειας που είναι διαθέσιμες σήμερα. Σκοπός της εργασίας είναι να αναδείξει την αξία που έχει η έννοια της εξοικονόμησης ενέργειας καθαρά από την άποψη της χρήσης της ενέργειας αλλά και του τρόπου ζωής και της καθημερινότητας. Η έννοια της σπατάλης ενέργειας θα συνεχίσει να υπάρχει ακόμα και με την ανακάλυψη φθηνών πηγών ανανεώσιμης ενέργειας και επομένως, το πρόβλημα της σπατάλης, ή η σημασία της εξοικονόμησης ενέργειας θα συνεχίσει να υπάρχει στα ανθρώπινα γίγνεσθαι. Στο τέλος της εργασίας παρουσιάζονται χρήσιμα συμπεράσματα από την συσχέτιση της εξοικονόμησης ενέργειας με τις ανανεώσιμες πηγές ενέργειας.
description: The paper analyzes and presents the main theory that represents the renewable energy sources available today. The aim of the work is to highlight the value of the concept of energy saving purely from the point of view of the use of energy but also of the way of life and everyday life. The concept of wasting energy will continue to exist even with the discovery of cheap renewable energy sources and therefore the problem of waste, or the importance of energy saving will continue to exist in human beings. At the end of the paper, useful conclusions are drawn from the association of energy savings with renewable energy sources.
Oreodera occulta Monne & Fragoso 1988
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Oreodera
Oreodera occulta

description: 61. Oreodera occulta Monné & Fragoso, 1988
Type locality — Brazil, Mato Grosso do Sul: Miranda. (MNRJ). Distribution — Bolivia, Brazil (Mato Grosso do Sul), Argentina (Formosa).
 Oreodera occulta Monné & Fragoso, 1988: 823, fig. 15; Julio et al., 2000: 45 (holotype).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Additional file 1 of What impact do chronic disease self-management support interventions have on health inequity gaps related to socioeconomic status: a systematic review
Creators: name: Hardman, Ruth
name: Begg, Stephen
name: Spelten, Evelien
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Marine Biology
subject: Science Policy

description: Additional file 1.
Η περάτωση της κύριας ανάκρισης στα κακουργήματα της νομοθεσίας για τα ναρκωτικά»
Creators: name: Τσιόγκα, Χαρούλα Θεοδώρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Ναρκωτικά
Κύρια ανάκριση
Απευθείας παραπομπή στο ακροατήριο με κλητήριο θέσπισμα
Drugs
Main investigation
Direct referral to the hearing by summons

description: Στην παρούσα εργασία αναλύεται το δικονομικό πλαίσιο, μετά την ουσιαστική περάτωση της κύριας ανάκρισης, στα κακουργήματα του νόμου περί εξαρτησιογόνων ουσιών (Ν. 4139/2013). Στην εισαγωγή παρουσιάζεται συνοπτικά η έννοια και ο σκοπός της ανάκρισης. Στο πρώτο κεφάλαιο αναπτύσσονται οι διαχρονικά ισχύουσες ρυθμίσεις για την ουσιαστική περάτωση της κυρίας ανάκρισης από τα έτη 2006-2019. Στο δεύτερο κεφάλαιο γίνεται κριτική επισκόπηση των διατάξεων των άρθρων 308Α του προϊσχύοντος Κώδικα Ποινικής Δικονομίας πριν και μετά τον Ν. 4509/2017 και του 309 του ισχύοντος πλέον Κώδικα Ποινικής Δικονομίας. Στο τρίτο κεφάλαιο επισημαίνονται οι διαφορές μεταξύ των άρθρων 309 ΚΠΔ και 43 του Ν. 4139/2013. Το τέταρτο κεφάλαιο εμπεριέχει τον τρόπο επιβολής προσωρινής κράτησης ή περιοριστικών όρων παράλληλα με την παραπομπή και καταδεικνύει ποιο είναι το αρμόδιο όργανο. Τέλος, η παρούσα εργασία κλείνει με τα τελικά συμπεράσματα, όπου τονίζεται η άποψη ότι το νέο άρθρο 309 ΚΠΔ κατισχύει του άρθρου 43 Ν. 4139/2013, στα ζητήματα που συναντάται με αυτό, ως προφανώς νεότερη ρύθμιση, η οποία σαφώς αποτυπώνει την βούληση του νομοθέτη, ως προς το ζήτημα.
description: The present paper analyzes the procedural framework of the drug prohibition law felonies (L. 4139/2013), right after the substantial termination of the main investigation. In the introductional part of this paper the meaning and purpose of the interrogation, is clarified. In the first chapter the intertemporal law on the termination of the main interrogation between the years 2006-2019, is explained. In the second chapter the subject being studied is the critical review of the provisions of articles 308A of the pre-existing Criminal Procedure Code before and after Law 4509/2017 and 309 of the Criminal Procedure Code, which is currently effective. Subsequently, the differences between articles 309 of the Criminal Procedure Code and 43 of Law 4139/2013, is examined in the third chapter. In addition, the fourth chapter indicates how to impose temporary detention or restrictive conditions along with court referral and demonstrates the authority in charge. Finally this study is finished by highlighting that the new Article 309 of the Criminal Procedure Code prevails over Article 43 Law 4139/2013, in reference to the encountering issues, as an apparently newer regulation, which clearly reflects the legislator's will in this regard.
description: Σε συνεργασία με: Πανεπιστήμιο Λευκωσίας (Κύπρος)
NOBANK MOLIYA TASHKILOTLARNING IQTISODIYOTDA TUTGAN O'RNI
Creators: name: Raimov, X.M.
Publisher: name: Zenodo
Year: 2025

description: Nobank moliya tashkilotlarning iqtisodiyotda tutgan o‘rni. Nobank kredit tashkiloti — bank operatsiyalarining cheklangan ro‘yxatini amalga oshirishi mumkin bo‘lgan kredit tashkiloti So‘nggi o‘n yil ichida nobank tashqari moliyaviy vositachilarning jahon moliyasiga ta'siri sezilarli darajada oshdi va jahon pandemiyasi sektor yanada ehtiyotkorlik bilan tartibga solish va rivojlanishga muhtojligini ko‘rsatdi. Nobank moliyaviy vositachilar moliyaviy xizmatlarni taqdim etadilar, masalan: investitsiya (individual va jamoaviy), brokerlik, moliyaviy maslahat, pul o‘tkazmalari.
Suprathermal Proton Spectra at Interplanetary Shocks in Hybrid Simulations
Creators: name: Young, Matthew A.
name: Vasquez, Bernard J.
name: Kucharek, Harald
name: Lugaz, Noé
Publisher: name: arXiv
Year: 2020
Subjects: subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Interplanetary shocks are one of the proposed sources of suprathermal ion populations (i.e., ions with energies of a few times the solar wind energy). Here, we present results from a series of three-dimensional hybrid simulations of collisionless shocks in the solar wind. We focus on the influence of the shock-normal angle, $θ_{Bn}$, and the shock speed, $V_s$, on producing protons with energies a few to hundreds of times the thermal energy of the upstream plasma. The combined effects of $θ_{Bn}$ and $V_s$ result in shocks with Alfvén Mach numbers in the range 3.0 to 6.0 and fast magnetosonic Mach numbers in the range 2.5 to 5.0, representing moderate to strong interplanetary shocks. We find that $θ_{Bn}$ largely organizes the shape of proton energy spectra while shock speed controls acceleration efficiency. All shocks accelerate protons at the shock front but the spectral evolution depends on $θ_{Bn}$. Shocks with $θ_{Bn} \geq 60^\circ$ produce isolated bursts of suprathermal protons at the shock front while shocks with $θ_{Bn} \leq 45^\circ$ create suprathermal beams upstream of the shock. Downstream proton energy spectra have exponential or smoothed broken power-law forms when $θ_{Bn} \geq 45^\circ$, and a single power-law form when $θ_{Bn} \leq 30^\circ$. Protons downstream of the strongest shocks have energies at least 100 times the upstream thermal energy, with $θ_{Bn} \leq 30^\circ$ shocks producing the highest energy protons and $θ_{Bn} \geq 60^\circ$ shocks producing the largest number of protons with energies at least a few times the thermal energy.
description: 20 pages; 10 figures
Growth Empirics: Convergence Study By Panel Data Analysis
Creators: name: Suh, Jinkyo
name: Suh, Jinkyo
Publisher: name: Unknown
Year: 2001
Subjects: subject: Financial Economics
subject: economic growth
subject: Solow model
subject: convergence
subject: panel data

description: This paper examines recent convergency issues in economic on growth. Taking the recent works by M-R-W and Islam as its starting point this paper analyzes how these results change with the adoption of the panel data approach. The regression equation used in the study of convergence is reformulated into a dynamic panel model with individual country effects and is estimated by the panel data procedures. It hardly seems to say that there exists a reasonable evidence of a rapid convergence considering the time period required for the convergence
Searching for small primordial black holes in planets, asteroids and here on Earth
Creators: name: Dai, De-Chang
name: Stojkovic, Dejan
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Small primordial black holes could be captured by rocky planets or asteroids, consume their liquid cores from inside and leave hollow structures. We calculate the surface density and surface tension of a hollow structure around a black hole and compare them with the density and compressive strength of various materials that appear in nature to find the allowed parameter space. For example, granite or iron can support a hollow asteroid/planetoid/moon of the size of up to $0.1 R_\oplus$. Along the same lines, future civilizations might build spherical structures around black holes to harvest their energy. Using the strongest material that we currently know how to make (multiwall carbon nanotube), to withstand gravity of one solar mass black hole, the shell must be constructed at distances larger than $10^4 R_\odot$. Alternatively, a fast black hole can leave a narrow tunnel in a solid object while passing through it. For example, a $10^{22}$g black hole should leave a tunnel with a radius of $0.1$ micron, which is large enough to be seen by an optical microscope. We could look for such micro-tunnels here on Earth in very old rocks, or even glass or other solid structures in very old buildings. While our estimate gives a very small probability of finding such tunnels, looking for them does not require expensive equipment and long preparation, and the payoff might be significant.
description: 5 pages, 5 figures, accepted for publication in Physics of the Dark Universe
Enhanced Dimer Relaxation in an Atomic/Molecular BEC
Creators: name: Braaten, Eric
name: Hammer, H. -W.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We derive a universal formula for the rate constant βfor relaxation of a shallow dimer into deeply-bound diatomic molecules in the case of atoms with a large scattering length a. We show that βis determined by a and by two 3-body parameters that also determine the binding energies and widths of Efimov states. The rate constant βscales like \hbar a/m near the resonance, but the coefficient is a periodic function of ln(a) that may have resonant enhancement at values of a that differ by multiples of 22.7.
description: 5 pages, revtex4, 2 PS figures, title changed, final version