cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Network inference using asynchronously updated kinetic Ising Model
Creators: name: Zeng, Hong-Li
name: Aurell, Erik
name: Alava, Mikko
name: Mahmoudi, Hamed
Publisher: name: arXiv
Year: 2010
Subjects: subject: Computation (stat.CO)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Network structures are reconstructed from dynamical data by respectively naive mean field (nMF) and Thouless-Anderson-Palmer (TAP) approximations. For TAP approximation, we use two methods to reconstruct the network: a) iteration method; b) casting the inference formula to a set of cubic equations and solving it directly. We investigate inference of the asymmetric Sherrington- Kirkpatrick (S-K) model using asynchronous update. The solutions of the sets cubic equation depend of temperature T in the S-K model, and a critical temperature Tc is found around 2.1. For T < Tc, the solutions of the cubic equation sets are composed of 1 real root and two conjugate complex roots while for T > Tc there are three real roots. The iteration method is convergent only if the cubic equations have three real solutions. The two methods give same results when the iteration method is convergent. Compared to nMF, TAP is somewhat better at low temperatures, but approaches the same performance as temperature increase. Both methods behave better for longer data length, but for improvement arises, TAP is well pronounced.
description: 6 pages, 4 figures
A reduced-order power-system dynamical model and applications in design and monitoring of power systems
Creators: name: Chen, Bo
Publisher: name: University of British Columbia
Year: 2019

description: The widespread integration of distributed energy resources (DERs) in the future power system is likely to cause large and frequent excursions from its steady state. Such circumstances call for systematic methods to design DER controllers toward system-level goals and to estimate unexpected changes. We address these challenges via the development of a reduced-order power system dynamical model in this thesis. First, we develop a reduced second-order power-system dynamical model that accounts for locational effects of load disturbances on system frequency. The locational aspects are retained in the proposed model by incorporating linearized power-flow balance into differential equations that describe synchronous-generator dynamics. Individual synchronous-generator frequency dynamics are then combined into a single aggregate frequency state via weighting factors that can be tuned to maximize the accuracy of the reduced-order model. The proposed reduced-order model is general in the sense that its parameters are related to those of the original full-order model in analytical closed form, so that it can be constructed easily for different systems. Time-domain simulations demonstrate the accuracy of the reduced-order model with various choices of weighting factors and highlight the effect of load disturbance location on aggregate-frequency dynamics. The reduced-order model offers the basic foundation on which DER controllers can be systematically designed to meet grid-level aims. Via a transfer-function representation of the reduced-order model, we relate, in analytical closed form, DER controller parameters to system steady-state and dynamic frequency response. Furthermore, time-domain simulations demonstrate that we can design DER controller parameter in order to meet system frequency-response performance requirements. By leveraging the reduced-order power system dynamical model developed earlier, we propose an optimization-based method to detect the occurrence, estimate the magnitude, and identify the location of load changes. The proposed method relies on measurements of only frequency at the output of synchronous generators along with the reduced-order model that captures locational effects of load disturbances on generator frequency dynamics. The sparsity structure of load-change disturbances is leveraged so that fewer measurements are needed to estimate load changes. Furthermore, a convex relaxation of the problem ensures that it can be solved online in a computationally efficient manner.
Majorana edge states in interacting one-dimensional systems
Creators: name: Gangadharaiah, Suhas
name: Braunecker, Bernd
name: Simon, Pascal
name: Loss, Daniel
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We show that one-dimensional electron systems in proximity of a superconductor that support Majorana edge states are extremely susceptible to electron-electron interactions. Strong interactions generically destroy the induced superconducting gap that stabilizes the Majorana edge states. For weak interactions, the renormalization of the gap is nonuniversal and allows for a regime, in which the Majorana edge states persist. We present strategies how this regime can be reached.
description: 4.2 page, 1 figure
Dipole representation of half-filled Landau level
Creators: name: Predin, S.
name: Knežević, A.
name: Milovanović, M. V.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We introduce a variant of dipole representation for composite fermions in a half-filled Landau level, taking into account the symmetry under exchange of particles and holes. This is implemented by a special constraint on composite fermion and composite hole degree of freedom (of an enlarged space), that makes the resulting composite particle, dipole, a symmetric object. We study an effective Hamiltonian, that commutes with the constraint on the physical space, and fulfills the requirement for boost invariance on the Fermi level. The calculated Fermi liquid parameter F2 is in a good agreement with numerical investigations in [Phys. Rev. Lett. 121, 147601 (2018)].
description: 9 pages, 4 figures
The Nonlinear Stability of the Trivial Solution to the Maxwell-Born-Infeld System
Creators: name: Speck, Jared
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: Primary: 35A01, Secondary: 35L03, 35Q60, 78M99

description: In this article, we use an electromagnetic gauge-free framework to establish the existence of small-data global solutions to the Maxwell-Born-Infeld (MBI) system on the Minkowski space background in 1 + 3 dimensions. Because the nonlinearities in the system satisfy a version of the null condition, we are also able to show that these solutions decay at exactly the same rates as solutions to the linear Maxwell-Maxwell system. In addition, we show that on any Lorentzian manifold, the MBI system is hyperbolic in the interior of the field-strength regime in which its Lagrangian is real-valued.
description: A few additional comments and some references were added. Some typos were corrected. 73 pages
title: Ð Ð°Ð±Ð¾ÑÐ° ÑÐµÐ´Ð°ÐºÑÐ¾ÑÐ°-Ð¼Ð°ÑÐºÐµÑÐ¾Ð»Ð¾Ð³Ð° Ð½Ð°Ð´ ÑÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸ÐµÐ¹ Ð¼Ð°ÑÐºÐµÑÐ¸Ð½Ð³Ð¾Ð²Ð¾Ð¹ ÑÑÑÐ°ÑÐµÐ³Ð¸Ð¸ Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ ÑÑÑÐ¸ÑÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿ÑÑÐµÐ²Ð¾Ð´Ð¸ÑÐµÐ»Ñ Ð¿Ð¾ Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³Ñ "ÐÐµÑÐµÑÐ±ÑÑÐ³ 24"
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: The work of a marketing editor on the implementation of a marketing strategy on the example of a tourist guide to St. Petersburg "Petersburg 24"
Creators: name: ÐÐ°ÑÐ¸Ð»ÑÐµÐ²Ð°, ÐÐ½Ð°ÑÑÐ°ÑÐ¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: Ð¼Ð°ÑÐºÐµÑÐ¸Ð½Ð³Ð¾Ð²Ð°Ñ ÑÑÑÐ°ÑÐµÐ³Ð¸Ñ
Ð¼Ð°ÑÐºÐµÑÐ¸Ð½Ð³Ð¾Ð²ÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ
Ð¸Ð·Ð´Ð°ÑÐµÐ»ÑÑÐºÐ¾Ðµ Ð´ÐµÐ»Ð¾
ÑÐµÐ´Ð°ÐºÑÐ¾Ñ-Ð¼Ð°ÑÐºÐµÑÐ¾Ð»Ð¾Ð³
ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½ÑÐ¹ Ð¿ÑÑÐµÐ²Ð¾Ð´Ð¸ÑÐµÐ»Ñ
Ð¸Ð½ÑÑÑÑÐ¼ÐµÐ½ÑÑ Ð¿ÑÐ¾Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ñ
marketing strategy
marketing research
publishing
marketing editor
e-guide
promotion tools

description: Ð ÑÐ°Ð±Ð¾ÑÐµ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐ¸ ÑÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ ÑÐµÐ´Ð°ÐºÑÐ¾ÑÐ¾Ð¼-Ð¼Ð°ÑÐºÐµÑÐ¾Ð»Ð¾Ð³Ð¾Ð¼ Ð¼Ð°ÑÐºÐµÑÐ¸Ð½Ð³Ð¾Ð²Ð¾Ð¹ ÑÑÑÐ°ÑÐµÐ³Ð¸Ð¸ Ð¾Ð½Ð»Ð°Ð¹Ð½-Ð¸Ð·Ð´Ð°Ð½Ð¸Ñ Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½Ð¾Ð³Ð¾ ÑÑÑÐ¸ÑÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿ÑÑÐµÐ²Ð¾Ð´Ð¸ÑÐµÐ»Ñ Â«ÐÐµÑÐµÑÐ±ÑÑÐ³ 24Â». ÐÐ°Ð½Ð° Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾-ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ°Ñ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ° Ð¸Ð·Ð´Ð°Ð½Ð¸Ñ, Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ñ SWOT-Ð¸ PEST-Ð°Ð½Ð°Ð»Ð¸Ð· Ð¿ÑÐ¾ÐµÐºÑÐ°, Ð¾Ð¿Ð¸ÑÐ°Ð½Ñ Ð¿ÑÐµÐ´Ð¿Ð¾ÑÑÐ¸ÑÐµÐ»ÑÐ½Ð¾Ðµ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ ÑÑÑÐ°ÑÐµÐ³Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¸ Ð¿Ð¾ ÐµÐ³Ð¾ ÑÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ Ñ ÑÐºÐ°Ð·Ð°Ð½Ð¸ÐµÐ¼ ÑÑÑÐµÐºÑÐ¸Ð²Ð½ÑÑ Ð¼Ð°ÑÐºÐµÑÐ¸Ð½Ð³Ð¾Ð²ÑÑ Ð¸Ð½ÑÑÑÑÐ¼ÐµÐ½ÑÐ¾Ð².
description: The paper discusses the features of the implementation of the marketing strategy of an online edition by the editor marketer on the example of the online travel guide "Petersburg 24". We gave the organizational and economic characteristics of the guide and carried out a SWOT and PEST analysis of the project. As a result, the preferred direction of strategizing is described and recommendations for its implementation are des cribed, indicating effective marketing tools are given.
Five methods for determining pattern speeds in galaxies
Creators: name: Pfenniger, Daniel
name: Saha, Kanak
name: Wu, Yu-Ting
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Aims. New or refined methods for determining instantaneous scalar and vector pattern speeds from a restricted domain are developed, for applications in N-body simulations or in galaxies. Methods. The general feature used throughout follows from the fact that the time-derivative of a function of the coordinates is linearly proportional to its rotation rate and its particle velocities. Knowing these allow in general to retrieve the instantaneous pattern speed vector by linear optimization. Similarly, if an invariant function depends both on the position and velocities, then its instantaneous rotation vectors in space can be retrieved. Knowing the accelerations allows to find rotation in velocity space. Results. The first 3 methods are based on the assumed rotational invariance of functions at each point in space or velocity space: 1) The 6D invariant function method measuring the pattern speed vectors in space and velocity space, 2) The differential/regional 3D Tremaine-Weinberg method evaluated over high signal to noise ratio regions, 3) The 3D Jacobi integral method yielding the potential pattern speed. Extensions to derive the rotation center position, speed and acceleration are introduced in 1) and 3). The last 2 methods are based on the assumed invariance of average functions of the particle coordinates. 4) The moment of inertia methods by using the derivative of the singular value decomposition, 5) The 2D Fourier method (3D for m = 2 mode) giving the mode rotation speeds. Pattern speed accelerations are also derived in 4) and 5). Conclusions. Depending on the available data, the different methods provide a choice of approaches.
description: Language edited, accepted for publication in Astronomy & Astrophysics
The Random Walk Metropolis: Linking Theory and Practice Through a Case Study
Creators: name: Sherlock, Chris
name: Fearnhead, Paul
name: Roberts, Gareth O.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: The random walk Metropolis (RWM) is one of the most common Markov chain Monte Carlo algorithms in practical use today. Its theoretical properties have been extensively explored for certain classes of target, and a number of results with important practical implications have been derived. This article draws together a selection of new and existing key results and concepts and describes their implications. The impact of each new idea on algorithm efficiency is demonstrated for the practical example of the Markov modulated Poisson process (MMPP). A reparameterization of the MMPP which leads to a highly efficient RWM-within-Gibbs algorithm in certain circumstances is also presented.
description: Published in at http://dx.doi.org/10.1214/10-STS327 the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org)
EFFECTS OF FARMLAND DEGRADATION ON THE LIVELIHOOD OF  RURAL COMMUNITY: A CASE OF LOMA WOREDA, DAWURO ZONE,  SOUTHERN ETHIOPIA
Creators: name: AMANUEL BETELA SEGARO
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Abstract
Livelihood of Ethiopian  farmers’ is most severely affected by natural and man-made
farmland degradation problem. The main objective of this study is to assess the effects of
farmland degradation on the livelihood of rural communities in Loma woreda, Dawuro zone,
South Ethiopia. Combination of both purposively and random sampling techniques were used
to select study Woreda, Kebele and HHs. Data were collected from three agro-ecological
zone representative kebeles, namely Fulassa-Borthe, Dissa-qera  and Yello-Worbati, totally
132 households, 21 FGD participants and 18 key informants were participated. The
instruments used for data collection were questionnaires, interview, focus group discussions,
and observation. Data obtained from questionnaires were analyzed using descriptive
statistics such as mean, standard deviation, percentage, frequency and inferential statistics,
like one way ANOVA and chi-square test  with the help of SPSS version 20. In addition,
multinomial logistic  regression  model was used to analyze the determinants of livelihood
strategy. Landsat image, GIS and RS were  also  used to  analyze LULC  change. The result
from satellite image  interpretation  indicated  an increase in  farmland and water body and
increase  in shrub/grassland and forestland. The result showed that the area before 18 year
was  low problem. The recent data shows over cultivated land, with very low crope product
and productivity due to farmland degradation. The main factor is land management problem,
and it final output was economical shortage in the community. Besides, the multinomial
logistic regression model analysis showed that, the rural livelihood strategy determined by
Livestock, lack of diversified income, Input use, Contact with DAs, Sex, Land holding size
Family size, Age and Education were statistically significant explanatory variables in rural
livelihood strategy. To cope up the problem, about 47.67% farmers developed strategies, like
AG+ non-farming, AG+ off-farming and the combination of three (AG only, AG+non-
farming and AG +off-farming) livelihood choice than agriculture only. In order to alleviate
the FLD problems and to increase productive capacity of farmland local government, NGOs
and study area community should work jointly to change degraded farmland use wisely
without compromising the next generation.
THE SOCIO ECONOMIC AND ENVIRONMENTAL ROLES OF  ENSET (Ensete ventricosum (Welw.) Cheesman) IN CHENCHA  WOREDA, SOUTH WESTERN ETHIOPIA
Creators: name: GEBRE GALLO
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Enset (Ensete ventricosum (Welw.) Cheesman) is a multipurpose indigenous crop
in Ethiopia. The cultivation of enset is a central farming activity due to its various
social, economic and environmental significances  for farm households. The main
objective of this research was  to  assess the  socio-economic  and environmental
roles of enset in Chencha woreda, southwestern Ethiopia. To meet the objectives,
a mixed method (both  qualitative and quantitative)  research approaches were
employed. To determine the size of sample kebeles, random sampling technique
was utilized. In this case, 209 sample households were selected from four kebeles.
To supplement and bridge household survey data, focus group discussion, key
informant interview and field observation were undertaken. Data were analyzed
by both quantitative and qualitative methods, using  simple descriptive statistics,
frequency, percentage,  tables, graphs and photographs.  The findings show  that
enset plays a vital role in  the socio-economic life of the people in the study area.
In line with this, farm households consider that enset is a cultural identity crop, an
indication of status symbol, as a medicinal purpose,  primary source of food for
farm households and source of livestock feed. Its complex spongy root system form
mate-like structure in the root zones and its leaf canopy enabled an excellent
mechanism for  protecting soil against  erosion, runoff and land degradation,
conserve soil and moisture and increase soil fertility. Furthermore, it is drought
tolerant as compared to  root or tuber crops. Based on this research finding  the
major constraints that hinder the role of enset identified by farmers were disease
and lack of disease controlling measures for enset disease. Moreover, the attention
given by concerned bodies (government, NGOs and research organizations) to
improve the productivity of enset is low. Hence, this research recommends that its
sustainability needs close attention from research institutions, government and
non-government organizations working in the area.
Ultraviolet asymptotics of scalar and pseudoscalar correlators in hot Yang-Mills theory
Creators: name: Laine, M.
name: Vepsalainen, M.
name: Vuorinen, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Inspired by recent lattice measurements, we determine the short-distance (a << r << 1/pi T) as well as large-frequency (1/a >> omega >> pi T) asymptotics of scalar (trace anomaly) and pseudoscalar (topological charge density) correlators at 2-loop order in hot Yang-Mills theory. The results are expressed in the form of an Operator Product Expansion. We confirm and refine the determination of a number of Wilson coefficients; however some discrepancies with recent literature are detected as well, and employing the correct values might help, on the qualitative level, to understand some of the features observed in the lattice measurements. On the other hand, the Wilson coefficients show slow convergence and it appears uncertain whether this approach can lead to quantitative comparisons with lattice data. Nevertheless, as we outline, our general results might serve as theoretical starting points for a number of perhaps phenomenologically more successful lines of investigation.
description: 27 pages. v2: minor improvements, published version
PROBLEMS AND PROSPECTS OF  FEMALE DOMESTIC WORKERS:  THE CASE OF BISHOFTU TOWN
Creators: name: HIWOT HAILU
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Domestic workers are one of the most vulnerable workers in the world, being often the targets
of physical, verbal and sexual abuse and experiencing discrimination and marginalization with
regard to pay, working conditions and legal rights. One of the sources of vulnerability of
domestic workers has been lack of recognition as workers and thereby inadequate legal
protection of their rights. The objective of this study  is  to assess the challenges and prospects
encountered by female working in domestic households in Bishoftu town by taking three sample
kebeles purposively; thereby by which 81 domestic workers were surveyed using convenience
sampling. Besides, primary data had been used through interview, and direct observation. The
finding this study suggested that the working conditions and available legal protection of
domestic workers in the study area had little or no labor rights or protection: they rarely had
clear contractual relations, worked long hours of work, had little or no privacy and were
exposed to verbal, physical and sexual harassment. In addition, they often had low payment as
compared to the workload they accomplish daily.  Exclusion of  female domestic workers from
the labor law and also being ignored from the list of special groups in the national  female
policy of the country were the major factors that contributed to the vulnerability of domestic
workers to violence of  labor rights and social justices. The study makes recommendations for
future research and policy that might improve conditions for domestic workers through
formulating a policy that advocate for domestic workers rights, and also capable of creating
awareness among domestic workers so as to break the  silence on their major problems facing
them on their day to day life.
Long-range spin-triplet proximity effect in Josephson junctions with multilayered ferromagnets
Creators: name: Trifunovic, Luka
name: Radovic, Zoran
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the proximity effect in SF'(AF)F'S and SF'(F)F'S planar junctions, where S is a clean conventional (s-wave) superconductor, while F' and middle layers are clean or moderately diffusive ferromagnets. Middle layers consist of two equal ferromagnets with antiparallel (AF) or parallel (F) magnetizations that are not collinear with magnetizations in the neighboring F' layers. We use fully self-consistent numerical solutions of the Eilenberger equations to calculate the superconducting pair amplitudes and the Josephson current for arbitrary thickness of ferromagnetic layers and the angle between in-plane magnetisations. For moderate disorder in ferromagnets the triplet proximity effect is practically the same for AF and F structures, like in the dirty limit. Triplet Josephson current is dominant for $d'\approx\hbar v_F/2h'$, where $d'$ is the F' layer thickness and $h'$ is the exchange energy. Our results are in a qualitative agreement with the recent experimental observations [T. S. Khaire, M. A. Khasawneh, W. P. Pratt, and N. O. Birge, Phys. Rev. Lett. \textbf{104}, 137002 (2010)].
description: 4 pages, 4 figures
FARMERS’ PERCEPTION ON THE EFFECTIVENEES OF SOIL AND WATER  CONSERVATION PRACTICES IN GAMO HIGHLANDS THE CASE OF DITA  WOREDA, SOUTH WESTERN ETHIOPIA.
Creators: name: WORKNESH WOGASO
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: A number of soil and water conservation methods were introduced.  Consequently, the
government has invested in sustainable soil and water conservation (SWC) measures. This study
was conducted at Dita Woreda in south West GamoGofa zone of the Southern,
Nation,Nationalites Regional State.  The study area is typical for the high potential barely
production, mixed farming, and cereal crops in the Southwestern Ethiopian highlands. Land is a
precious natural resource which demands efficient management in order to use it in a sustainable
manner. The objective of the study was Farmers perception on the effectiveness of soil and water
conservation practices in Gammo highlands and to evaluate how well implemented measures
address to specification and to describe tradition and  improved concentration measure. Survey
questionnaire were administered to 130 farmers selected from the study area and 8 respondents
for interview and 6 respondents for focus group discussion.  Data collection tools included
questionnaire, focus group discussions, key informant interview and field observation include
data analysis. The results indicate that majority of sample farmers  have  good opinion  on soil
and water conservation. It was found that farmer’s decision to adopt and use SWC measures is
influenced by different factors. Farmer’s  positive attitude towards SWC technology, farmer’s
participation SWC trainining high erosion problem ,steep slope, farmer’s perception of erosion
as problem have significance  positive  influence on farmer’s adoption  of SWC technologies.
Consequently,  the result shows that the majority of the respondent farmers participated in the
SWC their will.  farmers well understood the results of severe soil erosion on their farms and
recognized as loss of topsoil, reduction of yield over time, loss of vegetation cover and grasses,
Structural soil conservation measures practiced in the study area included cutoff drains, soil
bunds, waterways, check dams. Yet farmers have been using biological and agronomic soil
conservation measures either separately or in combination with structural soil conservation
measures. Practices of structural soil conservation measures have been influenced by many
factors. Among these factors such as farmers’ experience, educational, gender, lack of training,
income of hous hold, government policies and strategies and physical factors were observed.
Therefore, the most important factors that require immediate consideration for SWC activities in
the study area are participation of the household farmers has to be through their own conviction
regarding the effectiveness and efficiency of the soil conservation structures. The  government
should be implemented clear policy and strategies about SSWC as well as the communities’ are
also should take the responsibility natural resource protection by participating in SWC1
ASSESSING PERCEIVED IMPACTS AND CAUSES OF HUMAN  NCROACHMENT INTO PROTECTED FOREST ECOSYSTEMS: THE CASE  OF AMARO WOREDA SOUTHERN ETHIOPIA.
Creators: name: TAGELE TAZEZE
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: Protected areas are a cornerstone of forest conservation in developing countries like Ethiopia.
Yet little is known about the impacts of forest cover change on the socio-economic as well as
environmental issue on local communities, and even less pay attention about the relationship
between these effects. Forest reserve in Amaro Woreda has undergone drastic changes over
the year due to encroachment and deforestation by human activities. But the effect of forest
depletion on socio-economic as well as environment of local people demands attention.  The
objective of this study is to assess the impact of   human encroachment into the protected
forest ecosystem. One kebele was selected using purposive sampling from out of 17 kebeles
in the Woreda in which the protected forest is located. The data were collected from primary
and secondary sources from  government institution  and development agencies. Survey
questionnaire,  individual interview and observation were employed to collect primary data
and unpublished socio-economic reports were used. The collected data were  analyzed by
using of descriptive statistics such as frequency, percentage and graphs.  In order to clarify,
the satellite image maps were aided by using Arc GIS. The result of this study reveal that
expansion of farmland and settlement of the community,  low conservation management and
decision making process in the government side were viewed as hindering factor to affect
forest protection in the studied area.  The research recommends that  land resource
management officials and policy implementer’s should enhance people’s awareness through
educating and training to increase conservation practices on the ground in reasonable way to
preserve and protect  forest resources to compromising of the future uses.
CHALLENGES AND OPPORTUNITIES  OF RURAL POVERTY REDUCTION  IN   DAMOT WOYDE WORED, WOLAITTA ZONE, SOUTHERN ETHIOPIA.
Creators: name: MENGISTU LEMMA BARATA.
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: The focus of this study was to assess challenges and opportunities for rural poverty
reduction in Damot Woyde Woreda, Wolaitta zone, Southern Ethiopia. Data were
collected using questionnaire, FGD, interview and document analysis and also from rural
farmers at household level, DAs, kebele administrators, key informant rural farmers and
heads/ representatives of Work Process of Poverty Reduction oriented sectors.119
Sample households were selected using simple random sampling. Data gathered using
questionnaire were analyzed using the SPSS where descriptive statistics were used for the
purpose. As to the study findings, poverty is currently the phenomenon of the rural
population. Its level and depth (poverty) in the rural areas was manifested through
deprivation of consumption, food insecurity and reliance on PSNP and temporal
emergency food aid support. Different policies, strategies and practices were
implemented in the rural areas but lacked effectiveness in lifting out the majority of rural
farmers from the type of poverty they have faced. Result of the study indicated that rural
farmers faced strong challenges from climate change  (prolonged temperature and rain-
fall un certainty) and unexpected diseases of staple food crops such as maize (attacked by
maize  virus) and haricot bean.  The research findings also revealed that, though there
were challenges that faced the rural farmers in poverty reduction, there are also
untapped opportunities  (options and potentials)  in  the rural areas and the woreda that
contribute for poverty reduction and economic growth. Finally, the writer of this research
recommends that the woreda government, non-governmental organizations and
responsible government sectors should address challenges and efficient and effective
utilization of untapped opportunities. In addition, further researches should be conducted
in the same thematic areas.
title: Ð¡Ð¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð»Ð¾Ð³Ð¸ÑÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð½Ð° ÑÐºÐ»Ð°Ð´Ðµ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Improving the organization of logistics processes in stock
Creators: name: ÐÑÑÐ·ÑÐºÐ¾, Ð®Ð»Ð¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2019
Subjects: ÑÐºÐ»Ð°Ð´
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warehouse
logistics process
reserves
economic efficiency
analysis of logistics process

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description: The object of the study is Prometheus LLC.
The purpose of the final qualifying work is to increase the profitability of the activity by increasing the efficiency of the warehouse of the company Prometey LLC.
The main organizational and economic indicators of the commercial enterprise Prometey LLC were analyzed. The analysis of the main business processes in the enterprise and the calculation of the main indicators of the warehouse.
Based on the analysis, recommendations were developed for improving warehouse operations.
The analysis and comparison of two automated warehouse accounting systems and their economic efficiency were carried out.
A highly-sensitive broadband superconducting thermoelectric single-photon detector
Creators: name: Paolucci, Federico
name: Germanese, Gaia
name: Braggio, Alessandro
name: Giazotto, Francesco
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a passive single-photon detector based on the bipolar thermoelectric effect occurring in tunnel junctions between two different superconductors thanks to spontaneous electron-hole symmetry breaking. Our thermoelectric detector (TED) converts a finite temperature difference caused by the absorption of a single photon into an open circuit thermovoltage. Designed with feasible parameters, our TED is able to reveal single-photons of frequency ranging from about 15 GHz to about 150 PHz depending on the chosen design and materials. In particular, this detector is expected to show values of signal-to-noise ratio SNR about 15 at ν = 50 GHz when operated at a temperature of 10 mK. Interestingly, this device can be viewed as a digital single-photon detector, since it generates an almost constant voltage VS for the full operation energies. Our TED can reveal single photons in a frequency range wider than 4 decades with the possibility to discern the energy of the incident photon by measuring the time persistence of the generated thermovoltage. Its broadband operation suggests that our TED could find practical applications in several fields of quantum science and technology, such as quantum computing, telecommunications, optoelectronics, THz spectroscopy and astro-particle physics.
description: 5 pages, 4 figures
CLANSHIP IDENTITY FORMATION AMONG THE KONSO OF SOUTHERN  ETHIOPIA
Creators: name: TADIWOS TUKANO GELEBO
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: Among the Konso people, clan organization is a claim to identity based up on patrilineal line
mainly founded on maintaining through observing its basic principle of regulating procreation
and family creation. However, clan organization is strongly maintained in other domains of the
culture  that  contributed  much  for  maintaining  it  untill  recent.  Thus,  clanship  is  key  kinship
organization for the Konso people but the emphasis given to it is less and as a matter of this fact
it is less dealt with. Main objective of this thesis is to find out identity formation processes and
practices,  both  individually  and  in  group,  association  of  self  and  the  group  with  clan
organization. Institutions of clan leadership, family and village organization are characterized
with clan organization and identities if individuals are visible in these institutions. The finding of
the clanship identity in these institutions has great contribution to maintain the clan identity and
its purpose. The search to the knowledge in the clanship identity formation has methodologically
followed selection of two rural villages and with in these villages key informants are targeted
along with participant observation and review of relevant literature. The values and principles of
the clan organization are maintained to the recent and the impact of the beliefs on the values has
resulted  in  observation  of  the  values  by  the  people.   As  a  matter  of  this  fact,  incestuous
marriages  are  not  common  among  the  Konso people.  Principally  the  regulatory  role  of  clan
identity in determining the sexual relationships and family formations are taken as rules to be
followed  and  maintained.  However,  the  modernization,  degradation  of  natural  environment,
migrations  and  introduction  of  Christianity  to  the  area  since  1950’s  have  resulted  in  the
lessening and omit of clanship identity formation practices of the people. The less attention of the
scholars and of the development actors need to be at hand so as to keep and utilize the values
and principles of social organization in replicating to other domains of the culture and beyond.
Radiation Reaction Effects on Radiation Pressure Acceleration
Creators: name: Tamburini, M.
name: Pegoraro, F.
name: Di Piazza, A.
name: Keitel, C. H.
name: Macchi, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Radiation reaction (RR) effects on the acceleration of a thin plasma foil by a superintense laser pulse in the radiation pressure dominated regime are investigated theoretically. A simple suitable approximation of the Landau-Lifshitz equation for the RR force and a novel leapfrog pusher for its inclusion in particle-in-cell simulations are provided. Simulations for both linear and circular polarization of the laser pulse are performed and compared. It is found that at intensities exceeding $10^{23} \Wcm$ the radiation reaction force strongly affects the dynamics for a linearly polarized laser pulse, reducing the maximum ion energy but also the width of the spectrum. In contrast, no significant effect is found for circularly polarized laser pulses whenever the laser pulse does not break through the foil.
TRADITIONAL MARRIAGE PRACTICES AMONG MASHOLE COMMUNITY IN SNNPR OF ETHIOPIA
Creators: name: Genzebe Gezahegn
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: Marriage can be defined as a series of customs formalizing the relationship between adult
partners within the family and socially approved union between two or more adult partners that
regulates the sexual and economic rights and obligations between them. It has customs, rules,
and obligations that establish a socially endorsed relationship between the kin groups of the
married partners. The traditional marriage practices are on disappearing as a result of the quick
process of economic growth, globalization, modernization and religions. This leads to the loss of
identity. As a result many scholars make their own contribution by documenting, displaying and
promoting distinctive features of different ethnic group identity. For the matter, this study aimed
to understand, provide detailed data of traditional marriage practice of the Mashole through
qualitative data gathering and analysis method. Therefore, Mashole has four types of traditional
marriage practices such as Logashipota, Tina, Dahal, and Boliqala marriage.  However those
traditional marriage practices are on disappearing as the result of infrastructure fulfillment,
government, nongovernmental organization and religious expansion. Therefore government,
community members and other stakeholders are suggested to plan for develop and promote the
cultural aspects of Mashole community.
Vortices as nurseries for planetesimal formation in protoplanetary discs
Creators: name: Heng, Kevin
name: Kenyon, Scott J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Turbulent, two-dimensional, hydrodynamic flows are characterized by the emergence of coherent, long-lived vortices without a need to invoke special initial conditions. Vortices have the ability to sequester particles, with typical radii from about 1 mm to 10 cm, that are slightly decoupled from the gas. A generic feature of discs with surface density and effective temperature profiles that are decreasing, power-law functions of radial distance is that four vortex zones exist for a fixed particle size. In particular, two of the zones form an annulus at intermediate radial distances within which small particles reside. Particle capture by vortices occurs on a dynamical time scale near and at the boundaries of this annulus. As the disc ages and the particles grow via coagulation, the size of the annulus shrinks. Older discs prefer to capture smaller particles because the gas surface density decreases with time, a phenomenon we term "vortex aging". More viscous, more dust-opaque and/or less massive discs can have vortices that age faster and trap a broader range of particle sizes throughout the lifetime of the disc. Thus, how efficiently a disc retains its mass in solids depends on the relative time scales between coagulation and vortex aging. If vortices form in protoplanetary discs, they are important in discs with typical masses and for particles that are likely to condense out of the protostellar nebula. Particle capture also occurs at distances relevant to planet formation. Future infrared, submillimetre and centimetre observations of grain opacity as a function of radial distance will test the hypothesis that vortices serve as nurseries for particle growth in protoplanetary discs.
description: 18 pages, 5 figures, 1 table. Accepted by MNRAS. No changes from previous version except for title (MNRAS requires only first word to be in upper case)
The gap equations of background field invariant Refined Gribov-Zwanziger action proposals and the deconfinement transition
Creators: name: Dudal, David
name: Vercauteren, David
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In earlier work, we set up an effective potential approach at zero temperature for the Gribov-Zwanziger model that takes into account not only the restriction to the first Gribov region as a way to deal with the gauge fixing ambiguity, but also the effect of dynamical dimension-two vacuum condensates. Here, we investigate the model at finite temperature in presence of a background gauge field that allows access to the Polyakov loop expectation value and the Yang-Mills (de)confinement phase structure. This necessitates paying attention to BRST and background gauge invariance of the whole construct. We employ two such methods as proposed elsewhere in literature: one based on using an appropriate dressed, BRST invariant, gluon field by the authors and one based on a Wilson-loop dressed Gribov-Zwanziger auxiliary field sector by Kroff and Reinosa. The latter approach outperforms the former, in estimating the critical temperature for N=2, 3 as well as correctly predicting the order of the transition for both cases.
description: 21 figures. arXiv admin note: text overlap with arXiv:2206.06002
STRATEGIES TO SURVIVE SOCIAL - ECOLOGICAL RISKS  AMONG KONSO OF SOUTHERN ETHIOPIA
Creators: name: AYANO GUDANO
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Konso people are known for their intensive agriculture and conservation practices that
provide  solutions  to  social  and  environmental  problems.  This  research  presents  an
empirical study on strategies to survive social-ecological risks among Konso of southern
Ethiopia.  The  main  aim of  the  study was  to  investigate  how  the  Konso  adults  perceive
social-ecological  risks,  the  strategies  they  employ  to  deal  with  these  risks  and  the
mechanisms used to learn these strategies. To address the objectives of the  study, both
qualitative  and  quantitative  methods  were  employed  which  includes:  field  observation,
free lists, semi-structured interviews and focus group discussions. The result of the study
revealed  that  Konso  adults  have  clear  understanding  about  the  risky  times  they
experienced. The culture of sharing experiences and relating difficult times with natural
and  social  incidences  contributed  to  their  perception  of  social-ecological  risks.  The
research also identified that  food scarcity, conflict, long dry season, and disease are the
salient risks of the study area. Besides, saving, petty trade, spinning cotton, eating wild
plants,  birta,  malota,  wage  labor,  qapsisa  (mortgage)  are  among  the  short  term
strategies  employed  to  mitigate  food  scarcity,  whereas  intensive  agriculture,  social
networks  (i.e.  labor  organization),  intercropping,  mixed  farming,  diversification  of
farming  and  non-farming  activities  and  planting  fruit  plants  are  adaptive  strategies
developed  through  time  to  increase  their  chance  of  survival  in  face  of  risky  times.
Moreover,  the  research  result  revealed  that  adults  learn  strategies  to  survive  socialecological  risks  primarily  from  parents  through  observation  and  listening  of  parents
teaching and advice. To this end, recommendations such as developing and implementing
strategies that initiate working culture, matching local coping and adaptive mechanisms
with  scientific  knowledge  and  sustaining  indigenous  of  conflict  resolution  institutions
and/or mechanisms seems helpful.
Antiferromagnetic order in multi-band Hubbard models for iron-pnictides
Creators: name: Schickling, Tobias
name: Gebhard, Florian
name: Bünemann, Jörg
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate multi-band Hubbard models for the three iron 3$d$-$t_{2g}$ bands and the two iron 3$d$-$e_g$ bands in ${\rm La O Fe As}$ by means of the Gutzwiller variational theory. Our analysis of the paramagnetic ground state shows that neither Hartree--Fock mean-field theories nor effective spin models describe these systems adequately. In contrast to Hartree--Fock-type approaches, the Gutzwiller theory predicts that antiferromagnetic order requires substantial values of the local Hund's-rule exchange interaction. For the three-band model, the antiferromagnetic moment fits experimental data for a broad range of interaction parameters. However, for the more appropriate five-band model, the iron $e_g$ electrons polarize the $t_{2g}$ electrons and they substantially contribute to the ordered moment.
description: 4 pages, 4 figures
Delta rho pi interaction leading to N* and Delta* resonances
Creators: name: Xie, Ju-Jun
name: Torres, A. Martinez
name: Oset, E.
name: Gonzalez, P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We have performed a calculation for the three body $Δρπ$ system by using the fixed center approximation to Faddeev equations, taking the interaction between $Δ$ and $ρ$, $Δ$ and$π$, and $ρ$ and $π$ from the chiral unitary approach. We find several peaks in the modulus squared of the three-body scattering amplitude, indicating the existence of resonances, which can be associated to known $I=1/2, 3/2$ and $J^P=1/2^+, 3/2^+$ and $5/2^+$ baryon states.
description: Presented at the 21st European Conference on Few-Body Problems in Physics, Salamanca, Spain, 30 August - 3 September 2010