cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Intensity of Precision Agriculture Technology Adoption by Cotton Producers
Creators: name: Paxton, Kenneth W.
name: Mishra, Ashok K.
name: Chintawar, Sachin
name: Roberts, Roland K.
name: Larson, James A.
name: English, Burton C.
name: Lambert, Dayton M.
name: Marra, Michele C.
name: Larkin, Sherry L.
name: Reeves, Jeanne M.
name: Martin, Steven W.
name: Paxton, Kenneth W.
name: Mishra, Ashok K.
name: Chintawar, Sachin
name: Roberts, Roland K.
name: Larson, James A.
name: English, Burton C.
name: Lambert, Dayton M.
name: Marra, Michele C.
name: Larkin, Sherry L.
name: Reeves, Jeanne M.
name: Martin, Steven W.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Crop Production/Industries
subject: Farm Management
subject: Production Economics
subject: Research and Development/Tech Change/Emerging Technologies
subject: precision technologies
subject: Poisson
subject: negative binomial count data method
subject: GPS
subject: education
subject: cotton

description: Many studies on the adoption of precision technologies have generally used logit models to explain the adoption behavior of individuals. This study investigates factors affecting the intensity of precision agriculture technologies adopted by cotton farmers. Particular attention is given to the role of spatial yield variability on the number of precision farming technologies adopted, using a count data estimation procedure and farm-level data. Results indicate that farmers with more within-field yield variability adopted a higher number of precision agriculture technologies. Younger and better educated producers and the number of precision agriculture technologies used were significantly correlated. Finally, farmers using computers for management decisions also adopted a higher number of precision agriculture technologies.
Additional file 1 of Effects of snack portion size on anticipated and experienced hunger, eating enjoyment, and perceived healthiness among children
Creators: name: Schwartz, Camille
name: Lange, Christine
name: Hachefa, Celia
name: Cornil, Yann
name: Nicklaus, Sophie
name: Chandon, Pierre
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Statistics
subject: FOS: Mathematics
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Figure S1. Study timeline (from session #1 to session #7 over 7 weeks) and photos of the 3 portion sizes offered for the brownie and the applesauce (presented in metal boxes with compartments and lids).
Weak Poincare inequalities on domains defined by Brownian rough paths
Creators: name: Aida, Shigeki
Publisher: name: arXiv
Year: 2005
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60H07 (Primary) 60H10, 58J65. (Secondary)

description: We prove weak Poincare inequalities on domains which are inverse images of open sets in Wiener spaces under continuous functions of Brownian rough paths. The result is applicable to Dirichlet forms on loop groups and connected open subsets of path spaces over compact Riemannian manifolds.
description: Published at http://dx.doi.org/10.1214/009117904000000478 in the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Household Food Stamp Program Participation and Childhood Obesity
Creators: name: Robinson, Christina A.
name: Zheng, Xiaoyong
name: Robinson, Christina A.
name: Zheng, Xiaoyong
Publisher: name: Unknown
Year: 2011
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: child obesity
subject: Food Stamp Program

description: This study examines the dynamic relationship between a household’s Food Stamp Program (FSP) participation and the extent to which children in the household are overweight or obese. In contrast to previous studies employing static models, our results suggest that FSP participation significantly affects the deviation of current body mass index (BMI) from the ideal level in older male children who are currently underweight and for older female children who are already overweight. For older male children, the effect is desirable; for older females, however, our findings indicate that FSP participation has an adverse effect on their health and may contribute to being overweight or obese.
Impacts of Rising Food Prices on Poverty and Welfare in Vietnam
Creators: name: Vu, Linh
name: Glewwe, Paul
name: Vu, Linh
name: Glewwe, Paul
Publisher: name: Unknown
Year: 2011
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: food prices
subject: poverty
subject: rice prices
subject: Vietnam
subject: welfare

description: In 2007 and 2008, international prices of rice and other grains sharply increased, raising fears that poor households in developing countries would become poorer. Yet, these fears often ignored that many of these poor households were food producers. This study examines the impact of rising food prices on welfare in Vietnam. Our results show that, overall, higher food prices raised the average Vietnamese household’s welfare. However, higher food prices made most households worse off. Average welfare was found to increase because the average welfare loss of households whose welfare declined (net purchasers) was smaller than the average welfare gain of those whose welfare increased (net sellers).
Auf der Suche nach Hatra: Einige Voranmerkungen zu Franz Altheims Forschungsreise im Nahen Osten
Creators: name: Moriggi, Marco
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2021

description: The German historian Franz Altheim’s interest for the Eastern frontier of the Roman Empire is reflected in his scholarly bibliography. This paper aims at providing some hints in order to investigate how this interest could be pursued through a research trip to Mesopotamia this scholar made in 1938 under the auspices of thee “Forschungsgemeinschaft Deutsches Ahnenerbe” Society.
description: Kervan. International Journal of African and Asian Studies, V. 25 N. 2 (2021): Kervan
Live and Feeder Cattle Options Markets: Returns, Risk, and Volatility Forecasting
Creators: name: Brittain, Lee
name: Garcia, Philip
name: Irwin, Scott H.
name: Brittain, Lee
name: Garcia, Philip
name: Irwin, Scott H.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Livestock Production/Industries
subject: Risk and Uncertainty
subject: feeder cattle
subject: live cattle
subject: options
subject: returns
subject: risk
subject: volatility forecasting

description: This paper examines returns from holding 30- and 90-day call and put positions, and the forecasting performance of implied volatility in the live and feeder cattle options markets. Implied volatility is an upwardly biased and inefficient predictor of realized volatility, with bias most pronounced in live cattle. While significant returns exist from several positions, strategies are strongly affected by drifts in futures prices. However, returns from live cattle puts are persistent, and evidence from 30-day straddle returns indicates the live cattle market overprices volatility. Overpricing is consistent with volatility risk, the effect of which is magnified by extreme market conditions.
Additional file 1 of Workplace experiences of mental health consumer peer workers in New South Wales, Australia: a survey study exploring job satisfaction, burnout and turnover intention
Creators: name: Scanlan, Justin Newton
name: Still, Megan
name: Radican, Jae
name: Henkel, Daya
name: Heffernan, Tim
name: Farrugia, Peter
name: Jemima Isbester
name: English, Jessica
Publisher: name: figshare
Year: 2020
Subjects: subject: Biotechnology
subject: Sociology
subject: FOS: Sociology

description: Additional file 1.
Possible Periodic Windowed Behavior in SGR1935+2154 SGR Bursts
Creators: name: Grossan, Bruce
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Two repeating FRB sources, FRB180916 (CHIME/FRB Collaboration, 2020a) and FRB121102 (Rajwade, et al., 2020, Cruces, et al., 2021) display periodic windowed behavior (PWB) in the times of FRB detections. In PWB, events only occur within a periodic window spanning some fraction of the period, but no events may occur during many of the periods. During UT 2020 April 28, two peaks of a soft gamma burst (Li, et al., 2021) were identified with two FRB peaks (CHIME/FRB Collaboration, et al., 2020b) from soft gamma repeater (SGR) 1935+2154. As SGRs are a type of magnetar, these observations establish a link between at least some FRBs and magnetars. The analysis herein, which selects the period giving the minimum window fraction, shows PWB in this source's soft gamma-ray emission. For 161 bursts from 2014 through 2020 from IPN (Interplanetary Network) instruments, a clearly resolved minimum in window fraction vs. period occurs at a 231 +/- 9 day period, and 55 \% window fraction. The data cover only 6 bursting episodes, however, the periodicity result appears relatively robust: First, the IPN has excellent time coverage and is unlikely to miss bursts outside of these windows. Second, for various data subsets (with significantly less bursts), either the best or second best measured period was consistent with 231 days, even in the sub-sample with the richest bursting episode removed. In addition, simulations show that even small numbers of uniform random bursts do not show PWB, and that the results are not due to limited sampling. The apparent PWB could have alternative explanations; a firm conclusion of PWB would be evident, however, after the observation of more consistent episodes. If the periodicity of this SGR's bursts can be verified, and if similar behavior were observed in other repeating FRB sources, it might suggest a linkage between FRB and SGR burst mechanisms or emission conditions.
description: This is the final version, and updates the publication reference
Alla ricerca del “vero uomo”: declinazioni della mascolinità di Narendra Modi
Creators: name: Consolaro, Alessandra
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2021

description: This article deals with some issues regarding masculinity in contemporary India, focusing on popular culture, the clothing semiotics, and the media discourse on masculinity, referred to Prime Minister Narendra Modi, leader of the Hindu nationalist party Bharatiya Janata Party (BJP). Modi has manipulated many figures from the nationalist past in order to build an image of himself as “the real man,” reaffirming the mandate of masculinity in order to lead the nation into the new millennium.
description: Kervan. International Journal of African and Asian Studies, V. 25 N. 2 (2021): Kervan
Interpunctive analysis in the interlingual subtitles of An (Kawase Naomi, 2015): a comparison between Japanese and three European languages
Creators: name: Vitucci, Francesco
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2021

description: This contribution investigates punctuation in the Italian prosubs of the Japanese feature film An (Kawase Naomi, 2015) by comparing it with the English and French versions in order to trace trends and points of contact between the three European languages and Japanese; in particular, the subject of the investigation will be the use of the full stop, comma and ellipsis. Contrary to expectations, punctuation has not always been the subject of in-depth investigations in the context of audiovisual translation studies since the phenomenon has often remained linked to idiosyncratic uses that are not always shared and shareable by broadcasters, subtitles and clients.
description: Kervan. International Journal of African and Asian Studies, V. 25 N. 2 (2021): Kervan
Eye-gaze tracking with free head motion
Creators: name: Hennessey, Craig
Publisher: name: University of British Columbia
Year: 2009

description: Knowledge of the eye-gaze position of a subject may allow machines to interact with humans in a more intuitive and natural fashion. The goal of this thesis is to develop a minimally restrictive eye-gaze tracking system using a single camera, that is 3D model based, uses multiple glint light sources and that can re-acquire the eye position rapidly after head movements. The implemented system estimates the gaze position on a computer screen of a subject, solely by tracking features in images of their face and eye. The system is capable of estimating the point of gaze independent of head position with an update rate of 15 Hz. The processing time required for a full sized image frame is 110 ms which reduces to 28 ms when the region of interest, used to reduce the size of image to be processed, is locked on the eye. A delay of 3 frames before reprocessing the full image was added to avoid losing lock due to eye blinks. After determining the region of interest has lost the eye due to translation, the system is able to reacquire the eye within 110 ms. A novel eye-glass reflection compensation algorithm allows people who wear corrective lenses to use the system. Insensitivity to ambient lighting conditions is achieved through infrared system lighting and optical filters. The system was tested with the eye located in six different positions resulting in average accuracies ranging from 0.54° to 1.1° of visual angle. The system was also tested on twelve different subjects of various ethnicities, gender and eye-glass use, with an average error 0.87° and an average maximum error of 1.85°. The system we have developed is a fully functional eye-gaze tracker which is based on a single camera, compensates for reflections off eye-glasses, and handles varying ambient lighting conditions. Our current system may be used as a testbed for further eye-gaze tracking improvements and as a platform for developing eye-gaze aware applications.
Learning low-frequency temporal patterns for quantitative trading
Creators: name: da Costa, Joel
name: Gebbie, Tim
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Machine Learning (cs.LG)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences

description: We consider the viability of a modularised mechanistic online machine learning framework to learn signals in low-frequency financial time series data. The framework is proved on daily sampled closing time-series data from JSE equity markets. The input patterns are vectors of pre-processed sequences of daily, weekly and monthly or quarterly sampled feature changes. The data processing is split into a batch processed step where features are learnt using a stacked autoencoder via unsupervised learning, and then both batch and online supervised learning are carried out using these learnt features, with the output being a point prediction of measured time-series feature fluctuations. Weight initializations are implemented with restricted Boltzmann machine pre-training, and variance based initializations. Historical simulations are then run using an online feedforward neural network initialised with the weights from the batch training and validation step. The validity of results are considered under a rigorous assessment of backtest overfitting using both combinatorially symmetrical cross validation and probabilistic and deflated Sharpe ratios. Results are used to develop a view on the phenomenology of financial markets and the value of complex historical data-analysis for trading under the unstable adaptive dynamics that characterise financial markets.
description: 9 pages, 7 figures
On the Equivalence of the Digital Waveguide and Finite Difference Time Domain Schemes
Creators: name: Smith, Julius O.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: It is known that the digital waveguide (DW) method for solving the wave equation numerically on a grid can be manipulated into the form of the standard finite-difference time-domain (FDTD) method (also known as the ``leapfrog'' recursion). This paper derives a simple rule for going in the other direction, that is, converting the state variables of the FDTD recursion to corresponding wave variables in a DW simulation. Since boundary conditions and initial values are more intuitively transparent in the DW formulation, the simple means of converting back and forth can be useful in initializing and constructing boundaries for FDTD simulations.
description: v1: 6 pages; v2: 7 pages, generally more polished, more examples, expanded discussion; v3: 15 pages, added state space formulation, analysis of inputs and boundary conditions, translation of passive boundary conditions; v4: various typos fixed
Moving-Target Defense Against Cyber-Physical Attacks in Power Grids via Game Theory
Creators: name: Lakshminarayana, Subhash
name: Belmega, E. Veronica
name: Poor, H. Vincent
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: Information Theory (cs.IT)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This work proposes a moving target defense (MTD) strategy to detect coordinated cyber-physical attacks (CCPAs) against power grids. The main idea of the proposed approach is to invalidate the knowledge that the attackers use to mask the effects of their physical attack by actively perturbing the grid's transmission line reactances via distributed flexible AC transmission system (D-FACTS) devices. The proposed MTD design consists of two parts. First, we identify the subset of links for D-FACTS device deployment that enables the defender to detect CCPAs against any link in the system. Then, in order to minimize the defense cost during the system's operational time, we formulate a zero-sum game to identify the best subset of links to perturb (which will provide adequate protection) against a strategic attacker. The Nash equilibrium robust solution is computed via exponential weights, which does not require complete knowledge of the game but only the observed payoff at each iteration. Extensive simulations performed using the MATPOWER simulator on IEEE bus systems verify the effectiveness of our approach in detecting CCPAs and reducing the operator's defense cost.
description: arXiv admin note: substantial text overlap with arXiv:1908.02392
Electronic vs. Open Outcry: Side-by-Side Trading of KCBT Wheat Futures
Creators: name: Shah, Samarth
name: Brorsen, B. Wade
name: Shah, Samarth
name: Brorsen, B. Wade
Publisher: name: Unknown
Year: 2011
Subjects: subject: Crop Production/Industries
subject: Risk and Uncertainty
subject: bid-ask spread
subject: electronic trading
subject: execution costs
subject: KCBT
subject: liquidity

description: This study compares liquidity costs of electronic and open-outcry wheat futures contracts traded side-by-side on the Kansas City Board of Trade. Liquidity costs are considerably lower in the electronic market. Liquidity costs in the electronic market are still considerably lower after eliminating the bias created by splitting orders in the electronic market. Price volatility and transaction size are positively related to liquidity costs, while a negative relation is found between daily volume and liquidity costs. Price clustering at whole cent prices occurs in the open-outcry market which helps explain its higher liquidity costs. Daily volumes were distinctively higher during the Goldman-Sachs roll, but not enough to explain the higher liquidity costs in the open-outcry market. Trade size is larger in the open-outcry market, which suggests large traders prefer open-outcry trading.
Additional file 1 of Perception and practices of menstruation restrictions among urban adolescent girls and women in Nepal: a cross-sectional survey
Creators: name: Mukherjee, Amrita
name: Mingma Lama
name: Uddhav Khakurel
name: Jha, Alok Nath
name: Ajose, Fatima
name: Acharya, Sanjeev
name: Tymes-Wilbekin, Kristina
name: Sommer, Marni
name: Jolly, Pauline E.
name: Pema Lhaki
name: Sadeep Shrestha
Publisher: name: figshare
Year: 2020
Subjects: subject: Sociology
subject: FOS: Sociology

description: Additional file 1. Questionnaire Form.
Inverse problems with second-order Total Generalized Variation constraints
Creators: name: Bredies, Kristian
name: Valkonen, Tuomo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Total Generalized Variation (TGV) has recently been introduced as penalty functional for modelling images with edges as well as smooth variations. It can be interpreted as a "sparse" penalization of optimal balancing from the first up to the $k$-th distributional derivative and leads to desirable results when applied to image denoising, i.e., $L^2$-fitting with TGV penalty. The present paper studies TGV of second order in the context of solving ill-posed linear inverse problems. Existence and stability for solutions of Tikhonov-functional minimization with respect to the data is shown and applied to the problem of recovering an image from blurred and noisy data.
description: Published in 2011 as a conference proceeding. Uploaded in 2020 on arXiv to ensure availability: the original proceedings are no longer online
Are Agricultural Options Overpriced?
Creators: name: Urcola, Hernan A.
name: Irwin, Scott H.
name: Urcola, Hernan A.
name: Irwin, Scott H.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Risk and Uncertainty
subject: agricultural options
subject: mispricing perceptions
subject: trading returns

description: As agricultural options markets grow, perceptions of overpricing persist among market participants. This study tests the efficiency of corn, soybean, and wheat options by computing trading returns. Several call and put option strategies yield significant profits, but returns are influenced by movements in the futures price, and straddle trading does not lead to significant returns. The combined analysis of put, call, and straddle returns indicates that significant returns can be attributed to drifts in the underlying futures, and that the corn, soybean, and wheat options markets are efficient.
Asymptotics of multivariate orthogonal polynomials with hyperoctahedral symmetry
Creators: name: van Diejen, J. F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 33D52; 41A60

description: We present a formula describing the asymptotics of a class of multivariate orthogonal polynomials with hyperoctahedral symmetry as the degree tends to infinity. The polynomials under consideration are characterized by a factorized weight function satisfying certain analyticity assumptions. As an application, the large-degree asymptotics of the Koornwinder-Macdonald BC_N-type multivariate Askey-Wilson polynomials is determined.
description: 13 pages, LaTeX
Scattering of Dirac particles from non-local separable potentials: the eigenchannel approach
Creators: name: Augusiak, Remigiusz
Publisher: name: arXiv
Year: 2005
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: An application of the new formulation of the eigenchannel method [R. Szmytkowski, Ann. Phys. (N.Y.) {\bf 311}, 503 (2004)] to quantum scattering of Dirac particles from non-local separable potentials is presented. Eigenchannel vectors, related directly to eigenchannels, are defined as eigenvectors of a certain weighted eigenvalue problem. Moreover, negative cotangents of eigenphase-shifts are introduced as eigenvalues of that spectral problem. Eigenchannel spinor as well as bispinor harmonics are expressed throughout the eigenchannel vectors. Finally, the expressions for the bispinor as well as matrix scattering amplitudes and total cross section are derived in terms of eigenchannels and eigenphase-shifts. An illustrative example is also provided.
description: Revtex, 9 pages, 4 figures, published version
A Study on Consumer Behaviour at Organized Fish Retail Outlet
Creators: name: Mugaonkar, Pankajkumar Hanmantrao
name: Ananthan, P.S.
name: Samal, Suman Sekhar
name: Debnath, Biswajit
name: Mugaonkar, Pankajkumar Hanmantrao
name: Ananthan, P.S.
name: Samal, Suman Sekhar
name: Debnath, Biswajit
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agricultural and Food Policy
subject: Organized retailing
subject: Purchasing behaviour
subject: Consumer’s awareness
subject: Fish and fisheries products
subject: CIFE technology

description: Indian consumers have been buying fish from the unhygienic fish markets, but of late fish has become available at many of the multi-format retail outlets. Consumers’ behaviour at organized fish retail outlets in Mumbai has been studied. The majority of consumers are young (25-35 years) and belong to upper middle class. Fresh fish is the preferred choice and about 60 per cent consumers have emphasized on freshness rather than price of fish. About 97 per cent consumers have recently shifted to organized retail outlets from local markets for purchasing fish. The majority of consumers (84.3%) have been found to be species-specific while buying fish. Quality and convenience have been found to be the major factors responsible for shift from local markets. Sensory evaluation of CIFE’s value-added products like fish munch, fish keema, prawn pickle and prawn masala have shown a positive feedback from the consumers as about 62 per cent have rated the parameters like taste, texture, odour, price, etc. highly. However, appearance and packaging have received average feedback, indicating the need to make products more attractive. A majority of consumers (72%) have shown willingness to buy these products and 95 per cent wish to try new products, in both fresh and processed forms, indicating changing consumption pattern in the urban areas. The study has argued that since the technology to prepare such products is already available with Central Institute of Fisheries Education, Mumbai and other institutes like CIFT, Kochi, this can be readily extended to the willing entrepreneurs and women SHGs.
Cost and Return Structure for the Promising Enterprise of Off-Season Vegetables in Himachal Pradesh
Creators: name: Bala, Brij
name: Sharma, Nikhil
name: Sharma, R.K.
name: Bala, Brij
name: Sharma, Nikhil
name: Sharma, R.K.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agricultural and Food Policy
subject: Off-season vegetables
subject: Himachal Pradesh
subject: cabbage
subject: tomato
subject: cauliflower
subject: peas
subject: cropping pattern
subject: economics of off-season vegetables

description: The costs and returns structure has been reported for the production of major off-season vegetables, viz. tomato, cabbage cauliflower and peas in two vegetable-dominated developmental blocks of the district Kullu. Primary data have been collected through survey method for the agricultural year 2007-08. The study has revealed that per hectare cost A1 was highest for tomato, followed by cabbage, cauliflower and lowest for peas, among the selected vegetables. However, per quintal cost of cultivation has been found to be highest for peas, followed by cauliflower, tomato and cabbage. Costs on plant protection measures have been the major constituents of cost A1 in all the crops, followed by expenditure on seed and fertilizers. Vegetables being the labour-intensive crops, have incurred significantly high costs on human labour, ` 13200-` 15600/ha. Gross returns as well as net returns per hectare have been observed to be highest for tomato, followed by cauliflower, cabbage and peas. The study has suggested that to promote this enterprise, niche areas for off-season vegetable cultivation need to be identified and efforts to tap irrigation potential in those areas should be enhanced. Education of farmers for scientific management of crops and provision of improved tools for efficient use of labour have also been suggested to lower production costs and make the vegetable cultivation more beneficial to farmers, particularly to the small and marginal farmers in the state.
Parametric average value modeling of PWM DC-DC converters
Creators: name: Davoudi, Ali
Publisher: name: University of British Columbia
Year: 2009

description: State-space average value modeling of hard switching PWM converters in continuous and discontinuous conduction modes has received significant attention in the literature and various models have been derived. In this thesis, a" new approach for generating the average value model is set forth in which the parasitic effects of circuit elements are readily included. In the proposed methodology, the so-called duty ratio constraint and correction term are extracted numerically using the detailed simulation and expressed as nonlinear functions of the duty cycle and the average value of fast state variable. The proposed methodology is also generalized by representing these numerical functions in terms of duty cycle and the switching-cell dynamic-impedance. An automated small-signal characterization method using a general purpose simulator is also proposed. The resulting parametric average value model is compared with the hardware prototype, the detailed simulation and the analytically averaged model. The proposed model is shown to be very accurate in predicting large-signal time-domain transients as well as small-signal frequency-domain characteristics.
Spin-dependent transport of electrons in the presence of smooth lateral barrier and spin-orbit interaction
Creators: name: Govorov, A. O.
name: Kalameitsev, A. V.
name: Dulka, J. P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We describe theoretically the process of multi-beam reflection in a two-dimensional electron system with a lateral potential barrier. Due to spin-orbital interaction, the reflection process leads to the formation of three beams with different spin polarizations. The efficiency of spin conversion can become small for smooth lateral barriers. Nevertheless, we demonstrate that the spin-conversion effect remains strong for realistic lithographical potentials and spin-orbit interactions in etched lateral nano-structures. The system with a lateral barrier suggests useful applications as a spin-filtering device. The expected quasi-classical adiabatic behavior without spin conversion is found in the system with a very strong spin-orbit interaction. We also consider the quasi-classical motion of electrons in a system with boundaries in a magnetic field and two magnetic focusing geometries.
description: 23 pages, 5 figures
Additional file 1 of Setting up a nurse-led model of care for management of hypertension and diabetes mellitus in a high HIV prevalence context in rural Zimbabwe: a descriptive study
Creators: name: Frieden, Marthe
name: Blessing Zamba
name: Nisbert Mukumbi
name: Patron T. Mafaune
name: Makumbe, Brian
name: Irungu, Elizabeth
name: Moneti, Virginia
name: Isaakidis, Petros
name: Garone, Daniela
name: Prasai, Madhu
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1. Zimbabwe HTN and DM Guidelines. Context-adapted simplified guidelines for management of HTN and DM in Zimbabwe developed during the study. View as.
Dynamics and stability of contractile actomyosin ring in the cell
Creators: name: Chatterjee, Mainak
name: Chatterjee, Arkya
name: Nandi, Amitabha
name: Sain, Anirban
Publisher: name: arXiv
Year: 2020
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Contraction of the cytokinetic ring during cell division leads to physical partitioning of a eukaryotic cell into two daughter cells. This involves flows of actin filaments and myosin motors in the growing membrane interface at the mid-plane of the dividing cell. Assuming boundary driven alignment of the acto-myosin filaments at the inner edge of the iterface we explore how the resulting active stresses influence the flow. Using the continuum gel theory framework, we obtain exact axisymmetric solutions of the dynamical equations. These solutions are consistent with experimental observations on closure rate. Using these solutions we perform linear stability analysis for the contracting ring under non-axisymmetric deformations. Our analysis shows that few low wave number modes, which are unstable during onset of the constriction, later on become stable when the ring shrinks to smaller radii, which is a generic feature of actomyosin ring closure. Our theory also captures how the effective tension in the ring decreases with its radius causing significant slow down in the contraction process at later times.
Analysis of Willingness to Pay for Veterinary Services of the Livestock Owners of Sangli District of Maharashtra
Creators: name: Kumar, Sanjay
name: Mirajkar, Pallavi P.
name: Singh, Y.P.
name: Singh, R.
name: Kumar, Sanjay
name: Mirajkar, Pallavi P.
name: Singh, Y.P.
name: Singh, R.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agricultural and Food Policy
subject: Veterinary services
subject: Livestock health care
subject: Willingness to pay
subject: Animal health services

description: The provision of animal health services in India is by and large, under the domain of public sector and many health care activities like quarantine, disease management, quality control, research and extension, etc. are mainly the responsibilities of government. With veterinary services consuming about 60-80 per cent of the budget allocated to the livestock sector, fiscal constraints would lead to a decline in the operational efficiency of the government livestock services. Owing to financial constraints, some of the state governments have evolved specific animal healthcare policies tending to privatization of the system. The entry of private sector into the veterinary health care sector depends on the availability and sustainability of an economically profitable practice. In this paper an attempt has been made to study the willingness of the people to pay for providing the animal health care services. The study is based on the personal and focused group interview of 120 farmers selected randomly from the Sangli district of Maharastra. Contingent valuation (CV) approach has been used to study the farmer’s WTP (willingness to pay) for providing animal health care services at government veterinary centres (in-centre) and at farmers’ door steps (at home). The study has shown that increase of one unit in the income from livestock, the willingness to pay value increases by ` 43.23 for the in-centre services. When the farmer’s locality was away from the public veterinary centre, the WTP value has been found to increase significantly for at home services. The analysis has provided evidence that the livestock owners are willing to pay for the quality veterinary services not only at their door steps but at the veterinary centre also.
description: Research Notes
Ibn Baṭṭūṭa’s “Prayer of Damascus:” A window on to Damascus in the hell of the Black Death (Part Two)
Creators: name: Tresso, Claudia Maria
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2021

description: Ibn Baṭṭūṭa’s famous Riḥla [(Chronicle of) Travels] is probably the only work of medieval travel literature whose protagonist claims to have personally witnessed the plague pandemic known as the Black Death, which ravaged the Mediterranean world between 1347 and 1350 (and continued in subsequent waves). The passages describing the scourge include the story of a rogatory – and inter-religious prayer held in Damascus in July 1348. This is probably the most often mentioned passage of the Riḥla, the most quoted in the studies on the Black Death in the Middle East, as well in those on relations between religious groups in the Mamluk empire. Nevertheless, to this day it has not yet been the subject of in-depht analysis. This article is an endeavour to contribute to both the studies on Ibn Baṭṭūṭa’s Riḥla and the Black Death by analysing the story of the Damascus prayer in its historical context and literary aspects, i.e., by answering the questions: how does the story fit into the climate of the pandemic in general and into Ibn Baṭṭūṭa’s Riḥla in particular? What are its lexical and narrative characteristics? Moving from the story to the narrated event leads to the question on relations between the different religious groups that took part in the rite. Moreover, how did Islamic scholars interpret the prayer gathering? Since the Riḥla is not a chronicle but a narrative work, another question arises: to what extent is its information reliable? The answer will be found by comparing it with the main Middle Eastern Arabic sources of the 14th and 15th centuries, which are mostly Chronicle texts. The concluding paragraph investigates whether the story of the Damascus prayer derives from Ibn Baṭṭūṭa’s personal testimony, as he claims in the Riḥla, or whether he (or the editor of the work, Ibn Juzayy) might have taken the information from other sources.
description: Kervan. International Journal of African and Asian Studies, V. 25 N. 2 (2021): Kervan
Multipole tensor analysis of the resonant x-ray scattering by quadrupolar and magnetic order in DyB2C2
Creators: name: Matsumura, Takeshi
name: Okuyama, Daisuke
name: Oumi, Nobuyuki
name: Hirota, Kazuma
name: Nakao, Hironori
name: Murakami, Youichi
name: Wakabayashi, Yusuke
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Resonant x-ray scattering (RXS) experiment has been performed for the (3 0 1.5) superlattice reflection in the antiferroquadrupolar and antiferromagnetic phase of DyB2C2. Azimuthal-angle dependence of the resonance enhanced intensities for both dipolar (E1) and quadrupolar (E2) resonant processes has been measured precisely with polarization analysis. Every scattering channel exhibits distinctive azimuthal dependence, differently from the symmetric reflection at (0 0 0.5) which was studied previously. We have analyzed the results using a theory developed by Lovesey et al., which directly connects atomic tensors with the cross-section of RXS. The fitting results indicate that the azimuthal dependences can be explained well by the atomic tensors up to rank 2. Rank 3 and rank 4 tensors are reflected in the data very little. In addition, The coupling scheme among the 4f quadrupolar moment, 5d ortitals, and the lattice has been determined from the interference among the Thomson scattering from the lattice distortion and the resonant scatterings of E1 and E2 processes. It has also been established from the RXS of the (3 0 1.5) reflection that the canting of the 4f quadrupolar moments exists up to T_Q. We also discuss a possible wavefunction of the ground state from the point-charge model calculation.
description: 9 pages, 10 figures
Neutrino cross sections at HERA and beyond
Creators: name: Reno, M. H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The ultrahigh energy neutrino cross section is reviewed. Experimental results from HERA electron-proton and positron-proton scattering have yielded new information about the small x behavior of the parton distribution functions. We compare pre-HERA era neutrino-nucleon cross sections with more recent evaluations.
description: 5 pages, 4 figures, to appear in the Proceedings of the XIII International Symposium on Very High Energy Cosmic Ray Interactions, 6-12 September 2004, Pylos, Greece
Mmwave Beam Management in Urban Vehicular Networks
Creators: name: Limani, Zana
name: Malandrino, Francesco
name: Chiasserini, Carla Fabiana
name: Nordio, Alessandro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Millimeter-wave (mmwave) communication represents a potential solution to capacity shortage in vehicular networks. However, effective beam alignment between senders and receivers requires accurate knowledge of the vehicles' position for fast beam steering, which is often impractical to obtain in real time. We address this problem by leveraging the traffic signals regulating vehicular mobility: as an example, we may coordinate beams with red traffic lights, as they correspond to higher vehicle densities and lower speeds. To evaluate our intuition, we propose a tractable, yet accurate, mmwave communication model accounting for both the distance and the heading of vehicles being served. Using such a model, we optimize the beam design and define a low-complexity, heuristic strategy. For increased realism, we consider as reference scenario a large-scale, real-world mobility trace of vehicles in Luxembourg. The results show that our approach closely matches the optimum and always outperforms static beam design based on road topology alone. Remarkably, it also yields better performance than solutions based on real-time mobility information.
Additional file 1 of What lies beneath: a retrospective, population-based cohort study investigating clinical and resource-use characteristics of institutionalized older people in Catalonia
Creators: name: Amblàs-Novellas, Jordi
name: Santaeugènia, Sebastià J.
name: Vela, Emili
name: Clèries, Montse
name: Contel, Joan C.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Science Policy

description: Additional file 1. Appendix. Figures. A1 and A2, which show the age and sex distribution of IOP and non-IOP, and the frequency of comorbidities of IOP
General Solutions of Relativistic Wave Equations II: Arbitrary Spin Chains
Creators: name: Varlamov, V. V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 22E43; 22E70; 33C70; 35Q40

description: A construction of relativistic wave equations on the homogeneous spaces of the Poincaré group is given for arbitrary spin chains. Parametrizations of the field functions and harmonic analysis on the homogeneous spaces are studied. It is shown that a direct product of Minkowski spacetime and two-dimensional complex sphere is the most suitable homogeneous space for the physical applications. The Lagrangian formalism and field equations on the Poincaré and Lorentz groups are considered. A boundary value problem for the relativistically invariant system is defined. General solutions of this problem are expressed via an expansion in hyperspherical functions defined on the complex two-sphere.
description: 56 pages, LaTeX2e
Two-channel Anderson Impurity Model: Single-electron Green's function, self-energies, and resistivity
Creators: name: Johannesson, H.
name: Bolech, C. J.
name: Andrei, N.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We compute exactly the low-energy single-electron Green's function, the impurity and electron self-energies, and the resistivity for the two-channel Anderson impurity model. These results are obtained by exploiting the boundary conformal field theory identified from the Bethe Ansatz solution of the model. Using that solution we can make contact with the parameters of the original Hamiltonian and provide the detailed crossover between the two integer valence limits. Our results generalize those obtained previously in the context of the two-channel Kondo model.
description: 8 pages, 2 figures
On the Relation between One-Species Diffusion-Limited Coalescence and Annihilation in One Dimension
Creators: name: Brunet, Eric
name: ben-Avraham, Daniel
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The close similarity between the hierarchies of multiple-point correlation functions for the diffusion-limited coalescence and annihilation processes has caused some recent confusion, raising doubts as to whether such hierarchies uniquely determine an infinite particle system. We elucidate the precise relations between the two processes, arriving at the conclusion that the hierarchy of correlation functions does provide a complete representation of a particle system on the line. We also introduce a new hierarchy of probability density functions, for finding particles at specified locations and none in between. This hierarchy is computable for coalescence, through the method of empty intervals, and is naturally suited for questions concerning the ordering of particles on the line.
Wild Places: Mountain - Choreography Documentation (Video)
Creators: name: Hyde, Joseph
Publisher: name: BathSPAdata
Year: 2021
Subjects: subject: 190406 Music Composition
subject: FOS: Arts (arts, history of arts, performing arts, music)
subject: 190407 Music Performance

description: The material referenced in this item is located externally at the Vimeo platform, and can be viewed in full by accessing via the provided link.

Wild Places: Mountain was a dance performance produced by choreographer duo Külli Roosna and Kenneth Flak, commissioned by the Korzo Teater in The Hague for the 2015 CaDance Festival. Hyde developed a wearable sensor system for dancers for the piece, and an hour-long score combining through-composed layers with these interactive elements.
This item contains a link to a short film documenting the choreography for the project, filmed at Coda Oslo international Dance Festival 2015.
Linking Small Farmers to Emerging Agricultural Marketing Systems in India—The Case Study of a Fresh Food Retail Chain in Punjab
Creators: name: Singla, Naresh
name: Singh, Sukhpal
name: Dhindsa, P.K.
name: Singla, Naresh
name: Singh, Sukhpal
name: Dhindsa, P.K.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agricultural and Food Policy
subject: Retail chain
subject: small farmers
subject: agricultural marketing system

description: Linking primary producers with global and national markets through fresh food retail chains is seen as one of the emerging agricultural marketing practices in India to improve small producer’s livelihoods. The fresh food retail chains are investing from farm to fork to buy fruits and vegetables directly from farmers and sell them to retail buyers. However, fresh food retail chains are largely found working with only large farmers and exclude small farmers for various reasons. In this context, this paper has examined the operations of a fresh food retail chain named ‘Easy Day’ and its interface with farmers in Punjab. The study has revealed that fresh food retail chain primarily works with small intensive vegetable cultivators. It has been found that the retail chain farmers could realize higher profits compared to non-RC (traditional market supplying) farmers mainly because of higher yield and higher price realization in the traditional market because of better quality produce. The retail chain procures only a part of the farmers’ produce and the remaining produce has to be sold in the local markets. The retail chain has not made a genuine effort to provide agri-inputs and extension services to the farmers. The study has proposed a number of strategies to further facilitate the marketing of produce of small farmers.
description: Research Notes