cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Algebraic Hardness versus Randomness in Low Characteristic
Creators: name: Andrews, Robert
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Complexity (cs.CC)
subject: FOS: Computer and information sciences

description: We show that lower bounds for explicit constant-variate polynomials over fields of characteristic $p > 0$ are sufficient to derandomize polynomial identity testing over fields of characteristic $p$. In this setting, existing work on hardness-randomness tradeoffs for polynomial identity testing requires either the characteristic to be sufficiently large or the notion of hardness to be stronger than the standard syntactic notion of hardness used in algebraic complexity. Our results make no restriction on the characteristic of the field and use standard notions of hardness. We do this by combining the Kabanets-Impagliazzo generator with a white-box procedure to take $p$-th roots of circuits computing a $p$-th power over fields of characteristic $p$. When the number of variables appearing in the circuit is bounded by some constant, this procedure turns out to be efficient, which allows us to bypass difficulties related to factoring circuits in characteristic $p$. We also combine the Kabanets-Impagliazzo generator with recent "bootstrapping" results in polynomial identity testing to show that a sufficiently-hard family of explicit constant-variate polynomials yields a near-complete derandomization of polynomial identity testing. This result holds over fields of both zero and positive characteristic and complements a recent work of Guo, Kumar, Saptharishi, and Solomon, who obtained a slightly stronger statement over fields of characteristic zero.
description: 32 pages
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title: ÑÐ¿ÐµÑÐ¸Ð°Ð»ÑÐ½Ð¾ÑÑÑ 1.5.2. ÐÐ¸Ð¾ÑÐ¸Ð·Ð¸ÐºÐ°
titleType: Subtitle
Creators: name: ÐÐ¾Ð»ÑÐºÐ¾Ð², ÐÐ³Ð¾Ñ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: 2023
Subjects: ÐÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ¸Ð¾Ð½Ð½ÑÐµ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ñ
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description: Ð ÑÐ¾Ð´Ðµ ÑÐ°Ð±Ð¾ÑÑ Ð¿Ð¾Ð»ÑÑÐµÐ½Ñ Ð½Ð¾Ð²ÑÐµ Ð±Ð¸Ð¾ÑÐ¾Ð²Ð¼ÐµÑÑÐ¸Ð¼ÑÐµ Ð¿Ð¾Ð»Ð¸Ð¸Ð¼Ð¸Ð´Ð½ÑÐµ ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ¸Ð¾Ð½Ð½ÑÐµ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ñ Ð´Ð»Ñ FDM-Ð¿ÐµÑÐ°ÑÐ¸. ÐÑÑÐ²Ð»ÐµÐ½Ð¾, ÑÑÐ¾ Ð½Ð°Ð¿ÐµÑÐ°ÑÐ°Ð½Ð½ÑÐµ Ð¾Ð±ÑÐ°Ð·ÑÑ Ð¸Ð· ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð½ÑÑ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð² Ð¾Ð±Ð»Ð°Ð´Ð°ÑÑ Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÐ½ÑÐ¼Ð¸ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð°Ð¼Ð¸, ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÑÑÐ¸Ð¼Ð¸ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»ÑÐ¼ ÐºÐ¾ÑÑÐ½Ð¾Ð¹ ÑÐºÐ°Ð½Ð¸. ÐÐ»Ð°Ð³Ð¾Ð´Ð°ÑÑ Ð¾ÑÑÑÑÑÑÐ²Ð¸Ñ ÑÐ¸ÑÐ¾ÑÐ¾ÐºÑÐ¸ÑÐ½Ð¾ÑÑÐ¸ Ð¸ Ð²Ð¾ÑÐ¿Ð°Ð»Ð¸ÑÐµÐ»ÑÐ½Ð¾Ð¹ ÑÐµÐ°ÐºÑÐ¸Ð¸ Ð² ÑÐ¾Ð´Ðµ in vitro Ð¸ in vivo Ð¸ÑÐ¿ÑÑÐ°Ð½Ð¸Ð¹ Ð¿Ð¾ÐºÐ°Ð·Ð°Ð½Ð° Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÑ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð´Ð°Ð½Ð½ÑÑ ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ¸Ð¾Ð½Ð½ÑÑ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð² Ð² Ð¸Ð½Ð¶ÐµÐ½ÐµÑÐ¸Ð¸ ÐºÐ¾ÑÑÐ½Ð¾Ð¹ ÑÐºÐ°Ð½Ð¸ Ð´Ð»Ñ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²Ð° ÐºÐ¾ÑÑÐ½ÑÑ Ð¸Ð¼Ð¿Ð»Ð°Ð½ÑÐ°ÑÐ¾Ð².
Approximate Partition Selection for Big-Data Workloads using Summary Statistics
Creators: name: Rong, Kexin
name: Lu, Yao
name: Bailis, Peter
name: Kandula, Srikanth
name: Levis, Philip
Publisher: name: arXiv
Year: 2020
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Many big-data clusters store data in large partitions that support access at a coarse, partition-level granularity. As a result, approximate query processing via row-level sampling is inefficient, often requiring reads of many partitions. In this work, we seek to answer queries quickly and approximately by reading a subset of the data partitions and combining partial answers in a weighted manner without modifying the data layout. We illustrate how to efficiently perform this query processing using a set of pre-computed summary statistics, which inform the choice of partitions and weights. We develop novel means of using the statistics to assess the similarity and importance of partitions. Our experiments on several datasets and data layouts demonstrate that to achieve the same relative error compared to uniform partition sampling, our techniques offer from 2.7$\times$ to $70\times$ reduction in the number of partitions read, and the statistics stored per partition require fewer than 100KB.
Mental Frames and Organizational Decision-making: Facing the Challenges of Change
Creators: name: Lamprinakis, Lampros
name: Fulton, Murray E.
name: Lamprinakis, Lampros
name: Fulton, Murray E.
Publisher: name: Unknown
Year: 2011
Subjects: Industrial Organization

description: Adjusting to the strategic, business and economic changes requires efficient decision-making procedures which can in turn be highly affected by the underlying mental frames that the leaders of the organization hold. This article examines the impact of these mental frames on decision-making with respect to a specific attribute of a decision-making process: the belief that a CEO of a co-operative holds regarding member commitment. The analysis develops a simple theoretical model that shows how the co-op CEO’s obsolete mental frame creates distortions on decision making that can have negative effects on co-op’s strategic decisions and its market share. The starting point of the analysis is the case of the Saskatchewan Wheat Pool (SWP) – a Canadian grain handling, agri-food processing and marketing company that had little success in adapting to the changing economic environment of the Canadian agriculture.
Additional file 1 of COVID-19 in breast cancer patients: a cohort at the Institut Curie hospitals in the Paris area
Creators: name: Vuagnat, Perrine
name: Frelaut, Maxime
name: Toulsie Ramtohul
name: Basse, Clémence
name: Diakite, Sarah
name: Noret, Aurélien
name: Bellesoeur, Audrey
name: Servois, Vincent
name: Hequet, Delphine
name: Laas, Enora
name: Kirova, Youlia
name: Cabel, Luc
name: Jean-Yves Pierga
name: Bozec, Laurence
name: Paoletti, Xavier
name: Cottu, Paul
name: François-Clément Bidard
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Cancer
subject: Hematology
subject: Plant Biology
subject: FOS: Biological sciences
subject: 60506 Virology

description: Additional file 1.
Systematic Literature Reviews in Software Engineering -- Enhancement of the Study Selection Process using Cohen's Kappa Statistic
Creators: name: Pérez, Jorge
name: Díaz, Jessica
name: Garcia-Martin, Javier
name: Tabuenca, Bernardo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Context: Systematic literature reviews (SLRs) rely on a rigorous and auditable methodology for minimizing biases and ensuring reliability. A common kind of bias arises when selecting studies using a set of inclusion/exclusion criteria. This bias can be decreased through dual revision, which makes the selection process more time-consuming and remains prone to generating bias depending on how each researcher interprets the inclusion/exclusion criteria. Objective: To reduce the bias and time spent in the study selection process, this paper presents a process for selecting studies based on the use of Cohen's Kappa statistic. We have defined an iterative process based on the use of this statistic during which the criteria are refined until obtain almost perfect agreement (k>0.8). At this point, the two researchers interpret the selection criteria in the same way, and thus, the bias is reduced. Starting from this agreement, dual review can be eliminated; consequently, the time spent is drastically shortened. Method: The feasibility of this iterative process for selecting studies is demonstrated through a tertiary study in the area of software engineering on works that were published from 2005 to 2018. Results: The time saved in the study selection process was 28% (for 152 studies) and if the number of studies is sufficiently large, the time saved tend asymptotically to 50%. Conclusions: Researchers and students may take advantage of this iterative process for selecting studies when conducting SLRs to reduce bias in the interpretation of inclusion and exclusion criteria. It is especially useful for research with few resources.
description: 20 pages, 4 figures, submitted to Journal of Systems and Software
Low-temperature properties of some disordered systems from the statistical properties of nearly degenerate two-level excitations
Creators: name: Monthus, Cecile
name: Doussal, Pierre Le
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The thermal fluctuations that exist at very low temperature in disordered systems are often attributed to the existence of some two-level excitations. In this paper, we revisit this question via the explicit studies of the following 1D models (i) a particle in 1D random potentials (ii) the random field Ising chain with continuous disorder distribution. In both cases, we define precisely the `two-level' excitations and their statistical properties, and we show that their contributions to various observables are in full agreement at low temperature with the the rigorous results obtained independently. The statistical properties of these two-level excitations moreover yield simple identities at order $T$ in temperature for some generating functions of thermal cumulants. For the random-field Ising chain, in the regime where the Imry-Ma length is large, we obtain that the specific heat is dominated by small non-universal excitations, that depend on the details of the disorder distribution, whereas the magnetic susceptibility and the Edwards-Anderson order parameter are dominated by universal large excitations, whose statistical properties only depend on the variance of the initial disorder via the Imry-Ma length.
description: 19 pages, 4 figures
Consumers’ Willingness to Pay for Food Safety in Nairobi: The Case of Fresh Vegetables
Creators: name: Lagerkvist, Carl Johan
name: Hess, Sebastian
name: Ngigi, Marther W.
name: Okello, Julius Juma
name: Lagerkvist, Carl Johan
name: Hess, Sebastian
name: Ngigi, Marther W.
name: Okello, Julius Juma
Publisher: name: Unknown
Year: 2011
Subjects: subject: Crop Production/Industries
subject: Food Consumption/Nutrition/Food Safety
subject: Food safety
subject: perceived risk
subject: willingness to pay
subject: regression tree
subject: urban agriculture

description: Large urban areas in developing countries represent currently the most dynamically growing markets for food products. This study investigates the willingness to pay of consumers in Nairobi for safer leafy vegetables. We survey individuals’ perceived food safety across four major market categories, while also considering the explanatory role of trust and behavioral, psychological, and socio-demographic covariates. Results show that willingness to pay is market-specific and multi-faceted, with trust and perceived risks as important drivers, while income plays only a subordinate role. We conclude that policy makers should aim to reduce asymmetric information within the value chain without raising food prices such that safer vegetables would become unaffordable for the poor.
Australian consumers' willingness to pay and willingness to purchase a hypothetical lower cholesterol pork product
Creators: name: Bellhouse, Amy
name: Malcolm, Bill
name: Griffith, Garry R.
name: Dunshea, Frank
name: Bellhouse, Amy
name: Malcolm, Bill
name: Griffith, Garry R.
name: Dunshea, Frank
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Consumer/Household Economics
subject: Farm Management
subject: Food Consumption/Nutrition/Food Safety
subject: Livestock Production/Industries
subject: Risk and Uncertainty
subject: pork
subject: cholesterol
subject: choice analysis
subject: Australian pork

description: This study investigated whether there would be an increase in consumer willingness to pay and purchase if reduced cholesterol pork was introduced to the Australian market. A stated choice analysis was used, with the following questions addressed. How are current purchases of fresh pork affected by concerns about cholesterol content? What financial premium, if any, would consumers place on reduced cholesterol pork? Would consumers buy more pork if a low cholesterol option were available? Is there a group of consumers, such as those with high cholesterol, who have an increased willingness to pay for or purchase reduced cholesterol pork when compared to consumers without this health problem? Results from this study indicated that at present the majority of consumers are relatively unconcerned about the cholesterol content of fresh pork and that there is a minimal effect of such concerns on fresh pork purchases. The results also predicted a significant financial premium for the reduced cholesterol product at the retail level, with increased willingness to pay for and consume reduced cholesterol pork by the average pork consuming family. However, as these results are the product of a stated choice analysis and not a revealed preference study, and therefore simply reasonable expectations, it is likely that the reported increase in demand in both quantity and price by potential consumers is overstated to some extent.
The benefits to the Australian Pig meat industry from an increase in demand for a hypothetical low cholesterol pork product
Creators: name: Slattery, Henry
name: Griffith, Garry R.
name: Malcolm, Bill
name: Dunshea, Frank
name: Slattery, Henry
name: Griffith, Garry R.
name: Malcolm, Bill
name: Dunshea, Frank
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Demand and Price Analysis
subject: Environmental Economics and Policy
subject: Farm Management
subject: Food Consumption/Nutrition/Food Safety
subject: Livestock Production/Industries
subject: Production Economics
subject: cholesterol
subject: pork
subject: Australia
subject: consumer willingness to pay
subject: demand

description: This is the third of a series of papers examining the potential economic effects from the introduction of a hypothetical low cholesterol pork product into the Australian market. Here, a newly updated pig meat model reported by Griffith et al. (2010) is used to model the industry wide impacts of the Bellhouse et al. (2010) survey results on consumer willingness to pay for this new pork product. Six different scenarios are examined that are combinations of a 10, 20 or 30 per cent increase in consumer demand, with and without a 10 per cent increase in the costs of producing the more valuable pork. The simulation results for the various scenarios indicate total annual industry benefits of some $450m for an increase in aggregate willingness to pay of 30 per cent and no cost increase, down to $88m for an increase in aggregate willingness to pay of 10 per cent and a 10 per cent cost increase. Australian consumers receive about 80 per cent of total benefits, pork producers receive about 7-8 per cent and all other market participants together receive about 12-13 per cent. These values provide a guide to the size of the annual investment that could be justified by pork producers to produce a pig that is low in cholesterol.
Old model, new problem: when should you update a model and what happens when you do?
Creators: name: Griffith, Garry R.
name: Malcolm, Bill
name: Mounter, Stuart W.
name: Slattery, Henry
name: Griffith, Garry R.
name: Malcolm, Bill
name: Mounter, Stuart W.
name: Slattery, Henry
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Environmental Economics and Policy
subject: Farm Management
subject: Industrial Organization
subject: Institutional and Behavioral Economics
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: new model
subject: old model
subject: decision making
subject: change in total surplus
subject: updating a model
subject: new technologies
subject: pork
subject: industry structure
subject: industry size

description: This paper is a summary of some of the considerations involved in applying an existing model to a new problem, in particular in deciding whether to update or not, and some of the issues involved in interpreting the output from the new application. Thus where you start from does influence where you end up. Both change in total surplus and to a lesser extent the distribution of this change in total surplus across sectors, depends on the price and quantity data which is used to define the initial equilibrium, even if elasticity values are the same. So careful consideration should be given to whether an existing model should be updated because updating a model does matter. The final point to restate is that consumers of pig meat end up being the winners from either cost saving technology at the farm level or new product development or advertising campaigns at the retail level. Even for new technology implemented at the farm level, producers only receive about 20 per cent of the total benefits. These issues are discussed in detail in Mounter et al. (2005a, 2005b). Therefore in relation to the new problem outlined above, we now have a modelling framework available for the task that has been tested in a number of different ways and that now reflects current industry structure and size. It should be a more appropriate framework than the original that was described in the papers by Mounter et al. (2004, 2005a, 2005b).
Computational Methods for the Construction of a Class of Noetherian Operators
Creators: name: Damiano, A.
name: Sabadini, I.
name: Struppa, D. C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics

description: This paper presents some algorithmic techniques to compute explicitly the noetherian operators associated to a class of ideals and modules over a polynomial ring. The procedures we include in this work can be easily encoded in computer algebra packages such as CoCoA and Singular.
Tunable positive and negative refraction in optically-induced photonic lattices
Creators: name: Rosberg, Christian R.
name: Neshev, Dragomir N.
name: Sukhorukov, Andrey A.
name: Kivshar, Yuri S.
name: Krolikowski, Wieslaw
Publisher: name: arXiv
Year: 2005
Subjects: subject: Optics (physics.optics)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We study tunable refraction of light in one-dimensional periodic lattices induced optically in a photorefractive crystal. We observe experimentally both positive and negative refraction of beams which selectively excite the first or second spectral bands of the periodic lattice, and demonstrate tunability of the output beam position by dynamically adjusting the lattice depth. At higher laser intensities, the beam broadening due to diffraction can be suppressed through nonlinear self-focusing while preserving the general steering properties.
description: 4 pages, 3 figures
Rising demand for livestock products in India: nature, patterns and implications
Creators: name: Vasant, P. Ghandi
name: Zhang-Yue, Zhou
name: Vasant, P. Ghandi
name: Zhang-Yue, Zhou
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Demand and Price Analysis
subject: Farm Management
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Livestock Production/Industries
subject: Production Economics
subject: livestock products
subject: demand and supply
subject: India
subject: trade implications

description: With a large population and recent growth in consumer income, India’s demand for food has increased. However, research continues to emphasise basic foods, and the demand for livestock products remains poorly understood. This study examines the demand for livestock products by Indian consumers using national sample survey data. The study shows that there has been a rapid rise in the demand for livestock products in India. Within the livestock products group, milk and milk products hold the dominant share. Our analysis further suggests that India’s rapid rise in the demand for livestock products may far outpace its domestic supply. Implications are discussed.
A census of ultraluminous X-ray sources in the local Universe
Creators: name: Kovlakas, Konstantinos
name: Zezas, Andreas
name: Andrews, Jeff J.
name: Basu-Zych, Antara
name: Fragos, Tassos
name: Hornschemeier, Ann
name: Lehmer, Bret
name: Ptak, Andrew
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Using the Chandra Source Catalog 2.0 and a newly compiled catalogue of galaxies in the local Universe, we deliver a census of ultraluminous X-ray source (ULX) populations in nearby galaxies. We find 629 ULX candidates in 309 galaxies with distance smaller than 40\,Mpc. The foreground/background contamination is ${\sim}20\%$. The ULX populations in bona-fide star-forming galaxies scale on average with star-formation rate (SFR) and stellar mass ($M_\star$) such that the number of ULXs per galaxy is $0.45^{+0.06}_{-0.09}\times\frac{\rm SFR}{\rm M_\odot\,yr^{-1}}{+}3.3^{+3.8}_{-3.2}\times\frac{M_\star}{\rm M_\odot}$. The scaling depends strongly on the morphological type. This analysis shows that early spiral galaxies contain an additional population of ULXs that scales with $M_\star$. We also confirm the strong anti-correlation of the ULX rate with the host galaxy's metallicity. In the case of early-type galaxies we find that there is a non-linear dependence of the number of ULXs with $M_\star$, which is interpreted as the result of star-formation history differences. Taking into account age and metallicity effects, we find that the predictions from X-ray binary population synthesis models are consistent with the observed ULX rates in early-type galaxies, as well as, spiral/irregular galaxies.
description: 21 pages, 19 figures, 6 tables. Accepted for publication in MNRAS
Neural Network Middle-Term Probabilistic Forecasting of Daily Power Consumption
Creators: name: Azzone, Michele
name: Baviera, Roberto
Publisher: name: arXiv
Year: 2020
Subjects: subject: Methodology (stat.ME)
subject: Signal Processing (eess.SP)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Middle-term horizon (months to a year) power consumption prediction is a main challenge in the energy sector, in particular when probabilistic forecasting is considered. We propose a new modelling approach that incorporates trend, seasonality and weather conditions, as explicative variables in a shallow Neural Network with an autoregressive feature. We obtain excellent results for density forecast on the one-year test set applying it to the daily power consumption in New England U.S.A.. The quality of the achieved power consumption probabilistic forecasting has been verified, on the one hand, comparing the results to other standard models for density forecasting and, on the other hand, considering measures that are frequently used in the energy sector as pinball loss and CI backtesting.
NSW Rural land performance: 1990-2008
Creators: name: Eves, Chris
name: Eves, Chris
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Community/Rural/Urban Development
subject: Environmental Economics and Policy
subject: Farm Management
subject: Land Economics/Use
subject: Production Economics
subject: Rural land
subject: rural economics
subject: rural land values
subject: rural land use
subject: rural land investment
subject: investment performance
subject: rural property prices.

description: This paper will address the total and capital return performance of a major agricultural area and compare these returns on the basis of both location of land and land use. The comparison will be used to determine if location or actual land use has a greater influence on rural property capital returns. This performance analysis is based on over 35,000 rural sales transactions. These transactions cover all market based rural property transactions in New South Wales, Australia for the period January 1990 to December 2008. Correlation analysis and investment performance analysis has also been carried out to determine the possible relationships between location and land use and subsequent changes in rural land capital values.
Building producer loyalty in Malaysia's fresh milk supply chain
Creators: name: Boniface, Bonaventure
name: Gyau, Amos
name: Stringer, Randy
name: Umberger, Wendy J.
name: Boniface, Bonaventure
name: Gyau, Amos
name: Stringer, Randy
name: Umberger, Wendy J.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Farm Management
subject: Industrial Organization
subject: Institutional and Behavioral Economics
subject: Marketing
subject: FOS: Economics and business
subject: Research and Development/Tech Change/Emerging Technologies
subject: Research Methods/ Statistical Methods
subject: Teaching/Communication/Extension/Profession
subject: dairy
subject: Malaysia
subject: customer base
subject: competence trust
subject: suppliers trust
subject: collaborative communication

description: The paper presents results from a survey of 133 dairy producers in Malaysia, and identifies how Malaysian milk buyers can build a loyal customer base with their suppliers as a means to secure uninterrupted milk supplies. A structural equation model was conducted to test the conceptual model using AMOS 17.0 software. The results show that whereas timely and collaborative communication, price satisfaction and cultural fit influence positively suppliers’ contractual and competence trust in their buyers, power dependency negatively influences competence trust. Furthermore, suppliers’ trust in their buyers will eventually lead to loyalty. The principal implication is that milk processors and other buyers need to engage in collaborative communication with the dairy farmers to ensure continuous and uninterrupted supply.
Listen, do you hear me? : homeless girls’ experiences with child protection services in a British Columbian semi-rural community
Creators: name: DeLeenheer, Irene
Publisher: name: University of British Columbia
Year: 2009

description: This qualitative study was conducted in 2003-2004 to explore homeless girls' experiences with social services, specifically child protection. The focal point of the study was the girls' initial contact with child protection services while in crisis, and the consequences of that interaction. However, exploring the context of the girls' lives was crucial to gaining in-depth understanding of homeless girls' needs. The fundamental questions addressed by this research were: What are homeless girls' perceptions of their needs, and what are the best ways to meet those needs? The grounded theory research was conducted from a feminist perspective and included individual in-depth interviews of five homeless girls ranging in age from thirteen to eighteen, who were living in a semirural area of British Columbia. The sample was located through local social workers employed in non-profit agencies outside of the government child welfare system (third party informants). These workers had a long-standing trust relationship with the girls, which had been established before the girls left home. The two main themes that emerged from the interview data were No Safe Place and Safe Place. Although they were desperate for help, these girls encountered a system that continued to leave them alarmingly 'at risk'. The girls found the system disbelieving, unresponsive, disempowering, inflexible, and traumatizing. The conclusion reached was that needs-based planning is essential, and that homeless girls must be involved in determining their own solutions in order for social services to be helpful. Despite their negative experiences, the girls wanted not only to help themselves, but also to "help other girls out there". And they retained many hopes for their own futures.
Light Mesons on the Light Front
Creators: name: Naito, K.
name: Maedan, S.
name: Itakura, K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the properties of light mesons in the scalar, pseudo-scalar, and vector channels within the light-front quantization, by using the (one flavor) Nambu--Jona-Lasinio model with vector interaction. After taking into account the effects of chiral symmetry breaking, we derive the bound-state equation in each channel in the large N limit (N is the number of colors), which means that we consider the lowest q\bar{q} Fock state with the constituent quark and antiquark. By solving the bound-state equation, we simultaneously obtain a mass and a light-cone (LC) wavefunction of the meson. While we reproduce the previous results for the scalar and pseudo-scalar mesons, we find that, for a vector meson, the bound-state equations for the transverse and longitudinal polarizations look different from each other. However, eventually after imposing a cutoff which is invariant under the parity and boost transformations, one finds these two are identical, giving the same mass and the same (spin-independent) LC wavefunction. When the vector interaction becomes larger than a critical value, the vector state forms a bound state, whose mass decreases as the interaction becomes stronger. While the LC wavefunction of the pseudo-scalar meson is broadly distributed in longitudinal momentum (x) space, that of the vector meson is squeezed around x=1/2.
description: 34 pages, 5 figures, minor modification, to appear in Phys. Rev. D
Spin-current-induced charge current
Creators: name: Jung, Soon-Wook
name: Lee, Hyun-Woo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We show that the injection of a pure spin current (not accompanied by charge current) into a ring can induce a circulating charge current in the ring, provided that transport coefficients of the ring are spin-dependent and inhomogeneous. As an example, we consider a hybrid ferromagnet(F)-normal metal(N) ring system and calculate the magnitude of the charge current induced by the pure spin current injection. This phenomenon may have relevance for spintronic applications.
description: 15pages, 3figures
The metabolic response of individuals varying in aerobic fitness to acute hypoxia and acclimatization to moderate altitude
Creators: name: Beatty, Cheryl
Publisher: name: University of British Columbia
Year: 2009

description: The concentrations of high-energy phosphate metabolites and lactate were monitored during and following exercise in ten male subjects varying in endurance fitness status throughout a 3-week moderate altitude acclimatization (3,800m) protocol, in order to determine (1) if metabolic control is altered with altitude acclimatization, and (2) how the metabolic response at altitude varies between fitness groupings. Venous blood lactate and cardiorespiratory measurements were taken during incremental and submaximal (70% relative V[sub O]₂ max) cycling exercise and recovery at sea-level before (PRE) and after (POST) acclimatization, and at altitude upon immediate exposure (AH) and following acclimatization (ACC).³¹ Phosphorus nuclear magnetic resonance spectroscopy was used to measure relative intramuscular phosphocreatine (PCr) and inorganic phosphate (Pi) concentrations, and pH during and following incremental plantar flexion exercise to fatigue, under normoxic and hypoxic (F₁O₂ = 13.8%) conditions. In the untrained group, PCr levels tended to decline, the rate of PCr recovery was delayed, and blood lactate concentrations and P[sub i] /PCr (estimate of ADP[sub free]) were increased when comparing AH to PRE levels. In ACC, PCr levels, PCr recovery rates, lactate concentrations, and P/PCr returned to PRE values, and lactate levels and P[sub i]/PCr decreased further under POST exercise conditions. In the trained subject group, PCr recovery rates, PCr levels and P/PCr were unaltered between test conditions, and lowered lactate concentrations did not persist under POST conditions, as observed in the untrained group. Furthermore, the untrained group displayed lower heart rates, higher minute ventilation values, and improvements in the rate of lactate recovery and maximal oxidative capacity during exercise in POST compared to PRE, while all cardiorespiratory and metabolic measurements returned to PRE levels in the trained group. These results suggest that following altitude acclimatization, metabolic control improved in the untrained group, resulting in a lowering of glycolytic flux and lactate production during exercise. In contrast, the exposure to altitude had no effect on the trained subject group, suggesting that this group exhibited an 'optimal' level of metabolic control prior to altitude exposure, or the hypoxic stimulus was insufficient to activate further change. In conclusion, the biochemical and/or physiological adjustments that occurred in the untrained subjects during the acclimatization protocol resulted in a tightening of metabolic control during exercise, normally characteristic of changes seen following endurance training, accounting for the lower perturbation of high-energy phosphate metabolites and reduced lactate levels following altitude acclimatization.
On the mass transfer in AE Aquarii
Creators: name: Ikhsanov, N. R.
name: Neustroev, V. V.
name: Beskrovnaya, N. G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The observed properties of the close binary AE Aqr indicate that the mass transfer in this system operates via the Roche lobe overflow mechanism, but the material transferred from the normal companion is neither accreted onto the surface of the white dwarf nor stored in a disk around its magnetosphere. As previously shown, such a situation can be realized if the white dwarf operates as a propeller. At the same time, the efficiency of the propeller action by the white dwarf is insufficient to explain the rapid braking of the white dwarf, which implies that the spin-down power is in excess of the bolometric luminosity of the system. To avoid this problem we have simulated the mass-transfer process in AE Aqr assuming that the observed braking of the white dwarf is governed by a pulsar-like spin-down mechanism. We show that the expected H_alpha Doppler tomogram in this case resembles the tomogram observed from the system. We find that the agreement between the simulated and the observed tomograms is rather good provided the mean value of the mass-transfer rate ~5x10^16 g/s. Three spatially separated sources of H_alpha emission can be distinguished within this approach. The structure of the tomogram depends on the relative contributions of these sources to the H_alpha emission and is expected to vary from night to night.
description: 12 pages, 3 figures (6 eps files). Published in A&A. The paper with high resolution images can be downloaded from http://urania.it.nuigalway.ie/papers/ae_aqr.ps.gz
Microwave-induced flow of vortices in long Josephson junctions
Creators: name: Barkov, F. L.
name: Fistul, M. V.
name: Ustinov, A. V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report experimental and numerical study of microwave-induced flow of vortices in long Josephson junctions at zero dc magnetic field. Our intriguing observation is that applying an ac-bias of a small frequency $f \ll f_p $ and sufficiently large amplitude changes the current-voltage characteristics ($I$-$V$ curve) of the junction in a way similar to the effect of dc magnetic field, well known as the flux-flow behavior. The characteristic voltage $V$ of this low voltage branch increases with the power $P$ of microwave radiation as $V_{s}\propto P^α$ with the index $α\simeq 0.5 $. Experiments using a low-temperature laser scanning microscope unambiguously indicate the motion of Josephson vortices driven by microwaves. Numerical simulations agree with the experimental data and show strongly {\it irregular} vortex motion. We explain our results by exploiting an analogy between the microwave-induced vortex flow in long Josephson junctions and incoherent multi-photon absorption in small Josephson junctions in the presence of large thermal fluctuations. In the case of long Josephson junctions the spatially-temporal chaos in the vortex motion mimics the thermal fluctuations. In accordance with this analogy, a control of the intensity of chaos in a long junction by changing its damping constant leads to a pronounced change in the shape of the $I$-$V$ curve. Our results provide a possible explanation to previously measured but not yet understood microwave-driven properties of intrinsic Josephson junctions in high-temperature superconductors.
description: 8 pages, 13 figures
Almeirão: características, como plantar e os benefícios para a saúde
Creators: name: Popoff, Sandra
Publisher: name: Zenodo
Year: 2024
Subjects: jornalismo rural
agricultura sustentável

description: Você já imaginou ter um almeirão fresquinho direto do seu jardim, para temperar suas receitas e turbinar a sua saúde? 🌱 Acredite, essa experiência está ao seu alcance, e é mais fácil do que você pensa!

Essa hortaliça, conhecida por seu sabor levemente amargo, é um verdadeiro elixir de bem-estar. Rico em vitaminas, minerais e antioxidantes, ele fortalece o sistema imunológico, melhora a digestão e deixa o corpo cheio de energia.

Mas e o cultivo?

Calma, não precisa ser um expert em agricultura para ter almeirão em casa! A chave está na preparação do terreno e em alguns truques da natureza.

Esta planta é relativamente fácil de cultivar e não exige muitos cuidados especiais, tornando-a ideal tanto para jardineiros iniciantes quanto para os mais experientes. Plantar almeirão em vasos também é uma prática que está ganhando popularidade, especialmente entre aqueles que possuem espaços limitados.

Neste artigo, você encontrará tudo o que precisa saber sobre o almeirão: desde suas características e benefícios para a saúde até dicas práticas de cultivo em vasos e canteiros. Continue lendo para descobrir como incorporar essa hortaliça detox em sua vida e, de quebra, aprenda uma receita deliciosa para aproveitar ao máximo o sabor do almeirão.
Additional file 1 of The impact of body mass index on adaptive immune cells in the human bone marrow
Creators: name: Pangrazzi, Luca
name: Naismith, Erin
name: Miggitsch, Carina
name: Jose’ Antonio Carmona Arana
name: Keller, Michael
name: Grubeck-Loebenstein, Beatrix
name: Weinberger, Birgit
Publisher: name: figshare
Year: 2020
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1.
Benchmarking near-term devices with quantum error correction
Creators: name: Wootton, James R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Now that ever more sophisticated devices for quantum computing are being developed, we require ever more sophisticated benchmarks. This includes a need to determine how well these devices support the techniques required for quantum error correction. In this paper we introduce the \texttt{topological\_codes} module of Qiskit-Ignis, which is designed to provide the tools necessary to perform such tests. Specifically, we use the \texttt{RepetitionCode} and \texttt{GraphDecoder} classes to run tests based on the repetition code and process the results. As an example, data from a 43 qubit code running on IBM's \emph{Rochester} device is presented.
description: Source files include data from 'ibmq_melbourne' and 'ibmq_rochester' devices
General non-asymptotic and asymptotic formulas in channel resolvability and identification capacity and their application to wire-tap channel
Creators: name: Hayashi, Masahito
Publisher: name: arXiv
Year: 2005
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Several non-asymptotic formulas are established in channel resolvability and identification capacity, and they are applied to wire-tap channel. By using these formulas, the $ε$ capacities of the above three problems are considered in the most general setting, where no structural assumptions such as the stationary memoryless property are made on a channel. As a result, we solve an open problem proposed in Han & Verdu and Han. Moreover, we obtain lower bounds of the exponents of error probability and the wire-tapper's information in wire-tap channel.
Additional file 1 of Do offenders avoid offending near home? A systematic review of the buffer zone hypothesis
Creators: name: Bernasco, Wim
name: Dijke, Remco Van
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Neuroscience
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1: Table S1. The 33 articles selected for analysis.
Additional file 7 of Characterization of splenic MRC1hiMHCIIlo and MRC1loMHCIIhi cells from the monocyte/macrophage lineage of White Leghorn chickens
Creators: name: Keesun Yu
name: Gu, Min Jeong
name: Pyung, Young Jin
name: Ki-Duk Song
name: Park, Tae Sub
name: Han, Seung Hyun
name: Yun, Cheol-Heui
Publisher: name: figshare
Year: 2020
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 7. Schematic diagram of the gentamicin protection assay. MRC1loMHCIIhi (filled) and MRC1hiMHCIIlo (open) cells were sorted by a FACS Aria II and coincubated with E. coli K99 for 1 h. After co-incubation, gentamicin (200 μg/mL) was used to kill the extracellular bacteria for 10 min (uptake assay) or 60 min (clearance assay). Cell lysates were incubated overnight on TSA agar to measure the CFU value.
Additional file 1 of Effectiveness of training methods for delivery of evidence-based psychotherapies: a systematic review
Creators: name: Valenstein-Mah, Helen
name: Greer, Nancy
name: McKenzie, Lauren
name: Hansen, Lucas
name: Strom, Thad Q.
name: Stirman, Shannon Wiltsey
name: Wilt, Timothy J.
name: Kehle-Forbes, Shannon M.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1: Appendix: Table 1. Study descriptions and Cochrane risk of bias rating. Table 2 Overview of included studies’ findings (k = 28). Table 3a Study outcomes: participant adherence/EBP skill acquisition, competence, and fidelity. Table 3b Study outcomes: participant satisfaction, EBP treatment knowledge, and EBP adoption. Table 3c Study outcomes: client clinical outcomes and costs of training.
Tensor network based machine learning of non-Markovian quantum processes
Creators: name: Guo, Chu
name: Modi, Kavan
name: Poletti, Dario
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show how to learn structures of generic, non-Markovian, quantum stochastic processes using a tensor network based machine learning algorithm. We do this by representing the process as a matrix product operator (MPO) and train it with a database of local input states at different times and the corresponding time-nonlocal output state. In particular, we analyze a qubit coupled to an environment and predict output state of the system at different time, as well as reconstruct the full system process. We show how the bond dimension of the MPO, a measure of non-Markovianity, depends on the properties of the system, of the environment and of their interaction. Hence, this study opens the way to a possible experimental investigation into the process tensor and its properties.
description: 5 pages, 3 figures
Some issues affecting the macroeconomic environment for the agricultural and resource sectors: the case of fiscal policy
Creators: name: O'Mara, L. Paul
name: Bartley, Scott W.
name: Ferry, R.N.
name: Wright, Robert S.
name: Calder, M.F.
name: Douglas, Justin J.
name: O'Mara, L. Paul
name: Bartley, Scott W.
name: Ferry, R.N.
name: Wright, Robert S.
name: Calder, M.F.
name: Douglas, Justin J.
Publisher: name: Unknown
Year: 1999
Subjects: Agricultural Finance

description: The impact of structural changes in fiscal policy on macroeconomic stability in Australia and other developed economies since the mid‐1970s is assessed. The evidence points to a destabilising influence from fiscal policy from the mid‐1970s to the mid‐1980s, with a more stabilising influence since then. Within Australia, there is some evidence that structural changes to fiscal policy may have helped to stabilise interest rates and the real exchange rate over the period since the mid‐1980s. However, this stabilising influence on the real exchange rate may have reduced the extent to which real exchange rate movements have countervailed world commodity price changes in Australian dollar terms.
A COMPARATIVE STUDY OF THE SYNONYMOUS RELATIONSHIPS BETWEEN FRIENDSHIP/ENMITY IN ENGLISH AND UZBEK FOLK PROVERBS
Creators: name: Ergasheva, Gulzoda
Publisher: name: Zenodo
Year: 2025

description: This thesis investigates the concepts of friendship and enmity as expressed through folk proverbs in both English and Uzbek cultures. It examines the synonymous relationships within these concepts, comparing how the two languages represent the dynamics of human relationships and moral values. By analyzing a selection of proverbs, the study aims to highlight common themes regarding loyalty, trust, and conflict while considering cultural nuances in the expressions of these themes. This analysis uncovers both universal elements and culturally specific interpretations of friendship and enmity, offering insights into the moral fabric of both societies. The research demonstrates the role of proverbs as reflections of cultural norms, social practices, and emotional intelligence.
Sur les automorphismes et la rigidite des groupes de Coxeter a angles droits
Creators: name: Castella, Anatole
Publisher: name: arXiv
Year: 2004
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F55

description: By underlying the commutation relation in a right-angled Coxeter group W, we recover the fact that right-angled Coxeter groups are rigid and we describe the second subgroup of Aut(W) that appears in the decomposition of Aut(W) into a semi-direct product established by J. Tits in "Sur le groupe des automorphismes de certains groupes de Coxeter" (Journal of Algebra 113, (1988), 346-357). ----- En mettant l'accent sur la relation de commutation dans un groupe de Coxeter a angles droits W, on redemontre le fait que les groupes de Coxeter a angles droits sont rigides et on decrit le second sous-groupe de Aut(W) apparaissant dans la decomposition en produit semi-direct de Aut(W) etablie par J. Tits dans "Sur le groupe des automorphismes de certains groupes de Coxeter"(Journal of Algebra 113, (1988), 346-357).
description: 20 pages, french