Miracle-dz/UniFAR-FTUs huggingface dataset:
Oil-Filled MV/LV Power-Transformer Behavior in Narrow-Band Power-Line Communication Systems

The aim of this paper is to characterize oil-filled power transformers in the narrow-band power-line communication (PLC) frequency range of 50-150 kHz. A new model is proposed for such type of a transformer, in the aforementioned frequency range of interest, in order to study its influence on the signal transmission and to investigate the possibility that the PLC signal can cross the power transformer itself. The new model is simpler than those previously proposed in literature, and it can be used in the whole frequency range available for NB PLC according to the CENELEC EN 50065-1 A-band. In order to validate the model, simulation and measurement results are compared for four oil-filled power transformers with different rated power values. A complete PLC system in the case of a medium-voltage (MV) power network is also simulated, in order to perform a preliminary evaluation of the influence of power transformers on the communication system. The MV overhead power line, the oil-filled power transformers, the MV signal coupling network, and two ST7540 frequency shift keying (FSK) power-line transceivers are included in the simulated system. The performances of the complete PLC communication system are evaluated in the case of both MV to low voltage (LV) and LV to MV transmissions. The analysis is carried out by evaluating the signal attenuation, which is computed as the ratio between the received and transmitted voltage signals, in the case of different line lengths and carrier frequency values.
The road to external representation: the European Commission's activism in international air transport

Abstract This article argues that the role the Commission plays in European foreign policies goes beyond the execution of the competences delegated by the member states. The Commission is not just the external negotiator of the EU, it can also use its powers as the guardian of the Treaties to expand its foreign policy competences. The case study of international air transport illustrates how the Commission was able to obtain an external negotiation mandate in June 2003 to which member states were originally opposed. The analysis draws particular attention to the Commission's reliance on the European Court of Justice and to a cognitive strategy centred on the United States. By means of these two tools, the Commission was able to affect the default condition of member state preferences and reorient the focal point of intergovernmental negotiations.
Protein deposition in animals

The deposition of proteins in tissues of farm animals is a consequence of the balance of the rates of protein synthesis and degradation tissues. This turnover contributes to the energy costs of protein deposition. Protein metabolism is strongly influenced by the hormonal status of the animal and this is being exploited currently by the use of several hormones and hormone-like substances as growth promoters. Numerous factors control the extent of and rate of protein deposition in animals. This review is limited to a few selected areas which have special relevance to the production of edible protein by farm animals.
Internal communication for change: a complex challenge

Internal communication is a vital component in any change process and a major part of change management. This paper presents a qualitative study of a large industrial company and its change project. The paper contributes to our understanding of communication in change management projects with its description and analysis of the construction of project communication at this company as well as of the managers’ and other employees’ perception of it. The research emphasises that communication is a pivotal part of large change management projects while pointing to its complexity and many pitfalls. Thus, the paper advances the empirical and practical change management research.
Discrimination and Occupational Wage Differences in the Market for Unskilled Labor

Discusses a study that examined employment discrimination against African-Americans. Comparison between the background and status of whites and African-Americans in particular occupations across a range of companies; Effect of racial discrimination on the operation of a labor market; Wage and employment discrimination against African-Americans in janitorial work. (Abstract copyright EBSCO.)
Networking in comparative context

Abstract Networking has become a key theme in the research literature, reflecting a shift from government to governance. Though scholarship on this topic has grown apace, little evidence has been produced on the ways in which managerial networking manifests itself across national settings. Given this state of affairs, we explore whether managerial networking is a broad and common pattern in contemporary governance systems or contingent on setting. Analysis was undertaken from a sample of over 600 US public managers and 300 UK local officials. The results confirm that managerial networking is extensive and support the view that networking is a key management competence. While general networking behaviours are evident in the data presented, there was also variation, suggesting that managers are able to exercise choice and construct their networked environment to reflect local requirements.
Authenticated compressive sensing imaging

The CS (Compressive Sensing) theory has been widely implemented in many areas, the CSI (Compressive Sensing Imaging) method is one of them. In this paper, in order to design the authenticated CSI system, we have introduced the CSI method and the image authentication mechanisms. The design strategies would be also discussed. Then, the CS based MAC (CSMAC) has been implemented in the CSI system, which makes the authentication and the sensing processes in one step. Furthermore, in order to adapt the CSI system's property, the CSMAC is designed to tolerate the content-preserving manipulations but oppose the harmful ones, so that the information integrity is protected with the content robustness.
THE ECONOMIC TRADE-OFFS BETWEEN STOCKING FINGERLINGS AND STOCKERS: A MIXED INTEGER MULTI-STAGE PROGRAMMING APPROACH

This paper addresses the economic trade-offs associated with stocking varying sizes of fingerlings and stockers either purchased or produced on farm in catfish growout. A mixed integer-programming model of catfish growout was developed that included seven fingerling, six stocker, and eight foodfish production activities as well as options to purchase and sell fingerlings, stockers, and foodfish. Results showed that profits are maximized on farms of 102 ha and larger by adopting a three-phase production system that includes a stocker phase. On farms smaller than 102 ha, profits are maximized by understocking 17.5-cm fingerlings in multiple-batch. The choice of stocking fingerlings or stockers depended on the efficiency of the stocker production phase; at stocker FCRs of 2.4 or above or survivals less than 40%, stocking fingerlings in multiple-batch was more profitable than the three-phase system with stockers. Additional research is needed to develop farm-level datasets of the variability in key stocker production parameters to expand this model to explicitly evaluate the effect of risk on optimal management strategies.
Looking for performance: How innovation and strategy may affect market orientation models

Abstract Despite 20 years of research into various aspects of the ‘market orientation’ (MO) construct, doubt remains regarding the existence, nature and significancy of the relationship between MO and firm performance. To obtain more evidence some authors suggest including innovation in MO models. Debate continues to examine whether organizational strategy is an antecedent or a consequence of MO, whilst some argue that strategy moderates the MO–performance relationship. Furthermore, there are sectors of industry and geographies where the phenomenon has received very little investigation, even of an exploratory nature. This study aims to explore the MO–performance relationship and to value the effect of innovation in MO–performance models in a sector where MO was virtually unknown: the Spanish real estate industry. The magnitude of shifts taking place in this sector enhances its potential as a showcase for processes of anticipation and adaptation to the environment. This article also aims to shed some light on the question of whether strategy potentially moderates the MO– performance link. The principal implications of our findings are discussed.
Improved price index for condominiums

This paper proposes a hedonic apartment price index construction method that can increase the quality of price index data for condominiums in Sweden. Currently, the public condominium price index that different actors usually refer to is based on mean and median prices per square metre. With access to a unique database with the most recent transactions data from real estate agents firms, I estimate alternative hedonic price indexes, and compare them both with each other, as well as with arithmetic mean and median price indexes.
Subunit IV of yeast cytochrome c oxidase: cloning and nucleotide sequencing of the gene and partial amino acid sequencing of the mature protein.

The six small subunits (IV‐VII, VIIa, VIII) of yeast cytochrome c oxidase are encoded by nuclear genes and imported into the mitochondria. We have isolated the gene for subunit IV from a yeast genomic clone bank and determined its complete nucleotide sequence. We have also isolated subunit IV from purified yeast cytochrome c oxidase and determined most of its amino acid sequence which confirms the positioning of approximately 90% of the amino acid residues. The sequence comparison shows that the coding sequence of the gene lacks introns and that subunit IV is made as a precursor with an amino‐terminal extension of 25 residues, five of which are basic and none of them acidic. Precursor processing involves cleavage of a Leu‐Gln bond.
Voter Behavior in California’s Top Two Primary

California’s Top Two Primary in 2012 gave voters the chance to cross party lines to vote for the candidate of their choice in what was the equivalent of a two-stage election with run-off. The top two vote getters in each race, independent of party, proceeded to the general election. Using a panel survey design I examine the behavior of voters under this system at both the primary (first) stage and general election (second) stage. I estimate how many voters chose to cross party lines, and how many did so for strategic reasons. I then examine how voters behaved when faced with different scenarios in the general election regarding the availability of their preferred candidate, or any candidate representing their party. I find that surprisingly few voters crossed party lines, and relatively few who did so did so for strategic reasons. If such low levels of crossover continue, the impact of the top two primary on candidate ideology will likely be small. At the general election stage, voters who were faced with two candidates of the opposing party often chose to simply abstain from such races at a high rate.
Influence of logging on the effects of wildfire in Siberia

The Russian boreal zone supports a huge terrestrial carbon pool. Moreover, it is a tremendous reservoir of wood products concentrated mainly in Siberia. The main natural disturbance in these forests is wildfire, which modifies the carbon budget and has potentially important climate feedbacks. In addition, both legal and illegal logging increase landscape complexity and affect burning conditions and fuel consumption. We investigated 100 individual sites with different histories of logging and fire on a total of 23 study areas in three different regions of Siberia to evaluate the impacts of fire and logging on fuel loads, carbon emissions, and tree regeneration in pine and larch forests. We found large variations of fire and logging effects among regions depending on growing conditions and type of logging activity. Logged areas in the Angara region had the highest surface and ground fuel loads (up to 135 t ha−1), mainly due to logging debris. This resulted in high carbon emissions where fires occurred on logged sites (up to 41 tC ha−1). The Shushenskoe/Minusinsk and Zabaikal regions are characterized by better slash removal and a smaller amount of carbon emitted to the atmosphere during fires. Illegal logging, which is widespread in the Zabaikal region, resulted in an increase in fire hazard and higher carbon emissions than legal logging. The highest fuel loads (on average 108 t ha−1) and carbon emissions (18–28 tC ha−1) in the Zabaikal region are on repeatedly burned unlogged sites where trees fell on the ground following the first fire event. Partial logging in the Shushenskoe/Minusinsk region has insufficient impact on stand density, tree mortality, and other forest conditions to substantially increase fire hazard or affect carbon stocks. Repeated fires on logged sites resulted in insufficient tree regeneration and transformation of forest to grasslands. We conclude that negative impacts of fire and logging on air quality, the carbon cycle, and ecosystem sustainability could be decreased by better slash removal in the Angara region, removal of trees killed by fire in the Zabaikal region, and tree planting after fires in drier conditions where natural regeneration is hampered by soil overheating and grass proliferation.
What is driving economic and financial success of US cow-calf operations?

Purpose - – The purpose of this paper is to determine the drivers of economic financial success of US cow-calf operations. Design/methodology/approach - – This research uses a system of equations (DuPont analysis) in conjunction with 2008 farm-level data from the US Department of Agriculture's Agricultural Resource Management Survey to evaluate the factors driving cow-calf profitability, namely net profit margins, asset turnover ratio, and asset-to-equity ratio. Findings - – The study finds that the main drivers of return on equity are region, number of harvested acres on the farm, diversification of the farm, operator off-farm work, spousal off-farm work, and adoption of technologies. Of these factors, those for which producers can make short-term adjustments include off-farm work decisions and adoption of technologies. Longer-term adjustments can be made for farm diversification. Originality/value - – To the authors’ knowledge, no existing research has used farm-level data across US production regions to examine the factors affecting returns to equity of US cow-calf operations. These research results may be used to identify strategies producers can use to improve their farm's economic viability, areas where extension services can assist farmers in making better financial decisions and economic factors that are likely to lead to structural changes in the beef industry.
Lean Production: Experience among Australian Organizations

Presents the findings of a study which investigated the adoption of lean production methods in Australian manufacturing industry. Data were gathered through a telephone survey from 51 companies representing a range of industry sectors. The study found that a large majority of the companies were practising lean production methods. Discusses the organizational changes which had occurred in the organizations as a result of the introduction of lean production. Discusses the change drivers of the lean production programme, benefits achieved, difficulties experienced and future trends.
Perceived discrimination, serotonin transporter linked polymorphic region status, and the development of conduct problems

Abstract This study examined the prospective relations of adolescents' perceptions of discrimination and their genetic status with increases in conduct problems. Participants were 461 African American youths residing in rural Georgia (Wave 1 mean age = 15.5 years) who provided three waves of data and a saliva sample from which a polymorphism in the SCL6A4 (serotonin transporter [5-HTT]) gene polymorphism known as the 5-HTT linked promoter region (5-HTTLPR) was genotyped. Data analyses using growth curve modeling indicated that perceived discrimination was significantly related to the slope of conduct problems. As hypothesized, interactions between perceived discrimination and genetic status emerged for male but not female youths. Compared with those carrying two copies of the long allele variant of 5-HTTLPR, male youths carrying one or two copies of its short allele variant evinced higher rates of conduct problems over time when they perceived high levels of racial discrimination. These findings are consistent with resilience and differential susceptibility propositions stating that genes can both foster sensitivity to adverse events and confer protection from those events.
Fatty acylation of proteins.

ESTERIFICATION TO AN AMINO ACID SIDE CHAIN . 613 Oxyesters 613 Cysteine Thioesters. 614 Unspecified Ester Linkages . 619 Enzymology of Esterification . 619 ras Proteins . 621 AMIDE LINKAGES 622 N-Terminal Myristylation . 622 Other Fatty Acyl Amide Linkages . 628
Information governance: in search of the forgotten grail

Information governance as an approach to better govern the use of information within and outside an organization is rapidly gaining popularity. A common and scientific ground for this approach has not yet been formulated. In this report the authors describe a unific definition for information governance, extending the common, one-dimensional approach into a more generic statement. Starting from the wellknown principles of IT-governance the authors further explore the aspects of both information and governance. Five hypotheses are proposed to give ground to the use of information governance. These hypotheses will be basis for further research.
Acquisition of a biped walking pattern using a Poincare map

We propose a model-based reinforcement learning algorithm for biped walking in which the robot learns to appropriately place the swing leg. This decision is based on a learned model of the Poincare map of the periodic walking pattern. The model maps from a state at a single support phase and foot placement to a state at the next single support phase. We applied this approach to both a simulated robot model and an actual biped robot. We show that successful walking patterns are acquired.
Rubber-Degrading Enzyme from a Bacterial Culture

Rubber-degrading activity was found in the extracellular culture medium of Xanthomonas sp. strain 35Y which was grown on natural rubber latex. Natural rubber in the latex state was degraded by the crude enzyme, and two fractions were separately observed by gel permeation chromatography of the reaction products. One fraction was of higher molecular weight (HMW) with a very wide MW distribution from 103 to 105, and the other fraction was of lower molecular weight (LMW) with a MW of a few hundred. 1H-nuclear magnetic resonance spectra of the partially purified fractions were those expected of cis-1,4-polyisoprene mixtures with the structure OHC-CH2-(-CH2-C(-CH3) = CH-CH2-)n-CH2-C(=O)-CH3, with average values of n of about 113 and 2 for HMW and LMW fractions, respectively. The LMW fraction consisted mostly of one component in gas-liquid chromatography as well as in gel permeation chromatography, and the main component was identified as 12-oxo-4,8-dimethyl trideca-4,8-diene-1-al (acetonyl diprenyl acetoaldehyde, AlP2At) by 13C-nuclear magnetic resonance and gas chromatography-mass spectra. Not only the latices of natural and synthetic isoprene rubber, but also some kinds of low-MW polyisoprene compounds of cis-1,4 type, were degraded by the crude enzyme. The rubber-degrading reaction was found to be at least partly oxygenase catalyzed from the incorporation of 18O into AlP2At under an 18O2 atmosphere.
Supporting the Principles of Sustainable Development in Tourism and Ecotourism: Government's Potential Role

This paper articulates the principles of sustainable development, sustainable tourism, and ecotourism, and their interrelationship, and explains the critical difference between growth and development, which are commonly confused. It discusses numerous activities during the course of the early 1990s, which arguably moved the government into a 'strong sustainability' mode, through its support of the principles of sustainable development, tourism, and ecotourism. The paper also briefly describes the reduction of government activities to support principles of sustainable development over the latter part of the decade, which moved the government to a weak sustainability mode. Supportive activities include integrated planning; cooperation and partnerships; public consultation; proactive research and education; environment protection and conservation; management of resources, impact and visitors; and green standards activities. The benefits for government support of principles of sustainability are briefly described.
Calendar effects in the London Stock Exchange FT-SE indices

This paper investigates the presence of various anomalies, or 'calendar effects', in the FT-SE 100, Mid 250 and 350 indices, and the accompanying industry baskets, for the period January 1986 to October 1992. Our results broadly support similar evidence found for many countries concerning stock market anomalies, for the 'January', 'weekend', 'half of the month' and 'holiday' effects all appear to be present in at least some of the indices.
Anxiety and the interpretation of ambiguity: a text comprehension study.

Beck's influential cognitive account of anxiety has led to the prediction that individuals vulnerable to anxiety should favor threatening interpretations of ambiguity (e.g., Beck & Clark, 1988; Beck, Emery, & Greenberg, 1986). The current study introduces a novel adaptation of the RSVP technique, previously used in text comprehension research, to evaluate this hypothesis. Results suggest that a group of 24 high trait anxious students did indeed selectively impose threatening interpretations on unconstrained ambiguous sentences. In contrast, a matched group of 24 low trait anxious students appeared to selectively impose non-threatening interpretations on such ambiguous sentences. These findings are fully consistent with the predicted anxiety-linked interpretative bias. Specific testable hypotheses are developed concerning the types of interpretative idiosyncrasies that plausibly may contribute to pathological anxiety.
Social Responsibility is Free & Sustainable - Why Doing Good While Doing Business is Good Business

Abstract CSR is good for business in two broad ways: the generation of revenues and investment through the creation of a positive image; and the avoidance of loss, through the avoidance of a negative image. We look in particular from a marketing and quality assurance position in taking this view of CSR as value creator and loss avoider. Specifically, how CSR relates to trust, and can be a driver of trust. Trust is a crucial area of business, not particularly well-explored in the literature. Trust relates to how an organization relates to its investors, its employees, its recruits, its customers, and even its regulators. Trust is a key factor in facilitating transactions and building sustainable relationships.
Zmiany cen na międzynarodowym rynku oleistych w okresie upowszechnia się odmian zmodyfikowanych genetycznie

W artykule przedstawiono zmiany na międzynarodowym rynku oleistych w okresie upowszechniania odmian zmodyfikowanych genetycznie. Pomimo odmiennych regulacji krajowych rynku GMO poziom obrotów międzynarodowych oleistymi szybko wzrastał. Stwierdzono jednak osłabienie związków przyczynowych pomiędzy europejskimi cenami oleistych a cenami soi w USA.