Miracle-dz/UniFAR-FTUs huggingface dataset:
When helping others is harmful for yourself : moderating effects of motives on the relationship between organizational citizenship behaviour and negative outcomes

Most studies about organizational citizenship behaviour (OCB) focus on the positive consequences, while the negative consequences for employees seem to be underexposed. The extent to which OCB is related to negative consequences, may be contingent upon the specific motives employees have. This study examines the moderating effect of motives on the relationship between OCB and negative consequences (i.e. role overload, stress and work-family conflict). In total, 85 employees participated in this study by filling out a questionnaire. We found evidence that indicates a positive relationship between OCB and negative outcomes. More specifically, results indicate that the positive relationship between OCB and stress was moderated by affective commitment. This relationship was moderated such that the relationship between OCB and stress was weaker for employees with high levels of affective commitment. In addition, results indicated that continuance commitment was a moderator such that the relationship between OCB and stress was stronger for employees with high levels of continuance commitment. The results also revealed that cooperative norms had a moderating effect on the relationship between OCB and work-family conflict, such that the relationship was stronger for employees with high levels of cooperative norms. Implications for future research are discussed.
Regional development under socialism: evidence from Yugoslavia

This paper analyses the patterns of regional growth and development in Yugoslavia, under the most decentralised socialist system that ever existed. My analysis reveals that despite government efforts to the contrary, socialist economic development in Yugoslavia resulted in divergence rather than in convergence between the constituent regions. I find that regional income divergence was caused by the failure of the less developed regions to converge towards the employment rates and total factor productivities of the more developed regions. I interpret these failures as symptoms of a single underlying problem: a capital intensity bias inherent to the governing objective of labour-managed firms. Socialist Yugoslavia moved from having one central plan, to having many mutually competitive plans. While on aggregate this may have created a net positive productivity outcome compared to other socialist economies, it created unique distortions. The decentralisation policies were implemented with the aim of enhancing regional cohesion and social stability. They led, however, to exactly opposite outcomes
A comparative analysis of the use of different zone models to predict the mass smoke flow for axisymetric and spill plumes

Sanderson [1]examined the theoretical basis for and the experimentation supporting the predictive smoke zone models currently being used in fire engineering design that are cited, in nationally and internationally accepted guidance documents, to support the increasing use of performance-based building codes/regulations throughout the world. This critical examination identified anomalies: 1) between different researcher’s results, when considering the same fire environment, and 2) areas where the models used in guidance documents have limited empirical support. The variance between models was examined by the parametric variation of critical data input parameters the impact of which indicated that the most recent research produced models that predict a lower level of mass smoke flow than the earlier models. It may be suggested that the more recent research, building on previous work, produces models that can be used with a greater level of confidence however there is no robust evidence to support this. This paper illustrates the variances between the model outputs by means of a case study. Currently there is a move towards the use of Computational Fluid Dynamic modelling of fire. However, given the limited validation of these models in the area of smoke movement and the computer time and power required to run these models, there is still a place in fire engineering design for the zone model. As an increasing number of countries adopt performance building and fire codes/regulations and given the consequent need for predictive mass smoke flow models in which regulators, fire engineers and society can have confidence, it is concluded that the research supporting zone modelling of fire should be extended. This research should be robust and transparent in order to either produce models that are substantially more acceptable than those currently being used or to provide more confidence in models.
On approximations for the distribution of the time of first level crossing

This paper is an overview of the classical level crossing problem which is studied extensively in the literature and is fundamental in many branches of applied probability. We discuss a number of approximations with an emphasis on their performance, methods of justification and technical conditions which are required in these methods, including a new approximation called "inverse Gaussian". It is derived by a new method, is fruitful for solving related problems, and is valid under mild regularity conditions. We emphasize its novelty and boons.
Limits in astrometric accuracy induced by surface brightness asymmetries in red supergiant stars

Aims. Surface brightness asymmetries are a very common feature of stars. Among other effects they cause a difference between the projected barycentre and photocentre. The evolution of those surface features makes this difference time-dependent. In some cases, e.g. for supergiant stars, the displacement can be a non-negligible fraction of the star radius R, and if R > 1 AU, of the parallax. Methods. We investigate the impact of surface brightness asymmetries on both the Gaia astrometric solution and the data processing flow with a theoretical approach. Results. We show that when the amplitude of the displacement is comparable to the epoch astrometric precision, the resulting astrometric solution of a genuine single star may be, in some cases, of low quality (with some parameters up to 10σ off). In this case, we provide an analytical prediction of the impact of the photocentre motion on both χ 2 and the uncertainty in the astrometric parameters. Non-single star solutions are found, if allowed for the closest stars. A closer look at the parameters of the orbital solutions reveals however that they are spurious (since the semi-major axis is smaller than either its error or the stellar radius). It is thus possible to filter out those spurious orbital solutions. Interestingly, for the stocastic solutions, the stochastic noise appears to be a good estimate of the photocentric noise. © 2011 ESO.
Polyphasic identification of clinical Candida albicans in the Philippines

Candida albicans is opportunistic pathogen causing invasive and noninvasive diseases. This yeast is not well-studied in the Philippines. Considering that identification to species level is necessary for empirical treatment of diseases it causes, and the difficulty in its identification using phenotypic methods, use of polyphasic assays is explored. Increasing yeast infections and drug resistance worldwide necessitate isolation and identification of C. albicans in its surveillance in the country. Study identified clinical isolates from two tertiary hospitals in Metro Manila using phenotypic and genotypic methods. Twenty-six clinical isolates were identified phenotypically using germ tube and chlamydospore production and carbon assimilation of glucose, maltose, galactose, and sucrose. Genotypic identification was done by determining internal transcribed space (ITS) sequences and construction of neighbor-joining tree using ITS sequences. Twelve isolates were phenotypically identified as C. albicans, while one isolate was identified as C. parapsilosis. These identities were confirmed at the ITS level. Yeast isolates that could not be identified phenotypically were identified as C. albicans following genotypic analysis. Genotypic identification is the gold standard for identification of C. albicans. A polyphasic approach in fungal identification provides a plethora of phenotypic and genotypic properties, which creates robust and accurate results.
Performance Alignment Work Fagerholm

Context: Companies increasingly strive to adapt to market and ecosystem changes in real time. Gauging and understanding team performance in such changing environments present a major challenge. Objective: This paper aims to understand how software developers experience the continuous adaptation of performance in a modern, highly volatile environment using Lean and Agile software development methodology. This understanding can be used as a basis for guiding formation and maintenance of highperforming teams, to inform performance improvement initiatives, and to improve working conditions for software developers. Method: A qualitative multiple-case study using thematic interviews was conducted with 16 experienced practitioners in five organisations. Results: We generated a grounded theory, Performance Alignment Work, showing how software developers experience performance. We found 33 major categories of performance factors and relationships between the factors. A cross-case comparison revealed similarities and differences between different kinds and different sizes of organisations. Conclusions: Based on our study, software teams are engaged in a constant cycle of interpreting their own performance and negotiating its alignment with ∗Corresponding author Email addresses: fabian.fagerholm@helsinki.fi (Fabian Fagerholm), marko.ikonen@alumni.helsinki.fi (Marko Ikonen), petri.kettunen@cs.helsinki.fi (Petri Kettunen), juergen.muench@cs.helsinki.fi (Jürgen Münch), virpi.roto@aalto.fi (Virpi Roto), pekka.abrahamsson@unibz.it (Pekka Abrahamsson) Preprint submitted to Information and Software Technology January 20, 2015 other stakeholders. While differences across organisational sizes exist, a common set of performance experiences is present despite differences in context variables. Enhancing performance experiences requires integration of soft factors, such as communication, team spirit, team identity, and values, into the overall development process. Our findings suggest a view of software development and software team performance that centres around behavioural and social sciences.
An optimal establishment of an acute hyperglycemia zebrafish model

Recently, zebrafish has shown the potential to become an important in vivo model for diabetes-related research. In this study, we performed a validation study for the establishment of optimal hyperglycemia involving the following factors: alloxan concentrations of 100, 200, 300, and 400 mg/100 ml; exposure times of 30, 60, 120, and 180 min to an alloxan solution and water glucose solution; and water glucose solution concentrations of 1, 2, and 3%. The results have shown that exposure to water glucose solution following alloxan treatment might increase blood glucose level in zebrafish in a dose- and time-dependent manner. The appropriate hyperglycemia zebrafish model was induced in 300 mg/100 ml alloxan solution for 30 min, 1% water glucose solution for 30 min, and water for 1 h. We suggest that our zebrafish model could be an alternative hyperglycemia animal model in the future. Key words: Zebrafish, hyperglycemia, alloxan, blood glucose.
Understanding epistemic uncertainty in large-scale coastal flood risk assessment for present and future climates

Abstract. An upscaling of flood risk assessment frameworks beyond regional and national scales has taken place during recent years, with a number of large-scale models emerging as tools for hotspot identification, support for international policymaking, and harmonization of climate change adaptation strategies. There is, however, limited insight into the scaling effects and structural limitations of flood risk models and, therefore, the underlying uncertainty. In light of this, we examine key sources of epistemic uncertainty in the coastal flood risk (CFR) modelling chain: (i) the inclusion and interaction of different hydraulic components leading to extreme sea level (ESL), (ii) the underlying uncertainty in the digital elevation model (DEM), (iii) flood defence information, (iv) the assumptions behind the use of depth–damage functions that express vulnerability, and (v) different climate change projections. The impact of these uncertainties on estimated expected annual damage (EAD) for present and future climates is evaluated in a dual case study in Faro, Portugal, and on the Iberian Peninsula. The ranking of the uncertainty factors varies among the different case studies, baseline CFR estimates, and their absolute and relative changes. We find that uncertainty from ESL contributions, and in particular the way waves are treated, can be higher than the uncertainty of the two greenhouse gas emission projections and six climate models that are used. Of comparable importance is the quality of information on coastal protection levels and DEM information. In the absence of large datasets with sufficient resolution and accuracy, the latter two factors are the main bottlenecks in terms of large-scale CFR assessment quality.
Storing the Subdivision o f a Polyhedral Surface

A common structure arising in computational geometry is the subdivision of a plane defined by the faces of a straight-line planar graph. We consider a natural generalization of this structure on a polyhedral surface. The regions of the subdivision are bounded by geodesics on the surface of the polyhedron. A method is given for representing such a subdivision that is efficient both with respect to space and the time required to answer a number of different queries involving the subdivision. For example, given a point x on the surface of the polyhedron, the region of the subdivision containing x can be determined in logarithmic time. If n denotes the number of edges in the polyhedron, m denotes the number of geodesics in the subdivision, and K denotes the number of intersections between edges and geodesics, then the space required by the data structure is O((n+m)log(n+m)), and the structure can be built in O(K + (n + m)log(n + m)) time. Combined with existing algorithms for computing Voronoi diagrams on the surface of polyhedra, this structure provides an efficient solution to the nearest-neighbor query problem on polyhedral surfaces.
Predicting job performance of nurses based on emotional regulation and mental health practices

The aim of predicting job performance of nurses was based on emotional regulation (reappraisal and suppression) and mental health practices. The research method was descriptive and correlational. The population consisted of all nurses in Rouzbeh hospital in years 2014 and 2015. 200 nurses were selected by convenience sampling method and responded to Goldberg general health questionnaire, Gross and John emotional regulation practices and Paterson's job performance. Hierarchical regression was used to analyze the data. The results showed that job performance of nurses be predicted by re-evaluation emotional regulation practice (β = 0.255, p<0.01) positively and by suppressed excitement practice (β = 0.377, p<0.01) negatively at significance level of 0.01. In addition, job performance of nurses be predicted by aspects of anxiety and insomnia (β = 0.247, p<0.01) and depression (β = 0.259, P<0.01) negatively at significance level of 0.01.
Anti-collagenase, anti-elastase and antioxidant activities of Pueraria candollei var. mirifica root extract and Coccinia grandis fruit juice extract: An In vitro study

Aims: To determine the in vitro anti-elastase, anti-collagenase and antioxidant properties of two Asian herbs: Pueraria candollei Graham ex Benth. var. mirifica and Coccinia grandis (L.) Voigt that were selected for their anti-aging properties according to their ethnobotanical and chemotaxonomic information. Place and Duration of Study: School of Agriculture, Food and Rural Development, Newcastle University, United Kingdom, between June and August 2014. Methodology: The methanolic extract of the roots of P. candolleivar. mirifica (PMM) and the fruit juice extract of C. grandis (CGJ) were investigated by in vitro enzymatic assays to mimic the breakdown of elastin and collagen fibres. Total phenolic content was determined using the FolinOriginal Research Article Chattuwatthana and Okello; EJMP, 5(4): 318-327, 2015; Article no.EJMP. 2015.031 319 Ciocalteu method (gallic acid equivalent, GAE), while antioxidant capacity was determined as Trolox equivalents (TE) by the 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azino-bis(3ethylbenzothiazoline-6-sulphonic acid) (ABTS) radical scavenging assays. Results: PMM significantly inhibited elastase activity with IC50 of 143.0±4.78 μg/mL, and its anticollagenase activity was comparable with that of the positive control, epigallocatechin gallate (EGCG). Based on the same concentration, the elastase inhibitory activity of PMM was significantly higher compared with that of CGJ (P< .001), while the collagenase inhibitory activities of both extracts were comparable. Total phenolic content, DPPH and ABTS radical scavenging activities of 1.0 g equivalent of the dried roots of PMM were 0.6±0.04 mg of GAE, 16.4±6.20 and 9.3±1.38 μmole TE respectively. The antioxidant values of PMM were significantly higher compared with those of 1000 μg/mL of CGJ (GAE, P< .0001; DPPH radical scavenging activity, P< .05; ABTS radical scavenging activity, P< .001). The free radical scavenging activities of both plant extracts were positively correlated with their total GAE (P < .0001). Conclusion: PMM may play a role in decelerating the skin ageing process and could be formulated for anti-wrinkle skincare products. Further research is required to examine anti-elastase, anti-collagenase and antioxidant activities of individual compounds contained in the roots of PMM and expand the investigation into such anti-ageing effects of the whole fruits of C. grandis, which might contain higher amounts of phytochemicals than the fruit juice.
Internal Curing: Discussion of the Role of Pore Solution on Relative Humidity Measurements and Desorption of Lightweight Aggregate (LWA)

Synopsis: Internal curing can be used to counteract the effects of self-desiccation in low watercement ratio mixtures. Internal curing uses prewetted lightweight aggregate (LWA) as a reservoir that can release water as it is needed to keep the hydrating cement paste structure saturated. While many developments have been made in advancing the field of internal curing, this work examines the composition of the early-age pore solution. The effect of the pore solution composition on the relative humidity is also discussed. The paper performs desorption measurements of the lightweight aggregate to better understand how fluid is released from the lightweight aggregate. An approach is suggested to use solutions rather than pure distilled water to improve the relevance of the measurement of desorption at high relative humidities.
Residential Noise Control Requirements for Powerline Communications Channel

Power line communications –PLC– is a technology that uses the electric grid for data transmission. Although the electrical channels were not designed to carry data, the implementation of PLC allows the using of a single channel for both electric and information transmission. Even tough the PLC technology initially aimed at transferring low rate control data between electrical stations, the communications over electric channels have been widely implemented not only for control data transmission but also for establishing high rate data, voice and video communications. Communications by power lines, begun as a slow analog communications technology, and recently and recently has become in a wide band technology that has been compared with wireless LAN solutions [1]. High-speed home network solutions have been developed to provide connectivity by wireless or wired mediums including 802.11 –WLAN–, 802.15 –WPAN– and high speed 1394. One of PLC's greatest advantages is the use of low power residential lines with non impact over the electrical circuits, sharing the medium for both power and communications solutions. Electric companies invest on wired Internet access to achieve low cost solution for fixed Internet access as last mile solution and they can use the system to gain control over energy meters and it can be used for demotic applications using electrical appliances networks. The initial PLC standard for PLC home networking is HomePlug 1.0 [2] for LAN connectivity at every power outlet, and it has been implemented in a wide variety of commercial equipments such as routers, bridges, wireless access points, audio end points, speakers, VoIP phones and security cameras. HomePlug AV, supports entertainment applications such as HDTV and home theater throughout the home without new wires and provides this capabilities at competitive costs [3]. Recently, Telecommunications Industry Association –TIA– has adopted HomePlug 1.0 to be published in its standard TIA 1113, as the first multi-megabit power line communications standard approved by American National Standards Institute [4]. The first an only –ANSI– PLC standard defines operations, functions and interface characteristics of a system for medium speed networking using the medium of power line wiring based on Orthogonal Frequency-Division Multiplexing –OFDM–. 18
The Iron Fist versus The Invisible Hand: Interventionism and Libertarianism in Environmental Economic Discourses

Drawing from a broad range of sources, we define and discuss the two primary ways of contemplating issues related to environmental economics, namely, interventionism and libertarianism. We then interpret a cellular automaton as a model that allows for either approach, as well as anarchy, and show that interventionism exponentially reduces the number of possibilities while libertarianism, even when only probabilistically applied, tends to retain rather than destroy the underlying economic complexity. Thus, the libertarian, ex-post, remuneration approach may deserve more than the scant consideration it typically receives in such discourse, while the interventionist, ex-ante, regulation approach may have hidden long-term dangers not previously recognised. More generally, the approach outlined here may prove useful as a mechanism by which various regulatory proposals may be tested and compared.
Influence of wind on the movement of the load

This paper presents theoretical considerations and numerical calculations concerning wind influence on the movement of the load during working cycle. During the test, the load is treated as a rigid body. The first part of this work includes the analysis of the aluminium cubical model of the load, which could move only in one plane, striving to increase the stability of motion and prevent vibrations. Numerical analysis was performed in Matlab/Simulink program and compared with experimental results, which were carried out in a low speed wind tunnel equipped with PIV system. The study was carried out for two cases: with and without seeding. The second part of this work includes the application of this research method for analysing the laboratory mobile crane’s duty cycle. Numerical simulations were carried out on a modified simulation model. The sample numerical results present the trajectory and positions of the load carried on the non-deformable rope taking into account the wind influence.