Miracle-dz/UniFAR-FTUs huggingface dataset:
In-plane Thermal Conductivity Measurement with Nanosecond Grating Imaging Technique

ABSTRACT We develop a nanosecond grating imaging (NGI) technique to measure in-plane thermal transport properties in bulk and thin-film samples. Based on nanosecond time-domain thermoreflectance (ns-TDTR), NGI incorporates a photomask with periodic metal strips patterned on a transparent dielectric substrate to generate grating images of pump and probe lasers on the sample surface, which induces heat conduction along both cross- and in-plane directions. Analytical and numerical models have been developed to extract thermal conductivities in both bulk and thin-film samples from NGI measurements. This newly developed technique is used to determine thickness-dependent in-plane thermal conductivities (κx) in Cu nano-films, which agree well with the electron thermal conductivity values converted from four-point electrical conductivity measurements using the Wiedemamn–Franz law, as well as previously reported experimental values. The κx measured with NGI in an 8 nm x 8 nm GaAs/AlAs superlattice (SL) is about 10.2 W/m⋅K, larger than the cross-plane thermal conductivity (8.8 W/m⋅K), indicating the anisotropic thermal transport in the SL structure. The uncertainty of the measured κx is about 25% in the Cu film and less than 5% in SL. Sensitivity analysis suggests that, with the careful selection of proper substrate and interface resistance, the uncertainty of κx in Cu nano-films can be as low as 5%, showing the potential of the NGI technique to determine κx in thin films with improved accuracy. By simply installing a photomask into ns-TDTR, NGI provides a convenient, fast, and cost-effective method to measure the in-plane thermal conductivities in a wide range of structures and materials.
Something interacting and solvable in 1D

We present a two-parameter family of exactly solvable quantum many-body systems in one spatial dimension containing the Lieb–Liniger model of interacting bosons as a particular case. The principal building block of this construction is the previously-introduced (Stouten et al 2018 arXiv:1712.09375) family of two-particle scattering matrices. We discuss an transformation connecting the models within this family and make a correspondence with generalized point interactions. The Bethe equations for the ground state are discussed with a special emphasis on ‘non-interacting modes’ connected by the modular subgroup of . The bound state solutions are discussed and are conjectured to follow some correlated version of the string hypothesis. The excitation spectrum of the new models in this family is derived in analogy to the Lieb–Liniger model and we show that for certain choices of parameters a spectrum inversion occurs such that the Umklapp solutions become the new ground state.
Characterizing circumgalactic gas around massive ellipticals at z ∼ 0.4 – I. Initial results★

NASA/ESA Hubble Space Telescope [HST-GO-14145.01A]; NASA [NAS 5-26555]; NSF [AST-1715692]; Brinson Foundation; Observatories of Carnegie Institution for Science; NASA Hubble Fellowship [HST-HF2-51375.001-A]
Evaluation of Earning Performance of Female Owned Leather-Based Enterprises in Aba Metropolis, Abia State, Nigeria

This study examined evaluation of earning performance of female owned leather-based enterprises in Aba Metroplis of Abia State. The study has become relevant considering the performance of women in the other fields of life endeavors. Firstly, through a purposive selection sampling method female owners of leather based enterprises were selected against the males. A random selection of sixty (60) female entrepreneurs involved in leather products preproduction activities such as sales of accessories for shoes, bags and belts, leather cleaning and drying activities, leather spraying and such like activities. Thirty female entrepreneurs were selected from Ariaria and Ahia markets respectively. Questionnaire and oral interview were the instruments for data collection. The tools for data analyses were descriptive statistics, income statement and an econometric model involving Ordinary Least Square regression analyses. The earning performance evaluation indicated that the enterprises have performed creditably considering the value of the gross margin analysis which is high and gross return per each capital invested which is also positively significant. The analyses of determinants of earning performance indicated the significant variables as interest rate on credit, distance to the nearest market, amount of credit available for investment and rent. It is recommended that female entrepreneurs owning leather enterprises should be empowered financially and that at a reduced rate of interest to enhance the enterprise performances.
Pulse Wave Propagation in Large Blood Vessels Based on Fluid- Solid Interactions Methods

Pulse Wave Velocity (PWV) is recognized by clinicians as an index of mechanical properties of human blood vessels. This concept is based on the Moens-Korteweg equation, which describes the PWV in ideal elastic tubes. However, measured PWV of real human blood vessels cannot be always interpreted by the Moens-Korteweg equation because this formula is not precisely applicable to living blood vessels. It is important to understand the wave propagation in blood vessels for a more reliable diagnosis of vascular disease. In this study, we modeled uniform arteries in a three-dimensional coupled fluid-solid interaction computational scheme, and analyzed the pulse wave propagation. A commercial code (Radioss, Altair Engineering) was used to solve the fluid-solid interactions. The governing equations were the compressive Navier-Stokes equations and the equation of continuity for the fluid region, and the equation of equilibrium for the solid region. At the inlet, a steady flow with Reynolds number 1000 was imposed as the basic flow, then a single rectangular pulse with Reynolds number 4000 was imposed upon the basic flow to produce a propagating wave. We compared the PWV values obtained from the computation with those from the Moens-Korteweg equation, and showed the possibility of applying the computational technique to wave propagation analysis in human large arteries.
Regeneration development under shelterwoods in a lowland red spruce – balsam fir stand

The shelterwood system can be used to establish regeneration and to improve the growing conditions of seedlings and, thereby, increase their probability of survival after final harvest. To determine the cutting intensity that best promotes the development of red spruce (Picea rubens Sarg.) regeneration, an experiment, including four repetitions of five treatments (control; low, moderate, and heavy partial cuttings; and clear-cutting), was established in a lowland stand in Quebec, Canada, dominated by red spruce and balsam fir (Abies balsamea (L.) Mill. ). Regeneration development responses to treatments varied according to cutting intensity, species, and position relative to the skidding trails in the residual stands. Ten years after treatment, red spruce seedlings were well established but were smaller than those of balsam fir and deciduous species. Red spruce seedling height was generally greater in partial-cut skidding trails, as was light availability. However, in clearcuts, the size of red spruce seed.
Multi-agent Negotiation Computation in Agile Supply Chain

This paper proposes a new approach for tackling the agile supply chain of identifying suitable supplier offers; evaluating the offers and choosing the best outsource fashion apparels in multi-agent negotiation. An integrated analytic hierarchy process (AHP) with multi-agent technique based multi-criteria decision-making methodology is then developed to consider both qualitative and quantitative factors in supplier selection. We focused on multi-agent negotiation mechanism including qualitative conditions which could enables automated negotiation on multiple attributes. Then, fuzzy membership function represented the buyer/seller's cognition for each condition such as quantity, cost, quality, and delivery for the outsourced fashion apparels. Finally, a case study in a fashion manufacturing company is given to demonstrate the potential of the methodology.
Occupational Health Hazards Prevailing among Healthcare Workers in Developing Countries

Introduction: Occupational health is a neglected public health issue among healthcare workers in developing countries. This has exposed healthcare workers in developing countries to various forms of hazards which have had negative consequences on their wellbeing and performance at work. The aim of this research was to explore the forms of occupational hazards prevalent with their associated risk factors in developing countries and to recommend measures that can be put in place to remedy the situation. Methods: Relevant literature were selected from search results from databases such as Medline, CINAHL, EMBASE, PsycINFO and Google search engine were included in the review. Results: The review revealed that blood borne diseases, musculoskeletal problems, latex allergy, tuberculosis, violence and work-related stress were the common occupational hazards among healthcare workers and this was largely blamed on several healthcare system issues. Conclusion: Developing countries should prioritize occupational health and safety issues by investing heavily into standard infection control measures and training of healthcare workers on work safety. Mounting surveillance on occupational hazards and implementing policies that will protect the safety of healthcare workers is also key.
Ever Since Owen: Changing Perspectives on the Early Evolution of Tetrapods

The traditional notion of a gap between fishes and amphibians has been closed by a wealth of fish-like fossil tetrapods, many discovered since the mid 1980s. This review summarizes these discoveries and explores their significance relative to changing ideas about early tetrapod phylogeny, biogeography, and ecology. Research emphasis can now shift to broader-based questions, including the whole of the early tetrapod radiation, from the divergence from other lobed-finned fishes to the origins of modern amphibians and amniotes. The fish-to-tetrapod morphological transition occurred within the Upper Devonian; the divergence of modern tetrapod groups is an Early Carboniferous event. Modern tetrapods emerged in the aftermath of one of the five major extinction episodes in the fossil record, but the earlier Devonian tetrapod radiation is not well understood. Tetrapod limbs, paired fins, and comparative developmental data are reviewed; again, research emphasis needs to change to explore the origins of tetrapod diversity.
Interrelationship among Job Characteristic, Knowledge Sharing, and Job Satisfaction in a Cultural Organization: A Social Network Perspective

This study aims to examine the relationships among job characteristics, knowledge sharing, and job satisfaction, leveraging a social network analysis approach. We conducted social network survey and job-related survey with 50 employees of a cultural organization in South Korea. The results of analysis found several important relationships. First, an employee’s job routineness is negatively associated with her network centrality and knowledge sharing. Second, job specificity is positively related to knowledge sharing, but not to job satisfaction. Finally, knowledge sharing is positively associated with job satisfaction while job feedback has a marginal effect on job satisfaction.
AMMONIACAL NITROGEN IN WASTEWATER : SOURCES AND EFFECT IN THE ENVIRONMENT

Ammoniacal Nitrogen is one of the wastewater contaminant which can be found in many type of wastewater. Excessive ammoniacal Nitrogen in water body can lead to eutrophications. Eutrophications induces excessive plant and algal growth and decay and caused degradation of the water quality. This algal blooms limits light penetration. Eutrophications promote anoxia in the water body which kills fish and invertebrates and also leads to unpleasant and injurious gases.
Three-Level Supply Chain Coordination under Disruptions Based on Revenue-Sharing Contract with Price Dependent Demand

Considering the market demand is stochastic and dependent on price, this paper shows that the revenue-sharing contract could coordinate a three-level supply chain consisting of one manufacturer, one distributor, and one retailer under normal environment. However, the original revenue-sharing contract cannot coordinate the supply chain under disruptions in circumstances of certain incidents leading to significant changes in market demand and causing additional deviation costs. To solve the problem, this essay introduces two improved forms of revenue-sharing contract: a mixed contract form based on a quantity discount policy and a pure form, which are characterized by antidisruption ability. The model of improved revenue-sharing contract is optimized when the market demand is in the additive form or in the multiplicative form with price dependent demand. Formulas are given to calculate the optimal contract parameters. Finally, this essay demonstrates the accuracy of the model of improved revenue-sharing contract with the help of numerical examples.
AS REPRESENTAÇÕES DO HOMEM NEGRO E SUAS CONSEQUÊNCIAS

Este texto traz importantes reflexoes sobre a representacao do homem negro na sociedade brasileira. O texto sociologiamente nos fala de um questionamento da representacao do negro, tomando como referencia as ideias de Fraz Fanon que nos ensinou que o homem negro, no imaginario ocidental,nao e um homem, antes ele e um negro e como tal nao tem sexualidade, tem sexo, um sexo que desde muito cedo foi descrito no Brasil com atributo que o emasculava ao mesmo tempo em que o assemelhava a um animal em contraste com o homem branco. Este questionamento sera feito passando pelos seguintes topicos: A desqualificacao da masculinidade negra, As preocupacoes com o homem negro no Brasil que se modernizava, a masculinidade branca como a masculinidade ideal e as representacoes da masculinidade negra como a fracassada. Essa Tematica e tabu e o povo precisa tirar o veu que encobre as relacoes raciais no Brasil, principalmente no cotidiano para romper com o discursos opressores sobre o homem negro.
Do Fans Care About Compliance to Doping Regulations in Sports? The Impact of PED Suspension in Baseball

There is little evidence in support of the main economic rationale for regulating athletic doping that doping reduces fan interest. The introduction of random testing for performance-enhancing drugs (PEDs) by Major League Baseball (MLB) offers unique data to investigate the issue. The announcement of a PED violation (a) initially reduces home-game attendance by 8%, (b) has no impact on home-game attendance after 15 days, and (c) has a small negative impact on the game attendance for other MLB teams. This is the first systematic evidence that doping decreases consumer demand for sporting events.
Bachelorarbeit Operator latency in a Complex Event Processing application

Complex Event Processing often comes with an enormous amount of event data that needs to be processed. Hence, parallelization plays a significant role in handling high workload situations. The cost of an application however is often defined by the amount of used resources, like in Cloud computing, where the pay-as-you-go model applies. Still, one wants to have a working system that can handle traffic peaks within a given latency bound, so the resources-to-latency-proportion needs to be optimized. Previous work mostly focused on studying complex operator types in specific environments. In this thesis however, we want to get a general view, how parallelization degrees and types influence our CEP system, to be able to estimate what costs could arise. Therefore, a CEP application was created that simulates different system conditions with respect to workload, operator processing time and others, in order to test and analyze the latency properties of a wait operator. This work provides an overview over latency behavior of operators in an example Complex Event Processing application, which can provide a basis for future work in creating an optimized system, that not only keeps a certain latency threshold but also minimizes the costs and resources needed to achieve this goal.
Growth and biomass development of the introduced red alga Gracilaria vermiculophylla is unaffected by nutrient limitation and grazing.

The invasive red alga Gracilaria vermiculophylla was first recorded in Denmark and Sweden in 2003 and has since been reported from several sites in Denmark, Sweden and northern Germany. The abundance of G. vermiculophylla is typically high at more eutrophic sites, whereas it remains relatively low at more oligotrophic sites. We recorded seasonal variations in growth and biomass development at 2 sites with contrasting nutrient status (eutrophic versus oligotrophic) to inves- tigate whether nutrient limitation of growth and loss of biomass due to grazing from invertebrate herbi- vores could explain observed variations in biomass. The biomass of G. vermiculophylla at the eutrophic site (Holckenhavn Fjord) was ca. 300-fold larger than at the oligotrophic site (Fyns Hoved). Growth rates ranged from almost 0 in early spring to ca. 0.08 d -1 in mid-summer and did not vary among sites. The seasonal pattern of growth was correlated to insolation and water temperature, suggesting that nutrient availability played a minor role in controlling growth. Experimental nutrient enrichment con- firmed these findings; nutrient enrichment enhanced the level of tissue nutrients, but only had a mar- ginal effect on growth. Grazing losses were insignificant throughout the entire study period in both sys- tems. Hence, site-specific variations in biomass could not be explained by differences in grazing pressure. Given the lack of support for nutrient limitation or herbivory to explain the observed varia- tions of G. vermiculophylla biomass, we suggest that physical exposure caused by wind-driven waves may be the factor that controls biomass of G. vermiculophylla in these shallow estuaries.
Is Pulse-Dye Laser Therapy an Effective Treatment for Burn Scars?

OBJECTIVE The objective of this selective EBM review is to determine whether or not pulse-dye laser therapy is an effective treatment for burn scars. STUDY DESIGN Systematic review of two randomized controlled trials and one case series study published in 1998, 2003, and 2012. DATA SOURCES Two randomized controlled trials and one case series study published after 1997 were obtained using Medline and PubMed OUTCOMES MEASURED Symptoms of pruritus, pain, and burning sensation measured for improvement by patient survey of pain scales and parent’s reports of complaints in pediatric patients with symptoms by way of pain scales and medication requests. Cosmetic appearance was measured by physician and patient evaluation, photograph of pre and post treatment burn scar evaluation by blinded non-medical evaluators, 3D topographic imaging, and the Vancouver Scar Scale. RESULTS Bailey et al. (2012) and Alster et al. (1998) demonstrated improvement in a majority of the subjects’ burn scar cosmetic characteristics, while Alster also showed significant improvement in burn scar pruritus. Allison et al. (2003) showed an improvement in pruritus symptoms but not significant in cosmetic appearance as compared to the control. CONCLUSION Evidence to support the efficacy of pulse-dye laser therapy as a treatment for the symptoms and cosmetic appearance of burn scars is inconclusive at this point in time due to the lack of a large subject population, standard of measurement, and a wide spectrum of subject age making it difficult to properly collect significant amounts of data to strongly support the efficacy of pulse-dye therapy in treating burn scars.
Ubicua and Dialecta: Two Digital Environments That Support Teaching and Educational Innovation

Digital tools for learning at the Cuajimalpa Campus of the Metropolitan Autonomous University of Mexico (UAM, for its acronym in Spanish) are described: an educational platform (Ubicua) and a learning repository (Dialecta). The experience of developing these tools and the initial results of their implementation are described. Ubicua is a learning platform developed on the basis of a recent version of Moodle, and this development was designed taking into account a conceptual structure consistent with the teaching methods of the Cuajimapa Campus of the University. Accordingly, a set of dimensions were established as the platform’s underlying structure. These dimensions were: operational simplicity, usability, cognitive load, wealth of media, interactivity and sense of presence. On the other hand, Dialecta is a web application developed at the University, which stores and makes digital material available to be used in academic processes. Among other functions, it allows users to classify work, discuss their uses, qualify them, and incorporate them into the courses created and taught through the Ubicua platform. Both tools are linked so that from the platform users can access and use any content in the Dialecta repository. The article reports both the characteristics of these tools, their conceptual and instructional support, as well as the methodology and the results of an evaluation conducted with students and professors of the campus.
Effects of utilitarian and hedonic atmospheric dimensions on consumer responses in an online shopping environment

As in physical environments, one of the most important research topics is related to the effects of the characteristics of these new interactive virtual environments on different dimensions of human behaviour. This is particularly relevant in the case of consumer shopping behaviour on the internet. In this line, research on webmosphere, and specifically, the impact of utilitarian and hedonic atmospheric dimensions on shopper responses, is an interesting topic to study the more appropriate designs of website to improve the benefits of e-tailers. According to background literature, our research is focused on a 2×2 experimental study in order to analyse the effects of two different atmospheric web conditions (navigational structure -“guided hierarchical e-pathway” vs. “free network”- and music -“non-music” vs. “music”-) on internal and behavioural consumer responses within an online shopping situation. A website and a tracking behaviour methodology for a fictitious apparel retailer have been developed. Our results show that if web marketers design stores with freedom of movement during navigation and adequate music for their customers, they could be able to generate more positive responses on econsumers (satisfaction and approach responses), and in turn, improve their online sales.
Sharp Strichartz estimates for water waves systems

Water waves are well-known to be dispersive at the linearization level. Considering the fully nonlinear systems, we prove for reasonably smooth solutions the optimal Strichartz estimates for pure gravity waves and the semi-classical Strichartz estimates for gravity-capillary waves; for both 2D and 3D waves. Here, by optimal we mean the gains of regularity (over the Sobolev embedding from Sobolev spaces to H\"older spaces) obtained for the linearized systems. Our proofs combine the paradifferential reductions of Alazard-Burq-Zuily with a dispersive estimate using a localized wave package type parametrix of Koch-Tataru.
An Improved Particle Swarm Optimization for the Automobile Spare Part Warehouse Location Problem

This paper deals with a real-life warehouse location problem, which is an automobile spare part warehouse location problem. Since the automobile spare part warehouse location problem is a very complex problem, particle swarm optimization is used and some improved strategies are proposed to improve the performance of this algorithm. At last, the computational results of the benchmark problems about warehouse location problems are used to examine the effectiveness of particle swarm optimization. Then the results of the real-life automobile spare part warehouse location problem also indicate that the improved particle swarm optimization is a feasible method to solve the warehouse location problem.