Miracle-dz/UniFAR-FTUs huggingface dataset:
RANSE Code Application for Ducted and Endplate Propellers in Open Water

This paper reflects the application of the commercial RANSE code ANSYS-CFX® and its mesh generator ICEM® to two types of propulsors in a range of open water non-cavitating conditions. The mesh dependence and convergence of the results are presented. The validation is carried out using open water model experimental data. The numerical prediction for both propulsors is able to reproduce the experiment very well in a practical range of advances. For propeller in duct 37, a comparison is also done with pressure measurements on the inner side of the nozzle. Propeller in nozzle 19A was also calculated in full scale. It was confirmed that the resulting total thrust is practically not affected by the scale, while the forces on the duct and the propeller are. For the endplate CLT propeller the influence of the turbulence model (SST and k-ε) has been also evaluated. The combined effect of Reynolds number and loading on the thrust and torque has been obtained by comparing model and full scale calculations in turbulent flow, confirming the peculiarities of the ducted propellers and the substantial gain of efficiency for the CLT propeller. Comparing with the extrapolation method currently applied, it is concluded that further use of RANSE code may permit to improve it.
Choosing Spatial Units for Landscape-Based Management of the Fisheries Protection Program

IV RÉSUMÉ . V BACKGROUND LITERATURE REVIEW . 1 STATEMENT OF PURPOSE . 1 SETTING ECOLOGICALLY BASED MANAGEMENT AREAS (EBMA) . 2 AQUATIC CLASSIFICATIONS SCHEMES . 9 USE OF TERRESTRIAL CLASSIFICATIONS IN EXPLAINING AQUATIC ECOLOGICAL INDICATORS . 10 EFFECT OF SCALE ON ECOLOGICAL DRIVERS OF PRODUCTION . 11 ECOLOGICAL DRIVERS OF PRODUCTIVITY FROM SOLICITED CONTRIBUTIONS . 15 NUTRIENT DRIVERS OF LAKE PRIMARY PRODUCTIVITY AND FISH BIOMASS.16 INFLUENCE OF LATITUDE AND ELEVATION ON LAKE FISH PRODUCTIVITY . 19 USING THE METABOLIC THEORY OF ECOLOGY TO DEFINE SPATIAL UNITS . 22 HIERARCHICAL SCALES OF REPORTING CATCH-PER-UNIT-EFFORT . 27 A BOTTOM-UP APPROACH TO SETTING MANAGEMENT AREAS . 30 CONCLUSION AND SYNTHESIS . 31 ACKNOWLEDGEMENTS . 34 REFERENCES CITED . 34
An Efficient Channel-Aware Aloha-Like OFDMA-Based Wireless Communication Protocol for IoT Communications in Wireless Sensor Networks

Wireless sensor networks consisting of several sensors deployed in a given area, under an internet of things (IoT) paradigm, are considered. Sensor nodes may or may not be close enough to communicate with each other in order to perform collaborative transmissions. A communication protocol is proposed in order to allow the sensors to operate autonomously by transmitting their measured data to a central processing system, where it is processed and analyzed. The presented communication protocol is based on random access. It allows each sensor to independently access the channel whenever it has data to transmit. It is based on orthogonal frequency division multiple access (OFDMA), where each sensor accesses a timefrequency slot in a probabilistic manner to avoid collisions. A controlling entity, e.g., a central base station (BS) covering a certain sensor deployment area receives the sensor transmissions. The BS provides synchronization information to the sensors by periodically transmitting a pilot signal over the available OFDMA subcarriers. Sensors use this signal for channel quality estimation, which can guide them in their transmission slot selection. This approach is simple, flexible, and efficient in terms of energy consumption, transmission data rates, and collision probability. A typical application example consists of an autonomous sensor network deployed for monitoring air quality and environmental pollution.
THE EFFECT OF PERCEPTIONS LEARNING OF THE ENTREPRENEURSHIP PRACTICUM COURSE AND THE PEER ENVIRONMENTS ON THE ENTREPRENEURIAL DECISIONS AMONG STUDENTS OF ECONOMICS EDUCATION, UNY

This study aims to investigate: (1) the effect ofperceptions learning of the entrepreneurship practicum course on the entrepreneurial decisions among students of Economics Education, Faculty of Economics (FE), Yogyakarta State University (YSU); (2) the effect of the peer environments on their entrepreneurial decision; and (3) the effect of perceptions learning of the entrepreneurship practicum course and the peers environment on their entrepreneurial decisions. This was an ex post facto study. The research variables were the perceptions of the learning of the entrepreneurship practicum course, the peer environments, and the entrepreneurial decisions. The research population comprised students of Economics Education, FE, YSU, of the 2011 admission year with a total of 56 students. The data were collected by a questionnaire and documentation. The data analysis method was multiple regression analysis. Based on the results of the study, the conclusions are as follows. (1) The perceptions of the learning of the entrepreneurship practicum course have a positive effect on the entrepreneurial decisions, indicated by a significance value of 0.012, less than 0.05. (2) The peer environments have a positive effect on the 177 Jurnal Pendidikan dan Ekonomi, Volume 5, Nomor 3, Tahun 2016 entrepreneurial decisions, indicated by a significance value of 0.007, less than 0.05. (3) The perceptions of the learning of the entrepreneurship practicum course and the peer environments have a positive effect on the entrepreneurial decisions, indicated by a significance value of 0.000, less than 0.05. The value of R 2 is 0.508, showing that 50.8% of the entrepreneurial decisions are accounted for by the perceptions of the learning of the entrepreneurship practicum course and the peer environments. Meanwhile, 49.2% are accounted for by other factors not under study.
DETERMINANTS OF INSURANCE COMPANIES PROFITABILITY: AN ANALYSIS OF INSURANCE SECTOR OF PAKISTAN

Insurance services are now being integrated into wider financial industry and the insurance sector plays an important role in service based economy of Pakistan. Profitability is one of the most important objectives of financial management because one goal of financial management is to maximize the owner` s wealth and profitability is very important determinants of performance. This paper investigated the determinants of profitability in insurance companies of Pakistan. Specifically this examine the effects of firm specific factors (age of company, size of company, volume of capital, leverage ratio and loss ratio) on profitability proxied by ROA. A key indicator of insurance companies profitability is return on assets (ROA), defined as the before tax profit divide by total assets (TA). Profitability is dependant variable while age of company, size of company, volume of capital, leverage and loss ratio) are independent variables. The sample in this study includes 35 listed life and non-life insurance companies which cover the period of 20052009. Secondary data obtained from the financial statements (Balance sheet and Profit/Loss account) of insurance companies, financial publications of State Bank of Pakistan and Insurance Year Book that is published by Insurance association of Pakistan (IAP). The findings show that there is no relationship between profitability and age of the company and there is significantly positive association between size of the company and profitability. The result also shows that the volume of capital is significantly and positively related to profitability. Loss ratio and leverage ratio showed negative but significant relationship with profitability.
Required Practices for Successful Tax Amnesty : Kosovo Case

The tax amnesties have been used as economic performance tool to promote economic development, collection of public revenues in the short run and improvement of tax compliance in the country. The Republic of Kosovo has practiced their application twice during the past 10 years. The main purpose of this study is to provide practical guidance on the required actions for a successful tax amnesty. The survey method is used for data collection. Data processing is done through SPSS and statistical techniques. The major findings revealed key practices for a successful tax amnesty. Evidence has shown that most businesses which had previously evaded taxes are now regular taxpayers after the tax amnesty. Therefore, according to the results it is concluded that the success of tax amnesty depends on the fulfillment of certain conditions such as; the confidentiality of the tax amnesty beneficiaries, the time to take advantage from tax amnesty should be sufficient, facilitating tax amnesty procedures should encourage participation in the amnesty, it should be clear that no other tax amnesties will be repeated in the future, tax offices must be equipped with advanced technology and serious and strict sanctions must be applied after the tax amnesty.
Effect of Pinching and Paclobutrazol on Growth and Flowering of Garland Chrysanthemum ( Chrysanthemum coronarium L . )

This experiment was conducted in the Department of Horticulture and Landscape design, College of Agriculture and Forestry, University of Mosul, during the period from October 2017 to May 2018, on the garland chrysanthemum plants Chrysanthemum coronarium L. , to produce as flowering pot plants, by studying effect of two factors, first: pinching once or twice as well as non-pinching, and the second: paclobutrazol at concentrations: 0, 10 and 20 mg.l sprayed twice until wet. Factorial experiment in Randomized Complete Block Design was used in this study, with three replicate and 12 plants for treatment. The results indicated that twice pinching gave a significant reduction in the plant height, the inflorescence diameter, the plant dry weight and the seeds weight (100 seeds). But increased the branches number, chlorophyll intensity in the leaf, the period from planting to inflorescence bud formation, the period to opening 50% of inflorescences, and the total number of inflorescences, the plant aesthetic value (degree) and the plant aesthetic period. On other hand, spraying plants with paclobutrazol at 20 mg l caused a significant decreased in plant height and the plant dry weight, but increased chlorophyll intensity in the leaf, the plant aesthetic value, and the plant aesthetic period. In general, plants which twice pinching and sprayed with paclobutrazol at a concentration 20 mg.l significantly reduced the plant height 21.76 cm, the inflorescence diameter 42.03 mm, the plant dry weight 48.73 gm and the seeds weight, but increased the branches number 30.77 branches.plant chlorophyll intensity in the leaf 30.96 SPAD, the period from planting to inflorescence bud formation 111.00 day, the period to opening 50% of inflorescences 27 march, the total number of inflorescences 85.16 inflo.plant, the plant aesthetic value 8.66 degree, and the plant aesthetic period.
2 ON THE INFLUENCE OF FILM-FORMING COMPOUNDS ON DROPLET GROWTH

For more than 50 years a common theme in many warm rain cloud microphysical studies has been the inability of cloud models to explain the breadth of droplet spectra observed in natural clouds. The comparison between observations and models is difficult because droplet spectrometers are not free of error and also because of artifacts that are often an integral part of numerical models. Nevertheless, the plethora of studies on the subject tends suggest that the disparity in spectral breadths is likely a real one (Hudson and Yum 1997). A variety of mechanisms might account for this disparity including entrainment mixing (Baker et al., 1980), vortex structures that create inhomogeneous spatial distributions of droplets (Shaw et al., 1998), longwave cooling (Roach, 1976), aqueous chemistry (Zhang et al., 1998), and giant CCN (radii > ≈ 1 μm) that broaden spectra through collision-coalescence. This paper does not dispute these works, nor does it attempt to ascertain their relative importance. Instead it focuses on an alternative mechanism which has not been widely considered. The main idea is that some amphiphilic organic compounds (that we will term filmforming compounds, or FFCs) can form compressed films on the surface of droplets, and that this coating may inhibit droplet growth for long enough that some fraction of droplets grows in conditions of relatively high supersaturation and they achieve larger sizes than they would have, had the entire population of drops been growing simultaneously. By the time the film on the haze droplets is reduced to less than a complete monolayer, and these drops can grow freely, the size spectrum is significantly broader than that achieved in FFC-free conditions. A few, limited studies have examined the potential effects of surface films on cloud formation (Podzimek and Saad, 1975; Derjaguin et al., 1985). They suggest that a more rigorous exploration of the conditions under which FFCs might have an effect on drop spectral evolution is in order. The current study includes a detailed analysis of model results, and attempts to understand the implications for drop spectral broadening and climate. Furher details can be found in Feingold and Chuang (2002).
Opportunity and Inequality Across Generations

We analyze inequality and mobility across generations in a dynastic economy. Nurture, in terms of bequests and the schooling investment into the next generation, is observable but the draw of nature in terms of ability is hidden, stochastic and persistent across generations. We calibrate the model to U.S. data to illustrate mechanisms through which nurture and nature affect mobility and the transmission of income inequality across generations, thus complementing the vast empirical literature. To provide a benchmark for the observed status quo, we solve for the social optimum in which the planner weighs dynasties equally and chooses optimal tax schedules subject to incentive compatibility. Analyzing the transition from the calibrated steady state to this social optimum, we find that insurance against intergenerational ability risk increases on the transition path by making welfare of family dynasties more dependent on nurture relative to nature. The insurance comes at the cost of less social mobility. We compare welfare in the social optimum and economies with a simple history-independent tax and subsidy system.
The Influence of the Social Media Recommendation System Against Polarization in the Views of User Politics: Experiments on Social Media Newsfeed on Social Media Users

The background of this research is based on 2019 election issues that spread massively in social media. From these issues comes the polarization and divides into two opposing sides. However, users are basically not presented with balanced information as a result of the recommendation system on social media. This research is expected to enrich the study of social media impact, especially on study of recommendation system with context in Indonesia. This thesis examines the recommendation system designed by social media operators tends to be uniform or aligned with the user's political views only. The phenomenon is The Filter Bubbles where the information circulating on our social media is filtered only in accordance with the user's own views. Polarization becomes an effect that can be influenced by the recommendation system because the acceptance of information from the user after going through a personalized curation system raises uniform news. This research uses quantitative approach with experiment method. The results of this study indicate that the recommendation system makes the polarization position of users more extreme. This is marked by increasingly persistent opinions and political views held by previous users.
CHOW RINGS OF ABELIAN AND HYPERKÄHLER VARIETIES

The Chow ring of abelian varieties has some special properties, they were discovered by Bloch [7] and Beauville [2, 3]. Beauville and Voisin [6] proved a result for (projective) complex K3 surfaces that is reminiscent of Beauville’se results for abelian varieties. In [4, 29] the same authors conjectured that analogous results hold for hyperkähler varieties and verified their conjectures in some cases; evidence in favour of these conjectures has been provided by Fu [12] and Shen Vial [27]. Similar results have also been proved for certain Calabi-Yau varieties by Voisin [30] and Lie Fu [11]. The moral is that Chow rings of smooth projective varieties with trivial canonical bundle appear to enjoy special properties. We will review Beauville’s decomposition of the Chow ring of an abelian variety and then we will discuss the case of hyperkähler varieties. All varieties will be defined over C.
Levels and trends of poly-and per fl uoroalkyl substances in the Arctic environment e An update

Polyand perfluoroalkyl substances (PFASs) are important environmental contaminants globally and in the early 2000s they were shown to be ubiquitous contaminants in Arctic wildlife. Previous reviews by Butt et al. and Letcher et al. have covered studies on levels and trends of PFASs in the Arctic that were available to 2009. The purpose of this review is to focus on more recent work, generally published between 2009 and 2018, with emphasis on PFASs of emerging concern such as perfluoroalkyl carboxylates (PFCAs) and short-chain perfluoroalkyl sulfonates (PFSAs) and their precursors. Atmospheric measurements over the period 2006e2014 have shown that fluorotelomer alcohols (FTOHs) as well as perfluorobutanoic acid (PFBA) and perfluoroctanoic acid (PFOA) are the most prominent PFASs in the arctic atmosphere, all with increasing concentrations at Alert although PFOA concentrations declined at the Zeppelin Station (Svalbard). Results from ice cores show generally increasing deposition of PFCAs on the Devon Ice cap in the Canadian arctic while declining fluxes were found in a glacier on Svalbard. An extensive dataset exists for long-term trends of long-chain PFCAs that have been reported in Arctic biota with some datasets including archived samples from the 1970s and 1980s. Trends in PFCAs over time vary among the same species across the North American Arctic, East and West Greenland, and Svalbard. Most long term time series show a decline from higher concentrations in the early 2000s. However there have been recent (post 2010) increasing trends of PFCAs in ringed seals in the Canadian Arctic, East Greenland polar bears and in arctic foxes in Svalbard. Annual biological sampling is helping to determine these relatively short term changes. Rising levels of some PFCAs have been explained by continued emissions of long-chain PFCAs and/or their precursors and inflows to the Arctic Ocean, especially from the North Atlantic. While the effectiveness of biological sampling for temporal trends in long-chain PFCAs and PFSAs has been demonstrated, this does not apply to the C4eC8ePFCAs, perfluorobutane sulfonamide (FBSA), or perfluorobutane sulfonate (PFBS) which are generally present at low concentrations in biota. In addition to air sampling, sampling abiotic media such as glacial cores, and annual Change Canada, Burlington,
Estimation of particle sample bias in shear layers using velocity-data rate correlation coefficient

Particle sampling bias in laser velocimetry measurements occurs in shear and mixing layers where the spread of the particle-laden flow is not only dependent on the mixing of the flows, but also on the spatial distribution of particles within the original flow. This study presented in this paper discusses the application of a velocity-data rate correlation coefficient as a measure of statistical dependence and thus the degree of velocity bias.
A contrastive analysis of Filipino and American newspaper editorial headlines

Newspaper editorials comprise a portion of media discourse deemed to be important in the field of research in both intercultural rhetoric analysis and English as a Second Language or Foreign Language studies. Thus, this study aims to explore the different kinds of textual features and rhetorical strategies employed in the editorial headlines of the American newspaper, The New York Times (NYT), and the Philippine newspaper, Philippine Daily Inquirer (PDI). The study analyzed 50 headlines culled from the electronic versions of both the NYT and the PDI. Based on Alireza and Samuel’s (2012) framework, the study applied a systematic contrastive textual analysis in investigating the said headlines. The results point to the fact that differences between the two sets of headlines exist, specifically in terms of the use of presuppositions and rhetorical devices.
Association Between Maternal Health Literacy Level and Prenatal Care in Iran

Background and Objective: Maternal health literacy includes cognitive and social skills, providing the motivation and ability for pregnant women to access, understand, and use the health information. Given the effect of maternal health literacy on health of mothers and their children, recognizing the maternal health literacy level in pregnant women is essential. Thus, the present study was conducted to evaluate the relationship between maternal health literacy and prenatal care and its outcomes among the women who have recently given birth and admitted to Yazd health centers in 2017. Method: This descriptive-analytical study was conducted on 390 women. They were selected using multistage cluster sampling method. The data collection tools were maternal health literacy level and pregnancy outcome questionnaires. Data were analyzed using SPSS (version 21). The significant level was considered 0.05. Results: The mean score of health literacy score was 54.67 ± 9.85 and the mean score of pregnancy outcomes was 47.41 ± 6.2 and Pearson correlation test showed a significant correlation between health literacy and pregnancy outcomes (R=0.633, p<0.0001). Maternal health literacy was also associated with cares such as proper weight gain during pregnancy and the use of some supplements (folic acid and multivitamin), but it did not show any significant association with the nutritional status of the neonate and birth weight. Conclusion: As a significant relationship was found between maternal health literacy and pregnancy outcome, the mothers should be encouraged for pregnancy cares by providing proper health and up-to-date information and materials required by pregnant mothers in healthcare centers. Paper Type: Research Article
In fl uence of texture and grain re fi nement on the mechanical behavior of AA 2219 fabricated by high shear solid state material deposition

Issues with rapid grain growth, hot cracking and poor ductility have hindered the additive manufacturing and repair of aluminum alloys. Therefore, this is the first investigation to spatially correlate the processing-structureproperty relations of a precipitation hardened aluminum alloy 2219 (AA2219) material with respect to deposition orientations and build layers. The AA2219 material was processed by a high deposition rate (1000 cm/ h) solid-state additive deposition process known as Additive Friction Stir Deposition or MELD. An equiaxed grain morphology was observed in the three orientations, where Electron Backscatter Diffraction (EBSD) identified a layer-dependent texture with a strong torsional fiber A texture in the top of the build transitioning to weaker textures in the middle and bottom layers. Interestingly, the tensile behavior reflected the texture layer-dependence with tensile strength increasing from the bottom to the top of the deposition. However, there were no statistically significant differences in hardness measured from the top to the bottom of the deposition. Furthermore, no orientation dependence on mechanical properties was observed for compression and tension specimens tested at quasi-static (0.001/s) and high (1500/s) strain rate. Transmission Electron Microscopy (TEM) determined a lack of θ′ precipitates in the as-deposited cross-section, therefore resulting in no precipitation strengthening.