Miracle-dz/UniFAR-FTUs huggingface dataset:
of Achievements in Materials and Manufacturing Engineering Mechanical properties dependency of the pearlite content of ductile irons

Purpose: In this work, it is pretended to make a comparison of different pearlite contents in pieces with similar shape and dimensions and to analyze the variation of mechanical properties as pearlite content increases. The three pieces used had form of stair made of ductile cast iron. Design/methodology/approach: The present study was based on an adequate balance of alloying elements. None heat treatment was used to obtain different pearlite contents in the microstructures. Many specimens taken from the cast were mechanized to be polished and swabbed with nital to analyze the microstructure. To study the mechanical properties these casts present many tests were done such as Charpy impact test, done at different temperatures. Fracture toughness and tensile strength tests were done, as well. Findings: This study gave evidences that heat treatments are not necessary to obtain different pearlite content in the microstructure. Good mechanical properties are obtained by an appropriate balance of alloying elements. Research limitations/implications: They are that of natural sources. Besides, high and precision technology must be applied to get the present results better. Practical implications: Cast iron productions are focussed straight on machine building and automotive industries and constructions. The low cost production of ductile cast iron, its mechanical properties and low cost transformations are the tempting for application. Originality/value: The whole experimental work and the appropriate results obtained as consequences of the analysis carried out are novel, although applied methods are well known. Values presented in tables are given as new results of our experiments. This work is of great importance for the development of new economical methods for ductile iron production. This study is directed to researchers and metallurgy centres.
Priority queueing analysis of transaction-confirmation time for Bitcoin

In Bitcoin system, a transaction is given a priority value according to its attributes such as the remittance amount and fee, and transactions with high priorities are likely to be confirmed faster than those with low priorities. In this paper, we analyze the transaction-confirmation time for Bitcoin system. We model the transaction-confirmation process as a queueing system with batch service, M/ \begin{document}$ \mbox{G}^B $\end{document} /1. We consider the joint distribution of numbers of transactions in system and the elapsed service time, deriving the mean transaction-confirmation time. Using the result, we derive the recursive formulae of mean transaction-confirmation times of an M/ \begin{document}$ \mbox{G}^B $\end{document} /1 queue with priority service discipline. In numerical examples, we show the effect of the maximum block size on the mean transaction-confirmation time, investigating the accuracy region of our queueing model. We also discuss how the increase in micropayments, which are likely to be given low priorities, affects the transaction-confirmation time.
Exploring program sustainability: Identifying factors in two educational initiatives in Victoria

This paper examines two recent successful school-based health initiatives in Victoria, particularly in relation to factors that seem to foster program sustainability. These programs, dealing with drug education and healthy eating, are described before presenting two different methods (individual and group) used to determine elements that allow for the continuation of such projects. The findings on sustainability from each program are discussed using the broad areas of factors associated with the programs themselves; those associated with the context in which the programs were implemented; and finally, those factors external to the programs and their implementation contexts. These results indicate a strong congruence with factors identified in the literature but also highlight the influence of the use of change theory in strengthening sustainability approaches in program development as well as the need to focus on funding options in forward planning. The possible roles for evaluators in assisting program development and supporting the integration of factors supporting sustained use are also discussed.
Mining of Mineral Deposits

Purpose. Determining the possible and substantiating expedient alternate design and engineering decisions regarding the stage of spacial union of the adjacent quarries belonging to various owners by mining the rock pillar between the No. 3 quarry of PJSC “ArcelorMittal Kryvyi Rih” and the quarry of PJSC “Southern Mining Factory” with involvement into mining the reserves, extraction of which is possible within the existing mining and land allotments. Methods. It was used an integrated methodological approach, including mining and geological analysis of the rock massif between two adjacent quarries, which is subject to decommissioning; technical-economical analysis of the operational efficiency of the ore-dressing plant when decreasing the ore mine productivity as a result of cleaning-up the deposit; theoretical substabtiation of design and engineering decisions regarding the quarry objects parameters in the specified conditions and with the efficient development of a rock pillar that separates quarries. Findings. The state of the projects and plans for the development of mining operations in the No. 3 quarry of PJSC “ArcelorMittal Kryvyi Rih” and the quarry of PJSC “Southern Mining Factory” has been analyzed, which, in the coming years, indicates their spacial union. It has been revealed that the decommissioning of the rock pillar between the quarries is complicated both spacely and technologically, especially as a result of seismic restrictions, but the proposed solutions and measures simplify and make safe this stage as much as possible. The problem has been defined of reduce in the loading at the dressing plants proportionally to the decline in ore output. The technical-economical calculations substantiate that the corresponding sequential decommissioning the enrichment sections of the ore-dressing plants is expedient at one of the two cooperating ore mining and processing plants. Originality. An integrated approach has been improved regarding the evolution of mining and processing enterprises at the stage when their quarries approach to the maximum depths and final contours by taking into account adjacent ore mines as a single complex dynamic system. The analytical substantiation of drilling and blasting technology of the rocks destruction has been adapted to the specific conditions of decommissioning the pillar adjacent to both quarries. Practical implications. It is distinguished their high level of suitability for implementation and use in the designing of mining operations development in the quarries of PJSC “ArcelorMittal Kryvyi Rih” and PJSC “Southern Mining Factory”.
Roadkills of wild fauna in Indira Gandhi Wildlife Sanctuary, Western Ghats, India: Implications for management

A study was conducted on the deaths of mammals and repti]es caused by vehicular traffic on a road in Anaimalai lkthicles killed awide variety of mammals and rcptiles, many ofwhich were of endangcred species. Reptilian roadkills mostly occurred during the rainy season and in the wet forest region. Roadki]ls occurred most commenly at night. In order to reduce this impact, it is suggested that tourisL traffic should be rninimised during thc rainy season and during the night. Steps should be taken to maintain canopy contiguity beside the road. When constructing any further roads within the sanctuary, the sensitive rainforcst areas must be avoided.
In vivo and in vitro anti-inflammatory activity of Mangifera indica L . extract ( VIMANG ® )

A standard aqueous extract of Mangifera indicaL. , used in Cuba as an antioxidant under the brand name of VIMANG ®, was tested in vivo for its anti-inflammatory activity using commonly accepted assays. M. indica extract, administered topically (0.5–2 mg per ear), reduced ear edema induced by arachidonic acid (AA) and phorbol myristate acetate (PMA, ED 50 = 1.1 mg per ear) in mice. In the PMA model,M. indicaextract also reduced myeloperoxidase (MPO) activity. This extract p.o. administered also inhibited tumor necrosis factor alpha (TNF ) serum levels in both models of inflammation (AA, ED 50 = 106.1 mg kg−1 and PMA, ED50 = 58.2 mg kg−1). In vitro studies were performed using the macrophage cell line RAW264.7 stimulated with pro-inflammatory stimuli (LPS–IFN or the calcium ionophore A23187) to determine PGE 2 or LTB4 release, respectively. The extract inhibited the induction of PGE 2 with IC50 = 64.1 g ml−1 and LTB4 IC50 = 22.9 g ml−1. M. indicaextract also inhibited human synovial secretory phospholipase (PL)A 2 with IC50 = 0.7 g ml−1. These results represent an important contribution to the elucidation of the mechanism involved in the anti-inflammatory and anti-nociceptive effects reported by the standard M. indicaextract VIMANG®.
Pengaruh Pemeriksaan Pajak, Omset, Dan Sanksi Perpajakan Terhadap Kepatuhan Wajib Pajak Hotel Dan Restoran Di Kabupaten Jepara

Jepara many hotels and restaurants need to know compliance in tax payments, so the formulation of the problem in this research is how the influence of tax audits, turnover and tax penalties on hotel and restaurant taxpayer compliance in Jepara Regency? The purpose of this study was to analyze the effect of tax audits, turnover and tax sanctions on hotel and restaurant taxpayer compliance in Jepara Regency. The research sample is 104 hotel and restaurant taxpayers registered with the Regional Financial and Asset Management Agency of Jepara Regency. Data analysis tools used are multiple linear regression test and hypothesis test t. The results of data analysis revealed that the tax audit had a significant positive effect on hotel and restaurant taxpayer compliance in Jepara Regency, as evidenced by the significant value of 0,000; Tax sanctions have a significant positive effect on hotel and restaurant taxpayer compliance in Jepara Regency as evidenced by a significant value of 0.012; and Turnover does not affect the compliance of hotel and restaurant taxpayers in Jepara Regency proven by a significant value of 0.100. DOI: 10.26905/ap.v6i1. 4126
Endoscopic Septoplasty: A Retrospective Analysis of Indications and Outcome

Background: Endoscopic septoplasty is a minimally invasive surgical procedure for the correction of nasal septal deformity. Globally, nasal septal surgeries are rarely performed, and in our country these procedures are even more scarcely undertaken, partly due to dearth of facilities and to some extent, the expertise of embarking on this specialised surgical procedure. Therefore, we aimed to document the indications and the outcome of endoscopic septoplasty in our environment. Materials and Methods: This was a retrospective study of all consecutive patients that had endoscopic septoplasty at a state tertiary hospital over three years period. Ethical approval was obtained before commencement of the study. Patients’ medical records were retrieved. Biodata, clinical presentation, operative procedure and outcome were extracted and analyzed descriptively. Results: Fourteen patients had endoscopic septoplasty over the period under review, constituting 11 (78.6%) males and 3 (21.4%) females. Predominant clinical features were nasal obstruction (100%) and nasal septal deviation (100%). The main indication for procedure was deviated nasal septum. The outcome of the surgery was good, 2(14.3%) of the patients had nasal adhesions but no major complication was recorded. The length of hospital stay ranged between 3 and 5 days with a mean of 3.7 ± 0.9 days, and all the patients were discharged successfully. Conclusions: Endoscopic septoplasty is a safe surgery. The main indication for the procedure was deviated nasal septum, and the procedure has a favourable outcome among the operated patients.
A Regional Simulation to Explore Impacts of Resource Use and Constraints

Abstract : The Regional Simulator (RSim), designed to integrate land-use changes with ecological effects of changes in noise, water and air quality and species of special concern and their habitats. RSim projects land-use changes, its impacts for the five counties in Georgia surrounding and including Fort Benning, is applicable to other regions and a diversity of resource managers. Data layers that are widely available are being used in the model. Four scenarios implemented: urban growth, road-influenced urbanization, a new military training area, and hurricane impacts. Projections from the various scenarios suggest that urban growth will continue along the northern border of Fort Benning and may have impacts on noise, water, and air quality. Declines in habitat of gopher tortoise as a likely result of land-use changes because urban growth and other land-use changes are highly likely on lands that now provide this habitat. Habitat for red-cockaded woodpecker is not likely to be affected by projected land-cover changes under the urban growth and new military training scenarios because most of the limited habitat remaining for this species is under federal protection.
Family Practice and Palliative Care

Introduction: Due to wars and political changes, large-scale migration can occur from countries. Millions of people leave their places of residence and take refuge in other countries and affect the sociological, economic and health systems of the country they go to. Methods: Syrians under temporary protection, who applied to Sakarya University Training and Research Hospital adult emergency room between 01/03/2018-31/12/2019, were examined retrospectively. Thus, it was aimed to examine the effect of Syrian refugees on emergency services. Results: A total of 4310 Syrian patient applications are made, of which 2710 are male and 1600 are female. 3607 (83.7%) of the patients applied to the green outpatient clinic, 175 of the patients (4.1%) are forensic cases. 151 (86.3%) of forensic cases belong to male Syrian patients. Most of the patients are young adults, the average patient age is 30.8 ± 10.71 and the median age is 28. Conclusion: It was concluded that Syrians mostly apply to the green clinic in the adult emergency department, male and young patients apply more, forensic cases occupy a small proportion among these applications, and generally non-emergency cases use the emergency service. Refugees can be informed about applying to primary health care in non-emergency situations and organizing health infrastructure in this direction can reduce the emergency service workload.
Family Practice and Palliative Care

Introduction: The aim of the current study was to determine the self-efficacy and the medical adherence levels of the patients with type 2 diabetes and related factors in primary care. Methods: This was a descriptive study which was conducted in a family health center in Istanbul between February 2020 and May 2020. Information was collected from the patients over the age of 18 with a diagnosis of type 2 diabetes. A sociodemographic questionnaire form, SelfEfficacy Scale and Morisky Medication Adherence Scale were applied to participants face-to-face. Results: Two hundred and seven patients were included. Mean age of the participants was 59.05±10.74 years. Sixty percent of them were women, 85.0% were over 50 years, 69.9% had an additional disease, about half of them were diagnosed with diabetes for 10 years or more. It was found that individuals with diabetes had a median self-efficacy score of 72(64-79). The self-efficacy scores were higher in patients with normal BMI, those without additional disease and those with high physical activity level (p=0.004, p= 0.038, p=0.002 respectively). The medication adherence level was found medium in 174 (84.1%) of the patients. As the age increased medication adherence also tended to increase, and the adherence of people with normal BMI was higher (p=0.019 and p= 0.026 respectively). Conclusion: The self-efficacy and medical adherence of the diabetic patients participated in the current study were found to be at medium levels. It is understood that steps are needed to improve patients' self-efficacy levels and to increase their compliance with treatment.
Tinbergen Institute The Tinbergen Institute is the institute for economic research of the Erasmus Universiteit

This is an experimental study of a three-player power-to-take game where a take authority is matched with two responders. The game consists of two stages. In the first stage, the take authority decides how much of the endowment of each responder that is left after the second stage will be transferred to the take authority (the so-called take rate). In the second stage, each responder can react by destroying any part of his or her own endowment. Two treatments are considered: one in which all players are ‘strangers’ to each other (random matching), and one in which the responders know each other from outside the lab and are more or less close ‘friends’ (whereas the take-authority is again randomly selected). We focus on how the intensity of ties between responders impacts the decisions, beliefs, and emotions of both the responders and the take-authority. Some of our findings are: (1) although take rates are about the same, friends destroy more than strangers when faced with high take rates; (2) coordination on the same destruction level is stronger among friends; (3) the high level of coordination among friends can be explained by their emotional reaction towards one another; (4) the difference between the actual and expected take rate is a much better predictor of experienced emotions and destruction than the difference between the actual and (what is considered as) the fair
An iterated greedy algorithm with variable neighborhood descent for the planning of specialized diagnostic services in a segmented healthcare system

In this paper, a problem arising in the planning of specialized diagnostic services in a segmented public healthcare system is addressed. The problem consists of deciding which hospitals will provide the service and their capacity levels, the allocation of demand in each institution, and the reallocation of uncovered demand to other institutions or private providers, while minimizing the total equivalent annual cost of investment and operating cost required to satisfy all the demand. An associated mixed-integer linear programming model can be solved by conventional branch and bound for relatively small instances; however, for larger instances the problem becomes intractable. To effectively address larger instances, a hybrid metaheuristic framework combining iterated greedy (IGA) and variable neighborhood descent (VND) components for this problem is proposed. Two greedy construction heuristics are developed, one starting with an infeasible solution and iteratively adding capacity and the other starting with a feasible, but expensive, solution and iteratively decrease capacity. The iterated greedy algorithm includes destruction and reconstruction procedures. Four different neighborhood structures are designed and tested within a VND procedure. In addition, the computation of local search components benefit from an intelligent exploitation of problem structure since, when the first-level location variables (hospital location and capacity) are fixed, the remaining subproblem can be solved efficiently as it is very close to a transshipment problem. All components and different strategies were empirically assessed both individually and within the IGA-VND framework. The resulting metaheuristic is able to obtain near optimal solutions, within 3% of optimality, when tested over a data base of 60- to 300-hospital instances.
DIPARTIMENTO DI MATEMATICA

The brain is a really complex organization of connectivity whose principal elements are neurons, synapses and brain regions. To date this connectivity is not fully understood. Graph Theory represents a powerful tool in the study of brain networks. Though the complex organization of connectivity in human and animal brain has found a great impulse by the use of Graph Theory, some points result to be not very clear and need to be clarified, the weakness lies in the mismatching between the mathematical and neuroscientific approach. In this paper we focus, in particular, on two points: the concept of distance and a mathematical approach in treating functional and structural connectivity by means of the introduction of the parameter time. It is known that neural connectivity is classify into three categories: structural (or anatomical) connectivity, functional connectivity and effective connectivity. Structural connectivity can be visualized as the anatomical neural network in particular range of the life of human beings (and animals). It represents the synaptic connections, or directed anatomical pathways derived from neural tract tracing. It can be retained static only in absence of injuries or cerebral illnesses, or far from the childhood and old age. The functional connectivity, i.e. the temporal correlations between remote neurophysiological events as reaction to well specific external stimuli (e.g. social paradigms, social cognitive functions or other specific tasks), interests cerebral areas not necessarily close each other (in the sense of Euclidean distance). Aside we emphasize that the functional connectivity is very distinctive from effective connectivity, i.e. the influence a neural system exerts over another one [27]. The point is that these categories demand different kinds of graphs, except the case of resting state. In this paper we formalize in a mathematical way Preprint submitted to Reports of Math Department, QDD 187. December 16, 2014 the concept of distance and we introduce a function W (i, j, t) whose peculiarity is to give the weight of the edges composing the graph representing the functional connectivity. This function W (i, j, t) depends on the position of nodes i, j and on the time t at which a specific task is submitted to an health volunteer (and in in relation to the future to subjects affected by neurological diseases). Interestingly this function, in particular cases, comes down to the probability of edge formation. Basically these particular cases are the resting state and when a particular task do not affect the cerebral region the nodes belong to. This second case is rare since when performing a task the region of interest, ROI, are well known.
DISTRIBUTION AND THREATS OF PHENGARIS TELEIUS (LEPIDOPTERA: LYCAENIDAE) IN NORTHERN SERBIA

2 , Đurđevic, Aca 1 , The paper provides an overview on the distribution of recently discovered Scarce Large Blue (Phengaris (Maculinea) teleius) in northern Serbia (Selevenj Sands, Ludas Lake and Su- botica Sands). Mapping of the butterfly and its habitat has shown that most of the suitable habitats are limited to protected areas where at least some of the wet meadows with San- guisorba officinalis host plant are suitably managed and regularly mown. Given the known maximum dispersal distances of P. teleius, the suitable habitat patches possibly support two separate meta-populations. Fragmentation and isolation of remaining colonies repre- sent the main threats to long term survival of the species in Serbia. Based on IUCN crite- ria for regional red lists, the species qualifies as Endangered (EN) in Serbia and requires immediate conservation actions. Our results suggest that mowing is of high importance for maintaining suitable habitat. Until more is known about local ecological requirements of the species, general mowing recommendations should be followed with avoidance of mowing between mid June and mid September and providing a mosaic of different mow- ing regimes.