Miracle-dz/UniFAR-FTUs huggingface dataset:
Computing Effective Permeability of Porous Media with FEM and Micro-CT: An Educational Approach

Permeability is a parameter that measures the resistance that fluid faces when flowing through a porous medium. Usually, this parameter is determined in routine laboratory tests by applying Darcy’s law. Those tests can be complex and time-demanding, and they do not offer a deep understanding of the material internal microstructure. Currently, with the development of new computational technologies, it is possible to simulate fluid flow experiments in computational labs. Determining permeability with this strategy implies solving a homogenization problem, where the determination of the macro parameter relies on the simulation of a fluid flowing through channels created by connected pores present in the material’s internal microstructure. This is a powerful example of the application of fluid mechanics to solve important industrial problems (e.g., material characterization), in which the students can learn basic concepts of fluid flow while practicing the implementation of computer simulations. In addition, it gives the students a concrete opportunity to work with a problem that associates two different scales. In this work, we present an educational code to compute absolute permeability of heterogeneous materials. The program simulates a Stokes flow in the porous media modeled with periodic boundary conditions using finite elements. Lastly, the permeability of a real sample of sandstone, modeled by microcomputed tomography (micro-CT), is obtained.
Fresh frozen plasma utilization pattern in tertiary care hospital of North Western India

Background: Fresh Frozen Plasma (FFP) is mainly used in treatment of coagulation derangements; trauma emergencies. It is the most inappropriately used blood component. Since the guidelines for FFP use in a clinical setting are not well defined, this study aims at defining the appropriateness of use of FFP in the light of its risks and adverse effect. Audit of institute FFP usage with specific aim of assessing appropriate use, based on clinical indications and laboratory parameters in requisition form. Methods: Retrospective analysis of 10,753 FFP supplied in 3072 patients from June 2016 to December 2016 in SMS Hospital, Jaipur, Rajasthan, India was done in Department of Immunohaematology and Transfusion Medicine, SMS Hospital, Jaipur, Rajasthan, India. Detailed analysis of clinical indication, INR value, specialty, age, gender of patient was done. Results: 10,753 FFP was supplied to 3072 Patients. 6990 FFP was supplied to 1995 males. 3763 FFP was supplied to 1077 females. Clinical use of FFP for medical and surgical conditions was highest seen in Blood Cancers (13%) and Cardiosurgery (22.3%). 15.2% was available from Emergency Department. 1.9% of FFP was returned back. Patients with Deranged Coagulation Profile (DCP) require maximum transfusion (49.3), Bleeding patients (37.6%), DIC (3.3%). FFP used for plasmapheresis (2.6%). No information available about diagnosis (7.2%) was available from Emergency Department. Conclusions: FFP is most inappropriately used blood component (39.57%) and should be used judiciously. Regular audit of blood components serves as tool for accomplishment of quality tools and to understand clinical transfusion practices.
Asset pricing in an Islamic economy

ABSTRACT We define an Islamic economy as one with borrowing restrictions, no leverage, and no risk-free asset. We derive a consumption-based asset pricing model for this economy under standard preferences. We demonstrate that news to consumption growth is the main driver of Islamic financial markets, but the degree of borrowing constraints also affects the pricing of Islamic assets. Using Saudi Arabian data, simulations show that our model does a good job in matching the observed equity premium as well as the volatility of the market return. Our model implies that the price-dividend ratio predicts dividend growth, and as a result that prices are driven mainly by cash-flow news rather than by discount rate news. Empirical tests show that our model is consistent with the data.
Government agencies and their roles in the diffusion of intellectual property policy in China: analysis based on a policy literature reference network

The relationship between government agencies is an important basis for the continuous innovation and diffusion of policies. This research explores how government agencies, as policymakers and promoters, play an important role in the innovation and diffusion of intellectual property policies in China. Based on the reference relationship in the policy literature, we build a large sample of intellectual property policy diffusion networks in China and present the trends and characteristics of government agencies’ policy diffusion. The results show that intellectual property policy diffusion in China is positively related to many institutional factors, for example, network positioning, authority, economic development level, and policy timeliness, but it is not significantly correlated with geographical proximity. Points for practitioners This study helps to understand how government relationships affect policy diffusion in this particular political environment in China. The conclusions of this study on the role of government agencies in policy diffusion can provide some guidance for public administration departments to formulate and disseminate policies, and expand the study of intergovernmental relations and policy innovation from the perspective of policy text mining and quantification.
Quality of dwarf cashew tree seedlings as a result of methods for breaking dormancy, container volume and application of bovine biofertilizer

The dwaf cashew tree presents enormous economic relevance for the Brazilian northeast. When establishing orchards of this species, the most important phase is the formation of the seedlings. Therefore, studies aiming to improve growth aspects and seedling qualities are extremely relevant. In this sense, the present study aimed to evaluate the growth and quality of dwarf cashew tree seedlings as a result of methods for breaking dormancy, container volume and application of bovine biofertilizer. The experiment design was completely randomized, with a 2×2×5 factorial scheme and six replicates; the experimental unit consisted of five seedlings. The treatments involved two methods of breaking dormancy (scarification with sandpaper and immersion in water), two container volumes (1 and 2 kg) and five doses of bovine biofertilizer (0, 2.5, 5.0, 7.5 and 10 mL). The method for breaking dormancy with normal water for 24 hours was the most adequate for the formation of dwarf cashew tree seedlings. The doses of 7.5 and 10 mL of bovine biofertilizer provided higher growth and quality in the dwarf cashew tree seedlings. The volume of 2 kg of substrate was the most suitable volume for growing dwarf cashew trees.
Cuspidal edges with the same first fundamental forms along a knot

Letting [Formula: see text] be a compact [Formula: see text]-curve embedded in the Euclidean [Formula: see text]-space ([Formula: see text] means real analyticity), we consider a [Formula: see text]-cuspidal edge [Formula: see text] along [Formula: see text]. When [Formula: see text] is non-closed, in the authors’ previous works, the local existence of three distinct cuspidal edges along [Formula: see text] whose first fundamental forms coincide with that of [Formula: see text] was shown, under a certain reasonable assumption on [Formula: see text]. In this paper, if [Formula: see text] is closed, that is, [Formula: see text] is a knot, we show that there exist infinitely many cuspidal edges along [Formula: see text] having the same first fundamental form as that of [Formula: see text] such that their images are non-congruent to each other, in general.
Prevalence of lower urinary tract symptoms in patients of benign prostatic hyperplasia attending Tertiary Care Hospital in the State of Andhra Pradesh

Background: There are only few studies available on the prevalence of lower urinary tract symptoms (LUTS) evaluated by the international prostate symptom score tool (IPSS), and it has not been validated in the Indian population. Aim: The purpose of the present study was to determine the prevalence of lower urinary tract symptoms in patients of benign prostatic hyperplasia (BPH) and to validate the IPSS tool in our studied population. Materials and Methods: One hundred BPH aged >51 years attending the outpatient department of Urology were recruited for the study. LUTS were evaluated using the international IPSS. The IPSS was validated for reliability and reproducibility by Cronbach's alpha and intraclass correlation coefficient (ICC). Results: The coefficients of Cronbach's alpha and ICC were 0.80 and 0.86, respectively. The majority of patients had moderate symptoms (72%) followed by severe symptoms (17%). Severity of symptoms increased with age (P Conclusion: The results of the study showed that IPSS could serve as a good instrument to assess LUTS in this population.
Impact of Septoplasty on hearing and middle ear function

Nasal obstruction due to septal deviation is one of the common ENT complaints. It can affect hearing and middle ear ventilation by altering the Eustachian Tube (ET) function. Eustachian tube is a communication between middle ear and the nasal cavity first described by Bartolommeus Eustachus in 1563. The role of ET is to ventilate the middle ear to equilibrate air pressure in middle ear. Air enters when ET opens during swallowing and equalizes the pressure between internal and external segments of tympanic membrane. ET dysfunction can occur due to obstruction of ET orifice in patients with Deviated Nasal Septum (DNS) due to nasal inflammation and increased secretion from nasal glands which accumulate and block the tube. This can lead to reduced middle ear ventilation leading to negative middle ear pressure and can impact hearing. This leads to fullness of ears, ear ache and tinnitus.
Parametric Numerical Study on the Performance Characteristics of a Micro-Wave Rotor Gas Turbine

In this paper, an alternative micro-gas turbine is proposed, where the traditional compressor-turbine arrangement is replaced by an axial, throughflow wave rotor. The investigated wave rotor features symmetrically cambered wall profiles and angled port arrangement for shaft power extraction and uses shock and rarefaction waves for pressure exchange and to achieve gas compression and expansion within a single device. A validated quasi-one-dimensional model that solves the laminar Navier-Stokes equations using a two-step Richtmyer scheme with minmod flux limiter is employed to characterise and examine microgas turbine behaviour. The model accounts for wall heat transfer, flow leakage, wall friction and inviscid blade forces. In addition, modified boundary conditions consider finite passage opening effects and a simple steady-flow combustor model is defined that links the high pressure inand outlet ports. The model is used to conduct a parametric study to investigate the effects of leakage gap, heat release rate, exhaust backpressure, as well as profile camber on gas turbine performance with a focus on generated combustor compression and expansion efficiency, shaft power and system efficiency. The implications of combustor pressure loss as well as effects of a potential recuperator are discussed as well. The results identify axial leakage and combustor pressure loss as primary drivers for enhanced performance. Finally, the results reinforce the capacity of wave rotors to compress and expand gas efficiently, while thermal efficiency remains below 10 percent.
Finite element analysis of porous stemmed hip prosthesis for children

Femur bone stress shielding is known to be a significant factor in aseptic loosening or failure of hip replacements. This paper considers the development of a porous stemmed hip implant for children patient in order to reduce the effects of stress shielding and also maintaining acceptably low levels of stress in other areas of prosthesis. By using finite element modeling, the stresses in the proximal femur using porous stem were calculated and analyzed. The developed model is considered safe in terms of mechanical strength. The porous region does not bring significant effect on stress distribution but produces a considerable amount of compressive strain.Femur bone stress shielding is known to be a significant factor in aseptic loosening or failure of hip replacements. This paper considers the development of a porous stemmed hip implant for children patient in order to reduce the effects of stress shielding and also maintaining acceptably low levels of stress in other areas of prosthesis. By using finite element modeling, the stresses in the proximal femur using porous stem were calculated and analyzed. The developed model is considered safe in terms of mechanical strength. The porous region does not bring significant effect on stress distribution but produces a considerable amount of compressive strain.
Noninvasive Blood Pressure Classification Based on Photoplethysmography Using K-Nearest Neighbors Algorithm: A Feasibility Study

Blood pressure (BP) is an important parameter for the early detection of heart disease because it is associated with symptoms of hypertension or hypotension. A single photoplethysmography (PPG) method for the classification of BP can automatically analyze BP symptoms. Users can immediately know the condition of their BP to ensure early detection. In recent years, deep learning methods have presented outstanding performance in classification applications. However, there are two main problems in deep learning classification methods: classiﬁcation accuracy and time consumption during training. We attempt to address these limitations and propose a method for the classification of BP using the K-nearest neighbors (KNN) algorithm based on PPG. We collected data for 121 subjects from the PPG–BP figshare database. We divided the subjects into three classification levels, namely normotension, prehypertension, and hypertension, according to the BP levels of the Joint National Committee report. The F1 scores of these three classification trials were 100%, 100%, and 90.80%, respectively. Hence, it is validated that the proposed method can achieve improved classification accuracy without additional manual pre-processing of PPG. Our proposed method achieves higher accuracy than convolutional neural networks (deep learning), bagged tree, logistic regression, and AdaBoost tree.
Chapter 17 Accretionary orogens reworked in an overriding plate setting during protracted continent–continent collision, Sveconorwegian orogen, southwestern Sweden

Abstract The Eastern Segment in the Sveconorwegian orogen, southwestern Sweden, is dominated by 2.0–1.8, 1.7 and 1.5–1.4 Ga crust; and the overlying Idefjorden terrane by 1.6–1.5 Ga crust. Assuming reorganization of a subduction system prior to 1.5–1.4 Ga and applying a sinistral transpressive component of disruption during the subsequent Sveconorwegian orogeny (1.1–0.9 Ga), the Idefjorden terrane is inferred to be indigenous outboard rather than exotic with respect to the continental plate Fennoscandia (Baltica). The geological record then records successive westwards shift of accretionary orogens along a convergent plate boundary for at least 500 million years. Sveconorwegian foreland-younging tectonic cycles at c. 1.05 (or older)–1.02 Ga (Idefjorden terrane) and at c. 0.99–0.95 Ga (Eastern Segment) prevailed. Crustal thickening and exhumation during oblique convergence preceded migmatization, magmatic activity and a changeover to an extensional regime, possibly triggered by delamination of continental lithosphere, in each cycle. Convergence after 0.95 Ga involved antiformal doming with extensional deformation at higher crustal levels (Eastern Segment) and continued magmatic activity (Idefjorden terrane). An overriding plate setting is inferred during either accretionary orogeny or, more probably, protracted continent–continent collision. Continuity of the erosional fronts in the Grenville and Sveconorwegian orogens is questioned.
Impact of the New Zealand Equivalent to the International Financial Reporting Standard 16 Leases (NZ IFRS 16) on financial statements of listed companies

In February 2016, the External Reporting Board (XRB) introduced the New Zealand version of IFRS 16 named the New Zealand Equivalent to International Financing Reporting Standard 16 Leases (NZ IFRS 16). Effective 1 January 2019, adoption of this accounting standard is compulsory for Tier 1 and Tier 2 for-profit entities (NZ IFRS 16, par. NZ 2.1). A review of existing academic and professional publications indicated the impact of capitalization of operating leases varies significantly depending on country and industry. Therefore, the study’s problem was linked to the impact of the NZ version of IFRS 16 (NZ IFRS 16) on the financial statements of the NZX listed firms. NZ IFRS 16 (Leases) requires companies to initially recognise right-of-use assets at cost and lease liabilities at present value (NZ IFRS 16, par. 22, 23 and 26). This study capitalizes the operating leases for a sample of 76 New Zealand listed firms using data obtained from the reported financial statements of these companies for 2017. The accounting treatment of the off-balance sheet operating leases is largely based on Constructive Capitalization by Imhoff, Lipe & Wright (1991), with several modifications based on the literature review. The findings are described by descriptive statistics and are tested with parametric and non-parametric statistical tools. Application of NZ IFRS 16 will produce a statistically significant effect on the metrics and ratios depicting the financial position and financial performance of the sampled firms, except for EBITDA and Interest cover. In addition, based on quantitative benchmarks of materiality identified by Eilifsen & Messier (2015), the impact of NZ IFRS 16 is material for the Profit before tax and Total assets metrics of the sampled listed companies. The study provides specific New Zealand evidence on the impact of implementation of NZ IFRS 16. The results can be used by stakeholders interested in information about the lease-related assets and obligations of firms operating in the New Zealand economy. Some findings about the impact of capitalization of operating leases are useful to management and/or the decision-makers of New Zealand listed firms.
Idea Co-creation on Social Media Platforms

Innovation scholars have long been discussing social media as a rich source of information, knowledge, and new ideas, yet, whether or how social media can directly intervene with organizational ideation processes remains unclear. In this study, we investigate the impact of external and enterprise social media platforms on organizational ideation. Grounded in 79 cases and adapting social capital theory in social media contexts, this study attempts to develop a theory of social ideation. Social ideation consists of social media-enabled mechanisms that generate social capital, enable multi-level social exchanges, foster idea co-creation activities such as idea sourcing, filtering, elaboration, and integration, and ultimately lead to effective ideation. Our study contributes to social media and innovation research by revealing the intermediary mechanisms that link the use of social media platforms to organizational ideation performance.
Simulating the Effect of Torrefaction on the Heating Value of Barley Straw

Many recent studies focused on the research of thermal treated biomass in order to replace fossil fuels. These studies improved the knowledge about pretreated lignocellulosics contribution to achieve the goal of renewable energy sources, reducing CO2 emissions and limiting climate change. They participate in renewable energy production so that sustainable consumption and production patterns can by ensured by meeting Goals 7 and 12 of the 2030 Agenda for Sustainable Development. To this end, the subject of the present study relates to the enhancement of the thermal energy content of barley straw through torrefaction. At the same time, the impact of the torrefaction process parameters, i.e., time and temperature, was investigated and kinetic models were applied in order to fit the experimental data using the severity factor, R0, which combines the effect of the temperature and the time of the torrefaction process into a single reaction ordinate. According to the results presented herein, the maximum heating value was achieved at the most severe torrefaction conditions. Consequently, torrefied barley straw could be an alternative renewable energy source as a coal substitute or an activated carbon low cost substitute (with/without activation treatment) within the biorefinery and the circular economy concept.
Neutrophil to lymphocyte ratio but not ring enhancement could predict treatment response and new lesion occurrence in patients with hepatocellular carcinoma by drug eluting beads transarterial chemoembolization

Background: To investigate the association of ring enhancement with neutrophil to lymphocyte ratio (NLR) and the predicting values of ring enhancement and NLR for treatment response and new lesion occurrence in hepatocellular carcinoma (HCC) patients post drug eluting beads transarterial chemoembolization (DEB- TACE). Methods : Sixty- ve consecutive HCC patients received DEB-TACE by CalliSpheres ® were enrolled and. Clinical responses were assessed by mRECIST criterion. Ring enhancement was assessed at 4–6 weeks and NLR was assessed within 24 hours post treatment. New lesion was evaluated at last follow up of each patient. Overall response rate (ORR) was the percentage of patients achieved complete response (CR) and partial response (PR). Results: After DEB-TACE, CR and ORR were 18.5% and 87.7%, respectively. Additionally, ring enhancement was not correlated with absolute neutrophil count (ANC), lymphocytes (LYM) or NLR. No difference was found regarding CR, ORR or new lesion between patients with or without ring enhancement. In addition, the ANC of patients in CR group was lower compared to non-CR group, and patients with lower NLRs were likely to achieve better CR and less new lesion. Subgroup analysis disclosed that patients with multifocal lesions and higher Barcelona Clinic Liver Cancer (BCLC) stage were of worse CR. Conclusions: NLR but not ring enhancement post treatment could predict treatment response and new lesion occurrence of patients with HCC treated by DEB-TACE.
Calculating cargo securing elements on a railway platform under the impact of a spatial force system

Form a design (or dynamic) model on the basis of studying the physical model of a mechanical system (object); build mathematical models of cargo securing with inclined side surfaces of stop elements (bars) with simultaneous influence of longitudinal and lateral forces; perform a mathematical solution of the problem in the form of specific analytical formulas for calculating inclined stop bars as one of the cargo securing elements on the railway platform; make a specific example of the calculation of the forces acting on the cargo securing elements.
Genetic variability, heritability and genetic advance studies for yield components in F2 generation of cowpea (Vigna unguiculata L. Walp)

The present investigation was carried out to study the genetic variability, heritability, expected genetic advance for growth and yield traits in F2 generation of 24 hybrids of cowpea. Wide range of variability was observed for all the traits except number of branches per plant and pod width. The high genotypic coefficient of variation was recorded for number of pods per plant, number of pods per cluster, mean pod weight and 100-seed weight. Higher heritability estimates coupled with high genetic advance as per cent of mean were observed for plant height, number of branches per plant, flowers per cluster, pods per cluster, per cent pod set, days to last harvest, pod length, pod weight, number of seeds per pod, 100 seed weight and pod yield per plant. Hence, selection based on these characters would be rewarding for further improvement of cowpea.