Miracle-dz/UniFAR-FTUs huggingface dataset:
Instability of stratified air-water flows in circular pipes

This work deals with stability of two-phase stratified air-water flows in horizontal circular pipes. For this purpose, we performed a linear stability analysis, which considers all possible three-dimensional infinitesimal disturbances and takes into account deformations of the air-water interface. The main results are presented in form of stability maps, which compare well with the available experimental data. The neutral stability curves are accompanied by the corresponding wavenumbers and wave speeds of the critical perturbations, as well as by spatial patterns of their velocity components. Accordingly, several modes of the critical perturbation are revealed. Long waves are found to be the critical perturbation over part of the stability boundary, and they are affected by the surface tension due to the confinement effect of the lateral direction. Exploring the effect of pipe diameter on the stability boundary and critical perturbations shows that for small water holdups (i.e., thin water film) the scaling of the critical gas velocity by the gas Froude number is valid for pipe diameters larger than about 0.1m, where the surface tension effects due to the lateral confinement become negligible. Comparing results obtained in pipe, square duct, and two-plate geometries, we show that there are cases where the simplified geometry of two parallel plates can be employed to model the realistic geometry reasonably well.
Implementasi Transformasi Digital Layanan Keuangan Mahasiswa Pasca Pandemi Covid-19 di Universitas Negeri Malang

Pandemi covid-19 telah mempercepat transformasi digital pada layanan publik. Pemerintah terus mempertahankan pendekatan digital dalam layanan publik, karena telah terbukti memberikan manfaat bagi masyarakat. Hal ini juga dilakukan oleh Universitas Negeri Malang. Pandemi covid-19 telah membawa perubahan layanan keuangan mahasiswa dari layanan manual menjadi layanan digital yang tetap dipertahankan sampai saat ini. Kegiatan ini dalam rangka pengimplementasian transformasi digital dalam layanan keuangan mahasiswa pasca pandemi covid-19. Metode pelaksanaan kagiatan meliputi beberapa tahapan antara lain observasi, dokumentasi, wawancara, dan pendampingan implementasi. Hasil kegiatan ini menunjukkan bahwa Universitas Negeri Malang melakukan transformasi layanan keuangan secara maunal menjadi layanan berbasis digital dalam layanan keuangan mahasiswa, dengan mengembangkan beberapa sistem informasi yaitu aplikasi Qontak, monitoring payment, sistem informasi piutang, siakad admin, dan sipetang. Ditinjau dari 5 (lima) dimensi model SERVQUAL, kualitas layanan digital yang diberikan telah memenuhi kelima dimensi tersebut yaitu reliability, assurance, tangibles, empathy, dan responsiveness. Transformasi digital layanan keuangan mahasiswa dapat meningkatkan kualitas layanan kepada mahasiswa
Revisiting the monetary transmission mechanism via banking from the perspective of credit creation

Many transmission channels of monetary policy have been proposed to enrich and deepen the understanding of its mechanisms. However, some channels have not been clarified, particularly for those unconventional quantitative policies implemented after 2008 financial crisis. In this paper, we develop a unified model of a credit economy where bank regulations and decisions and loanable funds market are placed at a central position, while stocks and flows are incorporated with each other to formulate banks' credit creation and circulation. We find that bank regulations can induce some new channels of monetary transmission by imposing credit constraints, including the new bank capital channel, the credit supply channel, the new bank balance sheet channel, and the new bank risk-taking channel. Comparing these channels with the traditional ones, we underscore the impact of bank regulations on monetary transmission. As aggregate demand can be decomposed into two monetary flows generated by money circulation and bank lending respectively, the direct channels of monetary transmission to aggregate demand can be renewed as follows: the money channel, the narrow money circulation channel, the new bank lending channel, and the repayment channel. In addition, based on the relevant data from the United States, we have conducted vector autoregressive (VAR) impulse response analysis to confirm the effectiveness of some direct channels. Our work not only aids in revisiting the monetary transmission from a credit view but also facilitates the assessment of efficiency of monetary policy.
An Algorithm for Correct Computation of Reeb Spaces for PL Bivariate Fields

The Reeb space is a topological structure which is a generalization of the notion of the Reeb graph to multi-fields. Its effectiveness has been established in revealing topological features in data across diverse computational domains which cannot be identified using the Reeb graph or other scalar-topology-based methods. Approximations of Reeb spaces such as the Mapper and the Joint Contour Net have been developed based on quantization of the range. However, computing the topologically correct Reeb space dispensing the range-quantization is a challenging problem. In the current paper, we develop an algorithm for computing a correct net-like approximation corresponding to the Reeb space of a generic piecewise-linear (PL) bivariate field based on a multi-dimensional Reeb graph (MDRG). First, we prove that the Reeb space is homeomorphic to its MDRG. Subsequently, we introduce an algorithm for computing the MDRG of a generic PL bivariate field through the computation of its Jacobi set and Jacobi structure, a projection of the Jacobi set into the Reeb space. This marks the first algorithm for MDRG computation without requiring the quantization of bivariate fields. Following this, we compute a net-like structure embedded in the corresponding Reeb space using the MDRG and the Jacobi structure. We provide the proof of correctness and complexity analysis of our algorithm.
The Stakeholders’ Opinions on the Learner-Centred Pedagogies Used in Competence-Based Curriculum (CBC) in Selected Secondary Schools in Kampala District

The study investigated the Stakeholders’opinions on learner-centred pedagogies used in Competence-Based Curriculum (CBC) in selected Secondary schools A and B found in Kampala District. The Learner-centred Pedagogies (LCP) under the CBC place the learner at the centre of the learning process, promoting active participation and self-directed learning. The study was guided by curriculum implementation theory by Gross et al (1971). The study adopted a qualitative research approach that analysed the learner centred pedagogies from the subjective point of view while involving the study participants’ opinions. The study followed the Interpretivist paradigm which enabled participants to create and construct their social reality in line with the study. The study also adopted a single case study research design in order to get an in-depth understanding of the opinions of stakeholders on CBC. A sample of 22 participants including Headteachers (H), Teachers (T) and Students (S) were selected purposively and used for the study. This enabled the researcher to gather qualitative responses, from the best-fit participants whose responses were relevant to the study. The study employed the use of the interviews for the two headteachers and eight teachers, focus group discussions to students while considering in each group six students from each school and observation method to collect data. Through triangulation the methods enabled the researcher to collect in-depth subjective reality which was analysed using thematic analysis. The findings of the study indicated that; to some extent the learner centred pedagogies used by teachers are good and they should be used when teaching. This was because the methods encourage full participation of learners and development of skills. However, to another extent the finding of the study also revealed that, the learner centred pedagogies used by teachers are not good due to inadequate teaching skills by teachers, limited materials to use and methods are time consuming. The study recommended that, the government of Uganda through the MoES to; train teachers so as to equip them with the necessary skills of teaching, facilitate schools with enough educational facilities and materials to use and continuously monitor, supervise and evaluate CBC practices in schools.
HERMIONE, EVOLUTION OF ATe-BEARING EPITHERMAL MINERALIZATION, ARGOLIS, HELLAS

Τα κοιτάσματα Cu-Te σιδηροπυρίτη της Eρμιόνης, Αργολίδας φιλοξeνούνται σe οφιόλιθους Μeιοκαινικής ηλικίας. Οι οφιόλιθοι υπόκeινται σe έναν άργιλο-ψαμμιτικό σχηματισμό μe eνδιαστρώσeις ασβeστόλιθων και μαγγανιούχων ιζημάτων. Τα κοιτάσματα eμφανίζονται ως φακοeιδή ή στρωματόμορφα σώματα ή ως φλέβeς. Τα eν λόγω κοιτάσματα σχeτίζονται μe ηφαιστeιακή δραστηριότητα σe τάφρο ηφαιστeιακού τόξου στα πeριθώρια μιας παλαιό-ηπeίρου. Στους οφιόλιθους διeισδύουν χαλαζιακές αριστeρόστροφeς φλέβeς μe Β- έως ΒΒΑ-κατeυθύνσeις που πληρώνονται μe γαλακτόχρωμο χαλαζία-σιδηροπυρίτη-ασβeστίτη. Τις χαλαζιακές φλέβeς συνοδeύουν ζώνeς eξαλλοίωσης από γαλακτόχρωμο χαλαζία-ασβeστίτη, αλβίτη-σeρικίτη-χλωρίτη, και χαλκηδόνιο-eπίδοτο-αργιλικά ορυκτά. Η Te- μeταλλοφορία αναπτύσσeται σe δύο ακόλουθα στάδια που χαρακτηρίζονται από τις παραγeνέσeις:σιδηροπυρίτης-(μαγνητοπυρίτης)-μαγνητίτης-χαλκοπυρίτης-σφαλeρίτης (Στάδιο Ι) και γαληνίτης-σφαλeρίτης-φρeϊβeργίτης-μαρκασίτης-χαλκοσύνης (Στάδιο II). Η eφαρμογή του γeωθeρμομέτρου κοβαλτιούχου σιδηροπυρίτη-χαλκοπυρίτη καθόρισe δύο θeρμοκρασιακά πeδία eξισορρόπησης της μeταλλοφορίας στους 220°-250°C (Στάδιο Ι) και 120°-195°C (Στάδιο II) (Skounakis andSovatzoglou-Skounaki, 1981). Οι υπολογιζόμeνeς ισοτοπικές τιμές δ Ο και OD στους 200° και 250°C υποδeικνύουν μαγματική προέλeυση του μeταλλοφόρου ρeυστού. Οι υπολογιζόμeνeς τιμές O I4 SH2S αποκαλύπτουν μαγματική πηγή για το θeίο, μe μικρή συνeισφορά από τα υποθαλάσσια ιζήματα που καλύπτουν τους οφιόλιθους, eνώ το τeλλούριο προτeίνeται ότι προέρχeται από βασική-υπeρβασική μαγματική πηγή.
The Rodney L. White Center for Financial Research The Effect of Macroeconomic News on Beliefs and Preferences: Evidence from the Options Market

We examine the effect of regularly scheduled macroeconomic announcements on the beliefs and preferences of participants in the U.S. Treasury market by comparing the option-implied state-price density (SPD) of bond prices shortly before and after the announcements. We find that the announcements reduce the uncertainty implicit in the second moment of the SPD regardless of the content of the news. The changes in the higher-order moments, in contrast, depend on whether the news is good or bad for economic prospects. Using a standard model for interest rates to disentangle changes in beliefs and changes in preferences, we demonstrate that our results are consistent with time-varying risk aversion in the spirit of habit formation. ∗We thank Frank de Jong, Joost Driessen, Michael Fleming, Michael Rockinger, Nick Souleles, and seminar participants at the Bank of Italy, ESSEC, St. Anna School of Advanced Studies, University of Amsterdam, Università Bocconi, University of Georgia, University of Lausanne, and University of Reading. We also thank Tim Bollerslev, Jun Cai, and Frank Song for providing some of the announcement data. Financial support from the Alea Research Center at the University of Trento and the Rodney L. White Center for Financial Research at the University of Pennsylvania is gratefully acknowledged.
Temporal dynamics of invertebrate community assembly in Lake Victoria since the late Pleistocene based on chitinous remains

Preserved assemblages of invertebrate remains in lacustrine sediment reveal temporal variations of community composition and environmental conditions. However, records for large tropical lakes are scarce. Lake Victoria, the largest tropical lake, has a dynamic history of changes in water level, biogeochemistry and fish community composition over the past ~17,000 cal yr BP. In order to quantify changes in the invertebrate assemblage of Lake Victoria from the late Pleistocene throughout the Holocene, we examined chitinous remains of Cladocera and larval dipterans (Chironomidae and Chaoboridae) from a sediment core (37 m water depth) dated from ~13,700 cal yr BP to present. We identified four major phases in the invertebrate assemblage throughout this period of lake history. Firstly, Chironomidae and Chaoboridae appeared at low abundances during the earliest stages of lake inundation in the late Pleistocene, at a time when Cladocera were notably absent. Secondly, chaoborids and chironomids increased in abundance during the mid‐Holocene, which coincided with high diatom production toward the end of the Holocene African Humid Period. Thirdly, starting ~4,700 cal yr BP, Alona, a predominantly littoral cladoceran genus, consistently appeared in the invertebrate assemblage alongside changes in mixing regimes and persisted throughout the late Holocene to the present. Fourthly, the arrival of both Chydorus and Bosmina longirostris marked the establishment of an abundant cladoceran assemblage at ~1,350 cal yr BP. The assemblage then gradually shifted toward the increasing dominance of B. longirostris, a planktonic cladoceran. Several of the observed changes in the invertebrate assemblage occurred concurrently with changes in climatic conditions in East Africa and diatom productivity that have been previously recorded in Lake Victoria. This multi‐millennial record of sedimentary invertebrate assemblages in Lake Victoria elucidates some of the temporal development of these communities throughout most of the dynamic modern history of the ecosystem.
Geotechnical Engineering Curriculum Modules for High School Math and Science Classes

High school science and math classes can often seem irrelevant to the everyday lives of students leading to difficulties in engaging students in these topics. Moreover, limited opportunities for hands-on learning can further perpetuate perceptions of subject matter difficulty and result in limited exposure to available career paths. By incorporating hands-on curriculum modules in geotechnical engineering, it is possible to overcome these issues while providing students with real-world applications making the material more engaging and meaningful. This paper presents two curriculum modules developed as part of the National Science Foundation funded Research Experiences for Teachers (RET) site at North Dakota State University. These modules - one for a high school science class and one for a high school math class - were developed with the aim of promoting science, technology, engineering and mathematics education (STEM)
Chemical Composition Analysis of Citrus×limon (L) Osbeck Leaf Essential Oil and Its Activity as an Anti-Cervical Cancer Agent

Cervical cancer is a life-threatening disease. The use of synthetic drugs for its treatment can have serious adverse effects on the body. Therefore, it is necessary to search for natural drugs that are safe for the body. One of the secondary metabolites contained in plants is essential oils (EO), EO are known to have activity as anti-cervical cancer. Genus Citrus is known for containing EO compounds, one of the species of the genus is Citrus×lemon (L) Osbeck. The purpose of this study is to identify the chemical components of the EO isolated from the leaves of C×limon and to evaluate its cytotoxic activity against cervical cancer. EO was isolated from C×limon leaves collected in Padang City, Indonesia using the hydrodistillation method. EO was then analyzed by GC-MS. To determine its cytotoxicity, BSLT was conducted, followed by molecular docking and MTT assays. The experiment yielded a yellow liquid with a density of 0,8684 g/mL and a yield of 0,181%. GC-MS analysis of the EO identified 56 chemical components, with the main compounds are (-)-β-pinene (7.32%), (-)-limonene (28.40%), geranial (5.54%), caryophyllene (5.22%). The EO showed high toxicity against Artemia salina L larvae, with an LC50 value of 3,697 µg/mL. Through molecular docking, it is known the (-)-limonene, geranial, (-)β-pinene and caryophyllene compounds as the main compounds in of EO are known to bind to form complexes with cervical cancer proteins (HPV18E6). MTT assay showed weak cytotoxic activity of EO against HeLa cells, with an IC50 of 218.9 µg/mL.
Measuring the effectiveness of retrofit, behavioural and transformational adaptation solutions to heat waves

Scientific evidence suggests that climate change is increasing the severity and frequency of heat waves. In temperate climate cities, where overheating has not been a common issue, households will increasingly suffer from high indoor temperatures. In this work, the effectiveness of different adaptation strategies is measured according to the improvement of indoor thermal comfort during a heat wave. The aim is to compare the effectiveness of energy retrofitting solutions, behavioural adaptation and transformational adaptation solutions. Individual and combined adaptation solutions are evaluated using the Ladybug Tools simulation package.
Spatial changes of inter‐plate coupling inferred from sequences of small repeating earthquakes in Japan

We extract sequences of small repeating earthquakes to clarify inter‐plate coupling of subducting plates over a large area of the Japanese Islands. As a result, many sequences are detected at the Philippine Sea plate subducting from the Ryukyu trench and Pacific plate subducting from the Kuril‐Japan trench. The average slip‐rates and standard deviations estimated from the sequences show substantial spatial changes of inter‐plate coupling. The large deviations of slip‐rates correspond to the occurrence of episodic slips such as after‐slips following large earthquakes. Constant slip‐rates approaching the relative plate motion indicate weak coupling areas. Slip deficits and sparse distributions of repeating groups suggest locked areas. In the Nankai trough, deep low‐frequency earthquakes in the transition zone and burst‐type repeating sequences within plates have not been located in the downdip direction of groups with slow slip‐rates. This suggests that the space‐time characteristics of inter‐plate coupling affected these seismic events.
Correlation between Thoracic Kyphosis and Shoulder Joint Position Sense among Health Care Workers

Background: Healthcare workers especially those dealing with the patient and involved in physical demanding, intense and repetitive tasks in their practice are more predisposed to work-related musculoskeletal disorders (WMSDs). These WMSDs lead to prolonged postural abnormality and pain, which negatively affect productivity and quality of life. Objectives: This study aimed to identify the correlation between thoracic kyphosis and shoulder joint position sense among healthcare workers. Patients and methods: A cross-sectional observational study include forty-five participants of both gender with thoracic kyphosis detected by screening measurements at the start. Their ages ranged from 30-49 years old and their thoracic kyphotic angle (TKA) ranged according to age into 2 groups: (Group A) their ages ranged from 30 to 39 years old and (group B) their ages ranged from 40 to 49 years old. All subjects were right-handed. A bubble inclinometer is used to measure both TKA and joint position sense (JPS) of dominant arm among healthcare workers. Results: There was a moderate correlation between thoracic kyphosis angle and shoulder flexion and abduction joint position error (JPE) at r = 0.469 & p = 0.001 and r = 0.462 & p = 0.001 respectively. Conclusion: Thoracic kyphosis directly affects shoulder joint proprioception. Therefore, dorsal spine assessment should be considered during evaluation of shoulder joint and vice versa. So better control of the symptoms and better plan of treatment for preventing the potential disabling condition.
Landscape narratives and the construction of meaning in the contemporary urban canal-scape

The research explores the ways in which individuals within a diverse urban society perceive and interact with the regenerated urban canal-scape examining the process and dynamics by which individuals construct personal meanings relating to the canal landscape with emphasis on the central canal area (Brindleyplace) of Birmingham, UK. Specific phenomenological and performative methodologies are developed to elicit qualitative, self-reflexive landscape responses focussing on the use of walking in the landscape, combined with narrative-representational approaches, both vision and language-based. Data are collected using a series of in-situ and ex-situ studies including: collaborative ‘Walking-and-Talking’ exercises; semistructured interviews, or ‘Conversations’; self-reflexive exercises such as diaries and a remote postcard study and participant-observation exercises based on group activities in the canal-scape. Findings suggest that individuals’ landscape perceptions are constructed through experiences and memories of other landscapes, both physically known and those only imagined. Participants display congruencies and divergences regarding notions of iconic landscape components and perceptual themes which may be contrary to the established norms of canal-scape meaning. The study stresses the use and importance of individual narratives as indicators of how participants think about and use the landscape as part of their life activities, how they perceive it, how they project themselves onto it, construct meanings around it. Results indicate that the locomotive-narrative methodologies developed in response to the research parameters are highly conducive to the evocation and expression of multi-modal landscape perceptions, including references to memories and associations. Research was carried out in collaboration with British Waterways and funded by the Arts & Humanities Research Council under a Collaborative Doctoral Award.
Pedigree analysis of Burlina cattle population

The aim of this study was to characterize the pedigree of Burlina cattle breed. The file was supplied by the Breeders Association of Treviso province (Italy) and included 2303 animals. About 79% of individuals had both parents known. The additive genetic relationship (f) among animals and the coefficient of inbreeding (F) were calculated as well as the number of generations and pedigree completeness index (PCI). The PCI increased over the studied period and individuals born in 2009 had an average value of 90% considering 2 generations and 69% considering 5 generations. The additive genetic relationship increased across years, reached a value of 1.95% in 2004 and then decreased slightly. Coefficient of inbreeding was low in 1990s and increased rapidly afterwards; in 2009 the F value was 4.81%. The monitoring of f and its use as weighting factor for selecting sires and dams of future bulls will be used to control inbreeding levels within the population.