Miracle-dz/UniFAR-FTUs huggingface dataset:
COASTAL MANAGEMENT STRATEGIES TO FACE CLIMATE CHANGE AND ANTROPHOGENIC ACTIVITY: A CASE STUDY OF TAMBAN BEACH, MALANG REGENCY, EAST JAVA

This research was set against the backdrop of low levels of coastal ecosystem services at the global, regional, national, and local levels. Changes in land use in coastal areas are mainly caused by an increasing intensity of climate change and irrational land use. The aim of this research was to develop coastal management strategies to deal with intensified climate change and anthropogenic processes. The methods used included using the drone approach to perform a spatial analysis, measuring the parameters of Tamban coastal waters, and applying the Partial Least Squares (PLS) method to determine community assessments and opinions about tsunami. The results of the study indicate that Tamban Beach is highly vulnerable to tsunami hazards even though the water parameters are still on the verge of pollution and that the coastal ecosystem services are not excellent. The results of this study require that the people affected by the tsunami, especially residents on Tamban beach, need to be moved to an area that is safer from the brunt of the tsunami. The area is approximately 10 kilometers from the shoreline. Besides that, this area also needs to be designated as a marine ecotourism area, but free from the tsunami disaster.
Functional and pasting properties of yellow maize–soya bean–pumpkin composite flours and acceptability study on their breakfast cereals

Abstract The objective of this study was to determine the functional and pasting properties of yellow maize (M)-soya bean (S)-pumpkin (P) composite flours and the sensory attributes of breakfast cereals prepared from the flour formulations. Two forms of soya bean seeds; un-soaked (USB) and soaked, dehulled and boiled soya bean (SSB) were used for this study. Four blends of composite flours in the proportions 65:35:0, 60:35:5, 55:35:10 and 50:35:15 (M: USB/SSB: P) were formulated. Results of the functional properties revealed that, water absorption capacity, swelling power and solubility, were in the range of 161.06–269.46%, 400.00–480.29% and 6.80–13.43% respectively and increased pumpkin pulp flour substitution resulted in an increase in the functional properties and viscosities. Sensory evaluation showed that significant differences (p < 0.05) existed in the taste, aftertaste and overall acceptability of the breakfast cereals with panellists preferring formulations developed from un-soaked soya bean flours. There was no significant difference (p > 0.05) between the control (USB) and the 10% pumpkin-substituted breakfast cereals in terms of the overall mean values. The addition of pumpkin pulp to maize–soya bean blend significantly improved the functional and pasting properties of the flour blends and sensorial properties of breakfast cereals were acceptable by panellists.
Pelayanan Publik Berbasis Collaborative Governance Di Pelabuhan Andi Mattalata Kabupaten Barru

This study aims to describe collaborative governance-based public services at Andi Mattalata Port, Barru Regency. This type of research uses a descriptive research type in order to provide an overview of qualitative research data. This research focuses on how to describe the collaboration of stakeholders at Andi Mattalata port. This study used several methods, namely interviews, observation and documentation as techniques in data collection. The results of this study provide an explanation of the theory of Ansell and Gash in (Wibowo, 2020) put forward several stages for measuring, namely a) Face to Face; b) Trust Building; c) Commitment to Processes; d) Share Understanding; e) Intermediate Outcomes. Technical constraints occur because the initial commitment process did not go well resulting from being inconsistent with the initial face-to-face talks which hindered the continuation of cooperation between stakeholders who work together in carrying out passenger and freight services, but this can be minimized by emotional factors that occur by the parties working together so that the service can run even though it is not optimal.
Identities for minors of the Laplacian, resistance and distance matrices of graphs with arbitrary weights

ABSTRACT The resistance matrix of a simple connected graph G is denoted by or simply by R and is defined by , where is the resistance distance between the vertices i and j in G. In this paper, we consider distance matrix of a weighted tree and the resistance matrix of any weighted graph, where the weights are nonzero scalars. We obtain the identities for minors of the Laplacian, resistance and distance matrices, which are independent of the nonsingularity of resistance and distance matrices. While finding these we obtain the necessary and sufficient condition for the resistance matrix to be singular and the rank of it. Finally, we obtain the Moore–Penrose inverse of R, when it is singular.
What affects the use of green technology in hotels? Assessing hotel management viewpoint using natural language processing based qualitative study

ABSTRACT Hotels across the globe are trying to adopt green technologies for reducing the negative impact of the hospitality segment on the environment. However, the implementation of green technologies in hotels can be affected by the perspectives of managers. There is a need to assess the views of managers regarding the enablers, barriers and skill-sets that affect the adoption of green technologies in hotels. Existing studies fail to draw a proper link between the factors that affect green technology use in hotels and the website content of green hotels. Semi-structured interviews of fifteen managers and topic-modeling of the website content of forty-one Indian green hotels reveal that there is a gap in communications and awareness. The qualitative study using a grounded theory and phenomenology approach has found motivators like, cost reduction, value-for-nature, and barriers like, misperception of customers, high cost. The study highlighted the importance of green skills as a moderator. 全球的酒店都在尝试采用绿色技术来减少酒店业对环境的负面影响. 然而，酒店绿色技术的实施可能会受到管理者观点的影响. 有必要评估管理人员对影响酒店采用绿色技术的推动因素、障碍和技能的看法. 现有研究未能在影响酒店绿色技术使用的因素与绿色酒店网站内容之间建立适当的联系. 对 15 名经理的半结构化访谈和对 41 家印度绿色酒店网站内容的主题建模表明，在沟通和意识方面存在差距. 使用扎根理论和现象学方法的定性研究发现了诸如降低成本、保护自然价值等激励因素，以及诸如对客户的误解、高成本等障碍. 该研究强调了绿色技能作为主持人的重要性.
Numerical embankment breach modelling including seepage flow effects

Abstract The multi-physical processes during embankment breaching due to overtopping are complex and known to depend upon seepage flow through the embankment. A numerical breach model for progressive embankment breaching is proposed, taking the seepage flow into account including its influence on slope stability due to apparent cohesion effects. Overtopping and embankment surface erosion are computed using finite-volume methods applied to the 2D shallow-water and the Exner equations. The seepage flow is modelled using a Lattice–Boltzmann approach solving the 3D Richards’ equation. The modules are executed in a coupled manner with dynamically adapted boundary conditions. The breach side wall failures are considered using a geometrical approach based on critical failure angles. This approach is enhanced to account for apparent cohesion effects by dynamically adapting the critical failure angles as a function of the water saturation in a heuristic way, as a major enhancement compared to previous approaches. The model is successfully applied to a laboratory experiment of a small-scale spatial embankment breach.
Coupled dark energy: Parameter constraints from N-body simulations

We investigate cosmologies where dark matter (DM) is coupled to dark energy (DE), through N-body simulations. The dark-dark coupling introduces two novel effects in particle dynamics: (i) DM particle masses vary with time; (ii) gravity between DM particles is ruled by a constant ${G}^{*},$ greater than Newton's constant G, holding in other two-body interactions. Hence, DM particle dynamics violates the equivalence principle and, as a consequence, baryons and DM particle distributions develop a large scale bias. Here we focus on DE models with Ratra-Peebles (RP) potentials. The dark-dark coupling is set in a parametric range compatible with background and linear dynamics. We find that nonlinear dynamics puts additional constraints on the coupling parameter. They mostly arise from cluster density profiles that we find to yield higher concentrations in coupled RP models, with respect to (uncoupled) dynamical DE cosmologies. Such an enhancement, although being a strong effect in some coupling parameter range, leads to acceptable observables for a significant range of values of the coupling parameter. We also analyze the expected cluster mass function and the DM-baryon bias in nonlinear conditions, finding them compatible with data. With the above restrictions, coupled DE models with a RP potential are therefore consistent with cosmological nonlinear observables. As a general conclusion, we confirm that cosmologies with a suitable dark-dark coupling are viable theories.
Teachers in the Private and Public Spheres: Ethical Orientations in Educational Interactions

Aim. The main aim of the article is a presentation of a comparative study of differences in ethical orientations used by teachers in educational practice in two settings: in private life as parents and in the public sphere, working as teachers. Methods. First, a hypothesis was proposed to test the observations by Lawrence Kohlberg (1984) and Carol Gilligan (1993) regarding the relative stability of ethical orientations in terms of the ethics of care and justice. To this end, an assumption was made that teachers prefer the former in contacts with their own children (private sphere) while favouring the latter in relationships with students (public sphere). The paired samples t-test confirmed this hypothesis. Results. Based on the analysis, gender was found not to influence teachers’ ethical orientations in the private sphere; however, it seems to play a part in the public sphere. This ambivalence was revealed in male teachers. Contrary to gender stereotype, in contacts with their own children, they tend to lean towards the ”feminine” ethics of care, but when acting in their public capacity they perpetuate the ‘masculine’ stereotype by following the ethics of justice in their school interactions. Conclusion. It is worth emphasising the ambiguity of the results obtained and the instability of their interpretations. The actions of the teachers studied do not confirm the thesis about the stability of ethical orientations in educational work and are, therefore, indicative of ambivalence towards the role of gender in this process.
The Effect of SISKEUDES Implementation, Village Apparatus Training, and Internal Control System on The Quality of Village Financial Reports

This study aims to determine the effect of SISKEUDES implementation, village apparatus training, and internal control system on the quality of village financial reports in Simeulue Regency, Aceh Province. The population included 138 villages in Simeulue Regency with a census sample of 138 villages. The respondents comprised three people in each village, with a total of 414 respondents. This study performed multiple linear regression using the SPSS (Statistical Package For Social Science) program for data analysis. The results showed that the implementation of SISKEUDES, technical training, and internal control systems show a positive and significant effect on the quality of village financial reports in Simeulue Regency. The implementation of SISKEUDES has positive effects on the quality of village financial reports in Simeulue Regency. The technical training and the internal control system also showed positive effects on the quality of village financial reports in Simeulue Regency. The implication of the finding is expected to be the basis for policymakers to implement SISKEUDES, technical training for village officials, and the implementation of an internal control system. This also becomes a practical guideline for villages to manage their finances.
On Simple Back-Off in Complicated Radio Networks

In this paper, we study local and global broadcast in the dual graph model, which describes communication in a radio network with both reliable and unreliable links. Existing work proved that efficient solutions to these problems are impossible in the dual graph model under standard assumptions. In real networks, however, simple back-off strategies tend to perform well for solving these basic communication tasks. We address this apparent paradox by introducing a new set of constraints to the dual graph model that better generalize the slow/fast fading behavior common in real networks. We prove that in the context of these new constraints, simple back-off strategies now provide efficient solutions to local and global broadcast in the dual graph model. We also precisely characterize how this efficiency degrades as the new constraints are reduced down to non-existent, and prove new lower bounds that establish this degradation as near optimal for a large class of natural algorithms. We conclude with a preliminary investigation of the performance of these strategies when we include additional generality to the model. These results provide theoretical foundations for the practical observation that simple back-off algorithms tend to work well even amid the complicated link dynamics of real radio networks.
A Latin Hypercube Sampling Utility: with an application to an Integrated Assessment Model

This paper describes the use of a utility that creates a Latin Hypercube Sample (LHS). The LHS approach to sampling has had wide applicability as it represents a Monte Carlo strategy that limits sample size and therefore computer time to study the outcomes of simulations under uncertainty. Other approaches to deal with the ’size’ problem include Gaussian Quadrature (GQ) (Arndt, 1996), often used in the context of large models such as computable general equilibrium models. However, the GQ approach is most suitable for focusing on a small set of uncertain parameters as the number of model evaluations increases substantially with the number of uncertain parameters and/or the moments to track. The utility is a new version of the LHS utility that has been publicly available from Sandia National Labs since the early 2000s. Beyond the recoding from FORTRAN to C/C++, the new version of the utility has some additional features including new output options and additional statistical distributions. This paper demonstrates the use of the new utility by coupling it to an integrated assessment (IAM) model which is derived from the META 21 model developed by Dietz et al. (2021). The META 21 model has many components that can be readily integrated into global economic models that track greenhouse gas emissions—a simple climate module, economic impacts derived from sea-level and temperature rises and bio-physical tipping points such as the Amazon dieback. The IAM results suggest that the social cost of carbon increases by an average of around 26% when taking into account the tipping points and that the tipping points lead to an additional decline of 0-5% in per capita consumption in 2100 on top of the other damages related to climate change. The utility and the code to the IAM model are available as supplementary materials.
Signatures of a 4pi periodic Andreev bound state in topological Josephson junctions

Three dimensional topological insulators (3D TI) are a new state of matter composed of an electrically insulating bulk covered by metallic surface states. Theoretically, a topo- logical Josephson junction composed of these surface states can host an Andreev Bound state (ABS) that has twice the periodicity of the conventional 2π periodic ABSs. The 4π periodic ABS is expected to be the building block of topological quantum computing. Therefore, we study the dynamic of this particular ABS by performing Shapiro measure- ment on Josephson junctions built with bismuth based 3D TI. To identify the eﬀects of a 4π periodic ABS in a Shapiro measurement, we use a phe- nomenological model that simulates the voltage-current characteristics of a TJJ. We predict two signatures of the 4π periodic ABS and estimate their robustness against Joule heating and thermally activated quasiparticle poisoning of the 4π periodic mode. We study the Josephson junctions dynamics by performing Shapiro measurements on junctions built on Bi2Se3. We observe the two previously anticipated signatures, which are the non-conventional appearance order of the Shapiro steps and the remaining of a supercurrent at the closing of the Shapiro step n = 0. They prove the presence of a 4π periodic ABS. We also study the topological insulator BiSbTeSe2 that we have grown by using the melting growth method. By superconducting interferometric measurements, we show a superconducting surface transport without bulk electronic conduction.
Comparison Analysis of Semiconductor Characterisation topologies using Energy Recirculation Concept

Energy recirculation concept in semiconductor device characterization can increase power handling capacity of the source and it will reduce naturally existing high electrical stresses on device under test. The proposed energy recirculation and storage circuits (ERSC) can be employed as a device in-situ testing unit, by storing and recirculating the energy of the storage elements. ERSC enables devices to be checked at full-power pressures without being attached to a high-power load or requiring high power source. ERSC has four active states of operations achieved by the two active switches of the proposed converter. This converter can function in four different modes of operation, namely - soft start, magnetize, charge, and energy recirculation modes. Another advantage of this converter is that the two circuits can be constructed to work synchronously or asynchronously, allowing for the testing of faster or slower devices depending on the performance of the device being tested. In this paper double pulse test, single ended buck boost and cascaded boost -buck ERSC converters are simulated using MATLAB/SIMULINK and based on the results cascaded boost-buck ERSC having better performance compared to existing testing methods.
Numerical investigation of free-stream turbulence effects on the transition-in-wake state of flow past a circular cylinder

ABSTRACT We investigate how a turbulent free-stream (TFS) affects the transition-in-wake state of flow past a cylinder. Direct numerical simulations of a decaying TFS flow past a cylinder have been performed, where the intensity and integral scale of the TFS was varied. Distinct effects of the TFS are observed for Reynolds numbers in the lower (Re < 190) and upper (Re ≥ 250) ranges of the transitional regime. For a flow with a laminar free-stream (LFS), the onset of the transition-in-wake is observed at critical Reynolds number 190, where the first three-dimensional effects develop in the wake (mode A instabilities). A TFS perturbs the flow, forcing the onset of the transition at a lower Reynolds number and inhibiting a sharply defined critical Reynolds number. Quasi-stable states, where the wake alternates between two- and three-dimensional vortex shedding, are observed for Re < 190. These states are closely related to intermittent vortex dislocations in the wake. In the upper Re part of the transition-in-wake regime, mode B instabilities dominate the wake of the LFS flow. A TFS stimulates the existence of mode A instabilities, resulting in mixed A–B instabilities in the wake for Re ≥ 250. This effect correlates with the turbulence intensity.
Effect of Mentoring on the Growth of Selected Small Scale Businesses in Makurdi Metropolis, Benue State-Nigeria

Strategies for developing the capabilities of employees are important part of any organization’s overall strategy and source of competitive advantage. This study investigated the effect of mentoring on the growth of selected small scale businesses in Makurdi Metropolis, Benue State. The study specifically examined the effect of career support, psychological support and knowledge transfer on the growth of selected small scale businesses in Makurdi Metropolis. The study adopted a cross-sectional survey design and the population of the study was 152 (owners and employees) of small scale businesses within Makurdi Metropolis. A pilot study was carried out to measure validity and reliability of items on the questionnaire. Data collected from respondents through self-administered questionnaire were analysed using Mean, Standard Deviation and Regression Analysis. Formulated hypotheses were tested with the aid of the Statistical Package for Social Sciences (SPSS 23) software. The study found that career support has significant effect on the growth of small scale businesses (P.019; β=.349); psychological support has significant effect on the growth of small scale businesses (P.000; β=.734) and knowledge transfer has significant effect on the growth of small scale businesses (P.000; β=.516). It recommended amongst others that government should organize mentorship programmes for entrepreneurs and business men to enable them have knowledge about business mentoring and the importance of transferring knowledge to enhance viability and growth of their businesses.
Experimental and Theoretical Evaluation for Pressure Effects on Spin Hall Effect in Pt

We have experimentally and theoretically investigated the influence of pressure on the spin Hall effect (SHE) for the Pt. The experimental results using a laterally configured Pt/CoFeB hybrid nanostructure suggest that the spin Hall angle for the Pt is almost constant under pressure up to 2 GPa. The theoretical study based on the first-principles calculation found the spin Hall conductivity for the Pt shows a 10% reduction due to the pressure application of 75 GPa, supporting the experimental results. These results imply that the enhanced spin Hall signal in the dynamical spin injection due to the pressure application is caused by the enhancement of the interfacial spin mixing conductance.
Predictive cruise control of connected and autonomous vehicles via reinforcement learning

Predictive cruise control concerns designing controllers for autonomous vehicles using the broadcasted information from the traffic lights such that the idle time around the intersection can be reduced. This study proposes a novel adaptive optimal control approach based on reinforcement learning to solve the predictive cruise control problem of a platoon of connected and autonomous vehicles. First, the reference velocity is determined for each autonomous vehicle in the platoon. Second, a data-driven adaptive optimal control algorithm is developed to estimate the gains of the desired distributed optimal controllers without the exact knowledge of system dynamics. The obtained controller is able to regulate the headway, velocity, and acceleration of each vehicle in a suboptimal sense. The goal of trip time reduction is achieved without compromising vehicle safety and passenger comfort. Numerical simulations are presented to validate the efficacy of the proposed methodology.