Miracle-dz/UniFAR-FTUs huggingface dataset:
Raman spectroscopy of silicon nanowires formed by metal-assisted chemical etching

Silicon nanowires obtained by metal-assisted chemical etching of crystalline silicon (Si) wafers are studied by Raman spectroscopy to reveal the effect of the formation time of nanowires and their additional doping with boron and phosphorus. The observed modification of the spectrum shape in the boron-doped samples due to the Fano effect made it possible to estimate the concentration of free holes in Si nanowires, which is of the order of 1019 - 1020 cm3, depending on the preparation conditions. The obtained results indicate the potential of the Raman spectroscopy for contactless diagnostics of Si nanostructures.
Numerical analysis of the influence of number of blades on the power performance of vertical axis wind turbines

The current study systematically analyzes the impact of number of blades (n) on the aerodynamic performance of 2-, 3- and 4-bladed Darrieus H-type vertical axis wind turbines (VAWTs). A large number of operational parameters, i.e., tip speed ratio (λ), Reynolds number (Re), turbulence inten-sity and reduced frequency (K) are investigated to provide a deeper insight into the impact of n on the dynamic loads on the blades, the turbine performance and the wake. High-fidelity unsteady Reynolds-averaged Navier-Stokes (URANS) simulations, extensively validated with experiments, are employed. The results show that (i) within the turbine optimal operational range, the turbine power coefficient (CP) is almost independent of n; (ii) when dynamic stall is present, CP values are dependent on n due to the impact of K; and (iii) decreasing n leads to an increase in the maximum lift coefficient, while the drag coefficient of the blade(s) reduces due to the higher K. The present findings support the optimal aerodynamic design of small- to large-scale VAWTs.
Study of dental caries conditions and the correlative factors in CHD children

Objective To evaluate the prevalence of dental caries in children with congenital heart disease(CHD) and to analyze the correlative risk factors.Methods One hundred CHD children aged 2～15 years old were examined and completed a questionnaire survey.The variances of caries and calculus risk factors were analyzed.Results The caries prevalence was 57.6% and 54.2% in primary dentition and mixed dentition of CHD,respectively.The dmft of 5 years old CHD children group was 3.94,and the dmft of non-cyanotic children was greater than cyanotic children(P=0.014). Conclusion Compared with the result of the third national oral health survey,the caries prevalence and mean dmft/DMFT were increased.The children with less consumption of cariogenic foods have low caries prevalence,and the children with high education level parents have fewer caries.
Capturing emotions in voice: A comparative analysis of methodologies in psychology and digital signal processing

People use their voices to communicate not only verbally but also emotionally. This article presents theories and methodologies that concern emotional vocalizations at the intersection of psychology and digital signal processing. Specifically, it demonstrates the encoding (production) and decoding (recognition) of emotional sounds, including the review and comparison of strategies in database design, parameterization, and classification. Whereas psychology predominantly focuses on the subjective recognition of emotional vocalizations, digital signal processing relies on automated and thus more objective vocal affect measures. The article aims to compare these two approaches and suggest methods of combining them to achieve a more complex insight into the vocal communication of emotions.
White Paper: Interventionelle MRT: Status Quo und Entwicklungspotenzial unter ökonomischen Perspektiven, Teil 2: Therapeutische und onkologische Anwendungen White Paper: Interventional MRI: Current Status and Potential for Development Considering Economic Perspectives, Part 2: Liver and Other Appli

Background MRI is attractive for guiding and monitoring interventional procedures due to its high intrinsic soft tissue contrast and the possibility to measure flow and cardiac function. Methods Technical solutions have been developed for all procedural steps including imaging guidance, MR-safe catheters and instruments and patient monitoring. This has led to widening of the clinical applications. Interventional MRI is becoming increasingly important for the treatment of patients suffering from malignant diseases. The detectability of masses and consequently their accessibility for biopsy is higher, compared to other modalities, due to the high intrinsic soft tissue contrast of MRI. Temperature-dependent sequences allow for minimally invasive and tissue-sparing ablation (A-0 ablation). Conclusion Interventional MRI has become established in the clinical routine for a variety of indications, including biopsies and tumor ablation. Since the economic requirement of covering costs by reimbursement is met and interventional MRI decreases the mortality and morbidity of interventional procedures, broader application of interventional MRI can be expected in the clinical routine in the future.
The Relationship Between Black Coffee Consumption and Weight Status

Learning Outcome: To understand the relationship between the amount of black coffee consumed and Body Mass Index (BMI) in individuals 18 years and older. Background: Researchers have debated the relationship between weight status and coffee consumption with conflicting results. Lee, Kim, & Kim (2017) found a positive trend exists between the amount of coffee consumed and BMI. Conversely, Grosso et al. (2015) found an inverse trend between coffee consumption and BMI. Methods: Quantitative design was used. A researcher constructed questionnaire was piloted through SNAP Survey at a small Midwestern university receiving 939 complete responses. Three questions were included on the pilot study questionnaire soliciting feedback regarding question wording, ordering, and comprehension. The questionnaire was revised for validity and clarity. The revised questionnaire for the main study was administered through Amazon Mechanical Turk. Fifty-seven complete questionnaires were received. Eighty-four participants from the pilot study who reported only black coffee consumption were included in the main study data analysis. The two samples were combined to increase statistical power (n=141). BMI (kg/m2) was calculated for each participant. Results: An ANCOVA was performed to examine the relationship between BMI and black coffee consumption (oz.) per day (scale was 4oz. to 40 oz.). The results showed no correlation between the two variables, F(1, 138)= 0.65, p < 0.001. Unlike the previous studies, this quantitative study controlled for additives (such as cream, sugar, and milk)
Genetic x environment interaction on agronomic characters and yield components of sweet sorghum (Sorghum bicolor) mutant strain

Lestari EG, Dewi IS, Nur A, Yunita R, Mastur. 2019. Genetic x environment interaction on agronomic characters and yield components of sweet sorghum (Sorghum bicolor) mutant strain. Biodiversitas 20: 3705-3714. Sweet sorghum (Sorghum bicolor (L.) Moench) belongs to cereal plants that have prospects for commercial development in Indonesia, since it can adapt widely in sub-optimal land, and has many functions. However, there is still limited sweet sorghum variety that has been released in Indonesia. The study aimed to evaluate the influence of genetic x environment interaction on agronomic characters and yield components of sweet sorghum mutant strain. Adaptation test was held in 8 locations in Indonesia, namely Pekalongan, Bantul, Gunung Kidul, Lampung, Malang, East Lombok, Bontobili and Maros, from May to November 2017. The material tested was 10 M7 mutant strains and two check varieties (Numbu and Super 1). The experiment was arranged in a randomized complete block design (RCBD). There were three replications in form of blocks and each block consisted of 40 sorghum plants. The result showed that genetic x environment interaction affected the agronomic characters and yield components of sweet sorghum. Several characters such as plant height, panicle diameter, seed production, sugar brix and stem juice volume of sweet sorghum mutants were greater than check varieties. The highest seed yield was found in MB-1 strain of sweet sorghum mutant that cultivated in Pekalongan site.
BALANCE CONTROL OF SEGWAY ROBOTS USING ADAPTIVE-ROBUST CONTROLLER

Due to its compatibility and functionality, segways have been widely used in many countries. It was first introduced in December 2001.Yet, segway robots are faced with problems such as friction and external disturbances. Therefore, some controllers are designed to overcome with these problems. In previous studies, traditional controllers are used to balance a two-wheeled segway robot. The aim of this study is to minimize the trajectory tracking error. Due to external disturbances, such as wind, force and torque, robot parameters cannot be calculated exactly. Hence, the parameters of the robot are assumed to be unknown. In such situations, adaptive and robust controllers give better results. Adaptive and robust control laws were examined and adaptive-robust system was designed for the segway robot. Then Lyapunov function was defined and this adaptive-robust controller was derived from the Lyapunov function. And this control system applied to a two-wheeled segway robot model.
Comparison of Direct and Indirect Mini-implant Anchorage in Adults with Maxillary Protrusion: A Randomized Controlled Trial

The purpose of this randomized controlled trial was to investigate the effects of direct and indirect mini-implant anchorage on tooth movement, skeletal and soft-tissue changes following sliding en masse retraction in adult patients with maxillary protrusion. A total of 30 patients (6 male, 24 female, mean age 23.5±6.29 years) were randomly assigned to group A with direct mini-implant anchorage or group B with indirect mini-implant anchorage. Lateral cephalograms taken before and after retraction were used to evaluate the changes during space closure. Independent sample t tests were performed to compare the baseline cephalometric data and treatment changes between the two groups. Paired sample t tests were performed to examine the changes within each group. The Results showed that no significant difference in anteroposterior skeletal changes was found between the two groups. The occlusal plane rotated clockwise 4.11° (p<0.001) in group A and remained stable in group B. Regarding dental changes, the maxillary molars mesialized by 0.83 mm in group B and showed non-significantly anteroposterior movement in group A. In group A the molars showed significant distal inclination (6.97°, p<0.001) and intrusion (2.74 mm, p<0.001) compared with group B (p<0.001). There was no significant difference in the anteroposterior or vertical movement of the incisors between the two groups. The soft-tissue parameters were significantly improved in both groups (p<0.001) while no differences were found between the groups. In conclusions, both directly and indirectly loaded mini-implants can provide successful anchorage. Indirect mini-implant anchorage enabled better sliding mechanics compared to direct anchorage.
Phanerozoic cooling history of Archean/Paleoproterozoic basement in the southern Espinhaço Range, southeastern Brazil, through apatite fission-track analysis

Apatite fission track thermochronology of basement rocks from the southern Espinhaço Range and Quadrilátero Ferrífero in southeastern Brazil unravels the tectonic history of this portion of the Brazilian Shield. The study area encompasses an Archean and Paleoproterozoic granitoid-gneiss basement, in the southern border of the São Francisco Craton, and an Archean to Paleo-Mesoproterozoic sedimentary cover. Apatite fission track ages (AFT) vary from 187 ± 18 to 91.8 ± 7.3Ma and horizontal confined track lengths vary from 9.62 ± 1.81 μm to 12.85 ± 1.35 μm. Thermal history modeling shows an accelerated cooling episode starting in the Upper Devonian to Early Permian. After this event, quiescence lasted from 115 to 170Ma. Apatite samples lack evidence of far-field effects from rifting and opening of the South Atlantic Ocean, and also evidence from alkaline and basaltic magmatism emplacement during Mesozoic-Cenozoic. The AFT thermochronometer remained undisturbed during Transminas mafic dyke swarm intrusion. Finally, the last cooling event in the Espinhaço RangeQuadrilátero Ferrífero basement records ascension to surface temperatures due to epeirogeny after new configurations of the Nazca, South American and African plates. A climatic origin for the ascension is supported by accentuated erosion rates, even though a weathering-prone phase is registered in weathering profiles.
C2C Return Logistics: a large Markov Decision Process analysis of an innovative concept

In this research, the innovative C2C Return Logistics (C2C) concept, in which returns are directly sent to other customers, is modelled and tested on various scenarios. The C2C concept shows promising results to serve as a solution to the return problem online retailers face, albeit dependent on product characteristics. The simulation model presented in this research can be applied to any online retailer for testing the effect of implementation of C2C. With the C2C concept modelled as a large, complex Markov Decision Process (MDP), two solution techniques from the field of Operations Research and Reinforcement Learning, being respectively Approximate Dynamic Programming (ADP) and Monte Carlo Tree Search (MCTS), are implemented and compared to each other in this research. It therefore contributes as reference work for large MDPs, by both testing the so-called `model-free' approach (MCTS), as well as the `structured-based' approach (ADP), from both fields on the same use case. Especially ADP shows promising results compared to the MCTS method, both in terms of performance and in terms of running times. If an MDP has a certain problem structure which makes any generalization of state space possible, ADP can serve as a powerful tool. The MCTS method, however, although applicable to any kind of MDP which consists of a simulator replicating state transitions, showed moderate performance in reasonable amount of running time. The performance improved, however, when the size of the state space of the problem decreased.
Sustainability Analysis of KPBS Pangalengan Milk Processing Business Unit Using Flourishing Business Canvas Method

Koperasi Peternakan Bandung Selatan (KPBS) as one of the milk cooperatives established Milk Treatment 2 (MT2) as a milk processing business unit to increase the bargaining position of distribution and marketing of milk. The purpose of the research conducted is to analysing the sustainability aspects of MT2 on Flourishing Business Canvas (FBC). The sustainability description of MT2 on FBC makes MT2 able to map sustainability problems that occur in the company. Data and information collection techniques in this study are observation, interviews, and literature study. The study found that Value co-creation conducted by MT2 is the production of high quality and affordable milk-derived dairy products, as well as economic welfare for KPBS members. Other funding showed that the value of co-destruction is due to lack of knowledge, and the weakness of MT2 in markets and capital.Keywords: milk, KPBS Pangalengan, sustainable analysis, sustainable business model, flourishing business canvas
The 1918 Influenza Pandemic and the Fetal Origins Hypothesis : Evidence from Linked Data Preliminary Draft June 16 , 2017

Almond (2006) argues that in-utero exposure to the 1918 influenza pandemic lowered socioeconomic status in adulthood, whereas Brown and Duncan (2016) find that the effect disappears after controlling for parental characteristics of the 1919 birth cohort. We link microdata from the 1920 Census to WWII enlistment records and city-level influenza data. The result is a dataset with much more precisely measured influenza exposure and parental characteristics. We find results consistent with the Fetal Origins Hypothesis. In the absence of the pandemic, the 1919 birth cohort would have been more likely to graduate from high school and would have obtained more years of schooling. We find no evidence that in-utero exposure to influenza affected heights or weights. JEL codes: I10; J13, N32
Index Futures Trading and Spot Market Liquidity: Evidence from the Recent Chinese Stock Market Crisis

Using a difference-in-difference approach, we find that restrictions placed on index futures trading during the recent Chinese stock market crisis deteriorated spot market liquidity. This is more so for the CSI 300 index component stocks and for the September trade restrictions announcement. Robustness checks further confirm our main results. Our findings are consistent with the contention of Banerjee and Graveline (2014) that during a market crash instituting bans or position limits on derivatives trading may increase the underlying assets scarcity.
In Situ Synthesis and Characterization of ZnO/Chitosan Nanocomposite as an Adsorbent for Removal of Congo Red from Aqueous Solution

ZnO/chitosan nanocomposite was successfully synthesized by in-situ precipitation method. The material was characterized by XRD, FESEM, TEM, FTIR, BET, and TGA. Results show that ZnO/chitosan nanocomposite has spherical shape with the average size of 20–25 nm. BET surface area and the average pore size of ZnO/chitosan nanocomposite are 2.2436 (m2/g) and 12.2 nm, respectively. The material was applied as an adsorbent for congo red removal from aqueous solutions. The congo red adsorption is better described by the Langmuir model (R2=0.996) than by the Freundlich model (R2=0.962). Therefore, it can be presumed that congo red was adsorbed in a single monolayer with the theoretical maximum adsorption capacity of 227.3 (mg/g). This is comparable to other available adsorbents. It can be suggested that ZnO/chitosan nanocomposite could serve as promising adsorbent for congo red in wastewater treatment technology.
Core competency deficits in failed startup teams

1. Edit Szathmári (Corresponding author) ORCID: https://orcid.org/0000-0002-8816-2869 Affiliations: Doctoral School of Psychology, ELTE Eötvös Loránd University; Institute of Psychology, ELTE Eötvös Loránd University E-mail address: szathmari.edit@ppk.elte. hu 2. Zoltán Varga Affiliation: Independent researcher 3. Attila Molnár Affiliation: TeamINSIGHT Labs Ltd. 4. Gergely Németh Affiliations: Budapest Metropolitan University; Corporate Values Kft. 5. Orhidea Kiss Affiliation: Institute of Psychology, ELTE Eötvös Loránd University Abstract
Total Quality Management and the Role of Management Accountants on Organisational Performance: The Service Sector in Malaysia

Manuscript type: Research paper Research aims: This study examines the relationship between total quality management (TQM), the role of the management accountant and organisational performance among the service sector in Malaysia. Design/Methodology/Approach: This study collects data from 100 private service organisations in Malaysia via a self-administered printed questionnaire. Data collected are analysed using partial least squares (PLS) 3.0. Research findings: The results reveal that TQM has a positive significant impact on organisational performance. The TQM’s practice of focussing more on customers and the designing of services also show significant effects on organisational performance. This study finds that management accountants do not moderate the relationship between TQM and organisational performance. Theoretical contribution/Originality: This study expands the previous literature by examining the role of the management accountant as a moderator between TQM and organisational performance. Practitioner/Policy implications: The results derived from this study can be used to facilitate the application of TQM in service organisations so as to enhance their organisational performance. The findings can also assist managers in the service organisations to determine the functions of their management accountants because this can impact on the successful adoption of TQM. Research limitation/Implications: The limitations of this study includes its scope which is confined to only the service industry. Future research should expand further to cover other industries. Keywords: TQM, Organisational Performance, Role of the Management Accountant, Service JEL Classification: M41
Nonlinear analysis of radially functionally graded hyperelastic cylindrical shells with axially-varying thickness and non-uniform pressure loads based on perturbation theory

In this study, nonlinear analysis for thick cylindrical pressure vessels with arbitrary variable thickness made of hyperelastic functionally graded material properties in nearly incompressible state and clamped boundary conditions under non-uniform pressure loading is presented. Thickness and pressure of the shell are considered in axial direction by arbitrary nonlinear profiles. The FG material properties of nearly incompressible hyperelastic shell are graded in the radial direction with a power law distribution. Effective combination of shear deformation theory and match asymptotic expansion of perturbation theory are used to derived and solve the nonlinear governing equations, respectively. A numerical modelling based on finite element method is presented to validate the results of the current analytical solution. The effect of material constants, non-homogeneity index, geometry and pressure profiles on displacements, stresses and hydrostatic pressure distributions are illustrated for different hyperelastic material properties and case studies. This approach enables insight to the nature of the deformation and stress distribution through the thickness of rubber vessels and may offer the potential to study the mechanical functionality of blood vessels such as artificial or natural arteries in physiological pressure range.
The shelf life of coarse beef sausage using Dawadawa (Parkia biglobosa) pulp powder as an extender

The shelf life and sensory characteristics of coarse beef sausage with dawadawa ( Parkia biglobosa ) pulp powder (DPP) as an extender was investigated. The sausages were formulated in four treatments with one serving as a control and the dawadawa pulp powder was added to the other three at various inclusion levels of 35g, 40g and 45g in T2, T3 and T4 respectively. The beef sausages were spiced and stuffed in natural casings and stored at a temperature of 4°C for 14 days. Weekly sensory characteristics of the products were evaluated for texture, taste, color, flavor, cohesiveness, juiciness and overall liking over a period of two weeks after storage. There were significant differences (P 0.05). Microbial load analysis of the beef sausage was carried out weekly for the 14 days of storage. The highest microbial load count was obtained in T3 on day 7 with 5.18×10 6 cfu/g and the lowest count in T2 on day 14 with 1.63×10 5 cfu/g even though the difference was not significant. The dawadawa pulp powder did not reduce the microbial load of the beef sausage and hence the shelf life of the products was not extended.