Miracle-dz/UniFAR-FTUs huggingface dataset:
Ab-initio simulations of Rb2CuMCl6 (M = Sb, Bi) for photovoltaics and thermoelectric device applications

Due to their extraordinarily flexible optoelectronic properties, the research on non-toxic double-perovskite halides has recently become very attractive. We use density functional theory to analyze the optical, electronic, and thermoelectric characteristics of copper-based double-perovskite halides, Rb2CuMCl6 (M = Sb, Bi). The band structures obtained with the Tran-Blaha altered Becke-Johnson potential demonstrate that altering the cations from Sb to Bi results in bandgap adjustments from infrared to visible (i.e. 1.0–1.2 eV) energy. Because of replacing Sb with Bi, the optical absorption exhibits utmost absorption within the ultraviolet region, whereas the absorption edge is shifted from infrared to the visible light region. Furthermore, the transport parameters are compatible with other estimated thermoelectric parameters. The fact that Rb2CuSbCl6 has a higher Seebeck coefficient indicates that a narrower band gap is appropriate for thermoelectric applications compared with Rb2CuBiCl6. In general, the Rb2CuMCl6 (M = Sb, Bi) is suitable for Sun-absorption devices and energy conversion, according to this computational thermoelectric and optical study.
Photovoltaic hosting capacity improvement based on the economic comparison between curtailment and network upgrade

The upcoming network investment decisions and regulatory framework adopted by distribution system operators (DSOs) are most likely to be impacted by the integration of ﬂuctuating distributed generation. The economical hosting capacity (HC) improvement method is investigated in this paper as a trade-off between curtailment and upgrade using a Monte Carlo simulation procedure. The associated costs of both methods are vital indicators for network operators that are trying to maximize the HC and minimize cost. In addition, the breakeven point where curtailment and upgrade costs intersect is the decisive point at which network upgrade becomes sensible as marginal curtailment cost exceeds upgrade cost. A shift in global climate conditions can impact the photovoltaic (PV) levels that motivate network operators to investigate PV penetration, especially in colder climate regions. Thus, the primary objective of this paper is to investigate the shift of the breakeven point to guide DSOs to either adopt PV curtailment as a temporary measure or grid upgrade as a risk aversion strategy considering Finnish climate and load patterns. The real-time load and PV generation data are utilized for the simulations to consider the dynamic performance indication of three Finnish distribution networks. Curtailment remains a low-cost option to obtain a percentage HC rise of 13%, 7%, and 8% for rural, suburban, and urban regions, respectively, beyond which curtailment compensation cost surpasses upgrade cost. In essence, PV curtailment serves as an immediate and least-cost solution to relieve network violations and defer network investment until the HC level (118%, 106%, 97%) making the upgrade a practical option afterwards.
Research on High Precision Positioning Method for Pedestrians in Indoor Complex Environments Based on UWB/IMU

Location information is the core data in IoT applications, which is the essential foundation for scene interpretation and interconnection of everything, and thus high-precision positioning is becoming an immediate need. However, the non-line-of-sight (NLOS) effect of indoor complex environment on UWB signal occlusion has been a major factor limiting the improvement in ultra-wideband (UWB) positioning accuracy, and the optimization of NLOS error has not yet been studied in a targeted manner. To this end, this paper deeply analyzes indoor scenes, divides NLOS into two forms of spatial occlusion and human occlusion, and proposes a particle filtering algorithm based on LOS/NLOS mapping and NLOS error optimization. This algorithm is targeted to optimize the influence of two different forms of NLOS, using spatial a priori information to accurately judge the LOS/NLOS situation of the anchor, optimizing the NLOS anchor ranging using IMU to project the virtual position, judging whether the LOS anchor is affected by human occlusion, and correcting the affected LOS anchor using the established human occlusion error model. Through experimental verification, the algorithm can effectively suppress two different NLOS errors of spatial structure and human occlusion and can achieve continuous and reliable high-precision positioning and tracking in complex indoor environments.
Prevention of Cardiovascular Disease in the Community Through Walking Intervention: Scoping Review

Background: Cardiovascular disease is the number one killer in the world. The SDGs target reducing mortality through cost-effective prevention efforts. Physical activity, including walking, has been proven to prevent cardiovascular disease. Walking is an activity that is cheap, easy, simple, and does not need tools and skills, so it can be done in general by the community. However, the modern world makes people's walking activities low. There is a need to find evidence of walking interventions that can increase walking and prevent cardiovascular disease. Purpose: This scoping review aims to identify literature focusing on walking interventions that increase footsteps and reduce disease risk to prevent cardiovascular disease. Methods: Following the guidelines for the JBI scoping review methodology. Articles conducted searches on the Ebscho CINAHL, Academic, PubMed, and ProQuest databases from 2013 to 2021. The collected data were extracted in tabular and narrative form. Results: Thirteen articles met the criteria involving 2,910 people from eight countries. Eleven studies used a randomized controlled trial, and two used a quasi-experimental design. Conclusion: Walking interventions that support increased footsteps include: distance, duration per week (< 150 minutes or > 150 minutes), supervision, activities accompanied by socio-cultural activities, counselling, and motivation, in addition to the use of tools such as pedometers, accelerators, and smartwatch is used as a footstep monitor. Intervention in walking is beneficial in reducing cardiovascular diseases risk indicators such as blood pressure, BMI, blood glucose, cholesterol, and triglycerides.
Extract of Isatidis Radix Inhibits Lipid Accumulation in In Vitro and In Vivo by Regulating Oxidative Stress

Isatidis Radix (IR), the root of Isatis tinctoria L. belonging to Brassicaceae, has been traditionally used as a fever reducer. Although some pharmacological effects, such as anti-diabetes, anti-virus, and anti-inflammatory, have been reported, there is no study on the anti-obesity effect of IR. This study used 3T3-L1 cells, human mesenchymal adipose stem cells (hAMSCs), and a high-fat diet (HFD)-induced obese mouse model to confirm the anti-adipogenic effect of IR. Intracellular lipid accumulation in 3T3-L1 cells and hAMSCs was decreased by IR treatment.IR extract especially suppressed reactive oxygen species (ROS) production through a cluster of differentiation 36 (CD36)-AMP-activated protein kinase (AMPK) pathway. Consequently, the expressions of peroxisome proliferator-activated receptor gamma (PPARγ), CCAAT-enhancer-binding proteins alpha (C/EBPα), and fatty acid synthesis (FAS) were inhibited by IR extract. In addition, β-oxidation-related genes were also decreased by treatment of IR extract. IR inhibited weight gain through this cascade in the HFD-induced obese mouse model. IR significantly suppressed lipid accumulation in epididymal white adipose tissue (eWAT). Furthermore, the administration of IR extract decreased serum free fatty acid (FFA), total cholesterol (TC), and LDL cholesterol, suggesting that it could be a potential drug for obesity by inhibiting lipid accumulation.
Visual measurement system for roadheaders pose detection in mines

Abstract. To satisfy the demand for automatic roadway drivage in mines, a real-time body pose detection system is proposed for the mine-used boom-type roadheader. Utilizing cross lasers and laser targets as information sources, this system first establishes a mathematical model to describe the machine position in space and realizes the precise localization of reference points on targets via the improved Retinex adaptive image enhancement algorithm and maximum wavelet transform module algorithm. It then sets up the machine body position calculating model and makes use of the space matrix transformation method to obtain the yaw, pitch, roll angles, and horizontal and vertical deviations of the roadheader, finally fulfilling the automatic machine pose detection in real time. Based on the preceding theoretical analysis, an experimental platform is built up in laboratory conditions for the purpose of simulating pose changes of the machine inside the tunnel and automatically detecting its position. The experimental results show that the measurement accuracy of angles is within 0.16 deg and the detection precision of displacements is higher than 10 mm, which can satisfy requirements of automatic, precise, and real-time positioning for the roadheader during the process of tunnel construction.
The Relationship between Intestinal Microflora and Coronary Heart Disease and the Research Status of Traditional Chinese Medicine Intervention

: Coronary heart disease (CHD) is a disease such as angina pectoris caused by lumen stenosis caused by coronary atherosclerosis. It is one of the cardiovascular diseases with high morbidity and mortality. The pathogenesis of the disease is very complex, and there are many inducing factors. Modern studies have shown that intestinal flora is a new target for the prevention and treatment of CHD. Inflammation caused by intestinal flora imbalance and its metabolites such as short-chain fatty acids (SCFAs), bile acids (BAs) and trimethylamine oxide (TMAO) can directly or indirectly affect the development of CHD. In recent years, Chinese medicine intervention on intestinal flora in the prevention and treatment of CHD has been a hot topic. Modern doctors have made many achievements in the use of traditional Chinese medicine to intervene intestinal flora in the prevention and treatment of CHD based on the theory of "heart-to-small intestine", the theory of homology of medicine and food, and the theory of acupuncture and moxibustion. This paper summarizes the research on the intervention of traditional Chinese medicine on intestinal flora in the prevention and treatment of CHD by consulting relevant contributions in Chinese and English in recent years. It is found that monomers or extracts of traditional Chinese medicine, Chinese medicine pairs and traditional Chinese medicine preparations can regulate the occurrence and development of CHD by interfering with intestinal flora, such as regulating the risk factors of CHD, such as blood glucose and blood lipids, or increasing the production of SCFAs to prevent atherosclerosis, reducing the production of TMAO and preventing thrombosis. It is expected that this discussion can provide a new idea for traditional Chinese medicine to interfere with intestinal flora in the prevention and treatment of CHD.
Environmental Sanitation with the Incidence of Helmothermal Disease

Environmental sanitation of an environment consisting of sewage facilities, water supply facilities, garbage disposal facilities, and wastewater disposal facilities. And the sanitation must be owned by every housing that is maintained, clean and healthy, in order to prevent environmental pollution. This study was conducted with the aim to determine the relationship between environmental sanitation and the incidence of helminthiasis in elementary school children in the Barrang Lompo island area with a sample size of 143 children aged 5-10 years. The variables in this study were fecal disposal facilities (latrines), house floors, provision of trash bins, and clean water facilities as part of environmental sanitation. The method used was observational method with cross sectional study design. The results of this study were there was no relationship between latrine ownership and helminthiasis with a value of P = 0.077 > 0.05. There is a relationship between the floor of the house and the incidence of helminthiasis where the value of P = 0.000 < 0.005. There is a relationship between clean water facilities and the incidence of helminthiasis where P value = 0.000 < 0.05. There is a relationship between waste disposal facilities and the incidence of helminthiasis where the P value = 0.000 < 0.05. The conclusion shows that there is an association between helminthiasis in children aged 5-10 years with clean water facilities, house floors, and garbage disposal.
The Mechanism of Antimicrobial Activity of Conjugated Bile Acids against Lactic Acid Bacilli

The mechanism underlying antimicrobial activity of conjugated bile acids against strains of lactic acid bacilli is not well understood. The purpose of this study was to investigate two typical conjugated bile acids (glycochenodeoxycholic acid and taurochenodeoxycholic acid) for their mechanisms of antimicrobial activity against four strains of different species of lactic acid bacilli at the physiological pH of the small intestine of humans. The bacterial cell membrane integrity, transmembrane potential, and transmembrane pH gradient were examined using the fluorescence probes SYTO 9 plus propidium iodide, 3,3′-dipropylthiadicarbocyanine iodide, and 5(6)-carboxyfluorescein diacetate N-succinimidyl ester, respectively. The intracellular ATP levels were measured by the firefly luciferase-based bioluminescence method. It was found that the antimicrobial activity of conjugated bile acids against the strains of lactic acid bacilli is strain-specific, and glycochenodeoxycholic acid showed significantly greater antimicrobial activity than taurochenodeoxycholic acid against the strains of lactic acid bacilli. The conjugated bile acids inhibited the growth of strains of lactic acid bacilli by disrupting membrane integrity, dissipating transmembrane potential, reducing the transmembrane pH gradient, and depleting intracellular ATP. In conclusion, the antimicrobial activity of conjugated bile acids against lactic acid bacilli is a multifactorial phenomenon. This study will provide valuable information for developing strategies to improve the ability of lactic acid bacilli to tolerate bile in vivo.
Influence of Torque on Platform Deformity of the Tri-Channel Implant: Two- and Three-Dimensional Analysis Using Micro-Computed Tomography

Background and Objectives: The insertion of the dental implant in the bone is an essential step in prosthetic rehabilitation. The insertion torque has the potential to distort the prosthetic platform, which can cause future biomechanical problems with the continuous action of occlusal forces. The aim of this study is to evaluate different insertion torques in the deformation of tri-channel platform connections through two- and three-dimensional measurements with micro-CT. Materials and Methods: A total of 164 implants were divided into groups (platform diameter and type): 3.5, 3.75, and 4.3 mm NP (narrow platform), and 4.3 mm RP (regular platform). Each implant–platform group was then divided into four subgroups (n = 10) with different torques: T45 (45 Ncm), T80 (80 Ncm), T120 (120 Ncm), and T150 (150 Ncm). The implant–abutment–screw assemblies were scanned and the images obtained were analyzed. Results: A significant difference was observed for the linear and volume measures between the different platforms (p < 0.01) and the different implant insertion torques (p < 0.01). Qualitative analysis suggested a higher deformation resistance for the 3.75 NP compared to the 3.5 NP, and RP was more resistant compared to the NP. Conclusions: The 0.25 mm increment in the implant platform did not increase the resistance to the applied insertion torques; the 4.3 mm implant was significantly stronger compared to the 3.5 mm implant; and the proposed micro-CT analysis was considered valid for both the 2D and 3D analyses of micro-gaps, qualitatively and quantitatively.
Evaluation of Colombian coffee waste to produce antioxidant extracts

During coffee production, several types of waste such as pulp, mucilage, husk, parchment, coffee silver skin, and spent coffee grounds are generated. The amount of coffee waste and their environmental issues require effective valorization. Those wastes can be used as a source of bioactive compounds. In this work, solid-liquid extraction was used to obtain different solutions, and their phenolic contents, antioxidant capacities, fatty acid profiles, and antimicrobial activities were evaluated. Characterization of the waste materials showed that the highest yield (18.8%) was obtained for spent-coffee grounds. The highest total phenolic contents, caffeine and epicatechin, was observed for coffee pulp extract. Catechin was only observed for parchment. The lipid fraction in the coffee by-products extracts indicated that the spent coffee ground had a higher amount of total lipids, followed by the pulp, and finally the parchment. The most predominant fatty acids in all the extracts were palmitic, stearic, linoleic, oleic, arachidic, and behenic. However, parchment and coffee pulp extracts exhibited an inhibition halo against E. coli bacteria growth.
Models of pre-registration student supervision in allied health: a scoping review

Introduction: The aim of this scoping review was to identify, organise and synthesise existing evidence in relation to the supervision of allied health students on clinical placement.Methods: Five databases were searched for peer reviewed articles published from 2000 onwards. Data were extracted and analysed according to approaches to supervision, and student and/or educator outcomes for different models used. Each outcome was aligned to modified Kirkpatrick levels of evaluation.Results: 39 articles were reviewed. The terms models and approaches were poorly defined and used interchangeably in the clinical placement literature. Studies varied in the methods employed and were typically of low to moderate methodological quality with a dominance of Kirkpatrick level 2a outcomes reported.Conclusions: This review has proposed a definition of supervision models to enable future research comparisons between models and to provide clarity to placement providers’ decision making. Overall evidence for reported outcomes is mixed and not strong enough to draw conclusions in favour of any one model. Approaches to supervision, not student ratio, may well be the catalyst for positive outcomes for all stakeholders and therefore should be the focus of future research.
Pengaruh Knowledge Management terhadap Kinerja Tenaga Kesehatan di Puskesmas Sulawesi Selatan

Knowlegde management didefinisikan sebagai cara yang digunakan oleh organisasi untuk menangkap, mentransfer. Penelitian ini bertujuan untuk mengetahui pengaruh knowledge management terhadap kinerja tenaga kesehatan di puskemsas Sulawesi Selatan. Jenis penelitian yang digunakan adalah penelitian kuantitatif dengan rancangan penelitian eksprimen. Total populasi 60 responden dan dan sampel 30 responden sebagai kelompok intervensi dan 30 sebagai kelompok kontrol. Pengambilan sampel menggunakan metode sampling jenuh. Analisis data menggunkan univariat untuk mendekskripsikan karakteristik responden dan karakteristik variabel, analisis bivariat menggunakan uji t test. Hasil penelitian menunjukan bahwa ada pengaruh knowledge management terhadap perencanaan kelompok intervensi p=0.000<0.05 dan kelompok kontrol p=0.000<0.05, pelaksanaan dan pergerakan kelompok intervensi p=0.000<0.05 dan kelompok kontrol p=0.000<0.05, pengawasan, pegendalian dan penilaian kelompok intervensi p=0.000<0.05 dan kelompok kontrol p=0.000<0.05 pada kinerja tenaga kesehatan di puskesmas Sulawesi Selatan. Diharapkan bagi tenaga kesehatan yang telah mengikuti pelatihan lebih meningkatkan kinerja manajemen puskesmas (P1, P2 dan P3) dengan mengimplementasikan knowledge management dan dapat berpengaruh positif terhadap kinerja kesehatan yang dalam pelaksanaanya bisa berjalan dengan optimal sehingga mencapai tujuan yang direncanakan.
Comparative Evaluation of Micro-hardness and Surface Roughness of Different Composites Resins and Polishing System (In-Vitro Study)

: Objectives: The purpose of this study was to evaluate the microhardness and surface roughness of Nano hybrid and Nano-fill composites with and without polishing technique (in-vitro study). Materials and Methods: sixty-four samples were prepared in disc-shaped stainless-steel molds with a uniform size of 6 mm in diameter and 4 mm in thickness. The samples were divided according to the materials used into two groups of 32 samples for each material, and each group was then subdivided into subgroups according to the polishing instruments with 16 samples in each subgroup: Group I (control group) (Mylar’s strip) with no finishing and polishing. Group II, the specimens’ surfaces were finished with an ultrafine diamond finishing bur and polished with Sof-lex discs. Each subgroup was divided into two groups according to measurements of surface roughness and microhardness (n=8). The surface roughness was measured by using Mitutoyo Japan Surftest SJ-210 Tester and surface microhardness was measured using Vickers microhardness tester (Wilson TukonTM1102, Germany). The data were analyzed using two-way ANOVA for both the surface roughness and microhardness tests, followed by pairwise test for multiple comparisons Results: the Mylar’s strips (control group) exhibited significantly lower roughness values (smoothest surface) than the polishing systems (p <0.0001). Nano-fill composite showed statistically significantly lower surface roughness. Nanohybrid composite showed statistically significantly higher microhardness value. Conclusions: The control group had the lowest surface roughness and microhardness values compared to the polishing group. Nano-fill composite showed lower surface roughness compared to nanohybrid composite. Nanohybrid composite had a higher microhardness value when compared with nano-fill composite.
Combined Fuzzy Sliding-Mode Attitude Stabilization and Energy Storage for Small Satellite

Integrating the attitude control and power storage subsystems of modern small satellites is of great significance in reducing the total cost of development and deployment in orbit. A combined energy and attitude control system adopts composite flywheels as actuators and energy storage simultaneously. Such small satellites should possess both stronger robustness and storage capability in the mission, especially confronting spatial disturbances. This article integrates sliding-mode control with fuzzy logic as a strategy to realize highly robust triaxial attitude stabilization under simultaneous solar radiation, gravity gradient, and aerodynamic disturbances while facilitating the momentum exchange of flywheels to improve energy storage capability. Unlike conventional nonlinear control, fuzzy logic can generate fuzzy rules to adaptively regulate sliding-mode switching gains. It strengthens system robustness in evidently decreasing angular velocities and control moments with finite-time convergence. Simulation results demonstrate the superiority of the proposed fuzzy sliding-mode control to a terminal sliding-mode control algorithm in combined attitude stabilization and energy storage, and also reveal the positive correlation of the control with energy storage capability. Moreover, the effects of key control parameters on multiple performance indices are analyzed to provide references for further research on combined energy and attitude control systems.