Miracle-dz/UniFAR-FTUs huggingface dataset:
GENETIC AND EXPLORATION IMPLICATIONS OF THE ZINC RATIO [100 Zn/(Zn + Pb)] IN THE RODRUIN PROSPECTING AREA OF THE GOLDEN TRIANGLE -EGYPT

Egypt Rodruin Prospecting Area (26 o 21 / 59 // N, 33 o 20 / 32 // E) in the Golden Triangle -Egypt, was exploited by the Ancient Egyptian Miners. They exploited gold from gossans and gossanous gold-bearing quartz veins. Rodruin deposit is hosted by altered and bleached deeply weathered volcanoclastic-metasedimentary and metavolcanic rocks, which underlain by argillaceous metasedimentary rocks. The characteristic "zinc ratio " [100 Zn/ (Zn + Pb)] can be used to distinguish the Rodruin ore deposit zones. In addition, the distribution mode of zinc ratio at Aladdin’s Hill is completely different than those from North Ridge, Central Valley and Central Buttress mining working zones. The former shows bimodal distribution, while the latter show single distribution. The zinc ratio of the Aladdin’s Hill zone is wide range (6.98-99.53%) with high standard deviation (> 31.85), Spiral Pit and GF-zones is narrow (86.11-99.97%) with very low standard deviations (< 3.83), while it moderately varies (27.27-99.30%) with low standard deviations (< 12.03) in North Ridge, Central Valley, Central Buttress, and South Ridge zones. The "tail" of high lead samples with zinc ratios below 70 may be the result of leaching of zinc from the sub-outcropping mineralization. Variations in the zinc ratio between the Rodruin ore zones indicate that the mineralizing solutions were zinc saturated and Pb-under saturated rather than the volcanic source rocks that were not lead-zinc rich.
Cyclic performance of exterior R.C beam-column strengthened with different thicknesses of CFRP sheets

The recent ground motion results indicated that the RC buildings are required to be retrofitted by different strengthening techniques. Nowadays, the external strengthening gain interest since its easy, cost effective and not required redesign of buildings. The CFRP sheets are suitable solution and utilized by a number of researchers. However, the numerical cyclic performance of connection strengthened with different thicknesses of CFRP need to be well investigated. This study assessed the performance of RC exterior beam column connection strengthened with CFRP sheets First, two grades of concrete are utilized to be control specimens, normal concrete compressive strength (C20) and high concrete compressive strength (C50) then, the specimens are retrofitted with different thicknesses (1.2, 2.4, 3.6mm) of CFRP sheets. The stresses and damage states showed the importance of connection retrofitting. The CFRP shift the plastic hinge zone away from the panel zone. Furthermore, the results demonstrated that by increase of CFRP thickness the connection resistance will be improved. The comparison between the hysteresis curves demonstrated that the yield and ultimate loading were enhanced for strengthened connection for both concrete grades and the incremental in thicknesses also increase them. The outputs also exhibited that the stiffness and ductility has increased for retrofitted specimens indicating that the CFRP comprehensively overcome the applied cyclic loading and the beam column connection is able to resist such type of loading.
Green synthesis of silver nanoparticles using Calotropis gigantea and its characterization using UV-Vis Spectroscopy

The use of Calotropis gigantea from Ie Seu-Um, Aceh Besar geothermal area for silver nanoparticles (AgNPs) synthesized has been reported. The process of synthesis AgNPs can be carried out with chemical methods, physical methods, and green synthesis methods, but in this study, the process is focused on the green synthesis method using C. gigantea flowers and leaves extract from Ie Seu-Um geothermal area, Aceh Besar. Phytochemical analysis showed that C. gigantea leaves contain alkaloids, steroids, tannins, phenolics, and saponins, while the flowers of C. gigantea contain alkaloids, terpenoids, steroids, flavonoids, tannins, phenolics, and saponins. The reaction of the AgNPs formation was observed by colour change formed. AgNPs-C. gigantea flower extract dan AgNPs-C. gigantea leaves extract showed the reddish-brown and brownish-yellow solution respectively after 48 h incubation in dark condition at room temperature. The result of the reaction characterized using UV-Vis Spectrophotometry showed that the phenomenon of Surface plasmone resonance (SPR) occurs in the mixture of nanoparticles formed. The concentration of AgNO3 as a reagent affected the SPR phenomenon. The result showed that particles formed are the same size and shape.
Human-centered computing and the future of work: lessons from Mechanical Turk and Turkopticon, 2008-2015

Author(s): Silberman, M. Six | Advisor(s): Tomlinson, Bill; Nardi, Bonnie A | Abstract: Online labor markets such as Amazon Mechanical Turk (AMT), Uber, and TaskRabbit are contributing to rapid changes in the nature of work for hundreds of thousands of workers. These markets create significant new economic opportunities, but most currently treat workers as second-class citizens. Take-home pay is often low compared to similar work in traditional employment arrangements, and workers have limited means of influencing market design or management practice. This makes it hard for workers to create reliable livelihoods from the opportunities these markets present. This dissertation uses AMT, an online labor market for small information tasks, as a case through which to examine the consequences of treating workers as second-class citizens, to argue that future platform designs and management practices should treat workers as central stakeholders, and to develop theory and method for doing so.The central argument of the dissertation is that workers' concerns should be more substantively and systematically addressed in the design and operation of online labor markets. Five messages elaborate this argument. First, in online labor markets, some workers are casual or transient, while others are professionals, providing significant and reliable value to customers and relying on income earned in the market to meet basic needs. Second, workers who rely on income earned through online labor markets should be considered first-class stakeholders, alongside customers and shareholders. Third, workers in online labor markets are rarely the narrowly self-interested profit maximizers of classical economic theory. Workers can be better understood as "situatedly rational" actors: human beings with incomplete information and finite cognitive capabilities whose actions and preferences are shaped by many factors, including rules, norms, and expectations. Fourth, online labor markets are not monolithic, perfectly competitive markets but parts of polycentric economic systems composed of complexly interlinked action situations characterized by imperfect competition and incomplete information. Fifth, institutions supporting crowd work research should develop an interdisciplinary practice-oriented agenda to understand the consequences of current online labor market designs and practices, and to develop new designs and practices that incorporate workers who rely on market income as central stakeholders.
THE POTENTIAL ROLE OF ERYTHROPOIETIN ON FATTY LIVER INDUCED BY METHIONINE CHOLINE DEFICIENT DIET IN ADULT MALE RATS

With recent upsurge in obesity, the prevalence of nonalcoholic fatty liver disease (NAFLD) is growing globally. The objective of this study was to investigate the influence of erythropoietin (EPO) therapy on NAFLD and the role of transforming growth factor beta one (TGFβ1). NAFLD was induced in adult male albino Wistar rats by administration of methionine choline deficient (MCD) diet. Serum level of aspartate aminotransferase (AST), alanine aminotransferase (ALT), albumin, bilirubin, triglycerides (TG), total cholesterol (TC), body weight, liver weight and liver weight /body weight ratio were measured in different experimental groups to assess the liver affection. Liver samples were taken for measurement of TG, TC, malondialdehyde (MDA), reduced glutathione (GSH) and tumor necrosis factor alpha (TNF-α) as well as histopathological detection of hepatic tissue injury and immuno-histochemical assessment of TGFβ1. As compared to the control group, MCD diet was found to produce a significant increase in serum level of AST, ALT, liver weight and liver weight/ body weight ratio, accompanied with a significant increase in liver tissue MDA, TNF-α and TGF-β1 immuno-histochemical scoring. However, there was a significant decrease in hepatic GSH level. It also resulted in significant elevation in hepatic TG and TC, significant decrease in serum TG and TC levels and non-significant change in body weight, serum albumin and bilirubin. These results were supported by histopathological changes in hepatic tissues in the form of steatosis of hepatocytes and inflammatory cells infiltration. These results were reversed by EPO treatment. EPO treatment showed a hepato-protective effects against the development of NAFLD with a significant preservation of liver functions and structure that could be explained by the anti-oxidant, anti-inflammatory and anti-fibrogenic effect of EPO treatment.
Effects of Preheating Treatments on the Performance of Perovskite Solar Cells

Perovskite solar cells (PSCs) have fascinated widespread focus for prominent perfomances recently. The processing parameters in spin-coating have great influence on the efficiency of PSCs. Herein, we have researched the influence of different preheating treatments on the perfomance of PSCs. The power conversion efficiency (PCE) has a significant enhancement to 15.89% through preheating the substrate together with precursor solution simultaneously. This work promotes the development of high performance PSCs and their industrialization.
Research Progress of Heat Resistant Magnesium Alloys

Magnesium alloy has extremely excellent properties and is known as “21st Century Green Engineering Material”. This article mainly introduces the influence of the heat resistance and comprehensive performance of the three series of Mg-Al, Mg-Zn and Mg-RE heat-resistant magnesium alloys after adding rare earth elements, alkali metal elements and other elements. Three development directions of improving the heat resistance of magnesium alloys are prospected. These are: 1. Using cheap alloy elements (such as Ca, Si, etc.) to replace rare earth elements of the heat-resistant magnesium alloy, 2. Titanium element is added to improve heat-resistant magnesium alloy’s mechanical properties and its strength, 3. The new casting process and processing technology are used to improve the heat-resistant magnesium alloy’s properties. This article aims to provide technical reference for the development of my country’s magnesium alloy industry.
Study on Stability of Hand-in-hand Structure of Multi-terminal DC Hydrogen Production System

Multi-terminal DC (MTDC) hydrogen production systems are becoming one of the important forms of power distribution systems with the increasing growth of distributed renewable energy sources (such as PV and wind turbines), energy storage devices, and DC loads. To explore the key factors in stability analysis, the circuit diagram of MTDC hydrogen production system in hand-in-hand structure composed of voltage source converters (VSCs), DC lines, renewable energy and DC hydrogen production load was established in this paper. The overall state space model of the system was put forward, taking the master-slave converter control strategy into consideration. Then, the small-signal stability analysis of the MTDC hydrogen production system was carried out by comparing and analyzing the moving trajectories of the dominant eigenvalues in different system parameters. The key factor affecting the stability of the system such as DC capacitance of the converter and the electrolyzer power in the DC bus are determined. On this basis, a simulation model of the low-voltage MTDC hydrogen production system was built based on MATLAB/Simulink to verify the correctness of the theoretical analysis.
The growth performance of Peking ducks fed with rations containing probiotic agents and waste products of leubiem fish (Chanthidermis maculatus)

The purpose of this study was to evaluate the growth performance of Peking ducks fed with rations containing waste products of leubiem fish (Chanthidermis maculatus) and probiotic agents. The study was conducted experimentally using 96 Peking ducks, within an age range of about 1 to 8 weeks, and a Completely Randomized Design (CRD), which consisted of four treatment rations and four replications. The treatment rations used in this research included treatment R0, which was the basal diet, serving as the control ration, and also treatment R1, R2, and R3, which consisted of 10% concentration of leubiem fish skin, head, and bone, respectively, as well as 1% of a probiotic agent. The observed variables included the rate of feed consumption, body weight gain, final body weight, feed conversion ratio, and mortality were then analysed using Analysis of Variance (ANOVA). The results showed that the use of leubiem fish components and probiotic agents in rations at 10% and 1%, respectively, had a significant effect (p<0.05) on the rate of feed consumption, body weight gain, feed conversion ratio and final body weight. However, there was no significant effect on the mortality of Peking ducks. Therefore, this study concluded that the use of rations containing leubiem fishbone and probiotic agents at 10% and 1%, respectively, were able to accelerate the growth performance of Peking ducks.
Monitoring of damage and distribution of invasive fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) on maize crop in Karo, North Sumatera, Indonesia

The fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) is an invasive pest from America and has recently become an important pest in Indonesia. In their new environment, these pests have very high migratory and adaptive skills, as well as aggressive feeding habits. The aim of this research was to monitor the distribution, percentage of attacks, and damage caused by S. frugiperda on maize fields in the Karo District of North Sumatra Province. The study was conducted using a survey method at various altitudes and the sample unit was determined using the diagonal method. Each sample unit has a size of 2 × 2 m2. The age of maize crop used as the sample is 2-4; 5-6; 7-8; 9-10; and 11 weeks after planting (wap). Symptoms of attack, number of larvae population, and percentage of FAW attack were observed directly on plants. The results showed that FAW spread evenly at various altitudes, with the highest population at an altitude of 500-1,000 m.a.s.l at the age of 2-4 wap with a larval population density of 14.20 individual/unit sample. The highest percentage of attack was found at an altitude of 500-1,000 m.a.s.l, namely 82% at 2-4 wap. The highest attack on leaves occurred at an altitude of 500-1,000 m.a.s.l (70.6%) at the age of 2-4 wap.
Environmental resilience and physical structure of Bazian City

The ability of an organism or system to restore form and position elastically following a disturbance or interruption of any type is the true meaning of resilience. How often does the term “resilience” appear in regional or metropolitan contexts to allude to a local socio-economic system’s ability to rebound from a shock or disruption? Resilience can be characterized in a variety of ways. Another term is buffer capacity, which refers to a system’s ability to absorb disturbances and the quantity of disturbance before the system’s structure is altered by modifying the variables and processes that influence behavior. The study concludes that industrial activities affect the city in general and the city’s environment in particular through the pollutants caused by these activities. In order to develop planning solutions to address any change in the city under the concept of environmental resilience, the researchers paid attention to this aspect, which provides treatments, solutions, and suggestions in order to preserve the city from crises and Industrial activities that negatively affect the environment of the city, that the city of Bazian contains industrial factories for the manufacture of cement and bricks because it is rich in raw materials. Of the importance of industrial activities that contribute to the production of an economic resource for the region, but there are deficiencies in the ecological systems that maintain the direct impact of these industries on the environment, the insufficiency of regulations and legislation within the framework of industrial determinants.
Association between Telecommuting and Household Travel in the Chicago Metropolitan Area

AbstractExtensive research has examined numerous transportation outcomes of home-based telecommuting, but few studies have investigated the outcomes of household-level travel. This article explores whether telecommuting is associated with different levels of household travel for various trip purposes, using 2008 household travel survey data of the Chicago metropolitan area. Results suggest that less-frequent telecommuters tend to undertake longer one-way journey-to-work (JTW) distances than frequent telecommuters and nontelecommuters; households with less-frequent telecommuters have longer JTW distances than the other households. Telecommuting is not associated with the durations of school trips or routine shopping trips but is associated with longer total daily trip duration on the days that telecommuters go to their workplaces. On the telecommuting days, households with less-frequent telecommuters tend to travel the similar amount as households without telecommuters, and those with frequent telecommuter.
Increase in body weight and protein retention on meat chicken due to the addition of probiotics and digestive enzymes in fermented diet containing maggot flour and local materials

The purpose of this study was to determine the growth response of meat chickens due to the addition of probiotics and digestive enzymes in the fermented diet containing maggot flour and local materials. The research was carried out at Field Laboratory of Animal Science, University of Syiah Kuala-Banda Aceh, Indonesia for 66 days. A total of 100 meat chickens were designed using a completely randomized design (CRD) consisting of 5 treatments, namely P0 = 100% fermented ration (control), P1 = 0.5% probiotic + 0% digestive enzymes + 100% fermented diet, P2 = 0% probiotic + 0.5% digestive enzymes + 100% fermented diet, P3 = 0.5% probiotic + 1% digestive enzymes + 100% fermented diet, P4 = 1% probiotic + 0.5% digestive enzymes + 100% fermented diet with 4 replications. The data obtained were analyzed using ANOVA (Analysis of variance) and significant difference of data was analyzed by Duncan’s multiple distance test. The results showed that the addition of probiotics and digestive enzymes with different levels of administration in the fermented diet had a significant effect (P<0.05) on the increase in final body weight and percentage of protein retention. The best results were obtained on chicken fed on fermented diet contained 0, 5% digestive enzymes by increasing on final body weight, protein retention, feed conversion and feed efficiency which were higher than fermented feed containing probiotics. In conclusion, it was well known that digestive enzyme effected synergistically on fermented diet in increasing protein retention resulted a higher final body weight of meat chicken.
Identification of feeding pattern and their impact on milk fatty acid profiles from traditional dairy cows in Pangalengan Sub-district

Fatty acids (FA) profiles especially conjugated linoleic acid (CLA) are commonly used to distinguish milk quality. However, its content is very sensitive and tends to change with a different type of feed. The study aims to identify the relationship between the feeding system and milk FA profile in the Pangalengan sub-district. The feeding system and milk FA profiles were studied using two-step post observatory research. Step one, milk was collected from 27 traditional-dairy farms using purposive random sampling and compare with a large-scale farm. The result shows that FA profiles vary greatly among traditional-farms especially for long-chain FA (LCFA) which was found in small concentrations. CLA content was also found higher in traditional-farms. Step two, five traditional-farms with the highest CLA milk content were observed for their feeding systems. Parameter observed including cow’s specification, feed type used, and feed intake. The best ration produced high milk CLA and production was the ration consisted of 38 % high-quality forages and 62 % commercial concentrate. Thus, it can be concluded that milk from traditional farms was better than milk from large-scale farms. The best milk CLA was produced with a combination of 38 % high-quality forages and 62 % commercial concentrate.
Robust control of butterfly-shaped linear ultrasonic motor based on Takagi-Sugeno fuzzy systems

To overcome friction drive nonlinear from the one-dimensional platform position driven by a butterfly-shaped linear ultrasonic motor,the fuzzy Takagi-Sugeno(T-S)models for the motor and the platform were established based on the working principle of a motor and the sector nonlinearity.Based on the T-S models,the servo positioning control algorithm without steady-state errors was designed by using augmented method.As the robust H∞ was considered,a disturbance rejection controller design for the T-S fuzzy models was presented.The designed control algorithm was realized on an embedded micro-controller.Experiments with different values of the stepper servo positioning were carried out.The experimental results show that the overshoot of the system in different step values is less than 4%. The experimental comparison of servo positioning control between the no-load and load conditions indicates that the system maximum overshoot is less than 5%. As compared with traditional PID control,the control system proposed in this paper gives higher positioning accuracy,good stability and an excellent robust.
Augmented Reality: Visualisasi Batik 3D Ragam Hias GeometrisMotif Ceplok, Kawung, Nitik, dan Parang

Batik sebagai warisan budaya dunia milik bangsa Indonesia perlu dipublikasikan dan ditumbuhkembangkan. Pengembangan prototipe aplikasi Augmented Reality (AR) untuk memvisualisasikan batik 3 dimensi (3D) dengan ragam geometris, menggunakan metode marker based tracking dengan perangkat pengembangan Unity. Marker berupa potongan satuan unit gambar motif batik Ceplok, Kawung, Nitik, dan Parang yang dibuat dalam bentuk buku saku. Obyek 3D berupa motif batik berbentuk kerangka dan pejal yang dapat diputar ke atas-bawah maupun ke kanan-kiri. Aplikasi dapat berjalan dengan baik ditinjau dari aspek usability (3,55) sangat baik, correctness (3,18) dan reliability (3,25) baik, serta efficiency (2,82) dan portablity (2,93) cukup baik. Tinggat kemiripan pola 3D untuk motif Kawung (3,80), Nitik (3,80), dan Parang (3,33) sangat baik, serta Ceplok (3,13) baik. Sudut pandang yang menarik serta mudah dikenali adalah dengan merotasi objek terhadap sumbu z 45o. Kata kunci: Augmented Reality, Batik 3D, Ragam Geometris