Miracle-dz/UniFAR-FTUs huggingface dataset:
Renewable energy in sustainable supply chain: A review

In the search of sustainable process and products, ecofriendly policies have been developed over the years, aiming at reducing the environmental impacts as a step toward sustainability. Among the environmental impacts, alternatives to mitigate the greenhouse gas emissions - GHG stand out due to the concerns with climate change. Then, the development and use of renewable resources become relevant. Considering that supply chains are intense in energy consumption and GHG emissions (since involves processes related to supply, production, transport, consumption), it becomes relevant to investigate if the management of sustainable supply chain are considering the renewable energies in their processes. Therefore, this paper aims at mapping the role of renewable energies in the context of sustainable supply chain, analyzing the literature published at Web of Science database - WoS about the subject. The main researchers, organizations, collaboration networks were presented, and the 21 most cited studies were mapped in this paper. The research was carried out with the papers published at WoS until 2019, using VantagePoint software to handle information. The findings show that the research about renewable energy in the context of sustainable supply chain has been growing, especially since 2010. Moreover, biomass, biofuels and photovoltaic energy were the most recurrent sources of renewable energy studied by most cited papers. However, the theme presented itself as new and that there are still potential to be explored.
Self-diffusion method for broadband reflection in polymer-stabilized cholesteric liquid crystal films

ABSTRACT Chiral nematic liquid crystal (N*-LCs) films with wide pitch gradients covering the near infrared (NIR) region are facilely obtained by a simple controlling diffusion method. The polymer network can not only fix the orientation of N*-LCs, but also serves as a diffusion channel for substances, and has excellent compatibility. First, in the design of the pre-polymerisation (Incomplete polymerisation) layer, mainly by controlling the content of polymerisable monomer and UV-absorbing dyes in N*-LCs, a polymer network with density gradient distribution and suitable for material diffusion is formed, and the substrate of the oil repellent layer on the side of the low-density polymer network is easier to be peeled off. Then, nematic liquid crystals are injected between the pre-polymerisation layer and another oriented glass substrate. Due to the large concentration difference of chiral compounds and UV-327 between the two liquid crystals, the gradient distribution of spacing is formed by diffusion. Because of the gradient distribution of the UV-327, the gradient distribution of the pitch is further increased after polymerisation again. Finally, the effect of the UV-327 on the polymer network of the pre-polymerised layer is observed using SEM. Thus, a new method for reflective broadband in the near-infrared region is proposed. GRAPHICAL ABSTRACT
Analysis of Computer Crime in Singapore using Local English Newspapers

The purpose of this study was to collect and analyze computer crime cases in Singapore over a 6-year period from 2003 to 2008, and to understand the trend in computer crimes. For data collection, we constructed comprehensive query terms for searching all the computer crime cases in Singapore. All the related terms for “computer crime” were collected using two thesauri engines which were namely Inspect and Compendex. In the search phase, the two search engines, LexisNexis Academic and Factiva, were employed. The source of the articles was all English newspapers published in Singapore, such as The Straits Times, The Business Times, and Today. Based on the collected computer crime cases in Singapore, the top three computer crimes categories were hacking (32.4%), fraud (29.5%), and intellectual property theft (17.1%). Among these three categories, fraud had increased from 12.5% to 42.9% of total cases in the 6-year period. The analysis showed that the offenders were mainly male (90.3%) and in the age group between 18 and 40 years old (75%); 73.9% of the criminals had university or polytechnic education; 46.6% were at either management/professional or executive positions.
The Semantic Field of Ngethok 'to Cut' and Sociocultural Factors in Javanese Society: Sociosemantic Study

This research is motivated by the decreasing awareness of some people towards the preservation of the Javanese language, especially the younger generation. In their daily communication, some of them do not speak Javanese but speak Indonesian. In fact, in Javanese, there is a complex and complete lexicon that can express livelihoods, such as farming. At this time, these activities are starting to be abandoned due to technological developments and changing mindsets. This study aims to find and explain the semantic components of the lexicon of the verb ngethok [ngǝthͻ? ] 'to cut' and its lexemes and socio-cultural factors contained in the meaning of each lexeme. This research used a qualitative descriptive method and sociosemantic approach. The data was taken in the Borobudur area, Magelang Regency, Central Java Province. Data collection was carried out by interviewing, recording, and taking notes. In this study, three informants were used. The results of this study indicate that the lexicon of the verb ngethok 'to cut' has fifteen lexemes, namely mancung, mapras, mbabat, mbacok, mlathok, munthes, ngarit, nugel, nggraji, nggunting, ngiris, nyacah, nyembeleh, nyeset, and nyigar. Each lexeme has different lexical meanings. The socio-cultural factors of the community that are revealed in the ngethok ‘to cut’ lexicon and its lexemes are people who live in villages and work as farmers, people who work using traditional tools, people have a simple mindset and a strong spirit of mutual cooperation, and people help selflessly.
Fast on-line voltage security monitoring using synchronized phasor measurements and decision trees

This paper presents the results of a study for an online voltage security monitoring system in AEP. It is designed to work inside the control center with phasor measurement units (PMUs) providing the synchronized real-time measurements. Classification type decision tree (DT) models are utilized to predict voltage security status. Fast and direct measurement from PMUs combined with decision trees quickly assesses voltage security, leaving more time for corrective or preventive actions. Two attributes are considered in the decision tree models: generator VArs and angular difference. Both are observed to be good indicators of voltage security status. The paper focuses on the angle difference attributes because bus voltage angle is directly measured by the PMUs. A stressed power system is characterized by widening angular separation of bus voltage angles as it moves towards voltage insecurity. DTs exploit the complex nonlinear relationship between voltage security status and generator VArs/angular difference in terms of hierarchical rules extracted from a large number of offline loadflow simulations. Several DT models were analyzed using the existing PMUs, and in the future when additional PMUs are incrementally installed. A PMU placement technique is discussed to determine the critical locations of new PMUs. The voltage security monitoring system was tested on a 360-bus subsystem inside AEP.
SOLAR PHOTOVOLTAICS FOR SUSTAINABLE RURAL ELECTRIFICATION IN DEVELOPING COUNTRIES; THE EXPERIENCES IN PERU

It is nowadays accepted that solar photovoltaics represents for many rural areas in developing countries the only real possibility to get in the foreseeable future sustainable electrification, and improve so the livelihood of millions of people. Despite the availability of a mature technology of PV, however, only few successful projects of rural PV electrification are reported. The high investment cost of PV is normally considered as the main barrier, together with related problems like financing. The failure of many PV projects in rural areas of developing countries indicates however that there are also other conditions for a sustainable PV rural electrification. The experience of Peru has shown that there are several conditions, apart from the necessary financing, to make PV projects in rural electrification sustainable. This includes technical conditions, like a good quality control of all the components of the PV systems (battery, charge controller, etc.), as well as management and social conditions. Of particular importance is the involvement of the user of the PV system. We report here the experiences with different PV projects in Peru, especially with a very successful project of PV electrification with 421 Solar Home Systems (SHS) in the region of Titikaka Lake, mainly on the Taquile island. We think that an essential reason of the sustainability of this project is the fact that the SHS have to be repaid (eventually subsidized ) by their users, converting them finally in the owners of the systems.
Migration of aerobic bacteria from the duodenum to the pancreas with tumors: a mechanistic understanding

More aerobic bacteria are found in the pancreas with tumors than in the healthy pancreas. We provide a mechanistic understanding of the migration of intestinal bacteria from the duodenum to the pancreas with tumors. Mathematical models of migration of aerobic bacteria from the duodenum to the pancreas with tumors in the hepatopancreatic duct were developed. In addition, the behaviors of GFP E. coli under a pH gradient in a microfluidic device were analyzed. Moreover, upstream migrations of Pseudomonas fluorescens against flow were measured in a polydimethylsiloxane (PDMS) T-shaped cylinder mimicking a pancreatic duct. The simulated bacterial concentration of the pancreas with tumors was higher than that of the healthy pancreas and agreed reasonably well with the literature. Migration of aerobic bacteria in the hepatopancreatic duct is counteracted by bile and pancreatic juice flow but facilitated greatly by bacterial pH taxis from lower pH in duodenum fluid toward slightly alkaline pH in pancreatic juice, favorable for them. Migration of bacteria to the pancreas with tumors is made easier by solid tumors on the pancreatic duct, which compresses the pancreatic duct and thus reduces the fluid flow rate. On the other hand, GFP E. coli migrated under the pH gradient in a microfluidic device from acidic areas toward neutral or slightly alkaline pH, validating pH taxis. Furthermore, Pseudomonas fluorescens migrated upstream from hydrochloride solution but not from bicarbonate solution against bicarbonate flow at >20 µm/s, with an advancing velocity of approximately 60 µm/s, validating the models (244 words).
Lake Balaton as an accessible tourism destination – the stakeholders' perspectives

This paper discusses the situation in the emerging field of accessible tourism at the Lake Balaton destination. The main objective of the study was to explore the current situation of accessible tourism at Lake Balaton, focusing on the perspectives of tourism stakeholders. Various issues were reflected upon, such as: a) the “general” accessibility of the destination in terms of the current state of accessibility of the destination as well as the accessibility of information, transportation, accommodation, food and beverage services, tourist attractions, funds and know-how; b) factors that make the destination Lake Balaton competitive as an accessible destination; and c) general attitudes of tourism stakeholders towards accessible tourism. The research focus was on the destination itself, not on individual attractions or tourism service providers. In order to assess the current situation and future prospects for accessible tourism at Lake Balaton, an exploratory quantitative online survey among stakeholders was conducted between 5 September and 5 October 2020. A total of 39 stakeholders participated in the survey, including 11 local municipality stakeholders, 8 local destination management organisations, and 20 tourism service providers (accommodation, catering or attractions/sights). The results show that the Lake Balaton destination accessibility is currently at an early stage of development and tends to target groups with low accessibility needs. Among the factors of destination competitiveness for the accessible tourism market, supportive factors (e.g. accessibility, infrastructure, and the commitment of stakeholders) are ranked first, followed by resources and attractions (landscape, climate, activities, culture, history, tourism service providers, and events) and the quality factor (including value for money, safety, perception and image). Planning and management (including positioning and branding) is the lowest ranked factor even though such aspects are critical factors and foundations for the development of accessible tourism.
The Upper Limit of Denudation Rate Measurement From Cosmogenic 10Be(Meteoric)/9Be Ratios in Taiwan

The tectonically active Taiwan orogen features numerous rivers that yield a high amount of sediment with fluxes exceeding 104 t/km2/yr. Amongst these, the landslide‐dominated Liwu River is well studied regarding its dynamic surface processes. However, the quantification of denudation in the Liwu Basin is still an ongoing task as rates obtained to date are subject to substantial differences depending on methods that differ in their spatio‐temporal scales. We constrain an upper limit of global denudation using the cosmogenic nuclide 10Be(meteoric) and its ratio to stable 9Be. Meteoric cosmogenic 10Be is delivered to Earth’s surface by precipitation, whereas stable 9Be is released from rock weathering. In contrast to in situ cosmogenic 10Be measured in quartz, the 10Be(meteoric)/9Be ratio can be analyzed in quartz‐poor settings. 10Be(meteoric)/9Be‐derived denudation rates (Dmet) vary from 8.1 to >30 mm/yr in the Liwu mainstem, and from 3.4 to 21.5 mm/yr in the tributaries. These new Dmet are among the highest cosmogenic nuclide‐derived rates ever measured. Most of these rates agree with rates from sediment gauging or channel incision. We propose that stochastic landsliding plays a major role in denudation processes here. Using a soil‐bedrock mixing model and published riverine organic 14C data as a soil tracer, we estimate the fractional contribution of bedrock landslide material to mainstem sediments to be 55%–97%, which explains the magnitude and large variability (4‐fold) in Dmet. We demonstrate the complexity associated with denudation rates determination in landslide‐dominated routing systems; but also the potential of 10Be(meteoric)/9Be for tracing stochastic landsliding processes.
A fully matched N-way Doherty amplifier with optimized linearity

This paper presents a new fully matched N-way Doherty amplifier. The basic principles of operation and important features are described. For the experimental verification, 2.14-GHz Doherty amplifiers having two-, three-, and four-way structures are implemented using silicon LDMOSFETs and tested using down-link WCDMA signal. The linearity performances of the two-, three-, and four-way Doherty amplifiers are optimized for better efficiency versus linearity by a bias adjustment of the peaking amplifiers. For simultaneously improving the efficiency and linearity to achieve maximum efficiency versus linearity, the gate biases of the peaking amplifiers for the N-way Doherty amplifier are optimized. As a result, the efficiency versus linearity characteristics are drastically improved by N-way extension of the Doherty amplifier.
Sliming Lead Times in Courts of Law – A Case Study

The Court System is often criticized for not performing at its best. Cases take longer than expected. Research based on the Theory of Constraints and logistics took place in order to overcome these difficulties. The purpose of this paper is to identify reasons why civil cases do not flow through the court system as expected, and to discuss ways to shorten lead-times in the court process. A comparative analysis of two case studies, with six court departments and a representative sample of 299 civil summary cases is used. Two levels of analysis are performed: one considering the total period of time a case remains in each activity, the second considering the delays in each activity. Data is analysed using statistical computation. Findings show that although the judge staff and the judge are the main constrains in the system, others may emerge if poorly managed. Recommendations to shorten lead-times are provided.
A Novel Adaptive Approach for Autonomous Vehicle Based on Optimization Technique for Enhancing the Communication between Autonomous Vehicle-to-Everything through Cooperative Communication

Recent autonomous intelligent transportation systems commonly adopt vehicular communication. Efficient communication between autonomous vehicles-to-everything (AV2X) is mandatory to ensure road safety by decreasing traffic jamming, approaching emergency vehicle warning, and assisting in low visibility traffic. In this paper, a new adaptive AV2X model, based on a novel optimization method to enhance the connectivity of the vehicular networks, is proposed. The presented model optimizes the inter-vehicle position to communicate with the autonomous vehicle (AV) or to relay information to everything. Based on the system quality-of-service (QoS) being achieved, a decision will be taken whether the transmitting AV communicates directly to the destination or through cooperative communication. To achieve the given objectives, the best position of the relay-vehicle issue was mathematically formulated as a constrained optimization problem to enhance the communication between AV2X under different environmental conditions. To illustrate the effectiveness of the proposed model, the following factors are considered: distribution of vehicles, vehicle density, vehicle mobility and speed. Simulation results show how the proposed model outperforms other previous models and enhances system performance in terms of four benchmark aspects: throughput (S), packet loss rate (PLR), packet delivery ratio (PDR) and average delivery latency (DL).
Torque ripple reduction in DTC of induction motor driven by three-level inverter with low switching frequency

A torque ripple reduction technique of direct torque control (DTC) for high power induction motors driven by three-level inverters with the inverter switching frequency limited around 0.5-1 kHz level is presented. It is noted that conventional two-level DTC algorithms to reduce torque ripple are devised for applications with relatively high switching frequency above 2-3 kHz and cannot accomplish satisfactory torque ripple reduction for three-level inverter systems with such lower switching frequencies. A new DTC algorithm, especially for low switching frequency inverter system, illustrates quite reduced torque ripple characteristics all over the operating speed region. Simulation and experimental results show effectiveness of the proposed control algorithm.
Effectiveness of Teaching Program on Critical Care Nurses’ Performance during Endotracheal Suctioning in the Intensive Care Units in Syria

Background: The Intensive Care Unit (ICU) is a unit in the hospital which provides intensive care for critically ill or injured patients and is staffed with specially trained medical personnel and has equipment that allows for continuous monitoring and life support. Moreover, critical care nurses (CCNs) should have strong analytical, interpersonal, and decision-making skills. Also they need to continuously improve their knowledge, skills, and safe practice to deliver safe and effective care to their patients. Objectives: This study aimed to assess the effect of the teaching program on CCNs performance during endotracheal suctioning. Design: The quasi-experimental design was used in this study. Methods: The study was conducted from June to September 2020. This study was conducted to assess the effect of the teaching program on nurse’s performance during endotracheal suctioning in the critical care units at Al-Assad University Hospital, Damascus. All available registered nurses (48 nurses) who were working in the previous ICUs during the period of data collection were included in this study. An observational checklist sheet was developed by the researcher after reviewing the related literature. The duration of data collection was about three months, and each nurse was observed once for each procedure during different shifts. Based on the nurses’ need according to their performance during the initial assessment, the researcher developed and designed the teaching program. This program continued for two weeks consisting of four phases and contains workshop-practices (8hours) per day and educational pamphlet handout. The workshop practice consists of lectures, group discussion, and training scenarios. Every nurse must attend the training sessions daily, at least one hour. Results: The results showed that the level of knowledge and practice of the studied nurses in endotracheal suction was average and poor before the teaching program and the nurse’s level improved after the program. There was a variation of improvement regarding the nurses age, qualification, and experience. The best performance was for nurses with age group between 20-24 years, nurses with a master degree, and nurses with less than five years of experience. Overall, this study found a statistically significant relationship before and after the implementation of the educational program (p<0.001). Conclusion: There has been an obvious improvement of nurses’ knowledge and performance after the teaching program in relation to age, qualifications, and experience in all selective procedures. It is essential to help the nurses to expand their knowledge and practices to provide a high quality of care and promote patient safety.
Prunin modulates the Expression of Cerebral Serotonin Induced by Anxiety-Like Behavior in Mice

Anxiety is a state that becomesa disorder when a person experiences disproportionate levels of anxiety on a regular basis. This disproportion is also accompanied by excessive nervousness and fear. This study aimed to determine the protective effect of prunin using different anxiety models. Three preclinical anxiety models, elevated plus maze, light/dark, and social interaction, were employed in the study. Albino mice were selected and treated with pruninand other drugs for 7 days to determine their anti-anxiety effect. Thereafter, their behavior was examined using the plus maze, light-dark chamber, and other stimulatory parameters, such asimmobility, sniffing, and crawling during experimentation. Two doses (50 mg/kg and 100 mg/kg, p.o.) of prunin were administered to two separate mice groups. Further, fluoxetine (10 mg/kg; p.o.) was administered to one of the mice groups for 7 days. Thereafter, the levels of neurotransmitters, such as serotonin and GABA, in brain samples were determined. Based on the results, prunin significantly improved the behavior and mobility of animals in all three anxiety models. Further, prunin modulated the release of serotonin and GABA, demonstrating the mechanistic approach it employs to interact with cellular receptors to mimic neurotransmission. The mRNA expression levels of tph2 (5-HT synthesizing enzyme) and slc6a4 (5-HT transporter) were also found to be downregulated in both prunin- and fluoxetine-treated mice brains. Collectively, our findings suggest that prunin could be administered to treat anxiety in mice. However, further studies should be carried out to explore its potential for clinical application.