Miracle-dz/UniFAR-FTUs huggingface dataset:
Effect of Electrolytes and Microbial Culture toward Electricity Generation Utilizing Tempe Wastewater in Microbial Fuel Cell

Demand for electricity has become a crucial requirement of Indonesian society. Resources, which generate electrical energy such as fossil fuel, is predicted to run out within the next dozen years. Microbial Fuel Cell is a development of the latest technology that uses microbes to break down a substrate. This activity will cause potential difference and generate electricity. Microbes which generate electricity could be derived from pure culture and mixed culture. In this study, mixed culture of tempe wastewater microbes is used by adding electrolytes variation which are ammonium chloride-potassium chloride, potassium permanganate, and potassium persulfate in a single chamber reactor. The optimum voltage and power density are 62,09 mV and 3,01 mW/m 2 when using potassium persulfate. Result of this research are compared to others research which using pure culture of L.bulgaricus by adding electrolytes variation which are potassium ferrycianide and potassium permanganate. In additional, utilization of potassium permanganat in mixed culture of tempe wastewater microbes and pure culture of L.bulgaricus are also compared to each other. The optimum voltage and power density of those comparison are 457 mV and 167,7 mW/m 2 when using potassium permanganat in pure culture of L.bulgaricus .
Effect of a Resin Coating Material on the Microleakage of Class V Restorations With or Without Post-Operative Bleaching

Objective: To evaluate the effect of a resin coating material on the microleakage of Class V composite resin restorations with and without post-operative bleaching. Material and Methods: Eighty class V cavities (3×3×1.5 mm) were prepared and filled with Z250 XT composite resin in the buccal and lingual surfaces of 40 sound human molars. Then the samples were randomly divided into 4 groups (n=20) and treated as follows: Group A: applying a resin coating (G-Coat Plus) on the restoration, then bleaching with 40% hydrogen peroxide; Group B: Post-Operative bleaching without prior use of resin coating; Group C: applying resin coating agent, and no further bleaching; and Group D: no resin coating, no bleaching. The specimens were thermocycled and immersed in 1% methylene blue for 24 hours, then cut into sections bucco-lingually. The samples were scored regarding the amount of dye penetration under a stereomicroscope (x20). Data were analyzed with Chi-squared and Fisher exact tests (p<0.05) . Results: The maximum gingival and occlusal microleakage was detected in group B, while the minimum was seen in group C. In all the groups, microleakage at gingival margins was higher than occlusal margins (p<0.001) . Conclusion: Application of a resin coating is an effective method in reducing microleakage of the restorations before and after bleaching.
Communication floods – Emails in scholarly communication

The aim of this study is to display the current email usage among academics and the email‘s influence on the field of science by analyzing qualitative interviews and media diaries with 55 German-speaking academics. Emails pose a particular challenge for separating work and personal spheres. Mobile media such as tablets and smartphones reinforce the penetrating effects of emails. Our results show that scholars hardly engage in a temporal and spatial separation of the spheres when accessing work emails. This is one of the reasons why emails contribute to a perception of information overload and stress. While emails cause problems in many fields, we assume that it is particularly pronounced in the scientific field. In order to raise awareness for this topic and to facilitate the handling of emails in the scientific community, we recommend introducing email workshops and regulations at universities.
Destination Brand Positioning Theme Development Based on Consumers’ Personal Values

This research note reports an investigation into the personal values that are salient to consumers when considering stopover destinations during long-haul travel. The findings, from personal interviews using the Repertory Test and laddering analysis, present destination marketers with potential brand positioning themes based on personal values. One of the greatest challenges facing destination marketers is developing a succinct brand positioning theme representative of a multiattributed entity that effectively differentiates from competing places offering similar attributes and benefits. It is argued that the development of a brand identity based on personal values, which subsume a myriad of attributes and benefits, has the potential to appeal to a broader range of travelers. This study, in the context of international stopover destinations for Greek travelers, replicated a similar investigation undertaken in the context of Australian domestic short-break holidays. The commonality between the findings of the two studies supports the development of a proposition that a relatively small number of personal values are relevant across different destination travel contexts. This could represent a solution to the challenge of developing a brand positioning theme that will be relevant across different markets and will appease the diversity of stakeholders at the destination.
Development of a Small and Lightweight Missile Fin Control Actuation System Driven by Novel Dielectric Elastomer Actuators

In missile technology, for the high maneuverability of guided missile systems, miniaturization and lightweight technologies are essential. Therefore, novel actuator technologies are required for the miniaturization and reduction in the weight of fin control systems that control the direction of guided missiles. In this article, we introduce fin control actuation systems (FCASs) driven by dielectric elastomer actuators (DEAs) that possess the characteristics of living muscles for miniaturization and lightening of the missiles. Each actuator has a very light weight of 3.5 g; furthermore, it is compact in size, with a diameter of 9.5 mm and length of 65 mm, so that it can be bundled in small volumes as required. Prototypes of the developed DEA-based FCAS can achieve angular displacements of up to 12.5$^{\circ }$ and a high torque performance of up to 56.4 N$\cdot$mm. In addition, a controller capable of switching a high voltage at a high frequency has been manufactured to improve the control performance of DEA-based FCAS. To evaluate the performance of the completed FCAS, tests with regard to the step response, frequency response, repeatability, and performance change with respect to temperature were carried out and used to verify the effectiveness and practicality of the developed system by presenting and analyzing the experimental results.
Clinical Characteristics of 660 Patients with COVID⁃19/ 新型冠状病毒肺炎660例临床特征分析

Objective The purpose of this study was to investigate the clinical presentation, laboratory results, therapeutic methods and prognostic outcomes of SARS-CoV-2 pneumonia (COVID-19) Methods A total of 660 cases of newly diagnosed COVID- 19 were collected, and the basic data, clinical manifestations, laboratory test results, treatment and outcome were statistically analyzed Results Most COVID- 19 patients are middle-aged and elderly, while mild and moderate types are more common in women and severe and critical cases are more common in men Some patients had chronic history of hypertension, coronary heart disease, diabetes, etc The main clinical symptoms were fever (79%), Cough (65%), difficulty breathing (39%), fatigue (36%), muscle aches (23%), headache (6%), etc The laboratory results mainly included increase of leukocytes, decrease of lymphocytes, increase of granulocyte-to-lymph ratio, and increase of inflammation indicators, which accompanied by different degrees of liver and kidney function impairment, and myocardial enzymes increase to varying degrees After active anti-viral, anti-infection, hormone, globulin, and respiratory support treatment, 578 patients (88%) were cured Conclusion The middle-aged and elderly people, patients with underlying diseases such as hypertension, coronary heart disease, diabetes, and COPD were high-risk populations of COVID-19 COVID-19 severe type and critically ill patients have more severe viral infections and inflammatory reactions and worse prognosis
Antimicrobial resistance of Escherichia coli found in intestinal tract of Oreochromis niloticus

Antimicrobial resistance (AMR) is an emerging public health problem worldwide. Agricultural practices have been suggested as one of the main contributors to the emergence and transmission of AMR worldwide. Aquatic animals like fish have an important role to play in the emergence and transmission of AMR strains. Escherichia coli is commensal in gastrointestinal tracts of many animals including fish, and is an indicator organism and opportunistic pathogen. It has been listed as one of the important bacteria involved in the emergence and spread of antimicrobial resistance factors. The objective of this study was to investigate the AMR patterns of E. coli isolated from the intestinal tract of fish within the Lake Victoria basin. A total of 60 Oreochromis niloticus fish were sampled from cages, wild and earthen ponds. Distal gastrointestinal tract was recovered, crushed and streaked on violet red bile agar, incubated at 37 OC for 24 hours. The isolates confirmed biochemically as E. coli were screened for antibiotic susceptibility against 10 commonly used antibiotics using disc diffusion method. Eighty three percent of the sampled fish were positive for E. coli. Generally, isolates were susceptible to ciprofloxacin, gentamicin, cephalexin, ceftriaxone and nitrofurantoin (100%); tetracycline, sulfamethoxazole-trimethoprim (81.8%) and nalidixic acid (72.7%). However, most of them were resistant to ampicillin and erythromycin (72.7%). The results show that fish are reservoirs of E. coli, which is resistant to some antibiotics. The factors responsible for the observed resistance patterns need to be followed up with more research. Good aquaculture practices, surveillance and monitoring of resistant bacteria will help in understanding the problem of AMR. Key words: Antibiotics, antimicrobial resistance, Escherichia coli, fish
Investigations of the oxidative stability of rendered protein meals and their suitability as feed ingredients

Rendered protein by-products used as feed ingredients in companion animal, aquaculture, and livestock diets may be susceptible to protein oxidation during storage and processing. These ingredients are expected to be stable for up to 2 years at ambient temperatures, yet the stability and functionality of proteins in these ingredients during storage and processing is unclear. If these products are susceptible to protein oxidation, rendered proteins may contain a greater amount of oxidized products have the potential to induce changes in oxidative status when consumed by animals. Oxidative stress has clear implications on both livestock production and animal longevity. Consumption of oxidized lipids has been shown to induce oxidative stress and reduced performance in livestock. It is critical to understand if consumption of oxidized protein can also induce oxidative stress. The objective of this dissertation was to determine the extent to which storage and extrusion may impact protein oxidation in rendered protein meals, and how protein oxidation affects their suitability as an animal feed ingredient. It was hypothesized that storage and extrusion of rendered protein meals will cause an increase in protein oxidation that when fed to animals will reduce performance and induce oxidative stress. A study was conducted to determine if the common method to measure protein oxidation by carbonyls was more effective at detecting differences in protein oxidation than detecting specific oxidation products of lysine and arginine via mass spectroscopy analysis. It was determined that the mass spectroscopy approach was too specific and was not representative of total protein oxidation. Fish meal and poultry blood meal were shown to be susceptible to protein oxidation during 7 days of storage at 45°C as well as during 6 months of storage at 20°C. Mixed tocopherols were effective in limiting oxidation in fish meal stored at 45°C for 7 days whereas ethoxyquin was more effective at limiting the extent of protein oxidation in fish meal stored long-term at 20°C.
Silicon nitride photonic crystal cavity coupled with NV-centers in nanodiamonds

The development of integrated quantum photonics requires a high efficient excitation and coupling of a single photon source with on-chip devices. In this paper, we show our results of modelling for high-Q photonic crystal cavity, optimized for zero phonon line emission of NV-centers in nanodiamonds. Modelling was performed for the silicon nitride platform and obtained a quality factor equals to 6136 at 637 nm wavelength.
Obsessive compulsive disorder symptom exacerbation during Covid-19 related lockdown managed with homoeopathy: A case report

Background: Obsessive compulsive disorder (OCD) is one of the most personally distressing, and disabling psychiatric condition. COVID 19 pandemic and country wide lockdown are likely to exacerbate the symptoms in diagnosed cases of OCD. Homoeopathy, an established system of medicine with potential relevance to mental health issues has a sparse literature in management of OCD. Objectives: The primary purpose of this case report is to point out the usefulness of Individualized homoeopathic medicine in treatment of OCD. The secondary purpose is to highlight the utility of similimum in the management of exacerbation of psychiatric conditions due to stressful life situations. Methods: A case of OCD reported in Psychiatry out Patient Unit treated by Classical Homoeopathy is presented in this case report. The case was assessed at baseline and follow up visits with Yale Brown Obsessive Compulsive Scale (Y-BOCS). Results: Baseline Y-BOCS score of 24 (Severe OCD) turned gradually to subclinical range of seven within 6 months. Patient had excellent relief for next six months and was functionally well. A comparatively milder exacerbation of symptoms (Y-BOCS-17) during lockdown could be managed effectively with the repetition of similimum resulting in subclinical score of five quickly within a month. Conclusion: Homoeopathic medicine is useful in the management of OCD and also symptom exacerbation due to stressful life events like lockdown.
Influence of Raised Ambient Temperature on a Sensor Node Using Step-Stress Test

The monitoring of environmental condition, together with soil parameter, is extremely important in precision farming technologies. One of the best solutions to implement environmental monitoring system in agriculture is to use a wireless mesh network to cover large area and ensure fault tolerance. A low-cost and low-power sensor node for mesh architectures has been developed and tested in this work. The node is based on a system on a chip microcontroller and few sensors to acquire air temperature, air humidity, soil temperature, soil moisture, and solar radiation. Generally, the effects of temperature on the dynamic metrological performance and on the reliability of wireless sensor network are not adequately dealt with. Moreover, no international standard for the environmental test of wireless sensor networks is available. In this article, a temperature step-stress test profile was implemented to characterize the behavior of the prototype at different temperature, from 20 °C up to 80 °C (step of 5 °C) using a climatic chamber. The aim of the test was to characterize which are the effects of the overheating on the current consumption, the sensor response, the analog-to-digital converter, and the digital-to-analog converter. The experimental test highlights some minor anomalies. However, all the unexpected behaviors are not caused by permanent failure mechanisms that lead to failure in the whole node. They are simple drifts that disappear when temperature returns to the standard environmental conditions.
Determinants influencing audit delay: The case of Vietnam

Article history: Received March 9 2020 Received in revised format March 15 2020 Accepted May 18 2020 Available online May 18 2020 This research is conducted to investigate determinants that affect delays in the signing of audit reports in Vietnam. The audit delay is measured as a function of the number of days that elapse from the accounting period until the date when the audit report is signed. This study employs a sample of 142 foreign direct investment (FDI) firms in Vietnam in 2019. We use Linear regression analysis, modelling audit delay as a function of the following explanatory variables: firm size, audit firm type, sign of income, audit opinion, and leverage. The findings indicate that the firms that report net income, that have standard audit opinion, and that have bigger size release their audited financial statements earlier. Variables such as auditor firm and leverage show no significant relationship with audit delay. by the authors; licensee Growing Science, Canada 20 © 20
Forecasting Natural Gas Prices Using Highly Flexible Time-Varying Parameter Models

Abstract Distinctive regional characteristics in different natural gas markets have increased the difficulty in accurately forecasting natural gas prices. Moreover, the natural gas markets have experienced great structural instability due to advancement in technology and rapid financialization over the past few decades. We employ three classes of flexible time-varying parameters models to evaluate the effects of the regional characteristics and structural instability on natural gas prices forecasts. Using the data from the US, EU and Japanese markets from 1992 to 2019, we find that allowing different time-varying dynamics of the model parameters is crucial in forecasting natural gas prices. For Japan and the EU, models allowing gradual changes in coefficients and drastic changes in volatility have the best forecasting performance, while most of forecasting gains appear to have come from allowing gradual changes in volatility for the US. In addition, embedding t-distributed errors can further improve the forecast accuracy.
Antimicrobial properties of crude extracts of Moringa oleifera against some pathogenic bacteria and fungi isolated from different sites on human body

Moringa oleifera, or the horseradish tree, a is a pan-tropical plant, is one of approximately thirteen species belonging to the monogeneric Moringaceae family. Many reports have appeared in mainstream scientific journals describing its nutritional and medicinal properties. M oleifera was its use for the treatment of infectious skin and mucosal diseases. As it is common practice for researchers to scientifically validate the efficacy of traditional medicine, it is less common for researchers to scientifically validate simple, reproducible means of conferring therapeutic benefits of plant parts. This study was conducted to investigate pragmatic extraction techniques for seed and leaf extracts of M. oleifera, a plant species for which numerous studies have demonstrated its antimicrobial efficacy. M. oleifera seeds and leaves were extracted. Sensitivity disks impregnated with the various extracts were used for antibiotic susceptibility testing of four bacterial species and two fungal species. The zone of inhibition was used to compare antibacterial efficacy between extraction methods, trials, and controls. Conclusion, significance and impact of study: The study showed that Moringa oleifera leaves possess inhibitory properties thus can serve as an alternative therapy for wounds, certain fungal infections, bacterial, and a good source of nutrient supplements.
Molecular Analysis of Environmental Water Samples as a Monitoring Method for the Fish Parasite Ichthyophthirius multifiliis

approved: ______________________________________________________ Jerri L. Bartholomew ABSTRACT Parasites are ubiquitous members of ecological communities, capable of contributing to the decline of vulnerable populations. Therefore, monitoring parasite level is a critical component for host management. Molecular tools, such as quantitative polymerase chain reaction (qPCR), can be valuableParasites are ubiquitous members of ecological communities, capable of contributing to the decline of vulnerable populations. Therefore, monitoring parasite level is a critical component for host management. Molecular tools, such as quantitative polymerase chain reaction (qPCR), can be valuable additions to monitoring protocols that assess parasitic disease risk to hosts. To be successful, monitoring protocols must capture biologically relevant environmental data, and relate that data to disease risk. This project assesses the application of molecular analysis of environmental water samples for monitoring the ciliate protozoan Ichthyophthirius multifiliis (Ich) in the Klamath River, CA. Ich is an economically and ecologically significant parasite of freshwater fishes, and has contributed to mortality of pre-spawning adult salmon throughout the Pacific Northwest, including in the Klamath River. Chapter 1 introduces the study site (the lower Klamath River, CA), host population of concern (Klamath River salmonids), parasite of interest (Ich), and primary molecular technique (qPCR). Chapter 2 describes the development and validation of a qPCR assay targeting the SSU rDNA of Ich, as well as the initial application of the assay to environmental water samples. Chapter 3 presents a field application of the sampling method. Chapters 2 and 3 demonstrate the assay’s potential to inform the management of Ich infections in the Klamath River. Chapter 4 compares the genetic variation of Ich isolates published in GenBank, and those collected from pet shops (OR) and natural rivers (CA) (primarily the Klamath River) at the cox1 and SSU gene loci. This research indicates that qPCR analysis of environmental water samples could be a valuable monitoring tool for waterborne Ich in the Klamath River. ©Copyright by Claire K. Howell December 12, 2017 All Rights Reserved Molecular Analysis of Environmental Water Samples as a Monitoring Method for the Fish Parasite Ichthyophthirius multifiliis by Claire K. Howell A THESIS submitted to Oregon State University in partial fulfillment of the requirements for the degree of Master of Science Presented December 12, 2017 Commencement June 2018 Master of Science thesis of Claire K. Howell presented on December 12, 2017