Miracle-dz/UniFAR-FTUs huggingface dataset:
Spectral Efficiency Improvement of Full-Duplex D2D Communication in Cellular Networks

Radio spectrum is becoming scarce due to increasing demand for high data rate, mobile communication and ever-expanding population with diverse need to always stay interconnected. The cellular network providers and researchers in the academia are continually finding innovative ways to efficiently manage the existing telecommunication infrastructure and plan effective for future expansions and technology. Device to Device (D2D) communication, Full-Duplex (FD) radio, Heterogeneous network are a few of such innovative technologies developed to face the challenges. Device to device communication is one promising technology that is studied for deployment in future network technologies, however it is not without its challenges. Various researches have been carried out and are still being carried out to better understand and improve device to device capabilities. The use of full-duplex radios is an area of study with capability for improving device to device communication due to recent development in full-duplex radio although its major drawback is limited self-interference cancellation abilities to be deployed in large transmit power system. This research presents the practicality of deploying existing FD radios in device to device communication and simulate the amount of self-interference cancellation required using MATLAB for effective use with device to device. Two interference management schemes were implemented to improve the performance of FD-D2D communication, first power control scheme was developed to mitigate interference between D2D and base station in uplink resource sharing, Interference Limited Area (ILA) method was adapted to deal with interference between D2D and cellular user Uplink and Downlink transmission. The performance between 75dB to 110dB Self-Interference (SI) cancellation was carried out. The result was compared to conventional cellular and Half-Duplex D2D communication to estimate the improvement offered on spectral efficiency. The work has improved on achieving almost 100% spectral efficiency thereby improving the Quality of Service (QoS) for cellular network
Predictors of modern contraceptive use among women in Meru and Arusha districts in Northern Tanzania

Background: Contraceptive use reported to avert more than 1 million maternal deaths in Sub-Saharan Africa due to decline in fertility rate and thus help to achieve MDG 4 and 5. Therefore, this study aims to determine the prevalence of modern contraceptive use, describe common methods used, source of methods and factors that predict contraceptive use among women of reproductive age (WRA) in Arusha City and Meru District Council (DC) in northern Tanzania. Methodology: The study is based on data from a cross-sectional survey conducted from January – May 2018. The study enrolled women aged 16-44 years from five selected wards in each district. Interviews were conducted at participant’s homes using electronic data collection system. Descriptive and analytical statistics were used to analyze the data.Results: A total of 3,938 women were enrolled, of whom 3,658 were sexually active at the time of survey. The mean age of 3,658 women was 30.5 (SD 7.3) years. The prevalence of modern contraceptive use (mCPR) was 47%, with no significant difference between Arusha City (47%) and Meru DC (44%). Implants (26.9%), injectables (21.5%) and pills (13.0%) were three of the common contraceptives currently used among the users. Public health facilities were the main source (72.6%) of contraceptive methods. Married/cohabiting women were significantly using modern method of contraceptives compared to single women (Adjusted Prevalence Ratio [aPR = 2.1) as were women with two or more children than others (aPR=1.5). Cost, distance, and time due to busy schedules were key challenges to access family planning (FP) services as reported by the women. Conclusion: Nearly half of WRA in the two districts were using modern contraceptives. Implants have become the most common method of contraceptives than injectables and pills. Health management teams in the two districts will need to come with strategies for improving use of other modern FP methods and improving community-based availability of contraceptive services to contribute in improving mCPR to the 60% target.
Formulation and in vitro Evaluation of In-situ Gelling Liquid Suppositories for Naproxen

In-situ gelation is a process of gel formation at the site of application, in which a drug product formulation that exists as a liquid has been transformed into a gel upon contact with body fluids. As a drug delivery agent, the in-situ gel has an advantage of providing sustained release of the drug agent. In-situ gelling liquid suppositories using poloxamer 188 (26-30% W/W) as a suppository base with 10% W/W naproxen were prepared, the gelation temperature of these preparations were measured and they were all above the physiological temperature. Additives such as polyvinylpyrrolidin "PVP" ,hydroxylpropylmethylcellulose "HPMC", sodium alginate and sodium chloride were used in concentration ranging from (0.25-1%W/W) to modulate the gelation temperature and gel strength . The best preparation was obtained through using a combination of poloxamer 188, sodium alginate, naproxen and distilled water (29,0.5,10and 60.5 % W/W respectively)with gelation temperature of 33.6oC±0.2 and gel strength of 28±2 seconds. The release of drug from this preparation was sustained for about 12 hours and it was faster than conventional solid suppository (Proxen® 500) and oral tablets (Naproxen®500) using dialysis tubing method. Key words: - naproxen, in-situ gelation, liquid suppository, poloxamer188
Overview of Recommendation System: Approaches and their Prosperity

: The information on the internet is tremendous to retrieve the required data from a vast amount of information available on the internet is strenuous. To make it easier we have a recommendation system or engine. These are chiefly used in commercial applications. This system filters the information dynamically based on user's interests and preferences. It has an essential feature to predict whether an individual user would prefer items or not based on the user's predilection. The recommender system plays a vital role in a variety of areas like product and service-based companies. Web recommender systems are categorized into various approaches such as collaborative filtering, content based, knowledge based and hybrid recommender systems. Many recommender systems are used by some of the popular websites like Amazon.com, Netflix.com etc. This paper focuses on foremost challenges faced by recommender systems and their solutions. Our findings indicate that the use of a hybrid approach is better than other individual approaches. We conclude that the recommender system increases the value and economy to the company by simply satisfying the customer needs and interests.
First Report of Hepatitis E Virus in Shellfish in Southeast Italy

Hepatitis E virus (HEV) represents one of the principal causative agents of hepatitis globally. Among the five HEV genotypes affecting humans, genotypes 3 and 4 are zoonotic and are the main source of hepatitis E in developed countries. HEV has been detected in several foods. The present work investigated the presence of this virus in shellfish sold at retail in the Apulia region of Italy. The presence of HEV RNA was assessed by real-time RT-PCR in 225 shellfish samples collected during 2018. Overall, two (0.89%) of these samples tested positive for HEV RNA. To our knowledge, this is the first notification of the detection of HEV in mussels sold at retail in the Apulia region. These data highlight the potential role of shellfish as a vehicle for the transmission of viral pathogens.
Technological Capabilities, Open Innovation, and Eco-Innovation: Dynamic Capabilities to Increase Corporate Performance of SMEs

Currently, small and medium enterprises (SMEs) play a leading role in most of the world’s economies. For this reason, they seek technological competitiveness and improvement of their innovation activities. In this context, open innovation and eco-innovation are important elements to achieve these goals. With this background, the purpose of this paper is to analyze the relationship between technological capability, open innovation, and eco-innovation in corporate performance, testing a structural equation model using SmartPLS in a sample of 684 small and medium-sized companies in Mexico. The main results show that technological capability significantly influences open innovation and eco-innovation practices, not directly in corporate performance, but through open innovation or eco-innovation. Our results also confirm the positive effects that eco-innovation and open innovation have on SMEs’ corporate performance. These results have important implications in the literature on dynamic capabilities that have not been previously tested. For companies and decision-makers, it shows why these practices in small and medium-sized companies should be encouraged.
Burnout among Nurses during Coronavirus Disease 2019 Outbreak in Shiraz

Background: The function of healthcare workers, particularly nursing staff, in taking care of coronavirus disease 2019 (COVID-19) patients, cannot be overemphasized. As the pandemic lasts, burnout among the nursing staff needs to be considered as an important challenge. This was aimed to assess the nurses’ burnout and factors affecting this variable. Materials and Methods: In this cross-sectional study, Maslach Burnout Inventory was completed by 261 nurses in Shiraz hospitals (Iran) in April 2020. This questionnaire addresses different aspects, including emotional exhaustion, personal achievement, and depersonalization, to determine the intensity of perceived burnout among nurses during the outbreak. Results: Our data demonstrated that the nurses’ burnout in Shiraz hospitals during the COVID-19 pandemic was high (64.6%). Emotional exhaustion and depersonalization were observed in 63.6 and 53.3 percent of the participants, respectively. Moreover, the rate of successful personal achievement among these nurses was >97%. Work experience <10 years (P=0.016), hospital ward (P=0.044), the number of deaths observed by nurses during the COVID-19 pandemic (P<0.001), and the total number of shifts during the COVID-19 pandemic (P=0.006) had a positive correlation with emotional exhaustion. Conclusion: Workload and stress resulting from the COVID-19 outbreak seem to be one of the major causes of emotional exhaustion in nurses. The emotional exhaustion among nurses must be considered in epidemics, such as COVID-19.
LLC LED Driver with Current-Sharing Capacitor Having Low Voltage Stress

In this paper, an LLC light-emitting diode (LLC LED) driver based on the current-sharing capacitor is presented. In the proposed LED driver, the LLC resonant converter is used to step down the high input voltage, to provide galvanic isolation, to offer a constant current for LEDs. Moreover, the current-sharing capacitor connected to the central-tapped point of the secondary-side winding is used to balance the currents in two LED strings. By doing so, the voltage stress on this capacitor is quite low. Above all, the equivalent forward voltages of the two LED strings are generally influenced by the temperature and the LED current, and this does not affect the current-sharing performance, as will be demonstrated by experiment on the difference in number of LEDs between the two LED strings. In addition, only the current in one LED string is sensed and controlled by negative feedback control, while the current in the other LED string is determined by the current-sharing capacitor. Moreover, this makes the current control so easy. Afterwards, the basic operating principles and analyses are given, particularly for how to derive the effective resistive load from the LED string. Eventually, some experimental results are provided to validate the effectiveness of the proposed LED driver.
Filamentous organism bulking in nutrient removal activated sludge systems: Paper 8 : The effect of nitrate and nitrite

The presence of nitrate (NO 3 - ) and nitrite (NO 2 - ) has a significant effect on the proliferation of low F/M filamentous organisms in nitrogen (N) and nutrient (N and phosphorus-P) removal activated sludge systems. In experiments in which the concentrations of NO 3 - and NO 2 - were manipulated in the 2nd anoxic reactor of a modified University of Cape Town (MUCT) nutrient removal system, either by addition of ammonium to the influent or by dosing NO 3 - or NO 2 - to the 2nd anoxic reactor, the extent of low F/M filamentous organism proliferation could be controlled, as measured by the diluted sludge volume index (DSVI). With a sufficiently high TKN/COD ratio (> 0.10 mgN/mgCOD) in the influent, or by dosing NO 3 - and NO 2 - at a level at which the denitrification potential of the anoxic zone was exceeded by the NO 3 - or NO 2 - load, the DSVI increased from values less than 100 m/g to values greater than 150 m/g in periods of between 3 and 5 sludge ages. It could not be determined which of NO 3 or NO 2 had the most significant effect on filament proliferation. While the stimulatory effect of the NO 3 - or NO 2 - passing into the aerobic zone on low F/M filamentous organism proliferation was positively identified, the mechanism by which this effect operated could not be established.
BİREY-ÖRGÜT UYUMUNUN BAĞLAMSAL PERFORMANS ÜZERİNE ETKİSİNDE BİREY-İŞ UYUMUNUN DÜZENLEYİCİ ROLÜNÜN BELİRLENMESİNE YÖNELİK BİR ARAŞTIRMA

The purpose of this article is to reveal the role of person-job fit in the influence of employees' person organization fit levels on their contextual performance. In the literature review, no research was found on the role of person-job fit in the relationship between person– organization fit and contextual performance. A questionnaire was created to measure the research variables. Data collected from 458 employees were subjected to frequency analysis, reliability analysis, confirmatory factor analysis, correlation analysis and hierarchical regression analysis. R2 = 0,179 on the effect of person–organization fit on contextual performance; R2 = 0,217 on the effect of person–organization fit and person-job fit on contextual performance. According to the obtained results; It has been determined that individual-job fit plays a moderating role in the effect of individual-organization fit on contextual performance.
Design of a Real-Time Breakdown Voltage and On-Chip Temperature Monitoring System for Single Photon Avalanche Diodes

The design and implementation of a real-time breakdown voltage and on-chip temperature monitoring system for single photon avalanche diodes (SPADs) is described in this work. In the system, an on-chip shaded (active area of the detector covered by a metal layer) SPAD is used to provide a dark count rate for the breakdown voltage and temperature calculation. A bias circuit was designed to provide a bias voltage scanning for the shaded SPAD. A microcontroller records the pulses from the anode of the shaded SPAD and calculates its real-time dark count rate. An algorithm was developed for the microcontroller to calculate the SPAD’s breakdown voltage and the on-chip temperature in real time. Experimental results show that the system is capable of measuring the SPAD’s breakdown voltage with a mismatch of less than 1.2%. Results also show that the system can provide real-time on-chip temperature monitoring for the range of −10 to 50 °C with errors of less than 1.7 °C. The system proposed can be used for the real-time SPAD’s breakdown voltage and temperature estimation for dual-SPADs or SPAD arrays chip where identical detectors are fabricated on the same chip and one or more dummy SPADs are shaded. With the breakdown voltage and the on-chip temperature monitoring, intelligent control logic can be developed to optimize the performance of the SPAD-based photon counting system by adjusting the parameters such as excess bias voltage and dead-time. This is particularly useful for SPAD photon counting systems used in complex working environments such as the applications in 3D LIDAR imaging for geodesy, geology, geomorphology, forestry, atmospheric physics and autonomous vehicles.
High temperature desulfurization of biomass-derived synthesis gas probed by X-ray absorption spectroscopy

of this thesis Supply with sustainable energy and fuels is one major task of the 21st century. One such sustainable source for fuels and energy is biomass, which has been used as energy carrier by mankind from its beginning. A particularly attractive recent option is converting wood into synthetic natural gas (SNG), which is primarily composed of methane (CH4). This process mainly consists of gasification of the wood, cleaning of the generated gas from impurities, and subsequent catalytic methane synthesis. After this wood-to-SNG process has proved its general feasibility, some hurdles for competitive market implementation remain. Among these hurdles is gas cleaning. Currently, gas cleaning is performed after high temperature gasification in low temperature processes, where tars, sulfur species and water are removed from the gas by liquid scrubbing. Sulfur removal is required to protect downstream catalysts from poisoning and equipment from corrosion. Before subsequent methanation at 300 400 °C, water needs to be evaporated for adjustment of the H2 to CO ratio by means of the water-gas shift reaction. This causes not only thermal losses due to cooling and reheating, but also requires investment for heat exchangers and evaporators, ultimately increasing the overall costs of the wood-to-SNG process. To overcome the inefficient low-temperature cleaning, several options for high-temperature gas cleaning from sulfur impurities are proposed, of which three will be discussed in this thesis. All processes have in common the concept of perdiodic sulfur uptake by a solid material and subsequent regeneration, allowing a separation of the sulfur from the gas stream. To understand these processes, time-resolved X-ray absorption spectroscopy (XAS) was employed to probe the transient solid phase, while simultaneous mass spectrometry was used to study the activity of the system by analysis of the gas phase. This allows proposing mechanisms for sulfur transport over the different materials, which in turn allow dedicated development and optimization of materials and processes for sulfur removal. Manganese-based sorbents were studied for their ability to remove H2S from a gas stream at high temperatures. It was shown that the sorbents remove H2S from the gas over multiple cycles and release the sulfur as SO2 under oxidizing conditions. A two-step mechanism for sulfidation of manganese was found, indicating that SO2 is generated by reduction of Mn3O4 with H2S. This undesired reaction impedes complete desulfurization under the tested conditions.
Economic Analysis of Cassava Production: Prospects and Challenges in Irepodun Local Government Area, Kwara State, Nigeria

This study was carried out to analyse cassava production, prospects and challenges in Irepodun local government area, Kwara State, Nigeria. It aimed to examine the determinant variables and determine the profitability level of cassava enterprises. The study was based on primary data obtained with the aid of structured questionnaire from 100 cassava farmers drawn through multi-stage sampling techniques from the study area. Data were analysed using descriptive statistics, ordinary least square (OLS) regression model and gross margin analysis. The result of the OLS regression estimates showed that farm size, cost of fertilizer application, farm size, herbicides, family and hired labour were significant variable affecting cassava production in the study area. Fertilizer, farm size and hired labour are significant at 1% while herbicide and family labour are significant at 10%. The study found that the average gross margin per hectare for cassava production in the study area was ₦24,749.28 ($65.30) with a gross benefit ratio of 1.38. This shows that for every ₦1 invested in the business of cassava production, there is a corresponding profit of ₦1.38. The major challenges identified in cassava enterprise are huge transportation cost, high cost of production, lack of improved cassava cultivars, and lack of market linkages. The study concluded despite the problem encountered in the study area, cassava production is profitable and can serve as a panacea for economic improvement of households. Therefore, the study recommends that basic inputs such as improved cassava varieties, herbicides and fertilizer should be made available at affordable price. Also, infrastructural facilities such as good road network and improve marketing channels should be provided in order to sustain current cassava production rate and economic gains from the production.
4.2.4 - Integriertes Präkonzentrator-Gassensor-Mikrosystem zur Detektion von Spurengasen in Innenraumluft

Die Funktionsweise eines integrierten Mikrosystems von Prakonzentratoren und Gassensoren wird. mit Hilfe der Finiten Elemente Methode (FEM) untersucht. Als Prakonzentratormaterial wird MIL-53, ein spezielles Metallorganisches Netzwerk (metal organic framework,MOF) verwendet. Mit Hilfe des Modells lasst sich basierend auf dem temperaturabhangigen Verteilkoeffizient und den Diffusionseigenschaften ein Faktor fur die Aufkonzentration uber die Zeit bestimmen. Der Verteilkoeffizient zwischen Prakonzentrator und Luft wurde mittels inverser Gaschromatographie (iGC) bestimmt. Fur eine Benzolkonzentration von 10 ppb in Luft bei einer Adsorptionstemperatur von 50 °C fur 300 s und einer Desorptionstemperatur von 200 °C wird am Ort der Sensoren eine Konzentrationsspitze von fast 250 ppb vorhergesagt. Fur Toluol ist unter den gleichen Bedingungen die Aufkonzentration deutlich geringer (ca. 160 ppb). Testmessungen zeigen eine erfolgreiche Anwendung des Prinzips, allerdings ist dies auf niedrige relative Feuchten begrenzt. Bei hohen relativen Feuchten treten Effekte auf, die zu einer starken Abnahme der Sorptionseigenschaften fuhren.
Flaxseed bread for therapeutic nutrition

The study analyzes the effects of the diet and various classes of macronutrients on metabolism, as well as the use of low-carb nutrition in the treatment of cardiovascular diseases, diabetes, and metabolic syndrome. The authors have proposed an optimal set of ingredients for the production of bread, the use of which will allow to correct the course of these diseases, and also will allow consumption for groups of people suffering from intolerance to gluten, milk and sugar. Two recipes for yeast-free flaxseed bread with the addition of a vegetable drink made from oats and hazelnuts, as the least allergenic foods, are proposed. The analysis of the quality of the finished product is performed, as well as the comparison of samples in nutritional value with industrial varieties of bread, including products made for the dietary sector.
Mapping the Current Research Agenda on Scholarly Publishing: Scopus-Indexed Reviews

Nearly ten years ago, scholarly publishing came to the fore in research on scientific communication spurred by the evolving Open Science system, the reinvention of peer reviews, and new attitudes to scholarly publications in the ranking-based academic environment. Here, the JLE editors revisit the field of scholarly publishing and identify the most popular areas where potential JLE authors might have difficulty. In this editorial, Scopus-indexed reviews are analysed to map the prevailing trends. The editorial review shows that the trends include open access, peer review transparency, the changing role of libraries in scholarly publishing, CrossRef’s initiatives, outsourcing and skills lacking in publishing, open-access monographs, and the role of commercial publishers.
Modulation of volatile thiol and ester aromas in wine by modified wine yeast

Jan H. Swiegers, Robyn Willmott, Alan Hill-Ling, Dimitra L. Capone, Kevin H. Pardon, Gordon M. Elsey, Kate S. Howell, Miguel A. de Barros Lopes, Mark A. Sefton, Mariska Lilly and Isak Pretorius.