Miracle-dz/UniFAR-FTUs huggingface dataset:
Czynniki sukcesu zarządzania projektami usług IT

W świecie szybkich i ciągłych zmian rozwój technologii informacyjnych (IT) jest jednym z głównych elementów wpływających na skuteczność i efektywność przedsiębiorstw. Pomimo bardzo dużych nakładów czasu, pieniędzy i zaangażowania w zarządzanie projektami w tym zakresie, wciąż dość często nie udaje się ich zakończyć sukcesem. Niepowodzenia te powodują opóźnienia, zmiany w początkowych założeniach lub całkowitą rezygnacją z ich realizacji. Spośród dostępnych wielu różnych technik i metod coraz większą popularnością cieszą się podejścia, gdzie tradycyjne i zwinne środowiska współistnieją ze sobą. Celem tego artykułu jest wstępna identyfikacja i interpretacja potencjalnych czynników sukcesu dla projektów związanych z usługami IT występujących zarówno w podejściach tradycyjnych, jak i zwinnych. Opierając się na dostępnej literaturze zidentyfikowano i skonsolidowano listę potencjalnych czynników sukcesu projektów usług IT. Przeprowadzone badania oparto na kwestionariuszu ankietowym, a respondentami byli kierownicy projektów usług IT. Wyniki badań poddane zostały eksploracyjnej analizie czynnikowej, na podstawie której wyodrębniono sześć czynników (współpraca zespołów, zaangażowanie zespołu, wsparcie procesu zarządzania i szkoleń, zwinne zarządzanie planowaniem, organizacja środowiska pracy, elastyczność), w największym stopniu wpływających na powodzenie projektów usług IT. Wyniki przeprowadzonej analizy porównano z analogicznymi badaniami dostępnymi w literaturze światowej. Badania sugerują, że w ramach zarządzania projektami usług IT, kierownicy korzystają jednocześnie z elementów charakterystycznych dla tradycyjnych i zwinnych metodyk.
Biodegradation of Atrazine by Bacteria Isolated from Lotic Water

Background: The persistence of toxic herbicides in water and soil has been considered to be potential environmental concern. As atrazine is still used in Nigeria as a major herbicide, a continuous search for atrazine degrading microorganisms is required. Objectives: The effects of incubation period on growth and atrazine degradation by bacteria isolated from a lotic water in the Niger Delta were evaluated and also determined were the effects of temperature and anaerobic incubation on atrazine removal by the most efficient isolate. Methods: The bacteria capable of degrading atrazine were isolated from the lotic water using enrichment technique. The optimal incubation period for growth and atrazine degradation by the isolates was assessed by growing the isolates in Mineral salts medium containing 100 mg/L atrazine for 30 days at 35oC. The flasks inoculated with the most efficient isolate were also incubated anaerobically and at varying temperatures (25, 30, 35 and 40oC). Cultures were withdrawn every 5 days and growth and atrazine concentration measurements were carried out using standard plate count and HPLC respectively. Results: Atrazine degrading bacteria of the genera Pseudomonas, Bacillus and Micrococcus were isolated with Pseudomonas sp. as the most efficient isolate. Incubation time of 20 days was Original Research Article Ariole and Abubakar; JALSI, 2(3): 119-125, 2015; Article no.JALSI. 2015.013 120 observed as optimum for growth of the three isolates. Pseudomonas sp. gave the highest atrazine degradation rate of 82.67% followed by Bacillus sp. (75.33%) and Micrococcus sp. (69.33%) at the end of 30 days. Atrazine was degraded at reduced rate under anaerobic condition and temperature of 35oC was optimum for atrazine degradation by Pseudomonas sp. Conclusion: These atrazine degrading strains may be useful in bioremediation of contaminated wastewater.
Nutraceutical potential, quality and sensory evaluation of camu-camu pure and mixed jelly

Among the species of native Amazon fruit with promising potential are the Myrtaceae family, which belongs to the camu-camu (Myrciaria dubia (Kunth) Mc Vaugh), due to its great scientific, biotechnological, economic, nutritional and functional potential (Grigio et al., 2021). The increased economic exploitation of some fruit products and by-products is being attributed to growing consumer concern with healthy diet (Azevêdo et al., 2015; Fidelis et al., 2019; Yahia, 2009).
Cassava Starch Pearls as a Desiccant for Drying Ethanol

The fuel ethanol industry uses corn grits packed in fixed bed adsorption towers to dry hydrous ethanol vapors in an energy efficient manner. Spherical micropearl cassava starch exhibit a higher adsorption capacity than corn grits of the same size and may be a viable replacement for ground corn. Adsorption equilibrium curves, BET surface area measurements, and SEM images provide an explanation for the enhanced performance of cassava micropearls based on particle architecture and the surface area available to water molecules. The SEM images show that the micropearls form a core–shell structure with pregel starch acting as the scaffold that holds starch granules in an outer layer. This layer determines the BET surface area and the measured equilibrium adsorption capacity. The core–shell microstructure results in a shortened diffusion path-length and enhanced adsorption rates. These microstructural and operational characteristics provide a template for microfabrication of enhanced capacity starch based spheri.
Symposium Y: Gan and Related Alloys MOCVD AlGaN/GaN HFETs on Si: Challenges and Issues

AlGaN/GaN based high power, high frequency high electron mobility transistors (HEMTs) have been in development for over a decade. Although much progress has been made, AlGaN/GaN HEMT technology has yet to be commercialized. The choice of silicon as the substrate for the growth of GaN-based epi layers will enable commercialization of AlGaN/GaN based HEMTs, because of its maturity, scalability, reproducibility and economy. One of the epitaxial issues pertaining to the growth of AlGaN/GaN HEMTs on Si is the understanding of parasitic losses that can adversely impact the RF device performance. The effect of the III-N MOCVD process on the resistivity of the Si substrate, and correlations between the Si substrate resistivity and AlGaN/GaN HEMT RF characteristics are presented. Optimization of the MOCVD growth process led to a reduction in parasitic doping of the Si substrate. This resulted in the following improvements: (a) small signal gain increased from 17 to 21dB, (b) the cut-off frequency increased from 7 to 11GHz and (c) the maximum frequency of oscillation improved from 12 to 20GHz. This optimized process will enhance performance of AlGaN/GaN HEMTs at higher frequencies.
Bifunctional Nickel Phosphide Nanocatalysts Supported on Carbon Fiber Paper for Highly Efficient and Stable Overall Water Splitting

Self‐supported electrodes comprising carbon fiber paper (CP) integrated with bifunctional nickel phosphide (Ni‐P) electrocatalysts are fabricated by electrodeposition of Ni on functionalized CP, followed by a convenient one‐step phosphorization treatment in phosphorus vapor at 500 °C. The as‐fabricated CP@Ni‐P electrode exhibits excellent electrocatalytic performance toward hydrogen evolution in both acidic and alkaline solutions, with only small overpotentials of 162 and 250 mV, respectively, attaining a cathodic current density of 100 mA cm−2. Furthermore, the CP@Ni‐P electrode also exhibits superior catalytic performance toward oxygen evolution reaction (OER). An exceptionally high OER current of 50.4 mA cm−2 is achieved at an overpotential of 0.3 V in 1.0 m KOH. The electrode can sustain 10 mA cm−2 for 180 h with only negligible degradation, showing outstanding durability. Detailed microstructural and compositional studies reveal that upon OER in alkaline solution the surface Ni‐P is transformed to NiO covered with a thin Ni(OH)x layer, forming a Ni‐P/NiO/Ni(OH)x heterojunction, which presumably enhances the electrocatalytic performance for OER. Given the well‐defined bifunctionality, a full alkaline electrolyzer is constructed using two identical CP@Ni‐P electrodes as cathode and anode, respectively, which can realize overall water splitting with efficiency as high as 91.0% at 10 mA cm−2 for 100 h.
Land-Use Attitudes and Local Election Choice: Estimating Effects of Land-Use Attitudes on Municipal Electoral Choice

Land-Use Attitudes and Local Election Choice: Estimating Effects of Land-Use Attitudes on Municipal Electoral Choices by Scott R. Dresher, Master of Science Utah State University, 2020 Major Professor: Dr. Damon Cann Department: Political Science The purpose of the study was to predict voter behavior and how candidate land-use attitudes compare with party identification in influencing vote choice in a local election scenario. Data for the study was generated using a conjoint experiment embedded within a survey administered to multiple Utah State University freshman courses (N=379). Respondent demographics, political ideology, land-use attitudes, and candidate choice are recorded through survey answers. Additional respondent treatment is provided through conjoint experimental design in differentiating order and levels of information. Using factor analysis, respondent answers to six land-use attitude questions generated a land-use factor score. Logistic regression analysis was employed to predict vote choice incorporating variables generated through respondent answers to surveys. Given the nature of conjoint experimental design, logistic regression analysis required two threeway interactions for accurate interpretation of coefficient results. Interactions by nature lead to non-intuitive regression results, so interpretations of significance are best visualized through graphical representation of predicted probabilities. Logistic regression
The Moderating Effect of Moral Identity on the Relationship between Emotional Exhaustion and Budget Slack

Emotional exhaustion, as a kind of exhausted negative psychological state, have an impact on individual work behavior, job performance, turnover rate, job satisfaction and so on. In the practice, the negative impact of budget slack on budget management cannot be ignored. The existence of budget slack makes the budget fail to achieve its proper function, which violates the planning function of the budget. The budget slack conceals the real resource demand, profitability and financial situation of the enterprise, which makes it impossi-ble for the owner to make an accurate judgment and decision. However, the impact of emotional exhaustion on budget slack is unknown. This paper introduces the psychological state of emotional exhaustion into budget research and explores the causes of budget slack from internal psychology. Our results imply that when subordinates are emotionally exhausted, they tend to give up their insistence on honesty and prefer a relaxed budget. In addition, the moral identity negatively moderates the relationship between emotional exhaustion and budget slack of subordinate.
Increasing lipid productivity in Chlamydomonas by engineering lipid catabolism using the CRISPR-Cas9 system

Background Currently, most of the attention in renewable energy industry is focused on the development of alternative, sustainable energy sources. Microalgae are a promising feedstock for biofuel production in response to the energy crisis. The use of metabolic engineering to improve yields of biofuel-related lipid components in microalgae, without affecting cell growth, is now a promising approach to develop more sustainable energy sources and to make this approach more economically feasible. Results The CRISPR-Cas9 system was successfully applied to generate a target-speciﬁc knockout of the ELT gene in Chlamydomonas reinhardtii . The target gene encodes an enzyme involved in lipid catabolism, in which the knockout phenotype impacts fatty acid degradation. As a result, the knockout mutants show up to 28.52% increased total lipid accumulation in comparison with the wild-type strain. This is also accompanied by a shift in the fatty acid composition with an increase of up to 27.2% in the C18:1 proportion. These changes do not signiﬁcantly impact cell growth. Conclusion This study provides useful insights for the improvement of the oleaginous microalgae strain for biodiesel production. The acquired elt mutants showed improved lipid accumulation and productivity without compromising the growth rate.
EVALUATION OF THE PANBIO SARS-COV-2 RAPID ANTIGEN DETECTION TEST IN THE BAHAMAS

Identification and isolation of persons infected with SARS-COV-2 are key mitigation strategies in the current pandemic, and rapid antigen detection tests (RADTs) offer the promise of decreased turnaround time to diagnosis when compared with gold standard RT-PCR testing. We evaluated the analytical performance of the Abbott Panbio RADT on nasopharyngeal samples stored at the Ministry of Health National Reference Lab in Nassau, Bahamas. The Panbio demonstrated a test sensitivity of 94% and a specificity of 100% on 50 PCR negative samples and 50 samples presumed to be infectious based on having PCR cycle threshold values below 30. Additionally, in our examination of operator results there was low interpersonal variation (1%) among three blind operators and significant correlation between sample Ct value and perceived signal strength on the RADT device. However, three PCR positive samples below Ct 30 were misdiagnosed by RADT, including one sample with Ct value less than 20. These results support the use of the Panbio in symptomatic persons to detect active SARS-COV-2 infections, with the caveat that RADT-negative samples should be confirmed by RT-PCR.
Effect of "motivational interviewing" and "information, motivation and behavioral skills” on choosing the mode of delivery in pregnant women: A study protocol for a randomized controlled trial

Background Caesarean Section is an important surgical procedure, when normal vaginal delivery imposes a risk to mother and/or baby. The World Health Organization states the ideal rate for Cesarean section to be between 10% and 15% of all births. Even though, in recent decades, the rate has been increased dramatically worldwide. This paper explains the protocol of a randomized controlled trial that aims to compare the effect of "motivational interviewing" and "information, motivation and behavioral skills” on choosing mode of delivery in pregnant women. Methods/design A four-armed, parallel-design randomized controlled trial will be conducted on pregnant women. One hundred and twenty women will be randomly assigned to three intervention and one control groups. The inclusion criteria include being literate, gestational age from 24 to 32 weeks, being able to speak Persian, having no complications in the current pregnancy, having no indications for CS, and having enough time to participate in the intervention. The most important outcomes of the study include women’s intention to undergo Cesarean section, women’s self-efficacy, and usability of mobile application by the participants, and mode of delivery. Discussion The interventions of this protocol have been programmed to reduce unnecessary Cesarean section. Therefore, after running the protocol, findings may contribute to a rise in normal vaginal delivery. If proven to have an appropriate impact, it may be extended for use in national Cesarean section plans.
Kinetic Parameter Estimation in Peroxide Initiated Degradation of Polypropylene

ABSTRACT The chain scission rate constant and the initiator decomposition efficiency are very important kinetic parameters in the chemically initiated degradation of polypropylene. These two kinetic parameters have been estimated using both deterministic and stochastic modelling procedures. To relate the chain scission rate constant to measurable properties of this system in a deterministic model, the stationary state hypothesis for the peroxide radical concentration has been relaxed and a new model relating both the overall chain scission rate constant and the peroxide decomposition efficiency to three average molecular weights has been formulated. Using Monte Carlo simulation results, the sensitivity of the kinetic parameter posterior probability surface to the reaction time has been investigated. The results indicate that there is an optimum time for collection of experimental data in the reaction system so that the estimated values of the kinetic parameters are more reliable. Based on simulated data a.
Development and validation of chemistry agnostic flow battery cost performance model and application to nonaqueous electrolyte systems

A chemistry agnostic cost performance model is described for a nonaqueous flow battery. The model predicts flow battery performance by estimating the active reaction zone thickness at each electrode as a function of current density, state of charge, and flow rate using measured data for electrode kinetics, electrolyte conductivity, and electrode‐specific surface area. Validation of the model is conducted using a 4 kW stack data at various current densities and flow rates. This model is used to estimate the performance of a nonaqueous flow battery with electrode and electrolyte properties used from the literature. The optimized cost for this system is estimated for various power and energy levels using component costs provided by vendors. The model allows optimization of design parameters such as electrode thickness, area, flow path design, and operating parameters such as power density, flow rate, and operating SOC range for various application duty cycles. A parametric analysis is done to identify components and electrode/electrolyte properties with the highest impact on system cost for various application durations. A pathway to 100$ kW h−1 for the storage system is identified. Copyright © 2016 John Wiley & Sons, Ltd.
A Study of Excited State Atoms in Cold Atom Traps and a test of the Reif Model to Determine Trap Depth.

The motivation, theory and applications of atomic traps are briefly reviewed before delving into the primary motivation for the research: the disagreement between theory and experiment for the calculation of trap loss rate constants (< σv >) for Rubidium Magneto-Optical Traps. We use a pure magnetic trap to calibrate for the density of background Rubidium in our system while varying this density and measuring the loss and loading rates for multiple magnetic traps for which the trap depth has been measured previously. This variation of density allows us to infer < σv >, a quantity whose behaviour we attempt to explain in relation to the the excited state fraction of the trapped atoms. We find a strong correlation between the excited state fraction and the loss rate constant which we are, unfortunately, unable to quantify due to data quality issues. In addition to this study, experimental evidence for the confirmation of the Reif Model is provided as well as a new method (based on this model) for measuring the depth of a magneto-optical trap.
Assessment of Carbon Dioxide Dissociation as a New Route for Syngas Production: A Comparative Review and Potential of Plasma-Based Technologies

Coal gasification and natural gas reforming are regarded as mature technologies for syngas production. These technologies are however highly polluting in terms of greenhouse gas emissions, mainly carbon dioxide. Natural gas reforming is considered cleaner than coal gasification but has some disadvantages in terms of higher plant maintenance and processing costs. It utilizes catalysts that are prone to poisoning, are costly, and require regular regeneration. In mitigation of these issues, plasma-based CO2 dissociation technologies could probably offer a new alternative for syngas production. The plasma-based technologies are more compact, have faster response and reaction times, and are relatively cheaper compared to conventional gasification and reforming. Assuming that electricity is produced by a low carbon emitting (renewable or nuclear) power plant, a comparative review of CO2 dissociation technology for syngas production shows that CO2 dissociation can be competitive from an environmental point of vi.
A Highly Sensitive Hybrid Film Sensor for Voltammetric Detection of Calcium Antagonist Cilnidipine

A highly sensitive and selective sensor based on th e synergistic effect of ZnO nanoparticles and multi walled carbon nanotubes (MWCNTs) for voltammetric d etection of calcium antagonist cilnidipine has been developed. The fabricated sensor was characterized by scanning electron microscopy, electrochemical impedance spectroscopy, chronocoulometry, square wa v voltammetry and cyclic voltammetry. The proposed electrochemical sensor exhibited good analytical pe rformance including high sensitivity and selectivit y as compared to multiwalled carbon nanotubes modified ( MWCNTs/GCE), zinc oxide nanoparticle modified (ZnO/GCE) and bare glassy carbon electrode (GCE). F abrication of hybrid film increased surface area an d active sites for electron transfer, thus enhancing the sensitivity of the fabricated sensor. The devel op d sensor was successfully applied for the electroanalytical determination of cilnidipine in its pharmaceutical formulation. Under optimal conditions, the peak current is linea r to cilnidipine concentration ranging from 5 ng mL -1 to 5 μg mL. The results of the study showed that the proposed el ctrochemical method is simple, rapid, precise a nd accurate, which is very useful for the routine anal ysis of cilnidipine in its pharmaceutical formulati on. Figure: Linearity of square-wave voltammetric peak current of cilnidipine at different concentrations on ZnOMWCNTs/GCE (pH 7.0). Inset: Plot of peak current, i p vs cilnidipine concentration. Abstract #2480, 224th ECS Meeting, © 2013 The Electrochemical Society
Pathomechanisms and possible interventions in myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS).

Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a disease with unknown etiology, no validated specific and sensitive biomarker, and no standard approved effective treatment. ME/CFS has a profound impact on the quality of life of both patients and caregivers and entails high costs for society. The severity varies among patients who are able to participate to some extent in social life (mild), those who are mainly housebound (moderate) or bedridden (severe), and the very severely ill who are completely dependent on assistance for all daily living tasks, such as feeding or turning around in bed. Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) often starts in previously healthy individuals after an infection, the most common being infectious mononucleosis (EBV). It is more frequent in women and influenced by genetic predisposition. The main symptoms are postexertional malaise (PEM), fatigue, orthostatic intolerance, cognitive disturbances, sleep problems with inadequate restitution after rest, sensory hypersensitivity with pain, and symptoms related to autonomic and immune dysfunction. The prevalence is 0.1% to 0.8%, and ME/CFS must be distinguished from general fatigue, which is much more common in the population. Historically, there has been limited scientific interest in ME/CFS. However, research efforts have increased in the last decade. Although this has led to different hypotheses, a firmly established pathomechanism is lacking. Herein, we suggest a framework model for the initiation and [. ] Viewpoint