Miracle-dz/UniFAR-FTUs huggingface dataset:
Kualitas Audit Memediasi Pengaruh Independensi Auditor dan Komite Audit terhadap Kualitas Laba

The purpose of this study is to analyze audit quality mediating the effect of the independence auditors and audit committees on earnings quality in manufacturing companies listed on the Indonesia Stock Exchange 2015-2019. This research is a causality study with a quantitative approach. The research population was 144 companies which were selected to be 68 company samples. Dependent variable is earnings quality and the independent variable are independence of the auditor and the audit commitee and intervening variable is audit quality. This study uses path analysis. The results of the study found that audit quality did not mediate the effects of auditor and audit committee independence on earnings quality. The study found that supervision carried out by independent auditors and quality audits could hinder earnings management thereby increasing earnings quality. The audit committee was formed by the company as a formality to comply with government regulations. Keywords: Earnings Quality; Audit Quality; Auditor Independence; Audit Committee.
Impact of protectants on drying kinetics and viability of microwave freeze-driedLactobacillus paracaseissp.paracaseiF19

The three carbohydrates sorbitol, trehalose, and maltodextrin, differing in molecular weight, were investigated as excipients to enhance survival of the probiotic strain Lactobacillus paracasei ssp. paracasei F19 during a microwave‐assisted freeze‐drying process. This technique was further compared to conventional freeze‐drying, where thermal energy is supplied by heat conduction instead of radiant energy. Survival rates revealed similar values for both techniques after drying without protectants (~10%). While addition of maltodextrin and trehalose led to a two‐ up to threefold increase in survival for both dryings, sorbitol containing samples showed the greatest difference between the two techniques: 65% after freeze‐drying versus 12% after microwave freeze‐drying. Though protection mechanisms were generally found to be equal to conventional lyophilization, microwaves are likely to induce vibrations in the hydrophilic sugars. Thus, not all protectants which are applicable in freeze‐drying, can be applied in microwave freeze‐drying to enhance bacterial viability. PRACTICAL APPLICATIONS: A new drying process for the efficient preservation of bacterial cultures, such as lactic acid bacteria, was investigated. Microwave freeze‐drying is a much faster and less costly process than conventional freeze‐drying leading to equal product qualities and reducing the problem that drying often is the bottleneck in industrial biotechnological processes. However, no work on microwave freeze‐drying of bacterial cultures has been published so far. Knowledge on the impact of protectants on the survival of the cultures is a crucial aspect to make microwave freeze‐drying applicable in industrial processes. The selection of proper protectants is important to achieve high survival after drying and during storage.
Impedance Study on Estimating Electrochemical Mechanisms in a Polymer Electrolyte Fuel Cell During Gradual Water Accumulation

In this study, the change of electrochemical parameters during the gradual water accumulation of a polymer electrolyte fuel cell (PEFC) are estimated using electrochemical impedance spectroscopy (EIS) measurements and an impedance model based on electrode theory during a two‐step oxygen reduction reaction (ORR). EIS measurements were carried out in a 5 cm2 H2/O2 PEFC operated under a dead‐ended configuration of the gas reactants and during gradual accumulation of water. Kramers‐Kronig evaluation demonstrated that the EIS measurements comply with stability and linearity properties and the inductive loops featured at low frequencies are attributed to electrochemical mechanisms within the PEFC and not to instability during gradual water accumulation. The impedance model has been reported in a previous study and simulates inductive loops at low frequencies which are attributed to platinum oxide formation during the ORR. The estimated parameters obtained from this EIS‐modeling analysis can provide an insight into the decrease in PEFC performance during flooding conditions. A further qualitative analysis considering the effect of long‐term water accumulation on the oxygen‐reduction charge transfer resistance is discussed. It is possible to have an insight into the physical mechanisms of the PEFC, by combining different experimental techniques and fundamental theory in a complimentary manner.
Performance of Coloured Broilers fed with Organic Source of Zinc (Zn) and Manganese (Mn)

An experiment was conducted to evaluate the effect of feeding organic source of Zn and Mn on growth performance of coloured broilers. Three hundred and twenty coloured broilers were assigned to four dietary treatments with four replicates of twenty broilers each. The experimental birds were fed one of the following four diets. T1-Basal diet (Control) with 100% supplementation of Zn and Mn from inorganic source, T2Basal diet with 100% supplementation of Zn and Mn from organic source, T3Basal diet with 80% supplementation of Zn and Mn from organic source and T4 Basal diet with 70% supplementation of Zn and Mn from organic source. The inorganic supplementation was ZnSO4 and MnSO4. The experimental diets were fed to birds for 42 days of age. Data was collected for weekly cumulative body weight, weekly cumulative feed consumption and FCR. Among the organic source fed groups 100 per cent replacement of organic source of Zn and Mn (T2) showed higher body weight (1375 g) followed by T4 (1329 g), T3 (1326 g) and Control T1(1252 g). Among the organic source fed groups 100 per cent replacement of organic source of Zn and Mn (T2) showed better FCR (2.09) followed by T1(2.15), T3 (2.26) and T4 (2.30). Thus organic minerals can be included at much lower levels in the diet than the current recommendations for inorganic minerals, without any negative affect on broiler performance.
Triboelectric Nanogenerator Networks Integrated with Power Management Module for Water Wave Energy Harvesting

Ocean waves are one of the most promising renewable energy sources for large‐scope applications. Recently, triboelectric nanogenerator (TENG) network has been demonstrated to effectively harvest water wave energy possibly toward large‐scale blue energy. However, the absence of effective power management severely restricts the practicability of TENGs. In this work, a hexagonal TENG network consisting of spherical TENG units based on spring‐assisted multilayered structure, integrated with a power management module (PMM), is constructed for harvesting water wave energy. The output performance of the TENG network is found to be determined by water wave frequencies and amplitudes, as well as the wave type. Moreover, with the implemented PMM, the TENG network could output a steady and continuous direct current (DC) voltage on the load resistance, and the stored energy is dramatically improved by up to 96 times for charging a capacitor. The TENG network integrated with the PMM is also applied to effectively power a digital thermometer and a wireless transmitter. The thermometer can constantly measure the water temperature with the water wave motions, and the transmitter can send signals that enable an alarm to go off once every 10 s. This study extends the application of the power management module in the water wave energy harvesting.
Effect of Concentration of Citric Acid on The Rheological Properties of Methylcellulose Hydrogels

Amaç: Bu çalışmada, sodyum sitrat tuzunun (SC) ısıya duyarlı hidrojellerin reolojik özelliklerine etkisi incelenmiştir. Gereç ve Yöntem: Hidrojeller 8 ağırlık oranında metilselüloz ve 2,5 ağırlık oranında jelatine farklı oranlarda SC ilave ederek hazırlanmıştır. Daha sonra 1, 2 ve 3 ağırlık oranında SC eklenen örnekler üretilmiştir. Gelişme: SC oranının jelleşme sıcaklığına etkisi test tüpü çevirme yöntemiyle analiz edilmiştir. Sentezlenen hidrojeller Fourier Dönüşümlü Kızılötesi Spektroskopi ve Taramalı Elektron Mikroskobu ile analiz edilmiştir. Hidrojellerin zamana ve sıcaklığa dayalı, viskoz modülü (G’’), depo modülü (G’) ve kompleks vizkozite değerleri salınımlı reometre cihazı ile ölçülmüştür. G’ ve vizkozite değerlerindeki ani artış jelleşme sıcaklığı ve süresini göstermektedir. Bulgular: Çalışmada elde edilen bulgular SC ekleyerek jelleşme sıcaklığının 32 °C’den 27 °C’ye düştüğünü göstermektedir. Jelleşme süresinde ise örnek grupları arasında farklılık görülmemektedir. Kompleks viskozitenin ve jel kuvvetinin ise SC ilave edildiğinde arttığı gözlemlenmiştir. Sonuç: Metilselüloz bazlı hidrojellere sitrik asit ilave edilmesi, hidrojellerin reolojik özelliklerini belirgin olarak etkilemektedir. Anahtar Kelimeler: Sitrik Asit, Metilselüloz, Hidrojeller, Reolojik Özellikler Öz Objectives: In this study, the influence of sodium citrate dehydrates (SC) salts on the rheological properties of a thermoresponsive hydrogel was investigated. Materials and Methods: The hydrogel was prepared by combining 8 w/v % methylcellulose (MC) and 2.5 w/v % gelatin with various SC concentrations. Synthesized hydrogels were characterized by using Fourier Transform Infrared Spectroscopy and Scanning Electron Microscopy. Subsequently, the effect of 1, 2 and 3 w/v % of SC on the gelation temperature was investigated by test tube tilting method. Time and temperature dependent variations of loss (G’’) and storage (G’) modulus and complex viscosity (Pa.s) of hydrogels were investigated by using oscillation rheometer. The sharp increase of G’ and Pa.s indicates the gelation temperature and gelation time. Results: The results show that the addition of SC to the MC/gelatin blend decreased the gelation temperature from 32 °C to ~27 °C. There are no significant differences between gelation time of hydrogel samples for the prepared concentrations. However, the complex viscosity and gel strength clearly increased by incorporation of SC salts. Conclusion: Overall, the results suggest that incorporation of citric acid to methylcellulose based hydrogels significantly affects their rheological properties.
Enantioselective Synthesis of Chiral Medium-Sized Cyclic Compounds via Tandem Cycloaddition/Cope Rearrangement Strategy

The nine-membered ring-bearing bicyclo[5.2. 2]tetrahydrooxonines frameworks have enantioselectively been constructed via a tandem [3 + 2] cycloaddition/Cope rearrangement reaction of vinylethylene carbonates (VECs) with coumalates or pyrones. Under mild conditions, palladium-catalyzed asymmetric tandem reaction of various substituted VECs and coumalates or pyrones proceeds smoothly to produce the corresponding medium-sized heterocyclic compounds in high yields with very high enantioselectivities. Moreover, the reaction on the gram scale and further diverse transformations of the products were workable. The reaction mechanism was investigated through control experiments and DFT calculations, which show the reaction proceeds via a tandem [3 + 2] cycloaddition/Cope rearrangement pathway rather than via a [5 + 4] cycloaddition pathway.
Solar air drying for innovative Opuntia ficus-indica cladode dehydration

Providing a case study of general applicability in all world's semi-arid regions where the plant is increasingly harvested, we describe the use and outcomes of solar air heating and ventilation coupled to a conventional kiln to dehydrate Opuntia ficus-indica cladodes. For the first time, the dried cladodes and the ground dehydrated ‘Nopal’ cladodes retain their natural green-yellow color. New applications to functionalize foodstuff and to formulate nutraceutical, personal care and cosmetic products of even higher efficacy and broader scope are anticipated.
High‐Performance Perovskite Solar Cells with Enhanced Environmental Stability Based on a (p‐FC6H4C2H4NH3)2[PbI4] Capping Layer

Supported by the density functional theory (DFT) calculations, for the first time, a fluorinated aromatic cation, 2‐(4‐fluorophenyl)ethyl ammonium iodide (FPEAI), is introduced to grow in situ a low dimensional perovskite layer atop 3D perovskite film with excess PbI2. The resulted (p‐FC6H4C2H4NH3)2[PbI4] perovskite functions as a protective capping layer to protect the 3D perovskite from moisture. In the meantime, the thin layer facilitates charge transfer at the interfaces, thereby reducing the nonradiative recombination pathways. Laser scanning confocal microscopy unveils visually the distribution of the 2D perovskite layer on top of the 3D perovskite. When employing the 3D–2D perovskite as the absorbing layer in the photovoltaic cells, a high power conversion efficiency of 20.54% is realized. Superior device performance and moisture stability are observed with the modified perovskite over the whole stability test period.
Effect of salt stress on growth, electrolyte leakage, Na+ and K+ content in selected plant species

This study monitors the effect of salt stress induced by a NaCl solution (0 – deionized water, 50, 100, 200, 300 mmol/L) in lettuce (Lactuca sativa L. cv. Orion), New Zealand spinach (Tetragonia tetragonoides (Pall) Kuntze) and common purslane (Portulaca oleracea L. cv. Green Purslane) over the course of 50 days. The diverse reactions of these monitored species to salt stress are well apparent from the results. Lettuce proved as the most sensitive to salt stress, showing a significant reduction of dry weight, where even lower concentrations of salt affected membrane stability through increased electrolyte leakage value and an imbalance in the content of Na+ and K+, observed in the form of lower ratios of K+/Na+. In case of T. tetragonoides, lower salt concentrations positively affected growth and this species appears to particularly accumulate sodium. In case of P. oleracea no significant reduction of dry weight took place with the increasing concentration of NaCl and a naturally high content of potassium contributed to maintaining a favourable ratio of K+/Na+ even at higher salt concentrations, which is one of the prerequisites of salt-stress tolerance.
Mitigating technostress in new knowledge workers through perceived self-efficacy

Andreou, Spiros Mitigating Technostress in New Knowledge Workers Through Perceived SelfEfficacy Jyväskylä: University of Jyväskylä, 2019, 82 p. Information Systems Science, Master’s Thesis Supervisor: Salo, Markus The aim of this Master’s Thesis is to examine the relationship between technostress and perceived self-efficacy in new knowledge workers and how it is manifested in the beginning of the employment. Technostress is the darker outcome of the widespread of technology. Since the rapid advancement of technology and its implementation in today’s workplaces, technology has become a vital tool in everyday work. This increase of technology exposes new knowledge workers under a lot of stress and pressure to learn and use technologies effectively. New knowledge workers may have to learn technologies rapidly upon employment. Perceived self-efficacy has shown promising signs in estimating one’s ability cope with stress in prior research. Therefore, perceived self-efficacy provides a lucrative base to research further. This research will provide new and valuable information for new knowledge worker introduction to technology. The research was conducted by first forming a literature review. After this, an empirical qualitative research was conducted using semistructured interviews. The interviews were conducted with employees working in an international technology organization based in Finland, working in the health and wellness industry with customers in more than 40 countries. According to study, perceived self-efficacy does not have a self-explanatory relationship with technostress in new knowledge workers, but generally higher levels of perceived self-efficacy can effectively mitigate technostress in new knowledge workers. The research proposes a new model for new knowledge worker introduction to technology.
Production of Volatile Compounds by Lactococcus lactis sp. Strain at Different Growth Phases

the statistical of the managed the analyses of the study. FAF the literature searches. Aims: The present study aimed at identifying secondary Produced compounds Results: Results showed that lag phase was extended for about six h. Exponential phase (log phase) lasted for the next 6 to 18 h, stationary phase 18 to 40 h, and decline phase started after 40 to 48 h. GC-MS analysis of the volatile compounds resulted in the identification of 18, 20, 18, and 17 compounds respectively during the lag phase, the logarithmic phase, the stationary phase and the decline phase. Out of the total of 50 volatiles compounds identified, 4 compounds viz . , Benzyl alcohol; Pyrrolo[1,2-a]pyrazine-1,4-dione, hexahydro-3-(2-methyl propyl)-; 5-Isopropylidene-3,3-dimethyl-dihydrofuran-2-one, and Cyclohexane, 1,3,5-trimethyl-2-octadecyl-were present at different peaks area in all growth phases of the cultured strain. Numerous of these volatile compounds produced revealed to possess biological activities. Conclusion: The incubation period affected the production of volatile compounds. L. lactis was observed to produce wide-ranging bioactive compounds for human therapeutic applications as well as various industrial applications. Also, many secondary metabolites were produced by the strain at the logarithmic phase.
Identification and characterization of pigmented photoreceptor-producing microorganisms using FTIR spectroscopy

The identification, differentiation and classification of microorganisms have been subjects of research for many years. Recently, Fourier transform infrared (FTIR) spectroscopy techniques have gained attention in the characterization and classification of microorganisms based on biochemical profiles and cell structure characteristics. In the present study, the characterization and differentiation of pigmented photoreceptor-producing microorganisms using FTIR spectroscopy was carried out. For this purpose some microorganisms were isolated from different environments, of which three photoreceptor-producing bacteria were selected to limit the scope of the study to one phenotypic characteristic. Genomic relatedness among the isolated strains was investigated and it was shown that these strains had similarities to the Kushneria marisflavi, Halobacillus halophilus and Halobacillus faecis species. In addition, Halobacterium salinarum was investigated as a typical representative photoreceptor-producing archaeon. Spectra (500-4000 cm-1) of the intact cells and crude extracted pigments were recorded on an FTIR spectrometer and compared with each other. The similarities among the spectra were evaluated using hierarchical cluster analysis and compared with the phylogenic tree based on genomic study. Our results demonstrate that hierarchical clustering based on extracted pigments shows separation of strains more distinctly than those based on intact cells. The results of the present study suggest that FTIR analysis of bacterial pigments is an easy and economical technique comparable to other phylogenetic markers, for the differentiation and characterization of bacteria.
Biofilm antimicrobial susceptibility pattern for selected antimicrobial agents against planktonic and sessile cells of clinical isolates of staphylococci using MICs, BICs and MBECs

Background and Objective: The most important tool which helps bacteria to tolerate survival in unwanted conditions and resistance to new generations of antimicrobial agents is biofilm formation through quorum sensing. This study aimed to detect biofilm formation using study isolates of staphylococci quantitatively. Further, concerning minimal inhibitory concentration (MICs), biofilm inhibitory concentration (BICs), and minimum biofilm eradication concentrations (MBECs), to determine biofilm antimicrobial susceptibility test for selected antimicrobial agents against the study isolates. Patients and Methods: A total of 28 catheter urine specimens and wound swabs belonged to 32 patients admitted to Ramadi Teaching Hospital during the period from February to June 2009 were included in this study. Quantitative assay by a spectrophotometric method with ELISA reader was achieved. Planktonic and biofilm antimicrobial susceptibility tests for planktonic and sessile cells performed. Results: Out of 12 (37.5%) isolates of Staphylococcus epidermidis and 20 (62.5%) isolates of Staphylococcus aureus, biofilms were produced in 100% of all study isolates and produced biofilm actively in the glucose supplemented media. Our result revealed that MICs were 2.1 ± 1.2 μg/ml, 46.7 ± 18.6 μg/ml, and 3.25 ± 1.86 μg/ml for ciprofloxacin, piperacillin, and amikacin, respectively, against logarithmic phase planktonic cells of Staphylococcus spp. Furthermore, BICs and MBECs for the selected antimicrobial agents were reached ×50–100 folds higher than MICs to inhibit and eradicate staphylococcal biofilm. Conclusion: All study isolates of staphylococci produced biofilm quantitatively in glucose supplemented media. Furthermore, in biofilm antimicrobial susceptibility test, the biofilm producing isolate isolates of staphylococci required ×50–100 fold higher than those values for MICs for the same strains with the planktonic state to inhibit and remove bacterial biofilm from the surface of catheters.
OBTAINING OF COMPLEX NITROGEN-POTASSIUM AND NITROGEN-MAGNESIUM FERTILIZERS FROM NON-STANDARD FRACTIONS OF CARBAMIDE

The process of obtaining NK and NMg-fertilizers of various compositions from carbamide and finecrystalline potassium sulfate or carbamide and caustic magnesite powder has been optimized. The commodity properties (qualitative composition, absorbability, strength) of the obtained granulated NK and NMg fertilizers have been studied. By the methods of X-ray phase analysis and IR spectroscopy, the possibility of undesirable chemical reactions during the fusion of potassium sulfate or magnesium oxide with carbamide in fertilizer mixture melt has been investigated.
Re-entrant direct hexagonal phases in a lyotropic system of surfactant induced by an ionic liquid

ABSTRACT In the present study, an ionic liquid (IL), known as green solvent, 1-butyl-3-methylimidazolium tetrafluoroborate (BMIM-BF4) with four carbons in the hydrophobic chain (C-4) has been used as an additive to modify the self-assembled aggregates of an anionic surfactant sodium dodecyl sulfate (SDS) and then the evolution of the liquid crystalline phases has been investigated. Small angle synchrotron x-ray diffraction study has revealed an unprecedented phase sequence where a hexagonal phase (HI) of direct cylindrical micelles is observed to evolve to another hexagonal phase (HII) of, again, direct cylindrical micelles with a lamellar phase () as the intermediate. The rheological data and the theoretical calculations have confirmed the phases. To understand such a phase behaviour of the system, the work is extended by considering the ionic liquids with the same head group but of shorter (C-2) and longer (C-10) hydrocarbon chains compared to BMIM-BF4. While the shorter chain IL causes the hexagonal phase to form rectangular (R) phase, the longer chain is observed to induce the lamellar phase (). The molecular mechanism of appearance of such different phases has been discussed. Graphical Abstract