Miracle-dz/UniFAR-FTUs huggingface dataset:
Couplage de technologies membranaires pour la production d'extraits stables de bissap (Hibiscus sabdariffa L., Malvaceae)

Des nectars d'Hibiscus sabdariffa L. (bissap) sont fabriques par infusion ou decoction des calices de cette plante dans l'eau. Le developpement d'un procede d'eco-extraction, incluant des technologies couplees (MicroFiltration Tangentielle : MFT et Osmose Inverse : OI) a permis de fabriquer a l'echelle pilote des extraits concentres d'une plus grande surete (qualite et hygiene). L'objet de ce travail etait d'evaluer la stabilite de ces extraits concentres. Des membranes industrielles en ceramique pour la MFT et en polymere organique pour l'OI, ont ete utilisees respectivement pour la clarification et la concentration des extraits polyphenoliques. Les calices seches ont ete extraits dans de grands volumes d'eau (50-250 l) suivant un ratio optimise R = 1/100 (R = masse du vegetal en kg/ volume d'eau en l). Le macerât (0,3-0,4°Brix) prefiltre a l'aide de tissu en nylon, est d'abord clarifie par MFT avec une membrane industrielle multicanale (P19-60, 0,2 μm de diametre de pore, S = 0,304 m2 surface filtrante), puis concentre par OI avec une membrane industrielle (SW-30, 0,1 nm de diametre de pore, S = 2m2). Les concentres finaux titrent a 10-20°Brix avec des taux moyens de matieres seches de l'ordre de 16 %. Ces concentres exposes en atmosphere ambiante dans un conditionnement limitant la penetration des rayons solaires, restent stables et bacteriologiquement sains pendant au moins 8 mois (duree de l'experience) comparativement aux extraits prepares de facon traditionnelle qui presentent une charge microbienne importante (GAM, levures, moisissures) limitant par consequent leur stabilite. (Resume d'auteur)
The potential of cellulose-degrading fungi at various peat maturities in Teluk Bakung Peat Area, Kubu Raya District, Indonesia

Abstract. Khotimah S, Suharjono, Ardyati T, Nuraini Y. 2021. The potential of cellulose-degrading fungi at various peat maturities in Teluk Bakung Peat Area, Kubu Raya District, Indonesia. Biodiversitas 22: 1981-1990. Fungi play important roles in degrading cellulose in the maturation process of peat. This study aimed to evaluate the potential of cellulose-degrading fungi at various peat maturities in the forest. Peat soil samples were collected from Teluk Bakung Village, Kubu Raya District, West Kalimantan using a random sampling method. Peat soil samples were obtained at six sampling sites in forests and palm oil plantations. The fungi were cultured by the pour plate method on 1% CMC media. The cellulose-degrading fungi were determined based on a clear zone formation around the colony in CMC agar media. The cellulolytic fungal population in the fibric, hemic, and sapric peats of the secondary forest were 3.2 × 103, 4.6 × 103, and 5.6 × 103 CFU/g, respectively, whereas at fibric, hemic, and sapric of the shrubs were 5.6 x 104, 3.9 × 105 and 4.7 × 104 CFU/g, respectively. Among the 25 cellulolytic fungal isolates, 5 isolates (HS1.5, HS3.4.1, HB2.2, SS2.4.1, and SB2.5.1) showed high average clear zone diameter (21-28 mm). The HS3.4. 1 and HS1.5 isolates had cellulase enzyme activity of 132.16 and 127.3 U/mL, respectively. These isolates can grow and degrade cellulose at 30°C to 35°C and pH of 2, 3, 4, and 5. The HS3.4. 1 and HS1.5 isolate were closely related to Penicillium citrinum based on the phylogenetic tree analysis.
THE IMPACT OF EDUCATION ON KNOWLEDGE, ATTITUDE AND PRACTICE OF FOOD VENDORS IN ABIA STATE NIGERIA

Educational intervention on food industry personnel on hygiene has been recommended as a means of improving food handling practices and food safety. This is because human handling errors are responsible for the major outbreaks of food poisoning and food-borne illnesses in developing and developed countries. The study aim toassess the impact of education on knowledge, attitude and practice of food vendors in study Areas in Abia State Nigeria. This study adopted a quasi-experimental study research design which involved one experimental group and one control group for the selection of the 52 food handlers in the five selected Local Government Areas in Abia State. Data were collected using a pretested semi-structured interviewer administered questionnaire and an observational checklist. Descriptive analysis was done with frequencies and summary statistics, T-test and independent sample test was computed to determine the mean difference and significant relationship of variables. Level of significance was set at 0.05 significant levels.Themean knowledge score of the control group was 4.02 ± 1.55 while the mean knowledge score of the experimental group was 7.92 ± 2.50 before the intervention. The difference between the means of the two groups was statistically significant (t=9.28; p=0.000). Also, the mean attitude score was 37.58 ± 3.31 in the control while mean attitude score was 37.79 ± 5.10 in the subjects. The difference between the groups was not statistically significant (t=0.24; p=0.813). The mean practice score was 8.21 ± 2.69 in the control group while the mean practice score was 8.73 ± 4.76 in the experimental group. The difference between the groups was not statistically significant (t=0.67; p=0.506). After the intervention, the mean knowledge score for the experimental group was 9.02 ± 1.58 while that of the control group was 5.55 ± 1.54. The difference between the group was statistically significant (t= 11.03; p=0.000). The mean attitude score for the experimental group was 40.33 ± 4.10 while that of the control group was 41.81 ± 1.963. The difference between the groups was statistically significant (t=2.26; p=0.026). Educational and training programs should be implemented to influence the food vendors’ knowledge, attitude, and practice positively.
The Link between Leadership Style, Organizational Change Perceptions and Job Satisfaction at the Ethiopian Electric Utility

This study explored the relationship between leadership style, employees’ change perception, and job satisfaction at the Ethiopian Electric Utility. A correlation research design was used to conduct the study. The sample was composed of 40 leaders and 270 employees selected using proportionate stratified random sampling. Data were gathered using three standardized questionnaires merged into one and analyzed using both descriptive statistics such as mean, SD, and inferential statistics like Pearson product-moment correlation, an independent ttest, and MANOVA. Finally, the findings unveiled significant and positive correlations between transformational leadership style and organizational change perceptions and between transactional leadership style and intrinsic and extrinsic job satisfaction. There was also a negative correlation between organizational change and employees’ job satisfaction. Furthermore, the transformational leadership style has emerged as the strongest predictor of employees’ change perception. It was concluded that leaders at the organization ought to improve their leadership style to improve the existing employees’ perception of change and their job satisfaction. Additional policy implications are also forwarded in the study.
A High-Accuracy and Fast-Correction Quadrature Signal Corrector Using an Adaptive Delay Gain Controller for Memory Interfaces

In this paper, a quadrature signal corrector (QSC) with high accuracy and fast correction for memory interfaces is presented. An adaptive delay gain controller in the QSC adjusts each delay gain of four digitally controlled delay lines (DCDLs) separately depending on skew between the quadrature clocks, resulting in short correction time together with low residual skew. To validate the effectiveness of our QSC in memory interfaces, a quarter-rate single-ended 1-tap decision feedback equalizer (DFE) with the QSC was fabricated in a 65nm CMOS process. Using the adaptive delay gain controller, the QSC reduced the skew between the 3 GHz quadrature clocks from a maximum of 21.2 ps to 0.8 ps while correction time was reduced by a factor of 3.9 compared to that without using the adaptive delay gain controller. At 12 Gb/s, the DFE using our QSC achieved a BER of 10-12 with an eye width of 140 mUI when the input clock skew is 13.2 ps.
Design and Analysis of Combined Input-Voltage Feedforward and PI Controllers for the Buck Converter

This paper presents the design and analysis of combining input-voltage feedforward and proportional-integral (PI) controllers to regulate the output voltage of DC-DC Buck converter subject to input line disturbances. Non-idealities of the Buck converter such as passive and active components parasitics are included in the mathematical model obtained by the statespace averaging (SSA) technique for accurate control. The stability boundary locus approach is used to graphically analyze the system stability. It guides the design of the PI controller gains and the feedforward scaling factor to achieve desired phase and gain margins. Analysis shows that the feedforward scaling factor affects the stability regions of the closed-loop system and can limit the possible PI controller gains for certain phase and gain margins; 75o and 9.54 dB in our case. The results are verified by a Simulink model developed for the Buck converter system.
Admission Control for 5G Network Slicing based on (Deep) Reinforcement Learning

Network Slicing is a promising technology for providing customized logical and virtualized networks for the industry’s vertical segments.This paper proposes SARA and DSARA for the performance of admission control and resource allocation for network slice requests of eMBB, URLLC, and MIoT type in the 5G core network. SARA introduced a Q-learning based algorithm and DSARA a DQN-based algorithm to select the most profitable requests from a set that arrived in given time windows. These algorithms are model-free, meaning they do not make assumptions about the substrate network as do optimization based approaches.
Detection of benzimidazole resistance against naturally occurring gastrointestinal nematodes in different sheep breeds of Odisha

Gastrointestinal nematodes are a major hindrance in sheep husbandry and the efficient management of these parasites is curbed by the development of anthelmintic resistance. The present investigation was carried in different sheep breeds of Odisha and the status of resistance in gastrointestinal nematodes against Fenbendazole was carried out by in vivo faecal egg count reduction test (FECRT) and in vitro Egg Hatch Assay (EHA) test. The results of the anthelmintic resistance study indicated benzimidazole resistance to gastrointestinal nematodes in Kendrapada, Ganjam and Nondescript breed of sheep while Balangir breed of sheep where found susceptible.
Image Registration and Fusion using Moving Frame based Decomposition Framework Algorithm

Image fusion is an important process in the medical image diagnostics methods. Fusing images by obtaining information from different source and different types of images(modals) called multi-modal image fusion. This paper implements an effective and fast spatial domain based multimodal image fusion using moving frame based decomposition (MFDF)method. Images from two different modalities are taken and decomposed to texture and approximation components. Weight mapping strategy is applied along with the guide filtering to fuse the approximation components using the final map. Weight mapping using the guide filtering is used for the fusing the images from different modalities. MATLAB is used for algorithm implementation. The results obtained are comparatively competitive with the recent publication[11]. Multi modal image fusion thus implemented gives promising results, when compared to moving frame decomposition framework method. The size and the blurring variable of the guiding filter is optimized to obtain a better Structural Similarity Index Measurement (SSIM).
Antibacterial agent-releasing scaffolds in dental tissue engineering

It seems quite challenging in tissue engineering to synthesize a base material with a range of essential activities, including biocompatibility, nontoxicity, and antimicrobial activities. Various types of materials are synthesized to solve the problem. This study aimed to provide the latest relevant information for practitioners about antibacterial scaffolds in dental tissue engineering. The PubMed search engine was used to review the relevant studies with a combination of the following terms as search queries: tissue engineering, scaffolds, antimicrobial, dentistry, dental stem cells, and oral diseases. It is noteworthy to state that only the terms related to tissue engineering in dentistry were considered. The antimicrobial scaffolds support the local tissue regeneration and prevent adverse inflammatory reactions; however, not all scaffolds have such positive characteristics. To resolve this potential defect, different antimicrobial agents are used during the synthesis process. Innovative methods in guided tissue engineering are actively working towards new ways to control oral and periodontal diseases.
Reactions of methyl radicals. IV. Hydrogen abstraction from tetramethylsilane by methyl radicals produced by the photolysis of both acetone and azomethane

Studies of hydrogen abstraction by CH3 radicals from (CH3),Si with two different radical sources, acetone and azomethane, have yielded data on the reactions CH3 + Ch3COCH3 → CH4 + CH3COCH2 (1) CH3 + CH3NNCH3 → CH4 + CH3 NNCH2 (2) Ch3 + (Ch3)4Si → Ch4 + (CH3)3SiCH2 Their rate constants, based on the value of 1013.34 cm3 mol-1 s-1 for the recombination of CH3 radicals, together with the corresponding experimental temperature ranges, are given by (k in cm3 mol-1 s-1, E in J mol-1): log k2 = (11.54±0.02) - (40 000±220)/19.145T 398-522 K (2) log k8 = (10.98±0.02) - (32 550±160)/19.145T 334-463 K (8) log k8' = (11.03±0.02) - (32 920±180)/19.145T (8') With acetone as the radical source: log k5 = (11.85±0.06) - (44 810±160)/19.145T 395-523 K (5) With azomethane as the radical source: log ks = (11.88±0.03) - (44 610±260)/19.145T 363-463 K (5) log k5' = (12.02±0.04) - (45 630±310)/19.145T (5') where k5' and k5' are the values for ks and k5, respectively, obtained after allowance is made for the formation of C2H6 by way of the intramolecular decomposition of azomethane. From a consideration of these and previously reported data on CH3 and CD3 attack on (CH3)4Si, we conclude that the source of CH3 radicals, and the intramolecular formation of C2H6 in the photolysis of azomethane, both have a negligible effect on the rate constants for the reaction, and that CH3 and CD3 radicals are of equal reactivity. We also recommend best values for the Arrhenius parameters for the reaction.
Quantum Information and Computation with Rydberg Atoms

Highly excited Rydberg atoms are providing strong and controllable atomic interactions ideal for quantum technology with neutral atoms and photons. In this review article, the significant properties of Rydberg atoms and their scaling with principal numbers are discussed in detail. In addition, the application of laser-excited Rydberg atoms in neutral atom quantum computation is reviewed. This review article discusses, also, the application of Rydberg polaritons in quantum optics devices including single-photon sources, photonic gates, and transistors.
Unique damage‐related, gap‐filling tooth replacement in pycnodont fishes

Most jawed vertebrates (gnathostomes) replace their teeth throughout life (polyphyodonty) and there is currently great interest in its molecular and cellular basis, particularly in fish. While much has still to be elucidated, it appears that whichever tooth replacement mechanism is used, only one tooth replaces one predecessor, at any one time. Here we present fossil crushing dentitions of two extinct pycnodont fishes, Pycnodus zeaformis and Pycnodus maliensis. Their surface features and x‐ray micro‐CT virtual sections show no evidence of one‐for‐one replacement. Instead, individual large teeth were replaced by multiple small teeth, for which, as far as we could ascertain, there is no known mechanism. This occurred where underlying dentigerous bone was damaged. Small teeth also developed where parts of large teeth had broken off, and in gaps between large teeth created by the geometry of their close alignment in rows. We compared the virtual sections to those of functionally analogous crushing dentitions of three modern fishes. Contrasting greatly to the pycnodonts, each showed an orderly, one‐for‐one replacement, typical of osteichthyans. We propose that the pycnodont specimens exhibit a gap‐filling tooth addition hitherto unseen in gnathostomes, and that the oral epithelium retained an initiatory competence throughout life, with a programming of ‘if a gap exists, fill it’. This would also have facilitated the addition of large teeth in rows, in space provided by ontogenetic growth. We hypothesize that gaps were registered as an absence of pressure at the crushing surface, initiating tooth development, as in the modern cichlid Astatoreochromis alluaudi.
Molecular genetic testing for BRAF V600 gene mutations 
in melanoma in the Republic of Kazakhstan

Relevance: Along with other diagnostic methods, all current recommendations and protocols for malignant tumors’ diagnostics and treatment require mandatory molecular genetic testing at the initial diagnosis and in case of disease progression. The discovery of the BRAF gene mutation in skin melanoma allows the treatment with tyrosine kinase inhibitors, so-called BRAF inhibitors. This increases the probability of tumor response by half and opens up new therapeutic options. The study aimed to identify the BRAF V600E gene mutation frequency in patients with stage III-IV melanoma in the Republic of Kazakhstan to determine the need for targeted therapy. Results: 2251 persons are currently registered with melanoma in the Republic of Kazakhstan, with 355 new primary melanoma cases in 2019. Of them, 54% were diagnosed at stages III-IV and were subject to molecular genetic testing. 278 of 2251 patients were sent for BRAF mutations testing. The mutations were detected in 105 (37.7%) patients. Conclusion: The introduction of molecular genetic testing for malignant neoplasms under the Comprehensive Cancer Control Plan framework for 2018-2022 will increase the use of molecular genetic methods in the Republic of Kazakhstan. Molecular genetic testing is an important step in diagnosing melanoma and choosing the appropriate therapy to personalize cancer treatment.
Suppression of thermal conductivity and electronic correlations in Fe1−xRuxSb2 (0 ≤ x ≤ 0.6)

We present simultaneous suppression of FeSb2 thermal conductivity and electronic correlations in Fe1−xRuxSb2 (0 ≤ x ≤ 0.6) single crystal alloys. Small energy gap Δ 1 in Kondo-insulator-like semiconductor FeSb2 associated with impurity in-gap state increases whereas the intrinsic bandgap Δ 2 decreases upon Ru substitution on Fe atomic site. Thermopower is suppressed along with the intrinsic bandgap and with the thermal conductivity. The more delocalized 4d character of atomic orbital of Ru brings suppression of electronic correlations, but also an increase in impurity density which reduces phonon mean free path and surface scattering length. Our results indicate a range of Ru doping x where nanostructuring could be used to suppress thermal conductivity further, potentially toward the amorphous limit.
The Effect of Company Size and Financial Distress on Going Concern Audit Opinions with Opinion Shopping as Moderation Variables

This study aims to examine the effect of company size and financial distress on going concern audit opinions with opinion shopping as moderation variables. The population in this study are companies with types of manufacturing industries listed on the Indonesia Stock Exchange in the period 2016 to 2018. The sample was obtained using a purposive random sampling method. Data analysis uses logistic regression and different absolute values. The results showed that company size and financial distress affected going concern audit opinions, opinion shopping did not affect company size on going concern audit opinions and opinion shopping affected financial distress on going concern audit opinions.
Reducing uncertainties in innovation projects through intra-organisational collaboration: a systematic literature review

PurposeThis article provides the first systematic review of literature on effective organisational practices for reducing innovation project uncertainties to promote project performance. Innovation is the lifeblood of organisations, while simultaneously being one of the most challenging processes to manage. This systematic review seeks to examine best practice for reducing uncertainties and thus mitigate the high failure rates in innovation projects.Design/methodology/approachThis paper provides a systematic review of the literature on innovation project management and encourages an understanding of how intra-organisational collaboration reduces uncertainty and thus increases project performance.FindingsBased on an analysis of the systematic literature review findings, the impact of intra-organisational collaboration in reducing uncertainties in innovation projects is uncovered. Three types of project uncertainties were found to be dominant in the context of innovation project management: task, technological and market uncertainties. Five dimensions of intra-organisational collaboration are also identified, namely collaborative relationship, collaborative leadership, communicating and sharing information, trust formation and joint decision-making.Originality/valueThe authors situate five intra-organisational collaboration dimensions as key mechanisms that yield organisational learning as an outcome. On the other hand, they also uncovered that organisational learning is a key enabler in the relationship between intra-organisational collaboration and task, market and technological uncertainties reduction. Therefore, intra-organisational collaboration is identified as a critical practice in enhancing the performance of innovation projects. The study proposes a multi-dimensional conceptual model, providing a mechanism for furthering a research agenda for improving the performance of innovation projects.
THE CHALLENGES OF FAMILY BUSINESS SUCCESSION PROCESS: A CASE STUDY OF TWO MAJOR BATIK PERANAKAN ENTREPRENEURS IN PEKALONGAN AND SOLO

Family business has many challenges to sustain for generations. Two legendary Peranakan batik entrepreneurial families halted their businesses at the third generation and this research looks for the causes of this failure. Through qualitative research method, the conclusion drawn is that there is no mature succession planning from the predecessor to the successor. Meanwhile, the difference in motivation and commitment of the next generation of these two family businesses do not seem to cause a difference in the final journey of Batik Oey Soe Tjoen and Batik Tiga Negeri. Factors beyond succession planning and commitment of future generations can be subject to further research studies.
Quality evaluation of Artemia cysts from three Algerian populations

The aim of this study was to determine the nutritional value of three populations of Artemia, one from the Bethioua Sebkha (Oran) and two new biotopes at El Melah (Bechar) and Timimoune (Adrar), by evaluating the cyst and nauplius biometry, hatching parameters and fatty acid profiles. This information is of relevance to aquaculture initiatives, and fills in knowledge gaps from previous research at Algerian sites. The size of nauplii varied from 453.26 ± 0.3 µm and 478.73 ± 0.2 µm. The chorion thickness was between 13.28 µm and 10.50 µm. The highest hatching percentage and hatching efficiency were obtained after decapsulation of Bethioua cysts. The shortest hatching synchrony time was also found for the Bethioua cysts. All cyst samples from the the Bethioua population analysed in this study showed a freshwater-type fatty acid profile, rich in linolenic acid (LNA, 18:3n.3), opposed to a marine-type fatty acid profile rich in presence of eicosapentaenoic acid (EPA, 20:5n-3). The Bethioua population exhibited the best hatching performance and are ideally suited for use in aquaculture.