Miracle-dz/UniFAR-FTUs huggingface dataset:
Quantitative Phytochemical Composition and Bioactive Constituents of Ethanolic Extract of Phyllanthus amarus (schum. et thonn) Leaves

Herbs are used in the treatment of several human ailment and diseases. The quantitative phytochemical composition, bioactive constituents of ethanol extract of Phyllanthus amarus leaves were determined. The quantitative phytochemical analysis of ethanol extract of Phyllanthus amarus found to be present in this study includes phenol, flavonoid, saponin, tannin and alkaloid. The total content of phenol is 73. 163µg/ml, flavonoid is 137. 27µg/ml, tannin is 3. 581µg/ml, alkaloid is 30.1 % and saponin is 34.822 ppm. The GC-MS analysis of bioactive constituents of the ethanol extract of Phyllanthus amarus leaves resulted in 44 compounds which have diverse use. The various bioactive compounds present in P. amarus confirm its uses for the treatment of various ailments and diseases by traditional practitioners.
Improved grey wolf optimisation algorithms

: The grey wolf optimisation (GWO) algorithm has fewer numbers of variables and appears quite simple with outstanding capabilities in solving the problems, which are used to describe mathematically what human met in nature. However, it still has its capability to be improved in the convergence ratio, stability, and reduce the errors. And it is also easily trapped in local optimum and converged slowly approaching the end, which is just the same defect appearing in other meta-heuristic algorithms such as the bat algorithm (BA), the particle swarm optimisation (PSO) algorithm, and the genetic algorithm (GA). Lots of improvements have been proposed before. In this paper, we propose an improved GWO algorithm inspired by the PSO algorithm to fasten the convergence ratio and reduce the errors. Empirical work and verifications are carried out; and results show its better performance than the standard GWO algorithm and other well-known meta-heuristic algorithms
Quinolones resistance in Salmonella spp. isolated from broilers and chickens’ carcasses under federal inspection

ABSTRACT: We analyzed 77 Salmonella spp. strains, from which 20 were isolated from broilers (cloacal swabs) and 57 from chickens from slaughterhouses under federal inspection. The following serotypes were identified: Salmonella Saint Paul (29), Salmonella Heidelberg (27), Salmonella Anatum (9), Salmonella Cerro (5), Salmonella Senftenberg (5), Salmonella enterica (O: 4,5) (1) and Salmonella enterica (O: 9.12) (1). Fifteen strains (19.5%) were resistant to enrofloxacin, six (7.8%) to ciprofloxacin, and 26 (33.8%) to nalidixic acid in the Disk Diffusion Test. The fifteen enrofloxacin resistant strains were selected for the PCR to detect the genes gyrA, gyrB, parC, and parE, and genetic sequencing to identify mutations in these genes. Five strains (33.3%) had point mutations in the gyrA gene, and one (6.7%) presented a point mutation in the parC gene. None of the 15 strains had mutations in the gyrB and parE genes, and none had more than one mutation in the gyrA gene or the other genes. The presence of point mutations in the strains studied corroborates with the phenotypic resistance observed to nalidixic acid. However, it did not explain the resistance to fluoroquinolones found in the 15 strains. Other mechanisms may be related to the fluoroquinolones resistance, highlighting the need for additional mutation screening.
Experimental investigation and justification of the parameters of the separator of potato heap

Goal. To justify the rational constructive and kinematic parameters of the new cleaner of potato heap of spiral type based on the results of multi-factor experimental field studies. Methods. Methods of correlation and regression analyses and the methods of construction of nomograms were applied for processing and analysis of experimental research. Results. A new design is developed of a cleaner of potato heap, which consists of 3 console-located drive coils. It provides an active cleaning surface for the dug heap. It is possible to change the angle of the inclination of the cleaning surface to the horizon, which provides a different intensity of separation of impurities and ensures the movement of tubers in the direction of the conveyor belt. That also contributes to a better dispersal of the heap at the working surface of the cleaner, more intensive destruction of soil lumps, and consequently, to improve screening and reduce clogging of the cleaning coils. An experimental study in the production conditions showed that cleaning of potato tubers from impurities was due to the intensive movement of the heap coils of cantilevered cleaning coil springs. Cleaning coil springs rotate not only with a given angular velocity, but at the same time oscillate their console ends due to the deflection of the longitudinal axis under the weight of the heap in the working area of the cleaner. Conclusions. The model of monofactorial experiment is built according to the field experimental studies, statistical processing of the results of which is implemented using Microsoft Excel. Graphic dependencies are built, allowing us to choose rational constructive and kinematic parameters of potato cleaners of spiral type at designing and developing new potato harvesters.
Friction and Wear Analysis of UHMWPE Material Using Pin-on-Disc Tester with Lubricant and Non-Lubricant

Ultra-high molecular weight polyethylene (UHMWPE) is a biomaterial that is widely used in the manufacture of acetabular liners for the application of artificial hip joints (AHJ). The problem that often arises from UHMWPE material is the occurrence of wear debris as a result of the mechanism of contact of UHMWPE material with its partner material on AHJ. The purpose of this research is to analyze the friction and wear behavior of UHMWPE material which is paired with AISI 316L. Wear test using a pin-on-disc tribometer in dry conditions and serum bovine lubricant. SEM-EDX analysis is used to see the phenomenon of wear track and absorption of AISI 316L metal elements that occur in UHMWPE. The results showed that the use of bovine serum significantly decreased the friction and wear rates of the UHMWPE / AISI 316 pair.
“Self-centered, self-promoting, and self-legitimizing”: CNN’s portrayal of media ownership concentration in the US

ABSTRACT In late 2017 the potential merger between AT&T and Time Warner was blocked while two other comparable media deals were not penalized. Drawing on a critical political economy of communications framework, this article investigates CNN online news’ portrayal of media-ownership concentration in the US. We subjected the news coverage (n = 43) of CNN (a subsidiary of Time Warner) to a thematic analysis along the lines that Braun and Clarke suggest. The results show that CNN’s coverage of media ownership concentration developments can be described as self-centered, self-promoting, and self-legitimizing. While the main focus is on news coverage the article offers an account of the different handling of the three mergers by the Trump administration, the Department of Justice and the Federal Communications Commission. The mergers show high levels of politicized intervention. We seek to contextualize and partly explain these findings with contradictions in the present conjuncture.
Evaluations of the physical and physicochemical properties and perception of liking of conventional and low-calorie orange jellies

There is a growing demand for reduced-calorie products today due to changing dietary habits of the population. This challenges the food industry to design products that resemble conventional ones concerning physical, physicochemical, and sensory characteristics. Thus, the objective of this study was to evaluate the physical and physicochemical properties and perception of the liking of conventional and low-calorie orange jellies. Two different formulations (conventional and low-calorie) of each type of orange jelly were prepared and assessed under physical, physicochemical, sensory, and statistical analysis. The results showed that the formulated jellies presented differences in terms of the physical and physicochemical parameters studied, except for the color parameter a*. Conventional jelly had lower values of pH, acidity, and soluble solids, and higher moisture content. Additionally, conventional jelly was found to be lighter, more yellow, less rigid, and less viscous, than low-calorie orange jellies most likely due to its shorter cooking time. The two sensorial methodologies (time-intensity and temporal dominance of sensations analysis) used showed differences in perception of the evaluated stimuli, with the conventional orange jelly having higher dominance intensities for sweet taste and acidity. The low-calorie orange jelly presented a bitter taste, most likely due to the use of sweeteners.
MPC and robustness optimisation‐based EMS for microgrids with high penetration of intermittent renewable energy

This study develops a three-stage energy management system (EMS) for renewable energy microgrid operation. The core of this framework is based on a unit commitment problem integrated with model predictive control (MPC) to address the problem of uncertainty in renewable sources. Meanwhile, it is shown that an MPC approach may be insufficient to fully address the hurdles for optimal and safe operation of wind power-integrated energy systems due to the severity of wind speed fluctuations within even short time intervals. Spinning reserve resources can have a positive impact to ensure a reliable operation, yet their availability is highly dependent on the existence and capacity of dispatchable energy sources, such as diesel generators, in energy systems. Consequently, a supplementary Constrained Information Gap Decision Theory approach is utilised in this study to optimise the system's robustness against severe uncertainty of wind generations. In order to evaluate the presented framework, a descriptive index is first introduced, and then the model is applied to an isolated microgrid. The results indicate that by deploying these three stages, the renewable energy support index increases, ensuring an optimal, reliable, and safe operation.
Preparing 3D-printable silk fibroin hydrogels with robustness by a two-step crosslinking method

Regenerated silk fibroin (RSF) features excellent biocompatibility and high-strength mechanical properties. However, traditional RSF-based materials can hardly be applied in 3D printing, which has shown great potential in producing artificial implants. In this work, we report a 3D printable RSF hydrogel formed by a weak, chemically crosslinked network. After the 3D printing process, the mechanical properties of the above hydrogel can be remarkably improved by a ripening process. The maximum compressive modulus of this RSF hydrogel is 2.5 MPa, reaching the same order of magnitude as natural elastomers such as cartilage. The mechanical properties of this hydrogel are superior to most RSF-based 3D printed hydrogels. The investigation of gelation mechanism reveals that the chemically crosslinked network can constrain the growth of β-sheet structures of RSF to form a dense and uniform physical network. Such a physically crosslinked network endows the high strength and good resilience of RSF hydrogels. With both good biocompatibility and mechanical properties, this double-network hydrogel has potential in producing 3D printed scaffolds for tissue engineering.
Speech language pathology Clinical Education: perceptions and experiences of clinical educators and students

For the purposes of professional development clinical education is crucial to speech-language pathologists (SLP). There is limited information about clinical education of SLP students in Portugal. The aim of this study was to describe and compare the mutual perceptions of Portuguese SLP’s clinical educators and students’ of SLP in a Portuguese private University Clinic. Five SLP clinical educators and nine students participated in a one on one semi-structured interview. Content analysis was used to explore interview data. The analysis led to the identification of four themes shared by both groups. Findings from this study provided an insight about clinical education characteristics and challenges reported by clinical educators and students in Portugal and to compare those results with others mentioned in other countries. The findings of this study suggest that clinical educators and students identify, in general, similar characteristics regarding effective/non-effective clinical educator profile and benefits regarding clinical education process. The sample provides preliminary data on Portuguese clinical educator’s and student’s experience of clinical education.
Breastfeeding for children of mothers who are infected with SARS-CoV-2: a systematic scoping review

The aim of the present study was to perform a systematically review the literature in order to clarify whether breastfeeding is safe for babies of mothers infected with coronavirus, called SARS-CoV-2. The searches were carried out on MEDLINE (via PubMed), EMBASE and government statements and publications and manual search of reference lists on 5 July. The title, abstracts and full text were read in duplicate by two independent researchers to verify the eligibility criteria. From 2723 records, 17 citations were included. Eleven citations guide avoiding breastfeeding in cases of maternal infection confirmed by SARS-CoV-2. Fourteen citations did not present consensus on breastfeeding and twelve citations recommended to maintain breastfeeding. Conclusion : Through the evidence found so far, it is emphasized that the mother / child separation in the neonatal period is discouraged, as it harms the maternal bond, in addition to interfering considerably in breastfeeding. Therefore, the evidence found so far is extremely low in quality and does not present quantitative evidence in one way or another with regard to vertical transmission of SARS-CoV-2, there is no way to recommend, avoid or even guarantee that there will be no infection, but it is recommended to continue breastfeeding.
The Role of Total Number of Floors under Age Influencing Residential Price Utilizing the Mediation Analysis

We examine here how does age and total number of floors affect residential prices in Taichung City Taiwan. In recent years, with the increase in land prices and the improvement of construction technology, number of floors in multi-family residential towers has also increased in Taiwan. There are many factors that affect the transaction price of multi-family residential towers. The research object of this study is 2,500 transaction data of 22 multi-families residential towers in the most densely populated area near Zhongke Shopping Plaza in Xitun District, Taichung City April 2012 to March 2019. First, this study uses the hedonic pricing model explore the significance of factors that affect the transaction price of multi-family residential towers with residential prices as the dependent variables, number of floors, age, land transfer area, building transfer area, story as independent variables. Then this study uses causal steps and bootstrapping to check the intermediary effect of number of floors between age and residential price. The statistical results Original Research Article Yang and Hsieh; SAJSSE, 7(2): 1-9, 2020; Article no.SAJSSE. 58783 2 found that number of floors, age, land transfer area, and building transfer area all significantly affect residential price. This study found that age affects residential price through number of floor height that represent number of floors playing the role of full mediation between age and residential price.
A 20-YEAR RETROSPECTIVE ANALYSIS OF SKIN CANCERS: COMPARISON OF THE FIRST AND SECOND DECADES

Amac: Cevresel faktorlere bagli olarak cilt kanserlerinin insidansi gun gectikce artmaktadir. Gelisen tanisal ve patolojik metotlar kanserlerin daha dogru tiplendirilmesine yardimci olmaktadir. Yontem: Calismamizda cilt kanserleri ve in situ karsinom nedeniyle 1 Ocak 2000-31 Aralik 2019 tarihleri arasinda klinigimizde tedavi amaciyla basvuran ve tedavisi planlanan hastalar dahil edildi. Hastalar ilk on yil ikinci on yil olarak iki gruba ayrildi. Gruplar; kanser tipi, yas, cinsiyet ve lokalizasyon acisindan karsilastirildi. Bulgular: 619 vakaya ait 652 cilt kanseri ve insitu karsinom tespit edildi. Gruplar karsilastirildiginda ikinci on yilda malign melanoma, Bowen hastaliginda ve nadir gozlenen Non Melanositik Cilt Kanseri (NMCK)’nin alt tiplerinde anlamli bir artis oldugu gozlendi (p<0,001). NMCK ve Melanositik Cilt Kanseri (MCK) karsilastirildiginda MCK insidansinin son 10 yilda %5.2 den % 10 a yukselmesi istatistiksel acidan anlamli idi (p<0,05). Sonuc: Nadir gozlenen NMCK’ler cesitli tedavi protokolleri olan pek cok karsinom tiplerini icermektedir. Ayrica bu grubun pek cok uyesinin Bazal Hucreli Kanser ve Skuamoz Hucreli Kanserden daha agresif seyrettikleri bilinmektedir. Ozellikle lenf nodlarina karsi yaklasim hakkinda ortak bir konsensus bulunmamaktadir. Rekurens ve metastazlarin erken tespit edilebilmesi icin yakin takip gereklidir.
A preliminary study on the infestation indices of dengue vector, Aedes aegypti (Diptera: Culicidae) in Taif, Saudi Arabia

Surveys were carried out (August to November; 2018 and 2019) in 12 residential districts of Taif city to examine the overall entomological indices (House Index, HI; Container Index, CI and Breteau Index, BI) for Aedes aegypti larvae. A total of 682 houses were inspected of which 193 were positive and of 1139 containers, 370 were found positive for larval breeding. The calculated indices were 28.3% HI, 32.5% CI and 54.3% BI with significantly higher values in 2019 period (42.2% HI, 42.7% CI and 77.0% BI, P<0.001) than in 2018. Significantly higher indices were observed for the northern part (37.7% HI, 39.9% CI and 66.7% BI, P˂0.05) than those for the other parts of the city. The reported dengue cases during the study periods coincided with the difference in larval abundance in the different parts of Taif. The abundance of breeding containers resulting from vast and extensive constructions (that require much of water storage) is the factor responsible for the abundance of larvae (high indices) than temperature and humidity. The obtained results may be of importance for determining the risk of dengue transmission and planning of an efficient control program. However, further intensive studies are required to examine the status of the vector/ dengue fever in Taif city/governorate.
HYBRID CRYPTOGRAPHIC APPROACH FOR INTERNET OF THINGS APPLICATIONS: A REVIEW

Cryptography is described as the study of encrypting or secret writing of data using logical and mathematical principles to protect information. This technique has grown in importance in computing technologies for banking services, medical systems, transportation and other Internet of Things (IoT)based applications which have been subjected to increasing security concerns. In cryptography, each scheme is built with its own respective strength, but the implementation of single cryptographic scheme into the system has some disadvantages. For instance, symmetric encryption method provides a costeffective technique of securing data without compromising security. However, sharing the secret key is a vital problem. On the other hand the asymmetric scheme solves the secret key distribution issue; yet the standalone technique is slow and consumes more computer resources compared to the symmetric encryption. In contrast, hashing function generates a unique and fixed-length signature for a message to provide data integrity but the method is only a one-way function which is infeasible to invert. As an alternative to solve the security weakness Received: 20/8/2018 Revised: 18/6/2019 Accepted: 23/6/2019 Published: 11/6/2020 Journal of ICT, 19, No. 3 (July) 2020, pp: 279-319 280 of every single scheme, integration of several cryptographic schemes which are also called the hybridization technique is being proposed offering the efficiency of securing data and solving the issue of key distribution. Herein, a review study of articles related to hybrid cryptographic approach from 2013 to 2018 is presented. Current IoT domains that implemented hybrid approaches were identified and the review was conducted according to the category of the domain. The significant findings from this literature review included the exploration of various IoT domains that implemented hybrid cryptographic techniques for improving performance in related works. From the findings, it can be concluded that the hybrid cryptographic approach has been implemented in many IoT cloud computing services. In addition, AES and ECC have been found to be the most popular methods used in the hybrid approach due to its computing speed and security resistance among other schemes.
Matériaux moléculaires amorphes pour la photostructuration de fluorescence

Au cours de ce travail de these, des materiaux monomeres amorphes bifonctionnels photochromes et fluorescents ont ete elabores et etudies dans le but de former sous irradiation interferentielle des structures fluorescentes par migration de matiere photoinduite . Pour contrer le phenomene d'extinction de fluorescence par l'unite photochrome azoique, un espaceur sature de type adduit de Diels-Alder a ete introduit entre les deux entites photoactives. De telles molecules ont ete obtenues avec succes ainsi que les composes modeles azoiques et fluorescents correspondants.L'introduction de nouveaux fragments comme l'espaceur ne modifiait pas les proprietes de photochromisme que ce fut en solution ou a l'etat solide. A l'oppose, des etudes de spectroscopie de fluorescence stationnaire et resolue en temps ont montre que la presence de cet espaceur limitait efficacement les phenomenes d’extinction de fluorescence au sein des composes bifonctionnels. Dans le but de comprendre les mecanismes photophysiques sous-tendant l'extinction de fluorescence observee, des experiences de spectroscopie d'absorption transitoire femtoseconde ont ete realisees sur les composes modeles et bifonctionnels. Elles ont mis en evidence l’existence d’un transfert d’energie electronique picoseconde de l’unite fluorescente vers l’unite photochrome.Sous forme de films minces non-dopes, ces nouveaux composes bifonctionnels ont conduit par photostructuration holographique a des reliefs de surface reinscriptibles, stables a temperature et sous lumiere ambiantes et modules en intensite de fluorescence, les maxima d'emission correspondant aux zones d'accumulation en composes bifonctionnels. Une nouvelle reaction photochimique consistant en la photocoupure de derives fluorescents nitres de la triphenylamine a ete mise en evidence. L’irradiation sous UV de solutions et de films minces provoquait une photorupture de l’etat a transfert de charge intramoleculaire, conduisant a la modification de la couleur emise de l’orange au bleu. Des structures fluorescentes modulees en energie ont pu ainsi etre obtenues par irradiation au travers d’un masque tout en controlant la quantite de lumiere apportee.