Miracle-dz/UniFAR-FTUs huggingface dataset:
THERAPEUTIC EVALUATION OF CHEMICALLY SYNTHESIZED COPPER NANOPARTICLES TO PROMOTE FULL-THICKNESS EXCISIONAL WOUND HEALING

Objective: The purpose of this research was, synthesis of copper nanoparticles using environment friendly cementation method and evaluate their wound healing property on full-thickness excisional wound. Methods: Present study reports the synthesis of CNPs by single-step cementation method. Evaluation of CNPs was endorsed by morphological and chemical properties. Furthermore, CNPs was evaluated for its antibacterial potential and invitro hemocompatibility. Additionally, pharmacological evaluation of CNPs was assessed against excisional wound. Results: Characterization of final product indicate, particle size of CNPs were ranging from 100-150 nm. CNPs showed significant antibacterial activity (A= 2.1±0.1 mm, B =2.1±0.1 mm, C = 1.9±0.2 mm, at 10µg/ml), along with superior hemocompatibility (RBC cell survival 97±1 %). Further CNPs formulation shows increased level of anti-inflammatory cytokinin’s (IL-10, 42.7%) as compared to standard (STD), vehicle control, and normal control groups, attributed to accelerated wound healing (p<0.05 vs STD). Conclusion: The consequences the present investigation endorse the accelerated wound healing potential of CNPs with its anti-inflammatory potential.
Poly(methacrylamide‐co‐acrylic acid) hydrogels for gastrointestinal delivery of theophylline. I. Swelling characterization

pH sensitive copolymeric hydrogels have been synthesized by free-radical polymerization of methacrylamide and acrylic acid in aqueous medium. The gels were characterized by FTIR spectroscopy, thermogravimetric analysis, and swelling measurements. To determine the suitability of theses hydrogels for gastrointestinal oral delivery of model drug theophylline, their swelling behavior was investigated as a function of pH and various structural parameters such as the average molecular weight between crosslinks, crosslink density, and mesh size were calculated. Likewise initial, average and late time diffusion coefficients were also evaluated in simulating intestinal fluid of pH 6.8 at 37°C. The gel underwent sharp volume phase transition in the vicinity of pH 5.8. The mesh sizes of the hydrogel were between 8.4 and 9.2 A in the collapsed state (pH range 1–2; SGF) and between 514 and 524 A in the swollen state (pH range 7–8; SIF). The experimental data was found to fit well to Beren-Hopfenberg equation thus suggesting that later part of swelling was chain relaxation controlled. The activation energy, as determined from Arrhenius equation was found to be 13.71 kJ mol−1. Likewise, enthalpy of mixing was also evaluated using Gibbs-Helmholtz equation. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 2995–3008, 2006
Reduced‐order event‐triggered controller for a singularly perturbed system: An active suspension case

For two-time scale systems, singular perturbation theory is often used for designing a controller based only on an approximate model of its slow dynamics, assuming the fast model to be stable. In this context, the authors investigate and implement a stabilising event-triggered feedback law for a networked singularly perturbed system, based only on an approximate model of its slow dynamics. Triggering rule guarantees the stability and the existence of a positive lower bound between two consecutive transmissions. The proposed approach has been validated for a laboratory-scale hardware setup of an active suspension system of a quarter-car model. The presence of fast and slow modes in a vehicle suspension system is utilised to model it as a singularly perturbed system. Experimental results indicate that in spite of the simplified structure of the controller and event-triggered feedback, its performance is comparable to that of the full-state feedback design with continuous feedback with the significant reduction in control execution events.
Novel phenolic resins with improved mechanical and toughness properties

Novel phenolic type of thermoset resins were synthesized, and their mechanical and toughness properties were evaluated. Phenol Formaldehyde (PF) phenolic resins were modified to broaden their applications for modern composite structures. A first modification consisted of copolymerization of Phenol with Cardanol during the synthesis of resole phenolic (CPF) resins. The modified phenolic resins (CPF) were prepared at various molar ratios of total Phenol to Formaldehyde (F : P ratio) and with different weight ratios of Phenol to Cardanol. CPF resins with a maximum content of 40 wt % of Cardanol were synthesized and used. The CPF resins were applied as a plasticizer and toughening agent to the base PF resins. Both resins (CPF/PF) were mixed in different proportions, and their thermal and mechanical properties were then established. A full miscibility of the two resins was observed with the formation of a single-phase system. An increase in the content of Cardanol resulted in a propor- tional increase of the flexural strength and fracture tough- ness together with a decrease of the flexural modulus of the cured CPF/PF resins. Further increased plasticizing and toughening effect was also observed by the blending of the CPF resins with propylene glycol. The higher tough- ness and flexibility effect of the CPF resins was obtained with a F : P molar ratio equal to 1.25 and with a Cardanol content of 40% (w/w).
Connotative and Denotative Meaning of a Poem Entitled: ‘Membaca Tanda-Tanda’ on Environmental Devastation: An Ecocriticism

The dependence of human beings on the natural environment for continuance and prosperity is by nature, an accomplished fact. This study sheds the light on the role of a poem in responding to an environmental destruction. It applies a qualitative content analysis method which place the emphasis on the recording, grouping, analysing, describing, and summarizing. It is demonstrated here that the poet conveys the criticism using both connotative and denotative meaning to deliver messages. Taufik Islamail here, had appealed to the government and society that it is so urgent to preserve our nature from natural disaster as there has been a lot of irregularities and misbehaviour in exploiting the natural resources that may cause environment devastation and natural disaster. It implicitly reveal that the power of languages in a poem enable to develop sympathy and empathy of human beings to actively get involved in natural conservation
HAIR TONIC FORMULATION OF CLOVE LEAVES (SYZYGIUM AROMATICUM) ETHANOL EXTRACT AND THE EFFECTIVENESS ON RABBIT HAIR GROWTH

Objective: The purpose of this study was to determine the physical stability and effectiveness of hair growth in hair tonic preparations containing ethanol extract of clove leaves (Syzygium aromaticum) with a concentration variation of 5, 10, and 15%. Methods: Formulations were evaluated, including organoleptic observation, pH checking, and preparation stability tests using the Climatic Chamber. The effectiveness of clove leaf extract as a hair tonic was tested by looking at hair growth in test animals. Results: The results showed that the preparation was stable at high temperatures (40±2 °C) where the odor, color, clarity, and pH remained constant. Effectiveness test on rabbit hair growth showed significantly different results after measuring hair growth on the 21st day, where the results were 11.83+0.06 mm for positive control, 1.71+0.06 mm as blank, 1.69+0.06 mm for the group without treatment, and successively the results of the group given clove leaf extract 5, 10, and 15% were 4.00+0.06; 4.80+0.06; and 5.46+0.08 mm. Conclusion: Hair tonics containing clove ethanol extract can increase rabbit hair growth.
PENGARUH PIJAT KAKI TERHADAP RESIKO JATUH PADA LANSIA : SYSTEMATIC REVIEW

Background: Falling in the elderly is the most common thing in the elderly. Therefore the elderly need the right intervention to prevent falls. Foot massage is one of the interventions that can help the elderly overcome these health problems. Objective: to assess the effectiveness of foot massage on the balance of the elderly by looking at the duration of time used, the benefits of giving foot massage, instrument of assessment of balance. Methods: The method of searching articles through electronic databases based on PubMed, Science Direct, Wiley Online, and Google Scholars. Result: The results of a review of six articles consisting of two Randomized Control Trial (RCT) studies and four Quasi-Experiment studies discussed the effectiveness of foot massage on balance. Given the length of time for giving foot massage for 10 minutes for each foot, the most effective assessment of fall risk is to use TUG measurement, as well as some benefits of foot massage including increasing balance which is significantly demonstrated by increasing TUG, increasing flexibility and function balance of ankle joints, and can be a viable alternative treatment for performance improving balance, foot ROM, and foot sensation in diabetic patients with peripheral neuropathy. Conclusion: foot massage is very useful to be done in the elderly to improve health status and can prevent the risk of falling Keywords : Foot Massage, Balance, risk of falling, elderly
Detailed Investigation on Soot Particle Size Distribution during DPF Regeneration, using Standard and Bio-Diesel Fuels

The particle number and size distribution are important aspects to qualify diesel engine emissions, considering that new limits, in term of particle number, are expected for Euro 6 regulations. In this scenario it is important to study particulate matter (PM) emissions, not only during engine normal operating mode, but also during diesel particulate filter (DPF) regeneration processes. The aim of this work is therefore to analyze PM emissions throughout the whole exhaust system of a small displacement Euro 5 common rail automotive diesel engine, during both normal operating conditions and DPF regeneration mode. Because the test engine was equipped with a close-coupled after-treatment system, featuring a Diesel Oxidation Catalyst (DOC) and a DPF integrated in a single canning, the exhaust gas was sampled at the engine outlet, at the DOC outlet, and at the DPF outlet to fully characterize the PM emissions throughout the exhaust line. After a two-stage dilution, the sampled gas was analyzed by means of a TSI.
PREVALENCE OF BREASTFEEDING AND FACTORS AFFECT ITS PRACTICE IN WOMEN ATTENDING PRIMARY HEALTH CARE UNITS IN CAIRO

Background: Breastfeeding is the healthiest way for providing young infants with the nutrients they need. Objectives: To determine the prevalence of breastfeeding among women attending primary health care units in Cairo and identified factors affecting it. Subjects and Methods: A cross-sectional study was conducted among 400 mothers attending in two different primary heath care centers El Tagamoa El Khames and El Zawia. On the other side focus group discussions (FGD) were conducted within the same two primary health care units, they included a total of 33 mothers who participated in four focus group discussion. Results: An interview questionnaire was done to identify the prevalence and factors affecting breastfeeding. The prevalence of breast feeding was 94.5% from which more than half of the infants 66.5% were mixed fed, 28% were exclusively breastfed, and only 5.5% of the infants were not breastfed. There were many factors that negatively affected breastfeeding and had a significant importance in this study including father’s educational level, family income, maternal knowledge about importance of breastfeeding, health education about breast feeding in the hospital and time of breastfeeding initiation within 1- 24 hours after birth. Focus group discussions were done to detect farther factors which affect breastfeeding which include: Mother's belief that her milk was not enough, nipple abrasions and ulcers. Maternal employment act as barrier to breastfeeding was also stated. Conclusion: Many factors affected breastfeeding especially maternal employment which plays a major role in breastfeeding continuation or cessation.
Converging evidence

New languages emerge through interactions among people, yet the role of social network structure in language emergence is not clear, despite research from experimental semiotics, observational fieldwork, and computational modeling. To better understand the effects of social network structure on the formation of conventional referring expressions, we use a silent gesture paradigm that combines the methodological control of experimental semiotics and computational simulations with the naturalistic affordances of the human body, physical environment, and interpersonal communication. We elicited gestural referring expressions from hearing participants randomly assigned to either a richly- or sparsely-connected communicative network. Results demonstrate greater conventionalization among participants in the richly-connected condition, although this effect disappears after accounting for between-condition differences in overall number of communicative interactions. These results provide the first experimental demonstration that communicative network structure causally impacts the conventionalization of referring expressions in human participants, using a communicative modality in which human language naturally arises.
Resonance interactions in acyclic systems. 4. Stereochemistry, energetics, and electron distributions in 3-center-four-.pi.-electron systems A:BC

: The origin of the larger formation constants for oximes as compared to imines has been examined theoretically. The structures of the conformers of TV-fluoroacetaldimine (1), acetaldoxime (2), acetaldehyde hydrazone (3), and N-methylacetaldimine (4) have been calculated using the 6-31G* basis set. The formation energies determined at the 6-31+G* level, including correction for zero-point energy differences, increased in the order 4, 3, 2, 1. The larger formation constant for 1 as compared to 3, despite the lower energy of the lone-pair electrons on F as compared to N, shows that resonance stabilization is not the factor that controls the thermochemistry of the processes. The bond and atom properties of the compounds have been investigated, and it was found that the sum of the electron populations on N and its substituent, X, was essentially constant and that the effect of X was to control the ratio of the populations at the two groups. The more stable 1 had an essentially equal charge distribution between N and X. The origins of the differences in formation constants were analyzed with the use of isodesmic reactions, and they appeared to result from differences in lone-pair repulsion between the N and X atoms in the amine reactant and imine product. The question of when -electron delocalization leads to energetic stabilization is discussed. Abstract: The structural properties of a series of acyclic oxocarbenium ions containing the C—0=C atomic linkage have been investigated at the Hartree-Fock and Moller-Plesset ab initio levels with a variety of basis sets up to the 6-311 -H-G* * level. The results from the ab initio calculations provide insight into the extent of charge delocalization in these ions, and have been used to generate parameters for the MM2(87) molecular mechanics program. Two approaches to the incorporation of electrostatic interactions within a molecular mechanical framework are presented and evaluated. An application of the parameter set in the evaluation of the relative stabilities and heats of formation of several experimentally observed acyclic oxocarbenium ions is presented.
GANs enabled super-resolution reconstruction of wind field

Atmospheric flows are governed by a broad variety of spatio-temporal scales, thus making real-time numerical modeling of such turbulent flows in complex terrain at high resolution computationally unmanageable. In this paper, we demonstrate a novel approach to address this issue through a combination of fast coarse scale physics based simulator and a family of advanced machine learning algorithm called the Generative Adversarial Networks. The physics-based simulator generates a coarse wind field in a real wind farm and then ESRGANs enhance the result to a much finer resolution. The method outperforms state of the art bicubic interpolation methods commonly utilized for this purpose.
A Review of Disorder Voice Processing Toward to Applications

Disorder voice processing has great potential to provide convenient, efficient and lowcost applications in medical diagnosis and treatment. For the purpose of a systematic summary of the research progress, this paper introduces it in three terms of research objects, acoustic parameters and features selection, and acoustic model and classification algorithms. It concludes that the appropriate feature selection, feature hybrid and feature offset, integrate with the deep learning frames are the future directions in disorder voice processing.
PHYTOCHEMICAL SCREENING AND BIOLOGICAL EVALUATION OF DYPSIS LEPTOCHEILOS LEAVES EXTRACT AND MOLECULAR DOCKING STUDY OF THE ISOLATED COMPOUNDS

Objective: phytochemical investigation of the ethyl acetate fraction (EAF) of 80% aqueous methanol extract (AME) of Dypsis leptocheilos leaves, in addition to evaluation of the antioxidant, cytotoxic and antimicrobial activities of the AME and EAF. Docking was used to predict and understand cytotoxicity of the isolated compounds. Methods: The ethyl acetate fraction (EAF) of Dypsis leptocheilos leaves was subjected to different chromatographic separation techniques. Structures of the isolated compounds were established by different spectroscopic techniques (1H/13C NMR). Antioxidant activity was evaluated by DPPH assay, while cytotoxicity was evaluated by MTT cell viability assay. Antimicrobial activity was evaluated by agar diffusion method. The docking study was conducted using Auto Dock Vina; the estrogen receptor (PDB 5t92) was used as a receptor for the docking. Results: Chromatographic separation techniques were led to the isolation of five phenolic compounds; these compounds were identified to be apigenin 8-C-β-D-glucopyranoside (Vitexin) (1), apigenin 6-C-β-D-glucopyranoside (Isovitexin) (2), luteolin 7-O-β-D-glucopyranoside (3), luteolin 8-C-β-D-glucopyranoside (Orientin) (4), luteolin 6-C-β-D-glucopyranoside (Isoorientin) (5). They were isolated and identified for the first time from this plant species. The AME and EAF showed moderate activity against Gram positive and Gram negatvie bacteria, while both of them showed similar and powerful antioxidant activity with SC50 = 12.8±0.56 µg/ml and SC50 = 17±0.77 µg/ml respectively, compared to ascorbic (reference drug) SC50 = 14.2±0.35 µg/ml. The EAF showed higher cytotoxic activity on the MCF-7 cells (human breast cancer cell line), with IC50 = 12.3 ± 1.82 µg/ml, compared to Vinblastine Sulfate (reference drug). All isolated compounds showed good binding affinity to the estrogen receptors existed in the MCF-7 cell. Conclusion: Five phenolic compounds were isolated for the first time from the EAF of Dypsis leptocheilos leaves. The AME and EAF extracts showed variable antioxidant, antimicrobial and cytotoxic activities.
Characterisation of odour‐active compounds in lupin flour

BACKGROUND: Lupin ingredients are promising alternatives to soybean products owing to their similarly high protein content. Lupin flour exhibits a green and bean-like off-flavour in higher amounts. The aim of this study was to characterise and identify the main odour-active compounds in lupin flour. RESULTS: The orthonasal aroma of lupin flour was evaluated by means of aroma profile analysis and was found to be characterised by grassy-green, metallic, fatty, fruity, hay-like, cheese-like, and meat-like odour qualities. Volatile compounds of lupin flour of Lupinus angustifolius cv. Boregine were extracted with dichloromethane and isolated by solvent-assisted flavour evaporation. Aroma extract dilution analysis (AEDA) was carried out with the obtained extract. In total, 50 odorants were detected by high-resolution gas chromatography–olfactometry. AEDA revealed 26 odour-active compounds with flavour dilution factors higher or equal to 32. The substances were unequivocally identified by their odour characteristics, their retention indices and their mass spectra using one-dimensional or two-dimensional gas chromatography–mass spectrometry, respectively. CONCLUSION: A series of unsaturated and saturated aldehydes, ketones, carboxylic acids, alkyl-methoxypyrazines and terpenes were identified for the first time as odour-active contributors to the aroma of lupin flour. Copyright © 2009 Society of Chemical Industry
From Open Educational Resources to Open Educational Practices

During the past twenty years Open Educational Resources (OER) and Open Educational Practices (OEP) have increased educational access and affordability worldwide. The OER-OEP synergy reflects one of the most promising strategies for increasing access to education globally. Despite significant progress, emerging research suggests the need for a more concerted focus on moving from awareness raising to implementation. This article analyses the current status of OER and OEP in concert with the recent educational response to COVID-19 by educational providers with complimentary mini-case studies from Africa, Brazil, Canada, China, Sweden, and Turkey. The ICDE Ambassadors for the global advocacy of OER, and members of ICDE OER Advocacy Committee (authors) argue that in the six countries studied, there is a greater need and greater receptivity to expand access to education through OER and OEP. To better address the immediate needs of the COVID-19 educational crisis, and to make longer term educational improvements, countries should harness the policy supports and actionable steps offered by the UNESCO OER Recommendation. Currently, we see an opportunity to move OER-OEP to resilient sustainable education and the international policy framework to support such work. The article concludes with some general observations for the way forward.
Recrystallization induced in situ nanostructures in bulk bismuth antimony tellurides: a simple top down route and improved thermoelectric properties

Recrystallization induced in situ nanostructure formation was used as a new means to obtain high performance polycrystalline thermoelectric materials, which was realized by a simple hot forging process to the coarse-grained Bi0.5Sb1. 5Te3 alloys. The pole figure measurement showed that the oriented textures were weakened or eliminated after hot forging of the alloys with a quasi-layered crystal structure, implying the presence of deformation recrystallization. Transmission electron microscopy observation revealed the recrystallization induced in situ nanostructures and high density of defects in the hot forged samples. Transport property measurements indicated that the hot forged samples had both increased electrical power factor and reduced thermal conductivity, compare to the initial alloys without hot forging. The maximum ZT values of >1.3 at room temperature were reproducibly obtained for the hot forged samples, suggesting that the simple new method can be applied for large scale production of high performance polycrystalline thermoelectric materials with in situ nanostructures.