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The Art of Empowered Leadership: Guiding Teams Towards Success
Get PDFThe concept of leadership, which is based on the existence of humanity and has been extremely influential in the life, development, and emergence of positive or negative events for thousands of years, has remained up-to-date in every environment and in every period, on which studies and research have been carried out for centuries. The understanding of leadership in businesses shapes all kinds of strategies and policies of companies. For an effective management system in organizations, the most important issue that needs to be emphasized is undoubtedly the employee-employer, manager-managed, in other words, subordinate-superior relationships. Today, the main problem in organizations is that both subordinates and superiors shift their authority and responsibilities to different areas and go beyond what is supposed to be. By avoiding taking responsibility, subordinates cause superiors to behave as they wish, by thinking in the logic of “however, there is someone who rules”. This research, it is aimed to examine the relationship between leadership and superior-subordinate relations and to shed light on future academic studies in light of the information obtained as a result of literature reviews
A Comprehensive Review of Bloom’s Taxonomy Integration to Enhancing Novice EFL Educators’ Pedagogical Impact
Get PDFBloom’s Taxonomy is a logically sequenced structure depicting the cognitive skills required for students to grasp knowledge comprehensively and meaningfully. The integration of Bloom’s Taxonomy into education promotes mastering the cognitive skills and analytical ability of learners. In this review article, the significance of integrating the taxonomy into instructional frameworks for novice teachers in the EFL context was explored. This article also aims to signify the importance of using Bloom’s Taxonomy as an instructional tool and aid for new teachers to help connect their theoretical knowledge with practical implementation in the classroom setting. Additionally, it focuses to revolve around the following research questions: What are the benefits of integrating Bloom’s Taxonomy into the teaching methods used by English as a Foreign Language (EFL) teachers, and how does it contribute to improving language learning outcomes and teaching effectiveness? Through a thorough examination of existing literature on integrating Bloom’s Taxonomy in the EFL context, this article presents evidence that showcases how Bloom’s Taxonomy empowers novice teachers to create more organized, diverse, and student-oriented lessons. The results of this review analysis demonstrate that using Bloom’s Taxonomy provides EFL teachers with a guide and diverse set of tools to support the development of language skills and cognitive abilities suitable for all types of learners. The review article goes beyond addressing the challenges that novice teachers face, offering a framework that helps new educators master their teaching skills which could result in better language acquisition for EFL students
The Local Anesthetic Activity of Lavandula angustifolia and Eugenia caryophyllata Essential Oils
Get PDFPrevious studies show that Lavandula angustifolia (lavender) and Eugenia caryophyllata (clove) essential oils can help relieve dental pain. Clove oil and lavender oil were tested as topical anesthetics in this study on rabbits, and their effects and likely mechanisms of action were analyzed. Clove oil and lavender oil were extracted by hydrodistillation using a Clevenger-setup apparatus. Topically applying lidocaine, clove oil, or lavender oil topically all significantly reduced corneal sensitivity. The sensitivity of the cornea was successfully reduced by treatments consisting of lidocaine at a concentration of 0.5%, 25 μg of clove oil, and 50 μg of lavender oil. When clove oil is applied topically to the cornea, it produces effects similar to those of a local anesthetic due to the involvement of the cholinergic system. To achieve the desired effect of producing local anesthesia in the cornea of the rabbit, lidocaine, clove oil, and lavender oil were applied topically to the animal. A noticeable local anesthetic effect was produced when sub-anesthetic doses of lidocaine were combined with sub-anesthetic doses of lavender or clove oil
A Validated HPLC-UV-ESI-IT-MS Method for the Quantification of Carnosol in Lepechinia mutica, a Medicinal Plant Endemic to Ecuador
Get PDFThe diphenolic diterpene carnosol was isolated from several species of the family Lamiaceae, including Lepechinia mutica, a medicinal plant endemic to Ecuador. The compound has exhibited high antioxidant, anti-inflammatory, antimicrobial, neuroprotective, and antifungal properties, as well as promising cytotoxicity against prostate, breast, skin, leukemia, and human colon cancer cell lines. In this paper, we developed and validated a simple, accurate, and reliable analytical HPLC-UV-ESI-IT-MS method, carried out on a C18 column, which is potentially suitable to quantify carnosol in plant extracts. The procedure complied with the established ICH validation parameters of analytical range (linearity in the range of 0.19–5.64 μg/g dried leaves; REAVERGE = 4.9%; R2 = 0.99907), analysis repeatability (RSD = 2.8–3.6%), intermediate precision (RSD = 1.9–3.6%), accuracy (estimated as % carnosol recovery in the range of 81 to 108%), and robustness. Finally, the LOD (0.04 µg/mg) and LOQ (0.19 μg/mg) values of carnosol/dried leaves were determined. Using this validated method, the content of carnosol in L. mutica was estimated to be 0.81 ± 0.04 mg/g of dried leaves (0.081%)
Antiangiogenic and Anticancer Potential of Supercritical Fluid Extracts from Nutmeg Seeds; In vitro, Ex vivo and In silico studies
Get PDFBackground: Angiogenesis is a vital process of forming new blood vessels that occurs during several normal physiological processes. It plays a substantial role in tumor growth and cancer by supplying oxygen and nutrients for the proliferating tumors. Nutmeg, the dried seed of Myristica fragrans, is known for its therapeutic properties. This study aimed to investigate the antiangiogenic and cytotoxic properties of nutmeg extracts derived by Soxhlet and supercritical fluid extraction (SFE) using in-vitro, ex-vivo, and in-silico studies. Method: Nutmeg anticancer property was evaluated against breast cancer cell MCF7 and colon cancer cell HCT116 using MTT in-vitro assay. The antiangiogenic property was investigated using 3D ex-vivo rat aorta assays. The chemical composition of nutmeg extract was characterized using GC/TOF-MS. Subsequently, the main compounds in the nutmeg extract were analyzed against the angiogenesis-associated molecules (COX-1, VEGFA, HIF, and EGF) by molecular docking and were compared with tamoxifen and 5-fluorouracil. Results: The SFE extracts exhibited higher antiangiogenic properties than the Soxhlet (IC50 31µg/mL). Nutmeg SFE extract exhibited higher cytotoxicity towards HCT116 than MCF7 cells. Several active compounds, including myristicin, eugenol, safrole, and α-asarone were identified in the nutmeg SFE extracts using GC/TOF-MS. Molecular docking revealed strong interactions between these compounds and angiogenesis molecular mediators. Particularly, myristicin blocked COX-1, VEGFA, HIF, and EGF enzymes, indicating possible binding interactions. Conclusion: This study highlights the limitless possibilities of nature's offerings in advancing human health. Nutmeg's potential compounds lie in their binding models, which have proven to be powerful tools against cancer and angiogenesis. Myristicin, α-asarone, safrole, and eugenol work synergistically to induce antiangiogenic effects, making nutmeg a promising natural source of angiogenesis inhibitors for future anticancer therapies. The Molecular docking result confirmed that the inhibition of COX-1, VEGF-A, HIF, and EGF by nutmeg compounds offers great potential in the treatment and prevention of various angiogenesis diseases
A novel approach to the green synthesis of zinc oxide nanorods using Thymus kotschyanus plant extract: effect of ammonium hydroxide and precursor concentration
Get PDFThis research introduces a pioneering green method for synthesizing zinc oxide nanorods (ZnO NRs) on a glass substrate using Thymus kotschyanus plant extract. The study delves into the intricate effects of ammonium hydroxide and precursor concentrations on the morphology, size, alignment, and crystalline structure of ZnO NRs. Through systematic experimentation, it was found that specific concentrations of these substances play vital roles in the formation and properties of the nanorods. Notably, a low concentration of the precursor coupled with a high concentration of ammonium hydroxide led to well-aligned hexagonal ZnO NRs with a remarkable aspect ratio. Variations in these concentrations were also found to influence the length, diameter, and alignment of the nanorods. The findings were corroborated using a diverse array of analytical techniques, including transmission and scanning electron microscopy, x-ray diffraction, UV–vis spectroscopy, and energy-dispersive x-ray analysis. The UV–vis spectra provided further insights into the optical properties and band gap energy of the ZnO NPs, while EDX analysis confirmed the elemental composition. This work represents a significant advancement in eco-friendly nanomaterial synthesis, providing detailed insights into the controlled fabrication of aligned ZnO NRs. Its innovative approach and extensive investigation into influencing factors make it a valuable contribution to the field of nanoscience
Comparative Study on Corrosion Rates in Concrete made of Recycled-Concrete and Recylced-Brick Aggregate
Get PDFRecycling waste materials play a crucial role in minimizing the environmental impact caused by the concrete industry. However, uncertainties exist regarding the durability of recycled aggregate concretes when exposed to harsh conditions. This study conducted comparative research on the long-lasting properties of concrete containing recycled aggregates (RA). To produce RA on a global scale, discarded concrete from construction sites was crushed. Various types of concrete mixes were examined, including a control group with only natural aggregates (NA), and others that incorporated NFA and RCA (substituting 20%, 40%, 60%, 80%, and 100% RCA). The investigation focused on measuring the electrical resistivity (ER) in chloride-contaminated environments, which indirectly assesses concrete corrosion rates. The results revealed a decrease in ER with higher levels of RCA incorporation. In terms of corrosion testing, the ER of 100% RCA concrete ranged from 60% to 90% of the ER observed in the control sample. However, the decrease in ER for RFA concrete was significantly greater compared to the RCA concrete. Specifically, one study demonstrated that replacing 20% of the FA with recycled materials reduced the ER by 25%, while utilizing 100% RFA resulted in a reduction of over 60% in ER
Assessment for Learning: Faculty of Education Practices
Get PDFUniversities, especially those in the Kurdish region, frequently struggle with student satisfaction with evaluation techniques. Problems that adversely affect students’ learning and experience include subjective evaluation, a mismatch between the goals of the course and the way they are assessed, and the pressure associated with taking traditional exams. Additionally, the education system is more teacher-centered than student-centered since learners do not receive constructive criticism from teachers on a regular basis and do not have enough opportunities to express their opinions during lectures. The solution that stands out is formative assessment, also known as assessment for learning. The purpose of this study was to investigate formative assessment’s advantages and students’ discontent with Kurdish colleges’ existing assessment practices. To collect data, a quantitative research approach was employed. Students at private and public universities were given access to an online survey. According to the study’s findings, students prefer a range of assessment methods, such as projects, observations, questions, pop quizzes, and written exams. Students additionally indicated that they wished to receive feedback from their teachers. These findings have implications for academic institutions and other education-related stakeholders, as they point to the necessity of using a range of evaluation techniques and giving students insightful feedback
Modified Artificial Neural Networks and Support Vector Regression to Predict Lateral Pressure Exerted by Fresh Concrete on Formwork
Get PDFIn this study, a modifed Artifcial Neural Network (ANN) and Support Vector Regression (SVR) with three diferent optimization algorithms (Genetic, Salp Swarm and Grasshopper) were used to establish an accurate and easy-to-use module to predict the lateral pressure exerted by fresh concrete on formwork based on three main inputs, namely mix
proportions (cement content, w/c, coarse aggregates, fne aggregates and admixture agent), casting rate, and height
of specimens. The data have been obtained from 30 previously piloted experimental studies (resulted 113 samples).
Achieved results for the model including all the input data provide the most excellent prediction of the exerted lateral
pressure. Additionally, having diferent magnitudes of powder volume, aggregate volume and fuid content in the mix
exposes diferent rising and descending in the lateral pressure outcomes. The results indicate that each model has its
own advantages and disadvantages; however, the root mean square error values of the SVR models are lower than
that of the ANN model. Additionally, the proposed models have been validated and all of them can accurately predict
the lateral pressure of fresh concrete on the panel of the formwork
OPTICAL SOLITON SOLUTIONS FOR THE NONLINEAR THIRD-ORDER PARTIAL DIFFERENTIAL EQUATION
Get PDFIn this paper, the Riccati-Bernoulli (RB) sub-ODE method is used to find the solitary wave solutions for a third-order nonlinear partial differential equation (NLPDE). The traveling wave transformation along with RB sub-ODE equation is used to convert the third-order NLPDE to the set of algebraic equations. Solving the set of algebraic equations generates the analytical solution of the third-order NLPDE. The RB sub-ODE method is a powerful and simple mathematical tool for solving complex NLPDE. The solitary wave solutions obtained play a vital role in mathematical physics