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Impact of Positive Relationships on Learners’ Achievement
Kashfi Butt 한국공공가치학회 2024 공공가치연구 Vol.7 No.-
Purpose: This study is primarily pivoted on the Behaviour for Learning Framework exploring a learner’s connection with self, others, and eventually with the curriculum. Behaviour for Learning (B4L) establishes the link between learner’s social behaviour employing the critical incident technique (CIT) for this study. Method: The modus operandi of this technique involves identifying and investigating critical incidences that occurred during the teaching practice to obtain qualitative information about significant incidents with firsthand experience. Hence, this observational research involves systematically observing and documenting phenomena, behaviours, or events to gather data and gain insights The obtained data is further analysed to develop understanding and devise action plans for people, systems and modified frameworks. A detailed literature review of reflective models is carried out to organise observations during and after occurrences of these multiple incidents which led the way to ponder over and look for solutions through analysis and synthesis. For instance, Schon’s ‘Reflection in Action’ and ‘Reflection on Action’ imply taking a deeper insight into what we do in the classroom, contemplating why we do it - a cycle of self-perception and self-assessment. Brookfield’s Model of Four Lenses uses the lens of a Colleague’s opinion endorsing the co-teaching Models. The lens of literature review can be a true companion in the research to validate or revoke assumptions and observations. Tripp’s (1993) method involved a concept of “Critical Incidents” that emerge out of observations of what occurs inside the rooms of our institutes and further explained that a critical incident does not necessarily have to be something extremely bad or risky; rather “important”. This study borrowed Gibbs Reflective Model to examine and record critical incidents. It enabled the researcher to spot strengths, areas for development and actions that need to be taken based on the conclusion Results: This section further led to develop the main body of this work: Reflective Analysis of three Critical Incidents (CI s) where a detailed analysis is conducted in light of Powel &Todd’s (2014) theoretical framework of Behaviour for Learning. Conclusion: The conclusion was drawn in the last part to evaluate the study and set future directions. It can be predicted that there are great prospects for the enhancement of students’ learning by utilizing the Behaviour for Learning Framework and Reflective teaching as the study coupled with the framework itself puts forward recommendations to consume larger portions of National Policies.
Mohammad Kashfi,Sepehr Goodarzi,Mostafa Rastgou 대한기계학회 2022 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.36 No.1
Nondestructive experiments are widely employed for determining mechanical properties. In this work, a spherical impact test is virtually performed to determine the plastic properties of a thick aluminum plate. The finite element model is validated experimentally, and several simulations are then performed in accordance with the design of the experiment program. Several algorithms, including support vector machine, Gaussian process regression (GPR), and nonlinear regressions (second- and third-order polynomials) as machine learning techniques, are employed to estimate the material plastic properties. The indentation depth and indentation radius are considered as input variables to predict the tangent modulus (TM) and yield stress (YS). Results reveal that the second-order polynomial and GPR methods realize better performance in terms of determination coefficient and root mean square error criteria in assessing YS.
Iravani, Shahrokh,Kashfi, Seyed Mohammad Hossein,Azimzadeh, Pedram,Lashkari, Mohammad Hossein Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.22
Background: Colorectal cancer is the third most common type of cancer in males and the second in females in Iran. Males are more likely to develop CRC than women and age is considered as a main risk factor for colorectal cancer. Prevalence of colorectal cancer has been increasing in Asian countries. Aim: The object of this study was to determine the clinical and pathology characteristics of colorectal polyps in Iranian patients and to investigate the variation between our populations with other populations. Materials and Methods: A total of 167 patients with colorectal polyps were included in our study. All underwent colonoscopy during 2009-2013 and specimens were taken through polypectomy and transferred to pathology. All data in patient files including pathology reports were collected and analyzed by SPSS 16 software. A two-tailed test was used and a P-value of < 0.05 was considered significant. Results: Mean age of participants was $57{\pm}15$. Some 84 were females (50.3%) and 83 males (49.7%). Total of 225 polyps were detected which 119 (52.9%) were in males and 106 (47.1%) were in females. Solitary polyps were observed in 124 patients (74%), 26 (15.6%) had two polyps and 17 (10.1%) with more than two polyps (three to five). Rectosigmoid was the site of most of the polyps (63.1%), followed by 19.6% in the descending colon, 7.6% in the transverse, 5.8% in the ascending, and 3.1% in the cecum, data being missing in two cases. Conclusions: Recto sigmoid was site of most of the polyps. The most prevalent type of lesion was adenomatous polyps detected in 78 (34.7%). Mixed hyperplastic adenomatous type observed in 70 (31.1%). This high prevalence of adenomatous polyps in Iranian patients implies the urgent need for screening plans to prevent further healthcare problems with colorectal cancer in the Iranian population.
Parviz Kahhal,Mohsen Ghasemi,Mohammad Kashfi,Ji Hoon Kim(김지훈) 한국자동차공학회 2021 한국자동차공학회 부문종합 학술대회 Vol.2021 No.6
Friction stir welding method was first developed in 1991 at the British Welding Institute as a solid state bonding method and used for welding aluminum alloys. This method has high energy efficiency and good compatibility with the environment. In general, the frictional stir welding process is suitable for metals that have a low melting point and their melting welding is not of good quality. In this research, multi-objective optimization of mechanical properties in friction welding of AH12 1050 aluminum alloy has been performed experimentally by using a combination of response surface methods and multi-objective particle swarm optimization. Taguchi method was also utilized to design the experimental program with two types of threaded cylindrical and simple tapered pins. Pin diameter, shoulder diameter, tool rotational speed, tool feed and tool deviation angle are selected as process variables, Specimen yield strength, impact toughness, failure strain, and hardness in heat affected zones (retreating and advancing sides) are considered as five objective functions. Finally, the results of optimization and a very good prediction accuracy indicate a very good agreement of the response surface model and experiments.
Purification of bovine liver transglutaminase by gel filtration
Seyyed Mohammad Hossein Razavian,Ali Kashfi and Zohreh Khoshraftar 한국응용생명화학회 2020 Applied Biological Chemistry (Appl Biol Chem) Vol.63 No.1
Transglutaminases (TGases) are enzymes that catalyze transfer of acyl group and covalent crosslinks formation between peptide-bound glutaminyl residues and amino groups. TGases have many industrial applications and have been purified from various sources. TGase was purified from the bovine liver extract by gel filtration on Sephacryl S-200 HR column. TGase activity was measured using CBZ-l-glutaminylglycine & hydroxylamine and the enzyme was characterized with respect to its response to different temperatures, pHs and salt concentrations. TGase was purified by yield 36.7%, had a weight 74 kDa, a high pH (pH = 8) and temperature (45 °C) optimum. The enzyme was observed to be stable at temperatures below 55 °C and was stable within a narrow pH range of 6.5–8.0. Purified TGase showed Ca2+ dependent characteristics and tended to retain activity at a high NaCl concentration. These results revealed that purified TGase can be used as a potential alternative to other sources.