scholarly journals STEM Integration: Factors Affecting Effective Instructional Practices in Teaching Mathematics

2020 ◽  
Vol 16 (1) ◽  
pp. 56
Author(s):  
Nor Syazwani Mohd Rasid ◽  
Nurul Akmal Md Nasir ◽  
Parmjit Singh A/l Aperar Singh ◽  
Tau Han Cheong

Malaysian Ministry of Education (MOE) has created initiatives in the Malaysian Education Blueprint (2013- 2025 that aim to increase teachers’ and students’ competencies in Science, Technology, Engineering and Mathematics (STEM) subjects and create learning experiences that will prepare students for the considerable array of STEM career fields. There are so many effective instructional practices suggested in integrating STEM education for teaching Mathematics. However, there are some factors that need to be concerned in producing effective instructional practices in teaching Mathematics. This study investigated the factors affecting instructional practices of mathematics since the implementation STEM education. Using a descriptive design method, a questionnaire was administered to 100 students and 50 mathematics teachers in Klang Valley. The overall mean score of all four factors (Lesson plan and implementation, Mathematical discuss and sensemaking, task implementation, and classroom culture) measured in this study is moderately high based on students’ and teachers’ perspectives. Teachers rated all factors higher than students’ rate. Both teachers and students agreed that classroom culture is the important factor. There are no significant differences in the mean score of factors among gender of students and teachers. There is a significant difference in the mean score of factors among the achieving abilities among the students. Keywords: STEM Education, Mathematics, Lesson plan, Task, Classroom culture, Mathematical discuss

2016 ◽  
Vol 9 (2) ◽  
pp. 137
Author(s):  
Aprilian Ria Adisti

This study aims at explaining the interactive materials that were needed in Teaching English to Young Learner, creating an English computer game into an interactive material, and examining the effective of the implementation of an English computer game as an interactive material in Teaching English to Young Learner to the first-grade students of elementary school. The study used Research and Development (R&D) adapted from Hutchinson and Water (1987:53-56) and by Borg and Gall (1985). The study had seven stages, they were: (1) conducting a need analysis of the first-grade students, (2) writing the course grid such as lesson plan and map of interactive material, (3) developing preliminary form of English computer game, (4) preliminary field testing by English teacher, English learning expert, and ICT learning expert, (5) revising the English computer game, (6) trying out, and (7) writing the final draft of the use of English computer game for Teaching English to Young Learners. The result of the study showed that students got better achievement in learning English. It could be seen from the result between pre-test and post-test using t-test formula. The result showed t value > t table; 7.165 > 2.021, it meant that there was a significant difference between pre-test and post-test. The post-test was higher that pre-test. The mean of pre-test was 65.2 while the mean of post-test was 87.44. It was also strengthened by the result of the interview which concluded that students liked learning English through this interactive material. 


Author(s):  
Vedamurthy Reddy Pogula ◽  
Ershad Hussain Galeti ◽  
Venkatesh Velivela ◽  
Bhargava Reddy Kanchi

Background: Treatment of the urethral strictures is challenging and with appropriate evaluation preoperatively and surgery planning it is possible to achieve good results. The objective of the study was to evaluate the efficacy of dorsal onlay buccal mucosal graft urethroplasty in treating long anterior urethral strictures.Methods: Between August 2018 to July 2019 a total of 25 patients with anterior urethral stricture were treated with dorsal onlay buccal mucosal graft urethroplasty. Age, etiology of the stricture, stricture length (≤ 7 cm, and > 7 cm), and site of the stricture were assessed as the factors affecting the success rate.Results: The clinical outcome as Success was defined as the patient not needing any form of urethral instrumentation postoperatively. The mean follow-up period was 18 months. Of 25 patients, 22 (92%) were successful and 3 (8%) were a failure. There was no statistically significant difference between the age groups, etiology of the stricture and success rate (p=0.21 and p=0.444). The statistical difference was significant for the site and length of the stricture by means of success (p=0.005 and p=0.025).Conclusions: Our results show stricture length and localization are the most important variables for good success. Because of less failure rate, single-stage dorsal onlay buccal mucosal graft urethroplasty may be offered as an alternative to staged urethroplasty in case of long urethral strictures.  


Parasitology ◽  
1956 ◽  
Vol 46 (1-2) ◽  
pp. 192-215 ◽  
Author(s):  
Ann Bishop ◽  
Elspeth W. McConnachie

1. The emergence of the gametocytes ofPlasmodium gallinaceumfrom the erythrocytes and the exflagellation of the male gametocyte were inhibited completely when infected blood was exposed to an atmosphere of 5 % CO2and 95 % O2, or 5 % CO2and 95 % N2. When these gas mixtures were replaced by air, the gametocytes emerged from the erythrocytes and the male gametocytes exflagellated after approximately the same interval as they did in newly drawn blood exposed to air, or in blood ingested by mosquitoes. If pure CO2were used instead of the gas mixtures containing 5% CO2, the development of the gametocytes, after the replacement of the gas by air, was uncertain.2. The emergence of the gametocytes and exflagellation of the male gametocytes proceeded normally when parasitized blood was exposed to an atmosphere of N2.3. The pH of freshly drawn normal chick blood was 7·38–7·46. The pH of blood exposed to air rose over a 20 min. period of observation, the highest pH recorded being 7·97. No significant difference in pH was observed between normal and heavily infected blood. It was not possible to correlate the stages of development of the gametocytes with precise values of pH of the blood.4. The development of the gametocytes proceeded normally when parasitized blood was mixed with isotonic alkaline Tris buffer to give a pH of approximately 8·0; but it was inhibited, though not completely, when the pH was reduced below that of freshly drawn blood by the addition of isotonic acid buffer. The inhibitory effect of the acid buffer could be completely but not invariably reversed by alkaline buffer.5. 5 % CO2had no inhibitory action upon the gametocytes if the pH of the blood-buffer mixture was 7·62, but when it was 7·20 the inhibitory effect of the gas was complete.6. The emergence of the gametocytes from the corpuscles and the exflagellation of the male gametocytes were completely inhibited when washed, parasitized corpuscles were suspended in isotonic buffer pH 7·78 or 8·20, but this inhibition was completely reversed when the corpuscles were resuspended in plasma. It is concluded that a factor present in plasma is necessary for the development of the gametocytes.7. Further evidence that the pH of the blood, alone, is not the only factor affecting the emergence of the gametocytes and exflagellation of the male gametocytes was obtained from birds treated intravenously with Diamox. When blood from such birds was exposed to air the gametocytes emerged from the corpuscles and exflagellation took place, although the pH of the blood was as low as, or lower than, that of freshly drawn blood.8. The emergence of the gametocytes from the erythrocytes and exflagellation of the male gametocytes were not stimulated by secretions from the stomachs or salivary glands of gorged or unfed mosquitoes.9. The lowest measurement of pH of blood from mosquitoes' stomachs was 7·47 and the highest 7·90, the mean being 7·68, which is slightly higher than that of freshly drawn chick blood. No correlation could be found between the pH of the blood and the length of time since its ingestion by the mosquito.


Children ◽  
2021 ◽  
Vol 8 (10) ◽  
pp. 911
Author(s):  
Kyeong Joo Song ◽  
Min Gi Kim ◽  
Eun Jae Ko ◽  
In Young Sung

Background: The aim of this study is to assess the neurodevelopmental status of infant patients who underwent cardiac surgery in infancy and to investigate the factors affecting the neurodevelopmental status. Methods: This retrospective study included 108 patients who underwent cardiac surgery before the age of one. We used the Bayley Scales of Infant Development II to evaluate the neurodevelopmental status. All patients were analyzed according to the presence of the syndrome. Patients without the syndrome were analyzed according to the presence of brain lesions. Results: The mean mental developmental index (MDI) and the mean psychomotor developmental index (PDI) were 76.11 ± 20.17 and 65.95 ± 18.34, respectively, in the first evaluation, and 73.98 ± 22.53 and 69.48 ± 20.86, respectively, in the second evaluation. In the subgroup analysis, no significant difference was observed between the first evaluation and the second evaluation. Conclusions: No significant difference was observed in the degree of development of the patients in the two evaluation periods. Although the presence of syndrome, brain lesion, or gestational age affected the degree of developmental delay, more than half of the patients had developmental delay in the two evaluation periods in any of the subgroup. Therefore, the necessity of early screening and early rehabilitation intervention is emphasized.


2017 ◽  
Vol 23 (3) ◽  
pp. 290-299 ◽  
Author(s):  
Kyung Sook Cho ◽  
Eun Hee Lee ◽  
Haeng Mi Son

Purpose: The purpose of this study is to investigate nurses' role conflict and intention to remain and to identify factors that may influence this intention. Methods: Data were collected from 172 nurses in a 600-plus bed hospital on nurses' intention to remain, which included 47 items and nurses' role conflict, which included 82 items from a self-reported questionnaire. Data were analyzed by descriptive statistics and stepwise multiple regression using SPSS 22.0 Results: The mean of the role conflict frequency was 2.71(${pm}.39$) and the mean severity was 2.86 (${pm}.47$). The most significant item among the items of intention to remain was "a nurse's job is to help people." The intention to remain employed showed a significant difference in the duration of desired working period and subjective job satisfaction. The subjective job satisfaction of nurses was the most influential variable as a factor affecting the intention to remain, followed by frequency of role conflict in nursing practice. Conclusion: These results suggest that inadequate nursing environments in nursing practice require improvement and support the idea that nurses with positive attitudes of the nursing organization and theirs leaders reduce nurses' related fatigue.


Author(s):  
Vinaykumar R. H. ◽  
Gleeja V. L. ◽  
Gleeja V. L. ◽  
Gleeja V. L. ◽  
Gleeja V. L. ◽  
...  

A large variation in the gestation length can be expected when the gestation is calculated from the day of mating to birth. The present study was designed to assess the influence of different factors like litter size, breed, parity and age on gestation length in bitches. A total of 89 small sized bitches of different breeds having different age, parity and body weight, were selected for the study. The mean age, body weight and parity of the animals included in the present study were 3.00 ± 0.15 years (1 to 8 years), 9.9 ± 0.25 Kg (6 to 15kg) and 1.14 ± 0.10 (0-4th parity) respectively. The mean gestation lengths observed in different small sized breeds were 60.68 ± 0.55, 59.82 ± 0.54, 60.78 ± 1.74, 58.83 ± 1.35 and 58.17 ± 0.74 in the Pug, Beagle, Dachshund, French Bulldog and the Spitz, respectively. The mean litter size in the study was 4.34 ± 0.13 with a range of 2-8. The mean gestational length in animals having ? 3 litter size was 60.83 ± 0.64 days and 59.90 ± 0.43 days in animals having >3 litter size. Age limit of the animals ranged from 1 to 8 years with a mean of 3 ± 0.15 years. The mean gestation length in bitches aged ?3 years was 60.21 ± 0.23 days (n=63) and this was 60.15 ± 0.3 (n=26) days in bitches in the >3 years group. Mean gestational length observed in nulliparous bitches was 60.86 ± 0.4 days (n=29), while in multiparous bitches it was 59.90 ± 0.5 days (n=60). From the present investigation it could be concluded that no significant difference exists in gestational length between different breeds, litter size, age group and parity.


2013 ◽  
Vol 70 (1) ◽  
pp. 57-60 ◽  
Author(s):  
Djordje Culafic ◽  
Miroslav Markovic ◽  
Radmila Obrenovic ◽  
Dragana Mijac

Background/Aim. Homocysteine (2-amino-4-mercaptobutyric acid) is an amino acid that may be found in small quantities in all cells, and is quantitatively the major methionine metabolite. The most prevalent form is protein-bound homocysteine (about 80%), mostly to albumins. If catabolism of homocysteine is impaired either due to enzyme defect or deficiency of required intracellular cofactors, homocysteine accumulates in cells and reaches the circulation. The aim of our study was to determine homocysteine values and factors affecting homocysteine metabolism in patients with liver cirrhosis. Methods. The prospective study included 35 patients with liver cirrhosis and 30 age and sex matched healthy controls. All the examinations were based on: medical history, physical examination, laboratory tests including serum homocysteine levels and liver biopsy. The degree of liver failure was assessed according to the Child-Pugh classification. Results. The mean plasma homocysteine levels were much higher in the patients with liver cirrhosis than in the healthy controls (t-test, p < 0.001). There was no significant difference between the plasma homocysteine concentration and etiology of liver cirrhosis (ANOVA, p > 0.05). Correlation analysis showed a positive correlation between the homocysteine and creatinine concentrations and between the serum albumin and homocysteine values, (Pearson's correlation, p < 0.01, and p < 0.05 respectively). Conclusion. In liver cirrhosis, the genesis of homocysteinemia is multifactorial, influenced significantly by impaired catabolic liver function, renal failure and hypoalbuminemia.


2021 ◽  
Author(s):  
Manabu Yamamoto ◽  
Akika Kyo ◽  
Kumiko Hirayama ◽  
Takeya Kohno ◽  
Dirk Theisen-Kunde ◽  
...  

Abstract The purpose of this study was to investigate the factors of clinical outcome of selective retina therapy (SRT) for central serous chorioretinopathy (CSC). This retrospective study included 77 eyes of 77 patients, who were treated with SRT for CSC and observed at least 6 months after the treatment. SRT laser (527 nm, 1.7 µs, 100 Hz) was used for treatment. The mean best-corrected visual acuity (BCVA) (logMAR), central macular thickness (CMT) and central choroidal thickness were changed from baseline to at 6-months follow-up with significant difference. The multivariate analyses found that the rate of change (reduction) in CMT was associated with focal leakage type on fluorescein angiography (FA) (p = 0.03, coefficient 15.26, 95% confidence interval 1.72 – 28.79) and larger baseline CMT (p < 0.01, coefficient -0.13, 95% confidence interval -0.13 – -0.05). Complete resolution of subretinal fluid was associated with nonsmoking history (p = 0.03, odds ratio 0.276, 95% confidence interval 0.086 – 0.887) and focal leakage type on FA (p < 0.01, odds ratio 0.136, 95% confidence interval 0.042 – 0.437). This result may be useful for predicting the therapeutic effectiveness of SRT.


2021 ◽  
Vol 9 (SPE3) ◽  
Author(s):  
İbrahim Dalbudak ◽  
Serkan Çelik ◽  
Melih Balyan

According to the type of recreational activity that individuals do in their leisure time, the mean score values of the “general scale” and its sub-dimensions do not show a significant difference (p>0.05). As a result of the findings, when the factors that affect the selection of the recreational activity type of the students were examined, it was found that the highest factor was “age-appropriateness”. The statement with the lowest mean in the scale is “healthy life programs on TV”. In addition, it was concluded that the most effective factors in individuals' choices on the recreational activities were that the activities were personally suitable for them and the environment was also suitable.


2021 ◽  
Vol 9 (B) ◽  
pp. 1586-1590
Author(s):  
Rehab Sabry ◽  
Tamer M. Kolib ◽  
Marwa Ahmed ◽  
Heba G. Elnahas

BACKGROUND: Mastalgia is a common complaint in females aged 30–50 years. Mastalgia varies in degrees of severity. The quality of life of women may be adversely affected by severe mastalgia. It was associated with disturbance in sexual, social, and physical activities and behaviors. AIM: The main objective of this study is to investigate factors affecting mastalgia. METHODS: This is an analytical cross-sectional study. Conducted on 148 females attending the Family Medicine outpatient clinic. Mastalgia was assessed by new breast pain score. RESULTS: The mean age of patients was 32.6 and their mean body mass index (BMI) was 24.8. The majority of the cases were highly educated 48% and working 58.1%. There was a highly statistically significant difference between females with mild pain and those of moderate to severe pain regarding to BMI as the mean of BMI in patient with mild pain was 22.7 ± 2.5 while it was 27.6 ± 3.1., there was highly statistically significant difference between both groups as regards to the type of the contraception used that means females who used hormonal contraception had more pain. After logistic regression the only remaining significant factor was BMI 0.001. CONCLUSION: There are many factors affecting mastalgia as BMI, type of contraception, menstrual regularity, menstrual duration, breast pain duration, and premenstrual symptoms. But BMI is the most important factor affecting mastalgia.


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