Surgical Treatment Of Diaphyseal Femur Fractures

In this article advantages and disadvantages of author's transosseous osteosynthesis methods of diaphyseal femur fractures are described. Sort-term and long-term results of patients treatment with femur fractures are disscusse

Teacher effectiveness in relation to type of ınstitution, emotional ıntelligence and teaching experience

Present study aims at studying the influence of the emotional intelligence, age and qualification on the teacher effectiveness of the teachers. The study population included secondary schools teachers working in Jalandhar and Ludhiana districts of Punjab, India. Using a multi-stage random sampling method, a sample volume of 739 teachers was determined. Two main instruments were used to measure the study variables: a 80-item questionnaire by C R Darolia on emotional intelligence (five scales: Self-awareness, Motivating Oneself, Managing Emotions, Empathy and Handling Relations, and a 60- item Teacher Effectiveness Scale by Kumar and Mutha, 1985. The frequency, mean and standard deviation values were calculated and a 3 way ANOVA analysis was performed to evaluate the statistical significance of the findings. The study results revealed that: (a) Differences in teacher effectiveness of groups of teachers’ based on school type i.e. government and private secondary schools, are not significant. (b) Teachers with low emotional intelligence are less effective in teaching than teachers with high emotional intelligence. c) More experienced teachers are found to be more effective than less experienced teachers. Thus, it can be concluded that emotional intelligence and teaching experience matters in making of a teacher to be effective

Facebook As a Supporting Tool for Enhancing Social Interaction Skills in A Physics Teaching Subject

In 21st century, a lot of importance has been given to information and communication technology (ICTs). Integrating technological tools into a pedagogical world has gained a lot of importance everywhere. During Covid-19 situation, various online platforms are being used to teach the physics subject in schools. But it has been seen that these platforms don’t help to inculcate social interaction skills among students. Social interaction skills comprised of communication skills, collaborative skills, critical thinking skills, problem solving skills etc. This paper highlights the utilization of ICTs and social media platform such as Facebook that helps to develop social interaction skills among Physics students. This paper examines Facebook group as a better alternative in place of LMS. Descriptive survey design was adopted for the study. The population consisted of 100 secondary school students studying Physics subject. A sample was sub-divided into two groups- Facebook group (50 students) and LMS group (50 students). A structured questionnaires tagged Influence of Facebook on Social Interaction Skills Questionnaire and Influence of LMS on Social Interaction Skills Questionnaire were used to collect data from the respondents. Mean and standard deviation were used to analyse the collected data in order to test the hypotheses. The findings revealed that Facebook group usage had significantly positive influence on social interaction skills as compared to LMS group among Physics secondary school students. It was concluded that Facebook when used effectively helped to improve social interaction skills among Physics students. Social media platforms like Facebook can be used to present the e-modules related to subject course in the sequence and provide opportunities to students’ for answering in real time situation. Therefore, this paper emphasis on developing social interaction skills among physics students through collaboration of various ICT tools and social media platforms. Keywords: Physics, Facebook, Social interaction skills, LMS, e-learning environmen

Gata2 in Hematopoietic Cell Generation

The mammalian hematopoietic system is maintained by hematopoietic stem cells (HSC). Whereas in the adult, they reside in the bone marrow, the first HSCs are generated in the main vasculature of the midgestation embryo as a result of tightly regulated extrinsic and intrinsic molecular signals. Transcriptional regulation is pivotal to the establishment of HSC fate during development and the Gata2 transcription factor is central to this process. Genetic deletion of Gata2 shows that it is essential for the embryonic generation of HSCs, hematopoietic progenitor cells (HPC), and also for the establishment of some mature blood lineages, such as mast cells. Although previous studies with HPC/HSC enriched populations indicate the importance of Gata2 in their generation, there has been no direct way for studying Gata2-expressing cells in normal embryonic development, and in in vitro hematopoietic differentiation assays. In this thesis research, I use a novel Gata2Venus reporter embryonic stem cell (ESC) system and mouse model to dissect the role of Gata2 in hematopoietic differentiation and development. I show that Venus expression discriminates progressive stages of hematopoietic cell generation in vitro that are highly analogous to the in vivo waves of hematopoietic cell generation. My results demonstrate the involvement of the Gata2 downstream target, Gpr56 (a putative HSC regulator), in the development of HPCs, and reveal the redundant expression and function of Gpr56 with another G-protein coupled receptor, Gpr97. This redundancy may explain the previous contradictory data in the field regarding the requirement for Gpr56 in HSCs, and opens the way for new strategies to delineate the role of Gpr56 in HSC emergence. In addition to HSCs and HPCs, the mast cell lineage is one of the few mature blood cell types that expresses Gata2. Taking advantage of the Gata2Venus ESC reporter line and human induced pluripotent stem cell (iPSC) lines, I found a novel and powerful approach to rapidly generate mast cells for inflammation and allergy research applications. This thesis research has furthered our understanding of the role of Gata2 in in vivo embryonic development, and in in vitro pluripotent stem cell hematopoietic differentiation approaches, providing the basis for the development of future therapeutic strategies in blood and inflammation research