36 research outputs found
Advanced Laparoscopy
Full text linkThe present book, published by InTech, has been written by a number of highly outstanding authors from all over the world. Every author provides information concerning treatment of different diseases based on his or her knowledge, experience and skills. The chapters are very useful and innovative. This book is not merely devoted to urology sciences. There are also clear results and conclusions on the treatment of many diseases, for example well-differentiated papillary mesothelioma. We should not forget nor neglect that laparoscopy is in use more extensively than before, and in the future new subjects such as use of laparascopy in treatment of kidney cysts, simple nephrectomy, pyeloplasty, donor nephrectomy and even robotic laparoscopy will be researched further
Navigation of Teaching Practicum Challenges: An Emerging Perspective of Pre-Service Teachers
Full text linkThis research explored the challenges prospective teachers face during the teaching practicum at the University of Education, Attock Campus. The study adopted a qualitative descriptive phenomenological design. A census sampling strategy was deployed comprising 67 prospective teachers. Data collection employed a self-developed open-ended questionnaire, validated through expert evaluations and a pilot study. The collected data were analyzed by thematic analysis (Braun & Clarke, 2012). To ensure the rigor of thematic analysis, inter-coder reliability was established. The study delimited its geographical scope to the University of Education Attock Campus and focused on B.Ed. (Hons) 4-year teacher education program seventh-semester participants. Theoretical underpinning was drawn from the constructivist perspective. Results show that prospective teachers faced diverse challenges during their teaching practicum. These challenges included placement, orientation, classroom management, administrative cooperation, lesson planning and implementation, workload, evaluation process, transportation, feedback, school timetable, portfolio, evaluation processes, and inadequate facilities. Despite these challenges, prospective teachers highlighted the importance of supervision, modern teaching methods, and improved resources. Enhancing the teaching practicum involves setting up laboratory schools with theory-practice integration, immersive classroom experiences, and applied teaching techniques
Commitment to autogamy in Paramecium blocks mating reactivity: Implications for regulation of the sexual pathway and the breeding system
No full textCommitment to autogamy blocks mating reactivity in Paramecium. Cells which had previously developed mating reactivity, lost reactivity 30–90 min prior to the preautogamous fission. Mating reactivity develops at a standard level of starvation when cells are allowed to exhaust their food supply naturally. In abruptly starved cultures, mating reactivity appears 3.3 h after downshift. Autogamy is also triggered by starvation. The level of starvation required for initiation of autogamy decreases progressively as cells age. When the autogamy starvation threshold drops to such a low level that all cells become committed to autogamy before any of them develop mating reactivity, reactivity does not occur under natural starvation conditions and the period of maturity for conjugation has come to an end. There is no absolute immature period for autogamy.Peer reviewedFinal article publishe
Evaluation of the Curricula of Emerging Technologies under DAE: Perceptions of Stakeholders
No full textAbstrac
Advanced Laparoscopy
No full textThe present book, published by InTech, has been written by a number of highly outstanding authors from all over the world. Every author provides information concerning treatment of different diseases based on his or her knowledge, experience and skills. The chapters are very useful and innovative. This book is not merely devoted to urology sciences. There are also clear results and conclusions on the treatment of many diseases, for example well-differentiated papillary mesothelioma. We should not forget nor neglect that laparoscopy is in use more extensively than before, and in the future new subjects such as use of laparascopy in treatment of kidney cysts, simple nephrectomy, pyeloplasty, donor nephrectomy and even robotic laparoscopy will be researched further
LC Ladder Based Orthonormal Filter for Impulse-Radio UWB Pulse Generation.
No full textIn this thesis, a UWB pulse generator is designed to be implemented in IBM 0.13 um technology. The pulse generator has a high spectral efficiency. Using amplitude control, any mismatch, process variation or temperature variation can be compensated for to comply with the UWB FCC mask. The pulse has an approximate duration of 2ns. The current consumption is 13mA per pulse. The power consumption per pulse is 19.5 mW. The next stage can be a power amplifier or an antenna. In case of an antenna, the effect of bond pads and bond wires are taken into account. A challenging aspect of UWB systems is their interference with narrow-band systems. Narrow-band systems send very high power signals compared to the UWB signals and thus may saturate the UWB receiver and/or prevent reliable detection of the UWB pulses. A possible solution to this problem is filtering. In this thesis, a Wireless Local Area Network (WLAN) band rejection filter for UWB applications is designed using IBM 0.13 um technology. A new filter topology is used to implement the filter. This topology has the ability to actively read all the states of an LC filter without using extra inductors. Both AC and impulse responses are presented. The filter has a notch of approximately 14dB. It can operate over the military temperature range (-40 C to 125 C). The effects of mismatch and process variations on this design are acceptable.Microelectronics & Computer EngineeringElectrical Engineering, Mathematics and Computer Scienc
Implementation of Focus on Form in a Task-Based Language Teaching Context in the United Arab Emirates EFL Middle School Setting
Full text linkTask-based language teaching (TBLT) has been researched from various perspectives for more than two decades. While research into the theoretical background of the framework and the design and implementation of tasks is growing worldwide, there is little experimental research in the Gulf area and, in particular, the United Arab Emirates (UAE). This study investigates the implementation of TBLT in an intermediate English as a foreign language (EFL) classrooms context in the UAE, focusing specifically on how teachers focus on form (FonF) in their teaching practice. The study explores the differences between four teachers when they introduced meaning-oriented tasks based on the textbook and two learning outcomes (LOs) proposed by the Department of Education and Knowledge (ADEK). The study also investigates teachers’ views and perceptions towards the TBLT framework, FonF, and the prescribed textbook. It also examines the views of students towards their classroom teachers’ implementation of FonF and the challenges and constraints facing the implementation of TBLT and FonF in the UAE. Adopting a mixed-methods experimental study approach, the data set included a total of one unit taught by four teachers on the same theme, with individual lesson plans and teaching materials. Data were collected from classroom observations, field notes, and documentation of students’ work, as well as interviews with teachers and surveys for both teachers and students. Results show that teachers differed in their teaching practice along four dimensions: (a) the successful fulfillment of the LOs; (b) the type of FonF employed; (c) strategies used in FonF; and (d) the possibility of implementing TBLT successfully in their teaching. All teachers and students agreed that form was important for language learning and mastering. Further, teachers agreed on the efficiency of TBLT as a teaching and learning approach, but time-consuming. Additionally, teachers found the textbook a useful resource but not useful enough when they have to prepare extra materials to fulfill the LOs required by ADEK. Students also found the textbook a great resource for learning form and believed that it offered sufficient explanation for the targeted structures. Further, challenges and limitations that face implementing TBLT in the UAE are: (a) lack of motivation (b) the gap between students\u27 current level of proficiency and the required level; (c) class size; (d) sticking with the learning outcomes; (e) time; and (f) the effect of L1. Findings imply that the most important factors that contribute to enhancing language learning are not the task or the pedagogic framework of the textbook per se, but rather the teachers’ successful understanding of the framework and their reactions to students’ needs in the classroom. It is expected that findings of the study will influence the instructional practices of teachers so as to better teach language form in their classrooms and help students achieve grammatical competence, which is an essential part of language proficiency. It may also help curriculum developers and material designers to amend the existing textbooks to best fit students’ needs. Additionally, this study creates more research opportunities in the context of intermediate EFL school classrooms in the UAE. It is hoped the study will emphasize the benefits of implementing TBLT in UAE educational settings in terms of quantity (or amount) and quality (or depth) of learnin
Commitment to autogamy in Paramecium blocks mating reactivity : implications for regulation of the sexual pathway and the breeding system
No full textThe ciliate Paramecium tetraurelia exhibits two major developmental pathways - the vegetative cell cycle and the sexual pathway. The latter manifests itself in two forms -autogamy (self- fertilization) and conjugation (cross-fertilization) between cells of complementary mating types. In the normal life history young cells are immature for autogamy, but enter conjugation readily. Autogamy first occurs normally at about 20 fissions of age and conjugation disappears by 25. This study documents and analyzes the two major phenomena underlying this unusual life history. It shows how their interaction produces the observed pattern of immaturity, maturity, and senescence (Fig. 1). There are two principal findings of this study. First that commitment to autogamy leads to rapid loss of mating reactivity and second, that there are different starvation thresholds for initiation of mating reactivity and autogamy. The starvation threshold for initiation of mating reactivity is constant, while that for initiation of autogamy decreases progressively as clonal age increases. During the immature period for autogamy the lag between onset of mating reactivity and induction of autogamy decreases with increasing clonal age. The progressive decrease in the starvation threshold required for induction of autogamy brings about the end of the mature period for conjugation. As autogamy is initiated at progressively earlier stages in the growth of a culture, fewer and fewer cells reach the level of starvation required for initiation of mating reactivity prior to induction of autogamy. When the threshold for induction of autogamy becomes so low that no cells develop mating reactivity prior to entering autogamy, the period of maturity for conjugation is over and autogamy becomes the sole sexual process for the remainder of the life history
Assessing the Navigational Abilities of an Acoustically Active Cannula
No full textabstract: The purpose of this thesis experiment was to design and create an Acoustically Active Cannula (AAC), which is furnished by a piezoelectric crystal placed at its tip that produces an acoustic navigation signal. I tested the functionality of the cannula in vitro and demonstrated its navigational abilities in vivo in anesthetized pigs. This experiment was based upon ultrasound science and technology, and thus some practical experience with conventional (B-mode) and Doppler ultrasound was achieved as well. The results of bench and experimental animal studies indicated proper functionality of the AAC for identification and spatial navigation of its tip with color Doppler ultrasound imaging
EFFECT OF TEST ANXIETY ON STUDENTS’ ACADEMIC PERFORMANCE: A SURVEY STUDY OF PUNJAB SECONDARY SCHOOLS
No full textAbstractThis research inquiry was conducted to probe the consequence of test anxiety on students’ academic performance. The research design was descriptive, while the quantitative research approach adopted for the purpose of collecting and interpreting the desired information. 504 students (252 male and 252 female students) of the 10th class were selected as sample from nine cities of Punjab. The Westside Test Anxiety Scale for measuring test anxiety which was prepared by Richard Driscoll, Ph.D. available on the American Test Anxiety Association web was used to gauge the test anxiety of the students. For statistical investigation and interpretation, Pearson r was exercised. The findings of the study supported the research hypothesis as a significant correlation (r= -.072*) in students with higher anxiety and their academic performance and in students with low anxiety with their academic performance (r= -.083*) was found. The study also hypothesized that as the degree of anxiety raisin the level of academic performance would decline and vice versa. The value of Pearson r showed a significant connection between test anxiety and academic achievement/ performance as p< .05. Thus the null hypotheses of the study were rejected.
