scholarly journals Information Technologies for Biology Education: Computerized Electrophysiology of Plant Cells

2008 ◽  
Vol 7 (1) ◽  
pp. 91-104 ◽  
Author(s):  
Vilma KISNIERIENE ◽  
Kastytis BEITAS ◽  
Vidmantas SAKALAUSKAS ◽  
Algis DAKTARIUNAS
Keyword(s):  
Information Technologies ◽  
Plant Cells ◽  
Biology Education

USEFULITY ANALYSIS OF BIOLOGY EDUCATION UNDERGRADUATE COURSES IN TEACHING PROFESSION

2021 ◽  
Vol 6 (11) ◽  
pp. 55-67
Author(s):  
Buket KOYUNCU ◽  
Tahir ATICI
Keyword(s):  
Information Technologies ◽  
Biology Education ◽  
Teaching Profession ◽  
Field Education ◽  
Professional Life ◽  
Positive Contribution ◽  
Biology Teachers ◽  
General Biology ◽  
Education Courses ◽  
General Culture

The undergraduate education program given depending on the higher education programs is an important factor in the teacher's professional life. Common programs determined by YÖK are applied to teacher candidates in education faculties. The aim of this study is to measure the contribution of the courses in the program to biology teachers in their professional life and to produce new alternatives in the light of the data obtained. In this context, a Likert-type questionnaire consisting of three separate courses as "Vocational Courses", "Field Education Courses", "General Culture Courses" and containing approximately 40 different courses was prepared by taking the expert opinion. Participants were asked to rate the lessons according to the importance of contribution in professional life. Participants consist of biology teachers who are graduates of Faculty of Education and Faculty of Science, who work effectively in their professional life. Participants were reached through digital media and this study was conducted with approximately 160 teachers. According to the study data, among the Vocational Knowledge Courses, the most beneficial lesson is "Teaching Practice". Most of the participants think that this course makes a positive contribution to their professional life. Accordingly, the course hours of this course can be increased. Educational sciences courses are generally carried out theoretically in faculties other than this course, but as can be seen, the effect of applied courses is also great. When looking at the courses that made the most contribution in the "Field Education Courses" section, "General Biology Laboratory", "Zoology Laboratory" and "General Biology" were seen. However, herbarium studies have been proposed in "Cryptogamea" and other plant lessons. It is recommended to add "Field Studies", which is generally accepted as an application within the course in departments, to the curriculum as a course. In the last section, "General Culture Courses", the most contributing course is "Information Technologies Course". In our changing and developing world, this result can be predicted since we cannot consider information technologies and education separately.

Effects of Blackboard Resources Utilization on Students’ Performance in Molecular Biology Course

2020 ◽  
Vol 154 (Supplement_1) ◽  
pp. S149-S149
Author(s):  
B P Kandel ◽  
M Hackfeld ◽  
J Zhang ◽  
F Guo
Keyword(s):  
Molecular Biology ◽  
Undergraduate Students ◽  
Clinical Education ◽  
Information Technologies ◽  
Clinical Laboratory ◽  
Biology Education ◽  
Disease Status ◽  
Disease Diagnosis ◽  
Cross Sectional ◽  
Content Item

Abstract Introduction/Objective Molecular diagnostics utilizes structural and functional fundamentals of molecular biology and finds its scope in clinical education for disease diagnosis and monitoring, and evaluation of non-disease status. Time and financial constraints make molecular biology education challenging for both teachers and students. Advances in information technologies have helped teachers to provide a rich resource to students which if properly utilized is expected to generate better teaching-learning outcomes. However, the pattern of utilization of digital resources by students and its impact on their performance is still unknown. The aim of this study was to assess students’ behavior to Blackboard resource utilization and its impact on their performance in molecular biology course. Methods We conducted a retrospective cross-sectional study including all the 46 students (9 graduate and 37 undergraduate students; 14 distant and 32 regular students) enrolled for molecular biology course in the year 2017 and assessed the associations between blackboard resource visits and students’ final weighted total grades. Blackboard resource visit variables included “Tegrity” viewing duration, viewing times, and contents viewed (“My Grades”, “Announcement”, “Discussion”, “Contacts”, “Content Item”). Results Among all students, the most and least visited contents were “Content Item” (261 average hits) and “Contacts” (1.28 average hits), respectively with similar patterns of the visit among all student sub-categories. The longest average Tegrity viewing duration (25 hours) and the highest average Tegrity viewing times (56 hits) were noted among undergraduate distance students. The average grade was higher among graduate students than undergraduate students. The overall blackboard resource visit and the individual category visit among graduate and undergraduate students had no association with students’ final weighted scores. Conclusion Our findings have important implications for the utility of blackboard resources among graduate and undergraduate clinical laboratory science students. Similar assessments including students from many different years are recommended to generate more accurate evidence.

SEM study of the morphological effects of kinetin and zeatin on the growth and development of the apical meristem in wheat

1995 ◽  
Vol 53 ◽  
pp. 978-979
Author(s):  
G. M. Hutchins ◽  
J. S. Gardner
Keyword(s):  
Growth And Development ◽  
Furfuryl Alcohol ◽  
Apical Meristem ◽  
Plant Cells ◽  
Triticum Aestivum L ◽  
Morphological Development ◽  
Naturally Occurring ◽  
Chinese Spring Wheat ◽  
Sem Study ◽  
Moist Environment

Cytokinins are plant hormones that play a large and incompletely understood role in the life-cycle of plants. The goal of this study was to determine what roles cytokinins play in the morphological development of wheat. To achieve any real success in altering the development and growth of wheat, the cytokinins must be applied directly to the apical meristem, or spike of the plant. It is in this region that the plant cells are actively undergoing mitosis. Kinetin and Zeatin were the two cytokinins chosen for this experiment. Kinetin is an artificial hormone that was originally extracted from old or heated DNA. Kinetin is easily made from the reaction of adenine and furfuryl alcohol. Zeatin is a naturally occurring hormone found in corn, wheat, and many other plants.Chinese Spring Wheat (Triticum aestivum L.) was used for this experiment. Prior to planting, the seeds were germinated in a moist environment for 72 hours.

Confocal microscopy of the cytoskeleton in living plant cells following microinjection of fluorescent probes

1993 ◽  
Vol 51 ◽  
pp. 130-131
Author(s):  
Ann Cleary
Keyword(s):  
Cell Division ◽  
Fluorescent Probes ◽  
Actin Filaments ◽  
Intracellular Transport ◽  
Cell Structure ◽  
Plant Cells ◽  
Cell Plate ◽  
Cell Cortex ◽  
Living Plant ◽  
Rhodamine Phalloidin

Microinjection of fluorescent probes into living plant cells reveals new aspects of cell structure and function. Microtubules and actin filaments are dynamic components of the cytoskeleton and are involved in cell growth, division and intracellular transport. To date, cytoskeletal probes used in microinjection studies have included rhodamine-phalloidin for labelling actin filaments and fluorescently labelled animal tubulin for incorporation into microtubules. From a recent study of Tradescantia stamen hair cells it appears that actin may have a role in defining the plane of cell division. Unlike microtubules, actin is present in the cell cortex and delimits the division site throughout mitosis. Herein, I shall describe actin, its arrangement and putative role in cell plate placement, in another material, living cells of Tradescantia leaf epidermis.The epidermis is peeled from the abaxial surface of young leaves usually without disruption to cytoplasmic streaming or cell division. The peel is stuck to the base of a well slide using 0.1% polyethylenimine and bathed in a solution of 1% mannitol +/− 1 mM probenecid.

Scanning electron microscopy of plant cells using a variable-pressure SEM and cryogenic techniques

1993 ◽  
Vol 51 ◽  
pp. 260-261
Author(s):  
M. Yamada ◽  
K. Ueda ◽  
K. Kuboki ◽  
H. Matsushima ◽  
S. Joens
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Saturated Vapor ◽  
Plant Cells ◽  
Variable Pressure ◽  
Specimen Preparation ◽  
Operating Pressure ◽  
Vapor Pressures ◽  
Low Temperature Microscopy ◽  
Scanning Electron

Use of variable Pressure SEMs is spreading among electron microscopists The variable Pressure SEM does not necessarily require specimen Preparation such as fixation, dehydration, coating, etc which have been required for conventional scanning electron microscopy. The variable Pressure SEM allows operating Pressure of 1˜270 Pa in specimen chamber It does not allow microscopy of water-containing specimens under a saturated vapor Pressure of water. Therefore, it may cause shrink or deformation of water-containing soft specimens such as plant cells due to evaporation of water. A solution to this Problem is to lower the specimen temperature and maintain saturated vapor Pressures of water at low as shown in Fig. 1 On this technique, there is a Published report of experiment to have sufficient signal to noise ratio for scondary electron imaging at a relatively long working distance using an environmental SEM. We report here a new low temperature microscopy of soft Plant cells using a variable Pressure SEM (Hitachi S-225ON).

Efficient initiation of translation at non-AUG triplets in plant cells.

1992 ◽  
Vol 2 (5) ◽  
pp. 809-813 ◽  
Author(s):  
K Gordon ◽  
J Futterer ◽  
T Hohn
Keyword(s):  
Plant Cells ◽  
Initiation Of Translation

Enrichment of vitronectin- and fibronectin-like proteins in NaCI-adapted plant cells and evidence for their involvement in plasma membrane-cell wall adhesion

1993 ◽  
Vol 3 (5) ◽  
pp. 637-646 ◽  
Author(s):  
Jian-Kang Zhu ◽  
Jun Shi ◽  
Utpal Singh ◽  
Sarah E. Wyatt ◽  
Ray A. Bressan ◽  
...  
Keyword(s):  
Cell Wall ◽  
Plasma Membrane ◽  
Plant Cells ◽  
Membrane Cell

Introduction of foreign DNA into walled plant cells via liposomes injected into the vacuole: a preliminary study

1990 ◽  
Vol 79 (1) ◽  
pp. 184-189
Author(s):  
W. J. Lucas ◽  
A. Lansing ◽  
J. R. de Wet ◽  
V. Walbot
Keyword(s):  
Plant Cells ◽  
Preliminary Study ◽  
Foreign Dna
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