Biodiversity of soil algae in the farmlands of mid-Taiwan

Abstract Background Very little information is available about soil algae in Taiwan. In this study, we investigated for the first time the soil algae inhabiting five types of farmland in mid-Taiwan: rice paddies, vegetable farms, tea plantations, sugar cane farms, and orchards. Results Sixty-four taxa belonging to 33 genera of cyanobacteria, diatoms, green algae, and euglenoids were identified on the basis of fine structures observed under optical and electron microscopes and rDNA sequencing. The majority of the isolates were of the genera Oscillatoria, Navicula, Nitzschia, and Pinnularia. Five species were reported for the first time in Taiwan, namely Microcoleus paludosus, M. subtorulosus, Navicula subminuscula, Nitzschia levidensis, and Ni. pusilla. Conclusions The distribution and diversity of these species was shown to be strongly dependent on habitat, with the highest diversity of green algae in the orchards, a fairly high diversity of diatoms and cyanobacteria in the rice paddies, and a relatively low diversity in the tea plantations and sugar cane farms. The humidity and acidity were the most important environmental factors influencing the diversity of soil algae in these farmlands. </jats:sec

Comparison of breast motion at different levels of support during physical activity

Optical tracking systems have been used in previous studies to capture the motion of the nude breast and breasts in bras, under the assumption that no breast-bra relative movement occurred within the bra. This study compared breast and bra movement through electromagnetic tracking and optical tracking systems to determine the relative breast movement occurring with different breast support and exercise-induced breast discomfort. Total of 30 female participants (mean age: 21.5 ± 2.3 years; cup sizes: A-F) were recruited and their movement at four different levels of breast support was recorded in two motion capture systems for further analysis and comparison. Significant differences between bra and breast vertical displacement were found at all support levels during periods of intense movement (r = 0.556; p < 0.05). Because the greatest bra displacement was observed when participants wore an everyday bra and the greatest breast displacement was observed when participants wore a crop-top bra, there was evident inconsistency in bra and breast motion and a high-impact sports bra was the most effective to reduce breast movement and discomfort among the four types of bras. An electromagnetic tracking system provided direct observation of the actual movement of the breasts, and an optical tracking system enabled us to monitor bra displacement. Significant differences were observed in bra and breast displacement during the intense movements included in this study. The results bring into question the assumption made in previous studies that no relative movement occurs within a breast support garment.This study is supported by Ministry of Science and Technology grants 103-2815-C-006-037-H and 105-2410-H-006-052, TAIWAN, and OT Motion Lab, Department of Occupational Therapy, National Cheng Kung University

A Comparison of Global Knowledge and Abilities between Pre-service Teachers and in-Service Teachers in Taiwan

The purpose of this study is to compare global knowledge and abilities between pre-service teachers and in-service teachers in Taiwan To collect data a questionnaire containing 40 items within four categories was developed and distributed to 537 samples The results indicated that pre-service teachers had more global knowledge than did in-service teachers in global correlation systems and global issues Moreover major and teaching fields had significant differences in global knowledge and abilities The results of this study can be applied to improve teacher education programs for global education and to increase global concerns for teachers in different field

Susceptibility of Human Embryonic Stem Cell-Derived Neural Cells to Japanese Encephalitis Virus Infection

Pluripotent human embryonic stem cells (hESCs) can be efficiently directed to become immature neuroepithelial precursor cells (NPCs) and functional mature neural cells, including neurotransmitter-secreting neurons and glial cells. Investigating the susceptibility of these hESCs-derived neural cells to neurotrophic viruses, such as Japanese encephalitis virus (JEV), provides insight into the viral cell tropism in the infected human brain. We demonstrate that hESC-derived NPCs are highly vulnerable to JEV infection at a low multiplicity of infection (MOI). In addition, glial fibrillary acid protein (GFAP)-expressing glial cells are also susceptible to JEV infection. In contrast, only a few mature neurons were infected at MOI 10 or higher on the third day post-infection. In addition, functional neurotransmitter-secreting neurons are also resistant to JEV infection at high MOI. Moreover, we discover that vimentin intermediate filament, reported as a putative neurovirulent JEV receptor, is highly expressed in NPCs and glial cells, but not mature neurons. These results indicate that the expression of vimentin in neural cells correlates to the cell tropism of JEV. Finally, we further demonstrate that membranous vimentin is necessary for the susceptibility of hESC-derived NPCs to JEV infection

Nanoscale integration of single cell biologics discovery processes using optofluidic manipulation and monitoring.

The new and rapid advancement in the complexity of biologics drug discovery has been driven by a deeper understanding of biological systems combined with innovative new therapeutic modalities, paving the way to breakthrough therapies for previously intractable diseases. These exciting times in biomedical innovation require the development of novel technologies to facilitate the sophisticated, multifaceted, high-paced workflows necessary to support modern large molecule drug discovery. A high-level aspiration is a true integration of "lab-on-a-chip" methods that vastly miniaturize cellulmical experiments could transform the speed, cost, and success of multiple workstreams in biologics development. Several microscale bioprocess technologies have been established that incrementally address these needs, yet each is inflexibly designed for a very specific process thus limiting an integrated holistic application. A more fully integrated nanoscale approach that incorporates manipulation, culture, analytics, and traceable digital record keeping of thousands of single cells in a relevant nanoenvironment would be a transformative technology capable of keeping pace with today's rapid and complex drug discovery demands. The recent advent of optical manipulation of cells using light-induced electrokinetics with micro- and nanoscale cell culture is poised to revolutionize both fundamental and applied biological research. In this review, we summarize the current state of the art for optical manipulation techniques and discuss emerging biological applications of this technology. In particular, we focus on promising prospects for drug discovery workflows, including antibody discovery, bioassay development, antibody engineering, and cell line development, which are enabled by the automation and industrialization of an integrated optoelectronic single-cell manipulation and culture platform. Continued development of such platforms will be well positioned to overcome many of the challenges currently associated with fragmented, low-throughput bioprocess workflows in biopharma and life science research

Drumhead Surface States and Topological Nodal-Line Fermions in TlTaSe2

A topological nodal-line semimetal is a new condensed matter state with one-dimensional bulk nodal lines and two-dimensional drumhead surface bands. Based on first-principles calculations and our effective k . p model, we propose the existence of topological nodal-line fermions in the ternary transition- metal chalcogenide TlTaSe2. The noncentrosymmetric structure and strong spin-orbit coupling give rise to spinful nodal-line bulk states which are protected by a mirror reflection symmetry of this compound. This is remarkably distinguished from other proposed nodal-line semimetals such as Cu3NPb(Zn) in which nodal lines exist only in the limit of vanishing spin-orbit coupling. We show that the drumhead surface states in TlTaSe2, which are associated with the topological nodal lines, exhibit an unconventional chiral spin texture and an exotic Lifshitz transition as a consequence of the linkage among multiple drumhead surface-state pockets.Comment: Related papers at http://physics.princeton.edu/zahidhasangroup/index.htm

The Relationships among Senior High School Teacher Perceptions on Professional Learning Community, Self-efficacy, School Type, and Gender

Teacher’s professional learning community (TPLC) and self-efficacy(SE) are considered to enhance student learning in various dimensions. Teacher perceived PLC and SE might be influenced by school contexts and teachers’ demographic factors. This study investigated the relationships between teacher’s professional learning community (PLC), self-efficacy (SE), school type, and gender in Taiwan context. The findings are expected to provide valuable information in this field and to enhance understanding of PLC and self-efficacy in different cultural contexts. Descriptive statistics, t-test, product-moment correlation, and multiple regression analysis were applied to analyze the data. The findings indicated that a significant difference was found between public school teachers and private school teachers in two PLC dimensions, core element and human and social resources, and in one SE dimesnion, classroom management. Another significant differences were found between male teachers and female teachers in three SE dimensions, teaching strategy, classroom management, and student involvement. However, no significant differences was found between both in PLC dimesnions. Moreover, perceived PLC and SE were positive correlated. Perceived PLC could predict perceived SE. These results suggested that PLC appears to play a role in teachers’ reported levels of SE and provided initial evidence that the variation between schools in PLC may be explained by the SE. Keywords: Gender, school type, self-efficacy, professional learning community, senior high school teacher

Relationships between Secondary School Students’ Perceptions of School Adjustment and Well-being

The research is financed by the Ministry of Science and Technology, Taiwan. No. MOST 108-2410-               H-018-016-MY2 Abstract Both school adjustment and well-being are fundamental to a good quality of life for youth. Good school adjustment is important and has far-reaching influences on the psychology and behavior of middle school students, which sets the stage for future educational and occupational opportunities. Good mental health or well-being helps young people develop the skills they need to cope with whatever life throws at them. The purposes of this study were to explore the relationships between secondary school students’ perceptions of school adjustment and well-being. 890 secondary students were selected from central Taiwan. A questionnaire was applied to collect data. Data were analyzed by using descriptive statistics, one-way ANOVA, Pearson’s product-moment correlation, and multiple regression analysis. The findings of this study were as follows: First, students’ perceptions of school adjustment and well-being were moderate level. Second, respondents with different family socio-economic status showed significant differences in school adjustment including dimensions of overall, academic adjustment, proper behavior, and self-affirmation, and also showed significant differences in well-being including dimensions of overall, life satisfaction, physical-mental health, and self-evaluation. Third, there was a medium positive correlation between respondents' school adjustment and well-being. The school adjustment could predict well-being and the peer relationship and the self-assurance were the better predictors of well-being. Keywords: Secondary school students, School adjustment, Well-being DOI: 10.7176/JEP/11-30-19 Publication date:October 31st 202

The Relationship between Secondary School Students’ Emotional Intelligence and Learning Motivation

In recent years, emotional intelligence has been highly regarded because of its ability to control emotions, develop talented potential, build high-quality relationships, and have leadership skills. Learning motivation is the motivation of achievement in learning, a psychological need for individuals to pursue success, and also one of the main factors affecting learning achievement. Both of them are very important to young adults. However, rare studies discuss the correlation between middle school students’ emotional intelligence and learning motivation. The purposes of this study were to explore the relationships between secondary school students’ emotional intelligence and learning motivation. Participants were 877 secondary school students selected from central Taiwan. A questionnaire was applied to collect data. Data were analyzed by using descriptive statistics, Pearson’s product-moment correlation, and multiple regression analysis. The findings of this study were as follows: First, the students’ perception of the current situations of emotional intelligence and learning motivation were above a moderate level. Second, there was a positive correlation between emotional intelligence and learning motivation. Third, emotional intelligence could predict learning motivation and the level of self-motivation was the best predictor. Conclusion and discussion were also included in this study. Keywords: Secondary school student, Emotional intelligence, Learning motivation DOI: 10.7176/JEP/12-5-02 Publication date: February 28th 202