scholarly journals Scanning Electron Microscope EDucatorS

1993 ◽  
Vol 1 (2) ◽  
pp. 5-5
Author(s):  
Joseph P. Williams
Keyword(s):  
High School ◽  
High School Students ◽  
Electron Microscope ◽  
Young Adult ◽  
Scanning Electron Microscope ◽  
Everyday Life ◽  
School Students ◽  
The Past ◽  
School Year ◽  
Scanning Electron

Can you imagine the motivational value of a young adult being exposed to images of common day objects that they have an interest in, magnified ten, one hundred, or one thousand times? Then imagine the student learning the theory and operation of a scanning electron microscope. Finally, imagine walking into a laboratory to see these same students operating an SEM and taking their own micrographs.For the past three years I have had the pleasure of teaching the laboratory portion of the SEMEDS program. The program's goal is not just to motivate high school students in science, but to expose them to the wonders of microscopy and how it affects their everyday life.The program currently has three phases. During phase one, teachers from local high schools are contracted about the program. The teachers volunteer at the beginning of the school year then become students themselves during a four hour class.

High-Resolution, Low-Voltage SEM of Cell Wall Regeneration of Yeast Shizosaccharomyces Pombe Protoplasts

1988 ◽  
Vol 46 ◽  
pp. 208-211
Author(s):  
M. Osumi ◽  
N. Yamada ◽  
T. Nagatani
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Low Voltage ◽  
Cell Wall Regeneration ◽  
The Past ◽  
The Poor ◽  
Probe Size ◽  
Beam Damage ◽  
Biological Field ◽  
Scanning Electron

Even though many early workers had suggested the use of lower voltages to increase topographic contrast and to reduce specimen charging and beam damage, we did not usually operate in the conventional scanning electron microscope at low voltage because of the poor resolution, especially of bioligical specimens. However, the development of the “in-lens” field emission scanning electron microscope (FESEM) has led to marked inprovement in resolution, especially in the range of 1-5 kV, within the past year. The probe size has been cumulated to be 0.7nm in diameter at 30kV and about 3nm at 1kV. We have been trying to develop techniques to use this in-lens FESEM at low voltage (LVSEM) for direct observation of totally uncoated biological specimens and have developed the LVSEM method for the biological field.

Binge Drinking and Educational Participation among Youth in the COMPASS Host Study (Year 5: 2016/2017): School Connectedness and Flourishing as Compensatory Factors

2020 ◽  
Vol 12 (3) ◽  
pp. 55-77
Author(s):  
Simone D. Holligan ◽  
Wei Qian ◽  
Margaret De Groh ◽  
Ying Jiang ◽  
Karen A. Patte ◽  
...  
Keyword(s):  
High School ◽  
High School Students ◽  
Binge Drinking ◽  
School Connectedness ◽  
Educational Goals ◽  
School Students ◽  
Educational Participation ◽  
School Year ◽  
Canadian Youth ◽  
Reported Data

The current study investigated resilience factors influencing the associations between binge drinking and measures of educational participation among Canadian youth. Self-reported data were collected during the 2016/2017 school year from 5238 students in Grades 9 through 12 (2744 females, 2494 males) attending 14 secondary schools in Ontario and British Columbia as part of the COMPASS study. Logistic regression analyses were conducted to determine relationships between binge drinking, school connectedness and flourishing on measures of educational participation. Binge drinking was associated with increased likelihood of skipping classes, going to class without completing homework, lower Math and English scores, and having educational and/or training expectations and aspirations beyond high school only. Decreased flourishing was linked to increased likelihood of going to class with incomplete homework, lower Math and English scores, and decreased likelihood of aspiring and expecting to achieve education and/or training beyond high school only. Increased school connectedness was associated with decreased likelihood of skipping classes and going to class with incomplete homework, higher Math and English scores, and increased the likelihood of aspiring to and expecting to achieve education and/or training beyond high school only. Lower flourishing was additive in its effect on current binge drinking in negatively impacting class attendance and homework completion and academic performance, while higher school connectedness was compensatory in its effect on these outcomes. This study suggests that, for high school students who are susceptible to binge drinking, those who are more connected to school and have a higher sense of wellbeing can maintain active participation in school and achieve their educational goals.

Telling Cases That Inform an Understanding of Factors Impacting the Development of Inventors From Diverse Backgrounds

2020 ◽  
Vol 21 (2) ◽  
pp. 133-142
Author(s):  
Stephanie Couch ◽  
Audra Skukauskaite ◽  
Leigh B. Estabrooks
Keyword(s):  
High School ◽  
High School Students ◽  
Young Women ◽  
Gender Gap ◽  
Young Men ◽  
The United States ◽  
Foreign Born ◽  
School Students ◽  
School Year ◽  
Diverse Backgrounds

The lack of diversity among patent holders in the United States (1-3) is a topic that is being discussed by federal policymakers. Available data suggests that prolific patent holders and leading technology innovators are 88.3% male and nearly 94.3% Asian, Pacific Islander, or White, and half of the diversity that does exist is among those who are foreign born (3). The data shows that there is a need for greater diversity among patent holders. Few studies, however, are available to guide the work of educators creating learning opportunities to help young people from diverse backgrounds learn to invent. Educators must navigate issues that have complex sociocultural and historical dimensions (4), which shape the ideas of those surrounding them regarding who can invent, with whom, under what conditions, and for what purposes. In this paper, we report the results of an ongoing multimethod study of an invention education pro- gram that has worked with teachers and students in Grades 6 through 12 for the past 16 years. Findings stem from an analysis of end-of-year experience surveys and interview transcripts of six students (three young men and three young women) who participated in high school InvenTeams®. The data were used to investigate three topics: 1) ways high school students who have participated on an InvenTeam conceptualize the term "failure" and what it means to "learn from failure," 2) what supported and constrained the work of the three young women during their InvenTeams experience and the implications for policy makers concerned about the gender gap in patenting, and 3) ways the young men and young women took up (or didn't take up) the identity of "inventor" after working on a team that developed a working prototype of an invention during the previous school year.

scholarly journals Determinants of waterpipe smoking among high school students in Jakarta, Indonesia

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Ridhwan Fauzi ◽  
Chitlada Areesantichai
Keyword(s):  
High School ◽  
High School Students ◽  
Smoking Status ◽  
Waterpipe Smoking ◽  
School Students ◽  
Factors Associated ◽  
The Past ◽  
Logistic Regressions ◽  
Peer Use ◽  
Waterpipe Use

AbstractObjectivesThe study aimed to examine factors associated with past 30 days waterpipe use among high school students in Jakarta, Indonesia.MethodsWe surveyed a multistage cluster random sample of 1,318 students of grade 10th and 11th from 14 schools in Jakarta. Multiple logistic regressions were employed to examine the association between past 30 days waterpipe use with sociodemographic characteristics, cigarettes smoking status, parental and peer use, availability and affordability.ResultsOf 1,318 participants, 3.3% of female and 8.4% of male currently smoked waterpipe. Multivariate analysis revealed that current waterpipe use was significantly associated with family use (AOR: 4.844, 95% CI: 1.225–19.151), friend use (AOR: 2.554, 95% CI: 1.424–4.582), and availability (AOR: 2.143, 95% CI: 1.127–4.076). Being current smokers were six times more likely (AOR: 6.055, 95% CI: 3.123–11.739) to use waterpipe in the past 30 days.ConclusionsThe finding suggests that smoking by a family member, friends, use of conventional cigarettes, and availability are significantly associated with increased probability of current waterpipe used among adolescents.

scholarly journals Cooling e-cigarette flavors and the association with e-cigarette use among a sample of high school students

PLoS ONE ◽  
2021 ◽  
Vol 16 (9) ◽  
pp. e0256844
Author(s):  
Danielle R. Davis ◽  
Meghan E. Morean ◽  
Krysten W. Bold ◽  
Deepa Camenga ◽  
Grace Kong ◽  
...  
Keyword(s):  
High School ◽  
High School Students ◽  
Age Of Onset ◽  
Binary Logistic Regression ◽  
Cigarette Use ◽  
School Students ◽  
Demographic Differences ◽  
The Past ◽  
Sensory Experiences ◽  
Frequency Of Use

Introduction E-liquid flavor is typically presented by flavor category (e.g. menthol, mint, fruit, dessert). Cooling sensations produced by flavor additives such as menthol enhance appeal of e-cigarettes among youth, but not all e-liquids that produce cooling sensations are labeled as menthol. Sensory experiences produced by flavors may allow for a new way to capture e-cigarette flavor use. This study aims to examine use of flavors that produce cooling sensations among youth and its association with e-cigarette use behaviors. Methods A 2019 survey of high school students (n = 4875) examined use of e-cigarette flavors that produced cooling sensations (cooling flavors) among past 30-day e-cigarette users. E-cigarette use behaviors (flavor use, nicotine use, frequency of use) were examined between those who did and did not use cooling flavors. A binary logistic regression was used to examine associations between vaping frequency, nicotine (vs. non-nicotine) use, and vaping cooling flavors while controlling for demographics, number of flavors vaped in the past month, and vaping age of onset. Results 51.6% (n = 473/916) of the analytic sample endorsed vaping cooling flavors. There were no demographic differences by vaping cooling flavors. Vaping cooling flavors was associated with vaping more frequently (AOR:1.04,95% CI:1.03,1.05) and vaping nicotine (AOR:2.37,95% CI:1.53,3.67). Conclusion Vaping cooling flavors was associated with greater nicotine vaping and frequency of e-cigarette use. Assessing sensory experience, such as cooling, in addition to flavor category may more fully capture e-cigarette flavor use and its impacts on youth e-cigarette use behaviors.

scholarly journals Methodology for studying the information space as an economic categories within the school curriculum

2020 ◽  
Author(s):  
A.V. Mahova ◽  
A.V. Nelipa
Keyword(s):  
High School ◽  
High School Students ◽  
Everyday Life ◽  
School Curriculum ◽  
Information Space ◽  
School Students ◽  
The Impact

The materials of this article include methodological materials that form the basis for an optional course for secondary and high school students, which examines the issues, the nature and characteristics of the information space and the impact of its components on everyday life.

scholarly journals High school students’ perception of bullying as a phenomenon of group action

2019 ◽  
Vol 70 ◽  
pp. 08017
Author(s):  
Elena Harlanova ◽  
Nadezhda Sivrikova ◽  
Inna S. Popova ◽  
Ekaterina A. Lapaeva
Keyword(s):  
High School ◽  
High School Students ◽  
School Bullying ◽  
Point Of View ◽  
Contextual Approach ◽  
School Students ◽  
School Class ◽  
School Year ◽  
The World ◽  
Victims Of Bullying

Bullying is a dangerous phenomenon that affects many modern students around the world. Bullying destructively affects a person regardless of the role (aggressor, observer, victim) and, despite measures to overcome, is present at school. Bullying (from the point of view of the contextual approach) is a social-group phenomenon that accompanies the development of a group with an unconstructive deformation of relationships in it. We conducted a research that reveals how Russian students are prone to bullying, how (taking into account gender and experience of it) are aware of its causes, who can stop bullying and whom they are ready to turn for help to if they become observers or victims of bullying. The results of the study showed that 46.8% of students felt oppressed during the school year (2018-2019). Students realize that the school class can stop bullying, but in a bullying situation they turn to parents, teachers, less to friends, do not mention the school class.

scholarly journals Sexual Violence Perpetration as a Risk Factor for Current Depression or Posttraumatic Symptoms in Adolescents

2020 ◽  
pp. 088626052090802 ◽  
Author(s):  
Amy L. Meadows ◽  
Ann L. Coker ◽  
Heather M. Bush ◽  
Emily R. Clear ◽  
Ginny Sprang ◽  
...  
Keyword(s):  
High School ◽  
Risk Factor ◽  
High School Students ◽  
Sexual Violence ◽  
Posttraumatic Stress ◽  
Public High School ◽  
School Students ◽  
Symptoms Of Depression ◽  
The Past ◽  
Violence Perpetration

Sexual violence perpetration (SVP), including coerced, physically forced, and alcohol- or drug-facilitated unwanted sex, occurs frequently in adolescence and may represent a risk factor for future perpetration. Sexual violence victimization (SVV) has been found to be a risk factor for increased rates of depression and posttraumatic stress disorder (PTSD); however, the associations of SVP with depression or posttraumatic stress symptoms (PTSS) have been less well described. This study examined associations between symptoms of depression and PTSS with SVP in the prior 12 months among high school students. In this cross-sectional analysis, a representative sample of public high school students (ninth–12th grades) completed self-reported surveys on peer SVP and SVV within the past year. Among 16,784 students completing surveys, 7.2% disclosed SVP against another high school student in the past 12 months; 64.4% of students disclosing SVP also experienced SVV. Both SVP and SVV, alone or in combination, were associated with a greater likelihood of symptoms of depression or PTSS. These associations were similar by sex and sexual minority status (e.g., lesbian, gay, bisexual, transgender, and queer [LGBTQ+]). These findings highlight the need for continued primary prevention efforts. Additional screening to recognize adolescent SVP can allow both early treatment of depression and PTSD and address the individual risks of SVP to reduce subsequent repeated sexual assaults.

scholarly journals Teaching of German in Thailand: Past, Present, and Future

MANUSYA ◽  
2006 ◽  
Vol 9 (1) ◽  
pp. 51-80
Author(s):  
Wanna Saengaramruang
Keyword(s):  
High School ◽  
High School Students ◽  
Language Teaching ◽  
Language Teachers ◽  
German Language ◽  
School Students ◽  
History Teaching ◽  
The Past ◽  
Support Organizations ◽  
Teachers And Students

This paper aims firstly to give an overview of the development of German language, teaching in Thailand at both high-school and, university levels from the past up to the, present time, since German has been taught, in Thailand for more than 80 years and its development has not been studied and documented systematically or continuously. The survey and analysis of German teaching, in Thailand in this paper deal with history, teaching approaches, curricula, the development of teaching materials, the number of German language teachers, students, and schools, the attitudes of German language teachers, the expectations of and attitudes towards German teaching among high-school students, and an analysis of the decreasing number of German language teachers and students. Furthermore, this paper also showcases other research works, support organizations, and activities for German language teaching in Thailand.

Sign in / Sign up

Export Citation Format

Share Document