Investigation of the role of writing-to-learn in promoting student understanding of light–matter interactions

2018 ◽  
Vol 19 (3) ◽  
pp. 807-818 ◽  
Author(s):  
Alena Moon ◽  
Eleni Zotos ◽  
Solaire Finkenstaedt-Quinn ◽  
Anne Ruggles Gere ◽  
Ginger Shultz

Fundamental quantum chemistry concepts—quantization of energy, electronic structure, and light–matter interaction—are essential for understanding chemistry and spectroscopy, an important tool for studying molecules. However, very few studies have investigated how students learn and understand these concepts or how their learning can be supported. Drawing on the capacity of writing to support learning of difficult concepts, we designed an intervention that targeted quantum concepts in the context of the use of spectroscopy for identifying chemical composition of the Orion Nebula. A quasi-experimental design with a pre-post assessment on a control and treatment group was used to identify the gains associated with completing the WTL activity. Results from a three-tiered assessment show that WTL students significantly improved in their explanations of the concept of spectroscopic transitions and their overall confidence in their understanding. Analysis of their writing, follow-up interviews, and feedback served to explain the changes observed on the pre-post assessment.

Nano Letters ◽  
2015 ◽  
Vol 15 (5) ◽  
pp. 3172-3180 ◽  
Author(s):  
Anshuman Kumar ◽  
Tony Low ◽  
Kin Hung Fung ◽  
Phaedon Avouris ◽  
Nicholas X. Fang

2019 ◽  
Vol 8 (1) ◽  
Author(s):  
Jiajia Zhou ◽  
Bolong Huang ◽  
Zheng Yan ◽  
Jean-Claude G. Bünzli

Abstract Machine learning has provided a huge wave of innovation in multiple fields, including computer vision, medical diagnosis, life sciences, molecular design, and instrumental development. This perspective focuses on the implementation of machine learning in dealing with light-matter interaction, which governs those fields involving materials discovery, optical characterizations, and photonics technologies. We highlight the role of machine learning in accelerating technology development and boosting scientific innovation in the aforementioned aspects. We provide future directions for advanced computing techniques via multidisciplinary efforts that can help to transform optical materials into imaging probes, information carriers and photonics devices.


2013 ◽  
Vol 13 (3) ◽  
pp. 543-553 ◽  
Author(s):  
Ingela Beck ◽  
Ulf Jakobsson ◽  
Anna-Karin Edberg

AbstractObjectives:The aim was to investigate the effects of an intervention that applies a palliative care approach in residential care upon nurse assistants' level of strain, job satisfaction, and view of leadership.Method:A quasi-experimental, pretest and posttest design was used. Study circles with workshops involving nurse assistants (n = 75) and their superiors (n = 9) focusing on emotional and existential issues in palliative care were evaluated using a questionnaire answered by the nurse assistants at baseline (November 2009), post-intervention (May 2010), and six-month follow-up (November 2010) in comparison with controls (n = 110).Results:Directly after the intervention, the job satisfaction of the nurse assistants decreased and they perceived the leadership more negatively than before the intervention. Six months later, strain as a result of criticism from residents and their superiors and having difficulty in balancing emotional involvement had decreased.Significance of results:The intervention initially seemed to decrease the well-being of the nurse assistants, which could be the result of their increased awareness of the residents' and relatives' needs, in combination with limited support. More emphasis should be placed on the role of leadership when implementing changes in practice.


Crisis ◽  
2016 ◽  
Vol 37 (2) ◽  
pp. 130-139 ◽  
Author(s):  
Danica W. Y. Liu ◽  
A. Kate Fairweather-Schmidt ◽  
Richard Burns ◽  
Rachel M. Roberts ◽  
Kaarin J. Anstey

Abstract. Background: Little is known about the role of resilience in the likelihood of suicidal ideation (SI) over time. Aims: We examined the association between resilience and SI in a young-adult cohort over 4 years. Our objectives were to determine whether resilience was associated with SI at follow-up or, conversely, whether SI was associated with lowered resilience at follow-up. Method: Participants were selected from the Personality and Total Health (PATH) Through Life Project from Canberra and Queanbeyan, Australia, aged 28–32 years at the first time point and 32–36 at the second. Multinomial, linear, and binary regression analyses explored the association between resilience and SI over two time points. Models were adjusted for suicidality risk factors. Results: While unadjusted analyses identified associations between resilience and SI, these effects were fully explained by the inclusion of other suicidality risk factors. Conclusion: Despite strong cross-sectional associations, resilience and SI appear to be unrelated in a longitudinal context, once risk/resilience factors are controlled for. As independent indicators of psychological well-being, suicidality and resilience are essential if current status is to be captured. However, the addition of other factors (e.g., support, mastery) makes this association tenuous. Consequently, resilience per se may not be protective of SI.


2013 ◽  
Author(s):  
Francesca Menegazzo ◽  
Melissa Rosa Rizzotto ◽  
Martina Bua ◽  
Luisa Pinello ◽  
Elisabetta Tono ◽  
...  

Author(s):  
S Ioanitescu ◽  
L Micu ◽  
A Rampoldi ◽  
N Masala ◽  
V Marcu ◽  
...  

2019 ◽  
Vol 118 (11) ◽  
pp. 80-88
Author(s):  
Ramyar Rzgar Ahmed ◽  
Hawkar Qasim Birdawod ◽  
S. Rabiyathul Basariya

The study dealt with tax evasion in the medical profession, where the problem was the existence of many cases of tax evasion, especially tax evasion in the income tax of medical professions. The aim of the study is to try to shed light on the phenomenon of tax evasion and the role of the tax authority in the development of controls and means that reduce the phenomenon of tax evasion. The most important results of the low level of tax awareness and lack of knowledge of the tax law and the unwillingness to read it and the sense of taxpayers unfairness of the tax all lead to an increase in cases of tax evasion and in suggested tightening control and follow-up on the offices of auditors, through the investigation and auditing The reports of certified accountants and the use of computers for this purpose in order to raise the degree of confidence in these reports and bring them closer to the required truth and coordination and cooperation with the Union of Accountants and Auditors and inform them about each case of violations of the auditors and accountants N because of its great influence in the rejection of the organization of the accounts and not to ratify fake accounts lead to show taxpayers accounts on a non-truth in order to tax evasion.


2019 ◽  
Vol 2 (6) ◽  
pp. 145-148
Author(s):  
Sumesh Kumar ◽  
Sarita Bagaria ◽  
Moirangthem Sonia ◽  
Kailash Kumar Khandelwal

Decision of organ donation has enormous potential to save countless lives and health team play a vital role in counselling of patients and their family in decision making regarding organ donation in the ultimate stage of life. For this reason, evaluation of factors which can enhance knowledge and positive attitude towards organ donation has paramount importance. Present study aims to assess the knowledge and attitude of adults regarding organ donation and to find out role of video assisted teaching in behaviour modulation. Data from 80 participants were collected using a structured knowledge questionnaire. Pre-assessment was done before intervention of video-assisted teaching and post-assessment was done following that. Data were analyzed through SPSS software using Spearman’s Rank Co-relation. We found a negative co-relation (rK= -0.1122) between knowledge & attitude of adults regarding organ donation before video-assisted teaching regarding organ donation. A direct and positive co-relation (rK=+0.294) was observed between knowledge and attitude of adults regarding organ donation after video assisted teaching. We found that video assisted counselling provided by the medical team has great potential in promoting actions regarding organ donation. It is recommended that video assisted counselling should be applied to enhance knowledge and attitude regarding organ donation among general population.


Author(s):  
Putri Ananda Sari ◽  
Abdul Kadir ◽  
Beby Mashito Batu Bara

This study aims to determine the role of the Ombudsman of the Republic of Indonesia in North Sumatra Representative in the Supervision of Population and Civil Registry Service in Medan City. This study uses a qualitative approach with descriptive methods describing information about the data obtained from the field in the form of written and oral data from the parties studied. Data is collected based on interviews and documentation. The results of this study indicate that the role of the Ombudsman of the Republic of Indonesia in North Sumatra was carried out in the form of external supervision. External supervision is supervision carried out by the Ombudsman of the Republic of Indonesia Representative of North Sumatra to the Medan Population and Civil Registry Service. Actions taken in the supervision process are incoming reports, follow-up of the first report and follow-up of the report. Based on the research that has been carried out, it has been concluded that the role of the Ombudsman of the Republic of Indonesia in the North Sumatra Representative in supervising the service provider of the Population and Civil Registry services is carried out in the form of external supervision. In supervising the handling of public reports of alleged poor service in the area of population administration, it has been effective, with several efforts to handle reports such as: (1) Clarification; (2) Investigation; (3) Recommendations; (4) Monitoring.


Author(s):  
Sanjeeva Kumar Goud T ◽  
Rahul Kunkulol

The present study was aimed to study the effect of Sublingual Vitamin D3 on Serum Vitamin D level in Vitamin D deficiency patients. This was a cross-sectional and interventional study. All the Vitamin D deficiency patients of age 18-60years and either gender, willing to participate in the study were included. Patients who had greater than 20 ng/ml were excluded from the study. The total number of participants in our study was 200, out of these 111 males and 89 females, the mean age in our study was 51.07 ± 7.39Yrs. All volunteers were given sublingual vitamin D3 (60,000IU) in six doses every fifteen days of follow up for 3 months. The subject’s serum 25(OH)D levels were estimated before and after the treatment of sublingual vitamin D3. There was a statistically significant difference in serum vitamin D3 level before 16.61±6.71 ng/ml and after 35.80±7.80 ng/ml after treatment with Sublingual Vitamin D3. Six doses of 60,000IU of Vitamin D3 sublingual route having improved the role of serum 25(OH)D levels in the treatment of Vitamin D3 deficiency patients.Keywords: Vitamin D3; Sublingual route


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