Multiscale Kinetic Monte-Carlo for Simulating Epitaxial Growth

We present a fast Monte-Carlo algorithm for simulating epitaxial surface growth, based on the continuous-time Monte-Carlo algorithm of Bortz, Kalos and Lebowitz. When simulating realistic growth regimes, much computational time is consumed by the relatively fast dynamics of the adatoms. Continuum and continuum-discrete hybrid methods have been developed to approach this issue; however in many situations, the density of adatoms is too low to efficiently and accurately simulate as a continuum. To solve the problem of fast adatom dynamics, we allow adatoms to take larger steps, effectively reducing the number of transitions required. We achieve nearly a factor of ten speed up, for growth at moderate temperatures and large D/F.Comment: 7 pages, 6 figures; revised text, accepted by PR

Evaluasi Potensi Jalur Trekking Hutan Pendidikan USU, Taman Hutan Raya Bukit Barisan, Kabupaten Karo (Evaluation of Potential Tracking Rute at Educational Forest of USU, Bukit Barisan Grand Forest Park, Regency of Karo)

Educational Forest of USU has many interesting objects, unfortunately it has not had development activity yet that can support Educational Forest of USU as a ecotourism destination. Therefore, a research about potential evaluation of ecotourism had been conducted at track of Educational Forest of USU in July – August 2012. This research aimed to evaluate the potential use of track of Educational Forest of USU for ecotourism activities. The research was conducted by using force field analysis method to decide supporting factors and obstacle factors that influenced at Educational Forest of USU. Usu has many ecotourism potencies such as the beauty of nature, flora and fauna. Educational Forest of USU has excellent potential to be developed as a tourist area and needs a great strategy from the administrator to be an interesting ecotourism region

Pengaruh Peran Total Quality Management dan Kompensasi terhadap Kualitas Sumber Daya Manusia PT. Djarum (Studi Kasus pada Pabrik Bl 53 Kudus)

PT Djarum is one of the biggest where the production and operational takes place in Kudus. This research intended to find out impact role of total quality management (X1) and Compensation (X2) to the human resource quality (Y) of BL 53 Factory PT Djarum Kudus. The type of this research is explanatory research, with the population all of BL 53 Factory employee with total of 644 employees. 87 respondents used as sample which counted with Slovin Formula with simple random sampling technique. data collection techniques are interview and questioner. data analysis technique using validity test, reliability test, simple linear regression, double linear regression, T test and F test with SPSS 21.0. Based on regression equation and correlation coefficient can be seen that quality management and compensation had impact to the human resource quality. From the determination coefficient total quality management had 60,8% and compensation had 59,1% of human resource quality.. In Conclusion the better or higher application of either total quality management and compensation will increase the human resource quality

Social capital and burnout among mental healthcare providers

Background: Provider burnout is a critical problem in mental health services. Contributing factors have been explicated across three domains: personal, job and organizational characteristics. Of these, organizational characteristics, including workplace environment, appear to be particularly important given that most interventions addressing burnout via the other domains (e.g. bolstering personal coping skills) have been modestly effective at best. Aims: This study builds on previous research by using social capital as a framework for the experience of work social milieu, and aims to provide a richer understanding of how workplace social environment might impact burnout and help create more effective ways to reduce burnout. Methods: Providers (n = 40) taking part in a larger burnout intervention study were randomly selected to take part in interviews regarding their workplace environment and burnout. Participant responses were analyzed thematically. Results: Workplace social milieu revolved around two primary themes: workplace social capital in provider burnout and the protective qualities of social capital in cohesive work teams that appear to mitigate burnout. Conclusions: These results imply that work environments where managers support collaboration and social interaction among work teams may reduce burnout

Pengembangan Lembar Kerja Mahasiswa Berbasis Eksperimen Materi Enzim Mikroba pada Bahan Ajar Bioteknologi Mikroba

Penelitian ini bertujuan untuk mengembangkan Lembar Kerja Mahasiswa berbasis Eksperimen materi enzim mikroba yang valid untuk bahan ajar bioteknologi mikroba. Pengembangan Lembar Keja Mahasiswa (LKM) mneggunakan Model 4D memiliki 4 tahapan, yaitu define, design, develop, dan disseminate. Pada penelitian ini hanya terbatas pada tahap develop. Analisis data menggunakan statistic deskriptif untuk menentukan kriteria kevalidan sebuah produk yang dikumpulkan melalui lembar penilaian yang diisi oleh validator Hasil penelitian menunjukkan bahwa validasi dari ahli materi kategori valid dengan nilai persentase 88,33%, validasi dari ahli media dengan persentase 85,83% dengan kategori valid dan ahli bahasa dengan persentase 76,67% dengan kategori valid dan uji keterbacaan oleh mahasiswa dengan nilai persentase 84,50% dengan kategori valid. Kesimpulan dari penelitian ini bahwa LKM berbasis eksperimen materi enzim mikroba yang dikembangkan valid untuk bahan ajar bioteknologi mikroba

Burnout in Mental Health Services: A Review of the Problem and Its Remediation

Staff burnout is increasingly viewed as a concern in the mental health field. In this article we first examine the extent to which burnout is a problem for mental health services in terms of two critical issues: its prevalence and its association with a range of undesirable outcomes for staff, organizations, and consumers. We subsequently provide a comprehensive review of the limited research attempting to remediate burnout among mental health staff. We conclude with recommendations for the development and rigorous testing of intervention approaches to address this critical area

BREATHE: A Pilot Study of a One-Day Retreat to Reduce Burnout Among Mental Health Professionals

OBJECTIVE: Staff burnout is a frequent problem for mental health providers and may be associated with negative outcomes for providers, consumers, and organizations. This study tested an intervention to reduce staff burnout. METHODS: Community mental health providers were invited to participate in a day-long training session to learn methods to reduce burnout. A Web-based survey was given at time of registration, before the intervention, and again six weeks later. RESULTS: Eighty-four providers participated in the training, and follow-up data were available for 74. Six weeks after the day-long training, staff reported significant decreases in emotional exhaustion and depersonalization and significant increases in positive views toward consumers. There were no significant changes in providers' sense of personal accomplishment, job satisfaction, or intention to leave their position. Ninety-one percent of the staff reported the training to be helpful. CONCLUSIONS: This brief intervention is feasible, is acceptable to staff, and may improve burnout and staff attitudes

Optical High Content Nanoscopy of Epigenetic Marks Decodes Phenotypic Divergence in Stem Cells

While distinct stem cell phenotypes follow global changes in chromatin marks, single-cell chromatin technologies are unable to resolve or predict stem cell fates. We propose the first such use of optical high content nanoscopy of histone epigenetic marks (epi-marks) in stem cells to classify emergent cell states. By combining nanoscopy with epi-mark textural image informatics, we developed a novel approach, termed EDICTS (Epi-mark Descriptor Imaging of Cell Transitional States), to discern chromatin organizational changes, demarcate lineage gradations across a range of stem cell types and robustly track lineage restriction kinetics. We demonstrate the utility of EDICTS by predicting the lineage progression of stem cells cultured on biomaterial substrates with graded nanotopographies and mechanical stiffness, thus parsing the role of specific biophysical cues as sensitive epigenetic drivers. We also demonstrate the unique power of EDICTS to resolve cellular states based on epi-marks that cannot be detected via mass spectrometry based methods for quantifying the abundance of histone posttranslational modifications. Overall, EDICTS represents a powerful new methodology to predict single cell lineage decisions by integrating high content super-resolution nanoscopy and imaging informatics of the nuclear organization of epi-marks.National Institutes of Health (U.S.) (Grant GM110174