bluuebunny/crossref_metadata_2025 huggingface dataset:
Application Of The Maldi-Tof Ms Technique For Identification Of Dermatophytes
Authors: Gnat Sebastian , Łagowski Dominik , Nowakiewicz Aneta
Published: October 2020

The MALDI-TOF MS method is a new technique, which is being increasingly used in clinical laboratories for identification of microorganisms. The wide interest in this method has been aroused by its high accuracy, instantaneous identification results, and relatively low cost of analyses. However, the application of this technique for identification of dermatophytes poses difficulties. They are caused by the natural biological complexity of filamentous fungi, very slow growth of cultures, and frequent production of pigments. Furthermore, identification of dermatophytes with this technique is a challenge due to the lack of a clear species definition for some taxa or within certain species complexes. A review of scientific literature indicates that the reliability of identification of dermatophytes based on MALDI-TOF MS is in the range between 13.5 and 100%. This variability is determined by many critical factors associated with routine laboratory procedures, i.e. the type of culture medium, incubation time, protein extraction technique, type of device, or version of the reference spectrum library. Despite these numerous limitations, the MALDI-TOF MS method is part of the significant technical progress in mycological diagnostics and an alternative to the time-consuming and labor-intensive identification of dermatophytes based on morphological traits and DNA sequencing. Nevertheless, before the technique can be implemented into routine diagnostic tests, it is necessary to expand the reference spectra library and develop procedures for direct analysis of dermatological samples.

1. Introduction. 2. Identification of microorganisms using the MALDI-TOF MS method. 3. MALDI TOF MS in mycological identification. 4. Critical factors in identification of dermatophytes with the MALDI-TOF method. 4.1. Impact of the microbiological medium. 4.2. Impact of the incubation time. 4.3. Impact of the protein extraction procedure and preparation of the matrix. 4.4. Impact of the mass spectrometry apparatus. 4.5. Impact of the reference spectrum library. 4.6. Impact of the spectrum comparison algorithm. 4.7. Impact of taxonomic changes. 5. Prospects for the development of MALDI-TOF MS in mycological diagnostics. 6. Summary
A financial performance-based assessment of SMEs’ competitiveness – an analysis of Hungarian and US small businesses
Authors: Csapi Vivien , Balogh Virgínia
Published: October 2020

The study aims to identify the financial performance measures used as a proxy of the firm-level competitiveness dimensions of small and medium-sized enterprises and their competitiveness. By investigating the factors that affect competitiveness in general, those areas will be introduced, related to an identified competitiveness dimension. Financial and non-financial performance indicators will assess these areas. The paper considers competitiveness as an outcome variable, suggests a relationship between financial performance and the identified areas, and searches for the financial performance measures drivers. A panel data model was tested on Hungarian small and medium-sized enterprises (SMEs) and US SMEs. The collected data cover the period between 2013 and 2017. As a result of the applied panel regression, those variables were successfully identified that drive and could predict financial performance measures related to competitiveness. The research found a significant difference between the two-sample dataset results, which differences can be connected to country, industry, and, in general, to economic development characteristics.The results provide decision-making support and hint about the managerial tools and techniques aiming to control the firm characteristics, performance, and, eventually, firm-level competitiveness. Based on the results, further research can be dedicated to the development characteristics of firm-level competitiveness and the analysis of the relationship between the competitiveness dimensions and competitiveness itself. AcknowledgmentThe research was financed by the Higher Education Institutional Excellence Programme of the Ministry for Innovation and Technology in Hungary, within the framework of the 4th thematic programme „Enhancing the Role of Domestic Companies in the Reindustrialization of Hungary” of the University of Pécs.
The Effect of Human Capital on Batik SMEs Innovation: The Mediating Role of Adaptive Creativity
Authors: Handayani Rini
Published: October 2020

The research aimed to examine the role of human capital and adaptive creativity in firm innovation. Using quantitative descriptive methods, the research analyzed 166 batik Small and Medium-Sized Enterprises (SMEs) in Surakarta and Yogyakarta. The sampling technique used was probability sampling methods. The questionnaire as the instrument was sent to the owners of batik SMEs by mail. The data analysis used Structural Equation Modeling (SEM). The results of hypothesis testing show that tacit knowledge and explicit knowledge influence adaptive creativity which affects firm innovation. Individuals who can adapt to tacit and explicit knowledge have good creativity. So, in the end, they can support innovations in the firm. The research findings also strengthen the mediating role of adaptive creativity in the influence of human capital and firm innovation.
Effect of Storage Methods on Various Sorts of Siberian Turnip (Brassica rapa L.)
Authors: Stepanova Alla , Davydenko N. , Golub Olga , Stepanova Elena
Published: October 2020

Introduction. Vegetables are an integral part of human diet. Specialists from many countries of the world develop and improve technologies for storing vegetables in order to ensure the safety, quality, and quantity of commercial products. Turnip is one of the most promising vegetables from the point of view of healthy nutrition. Its production has been revived in recent years. This root vegetable has a high nutritional value and contains a significant amount of physiologically active components. There are regulatory documents for the storage of potatoes, carrots, and cabbage. However, storage standards for turnip are still under development due to the variability of their chemical composition, place of growth, etc. As a result, any rationale for storage methods for fresh and ripened turnips of different varieties grown on farms in the Novosibirsk region is relevant.

Study objects and methods. The research featured fresh and ripened turnips of the “Kometa”, “Luna”, and “Orbita” varieties. Research methods were generally accepted and standard. The samples were stored at 0–1°C and relative humidity of 90–95% on pallets in opened plastic bags, board boxes with plastic liners, and board boxes without liners.

Results and discussion. After 6 months, the method with polymer materials showed the best results, regardless of the variety: the average yield of quality products was 88%. Storage in wooden boxes without plastic liners provided only 70% of standard products. The decrease in the mass during 6-month storage was about 2% when stored in opened plastic bags and board boxes with plastic liners, while in board boxes without liners it was 20.6%. After the latter storage method, 9.8% of root crops appeared affected by microbiological diseases. A similar trend was observed in the content of total sugars: an average loss of 2.7% was detected when using polymer materials and 3.6% – without them. The board boxes with plastic liners proved better in preserving vitamin C: the average loss was 22.3%, while it reached 30.3% for plastic bags and 37.3% for board boxes without liners. After 6 months of storage, all samples maintained satisfactory quality. The sensory properties ranged from 7.01 to 7.94 points. The points were discarded for decreased consistency of epithelial tissues, pulp, taste, and aroma.

Conclusion. The turnips of the “Kometa”, “Luna”, and “Orbita” varieties grown in the Novosibirsk region should be stored at 0–1°C and a relative humidity of 90–95% in plastic bags or board boxes with plastic liners placed on pallets.
Embedded Niche Overlap
Authors: Freibert Finley
Published: October 2020

This article offers an industrial history of yaoi anime’s distribution in the United States by companies that acquired official distribution licenses. During the course of this history, the term “yaoi” was not always dominant in American anime vernacular; rather, it only ascended to widespread American usage after it was adopted by American distributors as an industry term. Yaoi anime’s complex distribution history reveals that, unlike yaoi manga, yaoi anime began and continues to be industrially situated at the overlap of seemingly disparate niche categories.
‘Wolves or People?’
Authors: Boyd David John
Published: October 2020

This essay examines an alternative eco-familial reading of Mamoru Hosoda’s manga film, Wolf Children (2012) through an analysis of Japanese extinction anxieties further exacerbated by 3/11. By reading the film through a minor history of the extinction of the Honshu wolf as a metaphor for 3/11, I argue that an examination of the degradation of Japanese preindustrial “stem family” and the fabulative expression of species cooperation and hybridity can more effectively be framed by the popular Japanese imaginary as a lupine apocalypse. In a reading of Deleuze and Guattari on becoming-animal, the omnipresence of lupine loss in the institutions of the home, work, and schools of contemporary Japan, interrogated in many manga, anime, and video game series like Wolf Children, further reveals the ambivalence of post-3/11 artists as they approach family and the State in seeking out more nonhuman depictions of Japan. In this reading of becoming-wolf, Hosoda’s resituates the family/fairy-tale film as a complex critique of the millennial revival of a nuclear Japan in the age of economic and environmental precarity and collapse. I hope to explore the nuances and contradictions of Hosoda’s recapitulation of family through a celebration of Deleuzo-Guattarian pack affects and an introduction of the possibilities of “making kin,” as Donna Haraway explains, at the ends of the Anthropocene.
Concerns and Misconceptions About the Australian Government’s COVIDSafe App: Cross-Sectional Survey Study
Authors: Thomas Rae , Michaleff Zoe A , Greenwood Hannah , Abukmail Eman , Glasziou Paul
Published: October 2020

Background

Timely and effective contact tracing is an essential public health measure for curbing the transmission of COVID-19. App-based contact tracing has the potential to optimize the resources of overstretched public health departments. However, its efficiency is dependent on widespread adoption.

Objective

This study aimed to investigate the uptake of the Australian Government’s COVIDSafe app among Australians and examine the reasons why some Australians have not downloaded the app.

Methods

An online national survey, with representative quotas for age and gender, was conducted between May 8 and May 11, 2020. Participants were excluded if they were a health care professional or had been tested for COVID-19.

Results

Of the 1802 potential participants contacted, 289 (16.0%) were excluded prior to completing the survey, 13 (0.7%) declined, and 1500 (83.2%) participated in the survey. Of the 1500 survey participants, 37.3% (n=560) had downloaded the COVIDSafe app, 18.7% (n=280) intended to do so, 27.7% (n=416) refused to do so, and 16.3% (n=244) were undecided. Equally proportioned reasons for not downloading the app included privacy (165/660, 25.0%) and technical concerns (159/660, 24.1%). Other reasons included the belief that social distancing was sufficient and the app was unnecessary (111/660, 16.8%), distrust in the government (73/660, 11.1%), and other miscellaneous responses (eg, apathy and following the decisions of others) (73/660, 11.1%). In addition, knowledge about COVIDSafe varied among participants, as some were confused about its purpose and capabilities.

Conclusions

For the COVIDSafe app to be accepted by the public and used correctly, public health messages need to address the concerns of citizens, specifically privacy, data storage, and technical capabilities. Understanding the specific barriers preventing the uptake of contact tracing apps provides the opportunity to design targeted communication strategies aimed at strengthening public health initiatives, such as downloading and correctly using contact tracing apps.
The Interplay Between Policy and COVID-19 Outbreaks in South Asia: Longitudinal Trend Analysis of Surveillance Data (Preprint)
Authors: Welch Sarah B , Kulasekere Dinushi Amanda , Prasad P V Vara , Moss Charles B , Murphy Robert Leo , Achenbach Chad J , Ison Michael G , Resnick Danielle , Singh Lauren , White Janine , Issa Tariq Z , Culler Kasen , Boctor Michael J , Mason Maryann , Oehmke James Francis , Faber Joshua Marco Mitchell , Post Lori Ann
Published: October 2020

BACKGROUND

COVID-19 transmission rates in South Asia initially were under control when governments implemented health policies aimed at controlling the pandemic such as quarantines, travel bans, and border, business, and school closures. Governments have since relaxed public health restrictions, which resulted in significant outbreaks, shifting the global epicenter of COVID-19 to India. Ongoing systematic public health surveillance of the COVID-19 pandemic is needed to inform disease prevention policy to re-establish control over the pandemic within South Asia.

OBJECTIVE

This study aimed to inform public health leaders about the state of the COVID-19 pandemic, how South Asia displays differences within and among countries and other global regions, and where immediate action is needed to control the outbreaks.

METHODS

We extracted COVID-19 data spanning 62 days from public health registries and calculated traditional and enhanced surveillance metrics. We use an empirical difference equation to measure the daily number of cases in South Asia as a function of the prior number of cases, the level of testing, and weekly shifts in variables with a dynamic panel model that was estimated using the generalized method of moments approach by implementing the Arellano–Bond estimator in R.

RESULTS

Traditional surveillance metrics indicate that South Asian countries have an alarming outbreak, with India leading the region with 310,310 new daily cases in accordance with the 7-day moving average. Enhanced surveillance indicates that while Pakistan and Bangladesh still have a high daily number of new COVID-19 cases (n=4819 and n=3878, respectively), their speed of new infections declined from April 12-25, 2021, from 2.28 to 2.18 and 3.15 to 2.35 daily new infections per 100,000 population, respectively, which suggests that their outbreaks are decreasing and that these countries are headed in the right direction. In contrast, India’s speed of new infections per 100,000 population increased by 52% during the same period from 14.79 to 22.49 new cases per day per 100,000 population, which constitutes an increased outbreak.

CONCLUSIONS

Relaxation of public health restrictions and the spread of novel variants fueled the second wave of the COVID-19 pandemic in South Asia. Public health surveillance indicates that shifts in policy and the spread of new variants correlate with a drastic expansion in the pandemic, requiring immediate action to mitigate the spread of COVID-19. Surveillance is needed to inform leaders whether policies help control the pandemic.
Risks and Benefits of Using Social Media in Dermatology: Cross-sectional Questionnaire Study (Preprint)
Authors: Bressler Moshe Y , Grudnikoff Eugene , Bressler Yaakov , Tamez Rebecca , Zampella John G
Published: October 2020

BACKGROUND

Dermatological information on social media is often presented by nondermatologists. Increasing the online engagement of trained dermatologists may improve information quality, patient education, and care.

OBJECTIVE

Our study assesses dermatologists’ perceptions of social media and patterns of use to identify barriers limiting engagement.

METHODS

In our cohort study, a 36-item online survey was distributed to dermatologists in the United States; responses were captured on a 1-100 sliding scale.

RESULTS

Of 166 initiated surveys, 128 valid responses were submitted. Dermatologists showed greater concern for social media risk-related issues (mean 77.9, SD 15.1) than potential benefits (mean 61.8, SD 16.4; P<.001). Leading concerns were poor patient care, nonevidence-based information, and breaching patient privacy. Benefits included interphysician collaboration, patient education, and public health awareness. The most avid and enthusiastic social media users were millennials (mean total optimism score 67.5, SD 14.9) and baby boomers (mean total optimism score 63.1, SD 11.2) compared with Generation X dermatologists (mean total optimism score 52.2, SD 16.3, P<.001). Of 128 dermatologists, 103 (82.4%) plan on increasing their social media use (P=.003). Predictors showing an intent to increase future social media use were younger age, integration into professional use, and an optimistic view (r2=.39; P<.001).

CONCLUSIONS

Dermatologists perceive the risk of social media to be considerable but still intend to increase its use, likely recognizing the value and importance of social media to the field.
Implementing Exercise in Standard Cancer Care (Bizi Orain Hybrid Exercise Program): Protocol for a Randomized Controlled Trial (Preprint)
Authors: Arietaleanizbeaskoa Maria Soledad , Gil Rey Erreka , Mendizabal Gallastegui Nere , García-Álvarez Arturo , De La Fuente Ibon , Domínguez-Martinez Silvia , Pablo Susana , Coca Aitor , Gutiérrez Santamaría Borja , Grandes Gonzalo
Published: October 2020

BACKGROUND

Despite the established benefits of regular exercise for patients with cancer to counteract the deleterious effects of the disease itself and treatment-related adverse effects, most of them do not engage in sufficient levels of physical activity and there is a paucity of data on the integration of efficacious exercise programs that are accessible and generalizable to a large proportion of patients with cancer into routine cancer care.

OBJECTIVE

We intend to examine the effects attributable to the implementation of a community-based exercise program on cardiorespiratory functional capacity and quality of life for patients with cancer.

METHODS

This will be a hybrid study. In the first experimental phase, patients diagnosed with any type of cancer will be randomized into two parallel groups. One group immediately performs Bizi Orain, a 3-month supervised exercise program (3 times a week), in addition to behavioral counseling in a primary health care setting; the other is a reference group that starts the exercise program 3 months later (delayed treatment). In the second observational phase, the entire cohort of participants will be followed-up for 5 years. Any person diagnosed with cancer in the previous 2 years is eligible for the program. The program evaluation involves the uptake, safety, adherence, and effectiveness assessed after completion of the program and with follow-ups at 3, 6, 12, 24, 36, 48, and 60 months. The primary outcomes of the experimental study, to be compared between groups, are improved physical function and quality of life, whereas overall survival is the main objective of the prospective study. To analyze the association between changes in physical activity levels and overall survival, longitudinal mixed-effects models will be used for repeated follow-up measures.

RESULTS

A total of 265 patients have been enrolled into the study since January 2019, with 42 patients from the hematology service and 223 from the oncology service.

CONCLUSIONS

Bizi Orain is the first population-based exercise program in Spain that will offer more insight into the implementation of feasible, generalizable, and sustainable supportive care services involving structured exercise to extend survival of patients with cancer, improve their physical function and quality of life, and reverse the adverse effects of their disease and related treatments, thereby reducing the clinical burden.

CLINICALTRIAL

ClinicalTrials.gov NCT03819595; http://clinicaltrials.gov/ct2/show/NCT03819595

INTERNATIONAL REGISTERED REPORT

DERR1-10.2196/24835
Risk Factors and Leadership in a Digitalized Working World and Their Effects on Employees’ Stress and Resources: Web-Based Questionnaire Study (Preprint)
Authors: Bregenzer Anita , Jimenez Paulino
Published: October 2020

BACKGROUND

In today’s world of work, the digitalization of work and communication processes is increasing, and will increase even further. This increase in digitalization at the workplace brings many new aspects of working life to light, such as working in virtual teams, mobile working, expectations of being constantly available, and the need for support in adapting and learning new digital tools. These changes to the workplace can contain risks that might harm the well-being of employees. Leaders can support the well-being of their employees in terms of protecting and replenishing their work-related resources to cope with critical work demands. This so-called health-promoting leadership could serve as a buffer between risk at the workplace and critical outcomes, such as stress, by amplifying work-related resources.

OBJECTIVE

This study’s aims were twofold. First, we wanted to investigate if risk factors related to higher digitalization at the workplace can be identified and if these risk factors have an impairing effect on the well-being of employees (eg, higher stress and lower resources). Second, we wanted to investigate if the health-impairing effects of these risk factors can be reduced by health-promoting leadership.

METHODS

A total of 1412 employees from Austria, Germany, and Switzerland took part in this online study and provided information on their perceived risks at the workplace, their leaders’ health-promoting behaviors, and their work-related stress and resources.

RESULTS

The results of a hierarchical regression analysis showed that all four risk factors of digital work (distributed team work, mobile work, constant availability, and inefficient technical support) were related to higher stress at the workplace. In addition, distributed team work and inefficient technical support were associated with lower work-related resources. A possible buffer effect of health-promoting leadership between these risks and employee well-being was visible for inefficient technical support. In particular, in the case of having fewer support opportunities in learning and using digital tools, leaders could weaken the potential critical effects on stress. As for the other risk factors, leaders might engage in a different leadership behavior to improve their employees’ well-being, as the physical distance between leaders and employees in virtual team work or mobile work could make health-promoting leadership more difficult.

CONCLUSIONS

In a digitalized working world, solutions are needed to create working conditions that benefit employees. The results of this study strongly support the importance of investigating risk factors associated with an increase in digitalization at the workplace in addition to traditional risk factors. As for leadership, leaders need to show leadership behavior adapted to a digitalized workplace in order to reduce employee stress and increase work-related resources.
An Exploration of Link Functions Used in Ordinal Regression
Authors: Smith Thomas J. , Walker David A. , McKenna Cornelius M.
Published: October 2020

The purpose of this study is to examine issues involved with choice of a link function in generalized linear models with ordinal outcomes, including distributional appropriateness, link specificity, and palindromic invariance are discussed and an exemplar analysis provided using the Pew Research Center 25th anniversary of the Web Omnibus Survey data. Simulated data are used to compare the relative palindromic invariance of four distinct indices of determination/discrimination, including a newly proposed index by Smith et al. (2017).
Logistic Growth Modeling with Markov Chain Monte Carlo Estimation
Authors: Choi Jaehwa , Chen Jinsong , Harring Jeffery R.
Published: October 2020

A new growth modeling approach is proposed to can fit inherently nonlinear (i.e., logistic) function without constraint nor reparameterization. A simulation study is employed to investigate the feasibility and performance of a Markov chain Monte Carlo method within Bayesian estimation framework to estimate a fully random version of a logistic growth curve model under manipulated conditions such as the number and timing of measurement occasions and sample sizes.
Robustness of the EWMA Sampling Plan to Non-Normality
Authors: Mishra U. , Siddiqui S. , Singh J. R.
Published: October 2020

The effect of non-normality on the OC function of the sampling plan under EWMA is studied by deriving the OC function for a non-normal population represented by the first four terms of an Edgeworth series.
COMPARISON OF ENROLMENT IN HIGHER AGRICULTURAL EDUCATION IN POLAND AND OTHER EUROPEAN UNION COUNTRIES FROM 2013–2017
Authors: Kubala Sebastian
Published: October 2020

The aim of the article is to identify changes in the level of enrolment in higher agricultural education in Poland compared with other European Union countries in the years 2013–2017. An additional aspect of study was the causal relationship between the number of people undertaking higher agricultural education and the effectiveness of the functioning of agriculture in a given country. The dynamics ratio was used to present the existing tendencies. Additionally, admissions for individual types of studies were examined and the differences in values from individual countries were presented. Spearman’s coefficient of rank correlation was used to analyze the causative relationship. Poland belongs to a group with relatively low levels of higher agricultural studies. In addition, the number of persons undertaking education at agricultural universities is closely connected with the efficiency of agriculture in a given European Union country.
Short-term and long-term effects of rapid maxillary expansion on the nasal soft and hard tissue:
Authors: Truong Cassie T. , Jeon Hyeran H. , Sripinun Puttipong , Tierney Ann , Boucher Normand S.
Published: October 2020

Objectives

To evaluate nasal soft and hard tissue changes immediately post–rapid maxillary expansion (RME) and to assess the stability of these changes using cone beam computed tomography (CBCT).

Materials and Methods

A total of 35 treatment group (TG) patients (18 girls, 17 boys; 9.39 ± 1.4) had a pre-RME CBCT and a post-RME CBCT approximately 66 days after expansion, and 25 patients had a follow-up CBCT 2.84 years later. A total of 28 control group (CG; no RME) patients (16 girls, 12 boys; 8.81 ± 1.6) had an initial CBCT and a CBCT an average of 2.25 years later. Soft and hard tissue nasal landmarks were measured in transverse, sagittal, and coronal planes of space on CBCT scans. Differences within the same group were evaluated by paired t-tests or Wilcoxon signed-rank tests. Long-term comparisons between TG and CG were evaluated by independent-sample t-tests or Wilcoxon rank-sum tests.

Results

Immediately post-RME, there were statistically significant mean increases of 1.6 mm of alar base width, 1.77 mm of pyriform height, and 3.57 mm of pyriform width (P < .05). CG showed the significant increases over 2.25 years (P < .001). Compared with CG, the long-term evaluation of TG demonstrated only pyriform height and pyriform width showed a statistically significant difference (P < .01).

Conclusions

Although RME produced some significant increase on the nasal soft tissue immediately after expansion, it regressed to the mean of normal growth and development over time. However, long-term evaluation of TG compared with CG showed only pyriform height and pyriform width to be affected by RME.
Enhancement Of Science Learning Outcomes Through Two Stay Two Stray Learning Model Assisted With Mind Mapping Media
Authors: Rahayu Mugi , Sudarma I Komang , Dibia I Ketut
Published: October 2020

The implementation of this research is based on the problems found at the time of observation, namely the difficulty of students learning, especially in science learning that has an impact on student learning outcomes and learning that is still teacher-centered that causes students to be passive. Based on these problems, this study aims to improve the learning outcomes of science students in grade V elementary school. This type of research is a quasi-experimental design with Nonequivalent Control Group Design. The research design used is the post-test only control group design. The population in this study amounted to 147 students consisting of four classes. The determination of the sample is done by random sampling in the form of a draw. The number of samples was 72 students, namely the experimental class totaling 36 students and the control class totaling 36 students. The students' natural science post-test data collection is done by using multiple-choice objective test methods. Then, the t-test formula was analyzed. From the results of the analysis, it was shown that t-count = 3,920 was obtained and compared with t-table at the 5% significance level and dk = 36 + 36-2 = 70 so that the price of t-table = 1.99444 was obtained. Based on these results, there are significant differences in science learning outcomes between the classes given the treatment of the TSTS learning model aided by the mind mapping method and the classes given the treatment of conventional learning models. The results of the calculations obtained the experimental class has a higher mean than the control class, which is 79.06>68.75. Based on this, the TSTS learning model is assisted by an effective mind mapping method to the science learning outcomes of fifth-grade students of elementary school.
Development of Class VI Elementary School Thematic Teaching Materials Based Local Wisdom
Authors: Wulandari Retno , Utaminingsih Sri , Kanzunnudin Mohammad
Published: October 2020

There are no teaching materials used by teachers that can foster moral values in students, so it is necessary to have learning materials that introduce the culture or local wisdom of each region. The purpose of this study was to determine feasibility of thematic teaching materials for elementary school class VI theme 1 based on local wisdom. This research method referred to the theory of Borg and Gall, using seven steps or research implementation, namely potentials and problems, research planning, developing initial product, field testing, revision, validation, and final improvement. The data collection techniques used were observation, interview, and questionnaire techniques. The analysis used in this research is quantitative and qualitative analysis including learning observation and validation of teaching material products. Sources of data in this study were grade VI students and teachers. From the material expert validation process obtained an average result of 3,41 with percentage of 85% and very good category. The validation from linguists obtained 90% result with an average 3,6 and very good category. For the result of teacher responses obtained an average result of 3,85 total score 3466 with very good category. For the result of the response students, the average result was 3,94 and the total score was 568 in the very good category. Based on the result of the validation and reinforced by the result of the responses of student and teachers, the thematic teaching materials based on local wisdom of Rembang were declared suitable for use in the learning process.
Pengembangan Multimedia Pembelajaran Interaktif Berpendekatan CTL Pada Pembelajaran Tematik Siswa Kelas IV SD
Authors: Geni Komang Hendra Yoga Wijaya , Sudarma I Komang , Mahadewi Luh Putu Putrini
Published: October 2020

Rendahnya hasil belajar siswa pada pembelajaran tematik yang disebabkan karena kurangnya ketersediaan media yang relevan merupakan hal yang melatarbelakangi dari dilaksanakannya penelitian pengembangan ini. Penelitian ini bertujuan untuk mendeskripsikan rancang bangun multimedia pembelajaran interaktif berpendekatan Contexstual Teaching and Learning (CTL), dan untuk mengetahui validitas multimedia pembelajaran interaktif berpendekatan Contexstual Teaching and Learning (CTL). Jenis penelitian ini adalah penelitian pengembangan dengan model pengembangan ADDIE. Jenis data dalam penelitian ini adalah data kuantitatif dan kualitatif. Pengumpulan data penelitian menggunakan metode pencatatan dokumen dan metode kuesioner. Teknik analisis data yang digunakan adalah teknik analisis deskriptif kuantitatif, dan deskriptif kualitatif. Hasil penelitian (1) rancang bangun multimedia pembelajaran interaktif berpendekatan kontekstual meliputi 5 tahapan pengembangan yaitu: tahap analisis (analysis), tahap perancangan (design), tahap pengembangan (development), tahap implementasi (implementation), dan tahap evaluasi (evaluation). (2) multimedia pembelajaran interaktif berpendekatan kontekstual dinyatakan valid melalui: (a) review ahli isi pembelajaran memperoleh hasil validitas sangat baik (97,49%), (b) review ahli media pembelajaran memperoleh hasil validitas sangat baik (96,92%), (c) review ahli desain pembelajaran memperoleh hasil validitas sangat baik (97,27%), (d) uji coba perorangan memperoleh hasil validitas sangat baik (96,11%), dan (e) uji coba kelompok kecil memperoleh hasil validitas sangat baik (95,56%).
Pembelajaran IPA dengan Model Problem Based Learning Berbantuan Media Audio Visual Meningkatkan Pemahaman Konsep Siswa
Authors: Kurniawan I Kadek , Parmiti Desak , Kusmariyatni Nyoman
Published: October 2020

Penelitian ini bertujuan untuk menganalisis pengaruh model pembelajaran PBL berbantuan media audio visual terhadap pemahaman konsep IPA siswa kelas V SD. Jenis penelitian yang dilaksanakan merupakan Eksperimen Semu dengan desain penelitian Non-equivalent Posttest Only Control Group Design. Populasi penelitian ini adalah siswa kelas V yang berjumlah 129 siswa. Sampel penelitian berjumlah 81 siswa, yang diambil dengan menggunakan teknik simple random. Data kemampuan pemahaman konsep IPA dikumpulkan menggunakan instrumen tes berbentuk soal objektif (pilihan ganda). Data yang diperoleh, selanjutnya dianalisis menggunakan teknik analisis statistik deskriptif dan inferensial (Uji-t). Berdasarkan perhitungan Uji-t diperoleh data thitung = 2,087 > ttabel = 2,00 pada taraf signifikansi 5% dengan dk = 79. Hal ini berarti, terdapat perbedaan yang signifikan kemampuan pemahaman konsep IPA antara kelompok eksperimen dan control. Jadi, dapat disimpulkan bahwa, terdapat pengaruh yang signifikan model PBL berbantuan media audio visual terhadap pemahaman konsep IPA siswa kelas V SD. Implikasi penggunaan model PBL berbantuan media audio visual, yaitu siswa menjadi aktif dalam mengikuti pembelajaran. Pembelajaran PBL yang mengacu pada permasalahan membuat siswa menjadi terlatih dalam memahami sebuah konsep.
Model Pembelajaran Value Clarification Technique Berbantuan Media Microsoft Powerpoint Untuk Meningkatkan Hasil Belajar PKn
Authors: Sari Dewa Ayu Ratih Purnama , Tegeh I Made , Pudjawan Ketut
Published: October 2020

Pembelajaran yang terpusat pada guru serta kurangnya penggunaan model dan media pembelajaran menyebabkan siswa kurang aktif, dan hasil belajar rendah. Penelitian ini bertujuan untuk mengetahui perbedaan hasil belajar PKn antara kelompok siswa yang dibelajarkan dengan model pembelajaran VCT (Value Clarifications Technique) berbantuan media Microsoft power point dan kelompok siswa yang tidak dibelajarkan dengan model pembelajaran VCT (Value Clarifications Technique) berbantuan media Microsoft power point pada mata pelajaran PKn di kelas IV. Jenis penelitian yang digunakan yaitu eksperimen semu dengan rancangan non equivalent post-test kontrol group design. Populasi dalam penelitian ini adalah siswa kelas IV SD yang berjumlah 156 siswa. Teknik pengambilan sampel yang digunakan dalam penelitian ini adalah teknik cluster random sampling. Sampel dalam penelitian ini berjumlah 47 siswa. Berdasarkan hasil data analisis uji t diperoleh nilai signifikansi 2 arah (2-tailed) 0.000 < 0.05, sehingga H0 ditolak dan H1 diterima. Ini berarti terdapat perbedaan yang signifikan hasil belajar PKn antara siswa yang mengikuti model pembelajaran VCT (Value Clarification Technique) berbantuan media microsoft power point dan yang tidak menggunakan model pembelajaran VCT (Value Clarification Technique) berbantuan media microsoft power point siswa kelas IV.
TTW Model Assisted by Rotating Wheel Media to Improve Elementary Students' Critical Thinking Ability
Authors: Rohmah Nazila 'Ainur , Masfuah Siti , Setiawan Deka
Published: October 2020

This study aims to improve students' critical thinking skills and student learning activities. After they applied the Think Talk Write learning models assisted by rotating wheel media on IV- grade students of SDN Talun 01 with 28 research subjects. This type of research was classroom action research. The research was conducted in two cycles, each cycle consisted of 4 stages, namely, planning, implementing, observing, and reflecting. The independent variable in this study was the Think Talk Write learning model assisted by the rotating wheel media, and the dependent variable was the skill to think critically. The instruments in this study were tests, interviews, observation, and documentation instruments. Data analysis techniques used in this study were quantitative analysis and qualitative analysis. The results of this class action research can be seen from the achievement of the following indicators, namely (1) critical thinking skills, classical completeness of pre-cycle students by 62% (less) and increased on the first cycle by 72% (less), and increased in cycle II by 85% (good). (2) Student learning activities in the first cycle, attitude field, were 73% (less) and increased in the second cycle by 86% (good). Then, student learning activities in the cycle I, skills field were 74% (less) and increased in cycle II by 87% (good). Furthermore, it can be concluded that the application of the Think Talk Write learning model assisted with the 7th theme rotating wheel media about the diverse beauty in my country on IV- grade students of SDN.
Development of Learning Media for Video Audio-Visual Stop Motion Based on Contextual Teaching and Learning in Science Learning Water Cycle Material
Authors: Mufidah Ismah , Nulhakim Lukman , Alamsyah Trian Pamungkas
Published: October 2020

Learning done conventionally often makes students bored and less motivated to learn. In this time of the pandemic, the use of technology-based media such as audio-visual learning videos can become one of the ways for teachers to create effective learning. Audio-visual learning media are developed to make it easier for teachers to deliver learning materials. By developing technology-based media, online learning can be accomplished. The purpose of this research is to know the development and feasibility of media learning audio-visual video stop motion based contextual teaching and learning. The study employs research design and development. The development of audio-visual media videos stops motion based contextual teaching and learning is expected to make online learning during the pandemic more effective, efficient, and useful in elementary school
PERAKITAN PUPUK ALTERNATIF UNTUK BUDIDAYA SAWI PAKCOY (Brassica rapa subsp. Chinensis) DENGAN SISTEM HIDROPONIK RAKIT APUNG
Authors: Tama Aditia Widya , Suprihati Suprihati
Published: October 2020

Pupuk alternatif dapat menjadi solusi untuk budidaya tanaman pakcoy hidroponik tanpa harus menggunakan pupuk Komersial.  Penelitian ini bertujuan untuk menentukan pupuk alternatif yang dapat menghasilkan pertumbuhan dan hasil yang setara dengan pupuk Komersial atau Standart. Penelitian ini dilaksanakan di Kebun Percobaan Kartini, Fakultas Pertanian dan Bisnis, Universitas Kristen Satya Wacana, pada bulan Desember 2019-Februari 2020. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok (RAK), dengan 5 perlakuan (pupuk Standar, pupuk Komersial, pupuk Mas’ud, pupuk Hermawan revisi, dan pupuk Tama). Setiap perlakuan diulang 5 kali. Parameter pengamatan meliputi tinggi tanaman, jumlah daun, bobot segar tajuk, diameter bonggol, dan luas daun. Hasil pengamatan dianalisis dengan menggunakan sidik ragam (uji F 5%), sedangkan Duncan Multiple Range Test dengan selang kepercayaan 95% digunakan untuk uji lanjutnya.  Hasil penelitian menunjukkan bahwa perlakuan pupuk Komersial memberikan hasil bobot segar seberat 265,11gram pertanaman yang tidak berbeda nyata dengan pupuk Mas’ud yaitu 209,52 gram. Sedangkan pupuk Tama berbeda nyata dengan pupuk Komersial dan Mas’ud, tetapi dapat digunakan untuk pupuk alternatif dengan hasil 153,87 gram per tanaman. Kata kunci: hasil, hidroponik, pakcoy, pertumbuhan, pupuk
SISTEM FERTIGASI RAIN PIPE OTOMATIS PADA MAIN NURSERY KELAPA SAWIT (Elaeis guineensis Jacq) BERBASIS MIKROKONTROLER ARDUINO UNO
Authors: Kurniawan Anri , Saputra Tri Wahyu , Ramadan Anugerah
Published: October 2020

This research conducted to designed, implemented, and tested an automatic rain pipe fertigation system using temperature and soil moisture sensors. The system applied to three irrigation treatments, namely manual fertilization, semi-manual fertilization, and automatic fertigation. The automatic fertigation actuator setting point is at temperature of  ≥ 31 ° C and humidity of ≤ 60% to turn on the water pump and nutrient pump then the water pump will shut down when the temperature value of 25 °C and humidity of  ≥ 80%. The results showed a significant difference in the use of irrigation water based on variance test results with an error value of 5%. The use of water from automatic fertigation is 12.770 ml or 65.9% more efficient than manual irrigation with the same growth in plant height. The height of oil palm plants in the main nursery with automatic fertigation is higher on days 7 to 12. Automatic fertilization requires a fertilizer of 1.8 tons per ha, less than manual fertilization which reaches 3 tons per ha. Keywords: fertigation, microcontroller, oil palm, sensors, soil moisture
STUDI PEREMAJAAN TANAMAN KELAPA SAWIT DI AREAL LAHAN TANAH MINERAL DAN LAHAN GAMBUT
Authors: Pramuhadi Gatot , Setiawan Muhammad Aji , Daliesta Nenda Fuji Putri
Published: October 2020

Oil palm trees that are more than 25 years old generally have low productivity of oil palm fruit and will decrease in productivity. For this reason, it is necessary to replant oil palm plants so that their productivity can be maintained high and increased. The aim of this research is to study the technique of replanting oil palm plants in mineral soil areas in the area of Kebun Aek Loba, PT Socfindo, Asahan Regency, North Sumatra Province and in the peatland area of Kebun Mandah Estate, PT Bhumireksa Nusa Sejati, Riau Province. Soil types in the Aek Loba garden area were dominated by mineral soils of the typic hapludult class and made from mother rock tufo toba and young alluvium with a soil pH of 5.5. Mandah Estate plantation area is 100% peat soil with a composition of 74% mature peat (sapric) and 26% medium peat (hemic). Peat is more than 3 meters deep (including very deep peat) and has a crumbly texture so it is easy to erode. The peat soil includes ombrogin peat (formed from large swampy plains), has a high acid content with a pH < 5.5, and has a peat soil density of (1.25 - 1.80) g / cc. Replanting activities in mineral soil areas include ripping, plowing, chipping, holing to planting with a large field capacity (0.04 - 0.72) ha / hour and a total time of completion of work (total field time) of 139.5 hours / ha. Replanting activities in peatland areas include falling, chipping, deboling, holing and planting with a large field capacity (0.06 - 1.25) ha / hour and a total field time of 73.7 hours / ha. Keywords: field capacity, mineral soils, peatlands, replanting, total field time
PENGARUH KADAR AIR TERHADAP NILAI WARNA CIE PADA GULA SEMUT
Authors: Kurniawan Hary
Published: October 2020

Colour is one of the essential attributes as product quality criteria that determine the acceptance of a product by consumers. Granulated palm sugar is a crystalline form, which is hygroscopic. The purpose of this study was to study the colour changes through the CIELab (L, a and b) colour system to the changes in the moisture content of granulated palm sugar during storage. Changes in the values of L, a and b were observed during storage at 30oC and 76% RH. The results showed that the moisture content of granulated palm sugar increased from 3.84% wb to 8.40% wb for 10 hours of storage. The L value tends to decrease with an increasing water content which causes it to turn dark brown. While the cost of a tends to increase with increasing moisture content, the colour of the granulated palm sugar to reddish. The same thing happened to the value of b, which increases with the moisture content of granulated palm sugar and causes it tends to yellowish. Thus the change in ant sugar moisture content gives a significant difference to the L, a and b values during storage.
RANCANG BANGUN SISTEM KENDALI AIR IRIGASI MENGGUNAKAN APLIKASI SMARTPHONE BERBASIS MIKROKONTROLER
Authors: Nasarudin Muhammad , Mahardhian Dwi Putra Guyup , Haji Abdullah Sirajuddin , Ajeng Setiawati Diah
Published: October 2020

Petani selama ini melakukan penyiraman tanamannya dengan cara manual, sehingga mengurangi waktu pekerjaan yang lain. Penelitian ini bertujuan merancang sistem kendali air irigasi menggunakan aplikasi smartphone berbasis mikrokontroler serta mengetahui cara kerja dari sistem kendali air irigasi menggunakan aplikasi smartphone berbasis mikrokontroler. Alat dan bahan penelitian ini adalah mikrokontroler ESP8266-12E, smartphone, Soil moisture sensor yl-69, pompa dan tanah. Metode penelitian ini adalah metode experimental dilakukan percobaan dilapangan dengan melalui beberapa tahap penelitian yaitu persiapan, perancangan, kalibrasi alat, pemasangan instalasi irigasi, uji kerja alat, dan pengamatan. Parameter pada penelitian ini adalah kadar air tanah, nilai adc sensor, kalibrasi sensor, waktu beroperasi, debit air, dan tegangan input dan output. Dari hasil yang di peroleh adalah alat bekerja sesuai yang diperintahkan melalui smartphone. Nilai kadar air tanah semakin lama semakin berkurang dikarenakan suatu proses evaporasi, sehingga hasil nilainya dapat diketahui melalui lcd dan smartphone. Rata- rata saat pengiriman data pada hari pertama dan kedua adalah 4.77 detik dan 4.97 detik. Rata-rata debit yang keluar pada hari pertama dan kedua adalah 6,57 ml/detik dan 6,30 ml/detik. Alat berkerja berdasarkan perubaan kadar air tanah yang ditentukakn nilai setting pointnya, apabila sudah  mencapai <=70% maka secara otomatis alatnya mengirimkan kondisi kadar air tanahnya ke smarphone dan pada smartphone dilakukan tindakkan balik mengirimkan pesan untuk mengaktifkan pompa, kemudian setelah mencapai >=80% maka secara otomatis alatnya mengirimkan kondisi kadar air tanahnya ke smarphone dan pada smartphone dilakukan tindakkan balik mengirimkan pesan untuk menonaktifkan pompa