bluuebunny/crossref_metadata_2025 huggingface dataset:
Awareness of and Attitudes Toward User Involvement in Research on Aging and Health: Protocol for a Quantitative Large-Scale Panel Study (Preprint)
Authors: Kylén Maya , Schmidt Steven M , Jonsson Oskar , Slaug Björn , Iwarsson Susanne
Published: January 2020

BACKGROUND

User involvement is a requirement of most research funders. There is a growing body of literature exploring the benefits and challenges of user involvement in research, but such studies are scarce in the field of aging and health. Moreover, the majority of such research is qualitative, which limits the generalizability of results. The UserAge panel study will be instrumental in expanding knowledge that will benefit the quality and impact of user involvement in future research.

OBJECTIVE

The aim of this study is to determine the awareness and understanding of and attitudes toward user involvement in research among different categories of knowledge users and researchers over time.

METHODS

A panel study will be implemented with 3 different categories of knowledge users (people aged 60 years and older, informal carers, and professionals in health care and architecture) and researchers in aging and health. A professional survey company will collect data from all samples in parallel. Potential participants will be asked to complete the survey via telephone or online, or participants can request a paper survey to be sent to them in the post. A draft set of questions on attitudes and behavioral patterns related to research utilization and user involvement in research was compiled based on existing literature and input from the research team. Using a participatory approach, we engaged a user forum, where 8 older people and 3 researchers jointly refined the survey for time/length to complete, terminology, readability, and context. Data collected via the internet or telephone will be automatically processed, and data collected on paper forms will be entered in machine-readable forms. The survey company will store all data and deliver the quality-controlled database to the university for further storage. Analyses of frequencies and measures of central tendency will be used for descriptive purposes. To compare groups, state-of-the art statistical analyses will be used.

RESULTS

Data collection for the first study wave started in September 2019 and will be completed in spring 2020. Data will be ready for analysis following cleaning and quality control, which started during summer 2020 and will be completed autumn 2020. We anticipate the data collection for the second study wave to start in September 2021.

CONCLUSIONS

This is the first quantitative large-scale panel study focusing on trends in attitudes toward, awareness of, and knowledge about user involvement in research on aging and health in Sweden. The results will generate new and important knowledge to advance the understanding of user needs and preferences as well as the relevance of user involvement in research on aging and health.

INTERNATIONAL REGISTERED REPORT

DERR1-10.2196/17759
The Mobile App Development and Assessment Guide (MAG): Delphi-Based Validity Study (Preprint)
Authors: Llorens-Vernet Pere , Miró Jordi
Published: January 2020

BACKGROUND

In recent years, there has been an exponential growth of mobile health (mHealth)–related apps. This has occurred in a somewhat unsupervised manner. Therefore, having a set of criteria that could be used by all stakeholders to guide the development process and the assessment of the quality of the apps is of most importance.

OBJECTIVE

The aim of this paper is to study the validity of the Mobile App Development and Assessment Guide (MAG), a guide recently created to help stakeholders develop and assess mobile health apps.

METHODS

To conduct a validation process of the MAG, we used the Delphi method to reach a consensus among participating stakeholders. We identified 158 potential participants: 45 patients as potential end users, 41 health care professionals, and 72 developers. We sent participants an online survey and asked them to rate how important they considered each item in the guide to be on a scale from 0 to 10. Two rounds were enough to reach consensus.

RESULTS

In the first round, almost one-third (n=42) of those invited participated, and half of those (n=24) also participated in the second round. Most items in the guide were found to be important to a quality mHealth-related app; a total of 48 criteria were established as important. “Privacy,” “security,” and “usability” were the categories that included most of the important criteria.

CONCLUSIONS

The data supports the validity of the MAG. In addition, the findings identified the criteria that stakeholders consider to be most important. The MAG will help advance the field by providing developers, health care professionals, and end users with a valid guide so that they can develop and identify mHealth-related apps that are of quality.
A Smartphone App to Manage Cirrhotic Ascites Among Outpatients: Feasibility Study (Preprint)
Authors: Bloom Patricia , Wang Thomas , Marx Madeline , Tagerman Michelle , Green Bradley , Arvind Ashwini , Ha Jasmine , Bloom Judith , Richter James M
Published: January 2020

BACKGROUND

Ascites is a common, painful, and serious complication of cirrhosis. Body weight is a reliable proxy for ascites volume; therefore, daily weight monitoring is recommended to optimize ascites management.

OBJECTIVE

This study aims to evaluate the feasibility of a smartphone app in facilitating outpatient ascites management.

METHODS

In this feasibility study, patients with cirrhotic ascites requiring active management were identified in both inpatient and outpatient settings. Patients were provided with a Bluetooth-connected scale, which transmitted weight data to a smartphone app and then via the internet to an electronic medical record (EMR). Weights were monitored every weekday. In the event of a weight change of ≥5 lbs in 1 week, patients were called and administered a short symptom questionnaire, and providers received an email alert. The primary outcomes of this study were the percentage of enrolled days during which weight data were successfully transmitted to an EMR and the percentage of weight alerts that prompted responses by the provider.

RESULTS

In this study, 25 patients were enrolled: 12 (48%) were male, and the mean age was 58 (SD 13; range 35-81) years. A total of 18 (72%) inpatients were enrolled. Weight data were successfully transmitted to an EMR during 71.2% (697/979) of the study enrollment days, with technology issues reported on 16.5% (162/979) of the days. Of a total of 79 weight change alerts fired, 41 (52%) were triggered by weight loss and 38 (48%) were by weight gain. Providers responded in some fashion to 66 (84%) of the weight alerts and intervened in response to 45 (57%) of the alerts, for example, by contacting the patient, scheduling clinic or paracentesis appointments, modifying the diuretic dose, or requesting a laboratory workup. Providers responded equally to weight increase and decrease alerts (P=.87). The staff called patients a mean of 3.7 (SD 3.5) times per patient, and the number of phone calls correlated with technology issues (r=0.60; P=.002). A total of 60% (15/25) of the patients chose to extend their participation beyond 30 days. A total of 17 patient readmissions occurred during the study period, with only 4 (24%) related to ascites.

CONCLUSIONS

We demonstrated the feasibility of a smartphone app to facilitate the management of ascites and reported excellent rates of patient and provider engagement. This innovation could enable early therapeutic intervention, thereby decreasing the burden of morbidity and mortality among patients with cirrhosis.
Information Needs About Cancer Treatment, Fertility, and Pregnancy: Qualitative Descriptive Study of Reddit Threads (Preprint)
Authors: Garg Ria , Rebić Nevena , De Vera Mary A
Published: January 2020

BACKGROUND

A reproductive health implication of the increasing incidence of cancer among women is the impact of cancer treatment on fertility.

OBJECTIVE

As patients are increasingly using the internet, particularly online forums, to seek and share experiences, our objective was to understand information needs about cancer treatment, fertility, and pregnancy of women with cancer as well as their caregivers.

METHODS

We searched threads (original posts and responses) on four subreddit sites of Reddit (“r/Cancer,” “r/TryingForABaby,” “r/BabyBumps,” and “r/Infertility”) over a 5‐year period between February 4th, 2014 and February 4th, 2019. Threads with original posts involving a lived experience or question regarding cancer treatment and female fertility and/or pregnancy or parenting/having children from the perspective of either patient or caregiver were included in our analysis. We analyzed threads using thematic analysis.

RESULTS

From 963 Reddit threads identified, 69 were analyzed, including 56 with original posts by women with cancer and 13 with original posts by caregivers. From threads made by patients, we identified themes on becoming a part of an online community, impacts of cancer treatment and fertility concerns on self and social relationships, making family planning decisions, and experiences with medical team. We also identified a theme on the impact of cancer treatment and fertility concerns on caregivers.

CONCLUSIONS

Reddit provided a rich pool of data for analyzing the information needs of women facing cancer. Our findings demonstrate the far-reaching impacts of cancer treatment and fertility on physical, mental, and psychosocial health for both patients and their caregivers.
The Economic Burden of Medical Treatment of Children with Asthma in China: Real-World Evidence from the Chinese Medical Insurance Database Network (Preprint)
Authors: Wu Ping , Xu Baoping , Shen Adong , He Zonglin , Zhang Casper J.P. , Ming Wai-Kit , Shen Kunling
Published: January 2020

BACKGROUND

The incidence of asthma has been increasing worldwide, leading to an increase in its global burden. But there are few studies on the economic burden of children with asthma in China.

OBJECTIVE

To investigate the economic burden of medical treatment of children with asthma in China.

METHODS

The China Medical Insurance Research Association (CHIRA) database was searched for patients with asthma from 0 to 14 years old who were diagnosed based on the criteria of “J45” and “J46” coded in ICD-10. A cross-sectional study with cost analysis was conducted.

RESULTS

The annual per capita direct medical cost related to all causes of medical visits was RMB$ 2,889 (US$411), and of that, RMB $525 (US$75) was related to asthma. The percentages of medical cost covered by insurance for all causes and asthma in China were 67% and 58%, respectively. The cost of medication accounted for the highest percentage of direct medical costs. The cost of asthma medication accounted for the highest percentage of all medication costs, followed by the cost of antibiotics. The rate of using antibiotics during asthma attack was 50.3%. In each subgroup, the highest rates of using antibiotics were central region of China (100.0%), children aged 3 years and under (63.6%), and fourth-tier and fifth-tier cities (77.1%). Patients were tested by pulmonary function test (12.2%), and allergen test (5.8%) during treatment. Outpatient clinics(98.58% vs 1.42%, P <.01), advanced hospitals (62.08% vs 37.92%, P <.01), and general hospitals (72.27% vs 27.73%, P <.01) were more often visited than the inpatient clinics, mid-level and primary as well as the specialized clinics, respectively.

CONCLUSIONS

The economic burden of childhood asthma in China is relatively high, but the national medical insurance reduces their economic burden to a large extent. Based on our findings, there remains opportunities to strengthen the hierarchical medical system, and the Global Initiative for Asthma (GINA) program and Chinese guidelines still need to be further popularized in order to achieve complete control of asthma, thereby reducing hospitalization and emergency visits, shortening hospitalization time, and ultimately reducing the economic burden of children with asthma.
Online Guide for Electronic Health Evaluation Approaches: Systematic Scoping Review and Concept Mapping Study (Preprint)
Authors: Bonten Tobias N , Rauwerdink Anneloek , Wyatt Jeremy C , Kasteleyn Marise J , Witkamp Leonard , Riper Heleen , van Gemert-Pijnen Lisette JEWC , Cresswell Kathrin , Sheikh Aziz , Schijven Marlies P , Chavannes Niels H ,   EHealth Evaluation Research Group
Published: January 2020

BACKGROUND

Despite the increase in use and high expectations of digital health solutions, scientific evidence about the effectiveness of electronic health (eHealth) and other aspects such as usability and accuracy is lagging behind. eHealth solutions are complex interventions, which require a wide array of evaluation approaches that are capable of answering the many different questions that arise during the consecutive study phases of eHealth development and implementation. However, evaluators seem to struggle in choosing suitable evaluation approaches in relation to a specific study phase.

OBJECTIVE

The objective of this project was to provide a structured overview of the existing eHealth evaluation approaches, with the aim of assisting eHealth evaluators in selecting a suitable approach for evaluating their eHealth solution at a specific evaluation study phase.

METHODS

Three consecutive steps were followed. Step 1 was a systematic scoping review, summarizing existing eHealth evaluation approaches. Step 2 was a concept mapping study asking eHealth researchers about approaches for evaluating eHealth. In step 3, the results of step 1 and 2 were used to develop an “eHealth evaluation cycle” and subsequently compose the online “eHealth methodology guide.”

RESULTS

The scoping review yielded 57 articles describing 50 unique evaluation approaches. The concept mapping study questioned 43 eHealth researchers, resulting in 48 unique approaches. After removing duplicates, 75 unique evaluation approaches remained. Thereafter, an “eHealth evaluation cycle” was developed, consisting of six evaluation study phases: conceptual and planning, design, development and usability, pilot (feasibility), effectiveness (impact), uptake (implementation), and all phases. Finally, the “eHealth methodology guide” was composed by assigning the 75 evaluation approaches to the specific study phases of the “eHealth evaluation cycle.”

CONCLUSIONS

Seventy-five unique evaluation approaches were found in the literature and suggested by eHealth researchers, which served as content for the online “eHealth methodology guide.” By assisting evaluators in selecting a suitable evaluation approach in relation to a specific study phase of the “eHealth evaluation cycle,” the guide aims to enhance the quality, safety, and successful long-term implementation of novel eHealth solutions.
Prospective Study Evaluating a Pain Assessment Tool in a Postoperative Environment: Protocol for Algorithm Testing and Enhancement (Preprint)
Authors: Kasaeyan Naeini Emad , Jiang Mingzhe , Syrjälä Elise , Calderon Michael-David , Mieronkoski Riitta , Zheng Kai , Dutt Nikil , Liljeberg Pasi , Salanterä Sanna , Nelson Ariana M , Rahmani Amir M
Published: January 2020

BACKGROUND

Assessment of pain is critical to its optimal treatment. There is a high demand for accurate objective pain assessment for effectively optimizing pain management interventions. However, pain is a multivalent, dynamic, and ambiguous phenomenon that is difficult to quantify, particularly when the patient’s ability to communicate is limited. The criterion standard of pain intensity assessment is self-reporting. However, this unidimensional model is disparaged for its oversimplification and limited applicability in several vulnerable patient populations. Researchers have attempted to develop objective pain assessment tools through analysis of physiological pain indicators, such as electrocardiography, electromyography, photoplethysmography, and electrodermal activity. However, pain assessment by using only these signals can be unreliable, as various other factors alter these vital signs and the adaptation of vital signs to pain stimulation varies from person to person. Objective pain assessment using behavioral signs such as facial expressions has recently gained attention.

OBJECTIVE

Our objective is to further the development and research of a pain assessment tool for use with patients who are likely experiencing mild to moderate pain. We will collect observational data through wearable technologies, measuring facial electromyography, electrocardiography, photoplethysmography, and electrodermal activity.

METHODS

This protocol focuses on the second phase of a larger study of multimodal signal acquisition through facial muscle electrical activity, cardiac electrical activity, and electrodermal activity as indicators of pain and for building predictive models. We used state-of-the-art standard sensors to measure bioelectrical electromyographic signals and changes in heart rate, respiratory rate, and oxygen saturation. Based on the results, we further developed the pain assessment tool and reconstituted it with modern wearable sensors, devices, and algorithms. In this second phase, we will test the smart pain assessment tool in communicative patients after elective surgery in the recovery room.

RESULTS

Our human research protections application for institutional review board review was approved for this part of the study. We expect to have the pain assessment tool developed and available for further research in early 2021. Preliminary results will be ready for publication during fall 2020.

CONCLUSIONS

This study will help to further the development of and research on an objective pain assessment tool for monitoring patients likely experiencing mild to moderate pain.

INTERNATIONAL REGISTERED REPORT

DERR1-10.2196/17783
An App-Based Cognitive Behavioral Therapy Program for Cancer Patients with Sleep Problems: A Pilot Randomized Controlled Trial (Preprint)
Authors: Chung Kyong-Mee , Suh Yung Jae , Chin Siyung , Yu Eun-Seung , Lee Hyun Jeong , Kim Jong-Heun , Kim Sang Wun , Koh Su-Jin
Published: January 2020

UNSTRUCTURED

Objective: To develop and evaluate an app-based cognitive behavioral therapy program for cancer patients with sleep problems.
Method: Sixty participants who met the inclusion criteria were randomly assigned to the app-based cognitive behavioral therapy program (HARUToday Sleep) (N = 15), an app-based attentional control program (HARUCard Sleep) (N = 15), or a waitlist control group (N = 15). HARUToday Sleep consists of 48 sessions separated into five zones (psycho-education, behavioral activation, relaxation training, cognitive restructuring, and problem solving). Each participant was required to complete one 10- to 15-minute session per day on weekdays for 10 weeks. In the HARUCard Sleep, participants received one card per day, which provided information about cancer, hobbies, and activities. Participants were evaluated before and after the completion of the program using self-report questionnaires and a dot-probe computer task that measured attentional bias.
Results: The intensity of sleep problems decreased significantly after the intervention for the HARUToday Sleep group compared to the other two groups, whereas there were no significant changes in the quality of life score and the attentional bias scores of the patients.
Conclusion: The HARUToday Sleep app may be an effective intervention for reducing sleep problems in cancer patients.
mHealth Technology Translation in a Developing World: Process, Challenges, and Lessons Learned from a Limited Resources Community of Chiang Mai Province, Thailand (Preprint)
Authors: Boonchieng Waraporn , Boonchieng Ekkarat , Chaiwan Jintana , Shrestha Bijaya , Shrestha Manash
Published: January 2020

BACKGROUND

Use of geographic information system (GIS) for public health has been increasing in Thailand, particularly for studies of major infectious diseases. However, the lack of evaluating the health impact of GIS-embed mHealth makes it impossible to identify the benefit and cost-effectiveness in a developing country where the budget for health promotion is limited.

OBJECTIVE

In this paper, we described the process, problems encountered, and lessons learned in 4 dimensions including reach, effectiveness, adoption, implementation, and maintenance during translation of mHealth technology in a rural community of Chiang Mai, Thailand.

METHODS

An implementation research has been conducted to evaluate the impact of translating mHealth technology amongst household residents and community stakeholders in the rural area of Chiang Mai province, Thailand.

RESULTS

The challenges and problems affected by the individual level and setting level have been evaluated and reported based on the RE-AIM model. The application reached more than 60% of the project's targeted provinces. The application efficiency test and satisfactory test were higher than the acceptable level according to the SUS score system.
The problems encountered in our field settings were mainly related to the capabilities of the data collectors and technical issues of mobile devices, internet coverage, and the GIS application itself. Progressive changes were made to the system during the implementation phase per the feedback from the data collectors and local community contexts. After resolving various problems and learning valuable lessons, the health information system thus developed was easy to use and understand for both the data collectors and the local policymakers.

CONCLUSIONS

The GIS-linked community health profile generated by our system can be used as a baseline by the local public health authorities to design appropriate interventions and measure changes in the health status of the community members. Our field experiences will serve as a guide in future scaling-up of the project and can provide valuable information for other researchers planning to conduct research using GIS in similar contexts.
A change of perspective: switching quantum reference frames via a perspective-neutral framework
Authors: Vanrietvelde Augustin , Hoehn Philipp A. , Giacomini Flaminia , Castro-Ruiz Esteban
Published: January 2020

Treating reference frames fundamentally as quantum systems is inevitable in quantum gravity and also in quantum foundations once considering laboratories as physical systems. Both fields thereby face the question of how to describe physics relative to quantum reference systems and how the descriptions relative to different such choices are related. Here, we exploit a fruitful interplay of ideas from both fields to begin developing a unifying approach to transformations among quantum reference systems that ultimately aims at encompassing both quantum and gravitational physics. In particular, using a gravity inspired symmetry principle, which enforces physical observables to be relational and leads to an inherent redundancy in the description, we develop a perspective-neutral structure, which contains all frame perspectives at once and via which they are changed. We show that taking the perspective of a specific frame amounts to a fixing of the symmetry related redundancies in both the classical and quantum theory and that changing perspective corresponds to a symmetry transformation. We implement this using the language of constrained systems, which naturally encodes symmetries. Within a simple one-dimensional model, we recover some of the quantum frame transformations of \cite{Giacomini:2017zju}, embedding them in a perspective-neutral framework. Using them, we illustrate how entanglement and classicality of an observed system depend on the quantum frame perspective. Our operational language also inspires a new interpretation of Dirac and reduced quantized theories within our model as perspective-neutral and perspectival quantum theories, respectively, and reveals the explicit link between them. In this light, we suggest a new take on the relation between a `quantum general covariance' and the diffeomorphism symmetry in quantum gravity.
Charge diffusion in homogeneous molecular chains based on the analysis of generalized frequency spectra in the framework of the Holstein model
Authors: Tikhonov Dmitry A , Sobolev Egor V , Lakhno Victor D
Published: January 2020

We analyzed numerically computed velocity autocorrelation functions and generalized frequency spectra of charge distribution in homogeneous DNA sequences at finite temperature. The autocorrelation function and generalized frequency spectrum (frequency-dependent diffusion coefficient) are phenomenologically introduced based on the functional of mean-square displacement of the charge in DNA. The charge transfer in DNA was modeled in the framework of the semi-classical Holstein model. In this model, DNA is represented by a chain of oscillators placed into thermostat at a given temperature that is provided by the additional Langevin term. Correspondence to the real DNA is provided by choice of the force parameters, which are calculated with quantum-chemical methods. We computed the diffusion coefficient for all homogenous DNA chains with respect to the temperature and found a special scaling of independent variables that the temperature dependence of the diffusion coefficient for different homogenous DNA is almost similar. Our calculations suggest that for all the sequences, only one parameter of the system is mainly responsible for the charge kinetics. The character of individual motions contributing to the charge mobility and temperature-dependent regimes of charge distribution is determined.
Geodesic motion near self-gravitating scalar field configurations
Authors: Potashov Ivan M. , Tchemarina Julia V. , Tsirulev Alexander N.
Published: January 2020

We study the geodesics motion of neutral test particles in the static spherically symmetric spacetimes of black holes and naked singularities supported by a selfgravitating real scalar field. The scalar field is supposed to model dark matter surrounding some strongly gravitating object such as the centre of our Galaxy. The behaviour of timelike and null geodesics very close to the centre of such a configuration crucially depends on the type of spacetime. It turns out that a scalar field black hole, analogously to a Schwarzschild black hole, has the innermost stable circular orbit and the (unstable) photon sphere, but their radii are always less than the corresponding ones for the Schwarzschild black hole of the same mass; moreover, these radii can be arbitrarily small. In contrast, a scalar field naked singularity has neither the innermost stable circular orbit nor the photon sphere. Instead, such a configuration has a spherical shell of test particles surrounding its origin and remaining in quasistatic equilibrium all the time. We also show that the characteristic properties of null geodesics near the centres of a scalar field naked singularity and a scalar field black hole of the same mass are qualitatively different.
Uma análise do aconselhamento “Por que você deve votar em Bolsonaro?”, do pastor Silas Malafaia, no canal do Youtube: produção e recepção de discursos nas redes sociais, sob a perspectiva semiolinguística
Authors: Melo Mônica Santos de Souza
Published: January 2020

Este trabalho faz parte de um projeto mais amplo que visa estudar a articulação entre os domínios de prática discursiva religioso e político, efetivada por meio das novas tecnologias digitais de comunicação. Este artigo tem por objetivo analisar a situação de comunicação, tanto do ponto de vista da instância de produção quanto da instância de recepção, de um aconselhamento promovido pelo pastor Silas Malafaia, no seu canal do Youtube, incitando os internautas a votarem no então candidato à presidência da República Jair Bolsonaro. Para isso, partimos de um estudo do esquema enunciativo e da organização argumentativa do discurso focalizado, incluindo uma reflexão sobre a identidade discursiva construída pelo enunciador, para, em seguida, analisar a sua repercussão entre os internautas. Procuramos abordar a produção e a recepção do discurso no escopo da Teoria Semiolinguística do Discurso, de Patrick Charaudeau (2001, 2006, 2008, 2010). O estudo constatou que o pastor concilia, em sua fala, componentes das formações discursivas religiosa e política, recorrendo a categorias linguísticas, ordenadas em função da finalidade de incitação, e materializadas por procedimentos ligados à organização argumentativa do discurso. Verificou, também, que as reações dos internautas, reveladas pelos comentários publicados, revelam vozes dissonantes, que caracterizam a plataforma como um espaço de polêmica.  Tudo isso contribui para a construção do capital social do enunciador e, consequentemente, do candidato que ele tenta promover.
Curadoria e rótulos identitários: a madeira em certa arte contemporânea do Nordeste
Authors: Lima Pedro Ernesto Freitas , Gomes de Oliveira Emerson Dionisio
Published: January 2020

A partir da coincidência da exibição de trabalhos realizados em madeira pelos artistas Eduardo Frota, Eudes Mota e Marcelo Silveira em exposições cujas narrativas curatoriais eram de caráter identitário, questionamos: como curadorias operam narrativas identitárias a partir de determinados materiais – no nosso caso, a madeira –, procedimentos empregados em obras e de dados biográficos do artista? Quais as implicações desse processo? Para isso, confrontaremos análises de obras a discursos curatoriais e proporemos hipóteses sobre o emprego da narrativa identitária enquanto mediador institucional e econômico na inserção desses trabalhos, provenientes de circuitos considerados “locais” ou “periféricos”, em circuitos de dimensão “nacional”.
Consideraciones en los procesos de enseñanza-aprendizaje para un primer curso de programación de computadores: una revisión sistemática de la literatura
Authors: Jiménez-Toledo Javier A. , Collazos Cesar , Revelo-Sánchez Oscar
Published: January 2020

Los procesos de enseñanza-aprendizaje en la formación de futuros constructores de software han tomado especial importancia en los últimos años, al punto de que esta ya no es una preocupación exclusiva del campo ingenieril, sino en ella convergen profesionales de diversas áreas como la psicología, la pedagogía, el diseño gráfico, las licenciaturas, etc. Aunque existen algunos trabajos desarrollados, no se encuentra un estudio sistemático que recopile las principales problemáticas y las prácticas actuales para afrontar un primer curso de programación. Es por eso que en este artículo se presenta una revisión sistemática de la literatura, con el propósito de exponer los estudios adelantados en los primeros cursos de programación de computadores, en carreas profesionales que forman constructores de software. Con este objetivo, se hizo una exploración en cuatro bases de datos de referencias bibliográficas de publicaciones científicas, en las cuales se hallaron 106 estudios divulgados en los últimos siete años. Tras una detallada inspección, se determinó que 46 de estos coinciden con los criterios de la revisión, lo que da como resultado la recopilación de las principales experiencias y prácticas reportadas en el proceso de enseñanza-aprendizaje de la programación de computadores. Además, la revisión sistemática permitió determinar las problemáticas asociadas, un listado de 33 herramientas de software, 36 estrategias de trabajo, 18 consideraciones metodológicas, importantes recomendaciones y las tendencias futuras para afrontar un primer curso de programación de computadores. Este artículo es una fuente importante de partida para trabajos futuros que pretendan seguir aportando experiencias que beneficien tanto a estudiantes como a docentes en este complejo campo de la enseñanza-aprendizaje de la programación de computadores.
IMPROVING STUDENTS’ INTEREST BY USING PICTURE MEDIA AT TK NUR ASSALAM
Authors: Ristyani Nada Anis , Nurhayati Nurhayati Nurhayati
Published: January 2020

The purpose of this study is to improve students' interest in English vocabulary through picture media in TK Nur Assalam. This research is a Classroom Action Research (CAR). The participants of this research were 6 students. The results obtained from efforts to the improving students interest in English vocabulary using the picture media involving active learners in the learning process. The role of picture media in learning activities is very important for children, especially in the next education level. Teaching and learning activities in early childhood will quickly develop if parents and teachers intensive to develop it. There are several attempts to create a sense of pleasure in early childhood by using picture media in the learning process. From the result of research indicate that when pre-action take result (15%). In cycle I, it increased to (55%) sufficient criteria. In cycle II, it increased again to (85%) good criteria. So, the increase that occurred from the pre-action to the cycle I that is (40%). The increase from cycle I to cycle II that is (30%). And increase from pre-action to cycle II that is (70%). From the research results obtained, then to the improving students interest in English vocabulary can be improved by using picture media in the learning process.Keywords : Students’ Interest, Vocabulary and Picture Media
ANALYZING A SPEECH AND GRAMMAR USE FATHIA IZZATI AND NESSIE JEDGE IN THE VIDEO OF CARA BERBAHASA INGGRIS LANCAR
Authors: Nahroji Muhamad Nana , Haryudin Acep , Andriani Leni
Published: January 2020

AbstractIn this research used qualitative research method, qualitative research is “a situated activity that locates the observer in the world. It consist of set of interpretive, material practices that make the world visible. These practice transform the world and in this research would be find out how speech and grammar used by Fathia Izzati and Nessie Jedge in the video of Cara Berbahasa Inggris dengan Lancar. In this research, finding the conclusion from video cara berbahasa inggris by Nessie Jedge and Fathia, there are many word used in their conversation its like anaphoric, textual theme, reference, topical theme and comparative reference. And the second analyze finding some mistakes in their conversation still not using grammatical appropriate.Keywords:        Discourse Analysis, Video, Grammar
AN ANALYSIS OF STUDENT SPEAKING SKILL USING ROLE PLAY METHOD
Authors: Lestari Fifa
Published: January 2020

One of the skills that must be mastered in learning English is speaking. However, many people do not have the confidence to speak English because of several problems, both in grammar, vocabulary, pronunciation or fluency. One of the many methods that can improve speaking skills is role-playing. The purpose of the study is to find out whether role-playing techniques can improve students' speaking skill or not.  It turns out that from several opinions of students that the speaking skills of students can practice pronunciation, and can increase vocabulary. Based on the data, it can be concluded that role-playing techniques can improve students' speaking skills. Keywords:  Speaking Skills, Role Play
THE USE OF COMMUNICATIVE APPROACH IN TEACHING READING DESCRIPTIVE TEXT
Authors: Maesri Nani
Published: January 2020

Reading is central to learning process, by reading people can gain important information in this millennial era. Study reading aims to develop the reading skills that you need to find information quickly, to identify what is important in a text, to compare different sources of information and to read critically. The aim of this experimental research is to investigate the effect of communicative approach on reading competencies of 10th grade students of SMK SEHATI in the academic year of 2018/2019. It is about 60 pupilss were assigned as sample through random sampling. Data of student’s reading competencies were collected by using multiple choice of descriptive text test. The result shows there is significant effect at student’s reading comprehension. Keywords:  Communicative Approach, Performance Assessment, Reading Competency
CONNOTATIVE MEANING IN THE PROVERBS OF THE BESEMAH LANGUAGE (A SEMATIC STUDY)
Authors: Efransyah Efransyah
Published: January 2020

The title of this research is An Analysis of Connotative Meaning in the Proverbs of the Besemah Language (A Semantic Study).  Besemah language is identical of a phonem /e/ from indonesian phonem /a/. The language is used in some areas of south Sumatra especially in Lahat district, South Oku district, Bengkulu Province, and Pagar Alam City. This research was aimed to describe the connotative meaning in the proverbs of the Besemah Language. The object of this research was taken from secondary data which is the dictionary of Besemah Language written by Mahdi (2017). The writer used descriptive qualitative method in this research and some semantic theories both grand and supported theories to analyze the data. The results of this research showed that that the connotative meaning in the proverbs of Besemah Language are having great differences to denotative ones for it depends on individual experience. It means that we will understand the meaning of the proverbs from someone’s experience both through the direct story from the older people (anchestors) and witten book/dictionary. Besides, the connotative meaning of the proverbs in Besemah language mostly corelate the meaning of its proverbs to human life such responsibility, social concern, hard work, patience and love.
IMPROVING ENGLISH SPEAKING ABILITY USING THE SNOWBALL THROWING GAMES TECHNIQUE
Authors: Williana Dedy , Anugrah Wibbie Putra , Kareviati Evie
Published: January 2020

Abstract In this study, the researcher used method Classroom Action Research (CAR) to improve the quality of the learning and teaching processes as well as to detect and solving the problems that found in the teaching and learning process. The subjects of this research were the 34 students in SMK Budi Bhakti Utama Padalarang. The researcher used collaborative action research with some English teachers in the school. In this study, the researcher using the instruments interview and questionnaire test to collecting the data. The test that given to students is pre test and also post test in the and of the class or after the students has a treatment. In this result of the study showed the mean score of pretest is 62.02 to 64.00 and post test’s score reached up to 79.00. It is important to describe that there is a significant improvement of the test. Therefore, the criteria of success had been determined. It is crucial to remember that communicative games have contributed and positive impact on teaching and learning process. The communicative games like snowball throwing game expected to enhance students’ motivation and enthusiasm in learning English. Clearly, It gives positive improvement on students’ confidence and their fluency in speaking skill. In short, communivative games can be describing that the strategy of teaching-learning creates good, enjoyable circumstances and reduces the stress level and boredom in learning process. Keywords:  Snowball Throwing, Speaking ,Car  How to Cite: Last name-1, Initial First and Middle name-1., Last name-2, Initial First and Middle name-2., & Last name-3, Initial First and Middle name-3. (2017). Title Title Title Title. Infinity, X (X), XX-XX.
IMPROVING STUDENTS’ READING COMPREHENSION THROUGH THINK-PAIR-SHARE (TPS) TECHNIQUE
Authors: Rosmiati Emi , Nuryani Mila
Published: January 2020

Abstract The aim of this research is to improve students' reading comprehension at the eleventh grade of SMA Mathla’ul Anwar using the think-pair-share technique. The writers implementing this method is to make students easier to understand in a reading activity in the class through discussion and sharing information with their friends. The method of the research is classroom action research (CAR), the research has been carried out in three cycles to achieve students’ improvement in reading comprehension. The mean score in the first cycle is 59.6. In the second cycle is 67.5 and the third cycle is 77. The mean score of the third cycle shows that the think-pair-share technique has succeeded in improving students' reading comprehension Keywords:  Think-Pair-Share, Reading Comprehension, Classroom Action Research
Web-GIS mapping for watershed and land cover area in Bengkulu
Authors: Ernawati Ernawati , Arie Vatresia , Andara Breygas , Regen Rendra
Published: January 2020

Naturally, watershed has a function to accomodate and store water from rainfall to the lake or to the sea. It is affected by land activities and shaped as a boundary of topographic land and as a separator from the sea. Managing the area is one of essential steps for further environment assessement, i.e. decreasing water quality and vulnerability to landslides or floods. However, the ability of web-GIS technology to help the management of watershed area in Bengkulu is still unknown. Here, we showed how the process of Web GIS development for managing the watershade in Bengkulu could be achived. This study mapped the 2018 land cover area of Rindu Hati Sub-watershed by utilizing Landsat 8 satellite images using the Maximum Likelihood method. The land cover map was then processed and displayed using webGIS media. The results showed that the system accuracy for ground truth land use model result was 77.4% which could be accepted as a good result. Further assessment of pixel validation could be one of the future research. We anticipated that the results could be a starting point for more sophisticated area cover of Sumatra and Indonesia. Furthermore, this could be a major development on knowledge discovery in environment and ecology.
Pre-treatment potential of electro-coagulation process using aluminum and titanium electrodes for instant coffee processing wastewater
Authors: Phan Hoang Quang Huy , Hoan Nguyen Xuan , Nguyen Nhat Huy , Duc Nguyen Duc Dat , Anh Nguyen Thi Ngoc , Que Nguyen Thi , Thuy Nguyen Thi
Published: January 2020

This study aimed at investigating the potential of electrocoagulation (EC) process using Al-Al and Al-Ti electrodes for the pre-treatment of instant coffee processing wastewater. Effects of various operating conditions, including cell voltage, time of treatment, inter-electrode distance, pH of solution, solution conductivity and agitation speed on the removals of chemical oxygen demand (COD) and color were considered. The maximum removal of COD and color was achieved at 87% and 99%, respectively, corresponding to COD and color in the effluents of 359-384 mg/L and 58-101 Pt-Co. Biodegradability of treated wastewater was significantly improved since BOD5/COD increased from initial value of 0.42 to 0.65 after treatment. Nether mixing nor adding of electrolyte was recommended. Moreover, the COD removal kinetics during EC process appeared to follow the first-order kinetic model. The operating costs were also determined as a reference for cost assessment of the treatment.
Stradanje nesrpskog civilnog stanovništva na okupiranom području bivše općine Vukovar (1992.-1998.)
Authors: Ružić Slaven
Published: January 2020

Autor je, na temelju izvornog arhivskog gradiva Republike Srpske Krajine, podataka Uprave za zatočene i nestale Ministarstva hrvatskih branitelja i Državnog odvjetništva Republike Hrvatske, kao i dostupne literature, pokušao ustanoviti broj stradalog (ubijenog) nesrpskog civilnog stanovništva okupirane vukovarske općine u razdoblju od siječnja 1992. do siječnja 1998. godine. Pritom se rukovodio činjenicom da je navedena tematika, neovisno o svojemu značaju, u suvremenoj hrvatskoj historiografiji gotovo posve zanemarena. Tekst, sukladno tome, valja smatrati tek uvodom u buduća, kompleksnija istraživanja problematike vezane uz izravne demografske gubitke domicilnog stanovništva na širem vukovarskom području za trajanja Domovinskog rata.
Zapisnici sa sjednica tabora Ustaške mladeži Vukovar (srpanj 1942. - travanj 1943.)
Authors: Macut Petar
Published: January 2020

Autor donosi zapisnike sa sjednica tabora Ustaške mladeži u Vukovaru od srpnja 1942. do travnja 1943. godine. U zapisnicima se nalaze podatci o djelovanju lokalne organizacije Ustaške mladeži u Vukovaru u razdoblju nešto kraćem od godine dana iz kojih se može dobiti dojam o intenzitetu, kvaliteti, preferencijama i načinu na koji je tabor, kao osnovna teritorijalna ustrojbena jedinica organizacije Ustaške mladeži, administrirao i vodio mušku i žensku mladež grada Vukovara od 7 do 18 godina. Zapisniku prethodi kraće objašnjenje ustroja i djelovanja Ustaške mladeži, te su dodatnim bilješkama uz tekst objašnjeni neki važniji momenti i informacije koje ovi dokumenti sadrže.
Šume i društvo Slavonske vojne krajine
Authors: Radošević Mislav
Published: January 2020

Habsburška Monarhija je nakon mira u Srijemskim Karlovcima 1699. godine proširila svoju vlast na teritorij između rijeka Drave, Save i Dunava, koji je u 18. stoljeću uređen i podijeljen na civilni i vojni dio, poznate pod nazivima „civilna Slavonija“ (Kraljevstvo Slavonije), koja je bila pod feudalno-kraljevskom upravom, i „vojna Slavonija“ (Slavonska vojna krajina/granica), koja se nalazila pod vojnom i direktnom carskom upravom. Slavonska vojna krajina, koja se protezala Posavinom duž lijeve obale rijeke Save te graničila sa Osmanskim Carstvom prema jugu, bila je bogata aluvijalnim, poplavnim šumama, koje su stavljene pod direktnu carsku zaštitu i nadzor. U svrhu boljeg nadzora i upravljanja šumskim resursima, habsburška administracija je donosila razne uredbe i regulacije tijekom 18. i 19. stoljeća, koje su ostale na snazi, uz veće ili manje izmjene, do industrijalizacije i razvojačenja te ukidanja vojnokrajiškog sustava u drugoj polovici 19. stoljeća. Ovo istraživanje se fokusira na utjecaj i učinak tih regulacija i carskih uredbi na odnos između vojnih autoriteta, lokalnog stanovništva i njihovog okoliša u dijelu Slavonske vojne krajine koji se nalazio pod upravom 7. (Brodske) graničarske pukovnije. Osim odnosa, ovo istraživanje daje također analizu mnogih okolišnih i društvenih promjena i njihovih raznih faza razvoja, opisanih kroz povijesne izvore različitih provenijencija nastalih između sredine 18. i sredine 19. stoljeća.
Pododbor Matice hrvatske u Osijeku 1936.-1945.
Authors: Tomas Domagoj
Published: January 2020

U članku se opisuju i razlažu nastanak i djelovanje Pododbora Matice hrvatske u Osijeku od njegova osnutka 1936. do prisilnoga gašenja 1945., uzimajući u obzir da su ranije objavljene pregledne sinteze djelovanja Matice hrvatske u Osijeku izostavile to razdoblje iz svoga fokusa, držeći 1961. godinom prvoga osnutka Matičina pododbora (ogranka) u Osijeku. Analiza ima uporište u metodološkoj paradigmi intelektualne povijesti, s kontekstualizacijom protagonista i aktivnosti osječkoga Pododbora Matice hrvatske u široj intelektualnoj mreži grada Osijeka, organizacijske strukture Matice hrvatske i srodnih društava unutar društveno-političke zbilje u Kraljevini Jugoslaviji i Nezavisnoj Državi Hrvatskoj te intelektualnih gibanja unutar europskoga prostora toga vremena. Zbog nedostatne količine izvorne građe za kasnije referentno razdoblje, ponajviše prostora zauzima raščlamba prvih dviju godina djelovanja Pododbora Matice hrvatske u Osijeku, dok se nedostatak izvora za razdoblje Nezavisne Države Hrvatske pokušava supstituirati analizom časopisa Hrvatski sjever iz 1944.
A Study of Green Purchase Intention Comparing with Collectivistic (Chinese) and Individualistic (American) Consumers in Shanghai, China
Authors: Chen Lingyun
Published: January 2020

This study examines the influence of four factors on the green purchase intention of American and Chinese consumers as well as the relationship between these factors. To this end, a conceptual model has been proposed and subjected to empirical verification with the use of a survey. The survey results obtained in one major Chinese city provide reasonable support for the validity of the proposed model. Specifically, the findings from the structural-equation modeling confirm the influence of environmental knowledge, attitudes, environmental concern, and social influence, on the green purchase intention. Although the present findings provide a better understanding of the process and significant antecedents of green purchase intention, the researcher also highlight two areas for more thorough investigation. They are collectivism and individualism. This study also discusses how the present findings may help the Chinese government and green marketers to fine-tune their environmental programs.