bluuebunny/crossref_metadata_2025 huggingface dataset:
Open-channel landslide hazard assessment based on AHP and fuzzy comprehensive evaluation
Authors: Wang Xi , Wang Shuangyin , Qi Jiashuo
Published: August 2020

Cross-regional water diversion projects usually face risks of hazards, in particular high risks of sudden landslides on the slopes of water supply open channels. Determining the hazard level rapidly after a hazard occurs plays a critical role in improving the efficiency of emergency response and recovering the water supply capacity of the projects. Through in-depth analysis of the factors that affect the severity of open-channel landslides, an indicator system for hazard assessment of open-channel landslides was established and the criteria for evaluation of different hazard levels were identified. Based on the hierarchy of the indicator system, a two-level fuzzy comprehensive evaluation model was established to assess the impact of indicators in the model on the hazard level of open-channel landslides, and the weight of each indicator was determined by the analysis hierarchy process. The linear function was used to calculate the membership degree of each indicator to determine the hazard level. A hazard scenario was created with the water diversion project from the Irtysh River to Urumqi as an example, and the two-level fuzzy comprehensive evaluation model was applied to conduct hazard assessment. The proposed method was confirmed to be reasonable and practical.
Dacryocystectomy with Lacrimal Silicone Intubation in Challenging Patients Affected by Recurrent Dacryocystitis and Epiphora: Expanding Minimally Invasive Approach Indications
Authors: Nuzzi Raffaele , Tridico Federico , Nuzzi Alessia
Published: August 2020

Objective:

In this study, we evaluated the feasibility and safety of dacryocystectomy associated with lacrimal intubation, for the treatment of recurrent dacryocystitis and epiphora secondary to lacrimal obstruction with compromised lacrimal sac, was evaluated.

Subjects and Methods:

32 patients underwent dacryocystectomy with Crawford tubes canalicular insertion, performed by a single surgeon. Post-operative visits were scheduled at 1stand 10th day, 1, 3, and 6 months. At each follow-up visit, the prevalence of epiphora and dacryocystitis was evaluated and compared with baseline data. Also, we evaluated the prevalence of local and systemic post-operative adverse events during the follow-up period.

Results:

11 patients (34.38%) reported persistent epiphora, which lasted for 30 days after surgery. Among them, 9 subjects (28.13%) complained occasional epiphora even at the six months follow-up. In the event of dacryocystitis or subacute phlogosis before surgery, patients reported a definitive symptom resolution. Other reported adverse events were epithelial corneal erosion due to Crawford tube protrusion (4 cases, 12.5%), a Crawford tube extrusion case (3.13%), 3 cases of surgical wound dehiscence (9.36%), and a case of mild local bleeding persisting for 15 days

Conclusion:

A significative epiphora reduction was observed after surgery with an acceptable safety profile, expanding dacryocystectomy indications. This procedure provides a satisfactory resolution of recurrent dacryocystitis. However, this approach should be performed only in well-selected cases: elderly/frail patients with altered lacrimal sacs, epiphora associated with recurrent infections, and failure after dacryocystectomy.
Twelve Weeks of High-Intense Interval Training Enhance the Neuromuscular and Cardiorespiratory Performance of Elderly
Authors: Braga Joy Cavalcante , de Freitas Rodrigo Eufrásio , dos Santos Kennedy Maia , Pontes da Silva Rodonilton , Mota da Silva Josimar , Junior Adalberto Louzada , de Oliveira Glauber Lameira , Oliveir Talita Adão Perini , Pernambuco Carlos Soares , Furtado da Silva Vernon , de Almeida Marinho Daniel , Valentim-Silva João Rafael
Published: August 2020

Background:

Exercise is an effective non-pharmacological intervention for the enhancement of neuromuscular and cardiorespiratory health. In particular, High-Intense Intermittent Training (HIIT) has been implicated in health management; however, in specific populations such as the elderly, is needed more investigations.

Objective:

The aim is to determine the impact of HIIT in the neuromuscular and cardiorespiratory fitness of the elderly.

Methods:

Thirty-two elderly volunteers, 71.0 ± 2.1 years, were randomly divided into two groups, control (CG) (n = 16), that did not participate in any interventions, and experimental (EG) (n = 16) that participated in a 12-week exercise program based on HIIT 3 times a week, and 40 minutes by a meeting. Both groups were subjected before and after the intervention period to neuromuscular and cardiorespiratory testing, and monthly were clinically evaluated by a Physician.

Results:

No orthopaedic events were reported to both groups, and the CG showed no enhancement to all variables. The EG, muscular endurance of the upper limbs was enhanced (p <0.0001), as was muscular endurance of the lower limbs (p <0.0001), localized muscular endurance of abdominal muscles (p <0.0001), lower limb muscle power (p <0.0001) and aerobic power (p <0.0001). There were no adverse events during or after the intervention period.

Conclusion:

HIIT is an effective strategy to promote enhancement of neuromuscular and cardiorespiratory fitness in the elderly and showed safe because no orthopaedic and cardiovascular events were reported.
Dynamic Interactive Social Cognition Training in Virtual Reality (DiSCoVR) for People With a Psychotic Disorder: Single-Group Feasibility and Acceptability Study
Authors: Nijman Saskia Anne , Veling Wim , Greaves-Lord Kirstin , Vos Maarten , Zandee Catharina Elizabeth Regina , Aan het Rot Marije , Geraets Chris Neeltje Wil , Pijnenborg Gerdina Hendrika Maria
Published: August 2020

Background

People with a psychotic disorder commonly experience problems in social cognition and functioning. Social cognition training (SCT) improves social cognition, but may inadequately simulate real-life social interactions. Virtual reality (VR) provides a realistic, interactive, customizable, and controllable training environment, which could facilitate the application of skills in daily life.

Objective

We developed a 16-session immersive VR SCT (Dynamic Interactive Social Cognition Training in Virtual Reality [DiSCoVR]) and conducted a single-group feasibility pilot study.

Methods

A total of 22 people with a psychotic disorder and reported problems in social cognition participated. Feasibility and acceptability were assessed using a survey for participants and therapists, and by examining relevant parameters (eg, dropouts). We analyzed preliminary treatment effects on social cognition, neurocognition, and psychiatric symptoms.

Results

A total of 17 participants completed the study. Participants enjoyed DiSCoVR (mean 7.25, SD 2.05; range 3-10), thought it was useful for daily social activities (mean 7.00, SD 2.05; range 3-10), and enjoyed the combination of VR and a therapist (mean 7.85, SD 2.11; range 3-10). The most frequently mentioned strength of DiSCoVR was the opportunity to practice with personalized social situations (14/20, 70%). A significant improvement of emotion perception was observed (Ekman 60 Faces; t16=–4.79, P<.001, d=–0.67), but no significant change was found in other measures of social cognition, neurocognition, psychiatric symptoms, or self-esteem.

Conclusions

DiSCoVR was feasible and acceptable to participants and therapists, and may improve emotion perception.
Influencing Factors of Continuous Use of Web-Based Diagnosis and Treatment by Patients With Diabetes: Model Development and Data Analysis
Authors: Ju Chunhua , Zhang Shuangzhu
Published: August 2020

Background

The internet has become a major source of health care information for patients and has enabled them to obtain continuous diagnosis and treatment services. However, the quality of web-based health care information is mixed, which raises concerns about the credibility of physician advice obtained on the internet and markedly affects patients’ choices and decision-making behavior with regard to web-based diagnosis and treatment. Therefore, it is important to identify the influencing factors of continuous use of web-based diagnosis and treatment from the perspective of trust.

Objective

The objective of our study was to investigate the influencing factors of patients’ continuous use of web-based diagnosis and treatment based on the elaboration likelihood model and on trust theory in the face of a decline in physiological conditions and the lack of convenient long-term professional guidance.

Methods

Data on patients with diabetes in China who used an online health community twice or more from January 2018 to June 2019 were collected by developing a web crawler. A total of 2437 valid data records were obtained and then analyzed using correlation factor analysis and regression analysis to validate our research model and hypotheses.

Results

The timely response rate (under the central route), the reference group (under the peripheral route), and the number of thank-you letters and patients’ ratings that measure physicians’ electronic word of mouth are all positively related with the continuous use of web-based diagnosis and treatment by patients with diabetes. Moreover, the physician’s professional title and hospital’s ranking level had weak effects on the continuous use of web-based diagnosis and treatment by patients with diabetes, and the effect size of the physician’s professional title was greater than that of the hospital’s ranking level.

Conclusions

From the patient's perspective, among all indicators that measure physicians’ service quality, the effect size of a timely response rate is much greater than those of effect satisfaction and attitude satisfaction; thus, the former plays an essential role in influencing the patients’ behavior of continuous use of web-based diagnosis and treatment services. In addition, the effect size of electronic word of mouth was greater than that of the physician’s offline reputation. Physicians who provide web-based services should seek clues to patients’ needs and preferences for receiving health information during web-based physician-patient interactions and make full use of their professionalism and service reliability to communicate effectively with patients. Furthermore, the platform should improve its electronic word of mouth mechanism to realize its full potential in trust transmission and motivation, ultimately promoting the patient’s information-sharing behavior and continuous use of web-based diagnosis and treatment.
Excessive Media Consumption About COVID-19 is Associated With Increased State Anxiety: Outcomes of a Large Online Survey in Russia
Authors: Nekliudov Nikita A , Blyuss Oleg , Cheung Ka Yan , Petrou Loukia , Genuneit Jon , Sushentsev Nikita , Levadnaya Anna , Comberiati Pasquale , Warner John O , Tudor-Williams Gareth , Teufel Martin , Greenhawt Matthew , DunnGalvin Audrey , Munblit Daniel
Published: August 2020

Background

The COVID-19 pandemic has potentially had a negative impact on the mental health and well-being of individuals and families. Anxiety levels and risk factors within particular populations are poorly described.

Objective

This study aims to evaluate confidence, understanding, trust, concerns, and levels of anxiety during the COVID-19 pandemic in the general population and assess risk factors for increased anxiety.

Methods

We launched a cross-sectional online survey of a large Russian population between April 6 and 15, 2020, using multiple social media platforms. A set of questions targeted confidence, understanding, trust, and concerns in respondents. The State-Trait Anxiety Inventory was used to measure anxiety. Multiple linear regressions were used to model predictors of COVID-19–related anxiety.

Results

The survey was completed by 23,756 out of 53,966 (44.0% response rate) unique visitors; of which, 21,364 were residing in 62 areas of Russia. State Anxiety Scale (S-Anxiety) scores were higher than Trait Anxiety Scale scores across all regions of Russia (median S-Anxiety score 52, IQR 44-60), exceeding published norms. Time spent following news on COVID-19 was strongly associated with an increased S-Anxiety adjusted for baseline anxiety level. One to two hours spent reading COVID-19 news was associated with a 5.46 (95% CI 5.03-5.90) point difference, 2-3 hours with a 7.06 (95% CI 6.37-7.74) point difference, and more than three hours with an 8.65 (95% CI 7.82-9.47) point difference, all compared to less than 30 minutes per day. Job loss during the pandemic was another important factor associated with higher S-Anxiety scores (3.95, 95% CI 3.31-4.58). Despite survey respondents reporting high confidence in information regarding COVID-19 as well as an understanding of health care guidance, they reported low overall trust in state and local authorities, and perception of country readiness.

Conclusions

Among Russian respondents from multiple social media platforms, there was evidence of higher levels of state anxiety associated with recent job loss and increased news consumption, as well as lower than expected trust in government agencies. These findings can help inform the development of key public health messages to help reduce anxiety and raise perceived trust in governmental response to this current national emergency. Using a similar methodology, comparative surveys are ongoing in other national populations.
Decompensation in Critical Care: Early Prediction of Acute Heart Failure Onset (Preprint)
Authors: Essay Patrick , Balkan Baran , Subbian Vignesh
Published: August 2020

BACKGROUND

Heart failure is a leading cause of mortality and morbidity worldwide. Acute heart failure, broadly defined as rapid onset of new or worsening signs and symptoms of heart failure, often requires hospitalization and admission to the intensive care unit (ICU). This acute condition is highly heterogeneous and less well-understood as compared to chronic heart failure. The ICU, through detailed and continuously monitored patient data, provides an opportunity to retrospectively analyze decompensation and heart failure to evaluate physiological states and patient outcomes.

OBJECTIVE

The goal of this study is to examine the prevalence of cardiovascular risk factors among those admitted to ICUs and to evaluate combinations of clinical features that are predictive of decompensation events, such as the onset of acute heart failure, using machine learning techniques. To accomplish this objective, we leveraged tele-ICU data from over 200 hospitals across the United States.

METHODS

We evaluated the feasibility of predicting decompensation soon after ICU admission for 26,534 patients admitted without a history of heart failure with specific heart failure risk factors (ie, coronary artery disease, hypertension, and myocardial infarction) and 96,350 patients admitted without risk factors using remotely monitored laboratory, vital signs, and discrete physiological measurements. Multivariate logistic regression and random forest models were applied to predict decompensation and highlight important features from combinations of model inputs from dissimilar data.

RESULTS

The most prevalent risk factor in our data set was hypertension, although most patients diagnosed with heart failure were admitted to the ICU without a risk factor. The highest heart failure prediction accuracy was 0.951, and the highest area under the receiver operating characteristic curve was 0.9503 with random forest and combined vital signs, laboratory values, and discrete physiological measurements. Random forest feature importance also highlighted combinations of several discrete physiological features and laboratory measures as most indicative of decompensation. Timeline analysis of aggregate vital signs revealed a point of diminishing returns where additional vital signs data did not continue to improve results.

CONCLUSIONS

Heart failure risk factors are common in tele-ICU data, although most patients that are diagnosed with heart failure later in an ICU stay presented without risk factors making a prediction of decompensation critical. Decompensation was predicted with reasonable accuracy using tele-ICU data, and optimal data extraction for time series vital signs data was identified near a 200-minute window size. Overall, results suggest combinations of laboratory measurements and vital signs are viable for early and continuous prediction of patient decompensation.
Habits-GDM mobile application in managing gestational diabetes in Singapore: A mixed-methods study (Preprint)
Authors: Surendran Shilpa , Lim Chang Siang , Koh Gerald Choon Huat , Yew Tong Wei , Tai E Shyong , Foong Pin Sym
Published: August 2020

BACKGROUND

The prevalence of gestational diabetes mellitus (GDM) is increasing in Singapore and the cost of providing traditional care for GDM is high. Mobile health (mHealth) applications may act as useful tools in the management of GDM.

OBJECTIVE

The objective of this mixed-methods study was to measure the usage behaviour and explore users’ perceived usefulness of the Habits-GDM application when managing GDM in a randomised controlled trial.

METHODS

We conducted a quantitative analysis of the application usage behaviour in 170 Habits-GDM application users and 14 semi-structured interviews with users from a randomised controlled trial.

RESULTS

The convenience of automatic data transfer of weight values to the Habits-GDM application helped users (116/170, 68%) log their weight at least once a week. However, when the application had usability challenges, users avoided using that feature, i.e. users logged only an average of less than one meal/week out of the recommended six meals/week. Of the usability challenges, many users (12/14, 85.7%) mentioned food items not worded in the commonly known way and limited ethnic food database as the primary barriers. Only half of the users (84/170, 49.4%) accessed the educational lessons, but many (9/14, 64%) identified the provision of always available, valuable health-related information as an advantage of the educational lessons. ‘Healthy eating’ and ‘Why exercise’ were the most (56/84, 66.67%) and least (38/84, 45.24%) frequently accessed educational lessons, respectively. Users (10/14, 71.4%) reported sending messages to the coach via the chat interface only when they faced logistic issues and 86.45% of all the coach messages were replies typed by the research coordinator in response to the logistics issues (i.e. a request for blood glucose testing strips and appointment confirmation) raised by the users. Healthcare professionals lack of access to the coach’s dashboard discouraged users from asking queries related to GDM via the e-coaching feature.

CONCLUSIONS

The findings suggest that mHealth application acts as a useful tool in managing GDM. Culturally sensitive mHealth applications with a provision for women to interact with healthcare professionals should be developed in cooperation with the users.

CLINICALTRIAL

Not applicable.
Development and External Validation of Diagnostic Model for Intra-Procedural Hypotension during Primary Percutaneous Coronary Intervention: Algorithm Development and Validation (Preprint)
Authors: Li Yong
Published: August 2020

BACKGROUND

Intra-procedural hypotension weaken the benefit of primary percutaneous coronary intervention (PPCI) and worsens the prognosis of acute ST elevation myocardial infarction ( STEMI ) patients.

OBJECTIVE

The objective of our study was to develop and externally validate a diagnostic model of intra-procedural hypotension.

METHODS

Design:Multivariable logistic regression of a cohort of acute STEMI patients. Setting: Emergency department ward of a university hospital. Participants: Diagno The objective of our study was to develop and externally validate a diagnostic model of intra-procedural hypotension. stic model development: A total of 1239 acute STEMI patients who were consecutively treated with PPCI from November 2007 to December 2013. External validation: A total of 1294 acute STEMI patients who were treated with PPCI from January 2014 to June 2018. Outcomes: Intra-procedural hypotension. Intra-procedural hypotension was defined as pre-procedural systolic blood pressure (SBP) was > 90mmHg, intra-procedural SBP less than or equal to 90 mmHg persistent or transient.

RESULTS

Intra-procedural hypotension occurred in121 out of 1,239 participants (9.8%) in the development data set.The strongest predictors of intra-procedural hypotension were no-reflow(odds ratios (OR) 1.911; 95% confidence interval(CI), 1.177～3.102 ; P =.009), the culprit vessel was left anterior descending(OR.488;95% CI, .326～.732 ; P =.001), complete occlusion of culprit vessel(OR4.351;95% CI, 2.076～9.12 ; P<.001), using thrombus aspiration devices during operation(OR 1.793;95% CI, 1.058～3.039 ; P =.03) ,and history of diabetes (OR .589;95% CI, .353~.983 ; P =.042). We developed a diagnostic model of intra-procedural hypotension. The area under the receiver operating characteristic (ROC) curve (AUC)was .685 ± .022, 95% CI= .641 ~ .729 in the development set. We constructed a nomogram using the development database based on predictors of intra-procedural hypotension.
Intra-procedural hypotension occurred in 123 out of 1,294 participants (9.5%)patients in the validation data set.The AUC was .718 ±.022, 95% CI= .674 ~ .761 in the validation set . Discrimination, calibration, and decision curve analysis were satisfactory.
Date of approved by ethic committee: 2 September 2019. Date of data collection start: 10 September 2019. Numbers recruited as of submission of the manuscript:2,533.

CONCLUSIONS

We developed and externally validated a diagnostic model of intra-procedural hypotension during PPCI . We can use the formula or nomogram to predict intra-procedural hypotension.

CLINICALTRIAL

This study was registered with WHO International Clinical Trials Registry Platform (ICTRP) on 6 September 2019 (registration number:ChiCTR1900025706). http://www.chictr.org.cn/edit.aspx?pid=42913&htm=4.
Clinical Decision Support for Traumatic Brain Injury: Identifying a Framework for Practical Model-Based Intracranial Pressure Estimation at Multihour Timescales (Preprint)
Authors: Stroh J N , Bennett Tellen D , Kheyfets Vitaly , Albers David
Published: August 2020

BACKGROUND

The clinical mitigation of intracranial hypertension due to traumatic brain injury requires timely knowledge of intracranial pressure to avoid secondary injury or death. Noninvasive intracranial pressure (nICP) estimation that operates sufficiently fast at multihour timescales and requires only common patient measurements is a desirable tool for clinical decision support and improving traumatic brain injury patient outcomes. However, existing model-based nICP estimation methods may be too slow or require data that are not easily obtained.

OBJECTIVE

This work considers short- and real-time nICP estimation at multihour timescales based on arterial blood pressure (ABP) to better inform the ongoing development of practical models with commonly available data.

METHODS

We assess and analyze the effects of two distinct pathways of model development, either by increasing physiological integration using a simple pressure estimation model, or by increasing physiological fidelity using a more complex model. Comparison of the model approaches is performed using a set of quantitative model validation criteria over hour-scale times applied to model nICP estimates in relation to observed ICP.

RESULTS

The simple fully coupled estimation scheme based on windowed regression outperforms a more complex nICP model with prescribed intracranial inflow when pulsatile ABP inflow conditions are provided. We also show that the simple estimation data requirements can be reduced to 1-minute averaged ABP summary data under generic waveform representation.

CONCLUSIONS

Stronger performance of the simple bidirectional model indicates that feedback between the systemic vascular network and nICP estimation scheme is crucial for modeling over long intervals. However, simple model reduction to ABP-only dependence limits its utility in cases involving other brain injuries such as ischemic stroke and subarachnoid hemorrhage. Additional methodologies and considerations needed to overcome these limitations are illustrated and discussed.

CLINICALTRIAL
Remote Examination and Screening for Domestic Abuse. Comment on “Online Antenatal Care During the COVID-19 Pandemic: Opportunities and Challenges” (Preprint)
Authors: Grimes Hannah Lee , Uppal Ramnik
Published: August 2020

UNSTRUCTURED

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Max-Plus Linear Equation System and Its Application on Railway Network System
Authors: Kurniawan Andro , Suparwanto Ari
Published: August 2020

Max-Plus algebra is the set of R U {-~} with R is the set of all real numbersthat are equipped with maximum operation and addition. Max-Plus algebra is able tomodel several types of Discrete Event System (DES) which are nonlinear in conventional algebra to be linear in Max-Plus algebra, so we can do further analysis of the system. Types of DES will be linear in the form of Max-Plus algebra which only synchronizes without any concurrency such as railway network systems, production systems, traffic lights, etc. This research discusses the application of the linear Max-Plus equation in the train schedules and involves synchronization between trains. The result of this study are obtained DAOP VI Yogyakarta rail network system model in the form of x(k + 1) = A otimes x (k) which is then used to determine the departure period and the time of initial train departure. The departure period is obtained from the eigenvalue (lambda) from the A matrix and the initial departure is obtained from the eigenvector corresponding to lambda. The calculation shows that the train departure period is T = 588 minutes.
Optimizing Peritoneal Dialysis–Associated Peritonitis Prevention in the United States
Authors: Perl Jeffrey , Fuller Douglas S. , Boudville Neil , Kliger Alan S. , Schaubel Douglas E. , Teitelbaum Isaac , Warady Bradley A. , Neu Alicia M. , Patel Priti R. , Piraino Beth , Schreiber Martin , Pisoni Ronald L.
Published: August 2020

Peritoneal dialysis (PD)–associated peritonitis is the leading cause of permanent transition to hemodialysis among patients receiving PD. Peritonitis is associated with higher mortality risk and added treatment costs and limits more widespread PD utilization. Optimizing the prevention of peritonitis in the United States will first require standardization of peritonitis definitions, key data elements, and outcomes in an effort to facilitate nationwide reporting. Standardized reporting can also help describe the variability in peritonitis rates and outcomes across facilities in the United States in an effort to identify potential peritonitis prevention strategies and engage with stakeholders to develop strategies for their implementation. Here, we will highlight considerations and challenges in developing standardized definitions and implementation of national reporting of peritonitis rates by PD facilities. We will describe existing peritonitis prevention evidence gaps, highlight successful infection-reporting initiatives among patients receiving in-center hemodialysis or PD, and provide an overview of nationwide quality improvement initiatives, both in the United States and elsewhere, that have translated into a reduction in peritonitis incidence. We will discuss opportunities for collaboration and expansion of the Nephrologists Transforming Dialysis Safety (NTDS) initiative to develop knowledge translation pathways that will lead to dissemination of best practices in an effort to reduce peritonitis incidence.
Notas introductorias a la obra de Ricardo Falla.
Authors: Rodríguez Enriqueta Lerma , Monterrosa Cubías Luis Gerardo
Published: August 2020

Estas notas de investigación sobre la obra de Ricardo Falla surgieron de las ponencias, las discusiones y el intercambio con el autor durante el Foro del Pensamiento Centroamericano realizado en octubre de 2019 en el CIMSUR-UNAM. En estas páginas elaboramos, como primer punto, un bosquejo biográfico de Falla, y después desarrollamos algunas líneas que sintetizan los temas abordados: la pertinencia de su obra para el estudio de la historia, la reflexividad etnográfica de y en torno a Falla y, finalmente, la liminalidad en búsqueda de lo humano.
RANCANG BANGUN APLIKASI PEMESANAN LAPANGAN FUTSAL BERBASIS ANDROID MENGGUNAKAN METODE WATERFALL (Studi Kasus: Champion Futsal Malang)
Authors: Alfiansyah Septian Heri , Pradana Dharma Surya , Wahyuni Evi Dwi
Published: August 2020

AbstrakAplikasi pemesanan lapangan futsal Champion Malang merupakan sebuah sistem informasi melalui platform android yang digunakan user atau costumer futsal champion untuk melakukan pemesanan lapangan secara online tanpa harus menelepon karyawan lapangan, ataupun mendatangi lokasi setiap cabang champion futsal, dimana aplikasi ini dapat membantu user untuk melihat dan menentukan jadwal sewa yang nantinya akan dipesan mulai dari lapangan, tanggal pesan, jam pesan,  hingga durasi pemakaian lapangan yang disajikan melalui tampilan platform android, guna memudahkan proses penyewaan lapangan sehingga dapat meningkatkan produktifitas layanan jasa penyewaan pada cabang futsal Champion Malang. Dalam penelitian ini penulis merancang dan membangun aplikasi android pemesanan lapangan futsal pada champion futsal Malang  menggunakan metode Waterfall melalui 5 (lima)  tahapan yaitu requirement analysis, design, implementasi, testing dan, maintenance, aplikasi ini dibangun menggunakan Apache Cordova  sehingga memungkinkan pengembang aplikasi mobile  untuk mengakses fungsi perangkat asli (native)  seperti kamera atau accelerometer dengan  menggunakan teknologi web standar seperti HTML5, CSS3, dan JavaScript untuk pengembangan cross- platform.Abstract Application of Champion Malang futsal field rental is an information system that is android based platform used by users or customer futsal champions to order fields via online without having to call field employees or visit the location of each futsal champion branch. This application can help users to see and determine desired schedule; they are the field itself, date of exertion, time of order, to the duration of field usage that is presented through the display of the Android platform, the further function is to facilitate the field leasing process so it can increase the productivity of rental services at Champion Malang futsal. In this study, the researcher designed and built an android application ordering futsal courts at Malang futsal champion using the Waterfall method through 5 (five) stages; they are requirement analysis, design, implementation, testing and maintenance, this application was built using Apache Cordova to enable mobile application developers to access native device functions such as a camera or accelerometer with using standard web technologies such as HTML5, CSS3, and JavaScript for cross-platform development.
Prediksi Permintaan Kargo pada Cargo Service Center Tangerang City Menggunakan Metode Gated Recurrent Unit
Authors: Saputra Rifky Ahmad
Published: August 2020

Pada saat ini persaingan bisnis dalam bidang layanan kargo khususnya di Indonesia semakin ketat. Terdapat beberapa perusahaan layanan kargo di Indonesia, salah satunya yaitu Cargo Service Center Tangerang City. Untuk mengantisipasi persaingan bisnis tersebut, Cargo Service Center Tangerang City harus dapat menentukan strategi manajemen usaha, baik dalam jangka menengah maupun jangka panjang. Salah satunya hal yang dapat dilakukan yaitu prediksi permintaan kargo. Pada Cargo Service Center Tangerang City terdapat data transaksi kargo mulai dari Januari 2016 hingga Septermber 2019, oleh karena itu dilakukanlah penelitian yaitu mengimplementasikan metode Gated Recurrent Unit untuk melakukan prediksi permintaan kargo. metode Gated Recurrent Unit merupakan model pengembangan dari Recurrent Neural Network yang biasa digunakan untuk melakukan prediksi pada data sekuens. Pengujian model prediksi dalam penelitian ini dilakukan dengan mencari nilai Root Mean Square Error terkecil dari beberapa percobaan. Hasil dari penelitian ini menunjukkan bahwa model cukup baik dalam melakukan prediksi permintaan kargo, namun terdapat beberapa hasil prediksi metode Gated Recurrent Unit yang masih belum maksimal mendekati nilai aktual misalnya pada nilai aktual yang berada di titik puncak.
Early Disruptors: Examining the Determinants and Consequences of Blockchain Early Adoption
Authors: Guo Feng , Walton Stephanie , Wheeler Patrick R. , Zhang Yiyang (Ian)
Published: August 2020

This study examines factors that influence a public firm's decision to early-adopt blockchain technology. Blockchain technology has the potential to disrupt how firms collect, process, and maintain information about a wide range of firm activities including transactions and supply chain interactions. We examine several determinants of early blockchain adoption including patented technology, agency costs, complexity, and external monitoring. Our results suggest that blockchain early adoption involves opportunistic managerial behavior. Further, firms with greater technology innovations, proxied by number of patents, are more likely to disclose early adoption, possibly to overcome productivity concerns or attract inter-firm opportunities. We also examine the consequences of early adoption using a market-based approach. Our results suggest that blockchain adoption could be a lengthy and costly process. Our study provides evidence on why firms adopt this disruptive technology and informs regulators and policy makers on how managers can influence the blockchain early adoption decision.
Evaluasi Kurikulum pada Program Studi Pendidikan Teknik Elektro Universitas Negeri Padang dengan Konsep AUN-QA Kriteria-3: Programme Structure and Content
Authors: Dolly Vice Pramutia , Mukhaiyar Riki , Elfizon Elfizon
Published: August 2020

Ilmu pengetahuan dan teknologi berkembang dengan sangat pesat dewasa ini, sehingga dunia kerja semakin ketat dalam memilih lulusan yang berkualitas sesuai dengan bidangnya. Lulusan yang berkualitas merupakan salah satu syarat kebutuhan stakeholder pada Dunia Usaha dan Dunia Industri (DU/DI). Seiring dengan itu Program Studi Pendidikan Teknik Elektro memiliki capaian lulusan yang berkualitas, unggul, serta berkompeten dibidang ilmu teknik elektro. Untuk itu diperlukan sebuah evaluasi terhadap program kurikulum dengan mengacu kepada AUN-QA (Asean University Network Quality Assurance) sebagai sebuah lembaga organisasi universitas seASEAn yang memiliki tujuan memperkuat dan memperluas kerjasama Pendidikan Tinggi di Asia. Penelitian ini menggunakan kualitatif dengan metode komparatif ex-postfacto jenis correlational study. Penelitian dilakukan dengan pengumpulan data seperti observasi, wawancara, dan studi dokumentasi. Penelitian ini menghasilkan sebuah konsep evaluasi kurikulum berdasarkan standar AUN-QA kriteria-3, Programme Structure and Content. Melalui penelitian ini diharapkan menjadi sebuah pola dalam melakukan evaluasi kurikulum untuk mencetak lulusan yang unggul dan berkualitas pada bidangnya.
Perancangan Media Pembelajaran Interaktif Konsep Dasar Kelistrikan Pada Mata Kuliah Listrik dan Elektronika
Authors: Ikhwandi Ilham Eka , Basri Irma Yulia
Published: August 2020

Penelitian ini bertujuan untuk menghasilkan sebuah media pembelajaran interaktif dengan materi konsep dasar kelistrikan pada mata kuliah listrik dan elektronika. Jenis penelitian yang digunakan pada penelitian ini adalah research and development dengan model pengembangan 4-D. Pada model pengembangan 4-D memiliki 4 langkah pengembangan yaitu: Define (pendefinisian), Design (perancangan), Develop (pengembangan), dan Dessiminate (penyebaran). Media diuji kelayakannya berdasarkan penilaian dari dua orang validator dan dinilai oleh mahasiswa jurusan teknik sebanyak 35 orang. Penilaian validator dan mahasiswa sebagai pengguna dilakukan dengan cara pengisian angket penilaian dengan skala likert. Pengambilan data pengguna dilakukan diruang perkuliahan oto 04 dan mahasiswa melakukan penilaian terhadap media pembelajaran dipresentasikan. Hasil penelitian ini yaitu media yang dihasilkan sudah layak digunakan untuk pembelajaran pada mata kuliah listrik dan elektronika dengan tingkat validitas sebesar 95,6% (sangat layak) dari segi materi, 91,3% (sangat layak) dari segi media, dan 88,9% (layak) diperoleh dari penilaian mahasiswa sebagai pengguna atau responden.
Pembangkit Listrik Tenaga Angin sebagai Energi Listrik Alternatif bagi Masyarakat Nelayan Muaro Ganting Kelurahan Parupuk Kecamatan Koto Tangah
Authors: Syamsuarnis Syamsuarnis , Candra Oriza
Published: August 2020

Program pengabdian kepada masyarakat ini bertujuan untuk membangun pembangkit listrik tenaga angin (PLTAngin) sebagai sumber energi alternatif  terbarukan dengan menggunakan turbin angin sumbu horizontal untuk memenuhi kebutuhan energi rumah tangga masyarakat nelayan di Muaro Ganting Kelurahan Parupuk Kecamatan Koto Tangah yang sampai saat ini belum mampu untuk memasang dan menggunakan listrik PLN apalagi saat ini harga listrik PLN per KWh terus meningkat. Disamping itu, melalui kegiatan ini serangkaian perencanaan yang intensif akan dilaksanakan untuk meningkatkan efisiensi dan efektifitas pembangkit listrik dari berbagai aspek seperti pemilihan turbin angin yang sesuai dengan kondisi daerah, pemilihan material, optimalisasi instalasi,dll. Dengan kegiatan ini diharapkan dapat membantu program pemerintah dalam penyediaan listrik bagi warga Muaro Ganting Kelurahan Parupuk Kecamatan Koto Tangah untuk meningkatkan taraf hidup dan kesejahteraan masyarakat.
Sistem Monitoring dan Pengontrolan Suhu pada Inkubator Bayi Berbasis Web
Authors: Amelia Mesa
Published: August 2020

Inkubator bayi sangat berperan penting dalam menjaga suhu tubuh bayi yang baru lahir terutama untuk bayi premature. Pengontrolan dan pemantauan suhu merupakan suata hal yang penting dilakukan oleh para dokter atau perawat dirumah sakit guna untuk mempermudah kinerja tanpa harus berada pada lokasi alat, dan sekaligus untuk menimalisir kesalahan dalam pengambilan data suhu, yang dikarenakan dokter atau perawat harus terus keluar masuk ruangan untuk melakukan mengecekan suhu. Dalam sistem pengontrolan yang dilakukan yaitu menyalakan atau meredupkan lampu pijar secara otomatis sesuai dengan batas normal yang ditentukan yaitu 33 – 350C. Sedangkan untuk monitoring suhu yang  bisa di lakukan secara Realtime. Sistem monitoring dan pengontrolan suhu pada inkubator yang dibahas berupa perancangan Hardware dan Software.  Untuk perangkat hardware nya memerlukan rangkaian Zero Crossing Detector, rangkaian lampu pijar, sensor DHT22, relay 5VDC, rangkaian NodeMCU. Perancangan Software berupa perancangan arduino IDE dan aplikasi Thingspeak
Sistem Peringatan Otomatis pada Jalan Tikungan
Authors: Ikhsan Danni Maulana , Risfendra Risfendra
Published: August 2020

Penelitian ini bertujuan untuk mengembangkan sistem peringatan untuk keamanan pada jalan tikungan tajam. Yang mana pada indikator keamanan sebelumnya hanya menggunakan cermin cembung yang tidak efektif karena hanya menampilkan pantulan objek saat telah mendekati tikungan serta dapat terganggu fungsinya karena faktor cuaca atau alam. Maka dirancanglah sebuah sistem peringatan pada jalan dalam bentuk Hardware dan Software yang mana hardwarenya berupa sebuah miniatur jalan yang memproyeksikan bentuk jalan tikungan tajam serta rangkaian elektronik berupa sensor ultrasonik yang berfungsi sebagai pendeteksi kendaraan yang menuju tikungan tajam. Dengan Arduino Mega 2560 sebagai pusat kendali untuk memberi perintah pada Liquid Crystal Display, traffic light dan buzzer. Perancangan software berupa perancangan program Arduino IDE serta perancangan flowchart. Sensor mendeteksi kendaraan yang akan melewati tikungan dan LCD menampilkan peringatan yang diiringi aktifnya alarm dan perubahan lampu hijau menjadi merah pada traffic light. Dengan begitu pengendara dari arah yang berlawanan akan mendapatkan peringatan untuk berhenti sebelum melewati tikungan.
PHENOMENOLOGY AND PSYCHOANALYTIC THEORY. HUSSERL’S CRITIQUE OF PSYCHOLOGISM AS COMMON GROUND
Authors: BODEA Cristian
Published: August 2020

This paper is addressing Husserl’s critique of psychologism in order to gain a better understanding of an up to date phenomenological research. Staring with Maurice Merleau-Ponty, phenomenology became more and more interested in how psychoanalytic theory can contribute to its findings. The latest phenomenological research reflects this growing interest in psychoanalysis. I will demonstrate in this paper that Husserl’s critique of psychologism enables this interest and that the psychoanalytic theory offers the same critique in response. Thus, the ego problem leading to the deadlock of intersubjectivity, represent one of the common grounds phenomenology and psychoanalysis can meet. In this respect I will use the works of Marc Richir and Jacques Lacan. Emphasizing Marc Richir’s conception of language as phenomenon and the twist he gives to the concept of perceptive phantasia introduced by Husserl in 1918, I will consider the concept of unconscious as a way to solve the intersubjectivity dilemma.
GESETZ UND PERVERSION ALS GRENZVERHÄLTNIS DES GENIESSENS. ZUR FRAGE DER ‟JOUISSANCE” IN PSYCHOANALYSE UND PHÄNOMENOLOGIE
Authors: KÜHN Rolf
Published: August 2020

Law and Perversion as the Limit of Enjoyment. On the Question of Jouissance in Psychoanalysis and Phenomenology. As a psychoanalyst, Jacques Lacan differentiated between the impossibility of symbolic representation covering the real (le réel) and the enjoyment (jouissance), which only partially subject itself to such signifiers and therefore leaves a real rest - the object a. This object a, which is different from the imaginary object, represents a non-assimilable excess that occurs on the one hand as the cause of desire (désir) and on the other hand refers back to the intrinsically concealed presence of object a as the origin of fear. The cure consists in crossing this phantasm to give up the original identification; that is, to see the tension between the desire for recognition and the demand in need (besoin) and thereby to dissolve it. Insofar as the subject is split between the singular truth of desire and a general knowledge about it, interdiction, law and perversion are forming a special relation as frontier of enjoyment.
Formigas como provedoras de serviços ecossistêmicos na Caatinga: Como informar a sociedade sobre pesquisas ecológicas
Authors: Carvalho Wanessa Silva de , Santos Luis Romário da Silva , Oliveira Samarina Fernandes de , Oliveira Fernanda Maria Pereira de , Arnan Xavier , Leal Inara Roberta
Published: August 2020

Perturbações antrópicas são consideradas a causa mais importante do declínio da biodiversidade em todo o mundo. Isso também é verdade para a Caatinga, o ecossistema menos estudado e menos protegido do Brasil. Um dos animais mais pluralísticos nesse bioma são as formigas, responsáveis pelos mais variados serviços ecossistêmicos, os quais vêm sendo cada vez mais estudados pela comunidade científica. No entanto, esses estudos não retornam à sociedade, além da comunidade acadêmica. Em função disso, pesquisadores e estudantes buscaram promover atividades educativas no Parque Nacional do Catimbau para divulgar e conscientizar sobre a biodiversidade e importância ecológica das formigas na Caatinga. As atividades contaram com a apresentação de palestras sobre a importância das formigas com o uso de maquetes do Parque para facilitar a comunicação, distribuição de revistas em quadrinho e cartazes, jogos de tabuleiros, além de amplos debates sobre o assunto. Cerca de 50 estudantes de 10 a 14 anos e aproximadamente 30 adultos participaram das atividades, mostrando bastante interesse e receptividade. Atividades dessa natureza facilitam a transferência de informação à sociedade e ressaltam a importância da conservação da biodiversidade e do papel-chave das Unidades de Conservação para este fim.
PENGUJIAN INKUBATOR BAYI MENGGUNAKAN 2 BUAH LAMPU PIJAR BERKAPASITAS 25 WATT PADA 11 SUHU RUANGAN YANG BERBEDA
Authors: Rangkuti Chalilullah , Permatasari Rosyida
Published: August 2020

Bayi baru lahir memerlukan perhatian khusus pada proses persalinan, sehingga hal ini berpengaruh pada kesehatan bayi itu sendiri. Begitu pula dengan bayi lahir prematur mempunyai tingkat sensitivitas yang tinggi terhadap ruangan sekitarnya. Suhu sekitar bayi dikondisikan sesuai dengan kebutuhan bayi agar bayi mampu beradaptasi dan tidak rentan terhadap penyakit, sehingga hal tersebut diperlukan alat inkubator yang membantu menormalkan suhu disekitar tubuh bayi. Inkubator bayi dibuat dengan bahan material acrylic pada ketebalan 3 mm. Suhu didalam ruang inkubator harus disesuaikan dengan kebutuhan bayi prematur yaitu antara 32℃-37℃. Oleh karena itu dibutuhkan alat mikrokontroler BR6 dan sensor termokopel untuk mengatur dan mengetahui suhu yang ada didalam ruang inkubator. Lampu pijar digunakan sebagai pemanas ruang inkubator. Baterai digunakan untuk alat penyimpanan sumber listrik. Pengujian ini dilakukan dengan cara pengamatan dan analisis data suhu yang dapat dicapai dalam waktu tertentu pada inkubator. Didapatkan hasil bahwa suhu inkubator sebesar 32.℃ menggunakan 2 buah lampu pijar berkapasitas 25 Watt yang dapat dicapai dalam waktu 9 menit pada suhu ruang 29.6℃.
PENGARUH WAKTU TAHAN PADA PROSES ARTIFICIAL AGING TERHADAP MIKROSTRUKTUR PADUAN Al-Sn-Cu.
Authors: Prayitno Dody , Azhary Apriandini Fitri
Published: August 2020

Aluminium dengan paduan timah diaplikasikan sebagai material bushing atau lebih dikenal sebagai bantalan. Penambahan tembaga (Cu) menambah kekerasan paduan Al-Sn. Penambahan proses Artificial aging pada paduan Al-10Sn-10Cu menambahkan kekerasan paduan tersebut. Perubahan mikrostruktur akibat proses artificial aging belum di teliti. Tujuan penelitian adalah mengetahui pengaruh waktu tahan pada proses artificial aging terhadap mikrostruktur Al-10Sn-10Cu. Paduan Al-10sn-10cu di panaskan pada 500 oC selama satu jam kemudian di kuens. Paduan selanjutnya di panaskan kembali pada 190 oC dengan waktu panahanan (waktu penuaan) bervariasi. Hasil penelitian menunjukkan bahwa peningkatan waktu penuaan memperbesar fasa a tetapi memperkecil ukuran fasa Sn
PERANCANGAN ALAT PENUKAR KALOR UNTUK PEMBANGKIT SISTEM ORC
Authors: Azkiya M. Zainu , Maulana Eka
Published: August 2020

Konsumsi energi listrik nasional yang terus meningkat merupakan tantangan bagi warga negara Indonesia untuk dapat menemukan atau memberikan ide gagasan yang dapat dilakukannya penghematan sumber energi listrik. Dengan adanya energi biomassa, banyak variabel-variabel yang dapat dimanfaatkan munculnya sistem penghasil energi listrik salah satunya ialah sistem Organic Rankine Cycles (ORC). Tujuan dari penelitian ini untuk rancangan alat penukar kalor yang terdapat dalam sistem ORC menggunakan refrigerant, memanfaatkan gas buang dari proses pirolisis yang merupakan salah satu proses biomassa dan merencanakan kontruksi alat penukar kalor yang berada dalam siklus ORC dengan jenis Shell and Tube. Alat penukar kalor yang direncanakan berjenis evaporator. Perencanaan ini menghitung perpindahan kalor dan kontruksi alat penukar kalor tipe Shell and Tube.  Sistem ORC ini merupakan sebuah kesamaan pada sistem siklus rankine, yang membedakannya ialah jika siklus rankine menggunakan fluida kerjanya adalah air, ORC menggunakan fluida kerja refrigerant. Refrigerant dipanaskan sehingga menjadi uap yang akan memutar turbin. Ukuran utama yang didapatkan dari hasil perhitungan alat penukar kalor yaitu diameter dalam Shell 488,95 mm (19,25 in), dan panjang 143657,6 mm"> . Fluida yang mengalir pada Shell adalah gas buang, dan fluida yang mengalir pada Tube adalah refrigerant jenis R-134a, material 304 Stainless Steel dengan jumlah 73 Tube, tebal Tube 18 BWG, diameter luar Tube 1431,75 mm"> . Dari hasil penelitian ini dapat disimpulkan bahwa system OCR dapat ditukar dengan jenis sheel dan tube dengan spesifikasi diameter dalam Shell 19,25 in , menggunakan jumlah 73 tube, dengan  tebal 18 BWG, berbahan 304 Stainless Steel, fluida yang mengalir adalah R 134a.